Source: https://patents.google.com/patent/JP2010516593A/en
Timestamp: 2019-12-14 13:07:04
Document Index: 248505470

Matched Legal Cases: ['arts 418', 'art 418', 'art 418', 'arts 418', 'arts 418', 'art 418', 'art 418', 'art 418', 'art 418', 'art 418', 'art 418', 'art 418', 'art 418', 'art 418', 'art 418']

JP2010516593A - 3D automation selection module - Google Patents
3D automation selection module Download PDF
JP2010516593A
JP2010516593A JP2009547342A JP2009547342A JP2010516593A JP 2010516593 A JP2010516593 A JP 2010516593A JP 2009547342 A JP2009547342 A JP 2009547342A JP 2009547342 A JP2009547342 A JP 2009547342A JP 2010516593 A JP2010516593 A JP 2010516593A
JP2009547342A
ソボタ，エリザベス
バスティアン，ウィリアム・エイ，ザ・セカンド
バスティアン・マテリアル・ハンドリング・エルエルシー
2007-01-25 Priority to US11/626,869 priority Critical patent/US8276739B2/en
2008-01-08 Application filed by バスティアン・マテリアル・ハンドリング・エルエルシー filed Critical バスティアン・マテリアル・ハンドリング・エルエルシー
2008-01-08 Priority to PCT/US2008/050501 priority patent/WO2008091733A2/en
2010-05-20 Publication of JP2010516593A publication Critical patent/JP2010516593A/en
Individual goods or goods are stored in a vertical stack (or rack) of conveyors. A stack of conveyors is placed on either side of a vertical transport on which cartons, loads and / or pallets are loaded. Vertical transports can be lifted in the form of an elevator, and luggage on the conveyor can receive goods from various levels of the storage rack conveyor. In order to increase the speed of the loading process, goods can be loaded simultaneously and / or sequentially from both sides of the container. In one form, a cross belt conveyor is used to load the goods. An alternative or additionally a robot arm is used to load the goods. One or more conveyor drivers are used to drive multiple conveyors in order to pull goods to the conveyor loading position.
This application is a U.S. patent application filed January 25, 2007, which is incorporated herein by reference. Claim the priority of 11/626869.
The present invention generally relates to a system for processing an object, and more specifically, but not exclusively, to a system for processing a three-dimensional object, along with techniques for utilizing the system.
Selecting products at distribution centers for order processing has historically been one of the most labor intensive processes. The selection task is monotonous for human operators. This leads to good rations (such as wrong choices), high employee mobility, and inconsistent productivity. Furthermore, environments such as commercial refrigerators used to store food are uncomfortable or dangerous to human operators. The time required for storage and transport is yet another concern. The more the goods can be processed faster and can be loaded onto trucks, trains or other transports, the collection and delivery center can provide greater geographic area service. For example, if a truck can be loaded and unloaded faster, the truck can cover a longer distance in the same amount of time, so the service area that the distribution center can deliver is larger. Another ongoing issue for product distribution systems is product warehouse space. As real estate costs continue to increase, minimizing the scope of the warehouse becomes a greater concern.
Most warehouses only use that little available vertical space due to many factors, including limited scope to access items stored in high locations. Three-dimensional rack systems in the form of automated storage and recovery systems (often referred to as ASRS or AS / RS) have proposed storing goods on vertical storage racks. However, these vertical systems have some important commercial drawbacks. As an example, throughput is a problem for these vertical systems because moving additional vertical dimensions increases recovery time. In other words, retrieving goods from racks in a fast and efficient manner has been a limitation of most proposed systems. Also, it has been a problem to move the product in the rack to a position where the product can be collected. To address this problem, racks are typically very narrow and are usually designed to contain at most one or two pallets or cartons. In this way, the capacity of a given rack is significantly reduced and it reduces storage space utilization or efficiency. Furthermore, the technical complexity of these systems not only increases maintenance costs, but also tends to cause significant downtime. Due to the complex and automated nature of typical ASRS instruments, these systems tended to be strict about how goods are handled and the types in which the system can be utilized. Such systems can generally only handle pallets or cases with certain dimensions, which limit their flexibility. Generally speaking, goods from racks can be supplied using gravity feeds or power systems. An example of a gravity feeder system is what is called an “A frame” type storage rack. In general, A frame racks are light and contain items that are not easily crushed, such as pharmaceutical products. While useful in limited situations, A-frames cannot be used with large items and / or fragile items such as electronics, food. On the other hand, the power system can accommodate large items on a generally flat conveyor belt. Assuming that the transport device is usually flat, the goods are spaced apart to avoid damage caused by goods that collide with each other. However, power rack systems are not economically practical due to the large number of motors required for each stack transporter. The transporter motor is expensive and each level of the vertical stack can include multiple individual transporters that are individually moved by the transporter motor. It should be appreciated that as the number of stack levels increases, the cost associated with the transporter motor increases. In addition, if many motors are included, the risk of at least one motor that fails is increased. Furthermore, auxiliary costs such as performing routine motor preventive maintenance can reduce such system costs.
Thus, there is a need for improvement in this area.
One embodiment of the invention relates to a storage system. The storage system includes at least two storage racks arranged to face each other. Each storage rack includes two or more levels having one or more rack conveyors in which goods (items) are accommodated. The vertical transport is disposed between storage racks, and the vertical transport includes one or more robotic arms secured to the vertical transport so as to move simultaneously with the vertical transport. The elevator is configured to move the vertical transport vertically between levels, and the robotic arm can load goods from the rack conveyor onto the vertical transport.
Another embodiment relates to a storage system that includes a storage rack. A storage rack includes two or more rack conveyors in which goods are stored. The conveyor driver is configured to move along a storage rack to move two or more rack conveyors.
Yet another embodiment relates to a storage system that includes at least two storage racks. The storage racks are arranged to face each other, and the storage racks each include two or more levels having one or more rack conveyors in which goods are stored. Vertical transport aircraft are placed between storage racks. The vertical transport includes a cross belt conveyor configured to load merchandise from the rack conveyor onto the vertical transport. An elevator is configured to move the vertical transport vertically between levels.
Yet another embodiment relates to a technique in which a vertical transporter flies vertically to a first vertical position along a storage rack having a first level with respect to a first rack conveyor. One or more first items from a first rack conveyor located at the first level are loaded onto a vertical transport. The vertical transport remains in the first vertical position, but the one or more second items are placed on the vertical transport from a second rack conveyor positioned at a second level different from the first level. Can be placed.
Yet another embodiment relates to a technique in which a first conveyor is driven by a conveyor driver to place a first product on the first conveyor at a first load position. The conveyor driver is moved toward the second conveyor. The second conveyor is driven by a conveyor driver to place the second product on the second conveyor at the second load position.
Further forms, objects, features, forms, benefits, advantages and embodiments of the present invention will become apparent from the detailed description and drawings provided herein.
FIG. 1 is a perspective view of a three-dimensional storage system according to one embodiment. FIG. 2 is a top view of the system of FIG. FIG. 3 is a side view of the system of FIG. FIG. 4 is an enlarged view of the system of FIG. FIG. 5 is a front end view of the system of FIG. 6 is an enlarged perspective view of the vertical transport used in the system of FIG. FIG. 7 is a cross-sectional view of the vertical transport aircraft of FIG. FIG. 8 is a top view of the vertical transport aircraft of FIG. FIG. 9 is a perspective view of the vertical transport aircraft of FIG. 10 is an enlarged side view showing a first example of how a rack conveyor can be driven by the conveyor driver of the system of FIG. FIG. 11 is an enlarged side view showing a second example of how a rack conveyor can be driven by the conveyor driver of the system of FIG. FIG. 12 is a perspective view of a conveyor driver according to another embodiment. FIG. 13 is an enlarged side view showing engagement between the conveyor driver and rack conveyor of FIG. FIG. 14 is an enlarged view of a conveyor driver according to still another embodiment. FIG. 15 is an enlarged view of a conveyor driver according to still another embodiment. FIG. 16 is a partial perspective view of the system of FIG. 1 showing the various stages of the loading sequence. FIG. 17 is a partial perspective view of the system of FIG. 1 showing the various stages of the loading sequence. FIG. 18 is a front view of a three-dimensional storage system according to still another embodiment. FIG. 19 is a top view of the system of FIG. 20 is a cross-sectional view of the system of FIG. FIG. 21 is an enlarged front view of the system of FIG. FIG. 22 is a perspective view of the system of FIG. FIG. 23 is a partial perspective view of the system of FIG. 18 showing the various stages of the loading sequence. FIG. 24 is a partial perspective view of the system of FIG. 18 showing the various stages of the loading sequence. FIG. 25 is a partial perspective view of the system of FIG. 18 showing the various stages of the loading sequence. FIG. 26 is a partial perspective view of the system of FIG. 18 showing the various stages of the loading sequence. FIG. 27 is a top view of a three-dimensional storage system according to still another embodiment. FIG. 28 is an enlarged front view of the system of FIG. FIG. 29 is an enlarged perspective view of the replenishment station of the system of FIG.
