CN110158242B

CN110158242B - Sewing device

Info

Publication number: CN110158242B
Application number: CN201910543152.9A
Authority: CN
Inventors: 后藤秀隆
Original assignee: Sojitz Corp
Current assignee: Sojitz Corp
Priority date: 2018-06-26
Filing date: 2019-06-21
Publication date: 2020-04-10
Anticipated expiration: 2039-06-21
Also published as: JP2020000388A; CN110158242A; WO2020003983A1; JP6423568B1

Abstract

The invention provides a sewing device for sewing a zipper accessory with a front fly of trousers without manual operation. A sewing device (10) is provided with: a stand (11) having a top plate (12); a fly cloth storage section (20); a zipper receiving part (60); a first clip (31) for taking out the fly cloth (211) from the fly cloth storage section (20); a fly fabric positioning part (40) for positioning the fly fabric (211); a second clip (81) for taking out the zipper (212) from the zipper storage part (60) and placing the zipper (212) on the top of the fly cloth (211); a pair of second side panels (98, 99) for positioning the zipper (212); a first sewing machine (13) for attaching the zipper (212) to the fly fabric (211) in accordance with the guide of the first sewing machine guide (100); and a second sewing machine (14) for processing the cloth end of the fly cloth (211) along with the guide of the guide part (120) for the second sewing machine.

Description

Sewing device

Technical Field

The invention relates to a sewing device, which enables sewing of a front fly zipper accessory of jeans to be automated.

Background

Conventionally, pants made by sewing denim fabric are called jeans and widely distributed. In general, a material called a placket fastener accessory, in which a zipper is attached to a placket fabric of another jeans fabric along a front side seam on the back surface of the front side of jeans, is known.

Fig. 1 is a view illustrating a front zipper assembly of jeans. A front zipper assembly 201 including a zipper is attached to a main portion of the front side of the jeans 200 shown in fig. 1(a) along the front door of the jeans. In addition, a material 202 called a crown dog is also installed so as to be able to cover the tape fly zipper fitting 201. The flap fastener fitting 210 shown in fig. 1(b) is formed as follows: a slide fastener 212 is disposed along the longitudinal direction on the front surface of a fly 211 having a substantially rectangular denim fabric, a left-side tape of the slide fastener 212 is sewn to the fly 211 by a flat seam along a straight line 213 extending in the longitudinal direction, and the cloth edge of the fly 211 is processed by a lockstitch 214 so as to draw a left-side straight line, a combination of a lower arc and a straight line, or an arbitrary curve.

Disclosure of Invention

Problems to be solved by the invention

However, since the front zipper accessory of jeans is sewn by a sewing worker by manual work, a certain technique is required for the sewing worker, and the quality of the sewn front zipper accessory is unstable. In addition, since the sewing worker manually sews the fastener with the placket, the amount of sewing that can be performed is also limited.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a sewing device for sewing a slide fastener attachment with a fly, which does not require the function of sewing by a worker's manual work.

Means for solving the problems

In order to achieve the above object, a sewing device according to the present invention is a sewing device for sewing a placket fastener accessory with a placket of trousers by a placket cloth and a zipper, and comprises: a stand having a top plate; a front fly cloth storage part which is installed at the side part of the stand, has an opening at the upper part and is used for stacking and storing the front fly cloth; a zipper receiving part which is installed at the side part of the stand and comprises a tray for arranging and receiving the zipper; a first clip for taking out the fly cloth stored in the fly cloth storage part piece by piece and placing the fly cloth at a first position of the top plate; a front fly cloth positioning portion that positions the front fly cloth placed at the first position; a first conveying unit that conveys the positioned fly cloth from a first position to a second position of the top plate along the upper surface of the top plate; a second clip for taking out the zippers stored in the zipper storage part one by one and placing the zippers on the positioned fly cloth; a zipper positioning part for positioning the zipper placed on the positioned fly cloth; a first sewing machine for attaching the slide fastener to the fly cloth; a first sewing machine guide part which guides the placket front cloth and the zipper respectively positioned by the first sewing machine along the upper surface of the top plate, so that the zipper can be installed on the placket front cloth by the first sewing machine; a second sewing machine for processing the cloth end of the fly cloth; and a second sewing machine guide part which guides the placket front cloth provided with the zipper along the upper surface of the top plate to the second sewing machine, so that the second sewing machine can process the cloth end of the placket front cloth.

Alternatively, the slide fastener may be attached to the fly fabric by a first sewing machine through a flat seam. The second sewing machine may move and rotate the placket front cloth to which the zipper is attached within a plane in which the upper surface of the top plate extends, and cut the placket front cloth so that the cloth end of the placket front cloth has a predetermined shape, and perform the serging. The predetermined shape may include at least one of a straight line and a circular arc. The predetermined shape may include a shape obtained by an arbitrary curve.

The fly positioning portion may include a push plate that pushes the fly in a predetermined direction within a plane extending from the upper surface of the top plate, and a pair of first side plates that face each other and that make the fly side in a direction substantially orthogonal to the predetermined direction.

The zipper positioning portion may include a pair of second facing side abutment plates for abutting the zipper placed on the positioned fly against the teeth.

The slide fastener conveying device may further include a second conveying portion that receives the fly fabric and the slide fastener from the second position and conveys the fly fabric and the slide fastener to a third position along the upper surface of the top plate, and the second conveying portion may include a slide fastener positioning portion. The first sewing machine guide may receive the fly cloth and the slide fastener from the third position and may feed the fly cloth and the slide fastener to the fourth position by sewing with the first sewing machine.

The sewing machine may further include a fourth conveying unit that receives the fly cloth and the slide fastener from the fourth position and conveys the fly cloth and the slide fastener to the fifth position along the upper surface of the top plate, and the second sewing machine guide unit may receive the fly cloth and the slide fastener from the fifth position and guide the sewing by the second sewing machine.

The first clip and the second clip may be needle clips for gripping a fly or a slide fastener by inserting and removing a needle from the lower surface, or vacuum clips for sucking the slide fastener by vacuum.

The placket front cloth containing part can also comprise a plurality of surface material boxes for stacking and containing placket front cloth. The zipper storage unit may include a plurality of trays for storing the zippers in an aligned manner.

