Sewing template for preventing distortion of lower hem of shirt

Abstract

The utility model provides a sewing template for preventing distortion of a shirt lower hem, and relates to the technical field of sewing templates, the sewing template comprises a main body part and a plurality of hard elastic connecting parts, the main body part is in a long strip shape and is used for being attached to a cloth cover; the hard elastic connecting parts are thin and long, all the hard elastic connecting parts are installed or formed on one side of the main body part and are arranged at equal intervals in the length direction of the main body part, and the tail ends of all the hard elastic connecting parts are used for supporting cloth to form the outer contour of the lower hem of the shirt. The distance between every two adjacent hard elastic connecting parts is used for feeding a machine needle, and the distance is not larger than the needle pitch; wherein the hard elastic connecting part is configured to be aligned and limited with a cloth burr through a first track line of a flatcar and abut against the back face of the cloth to form a folded edge when the burr is folded by two circles. Therefore, the problems that existing edge folding sewing is prone to distortion and low in efficiency are solved.

Description

Technical Field

[0001] This utility model relates to the field of sewing template technology, and more specifically, to a sewing template for preventing twisting of shirt hems. Background Technology

[0002] The smoothness of the shirt hem and the neatness of the stitching are important indicators for evaluating shirt quality. As people's living standards improve, their demands for clothing also increase. To meet the needs of consumers, the materials and styles of shirts are constantly evolving. The shape of shirt hems is no longer simply straight or curved; there are also lace-like and irregular shapes. Current folding and rolling hem sewing methods generally involve first drawing lines and cutting the fabric, then overlocking the raw edges, and finally folding and pressing the fabric to the back to form the hem fold. The operator needs to make constant fine adjustments to this fold during sewing to ensure accurate hem shape and uniform fold width. This sewing process demands a high level of skill from the operator. Especially when sewing elastic or stiff fabrics, the fold is prone to skewing and bulging, resulting in an uneven hem that affects the shirt's appearance and comfort. Furthermore, when sewing curved or other non-straight hems, the position of the fold needs constant adjustment, making the sewing speed slow. Slight carelessness can easily lead to hem distortion, affecting the garment's texture. In addition, exposed raw edges on the back of the shirt can easily lead to loose threads, affecting the consumer's appearance and comfort. Utility Model Content

[0003] This utility model discloses a sewing template for preventing twisting of shirt hems. It has a simple structure and is easy to operate, aiming to improve the problems of easy twisting and low efficiency of existing hem sewing.

[0004] The present invention adopts the following solution:

[0005] A sewing template for preventing twisting of shirt hems, used to assist in sewing shirt hems, includes a main body and several rigid elastic connecting parts. The main body is elongated and fits against the fabric surface. The rigid elastic connecting parts are elongated and are each mounted or formed on one side of the main body and are equidistantly arranged along the length of the main body. The ends of each rigid elastic connecting part support the fabric to form the outer contour of the shirt hem. The spacing between two adjacent rigid elastic connecting parts is used for needle insertion, and the spacing is not greater than the stitch length. The rigid elastic connecting parts are configured to be aligned and limited with the raw edge of the fabric by the first track line of the flatbed sewing machine, and abut against the back of the fabric when the raw edge is folded twice to form a folded edge.

[0006] As a further improvement, each of the rigid elastic connecting parts is arranged perpendicularly to the main body and can be pulled out from the track line of the flatcar along the length direction of the rigid elastic connecting part.

[0007] As a further improvement, the length of the rigid elastic connection is not less than twice the width of the folded edge.

[0008] As a further improvement, the main body includes several main body units, each main body unit being connected end to end to form a long strip.

[0009] As a further improvement, one end of the main body unit is provided with a positioning part protruding, and the other end is provided with a positioning groove. The positioning part and the positioning groove engage with each other to limit the position in the circumferential direction.

[0010] As a further improvement, the two main units are fixed together by adhesive, welding or snap fasteners.

[0011] As a further improvement, the rigid elastic connection part is cylindrical, and a limiting part is provided at the end of the rigid elastic connection part, the size of which is larger than the size of the rigid elastic connection part.

