Automatic sewing template for single-opening zipper bag
By designing an automatic sewing template for single-line zipper pockets, the problems of inaccurate pocket position and size and non-square corners of the pocket insert strip in zipper pockets were solved. This enabled accurate sewing of the pocket insert strip, zipper, and pocket fabric, reducing operational difficulty and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU LAOSAN GROUP CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-12
Smart Images

Figure CN224350905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of garment manufacturing technology, and in particular to an automatic sewing template for single-line zipper pockets. Background Technology
[0002] Zippered pockets are commonly found in casual jackets and trousers, and are also widely used in knitted and woven fabrics. The sewing process for zippered pockets involves many steps, making it difficult to ensure accurate pocket placement and size. The pocket trim may not be square, and the zipper and fabric may not be perfectly aligned. This is especially true when sewing highly elastic or knitted fabrics, making it difficult to guarantee the product's appearance quality, resulting in a complex and inefficient process.
[0003] Chinese patent CN 220619364 U discloses a sewing template for a pocket-shaped structure, comprising: a base plate, a lower cover plate, two first pressure plates, two second pressure plates, and two upper cover plates. One end of the lower cover plate is hinged to the base plate along a first direction. One end of each of the two first pressure plates is hinged to the base plate along the first direction. One end of each of the two second pressure plates is hinged to the lower cover plate along a second direction. One end of each of the two upper cover plates is hinged to the base plate along the first direction. The base plate has two first sewing grooves, and the lower cover plate has two second sewing grooves. Each first pressure plate is positioned close to a second pressure plate. Each first pressure plate and a second pressure plate are joined along the second direction to form a third sewing groove. Each upper cover plate has a fourth sewing groove. This invention provides a sewing template for pocket-shaped structures, particularly suitable for sewing S-shaped pockets, reducing the difficulty of sewing pockets and improving sewing efficiency.
[0004] However, this application cannot achieve one-time sewing of the pocket insert, zipper and pocket fabric, so a single-line zipper pocket cutting automatic sewing template is needed to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to ensure the accurate position and size of the pocket, the square and beautiful corners of the pocket trim, the smoothness of the zipper and the fabric, and to achieve one-time sewing of the pocket trim, zipper and pocket fabric, thereby reducing technical difficulty, reducing labor costs and improving production efficiency.
[0006] To address the aforementioned technical problems, an automatic sewing template for single-line zipper pocket welts is proposed; this is achieved through the following technical solution:
[0007] An automatic sewing template for a single-line zipper pocket includes a base plate, a pocket insert strip cover plate, a pocket fabric cover plate, a cover plate, and a reinforcing plate. The reinforcing plate is connected to one side of the base plate surface that can be opened and closed. The pocket insert strip cover plate is connected to the side of the base plate surface away from the reinforcing plate that can be opened and closed. The pocket fabric cover plate is connected to the side of the base plate surface close to the reinforcing plate that can be opened and closed. The pocket fabric cover plate is located above the pocket insert strip cover plate. The cover plate is located above the pocket fabric cover plate. The side of the cover plate close to the reinforcing plate is connected to the reinforcing plate. The base plate, the pocket fabric cover plate, and the cover plate are vertically corresponding to an upper thread groove group and a lower thread groove group. The pocket insert strip cover plate is provided with an insert strip groove. The insert strip groove (21) is vertically corresponding to the upper thread groove group and the lower thread groove group used for sewing limit.
[0008] By opening the piping groove, upper thread groove group, and lower thread groove group at corresponding positions, the pocket piping, zipper, and pocket fabric are sewn together in one go, ensuring that the zipper and fabric are flat. The piping groove is opened according to the width of the piping for the single-line zipper pocket, so that the automatic sewing machine can sew in the piping groove, ensuring that the four corners of the pocket piping are square and beautiful. The length of the zipper thread groove and the pocket piping is set according to the pocket size to ensure accurate pocket size.
[0009] In a preferred embodiment of the present invention, a first upper zipper groove and a first lower zipper groove are respectively provided on both sides of the base plate surface. The two sets of first upper zipper grooves and first lower zipper grooves are symmetrical about the center line of the base plate. Zipper double-sided adhesive is provided at the left and right ends of the two sets of first upper zipper grooves and first lower zipper grooves. An upper zipper sponge strip is arranged parallel above the first upper zipper groove, and a lower zipper sponge strip is arranged parallel below the first lower zipper groove. The upper zipper sponge strip, lower zipper sponge strip and zipper double-sided adhesive ensure accurate placement of the zipper.
