Inclined rolling film pasting device

Abstract

The utility model discloses an inclined rolling film pasting device which comprises a positioning seat, a sliding seat installed on the positioning seat in a sliding mode and a pressing roller installed on the sliding seat, and the positioning seat is provided with a positioning cavity used for containing and positioning a mobile phone. 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 compression roller is not parallel to the transverse direction of the positioning cavity, and the included angle between the axis of the compression roller and the transverse direction of the positioning cavity is 3-45 degrees; under the action of external force, the sliding seat slides along the positioning seat, the pressing roller on the sliding seat moves from the starting end of the mobile phone in the positioning cavity to the tail end, the pressing roller rolls the protective film covering the upper portion of the mobile phone while moving along with the sliding seat, and attaching of the protective film is completed. Inclined rolling is adopted, no bubble remains during film pasting, the film pasting reject ratio is effectively reduced, and the film pasting operation convenience is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of mobile phone film pasting, in particular to an inclined rolling film pasting device with double pressure rollers. Background technology:

[0002] The current film applicators can be divided into scraper type, roller type and pull-out type according to the film application method. For the roller type and pull-out type film applicators, their working principles are as follows: a pressure roller is provided on the film applicator. When in use, the protective film is adhered to the surface of the mobile phone screen through the relative movement between the pressure roller and the mobile phone positioning seat. In the process of rolling, the pressure roller gradually crushes and discharges the air between the protective film and the mobile phone screen, thereby achieving a perfect film application effect.

[0003] The difference between the roller-type film applicator and the pull-out type film applicator is that the positioning seat of the roller-type film applicator is relatively stationary, and the user directly pushes the pressure roller to move. For example, the utility model patent with Chinese patent number: 202222793757.3 discloses a roller film applicator with accurate laminating position. The technical solution adopted is: install a pressure roller 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 the film application.

[0004] The inventor has also proposed corresponding improved technical solutions, but no matter how the improvement is made, the defective rate of this roller film applicator after film applicator is more than 5% (the defective rate of qualified products should be less than 2%). All of these poor film applicator conditions are: after film applicator, small bubbles will appear in the middle area near the end of the mobile phone film. In response to this undesirable situation, the inventor initially believed that it was caused by insufficient pressure from the pressure roller, but even if measures such as increasing the interval between the pressure rollers or reducing the interval between the pressure roller surface and the mobile phone screen are taken, this undesirable situation will still occur, and at the same time, when the film is applied, due to the increase in pressure from the pressure roller, the film needs to be applied with a greater force, which is very unfriendly to female users. After continuous testing, the inventor found that one of the important reasons for this undesirable situation is that the end edge of the film is fitted with the mobile phone screen in advance, making it difficult for the air bubbles to be discharged.

[0005] See Figure 1As shown, this is a schematic diagram of a rolling film applicator. At the beginning of the film applicator (before the film applicator is half completed), the protective film 90 and the screen of the mobile phone 95 can basically achieve perfect fit, and no bubbles are generated in the fitting area. However, as the film applicator enters the second half, small bubbles 900 will appear in the middle area near the end of the mobile phone film. This situation is adopted because: under the pressure of the pressure roller 93, the end edge of the protective film 90 is fitted with the screen of the mobile phone 95 in advance, resulting in the small bubbles 900 cannot be squeezed out by the pressure roller 93. At the same time, due to the slight deformation of the pressure roller 93 in the axial direction during the rolling process, the downward pressure generated in the middle area of ​​the pressure roller 93 is directly insufficient, so that the air between the protective film 90 and the mobile phone screen cannot be completely rolled out, and small bubbles 900 are easily left. Moreover, this undesirable situation will become more and more obvious with the continuous repeated use of the film applicator, and the defective rate of film applicator will also increase significantly.

