Paper pressing mechanism for printing paper cutter

Abstract

The utility model relates to the technical field of printing paper cutting machines, and discloses a paper pressing mechanism for a printing paper cutting machine, which comprises a working table, supporting plates are arranged on the left side and the right side of the bottom of the working table, mounting plates are arranged on the left side and the right side of the top of the working table, and connecting blocks are arranged on the tops of the opposite sides of the two mounting plates. And first threaded rods with one ends extending to the bottom of the workbench are arranged at the bottoms of the two connecting blocks correspondingly, and the two first threaded rods are located on the opposite sides of the two supporting plates correspondingly. According to the paper pressing mechanism for the printing paper cutter, paper needing to be cut is placed on the top of the workbench and located below the cutter, and after the paper is placed, a first servo motor can be started to drive a pressing plate to integrally move downwards till the bottom of the pressing plate is tightly attached to the top of the paper; and therefore, the situation that the paper deforms or slides during cutting is avoided, and the cutting effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of printing paper cutter technology, specifically a paper pressing mechanism for a printing paper cutter. Background Technology

[0002] Paper is typically used as a printing medium. To ensure uniform paper size, it needs to be cut to the required specifications after production, making it easier to define the printing position on the paper. Therefore, a paper cutter is usually used. However, many existing paper cutters do not have the function of pressing the paper during actual use. This causes the paper to easily deform and slip due to the pressure of the cutter, resulting in uneven cuts, which is not conducive to use. Therefore, a paper pressing mechanism for a paper cutter is proposed. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a paper pressing mechanism for a printing paper cutter, which has the advantages of pressing the paper firmly. This solves the problem that many existing printing paper cutters do not have the function of pressing the paper firmly during actual use, which causes the paper to easily deform and slip due to the pressure of the cutter when cutting the paper, resulting in uneven cuts and making it unsuitable for use.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned purpose of pressing paper, this utility model provides the following technical solution: a paper pressing mechanism for a printing paper cutter, comprising a worktable, support plates on both the left and right sides of the bottom of the worktable, mounting plates on both the left and right sides of the top of the worktable, connecting blocks on the top of the opposite sides of the two mounting plates, and a first threaded rod extending to the bottom of the worktable at the bottom of each of the two connecting blocks. The two first threaded rods are located on the opposite sides of the two support plates, and a pressure plate is provided between the two mounting plates. A traction block is provided on both the left and right sides of the pressure plate, extending to the opposite sides of the two mounting plates and threadedly connected to the outer side of the two first threaded rods respectively. A transmission shaft extending to the right side of the right support plate is provided on the left side of the left support plate. A first bevel gear is provided at the bottom of each of the two first threaded rods. A second bevel gear meshing with the two first bevel gears is provided on both the left and right sides of the transmission shaft. Two horizontal plates are provided between the two support plates, located on the upper and lower sides of the transmission shaft respectively. The transmission shaft has a first drive assembly on its outer side, one end of which is movably connected to the bottom of the top horizontal plate and the other end of which extends to the bottom of the bottom horizontal plate. A controller is provided on the front right side of the worktable. Mounting blocks are provided on the top left and right sides of the pressure plate. Slide grooves are provided on opposite sides of the two mounting blocks. A moving block is provided between the two slide grooves. A first strip hole is provided on the top of the pressure plate below the moving block. A cutter is provided at the bottom of the moving block, one end of which extends into the first strip hole. A second strip hole is provided on the top of the worktable below the cutter. Two connecting plates are provided above the moving block and are symmetrically distributed vertically. A threaded sleeve is provided on the top left and right sides of the top of the top connecting plate, one end of which extends to the bottom of the bottom connecting plate. A second threaded rod is provided inside the two threaded sleeves, one end of which extends to its bottom and is fixedly connected to the top of the moving block. A second drive assembly is provided on the top of the top connecting plate, one end of which extends to its bottom and is fixedly connected to the outer side of the two threaded sleeves.

[0007] Preferably, the first drive assembly includes a first servo motor, the first servo motor is fixedly installed at the bottom of the bottom horizontal plate, the output shaft of the first servo motor extends to the top of the bottom horizontal plate and is fixedly installed with a worm gear located behind the transmission shaft and movably connected at one end to the bottom of the top horizontal plate, and a worm wheel located between two support plates and meshing with the worm gear at one end is fixedly installed on the outside of the transmission shaft.

