Edge covering structure of single-needle sewing machine

Abstract

The utility model relates to the field of sewing machines, and discloses a single-needle sewing machine edge covering structure which comprises an edge covering base, a rotating groove is formed in the top of the edge covering base, a rotating bracket is fixedly installed on the inner side of the rotating groove, an edge covering table is rotatably installed on the top of the rotating bracket, and a limiting ratchet wheel is fixedly installed at the bottom of the edge covering table. And a fixed ratchet wheel is slidably installed on the inner side of the rotating bracket, the fixed ratchet wheel is matched with the limiting ratchet wheel, a reset spring is fixedly installed on the inner wall of the bottom of the rotating bracket, and the other end of the reset spring is connected with the bottom of the fixed ratchet wheel. The cloth edge covering device has the following advantages and effects that after one side of cloth is clamped, the cloth is stretched, so that the cloth is flatly laid, wrinkles are not prone to occurring, the influence on the edge covering effect is prevented, the practicability of the device is improved, the orientation of the cloth can be conveniently and rapidly adjusted through the arranged mechanism, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, and in particular to a single-needle sewing machine edging structure. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to create one or more stitches on fabric, interweaving or sewing together one or more layers of fabric. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. The stitches produced are neat, beautiful, flat, and strong. Sewing machines are fast and easy to use. They have also given rise to art forms such as hand-pressed embroidery and computerized embroidery.

[0003] A utility model patent with patent number CN220079365U has been published, disclosing a single-needle sewing machine binding structure, including a support seat on the sewing machine, and a sliding mechanism between the support seat and the sewing machine. A vertical plate is fixedly installed at the bottom of the support seat, and an adjusting plate is provided on one side of the vertical plate. A guide mechanism is provided between the adjusting plate and the vertical plate. A horizontal plate is fixedly installed on one side of the adjusting plate, and multiple moving holes are opened on the horizontal plate. T-shaped moving rods are slidably installed in the moving holes. The bottom ends of the multiple T-shaped moving rods are fixedly installed with the same pressure plate. Multiple compression springs are fixedly installed between the pressure plate and the horizontal plate. The sliding mechanism includes a guide rail and a guide hole. This utility model has the following advantages and effects: by adjusting the movement of the plate and the pressure plate, the width of the binding can be easily adjusted; the pressure plate can press the fabric binding edge to prevent the binding edge from becoming loose or misaligned; and the support seat can drive the fabric to move stably. However, there are still shortcomings: the fabric is prone to wrinkling when using the existing device, which affects the binding effect, and the orientation of the fabric is not easy to adjust, which is not conducive to binding. Utility Model Content

[0004] The purpose of this invention is to provide a single-needle sewing machine binding structure that facilitates the adjustment of fabric orientation and prevents fabric wrinkles.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a single-needle sewing machine binding structure, including a binding base, a rotating groove is provided on the top of the binding base, a rotating support is fixedly installed on the inner side of the rotating groove, and a binding platform is rotatably installed on the top of the rotating support; a limiting ratchet is fixedly installed on the bottom of the binding platform, and a fixed ratchet is slidably installed on the inner side of the rotating support, the fixed ratchet and the limiting ratchet are adapted to each other; a return spring is fixedly installed on the inner wall of the bottom of the rotating support, and the other end of the return spring is connected to the bottom of the fixed ratchet.

[0006] A further feature of this invention is that a pressure plate is fixedly installed on the top of the edge-binding platform, and a pressing metal block is slidably installed on one side of the pressure plate.

[0007] A further feature of this invention is that a knob is rotatably mounted on the top of the pressing platform, a linkage groove is provided inside the pressing platform, and a drive gear is rotatably mounted on the top inner wall of the linkage groove, the drive gear being connected to the knob.

