Improved inclined compression roller type film sticking device

Abstract

The utility model discloses an improved inclined compression roller type film pasting device which comprises a positioning seat and a compression roller located above the positioning seat, the compression roller moves relatively from the starting end of a positioning cavity to the tail end of the positioning cavity and presses a protective film located above a mobile phone while moving relatively, and the axis of the compression roller is not parallel to the transverse direction of the positioning cavity; a displacement limiting piece higher than the positioning cavity is arranged on the positioning seat; when the pressing roller relatively moves to the tail end of the positioning cavity, the displacement limiting piece blocks the pressing roller, and in the state, the pressing roller is not completely separated from the upper portion of the mobile phone, and at least part of the pressing roller is pressed to the corner position of the mobile phone. The pressing roller cannot completely press the surface of a mobile phone, a non-press-fit area exists at the corner position of the tail end of the mobile phone through blocking of the displacement limiting piece on the pressing roller, when the pressing roller returns, the pressing roller is located above a protective film, the pressing roller cannot extrude the edge of the protective film, and damage to the protective film is avoided.

Description

Technical field:

[0001] The utility model relates to the technical field of mobile phone film pasting, in particular to an improved inclined pressure roller type film pasting device. Background technology:

[0002] See Figure 1 、 Figure 2 This is a schematic diagram of a pull-out film applicator. It includes 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 pulled out and mounted in a pull-out cavity 920 of the base 92. The base 92 is provided with pressure roller lugs 94, and the pressure roller 93 is mounted between two pressure roller lugs 94. The protective film 90 for the mobile phone includes a positioning film on the upper layer and a protective film body on the lower layer. The front and rear ends of the positioning film extend outward to form positioning connectors, which connect to the positioning portion on the positioning seat 91, thereby positioning the protective film 90 above the screen of the mobile phone 95.

[0003] When the pull-out film applicator is in operation, 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 under the pressure roller 93 relative to the positioning seat 91. The pressure roller 93 rolls the protective film 90 covering the mobile phone 95 to complete the attachment of the protective film. As can be seen from this, in the current pull-out film applicator, the axis of the pressure roller 93 and the movement direction of the positioning seat 91 are mutually perpendicular.

[0004] See Figure 3 As shown, at the beginning of the film application (before the film application is half completed), the protective film 90 and the mobile phone screen can basically achieve perfect adhesion, and no bubbles are generated in the adhesion area. However, as the film application enters the second half, small bubbles 900 will appear in the middle area near the end of the mobile phone film. The reason for this is that: under the pressure of the pressure roller 93, the end edge of the protective film 90 is adhered to the screen of the mobile phone 95 in advance, resulting in the small bubbles 900 being unable to be squeezed out by the pressure roller 93. At the same time, since the pressure roller 93 will produce slight deformation in the axial direction during the rolling process, the downward pressure generated by the middle area of the pressure roller 93 is 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. And this undesirable situation will become more and more obvious with the repeated use of the film applicator, and the defective rate of film application will also increase significantly.

[0005] In response to the above situation, the applicant has filed a Chinese utility model patent application for "An inclined pull-out film applicator," with patent application number: 202421035675.5. The technical solution employed is as follows: the applicator employs an inclined rolling mechanism, whereby the axis of the roller is designed to be non-parallel to the transverse direction of the positioning cavity. This mechanism allows the roller to first roll the screen from one corner of the upper side of the phone, then gradually rolls downward to the other corner of the lower diagonal side of the phone. Even if bubbles form in the protective film during the rolling process, these bubbles are gradually squeezed by the roller to the corner of the lower side of the phone. Ultimately, all bubbles are squeezed to the corner of the lower side of the phone. As the roller continues to move downward relative to the phone, the area between the protective film and the phone that is not rolled by the roller becomes smaller and smaller. This narrow area is unable to form any space to accommodate bubbles. Under the continuous squeezing action of the roller, all bubbles are eventually expelled from the corner, leaving no bubbles, ultimately achieving a perfect fit.

