Sewing aid

Abstract

This application relates to the field of sewing equipment, and more particularly to a sewing auxiliary device. It includes a fabric presser foot frame installed on a sewing machine, a visible presser foot plate installed within the fabric presser foot frame, and a badge presser foot plate that abuts against a badge. The visible presser foot plate has a badge through-hole in its center, and one end of the badge presser foot plate is disposed within the visible presser foot plate. The badge presser foot plate is embedded in the through-hole, and the badge presser foot plate and the visible presser foot plate form a sewing gap, which communicates with the through-hole. This structural design allows the bottom surface of the badge presser foot plate to contact the badge, improving the fit between the badge and the fabric and preventing shifting of the badge and fabric during sewing, which could easily lead to wrinkles. The structure is simple and easy to operate, reducing production costs and improving processing efficiency.

Description

Technical Field

[0001] This application relates to the field of sewing equipment, and in particular to a sewing auxiliary device. Background Technology

[0002] Sewing equipment is widely used in the modern textile industry, covering multiple fields such as garment manufacturing and home textile production. With constantly changing market demands and technological advancements, more and more garments and home textiles require designs with complex patterns or special lines. Efficient and precise sewing processes have become key factors in improving product quality and reducing production costs. In the sewing industry, herringbone stitch refers to a unique technique of sewing multiple pieces of fabric together, creating a herringbone-shaped stitch. Sewing badges refers to the process of sewing small, designed badges, logos, or patterns onto clothing, bags, children's wear, or other textiles by hand or using a sewing machine. Currently, several traditional methods are commonly used in the industry to complete sewing tasks requiring precise positioning, such as herringbone stitches and badges. First, some methods rely on manual positioning combined with simple clamps to hold the fabric in place, using the hand to press the badge down for manual sewing. This method offers high flexibility but depends entirely on the worker's experience. Second, some methods use a regular presser foot to hold the fabric down, along with marking tools for positioning, relying on visual judgment for operation. Third, some methods use a pre-designed graphic mold to directly cover the fabric sewing area, attempting to achieve a better planar pressing effect for easier subsequent work. While these methods can achieve herringbone stitches and badges, they still have many limitations. Existing methods lack an effective synchronous positioning mechanism for the sewing area, leading to sewing deviations during actual operation. For example, with badges of complex shapes, poor positioning makes stitching difficult, and wrinkles easily form between the badge and the fabric, resulting in the badge not adhering well to the fabric and increasing the product rework rate. Especially for small processing plants, since the orders they receive are scattered and come in a variety of complex patterns and styles, and the order quantity for each style is not very large, if they use a mold plate with a single graphic to press the fabric for sewing each pattern, not only will the processing steps be very troublesome, but it will also lead to an increase in production costs and a decrease in processing efficiency per unit time, which will directly affect the overall economic benefits and market competitiveness of production. Utility Model Content

[0003] In order to improve the fit between the badge and the fabric during the sewing process, avoid wrinkles between the badge and the fabric, eliminate the need to replace the entire mold plate used to press the flat material, reduce production costs and improve processing efficiency, this application provides a sewing auxiliary device.