[0008] Preferably, the second drive assembly includes a second servo motor. The top of the top connecting plate is fixedly mounted with the second servo motor located between the two threaded sleeves. The output shaft of the second servo motor extends to the bottom of the top connecting plate and is fixedly mounted with a drive gear. The outer sides of the two threaded sleeves are fixedly mounted with driven gears located between the two connecting plates and one end of which meshes with the drive gear.

[0009] Preferably, a first bearing is fixedly installed at the bottom of both connecting blocks, and the first threaded rod is rotatably connected to the bottom of the connecting block through the first bearing.

[0010] Preferably, rectangular slots adapted to the moving trajectories of the two traction blocks are provided on opposite sides of the two mounting plates, and threaded holes adapted to the two first threaded rods are provided inside the two traction blocks.

[0011] Preferably, a second bearing is fixedly installed at the bottom of the top horizontal plate, and the worm gear is rotatably connected to the bottom of the top horizontal plate through the second bearing.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a paper pressing mechanism for a printing paper cutter, which has the following beneficial effects:

[0014] This printing paper cutter uses a paper pressing mechanism. By placing the paper to be cut on top of the worktable and below the cutter, once the paper is positioned, the first servo motor is activated to drive the worm gear to rotate. This worm gear then drives the transmission shaft and two second bevel gears to rotate. The two first bevel gears then drive the two first threaded rods to rotate. Finally, two traction blocks move the pressure plate downwards until the bottom of the pressure plate is tightly pressed against the top of the paper. This presses and fixes the paper firmly, preventing deformation or slippage during cutting and improving the cutting effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial top-view cross-sectional diagram of the pressure plate of this utility model.

[0017] In the diagram: 1. Workbench, 2. Support plate, 3. Mounting plate, 4. Connecting block, 5. First threaded rod, 6. Pressure plate, 7. Traction block, 8. Transmission shaft, 9. First bevel gear, 10. Second bevel gear, 11. Horizontal plate, 12. First drive assembly, 121. First servo motor, 122. Worm gear, 123. Worm wheel, 13. Controller, 14. Mounting block, 15. Slide groove, 16. Moving block, 17. First strip hole, 18. Cutter, 19. Second strip hole, 20. Connecting plate, 21. Threaded sleeve, 22. Second threaded rod, 23. Second drive assembly, 231. Second servo motor, 232. Drive gear, 233. Driven gear. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2 This utility model provides a technical solution: a paper pressing mechanism for a printing paper cutter, including a worktable 1. Support plates 2 are fixedly installed on the left and right sides of the bottom of the worktable 1, and mounting plates 3 are fixedly installed on the left and right sides of the top of the worktable 1. Connecting blocks 4 are fixedly installed on the top of the opposite sides of the two mounting plates 3. A first threaded rod 5 extending to the bottom of the two connecting blocks 4 is movably installed at the bottom of each connecting block 4. The two first threaded rods 5 are located on the opposite sides of the two support plates 2, and a first bearing is fixedly installed at the bottom of each connecting block 4. The first bearing is rotatably connected to the bottom of the connecting block 4. A pressure plate 6 is movably installed between the two mounting plates 3. A traction block 7 is fixedly installed on both the left and right sides of the pressure plate 6, with one end extending to the opposite side of the two mounting plates 3 and threadedly connected to the outer side of the two first threaded rods 5 respectively. Rectangular slots adapted to the moving trajectory of the two traction blocks 7 are opened on the opposite sides of the two mounting plates 3 respectively. The front and rear sides of the traction block 7 are movably connected to the front and rear sides of the inner wall of the rectangular slots respectively. Threaded holes adapted to the two first threaded rods 5 are opened inside the two traction blocks 7 respectively.

[0020] A drive shaft 8 extending to the right side of the right support plate 2 is movably mounted on the left side of the left support plate 2. A first bevel gear 9 is fixedly mounted at the bottom of each of the two first threaded rods 5. A second bevel gear 10, with one end meshing with each of the two first bevel gears 9, is fixedly mounted on both sides of the drive shaft 8. Two horizontal plates 11, located above and below the drive shaft 8 respectively, are fixedly mounted between the two support plates 2. A first drive assembly 12, with one end movably connected to the bottom of the top horizontal plate 11 and the other end extending to the bottom of the bottom horizontal plate 11, is fixedly mounted on the outside of the drive shaft 8. The first drive assembly 12 includes a first servo motor 121. A first servo motor 121 is fixedly installed at the bottom of the worktable 1. The model of the first servo motor 121 can be MR-J2S-10A. The output shaft of the first servo motor 121 extends to the top of the bottom horizontal plate 11 and is fixedly installed with a worm gear 122 located behind the transmission shaft 8 and movably connected to the bottom of the top horizontal plate 11 at one end. A second bearing is fixedly installed at the bottom of the top horizontal plate 11. The worm gear 122 is rotatably connected to the bottom of the top horizontal plate 11 through the second bearing. A worm wheel 123 located between the two support plates 2 and meshing with the worm gear 122 at one end is fixedly installed on the outside of the transmission shaft 8. A controller 13 is fixedly installed at the front right end of the worktable 1.

