A method for installing a trouser leg zipper

Abstract

The invention relates to a method for installing a trouser leg fork zipper, the zipper comprising a first chain belt and a second chain belt that cooperate with each other, the trouser legs comprising a trouser piece that is assembled, the trouser piece comprising a first trouser piece and a second trouser piece, the length direction of the trouser piece being the longitudinal direction, the width direction of the trouser piece being the transverse direction, the first trouser piece having a first sewing edge for sewing the first chain belt, the two ends of the first sewing edge in the length direction being respectively set as a first trouser opening end and a first fork end, the second trouser piece having a second sewing edge for sewing the second chain belt, the two ends of the second sewing edge in the length direction being respectively set as a second trouser opening end and a second fork end, the invention sews the first chain belt and the second chain belt through sewing strip grooves on a support plate, a pressure plate and a cover plate, which can reduce the skill requirements for staff members and improve production efficiency.

Description

Technical Field

[0001] The invention relates to a method for installing a trousers crotch zipper. Background Art

[0002] The size of the cuffs of traditional trousers (the position corresponding to the ankle after the trousers are worn) is fixed. In some occasions, a small cuff can make the trousers more close-fitting and stylish, and at the same time have a certain protective effect such as warmth preservation. However, if the cuffs are too small, it is inconvenient to take off the trousers. In order to solve this problem, in the Chinese utility model patent with authorization announcement number CN205922959U and the name "trousers with adjustable cuff width", a pair of trousers with adjustable cuff width is disclosed, including a trouser body; an adjustment zipper is installed on the inner surface or outer surface of the outer leg opening of the trousers, the upper ends of the two adjustment zippers are tightly and juxtaposedly fixed to the upper part of the trouser cuffs, and the lower ends of the two adjustment zippers are fixed to the lower end of the trouser cuffs with a spacing. When the adjustment zipper is opened, the trouser cuff can be enlarged, making it easier to put on and take off the trousers.

[0003] When installing a zipper on the above-mentioned trousers, the two zipper straps are usually sewn at the fork (the fork portion for installing the zipper) of the trouser legs by manual sewing. During the sewing process, in order to ensure that the two straps can be smoothly pulled together and aligned after being pulled together, it is generally required that the sewing operation be performed by a worker with at least one year of sewing operation experience, and the operation time is long and the work efficiency is low.

[0004] In view of this, the inventor of this case conducted in-depth research on the above-mentioned issues, which led to the emergence of this case. Summary of the invention

[0005] The object of the present invention is to provide a method for installing a trouser crotch zipper which can improve production efficiency and reduce the skill requirements for operators.

[0006] In order to achieve the above object, the present invention adopts such technical solution:

[0007] A method for installing a trouser leg fork zipper, the zipper comprising a first chain belt and a second chain belt that cooperate with each other, the trouser legs comprising a trouser piece that is assembled, the trouser piece comprising a first trouser piece and a second trouser piece, the length direction of the trouser piece being the longitudinal direction, the width direction of the trouser piece being the transverse direction, the first trouser piece having a first sewing edge for sewing the first chain belt, the two ends of the first sewing edge in the length direction being respectively set as a first trouser opening end and a first fork end, the second trouser piece having a second sewing edge for sewing the second chain belt, the two ends of the second sewing edge in the length direction being respectively set as a second trouser opening end and a second fork end, comprising the following steps:

[0008] Step A, placing the first trouser piece on a support plate, pressing the first trouser piece with a pressing plate, pasting the second chain belt to the second sewn edge of the second trouser piece, placing the second trouser piece on the pressing plate corresponding to the first trouser piece, cutting a slit in the transverse direction at the second fork end, swinging the second sewn edge of the second trouser piece around the slit so that the first sewn edge and the second sewn edge are arranged in a V shape, pressing the second sewn edge with a guide draw plate, folding the second trouser piece corresponding to the second sewn edge by 180 degrees with the guide draw plate as a support edge, and placing the first chain belt on the position of the pressing plate corresponding to the first sewn edge;

[0009] Step B, placing a cover plate on the support plate to press the second trouser piece and the first chain belt, and pulling the guide drawer plate out from between the support plate and the pressure plate;

[0010] Step C, a first sewing strip groove is provided on the support plate corresponding to the first chain belt, a second sewing strip groove is provided on the pressing plate corresponding to the first sewing strip groove, a third sewing strip groove is provided on the support plate corresponding to the second chain belt, a fourth sewing strip groove is provided on the pressing plate corresponding to the third sewing strip groove, a fifth sewing strip groove is provided on the cover plate corresponding to the second sewing strip groove, a sixth sewing strip groove is provided on the cover plate corresponding to the fourth sewing strip groove, sewing is performed along the first sewing strip groove, the second sewing strip groove and the fifth sewing strip groove to connect the first chain belt and the first trouser piece together, sewing is performed along the third sewing strip groove, the fourth sewing strip groove and the sixth sewing strip groove to connect the second chain belt and the second trouser piece together.

