Patent Publication Number: US-10773837-B2

Title: Solid state disk packaging line

Description:
RELATED APPLICATIONS 
     This application claims the benefit of priority to Chinese Patent Application No. 201810327190.6 filed on Apr. 12, 2018, which is hereby incorporated by reference in its entirety. 
     FIELD OF THE INVENTION 
     The present invention relates to a field of a packaging production line, and more particularly to a solid state disk packaging line. 
     BACKGROUND OF THE INVENTION 
     Solid state disks are quickly accepted by users and gradually replace mechanical hard disks due to compact size and high reading speed. Solid state disks are more resistant than the mechanical hard disks, light collisions do not cause data loss, and solid state disk has a longer service life than the mechanical hard disk, however, on the one hand, solid state disk is more expensive than the mechanical hard disk; on the other hand, once solid state disk is damaged, all data will be lost and cannot be retrieved. Thus, the solid state disks need to be securely packaged for shipping. 
     Since the solid state disks to be packaged have a variety of different specifications, it is necessary to confirm solid state disk specifications before packaging so that the solid state disks are matched with the product labels outside the packaging box. 
     Thus, it is necessary to provide an automatic solid state disk packaging line in order to avoid the problem of poor production efficiency, production being damaged, as well as product labels lacking agreement to solid state disk caused by manual packaging. 
     SUMMARY OF THE INVENTION 
     One objective of the present invention is to provide an automatic solid state disk packaging line, so as to avoid problems caused by manual packaging in the prior art, including solid state disk damage, poor production efficiency, and product labels mismatching with solid state disks. 
     To achieve the above objective, a solid state disk packaging line, for packaging solid state disks, includes a stacking tray conveying system, a packaging system, a packaging box conveying system, and a packaging box packaging system. The packaging system includes a packaging box loading device, a sealing bag loading device, and a packaging machine which are arranged linearly. Two sides of the packaging system, where is provided with the packaging machine, are connected with the stacking tray conveying system and the packaging box conveying system respectively. The packaging machine is adapted for receiving a stacking tray loaded with solid state disks and conveyed by the stacking tray conveying system, and loads the stacking tray into a packaging box, and then transfers the packaging box to the packaging box packaging system via the packaging box conveying system. And the packaging box with the stacking trays loaded therein is sealed by the packaging box packaging system. 
     In comparison with the prior art, the solid state disk packaging line of the present invention works by cooperating with the stacking tray conveying system, the packaging box conveying system, and the packaging box packaging system, thereby sealing the solid state disks into a packaging box. The solid state disk packaging line is highly automated without manual operation, which reduces the labor. In addition, products with different specifications can be packaged at the same time to significantly increase production efficiency. Meanwhile, the solid state disk packaging line can avoid possible damages to the solid state disk brought by the manual packaging. 
     Preferably, the stacking tray conveying system includes a tray loading device, a stacking tray loading device, a conveying device, and a tray unloading device which are arranged linearly, and further includes a plurality of trays adapted for receiving the stacking tray and moving among the tray loading device, the stacking tray loading device, the conveying device, and the tray unloading device so as to load the stacking tray. 
     Preferably, the tray is provided with a tray fixed identifier, and the stacking tray conveying system further includes an identifier placer which is adapted for placing a stacking tray moving identifier on the tray and tracing the stacking tray information by identifying the tray fixed identifier and the corresponding stacking tray moving identifier. It can be understood that a limited number of trays cyclically moves and are reused. In order to uniquely and accurately identify the stacking tray with the solid state disks, another stacking tray moving identifier corresponding to the stacking tray is provided. However, when the tray is loaded with the stacking tray, the stacking tray moving identifier may be shielded and unidentifiable. Therefore, by connecting the tray fixed identifier with the stacking tray moving identifier, the corresponding stacking tray information can be obtained by scanning the tray fixed identifier while the stacking tray is transferred. 
     Preferably, the solid state disk packaging line further includes a label printing mechanism for printing a product label. The product label is attached to an outside of the packaging box, and the label printing mechanism communicates with product information base and acquires the stacking tray information so as to print out the product label. 
