Processing device for peep-proof display film

Abstract

The utility model discloses a peep-proof display film processing device which comprises a lower frame, an upper frame is arranged on the right side of the top of the lower frame, a first unwinding roller, a first roller, a first pressing assembly, a middle winding roller, a third roller and a second roller are arranged on the lower frame from left to right, and a second pressing assembly is arranged on the inner side wall of the upper frame. According to the device, the gap between the first roller and the first rubber sleeve and the gap between the second rubber sleeve and the second roller are flexibly adjustable, so that the release film and the black colloid film are successfully attached to the base material, and the thickness is flexibly controlled; according to the peep-proof display film pressing device, pressing of a semi-cured black colloid film, a base material and a white glue structure film is successfully achieved, the extrusion force is flexibly controlled, meanwhile, a release film is automatically stripped through rotation of the middle winding roller, the structure arrangement is simple, operation is convenient and fast, and the production efficiency of a peep-proof display film is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of privacy film processing equipment, specifically to a privacy display film processing device. Background Technology

[0002] Privacy screen protectors have a wide range of applications, including personal electronic devices such as computers and mobile phones. As consumers place increasing importance on personal privacy, the market for privacy screens is gradually expanding.

[0003] Currently, referring to the existing technology, Chinese patent publication number 202411591028.7 discloses a method for manufacturing a privacy screen protector as follows: Step 1: First, the substrate, release film, and black colloid film need to be bonded together and the overall thickness controlled. Then, UV light is used to irradiate the black colloid film to make it semi-cured. Step 2: The release film is peeled off, and a white adhesive structural film is pressed onto the black colloid film with a certain pressure, so that the semi-cured black colloid film is squeezed into the gaps of the white adhesive structural film. Finally, UV light is used to irradiate the black colloid film to cure and form the finished privacy screen protector.

[0004] However, in the existing process, bonding the substrate, release film, and black adhesive film is generally done using a patch machine, while removing the release film is usually done manually. As for pressing the white adhesive structural film onto the black adhesive film and applying a certain pressure, it is done manually by flattening the semi-cured black adhesive film after removing the release film with the substrate, and then using a patch machine to bond and control the pressure. This makes the operation process too cumbersome, and there is no unified equipment to complete the production of the above privacy display film, resulting in low production efficiency. Therefore, a privacy display film processing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a privacy display film processing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a privacy display film processing device, comprising a lower frame, an upper frame disposed on the top right side of the lower frame, a first unwinding roller, a first roller, a first pressing assembly, a middle winding roller, a third roller, and a second roller disposed on the lower frame from left to right, a second pressing assembly disposed on the inner side wall of the upper frame, the second pressing assembly being disposed above the second roller, and mounting plates disposed on the right side ends of both the lower frame and the upper frame, a tail unwinding roller being rotatably connected to the upper mounting plate, and a tail winding roller being rotatably connected to the lower mounting plate;

[0007] The first pressing assembly includes a first rubber sleeve, a first inner cylinder, a first end shaft, a transverse threaded shaft, and a first rotating nut;

[0008] The second pressing assembly includes a second rubber sleeve, a third end shaft, a vertical threaded shaft, a second rotating nut, and a second inner cylinder;

[0009] The first roller, the third roller, and the second roller are all rotatably connected to the lower frame.

[0010] Preferably, the lower frame has a transverse sliding opening and an adjustment opening on its side, and an inner through opening is provided on the lower frame between the transverse sliding opening and the adjustment opening. A first limiting block is provided in the adjustment opening. The first end shaft slides within the transverse sliding opening. The transverse threaded shaft passes through the inner through opening. The first rotating nut is threadedly connected to the transverse threaded shaft and is located between the inner wall of the adjustment opening and the first limiting block. Rotating the first rotating nut controls the first end shaft to slide within the transverse sliding opening to adjust the distance between the first rubber sleeve and the first roller.

[0011] Preferably, the upper frame has a vertical sliding opening on its side, and a folding plate is provided on the top surface of the upper frame above the vertical sliding opening. The third end shaft slides within the vertical sliding opening, and the vertical thread extends upward to the top surface of the upper frame. The second rotating nut is threadedly connected to the vertical thread shaft and is located between the folding plate and the top surface of the upper frame. Rotating the second rotating nut controls the third end shaft to slide within the vertical sliding opening to adjust the distance between the second rubber sleeve and the second roller.

