Cloth welding device

Abstract

The invention discloses a cloth welding device which comprises a pressing mechanism and a cloth welding device, and the pressing mechanism is arranged above the cloth welding device. The pressing mechanism comprises a support, a driving piece, a movable block, a pressing head, a pressing head fixing block, a cloth protection plate, an elastic piece and a first limiting block, the driving piece drives the cloth protection plate to move downwards to press multiple layers of cloth to be welded, then the pressing head penetrates through the cloth protection plate to press the stacked cloth on the cloth welding device for welding, the cloth protection plate prevents the cloth from being wrinkled and dislocated, and the cloth welding efficiency is improved. And the cloth welding yield is improved.

Description

Technical Field

[0001] This invention relates to the field of fabric production equipment, and more specifically to a fabric welding device. Background Technology

[0002] Fabric welding is a common process in fabric production. Usually, the operator holds multiple layers of fabric and brings the stacked fabric close to the welding head to perform the welding operation. Because the fabric itself is elastic, it will wrinkle once it is subjected to a stretching force. Even skilled workers may cause the fabric to wrinkle, which will affect the welding quality. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a fabric welding device, which primarily solves the problem of fabric wrinkles.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention provides a fabric welding device, comprising a pressing mechanism and a fabric welding device, wherein the pressing mechanism is disposed above the fabric welding device; The pressing mechanism includes a bracket, a driving component, a movable block, a pressing head, a pressing head fixing block, a fabric guard plate, an elastic component, and a first limiting block; The drive unit is fixedly mounted on the bracket, the pressure head fixing block is mounted on the drive unit, the pressure head is mounted on the bottom of the pressure head fixing block, the fabric guard plate is fixed on the movable block and has a horizontal base plate located below the movable block, the horizontal base plate is provided with a relief groove, and the pressure head is opposite to the welding head of the fabric welder through the relief groove; the drive unit is used to drive the pressure head fixing block to move up and down. The movable block is slidably connected to the bracket, and the first limiting block is fixedly installed on the movable block. The first limiting block has a hanging platform extending above the pressure head fixing block, and the first limiting block is hung on the pressure head fixing block through the hanging platform. The movable block has a through hole, and the lower end of the pressure head fixing block slides through the through hole. The upper side of the pressure head fixing block has a boss, which is located between the hanging platform and the movable block. The elastic element is located between the boss and the movable block.

[0005] Preferably, the movable block is equipped with a second limiting block, and a limiting component is installed on the bracket. The limiting component is located below the second limiting block, and the height of the limiting component on the bracket is adjustable.

[0006] Preferably, the limiting component is a limiting screw, and a limiting screw mounting block is installed on the bracket. The limiting screw mounting block has a threaded hole, and the limiting screw is installed in the threaded hole of the limiting screw mounting block by means of a nut.

[0007] Preferably, a vertical guide rail is installed on one side of the movable block, and a slider is installed on the bracket, with the slider fitted onto the guide rail to form a sliding connection.

[0008] Preferably, the driving component is a cylinder, and a floating joint is installed at the lower end of the cylinder push rod, which is connected to the pressure head fixing block.

[0009] Preferably, the elastic element is a compression spring, and the boss and the movable block are provided with spring mounting holes, with both ends of the compression spring inserted into the spring mounting holes on the boss and the movable block, respectively.

[0010] Preferably, the fabric welding device is an ultrasonic fabric welding device, which includes an ultrasonic transducer and an ultrasonic welding head, with the ultrasonic welding head facing the pressure head.

[0011] The present invention has the following beneficial effects: The fabric welding device provided by this invention drives a fabric guard plate to move down and press down on the multi-layered fabric to be welded. Then, the pressure head passes through the fabric guard plate and presses the stacked fabric onto the fabric welding device for welding, realizing the pre-forming or one-time forming of multi-layered fabric cutting and sewing. The fabric guard plate presses down on the fabric before the pressure head, avoiding fabric wrinkles and misalignment, and improving the fabric welding yield. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the fabric welding device according to an embodiment of the present invention; Figure 2 yes Figure 1 Another angle view of the fabric welding device; Figure 3 yes Figure 1 A cross-sectional view of the fabric welding device; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram showing the relative positions of the pressure head and the fabric guard plate in the initial state; Figure 6 This is a schematic diagram showing the fabric guard plate reaching the predetermined lowest position, and the pressure head continuing to move downward relative to the fabric guard plate. At this point, the pressure head has not yet reached the predetermined lowest position.

