Automatic transfer and stacking device for paper packaging boxes

Abstract

The present application relates to the technical field of packaging box transfer and stacking, and provides an automatic transfer and stacking device for paper packaging boxes, including a six-axis mechanical arm, a fixed plate is fixedly connected to the bottom of the front side of the six-axis mechanical arm, and clamps are arranged on both sides of the bottom end of the fixed plate, and a rotating plate 1 is slidably connected inside the connecting blocks on both sides, and grooves are provided on the sides of the clamps on both sides. The bottom ends of the rotating plates 1 on both sides are rotatably connected to connecting plates, and the front and rear ends of the connecting plates on both sides are rotatably connected to pull plates, and the bottom ends of multiple pull plates are rotatably connected to trapezoidal blocks, and the sides of multiple trapezoidal blocks away from the clamps are abutted against a support plate. The present invention drives the rotating plate 1 to rotate through the clamp, so that the connecting plate can move up and drive the pull plate to rotate, and further the trapezoidal block can push the support plate to rotate a certain angle, so as to achieve the purpose of supporting the bottom of the packaging box, and prevent the possibility of the packaging box accidentally slipping during the transportation process.

Description

Technical Field

[0001] The invention relates to the technical field of packaging box transfer and stacking, and in particular to an automatic transfer and stacking device for paper packaging boxes. Background Art

[0002] A carton refers to a three-dimensional container made of cardboard, which is often used to package various items to prevent them from being damaged by foreign objects during transportation or storage. In particular, in various large warehouses, cartons of a certain specification are usually used to package the same type of items. The packaged items are then stacked on pallets in sequence by robotic arms, and forklifts, gantry cranes and other equipment are used to transport the items and pallets as a whole to the corresponding shelves, so as to improve space utilization while protecting the items from external damage when they are stored.

[0003] However, due to the relatively low hardness of the carton, the relevant clamping mechanism that cooperates with the movement of the robotic arm cannot exert too much force on the carton, otherwise the carton may be deformed or damaged and fail to protect the items. A smaller clamping force may cause the items to slip during the transfer from the conveyor belt to the pallet, which may cause serious economic losses and safety accidents. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an automatic transfer and stacking device for paper packaging boxes, which solves the problem that paper packaging boxes may slide under the action of gravity due to insufficient clamping force during the transfer and stacking process.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic transfer and stacking device for paper packaging boxes, comprising a six-axis mechanical arm, a fixed plate is fixedly connected to the bottom of the front side of the six-axis mechanical arm, clamping plates are arranged on both sides of the bottom end of the fixed plate, the clamping plates on both sides are fixedly connected to the side away from each other with connecting blocks, rotating plates 1 are slidably connected inside the connecting blocks on both sides, sliding blocks are rotatably connected to the tops of the rotating plates 1 on both sides, the sliding blocks on both sides are fixedly connected to the side away from each other with springs, the springs on both sides are fixedly connected to the vertical plates at the ends away from each other, grooves are provided on the sides close to each other of the clamping plates on both sides, the bottom ends of the rotating plates 1 on both sides are rotatably connected to the connecting plates, the front and rear ends of the connecting plates on both sides are rotatably connected to the pulling plates, the bottom ends of the multiple pulling plates are rotatably connected to the trapezoidal blocks, and the multiple The top ends of the sliding blocks are connected to the fixing plates at the two ends, and the top ends of the sliding blocks are connected to the fixing plates at the two ends. A limiting rod is passed through the interior of the connecting plates, and the bottom ends of the limiting rods on the two ends are fixedly connected to the middle of the bottom ends in the groove. The top ends of the limiting rods on the two ends are fixedly connected to the top ends in the groove. The bottom ends of the trapezoidal blocks are respectively slidably connected to the front and rear sides of the bottom ends in the groove. The bottom ends of the multiple supporting plates are close to the limiting rods and are rotatably connected to the bottom ends in the grooves. The multiple supporting plates are rotatably connected to rotating plates two at one end away from the limiting rods, and the rotating plates two are rotatably connected to the front and rear ends in the grooves on both sides at one end away from the supporting plates. The bottom ends of the multiple supporting plates are rotatably connected to multiple balls, and the bottom ends of the multiple balls are slidably connected to the bottom ends in the grooves.

