Bundling mechanism for bundling machine

Abstract

The utility model relates to the technical field of paper bundling equipment, in particular to a bundling mechanism for a bundling machine, which comprises a rack, a paper stacking platform and a bundling platform arranged side by side with the paper stacking platform are arranged on the rack, and a paper overturning and conveying mechanism is arranged at one end of the paper stacking platform. A paper blocking base is movably arranged at the end, away from the paper overturning and conveying mechanism, of the paper stacking platform. The paper stacking platform is provided with a lifting assembly used for lifting a paper pile. The rack is provided with a pushing assembly used for pushing paper piles on the paper stacking platform to the bundling platform. A third air cylinder with a telescopic rod facing the side away from the paper blocking base is arranged on the pushing assembly, and a limiting plate used for limiting paper piles in the pushing process is fixedly arranged at the end of the telescopic rod of the third air cylinder. And under the action of the limiting plate, paper piles are limited in the pushing process, collapse of the paper piles is prevented, the success rate of subsequent paper pile bundling is increased, and paper is prevented from being damaged in the pushing process under the action of the lifting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of paper bundling equipment, in particular to a bundling mechanism for a bundling machine. Background Art

[0002] After the paper is cut through multiple processes, it needs to be packaged. Before packaging, a certain amount of paper is stacked together, and then the stacked paper pile is bundled to facilitate the subsequent packaging steps. After packaging is completed, it can be packed and shipped out of the warehouse. Among them, there is an existing platform for bundling paper as follows:

[0003] A Chinese patent document with publication number CN219948665U discloses a bundling platform of a paper bundling machine, which specifically discloses: it includes a stacking mechanism and a bundling mechanism, the stacking mechanism includes a stacking support plate and a paper stop seat, the bundling mechanism includes a bundling support plate for supporting papers to be bundled, the bundling support plate is installed with a first clamping plate and a second clamping plate, the stacked papers can be moved from the stacking support plate to the bundling support plate for clamping by the first clamping plate and the second clamping plate to be bundled; after the papers to be bundled are stacked by the paper stop seat of the stacking support plate, the stacked papers are pushed onto the bundling support plate, and after the papers are in place, the second clamping plate slides along the bundling support plate and continuously approaches the first clamping plate, so that the whole stack of papers on the bundling support plate can be clamped to prevent the papers from collapsing during bundling.

[0004] As can be seen from the above, the existing bundling platform first stacks the paper to be bundled through the paper stopper of the stacking support plate, and then pushes the paper to the bundling support plate for bundling. However, in the process of pushing the stacked paper, the paper is prone to collapse, thereby affecting the subsequent bundling efficiency; in addition, the friction between the bottom of the paper and the stacking support plate is too large, which may cause damage to the paper during the pushing process. Therefore, a bundling mechanism for a baler is provided to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a bundling mechanism for a baler in view of the deficiencies in the prior art, so as to solve the technical problem that stacked papers may collapse and be damaged during the pushing process.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A bundling mechanism for a bundling machine comprises a frame, a paper stacking platform and a bundling platform arranged side by side with the paper stacking platform are arranged on the frame, and a paper turning and conveying mechanism for continuously conveying paper to the paper stacking platform for stacking is arranged, the paper turning and conveying mechanism is arranged at one end of the paper stacking platform, and is characterized in that: a paper stopper is movably arranged at one end of the paper stacking platform away from the paper turning and conveying mechanism for preventing the paper from collapsing during the paper stacking process;

[0008] A lifting assembly for lifting the paper pile is installed on the paper stacking platform; a pushing assembly for pushing the paper pile on the paper stacking platform to the bundling platform is provided on the frame; the pushing assembly is provided with a third cylinder with a telescopic rod facing the side away from the paper stop seat, and a limit plate for limiting the paper pile during the pushing process is fixed at the end of the telescopic rod of the third cylinder.

[0009] Furthermore, a control component for driving the paper stopper to move and a plurality of traction modules for traction of the paper pile are provided at the bottom of the paper stacking platform. The traction modules are arranged side by side and move synchronously.

[0010] Furthermore, a plurality of horizontally arranged first rollers and a squeezing assembly for squeezing the paper pile are provided on the top surface of the bundling platform, and the axial direction of the first rollers is perpendicular to the pushing direction of the pushing assembly; a winding component for winding the binding belt around the paper pile and binding it is provided on the bundling platform.

