Roller film pasting device applied to curved film

Abstract

The utility model relates to the technical field of film pasting devices, in particular to a roller film pasting device applied to a curved surface film, which assists the curved surface film to be pasted on a curved surface screen, and comprises a base, a positioning groove used for positioning the curved surface screen and a lifting beam positioned behind the positioning groove of the base are arranged on the base; the rolling wheel assembly is connected to the base in a sliding mode, and the rolling wheel assembly is used for sweeping and rolling the curved screen positioned by the positioning groove; the upper protection piece is fixed through the base and covers the upper portion of the positioning groove, and the rear end of the upper protection piece is borne on the lifting beam; the drawstring is arranged between the upper protection piece and the base, and the drawstring can penetrate out of the rear of the base along the position between the lifting beam and the base; according to the curved surface film pasting device, the effect of dust-free attachment between the curved surface tempered film and the curved surface screen can be achieved, the tempered film can be more orderly attached to the curved surface screen in a rolling operation mode of the roller assembly, and therefore rapid, high-precision and dust-free curved surface film pasting operation can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of film applicators, in particular to a roller film applicator for curved surface films. Background Art

[0002] At present, in the design of mobile phone curved screens, there are two types: curved screens and micro-curved screens. Curved screens have strong impact and a sense of technology, with a fashionable and beautiful appearance, and a smooth transition at the edges, providing a comfortable hand-held feeling. However, due to the large curvature of the curved screen, it is difficult to achieve a curved structure on all four sides of the screen. Therefore, generally, the curved surface is set on the two long sides of the screen. Such curved screens are not easy to find a perfectly fitting film, and the film application is difficult. When applying a tempered film, it is basically necessary to use UV glue for post-curing to achieve film application, and mis-touch may occur during operation; the micro-curved screen is an extension of the curved screen technology, retaining some of the advantages of the curved screen to a certain extent, such as a good appearance and feel. Compared with the curved screen, the mis-touch situation has been improved. Moreover, the micro-curved screen has a small curvature, enabling the design of a curved structure on all four sides of the screen, which helps to achieve a better screen-to-body ratio. And when applying a film to the micro-curved screen, it is simpler than the traditional curved screen. The tempered film can be directly attached to the screen through AB glue.

[0003] A film applicator is a tool specifically used to assist in film application. It can help people attach the film to various surfaces, such as mobile phone screens, tablet computers, and car glass, more safely and quickly. Using a film applicator can greatly shorten the film application time and avoid the generation of air bubbles and stains; due to the emergence of micro-curved screens, unlike traditional flat screens, even a slight deviation in the angle of the protective film will affect the film application effect. And due to the curved surface, the thickness of the curved screen protective film will increase, and there will be an incompatibility problem in terms of thickness for traditional flat screen film applicators. Therefore, it is necessary to design a film applicator that can achieve film application on micro-curved screens, so as to further improve the film application efficiency on curved screens. Summary of the Utility Model

[0004] The utility model aims to provide a technical solution to overcome the above deficiencies.

[0005] A roller film applicator for curved surface films, which assists in attaching a curved surface film to a curved screen, includes:

[0006] A base, on which a positioning groove for positioning the curved screen and a lifting beam located behind the positioning groove of the base are provided;

[0007] A roller assembly, which is slidably connected to the base and is used for sweeping and rolling the curved screen positioned in the positioning groove;

[0008] An upper protection plate is fixed by a base and covers the upper portion of the positioning slot, and a rear end of the upper protection plate is supported on the lifting beam;

[0009] The pull belt is arranged between the upper protection plate and the base, and the pull belt can pass through between the lifting beam and the base to the rear of the base.

[0010] Preferably, a first upper securing fixing structure is provided on the base at a position in front of the positioning slot, and a second upper securing fixing structure is provided on the lifting beam. The front and rear ends of the upper securing piece are both extended with fixing parts, and the upper securing piece is fixed above the positioning slot by the first upper securing fixing structure and the second upper securing fixing structure through the fixing parts at the front and rear ends.

[0011] Preferably, the first upper securing fixing structure includes a fixing hole provided on the base and a T-shaped column fixedly inserted into the positioning hole, and the fixing portion of the front end of the upper securing piece is pressed and fixed to the base by the T-shaped column, and the second upper securing fixing structure includes a fixing column provided on the lifting beam, and the fixing portion of the rear end of the upper securing piece is positioned and inserted into the fixing column;

[0012] A low-position groove is concave downwardly provided on the base at a position corresponding to the first upper fixing structure, and the T-shaped column is matched with the roller assembly through the low-position groove.