     Specifically, the conveying device includes an upper conveying passage and a lower conveying passage. The tray loading device and the tray unloading device respectively drive the tray to move between the upper conveying passage and the lower conveying passage to convey the tray circularly. Thus, the stacking tray loading device and the stacking tray unloading device at two ends of the conveying device can drive the tray to move between the upper and lower conveying passage, so that the tray can move circularly in the conveying device. The stacking tray is loaded by the upper conveying passage, and the tray is returned by the lower conveying passage to transfer the stacking tray to the packaging system. 
     Preferably, the packaging machine includes a packaging box conveying mechanism, a labeling mechanism, a partition loading mechanism, a robot mechanism, a desiccant loading mechanism, and a sealing bag heat sealing mechanism, and the packaging machine has a packaging position. A conveying track of the packaging box conveying mechanism passes through the packaging position and the sealing bag heat sealing mechanism. Loading positions of the partition loading mechanism, the robot mechanism and the desiccant loading mechanism are located above the packaging position. The robot mechanism is configured to transfer the stacking tray to the packaging box located at the loading position, and the partition loading mechanism and the desiccant loading mechanism respectively place a partition and desiccant in the packaging box. The sealing bag is heat sealed through the sealing bag heat sealing mechanism and then enters the packaging box conveying system. 
     Specifically, the partition loading mechanism, the desiccant loading mechanism, and the sealing bag heat sealing mechanism are all located above the packaging machine, and a conveying track of the packaging box conveying mechanism is located beneath the partition loading mechanism, the desiccant loading mechanism, and the sealing bag heat sealing mechanism. 
     Specifically, the desiccant loading mechanism includes a vibrating loading tray, and a desiccant conveying belt connecting the vibrating loading tray and the packaging position. 
     Preferably, the stacking tray conveying system and the packaging system are respectively provided with a robot for receiving the stacking tray, and the robot includes a lifting finger for lifting the stacking tray and a pushing finger for pressing down the stacking tray. 
     Preferably, the packaging box packaging system includes a scanning device, a sealing device, a weighing device, and a sorting mechanism which are arranged in turn. 
     Preferably, the stacking tray conveying system and the packaging box conveying system are arranged linearly, and the packaging system and the packaging box packaging system are disposed perpendicularly to the stacking tray conveying system and the packaging box conveying system, and the packaging system and the packaging box packaging system are located on a same side of the stacking tray conveying system and the packaging box conveying system. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings facilitate an understanding of the various embodiments of this invention. In such drawings: 
         FIG. 1  is a schematic diagram showing a packaging process of a solid state disk according to the present invention; 
         FIG. 2  is a perspective view of a solid state disk packaging line according to the present invention; 
         FIG. 3  is a perspective view of an internal structure of the solid state disk packaging line after the outer casing is removed according to the present invention; 
         FIG. 4  is a perspective view of a stacking tray conveying system according to the present invention; 
         FIG. 5  is a perspective view of a stacking tray loading device according to the present invention; 
         FIG. 6  is a perspective view of an internal structure of the stacking tray loading device according to the present invention; 
         FIG. 7  is a perspective view of a conveying device according to the present invention; 
         FIG. 8  is a perspective view of a tray unloading device according to the present invention; 
         FIG. 9  is a perspective view of a packaging system according to the present invention; 
         FIG. 10  is a perspective view of a packaging machine according to the present invention; 
         FIG. 11  is a perspective view of an internal structure of the packaging machine according to the present invention; 
         FIG. 12  is a top view of the internal structure of the packaging machine according to the present invention; 
         FIG. 13  is a perspective view of a robot mechanism according to the present invention; 
         FIG. 14  is a perspective view of a packaging box positioning mechanism according to the present invention; 
         FIG. 15  is a perspective view of a sealing bag flanging mechanism according to the present invention; and 
         FIG. 16  is a perspective view of a sealing bag heat sealing mechanism according to the present invention. 
     
    
    
     DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS 
     A distinct and full description of the technical solution of the present invention will follow by combining with the accompanying drawings. 
     Referring to  FIG. 1 , the packaging process of solid state disks includes: unfolding a packaging box C; inserting a sealing bag into the packaging box C; marking an identification code on an outer side of the packaging box C; putting a lower partition in the sealing bag; putting the stacking tray P into the sealing bag; putting an upper partition and desiccant in the sealing bag; sealing the sealing bag; and packaging the packaging box C. 
