Material changing and paper breaking mechanism of printing machine
By introducing a hydraulically driven clamping system and a motor-driven cutting system into the printing press, the clamping problem during paper roll replacement was solved, realizing automated paper roll fixing and cutting, reducing operational difficulty and improving equipment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-20
AI Technical Summary
Existing printing presses lack clamping and fixing functions when changing paper rolls, which increases the difficulty of operation and the intensity of work.
A paper cutting mechanism for changing materials in a printing press was designed. It uses a hydraulic cylinder to drive a toothed plate and gears to drive a bidirectional threaded rod to automatically clamp and fix the paper roll. It also uses a motor to drive a transmission shaft and a rotating wheel to drive a cutting blade to automatically cut the paper.
It reduces the workload and difficulty for operators, and improves the efficiency of paper roll changing and the degree of automation of the printing press.
Smart Images
Figure CN224013208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing press technology, and in particular to a paper-cutting mechanism for changing materials in a printing press. Background Technology
[0002] A printing press is a device used to transfer information such as text and images onto substrates such as paper, cardboard, and plastic film. It plays a vital role in many fields such as information dissemination, cultural heritage, and commercial marketing in modern society. It is mainly divided into paper feeding unit, printing unit, ink supply unit, dampening unit, and paper delivery unit.
[0003] Existing printing presses are usually semi-automatic. Operators can adjust and intervene in the printing process at any time according to the actual situation. However, when changing paper rolls later, they do not have the ability to clamp and fix the paper rolls. This means that when installing paper rolls, operators need to spend more effort and time manually straightening and positioning the paper rolls to ensure that they are installed in the correct position. This not only increases the difficulty of operation, but also reduces the efficiency of changing paper rolls and greatly increases the workload of operators. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a paper cutting mechanism for changing paper rolls in printing presses, which aims to improve the problem that existing printing presses do not have the ability to clamp and fix paper rolls when changing paper rolls in the later stages, which increases the difficulty of operation and the workload of operators.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A paper-cutting mechanism for a printing press includes a base plate. A first hydraulic cylinder is fixedly connected to the upper surface of the base plate. A housing is fixedly connected to the output end of the first hydraulic cylinder. A second hydraulic cylinder is fixedly connected to the inner bottom wall of the housing. A toothed plate is fixedly connected to the output end of the second hydraulic cylinder. The outer wall of the toothed plate is slidably connected to the inner wall of the housing. A gear is meshed with the tooth ends of the toothed plate. A bidirectional threaded rod is fixedly connected to the inner wall of the gear. A support plate is rotatably connected to the outer wall of the bidirectional threaded rod. The lower surface of the support plate is fixedly connected to the inner bottom wall of the housing. A clamping assembly is provided on the outer wall of the bidirectional threaded rod.
[0007] Preferably, the clamping assembly includes a threaded block, the inner wall of which is threadedly connected to the outer wall of the bidirectional threaded rod, a clamping block is fixedly connected to the upper surface of the threaded block, the outer wall of the threaded block is slidably connected to the inner wall of the housing, and the outer wall of the clamping block is slidably connected to the inner wall of the housing.
[0008] Preferably, the inner wall of the outer casing is provided with a first sliding groove, and the threaded block is slidably connected to the inner wall of the outer casing through the first sliding groove.
[0009] Preferably, the inner wall of the outer shell is provided with a second sliding groove, and the clamping block is slidably connected to the inner wall of the outer shell through the second sliding groove.
[0010] Preferably, a support column is fixedly connected to the upper surface of the base plate, and a sliding column is slidably connected to the inner wall of the support column, with the upper surface of the sliding column fixedly connected to the lower surface of the outer shell.
[0011] Preferably, a printing machine body is provided on the upper surface of the base plate, a first support block is fixedly connected to the outer wall of the printing machine body, a motor is fixedly connected to the inner wall of the first support block, a transmission shaft is connected to the output end of the motor, a transmission assembly is provided on the outer wall of the transmission shaft, a second support block is rotatably connected to the outer wall of the transmission shaft, a cutting blade is provided on the inner wall of the transmission assembly, and a connecting plate is fixedly connected to the outer wall of the cutting blade.
