Punching jig for covering PE film on vehicle-mounted glass

Abstract

The utility model provides a vehicle-mounted glass PE film covering punching jig which comprises a punching table, a supporting frame is connected to the upper surface of the punching table, a cutting die mechanism is connected to the top end of a frame body of the supporting frame, and a fixing mechanism is arranged at the bottom end of the cutting die mechanism. The fixing mechanism comprises a profiling groove formed in the top end of the punching table and an adsorption hole formed in a groove body of the profiling groove. Clamping assemblies are arranged on the two sides of the profiling groove and connected to the upper surface of the punching table. The shape of the profiling groove is matched with that of the vehicle-mounted cover plate, double positioning of the adsorption hole and the clamping assembly is combined, vehicle-mounted glass and a PE film can be accurately placed, and the situation that a product is placed in a deviated mode is reduced.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of automotive glass processing, specifically to a punching fixture for automotive glass coated with PE film. Background Technology

[0002] With the development of the automotive industry, modern car designs pursue streamlined appearances, leading to increased complexity in glass curvature. Traditional manual cutting, relying on manual operation, is inefficient, inconsistent, and prone to dimensional deviations and material waste. Furthermore, PE film has high extensibility, is easily deformed, and has burr-prone edges. Therefore, specialized fixtures are required to ensure no stretching or tearing during cutting. This improves efficiency while maintaining product consistency.

[0003] Existing vehicle cover film coatings are mostly roller-type, which do not trim excess film around the vehicle cover. Furthermore, during the coating process, the product is prone to shifting, and the coating may wrinkle. They also lack adaptability for coating curved or irregularly shaped covers. Utility Model Content

[0004] This utility model mainly provides a vehicle-mounted glass PE film-coated punching fixture to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A punching fixture for PE film coating on vehicle glass includes a punching table, a support frame connected to the upper surface of the punching table, a die-cutting mechanism connected to the top of the support frame, and a fixing mechanism provided at the bottom of the die-cutting mechanism.

[0007] The fixing mechanism includes a contour groove provided on the top of the punching table and an adsorption hole provided in the groove of the contour groove.

[0008] Clamping components are provided on both sides of the contoured groove, and the clamping components are connected to the upper surface of the punching table.

[0009] Furthermore, the support frame includes columns connected to multiple apex corners of the upper surface of the punching table, and support plates connected to the upper surfaces of the multiple columns.

[0010] Furthermore, the die-cutting mechanism includes a cylinder connected to the upper surface of the support plate and a pressure plate die connected to the actuating end of the cylinder.

[0011] Furthermore, the punching table is internally connected to a plurality of first vacuum tubes, one side of which is connected to a second vacuum tube, and one end of which is connected to a vacuum pump.

[0012] Furthermore, the upper surface of the first vacuum tube is connected to multiple vacuum adsorption heads, which are connected to adsorption holes.

[0013] Furthermore, the clamping assembly includes an electric push rod connected to the upper surface of the punching table, and a clamping plate connected to the actuating end of the electric push rod.

[0014] Furthermore, the clamping plate has a hollow structure, and a plurality of vacuum holes are provided on one side of the clamping plate. A negative pressure tube is connected to the inner cavity of the clamping plate. The negative pressure tube is slidably connected to the top of the punching table and connected to the second vacuum tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] Firstly, the contoured groove of this invention matches the shape of the vehicle cover plate, and combined with the dual positioning of the adsorption hole and clamping assembly, it can accurately place the vehicle glass and PE film, reducing product placement deviation. The precise control and rapid punching of the die-cutting mechanism greatly improve the efficiency of lamination and punching.

[0017] Secondly, the pressure plate die of this invention can precisely cut off excess PE film around the vehicle glass, ensuring a flush edge finish. The vacuum adsorption function of the clamping plate and the stable fixation of the PE film by the entire fixture effectively avoid wrinkles in the film, thereby improving the yield of flush edge film application.

[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view of the structure of area A in the middle;

[0022] Figure 4 This is a cross-sectional view of the first and second vacuum tubes of this utility model.

[0023] In the diagram: 1. Punching table; 11. First vacuum tube; 12. Second vacuum tube; 13. Vacuum pump; 14. Vacuum suction head; 2. Support frame; 21. Column; 22. Support plate; 3. Die-cutting mechanism; 31. Cylinder; 32. Pressure plate die-cutting; 4. Fixing mechanism; 41. Contouring groove; 42. Suction hole; 43. Clamping assembly; 431. Electric push rod; 432. Clamping plate; 433. Vacuum hole; 434. Negative pressure tube. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0025] 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 intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] 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 in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] This application provides a punching fixture for PE film coating on automotive glass, as shown in the schematic diagram below. Figure 1-4 As shown. The vehicle-mounted glass PE film punching fixture includes a punching table 1, a support frame 2 connected to the upper surface of the punching table 1, a die-cutting mechanism 3 connected to the top of the support frame 2, and a fixing mechanism 4 provided at the bottom of the die-cutting mechanism 3;

[0028] The fixing mechanism 4 includes a contour groove 41 located at the top of the punching table 1 and an adsorption hole 42 located in the groove of the contour groove 41.