[0013] Labeling Explanation: 1. Bracket; 2. Drive component; 3. Movable block; 4. Pressure head; 5. Pressure head fixing block; 6. Fabric guard plate; 7. Elastic component; 8. First limit block; 9. Floating joint; 10. Push rod; 11. Relief groove; 12. Hanging platform; 13. Boss; 14. Second limit block; 15. Limit screw; 16. Guide rail; 17. Slider; 18. Limit screw mounting block; 19. Nut; 20. Fabric; 21. Welding head; 22. Fabric welding device.

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] like Figures 1 to 6As shown in the figure, this embodiment discloses a fabric welding device (hereinafter referred to as welding device), including a pressing mechanism and a fabric welder 22, with the pressing mechanism disposed above the fabric welder 22.

[0016] The pressing mechanism includes a bracket 1, a driving component 2, a movable block 3, a pressing head 4, a pressing head fixing block 5, a fabric guard plate 6, an elastic component 7, and a first limiting block 8. The driving component 2 is preferably a cylinder, but a hydraulic cylinder or other mechanism with similar function can also be used. A floating joint 9 is installed at the lower end of the cylinder's push rod 10, connecting the pressing head fixing block 5 via the floating joint 9. The elastic component 7 is preferably a compression spring, but a disc spring, sheet spring, etc., can also be used. The pressing mechanism shown in the figure has two working positions.

[0017] The cylinder is fixedly mounted on the bracket 1. The cylinder push rod 10 is set vertically and a floating joint 9 is installed at the lower end. A pressure head fixing block 5 is installed at the lower end of the floating joint 9, and a pressure head 4 is installed at the bottom of the pressure head fixing block 5.

[0018] The fabric guard plate 6 is fixed on the movable block 3 and has a horizontal base plate located below the movable block 3. The horizontal base plate is provided with a relief groove 11, and the pressure head 4 is opposite to the welding head 21 of the fabric welder 22 through the relief groove 11.

[0019] The first limiting block 8 is fixedly installed on the movable block 3. The first limiting block 8 has a hanging platform 12 extending above the pressure head fixing block 5. The first limiting block 8 is hung on the pressure head fixing block 5 through the hanging platform 12. The movable block 3 has a through hole, and the lower end of the pressure head fixing block 5 slides through the through hole. The upper side of the pressure head fixing block 5 has a boss 13, which is located between the hanging platform 12 and the movable block 3. A compression spring is provided between the boss 13 and the movable block 3. In a specific structure, the boss 13 and the movable block 3 have spring mounting holes, and the two ends of the compression spring are respectively inserted into the spring mounting holes on the boss 13 and the movable block 3. In other embodiments, the installation method of the compression spring is not limited to this.

[0020] The movable block 3 is slidably connected to the bracket 1. The movable block 3 is equipped with a second limiting block 14. The bracket 1 is equipped with a limiting component, which is located below the second limiting block 14. The height of the limiting component on the bracket 1 is adjustable.

[0021] Preferably, the movable block 3 is slidably connected to the bracket 1 via a guide rail 16 and a slider 17, with the guide rail 16 being vertically positioned. In the specific structure, the movable block 3 is L-shaped, having a horizontal part and a vertical part. The fabric guard plate 6, the pressure head fixing block 5, and the first limiting block 8 are all installed on the horizontal part of the movable block 3. A vertical guide rail 16 is installed on one side of the vertical part of the movable block 3, and the slider 17 is fixed to the bracket 1, forming a sliding connection by fitting the slider 17 onto the guide rail 16. The guide rail 16 and the slider 17 cooperate to guide the up and down movement of the movable block 3, thereby improving the stability of the lifting and lowering of the pressure head 4.

[0022] The second limiting block 14 stops moving downwards when it contacts the limiting member, at which point the fabric guard plate 6 reaches its lowest position. Depending on the thickness of the fabric 20, the height of the limiting member on the bracket 1 can be adjusted, thereby adjusting the descent height of the fabric guard plate 6. In this embodiment, the limiting member is preferably a limiting screw 15, and a limiting screw mounting block 18 is installed on the bracket 1. The limiting screw mounting block 18 has a threaded hole, and the limiting screw 15 is installed in the threaded hole of the limiting screw mounting block 18 through a nut 19. In other embodiments, the limiting member is not limited to the limiting screw 15. In other embodiments, the method for limiting the descent height of the movable plate is not limited to this. For example, a baffle can be installed on the bracket 1, the height of which is adjustable. The baffle extends to a position below the movable plate that does not interfere with the fabric guard plate 6, and the movable plate stops moving downwards when it reaches the baffle position.

[0023] Under normal conditions, due to the supporting force of the compression spring on the pressure head fixing block 5, the top of the pressure head fixing block 5 contacts the mounting platform 12 of the first limiting block 8, and there is a certain distance between the protrusion 13 of the pressure head fixing block 5 and the movable block 3. The protrusion 13 moves back and forth between the mounting platform 12 and the movable block 3. Under normal conditions, the pressure head 4 is retracted above the fabric guard plate 6.

