Auxiliary laminating jig for 3D (three-dimensional) cover plate
By designing an auxiliary bonding fixture for 3D cover plates, the guide film is uniformly clamped using long and short side clamping components. This solves the problem of poor pull-down conformation effect at the short side position in the prior art, improves bonding quality, and reduces the generation of defective products.
Patent Information
- Application Number
- CN202520194613.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing 3D cover plate bonding fixtures have poor clamping and pulling-down shaping effect at the short side position, resulting in problems such as glue overflow, air bubbles and indentations.
Design an auxiliary bonding fixture including a cover plate receiving component, a silicone base, a long side clamping component, and a short side clamping component. The design of the long side and short side clamping components ensures that the guide film is evenly clamped during the bonding process, achieving a contouring effect on the long and short sides and avoiding the generation of excess glue and air bubbles.
This improves the bonding quality between the 3D cover plate and the guide film, reduces the generation of defective products, and ensures a tighter and more uniform bonding.
Smart Images

Figure CN223864329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of 3D film bonding technology, and in particular to an auxiliary bonding fixture for 3D cover plates. Background Technology
[0002] In the production process of 3D cover plates, decorative films with color effects are typically laminated to the concave surface of the 3D cover plate. Existing technology achieves this by using a lamination process structure consisting of a curved cover plate and a PET film (PET 50um + OCA 25um). The main lamination method involves attaching a guide film to the colored film, fixing the guide film with machine clamps, pulling it down to conform to the shape of the film, determining the lamination position using CCD imaging, and then applying silicone to adhere the film to the curved cover plate. Further reinforcement is achieved through high-temperature, high-pressure debubbling to improve overall performance and ensure reliability testing.
[0003] The existing machine only fixes the two long sides of the guide film and pulls them down to conform to the shape. The short side position does not fit the product shape very poorly when it is not pulled down, which will cause serious problems such as glue overflow, bubbles, and indentations on the short side.
[0004] Therefore, a new solution is needed. Utility Model Content
[0005] The main purpose of this invention is to provide an auxiliary bonding fixture for 3D cover plates, which addresses the problem of excess glue and air bubbles caused by the lack of clamping and pulling down of the short side of the diaphragm in existing bonding fixtures.
[0006] To achieve the above objectives, this utility model provides an auxiliary bonding fixture for 3D cover plates, comprising a cover plate receiving assembly, a silicone base, two long-side clamping assemblies, two short-side clamping assemblies, and a silicone assembly. The 3D cover plate is placed in the cover plate receiving assembly, the silicone assembly is housed in the silicone base, a guide film is placed above the silicone assembly, the two long-side clamping assemblies clamp the two long sides of the guide film respectively, and the two short-side clamping assemblies clamp the two short sides of the guide film respectively.
[0007] In the auxiliary bonding fixture for 3D cover plates provided by this utility model, the contact surface between the cover plate receiving component and the 3D cover plate is concave.
[0008] In the auxiliary bonding fixture for 3D cover plates provided by this utility model, the short side clamping assembly includes a fixed base plate and a clamping unit, and the clamping unit is slidably connected to the fixed base plate.
[0009] In the auxiliary bonding fixture for 3D cover plates provided by this utility model, the clamping unit includes an upper cover plate and a lower cover plate. One end of the upper cover plate and one end of the lower cover plate are hinged together, and the lower surface of the lower cover plate is slidably connected to the upper surface of the fixed base plate.
[0010] In the auxiliary bonding fixture for 3D cover plates provided by this utility model, the lower surface of the upper cover plate is provided with a plurality of first mounting holes, and the upper surface of the lower cover plate is provided with a plurality of second mounting holes, wherein magnets are respectively placed in the first mounting holes and the second mounting holes.
[0011] The auxiliary bonding fixture for 3D cover plates provided by this utility model has the following beneficial effects: The auxiliary bonding fixture for 3D cover plates provided by this utility model, through the design of long and short side clamping components, ensures that the guide film is evenly clamped during the bonding process, avoiding poor bonding caused by uneven clamping; during the clamping and pulling-down process, the long and short sides simultaneously produce a contouring effect, ensuring a tighter bond between the guide film and the 3D cover plate, reducing the generation of air bubbles and excess adhesive; through the use of this fixture, the bonding quality between the 3D cover plate and the guide film can be significantly improved, reducing the generation of defective products. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0013] Figure 1 The figure shown is an exploded view of an auxiliary bonding fixture for 3D cover plates provided in an embodiment of the present invention.
