Cutting device of digital printing machine
By using a motor-driven movable rod and a cylinder to push the fixed plate to automatically adjust the position of the cutting blade, the problem of low efficiency in manually adjusting the position of the cutting blade in the existing technology is solved, and the cutting device of the digital printing press can quickly adapt to different paper specifications and improve cutting accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING JINCHENG DIGITAL PRINTING CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-19
AI Technical Summary
Existing digital printing press cutting devices require manual adjustment of the cutting blade position, resulting in low production efficiency, inability to quickly adapt to different paper specifications, and impact on production continuity and equipment versatility.
The machine uses a motor-driven movable rod and a cylinder to push the fixed plate, which realizes the automatic adjustment of the cutting blade. The paper is clamped by a hydraulic cylinder to ensure cutting accuracy and stability.
It enables rapid adjustment of the cutting blade position, improves the versatility and production efficiency of the equipment, reduces adjustment time, and ensures the accuracy and stability of cutting.
Smart Images

Figure CN224255430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of digital printing machine technology, and in particular to a cutting device for a digital printing machine. Background Technology
[0002] Digital printing presses are a type of modern printing equipment that uses a prepress system to directly convert graphic information into printed materials, eliminating the need for film and printing plates in traditional printing. This printing method simplifies the process and is characterized by speed, practicality, economy, and suitability for short-run color printing.
[0003] In existing digital printing press technology, the position of the cutting blade usually needs to be adjusted manually, which is not only time-consuming but also inefficient. When processing orders with different paper sizes, frequent manual adjustment of the cutting blade not only increases the labor intensity of operators but also prolongs the adjustment time of the production line, thereby affecting the overall production efficiency and equipment versatility. When changing paper sizes, the machine needs to be stopped for tedious adjustment work. This design not only affects the continuity and stability of production but also fails to meet the market's demand for quick plate changes and flexible adaptation to various paper sizes. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a digital printing machine cutting device, which aims to improve the problem that the position of the cutting blade is inconvenient to adjust in the existing digital printing machine cutting device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for a digital printing machine, comprising a base, with fixed seats fixedly connected to both upper sides of the base, guide rods fixedly connected inside the two fixed seats, and movable blocks slidably connected to the outside of the two guide rods, a mounting plate fixedly connected to the front of the front fixed seat, a motor fixedly connected to the front of the mounting plate, one end of a movable rod fixedly connected to the output end of the motor, one end of a movable rod rotatably connected to the other end of the movable rod rotatably connected to the front of the movable block, connecting plates fixedly connected to opposite sides of the two movable blocks, a fixed frame fixedly connected to the upper part of the two connecting plates, a cylinder fixedly connected to the rear of the fixed frame, a fixed plate fixedly connected to the output end of the cylinder, and a cutting assembly fixedly connected to the bottom of the fixed plate, the cutting assembly being used to cut paper.
[0006] Furthermore, hydraulic cylinders are fixedly connected to both sides of the base, and clamping plates are fixedly connected to the output ends of the two hydraulic cylinders. Limiting seats are fixedly connected to both sides of the upper part of the base, and moving rods are fixedly connected to the sides of the two clamping plates that are far apart from each other. Multiple moving rods are slidably connected inside the limiting seats.
[0007] Furthermore, the cutting assembly includes an electric push rod and a cutting blade, the electric push rod being fixedly connected to the bottom of the fixed plate, and the cutting blade being fixedly connected to the output end of the electric push rod.
[0008] Furthermore, sliding rods are fixedly connected to both sides of the inner side of the fixing frame, and a slider is fixedly connected to the upper part of the fixing plate, with the slider slidably connected to the outside of the sliding rods.
[0009] Furthermore, both of the movable blocks are slidably connected inside the fixed base, and both of the connecting plates are slidably connected inside the fixed base.
[0010] Furthermore, the fixing frame is slidably connected to the upper part of the base, and the cutting blade is slidably connected to the upper part of the base.
[0011] Furthermore, both clamps are slidably connected to the upper part of the base.
[0012] Furthermore, each of the multiple movable rods is fixedly connected to a limiting rod on both sides, and the multiple limiting rods are slidably connected inside the limiting seat.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the starting motor drives the first and second movable rods to rotate, causing the moving block to slide along the guide rod, thereby driving the fixed frame to move back and forth on the base. The cylinder pushes the fixed plate to adjust the position of the cutting blade, and the electric push rod controls the cutting blade to press down to complete the cutting. This allows for quick adjustment of the cutting blade position to adapt to different paper specifications, reducing adjustment time and improving the versatility of the equipment.
