Quick sewing device for zippers
By designing a limiting block and a bidirectional threaded rod, and applying a drive motor, the problem of inconvenient replacement of zipper seam blocks is solved, enabling efficient and flexible sewing of the zipper sewing device. It is suitable for various materials and improves sewing quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU DONGYUAN TOURIST PROD CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-05
AI Technical Summary
In traditional zipper sewing devices, the connection method between the zipper seam block and the sewing machine is not easy to replace and is prone to thread stripping, affecting production efficiency and sewing quality.
The design incorporates a limiting block and a two-way threaded rod, allowing for quick replacement of the zipper seam block by rotating the handle. The drive motor and drive wheel ensure uniform speed feeding of the fabric and zipper, improving sewing efficiency and quality.
It enables flexible replacement of zipper seam blocks and improves stitching quality, and is suitable for fabrics and zippers of different sizes and thicknesses, thereby improving production efficiency and equipment applicability.
Smart Images

Figure CN224199618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zipper sewing machine technology, and in particular to a device for quick sewing of bag zippers. Background Technology
[0002] A rapid zipper sewing device is a mechanical device specifically designed to improve the efficiency of zipper sewing. It is mainly used in industries such as garment manufacturing, bag production, car seats, tents, and sofas to quickly and accurately sew zippers onto fabrics or leather. Traditional zipper sewing methods typically take a long time and require highly skilled operators, while the rapid zipper sewing device, through its automated and intelligent design, significantly improves production efficiency and reduces labor intensity.
[0003] In existing zipper sewing devices, most connect the fabric and zipper through zipper seam blocks, making it easier for operators to sew the fabric and zipper together. This improves the sewing quality between the fabric and zipper. However, traditional zipper seam blocks are mostly connected to the sewing machine by threaded connections. This connection method is not convenient for replacing zipper seam blocks and is prone to problems such as thread stripping after repeated use. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a quick sewing device for bag zippers.
[0005] This utility model is achieved by the following technical solution: a quick sewing device for zippers, including a support base, a sewing machine is provided on the top of the support base, a sewing adjustment component is provided inside the support base, and a limit component is provided on the top of the support base.
[0006] The stitching adjustment assembly includes a limiting groove, a zipper seam block slidably connected to the inner wall of the limiting groove, a limiting block groove formed in the inner wall of the limiting groove, a limiting block slidably connected to the inner wall of the limiting block groove, the bottom of the limiting block slidably connected to the surface of the zipper seam block, a bidirectional threaded rod threadedly connected to the inner wall of the limiting block, a rotating handle fixedly connected to the end of the bidirectional threaded rod away from the limiting block, and the outer wall of the bidirectional threaded rod rotatably connected to the inner wall of the support base.
[0007] As a further improvement to the above solution, two limiting block grooves are provided, and the two limiting block grooves are symmetrically arranged with the zipper seam block as the center. There are two limiting blocks, and the two limiting blocks are symmetrically arranged with the zipper seam block as the center.
[0008] By using the above technical solution, rotating the handle causes the bidirectional threaded rod to rotate on the inner wall of the support base, thereby causing the limiting block to slide along the outer wall of the bidirectional threaded rod towards the inner wall of the limiting block groove, thus causing the limiting block to detach from the surface of the zipper seam block.
[0009] As a further improvement to the above solution, the limiting component includes a rotating groove, which is formed on the top of the support base. A rotating rod is rotatably connected to the inner wall of the rotating groove, and a driven wheel is fixedly connected to the outer wall of the rotating rod. A second support base is fixedly connected to the top of the support base.
[0010] As a further improvement to the above solution, the inner wall of the second support base is provided with a clearance groove, the inner wall of the clearance groove is slidably connected to a limit shaft, the inner wall of the limit shaft is rotatably connected to a drive wheel, the top of the limit shaft is rotatably connected to an adjusting screw, and the outer wall of the adjusting screw is threadedly connected to the inner wall of the second support base.
[0011] As a further improvement to the above solution, two clearance slots are provided, and the two clearance slots are symmetrically arranged with the driven wheel as the center. Two limit shafts are provided, and the two limit shafts are symmetrically arranged with the driven wheel as the center.
[0012] As a further improvement to the above solution, a T-shaped groove is provided on the inner wall of the second support base, and a T-shaped slider is slidably connected to the inner wall of the T-shaped groove. A motor limit seat is fixedly connected to the end of the T-shaped slider away from the T-shaped groove.
[0013] As a further improvement to the above solution, a drive motor is fixedly connected to the inner wall of the motor limiting seat, a motor rotating rod is fixedly connected to the output end of the drive motor, and the end of the motor rotating rod away from the drive motor is fixedly connected to the surface of the drive wheel.
