CN108622704B

CN108622704B - Zipper long chain conveying device

Info

Publication number: CN108622704B
Application number: CN201710157779.1A
Authority: CN
Inventors: 伊井昌幸
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2017-03-16
Filing date: 2017-03-16
Publication date: 2019-12-24
Anticipated expiration: 2037-03-16
Also published as: CN108622704A

Abstract

The invention provides a zipper long chain conveying device, which can improve the precision of the supply position of a zipper long chain and can easily cope with the manufacturing error and size change of manufacturing parts according to each production batch. The zipper long chain conveying device is provided with: a pair of left and right guide rails (23) arranged in parallel along the conveying direction (FL) of the zipper long chain (C1); a guide groove (23g) which is formed along the guide rail (23) and has a curved portion (23gv) that is inclined outward in the width direction of the long chain fastener (C1) as the guide groove advances in the conveyance direction (FL) of the long chain fastener (C1); a pair of left and right jig holders (22) that are supported so as to be slidable along a guide rail (23) and that hold a jig (21); a guided pin (21gp) that advances and retreats and moves the jig (21) held by the jig holder (22) in the width direction along the guide groove (23 g); and a holder stopper (24) that stops the movement of the clip holder (22) relative to the guide rail (23) in the conveying direction (FL), and can adjust the stop position to determine the engagement position of the guided pin (21gp) and the curved portion (23fv), wherein the pair of left and right clip holders (22) move in the front-rear direction on the pair of left and right guide rails (23) along the conveying direction (FL) of the fastener chain (C1).

Description

Zipper long chain conveying device

Technical Field

The present invention relates to a fastener chain conveying apparatus used when a continuous long fastener chain is sequentially processed to form a slide fastener.

Background

The conventional slide fastener assembling apparatus includes: a first conveying device for supplying the zipper long chain to the component mounting device; a cutting device for cutting the long chain of the zipper; and a 2 nd conveying device for moving the long chain after the components are mounted and discharging the cut long chain to the outside of the device. A fastener stringer moving apparatus as a 1 st conveying apparatus applied to this fastener assembling apparatus includes the following components and the like as disclosed in patent document 1: left and right clamps (grip) for gripping a pair of left and right fastener tapes of the fastener chain; a pair of left and right clip holders that hold the clips and are movable in the conveying direction of the fastener chain; and a pair of left and right guide rails that slidably support the clip holders and convey the fastener chain to a predetermined position of the component mounting apparatus while the fastener chain is held by the clip.

Documents of the prior art

Patent document

Patent document 1: japanese Kokoku publication Sho 45-12162

Disclosure of Invention

In the fastener stringer moving apparatus described in patent document 1, it is desirable to accurately convey and position the fastener stringer with respect to the component mounting apparatus. The reason for this is that, in some cases, a minute dimensional accuracy error occurs for each production lot of the fastener chain and the component to be mounted, and therefore, the accuracy of the mounting position of the component is not adjusted, and mounting failure or the like occurs, which affects the yield, and it is desired to perform positioning with high accuracy. Further, when the size of the slide fastener is changed, there is a case where parts of the apparatus must be replaced in accordance with the size, and there is a problem in that productivity is improved.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a fastener stringer conveying apparatus capable of improving the accuracy of a supply position of a fastener stringer with respect to a component mounting apparatus and easily coping with manufacturing errors and dimensional changes of manufactured components for each production lot.

The above object of the present invention is achieved by the following configuration.

(1) A slide fastener stringer transfer device for gripping a pair of right and left fastener tapes of a slide fastener stringer by right and left grippers to transfer the slide fastener stringer to a predetermined position, comprising: a pair of left and right guide rails arranged in parallel along the conveying direction of the long chain; a guide groove formed along the guide rail and having a curved portion inclined outward in the width direction of the fastener chain as the guide groove advances in the conveying direction of the fastener chain; a pair of left and right jig holders which are supported slidably along the guide rail and hold the jigs so that the jigs can move in the width direction of the guide rail; a guided pin that advances and retreats the clip held by the clip holder along the guide groove and moves in the width direction; and a retainer stopper that stops movement of the clip retainer relative to the guide rail in the conveying direction, and determines an engagement position of the guided pin and the curved portion by adjusting a stop position, wherein the pair of left and right clip retainers move in the front-rear direction on the pair of left and right guide rails along the conveying direction of the fastener chain.

(2) The slide fastener stringer conveying apparatus according to (1), wherein the retainer stopper is provided on each of the left and right guide rails.

(3) The slide fastener stringer conveying apparatus according to (1) or (2), wherein the retainer stopper is attached to a front end portion of the guide rail, and includes: a position restricting portion that abuts against a front surface wall on the advancing direction side of the jig holder; and an adjusting screw portion capable of advancing and retreating the position of the position regulating portion along the conveying direction.