[0008] A further feature of this invention is that two driven gears are rotatably mounted on the bottom inner wall of the linkage groove, and both driven gears mesh with the same driving gear. Two lifting ball screws are rotatably mounted on the inner side of the pressure table, and the two lifting ball screws are respectively connected to the corresponding driven gears. The rotation of the two driven gears drives the corresponding lifting ball screws to rotate.

[0009] A further feature of this invention is that two lifting sliders are slidably installed on the inner side of the pressure table. The two lifting sliders are respectively threaded onto the corresponding lifting ball screws. One side of each of the two lifting sliders is connected to the same pressing metal block, and the same pressing metal block can be moved by the two lifting sliders.

[0010] A further feature of this invention is that: a clamping groove is provided on the top of the edge-binding table, a movable ball screw is rotatably installed on the inner side of the clamping groove, and a movable slider is slidably installed on the inner side of the clamping groove. The movable slider is threaded onto the movable ball screw, so that the movable slider can be moved by the movable ball screw.

[0011] A further feature of this invention is that a clamping base is fixedly installed on the top of the movable slider, and two clamping sliders are slidably installed on the inner side of the clamping base, with a sliding groove provided on one side of each clamping slider.

[0012] A further feature of this invention is that a nut is fixedly installed on one side of the clamping base, and a threaded extrusion rod is slidably installed through one side of the clamping base, the threaded extrusion rod being threadedly connected to the nut.

[0013] A further feature of this invention is that an extrusion metal block is rotatably mounted on one end of the extrusion threaded rod, and both sides of the extrusion metal block are provided with protrusions, each of which is adapted to a corresponding sliding groove.

[0014] A further feature of this invention is that a clip is fixedly installed on one side of each of the two clamping sliders, and one side of each clip is slidably installed on one side of the same clamping base.

[0015] The beneficial effects of this utility model are: the mechanism can clamp one side of the fabric and stretch it to make the fabric lay flat, which is less likely to cause wrinkles and prevents the effect of the binding from being affected, thus increasing the practicality of the device. The mechanism can also be used to conveniently and quickly adjust the orientation of the fabric, which greatly improves work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a single-needle sewing machine edge binding structure proposed in this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional view of a single-needle sewing machine edge binding structure proposed in this utility model;

[0019] Figure 3 This is an exploded three-dimensional structural diagram of the rotating mechanism of the single-needle sewing machine edging structure proposed in this utility model.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the pressing mechanism of a single-needle sewing machine hemming structure proposed in this utility model.

[0021] Figure 5 This is a three-dimensional cross-sectional view of the clamping mechanism of the single-needle sewing machine edge-binding structure proposed in this utility model.

[0022] In the diagram, 1. Hemming base; 2. Hemming table; 3. Limiting ratchet; 4. Rotating support; 5. Fixed ratchet; 6. Return spring; 7. Pressure table; 8. Pressing metal block; 9. Knob; 10. Driving gear; 11. Driven gear; 12. Lifting ball screw; 13. Moving ball screw; 14. Moving slider; 15. Clamping base; 16. Clamping slider; 17. Sliding groove; 18. Extruding metal block; 19. Extruding threaded rod; 20. Nut; 21. Clamp; 22. Lifting slider. Detailed Implementation

[0023] Reference Figure 1-5A single-needle sewing machine hemming structure includes an hemming base 1. The top of the hemming base 1 has a rotating groove, and a rotating support 4 is fixedly installed inside the rotating groove. An hemming platform 2 is rotatably installed on the top of the rotating support 4. A limiting ratchet 3 is fixedly installed at the bottom of the hemming platform 2. A fixed ratchet 5 is slidably installed inside the rotating support 4. The fixed ratchet 5 and the limiting ratchet 3 are compatible. A return spring 6 is fixedly installed on the inner wall of the bottom of the rotating support 4. The other end of the return spring 6 is connected to the bottom of the fixed ratchet 5.

[0024] In this embodiment, a pressure table 7 is fixedly installed on the top of the edge-sealing table 2, and a pressing metal block 8 is slidably installed on one side of the pressure table 7.

