A wave lace triangular needle sewing device

Abstract

This application discloses a triangular needle sewing device for wavy lace, including a sewing worktable and a machine body, the machine body being mounted on the sewing worktable; a presser foot connecting rod is connected to the end of the machine body, and the presser foot connecting rod is connected to a presser foot assembly; the presser foot assembly includes a mounting base, a first presser foot, and a second presser foot, the mounting base being connected to the presser foot connecting rod, and the first and second presser feet being mounted on the bottom of the mounting base; a width adjustment structure is provided between the first and second presser feet, the first and second presser feet being adapted to different widths of lace sewing paths through the width adjustment structure. By providing a width adjustment structure between the two presser feet, the distance between the two presser feet can be flexibly adjusted to meet the sewing paths of different needles, eliminating the step of changing presser feet of different specifications, enabling the sewing equipment to meet the sewing of different wavy lace, thereby improving sewing efficiency.

Description

Technical Field

[0001] This application belongs to the field of garment sewing device technology, and in particular relates to a wavy lace triangular needle sewing device. 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, and the sewing speed is fast and easy to use. The presser foot is an essential component of the sewing machine's feeding mechanism. Different types of presser feet play a crucial role in the production process, such as presser feet for topstitching, concealed zippers, and pleating. Selecting the right presser foot for different sewing operations is very important.

[0003] Currently, the presser foot of most sewing devices on the market is a fixed unit. When sewing wavy lace with triangular needles, it is necessary to consider the position between the presser foot and the needle, and whether the diameter of the hole left on the presser foot surface meets the sewing path of the triangular needle. If the diameter of the hole on the presser foot surface does not match the sewing path of the needle, the needle will collide and be damaged. Therefore, it is necessary to replace the presser foot with a different width to adapt to the sewing of different laces, which reduces the sewing efficiency. Utility Model Content

[0004] In view of this, the main objective of this application is to provide a triangular needle sewing device for wavy lace, which allows the width of the presser foot of the sewing equipment to be adjustable to meet the sewing paths of different needles, eliminating the need to change presser feet of different specifications, and enabling the sewing equipment to meet the sewing of different wavy lace, thereby improving sewing efficiency.

[0005] The technical solution adopted in this application is as follows: a wavy lace triangular needle sewing device, including a sewing worktable;

[0006] The machine body is mounted on the sewing workbench; a presser foot connecting rod is connected to the end of the machine body, and a presser foot assembly is connected to the presser foot connecting rod; wherein, the presser foot assembly includes a mounting base, a first presser foot, and a second presser foot, the mounting base is connected to the presser foot connecting rod, and the first presser foot and the second presser foot are mounted on the bottom of the mounting base; a width adjustment structure is provided between the first presser foot and the second presser foot, and the first presser foot and the second presser foot are used to adapt to lace sewing paths of different widths through the width adjustment structure.

[0007] Furthermore, the width adjustment structure includes a rod that extends laterally through the first pressure foot and has its end inserted into the second pressure foot. A first elastic element is sleeved on the end of the rod near the second pressure foot, and an adjusting nut is threaded onto the end of the rod away from the second pressure foot.

[0008] The top surface of the first pressure foot is connected to a sliding block, which is L-shaped. The mounting base is provided with a through groove that is slidably connected to the sliding block. The end of the through groove near the adjusting nut is connected to a limiting block for lateral limiting of the sliding block.

[0009] Furthermore, the first presser foot is provided with a width adjustment structure located on the periphery of the rod body and used to accommodate the first elastic element; one end of the first elastic element abuts against the end face of the second presser foot near the first presser foot, and the other end of the first elastic element abuts against the bottom end of the accommodating cavity.

[0010] Furthermore, a guide rod is connected to the end face of the first presser foot near the second presser foot, and the end of the guide rod away from the first presser foot is placed in the second presser foot.

[0011] Furthermore, the guide rod is either a cylinder or a rectangle.

[0012] Furthermore, the mounting base is rotatably connected to the pressure foot connecting rod.

[0013] Furthermore, the rear end of the mounting base is provided with a second elastic body, and the two ends of the second elastic body are respectively connected to the mounting base and the pressure foot connecting rod.