(4) The slide fastener stringer feeding device according to the above (3), wherein the retainer stopper has a retainer pressing portion which is disposed to protrude toward the clip retainer side from the distal end surface of the position regulating portion and which can elastically press the front surface wall in opposition in the feeding direction.

(5) The slide fastener stringer conveying apparatus according to (4), wherein the position regulating portion has a recess portion having a distal end surface side opening, and the holder pressing portion is built in the recess portion.

(6) The slide fastener stringer conveying device according to (1) or (2), wherein a rail biasing member for elastically biasing the guide rail to an upstream side in the conveying direction is provided, and a rail stopper which abuts against a rail rear end surface of the guide rail and is capable of adjusting a front-rear position of the guide rail is provided on the upstream side in the conveying direction with respect to the guide rail.

(7) The slide fastener stringer conveying apparatus according to (6), wherein the rail stopper is provided for each of the left and right guide rails.

Effects of the invention

According to the present invention, since the movement stop of the clip holder holding the clip holding the fastener tape with respect to the guide rail is performed by the holder stopper and the holder stopper is configured to be able to adjust the stop position of the clip holder, the engagement position of the guided pin provided integrally with the clip with respect to the guide groove can be adjusted, and the opening interval of the left and right clips when the guided pin stops at the bent portion of the guide groove can be adjusted. As a result, the accuracy of the attachment position of the fastener tape can be improved with respect to the attachment position of the slider and the upper stop portion. Therefore, it is possible to provide a highly versatile slide fastener stringer conveying apparatus capable of easily and appropriately coping with, for example, dimensional errors and dimensional changes of assembled parts due to different manufacturing lots of the assembled parts, and contributing to improvement in productivity.

Drawings

Fig. 1 is a plan view showing an example of a slide fastener.

Fig. 2 is a schematic plan view illustrating a conveying operation of the fastener stringer with respect to the attachment position of the slider and the upper stop portion.

Fig. 3 is a perspective view showing the slide fastener stringer transfer apparatus of the present invention.

Fig. 4 is a side view of the zipper chain conveyor shown in fig. 3.

FIG. 5 is a plan view of the slide fastener stringer transfer device shown in FIG. 3

Fig. 6 is a sectional view taken along line a-a of fig. 3.

Fig. 7 is an enlarged perspective view of the front end portion of the guide rail shown in fig. 3.

Fig. 8 is a schematic view illustrating a positional relationship between a guide groove and a guided pin of the guide rail shown in fig. 3.

Fig. 9 is an enlarged perspective view of a rear end portion of the guide rail shown in fig. 3.

Description of the reference numerals

20 conveying device

21 clamping apparatus

21gp guided pin

22 clip holder

22af front wall

23 guide rail

23b rail urging member

23g guide groove

23gv bend

Rear end face of 23rw rail

24 retainer stopper

24d holder pressing part

24f position restricting part

24fd concave part

24fe tip face

24m adjusting screw part

25 orbit stopper

28 drive device

C1 zipper long chain

FL conveying direction

T zipper belt

Detailed Description

Hereinafter, an embodiment of a slide fastener stringer conveying apparatus (hereinafter, also simply referred to as "conveying apparatus") according to the present invention will be described with reference to fig. 1 to 9. In the following description, the observation direction of the drawings is a direction toward the observation along the reference numeral, and the left-right direction is left-right when viewed in the conveying direction (FL direction) of the fastener chain, the forward or forward direction is a downstream direction of the conveying direction of the fastener chain, and the backward or backward direction is an upstream direction of the conveying direction of the fastener chain. The left-right direction with respect to the fastener conveying direction is also referred to as a width direction. The left-right direction of the conveying device coincides with the left-right direction with respect to the conveying direction of the fastener chain, and this left-right direction is also referred to as a width direction.

Before describing the fastener chain conveying apparatus 20 of the present embodiment, a fastener SF shown in fig. 1 and a fastener chain C1 shown in fig. 2 will be described.

As shown in fig. 1, the slide fastener SF includes: a pair of right and left fastener tapes T; a pair of left and right fastener element rows E provided on the opposing tape side edge portions of the pair of left and right fastener tapes T, respectively; a slider S for engaging and disengaging the left and right fastener element rows E; a pair of left and right upper stoppers P1 disposed on one end sides (upper end sides in the figure) of the pair of left and right fastener element rows E; and a lower stop portion P2 disposed on the other end side (lower end side in the figure) of the pair of right and left fastener element rows E. Here, the upper stopper portion P1 is formed of a substantially U-shaped metal member, and this upper stopper portion P1 is attached to the fastener tape T by caulking in a manufacturing process to be described later.

The fastener element row E shown in fig. 1 is a metal fastener element row. The fastener element row E is not limited to the present embodiment, and may be a fastener element row formed by injection molding of a synthetic resin or a coil-shaped fastener element row. The lower stopper P2 may be an opening member including a seat bar, a socket, and a plunger.