[0006] In view of the above situation, the inventor initially wanted to use a roller material with better rigidity and replace the plastic material of the pressure roller with a material with higher hardness, but this not only led to a significant increase in product cost, but also the test results did not meet the ideal standard. After continuous testing, the inventor proposed the following technical solution. Utility model content:

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an inclined rolling film laminating device which can greatly improve the film laminating yield rate.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions: an inclined rolling film applicator, which includes: a positioning seat, a sliding seat slidably installed on the positioning seat, and a pressure roller installed on the sliding seat. The positioning seat is provided with a positioning cavity for accommodating and positioning a mobile phone. The transverse direction and the longitudinal direction of the positioning cavity correspond to the width direction and the length direction of the mobile phone respectively. The axis of the pressure roller is not parallel to the transverse direction of the positioning cavity, and the angle formed between the two is 3 to 45°; under the action of external force, the sliding seat slides along the positioning seat, so that the pressure roller on the sliding seat moves from the starting end of the mobile phone located in the positioning cavity to the end end, and the pressure roller rolls the protective film covering the top of the mobile phone while moving with the sliding seat to complete the attachment of the protective film.

[0009] The angle formed between the axis of the pressing roller and the transverse direction of the positioning cavity is 5 to 25 degrees.

[0010] Slide rails or slide grooves are arranged on both sides of the positioning seat; and slide grooves or sliding blocks cooperating with the slide rails or slide grooves arranged on both sides of the positioning seat are arranged on both sides of the sliding seat.

[0011] The positioning seat is provided with a first slide groove on the outer walls on both sides thereof; the sliding seat comprises: a transverse plate and ear plates located on both sides of the transverse plate; the sliding seat clamps the positioning seat through the two ear plates, and first sliders cooperating with the first slide groove are respectively provided on the opposite inner walls of the two ear plates; the sliding seat slides along the positioning seat through the cooperation of the first slider and the first slide groove; the pressure roller is installed between the two ear plates.

[0012] Furthermore, in the above technical solution, an entrance is opened at the end of the first sliding groove, and the first sliding block enters the first sliding groove from the entrance.

[0013] Furthermore, in the above technical solution, the positioning seat is formed with side panels on the opposite sides, and a second slide groove is arranged on the inner wall of the side panel; the sliding seat includes: a horizontal plate and ear plates located on both sides of the horizontal plate, the positioning seat clamps the sliding seat through the two side panels, and second sliders cooperating with the second slide groove are respectively arranged on the outer walls of the two ear plates of the sliding seat, and the sliding seat is slidable along the positioning seat 1 through the cooperation of the second slider and the second slide groove; the pressure roller is installed between the two ear plates.

[0014] The positioning seat is provided with first slide rails on opposite sides; the sliding seat includes: a transverse plate and ear plates located on both sides of the transverse plate, and the two ear plates of the sliding seat are respectively provided with third slide grooves that cooperate with the first slide rails, and the sliding seat is slidable along the positioning seat through the cooperation of the third slide groove and the first slide rail; the pressure roller is installed between the two ear plates.

[0015] Furthermore, in the above technical solution, the pressing roller includes a first pressing roller and a second pressing roller which are parallel to each other.

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

[0018] The pressing roller in the existing products adopts a vertical rolling method, that is, the pressing roller in the horizontal state in the existing products is driven by the sliding seat, and gradually rolls from the upper side of the mobile phone to the lower side of the mobile phone, which adopts vertical rolling. The technical solution of the utility model breaks through the inherent design concept of the existing products and adopts an inclined rolling method, that is, the axis of the pressing roller and the lateral direction of the positioning cavity are designed to be non-parallel. In this way, the pressing roller first starts to roll 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 of the diagonal position 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 to the corner position of the lower side of the mobile phone by the pressing roller. Because all the bubbles will eventually be squeezed to the corner position of the lower side of the mobile phone, and as the pressing roller continues to descend relative to the mobile phone, the area between the protective film and the mobile phone that is not rolled by the pressing roller becomes smaller and smaller, and the narrow area cannot form a space to accommodate bubbles at all. Under the continuous squeezing action of the pressing roller, the bubbles are finally discharged from the corner position, and no bubbles will remain, and finally a perfect fitting effect is achieved.