Effects of the invention

According to the invention, sewing operation of a sewing worker is not needed, and personnel of the sewing worker is not needed to be ensured. In addition, since the sewing of the flap fastener fitting can be automated without manual work by a sewing worker, the quality of the flap fastener fitting can be stabilized, and the amount of sewing can be increased.

Drawings

Fig. 1(a) and 1(b) are views illustrating a zipper assembly with a flap of jeans.

Fig. 2 is a front view of the sewing device of the present embodiment.

Fig. 3 is a plan view of the sewing device of the present embodiment.

Fig. 4 is a right side view of the sewing device of the present embodiment.

Fig. 5 is a rear view of a main part of the sewing apparatus of the present embodiment.

Fig. 6 is a plan view of a main part of the sewing apparatus of the present embodiment.

Fig. 7 is a sectional view of the sewing device of the present embodiment.

Fig. 8 is a flowchart for explaining a series of operations of the sewing apparatus according to the present embodiment.

Fig. 9(a) to 9(e) are plan views showing changes in the shape of the fly fabric.

Fig. 10(a) and 10(b) are plan views explaining the positioning operation of the fly fabric positioning portion.

Fig. 11(a) to 11(d) are plan views for explaining the positioning operation of the fastener positioning portion.

Fig. 12(a) to 12(d) are plan views for explaining the guiding operation of the second sewing machine guide.

In the figure:

10-sewing device, 11-stand, 12-top plate, 13-first sewing machine, 14-second sewing machine, 20-fly storage, 30-fly supply transport, 40-fly positioning, 50-first transport, 51-first presser, 60-zipper storage, 80-zipper supply transport, 90-second transport, 91-second presser, 92-third presser, 100-first sewing machine guide, 101-fourth presser, 110-third transport, 111-fifth presser, 120-second sewing machine guide, 121-sixth presser, 130-fourth transport, 131-seventh presser, 211-fly, 212-zipper, P1-P6-position of fly in each process.

Detailed Description

Next, the sewing device according to the present embodiment will be described in detail with reference to the drawings. The sewing device of the present embodiment sews the placket fastener accessory of jeans, which are jeans as jeans of jeans fabric, and it is assumed that the process from picking up the placket and the fastener as materials to sewing the placket and the fastener is automated. The present embodiment is not limited to this, and can be applied to sewing of a zipper accessory with a placket, for example, other than jeans, such as casual pants.

Fig. 2 is a front view of the sewing device of the present embodiment. Fig. 3 is a plan view of the sewing device of the present embodiment. Fig. 4 is a right side view of the sewing device of the present embodiment. In the sewing device 10 of the present embodiment, a top plate 12 having an upper surface extending in a substantially horizontal direction is supported at a predetermined height by a mount 11. The upper surface of the top plate 12 is smoothly formed so that the fly 211 can slide. A first sewing machine 13 for attaching the zipper 212 to the fly cloth 211 and a second sewing machine 14 for processing the cloth end of the fly cloth 211 are provided on the upper surface of the top plate 12. An opening 12a is formed at a predetermined position of the top plate 12, and a container, not shown, for receiving the sewn flap fastener fitting 210 is provided directly below the opening 12 a.

The first sewing machine 13 can attach the slide fastener 212 to the fly 211 by flat sewing with two needles. The second sewing machine 14 can perform overlock sewing with three or four needles while cutting the cloth end of the fly 211 with a cutter.

For convenience of explanation, as shown in the plan view of fig. 3, XY directions are set in a substantially horizontal plane in which the top plate 12 extends as follows: the direction in which the long-side direction extending from the front edge portion and the rear edge portion of the sewing device 10 and the sewn fly and slide fastener advance is defined as the X direction, and the direction orthogonal to the X direction from the front side to the rear side of the sewing device 10 is defined as the Y direction.

The sewing device 10 of the present embodiment includes: a fly cloth storage section 20 for storing the fly cloth 211; a fly cloth supply conveyance unit 30 for taking out the fly cloth 211 from the fly cloth storage unit 20 and conveying the same; a fly positioning portion 40 provided at the first position P1 of the top plate 12 and positioning the fly 211; a first conveying section 50 that conveys the fly 211 from the first position P1 to the second position P2; a zipper receiving portion 60 for receiving the zipper 212; a zipper supply and conveyance unit 80 for taking out and conveying the zipper 212 from the zipper storage unit 60; and a second conveying unit 90 for positioning and conveying the slide fastener 212 placed on the fly 211 at the second position P2 to the third position P3.

Fig. 5 is a rear view showing a main part of the sewing device 10 of the present embodiment. The fly storage 20 is provided at a predetermined position on a side portion of the rear edge of the mount 11, and includes a first surface box 21 and a second surface box 22 which are arranged adjacent to each other in the X direction. The first fabric box 21 has an opening formed at an upper portion thereof, and can stack and store a plurality of fly cloths 211. Also, the second surface bin 22 is also formed with an opening at the upper portion, and can stack and store a plurality of fly sheets 211. A total of 400 pieces of fly fabric 211, for example, can be stored in the first surface bin 21 and the second surface bin 22.

The first surface box 21 and the second surface box 22 are driven by the driver 29 in the X direction, and one of the first surface box 21 and the second surface box 22 is adjacent to the fly feeding and conveying section 30 protruding from a predetermined position of the rear edge portion of the top plate 12 and is located at a predetermined position where the first clamp 31 of the fly feeding and conveying section 30 can reach. The actuator 29 may also use a pneumatic cylinder. The same applies to the other drivers. In one of the first surface box 21 and the second surface box 22 located at a predetermined position where the first clip 31 can reach, the stored fly 211 is driven by the motor 25 via the arm 26 and a base plate not shown, and moves in the lifting direction.

The fly cloth supply and conveyance unit 30 is provided near the right edge of the top plate 12, and extends in the Y direction from a predetermined position projecting toward the rear edge toward the front edge. The fly feeding and conveying section 30 has a first gripper 31 which is a needle gripper for gripping the fly 211 by inserting and removing the needle 31a from the lower surface. The first clamp 31 is supported by a support plate 35 via a support base 32, driven in the up-down direction by a driver 33, and driven in the Y direction by a driver 34. The support plate 35 extends in a substantially vertical direction, is attached to the top plate 12 via a support column 36, and forms a predetermined gap with the upper surface of the top plate 12. The fly feeding section 30 can take out one fly 211 by gripping it with the first gripper 31 from the first hopper 21 or the second hopper 22, and place it on the first position P1 on the upper surface of the top plate 12.