[0014] Figure 2 The image shown is a side view of an auxiliary bonding fixture for 3D cover plates provided in an embodiment of this utility model. Detailed Implementation
[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate typical embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0017] Figure 1 The figure shown is an exploded view of an auxiliary bonding fixture for 3D cover plates provided in an embodiment of the present invention. Figure 2 The image shown is a side view of an auxiliary bonding fixture for a 3D cover plate according to an embodiment of this utility model. Figure 1 and Figure 2 As shown, the auxiliary bonding fixture for 3D cover plates provided by this utility model includes a cover plate receiving assembly 100, a silicone base 200, two long-side clamping assemblies 300, two short-side clamping assemblies 400, and a silicone assembly 500. The 3D cover plate 600 is placed in the cover plate receiving assembly 100, the silicone assembly 500 is housed in the silicone base 200, a guide film 700 is placed above the silicone assembly 500, the two long-side clamping assemblies 300 clamp the two long sides of the guide film 700 respectively, and the two short-side clamping assemblies 400 clamp the two short sides of the guide film 700 respectively. In this invention, the cover plate receiving assembly 100 is used to place the 3D cover plate 600 to ensure its stability during the bonding process; the silicone base 200 is used to accommodate the silicone assembly 500 to ensure uniform pressure distribution during the bonding process; the long side clamping assembly 300 clamps the two long sides of the guide film 700 respectively to ensure that the guide film at the long side position can be effectively clamped during the bonding process; the short side clamping assembly 400 clamps the two short sides of the guide film 700 respectively to ensure that the guide film at the short side position can be effectively clamped during the bonding process; the silicone assembly 500 is placed in the silicone base 200 to provide uniform pressure during the bonding process and ensure the bonding effect between the guide film and the 3D cover plate. In use, the 3D cover plate 600 is placed in the cover plate receiving assembly 100, the silicone assembly 500 is housed in the silicone base 200, and the guide film 700 is placed above the silicone assembly 500. During the process of the silicone assembly being pushed up, the guide film 700 begins to adhere to the 3D cover plate 600. The long side clamping assembly 300 and the short side clamping assembly 400 clamp the four sides of the guide film 700 respectively, ensuring that the guide film is effectively clamped during the adhesion process. Thus, during the clamping and pulling down process, the long and short sides simultaneously produce a contouring effect, avoiding problems such as excess glue, bubbles, and indentations.
[0018] This utility model provides an auxiliary bonding fixture for 3D cover plates. Through the design of long and short side clamping components, it ensures that the guide film is evenly clamped during the bonding process, avoiding poor bonding caused by uneven clamping. During the clamping and pulling-down process, the long and short sides simultaneously produce a contouring effect, ensuring a tighter bond between the guide film and the 3D cover plate, reducing the generation of air bubbles and excess adhesive. Using this fixture significantly improves the bonding quality between the 3D cover plate and the guide film, reducing the production of defective products.
[0019] Furthermore, in the auxiliary bonding fixture for 3D cover plates provided by this utility model, the short-side clamping assembly 400 includes a fixed base plate 410 and a clamping unit 420, wherein the clamping unit 420 is slidably connected to the fixed base plate 410. The fixed base plate is the basic part of the short-side clamping assembly, used to support and fix the clamping unit 420. The base plate is provided with a slide rail or guide groove for sliding connection with the clamping unit 420, allowing the clamping unit to move along the fixed base plate. The clamping unit 420 is used to directly clamp the short side of the guide film, and is slidably connected to the fixed base plate 410 through the slide rail or guide groove, allowing it to move along the fixed base plate. This design allows the position of the clamping unit to be adjusted according to the size and position of the guide film, improving the applicability and flexibility of the fixture. During use, the operator slides the clamping unit 420 along the fixed base plate 410 according to the size and position of the guide film, so that it is aligned with the short side of the guide film; during the process of the silicone component 500 being pushed up, the short side clamping component 400 ensures that the short side of the guide film is evenly clamped to avoid displacement or lifting, thereby achieving high-quality bonding.
[0020] In this invention, the clamping unit 420 is slidably connected to the fixed base plate 410, allowing its position to be flexibly adjusted according to the size and position of the guide film, making it suitable for 3D cover plates and guide films of different specifications. The short-side clamping assembly 400, through the coordinated design of the fixed base plate 410 and the clamping unit 420, achieves uniform clamping and flexible adjustment of the short-side position of the guide film.
