Bone seam reversing mechanism

By using an elastic boning plate and guide plate structure in the hem sewing device, the problem of unstable fabric boning was solved, realizing a highly efficient and automated sewing process and reducing the scrap rate.

CN224173000UActive Publication Date: 2026-04-28NINGBO SUPREME ELECTRONIC MASCH INC
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SUPREME ELECTRONIC MASCH INC
Filing Date
2025-04-01
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing hem boning devices have difficulty consistently blowing the fabric in the correct direction when expelling compressed air, resulting in a high scrap rate.

Method used

The system employs an elastic reinforcing plate, which is driven by a reinforcing cylinder to slide on a guide plate. This, combined with the inclined surface of the material support plate, enables automatic revetting of the material seams.

Benefits of technology

It improves the stability and automation efficiency of sewing and reduces the scrap rate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224173000U_ABST
    Figure CN224173000U_ABST
Patent Text Reader

Abstract

The utility model discloses a bone seam chamfering mechanism which comprises an elastic bone chamfering sheet capable of moving up and down, the elastic bone chamfering sheet is connected with a bone chamfering air cylinder, the bone chamfering air cylinder is installed on a bone chamfering air cylinder installation frame, and the bone chamfering air cylinder installation frame is connected with a first lifting seat. A first guide plate and a second guide plate are arranged at the front end of the first lifting seat, a first groove allowing the elastic inverted bone piece to penetrate through is formed in the inner side of the first guide plate, and arc-shaped curved surfaces are arranged at the lower end of the first guide plate and the lower end of the second guide plate. The bone chamfering air cylinder drives the elastic bone chamfering sheet to penetrate through the first guide plate and the second guide plate along the first groove, then the front end of the elastic bone chamfering sheet folds bone seams of materials to the same direction, and the bone chamfering device has the advantages of being stable in work and high in automation efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of sewing technology, specifically a reverse stitching mechanism. Background Technology

[0002] A boning device for sewing hems, patent number 202020024245.9, includes a mounting plate and a boning air pipe. A stepper motor is fixed on the mounting plate, and a driven pulley is pivotally mounted thereon. A drive pulley is fixed to the motor shaft of the stepper motor. An annular synchronous belt is wound around the drive pulley and the driven pulley. The boning air pipe is fixed on an air pipe fixing plate, and the air pipe fixing plate is directly or indirectly connected to the annular synchronous belt between the drive pulley and the driven pulley.

[0003] The patent has certain defects. For example, it uses compressed air blown out through an air tube to make the seam bob tilt in the appropriate direction, but this technology has drawbacks such as not being able to stably tilt the seam bob or blowing the fabric out of place, resulting in a high rate of defective products. Summary of the Invention

[0004] This utility model addresses the aforementioned technical problems by providing a reverse bone joint mechanism, which achieves automatic reverse bone joint operation at the bone joint of the material by moving the elastic reverse bone piece (18), thereby improving work efficiency and quality.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a reverse bone joint mechanism, including an elastic reverse bone piece that can move up and down, characterized in that: the elastic reverse bone piece is connected to a reverse bone cylinder, the reverse bone cylinder is mounted on a reverse bone cylinder mounting bracket, and the reverse bone cylinder mounting bracket is connected to a first lifting seat; the front end of the first lifting seat is provided with a first guide plate and a second guide plate, the inner side of the first guide plate is provided with a first groove for the elastic reverse bone piece to pass through, and the lower ends of the first guide plate and the second guide plate have arc-shaped curved surfaces.

[0006] To optimize the above technical solution, the present invention also includes the following improved technical solutions.

[0007] The aforementioned inverted bone cylinder mounting bracket is connected to the first lifting seat via a feeding motor mounting plate; an air blowing pipe is provided on one side of the feeding motor mounting plate.

[0008] The first lifting seat is slidably mounted on the first mounting base via the first slide rail, and a material support plate is connected to the front end of the first mounting base.

[0009] The output end of the aforementioned material support plate has an extended inclined surface, which corresponds vertically to the position of the elastic reinforcing plate, and the elastic reinforcing plate can cooperate with the inclined surface to form a reinforcing plate.

[0010] The first mounting base plate is provided with a vertically arranged first lifting cylinder, and the drive rod of the first lifting cylinder is connected to the first lifting seat.