[0013] Preferably, an elastic lifting portion that can be pressed down by the roller assembly is provided on the base at a position between the first upper guard fixing structure and the positioning groove, and the elastic lifting portion is used to lift the front end of the upper guard.

[0014] Preferably, slide rails are respectively provided on both sides of the base, and the roller assembly includes a sliding body slidably connected to the slide rails, a pushing handle flip-connected to the sliding body, and a curved roller rotatably connected to the lower end of the sliding body. The curved roller sweeps and rolls the curved screen positioned in the positioning groove, and the inner diameter of the middle part of the curved roller is larger than the inner diameter of the two ends of the curved roller.

[0015] Preferably, the slide rail includes blocking walls formed on both sides of the base, a sliding groove opened on the inner side of the blocking wall, and a guide rail formed on the base and located on both sides of the positioning groove. A slider that docks with the sliding groove is formed on the sliding body, and the sliding body is also provided with a guide groove that docks with the guide rail.

[0016] Preferably, both the front end and the rear end of the base are provided with limiting walls extending laterally along the blocking wall, and the sliding stroke of the roller assembly is limited by the limiting walls.

[0017] Preferably, a roller placement position is provided on the base in front of the positioning groove so as to avoid the fixing portion of the upper protection plate, and the roller assembly can slide to the roller placement position.

[0018] Preferably, a hand buckle portion is provided at the rear end of the positioning slot.

[0019] Preferably, a support structure is formed in the positioning groove, and a CNC machining groove for positioning and placing the screen to be film-attached is provided on the support structure.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] By using the structural arrangement of the elevation beam to perform an inclined elevation operation on the curved surface film, it is possible to set the tension belt and the roller assembly on the basis of meeting the thickness of the curved surface tempered film, so that a dust-free attachment effect can be achieved between the curved surface tempered film and the curved surface screen, and the roller pressing operation mode of the roller assembly can be used to achieve more orderly attachment of the tempered film to the curved surface screen, thereby enabling a fast, high-precision and dust-free curved surface film laminating operation.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a schematic structural diagram of the present utility model after positioning the curved surface screen and the curved surface tempered film;

[0025] Figure 2 is a schematic structural diagram of the present utility model when operating the roller assembly for rolling and laminating the film;

[0026] Figure 3 is the present utility model Figure 2 a schematic structural diagram of part A in;

[0027] Figure 4 is the present utility model Figure 1 an exploded structural diagram of;

[0028] Figure 5 is a disassembled structural diagram of the present utility model;

[0029] Figure 6 is a schematic cross-sectional structural diagram of the present utility model in the state where the roller assembly and the base are cooperated;

[0030] Figure 7 is a schematic cross-sectional structural diagram of the present utility model in the state where the roller assembly and the base are separated;

[0031] Figure 8 is a schematic longitudinal sectional structure diagram of the present utility model; Figure 1 The longitudinal sectional structure schematic diagram of the present utility model;

[0032] Figure 9 is a schematic structure diagram at position B in the present utility model; Figure 8 The structure schematic diagram at position B in the present utility model;

[0033] Figure 10 is a schematic structure diagram of the base in the present utility model.

[0034] The reference numerals and names in the figure are as follows:

[0035] Base 10, positioning groove 11, elevation beam 12, first upper protection fixing structure 13, fixing hole 131, T-shaped column 132, second upper protection fixing structure 14, fixing column 141, low-position groove 15, elastic lifting part 16, slide rail 17, blocking wall 171, sliding groove 172, guiding track 173, limiting wall 174, hand-held part 18, support framework 19, roller assembly 20, sliding body 21, slider 211, guiding groove 212, pushing handle 22, curved surface roller 23, roller placement position 24, upper protection sheet 30, fixing part 31, positioning hole 32, pulling belt 40, curved surface screen 50, curved surface tempered glass film 60. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0037] Please refer to Figures 1 - 10 , in the embodiments of the present utility model, a roller film applicator for a curved film, generally applied to a curved surface tempered glass film 60, can also be a water condensation film. Taking the curved surface tempered glass film 60 as an example, the roller film applicator adopted in this technical solution is used to assist the curved surface tempered glass film 60 to be attached to the curved surface screen 50. The present utility model adopts the following implementation manners, including:

[0038] Base 10, on which a positioning groove 11 for positioning the curved surface screen 50 and an elevation beam 12 located behind the positioning groove 11 of the base 10 are provided;

[0039] Roller assembly 20, which is slidably connected to the base 10 and is used for horizontally rolling and pressing the curved surface screen 50 positioned by the positioning groove 11;

[0040] Upper protection piece 30, the upper protection piece 30 is fixed by the base 10 and covers above the positioning groove 11, and the rear end of the upper protection piece 30 is carried on the elevation beam 12;

[0041] Pulling belt 40, the pulling belt 40 is arranged between the upper protection piece 30 and the base 10, and the pulling belt 40 can pass through between the elevation beam 12 and the base 10 and extend to the rear of the base 10.

[0042] In the above technical solution, before leaving the factory, the curved tempered glass film 60 is attached to the lower end of the upper protection piece 30, and the release film on the curved tempered glass film 60 is connected to the pulling belt 40, so that the pulling belt 40 can reversely pull out the release film under the action of horizontal pulling;

[0043] By arranging a structure for fixing the upper protection piece 30 on the base 10, when in use, first position the curved screen 50 on the base 10 through the positioning groove 11, and then fix the upper protection piece 30 to the base 10 through the structure for fixing the upper protection piece 30, so that the curved tempered glass film 60 can be located directly above the positioning groove 11. By arranging the structure of the elevation beam 12, the rear end of the curved tempered glass film 60 can be lifted, so that the curved tempered glass film 60 can be inclined above the positioning groove 11. Through this setting method, the curved tempered glass film 60 can exhaust air orderly during the process of the roller assembly 20 rolling the curved tempered glass film 60. And by adopting the structural setting of the elevation beam 12, a gap can be formed between the rear end of the base 10 through the elevation beam 12 and the base 10. This gap can allow the pulling belt 40 to extend out, and ensure that the curved structure of the curved tempered glass film 60 will not interfere with the pulling belt 40, so that the release film can be smoothly torn off from the curved tempered glass film 60 during the process of pulling the pulling belt 40; Finally, the tempered glass film from which the release film has been torn off will be able to be orderly attached to the curved tempered glass film on the curved screen 50 along the front-to-rear direction of the curved screen 50 under the rolling action of the roller assembly 20, and through the rolling operation of the roller assembly 20, a pressing action can be performed on the curved tempered glass film 60, so as to ensure the close fit between the curved tempered glass film 60 and the curved screen 50 without generating bubbles.

[0044] Therefore, through the curved tempered glass film 60 set by the present utility model and by using the structural setting of the elevation beam 12, it is possible to set the pulling belt 40 and the roller assembly 20 on the basis of meeting the thickness of the curved tempered glass film 60, so that a dust-free attachment effect can be achieved between the curved tempered glass film 60 and the curved screen 50, and the roller assembly 20 can be used to roll and attach the tempered glass film to the curved screen 50 more orderly, so as to achieve a fast, high-precision and dust-free curved film laminating operation.

[0045] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 10In the embodiment of the present invention, a first upper securing fixing structure 13 is provided on the base 10 at a position in front of the positioning groove 11, a second upper securing fixing structure 14 is provided on the lifting beam 12, and fixing portions 31 are extended from the front and rear ends of the upper securing piece 30. The upper securing piece 30 is fixed above the positioning groove 11 by the first upper securing fixing structure 13 and the second upper securing fixing structure 14 through the fixing portions 31 at the front and rear ends. Specifically, the first upper securing fixing structure 13 includes a fixing hole 131 opened on the base 10 and a T-shaped column 132 fixedly inserted in the positioning hole 32. The fixing portion 31 at the front end of the upper securing plate 30 is pressed and fixed to the base 10 by the T-shaped column 132. The second upper securing fixing structure 14 includes a fixing column 141 provided on the lifting beam 12. The fixing portion 31 at the rear end of the upper securing plate 30 is positioned and inserted in the fixing column 141. When fixing the upper securing plate 30, the fixing portion 31 provided on the upper securing plate 30 is provided with positioning holes 32 corresponding to the first upper securing fixing structure 13 and the second upper securing fixing structure 14. The positioning holes 32 are used to align the T-shaped column 132 and the fixing column 141 so that the upper securing plate 30 is fixed. The fixing portion 31 at the front end of the upper protection sheet 30 can be pressed against the base 10 by the T-shaped column 132, and the fixing portion 31 at the rear end of the upper protection sheet 30 can be positioned and inserted on the fixing column 141, thereby achieving the operation of fixing the upper protection sheet 30. This structure is simple and easy to operate. The user can quickly and accurately fix the upper protection sheet 30 on the base 10, thereby positioning the curved tempered film 60 directly above the positioning groove 11; in addition, a low-position groove 15 is recessed downwardly at the position of the base 10 corresponding to the first upper protection fixing structure 13, and the T-shaped column 132 cooperates with the roller assembly 20 through the low-position groove 15, so that the roller assembly 20 will not be blocked when passing through the first upper protection fixing structure 13.