The fastener chain C1 shown in fig. 2 is a semi-finished product before manufacturing the fastener SF shown in fig. 1, and is a long belt-shaped member to which a plurality of lower stoppers P2 are attached at predetermined intervals in a state where fastener element rows E provided on a pair of right and left fastener tapes T are engaged with each other. Fig. 2 also shows a planar positional relationship when the slider S and the upper stopper P1 are attached to the fastener stringer C1, and also shows a state where the front side of the fastener tape T is opened in a Y shape.

As shown in fig. 3, the fastener chain conveying apparatus 20 has a conveying line L for moving a long fastener chain C1 supplied from an upstream side (left side in the drawing) in a conveying direction FL on a table 1. Various components described below are provided along the transport line L.

In fig. 3, a plate-like long chain guide 6 is provided substantially at the center of the conveying device 20, and the long chain guide 6 has a long chain guide groove 6g along the conveying line L of the fastener long chain C1 and supports the fastener long chain C1. A pair of left and right guide rails 23 are provided on both left and right sides of the fastener chain guide 6 along the conveying direction FL of the fastener chain C1.

The guide grooves 23g are formed in the pair of left and right guide rails 23, and the guide grooves 23g are formed along the conveying direction FL and have curved portions 23gv (see fig. 5) inclined outward in the width direction of the fastener chain C1 as they proceed in the conveying direction FL. Further, the pair of left and right guide rails 23 are provided with jig holders 22 supported slidably in the conveying direction FL.

The clip holder 22 holds the clip 21 holding the fastener chain C1 movably in the width direction of the rail 23 as discussed later. The jig holder 22 has a jig support portion 21g on the inner side thereof, and is provided with a guided pin 21gp (see fig. 6) which is integrally provided with the jig support portion 21g holding the jig 21, protrudes downward, engages with the guide groove 23g, and is guided by the guide groove 23 g. The clip 21 is provided integrally with the clip holder 22, and the clip holder 22 moves on the guide rail 23 along the conveying direction FL of the fastener chain C1. Thereby, the jig 21 and the jig holder 22 run straight on the guide rail 23 together, and the jig 21 can move in the width direction of the guide rail 23 relative to the jig holder 22.

Further, a holder stopper 24, which will be described later, that restricts the movement of the jig holder 22 to the front side is provided on the guide rail 23. The holder stopper 24 is capable of stopping the movement of the jig holder 22 in the conveying direction FL with respect to the guide rail 23 and adjusting the stop position, as will be discussed later.

The driving device 28 for driving the jig holder 22 in the front-rear direction will be described with reference to fig. 4 and 5. As shown in fig. 4 and 5, the driving device 28 includes: a pair of right and left connecting shafts 28f connected to the jig holder 22 and extending in the front-rear direction below the guide rail 23; a coupling support portion 28a that couples rear end portions of the left and right coupling shafts 28 f; a support trunk portion 28b extending downward from the lower surface side of the connection support portion 28 a; a support roller 28r pivotally supported by the support body 28b and rolling on the upper surface 1s of the stand; and a drive shaft 28c that transmits the driving force of a drive source, not shown, provided in the gantry 1 to the support trunk 28 b. Then, the pair of right and left coupling shafts 28f are moved forward and backward by the forward and backward driving of the driving shaft 28c, and the jig holder 22 on the guide rail 23 is reciprocated in the forward and backward direction.

The forward movement of the jig holder 22 is stopped by the abutment of the support trunk 28b against the drive unit stopper 27. The front-rear adjustment of the stop position can be performed by adjusting the front-rear position of the tip of the drive unit stopper 27. Further, a buffer portion 27d is provided adjacent to the drive portion stopper 27. The buffer portion 27d reduces the impact when the driving portion stopper 27 collides with the support body portion 28 b.

The configuration of the jig holder 22 is explained with reference to fig. 6. In fig. 6, the clip tip end portion 21f is shown in a closed state with respect to the clip holder 22 on the right side in the figure, and the clip tip end portion 21f is shown in an open state with respect to the clip holder 22 on the left side in the figure.

In fig. 6, the jig holder 22 is slidably attached to the guide rail 23 having a rectangular cross section such that the body trunk portion 22a surrounds the upper, lower, left, and right side surfaces of the guide rail 23. The clamp holder 22 is coupled to a coupling shaft 28f (see fig. 4) of the driving device 28 at a lower portion of the body trunk portion 22a, and is slidable in the front-rear direction along the conveying direction FL of the fastener chain C1 as described above.

