Glue filtering device

Abstract

The utility model discloses a glue filtering device which comprises a filtering tank and a filter element installed in the filtering tank, the filtering tank comprises a base and a tank body installed on the base, the filter element is arranged on the base inside the tank body, a feeding channel is arranged on the base between the tank body and the filter element, a filtering cavity is formed inside the filter element, and the feeding channel is communicated with the filtering cavity. A discharging channel is also arranged on the base below the filter cavity; a circulating pipe is further installed at the top of the tank body, a second stop valve is installed on the circulating pipe, and the circulating pipe is communicated with the filter cavity. The defects in the prior art are overcome, caked glue is filtered, the quality of output glue is guaranteed, and therefore the yield of polaroid manufacturing is increased.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically to a glue filtration device. Background Technology

[0002] The main structure of a polarizer is TAC-PVA-TAC. During polarizer production, adhesive is typically used to bond these three layers. During use, the top layer of adhesive comes into contact with air, where it reacts with impurities or other substances to form larger clumps. During adhesive preparation, incomplete dissolution of the solute leads to smaller crystals. When these clumps and crystals are extracted and then laminated onto the polarizer, the protrusions from the clumps cause pitting defects, while the presence of crystals causes internal contamination defects, thus affecting the quality and yield of the finished polarizer. Utility Model Content

[0003] The purpose of this invention is to provide a glue filtration device that overcomes the shortcomings of the prior art.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A glue filtration device includes a filter tank and a filter element installed inside the filter tank. The filter tank includes a base and a tank body installed on the base. The filter element is disposed on the base inside the tank body. A feeding channel is provided on the base between the tank body and the filter element. The filter element has a filter cavity inside. A discharge channel is also provided on the base below the filter cavity.

[0006] A circulation pipe is also installed on the top of the tank, and a second shut-off valve is installed on the circulation pipe. The circulation pipe is connected to the filter chamber.

[0007] Furthermore, the base is provided with a connecting part, and the tank is connected to the base through the connecting part.

[0008] Furthermore, the base is mounted on the support.

[0009] Furthermore, a feed pipe is connected to the feed channel, a peristaltic pump is installed on the feed pipe, a glue tank is connected to the outside of the feed pipe, and the circulation pipe is also connected to the glue tank.

[0010] Furthermore, a discharge pipe is connected to the discharge channel, and a first shut-off valve is installed on the discharge pipe.

[0011] Compared with the prior art, the implementation effect of this utility model is as follows: The device introduces glue into the tank through a feeding channel set inside the base, and filters it through a filter element. The filtered glue is then discharged from the filter device through the discharge channel, thereby achieving the filtration of clumped glue, ensuring the quality of the output glue, and thus improving the yield of polarizer manufacturing. In addition, the circulation pipe designed by the device can effectively discharge air and glue with a large amount of air bubbles when the glue enters the filter chamber, avoiding a large amount of glue that does not meet the requirements from entering the discharge channel. This not only facilitates the recycling of unqualified glue, but also reduces glue waste. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 3 This is a cross-sectional view of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1. Support; 2. Base; 3. First shut-off valve; 4. Discharge pipe; 5. Tank body; 6. Second shut-off valve; 7. Circulation pipe; 8. Pagoda connector; 9. Feed pipe; 10. Peristaltic pump; 11. Discharge channel; 12. Feed channel; 13. Connecting part; 14. Filter element. Detailed Implementation

[0016] 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.

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1-3 As shown, the glue filtration device of this utility model includes a filter tank and a filter element 14 installed in the filter tank. The filter tank includes a base 2 and a tank body 5 installed on the base 2. The base 2 is set on the support 1 and a connecting part 13 is provided on the base 2. The tank body 5 is connected to the base 2 through the connecting part 13.

[0020] The filter element 14 is mounted on the base 2 inside the tank 5. The base 2 between the tank 5 and the filter element 14 is provided with a feed channel 12. The feed channel 12 is connected to the feed pipe 9 through the pagoda connector 8. A peristaltic pump 10 is installed on the feed pipe 9. The filter element 14 has a filter chamber inside. The base 2 below the filter chamber is also provided with a discharge channel 11. The discharge channel 11 is connected to the discharge pipe 4. A first shut-off valve 3 is installed on the discharge pipe 4.

[0021] In addition, a circulation pipe 7 is installed on the top of the tank 5, and a second shut-off valve 6 is installed on the circulation pipe 7. The circulation pipe 7 is connected to the filter chamber, such as... Figure 3 As shown.

[0022] The filter device's feed pipe 9 is connected to an external glue tank. A peristaltic pump 10 pumps glue into the feed channel 12 through the feed pipe 9. During the glue's entry into the feed channel 12, the second shut-off valve 6 is opened and the first shut-off valve 3 is closed, allowing air in the tank 5 to flow out through the circulation pipe 7. Once the space between the tank 5 and the filter element 14 is filled with glue, the glue enters the filter chamber through the filter element 14. As the glue level in the filter chamber gradually rises, the glue enters the circulation pipe 7, which is connected to the glue tank, allowing air bubbles and initially filtered glue to enter the glue tank. When the glue filtration in the filter element 14 is stable, the second shut-off valve 6 is closed and the first shut-off valve 3 is opened, allowing the glue in the filter chamber to flow into the discharge pipe 4 through the discharge channel 11 for use. During the operation of the filter device, the second shut-off valve 6 can also be opened periodically to release accumulated gas in the filter chamber, ensuring a stable flow of glue from the discharge pipe 4.

[0023] To facilitate continuous production and filter replacement, the glue filtration device can be used as a complete set. Specifically, the first shut-off valve 3 is replaced with a three-way valve, and at least two of the glue filtration devices are connected in parallel on the discharge pipe.

[0024] 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 glue filtration device, comprising a filter tank and a filter element installed inside the filter tank, characterized in that: The filter tank includes a base and a tank body mounted on the base. The filter element is disposed on the base inside the tank body. A feeding channel is provided on the base between the tank body and the filter element. The filter element has a filter cavity inside. A discharge channel is also provided on the base below the filter cavity. A circulation pipe is also installed on the top of the tank, and a second shut-off valve is installed on the circulation pipe. The circulation pipe is connected to the filter chamber.

2. The glue filtering device according to claim 1, characterized in that: The base is provided with a connecting part, and the tank is connected to the base through the connecting part.

3. The glue filtering device according to claim 1, characterized in that: The base is mounted on the bracket.

4. The glue filtering device according to claim 1, characterized in that: The feeding channel is connected to a feeding pipe, a peristaltic pump is installed on the feeding pipe, a glue tank is connected to the outside of the feeding pipe, and the circulation pipe is also connected to the glue tank.

5. The glue filtering device according to claim 1, characterized in that: The discharge channel is connected to a discharge pipe, and a first shut-off valve is installed on the discharge pipe.

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