Automatic hemming equipment for edges of short skirts
By designing an automatic hemming device with sewing, adjusting, and clamping mechanisms, the problem of automating the processing of non-straight short skirt hems was solved, achieving highly efficient automated sewing and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI BAISHIJI CLOTHING CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies make it difficult to automate the hemming process of non-straight short skirts, resulting in high manual operation costs and low efficiency.
Design an automatic hemming device that includes a sewing device, an adjusting device, and a clamping device. The sewing device sews the edge of the fabric, the adjusting device moves the fabric back and forth, and the clamping device clamps and fixes the outer part of the folded edge of the fabric to ensure the folded edge effect.
It enables automated sewing of non-straight-line short skirt hems, improving the equipment's practicality and automation level, and reducing manual operation costs.
Smart Images

Figure CN224227396U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of clothing processing, and in particular to an automatic hemming device for short skirts. Background Technology
[0002] In the production of short skirts, the hem needs to be folded and sewn to maintain its appearance. However, due to the design of the hem, the edge of the fabric is not straight, making it difficult to fold and sew by machine. Therefore, it is usually done manually, which is more expensive and less efficient than machine production.
[0003] The existing Chinese utility model patent with application number CN202020752783.X relates to a hemming device for sewing the inner placket of clothing, including an operating table, a sewing machine, a hemming device, a liquid chamber, a liquid inlet, and a heating chamber, which can provide a good hemming effect and can be ironed and shaped.
[0004] However, the aforementioned device is difficult to use for hemming non-straight skirt edges in actual use. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an automatic hemming device for short skirts that uses a sewing device to sew the edge of the fabric, uses an adjusting device to move the fabric back and forth to cooperate with the sewing device to sew the curved edge of the fabric, and uses a clamping device to clamp and fix the outer part of the edge of the fabric to maintain the edge folding effect, thereby improving the practicality of the device.
[0006] This utility model discloses an automatic hemming device for short skirts; it includes a sewing device, an adjusting device, and a clamping device. The adjusting device is installed on the sewing device, and the clamping device is also installed on the sewing device. The sewing device sews the folded edge of the fabric, the adjusting device moves the fabric back and forth to cooperate with the sewing device in sewing the curved edge of the fabric, and the clamping device clamps and fixes the outer part of the folded edge of the fabric to maintain the folded edge effect, thus improving the practicality of the device.
[0007] Preferably, the sewing device includes a frame, an L-shaped support, a sewing head, a raised sewing seat, an electric linear guide, and a transverse platform. An L-shaped support is mounted on the left side of the upper end face of the frame, and the sewing head is mounted on the top surface of the L-shaped support. The raised sewing seat is mounted on the left side of the upper end face of the frame and is located below the sewing head. An electric linear guide is located at the rear of the upper end face of the frame, and a transverse platform is connected to the moving end of the electric linear guide. The transverse platform supports the fabric and, in conjunction with the electric linear guide, moves the fabric laterally to complete the sewing of the fabric edges. The sewing head and the raised sewing seat sew the folded area of the fabric, improving the practicality and automation level of the device.
[0008] Preferably, the adjustment device includes a first electric cylinder, an adjustment plate, a connecting block, a limiting sleeve, and a guide rod. A set of rectangular slots is provided on the left, right, and center of the upper surface of the transverse platform. The first electric cylinder is installed in the center of the rear end face of the transverse platform. The moving end of the first electric cylinder extends through the rear end face of the transverse platform into the slot in the center of the transverse platform. The adjustment plate is located on the upper side of the transverse platform. A connecting block is provided in the center of the lower end face of the adjustment plate. The connecting block can be inserted into the rectangular slot in the center of the transverse platform and connected to the moving end of the first electric cylinder. A set of guide rods is provided in the rectangular slots on the left and right sides of the transverse platform. The lower end face of the adjusting plate is equipped with a set of limiting sleeves corresponding to the positions of the two sets of guide rods, and the two sets of guide rods can be inserted into the two sets of limiting sleeves respectively. The adjusting plate provides direct support to the fabric. By controlling the extension of the first electric cylinder, the adjusting plate moves back and forth on the transverse platform, thereby ensuring that the curved edge of the fabric remains below the sewing head during the transverse movement of the platform. The guide rods and limiting sleeves limit the movement of the adjusting plate on the transverse platform, reducing the impact of the adjusting plate's own vibration on the sewing process and improving the stability and practicality of the device.
