Improved inclined press-roller screen protector applicator

Abstract

An improved inclined press-roller screen protector applicator, comprising a positioning base (1) and a press roller (4) located above the positioning base (1). The press roller (4) moves relatively from a starting end of a positioning cavity (10) to a tail end, and while moving relatively, the press roller (4) presses a screen protector (6) positioned above a mobile phone (5), and the axis of the press roller (4) is not parallel to the transverse direction of the positioning cavity (10). The positioning base (1) is provided with a displacement limiting member higher than the positioning cavity (10). In a state where the press roller (4) moves relatively to the tail end of the positioning cavity (10), the displacement limiting member blocks the press roller (4), and in this state, the press roller (4) is not completely disengaged from above the mobile phone (5), and at least part of the press roller (4) is pressed against a corner position of the mobile phone (5).

Description

Improved inclined pressure roller type film applicator TECHNICAL FIELD

[0001] The utility model relates to mobile phone film technology field, especially an improved inclined pressure roller type film applicator. BACKGROUND

[0002] As shown in FIG. 1 and FIG. 2, it is a schematic diagram of a pull-out type film applicator. It comprises a positioning seat 91, a base 92 and a pressure roller 93. The positioning seat 91 is provided with a positioning cavity 910 for accommodating and positioning a mobile phone 95. The positioning seat 91 can be pull-out installed in a pull-out cavity 920 of the base 92. The base 92 is provided with a pressure roller lug plate 94. The pressure roller 93 is installed between the two pressure roller lug plates 94. The protective film 90 for mobile phone comprises a positioning film in the upper layer and a protective film body in the lower layer. The positioning film extends outwardly at both ends to form a positioning connecting part. The positioning connecting part is connected with the positioning part on the positioning seat 91, so as to position and install the protective film 90 above the screen of the mobile phone 95.

[0003] When the positioning seat 91 is pulled out along the pull-out cavity 920, the positioning seat 91 drives the mobile phone 95 placed in the positioning cavity 910 and the protective film 90 covering the surface of the mobile phone 95 to move from below the pressure roller 93. The pressure roller 93 rolls and presses the protective film 90 covering the mobile phone 95 to complete the attachment of the protective film. As can be seen, in the current pull-out type film applicator, the axis of the pressure roller 93 is perpendicular to the moving direction of the positioning seat 91.

[0004] As shown in FIG. 3, at the beginning of the film application (before half of the film application is completed), the protective film 90 can be perfectly attached to the screen of the mobile phone, and no bubbles are generated in the attached area. However, as the film application enters the second half, small bubbles 900 will appear in the middle area close to the end of the film application. The reason for this situation is that under the pressure of the pressure roller 93, the end edge of the protective film 90 is attached to the screen of the mobile phone 95 in advance, which causes the small bubbles 900 to be unable to 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 in the middle area of the pressure roller 93 is insufficient, which causes the air between the protective film 90 and the screen of the mobile phone to be unable to be completely rolled and pressed out, and small bubbles 900 are easily formed. And this adverse situation will become more and more obvious with the repeated use of the film applicator, and the film application failure rate will also be greatly improved.

[0005] In view of the above, the applicant has proposed a Chinese utility model patent application for "a tilting type pulling film applicator", patent application number: 202421035675.5. The technical solution adopted is: an inclined rolling is adopted in the film applicator, that is, the axis of the pressure roller is designed to be non-parallel to the transverse direction of the positioning cavity. In this way, the pressure roller first starts to roll on the screen of the mobile phone from a corner position on the upper side of the mobile phone, and then gradually rolls down to another corner position on 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 on the lower side of the mobile phone by the pressure roller. Since all the bubbles will eventually be squeezed to the corner position on the lower side of the mobile phone, and as the pressure roller continuously descends relative to the mobile phone, the area between the protective film and the mobile phone that is not rolled by the pressure roller becomes smaller and smaller. The small area cannot form a space to accommodate the bubbles. Under the continuous squeezing action of the pressure roller, the bubbles are finally completely discharged from the corner position and no bubbles are left. Finally, a perfect fitting effect is achieved.

