Auxiliary laminating device for limiting degree of freedom through cooperation of machine body and positioner

Abstract

The utility model discloses an auxiliary laminating device for limiting degree of freedom by matching of a machine body and a positioner, which belongs to the technical field of electronic equipment accessories and comprises a bottom plate, a left-right positioning strip, a front-back positioning strip and a cotton strip, steps are arranged at the bottoms of the left-right positioning strip, and the surface of the cotton strip is lower than the steps and the front-back positioning strip. The cotton slivers limit the bottom surface of the membrane group, the steps and the inner sides of the front and rear positioning strips limit the periphery of the membrane group, the steps and the surfaces of the front and rear positioning strips limit the bottom surface of equipment, and the inner sides of the left and right positioning strips and the corners position the peripheral side of the equipment. The left and right positioning strips can be bonded by a plurality of flat strips, grooves for avoiding equipment keys are formed in the inner sides, the steps are flush with the top surfaces of the front and back positioning strips, and the cotton strip is located in the center of the bottom plate. According to the utility model, six degrees of freedom of the tempered film are limited through mechanical cooperation, a positioning film is not needed, the laminating precision is improved by more than 20%, the weight is reduced by more than 30%, energy is saved, the environment is protected, an anti-fingerprint oil coating of the tempered film is protected, and the equipment adaptability is strong.

Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories technology, specifically to a tempered glass film auxiliary bonding device for electronic devices such as tablet computers and smartphones. Background Technology

[0002] In the field of screen protector application for electronic devices, the following problems are commonly found in the traditional tempered glass screen protector application process:

[0003] Insufficient positioning accuracy: Relying on manual alignment or additional positioning film (such as "positioning sticker"), it is prone to misalignment and has a low bonding success rate;

[0004] Complex operation: Multiple adjustments are required, especially for curved screens or large-sized devices (such as tablets), making fitting difficult;

[0005] Material waste and environmental issues: Positioning films are mostly for single use, generating waste; at the same time, contact between the positioning film and the tempered glass surface may damage the anti-fingerprint coating, affecting the user experience;

[0006] Poor equipment compatibility: Traditional film application tools are difficult to be compatible with the buttons, interfaces and other structures of different models of equipment, requiring frequent mold replacements.

[0007] In existing technologies, some film applicators are positioned using magnetic attraction or snap-fit, but these are complex in structure, heavy, and costly. Therefore, there is an urgent need for a lightweight, high-precision, and environmentally friendly auxiliary bonding device that directly restricts the degrees of freedom of the tempered glass film through a mechanical structure, avoiding the defects of additional positioning components. Utility Model Content

[0008] In view of this, the present invention provides an auxiliary bonding device that limits the degree of freedom through the mechanical cooperation between the body and the positioner, so as to achieve precise positioning of tempered glass film, reduce material waste, and improve bonding efficiency and user experience.

[0009] This utility model provides an auxiliary bonding device that limits the degree of freedom by cooperating with the body and a positioner. It includes a base plate and left and right positioning strips installed on the left and right sides of the base plate, and front and rear positioning strips on the front and rear of the base plate. A cotton strip is also provided on the surface of the base plate. The bottom of the left and right positioning strips extends towards the center to form a step, and the surface of the cotton strip is lower than the step and the front and rear positioning strips. The cotton strip is used to restrict the bottom surface of the film assembly, and the inner sides of the step and the front and rear positioning strips restrict the perimeter of the film assembly. The surfaces of the step and the front and rear positioning strips restrict the bottom surface of the device to be bonded. The inner sides and the curved corners at the ends of the left and right positioning strips are used to position the perimeter of the device to be bonded. This technical solution eliminates the need for additional positioning films or magnetic components, achieving positioning through pure mechanical cooperation, reducing material costs, and lowering product weight by more than 30%, conforming to the trend of lightweighting. It avoids contact between traditional positioning films and tempered glass surfaces, preventing damage to the anti-fingerprint coating and improving the user's touch experience.

[0010] Further description of the aforementioned solution: the left and right positioning strips are made of multiple flat positioning strips bonded together, which enhances the bending resistance of the positioning strips, prevents deformation after long-term use, and improves durability.

[0011] Further description of the aforementioned solution: the inner side of the left and right positioning strips is provided with several grooves to avoid the tablet computer buttons, reserving space for the side buttons of the tablet computer, avoiding interference between the positioning strips and the buttons, ensuring that the device is fully embedded in the bonding device, and not affecting the positioning accuracy.

[0012] Further description of the aforementioned solution: the inner side of the front and rear positioning strips is provided with grooves to avoid the tablet computer buttons. For the front or rear protruding structure of the tablet computer, the front and rear positioning strips are prevented from obstructing the functional components of the device, ensuring that the bottom surface of the device is completely in contact with the step and the top surface of the positioning strip when the device is placed.

