Coating machine feeding device with defoaming function

Abstract

The coating machine feeding device with the defoaming function comprises a material groove, a low-position material groove, a material transferring pump and a high-position material groove, the material groove is connected with the low-position material groove through a material returning pipe, the low-position material groove is connected with the high-position material groove through a material transferring pipe, the material transferring pump is installed on the pipe section of the material transferring pipe, and the material transferring pump is connected with the high-position material groove through a material returning pipe. The high-position material tank is higher than the material tank and the low-position material tank and is connected with the material tank through a feeding pipe, a spotlight is arranged above the high-position material tank, the high-position material tank is provided with a transparent view lattice, and a liquid level marking line is arranged at the transparent view lattice. And the influence of paint liquid bubbles on the product quality can be effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating in the printing industry, and in particular relates to a coating machine feeding device with a defoaming function. Background Art

[0002] At present, in the field of printing technology, when coating machines are mass-produced, the uniformly stirred coating liquid is pumped from the coating storage barrel into the rectangular coating machine trough by an air pump. In this feeding production method, bubbles are easily generated on the surface of the liquid in the coating machine trough, and are difficult to eliminate. Such a cycle easily causes a large number of bubbles in the coating. During the coating process, these bubbles cannot be eliminated by themselves, so that the coating in the coating machine trough carries a large number of bubbles and spreads out, floating on the liquid, which not only causes the coating machine trough to overflow, but also the coated screen roller will carry bubbles. Since the surface tension of bubbles is different from that of bubbles, the thickness of the coating on the screen roller belt is uneven, resulting in poor leveling inside the coating. The bubbles in the coating are coated on the substrate with the anilox roller, forming a coating with bubble marks or uneven and smooth. Moreover, the above defects will become more serious with the increase of the coating speed, resulting in a large number of serious quality problems in the finished products, the product quality is reduced, and a large amount of coating materials are wasted, which also affects the quality of the next process. Utility Model Content

[0003] In order to overcome the above-mentioned technical problems existing in the prior art, the purpose of the utility model is to provide a coating machine feeding device with a defoaming function, which has a simple structure, is easy to implement, and has a low manufacturing cost, and can effectively prevent bubbles in the coating liquid from affecting product quality.

[0004] The utility model provides a coating machine feeding device with a defoaming function, comprising a material trough, a low-level material trough, a material transfer pump, and a high-level material trough. The material trough is connected to the low-level material trough through a return pipe, and the low-level material trough is connected to the high-level material trough through a transfer pipe. The material transfer pump is installed on the transfer pipe section. The high-level material trough is higher than the material trough and the low-level material trough, and is connected to the material trough through a feed pipe. A spotlight is provided above the high-level material trough, and the high-level material trough is provided with a transparent viewing grid, and a liquid level marking line is provided at the transparent viewing grid.

[0005] A return port is provided at the bottom of the material trough, a feed port is provided above the low-level material trough, a filter screen is provided at the feed port, one end of the return pipe is connected to the return port, and the other end is connected to the feed port.

[0006] The transfer pipe and the feed pipe are both provided with flow controllers.

[0007] The high-level trough is located 3-6 meters higher than the trough and the low-level trough.

[0008] A trough feed port is provided in the middle of the outer wall of the trough, a feed buffer plate is provided inside the trough opposite to the trough feed port, a micro-concave roller is provided above the trough, and a scraper is provided on one side of the micro-concave roller.

[0009] The coating machine feeding device with defoaming function provided by the utility model has the beneficial effect that a high-level material barrel is provided, and a material transfer pump first pumps the material into the high-level material trough, and a certain amount of bubbles are generated in the material liquid and suspended on the liquid surface in the high-level material trough, and then the material in the high-level material trough is gravity coated to reduce the generation of bubbles; a spotlight is provided above the high-level material trough, and the high-level material trough is provided with a transparent viewing grid, and a liquid level marking line is provided at the transparent viewing grid, so that the material liquid and material quantity can be easily checked; the high-level material trough has a certain material storage function, and even if the material is not added in time, it will not cause the material trough to be cut off, and the coating work will work normally using the stored material in the high-level material trough, as long as the material liquid is replenished in time before the stored material in the high-level material trough is used up. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0011] Figure 2 It is a schematic diagram of the trough result;

