Patent Description:
During the production of the tobaccos, belt-shaped materials are commonly used, such as a cigarette paper, a cigarette box lining paper, a packaging paper in traditional tobaccos; and a new low-temperature non-burning tobacco belt-shaped tobacco and a cooling section PLA material. The belt-shaped material exists in the form of a tray or roll. During use, the belt-shaped material tray needs to be installed on the unwinding device and then the head of the belt-shaped material is pulled to each roller, only after which can the production be started; and two unwinding device are generally provided, and are used alternately, in which one roll of belt-shaped material tray is used up and then its tail is spliced with the head of another belt-shaped material tray, subsequently, the another belt-shaped material tray participates in the production, and then a new belt-shaped material tray is needed to be installed on the unwinding device, and its head is lead out to prepare for the subsequent splicing of the belt-shaped material. <CIT> discloses a machine for producing articles, in particular a packaging machine for producing packets of cigarettes, a reel, laid flat on a support, is fed, by means of a transfer device, to a relative unwinding pin fitted to the periphery of a rotary platform rotating about a substantially horizontal axis; the unwinding pin being set to a substantially radial position with respect to the platform axis; the rotary platform being rotated to set said unwinding pin to a vertical receiving position facing upwards; the reel being fitted downwards onto the unwinding pin in the receiving position; and the unwinding pin being rotated, with respect to the rotary platform, into an axial position with respect to the rotary platform before unwinding the reel.

Now, most of the carry and the replacement of the material trays and the pulling of the head for belt-shaped materials can only be handled manually, in which the original belt-shaped material is still working normally while the belt-shaped material trays are replaced manually and the head is pulled manually, so there is a certain degree of danger; and there is a low efficiency and high labor intensity in manual operation. With the development of science and technology, the tobacco industry requires more and more automation of cigarette production equipment, and less and less reliance on labor, so the existing methods of manually replacing the belt-shaped material tray and manually pulling the head have severely restricted the development of automated tobacco production.

Now, the solution to these problems at home and abroad is mainly fulfilled by using material stations. The typical representative is the BOB material station of HAUNI of Germany. This kind of equipment uses a clever mechanical structure to fulfill the full automation of feeding, head finding and traction, and has a high reliability. Some of the domestic material stations are YF72 series of material station, of which the basic function is the same as that of HAUNI's BOB material station, except that in order to achieve the purpose of one for two, the two material stations are arranged one behind the other. Although such equipment can be highly automated, it is not widely used in practical applications since the occupied area is too large. For now, the planning of the tobacco production workshop is relatively mature, so it is difficult to find a large area to arrange the material station; and in the existing material station on the market, the main reason for its large occupied area is that the transposition of new and old belt-shaped material trays adopts the form of a turntable, that is, the old and new belt-shaped material trays are transposed by making a circular motion, which inevitably increases the length of the equipment, resulting in a large material station and occupied area, and seriously affecting the promotion and use of the material station.

Therefore, a material transposition equipment and a material station are needed to prevent the occurrence of the above-mentioned problems.

In view of this, the disclosure provides a material displacement equipment and a material station, which can not only fulfill the displacement of the belt-shaped material roll in the linear space to simplify the walking route, but also reduce the volume of the replacement equipment and the occupied area to facilitate the use in mature tobacco production lines.

In order to solve the above technical problems, the disclosure provides a material displacement equipment including two displacement devices cooperated with each other, in which
each of the two displacement devices includes:.

Preferably, the turnover mechanism includes a turnover shaft fixedly arranged on the lifting base, a turnover frame rotatably sleeved on the turnover shaft, and a turnover drive assembly provided between the turnover frame and the turnover shaft; and
the turnover drive assembly is used to drive the turnover frame to rotate with the turnover shaft as an axis.

Preferably, the turnover frame is an L-shaped case, and two turnover frames of the two displacement devices can avoid each other when walking toward each other on a same linear track.

