Automatic cleaning four-color printing machine roller structure

By using a frame structure and a motor-driven cleaning device, the problem of incomplete cylinder cleaning in traditional four-color printing machines has been solved, achieving comprehensive cleaning and disinfection of the cylinders, thus improving printing quality and equipment lifespan.

CN224159081UActive Publication Date: 2026-04-24YANGZHONG POST PRINTING FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHONG POST PRINTING FACTORY
Filing Date
2025-05-06
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The traditional four-color printing press cylinder structure makes it difficult to effectively clean complex areas such as the ends of the cylinder, gear meshing, gaps, and grooves. Stubborn ink stains and paper fibers are also difficult to completely remove, affecting printing quality and equipment lifespan.

Method used

The machine uses a frame structure combined with a motor, gears, rack and pinion and moving blocks to drive the roller movement. It sprays cleaning agent through solution nozzles, and performs deep cleaning with roller brushes and wiping cylinders. It is then dried and disinfected by a disinfection and drying mechanism.

Benefits of technology

It achieves comprehensive and uniform cleaning of the rollers, improves printing results, reduces equipment damage, and increases production efficiency and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of efficient cleaning of printing machine cylinders, and discloses an automatic cleaning four-color printing machine cylinder structure which comprises a first rack, the bottom of the first rack is fixedly connected with a supporting table, the inner wall of the rear side of the supporting table is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a gear. A rack is connected to the upper side of the gear in a meshed mode, a movable concave block is fixedly connected to the upper side of the outer wall of the rack, a first fixing column is fixedly connected to the middle of the front side of the movable concave block, a wiping cylinder is fixedly connected to the rear side of the inner wall of the first rack, and a solution spray head communicates with the front side of the inner wall of the first rack. According to the roller cleaning device, the roller is driven to move through movement of the movable concave block, cleaning agents are evenly sprayed to the surface of the roller through the solution tank, then the transmission rod is driven to rotate through the motor, and therefore the roller brush is driven to deeply clean the surface of the roller, and then the roller is cleaned through the cleaning spray head.
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Description

Technical Field

[0001] This utility model relates to the field of efficient cleaning technology for printing press cylinders, and in particular to an automatic cleaning structure for four-color printing press cylinders. Background Technology

[0002] Four-color printing presses occupy a crucial position in the modern printing industry, accurately reproducing various complex colors and images to meet the diverse and high-quality printing needs of different users. With the continuous development of the printing industry, higher demands are being placed on the automation level and production efficiency of four-color printing presses. To address the problems inherent in the cylinder structure of traditional four-color printing presses, automatic cleaning technology has emerged. Furthermore, automatic cleaning technology can reduce errors and risks associated with manual operation. Manual cleaning requires machine downtime, which interrupts the printing production process and reduces efficiency. For large-scale, high-efficiency printing production enterprises, the time and economic losses from downtime cleaning are significant. Moreover, frequent downtime cleaning can also impact the lifespan of the equipment. This necessitates a device capable of deep cleaning the cylinder structure of four-color printing presses.

[0003] Traditional four-color printer cylinders have some complex structural parts, such as the ends of the cylinder, the gear meshing points, and some gaps and grooves. Traditional automatic cleaning devices may not be able to effectively reach these parts for cleaning due to structural design limitations. At the same time, traditional automatic cleaning structures may not be able to completely remove stubborn ink stains and dried paper fibers that have accumulated on the cylinder surface over a long period of time. These stubborn stains will affect the cylinder's ink transfer and adsorption performance. Although the automatic cleaning cylinder structures of four-color printers on the market can clean stubborn ink stains and dried paper fibers that have accumulated on the cylinder surface over a long period of time by adding strong cleaning agents, there are still cases where the cleaning of some areas of the cylinder is not sufficient and cleaning agent residue remains. This will affect the printing effect of the four-color printer and damage the four-color printer cylinder. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic cleaning structure for the rollers of a four-color printer, which aims to improve the problem of poor cleaning effect caused by uneven spraying of solution on the roller surface in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an automatic cleaning four-color printing machine roller structure, including a frame one, a support platform fixedly connected to the bottom of the frame one, a motor two fixedly connected to the rear inner wall of the support platform, a gear fixedly connected to the output end of the motor two, a rack meshing with the upper side of the gear, a movable recess fixedly connected to the upper side of the outer wall of the rack, a fixing column one fixedly connected to the front center of the movable recess, a wiping cylinder fixedly connected to the rear side of the inner wall of the frame one, and a solution nozzle communicating with the front side of the inner wall of the frame one. Both solution nozzles have solution tanks connected to their bottom ends. A cleaning nozzle is connected to the middle of the inner wall of the first frame. Both cleaning nozzles have water tanks connected to their bottom ends. A cleaning brush is fixedly connected to the middle of the inner side of the first frame. A support plate is fixedly connected to the upper side of the first frame. A motor is fixedly connected to the middle of the upper side of the support plate. A transmission rod is fixedly connected to the output ends of the two motors. A roller brush is fixedly connected to the lower outer wall of the transmission rod. A disinfection and drying mechanism is provided at the rear of the first frame. The disinfection and drying mechanism is used to disinfect and dry objects.

