Online coating equipment for PET (Polyethylene Terephthalate) membrane protective layer

Abstract

The utility model discloses online coating equipment for a protective layer of a PET (Polyethylene Terephthalate) membrane, and relates to the technical field of PET membranes. The PET membrane protective layer online coating equipment comprises a bottom plate, an adjusting assembly and a slicking assembly, a coating groove is fixedly formed in the top of the bottom plate, the adjusting assembly is arranged on the bottom plate, the slicking assembly is arranged on the coating groove, the slicking assembly comprises a fixing plate, a spring and a scraper, the spring is fixedly arranged on one side of the fixing plate, and the scraper is arranged on the other side of the fixing plate. And a scraping plate is fixedly mounted at the other end of the spring. Through the arrangement of the scraping assembly, the scraping plate not only can flatten the coating, but also can remove excessive coating, so that the coating cost can be saved, the uniformity and consistency of a protective layer material on the surface of the PET membrane can be effectively guaranteed, and the situation that the coating is uneven in thickness or missed in the coating process is avoided; the coating can be smoother and more stable in the coating process, and the shutdown and adjustment time in the coating process is shortened, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PET film, and particularly relates to an online coating device for a protective layer of a PET film. Background Art

[0002] A PET film is a thin film material made of polyester resin, also known as a polyester film. PET is the abbreviation of polyethylene terephthalate, which is a common engineering plastic.

[0003] After exploration and analysis, in actual use, there are the following disadvantages:

[0004] When some existing coating devices coat a PET film, the protective layer material is usually evenly coated on the surface of the PET film through a roller coating system. Therefore, the thickness of the coating layer is uneven, and it is even possible that too much or too little coating appears in some areas, thus affecting the consistency and reliability of the product.

[0005] In summary, the present application now proposes an online coating device for a protective layer of a PET film to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an online coating device for a protective layer of a PET film, which can solve the problem that when the protective layer material is usually evenly coated on the surface of the PET film through a roller coating system, the thickness of the coating layer is uneven, and it is even possible that too much or too little coating appears in some areas.

[0007] To achieve the above purpose, the utility model provides the following technical solution: an online coating device for a protective layer of a PET film, comprising:

[0008] A bottom plate, on the top of which a paint tank is fixedly installed;

[0009] An adjusting component, which is arranged on the bottom plate;

[0010] A leveling component, which is arranged on the paint tank. The leveling component includes a fixing plate, a spring and a scraper. One side of the fixing plate is fixedly installed with a spring, and the other end of the spring is fixedly installed with a scraper.

[0011] Preferably, two fixing brackets are fixedly installed on the top of the bottom plate and are distributed left and right. Guide rollers are rotatably installed on the front and rear inner walls of the fixing brackets to play a guiding role in the transmission of the PET film.

[0012] Preferably, the adjusting assembly includes a U-shaped plate, an adjusting roller and a threaded column. A U-shaped plate is arranged inside the fixed bracket. An adjusting roller is rotatably installed on the front and rear inner walls of the U-shaped plate. The thickness of the PET film may vary. By adjusting the distance between the guide roller and the adjusting roller, the flatness and stability of the film during the coating process can be ensured, the thickness of the coating layer can be precisely controlled, and consistent coating quality can be obtained under different production requirements.

[0013] Preferably, a coating roller is rotatably installed on the rear inner wall of the coating tank, a motor is fixedly installed on the front side of the coating tank, the front end of the coating roller passes through the coating tank and is fixedly installed with the output shaft of the motor, and the coating tank contains coating. By driving the coating roller to rotate at a constant speed by the motor, the outer wall of the coating roller is always adhered with coating.

[0014] Preferably, a sponge wipe is fixedly installed on one inner wall of the coating tank, and one side of the sponge wipe is in contact with the outer wall of the coating roller, so that the coating is more uniform on the outer wall of the coating roller.

[0015] Preferably, the fixing plate is fixedly installed on the coating tank. There are multiple groups of springs arranged longitudinally, and a damper is arranged inside the springs. The scraper is in contact with the bottom of the PET film. The scraper can not only level the coating, but also remove excessive coating, thereby saving coating costs, effectively ensuring the uniformity and consistency of the protective layer material on the surface of the PET film, avoiding uneven thickness or missed coating of the coating during the coating process, and at the same time, through the action of the scraper, the coating can be made more smooth and stable during the coating process, reducing the downtime and adjustment time during the coating process, thereby improving production efficiency.