[0011] Compared with the prior art, the reverse bone joint mechanism of this utility model has the advantages of stable operation and high automation efficiency. The reverse bone cylinder drives the elastic reverse bone piece to pass through the first guide plate and the second guide plate along the first groove, so that the front end of the elastic reverse bone piece will fold the bone joint of the material in the same direction. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0013] Figure 2 This is a three-dimensional structural schematic diagram from another angle of this embodiment.

[0014] Figure 3 yes Figure 1 The front view.

[0015] Figure 4 This is a schematic diagram of the guide wheel.

[0016] Figure 5 This is a schematic diagram of the main shaft. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0018] Figures 1 to 5 The diagram shown is a structural schematic of this utility model.

[0019] The attached figures are labeled as follows: 1. Feeding roller; 1a. Mounting groove; 2. Correcting gear; 3. Main shaft; 4. Threaded rod; 4a. Thread; 5. Correcting motor; 6. Correcting motor mounting plate; 7. First lifting seat; 8. Feeding motor; 9. Feeding motor mounting plate; 10. First drive wheel; 11. First synchronous belt; 12. First bearing; 13. First slide rail; 14. First mounting base plate; 15. First lifting cylinder; 16. Adjustable screw; 17. Material support plate; 17a. Arc groove; 17b. Inclined surface; 18. Elastic reinforcing plate; 19. Reinforcing cylinder; 20. Reinforcing cylinder mounting bracket; 21. First guide plate; 21a. First groove; 22. Second guide plate; 23. Air blowing pipe.

[0020] like Figures 1 to 3 As shown, this utility model discloses a guiding and correcting mechanism, including a guiding and correcting wheel. The guiding and correcting mechanism is positioned above the worktable to correct misaligned material and move it to the sewing machine needle for sewing. It features a simple structure, convenient installation, and optimized sewing results.

[0021] like Figure 4 and Figure 5As shown, the guide wheel includes an independently rotatable feeding roller 1. One end of the feeding roller 1 has multiple mounting slots 1a evenly formed along its circumference for mounting the correction gears 2. The correction gears 2 are rotatably mounted within the mounting slots 1a. An independently rotatable main shaft 3 is located inside the feeding roller 1, and the main shaft 3 is rotatably mounted within the feeding roller 1 via a first bearing 12. One end of the main shaft 3 has a threaded rod 4, the surface of which is formed with threads 4a that mesh with the correction gears 2. The other end of the main shaft 3 is connected to a correction motor 5.

[0022] The feeding roller 1 is rotatably mounted on the first lifting seat 7. The correction motor 5 is fixedly mounted on the first lifting seat 7 via the correction motor mounting plate 6. The drive shaft of the correction motor 5 is connected to the main shaft 3. The correction motor 5 can drive the threaded rod 4 to rotate. The correction gear 2 meshes with the threaded rod 4, thereby driving the correction gear 2 to rotate back and forth. The correction gear 2 contacts the material and corrects the material's position deviation.

[0023] The feeding roller 1 is connected to a feeding motor 8 via a feeding transmission assembly. The feeding motor 8 is fixedly mounted on the first lifting seat 7 via a feeding motor mounting plate 9. The feeding transmission assembly includes a first driving wheel 10, a first driven wheel, and a first synchronous belt 11. The drive shaft of the feeding motor 8 is rotatably connected to the first driving wheel 10. The feeding roller 1 has a first driven wheel on its outer side, and the first synchronous belt 11 is sleeved on the first driving wheel 10 and the first driven wheel. The feeding motor 8 can drive the feeding roller 1 to rotate, and the correction gear 2 at the front end of the feeding roller 1 assists in moving the material to the sewing mechanism.

[0024] The first lifting seat 7 is slidably mounted on the first mounting base 14 via the first slide rail 13. The first mounting base 14 is provided with a vertically arranged first lifting cylinder 15. The drive rod of the first lifting cylinder 15 is connected to the first lifting seat 7, and the first lifting cylinder 15 can drive the first lifting seat 7 to move up and down. The upper end of the first lifting cylinder 15 is provided with an adjustable screw 16, which is located above the first mounting base 14. When the first lifting cylinder 15 drives the first lifting seat 7 to move downward, the lower end of the adjustable screw 16 moves downward and abuts against the upper end of the first mounting base 14, and the first lifting seat 7 stops moving. By adjusting the position of the adjustable screw 16 on the first lifting seat 7, the lifting height of the first lifting seat 7 can be limited.