[0046] When positioning the curved tempered film 60, it is necessary to ensure that the curved tempered film 60 is higher than the curved screen 50, which can facilitate the operation of tearing the release film and ensure that the curved tempered film 60 will never adhere to the curved screen 50 when the roller assembly 20 does not perform the rolling operation. Also, it is necessary to ensure that the roller assembly 20 can roll the curved screen 50. Therefore, after the curved screen 50 is positioned, it needs to be higher than or flush with the upper end of the positioning groove 11. And due to the elevation of the elevation beam 12, the rear end of the curved tempered film 60 will not directly contact the curved screen 50. For the front end of the curved tempered film 60, because of the upper protection piece 30 on the base 10, if the rear end of the curved tempered film 60 cannot be elevated to a certain extent, there will be a risk that the front end of the curved tempered film 60 directly contacts the curved screen 50. In this regard, in the embodiment of the present utility model, an elastic lifting part 16 that can be pressed down by the roller assembly 20 is provided at a position between the first upper protection fixing structure 13 and the positioning groove 11 on the base 10. The elastic lifting part 16 is used to elevate the front end of the upper protection; that is, after the curved tempered film 60 is positioned, the front end of the upper protection piece 30 can be lifted by the elastic lifting part 16, so as to ensure that the front end of the curved tempered film 60 does not directly contact the curved screen 50. During the rolling process of the roller assembly 20, the rolling force of itself is used to first push the elastic lifting part 16 to be pressed down. Thus, even if the front end of the curved tempered film 60 is higher than the rolling surface of the roller assembly 20 after being positioned, the roller assembly 20 can smoothly roll onto the upper protection piece 30 directly above the curved tempered film 60 during the operation of the roller assembly 20, so as to successfully complete the rolling operation.

[0047] Please refer to Figures 1 - 10, in the embodiment of the present utility model, slide rails 17 are respectively arranged on both sides of the base 10. The roller assembly 20 includes a sliding body 21 slidably connected to the slide rail 17, a pushing handle 22 rotatably connected to the sliding body 21, and a curved surface roller 23 rotatably connected to the lower end of the sliding body 21. The curved surface roller 23 performs a sweeping rolling on the curved screen 50 positioned in the positioning groove 11. The inner diameter of the middle part of the curved surface roller 23 is larger than that of both ends of the curved surface roller 23. The setting of the curved surface roller 23 can apply a greater rolling pressure to the middle part of the curved tempered film 60 during the rolling process, so as to achieve the operation of exhausting air first in the middle between the curved tempered film 60 and the screen 50 to be pasted, further ensuring that no bubbles are generated during the pasting process; during operation, the pushing handle 22 can be flipped to a suitable position, so that the user can hold and push reasonably. When pushing, it is guided along the upper part directly above the positioning groove 11 through the cooperation of the sliding body 21 and the slide rail 17 to complete the operation of the curved surface roller 23 performing a sweeping rolling; in terms of the structure setting of the slide rail 17 and realizing its guiding stability, in the embodiment of the present utility model, the slide rail 17 includes a blocking wall 171 formed on both sides of the base 10, a sliding groove 172 opened on the inner side of the blocking wall 171, and a guiding track 173 formed on the base 10 and located on both sides of the positioning groove 11. A slider 211 docked with the sliding groove 172 is formed on the sliding body 21, and a guiding groove 212 docked with the guiding track 173 is also opened on the sliding body 21, so that the roller assembly 20 will not deviate up and down or left and right during the sliding process; in addition, limiting walls 174 extend transversely along the blocking wall 171 at the front end and the rear end of the base 10, and the roller assembly 20 limits the sliding stroke through the limiting walls 174; a roller placement position 24 for avoiding the fixing part 31 of the upper retaining piece 30 is arranged at the front position of the base 10 where the positioning groove 11 is located, and the roller assembly 20 can slide to the roller placement position 24.

