EVA adhesive film pasting device with deviation prevention structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ATPUNO INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-24
AI Technical Summary
Existing EVA film bonding devices are prone to deviations in width and thickness during transport, and the limiting structure has low adjustment flexibility, affecting transport stability and subsequent processes.
An EVA film pasting device with an anti-offset structure was designed, including an adjustment structure and a positioning post. Through the cooperation of the adjustment tube and the screw, the width and thickness of the film are effectively limited and buffered. The spring provides elastic buffering and enhances the positional stability of the film.
It significantly improves the positional stability of the adhesive film during the bonding process, prevents displacement, enhances the stability and adaptability of the conveying process, and extends the service life of key cushioning components.
Smart Images
Figure CN224547626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EVA film bonding devices, and in particular to an EVA film bonding device with an anti-offset structure. Background Technology
[0002] The EVA film bonding device is a specialized device for handling and positioning ethylene-vinyl acetate copolymer (EVA) films. It smoothly unfolds, conveys, and initially and accurately positions the roll of EVA film onto the target substrate, preparing it for subsequent heat lamination and permanent bonding processes.
[0003] Existing technologies, such as the utility model patent with publication number CN210233739U, disclose a fully automatic EVA film-making machine. This patent employs a first conveyor belt, a second conveyor belt, and a motor. A feeding mechanism is connected to the left side of the first conveyor belt, and a winding mechanism is located on the right side. A recycling mechanism is located at the rear of the second conveyor belt, and the recycling mechanism is connected to the feeding mechanism. The second conveyor belt is located on top of the first conveyor belt. A frame is fixedly connected to the outside of the first conveyor belt, and a film-pressing mechanism is located inside the frame. A scraper is fixedly connected to the right side of the top of the second conveyor belt, and the scraper is inclined, with an angle of 120 degrees between it and the second conveyor belt. The left side of the scraper contacts the film-pressing mechanism. This fully automatic EVA film-making machine solves the problem of material waste and product quality defects that often occur during film pressing in existing technologies.
[0004] The inventors discovered the following problems in their daily work when using the EVA film pasting device: the film is prone to lateral deviation in the width direction (commonly known as deviation) during the conveying process, and the film may also fluctuate vertically in the thickness direction during the conveying process. The limiting structure has low adjustment flexibility, which interferes with the stability of the conveying process and subsequent processes. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of a limiting structure, which makes them prone to displacement.
[0006] To solve the above technical problems, this utility model provides an EVA film pasting device with an anti-offset structure, comprising: a base, a worktable fixedly connected to the upper surface of the base, a pasting module mounted on the upper surface of the worktable, a control box fixedly connected to one side of the base, an adjustment structure provided on the lower surface of the worktable, the adjustment structure including a fixing plate, the fixing plate being fixedly connected to the worktable, an adjustment frame fixedly connected to the surface of the fixing plate, two support plates fixedly connected to the lower surface of the adjustment frame, a screw fixedly connected to the side of the two support plates close to each other, two adjusting tubes threadedly connected to the arc surface of the screw, and the outer surfaces of the two adjusting tubes... Each arc surface is rotatably connected to a connecting plate, which is slidably connected to the inner wall of the adjusting frame. A connecting frame is fixedly connected to the upper surface of the connecting plate, and a docking frame is slidably connected to the inner wall of the connecting frame. Both the connecting frame and the docking frame have mounting grooves on their inner walls. Mounting brackets are slidably connected to the inner walls of the two mounting grooves. A first spring is fixedly connected to the side of the two mounting brackets that are close to each other. A positioning frame is fixedly connected to the upper surface of the docking frame, and a positioning bracket is slidably connected to the inner wall of the positioning frame. Two rings are slidably connected to the inner wall of the positioning frame, and a second spring is fixedly connected to the side of the two rings that are close to each other. A positioning post is rotatably connected to the inner wall of the positioning bracket.
[0007] The effect achieved by the above components is to effectively limit and buffer the offset of the EVA film in the width direction (horizontal) and thickness direction (vertical), significantly improving the positional stability of the film during the pasting process and preventing offset.
[0008] Preferably, a scale is provided on the side of the adjustment frame away from the worktable.
[0009] The effect achieved by the above components is that the scale provides a precise visual reference, allowing users to accurately and quickly adjust the position and distance of the two positioning posts.
