A double-sided coating device for PE film

Abstract

The utility model provides a kind of PE film double-sided coating device, belong to coating device field, including base, the top of base is fixedly connected with a group of side frame, the outer lateral wall of side frame is fixedly connected with ink tank, the lateral wall of side frame is rotatably connected with output shaft, output shaft is connected with external driving assembly, the inside of side frame is provided with double-sided coating component, double-sided coating component includes the first auxiliary rod, second auxiliary rod, first roller, second extrusion shaft, film winding shaft and ink storage box rotatably connected in the inner lateral wall of side frame, the outside of first extrusion shaft and second extrusion shaft is fixedly connected with ink storage box, film material is wound on film winding shaft, the inside of side frame is provided with two groups of ink injection component, slit is provided between first extrusion shaft and ink storage box, the utility model, when output shaft rotation drives film material winding, when film material passes through first extrusion shaft and first roller and second extrusion shaft and second roller, two sides are coated, complete the double-sided coating work of film material.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment, and more specifically, to a double-sided coating device for PE film. Background Technology

[0002] A PE film coating device is a specialized piece of equipment used to uniformly coat a functional coating onto the surface of a polyethylene (PE) film. It typically consists of an unwinding unit, a coating head, a curing channel, and a rewinding sheet. This type of PE film coating device is usually designed as a single-sided coating structure and cannot directly achieve double-sided coating.

[0003] How to design a PE film double-sided coating device to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a PE film double-sided coating device, which aims to improve the problems mentioned in the background.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a PE film double-sided coating device, including a base, a set of side frames fixedly connected to the top of the base, an ink tank fixedly connected to the outer side wall of the side frames, an output shaft rotatably connected to the side wall of the side frames, the output shaft being connected to an external drive assembly, a double-sided coating assembly provided on the inner side of the side frames, the double-sided coating assembly including a first auxiliary rod, a second auxiliary rod, a first roller, a second extrusion shaft, a film winding shaft, and an ink storage box rotatably connected to the inner side wall of the side frames, the first extrusion shaft and the second extrusion shaft fixedly connected to the inner side wall of the side frames, the first extrusion shaft and the first roller being disposed above the second extrusion shaft and the second roller, an ink storage box being fixedly connected to the outside of both the first extrusion shaft and the second extrusion shaft, film material being wound on the film winding shaft, two sets of ink injection assemblies provided on the inner side of the side frames, and a slit being provided between the first extrusion shaft and the ink storage box.

[0007] Preferably, ultraviolet lamps are provided between the first extrusion shaft and the first auxiliary rod, the film winding shaft and the second extrusion shaft.

[0008] Preferably, a connecting shaft is fixedly connected to the end of the output shaft, and the output shaft is connected to the film winding shaft via belt drive.

[0009] Preferably, the ink injection assembly includes a cam fixedly sleeved on a connecting shaft, a fixing block fixedly connected to the inner wall of the side frame, a push rod slidably connected to the fixing block, a reciprocating ring fixedly connected to the bottom end of the push rod, the reciprocating ring being elliptical in shape, a piston fixedly connected to the top of the push rod, a main sleeve fixedly connected to the inner wall of the side frame, and the piston slidably disposed on the inner wall of the main sleeve.

[0010] Preferably, an auxiliary sleeve is fixedly connected to the main sleeve, and both the auxiliary sleeve and the inner wall of the main sleeve are provided with sealing components. The sealing components include an intercepting seat, a fixing seat, a spring, and a blocking ball.

[0011] Preferably, the spring and the blocking ball are disposed between the intercepting seat and the fixed seat. The intercepting seat and the fixed seat are fixedly connected to the inner sidewall of the corresponding main sleeve and auxiliary sleeve. One end of the spring is fixedly connected to the fixed seat and the other end is fixedly connected to the blocking ball. Both the intercepting seat and the fixed seat are provided with a central hole, and the blocking ball is configured to block the central hole of the intercepting seat.

[0012] Preferably, the end of the auxiliary sleeve is connected to the inside of the ink tank via a pipe, and the top of the main sleeve is connected to the inside of one of the ink storage boxes via a connecting pipe.

[0013] The beneficial effects of this utility model are: the output shaft rotates to drive the film material to be wound up. When the film material passes between the first extrusion shaft and the first roller, one side of the film material is coated. When it passes between the second extrusion shaft and the second roller, the other side is coated, thus completing the double-sided coating of the film material. The output shaft also drives the connecting shaft to rotate, which in turn drives the two sets of ink injection components to add ultraviolet-cured ink into the corresponding ink storage boxes, thus replenishing the ink consumed during coating. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a PE film double-sided coating device provided by an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the double-sided coating component structure of a PE film double-sided coating device provided in this embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the slit position of a PE film double-sided coating device provided by an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the ink injection component structure of a PE film double-sided coating device provided by an embodiment of this utility model;

[0019] Figure 5 yes Figure 4Enlarged view of point A in the middle.

