Automatic paperboard transport and stacking machine
Automatic cardboard palletizing machines that stack cardboard from bottom to top utilize a combination of trapezoidal pushers and lifting seats to solve the problem of high-level stacking when cardboard height increases, reducing costs and improving the stability and neatness of palletizing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TAIZHOU MAOHUA HONEYCOMB PAPER PROD FACTORY
- Filing Date
- 2026-05-07
- Publication Date
- 2026-06-05
AI Technical Summary
Existing cardboard palletizers require stacking at higher levels as cardboard height increases, leading to higher performance requirements and increased costs.
The automatic cardboard palletizer uses a bottom-up stacking mechanism, employing a drive motor and screw system to control trapezoidal pushers and lifting seats, enabling cardboard to be stacked from bottom to top. Combined with hydraulic cylinders and push plates, it achieves neat stacking, enhancing stability and cleanliness.
This eliminates the need for high-level stacking when cardboard height increases, reducing equipment costs and improving the stability and neatness of cardboard stacking.
Smart Images
Figure CN122144546A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of production palletizing technology, specifically an automatic palletizing machine for cardboard transportation. Background Technology
[0002] Cardboard is a thick, sturdy sheet material made from fibrous materials through a specific process, and it has a wide range of industrial and everyday applications.
[0003] The production of paperboard typically includes steps such as pulping, forming, drying, and pressing. Through manufacturing processes, sturdy paperboard is produced. The finished paperboard is automatically sent to the production line via conveyor belts, roller conveyors, and other conveyor systems to prepare for subsequent packaging and palletizing.
[0004] When stacking cardboard, subsequent cardboard needs to be stacked on top of the previous cardboard. As more cardboard is stacked, the cardboard becomes taller, requiring a higher lifting height from the palletizer. This places high demands on the performance of the palletizer and results in high costs.
[0005] Therefore, the present invention provides an automatic cardboard transport palletizing machine. Summary of the Invention
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: An automatic cardboard palletizing machine according to the present invention includes a conveyor; a base is provided at the end of the conveyor; a pair of first swivel grooves are symmetrically opened on the top of the base; a pair of first drive motors are symmetrically fixed to the side wall of the conveyor; a first drive screw is fixedly connected to the output end of the first drive motor; the end of the first drive screw is rotatably connected to the inner side wall of the first swivel groove; a first lead screw is connected to the middle of the first drive screw through a screw-nut pair; the first lead screw is located inside the first swivel groove and is slidably connected; a first scissor bar is hinged to the end of the first lead screw; a lifting seat is rotatably connected to the end of the first scissor bar; a pair of second swivel grooves are symmetrically opened on the side wall of the lifting seat; a second slider is slidably connected inside the second swivel groove; the second slider side... The wall is rotatably connected to a second scissor bar; the second scissor bar is rotatably connected to the first scissor bar; the end of the second scissor bar is rotatably connected to the inner wall of the first slide groove; a pair of third slide grooves are symmetrically opened on the top of the lifting seat; a second drive motor is fixedly connected to the side wall of the lifting seat; a second drive screw is fixedly connected to the output end of the second drive motor; the second drive screw passes through the side wall of the lifting seat and is rotatably connected to the lifting seat; the second drive screw is a positive and negative thread screw; a pair of third sliders are connected to the middle of the first drive motor through a screw and nut pair; the third sliders and the third slide grooves are slidably connected; a trapezoidal push block is fixedly connected to the top of the third slider. With the above structure, the cardboard can be stacked and stacked normally even as the cardboard is stacked higher and higher, without the need for high-level stacking, which is more convenient and saves costs.
[0008] Preferably, a positioning plate is detachably fixed to the end of the base by bolts; a hydraulic cylinder is fixed to the side wall of the positioning plate; and a push plate is fixed to the output end of the hydraulic cylinder. The above structure makes the cardboard stacking more neat and aligning, and improves the cleanliness of cardboard stacking.
[0009] Preferably, a pair of telescopic plates are symmetrically fixed to the side wall of the lifting seat; a fixed plate is fixed to the end of the telescopic plate; a connecting rod is fixed to the bottom side wall of the fixed plate; and a pressure plate is fixed to the end of the connecting rod. The above structure reduces the problem of cardboard slippage and increases the stability of cardboard stacking.