[0006] The film applicator produced by the applicant according to the above technical solution has the following problems in the actual production test process: during the relative movement of the pressure roller on the mobile phone, the pressure roller first starts to roll on the screen of the mobile phone from a corner position on the upper side of the mobile phone, and then gradually rolls down to another corner position on the lower side of the mobile phone. The original design is that the pressure roller should completely press the upper side of the mobile phone, that is, when the relative movement stops, the pressure roller should have completed the pressing of the other corner position on the lower side of the mobile phone. In this way, the protective film can be fully attached to the surface of the mobile phone without any missed area. However, in the actual test process, as shown in Figures 1 and 2, due to the structure of the pulling type film applicator, the positioning film on the protective film 90 is still limited on the positioning seat 91 of the film applicator. The mobile phone 95 that has completed the film application cannot be taken out from the positioning cavity 910 of the positioning seat. Only after the positioning seat 91 is reset (the pressure roller 93 returns to the state of Figure 1 from back to front, and the pressure roller 40 is separated from the protective film 90), the positioning film in the protective film 90 is removed, and the mobile phone 95 can be taken out. During the resetting process, the pressure roller needs to return to the corner from the diagonal line position on the lower side of the mobile phone. At this time, the edge of the protective film at this corner position will be subjected to a squeezing action. Under the squeezing action, the protective film that has been attached to the mobile phone may be warped, resulting in the formation of bubbles at the corner position. In extreme cases, the protective film at the corner position may be bent due to warping, resulting in damage to the protective film and making it unusable. Although the frequency of such adverse conditions is not high, in order to eliminate such conditions, the inventor has proposed the following improvement scheme. Technical problem

[0007] The utility model wants to overcome the prior art's insufficient, provide an improved type tilt pressure roller type film applicator, avoid the pressure roller type film applicator in the film process, because the return of pressure roller makes the bubble of protective film corner. Technical solutions

[0008] In order to solve the above technical problems, the improved type tilt pressure roller type film applicator is adopted, which comprises: a positioning seat and a pressure roller located above the positioning seat and having a length greater than the width of the mobile phone, a positioning cavity for accommodating and positioning the mobile phone is arranged on the positioning seat, the pressure roller moves relatively from the starting end to the end of the positioning cavity, and the protective film positioned above the mobile phone is pressed at the same time, 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, and the axis of the pressure roller is not parallel to the transverse direction of the positioning cavity.

[0009] Further, in the above technical solution, when the pressure roller moves relatively from the starting end to the end, the pressure roller and the mobile phone pressing area move relatively from the first corner of the starting end to the second corner of the diagonal line position; in the terminal position state of the relative movement of the pressure roller, the second corner position of the mobile phone is not pressed by the pressure roller to form an unpressed area, and the width of the unpressed area is less than one half of the width of the mobile phone.

[0010] Further, in the above technical solution, the width of the unpressed area is less than one third of the width of the mobile phone.

[0011] Further, in the above technical solution, the axis of the pressure roller is not perpendicular to the relative sliding direction of the positioning seat; the transverse direction of the positioning cavity is perpendicular to the relative sliding direction of the positioning seat, and the included angle between the axis of the pressure roller and the transverse direction of the positioning cavity is 3-20 °.

[0012] Further, in the above technical solution, the positioning seat can be installed on a base through pulling, the base comprises a pulling cavity having an opening at one end for accommodating the positioning seat, the positioning seat is installed in the pulling cavity, and a guide rail structure for pulling is arranged between the positioning seat and the pulling cavity; the base is provided with a pressure roller seat, the pressure roller is installed on the pressure roller seat, when the positioning seat is pulled out along the opening end of the pulling cavity, the mobile phone placed in the positioning cavity and the protective film positioned on the surface of the mobile phone move from below the pressure roller, the pressure roller rolls and presses the protective film positioned on the mobile phone, and the attachment of the protective film is completed.

[0013] Further in the technical scheme, the base is pivotally connected with a cover, and the cover clamps the pressure roller seat when the cover is closed on the base.

[0014] Further in the technical scheme, the pressure roller is slidably installed on the positioning seat through a sliding seat, and the positioning seat is provided with sliding rails or sliding grooves on two sides; the sliding seat is provided with sliding grooves or sliding blocks matched with the sliding rails or sliding grooves on the two sides of the positioning seat; when the sliding seat is pushed to slide, the sliding seat drives the pressure roller to move above the protective film and roll press the protective film positioned on the mobile phone, so as to complete the attachment of the protective film.

