A paper cutting device for printing processing with adjustable cutting size
By introducing a linkage system of motor and electric push rod into the printing equipment, the cutting blade can automatically move to the other two sides of the paper for cutting, which solves the problem of manual position switching required in the existing technology and realizes efficient multi-side cutting of paper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU YINTELI GRAPHICS EXPRESS PRINTING CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-06-16
Smart Images

Figure CN224360229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting technology, specifically to a paper cutting device for printing and processing with adjustable cutting size. Background Technology
[0002] Printing equipment is machinery that processes and embellishes printed sheets into finished printed products. There are three types of bookbinding methods: thread binding, paperback, and hardcover. Generally, it involves processes such as cutting, folding, collating (adding), book block processing, binding, cover wrapping, cutting, and packaging. Existing printed materials usually need to be trimmed after printing to remove excess edges and corners.
[0003] A known Chinese patent (application number: CN202421028989.2) discloses a printing cutter for printing equipment, including a mounting platform. A top plate is fixedly mounted on the upper surface of the mounting platform via a bracket. A lifting device is fixedly mounted on the lower surface of the top plate. A connecting frame is fixedly connected to the telescopic end of the lifting device. Two bidirectional threaded rods are rotatably connected to the inner walls of both sides of the connecting frame. A motor is fixedly mounted on the right side surface of the connecting frame, and the motor's output shaft extends into the connecting frame and is fixedly connected to the right end of the bidirectional threaded rods. This invention, by setting up cutters and pressure plates, allows the lifting device to move the connecting frame downwards, causing the mounting cylinder to drive the pressure rods and pressure plates to compact the paper on the mounting platform, preventing paper misalignment during processing. The two cutters improve the cutting efficiency of the device. The motor's operation drives the bidirectional threaded rods to rotate, causing two threaded blocks to move the two cutters respectively, allowing adjustment of the cutting distance between the two cutters.
[0004] However, in implementing the relevant technology, the above-mentioned printing cutting machine for printing equipment has the following problems: When cutting paper, the above solution uses two cutters to cut the two sides of the paper. However, if it is necessary to cut the other two sides of the paper, the operator needs to switch the position of the paper in order to cut the other two sides of the paper, which is quite troublesome and affects work efficiency. Therefore, a paper cutting device for printing processing with adjustable cutting size is proposed. Utility Model Content
[0005] This utility model proposes a paper cutting device for printing and processing with adjustable cutting size, which solves the problem in the related technology that when cutting paper, the above-mentioned solution uses two cutting blades to cut the two sides of the paper, but if it is necessary to cut the other two sides of the paper, the operator needs to switch the position of the paper in order to cut the other two sides of the paper, which is more troublesome and affects the work efficiency.
[0006] The technical solution of this utility model is as follows: A paper cutting device for printing and processing with adjustable cutting size, comprising: a worktable;
[0007] A U-shaped plate is fixedly installed on the top of the workbench. Two strip plates are fixedly installed on the inner top wall of the U-shaped plate. Two first sliding grooves are opened on one side of the two strip plates. A T-shaped plate is slidably connected inside the two first sliding grooves. A first motor is fixedly installed at the bottom of the T-shaped plate. A mounting plate is fixedly connected to the output end of the first motor.
[0008] An annular housing is fixedly installed on the inner top wall of the U-shaped plate. Two electric push rods are slidably connected inside the annular housing. Two grooves are opened opposite each other on the inner wall of the annular housing. Two protrusions are fixedly installed opposite each other on the outer walls of the two electric push rods. The two protrusions are slidably connected to the two grooves. The output ends of the two electric push rods are connected to the mounting plate.
[0009] An adjustment mechanism is located at the bottom of the mounting plate, and two cutting blades are provided on the adjustment mechanism.
[0010] Preferably, the adjustment mechanism includes two sliders disposed opposite to each other at the bottom of the mounting plate, the bottom of the two sliders being connected to the two cutting blades, and a second groove being provided at the bottom of the mounting plate, the interior of the second groove being connected to the two sliders.
[0011] Preferably, a second motor is fixedly installed on one side of the inner wall of the second slide groove, and a bidirectional lead screw is fixedly connected to the output end of the second motor. The outer wall of the bidirectional lead screw is threadedly connected to the two sliders.
[0012] Preferably, two fixing plates are fixedly installed on one side of the two cutting blades, and slide rods are slidably connected to the two fixing plates.
[0013] Preferably, a pressure plate is fixedly connected to the bottom end of the slide rod, a spring is sleeved on the outer side wall of the slide rod, the top end of the spring is connected to the two fixed plates, and the bottom end of the spring is connected to the pressure plate.