[0011] Furthermore, the pushing assembly includes a fixed frame arranged on the frame, a second linear module arranged laterally is installed on the fixed frame, and the length direction of the second linear module is perpendicular to the movable direction of the paper stopper, a second slider is provided on the second linear module, and a pushing frame for pushing the paper stack to move is fixed on the second slider, and a third cylinder is arranged on the pushing frame; a second servo motor for driving the second slider to slide is installed on one end of the second linear module.

[0012] Furthermore, the pushing assembly includes a fixed frame arranged on the frame, a second linear module arranged laterally is installed on the fixed frame, and the length direction of the second linear module is perpendicular to the movable direction of the paper stopper, a second slider is provided on the second linear module, and a pushing frame for pushing the paper stack to move is fixed on the second slider, and a third cylinder is arranged on the pushing frame; a second servo motor for driving the second slider to slide is installed on one end of the second linear module.

[0013] Furthermore, the traction module includes a first roller and a second roller corresponding to the first roller, the second roller is arranged on the paper stacking platform and placed at the end of the paper stacking track, the first roller is arranged on the frame and placed at the initial end of the paper stacking track, and a traction belt for traction of the paper stack is wound around the first roller and the second roller, and the upper half of the traction belt is placed above the paper stacking platform; a driving component for driving the traction belt to move is installed at the bottom of the paper stacking platform.

[0014] Furthermore, the extrusion assembly includes a pair of first extrusion seats fixedly arranged on one end of the bundling platform, the first extrusion seats are arranged side by side, and a pair of second extrusion seats corresponding to the first extrusion seats are movably provided at the other end of the bundling platform, and the second extrusion seats can move in a direction close to or away from the first extrusion seats.

[0015] Furthermore, a fixed seat is provided on the bundling platform, and a sliding frame is slidably provided on the fixed seat, the sliding frame is fixedly arranged with a pair of second extrusion seats, and a second cylinder with a telescopic rod facing the second extrusion seat is also installed on the bundling platform, and the end of the telescopic rod of the second cylinder is fixedly arranged with the sliding frame.

[0016] Furthermore, a fourth cylinder with a telescopic rod facing the second extrusion seat is provided between the first extrusion seats arranged side by side, and a top block for pushing the bundled paper pile is provided at the end of the telescopic rod of the fourth cylinder.

[0017] Furthermore, a pair of fifth cylinders with telescopic rods arranged opposite to each other are provided on the paper stacking platform, and the fifth cylinders are respectively placed on both sides of the paper stacking track, and a push plate for arranging paper piles is fixedly provided on the end of the telescopic rod of each fifth cylinder.

[0018] The beneficial effects of the utility model are as follows: before the paper turning and conveying mechanism conveys the paper to the paper stacking platform, the paper stopper is first driven to move on the paper stacking platform in the direction close to the paper turning and conveying mechanism to move to a specified position, and then the paper turning and conveying mechanism is operated to continuously convey the paper to the paper stacking platform, and the paper is stacked in an upright posture, and the stacked paper pile is supported by the paper stopper to prevent the paper pile from collapsing during the stacking process;

[0019] When the paper stacking is completed, the lifting component is first operated to lift the paper pile to a certain height so that the bottom of the paper pile is separated from the traction belt and the paper stacking platform, and then the third cylinder is started to push the limit plate out, and then the pushing component is operated so that after the pushing component contacts the side of the paper pile, the limit plate is placed at the end of the paper pile, and then the third cylinder is started to drive the limit plate to reset to limit the paper pile, and finally the pushing component is continued to operate to push the paper pile to move. Under the action of the limit plate, the paper pile is limited during the pushing process to prevent the paper pile from collapsing, thereby improving the success rate of subsequent paper pile bundling; and, under the action of the lifting component, damage to the paper during the pushing process is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 It is a partial structural schematic diagram of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the pusher assembly of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the extrusion assembly of the utility model.

[0024] Figure 5 It is a structural schematic diagram of the lifting assembly of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the control component of the utility model.