Preferably, the turnover drive assembly includes a large gear fixedly sleeved on the turnover shaft, a planetary gear meshed with the large gear, and a turnover drive member provided on the turnover frame for driving the planetary gear to rotate with a central axis of the planetary gear as an axis. Preferably, each of the two displacement devices includes a limiting mechanism provided on the turnover frame for cooperating with the turnover shaft to limit the rotation angle of the turnover frame.

Preferably, the limiting mechanism includes a notch opened on an outer circumferential side wall of the large gear, and a stopping block provided on the turnover frame and matched with the notch to stop the rotation of the turnover frame.

Preferably, a rotation angle of the turnover frame with the turnover shaft as the axis is <NUM>°-<NUM>°.

Preferably, the unwinding mechanism includes an unwinding drive head rotatably arranged on the turnover frame, and an unwinding drive assembly arranged on the turnover frame to drive the unwinding drive head to rotate with a central axis of the unwinding drive head; and.

When each of two unwinding driving heads of the two displacement devices is in a vertical state, extension lines of central axes of the two unwinding driving heads are on one same straight line.

Preferably, the unwinding drive assembly includes an unwinding motor, in which an output end of the unwinding motor is installed with a driving gear coaxially rotated with the output end, the unwinding drive head is rotatably installed on an outer side wall of the turnover frame through a bearing and sleeved with a driven gear ring, and a transmission toothed-belt is sleeved on the driving gear and the driven gear ring.

A material station includes a cabinet body and the above-mentioned material displacement device, in which the cabinet body is opened with a displacement slot for accommodating a sliding of an unwinding driving head.

The advantageous effects of the above technical solutions of the disclosure are as follows.

In the prior art, the equipment has a long stroke when replacing the belt-shaped material roll, which causes that the equipment occupies a large space and cannot be applied to a mature tobacco production line. However, the disclosure adopts two oppositely arranged displacement devices to reduce the stroke and the occupied space, in which the displacement device includes a lifting base, a turnover mechanism, an unwinding mechanism and a lifting mechanism; the rotation of the turnover mechanism can drive the rotation adjustment of the unwinding mechanism within the circumferential range; the provided unwinding mechanism can be used in conjunction with the belt-shaped material roll to fulfill the unwinding and use of the belt-shaped material; the provided lifting mechanism can drive the turnover mechanism to make a linear motion; and when the two displacement devices are cooperated, the cooperation of the lifting mechanism and the turnover mechanism can fulfill the displacement of the belt-shaped material roll in the linear space, which simplifies the walking route and the structure by transforming it into a straight line, and also reduces the volume of the replacement equipment and the occupied area, thereby facilitating the use in mature tobacco production lines.

In addition, the adopted turnover mechanism includes the turnover shaft arranged on the lifting base, in which the turnover shaft is fixedly arranged on the lifting base, facilitating to fulfill the stability of the structure of the lifting base, and through the turnover frame provided on the turnover shaft by a rotating member, the rotation of the turnover frame with the turnover axis and the stable structure can be fulfilled, in which the rotating member is a roller bearing or a sliding sleeve; in order to fulfill the rotation of the turnover frame with the turnover axis, a large gear is fixed on the turnover axis and a turnover driving member is provided on the turnover frame, and at the same time, the output shaft of the turnover drive member is provided with a planetary gear meshed with the large gear, thereby fulfilling the circumferential rotation of the turnover frame with the turnover shaft; the turnover mechanism can also adopt another manner in which a stepper motor is provided on the lifting base and the turnover frame is provided on the output shaft of the stepper motor; and the turnover mechanism of the disclosure can fulfill a stable, firmly and reliable operation of the turnover mechanism under the premise of a small space and a small bearing surface.

In addition, the adopted turnover frame is the L-shaped case, so that after being overturned to a cooperated angle, two L-shaped cases can avoid each other during running on the same straight track, which saves a lot of space and solves the problem of transposing the two displacement devices in a small space; and when the turnover mechanism adopts a stepper motor set on the lifting base and a turnover frame on the output shaft of the stepper motor, the turnover shaft are L-shape and the turnover frame is replaced with a short section away from the lifting base, and thus, the two turnover mechanism can also avoid each other, but when the turnover frame structure of the disclosure is adopted, the support layout is more reasonable, the durability is strong, and the parts can be easily replaced.

