Roll-in type film sticking device

Abstract

The utility model relates to a rolling type film pasting device which comprises a positioning base, a pressing roller assembly, a positioning assembly and a film assembly, the top face of the positioning base is provided with a containing groove matched with the peripheral contour and the size of a mobile phone to be pasted with a film, and the positioning assembly is arranged on the top face of the positioning base and used for positioning the film assembly so that the film assembly can be hung above the containing groove. The pressing roller assembly comprises a support, a first pressing roller and a second pressing roller, the support is in sliding connection with the positioning base to achieve reciprocating sliding in the length extension direction of the containing groove, first rotating shafts are arranged in the centers of the two ends of the first pressing roller correspondingly, and the two first rotating shafts are rotationally connected with the support and enable the first pressing roller to stretch across the containing groove in the width extension direction of the containing groove; second rotating shafts are arranged in the centers of the two ends of the second pressing roller, the two second rotating shafts are rotationally connected with the support, the second pressing roller is parallel to the first pressing roller, and the second pressing roller is located in the middle of the width extension direction of the alignment containing groove.

Description

Technical Field

[0001] This application relates to the technical field of mobile phone screen protector application equipment, and more specifically, it relates to a roller-type screen protector applicator. Background Technology

[0002] A screen protector is a protective film applied to a mobile phone screen. Its main purpose is to protect the screen from scratches, fingerprints, dust, and other contaminants, and can even reduce damage from drops to some extent. Screen protectors not only effectively extend the lifespan of the phone screen but also enhance the user experience. They are typically made of UTG film.

[0003] Because manual screen protector application is prone to result in misaligned films, various types of screen protector applicators have been introduced to the market. These applicators are tools used to assist in the application of screen protectors to mobile phones, primarily to help users apply the screen protector more accurately and efficiently. Among them, the roller-type screen protector applicator is the most common. The roller-type applicator uses a pressure roller to press the protective film onto the mobile phone screen. The pressure roller is set to slide horizontally across the width of the mobile phone and back and forth along the length of the mobile phone to press the film component onto the screen.

[0004] With the above technical solution, since the pressure roller spans across the phone from the width direction, when the pressure roller moves towards the length direction of the phone, all parts of the protective film are simultaneously subjected to force in the width direction. As a result, when air bubbles are generated when the film and screen are bonded, there is no gap between the film and the screen for the air bubbles to escape, resulting in poor film application effect. Utility Model Content

[0005] In order to solve the problem in related technologies where a pressure roller spanning the width of the mobile phone is used to press the protective film onto the mobile phone screen, and each part of the protective film is subjected to force simultaneously in the width direction, resulting in air bubbles being generated when the film and screen are bonded together, and there is no gap between the film and the screen for the air bubbles to escape, leading to poor film application effect, this application provides a roller-type film applicator.

[0006] A roller-type film applicator includes a positioning base, a pressure roller assembly, a positioning component, and a film assembly. The top surface of the positioning base has a receiving groove adapted to the periphery and size of the mobile phone to which the film is to be applied. The positioning component is disposed on the top surface of the positioning base to position the film assembly so that the film assembly is suspended above the receiving groove. The pressure roller assembly includes a bracket, a first pressure roller, and a second pressure roller. The bracket is slidably connected to the positioning base to achieve reciprocating sliding along the length extension direction of the receiving groove. A first rotating shaft is disposed at the center of each end of the first pressure roller. Both first rotating shafts are rotatably connected to the bracket and cause the first pressure roller to span the receiving groove along the width extension direction of the receiving groove. A second rotating shaft is disposed at the center of each end of the second pressure roller. Both second rotating shafts are rotatably connected to the bracket and cause the second pressure roller to be parallel to the first pressure roller, and the second pressure roller is positioned at the middle position aligned with the width extension direction of the receiving groove.

[0007] Preferably, the bracket includes a crossbeam, with downwardly extending connecting blocks at both ends of the crossbeam. One first rotating shaft is rotatably connected to one of the connecting blocks, and another first rotating shaft is rotatably connected to another connecting block. One second rotating shaft is rotatably connected to one of the connecting blocks, and another second rotating shaft is rotatably connected to another connecting block. The top surface of the positioning base is recessed with sliding grooves on opposite sides of the receiving groove. The sliding grooves extend along the length direction of the receiving groove and their extension length is longer than the length of the receiving groove. The bottom surfaces of the two connecting blocks are provided with sliders. The width of the sliders is adapted to the width of the sliding grooves. One slider is inserted into one sliding groove and slides along the length extension direction of the sliding groove, and the other slider is inserted into the other sliding groove and slides along the length extension direction of the sliding groove.