[0012] Preferably, the transmission assembly includes a first rotating wheel, the inner wall of which is fixedly connected to the outer wall of the transmission shaft, and a second rotating wheel is rotatably connected to the outer wall of the first rotating wheel. The outer wall of the cutting blade is disposed on the inner wall of the second rotating wheel.
[0013] Preferably, the outer wall of the second support block is fixedly connected to the outer wall of the printing press body.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the second hydraulic cylinder is first activated to drive the toothed plate to move, which in turn drives the gear to rotate. When the gear rotates, it will drive the bidirectional threaded rod to rotate synchronously. Since the threaded block and the bidirectional threaded rod are connected by threads, the rotation of the bidirectional threaded rod will drive the threaded block to move, which in turn drives the clamping block to move. This achieves the effect of clamping and fixing the paper roll when changing the paper roll later, preventing the paper roll from shifting and requiring the operator to spend more effort and time to manually straighten it, which greatly reduces the difficulty of operation and the intensity of work.
[0016] 2. In this utility model, the motor is first turned on to drive the transmission shaft to rotate, which in turn drives the first rotating wheel to rotate. When the first rotating wheel rotates, it will drive the second rotating wheel to rotate. The rotation of the second rotating wheel will drive the cutting blade to move up and down, thereby realizing automatic and continuous cutting of paper, improving the automation of the printing machine and increasing the efficiency of equipment use. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of a printing press material changing and paper cutting mechanism proposed in this utility model;
[0018] Figure 2 This is a partial structural diagram of the toothed plate of a paper-cutting mechanism for a printing press, as proposed in this utility model.
[0019] Figure 3 This is a schematic diagram of a partial gear structure of a paper-cutting mechanism for a printing press, as proposed in this utility model.
[0020] Figure 4 This is a partial structural diagram of the cutting blade of a paper-cutting mechanism for a printing press, as proposed in this utility model.
[0021] Legend:
[0022] 1. Base plate; 2. First hydraulic cylinder; 3. Outer shell; 4. Second hydraulic cylinder; 5. Gear plate; 6. Gear; 7. Double-sided threaded rod; 8. Threaded block; 9. Clamping block; 10. Support plate; 11. First slide groove; 12. Support column; 13. Sliding column; 14. Second slide groove; 15. Printing machine body; 16. First support block; 17. Motor; 18. Drive shaft; 19. First rotating wheel; 20. Second rotating wheel; 21. Connecting plate; 22. Cutting blade; 23. Second support block. Detailed Implementation
[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Reference Figures 1-3 An embodiment of this utility model provides a paper-cutting mechanism for changing materials in a printing press, comprising a base plate 1, a first hydraulic cylinder 2 fixedly connected to the upper surface of the base plate 1, a housing 3 fixedly connected to the output end of the first hydraulic cylinder 2, a second hydraulic cylinder 4 fixedly connected to the inner bottom wall of the housing 3, a toothed plate 5 fixedly connected to the output end of the second hydraulic cylinder 4, a toothed plate 5 slidably connected to the outer wall of the toothed plate 5 on the inner wall of the housing 3, a gear 6 meshing with the toothed end of the toothed plate 5, a bidirectional threaded rod 7 fixedly connected to the inner wall of the gear 6, a support plate 10 rotatably connected to the outer wall of the bidirectional threaded rod 7, a lower surface of the support plate 10 fixedly connected to the inner bottom wall of the housing 3, and a clamping assembly provided on the outer wall of the bidirectional threaded rod 7.
