Suturing auxiliary device
By combining the design of the lower pressure plate, upper pressure plate, guide needle structure and positioning structure of the sewing auxiliary device, the problem of inconsistent sewing threads on fabrics with uneven thickness in hand sewing is solved, thereby improving the stability and precision of the sewing thread and increasing sewing efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陈建龙
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-19
AI Technical Summary
In traditional hand sewing, fabrics of uneven thickness make it difficult to ensure the consistency and stability of the stitches. Existing sewing aids have limited functions and cannot simultaneously fix the fabric and guide the stitches, resulting in low efficiency and fluctuating product quality.
A sewing aid device was designed, comprising a lower pressure plate, an upper pressure plate, a guide needle structure, and a positioning structure. The upper and lower pressure plates work together to fix the fabric, the guide needle structure guides the sewing thread, and the positioning structure ensures that the fabric edge and the sewing thread are parallel and the distance is constant, thereby improving sewing accuracy and efficiency.
It effectively holds fabrics of different thicknesses in place, ensuring equal stitch spacing, parallel fabric edges and seams, improving the aesthetics and quality stability of sewn products, and enhancing ease of operation and sewing efficiency.
Smart Images

Figure CN224258949U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of suture assistive tools, specifically a suture assistive device. Background Technology
[0002] In the fields of garment manufacturing, home furnishing sewing, and leather crafts, hand sewing techniques, with their unique flexibility and ability to control details, have always been an important processing method. Whether creating fashionable clothing with different styles, adding warmth and beauty to the home environment with soft furnishings, or showcasing exquisite leather products, hand sewing can precisely meet diverse design needs, endowing products with unique quality and charm, and occupying a stable and crucial position in the industry.
[0003] In traditional hand sewing, the operator's experience is mainly relied upon to control the stitch length and fabric position. When dealing with fabrics of uneven thickness, such as thin fabrics and multi-layered fabrics, it is difficult for the operator to ensure the consistency and stability of the stitches. In addition, although some existing sewing aids have simple fabric fixing functions, their functions are limited and cannot simultaneously address the two key aspects of fabric fixing and stitch guidance. Furthermore, fabric edge positioning often relies on visual inspection or temporary marking, which cannot quickly and repeatedly achieve parallel alignment and constant distance between the stitches and the fabric edge. Especially in batch sewing or complex processes, such as edge decorative lines or multi-piece splicing, this positioning method leads to low efficiency and fluctuations in product quality.
[0004] Therefore, this application provides a suture assist device to solve the above-mentioned problems. Utility Model Content
[0005] This application provides a sewing aid device, which aims to solve the problems mentioned in the background art, such as the reliance of operators' experience to control the stitch length and fabric position in existing manual sewing, the difficulty in ensuring consistent and stable sewing when dealing with fabrics of uneven thickness, the limited functionality of some existing sewing aids, the reliance on visual inspection or temporary marking for fabric edge positioning, the low efficiency and fluctuations in product quality in batch sewing or complex processes.
[0006] To achieve the above objectives, this application provides the following technical solution: a sewing auxiliary device, comprising a lower pressure plate, an upper pressure plate disposed on the lower pressure plate for pressing or releasing fabric on the lower pressure plate, and a guide needle structure disposed at the edges of the lower pressure plate and the upper pressure plate for guiding the sewing thread and making the stitch spacing equal;
[0007] The upper pressure plate has a positioning structure on its edge away from the guide needle structure for positioning the fabric edge, ensuring that the fabric edge and the seam are parallel and at a constant distance. The cooperation of the upper and lower pressure plates firmly fixes the fabric, preventing it from shifting during sewing. Simultaneously, the guide needle structure guides the seam, keeping the stitch length equal, improving the neatness and aesthetics of the seam. The positioning structure ensures the parallelism and constant distance between the fabric edge and the seam, enhancing sewing precision and efficiency, resulting in sewn products with a neat appearance and stable quality, suitable for sewing fabrics of varying thicknesses.
[0008] Preferably, in order to achieve the opening and closing of the upper pressure plate, the lower pressure plate has limit grooves at both ends corresponding to one side of the upper pressure plate. A connecting shaft for longitudinal sliding and rotating within the limit grooves is fixedly installed on the upper pressure plate. The combined design of the limit grooves and the connecting shaft allows the upper pressure plate to achieve flexible opening and closing actions by sliding and rotating longitudinally within the limit grooves. This makes it easy for operators to operate the upper pressure plate, whether placing fabric, adjusting the fabric position, or removing the fabric after sewing. This greatly improves the convenience and flexibility of operation. At the same time, the limit grooves can restrict the horizontal movement of the connecting shaft to ensure stability when closing the fabric.