[0025] In this embodiment, a knob 9 is rotatably mounted on the top of the pressure table 7, and a linkage groove is provided inside the pressure table 7. A drive gear 10 is rotatably mounted on the top inner wall of the linkage groove, and the drive gear 10 is connected to the knob 9.

[0026] In this embodiment, two driven gears 11 are rotatably installed on the bottom inner wall of the linkage groove. Both driven gears 11 mesh with the same driving gear 10. Two lifting ball screws 12 are rotatably installed on the inner side of the pressure table 7. The two lifting ball screws 12 are respectively connected to the corresponding driven gears 11. The rotation of the two driven gears 11 drives the corresponding lifting ball screws 12 to rotate.

[0027] In this embodiment, two lifting sliders 22 are slidably installed on the inner side of the pressure table 7. The two lifting sliders 22 are respectively threaded onto the corresponding lifting ball screws 12. One side of each of the two lifting sliders 22 is connected to the same pressing metal block 8, and the same pressing metal block 8 can be moved by the two lifting sliders 22.

[0028] In this embodiment, the top of the edge-binding table 2 is provided with a clamping groove, a movable ball screw 13 is rotatably installed on the inner side of the clamping groove, and a movable slider 14 is slidably installed on the inner side of the clamping groove. The movable slider 14 is threaded onto the movable ball screw 13, so that the movable slider 14 can be moved by the movable ball screw 13.

[0029] In this embodiment, a clamping base 15 is fixedly installed on the top of the movable slider 14, and two clamping sliders 16 are slidably installed on the inner side of the clamping base 15. A sliding groove 17 is opened on one side of each of the two clamping sliders 16.

[0030] In this embodiment, a nut 20 is fixedly installed on one side of the clamping base 15, and a threaded rod 19 is slidably installed through one side of the clamping base 15. The threaded rod 19 is threadedly connected to the nut 20.

[0031] In this embodiment, an extrusion metal block 18 is rotatably mounted on one end of the extrusion threaded rod 19. Both sides of the extrusion metal block 18 are provided with protrusions, and the two protrusions are respectively adapted to the corresponding sliding grooves 17.

[0032] In this embodiment, a clip 21 is fixedly installed on one side of each of the two clamping sliders 16, and one side of each clip 21 is slidably installed on one side of the same clamping base 15.

[0033] Working Principle: During use, the operator places the binding fabric directly beneath the pressing metal block 8, then lays the processing fabric flat on top of the binding fabric. The binding fabric is then folded to wrap around the processing fabric. The knob 9 is then turned, causing the drive gear 10 to rotate. The drive gear 10 then rotates two driven gears 11, which in turn rotate the corresponding lifting ball screws 12. These two lifting ball screws 12 move the corresponding lifting sliders 22, which in turn move the pressing metal block 8, thus pressing the binding fabric and the processing fabric together. One side of the processing fabric is then placed on the clamping mechanism. The extrusion threaded rod 19 is rotated. The extrusion threaded rod 19 is threadedly connected to the nut 20, which is fixedly mounted on the clamping base 15. Therefore, the extrusion threaded rod 19 moves along the thread of the nut 20, causing the extrusion metal block 18 to move outwards, thus pressing the fabric together. The movement of metal block 18 moves two clamping sliders 16, which slide inside the clamping base 15. As the two sliders move closer together, they move corresponding clamps 21, clamping one side of the fabric. Then, the operator rotates the moving ball screw 13, which moves the moving slider 14, which in turn moves the clamping mechanism, straightening the fabric and preventing wrinkles. When processing irregularly shaped fabrics, the operator rotates the binding table 2 to accommodate the movement of the sewing machine needle. The fixed ratchet 5 and the limiting ratchet 3 are matched to effectively prevent the binding table 2 from reversing and affecting the binding. When the binding table 2 needs to be reversed, the operator presses the protrusions on both sides of the fixed ratchet 5 to lower it. At this time, the fixed ratchet 5 and the limiting ratchet 3 are not in contact, allowing the binding table 2 to be reversed, facilitating the binding of the fabric.

