A device for positioning a serging machine

Abstract

The application discloses a hem positioning device for sports clothing customization, a plurality of cutting piece clamps are evenly distributed at equal intervals below the middle part of a three-dimensional sliding table, a clamping assembly is installed at each moving end of a synchronous sliding table, a supporting cross rod is arranged below a transmission cross rod, first cross rods are arranged at the two sides of the supporting cross rod, first push rods and third push rods are arranged at the two sides of the end of the supporting cross rod away from the synchronous sliding table, a second motor is installed at the telescopic end of the first push rod, a second push rod is horizontally installed at the lower end of the driving shaft of the second motor, a second cross rod is arranged below the telescopic end of the second push rod, a third motor is installed at the telescopic end of the third push rod, a fourth push rod is horizontally installed at the upper end of the driving shaft of the third motor, a third cross rod is arranged below the telescopic end of the fourth push rod, and a plurality of clamping edge mechanisms are arranged on the first cross rod, the second cross rod and the third cross rod in a side-by-side mode and abut each other, and the processed sports clothing is more efficient in cooperation with wearers in sports.

Description

Technical Field

[0001] This invention relates to the field of garment processing technology, specifically a seam positioning device for custom sportswear. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the fabric, so that one or more layers of fabric are interwoven or sewn together. The stitches produced are neat, beautiful, flat and strong, and the sewing speed is fast.

[0003] Patent document CN116103846A discloses an automated edge-sewing device and its processing method. It includes: a feeding mechanism, a cutting mechanism, an edge-sewing mechanism, a material discharge mechanism, and a central controller. Through the design of the edge-sewing of materials, it adopts a support bracket, a feeder, a cutting mechanism, an edge-sewing mechanism, and a carrier.

[0004] The above-mentioned device has the following shortcomings: it cannot be adaptively adjusted according to the trajectory shape of the edge of the cut piece during use, and it is not suitable for edge sewing of three-dimensional elastic fabrics. Furthermore, the device is prone to wrinkling of the edge of the cut piece due to sudden changes in the angle and speed of movement during sewing, resulting in a high scrap rate of the sewing effect. At the same time, the edge sewing trajectory of the device cannot be flexibly changed, and it is only suitable for sewing simple shaped cut pieces. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems and shortcomings by providing a seam positioning device for custom sportswear, thereby improving overall work efficiency.

[0006] The technical problem solved by this invention is:

[0007] (1) The above device cannot be adaptively adjusted according to the trajectory shape of the cut piece edge when in use, and cannot be applied to the edge sewing of three-dimensional elastic fabrics.

[0008] (2) The above-mentioned device is prone to wrinkles on the edge of the cut piece due to sudden changes in the angle and speed of movement when sewing, resulting in a high scrap rate of the sewing effect.

[0009] (3) The edge stitching trajectory of the above device cannot be flexibly changed and is only suitable for the seam edge of simple shaped pieces.

[0010] The objective of this invention can be achieved through the following technical solution: A seam positioning device for custom sportswear includes a three-dimensional slide table. Several equally spaced and uniformly distributed cut piece holders are provided below the center of the three-dimensional slide table. Each cut piece holder includes a synchronous slide table. Clamping components are installed on both moving ends of the synchronous slide table, and the two clamping components are symmetrical to each other. Each clamping component includes a transmission crossbar. A support crossbar is provided below the upper transmission crossbar. First crossbars are provided on both sides of the support crossbar. First push rods and third push rods are provided on both sides of the end of the support crossbar furthest from the synchronous slide table. A second motor is installed at the telescopic end of the first push rod. A second push rod is horizontally installed at the lower end of the drive shaft of the second motor. A second crossbar is provided below the telescopic end of the second push rod. A third motor is installed at the telescopic end of the third push rod. A fourth push rod is horizontally installed at the upper end of the drive shaft of the third motor. A third crossbar is provided below the telescopic end of the fourth push rod. Several edge clamping mechanisms arranged side-by-side and abutting each other are installed on the first, second, and third crossbars.

[0011] As a further embodiment of the invention, the second push rod is connected to the second horizontal rod via the first vertical rod, and the fourth push rod is connected to the third horizontal rod via the second vertical rod. The first motor, the second motor, and the third motor are all stepper motors.