[0015] Further in the technical scheme, the relative movement of the pressure roller and the positioning seat to the end position is limited by the length of the guide rail structure between the positioning seat and the pulling cavity, or by the displacement limiting piece arranged in the guide rail structure.

[0016] Further in the technical scheme, the relative movement of the pressure roller and the positioning seat to the end position is limited by the length of the sliding rail or sliding groove between the positioning seat and the sliding seat, or by the displacement limiting piece arranged in the sliding rail or sliding groove.

[0017] Further in the technical scheme, the end position of the relative movement of the pressure roller and the positioning seat is limited by the displacement limiting piece integrally arranged on the positioning seat; the displacement limiting piece is higher than the positioning cavity and interferes with the pressure roller. Advantageous effects

[0018] After the technical scheme is adopted, the problems of bubble, warping and damage of the edge of the protective film caused by the return of the pressure roller are solved. This is because the pressure roller does not completely press the surface of the mobile phone. The end position of the relative movement of the pressure roller and the positioning seat is limited, and there is an unpressed area at the edge of the mobile phone in this end position, so that the pressure roller does not completely separate from the mobile phone. When the pressure roller returns, it is above the protective film and does not form a pressing effect on the edge of the protective film. At the same time, the unpressed area is very small at the edge of the mobile phone, and the protective film can automatically complete the attachment to the mobile phone by its own elasticity.

[0019] After the technical scheme is adopted, no bubble, warping or damage of the protective film caused by the return of the pressure roller occurs after more than 1000 tests. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a perspective view of the existing pulling type film applicator

[0021] Figure 2 is a perspective view of the film state of the existing pull type film applicator;

[0022] Figure 3 is a schematic diagram of the film application process of the existing pull type film applicator;

[0023] Figure 4 is a schematic diagram of the design of the inclined roller type film applicator;

[0024] Figure 5 is a perspective view of the first embodiment of the utility model;

[0025] Figure 6 is a front view of the first embodiment of the utility model;

[0026] Figure 7 is a perspective view of the first embodiment of the utility model in the pulling state;

[0027] Figure 8 is a perspective view of the positioning seat in the first embodiment of the utility model;

[0028] Figure 9 is a film application schematic diagram of the first embodiment of the utility model;

[0029] Figure 10 is a perspective view of the second embodiment of the utility model;

[0030] Figure 11 is a partial schematic view of the third embodiment of the utility model;

[0031] Figure 12 is a film application schematic diagram of the third embodiment of the utility model;

[0032] Figure 13 is a front view of the fourth embodiment of the utility model;

[0033] Figure 14 is a perspective exploded view of the fourth embodiment of the utility model;

[0034] Figure 15 is a perspective view of the fifth embodiment of the utility model;

[0035] Figure 16 is a perspective view of the sixth embodiment of the utility model. Embodiments of the application

[0036] The utility model is further described below in combination with specific embodiments and the drawings.

[0037] In combination with Figure 4, the utility model is an improved inclined roller type film applicator, and the roller 4 is inclined, that is, the axis L of the roller 4 is designed to be non-parallel to the transverse direction of the positioning cavity. In this way, under the action of the force F, the roller 4 first starts to roll and press the screen of the mobile phone from a corner position on the upper side of the mobile phone, and then gradually rolls and presses downward to another corner position on the diagonal line of the lower side of the mobile phone. Even if bubbles are formed in the protective film during the rolling and pressing process, these bubbles will be gradually squeezed to the corner position on the lower side of the mobile phone by the roller. Under the continuous squeezing action of the roller 4, the bubbles are finally discharged from the corner position without residual bubbles, and a perfect fitting effect is finally achieved.

[0038] The relative sliding between the pressure roller and the positioning seat in the utility model can be realized by the following two modes: mode one: the pressure roller is fixed, and the positioning seat slides relative to the pressure roller; mode two: the positioning seat is fixed, and the pressure roller slides along the positioning seat. The specific implementation mode will be described in detail later.