     A solid state disk packaging line is used for packaging solid state disks, which includes the whole packaging steps above mentioned so as to avoid quality problem caused by manual operation, and at the same time improving production efficiency. 
     As shown in  FIG. 2 , a solid state disk packaging line includes a stacking tray conveying system  100 , a packaging system  200 , a packaging box conveying system  300 , and a packaging box packaging system  400 . The packaging system  200  includes a packaging box loading device  210 , a sealing bag loading device  220 , and a packaging machine  230  which are arranged linearly. Two sides of the packaging system  200 , where is provided with the packaging machine  230 , are connected with the stacking tray conveying system  100  and the packaging box conveying system  300  respectively. The packaging machine  230  is adapted for receiving a stacking tray P with solid state disks and conveyed by the stacking tray conveying system  100 , loads the stacking tray P into the packaging box C, and then transfers the packaging box C to the packaging box packaging system  400  via the packaging box conveying system  300 . And the packaging box C with the stacking trays P loaded therein is sealed by the packaging box packaging system  400 . By combination with  FIGS. 3-16 , more details are described as follows. 
     As shown in  FIGS. 2 and 3 , the stacking tray conveying system  100  and the packaging box conveying system  300  are arranged linearly, and the packaging system  200  and the packaging box packaging system  400  are disposed perpendicularly to the stacking tray conveying system  100  and the packaging box conveying system  300 . The packaging system  200  and the packaging box packaging system  400  are located on the same side of the stacking tray conveying system  100  and the packaging box conveying system  300 . Overall arrangement of the solid state disk packaging line is similar to an “F” shape. The stacking tray P to be loaded, the packaging box C, the sealing bag, and the packaged packaging box C to be unloaded, are respectively located at each end of the “F” shape, so it is convenient to load the tray and easy to operate. 
     Further, the solid state disk packaging line further includes a solid state disk bagging system (not shown) which can put a single solid state disk into the sealing bag and put it into the stacking tray to obtain a stacking tray P for packaging. The solid state disk bagging system can be disposed at the other end of the stacking tray conveying system  100 , so that overall arrangement of the solid state disk packaging line is similar to an “E” shape. 
     It can be understood, the solid state disks in each stacking tray have the same specifications, but the solid state disks in different stacking trays have various specifications. Therefore, before packaging the stacking tray, it is necessary to confirm the specification of the solid state disk loaded, and monitor the corresponding stacking tray at any time to ensure that the product label attached to the outside of the packaging box C is corresponding to the solid state disk loaded. 
     For the stacking tray conveying system  100 , as shown in  FIGS. 4-8 , more details are described as follows. 
     As shown in  FIG. 4 , the stacking tray conveying system  100  includes a tray loading device  110 , a stacking tray loading device  120 , a conveying device  130 , and a tray unloading device  140  which are arranged linearly, and further includes a plurality of trays  150  adapted for receiving the stacking tray P and moving among the tray loading device  110 , the stacking tray loading device  120 , the conveying device  130 , and the tray unloading device  140  so as to load the stacking tray P. 
     The tray  150  is provided to ensure that the stack tray P is transferred by the stacking tray conveying system  100 . Specifically, as shown in  FIG. 6 , a plurality of flat trays  150  carry the stacking tray P and convey it through the stacking tray loading device  120 , the conveying device  130 , and the tray unloading device  140  so as to load the stacking tray P. Further, a plurality of positioning blocks  151  are arranged on an upper side of the tray  150 . When the stacking tray P is placed on the upper side of the tray  150 , a plurality of positioning blocks  151  are able to limit the stacking tray P. The tray  150  is further provided with a positioning hole  152  and cooperates with a positioning pin on the stacking tray conveying system  100  by the positioning hole  152  to further limit the tray  150  stably. 