[0021] Furthermore, in the auxiliary bonding fixture for 3D cover plates provided by this utility model, the clamping unit 420 includes an upper cover plate 4201 and a lower cover plate 4202. One end of the upper cover plate 4201 and one end of the lower cover plate 4202 are hinged together. The lower surface of the lower cover plate 4202 is slidably connected to the upper surface of the fixed base plate 410. The lower surface of the upper cover plate 4201 has a plurality of first mounting holes, and the upper surface of the lower cover plate 4202 has a plurality of second mounting holes. Magnets are respectively placed in the first mounting holes and the second mounting holes. The upper cover plate is the upper structure of the clamping unit and is used to cooperate with the lower cover plate 4202 to clamp the short side of the guide film. One end of the upper cover plate and one end of the lower cover plate 4202 are connected by a hinge, so that the upper cover plate can be opened and closed relative to the lower cover plate, which facilitates the placement and removal of the guide film. The lower cover plate is the lower structure of the clamping unit, used to support the upper cover plate and slidably connected to the fixed base plate 410. The lower surface of the lower cover plate is slidably connected to the upper surface of the fixed base plate 410, allowing the clamping unit to move along the fixed base plate to accommodate guide films of different sizes. Multiple mounting holes are provided on the lower surface of the upper cover plate and the upper surface of the lower cover plate for placing magnets. The attraction of the magnets tightly fixes the upper cover plate 4201 and the lower cover plate 4202, ensuring that the guide film is evenly clamped during the bonding process.
[0022] Furthermore, in the auxiliary bonding fixture for 3D cover plates provided by this utility model, the contact surface between the cover plate receiving component 100 and the 3D cover plate 600 is concave, allowing the 3D cover plate to better adapt to the shape of the fixture while ensuring stability and accuracy during the bonding process. A concave surface typically provides better load-bearing capacity, preventing the cover plate from sliding or moving unnecessarily on the fixture. Simultaneously, the shape of the concave surface may help to better fit the edges or shape of the 3D cover plate, ensuring the stability of the 3D cover plate's position throughout the bonding process.
[0023] Furthermore, in the auxiliary bonding fixture for 3D cover plates provided by this utility model, the silicone assembly 500 includes a silicone frame 510 and silicone 520. The silicone frame 510 is fixed in the silicone base 200, and the silicone 520 is placed in the silicone frame 510. The silicone frame 510 acts as a fixing frame, helping to hold the silicone 520 in the proper position. As an elastic material, silicone can effectively provide soft, adjustable pressure. Its elasticity allows the contact surface to adapt to changes in the shape and size of the 3D cover plate, ensuring that excessive pressure is not applied to the cover plate surface during bonding.
[0024] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.
[0025] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspect lies in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.
[0026] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.
[0027] It should be noted that the above embodiments are illustrative of the present invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.
Claims
1. An auxiliary bonding fixture for 3D cover plates, characterized in that, The device includes a cover plate receiving assembly (100), a silicone base (200), two long-side clamping assemblies (300), two short-side clamping assemblies (400), and a silicone assembly (500). The 3D cover plate (600) is placed in the cover plate receiving assembly (100), the silicone assembly (500) is housed in the silicone base (200), a guide film (700) is placed above the silicone assembly (500), the two long-side clamping assemblies (300) clamp the two long sides of the guide film (700) respectively, and the two short-side clamping assemblies (400) clamp the two short sides of the guide film (700) respectively.
2. The auxiliary bonding fixture for 3D cover plates as described in claim 1, characterized in that, The contact surface between the cover plate receiving assembly (100) and the 3D cover plate (600) is concave.
3. The auxiliary bonding fixture for 3D cover plates as described in claim 1, characterized in that, The short-side clamping assembly (400) includes a fixed base plate (410) and a clamping unit (420), wherein the clamping unit (420) is slidably connected to the fixed base plate (410).
4. The auxiliary bonding fixture for 3D cover plates as described in claim 3, characterized in that, The clamping unit (420) includes an upper cover plate (4201) and a lower cover plate (4202). One end of the upper cover plate (4201) and one end of the lower cover plate (4202) are hinged together. The lower surface of the lower cover plate (4202) is slidably connected to the upper surface of the fixed base plate (410).
5. The auxiliary bonding fixture for 3D cover plates as described in claim 4, characterized in that, The lower surface of the upper cover plate (4201) is provided with a plurality of first mounting holes, and the upper surface of the lower cover plate (4202) is provided with a plurality of second mounting holes. Magnets are placed in the first mounting holes and the second mounting holes respectively.
6. The auxiliary bonding fixture for 3D cover plates as described in claim 1, characterized in that, The silicone assembly (500) includes a silicone frame (510) and silicone (520), the silicone frame (510) being fixed in the silicone base (200), and the silicone (520) being placed in the silicone frame (510).