Multi-layer printing cylinder device capable of improving adhesion uniformity of printing ink
By combining a hydraulically driven pressure roller and a motor-driven doctor blade, the problem of uneven ink adhesion on different materials in multi-layer printing roller devices is solved, thereby improving the uniformity and printing quality of printed materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU CHENXU PACKAGE PRINTING CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
Existing multi-layer printing roller devices are difficult to adapt to the differences in thickness and hardness of different printing materials, resulting in uneven ink adhesion and affecting printing quality.
An adjustable pressure roller driven by a hydraulic cylinder, combined with a motor-driven doctor blade, enables dynamic adjustment of pressure and ink distribution, ensuring uniform ink transfer during the printing process.
It achieves uniform ink distribution on printed materials, improves printing quality and visual effects, extends the life of printing plates, and reduces printing costs.
Smart Images
Figure CN224170653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing technology, and in particular to a multi-layer printing roller device for improving the uniformity of ink adhesion. Background Technology
[0002] Multilayer printing roller devices for improving ink adhesion uniformity are used in printing equipment to improve ink coating effects. They typically employ materials with good ink affinity, such as specially surface-treated metals or polymers. These materials allow the ink to spread evenly on the roller surface, reducing ink aggregation or splattering and contributing to improved ink transfer uniformity. 一 Generally made of materials with elasticity and cushioning properties, such as rubber or elastic resin, this layer can buffer pressure during printing, so that when the cylinder comes into contact with the printing plate or substrate, the pressure can be evenly distributed, avoiding uneven ink adhesion caused by local pressure abnormalities. Some layers or structures in a multi-layer printing cylinder device can store a certain amount of ink and continuously and evenly transfer the ink to the printing plate or substrate during the printing process.
[0003] Multi-layer printing cylinder devices that improve ink adhesion uniformity can adapt to different printing materials, such as paper, plastic film, and leather, which vary in thickness, hardness, and surface characteristics. By adjusting the pressure rollers, the pressure between the printing cylinder and the material can be precisely adjusted according to the specific material characteristics. For thicker or harder materials, the pressure can be increased to ensure sufficient ink transfer; for thin and soft materials, the pressure can be appropriately reduced to avoid damaging the material or excessive ink penetration. This achieves uniform ink adhesion on various materials, improving print quality. During the printing process, different patterns, text, or images require different ink adhesion amounts and pressures. For example, printing large solid areas requires greater pressure to ensure uniform ink coverage, while printing fine dots or lines requires less pressure to prevent dot gain or line distortion.
[0004] In multi-layer printing cylinder devices designed to improve ink adhesion uniformity, the pressure roller may struggle to adapt to different materials and substrates, such as paper, plastic film, and leather, which vary in thickness, hardness, and surface characteristics. If the pressure roller is not adjustable, it becomes difficult to adjust the pressure to accommodate these differences. This can lead to insufficient ink adhesion on thicker or harder materials, while excessive ink compression and penetration occur on thinner or softer materials, severely impacting print quality. Even with the same substrate, thickness tolerances exist. When the pressure roller is not adjustable, insufficient pressure on materials exceeding the standard thickness prevents ink from fully transferring to the surface, while excessive pressure on materials thinner than the standard thickness can cause ink buildup and plate wear, resulting in inconsistent ink density and affecting the overall visual effect. Therefore, a multi-layer printing cylinder device designed to improve ink adhesion uniformity is proposed to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multi-layer printing roller device to improve the uniformity of ink adhesion, aiming to improve the problems of existing technology that cannot adapt to different materials, have uneven ink adhesion, and have unstable printing quality.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-layer printing roller device for improving ink adhesion uniformity includes a base plate, a fixed plate fixedly connected to the top of the base plate, a hydraulic cylinder fixedly connected inside the fixed plate, a sealing box fixedly connected to the drive end of the hydraulic cylinder, a motor fixedly connected inside the sealing box, a limit wheel fixedly connected to the drive end of the motor, a belt sleeved on the outside of the limit wheel, a second limit wheel rotatably connected to the inner wall of the sealing box, a connecting rod fixedly connected inside the second limit wheel, a pressure roller fixedly connected to the outside of the connecting rod, a limit plate slidably connected to the outside of the sealing box, and a moving component for left and right movement fixedly connected to the top of the base plate.