[0012] Preferably, the take-up roller has a second end shaft on both sides, the second end shaft is rotatably connected to the lower frame by a convex locking block, a second sprocket is sleeved on the second end shaft, and a first sprocket is sleeved on the end of the unwinding roller, the first sprocket and the second sprocket are connected by a chain.

[0013] Preferably, a UV lamp is provided on the inner bottom surface of the lower frame, located below the first rubber sleeve.

[0014] Preferably, the side of the lower frame has a placement opening below the horizontal sliding opening, through which the UV lamp slides into the interior of the lower frame.

[0015] Preferably, the second end shaft is fitted with a central rotating handle, and the end of the tail take-up roller is fitted with a tail rotating handle.

[0016] Preferably, scales are provided on both the lower frame located next to the horizontal sliding opening and the upper frame located next to the vertical sliding opening, for controlling the distance the first end shaft slides in the horizontal sliding opening and the distance the third end shaft slides in the vertical sliding opening.

[0017] Preferably, the lower frame is U-shaped, and three first unwinding rollers are provided.

[0018] Preferably, the upper frame is configured as an inverted U-shape, and the folding plate is configured as an inverted L-shape.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This device, through the arrangement of the first pressing component and the second pressing component, utilizes the flexible and adjustable gaps between the first roller and the first rubber sleeve, and between the second rubber sleeve and the second roller, to successfully achieve the bonding and flexible thickness control of the release film, black colloid film and the substrate, and to successfully achieve the pressing and flexible control of the extrusion force of the semi-cured black colloid film, the substrate and the white adhesive structural film. At the same time, the rotation of the intermediate take-up roller is used to automatically peel off the release film, which greatly improves production efficiency. The structure is simple and the operation is convenient. Attached Figure Description

[0020] Figure 1 This is an overall structural view of the present invention;

[0021] Figure 2 This is a structural view of the pressing assembly in this utility model;

[0022] Figure 3 This is a structural view of the lower frame and the upper frame in this utility model;

[0023] Figure 4 This is a cross-sectional view of the present invention.

[0024] In the diagram: 1. Lower frame; 11. Upper frame; 12. Placement opening; 13. Inner through opening; 14. Lateral sliding opening; 15. Adjustment opening; 16. First limiting block; 17. Convex locking block; 18. Vertical sliding opening; 19. Folding plate; 110. Mounting plate; 111. Scale; 2. First unwinding roller; 3. First roller; 4. First rubber sleeve; 41. First inner cylinder; 42. First end shaft; 43. Lateral threaded shaft; 44. 5. First rotating nut; 6. Tail unwinding roller; 7. First sprocket; 8. Chain; 9. Tail take-up roller; 10. Tail rotating handle; 11. Middle take-up roller; 12. Second end shaft; 13. Middle rotating handle; 14. Second sprocket; 15. Second rubber sleeve; 16. Third end shaft; 17. Vertical threaded shaft; 18. Second rotating nut; 19. Second inner cylinder; 20. Second roller; 21. Third roller; 22. UV lamp. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1-4 As shown, this utility model provides a technical solution for a privacy screen film processing device:

[0027] Reference Figure 1 As shown, a privacy screen protector processing device includes a lower frame 1, an upper frame 11 is provided on the top right side of the lower frame 1, and from left to right on the lower frame 1 are respectively provided a first unwinding roller 2, a first roller 3, a first pressing assembly, a middle take-up roller 7, a third roller 91, and a second roller 9. The inner side wall of the upper frame 11 is provided with a second pressing assembly, which is located above the second roller 9. Mounting plates 110 are provided on the right side ends of both the lower frame 1 and the upper frame 11. A tail unwinding roller 5 is rotatably connected to the upper mounting plate 110, and a tail take-up roller 6 is rotatably connected to the lower mounting plate 110.

[0028] Reference Figure 2 and Figure 4 As shown, the first pressing assembly includes a first rubber sleeve 4, a first inner cylinder 41, a first end shaft 42, a transverse threaded shaft 43, and a first rotating nut 44. The second pressing assembly includes a second rubber sleeve 8, a third end shaft 81, a vertical threaded shaft 82, a second rotating nut 83, and a second inner cylinder 84. The first roller 3, the third roller 91, and the second roller 9 are all rotatably connected to the lower frame 1.