Fig. 6 is a plan view showing a main part of the sewing device 10 of the present embodiment. The fly positioning portion 40 is disposed at the first position P1. The first position P1 may be adjacent to the fly supply conveyor 30 in the X direction on the upper surface of the top plate 12. The fly positioning portion 40 has a push plate 41 which is driven by the driver 45 in the X direction to push the fly 211 placed at the first position P1 in the X direction. The fly positioning portion 40 includes a pair of first side

close plates

42 and 43 facing each other to close the fly 211 placed at the first position P1 in the Y direction. The first side support plate 42 is driven in the Y direction by an unillustrated driver, and the second side support plate 43 is driven in the Y direction by the driver 47. The fly positioning portion 40 can position the fly 211 placed at the first position P1 in the XY plane.

The first conveying unit 50 has a first pressing plate 51, and the first pressing plate 51 presses and holds the fly 211 with the lower surface. The first platen 51 is driven in the up-and-down direction by a driver 52 and in the X direction by a driver 53 on the top plate 12. The first presser plate 51 may be processed so that the friction of the lower surface is increased or may have irregularities formed on the lower surface in order to press and hold the fly 211. The same applies to the other press plates. The first presser plate 51 can press and hold the fly 211 positioned by the fly positioning portion 40 at the first position P1, and can slide along the upper surface of the top plate 12 and feed it to the second position P2.

The zipper housing 60 is provided at a predetermined position on a side portion of the front edge of the mount 11, and includes a first tray housing 61 and a second tray housing 62 which are adjacently arranged along the X direction. The first tray storage 61 is located directly below the fastener supply and conveyance unit 80 protruding from the front edge of the rack 11 toward the front side. The first tray housing section 61 and the second tray housing section 62 can stack and house a tray 63, and the tray 63 can have a plurality of zippers 212 arranged in a pattern of grooves 63a formed in parallel in the X direction. The trays 63 accommodated in the first tray accommodating section 61 and the second tray accommodating section 62 are supported by the tray support base 72 via the tray support frame 71, and the tray support frame 71 is driven to move up and down by the tray moving mechanism 73. The first tray housing section 61 and the second tray housing section 62 can support the trays 63 from the front side by the wheel conveyors 75 and move in and out.

The tray 63 positioned at the uppermost layer of the first tray housing portion 61 or the second tray housing portion 62 can be held by the tray holding frame 65 positioned directly above the first tray housing portion 61 or the second tray housing portion 62 and movable between the first tray housing portion 61 and the second tray housing portion 62. The tray holding frame 65 can hold one tray 63, and move the held tray 63 up and down and along the X direction. The operation of the tray holding frame 65 can be operated by a button 79 attached to the front edge portions of the first tray housing portion 61 and the second tray housing portion 62.

The tray holding frame 65 can move the tray 63 between the first tray housing 61 and the second tray housing 62 by cooperating with the first tray housing 61 and the second tray housing 62, and can take out a necessary tray 63. When the slide fastener 212 is taken out from the slide fastener storage portion 60, the position of the held tray 63 may be positioned in the XY plane.

Fig. 7 is a cross-sectional view of the sewing machine 10 of the present embodiment, cut along section II-II in the plan view of fig. 2 and section III-III in the plan view of fig. 3. The fastener supply and conveyance unit 80 extends in the Y direction from directly above the first tray storage unit 61 to the rear edge of the top plate 12. The zipper supply and conveyance unit 80 has a second gripper 81 that vacuum-sucks the zipper 212. The second clamp 81 is supported by a support plate 86 via a support table 82, driven in the up-down direction by a driver 83, and driven in the Y direction by a driver 85. The support plate 86 extends in a substantially vertical direction, is attached to the first tray housing portion 61 and the top plate 12 via the support posts 87, and forms a predetermined gap with the upper surfaces of the first tray housing portion 61 and the top plate 12. The fastener supply and conveyance unit 80 can be taken out by gripping one fastener 212 stored in the first tray storage 61 with the second gripper 81 and placed on the fly 211 at the second position P2 on the upper surface of the top panel 12.

Referring to the plan view of fig. 3 and the plan view of the main portion of fig. 6, the second conveying unit 90 has a second presser plate 91 that presses one end of the fly cloth 211 close and a third presser plate 92 that presses the other end of the fly cloth 211 close to the fly cloth 211, in order along the X direction of the longitudinal direction of the fly cloth 211, with respect to the fly cloth 211 and the slide fastener 212 sequentially placed on the upper surface of the top plate 12. The second presser 91 and the third presser 92 are configured to press the shape of the fly 211 while avoiding a half of the front surface side in the Y direction in the short side direction of the fly 211 and the slide fastener 212. The second platen 91 and the third platen 92 are supported by a common support base 95, and are driven in the up-and-down direction by

drivers

93 and 94, respectively, with respect to the support base 95. The support table 95 is driven in the X direction on the top plate 12 by a driver 96.

The second conveying unit 90 includes a pair of second side abutting plates (not shown in fig. 3 and 6) facing each other, and the second side abutting plates position the zipper fastener 212 placed on the fly 211 in the Y direction by abutting the teeth of the zipper fastener with the fly 211 held in compression by the second presser plate 91 and the third presser plate 92. The second side support plate is also supported by a support base 95 common to the second platen 91 and the third platen 92, and is driven in the elevation direction and the Y direction by a driver, not shown. By positioning the slide fastener 212 in the Y direction using the second side close plate, the slide fastener 212 is positioned with respect to the fly 211.