[0008] As a further description of the above technical solution:
[0009] The moving component includes two support plates, the bottom ends of which are fixedly connected to the top of a base plate. A square box is located on the adjacent side of the two support plates. A second motor is fixedly connected inside the square box, and a connecting plate is fixedly connected to the drive end of the second motor. A first fixing rod is fixedly connected to the distal side of the connecting rod. A second connecting rod is rotatably connected to the outer side of the first connecting rod. Slider blocks are fixedly connected to both sides of the second connecting rod. The second fixing rod is fixedly connected inside each of the two sliders. Two limiting rods are fixedly connected to the left and right sides of the inside of the square box. A doctor blade and the two support plates are slidably connected inside the square box.
[0010] As a further description of the above technical solution:
[0011] The top of the sealing box is slidably connected to the outside of the support plate, and the outer wall of the connecting rod is rotatably connected to the inside of the sealing box.
[0012] As a further description of the above technical solution:
[0013] The outer side of the connecting rod one is rotatably connected to the inside of the support plate, and the inside of the belt is sleeved on the outer wall of the limiting wheel two;
[0014] As a further description of the above technical solution:
[0015] The left and right ends of the pressure roller are rotatably connected to the adjacent sides of the two support plates, and the bottom end of the hydraulic cylinder is fixedly connected to the top of the base plate.
[0016] As a further description of the above technical solution:
[0017] The bottom end of the second connecting rod is slidably connected to the inside of the square box, and the bottom ends of the two sliders are fixedly connected to the top of the doctor blade.
[0018] As a further description of the above technical solution:
[0019] The two sliders are slidably connected inside the square box, and the left and right sides of the two sliders are slidably connected inside the limiting rod;
[0020] As a further description of the above technical solution:
[0021] The bottom end of the limiting plate is fixedly connected to the outside of the support plate, and the bottom end of the second fixing rod is fixedly connected to the inside of the doctor blade.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the pressure roller can be moved up and down by the hydraulic cylinder to achieve an adjustable effect. Appropriate pressure adjustment helps the ink to be evenly distributed on the printing cylinder and accurately transferred to the substrate. This makes the color of the printed matter more uniform and consistent, avoiding the phenomenon of uneven ink depth. Whether it is large-area color block printing or gradient color transition, it can present a natural and smooth effect, improving the visual quality of the printed matter. The adjustable pressure roller can flexibly adjust the pressure according to the wear of the printing plate and different printing tasks, avoiding excessive wear of the printing plate due to excessive pressure, or insufficient ink transfer due to insufficient pressure, which requires frequent cleaning and replacement. This can significantly extend the service life of the printing plate and reduce printing costs.
[0024] 2. In this invention, the movement of the doctor blade is achieved by the rotation of the motor. During processing and assembly, there may be some surface unevenness or roundness error. Even a small error can lead to uneven ink distribution on the roller surface. The left and right movement of the doctor blade can scrape the ink layer at different positions, effectively compensating for the roller error and ensuring that a uniform ink layer thickness is obtained on the entire circumference of the roller, thereby improving the consistency of printing quality. During the printing process, the distribution of ink on the roller may change due to various factors, such as the ink supply speed, the rotation speed of the roller, and the adsorption of ink by the printing material. The left and right movement of the doctor blade can dynamically adjust the scraping position according to the real-time changes in ink distribution, so that the ink is always evenly distributed on the roller surface, avoiding situations where there is too much or too little ink in some areas. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a multi-layer printing roller device for improving ink adhesion uniformity proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the support plate of a multi-layer printing roller device for improving ink adhesion uniformity proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the sealed box of a multi-layer printing roller device for improving ink adhesion uniformity proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the square box structure of a multi-layer printing roller device for improving ink adhesion uniformity proposed in this utility model.