[0012] As a further improvement, the limiting part is spherical.

[0013] As a further improvement, the rigid elastic connecting part is integrally injection molded with the main body.

[0014] As a further improvement, the main body is configured to be formed by interlacing warp and weft yarns, and the rigid elastic connecting part is configured as weft yarns extending outward along the main body.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] 1. Align the end of the rigid elastic connector with the raw edge and sew along the first track line to fix the rigid elastic connector to the fabric. The distance between two rigid elastic connectors is the needle's down position, and this distance is not greater than the stitch length. This restricts the rigid elastic connector between two stitches, and each stitch length includes at least one rigid elastic connector, so that the fabric in each stitch length can be supported by the rigid elastic connector. At the same time, the main body fits against the fabric surface and can flatten the fabric, further ensuring that the fabric is flat during the sewing process. Fold the raw edge, which is fixed to the rigid elastic connector, twice toward the back of the fabric, causing the sewing template to rotate synchronously (essentially a 360° rotation). This allows the end of the rigid elastic connector to abut against the back of the fabric, supporting it to form the hem outline. The folded edge is located above the rigid elastic connector and is constrained by the end of the connector and the first track line, resulting in a uniformly wide folded edge. Sewing along the folded edge along the second track line ensures a smooth shirt hem and prevents twisting. The rigid elastic connector can slightly sway when the needle abuts against it to ensure a smooth sewing process.

[0017] 2. No need to press out the folding pattern, reducing folding steps. The fabric is supported by the rigid elastic connector, preventing skewing, wrinkles, and bulges, ensuring a smooth fold. The fixed fold outline reduces the number of times the fold position needs to be adjusted, improving sewing efficiency. Furthermore, with the help of the sewing template, the raw edges are concealed inside the fold, ensuring a neat back of the fabric and preventing unraveling. This sewing template is suitable for making hems of various shapes; simply set the end outline of the rigid elastic connector to the desired shape. It is convenient and quick, requires low operator skill, and provides more precise and uniform dimensions, thereby reducing rework probability and increasing yield.

[0018] 3. The spacing between the rigid elastic connectors is no more than 1mm, and they can be pulled out from the track line of the flatbed machine along the length of the rigid elastic connectors. This allows the sewing template to be reused, reducing production costs.

[0019] 4. The main body consists of several main units, which are connected end to end to form a long strip. The separate design of the main body facilitates the replacement of parts of the main body, extends the service life of the main body, and further reduces the cost of sewing templates.

[0020] 5. A limiting part is provided at the end of the rigid elastic connector, and the size of the limiting part is larger than the size of the rigid elastic connector. The limiting part can prevent the rigid elastic connector from falling off the first flatbed track when folding the rough edge. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of one embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of another embodiment of the present invention;

[0024] Figure 3 and Figure 4 This is a schematic diagram of the main body unit of one embodiment of the present invention from different perspectives;

[0025] Figure 5 This is a schematic diagram of the first track line of the flatbed machine for the rough edge and the rigid elastic connection part in one embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the second track line of the flatbed machine for the folded edge and the rigid elastic connection part in one embodiment of this utility model;

[0027] Figure 7 This is a cross-sectional view of one embodiment of the present invention.

[0028] icon:

[0029] 1-Main body; 11-Main body unit; 111-Positioning part; 112-Positioning groove;

[0030] 2- Rigid elastic connecting part; 21- Limiting part;

[0031] 3-Fabric; 31-Front; 32-Back; 33-Raw edge; 34-Folded edge;

[0032] 4-The first trajectory line;

[0033] 5 - The second trajectory line. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] Example

[0036] Combination Figures 1 to 7This embodiment provides a sewing template for preventing twisting of shirt hems, used to assist in sewing shirt hems. It includes a main body 1 and several rigid elastic connecting parts 2. The main body 1 is elongated and fits against the fabric surface. The rigid elastic connecting parts 2 are elongated and are installed or formed on one side of the main body 1 and are equidistantly arranged along the length of the main body 1. The ends of each rigid elastic connecting part 2 are used to support the fabric 3 to form the outer contour of the shirt hem. The distance between two adjacent rigid elastic connecting parts 2 is used for the needle to go down, and the distance is not greater than the stitch length. The rigid elastic connecting parts 2 are configured to be aligned and limited with the raw edge 33 of the fabric 3 by the first track line 4 of the flatbed sewing machine, and abut against the back side 32 of the fabric 3 when the raw edge 33 is folded twice to form a folded edge 34.