[0009] Preferably, in order to facilitate the operation of the upper pressure plate, a lever block is fixedly provided at the position of the upper pressure plate corresponding to the connecting shaft for lifting the upper pressure plate and releasing the upper pressure plate; the design of the lever block utilizes the lever principle, allowing the operator to operate the lifting and pressing of the upper pressure plate more quickly, reducing the difficulty of operation and improving the efficiency of operation.
[0010] Preferably, to facilitate thread guidance, the guide needle structure includes a first guide needle groove and a second guide needle groove symmetrically arranged on both sides of the lower and upper pressure plates and linearly distributed. The first guide needle groove and the second guide needle groove on the lower and upper pressure plates are arranged in a one-to-one correspondence. The one-to-one correspondence of the first guide needle groove and the second guide needle groove provides a clear channel for the thread, allowing the thread to be sewn along a predetermined path, thereby ensuring the consistency of stitch length and the neatness of the thread, improving the quality and aesthetics of the sewing, and reducing defects caused by irregular stitches.
[0011] Preferably, to improve sewing efficiency and precision, the positioning structure includes a first and a second graduated groove symmetrically arranged on the other two sides of the upper pressure plate and linearly distributed. The combination of the first and second graduated grooves provides the operator with a clear positioning reference. The operator can align the edge of the fabric with the corresponding first or second graduated groove on the upper pressure plate to ensure the straightness of the fabric in the horizontal direction, thereby improving sewing precision and efficiency. At the same time, when sewing, if the edge of the fabric is placed in the corresponding first or second graduated groove, the stitch distance can be kept constant, resulting in uniform product specifications and stable quality.
[0012] Preferably, to facilitate quick identification and alignment, multiple scale grooves one and multiple scale grooves two located on the same side of the upper pressure plate are distributed at intervals, and the scale grooves one and two have different depths. The design of scale grooves one and two having different depths and being distributed at intervals on the same side allows operators to quickly and accurately identify and match the scale grooves one or two on the other side based on the depth difference, significantly improving operating efficiency and reducing operating difficulty. At the same time, it ensures that the fabric remains parallel during processing, effectively reducing processing errors, ensuring product specifications are consistent, and improving sewing quality.
[0013] Preferably, in order to further increase the pressure on the fabric, anti-slip strips are fixedly provided on the lower pressure plate at the inner positions corresponding to the first and second needle guide grooves, in a linear distribution to prevent fabric displacement; when the upper pressure plate presses the fabric, the anti-slip strips can contact the fabric surface, thereby increasing the friction between the lower pressure plate and the fabric, so that even if the fabric is subjected to the tension of the sewing thread during the sewing process, it is not easy to shift, further ensuring the accuracy and stability of sewing and improving the sewing quality.
[0014] This sewing aid device, through the combined design of a lower pressure plate, an upper pressure plate, a guide needle structure, and a positioning structure, can firmly fix fabrics of different thicknesses, effectively preventing fabric shifting during sewing. At the same time, it precisely guides the sewing thread to ensure equal stitch spacing, guaranteeing that the fabric edge and the sewing thread are parallel and at a constant distance, thereby improving sewing accuracy and efficiency, and resulting in sewn products with a neat appearance and stable quality.
[0015] This suture assist device utilizes the lever principle through the design of the lever block, allowing operators to raise and lower the upper pressure plate more quickly, reducing the difficulty of operation and improving operational efficiency.
[0016] This sewing aid device, through the design of anti-slip strips, increases the friction between the pressure plate and the fabric, making it less prone to shifting during sewing, even when the fabric is subjected to tension from the sewing thread. This further ensures the accuracy and stability of the sewing and improves the quality of the sewing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a suture assist device in a compressed state.
[0018] Figure 2 This is a schematic diagram of the structure of the lower pressure plate in a suture assist device;
[0019] Figure 3 This is a schematic diagram of the upper pressure plate in a suture assist device;
[0020] Figure 4 This is a schematic diagram of a suture assist device in the open state.
[0021] In the picture:
[0022] 1. Lower pressure plate; 11. Limiting groove;
[0023] 2. Upper pressure plate; 21. Connecting shaft; 22. Lever block;
[0024] 3. Guide needle structure; 31. Guide needle groove one; 32. Guide needle groove two;
[0025] 4. Positioning structure; 41. Scale groove one; 42. Scale groove two;
[0026] 5. Anti-slip strips. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example
[0028] This embodiment provides a suture assist device, such as... Figures 1-3 As shown, the sewing auxiliary device includes a lower pressure plate 1, an upper pressure plate 2 disposed on the lower pressure plate 1 for pressing or releasing the fabric onto the lower pressure plate 1, and a needle guide structure 3 disposed at the edges of the lower pressure plate 1 and the upper pressure plate 2 for guiding the sewing thread and ensuring equal stitch spacing; a positioning structure 4 is disposed on the edge of the upper pressure plate 2 away from the needle guide structure 3 for positioning the edge of the fabric and ensuring that the edge of the fabric and the sewing thread are parallel and at a constant distance.
