A kind of overlock device for multilayer high elasticity fabric
By combining electrothermal cutting wire and hot melt adhesive, the problems of interlayer tearing and delamination in the cutting and edging process of multi-layer high-elasticity fabrics are solved, thereby improving cutting stability and edging quality and adapting to high temperature and high humidity environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SENZHI AUTOMOBILE INTERIOR (JIAXING) CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional cutting methods can easily lead to tearing or delamination between layers of highly elastic fabrics, and the edges after cutting are uneven, affecting the appearance and performance, especially increasing the risk in high temperature and high humidity environments.
The edges are trimmed using an electric heating wire, combined with side pressure rollers and clamping rollers, and then wrapped with hot melt adhesive. The clamping rollers, which are set in a conical and skewed manner, arrange the pressure points of the adhesive strip from the outside to the inside in sequence, reducing the risk of air bubbles.
It improves cutting stability, reduces the possibility of interlayer tearing and delamination, enhances the quality and stability of edge binding, and is suitable for high temperature and high humidity environments.
Smart Images

Figure CN224391371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fabric processing technology, and in particular to a binding device for multi-layer high-elasticity fabrics. Background Technology
[0002] As the automotive industry demands higher levels of comfort and functionality in interior design, multi-layered, highly elastic composite fabrics are increasingly used in automotive seats, door panel linings, headliners, and other components. These fabrics are typically composed of an elastic substrate such as polyurethane foam and spandex fiber layers, a functional layer of sound insulation cotton and heat insulation film, and a decorative surface layer, combining cushioning, shock absorption, noise reduction, heat insulation, and aesthetic appeal.
[0003] The interlayer bonding strength of composite fabrics depends on adhesives or sewing processes. Traditional cutting methods, such as mechanical blade cutting, are prone to interlayer tearing or delamination due to stress concentration. Especially in the high temperature and high humidity automotive environment, the risk of delamination increases significantly. At the same time, after cutting, the edges of multi-layer elastic materials are prone to elastic shrinkage due to the stress between the layers, resulting in uneven edges that affect appearance and performance. Therefore, an edge-wrapping device is needed for multi-layer high-elasticity fabric composite equipment. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an edge binding device for multi-layer high-elasticity fabrics, thereby solving the above-mentioned problem.
[0005] To achieve the above objectives, a binding device for multi-layer high-elasticity fabrics is provided, comprising a connecting seat, an electric slide rotatably connected above the connecting seat, a drive motor fixedly connected to the upper end of the connecting seat away from the electric slide, a drive screw fixedly connected to the output shaft of the drive motor near the electric slide, a cutting seat fixedly connected to one side of the upper part of the electric slide, an electrothermal cutting wire provided on the inner side of the cutting seat away from the drive motor, and a cutting guide roller rotatably connected to the inner side of the cutting seat near the drive motor.
[0006] An edge-binding frame is fixedly connected to the upper side of the electric slide away from the cutting seat. A side pressure frame is slidably connected to the inner side of the edge-binding frame. Side pressure rollers are rotatably connected to both sides of the side pressure frame away from the drive motor. A side pressure spring is fixedly connected to the middle of the side pressure frame near the drive motor. A baking device is fixedly connected to the upper side of the electric slide near the drive motor at the position between the cutting seat and the side pressure frame. Edge-clamping cylinders are fixedly connected to both the upper and lower sides of the edge-binding frame away from the drive motor. The output ends of the two edge-clamping cylinders pass through the edge-binding frame and are fixedly connected to the edge-clamping frame. Edge-clamping rollers are rotatably connected to the inner side of the two edge-clamping frames.
[0007] According to the edging device for multi-layer high-elasticity fabrics, the end of the drive screw away from the drive motor passes through the electric slide and is threadedly engaged with the electric slide.
[0008] According to the edging device for multi-layer high-elasticity fabrics, the frame of the side pressure frame has guide slopes at both ends of the side pressure roller.
[0009] According to the edge-binding device for multi-layer high-elasticity fabrics, both edge-clamping rollers are tapered rollers, and the larger end of the tapered rollers is clockwise biased toward the cutting seat side.
[0010] According to the described edge-binding device for multi-layer high-elasticity fabrics, the two edge-clamping frames and edge-clamping rollers are symmetrically arranged with respect to the centerline of the edge-binding frames.
[0011] According to the edging device for multi-layer high-elasticity fabric, the baking device is provided with an edging feed roller on the side near the side pressure frame, and the baking surface of the baking device is located on the side of the edging feed roller.