[0019] According to the test, after the utility model adopts this technical solution, the defective rate of film sticking is less than 0.2%, and even if it is reused many times, the defective rate of film sticking does not exceed 0.5%. At the same time, after the utility model adopts this technical solution, the external force required by the user to stick the film is reduced, which improves the convenience of film sticking operation. Description of the drawings:

[0020] Figure 1 This is a schematic diagram of the film laminating process of an existing rolling film laminating machine;

[0021] Figure 2 This is a design principle diagram of the first embodiment of the utility model;

[0022] Figure 3 It is a three-dimensional diagram of the first embodiment of the utility model;

[0023] Figure 4 This is a front view of the first embodiment of the utility model;

[0024] Figure 5 It is a three-dimensional exploded view of the first embodiment of the utility model;

[0025] Figure 6 It is a three-dimensional diagram of the sliding seat in the first embodiment of the utility model from another perspective;

[0026] Figure 7 It is a rear view of the sliding seat in the first embodiment of the utility model;

[0027] Figure 8 This is a three-dimensional diagram of the first embodiment of the utility model after placing a mobile phone;

[0028] Fig. 9This is a schematic diagram of the film-sticking process of the first embodiment of the utility model;

[0029] Fig.10 This is a front view of the second embodiment of the utility model;

[0030] Fig.11 This is a design principle diagram of the second embodiment of the utility model;

[0031] Fig.12 It is a three-dimensional diagram of the third embodiment of the utility model;

[0032] Fig.13 It is a three-dimensional diagram of the fourth embodiment of the present utility model. Specific implementation method:

[0033] The utility model is further described below in conjunction with specific embodiments and drawings.

[0034] The utility model adopts an inclined rolling film applicator, that is, the axis of the pressing roller is designed to be non-parallel to the transverse direction of the positioning cavity. In this way, the pressing roller first starts to roll 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 on the diagonal position 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 pressing roller to the corner position on the lower side of the mobile phone. Under the continuous squeezing action of the pressing roller, the bubbles are finally discharged from the corner position without residual bubbles, and finally a perfect lamination effect is achieved.

[0035] See Figures 2 to 9 As shown, this is the first embodiment of the film applicator of the utility model. The film applicator of the first embodiment includes: a positioning seat 1, a sliding seat 2 and a pressing roller 3.

[0036] The positioning seat 1 is provided with a positioning cavity 10 for accommodating and positioning the mobile phone 4. The shape of the positioning cavity 10 matches the outer contour of the mobile phone 4 to which the film is to be applied. When in use, the mobile phone 4 is placed in the positioning cavity 10 and the mobile phone 4 is positioned by the positioning cavity 10. Positioning protrusions 14 and 15 are provided on the upper and lower outer areas of the positioning cavity 10. These positioning protrusions 14 and 15 are used to position the protective film and are suspended above the positioning cavity 10 to wait for the rolling of the pressure roller 3.

[0037] The sliding seat 2 can be slidably mounted on the positioning seat 1 , and the pressing roller 3 can be rotatably mounted on the sliding seat 2 . The pressing roller 3 is driven by the sliding seat 2 to slide along the longitudinal direction of the positioning seat 1 .

[0038] The sliding seat 2 is slidably mounted on the positioning seat 1, and the structure adopted is: the two sides of the positioning seat 1 are provided with slide rails or slide grooves; the two sides of the sliding seat 2 are provided with slide grooves or sliders that cooperate with the slide rails or slide grooves provided on the two sides of the positioning seat. For the first embodiment, the specific structure adopted is: the outer walls of the two opposite sides of the positioning seat 1 are provided with first slide grooves 11; the sliding seat 2 includes: a horizontal plate 21 and ear plates 22 located on both sides of the horizontal plate 21, and the opposite inner walls of the two ear plates 22 are respectively provided with first sliders 221 that cooperate with the first slide groove 11. The horizontal plate 21 and the ear plates 22 on both sides can be formed in an integrated manner. During installation, the spacing between the two ear plates 22 of the sliding seat 2 corresponds exactly to the width of the positioning seat 1, the sliding seat 2 clamps the positioning seat 1 through the two ear plates 22, and the first slider 221 falls into the first slide groove 11, and cooperates with the first slide groove 11 to realize the sliding of the sliding seat 2 along the positioning seat 1.

