A printing plate for a gravure cylinder exposure mechanism

Abstract

The utility model relates to the technical field of printing machinery manufacturing technique discloses a kind of for printing intaglio cylinder exposure mechanism, including support block, the outer wall of support block is fixedly connected with connecting block, the inside fixedly connected with first hydraulic cylinder of connecting block, the output end fixedly connected with push block of first hydraulic cylinder, the outer wall fixedly connected with H-shaped block of push block, the inner wall slidingly connected with slide column of H-shaped block, the outer wall fixedly connected with limit plate of slide column, the outer wall rotationally connected with rotating sheet of limit plate, the lower surface of support block is provided with support assembly.In the utility model, through the mutual cooperation between support block, connecting block, first hydraulic cylinder, push block, H-shaped block, slide column, limit plate, rotating sheet and cylinder body, different size cylinders can be quickly adapted, the efficiency of changing version is improved, the versatility and production efficiency of equipment are enhanced, the intaglio cylinder is stably fixed during exposure process, displacement and vibration are avoided, and exposure accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of printing machinery manufacturing technology, and in particular to a printing gravure cylinder exposure mechanism. Background Technology

[0002] In the printing industry, the gravure cylinder exposure mechanism is one of the core components, and its positioning accuracy and surface properties directly affect the printing quality. As the printing industry develops towards higher precision and higher efficiency, traditional exposure technology faces challenges such as poor exposure uniformity and insufficient registration accuracy. Therefore, a new gravure cylinder exposure mechanism for printing is needed.

[0003] A search revealed a Chinese patent publication number: CN204790299U, which discloses a printing gravure cylinder exposure mechanism, including a base, a sliding groove at the bottom of the base, a pad block at one end of the base, a pad plate on the pad block, a card seat on the pad plate, a card seat with a card groove, an exposure cylinder between the card seats, an exposure cylinder with a card block, the card block being disposed in the card groove, the card block having a buckle groove, and the buckle groove being disposed in the card groove.

[0004] The aforementioned utility model allows the printing plate to be removed from the surface of the gravure cylinder and installed on the exposure cylinder. The holder supports the exposure cylinder with a locking block, thus facilitating the exposure of the printing plate and making it convenient to place the printing plate on the exposure cylinder for cleaning and repair processes. The sliding groove facilitates the sliding of the base, making it easy to transport. However, in actual use, the existence of the above-mentioned device can easily cause displacement and shaking when the cylinder rotates, affecting the exposure accuracy and registration stability. At the same time, repeated manual calibration is required when changing plates, which reduces production efficiency and increases the risk of operational errors. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gravure printing cylinder exposure mechanism, which aims to improve the problem that the cylinder rotation is prone to displacement and shaking, affecting exposure accuracy and registration stability, and that repeated manual calibration is required when changing plates, which reduces production efficiency and increases the risk of operational errors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a printing gravure cylinder exposure mechanism, comprising a support block, a connecting block fixedly connected to the outer wall of the support block, a first hydraulic cylinder fixedly connected to the inside of the connecting block, a push block fixedly connected to the output end of the first hydraulic cylinder, an H-shaped block fixedly connected to the outer wall of the push block, a sliding column slidably connected to the inner wall of the H-shaped block, a limiting plate fixedly connected to the outer wall of the sliding column, a rotating piece rotatably connected to the outer wall of the limiting plate, the inside of the rotating piece rotatably connected to the outer wall of the support block, a cylinder body being engaged with the lower surface of the limiting plate and the upper surface of the support block, and a support assembly being provided on the lower surface of the support block.

[0007] Through the above technical solution: the support block provides stable support for the connecting block, and the connecting block provides stable support for the first hydraulic cylinder. The first hydraulic cylinder drives the push block, which in turn drives the H-shaped block to move. As the H-shaped block moves, it drives the sliding column to slide on the inner wall of the H-shaped block. The H-shaped block provides a limiting function for the sliding column, which in turn drives the limiting plate to drive the rotating piece to rotate on the outer wall of the support block. The support block limits the rotating piece, and the limiting plate limits and fixes the roller body. The support block has grooves on its upper surface, which provide auxiliary support and limit function for the roller body. This achieves rapid adaptation to rollers of different sizes, improves plate changing efficiency, enhances equipment versatility and production efficiency, ensures that the gravure roller is stably fixed during the plate exposure process, avoids displacement and vibration, and guarantees exposure accuracy.

