Paper product leatheroid pressing device and using method thereof

Abstract

The invention discloses a paper product leatheroid pressing device and a using method thereof.The paper product leatheroid pressing device comprises a workbench, a storage frame is fixedly installed at the end of the workbench, and paper product leatheroid is placed in the storage frame; the upper surface of the paper product leatheroid is subjected to creasing operation and conveying operation through rotation of the creasing ring, meanwhile, the creasing semi-ring ascends, the creasing semi-ring carries out creasing operation on the lower surface of the paper product leatheroid, creasing operation on the two sides of the paper product leatheroid is achieved, the problem that the paper product leatheroid is damaged due to rotation in the assembling process is solved, and the production efficiency of the paper product leatheroid is improved. The first rotating rod is driven by the driving motor to rotate, the indentation ring and the rotating disc are synchronously driven to rotate, automatic feeding of paper leathers of paper products can be achieved, meanwhile, the indentation ring can be controlled to rotate, indentation and conveying operation of the paper leathers of the paper products can be achieved at the same time, the output point of the device is lowered, the energy utilization rate is increased, and the device is convenient to control.

Description

Technical Field

[0001] The invention relates to the technical field of paper product paperboard processing, in particular to a paper product paperboard pressing device and a use method thereof. Background Art

[0002] Paper products usually refer to corrugated cardboard, which is a cardboard with a multi-layer structure, with three, five or seven layers being the most common. This type of cardboard is often used for express packaging, industrial packaging, kindergarten handicrafts and many other purposes because of its certain thickness and hardness.

[0003] When processing corrugated cardboard, it is generally necessary to perform a creasing operation on the corrugated cardboard to process a bendable line for assembling corrugated boxes. In the prior art, when performing a light creasing operation on the corrugated cardboard, sheets of corrugated cardboard are generally placed on a creasing machine manually, and the creasing ring on the creasing machine is rotated to creasing and convey the corrugated cardboard. However, the existing creasing machine only embosses a creasing line on the corrugated cardboard at the upper part of the creasing machine and above the corrugated cardboard. When assembling the corrugated cardboard, the corrugated cardboard on the back of the creasing will be damaged by rotation when rotating toward the creasing position, affecting the production efficiency of the corrugated box. At the same time, when loading the corrugated cardboard, people need to stick the sheets of corrugated cardboard to one side of a positioning plate used to position the corrugated cardboard to determine the creasing position. The operation is cumbersome. At the same time, the loading operation of the corrugated cardboard sheets is time-consuming and labor-intensive, which increases the labor intensity of the workers. Summary of the invention

[0004] The object of the present invention is to provide a paper product paperboard pressing device and a method of using the same to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a paper product cardboard pressing device and a method of using the same, a paper product cardboard pressing device comprising a workbench, a storage frame is fixedly installed at the end of the workbench, paper product cardboard is placed inside the storage frame, a through hole is opened at the bottom of one side of the storage frame for the paper product cardboard to pass through, a push block for intermittently pushing the paper product cardboard is slidably installed in the middle of one side of the workbench close to the storage frame, a fixed block is symmetrically fixedly installed in the middle of the workbench, a first rotating rod is rotatably installed between the two fixed blocks through a bearing, an indentation ring is fixedly installed in the middle of the first rotating rod corresponding to the indentation of the paper product cardboard, an indentation half ring is installed in the middle of the workbench corresponding to the position of the indentation ring, and the indentation half ring can be raised and lowered.

[0006] As a further preferred embodiment of the present technical solution, a turntable is rotatably installed on the middle part of the lower surface of the workbench through an axle pin, a limit rod is symmetrically fixedly installed on the middle part of one end of the workbench close to the storage frame, a moving block is slidably installed between the two limit rods, a limit hole is opened in the moving block corresponding to the position of the limit rod, the limit hole is slidably connected to the moving block, the push block is installed on the top of the moving block, and a connecting rod is rotatably installed on the bottom of the moving block through an axle pin, and the end of the connecting rod away from the moving block is eccentrically rotatably connected to the lower surface of the turntable through the axle pin.