[0006] Preferably, the top of the fixed plate is fixedly connected to a hollow bin, the top of the hollow bin is fixedly connected to an exhaust fan, through grooves are provided at the front and rear parts of both sides of the fixed plate, and a plurality of I-shaped blocks are slidably connected inside the through grooves, the bottom ends of the I-shaped blocks are respectively fixedly connected to the front and rear sides of the top ends of the clamping plates on both sides, a plurality of I-shaped blocks are fixedly connected to pull rods at the upper parts of one end close to the hollow bin, and a plurality of pull rods are slidably connected inside the hollow bin at one end away from the I-shaped blocks, an air bin is fixedly connected to the middle part of the bottom end of the fixed plate, an air pipe is fixedly connected to the rear end of the air bin, and an end of the air pipe away from the air bin is fixedly connected to the rear end of the exhaust fan, and a plurality of through holes are provided at the bottom end of the air bin.

[0007] Preferably, a plurality of the support plates are fixedly connected with magnet one inside, a front and rear portion of a side close to the clamping plates on both sides are fixedly connected with magnet two, and a plurality of the magnets two are facing magnet one.

[0008] Preferably, the front and rear parts of the top ends of the two side clamps close to each other are rotatably connected to baffle plate 1, and the ends of multiple baffle plates 1 away from the clamps are rotatably connected to baffle plate 2, and the top ends of multiple baffle plates 2 are rotatably connected to the bottom end of the fixed plate.

[0009] Preferably, guide rods are passed through the interior of the plurality of I-shaped blocks, the two ends of the plurality of guide rods are respectively fixedly connected to the two ends of the through groove, the front and rear ends of the clamping plates on both sides are fixedly connected to support frames, and the top ends of the plurality of support frames are slidably connected to the bottom end of the fixed plate.

[0010] Working principle: When in use, the conveyor belt transports the packaging boxes to the area where the six-axis robot is located in sequence, and then the six-axis robot drives the fixed plate and the clamping plate to move to the outside of the packaging box to be transferred, and then starts the exhaust fan, so that the air inside the hollow bin can be quickly extracted. As the air pressure inside the hollow bin decreases, the I-block and the pull rod can move closer to the hollow bin along the guide rod under the push of the external air pressure. At this time, the clamping plate connected to the I-block can drive the rotating plate 1 to move synchronously through the connecting block. Since the top of the rotating plate 1 is connected to the slider and the spring, and the length of the rotating plate 1 is fixed, as the clamping plate continues to approach the packaging box, the rotating plate 1 as a whole can rotate to a certain extent, making it The bottom moves up along the connecting block. Similarly, the connecting plate connected to the rotating plate 1 can drive the pulling plate to rotate under the restriction of the limit rod. Further, the trapezoidal block can move along the bottom end of the groove. Since the trapezoidal block and the supporting plate are in contact with the inclined surface, the supporting plate can be subjected to force and rotate with the connection between it and the groove as the center when the trapezoidal block moves. When the splint moves to contact the packaging box, the exhaust fan, rotating plate 1, connecting plate, trapezoidal block, supporting plate, etc. will pause. At this time, the six-axis robot arm can be used to move the fixed plate and the splint to the target area, and the packaging box can also move accordingly under the action of friction. For some heavier packaging boxes, even if they slide down along the splint, they can still move. After moving a certain distance, it is blocked by the pallet, thereby preventing the packaging box from accidentally falling, thereby avoiding serious economic losses and safety accidents, and the movements of each moving part are realized through mechanical connection, without debugging, avoiding frequent maintenance processes, saving time, and when the six-axis robot arm transfers the packaging box to the surface of the pallet, the exhaust fan is used to inflate the inside of the hollow warehouse, at this time, the splint, the rotating plate 1, the trapezoidal block, etc. can return to the initial position, and at the same time, because the trapezoidal block no longer applies thrust to the pallet, the magnet 1 inside the pallet can drive the pallet back to the inside of the groove under the attraction of the magnet 2 located inside the splint, further, the packaging box can lose its support The turning plate 1 is supported and falls to the surface of the pallet. In addition, when transferring smaller packaging boxes, if the clamping plate still does not contact the packaging box after the bottom of the turning plate 1 moves to the top of the connecting block, the turning plate 1 can apply a pulling force to the spring through the slider to prevent the turning plate 1 from hindering the movement of the clamping plate through the extension of the spring, thereby achieving the purpose of being suitable for clamping packaging boxes of different specifications. When the exhaust fan draws out the air inside the hollow bin, the air can enter the air bin through the air pipe. Since there are evenly distributed through holes at the bottom of the air bin, the effect of blowing the top of the packaging box can be achieved to a certain extent, thereby preventing foreign matter from existing on the top of some packaging boxes and affecting the stability between the layers of packaging boxes during subsequent stacking.

