A pressing and sewing mechanism for a fully automatic four-sided sewing machine

Abstract

This utility model discloses a pressing and sewing mechanism for a fully automatic four-sided sewing machine, including an operating table. A second displacement device is slidably sleeved at the rear end of the top of the operating table. A steering motor is installed at the top of the second displacement device, and a pressing frame is fixedly installed at the bottom end of the steering motor. A support shaft is fixedly installed at the front end of the operating table, and a clamping device is fixedly installed at the rear end of the operating table. A positioning device is fixedly installed at the top end of the pressing frame. The positioning device includes a contact block, an L-shaped air cylinder, a first piston rod, an insert rod, a special-shaped bracket, a return spring, a connecting rod, a support sleeve, a support plate, a second piston rod, a support vertical rod, and a displacement block. The support vertical rod is fixedly installed at the top center of the contact block, and the L-shaped air cylinder is symmetrically fixedly installed at the top rear end of the contact block. This utility model achieves the purpose of quickly changing the pressing frame through the setting of the positioning device.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, specifically to a pressing and sewing mechanism for a fully automatic four-sided sewing machine. Background Technology

[0002] A four-side sewing machine is a specialized industrial sewing device used to simultaneously or quickly sew the four sides of a material. It is mainly used for efficient edge stitching, binding, and other processes, and is commonly found in clothing, bags, footwear, and home textiles.

[0003] For example, a pattern sewing machine webbing sewing device with Chinese patent publication number CN211972666U includes: a feeding plate, a first pressing component, a second pressing component, and a third pressing component. The feeding plate provides a sewing station for the webbing. The first pressing component is placed on the feeding plate and can press the material sheet on the feeding plate. The second and third pressing components are placed on the feeding plate and symmetrically distributed on both sides of the first pressing component, and can fold the material sheet pressed by the first pressing component from both sides towards the middle. The second and third pressing components can also press the webbing located at the sewing station on the feeding plate from both sides simultaneously.

[0004] When using existing four-sided sewing machines, the pressure plate is installed using bolts, which requires repeated disassembly and reassembly of bolts when changing to different models of pressure plates, thus making it impossible to quickly change the pressure plate. Summary of the Invention

[0005] The purpose of this invention is to provide a pressing and sewing mechanism for a fully automatic four-sided sewing machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressing and sewing mechanism for a fully automatic four-sided sewing machine, including an operating table, a second displacement device slidably sleeved at the top rear end of the operating table, a steering motor installed at the top end of the second displacement device, a pressing frame fixedly installed at the bottom end of the steering motor, a support shaft fixedly installed at the front end of the operating table, and a clamping device fixedly installed at the rear end of the operating table.

[0007] Preferably, a positioning device is fixedly installed at the top of the pressing frame. The positioning device includes a contact block, an L-shaped air cylinder, a first piston rod, an insert rod, a special-shaped bracket, a return spring, a connecting rod, a support sleeve, a support plate, a second piston rod, a support vertical rod, and a displacement block. The support vertical rod is fixedly installed at the top center of the contact block. The L-shaped air cylinder is symmetrically fixedly installed at the top rear end of the contact block. The second piston rod is slidably inserted into the top of the L-shaped air cylinder. The displacement block is fixedly installed at the top of the second piston rod. The first piston rod is slidably inserted into the bottom end of the L-shaped air cylinder. The support plate is fixedly installed at both ends of the support vertical rod. The support sleeve is fixedly installed inside the support plate. The insert rod is slidably inserted into the support sleeve near the contact block. The return spring is fixedly installed between the support sleeve and the insert rod. The connecting rod slidably passes through the support sleeve and connects with the insert rod. The special-shaped bracket is fixedly installed between the connecting rod and the first piston rod.

[0008] Preferably, a sleeve plate is fixedly installed at the center of the top end of the pressing frame.

[0009] Preferably, the contact block is slidably inserted into the inside of the top of the sleeve plate.

[0010] Preferably, the sleeve plate has round holes on its interior and the outer ring of the contact block.