[0004] To achieve the above objectives, this application provides a sewing auxiliary device, including a fabric presser foot frame installed on a sewing machine, a visible presser foot plate installed within the fabric presser foot frame, and a badge presser foot plate abutting against a badge. The visible presser foot plate has a badge through-hole in its center, one end of the badge presser foot plate is positioned within the visible presser foot plate, and the badge presser foot plate is embedded in the through-hole. The badge presser foot plate and the visible presser foot plate form a sewing gap, which communicates with the through-hole. By adopting the above technical solution, when sewing is performed, the fabric presser foot frame firmly fixes the fabric, preventing displacement or wrinkling during sewing. The badge through-hole in the center of the visible presser foot plate accurately positions the badge, ensuring a stable relative position between the badge and the fabric during sewing. The badge presser foot plate, embedded in the through-hole and forming a sewing gap together with the visible presser foot plate, allows for accurate sewing of the badge edge by sewing through the gap with a sewing needle. Furthermore, because the sewing gap is connected to the through hole, this layout effectively avoids the problem of unclear sewing paths caused by obstruction, further improving sewing accuracy. In summary, this solution achieves precise positioning and sewing of complex patterns or special lines through a reasonable structural design, significantly improving the product yield and reducing rework costs. Preferably, the sewing gap is set along the circumference of the badge presser foot. By adopting the above technical solution, the sewing gap is set along the circumference of the badge presser foot, making the force between the badge and the fabric more uniform during the sewing process. Specifically, since the sewing gap forms a continuous working path around the entire edge of the badge presser foot, this path not only ensures that the sewing needle can accurately pass through the space reserved between the badge and the fabric, but also effectively avoids badge displacement or fabric wrinkling caused by uneven local pressure. Preferably, the spacing of the sewing gap is 'a', where 'a' ranges from 0.5cm to 2cm. By adopting the above technical solution, the sewing gap is set within the range of 0.5cm to 2cm. This size range has been reasonably optimized to fully consider the actual needs of badges of different thicknesses and the stability of the stitch formation during the sewing process. When the gap is too small, the movement space between the badge and the fabric will be restricted, affecting the smoothness of the needle and potentially causing jamming. On the other hand, if the gap is too large, it will be difficult to ensure the stable fixation of the badge during the sewing process, thus causing positional displacement or wrinkling. Therefore, selecting a gap value within this specific range ensures that the badge is firmly fixed in the appropriate position, preventing unnecessary movement, while also leaving enough space for the sewing needle to pass through smoothly, ultimately achieving an efficient and precise sewing effect. Preferably, the badge presser foot is a trapezoidal frustum, and the bottom surface of the badge presser foot abuts against the badge. By adopting the above technical solution, the trapezoidal frustum design of the badge presser foot allows the side abutting the badge to have a larger contact area, while the side away from the badge uses a smaller area.This structural design is based on the principle of pressure distribution. A larger contact area allows for more even pressure application to the badge surface, effectively reducing the possibility of badge displacement or wrinkling during sewing. Simultaneously, because the area of ​​the side of the badge presser foot furthest from the badge is smaller, this difference helps reduce the overall weight of the presser foot, preventing excessive pressure from causing unnecessary deformation of the fabric underneath. Furthermore, this area difference ensures that the user can more easily manipulate and adjust the position of the badge presser foot during operation, improving sewing accuracy and work efficiency. Preferably, the visible presser foot extends with a first mounting portion, which connects to the fabric presser foot. The side of the first mounting portion closest to the fabric connects to the fabric presser foot, while the side furthest from the fabric presser foot connects to the sewing machine. By adopting the above technical solution, the first mounting portion extends from the surface of the visible presser foot, forming a stable connection structure. This design allows the first mounting portion to establish a reliable connection with both the fabric presser foot and the sewing machine. Specifically, the side of the first mounting part closest to the fabric is connected to the fabric presser foot, ensuring effective pressing of the fabric during operation. The side of the first mounting part furthest from the fabric is connected to the sewing machine, thus achieving overall positioning and stable support for the sewing auxiliary device. This layered connection method not only improves the assembly accuracy of the device but also facilitates adjusting the positional relationship between the visible presser foot and the fabric, further enhancing sewing quality and efficiency. Preferably, the badge presser foot extends to include a second mounting part connected to the visible presser foot, with the second mounting part extending beyond the surface of the badge presser foot. By adopting the above technical solution, the badge presser foot is provided with a second mounting part that extends from its surface, providing reliable structural support for the connection between the badge presser foot and other components. Specifically, the side of the second mounting part closest to the fabric is connected to the visible presser foot, a design that allows the badge presser foot to be securely mounted on the visible presser foot while ensuring a precise positional relationship between the two. In this way, during the sewing process, the badge presser foot can accurately align and press the badge firmly, avoiding sewing deviations caused by positional misalignment. Furthermore, this design simplifies the assembly process, improves the overall stability and operability of the device, and helps to increase sewing accuracy and work efficiency. Preferably, the width of the second mounting part is b, where b ranges from 0.5cm to 1cm.

[0005] By adopting the above technical solution, the range of the second mounting part is designed to be between 0.5cm and 1cm. If the second mounting part is too wide, it will cover more of the sewing gap, resulting in a large gap at the position of the second mounting part when the sewing needle sews the badge along the sewing gap, making it impossible for the sewing needle to sew and affecting the sewing effect. If the second mounting part is too narrow, the stability will be low, making it easy for the second mounting part to shift or even break when the badge presser foot presses down on the badge surface. Therefore, a range of 0.5cm to 1cm is more appropriate to ensure that the badge is firmly restricted to the appropriate position and avoids unnecessary movement.