[0029] It should be noted that the first rubber sleeve 4 is fitted onto the first inner cylinder 41, and there are two first end shafts 42, located at both ends of the first inner cylinder 41 respectively. The second rubber sleeve 8 is fitted onto the second inner cylinder 84, and there are two third end shafts 81, located at both ends of the second inner cylinder 84 respectively.

[0030] This device, through the combination of a first pressing component and a second pressing component, utilizes the flexible and adjustable gaps between the first roller 3 and the first rubber sleeve 4, and between the second rubber sleeve 8 and the second roller 9, to successfully achieve the bonding and flexible thickness control of the release film, black colloid film, and substrate. It also successfully achieves the pressing and flexible control of the extrusion force of the semi-cured black colloid film, substrate, and white adhesive structural film. At the same time, the rotation of the intermediate take-up roller 7 automatically peels off the release film, greatly improving production efficiency. The structure is simple and the operation is convenient.

[0031] Reference Figure 3As shown, it should be noted that the lower frame 1 has a transverse sliding opening 14 and an adjustment opening 15 on its side. An inner through opening 13 is provided on the lower frame 1 between the transverse sliding opening 14 and the adjustment opening 15. A first limiting block 16 is provided in the adjustment opening 15. The first end shaft 42 slides in the transverse sliding opening 14. The transverse threaded shaft 43 passes through the inner through opening 13. The first rotating nut 44 is threadedly connected to the transverse threaded shaft 43 and is located between the inner side wall of the adjustment opening 15 and the first limiting block 16. Rotating the first rotating nut 44 controls the first end shaft 42 to slide in the transverse sliding opening 14 to adjust the distance between the first rubber sleeve 4 and the first roller 3.

[0032] Reference Figure 3 As shown, it should be noted that a vertical sliding opening 18 is provided on the side of the upper frame 11, and a folding plate 19 is provided on the top surface of the upper frame 11 above the vertical sliding opening 18. The third end shaft 81 slides within the vertical sliding opening 18, and the vertical threaded shaft 82 extends upward to the top surface of the upper frame 11. The second rotating nut 83 is threadedly connected to the vertical threaded shaft 82 and is located between the folding plate 19 and the top surface of the upper frame 11. Rotating the second rotating nut 83 controls the third end shaft 81 to slide within the vertical sliding opening 18 to adjust the distance between the second rubber sleeve 8 and the second roller 9.

[0033] Reference Figure 1 As shown, in an optional embodiment: a second end shaft 71 is provided at both ends of the take-up roller 7. The second end shaft 71 is rotatably connected to the lower frame 1 by a convex locking block 17. A second sprocket 73 is sleeved on the second end shaft 71. A first sprocket 51 is sleeved at the end of the tail unwinding roller 5. The first sprocket 51 and the second sprocket 73 are connected by a chain 52.

[0034] Reference Figure 1 and Figure 4 As shown, in an optional embodiment: a UV lamp 92 is provided on the inner bottom surface of the lower frame 1 below the first rubber sleeve 4, as shown in the figure. Figure 2 and Figure 3 As shown, in an optional embodiment: a placement opening 12 is provided on the side of the lower frame 1 below the horizontal sliding opening 14, and the UV lamp 92 slides into the interior of the lower frame 1 through the placement opening 12.

[0035] Reference Figure 1 As shown, in an optional embodiment: a middle rotating handle 72 is sleeved on the second end shaft 71, and a tail rotating handle 61 is sleeved on the end of the tail take-up roller 6.

[0036] Reference Figure 1As shown, in an optional embodiment, scales 111 are provided on both the lower frame 1 next to the horizontal sliding opening 14 and the upper frame 11 next to the vertical sliding opening 18, for controlling the distance the first end shaft 42 slides in the horizontal sliding opening 14 and the distance the third end shaft 81 slides in the vertical sliding opening 18.

[0037] In an optional embodiment: the lower frame 1 is configured as a U-shape, three first release rollers 2 are provided, the upper frame 11 is configured as an inverted U-shape, and the folding plate 19 is configured as an inverted L-shape.