[0012] As a further embodiment of the invention, the clamping mechanism includes a first slide table, a vertical guide rail on one side of the first slide table, a scissor bracket between the first slide table and the vertical guide rail, and a cut piece clamping plate fixedly connected to the lower end of the vertical guide rail.

[0013] As a further embodiment of the invention, a positioning slider is slidably connected to the vertical guide rail, the two fixed ends of the scissor lift are respectively fixedly connected to the lower end of the first slide and the lower end of the vertical guide rail, and the two sliding ends of the scissor lift are respectively fixedly connected to the moving end of the first slide and the positioning slider.

[0014] As a further embodiment of the invention, the first slide is at the same height as the vertical guide rail, and the first slide is slidably connected to the first crossbar, the second crossbar and the third crossbar via a support slide. The top and side walls of the first crossbar, the second crossbar and the third crossbar are all provided with slide grooves that cooperate with the support slide for sliding.

[0015] As a further aspect of the invention, a second slide is installed on one side of the top of the support slide, and a first connecting seat is installed on the moving end of the second slide. A second connecting seat is installed on the side of the support slide adjacent to the support slide where the second slide is located, close to the adjacent second slide. The first connecting seat corresponds one-to-one with the second slide on the adjacent support slide and is connected by a transmission inclined rod. The transmission inclined rod is hinged to the first connecting seat and the second connecting seat respectively.

[0016] As a further aspect of the invention, the transmission crossbar is connected to the support crossbar via several transmission vertical bars arranged side by side.

[0017] As a further aspect of the invention, a plurality of support holes are installed on the upper surface of the support crossbar and between it and the transmission vertical bar, and the first push rod and the third push rod are both installed on the support holes.

[0018] As a further aspect of the invention, the supporting crossbar is connected to the first crossbar via a diagonal pressure bar, and both ends of the diagonal pressure bar are elastically hinged to the supporting crossbar and the first crossbar respectively via elastic pivots.

[0019] As a further aspect of the invention, a first motor is installed at the moving end of the three-dimensional slide, and a sewing machine is installed at the lower end of the drive shaft of the first motor.

[0020] The beneficial effects of this invention are:

[0021] (1) In use, the staff holds the cut pieces to be sewn through each cut piece holder in turn. When the sewing machine is sewing other clamped and shaped cut pieces, the cut pieces that have been sewn are removed and replaced, thereby compressing the interval between sewing of each cut piece and achieving the best production efficiency. During sewing, the three-dimensional slide table and the first motor work together to keep the sewing machine in the best sewing posture and accurately sew along the set trajectory to the set position, thereby maintaining a smooth sewing trajectory. During clamping, the second motor is adjusted by the first push rod so that the cut piece holder can be used for T-shirts of different sizes. The second crossbar is rotated by the second motor, so that the sleeve edge of the cut piece held by the second crossbar is rotated and extended. The extension allows the seam track to accurately match the expanded portion of the T-shirt fabric at the armpit, enabling the sewn T-shirt sleeve to better adapt to various extension postures and spatial angles of the human upper limb. This allows the sportswear processed by this device to more efficiently support the wearer's movements and enables the device to more accurately and customarily sew the edges of T-shirts according to different wearers' body data. Through the extension of each push rod and the rotation of the motor, the first, second, and third crossbars expand the fabric in all directions to prevent wrinkles. This allows for efficient seaming while adapting to fabrics of different sizes, automatically and customarily sewing sportswear.

[0022] (2) During operation, the clamping positions of the first horizontal bar, the second horizontal bar and the third horizontal bar are coordinated, and the extension of the clamping mechanisms arranged in an array further fits the edges of different sizes of cut pieces, preventing wrinkles caused by the elasticity of the cut pieces, and further adapting to the edges of cut pieces with different arc shapes, ensuring the consistency and customization of the sewing effect. The first slide table at different positions accurately slides a certain distance on one side of the sliding end of the scissor frame, so that the scissor frame can be accurately extended to a certain length and can be contracted in a narrow space, thereby maintaining a large range of cut piece size adaptation. It can be continuously and quickly produced according to common sizes, and can also be customized for different sizes.

