A kind of gluing device for PET protective film production

Abstract

The utility model discloses a kind of gluing devices for PET protective film production, including connecting frame, glue feeding mechanism is provided on the connecting frame, two groups of flow guide mechanism are provided between the connecting frame and the outer bonding of glue feeding mechanism, two groups of position adjusting mechanism for adjusting the gluing width are provided on the flow guide mechanism, inclination angle adjusting mechanism for adjusting the inclination angle of flow guide mechanism is provided on the connecting frame.The flow guide mechanism set in the utility model can guide glue to glue feeding mechanism, then glue feeding mechanism can make glue coating on PET protective film, and the inclination angle adjusting mechanism set can adjust the inclination angle of flow guide mechanism according to the liquidity of glue, so that it can be guaranteed that glue is evenly sent by glue feeding mechanism for glue coating, and the position adjusting mechanism set can be adjusted along the outer position of flow guide mechanism, and such setting can block glue according to the coating width of PET protective film, to prevent glue flow waste.

Description

Technical Field

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

[0002] PET protective film, or polyethylene terephthalate protective film, is a high-performance plastic film widely used for surface protection of electronic, optical, automotive, and general industrial products. Renowned for its excellent physical properties and chemical stability, PET protective film is one of the most popular protective film materials on the market.

[0003] In the production of PET protective film, adhesive coating is a crucial step that directly affects the quality and performance of the final product. The design and selection of the adhesive coating equipment must consider factors such as the type of adhesive, coating uniformity, efficiency, and production costs. Because different protective film properties require different adhesives, different specifications need to be applied during PET protective film coating. These different specifications of adhesive have varying flow rates. When applying insufficient adhesive, the tilted and fixed guide plate can easily result in uneven coating, with either too little or too much adhesive being applied. Therefore, we propose an adhesive coating device for PET protective film production. Utility Model Content

[0004] The purpose of this invention is to provide a coating device for PET protective film production to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating device for PET protective film production, comprising a connecting frame and a mounting frame, wherein the connecting frame is configured in two sets, and a mounting frame is fixedly installed at the bottom of the connecting frame; a glue feeding mechanism for glue delivery is provided between the two sets of connecting frames; a flow guiding mechanism that fits against the outside of the glue feeding mechanism is provided between the two sets of connecting frames; two sets of position adjustment mechanisms for adjusting the coating width are provided on the flow guiding mechanism; and an angle adjustment mechanism for adjusting the tilt angle of the flow guiding mechanism is provided on the connecting frame.

[0006] Furthermore, the glue feeding mechanism includes a connecting shaft, a glue feeding roller, and a drive motor. The connecting shaft is rotatably connected to the connecting frame, and the glue feeding roller is fixedly connected to the outside of the connecting shaft. The drive motor is fixedly installed on one side of the connecting frame, and the output end of the drive motor is fixedly connected to the connecting shaft.

[0007] Furthermore, the flow guiding mechanism includes a rotating shaft, a flow guiding plate, and a connecting seat. The flow guiding plate is rotatably connected to the connecting frame via the rotating shaft. One side of the flow guiding plate is in contact with the outside of the glue feeding roller, and the connecting seat is fixedly connected to the end of the flow guiding plate away from the glue feeding roller.

[0008] Furthermore, the position adjustment mechanism includes a threaded groove, a fixing frame, a sealing gasket, a first locking bolt, and a second locking bolt. The connecting seat has multiple sets of threaded grooves, and the fixing frame overlaps on the threaded grooves. The sealing gasket is fixedly connected to the fixing frame by two sets of first locking bolts. The bottom and one side of the sealing gasket are respectively attached to the guide plate and the glue delivery roller. A second locking bolt that is threadedly connected to the threaded groove is provided on one side of the fixing frame.

[0009] Furthermore, the tilt angle adjustment mechanism includes an adjustment groove, a threaded rod, a washer, and a fixing nut. The connecting frame has an adjustment groove centered on the guide plate. The side wall of the connecting seat is fixedly connected to a threaded rod. One end of the threaded rod extends through the adjustment groove to the other side of the connecting frame. The external thread of the threaded rod is connected to a fixing nut that fits against one side of the connecting frame.

