A kind of PET release film gluing device

Abstract

The utility model relates to PET release film production technical field, and disclose a kind of gluing device for PET release film, including glue storage tank, the inside rotation of glue storage tank is connected with gluing roller, the outer surface of glue storage tank is fixedly installed with first motor, the top outer surface of glue storage tank is fixedly connected with first door frame, the outer surface of first door frame is screw-penetration with first screw rod, the top outer surface of first screw rod is fixedly connected with first knob, the rotation of the opposite outer surface between the left and right sides of first inverted U-shaped frame is connected with compression roller. By first motor drive gluing roller rotation one side gluing is carried out to PET release film, and by rotating first knob makes first screw rod rotate, makes compression roller move down, drives PET release film and glue contact, makes PET release film double-sided gluing, to be able to according to the need one side or double-sided gluing work is carried out to PET release film, improves the gluing efficiency of PET release film.

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 commonly used material in heat transfer printing. The substrate is PET, which is coated with silicone oil, so it is also called silicone oil film. The standard thickness ranges from 25um to 150um. It is available in cold and hot peel and glossy / matte finishes. After anti-static and anti-scratch treatment, it has good adsorption and adhesion. During the production process of PET release film, a layer of adhesive needs to be coated on its surface, so an adhesive coating device is required.

[0003] When applying adhesive to PET release film, in the lamination process of certain adhesive products, it may be necessary to have only one side in contact with the adhesive and maintain a good release effect, while the other side does not need to be coated with release agent. However, if the PET release film needs to perform the release function on both sides, double-sided coating is required. In the existing technology, it is usually applicable to coating only one side of the release film. When double-sided coating is required, the coating work on one side must be completed before the coating work on the other side is carried out. It is not flexible to choose between single-sided or double-sided coating, which reduces the work efficiency when double-sided coating. Therefore, a coating device for PET release film is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a coating device for PET release film, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PET release film coating device, comprising a glue storage tank, a coating roller rotatably connected inside the glue storage tank, a first motor fixedly mounted on the outer surface of the glue storage tank, the output end of the first motor fixedly connected to the coating roller, a first portal frame fixedly connected to the top outer surface of the glue storage tank, a first screw threaded through the outer surface of the first portal frame, a first knob fixedly connected to the top outer surface of the first screw, a first inverted U-shaped frame rotatably connected to the bottom outer surface of the first screw, and pressure rollers rotatably connected between the opposite outer surfaces of the left and right sides of the first inverted U-shaped frame.

[0006] Furthermore, a stirring shaft is rotatably connected inside the glue storage tank, and multiple stirring blades are fixedly sleeved on the outer surface of the stirring shaft. A second motor is fixedly installed on the front outer surface of the glue storage tank, and the output end of the second motor is fixedly connected to the stirring shaft.

[0007] Furthermore, a second portal frame is fixedly connected to the top outer surface of the glue storage box, located behind the first portal frame. A second screw is threaded through the outer surface of the second portal frame. A second knob is fixedly connected to the top outer surface of the second screw. A second inverted U-shaped frame is rotatably connected to the bottom outer surface of the second screw. An upper smoothing roller is rotatably connected between the opposite outer surfaces of the left and right sides of the second inverted U-shaped frame. A lower smoothing roller is rotatably connected to the inner wall of the glue storage box, located below the upper smoothing roller.

[0008] Furthermore, one end of the coating roller is located below the surface of the coating adhesive inside the adhesive storage tank.

[0009] Furthermore, two first limiting rods are movably inserted into the outer surface of the first portal frame, and the bottom ends of the two first limiting rods are fixedly connected to the top of the first inverted U-shaped frame.

[0010] Furthermore, two second limiting rods are movably inserted into the outer surface of the second portal frame, and the bottom ends of the two second limiting rods are fixedly connected to the top of the second inverted U-shaped frame.

[0011] Furthermore, multiple heating plates are installed on the bottom inner surface of the glue storage tank.

[0012] Furthermore, the interior of the glue storage tank is rotatably connected to support rollers on both the front and rear sides of the glue coating roller.

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

[0014] 1. The PET release film coating device uses a first motor to drive the coating roller to rotate and apply adhesive to one side of the PET release film. By rotating the first knob, the first screw rotates, causing the pressure roller to move downward and bring the PET release film into contact with the adhesive, thus enabling double-sided coating of the PET release film. This allows for single-sided or double-sided coating of the PET release film as needed, improving the coating efficiency of the PET release film.

[0015] 2. The PET release film coating device heats the adhesive through a heating plate and drives the stirring shaft to rotate through a second motor. The stirring shaft drives the stirring blades to rotate, stirring the adhesive and keeping it in a flowing state to prevent it from solidifying. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a side sectional view of the present invention.