[0026] Reference numerals include:

[0027] 4. Frame; 501. Paper stacking platform; 502. Bundling platform; 5021. First roller; 503. Paper stopper; 504. Control assembly; 5041. First linear module; 5042. First slider; 5043. First servo motor; 505. First roller; 506. Second roller; 507. Traction belt; 508. Driving component; 509. Lifting assembly; 5091. Fixed plate; 5092. First cylinder; 5093. Lifting frame; 5094. Second roller; 510. Extrusion assembly; 510 1. The first extrusion seat; 5102. The second extrusion seat; 5103. The fixed seat; 5104. The sliding frame; 5105. The second cylinder; 511. The winding component; 512. The pushing assembly; 5121. The fixed frame; 5122. The second linear module; 5123. The second slider; 5124. The second servo motor; 5125. The pushing frame; 5126. The third cylinder; 5127. The limit plate; 513. The fourth cylinder; 514. The top block; 515. The fifth cylinder; 516. The pushing plate; 6. The paper flipping and conveying mechanism. DETAILED DESCRIPTION

[0028] The following is a detailed description of a strapping mechanism for a baling machine according to the utility model with reference to the accompanying drawings.

[0029] like Figure 1-2As shown, an embodiment of a bundling mechanism for a bundling machine of the utility model includes a frame 4 for supporting the entire bundling mechanism, a paper stacking platform 501 and a bundling platform 502 arranged side by side with the paper stacking platform 501 are provided on the frame 4, and a paper turning and conveying mechanism 6 for continuously conveying paper to the paper stacking platform 501 for stacking is provided (the specific structure of the paper turning and conveying mechanism 6 is detailed in patent number CN202320784425.0), the paper conveyed to the paper stacking platform 501 is placed in an upright posture and stacked, the paper turning and conveying mechanism 6 is placed at one end of the paper stacking platform 501, and a paper stopper for preventing the collapse of the paper during the stacking process is movably provided at the end of the paper stacking platform 501 away from the paper turning and conveying mechanism 6 Seat 503; before the paper flipping and conveying mechanism 6 conveys the paper to the paper stacking platform 501, it first drives the paper blocking seat 503 to move on the paper stacking platform 501 towards the direction close to the paper flipping and conveying mechanism 6 to move to the specified position, and then the paper flipping and conveying mechanism 6 can be operated to continuously convey the paper to the paper stacking platform 501, and the paper is stacked in an upright posture, and the stacked paper pile is supported by the paper blocking seat 503 to prevent the paper pile from collapsing during the stacking process; in addition, the paper pile gradually becomes longer during continuous conveying, and in the process of becoming longer, the paper blocking seat 503 is driven to move at a uniform speed towards the direction away from the paper flipping and conveying mechanism 6, so that the paper pile is always supported, and the movement trajectory of the paper blocking seat 503 is also the trajectory of paper stacking.

[0030] Furthermore, a control component 504 for driving the paper stopper 503 to move is provided at the bottom of the paper stacking platform 501. By operating the control component 504, the distance between the paper stopper 503 and the paper turning and conveying mechanism 6 is controlled, thereby improving the paper stacking effect. Among them, a plurality of traction modules for pulling the paper pile are also provided on the paper stacking platform 501. The traction modules are arranged side by side and move synchronously. When the paper is conveyed to the paper stacking platform 501 for stacking, the bottom of the paper pile contacts the top of the traction module, and the traction speed of the traction component is the same as the moving speed of the paper stopper 503. During the continuous stacking process, the paper is pulled by the traction module in a direction away from the paper turning and conveying mechanism 6, thereby reducing the friction between the bottom of the paper pile and the top of the paper stacking platform 501, and preventing the bottom of the paper pile from being damaged during the stacking process.

[0031] The traction module includes a first roller 505 and a second roller 506 corresponding to the first roller 505, the second roller 506 is arranged on the paper stacking platform 501 and is placed at the end of the paper stacking track, the first roller 505 is arranged on the frame 4 and is placed at the initial end of the paper stacking track, and a traction belt 507 for traction of the paper pile is wound around the first roller 505 and the second roller 506, and the upper half of the traction belt 507 is placed above the paper stacking platform 501. When the paper is transported to the paper stacking platform 501 for stacking, the bottom of the paper pile contacts the outer side of the upper half of the traction belt 507; in addition, a driving component 508 for driving the traction belt 507 to move is installed at the bottom of the paper stacking platform 501. During the stacking process, the driving component 508 is operated to drive the traction belt 507 to move to achieve a traction effect on the paper pile.