[0023] (3) During operation, the position of each push rod is determined by the support plate, thereby flexibly adjusting the position of the first crossbar, the second crossbar and the third crossbar, and then adjusting the position of each set of clamping mechanisms according to the size of different cut pieces, so as to achieve the best clamping effect on the edges of different cut pieces and further expand the range of adaptation. When the cut piece clamping plate moves to the set position of the cut piece edge, each second slide is adjusted one by one from the middle of the cut piece to the distance away. The inclination angle of the transmission diagonal rod is adjusted by the second slide, thereby adjusting the distance between adjacent clamping mechanisms. The clamping point of the adjacent clamping mechanism is used as the endpoint to stretch the adjacent cut pieces, which is coordinated with the clamping and stretching direction of the cut piece clamping plate to form an orthogonal stretching effect, further preventing wrinkles, and allowing more types of cut pieces to fully expand and form smooth edges. Attached Figure Description

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a top view of the overall structure of the present invention;

[0026] Figure 2 This is a partial top view of the cut piece holder of the present invention;

[0027] Figure 3 This is a side view of the overall structure of the cut piece holder of the present invention;

[0028] Figure 4 This is a top view of the overall structure of the clamping mechanism of the present invention;

[0029] Figure 5 This is a side view of the overall structure of the clamping mechanism of the present invention;

[0030] In the diagram: 101, three-dimensional slide table; 102, first motor; 103, sewing machine; 104, fabric piece holder; 201, synchronous slide table; 202, transmission crossbar; 203, support crossbar; 204, transmission vertical bar; 205, support perforated plate; 206, first crossbar; 207, diagonal pressure bar; 208, elastic rotating shaft; 209, first push rod; 210, second motor; 211, second push rod; 212, first vertical bar; 213. 214. Second horizontal bar; 215. Third push rod; 216. Third motor; 217. Fourth push rod; 218. Second vertical bar; 219. Third horizontal bar; 210. Edge clamping mechanism; 301. First slide table; 302. Scissor lift; 303. Vertical guide rail; 304. Positioning slider; 305. Cutting piece clamping plate; 306. Support slide; 307. Second slide table; 308. First connecting seat; 309. Second connecting seat; 310. Transmission diagonal bar. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0032] Please see Figure 1-5 As shown: A sewing edge positioning device for custom sportswear includes a three-dimensional slide table 101. A first motor 102 is installed at the moving end of the three-dimensional slide table 101. A sewing machine 103 is installed at the lower end of the drive shaft of the first motor 102. Several equally spaced and uniformly distributed cut piece holders 104 are provided below the center of the three-dimensional slide table 101. In this embodiment, two cut piece holders 104 are used alternately. Each cut piece holder 104 includes a synchronous slide table 201. Both moving ends of the synchronous slide table 201 are equipped with clamping components. The two clamping components are symmetrical to each other. Each clamping component includes a transmission crossbar 202. A support crossbar 203 is provided below the transmission crossbar 202 located on the upper side. First crossbars 206 are provided on both sides of the support crossbar 203. First push rods 209 and third push rods 214 are provided on both sides of the end of the support crossbar 203 away from the synchronous slide table 201. The telescopic end of the first push rod 209 is equipped with a second motor 210. The lower end of the drive shaft of the second motor 210 is horizontally equipped with a second push rod 211. The telescopic end of the second push rod 211 is provided with a second crossbar 213. The second push rod 211 is connected to the second crossbar 213 through a first vertical rod 212. The telescopic end of the third push rod 214 is equipped with a third motor 215. The upper end of the drive shaft of the third motor 215 is horizontally equipped with a fourth push rod 216. The telescopic end of the fourth push rod 216 is provided with a third crossbar 218. The fourth push rod 216 is connected to the third crossbar 218 through a second vertical rod 217. Several clamping mechanisms 219 arranged side by side and abutting each other are installed on the first crossbar 206, the second crossbar 213 and the third crossbar 218. The first motor 102, the second motor 210 and the third motor 215 are all stepper motors.