     Specifically, as shown in  FIG. 7 , the conveying device  130  includes an upper conveying passage  131  and a lower conveying passage  132 . As shown in  FIG. 4 , the tray loading device  110  and the tray unloading device  140  located on two ends of the stacking tray conveying system  100  respectively drive the tray  150  to move between the upper conveying passage  131  and the lower conveying passage  132  to convey the tray  150  circularly. After the tray  150  at the stacking tray loading device  120  receives the stacking tray P, the tray  150  with the stacking tray P is moved along the upper conveying passage  131  to the tray unloading device  140  driven by the conveying device  130 ; after the stacking tray P is loaded to the packaging system  200 , the empty tray  150  is moved downward along the lower conveying passage  132  to the tray loading machine  110  driven by the tray unloading device  140 ; and the empty tray  150  is lifted upwards by the tray loading machine  110  and returns to the stacking tray loading device  120 , and the empty tray  150  is flush with the upper conveying passage  131  to receive the stacking tray P. 
     In this embodiment, as shown in  FIG. 7 , the conveying device  130  is specifically a roller conveying device, and the flat tray  150  is provided for smoothly transferring the stacking tray P. As shown in  FIG. 8 , the flat tray  150  cooperates with the tray unloading device  140  having a vertical drive mechanism  141 , which drives the tray  150  to move vertically to a position flush with the lower conveying passage  132  to make the tray  150  to move circularly. 
     Preferably, referring to  FIGS. 5 and 6 , the tray  150  is provided with a tray fixed identifier, and the stacking tray conveying system  100  further includes an identifier placer which is adapted for placing a stacking tray moving identifier on the tray  150  and tracing the stacking tray information by identifying the tray fixed identifier and the corresponding stacking tray moving identifier. Specifically, a tray fixed identifier (not shown) is fixed to a bottom of each tray  150  and the tray fixed identifier is in one-to-one correspondence with the tray  150 . An upper side of each tray  150  is provided with a label placement position  153 , and the stacking tray loading device  120  is further provided with the identifier placer  160 . The identifier placer  160  places the stacking tray moving indicator onto the label placement position  153  on the upper side of the tray  150  when the tray  150  is moved to the front of the identifier placer  160  and waits to be loaded. 
     It can be understood that the trays  150  are cyclically moved to reuse in the packaging line. By connecting the tray fixed identifier with the stacking tray moving identifier, while the stacking tray P is transferred in the stacking tray conveying system  100 , the tray fixed identifier is read in time to obtain the stacking tray moving identifier and accurately identify the corresponding stacking tray P, and it is convenient to trace and identify the stacking tray P information. When the stacking tray P leaves the tray (namely leaves the stacking tray conveying system  100  and reaches to the packaging system  200 ), the tray fixed identifier and the stacking tray moving identifier are disconnected. Then the tray fixed identifier follows the tray, the tray returns to carry another stacking tray P, and the tray fixed identifier is again bundled with its corresponding stacking tray moving identifier. For the disconnected stacking tray moving identifier, when the corresponding stacking tray P leaves the stacking tray conveying system  100  to the packaging system  200 , the stacking tray information will be automatically transferred to the packaging system  200  so that the stacking tray P is always monitored. Specifically, the identifier placer  160  is disposed outside the loading position of the stacking tray loading device  120 , and sucking assembly of the identifier placer  160  can remove the stacking tray moving identifier at the label placement position  153 , and place the stacking tray moving identifier corresponding to the next stacking tray P at the label placement position  153 . Preferably, the identifier placer  160  is able to print the stacking tray moving identifier; the stacking tray moving identifier is printed, removed by the sucking assembly, and placed in the label placement position  153 . In this embodiment, the stacking tray moving identifier and the tray fixed identifier are barcodes. In other embodiments, the stacking tray moving identifier and the tray fixed identifier may also be two-dimensional codes or other identification marks. 
     Referring to  FIG. 5  and  FIG. 6 , the stacking tray loading device  120  is also provided with a pick-place robot  170 , which is used for grasping the stacking tray P from the solid state disk bagging system or other mechanism and placing it at the loading position of the stacking tray loading device  120 . The pick-place robot  170  includes a robot  172  for gripping the stacking tray P and a drive mechanism  171  for driving the robot to move. In order to ensure that the stacked stacking tray P does not shift while transferred: the robot  172  includes a lifting finger  172   a  for lifting the stacking tray P and a pushing finger  172   b  for pressing the stacking tray P downward. The pushing finger  172   b  cooperates with the lifting finger  172   a  to position stably the stacking tray P. In this embodiment, the pushing finger  172   b  is specifically a pin driven by an elastic member. 