[0009] Preferably, the device also includes a second electric cylinder, an upper clamping template, connecting sleeves, and fastening bolts. A set of second electric cylinders is installed on each of the left and right edges of the upper end face of the adjusting plate. The upper clamping template is located above and in front of the adjusting plate. A set of connecting sleeves is provided on each of the left and right end faces of the upper clamping template. The moving ends of the two sets of second electric cylinders pass through the two sets of connecting sleeves and are connected and fixed by fastening bolts. By controlling the extension of the second electric cylinders, the position of the upper clamping template can be adjusted. The fastening bolts, connecting sleeves, and the moving ends of the second electric cylinders facilitate disassembly and replacement of the device, enabling the hemming of different styles of short skirt fabrics and improving the practicality of the device.
[0010] Preferably, the clamping device includes a lower clamping template, a third electric cylinder, strip holes, a support plate, and a limiting ring. The lower clamping template is located below the upper clamping template and its height is lower than the main body height of the adjusting plate. A set of strip holes is provided on the left and right sides of the lower clamping template, and a groove is provided on the upper edge of the strip holes. A set of third electric cylinders is installed on the left and right sides of the upper end face of the upper clamping template. The moving ends of the two sets of third electric cylinders pass through the two sets of strip holes and are connected to the support plate on the lower side of the lower clamping template. A limiting ring is installed at the lower part of the moving end of the third electric cylinder. The limiting ring is located on the upper side of the support plate and in the groove on the edge of the strip hole. By controlling the extension of the third electric cylinder, the lower clamping template is moved up and down to complete the local fixation and release of the outer side of the folded edge of the fabric curve. The support plate increases the effective support area of the lower clamping template, thereby ensuring the overall clamping effect. The strip holes facilitate the adjustment of the front and rear position of the lower clamping template, improving the practicality of the device.
[0011] Preferably, the device also includes a fourth electric cylinder, a push-pull frame, connecting rods, and connecting grooves. The fourth electric cylinder is mounted on the rear end face of the upper clamping template via a bracket. The moving end of the fourth electric cylinder is connected to the push-pull frame. A set of connecting rods is mounted on the left and right sides of the upper end face of the push-pull frame. A connecting groove is provided at the rear of the lower clamping template, and both sets of connecting rods pass through the connecting groove. By controlling the extension of the fourth electric cylinder, the lower clamping template is moved back and forth to cooperate with the adjusting plate to perform folding operations on the edge area of the skirt, thereby improving the practicality of the device.
[0012] Preferably, it also includes reinforcing ribs. The upper part of the L-shaped bracket is provided with reinforcing ribs. A set of rectangular holes is provided on the left and right sides of the curved edges of the adjusting plate, the lower clamping template, and the upper clamping template. The rectangular holes on the left side of the adjusting plate, the lower clamping template, and the upper clamping template are located on the lower side of the sewing head. The stability of the equipment is increased by reinforcing ribs. By providing rectangular holes on the left and right sides of the adjusting plate, the lower clamping template, and the upper clamping template and placing them on the lower side of the sewing head, it is convenient for the clamping device and the adjusting device to operate continuously in the sewing device without repeatedly adjusting the needle and thread, thus improving the practicality of the device.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the sewing device performs sewing processing on the edge fold of the fabric, the adjusting device drives the fabric to move back and forth, thereby cooperating with the sewing device to perform sewing processing on the curved edge of the fabric, and the clamping device clamps and fixes the outer part of the edge fold of the fabric to maintain the edge folding effect of the fabric, thus improving the practicality of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the first exploded structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the second explosive structure of this utility model;
