A sewing device and sewing method for solving the problem of pilling and fraying at denim seams.

Abstract

The present invention discloses a sewing device for solving the problem of fluffing and disorder in the splicing of denim seams, including a sewing machine, the sewing machine including a body, a machine head and a sewing table, the machine head is equipped with a machine needle and a cutting knife frame, the cutting knife frame is fixed with a cutting knife, and the sewing table is equipped with a needle plate, characterized in that: it also includes an edge binding device, the edge binding device is located on the side of the needle plate, and the edge binding device is located behind the cutting knife; the edge binding device includes an edge binding plate and a serpentine frame, the edge binding plate is a three-dimensional structure with one end having a flat mouth shape that gradually shrinks along the width center line, and the serpentine frame is located at the entrance side of the edge binding plate and is connected to the edge binding plate through a height adjustment structure. The present invention is simple to operate, the transmission and operation of the edge binding cloth are stable, and it effectively solves the problem of fluffing and disorder at the seam splicing of denim clothing products due to washing.

Description

Technical Field

[0001] The invention relates to the technical field of sewing, in particular to a sewing device for solving the problem of fluffing and disorder in the splicing of jeans seams. Background Art

[0002] Denim clothing products need to fade after washing, which causes the warp and weft yarns at the five-thread lockstitching at the cutting and seams to spread out after washing. In severe cases, the threads may come untied, which easily leads to quality problems. After being worn and rubbed against the skin or other underwear, the clothes will become even more scattered and very unsightly. Summary of the invention

[0003] The purpose of the present invention is to provide a sewing device to solve the problem of fuzzing and disorder at the seam of jeans, and solve the problem that the seams of jeans are easily unstitched.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention discloses a sewing device for solving the problem of fluffing and disorder at the seam of jeans, comprising a sewing machine, the sewing machine comprising a machine body, a machine head and a sewing table, the machine head is provided with a machine needle and a cutting knife frame, the cutting knife frame is fixed with a cutting knife, the sewing table is provided with a needle plate, and the sewing machine is characterized in that: the sewing device further comprises a hemming device, the hemming device is located at the side of the needle plate, and the hemming device is located behind the cutting knife;

[0006] The edging device includes an edging plate and a serpentine frame. The edging plate is a three-dimensional structure that gradually shrinks along the width center line to form a flat-mouth shape at one end. The serpentine frame is located at the entrance side of the edging plate and is connected to the edging plate through a height adjustment structure.

[0007] Furthermore, the edging plate includes a back plate, the back plate is a structure that is narrow in front and wide in the back, and flange plates are arranged on both sides of the back plate, the front ends of the two flange plates gradually gather and bend inward to connect, and are integrally formed with the front end of the back plate to form a flat-mouthed cylindrical structure with a U-shaped cross section;

[0008] A guide cylinder for flattening the cloth strip is arranged at the rear end of the back plate; a mounting plate is arranged below the back plate, and a waist-shaped hole is arranged on the mounting plate, and the waist-shaped hole is fixed to the fuselage by bolts.

[0009] Furthermore, a pressing sheet is provided on the outer side wall of the guide cylinder, a rear end of the pressing sheet is fixedly connected to the guide cylinder, and a front end of the pressing sheet extends between the two flange plates.

[0010] Furthermore, a door-shaped plate is arranged on the outer side of the pressing plate, and both ends of the door-shaped plate are fixedly connected to the edging plate. The door-shaped plate is connected with a top screw via a thread, and the top screw is against the pressing plate.

[0011] Furthermore, the height adjustment structure includes a slot, which is located on the opposite side of the pressing plate and fixed on the outer wall of the guide cylinder. A U-shaped plug is arranged in the slot, and the serpentine frame is fixedly connected to the U-shaped plug. Anti-slip grooves are arranged on the surfaces of the U-shaped plug in contact with the slot, and the direction of the anti-slip grooves is perpendicular to the plug-in direction of the U-shaped plug.

[0012] Furthermore, a guide plate bent toward the rear side is provided at the front end of the back plate, and an arc-shaped transition connection is adopted at the connection between the guide plate and the back plate.