[0014] Compared with the prior art, the present application has the following advantages: by setting a width adjustment structure between the two presser feet, the distance between the two presser feet can be flexibly adjusted to meet the sewing paths of different needles, eliminating the step of changing presser feet of different specifications, and enabling the sewing equipment to meet the sewing of different wavy lace, thereby improving sewing efficiency. Attached Figure Description

[0015] The following figures are for illustrative purposes only and are not intended to limit the scope of this application, wherein:

[0016] Figure 1 This is a three-dimensional schematic diagram of the present application;

[0017] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0018] Figure 3 This is an exploded structural diagram of the first presser foot, the second presser foot, and the presser foot assembly in this application;

[0019] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure.

[0020] Reference numerals: 10. Sewing worktable; 11. Machine body; 12. Presser foot connecting rod; 13. Presser foot assembly; 14. Mounting base; 15. First presser foot; 16. Second presser foot; 17. Width adjustment structure; 18. Rod body; 19. First elastic element; 20. Adjusting nut; 21. Sliding block; 22. Through groove; 23. Limiting block; 26. Receiving cavity; 27. Guide rod; 28. Second elastic element. Detailed Implementation

[0021] To make the objectives, technical solutions, design methods, and advantages of this application clearer, the following detailed description, in conjunction with the accompanying drawings, provides specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application.

[0022] It should be noted that this application is a triangular needle sewing device for wavy lace, which is mainly an improvement on the problems existing in the triangular needle sewing process of wavy lace. There are many patterns for triangular needle sewing, and the sewing path is either wide or narrow. Therefore, it is necessary to change the corresponding sewing equipment presser foot to adapt to the sewing path of different needles, which will lead to a waste of processing time. Therefore, this application is proposed to save change time and to be applicable to the triangular needle sewing of various different laces.

[0023] This application is a wavy lace triangular needle sewing device, including a sewing worktable 10 and a machine body 11;

[0024] The machine body 11 is mounted on the sewing workbench 10; a presser foot connecting rod 12 is connected to the end of the machine body 11, and a presser foot assembly 13 is connected to the presser foot connecting rod 12; wherein, the presser foot assembly 13 includes a mounting base 14, a first presser foot 15 and a second presser foot 16, the mounting base 14 is connected to the presser foot connecting rod 12, and the first presser foot 15 and the second presser foot 16 are mounted on the bottom of the mounting base 14; a width adjustment structure 17 is provided between the first presser foot 15 and the second presser foot 16, and the first presser foot 15 and the second presser foot 16 are used to adapt to lace sewing paths of different widths through the width adjustment structure 17.

[0025] In the above, the mounting base 14 is rotatably connected to the presser foot connecting rod 12; the rear end of the mounting base 14 is provided with a second elastic body 28, and the two ends of the second elastic body 28 are respectively connected to the mounting base 14 and the presser foot connecting rod 12.

[0026] In the above, the distance between the two presser feet is flexibly adjusted by the width adjustment structure 17 to meet the sewing paths of different needles, eliminating the step of changing presser feet of different specifications, so that the sewing equipment can meet the sewing of different wavy lace, thereby improving sewing efficiency.

[0027] As one embodiment of this application, please refer to the following: Figures 1-4 As shown, in this embodiment, the width adjustment structure 17 includes a rod 18, which extends laterally through the first pressure foot 15 and its end extends into the second pressure foot 16. A first elastic element 19 is sleeved on the end of the rod 18 near the second pressure foot 16, and an adjusting nut 20 is threadedly connected to the end of the rod 18 away from the second pressure foot 16. A sliding block 21 is connected to the top surface of the first pressure foot 15. The sliding block 21 is L-shaped. The mounting base 14 is provided with a through groove 22 that is slidably connected to the sliding block 21. A limiting block 23 for lateral limiting of the sliding block 21 is connected to the end of the through groove 22 near the adjusting nut 20.

