Back adhesive attaching jig
By designing an adhesive bonding fixture, utilizing the structure of contoured grooves and clearance sections, combined with a vacuum generator and adsorption holes, the problem of low alignment accuracy during the adhesive bonding process of display modules was solved, achieving efficient and precise adhesive bonding and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TONGLI PHOTOELECTRIC CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-06-05
AI Technical Summary
In the existing technology, the application process of adhesive backing for display modules suffers from low alignment accuracy and easy deformation, resulting in a reduced product qualification rate.
An adhesive bonding fixture was designed, comprising a contoured groove and a clearance section for accommodating the adhesive and clearing the non-adhesion areas of the display module. Combined with a vacuum generator and an adsorption hole, it ensures that the adhesive is stably adhered to the surface of the display module.
It improves the alignment accuracy and quality of adhesive backing, ensures the efficiency and precision of adhesive backing application on the display module surface, avoids damage caused by hard contact, and improves the product qualification rate.
Smart Images
Figure CN224323588U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of adhesive bonding fixture technology, and in particular to an adhesive bonding fixture. Background Technology
[0002] Currently, smart displays are widely used in businesses, homes, and social activities, with higher requirements for quality and appearance. In daily life, we often see electronic products with interactive screens, such as mobile phones, computers, tablets, and car infotainment systems. During the production process, display modules typically require adhesive backing and other auxiliary materials to be applied to the edges of the touchscreen to facilitate assembly of the display module into the electronic product.
[0003] Typically, the adhesive backing on display modules is applied manually, which results in low alignment accuracy and the adhesive being easily stretched and deformed during application, thus reducing the product qualification rate. Utility Model Content
[0004] Therefore, it is necessary to provide an adhesive bonding fixture to address the problem of poor adhesive bonding quality of display modules.
[0005] An adhesive-backed bonding fixture is used to apply adhesive backing to the surface of a display module, the adhesive-backed bonding fixture comprising:
[0006] The fixture body has at least one contour groove and a clearance portion. The contour groove is used to accommodate the adhesive backing, and when the adhesive backing is accommodated in the contour groove, the surface of the adhesive backing to be attached protrudes outside the contour groove. The clearance portion is used to avoid the non-attachment area of the display module.
[0007] In one embodiment, there are multiple contour grooves, and the multiple contour grooves are spaced apart along the circumferential direction of the fixture body.
[0008] In one embodiment, the fixture body is provided with a plurality of adsorption holes, and each of the contour grooves is connected to a plurality of adsorption holes, and when the adhesive is placed in the contour groove, the adsorption holes adsorb the adhesive.
[0009] In one embodiment, the adhesive attachment fixture further includes a vacuum generator and an air extraction channel, wherein the vacuum generator is connected to the air extraction channel, and the air extraction channel is connected to a plurality of the adsorption holes.
[0010] In one embodiment, a plurality of the adsorption holes are spaced apart along the extension direction of the contour groove.
[0011] In one embodiment, there are four contour grooves, and the four contour grooves are arranged close to the edge of the fixture body.
[0012] In one embodiment, the clearance portion includes at least one clearance groove capable of accommodating a non-attached area of the display module.
[0013] In one embodiment, when the adhesive backing is contained within the contour groove, at least one end of the adhesive backing protrudes outside the contour groove.
[0014] In one embodiment, the adhesive attachment fixture further includes a limiting component disposed on the fixture body, the limiting component being able to abut against the edge side of the display module to define the position between the display module and the adhesive.
[0015] In one embodiment, the limiting component includes at least one protrusion that is slidably disposed on the fixture body and can abut against the edge side of the display module.
[0016] In the aforementioned adhesive bonding fixture, during the bonding operation between the display module and the adhesive, the display module mates with the fixture body, and the adhesive surface protruding beyond the contour groove adheres to the display module, thus automatically bonding the adhesive to the display module. The adhesive bonding fixture provided in this application has the adhesive surface protruding beyond the contour groove, allowing the adhesive to contact the display module and automatically complete the bonding. The avoidance portion avoids non-bonding areas of the display module (such as FPC boards), ensuring the alignment accuracy between the display module and the fixture body and improving the bonding quality of the adhesive on the display module surface. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the adhesive-backed attachment fixture provided in some embodiments.