[0008] As a further description of the above technical solution:

[0009] The support assembly includes a base, the upper surface of which is fixedly connected to the lower surface of the support block, and a support plate is fixedly connected to the upper surface of the base.

[0010] The above technical solution provides fixed support for both the support block and the support plate.

[0011] As a further description of the above technical solution:

[0012] A connecting plate is fixedly connected to the outer wall of the support plate, and a fixing block is fixedly connected to the outer wall of the connecting plate.

[0013] The above technical solution provides a fixed support for the connecting plate through the support plate, which in turn provides a fixed support for the fixing block.

[0014] As a further description of the above technical solution:

[0015] The fixed block is rotatably connected to a connecting shaft, and a second hydraulic cylinder is fixedly connected to the outer wall of the connecting shaft.

[0016] The above technical solution uses a fixed block to limit the movement of the connecting shaft, which in turn limits the movement of the second hydraulic cylinder.

[0017] As a further description of the above technical solution:

[0018] The output end of the second hydraulic cylinder is fixedly connected to a U-shaped block, and a U-shaped plate is rotatably connected inside the U-shaped block.

[0019] The above technical solution involves using a second hydraulic cylinder to move a U-shaped block, which in turn moves a U-shaped plate.

[0020] As a further description of the above technical solution:

[0021] A light source is fixedly connected to the outer wall of the U-shaped plate, and a limit post is slidably connected inside the U-shaped plate.

[0022] The above technical solution uses a U-shaped plate to adjust the angle of the light source, and a limiting post that slides inside the U-shaped plate to limit its movement.

[0023] As a further description of the above technical solution:

[0024] The U-shaped plate has a limiting groove inside, and the outer wall of the limiting post is slidably connected to the inner wall of the limiting groove.

[0025] The above technical solution involves creating a limiting groove inside the U-shaped plate, which then serves to limit the movement of the limiting column.

[0026] As a further description of the above technical solution:

[0027] A fixing plate is fixedly connected to the outer wall of the limiting post, and the outer wall of the fixing plate is fixedly connected to the outer wall of the connecting plate.

[0028] The above technical solution provides a fixed support for the fixing plate through the connecting plate, which in turn provides a fixed support for the limiting column.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, through the mutual cooperation between the support block, connecting block, first hydraulic cylinder, push block, H-shaped block, sliding column, limiting plate, rotating plate and roller body, different sizes of rollers can be quickly adapted, improving plate changing efficiency, enhancing equipment versatility and production efficiency, ensuring that the gravure roller is stably fixed during the plate exposure process, avoiding displacement and vibration, and ensuring exposure accuracy.

[0031] 2. In this utility model, through the cooperation between the support plate, connecting plate, fixing block, connecting shaft, second hydraulic cylinder, U-shaped block, U-shaped plate, limiting post, limiting groove, fixing plate and light source, the angle of the light source can be precisely controlled, eliminating uneven edge exposure and dot deformation, improving the plate exposure quality, meeting the exposure uniformity requirements of high-precision printing, and significantly reducing the waste rate. Attached Figure Description

[0032] Figure 1 This is a perspective view of a gravure printing cylinder exposure mechanism proposed in this utility model;

[0033] Figure 2 This is a partial structural diagram of the base for a printing gravure cylinder exposure mechanism proposed in this utility model;

[0034] Figure 3 This is a partial structural diagram of a sliding column for a gravure printing cylinder exposure mechanism proposed in this utility model;

[0035] Figure 4 This is a partial structural diagram of a limiting groove for a printing gravure cylinder exposure mechanism proposed in this utility model.