[0029] In use, first place fabrics of different thicknesses on the lower pressure plate 1. Then, apply downward pressure to the upper pressure plate 2, making it fit tightly against the lower pressure plate 1. The pressure between the two plates firmly clamps the fabric, preventing it from shifting during subsequent sewing. Simultaneously, when fixing the fabric, the operator can use the positioning structure 4 to guide the fabric edge and the edge of the upper pressure plate 2 where the guide needle structure 3 is located, ensuring the fabric edge and the seam are parallel. After fixing the fabric, the operator then uses the guide needle structure 3 to guide the seam through each corresponding guide needle structure 3 sequentially, allowing the seam to move in a predetermined direction and spacing, thus ensuring equal stitch spacing and proper seam alignment. Neatness enhances the aesthetics and quality of sewing. When a portion of the stitching is completed and the fabric needs to be adjusted to the next stitch or removed, the operator lifts the upper pressure plate 2, separating it from the lower pressure plate 1. This facilitates adjusting or removing the fabric from the lower pressure plate 1. When it's necessary to adjust the fabric to continue sewing or to sew the next piece, the positioning structure 4 guides the fabric edge to a position parallel to the initial stitch and the edge of the upper pressure plate 2 where the guide needle structure 3 is located. This not only ensures the fabric edge remains parallel to the stitch but also maintains a constant sewing distance, resulting in uniform product specifications, improved sewing precision and standardization, and ultimately, enhanced overall quality of the sewn products.
[0030] Specifically, the lower pressure plate 1 has limit grooves 11 at both ends corresponding to the upper pressure plate 2. The upper pressure plate 2 is fixedly installed with a connecting shaft 21 for longitudinal sliding and rotating in the limit groove 11. The upper pressure plate 2 is fixedly provided with a lever block 22 for lifting the upper pressure plate 2 and releasing the upper pressure plate 2 at the position corresponding to the connecting shaft 21.
[0031] When it is necessary to fix fabrics of different thicknesses, the operator places the fabric on the lower pressure plate 1 and then presses down the upper pressure plate 2. At this time, the connecting shaft 21 slides downward in the limiting groove 11. As the connecting shaft 21 slides downward in the limiting groove 11, the upper pressure plate 2 gradually approaches and fits tightly against the lower pressure plate 1, thereby firmly pressing the fabrics of different thicknesses. The limiting groove 11 can restrict the horizontal movement of the connecting shaft 21 to ensure the stability when pressing the fabric. When the sewing is completed and the fabric needs to be loosened, the operator only needs to press the lever block 22. According to the lever principle, the lever block 22 will drive the upper pressure plate 2 to move upward and rotate around the connecting shaft 21, so that the upper pressure plate 2 is lifted, and the fabric can be loosened and easily removed.
[0032] Furthermore, the guide needle structure 3 includes a guide needle groove 31 and a guide needle groove 32 that are symmetrically arranged on both sides of the lower pressure plate 1 and the upper pressure plate 2 and are linearly distributed. The guide needle groove 31 and the guide needle groove 32 on the lower pressure plate 1 and the upper pressure plate 2 are arranged in a one-to-one correspondence.
[0033] During the sewing operation, the operator sequentially passes the thread through the corresponding needle guide groove 31 or needle guide groove 32 on the lower pressure plate 1 and the upper pressure plate 2. Since the needle guide grooves 31 or needle guide groove 32 on the lower pressure plate 1 and the upper pressure plate 2 are linearly distributed and correspond one-to-one, the thread can only move along the direction defined by the needle guide groove 31 or needle guide groove 32 when passing through it. Each time the thread passes through a needle guide groove 31 or needle guide groove 32, it is equivalent to completing a stitch, thus ensuring that the stitch spacing of each stitch is equal, making the thread neatly arranged and evenly spaced on the fabric, greatly improving the aesthetics and quality of the sewing, and ensuring the uniformity of the sewn products.