[0006] As a further description of the above technical solution:

[0007] The disinfection and drying mechanism includes a second frame, with the front sides of two second frames fixedly connected to the rear side of a first frame. A housing is slidably connected to the upper side of the second frame. A protective shell is fixedly connected to the upper inner wall of the housing. Ultraviolet lamps are fixedly connected to the upper inner walls of multiple protective shells. An electric motor is fixedly connected to the upper outer wall of the housing. Fans are fixedly connected to the output ends of two electric motors. Protective tubes are fixedly connected to both sides of the inner wall of the second frame. Tungsten wires are arranged inside the inner sides of multiple protective tubes. A base is fixedly connected to the lower side of the second frame, and a slide rail is provided in the middle of the outer wall of the base.

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

[0009] The inner wall of the support platform has a groove in the middle, and the top of each of the two water storage tanks is provided with a dust cover.

[0010] As a further description of the above technical solution:

[0011] Both solution tanks are equipped with a dust cover at the top, and a nut is fixedly connected to the upper side of the outer wall of the dust cover.

[0012] As a further description of the above technical solution:

[0013] Both nuts have a fixing plate threaded to their outer walls, and a handle is fixedly connected to the upper side of each nut.

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

[0015] A handle is fixedly connected to the upper middle part of the outer shell, and a protective shell is fixedly connected to the upper front part of both outer shells.

[0016] As a further description of the above technical solution:

[0017] Both of the two frames have a groove on the upper side of their outer walls, and a fan cover is provided on the lower side of the fan.

[0018] As a further description of the above technical solution:

[0019] A fixing column 2 is fixedly connected to the upper side of the wind hood, and valves are connected to the front side of the outer walls of the two water storage tanks.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the movement of the movable concave block drives the roller to move, the cleaning agent is evenly sprayed onto the surface of the roller through the solution tank, and then the transmission rod is rotated by the motor, thereby driving the roller brush to deeply clean the surface of the roller. After that, the roller is cleaned by the cleaning nozzle, and finally the roller is wiped by the wiping cylinder. This achieves the cleaning of the roller.

[0022] 2. In this utility model, after the roller is cleaned, it is dried by heating with tungsten wire. At the same time, a fan is fixedly connected to the output end of the motor, and the fan blows air to dry the roller. Finally, an ultraviolet lamp fixed to the upper side of the inner wall of the protective shell disinfects the roller, thus achieving the drying and sterilization treatment of the roller. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the automatic cleaning four-color printing machine cylinder structure proposed in this utility model.

[0024] Figure 2 This is a three-dimensional top view of the automatic cleaning four-color printing machine cylinder structure proposed in this utility model.

[0025] Figure 3 This is a three-dimensional side view of the automatic cleaning four-color printing machine cylinder structure proposed in this utility model;

[0026] Figure 4 This is a partial top view of the automatic cleaning four-color printing machine cylinder structure proposed in this utility model.

[0027] Figure 5 This is a partial structural diagram of the automatic cleaning four-color printing machine drum structure proposed in this utility model.