[0020] In the diagram: 1. Base; 2. Side frame; 3. Ink tank; 4. Output shaft; 5. First auxiliary rod; 6. Second auxiliary rod; 7. First extrusion shaft; 8. First roller; 9. Second extrusion shaft; 10. Second roller; 11. Film winding shaft; 12. Ink storage box; 13. Slit; 14. Cam; 15. Fixing block; 16. Push rod; 17. Reciprocating ring; 18. Piston; 19. Main sleeve; 20. Auxiliary sleeve; 21. Interceptor seat; 22. Fixing seat; 23. Spring; 24. Blocking ball; 25. Film material; 26. Connecting shaft; 27. Ultraviolet lamp. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example, refer to Figures 1-5 A double-sided coating device for PE film includes a base 1. A set of side frames 2 are fixedly connected to the top of the base 1. An ink tank 3 is fixedly connected to the outer side wall of the side frames 2. An output shaft 4 is rotatably connected to the side wall of the side frames 2 and is connected to an external drive assembly. A double-sided coating assembly is provided on the inner side of the side frames 2. The double-sided coating assembly includes a first auxiliary rod 5, a second auxiliary rod 6, a first roller 8, a second extrusion shaft 9, a film roll 11, and an ink storage box 12, which are rotatably connected to the inner side wall of the side frames 2. A first extrusion shaft 7 and a second extrusion shaft 9 are fixedly connected to the inner side wall of the side frames 2. An extrusion shaft 7 and a first roller 8 are positioned above a second extrusion shaft 9 and a second roller 10. An ink storage box 12 is fixedly connected to the outside of both the first extrusion shaft 7 and the second extrusion shaft 9. A film material 25 is wound on the film roll 11. Two sets of ink injection assemblies are arranged on the inner side of the side frame 2. A slit 13 is provided between the first extrusion shaft 7 and the ink storage box 12. Ultraviolet lamps 27 are provided between the first extrusion shaft 7 and the first auxiliary rod 5, the film roll 11 and the second extrusion shaft 9. A connecting shaft 26 is fixedly connected to the end of the output shaft 4. The output shaft 4 and the film roll 11 are connected by a belt drive.

[0023] The ink injection assembly includes a cam 14 fixedly sleeved on a connecting shaft 26. A fixing block 15 is fixedly connected to the inner wall of the side frame 2. A push rod 16 is slidably connected to the fixing block 15. A reciprocating ring 17 is fixedly connected to the bottom end of the push rod 16. The reciprocating ring 17 is elliptical in shape. A piston 18 is fixedly connected to the top of the push rod 16. A main sleeve 19 is fixedly connected to the inner wall of the side frame 2. The piston 18 is slidably disposed on the inner wall of the main sleeve 19. An auxiliary sleeve 20 is fixedly connected to the main sleeve 19. Sealing assemblies are provided on the inner walls of both the auxiliary sleeve 20 and the main sleeve 19. The sealing assemblies include an intercepting seat 21 and a fixing... The components include a seat 22, a spring 23, and a ball stopper 24. The spring 23 and the ball stopper 24 are positioned between the intercepting seat 21 and the fixed seat 22. The intercepting seat 21 and the fixed seat 22 are fixedly connected to the inner walls of the corresponding main sleeve 19 and auxiliary sleeve 20. One end of the spring 23 is fixedly connected to the fixed seat 22, and the other end is fixedly connected to the ball stopper 24. Both the intercepting seat 21 and the fixed seat 22 are provided with a central hole. The ball stopper 24 is used to block the central hole of the intercepting seat 21. The end of the auxiliary sleeve 20 is connected to the inside of the ink tank 3 through a pipe. The top end of the main sleeve 19 is connected to the inside of one of the ink storage boxes 12 through a connecting pipe.

[0024] The working principle of this PE film double-sided coating device is as follows: An external drive component drives the output shaft 4 to rotate, and the output shaft 4 drives the film winding shaft 11 to rotate via a belt. The film material 25 is wound around the film winding shaft 11. The ultraviolet curable ink in the ink storage box 12 adheres to the upward-facing side of the film material 25 under the action of gravity through the slit 13. Driven by the film winding shaft 11, the ultraviolet curable ink on the film material 25 is squeezed and coated on one side of the film material 25 by the cooperation of the first extrusion shaft 7 and the first roller 8. The coated ultraviolet curable ink is cured under the irradiation of the ultraviolet lamp 27. After passing through the first auxiliary rod 5 and the second auxiliary rod 6, the original downward-facing side of the film material 25 is changed to the upward-facing side. After passing between the second extrusion shaft 9 and the second roller 10, the ultraviolet curable ink is coated on the other side of the film material 25. After passing through another ultraviolet lamp 27, it is wound onto the film winding shaft 11.

