A paper pressing device for a printing machine

Abstract

The application relates to a paper pressing device for a printing machine, belonging to the technical field of printing auxiliary equipment, which comprises a workbench, a fixed seat arranged above the workbench, a hanging plate arranged between the fixed seat and the workbench, a telescopic oil cylinder installed between the fixed seat and the hanging plate, a support fixedly connected between the hanging plate and the workbench, a sliding cavity formed in the surface of the hanging plate facing the workbench, two bases slidingly connected in the sliding cavity, limit blocks fixedly arranged at the two ends of the bases, limit grooves formed in the inner wall of the sliding cavity at the hanging plate and adapted to slide with the limit blocks, a bidirectional screw rod rotationally connected to the hanging plate in the sliding cavity, the bidirectional screw rod penetrating through the two bases and being threadedly connected between the bidirectional screw rod and the bases, a first driving motor installed on one side of the hanging plate and used for driving the bidirectional screw rod to rotate, a compression roller arranged between the hanging plate and the workbench, and the compression roller being in one-to-one correspondence with the bases and connected with the bases. The application has the effect of improving the flatness of paper.

Description

Technical Field

[0001] This application relates to the technical field of printing auxiliary equipment, and in particular to a paper pressing device for a printing press. Background Technology

[0002] Printing is a technology that involves transferring ink from original manuscripts such as text, pictures, photographs, and anti-counterfeiting materials to the surface of materials like paper, textiles, plastics, leather, PVC, and PC through processes such as plate making, inking, and pressing. This allows for the mass reproduction of the original content. Currently, existing printing presses require cutting the original paper before printing. Before cutting, the paper stacks need to be moved to a cutting platform, and then a pressing device is used to press the paper firmly before cutting.

[0003] Existing paper pressing devices typically use two hydraulic cylinders to drive a pressure plate to press the paper. However, when the paper has wrinkles, the pressed paper will still have wrinkles, resulting in unsatisfactory flatness after pressing. Summary of the Invention

[0004] To improve the flatness of paper, this application provides a paper pressing device for a printing press.

[0005] The paper pressing device for a printing press provided in this application adopts the following technical solution: A paper pressing device for a printing press includes a worktable, a fixed base above the worktable, a hanging plate between the fixed base and the worktable, a telescopic hydraulic cylinder between the fixed base and the hanging plate, a support fixedly connected to the fixed base and the worktable, a sliding cavity opened on the surface of the hanging plate facing the worktable, a base slidably connected inside the sliding cavity, a limit block fixed at both ends of the base, a limit groove opened on the inner wall of the hanging plate at the sliding cavity to slide and adapt to the limit block, two bases are provided, a bidirectional lead screw rotatably connected to the hanging plate inside the sliding cavity, the bidirectional lead screw passing through the two bases and threadedly connected to the bases, a first drive motor for driving the bidirectional lead screw to rotate is installed on one side of the hanging plate, and pressure rollers are provided between the hanging plate and the worktable, the number of pressure rollers being the same as the number of bases and connected one-to-one.

[0006] Using the above technical solution, after the paper stack is placed on the worktable surface, the telescopic cylinder is activated to lower the pressure roller until it comes into contact with the paper stack surface and presses the paper stack firmly. Then, the first drive motor is activated to move the two bases away from each other, so that the two pressure rollers move along the paper stack surface, thereby smoothing out the wrinkles of the paper stack and achieving the effect of improving the flatness of the paper.

[0007] Optionally, the surface of the workbench has a storage cavity, and a cutting seat is slidably connected inside the storage cavity. Two one-way screws are rotatably connected to the workbench within the storage cavity. Both one-way screws pass through the cutting seat and are threadedly connected to it. A second drive motor for rotating the one-way screws is installed on one side of the workbench. A first through slot and a second through slot are formed through the surface of the cutting seat facing the storage cavity. The first and second through slots are perpendicular to each other. A first baffle and a second baffle are slidably connected inside the first and second through slots, respectively. A first adjustment component and a second adjustment component are provided inside the storage cavity to adjust the positions of the first and second baffles, respectively. A first tidying component is provided on the side of the workbench opposite the first baffle, and a second tidying component is provided on the side of the workbench opposite the second baffle. The first and second tidying components are used to align the paper stacks to be cut.

[0008] Using the above technical solution, the worker places the paper stack on the surface of the cutting seat. The first sorting component pushes the paper stack against the first baffle, and then the second sorting component pushes the paper stack against the second baffle, thereby aligning the four sides of the paper stack, reducing manual operation and reducing the labor intensity of the workers. After the paper stack is sorted and aligned, the cutting seat moves to the bottom of the pressure roller. At this time, the first baffle and the second baffle slide to be flush with the surface of the cutting seat, which facilitates the cutting of the paper stack.