[0028] Figure 6This is a partial structural diagram of the automatic cleaning four-color printing machine drum structure proposed in this utility model.

[0029] Figure 7 This is a partial structural diagram of the automatic cleaning four-color printing machine drum structure proposed in this utility model.

[0030] Figure 8 This is a partial structural diagram of the automatic cleaning four-color printing machine roller structure proposed in this utility model.

[0031] Legend:

[0032] 1. Frame 1; 2. Disinfection and drying mechanism; 201. Frame 2; 202. Tungsten filament; 203. Protective tube; 204. Protective shell 1; 205. Slide rail; 206. Ultraviolet lamp; 207. Motor; 208. Fan; 209. Base; 210. Outer shell; 3. Motor 1; 4. Transmission rod; 5. Solution nozzle; 6. Roller brush; 7. Moving recess; 8. Gear; 9. Motor 2; 10. Rack; 1. Wiping cylinder; 12. Fixing post one; 13. Cleaning brush; 14. Cleaning nozzle; 15. Solution tank; 16. Water storage tank; 17. Support plate; 18. Support platform; 19. Valve; 20. Dust cover one; 21. Handle one; 22. Fixing plate; 23. Groove two; 24. Groove one; 25. Protective shell two; 26. Handle two; 27. Nut; 28. Fixing post two; 29. ​​Fan cover; 30. Dust cover two. Detailed Implementation

[0033] 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.

[0034] Please see the appendix Figure 4 - Appendix Figure 6This utility model provides an embodiment of an automatic cleaning four-color printing machine roller structure, including a frame 1. A support platform 18 is fixedly connected to the bottom of the frame 1. A motor 9 is fixedly connected to the rear inner wall of the support platform 18 for support and fixation. A gear 8 is fixedly connected to the output end of the motor 9. A rack 10 is meshed on the upper side of the gear 8. The motor 9 drives the rack 10 to move. A movable recess 7 is fixedly connected to the upper side of the outer wall of the rack 10. A fixing post 12 is fixedly connected to the middle of the front side of the movable recess 7 for moving and fixing the roller. A wiping cylinder 11 is fixedly connected to the rear side of the inner wall of the frame 1. A solution spray head 5 is connected to the front side of the inner wall of the frame 1 for spraying solution onto the roller. The bottom of each solution nozzle 5 is connected to a solution tank 15. A cleaning nozzle 14 is connected to the middle of the inner wall of the frame 1 to rinse the roller. The bottom of each of the two cleaning nozzles 14 is connected to a water storage tank 16. A cleaning brush 13 is fixedly connected to the middle of the inner side of the frame 1 to perform the initial cleaning of the roller. A support plate 17 is fixedly connected to the upper side of the frame 1. A motor 3 is fixedly connected to the middle of the upper side of the support plate 17 to fix the motor 3. A transmission rod 4 is fixedly connected to the output end of the two motors 3. A roller brush 6 is fixedly connected to the lower outer wall of the transmission rod 4 to perform deep cleaning of the roller. A disinfection and drying mechanism 2 is set at the rear of the frame 1. The disinfection and drying mechanism 2 is used to disinfect and dry the objects.

[0035] Specifically, firstly, a gear 8 is fixedly connected to the output end of motor 29, and a rack 10 is meshed with the outer wall of gear 8. Motor 29 drives rack 10 to move. A movable recess 7 is fixedly connected to the upper side of rack 10, and a fixed column 12 is fixedly connected to the middle of the outer wall of movable recess 7, thereby driving the roller to move. At this time, solution nozzle 5 sprays solution to make the roller easier to clean. Then, cleaning brush 13 performs initial cleaning of the roller, then roller brush 6 performs deep cleaning of the roller, then cleaning nozzle 14 sprays water to rinse the roller, and finally the cleaning brush 13 wipes it.