[0011] The present invention provides an automatic transfer and stacking device for paper packaging boxes. It has the following beneficial effects:

[0012] 1. The present invention causes the rotating plate 1 to rotate through the displacement of the clamping plate, so that the connecting plate connected to the rotating plate 1 can move up and drive the pulling plate to rotate, and further the trapezoidal block can push the supporting plate to rotate a certain angle through the inclined surface, so as to achieve the purpose of supporting the bottom of the packaging box through the supporting plate, and eliminate the possibility of accidental slipping of the packaging box during transportation. The movement of each part is realized through mechanical transmission, which is simple and reliable, and there is no need to coordinate the movement of the clamping plate, the supporting plate, etc., which reduces the frequency and difficulty of related maintenance and achieves the effect of saving time.

[0013] 2. The present invention uses an exhaust fan to change the air pressure inside the hollow bin, so that the splint can be displaced under force. At the same time, the air exhausted by the exhaust fan can be transported to the air bin through the air pipe, and then the through hole is used to allow the air to blow the top of the packaging box to prevent foreign matter from existing on the top of the packaging box and affecting the subsequent stacking of other packaging boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the fixing plate connection structure of the present invention;

[0016] Figure 3 It is a cross-sectional schematic diagram of the hollow bin connection structure of the present invention;

[0017] Figure 4 It is a cross-sectional schematic diagram of the support plate connection structure of the present invention;

[0018] Figure 5 It is a cross-sectional schematic diagram of the splint connection structure of the present invention;

[0019] Figure 6 For the present invention Figure 2 A schematic diagram of the structure at A;

[0020] Figure 7 For the present invention Figure 3 A schematic diagram of the structure at B;

[0021] Figure 8 For the present invention Figure 5 Enlarged schematic diagram of the structure at location C.