As shown in fig. 6, the clip 21 has a tweezers-type structure in which a pair of upper and lower clip pieces 21u and 21d are simultaneously swung to grip the fastener tape T on the tip side, and is held by a clip support portion 21g inside the clip holder 22. Specifically, the jig support portion 21g is, for example, a concave holding member that is slidably inserted into the main body trunk portion 22a in the device width direction. The pair of upper and lower clip pieces 21u and 21d are pivotally supported by the jig support portion 21g by a pair of upper and lower swing fulcrum pins 21pp so that the pair of upper and lower clip pieces 21u and 21d can swing in the vertical direction. Further, a guided pin 21gp is provided at the bottom of the jig support portion 21g, and the guided pin 21gp includes a pin bush (roller) that engages with a guide groove 23g formed on the upper surface of the guide rail 23. Therefore, when the clip holder 22 advances and retreats along the guide rail 23, the left and right clips 21 can be moved simultaneously toward the fastener tape outer side and inner side (the arrow E1 direction in fig. 6) together with the clip supporting portions 21g inside the clip holder 22. The clip 21 held by the clip holder 22 is guided by the guided pin 21gp that engages with the guide groove 23g to move forward and backward and in the width direction with respect to the guide groove 23 g.

Further, the clip 21 has a spring 21sp inserted between a neck portion on the clip distal end portion 21f side (on the fastener tape T side with respect to the swing fulcrum pin 21 pp), and the pair of upper and lower clip pieces 21u and 21d are constantly biased in the opening direction by the spring 21 sp. On the other hand, at the jig rear end portion 21r, two inner and outer spherical recessed portions 21ic, 21uc for accommodating the steel ball 21b are formed in a row. Further, the structure is as follows: when the steel ball 21b moves to the inner spherical surface recessed portion 21ic by a later-described gripper opening/closing mechanism, the gripper tip portion 21f is closed, and conversely, when the steel ball 21b moves to the outer spherical surface recessed portion 21uc, the gripper tip portion 21f is opened.

The swing lever 5 is a jig opening/closing member, and is pivotally supported by a lever support portion 5b fixed to the table 1 via a lever support pin 5p so as to be able to swing. The lower end portion 5d of the swing lever 5 is elastically contacted (in the figure, contacted via a screw member) with a horizontal slide lever 5f via a torsion spring 5s, wherein the horizontal slide lever 5f is interlocked with an unillustrated operating cam provided at the center side of the table frame 1, and a kick plate 5u capable of being contacted with the steel ball 21b in the jig 21 is provided at the upper end portion of the swing lever 5. Therefore, when the horizontal slide lever 5f slides to the left-right direction outer side (arrow E2 direction on the right side in fig. 6), the swing lever 5 swings counterclockwise in the figure, and the kick plate 5u protrudes between the clip pieces 21u, 21 d. Thereby, the steel ball 21b moves from the outer spherical recessed portion 21uc to the inner spherical recessed portion 21ic, and as a result, the gripper tip portion 21f is closed (the right state in fig. 6).

The flare lever 21c is a member for separating the clip tip portion 21f of the clip 21. The expanding lever 21c is a plate-shaped lever supported by the rear portion of the jig holder 22 so as to be horizontally swingable left and right by a vertical pin 22p, and is bent into a substantially japanese "し" shape (substantially L-shaped) in plan view, and a lever rear end portion 21cr protrudes outward from the main body trunk portion 22a (see fig. 5). The tip 21cf (see fig. 5) of the expanding rod 21c projects between the clamping pieces 21u and 21d, and has a wedge-shaped cross section (see fig. 6). Therefore, when the clip holder 22 moves to a predetermined position on the front end side of the guide rail 23, the lever rear end portion 21cr of the swing lever 5 engages with the kick plate 5u, and the ball 21b moves toward the outer spherical recessed portion 21uc, so that the clip tip end portion 21f separates (left side state in fig. 6).

The guide rails 23 are rail members having a rectangular cross-section as described above, which are inserted through the front support base 2 and the rear support base 3 of the gantry 1, are supported by the front support base 2 and the rear support base 3 so as to be movable in the front-rear direction (see fig. 3 and 4), and are disposed on both right and left sides of the line L along the line L of the fastener chain C1. As described above, the guide rail 23 has the guide groove 23g for guiding the guided pin 21gp of the clip holder 22. As shown in fig. 5, the guide groove 23g includes: a linear portion 23gs formed along the longitudinal direction of the guide rail 23; and a curved portion 23gv continuous with the front side (conveyance downstream side) of the linear portion 23gs and inclined outward in the width direction of the fastener tape T. That is, the bent portions 23gv of the pair of left and right guide grooves 23g are formed so that the guide groove interval gradually becomes wider as it goes to the conveyance downstream side.

As shown in fig. 7, the front end portion 23f of the guide rail 23 is supported by the front support base 2 so as to be slidable in the front-rear direction. This support structure supports, for example, as follows: a predetermined rectangular cutout is formed at the upper end of the front support base 2, the front end portion 23f is fitted into the rectangular cutout, and the position is regulated by the presser pieces 2u so as to press both the left and right sides of the upper surface of the front end portion 23 f. The mounting is performed such that the block-shaped mounting wall 23fw supporting the retainer stopper 24 is positioned between the left and right press blocks 2 u.