[0012] According to the edging device for multi-layer high-elasticity fabric, the end of the side pressure spring away from the side pressure frame is connected to the inner side of the edging frame.
[0013] The above solution has at least one of the following beneficial effects:
[0014] 1. This utility model is equipped with a cutting seat and an electric heating cutting wire, which can cut the edge of the fabric by the heat effect of the electric heating wire before binding, ensuring the stability of the cut, avoiding the tearing problem that may be caused by the mechanical cutter, improving the cutting stability, reducing the impact of interlayer tearing or delamination on the work process during subsequent binding, and enhancing the practicality of the device.
[0015] 2. This utility model is equipped with two side pressure rollers and clamping rollers. When used with a baking device, it can use a single-sided hot melt adhesive strip to clamp and press the edges of the fabric on both sides. The clamping rollers are set with a conical and oblique shape, so that the force points of the adhesive strip are arranged sequentially from the outside to the inside along the direction of travel, reducing the possibility of hollowness inside the edge and enhancing the practicality of the device.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0018] Figure 1 This is a left-side perspective structural diagram of a binding device for multi-layer high-elasticity fabrics according to the present invention.
[0019] Figure 2 This is a three-dimensional structural diagram of the right side of a binding device for multi-layer high-elasticity fabrics according to the present invention.
[0020] Figure 3 This is a front structural diagram of a binding device for multi-layer high-elasticity fabrics according to the present invention.
[0021] Figure 4 This is a side view of the edge-binding device for multi-layer high-elasticity fabrics according to the present invention.
[0022] Legend:
[0023] 1. Connecting seat; 2. Electric slide; 3. Cutting seat; 4. Electrothermal cutting wire; 5. Edge cutting guide roller; 6. Drive motor; 7. Drive screw; 8. Baking unit; 9. Edge wrapping frame; 10. Side pressure frame; 11. Side pressure roller; 12. Side pressure spring; 13. Edge clamping roller; 14. Edge clamping frame; 15. Edge clamping cylinder. Detailed Implementation
[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0025] Reference Figure 1-4 This utility model provides a binding device for multi-layer high-elasticity fabrics, including a connecting seat 1, an electric slide 2 rotatably connected to the top of the connecting seat 1, a drive motor 6 fixedly connected to the top of the connecting seat 1 away from the electric slide 2, a drive screw 7 fixedly connected to the output shaft of the drive motor 6 near the electric slide 2, and the end of the drive screw 7 away from the drive motor 6 passing through the electric slide 2 and threadedly engaged with the electric slide 2, so that the cutting depth can be adjusted by moving the electric slide 2;
[0026] A cutting seat 3 is fixedly connected to one side of the upper part of the electric slide 2. An electric heating cutting wire 4 is provided on the inner side of the cutting seat 3 away from the drive motor 6. An edge-cutting guide roller 5 is rotatably connected to the inner side of the cutting seat 3 near the drive motor 6. The edge of the fabric can be cut by the heat effect of the electric heating wire before edge binding, ensuring the stability of the cut, avoiding the tearing problem that may occur when the mechanical cutter is cutting, improving the cutting stability, and reducing the impact on the work process caused by interlayer tearing or delamination during subsequent edge binding.
[0027] An edge-binding frame 9 is fixedly connected to the upper side of the electric slide block 2 away from the cutting seat 3. A side pressure frame 10 is slidably connected to the inner side of the edge-binding frame 9. Side pressure rollers 11 are rotatably connected to both sides of the side pressure frame 10 away from the drive motor 6. The frame of the side pressure frame 10 has guide slopes at both ends of the side pressure rollers 11 to bend the two sides of the edge-binding strip. A side pressure spring 12 is fixedly connected to the middle of the side pressure frame 10 near the drive motor 6. The end of the side pressure spring 12 away from the side pressure frame 10 is connected to the edge-binding strip. The inner side of the frame 9 is connected, and the elastic force of the side pressure spring 12 can be used to make the side pressure roller 11 exert pressure on the edge of the fabric to clamp and press the side of the fabric, which facilitates the side of the adhesive strip to be attached. The electric slide 2 is fixedly connected to the end near the drive motor 6 at the position between the cutting seat 3 and the side pressure frame 10. The side of the baking device 8 near the side pressure frame 10 is provided with the edge-binding feeding roller, and the baking surface of the baking device 8 is located on the side of the edge-binding feeding roller, so that edge-binding adhesive strips with hot melt adhesive on one side can be used.