[0011] Preferably, a locking key is fixedly installed at the front end of the displacement block, and a locking groove is opened at the rear end of the support vertical rod. The interior of the L-shaped air cylinder is hollow, and a sealed cavity is formed between the second piston rod, the L-shaped air cylinder, and the first piston rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, this device allows the sleeve plate to be inserted onto the contact block, facilitating quick installation of the pressing frame. Simultaneously, pressing down with the displacement block moves the insertion rod out from inside the contact block, allowing the sleeve plate to align with the contact block. When the displacement block is released, the return spring resets the connecting rod, allowing the insertion rod to penetrate the sleeve plate and insert into the contact block. This confines the sleeve plate to the outer ring of the contact block, enabling quick replacement of the pressing frame. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the second embodiment of the pressing frame of this utility model;

[0016] Figure 3 This is a schematic diagram of the positioning device structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the sleeve plate of this utility model.

[0018] In the diagram: 1-receiving platform, 2-gripper, 3-second displacement device, 4-clamping device, 5-support shaft, 6-operating platform, 7-cutting machine, 8-lower edge bracket, 9-pressing frame, 10-steering motor, 11-first displacement device, 12-positioning device, 13-contact block, 14-L-shaped air cylinder, 15-first piston rod, 16-insertion rod, 17-irregular bracket, 18-reset spring, 19-connecting rod, 20-support sleeve, 21-support plate, 22-second piston rod, 23-support vertical rod, 24-displacement block, 25-sleeve plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0020] Please see Figure 1 An embodiment of this utility model provides a pressing and sewing mechanism for a fully automatic four-sided sewing machine, including an operating table 6. A second displacement device 3 is slidably sleeved at the top rear end of the operating table 6. A steering motor 10 is installed at the top of the second displacement device 3. A pressing frame 9 is fixedly installed at the bottom end of the steering motor 10. A support shaft 5 is fixedly installed at the front end of the operating table 6. A clamping device 4 is fixedly installed at the rear end of the operating table 6.

[0021] Working Principle: During use, the support shaft 5 supports the placement of rolled fabric. Simultaneously, the clamping device 4 contains a cylinder and grippers. When the cylinder is activated, it drives the grippers to clamp the fabric until it is laid flat on the surface of the operating table 6. A drive motor mounted on the top of the lower support 8 drives the cutting machine 7 through the flat fabric, cutting it into squares. Then, the drive motor inside the second displacement device 3 is activated, moving the pressing frame 9 to perpendicular alignment with the cut fabric. The cylinder inside the second displacement device 3 is then activated, pressing the fabric with the pressing frame 9. Finally, the drive motor inside the second displacement device 3... Upon startup, the fabric can be moved to contact the sewing machine at the front of the operating table 6, allowing the edges of the fabric to be sewn. After one side of the fabric is sewn, the drive motor inside the second displacement device 3 can be turned on again, causing the pressing frame 9 to return. At the same time, the steering motor 10 can be turned on, causing the pressing frame 9 and the fabric to rotate, making it easier to sew the remaining edges of the fabric. After the fabric is sewn, the drive motor inside the second displacement device 3 can be turned on, causing the pressing frame 9 to move the fabric to the vertical alignment of the gripper 2. Then, the drive motor inside the first displacement device 11 can be turned on again, causing the gripper 2 to move to clamp the fabric, thus clamping the fabric and transporting it to the top of the receiving table 1. The gripper 2 can then be released to transfer the finished product, completing the work. Example 2

[0022] Based on Example 1, such as Figure 2-4 As shown, a positioning device 12 is fixedly installed at the top of the pressing frame 9. The positioning device 12 includes a contact block 13, an L-shaped air cylinder 14, a first piston rod 15, an insert rod 16, a special-shaped bracket 17, a return spring 18, a connecting rod 19, a support sleeve 20, a support plate 21, a second piston rod 22, a support vertical rod 23, and a displacement block 24. The support vertical rod 23 is fixedly installed at the top center of the contact block 13. The L-shaped air cylinder 14 is symmetrically fixedly installed at the top rear end of the contact block 13. The second piston rod 22 is slidably inserted into the top of the L-shaped air cylinder 14. The shift block 24 is fixedly installed at the top of the second piston rod 22. The first piston rod 15 is slidably inserted into the bottom end of the L-shaped air cylinder 14. The support plate 21 is fixedly installed at both ends of the support vertical rod 23. The support sleeve 20 is fixedly installed inside the support plate 21. The insertion rod 16 is slidably inserted into the support sleeve 20 near the contact block 13. The return spring 18 is fixedly installed between the support sleeve 20 and the insertion rod 16. The connecting rod 19 slides through the support sleeve 20 and connects with the insertion rod 16. The irregular bracket 17 is fixedly installed between the connecting rod 19 and the first piston rod 15.