     For the packaging system  200 , by combination with  FIGS. 9-16 , more details are described as follows. 
     The packaging system  200  includes a packaging box loading device  210 , a sealing bag loading device  220 , and a packaging machine  230  which are arranged linearly. Two sides of the packaging system  200 , where is provided with the packaging machine  230 , are connected with the stacking tray conveying system  100  and the packaging box conveying system  300  respectively. The packaging machine  230  is adapted for receiving a stacking tray P loaded with solid state disks and conveyed by the stacking tray conveying system  100 , loading the stacking tray P into a packaging box C, and then transferring the packaging box C to the packaging box packaging system  400  via the packaging box conveying system  300 . 
     It can be understood, the packaging box loading device  210  unfolds the packaging box C, and the sealing bag loading machine  220  wraps the sealing bag into the packaging box C and folds the sealing bag mouth outside the packaging box C mouth. This structure is relatively simple and will not be described in detail here. The structure of the packaging machine  230  will be described in detail below. 
     As shown in  FIGS. 10-12 , the packaging machine  230  includes a robot mechanism  231 , a packaging box conveying mechanism  232 , a partition loading mechanism  233 , a desiccant loading mechanism  234 , a sealing bag heat sealing mechanism  235 , an electric control box  236 , and a labeling mechanism (not shown), and the packaging machine  230  has a packaging position  230   c . A conveying track of the packaging box conveying mechanism  232  passes through the packaging position  230   c  and the sealing bag heat sealing mechanism  235 . Loading positions of the partition loading mechanism  233  and the desiccant loading mechanism  234  are located above the packaging position  230   c . The robot mechanism  231  is configured to transfer the stacking tray P to the packaging box C located at the loading position, and the partition loading mechanism  233  and the desiccant loading mechanism  234  respectively place a partition and desiccant in the packaging box C. The sealing bag is heat sealed by the sealing bag heat sealing mechanism  235  and then enters the packaging box conveying system  300 . 
     In order to identify and position the stacking tray P: the solid state disk packaging line further includes a label printing mechanism (not shown) for printing a product label. The product label is attached to outside of the packaging box C, and the label printing mechanism communicates with product information base and acquires the stacking tray information so as to print out the product label. The label printing mechanism may be disposed near the packaging position  230   c , and the labeling mechanism (not shown) which attaches the product label to outside of the packaging box C is disposed at the packaging position  230   c . After the packaging box C loaded with the stacking tray P is loaded to the packaging position  230   c  by the robot mechanism  231 , the label printing mechanism cooperating with the labeling mechanism attaches the corresponding product label to the outer wall of the packaging box C to identify the stacking tray P seamlessly. Subsequently, although the stacking tray P is loaded in the packaging box C, the information of the solid state disk loaded inside the stacking tray P can be known by scanning the product label on the outer wall of the packaging box C. In this embodiment, the product label printed by the label printing mechanism is also a barcode. Specifically, the packaging machine  230  has a frame  237 . The front or rear side of one end of the frame  237  is connected to the tray unloading device  140  to receive the stacking tray P, and the rear or front side is connected to the packaging box conveying system  300  for transferring the packaging box C processed by the packaging machine  230  to the packaging box packaging system  400 . The other end of the frame  237  away from the tray unloading device  140  and the packaging machine  230  is connected with the sealing bag loading device  220  to receive the packaging box C with the sealing bag. 
     The partition loading mechanism  233 , the desiccant loading mechanism  234 , and the sealing bag heat sealing mechanism  235  are respectively disposed on the upper side of the frame  237 . In order to put the partition and the desiccant in the packaging box C easily via the partition loading mechanism  233  and the desiccant loading mechanism  234 , the packaging position can be set to be shorter and lower than the partition loading mechanism  233  and the desiccant loading mechanism  234 . The electric control box  236  is disposed on the outer side of the frame  237 . 