[0025] When the output shaft 4 rotates, it also drives the connecting shaft 26 to rotate, causing the protruding part of the cam 14 to move in a circular motion, which in turn drives the elliptical reciprocating ring 17 to move up and down, causing the push rod 16 to move back and forth. When the push rod 16 moves downward, it drives the piston 18 to move downward, creating a negative pressure inside the main sleeve 19. Under the action of the negative pressure, the blocking ball 24 inside the main sleeve 19 moves downward, continuously blocking the center of the intercepting seat 21 it contacts. Inside the auxiliary sleeve 20, the blocking ball 24 compresses the spring 23, thereby releasing the blockage of the intercepting seat 21. Under the action of the negative pressure, the ultraviolet curing ink in the ink tank 3 enters the main sleeve 19 through the auxiliary sleeve 20. When the piston 18 moves upward, it pushes the ultraviolet curing ink upward, passing through the top of the main sleeve 19 and entering the corresponding ink storage box 12 to add consumed ultraviolet curing ink.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A PE film double-sided coating device, comprising a base (1), characterized in that, A set of side frames (2) is fixedly connected to the top of the base (1). An ink tank (3) is fixedly connected to the outer side wall of the side frame (2). An output shaft (4) is rotatably connected to the side wall of the side frame (2). The output shaft (4) is connected to an external drive assembly. A double-sided coating assembly is provided on the inner side of the side frame (2). The double-sided coating assembly includes a first auxiliary rod (5), a second auxiliary rod (6), a first roller (8), a second extrusion shaft (9), a film roll shaft (11), and an ink storage box (12) rotatably connected to the inner side wall of the side frame (2). The inner wall of the side frame (2) is fixedly connected to a first extrusion shaft (7) and a second extrusion shaft (9). The first extrusion shaft (7) and the first roller (8) are located above the second extrusion shaft (9) and the second roller (10). The outer sides of the first extrusion shaft (7) and the second extrusion shaft (9) are fixedly connected to ink storage boxes (12). A film material (25) is wound on the film roll (11). Two sets of ink injection assemblies are provided on the inner side of the side frame (2). A slit (13) is provided between the first extrusion shaft (7) and the ink storage box (12).

2. The PE film double-sided coating device according to claim 1, characterized in that, An ultraviolet lamp (27) is provided between the first extrusion shaft (7) and the first auxiliary rod (5), the film winding shaft (11) and the second extrusion shaft (9).

3. The PE film double-sided coating device according to claim 1, characterized in that, The output shaft (4) is fixedly connected to a connecting shaft (26) at its end, and the output shaft (4) is connected to the film winding shaft (11) via belt drive.

4. The PE film double-sided coating device according to claim 1, characterized in that, The ink injection assembly includes a cam (14) fixedly sleeved on the connecting shaft (26), a fixing block (15) fixedly connected to the inner wall of the side frame (2), a push rod (16) slidably connected to the fixing block (15), a reciprocating ring (17) fixedly connected to the bottom end of the push rod (16), the reciprocating ring (17) being elliptical in shape, a piston (18) fixedly connected to the top of the push rod (16), a main sleeve (19) fixedly connected to the inner wall of the side frame (2), and the piston (18) slidably disposed on the inner wall of the main sleeve (19).

5. The PE film double-sided coating apparatus according to claim 4, characterized in that, An auxiliary sleeve (20) is fixedly connected to the main sleeve (19). Both the auxiliary sleeve (20) and the inner wall of the main sleeve (19) are provided with sealing components. The sealing components include an intercepting seat (21), a fixing seat (22), a spring (23), and a blocking ball (24).

6. The PE film double-sided coating apparatus according to claim 5, characterized in that, The spring (23) and the blocking ball (24) are disposed between the intercepting seat (21) and the fixed seat (22). The intercepting seat (21) and the fixed seat (22) are fixedly connected to the inner side wall of the corresponding main sleeve (19) and auxiliary sleeve (20). One end of the spring (23) is fixedly connected to the fixed seat (22), and the other end is fixedly connected to the blocking ball (24). Both the intercepting seat (21) and the fixed seat (22) are provided with a central hole. The blocking ball (24) is used to block the central hole of the intercepting seat (21).

7. A PE film double-sided coating apparatus according to claim 6, characterized in that, The end of the auxiliary sleeve (20) is connected to the inside of the ink box (3) through a pipe, and the top of the main sleeve (19) is connected to the inside of one of the ink storage boxes (12) through a connecting pipe.

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