[0033] This embodiment takes a sports T-shirt as an example. During operation, the T-shirt requiring positioning and sewing is sequentially and alternately clamped by two or more fabric clamps 104 via the first vertical bar 212 and the second vertical bar 217. The movement trajectory of the sewing machine 103 is controlled by the three-dimensional slide table 101. The rotation angle of the sewing machine 103 at each sewing position is adjusted by the first motor 102. While the sewing machine 103 circles the T-shirt, it sews the sewing at the set position as needed along the sewing trajectory. During clamping, the position of the second motor 210 is adjusted by the first push rod 209 so that the position of the second motor 210 is directly above the bend on the fabric piece. In this embodiment, the bend is located at the armpit. The first horizontal bar 206 on each side clamps the edge of the chest and abdomen fabric piece of the T-shirt, and the second horizontal bar on each side... 213 clamps the edge of the sleeve piece of the T-shirt, and the third horizontal bar 218 on each side clamps the edge of the shoulder piece of the T-shirt. When sewing the side seams, the second motor 210 rotates the second push rod 211, which drives the second horizontal bar 213 to rotate synchronously, fully expanding the closed part at the armpit of the T-shirt. After the edge of the armpit of the T-shirt is fully expanded, it coincides with the edge of the sleeve, chest side and waist to form a smooth curve, so that the sewing machine 103 can accurately and smoothly sew the edge. When sewing the edge, the third motor 215 rotates and closes the third horizontal bar 218 to prevent interference. When sewing the shoulder line, the extension and retraction of the third push rod 214 and the fourth push rod 216 can adapt to different shoulder widths and shoulder shapes. The rotation of the second horizontal bar 213 makes the shoulder of the piece of fabric fully expanded, which facilitates the formation of a smooth sewing track.

[0034] The clamping mechanism 219 includes a first slide 301, a vertical guide rail 303 on one side of the first slide 301, a scissor lift 302 between the first slide 301 and the vertical guide rail 303, a positioning slider 304 slidably connected on the vertical guide rail 303, the fixed ends on both sides of the scissor lift 302 are fixedly connected to the lower end of the first slide 301 and the lower end of the vertical guide rail 303 respectively, the sliding ends on both sides of the scissor lift 302 are fixedly connected to the moving end of the first slide 301 and the positioning slider 304 respectively, and a cutting piece clamping plate 305 is fixedly connected to the lower end of the vertical guide rail 303. The first slide 301 and the vertical guide rail 303 are at the same height.

[0035] During operation, the first slide 301 is at the same height as the vertical guide rail 303, so that the lower surface of the cut piece clamping plate 305 is in contact with the cut piece. The lower ends of the first slide 301 and the scissor frame 302 maintain a gap with the cut piece to avoid scratching the surface of the cut piece. At the same time, the clamping mechanism 219 arranged in an array can adapt to the different widths of the cut piece at different positions on both sides of the chest and abdomen, as well as the different widths of the sleeves and shoulders. Each first slide 301 is adjusted relative to the corresponding edge position, and the scissor frame 302 extends to different lengths accordingly, so that each cut piece clamping plate 305 fits tightly against the edge of the cut piece. Thus, this device can fully adapt to customized cut pieces made for different body data.

[0036] The transmission crossbar 202 is connected to the support crossbar 203 through several transmission vertical bars 204 arranged side by side. Several support hole plates 205 are installed between the upper surface of the support crossbar 203 and the transmission vertical bars 204. The first push rod 209 and the third push rod 214 are both installed on the support hole plates 205.

[0037] The support crossbar 203 is connected to the first crossbar 206 via the inclined pressure bar 207. Both ends of the inclined pressure bar 207 are elastically hinged to the support crossbar 203 and the first crossbar 206 respectively via the elastic pivot 208.

[0038] During operation, the position of each push rod is determined by the support plate 205, thereby flexibly adjusting the positions of the first crossbar 206, the second crossbar 213 and the third crossbar 218, and then adjusting the position of each set of clamping mechanisms 219 according to the size of different cut pieces, so as to achieve the best clamping effect on the edges of different cut pieces and further expand the adaptability range.

[0039] The first slide 301 is slidably connected to the first crossbar 206, the second crossbar 213 and the third crossbar 218 via the support slide 306, and the top and side walls of the first crossbar 206, the second crossbar 213 and the third crossbar 218 are all provided with slide grooves that fit and slide with the support slide 306.

