A coating device for a PET release film

Abstract

The utility model relates to PET release film production technical field discloses a kind of coating devices for PET release film, including base, second screw is rotatably installed between support, the side surface fixed mounting of right side support has second motor, the outside thread connection of second screw has second moving block, the side surface fixed connection of second moving block has moving frame, the top fixed connection of base has slide rail, the inside sliding connection of slide rail has sliding block, the upper portion of conveyer belt is equipped with scraper.The utility model can make surface silicon oil more level by the rotation of second motor, the rotation of second screw, the movement of second moving block, the movement of moving frame, the movement of scraper, sliding block moves, when second moving block moves to leftmost or rightmost end, second motor reverses, second moving block reversely moves, first rotate scraper, finally moving frame drives scraper to move, sliding block moves in succession, this equipment can make surface silicon oil more level.

Description

Technical Field

[0001] This utility model relates to the field of PET release film production technology, specifically to a coating device for PET release film. Background Technology

[0002] PET release film is a functional film made of polyethylene terephthalate (PET) as the base material and coated with release agents such as silicone oil. It features high transparency, high mechanical strength, good dimensional stability, and excellent chemical stability, high and low temperature resistance, and electrical properties. Based on release force, it can be classified into light, medium, and heavy release films; based on surface treatment, it is available in glossy and matte finishes. Due to its many superior properties, it is widely used in packaging, electronics, automotive, and medical fields, such as metallized cardboard in packaging and as a protective film in the electronics industry, playing a vital role in isolation and protection across various industries.

[0003] Existing coating devices sometimes fail to apply silicone oil properly, resulting in uneven application of silicone oil on the substrate and thus low practicality. Utility Model Content

[0004] The purpose of this invention is to provide a coating device for PET release film to solve the problem of uneven silicone oil application on the substrate due to the inability to apply silicone oil.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating device for PET release film, comprising a base, a conveyor belt fixedly mounted on the top of the base, a bracket fixedly connected to the top of the base, a second screw rotatably mounted between the brackets, a second motor fixedly mounted on the side of the right bracket, the second motor being fixedly connected to the second screw, a second moving block threadedly connected to the outer side of the second screw, a moving frame fixedly connected to the side of the second moving block, a slide rail fixedly connected to the top of the base, a slider slidably connected inside the slide rail, a scraper provided on the upper part of the conveyor belt, the scraper contacting the moving frame, the scraper being rotatably connected to the slider, a first screw rotatably connected to the middle of the base, a first moving block threadedly connected to the outer side of the first screw, a first transmission roller rotatably connected between the first moving blocks on the front side, and a second transmission roller rotatably connected between the first moving blocks on the rear side.

[0006] Preferably, a rotating wheel is fixedly connected to the bottom of the first screw, a belt is installed on the outer side of the rotating wheel, and a rotating block is fixedly connected to the bottom of the rotating wheel on the right side.

[0007] Preferably, a first slide rod is fixedly connected to the top of the base, and the first slide rod is slidably connected to the first moving block.

[0008] Preferably, a second sliding rod is fixedly connected between the brackets, and the second sliding rod is slidably connected to the second moving block.

[0009] Preferably, a first motor is fixedly installed on the side of the first moving block on the right side, the first motor on the front side is fixedly connected to the first transmission roller, and the first motor on the rear side is fixedly connected to the second transmission roller.

[0010] Preferably, an electric telescopic rod is fixedly installed on the top of the base, and the output shaft of the electric telescopic rod is fixedly installed on the coating machine body.

[0011] Preferably, a dryer is fixedly installed on the top of the base.

[0012] Preferably, the base has a collection box on top.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes the rotation of a second motor, a second screw, a second moving block, a moving frame, and a scraper to achieve a smoother silicone oil surface. When the second moving block reaches the leftmost or rightmost end, the second motor reverses, causing the second moving block and the moving frame to move in the opposite direction. The scraper is rotated first, and at this point, the contact point between the scraper and the moving frame initially approaches the second screw and then moves away from it. Finally, the moving frame drives the scraper to move, and the slider moves accordingly. This device achieves a smoother silicone oil surface. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 for Figure 1 A magnified view of the structure at point A in the middle;

[0017] Figure 3 This is a schematic diagram of the bottom structure of the base of this utility model;

[0018] Figure 4 This is a schematic diagram of the side cross-sectional structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the second moving block of this utility model moving to the leftmost end;

[0020] Figure 6 This is a schematic diagram of the structure of the second moving block of this utility model moving to the right.