[0032] In order to bundle the paper pile, a pushing assembly 512 for pushing the paper pile on the paper stacking platform 501 to the bundling platform 502 is further provided on the frame 4. When the paper stacking is completed, the paper stopper 503 stops moving, and then the pushing assembly 512 is operated to push the paper pile from the paper stacking platform 501 to the bundling platform 502. However, in order to prevent the paper pile from collapsing during the pushing process, a third cylinder 5126 with a telescopic rod facing the side away from the paper stopper 503 is provided on the pushing assembly 512, and a limiting plate 5127 for limiting the paper pile during the pushing process is fixed on the end of the telescopic rod of the third cylinder 5126. Before pushing the paper pile, the pushing assembly 512 first starts the third cylinder 5126 to push out the limit plate 5127, and then runs the pushing assembly 512 so that after the pushing assembly 512 contacts the side of the paper pile, the limit plate 5127 is placed at the end of the paper pile, and then the third cylinder 5126 is started to drive the limit plate 5127 to reset to limit the paper pile, and finally the pushing assembly 512 continues to run, thereby pushing the paper pile to move. Under the action of the limit plate 5127, the paper pile is limited during the pushing process, thereby improving the success rate of subsequent paper pile bundling.

[0033] A plurality of first rollers 5021 arranged horizontally are provided on the top surface of the bundling platform 502, and the axial direction of the first rollers 5021 is perpendicular to the pushing direction of the pushing assembly 512; under the action of the first rollers 5021, the paper pile is pushed to the bundling position on the bundling platform 502, thereby reducing the friction between the bundling platform 502 and the paper pile. A winding component 511 for winding the binding belt around the paper pile and binding it is also provided on the bundling platform 502. After the paper pile is brought to the bundling position on the bundling platform 502, the winding component 511 can be operated for bundling. In order to improve the bundling effect, a squeezing assembly 510 for squeezing the paper pile is also provided on the bundling platform 502. Before bundling, the paper pile is first squeezed by the squeezing assembly 510, thereby squeezing out the air in the gap between the papers, so as to prevent the paper pile from being loose after bundling. In addition, when the paper pile is being pushed, the friction between the bottom of the paper pile and the traction belt 507 is relatively large, which can easily cause wear on the bottom of the paper. To solve this problem, a lifting component 509 for lifting the paper pile is installed on the paper stacking platform 501. Before pushing the paper pile, the lifting component 509 is first operated to lift the paper pile to a certain height so that the bottom of the paper pile is separated from the traction belt 507 and the paper stacking platform 501, and then the pushing component 512 is operated to push the paper pile to move to prevent damage to the paper.

[0034] like Figure 3 As shown, the pushing assembly 512 includes a fixed frame 5121 arranged on the frame 4, a second linear module 5122 arranged laterally is installed on the fixed frame 5121, and the length direction of the second linear module 5122 is perpendicular to the moving direction of the paper stopper 503, a second slider 5123 is provided on the second linear module 5122, and a pushing frame 5125 for pushing the paper pile to move is fixed on the second slider 5123, and a third cylinder 5126 is provided on the pushing frame 5125; when the paper pile is stacked and lifted by the lifting assembly 509, the second slider 5123 is driven to slide on the second linear module 5122 in the direction close to the bundling platform 502, so as to move with the pushing frame 5125 to realize the pushing process. In order to realize automatic material pushing, a second servo motor 5124 for driving the second slider 5123 to slide is installed on one end of the second linear module 5122. The second servo motor 5124 drives the second slider 5123 to move automatically on the second linear module 5122, thereby realizing automatic material pushing processing.

[0035] like Figure 4As shown, the squeezing assembly 510 includes a pair of first squeezing seats 5101 fixedly provided on one end of the bundling platform 502, the first squeezing seats 5101 are arranged side by side, and a pair of second squeezing seats 5102 corresponding to the first squeezing seats 5101 are movably provided at the other end of the bundling platform 502, the second squeezing seats 5102 can move in a direction close to or away from the first squeezing seats 5101, so as to squeeze the paper pile to be bundled; and the first squeezing seat 5101 and the paper stopper 503 placed at the end of the paper stacking track are on the same straight line (that is, the track line for pushing the paper pile to move). In order to control the automatic movement of the second extrusion seat 5102, a fixed seat 5103 is provided on the bundling platform 502, and a sliding frame 5104 is slidably provided on the fixed seat 5103, the sliding frame 5104 is fixedly arranged with a pair of second extrusion seats 5102, and a second cylinder 5105 with a telescopic rod facing the second extrusion seat 5102 is also installed on the bundling platform 502, and the end of the telescopic rod of the second cylinder 5105 is fixedly arranged with the sliding frame 5104; the second cylinder 5105 is used to push the sliding frame 5104 to slide on the fixed seat 5103, so that the second extrusion seat 5102 can be moved in a direction close to or away from the first extrusion seat 5101. In addition, a fourth cylinder 513 with a telescopic rod facing the second extrusion seat 5102 is provided between the first extrusion seats 5101 arranged side by side, and a top block 514 for pushing the bundled paper pile is provided at the end of the telescopic rod of the fourth cylinder 513; after the winding belt component 511 completes bundling the paper pile, the fourth cylinder 513 is started, and the top block 514 is used to push the bundled paper pile to move a distance in the direction close to the second extrusion seat 5102, so that the end of the paper pile is away from the first extrusion seat 5101, and then the paper pile is removed from the bundling platform 502. Under the action of the fourth cylinder 513 and the top block 514, the end of the paper pile does not contact the first extrusion seat 5101, so as to prevent the first extrusion seat 5101 from blocking the paper pile and causing it to deviate during the material retrieval process.

