Rapid hemming device for sewing machine
By designing a movable U-shaped limiting block and insert rod structure, the width adjustment of the sewing machine hemming device is realized, which solves the problem of insufficient applicability of the existing device and improves the operating efficiency.
Patent Information
- Application Number
- CN202520500610.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The existing sewing machine hemming device has a fixed structure, which cannot adapt to the hemming width requirements of different garment processing, resulting in cumbersome replacement operations.
A rapid hemming device including a first U-shaped limiting block and a second U-shaped limiting block was designed. By combining the moving block and the insert rod, the hemming width of the fabric can be flexibly adjusted and precisely controlled by a scale.
The device's applicability has been improved, enabling the hem width to be quickly adjusted according to different garment processing needs, thus simplifying the operation process.
Smart Images
Figure CN223921736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewing machine technology, and in particular to a quick hemming device for sewing machines. Background Technology
[0002] A sewing machine is a machine that uses one or more sewing threads to create one or more stitches on fabric, allowing one or more layers of fabric to interweave or sew together. 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 is fast and easy to use. Currently, the edges of fabric are often treated by rolling the edges before sewing, making the edges evener, more beautiful, and also increasing their strength.
[0003] During operation, the required hemming width varies depending on the specific garment processing task. The existing equipment has a fixed structure, so the width limitation is relatively simple. This makes it cumbersome to constantly change hemming devices of the appropriate width, resulting in significant limitations. Utility Model Content
[0004] This utility model discloses a quick hemming device for sewing machines, which aims to solve the technical problem that the width of the hemming required varies for different garment processing tasks. Existing devices have a fixed structure, so the width limitation is relatively simple. This leads to the need to constantly change hemming devices with the appropriate width during use.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A quick hemming device for a sewing machine includes a first U-shaped limiting block and a second U-shaped limiting block. A support block is fixedly connected to the left side of the first U-shaped limiting block, and a guide block is fixedly connected to the lower end of the support block. Limiting rods are fixedly connected to the upper and lower positions of the right side of the second U-shaped limiting block, respectively. The upper and lower limiting rods are slidably connected to the interior of the first U-shaped limiting block and the second U-shaped limiting block, respectively. A rectangular opening is formed at the upper end of the support block, and a moving block is slidably connected inside the rectangular opening. The lower end of the moving block is fixedly connected to the upper end of the second U-shaped limiting block, and a rectangular rod is slidably connected inside the moving block. A horizontal block is fixedly connected to the upper end of the rectangular rod, and insert rods are fixedly connected to the front and rear positions of the lower end of the horizontal block. Limiting holes are evenly formed at the upper end of the support block.
[0007] Preferably, a sliding rod is fixedly connected inside the rectangular opening, and the wall of the sliding rod is slidably connected to the inside of the moving block;
[0008] Preferably, a spring is sleeved on the outer side of the rectangular rod;
[0009] Preferably, a scale is fixedly connected to the upper end of the support block;
[0010] Preferably, a mounting base is fixedly connected to the right side of the first U-shaped limiting block.
[0011] As can be seen from the above, the advantages of the quick hemming device for sewing machines provided by this utility model are: during operation, the position of the second U-shaped limiting block can be moved according to the needs of the work, thereby changing the width of the hemmed fabric and improving the applicability of the device. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of a quick hemming device for a sewing machine proposed in this utility model.
[0014] Figure 2 This is a cross-sectional structural diagram of a quick hemming device for a sewing machine proposed in this utility model.
[0015] Figure 3 This utility model proposes a quick hemming device for sewing machines. Figure 2 Enlarged structural diagram at point A in the middle.
[0016] Figure 4 This is a schematic diagram of the second U-shaped limiting block structure of a quick hemming device for sewing machines proposed in this utility model.
[0017] In the diagram: 1. Mounting base; 2. First U-shaped limiting block; 3. Support block; 4. Second U-shaped limiting block; 5. Horizontal block; 6. Guide block; 7. Insert rod; 8. Slide rod; 9. Rectangular opening; 10. Limiting hole; 11. Scale; 12. Rectangular rod; 13. Spring; 14. Moving block; 15. Limiting rod. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments.