     Preferably, in this embodiment, in order to ensure that the partition loading mechanism  233 , the desiccant loading mechanism  234 , and the sealing bag heat sealing mechanism  235  are placed in the limited space of the frame  237 , the transfer passage of the packaging box conveying mechanism  232  is not limited to horizontal, but can also be in the vertical direction. Specifically, in this embodiment, the partition loading mechanism  233  and the desiccant loading mechanism  234  are disposed along one long side of the frame  237 , and the sealing bag heat sealing mechanism  235  and the packaging position  230   c  are located at the other long side of the frame  237 . The packaging box conveying mechanism  232  with the sealing bag passes through the sealing bag heat sealing mechanism  235  from below to the packaging position  230   c ; after the partition, the stacking tray P, the partition and the desiccant are sequentially placed in the packaging box C, the packaging box C is moved up to the right driven by packaging box conveying mechanism  232  to the sealing bag heat sealing mechanism  235 , so that the sealing bag heat sealing mechanism  235  seals the sealing bag; then the packaging box C is moved to the other long side of the frame  237  driven by the packaging box conveying mechanism  232 , and passes through the partition loading mechanism  233  and the desiccant loading mechanism  234  so as to transfer the packaging box C to the packaging box conveying system  300 . 
     More specifically, referring to  FIGS. 11 and 12 , a short side of the frame  237  faces the stacking tray conveying system  100  and the packaging box conveying system  300 . In the short sides of the frame  237 , a short side adjacent to the stacking tray conveying system  100  is provided with a packaging position  230   c , and a short side close to the packaging box conveying system  300  is provided with a partition receiving position  230   d . The partition loading mechanism  233  is disposed above the partition receiving position  230   d . The sucking assembly of the partition loading mechanism  233  can move the partition at the partition receiving position  230   d  to the packaging box C at the packaging position  230   c  to load the partition. 
     Referring to  FIG. 11  and  FIG. 12 , the desiccant loading mechanism  234  is disposed along the long side of the frame  237  with respect to the partition receiving position  230   d  and the partition loading mechanism  233 . The desiccant loading mechanism  234  includes a vibrating loading tray  234   a  and the desiccant conveying belt  234   b  connected to the vibrating loading tray  234   a  and the packaging position  230   c . The vibrating loading tray  234   a  is far from the packaging position  230   c , and the desiccant in the vibrating loading tray  234   a  is passed through the desiccant conveying belt  234   b  and transferred to the packaging position  230   c . As shown in  FIG. 10 , a partition loading mouth  230   a  is formed in the corresponding partition receiving position  230   d  of the outer casing of the packaging box conveying system  230 . The stacked partitions can be placed into the partition receiving position  230   d  from the partition loading mouth  230   a . The desiccant loading mechanism  234  of the outer casing of the packaging box conveying system  230  is further provided with a desiccant loading mouth  230   b , and a plurality of small bag desiccants are placed in the desiccant loading mechanism  234  via the desiccant loading mouth  230   b.    
     As shown in  FIG. 13 , the robot mechanism  231  is disposed on one side of the packaging position  230   c , and the robot mechanism  231  also includes a robot  231   b  for gripping the stacking tray P and a drive mechanism  231   a  for driving the robot to move between the tray unloading device  140  and the packaging position  230   c . Specifically, the robot  231   b  includes a lifting finger  231   b   1  for lifting the stacking tray P and a pushing finger  231   b   2  for pressing down the stacking tray P, and the pushing finger  231   b   2  cooperates with the lifting finger  231   b   1  to position stably the stacking tray P. It can be understood, since the position of the packaging position  230   c  is low, in order to smoothly transfer the stacking tray P into the packaging box C, the vertical track stroke of the robot mechanism  231  can be set longer. Thus, the difference between the robot  231   b  and the robot  172  is that the pushing finger  231   b   2  of the robot  231   b  is specifically an elastic abutment block driven by the cylinder. 
     Further, as shown in  FIG. 14 , an adjustment unit  238  is disposed at the packaging position  230   c , and the adjustment unit  238  adjusts the packaging box C by the adjustment members  238   a  on the left and right sides, so that the packaging box C is placed in a position facing the stacking tray P and the robot mechanism  231 . Further, the adjustment unit  238  further includes a vertical drive member  238   b , by which the vertical drive member drives the packaging box C to vertically move to receive the stacking tray P. The vertical drive member  238   b  can also lift vertically the packaging box C to transfer the packaging box C to the sealing bag heat sealing mechanism  235  for sealing. 