For the purpose of promoting an understanding of the principles of the invention, reference is made to the embodiments illustrated in the drawings, and specific language is used to describe the same. Nevertheless, it is understood that it does not limit the scope of the invention. Substitutions and modifications of the described embodiments and application of the principles of the invention described herein are generally contemplated as would occur to those skilled in the art to which the invention pertains. While one embodiment of the present invention has been shown in detail, it will be apparent to those skilled in the art that general features not related to the invention have not been shown for clarity.
For the convenience of the reader, it is first mentioned that the drawing in which an element is first disclosed is typically indicated by the leftmost digit of the corresponding reference number. For example, components identified with a 100 series reference (eg, 100, 101, 102, 103, etc.) are typically first disclosed with respect to FIG. 1, and a 200 series reference (eg, 200, 201, 202, The components identified at 203) are typically disclosed first with respect to FIG.
The present invention generally relates to a three-dimensional storage system. Individual goods (items) or a plurality of goods (items) in a container are stored in a vertical stack (or rack) of conveyors. Compared to conventional A-frame storage racks, the rack conveyor can store large items and containers because the items are stored in a generally flat and non-contact manner that minimizes damage. The selected products or goods do not need to be stacked as in the A frame. A stack of conveyors is placed on either side of a vertical transport on which cartons or loads are placed. The vertical transport can be raised vertically in a manner similar to an elevator so that the conveyor transport can receive goods from various levels of the storage rack conveyor. In order to increase the speed of the loading process, goods can be loaded into the container simultaneously and / or continuously from both sides of the container.
In one embodiment, the cross belt conveyor system surrounds the vertical transport and the cross belt conveyor system is coupled to the elevator portion of the vertical transport so that the cross belt conveyor system moves simultaneously vertically with the vertical transport. Cross-belt conveyor systems include many separate conveyor belts that can carry goods individually or collectively. The individual conveyor belt portions of the cross belt conveyor system can move or rotate around a vertical transport. The cross belt conveyor system allows multiple rack positions to be unloaded simultaneously and allows a load to be filled simultaneously from two or more directions. The robotic arm can be connected to the elevator to move large loads and / or to clear up the system jam. In other embodiments, the cross belt conveyor system is eliminated and the robotic arm is used to load / unload goods from various racks and loads. In this system, the cross-belt conveyor and the robotic arm allow the merchandise to be selected or placed at a rate of up to 4 or 5 times the degree of a human operator with almost 100% accuracy. Operating costs are significantly reduced to eliminate the human beings who choose.
In order to reduce the number of conveyor motors required, the individual conveyors of the rack are not dedicated conveyor motors. Rather, the individual conveyor drive motors are moved to a position to operate the rack conveyor on a necessary basis. In one embodiment, the conveyor drive motor can slide or else the sides of the vertical transport to individually move the rack conveyor on the rack level where the vertical transport is currently located. Can move along the vertical direction. As the vertical transport moves vertically, the conveyor drive motor simultaneously moves vertically with the vertical transport to move the conveyor on the next level. In other embodiments, the conveyor drive motor can move vertically independently of the vertical transport. In yet another variation, the drive motor does not move vertically, but rather the system has one or more drive motors provided to move the conveyor on each rack level. Also, selected conveyors with heavy loads are provided with conveyor drive motors, and other conveyors are conceivable hybrid systems that share a common conveyor drive motor.
A three-dimensional storage system 100 according to one (among many) embodiments of the present invention will first be described in connection with FIGS. As can be seen, FIG. 1 shows a perspective view of the system 100, and FIG. 2 shows a top view of the system 100. FIG. 3 shows a full side view of the system 100. FIG. 4 shows an enlarged side view of the system 100, and FIG. 5 shows a front view of the system 100.
Turning to FIG. 1, the system 100 includes a series of conveyors of vertical racks 102 disposed on opposite sides of a centrally disposed vertical transport or carrier 104. The rack 102 forms a passage 105 through which the vertical transport 104 can move vertically. In the illustrated embodiment, the entrance conveyor 106 and the exit conveyor 108 are located at opposite ends of the vertical transport 104. The elevator 110 is configured to move the vertical transport 104 vertically in the passage 105 between the racks 102. The system 100 further includes a refill station 112 where an operator refills the rack 102. The refill station 112 of the illustrated embodiment is configured to move horizontally along the guide rail 114 on the floor 116 as well as vertically to refill the rack 102. As will be described below, the rack 102 can be replenished in other ways, such as via a vertical transport 104.
The ingress conveyor 106 supplies luggage, cartons, pallets, and / or other types of containers 118 to the vertical transport 104. Once a sufficient number of loads 118 have been loaded, the elevator 110 lifts the vertical transport 104 to one or more levels of the rack 102 on which the goods 120, commonly referred to as inventory management units (SKUs), are loaded. Additional luggage, slip-sheets, and / or other packaging materials and paperwork can be placed in the luggage 118 as well. The merchandise or inventory management unit 120 on the rack 102 may include a collection of individual products or merchandise collected from each other, for example in boxes. Once the parcel 118 is filled with the goods 120 required to execute the individual orders, the elevator 110 causes the vertical transport 104 to be placed on the floor 116 so that the parcel 118 is placed on the exit conveyor 108. Take it down. In the illustrated embodiment, the entrance conveyor 106 and the exit conveyor 108 are located at opposite ends of the vertical transport 104, but these conveyors can be configured in different ways. As an example, the entry conveyor 106 and the exit conveyor 108 can be located on the same side of the vertical transport 104 (FIG. 27). As another example, the entrance conveyor 106 and the exit conveyor 108 are combined into a single conveyor or conveyor spool that handles both loading and unloading of loads 118 from the vertical transport 104. Although the illustrated conveyor is a belt conveyor, it will be appreciated that other types of conveyors can use similar roller, bucket, chain and cart loaded track conveyors, to name a few examples. In the illustrated embodiment, the loads 118 are arranged in a single line or row, but in other embodiments, the loads 118 are arranged in parallel or in multiple rows to increase the density of the loads 118. Can be arranged.
With reference to FIGS. 1-3, each rack 102 has one or more vertical levels 122 in which goods 120 are stored. The various levels 122 can be uniformly spaced or non-uniformly spaced. In the embodiment of FIG. 1, the vertical spacing between levels 122 becomes narrower as the level increases. This allows a possibly large or thick item 120 to be stored near the floor 116 and a small and possibly light item 120 to be stored near the top of the rack 102. This configuration helps conserve energy because less energy is required to move heavy goods to and from the lower level 122. In addition, heavier items are stored at a lower level 122 with less risk, improving safety. As can be seen, each level 122 has one or more rack conveyors 124 that are freely movable with respect to each other. The illustrated rack conveyor 124 is a belt conveyor, but it will be appreciated that other types of conveyors may use similar rollers, conveyors, and the like. Although the rack conveyor 124 is generally flat or horizontal with respect to the floor 116, it is contemplated that the rack conveyor 124 can be slightly or significantly inclined if desired.