[0029] Legend:
[0030] 1. Base plate; 2. Fixing plate; 3. Hydraulic cylinder; 4. Sealing box; 5. Motor 1; 6. Limiting wheel 1; 7. Belt; 8. Limiting wheel 2; 9. Connecting rod 1; 10. Pressure roller; 11. Support plate; 12. Square box; 13. Motor 2; 14. Connecting plate; 15. Fixing rod 1; 16. Connecting rod 2; 17. Slider; 18. Fixing rod 2; 19. Limiting rod; 20. Doctor blade; 21. Anilox roller; 22. Limiting plate. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a multi-layer printing roller device for improving ink adhesion uniformity, including a base plate 1, which provides a foundation for the installation of other components. A fixing plate 2 is fixedly connected to the top of the base plate 1, providing installation space for the fixing plate 2 to make subsequent components more stable. A hydraulic cylinder 3 is fixedly connected inside the fixing plate 2, which improves the stability of the hydraulic cylinder 3 and ensures that the hydraulic cylinder 3 will not shake or shift during operation. A sealing box 4 is fixedly connected to the drive end of the hydraulic cylinder 3, which drives the sealing box 4 to move up and down through the operation of the hydraulic cylinder 3. A motor 5 is fixedly connected inside the sealing box 4, which is the drive source. The sealing box 4 provides a stable output environment for it. A limit wheel 6 is fixedly connected to the drive end of the motor 5, which drives the limit wheel 6 to rotate when the motor 5 starts, providing it with power.
[0033] A belt 7 is fitted around the outside of the first limiting wheel 6. When the first limiting wheel 6 rotates, it drives the belt 7 to operate and carry the subsequent components. The inner wall of the sealing box 4 is rotatably connected to the second limiting wheel 8, which provides stability for the second limiting wheel 8. A connecting rod 9 is fixedly connected inside the second limiting wheel 8. When the second limiting wheel 8 rotates, it drives the connecting rod 9 to rotate. A pressure roller 10 is fixedly connected to the outside of the connecting rod 9. The connecting rod 9 drives the pressure roller 10 to rotate through the output of the second limiting wheel 8. A limiting plate 22 is slidably connected to the outside of the sealing box 4, which provides stability for the sealing box 4 and prevents it from shaking when moving. A moving component for left and right movement is fixedly connected to the top of the base plate 1. The position of the device can be flexibly adjusted according to the printing needs, making the printing more accurate and efficient.
[0034] Reference Figures 1 to 3The moving component includes two support plates 11, which provide installation space for subsequent components. The bottom ends of the two support plates 11 are fixedly connected to the top of the base plate 1, which provides stability for the support plates 11. A square box 12 is located on the adjacent side of the two support plates 11, which provides stability for the square box 12 and prevents shaking and displacement. A second motor 13 is fixedly connected inside the square box 12. The second motor 13 is the drive source that drives the subsequent components to rotate. A connecting plate 14 is fixedly connected to the drive end of the second motor 13, which transmits power to the second motor 13.
[0035] A fixing rod 15 is fixedly connected to the opposite side of the connecting plate 14. When the connecting plate 14 rotates, it drives the fixing rod 15 to rotate and drive the subsequent components. A connecting rod 26 is rotatably connected to the outside of the fixing rod 15. The fixing rod 15 drives the connecting rod 26 to operate. Slider 17 is fixedly connected to both sides of the connecting rod 26. A fixing rod 28 is fixedly connected inside the two sliders 17. The slider 17 is affected by the swing of the connecting rod 26 and performs linear reciprocating motion under the restriction and guidance of the limiting rods 19 fixed on both sides inside the square box 12. Two limiting rods 19 are fixedly connected to both sides inside the square box 12. A doctor blade 20 is slidably connected inside the square box 12. When the slider 17 moves, it drives the doctor blade 20 to move. An anilox roller 21 is rotatably connected to the adjacent side of the two support plates 11. During the left and right sliding process, the doctor blade 20 scrapes off the excess ink on the surface of the rotating anilox roller 21.