[0039] As shown in FIGS. 5 to 9, this is an embodiment one of the film applicator of the utility model. The embodiment one adopts the above-mentioned mode one, that is, the pressure roller 4 is fixed, and the positioning seat 1 slides relative to the pressure roller 4. The film applicator of the embodiment one comprises the positioning seat 1, the base 2 and the pressure roller 4.

[0040] The positioning seat 1 is provided with a positioning cavity 10 for accommodating and positioning a mobile phone. The positioning cavity 10 matches the peripheral contour of the mobile phone to which the film is needed. In use, the mobile phone is placed in the positioning cavity 10, and the mobile phone is positioned by the positioning cavity 10. The upper positioning part 13 and the lower positioning part 14 are respectively arranged on the front and rear outer side regions of the positioning cavity 10. The upper positioning part 13 and the lower positioning part 14 are used for positioning the positioning film in the protective film. The protective film for film pasting is suspended above the positioning cavity 10 through the upper positioning part 13 and the lower positioning part 14, and waits for the pressure of the pressure roller 4.

[0041] The base 2 is used for bearing the positioning seat 1, and the positioning seat 1 and the base 2 adopt a relative sliding mounting structure. Specifically, the base 2 has a pull-out cavity 20 which accommodates the positioning seat 1 and has an open end. The positioning seat 1 is mounted in the pull-out cavity 20, and a guide rail structure for pulling out is arranged between the positioning seat 1 and the pull-out cavity 20. The positioning seat 1 can be pulled out along the open end of the pull-out cavity 20 under the action of an external force.

[0042] As a preferred embodiment, in order to facilitate the user to exert force, the positioning seat 1 is provided with a handle part 11 for pulling out near the open end of the pull-out cavity 20.

[0043] As a preferred embodiment, the guide rail structure between the positioning seat 1 and the pull-out cavity 20 can adopt the following structure: two parallel guide rails 23 are arranged on the surface of the pull-out cavity 20, and the bottom surface of the positioning seat 1 is provided with a sliding groove 15 matched with the guide rails 23. The sliding cooperation of the positioning seat 1 along the pull-out cavity 20 is realized through the cooperation of the guide rails 23 and the sliding groove 15. In order to improve the precision of the sliding of the positioning seat 1 along the base 2, the upper end edge position of the pull-out cavity 20 is formed into a limiting plate 22. The limiting plate 22 limits the positioning seat 1 in the pull-out cavity 20, so as to avoid the positioning seat 1 from separating from the pull-out cavity 20.

[0044] The pressing roller 4 is installed on the base 2 and above the positioning seat 1. Specifically, the pressing roller 4 generally comprises a roller body 40 and a roller shaft 41. The roller body 40 is generally made of plastic material in the shape of a cylinder, and its length should be greater than the width of the mobile phone. The roller shaft 41 is a metal shaft passing through the roller body 40. The base 1 is provided with a pressing roller seat, and the pressing roller 4 is installed on the pressing roller seat. Specifically, the pressing roller seat is a pair of upwardly protruding ear plates 21 formed on the base 2 near the opening end of the pulling cavity 20, and the opposite inner side surfaces of the ear plates 21 are provided with shaft holes. The two ends of the roller shaft 41 are rotatably installed in the shaft holes of the two ear plates 21.

[0045] The outer side surfaces of the ear plates 21 are respectively provided with pin shafts 211, which can be used to install a cover body.

[0046] For better illustration, the present application establishes an XY coordinate system in 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 direction of the width W and the direction of the length H of the mobile phone 5 respectively. The axis L of the pressing roller 4 of the present application is not parallel to the transverse direction (X axis) of the positioning cavity 10, and the included angle between them is 3-20°. Or it can also be said that the axis L of the pressing roller 4 of the present application is not perpendicular to the longitudinal direction (Y axis) of the positioning cavity 10, and the included angle between them is 3-20°.

[0047] In order to realize that the axis L of the pressing roller 4 is not parallel to the transverse direction (X axis) of the positioning cavity 10, the following structure is adopted in the first embodiment: the positioning cavity 10 is still set in the same way as the existing product, and the pressing roller 4 is installed on the base 2 relative to the positioning cavity 10, that is, the axis L of the pressing roller 4 is not perpendicular to the sliding direction F of the positioning seat 1 along the base 2; the transverse direction (X axis) of the positioning cavity 10 is perpendicular to the sliding direction F of the positioning seat 1 along the base 2, or it can also be said that the longitudinal direction (Y axis) of the positioning cavity 10 is parallel to the sliding direction F of the positioning seat 1 along the base 2.