[0036] like Figure 5As shown, the lifting assembly 509 includes a fixed plate 5091 disposed in the frame 4, a first cylinder 5092 with a telescopic rod facing upward is disposed on the fixed plate 5091, and a first lifting frame 5093 is fixedly disposed on the end of the telescopic rod of the first cylinder 5092, and the first lifting frame 5093 is pushed up and down by the first cylinder 5092; in addition, a plurality of second rollers 5094 arranged in parallel are disposed on the lifting frame 5093, and the length direction of each second roller 5094 is consistent with the moving direction of the paper stopper 503. After the first cylinder 5092 pushes the first lifting frame 5093 to move upward by a certain distance, the stacked paper pile can be lifted, and the second roller 5094 contacts the bottom of the paper pile, so that the bottom of the paper pile is separated from the traction belt 507 and the paper stacking platform 501, and finally the pushing frame 5125 pushes the paper pile to move, and under the action of the second roller 5094, the friction between the first lifting frame 5093 and the bottom of the paper pile is reduced.

[0037] like Figure 6 As shown, the control assembly 504 includes a first linear module 5041 installed at the bottom of the paper stacking platform 501, the length direction of the first linear module 5041 is consistent with the traction direction of the traction belt 507, a first slider 5042 is provided on the first linear module 5041, and the first slider 5042 is fixedly arranged with the paper stopper 503, under the action of the first slider 5042 and the first linear module 5041, the paper stopper 503 moves on the paper stacking platform 501 in the direction of approaching or moving away from the paper turning and conveying mechanism 6. In addition, a first servo motor 5043 for driving the first slider 5042 to slide is installed at one end of the first linear module 5041, and the first slider 5042 is driven to slide by the first servo motor 5043 to realize the automatic sliding of the paper stopper 503 on the paper stacking platform 501, so as to realize the paper stopper 503 to automatically slide on the paper stacking platform 501, so as to realize the paper in the stacking process to be blocked at all times and prevent the paper pile from collapsing. In addition, a fifth cylinder 515 with a pair of telescopic rods arranged opposite to each other is provided on the paper stacking platform 501, and the fifth cylinders 515 are respectively placed on both sides of the paper stacking track, and a push plate 516 for arranging the paper pile is fixedly provided on the end of the telescopic rod of each fifth cylinder 515. When the paper is stacked in an upright posture, the telescopic rod of the fifth cylinder 515 is continuously extended and retracted to drive the push plate 516 to continuously beat the paper in the stacking process, thereby arranging the paper pile, making the stacking more neat, and improving the paper stacking efficiency.

[0038] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A bundling mechanism for a bundling machine, comprising a frame (4), a paper stacking platform (501) and a bundling platform (502) arranged side by side with the paper stacking platform (501) being arranged on the frame (4), and a paper turning and conveying mechanism (6) for continuously conveying paper to the paper stacking platform (501) for stacking, wherein the paper turning and conveying mechanism (6) is arranged at one end of the paper stacking platform (501), and is characterized in that: A paper stopper (503) is movably provided on one end of the paper stacking platform (501) away from the paper turning and conveying mechanism (6) for preventing the paper from collapsing during the paper stacking process; A lifting assembly (509) for lifting a paper pile is installed on the paper stacking platform (501); a pushing assembly (512) for pushing the paper pile on the paper stacking platform (501) to the bundling platform (502) is installed on the frame (4); a third cylinder (5126) with a telescopic rod facing a side away from the paper stopper (503) is provided on the pushing assembly (512), and a limiting plate (5127) for limiting the paper pile during the pushing process is fixedly provided at the end of the telescopic rod of the third cylinder (5126).

