WO2019073922A1 - Sewing machine - Google Patents

Abstract

This sewing machine 100, which sews an interlocking element coupled body 13 of a slide fastener 10 to an end edge part 2a of an article 2 to be sewn, said interlocking element coupled body being obtained by coupling a plurality of interlocking elements 11 using a string-like body 12, is provided with: a fabric feeding mechanism for feeding the article to be sewn; and a fastener conveyance mechanism 40 for conveying the interlocking element coupled body. The fastener conveyance mechanism is provided with: a conveyance gear 41 provided with teeth which interlock with the interlocking elements of the interlocking element coupled body; a conveyance motor 42 which imparts rotational motion to the conveyance gear; and a fastener guide 24 which guides the interlocking element coupled body in the same direction as the feeding direction of the article to be sewn. Accordingly, excellent sewing of the slide fastener can be performed.

Description

sewing machine

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a sewing machine that sews on a slide fastener in which an occlus is connected by a cord.

There has been proposed a slide fastener including a pair of occlus connectors connected with a plurality of occluss by cords and a slider for connecting and separating the pair of connectors.
The articulator of this slide fastener has a leg fixed to the string-like body and a head bite with each other when connecting the pair of articulator combinations, and the respective occlus of each occlus combination Is fixed to the string-like body with its head directed in the same direction uniformly (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 40-13870

In the slide fastener, the occlusal joint is sewn onto the end edge portion of the material to be sewn which is a sheet-like material by oversewing with an overlock sewing machine.
However, when sewing the occlusal joint, in order to obtain sufficient restraint force for each occlus after sewing, it is necessary to perform sewing so that the needle drop point is at an appropriate position. Sewing machine could not send the occlusal connector properly.
For this reason, each occlus after sewing could not perform sewing to obtain sufficient restraining force.

An object of the present invention is to provide a sewing machine for properly sewing an occlusal connection body.

The invention according to claim 1 relates to a sewing machine,
It is a sewing machine which sews on the end edge part of a sewing material the occlusal joint of the slide fastener which has the occlusal joint which connected a plurality of occluss by a string-like body,
A cloth feeding mechanism for feeding a workpiece;
And a fastener transfer mechanism for transferring the occlusal connector.
The said fastener conveyance mechanism is the conveyance gear provided with the tooth | gear which bites in the said occlus of the said occlus coupling body,
A transport motor that imparts a rotational motion to the transport gear;
And a fastener guide for guiding the occlusal connector in the same direction as the feed direction of the workpiece.

The invention according to claim 2 is the sewing machine according to claim 1
The transport gear meshing with the articulator on the upstream side of the sewing material in the needle drop position and the transport gear meshing on the bite downstream of the sewing material in the needle drop position. And.

The invention according to claim 3 is the sewing machine according to claim 1 or 2
The fastener guide has a feed groove formed on a needle plate for guiding the plurality of occlus in the joint assembly in the same direction as the feed direction of the article to be sewn.

The invention according to claim 4 is the sewing machine according to any one of claims 1 to 3 in which
It is characterized by providing the fastener holding which suppresses detachment | desorption to the upper direction of the said occlusal coupling body conveyed by the said conveyance gear.

The invention according to claim 5 is the sewing machine according to any one of claims 1 to 4 in which
The transport gear may be movably supported along a direction away from the needle drop position.

The invention according to claim 6 is the sewing machine according to claim 5 wherein
The conveyance gear may be movably supported along a direction away from the needle drop position with the conveyance motor.

The invention according to claim 7 is the sewing machine according to claim 5 or 6,
It is characterized by having an actuator which becomes a drive source of movement operation in the direction away from the needle drop position of the above-mentioned conveyance gear.

The invention according to claim 8 is the sewing machine according to any one of claims 1 to 7:
It is characterized in that a stitch of lock stitch is formed to sew the occlusal connector on an end edge portion of an article to be sewn.

The invention according to claim 9 is the sewing machine according to any one of claims 1 to 8:
It is characterized in that it is a zigzag sewing machine.

The invention according to claim 10 is the sewing machine according to any one of claims 1 to 9:
The sewing machine is
A sewing machine motor that moves the sewing needle up and down,
An encoder for detecting an output shaft angle of the sewing machine motor;
A controller for controlling the transport motor;
The controller is
For each needle drop, the transport motor is driven at a prescribed timing based on the detection of the encoder to move the articulated object in the feed direction to the next needle drop point. It is characterized by

The invention according to claim 11 is the sewing machine according to claim 10,
It has a setting input unit to which parameters including the sewing type, order, number of stitches and movement amount are input,
The control device controls the cloth feeding mechanism and the fastener conveyance mechanism so that sewing is performed according to the parameter input from the setting input unit.

The invention according to claim 12 is the sewing machine according to claim 10 or 11,
The sewing machine is
The needle swing motor is provided to move the sewing needle arbitrarily along the direction orthogonal to the conveying direction of the connector.
The controller is
For each needle drop, the needle swing motor is driven at a prescribed timing based on the detection of the encoder, and the needle swing is performed so that the needle swing amount up to the next needle drop point is obtained.

The invention according to claim 13 is the sewing machine according to any one of claims 10 to 12:
The cloth feed mechanism comprises a feed adjustment motor,
The controller is
For each needle drop, the feed adjustment motor is driven at a prescribed timing based on the detection of the encoder to move the material to be sewn in the feed direction to the next needle drop point It is characterized by

According to the present invention, the fastener conveyance mechanism includes a conveyance gear having teeth engaging with the occlus of the occlusor coupled body, a conveyance motor for imparting a rotational motion to the conveyance gear, and a feed direction of the sewn article along the occlusal coupled body. And a fastener guide for guiding in the same direction.
As a result, since the teeth of the transfer gear are engaged with the head of the continuous articulator of the occlusal joint and conveyed, it is possible to convey the occlusal joint to the target position with arbitrary accuracy. Therefore, it is possible to suitably execute feeding of the occlusal connector for positioning with respect to the needle drop point at which the occlusal connector is sewn, and the sewing operation of the favorable occlusal connector to the workpiece is realized. It is possible to

It is a top view of the slide fastener product which is a first embodiment of the invention. It is an enlarged plan view of a slide fastener product. It is a perspective view of an occlusion child. It is the enlarged plan view which notched partially and showed the biting state of occluss. It is the figure which looked at the needle drop point of the stitch in the occlus connector combination on the left side from the back. It is an enlarged plan view of comparative example (1) of a slide fastener product. It is an enlarged plan view of comparative example (2) of a slide fastener product. It is an enlarged plan view of Example (2) of a slide fastener product. It is an enlarged plan view of Example (3) of a slide fastener product. FIG. 7 is an enlarged plan view of another example of a slide fastener product. It is a perspective view of a zigzag sewing machine which is an embodiment of the invention. It is a perspective view of a needle plate. It is a perspective view around a needle fall position. It is a top view of a fastener conveyance mechanism. It is a rear view of a fastener conveyance mechanism. It is a rear view around a needle drop position. It is a top view in the state where the upper cover of the base plate of a support mechanism and the upper cover of a support arm were removed. It is a schematic diagram which shows the example which applied the pulley with a tooth to a transmission mechanism. It is a rear view of the conveyance mechanism which shows the example which connected the air cylinder which provides movement operation to a base board. It is a rear view of the other example (1) of a fastener conveyance mechanism. It is a right view of another example (1) of a fastener conveyance mechanism. It is a rear view of the example which has arrange | positioned the conveyance gear above the needle plate in the other example (1) of a fastener conveyance mechanism. It is a right side view of the example which has arrange | positioned the conveyance gear above the needle plate in the other example (1) of a fastener conveyance mechanism. It is a rear view of the other example (2) of a fastener conveyance mechanism. It is a top view of the fastener conveyance mechanism mounted in the zigzag sewing machine which is a second embodiment of the invention. It is a rear view of a fastener conveyance mechanism. It is a perspective view of the principal part of a fastener conveyance mechanism. It is a top view of the principal part of a fastener conveyance mechanism. It is a top view of one occlus coupling body of a slide fastener. It is a top view of the other occlus connector combination of a slide fastener. It is a block diagram which shows the control system of the sewing machine which mounts the fastener conveyance mechanism shown in FIG. It is a front view of a setting input part. It is explanatory drawing which shows the setting parameter in the case of sewing the occlus coupling body of the slide fastener of FIG. It is explanatory drawing which showed the needle-falling position with respect to a sewing material and an occlus connector. It is explanatory drawing which showed pattern No. 1 of a sewing pattern. It is explanatory drawing which showed pattern No. 2 of a sewing pattern. It is explanatory drawing which showed pattern No. 3 of a sewing pattern. It is explanatory drawing which showed pattern No. 4 of a sewing pattern. It is explanatory drawing which showed pattern No. 5 of a sewing pattern. It is explanatory drawing which showed pattern No. 6 of a sewing pattern. It is explanatory drawing which showed pattern No. 7 of a sewing pattern. It is explanatory drawing which showed pattern No. 8 of a sewing pattern. It is a selection image of the apparatus pattern displayed on the display screen of a setting input part, when setting the setting parameter regarding sending of an occlusion child coupling body. It is a display image of the display screen of a setting input part at the time of setting the setting parameter regarding sending of an occlusion child combination.

First Embodiment
Hereinafter, a slide fastener product 1 and a zigzag sewing machine 100 suitable for sewing the same according to a first embodiment of the present invention will be described in detail.
FIG. 1 is a plan view of a slide fastener product 1.
In addition, as the slide fastener product 1, clothing, shoes, daily necessities such as whales, and other non-daily necessities are also covered. That is, all products which can use slide fastener 10 for uses, such as connection of sheet-like sewing goods, opening and closing of a notch part and opening of sewing goods, are targeted.

The slide fastener product 1 comprises a slide fastener 10 and a sewn article 2 on which the slide fastener 10 is sewn.
The sewn article 2 of the slide fastener product 1 is intended for all sheet-like materials that can be sewn. For example, cloth, textiles, leather, a synthetic resin etc. are mentioned to-be-sewn goods 2. As shown in FIG.
The material to be sewn 2 is provided with two end edges 2a facing each other, and the end edge 2a is formed with an overlapping portion 2b in which the material of the material to be sewn 2 is folded back to the back side .
Then, a pair of occlus connectors 13 of the slide fastener 10 are sewn separately along each of the end edges 2a along each of the end edges 2a.

In this embodiment, the case where each edge part 2a of the sewing material 2 of the slide fastener product 1 is linear is illustrated. Needless to say, the shape of each end 2a is merely an example, and the slide fastener 10 is applicable even if it has a curved shape or another curved shape.
Then, in the following description regarding the slide fastener product 1 and the slide fastener 10, the direction along the end edge 2a of the article 2 is parallel to the plane of the article to be sewn and is orthogonal to the Y axis direction. The direction is taken as the X-axis direction, and the direction perpendicular to the plane of the workpiece is taken as the Z-axis direction.
Furthermore, a pair of occlus connectors 13 of the slide fastener 10 are sewed on the end edge 2a of the sewn article 2 along the Y-axis direction, and the slider 14 couples these connectors 13 The operation direction (upward in the paper of FIG. 1) is “front”, the operation direction to be separated (downward in the paper of FIG. 1) is “rear”, the left side facing forward is “left”, and the right side is “right " Further, it is perpendicular to the paper surface of FIG. 1 and the front side of the paper surface is “upper”, and the back side of the paper surface is “lower”.
If this definition is followed, in FIG. 1, the workpiece 2 is illustrated with the front surface of the workpiece 2 facing upward and the back surface facing downward.

[Slide fastener]
FIG. 2 is an enlarged plan view of the slide fastener 10.
As shown in FIG. 1 and FIG. 2, the slide fastener 10 couples and separates a pair of occlus connector 13 in which a plurality of occluss 11 are coupled by a string 12 and a pair of occlus connector 13. And a slider 14.
The occlus 11 includes legs 111 through which the cord-like body 12 penetrates, and a head 112 projecting from the leg 111, and a plurality of the occlus 11 face the head 112 in the same direction at equal intervals. It is fixed to the cord-like body 12 to constitute an occlus connector 13.

The cord-like body 12 connecting the respective occluss 11 may be in the form of a cord having high strength and low elasticity, and may be a monofilament, a multifilament, a twisted yarn, a twisted cord or a composite material thereof It can be used, and the structure and type of the cord are not particularly limited.
Moreover, although the string-like body 12 may be a flexible thing which is easy to bend, it may have rigidity of the extent which maintains a straight shape in the state which does not receive external force, having flexibility.

The pair of occlus connector 13 is sewed on each end 2a of the workpiece 2 such that the head portions 112 of the occlus 11 face each other.
The slider 14 is formed at its front end with a guide path through which the respective occlus connector 13 passes individually, and the two guide paths merge inside and form one guide path at the rear end.
That is, when a pair of occlus connectors 13 separated into each guide path on the front end side of the slider 14 enter, the head 112 of each occlus 11 of each occlus connector 13 is engaged and the back of the slider 14 By passing the end, a pair of occlus connectors 13 are connected.
Also, conversely, when a pair of occlus connectors 13 coupled to the guide path on the rear end side of the slider 14 enter, the interlocking state of the head 112 of each occlus 11 of each occlus connector 13 Before being passed through the front end of the slider 14, the pair of occlus connectors 13 are separated.

FIG. 3 is a perspective view of the occlus 11. FIG. 3 shows the occlus 11 of the occlus connector 13 of the left side in FIGS. 1 and 2. In the following description of the occlus 11 according to FIG. 3, each part will be described in the direction of the occlus 11 of the occlus connector 13 on the left side.
In addition, in the case of the occlus 11 of the occlus connector 13 on the right side, the direction of the head 112 is only reversed in the left-right direction, and the structure itself is the same.

The occlus 11 is made of thermoplastic resin such as polyamide, polyacetal, polybromopyrene, polybutylene terephthalate, etc., and is formed integrally with the cord-like body 12 by injection molding with respect to the cord-like body 12 .
Further, the occlus 11 may be formed by die-casting using a metal such as an aluminum alloy, a zinc alloy or a magnesium alloy as well as the thermoplastic resin.