[0009] Optionally, the first sorting component includes a first rotating shaft, a first trigger rod, and a first moving rod. A first rotating roller is fixedly installed inside the first rotating shaft. Both ends of the first rotating roller pass through the first rotating shaft and extend to the outside. One end of the first rotating roller is rotatably connected to the worktable. A third drive motor for driving the first rotating roller to rotate is installed on one side of the worktable. A first trigger groove is spirally opened on the circumferential sidewall of the first rotating shaft. One end of the first trigger rod extends into the first trigger groove. The first moving rod is fixedly connected to the end of the first trigger rod away from the first rotating shaft. A first sorting plate is fixedly connected to the end of the first moving rod near the worktable. A first support seat is sleeved on the first moving rod and the two are slidably adapted to each other. The first support seat is fixedly connected to the worktable.

[0010] Using the above technical solution, after the third drive motor starts, the first roller rotates, causing the first shaft to rotate. The first shaft moves the first trigger rod through the first trigger groove, thereby causing the first moving rod to slide within the first support seat. As a result, the first moving rod causes the first sorting plate to reciprocate, achieving the effect of pushing the paper stack to align with the first baffle.

[0011] Optionally, the second sorting component includes a second rotating shaft, a second trigger rod, and a second moving rod. A second rotating roller is fixedly installed inside the second rotating shaft. Both ends of the second rotating roller pass through the second rotating shaft and extend to the outside. One end of the second rotating roller is rotatably connected to the worktable. A linkage component is provided on one side of the worktable to enable a third drive motor to simultaneously drive the first and second rotating rollers to rotate. A second trigger groove is spirally opened on the circumferential sidewall of the second rotating shaft. One end of the second trigger rod extends into the second trigger groove. The second moving rod is fixedly connected to the end of the second trigger rod away from the second rotating shaft. A second sorting plate is fixedly connected to the end of the second moving rod near the worktable. A second support seat is sleeved on the second moving rod and the two are slidably adapted to each other. The second support seat is fixedly connected to the worktable.

[0012] Using the above technical solution, after the third drive motor starts, the second roller rotates, causing the second shaft to rotate. The second shaft moves the second trigger rod through the second trigger groove, thereby causing the second moving rod to slide within the second support seat. As a result, the second moving rod causes the second sorting plate to reciprocate, achieving the effect of pushing the paper stack to align with the second baffle.

[0013] Optionally, the linkage assembly includes a linkage roller and a linkage belt. One end of the linkage roller is fixedly connected to the output shaft of the third drive motor, and the other end of the linkage roller is fixedly connected to a main bevel gear. The end of the first rotating roller is fixedly connected to a driven bevel gear that meshes with the main bevel gear. A fixed plate is fixedly connected to the side wall of the worktable facing the linkage roller. The linkage roller passes through the fixed plate and the two are rotatably connected. A main linkage wheel is fixedly connected to the linkage roller, and a driven linkage wheel is fixedly connected to the second rotating roller. The linkage belt passes around the main linkage wheel and the driven linkage wheel.

[0014] Using the above technical solution, the third drive motor starts to rotate the linkage roller, which in turn rotates the first roller via a main bevel gear and a driven bevel gear. Simultaneously, the linkage roller rotates the main linkage wheel, which in turn rotates the driven linkage wheel via a linkage belt, thereby causing the second roller to rotate. This structure achieves the effect of the third drive motor driving the first and second rollers to rotate.

[0015] Optionally, the first adjustment assembly includes a first adjustment plate, a first adjustment spring, and a first adjustment seat. The first adjustment plate is fixedly connected to a first baffle, the first adjustment spring is fixedly connected between the first adjustment plate and the cutting seat, and the first adjustment seat is fixedly connected to the inner wall of the worktable at the storage cavity. The first adjustment seat is used to press the first adjustment plate. The second adjustment assembly includes a second adjustment plate, a second adjustment spring, and a second adjustment seat. The second adjustment plate is fixedly connected to a second baffle, the second adjustment spring is fixedly connected between the second adjustment plate and the cutting seat, and the second adjustment seat is fixedly connected to the inner wall of the worktable at the storage cavity. The second adjustment seat is used to press the second adjustment plate.

[0016] Using the above technical solution, after the paper stack is aligned, the cutting seat moves the paper stack to below the pressure roller. At this time, the first baffle and the second baffle are disengaged from the first adjusting seat and the second adjusting seat, respectively. Then, the first adjusting spring and the second adjusting spring release their elastic force, so that the top of the first baffle and the second adjusting plate are flush with the cutting seat.

[0017] Optionally, the first baffle is ball-jointed to the side wall of the first adjusting seat with a first ball bearing, and the second baffle is ball-jointed to the side wall of the second adjusting seat with a second ball bearing.