[0013] Further describing the aforementioned solution, the step is flush with the top surface of the front and rear positioning strips, ensuring that the bottom surface of the device to be coated is evenly stressed, avoiding tilting of the device due to height differences, and further improving the coating accuracy.

[0014] Further description of the aforementioned scheme: the cotton strip is located in the center of the top plate surface, uniformly supporting the middle of the tempered glass film.

[0015] Compared with existing technologies, this utility model fully restricts the degree of freedom through mechanical cooperation, improving the fitting accuracy by more than 20% and avoiding manual alignment errors; it eliminates the need for additional components such as positioning films, simplifying the structure, reducing weight by more than 30%, and lowering material costs; it saves disposable positioning films, reducing waste and conforming to the trend of green design; it avoids the positioning film from contacting the tempered glass film surface, protecting the anti-fingerprint coating and improving the user's feel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 A schematic diagram illustrating the use of this utility model according to an embodiment;

[0019] Figure 3 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 4 This is a partial enlarged schematic diagram (A) provided for an embodiment of the present utility model;

[0021] Figure 5 Top view provided for an embodiment of this utility model;

[0022] Figure 6 A schematic cross-sectional view of BB provided for an embodiment of this utility model;

[0023] Figure 7 A schematic diagram of the CC cross-section provided for an embodiment of this utility model;

[0024] Figure 8 This is a partially enlarged cross-sectional view provided for an embodiment of the present utility model.

[0025] The following are the labeling elements in the figure:

[0026] 1. Base plate; 2. Left and right positioning strips; 21. Step; 22. Corner; 3. Cotton strip; 4. Front and rear positioning strips; 5. Tempered glass film; 6. Release film; 61. Pull strip; 7. Tablet PC.

[0027] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Please see Figures 1-8 As shown, this embodiment discloses an auxiliary bonding device that limits the degree of freedom by cooperating with the device body and the locator, suitable for precise bonding of tempered glass screen protectors 5 to electronic devices such as tablet computers 7 and smartphones. The bonding device includes a base plate 1, left and right positioning strips 2, front and rear positioning strips 4, and cotton strips 3.

[0031] The base plate 1, serving as the basic support structure, can be made of ABS engineering plastic, which features high strength, wear resistance, and ease of processing. Its surface is flat and smooth to ensure the stability of the tempered glass film 5 during placement. Left and right positioning strips 2 are installed on the left and right sides of the base plate 1, extending from their bottoms towards the center to form steps 21. The surface of these steps 21 is flush with the top surfaces of the front and rear positioning strips 4, together forming a horizontal support plane. This plane restricts the bottom position of the device to be coated, ensuring even force distribution and preventing tilting due to height differences. The inner sides and ends of the left and right positioning strips 2 bend inwards to form bends 22. These bends 22 contact the periphery of the device to be coated, mechanically restricting the device's rotational freedom in space. The front and rear positioning strips 4 are installed at the front and rear ends of the base plate 1. Their inner sides, together with the inner sides of the steps 21 of the left and right positioning strips 2, restrict the movement of the tempered glass film 5 around its perimeter, achieving precise positioning within the plane.

[0032] like Figure 3 As shown, the cotton strip 3 is positioned in the center of the base plate 1, made of high-density sponge or silicone. Its surface height is lower than the top surface of the step 21 and the front and rear positioning strips 4. This provides support for the center of the tempered glass film 5, preventing the film assembly from becoming suspended or deformed due to overly tight positioning around the edges, while also avoiding interference with the positioning of the edges of the tempered glass film 5. Specifically, the height of the cotton strip 3 can be set to 4-8mm, 1-2mm lower than the top surface of the step 21 and the front and rear positioning strips 4. The slight friction of the soft material prevents the tempered glass film 5 from sliding during placement, while ensuring that the edges of the tempered glass film 5 can be embedded within the limiting structure formed by the inner sides of the step 21 and the front and rear positioning strips 4.

[0033] In this embodiment, the left and right positioning strips 2 are made of multiple flat positioning strips bonded together. For example, they can be made of three layers of flat PET positioning strips bonded together with epoxy resin. The layered structure increases the strength of the positioning strips, improves their bending resistance, and prevents deformation after long-term use. At the same time, it is easy to adjust the number of layers according to the thickness of different devices, enhancing the adaptability. Several grooves are provided on the inner side of the left and right positioning strips 2 and the inner side of the front and rear positioning strips 4. These grooves are customized according to the button, interface and other structures of different models of devices. For example, for the volume buttons, power buttons, home buttons and other protruding parts of the tablet computer 7, grooves of corresponding shapes and sizes are processed on the inner side of the positioning strips to avoid the device buttons, ensure that the device can be completely embedded in the bonding device without affecting the positioning accuracy, and prevent the buttons from being squeezed and causing accidental device activation.

