Improved film pasting device with inclined compression roller and protective film used in film pasting device

Abstract

The utility model discloses an improved film sticking device with an inclined compression roller and a protective film used for the film sticking device, the film sticking device comprises a positioning seat and the compression roller located on the positioning seat, and a first positioning part and a second positioning part are respectively arranged on the upper side and the lower side of a positioning cavity on the positioning seat. The protective film at least comprises a protective film body and a positioning film. The upper side and the lower side of the positioning film are provided with an upper positioning hole and a lower positioning hole respectively. The axis of the compression roller is not parallel to the transverse direction of the positioning cavity, and an inclined angle a is formed between the two; the width direction of the protective film body is not parallel to the transverse direction of the positioning cavity, an inclination angle b is formed between the protective film body and the positioning cavity, and the inclination direction of the inclination angle a is the same as that of the inclination angle b. According to the mobile phone protective film, the protective film body is obliquely arranged, and the inclination direction of the protective film body is opposite to the inclination direction of the pressing roller, so that transverse deflection of the pressing roller to protection is counteracted, and finally, the protective film body can be accurately attached to the surface of a mobile phone.

Description

Technical Field:

[0001] The utility model relates to the technical field of mobile phone films, and particularly refers to an improved film applicator with an inclined pressure roller and a protective film used in the film applicator. Background Art:

[0002] Currently, film applicators can be divided into: scraping type, rolling type, and pulling type according to the film application method. For rolling type and pulling type film applicators, their working principle is: a pressure roller is arranged on the film applicator. During use, through the relative movement between the pressure roller and the mobile phone positioning seat, the rolling action generated by the pressure roller adheres the protective film to the surface of the mobile phone screen. And during the rolling process of the pressure roller, the air between the protective film and the mobile phone screen is gradually rolled and discharged, so as to achieve a perfect film application effect.

[0003] For rolling type film applicators, according to different movement methods, they can be divided into the following two methods:

[0004] The first method is the way that the pressure roller is relatively stationary and the positioning seat drives the mobile phone to move. For example, see the utility model patent with the Chinese patent application number: 202223437428.1. The technical solution it adopts is: by using the inner shell (positioning seat) relative to the base, the pressing member (pressure roller) installed on the base rolls the mobile phone protective film in the inner shell to complete film application.

[0005] The second method is the way that the positioning seat is relatively stationary and the user directly pushes the pressure roller to move. For example, the utility model patent with the Chinese patent application number: 202222793757.3. The technical solution it adopts is: a pressure roller is installed on the sliding bracket, and by pushing the sliding bracket to move, the pressure roller rolls the protective film on the surface of the mobile phone to complete film application.

[0006] During the actual test of the rolling type film applicator by the inventor, the following problems were found: No matter which structure of the rolling type film applicator is adopted, the defective rate after film application exceeds 5% (the defective rate of qualified products after film application should be less than 2%). These defective situations after film application are: after film application, small bubbles will appear in the middle area near the end of the mobile phone film application. For this defective situation, the inventor initially thought it was caused by insufficient pressure of the pressure roller. However, even if measures such as increasing the diameter of the pressure roller or reducing the interval between the roller body of the pressure roller and the mobile phone screen are taken, this defective situation still appears. And at the same time, when applying the film, due to the increase in the pressure of the pressure roller, a relatively large force needs to be applied for film application, which is very unfriendly to female users. Through continuous testing, the inventor found that an important reason for this defective situation lies in the deformation of the pressure roller during the film application process.

[0007] See Figure 1 、Figure 2 As shown, when the existing rolling film applicator is working, the protective film 90 is positioned above the mobile phone 95, and then the relative movement between the pressing roller 93 and the mobile phone 95 is manually realized. At the same time, in order to achieve a tight pressing of the pressing roller 93 on the protective film, the pressing roller 93 is usually made of plastic material, which results in: when applying the film, a large frictional force will be generated between the pressing roller 93 and the protective film 90, and this frictional force will cause a certain bending deformation of the pressing roller 93 in the axial direction. Although this deformation is very small, due to the pressing roller having a certain length as a whole (the length of the pressing roller is generally greater than the width of the mobile phone screen), the deformation in the middle area of the pressing roller will be more obvious, which directly leads to insufficient downward pressure generated in the middle area of the pressing roller 93, thus unable to roll out all the air between the protective film 90 and the mobile phone screen, and small bubbles 900 are easily left behind. Moreover, with the continuous repeated use of the film applicator, this adverse situation will become more and more obvious, and the defective film application rate will also increase significantly.