[0038] The working principle of this device will now be explained through its operation process: When using this device, the manufacturing method of the privacy screen film it is designed for is briefly explained as follows: Step 1: First, the substrate, release film, and black colloid film need to be bonded together and the overall thickness controlled. Then, UV light is used to irradiate the black colloid film to make it semi-cured. Step 2: The release film is peeled off, and the white adhesive structural film is pressed onto the black colloid film with a certain pressure. This forces the semi-cured black colloid film into the gaps of the white adhesive structural film. Finally, UV light is used to irradiate the black colloid film to cure it and obtain the finished privacy screen film.

[0039] This device is designed specifically for the aforementioned method of manufacturing privacy screen protectors, greatly improving the manufacturing efficiency of privacy screen protectors. The specific operation process is as follows:

[0040] Reference Figure 4As shown, the three first-release rollers 2 are arranged such that, from top to bottom, release film, black adhesive film, and substrate are wound respectively. All three first-release rollers 2 can rotate, thereby conveying the release film, black adhesive film, and substrate onto the first roller 3. They are then compressed and bonded through the gap between the first roller 3 and the first rubber sleeve 4. During this process, the operator can rotate the first rotating nut 44. Because the first rotating nut 44 is threadedly connected to the transverse threaded shaft 43 and is limited by the first limiting block 16, the first end shaft 42 slides within the transverse sliding opening 14, thereby adjusting the first... The distance between the rubber sleeve 4 and the first roller 3 is used to adjust the thickness of the release film, black colloid film, and substrate after lamination. After lamination, when the release film passes under the first rubber sleeve 4, it undergoes semi-curing treatment by UV lamp 92. When it reaches the second roller 9, the release film passes the third roller 91 and then reaches the take-up roller 7, completing the peeling of the release film. It should be noted that the third roller 91 can rotate on the lower frame 1, which facilitates the release film's detachment. Its proximity to the second roller 9 delays the peeling time of the release film, allowing time for UV lamp 92 irradiation. The white adhesive structural film is wound on the roller 5. After winding to the second rubber sleeve 8, it passes through the gap between the second rubber sleeve 8 and the second roller 9. The semi-cured black adhesive film, which has separated from the release film, is then extruded together with the substrate and wound into the tail take-up roller 6. After the entire assembly is irradiated with a UV lamp, the finished privacy display film is obtained. The size of the gap between the second rubber sleeve 8 and the second roller 9 is adjustable. That is, this device adjusts the extrusion pressure on the white adhesive structural film, the semi-cured black adhesive film, and the substrate by adjusting the size of the gap between the second rubber sleeve 8 and the second roller 9. During operation, only the second roller needs to be rotated. Nut 83, because the second rotating nut 83 is threadedly connected to the vertical threaded shaft 82, and the second rotating nut 83 is limited by the folding plate 19, allows the third end shaft 81 to slide within the vertical sliding port 18, thereby adjusting the gap between the second rubber sleeve 8 and the second roller 9. The operation is convenient, and the position of the third end shaft 81 on both sides of the upper frame 11 can be compared by the scale 111 to prevent the second rubber sleeve 8 from tilting. Similarly, the scale 111 at the horizontal sliding port 14 is also set to prevent the first rubber sleeve 4 from tilting, which would make the distance between the first rubber sleeve 4 and the first roller 3 uneven and affect the working condition.

[0041] Reference Figure 1 and Figure 4As shown, when operating this device, only the tail rotation handle 61 needs to be turned to drive the tail take-up roller 6 to start rotating on the mounting plate 110 to promote the movement of the release film, black adhesive film, substrate and white adhesive structural film. At the same time, the middle rotation handle 72 is turned to start the second end shaft 71 to start rotating, which in turn drives the middle take-up roller 7 and the second sprocket 73 to start rotating. Through the transmission of the chain 52, the first sprocket 51 and the tail unwind roller 5 start rotating. The middle take-up roller 7 starts to wind up the release film and the tail unwind roller 5 starts to unwind the white adhesive structural film, avoiding the breakage of the white adhesive structural film and promoting more stable operation of this device.