[0010] Preferably, the outer arc surface of the regulating tube is fixedly connected with a plurality of anti-slip protrusions, and the plurality of anti-slip protrusions are evenly distributed at both ends of the regulating tube.
[0011] The effect achieved by the above components is that the anti-slip protrusions increase the friction between the operator's fingers and the surface of the adjustment tube, making it easier for the user to rotate the adjustment tube.
[0012] Preferably, a slide rod is fixedly connected to the inner wall of the adjustment frame, and the arc surface of the slide rod is slidably connected to the connecting plate.
[0013] The effect achieved by the above components is that the slide bar provides guidance and support for the movement of the connecting plate, ensuring a smooth and stable adjustment process.
[0014] Preferably, the mounting bracket has several anti-slip grooves on the side away from the first spring.
[0015] The effect achieved by the above components is to increase the friction between the mounting bracket and the docking frame and connecting frame, thereby preventing the mounting bracket from shifting.
[0016] Preferably, the outer arc surface of the positioning post is provided with a reserved groove, and the reserved groove is an arc-shaped groove.
[0017] The effect achieved by the above components is as follows: the reserved groove provides a guiding and accommodating space for contact with the edge of the EVA film. When the film fluctuates up and down, its edge can slide along this arc-shaped groove, guiding the film smoothly through the positioning post, while reducing frictional resistance and damage to the edge of the film, and enhancing the adaptability and buffering effect of vertical fluctuations.
[0018] Preferably, the first spring is a first spring steel spring, and the second spring is a second spring steel spring.
[0019] The effects achieved by the above components are as follows: the use of spring steel ensures that the first and second springs have excellent elasticity, high fatigue strength and durability, can withstand frequent compression and reset, maintain stable buffering performance in long-term use, and extend the service life of key buffering components.
[0020] Compared with related technologies, the EVA film pasting device with an anti-displacement structure provided by this utility model has the following beneficial effects:
[0021] This invention provides an EVA film pasting device with an anti-offset structure. By setting an adjustment structure, the position and spacing of the positioning posts can be adjusted by rotating the adjustment tube to adapt to the width of the film. The second spring and the first spring of the positioning posts can provide horizontal elastic buffering and vertical sliding buffering, effectively limiting and buffering the offset of the EVA film in the width direction (horizontal) and thickness direction (vertical), which significantly improves the positional stability of the film during pasting and prevents the film from shifting. The mounting bracket and ring design facilitate the replacement of the first spring and the second spring, improving the efficiency of disassembly and assembly and the work efficiency of maintenance. Attached Figure Description
[0022] Figure 1 A schematic diagram of an EVA film pasting device with an anti-offset structure provided by this utility model;
[0023] Figure 2 for Figure 1 The diagram shows the structural schematic of the adjustment structure.
[0024] Figure 3 for Figure 2 A partial structural schematic diagram of the adjustment structure shown;
[0025] Figure 4 for Figure 2A partial structural diagram of the adjustment structure is shown.
[0026] The following are the labeling elements in the diagram: 1. Base; 2. Workbench; 3. Adhesive module; 4. Control box; 5. Adjustment structure; 501. Fixing plate; 502. Adjustment frame; 503. Support plate; 504. Screw; 505. Adjustment tube; 506. Connecting plate; 507. Slide rod; 508. Scale; 509. Connecting frame; 510. Docking frame; 511. Mounting slot; 512. Mounting bracket; 513. First spring; 514. Positioning frame; 515. Positioning bracket; 516. Ring; 517. Second spring; 518. Positioning post; 519. Reserved slot. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0029] Please see Figures 1 to 4 The present invention provides an EVA film pasting device with an anti-offset structure, comprising: a base 1, a workbench 2 fixedly connected to the upper surface of the base 1, an pasting module 3 installed on the upper surface of the workbench 2, a control box 4 fixedly connected to one side of the base 1, and an adjustment structure 5 provided on the lower surface of the workbench 2.