[0006] Preferably, the second mounting part is rotatably disposed on the visible presser foot. By adopting the above technical solution, the second mounting part is rotatably disposed on the visible presser foot, allowing the badge presser foot plate to flexibly adjust its angle around the visible presser foot. This structural design fully utilizes the principle of mechanical rotation, enabling the badge presser foot plate to adaptively adjust according to badges of different shapes and sizes, thereby ensuring that the badge maintains a stable pressing state during the sewing process. At the same time, the rotatable connection between the second mounting part and the visible presser foot simplifies the operation steps, eliminating the need to disassemble the entire device when changing or adjusting the badge position, effectively improving work efficiency and reducing the adverse effects of human error. Ultimately, it achieves precise positioning while also taking into account ease of use and flexibility, significantly improving sewing quality and production efficiency. Preferably, the visible presser foot plate is provided with a groove, and the side of the second mounting part near the fabric is provided with a protrusion, which rotatably engages with the groove. By adopting the above technical solution, the matching design of the groove and the protrusion allows the second mounting part to be stably embedded in the visible presser foot plate, while allowing rotational movement between the two. This structure not only allows for angle adjustment of the badge presser foot relative to the visible presser foot, but also ensures the reliability and stability of the connection. Specifically, when the protrusion is precisely fitted into the groove, unnecessary radial displacement can be effectively limited, thus preventing loosening caused by external forces. Simultaneously, this design fully utilizes mechanical geometry principles, simplifying assembly steps and reducing manufacturing difficulty while ensuring flexible rotation. Therefore, this improvement significantly enhances the ease of operation of the entire sewing aid and its adaptability to different types of badges, further improving sewing accuracy and work efficiency. Preferably, the visible presser foot is a visible acrylic plate. By adopting the above technical solution and setting the visible presser foot as a visible acrylic material, the transparent and hard characteristics of acrylic can be fully utilized. On the one hand, the transparency allows the operator to clearly observe the state of the badge and fabric during sewing, ensuring accurate sewing paths and avoiding stitch deviations caused by obstructed vision; on the other hand, acrylic has good hardness and wear resistance, and is not easily deformed or damaged during repeated use, thus ensuring stability and reliability over long-term use. This design not only improves sewing precision but also extends the lifespan of the device, meeting actual production needs.

[0007] In summary, this application includes at least one of the following beneficial technical effects: 1. The design combining the fabric presser foot frame and the badge presser foot plate, through the sewing gap formed by the visible presser foot plate and the badge through-hole, achieves effective synchronous positioning of the sewing area, improves sewing accuracy, increases the tightness between the badge and the fabric, and reduces wrinkles that occur during the sewing process; 2. The badge presser foot is rotated and set on the visible presser foot, which is flexible and versatile. It eliminates the need to customize a special mold presser for each pattern, reduces production costs, and improves work efficiency for various work order scenarios in small processing plants. Attached Figure Description

[0008] Figure 1 This is a structural diagram of a sewing aid device.

[0009] Figure 2 yes Figure 1 A structural schematic diagram of the AA cross section.

[0010] Explanation of reference numerals in the attached drawings: 1. Fabric presser foot frame; 2. Visible presser foot plate; 3. Badge presser foot plate; 4. Through hole; 5. Sewing gap; 21. First mounting part; 22. Groove; 31. Second mounting part; 32. Protrusion. Detailed Implementation

[0011] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0012] This application discloses a sewing auxiliary device, referring to... Figure 1 It includes a fabric presser foot frame 1 installed on a sewing machine, a visible presser foot plate 2 installed in the middle of the fabric presser foot frame 1, and a badge presser foot plate 3 installed on the visible presser foot plate 2. The fabric presser foot frame 1 and the visible presser foot plate 2 are used to fix the fabric, and the badge presser foot plate 3 is used to fix the badge.

[0013] Specifically, in this embodiment, the side of the fabric presser foot frame 1 that presses the fabric is a smooth metal plate. In other embodiments, as long as the side in contact with the fabric is a relatively smooth contact surface that will not cause friction damage to the fabric, it is acceptable.