[0042] 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 privacy display film processing apparatus comprising a lower frame (1), characterized in that: The top right side of the lower frame (1) is provided with an upper frame (11), the lower frame (1) is provided with a first unwinding roller (2), a first roller (3), a first pressing assembly, a middle winding roller (7), a third roller (91) and a second roller (9) from left to right, respectively, the inner side wall of the upper frame (11) is provided with a second pressing assembly, the second pressing assembly is arranged above the second roller (9), the right end of the lower frame (1) and the upper frame (11) is provided with a mounting plate (110), the upper mounting plate (110) is rotatably connected with a tail unwinding roller (5), and the lower mounting plate (110) is rotatably connected with a tail winding roller (6). The first pressing assembly comprises a first rubber sleeve (4), a first inner cylinder (41), a first end shaft (42), a transverse threaded shaft (43) and a first rotating nut (44). The second pressing assembly comprises a second rubber sleeve (8), a third end shaft (81), a vertical threaded shaft (82), a second rotating nut (83) and a second inner cylinder (84). The first roller (3), the third roller (91) and the second roller (9) are rotatably connected to the lower frame (1).

2. The kind of privacy display film processing device according to claim 1, characterized in that: The side of the lower frame (1) is provided with a transverse sliding opening (14) and an adjusting opening (15), an inner through opening (13) is formed between the transverse sliding opening (14) and the adjusting opening (15) on the lower frame (1), a first limiting block (16) is arranged in the adjusting opening (15), the first end shaft (42) slides in the transverse sliding opening (14), the transverse threaded shaft (43) penetrates the inner through opening (13), the first rotating nut (44) is threadedly connected with the transverse threaded shaft (43) and located between the inner side wall of the adjusting opening (15) and the first limiting block (16), and rotating the first rotating nut (44) controls the first end shaft (42) to slide in the transverse sliding opening (14) to adjust the distance between the first rubber sleeve (4) and the first roller (3).

3. The kind of privacy display film processing device according to claim 2, characterized in that: The side of the upper frame (11) is provided with a vertical sliding opening (18), the top surface of the upper frame (11) is provided with a folding plate (19) above the vertical sliding opening (18), the third end shaft (81) slides in the vertical sliding opening (18), the vertical threaded shaft (82) penetrates upward to the top surface of the upper frame (11), the second rotating nut (83) is threadedly connected with the vertical threaded shaft (82) and located between the folding plate (19) and the top surface of the upper frame (11), and rotating the second rotating nut (83) controls the third end shaft (81) to slide in the vertical sliding opening (18) to adjust the distance between the second rubber sleeve (8) and the second roller (9).

4. The kind of privacy display film processing device according to claim 3, characterized in that: The two side ends of the middle winding roller (7) are provided with second end shafts (71), the second end shafts (71) are rotatably connected to the lower frame (1) by convex clamping blocks (17), the second end shafts (71) are sleeved with second sprockets (73), the end of the tail unwinding roller (5) is sleeved with a first sprocket (51), and the first sprocket (51) and the second sprocket (73) are connected through a chain (52).

5. The kind of privacy display film processing device according to claim 4, characterized in that: The inner bottom surface of the lower frame (1) is provided with a UV lamp (92) below the first rubber sleeve (4).

6. A kind of privacy display film processing device according to claim 5, wherein: The side surface of the lower frame (1) is provided with a placing opening (12) below the transverse sliding opening (14), and the UV lamp (92) is slid into the interior of the lower frame (1) through the placing opening (12).

7. A kind of privacy display film processing device according to claim 6, characterized by: The second end shaft (71) is sleeved with a middle rotating handle (72), and the tail winding roller (6) is sleeved with a tail rotating handle (61) at the end.

8. The kind of privacy display film processing device according to claim 7, characterized in that: The lower frame (1) is provided with a scale (111) beside the transverse sliding opening (14), and the upper frame (11) is provided with a scale (111) beside the vertical sliding opening (18), so as to control the sliding distance of the first end shaft (42) in the transverse sliding opening (14) and the sliding distance of the third end shaft (81) in the vertical sliding opening (18).

9. A kind of privacy display film processing device according to claim 8, wherein: The lower frame (1) is provided in a U shape, and the first winding roller (2) is provided with three.

10. The kind of privacy display film processing device according to claim 9, characterized in that: The upper frame (11) is provided in an inverted U shape, and the folding plate (19) is provided in an inverted L shape.

Images