[0014] Through the above technical solution, the drive motor is operated, and the output end of the drive motor rotates the motor rotating rod. The motor rotating rod rotates the drive wheel, causing the drive wheel to rotate on the inner wall of the limit shaft. Then, the drive wheel transports the fabric and zipper towards the sewing machine. Thus, while the drive wheel is transporting the fabric and zipper, the fabric and zipper drive the driven wheel to rotate around the rotating rod, thereby transporting the fabric towards the sewing machine at a uniform speed and improving the sewing quality of the sewing machine when sewing the fabric and zipper.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention utilizes a rotating handle to rotate a bidirectional threaded rod within the support base. This causes the limiting block to slide along the outer wall of the bidirectional threaded rod towards the inner wall of the limiting block groove, thereby disengaging the limiting block from the zipper seam block surface. This allows the zipper seam block to be replaced, improving the flexibility and applicability of replacing zipper seam blocks of different sizes.
[0017] This invention utilizes a drive motor to rotate a motor rotating rod at its output end. The motor rotating rod then rotates a drive wheel, causing the drive wheel to rotate within the limit shaft. This drive wheel then transports the fabric and zipper towards the sewing machine. Simultaneously, the fabric and zipper drive the driven wheel to rotate around the rotating rod, ensuring the fabric is transported towards the sewing machine at a uniform speed. This improves the sewing quality of the fabric and zipper. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the stitching adjustment component of this utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the limiting groove of this utility model;
[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A in the middle;
[0022] Figure 5 This is a schematic diagram of the limiting component structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the second support structure of this utility model;
[0024] Figure 7 This is a schematic diagram of the drive motor structure of this utility model.
[0025] Explanation of key symbols:
[0026] 1. Support base; 2. Sewing machine; 3. Sewing adjustment assembly; 301. Limiting groove; 302. Zipper seam block; 303. Limiting block slide groove; 304. Limiting block; 305. Bidirectional threaded rod; 306. Rotating handle; 4. Limiting assembly; 401. Rotating groove; 402. Rotating rod; 403. Driven wheel; 404. Support base two; 405. Clearance groove; 406. Limiting shaft; 407. Drive wheel; 408. Adjusting screw; 409. T-shaped slide groove; 410. T-shaped slider; 411. Motor limiting seat; 412. Drive motor; 413. Motor rotating rod. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0028] Example:
[0029] Please combine Figure 1-7 This embodiment of a bag zipper quick sewing device includes a support base 1, a sewing machine 2 is provided on the top of the support base 1, a sewing adjustment component 3 is provided inside the support base 1, and a limit component 4 is provided on the top of the support base 1.
[0030] The sewing adjustment assembly 3 includes a limiting groove 301, a zipper seam block 302 slidably connected to the inner wall of the limiting groove 301, a limiting block groove 303 formed in the inner wall of the limiting groove 301, a limiting block 304 slidably connected to the inner wall of the limiting block groove 303, the bottom of the limiting block 304 slidably connected to the surface of the zipper seam block 302, a bidirectional threaded rod 305 threadedly connected to the inner wall of the limiting block 304, a rotating handle 306 fixedly connected to the end of the bidirectional threaded rod 305 away from the limiting block 304, and the outer wall of the bidirectional threaded rod 305 rotatably connected to the inner wall of the support base 1.
[0031] There are two limit block grooves 303, which are symmetrically arranged with the zipper seam block 302 as the center. There are two limit blocks 304, which are symmetrically arranged with the zipper seam block 302 as the center.
[0032] The limiting component 4 includes a rotating groove 401, which is formed on the top of the support base 1. A rotating rod 402 is rotatably connected to the inner wall of the rotating groove 401, and a driven wheel 403 is fixedly connected to the outer wall of the rotating rod 402. A second support base 404 is fixedly connected to the top of the support base 1.
[0033] The inner wall of the second support base 404 is provided with a clearance groove 405. The inner wall of the clearance groove 405 is slidably connected to a limit shaft 406. The inner wall of the limit shaft 406 is rotatably connected to a drive wheel 407. The top of the limit shaft 406 is rotatably connected to an adjusting screw 408. The outer wall of the adjusting screw 408 is threadedly connected to the inner wall of the second support base 404.
[0034] There are two clearance grooves 405, which are symmetrically arranged with the driven wheel 403 as the center. There are two limit shafts 406, which are symmetrically arranged with the driven wheel 403 as the center.
[0035] The inner wall of the support base 404 is provided with a T-shaped groove 409, and a T-shaped slider 410 is slidably connected to the inner wall of the T-shaped groove 409. A motor limit seat 411 is fixedly connected to the end of the T-shaped slider 410 away from the T-shaped groove 409.
[0036] A drive motor 412 is fixedly connected to the inner wall of the motor limit seat 411. A motor rotating rod 413 is fixedly connected to the output end of the drive motor 412. The end of the motor rotating rod 413 away from the drive motor 412 is fixedly connected to the surface of the drive wheel 407.