[0006] The applicant produced a film applicator product based on the above technical solution. However, the following problem occurred during the test process after actual production: when the pressure roller was running relative to the mobile phone, it first rolled the mobile phone screen from a corner position on the upper side of the mobile phone, and then gradually rolled it down to the other corner position on the diagonal position on the lower side of the mobile phone. The original design was that the pressure roller should completely press the top of the mobile phone, that is, when the relative movement stopped, the pressure roller should have completed the pressing of the other corner position on the diagonal position on the lower side of the mobile phone. Only in this way can it be ensured that the protective film is fully fitted to the surface of the mobile phone without any missing areas. However, during the actual test, the reference Figure 1 、 Figure 2 As shown, subject to the structural limitations of this pull-out film applicator, the positioning film on the protective film 90 is still restricted on the positioning seat 91 of the film applicator, and the mobile phone 95 after the film is applied cannot be taken out from the positioning cavity 910 of the positioning seat. Figure 1 state, at which time the pressure roller 40 is separated from the protective film 90), and the positioning film in the protective film 90 is removed to realize taking out the mobile phone 95. During the resetting process, the pressure roller needs to return again from the corner at the diagonal position of the lower side of the mobile phone. At this time, the pressure roller will form an extrusion effect on the edge of the protective film at the corner position. Under this extrusion effect, the protective film that has been attached to the mobile phone may be warped, resulting in bubbles at the corner position. In extreme cases, the protective film at the corner position may bend due to warping, causing the protective film to be damaged and unusable. Although the frequency of this undesirable situation is not high, in order to prevent this situation, the inventors have proposed the following improvement plan after continuous improvement. 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 improved inclined pressure roller type film applicator to avoid bubbles forming at the corners of the protective film due to the return of the pressure roller during the film applicator process.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions: an improved inclined pressure roller type film applicator, which includes: a positioning seat and a pressure roller located above the positioning seat and having a length greater than the width of a mobile phone. The positioning seat is provided with a positioning cavity for accommodating and positioning the mobile phone. The pressure roller moves relatively from the starting end to the end end of the positioning cavity, and presses the protective film positioned above the mobile phone while moving relative to each other. 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; when applying the film, the pressure roller moves relatively from the starting end to the end end of the positioning cavity. When the pressure roller and the positioning seat move relatively to the end position, the pressure roller does not completely detach from the top of the positioning cavity, that is, in this end position state, at least part of the pressure roller is pressed on the corner position of the mobile phone.

[0009] Furthermore, in the above technical solution, when the pressure roller moves relative to each other from the starting end to the ending end, the pressing area of the pressure roller and the mobile phone moves relative to each other from the first corner at the starting end of the mobile phone to the second corner at the diagonal position; when the pressure roller moves relative to the end position, 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 half of the width of the mobile phone.

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

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

[0012] Furthermore, in the above technical solution, the positioning seat can be pulled out and installed on a base, which includes a pull-out cavity with an opening at one end for accommodating the positioning seat, the positioning seat is installed in the pull-out cavity, and a guide rail structure for pulling is provided between the positioning seat and the pull-out cavity; a pressure roller seat is provided on the base, and the pressure roller is installed on the pressure roller seat. When the positioning seat is pulled out along the open end of the pull-out cavity, the positioning seat drives the mobile phone placed in the positioning cavity and the protective film positioned on the surface of the mobile phone to move from under the pressure roller, and the pressure roller rolls the protective film positioned on the mobile phone to complete the attachment of the protective film.

[0013] Furthermore, in the above technical solution, a cover is pivotally connected to the base, and when the cover is closed on the base, the cover clamps the pressure roller seat.

[0014] Furthermore, in the above technical solution, the pressure roller is slidably mounted on the positioning seat through a sliding seat, and slide rails or slide grooves are provided on both sides of the positioning seat; slide grooves or sliders are provided on both sides of the sliding seat to cooperate with the slide rails or slide grooves provided on both sides of the positioning seat; when the sliding seat is pushed to slide, the sliding seat drives the pressure roller to move from above the protective film, and rolls the protective film positioned on the mobile phone to complete the attachment of the protective film.

[0015] Furthermore, in the above technical solution, 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 drawing cavity, or by a displacement limiter provided in the guide rail structure.

[0016] Furthermore, in the above technical solution, the relative movement of the pressure roller and the positioning seat to the end position is limited by the length of the slide rail or slide groove between the positioning seat and the sliding seat, or by a displacement limiter provided in the slide rail or slide groove.

[0017] Furthermore, in the above technical solution, the terminal position of the relative movement between the pressure roller and the positioning seat is limited by a displacement limiter integrally provided on the positioning seat; the displacement limiter is higher than the positioning cavity and interferes with the pressure roller.