[0010] Preferably, a counterweight is fixed to the top of the pressure plate; multiple counterweights are provided on the pressure plate, and the above structure improves the fixing effect of the pressure plate on the cardboard.
[0011] Preferably, the bottom of the pressure plate is provided with multiple rolling balls; the rolling balls are arranged in an array on the pressure plate, which improves the stability and safety of cardboard stacking.
[0012] Preferably, the trapezoidal pusher is equipped with multiple wear-resistant rollers; the wear-resistant rollers are rotatable, and the above structure makes the movement of the cardboard smoother and reduces jamming.
[0013] Preferably, the trapezoidal pusher has a moving groove at the top; multiple spring telescopic rods are fixedly connected inside the moving groove; a support plate is fixedly connected to the top of the spring telescopic rods; the wear-resistant roller is located on the support plate and is rotatably connected to the support plate. The above structure enables the paperboard to move more smoothly.
[0014] Preferably, an elastic sheet is fixed to the side wall of the trapezoidal pusher; the elastic sheet is arc-shaped, and the above structure allows the cardboard to fall off better, reducing the possibility of cardboard remaining on the trapezoidal pusher.
[0015] Preferably, a positioning block is fixedly connected to the side wall of the trapezoidal push block; a guide rod is fixedly connected between the pair of lifting seats; the positioning block and the guide rod are slidably connected. The above structure, combined with the stability of the trapezoidal push block during movement, also makes the movement of the trapezoidal push block smoother.
[0016] Preferably, the base is fixedly connected to a brake caster at its bottom; multiple brake casters are provided, and the above structure increases the convenience of palletizing operations.
[0017] The beneficial effects of this invention are as follows: 1. The automatic cardboard palletizing machine of the present invention, compared with the traditional top-down palletizing which requires the palletizer itself to have strong lifting capacity, stacks from bottom to top. As the cardboard is stacked higher and higher, it can still stack the cardboard normally without the need for high-level stacking, which is more convenient and saves costs.
[0018] 2. The automatic cardboard palletizing machine of the present invention transports cardboard to the base via a conveyor. Then, a hydraulic cylinder drives a pusher plate to move closer to the base, so that the cardboard falling down for palletizing can be pushed by the pusher plate to arrange the cardboard, making the cardboard stacking more neat and aligning, and improving the cleanliness of cardboard palletizing. Attached Figure Description
[0019] The invention will now be further described with reference to the accompanying drawings.
[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the hydraulic cylinder in this invention; Figure 3 This is a schematic diagram of the base structure in this invention; Figure 4 This is a schematic diagram of the trapezoidal pusher block in this invention; Figure 5This is a schematic diagram of the pressure plate in this invention; In the diagram: 1. Conveyor; 11. Base; 12. First chute; 13. First drive motor; 14. First drive screw; 15. First screw; 16. First scissor lift; 17. Lifting seat; 18. Second chute; 19. Second slider; 111. Second scissor lift; 112. Second drive motor; 113. Second drive screw; 114. Third chute; 115. Third slider; 116. Trapezoidal push block; 2. Positioning plate; 21. Hydraulic cylinder; 22. Push plate; 3. Telescopic plate; 31. Fixed plate; 32. Connecting rod; 33. Pressure plate; 4. Counterweight; 5. Ball bearing; 6. Wear-resistant roller; 7. Moving chute; 71. Support plate; 72. Spring telescopic rod; 8. Elastic sheet; 9. Positioning block; 91. Guide rod; 10. Brake caster. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0022] like Figures 1 to 4As shown in the embodiment of the present invention, an automatic cardboard palletizing machine includes a conveyor 1; a base 11 is provided at the end of the conveyor 1; a pair of first chutes 12 are symmetrically opened on the top of the base 11; a pair of first drive motors 13 are symmetrically fixed to the side wall of the conveyor 1; a first drive screw 14 is fixedly connected to the output end of the first drive motor 13; the end of the first drive screw 14 is rotatably connected to the inner side wall of the first chutes 12; a first screw 15 is connected to the middle of the first drive screw 14 through a screw-nut pair; the first screw 15 is located inside the first