The rack conveyor 124 in the illustrated embodiment is not self-powered. That is, each rack conveyor 124 does not have a motor for driving the rack conveyor 124. As previously described, other embodiments of the rack 102 may have a hybrid system in which some rack conveyors 124 are self-powered and other rack conveyors 124 are not self-powered. Further, as can be appreciated, selected features of the system 102 can be incorporated into other designs in which all rack conveyors 124 are self-powered. Nevertheless, as previously described, having a rack conveyor 124 driven by a separate external power source reduces the number of conveyor motors required for the system 102. Referring to FIG. 1, it will be appreciated that if each rack conveyor 124 requires a motor, hundreds of conveyor motors are required. As will be appreciated, the system 100 of FIG. 1 has less than ten conveyor motors or zero (as shown in FIG. 11). This substantial reduction in the number of conveyor motors reduces the overall system cost as well as operating costs. For example, expensive wiring and control of the conveyor motor can be eliminated from the rack 102. It should be noted that more or fewer conveyor motors may be used than the number of motors described and illustrated herein.
4 and 5, the elevator 110 for vertically moving the vertical transport 104 in the illustrated embodiment includes one or more pulleys 402, a counterweight 404 and a motor attached to the elevator support structure 406. This is a tow type elevator. The cable on the pulley 402 is attached to the vertical transport 104 and the motor moves the vertical transport 104 through the cable along with the counterweight 404. It should be understood that other types of elevators can be used. For example, other embodiments of elevator 110 may include servo motors, linear guidance systems, and / or hydraulic, electromagnetic and / or lift elevators, to name a few examples.
The vertical transport 104 of FIG. 4 includes one or more suspensions from a cross belt conveyor 408, a lower transport conveyor 410, a support frame 412 having guide rails 414, and guide rails 414 configured to move along the guide rails 414. Robot arm (or robot) 416. The robot arm 416 has been proven to provide high reliability. In one example, the robot arm 416 is in the form of an industrial robot, but it should be understood that other types of robots can be used. For example, the robot arm 416 of one embodiment is made from composite material, aluminum, and / or other light materials to reduce weight, which provides fast acceleration and deceleration. In a special case, the robot arm 416 is a high-speed invert robot, such as the Advert Cobra® Invert Selective Compliant Articulated / Assembly Robot Arm (SCARA) robot provided by the Adept Technology company. Of course, other types of robots can use similar 6-axis high durability industrial robots. The robot arm 416 can be driven in many ways, such as via an electric motor, a pneumatic actuator and / or a hydraulic actuator. The cross belt conveyor 408 is used to move the goods 120 from the storage rack 102 to the luggage 118 (or vice versa). The cross belt conveyor 408 includes individual carts 418 connected to each other that are movable along a cart track or rail 420. In the illustrated embodiment, the trolleys 418 are connected to each other to form a continuous endless loop, but in other embodiments, many trolleys 418 are gathered together and moved together along the track 420 in an asynchronous manner. A train can be formed. For example, the cross-belt conveyor 408 in another embodiment has a train of two carriages 410 disposed on both sides of the luggage 118. Two separate trains are configured to move independently of each other for faster processing.
Referring to FIG. 5, by hanging from the guide rail 414, the robot arm 416 does not interfere with the loading and unloading of the product 120 from the cross belt conveyor 408, and vertically above the cross belt conveyor 408 and the lower transport conveyor 410. Can move in the direction. The robot arm 416 can perform many tasks. For example, the robotic arm 416 can be used to select the product 120 from the rack conveyor 124 or place the product 120 on the rack conveyor 124 (or even the cross-belt conveyor 408). As can be seen in FIG. 5, the robotic arm 416 can work against multiple levels 122 of the rack conveyor 124 without having to move the vertical transport 104 vertically, which is an order procurement process. Can speed up. To further speed up the loading process, the robot arm 416 can place the product 120 into the load 118 at the same time as the cross belt conveyor 408 places the product 120 thereon. The robot arm 416 can also be used to handle supply issues such as removing the pressed product 120. Further, the robot arm 416 can be used to replenish the goods 120 on the rack conveyor 124 by unloading the goods 120 from the vertical transport 104. While replenishing the goods 120, the robot arm 416 and the vertical transport 104 can be used to reorder the goods 120 on other racks 102 and / or conveyors 124.
In the illustrated embodiment, the robot arm 416 includes a rail engaging portion 502 where the robot arm 416 engages the guide rail 414. Although only a single guide rail 414 is shown in the figure, it should be understood that more than one guide rail 414 can be used. For example, a system of two (or more) guide rails 414 can be used in which the robot arms 416 are attached to the guide rails 414 that are specific to them. This configuration allows the robot arms 416 to work on the entire length of the rack 102 without significantly interfering with each other. If two robot arms 416 are used, the robot arms 416 can be provided primarily to work against the rack 102 on a particular side. In other variations, the robot arm 416 can work against both sides of the rack at the same time. The engagement portion 502 includes a power source, a motor, a sensor, a controller, etc., and allows the robot arm 416 to move along the guide rail 414. As will be appreciated, the guide rail 414 can include a contact wire that supplies power to the robot arm 416 as well as a transmitted signal for controlling the robot arm 416. It should be appreciated that the robot arm 416 can send and receive signals in a number of ways, such as via wireless and / or wired connections. In addition, the robot arm 416 allows the robot arm 416 to rotate in order to work with both the rack 102 and the arm portion 506 with one or more movable joints that place the end effectors 508. Rotating portion 504 that has The end effector 508 of the robot arm 416 can grip and hold the soy sauce 120, such as via mechanical gripping and / or vacuum techniques, to name a few. In one embodiment, end effector 508 includes a mechanical grip having a vacuum finger suction cup. As shown, the robot arm 416 includes a field of view system 510 having one or more cameras 512 that are used to position items 120, luggage 118, structures, other robot arms 416, and the like. As an example, the vision system 510 allows the robot arm 416 to automatically place and insert the item 120 into the load 118. Also, the robot arm 416 can be controlled manually or semi-automatically. For example, the operator can remotely control the movement of the robot arm 416 by viewing the position of the robot arm 416 through the camera 512. In addition, the visual field system 510 can be used for collision avoidance of the robot arm 416.
FIG. 6 shows an enlarged perspective view of the vertical transport aircraft 104. As can be seen, each cart 418 of the cross belt conveyor 408 comprises a small individual power belt cart conveyor 602 mounted generally perpendicular to the direction of travel for the loop of cart 418. Arrows 604 and 606 in FIG. 6 indicate the direction in which the carriage 418 moves along the track 420 of the cross belt conveyor 408. Each trolley conveyor 602 can move independently of each other. As an example, one truck 418 can be placed and other trucks 418 can be unloaded or left unused.
Between the cross belt conveyor 408 and the luggage 118 (both sides), the vertical transport machine 104 has a guide or slide slope 608, and the goods 120 from the carriage 418 are loaded on the guide or slide slope 608. Slide in. In the illustrated embodiment, the slope 608 includes a series of isolation tables 610 that define a lifting bar on which the item 120 slides into the respective load 118. The isolation table 610 of the illustrated embodiment is triangular (arrow) shaped to enhance the guidance of the product 120, but in other embodiments it is contemplated that the isolation table 610 can be of different shapes. The loads 118 on the transport conveyor 410 are generally aligned with the individual loads 118 and / or the designed loading area. If necessary, the vertical transport 104 can include various sensors, stops, bar code readers, etc. to ensure that the luggage 118 is properly placed in the correct location. For goods 120 that do not require luggage 118, such as heavy or large goods 120, the transport conveyor 410 is empty (i.e., can be loaded directly onto the transport conveyor 410 via the robot arm 416). State without luggage 118). In view of this, it should be understood that luggage, pallets, containers and other support structures 118 may be selected in other embodiments. As an example, if only a full case of goods 120 is selected, no luggage or carton 118 is required, and the full case can be placed directly on the transport conveyor 410 or pallet. In another example, if the full case is selected, the robotic arm 416 can build the entire pallet on the transport conveyor 410 (eg, loading a mixed pallet for the beverage industry). The transport conveyor 410 in the illustrated embodiment is a belt conveyor, but it should be understood that other types of conveyors such as those described above can be used. The transport conveyor 410 of FIG. 6 is secured to the frame 412 so that the elevator 110 can lift the load 118 on the transport conveyor 410. As described in selected embodiments below, the transport conveyor 410 can remain on the floor 116 when the vertical transport 104 is raised. In this example, the frame 412 of the vertical transport 104 has rails that hold the luggage 118 when raised. In another variation, the vertical transport 104 is eliminated so that the luggage 118 can be placed directly on the frame 412 of the vertical transport 104.