[0018] The following are labels in the attached diagram: 1. Frame; 2. L-shaped bracket; 3. Sewing head; 4. Elevated sewing seat; 5. Electric linear guide; 6. Transverse platform; 7. First electric cylinder; 8. Adjusting plate; 9. Connecting block; 10. Limiting sleeve; 11. Smooth rod; 12. Second electric cylinder; 13. Upper clamping template; 14. Connecting sleeve; 15. Fastening bolt; 16. Lower clamping template; 17. Third electric cylinder; 18. Strip hole; 19. Support plate; 20. Limiting ring; 21. Fourth electric cylinder; 22. Push-pull frame; 23. Connecting rod; 24. Connecting groove; 25. Reinforcing rib. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0020] Example 1
[0021] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the adjusting device is installed on the sewing device, and the clamping device is installed on the sewing device;
[0022] First, place the fabric on the adjusting plate 8, so that the curved edge of the fabric is on the curved edge of the adjusting plate 8, and extend outward to the part that needs to be folded. Then, control the third electric cylinder 17 to retract, driving the lower clamping template 16 to rise to be close to the lower end face of the adjusting plate 8, and adjust the curved edge of the lower clamping template 16 to be in front of the curved edge of the upper clamping template 13. Then, control the second electric cylinder 12 to retract, so that the curved edge of the upper clamping template 13 is close to the curved edge of the adjusting plate 8 with a small overlap. Then, control the fourth electric cylinder 21 to extend, pushing the extended part of the fabric backward, while controlling the third electric cylinder 17 to slowly extend, so that the extended part of the fabric bends along the curved edge of the adjusting plate 8. Then, control the second electric cylinder 12 to slowly extend, while controlling the third electric cylinder 17 to slowly retract, so that the lower clamping template 16 cooperates with the upper clamping template 13 to clamp and fix the bent area of the fabric. Then, control the electric linear guide rail 5 to drive the transverse platform 6 to move laterally, and then cooperate with the sewing head 3 to complete the sewing operation.
[0023] The sewing device includes a frame 1, an L-shaped bracket 2, a sewing head 3, a raised sewing seat 4, an electric linear guide rail 5, and a transverse platform 6. The L-shaped bracket 2 is installed on the left side of the upper end face of the frame 1, the sewing head 3 is installed on the top surface of the L-shaped bracket 2, the raised sewing seat 4 is installed on the left side of the upper end face of the frame 1, the raised sewing seat 4 is located below the sewing head 3, the electric linear guide rail 5 is provided at the rear of the upper end face of the frame 1, and the transverse platform 6 is connected to the moving end of the electric linear guide rail 5.
[0024] The adjustment device includes a first electric cylinder 7, an adjustment plate 8, a connecting block 9, a limiting sleeve 10, and a guide rod 11. A set of rectangular slots is provided on the left, right, and middle of the upper end face of the transverse platform 6. The first electric cylinder 7 is installed in the middle of the rear end face of the transverse platform 6. The moving end of the first electric cylinder 7 extends through the rear end face of the transverse platform 6 to the slot in the middle of the transverse platform 6. The adjustment plate 8 is located on the upper side of the transverse platform 6. A connecting block 9 is provided in the middle of the lower end face of the adjustment plate 8. The connecting block 9 can be inserted into the rectangular slot in the middle of the upper transverse platform 6 and connected to the moving end of the first electric cylinder 7. A set of guide rods 11 is provided in the rectangular slots on the left and right sides of the transverse platform 6. A set of limiting sleeves 10 is provided on the lower end face of the adjustment plate 8 corresponding to the positions of the two sets of guide rods 11. The two sets of guide rods 11 can be inserted into the two sets of limiting sleeves 10 respectively.
[0025] It also includes a second electric cylinder 12, an upper clamping template 13, a connecting sleeve 14, and fastening bolts 15. A set of second electric cylinders 12 is installed on the left and right edges of the upper end face of the adjusting plate 8. The upper clamping template 13 is located on the upper side and the front side of the adjusting plate 8. A set of connecting sleeves 14 is provided on the left and right end faces of the upper clamping template 13. The moving ends of the two sets of second electric cylinders 12 pass through the two sets of connecting sleeves 14 and are connected and fixed by fastening bolts 15.