[0008] Preferably, the positioning base is further provided with limiting strips on the opposite side walls of the receiving groove in the width extension direction. The length extension direction of the limiting strips is the same as that of the sliding groove. The two connecting blocks extend across the opposite side walls of the positioning base in the width direction of the receiving groove. The bottom surfaces of the two connecting blocks extending out of the positioning base are provided with limiting side plates extending downward. The two limiting side plates are respectively attached to the outer sides of the corresponding two limiting strips. The opposite sides of the two limiting side plates are provided with limiting blocks. The two limiting blocks abut against the bottom sides of the corresponding two limiting side plates.

[0009] Preferably, both the first pressure roller and the second pressure roller are made of elastic rubber.

[0010] Preferably, the positioning component includes a support frame and a pad, the support frame and the pad are fixed to the top surface of the positioning base, and the support frame and the pad are respectively placed on opposite sides of the length extension direction of the receiving groove. A first positioning post is provided on the top of the support frame, and a second positioning post is provided on the top of the pad. The membrane component includes a positioning membrane and a UTG membrane. The UTG membrane is bonded to the positioning membrane with AB glue. The UTG membrane is located in the middle of the positioning membrane. A first positioning hole matching the first positioning post and a second positioning hole matching the second positioning post are respectively opened at both ends of the positioning membrane.

[0011] Preferably, the side of the pad away from the receiving groove is an inclined surface that slopes upward from the top surface of the positioning base.

[0012] Preferably, the height of the first positioning post relative to the top surface of the positioning base is higher than the height of the second positioning post relative to the top surface of the positioning base.

[0013] Preferably, the support frame includes a crossbar with both ends bent downwards to form connecting portions. The two connecting portions are connected and fixed to the positioning base. There is a gap between the crossbar and the top surface of the positioning base. The first positioning post is disposed on the top of the crossbar. The membrane assembly also includes a release film and a handle film. The release film matches the size of the UTG film and is attached to the side of the UTG film away from the positioning film. The handle film is connected to the end of the release film near the second positioning hole, and the handle film is bent downwards and extends in the direction of the first positioning hole. The gap between the crossbar and the top surface of the positioning base is used for the handle film to pass through.

[0014] The beneficial technical effects of this application are as follows: By adapting the accommodating groove to the peripheral contour and size of the mobile phone, the mobile phone is fixed and positioned on the positioning base when placed in the accommodating groove. The positioning component positions the film assembly and suspends the film assembly above the accommodating groove, realizing the relative position of the mobile phone screen and the film assembly. When the film assembly is pressed down and pressed onto the mobile phone screen, it is not easy to be misaligned. The bracket slides back and forth along the length extension direction of the accommodating groove, thereby driving the first pressure roller and the second pressure roller to roll the film assembly along the length direction of the film assembly. The second pressure roller is located in the middle position of the width extension direction of the accommodating groove, so that the middle part of the film assembly is pressed first. When the film assembly is attached to the mobile phone screen, air bubbles can be pushed from the middle part of the film assembly to both sides by the second pressure roller and discharged. At the same time as the second pressure roller presses over the film assembly, the first pressure roller rolls the film assembly from behind the second pressure roller in the direction of movement, so that the film assembly is completely attached to the mobile phone screen. The second pressure roller first presses the middle part of the film assembly. There is still a slight gap between the two sides of the film assembly and the mobile phone screen. When the pressure of the second pressure roller generates air bubbles, the air bubbles are pressed out from both sides of the film assembly, reducing the number of air bubbles remaining between the film assembly and the mobile phone screen, thus making the mobile phone screen protector better. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a roller-pressed film applicator according to this embodiment.

[0016] Figure 2 This is a schematic diagram of the connection structure between the positioning base and the positioning component in this embodiment.

[0017] Figure 3 This is a schematic diagram of the pressure roller assembly in this embodiment.

[0018] Figure 4 This is a schematic diagram of the membrane module in this embodiment.

