A thermal transfer film tearing mechanism for mobile phone camera glass cover

Abstract

The utility model provides a thermal transfer adhesive film tearing mechanism for a mobile phone camera glass cover, comprising a supporting seat, a clamping claw seat, a film separating, film absorbing and film pressing assembly, wherein the film separating assembly comprises a sharp corner block connected to the front part of a front end plate of a thermal transfer production line, so that the bottom film passing through the front end plate can be wound around the sharp corner block and then rolled up onto a winding roller, and when the glass cover moves forward with the bottom film, the bonding part between the thermal transfer adhesive film and the bottom film can be pushed open by utilizing the self strength of the glass cover, so as to form an end head that is convenient for clamping; the film absorbing assembly comprises a plurality of adsorption holes arranged on the upper surface of the front end plate, so that when the film is torn off, the bottom film can be adsorbed to prevent the bottom film from shaking; the film pressing assembly comprises a pressure rod connected to the bottom of the supporting seat, so that the pressure rod is located in front of the clamping claw and extends horizontally in the left and right directions, so that the cross section thereof is rectangular, and when the film is torn off, the lower surface of the pressure rod is higher than the thermal transfer adhesive film by 0.1-0.5 mm, so that the glass cover can be prevented from being lifted up by the thermal transfer adhesive film, and the degree of misalignment thereof is ensured to be within an allowable range.

Description

Technical Field

[0001] The utility model belongs to the technical field of film pasting on glass cover plates, and in particular relates to a mechanism for tearing off a thermal transfer adhesive film on a mobile phone camera glass cover plate. Background Art

[0002] Mobile phones are usually equipped with cameras to realize the photo function. As people's requirements for photo effects become higher and higher, the number of cameras on existing mobile phones is increasing, from single-camera, dual-camera to triple-camera, quad-camera, and the glass cover covering the rear camera is also getting larger. When processing such glass cover plates, in addition to size processing, thermal transfer is often required to display information such as brand and camera parameters. In order to improve the transfer efficiency and transfer effect, the existing thermal transfer is mostly achieved by covering the glass cover plates arranged in an array with a transfer film. Since the film is adhesive and the transfer process requires heating, after the transfer is completed, the film is often adhered to the upper surface of the glass cover plate, and the bottom film used to support the glass cover plate array is mostly without film. When tearing off the film, the traditional clamping claw film tearing method has the following problems:

[0003] 1. The end of the adhesive film is adhered to the base film, making it difficult to separate it from the base film.

[0004] 2. During the film removal process, the glass cover is easily lifted up by the film. Even if it is forcibly removed, the array position of the glass cover will be changed, affecting the subsequent process operations. Utility Model Content

[0005] The purpose of the utility model is to overcome one or more shortcomings in the prior art and to provide a mechanism for tearing off the thermal transfer film on the glass cover of a mobile phone camera. When the mechanism is used to tear off the thermal transfer film on the glass cover, the end of the film can be easily separated, and during the film tearing process, the degree of misalignment of the glass cover can be ensured to be within an allowable range.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is that the thermal transfer film tearing mechanism of the mobile phone camera glass cover plate includes:

[0007] A support seat that can be moved forward and backward and is arranged in front of the thermal transfer production line;

[0008] A clamping jaw seat connected to the rear side of the support seat in a manner that can move up and down, the clamping jaw seat being connected with a clamping jaw that can be opened and closed up and down and a clamping jaw cylinder for driving the clamping jaw to open and close;

[0009] The mobile phone camera glass cover plate thermal transfer adhesive film tearing mechanism also includes a film separation component, a film suction component and a film pressing component;

[0010] The film separation component is used to separate the thermal transfer adhesive film from the bottom film on the glass cover plate, and the film separation component includes a sharp corner block connected to the front part of the front end plate of the thermal transfer production line, the sharp corner block has a first surface flush with the upper surface of the front end plate, and a second surface extending backward and downwardly inclined, the first surface and the front end of the second surface intersect to form an acute angle less than or equal to 30 degrees, the bottom film passing through the front end plate bypasses the sharp corner block and is rolled up on the winding roller, and when the glass cover plate moves forward with the bottom film, the glass cover plate uses its own strength to lift the thermal transfer adhesive film

[0011] The bonding part between the printed rubber film and the base film is pushed open to form an end that is convenient for the clamping claws to clamp;

[0012] The film suction component is used to absorb the bottom film to avoid the glass cover plate from being dislocated due to the shaking of the bottom film when the film is torn off. The film suction component includes a plurality of adsorption holes opened on the upper surface of the front end plate;

[0013] The film pressing assembly is used to prevent the thermal transfer adhesive film from lifting the glass cover plate when tearing off the film. The film pressing assembly includes a pressure rod connected to the bottom of the support seat, the pressure rod is located in front of the clamping claw and extends horizontally in the left and right directions, the length of the pressure rod in the left and right directions is greater than or equal to the width of the thermal transfer adhesive film in the left and right directions, and the cross-section of the pressure rod is rectangular. When tearing off the thermal transfer adhesive film, the lower surface of the pressure rod is 0.1-0.5mm higher than the thermal transfer adhesive film adhered to the glass cover plate.