[0034] It should be noted that limit blocks are fixedly installed at both ends of one side of the lower pressure plate 1 corresponding to the guide needle groove 32. The limit groove 11 is set in the limit block. When the edge of the fabric placed on the lower pressure plate 1 is moved to one side of the guide needle groove 32, the edge of the fabric will remain parallel under the limiting and blocking of the two limit blocks, thereby ensuring that the edge of the fabric moved to one side of the guide needle groove 32 remains parallel.
[0035] Furthermore, the positioning structure 4 includes scale groove 1 41 and scale groove 2 42 symmetrically arranged on the other two sides of the upper pressure plate 2 and linearly distributed; the multiple scale groove 1 41 and multiple scale groove 2 42 located on the same side of the upper pressure plate 2 are distributed at intervals, and the scale groove 1 41 and scale groove 2 42 have different depths.
[0036] When the operator places the fabric on the lower pressure plate 1 and presses down the upper pressure plate 2, they first align the edge of the fabric with the graduated groove 41 or graduated groove 42 on both sides of the upper pressure plate 2 to achieve precise horizontal positioning of the fabric. Since the multiple graduated grooves 41 and 42 on the same side of the upper pressure plate 2 are spaced apart and have different depths, the operator can quickly identify and match the graduated grooves 41 or 42 on the other side based on the depth difference during the fabric positioning process. That is, the shallower graduated groove 41 corresponds to the shallower groove, and the deeper graduated groove 42 corresponds to the deeper groove. This matching method ensures that the fabric remains parallel during processing, improving the overall quality of the sewn products. At the same time, when sewing later, when placing the fabric with the sewing thread, simply place the fabric in the position corresponding to the graduated groove 41 or 42 before sewing to ensure a constant sewing thread distance, making the sewn products uniform in specifications and stable in quality. Example
[0037] Unlike Example 1, as Figure 2 and Figure 4As shown, in order to further increase the pressure on the fabric, anti-slip strips 5 are fixedly installed on the inner side of the lower pressure plate 1 corresponding to the needle guide groove 31 and the needle guide groove 32, which are linearly distributed to prevent the fabric from shifting. When the upper pressure plate 2 presses the fabric, the anti-slip strips 5 can contact the fabric surface, thereby increasing the friction between the lower pressure plate 1 and the fabric. This makes it less likely for the fabric to shift during the sewing process, even if the fabric is subjected to the tension of the sewing thread. This further enhances the pressing effect of the upper pressure plate 2 on the fabric, effectively preventing the fabric from sliding during the sewing process, ensuring the accuracy and stability of the sewing, and improving the sewing quality.
[0038] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A suture assist device, characterized in that: It includes a lower pressure plate (1), an upper pressure plate (2) disposed on the lower pressure plate (1) for pressing or releasing the fabric on the lower pressure plate (1), and a guide needle structure (3) disposed at the edges of the lower pressure plate (1) and the upper pressure plate (2) for guiding the sewing thread and making the stitch distance equal; a positioning structure (4) is provided on the side edge of the upper pressure plate (2) away from the guide needle structure (3) for positioning the edge of the fabric and making the edge of the fabric and the sewing thread parallel and the distance constant.
2. The suture assist device according to claim 1, characterized in that: The lower pressure plate (1) has limit grooves (11) at both ends corresponding to the upper pressure plate (2) on one side. The upper pressure plate (2) is fixedly installed with a connecting shaft (21) for longitudinal sliding and rotation in the limit groove (11).
3. The suture assist device according to claim 2, characterized in that: The upper pressure plate (2) is fixedly provided with a lever block (22) at the position corresponding to the connecting shaft (21) for lifting the upper pressure plate (2) and releasing the upper pressure plate (2).
4. The suture assist device according to claim 1, characterized in that: The guide needle structure (3) includes a guide needle groove 1 (31) and a guide needle groove 2 (32) symmetrically arranged on both sides of the lower pressure plate (1) and the upper pressure plate (2) and linearly distributed. The guide needle groove 1 (31) and the guide needle groove 2 (32) on the lower pressure plate (1) and the upper pressure plate (2) are arranged one-to-one.
5. The suture assist device according to claim 4, characterized in that: The positioning structure (4) includes a first (41) and a second (42) scale grooves symmetrically arranged on the other two sides of the upper pressure plate (2) and linearly distributed.
6. The suture assist device according to claim 5, characterized in that: Multiple scale grooves one (41) and multiple scale grooves two (42) located on the same side of the upper pressure plate (2) are distributed at intervals, and the scale grooves one (41) and the scale grooves two (42) have different depths.
7. The suture assist device according to claim 4, characterized in that: On the lower pressure plate (1), anti-slip strips (5) are fixedly provided at the inner positions of the first guide needle groove (31) and the second guide needle groove (32) in a linear distribution to prevent the fabric from shifting.