Small-size back magnetic protective film and film pasting device

Abstract

The utility model relates to the technical field of protective films, in particular to a small-size back magnetic protective film and a film pasting device. The touch screen and the protective film can be tightly attached, a visual area on the back face of the touch screen can be effectively prevented from reacting with a protective film adhesive layer, the bad conditions that residual adhesive marks and mist exist in the visual area of the touch screen, and the protective film is tightly attached are avoided, and the product yield is effectively improved. Comprising touch screen glass, and a magnetic ink area is arranged on the edge of the back face of the touch screen glass; the protective film is used for being attached to the back surface of the touch screen glass and protecting the touch screen glass from being scratched and the surface from being polluted; a magnetic glue area corresponding to the magnetic ink area is arranged at the edge of the protective film; a non-viscous area is arranged in the middle of the protective film; a tearing handle integrally connected with the protective film is arranged on the protective film; the protection film is provided with an FPC clearance port. And the release film is adhered to one side of the magnetic rubber ring of the protective film.

Description

Technical Field

[0001] The utility model relates to the technical field of protective films, in particular to a small-sized back magnetic protective film and a film sticking device. Background Art

[0002] Car smart keys are now standard equipment. Small-sized OGS touch screen products are used for car-mounted smart touch keys and touch screens such as smart watches. In order to protect small-sized touch screens, film protection is often required.

[0003] For example, a Chinese utility model patent discloses a protective film member applied to a curved screen of a watch, a film applicator, and a watch (Announcement No. CN219884209U), comprising a protective film and a protective frame attached to the curved screen, the bonding surfaces of the protective film and the protective frame are both curved structures matching the curved screen, and the peripheral side surface of the protective film and the inner side surface of the protective frame are gap-matched, a first adhesive circle for attaching to the curved screen is arranged around the edge of the bonding surface of the protective film, and a second adhesive circle for attaching to the curved screen is covered on the bonding surface of the protective frame; the protective frame can protect the protective film, and the protective frame also plays a positioning role during the attachment process. When attached to the curved screen, the protective frame is first attached to the edge of the curved screen, and then the protective film is attached to the curved screen along the inner side of the protective frame. Through this arrangement, the protective film with a protective frame can also be attached to the curved screen of the watch.

[0004] However, when the inventor implemented this device, he found the following defects: some small-sized touch screens with protective films bonded to them were directly exported overseas. In order to reduce air freight costs, most of them would choose to be transported by ship. The products were on the ship, drifting on the sea for more than a month. Due to weather reasons on the sea, they were stored at the customer's place for several months, which caused a reaction between the viewing area on the back of the touch screen and the adhesive layer of the protective film. The viewing area of ​​the touch screen had residual glue marks, fog, and the protective film was tightly adhered, causing customer complaints and requiring operators to wipe it before the line; while the protective film was changed to the adhesive layer in the viewing area of ​​the touch screen, and the adhesive layer was hollowed out, there were no residual glue marks, fog, and protective film sticking in the viewing area of ​​the touch screen. However, since the ink width of the touch screen is only 2.95 mm, the adhesive area of ​​the protective film adhesive layer is too small. After the product arrives at the customer, the protective film and TP are offset or detached, causing batch returns by customers. The above problems need to be solved urgently. Utility Model Content

[0005] Based on this, it is necessary to provide a small-sized back magnetic protective film and film applicator to address the above-mentioned technical problems, which can not only achieve close fitting between the touch screen and the protective film, but also effectively prevent the reaction between the viewing area on the back of the touch screen and the adhesive layer of the protective film, avoid residual glue marks, fog, and protective film sticking in the viewing area of ​​the touch screen, and effectively improve product yield.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A small-sized back magnetic protective film is used for film protection of small-sized touch screens.

[0008] The small-sized back magnetic protective film and film applicator specifically include:

[0009] Touch screen glass, wherein a magnetic ink area is provided at the back edge of the touch screen glass;

[0010] A protective film is used to be attached to the back of a touch screen glass to protect the touch screen glass from being scratched and the surface from being contaminated; a magnetic adhesive area is arranged at the edge of the protective film corresponding to the magnetic ink area; a non-sticky area is arranged in the middle of the protective film; further, the magnetic ink area and the magnetic adhesive area are both ring-shaped; the magnetic ink area is formed by coating with magnetic materials such as iron oxide powder added to modified ink; the magnetic adhesive area is formed by bonding with magnetic materials such as iron oxide powder added to adhesive glue.