[0014] Preferably, the width of the compression rod in the front-to-back direction is greater than or equal to the distance between two adjacent glass cover plates in the front-to-back direction.

[0015] Preferably, the cross section of the pressure rod is square.

[0016] Preferably, a film pressing seat that can move up and down and a film pressing cylinder for driving the film pressing seat to move up and down are connected to the bottom of the support seat. The film pressing seat is in the shape of a vertical plate extending horizontally along the left and right directions. The film pressing seat is connected to the bottom of the rear side of the support seat through the film pressing cylinder.

[0017] Further preferably, the two ends of the pressure rod are connected to the two ends of the film pressing seat through a connecting rod extending horizontally along the front-to-back direction, the front end of the connecting rod is provided with a waist-shaped groove extending along the front-to-back direction, and the connecting rod is locked to the end of the film pressing seat by a connecting bolt passing through the waist-shaped groove.

[0018] Further preferably, the lamination assembly also includes a pressing plate, which extends in a horizontal direction and is connected to the lamination seat, and is located in front of the clamping jaws. The pressing plate is a polyetheretherketone plate, and when the thermal transfer adhesive film is torn off, the pressing plate is inserted between the end and the glass cover plate, and the lower surface of the pressing plate is 0.1-0.5mm higher than the glass cover plate.

[0019] Further preferably, the front end portion of the pressing plate is vertically bent upward to form a bent portion, and the bent portion is connected to the middle portion of the film pressing seat.

[0020] Further preferably, the pressure plate is provided with an avoidance groove for avoiding the clamping claws.

[0021] Preferably, the rear side surface of the support seat is also provided with an electric cylinder for driving the clamping jaw seat to move up and down, and a slide rail pair for guiding the up and down movement of the clamping jaw seat.

[0022] Further preferably, when the thermal transfer adhesive film is torn off, the upward movement distance of the clamping jaw seat in a unit time is half of the backward movement distance of the supporting seat in a unit time.

[0023] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0024] 1. The film separation assembly includes a sharp-angle block connected to the front part of the front end plate of the thermal transfer production line, and the sharp-angle block has a first surface flush with the upper surface of the front end plate, and a second surface extending backward and downward in an inclined manner, so that the front end portions of the first surface and the second surface intersect and form an acute angle less than or equal to 30°, so that the bottom film passing through the front end plate bypasses the sharp-angle block and is rolled up onto the winding roller. When the glass cover plate moves forward with the bottom film, the bonding portion between the thermal transfer adhesive film and the bottom film can be pushed open by utilizing the self-strength of the glass cover plate, thereby forming an end that is easy to clamp.

[0025] 2. The film suction assembly includes a plurality of suction holes opened on the upper surface of the front end plate, so that when tearing the film, the bottom film can be sucked to avoid the glass cover plate being misaligned due to the shaking of the bottom film.

[0026] 3. The film pressing assembly includes a pressing rod connected to the bottom of the support seat, the pressing rod is located in front of the clamping claw and extends horizontally in the left-right direction, the length of the pressing rod in the left-right direction is greater than or equal to the width of the thermal transfer film in the left-right direction, and the cross-section of the pressing rod is rectangular. When tearing the film, the lower surface of the pressing rod is 0.1-0.5mm higher than the thermal transfer film pasted on the glass cover plate. The pressing rod can be used to press the surface of the thermal transfer film away from the glass cover plate to make it at a suitable film tearing inclination angle, and reversely scrape the glass cover plate adhered to the thermal transfer film to avoid the glass cover plate being lifted by the thermal transfer film, thereby ensuring that the misalignment degree of the glass cover plate is within the allowable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 , Figure 2 It is a three-dimensional schematic diagram of the utility model and a thermal transfer device.

[0028] Figure 3 yes Figure 1 Schematic top view of .

[0029] Figure 4 yes Figure 3 Schematic cross-sectional view along the AA direction.

[0030] Figure 5 yes Figure 4 A local enlarged schematic diagram of point B in the middle.

