Gluing mechanism for protective film production

Abstract

The utility model relates to the technical field of protective film production, and discloses a gluing mechanism for protective film production, the gluing mechanism comprises a support, the upper surface of the support is fixedly connected with four stand columns, the outer circumferential surfaces of the four stand columns are slidably connected with a glue groove, the interior of the support is rotatably connected with two first lead screws, and the two first lead screws are arranged in the glue groove. The outer circumferential surface of the first screw rod is in threaded connection with the interior of the glue groove, and the outer circumferential surface of each first screw rod is fixedly sleeved with a worm wheel. According to the gluing mechanism for protective film production, the gluing roller and the gluing roller are arranged above the glue groove, the problem of glue leakage in the gluing process is effectively avoided, a worm rotates to drive a worm wheel to rotate, a first lead screw is promoted to drive the glue groove to ascend and descend, then the glue groove is conveniently cleaned and maintained, the gluing operation quality is guaranteed, and the working efficiency is improved. The problems that glue of an existing gluing mechanism is prone to leaking, normal gluing operation is affected, and a glue groove is inconvenient to clean and maintain due to the fact that the interior of the glue groove is closed are solved.

Description

Technical Field

[0001] The present application relates to the technical field of protective film production, and specifically relates to a glue coating mechanism for protective film production. Background Art

[0002] A protective film is a thin film covering the surface of an object, used to protect the object from the external environment, pollution, scratches or damage.

[0003] The existing patent (publication number: CN 220611045U) discloses a new type of glue coating device for protective film production, including: a main body, a driving mechanism and an adjusting mechanism. The main body includes a glue tank, a support rod, a glue application roller, a mounting plate and a coating roller. The top of the glue tank is open. Four groups of support rods are fixedly connected to the bottom of the glue tank. The bottom of the glue tank has an opening that fits the glue application roller. The glue application roller is rotatably connected inside the opening. Two groups of mounting plates are provided, and the coating roller is rotatably connected between the two groups of mounting plates. The driving mechanism is used to drive the mounting plate and the coating roller to rotate in the same direction, so as to transfer the glue from the glue application roller to the coating roller. The adjusting mechanism includes a partition plate, a slide rod, a movable plate, a threaded cylinder and an adjusting component. The beneficial effects are: by setting the adjusting mechanism, the device can adjust the coating range of the coating roller. During actual use, the coating range of the coating roller can be adjusted according to the width of the protective film, which is convenient for manual control of glue loss. When using the adjusting mechanism, only need to rotate the turntable, and the operation is simple.

[0004] The glue application roller of the above glue coating mechanism is arranged at the bottom of the glue tank, and the glue is prone to leakage during the glue application process, affecting the normal glue coating operation. In addition, the inside of the glue tank is relatively closed, which is not convenient for cleaning the glue tank. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the present application provides a glue coating mechanism for protective film production, which has the advantages of being able to avoid glue leakage during the glue coating process and being convenient for cleaning and maintaining the glue tank, and solves the problems that the glue application roller of the existing glue coating mechanism is arranged at the bottom of the glue tank, the glue is prone to leakage during the glue application process, affecting the normal glue coating operation, and the inside of the glue tank is relatively closed, which is not convenient for cleaning the glue tank.

[0006] To achieve the above object, the present application provides the following technical solutions: A glue coating mechanism for producing a protective film, including a bracket, on the upper surface of the bracket are fixedly connected with four columns, and a glue tank is slidably connected to the outer circumferential surfaces of the four columns. Inside the bracket are rotatably connected two first lead screws, the outer circumferential surface of the first lead screw is threadedly connected to the inside of the glue tank, and on the outer circumferential surface of each first lead screw is fixedly sleeved a worm gear. Inside the bracket is rotatably inserted a worm, and on the left side of the worm is provided a first motor, and the worm gear is in transmission connection with the worm. Inside the bracket is rotatably connected an upper glue roller, and inside the bracket is rotatably connected a glue coating roller. On the inner wall of the glue tank are slidably connected two movable plates, and the movable plates are in contact with the outer circumferential surface of the upper glue roller through arc-shaped grooves opened inside.

[0007] Through the above solution, since the upper glue roller of the existing glue coating mechanism is arranged at the bottom of the glue tank, the glue is prone to leakage during the glue coating process, affecting the normal glue coating operation, and the inside of the glue tank is relatively closed, which is not convenient for cleaning the glue tank. By arranging the upper glue roller and the glue coating roller above the glue tank, the problem of glue leakage during the glue coating process is effectively avoided. By rotating the worm to drive the worm gear to rotate, the first lead screw is promoted to drive the glue tank to lift, thereby facilitating the cleaning and maintenance of the glue tank and ensuring the quality of the glue coating operation.