[0018] After adopting the above-mentioned technical solution, the present invention overcomes the problems of the existing inclined pressure roller type film applicator that may cause bubbles, warping, damage and other problems in the corners of the protective film during the return process. This is because the pressure roller in the present invention does not press the entire surface of the mobile phone. During the film laminating process, the end position of the relative movement of the pressure roller and the positioning seat is limited, and in the end position state, there is an unpressed area at the corner position of the rear end of the mobile phone, so that the pressure roller will not completely separate from the top of the mobile phone. In this way, when the pressure roller returns, it is above the protective film and will not form an extrusion effect on the edge of the protective film. At the same time, since the unpressed area only exists at the corner position of the rear end of the mobile phone, the area is very small, and the elasticity of the protective film itself can be used to automatically complete the process of laminating with the mobile phone.

[0019] After adopting this technical solution, the utility model has been tested more than 1,000 times, and there has not been a single case of bubbles, warping or damage to the protective film caused by the return of the pressure roller. Description of the drawings:

[0020] Figure 1 This is a three-dimensional diagram of the existing pull-out film applicator

[0021] Figure 2It is a three-dimensional diagram of the film-applying state of the existing pull-out film applicator;

[0022] Figure 3 This is a schematic diagram of the film laminating process of an existing pull-out film laminator;

[0023] Figure 4 This is the design principle diagram of the inclined pressure roller film applicator;

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

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

[0026] Figure 7 This is a three-dimensional diagram of the first embodiment of the present invention in the pulled-out state;

[0027] Figure 8 It is a three-dimensional diagram of the positioning seat in the first embodiment of the utility model;

[0028] Figure 9 This is a schematic diagram of the film application principle of the first embodiment of the present invention;

[0029] Figure 10 It is a three-dimensional diagram of the second embodiment of the present utility model;

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

[0031] Figure 12 This is a schematic diagram of the film application principle of the third embodiment of the present invention;

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

[0033] Figure 14 This is a three-dimensional exploded view of the fourth embodiment of the present utility model;

[0034] Figure 15 It is a three-dimensional diagram of the fifth embodiment of the present utility model;

[0035] Figure 16 It is a three-dimensional diagram of the sixth embodiment of the present utility model. Specific implementation method:

[0036] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0037] Combine Figure 4As shown, the present invention is an improved inclined roller-type film applicator, which uses an inclined roller 4. That is, the present invention designs the axis L of the roller 4 to be non-parallel to the transverse direction of the positioning cavity. In this way, under the action of force F, the roller 4 first rolls the phone screen from one corner of the upper side of the phone, and then gradually rolls down to the other corner of the lower side of the phone. Even if bubbles form in the protective film during the rolling process, these bubbles will be gradually squeezed by the roller to the corner of the lower side of the phone. Under the continuous squeezing action of the roller 4, the bubbles are finally completely expelled from the corner, and no bubbles remain, ultimately achieving a perfect lamination effect.

[0038] The relative sliding between the pressure roller and the positioning seat in the present invention can be achieved in the following two ways: Method 1: the pressure roller is stationary and the positioning seat slides relative to the pressure roller; Method 2: the positioning seat is stationary and the pressure roller slides along the positioning seat. The specific implementation methods will be described in detail later.

[0039] See Figures 5 to 9 As shown, this is the first embodiment of the film applicator of the present invention. This first embodiment adopts the above-mentioned method 1, that is, the pressure roller 4 is stationary, and the positioning seat 1 slides relative to the pressure roller 4. The film applicator of this first embodiment includes: a positioning seat 1, a base 2 and a pressure roller 4.

[0040] The positioning seat 1 is provided with a positioning cavity 10 for accommodating and positioning a mobile phone. The shape of the positioning cavity 10 matches the outer contour of the mobile phone to which the film is to be applied. During use, the mobile phone is placed in the positioning cavity 10 and positioned by the positioning cavity 10. An upper positioning portion 13 and a lower positioning portion 14 are respectively provided in the front and rear outer areas of the positioning cavity 10. The upper positioning portion 13 and the lower positioning portion 14 are used to position the positioning film in the protective film. The protective film for film application is suspended above the positioning cavity 10 by the upper positioning portion 13 and the lower positioning portion 14, waiting for the pressing roller 4 to press it.