[0008] In response to the above problems, the applicant has also conducted research on the rolling film applicator and proposed corresponding improved technical solutions. See the utility model patent applications with Chinese patent application numbers: 202421035675.5 and 202421036156.0. The technical solutions of these applications both adopt an inclined pressing roller. In this way, as the pressing roller continuously descends relative to the mobile phone, the area between the protective film and the mobile phone that has not been rolled by the pressing roller becomes smaller and smaller, and a space for accommodating bubbles simply cannot be formed in such a narrow area. Under the continuous squeezing action of the pressing roller, finally, all the bubbles are discharged from the corner positions and no bubbles will remain. Although this method solves the problem of bubble residue, a new problem has arisen after the actual production of the product: the protective film will shift in position during the process of being attached to the mobile phone, resulting in inaccurate attachment position between the final protective film and the mobile phone. A main reason for this situation is the lateral thrust generated by the inclined pressing roller on the protective film. See Figure 3 As shown, when the inclined pressing roller 93 contacts the protective film 90, due to the inclination of the pressing roller 93, it will form a lateral thrust on the protective film 90. Under the action of the lateral thrust, the protective film will deflect laterally. At the same time, since the protective film 90 usually adopts three-point (or four-point) positioning in the longitudinal direction and the lateral positioning force is not sufficient, the probability of the protective film 90 deflecting is relatively large. Eventually, it is possible that the protective film 90 will shift in position during the process of being attached to the mobile phone 95. Since a conventional horizontal pressing roller will not generate a horizontal thrust on the protective film during the attachment process, this situation does not exist.

[0009] Based on the above situation, the inventor of the present invention comprehensively considered the advantages and disadvantages of the inclined pressure roller and once proposed a technical solution: see the utility model patent application with the Chinese patent application number 2024212112613, which proposed an "improved double-roller film applicator". In the technical solution of this application, a double-pressure roller structure with non-parallel arrangement is adopted, and at least one pressure roller is arranged in an inclined manner (the axis of the pressure roller is not perpendicular to the relative sliding direction between the positioning seat and the pressure roller), so as to discharge all the bubbles generated when the protective film is attached to the mobile phone, without leaving any bubbles. At the same time, the other pressure roller is used to form a positioning press on the protective film to ensure that the protective film will not deflect or displace horizontally, and to ensure the accurate alignment of the protective film with the mobile phone screen, and finally achieve a perfect attachment effect.

[0010] Although the technical solution of the above "improved double-roller film applicator" overcomes the deficiencies of the single inclined pressure roller, due to its adoption of a double-roller structure, it increases the production cost of the product, and in order to assemble the double-roller structure, the length of the product is increased. Therefore, after continuous improvement by the inventor of the present invention, the following technical solution is proposed. Utility Model Content:

[0011] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide an improved film applicator with an inclined pressure roller. This film applicator does not need to increase the number of pressure rollers. For a film applicator with a single inclined pressure roller, it can also improve the problem of the inclination of the protective film after film application.

[0012] To solve the above technical problem, the present utility model adopts the following technical solution: an improved film applicator with an inclined pressure roller, which includes: a positioning seat and a pressure roller located on the positioning seat. A positioning cavity for accommodating and positioning the mobile phone is provided on the positioning seat. A first positioning portion and a second positioning portion are respectively provided on the positioning seat at positions above and below the positioning cavity. The protective film at least includes: a protective film body and a positioning film attached to the upper surface of the protective film body. Upper positioning holes and lower positioning holes corresponding to the first positioning portion and the second positioning portion are respectively provided on the upper and lower sides of the positioning film; the transverse direction and the longitudinal direction of the positioning cavity respectively correspond to the width direction and the length direction of the mobile phone. The axis of the pressure roller is not parallel to the transverse direction of the positioning cavity, and there is an inclination angle a between them; the width direction of the protective film body in the protective film is not parallel to the transverse direction of the positioning cavity, and there is an inclination angle b between them, and the inclination directions of the inclination angle a and the inclination angle b are the same; the protective film is suspended above the positioning cavity through the first positioning portion and the second positioning portion; through the mutual sliding between the positioning seat and the pressure roller, the pressure roller moves relative to the mobile phone from the starting end to the ending end, and while moving relatively, rolls the protective film covering the mobile phone to complete the attachment of the protective film.