[0008] Furthermore, on the outer circumferential surface of each first lead screw is fixedly sleeved a first collar, and the outer circumferential surface of the first collar is rotatably connected to the inside of the bracket.

[0009] Through the above solution, the first lead screw is restricted to prevent the first lead screw from sliding off.

[0010] Furthermore, on the left side of the upper glue roller is provided a second motor, the upper glue roller extends into the inside of the glue tank, and a connecting belt is in transmission connection between the upper glue roller and the glue coating roller.

[0011] Through the above solution, the second motor provides power for the upper glue roller, and the connecting belt realizes the linkage between the upper glue roller and the glue coating roller.

[0012] Furthermore, on the outer circumferential surface of the upper glue roller are fixedly sleeved two second collars, the outer circumferential surface of the second collars is rotatably connected to the inside of the bracket, and on the outer circumferential surface of the glue coating roller are fixedly sleeved two third collars, the outer circumferential surface of the third collars is rotatably connected to the inside of the bracket.

[0013] Through the above solution, the second collars and the third collars can respectively restrict and reinforce the upper glue roller and the glue coating roller, improving the stability of the upper glue roller and the glue coating roller during the operation process.

[0014] Further, a second lead screw is rotatably connected inside the glue tank. Two threaded tubes are threadedly connected to the outer circumferential surface of the second lead screw. A connecting plate is fixedly connected to the outer circumferential surface of each threaded tube. The other end of the connecting plate away from the threaded tube is fixedly connected to the upper surface of the movable plate.

[0015] Through the above solution, by rotating the second lead screw, the threaded tubes are driven to move in opposite directions, prompting the connecting plates to drive the movable plate to move for retraction and extension, and then the glue application area is controlled according to the size of the protective film.

[0016] Further, two fourth collars are fixedly sleeved on the outer circumferential surface of the second lead screw. The outer circumferential surface of the fourth collar is rotatably connected to the inside of the glue tank.

[0017] Through the above solution, the second lead screw is restricted to prevent the second lead screw from sliding and shifting, improving the stability of the movement of the second lead screw.

[0018] Further, a sleeve is fixedly connected to the outer surface of each connecting plate. A cross bar is fixedly connected to the front surface of the glue tank. The inner wall of the sleeve is slidably sleeved on the outer circumferential surface of the cross bar.

[0019] Through the above solution, the threaded tube is restricted to prevent the threaded tube from rotating with the second lead screw, prompting the connecting plate to always drive the movable plate to move horizontally.

[0020] Further, a glue outlet pipe is provided at the bottom of the glue tank. A sealing cover is threadedly sleeved on the outer circumferential surface of the glue outlet pipe.

[0021] Through the above solution, the glue can be discharged from the glue tank through the glue outlet pipe, and then it is convenient to clean and maintain the glue tank.

[0022] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0023] For the glue application mechanism for producing the protective film, by arranging the glue application roller and the coating roller above the glue tank, the problem of glue leakage during the glue application process is effectively avoided. By rotating the worm to drive the worm gear to rotate, the first lead screw drives the glue tank to lift, and then it is convenient to clean and maintain the glue tank, ensuring the quality of the glue application operation, and solving the problems that the glue of the existing glue application mechanism is prone to leakage, affecting the normal glue application operation, and the inside of the glue tank is relatively closed, making it inconvenient to clean and maintain the glue tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall three-dimensional structure diagram of the present application;

[0025] Figure 2 It is the structure diagram of the bracket of the present application;

[0026] Figure 3 This is the structural diagram of the glue tank of the present application;

[0027] Figure 4 This is the structural diagram of the movable plate of the present application.

[0028] In the figure:

[0029] 1. Bracket; 2. Column; 3. Glue tank; 4. First lead screw; 5. First collar; 6. Worm gear; 7. First motor; 8. Worm; 9. Glue application roller; 10. Second motor; 11. Coating roller; 12. Connecting belt; 13. Second collar; 14. Third collar; 15. Movable plate; 16. Second lead screw; 17. Fourth collar; 18. Threaded pipe; 19. Connecting plate; 20. Sleeve; 21. Cross bar; 22. Glue outlet pipe; 23. Sealing cover. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , a glue application mechanism for producing a protective film in this embodiment includes a bracket 1. Four columns 2 are fixedly connected to the upper surface of the bracket 1. An outer circumferential surface of the four columns 2 is slidably connected to a glue tank 3. Two first lead screws 4 are rotatably connected inside the bracket 1. An outer circumferential surface of the first lead screw 4 is threadedly connected to the inside of the glue tank 3. An outer circumferential surface of each first lead screw 4 is fixedly sleeved with a worm gear 6. A worm 8 is rotatably inserted inside the bracket 1. A first motor 7 is provided on the left side of the worm 8. The worm gear 6 is in transmission connection with the worm 8. A glue application roller 9 is rotatably connected inside the bracket 1. A coating roller 11 is rotatably connected inside the bracket 1. Inner walls of the glue tank 3 are slidably connected to two movable plates 15. The movable plates 15 are in contact with an outer circumferential surface of the glue application roller 9 through arc-shaped grooves opened inside.