[0036] Legend:

[0037] 1. Support block; 2. Connecting block; 3. First hydraulic cylinder; 4. Push block; 5. H-shaped block; 6. Sliding column; 7. Limiting plate; 8. Rotating piece; 9. Roller body; 10. Support assembly; 1001. Base; 1002. Support plate; 11. Connecting plate; 12. Fixing block; 13. Connecting shaft; 14. Second hydraulic cylinder; 15. U-shaped block; 16. U-shaped plate; 17. Limiting column; 18. Limiting groove; 19. Fixing plate; 20. Light source. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a printing gravure cylinder exposure mechanism, including a support block 1, a connecting block 2 fixedly connected to the outer wall of the support block 1, a first hydraulic cylinder 3 fixedly connected to the inside of the connecting block 2, a push block 4 fixedly connected to the output end of the first hydraulic cylinder 3, an H-shaped block 5 fixedly connected to the outer wall of the push block 4, a sliding column 6 slidably connected to the inner wall of the H-shaped block 5, a limiting plate 7 fixedly connected to the outer wall of the sliding column 6, a rotating piece 8 rotatably connected to the outer wall of the limiting plate 7, the inside of the rotating piece 8 rotatably connected to the outer wall of the support block 1, a cylinder body 9 being snapped onto the lower surface of the limiting plate 7 and the upper surface of the support block 1, and a support assembly 10 being provided on the lower surface of the support block 1;

[0040] Specifically, the support block 1 provides fixed support for the connecting block 2, which in turn provides fixed support for the first hydraulic cylinder 3. The first hydraulic cylinder 3 drives the push block 4, which in turn drives the H-shaped block 5 to move. As the H-shaped block 5 moves, it causes the sliding column 6 to slide on the inner wall of the H-shaped block 5, thus limiting the sliding column 6. The sliding column 6 then drives the limiting plate 7, which in turn drives the rotating piece 8 to rotate on the outer wall of the support block 1, limiting the rotating piece 8. The limiting plate 7 limits and fixes the roller body 9. The groove on the upper surface of the support block 1 provides auxiliary support and limitation for the roller body 9.

[0041] Reference Figure 2 and Figure 4 The support assembly 10 includes a base 1001, the upper surface of which is fixedly connected to the lower surface of the support block 1, and a support plate 1002 fixedly connected to the upper surface of the base 1001; a connecting plate 11 is fixedly connected to the outer wall of the support plate 1002, and a fixing block 12 is fixedly connected to the outer wall of the connecting plate 11.

[0042] Specifically, the base 1001 provides fixed support for the support block 1, the base 1001 provides fixed support for the support plate 1002, the support plate 1002 provides fixed support for the connecting plate 11, and the connecting plate 11 provides fixed support for the fixing block 12.

[0043] Reference Figure 4 A connecting shaft 13 is rotatably connected inside the fixed block 12, and a second hydraulic cylinder 14 is fixedly connected to the outer wall of the connecting shaft 13; a U-shaped block 15 is fixedly connected to the output end of the second hydraulic cylinder 14, and a U-shaped plate 16 is rotatably connected inside the U-shaped block 15; a light source 20 is fixedly connected to the outer wall of the U-shaped plate 16, and a limit post 17 is slidably connected inside the U-shaped plate 16; a limit groove 18 is formed inside the U-shaped plate 16, and the outer wall of the limit post 17 is slidably connected to the inner wall of the limit groove 18; a fixed plate 19 is fixedly connected to the outer wall of the limit post 17, and the outer wall of the fixed plate 19 is fixedly connected to the outer wall of the connecting plate 11.

[0044] Specifically, the second hydraulic cylinder 14 drives the U-shaped block 15, which in turn drives the U-shaped plate 16 to move. As the U-shaped plate 16 moves, it slides internally against the outer wall of the limiting post 17. The limiting groove 18 inside the U-shaped plate 16 then limits its movement. The U-shaped plate 16 then drives the light source 20 to adjust its angle. At the same time, the second hydraulic cylinder 14 drives the connecting shaft 13 to rotate inside the fixed block 12. The fixed block 12 limits the connecting shaft 13, which in turn limits the second hydraulic cylinder 14, thus achieving precise control of the angle of the light source 20.