[0048] In combination with Fig. 9, in use of the first embodiment, the mobile phone 5 is placed in the positioning cavity 10 of the positioning seat 1, and the protective film 6 is suspended and positioned above the positioning cavity 10 by the positioning portion 13 and the displacement limiting piece 14. Under the action of the external force of the user pulling the handle portion 11, the positioning seat 1 slides along the base 2, and the pressing roller 4 moves in the direction F opposite to the sliding direction. The positioning seat 1 is pulled out along the opening end of the pulling cavity 20 under the action of the external force. In the process of moving the positioning seat 1 relative to the base 2, the pressing roller 4 moves relative to the positioning seat 1, that is, the pressing roller 4 moves relative to the mobile phone 5 from the starting end to the end of the mobile phone 5 in the positioning cavity 10, and rolls and presses the protective film above the mobile phone at the same time. Since the pressing roller 4 is inclined relative to the positioning cavity 10 (that is, the axis L of the pressing roller 4 is not parallel to the transverse direction of the positioning cavity 10), the pressing roller 4 will first roll and press the screen of the mobile phone 5 from the corner position on the right side of the upper side of the mobile phone 5, and then gradually roll and press downward to the corner position on the left side of the lower side of the mobile phone 5. If bubbles are formed in the protective film 6 during the rolling and pressing process, the bubbles will be gradually extruded to the corner position on the left side of the lower side of the mobile phone 5 by the pressing roller 4. As the pressing roller 4 continuously moves downward relative to the mobile phone 5, the area between the protective film 6 and the screen of the mobile phone 5 which is not rolled and pressed by the pressing roller 4 becomes smaller and smaller, and the small area cannot form a space to accommodate bubbles. Under the continuous extrusion of the pressing roller 4, the bubbles are completely discharged from the corner position on the left side, and finally the adhesion is achieved.

[0049] The improvement of the utility model lies in: when pasting the film, the end position of the relative movement of the pressing roller 4 is limited, that is, in the state that the pressing roller 4 and the positioning seat 1 move relative to each other to the end position, the pressing roller 4 does not completely leave above the positioning cavity 10, that is, in this end position state, at least part of the pressing roller 4 is pressed on the corner position of the mobile phone 5. In combination with Fig. 9, in the state that the pressing roller 4 moves relative to the end of the positioning cavity 10, the displacement limiting piece blocks the pressing roller 4. At this time, in this state, the pressing roller 4 does not completely leave above the mobile phone, and at least part of the pressing roller 4 is pressed on the corner position of the mobile phone, that is, there is an area S on the surface of the mobile phone which is not pressed.

[0050] For the displacement limiting piece, in the first embodiment, the lower positioning portion 14 is directly used as the displacement limiting piece. The lower positioning portion 14 itself is used for positioning the protective film 6, and is usually integrally formed on the positioning seat 1 and is higher than the positioning cavity 10, so that the protective film 6 can be suspended above the positioning cavity 10. Therefore, as long as the position of the lower positioning portion 14 is adjusted, the end position can be determined by the blocking of the lower positioning portion 14 to the pressing roller 4, so that the area S which is not pressed on the surface of the mobile phone is formed.

[0051] The utility model discloses after the above-mentioned improvement, when the mobile phone 5 of finishing pasting the film is taken out from the positioning cavity 10, need to reset the positioning seat 1 again, at this moment can take down the positioning film piece in the protective film 6, again take out the mobile phone 5 from the positioning cavity 10.In the process of positioning seat 1 from the terminal position return starting position, because the compression roller 4 is not completely separated from the upper side of mobile phone 5.In the corner position of the end of mobile phone 5, there is an un-pressing area S, when the compression roller 4 returns, the compression roller 4 is still above the protective film 6, and it will not form an extrusion effect on the edge of the protective film 6, and will not damage the protective film 6.At the same time, because the un-pressing area S only exists in the corner position of the end of mobile phone 5, the area of this region is very small, and the protective film 6 can be automatically attached to the mobile phone 5 by using the elasticity of the protective film 6, even if a bubble appears, it can be smoothed by a finger.