[0018] By adopting the above technical solution, the sliding friction between the first adjusting plate and the first adjusting seat is replaced by rolling friction, thereby reducing the friction between the first adjusting plate and the first adjusting seat; the sliding friction between the second adjusting plate and the second adjusting seat is replaced by rolling friction, thereby reducing the friction between the second adjusting plate and the second adjusting seat.

[0019] Optionally, the first adjusting spring is provided with a first telescopic rod, the two ends of which are fixedly connected to the first adjusting plate and the cutting seat respectively; the second adjusting spring is provided with a second telescopic rod, the two ends of which are fixedly connected to the second adjusting plate and the cutting seat respectively.

[0020] By adopting the above technical solution, the first telescopic rod and the second telescopic rod support the first adjusting spring and the second adjusting spring respectively, thereby improving the stability of the movement of the first baffle and the second baffle.

[0021] Optionally, guide blocks are fixedly connected to both sides of the cutting seat, and a guide groove is opened on the inner wall of the storage cavity of the worktable to slide and adapt to the guide blocks. A guide rod is fixedly connected to the worktable in the guide groove, and the guide rod passes through the guide block and the two slide and adapt to each other.

[0022] Using the above technical solution, the movement of the cutting seat causes the guide block to slide along the guide groove and guide rod, thereby guiding and limiting the cutting seat.

[0023] Optionally, two support plates are fixedly connected to the side of the base away from the hanging plate, and a pressure roller is set between the two support plates. A transmission roller is fixedly installed inside the pressure roller. The two ends of the transmission roller pass through the two support plates respectively, and the transmission roller is rotatably connected to the support plates. A transmission gear is fixedly connected to the end of the transmission roller that passes through the support plate. A transmission rack that meshes with the transmission gear is provided on the opposite side of the two support plates. A hanging rod is fixedly connected between the transmission rack and the hanging plate.

[0024] Using the above technical solution, the base movement causes the support plate to move, which in turn causes the transmission gear to roll along the transmission rack via the transmission roller, thereby causing the transmission roller to rotate. This causes the pressure roller to rotate, and the pressure roller rotates around its own central axis during the process of smoothing the paper stack, which improves the effect of smoothing wrinkles.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. After the telescopic cylinder is started, it presses the pressure roller against the paper stack surface. Then the first drive motor is started. After the first drive motor is started, the two bases move away from each other, so the two pressure rollers move away from each other. At the same time, the pressure rollers rotate around their own central axis. Thus, the pressure rollers smooth the paper stack, thereby improving the flatness of the paper. 2. After the paper stack is placed on the cutting table surface, the worker starts the third drive motor. After the third drive motor starts, the first and second rollers rotate simultaneously. At this time, the first sorting plate pushes the paper stack and the first baffle to align. Then the second sorting plate pushes the paper stack and the second baffle to align. The worker does not need to sort and align the paper stack, which reduces the labor intensity of the worker. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a paper pressing device for a printing press according to an embodiment of this application; Figure 2 This is a structural schematic diagram illustrating the movement mode of the first baffle and the second baffle according to an embodiment of this application; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 yes Figure 2 A magnified view of part B in the middle section; Figure 5 This is a partial schematic diagram illustrating the movement of the first and second sorting plates in an embodiment of this application; Figure 6 yes Figure 5 A magnified view of part C in the middle; Figure 7 yes Figure 5 A magnified view of part D in the middle; Figure 8 yes Figure 5 A magnified view of part E in the middle; Figure 9 This is a cross-sectional view illustrating the movement of the pressure roller in an embodiment of this application.

[0027] In the diagram, 1. Workbench; 11. Support; 111. Fixed seat; 1111. Telescopic cylinder; 12. Storage cavity; 13. Cutting seat; 131. First through slot; 132. Second through slot; 133. First baffle; 1331. First ball bearing; 134. Second baffle; 1341. Second ball bearing; 135. Guide block; 14. One-way lead screw; 15. Second mounting seat; 151. Second drive motor; 16. Third mounting seat; 161 17. Third drive motor; 18. Fixed plate; 19. Guide groove; 20. Guide rod; 21. Hanging plate; 22. Sliding cavity; 23. Base; 24. Limiting block; 25. Support plate; 26. Limiting groove; 27. Bidirectional lead screw; 28. First mounting base; 29. ​​First drive motor; 20. Hanging rod; 20. Transmission rack; 21. Pressure roller; 22. Transmission roller; 22. Transmission gear; 22. First adjusting assembly; 23. First adjusting plate; 44. 2. First adjusting spring; 421. First telescopic rod; 43. First adjusting seat; 431. First inclined surface; 5. Second adjusting assembly; 51. Second adjusting plate; 52. Second adjusting spring; 521. Second telescopic rod; 53. Second adjusting seat; 531. Second inclined surface; 6. First sorting assembly; 61. First rotating shaft; 611. First rotating roller; 6111. Driven bevel gear; 612. First trigger groove; 62. First trigger rod; 63. First moving rod; 631. First sorting plate; 632. First support seat; 7. Second sorting assembly; 71. Second rotating shaft; 711. Second rotating roller; 7111. Driven linkage wheel; 712. Second trigger groove; 72. Second trigger rod; 73. Second moving rod; 731. Second sorting plate; 732. Second support seat; 8. Linkage assembly; 81. Linkage roller; 811. Main bevel gear; 812. Main linkage wheel; 82. Linkage belt. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0029] This application discloses a paper pressing device for a printing press.