[0013] Furthermore, in the above technical solution, the inclination angle a formed between the axis of the pressure roller and the transverse direction of the positioning cavity is 3 to 25°.

[0014] Furthermore, in the above technical solution, the inclination angle b formed between the width direction of the protective film body and the transverse direction of the positioning cavity is 1 to 20°.

[0015] Furthermore, in the above technical solution, the pressure roller is slidably mounted on the positioning seat through a sliding seat. Slide rails or chutes are provided on both sides of the positioning seat; chutes or sliders that cooperate with the slide rails or chutes provided on both sides of the positioning seat are provided on both sides of the sliding seat; when the sliding seat is pushed to slide, the sliding seat drives the pressure roller to move from above the protective film and roll-presses the protective film covering the mobile phone to complete the attachment of the protective film.

[0016] Furthermore, in the above technical solution, the pressure roller is inclinedly mounted on the sliding seat, that is, the axis of the pressure roller is not perpendicular to the direction in which the sliding seat slides along the positioning seat; the transverse direction of the positioning cavity is perpendicular to the direction in which the sliding seat slides along the positioning seat.

[0017] Furthermore, in the above technical solution, the positioning seat is slidably mounted on a base. The base includes a sliding cavity that accommodates the positioning seat and has an opening at one end. The positioning seat is mounted in the sliding cavity, and a guide rail structure for sliding is provided between the positioning seat and the sliding cavity; a pressure roller seat is provided on the base, and the pressure roller is inclinedly mounted on the pressure roller seat. When the positioning seat is pulled out along the opening end of the sliding cavity, the positioning seat drives the mobile phone placed in the positioning cavity and the protective film covering the surface of the mobile phone to move from below the pressure roller, and the pressure roller roll-presses the protective film covering the mobile phone to complete the attachment of the protective film.

[0018] Furthermore, in the above technical solution, the axis of the pressure roller is not perpendicular to the direction in which the positioning seat slides along the base; the transverse direction of the positioning cavity is perpendicular to the direction in which the positioning seat slides along the base.

[0019] Furthermore, in the above technical solution, the entire protective film is inclinedly suspended above the positioning cavity through a first positioning portion and a second positioning portion, that is, the first positioning portion and the second positioning portion are relatively inclinedly arranged on the upper and lower sides of the positioning cavity, and the inclination direction and angle are the same as the inclination angle b.

[0020] Furthermore, in the above technical solution, the positioning film in the protective film is suspended above the positioning cavity through the first positioning portion and the second positioning portion without inclination. The protective film body is relatively inclinedly attached to the lower surface of the positioning film, and the inclination direction and angle of the protective film body relative to the positioning film are the same as the inclination angle b.

[0021] Based on the above technical solution, the present utility model also provides a protective film for the above-mentioned film applicator. The protective film at least includes: a protective film body and a positioning film attached to the upper surface of the protective film body. Upper positioning holes and lower positioning holes are respectively arranged on the upper and lower sides of the positioning film. It is characterized in that: the protective film body is inclined and attached to the lower surface of the positioning film, and there is an inclination angle b between the two, and the inclination angle b is 1 to 20°.

[0022] The technical solution of the present utility model adopts an inclined pressure roller. In order to overcome the lateral deflection force generated by a single inclined pressure roller on the protective film during film application, the present utility model also inclines the protective film body in the protective film, and the inclination direction of the protective film body is opposite to the inclination direction of the pressure roller, so as to offset the lateral deflection generated by the pressure roller on the protection, and finally enable the protective film body to be accurately attached to the surface of the mobile phone. Description of the drawings:

[0023] Figure 1 is the schematic diagram of the film application process of the existing film applicator;

[0024] Figure 2 is the schematic diagram of the deformation of the pressure roller in the existing rolling film applicator during film application;