As shown in FIG. 2 and FIG. 3, each occlus 11 is a leg in a state in which the leg portion 111 has a substantially rectangular parallelepiped shape and the string-like body 12 penetrates from one side surface 116 to the other side surface 117 in the width direction. It is fixed to the part 111.
The “width direction of the leg portion 111” indicates a direction along the longitudinal direction of the string-like body 12.
Further, the left end portion of the leg portion 111 is opposed to the end edge portion 2 a of the workpiece 2, and the right end portion has a head portion 112 projecting rightward. Then, on the front and rear sides of the boundary portion between the head portion 112 and the leg portion 111, recessed portions 113 recessed along the Y-axis direction are formed over the entire length in the Z-axis direction.
As a result, the head portion 112 protrudes rightward, but its root portion is narrowed by the concave portions 113 on both sides, and both the front end portion and the rear end portion of the head portion 112 are arc-shaped in plan view It has a bulging shape.
On the other hand, the shape in plan view of each recess 113 conforms to the shape in plan view of the front end portion and the rear end portion of the head portion 112, and has a concave shape in an arc shape.
Therefore, in the coupled state of the pair of occlus connectors 13, the two adjacent occlus connectors 13 with respect to the concave portions 113 on both sides of the head 112 of the occlus 11 of one of the occlus connectors 13. The front end portion or the rear end portion of the head portion 112 of the occlus 11 is fitted.
Thus, in the coupled state of the pair of occlus connectors 13, the head portions 112 of the respective occlus 11 are restrained in the front-rear direction, and the pair of occlus connectors 13 are held so as not to be separated.
In addition, as shown in FIG. 2, although the several occlus 11 of each occlus connector 13 is connected with the string-like body 12 at intervals by fixed space | interval, the interval of each occlus 11 is a pair When connecting the occlus connector 13 to each other, the head 112 of the occlus 11 of each occlus connector 13 is set to a size that fits with the recess 113 of the other occlus connector 13 without a gap. ing.

FIG. 4 is an enlarged plan view showing a state in which the occlusion members 11 are engaged with each other. As shown in FIG. 3 and FIG. 4, a concave groove 114 along the Y-axis direction is formed at the projecting end (right end) of the head 112 of the articulator 11.
Furthermore, a plate-like protrusion 115 that protrudes to the right at the same height as the concave groove 114 is formed inside the concave portions 113 on the front and rear sides of the occlus 11.
When the concave groove 114 and the projection 115 are connected to each other, the projections 115 on the front and back sides of the occlus 11 of each occlus connector 13 are the occitors of the other occlus connector 13. It has a structure fitted in the concave groove 114 of 11.
As a result, the head 112 of each occlus 11 of one occlus connector 13 and the head 112 of each occlus 11 of the other occlus connector 13 are mutually restrained in the Z-axis direction. Even when receiving an external force in the Z-axis direction, the coupled state can be effectively maintained.

[Example (1) of a suitable needle drop point in sewing of a slide fastener]
An embodiment (1) of the sewing method of the slide fastener 10 and the needle drop point of the formed seam will be described based on FIGS. 2 and 5. FIG. 5 is a rear view of the needle drop point of the stitch in the occlus connector 13 on the left side.
The occlusal connector 13 of the slide fastener 10 is sewn onto the end edge portion 2a of the workpiece 2 by a stitch of lock stitch formed by a zigzag sewing machine 100 described later. Therefore, a seam is formed by the upper thread U on the front side of the workpiece 2 and a seam is formed by the lower thread D on the back side.

At the time of sewing of the occlus connector 13, as shown in FIG. 2, one occlus 11 is sewn by a zigzag sewing machine 100, and one occlus 11 is sewn with respect to the string-like body 12. A head needle drop point a1 on the head 112 side and end edge needle drop points a2 to a6 on the end edge 2a side of the workpiece 2 with respect to the string-like body 12 are formed. These needle drop points are formed in order from a1 to a6.
Then, the above-mentioned occlus 11 is fixed to the workpiece 2 by the stitches t1 to t6 formed by the upper thread U and the lower thread D described below.
t1: stitch formed between needle drop points a1 and a2 t2: stitch formed between needle drop points a2 and a3 t3: seam formed between needle drop points a3 and a4 t4: needle drop points a4 and a4 A stitch formed between t5: a stitch formed between needle drop points a5 and a6 t6: needle drop points a6 to a11 (head needle drop point a1 of occlus 11 on the rear side, but for convenience, to distinguish The description here and in Fig. 2 will be described as "a11" The seams formed between Fig. 6 and Fig. 10 which will be described later are similar. Stitching may be used.

The head needle drop point a1 is close to the side surface 116 on the front side of the leg 111 of the occlus 11 to be fixed in the Y-axis direction, and is the right side with respect to the string 12 in the X-axis direction It is a position close to the body 12.
At this head needle drop point a1, the zigzag sewing machine 100 drops the needle to a place where there is nothing, but when the sewing needle of the sewing machine 100 ascends, it makes sliding contact with the string 12 and the occlus 11 Since a loop of the upper thread U is formed and can be captured by the hook and entwined on the lower thread D, it is possible to form a knot consisting of the upper thread U and the lower thread D at the head needle drop point a1.

The end edge needle drop points a2 to a6 are all overlapping portions 2b of the sewn item 2, and the range of the width in the Y axis direction of the leg portion 111 of the occlus 11 to be fixed in the Y axis direction. It is located in the inside area R1.
Furthermore, only two of the end edge needle drop points a2 and a6 among the end edge needle drop points a2 to a6 are half the overlapping width w of the overlapping portion 2b of the workpiece 2 in the region R1. It is desirable to be located within the region R2 on the tip 2aa side of the end edge portion 2a with the width w / 2 as the center. In FIG. 2, the hatching display is performed for the regions R1 and R2 in order to clearly show the range of each region.
Further, the two end point needle drop points a2 and a6 are separately disposed at one end (front end) and the other end (rear end) in the Y-axis direction in the region R2. .

The end edge needle drop points a2 and a6 are preferably disposed closer to the front side and the rear side in the region R2 as much as possible.
Further, it is preferable that the end edge needle drop points a2 and a6 be as close as possible to the tip 2aa of the end edge portion 2a in the region R2 in the X-axis direction.
For example, as shown in FIG. 5, when the sewn article 2 is folded back to form the overlapping part 2b, the end edge 2a of the sewn article 2 is curved by a flat part along the XY plane and folding back And formed portions.
It is more desirable to arrange the above-mentioned end point needle drop points a2 and a6 within the range of the width v of the part curved by folding in the X-axis direction.

Three points of end edge needle drop points a3 to a5 are in the above-mentioned area R1 and in an area separated from tip 2aa of end edge 2a than area R2, and the end edge needle fall in the Y-axis direction Within the range between the point a2 and the end edge needle drop point a6, they are arranged in a line along the Y-axis direction.

At the time of sewing, the zigzag sewing machine 100 has the end edge 2a of the workpiece 2 and the string-like members 12 of one of the occlus connector 13 arranged along the Y-axis direction, and these are brought close to each other. While feeding forward in the state, make the sewing needle swing along the X-axis direction, perform needle drop sequentially to each needle drop point a1 to a6 for each occlus 11 in order from the occlus 11 on the front side, Stitching is performed by forming stitches t1 to t6 of a lock stitch.

A stitch t1 consisting of an upper thread U and a lower thread D between needle drop points a1 and a2 formed by sewing and a stitch t6 consisting of an upper thread U and lower thread D and a needle drop point a6-a11 are respectively fixed It is formed so as to cross the side surfaces 116 and 117 on both sides in the Y-axis direction of the leg portion 111 of the occlus 11.
This is because the two end point needle drop points a2 and a6 are disposed at the front end and the rear end in the region R2.
For example, as shown in the comparative example (1) of FIG. 6, when the two end point needle drop points a2 and a6 are away from the front end and the rear end in the region R2 and close to the central portion, The seam t1 and the seam t6 cross the upper surface of the leg portion 111 (the lower thread D crosses the lower surface) without crossing the side surfaces 116 and 117, respectively. In FIG. 6, the illustration of the end edge needle drop points a3 and a5 is omitted.
However, as shown in FIG. 2, when the end edge needle drop points a2 and a6 are positioned at the front end and the rear end in the region R2, the stitch t1 and the stitch t6 of the upper thread U and lower thread D are respectively The sides 116, 117 can be crossed.

The upper thread U and the lower thread D forming the seams t1 and t6 are sewn items in the leg portion 111 of the occlus 11 when the seams t1 and t6 cross the side surfaces 116 and 117, respectively. It will be in the state where it abuts on the 2nd corner.
As a result, the upper thread U and the lower thread D hold the occlus 11 from the side surfaces 116 and 117 so as to wrap the occlus 11. Therefore, movement of the occlus 11 along the Y-axis direction is suppressed. Swinging of the portion 112 along the Y-axis direction is suppressed, and swinging of the head 112 of the articulator 11 about the Y-axis is suppressed. Accordingly, in the slide fastener product 1, smooth connection or separation operation by the slider 14 is possible.
On the other hand, when the seam t1 and the seam t6 cross as shown in FIG. 6, the upper thread U and the lower thread D which form the seams t1 and t6 do not contact the corners of the leg portion 111. , It is not possible to suppress the movement or swing in each of the above directions. In addition, smooth connection or separation operation by the slider 14 becomes difficult.

Further, for comparison, a comparative example in which sewing is performed to form stitches at the needle drop points a1, a3, a4, and a5 excluding the needle drop points a2 and a6 for the occlus 11 (2 ) Is shown in FIG.
In the case of this comparative example (2), the upper thread U and the lower thread D of the stitch formed between the needle drop points a1 and a3 and the upper thread U and the lower thread of the stitch formed between the needle drop points a5 and a11 Even when D crosses the side surfaces 116 and 117 and abuts on the corner of the leg 111 on the sewn product 2 side, the same effect as the stitches t1 and t6 can not be obtained.
In this comparative example (2), there are no needle drop points a2 and a6, and the needle drop points a3 and a5 are separated from the corner of the leg 111 of the occlus 11. Therefore, the occlus 11 is restrained through the corner And the possibility of crossing the upper surface of the leg portion 111 is high, so that the movement and swing of the occlus 11 described above can not be sufficiently suppressed.

Further, in the preferred embodiment (1) of the needle drop point, the end of the overlapped portion 2b of the sewn product 2 is located at a position farther from the head needle drop point a1 than the end edge needle drop points a2 and a6. Edge needle drop points a3 to a5 are formed. Thereby, since the bending of the workpiece 2 in the overlapping portion 2b can be effectively suppressed, the movement and swinging of the occlus 11 can be suppressed more effectively.
Also, the three end point needle drop points a3 to a5 may be disposed in an area farther from the end tip 2aa than the area R1. In that case, the overlapping portion 2b is held by the upper thread U and the lower thread D of the stitch t2 formed between the needle drop points a2 and a3 and the stitch t5 formed between the needle drop points a5 and a6. Deflection of the workpiece 2 in the overlapping portion 2b can be suppressed.

Further, since each of the stitches t1 to t6 described above is a stitch of lock stitch, the restraint force of each occlus 11 can be easily increased by adjusting the thread tension, and the movement and swing of the occlus 11 are further increased. It can be effectively suppressed.

[Example (2) of preferred needle drop point in sewing of slide fastener]
An embodiment (2) of the sewing method of the slide fastener 10 and the needle drop point of the formed seam will be described based on FIG. FIG. 8 is a plan view of a slide fastener product 1A in which the slide fastener 10 is sewn onto the workpiece 2 at a suitable needle drop point.
The slide fastener product 1A includes the head needle drop point a1 described above and the end edge needle drop points a2 and a6 described above in order to sew each occlus 11 of each occlus connector 13 of the slide fastener 10. Form and sew. Further, the above-described end edge needle drop points a3 to a5 are not formed.
The formation positions of the head needle drop point a1 and the end edge needle drop points a2 and a6 are the same as in the slide fastener product 1 described above. Accordingly, the end edge needle drop points a2 and a6 are provided at the front end and the rear end of the region R2 of the overlapping portion 2b of the sewn product 2, and more preferably, the range of the width v of the curved portion by folding back Inside (see Fig. 2 and Fig. 5).

The stitch t1 is formed between the needle drop points a1 and a2 by the needle drop points a1, a2 and a6, and a seam t7 is formed between the needle drop points a2 and a6, and the needle t1 is formed between the needle drop points a6 and a11 A seam t6 is formed.

At the time of sewing, the zigzag sewing machine 100 has the end edge 2a of the workpiece 2 and the string-like members 12 of one of the occlus connector 13 arranged along the Y-axis direction, and these are brought close to each other. While feeding forward in the state, make the sewing needle swing along the X-axis direction, and drop the needle sequentially to each needle drop point a1, a2, a6 for each occlus 11 in order from the occlus 11 on the front side Then, stitch stitches are performed by sequentially forming stitches t1, t7 and t6 of the lock stitch.

Also in this case, the seam t1 and the seam t6 are formed so as to cross the side surfaces 116 and 117 on both sides in the Y-axis direction of the leg portion 111 of the occlus 11 to be fixed.
As a result, the upper thread U and the lower thread D hold the occlus 11 from the side surfaces 116 and 117 so that the occlus 11 moves along the Y axis, the head 112 along the Y axis Swinging and swinging of the head 112 about the Y axis are suppressed. Accordingly, in the slide fastener product 1A, smooth connection or separation operation by the slider 14 is possible.

