Device for detecting adhesion degree of mobile phone screen protective film

Abstract

The utility model discloses an adhesion degree detection device for a mobile phone screen protection film, and relates to the technical field of mobile phone detection equipment. Through the arrangement of an elastic piece and a suction cup, the elastic piece can enable a movable plate to slowly apply pulling force to the suction cup when the movable plate is driven by a driving piece to ascend; therefore, tension is slowly applied to the mobile phone screen protection film on the upper surface of the mobile phone simulation workpiece, and the situation that the mobile phone screen protection film is directly broken due to hard lifting of the mobile phone screen protection film, and the adhesion degree of the mobile phone screen protection film cannot be detected is avoided. The plurality of suckers are respectively arranged at the four corners of the mobile phone simulation workpiece, so that the corners of the mobile phone screen protection film can be lifted, the condition that the mobile phone screen protection film is always separated from the mobile phone from the corners in the actual use process is simulated, and the authenticity of an adhesion degree detection result is enhanced; and through the arrangement of a connecting block and a limiting structure, extension springs with different extensibility can be replaced conveniently, and different detection requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone detection equipment, in particular to an adhesion detection device for a mobile phone screen protective film. Background Art

[0002] Mobile phone film, also known as mobile phone beauty film or mobile phone protective film, is a kind of cold mounting film that can be used to mount the surface of mobile phone body, screen and other tangible objects. There are many types of mobile phone film. It is not only limited to mounting mobile phones, but also can be used to mount MP3, MP4, computer screen, mouse, speaker and any physical objects that need protection.

[0003] Because it was originally widely used for the beautification of mobile phones, it was named "mobile phone film". Because the mobile phone mounted with the mobile phone film can look brand new and bright, it can not only refurbish the old phone, but also can be waterproof and prevent dust from entering the keyboard and screen, playing a protective role. Therefore, people also commonly call it mobile phone beauty film or mobile phone protective film.

[0004] Among them, adhesion is an important indicator for evaluating mobile phone screen protective films. In order to test the adhesion of mobile phone screen protective films, an intelligent electronic tensile testing machine is needed. The adhesion test indicators of screen protective films include initial adhesion, viscosity, peel strength, etc. There is no relevant standard for protective films in China. The traditional test is carried out in accordance with GB / T 2792-2014 "Test Method for Peel Strength of Adhesive Tapes", see http: / / baohumo.girlsfuli.com / zhidao / 18.html for details.

[0005] In the prior art, although the intelligent electronic tensile testing machine can detect the adhesion of the mobile phone protective film under certain conditions, its detection method is: stick the sample to the center of a clean stainless steel plate, keep the other end of the sample not sticking to the stainless steel plate (free end), and the two sides of the sample should be parallel to the two long sides of the stainless steel plate;

[0006] Firstly, the mobile phone screen protective film is easily broken along the pulling point by hard pulling, which fails to achieve the purpose of detection. Secondly, in actual use, the mobile phone screen protective film is easy to fall off along the edge. The traditional detection method cannot simulate this situation well and the detection effect is poor. Therefore, a mobile phone screen protective film adhesion detection device is needed. Utility Model Content

[0007] The purpose of the present application is to provide a device for detecting the adhesion of a mobile phone screen protective film to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a device for detecting the adhesion of a mobile phone screen protective film, comprising a base, a mobile phone simulation workpiece is mounted on the upper surface of the base by a detachable connection method, a mobile phone screen protective film is attached to the upper surface of the mobile phone simulation workpiece, a mounting frame is fixed on the upper end of the base, and a driving member is mounted on the top of the mounting frame;

[0009] A movable plate driven by the driving member to move up and down is installed at the lower end of the driving member, and a suction cup is elastically connected to the lower end of the movable plate through an elastic member;

[0010] The suction cup is located above the mobile phone simulation workpiece, and a plurality of suction cups are provided and respectively located at four corners of the mobile phone simulation workpiece.

[0011] Preferably, the elastic member comprises a tension spring, and upper and lower ends of the tension spring are detachably connected to the lower end of the movable plate and the upper end of the suction cup respectively through connecting members.

[0012] Preferably, the connecting member comprises a connecting block, the upper end of the connecting block located at the upper end of the tension spring is fixed to the lower end of the movable plate, and the lower end of the connecting block located at the lower end of the tension spring is fixed to the upper end of the suction cup;

[0013] A through hole is provided on the connecting block, and the end of the tension spring movably passes through the through hole;

[0014] The connecting block is also provided with a limiting structure for fixing the end of the tension spring.