[0016] Preferably, a drying box is fixedly installed on the top of the bottom plate, and openings communicating with each other are formed on the outer walls on both sides of the drying box, which can perform drying operation on the PET film.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] (1) For this on-line coating equipment for the PET film protective layer, through the combined use of the guide roller, U-shaped plate, adjusting roller and threaded column, the thickness of the PET film may vary. By adjusting the distance between the guide roller and the adjusting roller, the flatness and stability of the film during the coating process can be ensured, the thickness of the coating layer can be precisely controlled, and consistent coating quality can be obtained under different production requirements.

[0019] (2) The on-line coating equipment for the PET film protective layer, through the combined use of the fixing plate, spring and scraper, can not only level the coating, but also remove excessive coating, thus saving coating costs, effectively ensuring the uniformity and consistency of the protective layer material on the surface of the PET film, avoiding uneven thickness or missed coating of the coating during the coating process. At the same time, through the action of the scraper, the coating can be made more smooth and stable during the coating process, reducing the downtime and adjustment time during the coating process, thereby improving production efficiency. Description of the Drawings

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0021] Figure 1 is a perspective view of the present utility model;

[0022] Figure 2 is a perspective cross-sectional view of the present utility model;

[0023] Figure 3 is a schematic structural view of the leveling assembly of the present utility model.

[0024] Reference numerals: 1, bottom plate; 2, fixed bracket; 3, guide roller; 4, U-shaped plate; 5, adjusting roller; 6, threaded column; 7, paint tank; 8, paint roller; 9, motor; 10, sponge wipe; 11, fixing plate; 12, spring; 13, scraper; 14, drying oven. Detailed Embodiment

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: an on-line coating equipment for the PET film protective layer, including a bottom plate 1, an adjusting assembly and a leveling assembly. A paint tank 7 is fixedly installed on the top of the bottom plate 1. The adjusting assembly is arranged on the bottom plate 1, and the leveling assembly is arranged on the paint tank 7. The leveling assembly includes a fixing plate 11, a spring 12 and a scraper 13. One side of the fixing plate 11 is fixedly installed with a spring 12, and the other end of the spring 12 is fixedly installed with a scraper 13.

[0027] Furthermore, two groups of fixed brackets 2 are fixedly installed on the top of the bottom plate 1 and are distributed left and right. Guide rollers 3 are rotatably installed on the front and rear inner walls of the fixed brackets 2 to play a guiding role in the transmission of the PET film.

[0028] Furthermore, the adjusting assembly includes a U-shaped plate 4, an adjusting roller 5 and a threaded column 6. The U-shaped plate 4 is arranged inside the fixed bracket 2. The threaded column 6 is rotatably installed at the top of the U-shaped plate 4, and the top end of the threaded column 6 extends above the fixed bracket 2. The adjusting roller 5 is rotatably installed on the front and rear inner walls of the U-shaped plate 4. The thickness of the PET film may vary. The operator rotates the threaded column 6 to drive the U-shaped plate 4 to move up and down, so that the distance between the guide roller 3 and the adjusting roller 5 can be adjusted to adapt to the thickness of the PET film. By adjusting the distance between the guide roller 3 and the adjusting roller 5, the flatness and stability of the film during the coating process can be ensured, the thickness of the coating layer can be accurately controlled, and consistent coating quality can be obtained under different production requirements.

[0029] Furthermore, a coating roller 8 is rotatably installed on the rear inner wall of the coating tank 7. A motor 9 is fixedly installed on the front side of the coating tank 7. The front end of the coating roller 8 passes through the coating tank 7 and is fixedly installed with the output shaft of the motor 9. The coating tank 7 contains coating. The motor 9 drives the coating roller 8 to rotate at a constant speed, so that the outer wall of the coating roller 8 is always adhered with coating.

[0030] Most further, a sponge wipe 10 is fixedly installed on one inner wall of the coating tank 7. One side of the sponge wipe 10 is in contact with the outer wall of the coating roller 8, so that the coating on the outer wall of the coating roller 8 is more uniform.