[0019] Reference numerals: 1. Positioning base; 11. Receiving groove; 12. Slide groove; 13. Limiting strip; 2. Pressure roller assembly; 21. Support; 211. Crossbeam; 212. Connecting block; 213. Slider; 214. Limiting side plate; 215. Limiting block; 22. First pressure roller; 221. First rotating shaft; 23. Second pressure roller; 231. Second rotating shaft; 3. Positioning assembly; 31. Support frame; 311. First positioning post; 312. Crossbar; 313. Connecting part; 32. Pad; 321. Second positioning post; 322. Inclined surface; 4. Membrane assembly; 41. Positioning membrane; 411. First positioning hole; 412. Second positioning hole; 42. UTG membrane; 43. Release film; 44. Handle film. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Reference Figure 1 and Figure 2 A roller-type film applicator includes a positioning base 1, a pressure roller assembly, a positioning assembly 3, and a film assembly 4. The top surface of the positioning base 1 is provided with a receiving groove 11, which is adapted to the periphery contour and size of the mobile phone to be applied. The mobile phone is placed in the receiving groove 11 to fix the mobile phone and position the relative position of the mobile phone and the positioning base 1.

[0022] Reference Figure 1 and Figure 2 The positioning component 3 includes a support frame 31 and a pad 32, both of which are fixed to the top surface of the positioning base 1. The support frame 31 and the pad 32 are positioned on opposite sides of the length extension direction of the receiving groove 11. A first positioning post 311 is provided on the top of the support frame 31. There are three first positioning posts 311, spaced apart along the width extension direction of the receiving groove 11. A second positioning post 321 is provided on the top of the pad 32, positioned at the position of the middle first positioning post 311. The membrane component 4 includes a positioning membrane 41 and a UTG membrane 42. The UTG membrane 42 is adhered to the positioning membrane 41 with AB adhesive, and is located in the middle of the positioning membrane 41. During production, the positioning film 41 is positioned and bonded to the positioning film 41. The positioning film 41 is a flexible PET film. Both ends of the positioning film 41 are provided with a first positioning hole 411 that matches the first positioning post 311 and a second positioning hole 412 that matches the second positioning post 321. There are three first positioning holes 411. The positioning film 41 is fitted onto the first positioning post 311 through the first positioning hole 411 and onto the second positioning post 321 through the second positioning hole 412. The positioning film 41 is limited by the first positioning post 311 and the second positioning post 321, and the positioning film 41 is supported by the support frame and the pad 32 to achieve the positioning and fixation of the positioning film 41, thereby realizing the alignment of the UTG film 42 with the mobile phone screen and its suspension above the mobile phone screen.