[0019] In the diagram: 1. Glue storage tank; 2. Glue application roller; 3. First motor; 4. First gantry frame; 5. First screw; 6. First knob; 7. First inverted U-shaped frame; 8. Pressure roller; 9. Lower smoothing roller; 10. Second gantry frame; 11. Second screw; 12. Second inverted U-shaped frame; 13. Upper smoothing roller; 14. Stirring shaft; 15. Stirring blade; 16. Second motor; 17. Heating plate; 18. Support roller. Detailed Implementation

[0020] 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.

[0021] Example 1:

[0022] Please refer to the following: Figures 1-3 This utility model provides a technical solution: a PET release film coating device, including a glue storage tank 1, a coating roller 2 rotatably connected inside the glue storage tank 1, a first motor 3 fixedly mounted on the outer surface of the glue storage tank 1, the output end of the first motor 3 fixedly connected to the coating roller 2, a first portal frame 4 fixedly connected to the top outer surface of the glue storage tank 1, a first screw 5 threaded through the outer surface of the first portal frame 4, a first knob 6 fixedly connected to the top outer surface of the first screw 5, a first inverted U-shaped frame 7 rotatably connected to the bottom outer surface of the first screw 5, and pressure rollers 8 rotatably connected between the opposite outer surfaces of the left and right sides of the first inverted U-shaped frame 7. Specifically, it performs single-sided coating. During the coating process, the first motor 3 drives the coating roller 2 to rotate. As the PET release film is wound up, the coating roller 2 coats one side of the PET release film. When it is necessary to coat both sides of the coating roller 2, the PET release film is wrapped around the upper surface of the support roller 18, and the first knob 6 is turned. The first knob 6 drives the first screw 5 to rotate, and the first screw 5 drives the first inverted U-shaped frame 7 to move downward, so that the pressure roller 8 presses the PET release film downward, so that one end of the PET release film comes into contact with the glue in the glue storage box 1. This allows for single-sided or double-sided coating of the PET release film as needed, improving the coating efficiency of the PET release film.

[0023] In this embodiment, a stirring shaft 14 is rotatably connected inside the glue storage tank 1. Multiple stirring blades 15 are fixedly sleeved on the outer surface of the stirring shaft 14. A second motor 16 is fixedly installed on the front outer surface of the glue storage tank 1. The output end of the second motor 16 is fixedly connected to the stirring shaft 14. Specifically, the stirring shaft 14 is driven to rotate by the second motor 16, and the stirring shaft 14 drives the stirring blades 15 to rotate, thereby stirring the glue and making the glue flow.

[0024] In this embodiment, a second portal frame 10 is fixedly connected to the top outer surface of the glue storage box 1, located behind the first portal frame 4. A second screw 11 is threaded through the outer surface of the second portal frame 10. A second knob is fixedly connected to the top outer surface of the second screw 11. A second inverted U-shaped frame 12 is rotatably connected to the bottom outer surface of the second screw 11. An upper smoothing roller 13 is rotatably connected between the opposite outer surfaces of the left and right sides of the second inverted U-shaped frame 12. A lower smoothing roller 9 is rotatably connected to the inner wall of the glue storage box 1, located below the upper smoothing roller 13. Specifically, rotating the second knob causes the second screw 11 to rotate, which in turn causes the second inverted U-shaped frame 12 to rotate, so that the upper smoothing roller 13 and the lower smoothing roller 9 are at a suitable size. The glue on both sides of the PET release film is smoothed by the upper smoothing roller 13 and the lower smoothing roller 9.

[0025] In this embodiment, one end of the coating roller 2 is located below the surface of the coating adhesive inside the glue storage tank 1. Specifically, the fact that one end of the coating roller 2 is located below the surface of the coating adhesive allows the coating roller 2 to adhere to the adhesive.

[0026] In this embodiment, two first limiting rods are movably inserted into the outer surface of the first portal frame 4. The bottom ends of the two first limiting rods are fixedly connected to the top of the first inverted U-shaped frame 7. Specifically, when the first screw 5 is rotated, the first inverted U-shaped frame 7 moves, and the first limiting rods move accordingly, so as to prevent the first inverted U-shaped frame 7 from rotating with the rotation of the first screw 5.

[0027] In this embodiment, two second limiting rods are movably inserted into the outer surface of the second portal frame 10. The bottom ends of the two second limiting rods are fixedly connected to the top of the second inverted U-shaped frame 12. Specifically, when the second screw 11 is rotated, the second inverted U-shaped frame 12 moves, and the second limiting rods move accordingly, so as to prevent the second inverted U-shaped frame 12 from rotating with the rotation of the second screw 11.

[0028] In this embodiment, a plurality of heating plates 17 are installed on the bottom inner surface of the glue storage tank 1. Specifically, the heating plates 17 are used to heat the glue inside the glue storage tank 1 to prevent it from solidifying.

