A circulating glue filling device for a micro-concave coating machine
By designing a circulating glue replenishment device for microconcave coating machines, the problem of deterioration of coating glue leveling performance is solved, and the effect of matching the coating glue viscosity with the substrate surface tension is achieved, ensuring excellent coating performance.
Patent Information
- Application Number
- CN202421309702.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-11
AI Technical Summary
After a long period of use of the microconcave coating machine, the leveling performance of the coated glue becomes worse. The main reason is that the newly added coated coated glue is unevenly mixed with the remaining coated glue, resulting in a large overall viscosity and cannot match the surface tension of the substrate.
Design a circulating glue replenishment device for a micro-concave coating machine, including a feed tank, a extraction pipeline, a regulating tank, a viscosity detector, a liquid inlet pipeline and a rubber replenishment pipeline. The coated glue is extracted into the adjustment tank through the extraction pipe, and the viscosity of the coated glue is accurately controlled by using a viscosity detector and a one-way control valve to maintain it within a certain range. The adjusted coated glue is reflowed back into the feed tank through the rubber replenishment pipe.
Through the use of the circulating glue replenishing device, the viscosity of the coated glue matches the surface tension of the substrate, ensuring that the coated glue maintains good leveling performance during long-term circulation and ensuring excellent coating performance of the micro-concave coating machine.
Smart Images
Figure CN222739581U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of film gluing, and more specifically, to a circulating glue replenishing device for a micro-concave coating machine. Background Art
[0002] With the growing market demand for high-functional films and the popularization of wet coating technology, micro-dimple coating machines are widely used in the high-end functional film deep processing industry.
[0003] As a type of gravure coating equipment, the micro-concave coating machine belongs to roller coating. The micro-concave coating machine uses a micro-concave roller, which is mounted on a bearing and partially immersed in the feed tray; the rotating shaft carries the coating glue, which is quantitatively measured by a flexible rigid scraper and then taken away by the reverse moving substrate to achieve uniform thin layer coating. The coating glue scraped off by the flexible scraper is returned to the feed tray for use until the liquid level of the coating glue in the feed tray cannot completely fill the surface grooves of the micro-concave roller, and it is necessary to manually add glue to the feed trough.
[0004] However, according to actual production, it is found that the leveling property of the coating glue after glue filling is poor. The reason is that the newly added coating glue is not evenly mixed with the residual coating glue in the feeding tray, and because the feeding trough is generally open, the residual coating glue is left for a long time, the solvent partially evaporates, and the viscosity of the residual coating glue increases. Even after the new coating glue is added, the overall viscosity of the coating glue is still too high, which does not match the surface tension of the substrate, and the leveling performance deteriorates. Utility Model Content
[0005] In order to solve the problem that the leveling performance of the coating glue deteriorates as the placement time increases, the present application provides a circulating glue replenishing device for a micro-dimpled coating machine.
[0006] The present application provides a circulating glue filling device for a micro-dimpled coating machine, which adopts the following technical solution:
[0007] A circulating glue filling device for a micro-dimpled coating machine, comprising:
[0008] Feed trough;
[0009] An extraction pipeline, connected to the feed tank;
[0010] A regulating tank, connected to the feed tank through the extraction pipeline;
[0011] A viscosity detector is installed in the regulating tank to detect the viscosity of the coating glue in the regulating tank;
[0012] a liquid inlet pipeline, connected to the regulating tank, and conveying the solvent into the regulating tank;
[0013] A glue replenishing pipeline, wherein the feeding end of the glue replenishing pipeline is connected to the regulating tank, and the discharging end of the glue replenishing pipeline is connected to the feeding trough.
[0014] By adopting the above technical solution, the feed tank is used to store the coating glue, and the coating glue enters the adjustment tank through the extraction pipe. The solvent is replenished into the adjustment tank through the liquid inlet pipe to replenish the volatile solvent in the feed tank. After detection by the viscosity detector, the coating glue is maintained within the predetermined viscosity range. The adjusted coating glue is transported through the glue replenishment pipe and re-enters the feed tank, so that the viscosity of the coating glue in the feed tank matches the surface tension of the substrate. The coating glue maintains good leveling performance during the circulation process, ensuring that the micro-dimpled coating machine has excellent coating performance during long-term operation.