[0037] The implementation principle of the quick zipper sewing device in this embodiment is as follows: By rotating the handle 306, the handle 306 drives the bidirectional threaded rod 305 to rotate on the inner wall of the support base 1, thereby causing the limiting block 304 to slide along the outer wall of the bidirectional threaded rod 305 towards the inner wall of the limiting block groove 303, thus causing the limiting block 304 to disengage from the surface of the zipper seam block 302, thereby causing the zipper seam block 302 to lose its limiting position. Then, the zipper seam block 302 can be replaced, improving the flexibility and applicability of replacing zipper seam blocks 302 of different sizes. Then, by running the drive motor 412, the output end of the drive motor 412 rotates the motor rotating rod 413, and the motor rotating rod 413 rotates the drive wheel 407, causing the drive wheel 407 to rotate on the inner wall of the limiting shaft 406, and then the drive wheel 407 transports the fabric and zipper towards the sewing machine 2, so that while the drive wheel 407 is transporting the fabric and zipper, the fabric and zipper are also being transported from the sewing machine 2. The driving wheel 403 rotates around the rotating rod 402, thereby transporting the fabric at a uniform speed towards the sewing machine 2, improving the sewing quality of the sewing machine 2 when sewing fabric and zippers. The adjusting screw 408 can be rotated to move upwards along the support base 404, simultaneously driving the limiting shaft 406. The limiting shaft 406 then drives the driving wheel 407 to slide upwards along the clearance groove 405, increasing the distance between the driving wheel 407 and the driven wheel 403. This makes it suitable for sewing fabrics and zippers of different thicknesses, increasing the flexibility and applicability of the equipment. As the driving wheel 407 moves upwards, it drives the motor rotating rod 413, which in turn drives the drive motor 412. The drive motor 412 drives the motor limiting seat 411, which in turn drives the T-shaped slider 410, causing the T-shaped slider 410 to slide upwards along the T-shaped groove 409.
[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A device for quickly sewing bag zippers, characterized in that, Includes a support base (1), a sewing machine (2) is provided on the top of the support base (1), a sewing adjustment component (3) is provided inside the support base (1), and a limit component (4) is provided on the top of the support base (1); The stitching adjustment assembly (3) includes a limiting groove (301), a zipper seam block (302) is slidably connected to the inner wall of the limiting groove (301), a limiting block groove (303) is opened on the inner wall of the limiting groove (301), a limiting block (304) is slidably connected to the inner wall of the limiting block groove (303), the bottom of the limiting block (304) is slidably connected to the surface of the zipper seam block (302), a bidirectional threaded rod (305) is threadedly connected to the inner wall of the limiting block (304), a rotating handle (306) is fixedly connected to the end of the bidirectional threaded rod (305) away from the limiting block (304), and the outer wall of the bidirectional threaded rod (305) is rotatably connected to the inner wall of the support base (1).
2. The quick-sewing device for bag zippers as described in claim 1, characterized in that: Two limiting block grooves (303) are provided, and the two limiting block grooves (303) are symmetrically arranged with the zipper seam block (302) as the center. Two limiting blocks (304) are provided, and the two limiting blocks (304) are symmetrically arranged with the zipper seam block (302) as the center.
3. The quick-sewing device for bag zippers as described in claim 1, characterized in that: The limiting component (4) includes a rotating groove (401), which is opened on the top of the support base (1). A rotating rod (402) is rotatably connected to the inner wall of the rotating groove (401), and a driven wheel (403) is fixedly connected to the outer wall of the rotating rod (402). A second support base (404) is fixedly connected to the top of the support base (1).
4. The quick-sewing device for bag zippers as described in claim 3, characterized in that: The inner wall of the second support base (404) is provided with a relief groove (405). The inner wall of the relief groove (405) is slidably connected to a limiting shaft (406). The inner wall of the limiting shaft (406) is rotatably connected to a drive wheel (407). The top of the limiting shaft (406) is rotatably connected to an adjusting screw (408). The outer wall of the adjusting screw (408) is threadedly connected to the inner wall of the second support base (404).
5. The quick-sewing device for bag zippers as described in claim 4, characterized in that: Two clearance grooves (405) are provided, and the two clearance grooves (405) are symmetrically arranged with the driven wheel (403) as the center. Two limit shafts (406) are provided, and the two limit shafts (406) are symmetrically arranged with the driven wheel (403) as the center.
6. The quick-sewing device for bag zippers as described in claim 4, characterized in that: The inner wall of the support base (404) is provided with a T-shaped groove (409), and a T-shaped slider (410) is slidably connected to the inner wall of the T-shaped groove (409). A motor limit seat (411) is fixedly connected to the end of the T-shaped slider (410) away from the T-shaped groove (409).
7. The quick-sewing device for bag zippers as described in claim 6, characterized in that: A drive motor (412) is fixedly connected to the inner wall of the motor limiting seat (411), and a motor rotating rod (413) is fixedly connected to the output end of the drive motor (412). The end of the motor rotating rod (413) away from the drive motor (412) is fixedly connected to the surface of the drive wheel (407).