[Example (3) of preferred needle drop point in sewing of slide fasteners]
An embodiment (3) of the sewing method of the slide fastener 10 and the needle drop point of the formed seam will be described based on FIG. FIG. 9 is a plan view of a slide fastener product 1C in which the slide fastener 10 is sewn onto the workpiece 2 at a suitable needle drop point.
The slide fastener product 1C includes the head needle drop point a1 described above and the end edge needle drop points a2 to a6 described above in order to sew each occlus 11 of each occlus connector 13 of the slide fastener 10. Form and sew. Although it is desirable to form the end edge needle drop points a3 to a5, this is not essential.
The formation position of the head needle drop point a1 is the same as that of the slide fastener product 1 described above.
The formation positions of the end edge needle drop points a2 and a6 are related to the range in which the slider 14 passes above the workpiece 2. A straight line S in FIG. 9 indicates a trajectory that the outermost end of the slider 14 in the X-axis direction moves to move for the connection or separation operation of the pair of couplers 13. That is, the occlus connector 13 side of the straight line S is a range where the slider 14 passes above the workpiece 2. The end edge needle drop points a2 and a6 are within a range where the slider 14 passes above the workpiece 2 and in an area R3 inside the width of the leg portion 111 of the articulator 11 in the Y-axis direction. It is provided at the front end and the rear end.
On the other hand, although it is desirable to set the end edge needle drop points a3 to a5 in the region R1 as described above, the end drop needle points a3 to a5 are provided farther from the occlusal joint 13 than the overlapping portion 2b of the sewing object 2 May be

[Another example of needle drop point in sewing of slide fastener]
Another example of the sewing method of the slide fastener 10 and the needle drop point of the formed seam will be described based on FIG. FIG. 10 is a plan view of a slide fastener product 1B in which the slide fastener 10 is sewn to the workpiece 2 based on another example of needle drop points.
The slide fastener product 1B includes the head needle drop point a1 described above and the end edge needle drop points a3 to a5 described above in order to sew each occlus 11 of each occlus connector 13 of the slide fastener 10. Doubling and sewing. Further, the above-described end edge needle drop points a2 and a6 are not formed.
The positions where the head needle drop point a1 and the end edge needle drop points a3 to a5 are formed are the same as in the slide fastener product 1 described above.

The same stitches as in the comparative example (2) of FIG. 7 described above are formed in duplicate by the needle drop points a1 and a3 to a5.
At the time of sewing, the zigzag sewing machine 100 has the end edge 2a of the workpiece 2 and the string-like members 12 of one of the occlus connector 13 arranged along the Y-axis direction, and these are brought close to each other. While feeding forward in the state, make the sewing needle swing along the X-axis direction, and sequentially drop needle to each needle drop point a1, a3 to a5 for each occlusion 11 sequentially from the occlusion 11 on the front side Perform and form the lock stitches in order.
Then, when the formation of the seam is completed over the entire length of the occlus connector 13, the formation of the seam is repeated over the entire length of the connector 13, thereby forming a double stitch.

Since no stitches are formed at the end edge needle drop points a2 and a6, when sewn in a single layer, as in the comparative example (2) in FIG. In the example shown in FIG. 10, since sewing is performed in a double manner, the restraint force of the occlus 11 can be compensated, and the movement and swing of the occlus 11 can be sufficiently suppressed. It becomes possible.
The occlus 11 may be more strongly restrained by sewing in duplicate while forming the stitches by the end edge needle drop points a2 and a6.
Further, triple or more stitches may be formed by further repeating formation of the stitches.

[Sided sewing machine]
A zigzag sewing machine 100 as a sewing machine suitable for sewing the sewn article 2 of the pair of occlus connector 13 in the slide fastener product 1 will be described based on the drawings.
FIG. 11 is a perspective view of the zigzag sewing machine 100. FIG.

The zigzag sewing machine 100 comprises: a sewing machine frame 20 having a sewing machine bed portion 21; a cloth presser 25 for pressing the workpiece 2 on the upper surface of a needle plate 24 provided on the sewing machine bed portion 21; Needle feed mechanism that performs needle drop while moving the sewing needle 26 up and down with respect to the workpiece 2 and swinging it left and right, and a predetermined cloth feed direction by the feed tooth with the workpiece 2 from the lower side of the needle plate 24 The hook feeding mechanism for winding the lower thread D on the upper thread U of the sewing needle 26, and the fastener conveying mechanism 40 for conveying the occlusal connector 13 of the slide fastener 10.
In addition, about the structure other than the fastener conveyance mechanism 40, since it is the same as the well-known structure with which a general zigzag sewing machine is equipped, illustration is abbreviate | omitted and it demonstrates simply.

Sewing machine frame
The sewing machine frame 20 includes a sewing machine bed 21 located at the lower part of the entire zigzag sewing machine 100, a standing barrel 22 standing upward at one end of the sewing machine bed 21, and an upper end of the standing barrel 22. And a sewing machine arm 23 extending in a predetermined direction from the above.
In the following description, the longitudinal direction of the sewing machine bed 21 and the sewing machine arm 23 of the zigzag sewing machine 100 is taken as the X-axis direction, and the needle plate 24 side of the sewing machine bed 21 is "left" and the standing barrel 22 side "Right".
Further, the zigzag sewing machine 100 conveys the sewn object 2 and the interlocking connector 13 in a direction orthogonal to the X-axis direction on the needle plate 24, and this conveyance direction is taken as the Y-axis direction. The "front" and the upstream side in the transport direction are "rear".
Further, a direction orthogonal to the X-axis direction and the Y-axis direction is taken as a Z-axis direction, one of which is "upper" and the other one "lower".
In the X-Z axis direction defined for the slide fastener product 1 described above, the sewn object 2 and the interlock connector 13 of the slide fastener product 1 are set on the above-mentioned zigzag sewing machine 100 in sewing operation. Match in

Needle up and down movement mechanism
The needle up-and-down movement mechanism makes the rotational movement of the upper shaft and the upper shaft that are rotationally driven by the needle bar 27 holding the sewing needle 26, the sewing machine motor as a driving source of sewing, the sewing machine motor A crank mechanism that converts and applies to the needle bar 27, a needle bar support that supports the needle bar so as to move vertically, and a needle swing motor that arbitrarily moves the needle bar support along the X-axis direction There is.
The needle vertical movement mechanism vertically moves the sewing needle 26 at a sewing speed corresponding to the number of rotations of the sewing machine motor, and moves the needle falling position of the sewing needle 26 in the X axis direction orthogonal to the conveying direction of the articulated member 13 Movement can be adjusted arbitrarily along the way.

[Kam mechanism]
The hook mechanism includes a hook provided below the needle plate 24 and a transmission mechanism that applies a rotational force from the sewing machine motor to the hook.
The kettle stores the bobbin wound with the lower thread D and has a sword tip on the outer periphery. Then, the loop of the upper thread passed through the sewing needle 26 is captured by the point of the sword and the lower thread D is entangled on the upper thread U by winding the bobbin over the loop of the upper thread to form a knot.
In addition, a vertical pot, a horizontal pot, etc. can be used for a pot, and it is also possible to use any half-turn and full-turn pots.

Cloth feed mechanism
The cloth feed mechanism is a feed that combines and transmits the feed teeth emerging from the opening 241 (see FIG. 12) of the needle plate 24 and the reciprocating motion in the Z-axis direction and the reciprocating motion in the Y-axis direction with respect to the feed teeth. And a transmission mechanism.
The feed teeth are provided with serrated teeth that protrude and retract from an opening 241 formed in the needle plate 24, and the feed transmission mechanism obtains power from the sewing machine motor to reciprocate along the Z axis direction and the Y axis. By converting it into reciprocating motion along the direction and transmitting it to the feed tooth, the feed tooth moves in the YZ plane by combining the reciprocating motion in the back and forth and up and down directions in the YZ plane, and moves the upper part in the oval At this time, the tip of the tooth is moved forward while projecting upward from the opening 241, so that the workpiece 2 can be sent forward.
Further, this cloth feeding mechanism can arbitrarily adjust the feed amount of the workpiece 2 in the Y-axis direction for each needle.
Further, the cloth feeding mechanism may be provided with a feed adjustment motor for arbitrarily adjusting the cloth feed amount, and the feed adjustment motor may be configured to adjust the feed amount.

[Needle plate]
FIG. 12 is a perspective view of the needle plate 24. As shown in FIG. The needle plate 24 is provided at the needle drop position of the sewing needle 26 on the upper surface of the sewing machine bed 21, and the upper surface of the needle plate 24 is flat and flush with the upper surface of the sewing machine bed 21 There is.
The needle plate 24 is a rectangular flat plate, and the workpiece 2 is conveyed along the Y-axis direction along the upper surface on the left half of the upper surface.

A slit-like needle hole 242 extending in the X-axis direction is formed through the center of the needle plate 24. The three openings 241 through which the feed teeth are inserted and retracted are formed on the front and back and to the left of the needle hole 242. It is formed through. The needle hole 242 can correspond to a needle drop due to needle swinging along the X-axis direction by forming a slit along the X-axis direction.

Further, at the center of the upper surface of the needle plate 24 in the X-axis direction, a feed groove 243 of the coupler 13 is formed along the Y-axis direction. The feed groove 243 has a width in the X-axis direction substantially equal to or slightly larger than the length in the X-axis direction of the articulator 11, and the articulator coupling body 13 is received in the feed groove 243 The body 13 can be guided along the same Y-axis direction as the transport direction of the workpiece 2.
The feed groove 243 has a depth shallower than half the width of the articulator 11 in the Z-axis direction, and the sewing material 2 on the needle plate 24 is in the Z-axis direction of the articulator 11 with respect to the articulator 11. It is placed in the center. Further, the inner bottom surface of the groove at the front end portion and the rear end portion of the feed groove 243 is formed in a slope shape.
Further, the above-described needle hole 242 is formed to cross the central portion of the feed groove 243 in the Y-axis direction.
The needle plate 24 functions as a fastener guide for guiding the occian joint 13 in the same Y-axis direction as the feed direction of the workpiece 2 by the feed groove 243.

[Folder]
FIG. 13 is a perspective view around the needle drop position. The cloth presser 25 is pressed downward on the needle plate 24 by a support bracket 251 provided on the sewing machine bed 21.
The cloth presser 25 is in the form of a rectangular plate along the Y-axis direction, and a semi-elliptical notch 252 which avoids the needle 26 which descends is formed at the right edge thereof. The notch 252 overlaps with the left half of the needle hole 242 of the needle plate 24 as viewed from above.
The cloth presser 25 applies a pressing pressure to the workpiece 2 conveyed on the needle plate 24 by the pressing force from the support bracket 251.
Further, the height or the pressing force of the cloth presser 25 can be adjusted by a cloth presser elevating motor 253 (refer to FIG. 31) which moves up and down. Thus, the pressing pressure can be changed according to the thickness of the material to be sewn and the like.

[Fastener transport mechanism]
FIG. 14 is a plan view of the fastener transport mechanism 40, and FIG. 15 is a rear view.
As shown, the fastener conveyance mechanism 40 includes a conveyance gear 41 having teeth engaging with the occlus 11 of the occlus connector 13, a conveyance motor 42 for imparting a rotation operation to the conveyance gear 41, and a conveyance gear 41. A support mechanism 43 for supporting, a transmission mechanism 48 for transmitting a rotational force from the transport motor 42 to the transport gear 41, and a fastener presser 49 for suppressing the upward detachment of the articulated object 13 transported by the transport gear 41 Have.

FIG. 16 is a rear view around the needle drop position.
As shown in FIGS. 13 and 16, the transport gear 41 has teeth on its outer periphery that can engage with the heads 112 of one or more of the occlus 11 of the occlus connector 13 along the Y-axis direction. It is a spur gear, and is supported rotatably around the Z axis by a support mechanism 43.
The conveyance gear 41 has a pitch width that matches the pitch of each occlus 11 of the occlus connector 13, and the tooth width is the feed groove 243 on the needle plate 24 from the width in the Z-axis direction of the occlus 11. It is almost equal to the reduced width of Therefore, the upper surface of the occlus 11 of the occlus connector 13 conveyed in the feed groove 243 of the needle plate 24 and the upper surface of the conveying gear 41 have the same height.
Further, the transport gear 41 is disposed on the right side of the needle drop position, and is disposed so as to engage with the occlus connector 13 in which the head 112 of each occlus 11 is directed rightward from the right.
Therefore, when rotation is imparted to the transport gear 41, the articulated connector 13 can be transported along the Y-axis direction.

The fastener retainer 49 is supported by the base plate 45 of the support mechanism 43 in front of the needle drop position, as shown in FIGS. 13 and 16, and extends rearward to the needle drop position.
The lower surface of the extension end of the fastener holder 49 has a height such that it abuts on or approaches the upper surface of the occlus 11 of the occlus connector 13 in the feed groove 243 of the needle plate 24 at the needle drop position. .
As a result, in the feed groove 243, the occlus connector 13 engaged with the conveyance gear 41 is prevented from being separated upward from the conveyance gear 41.

Further, the fastener holder 49 is formed with a semi-elliptical notch 491 at the left end edge of the extension end portion for avoiding the descending sewing needle 26. The notch 491 overlaps with the right half of the needle hole 242 of the needle plate 24 as viewed from above.

FIG. 17 is a plan view of the state in which the upper cover 451 of the base plate 45 of the support mechanism 43 and the upper cover 441 of the support arm 44 are removed.
As shown in FIGS. 14 and 17, the support mechanism 43 can slide the support arm 44 supporting the transport gear 41, the base plate 45 supporting the support arm 44, and the base plate 45 along the X-axis direction. And a slide guide 46 for supporting.

The base plate 45 is a flat plate along the XY plane, and is disposed between the needle drop position and the upright barrel 22 via the slide guide 46 on the sewing machine bed 21.
The base plate 45 supports the transport gear 41 via the support arm 44 and also supports the transport motor 42 and the transmission mechanism 48.
An upper cover 451 is provided on the upper portion of the base plate 45, and a part of the transmission mechanism 48 supported by the base plate 45 is covered.

The slide guide 46 includes a movable block 461 fixedly connected to the base plate 45 and a slide rail 462 mounted on the sewing machine bed portion 21 along the X-axis direction. It can be slid along the direction.