[0041] The base 2 is used to support 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 drawer cavity 20 that accommodates the positioning seat 1 and is open at one end. The positioning seat 1 is installed in the drawer cavity 20, and a guide rail structure for drawing is provided between the positioning seat 1 and the drawer cavity 20. The positioning seat 1 can be withdrawn along the open end of the drawer cavity 20 under the action of an external force.

[0042] As a preferred embodiment, in order to facilitate the user to apply force, the positioning seat 1 is provided with a handle portion 11 for pulling on one side adjacent to the opening end of the pulling cavity 20 .

[0043] As a preferred embodiment, the guide rail structure between the positioning seat 1 and the drawer cavity 20 can adopt the following structure: two parallel guide rails 23 are provided on the surface of the drawer cavity 20, and a slide groove 15 is provided on the bottom surface of the positioning seat 1 to cooperate with the guide rails 23. The slide groove 15 cooperates with the guide rails 23 to achieve the sliding cooperation between the positioning seat 1 and the drawer cavity 20. In order to improve the sliding accuracy of the positioning seat 1 along the base 2, a limit plate 22 is formed at the upper edge of the drawer cavity 20. The function of the limit plate 22 is to confine the positioning seat 1 in the drawer cavity 20 and prevent the positioning seat 1 from escaping from the drawer cavity 20.

[0044] The pressure roller 4 is installed on the base 2 and is located above the positioning seat 1. Specifically, the pressure roller 4 usually includes: a roller body 40 and a roller shaft 41. The roller body 40 is usually made of a cylindrical plastic material, and its length should be greater than the width of the mobile phone. The roller shaft 41 is a metal shaft that passes through the roller body 40. A pressure roller seat is provided on the base 1, and the pressure roller 4 is installed on the pressure roller seat. Specifically, the pressure roller seat is formed with a pair of upwardly protruding ear plates 21 at the position of the base 2 near the open end of the pulling cavity 20, and the opposite inner sides of the ear plates 21 are provided with shaft holes, and the two ends of the roller shaft 41 can be rotatably installed in the shaft holes on the two ear plates 21 respectively.

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

[0046] For better explanation, combine Figure 4 、 Figure 6 As shown, the present invention establishes an XY coordinate system based on the transverse direction and 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 5, respectively. The axis L of the pressure roller 4 of the present invention is not parallel to the transverse direction (X-axis) of the positioning cavity 10, and the angle formed between the two is 3 to 20 degrees. In other words, the axis L of the pressure roller 4 of the present invention is not perpendicular to the longitudinal direction (Y-axis) of the positioning cavity 10, and the angle formed between the two is 3 to 20 degrees.

[0047] In order to achieve that the axis L of the pressure roller 4 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 still set in the same manner as the existing products, and the pressure roller 4 is installed on the base 2 at an angle relative to the positioning cavity 10, that is, the axis L of the pressure 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 in other words, 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] Combine Figure 9 As shown, when the first embodiment is used, 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 limiter 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 relative sliding direction of the pressure roller 4 is F. Under the action of this external force, the positioning seat 1 is pulled out along the open end of the pull-out cavity 20. During the movement of the positioning seat 1 relative to the base 2, the pressure roller 4 moves relative to the positioning seat 1, that is, the pressure roller 4 moves relative to the positioning seat 1, that is, the pressure roller 4 moves relative to the mobile phone 5 from the starting end to the end end in the positioning cavity 10, and while moving relative to each other, it rolls the protective film covering the top of the mobile phone. Because the pressure roller 4 is tilted relative to the positioning cavity 10 (that is, the axis L of the pressure roller 4 is not parallel to the transverse direction of the positioning cavity 10), the pressure roller 4 will first start rolling the screen of the mobile phone 5 from the right corner of the upper side of the mobile phone 5, and then gradually roll down to the left corner of the diagonal position of the lower side of the mobile phone 5. If bubbles are formed in the protective film 6 during the rolling process, these bubbles will be gradually squeezed by the pressing roller 4 to the left corner of the lower side of the mobile phone 5. As the pressing roller 4 continues to descend relative to the mobile phone 5, the area between the protective film and the screen of the mobile phone 5 that is not rolled by the pressing roller 4 becomes smaller and smaller. The narrow area cannot form a space to accommodate bubbles. Under the continuous squeezing action of the pressing roller 4, all the bubbles are discharged from the left corner, and finally the bonding is achieved.