[0010] In a preferred embodiment of the present invention, two insert grooves are provided on the surface of the bag insert cover. The two insert grooves are symmetrical about the center line of the bag insert cover. Double-sided adhesive tape for the insert groove is provided on the surface of the bag insert cover close to the upper edge of the insert groove. A sponge strip for the insert groove is provided close to the upper edge of the double-sided adhesive tape for the insert groove. The sponge strip for the insert groove ensures that the bag insert is placed in an accurate position.
[0011] In a preferred embodiment of the present invention, the surface of the pocket cover is provided with a second upper zipper groove and a second lower zipper groove that correspond one-to-one with the first upper zipper groove and the first lower zipper groove on the bottom plate. The surface of the pocket cover is also provided with a pocket position marking line, which is located between the second upper zipper groove and the second lower zipper groove. By providing a pocket position marking line on the pocket cover, the position of the trouser piece can be determined, ensuring that the pocket position is accurate.
[0012] In a preferred embodiment of the present invention, the cover plate has a third upper zipper groove and a third lower zipper groove that correspond one-to-one with the first upper zipper groove and the first lower zipper groove on the base plate, to ensure accurate sewing position of the sewing machine.
[0013] In a preferred embodiment of the present invention, the first upper zipper groove, the second upper zipper groove, and the third upper zipper groove constitute an upper groove group, and the first lower zipper groove, the second lower zipper groove, and the third lower zipper groove constitute a lower groove group. The upper groove group and the lower groove group are vertically aligned. By vertically aligning the first upper zipper groove, the second upper zipper groove, and the third upper zipper groove, and vertically aligning the first lower zipper groove, the second lower zipper groove, and the third lower zipper groove, a single stitching is achieved.
[0014] In a preferred embodiment of the present invention, the top of the reinforcing plate and the base plate are provided with three template slots, which are then secured to the locking posts of the automatic sewing machine to enhance the stability of the template during the operation of the automatic sewing machine.
[0015] In a preferred embodiment of the present invention, the lengths of the upper zipper sponge strip and the lower zipper sponge strip are greater than the first upper zipper groove and the first lower zipper groove, and the length of the double-sided adhesive tape in the insert groove is greater than the insert groove, ensuring the stability of the zipper and the pocket insert.
[0016] In a preferred embodiment of the present invention, the upper edge of the insert groove is aligned with the upper edge of the upper thread groove group to ensure that the sewing needle can pass through the insert groove.
[0017] The advantages of this utility model compared with the prior art are:
[0018] By setting the insert groove, upper thread groove group and lower thread groove group in the corresponding positions, the pocket insert, zipper and pocket fabric can be sewn together in one go and the zipper and fabric can be made flat, reducing the difficulty of operation and improving production efficiency.
[0019] The insert groove is set according to the width of the insert strip of the single-line zipper pocket, so that the automatic sewing machine can sew in the insert groove to ensure that the four corners of the pocket insert are square and beautiful.
[0020] This invention sets the length of the zipper groove and the pocket insert strip according to the pocket size to ensure accurate pocket size; and sets a pocket position marking line on the pocket fabric cover to determine the position of the trouser piece to ensure accurate pocket position.
[0021] This invention uses double-sided adhesive tape on the zipper to fix the zipper position and double-sided adhesive tape on the insert groove to fix the position of the pocket insert, thus stabilizing the positions of the zipper and pocket insert during sewing.
[0022] This invention ensures accurate placement of the zipper and pocket insert by setting an upper zipper sponge strip, a lower zipper sponge strip, and an insert groove sponge strip. Attached Figure Description
[0023] Figure 1 The figure shown is a three-dimensional structural schematic diagram of this utility model;
[0024] Figure 2The figure shown is a three-dimensional structural diagram of the cover plate of this utility model.
[0025] Figure 3 The diagram shown is a structural schematic of the back of the pocket insert cover of this utility model when it is opened.
[0026] Figure 4 The diagram shows the base plate and fixing plate of this utility model.
[0027] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. First upper zipper groove; 12. First lower zipper groove; 13. Zipper double-sided adhesive; 14. Upper zipper sponge strip; 15. Lower zipper sponge strip; 2. Pocket insert cover plate; 21. Insert groove; 22. Insert groove double-sided adhesive; 23. Insert groove sponge strip; 3. Pocket fabric cover plate; 31. Second upper zipper groove; 32. Second lower zipper groove; 33. Pocket position marking line; 4. Cover plate; 41. Third upper zipper groove; 42. Third lower zipper groove; 5. Reinforcing plate; 6. Template snap. Detailed Implementation
[0028] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be described in detail below. Example
[0029] Specifically, in this embodiment, the surface of the base plate 1 is used as the base surface, and a rectangular coordinate system is set up with the position of the template slot 6 on the base plate 1 as the upper part. In this embodiment, the pocket with a sewing length of 16.0cm is made.