[0052] In order to make the un-pressing area S small enough, and ensure that the compression roller 4 is still pressed on the upper side of the mobile phone 5 at this time, in combination with Fig. 9, the width W1 of the un-pressing area S is less than one half of the width W of the mobile phone 5.After testing, the preferred scheme is that the width W1 of the un-pressing area S is less than one third of the width W1 of the mobile phone 5.

[0053] As shown in Fig. 10, this is the second embodiment of the utility model, which is different from the first embodiment in that the base 2 is pivotally connected with the cover 3.Combined with the description of the first embodiment, the outer side of the ear plate 21 is provided with a pin shaft 211, which cooperates with the pin hole on the cover 3 to form a shaft hole cooperation.The cover 3 can be covered on the upper side of the base 2, so as to completely cover the positioning seat 1, thereby protecting the mobile phone and the protective film.When the cover 3 is covered on the base 2, the cover 3 clamps the ear plate 21 of the compression roller seat, so as to form a clamping force on the compression roller 4.Because the utility model adopts the inclined compression roller 4, the compression roller 4 will be subjected to pressure from the axial direction during the pressing process, and the ear plate 21 may be deformed outwardly under the action of the pressure, which leads to the disconnection of the compression roller 4 from the ear plate.The clamping action of the cover 3 on the ear plate 21 can avoid the occurrence of this situation.

[0054] In addition, the compression roller 4 can also be directly connected to the cover 3, and the cover 3 is installed on the base 2.

[0055] As shown in Fig. 11, this is the third embodiment of the film pasting device of the utility model, which is different from the first embodiment in that, in the third embodiment, the lower positioning part 14 is not directly used as a displacement limiting piece, but a separate protruding plate 141 is directly arranged on the positioning seat 1 as a displacement limiting piece.The protruding plate 141 blocks the compression roller 4.Specifically, an integrally formed protruding plate 141 is arranged at a position near the lower positioning part 14 at the trailing end of the positioning cavity 10, and the protruding plate 141 is located in front of the lower positioning part 14.

[0056] In combination with Fig. 12, the reason why this design is adopted in the third embodiment is that, in the process of pasting the film, in order to facilitate the rolling of the pressing roller, the positioning film in the protective film 6 usually has sufficient length, so that a sufficient distance is needed between the upper positioning part 13 and the lower positioning part 14 for positioning the protective film 6, and usually the lower positioning part 14 is arranged at a position far from the positioning cavity 10, so that the lower positioning part 14 cannot be directly used to block the pressing roller 4 to form the un-pressing area S. Therefore, the third embodiment sets a raised plate 141 as a displacement limiting part to block the pressing roller 4 to form the un-pressing area S.

[0057] Of course, for the first to third embodiments, the displacement limiting part is not limited to the lower positioning part 14 or the raised plate 141, and the following structures can also be adopted: the relative movement of the pressing roller 4 to the positioning seat 1 to the end position is limited by the length of the guide rail structure between the positioning seat 1 and the pulling cavity 20, and specifically, the length of the guide rail 23 is arranged to determine the end position. Alternatively, a blocking block is directly arranged on the guide rail 23 to determine the end position of the guide rail 23 along the sliding groove 15. Of course, a blocking block can also be arranged at other positions between the positioning seat 1 and the base 2 to block the relative sliding to determine the end position, and finally only the state of the end position is needed, at least part of the pressing roller 4 is pressed to the corner position of the mobile phone 5.

[0058] As shown in Figs. 13 to 14, this is the fourth embodiment of the film pasting device of the utility model. The fourth embodiment adopts mode two, that is, the positioning seat 1 is stationary and the pressing roller 4 slides relative to the positioning seat 1. The film pasting device of the fourth embodiment comprises a positioning seat 1, a sliding seat 400 and a pressing roller 4.