[0040] A second slide 307 is installed on one side of the top of the support slide 306. A first connecting seat 308 is installed on the moving end of the second slide 307. A second connecting seat 309 is installed on the side of the support slide 306 adjacent to the support slide 306 where the second slide 307 is located. The first connecting seat 308 corresponds one-to-one with the second slide 307 on the adjacent support slide 306 and is connected by a transmission rod 310. The transmission rod 310 is hinged to the first connecting seat 308 and the second connecting seat 309 respectively. The support slide 306 at the first position in the row is only equipped with the second slide 307, while the support slide 306 at the last position in the row is only equipped with the second connecting seat 309.

[0041] When the cutting piece clamping plate 305 moves to the set position of the edge of the cutting piece, each of the second slides 307 is adjusted one by one from near the center of the cutting piece to away from it. The inclination angle of the transmission diagonal rod 310 is adjusted by the second slides 307, thereby adjusting the spacing of the adjacent clamping mechanisms 219. The clamping points of the adjacent clamping mechanisms 219 are used as endpoints to stretch the adjacent cutting pieces. This is coordinated with the clamping and stretching direction of the cutting piece clamping plate 305 to form an orthogonal stretching effect, further preventing wrinkles and allowing more types of cutting pieces to fully expand and form smooth edges.

[0042] In use, the operator sequentially clamps the cut pieces to be sewn using each cut piece holder 104. While the sewing machine 103 is sewing other clamped and shaped cut pieces, the sewn pieces are removed and replaced, thus reducing the interval between sewing edges on each piece and achieving optimal production efficiency. During sewing, the three-dimensional slide table 101 and the first motor 102 work together to maintain the sewing machine 103 in the optimal sewing posture and accurately sew along a set trajectory to the set position, thus maintaining a smooth sewing trajectory. During clamping, the first push rod 209 adjusts the second motor 210, allowing the cut piece holder 104 to accommodate T-shirts of different sizes. The second motor 210 rotates the second crossbar 213, causing the second crossbar 213 to... The sleeve edge of the clamped piece is rotated and extended, so that the seam track can accurately match the expanded part of the T-shirt piece at the armpit. This allows the sewn T-shirt sleeve to more fully adapt to the various extension postures and spatial angles of the human upper limb, thus enabling the sportswear processed by this device to more efficiently cooperate with the wearer during exercise. The device can also more accurately and customarily sew the T-shirt edges according to the body data of different wearers. Through the extension of each push rod and the rotation of the motor, the first horizontal bar 206, the second horizontal bar 213 and the third horizontal bar 218 expand the piece in all directions to prevent wrinkles. At the same time, it can efficiently sew the edges and adapt to different sizes of pieces, automatically and customarily sewing sportswear.

[0043] During operation, the clamping positions of the first horizontal bar 206, the second horizontal bar 213, and the third horizontal bar 218 are coordinated, and the extension of the various clamping mechanisms 219 arranged in an array further conforms to the edges of different sized pieces, preventing wrinkles caused by the elasticity of the pieces, and further adapting to the edges of different curved pieces, ensuring the consistency and customization of the sewing effect. The first slide table 301 at different positions accurately slides a certain distance on one side of the sliding end of the scissor frame 302, so that the scissor frame 302 can be accurately extended to a certain length and retracted in a narrow space, thereby maintaining a large range of piece size adaptation. It can be used for continuous and rapid production according to common sizes, as well as for customized production for different sizes.