[0025] Specifically, activating the second hydraulic cylinder 4, through the fixing action of the output end of the second hydraulic cylinder 4 and the toothed plate 5, will drive the toothed plate 5 to move. The movement of the toothed plate 5 will drive the gear 6 to rotate. When the gear 6 rotates, through the fixing action of the gear 6 and the bidirectional threaded rod 7, it will drive the bidirectional threaded rod 7 to rotate. The rotation of the bidirectional threaded rod 7 will drive the threaded block 8 to move. When the threaded block 8 moves, through the fixing action of the threaded block 8 and the clamping block 9, it will drive the clamping block 9 to move. This will achieve the function of clamping and fixing the paper roll when installing the paper roll on the printing press body 15 later, avoiding the need for the operator to spend time and effort to adjust the direction of the paper roll due to positional deviation, thus reducing the workload.
[0026] Reference Figures 1-3 The clamping assembly includes a threaded block 8, the inner wall of which is threadedly connected to the outer wall of the bidirectional threaded rod 7, a clamping block 9 fixedly connected to the upper surface of the threaded block 8, the outer wall of the threaded block 8 slidably connected to the inner wall of the outer shell 3, and the outer wall of the clamping block 9 slidably connected to the inner wall of the outer shell 3; a first sliding groove 11 is provided on the inner wall of the outer shell 3, and the threaded block 8 is slidably connected to the inner wall of the outer shell 3 through the first sliding groove 11; a second sliding groove 14 is provided on the inner wall of the outer shell 3, and the clamping block 9 is slidably connected to the inner wall of the outer shell 3 through the second sliding groove 14; a support column 12 is fixedly connected to the upper surface of the base plate 1, a sliding column 13 is slidably connected to the inner wall of the support column 12, and the upper surface of the sliding column 13 is fixedly connected to the lower surface of the outer shell 3;
[0027] Specifically, the first slide 11 is used to limit the running trajectory of the threaded block 8, the second slide 14 is used to limit the running trajectory of the clamping block 9, and the support column 12 and the sliding column 13 cooperate with each other to assist the first hydraulic cylinder 2 in lifting and lowering the paper roll.
[0028] Reference Figure 1 and Figure 4 A printing machine body 15 is mounted on the upper surface of the base plate 1. A first support block 16 is fixedly connected to the outer wall of the printing machine body 15. A motor 17 is fixedly connected to the inner wall of the first support block 16. A transmission shaft 18 is connected to the output end of the motor 17. A transmission assembly is mounted on the outer wall of the transmission shaft 18. A second support block 23 is rotatably connected to the outer wall of the transmission shaft 18. A cutting blade 22 is mounted on the inner wall of the transmission assembly. A connecting plate 21 is fixedly connected to the outer wall of the cutting blade 22. The transmission assembly includes a first rotating wheel 19. The inner wall of the first rotating wheel 19 is fixedly connected to the outer wall of the transmission shaft 18. A second rotating wheel 20 is rotatably connected to the outer wall of the first rotating wheel 19. The outer wall of the cutting blade 22 is mounted on the inner wall of the second rotating wheel 20. The outer wall of the second support block 23 is fixedly connected to the outer wall of the printing machine body 15.
[0029] Specifically, when motor 17 is turned on, the output end of motor 17 and the fixed action of drive shaft 18 will drive drive shaft 18 to rotate. When drive shaft 18 rotates, the fixed action of drive shaft 18 and first rotating wheel 19 will drive first rotating wheel 19 to rotate. The rotation of first rotating wheel 19 drives second rotating wheel 20 to rotate. The rotation of second rotating wheel 20 drives cutting disc 22 to move up and down, thereby realizing automatic cutting of paper, realizing automated continuous production, and greatly improving the utilization rate of equipment.
[0030] Working principle: When the printing press is needed, firstly, the second hydraulic cylinder 4 is activated to move the gear plate 5. The movement of the gear plate 5 drives the gear 6 to rotate, which in turn drives the double-threaded rod 7 to rotate. The rotation of the double-threaded rod 7 then drives the threaded block 8 to move along the inner wall of the outer casing 3 via the first sliding groove 11. The movement of the threaded block 8 then drives the clamping block 9 to move, thus achieving the function of clamping and fixing the paper roll when changing materials for the printing press. Next, the motor 17 is activated. The operation of the motor 17 drives the transmission shaft 18 to rotate. The first rotating wheel 19 rotates, which in turn drives the second rotating wheel 20 to rotate. The second rotating wheel 20 then drives the cutting blade 22 to move up and down, thus achieving automatic paper cutting. In addition, the printing machine can not only clamp and fix the paper roll with the clamping block 9 to prevent displacement of the paper roll during later feeding, which would require the operator to manually adjust the direction of the paper roll and greatly reduce the workload, but also achieve automated paper cutting through the movement of the cutting blade 22, reducing labor costs and improving the working efficiency of the printing machine body 15.