[0013] Furthermore, it also includes a wrapping cloth unwinding device, the wrapping cloth unwinding device includes a U-shaped card seat, a top plate is arranged in the card slot of the U-shaped card seat, a handle is rotatably connected to the bottom of the top plate, and the handle is connected to the U-shaped card seat by a thread;

[0014] A vertical pole is arranged on the top of the U-shaped holder, a tray is arranged on the top of the vertical pole, and a wire-laying column is arranged on the top surface of the tray.

[0015] The present invention discloses a sewing method for solving the problem of fuzzing and disordered splicing of denim seams, comprising the following steps:

[0016] Step 1: Place the hemming cloth reel on the hemming cloth unwinding device, and guide the cloth strip head of the hemming cloth reel to pass through the serpentine frame and the hemming plate in sequence, so that the cloth strip head extends to the bottom of the machine needle, and the cloth strip head is bent into a U-shaped structure after passing through the hemming plate.

[0017] Step 2: Place the fabric to be edge-locked on the sewing table, push the fabric forward, and form neat edges after the fabric is cut by the cutter. At this time, the U-shaped fabric strip head is wrapped around the edges.

[0018] Step three: start the overlock machine, and the machine head drives the needle to move, finally completing the overlocking.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are:

[0020] The present invention introduces the hemming cloth into the sewing line of the needle and thread plate by adding an hemming device, so that the hemming cloth first covers the stopper of the cut piece and then the joint is sewed by a hemming machine to be integrated and sewn out. Because the cloth strip covers the cutting edge of the cut piece and then the sewing line is sewn, the warp and weft yarns will not be exposed at the joint no matter how the joint is washed, so that it is beautiful and will not have quality problems caused by the washing process. The present invention is simple to operate, and the hemming cloth transmission and operation are stable, which effectively solves the problem of fuzziness and disorder at the seam joints of denim clothes due to washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of a sewing device for solving the problem of fuzzing and disordered seam splicing of jeans according to the present invention;

[0023] Figure 2 It is a structural schematic diagram of the hemming device of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the edge board of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the height adjustment structure of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the hemming cloth unwinding device of the present invention.

[0027] Description of the accompanying drawings: 1. Overlock machine; 101. Machine body; 102. Machine head; 103. Sewing table; 104. Machine needle; 105. Cutter frame; 106. Cutter; 107. Needle plate; 2. Overlock device; 201. Overlock plate; 201-1. Back plate; 201-2. Flanging plate; 201-3. Guide cylinder; 201-4. Mounting plate; 201-5. Waist-shaped hole; 2 02, serpentine frame; 203, height adjustment structure; 203-1, slot; 203-2, U-shaped insert; 203-3, anti-slip pattern; 204, pressing sheet; 205, door-shaped plate; 206, top screw; 207, guide plate; 3, edging cloth unwinding device; 301, U-shaped holder; 302, top plate; 303, handle; 304, vertical pole; 305, tray; 306, wire-releasing column. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figure 1 and 2As shown, the present embodiment discloses a sewing device for solving the problem of fluffing and disorderly splicing of denim seams, including a sewing machine 1, the sewing machine 1 including a body 101, a machine head 102 and a sewing table 103, a machine needle 104 and a cutter frame 105 are installed on the machine head 102, a cutter 106 is fixed on the cutter frame 105, and a needle plate 107 is installed on the sewing table 103. The sewing machine 1 belongs to the prior art, and its specific structure is not described in detail. In order to solve the problem of fluffing and disorderly splicing of denim seams, the present embodiment also includes a hemming device 2, which is located on the side of the needle plate 107 and behind the cutter 106. Specifically, the edging device 2 includes an edging plate 201 and a serpentine frame 202. The edging plate 201 is a three-dimensional structure that gradually shrinks along the width center line to form a flat-mouth shape at one end. The serpentine frame 202 is located at the entrance side of the edging plate 201 and is connected to the edging plate 201 through a height adjustment structure 203.