[0030] In the embodiments of this utility model, please refer to Figures 1 to 4The adjustment structure 5 includes a fixed plate 501, which is fixedly connected to the worktable 2. An adjustment frame 502 is fixedly connected to the surface of the fixed plate 501. Two support plates 503 are fixedly connected to the lower surface of the adjustment frame 502. A screw 504 is fixedly connected to one side of the two support plates 503 that are close to each other. Two adjustment tubes 505 are threadedly connected to the arc surface of the screw 504. A connecting plate 506 is rotatably connected to the outer arc surface of each of the two adjustment tubes 505. The connecting plate 506 is slidably connected to the inner wall of the adjustment frame 502. A connecting frame 509 is fixedly connected to the upper surface of the connecting plate 506. A mating frame 510 is slidably connected to the inner wall of the connecting frame 509. Both the inner walls of the connecting frame 509 and the mating frame 510 are provided with mounting grooves 511. Mounting brackets 512 are slidably connected to the inner walls of the 511. A first spring 513 is fixedly connected to the side of the two mounting brackets 512 that are close to each other. A positioning frame 514 is fixedly connected to the upper surface of the docking frame 510. A positioning bracket 515 is slidably connected to the inner wall of the positioning frame 514. Two rings 516 are slidably connected to the inner wall of the positioning frame 514. A second spring 517 is fixedly connected to the side of the two rings 516 that are close to each other. A positioning post 518 is rotatably connected to the inner wall of the positioning bracket 515. This effectively limits and buffers the horizontal displacement of the EVA film in the width direction and the vertical displacement in the thickness direction, significantly improving the positional stability of the film during the pasting process and preventing displacement. A scale 508 is provided on the side of the adjusting frame 502 away from the worktable 2. The scale 508 provides... Precise visual reference allows users to accurately and quickly adjust the position and spacing of the two positioning posts 518. Several anti-slip protrusions are fixedly connected to the outer arc surface of the adjusting tube 505, evenly distributed at both ends. These protrusions increase the friction between the operator's fingers and the surface of the adjusting tube 505, facilitating rotation. A sliding rod 507 is fixedly connected to the inner wall of the adjusting frame 502. The arc surface of the sliding rod 507 slidably connects to the connecting plate 506, providing guidance and support for the movement of the connecting plate 506, ensuring a smooth and stable adjustment process. Several anti-slip grooves are provided on the side of the mounting bracket 512 away from the first spring 513, increasing the friction between the mounting bracket 512 and the docking frame 510 and connecting frame 509. To reduce friction and prevent the mounting bracket 512 from shifting, the outer arc surface of the positioning post 518 is provided with a reserved groove 519. The reserved groove 519 is an arc-shaped groove, providing guidance and accommodating space for contact with the edge of the EVA film. When the film fluctuates up and down, its edge can slide along this arc-shaped groove, guiding the film smoothly through the positioning post 518, while reducing frictional resistance and damage to the edge of the film, enhancing the adaptability and buffering effect of vertical fluctuations. The first spring 513 is specifically a steel spring, and the second spring 517 is specifically a steel spring. The use of spring steel ensures that the first spring 513 and the second spring 517 have excellent elasticity, high fatigue strength and durability, and can withstand frequent compression and reset.Maintain stable buffering performance during long-term use and extend the service life of key buffering components;
[0031] The working principle of the EVA film pasting device with anti-offset structure provided by this utility model is as follows: By setting the adjustment structure 5, the adjustment tube 505 is first rotated. The adjustment tube 505 moves along the arc surface of the screw 504 by means of the thread. During this process, the adjustment tube 505 drives the connecting plate 506 to move along the inner wall of the adjustment frame 502. The connecting plate 506 then drives the connecting frame 509, the docking frame 510, the positioning frame 514, the positioning bracket 515, and the positioning post 518 to move. According to the position of the EVA film, the positions of the two adjustment tubes 505 are adjusted, so that the two positioning posts 518 are located on both sides of the EVA film. When the EVA film collides with the positioning post 518 along the width direction of the film during the movement, the positioning post 518 is fixed. Positioning post 518 moves towards positioning frame 514 together with positioning bracket 515 under force. The second spring 517 between the two rings 516 provides an elastic force in the opposite direction to positioning bracket 515, providing elastic cushioning for positioning post 518. When the EVA film moves vertically, the film is fitted with positioning post 518 through the inner wall of the reserved groove 519, causing positioning post 518, positioning bracket 515, and positioning frame 514 to move downwards or downwards as a whole. Positioning frame 514 drives docking frame 510 to move. During this process, docking frame 510 slides along the inner wall of connecting frame 509. The spring between the two mounting brackets 512 provides an elastic