[0021] In the diagram: 1. Base; 101. Collection box; 2. Conveyor belt; 3. Rotary wheel; 301. Belt; 302. First screw; 303. First slide bar; 304. First moving block; 305. First motor; 306. First transmission roller; 307. Second transmission roller; 4. Support; 401. Second motor; 402. Second screw; 403. Second slide bar; 404. Second moving block; 405. Moving frame; 406. Scraper; 407. Slider; 408. Slide rail; 5. Electric telescopic rod; 501. Coating machine body; 6. Dryer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-6This utility model provides a technical solution: a coating device for PET release film, including a base 1, a conveyor belt 2 fixedly installed on the top of the base 1, a substrate placed on the conveyor belt 2, the substrate moving backward with the conveyor belt 2, a bracket 4 fixedly connected to the top of the base 1, a second screw 402 rotatably installed between the brackets 4, a second motor 401 fixedly installed on the side of the right bracket 4, the second motor 401 being fixedly connected to the second screw 402, the second motor 401 rotating, causing the second screw 402 to rotate, the second motor 401 can rotate forward and reverse, and the outer thread of the second screw 402... A second movable block 404 is connected to the base 1. Rotation of the second screw 402 allows the second movable block 404 to move. A movable frame 405 is fixedly connected to the side of the second movable block 404, and the movable frame 405 moves with the second movable block 404. A slide rail 408 is fixedly connected to the top of the base 1, and the slide rail 408 is parallel to the second screw 402. A slider 407 is slidably connected inside the slide rail 408, and the slider 407 can slide inside the slide rail 408. A scraper 406 is provided on the upper part of the conveyor belt 2. The scraper 406 moves to apply silicone oil, making the surface smoother. The scraper 406 is connected to the movable frame 405. When the moving frame 405 moves, the scraper 406 and slider 407 can move. The friction between the moving frame 405 and the scraper 406 is small. The scraper 406 and slider 407 are rotatably connected, and the resistance to rotation is less than the sliding resistance between slider 407 and slide rail 408. When the second moving block 404 moves to the leftmost or rightmost end, the substrate moves backward a certain distance. The second motor 401 reverses, the second moving block 404 moves in the opposite direction, and the moving frame 405 moves in the opposite direction, first rotating the scraper 406. At this time, the point where the scraper 406 contacts the moving frame 405 first approaches the second screw 402. After moving away from the second screw 402, the final moving frame 405 drives the scraper 406 to move, and the slider 407 moves accordingly. The first screw 302 is rotatably connected to the middle of the base 1. The first moving block 304 is threadedly connected to the outer side of the first screw 302. The first transmission roller 306 is rotatably connected between the front first moving blocks 304, and the second transmission roller 307 is rotatably connected between the rear first moving blocks 304. The rotation of the first screw 302 can make the first moving block 304 move up and down, which is convenient for placing the substrate. The substrate enters from the first transmission roller 306, moves out from the second transmission roller 307, and is wound by subsequent equipment.

[0024] The bottom of the first screw 302 is fixedly connected to a rotating wheel 3, and a belt 301 is installed on the outside of the rotating wheel 3. The bottom of the right rotating wheel 3 is fixedly connected to a rotating block. When the right rotating wheel 3 is rotated, the left rotating wheel 3 can be rotated through the belt 301, and the first screws 302 on both sides rotate simultaneously. The front and rear first screws 302 are independent of each other.

[0025] The base 1 has a first slide bar 303 fixedly connected to its top. The first slide bar 303 is slidably connected to the first moving block 304. The function of the first slide bar 303 is to increase stability.

[0026] Among them, a second slide rod 403 is fixedly connected between the brackets 4. The second slide rod 403 is slidably connected to the second moving block 404. The second slide rod 403 is parallel to the second screw 402. The function of the second slide rod 403 is to prevent the second moving block 404 from flipping when it moves.