In addition, the adopted limiting mechanism limits the turnover angle of the turnover frame, so that the turnover frame can be limited and locked when the two displacement devices perform displacement avoidance, so as to avoid the damage to the turnover driving member due to the uneven gravity distribution of the turnover frame while not affecting the accuracy of the subsequent turnover angle, in which the damage to the turnover driving member and the inaccuracy of the subsequent turnover angle are not conducive to the stable operation of the two displacement devices when the positions are interchanged; the limiting mechanism used in the disclosure includes the notch opened on the outer ring side of the large gear for the limit, a stopping block cooperating with the notch is provided on the turnover frame for the limit, in which the length of the notch is a quarter of that of the outer ring of the large gear, which can ensure the strength of the large gear while providing a reliable limit for the stopping block so as to ensure the operation stability of the structure, and meanwhile, a sensor can be provided on the stopping block to detect whether the turnover frame is in place so as to ensure the operation accuracy of the equipment; and obviously, in order to achieve the purpose of the limit, two protrusions with a right angle can be provided on either side of the large gear, and a limit block used in conjunction with the two protrusions can be provided on the turnover frame to fulfill the limit function.

In order to make the objectives, technical solutions, and advantages of the embodiments of the disclosure clearer, the technical solutions of the embodiments of the disclosure will be described clearly and completely in conjunction with accompanying drawings <NUM>-<NUM> of the embodiments of the disclosure. Obviously, the described embodiments are part of the embodiments of the disclosure, rather than all of the embodiments. Based on the described embodiments of the disclosure, all other embodiments obtained by those skilled in the art shall fall within the protection scope of the claims.

As shown in <FIG>, the disclosure provides a material displacement equipment including two displacement devices cooperated with each other, in which
each of the two displacement devices includes:.

Specifically, the disclosure provides a material displacement equipment including two displacement devices cooperated with each other in which
each of the two displacement devices includes:.

In addition, in the lifting mechanism, the existing electric cylinder <NUM> is preferably adopted, and obviously, a screw, a sliding rail and a stepper motor with an output shaft connected with the screw can also be adopted, while the lifting base is arranged on the sliding rail and is matched with the screw, thereby fulfilling the lifting of the lifting base through the rotation of the screw; an electric telescopic rod can be adopted to fulfill the lifting of the lifting base, and obviously, the lifting base is provided on the chain of the chain associate structure to fulfill the lifting function; and
when the lifting mechanism adopts a preferred solution, the electric cylinder <NUM> is arranged in a vertical direction.

As shown in <FIG>, in one embodiment of the disclosure, the turnover mechanism <NUM> includes a turnover shaft <NUM> fixedly arranged on the lifting base <NUM>, a turnover frame <NUM> rotatably sleeved on the turnover shaft <NUM>, and a turnover drive assembly provided between the turnover frame <NUM> and the turnover shaft <NUM> to drive the turnover frame <NUM> to rotate with the turnover shaft <NUM> as an axis. The turnover shaft <NUM> is a right cylinder and rotatably sleeved with the turnover frame <NUM> through a bearing, and the turnover drive assembly works to drive the turnover frame <NUM> to rotate with the turnover shaft <NUM> as the axis, which fulfills a stable and reliable rotation.

Further, the turnover drive assembly includes a large gear <NUM> fixedly sleeved on the turnover shaft <NUM>, a planetary gear <NUM> meshed with the large gear <NUM>, and a turnover drive member provided on the turnover frame <NUM> for driving the planetary gear <NUM> to rotate with a central axis of the planetary gear as an axis; the turnover drive member is a turnover motor <NUM>, which adopts Shinano <NUM> stepper motor of standard model STP-28D100X; and obviously, the adopted turnover motor can also be driven by hydraulic or oil motor. When the turnover motor <NUM> works, its output end drives the planetary gear <NUM> to rotate coaxially together, and the planetary gear <NUM> meshes with the outer teeth of the large gear <NUM>, so that the turnover frame <NUM> is driven to rotate with the turnover shaft <NUM> as the axis, and the driving is stable and reliable.