[0021] Mounting blocks 14 are fixedly installed on the top left and right sides of the pressure plate 6. Slide grooves 15 are opened on the opposite sides of the two mounting blocks 14. A movable block 16 is movably installed between the two slide grooves 15. A first strip hole 17 is opened on the top of the pressure plate 6, located below the movable block 16. A cutter 18 with one end extending into the first strip hole 17 is fixedly installed on the bottom of the movable block 16. A second strip hole 19 is opened on the top of the workbench 1, located below the cutter 18.

[0022] Two connecting plates 20, symmetrically arranged vertically, are fixedly installed above the movable block 16 between the two mounting blocks 14. Threaded sleeves 21, extending to the bottom of the bottom connecting plate 20, are movably installed on both the left and right sides of the top of the top connecting plate 20. Mounting holes are provided on both the left and right sides of the top of the two connecting plates 20, and third bearings are fixedly installed inside each of the four mounting holes. The threaded sleeves 21 are rotatably connected to the connecting plates 20 via the third bearings. A second threaded rod 22, extending to its bottom and fixedly connected to the top of the movable block 16, is threadedly connected to the inside of each of the two threaded sleeves 21. A second drive assembly 23, including a second servo motor 231, is fixedly installed between the two threaded sleeves 21 on the top of the top connecting plate 20. The second servo motor 231 can be of model I. HSS57-36-20, the output shaft of the second servo motor 231 extends to the bottom of the top connecting plate 20 and is fixedly mounted with a drive gear 232. The outer sides of the two threaded sleeves 21 are fixedly mounted with driven gears 233 located between the two connecting plates 20 and one end meshing with the drive gear 232. All electrical components mentioned in the text are electrically connected to the controller 13 and the 220V mains power.

[0023] In use, the paper to be cut is placed on top of the workbench 1 and below the cutter 18. After the paper is positioned, the controller 13 starts the first servo motor 121 to drive the worm gear 122 to rotate, which in turn drives the transmission shaft 8 and the two second bevel gears 10 to rotate via the worm wheel 123. The two first bevel gears 9 then drive the two first threaded rods 5 to rotate, and finally the two traction blocks 7 drive the pressure plate 6 to move downwards until the bottom of the pressure plate 6 is tightly pressed against the top of the paper, thereby pressing and fixing the paper. This avoids deformation or slippage of the paper during cutting, thereby improving the cutting effect. Then, the controller 13 can start the second servo motor 231 to drive the drive gear 232 to rotate, which in turn drives the two threaded sleeves 21 to rotate through the two driven gears 233. During the rotation of the two threaded sleeves 21, the two second threaded rods 22 will move downward, thereby driving the moving block 16 and the cutter 18 to move downward, so that the cutter 18 extends downward from the inside of the first strip hole 17 to cut the paper.