chutes 12 and is slidably connected; a first scissor bar 16 is hinged to the end of the first screw 15; a lifting seat 17 is rotatably connected to the end of the first scissor bar 16; a pair of second chutes 18 are symmetrically opened on the side wall of the lifting seat 17; the second chutes 18... The 8th section has a second slider 19 internally slidably connected; a second scissor bar 111 is rotatably connected to the side wall of the second slider 19; the second scissor bar 111 and the first scissor bar 16 are rotatably connected; the end of the second scissor bar 111 is rotatably connected to the inner side wall of the first slide groove 12; a pair of third slide grooves 114 are symmetrically opened on the top of the lifting seat 17; a second drive motor 112 is fixedly connected to the side wall of the lifting seat 17; a second drive screw 113 is fixedly connected to the output end of the second drive motor 112; the second drive screw 113 passes through the side wall of the lifting seat 17 and is rotatably connected to the lifting seat 17; the second drive screw 113 is a positive and negative thread screw; a pair of third sliders 115 are connected to the middle of the first drive motor 13 through a screw and nut pair; the third sliders 115 and the third slide grooves 114 are slidably connected.The top of the third slider 115 is fixed with a trapezoidal pusher 116. During operation, the cardboard is transported by the conveyor 1 and falls between the bases 11. A rack or similar device can be placed in the middle of the base 11 beforehand. When multiple cards are stacked together, the second drive motor 112 drives a pair of trapezoidal pushers 116 to move towards the center simultaneously under the action of the second drive screw 113. The ends of the trapezoidal pushers 116 are inserted into the gap between the cardboards. The inclined surfaces of the trapezoidal pushers 116 push the cardboard above towards both sides of the trapezoidal pushers 116. At this time, the cardboard above moves to the top of the trapezoidal pushers 116 and separates from the cardboard below. Then, the first drive motor 13 drives the first slide 12 to rotate, so that the second scissor bar 111 and the first scissor bar 16 cooperate to lift the lifting seat 17 as a whole. Block 116 moves the upper cardboard upwards, while the lower cardboard continues to be conveyed and stacked via conveyor 1. Then, the second drive motor 112 rotates in the opposite direction, causing a pair of trapezoidal push blocks 116 to move to both sides. At this time, the cardboard on the trapezoidal push blocks 116 falls downwards after the push blocks move away from each other, causing the lower cardboard to stack. Then, the second scissor bar 111 and the first scissor bar 16 move the lifting seat 17 downwards to a lower position. The above operation is repeated to lift the upper cardboard again and stack the lower cardboard. Compared to traditional top-down stacking, which requires the stacker to have strong lifting capabilities, this device stacks from bottom to top. Even as the cardboard piles higher, it can still be stacked normally without the need for high-level stacking, making it more convenient and cost-effective. This device is suitable for any automated warehouse.
[0023] like Figure 2 As shown, a positioning plate 2 is detachably fixed to the end of the base 11 by bolts; a hydraulic cylinder 21 is fixed to the side wall of the positioning plate 2; a push plate 22 is fixed to the output end of the hydraulic cylinder 21. During operation, after the cardboard is conveyed to the base 11 by the conveyor 1, the hydraulic cylinder 21 drives the push plate 22 to move closer to the base 11, so that the cardboard falling down for stacking can be pushed by the push plate 22 to arrange the cardboard, making the cardboard stacking more neat and aligning, and improving the cleanliness of the cardboard stacking.
[0024] like Figures 2 to 5 As shown, a pair of telescopic plates 3 are symmetrically fixed to the side wall of the lifting seat 17; a fixed plate 31 is fixed to the end of the telescopic plate 3; a connecting rod 32 is fixed to the bottom side wall of the fixed plate 31; and a pressure plate 33 is fixed to the end of the connecting rod 32. During operation, by setting pressure plates 33 on both sides, when the cardboard is lifted, the pressure plate 33 on the uppermost cardboard and the surface of the cardboard pressed down by the pressure plate 33 and the limiting position of the telescopic plate 3 ensure that the heavy cardboard is in a stable state during the lifting process, reducing the problem of cardboard slippage and increasing the stability of cardboard stacking.