[0032] Please refer to Figure 3 , an outer circumferential surface of each first lead screw 4 is fixedly sleeved with a first collar 5. An outer circumferential surface of the first collar 5 is rotatably connected to the inside of the bracket 1 to limit the first lead screw 4 and prevent the first lead screw 4 from sliding off.

[0033] Please refer to Figure 1 , Figure 2 and Figure 4, a second motor 10 is provided on the left side of the gluing roller 9. The gluing roller 9 extends into the glue tank 3. A connecting belt 12 is drivingly connected between the gluing roller 9 and the coating roller 11. The second motor 10 provides power for the gluing roller 9, and the linkage between the gluing roller 9 and the coating roller 11 is realized through the connecting belt 12.

[0034] Please refer to Figure 2 , two second collars 13 are fixedly sleeved on the outer circumferential surface of the gluing roller 9. The outer circumferential surface of the second collar 13 is rotatably connected to the inside of the bracket 1. Two third collars 14 are fixedly sleeved on the outer circumferential surface of the coating roller 11. The outer circumferential surface of the third collar 14 is rotatably connected to the inside of the bracket 1. The second collar 13 and the third collar 14 can respectively limit and reinforce the gluing roller 9 and the coating roller 11, improving the stability of the gluing roller 9 and the coating roller 11 during operation.

[0035] Please refer to Figure 1 and Figure 3 , a second lead screw 16 is rotatably connected to the inside of the glue tank 3. Two threaded tubes 18 are threadedly connected to the outer circumferential surface of the second lead screw 16. The outer circumferential surface of each threaded tube 18 is fixedly connected to a connecting plate 19. The other end of the connecting plate 19 away from the threaded tube 18 is respectively fixedly connected to the upper surface of the movable plate 15. By rotating the second lead screw 16, the threaded tubes 18 are driven to move in opposite directions, prompting the connecting plates 19 to drive the movable plate 15 to move and retract, and thus controlling the coating area according to the size of the protective film.

[0036] Please refer to Figure 3 , two fourth collars 17 are fixedly sleeved on the outer circumferential surface of the second lead screw 16. The outer circumferential surface of the fourth collar 17 is rotatably connected to the inside of the glue tank 3, restricting the second lead screw 16 to prevent it from sliding and shifting, and improving the stability of the movement of the second lead screw 16.

[0037] Please refer to Figure 1 and Figure 3 , the outer surface of each connecting plate 19 is fixedly connected to a sleeve 20. The front of the glue tank 3 is fixedly connected to a cross bar 21. The inner wall of the sleeve 20 is slidably sleeved on the outer circumferential surface of the cross bar 21, restricting the threaded tube 18 to prevent it from rotating with the second lead screw 16, and prompting the connecting plate 19 to always drive the movable plate 15 to move horizontally.

[0038] Please refer to Figure 4 , a glue outlet pipe 22 is provided at the bottom of the glue tank 3. A sealing cover 23 is threadedly sleeved on the outer circumferential surface of the glue outlet pipe 22. The glue can be discharged from the glue tank 3 through the glue outlet pipe 22, facilitating the cleaning and maintenance of the glue tank 3.

[0039] A glue - applying mechanism for producing a protective film in this embodiment effectively avoids the problem of glue leakage during the glue - applying process by arranging the glue - applying roller 9 and the coating roller 11 above the glue tank 3. By rotating the worm 8 to drive the worm gear 6 to rotate, the first lead screw 4 drives the glue tank 3 to move up and down, which is convenient for cleaning and maintaining the glue tank 3, ensuring the quality of the glue - applying operation, and solving the problems that the glue of the existing glue - applying mechanism is prone to leakage, affecting the normal glue - applying operation, and the inside of the glue tank 3 is relatively enclosed, making it inconvenient to clean and maintain the glue tank 3.

[0040] It should be noted that the second lead screw 16 is a bidirectional lead screw.