[0030] refer to Figure 1 A paper pressing device for a printing press includes a worktable 1, which is arranged horizontally. A storage cavity 12 is provided on the upper surface of the worktable 1. A cutting seat 13 is slidably connected in the storage cavity 12. A support 11 is fixedly connected to one end of the worktable 1 in the vertical direction. A fixed seat 111 is arranged horizontally at the end of the support 11 away from the worktable 1. A pressure roller 3 is arranged horizontally between the fixed seat 111 and the worktable 1. There are two pressure rollers 3, which are arranged opposite to each other.

[0031] The staff places the paper stack on the surface of the cutting seat 13. The paper stack is aligned on the cutting seat 13. Then the cutting seat 13 slides to the bottom of the fixed seat 111. At this time, the pressure roller 3 descends to the surface of the paper stack and presses it. Then the two pressure rollers 3 move away from each other and rotate around their own central axis, thereby pressing the paper stack and smoothing out the wrinkles. Finally, the paper stack is cut.

[0032] refer to Figure 1 , Figure 2 and Figure 3 The cutting seat 13 has a first through groove 131 extending through the surface of the storage cavity 12. A first baffle 133 is slidably connected in the vertical direction in the first through groove 131. A first ball bearing 1331 is ball-hinged to the surface of the first baffle 133 facing the storage cavity 12. A first adjustment component 4 is provided in the storage cavity 12.

[0033] refer to Figure 3 The first adjustment assembly 4 includes a first adjustment plate 41, a first adjustment spring 42, and a first adjustment seat 43. There are two first adjustment plates 41, which are respectively arranged horizontally on both sides of the first baffle 133. One side of the first adjustment plate 41 is fixedly connected to the first baffle 133. The number of first adjustment springs 42 is the same as the number of first adjustment plates 41 and corresponds one-to-one. The two ends of the first adjustment spring 42 are fixedly connected to the first adjustment plate 41 and the cutting seat 13, respectively. A first telescopic rod 421 is provided inside the first adjustment spring 42. The first telescopic rod 421 has a multi-stage telescopic structure. The first telescopic rod 421 includes an inner rod and an outer rod. The two ends of the first telescopic rod 421 are fixedly connected to the first adjustment plate 41 and the cutting seat 13, respectively. The first adjustment seat 43 is fixedly connected to the inner wall of the worktable 1 at the storage cavity 12. The first adjustment seat 43 is used to squeeze the first ball 1331, and a first inclined surface 431 is provided on one side of the first adjustment seat 43.

[0034] refer to Figure 1 , Figure 2 and Figure 4 The cutting seat 13 has a second through groove 132 extending through the surface of the receiving cavity 12. The second through groove 132 is perpendicular to the first through groove 131. A second baffle 134 is slidably connected in the vertical direction inside the second through groove 132. A second ball bearing 1341 is ball-hinged to the surface of the second baffle 134 facing the receiving cavity 12. A second adjustment component 5 is provided inside the receiving cavity 12.

[0035] refer to Figure 4The second adjustment assembly 5 includes a second adjustment plate 51, a second adjustment spring 52, and a second adjustment seat 53. There are two second adjustment plates 51, which are respectively arranged horizontally on both sides of the second baffle 134. One side of the second adjustment plate 51 is fixedly connected to the second baffle 134. The number of second adjustment springs 52 is the same as the number of second adjustment plates 51 and corresponds one-to-one. The two ends of the second adjustment spring 52 are respectively fixedly connected to the second adjustment plate 51 and the cutting seat 13. A second telescopic rod 521 is provided inside the second adjustment spring 52. The second telescopic rod 521 has a multi-stage telescopic structure and includes an inner rod and an outer rod. The two ends of the second telescopic rod 521 are respectively fixedly connected to the second adjustment plate 51 and the cutting seat 13. The second adjustment seat 53 is fixedly connected to the inner wall of the worktable 1 at the storage cavity 12. The second adjustment seat 53 is used to squeeze the second ball 1341, and a second inclined surface 531 is provided on one side of the second adjustment seat 53.