[0022] Among them, 1. six-axis robot arm; 2. fixed plate; 3. splint; 4. connecting block; 5. rotating plate 1; 6. slider; 7. spring; 8. groove; 9. connecting plate; 10. pull plate; 11. trapezoidal block; 12. support plate; 13. hollow bin; 14. exhaust fan; 15. through groove; 16. I-shaped block; 17. pull rod; 18. air bin; 19. air pipe; 20. through hole; 21. vertical plate; 22. limit rod; 23. rotating plate 2; 24. ball; 25. magnet 1; 26. magnet 2; 27. baffle 1; 28. baffle 2; 29. ​​guide rod; 30. support frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please see attached Figure 1 , Attachment Figure 2 , Attachment Figure 6 and attached Figure 7 The embodiment of the present invention provides an automatic transfer and stacking device for paper packaging boxes, including a six-axis robot arm 1, a fixed plate 2 is fixedly connected to the bottom of the front side of the six-axis robot arm 1, clamping plates 3 are arranged on both sides of the bottom end of the fixed plate 2, the clamping plates 3 on both sides are fixedly connected to the side away from each other with a connecting block 4, the connecting blocks 4 on both sides are slidably connected with a rotating plate 5, the tops of the rotating plates 5 on both sides are rotatably connected with sliders 6, the sliders 6 on both sides are fixedly connected with springs 7 on the side away from each other, the springs 7 on both sides are fixedly connected with vertical plates 21 on the side away from each other, the clamping plates 3 on both sides are provided with grooves 8 on the side close to each other, the bottom ends of the rotating plates 5 on both sides are rotatably connected with connecting plates 9, the front and rear ends of the connecting plates 9 on both sides are rotatably connected with pulling plates 10, the bottom ends of multiple pulling plates 10 are rotatably connected with trapezoidal blocks 11, and the multiple trapezoidal blocks 11 are abutted against supporting plates 12 on the side away from the clamping plates 3.

[0025] The six-axis robot 1 can drive the fixed plate 2 to move in any direction in space, and then when the clamping plate 3 contacts the two sides of the packaging box, the packaging box can be transferred from the conveyor belt surface to the pallet surface with the six-axis robot 1, and each packaging box can be stacked layer by layer in sequence under the action of the six-axis robot 1. When the clamping plates 3 are forced to approach each other, the connecting blocks 4 connected thereto can move synchronously. Since the bottom of the rotating plate 5 is connected to the corresponding sliding groove inside the connecting block 4 through a rod, and the length of the rotating plate 5 is fixed, the rotating plate 5 can be forced after the connecting block 4 moves and move upward along the connecting block 4 to a certain extent. The connecting plate 9 connected to the bottom of the rotating plate 5 can pass through the connecting block 4 and the clamping plate 3 through the groove in the middle area of ​​the clamping plate 3, thereby driving one end of the pulling plate 10 to move upward. Similarly, the trapezoidal block 11 connected to the pulling plate 10 can also be moved by force when the pulling plate 10 rotates. Further, under the action of the inclined surface of the trapezoidal block 11 and the supporting plate 12 contacting each other, the supporting plate 12 can rotate at a certain angle. Therefore, under the push of the trapezoidal block 11, the supporting plate 12 can gradually move from the inside of the groove 8 to the bottom of the packaging box, so as to prevent the packaging box from slipping due to insufficient clamping force, thereby avoiding The occurrence of related economic losses and safety accidents, and the driving of the support plate 12 is realized through various mechanical structures, with a low failure rate and can be used for a long time, thereby avoiding the actual use efficiency being affected by frequent maintenance. In addition, when the splint 3 is used to clamp a packaging box with a smaller specification, the bottom of the rotating plate 5 can gradually move to the top of the connecting block 4 with the displacement of the splint 3. If the splint 3 is still not in contact with the packaging box at this time, the slider 6 at the top of the rotating plate 5 can apply tension to the spring 7, so that the rotating plate 5 can still move with the splint 3 and the connecting block 4 when it cannot rotate through the stretching deformation of the spring 7. , preventing the rotating plate 5 from blocking the clamping plate 3 from continuing to approach the packaging box after it cannot rotate, thereby increasing the range of specifications of the packaging boxes that the clamping plate 3 can clamp; on the contrary, before the rotating plate 5 moves to the top of the connecting block 4, the position of the slider 6 is limited by the spring 7 to prevent the slider 6 from moving with the clamping plate 3 under the pull of the rotating plate 5, causing the rotating plate 5 to be unable to rotate upward normally; in addition, with the assistance of the connecting plate 9, the connecting block 4 can limit the extreme rotation angle of the rotating plate 5 and the pulling plate 10 to prevent the support plate 12 from moving to the middle position of the packaging box after excessive rotation and failing to stably support the packaging box.