[0036] Please see the appendix Figure 6 - Appendix Figure 8The disinfection and drying mechanism 2 includes a second frame 201. The front sides of the two second frames 201 are fixedly connected to the rear side of the first frame 1. The upper side of the second frame 201 is slidably connected to the outer shell 210, which serves to fix and protect it. The upper side of the inner wall of the outer shell 210 is fixedly connected to the protective shell 204. The upper side of the inner wall of multiple protective shells 204 is fixedly connected to ultraviolet lamps 206, which serve to disinfect the drum. The upper side of the outer wall of the outer shell 210 is fixedly connected to the motor 207. The output ends of the two motors 207 are fixedly connected to fans 208, which blow air to dry the drum. The inner walls of the second frame 201 are fixedly connected to both sides of the inner wall of the second frame 201. The inner side of multiple protective tubes 203 is provided with tungsten wires 202, which heat the drum to dry it. The lower side of the second frame 201 is fixedly connected to the base 209. The middle of the outer wall of the base 209 is provided with a slide rail 205 for fixing and supporting it.

[0037] Specifically, once the roller enters the drying area, the tungsten wire 202, fixedly connected to the inner wall of the frame 201, heats up, thus drying the roller. A protective shell 204 is fixedly connected to the upper inner wall of the outer shell 210. An ultraviolet lamp 206 is fixedly connected to the upper inner wall of the protective shell 204. The protective shell 204 disinfects the roller and prevents bacterial corrosion. At the same time, the motor 207 drives the fan 208 to blow air onto the roller for drying.

[0038] Please see the appendix Figure 1 - Appendix Figure 3 The inner wall of the support platform 18 has a groove 23 in the middle. The top of each of the two water tanks 16 is equipped with a dust cover 30 for protection. The top of each of the two solution tanks 15 is equipped with a dust cover 20. The upper side of the outer wall of the dust cover 20 is fixedly connected with a nut 27 for fixing.

[0039] Specifically, groove 23 allows the movable concave block 7 to move, thereby moving the roller, and dust cover 20 prevents the solution in solution tank 15 from being contaminated.

[0040] Please see the appendix Figure 1 - Appendix Figure 3 The outer walls of both nuts 27 are threaded with fixing plates 22. The upper side of each nut 27 is fixedly connected with a handle 21, which serves as a fixing connection. The upper middle part of the outer shell 210 is fixedly connected with a handle 26. The upper front part of both outer shells 210 is fixedly connected with a protective shell 25 for protection.

[0041] Specifically, the fixing plate 22 is fixed by the nut 27, while the handle 21 is easy to grip, and the protective shell 25 protects the outer shell 210.

[0042] Please see the appendix Figure 6 - Appendix Figure 8The upper side of the outer wall of each of the two frames 201 is provided with a groove 24. The lower side of the fan 208 is provided with a fan cover 29 to prevent the fan 208 from being tangled. The upper side of the fan cover 29 is fixedly connected with a fixing column 28 for fixing. The front side of the outer wall of the two water storage tanks 16 is connected to a valve 19, which can be controlled by the valve 19.

[0043] Specifically, the fan cover 29 protects the fan 208 from foreign objects getting tangled in it, while the valve 19 controls the opening and closing of the water storage tank 16.

[0044] Working principle: When the roller needs to be cleaned, motor 29 is started. Gear 8 is fixedly connected to the output end of motor 29. Gear 8 is meshed with rack 10 on its outer wall. Motor 29 drives rack 10 to move. At the same time, a movable concave block 7 is fixedly connected to the upper side of rack 10. A wiping cylinder 11 is fixedly connected to the middle of the outer wall of movable concave block 7, which can fix the roller to move. Solution tank 15 is fixedly connected to the front of the inner wall of frame 1, which can spray solution on the roller. Then, cleaning brush 13 performs a simple cleaning of the roller. After that, transmission rod 4 is fixedly connected to the output end of motor 13. Roller brush 6 is fixedly connected to the lower side of the outer wall of transmission rod 4. Motor 13 drives roller brush 6 to further clean the roller. Then, the roller is rinsed by cleaning nozzle 14. Finally, the roller is wiped by cleaning nozzle 14, which improves the cleaning effect of the roller.