[0034] The technological advancements of this invention compared to existing technologies are as follows: the designed mechanism can clamp one side of the fabric and stretch it to lay it flat, reducing wrinkles and preventing any impact on the binding effect. This increases the practicality of the device. Furthermore, the designed mechanism allows for convenient and quick adjustment of the fabric's orientation, greatly improving work efficiency.

Claims

1. A single-needle sewing machine binding structure, characterized in that, Includes an edge-binding base (1), the top of which is provided with a rotating groove, a rotating support (4) is fixedly installed on the inner side of the rotating groove, and an edge-binding platform (2) is rotatably installed on the top of the rotating support (4). The bottom of the edge-binding table (2) is fixedly installed with a limiting ratchet (3), and the inner side of the rotating support (4) is slidably installed with a fixed ratchet (5). The fixed ratchet (5) and the limiting ratchet (3) are compatible. A return spring (6) is fixedly installed on the bottom inner wall of the rotating support (4), and the other end of the return spring (6) is connected to the bottom of the fixed ratchet (5).

2. The single-needle sewing machine binding structure according to claim 1, characterized in that: A pressure table (7) is fixedly installed on the top of the edge-sealing table (2), and a pressing metal block (8) is slidably installed on one side of the pressure table (7).

3. The single-needle sewing machine binding structure according to claim 2, characterized in that: A knob (9) is rotatably mounted on the top of the pressure table (7). A linkage groove is provided inside the pressure table (7). A drive gear (10) is rotatably mounted on the inner wall of the top of the linkage groove. The drive gear (10) is connected to the knob (9).

4. The single-needle sewing machine binding structure according to claim 3, characterized in that: Two driven gears (11) are rotatably installed on the bottom inner wall of the linkage groove. Both driven gears (11) mesh with the same driving gear (10). Two lifting ball screws (12) are rotatably installed on the inner side of the pressure table (7). The two lifting ball screws (12) are respectively connected to the corresponding driven gears (11).

5. The single-needle sewing machine binding structure according to claim 4, characterized in that: Two lifting sliders (22) are slidably installed on the inner side of the pressure table (7). The two lifting sliders (22) are respectively threaded onto the corresponding lifting ball screws (12). One side of each of the two lifting sliders (22) is connected to the same pressing metal block (8).

6. The single-needle sewing machine binding structure according to claim 1, characterized in that: The top of the edge-binding table (2) is provided with a clamping groove, and a movable ball screw (13) is rotatably installed on the inner side of the clamping groove. A movable slider (14) is slidably installed on the inner side of the clamping groove, and the movable slider (14) is threaded onto the movable ball screw (13).

7. The single-needle sewing machine binding structure according to claim 6, characterized in that: The top of the movable slider (14) is fixedly mounted with a clamping base (15), and two clamping sliders (16) are slidably mounted on the inner side of the clamping base (15). A sliding groove (17) is opened on one side of each of the two clamping sliders (16).

8. The single-needle sewing machine binding structure according to claim 7, characterized in that: A nut (20) is fixedly installed on one side of the clamping base (15), and a threaded rod (19) is slidably installed through one side of the clamping base (15). The threaded rod (19) is threadedly connected to the nut (20).

9. The single-needle sewing machine binding structure according to claim 8, characterized in that: One end of the extrusion threaded rod (19) is rotatably mounted with an extrusion metal block (18). Both sides of the extrusion metal block (18) are provided with protrusions, and the two protrusions are respectively adapted to the corresponding sliding grooves (17).

10. The single-needle sewing machine binding structure according to claim 9, characterized in that: Each of the two clamping sliders (16) has a clip (21) fixedly installed on one side, and each of the two clips (21) is slidably installed on one side of the same clamping base (15).

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