A laminated glass PVB film alignment and attaching device
By designing a PVB film alignment and bonding device for laminated glass, the bottom glass and the PVB film are precisely aligned using sliders and pull rods, solving the problem of inaccurate alignment in traditional processes and improving the light transmittance of the finished product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI ANBO ENERGY SAVING GLASS TECH CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-21
AI Technical Summary
The lack of a dedicated positioning structure in the manufacturing process of laminated glass in the current technology makes it difficult to accurately align the PVB film with the underlying glass, which is prone to displacement and wrinkling. Dust is easily introduced during manual adjustment, reducing the light transmittance of the finished product.
A device for aligning and attaching laminated glass PVB film was designed, including a base, a glass groove, a limiting frame, and a support plate assembly. Through the cooperation of sliders and pull rods, the device achieves precise positioning of the bottom glass and constraint of the PVB film, avoiding wrinkles and ensuring alignment of the upper and lower glass.
Precise alignment between the bottom glass and the PVB film was achieved, avoiding wrinkles and dust contamination of the film and improving the light transmittance of the finished product.
Smart Images

Figure CN224528034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of laminated glass PVB film alignment and bonding device, specifically a laminated glass PVB film alignment and bonding device. Background Technology
[0002] In the manufacturing process of laminated glass, a PVB (polyvinyl butyral) film needs to be precisely attached between the two layers of glass. The traditional process uses a vacuum bag hot pressing method: first, the bottom layer of glass is placed on a worktable, the PVB film is manually laid on it, and then the top layer of glass is covered. Then, a vacuum bag is used to remove air and heat and pressurize to achieve bonding.
[0003] Existing technologies rely on general-purpose workbenches or simple molds, without a dedicated positioning structure to guide the precise alignment of the PVB film with the underlying glass; the PVB film is prone to shifting and wrinkling when placed, and the manual adjustment process requires repeatedly lifting the film, which can easily introduce dust and impurities and reduce the light transmittance of the finished product. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a laminar glass PVB film alignment and attachment device, which solves the problems of lacking a dedicated positioning structure to guide the precise alignment of the PVB film with the underlying glass; the easy displacement and wrinkling of the PVB film during placement; the need to repeatedly lift the film during manual adjustment; the easy introduction of dust and impurities; and the reduction of the light transmittance of the finished product.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a laminated glass PVB film alignment and attachment device, comprising a base, a placement groove on the top surface of the base, a glass groove on the top surface of the placement groove, a bottom layer of glass on the surface of the glass groove, a PVB film covering the bottom layer of glass disposed within the placement groove, a limiting frame on the top surface of the base, sliding grooves on both sides of the inner wall of the limiting frame, L-shaped limiting grooves on both sides of the inner wall of the sliding groove, a support plate assembly slidably connected inside the sliding groove, and an upper layer of glass disposed on the surface of the support plate assembly;
[0006] The pallet assembly includes a slider that is slidably connected inside a groove. Both ends of the slider are fixedly connected to limit blocks, which are slidably connected inside an L-shaped limit groove. A pull rod is fixedly connected to the top surface of the slider.
[0007] In one specific embodiment, the slider of the pallet assembly achieves vertical lifting and horizontal movement through the sliding cooperation between the limiting block and the L-shaped limiting groove.
[0008] In one specific embodiment, the top of the slider is provided with a receiving groove for positioning the upper glass.
[0009] In one specific embodiment, the depth of the glass groove is equal to the thickness of the bottom glass and the shape of the sidewall is adapted to the contour of the bottom glass.
[0010] In a specific embodiment, the L-shaped limiting groove is composed of a vertical slide and a horizontal slide, wherein the horizontal slide extends perpendicular to the length direction of the groove.
[0011] In one specific embodiment, the top of the pull rod is provided with an anti-slip grip.
[0012] Compared with the prior art, the present invention provides a device for aligning and attaching laminated glass PVB films, which has the following advantages:
[0013] In the technical solution disclosed in this utility model, the bottom glass is precisely positioned by a glass groove to prevent displacement; the PVB film is constrained by a nested limiting frame to suppress wrinkling; the upper glass is supported by a slider receiving groove, and the limiting block is driven by a pull rod to move vertically downward along the L-shaped limiting groove to achieve precise glass landing; then the slider is moved laterally by the horizontal slide of the L-shaped limiting groove to complete contactless coverage; finally, the limiting frame integrates the three components for positioning to ensure complete alignment.