[0023] A sleeve plate 25 is fixedly installed at the center of the top of the pressing frame 9. It is mounted on the shaft inside the steering motor 10 via a support rod 23, so that the steering motor 10 can drive the pressing frame 9 to rotate when running. Different shaped pressing frames 9 are equipped with the same sleeve plate 25. When the pressing frame 9 needs to be disassembled and replaced, the displacement block 24 can be pressed down, so that the displacement block 24 can drive the second piston rod 22 into the interior of the L-shaped air cylinder 14. At this time, the first piston rod 15 can drive the connecting rod 19 and the insert rod 16 to move away from the contact block 13 via the special-shaped bracket 17, so that the insert rod 16 can be pulled out from the interior of the contact block 13 and the sleeve plate 25, releasing the sleeve plate 25. Then, the pressing frame 9 is moved down to complete the disassembly of the pressing frame 9. Then, the pressing frames 9 of different shapes can be moved to the bottom of the contact block 13 until the sleeve plate 25 is vertically aligned with the contact block 13. Then the pressing frame 9 is moved up until the sleeve plate 25 is vertically aligned with the contact block 13. 5. The sliding sleeve is attached to the outer ring of the contact block 13, and then the displacement block 24 is released. At this time, the elasticity of the return spring 18 will drive the insertion rod 16 to move and reset, so that the insertion rod 16 can move to contact the outer ring surface of the sleeve plate 25. Then, the pressing frame 9 is rotated as a whole until the round hole inside the sleeve plate 25 is horizontally aligned with the insertion rod 16. The return spring 18 can drive the insertion rod 16 to penetrate the sleeve plate 25 and insert into the interior of the contact block 13, completing the installation of the pressing frame 9. At the same time as the insertion rod 16 resets, the special-shaped bracket 17 can drive the first piston rod 15 into the interior of the L-shaped air cylinder 14, so that the second piston rod 22 can drive the displacement block 24 to move upward and reset, completing the reset of the displacement block 24. Furthermore, the key at the front end of the displacement block 24 is displaced in the slot at the rear end of the support vertical rod 23, so that the displacement block 24 can move up and down in a straight line, improving the docking accuracy between the displacement block 24 and the second piston rod 22.

[0024] The contact block 13 is slidably inserted into the top of the sleeve 25 to facilitate the connection between the sleeve 25 and the contact block 13.

[0025] Both the inside of the sleeve plate 25 and the outer ring of the contact block 13 have round holes, which facilitates the insertion rod 16 to pass through the sleeve plate 25 and be inserted into the inside of the contact block 13.

[0026] The front end of the displacement block 24 is fixedly installed with a key, and the rear end of the support rod 23 is provided with a slot. The interior of the L-shaped air cylinder 14 is hollow, and a sealed cavity is formed between the second piston rod 22, the L-shaped air cylinder 14 and the first piston rod 15. The reset spring 18 can drive the insertion rod 16 to reset.