[0011] As a preferred embodiment of the small-sized back magnetic protective film provided by the utility model, a tear handle integrally connected to the protective film is provided on the protective film.

[0012] As a preferred implementation of the small-sized back magnetic protective film provided by the utility model, an FPC air-avoiding opening is provided on the protective film.

[0013] As a preferred embodiment of the small-sized back magnetic protective film provided by the utility model, it also includes a release film, and the release film is adhered to one side of the magnetic adhesive area on the protective film.

[0014] A film applicator comprises a mounting seat, a flip seat hingedly mounted on the mounting seat, a pressing assembly mounted on the flip seat, a first placement mold groove fixedly mounted on the mounting seat, and a rolling assembly, wherein the pressing assembly comprises a pressing rod, a second placement mold groove mounted on the end of the pressing rod, an electromagnet ring is provided in the second placement mold groove, and the pressing rod can be slidably mounted on the flip seat; the rolling assembly comprises a frame hingedly mounted on the mounting seat, a pressure roller rotatably mounted on the frame body, and a tension spring for elastically connecting the frame body and the mounting seat; further, the flip seat is hinged to the mounting seat by a hinge, and the flip seat can rotate 90 degrees around the hinge point, the first placement mold groove is used to place a protective film, and the first placement mold groove matches the shape of the protective film, the second placement mold groove is used to place a touch screen glass, and the second placement mold groove matches the shape of the touch screen glass; one end of the tension spring is hinged to the mounting seat, and the other end of the tension spring is hinged to the frame body.

[0015] As a preferred embodiment of the film applicator provided by the utility model, a plurality of air suction holes are provided in the second placement mold groove, and an air pipe connected to the air suction holes is provided in the pressing rod.

[0016] As a preferred embodiment of the film applicator provided by the utility model, a spring is sleeved on the pressing rod, one end of the spring abuts against the upper part of the pressing rod, and the other end of the spring abuts against the flip seat.

[0017] As a preferred embodiment of the film applicator provided by the utility model, a slide groove is provided on the pressing rod, and a limiting bolt inserted into the slide groove is screwed on the flip seat, and the limiting bolt can be slidably installed in the slide groove.

[0018] As a preferred embodiment of the film applicator provided by the utility model, the outer wall of the pressing roller is covered with a flexible sleeve; further, the flexible sleeve can be a rubber sleeve or a silicone sleeve.

[0019] As a preferred embodiment of the film applicator provided by the utility model, a receiving platform is provided at the bottom of the mounting seat.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides a small-sized back magnetic protective film and film applicator. The magnetic adhesive area on the protective film and the magnetic ink area on the back of the touch screen glass are attracted to each other after being overlapped, and a non-sticky area is reserved in the middle of the protective film. No residual adhesive marks, mist, or tight adhesion of the protective film will be generated on the viewing area of ​​the touch screen glass, and the protective film will not be offset or separated due to the narrow ink width. The touch screen and the protective film can be closely attached to each other, and the reaction between the viewing area on the back of the touch screen and the adhesive layer of the protective film can be effectively prevented, so that the undesirable conditions such as residual adhesive marks, mist, and tight adhesion of the protective film in the viewing area of ​​the touch screen can be avoided, and the product yield rate can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the planar structure of the back magnetic protective film provided by the utility model;

[0024] Figure 2 This is a schematic diagram of the side planar structure of the back magnetic protective film provided by the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the touch screen glass plane on the back magnetic protective film provided by the utility model;

[0026] Figure 4 This is a schematic diagram of an embodiment of a protective film attached to a touch screen glass;

[0027] Figure 5 This is a schematic diagram of the isometric three-dimensional structure of the film applicator provided by the utility model;

[0028] Figure 6 This is a schematic diagram of the right side planar structure of the film applicator provided by the utility model;

[0029] Figure 7 for Figure 6 Schematic diagram of the cross-section structure at AA in the middle;

[0030] Figure 8 for Figure 7 Schematic diagram of the cross-section structure at BB in the middle;

[0031] Fig. 9 This is a schematic diagram of the left side stereoscopic structure of the film applicator provided by the utility model;