[0045] After cleaning the roller, it can then be dried and disinfected. Once the roller enters the heating and disinfection area, tungsten wires 202 are fixedly connected to the inner wall of the frame 201. The tungsten wires 202 on both sides generate heat to dry the roller. At the same time, a fan 208 is fixedly connected to the output end of the protective tube 203. The protective tube 203 drives the fan 208 to rotate and blow air to dry the roller. An ultraviolet lamp 206 is fixedly connected to the inner side of the protective shell 204. The ultraviolet lamp 206 can sterilize the roller and prevent bacteria from corroding it.

[0046] 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 structure for automatically cleaning the cylinders of a four-color printing machine, comprising a frame (1), characterized in that: A support platform (18) is fixedly connected to the bottom of the frame (1). A motor (9) is fixedly connected to the inner rear wall of the support platform (18). A gear (8) is fixedly connected to the output end of the motor (9). A rack (10) is meshed with the upper side of the gear (8). A movable recess (7) is fixedly connected to the upper outer wall of the rack (10). A fixed column (12) is fixedly connected to the middle front side of the movable recess (7). A wiping cylinder (11) is fixedly connected to the rear inner wall of the frame (1). A solution nozzle (5) is connected to the front inner wall of the frame (1). The bottom ends of both solution nozzles (5) are connected to solution tanks (15). A cleaning nozzle (14) is connected to the middle of the inner wall of the frame (1). The bottom ends of the two cleaning nozzles (14) are connected to a water tank (16). A cleaning brush (13) is fixedly connected to the middle of the inner side of the frame (1). A support plate (17) is fixedly connected to the upper side of the frame (1). A motor (3) is fixedly connected to the middle of the upper side of the support plate (17). A transmission rod (4) is fixedly connected to the output ends of the two motors (3). A roller brush (6) is fixedly connected to the lower side of the outer wall of the transmission rod (4). A disinfection and drying mechanism (2) is provided on the rear side of the frame (1). The disinfection and drying mechanism (2) is used to disinfect and dry objects.

2. The automatic cleaning four-color printer cylinder structure according to claim 1, wherein: The disinfection and drying mechanism (2) includes a second frame (201), the front sides of two second frames (201) are fixedly connected to the rear side of a first frame (1), the upper side of the second frame (201) is slidably connected to a shell (210), the upper side of the inner wall of the shell (210) is fixedly connected to a first protective shell (204), the upper side of the inner wall of multiple first protective shells (204) is fixedly connected to an ultraviolet lamp (206), the upper side of the outer wall of the shell (210) is fixedly connected to a motor (207), the output end of two motors (207) is fixedly connected to a fan (208), the inner walls of the second frame (201) are fixedly connected to both sides of the inner wall of the second frame (201), the inner side of multiple first protective shells (203) is provided with a tungsten wire (202), the lower side of the second frame (201) is fixedly connected to a base (209), and a slide rail (205) is provided in the middle of the outer wall of the base (209).

3. The automatic cleaning four-color printing machine cylinder structure according to claim 1, characterized in that: The inner wall of the support platform (18) is provided with a groove (23) and the top of the two water storage tanks (16) is provided with a dust cover (30).

4. The automatic cleaning four-color printer cylinder structure according to claim 1, wherein: Both of the solution tanks (15) are provided with a dust cover (20) at the top, and a nut (27) is fixedly connected to the upper side of the outer wall of the dust cover (20).

5. The automatic cleaning four-color printing machine cylinder structure according to claim 4, characterized in that: Both nuts (27) have a fixing plate (22) threaded to their outer walls, and a handle (21) is fixedly connected to the upper side of each nut (27).

6. The automatic cleaning four-color printing machine cylinder structure according to claim 2, characterized in that: A handle (26) is fixedly connected to the upper middle part of the outer shell (210), and a protective shell (25) is fixedly connected to the upper front part of both outer shells (210).

7. The automatic cleaning four-color printing machine cylinder structure according to claim 2, characterized in that: The upper side of the outer wall of each of the two frames (201) is provided with a groove (24), and the lower side of the fan (208) is provided with a fan cover (29).

8. The automatic cleaning four-color printing machine cylinder structure according to claim 7, characterized in that: The upper side of the wind shield (29) is fixedly connected to a second fixed column (28), and the front side of the outer wall of the two water storage tanks (16) is connected to a valve (19).