[0010] Furthermore, a washer is fixedly connected to one side of the fixing nut, and multiple sets of internal grooves are formed on the fixing nut.

[0011] Compared with the prior art, the present invention has the following advantages: The guiding mechanism of the present invention can guide the glue to the glue feeding mechanism, and then the glue feeding mechanism can coat the glue onto the PET protective film. The tilt angle adjustment mechanism can adjust the tilt angle of the guiding mechanism according to the flow of the glue, thereby ensuring that the glue is evenly fed and coated through the glue feeding mechanism. The position adjustment mechanism can be adjusted along the outer position of the guiding mechanism. This setting can block the glue according to the coating width of the PET protective film and prevent glue from flowing and wasting. Attached Figure Description

[0012] Figure 1 This is a first perspective structural diagram of the present invention;

[0013] Figure 2 This is a second perspective view of the structure of this utility model;

[0014] Figure 3 This is an enlarged schematic diagram of structure A of this utility model;

[0015] Figure 4 This is an enlarged schematic diagram of structure B of this utility model.

[0016] In the diagram: 1. Connecting frame; 2. Mounting frame; 3. Glue feeding mechanism; 4. Flow guiding mechanism; 5. Position adjustment mechanism; 6. Tilt angle adjustment mechanism; 7. Connecting shaft; 8. Glue feeding roller; 9. Drive motor; 10. Rotating shaft; 11. Flow guide plate; 12. Connecting seat; 13. Threaded groove; 14. Fixing frame; 15. Sealing gasket; 16. First locking bolt; 17. Second locking bolt; 18. Adjusting groove; 19. Threaded rod; 20. Washer; 21. Fixing nut. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 This utility model provides a technical solution: a coating device for PET protective film production, including a connecting frame 1 and a mounting frame 2. The connecting frame 1 is configured as two sets, and the mounting frame 2 is fixedly installed at the bottom of the connecting frame 1. A glue feeding mechanism 3 for glue delivery is provided between the two sets of connecting frames 1. A flow guiding mechanism 4 that is attached to the outside of the glue feeding mechanism 3 is provided between the two sets of connecting frames 1. Two sets of position adjustment mechanisms 5 for adjusting the coating width are provided on the flow guiding mechanism 4. An angle adjustment mechanism 6 for adjusting the tilt angle of the flow guiding mechanism 4 is provided on the connecting frame 1.

[0019] The flow guiding mechanism 4 guides the adhesive to the glue feeding mechanism 3, which then applies the adhesive to the PET protective film. The tilt angle adjustment mechanism 6 adjusts the tilt angle of the flow guiding mechanism 4 according to the flow of the adhesive, ensuring that the adhesive is evenly applied through the glue feeding mechanism 3. The position adjustment mechanism 5 can be adjusted along the outer position of the flow guiding mechanism 4, which can block the adhesive according to the coating width of the PET protective film, preventing the adhesive from flowing and being wasted.

[0020] Please see Figure 1 and Figure 2 The glue feeding mechanism 3 includes a connecting shaft 7, a glue feeding roller 8, and a drive motor 9. The connecting shaft 7 is rotatably connected to the connecting frame 1, and the glue feeding roller 8 is fixedly connected to the outside of the connecting shaft 7. The drive motor 9 is fixedly installed on one side of the connecting frame 1, and the output end of the drive motor 9 is fixedly connected to the connecting shaft 7.

[0021] When the flow guiding mechanism 4 guides the glue, it can be coated on the outside of the glue feeding roller 8. Then, the drive motor 9 drives the connecting shaft 7 and the glue feeding roller 8 to rotate, so that the glue attached to the outside of the glue feeding roller 8 can be transferred and coated on the PET protective film.

[0022] Please see Figure 1 , Figure 2 and Figure 3 The flow guiding mechanism 4 includes a rotating shaft 10, a flow guiding plate 11, and a connecting seat 12. The flow guiding plate 11 is rotatably connected to the connecting frame 1 via the rotating shaft 10. One side of the flow guiding plate 11 is in contact with the outside of the glue feeding roller 8, and the connecting seat 12 is fixedly connected to the end of the flow guiding plate 11 away from the glue feeding roller 8.