[0025] Figure 3 is the schematic diagram of the deflection of the protective film when the inclined single pressure roller applies the film;

[0026] Figure 4 is the schematic diagram of the first technical solution of the present utility model;

[0027] Figure 5 is the three-dimensional view of the first embodiment of the present utility model;

[0028] Figure 6 is the front view of the first embodiment of the present utility model in the state of placing the mobile phone after removing the sliding seat;

[0029] Figure 7 is the schematic diagram of the working state structure of the first embodiment of the present utility model;

[0030] Figure 8 is the front view of the second embodiment of the present utility model;

[0031] Figure 9 is the three-dimensional view of the second embodiment of the present utility model;

[0032] Figure 10 is the schematic diagram of the second technical solution of the present utility model;

[0033] Figure 11 is the three-dimensional view of the protective film in the present utility model;

[0034] Figure 12This is a schematic structural diagram of the protective film in the third embodiment of the present utility model. Specific implementation manner:

[0035] The present utility model will be further described below in conjunction with specific embodiments and drawings.

[0036] The present utility model is an improved film applicator with an inclined pressure roller, that is, the axis of the pressure roller in the present utility model is designed not to be parallel to the transverse direction of the positioning cavity. In this way, the pressure roller first starts to roll press the mobile phone screen from a corner position on the upper side of the mobile phone, and then gradually rolls down to the other corner position at the diagonal of the lower side of the mobile phone. Even if bubbles are formed in the protective film during the rolling process, these bubbles will be gradually squeezed by the pressure roller to the corner position on the lower side of the mobile phone. Under the continuous squeezing action of the pressure roller, finally all the bubbles are discharged from the corner position without residue, and finally the fitting of the protective film is realized.

[0037] Combined with Figure 11 As shown, the protective film 90 described in the present utility model is a multi-layer composite film, and the protective film 90 at least includes: a protective film body 901 and a positioning film 902 attached to the upper surface of the protective film body 901. The protective film body 901 currently mostly uses a tempered glass panel or other materials, and it will finally be attached to the surface of the mobile phone screen to protect the mobile phone screen.

[0038] The positioning film 902 currently uses a plastic film material such as PET, and it can be directly attached to the upper surface of the protective film body 901 by electrostatic adsorption. The function of the positioning film 902 is: through the positioning film 902, the entire protective film 90 is positioned and suspended above the mobile phone screen. After the pressure roller presses and fits, the protective film body 901 is attached to the surface of the mobile phone screen, and the positioning film 902 is separated from the protective film body 901.

[0039] In order to achieve positioning, upper positioning holes 9021 and lower positioning holes 9022 are respectively arranged on the upper and lower sides of the positioning film 902. The entire protective film 90 is positioned and suspended above the mobile phone screen through positioning with the positioning part in the film applicator by the upper and lower positioning holes.

[0040] The positioning film 902 is slightly larger than the protective film body 901, and in order to set the upper and lower positioning holes, an upper extension area 9023 extends at the upper end of the positioning film 902, and a lower extension area 9024 extends at the lower end. The upper positioning hole 9021 and the lower positioning hole 9022 are respectively arranged in the upper extension area 9023 and the lower extension area 9024.

[0041] Of course, a release film 903 can also be attached to the lower surface of the protective film body 901, and the function of the release film 903 is only to ensure that the protective film body 901 is clean before use and avoid contamination by dust and other impurities.

[0042] According to the description in the background art, the present utility model adopts an inclined pressure roller. In order to overcome the lateral deflection force generated by a single inclined pressure roller on the protective film during film pasting, the present utility model also inclines the protective film body in the protective film, and the inclination direction of the protective film body is the same as that of the pressure roller, so as to offset the lateral deflection generated by the pressure roller on the protection, and finally enable the protective film body to be accurately attached to the surface of the mobile phone. In order to achieve this technical effect, the present utility model can adopt two technical solutions:

[0043] Technical solution one: Incline the entire protective film;

[0044] Technical solution two: The entire protective film remains in a non-inclined state as a whole, and only the protective film body is inclined relative to the positioning film.