[0032] The markings in the figure are as follows: 1. Touch screen glass; 2. Magnetic ink area; 3. Protective film; 4. Magnetic glue area; 5. Non-sticky area; 6. Tear handle; 7. FPC air avoidance; 8. Release film; 9. Mounting seat; 10. Flip seat; 11. First placement mold groove; 12. Press rod; 13. Second placement mold groove; 14. Electromagnetic iron ring; 15. Frame; 16. Pressure roller; 17. Tension spring; 18. Intake hole; 19. Air pipe; 20. Spring; 21. Slide groove; 22. Limit bolt; 23. Flexible sleeve; 24. Receiver. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0034] As described in the background technology, a protective film part and its film applicator and watch are used for the curved screen of a watch; some small-sized touch screens bonded with protective films are directly exported overseas. In order to reduce air freight costs, most of them will choose to be transported by ship. The product is on the ship, drifting on the sea for more than a month. Due to weather reasons on the sea, the product is stored at the customer's place for several months, which causes the viewing area on the back of the touch screen to react with the adhesive layer of the protective film, resulting in residual glue marks, fog, and tight adhesion of the protective film on the viewing area of ​​the touch screen, causing customer complaints and requiring operators to wipe it before the line; while the protective film is changed to the adhesive layer of the touch screen viewing area hollowed out, there is no residual glue mark, fog, or tight adhesion of the protective film in the viewing area of ​​the touch screen, but because the ink width of the touch screen is only 2.95mm, the adhesion area of ​​the protective film adhesive layer is too small. After the product arrives at the customer, the protective film and TP are offset or detached, causing batch returns by customers. The above problems need to be solved urgently.

[0035] In order to solve this technical problem, the utility model provides a small-sized back magnetic protective film and a film applicator, which are applied to the film protection of a small-sized touch screen.

[0036] Specifically, please refer to Figure 1-4 The small-sized back magnetic protective film specifically includes: a touch screen glass 1, a magnetic ink area 2 is provided at the back edge of the touch screen glass 1; a protective film 3 is used to be attached to the back of the touch screen glass 1 to protect the touch screen glass 1 from being scratched and the surface from being polluted; a magnetic glue area 4 is provided at the edge of the protective film 3 and is arranged corresponding to the magnetic ink area 2; a non-sticky area 5 is provided in the middle of the protective film 3; further, the magnetic ink area 2 and the magnetic glue area 4 are both ring-shaped; the magnetic ink area 2 is formed by coating with magnetic materials such as iron oxide powder added to modified ink; the magnetic glue area 4 is formed by bonding with magnetic materials such as iron oxide powder added to adhesive glue.

[0037] The utility model provides a small-sized back magnetic protective film, in which the magnetic adhesive area 4 of the protective film 3 is superimposed with the magnetic ink area 2 on the back of the touch screen glass 1 and attracts each other, and a non-sticky area 5 is reserved in the middle of the protective film 3, so that the viewing area of ​​the touch screen glass 1 will not produce residual adhesive marks, fog, and the protective film 3 will not be tightly adhered, and the protective film 3 will not be offset or separated due to the narrow ink width; it can not only realize the close fit between the touch screen glass 1 and the protective film 3, but also effectively prevent the viewing area on the back of the touch screen from reacting with the adhesive layer of the protective film 3, avoid the undesirable conditions such as residual adhesive marks, fog, and the protective film 3 being tightly adhered in the viewing area of ​​the touch screen, and effectively improve the product yield.

[0038] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] Example 1

[0042] Please refer to Figure 1-3 A small-sized back magnetic protective film comprises a touch screen glass 1, a magnetic ink area 2 is provided at the back edge of the touch screen glass 1; a protective film 3 is used to be attached to the back of the touch screen glass 1 to protect the touch screen glass 1 from being scratched and the surface from being polluted; a magnetic glue area 4 is provided at the edge of the protective film 3 and is arranged corresponding to the magnetic ink area 2; a non-sticky area 5 is provided in the middle of the protective film 3; a tear handle 6 integrally connected to the protective film 3 is provided on the protective film 3; an FPC air avoidance port 7 is provided on the protective film 3; and a release film 8 is also included, which is adhered to one side of the magnetic rubber ring of the protective film 3.

[0043] The small-sized back magnetic protective film provided by the utility model can be easily torn off the protective film 3 from the touch screen glass 1 through the tear handle 6, and the FPC avoidance opening 7 can provide an avoidance space for the FPC integrally bound with the touch screen glass 1 to avoid the interference of the FPC on the protective film 3 and the touch screen glass 1; in the early stage of the protective film 3 not being used, the release film 8 is adhered to one side of the magnetic rubber ring of the protective film 3 to protect the protective film 3 and avoid the protective film 3 being contaminated by dust and the like.