[0007] As a further preferred embodiment of the present technical solution, a driving motor is fixedly installed on one side of one of the fixed blocks, and the output end of the driving motor is fixedly connected to the first rotating rod, and a first bevel gear is fixedly installed on the end of the first rotating rod away from the driving motor, and a mounting block is fixedly installed on the side of the workbench close to the first bevel gear, and a second rotating rod is rotatably installed on the middle part of the mounting block through a bearing, and a second bevel gear is fixedly installed on the top end of the second rotating rod, and the second bevel gear is meshingly connected with the first bevel gear, and a driving gear is fixedly installed on the bottom end of the second rotating rod, and a driven gear is fixedly installed on the outer side of the turntable, and the driven gear is meshingly connected with the driving gear.

[0008] As a further preferred embodiment of the present technical solution, a first sliding hole is symmetrically opened in the middle of the moving block, a first sliding rod is slidably installed inside the first sliding hole, the tops of the two first sliding rods are fixedly connected to the push block, a first return spring is sleeved on the outer side of the top end of the first sliding rod, one end of the first return spring is fixedly connected to the moving block, the other end of the first return spring is fixedly connected to the push block, and an oblique angle is opened at the top corner of one side of the push block.

[0009] As a further preferred embodiment of the present technical solution, a U-shaped frame is fixedly installed on one side of the top of the moving block, and lifting grooves are provided on both sides of the U-shaped frame. A mounting plate is fixedly installed at the position of the indentation ring in the middle of the workbench, and a second sliding hole is provided in the middle of the mounting plate. A second sliding rod is slidably installed inside the second sliding hole, and the indentation half ring is fixedly installed on the top of the second sliding rod. A second return spring is sleeved on the outer side of the top end of the second sliding rod, one end of the second return spring is fixedly connected to the mounting plate, and the other end of the second return spring is fixedly connected to the indentation half ring, and the bottom end of the second sliding rod is provided with a rounded corner.

[0010] As a further preferred embodiment of the present technical solution, sliding grooves are symmetrically provided on the inner walls at both ends of the storage frame, a slide plate is slidably installed between the two slide grooves, and a counterweight block is fixedly installed in the middle of the upper surface of the slide plate.

[0011] As a further preferred embodiment of the technical solution, the present invention also includes a method for using the above-mentioned paper product paperboard pressing device, comprising the following steps:

[0012] S1, placing a plurality of stacked paper products and paperboards in a storage frame, and then installing a slide plate in a slide slot, and pressing the stacked paper products and paperboards downward by the gravity of a counterweight block;

[0013] S2, the first rotating rod is driven to rotate by the driving motor, which will drive the indentation ring and the first bevel gear to rotate, and the second rotating rod is driven to rotate by the meshing of the second bevel gear and the first bevel gear, thereby controlling the rotation of the driving gear, and the meshing of the driven gear and the driving gear will drive the rotating disk to rotate, and the connection between the rotating disk and the moving block by the connecting rod will drive the moving block to slide along the outer side of the limit rod, and the push block will push the bottom paper product skin to pass the paper product skin through the perforation and move it to the position of the indentation ring, and the upper surface of the paper product skin will be indented and conveyed by the rotation of the indentation ring;

[0014] S3, when the paper product cardboard reaches the position of the indentation ring, at this time, the end of the U-shaped frame connected to the moving block will also reach the position of the indentation half ring. As the moving block continues to move, the jacking groove on the U-shaped frame will squeeze the rounded corner at the bottom end of the second slide rod to drive the second slide rod to slide upward inside the second slide hole. At this time, the second return spring is in an extended state, and the indentation half ring will perform an indentation operation on the lower surface of the paper product cardboard;

[0015] S4. As the paper product skin moves out of the indentation area, the rotation of the turntable will drive the moving block to slide in the opposite direction along the outer side of the limit rod, and the push block will move to a position close to the perforation on the storage frame. As the push block moves, the paper product skin at the bottom will squeeze the bevel on the push block. At this time, the first slide bar connected to the push block will be driven to slide down inside the first slide hole. At this time, the second return spring is in a compressed state, and the push block will move in contact with the lower surface of the paper product skin at the bottom, and finally move to the other side of the paper product skin. The push of the second return spring on the push block will drive the push block to rise, and one side of the push block will be in contact with one side of the paper product skin at the bottom, thereby realizing uninterrupted feeding of the paper product skin.