[0015] Preferably, the limiting structure includes a threaded hole and a tightening bolt, the threaded hole is opened on the connecting block and is arranged perpendicular to each other on the same horizontal plane as the through hole;

[0016] One end of the tightening bolt is threadedly penetrated through the threaded hole and is tightened against one side of the tension spring in the penetration hole.

[0017] Preferably, the driving member comprises a lifting cylinder, which is fixedly mounted on the upper end of the mounting frame, and a piston rod of the lifting cylinder extends vertically downward and a lower end of the piston rod is fixed to the upper end surface of the movable plate.

[0018] In another technical solution, the lower end of the connecting block located at the lower end of the tension spring is detachably fixed to the upper end of the suction cup through a connecting structure;

[0019] The connection structure comprises a thread groove and a connection stud. The thread groove is opened at the lower end of the connection block and is vertically arranged. The connection stud is fixed to the upper end of the suction cup. The connection stud is threadedly connected in the thread groove.

[0020] In summary, the technical effects and advantages of the utility model are:

[0021] 1. In the utility model, by arranging the elastic member and a plurality of suction cups, the elastic member can make the movable plate slowly apply a pulling force to the suction cup when the driving member drives the movable plate to rise, thereby slowly applying a pulling force to the mobile phone screen protective film on the upper surface of the mobile phone simulation workpiece, avoiding the mobile phone screen protective film being directly broken due to the hard pulling of the mobile phone screen protective film, and failing to achieve the purpose of detecting the adhesion of the mobile phone screen protective film; at the same time, the plurality of suction cups are respectively arranged at the four corners of the mobile phone simulation workpiece, so as to realize the pulling of the corners of the mobile phone screen protective film, simulating the situation that the mobile phone screen protective film is always separated from the mobile phone from the corners during actual use, and enhancing the authenticity of the adhesion test result.

[0022] 2. In the utility model, through the setting of the connecting block and the limiting structure, the upper and lower ends of the tension spring can pass through the through-hole and be limited by the limiting structure, so that the tension spring can be installed between the movable plate and the suction cup, thereby facilitating the replacement of the tension spring and changing the elastic force generated by the tension spring, thereby changing the pulling force on the mobile phone screen protective film to adapt to different detection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the overall three-dimensional structure of this embodiment;

[0025] Figure 2 This is a schematic diagram of the structure of the movable plate, suction cup and tension spring on the upper axis side in this embodiment;

[0026] Figure 3 is a cross-sectional view of the connection block in this embodiment;

[0027] Figure 4 It is a cross-sectional view of the connection block connected to the suction cup in this embodiment.

[0028] In the figure: 1. base; 2. mounting frame; 3. lifting cylinder; 4. movable plate; 5. suction cup; 51. connecting stud; 6. tension spring; 7. connecting block; 71. through hole; 72. threaded hole; 73. threaded groove; 8. tightening bolt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] refer to Figure 1-3 The device for detecting the adhesion of a mobile phone screen protective film shown in the figure comprises a base 1, a mobile phone simulation workpiece is mounted on the upper surface of the base 1 in a detachable connection manner, a mobile phone screen protective film is attached to the upper surface of the mobile phone simulation workpiece, a mounting frame 2 is fixed on the upper end of the base 1, and a driving member is mounted on the top of the mounting frame 2;

[0032] A movable plate 4 is installed at the lower end of the driving member and is driven by the driving member to move up and down. A suction cup 5 is elastically connected to the lower end of the movable plate 4 through an elastic member.

[0033] The suction cup 5 is located above the mobile phone simulation workpiece, and a plurality of suction cups 5 are provided and are respectively located at the four corners of the mobile phone simulation workpiece.

[0034] Based on the above structure, the elastic member can enable the movable plate 4 to slowly apply a pulling force to the suction cup 5 when the driving member drives the movable plate 4 to rise, thereby slowly applying a pulling force to the mobile phone screen protective film on the upper surface of the mobile phone simulation workpiece, avoiding rigidly pulling the mobile phone screen protective film, which causes the mobile phone screen protective film to directly break, and fails to achieve the purpose of detecting the adhesion of the mobile phone screen protective film; at the same time, multiple suction cups 5 are respectively arranged at the four corners of the mobile phone simulation workpiece (i.e., the four corners of the mobile phone screen protective film), which can realize the pulling of the corners of the mobile phone screen protective film, simulating the situation that the mobile phone screen protective film is always separated from the mobile phone from the corners during actual use, thereby enhancing the authenticity of the adhesion test results.