FIG. 7 shows an enlarged partial cross-sectional view of the vertical transport aircraft 104 as the goods 120 are loaded into the luggage 118. A cross-belt conveyor 408 is disposed on one or more sides of the load 118 (in the illustrated embodiment, on both sides of the load 118), and items 120 from opposing racks 102 can be loaded simultaneously or nearly simultaneously. Once the item 120 is unloaded from the carriage 418, the next carriage 418 can be moved to a location where the next article 120 is lowered into the load 118 by a cross-belt conveyor circulating in the direction 604 or 606 (FIG. 6). . As will be appreciated, this allows the package 118 to be quickly filled with merchandise from a predetermined level 122, which allows the order to be fulfilled in a rapid manner. As previously mentioned, vertical movement has traditionally tended to slow down order fulfillment, but having the possibility of simultaneously loading goods from opposing vertical conveyor stacks simultaneously realizes vertical management equipment commercially In order to eliminate this problem.
This ability to load luggage 118 quickly may be better understood from FIGS. 8 and 9 show a top view and a perspective view of the vertical transport aircraft 104, respectively. As can be seen, the support frame 412 of the vertical transport 104 has one or more elevator guides 801 slidably received around the elevator support structure 406 to stabilize the vertical transport 104 during operation. Have. The cross belt conveyor 408 has two transport portions 802 disposed on opposite sides of the transport conveyor 410 that are connected to each other by two loop end portions 804 to form a continuous loop. In the illustrated embodiment, the transport portion 802 is arranged in a generally straight and parallel manner, and the loop end portion 804 is generally annular. However, it should be understood that the cross belt conveyor 408 can be shaped differently in other embodiments.
With the ability of the cross-belt conveyor 408 to move counterclockwise 604 or clockwise 606, the packages 118 to be delivered do not need to be aligned with the rack conveyor 124 that supplies the necessary goods 120 or evenly placed near the rack conveyor 124. . For example, referring to FIGS. 2 and 8, as shown in FIG. 2 and as indicated by arrow 806 in FIG. 8, the product 120 from the top left rack conveyor 124 is indicated by arrow 808 in FIG. As shown, simple rotation of the cross belt conveyor 408 in the clockwise direction 606 (FIG. 8) can be transported to the rightmost load 118 on the vertical transport 104. In particular, the product 120 from the leftmost rack conveyor 124 is placed on a carriage 418 located at position 806. In this example, the cross-belt conveyor 408 is rotated clockwise 606 from position 806 until the carriage 418 with the article 120 is located at position 808, and once it reaches position 808, the article 120 is removed from the carriage 418. It is lowered into the luggage 118. It should be understood that there is no need to stop during the loading and unloading of goods so that the process is nearly continuous. In addition, multiple items 120 from the same rack conveyor 124 can be stacked on a continuous carriage 418 to form a virtual flow of items 120 on the cross-belt conveyor 408. It should be understood that the items 120 can be loaded in other ways, such as alternative patterns. During routine operation, the plurality of rack conveyors 124 are unloaded and the plurality of loads 118 are loaded simultaneously or nearly simultaneously, thereby significantly speeding up the loading / unloading process. Furthermore, the goods 120 can be loaded simultaneously from both sides of the luggage 118, thereby increasing loading efficiency. Since carts 418 do not require reloading of carts 418, multiple goods 120 can be queued on a single cart 418 so that the same cart 418 can work on multiple packages 118. Can do. During loading of the load 118, the cross belt conveyor 408 can change its direction multiple times to load the load 118 in an efficient manner.
In one embodiment, each rack conveyor 124 has a conveyor motor so that each rack conveyor 124 is self-powered. However, as mentioned above, having individual rack conveyors 124 that are self-powered via individual motors has drawbacks including high construction and management costs. In order to address these issues, the system 100 of another embodiment has a rank conveyor 124 that does not have a dedicated conveyor motor; instead, the system 100 can be a temporary or required foundation rack conveyor. It only drives 124.
FIG. 10 shows an enlarged side view of an example where the rack conveyor is driven on the required foundation. As shown, the vertical transport 104 has one or more conveyor drivers 1002 attached to a truck truck 420 of a cross belt conveyor 408. As can be seen, the conveyor driver 1002 includes a main body 1004 on which the conveyor driver 1002 can be fixed to or slid horizontally along the truck track 420. In the illustrated embodiment, the conveyor driver 1002 is configured to move horizontally along the truck track 420. The conveyor driver 1002 can move horizontally via a chain drive, belt drive, magnetic drive, etc. and / or the conveyor driver 1002 can incorporate an internal drive that moves the conveyor driver horizontally. A pivot arm 1006 is attached to the main body 1004, and the pivot arm 1006 has a drive roller or wheel 1008 at its end that is used to drive the rack conveyor 124. The main body 1004 includes a motor piston or other type of actuator, such as air, hydraulic and / or electric drive actuator, that rotates the pivot arm 1006 as indicated by arrow 1010, and the drive wheel 1008 includes Engage and disengage from the rack conveyor 124. In FIG. 10, the drive wheel 1008 engages the underside of the rack conveyor 124 so that it does not interfere with the goods 120 on the rack conveyor 124, but the conveyor driver 1002 is racked in other positions and / or different ways. Engage with conveyor 124. For example, another embodiment of the conveyor driver 1002 includes a male connection that engages a female connection adjacent to the rack conveyor 124 and a bevel gear that rotates the conveyor drive rollers in either direction. The drive wheel 1008 of the conveyor driver 1002 in one embodiment is self-powered by a motor or the like, and in other embodiments the drive wheel 1008 is remotely driven by a motor or the like of the main body 1004 such as via a drive belt or drive shaft. Is done. It should be understood that the drive wheel 1008 can be driven in other ways. For example, as described below in connection with FIG. 11, the drive wheel 1008 may not be driven, but the drive wheel 1008 is used to transmit power from the cross belt conveyor 408 to the rack conveyor 124. Can.
Referring to the embodiment of FIG. 10, the drive wheel 1008 rotates before, during or after the drive wheel 1008 contacts the rack conveyor 124. The engagement between the drive wheel 1008 and the rack conveyor 124 can be reinforced by surface irregularities, a gear-like structure, tire marks, and the like. In the illustrated embodiment, the drive wheel 1008 rotates counterclockwise to advance the product 120 on the rack conveyor 124, as indicated by the arrow 1012, but the drive wheel 1008 is in a different direction in other embodiments. It should be understood that it can rotate. Further, the drive wheel 1008 can alternate directions depending on whether the rack conveyor 124 is loaded or unloaded. As the drive wheel 1008 rotates in the counterclockwise direction 1012, the rollers of the rack conveyor 124 rotate in the clockwise direction 1014, thereby moving the product 120 in the direction 1016 on the carriage 418 of the cross belt conveyor 408. Once the product 120 is loaded on the cart 418, the drive wheel 1008 continues to rotate and loads the next product on the same cart 418 or other cart 418 located adjacent to the rack conveyor 124. Once the desired item 120 is unloaded from the rack conveyor 124, the conveyor driver 1002 disengages the drive wheel 1008 from the rack conveyor 124 by rotating the pivot arm 1006 in the downward direction 1018. As the vertical transport 104 is moved vertically, the conveyor driver 1002 rotates the pivot arm 1006 in the downward direction 1018 to a position where the drive wheel 1008 does not interfere with the vertical transport 104 descending or ascending. It should be understood that interference between the conveyor driver 1002 and the rack conveyor 124 can be avoided in other ways. For example, the conveyor driver 1002 can be moved to one of the ends of the vertical transport 104, near one of the two loop ends of the cross belt conveyor 408, or between the rack conveyors 124 (ie, between the racks 102). Can do. If different types of conveyor drivers 1002 are used, collision avoidance between the rack conveyor 124 and the conveyor driver 1002 is found in other ways during the movement of the vertical transport 104.