2. A strapping mechanism for a baling machine according to claim 1, characterized in that: A control component (504) for driving the paper stopper (503) to move and a plurality of traction modules for traction of the paper pile are arranged at the bottom of the paper stacking platform (501). The traction modules are arranged side by side and move synchronously.

3. A strapping mechanism for a baling machine according to claim 1, characterized in that: A plurality of horizontally arranged first rollers (5021) and a squeezing assembly (510) for squeezing a paper pile are provided on the top surface of the bundling platform (502), and the axial direction of the first rollers (5021) is perpendicular to the pushing direction of the pushing assembly (512); and a belt winding component (511) for winding a binding belt around the paper pile and binding it is provided on the bundling platform (502).

4. A strapping mechanism for a baling machine according to claim 1, characterized in that: The lifting assembly (509) includes a fixed plate (5091) arranged in a frame (4); a telescopic rod is provided on the fixed plate (5091) and is arranged toward a first cylinder (5092); and a first lifting frame (5093) is fixedly provided on the end of the screw rod of the first cylinder (5092); and a plurality of second rollers (5094) arranged in parallel are provided on the lifting frame (5093), and the length direction of each second roller (5094) is consistent with the moving direction of the paper stopper (503).

5. The strapping mechanism for a baler according to claim 1, characterized in that: The pusher assembly (512) comprises a fixed frame (5121) arranged on the frame (4); a second linear module (5122) arranged transversely is mounted on the fixed frame (5121); the length direction of the second linear module (5122) is perpendicular to the moving direction of the paper stopper (503); a second slider (5123) is mounted on the second linear module (5122); a pusher frame (5125) for pushing the paper pile to move is fixedly mounted on the second slider (5123); a third cylinder (5126) is mounted on the pusher frame (5125); and a second servo motor (5124) for driving the second slider (5123) to slide is mounted on one end of the second linear module (5122).

6. A strapping mechanism for a baling machine according to claim 2, characterized in that: The traction module comprises a first roller (505) and a second roller (506) corresponding to the first roller (505); the second roller (506) is arranged on a paper stacking platform (501) and is located at the end of a paper stacking track; the first roller (505) is arranged on a frame (4) and is located at the beginning of the paper stacking track; a traction belt (507) for traction of a paper pile is wound around the first roller (505) and the second roller (506); the upper half of the traction belt (507) is arranged above the paper stacking platform (501); and a driving component (508) for driving the traction belt (507) to move is arranged at the bottom of the paper stacking platform (501).

7. The strapping mechanism for a baler according to claim 3, characterized in that: The extrusion assembly (510) comprises a pair of first extrusion seats (5101) fixedly arranged on one end of the bundling platform (502), the first extrusion seats (5101) being arranged side by side, and a pair of second extrusion seats (5102) corresponding to the first extrusion seats (5101) being movably arranged at the other end of the bundling platform (502), the second extrusion seats (5102) being movable in a direction approaching or moving away from the first extrusion seats (5101).

8. A strapping mechanism for a baling machine according to claim 7, characterized in that: A fixed seat (5103) is provided on the bundling platform (502), and a sliding frame (5104) is slidably provided on the fixed seat (5103), and the sliding frame (5104) is fixedly arranged with a pair of second extrusion seats (5102). A second cylinder (5105) with a telescopic rod facing the second extrusion seat (5102) is also installed on the bundling platform (502), and the end of the telescopic rod of the second cylinder (5105) is fixedly arranged with the sliding frame (5104).

9. The strapping mechanism for a baler according to claim 7, characterized in that: A fourth cylinder (513) with a telescopic rod facing the second extrusion seat (5102) is provided between the first extrusion seats (5101) arranged side by side, and a top block (514) for pushing the bundled paper pile is provided at the end of the telescopic rod of the fourth cylinder (513).

10. The strapping mechanism for a baler according to claim 1, characterized in that: A pair of fifth cylinders (515) with telescopic rods arranged opposite to each other are provided on the paper stacking platform (501), and the fifth cylinders (515) are respectively placed on both sides of the paper stacking track, and a push plate (516) for arranging paper piles is fixedly provided on the end of the telescopic rod of each fifth cylinder (515).

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