The second conveying unit 90 is capable of pressing and holding the fly cloth 211 and the slide fastener 212 sequentially placed on the upper surface of the top plate 12 at the second position P2 with the second presser plate 91 and the third presser plate 92, positioning and holding the slide fastener 212 by abutting the side with the second side abutting plate, and conveying the fly cloth 211 and the slide fastener 212 to the third position P3. While the second conveying unit 90 conveys the fly 211 and the slide fastener 212 from the second position P2 to the third position P3, the second presser plate 91 and the third presser plate 92 can hold the fly 211, and the second side fence can grip the slide fastener 212, thereby maintaining the positioning of the slide fastener 212 with respect to the fly 211.

Referring to fig. 3, the sewing device 10 of the present embodiment includes: a first sewing machine 13 for attaching the slide fastener 212 to the fly 211; a first sewing machine guide 100 for guiding the fly fabric 211 and the slide fastener 212 from the third position P3 to the fourth position P4, and attaching the slide fastener 212 to the fly fabric 211 by the first sewing machine 13; a third conveying unit 110 for conveying the fly fabric 211 and the slide fastener 212 from the fourth position P4 to the fifth position P5; a second sewing machine 14 for processing the cloth end of the fly cloth; a second sewing machine guide 120 for guiding the fly 211 and the slide fastener 212 from the fifth position P5 to the sixth position P6 so that the processing of the cloth edge of the fly 211 can be performed by the second sewing machine 14; and a fourth conveying section 130 for conveying the fly 211 and the slide fastener 212 from the sixth position P6.

The first sewing machine guide 100 has a fourth presser plate 101, and the fourth presser plate 101 holds the fly cloth 211 and the slide fastener 212 by pressing with the lower surface. The fourth presser plate 101 is configured to press the fly cloth 211 and the slide fastener 212 while avoiding a half of the back surface side along the Y direction in the short side direction of the fly cloth 211 and the slide fastener 212. The fourth presser plate 101 presses and holds the fly cloth 211 and the slide fastener 212, maintains the positioning of the slide fastener 212 with respect to the fly cloth 211, and can guide the fly cloth 211 and the slide fastener 212 from the third position P3 to the fourth position P4 so that the tape on the back side passes directly under the needle of the first sewing machine 13 along the Y direction of the slide fastener 212, so that the first sewing machine 13 can attach the slide fastener 212 to the fly cloth 211.

The third conveying unit 110 includes a fifth presser plate 111, and the flap 211 and the slide fastener 212 are held by the fifth presser plate 111 by being pressed by the lower surface. The fly cloth 211 and the slide fastener 212 are members obtained by attaching the slide fastener 212 to the fly cloth 211 by the first sewing machine 13. The fifth presser plate 111 is configured to press the fly cloth 211 and the slide fastener 212 in the short side direction of the fly cloth 211 and the slide fastener 212 while avoiding the half of the front side in the Y direction.

The fifth platen 111 is supported by a support table 114, driven in the up-down direction by a driver 112, and driven in the X direction by a driver 113. The support table 114 has a predetermined height from the upper surface of the top plate 12 with a predetermined gap formed therebetween. The fifth presser 111 can press and hold the fly 211 and the slide fastener 212, and convey to the fifth position P5.

Referring also to fig. 2, the second sewing machine guide 120 includes a sixth presser plate 121, and the sixth presser plate 121 presses and holds the fly cloth 211 and the slide fastener 212 with the lower surface. The sixth presser plate 121 may press the fly cloth 211 and the slide fastener 212 in such a manner as to expose the cloth end of the fly cloth 211 processed by the second sewing machine 14. The sixth platen 121 is driven in the rotation direction by a motor 122, in the elevation direction by a driver 123, in the X direction by the driver 123, and in the Y direction by a driver 124 on the top plate 12. The second sewing machine guide 120 can guide the fly cloth 211 and the slide fastener 212 from the fifth position P5 to the sixth position P6 in such a manner that a predetermined portion of the fly cloth 211, which is a cloth end, passes directly under the second sewing machine 14, so that the second sewing machine 14 can handle the cloth end of the fly cloth 211. The second sewing machine guide 120 can guide the fly cloth 211 along a straight line, an arc, a combination thereof, or an arbitrary curved trajectory by sliding the fly cloth 211 in the XY direction and the rotation direction on the upper surface of the top plate 12 by the sixth presser plate 121, and can process the cloth edge by the second sewing machine 14.

The fourth conveying unit 130 has a seventh presser 131, and the seventh presser 131 presses and holds the fly sheet 211 and the slide fastener 212. The seventh presser plate 131 is driven in the up-and-down direction by the driver 132 and in the Y direction by the driver 133 on the top plate 12. The seventh presser plate 131 can receive the fly cloth 211 and the slide fastener 212, which are placed at the sixth position P6 and whose cloth ends are processed by the second sewing machine 14, and can feed them to the opening 12a of the top panel 12.

The sewing device of the present embodiment has a control unit, not shown. The control unit is provided with a control device for controlling a series of operations of the sewing device 10. The control device may also perform sequence control. The control device may be operated by a control panel not shown.

Fig. 8 is a flowchart illustrating a series of operations of the sewing device 10 according to the present embodiment. Fig. 9 is a plan view showing a change in the shape of the fly cloth. In step S1, the fly cloth 211 is supplied. The step of supplying the fly cloth 211 is performed by the fly cloth storage section 20 and the fly cloth supply conveyor 30 of the sewing device 10.

In order to perform the step of supplying the fly cloth 211, the fly cloth 211 is stacked and stored in the first hopper 21 and the second hopper 22 of the fly cloth storage unit 20. Fig. 9(a) shows the fly 211 stored in the first hopper 21 and the second hopper 22 in the XY plane. The fly 211 is made of a denim fabric, and has a substantially rectangular shape with the X direction as the long side direction and the Y direction as the short side direction, as shown in fig. 9 (a). The fly cloth 211 may be stacked in such a manner that the upper surface is the front surface of the fabric and the lower surface is the back surface of the fabric.

One of the first surface box 21 and the second surface box 22, which is adjacent to the fly feeding conveyor 30 and is located at a predetermined position where the first clip 31 of the fly feeding conveyor 30 can reach, is in an operating state in which the fly 211 is taken out by the fly feeding conveyor 30, and the other is in a standby state. Even if one of the first surface box 21 and the second surface box 22 is in an operating state, the other side in the standby state does not interact with the fly feeding conveyor 30, and therefore the fly 211 can be replenished freely.