[0031] 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 paper-cutting mechanism for changing materials in a printing press, comprising a base plate (1), characterized in that: A first hydraulic cylinder (2) is fixedly connected to the upper surface of the base plate (1). The output end of the first hydraulic cylinder (2) is fixedly connected to the outer shell (3). A second hydraulic cylinder (4) is fixedly connected to the inner bottom wall of the outer shell (3). A toothed plate (5) is fixedly connected to the output end of the second hydraulic cylinder (4). The outer wall of the toothed plate (5) is slidably connected to the inner wall of the outer shell (3). A gear (6) is meshed with the tooth end of the toothed plate (5). A bidirectional threaded rod (7) is fixedly connected to the inner wall of the gear (6). A support plate (10) is rotatably connected to the outer wall of the bidirectional threaded rod (7). The lower surface of the support plate (10) is fixedly connected to the inner bottom wall of the outer shell (3). A clamping assembly is provided on the outer wall of the bidirectional threaded rod (7).
2. The paper-cutting mechanism for a printing press according to claim 1, characterized in that: The clamping assembly includes a threaded block (8), the inner wall of which is threadedly connected to the outer wall of the bidirectional threaded rod (7), a clamping block (9) is fixedly connected to the upper surface of the threaded block (8), the outer wall of the threaded block (8) is slidably connected to the inner wall of the outer shell (3), and the outer wall of the clamping block (9) is slidably connected to the inner wall of the outer shell (3).
3. The printing press material changing and paper cutting mechanism according to claim 2, characterized in that: The inner wall of the outer shell (3) is provided with a first sliding groove (11), and the threaded block (8) is slidably connected to the inner wall of the outer shell (3) through the first sliding groove (11).
4. The paper-cutting mechanism for a printing press according to claim 3, characterized in that: The inner wall of the outer shell (3) is provided with a second sliding groove (14), and the clamping block (9) is slidably connected to the inner wall of the outer shell (3) through the second sliding groove (14).
5. The paper-cutting mechanism for a printing press according to claim 1, characterized in that: A support column (12) is fixedly connected to the upper surface of the base plate (1), and a sliding column (13) is slidably connected to the inner wall of the support column (12). The upper surface of the sliding column (13) is fixedly connected to the lower surface of the outer shell (3).
6. The paper-cutting mechanism for a printing press according to claim 1, characterized in that: The upper surface of the base plate (1) is provided with a printing machine body (15). The outer wall of the printing machine body (15) is fixedly connected to a first support block (16). The inner wall of the first support block (16) is fixedly connected to a motor (17). The output end of the motor (17) is connected to a transmission shaft (18). The outer wall of the transmission shaft (18) is provided with a transmission assembly. The outer wall of the transmission shaft (18) is rotatably connected to a second support block (23). The inner wall of the transmission assembly is provided with a cutting blade (22). The outer wall of the cutting blade (22) is fixedly connected to a connecting plate (21).
7. The paper-cutting mechanism for a printing press material changing according to claim 6, characterized in that: The transmission assembly includes a first rotating wheel (19), the inner wall of which is fixedly connected to the outer wall of the transmission shaft (18), and a second rotating wheel (20) is rotatably connected to the outer wall of the first rotating wheel (19). The outer wall of the cutting blade (22) is disposed on the inner wall of the second rotating wheel (20).
8. A paper-cutting mechanism for changing materials in a printing press according to claim 6, characterized in that: The outer wall of the second support block (23) is fixedly connected to the outer wall of the printing press body (15).