[0045] See Figure 4 As shown, this is the schematic diagram of the first technical solution of the present utility model. The film pasting device includes: a positioning seat 1 and a pressure roller 4 located on the positioning seat 1. A positioning cavity 10 for accommodating and positioning the mobile phone is provided on the positioning seat 1. A first positioning portion 11 and a second positioning portion 12 are respectively provided on the positioning seat 1 at positions above and below the positioning cavity 10.

[0046] The protective film 90 is suspended above the positioning cavity 10 through the first positioning portion 11 and the second positioning portion 12; by the mutual sliding between the positioning seat 1 and the pressure roller 4, the pressure roller 4 moves relatively from the starting end to the ending end of the mobile phone, and while moving relatively, rolls the protective film 90 covering the mobile phone to complete the pasting of the protective film 90.

[0047] Since the present utility model adopts an inclined pressure roller 4, in order to offset the lateral deflection generated by the inclined pressure roller 4 on the protective film 90, technical solution one adopts inclining the entire protective film 90. Specifically, the lateral direction and the longitudinal direction of the positioning cavity 10 respectively correspond to the width direction and the length direction of the mobile phone, the axis of the pressure roller 4 is not parallel to the lateral direction of the positioning cavity 10, and there is an inclination angle a between them; the width direction of the protective film body 901 in the protective film 90 is not parallel to the lateral direction of the positioning cavity 10, and there is an inclination angle b between them, and the inclination directions of the inclination angle a and the inclination angle b are the same.

[0048] The working principle of the first technical solution is as follows: When the inclined pressure roller 4 contacts the protective film 90, due to the inclination of the pressure roller 4, it will exert a lateral thrust on the protective film 90. Under the action of the lateral thrust, the protective film will deflect laterally. At the same time, since the protective film 90 is positioned in the longitudinal direction and the lateral positioning force is not sufficient, the protective film 90 will deflect in position during the process of fitting with the mobile phone. At the same time, in the first technical solution, since the protective film 90 itself is set to an inclined state, and the inclination direction of this inclined state is the same as the inclination direction of the pressure roller 4, the inclination of the protective film 90 itself can be used to offset the lateral deflection generated by the inclined pressure roller 4 on the protective film 90, and finally the protective film body 901 is accurately fitted on the surface of the mobile phone screen.

[0049] Of course, in the first technical solution, the magnitude of the lateral deflection angle generated by the inclined pressure roller 4 on the protective film 90 is not a constant value, and it is related to the magnitude of the frictional force received by the protective film 90 and the size of the protective film 90. After testing, the lateral deflection angle caused by the inclined pressure roller 4 on the protective film 90 is smaller than the inclination angle of the pressure roller 4 itself. For example, when the inclination angle a formed between the axis of the pressure roller 4 and the lateral direction of the positioning cavity 10 is 3 to 25°, the lateral deflection angle caused by the inclined pressure roller 4 on the protective film 90 is approximately 1 to 20°. Therefore, the inclination angle of the protective film 90 itself can be selected as: the inclination angle b formed between the width direction of the protective film body 901 and the lateral direction of the positioning cavity 10 is 1 to 20°.

[0050] To Figures 5 to 7 As shown, this is the first embodiment of the film applicator of the present utility model. The film applicator of the first embodiment includes: a positioning seat 1, a sliding seat 41, and a pressure roller 4.

[0051] A positioning cavity 10 for accommodating and positioning the mobile phone 9 is provided on the positioning seat 1, and the shape of the positioning cavity 10 matches the outer contour of the mobile phone to be filmed. During use, the mobile phone 9 is placed in the positioning cavity 10, and the mobile phone 9 is positioned through the positioning cavity 10. A first positioning portion 11 and a second positioning portion 12 are respectively provided in the upper and lower outer regions of the positioning cavity 10. The first positioning portion 11 and the second positioning portion 12 are convex platforms provided on the positioning seat 1, and the first positioning portion 11 and the second positioning portion 12 will be in positioning cooperation with the upper positioning hole 9021 and the lower positioning hole 9022 in the positioning film 902 for positioning the protective film 90, so that the protective film 90 is suspended above the positioning cavity 10 and waits for the pressing of the pressure roller 4.