[0015] Furthermore, a one-way control valve is provided on the liquid inlet pipeline, and the one-way control valve is electrically connected to the viscosity detector.
[0016] By adopting the above technical solution, the viscosity tester can control the opening of the one-way control valve, and according to the change of viscosity, it helps to accurately control the viscosity of the coating glue within a predetermined viscosity range.
[0017] Furthermore, a liquid level meter is provided in the feed trough, and a detection end of the liquid level meter is in contact with the coating glue in the feed trough.
[0018] By adopting the above technical solution, the liquid level meter can detect the coating glue liquid level in the feed trough in real time, so as to conveniently remind the operator to replenish the coating glue in time.
[0019] Furthermore, a feed pipe is provided on the regulating tank, and the feed pipe is connected to a raw material storage tank of the coating glue.
[0020] Furthermore, a feed pump is provided on the feed pipeline.
[0021] By adopting the above technical solution, the coating glue can be automatically pumped from the coating glue raw material storage tank into the regulating tank through the cooperation of the feed pump and the feed pipeline, so as to replenish the solid content of the coating glue in time.
[0022] Furthermore, an agitator is installed in the regulating tank.
[0023] By adopting the above technical solution, the agitator can fully stir the materials in the adjusting tank, so that the materials in the adjusting tank are mixed evenly, which helps to improve the detection accuracy of the viscosity tester.
[0024] Furthermore, a one-way feed valve is provided on the glue filling pipeline, and the one-way feed valve is electrically connected to the liquid level meter.
[0025] By adopting the above technical solution, the liquid level meter monitors the liquid level of the coating glue in the feed trough in real time. When the coating glue drops to a certain liquid level, the one-way feed valve is opened to a suitable opening to replenish the coating glue in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the specific structure of a circulating glue filling device for a micro-dimpled coating machine disclosed in Example 1.
[0027] Reference numerals:
[0028] 1. Feed trough; 11. Micro-concave roller; 12. Liquid level meter; 2. Extraction pipeline; 3. Adjustment tank; 31. Feed pipeline; 32. Feed pump; 33. Liquid inlet pipeline; 34. One-way control valve; 35. Viscosity tester; 36. Agitator; 4. Glue filling pipeline; 41. One-way feed valve. DETAILED DESCRIPTION
[0029] Example 1
[0030] Figure 1 This is a schematic diagram of the specific structure of a circulating glue filling device for a micro-dimpled coating machine disclosed in Example 1. Figure 1 A circulating glue replenishing device for a micro-dimpled coating machine comprises a feed trough 1, an extraction pipe 2, an adjustment tank 3 and a glue replenishing pipe 4. The feed trough 1 contains the coating glue, the extraction pipe 2 extracts the coating glue into the adjustment tank 3, the adjustment tank 3 adjusts the viscosity of the coating glue so that the viscosity of the coating glue is maintained within a predetermined viscosity range, and the adjusted coating glue flows back to the feed trough 1 through the glue replenishing pipe 4, so that the coating glue is maintained within the predetermined viscosity range during long-term circulation use, the viscosity of the coating glue matches the surface tension of the substrate, and the leveling performance of the coating glue is excellent.
[0031] See also Figure 1 A micro-concave roller 11 is arranged at the axis of the feed trough 1. The micro-concave roller 11 is partially immersed in the feed trough 1. As the micro-concave roller 11 rotates, the coating glue is filled in the groove of the micro-concave roller 11. The feed end of the extraction pipe 2 is connected to the feed trough 1, and the discharge end of the extraction pipe 2 is connected to the adjustment tank 3. The extraction pipe 2 extracts the coating glue in the feed trough 1 into the adjustment tank 3 to adjust the viscosity.