Referring to FIG. 11, the drive wheel 1008 of this embodiment is not driven. As can be seen, the drive wheel 1008 of the conveyor driver 1002 contacts the conveyor belts of both the carriage 418 and the storage conveyor 124. The conveyor belt 602 of the cart 418 in the illustrated example is driven, and the drive wheel 1008 of the conveyor driver 1002 transmits this power from the cart 418 to the rack conveyor 124 and the goods 120 are unloaded from the rack conveyor 124 (or rack conveyor 124). Can be loaded). In other embodiments, both the carriage 418 and the rack conveyor 124 of the cross belt conveyor 408 are not driven, but the drive wheel 1008 of the conveyor driver 1002 is driven. The carriage 418 and the rack conveyor 124 are driven simultaneously when the drive wheel 1008 of the conveyor driver 1002 is positioned as shown in FIG. It should be understood that the drive wheel 1008 can be moved to contact only one of the conveyors, and the rack conveyor 124 and the carriage 418 can move independently. With this embodiment, it should be understood that the number of drive components, such as a conveyor motor for the cross belt conveyor 408, can be further reduced.
In the embodiment of FIGS. 10 and 11, the conveyor driver 1002 is configured to slide or move along a truck truck 420 (or other support structure), and the conveyor driver 1002 drives a number of rack conveyors 124. can do. In one particular variation, the vertical transport 104 has a pair of conveyor drivers 1002 disposed on opposite sides of the vertical transport 104, each conveyor driver 1002 driving a rack conveyor 124 relative to one rack 102. Provided to be. For this variation, one form of vertical transport 104 has a single conveyor driver 1002 on both sides facing each rack 102, and another form of vertical transport 104 drives each rack 102. Two or more conveyor drivers 1002 are provided. In yet another variation, the conveyor driver 1002 can be annular around the vertical transport 104 in a manner similar to the cart 418 of the cross-belt conveyor 408, with the conveyor driver 1002 driving the rack 102. Can be utilized. With this configuration, a single conveyor driver 1002 can drive the rack conveyor 124 for the entire system 100, but typically one or more conveyor drivers 1002 speed up the process as well as certain conveyor drivers. It is possible that 1002 can be used to act as a backup in case of failure. With respect to the conveyor driver 1002 associated with the vertical transport 104, all of the high maintenance items that tend to wear out or have a higher failure rate can be easily lowered for a single device, service. Maintenance can be simplified. For example, when resting, the conveyor driver 1002 can be easily removed and replaced with a new conveyor driver with minimal downtime.
By having the ability to move vertically with and / or along the vertical transport 104, the number of conveyor drivers 1002 required to drive the system 100 is significantly reduced. Nevertheless, moving the conveyor driver 1002 horizontally along the vertical transport 104 can slow down the loading of the cross-belt conveyor 408, so that in other embodiments, multiple conveyor drivers 1002 can transport vertically. Fixed along the length of each side of the machine 104. The number of conveyor drivers 1002 in this embodiment matches the number of rows of rack conveyors 124 in rack 102. In other words, a conveyor driver 1002 is disposed in association with each rack conveyor 124 for a predetermined level 122 of the rack 102. With this configuration, the vertical transport 104 can drive all rack conveyors 124 for the individual levels 122 of the rack 102 simultaneously. As will be appreciated, even with this configuration, the number of drive motors required is significantly reduced.
FIG. 12 shows another modification of the conveyor driver 1002 shown in FIG. Similar to the previous embodiment, the conveyor driver 1002 of FIG. 12 includes a main body 1204 and a pivot or engagement arm 1206. A drive belt 1208 for driving the rack conveyor 124 moves around the engagement arm 1206. As can be seen, the drive belt 1208 has a texturing 1210 that enhances the engagement between the drive belt 1208 and the rack conveyor 124. Referring to FIG. 13, the drive belt 1208 has a series of ribs 1302 (or vice versa) that engage corresponding notches 1304 of the rack conveyor 124. Similar to the previous embodiment, the engagement arm 1206 is configured to pivot or retract outward when moved to avoid a collision with the rack 102. It is contemplated that other types of mechanisms can be used to drive the rack conveyor 124. For example, the conveyor driver 1202 can incorporate separate gears that mesh with each other to establish a male-female connection. The conveyor driver 1202 of FIG. 12 can be driven (or not driven) in the manner described above in connection with the previous embodiment.
In the above example, the conveyor drivers 1002, 1202 move vertically with the vertical transport 104. However, there are intervals when the loading speed is hindered by such a configuration. Some embodiments described below address this problem by allowing the rack conveyor 124 to be directed even when the vertical transport 104 is not located at the same level 122 on the rack 102. These configurations allow for more effective indication of the rack conveyor 124. For example, when the robot arm 416 removes goods 120 from the rack conveyor 124 and there are no more goods 120 required from the same rack conveyor 124, the conveyor drivers 1002, 1202 may cause the vertical transport 104 to be located at different levels 122. Until then and / or until the vertical transport 104 is lowered to unload the load 118 on the exit conveyor 108 (FIG. 2). As another example, the robot arm 416 can be used in various ways because the conveyor drivers 1002, 1202 can direct the rack conveyor 124 located at various levels, regardless of where the vertical transport 104 is located. The product 120 can be arranged or collected from the level 122. As described above, this is the same as the cross belt conveyor 408 unloads (or loads) the rank conveyor 124 at different levels 122, while the robot arm 416 unloads goods 120 from the rack conveyor 124 at level 122 (see FIG. Or loading).
FIG. 14 illustrates an enlarged view of a conveyor drive system 1400 according to one embodiment. As can be seen, the conveyor driver 1202 of the system 1400 is associated with each level 122 of the rack 102 so that the conveyor driver 1202 can move vertically. In the illustrated embodiment, each level 122 of the rack 102 has a single conveyor driver 1202, but each level 122 can have one or more conveyor drivers 1202 if desired. The conveyor driver 1202 can move horizontally along guide rails 1402 that are secured to one or more risers 1406 of the rack 102 as indicated by arrows 1404. The conveyor driver 1202 can be moved horizontally by a chain drive, belt drive, magnetic drive, etc. and / or the conveyor driver 1202 can incorporate an internal driver to move the conveyor driver 1202 horizontally. It should be understood that the conveyor driver 1202 can be moved in other ways. In other embodiments, external structures (other than rack 102) can be used to secure guide rail 1402 in a vertical securing manner. By having one or more conveyor drivers 1202 dedicated to each level 122, the rack conveyors 124 on the various levels 122 can be directed simultaneously or in a substantially simultaneous manner. Even with this semi-dedicated configuration, the number of conveyor drivers 1202 required is significantly reduced because the conveyor driver 1202 can work against one or more rack conveyors 124 by moving in the horizontal direction 1404. The In one form, the conveyor driver 1202 can be positioned along both sides of the rack 102 facing the vertical transport 104, and in other forms the conveyor driver 1202 avoids interference with the vertical transport 104. Therefore, it can be placed at the outer end of the rack 102 facing away from the vertical transport 104.
In other embodiments described below, the conveyor drivers 1002, 1202 operate independently of the vertical transport 104. That is, the conveyor drivers 1002 and 1202 can move in the vertical direction independently of the vertical transport machine 104. This allows the conveyor drivers 1002, 1202 to direct the conveyor 124 before, during or after the vertical transport 104 is positioned at a particular level 122.