[0025] The front end of the first mounting base plate 14 is provided with a material support plate 17. The upper surface of the material support plate 17 is formed with an arc-shaped groove 17a that conforms to the curvature of the guide wheel. The arc-shaped groove 17a corresponds vertically to the position of the guide wheel. The first lifting cylinder 15 drives the first lifting seat 7 to move downward. The guide wheel moves downward with the first lifting seat 7 and comes closer to the material on the material support plate 17. The material moves along the arc-shaped groove 17a, increasing the contact area between the material and the guide wheel, which facilitates correction and feeding.

[0026] The first lifting seat 7 is equipped with a reverse bone joint mechanism, which includes an elastic reverse bone plate 18 that can move up and down. The elastic reverse bone plate 18 is connected to a reverse bone cylinder 19. The reverse bone cylinder 19 is mounted on a reverse bone cylinder mounting bracket 20. The reverse bone cylinder mounting bracket 20 is connected to the first lifting seat 7 through a feeding motor mounting plate 9.

[0027] The front end of the first lifting seat 7 is provided with a first guide plate 21 and a second guide plate 22. The inner side of the first guide plate 21 has a first groove 21a for the elastic reinforcing piece 18 to pass through. The elastic reinforcing piece 18 can pass through the first guide plate 21 and the second guide plate 22 along the first groove 21a. The lower ends of the first guide plate 21 and the second guide plate 22 have arc-shaped curved surfaces. The output end of the material support plate 17 has an extended inclined surface 17b, which corresponds vertically to the elastic reinforcing piece 18. An air blowing pipe 23 is provided on one side of the feeding motor mounting plate 9, and the outlet end of the air blowing pipe 23 faces the inclined surface 17b.

[0028] When the material's suture passes through the inclined plane 17b, the air blowing pipe 23 blows compressed air toward the material's suture. Subsequently, the reverse suture cylinder 19 drives the elastic reverse suture plate 18 to pass through the first guide plate 21 and the second guide plate 22 along the first groove 21a. The elastic reverse suture plate 18 contacts the inclined plane 17b, and the front end of the elastic reverse suture plate 18 folds the material's suture in the same direction.

[0029] The preferred embodiment of this utility model has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of this utility model.

Claims

1. A reverse bone suture mechanism, comprising an elastic reverse bone plate (18) capable of vertical movement, characterized in that: The elastic reverse bone piece (18) is connected to a reverse bone cylinder (19), which is mounted on a reverse bone cylinder mounting bracket (20). The reverse bone cylinder mounting bracket (20) is connected to a first lifting seat (7). The front end of the first lifting seat (7) is provided with a first guide plate (21) and a second guide plate (22). The inner side of the first guide plate (21) is provided with a first groove (21a) for the elastic reverse bone piece (18) to pass through. The lower ends of the first guide plate (21) and the second guide plate (22) have arc-shaped curved surfaces.

2. The inverted suture mechanism according to claim 1, characterized in that: The inverted bone cylinder mounting bracket (20) is connected to the first lifting seat (7) via the feeding motor mounting plate (9); the feeding motor mounting plate (9) is provided with an air blowing pipe (23) on one side.

3. The inverted suture mechanism according to claim 2, characterized in that: The first lifting seat (7) is slidably mounted on the first mounting base plate (14) via the first slide rail (13), and the front end of the first mounting base plate (14) is connected to the material support plate (17).

4. The inverted suture mechanism according to claim 3, characterized in that: The output end of the material support plate (17) has an extended inclined surface (17b), the inclined surface (17b) and the elastic reinforcing plate (18) are vertically corresponding, and the elastic reinforcing plate (18) can cooperate with the inclined surface (17b) to form a reinforcing plate.

5. The inverted suture mechanism according to claim 4, characterized in that: The first mounting base plate (14) is provided with a vertically arranged first lifting cylinder (15), and the drive rod of the first lifting cylinder (15) is connected to the first lifting seat (7).

Citation Information

Patent Citations

  • Backbone device for sewing lower hem

    CN211848411U