Since the sewing device 10 of the present embodiment includes the first surface box 21 and the second surface box 22, while one is operated to feed a material, the other is in a standby state. By alternately repeating the operating state and the standby state while the fly cloth 211 is set in the standby state, the fly cloth 211 can be supplied without interruption without interrupting the operation for replenishing the fly cloth 211 to the fabric box.

In one of the first hopper 21 and the second hopper 22 in the operating state, the first gripper 31 of the fly feeding conveyor 30 grips and lifts the fly 211 piece by piece. In the present embodiment, the first clip 31 is a needle clip, and therefore the needle 31a is inserted into one piece of material on the top of the stacked fly 211 and held.

In the present embodiment, by using the needle clip for the first clip 31, the needle 31a can be inserted into one piece of the top of the stacked fly sheets 211 and reliably held. The first clip 31 is not limited to a needle clip, and other types such as a vacuum clip may be used depending on the fabric of the fly 211.

In one of the first surface box 21 and the second surface box 22 in the operating state, the top of the fly sheet 211 may be raised to a reference height substantially equal to the upper surface of the top plate 12. It is also possible to grip a piece of material on top of the stacked fly 211 when the first clip 31 descends and reaches the reference height.

When one piece of the fly cloth 211 is gripped, the first clip 31 rises together with the gripped fly cloth 211, moves in the Y direction to a position just above the first position P1 of the fly cloth positioning portion 40, descends to a predetermined distance from the upper surface of the top plate 12, and releases the fly cloth 211 so as to be placed on the first position P1. The fly cloth 211 may be stacked in such a manner that the upper surface is the front surface of the fabric and the lower surface is the back surface of the fabric. Since the first clip 31 of the present embodiment is a needle clip, the fly 211 is released by retracting the needle 31a gripped by inserting the fly 211. The first clip 31 may be raised to a predetermined height after releasing the fly 211.

In step S2, the fly cloth 211 is positioned. Fig. 10 is a diagram illustrating positioning of the fly 211. In the sewing device 10, the step of positioning the fly cloth 211 is executed by the fly cloth positioning portion 40. Fig. 10(a) is a plan view showing a state where the fly 211 is placed at the first position P1 on the fly positioning portion 40. The push plate 41 driven in the X direction by the driver 45 is located at the retracted position. The pair of

first side plates

42, 43 driven by the

drivers

46, 47 in the Y direction, respectively, are also in the retracted positions, respectively. The fly 211 placed at the first position P1 has an orientation in the XY plane as shown in fig. 9 (a).

Fig. 10(b) is a plan view showing a state where the fly 211 is positioned in the fly positioning portion 40. The push plate 41 protrudes to a predetermined position in the X direction, and pushes one end of the fly cloth 211 in opposed contact to be positioned along the X direction. The

first side plates

42 and 43 project to predetermined positions in the Y direction, respectively, and position side ends of the fly cloths in opposed contact with each other in the Y direction while abutting against each other. The positioned fly 211 has the same orientation as that of fig. 9(b) in the XY plane.

In the fly positioning portion 40 of the present embodiment, the push plate 41 is movable in the X direction, and the

first side plates

42 and 43 are movable in the Y direction. Therefore, the fly cloths 211 of different sizes can be easily handled by appropriately moving the push plate 41 and the

first side plates

42 and 43.

When the fly 211 is positioned, the first presser plate 51 of the first conveying section 50 holds the fly 211 with the lower surface being pressed. The first presser plate 51 is configured to press the fly cloth 211 in the short side direction thereof while avoiding the half of the rear side in the Y direction. When the fly 211 is held by the first presser plate 51, the push plate 41 and the

first side plates

42, 43 return to the original retracted positions.

The first platen 51 moves the fly 211 forward in the X direction by sliding it on the upper surface of the top plate 12, and conveys it to the second position P2. Fig. 6 shows the fly 211 conveyed to the second position P2 by the first presser plate 51. The fly 211 conveyed to the second position P2 also has the same orientation as in fig. 9(b) in the XY plane.

Fig. 11 is a plan view illustrating the operation of the second conveying unit 90. As shown in fig. 11(a), the fly 211 conveyed to the second position P2 by the first conveying section 50 is received by the second conveying section 90, and is held by being pressed by the lower surfaces of the second pressing plate 91 and the third pressing plate 92. When the fly cloth 211 is received by the second conveying section 90, the first conveying section 50 releases the fly cloth 211. The first presser plate 51 ascends and releases the fly cloth 211.

The fly cloth 211 is sequentially pressed and held by the second presser plate 91 and the third presser plate 92 in the X direction in the longitudinal direction with one end thereof being close to the other end thereof. The second presser plate 91 and the third presser plate 92 are configured to press the fly 211 in the short side direction of the fly 211 while avoiding the half of the front side in the Y direction.

In step S3, the slide fastener 212 is supplied. The step of supplying the zipper 212 is performed by the zipper storage section 60 and the zipper supply and conveyance section 80 of the sewing device 10. In order to perform the step of supplying the zippers 212, the first tray housing portion 61 of the zipper housing portion 60 is set to stack and house the tray 63, and the plurality of zippers 212 are arranged along the pattern of the grooves 63a formed in parallel in the tray 63. Fig. 9(b) shows the slide fastener 212 disposed on the tray 63 in the first tray housing portion 61 and the second tray housing portion 62 in the XY plane. The zipper 212 may be disposed such that the upper surface is a front surface and the lower surface is a back surface.

In the zipper housing portion 60, the tray 63 positioned at the uppermost layer stacked in the first tray housing portion 61 and the second tray housing portion 62 can be held by the tray holding frame 65. Further, the tray holding frame 65 allows the held tray 63 to be stacked on the uppermost tray 63 of the first tray housing section 61 and the second tray housing section 62. The tray holding frame 65 can move the held tray 63 in the X direction so that the second clip 81 of the zipper supply and transport unit 80 can reach the zipper 212 disposed at a predetermined position of the held tray 63.