[0030] like Figure 1 , 2 As shown in Figures 3 and 4, an automatic sewing template for a single-line zipper pocket includes a base plate 1, a pocket insert strip cover plate 2, a pocket fabric cover plate 3, a cover plate 4, and a reinforcing plate 5. The reinforcing plate 5 is attached to the upper end of the base plate 1. The upper edge and left and right sides of the reinforcing plate 5 coincide with the upper edge and left and right sides of the base plate 1. The pocket fabric cover plate 3 is attached to the upper surface of the base plate 1 near the reinforcing plate 5 and can be opened and closed. The pocket insert strip cover plate 2 is attached to the upper surface of the base plate 1 away from the reinforcing plate 5 and can be opened and closed. The pocket insert strip cover plate 2 is folded towards the reinforcing plate 5, and the pocket fabric cover plate 3 is folded towards the insert strip cover plate. The pocket insert strip cover plate 2 is stacked on the base plate 1, and the pocket fabric cover plate 3 is stacked on the pocket insert strip cover plate 2.
[0031] A cover plate 4 is provided on the top of the bag cover plate 3, which can be opened and closed. The side of the cover plate 4 near the reinforcing plate 5 is attached to the reinforcing plate 5 with kraft paper adhesive. The bag cover plate 3 and the cover plate 4 are vertically correspondingly provided with upper and lower stitching groove groups. The bag insert strip cover plate 2 is provided with an insert strip groove 21. The upper edge of the insert strip groove 21 is aligned with the upper edge of the upper stitching groove group. The bag insert strip, zipper and bag cover are sewn together in one go through the corresponding upper stitching groove group, insert strip groove 21 and lower stitching groove group, which ensures that the zipper and the fabric are flat, reduces the difficulty of operation and improves production efficiency.
[0032] like Figure 4 As shown, in this embodiment, the base plate 1 is a transparent plastic plate with a length of 77.5cm, a width of 50.5cm, and a thickness of 1.5mm. A first upper zipper groove 11 and a first lower zipper groove 12 are respectively opened on both sides of the upper surface of the base plate 1. The two sets of first upper zipper grooves 11 and first lower zipper grooves 12 are symmetrical about the vertical center line of the base plate 1. The first upper zipper groove 11 and the first lower zipper groove 12 are the same size, with a length of 16.0cm and a width of 0.4cm. The first upper zipper groove 11 and the first lower zipper groove 12 are parallel and 0.7cm apart. A 1.0cm wide double-sided zipper tape 13 for fixing the zipper is attached to both ends of the first upper zipper groove 11 and the first lower zipper groove 12.
[0033] The upper surface of the base plate 1 is also provided with two upper zipper sponge strips 14 and two lower zipper sponge strips 15. The two upper zipper sponge strips 14 are respectively positioned above the two first upper zipper grooves 11 and are 0.5cm away from the first upper zipper grooves 11. The two lower zipper sponge strips 15 are respectively positioned below the two first lower zipper grooves 12 and are 0.5cm away from the first lower zipper grooves 12. The left and right ends of the upper zipper sponge strips 14 and lower zipper sponge strips 15 extend 2.0cm beyond the first upper zipper grooves 11 and the first lower zipper grooves 12, respectively. The width of the upper zipper sponge strips 14 and lower zipper sponge strips 15 is 0.5cm. The upper zipper sponge strips 14 and lower zipper sponge strips 15 limit the zipper and determine the position of the zipper to ensure the accuracy of the pocket position during sewing.
[0034] like Figure 3 As shown, in this embodiment, the lower edge of the pocket insert cover 2 is fixed to the base plate 1 by adhesive tape with a width of 4.8cm. The lower edge of the pocket insert cover 2 is 17.0cm away from the lower edge of the base plate 1. The pocket insert cover 2 is a transparent plastic plate with a length of 77.5cm, a width of 19.0cm, and a thickness of 1.0mm. Each side of the lower surface of the pocket insert cover 2 is provided with an insert groove 21 with a length of 16.0cm and a width of 2.4cm. The two insert grooves 21 are symmetrical about the center line of the pocket insert cover 2. The upper edge of the insert groove 21 is aligned with the upper edge of the first upper zipper groove 11. The insert grooves 21 are provided to ensure that the four corners of the pocket insert are square and beautiful when the sewing machine sews the pocket insert.