[0035] It should be noted that the adhesion detection device of the mobile phone screen protective film should also be provided with components such as a tension sensor, a data acquisition and processing device (not shown in the figure). The tension sensor can sense the tension generated by the suction cup 5 on the mobile phone screen protective film, and the data acquisition and processing device can process and calculate the tension data, and finally obtain the adhesion data of the mobile phone screen protective film, so as to achieve the effect of collecting the tension data generated by the suction cup 5 on the mobile phone screen protective film, processing and calculating the data, and finally obtaining the corresponding adhesion data of the mobile phone screen protective film, and feeding back to the staff.

[0036] Furthermore, the elastic member includes a stretching spring 6, and the upper and lower ends of the stretching spring 6 are detachably connected to the lower end of the movable plate 4 and the upper end of the suction cup 5 through connecting parts. Through the setting of the stretching spring 6, when the movable plate 4 rises, the stretching spring 6 is gradually stretched, and the stretching spring 6 gradually and slowly applies a pulling force to the suction cup 5, thereby avoiding the direct breakage of the mobile phone screen protective film caused by hard pulling, and failing to achieve the purpose of detecting the adhesion of the mobile phone screen protective film.

[0037] Further, the connecting member includes a connecting block 7, the upper end of the connecting block 7 located at the upper end of the tension spring 6 is fixed to the lower end of the movable plate 4, and the lower end of the connecting block 7 located at the lower end of the tension spring 6 is fixed to the upper end of the suction cup 5;

[0038] The connecting block 7 is provided with a through hole 71, and the end of the tension spring 6 movably passes through the through hole 71;

[0039] The connecting block 7 is also provided with a limiting structure for fixing the end of the tension spring 6 .

[0040] By setting the through hole 71 and the limiting structure, the upper and lower ends of the tension spring 6 can pass through the through hole 71 and be limited by the limiting structure, so that the tension spring 6 can be installed (or removed) between the movable plate 4 and the suction cup 5, thereby facilitating the replacement of the tension spring 6 and changing the elastic force generated by the tension spring 6, thereby changing the pulling force on the mobile phone screen protective film to adapt to different detection requirements.

[0041] Furthermore, the limiting structure includes a threaded hole 72 and a tightening bolt 8, wherein the threaded hole 72 is provided on the connecting block 7 and is arranged perpendicular to each other on the same horizontal plane as the through hole 71;

[0042] One end of the tightening bolt 8 is threadedly passed through the threaded hole 72 and tightened against one side of the tension spring 6 in the through hole 71. After the tension spring 6 is inserted into the through hole 71, the tightening bolt 8 can tighten against the tension spring 6 from one side, thereby fixing the tension spring 6.

[0043] Furthermore, the driving component includes a lifting cylinder 3, which is fixedly installed on the upper end of the mounting frame 2. The piston rod of the lifting cylinder 3 extends vertically downward and the lower end is fixed to the upper end surface of the movable plate 4. The movable plate 4 is driven up and down by the lifting cylinder 3, thereby driving the suction cup 5 to move up and down, thereby achieving the purpose of using the suction cup 5 to test the adhesion of the mobile phone screen protective film.

[0044] Example 2

[0045] refer to Figure 4 The device for detecting the adhesion of a mobile phone screen protective film shown in the embodiment is different from that in embodiment 1 in that:

[0046] The lower end of the connecting block 7 located at the lower end of the tension spring 6 is detachably fixed to the upper end of the suction cup 5 through a connecting structure;

[0047] The connection structure includes a thread groove 73 and a connection stud 51. The thread groove 73 is opened at the lower end of the connection block 7 and is vertically arranged. The connection stud 51 is fixed to the upper end of the suction cup 5. The connection stud 51 is threadedly connected in the thread groove 73.