[0059] The same as the first embodiment, the positioning seat 1 of the fourth embodiment is provided with a positioning cavity 10 for accommodating and positioning the mobile phone 5, and the shape of the positioning cavity 10 matches the peripheral contour of the mobile phone 4 to be pasted with the film. In use, the mobile phone 5 is placed in the positioning cavity 10 and positioned by the positioning cavity 10. The upper positioning part 13 and the lower positioning part 14 are arranged on the front and rear outer side areas of the positioning cavity 10, and are used for positioning the protective film. The protective film for pasting is suspended above the positioning cavity 10 by the positioning part 13 and the displacement limiting part 14, and waits to be pressed by the pressing roller 4.

[0060] The sliding seat 400 is slidably installed on the positioning seat 1, and the pressing roller 4 is rotatably installed on the sliding seat 400, and the pressing roller 4 is driven by the sliding seat 400 to slide along the longitudinal direction of the positioning seat 1.

[0061] The sliding seat 2 is slidably installed on the positioning seat 1, which adopts the structure that: the positioning seat 1 is provided with sliding rails or sliding grooves on two sides; and the sliding seat 2 is provided with sliding grooves or sliding blocks on two sides which are matched with the sliding rails or sliding grooves on the two sides of the positioning seat. For the fourth embodiment, the specific structure is that: the sliding seat 400 is provided with two ear plates 42 on two sides, and the opposite inner walls of the two ear plates 42 are respectively provided with sliding blocks 421. When installed, the spacing between the two ear plates 42 of the sliding seat 400 is just corresponding to the width of the positioning seat 1, the positioning seat 1 is clamped by the two ear plates 42 of the sliding seat 400, and the sliding blocks 421 just fall into the sliding grooves 110 opened on the side walls of the positioning seat and are matched with the sliding grooves 110 to realize the sliding of the sliding seat 400 along the positioning seat 1.

[0062] In order to keep the stability of operation, two sliding blocks 421 are arranged on each ear plate 42, an entrance 111 is opened at the end of the sliding groove 110, and the sliding blocks 421 enter the sliding groove 110 from the entrance 111.

[0063] The pressing roller 4 is installed between the two ear plates 42, and when the sliding seat 400 is installed on the positioning seat 1, the pressing roller 4 is located above the positioning seat 1. Similarly, as shown in Figure 13, the pressing roller 3 is in an inclined state.

[0064] Compared with the first embodiment, the fourth embodiment also inclines the pressing roller 4. The displacement limiting piece in the fourth embodiment is arranged on the positioning seat 1 in the same way as the third embodiment, and the protruding plate 141 is arranged as the displacement limiting piece to form a barrier to the pressing roller 4. Similarly, the protruding plate 141 is located in front of the lower positioning part 14.

[0065] As shown in Figure 15, this is the fifth embodiment of the utility model, which is different from the fourth embodiment in that: the positioning seat 1 is formed with side plates on opposite two sides, and the inner walls of the side plates are provided with sliding grooves; and the sliding seat 400 is integrally formed with a push plate 43 which is convenient for force application. In addition, for the displacement limiting piece, the fifth embodiment adopts the scheme of the first embodiment, that is, directly using the lower positioning part 14 as the displacement limiting piece to form a barrier to the pressing roller 4.

[0066] As shown in Figure 16, this is the sixth embodiment of the utility model, which is different from the fifth embodiment in that: the positioning seat 1 is provided with sliding rails on opposite two sides; and the sliding seat 400 comprises a sliding groove which is provided on the upper side and matched with the sliding rails. In order to facilitate the pushing of the sliding seat 400, a pull plate 44 which is convenient for force application is pivoted above the sliding seat 400.

[0067] The working principles of the fifth and sixth embodiments are the same as those of the fourth embodiment, and will not be repeated here.

[0068] Similarly, for the fourth to the sixth embodiments, the displacement limiting member is not limited to the lower positioning portion 14 or the protruding plate 141, and can also be implemented by using other structures as described above. For example, the length of the sliding groove 110 is set to limit the sliding distance of the sliding block 421 along the sliding groove 110, thereby determining the end position. Alternatively, a blocking block is arranged in the sliding groove 110 to determine the end position. Alternatively, a blocking block is arranged at other positions between the positioning seat 1 and the sliding seat 400 to block the sliding of the sliding seat 400, thereby determining the end position. Finally, it is only required that at least part of the pressing roller 4 is pressed against the corner position of the mobile phone 5 in the end position.