[0036] After the paper stacks are neatly aligned on the surface of the cutting seat 13, the cutting seat 13 moves to below the fixed seat 111. The movement of the cutting seat 13 causes the first ball bearing 1331 to roll along the first inclined surface 431 until the first ball bearing 1331 disengages from the first adjusting seat 43. At this time, the first telescopic spring releases its elastic force to move the first adjusting plate 41. The first adjusting plate 41 causes the first baffle 133 to slide downward until the first baffle 133 is flush with the surface of the cutting seat 13. The movement of the cutting seat 13 causes the second ball bearing 1341 to roll along the second inclined surface 531 until the second ball bearing 1341 disengages from the second adjusting seat 53. At this time, the second telescopic spring releases its elastic force to move the second adjusting plate 51. The second adjusting plate 51 causes the second baffle 134 to slide downward until the second baffle 134 is flush with the surface of the cutting seat 13.

[0037] refer to Figure 5 and Figure 7 A third drive motor 161 is installed at one corner of the workbench 1. A third mounting base 16 is fixedly connected between the third drive motor 161 and the workbench 1. The third mounting base 16 is L-shaped. A first sorting component 6 is provided on the opposite side of the first baffle 133. A first support base 632 is fixedly provided on the side wall of the workbench 1 facing the first sorting component 6. The first support base 632 is L-shaped. A second sorting component 7 is provided on the opposite side of the second baffle 134. A second support base 732 is fixedly provided on the side wall of the workbench 1 facing the second sorting component 7. The second support base 732 is L-shaped.

[0038] refer to Figure 5 and Figure 6The first sorting component 6 includes a first rotating shaft 61, a first trigger rod 62, and a first moving rod 63. A first rotating roller 611 is fixedly installed inside the first rotating shaft 61. Both ends of the first rotating roller 611 pass through the first rotating shaft 61 and extend to the outside. One end of the first rotating roller 611 is rotatably connected to the worktable 1. The other end of the first rotating roller 611 is fixedly connected to a bevel gear 6111. A first trigger groove 612 is spirally opened on the circumferential sidewall of the first rotating shaft 61. The first trigger groove 612 is connected end to end. One end of the first trigger rod 62 extends into the first trigger groove 612. The first moving rod 63 is fixedly connected to the end of the first trigger rod 62 away from the first rotating shaft 61. The first moving rod 63 passes through the first support base 632 and the two are slidably adapted to each other. The end of the first moving rod 63 near the worktable 1 is fixedly connected to a first sorting plate 631.

[0039] refer to Figure 5 , Figure 7 and Figure 8 The second sorting component 7 includes a second rotating shaft 71, a second trigger rod 72, and a second moving rod 73. A second rotating roller 711 is fixedly installed inside the second rotating shaft 71. Both ends of the second rotating roller 711 pass through the second rotating shaft 71 and extend to the outside. One end of the second rotating roller 711 is rotatably connected to the worktable 1. The other end of the second rotating roller 711 is fixedly connected to a drive wheel 7111. A second trigger groove 712 is spirally opened on the circumferential side wall of the second rotating shaft 71. The two ends of the second trigger groove 712 are connected. One end of the second trigger rod 72 extends into the second trigger groove 712. The second moving rod 73 is fixedly connected to the end of the second trigger rod 72 away from the second rotating shaft 71. The second moving rod 73 passes through the second support base 732 and the two are slidably adapted to each other. The end of the second moving rod 73 near the worktable 1 is fixedly connected to a second sorting plate 731.

[0040] refer to Figure 5 and Figure 8 A linkage assembly 8 is provided between the first rotating roller 611 and the second rotating roller 711. The linkage assembly 8 includes a linkage roller 81 and a linkage belt 82. One end of the linkage roller 81 is fixedly connected to the output shaft of the third drive motor 161, and the other end of the linkage roller 81 is fixedly connected to a main bevel gear 811 that meshes with the driven bevel gear 6111. A fixed plate 17 is fixedly connected to the side wall of the worktable 1 facing the linkage roller 81. The linkage roller 81 passes through the fixed plate 17 and the two are rotatably connected. A main linkage wheel 812 is fixedly connected to the linkage roller 81, and the linkage belt 82 passes around the main linkage wheel 812 and the driven linkage wheel 7111.