[0025] like Figure 5 As shown, a counterweight 4 is fixedly connected to the top of the pressure plate 33; multiple counterweights 4 are provided on the pressure plate 33. During operation, the pressure of the pressure plate 33 on the cardboard is increased by using the counterweights 4, so that the pressure plate 33 has a better fixing effect on the cardboard and improves the fixing effect of the pressure plate 33 on the cardboard.
[0026] like Figure 5 As shown, a plurality of ball bearings 5 are rolled at the bottom of the pressure plate 33; the ball bearings 5 are arranged in an array on the pressure plate 33. During operation, when a pair of trapezoidal push blocks 116 move to both sides, the pressure plate 33 will move on the surface of the cardboard. By setting the ball bearings 5 between the cardboard and the pressure plate 33, the frictional resistance encountered by the cardboard during movement can be reduced, thereby reducing the problem of the cardboard at the top sliding off due to frictional resistance, and improving the stability and safety of cardboard stacking.
[0027] like Figures 2 to 4 As shown, multiple wear-resistant rollers 6 are installed on the trapezoidal push block 116. The wear-resistant rollers 6 are rotatable. During operation, by setting wear-resistant rollers 6 on the trapezoidal push block 116, the two sides of the cardboard can come into contact with the wear-resistant rollers 6 during the process of the cardboard being lifted by the trapezoidal push block 116, thereby reducing the friction between the cardboard and the trapezoidal push block 116, making the movement of the cardboard smoother and reducing jamming.
[0028] like Figures 2 to 4 As shown, the trapezoidal push block 116 has a moving groove 7 at its top; multiple spring telescopic rods 72 are fixedly connected inside the moving groove 7; a support plate 71 is fixedly connected to the top of the spring telescopic rods 72; the wear-resistant roller 6 is located on the support plate 71 and is rotatably connected to the support plate 71. During operation, by setting the support plate 71 and the spring telescopic rods 72, the wear-resistant roller 6 causes a protrusion on the surface of the trapezoidal push block 116. When the cardboard moves on the inclined plane, it will squeeze the wear-resistant roller 6, causing the support plate 71 to slide into the spring telescopic rod 72. At this time, the end face of the wear-resistant roller 6 is flush with the inclined plane of the trapezoidal push block 116, allowing the cardboard to move and rise better. When the cardboard moves to the top surface of the trapezoidal push block 116, the support plate 71 returns to the flush position under the elastic reset of the spring telescopic rod 72, providing support for the cardboard. This structure makes the movement of the cardboard smoother.
[0029] like Figures 2 to 4As shown, the trapezoidal pusher 116 has an elastic sheet 8 fixedly attached to its side wall. The elastic sheet 8 is arc-shaped. During operation, when the cardboard moves to the top of the trapezoidal pusher 116, it is elastically squeezed by the elastic sheets 8 on both sides to fix the cardboard and improve its stability. At the same time, when the trapezoidal pusher 116 moves to both sides, the elastic sheet 8 pushes the cardboard towards the middle under its own elastic restoring effect, so that the cardboard falls better and reduces the possibility of the cardboard remaining on the trapezoidal pusher 116.
[0030] like Figure 3 As shown, a positioning block 9 is fixedly connected to the side wall of the trapezoidal push block 116; a guide rod 91 is fixedly connected between a pair of lifting seats 17; the positioning block 9 and the guide rod 91 are slidably connected. During operation, the guide rod 91 supports the trapezoidal push block 116, increasing the stability of the trapezoidal push block 116 during movement and making the movement of the trapezoidal push block 116 smoother.
[0031] like Figure 1 As shown, a brake caster 10 is fixedly connected to the bottom of the base 11; multiple brake casters 10 are provided. During operation, by setting brake casters 10 at the bottom of the base 11, the base 11 can be moved arbitrarily, while the base 11 can also be fixed in a certain place, which increases the convenience of stacking work.