[0045] Working principle: When this mechanism is needed, the roller body 9 is placed on the upper surface of the support blocks 1 on both sides of the base 1001, and then the first hydraulic cylinder 3 inside the connecting block 2 is activated. The first hydraulic cylinder 3 drives the push block 4, which in turn drives the H-shaped block 5 to move. While the H-shaped block 5 is moving, the sliding column 6 slides on the inner wall of the H-shaped block 5. Then, the sliding column 6 drives the limiting plate 7, which in turn drives the rotating piece 8 to rotate on the outer wall of the support block 1. At the same time, the limiting plate 7 limits and fixes the roller body 9, ensuring that the gravure roller body 9 is stably fixed during the exposure process, avoiding displacement and vibration, and ensuring exposure accuracy.

[0046] Then, the second hydraulic cylinder 14 is activated, which drives the U-shaped block 15 and then the U-shaped plate 16 to move. While the U-shaped plate 16 moves, it is internally slidably connected to the outer wall of the limiting post 17. The U-shaped plate 16 then drives the light source 20 to adjust its angle. At the same time, the activation of the second hydraulic cylinder 14 drives the connecting shaft 13 to rotate inside the fixed block 12, thereby limiting the second hydraulic cylinder 14 and precisely controlling the angle of the light source 20. This eliminates uneven edge exposure and dot deformation, improves the plate exposure quality, meets the exposure uniformity requirements of high-precision printing, and significantly reduces the waste rate. This mechanism can not only quickly adapt to rollers of different sizes, improve plate changing efficiency, enhance equipment versatility and production efficiency, and ensure that the gravure roller is stably fixed during the plate exposure process, avoiding displacement and vibration and ensuring exposure accuracy, but also precisely control the angle of the light source 20, eliminate uneven edge exposure and dot deformation, improve the plate exposure quality, meet the exposure uniformity requirements of high-precision printing, and significantly reduce the waste rate.

[0047] 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 printing gravure cylinder exposure mechanism, comprising a support block (1), characterized in that: The outer wall of the support block (1) is fixedly connected to a connecting block (2), the inside of the connecting block (2) is fixedly connected to a first hydraulic cylinder (3), the output end of the first hydraulic cylinder (3) is fixedly connected to a push block (4), the outer wall of the push block (4) is fixedly connected to an H-shaped block (5), the inner wall of the H-shaped block (5) is slidably connected to a sliding column (6), the outer wall of the sliding column (6) is fixedly connected to a limiting plate (7), the outer wall of the limiting plate (7) is rotatably connected to a rotating piece (8), the inside of the rotating piece (8) is rotatably connected to the outer wall of the support block (1), the lower surface of the limiting plate (7) and the upper surface of the support block (1) are both clamped to a roller body (9), and the lower surface of the support block (1) is provided with a support assembly (10).

2. The plate-exposing mechanism for a printing gravure cylinder according to claim 1, characterized in that: The support assembly (10) includes a base (1001), the upper surface of which is fixedly connected to the lower surface of the support block (1), and a support plate (1002) is fixedly connected to the upper surface of the base (1001).

3. The plate-exposing mechanism for a printing gravure cylinder according to claim 2, characterized in that: A connecting plate (11) is fixedly connected to the outer wall of the support plate (1002), and a fixing block (12) is fixedly connected to the outer wall of the connecting plate (11).

4. A printing gravure cylinder exposure mechanism according to claim 3, characterized in that: The fixed block (12) is rotatably connected to a connecting shaft (13), and a second hydraulic cylinder (14) is fixedly connected to the outer wall of the connecting shaft (13).

5. A printing gravure cylinder exposure mechanism according to claim 4, characterized in that: The output end of the second hydraulic cylinder (14) is fixedly connected to a U-shaped block (15), and the U-shaped block (15) is rotatably connected to a U-shaped plate (16).

6. A printing gravure cylinder exposure mechanism according to claim 5, characterized in that: A light source (20) is fixedly connected to the outer wall of the U-shaped plate (16), and a limit post (17) is slidably connected inside the U-shaped plate (16).

7. A printing gravure cylinder exposure mechanism according to claim 6, characterized in that: The U-shaped plate (16) has a limiting groove (18) inside, and the outer wall of the limiting post (17) is slidably connected to the inner wall of the limiting groove (18).

8. A printing gravure cylinder exposure mechanism according to claim 7, characterized in that: The outer wall of the limiting post (17) is fixedly connected to a fixing plate (19), and the outer wall of the fixing plate (19) is fixedly connected to the outer wall of the connecting plate (11).

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