The holder stopper 24 includes a position regulating portion 24f facing the front wall 22af (see fig. 4) on the downstream side in the conveying direction of the jig holder 22, and an adjustment screw portion 24m supporting the position regulating portion 24 f. That is, the adjustment screw portion 24m is screwed to the mounting wall 23fw so as to penetrate the mounting wall 23fw along the conveyance direction FL, and a position regulating portion 24f is provided on the tip end side (upstream side in the conveyance direction) of the adjustment screw portion 24 m.

Therefore, when the screw rear end portion 24R of the adjustment screw portion 24m is rotated in, for example, the dextrorotation direction (the direction of the arrow R1), the position regulating portion 24f moves in a direction (the direction of the arrow X1) approaching the front wall 22 af. Conversely, when the screw rear end portion 24R of the adjustment screw portion 24m is rotated in the leftward direction (the direction of the arrow R2), the position regulating portion 24f moves in the direction (the direction of the arrow X2) to retreat from the front wall 22 af. Thereby, the stop position of the jig holder 22 with respect to the guide rail 23 can be adjusted. The holder stopper 24 is provided on each of the left and right guide rails 23, and can be adjusted independently from side to side.

Further, the position regulating portion 24f is provided with a holder pressing portion 24d that protrudes toward the jig holder 22 side from the distal end surface 24fe of the position regulating portion 24 f. The holder pressing portion 24d has a structure capable of elastically pressing the front wall 22af of the jig holder 22 toward the upstream side in the conveying direction. That is, the position regulating portion 24f is configured as a cylindrical body having an opening on the distal end surface 24fe side, a compression spring 24ds is provided inside the cylindrical body, and the holder pressing portion 24d is elastically supported by the compression spring 24 ds. Therefore, when the front surface wall 22af of the jig holder 22 comes into contact with the distal end surface 24fe of the position regulating portion 24f, the front surface wall abuts against the front surface wall while being buffered by the elastic force of the holder pressing portion 24 d.

Next, the adjustment of the stop position by the adjustment screw portion 24m of the holder stopper 24 will be described with reference to fig. 8. Further, fig. 8 schematically illustrates a positional relationship between one side (right side) of the guide groove 23g and the guided pin 21 gp.

As described above, the front wall 22af of the jig holder 22 abuts on the holder stopper 24 to determine the positioning between the guide groove 23g and the guided pin 21gp, and the relative position between the guide rail 23 and the jig holder 22 is determined. The jig holder 22 is stopped after the guided pin 21gp enters the curved portion 23gv from the linear portion 23 gs. That is, as shown in fig. 8, the guided pin 21gp moves from the straight portion position Po1 to the left and right outer sides (in the direction of arrow Y0) and stops at the predetermined position (optimum position Po 3). As a result, the left and right clips 21 move outward in the width direction, respectively, and the left and right spaces are spread apart, so that the tip portions of the fastener stringers C1 are opened in a Y-shape (see fig. 2).

Here, the position adjustment is performed in advance when the size of the fastener chain C1 is changed, before the line is operated or when the manufacturing lot of the fastener chain C1 is changed.

For this adjustment, for example, when the Y-open state of the distal end portion of the fastener chain C1 is too small, the stop position of the guided pin 21gp is located at the rear position Po2 rearward (upstream side in the conveying direction) of the optimum position Po 3. At this time, the adjustment screw portion 24m is rotated to move the position regulating portion 24f forward (in the direction of arrow X2 in fig. 7). Thereby, the stop position of the guided pin 21gp is moved by the predetermined amount y1 to be adjusted to the optimum position Po 3.

On the other hand, when the Y-open configuration of the tip portion of the fastener chain C1 is excessively large, the stop position of the guided pin 21gp is located at the front position Po4 ahead (downstream side in the conveying direction) of the optimum position Po 3. At this time, the adjustment screw portion 24m is reversed to move the position regulating portion 24f rearward (in the direction of arrow X1 in fig. 7). Thereby, the stop position of the guided pin 21gp is moved by the predetermined amount y2 to be adjusted to the optimum position Po 3.

As shown in fig. 9, the rail rear end portion 23r of the guide rail 23 is supported by the rear support base 3 so as to be slidable in the front-rear direction. In this support structure, for example, the rail rear end portion 23r is fitted into a rectangular cutout portion of the rear support base 3, and the rail rear end portion 23r is slidably supported while being restricted in position by the upper presser 3 u. Further, a support wall 4 having an L-shape in side view is provided on the briquette 3u, and the support wall 4 is composed of an upper wall 4a extending toward the upstream side in the conveying direction so as to cover the upper side of the rail rear end portion 23r of the guide rail 23, and a rear wall 4b extending downward from the upper wall 4 a.