[0036] Reference Figures 2 to 4 The top of the sealing box 4 is slidably connected to the outside of the support plate 11. Under the operation of the hydraulic cylinder 3, the sealing box 4 moves up and down on the outside of the support plate 11. The outer wall of the connecting rod 9 is rotatably connected to the inside of the sealing box 4. When the connecting rod 9 rotates, the sealing box 4 provides stability and will not shake or shift. The outer side of the connecting rod 9 is rotatably connected to the inside of the support plate 11. When the hydraulic cylinder 3 moves up and down, the connecting rod 9 can move up and down through the sliding groove opened inside the support plate 11. The inside of the belt 7 is sleeved on the outer wall of the limiting wheel 8. The belt 7 drives the limiting wheel 8 to rotate under the transmission of the limiting wheel 6.
[0037] The left and right ends of the pressure roller 10 are rotatably connected to the adjacent side of the two support plates 11. The support plates 11 provide stability when the pressure roller 10 rotates, so that the pressure roller 10 will not shake. The bottom end of the hydraulic cylinder 3 is fixedly connected to the top end of the base plate 1. The base plate 1 provides stability for the hydraulic cylinder 3, so that it will not move when it outputs. The bottom end of the connecting rod 16 is slidably connected to the inside of the square box 12. The connecting rod 16 can slide smoothly inside the square box 12 through the drive of the fixed rod 15. The bottom ends of the two sliders 17 are fixedly connected to the top end of the doctor blade 20. When the sliders 17 move left and right, they drive the doctor blade 20 to move synchronously.
[0038] The bottom ends of the two sliders 17 are slidably connected to the inside of the square box 12, which provides stability for the sliders 17. The left and right sides of the two sliders 17 are slidably connected to the inside of the two limiting rods 19, which prevent the sliders 17 from moving or falling off during movement. The bottom end of the limiting plate 22 is fixedly connected to the outside of the support plate 11, which provides stability for the limiting plate 22. The bottom end of the second fixing rod 18 is fixedly connected to the inside of the doctor blade 20. When the sliders 17 slide, they drive the second fixing rod 18 inside to move, making the doctor blade 20 fixed by the second fixing rod 18 more stable when moving left and right.
[0039] Working principle: When the device is started, the hydraulic cylinder 3 inside the fixed plate 2 at the top of the base plate 1 starts to work. Its drive end pushes the sealing box 4 to adjust its vertical position, thereby adapting to printing materials with different height requirements and adjusting the height of the pressure roller 10. At the same time, the motor 5 inside the sealing box 4 runs. The drive end of the motor 5 drives the limit wheel 6 to rotate. The belt 7 sleeved inside the limit wheel 6 moves accordingly. Due to the interaction between the belt 7 and the limit wheel 8, the limit wheel 8 is driven to rotate. The connecting rod 9 connected to the limit wheel 8 also rotates together, ultimately causing the pressure roller 10 connected to the outside of the connecting rod 9 to start rotating. The limit plate 22 provides stability when the sealing box 4 moves, preventing the sealing box 4 from shaking during movement, realizing the pressure operation on the printing material. Pressure is applied to the printing material at different positions to ensure that the printing material is evenly pressurized. Alternatively, the position of the pressure roller 10 can be flexibly adjusted according to the special requirements of the printing pattern and process to meet diverse printing needs.