In another embodiment, a stepper motor is fixedly installed on the lifting base <NUM>, the turnover shaft <NUM> adopts a Z-shaped column and has one end fixedly connected with the output end of the stepper motor, in which the turnover frame <NUM> is replaced with a part of the Z-shaped column, so that only an unwinding mechanism is required to be provided on the short section of the Z-shaped column away from the stepper motor to fulfill the replacement. However, the output shaft of the stepper motor will be applied a large rotational potential when being static, which may cause damage to the stepper motor.

According to another embodiment of the present invention, as shown in <FIG>, the turnover frame <NUM> is an L-shaped case, and when one turnover frame <NUM> is in a horizontal position, and the other turnover frame <NUM> is in a vertical or mirror-symmetrical position, the two electric cylinders <NUM> separately drive the two turnover frames <NUM> to walk toward each other on the same straight track and avoid each other. Preferably, when the two turnover frames <NUM> walk to the parallel state, there is no extra space between each other, that is, the two turnover frames <NUM> walk toward each other on the same straight track and just avoid each other. Thus, the designed structure is reasonable and compact, which saves occupied space, and obviously, a larger gap can also be designed, which improves the fault tolerance rate, and avoids the damage caused by the collision of the two displacement devices due to positioning failure.

In an embodiment of the disclosure, as shown in <FIG>, a limiting mechanism <NUM> is installed between the turnover frame <NUM> and the turnover shaft <NUM> to limit the rotation angle of the turnover frame <NUM>, and further limit the rotating turnover frame <NUM> to ensure the accurate and reliable locking of the rotation stop position.

Further, the limiting mechanism <NUM> includes a notch <NUM> opened on an outer circumferential side wall of the large gear <NUM>, and a stopping block <NUM> provided on the turnover frame <NUM> and matched with the notch <NUM> to stop the rotation of the turnover frame <NUM>. The stopping block <NUM> moves along the arc trajectory in the notch <NUM> while the turnover frame <NUM> rotates, in which when the stopping block <NUM> comes into contact with both ends of the notch <NUM>, it directly acts as a stop and prevents the rotation inertia of the turnover frame <NUM> from damaging the stepper motor that drives the rotation of the turnover frame <NUM>, which protects the stepper motor to a certain extent, and prolongs the service life of the stepper motor.

In another embodiment, the limiting mechanism <NUM> can adopt a travel switch or a position sensor to cooperate with a controller, and the controller controls the stepper motor that drives the turnover frame <NUM> to rotate. In addition to the stepper motor limiting the position by itself, the cooperation of the travel switch or the position sensor with the controller further controls and locks the stop position of the turnover frame <NUM>, so that the limit is more reliable.

Further, preferably, the rotation angle of the turnover frame <NUM> is <NUM>°-<NUM>°, that is, the notch <NUM> is a quarter of the outer circumference of the large gear <NUM>; the two turnover frames <NUM> can only be overturned between the horizontal position of the unwinding drive head <NUM> horizontally facing the front side and the vertical position with the unwinding drive head <NUM> facing upright; and obviously, the turnover angle of the turnover frame <NUM> can also be greater than <NUM>°, which only needs to be adjusted by the limiting mechanism.

In another embodiment of the disclosure, as shown in <FIG>, the unwinding mechanism <NUM> includes an unwinding drive head <NUM> rotatably mounted on the turnover frame <NUM>, and an unwinding drive assembly mounted on the turnover frame <NUM> to drive the unwinding drive head <NUM> to rotate with its central axis as an axis; and when the two unwinding drive heads <NUM> are in the vertical state, their central axis extension lines are a same straight line, so that they can be accurately transposed, and the deviation can be prevented from affecting the normal progress of follow-up work.