[0026] Please see attached Figure 2 and attached Figure 3A hollow bin 13 is fixedly connected to the top of the fixed plate 2, and an exhaust fan 14 is fixedly connected to the top of the hollow bin 13. Through grooves 15 are provided on the front and rear parts of both sides of the fixed plate 2, and I-shaped blocks 16 are slidably connected inside the multiple through grooves 15. The bottom ends of the I-shaped blocks 16 are respectively fixedly connected to the front and rear sides of the top ends of the clamping plates 3 on both sides, and the upper parts of the multiple I-shaped blocks 16 close to the hollow bin 13 are fixedly connected with pull rods 17, and the ends of the multiple pull rods 17 away from the I-shaped blocks 16 are slidably connected inside the hollow bin 13. An air bin 18 is fixedly connected to the middle part of the bottom end of the fixed plate 2, and an air pipe 19 is fixedly connected to the rear end of the air bin 18. The end of the air pipe 19 away from the air bin 18 is fixedly connected to the rear end of the exhaust fan 14, and a plurality of through holes 20 are provided at the bottom of the air bin 18.

[0027] The air inside the hollow bin 13 can be extracted by the exhaust fan 14, and when the air pressure inside the hollow bin 13 is reduced, the external air pressure can push the I-block 16 and the pull rod 17 to approach the hollow bin 13 along the through groove 15. At this time, the splint 3 connected to the I-block 16 can move synchronously to achieve the purpose of driving the splint 3 to move. At the same time, the air extracted by the exhaust fan 14 can enter the air bin 18 through the air pipe 19, and then be discharged through the through holes 20 evenly distributed at the bottom of the air bin 18. At this time, the air can blow the top of the packaging box to prevent foreign matter from existing on the top of the packaging box and affecting the stability of the subsequent packaging box stacking. In addition, the hollow bin 13 is in the shape of a "U" as a whole to ensure that it will not affect the connection between the fixed plate 2 and the six-axis robot 1.

[0028] Please see attached Figure 2 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 7 and attached Figure 8 The top ends of the sliders 6 on both sides are slidably connected to the bottom ends of the fixed plate 2, and the top ends of the vertical plates 21 are respectively fixedly connected to the two ends of the bottom of the fixed plate 2. The limiting rods 22 are passed through the interior of the connecting plates 9 on both sides, and the bottom ends of the limiting rods 22 on both sides are fixedly connected to the middle of the bottom end in the groove 8. The top ends of the limiting rods 22 on both sides are fixedly connected to the top end in the groove 8. The bottom ends of the trapezoidal blocks 11 are respectively slidably connected to the front and rear sides of the bottom end in the groove 8, and the bottom ends of multiple support plates 12 close to the limiting rod 22 are rotatably connected to the bottom end in the groove 8. The ends of multiple support plates 12 away from the limiting rod 22 are rotatably connected to the rotating plate 23, and the rotating plate 23 away from the end of the support plate 12 are respectively rotatably connected to the front and rear ends in the grooves 8 on both sides, and the bottom ends of multiple support plates 12 are rotatably connected to multiple balls 24, and the bottom ends of multiple balls 24 are slidably connected to the bottom end in the groove 8.

[0029] The movement direction of the slider 6 can be limited by the fixing plate 2 to prevent the slider 6 from affecting the normal movement of the rotating plate 5 after being offset. At the same time, the fixing plate 2 can also be used to fix the vertical plate 21, so that the spring 7 can be stably fixed to prevent the spring 7 from moving with the slider 6 without being stretched and deformed. The connecting plate 9 can be limited by the limit rod 22 to ensure that the connecting plate 9 moves smoothly without shaking, and the movement direction of the trapezoidal block 11 can be limited by the groove 8. In addition, the connection between the support plate 12 and the groove 8 allows the support plate 12 to rotate smoothly around the connection with the groove 8 when subjected to force. At the same time, the support plate 12 can also be supported by the rotating plate 23 to prevent the support plate 12 from being broken due to excessive force. The evenly distributed balls 24 can reduce the friction between the support plate 12 and the groove 8 to improve the sensitivity of the support plate 12 when it moves.