[0016] The present invention provides a paper product paperboard pressing device and a method for using the same, which have the following beneficial effects:

[0017] (1) The present invention controls the push block to intermittently reciprocate, which drives the paper product skin to intermittently move to the position of the indentation ring. The indentation ring rotates to indent and convey the upper surface of the paper product skin. At the same time, the indentation half ring rises, and the indentation half ring indents the lower surface of the paper product skin, thereby achieving indentation on both sides of the paper product skin, thereby preventing the paper product skin from being damaged by rotation during assembly.

[0018] (2) The present invention drives the first rotating rod to rotate by driving the motor, which will synchronously drive the creasing ring and the rotating disk to rotate. The push block will push the bottom paper product skin to pass the paper product skin through the perforation and move it to the position of the creasing ring, thereby realizing automatic feeding of the paper product skin. At the same time, the creasing ring can be controlled to rotate, and the creasing and conveying operations of the paper product skin can be realized at the same time, thereby reducing the output point of the device, improving the utilization rate of energy, and facilitating the control of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the storage frame of the present invention;

[0021] Figure 3 It is one of the partial structural schematic diagrams of the present invention;

[0022] Figure 4 It is a schematic diagram of the partial explosion structure of the present invention;

[0023] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0024] Figure 6 It is one of the partial cross-sectional structural schematic diagrams of the present invention;

[0025] Figure 7 This is the second schematic diagram of the partial structure of the present invention;

[0026] Figure 8 This is the second partial cross-sectional structural schematic diagram of the present invention;

[0027] Fig. 9 for Figure 8 Enlarged view of point B

[0028] In the figure: 1. workbench; 2. storage frame; 3. perforation; 4. push block; 5. fixed block; 6. first rotating rod; 7. indentation ring; 8. indentation half ring; 9. drive motor; 10. first bevel gear; 11. mounting block; 12. second rotating rod; 13. second bevel gear; 14. driving gear; 15. turntable; 16. driven gear; 17. limit rod; 18. moving block; 19. limit hole; 20. connecting rod; 21. first sliding hole; 22. first sliding rod; 23. first return spring; 24. bevel; 25. U-shaped frame; 26. lifting groove; 27. mounting plate; 28. second sliding hole; 29. ​​second sliding rod; 30. second return spring; 31. fillet; 32. slide groove; 33. slide plate; 34. counterweight block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] The present invention provides a technical solution: Figures 1 to 9 As shown, in this embodiment, a paper product cardboard pressing device includes a workbench 1, a storage frame 2 is fixedly installed at the end of the workbench 1, and a paper product cardboard is placed inside the storage frame 2. A through hole 3 for the paper product cardboard to pass through is opened at the bottom of one side of the storage frame 2. A push block 4 for intermittently pushing the paper product cardboard is slidably installed in the middle of one side of the workbench 1 close to the storage frame 2. A fixed block 5 is symmetrically fixedly installed in the middle of the workbench 1. A first rotating rod 6 is rotatably installed between the two fixed blocks 5 through a bearing. The middle of the first rotating rod 6 is fixed corresponding to the indentation of the paper product cardboard. A creasing ring 7 is fixedly installed, and a creasing half ring 8 is installed at the position of the creasing ring 7 in the middle of the workbench 1. The creasing half ring 8 can be raised and lowered. When the device is in operation, the push block 4 is controlled to move back and forth intermittently, which will drive the paper product skin to move intermittently to the position of the creasing ring 7. The upper surface of the paper product skin will be creasingly and conveyed by the rotation of the creasing ring 7. At the same time, the creasing half ring 8 will also rise, and the creasing half ring 8 will be creasing the lower surface of the paper product skin, so as to realize the creasing operation on both sides of the paper product skin, thereby preventing the paper product skin from being damaged by rotation during assembly.