[0052] In the first embodiment, the protective film 90 can directly adopt existing similar products. There will be no inclination between the protective film body 901 and the positioning film 902 in the protective film 90. The entire protective film 90 is suspended obliquely above the positioning cavity 10 through the first positioning portion 11 and the second positioning portion 12. That is, the first positioning portion 11 and the second positioning portion 12 are relatively obliquely arranged on the upper and lower sides of the positioning cavity 10, and the inclination direction and angle are the same as the inclination angle b. For example, in combination with Figure 5 , Figure 6 As shown, the connection line of the two first positioning portions 11 (or the connection line of the two second positionings 12) is inclined with respect to the lateral direction of the positioning cavity 10, and the inclination angle formed between the two is the inclination angle b.

[0053] The sliding seat 41 can be slidably installed on the positioning seat 1, and the pressing roller 4 can be rotatably installed on the sliding seat 41. The pressing roller 4 is driven by the sliding seat 41 to slide along the longitudinal direction of the positioning 1.

[0054] The sliding seat 41 is slidably installed on the positioning seat 1, and the structure adopted is: slide rails or chutes are provided on both sides of the positioning seat 1; chutes or sliders are provided on both sides of the sliding seat 41 that cooperate with the slide rails or chutes provided on both sides of the positioning seat 1. For the first embodiment, the specific structure adopted is: chutes 13 are provided on both sides of the positioning seat 1, and sliders 411 that cooperate with the chutes 13 are provided on both sides of the sliding seat 41; when the sliding seat 41 is pushed to slide along the chute 13, the sliding seat 41 drives the pressing roller 4 to move above the mobile phone 9 placed in the positioning cavity 10 and the protective film 90 covering the surface of the mobile phone 9, and rolls the protective film 90 covering the mobile phone 9 to complete the attachment of the protective film.

[0055] See Figure 8 , Figure 9 As shown, this is the second embodiment of the present utility model. In the first embodiment, the positioning seat is relatively stationary, and the user directly pushes the pressing roller to move. The second embodiment adopts the method of: the pressing roller is stationary and the positioning seat moves relatively. Specifically, the film applicator of this second embodiment includes: a positioning seat 1, a base 2, and a pressing roller 4.

[0056] The base 2 is used to carry the positioning seat 1, and a relatively slidable mounting structure is adopted between the positioning seat 1 and the base 2. Specifically, the base 2 has a draw cavity 20 that accommodates the positioning seat 1 and is open at one end. The positioning seat 1 is installed in the draw cavity 20, and a guide rail structure for drawing is provided between the positioning seat 1 and the draw cavity 20. The positioning seat 1 can be drawn out along the open end of the draw cavity 20 under the action of an external force.

[0057] As a preferred embodiment, in order to facilitate the user to apply force, a handle portion 14 for pulling is provided on one side of the positioning seat 1 near the opening end of the drawing cavity 20.

[0058] As a preferred embodiment, the guide rail structure between the positioning seat 1 and the drawing cavity 20 can adopt the following structure: two parallel guide rails 23 are provided on the surface of the drawing cavity 20, and a sliding groove 15 matching with the guide rails 23 is provided on the bottom surface of the positioning seat 1. The sliding fit between the positioning seat 1 and the drawing cavity 20 is realized through the cooperation of the guide rails 23 and the sliding groove 15. In order to improve the accuracy of the positioning seat 1 sliding along the base 2, a limiting plate 22 is formed at the upper edge position of the drawing cavity 20. The function of the limiting plate 22 is to limit the positioning seat 1 in the drawing cavity 20 to prevent the positioning seat 1 from disengaging from the drawing cavity 20.

[0059] The pressing roller 4 is installed on the base 2 and is located above the positioning seat 1. Specifically, a pair of upwardly protruding pressing roller seats 42 are formed at a position of the base 2 near the opening end of the drawing cavity 20. Axial holes are formed in the opposite inner side surfaces of the pressing roller seats 42, and both ends of the roller shaft of the pressing roller 4 are respectively rotatably installed in the axial holes on the two pressing roller seats 42.

[0060] Same as Embodiment 1, in this Embodiment 2, the first positioning portion 11 and the second positioning portion 12 are oppositely and obliquely arranged on the upper and lower sides of the positioning cavity 10, and the inclination direction and angle are the same as the inclination angle b.