[0048] Please refer to Figure 4 , Figure 5 and Figure 10 , in the embodiment of the present utility model, a hand - holding part 18 is opened at the rear end of the positioning groove 11, which is convenient for buckling and removing the pasted curved screen 50 from the base 10.

[0049] Please refer to Figure 10 , in the embodiment of the present utility model, a support structure 19 is formed in the positioning groove 11, and a CNC machining groove (not shown in the figure) for positioning and placing the screen 50 to be pasted is opened on the support structure 19. The CNC machining groove is subjected to post - CNC machining according to the specific size model of the product to be pasted. By post - CNC machining the support structure to machine different - sized CNC machining grooves based on the same - sized type of pasting device, the pasting device can be flexibly adapted to the positioning of electronic products of different size models before CNC machining.

[0050] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A roller film applicator for a curved film, which assists the curved film to adhere to a curved screen, is characterized in that Including: A base, on which a positioning groove for positioning a curved screen and a lifting beam located behind the positioning groove of the base are provided; A roller assembly, which is slidably connected to the base and is used for horizontally rolling and pressing the curved screen positioned in the positioning groove; An upper protection piece, which is fixed by the base and covers above the positioning groove, and the rear end of the upper protection piece is carried on the lifting beam; A pull belt, which is arranged between the upper protection piece and the base, and the pull belt can pass through between the lifting beam and the base to the rear of the base.

2. The roller film applicator applied to a curved film according to claim 1, characterized in that, At a position in front of the positioning groove on the base, a first upper protection fixing structure is provided, and on the lifting beam, a second upper protection fixing structure is provided. Fixing parts extend from the front end and the rear end of the upper protection piece, and the upper protection piece is fixed above the positioning groove by the fixing parts at the front end and the rear end to be fixed by the first upper protection fixing structure and the second upper protection fixing structure.

3. The roller film applicator applied to the curved film according to claim 2, characterized in that The first upper protection fixing structure includes a fixing hole opened on the base and a T-shaped column fixedly inserted into the positioning hole. The fixing part at the front end of the upper protection piece is pressed and fixed on the base by the T-shaped column. The second upper protection fixing structure includes a fixing column arranged on the lifting beam, and the fixing part at the rear end of the upper protection piece is positioned and inserted into the fixing column; And at a position on the base corresponding to the first upper protection fixing structure, a low position groove is recessed downward, and the T-shaped column is in a clearance fit with the roller assembly through the low position groove.

4. A roller film applicator applied to a curved film according to any one of claims 2-3, characterized in that, At a position on the base between the first upper protection fixing structure and the positioning groove, an elastic lifting part that can be pressed by the roller assembly is provided, and the elastic lifting part is used to lift the front end of the upper protection.

5. The roller film applicator applied to a curved film according to claim 1, characterized in that, Sliding rails are respectively arranged on both sides of the base. The roller assembly includes a sliding main body slidably connected to the sliding rails, a pushing handle flip-connected to the sliding main body, and a curved roller rotatably connected to the lower end of the sliding main body. The curved roller horizontally rolls and presses the curved screen positioned in the positioning groove, and the inner diameter in the middle of the curved roller is larger than the inner diameters at both ends of the curved roller.

6. The roller film applicator applied to a curved film according to claim 5, characterized in that, The sliding rails include blocking walls formed on both sides of the base, sliding grooves opened on the inner sides of the blocking walls, and guiding tracks formed on the base and located on both sides of the positioning groove. On the sliding main body, a slider docked with the sliding groove is formed, and the sliding main body is also provided with a guiding groove docked with the guiding track.

7. The roller film applicator for a curved film according to claim 6, wherein Restricting walls horizontally extend along the blocking walls at the front end and the rear end of the base, and the sliding stroke of the roller assembly is restricted by the restricting walls.

8. A roller film applicator applied to a curved film according to claim 1, 5, 6 or 7, characterized in that At a position in front of the positioning groove on the base, a roller placement position avoiding the fixed part of the upper protection piece is provided, and the roller assembly can slide to the roller placement position.

9. The roller film applicator applied to a curved film according to claim 5, characterized in that, A hand-held part is opened at the rear end of the positioning groove.

10. The roller film applicator applied to the curved film according to claim 1, characterized in that, A support framework is formed in the positioning groove, and a CNC machining groove for positioning and placing the screen to be pasted with film is opened on the support framework.

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