[0040] Motor 2 13 is located inside the square box 12. The connecting plate 14 connected to its drive end drives the fixed rod 15 to rotate when motor 2 13 is running. The rotation of fixed rod 15 causes the connecting rod 2 16 connected to its outer side to move accordingly. The two sliders 17 connected to connecting rod 2 16 can only slide in a specific direction under the restriction of the limiting rod 19. Fixed rod 2 18 is fixed inside slider 17. When connecting rod 2 16 moves, the doctor blade 20 connected to it slides left and right inside the square box 12. At the same time, the two support plates 11 support and enable the anilox roller 21 to rotate. During the left and right movement of the doctor blade 20, it can effectively scrape off excess ink from the surface of the anilox roller 21, ensuring that the amount of ink on the surface of the anilox roller 21 is uniform. Moreover, by moving left and right, it can deal with the ink distribution at different positions on the surface of the anilox roller 21, making the scraping effect more uniform. This lays the foundation for the accurate and uniform transfer of ink in the subsequent printing process and ensures the printing quality.
[0041] 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 multi-layer printing roller device for improving ink adhesion uniformity, comprising a base plate (1), characterized in that: A fixing plate (2) is fixedly connected to the top of the base plate (1). A hydraulic cylinder (3) is fixedly connected inside the fixing plate (2). A sealing box (4) is fixedly connected to the drive end of the hydraulic cylinder (3). A motor (5) is fixedly connected inside the sealing box (4). A limiting wheel (6) is fixedly connected to the drive end of the motor (5). A belt (7) is sleeved on the outside of the limiting wheel (6). A limiting wheel (8) is rotatably connected to the inner wall of the sealing box (4). A connecting rod (9) is fixedly connected inside the limiting wheel (8). A pressure roller (10) is fixedly connected to the outside of the connecting rod (9). A limiting plate (22) is slidably connected to the outside of the sealing box (4). A moving component for left and right movement is fixedly connected to the top of the base plate (1).
2. The multi-layer printing roller device for improving ink adhesion uniformity according to claim 1, characterized in that: The moving component includes two support plates (11), the bottom ends of which are fixedly connected to the top of the base plate (1). A square box (12) is located on the adjacent side of the two support plates (11). A motor (13) is fixedly connected inside the square box (12). A connecting plate (14) is fixedly connected to the drive end of the motor (13). A fixing rod (15) is fixedly connected to the distant side of the connecting plate (14). A connecting rod (16) is rotatably connected to the outer side of the fixing rod (15). Slider (17) is fixedly connected to both sides of the connecting rod (16). A fixing rod (18) is fixedly connected inside the two sliders (17). Two limiting rods (19) are fixedly connected to both sides of the inside of the square box (12). A doctor blade (20) is slidably connected inside the square box (12). An anilox roller (21) is rotatably connected to the adjacent side of the two support plates (11).
3. The multi-layer printing roller device for improving ink adhesion uniformity according to claim 1, characterized in that: The inner side of the belt (7) is fitted onto the outer wall of the limiting wheel (8), and the outer wall of the connecting rod (9) is rotatably connected to the inside of the sealing box (4).
4. The multi-layer printing roller device for improving ink adhesion uniformity according to claim 2, characterized in that: The top of the sealing box (4) is slidably connected to the outside of the support plate (11), and the left and right ends of the pressure roller (10) are rotatably connected to the adjacent sides of the two support plates (11).
5. The multi-layer printing roller device for improving ink adhesion uniformity according to claim 2, characterized in that; The outer side of the connecting rod (9) is rotatably connected to the inside of the support plate (11), and the bottom end of the hydraulic cylinder (3) is fixedly connected to the top end of the base plate (1).
6. The multi-layer printing roller device for improving ink adhesion uniformity according to claim 2, characterized in that: The bottom end of the second connecting rod (16) is slidably connected to the inside of the square box (12), and the bottom ends of the two sliders (17) are fixedly connected to the top of the doctor blade (20).
7. The multi-layer printing roller device for improving ink adhesion uniformity according to claim 2, characterized in that: The two sliders (17) are slidably connected inside the square box (12), and the left and right sides of the two sliders (17) are slidably connected inside the two limiting rods (19).
8. The multi-layer printing roller device for improving ink adhesion uniformity according to claim 2, characterized in that: The bottom end of the limiting plate (22) is fixedly connected to the outside of the support plate (11), and the bottom end of the fixing rod (18) is fixedly connected to the inside of the doctor blade (20).