[0030] Please see attached Figure 4 and attached Figure 7 A magnet 1 25 is fixedly connected inside the plurality of support plates 12 , and a magnet 2 26 is fixedly connected to the front and rear parts of the two side clamps 3 close to one side, and the plurality of magnets 26 are directly opposite to the magnet 1 25 .

[0031] Due to the attraction between opposite poles of magnet 1 25 and magnet 2 26, the pallet 12 can return to the inside of the groove 8 by itself after the trapezoidal block 11 cancels the thrust on the pallet 12, so as to avoid the pallet 12 blocking the stacking of the packaging boxes. The volume of magnet 2 26 is relatively large to ensure that magnet 1 25 remains within the action range of magnet 2 26 after moving with the pallet 12. The restriction of the movement range of the pull plate 10, the trapezoidal block 11 and the pallet 12 by the connecting block 4 also avoids the influence of the attraction between magnet 1 25 and magnet 2 26 due to excessive change in the direction of the magnetic pole after the movement of magnet 1 25.

[0032] Please see attached Figure 2 The front and rear parts of the top ends of the two side clamps 3 close to each other are rotatably connected with baffle 1 27, and the ends of multiple baffles 1 27 away from the clamps 3 are rotatably connected with baffle 2 28, and the top ends of multiple baffles 28 are rotatably connected to the bottom end of the fixed plate 2.

[0033] Since baffle plate 1 27 and baffle plate 28 each have one end that can only rotate but cannot move by itself, baffle plate 1 27 and baffle plate 2 28 of fixed length can rotate under force when the splints 3 approach each other, and can jointly form a V-shape to prevent the packaging box from sliding forward and backward during transportation. In addition, when the splints 3 move away from each other, the angle between baffle plate 1 27 and baffle plate 2 28 gradually approaches 180 degrees, thereby automatically canceling the restriction on the packaging box.

[0034] Please see attached Figure 2 , Attachment Figure 3 and attached Figure 5A guide rod 29 is passed through the interior of multiple I-shaped blocks 16, and the two ends of the multiple guide rods 29 are fixedly connected to the two ends inside the through groove 15 respectively. The front and rear ends of the clamping plates 3 on both sides are fixedly connected to the support frames 30, and the top ends of the multiple support frames 30 are slidably connected to the bottom end of the fixed plate 2.