[0049] The improvement of the present invention over the prior art is that: when applying the film, the end position of the relative movement of the pressure roller 4 is limited, that is, when the pressure roller 4 and the positioning seat 1 move relative to each other to the end position, the pressure roller 4 does not completely leave the top of the positioning cavity 10, that is, in this end position state, at least part of the pressure roller 4 is pressed against the corner of the mobile phone 5. Figure 9 As shown, when the pressure roller 4 moves relative to the rear end of the positioning cavity 10, a displacement stopper blocks the pressure roller 4. At this time, and in this state, the pressure roller 4 has not completely left the top of the mobile phone, and at least a portion of the pressure roller 4 is pressed against the corner of the mobile phone, that is, there is an unpressed area S on the surface of the mobile phone.

[0050] In this first embodiment, the displacement limiter is directly implemented using the lower positioning portion 14. The lower positioning portion 14 itself is used to position the protective film 6 and is typically integrally formed on the positioning base 1 and positioned higher than the positioning cavity 10, allowing the protective film 6 to be suspended above the positioning cavity 10. Therefore, by properly adjusting the position of the lower positioning portion 14, the lower positioning portion 14 can block the pressing roller 4 to determine the end point, thereby forming the unpressed area S on the surface of the mobile phone.

[0051] After the above improvements, when the mobile phone 5 with the film attached is to be taken out from the positioning cavity 10, the positioning seat 1 needs to be reset again. Only then can the positioning film in the protective film 6 be removed, and the mobile phone 5 can be taken out from the positioning cavity 10. In the process of the positioning seat 1 returning from the end position to the starting position, the pressure roller 4 is not completely separated from the top of the mobile phone. There is an unpressed area S at the corner position of the rear end of the mobile phone 5. When the pressure roller 4 returns, the pressure roller 4 is still above the protective film 6. 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, since the unpressed area S only exists at the corner position of the rear end of the mobile phone 5, the area of this area is very small. The elasticity of the protective film 6 itself can automatically complete the fitting with the mobile phone 5. Even if bubbles appear, they can be gently smoothed with fingers.

[0052] In order to make the unpressed area S small enough and ensure that the pressing roller 4 is still pressed on the mobile phone 5, the Figure 9 As shown, the width W1 of the unlaminated area S is less than half of the width W of the mobile phone 5 . After testing, a better solution is: the width W1 of the unlaminated area S is less than one-third of the width W1 of the mobile phone 5 .

[0053] See Figure 10 As shown, this is the second embodiment of the present invention, which differs from the first embodiment in that: in this second embodiment, a cover body 3 is pivotally connected to the base 2. In combination with the first embodiment, the outer side surfaces of the ear plates 21 are respectively provided with pin shafts 211, and the pin shafts 211 cooperate with the pin holes on the cover body 3 to form an axis-hole fit. The cover body 3 can be covered on the top of the base 2, thereby completely covering the positioning seat 1, thus providing protection for the mobile phone and the protective film. When the cover body 3 is covered on the base 2, the cover body 3 clamps the ear plates 21 of the pressure roller seat, thus forming a clamping force on the pressure roller 4. Since the present invention adopts an inclined pressure roller 4, the pressure roller 4 will be subjected to axial pressure during the pressing process. Under the action of this pressure, the ear plates 21 may deform outward, causing the pressure roller 4 to detach from the ear plates. After the cover body 3 clamps the ear plates 21, this situation can be avoided.

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

[0055] See Figure 11As shown, this is the third embodiment of the film applicator of the present invention. Unlike the first embodiment, in this third embodiment, instead of directly using the lower positioning portion 14 as a displacement limiter, a separate raised plate 141 is provided directly on the positioning seat 1 as a displacement limiter. This raised plate 141 blocks the pressure roller 4. Specifically, the raised plate 141 is integrally formed at the rear end of the outer edge of the positioning cavity 10, near the lower positioning portion 14, and is located in front of the lower positioning portion 14.

[0056] Combine Figure 12 As shown, this design is adopted in the third embodiment because, during the film lamination process, the positioning film in the protective film 6 is usually long enough to facilitate the rolling of the pressure roller. Therefore, a sufficient distance needs to be separated between the upper positioning portion 13 and the lower positioning portion 14 used to position the protective film 6. Usually, the lower positioning portion 14 is located far away from the positioning cavity 10. As a result, the lower positioning portion 14 cannot be directly used to block the pressure roller 4 from forming the unpressed area S. Therefore, the third embodiment provides a raised plate 141 as a displacement limiter to block the pressure roller 4 and form the unpressed area S.