On the other hand, at the right end portion of the base plate 45, a restriction bracket 452 is provided which restricts the sliding movement of the base plate 45 along the X-axis direction.
The restriction bracket 452 is extended rightward and rotatably supports the connection screw 454 at its extended end, and the sewing machine bed 21 has a screw hole in which the connection screw 454 can be screwed. A fixed plate 453 is provided.
Then, the base plate 45 is fixed at a prescribed position at the time of sewing by connecting the left side of the extension end portion of the restriction bracket 452 to each other by the connecting screw 454 in a state where the left surface is in contact with the right side of the fixing plate 453. Can. Further, the base plate 45 can be moved from the specified position to the right by loosening the connecting screw 454 and separating the restriction bracket 452 from the fixing plate 453 to the right. When the base plate 45 is moved to the right, the right end of the base plate 45 abuts on the left surface of the fixing plate 453. This contact position is the movable limit on the right side of the base plate 45.

As described above, the base plate 45 supports the transport gear 41 via the support arm 44, and the transport gear 41 is in contact with the occlus 11 of the occlus connector 13 to be transported from the right side. Transport.
When the base plate 45 is sewn, the tooth tip of the transfer gear 41 is properly engaged with the head portion 112 of the articulator 11 when the articulator joint 13 is conveyed, and the base plate 45 is conveyed by rotation. It is a suitable position.
Then, when the connecting bracket 454 is separated from the fixing plate 453 by loosening the connecting screw 454, the engagement of the connector 11 with the head 112 of the connector 11 is released by the movement of the base plate 45 to the right. Thus, the tip of the conveying gear 41 can be separated to the right.
Thereby, for example, the maintenance of the fastener conveyance mechanism 40 and the operation of removing the connector 13 from the needle plate 24 can be easily performed.

As shown in FIGS. 14 and 17, the support arm 44 is rotatably supported about a support shaft 442 along the Z-axis direction at the left end of the base plate 45, and the rotational end thereof is It is turned to the right backwards.
The support arm 44 rotatably supports the transport gear 41 via the support shaft 411 at its pivoting end.
In addition, a plate spring-like latch plate 412 fitted in the tooth groove on the outer periphery of the conveyance gear 41 is equipped at the rotational end of the support arm 44. The latch plate 412 has a protrusion that comes in contact with the transport gear 41 with a constant spring pressure to prevent backlash of the transport gear 41.

An upper cover 441 is fixedly mounted on the upper portion of the support arm 44, and one end of a tension spring 443 is connected to a front end of the upper cover 441. The other end of the tension spring 443 is connected to the base plate 45, and applies a tension in a direction in which the transport gear 41 supported by the support arm 44 approaches the side of the coupler joint 13.

Further, at the rotation end of the upper cover 441, a restriction opening 445 is formed in which the extension end of the rotation angle restriction plate 444 fixedly supported on the base plate 45 is loosely inserted.
Thus, the pivotable angular range of the support arm 44 on the base plate 45 is limited such that the transport gear 41 moves only between the left limit position and the right limit position.
The rotatable angle range is a position where the teeth of the transport gear 41 properly engage with a constant pressing force of the transport gear 41 against the head 112 of the occlus 11 of the occlus connector 13 located in the feed groove 243 Then, the transport gear 41 is movable relative to the head 112 of the articulator 11 from the meshed state to the completely separated position.
As described above, since the support arm 44 is rotatable within a predetermined angle range, the support arm 44 is manually moved to the right, for example, while the base plate 45 is held at the specified position at the time of sewing. The meshing connector 13 can be removed from the needle plate 24 by releasing the meshing state between the conveying gear 41 and the occlus 11 of the occlus connector 13 at the end of sewing. .

Further, on the upper surface of the upper cover 441 of the support arm 44, an origin sensor 413 of the transport gear 41 and its detection plate 414 are mounted.
The detection plate 414 is fixed at the upper end portion of the support shaft 411 of the transport gear 41 and extends in the radial direction centering on the support shaft 411.
The origin sensor 413 is a magnetic proximity sensor. The origin sensor 413 is provided on the upper surface of the upper cover 441 within a range in which the detection plate 414 pivots around the support shaft 411, and the detection plate 414 approaches the origin sensor 413. To detect.

The transport motor 42 is a stepping motor, and can arbitrarily control the feed amount of the articulated object 13 by the transport gear 41 via the transmission mechanism 48.
As shown in FIGS. 14 and 15, the transport motor 42 is mounted on the base plate 45 with the output shaft directed downward.

The transmission mechanism 48 includes, as shown in FIGS. 14-17, a main moving pulley 481 fixedly mounted on the output shaft of the transfer motor 42 and an intermediate pulley 482 rotatably supported with respect to a support shaft 442 of the support arm 44. , A driven pulley 483 fixedly mounted on the support shaft 411 of the transport gear 41, a timing belt 484 stretched around the driven pulley 483 from the main driving pulley 481 through the intermediate pulley 482, and a tension for applying a tension to the timing belt 484. And a roller 485.

The intermediate pulley 482 is rotatable relative to the support shaft 442 of the support arm 44, and the intermediate pulley 482 can rotate independently of the pivotal movement of the support arm 44.
On the other hand, the driven pulley 483 is fixed to the support shaft 411 of the transfer gear 41, and the transfer gear 41 is also fixed to the support shaft 411. Accordingly, the driven pulley 483 and the transport gear 41 simultaneously rotate in conjunction with each other.

The tension roller 485 is supported by a bell crank 486 provided on the upper cover 451 of the base plate 45. The bell crank 486 is tensioned in a direction in which the tension roller 485 is in pressure contact from the outside to the inside of the timing belt 484. Is coupled to a tension spring 487 which provides

Further, as shown in FIG. 17, the tension roller 485 has a substantially L-shaped shape in which the timing belt 484 connects the positions of the driving pulley 481-intermediate pulley 482-driven pulley 483 in order. It is in pressure contact with the timing belt 484.
By maintaining the timing belt 484 in such a shape, the occurrence of the slack of the timing belt 484 is reduced even when the pivoting operation of the support arm 44 is performed, and the output shaft angle of the transport motor 42 and the transport gear 41 It is possible to reduce the occurrence of angular deviation from the rotation angle of

As shown in FIG. 18, the main driving pulley 481, the intermediate pulley 482, and the driven pulley 483 of the transmission mechanism 48 may be all toothed pulleys, and the timing belt 484 may be a toothed belt.

[Sewing operation of slide fastener product by zigzag sewing machine]
The sewing operation of the zigzag sewing machine 100 will be described by taking as an example a case where the occlusal connector 13 on the left side of the slide fastener 10 in the slide fastener product 1 of FIG. 2 is sewed on the end edge 2a of the workpiece 2 .

First, the origin search of the transport gear 41 of the fastener transport mechanism 40 is executed. That is, the control device included in the zigzag sewing machine 100 drives the transport motor 42 to rotate the transport gear 41, and detects the detection plate 414 by the origin sensor 413. Then, when the detection plate 414 is detected, the conveyance motor 42 is stopped at the origin position of the conveyance gear 41.
Then, the user of the sewing machine turns the connection screw 454 to release the connection between the regulation bracket 452 and the fixing plate 453, moves the base plate 45 to the right, and moves the transport gear 41 to the right of the needle drop position. Evacuate to

Next, the user of the sewing machine sets the articulated member 13 to the feed groove 243 of the needle plate 24 so that the leading articulator 11 is at the needle dropping position, and on the left side of the articulated member 13 The workpiece 2 is set under the cloth presser 25 so that the end edge 2a is along.
Then, the base plate 45 is moved to a prescribed position at the time of sewing on the left side, the connection screw 454 is turned, and the regulation bracket 452 and the fixing plate 453 are connected again.

Thereafter, drive of the sewing machine motor is started. During sewing, the needle swing motor and transport motor 42 are controlled for each needle drop so that the needle drops to the needle drop points a1 to a6 in FIG. 2 are repeated. An encoder is juxtaposed to the sewing machine motor, and the control timing of the needle swing motor of each needle and the transport motor 42 is detected.

Specifically, when sewing is started by the needle drop at the needle drop point a1, to the left to the needle drop point a2 until the next needle drop at an appropriate timing detected by the encoder of the sewing machine motor The needle swing motor executes the needle swing, and the transport motor 42 executes the forward feed of the articulated object 13 so as to have the amount of forward movement to the needle drop point a2.
Positioning from needle drop point a2 to needle drop point a3, positioning from needle drop point a3 to needle drop point a4, positioning from needle drop point a4 to needle drop point a5, from needle drop point a5 to needle drop point a6 Positioning and positioning from the needle drop point a6 to the needle drop point a1 of the next articulator 11 are all performed in the same manner as described above.
In addition, specific numerical data of the needle swing amount of the needle swing motor for performing the needle drop to the drop points a1 to a6, and the specific numerical data of the forward movement amount by the transport motor 42 are data memories provided in the control device of the zigzag sewing machine 100. Since it is stored in advance, reading of numerical data is executed for each needle drop.

The sewing machine motor, the needle swing motor, and the transport motor 42 are operated when sewing sewing of all the occlus 11 of the articulated object 13 to the sewn material 2 is completed by repeating the needle drop to the fall points a1 to a6. Stop.
Then, the user of the sewing machine turns the connection screw 454 to release the connection between the regulation bracket 452 and the fixing plate 453, moves the base plate 45 to the right, and moves the transport gear 41 to the right of the needle drop position. Evacuate to As a result, the sewing material 2 and the articulated member 13 can be removed from the needle plate 24.
In addition, when only sewing of one occlus connector 13 of the slide fastener 10 of the slide fastener product 1 is performed, sewing of the other occlus connector 13 is also performed. In that case, the other occlus connector 13 is set in the feed groove 243 of the needle plate 24, and the sewing material 2 is switched in the front-rear direction with respect to the case where one occlus connector 13 is sewn. Then, the sewing operation of the articulated member 13 is performed in the same manner as described above.

As described above, specific numerical data of the needle swing amount of the needle swing motor for performing needle drop to each needle drop point a1 to a6 and the forward movement amount by the transport motor 42 are stored in advance in the data memory It is done.
And also, in sewing sewing in which the needle is dropped to each needle drop point in FIG. 6 to FIG. 10, the needle swing amount of the needle swing motor for performing needle drop to each needle drop point and the forward movement amount by the transport motor 42 The stitch sewing can be performed by the zigzag sewing machine 100 by preparing specific numerical data of the above in advance in the data memory.

Further, as shown in FIG. 19, an air cylinder as an actuator for performing a moving operation along a direction away from the needle drop position of the transport gear 41 by moving the base plate 45 along the X-axis direction. 47 may be provided on the sewing machine bed 21. The air cylinder 47 is provided on the sewing machine bed 21 so that the movement direction of the piston rod is parallel to the X axis direction, and the piston rod is connected to the base plate 45.
As a result, the base plate 45 can be moved between the specified position at the time of sewing and the retracted position where the transport gear 41 is sufficiently separated from the connector 13.
The air cylinder 47 is controlled by the control device of the zigzag sewing machine 100 as a solenoid valve for executing the advancing and retracting operation of the piston rod. Specifically, the workpiece 2 and the articulated member 13 are set, and the base plate 45 is moved to a specified position at the time of sewing start or before sewing is started, after the origin search of the transport motor 42 is completed. After completion, control is performed to move the base plate 45 to the retracted position.

[Technical effect of the first embodiment]
In the slide fastener product 1 described above, in the example of FIG. 2, the head needle drop point a1 to the head 112 side of the occlus 11 with respect to the string-like body 12 and the sewn item 2 with respect to the string-like body 12 by sewing. An end edge needle drop point a2 to a6 toward the end edge portion 2a is formed.
Furthermore, the end edge needle drop points a2 and a6 are within the overlapping portion 2b of the sewn product 2 and w / 2 which is a half of the overlapping width w of the overlapping portion 2b in the X-axis direction. Provided at one end and the other end of a region R2 which is within the range closer to the end edge portion tip 2aa and which is the inner range of the width of the leg 111 of the occlus 11 in the Y axis direction ing.
Then, the upper thread U and the lower thread D of the seam t1 extending from the head needle drop point a1 to the end edge needle drop point a2, and the head needle drop point a1 of the adjacent articulator 11 from the end edge needle drop point a6 The upper thread U and the lower thread D of the seam t6 crossing the head needle drop point a11 in FIG. 2 are sewn so as to cross the side faces 116 and 117 on both sides in the Y axis direction of the leg 111 of the occlus 11 Has been done.

The upper thread U and the lower thread D of the stitches t1 and t6 abut the corner of the sewn product 2 side of the leg portion 111 of the occlus 11 by these, and firmly hold the occlus 11 so as to wrap it. The movement of the child 11 along the Y-axis direction, the swinging of the head 112 of the articulator 11 along the Y-axis direction, the swinging around the Y-axis, and the like are reduced and suppressed. Accordingly, good sewing of the slide fastener 10 is realized, and the slide fastener product 1 can be smoothly connected or separated by the slider 14.

Also in the case of the slide fastener products 1A and 1C shown in the examples of FIGS. 8 and 9, the occlus connector 13 is sewn by the end edge needle drop points including the end edge needle drop points a2 and a6 described above. Since it is sewn to 2, as in the example of FIG. 2, the movement of the articulator 11 along the Y-axis direction, the swinging of the head 112 of the articulator 11 along the Y-axis direction, and the rotation around the Y axis. The swing and the like are reduced and suppressed, and good sewing of the slide fastener 10 is realized, and the slide fastener product 1 can be smoothly connected or separated by the slider 14.

Further, the end edge needle drop points a3 to a5 are within the region R1 of the overlapping portion 2b of the sewn product 2 and are farther from the occlus 11 than the end edge needle drop points a2 and a6. Provided in
The upper yarn U and the lower yarn D, which are stitches of the stitches t2 to t5 formed by the end edge needle drop points a3 to a5, maintain close contact between the fabrics of the sewn products 2 overlapping in the overlapping portion 2b. Therefore, the occurrence of bending and deformation in the overlapping portion 2b is suppressed.
As a result, the movement of the articulator 11 along the Y-axis direction, the rocking of the head 112 of the articulator 11 along the Y-axis direction, the rocking around the Y-axis, and the like can be reduced and suppressed. Also, along with this, the slide fastener product 1 can be further smoothly connected or separated by the slider 14.
In addition, the end edge needle drop points a3 to a5 can be provided at positions farther from the occlus 11 than the region R1 of the overlapping portion 2b of the workpiece 2. In that case, although it is impossible to maintain the fabrics of the sewn product 2 in which the knots of the upper yarn U and the lower yarn D directly overlap in the overlapping portion 2b, the seams t2 and t5 are in the overlapping portion 2b. Since the cloths of the sewing material 2 to be overlapped are pressed, generation of bending and deformation in the overlapping portion 2b can be suppressed.