[0048] By setting the threaded groove 73 and the connecting stud 51, the suction cup 5 can be separated from the connecting block 7, so that the suction cup 5 can be replaced separately, so that suction cups 5 with different diameters can be used to adsorb different mobile phone screen protective films, and the adhesion data of the mobile phone screen protective films under various conditions can be obtained, thereby achieving the purpose of diversified detection.

[0049] The working principle of the utility model is as follows: in daily use, the staff first needs to stick the mobile phone screen protective film on the mobile phone simulation workpiece and meet the coating standard (i.e. no edge white frame, no bubbles, etc.). After that, the staff uses the lifting cylinder 3 to drive the movable plate 4 to descend, thereby driving the suction cup 5 to descend, and making the suction cup 5 adsorbed on the four corners of the mobile phone screen protective film. At this time, the lifting cylinder 3 is started again to drive the movable plate 4 to rise. When the movable plate 4 rises, the suction cup 5 is slowly applied with tension through the tension spring 6, thereby slowly applying tension to the mobile phone screen protective film on the upper surface of the mobile phone simulation workpiece, avoiding hard pulling of the mobile phone screen protective film, resulting in direct breakage of the mobile phone screen protective film, and failing to achieve the purpose of detecting the adhesion of the mobile phone screen protective film; at the same time, multiple suction cups 5 are respectively set at the four corners of the mobile phone simulation workpiece, which can realize the pulling of the corners of the mobile phone screen protective film, simulating the situation that the mobile phone screen protective film is always separated from the mobile phone from the corners during actual use, and enhancing the authenticity of the adhesion test result.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A device for detecting the adhesion of a mobile phone screen protective film, comprising a base (1), a mobile phone simulation workpiece being mounted on the upper surface of the base (1) in a detachable connection manner, a mobile phone screen protective film being attached to the upper surface of the mobile phone simulation workpiece, a mounting frame (2) being fixed at the upper end of the base (1), a driving member being mounted on the top of the mounting frame (2), and characterized in that: A movable plate (4) is installed at the lower end of the driving member and is driven by the driving member to move up and down. The lower end of the movable plate (4) is elastically connected to a suction cup (5) via an elastic member. The suction cup (5) is located above the mobile phone simulation workpiece, and a plurality of suction cups (5) are provided and are respectively located at the four corners of the mobile phone simulation workpiece.

2. The device for detecting the adhesion of a mobile phone screen protective film according to claim 1, characterized in that: The elastic member comprises a tension spring (6), and the upper and lower ends of the tension spring (6) are detachably connected to the lower end of the movable plate (4) and the upper end of the suction cup (5) respectively through connecting members.

3. The device for detecting the adhesion of a mobile phone screen protective film according to claim 2, characterized in that: The connecting member comprises a connecting block (7), the upper end of the connecting block (7) located at the upper end of the tension spring (6) is fixed to the lower end of the movable plate (4), and the lower end of the connecting block (7) located at the lower end of the tension spring (6) is fixed to the upper end of the suction cup (5); The connecting block (7) is provided with a through hole (71), and the end of the tension spring (6) movably passes through the through hole (71); The connection block (7) is also provided with a limiting structure for fixing the end of the tension spring (6).

4. The device for detecting the adhesion of a mobile phone screen protective film according to claim 3, characterized in that: The limiting structure comprises a threaded hole (72) and a tightening bolt (8), wherein the threaded hole (72) is formed on the connecting block (7) and is arranged perpendicularly to the through hole (71) on the same horizontal plane; One end of the tightening bolt (8) is threadedly inserted through the threaded hole (72) and is tightened against one side of the tension spring (6) in the through hole (71).

5. The device for detecting the adhesion of a mobile phone screen protective film according to claim 1, characterized in that: The driving member comprises a lifting cylinder (3), the lifting cylinder (3) is fixedly mounted on the upper end of the mounting frame (2), the piston rod of the lifting cylinder (3) extends vertically downward and the lower end is fixed to the upper end surface of the movable plate (4).

6. The device for detecting the adhesion of a mobile phone screen protective film according to claim 3, characterized in that: The lower end of the connecting block (7) located at the lower end of the tension spring (6) is detachably fixed to the upper end of the suction cup (5) via a connecting structure; The connection structure comprises a thread groove (73) and a connection stud (51); the thread groove (73) is formed at the lower end of the connection block (7) and is vertically arranged; the connection stud (51) is fixed to the upper end of the suction cup (5); and the connection stud (51) is threadedly connected in the thread groove (73).

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