[0034] During assembly, firstly, the left and right positioning strips 2 and the front and rear positioning strips 4 are fixed to their respective positions on the base plate 1 using screws or glue, ensuring that the flatness error between the surface of the step 21 and the top surface of the front and rear positioning strips 4 is within a reasonable range to guarantee the uniformity of the supporting plane. Then, the cotton strip 3 is installed in the center of the base plate 1 using double-sided tape or other fixing methods, ensuring that its position is centered and firmly fixed. After assembly, the positional accuracy and fitting clearance of each component are checked using calibration tools.

[0035] In use, first place the tempered glass film 5, with the release film 6 and pull strip 61 attached, bottom side up, on the base plate 1, ensuring its left and right sides align with the inner sides of the steps 21 of the left and right positioning strips 2, and its front and back sides abut against the inner sides of the front and back positioning strips 4. The cotton strip 3 supports the center of the tempered glass film 5. Next, place the device screen to be covered into the bonding device, screen down, so that the device's perimeter contacts the inner sides of the bends 22 of the left and right positioning strips 2, and the bottom surface of the device is fully attached to the steps 21 and the top surface of the front and back positioning strips 4. At this point, the cooperation between the device and the positioning device restricts the tempered glass film 5's three-dimensional and rotational degrees of freedom in space, achieving full restriction of all six degrees of freedom. Finally, pull strip 61 at a uniform speed. While peeling off the release film 6, the tension and the positioning device's restraining effect automatically align the tempered glass film 5 with the device screen, completing precise bonding.

[0036] To adapt to different models of equipment, the bonding device can adjust the extension width of the step 21, the position of the bend 22, and the shape and size of the groove by replacing the left and right positioning strips 2 and the front and rear positioning strips 4 of different specifications, so as to fit the size and structural characteristics of different devices such as mobile phones and laptops.

[0037] In terms of material selection, in addition to ABS engineering plastics and PET positioning strips, the base plate 1 can also use bio-based plastics such as polylactic acid to meet environmental protection requirements; the bonding process of the positioning strips can use ultrasonic welding instead of glue to reduce the emission of volatile organic compounds and improve the connection strength.

[0038] This invention, through innovative mechanical structure design, eliminates the need for additional positioning films or complex electronic components. High-precision positioning of the tempered glass screen protector 5 is achieved solely through the cooperation of the machine body and the positioner. It boasts advantages such as simple structure, lightweight design, environmental friendliness, and strong equipment compatibility. Testing shows that using this applicator for screen protector application improves application accuracy by over 20% compared to traditional methods, reduces product weight by over 30%, and eliminates the need for disposable positioning films, effectively reducing material waste and aligning with green design trends. Furthermore, preventing the positioning film from contacting the tempered glass screen protector 5 surface protects its anti-fingerprint coating, enhancing the user experience.

[0039] The above specific embodiments illustrate the technical solution, structural details, and application scenarios of this utility model. The described embodiments are only a part of, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The protection scope of this utility model is not limited to the above embodiments; all equivalent transformations, improvements, or substitutions made based on the concept and principles of this utility model should be covered within the scope of the claims of this utility model.

[0040] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the foregoing claims.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.

[0042] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. An auxiliary bonding device that limits degrees of freedom by cooperating between the body and a positioner, characterized in that: Includes a base plate (1) and left and right positioning strips (2) installed on the left and right sides of the base plate (1), and front and back positioning strips (4) installed on the front and back of the base plate (1). The surface of the base plate (1) is also provided with cotton strips (3). The bottom of the left and right positioning strips (2) extends towards the center to form a step (21). The surface of the cotton strips (3) is lower than the step (21) and the front and back positioning strips (4). The cotton strips (3) are used to restrict the bottom surface of the film assembly. The inner side of the step (21) and the front and back positioning strips (4) restricts the periphery of the film assembly. The surface of the step (21) and the surface of the front and back positioning strips (4) restrict the bottom surface of the device to be filmed. The inner side of the left and right positioning strips (2) and the bend (22) at the end are used to position the periphery of the device to be filmed.

2. The auxiliary bonding device according to claim 1, which limits the degree of freedom by the cooperation of the machine body and the positioner, is characterized in that: The left and right positioning strips (2) are made of multiple flat positioning strips bonded together.

3. The auxiliary bonding device according to claim 1, which limits the degree of freedom by cooperating with the body and the positioner, is characterized in that: The inner side of the left and right positioning strips (2) is provided with several grooves for avoiding the buttons of the tablet computer (7).

4. The auxiliary bonding device according to claim 1, which limits the degree of freedom by the cooperation of the machine body and the positioner, is characterized in that: The inner side of the front and rear positioning strips (4) is provided with a groove for avoiding the buttons of the tablet computer (7).

5. The auxiliary bonding device according to claim 1, which limits the degree of freedom by cooperating with the body and the positioner, is characterized in that: The step (21) is flush with the top surface of the front and rear positioning strips (4).

6. The auxiliary bonding device according to claim 1, which limits the degree of freedom by cooperating between the machine body and the positioner, is characterized in that: The cotton strip (3) is located in the center of the top plate surface.

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