force in the opposite direction to docking frame 510, providing fluctuation cushioning for positioning post 518. When the first spring 513 needs to be replaced, the two mounting brackets 512 are moved away from the connecting frame 509 and the mating frame 510. The mounting brackets 512 move the first spring 513 away from the mounting groove 511. When the second spring 517 needs to be replaced, the ring 516 is oscillated from the notch of the positioning frame 514. The operating ring 516 and the second spring 517 are moved away from the positioning frame 514. The scale 508 provides a precise visual reference, allowing the user to accurately and quickly adjust the position and spacing of the two positioning posts 518. The anti-slip protrusions increase the friction between the operator's fingers and the surface of the adjusting tube 505, making it easier for the user to rotate the adjusting tube 505. The slide bar 507 provides guidance and support for the movement of the connecting plate 506, ensuring... The adjustment process is smooth and stable, increasing the friction between the mounting bracket 512 and the docking frame 510 and connecting frame 509, preventing the mounting bracket 512 from shifting. The reserved groove 519 provides guidance and accommodation space for contact with the edge of the EVA film. When the film fluctuates up and down, its edge can slide along this arc-shaped groove, guiding the film smoothly through the positioning post 518, while reducing frictional resistance and damage to the edge of the film, enhancing the adaptability and buffering effect of vertical fluctuations. Spring steel is selected to ensure that the first spring 513 and the second spring 517 have excellent elasticity, high fatigue strength and durability, and can withstand frequent compression and reset, maintaining stable buffering performance in long-term use and extending the service life of key buffering components.
[0032] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An EVA film pasting device with an anti-offset structure, characterized in that, include: A base (1) is provided, and a workbench (2) is fixedly connected to the upper surface of the base (1). A pasting module (3) is installed on the upper surface of the workbench (2). A control box (4) is fixedly connected to one side of the base (1). An adjustment structure (5) is provided on the lower surface of the workbench (2). The adjustment structure (5) includes a fixing plate (501). The fixing plate (501) is fixedly connected to the workbench (2). An adjustment frame (502) is fixedly connected to the surface of the fixing plate (501). Two support plates (503) are fixedly connected to the lower surface of the adjustment frame (502). A screw (504) is fixedly connected to the side of the two support plates (503) that are close to each other. Two adjustment tubes (505) are threadedly connected to the arc surface of the screw (504). A connecting plate (506) is rotatably connected to the outer arc surface of the two adjustment tubes (505). The connecting plate (506) is connected to the adjustment frame (502). The inner wall of the connecting plate (506) is slidably connected to the connecting frame (509), the upper surface of the connecting plate (506) is fixedly connected to the connecting frame (509), the inner wall of the connecting frame (509) is slidably connected to the docking frame (510), the inner walls of the connecting frame (509) and the docking frame (510) are both provided with mounting grooves (511), the inner walls of the two mounting grooves (511) are slidably connected to mounting brackets (512), the two mounting brackets (512) are fixedly connected to the side of each other with a first spring (513), the upper surface of the docking frame (510) is fixedly connected to the positioning frame (514), the inner wall of the positioning frame (514) is slidably connected to the positioning bracket (515), the inner wall of the positioning frame (514) is slidably connected to two rings (516), the side of each ring (516) is fixedly connected to the side of each other with a second spring (517), and the inner wall of the positioning bracket (515) is rotatably connected to a positioning column (518).
2. The EVA film pasting device with an anti-displacement structure according to claim 1, characterized in that, A scale (508) is provided on the side of the adjustment frame (502) away from the workbench (2).
3. The EVA film pasting device with an anti-displacement structure according to claim 1, characterized in that, The outer arc surface of the regulating tube (505) is fixedly connected with several anti-slip protrusions, which are evenly distributed at both ends of the regulating tube (505).
4. The EVA film pasting device with an anti-displacement structure according to claim 1, characterized in that, The inner wall of the adjustment frame (502) is fixedly connected to a slide rod (507), and the arc surface of the slide rod (507) is slidably connected to the connecting plate (506).
5. The EVA film pasting device with an anti-displacement structure according to claim 1, characterized in that, The mounting bracket (512) has several anti-slip grooves on the side away from the first spring (513).
6. The EVA film pasting device with an anti-offset structure according to claim 1, characterized in that, The outer arc surface of the positioning post (518) is provided with a reserved groove (519), and the reserved groove (519) is an arc-shaped groove.
7. The EVA film pasting device with an anti-offset structure according to claim 1, characterized in that, The first spring (513) is specifically a first spring (513) steel spring, and the second spring (517) is specifically a second spring (517) steel spring.