[0032] See also Figure 1, the regulating tank 3 is provided with a feed pipe 31, a liquid inlet pipe 33 and a viscosity detector 35; the feed end of the feed pipe 31 is connected to the raw material storage tank of the coating glue, and a feed pump 32 is installed on the feed pipe 31. The feed pump 32 automatically pumps the new coating glue into the regulating tank 3 to replenish the solid content of the coating glue in time and save manpower. The liquid inlet end of the liquid inlet pipe 33 is connected to the solvent storage tank, and the liquid inlet pipe 33 is used to replenish the solvent into the regulating tank 3. A one-way control valve 34 is provided on the liquid inlet pipe 33. The detection end of the viscosity detector 35 extends into the regulating tank 3 to measure the viscosity of the coating glue in the regulating tank 3. The viscosity detector 35 is electrically connected to the one-way control valve 34. The viscosity detector 35 can control the opening of the one-way control valve 34, and accurately control the amount of solvent entering according to the change of the viscosity of the coating glue in the regulating tank 3, so that the viscosity of the coating glue is maintained within a predetermined viscosity range. When the viscosity of the coating glue in the regulating tank 3 exceeds a predetermined range, the liquid inlet pipe 33 replenishes solvent into the regulating tank 3 to dilute the coating glue.
[0033] See also Figure 1 A stirrer 36 is provided in the regulating tank 3. The stirrer 36 fully stirs the materials in the regulating tank 3 so that the materials in the regulating tank 3 are evenly mixed, and the measurement of the viscosity detector 35 is more accurate.
[0034] See also Figure 1 The glue supply pipe 4 connects the regulating tank 3 and the feed tank 1. The glue supply pipe 4 supplies the coating glue adjusted to a moderate viscosity in the regulating tank 3 to the feed tank 1, so that the coating glue liquid level in the feed tank 1 remains stable. A liquid level gauge 12 is provided in the feed tank 1, and a one-way feed valve 41 is provided on the glue supply pipe 4. The one-way feed valve 41 is electrically connected to the liquid level gauge 12. When the coating glue liquid level in the feed tank 1 drops to a certain level, the liquid level gauge 12 controls the one-way feed valve 41 to open, and the coating glue is replenished to the feed tank 1 in time.
[0035] The specific usage of this embodiment is as follows: the coating glue in the feed trough 1 enters the adjusting tank 3 through the extraction pipe 2 for viscosity detection, the one-way control valve 34 and the feed pipe 31 are opened, and the solid content and solvent of the coating glue are added to the adjusting tank 3. According to the detection data of the viscosity detector 35, the coating glue is adjusted to a suitable viscosity range. After the adjustment is completed, the liquid level meter 12 controls the one-way feed valve 41 to open to a suitable opening, and the coating glue is added to the feed trough 1 in time.
[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0037] Moreover, the above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.
Claims
1. A circulating glue filling device for a micro-dimpled coating machine, characterized in that: include: Feed trough (1); An extraction pipeline (2) is connected to the feed tank (1); A regulating tank (3) is connected to the feed tank (1) through the extraction pipe (2); A viscosity detector (35) is installed in the regulating tank (3) to detect the viscosity of the coating adhesive in the regulating tank (3); A liquid inlet pipe (33) is connected to the regulating tank (3) and conveys the solvent into the regulating tank (3); A glue replenishing pipeline (4), wherein the feeding end of the glue replenishing pipeline (4) is connected to the regulating tank (3), and the discharging end of the glue replenishing pipeline (4) is connected to the feeding trough (1).
2. The circulating glue filling device of the micro-dimpled coating machine according to claim 1, characterized in that: A one-way control valve (34) is provided on the liquid inlet pipeline (33), and the one-way control valve (34) is electrically connected to the viscosity detector (35).
3. The circulating glue filling device of the micro-dimpled coating machine according to claim 1, characterized in that: A liquid level meter (12) is provided in the feed trough (1), and a detection end of the liquid level meter (12) is in contact with the coating glue in the feed trough (1).
4. The circulating glue filling device of the micro-dimpled coating machine according to claim 1, characterized in that: The regulating tank (3) is provided with a feed pipe (31), and the feed pipe (31) is connected to a raw material storage tank of the coating glue.
5. The circulating glue filling device of the micro-dimpled coating machine according to claim 4, characterized in that: The feed pipeline (31) is provided with a feed pump (32).
6. The circulating glue filling device of the micro-dimpled coating machine according to claim 1, characterized in that: A stirrer (36) is installed in the regulating tank (3).
7. The circulating glue filling device of the micro-dimpled coating machine according to claim 3, characterized in that: The glue replenishing pipeline (4) is provided with a one-way feed valve (41), and the one-way feed valve (41) is electrically connected to the liquid level meter (12).