[0032] During operation, cardboard is transported by conveyor 1 and falls between bases 11. Shelves can be placed in the middle of bases 11 beforehand. When multiple cardboard pieces are stacked together, the second drive motor 112 drives a pair of trapezoidal push blocks 116 to move simultaneously towards the center under the action of the second drive screw 113. The ends of the trapezoidal push blocks 116 are inserted into the gap between the cardboard pieces. The inclined surfaces of the trapezoidal push blocks 116 push the upper cardboard pieces towards both sides of the trapezoidal push blocks 116. At this point, the upper cardboard pieces move to the top of the trapezoidal push blocks 116 and separate from the lower cardboard pieces. Then, the first drive motor 13 drives the first slide 12 to rotate, causing the second scissor bar 111 and the first scissor bar 16 to cooperate in lifting the lifting seat 17 as a whole. At this time, the trapezoidal push blocks 116... The upper cardboard moves upward, while the lower cardboard continues to be conveyed and stacked via conveyor 1. Then, the second drive motor 112 rotates in the opposite direction, causing a pair of trapezoidal pushers 116 to move to both sides. At this time, the cardboard on the trapezoidal pushers 116 will fall downward after the pushers move away from each other, causing the lower cardboard to stack. Then, the second scissor bar 111 and the first scissor bar 16 drive the lifting seat 17 to move downward to a lower position. The above operation is repeated to lift the upper cardboard again and stack the lower cardboard. Compared with the traditional top-down stacking which requires the stacker to have strong lifting capacity, this device stacks from bottom to top. As the cardboard is stacked higher and higher, it can still stack the cardboard normally without the need for high-level stacking, which is more convenient and saves costs.
[0033] After the cardboard is conveyed to the base 11 by the conveyor 1, the hydraulic cylinder 21 drives the push plate 22 to move closer to the base 11, so that the cardboard that falls down for stacking can be pushed by the push plate 22 to arrange the cardboard, making the cardboard stacking more neat and tidy, and improving the cleanliness of cardboard stacking.
[0034] By setting pressure plates 33 on both sides, when the cardboard is lifted, the pressure plate 33 on the top and the surface of the top cardboard, through the squeezing of the pressure plate 33 and the limiting of the telescopic plate 3, keep the heavy cardboard in a stable state during the lifting process, reduce the problem of cardboard slippage, and increase the stability of cardboard stacking.
[0035] By using counterweight 4 to increase the squeezing force of pressure plate 33 on cardboard, the fixing effect of pressure plate 33 on cardboard is improved.
[0036] When a pair of trapezoidal pushers 116 move to both sides, the pressure plate 33 moves on the surface of the cardboard. By setting the ball bearings 5 between the cardboard and the pressure plate 33, the frictional resistance experienced by the cardboard during movement can be reduced, thereby reducing the problem of the cardboard at the top sliding off due to frictional resistance, and improving the stability and safety of cardboard stacking.
[0037] By setting wear-resistant rollers 6 on trapezoidal push blocks 116, the two sides of the cardboard can come into contact with the wear-resistant rollers 6 during the process of the cardboard being lifted by the trapezoidal push blocks 116, thereby reducing the friction between the cardboard and the trapezoidal push blocks 116, making the movement of the cardboard smoother and reducing jamming.
[0038] By setting up the support plate 71 and the spring telescopic rod 72, the wear-resistant roller 6 causes a protrusion on the surface of the trapezoidal push block 116. When the cardboard moves on the inclined plane, it will squeeze the wear-resistant roller 6, causing the support plate 71 to slide into the spring telescopic rod 72. At this time, the end face of the wear-resistant roller 6 is flush with the inclined plane of the trapezoidal push block 116, allowing the cardboard to move and rise better. When the cardboard moves to the top surface of the trapezoidal push block 116, the support plate 71 returns to the flush position under the elastic reset of the spring telescopic rod 72, providing support for the cardboard. This structure makes the movement of the cardboard smoother.
[0039] When the cardboard moves to the top of the trapezoidal push block 116, it is elastically squeezed by the elastic sheets 8 on both sides, which fixes the cardboard and improves its stability. At the same time, when the trapezoidal push block 116 moves to both sides, the elastic sheets 8 push the cardboard towards the middle under their own elastic restoring effect, so that the cardboard falls better and reduces the possibility of the cardboard remaining on the trapezoidal push block 116.
[0040] By supporting the trapezoidal push block 116 with the guide rod 91, the stability of the trapezoidal push block 116 during movement is increased, and the movement of the trapezoidal push block 116 is also made smoother.