[0011] As a preferred embodiment of the present invention, the pressing plate is provided with two first alignment marks for aligning the first trouser piece, and the two first alignment marks are vertically arranged.

[0012] As a preferred embodiment of the present invention, after the second trouser piece is placed on the pressing plate, it is temporarily adhered to the pressing plate by a first adhesive tape, and the first adhesive tape is arranged staggered from the second sewing edge.

[0013] As a preferred embodiment of the present invention, the pressing plate is further provided with a second alignment mark for aligning the guide drawer plate.

[0014] As a preferred embodiment of the present invention, during sewing in step C, the support plate, the first trouser piece, the second trouser piece, the first chain belt, the second chain belt, the pressing plate and the cover plate are placed together in a computer template sewing machine, and sewing is performed in the first sewing strip groove, the second sewing strip groove, the third sewing strip groove, the fourth sewing strip groove, the fifth sewing strip groove and the sixth sewing strip groove by moving the electric sewing machine head in the computer template sewing machine.

[0015] By adopting the technical scheme of the present invention, the first trouser piece is pressed by a pressing plate, the second trouser piece is placed on the pressing plate and aligned with the first trouser piece, a slit is cut at the second fork end, the second trouser piece is tilted, and is folded by using a guide draw plate, and then the components are pressed by a cover plate, and sewing is performed at the first sewing strip groove, the second sewing strip groove, the third sewing strip groove, the fourth sewing strip groove, the fifth sewing strip groove and the sixth sewing strip groove, so that the first chain belt and the second chain belt can be installed. The first trouser piece, the second trouser piece, the first chain belt and the second chain belt of the present invention are arranged, and the first sewing strip groove, the second sewing strip groove, the third sewing strip groove and the fourth sewing strip groove are directly used to guide the sewing, and standardized operations can be achieved in conjunction with a computer template sewing machine, which reduces the requirements for the skills of the staff and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of placing the first trouser piece on the supporting plate in the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of placing the pressing plate and the second trouser piece on the supporting plate of the present invention.

[0018] Figure 3 The figure is a schematic diagram of the structure after the slits are cut in the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the second trouser piece after the deflection in the present invention.

[0020] Figure 5 It is a structural schematic diagram of placing a guide drawer plate in the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the present invention after being folded around the guide drawer plate.

[0022] Figure 7 The structural schematic diagram of the first chain belt is placed on the present invention.

[0023] Figure 8 This is a schematic diagram of the structure of the present invention after the cover plate is placed.

[0024] Fig. 9 It is a schematic diagram of the structure after the guide drawer plate of the present invention is drawn away.

[0025] In the figure:

[0026] First trouser piece 10 first sewing edge 11

[0027] First trouser opening end 111 First fork opening end 112

[0028] Second trouser piece 20 second sewing edge 21

[0029] Second trouser opening end 211 Second fork opening end 212

[0030] First adhesive tape 22 cut 23

[0031] First chain belt 31 Second chain belt 32

[0032] The first sewing strip groove 41 of the support plate 40

[0033] Second sewing strip groove 42 pressing plate 50

[0034] The third sewing strip groove 51 The fourth sewing strip groove 52

[0035] First alignment mark 53 Second alignment mark 54

[0036] Guide plate 60

[0037] The fifth sewing strip groove 71 of the cover plate 70

[0038] Sixth sewing strip groove 72 DETAILED DESCRIPTION

[0039] In order to further explain the technical solution of the present invention, it is described in detail below in conjunction with embodiments.