[0035] Above each of the two insert grooves 21 on the bag insert cover 2, double-sided tape 22 is affixed. The double-sided tape 22 extends 2.0cm beyond the insert groove 21 at both ends and is 1.0cm wide. The lower edge of the double-sided tape 22 is flush with the upper edge of the insert groove 21. The double-sided tape 22 is used to fix the bag insert. Above the double-sided tape 22, a sponge strip 23 is affixed. The sponge strip 23 is also affixed to the lower surface of the bag insert cover 2. The sponge strip 23 is the same length as the double-sided tape 22 and 0.5cm wide. The lower edge of the sponge strip 23 is flush with the upper edge of the double-sided tape 22. The sponge strip 23 and the double-sided tape 22 are used to determine the position of the bag insert, ensuring accurate sewing of the bag insert during sewing.
[0036] like Figure 2 As shown, the upper edge of the pocket cover 3 is glued to the base plate 1 with a 4.8cm wide piece of kraft paper adhesive. The upper edge of the pocket cover 3 is 7.0cm away from the upper edge of the base plate 1. The pocket cover 3 is a transparent plastic plate with a length of 77.5cm, a width of 21.5cm, and a thickness of 1.0mm. A second upper zipper groove 31 and a second lower zipper groove 32 are provided on each side of the surface of the pocket cover 3. The two sets of second upper zipper grooves 31 and second lower zipper grooves 32 are symmetrical about the center line of the pocket cover 3. The second upper zipper grooves 31 and second lower zipper grooves 32 correspond to the first upper zipper groove 11 and the first lower zipper groove 12 on the base plate 1, respectively. A pocket position marking line 33 is drawn at the center position between the two sets of second upper zipper grooves 31 and second lower zipper grooves 32 on the surface of the pocket cover 3 to facilitate the determination of the position of the trouser piece and ensure the accuracy of the pocket sewing position.
[0037] like Figure 1 As shown, the cover plate 4 is stacked with the bottom edge of the base plate 1 aligned. The upper edge of the cover plate 4 is glued to the lower edge of the reinforcing plate 5 with 4.8cm wide kraft paper adhesive. The cover plate 4 is a transparent plastic plate with a length of 77.5cm, a width of 46.0cm, and a thickness of 1.5mm. A third upper zipper groove 41 and a third lower zipper groove 42 are provided on each side of the surface of the cover plate 4. The two sets of third upper zipper grooves 41 and third lower zipper grooves 42 are symmetrical about the center line of the cover plate 4. The positions and sizes of the third upper zipper grooves 41 and third lower zipper grooves 42 correspond one-to-one with the first upper zipper grooves 11 and the first lower zipper grooves 12 on the base plate 1.
[0038] The first upper zipper groove 11, the second upper zipper groove 31, and the third upper zipper groove 41 form the upper groove group, and the first lower zipper groove 12, the second lower zipper groove 32, and the third lower zipper groove 42 form the lower groove group. The three grooves of the first upper zipper groove 11, the second upper zipper groove 31, and the third upper zipper groove 41 are vertically aligned, and the three grooves of the first lower zipper groove 12, the second lower zipper groove 32, and the third lower zipper groove 42 are also vertically aligned. This allows the sewing needle to pass vertically through the upper groove group, the lower groove group, and the insert groove 21, which restricts the position of the sewing needle when sewing the bag insert, zipper, and bag fabric, thus improving the accuracy of sewing.
[0039] The reinforcing plate 5 is a transparent plastic plate with a length of 77.5cm, a width of 4.5cm, and a thickness of 1.5mm. It is used to balance the thickness of the template and increase its strength.
[0040] The top of the reinforcing plate 5 and the base plate 1 are each provided with three vertically corresponding template slots 6. The three template slots 6 are 1.2cm wide and 2.5cm deep, and are used to fix them on the locking posts of the automatic sewing machine to prevent the template from shifting during sewing.
[0041] How to use:
[0042] Fold the cover plate 4 towards the top of the base plate 1, fold the pocket fabric cover plate 3 towards the top of the base plate 1, and fold the pocket insert cover plate 2 towards the bottom of the base plate 1. Fully open the zipper to separate it into two parts, right sides up. Align the zipper teeth with the inside of the zipper foam strip 14 on the top of the base plate 1 and the zipper foam strip 15 on the bottom of the base plate 1, respectively. Secure the zipper to the base plate 1 with double-sided zipper tape 13. Fold the pocket insert strip right sides outwards, aligning the folded edge with the inside of the insert groove foam strip 23. Secure it to the pocket insert cover plate 2 with double-sided insert groove tape 22. Fold the pocket insert cover plate 2 upwards to cover the base plate 1, and open the pocket... With the right side of the fabric facing up, align the pocket opening edge with the inside of the zipper sponge strip 15 on the bottom plate 1, and place it on the pocket insert cover plate 2. Fold the pocket fabric cover plate 3 towards the bottom of the bottom plate 1 to cover the pocket insert cover plate 2. With the right side of the trouser piece facing up, align the top edge of the trouser piece with the pocket position marking line 33 on the pocket fabric cover plate 3. Fold the cover plate 4 towards the bottom of the bottom plate 1 to cover the pocket fabric cover plate 3. Place the covered template on the automatic sewing machine, and fix the template clip 6 on the clip of the automatic sewing machine. Use the sewing machine to sew the single-line zipper pocket in one go in the upper thread groove group, insert groove 21 and lower thread groove group.