In particular, since each seam t1 to t7 is formed by a stitch of lock stitch, a firm knot can be easily formed by adjusting the thread tension, and movement of the articulator 11 along the Y-axis direction, It is possible to reduce and suppress swinging of the head 112 of the occlus 11 in the Y-axis direction and swinging around the Y-axis. Furthermore, the slide fastener product 1 enables a further smooth connection or separation operation by the slider 14.

Further, in the zigzag sewing machine 100 described above, the conveyance mechanism 41 includes a conveyance gear 41 having teeth meshing with the occlus 11 of the occlus connector 13 and a conveyance motor 42 that imparts a rotational motion to the conveyance gear 41. And a needle plate 24 for guiding the occlusal connector 13 in the same direction as the feed direction of the workpiece 2.
As a result, it is possible to suitably execute the swinging of the sewing needle 26, the transport of the workpiece 2, and the feeding of the interlock connector 13 for positioning with respect to the respective needle drop points a1 to a6 described above.
In particular, it has been difficult for a conventional sewing machine to convey a machine in which a plurality of articulators 11 are connected along the transport direction and the concavities and convexities are continuous, as in the case of the occlus connector 13; Since the teeth of the conveyance gear 41 are engaged with the head 112 of the continuous articulator 11 of the occlusal joint 13 and conveyed, the occlusal joint 13 can be conveyed to the target position with arbitrary accuracy. is there.
Therefore, it is possible to perform the needle drop with high accuracy with respect to the needle drop points a1 to a6, and it is possible to realize good sewing of the occlusal connector 13 with respect to the workpiece 2.

In addition, since the needle plate 24 as a fastener guide has a feed groove 243 for guiding the plurality of occluss 11 of the occlus connector 13 along the same direction as the feed direction of the workpiece 2, the head of the occlus 11 is Even when the portion 112 engages with the teeth of the transport gear 41, the connector 13 can be stably maintained so as not to be deviated from the feeding direction, and the needle drop is made more accurately with respect to the needle drop points a1 to a6. It is possible to do

Further, since the zigzag sewing machine 100 is provided with the fastener presser 49 that suppresses the upward detachment of the occlus connector 13 conveyed by the conveyance gear 41, the head 112 of the occlus 11 is a tooth of the conveyance gear 41. At the time of meshing, it is possible to stably maintain the interlocking connector 13 so as not to be lifted upward, and it is possible to perform needle drop more accurately with respect to the needle drop points a1 to a6.

Further, since the transport gear 41 is supported by the support arm 44 so as to be movable along the direction away from the needle drop position, the connector 13 can be easily removed from the needle plate 24. It is possible to improve the workability.

In addition, the transport gear 41 is supported by the base plate 45 together with the transport motor 42 and the transmission mechanism 48, and is supported movably along the direction in which the transport gear 41 is separated from the needle drop position by the slide guide 46. As a result, the connector 13 can be easily removed from the needle plate 24, and the workability can be improved.
Furthermore, since the conveyance gear 41 moves together with the conveyance motor 42 and the transmission mechanism 48, generation of origin position deviation of the conveyance gear 41 can be suppressed during movement, and sewing work is performed after separation from the needle drop position. At the time of returning to, the origin search and the like can be omitted, and the next sewing can be performed quickly, and the working efficiency can be improved.

Further, in the case where the movement operation of the transport gear 41 by the base plate 45 is performed by the air cylinder 47 as an actuator, no manual work is required, which makes it possible to reduce the work load and speed up the work.

In addition, the zigzag sewing machine 100 drives the transport motor 42 at a prescribed timing based on the detection of the encoder of the sewing machine motor for every needle drop, and feeds the connector 13 to the next needle drop point. A control device is provided which performs control to move the moving amount to the moving amount. Thereby, in the conveyance direction of the occlus connector 13, the occlus connector 13 can be transported to a needle drop point which is a target in sewing sewing on the workpiece 2, and sewing sewn can be easily and properly performed. It is possible to

In addition, the zigzag sewing machine 100 drives the needle swing motor at a prescribed timing based on the detection of the encoder of the sewing machine motor for every needle drop, and the sewing needle becomes a needle swing amount up to the next needle drop point. And a control device that performs control to cause needle oscillation. As a result, the sewing needle can be moved to the target needle drop point in sewing with respect to the sewing material 2 in the direction orthogonal to the conveyance direction of the occlus connector 13 and sewing sewing can be performed more easily. It is possible to realize

[Another Example of Fastener Transfer Mechanism (1)]
In the fastener conveyance mechanism 40 mentioned above, although the case where the spindle 411 which supports the conveyance gear 41 was arrange | positioned in parallel with Z-axis direction was illustrated, direction of the spindle 411 is not limited to this.
For example, as in the fastener conveyance mechanism 40A shown in FIGS. 20 and 21, the conveyance is provided with teeth engaging the occlus 11 on the outer periphery, and the pitch width matches the pitch of each occlus 11 of the occlus connector 13. The rotation center of the gear 41A may be directed in the horizontal direction, for example, in the X-axis direction. In addition, illustration of the sewing needle 26 is abbreviate | omitted in FIG.

The fastener transfer mechanism 40A is a main drive that is rotated by a support shaft 411A parallel to the X-axis direction for supporting the transfer gear 41A, a transfer motor 42A having an output axis directed in the X-axis direction, and a transfer motor 42A. It includes a pulley 481A, a driven pulley 483A fixedly mounted on a support shaft 411A, and a timing belt 484A etc. wound around the driven pulley 481A to the driven pulley 483A.
In this case, at the lower side of the needle plate 24, the conveying gear 41A passes through the opening formed in the needle plate 24 at the upper end of the conveying gear 41A, and the occlusal member 11 of the occlusal joint 13 in the feed groove 243 Is arranged to mesh with the head 112 of the

As described above, also in the case of the fastener conveyance mechanism 40A configured to rotate the conveyance gear 41A about the horizontal axis parallel to the X-axis direction, similarly to the fastener conveyance mechanism 40, the occlusion connector 13 can be favorably conveyed. It is possible.

In the case of the fastener conveyance mechanism 40A that rotates the conveyance gear 41A about the X axis (about the horizontal axis) as described above, the conveyance gear 41A is disposed on the upper side of the needle plate 24 as shown in FIGS. Alternatively, the lower tooth tip of the transport gear 41A may be arranged to mesh with the head 112 of the occlus 11 of the occlus connector 13 in the feed groove 243 from the upper side.
In that case, it is desirable to arrange the power transmission such as the support shaft 411A, the transport motor 42A, the main drive pulley 481A, the driven pulley 483A, the timing belt 484A, etc. above the needle plate 24.

[Another Example of Fastener Transfer Mechanism (2)]
Moreover, in the fastener conveyance mechanism 40 mentioned above, although the case where the spindle 411 which supports the conveyance gear 41 was arrange | positioned in parallel with Z-axis direction was illustrated, you may make the direction of the spindle 411 incline.
For example, as in the fastener transport mechanism 40B shown in FIG. 24, the transport gear 41B is provided with teeth meshing with the occlus 11 on the outer periphery, and the pitch width matches the pitch of each occlus 11 of the articulated connector 13. The rotation center and the support shaft 411B may be inclined obliquely upward to the left with respect to the Z-axis direction. In FIG. 24 as well, illustration of the sewing needle 26 is omitted.

The fastener transfer mechanism 40B includes a support shaft 411B, a transfer motor 42B having an output shaft oriented parallel to the support shaft 411B, a main moving pulley 481B rotated by the transfer motor 42B, and a support shaft 411B. It includes the driven pulley 483B and a timing belt 484B and the like which are wound around the driven pulley 481B from the driven pulley 481B.
In this case, on the upper side of the needle plate 24, the left side of the tip of the conveyance gear 41B on the upper side of the needle plate 24 is the upper right side of the head 112 of the articulator 11 of the connector 13 in the feed groove 243 of the needle plate 24. It is arranged to mesh from.

As described above, also in the case of the fastener conveyance mechanism 40B configured to rotate the conveyance gear 41B about the axis inclined with respect to the Z-axis direction, similarly to the fastener conveyance mechanism 40, the occlusion connector 13 is favorably conveyed. Is possible.

As in the case of the fastener conveyance mechanism 40, each of the fastener conveyance mechanisms 40A and 40B is capable of moving the conveyance gears 41A and 41B in a direction (e.g., the right side) separating from the interlock connector 13 It may be movably supported between a prescribed position 41A, 41B (a position where it engages with the occlus 11) and a retracted position (a position where the transport gear 41 is sufficiently separated from the articulated object 13). In that case, it is desirable that the transport motors 42A and 42B and the components transmitting rotational motion from these to the transport gears 41A and 41B are also supported movably in the same direction with the transport gears 41A and 41B.
In the case of the fastener transport mechanisms 40A and 40B as well, as shown in the example of FIG. 19, the actuator such as the air cylinder 47 is configured to move between the defined position and the retracted position of the transport gears 41A and 41B. More desirable.

Second Embodiment
A second embodiment of the present invention will be described.
In the fastener conveyance mechanism 40 mentioned above, although the occlus connector 13 is conveyed by one conveyance gear 41, the occlus connector 13 may be conveyed by two or more conveyance gears.
Hereinafter, a zigzag sewing machine 100 provided with a fastener conveyance mechanism 40C in which conveyance gears 415C and 416C are respectively disposed on the front side and the rear side across the needle hole 242 will be described as a second embodiment of the present invention.

In addition, about the structure same as the fastener conveyance mechanism 40 mentioned above about the fastener conveyance mechanism 40C, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted. As for the sewing machine 100, only the points different from the configuration already described will be described, and the same configuration will be assigned the same reference numerals and overlapping descriptions will be omitted.
FIG. 25 is a plan view of the fastener conveyance mechanism 40C, FIG. 26 is a rear view, FIG. 27 is a perspective view of the main part thereof, and FIG. 28 is a plan view.

As illustrated, the fastener conveyance mechanism 40C includes two conveyance gears 415C and 416C having teeth engaging with the occlus 11 of the joint 13 and a conveyance motor that imparts rotational motion to each conveyance gear 415C and 416C. 42C, a support mechanism 43C for supporting the conveyance gears 415C and 416C, and a transmission mechanism 48C for transmitting a rotational force from the conveyance motor 42C to the conveyance gears 415C and 416C.
Although this fastener conveyance mechanism 40C is also provided with a fastener press having the same structure as the above-described fastener press 49, illustration is omitted.

[Supplementary Description of Slide Fastener]
Here, the slide fastener 10C will be described with reference to FIGS.
The slide fastener 10C is provided with a pair of occlus connector 131, 132 which can be connected and separated. The pair of occlus connectors 131, 132 constituting the slide fastener 10C is the same as the occlus connector 13 in that the occlus 11 is connected by the cord-like body 12, but there is a difference in the end structure thereof .
As shown in FIG. 29, one occlus connector 131 is provided with a butterfly rod 15 and an upper stopper 17 provided on one end and the other end of the string-like body 12 connecting a plurality of occluss 11 respectively. ing.
The other occlus connector 132 is, as shown in FIG. 30, a box rod 16 provided at one end of a string 12 connecting a plurality of occluss 11 and an upper stop provided at the other end. It has 17 and.
In addition, in FIG.29 and FIG.30, the number of the occlus 11 of each occlus connector connection body 131,132 is illustrated less than actual.

In the occlusal connector 131, the butterfly rod 15 and the upper stopper 17 function as a stopper so that the slider 14 does not fall off the end of the string-like body 12.
Also, by inserting the box rod 16 of the connector joint 132 into the slider 14 with the slider 14 positioned at the end on the butterfly rod 15 side of the connector joint 131, the butterfly rod 15 and the box rod can be inserted. And 16 are shapes that match each other. By moving the slider 14 toward the upper stop 17 in this matching state, it is possible to connect the respective occluss 11 of the occlus connector combination 131 and the occlus connector combination 132 to each other.

Both the butterfly rod 15 and the box rod 16 (these may be collectively referred to as “openers”) are thin-plate-like stitches for sewing on the back side of the end edge 2 a of the workpiece 2. A plurality of threading holes 152 and 162 are formed along the longitudinal direction of the cord-like body 12 in the attachment portions 151 and 161, respectively.
Then, when the occlusal connection body 131 is sewn onto the workpiece 2, the needles are dropped in the plurality of threading holes 152 of the butterfly rod 15. Further, when the occlusal joint 132 is sewn onto the workpiece 2, the plurality of threading holes 162 of the box bar 16 are needle-dropped.

Further, the upper stopper 17 has almost the same size as the occlus 11 in the front-rear and left-right directions, but does not have the head 112 which is curved like the occlus 11. The upper stopper 17 is thicker than the articulator 11 as a whole, so that the slider 14 is held so as not to come off.

[Arrangement of transfer gear]
In the above-mentioned occlus connector 131, 132, when the pair of the occlus connector 131, 132 is connected, the butterfly rod 15 and the box rod 16 are more left and right than the occlus 11 so that the slider 14 passes through. The width of the is small, and it has a long shape back and forth.
In the case where the occlusal connector 131 or 132 having the butterfly bar 15 or the box bar 16 at one end portion is transported by the fastener transport mechanism 40 having only one transport gear 41 described above, the transport gear 41 is used for the butterfly bar 15 or box When the rod 16 passes, a meshing state is not formed, which may make it difficult to perform good conveyance with high accuracy.

