Gravure ink printing processing equipment
By adopting a hinged doctor blade design in gravure ink printing equipment, the ink naturally flows back to the ink cartridge, solving the problem of ink accumulation and realizing ink reuse and improved printing quality.
Patent Information
- Application Number
- CN202423302272.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing technologies, ink tends to accumulate in the gap between the doctor blade and the blade clamp, leading to decreased printing quality, ink overflow, and difficulty in cleaning, which increases production costs and scrap rate.
The design features a hinged doctor blade, which is angled and connected to the ink cartridge. This allows the ink to flow back into the cartridge naturally, preventing accumulation and ensuring ink reuse and printing uniformity.
It effectively prevents ink from accumulating in the gaps of the doctor blade, reduces ink consumption costs, improves the consistency and uniformity of printed colors, and enhances print quality.
Smart Images
Figure CN223533173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ink printing technology, specifically to a gravure ink printing processing equipment. Background Technology
[0002] As is well known, water-based gravure inks are suitable for gravure printing on various types of paper, aluminum foil, and film. They have good printability, are environmentally friendly and meet food hygiene requirements, and are water-resistant, oil-resistant, abrasion-resistant, have good adhesion, and low odor.
[0003] In the prior art, as follows Figure 1 and Figure 2 As shown, the doctor blade is mounted via a blade holder. However, during the printing process, ink can easily seep into the gaps between the blade holder and the doctor blade. As printing continues, ink accumulates in these gaps, which not only affects the doctor blade's ability to evenly distribute the ink, preventing it from precisely and evenly applying the ink to the printing roller, but also reduces print quality.
[0004] When too much ink accumulates inside the cutter clamp, it overflows due to gaps between the clamp and the bolt, causing ink spillage. This spillage can stain printed materials, resulting in ink defects that significantly affect the quality of the finished product, increase scrap rates and production costs, and also complicate subsequent cleaning work, increasing the difficulty and cost of equipment maintenance. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a gravure ink printing processing equipment that eliminates the problem of ink residue accumulation in the gaps between the printing cutters, reduces ink consumption costs during the printing process, ensures the consistency and uniformity of printed colors, and improves printing quality.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a gravure ink printing processing equipment, including an ink cartridge and a printing roller installed inside the ink cartridge. A doctor blade is hinged to the ink cartridge via a first connecting shaft. A second connecting shaft is rotatably connected to the doctor blade. A third connecting shaft is rotatably connected to the ink cartridge. A lead screw is rotatably connected to the third connecting shaft. The lead screw and the second connecting shaft are connected by the lead screw.
[0009] Furthermore, the ink cartridge has a through groove on its wall for the second connecting shaft to pass through.
[0010] Furthermore, a scale is provided near the through groove for the displacement reference of the second connecting shaft.
[0011] Furthermore, the doctor blade is inclined, and the side of the doctor blade closer to the printing roller is higher than the side of the doctor blade farther from the printing roller.
[0012] Furthermore, the second connecting shaft and the scraper are detachably connected.
[0013] Furthermore, the lead screw is provided with a turning block for rotating the lead screw.
[0014] Furthermore, the end of the lead screw is provided with a limiting block to prevent the lead screw and the second connecting shaft from falling off.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a gravure ink printing processing equipment, which has the following beneficial effects:
[0017] This gravure ink printing equipment eliminates the problem of ink residue buildup in the gaps between the ink cartridges by using a hinged doctor blade that is hinged to the ink cartridge, thus abandoning the traditional blade clamp.
[0018] By tilting the doctor blade, the scraped ink flows naturally back into the ink cartridge, effectively preventing ink buildup around the blade. The reflux design ensures that the scraped ink returns to the cartridge for reuse, reducing ink waste, improving ink utilization, and lowering ink consumption costs during printing. This also ensures consistent and uniform printing colors, enhancing print quality. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the existing technology;
[0020] Figure 2 For existing technology Figure 1 A partially enlarged structural diagram of point A shown in the image;
[0021] Figure 3 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 4 This is a side sectional view of the present invention.
[0023] Figure 5 This utility model Figure 3 The diagram shows a partially enlarged structural schematic at point A.