[0029] In this embodiment, the interior of the glue storage tank 1 is rotatably connected to both the front and rear sides of the glue coating roller 2. Specifically, the PET release film is supported by the support rollers 18 so that the PET release film maintains a certain tension.

[0030] Working Principle: In use, the adhesive for coating is stored in the adhesive storage tank 1. When single-sided coating is required, the PET release film is wrapped around the underside of the support roller 18 and around the top of the coating roller 2. The coating roller 2 contacts the adhesive in the storage tank 1 and is driven to rotate by the first motor 3. As the PET release film is wound up, the coating roller 2 coats one side of the PET release film. When coating both sides of the coating roller 2 is required, the PET release film is wrapped around the upper surface of the support roller 18, and the first knob 6 is rotated. The first knob 6 drives the first screw 5 to rotate, and the first screw 5 drives the first inverted U-shaped... The frame 7 moves downward, causing the pressure roller 8 to press the PET release film downward, so that one end of the PET release film comes into contact with the glue in the glue storage tank 1, and the PET release film passes between the lower smoothing roller 9 and the upper smoothing roller 13. By turning the second knob, the second knob drives the second screw 11 to rotate, and the second screw 11 drives the second inverted U-shaped frame 12, so that the upper smoothing roller 13 and the lower smoothing roller 9 are at a suitable size. The upper smoothing roller 13 and the lower smoothing roller 9 smooth the glue on both sides of the PET release film, so that the PET release film can be coated with glue on one side or both sides as needed, thus improving the coating efficiency of the PET release film.

[0031] When storing the adhesive, the adhesive is heated by the heating plate 17 and the stirring shaft 14 is driven to rotate by the second motor 16. The stirring shaft 14 drives the stirring blade 15 to rotate, stirring the adhesive and keeping it in a flowing state to prevent it from solidifying.

[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, 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 coating device for PET release film, comprising a glue storage tank (1), characterized in that: The glue storage tank (1) is rotatably connected to the inside of the glue application roller (2). The outer surface of the glue storage tank (1) is fixedly installed with a first motor (3). The output end of the first motor (3) is fixedly connected to the glue application roller (2). The top outer surface of the glue storage tank (1) is fixedly connected with a first portal frame (4). The outer surface of the first portal frame (4) is threaded with a first screw (5). The top outer surface of the first screw (5) is fixedly connected with a first knob (6). The bottom outer surface of the first screw (5) is rotatably connected with a first inverted U-shaped frame (7). The left and right opposite outer surfaces of the first inverted U-shaped frame (7) are rotatably connected with pressure rollers (8).

2. The adhesive coating device for PET release film according to claim 1, characterized in that: The storage tank (1) is rotatably connected to a stirring shaft (14), and a plurality of stirring blades (15) are fixedly sleeved on the outer surface of the stirring shaft (14). A second motor (16) is fixedly installed on the front outer surface of the storage tank (1), and the output end of the second motor (16) is fixedly connected to the stirring shaft (14).

3. The adhesive coating device for PET release film according to claim 1, characterized in that: The top outer surface of the glue storage box (1) is fixedly connected to the second portal frame (10) behind the first portal frame (4). The second portal frame (10) has a second screw (11) threaded through its outer surface. The top outer surface of the second screw (11) is fixedly connected to a second knob. The bottom outer surface of the second screw (11) is rotatably connected to a second inverted U-shaped frame (12). The upper smoothing roller (13) is rotatably connected between the opposite outer surfaces of the left and right sides of the second inverted U-shaped frame (12). The inner wall of the glue storage box (1) is rotatably connected to a lower smoothing roller (9) below the upper smoothing roller (13).

4. The adhesive coating device for PET release film according to claim 1, characterized in that: One end of the coating roller (2) is located below the surface of the coating adhesive inside the glue storage tank (1).

5. The adhesive coating device for PET release film according to claim 1, characterized in that: Two first limiting rods are movably inserted on the outer surface of the first portal frame (4), and the bottom ends of the two first limiting rods are fixedly connected to the top of the first inverted U-shaped frame (7).

6. The adhesive coating device for PET release film according to claim 3, characterized in that: Two second limiting rods are movably inserted on the outer surface of the second portal frame (10), and the bottom ends of the two second limiting rods are fixedly connected to the top of the second inverted U-shaped frame (12).

7. The adhesive coating device for PET release film according to claim 1, characterized in that: Multiple heating plates (17) are installed on the bottom inner surface of the glue storage tank (1).

8. The adhesive coating device for PET release film according to claim 1, characterized in that: The interior of the glue storage tank (1) is rotatably connected to the front and rear sides of the glue coating roller (2).

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