On the other hand, the fastener conveyance mechanism 40C and the conveyance gear 415C on the front side meshing with the head 112 of one or more joints 11 of the joint connector 131, 132 at the front side of the needle drop position (needle hole 242). And a conveyance gear 416C on the rear side engaging the head 112 of one or more of the occlus connectors 11 and 132 behind the needle drop position (needle hole 242). As described above, when at least two transport gears 415C and 416C are provided on both sides of the needle drop position, one of the transport gears 415C or 416C is passed through even if the wing rod 15 or the box rod 16 passes the other Since the conveying gear 416C or 415C is engaged with the occlus 11, the occlusal connector 131, 132 can be conveyed accurately with good accuracy.
In addition, reverse feeding such as backstitching can also be favorably performed.

Further, the conveyance gears 415C and 416C are spur gears that match the pitch of the occlus 11 of the joint connector 131 and 132, and the pitch diameters of the conveyance gears 415C and 416C are the same. It is arranged to line up in the front-rear direction. Furthermore, the transport gears 415C and 416C are arranged such that the center-to-center distance thereof is smaller than the lengths in the front-rear direction of the butterfly rod 15 and the box rod 16. When the length of either the wing bar 15 or the box bar 16 in the front-rear direction is shorter than the other, the conveyance gear 415 C, so that the center-to-center distance in the front-rear direction is narrower than the shorter length. 416C is arranged.

[Support mechanism]
As shown in FIGS. 25 and 26, the support mechanism 43C includes upper and lower base plates 451C and 452C supporting the transfer gears 415C and 416C, the transfer mechanism 48C and the transfer motor 42C, and the base plates 451C and 452C in the X-axis direction. And a slide guide 46C slidably supported along the guide.

The upper and lower base plates 451C and 452C are both flat plates along the XY plane, and are disposed between the needle drop position and the upright barrel 22 via the slide guide 46C on the sewing machine bed 21. It is done.
The base plates 451C and 452C are connected in close proximity to each other, and support the main moving pulley 481C of the transmission mechanism 48C, the driven pulleys 488C and 489C, and the tension roller 485C rotatably around the Z axis among them. There is.
The upper base plate 451C fixes and supports the transport motor 42C on the upper surface of its right end, and the lower base plate 452C rotates the front and rear transport gears 415C and 416C around the Z axis on the lower surface of its left end It supports possible.

The slide guide 46C includes a movable block 461C fixedly connected to the lower base plate 452C and a slide rail 462C mounted on the sewing machine bed 21 along the X-axis direction, and the upper and lower bases are movable through the movable block 461C. The plates 451C, 452C can be slid along the X-axis direction.

Also, at the right end of the upper base plate 451C, a restriction bracket similar to the above-described restriction bracket 452 (see FIG. 14) for restricting the sliding movement of the upper and lower base plates 451C and 452C along the X-axis direction is provided. However, illustration is omitted. Then, by this restriction bracket, the tip of the transport gears 415C, 416C can be adjusted to a position where it can be properly meshed with the head 112 of the occlus 11 of the occlus connector 131 or 132 being transported. It has become.
The lower base plate 452C is connected to one end of a tension spring 443C that pulls the upper and lower base plates 451C and 452C to the left, so that the tooth tips of the conveying gears 415C and 416C are suitable for the occlus 11 It is held in a position where it can be engaged.
The maintenance of the fastener transfer mechanism 40C and the operation for removing the connector joint 131 or 132 from the needle plate 24 are easy by moving the upper and lower base plates 451C and 452C to the right against the tension spring 443C. Can be done.

An origin sensor 413C (refer to FIG. 31) for detecting an origin position in the rotation is juxtaposed to any one of the conveyance gears 415C and 416C, and the origin position of the conveyance gears 415C and 416C can be detected. .

[Transmission mechanism]
The transport motor 42C is a stepping motor, and can arbitrarily control the feed amount of the articulated object 131 or 132 by the transport gears 415C and 416C via the transmission mechanism 48C.
As shown in FIG. 26, the transport motor 42C is mounted on the upper base plate 451C with the output shaft directed downward.

As shown in FIGS. 25 to 28, the transmission mechanism 48C includes a main moving pulley 481C fixedly mounted on the output shaft of the conveyance motor 42C, transmission gears 482C and 483C individually meshing with the conveyance gears 415C and 416C, and a transmission gear. Driven pulleys 488C and 489C coaxially connected to the support shafts 486C and 487C of 482C and 483C, a timing belt 484C wound around the main drive pulley 481C and the driven pulleys 488C and 489C, and a tension for applying a tension to the timing belt 484C And a roller 485C.

The drive pulley 481C, the driven pulleys 488C and 489C, and the tension roller 485C are disposed between the upper and lower base plates 451C and 452C, and the transmission gears 482C and 483C and the transport gears 415C and 416C are below the lower base plate 452C. It is arranged on the side.

As described above, the transmission mechanism 48C applies rotational force to the transport gears 415C and 416C from the driven pulleys 488C and 489C via the transmission gears 482C and 483C.
As a result, the driven pulleys 488C, 489C, etc. are not disposed above the transport gears 415C, 416C, and the top can be left open, and the transport gears 415C, 416C having a smaller outer diameter than the transport gear 41 described above It can be arranged in the narrow space around.

[Application to other sewing machines]
In the above-described fastener conveyance mechanism 40C, an example is shown in which two conveyance gears 415C and 416C around the Z axis are provided, but like the above-described fastener conveyance mechanism 40A (refer to FIG. 20) A conveying gear rotating around may be provided one by one before and after the needle drop position. In this case, it is desirable that the respective conveyance gears be simultaneously rotated from the conveyance motor via the transmission mechanism.
Further, as in the fastener transport mechanism 40B (see FIG. 24), one transport gear having its center of rotation inclined obliquely upward to the left with respect to the Z-axis direction may be provided one by one before and after the needle drop position. Also in this case, it is desirable that the respective conveyance gears be provided with simultaneous rotation from the conveyance motor via the transmission mechanism.

[Control system of sewing machine]
FIG. 31 shows a control system of the sewing machine 100 on which the above-described fastener conveyance mechanism 40C is mounted. As described above, the sewing machine 100 on which the fastener conveyance mechanism 40C is mounted is suitable for sewing of the slide fastener 10C having the interlocking members 131 and 132 shown in FIGS. Therefore, after describing the control system of the sewing machine 100 on which the fastener conveyance mechanism 40C is mounted, sewing control of the slide fastener 10C by the sewing machine 100 will be described later.
In addition, it is possible to sew the slide fastener 10C also by the fastener transport mechanism 40, 40A, 40B.

As shown in FIG. 31, in the control device 90 of the sewing machine 100, the sewing machine motor 105, the needle swing motor 106, the feed adjustment motor 107, the transport motor 42C, and the cloth pressing elevator motor 253 respectively drive circuits 105a and 106a. , 107a, 42Ca, 253a.
Furthermore, an origin sensor 413C of the transport motor 42C and a setting input unit 93 are connected to the control device 90 via the respective interfaces 413Ca and 93a.
Further, an encoder 108 for detecting the rotation angle of the upper shaft is connected to the control device 90 via an interface 108 a.
As shown in FIG. 32, the setting input unit 93 has a display screen 931 at the center, and a plurality of input switches 932 to 941 around it. The setting input unit 93 inputs various parameters and the like for controlling the sewing of the slide fastener 10C. These will be described later.

Then, the control device 90 performs a predetermined control on the sewing machine motor 105, the needle swing motor 106, the feed adjustment motor 107, the conveyance motor 42C, and the cloth pressing lift motor 253, and a control program and setting for executing the control. And a memory 92 in which data is written.

[Setting parameters of sewing attachment control of slide fastener by sewing machine]
FIG. 33 is an explanatory view showing setting parameters in the case of sewing the articulator coupled body 131 of the slide fastener 10C. The setting parameters include a setting parameter related to the needle drop position (a setting parameter for controlling the needle swing motor 106 and the feed adjustment motor 107) and a setting parameter related to the feed of the interlocking member 131 of the slide fastener 10C (control the transport motor 42C). Setting parameters).
First, setting parameters for the needle drop position will be described.

FIG. 34 is an explanatory view showing a needle drop position with respect to the workpiece 2 and the interlock connector 131. As shown in FIG. In FIG. 34, the number of articulators 11 of the articulator joint 131 is shown to be smaller than the actual number for the purpose of explanation.
As shown in FIG. 33 and FIG. 34, when sewing the occlusal connector 131, a needle drop according to a sewing pattern determined for each part of the occlus connector 131 is performed. That is, the occlusal connection body 131 performs sewing by sequentially executing a plurality of types of sewing patterns selected in advance.

[Examples of various sewing patterns]
Here, a part of the sewing pattern is illustrated in FIGS. 35A to 36D. One square in each figure corresponds to the needle drop position, and the numbers in each square indicate the order in which needle drop is performed. Further, a symbol H in the figure is a reference position in the left and right direction, and is 0, which indicates the right side of this as a positive numerical value, and indicates the left side of this as a negative numerical value.

Pattern No. 1 shown in FIG. 35A is a sewing pattern called blind stitch in so-called zigzag stitching, and is suitable for forming a trapezoidal seam as viewed from above and performing needle drop around the occlusion 11 . In the case where a plurality of occluss 11 are arranged as in the occlus connector combination 131 and the occluss 11 are sewn with the blind stitch, only the number of the occluss 11 in the pattern No. 1 is used. The motion control based on is repeatedly performed.

The sewing pattern of each number consists of how many needle drop positions are made, the order of each needle drop position, the position coordinates of each needle drop position on each side (α, β, γ, δ in each figure), each needle drop The feed amount of the workpiece 2 relative to the position is determined. The needle drop parameters for determining the sewing pattern can be arbitrarily set using the setting input unit 93 described above.
At the time of sewing, the needle swing motor 106 is controlled so that the left and right position coordinates for each needle drop position are controlled in the order of the needle drop positions defined in the sewing pattern, and the feed amount for each needle drop position is obtained. The feed adjustment motor 107 is controlled.

Pattern No. 2 shown in FIG. 35B is a sewing pattern called a three-point zigzag in so-called zigzag sewing, which swings in the left-right direction at every three points to form a zigzag seam, and this sewing pattern is also around the occlus 11 It is suitable for performing needle drop. In the case where a plurality of occlusions 11 are lined up and the occlusions 11 are sewn together at three points in a staggered manner, motion control based on pattern No. 2 is repeatedly executed as many as the number of occluss 11. Ru.

Pattern No. 3 shown in FIG. 35C is a sewing pattern called so-called barring, and forms a seam that reciprocates linearly in the left-right direction. This sewing pattern is suitable for preventing the fray of the seam by repeating the process a plurality of times and for fastening and fixing the sewn product.

Pattern No. 4 shown in FIG. 35D is a sewing pattern called so-called lock stitching, which maintains a fixed position in the left-right direction and forms straight seams at fixed intervals toward the rear.
Pattern No. 5 shown in FIG. 36A is a sewing pattern called a so-called lock stitch (return stitch), which maintains a constant position in the left-right direction and forms straight seams at regular intervals toward the front.

Pattern No. 6 shown in FIG. 36B is a sewing pattern called a so-called two-point zigzag, which swings in the left-right direction at every two points to form a zigzag stitch toward the rear.
A pattern No. 7 shown in FIG. 36C is a sewing pattern called a so-called two-point zigzag (return stitch), which swings in the left-right direction at every two points to form a zigzag seam toward the front.

Pattern No. 8 shown in FIG. 36D is a sewing pattern of lock stitch, and has the same shape as pattern No. 4, but forms straight seams at shorter intervals.

The parameters of the sewing pattern can be set from the setting input unit 93 shown in FIG. By performing the switching operation, the setting input unit 93 can switch the display image indicating the input content displayed on the display screen 931, and change the function assignment by the surrounding input switches 932 to 941.
And FIG. 32 shows the display state of the display image for inputting the needle drop parameter of the sewing pattern.

The input switches 932 and 933 in the setting input unit 93 of FIG. 32 input increase and decrease of the needle drop position of the sewing pattern.
The input switches 934 and 935 input an increase or decrease of left and right position coordinates at the selected needle drop position.
The input switches 936, 937 input an increase or decrease in the feed amount of the workpiece 2 at the selected needle drop position.
The input switches 938 and 939 enter addition and deletion of needle drop positions.
The input switch 940 inputs that it is the last needle of the sewing pattern.
The input switch 941 determines the content set by the input operation of the input switches 932 to 940 as a needle drop parameter of the sewing pattern.

The data of the sewing pattern for which the needle drop parameter has been determined is registered in the memory 92.
The sewing pattern of each number described above is an example of one previously set and registered by the setting input unit 93 of FIG.
For example, data of a sewing pattern in which the above parameters are defined for the needle drop points from the stitch a1 to a6 shown in FIG. You may.
Similarly, the data of the sewing pattern in which the above parameters are defined for the needle drop points of the stitches a1 and a3 to a5 shown in FIG. It may be registered and applied to sewing of each occlus 11 of the slide fastener 10C.

[Specific example of setting parameter related to needle drop position]
The contents of the setting parameters relating to the needle drop position for sewing the occlusal connector 131 of FIG. 34 will be described based on the left half of FIG.
In FIG. 34, Ps indicates a needle drop position which is a sewing start position, and Pe indicates a needle drop position which is a sewing end position.
In FIG. 33, the “sewing step” indicates the order of sewing patterns to be executed.
“Pattern No.” indicates the pattern number of the sewing pattern executed in each “sewing step”.
The “number of stitches of the sewing machine” indicates up to what stitch of the selected sewing pattern. For example, when the number of sewing needles exceeds the number of stitches defined in the selected sewing pattern, for example, an integral multiple, the sewing of the sewing pattern is repeated integer times.

Pattern No. 7 is selected at sewing machine step 0 in FIG. 33, and the number of sewing needles is set to zero.
In this sewing machine step 0, the positioning operation of the sewing needle to the sewing start position Ps in FIG. 34 is set. That is, according to the setting contents of sewing machine step 0, the needle swing is performed so that the sewing needle is positioned at the needle falling position of the first stitch of pattern No. I can not do it.

Pattern No. 7 is selected in the sewing machine step 1 of FIG. 33, and the number of sewing needles is set to five.
This sewing machine step 1 corresponds to the arrow P1 in FIG. 34, and 2 according to the needle drop parameter of pattern No. 7 with respect to the end of the cord-like body 12 protruding from the front end of the articulated connector 131. A reverse stitch of five stitches of a point zigzag is executed.