[0041] The third drive motor 161 starts and drives the linkage roller 81 to rotate. The rotation of the linkage roller 81 drives the main bevel gear 811 to rotate. The main bevel gear 811 drives the driven bevel gear 6111 to rotate. The driven bevel gear 6111 drives the first rotating roller 611 to rotate. The first rotating roller 611 drives the first rotating shaft 61 to rotate. The first rotating shaft 61 drives the first trigger rod 62 to reciprocate along the length direction of the first rotating roller 611 through the first trigger groove 612. Thus, the first trigger rod 62 drives the first moving rod 63 to slide back and forth along the movement direction of the first trigger rod 62. Thus, the first moving rod 63 drives the first sorting plate 631 to reciprocate away from the first baffle 133 and towards the first baffle 133. After the worker places the paper stack on the surface of the cutting seat 13, the first sorting plate 631 moves towards the first baffle 133, thus the first sorting plate 631 pushes the paper stack to align with the first baffle 133. Then the first sorting plate 631 moves away from the first baffle 133. The rotation of the linkage roller 81 drives the main linkage wheel 812 to rotate. The main linkage wheel 812 drives the driven linkage wheel 7111 to rotate via the linkage belt 82. The driven linkage wheel drives the second rotating roller 711 to rotate. The second rotating roller 711 drives the second rotating shaft 71 to rotate. The second rotating shaft 71 drives the second trigger rod 72 to reciprocate along the length of the second rotating roller 711 via the second trigger groove 712. As a result, the second trigger rod 72 drives the second moving rod 73 to slide back and forth along the direction of movement of the second trigger rod 72. As a result, the second moving rod 73 drives the second sorting plate 731 to reciprocate away from the second baffle 134 and towards the second baffle 134. When the first sorting plate 631 moves away from the first baffle 134, the second sorting plate 731 moves towards the second baffle 134. As a result, the second sorting plate 731 pushes the paper stack to align with the second baffle 134. Then the second sorting plate 731 moves away from the second baffle 134.

[0042] refer to Figure 2 and Figure 5 Both sides of the cutting seat 13 are fixedly connected to guide blocks 135. The inner wall of the worktable 1 at the storage cavity 12 is provided with a guide groove 18 that is slidably adapted to the guide block 135. A guide rod 19 is provided in the guide groove 18 along the horizontal direction. Both ends of the guide rod 19 are fixedly connected to the inner wall of the worktable 1 at the guide groove 18. The guide rod 19 passes through the guide block 135 and the two are slidably adapted to each other.

[0043] refer to Figure 1 A one-way lead screw 14 is arranged horizontally inside the storage cavity 12. There are two one-way lead screws 14. Both ends of the one-way lead screw 14 are rotatably connected to the inner wall of the worktable 1 at the storage cavity 12. Both one-way lead screws 14 pass through the cutting seat 13 and are threadedly connected to each other. A second drive motor 151 for driving the one-way lead screw 14 to rotate is installed on one side of the worktable 1. A second mounting seat 15 is fixedly connected between the second drive motor 151 and the worktable 1.

[0044] After the paper stacks are neatly aligned, the second drive motor 151 starts and drives the one-way lead screw 14 to rotate. The rotation of the one-way lead screw 14 drives the cutting seat 13 to slide horizontally until the cutting seat 13 slides below the fixed seat 111. Then the paper stacks are pressed tightly and cut. After the cutting is completed, the second drive motor 151 starts again and drives the cutting seat 13 to reset. During the sliding process of the cutting seat 13, the cutting seat 13 drives the guide block 135 to slide along the guide groove 18 and the guide rod 19.

[0045] refer to Figure 1 and Figure 9 A hanging plate 2 is horizontally arranged between the fixed base 111 and the worktable 1. A telescopic cylinder 1111 is fixedly connected to the surface of the fixed base 111 facing the hanging plate 2. The piston rod end of the telescopic cylinder 1111 is fixedly connected to the hanging plate 2. A sliding cavity 21 is opened on the surface of the hanging plate 2 facing the worktable 1. A base 22 is slidably connected in the sliding cavity 21. Two bases 22 are provided. Limiting blocks 221 are fixed at both ends of the base 22. A limiting groove 23 that is slidably adapted to the limiting block 221 is opened on the inner wall of the hanging plate 2 at the sliding cavity 21.

[0046] refer to Figure 9 The hanging plate 2 is rotatably connected to a bidirectional lead screw 24 in the sliding cavity 21. The two ends of the bidirectional lead screw 24 are provided with two sections of threads with opposite directions. The bidirectional lead screw 24 passes through two bases 22 and is threadedly connected to the bases 22. The two bases 22 are respectively set on the two sections of threads. A first drive motor 251 for driving the bidirectional lead screw 24 to rotate is installed on one side of the hanging plate 2. A first mounting base 25 is fixedly connected between the first drive motor 251 and the hanging plate 2.

[0047] refer to Figure 1 and Figure 9 A transmission rack 261 is provided horizontally between the hanging plate 2 and the workbench 1. There are two transmission racks 261, which are respectively located on both sides of the hanging plate 2. A hanging rod 26 is fixedly connected between the hanging plate 2 and the transmission rack 261.

[0048] refer to Figure 9 Two support plates 222 are fixedly connected vertically to the side of the base 22 away from the hanging plate 2. The two support plates 222 are arranged opposite each other at both ends of the base 22. The pressure roller 3 is arranged horizontally between the two support plates 222. A transmission roller 31 is fixedly installed inside the pressure roller 3. The two ends of the transmission roller 31 pass through the two support plates 222 respectively, and the transmission roller 31 is rotatably connected to the support plates 222. The end of the transmission roller 31 that passes through the support plate 222 is fixedly connected to a transmission gear 311 that meshes with the transmission rack 261.