[0039] In order to maintain stable operation, two first sliders 221 are provided on each ear plate 22, and an entrance 111 is provided at the end of the first slide groove 11, and the first sliders 221 enter the first slide groove 11 from the entrance 111. Of course, the two first sliders 221 provided on each ear plate 22 can also be directly combined into a strip-shaped slide bar.

[0040] The pressure roller 3 is installed between the two ear plates 22. When the sliding seat 2 is installed on the positioning seat 1, the pressure roller 3 is located above the positioning seat 1. Specifically, the pressure roller 3 usually includes: a roller body 30 and a roller shaft 31. The roller body 30 is usually made of a cylindrical plastic material, and the roller shaft 31 is a metal shaft passing through the roller body 30. Axis holes are opened on the opposite inner sides of the ear plates 22 on both sides of the sliding seat 2, and the two ends of the roller shaft 31 can be rotatably installed in the shaft holes on the two ear plates 22. Figure 7 As shown, the pressing roller 3 is in an inclined state.

[0041] For better explanation, the utility model establishes an XY coordinate system with the transverse direction and the longitudinal direction of the positioning cavity 10, wherein the transverse direction of the positioning cavity 10 is the X-axis and the longitudinal direction is the Y-axis. That is, the transverse direction and the longitudinal direction of the positioning cavity 10 correspond to the directions of the width W and the length H of the mobile phone 4, respectively. The axis L of the pressure roller 3 of the utility model is not parallel to the transverse direction (X-axis) of the positioning cavity 10, and the angle formed between the two is 3 to 45°. In other words, the axis L of the pressure roller 3 of the utility model is not perpendicular to the longitudinal direction (Y-axis) of the positioning cavity 10, and the angle formed between the two is 3 to 45°.

[0042] Combination Figure 2As shown, in order to achieve that the axis L of the pressure roller 3 is not parallel to the transverse direction (X-axis) of the positioning cavity 10, the first embodiment adopts the following structure: the positioning cavity 10 is arranged in the same manner as the existing product, and the pressure roller 3 is installed on the sliding seat 2 at an angle relative to the positioning cavity 10, that is, the axis L of the pressure roller 3 is not perpendicular to the sliding direction F of the sliding seat 2 along the positioning seat 1; the transverse direction (X-axis) of the positioning cavity 10 is perpendicular to the sliding direction F of the sliding seat 2 along the positioning seat 1, or it can be said that the longitudinal direction (Y-axis) of the positioning cavity 10 is parallel to the sliding direction F of the sliding seat 2 along the positioning seat 1.

[0043] If the axis inclination angle of the pressing roller 3 is too large, the length of the pressing roller 3 will increase, and the space required in the longitudinal direction will also increase, which will increase the length of the entire film applicator. Therefore, in the first embodiment, the angle formed between the axis L of the pressing roller 3 and the transverse direction of the positioning cavity 10 is preferably 5 to 25 degrees, and the preferred embodiment is: 10 degrees.