[0031] Secondly, the fixing plate 11 is fixedly installed on the coating tank 7. There are multiple groups of springs 12 arranged longitudinally. A damper is arranged inside the springs 12. The scraper 13 is in contact with the bottom of the PET film. Through the transmission of the PET film, the scraper 13 levels the coating on the PET film. The scraper 13 can not only level the coating, but also remove excessive coating, thus saving coating costs, effectively ensuring the uniformity and consistency of the protective layer material on the surface of the PET film, avoiding uneven thickness or missed coating of the coating during the coating process. At the same time, through the action of the scraper 13, the coating can be more smooth and stable during the coating process, reducing the downtime and adjustment time during the coating process, thereby improving production efficiency.

[0032] Secondly, a drying box 14 is fixedly installed on the top of the bottom plate 1. Openings communicating with each other are provided on the outer walls on both sides of the drying box 14, which can perform drying operation on the PET film.

[0033] Working principle: When in use, first adjust the distance between the guide roller 3 and the adjusting roller 5 according to the thickness of the PET film. The operator rotates the threaded column 6 to drive the U-shaped plate 4 to move up and down, and then the distance between the guide roller 3 and the adjusting roller 5 can be adjusted to adapt to the thickness of the PET film. Then, pass the PET film through the guide roller 3 and the adjusting roller 5 on the left to contact the coating roller 8, then pass through the drying oven 14 and through the guide roller 3 and the adjusting roller 5 on the right. Start the motor 9, and drive the coating roller 8 to rotate at a constant speed through the motor 9, so that the coating roller 8 rotates in the coating in the coating tank 7 and adheres to the surface of the coating roller 8. At the same time, during the rotation of the coating roller 8, it contacts the sponge wiper 10, so that the sponge wiper 10 smears the surface of the coating roller 8 more evenly. During the transmission process, the PET film contacts the outer wall of the coating roller 8, so that the coating on the outer wall of the coating roller 8 adheres to the surface of the PET film. Through the transmission of the PET film, the squeegee 13 levels the coating on the PET film, and then it is conveyed into the drying oven 14 for drying operation.

[0034] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A PET film protective layer online coating device, characterized in that: include: A bottom plate (1), a coating material tank (7) being fixedly mounted on the top of the bottom plate (1); An adjustment component is arranged on the bottom plate (1), and comprises a U-shaped plate (4), an adjustment roller (5) and a threaded column (6); the U-shaped plate (4) is arranged inside the fixed bracket (2); the threaded column (6) is rotatably mounted on the top of the U-shaped plate (4); the top end of the threaded column (6) extends to the top of the fixed bracket (2); and the adjustment roller (5) is rotatably mounted on the front and rear inner walls of the U-shaped plate (4); The scraping assembly is arranged on a paint tank (7), and comprises a fixing plate (11), a spring (12) and a scraper (13). The spring (12) is fixedly mounted on one side of the fixing plate (11), and the scraper (13) is fixedly mounted on the other end of the spring (12).

2. The PET film protective layer online coating device according to claim 1, characterized in that: Two groups of fixed brackets (2) are fixedly installed on the top of the bottom plate (1) and are distributed on the left and right sides. Guide rollers (3) are rotatably installed on the front and rear inner walls of the fixed brackets (2).

3. The PET film protective layer online coating device according to claim 2, characterized in that: A paint roller (8) is rotatably mounted on the inner wall of the rear side of the paint tank (7), a motor (9) is fixedly mounted on the front side of the paint tank (7), the front end of the paint roller (8) passes through the paint tank (7) and is fixedly mounted on the output shaft of the motor (9), and paint is contained inside the paint tank (7).

4. The PET film protective layer online coating device according to claim 3, characterized in that: A sponge (10) is fixedly mounted on one inner wall of the coating tank (7), and one side of the sponge (10) is in contact with the outer wall of the coating roller (8).

5. The PET film protective layer online coating device according to claim 4, characterized in that: The fixing plate (11) is fixedly mounted on the coating tank (7), the springs (12) have multiple groups and are arranged longitudinally, a damper is arranged inside the springs (12), and the scraper (13) contacts the bottom of the PET film.

6. The PET film protective layer online coating device according to claim 5, characterized in that: A drying box (14) is fixedly mounted on the top of the bottom plate (1), and interconnected openings are formed on the outer walls of both sides of the drying box (14).

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