[0026] The clamping device includes a lower clamping template 16, a third electric cylinder 17, a strip hole 18, a support plate 19, and a limiting ring 20. The lower clamping template 16 is located below the upper clamping template 13 and its height is lower than the main body height of the adjusting plate 8. A set of strip holes 18 are provided on the left and right sides of the lower clamping template 16, and a groove is provided on the upper edge of the strip hole 18. A set of third electric cylinders 17 are installed on the left and right sides of the upper end face of the upper clamping template 13. The moving ends of the two sets of third electric cylinders 17 pass through the two sets of strip holes 18 and are connected to the support plate 19 on the lower side of the lower clamping template 16. A limiting ring 20 is installed at the lower part of the moving end of the third electric cylinder 17. The limiting ring 20 is located on the upper side of the support plate 19 and in the groove on the edge of the strip hole 18.
[0027] It also includes a fourth electric cylinder 21, a push-pull frame 22, a connecting rod 23 and a connecting groove 24. The fourth electric cylinder 21 is mounted on the rear end face of the upper clamping template 13 via a bracket. The moving end of the fourth electric cylinder 21 is connected to the push-pull frame 22. A set of connecting rods 23 are mounted on the left and right sides of the upper end face of the push-pull frame 22 respectively. A connecting groove 24 is provided at the rear of the lower clamping template 16. Both sets of connecting rods 23 pass through the connecting groove 24.
[0028] It also includes a reinforcing rib 25. The upper part of the L-shaped bracket 2 is provided with a reinforcing rib 25. The left and right sides of the curved edges of the adjusting plate 8, the lower clamping template 16 and the upper clamping template 13 are respectively provided with a set of rectangular holes. The rectangular holes on the left side of the adjusting plate 8, the lower clamping template 16 and the upper clamping template 13 are located on the lower side of the sewing head 3. The sewing device is used to sew the edge of the fabric. The adjusting device drives the fabric to move back and forth, thereby cooperating with the sewing device to sew the curved edge of the fabric. The clamping device clamps and fixes the outer part of the edge of the fabric to maintain the edge folding effect of the fabric, thus improving the practicality of the device.
[0029] like Figures 1 to 4 As shown, this utility model discloses an automatic hemming device for short skirts. During operation, the fabric is first placed on the adjusting plate 8, with the curved edge of the fabric positioned on the curved edge of the adjusting plate 8, extending outwards to the portion requiring hemming. Then, the third electric cylinder 17 is controlled to retract, causing the lower clamping template 16 to rise close to the lower end face of the adjusting plate 8, and the curved edge of the lower clamping template 16 is adjusted to be in front of the curved edge of the upper clamping template 13. Next, the second electric cylinder 12 is controlled to retract, bringing the curved edge of the upper clamping template 13 close to the curve of the adjusting plate 8. With a small overlap at the top and bottom edges, the fourth electric cylinder 21 is extended to push the extended portion of the fabric backward, while the third electric cylinder 17 is slowly extended to bend the extended portion of the fabric along the curved edge of the adjusting plate 8. Then, the second electric cylinder 12 is slowly extended while the third electric cylinder 17 is slowly retracted, so that the lower clamping template 16 cooperates with the upper clamping template 13 to clamp and fix the bent area of the fabric. Then, the electric linear guide rail 5 is controlled to drive the transverse platform 6 to move laterally, thereby cooperating with the sewing head 3 to complete the sewing operation.