[0057] Of course, for Examples 1 to 3, the displacement limiter is not limited to the lower positioning portion 14 or the raised plate 141, and can also be implemented by the following structure: the relative movement of the pressure roller 4 and 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 drawing chamber 20. Specifically, the end position is determined by setting the length of the guide rail 23. Alternatively, a blocking block is directly provided on the guide rail 23 to determine the end position of the guide rail 23 running along the slide 15. Of course, blocking blocks can also be provided at other positions between the positioning seat 1 and the base 2 to block the relative sliding, thereby determining the end position. Ultimately, it is only necessary to achieve that at least part of the pressure roller 4 is pressed against the corner position of the mobile phone 5 in the end position state.

[0058] See Figures 13 and 14 As shown, this is the fourth embodiment of the film applicator of the present invention. This fourth embodiment adopts the second method, that is, the positioning seat 1 is stationary, and the pressure roller 4 slides relative to the positioning seat 1. The film applicator of this second embodiment includes: the positioning seat 1, the sliding seat 400 and the pressure roller 4.

[0059] Similar to 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. The shape of the positioning cavity 10 matches the outer contour of the mobile phone 4 to which the film is to be applied. During use, the mobile phone 5 is placed in the positioning cavity 10 and is positioned by the positioning cavity 10. The upper positioning portion 13 and the lower positioning portion 14 are provided in the front and rear outer areas of the positioning cavity 10. The upper positioning portion 13 and the lower positioning portion 14 are used to position the protective film. The protective film for film application is suspended above the positioning cavity 10 by the positioning portion 13 and the displacement limiter 14, awaiting the pressing of the pressure roller 4.

[0060] The sliding seat 400 can be slidably installed on the positioning seat 1, and the pressure roller 4 can be rotatably installed on the sliding seat 400. The pressure 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 mounted on the positioning seat 1. The structure employed is as follows: rails or grooves are provided on both sides of the positioning seat 1; and grooves or sliders are provided on both sides of the sliding seat 2 to cooperate with the rails or grooves provided on both sides of the positioning seat. In the fourth embodiment, the specific structure employed is as follows: lugs 42 are provided on both sides of the sliding seat 400, and sliders 421 are provided on the opposing inner walls of the two lugs 42. During installation, the spacing between the two lugs 42 of the sliding seat 400 corresponds exactly to the width of the positioning seat 1. The sliding seat 400 clamps the positioning seat 1 via the two lugs 42, and the sliders 421 fit neatly into the grooves 110 provided on the side walls of the positioning seat, cooperating with the grooves 110 to enable the sliding seat 400 to slide along the positioning seat 1.

[0062] In order to maintain stable operation, two sliders 421 are provided on each ear plate 42 . An entrance 111 is provided at the end of the chute 110 , and the sliders 421 enter the chute 110 from the entrance 111 .

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

[0064] Compared to the first embodiment, the fourth embodiment also tilts the pressure roller 4. The displacement limiter in the fourth embodiment uses the same method as the third embodiment, with a raised plate 141 provided on the positioning seat 1 as a displacement limiter to block the pressure roller 4. Similarly, the raised plate 141 is located in front of the lower positioning portion 14.

[0065] See Figure 15As shown, this is the fifth embodiment of the present invention, which differs from the fourth embodiment in that: the positioning seat 1 is formed with side panels on opposite sides, and the inner walls of the side panels are provided with sliding grooves; the sliding seat 400 is integrally formed with a push plate 43 for facilitating force application. In addition, as for the displacement limiter, this fifth embodiment adopts the solution of the first embodiment, that is, directly utilizing the lower positioning portion 14 as the displacement limiter to block the pressure roller 4.

[0066] See Figure 16 As shown, this is the sixth embodiment of the present invention, which differs from the fifth embodiment in that: the positioning seat 1 is provided with slide rails on opposite sides; the sliding seat 400 includes a slide groove provided on the upper portion thereof for cooperating with the slide rails. To facilitate the movement of the sliding seat 400, a pull plate 44 is pivotally connected above the sliding seat 400 for applying force.

[0067] The working principles of the fifth and sixth embodiments are the same as those of the fourth embodiment, and are not described in detail here.