[0024] In summary, the paper pressing mechanism of this printing paper cutter works by placing the paper to be cut on top of the worktable 1 and below the cutter 18. After the paper is positioned, the first servo motor 121 is started to drive the worm gear 122 to rotate, which in turn drives the transmission shaft 8 and two second bevel gears 10 to rotate via the worm wheel 123. Then, the two first bevel gears 9 drive the two first threaded rods 5 to rotate, and finally, the two traction blocks 7 drive the pressure plate 6 to move downwards until the bottom of the pressure plate 6 is tightly pressed against the top of the paper, thereby pressing and fixing the paper as a whole. This prevents the paper from deforming or slipping during cutting, thus improving the cutting effect. It solves the problem that many existing printing paper cutters do not have the function of pressing the paper, which causes the paper to easily deform and slip due to the pressure of the cutter, resulting in uneven cuts and making the machine unusable.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper pressing mechanism for a printing paper cutter, comprising a worktable (1), wherein support plates (2) are provided on both the left and right sides of the bottom of the worktable (1), characterized in that: Mounting plates (3) are provided on the top left and right sides of the workbench (1). Connecting blocks (4) are provided on the top of the opposite sides of the two mounting plates (3). A first threaded rod (5) extending to the bottom of the workbench (1) is provided at the bottom of the two connecting blocks (4). The two first threaded rods (5) are located on the opposite sides of the two support plates (2). A pressure plate (6) is provided between the two mounting plates (3). A traction block (7) is provided on the left and right sides of the pressure plate (6), with one end extending to the opposite side of the two mounting plates (3) and threadedly connected to the outer side of the two first threaded rods (5). The left side of the pressure plate (6) is provided with a traction block (7). A drive shaft (8) extending to the right side of the right support plate (2) is provided on the left side of the support plate (2). A first bevel gear (9) is provided at the bottom of each of the two first threaded rods (5). A second bevel gear (10) is provided on both the left and right sides of the drive shaft (8), with one end meshing with the two first bevel gears (9). Two horizontal plates (11) are provided between the two support plates (2) and located on the upper and lower sides of the drive shaft (8). A first drive assembly (1) is provided on the outer side of the drive shaft (8), with one end movably connected to the bottom of the top horizontal plate (11) and the other end extending to the bottom of the bottom horizontal plate (11). 2) A controller (13) is provided on the front right end of the workbench (1). Mounting blocks (14) are provided on both the left and right sides of the top of the pressure plate (6). Slide grooves (15) are provided on opposite sides of the two mounting blocks (14). A moving block (16) is provided between the two slide grooves (15). A first strip hole (17) is provided on the top of the pressure plate (6) below the moving block (16). A cutter (18) is provided at the bottom of the moving block (16) with one end extending into the first strip hole (17). A second strip hole (18) is provided on the top of the workbench (1) below the cutter (18). 9) A connecting plate (20) is provided between the two mounting blocks (14) above the moving block (16) and is symmetrically distributed vertically. A threaded sleeve (21) is provided on the top left and right sides of the top of the top connecting plate (20) and extends to the bottom of the bottom connecting plate (20). A second threaded rod (22) is provided inside the two threaded sleeves (21) and extends to the bottom and is fixedly connected to the top of the moving block (16). A second drive assembly (23) is provided on the top of the top connecting plate (20) and extends to the bottom and is fixedly connected to the outside of the two threaded sleeves (21).

2. The paper pressing mechanism for a printing paper cutter according to claim 1, characterized in that: The first drive assembly (12) includes a first servo motor (121). The first servo motor (121) is fixedly installed at the bottom of the bottom horizontal plate (11). The output shaft of the first servo motor (121) extends to the top of the bottom horizontal plate (11) and is fixedly installed with a worm gear (122) located behind the transmission shaft (8) and movably connected at one end to the bottom of the top horizontal plate (11). A worm wheel (123) is fixedly installed on the outside of the transmission shaft (8) between the two support plates (2) and meshes with the worm gear (122) at one end.

3. The paper pressing mechanism for a printing paper cutter according to claim 1, characterized in that: The second drive assembly (23) includes a second servo motor (231). The top of the top connecting plate (20) is fixedly mounted with the second servo motor (231) located between two threaded sleeves (21). The output shaft of the second servo motor (231) extends to the bottom of the top connecting plate (20) and is fixedly mounted with a drive gear (232). The outer sides of the two threaded sleeves (21) are fixedly mounted with driven gears (233) located between the two connecting plates (20) and one end of which meshes with the drive gear (232).

4. The paper pressing mechanism for a printing paper cutter according to claim 1, characterized in that: The bottom of each of the two connecting blocks (4) is fixedly equipped with a first bearing, and the first threaded rod (5) is rotatably connected to the bottom of the connecting block (4) through the first bearing.

5. The paper pressing mechanism for a printing paper cutter according to claim 1, characterized in that: The two mounting plates (3) are provided with rectangular slots on opposite sides that are adapted to the movement trajectories of the two traction blocks (7), and the interiors of the two traction blocks (7) are provided with threaded holes that are adapted to the two first threaded rods (5).

6. The paper pressing mechanism for a printing paper cutter according to claim 2, characterized in that: A second bearing is fixedly installed at the bottom of the top horizontal plate (11), and the worm (122) is rotatably connected to the bottom of the top horizontal plate (11) through the second bearing.

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