Further, a hook portion 23m extending outward in the horizontal direction is provided at a rail rear end portion 23r of the guide rail 23, and a rail biasing member 23b as a tension spring is provided between the hook portion 23m and a hook pin 1p protruding from the gantry upper surface 1 s. The rail 23 is always elastically biased toward the rear wall 4b side (upstream side in the conveying direction) of the support wall 4 by the rail biasing member 23 b.

Further, a rail stopper 25 is provided on the rear wall 4b of the support wall 4, and the rail stopper 25 is in contact with the rail rear end surface 23rw of the guide rail 23 and is screwed to the rear wall 4b of the support wall 4 so as to be movable in the front-rear direction. Therefore, the front-rear position of the guide rail 23 can be adjusted by rotating the track stopper 25. By moving the guide rail 23 in the front-rear direction by the rail stopper 25, the position of the guide rail 23 is moved forward and backward with respect to the jig holder 22. Thereby, the relative position in the front-rear direction between the guide groove 23g and the guided pin 21gp can be changed. This changes the positional relationship between the guided pin 21gp and the entrance position Vp (refer to fig. 8) of the curved portion 23 gv. Therefore, the timing at which the clip holder 22 moves forward, the front end portion of the fastener tape T is inserted into the slider S, and the fastener tape T is opened into the Y-open state can be adjusted by the rail stopper 25.

As shown in fig. 4, the slide fastener assembling apparatus 10 includes: a component mounting device 30 for mounting the slider S and the upper stopper P1 on the long chain C1 conveyed by the conveyor device 20; a slider feeding device 50 for feeding a slider S to the component mounting device 30; a part supplying device 60 that supplies the upper part P1 to the component mounting device 30; a 2 nd transfer device 70 that transfers the fastener chain C1 to which the slider S and the top stop P1 are attached and the cut fastener chain C1 (slide fastener SF); and a cutting device 80 for cutting the zipper chain C1. In fig. 4, in order to facilitate understanding of the drawing, the pressing mechanism of the fastener chain C1 disposed above the chain guide 6 of the conveying device 20 is omitted, and devices other than the conveying device 20 are simply described.

As shown in fig. 4, the component mounting apparatus 30 includes: the component holder 31; a slider support portion 41 which is disposed below the transfer line L and supports the slider S held by the component holder 31 from below; and a caulking portion 42 disposed below the conveyor line L and caulking the upper stopper portion P1 held by the component holder 31.

The component holder 31 includes a slider holder 33 for holding the slider S and a stopper holder 34 for holding a pair of right and left upper stoppers P1 at the lower end thereof. The component holder 31 is configured to be capable of rotating about the rotation shaft 32a between a position at which the slider S and the left and right upper stoppers P1 are supplied from the slider supplying device 50 and the stopper supplying device 60, and a component mounting position.

The 2 nd conveying device 70 appropriately transfers the fastener chain C1 between the 2 nd conveying device 70 and the conveying device 20, and discharges the fastener SF cut by the cutting device 80 and having the slider S and the upper stop P1 attached thereto from the fastener assembling device 10.

Next, the operation of the conveying device 20 and the slide fastener assembling device 10 will be described.

As shown in fig. 4, at a position in front of the cutting device 80, the component holder 31, which holds the slider S and the pair of right and left top stoppers P1 in a Y shape (see fig. 2) in advance, and the component mounting device 30, which has the slider support portion 41 and the caulking portion 42, are caused to stand by on the movement line L of the fastener chain C1 for a certain fixed time. Then, by the cooperation of the conveying device 20 and the 2 nd conveying device 70, which will be discussed later, the fastener chain C1 is passed over the transfer line L, and the cutting of the fastener chain C1, the attachment of the slider S and the top stop P1, and the discharge of the completed slide fastener SF are performed successively in the order described below.

First, when the cutting of the front fastener stringer C1 is completed and the cutter of the cutting device 80 starts to move in both the vertical direction, the clip holder 22 starts to move forward on the guide rail 23 by being pressed by the coupling shaft 28f of the driving device 28. By this movement, the left and right jigs 21 are guided by the straight portions 23gs of the left and right guide grooves 23g to move straight. When the rear end portion 21r of the clip 21 moves to a position facing the kick plate 5u of the swing lever 5, the swing lever 5 swings in conjunction with the operation of a cam, not shown. By this swing, the kick plate 5u protrudes between the upper and lower clip pieces 21u, 21d, and the steel ball 21b is press-fitted from the outer spherical recessed portion 21uc to the inner spherical recessed portion 21 ic. By pressing the steel ball 21b, the gripper tip end portion 21f is closed and the fastener tape T is gripped from both front and back surfaces.