[0035] The guide rod 29 can cooperate with the through slot 15 to limit the movement direction of the I-shaped block 16, thereby preventing the I-shaped block 16 from causing the clamping plate 3 to deflect when moving. The support frame 30 can further support the clamping plate 3 to ensure that the clamping plate 3 is in a vertical state when moving or clamping the packaging box.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic transfer and stacking device for paper packaging boxes, comprising a six-axis robotic arm (1), characterized in that: The six-axis robot arm (1) is fixedly connected to a fixed plate (2) at the bottom of the front side, and clamping plates (3) are arranged on both sides of the bottom end of the fixed plate (2). The clamping plates (3) on both sides are fixedly connected to a connecting block (4) on the side away from each other, and the connecting blocks (4) on both sides are slidably connected to a rotating plate (5). The top of the rotating plate (5) on both sides is rotatably connected to a slider (6). The side away from each other of the sliders (6) on both sides is fixedly connected to a spring (7), and the side away from each other of the springs (7) on both sides is fixedly connected to a vertical plate (21). The side close to each other of the clamping plates (3) on both sides is provided with a groove (8). The bottom ends of the rotating plate (5) on both sides are rotatably connected to a connecting plate (9), and the front and rear ends of the connecting plates (9) on both sides are rotatably connected to a pulling plate (10), and the bottom ends of the plurality of pulling plates (10) are rotatably connected to a trapezoidal block (11), and the side away from the clamping plates (3) on both sides is abutted against a supporting plate (12), and the tops of the sliders (6) on both sides are The vertical plate (21) is slidably connected to the bottom end of the fixed plate (2), the top end of the vertical plate (21) is respectively fixedly connected to the two ends of the bottom of the fixed plate (2), the interior of the connecting plates (9) on both sides is penetrated by a limiting rod (22), the bottom ends of the limiting rods (22) on both sides are fixedly connected to the middle of the bottom end of the groove (8), the top ends of the limiting rods (22) on both sides are fixedly connected to the top end of the groove (8), the bottom ends of the trapezoidal blocks (11) are respectively slidably connected to the front and rear sides of the bottom end of the groove (8), and the plurality of support plates are The bottom ends of the support plates (12) close to the limiting rod (22) are rotatably connected to the bottom end of the groove (8); the ends of the plurality of support plates (12) away from the limiting rod (22) are rotatably connected to the second rotating plate (23); the ends of the second rotating plate (23) away from the support plates (12) are rotatably connected to the front and rear ends of the grooves (8) on both sides; the bottom ends of the plurality of support plates (12) are rotatably connected to the plurality of balls (24); the bottom ends of the plurality of balls (24) are slidably connected to the bottom ends of the grooves (8).

2. The automatic transfer and stacking device for paper packaging boxes according to claim 1 is characterized in that: The top of the fixed plate (2) is fixedly connected to a hollow bin (13), and the top of the hollow bin (13) is fixedly connected to an exhaust fan (14). Through grooves (15) are provided at the front and rear parts of both sides of the fixed plate (2), and a plurality of I-shaped blocks (16) are slidably connected inside the through grooves (15). The bottom ends of the I-shaped blocks (16) are respectively fixedly connected to the front and rear sides of the tops of the clamping plates (3) on both sides. The upper parts of the ends of the I-shaped blocks (16) close to the hollow bin (13) are fixedly connected to pull rods (17), and the ends of the pull rods (17) away from the I-shaped blocks (16) are slidably connected inside the hollow bin (13). The middle part of the bottom end of the fixed plate (2) is fixedly connected to an air bin (18), and the rear end of the air bin (18) is fixedly connected to an air pipe (19). The end of the air pipe (19) away from the air bin (18) is fixedly connected to the rear end of the exhaust fan (14), and a plurality of through holes (20) are provided at the bottom end of the air bin (18).

3. The automatic transfer and stacking device for paper packaging boxes according to claim 1 is characterized in that: A plurality of the support plates (12) are fixedly connected to magnet one (25) inside, and a front and rear portion of a side of the clamping plates (3) on both sides that are close to each other are fixedly connected to magnet two (26), and a plurality of the magnet twos (26) are directly opposite to magnet one (25).

4. The automatic transfer and stacking device for paper packaging boxes according to claim 1, characterized in that: The front and rear parts of the top ends of the two side clamps (3) close to each other are rotatably connected to baffle plate 1 (27), and the ends of the plurality of baffle plates 1 (27) away from the clamps (3) are rotatably connected to baffle plate 2 (28), and the top ends of the plurality of baffle plates 2 (28) are rotatably connected to the bottom end of the fixed plate (2).

5. The automatic transfer and stacking device for paper packaging boxes according to claim 2, characterized in that: A plurality of the I-shaped blocks (16) are provided with guide rods (29) running through them, and two ends of the plurality of guide rods (29) are respectively fixedly connected to two ends of the through slot (15). The front and rear ends of the clamping plates (3) on both sides are fixedly connected to support frames (30), and the top ends of the plurality of support frames (30) are slidably connected to the bottom ends of the fixed plates (2).

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