[0014] With the tray assembly and limiting frame designed in this utility model, the depth of the glass groove matches the thickness of the bottom glass and the contour is adapted, so that the bottom glass is fixed with zero offset after being embedded; the limiting frame and the placement groove nest together to form a closed boundary, constraining the edge of the PVB film covering the bottom glass and completely suppressing wrinkling displacement; after the receiving groove at the top of the slider carries the upper glass, the operator pulls the lever to drive the limiting block to move down along the vertical slide of the L-shaped limiting groove, so that the upper glass is vertically and accurately lowered directly above the PVB film; then the lever is pulled horizontally to drive the limiting block to move laterally along the horizontal slide of the L-shaped limiting groove, so that the slider is withdrawn from the bottom of the upper glass without contact, avoiding the instrument from touching the film throughout the process; finally, the limiting frame synchronously integrates the relative positions of the bottom glass, the PVB film and the upper glass, realizing integrated collaborative positioning and precise edge alignment. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the limiting frame structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the pallet assembly structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.
[0020] In the diagram: 1. Base; 2. Placement groove; 3. Glass groove; 4. Bottom glass; 5. PVB film; 6. Limiting frame; 7. Slide groove; 8. L-shaped limiting groove; 9. Support plate assembly; 91. Slider; 92. Limiting block; 93. Pull rod; 10. Top glass. Detailed Implementation
[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0022] Figures 1-4 In one embodiment of this utility model, a laminated glass PVB film alignment and attachment device includes a base 1, a placement groove 2 on the top surface of the base 1, a glass groove 3 on the top surface of the placement groove 2, a bottom glass 4 on the surface of the glass groove 3, a PVB film 5 covering the bottom glass 4 in the placement groove 2, a limiting frame 6 on the top surface of the base 1, sliding grooves 7 on both sides of the inner wall of the limiting frame 6, L-shaped limiting grooves 8 on both sides of the inner wall of the sliding groove 7, a support plate assembly 9 slidably connected inside the sliding groove 7, and an upper glass 10 on the surface of the support plate assembly 9.
[0023] The specific problems addressed in this embodiment are: the lack of a dedicated positioning structure to guide the precise alignment of the PVB film and the underlying glass; the tendency for the PVB film to shift and wrinkle during placement; the need for repeated lifting of the film during manual adjustment, which easily introduces dust and impurities and reduces the light transmittance of the finished product. This invention utilizes a glass groove 3 to precisely limit the positioning of the underlying glass 4 to prevent shifting; a nested limiting frame 6 to constrain the PVB film 5 and suppress wrinkling; a slider 91 receiving groove to support the upper glass 10; and a pull rod 93 driving the limiting block 92 to move vertically downwards along the L-shaped limiting groove 8 to achieve precise glass descent; then, the horizontal slide of the L-shaped limiting groove 8 drives the slider 91 to retract laterally to complete contactless coverage; finally, the limiting frame 6 integrates the three components for positioning to ensure complete alignment.
[0024] The pallet assembly 9 includes a slider 91 that is slidably connected inside the slide groove 7. Both ends of the slider 91 are fixedly connected to limit blocks 92. The limit blocks 92 are slidably connected inside the L-shaped limit groove 8. A pull rod 93 is fixedly connected to the top surface of the slider 91. In this specific embodiment, the L-shaped limit groove 8 is composed of a vertical slide and a horizontal slide. The horizontal slide extends perpendicularly to the length direction of the slide groove 7. The depth of the glass groove 3 matches the thickness and contour of the bottom glass 4, ensuring zero offset fixation after the bottom glass 4 is embedded. The limiting frame 6 and the placement groove 2 nest together to form a closed boundary, constraining the edge of the PVB film 5 covering the bottom glass 4 and completely suppressing wrinkling displacement. After the receiving groove at the top of the slider 91 carries the upper glass 10, the operator pulls the lever 93 to drive the limiting block 92 to move down along the vertical slide of the L-shaped limiting groove 8, so that the upper glass 10 is vertically and accurately lowered directly above the PVB film 5. Then, the lever 93 is pulled horizontally to drive the limiting block 92 to move laterally along the horizontal slide of the L-shaped limiting groove 8, so that the slider 91 is withdrawn from the bottom of the upper glass 10 without contact, avoiding contact between the instrument and the film throughout the process. Finally, the limiting frame 6 synchronizes and integrates the relative positions of the bottom glass 4, the PVB film 5 and the upper glass 10, achieving integrated collaborative positioning and precise edge alignment.