[0023] Reference Figure 1 and Figure 3The pressure roller assembly 2 includes a support 21, a first pressure roller 22, and a second pressure roller 23. The support 21 includes a crossbeam 211, with connecting blocks 212 extending downward at both ends of the crossbeam 211. The bottom ends of the two connecting blocks 212 are each provided with sliders 213. The top surface of the positioning base 1 is recessed with grooves 12 on opposite sides of the receiving groove 11. The grooves 12 extend along the length of the receiving groove 11 and their extension length is longer than the length of the receiving groove 11. The width of the grooves 12 is adapted to the width of the sliders 213. One slider 213 is inserted into one groove 12 and slides along the length of the groove 12. Another slider 213 is inserted into another groove 12 and slides along the length of the groove 12. Thus, the support 21 as a whole moves back and forth along the length extension direction of the receiving groove 11 and is limited in the lateral direction. Limiting strips 13 are provided on the opposite side walls of the positioning base 1 in the width extension direction of the receiving groove 11. The length extension direction of the limiting strips 13 is the same as the length extension direction of the sliding groove 12. Two connecting blocks 212 extend across the opposite side walls of the positioning base 1 in the width direction of the receiving groove 11. The bottom surfaces of the two connecting blocks 212 extending out of the positioning base 1 are provided with limiting side plates 214. The two limiting side plates 214 are respectively attached to the outer side surfaces of the corresponding two limiting strips 13. The opposite sides of the two limiting side plates 214 are provided with limiting blocks 215. The two limiting blocks 215 respectively abut against the bottom sides of the corresponding two limiting side plates 214, so that the limiting bracket 21 can move vertically as a whole.The first pressure roller 22 has a first rotating shaft 221 at the center of each end, and the two first rotating shafts 221 are rotatably connected to the two connecting blocks 212 respectively. The first pressure roller 22 spans the receiving groove 11 along the width extension direction of the receiving groove 11. The second pressure roller 23 has a second rotating shaft 231 at the center of each end, and the two second rotating shafts 231 are rotatably connected to the two connecting blocks 212 respectively. The first pressure roller 22 and the second pressure roller 23 are parallel, and the second pressure roller 23 is located at the middle position in the width extension direction of the receiving groove 11, and is supported by... When the bracket 21 slides to the side of the second positioning post 321 away from the first positioning post 311, the second pressure roller 23 is positioned close to the second positioning post 321, and the first pressure roller 22 is positioned away from the second positioning post 321. The upper limit of the slide groove 12 in the lateral direction through the bracket 21 prevents the bracket 21 from moving left or right during sliding, ensuring stable sliding. The upper limit of the limit strip 13 in the vertical direction through the bracket 21 prevents the bracket 21 from moving up or down, thus fixing the distance between the first pressure roller 22 and the second pressure roller 23 and the mobile phone screen. The distance between the first pressure roller 22 and the second pressure roller 23 and the mobile phone screen is set to be the same, and this distance is greater than the thickness of the film assembly 4. Both the first pressure roller 22 and the second pressure roller 23 are made of elastic rubber. By pushing the bracket 21 towards the first positioning post 311 from the side of the second positioning post 321 away from the first positioning post 311, the second pressure roller 23 rolls the middle of the film assembly 4, initially pressing the UTG film 42 onto the mobile phone screen. During the rolling process of the second pressure roller 23, the UTG film... The UTG film 42 is tightly bonded to the phone screen under pressure in the middle, and there is still a slight gap between the UTG film 42 and the phone screen. When air bubbles are generated, the air bubbles are pressed out from both sides of the UTG film 42 by the second pressure roller 23. At the same time as the second pressure roller 23 presses the film assembly 4, the first pressure roller 22 presses the film assembly 4 from behind the second pressure roller 23 so that the UTG film 42 is completely bonded to the phone screen. The second pressure roller 23 pre-excludes air bubbles, which reduces the number of air bubbles remaining between the film assembly 4 and the phone screen when applying the screen protector, resulting in a better screen protector application effect.

[0024] Reference Figure 2 Furthermore, the side of the pad 32 away from the receiving groove 11 is an inclined surface 322 that is inclined upward from the top surface of the positioning base 1. This inclined surface 322 is configured to facilitate the movement of the first pressure roller 22 and the second pressure roller 23 over the pad 32 and roll them onto the membrane assembly 4.

[0025] Reference Figure 1 and Figure 2Furthermore, the height of the first positioning post 311 relative to the top surface of the positioning base 1 is higher than the height of the second positioning post 321 relative to the top surface of the positioning base 1, so that the film assembly 4 is set at an angle, so that the end of the UTG film 42 near the first positioning post 311 is away from the mobile phone screen, and the end of the UTG film 42 near the second positioning post 321 is close to the mobile phone screen. When the first pressure roller 22 and the second pressure roller 23 roll the film assembly 4, the UTG film 42 is pressed down from the end of the UTG film 42 near the mobile phone screen, so that the UTG film 42 is gradually pressed onto the mobile phone screen instead of being pressed at once. This helps to reduce the generation of air bubbles and makes the film application effect better.

[0026] Reference Figure 1 , Figure 2 and Figure 3 Furthermore, the membrane assembly 4 also includes a release film 43 and a handle film 44. The release film 43 matches the size of the UTG film 42 and is attached to the side of the UTG film 42 away from the positioning film 41. The release film 43 protects the UTG film 42 from dirt and prevents it from affecting the film application effect. The handle film 44 is connected to the end of the release film 43 near the second positioning hole 412 and is bent downward and extends towards the first positioning hole 411, making it easy to tear the release film 43 from the UTG film 42 by pulling the end of the handle film 44 away from the release film 43. The support frame 31 includes a crossbar 312. The two ends of the crossbar 312 are bent downward to form connecting parts 313. The two connecting parts 313 are connected and fixed to the positioning base 1. There is a gap between the crossbar 312 and the top surface of the positioning base 1. When the film assembly 4 is fixed by the first positioning post 311 and the second positioning post 321, the handle film 44 is pushed out through the gap between the crossbar 312 and the top surface of the positioning base 1. This makes it easier to pull the handle film 44 to tear the release film 43 off the UTG film 42 during the process of the first pressure roller 22 and the second pressure roller 23 rolling the film assembly 4, thereby reducing the situation of dust and dirt on the UTG film 42 during the film application process.