In the present embodiment, one tray 63 gripped by the tray gripping frame 65 is in an operating state in which the zipper 212 is supplied by the zipper supply conveyor unit 80. Since the other trays stored in the first tray storage 61 and the second tray storage 62 are in a standby state and do not interact with the fastener supply conveyance unit 80, the other trays can be freely taken in and out from the first tray storage 61 and the second tray storage 62. Therefore, the operation is not interrupted by the first tray housing portion 61 or the second tray housing portion 62 coming in and out of the tray 63, and the slide fastener 212 can be supplied without interruption.

Further, in the present embodiment, since the first tray housing section 61 and the second tray housing section 62 are provided, for example, the trays 63 in which the zippers 212 are arranged are put into the first tray housing section 61 and are conveyed to the tray holding frame 65, the tray holding frame 65 conveys the empty trays 63 in which all the arranged zippers 212 are taken out to the second tray housing section 62, and the empty trays 63 are taken out from the second tray housing section 62, so that the trays 63 can be moved in one direction from the first tray housing section 61 to the second tray housing section 62. The first tray housing section 61 is used for receiving the tray 63, and the second tray housing section 62 is used for taking out the tray 63, so that the work can be easily performed.

In the tray 63 gripped by the tray gripping frame 65 positioned directly above the first tray housing section 61, the second gripper 81 of the fastener supply conveyor section 80 grips and lifts the fasteners 212 one by one. In the present embodiment, the second clip 81 is configured as a vacuum clip, and therefore, the slide fastener 212 is gripped by vacuum suction.

In the present embodiment, by using the vacuum clip for the second clip 81, the slide fastener 212 including the teeth and having a thickness can be reliably held regardless of the thickness. The second clip 81 is not limited to a vacuum clip, and other types such as a needle clip may be used depending on the type of the slide fastener 212.

The tray holding frame 65 can move in the X direction together with the held tray 63 so that the second clip 81 reaches the zipper 212 to be held. For example, the tray holding frame 65 may move the held tray 63 so that the zipper 212 to be held by the second clip 81 is positioned directly below the zipper supply conveyor unit 80.

When the second clip 81 grips the slide fastener 212, it rises together with the gripped slide fastener 212, moves in the Y direction to a position just above the second position P2, descends to a predetermined distance from the upper surface of the top panel 12, and releases the slide fastener 212 so as to be placed on the second position P2. At the second position P2, the fly cloth 211 pressed and held by the second presser plate 91 and the second presser plate 92 of the second conveying unit 90 is placed, and the slide fastener 212 is placed on the fly cloth 211.

Since the second clip 81 of the present embodiment is a vacuum clip, the zipper 212 is released by stopping the suction of the zipper 212 by the vacuum. The second clip 81 may also be raised to a predetermined height after releasing the zipper 212. The fly 211 and the slide fastener 212 at the second position P2 are as shown in fig. 9(c) in the XY plane.

As shown in fig. 11(b), the slide fastener 212 is placed substantially at the center of the upper surface of the fly cloth 211 so that the X direction is the longitudinal direction, and the fly cloth 211 is pressed and held by the lower surfaces of the second presser plate 91 and the third presser plate 92 so that the X direction is the longitudinal direction at the second position P2. Here, the second presser plate 91 and the third presser plate 92 have a structure avoiding the slide fastener 212 mounted on the upper surface of the fly 211.

In step S4, the zipper 212 is positioned. In the sewing device 10, the step of positioning the slide fastener is performed by the second conveying section 90. As shown in fig. 11(d), at the second position P2, a pair of

second side plates

98 and 99 facing each other are respectively mounted on one side and the other side of the belt-like element of the slide fastener 212 mounted on the upper surface of the fly 211, and one end of the fly 211 is pressed and held by the second presser plate 91 and the other end is pressed and held by the lower surface of the third presser plate 92.

Second edge plates

98, 99 are shown in cross-section. Then, as shown in fig. 11(d), the second

side abutting plates

98 and 99 are slid on the upper surfaces of the one and the other tapes to abut the teeth, and the slide fastener 212 is positioned by positioning the teeth in the Y direction. By this positioning of the zipper 212, the zipper 212 is positioned relative to the fly 211.

The second conveying unit 90 moves the fly in the X direction by sliding on the upper surface of the top plate 12 in a state where the fly is held in compression by the lower surfaces of the second presser plate 91 and the third presser plate 92 and the teeth of the slide fastener 212 are held in abutment for positioning by the

second abutment plates

98 and 99, and conveys the fly to the third position P3.

In the present embodiment, the zipper 212 is positioned by abutting the teeth of the zipper 212 with the pair of second

side abutting plates

98 and 99 facing each other. Therefore, even for the slide fastener 212 of different sizes, positioning can be easily performed by abutting the side similarly. In addition, in the second conveying section 90, since the positioning operation of the slide fastener 212 and the operation of conveying the flap cloth 211 and the slide fastener 212 to the third position P3 are performed at the same time, the mechanism corresponding to these operations can be downsized.

In step S5, the slide fastener 212 is attached to the fly cloth 211. The process of attaching the zipper 212 to the fly 211 is performed by the first sewing machine guide 100 and the first sewing machine 13 of the sewing device 10.

Referring to fig. 3, the fly cloth 211 and the slide fastener 212 conveyed to the third position P3 by the second conveying section 90 are received by the first sewing machine guide section 100. When the fly cloth 211 and the slide fastener 212 are received by the first sewing machine guide 100, the second conveying section 90 releases the fly cloth 211 and the slide fastener 212. The second presser plate 91 and the third presser plate 92 of the second conveying section 90 rise to release the fly 211, and the

second side plates

98 and 99 separate to release the teeth of the held slide fastener 212.

The first sewing machine guide 100 presses and holds the front side in the Y direction along the short side direction of the fly 211 and the slide fastener 212 against the fly 211 held by the lower surfaces of the second presser plate 91 and the third presser plate 92 of the second feeding unit 90 and the slide fastener 212 held by the

second side plates

98 and 99 at the third position P3 so as to avoid the second presser plate 91, the third presser plate 92 and the

second side plates

98 and 99 by the lower surface of the fourth presser plate 101. The fly 211 and the slide fastener 212 held by the fourth platen 101 at the third position P3 are as shown in fig. 9(c) in the XY plane.