[0031] Figure 6 yes Figure 2 A three-dimensional schematic diagram of the middle support seat.

[0032] Figure 7 yes Figure 6 Schematic diagram without the gripper base, gripper and gripper cylinder.

[0033] Among them: 1. Thermal transfer production line; 2. Thermal transfer film; 3. Glass cover; 4. Bottom film; 5. Front end plate; 6. Winding roller; 7. End; 10. Support seat; 11. Film pressing seat; 12. Film pressing cylinder; 13. Electric cylinder; 14. Slide rail pair; 15. Drive unit; 20. Claw seat; 21. Claw; 22. Claw cylinder; 30. Film separation assembly; 31. Sharp corner block; 311. First surface; 312. Second surface; 40. Film suction assembly; 41. Adsorption hole; 50. Film pressing assembly; 51. Pressure rod; 52. Connecting rod; 521. Waist groove; 53. Pressure plate; 531. Avoidance groove; 532. Bending part; 60. Waste frame. DETAILED DESCRIPTION

[0034] The utility model provides a thermal transfer film tearing mechanism for a mobile phone camera glass cover, comprising: a support seat 10, a clamping claw seat 20, a film separation component 30, a film suction component 40, and a film pressing component 50, wherein the support seat 10 is arranged in front of a thermal transfer production line 1 and can be moved forward and backward, and the forward and backward movement is achieved by the cooperation of a servo motor and a screw rod pair (driving unit 15); the clamping claw seat 20 is connected to the rear side of the support seat 10 and can be moved up and down, and a clamping claw 21 that can be opened and closed up and down and a clamping claw for driving the clamping claw are connected to the clamping claw seat 20. The film separation assembly 30 is used to separate the thermal transfer adhesive film 2 from the bottom film 4 carrying the glass cover plate 3. The film separation assembly 30 includes a sharp angle block 31 connected to the front end of the front end plate 5 of the thermal transfer production line 1. The sharp angle block 31 has a first surface 311 flush with the upper surface of the front end plate 5 and a second surface 312 extending backward and downward. The front ends of the first surface 311 and the second surface 312 intersect to form an acute angle less than or equal to 30° (in this embodiment, the angle is equal to or less than 30°). The bottom film 4 passing through the front end plate 5 passes around the sharp corner block 31 and is then rolled up onto the winding roller 6. When the glass cover plate 3 moves forward with the bottom film 4, the glass cover plate 3 uses its own strength to push open the bonding portion between the thermal transfer adhesive film 2 and the bottom film 4, forming an end 7 that is convenient for the clamping claw 21 to clamp; the film suction component 40 is used to absorb the bottom film 4 to avoid the glass cover plate 3 from being misaligned due to the shaking of the bottom film 4 when the film is torn off. The film suction component 40 includes a plurality of suction holes 41 formed on the upper surface of the front end plate 5; when the clamping claw 21 clamps the end 7, When tearing off the film, the film pressing assembly 50 is used to prevent the thermal transfer film 2 from lifting the glass cover plate 3 when tearing off the film. The film pressing assembly 50 includes a pressure rod 51 connected to the bottom of the support seat 10. The pressure rod 51 is located in front of the clamping jaw 21 and extends horizontally in the left and right directions. The length of the pressure rod 51 in the left and right directions is greater than or equal to the width of the thermal transfer film 2 in the left and right directions. The cross-section of the pressure rod 51 is rectangular. When tearing off the thermal transfer film 2, the lower surface of the pressure rod 51 is 0.1-0.5mm higher than the thermal transfer film adhered to the glass cover plate 3.

[0035] The advantages of this setting are:

[0036] 1. The film separation assembly includes a sharp-angle block connected to the front part of the front end plate of the thermal transfer production line, and the sharp-angle block has a first surface flush with the upper surface of the front end plate, and a second surface extending backward and downward in an inclined manner, so that the front end portions of the first surface and the second surface intersect and form an acute angle less than or equal to 30°, so that the bottom film passing through the front end plate bypasses the sharp-angle block and is rolled up onto the winding roller. When the glass cover plate moves forward with the bottom film, the bonding portion between the thermal transfer adhesive film and the bottom film can be pushed open by utilizing the self-strength of the glass cover plate, thereby forming an end that is easy to clamp.

[0037] 2. The film suction assembly includes a plurality of suction holes opened on the upper surface of the front end plate, so that when tearing the film, the bottom film can be sucked to avoid the glass cover plate being misaligned due to the shaking of the bottom film.