FIG. 15 shows an enlarged view of a conveyor drive system 1500 according to another embodiment. In the conveyor drive system 1500 of FIG. 15, the conveyor driver 1202 can be moved in the horizontal direction 1404 and the vertical direction 1504 by a lift device or drive elevator 1502. Conveyor driver 1202 is attached to guide rail 1402 so that conveyor driver 1202 can move or slide horizontally along guide rail 1402 in the same manner as described above with respect to FIG. In the illustrated embodiment, the guide rail 1402 has a single conveyor driver 1202, but the guide rail 1402 can have one or more conveyor drivers 1202 in other embodiments. As can be seen, the guide rail 1402 of FIG. 15 is fixed to the support or guide portion 1506 of the drive elevator 1502 that guides the guide rail 1402 along with the conveyor driver 1202 in the vertical direction 1504. One or more guide portions 1506 slide along one or more risers 1406 of the rack 102. Alternatively or additionally, the guide portion 1506 can move along other external structures besides the riser 1406 of the rack 102. In the illustrated embodiment, the drive elevator 1502 is a traction type elevator that includes one or more pulleys, a counterweight and a motor attached to the guide 1506. One or more cables 1508 on the pulley are attached to the guide portion 1506, and the motor moves the guide rail 1402 by the cable 1508 along with the counterweight. It should be understood that other types of elevators can be used. For example, other embodiments of the elevator 1502 can include hydraulic, electromagnetic and / or lift elevators, to name a few examples. With respect to the system 1500 of FIG. 15, the conveyor driver 1202 can work on any level 122 of the rack conveyor 124 regardless of the vertical transport 104. In the illustrated example, the guide rail 1402 is a separate linear portion, but in other variations, the guide rail 1402 can have different shapes. For example, the guide rail 1402 can be annular in a manner similar to the cross belt conveyor 408, and the annular guide rail 1402 can be slightly larger in size than the vertical transport 104, and the guide rail 1402 Can move independently of the vertical transport 104 without interference.
As will be appreciated, the vertical transport 104 can be mounted in a number of different arrangements. For example, with reference to FIG. 1, the vertical transport 104 can begin loading at the bottom of the rack 102 and can move up during loading (or unloading) of the goods 120 from the rack conveyor 124. For this example, the item 120 can be loaded or unloaded in an almost immediate manner. With this method of loading, the heavy goods 120 are loaded on the bottom of the luggage 118, thereby reducing the possibility that the light goods 120 will be crushed. As another example, the vertical transport 104 may first be raised to the top level 122 or the highest level 122 of the rack 102 from which goods 120 need to be unloaded. The vertical transport 104 is then lowered so that the goods 120 are loaded from various levels 122. It should be understood that loading the product 120 in this manner reduces energy consumption because the conveyor elevator 110 does not need to raise the vertical transport 104 when loading the product 120. In order to increase the speed of the loading or unloading process and conserve energy, the high-demand items 120 can be conveniently located where they are easily accessible. For example, goods 120 with high demand can be placed at the level 122 below the rack 102, while goods 120 with low demand can be placed at the high level 122. Further, high demand items 120 may be collected on a rack conveyor 124 centrally located within a predetermined level 122 so as to reduce the average travel distance between the high demand items 120 and the luggage 118. it can. Alternatively or additionally, high-demand items 120 may be placed on a single level 122 in a plurality of rack conveyors 124 at uniform or non-uniform intervals to minimize the travel distance during loading of loads 118. (Or multiple levels 122).
16 and 17 are partial perspective views of the system 100 showing one of the order in which the goods 120 are stacked. To simplify the illustration, the rack 102 is omitted from FIGS. 16 and 17 along with a portion of the carriage 418 of the cross belt conveyor 408. Referring to FIG. 16, conveyor driver 1202 moves on the desired rack conveyor and goods 120 that need to be loaded (indicated by reference numeral 1602) are loaded onto cart 418 of cross belt conveyor 408. As can be seen in FIG. 17, the vertical transport 104 moves in the downward direction 1704 and the cross belt conveyor 408 rotates clockwise (to the right in FIG. 17). Once the target package 118 arrives, the cart 418 operates to drop the item 1602 into the appropriate package 118. Other items 120 can be loaded in a similar manner.
A three-dimensional management system 1800 according to another embodiment is first described with respect to FIGS. As can be seen, the system 1800 of FIG. 18 shares most of the features similar to the system 100 described above in connection with FIG. For example, the system 1800 of FIGS. 18-20 includes a rack 102 having a rack conveyor 124 on various levels 122, an entry conveyor 106, an exit conveyor 108, an elevator 110, and one or more robotic arms 416. For the sake of brevity and clarity, as well as other common features, these will not be described in detail below, but reference is made to the preceding description.
One visible difference between the system 100 of FIG. 1 and the system 1800 of FIG. 18 is that the cross belt conveyor 408 has been removed in the system 1800 of FIG. All goods 120 are loaded and unloaded by the robot arm 416. As described above, the robot arm 416 can work against multiple levels 122 without moving the robot arm vertically by the elevator 110.
Opposing racks 102 can be moved by the same robot arm 416, which enhances the flexibility of the system. Like the cross-belt conveyor 408, two or more items 120 can be loaded on the same load 118 on a simultaneous or nearly simultaneous basis.
Another difference in the system 1800 of FIG. 18 is that the transport conveyor 410 remains fixed on the ground when the load 118 is lifted into the air. FIG. 21 shows an enlarged end view of the three-dimensional management system 1800. As seen in FIGS. 20 and 21, the system 1800 includes a vertical transport mechanism or carriage 2002 having a pair of support rails 2004 spaced to engage the side or lip of the load 118. The transport machine 2002 can lift the load 118 from the transport conveyor 410. While the load 118 is being loaded on the transport conveyor 410, the vertical transport 2002 is lowered to a position where the rail 2004 does not interfere with the load 118. Once the appropriate number of loads 118 have been loaded, the vertical transport 2002 is lifted so that the rails 2004 engage the loads 118 and lift the loads 118 from the transport conveyor 410. FIG. 22 shows a perspective view of the system 1800 when the vertical transport 2002 is lifted from the transport conveyor 410. As will be appreciated, the overall weight of the vertical transport 2002 is reduced by leaving the transport conveyor 410 on the ground. This reduces energy consumption and facilitates the use of less expensive elevator systems. In addition, because of the low lifting weight, the elevator 110 can generally operate at high speeds. Once all orders for the package 118 have been filled, the vertical transport 2002 is lowered until the package 118 rests on the transport conveyor 410. The transport conveyor 410 then lowers the load 118 onto the exit conveyor 108. In other embodiments, the pallet can be used in the same manner as the luggage 118, such as for large product or case selection.
In the illustrated embodiment, the robot arm 416 is suspended from a single guide rail 414, but the vertical transport 2002 has multiple guide rails on which the various robot arms move to avoid collisions between the robot arms 416. It is conceivable that it can have. As described above, having the robot arm 416 placed in a suspended position allows the robot arm 416 to work for multiple levels while the vertical transport 2002 remains stationary. Further, such a suspended configuration is useful for a robot arm 416 that loads or unloads goods 120 from a number of loads. In one particular variation, two independent robot arms or carriers 416 are each cantilevered away from one side of the vertical transport 2002. Each robot arm 416 can move independently in the vertical direction in a path between the racks 102. A collision avoidance algorithm is executed to avoid a collision between the two robots 416. In this example, one robot arm 416 is selected from the right rack 102 and the other robot arm 416 is selected from the left rack 102. This parallel selection technique enhances selection throughput at a given vertical level 122.
The three-dimensional management system 1800 shown in FIGS. 20-22 allows the conveyor driver 1202 to move in a horizontal direction 1404 and a vertical direction 1504 to drive various rack conveyors 124. Is included. In the illustrated embodiment, the system 1800 has two conveyor drivers 1202 that can move independently of each other, but it should be understood that in other embodiments, some conveyor drivers 1202 can be used. is there.