The first sewing machine guide 100 holds the fly cloth 211 and the slide fastener 212 by pressing with the lower surface of the first presser plate 101, guides the fly cloth 211 and the slide fastener 212 to advance in the X direction from the third position P3 to the fourth position P4 with respect to the first sewing machine 13 so as to slide on the upper surface of the top plate 12, and sews the belt-like member on the back side to the fly cloth 211 along the Y direction of the slide fastener 212 by parallel sewing with two needles along a straight line 213 extending in the X direction along the longitudinal direction of the fly cloth 211 and the slide fastener 212 as shown in fig. 9 (d). The fourth presser plate 101 guides the fly 211 and the slide fastener 212 so that a straight line 213 that stitches a tape of the slide fastener 212 to the fly 211 passes at a predetermined speed directly below the needle of the first sewing machine 13. The fly cloth 211 with the zipper 212 sewn thereto at the fourth position P4 is as shown in fig. 9(d) in the XY plane.

The third feeding unit 110 receives the fly cloth 211 and the slide fastener 212 which are fed to the fourth position P4 by the first sewing machine guide 100. When the fly cloth 211 and the slide fastener 212 are received by the third conveying part 110, the first sewing machine guide part 100 releases the fly cloth 211 and the slide fastener 212. The fourth presser plate 101 of the first sewing machine guide 100 is lifted to release the fly cloth 211 and the slide fastener 212.

The third conveying unit 110 presses and holds the flap 211 and the slide fastener 212, which are pressed and held by the lower surface of the fourth presser plate 101 of the first sewing machine guide 100 at the fourth position P4, against the lower surface of the fifth presser plate 111 so as to avoid the fourth presser plate 101, and holds the back surface side along the Y direction of the short side direction of the flap 211 and the slide fastener 212. The fly 211 and the slide fastener 212 held by the fifth presser plate 111 at the fourth position P4 are as shown in fig. 9(d) in the XY plane.

The fifth platen 111 is moved to a fifth position P5 by holding the fly 211 and the slide fastener 212 in a pressed state by the lower surface, and moving them forward in the X direction while sliding on the upper surface of the top plate 12. The fly 211 and the slide fastener 212 at the fifth position P5 are as shown in fig. 9(d) in the XY plane.

In step S6, the cloth edge of the fly cloth 211 is processed. The process of processing the cloth end of the fly cloth 211 is performed by the second sewing machine guide 120 and the second sewing machine 14 of the sewing device 10.

The second sewing machine guide 120 receives the fly 211 and the slide fastener 212 conveyed to the fifth position P5 by the third conveying unit 110. When the fly cloth 211 and the slide fastener 212 are received by the third conveyance section 110, the third conveyance section 110 releases the fly cloth 211 and the slide fastener 212. The fifth presser plate 111 of the third conveyance unit 110 ascends to release the fly cloth 211.

The sixth presser 121 of the second sewing machine guide 120 presses and holds the front side in the Y direction along the short side direction of the fly 211 and the slide fastener 212 with the lower surface so as to avoid the fifth presser 111, against the fly 211 and the slide fastener 212 pressed and held by the lower surface of the fifth presser 111 of the third feed unit 110 at the third position P5. The fly 211 and the slide fastener 212 held by the sixth presser plate 121 at the fifth position P5 are as shown in fig. 9(d) in the XY plane.

Fig. 12 is a diagram illustrating the operation of the second sewing machine guide 120. As shown in fig. 12(a), the sixth presser 121 presses and holds the front side of the fly cloth 211 and the Y direction along the short side direction of the slide fastener 212 by the lower surface, and exposes the rear side along the Y direction and exposes one end side along the X direction in the long side direction.

As shown in fig. 12(b), the sixth presser plate 121 is guided as follows: the fly cloth 211 and the slide fastener 212 held by the lower surface are slid along the upper surface of the top plate 12 and advanced toward the second sewing machine 14 while rotating, and by the second sewing machine 14, a cloth end is cut with a cutter so as to draw an arc along the Y direction at the side portion of the back surface side from one end of the fly cloth 211, and is subjected to overlock sewing with three needles or four needles. The sixth presser plate 121 guides the fly cloth 211 and the slide fastener 212 so that the fly cloth 211 passes directly under the needle of the second sewing machine 14 at a speed synchronized with that of the second sewing machine 14 so as to describe an arc.

As shown in fig. 12(c) and 12(d), when the arc-shaped lockstitch 214 is formed in the fly 211, the sixth presser plate 121 is guided as follows: the lockstitch 214 formed so as to draw an arc is continued, and the fly cloth 211 and the slide fastener 212 are advanced in the longitudinal direction to the front side along the Y direction, so that the lockstitch 214 is formed on the side portion of the fly cloth so that the fly cloth 211 passes directly under the needle of the second sewing machine 14 along a straight line at a speed synchronized with the second sewing machine 14.

When the processing of the cloth end of the fly sheet 211 shown in fig. 12(a) to 12(d) is completed, the sixth presser plate 121 guides the fly sheet 211 and the slide fastener 212 to the sixth position P6. When the flap 211 and the slide fastener 212 are guided to the sixth position P6, the sixth presser 121 is raised to place the flap 211 and the slide fastener 212 in the sixth position P6, and releases the flap 211 and the slide fastener 212. The flap 211 and the slide fastener 212 placed at the sixth position P6 form a flap-equipped fastener fitting 210 in the XY plane as shown in fig. 9 (e).

In the present embodiment, the sixth presser plate 121 of the second sewing machine guide 120 can be driven in the XY direction and the rotational direction. Therefore, the fly cloth 211 can be guided with respect to the second sewing machine 14 in such a manner that the cloth end of the fly cloth 211 is processed in a desired shape. In addition, the fly cloth can easily correspond to fly cloths of different sizes.

The fourth feeding unit 130 presses and holds the fly cloth 211 and the slide fastener 212 placed at the sixth position P6 by the second sewing guide 120 with the seventh presser plate 131, and feeds the fly cloth 211 and the slide fastener 212 to the front side in the Y direction while sliding on the upper surface of the top plate 12, so that the fly cloth 211 and the slide fastener 212 reach the opening 12a of the top plate 12. The fly 211 and the slide fastener 212 reaching the opening 12a fall from the top plate 12 and are received in a container not shown.

