Gravure color display instrument for simulating printing
By designing a cleaning component on the gravure color analyzer, the ink is cleaned by using the rotation of the gravure cylinder to drive the cotton roller. This solves the problem of external tools affecting equipment use and achieves a self-cleaning effect for the gravure cylinder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-31
AI Technical Summary
Existing gravure color developing equipment requires external tools to clean the gravure cylinder when changing ink colors, which affects the equipment's performance.
A gravure color analyzer for simulated printing was designed, equipped with a cleaning component including a U-shaped support bar and a cotton roller. The cotton roller is driven by the rotation of the gravure cylinder to clean the ink synchronously, and the ink is scraped off by a scraper to achieve self-cleaning.
This technology enables centralized cleaning of ink from gravure printing cylinders, improving equipment efficiency and cleaning effectiveness.
Smart Images

Figure CN224060689U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of colorimeter technology, specifically a gravure colorimeter for simulating printing. Background Technology
[0002] A gravure color analyzer is a precision instrument specifically designed to simulate gravure printing processes, performing color development and matching of inks, and conducting small-scale tests on printing effects. Through a specific mechanical structure and working principle, it utilizes the cooperation of a gravure cylinder with cells and a doctor blade system to transfer ink onto the substrate. This allows the analyzer to visualize the ink's color, gloss, hiding power, adhesion, and other characteristics under different conditions. This helps ink manufacturers, printing companies, and other related industry personnel to intuitively observe and evaluate ink performance and printing effects, enabling them to adjust ink formulations, optimize printing processes, and control quality, ensuring that the final printed products meet the expected color and quality standards.
[0003] The gravure color developer we currently use has a gravure cylinder on which ink drips. It also has a doctor blade system. The doctor blade system works in conjunction with the gravure cylinder to print on the substrate. However, after use, the gravure cylinder may need to have its ink color changed. This usually requires external tools to continuously wipe the gravure cylinder to clean the ink, which can affect the equipment's performance.
[0004] Therefore, it is necessary to provide a gravure color analyzer for simulating printing to solve the above problems. Utility Model Content
[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a gravure color spreader for simulated printing, which achieves the effect of centralized cleaning of ink on the roller.
[0006] The technical solution adopted by this application to solve its technical problem is: a gravure color expander for simulated printing, including a color expander assembly, a cleaning assembly fixedly installed on the color expander assembly, the color expander assembly including a main body, a material cylinder fixedly installed on the main body, a gravure cylinder, an impression roller and a doctor blade rotatably connected to the main body, the doctor blade being located between the gravure cylinder and the impression roller, the cleaning assembly including a U-shaped support bar disposed inside the main body and movable up and down, both ends of the U-shaped support bar extending out of the main body, and one end being connected to a cotton roller that can contact the surface of the gravure cylinder via a connecting rod.
[0007] Furthermore, a connecting plate is installed at the other end of the U-shaped support bar. A groove is provided on the connecting plate, and a scraper is installed in the groove. The scraper can adjust its position as the U-shaped support bar moves, so that the scraper can approach the gravure cylinder together with the cotton roller.
[0008] Furthermore, the main body has an internal cavity, the U-shaped support bar is located in the cavity, the U-shaped support bar is fixedly connected to a fixing plate, the fixing plate is threadedly connected to a threaded rod, the threaded rod is rotatably connected at the bottom of the main body, and the U-shaped support bar can move up and down as the fixing plate moves.
[0009] Furthermore, the end of the connecting rod away from the U-shaped support bar is milled with an external thread, and a nut is installed at the external thread. The cotton roller is mounted on the connecting rod by means of the nut for limiting its position.
[0010] Furthermore, the connecting rod is connected to the U-shaped support bar via a rotating shaft, and the connecting rod can rotate via the rotating shaft.
[0011] Furthermore, a pin is inserted into the connecting rod, which can pass through the connecting rod and connect to the main body, thereby limiting the position of the connecting rod when it does not need to rotate.
[0012] Furthermore, both sides of the top of the main body are fixedly installed with mutually aligned slide rails, and rollers are rolled inside the slide rails. A cutter is hinged between the rollers, and a handle is fixedly installed on the cutter. One side of the cutter is in an inclined state, and the cutter can move along the slide rail by means of the rollers.