[0028] The edge-binding frame 9 is fixedly connected to the upper and lower sides of the end away from the drive motor 6. The output ends of the two edge-binding cylinders 15 are fixedly connected to the edge-binding frame 14 through the edge-binding frame 9. The inner sides of the two edge-binding frames 14 are rotatably connected to the edge-binding rollers 13. The two edge-binding frames 14 and the edge-binding rollers 13 are symmetrically arranged with respect to the center line of the edge-binding frame 9. The two edge-binding rollers 13 are both conical rollers, and the large end of the conical rollers is clockwise biased towards the cutting seat 3. The two edge-binding rollers 13 can roll and clamp the fabric on both sides under the action of the edge-binding cylinders 15. Through the conical and biased edge-binding rollers 13, the force points of the adhesive strip can be arranged sequentially from the outside to the inside along the direction of travel, reducing the possibility of hollowness inside the edge binding.
[0029] Working principle: When in use, this utility model can be installed at the end of the elastic fabric composite equipment. Through the cutting seat 3 and the electric heating cutting wire 4, the edge of the fabric can be cut by the heat effect of the electric heating wire before edging, ensuring the stability of the cut and avoiding the tearing problem that may occur during mechanical cutting. This improves the cutting stability and reduces the impact of interlayer tearing or delamination on the work process during subsequent edging. At the same time, the two side pressure rollers 11 and the clamping roller 13, together with the baking device 8, can use the edging strip with hot melt adhesive on one side to clamp and roll the double sides and sides of the fabric for edging. Moreover, the clamping roller 13 with a conical and oblique setting can make the force points of the adhesive strip arranged sequentially from the outside to the inside along the travel direction, reducing the possibility of hollow inside the edging and improving the stability of the edging quality.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A binding device for multi-layer high-elasticity fabrics, comprising a connecting seat (1), characterized in that: An electric slide (2) is rotatably connected above the connecting seat (1). A drive motor (6) is fixedly connected to the upper end of the connecting seat (1) away from the electric slide (2). A drive screw (7) is fixedly connected to the output shaft of the drive motor (6) near the electric slide (2). A cutting seat (3) is fixedly connected to the upper side of the electric slide (2). An electric heating cutting wire (4) is provided at the inner end of the cutting seat (3) away from the drive motor (6). A cutting guide roller (5) is rotatably connected to the inner end of the cutting seat (3) close to the drive motor (6). An edge-binding frame (9) is fixedly connected to the upper side of the electric slide (2) away from the cutting seat (3). A side pressure frame (10) is slidably connected to the inner side of the edge-binding frame (9). A side pressure roller (11) is rotatably connected to both sides of the side pressure frame (10) away from the drive motor (6). A side pressure spring (12) is fixedly connected to the middle of the side pressure frame (10) near the drive motor (6). A baking device (8) is fixedly connected to the upper end of the electric slide (2) near the drive motor (6) at the position between the cutting seat (3) and the side pressure frame (10). The edge-binding frame (9) is fixedly connected to the upper and lower sides of the end away from the drive motor (6). The output ends of the two edge-binding cylinders (15) pass through the edge-binding frame (9) and are fixedly connected to the edge-binding frame (14). The inner sides of the two edge-binding frames (14) are rotatably connected to the edge-binding rollers (13).
2. The edge-binding device for multi-layer high-elasticity fabrics according to claim 1, characterized in that, The end of the drive screw (7) away from the drive motor (6) passes through the electric slide (2) and is threadedly engaged with the electric slide (2).
3. The edge-binding device for multi-layer high-elasticity fabrics according to claim 1, characterized in that, The frame of the side pressure frame (10) has guide slopes at both ends of the side pressure roller (11).
4. The edge-binding device for multi-layer high-elasticity fabrics according to claim 1, characterized in that, Both of the clamping rollers (13) are tapered rollers, and the larger end of the tapered roller is clockwise biased toward the cutting seat (3).
5. The edge-binding device for multi-layer high-elasticity fabrics according to claim 1, characterized in that, The two clamping frames (14) and clamping rollers (13) are symmetrically arranged with respect to the centerline of the edge-binding frame (9).
6. The edge-binding device for multi-layer high-elasticity fabrics according to claim 1, characterized in that, The baking machine (8) is provided with a edging feed roller on the side near the side pressure frame (10), and the baking surface of the baking machine (8) is located on the side of the edging feed roller.
7. The edge-binding device for multi-layer high-elasticity fabrics according to claim 1, characterized in that, The end of the side pressure spring (12) away from the side pressure frame (10) is connected to the inner side of the edge frame (9).