[0031] like Figures 1 to 9 As shown, a turntable 15 is rotatably installed on the middle part of the lower surface of the workbench 1 through an axle pin, a limit rod 17 is symmetrically fixedly installed on the middle part of one end of the workbench 1 close to the storage frame 2, a moving block 18 is slidably installed between the two limit rods 17, and a limit hole 19 is provided in the moving block 18 corresponding to the position of the limit rod 17, and the limit hole 19 is slidably connected to the moving block 18, the push block 4 is installed on the top of the moving block 18, and a connecting rod 20 is rotatably installed on the bottom of the moving block 18 through an axle pin, and the end of the connecting rod 20 away from the moving block 18 is eccentrically rotatably connected to the lower surface of the turntable 15 through an axle pin.

[0032] By controlling the rotation of the turntable 15, the connection between the turntable 15 and the moving block 18 through the connecting rod 20 will drive the moving block 18 to slide back and forth along the outer side of the limit rod 17, and the push block 4 will push the bottom paper product cardboard to pass the paper product cardboard through the perforation 3 and move it to the position of the indentation ring 7, thereby realizing automatic feeding of the paper product cardboard.

[0033] like Figures 1 to 9As shown, a driving motor 9 is fixedly installed on one side of one of the fixed blocks 5, and the output end of the driving motor 9 is fixedly connected to the first rotating rod 6, and a first bevel gear 10 is fixedly installed on the end of the first rotating rod 6 away from the driving motor 9, and a mounting block 11 is fixedly installed on the side of the workbench 1 close to the first bevel gear 10, and a second rotating rod 12 is rotatably installed on the middle part of the mounting block 11 through a bearing, and a second bevel gear 13 is fixedly installed on the top end of the second rotating rod 12, and the second bevel gear 13 is meshingly connected with the first bevel gear 10, and a driving gear 14 is fixedly installed on the bottom end of the second rotating rod 12, and a driven gear 16 is fixedly installed on the outer side of the rotating disk 15, and the driven gear 16 is meshingly connected with the driving gear 14.

[0034] The first rotating rod 6 is driven to rotate by the driving motor 9, which will drive the indentation ring 7 and the first bevel gear 10 to rotate. The meshing of the second bevel gear 13 and the first bevel gear 10 will drive the second rotating rod 12 to rotate, thereby controlling the rotation of the driving gear 14. The meshing of the driven gear 16 and the driving gear 14 will drive the turntable 15 to rotate. When the paper product skin is moved to the position of the indentation ring 7, not only the paper product skin can be automatically loaded, but also the rotation of the indentation ring 7 can be controlled, and the indentation and conveying operations of the paper product skin can be realized at the same time, thereby reducing the output point of the device, improving the utilization rate of energy, and facilitating the control of the device.

[0035] like Figures 1 to 9 As shown, a first sliding hole 21 is symmetrically provided in the middle of the moving block 18, a first sliding rod 22 is slidably installed inside the first sliding hole 21, the tops of the two first sliding rods 22 are fixedly connected to the push block 4, a first return spring 23 is sleeved on the outer side of the top end of the first sliding rod 22, one end of the first return spring 23 is fixedly connected to the moving block 18, and the other end of the first return spring 23 is fixedly connected to the push block 4, and a bevel 24 is provided at one side top corner of the push block 4.