[0044] Combination Figure 8 , Fig. 9 As shown, when the first embodiment is used, the mobile phone 4 is placed in the positioning cavity 10 of the positioning seat 1, and the protective film 5 is suspended and positioned above the positioning cavity 10 by the positioning protrusions 14 and 15. Under the external force of the user, the sliding seat 2 slides along the positioning seat 1, and the sliding direction is F. In the process of the sliding seat 2 moving relative to the positioning seat 1, the sliding seat 2 drives the pressure roller 3 to move relative to the positioning seat 1, that is, the pressure roller 3 moves relatively from the starting end of the mobile phone 4 in the positioning cavity 10 to the end end, and rolls the protective film 5 covering the top of the mobile phone while moving relatively. Since the pressure roller 3 is inclined relative to the positioning cavity 10 (that is, the axis L of the pressure roller 3 is not parallel to the transverse direction of the positioning cavity 10), the pressure roller 3 will first start to roll the screen of the mobile phone 4 from the right corner position of the upper side of the mobile phone 4, and then gradually roll down to the left corner position of the diagonal position of the lower side of the mobile phone 4. If bubbles are formed in the protective film 5 during the rolling process, these bubbles will be gradually squeezed by the pressing roller 3 to the left corner of the lower side of the mobile phone 4. As the pressing roller 3 continues to move downward relative to the mobile phone 4, the area between the protective film 5 and the screen of the mobile phone 4 that is not rolled by the pressing roller 3 becomes smaller and smaller. The narrow area cannot form a space to accommodate bubbles. Under the continuous squeezing action of the pressing roller 3, the bubbles are finally discharged from the left corner without any residual bubbles, thereby achieving a perfect fitting effect.

[0045] See Fig.10 , Fig.11As shown, this is the second embodiment of the utility model, which is different from the first embodiment in that: in order to achieve that the axis L of the pressure roller 3 is not parallel to the transverse direction (X-axis) of the positioning cavity 10, the second embodiment adopts the following structure: the pressure roller 3 is arranged in the same way as the existing product, that is, the pressure roller 3 is arranged horizontally, and the positioning cavity 10 is inclined relative to the pressure roller 3 on the positioning seat 1, that is, the axis L of the pressure roller 3 is perpendicular to the sliding seat 2 along the sliding direction F of the positioning seat 1; the transverse direction (X-axis) of the positioning cavity 10 is not perpendicular to the sliding direction F, or it can be said that the longitudinal direction (Y-axis) of the positioning cavity 10 is not parallel to the sliding direction F.

[0046] The difference between the second embodiment and the first embodiment is that in the first embodiment, the pressure roller 3 on the sliding seat 2 is tilted, while in the second embodiment, the positioning cavity 10 is tilted. The two have the same working principle and achieve the same film laminating effect, which will not be described here one by one.

[0047] See Fig.12 As shown, this is the third embodiment of the utility model, which is different from the first embodiment in that: the positioning seat 1 is formed with side panels 16 on opposite sides, and the inner wall of the side panels 16 is provided with a second slide groove 12; the sliding seat 2 includes: a transverse plate 21 and ear plates 22 located on both sides of the transverse plate 21, and the spacing between the two ear plates 16 corresponds to the width of the sliding seat 2. The positioning seat 1 clamps the sliding seat 2 through the two side panels 16, and the outer walls of the two ear plates 22 of the sliding seat 2 are respectively provided with second sliders 222 that cooperate with the second slide groove 12, and the sliding seat 2 slides along the positioning seat 1 through the cooperation of the second slider 222 and the second slide groove 12.

[0048] Similarly, the pressing roller 3 is installed between the two ear plates 22, and in the third embodiment, in order to facilitate pushing the sliding seat 2, a push plate 210 for applying force is integrally formed above the horizontal plate 21 of the sliding seat 2.

[0049] See Fig.13 As shown, this is the fourth embodiment of the utility model, which is different from the first embodiment in that: the first slide rails 13 are arranged on the opposite sides of the positioning seat 1; the sliding seat 2 includes: a transverse plate 21 and ear plates 22 located on both sides of the transverse plate 21, and the two ear plates 22 of the sliding seat 2 are respectively provided with third slide grooves 223 that cooperate with the first slide rail 13, and the sliding seat 2 slides along the positioning seat 1 through the cooperation of the third slide groove 223 and the first slide rail 13.

[0050] Similarly, the pressing roller 3 is installed between the two ear plates 22, and in the fourth embodiment, in order to facilitate pushing the sliding seat 2, a pulling plate 211 for applying force is pivotally connected above the horizontal plate 21 of the sliding seat 2.