[0049] After the cutting seat 13 moves to below the fixed seat 111, the telescopic cylinder 1111 starts, driving the pressure roller 3 to approach the paper stack until the surface of the paper stack is pressed tightly. Then, the first drive motor 251 starts, driving the one-way screw 14 to rotate. The rotation of the one-way screw 14 drives the two bases 22 to move away from each other, thereby the bases 22 drive the two pressure rollers 3 to move away from each other through the support plate 222. During the movement of the two pressure rollers 3 away from each other, the pressure rollers 3 drive the transmission gear 311 to roll along the transmission rack 261 through the transmission roller 31, thereby the transmission gear 311 drives the transmission roller 31 to rotate, and the transmission roller 31 drives the pressure roller 3 to rotate, thereby pressing and smoothing the paper stack. After the cutting is completed, the first drive motor 251 starts again, driving the pressure roller 3 to reset.

[0050] The implementation principle of a paper pressing device for a printing press according to an embodiment of this application is as follows: After the paper stack is placed on the surface of the cutting seat 13, the third drive motor 161 is started, the first sorting plate 631 pushes the paper stack to align with the first baffle 133, and then the second sorting plate 731 pushes the paper stack to align with the second baffle 134; after the paper stack is sorted and aligned, the second drive motor 151 is started to drive the cutting seat 13 to slide below the fixed seat 111, and then the first drive motor 251 is started to drive the two pressure rollers 3 to move in opposite directions. During the movement of the pressure rollers 3, they rotate around their own central axis, thereby pressing and smoothing the paper stack, and finally cutting the paper stack. Through the above structure, the effect of improving the flatness of the paper is achieved.

[0051] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper pressing device for a printing press, characterized in that: The system includes a workbench (1), a fixed seat (111) above the workbench (1), a hanging plate (2) between the fixed seat (111) and the workbench (1), a telescopic cylinder (1111) between the fixed seat (111) and the hanging plate (2), a support (11) fixedly connected between the fixed seat (111) and the workbench (1), a sliding cavity (21) is opened on the surface of the hanging plate (2) facing the workbench (1), a base (22) is slidably connected in the sliding cavity (21), and limit blocks (221) are fixed at both ends of the base (22). The hanging plate (2) is positioned at the sliding cavity (21). The inner wall is provided with a limiting groove (23) that is adapted to slide with the limiting block (221). There are two bases (22). The hanging plate (2) is rotatably connected to the double screw (24) in the sliding cavity (21). The double screw (24) passes through the two bases (22) and is threadedly connected to the base (22). A first drive motor (251) for driving the double screw (24) to rotate is installed on one side of the hanging plate (2). A pressure roller (3) is provided between the hanging plate (2) and the worktable (1). The number of pressure rollers (3) is the same as the number of bases (22) and they are connected one by one. The base (22) is fixedly connected to two support plates (222) on the side away from the hanging plate (2). The pressure roller (3) is set between the two support plates (222). A transmission roller (31) is fixedly installed inside the pressure roller (3). The two ends of the transmission roller (31) pass through the two support plates (222) respectively, and the transmission roller (31) is rotatably connected to the support plate (222). A transmission gear (311) is fixedly connected to the end of the transmission roller (31) that passes through the support plate (222). A transmission rack (261) that meshes with the transmission gear (311) is provided on the side of the two support plates (222) that are away from each other. A hanging rod (26) is fixedly connected between the transmission rack (261) and the hanging plate (2). The workbench (1) has a storage cavity (12) on its surface. A cutting seat (13) is slidably connected inside the storage cavity (12). A one-way screw (14) is rotatably connected to the workbench (1) inside the storage cavity (12). There are two one-way screws (14), both of which pass through the cutting seat (13) and are threadedly connected. A second drive motor (151) for driving the one-way screw (14) to rotate is installed on one side of the workbench (1). A first through groove (131) and a second through groove (132) are opened through the surface of the cutting seat (13) facing the storage cavity (12). 31) The first baffle (133) and the second baffle (134) are slidably connected in the first baffle (131) and the second baffle (134) respectively. The storage cavity (12) is provided with a first adjustment component (4) and a second adjustment component (5) for adjusting the position of the first baffle (133) and the second baffle (134) respectively. The workbench (1) is provided with a first sorting component (6) on the side opposite to the first baffle (133) and a second sorting component (7) on the side opposite to the second baffle (134). The first sorting component (6) and the second sorting component (7) are used to align the paper stacks to be cut. The first adjustment assembly (4) includes a first adjustment plate (41), a first adjustment spring (42), and a first adjustment seat (43). The first adjustment plate (41) is fixedly connected to the first baffle (133). The first adjustment spring (42) is fixedly connected between the first adjustment plate (41) and the cutting seat (13). The first adjustment seat (43) is fixedly connected to the inner wall of the worktable (1) at the storage cavity (12). The first adjustment seat (43) is used to squeeze the first adjustment plate (41). The second adjustment assembly (5) includes a second adjustment plate (51), a second adjustment spring (52), and a second adjustment seat (53). The second adjustment plate (51) is fixedly connected to the second baffle (134). The second adjustment spring (52) is fixedly connected between the second adjustment plate (51) and the cutting seat (13). The second adjustment seat (53) is fixedly connected to the inner wall of the worktable (1) at the storage cavity (12). The second adjustment seat (53) is used to squeeze the second adjustment plate (51). The first baffle (133) is ball-jointed with a first ball (1331) on the side wall facing the first adjusting seat (43), and the second baffle (134) is ball-jointed with a second ball (1341) on the side wall facing the second adjusting seat (53).