[0036] As the turntable 15 rotates, the moving block 18 will be driven to slide in the opposite direction along the outer side of the limit rod 17. As the push block 4 moves, the lowest paper product skin will squeeze the bevel 24 on the push block 4. At this time, the first slide bar 22 connected to the push block 4 will be driven to slide down inside the first slide hole 21. At this time, the second return spring 30 is in a compressed state, and the push block 4 will move in contact with the lower surface of the lowest paper product skin, and finally move to the other side of the paper product skin. Under the push of the second return spring 30 on the push block 4, the push block 4 will be driven to rise, and one side of the push block 4 will be in contact with one side of the lowest paper product skin to prevent the paper product skin from blocking the push block 4 when it is reset.

[0037] like Figures 1 to 9As shown, a U-shaped frame 25 is fixedly installed on one side of the top of the moving block 18, and lifting grooves 26 are provided on both sides of the U-shaped frame 25. A mounting plate 27 is fixedly installed at the position of the indentation ring 7 in the middle of the workbench 1, and a second sliding hole 28 is provided in the middle of the mounting plate 27. A second sliding rod 29 is slidably installed inside the second sliding hole 28. The indentation half ring 8 is fixedly installed on the top of the second sliding rod 29, and a second return spring 30 is sleeved on the outer side of the top of the second sliding rod 29. One end of the second return spring 30 is fixedly connected to the mounting plate 27, and the other end of the second return spring 30 is fixedly connected to the indentation half ring 8. The bottom end of the second sliding rod 29 is provided with a rounded corner 31.

[0038] When the paper product cardboard reaches the position of the indentation ring 7, at this time, the end of the U-shaped frame 25 connected to the moving block 18 will also reach the position of the indentation semi-ring 8. As the moving block 18 continues to move, the jacking groove 26 on the U-shaped frame 25 will squeeze the rounded corner 31 at the bottom end of the second slide bar 29, so as to drive the second slide bar 29 to slide and rise inside the second slide hole 28. At this time, the second return spring 30 is in an elongated state, and the indentation semi-ring 8 will perform an indentation operation on the lower surface of the paper product cardboard. After the indentation is completed, the second return spring 30 pulls the second slide bar 29 to drive the indentation semi-ring 8 to descend, so as to prevent the indentation semi-ring 8 from interfering with the feeding of the paper product cardboard.

[0039] like Figures 1 to 9 As shown, the inner walls at both ends of the storage frame 2 are symmetrically provided with sliding grooves 32 , a slide plate 33 is slidably installed between the two slide grooves 32 , and a counterweight block 34 is fixedly installed in the middle of the upper surface of the slide plate 33 .

[0040] The weight of the counterweight 34 can press down the stacked paper products, ensuring that the paper products at the bottom of the stack are always at the bottom of the storage frame 2 .

[0041] like Figures 1 to 9 As shown, a method for using a paper product paperboard pressing device comprises the following steps:

[0042] S1, placing a plurality of stacked paper products and paperboards in the storage frame 2, and then installing the slide plate 33 in the slide slot 32, and pressing the stacked paper products and paperboards downward by the gravity of the counterweight block 34;

[0043] S2, the first rotating rod 6 is driven to rotate by the driving motor 9, which will drive the indentation ring 7 and the first bevel gear 10 to rotate, and the second rotating rod 12 is driven to rotate by the meshing of the second bevel gear 13 and the first bevel gear 10, thereby controlling the rotation of the driving gear 14, and the meshing of the driven gear 16 and the driving gear 14 will drive the rotating disk 15 to rotate, and the connection between the rotating disk 15 and the moving block 18 by the connecting rod 20 will drive the moving block 18 to slide along the outer side of the limit rod 17, and the push block 4 will push the bottom paper product skin to pass the paper product skin through the perforation 3 and move it to the position of the indentation ring 7, and the upper surface of the paper product skin will be indented and conveyed by the rotation of the indentation ring 7;

[0044] S3, when the paper product cardboard reaches the position of the indentation ring 7, at this time, the end of the U-shaped frame 25 connected to the moving block 18 will also reach the position of the indentation semi-ring 8. As the moving block 18 continues to move, the jacking groove 26 on the U-shaped frame 25 will squeeze the rounded corner 31 at the bottom end of the second slide bar 29, so as to drive the second slide bar 29 to slide and rise inside the second slide hole 28. At this time, the second return spring 30 is in an extended state, and the indentation semi-ring 8 will perform an indentation operation on the lower surface of the paper product cardboard;