[0038] 3. The film pressing assembly includes a pressing rod connected to the bottom of the support seat, the pressing rod is located in front of the clamping claw and extends horizontally in the left-right direction, the length of the pressing rod in the left-right direction is greater than or equal to the width of the thermal transfer film in the left-right direction, and the cross-section of the pressing rod is rectangular. When tearing the film, the lower surface of the pressing rod is 0.1-0.5mm higher than the thermal transfer film pasted on the glass cover plate. The pressing rod can be used to press the surface of the thermal transfer film away from the glass cover plate to make it at a suitable film tearing inclination angle, and reversely scrape the glass cover plate adhered to the thermal transfer film to avoid the glass cover plate being lifted by the thermal transfer film, thereby ensuring that the misalignment degree of the glass cover plate is within the allowable range.

[0039] In this embodiment, the cross section of the pressure rod 51 is square, and the width of the pressure rod 51 in the front-to-back direction is greater than or equal to the distance between two adjacent glass cover plates 3 in the front-to-back direction to ensure a smooth transition.

[0040] Preferably, a film pressing seat 11 that can move up and down and a film pressing cylinder 12 for driving the film pressing seat 11 to move up and down are connected to the bottom of the support seat 10. The film pressing seat 11 is in the shape of a vertical plate extending horizontally in the left-right direction, and the film pressing seat 11 is connected to the bottom of the rear side of the support seat 10 through the film pressing cylinder 12; further, the two ends (left and right ends) of the pressing rod 51 are connected to the two ends (left and right ends) of the film pressing seat 11 through a connecting rod 52 extending horizontally in the front-to-back direction, and the front end of the connecting rod 52 is provided with a waist-shaped groove 521 extending in the front-to-back direction, and the connecting rod 52 is locked to the ends (left and right ends) of the film pressing seat 11 by a connecting bolt (not shown in the figure) passed through the waist-shaped groove 521.

[0041] In order to improve the separation effect of the glass cover plate 3 and the thermal transfer film 2 when tearing off the film, the film pressing assembly 50 further includes a pressing plate 53, which extends in the horizontal direction and is connected to the film pressing seat 11. The pressing plate 53 is located in front of the clamping claw 21. When tearing off the thermal transfer film 2, the pressing plate 53 is inserted between the end 7 and the glass cover plate 3. The lower surface of the pressing plate 53 is 0.1-0.5mm higher than the glass cover plate. Even if the glass cover plate 3 is lifted up by the thermal transfer film 2, it will be separated from the thermal transfer film 2 at the first time due to touching the pressing plate 53. At the same time, the pressing plate 53 is a polyetheretherketone (PEEK) plate to avoid crushing the glass cover plate 3 and leaving marks on the glass cover plate 3.

[0042] In order to achieve a good fit between the pressure plate 53 and the pressure rod 51, in the present embodiment, the distance between the rear end surface of the pressure plate 53 and the front surface of the pressure rod 51 is not greater than the distance between two adjacent glass cover plates 3 in the front-to-back direction. At the same time, the distance between the rear end surface of the pressure plate 53 and the front surface of the pressure rod 5 should allow the thermal transfer film 2 to swing freely according to its own force conditions.

[0043] Due to the above-mentioned spacing limitation, the clamping jaws 21 are often difficult to clamp to the end 7. To solve this problem, in the present embodiment, the rear end of the pressing plate 53 is provided with an avoidance groove 531 for avoiding the clamping jaws 21. At the same time, to facilitate the connection, the front end of the pressing plate 53 is vertically bent upward to form a bending portion 532, and the bending portion 532 is connected to the middle part of the film pressing seat 11.

[0044] To facilitate the up and down sliding of the clamping jaw seat 20 , in this embodiment, the rear side surface of the support seat 10 is also provided with an electric cylinder 13 for driving the clamping jaw seat 20 to move up and down, and a slide rail pair 14 for guiding the up and down movement of the clamping jaw seat 20 .

[0045] To ensure the efficiency and effect of film tearing, when tearing off the thermal transfer film 2 on the glass cover plate 3, the upward movement distance of the clamping claw seat 20 per unit time is half of the backward movement distance of the support seat 10 per unit time. At the same time, when the film tearing part is between adjacent glass cover plates 3, the upward movement speed of the clamping claw seat 20 is increased by 10%.

[0046] To facilitate waste film collection, the mobile phone camera glass cover thermal transfer film tearing mechanism also includes a waste film frame 60 for collecting waste film. The waste film frame 60 is arranged in front of the thermal transfer production line 1 and is located below the support seat 10.