[0030] like Figure 3 As shown, the edging plate 201 includes a back plate 201-1, which is narrow in front and wide in the back. Flanged plates 201-2 are arranged on both sides of the back plate 201-1. The front ends of the two flanged plates 201-2 gradually gather and bend inward to connect, and are integrally formed with the front end of the back plate 201-1 to form a flat-mouthed cylindrical structure with a U-shaped cross section. A guide cylinder 201-3 for flattening the cloth strip is arranged at the rear end of the back plate 201-1; a mounting plate 201-4 is arranged below the back plate 201-1, and a waist-shaped hole 201-5 is arranged on the mounting plate 201-4, and the waist-shaped hole 201-5 is fixed to the fuselage 101 by bolts.

[0031] In order to keep the hemming cloth in a straight state when passing through the hemming plate 201, a pressing plate 204 is provided on the outer wall of the guide cylinder 201-3, the rear end of the pressing plate 204 is fixedly connected to the guide cylinder 201-3, and the front end of the pressing plate 204 extends between the two flanging plates 201-2.

[0032] In order to reduce the wear of the edging cloth when passing through the front end of the edging plate 201, a guide plate 207 bent backward is provided at the front end of the back plate 201-1, and an arc transition connection is adopted at the connection between the guide plate 207 and the back plate 201-1.

[0033] In order to facilitate the adjustment of the pressure of the pressing plate 204 , a door-shaped plate 205 is provided on the outer side of the pressing plate 204 . Both ends of the door-shaped plate 205 are fixedly connected to the edging plate 201 . A top screw 206 is threadedly connected to the door-shaped plate 205 , and the top screw 206 rests on the pressing plate 204 .

[0034] Since the width of the hemming cloth cannot be determined uniquely, when the cloth is folded by the hemming device, the widths of the two sides of the hemming cloth after folding are likely to be inconsistent, which will directly lead to the hemming cloth being unable to be sewn by the sewing machine. However, the height adjustment device that moves up and down can control the cloth to be folded close to the center line in the width direction. Figure 4 As shown, the height adjustment structure 203 includes a slot 203-1, which is located on the opposite side of the pressing plate 204 and fixed on the outer wall of the guide cylinder 201-3. A U-shaped plug 203-2 is arranged in the slot 203-1, and the snake frame 202 is fixedly connected to the U-shaped plug 203-2. The surface of the U-shaped plug 203-2 in contact with the slot 203-1 is provided with anti-slip grooves 203-3, and the direction of the anti-slip grooves 203-3 is perpendicular to the insertion direction of the U-shaped plug 203-2. By adjusting the insertion position of the U-shaped plug 203-2 in the slot 203-1, the height of the snake frame 202 is adjusted, and the center line of the hemming cloth is aligned with the center line of the hemming board 201.

[0035] Existing edge cloths are all rolled products. In order to place the rolled edge cloth, the present embodiment also includes an edge cloth unwinding device 3, such as Figure 5 As shown, the hemming cloth unwinding device 3 comprises a U-shaped holder 301, a top plate 302 is arranged in the slot of the U-shaped holder 301, a handle 303 is rotatably connected to the bottom of the top plate 302, and the handle 303 is connected to the U-shaped holder 301 by threads; a vertical pole 304 is arranged on the top of the vertical pole 304, a tray 305 is arranged on the top of the tray 305, and a wire release column 306 is arranged on the top surface of the tray 305. When in use, the U-shaped holder 301 is clamped on the workbench, and the top plate 302 is pressed against the lower surface of the workbench by rotating the handle 303, so that the U-shaped holder 301 is fixed on the workbench, and finally, the rolled hemming cloth is placed on the wire release column 306.

[0036] This embodiment also discloses a sewing method for solving the problem of fuzzing and disordered seam splicing of jeans, comprising the following steps:

[0037] Step 1: Place the hemming cloth reel on the hemming cloth unwinding device 3, and guide the cloth strip head of the hemming cloth reel to pass through the serpentine frame 202 and the hemming plate 201 in sequence, so that the cloth strip head extends to the bottom of the machine needle 104, and the cloth strip head is bent into a U-shaped structure after passing through the hemming plate 201.

[0038] Step 2: Place the fabric to be edge-locked on the sewing table 103, push the fabric forward, and the fabric will be cut by the cutter 106 to form a neat edge. At this time, the U-shaped fabric strip head is wrapped around the edge.