[0041] The working principle of the above - mentioned embodiment is as follows:

[0042] During glue - applying, glue is injected between the two movable plates 15 inside the glue tank 3. Start the second motor 10 as the power to drive the glue - applying roller 9 to rotate. The glue - applying roller 9 drives the coating roller 11 to rotate through the connecting belt 12. When the glue - applying roller 9 rotates, the glue in the glue tank 3 adheres to the surface of the glue - applying roller 9. Then, the glue - applying roller 9 transfers the glue on its surface to the contact surface with the coating roller 11. When the coating roller 11 rotates, the glue is applied to the surface of the protective film. The second lead screw 16 can be rotated to drive the threaded tube 18 to move in the opposite direction. The threaded tube 18 drives the movable plate 15 to move in the opposite direction through the connecting plate 19, thereby adjusting the distance between the movable plates 15 according to the width of the protective film. When it is necessary to clean and maintain the glue tank 3, the first motor 7 can be started as the power to drive the worm 8 to rotate. The worm 8 drives the first lead screw 4 to rotate through the worm gear 6. The first lead screw 4 drives the glue tank 3 to move down, moving the glue tank 3 to an appropriate height. Open the sealing cover 23 and drain the glue in the glue tank 3 through the glue outlet pipe 22. Then, the inside of the glue tank 3 can be cleaned and maintained.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to this process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0044] Although embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A glue - coating mechanism for the production of a protective film, comprising a bracket (1), characterized in that: Four columns (2) are fixedly connected to the upper surface of the bracket (1). A glue trough (3) is slidably connected to the outer circumferential surfaces of the four columns (2). Two first lead screws (4) are rotatably connected inside the bracket (1). The outer circumferential surface of the first lead screw (4) is threadedly connected to the inside of the glue trough (3). A worm gear (6) is fixedly sleeved on the outer circumferential surface of each first lead screw (4). A worm (8) is rotatably inserted into the inside of the bracket (1). A first motor (7) is provided on the left side of the worm (8). The worm gear (6) is in transmission connection with the worm (8). An upper glue roller (9) is rotatably connected inside the bracket (1). A glue spreading roller (11) is rotatably connected inside the bracket (1). Two movable plates (15) are slidably connected to the inner wall of the glue trough (3). The movable plates (15) are in contact with the outer circumferential surface of the upper glue roller (9) through arc-shaped grooves formed inside.

2. The glue - applying mechanism for producing a protective film according to claim 1, wherein: A first collar (5) is fixedly sleeved on the outer circumferential surface of each first lead screw (4). The outer circumferential surface of the first collar (5) is rotatably connected to the inside of the bracket (1).

3. The glue coating mechanism for producing a protective film according to claim 1, characterized in that: A second motor (10) is provided on the left side of the upper glue roller (9). The upper glue roller (9) extends into the inside of the glue trough (3). A connecting belt (12) is in transmission connection between the upper glue roller (9) and the glue spreading roller (11).

4. The glue coating mechanism for producing a protective film according to claim 1, wherein: Two second collars (13) are fixedly sleeved on the outer circumferential surface of the upper glue roller (9). The outer circumferential surfaces of the second collars (13) are rotatably connected to the inside of the bracket (1). Two third collars (14) are fixedly sleeved on the outer circumferential surface of the glue spreading roller (11). The outer circumferential surfaces of the third collars (14) are rotatably connected to the inside of the bracket (1).

5. The gluing mechanism for producing a protective film according to claim 1, characterized in that: A second lead screw (16) is rotatably connected to the inside of the glue trough (3). Two threaded tubes (18) are threadedly connected to the outer circumferential surface of the second lead screw (16). A connecting plate (19) is fixedly connected to the outer circumferential surface of each threaded tube (18). The other ends of the connecting plates (19) far from the threaded tubes (18) are respectively fixedly connected to the upper surfaces of the movable plates (15).

6. The glue coating mechanism for producing a protective film according to claim 5, characterized in that: Two fourth collars (17) are fixedly sleeved on the outer circumferential surface of the second lead screw (16). The outer circumferential surfaces of the fourth collars (17) are rotatably connected to the inside of the glue trough (3).

7. The gluing mechanism for producing a protective film according to claim 5, characterized in that: A sleeve (20) is fixedly connected to the outer surface of each connecting plate (19). A cross bar (21) is fixedly connected to the front of the glue trough (3). The inner wall of the sleeve (20) is slidably sleeved on the outer circumferential surface of the cross bar (21).

8. The glue coating mechanism for producing a protective film according to claim 1, characterized in that: A glue outlet pipe (22) is provided at the bottom of the glue trough (3). A sealing cover (23) is threadedly sleeved on the outer circumferential surface of the glue outlet pipe (22).

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