[0024] In the diagram: 1. Ink cartridge; 2. Printing roller; 3. Blade clamp; 4. Squeegee; 5. Bolt; 6. First connecting shaft; 7. Second connecting shaft; 8. Through groove; 9. Third connecting shaft; 10. Lead screw; 11. Tightening block; 12. Limiting block. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-5 This utility model discloses a gravure ink printing processing equipment, including an ink cartridge 1 and a printing roller 2 installed inside the ink cartridge 1. A doctor blade 4 is hinged to the ink cartridge 1 via a first connecting shaft 6. A second connecting shaft 7 is rotatably connected to the doctor blade 4. A through groove 8 is provided on the wall of the ink cartridge 1 for the second connecting shaft 7 to pass through. A third connecting shaft 9 is rotatably connected to the ink cartridge 1. A lead screw 10 is rotatably connected to the third connecting shaft 9. The lead screw 10 and the second connecting shaft 7 are connected by the lead screw 10. A screwing block 11 for rotating the lead screw 10 is provided on the lead screw 10. A limiting block 12 is provided at the end of the lead screw 10 to prevent the lead screw 10 and the second connecting shaft 7 from falling off. Rotating the lead screw 10 can precisely adjust the distance between the doctor blade 4 and the printing roller 2.
[0027] Near the through groove 8, there is a scale for the displacement of the second connecting shaft 7, which provides a reference when the scraper 4 is precisely adjusted.
[0028] Furthermore, the doctor blade 4 is set at an angle, and the side of the doctor blade 4 closer to the printing roller 2 is higher than the side of the doctor blade 4 farther away from the printing roller 2. The doctor blade 4 allows the scraped ink to flow back naturally to the ink cartridge 1, effectively preventing ink from accumulating around the doctor blade 4. The backflow design ensures that the scraped ink can return to the ink cartridge 1 and be reused.
[0029] To facilitate cleaning of the back of the scraper 4, the second connecting shaft 7 and the scraper 4 are detachably connected. After the second connecting shaft 7 is detached, the scraper 4 can be flipped up, and the staff can wipe and clean the back of the scraper 4.
[0030] In summary, this gravure ink printing equipment, during use, has the doctor blade 4 mounted on the ink cartridge 1 via a hinge, ensuring that the doctor blade 4 is tilted so that the side closer to the printing roller 2 is higher than the side farther from the printing roller 2, allowing the ink to flow smoothly back to the ink cartridge 1. After installation, the lead screw 10 is rotated to bring the distance between the doctor blade 4 and the printing roller 2 to its initial larger position, facilitating subsequent ink injection and initial adjustments.
[0031] Inject an appropriate amount of ink into ink cartridge 1, start the printing equipment, and allow the ink to initially distribute on printing roller 2. At this time, observe the thickness and uniformity of the ink on printing roller 2 to prepare for fine-tuning the distance between doctor blade 4 and printing roller 2.
[0032] Slowly rotate the lead screw 10 to gradually reduce the distance between the doctor blade 4 and the printing roller 2, while observing the ink scraping effect on the printing roller 2. When you see that the ink is scraped off evenly and in appropriate amount, and there is no obvious ink accumulation or scratches in the area scraped by the doctor blade 4, stop rotating the lead screw 10. At this point, the distance between the doctor blade 4 and the printing roller 2 has reached the optimal state for the current printing task.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A gravure ink printing processing device, comprising an ink cartridge (1) and a printing roller (2) installed inside the ink cartridge (1), characterized in that: A scraper (4) is hinged to the ink cartridge (1) via a first connecting shaft (6). A second connecting shaft (7) is rotatably connected to the scraper (4). A third connecting shaft (9) is rotatably connected to the ink cartridge (1). A lead screw (10) is rotatably connected to the third connecting shaft (9). The lead screw (10) and the second connecting shaft (7) are connected via the lead screw (10).
2. The gravure ink printing processing equipment according to claim 1, characterized in that: The ink cartridge (1) has a through groove (8) on its wall for the second connecting shaft (7) to pass through.
3. The gravure ink printing processing equipment according to claim 2, characterized in that: The through groove (8) is provided with a scale for the displacement reference of the second connecting shaft (7).
4. The gravure ink printing processing equipment according to claim 1, characterized in that: The scraper (4) is inclined, and the side of the scraper (4) closer to the printing roller (2) is higher than the side of the scraper (4) further away from the printing roller (2).
5. The gravure ink printing processing equipment according to claim 1, characterized in that: The second connecting shaft (7) and the scraper (4) are detachably connected.
6. The gravure ink printing processing equipment according to claim 1, characterized in that: The lead screw (10) is provided with a screwing block (11) for rotating the lead screw (10).
7. The gravure ink printing processing equipment according to claim 6, characterized in that: The end of the lead screw (10) is provided with a limiting block (12) to prevent the lead screw (10) and the second connecting shaft (7) from falling off.