[0015] 2. In this utility model, by activating the hydraulic cylinder, the clamping plate is pushed to move, and the clamping plate drives the moving rod to slide along the limit seat, so that the clamping plates on both sides move closer to clamp the paper at the same time, thereby effectively fixing the paper, ensuring stability and no deviation during cutting, and improving cutting accuracy. Attached Figure Description
[0016] Figure 1 This is a front view of a digital printing press cutting device proposed in this utility model;
[0017] Figure 2 This is a top view of a cutting device for a digital printing machine according to the present invention;
[0018] Figure 3 This is a partial structural schematic diagram of a cutting device for a digital printing machine proposed in this utility model;
[0019] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0020] Legend:
[0021] 1. Base; 2. Fixed seat; 3. Mounting plate; 4. Motor; 5. Movable rod one; 6. Movable rod two; 7. Moving block; 8. Guide rod; 9. Connecting plate; 10. Fixed frame; 11. Cylinder; 12. Fixed plate; 13. Electric push rod; 14. Cutting knife; 15. Hydraulic cylinder; 16. Clamping plate; 17. Limit seat; 18. Moving rod. Detailed Implementation
[0022] 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.
[0023] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a digital printing machine cutting device, comprising a base 1, with fixed seats 2 fixedly connected to both sides of the upper part of the base 1. Guide rods 8 are fixedly connected inside each of the two fixed seats 2, and movable blocks 7 are slidably connected to the outside of each of the two guide rods 8. A mounting plate 3 is fixedly connected to the front of the front fixed seat 2, and a motor 4 is fixedly connected to the front of the mounting plate 3. One end of a movable rod 5 is fixedly connected to the output end of the motor 4, and one end of a movable rod 6 is rotatably connected to the other end of the movable rod 5. The other end of the movable rod 6 is rotatably connected to the front of the front movable block 7. Connecting plates 9 are fixedly connected to opposite sides of each of the two movable blocks 7, and fixed frames 10 are fixedly connected to the upper parts of each of the two connecting plates 9. A cylinder 11 is fixedly connected to the rear. A fixed plate 12 is fixedly connected to the output end of the cylinder 11. A cutting assembly is fixedly connected to the bottom of the fixed plate 12. The cutting assembly is used to cut the paper. The cutting assembly includes an electric push rod 13 and a cutting blade 14. The electric push rod 13 is fixedly connected to the bottom of the fixed plate 12. The cutting blade 14 is fixedly connected to the output end of the electric push rod 13. Slide rods are fixedly connected to both sides inside the fixed frame 10. A slider is fixedly connected to the upper part of the fixed plate 12. The slider is slidably connected to the outside of the slide rod. Two moving blocks 7 are slidably connected to the inside of the fixed base 2. Two connecting plates 9 are slidably connected to the inside of the fixed base 2. The fixed frame 10 is slidably connected to the upper part of the base 1. The cutting blade 14 is slidably connected to the upper part of the base 1.
[0024] Start motor 4, which drives movable rod 5 and movable rod 6 to rotate accordingly. As movable rod 6 rotates, the front moving block 7 slides smoothly along the outside of guide rod 8. Guide rod 8 provides a sliding track for moving block 7, ensuring that moving block 7 can move smoothly and accurately. The sliding of moving block 7 then drives connecting plate 9 and fixed frame 10 to move synchronously. At the same time, the rear moving block 7 also slides outside of guide rod 8. With the cooperation of this series of actions, fixed frame 10 can move back and forth on the upper part of base 1. Next, start cylinder 11, whose output end pushes fixed plate 12 to move. The movement of fixed plate 12 further drives electric push rod 13 and cutting blade 14 to move as a whole. When electric push rod 13 is started, its output end pushes cutting blade 14 downward to perform cutting action.
[0025] Reference Figure 2 and Figure 3 Hydraulic cylinders 15 are fixedly connected to both sides of the base 1. Clamping plates 16 are fixedly connected to the output ends of the two hydraulic cylinders 15. Limiting seats 17 are fixedly connected to both sides of the upper part of the base 1. Moving rods 18 are fixedly connected to the side of the two clamping plates 16 that are far apart. Multiple moving rods 18 are slidably connected inside the limiting seats 17. The two clamping plates 16 are slidably connected to the upper part of the base 1. Limiting rods are fixedly connected to both sides of the multiple moving rods 18. Multiple limiting rods are slidably connected inside the limiting seats 17.
[0026] The paper to be cut is placed flat between two clamping plates 16. Then, the hydraulic cylinder 15 is activated, and its output end pushes the clamping plates 16 to move synchronously. During the movement of the clamping plates 16, the moving rod 18 is driven to slide smoothly within the limiting seat 17. The limiting seat 17 provides a guiding and restricting channel for the moving rod 18, ensuring that the moving rod 18 slides on a fixed track and maintains the stability and accuracy of the movement. The moving rod 18 slides inside the limiting seat 17, transmitting power and ensuring that the movement trajectory of the clamping plates 16 is correct. As the moving rod 18 slides, the limiting rod connected to it also moves synchronously inside the limiting seat 17. Under the coordinated action of multiple moving rods 18, the two clamping plates 16 gradually move closer together. The clamping plates 16 are the main components used to fix the paper. The movement of the clamping plates 16 clamps the paper to prevent it from moving during the cutting process.