During this period, the 2 nd conveying device 70 having the pawl 70n at the tip end portion guides the advancing slide fastener SF to the outside of the slide fastener assembling device 10, and after the slide fastener SF is properly dropped to the discharge portion, the reverse direction is returned again, and the state in which the pawl 70n at the tip end portion is opened is waited for until a predetermined timing.

While the 2 nd conveying device 70 is moving forward, the component holder 31 loaded with the slider S and the pair of upper stoppers P1 by the slider feeding device 50 and the stopper feeding device 60 and standing by on the upper side is rotated and lowered. Further, at a position facing the component holder 31, the slider support portion 41 and the caulking portion 42 move upward from below. Thus, the slider S and the pair of upper stoppers P1 are held in the Y-shape arrangement at the component attachment position (the movement line L of the fastener chain C1) (see fig. 2).

Then, by the continued advance of the jig holder 22, the guided pin 21gp enters the curved portion 23gv of the guide groove 23 g. Thus, the left and right clips 21 pass the fastener chain C1 through the lower end portion of the component holder 31 as shown in fig. 2 while expanding the fastener chain C1 to the left and right outside (in the direction of arrow Y0 in fig. 2) into the Y-open state (Y-shape).

In this passage, first, the tip end portion Ef of the element row E is inserted into the slider S (see fig. 2). Next, the jig holder 22 abuts the holder stopper 24. Due to this contact, the advance of the jig holder 22 with respect to the guide rail 23 is stopped (relative movement stopped state). In the relative movement stopped state, the jig holder 22 advances together with the guide rail 23. That is, the fastener tape T is slightly advanced forward in the Y-open state by the left and right grippers 21. By this advance, the front end edge Tfe of the fastener tape T is inserted into the upper stopper P1 in the shape of japanese "コ". The forward movement is stopped by the driving device 28 simultaneously with the insertion of the front end edge Tfe of the fastener tape T into the upward stopper portion P1. Thereafter, the caulking portion 42 presses the upper stopper portion P1 from below, and the upper stopper portion P1 is caulked and fixed to the fastener tape T.

When the attachment of the slider S and the top stopper P1 is completed, the front end edge Tfe of the fastener chain C1 is gripped by the 2 nd conveying device 70 substantially simultaneously. Immediately before the 2 nd transport device 70 grips the leading edge Tfe, the flaring rod 21c of the clip holder 22 engages with the kick plate 5u, and the steel ball 21b in the clip 21 moves to the spherical recessed portion 21uc on the outer side to separate the clip leading end portion 21 f. As a result, the grip of the fastener chain C1 by the gripper 21 is released. The gripping change operation of the fastener chain C1 can be performed substantially simultaneously in a very small time.

When the attachment of the slider S and the top stop portion P1 and the gripping change of the fastener chain C1 are completed by the above-described operations, the clip 21 starts to retreat toward the initial position in a state where the clip distal end portion 21f is opened, and the operation portions of the transport device 20 are returned to the original positions by a process completely opposite to the above-described operations in conjunction with the retreat of the clip distal end portion 21 f.

As described above, according to the present embodiment, since the movement of the clip holder 22 holding the clip 21 gripping the fastener tape T with respect to the guide rail 23 is stopped by the holder stopper 24, and the holder stopper 24 is configured to be able to adjust the stop position of the clip holder 22, the engagement position of the guided pin 21gp provided integrally with the clip 21 with respect to the guide groove 23 can be adjusted, and the opening interval of the left and right clips 21 when the guided pin 21gp is stopped at the curved portion 23gv of the guide groove 23g can be adjusted. As a result, the feeding position accuracy of the fastener tape T can be improved with respect to the attachment position of the slider S and the upper stop portion P1. Therefore, it is possible to provide the highly versatile conveying apparatus 20 capable of easily and surely coping with dimensional errors and dimensional changes of the components due to different manufacturing lots of the components, and contributing to improvement of productivity.

Further, according to the present embodiment, since the holder stopper 24 is provided on each of the left and right guide rails 23, the opening state of each of the left and right jigs 21 can be adjusted, and thus finer adjustment can be performed.

Further, according to the present embodiment, the holder stopper 24 is attached to the front end portion 23f of the guide rail 23, and includes the position regulating portion 24f that abuts against the front surface wall 22af on the advancing direction side of the jig holder 22, and the adjusting screw portion 24m that can advance and retreat the position of the position regulating portion 24f in the conveying direction FL, and therefore, the movement stop position of the jig holder 22 with respect to the guide rail 23 can be easily adjusted simply by rotating the adjusting screw portion 24 m.

Further, according to the present embodiment, since the holder stopper 24 includes the holder pressing portion 24d, and the holder pressing portion 24d is disposed so as to protrude toward the holder 22 side from the distal end surface 24fe of the position regulating portion 24f, and can elastically press the front surface wall 22af of the holder 22 against the conveyance direction FL, the holder 22 elastically contacts the holder pressing portion 24d before contacting the distal end surface 24fe of the position regulating portion 24f when contacting the holder stopper 24, and the impact when the holder stopper 24 contacts the holder 22 can be buffered. As a result, the jig holder 22 can be smoothly positioned with respect to the guide rail 23.