[0044] During operation, the position of each push rod is determined by the support plate 205, thereby flexibly adjusting the positions of the first crossbar 206, the second crossbar 213, and the third crossbar 218. This allows for targeted adjustment of the positions of each set of clamping mechanisms 219 according to the size of different cut pieces, achieving optimal clamping effect on the edges of different cut pieces and further expanding the adaptability range. When the cut piece clamping plate 305 moves to the set position of the cut piece edge, each second slide 307 is adjusted sequentially from near the center of the cut piece to away from it. The inclination angle of the transmission inclined rod 310 is adjusted by the second slide 307, thereby adjusting the spacing between adjacent clamping mechanisms 219. The clamping points of adjacent clamping mechanisms 219 are used as endpoints to stretch adjacent cut pieces, which, in conjunction with the clamping and stretching direction of the cut piece clamping plate 305, forms an orthogonal stretching effect, further preventing wrinkles and allowing more types of cut pieces to fully expand and form smooth edges.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A seam positioning device for custom sportswear, characterized in that, The device includes a three-dimensional slide (101), and several equally spaced and uniformly distributed piece holders (104) are provided at the lower center of the three-dimensional slide (101). Each piece holder (104) includes a synchronous slide (201). Both moving ends of the synchronous slide (201) are equipped with clamping components. The two clamping components are symmetrical to each other. Each clamping component includes a transmission crossbar (202). A support crossbar (203) is provided below the transmission crossbar (202) located on the upper side. First crossbars (206) are provided on both sides of the support crossbar (203). First push rods (209) and third push rods (214) are provided on both sides of the end of the support crossbar (203) away from the synchronous slide (201). The telescopic end of the first push rod (209) is equipped with a second motor (210), the lower end of the drive shaft of the second motor (210) is horizontally equipped with a second push rod (211), the telescopic end of the second push rod (211) is provided with a second crossbar (213), the telescopic end of the third push rod (214) is equipped with a third motor (215), the upper end of the drive shaft of the third motor (215) is horizontally equipped with a fourth push rod (216), the telescopic end of the fourth push rod (216) is provided with a third crossbar (218), and several clamping mechanisms (219) arranged side by side and abutting each other are installed on the first crossbar (206), the second crossbar (213) and the third crossbar (218). The moving end of the three-dimensional slide (101) is equipped with a first motor (102), and the lower end of the drive shaft of the first motor (102) is equipped with a sewing machine (103). The movement trajectory of the sewing machine (103) is controlled by the three-dimensional slide table (101), and the rotation angle of the sewing machine (103) at each sewing position is adjusted by the first motor (102). The clamping mechanism (219) includes a first slide (301), a vertical guide rail (303) is provided on one side of the first slide (301), a scissor bracket (302) is provided between the first slide (301) and the vertical guide rail (303), and a cutting piece clamping plate (305) is fixedly connected to the lower end of the vertical guide rail (303). A positioning slider (304) is slidably connected to the vertical guide rail (303). The two fixed ends of the scissor lift (302) are respectively fixedly connected to the lower end of the first slide (301) and the lower end of the vertical guide rail (303). The two sliding ends of the scissor lift (302) are respectively fixedly connected to the moving end of the first slide (301) and the positioning slider (304). The first slide (301) is at the same height as the vertical guide rail (303). The first slide (301) is slidably connected to the first crossbar (206), the second crossbar (213) and the third crossbar (218) through the support slide (306). The top and side walls of the first crossbar (206), the second crossbar (213) and the third crossbar (218) are all provided with grooves for fitting and sliding with the support slide (306). A second slide (307) is installed on one side of the top of the support slide (306). A first connecting seat (308) is installed on the moving end of the second slide (307). A second connecting seat (309) is installed on the side of the support slide (306) adjacent to the support slide (306) where the second slide (307) is located. The first connecting seat (308) corresponds one-to-one with the second slide (307) on the adjacent support slide (306) and is connected by a transmission rod (310). The transmission rod (310) is hinged to the first connecting seat (308) and the second connecting seat (309) respectively.

2. The seam positioning device for custom sportswear according to claim 1, characterized in that, The second push rod (211) is connected to the second horizontal rod (213) through the first vertical rod (212), and the fourth push rod (216) is connected to the third horizontal rod (218) through the second vertical rod (217). The first motor (102), the second motor (210) and the third motor (215) are all stepper motors.

3. The seam positioning device for custom sportswear according to claim 1, characterized in that, The transmission crossbar (202) is connected to the support crossbar (203) through several transmission vertical bars (204) arranged side by side.

4. The seam positioning device for custom sportswear according to claim 1, characterized in that, A plurality of support holes (205) are installed on the upper surface of the support crossbar (203) and between it and the transmission vertical bar (204), and the first push rod (209) and the third push rod (214) are both installed on the support holes (205).

5. The seam positioning device for custom sportswear according to claim 1, characterized in that, The support crossbar (203) is connected to the first crossbar (206) via a diagonal pressure bar (207). Both ends of the diagonal pressure bar (207) are elastically hinged to the support crossbar (203) and the first crossbar (206) respectively via elastic pivots (208).

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