[0018] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle.
[0019] Figure 3 This is a top view of the adhesive-backed attachment fixture provided in some embodiments.
[0020] Figure label:
[0021] 100. Adhesive-backed fixture attached;
[0022] 110. Fixture body; 111. Contouring groove; 112. Clearance part; 1121. Clearance groove; 113. Adsorption hole; 120. Air extraction channel; 130. Limiting component; 131. Protrusion. Detailed Implementation
[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0024] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0025] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0027] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0029] The technical solutions provided by the embodiments of this application are described below with reference to the accompanying drawings.
[0030] See Figure 1 As shown, this application provides an adhesive-backed adhesive attachment fixture 100, which includes a fixture body 110. The adhesive-backed adhesive attachment fixture 100 is used to attach adhesive to the surface of a display module. In this embodiment, the adhesive can be double-sided tape, black and white adhesive, UV adhesive, thermally conductive adhesive, etc. This application does not limit the specific type of adhesive.
[0031] The fixture body 110 is provided with at least one contour groove 111 and a clearance portion 112. Preferably, the contour groove 111 is integrally formed into the fixture body 110 by injection molding, extrusion, or other methods to simplify the molding process of creating the contour groove 111 in the fixture body 110. The contour groove 111 is used to accommodate the adhesive backing; that is, the contour groove 111 is opened according to the contour of the adhesive backing to be accommodated, facilitating the accommodation of the adhesive backing. When the adhesive backing is accommodated in the contour groove 111, the surface of the adhesive backing to be applied protrudes outside the contour groove 111, allowing the surface of the adhesive backing to be applied to contact the display module. When the surface of the adhesive backing to be applied contacts the display module, the surface of the adhesive backing to be applied can be attached to the display module, automatically completing the adhesive backing application operation on the surface of the display module. The clearance portion 112 is used to avoid non-attachment areas of the display module. Since the display module has components such as FPC (Flexible Printed Circuit), driving circuit, and packaging components in the non-attachment area, the avoidance part 112 avoids the non-attachment area of the display module, so that the display module can make flat contact with the adhesive and complete the attachment operation, thereby improving the adhesion quality of the adhesive on the surface of the display module and avoiding damage to the display module due to hard contact between the fixture body 110 and the display module.
[0032] In the aforementioned adhesive bonding fixture 100, during the bonding operation between the display module and the adhesive, the display module mates with the fixture body 110, and the adhesive surface protruding outside the contour groove 111 is bonded to the display module, thus automatically bonding the adhesive to the display module. The adhesive surface protruding outside the contour groove 111 allows the adhesive to contact the display module and automatically complete the bonding process. The clearance portion 112 avoids non-bonding areas of the display module (such as FPC boards, drive circuits, etc.) to ensure the alignment accuracy between the display module and the fixture body 110, thereby improving the bonding quality of the adhesive on the display module surface.
[0033] In one embodiment, see Figure 1 As shown, there are multiple contour grooves 111, and these multiple contour grooves 111 are spaced apart along the circumferential direction of the fixture body 110. In this way, multiple contour grooves 111 can simultaneously accommodate multiple adhesive backings. When performing the bonding operation between the display module and the adhesive backing, multiple adhesive backings can be bonded to the surface of the display module at the same time, improving the bonding efficiency of the adhesive backings on the surface of the display module.
[0034] Since display modules are typically rectangular or cuboid in shape, four adhesive backings need to be attached to the edges of the display module. Therefore, see [link / reference needed]. Figure 1As shown, there are four contouring grooves 111, which are spaced apart along the circumferential direction of the fixture body 110 and are located close to the edge of the fixture body 110. Thus, for a cuboid or similar cuboid display module, four adhesive backings can be simultaneously applied to the four edges of the display module, requiring only one application to complete the adhesive application operation on the display module surface, thereby improving the efficiency of adhesive application on the display module surface.
[0035] It should be noted that in other feasible embodiments, the number of contouring slots 111 is not limited to the four provided above. For example, for a hexagonal display module, the number of contouring slots 111 provided in the fixture body 110 can be six; and for an octagonal display module, the number of contouring slots 111 provided in the fixture body 110 can be eight. This application does not limit the specific number of contouring slots 111 provided in the fixture body 110.