[0041] By installing brake casters 10 at the bottom of the base 11, the base 11 can be moved freely while also being fixed in one place, increasing the convenience of palletizing work.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic cardboard palletizing machine, comprising a conveyor (1); characterized in that: The conveyor (1) is provided with a base (11) at its end; a pair of first grooves (12) are symmetrically opened on the top of the base (11); a pair of first drive motors (13) are symmetrically fixed to the side wall of the conveyor (1); a first drive screw (14) is fixedly connected to the output end of the first drive motor (13); the end of the first drive screw (14) is rotatably connected to the inner side wall of the first groove (12); a first screw (15) is connected to the middle of the first drive screw (14) through a screw nut pair; the first screw (15) is located inside the first groove (12) and is slidably connected; a first scissor bar (16) is hinged to the end of the first screw (15); a lifting seat (17) is rotatably connected to the end of the first scissor bar (16); a pair of second grooves (18) are symmetrically opened on the side wall of the lifting seat (17); a second slider (19) is slidably connected inside the second groove (18); the second slider (19) is slidably connected to the side of the second slider (19). The wall is rotatably connected to a second scissor bar (111); the second scissor bar (111) and the first scissor bar (16) are rotatably connected; the end of the second scissor bar (111) is rotatably connected to the inner wall of the first slide groove (12); a pair of third slide grooves (114) are symmetrically opened on the top of the lifting seat (17); a second drive motor (112) is fixedly connected to the side wall of the lifting seat (17); a second drive screw (113) is fixedly connected to the output end of the second drive motor (112); the second drive screw (113) passes through the side wall of the lifting seat (17) and is rotatably connected to the lifting seat (17); the second drive screw (113) is a positive and negative thread screw; a pair of third sliders (115) are connected to the middle of the first drive motor (13) through a screw nut pair; the third sliders (115) and the third slide grooves (114) are slidably connected; a trapezoidal push block (116) is fixedly connected to the top of the third sliders (115).
2. The automatic cardboard palletizing machine according to claim 1, characterized in that: The base (11) is detachably fixed to a positioning plate (2) by bolts at its end; a hydraulic cylinder (21) is fixed to the side wall of the positioning plate (2); and a push plate (22) is fixed to the output end of the hydraulic cylinder (21).
3. The automatic cardboard palletizing machine according to claim 2, characterized in that: The lifting seat (17) has a pair of telescopic plates (3) symmetrically fixed to its side wall; a fixing plate (31) is fixed to the end of the telescopic plate (3); a connecting rod (32) is fixed to the bottom side wall of the fixing plate (31); and a pressure plate (33) is fixed to the end of the connecting rod (32).
4. The automatic cardboard palletizing machine according to claim 3, characterized in that: A counterweight (4) is fixedly connected to the top of the pressure plate (33); multiple counterweights (4) are provided on the pressure plate (33).
5. The automatic cardboard palletizing machine according to claim 4, characterized in that: The bottom of the pressure plate (33) is provided with multiple rolling balls (5); the rolling balls (5) are arranged in an array on the pressure plate (33).
6. The automatic cardboard palletizing machine according to claim 5, characterized in that: Multiple wear-resistant rollers (6) are installed on the trapezoidal push block (116); the wear-resistant rollers (6) are rotatable.
7. The automatic cardboard palletizing machine according to claim 6, characterized in that: The trapezoidal pusher (116) has a moving groove (7) at the top; a plurality of spring telescopic rods (72) are fixed inside the moving groove (7); a support plate (71) is fixed at the top of the spring telescopic rods (72); the wear-resistant roller (6) is located on the support plate (71) and is rotatably connected to the support plate (71).
8. The automatic cardboard palletizing machine according to claim 7, characterized in that: The trapezoidal pusher (116) has an elastic sheet (8) fixed to its side wall; the elastic sheet (8) is arc-shaped.
9. An automatic cardboard palletizing machine according to claim 8, characterized in that: The trapezoidal push block (116) has a positioning block (9) fixedly connected to its side wall; a guide rod (91) is fixedly connected between a pair of lifting seats (17); the positioning block (9) and the guide rod (91) are slidably connected.
10. An automatic cardboard palletizing machine according to claim 9, characterized in that: The base (11) has a brake caster (10) fixedly connected to its bottom; the brake caster (10) is provided in multiple manner.