[0014] Specifically, the visible presser foot 2 has a through hole 4 in the middle. The badge presser foot 2 fits into the through hole 4 to hold the badge in place. The badge presser foot 3 and the visible presser foot 2 together form a sewing gap 5, which communicates with the through hole 4. The sewing gap 5 is set along the circumference of the badge presser foot 3 to ensure that the sewing needle can pass through it, stably and accurately sewing according to the shape of the badge. Furthermore, the spacing 'a' of the sewing gap 5 is 0.5cm-2cm. In this embodiment, the range of 0.5cm-2cm for the sewing gap 5 is a preferred range set according to the size of the sewing machine. In other sizes of sewing machines, the corresponding range of the sewing gap 5 will be adjusted accordingly until the badge is fixed while having enough space for the sewing needle to pass through smoothly. Further, the visible presser foot 2 is made of a transparent material, preferably acrylic, which has good wear resistance and light transmission, making it easy for the operator to observe the sewing area below. The visible presser foot 2 also includes a first mounting part 21, the side of which near the fabric is connected to the fabric presser foot frame 1, while the side away from the fabric is used to fix it to the sewing machine. The first mounting part 21 can extend beyond the surface of the visible presser foot 2. This double-layer mounting design enhances the stability of the entire device, preventing loosening or displacement under high-speed operation. Specifically, the badge presser foot 3 is a trapezoidal frustum, with the area of ​​the side abutting the badge being larger than the area of ​​the side of the badge presser foot 3 away from the badge. That is, the side abutting the badge is larger, which is used to better distribute pressure evenly, resulting in a better pressing effect on the badge and reducing the possibility of the badge shifting or wrinkling during sewing. Specifically, such as Figure 2As shown, the badge presser foot 3 extends with a second mounting part 31. The badge presser foot 3 is connected to the visible presser foot 2 via the second mounting part 31. The second mounting part 31 is rotatably mounted on the visible presser foot 2. In this embodiment, the visible presser foot 2 is provided with a groove 22, and the side of the second mounting part 31 near the fabric is provided with a protrusion 32. The protrusion 32 fits into the groove 22 to achieve rotation between the badge presser foot 3 and the visible presser foot 2, thereby adapting to more diverse processing conditions. The width b of the second mounting part 31 is in the range of 0.5cm-1cm to avoid the second mounting part 31 being too wide or too narrow, which would affect the flattening effect of the badge presser foot 3 on the badge. The specific principle of the above embodiment is as follows: The device is installed on a sewing machine and mainly includes a fabric presser foot frame 1, a visible presser foot 2, and a badge presser foot 3. The visible presser foot 2 is mounted on the fabric presser foot frame 1 via a first mounting plate 21. The visible presser foot 2 is made of a transparent material such as visible acrylic. The fabric presser foot frame 1 and the visible presser foot 2 together fix the fabric. A through hole 4 is provided in the center of the visible presser foot 2 to expose the badge. The badge presser foot 3 is rotatably mounted on the visible presser foot 2 via its second mounting part 31 and fits into the through hole 4 to press the badge down. Together, they form a sewing gap 5 communicating with the through hole 4, ensuring that the sewing needle can pass through stably and sew accurately according to the badge outline. Furthermore, the side of the badge presser foot 3 that abuts against the badge has a larger area to evenly distribute pressure, improve the adhesion between the badge and the fabric, and reduce badge displacement or wrinkles. When sewing, first use the fabric presser foot frame 1 and the visible presser foot plate 2 to fix the fabric together, align the through hole 4 with the badge, and then use the badge presser foot plate 3 to press the badge, so that the sewing needle sews the badge and the fabric in the sewing gap 5. After sewing is completed, the badge presser foot plate 3 can be rotated to make the badge flexible. This design enhances the stability of the device, makes it easy to observe the sewing area, and adapts to diverse processing conditions.

[0015] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sewing auxiliary device, characterized in that, The device includes a fabric presser foot frame (1) installed on a sewing machine, a visible presser foot plate (2) installed inside the fabric presser foot frame (1), and a badge presser foot plate (3) that abuts against a badge. The visible presser foot plate (2) has a badge through hole (4). One end of the badge presser foot plate (3) is located on the visible presser foot plate (2). The badge presser foot plate (3) is embedded in the badge through hole (4). The badge presser foot plate (3) and the visible presser foot plate (2) form a sewing gap (5). The sewing gap (5) communicates with the badge through hole (4).

2. The sewing auxiliary device according to claim 1, characterized in that, The sewing gap (5) is set along the circumference of the badge presser foot (3).

3. The sewing auxiliary device according to claim 1, characterized in that, The spacing of the sewing gap (5) is a, and the range of a is 0.5cm-2cm.

4. A sewing auxiliary device according to claim 1, characterized in that, The badge presser foot (3) is a trapezoidal frustum, and the bottom surface of the badge presser foot (3) abuts against the badge.

5. A sewing auxiliary device according to claim 1, characterized in that, The visible presser foot plate (2) extends to provide a first mounting part (21), which is connected to the fabric presser foot frame (1). The side of the first mounting part (21) close to the fabric is connected to the fabric presser foot frame (1), and the side of the first mounting part (21) away from the fabric presser foot frame (1) is connected to the sewing machine.

6. A sewing auxiliary device according to claim 1, characterized in that, The badge presser foot plate (3) extends to have a second mounting part (31) connected to the visible presser foot plate (2), and the second mounting part (31) extends out of the plate surface of the badge presser foot plate (3).

7. A sewing auxiliary device according to claim 6, characterized in that, The width of the second mounting part (31) is b, and the range of b is 0.5cm-1cm.

8. A sewing auxiliary device according to claim 7, characterized in that, The second mounting part (31) is rotatably mounted on the visible pressure foot plate (2).

9. A sewing auxiliary device according to claim 8, characterized in that, The visible presser foot plate (2) is provided with a groove (22), and the second mounting part (31) is provided with a protrusion (32) on the side near the fabric. The protrusion (32) is rotatably fitted into the groove (22).

10. A sewing auxiliary device according to claim 1, characterized in that, The visible pressure foot plate (2) is a visible acrylic plate.

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