     As shown in  FIG. 1 , in order to heat-seal the sealing bag that is bagged in the packaging box C, firstly the sealing bag, which is bagged in the outer edge of the packaging box C, is stroked up before sealing the sealing bag, and then sealed. Referring to  FIGS. 11-12 and 16 , a sealing bag flanging mechanism  239  is also disposed between the packaging position  230   c  and the sealing bag heat sealing mechanism  235 . As shown in  FIG. 15 , the sealing bag flanging mechanism  239  includes a plurality of flexible scrapers  239   a . When the packaging box C moves to the sealing bag flanging mechanism  239 , a plurality of flexible scrapers  239   a  move from bottom to top around the packaging box C for stroking up the sealing bag mouth. The sealing bag flanging mechanism  239  further includes a sealing bag mouth supporting mechanism  239   b . The sealing bag mouth supporting mechanism  239   b  extends over the mouth of the packaging box C to support and initially sort out the sealing bag mouth so that the sealing bag mouth can be moved to the sealing bag heat sealing mechanism  235  in an upright state. 
     As shown in  FIG. 16 , the sealing bag heat sealing mechanism  235  includes a positioning mechanism  235   a  for stretching the sealing bag mouth in the longitudinal direction, a vacuum suction nozzle  235   b  for evacuating the sealing bag, and a welding rod  235   c . Concretely, the positioning mechanism  235   a  includes two positioning plates  235   a   1  synchronously driven by the power member. When the packaging box C, the sealing bag mouth of which keeps upright, is moved to the sealing bag heat sealing mechanism  235 , the positioning device  235   a  extends into the sealing bag mouth and drives the two positioning plates  235   a   1  to move outward along the long side to stretch the sealing bag mouth. After the vacuum suction nozzle  235   b  vacuums the sealing bag, the welding rods  235   c  on both sides move inward to heat seal the sealing bag mouth. 
     The structure of the packaging box conveying system  300  is similar to the conveying device  130 , which is omitted here therefore. 
     For the packaging box packaging system  400 , as shown in  FIGS. 2-4 , the packaging box packaging system  400  includes a scanning device  410 , a sealing device  420 , a weighing device  430 , and an NG sorting mechanism  440  which are arranged in turn. A scanning device  410  for scanning the inner bag is further provided on a position, where the packaging box packaging system  400  is connected with the packaging box conveying system  300 . The scanning device  410  pre-folds four folded edges of the packaging box C by a plurality of power components such as cylinders, thereby facilitating subsequent sealing. The scanning device  410  also scans the product label on the outer wall of the packaging box C and transmits the acquired label information to the weighing device  430 . Then, after the pre-folded packaging box C is sealed and packaged by the sealing device  420 , it is weighed by the weighing device  430 . The weighing device  430  determines weight standard of the packaging box C according to the obtained label information, which judges whether the packaging box C has reached standard or not, and the unqualified packaging box C is sorted and discharged via the NG sorting mechanism  440 . 
     It can be understood, the solid state disk packaging line can be provided with a plurality of detecting mechanisms, such as CCD visual inspection and weight detection. In the process of packaging the solid state disk, when any stacking tray P or the packaging box C with the stacking tray P is found to be defective, if it is in the stage of the stacking tray conveying system  100 , the moving identifier information of the corresponding stacking tray P is obtained by scanning the tray fixed identifier of the tray  150 , the label information of the packaging box C is obtained, and the defective product is recognized and discharged by the sorting mechanism  440 ; if it is at a later stage after the packaging system  200 , it can be recognized and discharged by the sorting mechanism  440  by scanning the label information of the packaging box C. Thus, even if a small amount of defective products are found in the packaging process, the solid state disk packaging line can continue to operate without stopping, and the defective products are discharged at the final stage, thereby effectively improving efficiency. 
     A detailed description of the solid state disk packaging line is shown, referring to  FIG. 1  to  FIG. 16 . 