[0036] In one embodiment, see Figure 1 and Figure 2 As shown, the fixture body 110 is provided with multiple adsorption holes 113. Preferably, the adsorption holes 113 are integrally formed into the fixture body 110 by injection molding, extrusion, or other methods to simplify the molding process of opening the adsorption holes 113 on the fixture body 110. Each contoured groove 111 is connected to multiple adsorption holes 113. For example, if the fixture body 110 has four contoured grooves 111, each contoured groove 111 is connected to multiple adsorption holes 113. When the adhesive is placed in the contoured groove 111, the adsorption holes 113 adsorb the adhesive. In this way, by adsorbing the adhesive into the contoured groove 111 through the adsorption holes 113, the placement stability of the adhesive on the fixture body 110 can be ensured, and the adhesion quality can be avoided due to displacement deviation of the adhesive during the application process.
[0037] Specifically, see Figure 1 and Figure 2 As shown, the adhesive bonding fixture 100 also includes a vacuum generator and an air extraction channel 120. The vacuum generator is connected to the air extraction channel 120, which is connected to multiple adsorption holes 113. The vacuum generator extracts air from the adsorption holes 113, allowing the adhesive to be stably contained in the contour groove 111 under negative pressure. For example, after the adhesive is contained in the contour groove 111, the vacuum generator extracts air from the adsorption holes 113 through the air extraction channel 120. The adsorption holes 113 are under negative pressure, and the adhesive is adsorbed into the contour groove 111 by the negative pressure. This improves the efficiency of adhesive placement and facilitates the removal and separation of the adhesive from the fixture body 110 after the adhesive is attached to the display module.
[0038] In this embodiment, the vacuum generator can be a jet vacuum generator, a volumetric vacuum generator, etc. This application does not limit the specific component type of the vacuum generator.
[0039] Further, see Figure 1 and Figure 2 As shown, a plurality of adsorption holes 113 are spaced apart along the extending direction of the contour groove 111. For example, see [reference needed]. Figure 1 As shown, if the contoured groove 111 extends along the X direction, then the plurality of adsorption holes 113 within the contoured groove 111 are also spaced apart along the X direction. If the contoured groove 111 extends along the Y direction, then the plurality of adsorption holes 113 within the contoured groove 111 are also spaced apart along the Y direction. Thus, by having a plurality of adsorption holes 113 spaced apart along the extension direction of the contoured groove 111, when the contoured groove 111 contains adhesive, the plurality of adsorption holes 113 can adsorb different areas of the adhesive respectively, thereby ensuring the flatness of the adhesive within the contoured groove 111 and further improving the adhesion quality between the display module and the adhesive.
[0040] In one embodiment, see Figure 1 As shown, the clearance portion 112 includes at least one clearance groove 1121, which can accommodate the non-attached area of the display module. Preferably, the clearance groove 1121 can be a through hole or blind hole structure that penetrates at least part of the fixture body 110. The clearance groove 1121 is integrally formed on the fixture body 110 by injection molding, extrusion, or other methods to simplify the molding process of forming the clearance groove 1121 on the fixture body 110. For example, when the display module is mated to the fixture body 110, the non-attached area of the display module sinks into the clearance groove 1121, allowing the display module to contact the adhesive backing and preventing the non-attached area of the display module from interfering with the adhesive backing application operation.
[0041] It should be noted that the relief groove 1121 is adapted to the outline and number of the non-attached area of the display module. The specific shape and number of the relief groove 1121 are not limited here and can be adapted to the attachment requirements.
[0042] In one embodiment, see Figure 1 and Figure 2 As shown, when the adhesive backing is placed in the contour groove 111, at least one end of the adhesive backing protrudes to the outside of the contour groove 111. Since the surface of the adhesive backing usually has a release film, by having at least one end of the adhesive backing protrude to the outside of the contour groove 111, the operator can perform the release film separation operation at the end of the adhesive backing that protrudes to the outside of the contour groove 111, which facilitates the separation operation of the release film on the surface of the adhesive backing.