[0013] The beneficial effects of this application are:
[0014] This application provides a gravure color spreader for simulated printing. Utilizing the rotational characteristic of the gravure cylinder, the U-shaped support bar is continuously raised, allowing the cotton roller to contact the surface of the gravure cylinder. As the gravure cylinder rotates, the cotton roller moves synchronously, enabling the cotton roller to absorb and clean the ink on the gravure cylinder. Furthermore, the scraper also contacts the gravure cylinder, scraping off and concentrating the ink, thus greatly improving the cleaning effect of the cotton roller. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is an overall schematic diagram of a gravure colorimeter for simulating printing according to this application;
[0017] Figure 2 for Figure 1 A schematic diagram of the cutter in the colorimeter component;
[0018] Figure 3 for Figure 1 One of the structural diagrams of the cleaning component;
[0019] Figure 4 for Figure 1 The second structural diagram of the cleaning component;
[0020] The following are the labeling elements in the figure:
[0021] 10. Colorimeter assembly; 11. Main body; 12. Material cylinder; 13. Gravure cylinder; 14. Impression roller; 15. Squeegee; 16. Slide rail; 17. Roller; 18. Cutter; 19. Handle;
[0022] 20. Cleaning component; 21. U-shaped support bar; 22. Cotton roller; 23. Nut; 24. Slide groove; 25. Scraper; 26. Shaft; 27. Pin; 28. Receiving cavity; 29. Threaded rod; 210. Fixing plate. Detailed Implementation
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0025] like Figures 1-4 As shown, this application provides a gravure color explorer for simulated printing, including a color explorer assembly 10 and a cleaning assembly 20 fixedly installed on the color explorer assembly 10. The color explorer assembly 10 is used for color exploration and color matching of inks and for small-scale testing of printing effects, while the cleaning assembly 20 is used for cleaning the components on the color explorer assembly 10.
[0026] The colorimeter assembly 10 includes a main body 11 on which a material cylinder 12 is fixedly mounted. The material cylinder 12 can be used to centrally mount a printing substrate, which can be a material such as paper, plastic film, or metal foil. By mounting the printing substrate on the material cylinder 12 and allowing the material cylinder 12 to roll on the main body 11, the printing substrate on the material cylinder 12 can be rolled up and removed as the material cylinder 12 rolls.
[0027] The main body 11 is rotatably connected to a gravure cylinder 13, which can be made of metal, such as copper or steel. Ink can drip onto the gravure cylinder 13, and the gravure cylinder 13 has meshes of different depths and widths for storing ink. The meshes can be round, square, diamond, or other shapes.
[0028] The main body 11 is rotatably connected to an impression roller 14 on the side near the gravure cylinder 13. The substrate can be placed on the impression roller 14, which can be rotated by a drive module inside the main body 11. The substrate can contact and move with the gravure cylinder 13. At the same time, the impression roller 14 is used to provide appropriate pressure to ensure that the ink on the gravure cylinder 13 can be well transferred to the substrate.
[0029] A doctor blade 15 is rotatably connected to the main body 11. The doctor blade 15 is located between the gravure cylinder 13 and the printing roller 14. The doctor blade 15 is used to control the amount of ink on the surface of the gravure cylinder 13. The doctor blade 15 is usually made of metal material, so the doctor blade 15 has good wear resistance and elasticity.
[0030] Both ends of the main body 11 are fixedly mounted with mutually aligned slide rails 16. Rollers 17 are rolled on the slide rails 16, and the rollers 17 can be limited inside the slide rails 16. Cutters 18 are fixedly mounted on the two sets of rollers 17, and handles 19 are fixedly mounted on the cutters 18. One side of the cutter 18 is inclined, and the cutter 18 can be moved by the rolling of the rollers 17 on the slide rails 16. After the substrate on the material cylinder 12 is installed, the substrate needs to be cut. The cutter 18 can move so that the substrate can be cut by the cutter 18. The cutter 18 is inclined, so that when the inclined cutter 18 contacts the substrate, the blade gradually cuts into the substrate, so that the resistance during cutting is smaller and the cutting process is smoother.
[0031] The cleaning assembly 20 includes a U-shaped support strip 21 disposed within the cavity 28 of the main body 11. The end of the U-shaped support strip 21 extends out of the main body 11, and a cotton roller 22 is rotatably mounted on one end via a connecting rod. The cotton roller 22 can move up and down together with the U-shaped support strip, thereby allowing the cotton roller 22 to contact the surface of the gravure cylinder 13. When the gravure cylinder 13 needs to be cleaned of ink, the cotton roller 22 moves and contacts the gravure cylinder 13. As the gravure cylinder 13 rotates, it drives the cotton roller 22 to rotate synchronously, so that the ink on the gravure cylinder 13 is absorbed and cleaned by the cotton roller 22.