Pattern No. 6 is selected in the sewing machine step 2 of FIG. 33, and the number of sewing needles is set to 6.
This sewing machine step 2 corresponds to the arrow P 2 in FIG. 34, and 2 according to the needle drop parameter of pattern No. 6 with respect to the end of the cord-like body 12 protruding from the front end of the articulated connector 131. Stitching of six stitches of a point zigzag is executed.

In the sewing machine step 3 of FIG. 33, pattern No. 8 is selected, and the number of sewing needles is set to 3.
This sewing machine step 3 corresponds to the arrow P3 in FIG. 34, and along the end of the upper stop 17, the lock stitch for three stitches is executed according to the needle drop parameter of pattern No. 8 on the left side thereof. .

Pattern No. 3 is selected in the sewing machine step 4 of FIG. 33, and the number of sewing needles is set to 3.
This sewing machine step 4 corresponds to the arrow P4 in FIG. 34, and according to the needle drop parameter of pattern No. 3 across the right and left of the cord-like body 12 between the upper stop 17 and the next occlus 11. A barb for 3 stitches is executed.

Pattern No. 1 is selected in the sewing machine step 5 of FIG. 33, and the number of sewing needles is set to n × 4 (n is the number of the occlus 11 of the interlocking connector 131, for example, n in the example of FIG. 34). = 3).
This sewing machine step 5 corresponds to the arrow P5 in FIG. 34, and from the upper side to the left side of the articulator 11, the zigzag stitching by the blind stitch consisting of 4 needles is executed according to the needle drop parameter of pattern No. 1. Then, the zigzag stitch with the same blind stitch is repeatedly performed on all the occlus 11.

Pattern No. 3 is selected in the sewing machine step 6 of FIG. 33, and the number of sewing needles is set to four.
The sewing machine step 6 corresponds to the arrow P6 in FIG. 34, and the needle of pattern No. 3 is dropped across the left and right of the string-like body 12 between the occlus 11 and the butterfly rod 15 next to the butterfly rod 15. According to the parameters, barking for 4 stitches is performed.

Pattern No. 4 is selected in the sewing machine step 7 of FIG. 33, and the number of sewing needles is set to 7.
The sewing machine step 7 corresponds to the arrow P7 in FIG. According to, lock stitch for 7 stitches is executed.

Pattern No. 5 is selected in sewing machine step 8 of FIG. 33, and the number of sewing needles is set to 6.
The sewing machine step 8 corresponds to the arrow P8 in FIG. 34, and the needle drop parameter of pattern No. 5 through the respective threading holes 152 from the rear end to the front end of the sewn portion 151 of the butterfly rod 15 According to the backstitching of 6 stitches of the main stitch is performed.

In addition, the setting contents of "sewing step", "pattern No.", and "number of sewing needles" which are setting parameters related to the needle drop position for sewing sewing of the occlusal connection body 131 shown in FIG. , And can be set arbitrarily by the setting input unit 93.
That is, the setting input unit 93 switches the display image of the display screen 931 to the input image of the setting parameter related to the needle drop position by the switching operation, and uses the surrounding input switches 932 to 941 to select “sewing step”, “pattern”. "No." and "No. of sewing needle" can be set.
Then, the setting content of the setting parameter related to the needle drop position is also registered in the memory 92.

Although the specific example of the setting parameter related to the needle drop position has been exemplified for sewing sewing of the occlus connector 131, setting parameters can be similarly determined for sewing of the occlus connector 132 as well. it can.
That is, since the box bar 16 is located at the front end and the upper stop 17 is located at the rear end in the case of sewing of the occlusal joint 132, the sewn portion 161 of the box bar 16 is sewed during the sewing process. At the end of sewing, the barbs for the upper stop 17 and two points for the end of the string-like body 12 protruding from the rear end of the interlocking connector 132 at the end of sewing The setting parameters are set so that the zigzag stitching and the reverse stitching thereof are performed in a staggered manner, but in consideration of these, the same setting as sewing of the occlus connector 131 is performed.

[Setting parameters related to feeding of the articulated body]
Next, the contents of the setting parameters relating to the feed of the articulated connector 131 of the slide fastener 10C will be described.
The right half of FIG. 33 shows the contents of the setting parameters relating to the feeding of the occlus connection body 131 for sewing the occlusal connection body 131 of FIG.
That is, as described above, needle-dropping is performed according to the sewing pattern decided for each part of the occlusal connector 131 as described above. However, fasteners are performed by the device patterns corresponding to these sewing patterns. Feeding of the occlus connector 131 is performed by the transport mechanism 40C.

[Example of various device patterns]
FIG. 37 shows a selected image of the device pattern displayed on the display screen 931 of the setting input unit 93 when setting parameters relating to the feeding of the articulated object 131.
These device patterns will be described in order.

The device pattern of “Fastener Overhead” has the feed amount and the height of the presser foot 25 suitable for performing overturn stitching around the articulator 11 like pattern No. 1 or pattern No. 2 of the sewing pattern described above. Is set. That is, the feed amount is set to coincide with the feed amount of the sewing material for each stitch of pattern No. 1 or pattern No. 2 of the sewing pattern.
Specifically, the length of a quarter of the pitch of each occlus 11 (the distance from the center of the adjacent occlus 11 in the Y-axis direction to the center of the occlus 11) in the occlus connector 131 is one unit The scaling factor with respect to the reference feed amount is set in the device pattern as the reference feed amount of
In the sewing pattern of pattern No. 1 or pattern No. 2, one stitch is stitched to one occlus 11 by the four hands, so in the device pattern of "fastener crook" it is a quarter of the pitch of the occlus 11 The reference feed amount × 1 is set.
Further, the height of the cloth presser 25 is set to a normal height at which the press pressure is normal.

The device pattern of “cord zigzag” is a feed suitable for performing two-fold zigzag stitching to the end of the cord-like body 12 as in the pattern No. 6 and pattern No. 7 of the sewing pattern described above. The amount is set. That is, the feed amount which matches the feed amount of the sewing material for each stitch of pattern No. 6 and pattern No. 7 of the sewing pattern is set.
Further, the height of the cloth presser 25 is set to a small presser-lifting height at which the presser pressure is lower than usual.
For example, when the feed amount of the two-point zigzag to the string 12 is set to a width equal to the reference feed amount, the reference feed amount × 1 is set in the device pattern of “string stagger”.

As for the device pattern of “upper limit lock stitch”, a feed amount suitable for lock stitching along the end of the upper limit 17 is set as in pattern No. 8 of the sewing pattern described above. That is, the feed amount which matches the feed amount of the sewing material for each needle of pattern No. 8 of the sewing pattern is set.
Further, the height of the cloth presser 25 is set to a normal height at which the press pressure is normal.
For example, when the feed amount of lock stitching performed along the end of the upper stop 17 is set to a width equal to the reference feed amount, in the device pattern of “upper stop lock stitch”, reference feed amount × 1 Is set.

As the pattern No. 3 of the sewing pattern described above, in the device pattern of “upper detent and detent”, a feed amount suitable for detenting between the upper detent 17 and the articulator 11 is set.
Further, the height of the cloth presser 25 is set to a normal height at which the press pressure is normal.
For example, when the feed amount of the detent is set to 0, 0 is set in the device pattern of “upper detent and detent”.

The device pattern of the “opener lock stitch” has threading holes 152 and 162 of the sewn portions 151 and 161 of the butterfly rod 15 and the box rod 16 like pattern No. 4 and pattern No. 5 of the sewing pattern described above. The feed amount suitable for lock stitching is set according to the interval of. That is, the feed amount which matches the feed amount of the sewing material for each stitch of pattern No. 4 and pattern No. 5 of the sewing pattern is set.
Further, the height of the cloth presser 25 is set to a small presser-lifting height at which the presser pressure is lower than usual.
For example, when the interval between the threading holes 152 and 162 of the wing bar 15 and the box bar 16 is set to a width twice as high as the reference feed amount, the reference feed amount in the device pattern of "opener lock stitch" × 2 is set.

The device pattern of the "opening tool zigzag" is set to a feed amount suitable for performing the zigzag sewing on the butterfly bar 15 and the box bar 16.
Further, the height of the cloth presser 25 is set to a small presser-lifting height at which the presser pressure is lower than usual.
For example, in the case where the interval when performing the zigzag sewing on the butterfly rod 15 or the box rod 16 is set to the same width as the reference feed amount, the reference feed amount × 1 is set in the device pattern of “opener stagger”. Be done.

The device pattern of the "open-tool clamp" is suitable for clamping between the butterfly bar 15 and the occlus 11 or between the box bar 16 and the coupler 11 as in pattern No. 3 of the sewing pattern described above The feed amount is set.
Further, the height of the cloth presser 25 is set to a small presser-lifting height at which the presser pressure is lower than usual.
For example, when the feed amount of the detent is set to 0, 0 is set in the device pattern of the “open-tool detent”.

"Sew complete" indicates the end of sewing, and the feed amount is set to zero.

The feed amount in each of the device patterns can be arbitrarily set by the setting input unit 93.
That is, the setting input unit 93 switches the display image of the display screen 931 to the input image of the device pattern by the switching operation, and uses the input switches 932 to 941 around the “feed amount”, “cloth press (press pressure) Can be set.
Also, the size of the reference feed amount can be arbitrarily set by inputting a specific numerical value.
The feed amount in the device pattern, the setting content of the cloth pressing height, and the set value of the reference feed amount are also registered in the memory 92.

[Specific example of setting parameters related to feeding of the articulated body]
The contents of the setting parameters relating to the feeding of the articulated object of FIG. 33 will be described with reference to FIG.
In FIG. 33, sewing machine steps 0 to 8 in setting parameters related to the needle drop position correspond individually to apparatus steps 1 to 9 in the setting parameters related to feeding of the articulated object assembly.
In FIG. 33, "device step" indicates the order of device steps to be performed.
“Device pattern” indicates the type of the device pattern and the feed direction described above.
"Continuous needle number" indicates the number of needles continued by the selected device pattern.

In the device step 1 of FIG. 33, the device pattern of "fastener" is selected, the feed direction is set to the normal feed direction (the direction in which the articulated object 131 is sent forward), and the number of sewing needles is one.
In this apparatus step 1, the amount of feed operation of the interlocking member 131 at the time of the positioning operation of the sewing needle to the sewing start position Ps in FIG. 34 is set.

In the device step 2 of FIG. 33, the device pattern of “cord zigzag” is selected, the feed direction is set in the reverse feed direction (the direction in which the articulated object 131 is sent backward), and the number of sewing needles is five.
This device step 2 corresponds to the arrow P1 in FIG. 34, and is performed on the end of the cord-like body 12 protruding from the front end of the occlusal connector 131, and the stitches for five stitches of five stitches are repeated. Reverse feed of the occlusal connector 131 is executed corresponding to.

In the device step 3 of FIG. 33, the device pattern of “cord zigzag” is selected, the feed direction is set to the normal feed direction, and the number of sewing needles is set to six.
This device step 3 corresponds to the arrow P2 in FIG. 34, and is performed on the end of the string-like body 12 protruding from the front end of the occlusal connector 131, which is a stagger of two needles of six needles. The positive feed of the occlusal connector 131 is executed corresponding to the sewing.

In the device step 4 of FIG. 33, the device pattern of "fastener" is selected, the feed direction is set to the normal feed direction, and the number of sewing needles is set to 3.
This device step 4 corresponds to the arrow P3 in FIG. 34, and the positive feed of the interlocking member 131 is executed corresponding to the lock stitch of 3 stitches performed along the end of the upper stop 17. Ru.

In the device step 5 of FIG. 33, the device pattern of “upper detent bar stop” is selected, the feed direction is set to the forward feed direction, and the number of sewing needles is set to 4.
This device step 5 corresponds to the arrow P4 in FIG. 34, and the feed of the interlocking member 131 is stopped corresponding to the four needles, which is performed between the upper stop 17 and the occlus 11 adjacent thereto. Ru.

In the device step 6 of FIG. 33, the device pattern of “fastener over” is selected, the feed direction is the normal feed direction, and the number of sewing needles is n × 4 (n is the number of the occlus 11 of the interlocking connector 131) ing.
This device step 6 corresponds to the arrow P5 in FIG. 34, and the positive feed of the occlusal connector 131 is executed corresponding to the zigzag sewing by the blind stitch consisting of 4 needles performed for each occlus 11 Be done. Then, forward feeding of the occlus connector assembly 131 corresponding to the zigzag stitching by the blind stitching performed on all the occlus 11 is repeatedly executed.

In the device step 7 of FIG. 33, the device pattern of “open-tool bar-locking” is selected, the feed direction is set to the normal feed direction, and the number of sewing needles is set to four.
This device step 7 corresponds to the arrow P6 in FIG. 34, and the feed of the articulated member 131 is stopped between the articulator 11 and the butterfly rod 15 corresponding to the four-needle clamp.

In the device step 8 of FIG. 33, the device pattern of “opener lock stitch” is selected, the feed direction is set to the normal feed direction, and the number of sewing needles is set to 7.
This device step 8 corresponds to the arrow P7 in FIG. 34, and corresponds to the lock stitch for seven stitches, which is performed from the front end to the rear end of the sewn portion 151 of the butterfly rod 15 A forward feed of 131 is performed.

In the device step 9 of FIG. 33, the device pattern of “opener lock stitch” is selected, the feed direction is set to the reverse feed direction, and the number of sewing needles is set to 6.
This device step 9 corresponds to the arrow P8 in FIG. 34, and is an occlusal member corresponding to the backstitching of 6 stitches of the main stitch, which is performed from the rear end to the front end of the sewn portion 151 of the butterfly rod 15. Reverse feed of the connector 131 is performed.

In the device step 10 of FIG. 33, the device pattern of “sewing completed” is set.
By this device step 10, not only the feed operation of the occlus connector 131 but also the entire sewing operation is completed.