[0024] Fabric welding is a conventional technology in the fabric production process. The fabric welding device 22 described in this embodiment can be a commercially available one. For example, the fabric welding device 22 described in this embodiment is an ultrasonic fabric welding device 22. The ultrasonic fabric welding device 22 includes an ultrasonic transducer and an ultrasonic welding head 21. The ultrasonic transducer provides welding power to the ultrasonic welding head 21, and the ultrasonic welding head 21 is opposite to the pressure head 4.

[0025] Operating principle: The cylinder push rod 10 extends, causing the floating joint 9, pressure head 4 and pressure head fixing block 5 to move down. The movable block 3 is hung on the floating joint 9 through the hanging platform 12 of the first limiting member. The movable block 3 moves down synchronously with the floating joint 9. When the second limiting block 14 contacts the limiting member, the movable plate stops moving down. At this time, the fabric guard plate 6 has descended to the lowest point and pressed the fabric 20. The fabric guard plate 6 is in a downward pop-out state relative to the pressure head 4. The fabric guard plate 6 contacts the fabric 20 before the pressure head 4, so that the fabric guard plate 6 can protect the fabric 20 first and ensure that the fabric 20 is flat. Next, the cylinder push rod 10 continues to extend and drives the pressure head 4 and pressure head fixing block 5 to continue to move down. The pressure head fixing block 5 leaves the hanging platform 12 and squeezes the compression spring. The pressure head 4 moves down to the end of the designed compression stroke. At this time, the pressure head 4 passes through the relief groove 11 on the fabric guard plate 6 and contacts the fabric 20, pressing the fabric 20 tightly onto the welding head 21 of the fabric welder 22 for welding. After the fabric 20 is welded, the cylinder push rod 10 retracts, the compression spring rebounds, the pressure head fixing block 5 moves upward and drives the movable block 3 to move upward and reset via the hanging platform 12.

[0026] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features therein. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

Claims

1. A fabric welding device, characterized in that, It includes a pressing mechanism and a fabric welding device, with the pressing mechanism positioned above the fabric welding device; The pressing mechanism includes a bracket, a driving component, a movable block, a pressing head, a pressing head fixing block, a fabric guard plate, an elastic component, and a first limiting block; The drive unit is fixedly mounted on the bracket, the pressure head fixing block is mounted on the drive unit, the pressure head is mounted on the bottom of the pressure head fixing block, the fabric guard plate is fixed on the movable block and has a horizontal base plate located below the movable block, the horizontal base plate is provided with a relief groove, and the pressure head is opposite to the welding head of the fabric welder through the relief groove; the drive unit is used to drive the pressure head fixing block to move up and down. The movable block is slidably connected to the bracket, and the first limiting block is fixedly installed on the movable block. The first limiting block has a hanging platform extending above the pressure head fixing block, and the first limiting block is hung on the pressure head fixing block through the hanging platform. The movable block has a through hole, and the lower end of the pressure head fixing block slides through the through hole. The upper side of the pressure head fixing block has a boss, which is located between the hanging platform and the movable block. The elastic element is located between the boss and the movable block.

2. The fabric welding device according to claim 1, characterized in that, The movable block is equipped with a second limiting block, and a limiting component is installed on the bracket. The limiting component is located below the second limiting block, and the height of the limiting component on the bracket is adjustable.

3. The fabric welding device according to claim 2, characterized in that, The limiting component is a limiting screw. A limiting screw mounting block is installed on the bracket. The limiting screw mounting block has a threaded hole. The limiting screw is installed in the threaded hole of the limiting screw mounting block by a nut.

4. The fabric welding device according to claim 1, characterized in that, A vertical guide rail is installed on one side of the movable block, and a slider is installed on the bracket. The slider fits onto the guide rail to form a sliding connection.

5. The fabric welding apparatus according to claim 1, characterized in that, The driving component is a cylinder, and a floating joint is installed at the lower end of the cylinder push rod, which is connected to the pressure head fixing block.

6. The fabric welding apparatus according to claim 1, characterized in that, The elastic element is a compression spring. The boss and the movable block are provided with spring mounting holes. The two ends of the compression spring are respectively inserted into the spring mounting holes on the boss and the spring mounting holes on the movable block.

7. The fabric welding apparatus according to claim 1, characterized in that, The fabric welding device is an ultrasonic fabric welding device, which includes an ultrasonic transducer and an ultrasonic welding head, with the ultrasonic welding head facing the pressure head.

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