[0023] One end of the guide plate 11 is rotatably connected via a rotating shaft 10, and one side of the guide plate 11 is in contact with the glue feeding roller 8, so that the glue on the guide plate 11 can be transferred to the glue feeding roller 8.

[0024] Please see Figures 1-4 The tilt angle adjustment mechanism 6 includes an adjustment groove 18, a threaded rod 19, a washer 20, and a fixing nut 21. The connecting frame 1 has an adjustment groove 18 with the guide plate 11 as the axis. The side wall of the connecting seat 12 is fixedly connected to the threaded rod 19. One end of the threaded rod 19 extends through the adjustment groove 18 to the other side of the connecting frame 1. The threaded rod 19 is externally threaded with a fixing nut 21 that fits against one side of the connecting frame 1.

[0025] When it is necessary to adjust the tilt angle of the guide plate 11, unscrew the fixing nut 21 to move it away from the outside of the threaded rod 19, and then push the guide plate 11 to make the threaded rod 19 rotate along the adjustment groove 18. This allows the tilt angle of the guide plate 11 to be adjusted. After the angle adjustment is completed, the fixing nut 21 can be threadedly connected to the threaded rod 19, so that the fixing nut 21 fits against the outer wall of the connecting frame 1, thereby completing the position fixation of the guide plate 11.

[0026] Please see Figures 1-4 The position adjustment mechanism 5 includes a threaded groove 13, a fixing frame 14, a sealing gasket 15, a first locking bolt 16, and a second locking bolt 17. The connecting seat 12 has multiple sets of threaded grooves 13. The fixing frame 14 overlaps the threaded grooves 13. The sealing gasket 15 with a rubber bottom is fixedly connected to the fixing frame 14 by two sets of first locking bolts 16. The bottom and one side of the sealing gasket 15 are respectively attached to the guide plate 11 and the glue delivery roller 8. A second locking bolt 17 that is threadedly connected to the threaded groove 13 is provided on one side of the fixing frame 14.

[0027] When the width of the PET protective film coating needs to be adjusted, the fixing frame 14 is attached to the connecting seat 12. Then, the second locking bolt 17 on the fixing frame 14 corresponds to the threaded groove 13, so that the second locking bolt 17 and the threaded groove 13 are threadedly connected, thereby fixing the position of the fixing frame 14. The sealing gasket 15 is installed on the fixing frame 14 through the first locking bolt 16, so as to seal and block the glue. When the angle of the guide plate 11 is rotated and adjusted, the corresponding sealing gasket 15 can be selected to fit with the guide plate 11 and the glue delivery roller 8, thereby blocking the glue.

[0028] Please see Figure 1 and Figure 4 A washer 20 is fixedly connected to one side of the fixing nut 21. The fixing nut 21 has multiple sets of internal grooves. The washer 20 can be sleeved on the outside of the threaded rod 19, and the multiple sets of internal grooves can facilitate the rotation of the fixing nut 21.

[0029] In use, firstly, the flow guiding mechanism 4 guides the adhesive to the glue feeding mechanism 3, which then coats the PET protective film with the adhesive. The tilt angle adjustment mechanism 6 adjusts the tilt angle of the flow guiding mechanism 4 according to the adhesive's flowability, ensuring even coating of the adhesive through the glue feeding mechanism 3. The position adjustment mechanism 5 can be adjusted along the outer position of the flow guiding mechanism 4, thus blocking the adhesive flow and preventing waste. When the flow guiding mechanism 4 guides the adhesive, it coats the outside of the glue feeding roller 8. Then, the drive motor 9 rotates the connecting shaft 7 and the glue feeding roller 8, transferring the adhesive adhering to the outside of the glue feeding roller 8 onto the PET protective film. One end of the flow guiding plate 11 is rotatably connected via a rotating shaft 10, and one side of the flow guiding plate 11 is in contact with the glue feeding roller 8, allowing the adhesive on the flow guiding plate 11 to be transferred to the glue feeding roller 8. When it is necessary to tilt the flow guiding plate 11... When adjusting the tilt angle, unscrew the fixing nut 21 to move it away from the outside of the threaded rod 19, then push the guide plate 11 to rotate the threaded rod 19 along the adjustment groove 18. This allows for adjustment of the tilt angle of the guide plate 11. After the angle adjustment is complete, the fixing nut 21 can be threadedly connected to the threaded rod 19, making the fixing nut 21 fit against the outer wall of the connecting frame 1, thus fixing the position of the guide plate 11. When it is necessary to adjust the width of the PET protective film coating, the fixing frame 14 is attached to the connecting seat 12. Then, the second locking bolt 17 on the fixing frame 14 corresponds to the threaded groove 13, thus making the second locking bolt 17 threadedly connected to the threaded groove 13, thereby fixing the position of the fixing frame 14. The sealing gasket 15 is installed on the fixing frame 14 through the first locking bolt 16, thereby sealing and blocking the glue. When the angle of the guide plate 11 is adjusted by rotation, the corresponding sealing gasket 15 can be selected to fit against the guide plate 11 and the glue delivery roller 8, thereby blocking the glue.