Further, according to the present embodiment, since the position regulating portion 24f has the recess 24fd having the opening on the distal end surface 24fe and the holder pressing portion 24d is built in the recess 24fd, it is possible to perform buffering and position adjustment when the jig holder 22 abuts against the guide rail 23 by one member. Further, the holder stopper 24 is integrally formed as a single member, and therefore can be formed compactly, and can be easily provided even in a narrow width portion such as the guide rail 23.

Further, according to the present embodiment, since the rail biasing member 23b that elastically biases the guide rail 23 to the upstream side in the conveying direction FL is provided and the rail stopper 25 that abuts against the rail rear end surface 23rw of the guide rail 23 and is capable of adjusting the front-rear position of the guide rail 23 in the conveying direction FL is provided on the upstream side in the conveying direction FL with respect to the guide rail 23, the guide rail 23 is always pressed by the rail stopper 25, and therefore, the relative position between the jig holder 22 and the guide rail 23 in the conveying direction FL can be easily adjusted simply by rotating the rail stopper 25. As a result, the position Vp at which the curved portion 23gv of the guide groove 23g starts in the conveyance direction FL can be changed back and forth, and therefore the timing at which the guided pin 21gp guided by the guide groove 23g opens, that is, the timing at which the adjustment jig 21 opens to the left and right can be adjusted.

Further, according to the present embodiment, since the track stopper 25 is provided on each of the left and right sides of the left and right guide rails 23, the timing at which the left and right clamps 21 are opened can be adjusted.

While one embodiment of the present invention has been described above, the present invention is not limited thereto, and can be modified as appropriate.

For example, in the above embodiment, the holder stopper 24 is configured to incorporate the holder pressing portion 24d into the position regulating portion 24f, but may be configured to dispose the position regulating portion 24f and the holder pressing portion 24d in parallel.

Claims

1. A fastener stringer conveying device (20) for gripping a pair of right and left fastener tapes (T) of a fastener stringer (C1) by right and left grippers (21) and conveying the fastener stringer (C1) to a predetermined position, the device comprising:

a pair of left and right guide rails (23) arranged in parallel along the conveying direction (FL) of the zipper long chain (C1);

a guide groove (23g) formed along the guide rail (23) and having a curved portion (23gv) that is inclined outward in the width direction of the long fastener chain (C1) as the guide groove advances in the conveying direction (FL) of the long fastener chain (C1);

a pair of left and right jig holders (22) that are supported so as to be slidable along the guide rail (23) and that hold the jig (21) so that the jig (21) can move in the width direction of the guide rail (23);

a guided pin (21gp) that advances and retreats and moves in the width direction the clip (21) held by the clip holder (22) along the guide groove (23 g); and

a holder stopper (24) that stops movement of the jig holder (22) relative to the guide rail (23) in the conveying direction (FL), can adjust a stop position, and determines an engagement position of the guided pin (21gp) and the curved portion (23gv),

the pair of left and right clip holders (22) move in the front-rear direction on the pair of left and right guide rails (23) along the conveying direction (FL) of the fastener chain (C1).

2. The zipper chain conveyor (20) according to claim 1,

the retainer stopper (24) is provided on the left and right guide rails (23), respectively.

3. Zipper chain transfer device (20) according to claim 1 or 2,

the holder stopper (24) is mounted on a front end portion (23f) of the guide rail (23),

the holder stopper (24) has: a position limiting part (24f) which is abutted with a front surface wall (22af) on the advancing direction side of the clamp holding piece (22); and an adjusting screw section (24m) capable of advancing and retreating the position of the position regulating section (24f) in the conveying direction (FL).

4. The zipper chain conveyor (20) according to claim 3,

the holder stopper (24) has a holder pressing portion (24d) which is disposed so as to protrude toward the jig holder (22) side from the distal end surface (24fe) of the position regulating portion (24f), and which is capable of elastically pressing the front surface wall (22af) against the conveying direction (FL).

5. The zipper chain conveyor (20) according to claim 4,

the position regulating section (24f) has a recess (24fd) that is open on the distal end surface (24fe),

the holder pressing part (24d) is built in the recess part (24 fd).

6. Zipper chain transfer device (20) according to claim 1 or 2,

a track biasing member (23b) for elastically biasing the guide rail (23) to the upstream side in the conveying direction (FL),

a rail stopper (25) which abuts against a rail rear end surface (23rw) of the guide rail (23) and can adjust the front-rear position of the guide rail (23) is provided on the upstream side of the guide rail (23) in the conveying direction (FL).

7. The zipper chain conveyor (20) according to claim 6,

the track stopper (25) is provided for each of the left and right guide rails (23).