[0029] Clamping components 43 are provided on both sides of the contour groove 41, and the clamping components 43 are connected to the upper surface of the punching table 1.

[0030] It should be noted that in this embodiment, the punching table 1 serves as the basic support component of the entire fixture, providing a stable operating platform. The support frame 2 is connected to the upper surface of the punching table 1, providing support for the die-cutting mechanism 3 and enabling it to be stably positioned above the punching table 1. The die-cutting mechanism 3 is used to punch the PE film coating on the vehicle glass, and its bottom fixing mechanism 4 plays a fixing role. The contoured groove 41 is adapted to the shape of the vehicle glass, allowing the vehicle glass to be placed in it for initial positioning; the suction hole 42 generates negative pressure by connecting to an external vacuum device, tightly adsorbing the PE film within the contoured groove 41 to prevent it from moving during the punching process. The clamping assembly 43 is located on both sides of the contoured groove 41, further clamping and fixing the vehicle glass to enhance the fixing effect.

[0031] Optionally, such as Figure 1 and Figure 2 As shown, the support frame 2 includes columns 21 connected to multiple corners of the upper surface of the punching table 1, and support plates 22 connected to the upper surfaces of the multiple columns 21.

[0032] In this embodiment, the columns 21 are connected to multiple apex corners on the upper surface of the punching table 1, providing support points for the support plate 22. The support plate 22 is connected to the upper surfaces of the multiple columns 21 to form a stable planar structure. This structure enables the support frame 2 to withstand the weight of the die-cutting mechanism 3 and the pressure generated during the punching process, and to evenly transfer it to the punching table 1.

[0033] Optionally, such as Figure 3 and Figure 4 As shown, the die-cutting mechanism 3 includes a cylinder 31 connected to the upper surface of the support plate 22, and a pressure plate die 32 connected to the actuating end of the cylinder 31.

[0034] In this embodiment, cylinder 31 is connected to the upper surface of support plate 22, and its actuating end is connected to pressure plate die 32. When cylinder 31 is started, it generates power through compressed air, pushing the actuating end to move linearly, thereby driving pressure plate die 32 to move up and down. When pressure plate die 32 moves downward, it performs a punching operation on the PE film covering the vehicle glass placed on the punching table 1.

[0035] Optionally, such as Figure 3 and Figure 4 As shown, the punching table 1 has multiple first vacuum tubes 11 connected inside. One side of each first vacuum tube 11 is connected to a second vacuum tube 12, and one end of the second vacuum tube 12 is connected to a vacuum pump 13.

[0036] In this embodiment, when the vacuum pump 13 operates, it generates negative pressure suction. This suction is transmitted to multiple first vacuum tubes 11 through the second vacuum tube 12. Since the first vacuum tubes 11 are connected to the inside of the punching table 1, a negative pressure environment is formed inside the entire punching table 1. The vacuum adsorption system composed of the vacuum pump 13, the second vacuum tube 12, and the first vacuum tubes 11 can provide a stable negative pressure to the adsorption holes 42. This allows the adsorption holes 42 to firmly adsorb the PE film, preventing it from shifting or wrinkling during the punching process, ensuring the accuracy of punching and the flatness of the PE film, and improving product quality.

[0037] Optionally, such as Figure 3 and Figure 4 As shown, a plurality of vacuum adsorption heads 14 are connected to the upper surface of the first vacuum tube 11, and the vacuum adsorption heads 14 are connected to the adsorption holes 42.

[0038] In this embodiment, the negative pressure inside the first vacuum tube 11 is transmitted to the adsorption holes 42 through the vacuum adsorption head 14. Since the vacuum adsorption head 14 is connected to the adsorption holes 42, the adsorption holes 42 can generate adsorption force, adsorbing the PE film into the contoured groove 41. The arrangement of the vacuum adsorption head 14 ensures an effective connection between the first vacuum tube 11 and the adsorption holes 42, allowing the negative pressure to be evenly transmitted to each adsorption hole 42. This enhances the adsorption effect of the adsorption holes 42 on the PE film, further improving the stability of the PE film during the punching process, reducing punching errors, and improving product consistency and quality.

[0039] Optionally, such as Figure 3 and Figure 4 As shown, the clamping assembly 43 includes an electric push rod 431 connected to the upper surface of the punching table 1, and a clamping plate 432 connected to the actuating end of the electric push rod 431.