In a typical situation, 10 to 20 bundle orders (luggage, carton or pallet) are placed in the vertical transport 2002 for execution. The carton 118 is automatically read and placed in a specific “mounting” zone to stabilize the XY coordinates of the carton 118. Once loaded, the first storage level 122 with one or more selected products or goods 120 is raised. Depending on the vertical height of the storage level 122, the robot arm 416 can select within the vertical band of the storage level 122, which allows less frequent vertical movement of the vertical transport 2002. As previously described, the independently deployable conveyor driver or power supply 1202 drives the conveyor 124 attached to each rack by mechanical, pneumatic, hydraulic, electrical and / or other connections. Is configured to do. In the illustrated embodiment, the conveyor driver 1202 mechanically drives the rack conveyor 124. The conveyor driver 1202 mechanically engages the rack conveyor 124 in a variety of ways. For example, the male connection of the conveyor driver 1202 can engage the female connection adjacent to the drive roller of the rack conveyor 124. In this example, the bevel gear rotates the drive roller in either direction. In another example, the drive roller of the conveyor driver 1202 is placed in direct contact with the drive roller of the rack conveyor 124. The conveyor driver 1202 of one embodiment pre-positions the robot arm 416 to the next selected position and mechanically engages the rack conveyor 124 for product instructions, but in other embodiments this order may be different. it can. Each conveyor driver 1202 may have a photo sensor to confirm the successful selection and indication of items on the rack conveyor 124.
During selection, the robot arm 416 can select individual items 120 from a designated storage location. As described above, the end effector 508 of the robot arm 416 can include a combination of mechanical gripping and vacuum techniques. The robot end effector 508 can simultaneously select one or more products or goods 120 from a storage location, and place individual products 120 in a package or carton 118 based on the amount required by each order. Put in. The products 120 are typically individually pulled to the rack conveyor 124 with a small spacing (2.54 cm to 5.08 cm) between the products 120, but in other embodiments the spacing between the products 120 may be eliminated. Can be made larger. The end effector 508 has a field of view control 510 that helps position the robot arm 416 for selection. For example, the goods 120 stored in the rack 102 are in a luggage or carton, and the robot vision system 510 is capable of selecting individual goods 120 from the luggage or carton. The design of the robot end effector 508 can vary from one robot selection cell to another robot selection cell based on the physical product spectrum selected. If desired, the vision system (video broadcast device) 510 can be viewed by the system supervisor at the supervisory workstation. If the error situation or robot arm 416 selects the product 120 by mistake, the supervisor can select the product 120 by semi-automatically controlling the robot end effector or correct the error situation. .
Once the item 120 is selected by the robotic arm 416, the item 120 is transported and placed in a destination “order” container 118 (eg, luggage, carton, pallet, etc.). The robotic arm 416 has the ability to place the goods 120 in a specific physical shape within the container 118 and most efficiently fills or loads the cargo or carton. The conveyor driver 1202 pulls the rack conveyor 124 at the storage location where the goods 120 are selected, and the next individual goods 120 are moved to a selected position on the rack conveyor 124. A conveyor driver 1202 and / or a photo sensor on the rack 102 can confirm the positioning of the product. The selection process is repeated at the current vertical level 122 until all items in the vertical width or band of the robot arm 416 are completed for the bundle order. The vertical transport 2002 is then raised to the vertical band of the next rack 102 that needs to be selected. The selection process is then repeated. When all selections are complete, the vertical transport 2002 is lowered to the home position (lowered entirely) and the order is released to the next robot selection module or zone. The new bundle order is then entered into the vertical transport 2002 and the complete selection cycle is repeated.
FIGS. 23-26 illustrate a special example of how goods 120 are loaded from rack 102 into luggage 118 for system 1800. Referring to FIG. 23, the robot arm 416 in this example unloads the first item 120 from the rack conveyor 124 indicated by reference numeral 2302 in FIG. 23, and the robot arm 416 receives the stored luggage 118 indicated by reference numeral 2304. Is in the process of inserting the first product into Also, in the illustrated embodiment, the system 1800 includes two conveyor drivers 1202, a first conveyor driver 2306 and a second conveyor driver 2308. Once the first item 120 is unloaded from the rack conveyor 2302, the first conveyor driver 2306 moves up to the empty rack conveyor 2302 to pull the next item 120 to the position shown in FIG. At the same time, the robot arm 416 puts the product 120 into the stored luggage 2304. It is understood that the robotic arm 416 ensures that the merchandise 120 is safely placed in the luggage 2304 so as to avoid any damage caused by other loading techniques, such as by dropping the merchandise 120. Should be. The independent movement of the first conveyor driver 2306 and the second conveyor driver 2308 of FIG. 24 requires the next or second (indicated by reference numeral 2402) to be pulled before the item 120 is removed. The rack conveyor 124 starts to move. Referring to FIG. 25, the second conveyor driver 2308 continues to move to the second rack conveyor 2402 and at the same time, the second conveyor driver 2308 causes the robot arm 416 to remove the product 120 from the second rack conveyor 2402. After collecting the merchandise 120, the robot arm 416 moves along the guide rail 414 to the next load 118 indicated by reference numeral 2602 in FIG. The robot arm 416 puts the product 120 into the load 2602, and at the same time, the second conveyor driver 2308 pulls the second rack conveyor 2402, and the next product 120 becomes available. The above process continues until the required order is executed. It should be understood that the above description is merely one example of how goods 120 can be loaded into a package 118 for system 1800. It should be noted that the product 120 can be loaded or unloaded in other ways.
FIG. 27 shows a top view of a three-dimensional storage system 270 according to yet another embodiment. The system 2700 of FIG. 27 is configured in the same manner as described above, except that the entry conveyor 2702 and the exit conveyor 2704 are located on the same side of the rack 102. This special conveyor arrangement can be used in a variety of situations. For example, the conveyor arrangement of the system 2700 of FIG. 27 can be used when space is an issue and / or when a linear conveyor is undesirable or impractical. To prevent interference between the conveyors, the entrance conveyor 2702 and the exit conveyor 2704 are spaced apart from each other in the vertical direction, as shown in FIG. As shown, the entrance conveyor 2702 is disposed below the exit conveyor 2704 near the entrance of the rack 102. In this example, the transport conveyor 410 can be raised to unload the load 418 on the exit conveyor 2704. Nevertheless, it should be understood that the conveyor may be arranged differently in other embodiments.
With respect to the above system, the goods 120 can be replenished to the rack 102 in various ways, such as manually by a human operator, automatically, or a combination thereof. Referring to FIG. 1, the replenishment station 112 can be used to manually replenish goods 120 on the rack 102. Replenishment can occur in various ways, such as using a first-in first-out (FIFO) technique or a last-in first-out (LIFO) technique. FIG. 29 is an enlarged view of the refill station 112 first shown in FIG. Although refill station 112 is shown in connection with the system of FIG. 1, it is understood that refill station 112 can be incorporated into other systems, such as the systems shown in FIGS. Should.
An example of a manual first-in first-out replenishment sequence utilizing the refill station 112 is described with reference to FIG. It should be understood that this technique with a refill station can be used in other systems. In this example, 12 to 20 bundles (batch) of refill cartons 2902 (according to a particular SKU) are placed on the shelf 2904 of the refill station 112. As shown in FIG. 29, the replenishment station 112 is disposed outside the rack 102. During refilling, the refilling station 112 moves automatically (or manually) to each warehouse location. The replenishment operator 2906 removes individual items 120 from the designated carton and places the items on the replenishment introduction belt conveyor 2908 (within the replenishment station 112). The required space or clearance of the goods 120 on the introduction belt conveyor 2908 is indicated to the operator by proof. In this example, a conveyor driver 1202 attached to the refill station 112 engages each rack conveyor 124 and pulls the refill goods 120 onto the rack conveyor 124. By having a conveyor driver 1202 at the refill station 112, the selection process can proceed in parallel with the refill process (except for the specific conveyor path being refilled). In other variations, it is envisioned that the same conveyor driver 1202 used to pull the conveyor for the selection process can be used for the refill cycle. When the replenishment introduction belt conveyor 2908 is in view of the goods 120 in the replenishment station 112, the replenishment operator 2906 presses the progress button and the replenishment introduction belt conveyor 2908 proceeds to place the goods 120 on the rack conveyor 124. . This process is repeated at the same storage location until it is filled with goods 120 or the rack conveyor 124 is finished based on a suitable replenishment inventory algorithm. The replenishment station 112 then moves to the next replenishment warehouse location and the above process is repeated. When all the replenishment items 120 have been smeared, the refill station 112 returns to the home position, disposes of the empty corrugated carton, and refills a new replenishment carton for the product 120 that needs to be smeared. The complete refill cycle is then repeated. It should be understood that the refill station 112 of other embodiments is automated to eliminate the need for a human operator.