[0027] The first motor 305 is fixedly installed on the side of the first moving block 304 on the right side. The first motor 305 on the front side is fixedly connected to the first transmission roller 306, and the first motor 305 on the rear side is fixedly connected to the second transmission roller 307. When the first motor 305 on the front side rotates, the first transmission roller 306 rotates. When the first motor 305 on the rear side rotates, the second transmission roller 307 rotates. The first transmission roller 306 and the second transmission roller 307 rotate in opposite directions.

[0028] Among them, an electric telescopic rod 5 is fixedly installed on the top of the base 1, and the output shaft of the electric telescopic rod 5 is fixedly installed on the coating machine body 501. The coating machine body 501 extrudes silicone oil and applies it to the surface of the substrate. When the electric telescopic rod 5 works, it can make the coating machine body 501 move up and down, so that the substrate can easily pass through the bottom of the coating machine body 501 when it is installed.

[0029] A dryer 6 is fixedly installed on the top of the base 1, and the dryer 6 performs drying.

[0030] The base 1 has a collection box 101 on top. The silicone oil scraped off by the scraper 406 and the excess silicone oil flow into the collection box 101 for reuse.

[0031] Working principle: During use, the substrate is installed, and the main body 501 of the coating machine extrudes silicone oil onto the substrate surface. The second motor 401 rotates, which causes the second screw 402 to rotate, the second moving block 404 to move, the moving frame 405 to move, and the scraper 406 to move, thus spreading the silicone oil and making the surface smoother. The slider 407 moves. When the second moving block 404 moves to the leftmost or rightmost end, the second motor 401 reverses, the second moving block 404 moves in the opposite direction, and the moving frame 405 moves in the opposite direction. First, the scraper 406 rotates. At this time, the part of the scraper 406 that contacts the moving frame 405 first approaches the second screw 402 and then moves away from the second screw 402. Finally, the moving frame 405 drives the scraper 406 to move, and the slider 407 moves accordingly. The scraper 406 moves at an angle, so excess silicone oil will be carried away by the scraper 406 and will not remain on the substrate.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coating apparatus for PET release film, comprising a base (1), characterized in that: A conveyor belt (2) is fixedly installed on the top of the base (1). A bracket (4) is fixedly connected to the top of the base (1). A second screw (402) is rotatably installed between the brackets (4). A second motor (401) is fixedly installed on the side of the right bracket (4). The second motor (401) is fixedly connected to the second screw (402). A second moving block (404) is threaded to the outer side of the second screw (402). A moving frame (405) is fixedly connected to the side of the second moving block (404). A slide rail (408) is fixedly connected to the top of the base (1). The rail (408) is internally connected to a slider (407). The upper part of the conveyor belt (2) is provided with a scraper (406). The scraper (406) is in contact with the moving frame (405). The scraper (406) is rotatably connected to the slider (407). The middle part of the base (1) is rotatably connected to a first screw (302). The outer side of the first screw (302) is threadedly connected to a first moving block (304). The front first moving blocks (304) are rotatably connected to a first transmission roller (306). The rear first moving blocks (304) are rotatably connected to a second transmission roller (307).

2. The coating apparatus for PET release film according to claim 1, characterized in that: The bottom of the first screw (302) is fixedly connected to a rotating wheel (3), and a belt (301) is installed on the outside of the rotating wheel (3). A rotating block is fixedly connected to the bottom of the rotating wheel (3) on the right side.

3. The coating apparatus for PET release film according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a first slide rod (303), and the first slide rod (303) is slidably connected to the first moving block (304).

4. The coating apparatus for PET release film according to claim 1, characterized in that: A second slide rod (403) is fixedly connected between the brackets (4), and the second slide rod (403) is slidably connected to the second moving block (404).

5. The coating apparatus for PET release film according to claim 1, characterized in that: A first motor (305) is fixedly installed on the side of the first moving block (304) on the right side. The first motor (305) on the front side is fixedly connected to the first transmission roller (306), and the first motor (305) on the rear side is fixedly connected to the second transmission roller (307).

6. The coating apparatus for PET release film according to claim 1, characterized in that: An electric telescopic rod (5) is fixedly installed on the top of the base (1), and the output shaft of the electric telescopic rod (5) is fixedly installed on the coating machine body (501).

7. The coating apparatus for PET release film according to claim 1, characterized in that: A dryer (6) is fixedly installed on the top of the base (1).

8. The coating apparatus for PET release film according to claim 1, characterized in that: The base (1) is provided with a collection box (101) on top.

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