[0051] The working principles of the third and fourth embodiments are the same as those of the first embodiment, and will not be described in detail here.

[0052] In addition, in the above-mentioned embodiments 1 to 4, the pressure roller 4 adopts a single pressure roller structure. In order to further improve the film-sticking effect, the utility model can also adopt a double pressure roller design, that is, the pressure roller 3 adopts a first pressure roller and a second pressure roller arranged in parallel to each other. The double pressure roller design further improves the film-sticking effect and completely eliminates bubbles.

[0053] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. An inclined rolling film applicator, the film applicator comprising: A positioning seat, a sliding seat slidably mounted on the positioning seat, and a pressing roller mounted on the sliding seat, wherein the positioning seat is provided with a positioning cavity for accommodating and positioning a mobile phone, and is characterized in that: The transverse direction and the longitudinal direction of the positioning cavity correspond to the width direction and the length direction of the mobile phone respectively, the axis of the pressing roller is not parallel to the transverse direction of the positioning cavity, and the angle formed between the two is 3 to 45°; The pressing roller is installed obliquely on the sliding seat, that is, the axis of the pressing roller is not perpendicular to the direction in which the sliding seat slides along the positioning seat; the lateral direction of the positioning cavity is perpendicular to the direction in which the sliding seat slides along the positioning seat; Under the action of external force, the sliding seat slides along the positioning seat, causing the pressure roller on the sliding seat to move from the starting end of the mobile phone in the positioning cavity to the end end. The pressure roller presses the protective film covering the top of the mobile phone while moving with the sliding seat to complete the attachment of the protective film.

2. The inclined rolling film applicator according to claim 1, characterized in that: The angle formed between the axis of the pressing roller and the transverse direction of the positioning cavity is 5 to 25 degrees.

3. The inclined rolling film applicator according to claim 1, characterized in that: Slide rails or slide grooves are arranged on both sides of the positioning seat; and slide grooves or sliding blocks cooperating with the slide rails or slide grooves arranged on both sides of the positioning seat are arranged on both sides of the sliding seat.

4. The inclined rolling film applicator according to claim 3, characterized in that: The first slide grooves are arranged on the outer walls of the two opposite sides of the positioning seat; the sliding seat comprises: a horizontal plate and ear plates located on both sides of the horizontal plate, the sliding seat clamps the positioning seat through the two ear plates, and first sliders cooperating with the first slide grooves are respectively arranged on the opposite inner walls of the two ear plates, and the sliding seat slides along the positioning seat through the cooperation of the first slider and the first slide groove; The pressing roller is installed between the two ear plates.

5. The inclined rolling film applicator according to claim 4, characterized in that: An entrance is provided at the end of the first sliding groove, and the first sliding block enters the first sliding groove from the entrance.

6. The inclined rolling film applicator according to claim 3, characterized in that: The positioning seat is formed with side plates on opposite sides, and a second slide groove is arranged on the inner wall of the side plates; the sliding seat comprises: a transverse plate and ear plates located on both sides of the transverse plate, the positioning seat clamps the sliding seat through the two side plates, and second sliders cooperating with the second slide groove are respectively arranged on the outer walls of the two ear plates of the sliding seat, and the sliding seat slides along the positioning seat through the cooperation of the second slider and the second slide groove; The pressing roller is installed between the two ear plates.

7. The inclined rolling film applicator according to claim 3, characterized in that: The first slide rails are arranged on opposite sides of the positioning seat; the sliding seat comprises: a transverse plate and ear plates located on both sides of the transverse plate, and the two ear plates of the sliding seat are respectively provided with third slide grooves cooperating with the first slide rails, and the sliding seat slides along the positioning seat through the cooperation between the third slide grooves and the first slide rails; The pressing roller is installed between the two ear plates.

8. The inclined rolling film applicator according to claim 1, characterized in that: The pressing rollers include a first pressing roller and a second pressing roller which are parallel to each other.

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