Through a series of steps S1 to S6, a flap fastener accessory can be sewn from the flap cloth 211 and the slide fastener 212 as materials. The sewing of the zipper accessory with the placket is automated without manual work, so that the quality of the zipper accessory with the placket is stable, and the sewing amount is increased.

In the present embodiment, the operation of the sewing device 10 can be performed in parallel and without interruption by performing the steps of the supply of the fly cloth 211 at step S1, the positioning of the fly cloth 211 at step S2, the supply of the slide fastener 212 at step S3, the positioning of the slide fastener 212 at step S4, the attachment of the slide fastener 212 to the fly cloth 211 at step S5, and the processing of the cloth edge of the fly cloth 211 at step S8, which are shown in the flowchart of fig. 8, in synchronization with each other at predetermined time intervals. The time may be set based on the speed at which the first sewing machine 13 and the second sewing machine 14 sew the fly 211 and the slide fastener 212.

The sewing device 10 of the present embodiment can easily cope with the fly cloth 211 and the slide fastener 212 of different sizes by switching the fly cloth 211 and the slide fastener 212. For example, the sewing of a placket zip fitting may correspond to 27 inches to 42 inches for jeans, casual pants. In addition, the cloth end of the fly cloth 211 can be sewn into different shapes by switching the sewing shape.

In the sewing device 10 of the present embodiment, the switching between the sizes of the fly cloth 211 and the slide fastener 212 is performed by replacing the first and

second head boxes

21 and 22 in which the fly cloth 211 is stored and the tray 63 in which the slide fastener 212 is arranged, and switching the set values of the fly cloth positioning portion 40 for positioning the fly cloth 211 and the pair of

second side plates

98 and 99 for positioning the slide fastener 212. For example, the zipper widths 29mm and 32mm can be switched. The sewing shape of the fly 211 is changed by changing the setting of the first sewing machine guide 100 for the sewing length of the butt stitch of the fly 211 to which the slide fastener 212 is attached, and changing the setting of the second sewing machine guide 120 for the shape of the lockstitch of the cloth end of the fly 211 to be processed. The change of the setting can be performed by calling the size and sewing pattern stored in the control unit, not shown.

Claims

1. A sewing device for sewing a placket fastener accessory with a placket of trousers by a placket cloth and a zipper, the sewing device is characterized by comprising:

a stand having a top plate;

a front fly cloth storage unit which is mounted on a side of the stand, has an open upper portion, and stores front fly cloth in a stacked manner;

a zipper receiving part which is installed at the side part of the stand and comprises a tray for arranging and receiving the zipper;

a first clip for taking out the fly cloth stored in the fly cloth storage section one by one and placing the fly cloth at a first position of the top plate;

a fly cloth positioning portion that positions the fly cloth placed at the first position;

a first conveying unit that conveys the positioned fly cloth from the first position to a second position of the top plate along an upper surface of the top plate;

a second clip for taking out the zippers stored in the zipper storage part one by one and placing the zippers on the positioned fly cloth;

a zipper positioning part for positioning the zipper placed on the positioned fly cloth;

a first sewing machine for attaching the slide fastener to the fly cloth;

a first sewing machine guide portion that guides the fly fabric and the slide fastener, which are positioned along the upper surface of the top plate by the first sewing machine, so that the slide fastener can be attached to the fly fabric by the first sewing machine;

a second sewing machine for processing the cloth end of the fly cloth; and

and a second sewing machine guide part which guides the placket fabric provided with the zipper along the upper surface of the top plate to the second sewing machine so that the second sewing machine can process the cloth end of the placket fabric.

2. The sewing apparatus of claim 1,

the zipper is arranged on the front fly cloth through a flat seam by the first sewing machine.

3. Sewing device as claimed in claim 1 or 2,

the second sewing machine guides the movement and rotation of the placket front cloth with the zipper mounted therein within a plane extending from the upper surface of the top plate, cuts the placket front cloth so that the cloth end of the placket front cloth has a predetermined shape, and performs serging.

4. The sewing apparatus of claim 3,

the predetermined shape includes at least one of a straight line and a circular arc.

5. The sewing apparatus of claim 3,

the predetermined shape includes a shape obtained by an arbitrary curve.

6. Sewing device as claimed in any of the claims 1, 2, 4 and 5,

the fly positioning portion includes a push plate that pushes the fly in a predetermined direction within a plane extending from an upper surface of the top plate, and a pair of first side close plates that are opposed to each other and close the fly in a direction substantially orthogonal to the predetermined direction.

7. Sewing device as claimed in any of the claims 1, 2, 4 and 5,

the zipper positioning part comprises a pair of opposite second side close plates which enable the zipper arranged on the positioned fly cloth to be opposite to the tooth side close.

8. Sewing device as claimed in any of the claims 1, 2, 4 and 5,

still include the second conveying part, this second conveying part is followed fly's fly cloth and zip fastener are received to the second position, and follow the upper surface of roof carries to the third position, the second conveying part includes zip fastener location portion.

9. The sewing apparatus of claim 8,

the first sewing machine guide receives the fly cloth and the slide fastener from the third position, and conveys the fly cloth and the slide fastener to a fourth position by sewing with the first sewing machine.

10. The sewing apparatus of claim 9,

the second sewing machine further comprises a fourth conveying part which receives the fly fabric and the zipper from the fourth position and conveys the fly fabric and the zipper to a fifth position along the upper surface of the top plate, and the second sewing machine guiding part receives the fly fabric and the zipper from the fifth position and guides the sewing of the second sewing machine.

11. Sewing device as claimed in any of the claims 1, 2, 4, 5, 9 and 10,

the first clip and the second clip are needle clips for holding a fly cloth by inserting and removing a needle from a lower surface, or vacuum clips for attaching a slide fastener by vacuum.

12. Sewing device as claimed in any of the claims 1, 2, 4, 5, 9 and 10,

the front fly cloth storage part comprises a plurality of surface material boxes for storing front fly cloth in a stacking mode.

13. Sewing device as claimed in any of the claims 1, 2, 4, 5, 9 and 10,

the zipper receiving portion includes a plurality of trays for receiving the zippers in an aligned manner.