Further, the unwinding drive assembly includes an unwinding motor <NUM>, in which an output end of the unwinding motor <NUM> is installed with a driving gear <NUM> that rotates coaxially with the output end; the unwinding drive head <NUM> is rotatably mounted on the outer side wall of the turnover frame <NUM> through a bearing and is sleeved with a driven gear ring <NUM>; the driving gear <NUM> and the driven gear ring <NUM> are drivingly sleeved with a transmission toothed-belt <NUM>; and the unwinding motor <NUM> is a Demark D110M-R600300A-E servo motor. When the motor works, its output end drives the driving gear <NUM> to rotate coaxially, and the driven gear ring <NUM> and the unwinding driving head <NUM> are driven to rotate through the transmission toothed-belt <NUM>, so that the driving is stable and reliable.

In another embodiment of the disclosure, the output end of the servo motor can be directly connected to the unwinding drive head <NUM>, and the output end of the servo motor directly drives the unwinding drive head <NUM> to rotate coaxially therewith.

As shown in <FIG>, since the material displacement equipment according to an embodiment of the disclosure is applied to a material station, an embodiment of the disclosure also correspondingly provides a material station, which includes a cabinet body and the above-mentioned material displacement equipment, the cabinet body is provided with a displacement slot (<NUM>) for accommodating a sliding of an unwinding driving head (<NUM>).

The above embodiments of the material displacement equipment are all applicable to the embodiments of the material station, and the same technical effect can also be achieved.

As another preferred embodiment of the disclosure, a material station includes a material storage <NUM>, a cabinet body, and a material replacement overlap mechanism <NUM>, in which the material replacement overlap mechanism <NUM> is installed on the cabinet body, and at least one set of material replacement overlap mechanisms <NUM> are installed on and supported by the cabinet body;.

Specifically, the rear side of the rack <NUM> is installed with a grabbing and lifting mechanism <NUM> arranged vertically along the height direction of the rack <NUM>, in which the grabbing and lifting mechanism <NUM> grabs the belt-shaped material roll in the material storage <NUM>, and lifts and overturns it to a material supply station <NUM> on the top of the rack <NUM>.

The material displacement equipment is installed in the rack <NUM> between the grabbing and lifting mechanism <NUM> and the main vertical plate <NUM>; the material displacement equipment is arranged vertically along the height direction of the rack <NUM>. The displacement slot <NUM> is opened on the main vertical plate <NUM> along the vertical direction. The unwinding driving head <NUM> is in front of the main vertical plate <NUM> through the displacement slot <NUM>, and can move up and down along the displacement slot <NUM> and can be overturned. When the unwinding drive head <NUM> moves to the top of the rack <NUM>, the unwinding drive head <NUM> tensions the roll of the belt-shaped material roll of the material supply station <NUM>, and moves the belt-shaped material roll along the displacement slot <NUM> to a new material roll starting station <NUM> on the main vertical plate <NUM>.

The new material roll starting station <NUM> is in the middle of the displacement slot <NUM> along the vertical direction, and the unwinding station is the bottom of the displacement slot <NUM>, in which the old belt-shaped material roll is at the unwinding station. The main vertical plate <NUM> is installed with a tape supply mechanism <NUM> to provide a double-sided tape for the splicing of the head of the new belt-shaped material and the tail of the old belt-shaped material, in which a glue station <NUM> is installed on the main vertical plate <NUM> under the tape supply mechanism <NUM>, a splicing station <NUM> is installed on the main vertical plate <NUM> and installed with an overlap mechanism <NUM> to fulfill the splicing of the head of the new belt-shaped material and the tail of the old belt-shaped material. A traction mechanism <NUM> is installed on the main vertical plate <NUM> to pull the head of the new belt-shaped material and the double-sided tape to the overlap mechanism <NUM>, and the tension adjustment mechanism <NUM> and the discharge channel <NUM> is installed on the main vertical plate <NUM> below the overlap mechanism <NUM>, in which the tension adjusting mechanism <NUM> adjusts the tension of the belt-shaped material, and the discharge channel <NUM> discharge the belt-shaped material.

The working principle of the disclosure is as follows.

S1, the grasping and lifting mechanism <NUM> lifts the uppermost belt-shaped material roll among the vertically stacked belt-shaped material rolls in the material storage <NUM> to the material supply station <NUM>.