[0061] When using this Embodiment 2, the mobile phone 9 is placed in the positioning cavity 10 of the positioning seat 1, and the protective film 90 is suspended and positioned above the positioning cavity 10 through the first positioning portion 11 and the second positioning portion 12. Under the action of the external force of the user pulling the handle portion 14, the positioning seat 1 slides along the base 2, and the positioning seat 1 is pulled out along the opening end of the drawing cavity 20 under the action of this external force. During the process of the positioning seat 1 moving relative to the base 2, the pressing roller 4 moves relative to the positioning seat 1, and while moving relatively, it rolls and presses the protective film covering the mobile phone. Finally, the fitting is completed.

[0062] Both of the above-mentioned Embodiments 1 and 2 adopt Technical Solution 1, in which the first positioning portion 11 and the second positioning portion 12 are oppositely and obliquely arranged on the upper and lower sides of the positioning cavity 10, so as to realize the inclined setting of the entire protective film, and there is no inclination between the protective film body 901 and the positioning film 92 in the protective film 90.

[0063] See Figure 10 As shown, Technical Solution 2: The entire protective film remains in an un-inclined state as a whole, and only the protective film body is inclined relative to the positioning film.

[0064] See Figure 12 As shown, this is Embodiment 3 of the present invention, in combination withFigure 10 As shown, the positioning film 902 in the protective film 90 described in the third embodiment is not inclined. Similar to the prior art, upper positioning holes 9021 and lower positioning holes 9022 are respectively provided on the upper and lower sides of the positioning film 902. The entire protective film 90 is positioned and suspended above the mobile phone screen by suspending it above the positioning cavity 10 through the upper and lower positioning holes and the first positioning part 11 and the second positioning part 12 in the film applicator. However, although the positioning film 902 is not inclined, the protective film body 901 is inclined. That is, the protective film body 901 is inclined and attached to the lower surface of the positioning film 902, and the inclination direction and angle of the protective film body 901 relative to the positioning film 902 are the same as the inclination angle b.

[0065] See Figure 12 As shown, the width direction W1 of the positioning film 902 is parallel to the transverse direction of the positioning cavity 10, and there is no inclination between them; the width direction W2 of the protective film body 901 is not parallel to the transverse direction of the positioning cavity 10, and there is an inclination angle b between them, that is, there is the inclination angle b between the width directions W1 and W2.

[0066] The difference between the third embodiment and the first and second embodiments is that in the third embodiment, only the protective film body 901 is inclined, and this inclined setting can be achieved during the fitting process of the protective film body 901 and the positioning film 902. For the structure of the film applicator itself in the third embodiment, the structures of the first and second embodiments can still be adopted as long as the first positioning part 11 and the second positioning part 12 are normally arranged (in a non-inclined state). Through the third embodiment, the lateral deflection of the protective film 90 caused by the inclined pressure roller 4 can also be offset.

[0067] Certainly, the above are only specific embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structures, features, and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. Improved film applicator with inclined pressure rollers, the film applicator comprising: A positioning seat (1) and a pressure roller (4) located on the positioning seat (1). A positioning cavity (10) for accommodating and positioning a mobile phone (9) is provided on the positioning seat (1). A first positioning portion (11) and a second positioning portion (12) are respectively provided at positions on the positioning seat (1) above and below the positioning cavity (10). It is characterized in that: The protective film (90) at least includes: a protective film body (901) and a positioning film (902) attached to the upper surface of the protective film body (901). Upper positioning holes (9021) and lower positioning holes (9022) corresponding to the first positioning portion (11) and the second positioning portion (12) are respectively provided on the upper and lower sides of the positioning film (902); The transverse direction and the longitudinal direction of the positioning cavity (10) respectively correspond to the width direction and the length direction of the mobile phone. The axis of the pressure roller (4) is not parallel to the transverse direction of the positioning cavity (10), and there is an inclination angle a between them; the width direction of the protective film body (901) in the protective film (90) is not parallel to the transverse direction of the positioning cavity (10), and there is an inclination angle b between them, and the inclination directions of the inclination angle a and the inclination angle b are the same; The protective film (90) is suspended above the positioning cavity (10) through the first positioning portion (11) and the second positioning portion (12); through the mutual sliding between the positioning seat (1) and the pressure roller (4), the pressure roller (4) moves relatively from the starting end to the ending end of the mobile phone (9), and while moving relatively, rolls the protective film (90) covering the mobile phone (9) to complete the attachment of the protective film (90).