2. The paper pressing device for a printing press according to claim 1, characterized in that: The first sorting component (6) includes a first rotating shaft (61), a first trigger rod (62), and a first moving rod (63). A first rotating roller (611) is fixedly installed inside the first rotating shaft (61). Both ends of the first rotating roller (611) pass through the first rotating shaft (61) and extend to the outside. One end of the first rotating roller (611) is rotatably connected to the worktable (1). A third drive motor (161) for driving the first rotating roller (611) to rotate is installed on one side of the worktable (1). The circumferential side of the first rotating shaft (61) The wall spiral has a first trigger groove (612), one end of the first trigger rod (62) extends into the first trigger groove (612), the first moving rod (63) is fixedly connected to the end of the first trigger rod (62) away from the first rotating shaft (61), the end of the first moving rod (63) near the worktable (1) is fixedly connected to the first sorting plate (631), the first moving rod (63) is sleeved with a first support seat (632) and the two are slidably adapted to each other, and the first support seat (632) is fixedly connected to the worktable (1).

3. The paper pressing device for a printing press according to claim 2, characterized in that: The second sorting component (7) includes a second rotating shaft (71), a second trigger rod (72), and a second moving rod (73). A second rotating roller (711) is fixedly installed inside the second rotating shaft (71). Both ends of the second rotating roller (711) pass through the second rotating shaft (71) and extend to the outside. One end of the second rotating roller (711) is rotatably connected to the worktable (1). A linkage component (8) is provided on one side of the worktable (1) to enable the third drive motor (161) to simultaneously drive the first rotating roller (611) and the second rotating roller (711) to rotate. The circumferential sidewall of the shaft (71) is spirally provided with a second trigger groove (712). One end of the second trigger rod (72) extends into the second trigger groove (712). The second moving rod (73) is fixedly connected to the end of the second trigger rod (72) away from the second rotating shaft (71). The end of the second moving rod (73) near the worktable (1) is fixedly connected to a second sorting plate (731). A second support seat (732) is sleeved on the second moving rod (73) and the two are slidably adapted to each other. The second support seat (732) is fixedly connected to the worktable (1).

4. A paper pressing device for a printing press according to claim 3, characterized in that: The linkage assembly (8) includes a linkage roller (81) and a linkage belt (82). One end of the linkage roller (81) is fixedly connected to the output shaft of the third drive motor (161), and the other end of the linkage roller (81) is fixedly connected to a main bevel gear (811). The end of the first rotating roller (611) is fixedly connected to a driven bevel gear (6111) that meshes with the main bevel gear (811). A fixed plate (17) is fixedly connected to the side wall of the worktable (1) facing the linkage roller (81). The linkage roller (81) passes through the fixed plate (17) and the two are rotatably connected. A main linkage wheel (812) is fixedly connected to the linkage roller (81), and a driven linkage wheel (7111) is fixedly connected to the second rotating roller (711). The linkage belt (82) passes around the main linkage wheel (812) and the driven linkage wheel (7111).

5. A paper pressing device for a printing press according to claim 1, characterized in that: The first adjusting spring (42) is provided with a first telescopic rod (421), and the two ends of the first telescopic rod (421) are fixedly connected to the first adjusting plate (41) and the cutting seat (13) respectively. The second adjusting spring (52) is provided with a second telescopic rod (521), and the two ends of the second telescopic rod (521) are fixedly connected to the second adjusting plate (51) and the cutting seat (13) respectively.

6. A paper pressing device for a printing press according to claim 1, characterized in that: Guide blocks (135) are fixedly connected to both sides of the cutting seat (13). The worktable (1) has a guide groove (18) on the inner wall of the storage cavity (12) that is slidably adapted to the guide block (135). A guide rod (19) is fixedly connected to the worktable (1) in the guide groove (18). The guide rod (19) passes through the guide block (135) and the two are slidably adapted to each other.

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