[0032] The other end of the U-shaped support bar 21 is equipped with a connecting plate. The connecting plate has a groove 24, and a scraper 25 is installed in the groove 24. The scraper 25 can also move with the movement of the U-shaped support bar 21, so that the scraper 25 can approach the gravure cylinder 13 together with the cotton roller 22. When the scraper 25 contacts the gravure cylinder 13, the ink on the gravure cylinder 13 can be concentrated, thereby greatly improving the cleaning effect of the cotton roller 22.
[0033] The end of the connecting rod away from the U-shaped support bar 21 is milled with an external thread, and a nut 23 is threadedly installed at the external thread, so that the cotton roller 22 can be limited and installed on the connecting rod by the nut 23, and the cotton roller 22 can be disassembled and replaced by removing the nut.
[0034] The connecting rod is connected to the U-shaped support bar 21 via the rotating shaft 26, so that the connecting rod can rotate via the rotating shaft 26. When the cotton roller 22 needs to be replaced, the position of the connecting rod changes, and the cotton roller 22 can face the outside of the main body 11, making it easy to quickly remove the cotton roller 22.
[0035] A pin 27 is also inserted into the connecting rod. The pin 27 can pass through the connecting rod and connect to the main body 11. When the connecting rod does not need to be rotated, the pin 27 is inserted into the connecting rod to limit the connection rod. Similarly, when the connecting rod needs to be rotated and adjusted, the pin 27 is removed so that the connecting rod can be rotated and adjusted.
[0036] The main body 11 has an internal cavity 28, and the U-shaped support bar 21 is located inside the cavity 28, so that the U-shaped support bar 21 can move up and down within the cavity 28. A fixing plate 210 is fixedly installed on the U-shaped support bar 21, and the fixing plate 210 is threadedly connected to the threaded rod 29. The threaded rod 29 is rotatably connected at the bottom of the main body 11, so that by rotating the threaded rod 29, the U-shaped support bar 21 can be adjusted up and down within the cavity 28, thereby adjusting the up and down positions of the cotton roller 22 and the scraper 25 so that they can contact the surface of the gravure roller 13.
[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A gravure proofer for simulating printing, comprising a proofer assembly (10), characterised in that: The cleaning assembly (20) is fixedly installed on the color spreader assembly (10), the color spreader assembly (10) comprises a main body (11), the main body (11) is fixedly installed with a barrel (12), the main body (11) is also rotatably connected with a gravure roller (13), a printing roller (14) and a scraper (15), the scraper (15) is located between the gravure roller (13) and the printing roller (14); the cleaning assembly (20) comprises a U-shaped support strip (21) movably arranged in the main body (11), both ends of the U-shaped support strip (21) extend out of the main body (11), and one end is provided with a cotton roller (22) capable of contacting the surface of the gravure roller (13) through a connecting rod.
2. A mezzotint development instrument for analog printing according to claim 1, characterized in that: The other end of the U-shaped support strip (21) is provided with a connecting plate, a sliding groove (24) is formed in the connecting plate, a scraper (25) is installed in the sliding groove (24), and the scraper (25) can contact the gravure roller (13) by moving the U-shaped support strip (21).
3. A mezzotint development instrument for analog printing according to claim 2, characterized in that: The main body (11) is internally provided with a receiving cavity (28), the U-shaped support strip (21) is located in the receiving cavity (28), the U-shaped support strip (21) is fixedly connected with a fixing piece (210), the fixing piece (210) is threadedly connected with a threaded rod (29), the threaded rod (29) is rotatably connected at the bottom of the main body (11), and the U-shaped support strip (21) can move up and down by moving the fixing piece (210).
4. The color spreader for analog printing according to claim 1, characterized in that: The end of the connecting rod away from the U-shaped support strip (21) is milled with external threads, a nut (23) is installed at the external threads, and the cotton roller (22) is limitingly installed on the connecting rod through the nut (23).
5. A mezzotint development instrument for analog printing according to claim 4, characterized in that: The connecting rod is connected with the U-shaped support strip (21) through a rotating shaft (26), and the connecting rod can rotate through the rotating shaft (26).
6. A color spreader for analog printing according to claim 1, characterized in that: Both sides of the top of the main body (11) are fixedly provided with mutually aligned sliding rails (16), the sliding rails (16) are rollingly provided with rollers (17), and two groups of rollers (17) are hingedly provided with a cutter (18), the cutter (18) is fixedly provided with a handle (19), and one side of the cutter (18) is in an inclined state; the cutter (18) can move along the sliding rails (16) through the rollers (17).