[0039] Step 3, start the overlock machine 1, the machine head 102 drives the machine needle 104 to move, and finally completes the overlocking.

[0040] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A sewing device for solving the problem of fluffing and disorder in the splicing of jeans seams, comprising an overlock sewing machine (1), the overlock sewing machine (1) comprising a machine body (101), a machine head (102) and a sewing table (103), the machine head (102) being provided with a machine needle (104) and a cutting knife frame (105), the cutting knife frame (105) being fixed with a cutting knife (106), and the sewing table (103) being provided with a needle plate (107), characterized in that: It also includes an edge binding device (2), wherein the edge binding device (2) is located on the side of the needle plate (107), and the edge binding device (2) is located behind the cutter (106); The edge wrapping device (2) comprises an edge wrapping plate (201) and a serpentine frame (202); the edge wrapping plate (201) is a three-dimensional structure that gradually shrinks along the width centerline to form a flat-mouthed shape at one end; the serpentine frame (202) is located at the inlet side of the edge wrapping plate (201) and is connected to the edge wrapping plate (201) via a height adjustment structure (203); The edging plate (201) comprises a back plate (201-1), the back plate (201-1) is a structure that is narrow in front and wide in the back, flange plates (201-2) are arranged on both sides of the back plate (201-1), the front ends of the two flange plates (201-2) gradually gather together, bend inwards and connect, and are integrally formed with the front end of the back plate (201-1) to form a flat-mouthed cylindrical structure with a U-shaped cross section; A guide cylinder (201-3) for flattening the cloth strip is arranged at the rear end of the back plate (201-1); a mounting plate (201-4) is arranged below the back plate (201-1); a waist-shaped hole (201-5) is arranged on the mounting plate (201-4); and the waist-shaped hole (201-5) is fixed to the fuselage (101) by means of bolts; The height adjustment structure (203) comprises a slot (203-1), the slot (203-1) is located on the opposite side of the pressing sheet (204) and is fixed on the outer side wall of the guide cylinder (201-3), a U-shaped plug-in sheet (203-2) is arranged in the slot (203-1), the serpentine frame (202) is fixedly connected to the U-shaped plug-in sheet (203-2), and anti-slip grooves (203-3) are arranged on the surfaces of the U-shaped plug-in sheet (203-2) in contact with the slot (203-1), and the direction of the anti-slip grooves (203-3) is perpendicular to the plugging direction of the U-shaped plug-in sheet (203-2).

2. The sewing device for solving the problem of fluffing and disorder at the seam of jeans according to claim 1 is characterized in that: A pressing sheet (204) is provided on the outer side wall of the guide cylinder (201-3), the rear end of the pressing sheet (204) is fixedly connected to the guide cylinder (201-3), and the front end of the pressing sheet (204) extends between the two flange plates (201-2).

3. The sewing device for solving the problem of fluffing and disorder at the seam of jeans according to claim 2 is characterized in that: A door-shaped plate (205) is arranged on the outer side of the pressing plate (204), and both ends of the door-shaped plate (205) are fixedly connected to the edge plate (201). A top screw (206) is connected to the door-shaped plate (205) through a thread, and the top screw (206) is against the pressing plate (204).

4. The sewing device for solving the problem of fluffing and disorder at the seam of jeans according to claim 1 is characterized in that: The front end of the back plate (201-1) is provided with a guide plate (207) bent toward the rear side, and the guide plate (207) and the back plate (201-1) are connected at a point where an arc-shaped transition connection is adopted.

5. The sewing device for solving the problem of fluffing and disorder at the seam of jeans according to claim 1 is characterized in that: It also comprises a hemming cloth unwinding device (3), the hemming cloth unwinding device (3) comprising a U-shaped clamping seat (301), a top plate (302) being arranged in a clamping groove of the U-shaped clamping seat (301), a handle (303) being rotatably connected below the top plate (302), and the handle (303) being connected to the U-shaped clamping seat (301) by means of threads; A vertical pole (304) is arranged on the top of the U-shaped holder (301), a tray (305) is arranged on the top of the vertical pole (304), and a wire-laying column (306) is arranged on the top surface of the tray (305).

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