[0044] Example 2

[0045] A film applicator, specifically, Figure 5-9As shown, it includes a mounting seat 9, a flip seat 10 hingedly mounted on the mounting seat 9, a pressing assembly mounted on the flip seat 10, a first placement mold groove 11 fixedly mounted on the mounting seat 9 and a rolling assembly, the pressing assembly includes a pressing rod 12, a second placement mold groove 13 mounted on the end of the pressing rod 12, an electromagnet ring 14 is arranged in the second placement mold groove 13, and the pressing rod 12 can be slidably mounted on the flip seat 10; the rolling assembly includes a frame 15 hingedly mounted on the mounting seat 9, a pressure roller 16 rotatably mounted on the frame 15 and a roller 16 for rotating the frame 15 and the mounting seat 9. A tension spring 17 is elastically connected to the mounting seat 9; further, the flip seat 10 is hinged to the mounting seat 9 through a hinge, and the flip seat 10 can rotate 90 degrees around the hinge point; the first placement mold groove 11 is used to place the protective film 3, and the first placement mold groove 11 matches the shape of the protective film 3; the second placement mold groove 13 is used to place the touch screen glass 1, and the second placement mold groove 13 matches the shape of the touch screen glass 1; one end of the tension spring 17 is hinged to the mounting seat 9, and the other end of the tension spring 17 is hinged to the frame 15; further, an electromagnet ring 14 can also be set in the first placement mold groove 11.

[0046] The film laminating device provided in this embodiment places the protective film 3 in a vertical state into the first placement mold groove 11, rotates the flip seat 10 so that the second placement mold groove 13 on the pressing rod 12 faces the first placement mold groove 11, and places the touch screen glass 1 into the second placement mold groove 13. After the electromagnet ring 14 is energized, it is attracted to the magnetic ink area 2 on the touch screen protective film 3 to adsorb the touch screen glass 1 into the second placement mold groove 13, pushes the pressing rod 12, and the second placement mold groove 13 contacts the first placement mold groove 11, and the protective film 3 is attached to the touch screen glass 1. The flip seat 10 is rotated to the initial state, and the pressing rod 12 is pressed downward in a vertical state. The pressure roller 16 contacts the bottom of the second placement mold groove 13, and the pressure roller 16 gradually presses the protective film 3 on the touch screen glass 1 to squeeze out the bubbles between the protective film 3 and the touch screen glass 1, thereby realizing the laminating operation of the touch screen glass 1 and the protective film 3.

[0047] Example 3

[0048] The film applicator provided in Example 2 is further optimized, such as Figure 8 As shown, a plurality of air suction holes 18 are provided in the second placement mold cavity 13 , and an air pipe 19 connected to the air suction holes 18 is provided in the pressing rod 12 .

[0049] The film laminator provided in this embodiment has an air pipe 19 connected to an external suction device, and the touch screen glass 1 is tightly adsorbed into the second placement mold groove 13 through the suction hole 18 to prevent the touch screen glass 1 from being separated from the second placement mold groove 13 during the bonding process of the protective mold and the touch screen glass 1; after the film lamination is completed, the suction hole 18 is separated from the adsorption of the touch screen glass 1.

[0050] Specifically, a spring 20 is sleeved on the pressing rod 12, one end of the spring 20 abuts against the upper part of the pressing rod 12, and the other end of the spring 20 abuts against the flip seat 10; the spring 20 can cause the pressing rod 12 to automatically reset after the pressing rod 12 is released from the force, so as to provide convenient operation.

[0051] Specifically, a slide groove 21 is provided on the pressing rod 12, and a limiting bolt 22 inserted into the slide groove 21 is screwed on the flip seat 10, and the limiting bolt 22 can be slidably installed in the slide groove 21; through the slide groove 21 and the limiting bolt 22, the pressing rod 12 can be effectively prevented from rotating, ensuring that the pressing rod 12 moves in a vertical state during the contact process with the pressure roller 16.

[0052] Specifically, the outer wall of the pressure roller 16 is covered with a flexible sleeve 23; further, the flexible sleeve 23 can be a rubber sleeve or a silicone sleeve, etc.; the flexible sleeve 23 can make the pressure roller 16 and the protective film 3 flexibly contact each other, thereby preventing the pressure roller 16 from scratching the protective film 3 and playing a certain protective role on the protective film 3.