[0040] Reference Figures 1 to 9 A method for installing a zipper at the crotch of trousers, the zipper includes a first chain belt 31 and a second chain belt 32 that cooperate with each other, the trouser legs of the trousers include trouser pieces that are assembled together, the present invention takes one of the trouser legs of the trousers as an example, one trouser leg is formed by sewing two trouser pieces, the two trouser pieces are set as a first trouser piece 10 and a second trouser piece 20, the length direction of the trouser piece is the longitudinal direction, the width direction of the trouser piece is the transverse direction, after the trousers are worn, the longitudinal direction is the up-and-down direction, the transverse direction is the left-and-right direction, the first trouser piece 10 has a first sewing edge 11 for sewing the first chain belt 31, the first trouser piece 10 is further provided with a first stitching edge at a position corresponding to the first sewing edge 11, and the first sewing edge 11 is formed along the length The two ends in the length direction are respectively set as the first trouser opening end 111 (that is, located at the lower end position of the trouser leg) and the first fork end 112, the first fork end 112 is located at the upper end of the first trouser opening end 111, the second trouser piece 20 has a second sewing edge 21 for sewing the second chain belt 32, and the second trouser piece 20 is further provided with a second stitching edge at a position corresponding to the second sewing edge 21. When the first trouser piece 10 and the second trouser piece 20 are sewn together, the first sewing edge 11 and the second sewing edge 21 are sewn together, and the two ends in the length direction of the second sewing edge 21 are respectively set as the second trouser opening end 211 (that is, located at the lower end position of the trouser leg) and the second fork end 212. The present invention comprises the following steps:

[0041] Step A, placing the first trousers piece 10 on a support plate 40, the support plate 40 is placed in a horizontal direction, and the first trousers piece 10 is pressed by a pressing plate 50, the pressing plate 50 is placed in a horizontal direction. As a preferred embodiment of the present invention, the pressing plate 50 is provided with two first alignment marks 53 for aligning the first trousers piece 10, and the two first alignment marks 53 are arranged vertically. The second chain belt 32 is pasted (for example, a small amount of double-sided tape or glue can be used for temporary bonding) on ​​the second sewing edge 21 of the second trousers piece 20, and the second trousers piece 20 is placed on the pressing plate 50 corresponding to the first trousers piece 10. As a preferred embodiment of the present invention, after the second trousers piece 20 is placed on the pressing plate 50, it is temporarily pasted on the pressing plate 50 by the first adhesive tape 22, and the first adhesive tape 22 is arranged staggered from the second sewing edge 21, that is, the first adhesive tape 22 can be arranged on the first sewing edge. A slit 23 is cut transversely at the second fork end 212, and the second sewing edge 21 of the second trouser piece 20 is deflected at the position of the slit 23. The deflection angle can be, for example, 20 to 30 degrees, so that the first sewing edge 11 and the second sewing edge 21 are arranged in a V shape. The second sewing edge 21 is pressed by a guide drawer 60. As a preferred embodiment of the present invention, the pressing plate 50 is also provided with a second alignment mark 54 for the alignment of the guide drawer 60. The second trouser piece 20 is folded 180 degrees at the position corresponding to the second sewing edge 21 with the guide drawer 60 as the supporting edge, and the guide drawer 60 is covered. The first chain belt 31 is placed on the pressing plate 50 at the position corresponding to the first sewing edge 11.

[0042] Step B, a cover plate 70 is placed on the support plate 40 to press the second trouser piece 20 and the first chain belt 31, and the guide drawer 60 is pulled out from between the support plate 40 and the cover plate 70;

[0043] Step C: A first sewing strip groove 41 is provided on the support plate 40 corresponding to the first chain belt 31, a second sewing strip groove 42 is provided on the pressing plate 50 corresponding to the first sewing strip groove 41, a third sewing strip groove 51 is provided on the support plate 40 corresponding to the second chain belt 32, a fourth sewing strip groove 52 is provided on the pressing plate 50 corresponding to the third sewing strip groove 51, a fifth sewing strip groove 71 is provided on the cover plate 70 corresponding to the second sewing strip groove 42, a sixth sewing strip groove 72 is provided on the cover plate 70 corresponding to the fourth sewing strip groove 52, sewing is performed along the first sewing strip groove 41, the second sewing strip groove 42 and the fifth sewing strip groove 71 to connect the first chain belt 31 and the first trouser piece 10 together, and sewing is performed along the third sewing strip groove 51, the fourth sewing strip groove 52 and the sixth sewing strip groove 72 to connect the second chain belt 32 and the second trouser piece 20 together.