[0068] Similarly, for Examples 4 to 6, the displacement limiter is not limited to the lower positioning portion 14 or the raised plate 141, and can also be implemented using other structures described above. For example, by setting the length of the slide 110, the sliding distance of the slider 421 along the slide 110 is limited, thereby determining the end position. Alternatively, a blocking block is provided in the slide 110 to determine the end position. Alternatively, a blocking block is provided 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. Ultimately, it is only necessary to achieve that in the end position state, at least part of the pressure roller 4 is pressed against the corner position of the mobile phone 5.

[0069] 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 based on the structure, 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. An improved inclined pressure roller film applicator, comprising: The positioning seat and the pressing roller located above the positioning seat and having a length greater than the width of the mobile phone are provided on the positioning seat. A positioning cavity for accommodating and positioning the mobile phone is provided on the positioning seat. The pressing roller moves relatively from the starting end to the end of the positioning cavity and presses the protective film positioned above the mobile phone while moving relative to each other. The characteristics are: 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; When applying the film, the pressure roller moves relative to each other from the starting end to the end end of the positioning cavity. When the pressure roller and the positioning seat move relative to each other to the end position, the pressure roller does not completely separate from the top of the positioning cavity, that is, in this end position, at least part of the pressure roller is pressed against the corner of the mobile phone.

2. The improved inclined pressure roller film applicator according to claim 1, characterized in that: When the pressing roller moves relatively from the starting end to the ending end, the pressing area between the pressing roller and the mobile phone moves relatively from the first corner at the starting end of the mobile phone to the second corner at the diagonal position; when the pressing roller moves relatively to the end position, the second corner of the mobile phone is not pressed by the pressing roller to form an unpressed area, and the width of the unpressed area is less than half of the width of the mobile phone.

3. The improved inclined pressure roller film applicator according to claim 2, characterized in that: The width of the unlaminated area is less than one third of the width of the mobile phone.

4. The improved inclined pressure roller film applicator according to claim 1, characterized in that: The axis of the pressure roller is not perpendicular to the direction of relative sliding of the positioning seat; the transverse direction of the positioning cavity is perpendicular to the direction of relative sliding of the positioning seat, and the angle formed between the axis of the pressure roller and the transverse direction of the positioning cavity is 3 to 20 degrees.

5. The improved inclined pressure roller film applicator according to claim 1, characterized in that: The positioning seat can be pulled out and installed on a base, which includes a pull-out cavity with an open end for accommodating the positioning seat. The positioning seat is installed in the pull-out cavity, and a guide rail structure for pulling is provided between the positioning seat and the pull-out cavity; a pressure roller seat is provided on the base, and the pressure roller is installed on the pressure roller seat. When the positioning seat is pulled out along the open end of the pull-out cavity, the positioning seat drives the mobile phone placed in the positioning cavity and the protective film positioned on the surface of the mobile phone to move from under the pressure roller, and the pressure roller rolls the protective film positioned on the mobile phone to complete the attachment of the protective film.

6. The improved inclined pressure roller film applicator according to claim 5, characterized in that: The base is pivotally connected with a cover body, and when the cover body is covered on the base, the cover body clamps the pressure roller seat.

7. The improved inclined pressure roller film applicator according to claim 1, characterized in that: The pressing roller is slidably mounted on the positioning seat through a sliding seat, and slide rails or slide grooves are provided on both sides of the positioning seat; slide grooves or sliders are provided on both sides of the sliding seat to cooperate with the slide rails or slide grooves provided on both sides of the positioning seat; when the sliding seat is pushed to slide, the sliding seat drives the pressing roller to move from above the protective film, and rolls the protective film positioned on the mobile phone to complete the attachment of the protective film.

8. The improved inclined pressure roller film applicator according to claim 5, characterized in that: The relative movement of the pressing roller and the positioning seat to the terminal position is limited by the length of the guide rail structure between the positioning seat and the drawing cavity, or by a displacement limiter provided in the guide rail structure.

9. The improved inclined pressure roller film applicator according to claim 7, characterized in that: The relative movement of the pressure roller and the positioning seat to the end position is limited by the length of the slide rail or slide groove between the positioning seat and the sliding seat, or by a displacement limiter provided in the slide rail or slide groove.

10. The improved inclined pressure roller film applicator according to any one of claims 1 to 7, characterized in that: The terminal position of the relative movement between the pressure roller and the positioning seat is limited by a displacement limiter integrally provided on the positioning seat; the displacement limiter is higher than the positioning cavity and interferes with the pressure roller.

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