[0045] S4, as the paper product skin moves out of the indentation area, with the rotation of the turntable 15, the moving block 18 will be driven to slide in the opposite direction along the outer side of the limit rod 17, and the push block 4 will move to a position close to the through hole 3 on the storage frame 2. With the movement of the push block 4, the paper product skin at the bottom will squeeze the bevel 24 on the push block 4. At this time, the first slide bar 22 connected to the push block 4 will be driven to slide down inside the first slide hole 21. At this time, the second return spring 30 is in a compressed state, and the push block 4 will move in contact with the lower surface of the paper product skin at the bottom, and finally move to the other side of the paper product skin. Under the push of the second return spring 30 on the push block 4, the push block 4 will be driven to rise, and one side of the push block 4 will be in contact with one side of the paper product skin at the bottom, so as to realize uninterrupted feeding of the paper product skin.

[0046] 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. A paper product paperboard pressing device, characterized in that: The invention comprises a workbench (1), a storage frame (2) is fixedly installed at the end of the workbench (1), paper product paperboard is placed inside the storage frame (2), a through hole (3) for the paper product paperboard to pass through is opened at the bottom of one side of the storage frame (2), a push block (4) for intermittently pushing the paper product paperboard is slidably installed in the middle of one side of the workbench (1) close to the storage frame (2), a fixed block (5) is symmetrically fixedly installed in the middle of the workbench (1), a first rotating rod (6) is rotatably installed between the two fixed blocks (5) through a bearing, an indentation ring (7) is fixedly installed in the middle of the first rotating rod (6) corresponding to the indentation of the paper product paperboard, and an indentation half ring (8) is installed in the middle of the workbench (1) corresponding to the position of the indentation ring (7), and the indentation half ring (8) can be raised and lowered.

2. A paper product paperboard pressing device according to claim 1, characterized in that: A turntable (15) is rotatably mounted on the middle part of the lower surface of the workbench (1) via an axle pin, a limit rod (17) is symmetrically fixedly mounted on the middle part of one end of the workbench (1) close to the storage frame (2), a moving block (18) is slidably mounted between the two limit rods (17), a limit hole (19) is provided in the moving block (18) corresponding to the position of the limit rod (17), the limit hole (19) is slidably connected to the moving block (18), the push block (4) is mounted on the top of the moving block (18), a connecting rod (20) is rotatably mounted on the bottom of the moving block (18) via an axle pin, and one end of the connecting rod (20) away from the moving block (18) is eccentrically rotatably connected to the lower surface of the turntable (15) via an axle pin.

3. A paper product paperboard pressing device according to claim 2, characterized in that: A driving motor (9) is fixedly mounted on one side of one of the fixed blocks (5), the output end of the driving motor (9) is fixedly connected to a first rotating rod (6), a first bevel gear (10) is fixedly mounted on one end of the first rotating rod (6) away from the driving motor (9), a mounting block (11) is fixedly mounted on one side of the workbench (1) close to the first bevel gear (10), a second rotating rod (12) is rotatably mounted on the middle part of the mounting block (11) via a bearing, a second bevel gear (13) is fixedly mounted on the top end of the second rotating rod (12), the second bevel gear (13) is meshingly connected to the first bevel gear (10), a driving gear (14) is fixedly mounted on the bottom end of the second rotating rod (12), a driven gear (16) is fixedly mounted on the outer side of the rotating disk (15), the driven gear (16) is meshingly connected to the driving gear (14).