[0027] Working principle: First, the paper to be cut is placed between two clamping plates 16. Then, the hydraulic cylinder 15 is activated, and its output pushes the clamping plates 16 to move. As the clamping plates 16 move, they cause the moving rods 18 to slide inside the limiting seat 17. When the moving rods 18 move, they cause the limiting rods to move synchronously inside the limiting seat 17. Under the action of multiple moving rods 18, the two clamping plates 16 move closer together until the paper is fixed. This facilitates the fixing of the paper and ensures that it will not move during the cutting process, guaranteeing precise alignment and improving cutting accuracy. The motor 4 is then activated, and its output drives the movable rod 5 and movable rod 6 to rotate. When movable rod 6 rotates, it causes the movable rod 5 to move closer together. The front moving block 7 slides outside the guide rod 8. The sliding of the moving block 7 drives the connecting plate 9 and the fixed frame 10 to slide. The rear moving block 7 slides synchronously outside the guide rod 8. Under the action of the two moving blocks 7, the fixed frame 10 moves back and forth on the upper part of the base 1. The cylinder 11 is activated. The output end of the cylinder 11 pushes the fixed plate 12 to move. The fixed plate 12 drives the electric push rod 13 and the cutting blade 14 to move. The electric push rod 13 is activated. The output end of the electric push rod 13 pushes the cutting blade 14 downward to cut. This makes it easy to adjust the position of the cutting blade 14, which can quickly adapt to different paper sizes, reduce the adjustment time of the cutting blade 14, and increase the versatility and applicability of the equipment.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cutting device for a digital printing machine, comprising a base (1), characterized in that: The base (1) has fixed seats (2) fixedly connected to both sides of its upper part. Guide rods (8) are fixedly connected inside each of the two fixed seats (2). Moving blocks (7) are slidably connected to the outside of each of the two guide rods (8). A mounting plate (3) is fixedly connected to the front of the front fixed seat (2). A motor (4) is fixedly connected to the front of the mounting plate (3). One end of a movable rod (5) is fixedly connected to the output end of the motor (4). The other end of the movable rod (5) is rotatably connected to a movable rod (6). One end of the movable rod (6) is rotatably connected to the front of the moving block (7). A connecting plate (9) is fixedly connected to the opposite side of the two moving blocks (7). A fixing frame (10) is fixedly connected to the upper part of the two connecting plates (9). A cylinder (11) is fixedly connected to the rear part of the fixing frame (10). A fixing plate (12) is fixedly connected to the output end of the cylinder (11). A cutting component is fixedly connected to the bottom of the fixing plate (12). The cutting component is used to cut the paper.
2. The cutting device for a digital printing machine according to claim 1, characterized in that: Hydraulic cylinders (15) are fixedly connected to both sides of the base (1), and clamping plates (16) are fixedly connected to the output ends of the two hydraulic cylinders (15). Limiting seats (17) are fixedly connected to both sides of the upper part of the base (1). Moving rods (18) are fixedly connected to the side of the two clamping plates (16) that are far apart from each other. Multiple moving rods (18) are slidably connected inside the limiting seats (17).
3. The cutting device for a digital printing machine according to claim 1, characterized in that: The cutting assembly includes an electric push rod (13) and a cutting blade (14). The electric push rod (13) is fixedly connected to the bottom of the fixed plate (12), and the cutting blade (14) is fixedly connected to the output end of the electric push rod (13).
4. The cutting device for a digital printing machine according to claim 3, characterized in that: The fixed frame (10) has sliding rods fixedly connected to both sides inside, and a slider is fixedly connected to the upper part of the fixed plate (12), and the slider is slidably connected to the outside of the sliding rods.
5. A cutting device for a digital printing machine according to claim 1, characterized in that: Both of the movable blocks (7) are slidably connected inside the fixed base (2), and both of the connecting plates (9) are slidably connected inside the fixed base (2).
6. A cutting device for a digital printing machine according to claim 3, characterized in that: The fixing frame (10) is slidably connected to the upper part of the base (1), and the cutting blade (14) is slidably connected to the upper part of the base (1).
7. A cutting device for a digital printing machine according to claim 2, characterized in that: Both clamps (16) are slidably connected to the upper part of the base (1).
8. A cutting device for a digital printing machine according to claim 2, characterized in that: Both sides of the plurality of movable rods (18) are fixedly connected to limit rods, and the plurality of limit rods are slidably connected inside the limit seat (17).