[0014] Preferably, the top of the workbench has multiple through slots, and the front side of the workbench is slidably connected to a drawer via a drawer slot, with the drawer communicating with the multiple through slots.
[0015] The working principle and beneficial effects of this utility model are as follows:
[0016] When it is necessary to cut the other two sides of the paper, the first motor is started, which drives the mounting plate to rotate. The electric push rod slides inside the annular housing, and the protrusion slides inside the groove, making the electric push rod slide more stably inside the annular housing. When the cutting blade on the mounting plate moves to the top of the other two sides of the paper, the first motor is turned off. Then, the electric push rod is started, which pushes the cutting blade on the mounting plate downward. When pushing the mounting plate, the T-shaped plate slides downward inside the first slide groove. At the same time, the cutting blade on the mounting plate cuts the other two sides of the paper. This eliminates the need for the operator to switch the position of the paper when cutting the other two sides, effectively improving work efficiency. Attached Figure Description
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;
[0019] Figure 2 This is a cross-sectional perspective view of the mounting plate proposed in this utility model.
[0020] Figure 3 This utility model proposes Figure 1 Enlarged 3D structural diagram at point A;
[0021] Figure 4 This utility model proposes Figure 2 Enlarged 3D structural diagram at point B;
[0022] In the diagram: 1. Workbench; 2. U-shaped plate; 3. Strip plate; 4. First slide rail; 5. T-shaped plate; 6. First motor; 7. Mounting plate; 8. Electric push rod; 9. Cutting knife; 10. Adjustment mechanism; 100. Slider; 101. Second slide rail; 102. Second motor; 103. Two-way lead screw; 11. Fixing plate; 12. Slide rod; 13. Pressure plate; 14. Spring; 15. Through groove; 16. Drawer; 17. Annular shell; 18. Groove; 19. Protrusion. Detailed Implementation
[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0024] Example 1
[0025] Please see Figures 1 to 4 A paper cutting device for printing and processing with adjustable cutting size, comprising: a worktable 1;
[0026] A U-shaped plate 2 is fixedly installed on the top of the workbench 1. Two strip plates 3 are fixedly installed on the inner top wall of the U-shaped plate 2. Two first sliding grooves 4 are opened on one side of the two strip plates 3. A T-shaped plate 5 is slidably connected inside the two first sliding grooves 4. A first motor 6 is fixedly installed at the bottom of the T-shaped plate 5. A mounting plate 7 is fixedly connected to the output end of the first motor 6.
[0027] An annular housing 17 is fixedly installed on the inner top wall of the U-shaped plate 2. Two electric push rods 8 are slidably connected inside the annular housing 17. Two grooves 18 are opened opposite each other on the inner wall of the annular housing 17. Two protrusions 19 are fixedly installed opposite each other on the outer walls of the two electric push rods 8. The two protrusions 19 are slidably connected to the two grooves 18. The output ends of the two electric push rods 8 are connected to the mounting plate 7.
[0028] An adjustment mechanism 10 is located at the bottom of the mounting plate 7, and two cutting blades 9 are provided on the adjustment mechanism 10.
[0029] The present invention provides a technical solution in which, when it is necessary to cut the other two sides of the paper, the first motor 6 is started, which drives the mounting plate 7 to rotate. The electric push rod 8 slides inside the annular housing 17, and the protrusion 19 slides inside the groove 18, making the sliding of the electric push rod 8 inside the annular housing 17 more stable. When the position of the cutting blade 9 on the mounting plate 7 moves above the other two sides of the paper, the first motor 6 is turned off. Then, the electric push rod 8 is started, which pushes the cutting blade 9 on the mounting plate 7 downward. When pushing the mounting plate 7, the T-shaped plate 5 slides downward inside the first slide groove 4, and the cutting blade 9 on the mounting plate 7 cuts the other two sides of the paper. This achieves the goal of cutting the other two sides of the paper without the need for the operator to switch the position of the paper, effectively improving work efficiency.
[0030] Furthermore, two fixing plates 11 are fixedly installed on one side of the two cutting blades 9. A slide rod 12 is slidably connected to the two fixing plates 11. A pressure plate 13 is fixedly connected to the bottom end of the slide rod 12. A spring 14 is sleeved on the outer wall of the slide rod 12. The top end of the spring 14 is connected to the two fixing plates 11, and the bottom end of the spring 14 is connected to the pressure plate 13.