[0030] The electric linear guide 5, sewing head 3, first electric cylinder 7, fourth electric cylinder 21 and third electric cylinder 17 of the automatic hemming device for short skirts of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An automatic hemming device for short skirts; characterized in that, The device includes a sewing device, an adjustment device, and a clamping device. The adjustment device is installed on the sewing device, and the clamping device is installed on the sewing device. The sewing device includes a frame (1), an L-shaped bracket (2), a sewing head (3), a raised sewing seat (4), an electric linear guide (5), and a transverse platform (6). The L-shaped bracket (2) is installed on the left side of the upper end face of the frame (1), and the sewing head (3) is installed on the top surface of the L-shaped bracket (2). The raised sewing seat (4) is installed on the left side of the upper end face of the frame (1). The raised sewing seat (4) is located below the sewing head (3). The electric linear guide (5) is provided at the rear of the upper end face of the frame (1). The transverse platform (6) is connected to the moving end of the electric linear guide (5). The adjustment device includes a first electric cylinder (7), an adjustment plate (8), a connecting block (9), a limit sleeve (10), and a guide rod (11). A set of rectangular slots is provided on the left, right and middle of the upper end face of the transverse platform (6). A first electric cylinder (7) is installed in the middle of the rear end face of the transverse platform (6). The moving end of the first electric cylinder (7) extends through the rear end face of the transverse platform (6) to the slot in the middle of the transverse platform (6). An adjustment plate (8) is located on the upper side of the transverse platform (6). A connecting block (9) is provided in the middle of the lower end face of the adjustment plate (8). The connecting block (9) can be put into the rectangular slot in the middle of the upper part of the transverse platform (6) and connected to the moving end of the first electric cylinder (7). A set of light rods (11) is provided in the rectangular slots on the left and right sides of the transverse platform (6). A set of limiting sleeves (10) is provided on the lower end face of the adjustment plate (8) corresponding to the positions of the two sets of light rods (11). The two sets of light rods (11) can be inserted into the two sets of limiting sleeves (10) respectively.
2. The automatic hemming device for short skirts as described in claim 1, characterized in that, It also includes a second electric cylinder (12), an upper clamping template (13), a connecting sleeve (14) and a fastening bolt (15). A set of second electric cylinders (12) are installed on the left and right edges of the upper end face of the adjusting plate (8). The upper clamping template (13) is located on the upper side of the adjusting plate (8) and in front of the adjusting plate (8). A set of connecting sleeves (14) is provided on the left and right end faces of the upper clamping template (13). The moving ends of the two sets of second electric cylinders (12) pass through the two sets of connecting sleeves (14) and are connected and fixed by fastening bolts (15).
3. The automatic hemming device for short skirts as described in claim 2, characterized in that, The clamping device includes a lower clamping template (16), a third electric cylinder (17), a strip hole (18), a support plate (19), and a limiting ring (20). The lower clamping template (16) is located below the upper clamping template (13) and its height is lower than the main body height of the adjusting plate (8). A set of strip holes (18) are provided on the left and right sides of the lower clamping template (16). The upper edge of the strip hole (18) is provided with a groove. A set of third electric cylinders (17) are installed on the left and right sides of the upper end face of the upper clamping template (13). The moving ends of the two sets of third electric cylinders (17) pass through the two sets of strip holes (18) and are connected to the support plate (19) on the lower side of the lower clamping template (16). A limiting ring (20) is installed at the lower part of the moving end of the third electric cylinder (17). The limiting ring (20) is located on the upper side of the support plate (19) and in the groove at the edge of the strip hole (18).
4. The automatic hemming device for short skirts as described in claim 3, characterized in that, It also includes a fourth electric cylinder (21), a push-pull frame (22), a connecting rod (23) and a connecting groove (24). The fourth electric cylinder (21) is mounted on the rear end face of the upper clamping template (13) via a bracket. The moving end of the fourth electric cylinder (21) is connected to the push-pull frame (22). A set of connecting rods (23) is installed on the left and right sides of the upper end face of the push-pull frame (22). A connecting groove (24) is provided at the rear of the lower clamping template (16). Both sets of connecting rods (23) pass through the connecting groove (24).
5. The automatic hemming device for short skirts as described in claim 4, characterized in that, It also includes a reinforcing rib (25), the upper part of the L-shaped bracket (2) is provided with a reinforcing rib (25), and the curved edges of the adjusting plate (8), the lower clamping template (16) and the upper clamping template (13) are respectively provided with a set of rectangular holes on the left and right sides, and the rectangular holes on the left side of the adjusting plate (8), the lower clamping template (16) and the upper clamping template (13) are located on the lower side of the sewing head (3).