4. A paper product paperboard pressing device according to claim 2, characterized in that: A first sliding hole (21) is symmetrically provided in the middle of the moving block (18), a first sliding rod (22) is slidably installed inside the first sliding hole (21), the tops of the two first sliding rods (22) are fixedly connected to the push block (4), a first return spring (23) is sleeved on the outer side of the top end of the first sliding rod (22), one end of the first return spring (23) is fixedly connected to the moving block (18), and the other end of the first return spring (23) is fixedly connected to the push block (4), and a bevel (24) is provided at one side top corner of the push block (4).

5. A paper product paperboard pressing device according to claim 4, characterized in that: A U-shaped frame (25) is fixedly installed on one side of the top of the moving block (18), and lifting grooves (26) are provided on both sides of the U-shaped frame (25). A mounting plate (27) is fixedly installed at the middle of the workbench (1) at a position corresponding to the indentation ring (7), and a second sliding hole (28) is provided in the middle of the mounting plate (27). A second sliding rod (29) is slidably installed inside the second sliding hole (28), and the indentation semi-ring (8) is fixedly installed on the top of the second sliding rod (29). A second return spring (30) is sleeved on the outer side of the top of the second sliding rod (29), one end of the second return spring (30) is fixedly connected to the mounting plate (27), and the other end of the second return spring (30) is fixedly connected to the indentation semi-ring (8), and the bottom end of the second sliding rod (29) is provided with a rounded corner (31).

6. A paper product paperboard pressing device according to claim 1, characterized in that: The inner walls at both ends of the storage frame (2) are symmetrically provided with sliding grooves (32), a sliding plate (33) is slidably installed between the two sliding grooves (32), and a counterweight block (34) is fixedly installed in the middle of the upper surface of the sliding plate (33).

7. A method for using a paper product paperboard pressing device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, placing a plurality of stacked paper products and paperboards inside a storage frame (2), then installing a slide plate (33) inside a slide groove (32), and pressing the stacked paper products and paperboards downward by the gravity of a counterweight block (34); S2, the first rotating rod (6) is driven to rotate by the driving motor (9), which drives the indentation ring (7) and the first bevel gear (10) to rotate, and the second rotating rod (12) is driven to rotate by the meshing of the second bevel gear (13) and the first bevel gear (10), thereby controlling the rotation of the driving gear (14), and the meshing of the driven gear (16) and the driving gear (14) drives the rotating disk (15) to rotate, and the connection between the rotating disk (15) and the moving block (18) by the connecting rod (20) drives the moving block (18) to slide along the outer side of the limit rod (17), and the push block (4) pushes the bottommost paper product skin to pass the paper product skin through the perforation (3) and move it to the position of the indentation ring (7), and the upper surface of the paper product skin is indented and conveyed by the rotation of the indentation ring (7); S3, when the paper product cardboard reaches the position of the indentation ring (7), at this time, the end of the U-shaped frame (25) connected to the moving block (18) will also reach the position of the indentation semi-ring (8). As the moving block (18) continues to move, the lifting groove (26) on the U-shaped frame (25) will squeeze the rounded corner (31) at the bottom end of the second slide bar (29), so as to drive the second slide bar (29) to slide and rise inside the second slide hole (28). At this time, the second return spring (30) is in an extended state, and the indentation semi-ring (8) will perform an indentation operation on the lower surface of the paper product cardboard; S4, as the paper product skin moves out of the indentation area, the rotation of the turntable (15) will drive the moving block (18) to slide in the opposite direction along the outer side of the limit rod (17), and the push block (4) will move to a position close to the perforation (3) on the storage frame (2). As the push block (4) moves, the paper product skin at the bottom will press the bevel (24) on the push block (4). At this time, the first slide bar (22) connected to the push block (4) will slide down inside the first slide hole (21). At this time, the second return spring (30) is in a compressed state, and the push block (4) will move in contact with the lower surface of the paper product skin at the bottom, and finally move to the other side of the paper product skin. Under the push of the second return spring (30) on the push block (4), the push block (4) will be driven to rise, and one side of the push block (4) will be in contact with one side of the paper product skin at the bottom, so as to realize uninterrupted feeding of the paper product skin.

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