S2, the turnover motor <NUM> of the displacement device of the two sets of displacement devices of the material displacement equipment that is not involved in the production is started and drives the corresponding planetary gear <NUM> to rotate, and then the planetary gear <NUM> rotates around the large gear <NUM> while rotating due to the planetary gear <NUM> meshing with the large gear <NUM>, so that the turnover frame <NUM> is overturned by <NUM>°, thereby overturning the corresponding unwinding driving head <NUM> to the vertical upward position;
the electric cylinder <NUM> is started to drive the unwinding drive head <NUM> to move vertically upwards, and stops when the unwinding drive head <NUM> is inserted into the reel of the belt-shaped material roll of the material supply station <NUM> from bottom to top, the tension shaft of the unwinding driving head <NUM> is started to make the unwinding driving head <NUM> tension the inner wall of the reel of the belt-shaped material roll; then the turnover motor <NUM> is started again to reversely overturn the turnover frame <NUM> through the planetary gear <NUM> and the large gear <NUM> by <NUM>°, so that the unwinding drive head <NUM> is overturned to a horizontal position facing the front of the main vertical plate <NUM>, and meanwhile, the belt-shaped material tensioned by the unwinding driving head <NUM> is in front of and in parallel with the main vertical plate <NUM>; and the electric cylinder <NUM> is started to drive the belt-shaped material roll to move vertically downward along the displacement slot <NUM> on the main vertical plate <NUM> to the new material roll starting station <NUM>.

S3, the traction mechanism <NUM> is started to find the head of the tape-shaped material at the new material roll starting station <NUM>, and clamps and pulls the head of the new belt-shaped material roll to the overlap mechanism <NUM> to wait for the splicing.

S4, the old belt-shaped material roll during the normal production is at the bottom of the displacement slot <NUM> on the main vertical plate <NUM>, that is, the unwinding station, of which the head passes through the overlap mechanism <NUM>, the tension adjustment mechanism <NUM> and the discharge channel <NUM> in turn to the belt-shaped material production system, and when the old belt-shaped material roll is about to be used up and needs to be replaced with a new belt-shaped material, the overlap mechanism <NUM> is started to splice the head of the new belt-shaped material with the tail of the old belt-shaped material.

S5, after the splicing is completed, the tensioning shaft of the unwinding drive head <NUM> where the old belt-shaped material roll is located is started, so that the reel of the old belt-shaped material roll is loosened by the unwinding drive head <NUM>, and pushed out from the unwinding drive head <NUM>; and the turnover motor <NUM> of the displacement device where the old strip material is located is started, the corresponding unwinding drive head <NUM> is overturned until facing upwards, then the electric cylinder <NUM> of the displacement device is started to drive the unwinding drive head <NUM> to move upward, and the electric cylinder <NUM> of the displacement device where the new belt-shaped material roll is located is started to drive the new belt-shaped material roll to move down to the unwinding station.

S6, the grasping and lifting mechanism <NUM> is restarted to lift the belt-shaped material roll in the material storage <NUM> to the material supply station <NUM>, the electric cylinder <NUM> of the displacement device with the unwinding drive head <NUM> facing upward is started, and the belt-shaped material roll is grasped from the material supply station <NUM>, is turned over, and then is carried to the new material roll starting station <NUM> so as to prepare for the next splicing of new and old belt-shaped materials.

Claim 1:
A material displacement equipment, including two displacement devices cooperated with each other, and
each of the two displacement devices includes:
a lifting base (<NUM>);
a turnover mechanism (<NUM>) rotatably arranged on the lifting base (<NUM>);
an unwinding mechanism (<NUM>) arranged on and rotated with the turnover mechanism (<NUM>) to drive a belt-shaped material roll to rotate;
characterized in that:
the two displacement devices are arranged oppositely; and
wherein each of the two displacement devices includes a lifting mechanism connected with the lifting base (<NUM>) to drive the lifting base (<NUM>) to move in a straight line so as to transpose two unwinding mechanisms (<NUM>) of the two displacement devices.