[0053] Specifically, a receiving platform 24 is provided at the bottom of the mounting seat 9; further, the receiving platform 24 is preferably a soft rubber platform. After the touch screen glass 1 is attached with the protective film 3, it is received by the receiving platform 24 to prevent the touch screen glass 1 from being damaged when it falls to the ground.

[0054] The use process of the small-sized back magnetic protective film and the film applicator provided by the utility model is as follows: the release film 8 on the protective film 3 is torn off, the protective film 3 is placed in the first placement mold groove 11, the flip seat 10 is rotated to make the second placement mold groove 13 on the pressing rod 12 face the first placement mold groove 11, the touch screen glass 1 is placed in the second placement mold groove 13, the electromagnet ring 14 is energized and attracted to the magnetic ink area 2 on the protective film 3, and the touch screen glass 1 is further attracted through the suction hole 18, and the touch screen glass 1 is stably attracted to the second placement mold groove 13, and the pressing rod 12 is pushed, and the second placement mold groove 13 and the first placement mold groove 11 are attracted to the second placement mold groove 13. The first placement mold groove 11 is in contact, the protective film 3 is attached to the touch screen glass 1, the pressing rod 12 is reset, the flip seat 10 is rotated to the initial state, the pressing rod 12 is pressed downward in a vertical state, and the pressing roller 16 is in contact with the bottom of the second placement mold groove 13. The pressing roller 16 gradually presses the protective film 3 on the touch screen glass 1 to squeeze out the bubbles between the protective film 3 and the touch screen glass 1. When the second placement mold groove 13 is separated from the pressing roller 16, the suction hole 18 stops sucking air, and the electromagnet ring 14 is powered off and separated from the adsorption of the touch screen glass 1. The touch screen glass 1 with the protective film 3 attached falls to the receiving table 24 for unloading.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A small-sized back magnetic protective film, characterized in that: It includes: Touch screen glass (1), wherein a magnetic ink area (2) is provided at the back edge of the touch screen glass (1); A protective film (3) is used to be attached to the back of a touch screen glass (1) to protect the touch screen glass (1) from being scratched and the surface from being contaminated; a magnetic adhesive area (4) arranged corresponding to the magnetic ink area (2) is provided at the edge of the protective film (3); and a non-adhesive area (5) is provided in the middle of the protective film (3).

2. The small-sized back magnetic protective film according to claim 1, characterized in that: The protective film (3) is provided with a tearing handle (6) which is integrally connected to the protective film (3).

3. The small-sized back-side magnetic protective film according to claim 2, characterized in that: The protective film (3) is provided with an FPC air avoidance opening (7).

4. The small-sized back-side magnetic protective film according to claim 3, characterized in that: It also includes a release film (8), wherein the release film (8) is adhered to one side of the magnetic adhesive area (4) on the protective film (3).

5. A film sticking device, used for sticking the small-sized back magnetic protective film according to any one of claims 1 to 4, characterized in that: The invention comprises a mounting seat (9), a flip seat (10) hingedly mounted on the mounting seat (9), a pressing assembly mounted on the flip seat (10), a first placement die groove (11) fixedly mounted on the mounting seat (9), and a rolling assembly, wherein the pressing assembly comprises a pressing rod (12), a second placement die groove (13) mounted on the end of the pressing rod (12), an electromagnet ring (14) being arranged in the second placement die groove (13), and the pressing rod (12) can be slidably mounted on the flip seat (10); the rolling assembly comprises a frame (15) hingedly mounted on the mounting seat (9), a pressure roller (16) rotatably mounted on the frame (15), and a tension spring (17) for elastically connecting the frame (15) and the mounting seat (9).

6. The film applicator according to claim 5, characterized in that: A plurality of air suction holes (18) are provided in the second placement mold groove (13), and an air pipe (19) in communication with the air suction holes (18) is provided in the pressing rod (12).

7. The film applicator according to claim 6, characterized in that: A spring (20) is sleeved on the pressing rod (12), one end of the spring (20) abuts against the upper part of the pressing rod (12), and the other end of the spring (20) abuts against the turning seat (10).

8. The film applicator according to claim 5, characterized in that: The pressing rod (12) is provided with a slide groove (21), and the flip seat (10) is threaded with a limiting bolt (22) inserted into the slide groove (21), and the limiting bolt (22) can be slidably installed in the slide groove (21).

9. The film applicator according to claim 5, characterized in that: The outer wall of the pressing roller (16) is covered with a flexible sleeve (23).

10. The film applicator according to claim 5, characterized in that: A receiving platform (24) is provided at the bottom of the mounting seat (9).

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