[0012] Note in the figure:

[0013] 1. High-level trough; 2. Flow controller; 3. Spotlight; 4. Transfer pipe; 5. Material transfer pump; 6. Low-level trough; 7. Filter; 8. Return pipe; 9. Return port; 10. Micro-concave roller; 11. Scraper; 12. Feed buffer plate; 13. Feed port of trough; 14. Feed pipe; 15. Liquid level marking line. DETAILED DESCRIPTION

[0014] The coating machine feeding device with defoaming function provided by the utility model is described in detail below with reference to the accompanying drawings and in combination with an embodiment.

[0015] Example

[0016] Reference Figure 1-Figure 2 The coating machine feeding device with defoaming function of this embodiment includes a material trough, a low-level material trough 6, a material transfer pump 5, and a high-level material trough 1. The material trough is connected to the low-level material trough 6 through a return pipe 8, and the low-level material trough 6 is connected to the high-level material trough 1 through a transfer pipe 4. The material transfer pump 5 is installed on the pipe section of the transfer pipe 4. The position of the high-level material trough 1 is higher than the material trough and the low-level material trough 6, and is connected to the material trough through a feed pipe 14. A spotlight 3 is provided above the high-level material trough 1, and the high-level material trough 1 is provided with a transparent viewing grid, and a liquid level marking line 15 is provided at the transparent viewing grid.

[0017] A return port 9 is provided at the bottom of the material trough, a feed port is provided above the low-level material trough, a filter screen 7 is provided at the feed point, one end of the return pipe 8 is connected to the return port 9, and the other end is connected to the feed port.

[0018] The transfer pipe 4 and the feed pipe 14 are both provided with a flow controller 2 .

[0019] The high-level trough 1 is located 3-6 meters higher than the trough and the low-level trough.

[0020] A trough feed port 13 is provided in the middle of the outer wall of the trough, a feed buffer plate 12 is provided inside the trough opposite to the trough feed port, a micro-concave roller 10 is provided above the trough, and a scraper 11 is provided on one side of the micro-concave roller 10.

[0021] By setting a high-level material tank 1, the coating liquid is pumped from the low-level material tank 6 into the high-level material tank 1 by a material transfer pump 5, and a certain amount of bubbles are generated in the coating liquid and suspended on the liquid surface in the high-level material tank 1, while the liquid transported to the material tank from the bottom does not contain bubbles, which effectively avoids the influence of bubbles on the coating and printing quality. The high-level material tank stores and maintains a certain thickness of liquid, and even if the material is not added in time, it will not cause the material tank to break. A filter screen is set at the feed inlet to effectively prevent tiny floating impurities from entering the material tank, thereby increasing the cleanliness of the coating liquid and improving product quality.

Claims

1. A coating machine feeding device with defoaming function, characterized in that: It includes a material trough, a low-level material trough, a material transfer pump, and a high-level material trough. The material trough is connected to the low-level material trough through a return pipe, and the low-level material trough is connected to the high-level material trough through a transfer pipe. The material transfer pump is installed on the transfer pipe section. The high-level material trough is higher than the material trough and the low-level material trough, and is connected to the material trough through a feed pipe. A spotlight is provided above the high-level material trough, and the high-level material trough is provided with a transparent viewing grid, and a liquid level marking line is provided at the transparent viewing grid.

2. The coating machine feeding device with defoaming function according to claim 1, characterized in that: A return port is provided at the bottom of the material trough, a feed port is provided above the low-level material trough, a filter screen is provided at the feed port, one end of the return pipe is connected to the return port, and the other end is connected to the feed port.

3. The coating machine feeding device with defoaming function according to claim 1, characterized in that: The transfer pipe and the feed pipe are both provided with flow controllers.

4. The coating machine feeding device with defoaming function according to claim 1, characterized in that: The high-level trough is located 3-6 meters higher than the trough and the low-level trough.

5. The coating machine feeding device with defoaming function according to claim 1, characterized in that: A trough feed port is provided in the middle of the outer wall of the trough, a feed buffer plate is provided inside the trough opposite to the trough feed port, a micro-concave roller is provided above the trough, and a scraper is provided on one side of the micro-concave roller.

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