[0043] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.
Claims
1. An automatic sewing template for single-line zipper pockets, characterized in that: The base plate (1), pocket trim cover plate (2), pocket fabric cover plate (3), cover plate (4) and reinforcing plate (5) are included. The reinforcing plate (5) is connected to one side of the base plate (1). The pocket trim cover plate (2) is connected to the side of the base plate (1) away from the reinforcing plate (5) in an openable manner. The pocket fabric cover plate (3) is connected to the side of the base plate (1) near the reinforcing plate (5) in an openable manner. The pocket fabric cover plate (3) is located above the pocket trim cover plate (2). The cover plate (4) is located above the pocket fabric cover plate (3). The side of the cover plate (4) near the reinforcing plate (5) is connected to the reinforcing plate (5). The base plate (1), pocket fabric cover plate (3) and cover plate (4) are vertically corresponding to the upper thread groove group and the lower thread groove group. The pocket trim cover plate (2) is provided with a trim groove (21). The trim groove (21) is vertically corresponding to the upper thread groove group and the lower thread groove group used for sewing limit.
2. The automatic sewing template for single-line zipper pocket cutting according to claim 1, characterized in that: A first upper zipper groove (11) and a first lower zipper groove (12) are respectively opened on both sides of the surface of the base plate (1). The two sets of first upper zipper grooves (11) and first lower zipper grooves (12) are symmetrical about the center line of the base plate (1). The left and right ends of the two sets of first upper zipper grooves (11) and first lower zipper grooves (12) are respectively provided with double-sided zipper adhesive (13). An upper zipper sponge strip (14) is arranged parallel above the first upper zipper groove (11), and a lower zipper sponge strip (15) is arranged parallel below the first lower zipper groove (12).
3. The automatic sewing template for single-line zipper pocket cutting according to claim 2, characterized in that: The surface of the bag insert cover (2) has two insert grooves (21). The two insert grooves (21) are symmetrical about the center line of the bag insert cover (2). The upper edge of the insert groove (21) is provided with double-sided tape (22) and the upper edge of the double-sided tape (22) is provided with sponge strip (23).
4. The automatic sewing template for single-line zipper pockets according to claim 3, characterized in that: The surface of the bag cover (3) is provided with a second upper zipper groove (31) and a second lower zipper groove (32) that correspond one-to-one with the first upper zipper groove (11) and the first lower zipper groove (12) on the bottom plate (1). The surface of the bag cover (3) is also provided with a pocket position marking line (33), which is located between the second upper zipper groove (31) and the second lower zipper groove (32).
5. The automatic sewing template for single-line zipper pockets according to claim 4, characterized in that: The cover plate (4) has a third upper zipper groove (41) and a third lower zipper groove (42) that correspond one-to-one with the first upper zipper groove (11) and the first lower zipper groove (12) on the base plate (1).
6. The automatic sewing template for single-line zipper pocket cutting according to claim 5, characterized in that: The first upper zipper groove (11), the second upper zipper groove (31) and the third upper zipper groove (41) constitute the upper groove group, and the first lower zipper groove (12), the second lower zipper groove (32) and the third lower zipper groove (42) constitute the lower groove group. The upper groove group and the lower groove group are vertically aligned.
7. The automatic sewing template for single-line zipper pockets according to claim 1, characterized in that: The top of the reinforcing plate (5) and the base plate (1) are provided with three template slots (6).
8. The automatic sewing template for single-line zipper pocket cutting according to claim 4, characterized in that: The lengths of the upper zipper sponge strip (14) and the lower zipper sponge strip (15) are greater than the lengths of the first upper zipper groove (11) and the first lower zipper groove (12), and the length of the double-sided adhesive tape (22) of the insert groove is greater than the length of the insert groove (21).
9. The automatic sewing template for single-line zipper pockets according to claim 1, characterized in that: The upper edge of the insert groove (21) is aligned with the upper edge of the upper line groove group.
Citation Information
Patent Citations
Bag digging sewing template
CN220619364U