2. The improved film applicator with inclined pressure rollers according to claim 1, wherein: The inclination angle a formed between the axis of the pressure roller (4) and the transverse direction of the positioning cavity (10) is 3 to 25°.

3. The improved film applicator with inclined pressure rollers according to claim 1, characterized in that: The inclination angle b formed between the width direction of the protective film body (901) and the transverse direction of the positioning cavity (10) is 1 to 20°.

4. The improved film applicator with inclined pressure rollers according to claim 1, characterized in that: The pressure roller (4) is slidably mounted on the positioning seat (1) through a sliding seat (41). Slide rails or chutes are provided on both sides of the positioning seat (1); chutes or sliders are provided on both sides of the sliding seat (41) that cooperate with the slide rails or chutes provided on both sides of the positioning seat; When the sliding seat (41) is pushed to slide, the sliding seat (41) drives the pressure roller (4) to move from above the protective film (90), and rolls the protective film (90) covering the mobile phone to complete the attachment of the protective film.

5. The improved film applicator with inclined pressure rollers according to claim 4, wherein: The pressure roller (4) is inclinedly mounted on the sliding seat (41), that is, the axis of the pressure roller (4) is not perpendicular to the sliding direction of the sliding seat (41) along the positioning seat (1); the transverse direction of the positioning cavity (10) is perpendicular to the sliding direction of the sliding seat (41) along the positioning seat (1).

6. The improved film applicator with inclined pressure rollers according to claim 1, characterized in that: The positioning seat (1) is slidably mounted on a base (2). The base (2) includes a sliding cavity (20) that accommodates the positioning seat (1) and has an opening at one end. The positioning seat (1) is installed in the sliding cavity (20), and a guide rail structure for sliding is provided between the positioning seat (1) and the sliding cavity (20); A pressure roller seat (42) is provided on the base (2) described above. The pressure roller (4) is inclined and installed on the pressure roller seat (42). When the positioning seat (1) is pulled out along the opening end of the drawing cavity (20), the positioning seat (1) drives the mobile phone placed in the positioning cavity (10) and the protective film (90) covering the surface of the mobile phone to move under the pressure roller (4). The pressure roller (4) rolls and presses the protective film (90) covering the mobile phone to complete the attachment of the protective film.

7. The improved film applicator with an inclined pressure roller according to claim 6, characterized in that: The axis of the pressure roller (4) is not perpendicular to the direction in which the positioning seat (1) slides along the base (2); the transverse direction of the positioning cavity (10) is perpendicular to the direction in which the positioning seat (1) slides along the base (2).

8. The improved film applicator with an inclined pressure roller according to any one of claims 1-7, characterized in that: The whole of the protective film (90) is inclined and suspended above the positioning cavity (10) through the first positioning portion (11) and the second positioning portion (12), that is, the first positioning portion (11) and the second positioning portion (12) are relatively inclined and arranged on the upper and lower sides of the positioning cavity (10), and the inclination direction and angle are the same as the inclination angle b.

9. The improved film applicator with an inclined pressure roller according to any one of claims 1-7, characterized in that: The positioning film (902) in the protective film (90) is suspended above the positioning cavity (10) without inclination through the first positioning portion (11) and the second positioning portion (12). The protective film body (901) is relatively inclined and attached to the lower surface of the positioning film (902), and the inclination direction and angle of the protective film body (901) relative to the positioning film (902) are the same as the inclination angle b.

10. A protective film, the protective film (90) at least includes: The protective film body (901) and the positioning film (902) attached to the upper surface of the protective film body (901). Upper positioning holes (9021) and lower positioning holes (9022) are respectively arranged on the upper and lower sides of the positioning film (902). It is characterized in that: the protective film body (901) is relatively inclined and attached to the lower surface of the positioning film (902), and there is an inclination angle b between the two, that is, the width direction of the positioning film (902) is not parallel and does not coincide with the width direction of the protective film body (901), and there is an inclination angle b between the two, and the inclination angle b is 1 to 20°.

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