[0028] In the above, by adjusting the nut 20 on the rod 18, the first elastic body 19 extends and drives the first presser foot 15 to move away from the second presser foot 16 along the rod 18, so that the distance between the first presser foot 15 and the second presser foot 16 is adjusted to the actual width used, so that the position between the two presser feet is the width of the matching sewing path. During this process, the sliding block 21 slides in the mounting base 14 and can play a guiding role. At the same time, through the cooperation between the sliding block 21 and the mounting base 14, it can be ensured that the first presser foot 15 will not tilt, so that the two presser feet are kept at the same level, thereby ensuring the flatness of the pressed fabric.

[0029] As one embodiment of this application, please refer to the following: Figures 1-4 As shown, in this embodiment, the first presser foot 15 is provided with a width adjustment structure 26 located on the periphery of the rod body 18 and used to accommodate the first elastic member 19. The rod body and the first presser foot are in clearance fit. One end of the first elastic member 19 abuts against the end face of the second presser foot 16 near the first presser foot 15, and the other end of the first elastic member 19 abuts against the bottom end of the accommodating cavity 26.

[0030] As one embodiment of this application, in order to ensure the stability of the two pressers during the adjustment process and to ensure the pressing effect of the two pressers on the fabric, further settings are made, as detailed in the following reference. Figures 1-4 As shown, in this embodiment, a guide rod 27 is connected to the end face of the first presser foot 15 near the second presser foot 16, and the end of the guide rod 27 away from the first presser foot 15 is placed in the second presser foot 16; the guide rod 27 is either a cylinder or a rectangle.

[0031] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A triangular needle sewing device for wavy lace, characterized in that, include, Sewing workbench (10); The machine body (11) is installed on the sewing workbench (10); the end of the machine body (11) is connected to a presser foot connecting rod (12), and the presser foot connecting rod (12) is connected to a presser foot assembly (13); wherein, the presser foot assembly (13) includes a mounting base (14), a first presser foot (15) and a second presser foot (16), the mounting base (14) is connected to the presser foot connecting rod (12), and the first presser foot (15) and the second presser foot (16) are installed at the bottom of the mounting base (14); a width adjustment structure (17) is provided between the first presser foot (15) and the second presser foot (16), and the first presser foot (15) and the second presser foot (16) are used to adapt to different widths of lace sewing paths through the width adjustment structure (17).

2. The wavy lace triangular needle sewing device according to claim 1, characterized in that, The width adjustment structure (17) includes a rod (18), which extends laterally through the first pressure foot (15) and the end of the rod (18) extends into the second pressure foot (16). A first elastic element (19) is sleeved on the end of the rod (18) near the second pressure foot (16), and an adjusting nut (20) is threaded on the end of the rod (18) away from the second pressure foot (16). The top surface of the first pressure foot (15) is connected to a sliding block (21), the sliding block (21) is L-shaped, and the mounting base (14) is provided with a through groove (22) that is slidably connected to the sliding block (21). The end of the through groove (22) near the adjusting nut (20) is connected to a limiting block (23) for lateral limiting of the sliding block (21).

3. The wavy lace triangular needle sewing device according to claim 2, characterized in that, The first presser foot (15) has a receiving cavity (26) located on the periphery of the rod body (18) and used to accommodate the first elastic member (19); one end of the first elastic member (19) abuts against the end face of the second presser foot (16) near the first presser foot (15), and the other end of the first elastic member (19) abuts against the bottom end of the receiving cavity (26).

4. The wavy lace triangular needle sewing device according to claim 1, characterized in that, A guide rod (27) is connected to the end face of the first presser foot (15) near the second presser foot (16), and the end of the guide rod (27) away from the first presser foot (15) is placed in the second presser foot (16).

5. The wavy lace triangular needle sewing device according to claim 4, characterized in that, The guide rod (27) is either a cylinder or a rectangle.

6. The wavy lace triangular needle sewing device according to claim 1, characterized in that, The mounting base (14) is rotatably connected to the presser foot connecting rod (12).

7. The wavy lace triangular needle sewing device according to claim 6, characterized in that, The rear end of the mounting base (14) is provided with a second elastic body (28), and the two ends of the second elastic body (28) are respectively connected to the mounting base (14) and the pressure foot connecting rod (12).

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