An automated replenishment technique using a last-in first-out sequence is described in connection with FIGS. With this technique, the replenishment cartons 118 of goods 120 can be mixed in a bundle of selected orders. In other words, the replenishment process is sandwiched between selection processes. Typically, after each vertical movement of the vertical transport 2002, the robot arm 416 in turn selects individual items 120 from the replenishing carton 118 and places the items on the rack conveyor 124. Once all replenishment is complete, the robot arm 416 proceeds through a selection cycle for the order to be executed. This replenishing technique allows the use of the same robot for both selection and replenishment and is fully automated.
With the above system, selection (or replenishment) of up to 4 or 5 times the degree of selection of the human operator is achieved with almost 100% selection accuracy. Operating costs can be reduced to eliminate human selection. Unlike conventional systems, the robot 416 places the item 120 rather than throwing it into the luggage or carton 118, so that fragile items can be processed without damage. In addition, human operators are not exposed to unwanted environments such as coolers and freezers. The automated system described above also provides a robust throughput capability for synchronized upstream and downstream operations, which can maintain high selected throughput for 24 hours a day, 7 days a week. The system can additionally select individual products in a wide variety of units such as individual units (sometimes referred to as “eaches”), internal packs, and / or full cases. Similarly, the storage rack (or matrix) 102 can be set in various size units such as individual units, internal packs, full cases, and the like.
While the invention has been illustrated and described in detail in the drawings and foregoing description, it is to be understood that the invention has been considered by way of example and not restrictive; only the preferred embodiments are shown and described; It will be understood that all variations, equivalents and modifications that fall within the spirit of the defined invention are desired to be protected. All publications, patents, and patent applications cited in this specification are shown to be individually and individually incorporated by reference, and are fully incorporated herein by reference. As incorporated herein by reference.
At least two storage racks arranged to face each other, each storage rack including two or more levels having one or more rack conveyors on which goods are stored;
A vertical transport disposed between the storage racks, the vertical transport including one or more robot arms secured to the vertical transport to move vertically together with the vertical transport; ,
A storage system comprising: an elevator configured to move the vertical transport vertically between the levels so that the robot arm can load the goods from the rack conveyor onto the vertical transport.
The vertical transport has one or more guide rails on which the robot arm is suspended,
The storage system, wherein the robotic arm is configured to move along the guide rail to load goods along the length of the vertical transport.
The storage system further comprising a conveyor driver configured to move to drive two or more of the rack conveyors without being driven.
The storage system according to claim 3,
A storage system, wherein the conveyor driver is configured to move horizontally along one of the levels.
The conveyor driver is configured to move vertically between levels to tow different levels of rack conveyors, and the robot arm moves from different levels of the rack conveyors while the vertical transport remains fixed vertically. A storage system on which the goods can be loaded.
A storage system in which the conveyor driver is fixed to the vertical transport.
A storage system in which the conveyor driver is fixed to one of the racks.
A storage system in which the vertical space between the levels of the rack becomes narrower as the level increases.
The vertical transport includes a cross belt conveyor configured to load the goods from the rack conveyor onto the vertical transport;
The cross belt conveyor is fixed to the vertical transport machine and moves vertically with the vertical transport machine.
A storage system further comprising a transport conveyor configured to unload the goods from the vertical transport.
A storage system, wherein the transport conveyor is fixed to the vertical transport and moves vertically together with the vertical transport.
The vertical transport includes two or more rails spaced apart to hold one or more containers on which the goods are loaded;
A storage system, wherein the vertical transport is configured to lift the container from the transport conveyor during loading.
An entry conveyor configured to load containers on the vertical transport;
A storage system further comprising an exit conveyor configured to unload the container from the vertical transport.
The storage system according to claim 13,
The storage system, wherein the entrance conveyor and the exit conveyor are located at the same end of the vertical transport.
A storage system further comprising a replenishment station configured to move vertically and horizontally along at least one of the racks to replenish goods on the rack conveyor.
A storage rack having two or more rack conveyors in which goods are stored;
A storage system comprising a conveyor driver configured to move along the storage rack to drive the two or more rack conveyors.
The storage system according to claim 16, wherein
A vertical transport machine disposed along the storage rack configured to receive the goods from the rack conveyor;
A storage system further comprising an elevator configured to move the vertical transport vertically.
The storage system according to claim 17,
The vertical transportation machine includes a storage system including one or more robot arms for loading the commodity from the storage rack onto the vertical transportation machine.
A cross belt conveyor configured to load the commodity from the rack conveyor onto the vertical transport machine;
The storage system, wherein the conveyor driver is configured to transmit power from the cross belt conveyor to the rack conveyor.
The storage system according to claim 20, wherein
A storage system wherein the conveyor driver is configured to move horizontally along the vertical transport.
A storage system, wherein the conveyor driver is configured to move horizontally along the storage rack.
The storage system according to claim 22,
A guide rail fixed perpendicular to the rack;
A storage system, wherein the conveyor driver is configured to move along the guide rail.
A storage system, wherein the conveyor driver is configured to move vertically along the storage rack.
The storage system according to claim 25,
A guide rail to which the conveyor driver is fixed;
A storage system further comprising a drive elevator configured to move the guide rail vertically along the storage rack.
The conveyor driver is
A drive belt configured to frictionally engage the two or more rack conveyors;
And a drive motor configured to drive the drive belt to drive the two or more rack conveyors.
A storage system further comprising drive means for driving the two or more rack conveyors, the drive means including the conveyor driver.
A vertical transport that is disposed between the storage racks and includes a cross belt conveyor configured to load the goods from the rack conveyor onto the vertical transport;
A storage system comprising an elevator configured to move the vertical transport vertically between the levels.
The storage system of claim 29,
A storage system wherein the cross belt conveyor is annular around the vertical transport to load the goods simultaneously from the at least two storage racks.
Raising a vertical transport vertically along a storage rack having a first level with a first rack conveyor to a first vertical position;
Loading one or more first items from the first rack conveyor at the first level onto the vertical transport with a robot arm fixed to the vertical transport;
While the vertical transport machine remains in the first vertical position, the robot transports one or more second products from a second rack conveyor disposed at a second level different from the first level by the robot arm. Loading with a method.
The method further comprises loading one or more third items from the third rack conveyor at the first level on the vertical transport with a cross belt conveyor.
Driving the first rack conveyor with a conveyor driver;
Moving the conveyor driver to the second or third rack conveyor;
Driving the second or third rack conveyor with the conveyor driver.
The method further comprising rearranging the first and second items between the first rack conveyor and the second rack conveyor.
Driving the first conveyor with a conveyor driver to pull the first product on the first conveyor to the first loading position;
Moving the conveyor driver to a second conveyor;
Driving the second conveyor with the conveyor driver to pull a second product on the second conveyor to a second loading position.
JP2009547342A 2007-01-25 2008-01-08 3D automation selection module Pending JP2010516593A (en)
US11/626,869 US8276739B2 (en) 2007-01-25 2007-01-25 Three-dimensional automated pick module
PCT/US2008/050501 WO2008091733A2 (en) 2007-01-25 2008-01-08 Three-dimensional automated pick module
JP2010516593A true JP2010516593A (en) 2010-05-20
ID=39645097
JP2009547342A Pending JP2010516593A (en) 2007-01-25 2008-01-08 3D automation selection module
US (1) US8276739B2 (en)
EP (1) EP2125579A4 (en)
JP (1) JP2010516593A (en)
CN (1) CN101641270B (en)
BR (1) BRPI0807999B1 (en)
CA (1) CA2676519C (en)
MX (1) MX2009007967A (en)
RU (1) RU2009131923A (en)
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2008-01-08 CA CA2676519A patent/CA2676519C/en active Active
2008-01-08 EP EP08713646A patent/EP2125579A4/en not_active Withdrawn
2008-01-08 JP JP2009547342A patent/JP2010516593A/en active Pending
2008-01-08 WO PCT/US2008/050501 patent/WO2008091733A2/en active Application Filing
2008-01-08 CN CN 200880008777 patent/CN101641270B/en active IP Right Grant
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