In addition, the setting contents of “apparatus step”, “apparatus pattern”, and “number of continuous stitches” which are setting parameters related to feeding of the articulated object coupling body shown in FIG. Can.
FIG. 38 shows a display image of the display screen 931 of the setting input unit 93 when setting of setting parameters relating to feeding of the articulated object coupled body.
The setting input unit 93 switches the display image of the display screen 931 to the input image of the setting parameter relating to the feeding of the articulated object of FIG. 38 by the switching operation, and uses the surrounding input switches 932 to 941 to perform “apparatus step”. , "Device pattern", "number of continuous stitches" can be set.
Then, the set parameters relating to the feeding of the coupled occlus connector are integrally registered in the memory 92 as setting parameters for the sewing attachment control of the slide fastener in association with the setting parameters relating to the needle drop position described above. Be done. At the time of sewing, setting parameters of sewing control of the registered slide fastener are read out and operation control of sewing is executed.

In the specific example of the setting parameter related to feeding of the above-described occlus connector, the sewing sewing of the occlus connector 131 is exemplified. However, the setting parameter is similarly applied to the sewing of the occlus connector 132 as well. It can be determined.
That is, since the box bar 16 is located at the front end and the upper stop 17 is located at the rear end in the case of sewing of the occlusal joint 132, the sewn portion 161 of the box bar 16 is sewed during the sewing process. At the end of sewing, the barbs for the upper stop 17 and two points for the end of the string-like body 12 protruding from the rear end of the interlocking connector 132 at the end of sewing Since the zigzag stitching and the reverse stitching thereof are performed in a staggered manner, setting parameters relating to the feeding of the articulated connector are set to correspond to them. However, in consideration of these, sewing and stitching of the articulated connector 131 are performed. Similar settings are made.

[Sewing operation of slide fastener product by zigzag sewing machine]
The sewing operation of the zigzag sewing machine 100 on which the fastener conveyance mechanism 40C is mounted, taking as an example the case of sewing the occlusal coupling body 131 on the left side of the slide fastener 10C described above to the end edge 2a of the workpiece 2 as shown in FIG. And FIG. 34 will be described.

First, the setting parameter for sewing control of the slide fastener is read from the memory 92, and the needle swing motor 106 and the feed adjustment motor 107 are controlled according to the sewing machine step 0 of the setting parameter related to the needle drop position in FIG. The sewing needle is positioned at the sewing start position Ps.
Further, according to the device step 1, the conveyance motor 42C and the cloth presser elevating motor 253 are controlled, the cloth presser 25 is kept as a normal press pressure, and the occlusal coupled body 131 is positively fed by one stitch by the reference feed amount x1.

Next, according to the sewing machine step 1 of the setting parameter regarding the needle drop position of FIG. 33, the sewing machine motor 105 is activated, the needle swing motor 106 and the feed adjustment motor 107 are controlled, and according to the arrow P1 of FIG. Stitched reverse stitches of 5 stitches are performed on the front end.
Also, in synchronization with this, the conveyance motor 42C and the cloth presser elevating motor 253 are controlled according to the device step 2, the cloth presser 25 is made to have a low presser pressure, and the occlus connector 131 is five needles by the reference feed amount × 1. Minutes are sent back.

Next, the needle swing motor 106 and the feed adjustment motor 107 are controlled according to the sewing machine step 2 of the setting parameter regarding the needle drop position in FIG. 33, and 6 needles for the front end of the cord 12 according to arrow P2 in FIG. Stitching for minutes is performed.
Further, in synchronization with this, the conveyance motor 42C and the cloth presser elevating motor 253 are controlled according to the device step 3, the presser 25 is set to the low press pressure, and the occlus connector 131 has six needles by the reference feed amount × 1. It will be sent regularly.

Next, the needle swing motor 106 and the feed adjustment motor 107 are controlled according to the sewing machine step 3 of the setting parameter regarding the needle drop position in FIG. 33, and according to the arrow P3 in FIG. Lock-stitching is performed.
Also, in synchronization with this, the conveyance motor 42C and the cloth presser elevating motor 253 are controlled according to the device step 4, the cloth presser 25 is made to be the normal press pressure, and the occlus connector 131 is three needles at the reference feed amount × 1. It will be sent regularly.

Next, the needle swing motor 106 and the feed adjustment motor 107 are controlled according to the sewing machine step 4 of the setting parameter regarding the needle drop position of FIG. 33, and between the upper stop 17 and the articulator 11 according to arrow P4 of FIG. A 4-needle bark is held.
Further, in synchronization with this, according to the device step 5, the transport motor 42C and the cloth presser elevating motor 253 are controlled, the cloth presser 25 is made to be the normal presser pressure, and the feeding of the articulated member 131 is stopped.

Next, the needle swing motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 5 of the setting parameter regarding the needle drop position in FIG. 33, and in accordance with arrow P5 in FIG. There are 4 needles each.
Further, in synchronization with this, the conveyance motor 42C and the cloth presser elevating motor 253 are controlled according to the device step 6, and the cloth presser 25 is set as the normal presser pressure, and the occlus connector 131 is n × with the reference feed amount × 1. It is fed forward with 4 hands.

Next, the needle swing motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 6 of the setting parameters regarding the needle drop position in FIG. 33, and 4 between the articulator 11 and the butterfly rod 15 in accordance with arrow P6 in FIG. Stucking of the needle is performed.
Further, in synchronization with this, according to the device step 7, the transport motor 42C and the cloth presser elevating motor 253 are controlled, the presser 25 is made to have a low press pressure, and the feeding of the articulated member 131 is stopped.

Next, the needle swing motor 106 and the feed adjustment motor 107 are controlled in accordance with the sewing machine step 7 of the setting parameter regarding the needle drop position in FIG. 33, and from the front end of the sewing portion 151 of the butterfly rod 15 in accordance with arrow P7 in FIG. At the rear end, lock stitches of seven stitches are performed on each threading hole 152.
Further, in synchronization with this, the conveyance motor 42C and the cloth presser elevating motor 253 are controlled according to the device step 8, the cloth presser 25 is set to the low presser pressure, and the occlus connector 131 has seven needles by the reference feed amount × 2. It will be sent regularly.

Next, the needle swing motor 106 and the feed adjustment motor 107 are controlled according to the sewing machine step 8 of the setting parameter regarding the needle drop position in FIG. 33, and the rear end portion of the sewing portion 151 of the butterfly rod 15 according to arrow P8 in FIG. A total of six stitches of reverse stitching are performed on each threading hole 152 from the front to the front end.
Further, in synchronization with this, the conveyance motor 42C and the cloth presser elevating motor 253 are controlled according to the device step 9, the presser 25 is set to the low press pressure, and the occlus connector 131 has six needles by the reference feed amount × 2. Minutes are sent back.

Thereby, the sewing needle reaches the sewing end position Pe. Then, according to the device step 10, the transport motor 42C and the cloth presser elevating motor 253 are controlled, the cloth presser 25 is lifted to the cloth release position, the feeding operation of the transport gears 415C and 416C is stopped, and the sewing machine motor 105 is driven. Is also stopped.
Then, sewing of the occlusal connection body 131 is finished.

[Technical effect of the second embodiment]
The zigzag sewing machine 100 provided with the above-mentioned fastener conveyance mechanism 40C has a conveyance gear 415C engaging with the occlus 11 at the front side of the needle drop position and a conveyance gear 416C engaging with the occlus 11 at the rear side of the needle fall position. There is.
For this reason, even when sewing the occlus connection body 131 having the hinge bar 15 and the occlus connection body 132 having the box bar 16 to the sewn article 2, the butterfly bar 15 and the box bar 16 are in the vicinity of the needle drop position. When passing, at least one of the transport gears 415C and 416C can be meshed with the occlus 11, and the occlusal connector 131, 132 can be transported more accurately, and sewing with high sewing quality It becomes possible to do sewing.

The zigzag sewing machine 100 having the fastener conveyance mechanism 40C also includes a setting input unit 93 to which parameters including the type of sewing (sewing pattern), order, number of stitches, and movement amount are input, and the control device 90 inputs setting The feed adjustment motor 107 of the cloth feed mechanism, the needle swing motor 106, the sewing machine motor 105, and the fastener conveyance mechanism 40C so that sewing is performed according to the setting parameters of the occlusal connection sewing including these parameters input from the unit 93. Control.
For this reason, when sewing the occlusal connection bodies 131 and 132, for example, when the type of sewing changes from halfway to main stitching, such as zigzag sewing or barking, the sewing is stopped with good timing and sewing is performed. When the sewing operation of the occlusal connector 131, 132 is started, the sewing operation can be completed without performing the operation until the end. For this reason, it is possible to dramatically reduce the work load on the operator of the sewing machine.
In addition, since the type of sewing does not require a switching operation in the middle, the influence of the operating skill of the sewing machine operator is reduced, and high quality sewing can be stably performed regardless of the presence or absence of skill. .

[Others]
The structure of the head 112 of the articulator 11 of the articulator combination 13, 131, 132 of the slide fasteners 10, 10C is not limited to that shown in FIG. For example, it is possible to apply the head structure of a wide variety of occlus which are utilized for a common slide fastener.
Also, similarly, the shapes of the butterfly bar 15 and the box bar 16 of the slide fastener 10C can be applied in various shapes.

Also, when the feed adjustment motor is provided in the cloth feed mechanism and the feed adjustment motor is adjusted to adjust the feed amount at a prescribed timing based on the detection of the encoder of the sewing machine motor, the needle is dropped to each needle drop point. In addition to the needle swing amount of the needle swing motor and the forward movement amount by the transport motor 42, the zigzag sewing machine 100 is prepared in advance in the data memory by specific numerical data of the feed amount of the sewing material by the feed adjustment motor. The stitching of the occlusal connector 13, 131, 132 according to the embodiment can be performed better.

The present invention can be used to sew on a slide fastener in which an occlus is connected by a cord-like body.

1, 1A, 1B, 1C Slide Fastener Product 2 Material to be sewn 2a End edge 2b Overlaid portion 10, 10C Slide Fastener 11 Occlus 12 String- like body 13, 131, 132 Occlusal connector 14 Slider 15 Butterfly bar 16 Box Bar 151, 161 Sewing portion 152, 162 Threading hole 20 Sewing frame 24 Needle plate (fastener guide)
26 Stitch 40, 40A, 40B, 40C Fastener transfer mechanism 41, 41A, 41B, 415C, 416C Transfer gear 42, 42A, 42B, 42C Transfer motor 43, 43C Support mechanism 45 Base plate 46, 46C Slide guide 47 Air cylinder ( Actuator)
90 Control device 93 Setting input portion 931 Display screen 932 to 941 Input switch 100 Stitching sewing machine (sewing machine)
105 Sewing machine motor 106 Needle swing motor 107 Feed adjustment motor 111 Leg 112 Head 116, 117 Side 242 Needle hole 243 Feed groove 253 Elevation motor 413 Origin sensor 414 Detection plate a1, a11 Head needle drop point a2 to a6 Edge part Needle drop point D Lower thread (sewing thread)
R1, R2 area t1 to t7 Stitch U Upper thread (stitch thread)

Claims (13)

1. It is a sewing machine which sews on the end edge part of a sewing material the occlusal joint of the slide fastener which has the occlusal joint which connected a plurality of occluss by a string-like body,
   A cloth feeding mechanism for feeding a workpiece;
   And a fastener transfer mechanism for transferring the occlusal connector.
   The said fastener conveyance mechanism is the conveyance gear provided with the tooth | gear which bites in the said occlus of the said occlus coupling body,
   A transport motor that imparts a rotational motion to the transport gear;
   A sewing machine comprising: a fastener guide for guiding the occlusal connector in the same direction as the feed direction of the workpiece.
2. The transport gear meshing with the articulator on the upstream side of the sewing material in the needle drop position and the transport gear meshing on the bite downstream of the sewing material in the needle drop position. The sewing machine according to claim 1, characterized in that
3. The fastener guide has a feed groove formed on a needle plate for guiding the plurality of occlus in the joint assembly in the same direction as the feed direction of the article to be sewn. The sewing machine according to 1 or 2.
4. The sewing machine according to any one of claims 1 to 3, further comprising: a fastener press which suppresses upward detachment of the occlusal connector transported by the transport gear.
5. The sewing machine according to any one of claims 1 to 4, wherein the transport gear is movably supported along a direction away from the needle drop position.
6. The sewing machine according to claim 5, wherein the transport gear is movably supported along a direction away from the needle drop position together with the transport motor.
7. The sewing machine according to claim 5 or 6, further comprising an actuator serving as a drive source of movement movement of the transport gear in a direction away from the needle drop position.
8. The sewing machine according to any one of claims 1 to 7, wherein stitches of a lock stitch are formed to sew the occlusal connector on an end edge portion of an article to be sewn.
9. The sewing machine according to any one of claims 1 to 8, which is a zigzag sewing machine.
10. The sewing machine is
    A sewing machine motor that moves the sewing needle up and down,
    An encoder for detecting an output shaft angle of the sewing machine motor;
    A controller for controlling the transport motor;
    The controller is
    For each needle drop, the transport motor is driven at a prescribed timing based on the detection of the encoder to move the articulated object in the feed direction to the next needle drop point. The sewing machine according to any one of claims 1 to 9, characterized in that.
11. It has a setting input unit to which parameters including the sewing type, order, number of stitches and movement amount are input,
    The sewing machine according to claim 10, wherein the control device controls the cloth feeding mechanism and the fastener conveyance mechanism so that sewing is performed according to the parameter input from the setting input unit.
12. The sewing machine is
    The needle swing motor is provided to move the sewing needle arbitrarily along the direction orthogonal to the conveying direction of the connector.
    The controller is
    The needle swing motor is driven at a predetermined timing based on the detection of the encoder for each needle drop, and the needle swing is performed so as to be the needle swing amount up to the next needle drop point. The sewing machine according to 10 or 11.
13. The cloth feed mechanism comprises a feed adjustment motor,
    The controller is
    For each needle drop, the feed adjustment motor is driven at a prescribed timing based on the detection of the encoder to move the material to be sewn in the feed direction to the next needle drop point The sewing machine according to any one of claims 10 to 12, characterized in that.

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