[0043] In this embodiment, during the cutting process of the adhesive backing, the adhesive backing can be cut to a length slightly longer than the contour groove 111, so that when the adhesive backing is placed in the contour groove 111, at least one end of the adhesive backing protrudes outside the contour groove 111, making it convenient for the operator to perform the separation operation of the release film on the surface of the adhesive backing.
[0044] In one embodiment, see Figures 1-3 As shown, the adhesive bonding fixture 100 also includes a limiting component 130. The limiting component 130 is disposed on the fixture body 110 and can abut against the edge of the display module. The limiting component 130 is used to limit the position between the display module and the adhesive. Thus, when the display module is fitted onto the fixture body 110, the limiting component 130 abuts against the edge of the display module, limiting the relative position between the display module and the fixture body 110, thereby limiting the relative position between the display module and the adhesive, to ensure the bonding position accuracy and bonding quality of the adhesive on the display module surface.
[0045] Specifically, see Figures 1-3 As shown, the limiting component 130 includes at least one protrusion 131, which can abut against the edge side of the display module. For example, when the display module needs to be fitted onto the fixture body 110, the operator places the display module onto the fixture body 110 by suction, gripping, or holding, with the edge side of the display module abutting against the protrusion 131 to limit the relative position between the display module and the adhesive backing, thereby ensuring the accuracy and quality of the adhesive backing application on the display module surface.
[0046] Furthermore, the protrusion 131 is slidably positioned relative to the fixture body 110. When limiting the display modules of different specifications, the protrusion 131 slides relative to the fixture to adapt to the contact limiting of the display modules of different specifications, thereby expanding the application scenarios of the adhesive-backed mounting fixture 100.
[0047] Preferably, in this embodiment, there are four protrusions 131, which are spaced apart along the circumferential direction of the fixture body 110. The four protrusions 131 can define the four edges of the display module to ensure the reliability of the positioning and contact of the display module. Of course, in other feasible embodiments, the number of protrusions 131 can be other, such as the number of protrusions 131 can be adaptively set according to the specific structure of the display module. This application does not limit the specific number and setting position of the protrusions 131.
[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0049] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A fixture for attaching adhesive backing, used for attaching adhesive backing to the surface of a display module, characterized in that, The adhesive-backed attachment fixture includes: The fixture body has at least one contour groove and a clearance portion. The contour groove is used to accommodate the adhesive backing, and when the adhesive backing is accommodated in the contour groove, the surface of the adhesive backing to be attached protrudes outside the contour groove. The clearance portion is used to avoid the non-attachment area of the display module.
2. The adhesive-backed bonding fixture according to claim 1, characterized in that, There are multiple contour grooves, and the multiple contour grooves are spaced apart along the circumferential direction of the fixture body.
3. The adhesive-backed bonding fixture according to claim 2, characterized in that, The fixture body is provided with multiple adsorption holes, and each of the contour grooves is connected to multiple adsorption holes. When the adhesive is placed in the contour groove, the adsorption holes adsorb the adhesive.
4. The adhesive-backed bonding fixture according to claim 3, characterized in that, The adhesive-backed mounting fixture also includes a vacuum generator and an air extraction channel. The vacuum generator is connected to the air extraction channel, and the air extraction channel is connected to multiple adsorption holes.
5. The adhesive-backed bonding fixture according to claim 3, characterized in that, The plurality of adsorption holes are spaced apart along the extension direction of the contour groove.
6. The adhesive-backed bonding fixture according to claim 2, characterized in that, There are four contour grooves, and the four contour grooves are arranged close to the edge of the fixture body.
7. The adhesive-backed bonding fixture according to claim 1, characterized in that, The clearance portion includes at least one clearance groove, which is capable of accommodating the non-attached area of the display module.
8. The adhesive-backed bonding fixture according to claim 1, characterized in that, When the adhesive backing is contained within the contour groove, at least one end of the adhesive backing protrudes outside the contour groove.
9. The adhesive-backed bonding fixture according to claim 1, characterized in that, The adhesive bonding fixture also includes a limiting component, which is disposed on the fixture body and can abut against the edge of the display module to limit the position between the display module and the adhesive.
10. The adhesive-backed bonding fixture according to claim 9, characterized in that, The limiting component includes at least one protrusion, which is slidably disposed on the fixture body and can abut against the edge side of the display module.