[0037] For example, the hem shape is drawn on the fabric 3, and the fabric 3 is cut along the drawn line. First, the sewing template is placed on the front side 31 of the fabric, and the end of the rigid elastic connector 2 is aligned with the raw edge 33. Then, the first track line 4 is sewn flat to fix the rigid elastic connector 2 to the fabric 3. The distance between the two rigid elastic connectors 2 is the needle's down position, and the distance is not greater than the stitch length, thereby restricting the rigid elastic connector between the two stitches. At least one rigid elastic connector 2 is included in each stitch length, so that the fabric 3 in each stitch length can be supported by the rigid elastic connector 2. At the same time, the main body 1 is in contact with the fabric surface and can flatten the fabric 3, further ensuring that the fabric 3 is flat during the sewing process. The raw edge 33, fixed to the rigid elastic connector 2, is folded twice towards the back 32 of the fabric 3, causing the sewing template to rotate synchronously (equivalent to a 360° rotation). At this point, the end of the rigid elastic connector 2 abuts against the back 32 of the fabric 3, supporting the fabric 3 to form the hem outline. The folded edge 34 is located above the rigid elastic connector 2 and is constrained by the end of the rigid elastic connector 2 and the first track line 4, thus forming a folded edge 34 of uniform width. The second track line 5 is then sewn along the folded edge 34 to ensure the flatness of the shirt hem and prevent twisting. When the needle abuts against the rigid elastic connector 2, the rigid elastic connector 2 can slightly sway to ensure smooth sewing. The outline of the end of the rigid elastic connector 2 can be formed by drawing and trimming, without specific limitations.

[0038] It is worth mentioning that the sewing template in this embodiment eliminates the need for pressing out the folding pattern, reducing the folding steps. The fabric 3 is supported by the rigid elastic connector 2, preventing skewing, wrinkles, and bulges, ensuring the flatness of the folded edge 34. Simultaneously, the fixed outline of the folded edge 34 reduces the number of adjustments needed, improving sewing efficiency. Furthermore, under the action of the sewing template, the raw edge 33 is concealed within the folded edge 34, ensuring a neat back surface 32 of the fabric and preventing the raw edge 33 from unraveling. This sewing template is suitable for making hems of various shapes; simply setting the end outline of the rigid elastic connector 2 to the desired shape is sufficient. It is convenient and quick, requires low operator skill, and provides more precise and uniform dimensions, thereby reducing rework probability and increasing yield.

[0039] In a preferred embodiment, the spacing between the rigid elastic connecting parts 2 is no greater than 1 mm. Each rigid elastic connecting part 2 is arranged perpendicularly to the main body 1 and can be pulled out from the track line of the flatbed carriage along the length direction of the rigid elastic connecting part 2. This allows for the repeated use of the sewing template and reduces production costs.

[0040] Furthermore, the length of the rigid elastic connecting part 2 is not less than twice the width of the folded edge 34, so that the rigid elastic connecting part 2 can still be exposed on the fabric 3 after the folded edge 34 is formed, making it convenient for the sewing personnel to observe and ensuring the sewing effect.