[0030] 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 producing PET protective film, comprising a connecting frame (1) and a mounting frame (2), wherein the connecting frame (1) is configured in two sets, and the mounting frame (2) is fixedly mounted on the bottom of the connecting frame (1), characterized in that: A glue feeding mechanism (3) for glue delivery is provided between the two sets of connecting frames (1). A flow guiding mechanism (4) that fits against the outside of the glue feeding mechanism (3) is provided between the two sets of connecting frames (1). Two sets of position adjustment mechanisms (5) for adjusting the glue application width are provided on the flow guiding mechanism (4). An angle adjustment mechanism (6) for adjusting the tilt angle of the flow guiding mechanism (4) is provided on the connecting frame (1).

2. The coating apparatus for producing PET protective film according to claim 1, characterized in that: The glue feeding mechanism (3) includes a connecting shaft (7), a glue feeding roller (8) and a drive motor (9). The connecting shaft (7) is rotatably connected to the connecting frame (1). The glue feeding roller (8) is fixedly connected to the outside of the connecting shaft (7). The drive motor (9) is fixedly installed on one side of the connecting frame (1). The output end of the drive motor (9) is fixedly connected to the connecting shaft (7).

3. The coating apparatus for producing PET protective film according to claim 2, characterized in that: The flow guiding mechanism (4) includes a rotating shaft (10), a flow guiding plate (11), and a connecting seat (12). The flow guiding plate (11) is rotatably connected to the connecting frame (1) via the rotating shaft (10). One side of the flow guiding plate (11) is in contact with the outside of the glue feeding roller (8). The connecting seat (12) is fixedly connected to the end of the flow guiding plate (11) away from the glue feeding roller (8).

4. The coating apparatus for producing PET protective film according to claim 3, characterized in that: The position adjustment mechanism (5) includes a threaded groove (13), a fixing frame (14), a sealing gasket (15), a first locking bolt (16), and a second locking bolt (17). The connecting seat (12) has multiple sets of threaded grooves (13). The fixing frame (14) overlaps on the threaded grooves (13). The sealing gasket (15) is fixedly connected to the fixing frame (14) by two sets of first locking bolts (16). The bottom and one side of the sealing gasket (15) are respectively attached to the guide plate (11) and the glue delivery roller (8). A second locking bolt (17) that is threadedly connected to the threaded groove (13) is provided on one side of the fixing frame (14).

5. The coating apparatus for producing PET protective film according to claim 4, characterized in that: The tilt angle adjustment mechanism (6) includes an adjustment groove (18), a threaded rod (19), a washer (20), and a fixing nut (21). The connecting frame (1) has an adjustment groove (18) with the guide plate (11) as the axis. The side wall of the connecting seat (12) is fixedly connected to the threaded rod (19). One end of the threaded rod (19) extends through the adjustment groove (18) to the other side of the connecting frame (1). The external thread of the threaded rod (19) is connected to a fixing nut (21) that fits against one side of the connecting frame (1).

6. The coating apparatus for producing PET protective film according to claim 5, characterized in that: A washer (20) is fixedly connected to one side of the fixing nut (21), and multiple sets of internal grooves are provided on the fixing nut (21).

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