[0031] Specifically, when the cutting blade 9 moves downward, the pressure plate 13 comes into contact with the paper, the spring 14 contracts, the slide bar 12 slides on the fixed plate 11, and the elastic properties of the spring 14 are used to press the pressure plate 13 firmly against the paper, thereby maintaining a fixed position during the cutting process and avoiding inaccurate cutting due to paper slippage or displacement.
[0032] Furthermore, the top of the workbench 1 is provided with multiple through slots 15, and the front side of the workbench 1 is slidably connected to a drawer 16 through a drawer slot, and the drawer 16 is connected to the multiple through slots 15.
[0033] Specifically, the through groove 15 facilitates the removal of cut waste material into the interior of the drawer 16, and the drawer 16 collects the waste material. By pulling the drawer 16 out of the drawer groove, the waste material collected inside the drawer 16 can be removed.
[0034] Example 2
[0035] Based on Embodiment 1, in this embodiment: the adjustment mechanism 10 includes two sliders 100 disposed opposite to each other at the bottom of the mounting plate 7. The bottom of the two sliders 100 is connected to the two cutting blades 9. A second groove 101 is provided at the bottom of the mounting plate 7. The interior of the second groove 101 is connected to the two sliders 100. A second motor 102 is fixedly installed on one side of the inner wall of the second groove 101. A bidirectional lead screw 103 is fixedly connected to the output end of the second motor 102. The outer wall of the bidirectional lead screw 103 is threadedly connected to the two sliders 100.
[0036] The technical solution provided in this embodiment is as follows: by starting the second motor 102, the second motor 102 drives the bidirectional lead screw 103 to rotate inside the second slide groove 101, and the two sliders 100 slide inside the second slide groove 101 in conjunction, so that the two cutting blades 9 move closer or further apart, which is used to adjust the distance between the two cutting blades 9, so as to facilitate cutting paper of different sizes.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A paper cutting device for printing and processing with adjustable cutting size, characterized in that, include: Workbench (1); A U-shaped plate (2) is fixedly installed on the top of the workbench (1). Two strip plates (3) are fixedly installed on the inner top wall of the U-shaped plate (2). Two first sliding grooves (4) are opened on one side of the two strip plates (3). A T-shaped plate (5) is slidably connected inside the two first sliding grooves (4). A first motor (6) is fixedly installed at the bottom of the T-shaped plate (5). A mounting plate (7) is fixedly connected to the output end of the first motor (6). An annular housing (17) is fixedly installed on the inner top wall of the U-shaped plate (2). Two electric push rods (8) are slidably connected inside the annular housing (17). Two grooves (18) are opened opposite each other on the inner wall of the annular housing (17). Two protrusions (19) are fixedly installed opposite each other on the outer walls of the two electric push rods (8). The two protrusions (19) are slidably connected to the two grooves (18). The output ends of the two electric push rods (8) are connected to the mounting plate (7). An adjustment mechanism (10) is provided at the bottom of the mounting plate (7), and two cutting blades (9) are provided on the adjustment mechanism (10).
2. The paper cutting device for printing and processing with adjustable cutting size according to claim 1, characterized in that: The adjustment mechanism (10) includes two sliders (100) disposed opposite to each other at the bottom of the mounting plate (7). The bottom of the two sliders (100) is connected to the two cutting blades (9). A second groove (101) is provided at the bottom of the mounting plate (7). The interior of the second groove (101) is connected to the two sliders (100).
3. The paper cutting device for printing and processing with adjustable cutting size according to claim 2, characterized in that: A second motor (102) is fixedly installed on one side of the inner wall of the second slide groove (101). A bidirectional lead screw (103) is fixedly connected to the output end of the second motor (102). The outer wall of the bidirectional lead screw (103) is threadedly connected to the two sliders (100).
4. The paper cutting device for printing and processing with adjustable cutting size according to claim 1, characterized in that: Two fixing plates (11) are fixedly installed on one side of the two cutting blades (9), and slide rods (12) are slidably connected on the two fixing plates (11).
5. The paper cutting device for printing and processing with adjustable cutting size according to claim 4, characterized in that: The bottom end of the slide rod (12) is fixedly connected to a pressure plate (13), and a spring (14) is sleeved on the outer side wall of the slide rod (12). The top end of the spring (14) is connected to the two fixed plates (11), and the bottom end of the spring (14) is connected to the pressure plate (13).
6. The paper cutting device for printing and processing with adjustable cutting size according to claim 1, characterized in that: The top of the workbench (1) is provided with multiple through slots (15), and the front side of the workbench (1) is slidably connected to a drawer (16) through a drawer slot. The drawer (16) is connected to the multiple through slots (15).