[0027] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll laminator characterized by: The application relates to a positioning base, a compression roller assembly, a positioning assembly and a film assembly, wherein a containing groove is formed in the top surface of the positioning base and is matched with the contour and size of the side of a mobile phone to be pasted with a film; the positioning assembly is arranged on the top surface of the positioning base and is used for positioning the film assembly so that the film assembly is hung above the containing groove; the compression roller assembly comprises a support, a first compression roller and a second compression roller; the support is slidably connected with the positioning base and can reciprocally slide along the length direction of the containing groove; the first compression roller is provided with a first rotating shaft at the center of each end, the first rotating shafts are rotationally connected with the support and make the first compression roller cross the containing groove along the width direction of the containing groove; the second compression roller is provided with a second rotating shaft at the center of each end, the second rotating shafts are rotationally connected with the support and make the second compression roller parallel to the first compression roller, and the second compression roller is located at the middle position of the width direction of the containing groove.

2. The roll laminator according to claim 1, wherein: The support comprises a cross beam, each end of the cross beam is provided with a downwardly extending connecting block, one first rotating shaft is rotationally connected with one connecting block, the other first rotating shaft is rotationally connected with the other connecting block, one second rotating shaft is rotationally connected with one connecting block, the other second rotating shaft is rotationally connected with the other connecting block, the top surface of the positioning base is recessed with a sliding groove on the opposite sides of the containing groove, the sliding groove extends along the length direction of the containing groove and has a length longer than the length of the containing groove, the bottom surface of each connecting block is provided with a sliding block, the width of the sliding block is matched with the width of the sliding groove, one sliding block is clamped into one sliding groove and can slide along the length direction of the sliding groove, and the other sliding block is clamped into the other sliding groove and can slide along the length direction of the sliding groove.

3. The roll-on laminator according to claim 2, wherein: The positioning base is further provided with a limiting strip on the opposite side walls of the containing groove in the width direction, the length direction of the limiting strip is the same as the length direction of the sliding groove, each connecting block spans the opposite side walls of the positioning base in the width direction of the containing groove, and the part of the bottom surface of each connecting block extending out of the positioning base is provided with a limiting side plate extending downward, each limiting side plate is attached to the outer side of the corresponding limiting strip, and the opposite side of each limiting side plate is provided with a limiting block abutting the bottom side of the corresponding limiting side plate.

4. The roll-on laminator according to claim 1, wherein: The first compression roller and the second compression roller are made of elastic rubber.

5. The roll-on laminator according to claim 4, wherein: The positioning assembly comprises a support frame and a pad, the support frame and the pad are fixed on the top surface of the positioning base, and the support frame and the pad are arranged on opposite sides of the extension direction of the accommodating groove, the top of the support frame is provided with a first positioning column, and the top of the pad is provided with a second positioning column, the film assembly comprises a positioning film and a UTG film, the UTG film is attached to the positioning film by AB glue, the UTG film is located at the middle position of the positioning film, and the two ends of the positioning film are provided with a first positioning hole matched with the first positioning column and a second positioning hole matched with the second positioning column.

6. The roll-on laminator according to claim 5, wherein: The side face of the pad away from the accommodating groove is an inclined face inclined upward from the top surface of the positioning base.

7. The roll-on laminator of claim 5, wherein: The height of the first positioning column relative to the top surface of the positioning base is higher than the height of the second positioning column relative to the top surface of the positioning base.

8. The roll-on laminator of claim 5, wherein: The support frame comprises a horizontal rod, the two ends of the horizontal rod are bent downward to form connecting portions, the two connecting portions are connected and fixed with the positioning base, and a gap is formed between the horizontal rod and the top surface of the positioning base, the first positioning column is arranged on the top of the horizontal rod, the film assembly further comprises a release film and a handle film, the size of the release film is matched with the UTG film, and the release film is attached to the side of the UTG film away from the positioning film, the handle film is connected to one end of the release film close to the second positioning hole, and the handle film is bent downward and extends to the direction of the first positioning hole, and the gap between the horizontal rod and the top surface of the positioning base is used for the handle film to pass out.

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