[0041] Based on the above embodiments, in an optional embodiment of the present invention, referring to... Figures 2 to 4The main body 1 includes several main units 11, which are connected end to end to form an elongated shape. This modular design of the main body 1 facilitates partial replacement, extends its service life, and further reduces the cost of the sewing template. Specifically, one end of each main unit 11 has a protruding positioning part 111, and the other end has a recessed positioning groove 112. The positioning part 111 and the positioning groove 112 engage to limit circumferential positioning. Two main units 11 are fixed together by adhesive, welding, or snap-fit. Welding can be ultrasonic welding, and adhesive fixing involves applying adhesive to the positioning part 111 and the groove, inserting the positioning part 111 into the positioning groove 112 of the previous main unit 11 to connect the two main units 11. Alternatively, a snap-fit ​​connection can be used. For example, a slot is provided on the side wall of the positioning part 111, and a snap-fit ​​protrudes from the inner wall of the positioning groove 112. The subsequent main body unit 11 is pressed into the positioning groove 112 of the previous main body unit 11 from top to bottom, so that the snap-fit ​​engages with the slot, thereby achieving a detachable connection of the main body unit 11. In one embodiment, the rigid elastic connecting part 2 is integrally injection molded with the main body part 1, wherein the injection molding material can be POM. The rigid elastic connecting part 2 is cylindrical, and its diameter is no more than 0.5mm, thereby ensuring the rigidity and resilience of the rigid elastic connecting part 2. The cylindrical shape can ensure that the rigid elastic connecting part 2 can swing slightly during needle insertion, avoiding interference with the needle.

[0042] In another embodiment, the end of the rigid elastic connecting part 2 is provided with a limiting part 21, the size of which is larger than the size of the rigid elastic connecting part 2. Preferably, the limiting part 21 is spherical. The limiting part 21 prevents the rigid elastic connecting part 2 from falling off the first flatbed track when the rough edge 33 is folded.

[0043] In other embodiments, the main body 1 is formed by interlacing warp and weft yarns, and the rigid elastic connecting part 2 is formed by weft yarns extending outward along the main body 1. The warp and weft yarns are made from horsehair and cotton or polyester-cotton blends, but are not limited to these; they can also be made from carbon fiber materials. The weaving process is prior art and will not be described further here.

[0044] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. A sewing template for preventing twisting of shirt hems, used to assist in sewing shirt hems, characterized in that, The shirt includes a main body and several rigid elastic connecting parts. The main body is elongated and is used to fit the fabric. The rigid elastic connecting parts are elongated and are mounted or formed on one side of the main body and are equidistantly arranged along the length of the main body. The ends of the rigid elastic connecting parts are used to support the fabric to form the outer contour of the shirt hem. The distance between two adjacent rigid elastic connecting parts is used for the needle to make a stitch, and the distance is not greater than the stitch length. The rigid elastic connecting part is configured to be aligned and limited with the raw edge of the fabric by the first track line of the flatbed, and to abut against the back of the fabric when the raw edge is folded twice to form a folded edge.

2. The sewing template for preventing twisting of shirt hems according to claim 1, characterized in that, Each of the rigid elastic connecting parts is arranged perpendicularly to the main body and can be pulled out from the track line of the flatcar along the length direction of the rigid elastic connecting part.

3. The sewing template for preventing twisting of shirt hems according to claim 1, characterized in that, The length of the rigid elastic connection is not less than twice the width of the folded edge.

4. The sewing template for preventing twisting of shirt hems according to claim 1, characterized in that, The main body comprises several main units, which are connected end to end to form a long strip.

5. The sewing template for preventing twisting of shirt hems according to claim 4, characterized in that, One end of the main body unit has a protruding positioning part, and the other end has a recessed positioning groove. The positioning part and the positioning groove engage with each other to limit the position in the circumferential direction.

6. The sewing template for preventing twisting of shirt hems according to claim 5, characterized in that, The two main units are fixed together by adhesive, welding or snap fasteners.

7. The sewing template for preventing twisting of shirt hems according to claim 1, characterized in that, The rigid elastic connector is cylindrical, and a limiting part is provided at the end of the rigid elastic connector. The size of the limiting part is larger than the size of the rigid elastic connector.

8. The sewing template for preventing twisting of shirt hems according to claim 7, characterized in that, The limiting part is spherical.

9. The sewing template for preventing twisting of shirt hems according to any one of claims 3-8, characterized in that, The rigid elastic connecting part is integrally injection molded with the main body.

10. The sewing template for preventing twisting of a shirt hem according to any one of claims 1-3, characterized in that, The main body is formed by interlacing warp and weft yarns, and the rigid elastic connecting part is formed by weft yarns extending outward along the main body.

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