     Before loading the stacking tray P, the tray  150  is moved to the stacking tray loading device  120 , the identifier placer  160  places the stacking tray moving indicator onto the label placement position  153  on the upper side of the tray  150 , and the tray fixed identifier on the tray  150  is read and bundled with the stacking tray moving identifier. 
     The pick-place robot  170  grabs the stacking tray P from the solid state disk bagging system or other mechanism and places it on the tray  150  at the loading position of the stacking tray loading device  120 . The tray  150  with the stacking tray P is moved along the upper conveying passage  131  to the tray unloading device  140  driven by the conveying device  130 . After the stacking tray P is loaded to the packaging system  200 , the empty tray  150  is moved downward along the lower conveying passage  132  to the tray loading machine  110  driven by the tray unloading device  140 . The empty tray  150  is lifted upwards by the tray loading machine  110 , flush with the upper conveying passage  131  to receive the stacking tray P, and returns to the stacking tray loading device  120 . The identifier placer  160  removes the original stacking tray moving indicator and places a new stacking tray moving indicator onto the label placement position  153  so as to carry the next stacking tray P. 
     When the stacking tray P leaves the tray to the packaging system  200 , the tray fixed identifier and the stacking tray moving identifier are disconnected. The disconnected tray fixed identifier carries another stacking tray P after the tray is returned, and then the tray fixed identifier is again bundled with the corresponding stacking tray moving identifier. For the disconnected stacking tray moving identifier, the system automatically transfers the stacking tray information to the packaging system  200  when the corresponding stacking tray P leaves the stacking transport system  100  to the packaging system  200 . So the stacking tray P is always monitored. The packaging box loading device  210  unfolds the packaging box C, when the unfolded packaging box C moves to the sealing bag loading device  220 , the sealing bag loading device  220  bags the sealing bag into the packaging box C, and the sealing bag mouth is reversely sleeved outside the packaging box C mouth. When the packaging box conveying mechanism  232  transfers the packaging box C to the packaging position, and as is shown in  FIG. 14 , the adjustment unit  238  adjusts the packaging box C so that the packaging box C is placed in a position facing the stacking tray P and the robot mechanism  231 . Then the labeling mechanism labels the outer side wall of the packaging box C. 
     When the partition loading mechanism  233  puts a partition into the packaging box C located at the packaging position  230   c , the robot mechanism  231  puts the stacking tray P grabbed from the tray unloading device  140  into the packaging box C. After the partition loading mechanism  233  puts another partition into the packaging box C located at the packaging position  230   c , and the desiccant loading mechanism  234  puts the desiccant into the packaging box C located at the packaging position  230   c , the packaging box C is moved by the packaging box conveying mechanism  232  to the sealing bag flanging mechanism  239 . After the sealing bag mouth is turned over, then heat sealed by the sealing bag heat sealing mechanism, the packaging box C is moved to the other long side of the frame driven by the packaging box conveying mechanism  232 , and conveyed below the partition loading mechanism  233  and the desiccant loading mechanism  234  to transfer the packaging box C to the packaging box conveying system  300 . 
     In this process, the label printing mechanism communicates with the product information base and acquires the stacking tray information to print the corresponding product information into the product label. The labeling mechanism attaches the product label to the outer wall of the packaging box C. After the packaging box conveying system  300  transfers the packaging box C to the packaging box packaging system  400 , the scanning device  410  pre-folds four folded edges of the packaging box C, and scans the product label on the outer wall of the packaging box C. Then the pre-folded packaging box C is sealed and packaged by the sealing device  420 , and it is weighed by the weighing device  430 . The weighing device  430  determines weight standard of the packaging box C according to the obtained label information, which judges whether the packaging box C has reached standard or not. The unqualified packaging box C is sorted and discharged via the NG sorting mechanism  440 . 
     In comparison with the prior art, the solid state disk packaging line works by cooperating with the stacking tray conveying system  100 , the packaging box conveying system  300 , and the packaging box packaging system  400  to seal solid state disks into a packaging box C. The solid state disk packaging line is highly automated, sealing solid state disks does not require manual operation, which reduces the labor dependence, packages products of different specifications at the same time, avoids doing damage the solid state disk due to the manual packaging, and significantly increases production efficiency. 
     While the invention has been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.