[0040] In this embodiment, the electric push rod 431 is connected to the upper surface of the punching table 1, and its actuating end is connected to the clamping plate 432. When the electric push rod 431 is activated, it converts electrical energy into mechanical energy, pushing the actuating end to move linearly, thereby causing the clamping plate 432 to move toward or away from the vehicle glass. When the clamping plate 432 moves to the appropriate position, it clamps and fixes the vehicle glass.

[0041] Optionally, such as Figure 3 and Figure 4 As shown, the clamping plate 432 has a hollow structure. Multiple vacuum holes 433 are provided on one side of the clamping plate 432. A negative pressure pipe 434 is connected to the inner cavity of the clamping plate 432. The negative pressure pipe 434 is slidably connected to the top of the punching table 1 and connected to the second vacuum pipe 12.

[0042] In this embodiment, the negative pressure of the second vacuum tube 12 is transmitted to the inner cavity of the clamping plate 432 through the negative pressure tube 434. Since the clamping plate 432 has a hollow structure and multiple vacuum holes 433 are provided on one side of the plate, the negative pressure in the inner cavity causes the vacuum holes 433 to generate an adsorption force, adsorbing the PE film on the edge of the vehicle glass. Simultaneously, the negative pressure tube 434 is slidably connected to the top of the punching table 1, ensuring the normal transmission of negative pressure when the electric push rod 431 moves the clamping plate 432.

[0043] The specific operation method of this utility model is as follows:

[0044] The PE film is laid in the contour groove 41 of the punching table 1, and the vacuum adsorption system is started. The PE film is tightly adsorbed into the groove through the adsorption hole 42 to keep it flat.

[0045] The vehicle glass is placed on top of the PE film and initially positioned using the contoured groove 41. The electric push rod 431 is activated, causing the clamping plate 432 to move towards the vehicle glass and clamp it in place. At the same time, the vacuum holes 433 on the clamping plate 432 adsorb the PE film at the edges of the glass, preventing wrinkles in the film.

[0046] The cylinder 31 is activated, which pushes the pressure plate die 32 downward to punch the PE film on the vehicle glass. During the punching process, the punching pressure, speed and other parameters are precisely controlled according to preset parameters to ensure consistent punching depth and punching accuracy of ±0.1mm.

[0047] After punching is completed, cylinder 31 drives the pressure plate die 32 to rise and reset. The vacuum adsorption system is turned off, the clamping plate 432 is released, and the punched automotive glass product is removed manually or mechanically.

[0048] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A punching fixture for PE film coating on vehicle-mounted glass, comprising a punching table (1), characterized in that, The upper surface of the punching table (1) is connected to a support frame (2), the top of the support frame (2) is connected to a die-cutting mechanism (3), and the bottom of the die-cutting mechanism (3) is provided with a fixing mechanism (4). The fixing mechanism (4) includes a contour groove (41) provided at the top of the punching table (1) and an adsorption hole (42) provided in the groove of the contour groove (41). The contoured groove (41) is provided with clamping components (43) on both sides, and the clamping components (43) are connected to the upper surface of the punching table (1).

2. The vehicle-mounted glass PE film-coated punching fixture according to claim 1, characterized in that, The support frame (2) includes columns (21) connected to multiple apex corners of the upper surface of the punching table (1) and support plates (22) connected to the upper surfaces of the multiple columns (21).

3. The vehicle-mounted glass PE film-coated punching fixture according to claim 1, characterized in that, The die-cutting mechanism (3) includes a cylinder (31) connected to the upper surface of the support plate (22) and a pressure plate die (32) connected to the actuating end of the cylinder (31).

4. The vehicle-mounted glass PE film-coated punching fixture according to claim 1, characterized in that, The punching table (1) is internally connected to a plurality of first vacuum tubes (11), one side of the plurality of first vacuum tubes (11) is connected to a second vacuum tube (12), and one end of the second vacuum tube (12) is connected to a vacuum pump (13).

5. The vehicle-mounted glass PE film-coated punching fixture according to claim 4, characterized in that, The upper surface of the first vacuum tube (11) is connected to a plurality of vacuum adsorption heads (14), and the vacuum adsorption heads (14) are connected to adsorption holes (42).

6. The vehicle-mounted glass PE film-coated punching fixture according to claim 1, characterized in that, The clamping assembly (43) includes an electric push rod (431) connected to the upper surface of the punching table (1) and a clamping plate (432) connected to the actuating end of the electric push rod (431).

7. The vehicle-mounted glass PE film-coated punching fixture according to claim 6, characterized in that, The clamping plate (432) has a hollow structure. A plurality of vacuum holes (433) are provided on one side of the clamping plate (432). A negative pressure tube (434) is connected to the inner cavity of the clamping plate (432). The negative pressure tube (434) is slidably connected to the top of the punching table (1) and connected to the second vacuum tube (12).

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