[0044] As a preferred embodiment of the present invention, in step C, during sewing, the support plate 40, the first trouser piece 10, the second trouser piece 20, the first chain belt 31, the second chain belt 32, the pressing plate 50 and the cover plate 70 are placed together in a computer template sewing machine, and the first sewing strip groove 41, the second sewing strip groove 42, the third sewing strip groove 51, the fourth sewing strip groove 52, the fifth sewing strip groove 71 and the sixth sewing strip groove 72 are sewn by moving the electric sewing machine head in the computer template sewing machine. The computer template sewing machine is a well-known structure in the art, and the present invention only needs to set the direction of the electric sewing machine head according to the direction of the first chain belt 31 and the second chain belt 32. For example, this type of template sewing machine is disclosed in the Chinese utility model patent with the authorization announcement number CN211471778U and the name "A fully automatic computer template sewing machine for production".

[0045] The product form of the present invention is not limited to the embodiments of this case. Any appropriate changes or modifications made by anyone with similar ideas should be deemed to be within the patent scope of the present invention.

Claims

1. A method for installing a trouser leg fork zipper, the zipper comprising a first chain belt and a second chain belt that cooperate with each other, the trouser legs of the trousers comprising a trouser piece that is assembled, the trouser piece comprising a first trouser piece and a second trouser piece, the length direction of the trouser piece is the longitudinal direction, the width direction of the trouser piece is the transverse direction, the first trouser piece has a first sewing edge for sewing the first chain belt, the two ends of the first sewing edge in the length direction are respectively set as a first trouser opening end and a first fork end, the second trouser piece has a second sewing edge for sewing the second chain belt, the two ends of the second sewing edge in the length direction are respectively set as a second trouser opening end and a second fork end, characterized in that: The following steps are involved: Step A, placing the first trouser piece on a support plate, pressing the first trouser piece with a pressing plate, pasting the second chain belt to the second sewn edge of the second trouser piece, placing the second trouser piece on the pressing plate corresponding to the first trouser piece, cutting a slit in the transverse direction at the second fork end, swinging the second sewn edge of the second trouser piece around the slit so that the first sewn edge and the second sewn edge are arranged in a V shape, pressing the second sewn edge with a guide draw plate, folding the second trouser piece corresponding to the second sewn edge by 180 degrees with the guide draw plate as a support edge, and placing the first chain belt on the position of the pressing plate corresponding to the first sewn edge; Step B, placing a cover plate on the support plate and pressing the second trouser piece and the first chain belt, and pulling the guide drawer plate out from between the support plate and the cover plate; Step C, a first sewing strip groove is provided on the support plate corresponding to the first chain belt, a second sewing strip groove is provided on the pressing plate corresponding to the first sewing strip groove, a third sewing strip groove is provided on the support plate corresponding to the second chain belt, a fourth sewing strip groove is provided on the pressing plate corresponding to the third sewing strip groove, a fifth sewing strip groove is provided on the cover plate corresponding to the second sewing strip groove, a sixth sewing strip groove is provided on the cover plate corresponding to the fourth sewing strip groove, sewing is performed along the first sewing strip groove, the second sewing strip groove and the fifth sewing strip groove to connect the first chain belt and the first trousers piece together, sewing is performed along the third sewing strip groove, the fourth sewing strip groove and the sixth sewing strip groove to connect the second chain belt and the second trousers piece together; During sewing in step C, the support plate, the first trouser piece, the second trouser piece, the first chain belt, the second chain belt, the pressing plate and the cover plate are placed together in a computer template sewing machine, and the first sewing strip groove, the second sewing strip groove, the third sewing strip groove, the fourth sewing strip groove, the fifth sewing strip groove and the sixth sewing strip groove are sewn by moving the electric sewing machine head in the computer template sewing machine.

2. A method for installing a trouser crotch zipper according to claim 1, characterized in that: The pressing plate is provided with two first alignment marks for aligning the first trouser piece, and the two first alignment marks are vertically arranged.

3. A method for installing a trouser crotch zipper as claimed in claim 2, characterized in that: After the second trouser piece is placed on the pressing plate, it is temporarily adhered to the pressing plate by a first adhesive tape, and the first adhesive tape is arranged staggered with respect to the second sewing edge.

4. A method for installing a trouser crotch zipper as claimed in claim 3, characterized in that: The support plate is also provided with a second alignment mark for aligning the guide drawer plate.

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