[0025] In this specific embodiment, the depth of the glass groove 3 is equal to the thickness of the bottom glass 4 and the shape of the sidewall is adapted to the contour of the bottom glass 4; the depth of the glass groove 3 is equal to the thickness of the bottom glass 4 and the contour of the sidewall is perfectly adapted to the edge shape of the bottom glass 4. During implementation, after the bottom glass 4 is embedded in the glass groove 3, its top surface is flush with the bottom wall of the placement groove 2, and the sidewall is tightly covered by the contour of the glass groove 3, realizing bidirectional displacement locking; this design directly eliminates the error of manual placement through physical matching, so that the bottom glass 4 maintains zero offset during the subsequent PVB film 5 covering and the upper glass 10 pressing process, thus eliminating the interlayer misalignment defect caused by the displacement of the bottom layer from the root.
[0026] In this specific embodiment, the top of the pull rod 93 is provided with an anti-slip grip. The anti-slip grip at the top of the pull rod 93 is made of knurled surface or covered with high friction coefficient rubber. During implementation, the operator pulls / presses down / drags the pull rod 93 horizontally by gripping the grip, and the increased friction prevents the hand from slipping. This design ensures that the operator can accurately control the vertical lifting and horizontal sliding trajectory of the slider 91 in the L-shaped limiting groove 8, and prevents the upper glass 10 from falling in a skewed trajectory or the slider 91 from losing control of its retraction speed due to force deviation, thus ensuring the stability of the glass covering process and the reliability of the non-contact protection of the diaphragm.
[0027] Working principle: First, the bottom glass 4 is embedded into the glass groove 3 of the base 1, with its depth equal to the glass thickness and the side wall contour matching to completely restrict the glass; then, the PVB film 5 is covered on the bottom glass 4 and the limiting frame 6 is installed in the placement groove 2, the inner wall of the limiting frame 6 forms a closed boundary to constrain the edge of the film; the operator holds the anti-slip grip of the pull rod 93 and lifts it, driving the slider 91 to rise to a high position through the limiting block 92 along the vertical slide of the L-shaped limiting groove 8, placing the upper glass 10 in the receiving groove at the top of the slider 91; pressing down the pull rod 93 drives the limiting block 92 to move down along the vertical slide, so that the upper glass 10 descends vertically to directly above the PVB film 5; then pulling the pull rod 93 horizontally outwards causes the limiting block 92 to move along the horizontal slide of the L-shaped limiting groove 8, driving the slider 91 to be withdrawn laterally from the bottom of the upper glass 10, with the glass covering the film without contact; finally, the limiting frame 6 is removed to complete the integrated alignment of the three components.
[0028] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.
[0029] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for aligning and attaching laminated glass PVB film, comprising a base (1), characterized in that: The top surface of the base (1) is provided with a placement groove (2), the top surface of the placement groove (2) is provided with a glass groove (3), the surface of the glass groove (3) is configured to place the bottom glass (4), the placement groove (2) is configured to cover the bottom glass (4) with a PVB film (5), the top surface of the base (1) is provided with a limiting frame (6), both sides of the inner wall of the limiting frame (6) are provided with sliding grooves (7), both sides of the inner wall of the sliding groove (7) are provided with L-shaped limiting grooves (8), the inside of the sliding groove (7) is slidably connected with a support plate assembly (9), the surface of the support plate assembly (9) is provided with an upper glass (10). The pallet assembly (9) includes a slider (91) slidably connected inside the slide groove (7). Both ends of the slider (91) are fixedly connected to limit blocks (92). The limit blocks (92) are slidably connected inside the L-shaped limit groove (8). A pull rod (93) is fixedly connected to the top surface of the slider (91).
2. The laminar glass PVB film alignment and bonding device according to claim 1, characterized in that: The slider (91) of the pallet assembly (9) achieves vertical lifting and horizontal movement through the sliding cooperation between the limiting block (92) and the L-shaped limiting groove (8).
3. The laminar glass PVB film alignment and bonding device according to claim 1, characterized in that: The top of the slider (91) is provided with a receiving groove for positioning the upper glass (10).
4. The laminar glass PVB film alignment and bonding device according to claim 1, characterized in that: The depth of the glass groove (3) is equal to the thickness of the bottom glass (4) and the sidewall shape is adapted to the outline of the bottom glass (4).
5. The laminar glass PVB film alignment and bonding device according to claim 1, characterized in that: The L-shaped limiting groove (8) is composed of a vertical slide and a horizontal slide, and the horizontal slide extends perpendicular to the length direction of the groove (7).
6. The laminar glass PVB film alignment and bonding device according to claim 1, characterized in that: The top of the pull rod (93) is provided with an anti-slip grip.