[0027] In this embodiment, the same sleeve plate 25 is installed on the pressing frame 9 of different shapes. When the pressing frame 9 needs to be disassembled and replaced, the displacement block 24 can be pressed down, so that the displacement block 24 can drive the second piston rod 22 into the interior of the L-shaped air cylinder 14. At this time, the first piston rod 15 can drive the connecting rod 19 and the insert rod 16 to move away from the contact block 13 through the special bracket 17, so that the insert rod 16 can be pulled out from the interior of the contact block 13 and the sleeve plate 25, releasing the sleeve plate 25. Then, the pressing frame 9 is moved down to complete the disassembly of the pressing frame 9. Then, the pressing frame 9 of different shapes can be moved to the bottom end of the contact block 13 until the sleeve plate 25 is vertically aligned with the contact block 13. Then the pressing frame 9 is moved up until the sleeve plate 25 slides onto the outer ring of the contact block 13. Then the displacement block 24 is released. At this time, the air cylinder... The elasticity of the return spring 18 will drive the insertion rod 16 to move and reset, so that the insertion rod 16 can move to contact the outer ring surface of the sleeve plate 25. Then, the pressing frame 9 is rotated as a whole until the round hole inside the sleeve plate 25 is horizontally aligned with the insertion rod 16. The return spring 18 can drive the insertion rod 16 to pass through the sleeve plate 25 and insert into the interior of the contact block 13, completing the installation of the pressing frame 9. At the same time as the insertion rod 16 resets, the special-shaped bracket 17 can drive the first piston rod 15 into the interior of the L-shaped air cylinder 14, so that the second piston rod 22 can drive the displacement block 24 to move upward and reset, completing the reset of the displacement block 24. Furthermore, the displacement block 24 is displaced in the slot at the rear end of the support vertical rod 23 by the locking key at the front end of the displacement block 24, so that the displacement block 24 can move up and down in a straight line, improving the docking accuracy between the displacement block 24 and the second piston rod 22, thus completing the work.

[0028] 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 presser sewing mechanism of a fully automatic four-edge sewing machine comprising an operating table (6), characterized in that: The top rear end of the operating table (6) is slidably sleeved with a second displacement device (3), the top end of the second displacement device (3) is equipped with a steering motor (10), the bottom end of the steering motor (10) is fixedly installed with a pressing frame (9), the front end of the operating table (6) is fixedly installed with a support shaft (5), and the rear end of the operating table (6) is fixedly installed with a clamping device (4). A positioning device (12) is fixedly installed at the top of the pressing frame (9). The positioning device (12) includes a contact block (13), an L-shaped air cylinder (14), a first piston rod (15), an insert rod (16), a special-shaped bracket (17), a return spring (18), a connecting rod (19), a support sleeve (20), a support plate (21), a second piston rod (22), a support vertical rod (23), and a displacement block (24). The support vertical rod (23) is fixedly installed at the top center of the contact block (13). The L-shaped air cylinder (14) is symmetrically fixedly installed at the top rear end of the contact block (13). The second piston rod (22) is slidably inserted into the top of the L-shaped air cylinder (14). The displacement block... (24) is fixedly installed at the top of the second piston rod (22), the first piston rod (15) is slidably inserted into the bottom of the L-shaped air cylinder (14), the support plate (21) is fixedly installed at both ends of the support vertical rod (23), the support sleeve (20) is fixedly installed inside the support plate (21), the insertion rod (16) is slidably inserted into the support sleeve (20) near the contact block (13), the reset spring (18) is fixedly installed between the support sleeve (20) and the insertion rod (16), the connecting rod (19) slides through the support sleeve (20) and connects with the insertion rod (16), and the special-shaped bracket (17) is fixedly installed between the connecting rod (19) and the first piston rod (15).

2. The pressing and sewing mechanism of a fully automatic four-sided sewing machine according to claim 1, characterized in that: A sleeve plate (25) is fixedly installed at the top center of the pressing frame (9).

3. The pressing and sewing mechanism of a fully automatic four-sided sewing machine according to claim 2, characterized in that: The contact block (13) is slidably inserted into the top of the sleeve (25).

4. The pressing and sewing mechanism of a fully automatic four-sided sewing machine according to claim 3, characterized in that: The sleeve (25) has round holes inside and the contact block (13) has round holes on the outer ring.

5. The pressing and sewing mechanism of a fully automatic four-sided sewing machine according to claim 4, characterized in that: The front end of the displacement block (24) is fixedly installed with a key, and the rear end of the support rod (23) is provided with a slot.

6. The pressing and sewing mechanism of a fully automatic four-sided sewing machine according to claim 5, characterized in that: The L-shaped air cylinder (14) is hollow inside, and a sealed cavity is formed between the second piston rod (22), the L-shaped air cylinder (14) and the first piston rod (15).

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