[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0020] Reference Figure 1-4 A quick hemming device for a sewing machine includes a first U-shaped limiting block 2 and a second U-shaped limiting block 4. A mounting base 1 is fixedly connected to the right side of the first U-shaped limiting block 2, securing the entire device to the sewing machine. A support block 3 is fixedly connected to the left side of the first U-shaped limiting block 2, serving a connecting function. A guide block 6 is fixedly connected to the lower end of the support block 3, guiding the fabric's winding position. Limiting rods 15 are fixedly connected to the upper and lower positions of the right side of the second U-shaped limiting block 4. The upper and lower limiting rods 15 are slidably connected to the interior of the first U-shaped limiting block 2 and the second U-shaped limiting block 4, respectively, thus allowing the second U-shaped limiting block... 4. It can move stably left and right. A rectangular opening 9 is opened at the upper end of the support block 3. A moving block 14 is slidably connected inside the rectangular opening 9. The moving block 14 can move left and right inside the rectangular opening 9. The lower end of the moving block 14 is fixedly connected to the upper end of the second U-shaped limiting block 4. The movement of the moving block 14 drives the second U-shaped limiting block 4 to move left and right. A rectangular rod 12 is slidably connected inside the moving block 14. A horizontal block 5 is fixedly connected at the upper end of the rectangular rod 12. Insert rods 7 are fixedly connected at the front and rear positions of the lower end of the horizontal block 5. Limiting holes 10 are evenly opened at the upper end of the support block 3. Insert rods 7 are inserted into the interior of the limiting holes 10, thereby limiting the moving block 14.
[0021] During operation, the horizontal block 5 is pulled upward according to the width of the hem, causing the insert rod 7 to move upward and disengage from the limiting hole 10. Then, the moving block 14 is moved, causing the moving block 14 to drive the second U-shaped limiting block 4 to move left and right. When the desired position is reached, the insert rod 7 is inserted into the limiting hole 10, limiting the movement of the moving block 14. In this way, the position of the second U-shaped limiting block 4 can be moved according to the needs of the work, thereby changing the width of the fabric hem and improving the applicability of the device.
[0022] Reference Figure 3 A sliding rod 8 is fixedly connected inside the rectangular opening 9. The wall of the sliding rod 8 is slidably connected to the inside of the moving block 14. The sliding rod 8 makes the moving block 14 more stable when it moves.
[0023] Reference Figure 3 A spring 13 is sleeved on the outside of the rectangular rod 12. The spring 13 exerts a downward pushing force on the rectangular rod 12, so that the insertion rod 7 can be stably inserted into the limiting hole 10.
[0024] Reference Figure 1 and Figure 2 A scale 11 is fixedly connected to the upper end of the support block 3, which can intuitively control the distance of movement.
[0025] Working principle: During operation, the horizontal block 5 is pulled upward according to the width of the hem, causing the insert rod 7 to move upward and disengage from the limiting hole 10. Then, the moving block 14 is moved, causing the second U-shaped limiting block 4 to move left and right. When the desired position is reached, the insert rod 7 is inserted into the limiting hole 10, limiting the movement of the moving block 14. In this way, the position of the second U-shaped limiting block 4 can be moved according to the needs of the operation, thereby changing the width of the fabric hem and improving the applicability of the device.
[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0027] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A quick hemming device for a sewing machine, comprising a first U-shaped limiting block (2) and a second U-shaped limiting block (4), characterized in that, A support block (3) is fixedly connected to the left side of the first U-shaped limiting block (2), and a guide block (6) is fixedly connected to the lower end of the support block (3). Limiting rods (15) are fixedly connected to the upper and lower positions of the right side of the second U-shaped limiting block (4). The upper and lower limiting rods (15) are slidably connected to the interior of the first U-shaped limiting block (2) and the second U-shaped limiting block (4), respectively. A rectangular opening (9) is opened at the upper end of the support block (3). A moving block (14) is slidably connected inside the rectangular opening (9). The lower end of the moving block (14) is fixedly connected to the upper end of the second U-shaped limiting block (4). A rectangular rod (12) is slidably connected inside the moving block (14). A horizontal block (5) is fixedly connected to the upper end of the rectangular rod (12). Insert rods (7) are fixedly connected to the front and rear positions of the lower end of the horizontal block (5). Limiting holes (10) are evenly opened at the upper end of the support block (3).
2. The quick hemming device for a sewing machine according to claim 1, characterized in that, A slide rod (8) is fixedly connected inside the rectangular opening (9), and the wall of the slide rod (8) is slidably connected to the inside of the moving block (14).
3. The quick hemming device for a sewing machine according to claim 1, characterized in that, A spring (13) is fitted on the outside of the rectangular rod (12).
4. A quick hemming device for a sewing machine according to claim 1, characterized in that, A scale (11) is fixedly connected to the upper end of the support block (3).
5. A quick hemming device for a sewing machine according to claim 1, characterized in that, The right side of the first U-shaped limiting block (2) is fixedly connected to a mounting base (1).