[0069] Of course, the above only describes specific embodiments of the present application, and is not intended to limit the scope of the present application. Any equivalent changes or modifications made to the structure, features and principles described in the patent application of the present application shall be included in the patent application of the present application.

Claims

1. An improved inclined nip roller laminator, the laminator comprising: The application relates to a mobile phone protective film sticking device, which comprises a positioning seat and a pressing roller with a length greater than the width of the mobile phone and located above the positioning seat, wherein a positioning cavity for accommodating and positioning the mobile phone is arranged on the positioning seat, the pressing roller is relatively moved from the starting end to the end of the positioning cavity, and the protective film positioned above the mobile phone is pressed and combined during the relative movement. 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, and the axis of the pressing roller is not parallel to the transverse direction of the positioning cavity. During the film sticking, the pressing roller is relatively moved from the starting end to the end of the positioning cavity, and the pressing roller does not completely leave the above of the positioning cavity when the pressing roller and the positioning seat are relatively moved to the end position, that is, at least part of the pressing roller is pressed and combined at the corner position of the mobile phone.

2. The improved inclined compression roller type film laminator according to claim 1, characterized in that: When the pressing roller is relatively moved from the starting end to the end, the pressing area of the pressing roller and the mobile phone is relatively moved from the first corner of the starting end of the mobile phone to the second corner of the diagonal line position; when the pressing roller is relatively moved to the end position, the second corner position of the mobile phone is not pressed and combined by the pressing roller to form an uncombined area, and the width of the uncombined area is less than one half of the width of the mobile phone.

3. The improved inclined compression roller laminator according to claim 2, wherein: The width of the uncombined area is less than one third of the width of the mobile phone.

4. The improved inclined compression roller laminator according to claim 1, wherein: The axis of the pressing roller is not perpendicular to the relative sliding direction of the positioning seat; the transverse direction of the positioning cavity is perpendicular to the relative sliding direction of the positioning seat, and the included angle between the axis of the pressing roller and the transverse direction of the positioning cavity is 3-20 degrees.

5. The improved inclined compression roller laminator as claimed in claim 1 wherein: The positioning seat can be pulled and installed on a base, the base comprises a pulling cavity with an opening at one end for accommodating the positioning seat, the positioning seat is installed in the pulling cavity, and a guide rail structure for pulling is arranged between the positioning seat and the pulling cavity; a pressing roller seat is arranged on the base, the pressing roller is installed on the pressing roller seat, and when the positioning seat is pulled out along the opening end of the pulling cavity, the mobile phone placed in the positioning cavity and the protective film positioned on the surface of the mobile phone are moved from below the pressing roller, the protective film positioned on the mobile phone is rolled and pressed by the pressing roller, and the attachment of the protective film is completed.

6. The improved inclined compression roller laminator according to claim 5, wherein: A cover body is pivotally connected to the base, and the cover body clamps the pressing roller seat when the cover body is closed on the base.

7. The improved inclined compression roller laminator as claimed in claim 1 wherein: The pressing roller is slidably installed on the positioning seat through a sliding seat, sliding rails or sliding grooves are arranged on the two sides of the positioning seat, sliding grooves or sliding blocks are arranged on the two sides of the sliding seat and matched with the sliding rails or the sliding grooves on the two sides of the positioning seat, and when the sliding seat is pushed to slide, the sliding seat drives the pressing roller to move from above the protective film and roll and press the protective film positioned on the mobile phone, thereby completing the attachment of the protective film.

8. The improved inclined compression roller laminator according to claim 5, wherein: The relative movement of the pressing roller and the positioning seat to the end position is limited by the length of the guide rail structure between the positioning seat and the pulling cavity or by a displacement limiting piece arranged in the guide rail structure.

9. The improved inclined compression roller laminator as claimed in claim 7 wherein: The relative movement of the pressing roller and the positioning seat to the end position is limited by the length of the sliding rail or the sliding groove between the positioning seat and the sliding seat or by a displacement limiting piece arranged in the sliding rail or the sliding groove.

10. The improved inclined press roller type film laminating device according to any one of claims 1 to 7, wherein: The end position of the relative movement of the pressing roller and the positioning seat is limited by a displacement limiting piece integrally arranged on the positioning seat; the displacement limiting piece is higher than the positioning cavity and interferes with the pressing roller.

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