[0047] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A mechanism for removing thermal transfer adhesive film from a mobile phone camera glass cover, comprising: A support seat that can be moved forward and backward and is arranged in front of the thermal transfer production line; A clamping jaw seat connected to the rear side of the support seat in a manner that can move up and down, the clamping jaw seat being connected with a clamping jaw that can be opened and closed up and down and a clamping jaw cylinder for driving the clamping jaw to open and close; Features: The mobile phone camera glass cover plate thermal transfer adhesive film tearing mechanism also includes a film separation component, a film suction component and a film pressing component; The film separation assembly is used to separate the thermal transfer adhesive film from the bottom film carrying the glass cover plate, and the film separation assembly includes a sharp-angle block connected to the front part of the front end plate of the thermal transfer production line, the sharp-angle block has a first surface flush with the upper surface of the front end plate, and a second surface extending backward and downward in an inclined manner, the first surface and the front end of the second surface intersect to form an acute angle less than or equal to 30°, the bottom film passing through the front end plate bypasses the sharp-angle block and is rolled up onto the winding roller, and when the glass cover plate moves forward with the bottom film, the glass cover plate uses its own strength to push open the bonding part between the thermal transfer adhesive film and the bottom film, forming an end that is convenient for the clamping claw to clamp; The film suction component is used to absorb the bottom film to avoid the glass cover plate from being dislocated due to the shaking of the bottom film when the film is torn off. The film suction component includes a plurality of adsorption holes opened on the upper surface of the front end plate; The film pressing assembly is used to prevent the thermal transfer adhesive film from lifting the glass cover plate when tearing off the film. The film pressing assembly includes a pressure rod connected to the bottom of the support seat, the pressure rod is located in front of the clamping claw and extends horizontally in the left and right directions, the length of the pressure rod in the left and right directions is greater than or equal to the width of the thermal transfer adhesive film in the left and right directions, and the cross-section of the pressure rod is rectangular. When tearing off the thermal transfer adhesive film, the lower surface of the pressure rod is 0.1-0.5mm higher than the thermal transfer adhesive film adhered to the glass cover plate.

2. The thermal transfer film removal mechanism for a mobile phone camera glass cover according to claim 1, characterized in that: The width of the pressure rod in the front-to-back direction is greater than or equal to the distance between two adjacent glass cover plates in the front-to-back direction.

3. The thermal transfer film removal mechanism for a mobile phone camera glass cover according to claim 1, characterized in that: The cross section of the pressure rod is square.

4. The thermal transfer film removal mechanism for a mobile phone camera glass cover according to claim 1, characterized in that: A film pressing seat that can move up and down and a film pressing cylinder for driving the film pressing seat to move up and down are connected to the bottom of the support seat. The film pressing seat is in the shape of a vertical plate extending horizontally in the left and right directions. The film pressing seat is connected to the bottom of the rear side of the support seat through the film pressing cylinder.

5. The mechanism for removing thermal transfer film from a mobile phone camera glass cover according to claim 4, characterized in that: The two ends of the pressure rod are connected to the two ends of the film pressing seat through a connecting rod extending horizontally along the front and rear directions. The front end of the connecting rod is provided with a waist-shaped groove extending along the front and rear directions. The connecting rod is locked to the end of the film pressing seat by a connecting bolt passing through the waist-shaped groove.

6. The mechanism for removing thermal transfer film from a mobile phone camera glass cover according to claim 4, characterized in that: The laminating assembly also includes a pressing plate, which extends in a horizontal direction and is connected to the laminating seat. The pressing plate is located in front of the clamping jaws. The pressing plate is a polyetheretherketone plate. When the thermal transfer film is torn off, the pressing plate is inserted between the end and the glass cover plate. The lower surface of the pressing plate is 0.1-0.5mm higher than the glass cover plate.

7. The mechanism for removing thermal transfer film from a mobile phone camera glass cover according to claim 6, characterized in that: The front end portion of the pressing plate is vertically bent upward to form a bent portion, and the bent portion is connected to the middle portion of the film pressing seat.

8. The mechanism for removing thermal transfer adhesive film from a mobile phone camera glass cover according to claim 6, characterized in that: The pressing plate is provided with an avoidance groove for avoiding the clamping claws.

9. The mechanism for removing thermal transfer film from a mobile phone camera glass cover according to claim 1, characterized in that: The rear side surface of the support seat is also provided with an electric cylinder for driving the clamping jaw seat to move up and down, and a slide rail pair for guiding the clamping jaw seat to move up and down.

10. The thermal transfer film tearing mechanism for a mobile phone camera glass cover according to claim 9, characterized in that: When the thermal transfer adhesive film is torn off, the upward movement distance of the clamping claw seat in a unit time is half of the backward movement distance of the supporting seat in a unit time.

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