CN113940488A - Method and mechanism for assembling zipper chain - Google Patents

Abstract

The invention provides a method for combining a zipper chain capable of reducing the manufacturing cost of a zipper, which comprises the following steps: a step A of detecting a slider on the 2 nd fastener stringer while the fastener stringer is moving downstream in the conveying direction; a step B of switching the movement of the fastener chain from downstream to upstream in the conveying direction based on the detection of the slider; a step C of stopping the slider at a predetermined combination position on the 2 nd fastener stringer; a step D of bringing the socket body of the base bar of the 2 nd fastener stringer into contact with the slider at the assembly position; a step E of guiding the insert pin to a position facing the shoulder opening on the non-one-side threading side of the slider at the combination position by pulling the 1 st fastener stringer closer from the upstream side of the combination position; and a step (F) of switching the movement of the fastener chain from the upstream to the downstream in the conveying direction, inserting the insert pin into the shoulder opening on the non-one-side through side of the slider at the combining position, and combining the insert pin with the socket body of the box pin.

Description

Method and mechanism for assembling zipper chain

Technical Field

The present invention relates to a method and a mechanism for assembling fastener chains, and more particularly, to a method and a mechanism for assembling opening members in a continuous fastener chain in a manufacturing process of a slide fastener.

Background

When a slide fastener having a synthetic resin fastener element (element) row is continuously mass-produced in a continuous fastener chain, the following processing steps are generally performed in sequence. A step of forming a fastener chain by injection molding a synthetic resin element row at each of opposite edge portions of a pair of left and right long fastener tapes; a step of partially removing the element row at predetermined intervals in the longitudinal direction of the fastener chain to form a spacer; a step of bonding a reinforcing film to a region of the fastener chain that sandwiches a part of the spacer; forming a perforated portion by perforating a part of the reinforcing film; a step of injection molding an open member; a step of assembling the opening member; cutting the fastener chain along the width direction at a portion corresponding to the perforated portion; a step of inserting a slider into the cut slide fastener unit; and a step of injection molding the upper stop portion.

A process of combining the openers is disclosed in, for example, international publication No. 2015/107621 (patent document 1). In patent document 1, the vicinity of the opener of the left and right fastener stringers is held by the left and right jigs, and the opener is combined while moving each jig to the upstream side and the downstream side in the conveying direction or to the inside and the outside in the width direction.

However, the left and right clamps or the mechanism for moving the clamps are very expensive, which increases the manufacturing cost of the slide fastener.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2015/107621

Disclosure of Invention

The present invention has been made in view of the above problems, and an object thereof is to provide a method and a mechanism for assembling a fastener chain, which can reduce the manufacturing cost of a fastener.

In order to solve the above-mentioned problems, according to an aspect of the present invention, there is provided a method of assembling a fastener chain, comprising: a step a of detecting the slider on the 2 nd fastener stringer while moving a fastener chain including the 1 st fastener stringer formed with an insert pin and the 2 nd fastener stringer formed with a socket body formed with a box pin in a downstream direction in a conveying direction in an open state where the engagement between the fastener element rows is released and the 2 nd fastener stringer having a slider inserted through one side; a step B of switching the movement of the fastener chain from downstream to upstream in the conveying direction when the slider is detected; a step C of stopping the slider at a predetermined combination position on the 2 nd fastener stringer in the fastener chain in the process of moving to the upstream side in the conveying direction; a step D of bringing a socket body of the base bar of the 2 nd fastener stringer in the fastener chain moving to the upstream side in the conveying direction into contact with the slider at the combination position; a step E of guiding the insert pin to a position facing a shoulder opening on a non-one-side threading side of the slider at the combining position by pulling up the 1 st fastener stringer from an upstream side of the combining position; and a step F of changing the movement of the fastener chain from an upstream to a downstream in the conveying direction, inserting the insert pin into the one shoulder opening of the slider at the combining position, and combining the insert pin with the receptacle body of the box pin.

In the present invention, the slider on the 2 nd fastener stringer in the fastener stringer moving to the downstream side in the conveying direction in the open state where the engagement between the fastener element rows is released is detected (step a), and the movement of the fastener chain is switched from the downstream side to the upstream side in the conveying direction (step B), whereby the slider on the 2 nd fastener stringer in the fastener chain moving to the upstream side is stopped at a predetermined combination position (step C). After stopping the slider at the assembly position, the movement of the fastener chain to the upstream side is restarted or continued, whereby the receptacle body of the base bar of the 2 nd fastener stringer is brought into contact with the slider stopped at the assembly position (step D). The slider is previously inserted one side into the 2 nd fastener stringer so that the pair of shoulder openings face the upstream side and the rear opening faces the downstream side. Therefore, in step D, the box pin of the socket body with the box pin is inserted into the slider from the rear opening of the slider. In the step D, the socket body of the box pin is brought into contact with the slider in the stopped state at the assembly position, and the socket body of the box pin is stopped in a state of being coupled to the slider, and accordingly, the upstream side of the 2 nd fastener stringer is also stopped. Next, the 1 st fastener stringer is pulled up from the upstream side of the combining position. Due to this pulling-up, in step G described later, a slack can be generated on the downstream side of the combination position in the 1 st fastener stringer, or the conveying path of the 1 st fastener stringer can be made longer than the conveying path of the 2 nd fastener stringer on the upstream side of the combination position. By the drawing-up of the 1 st fastener stringer, the insert pin of the 1 st fastener stringer is guided to a position facing the shoulder opening on the non-one-side through side of the slider stopped at the combination position on the upstream side (step E). Here, the "shoulder opening on the non-one-side through side of the slider" means a side opposite to the side previously inserted into the element row of the 2 nd fastener stringer, out of the pair of shoulder openings of the slider. After the insert pin is guided by the guide member to a position facing the shoulder opening on the non-one-side threading side of the slider, the movement of the fastener chain is switched from the upstream side to the downstream side in the conveying direction, whereby the insert pin of the 1 st fastener stringer is inserted into the shoulder opening on the non-one-side threading side of the slider stopped at the combining position and combined with the socket body of the box pin which has been brought into contact with the slider (step F). As described above, the socket body with the box pin and the insert pin on the fastener chain are combined in the slider.

In one embodiment of the present invention, the fastener stringer further includes a step G of, after the step D, continuing the movement of the fastener chain to the upstream side in the conveying direction to slacken the fastener chain at the downstream side in the conveying direction of the combination position. The base bar of the socket body of the base bar of the 2 nd fastener stringer abuts against the slider at the assembly position and stops, and thereby the insert bar of the 1 st fastener stringer also stops. This is because the 1 st fastener stringer and the 2 nd fastener stringer are conveyed by a common drive roller or the like so that the 1 st fastener stringer and the 2 nd fastener stringer in the opened state are not displaced in the conveying direction. The movement of the fastener chain to the upstream side is continued after the socket body with the seat bar and the insert bar are stopped, and thereby slack is generated in the fastener chain on the downstream side of the combination position. In accordance with the slackened portion, the 1 st fastener stringer can be pulled toward the upstream side of the coupling position in the step E. When the insert pin is inserted into the socket body of the slider and the box pin in the step F, the socket body of the box pin of the 2 nd fastener stringer is maintained in a state of abutting against the slider and being stopped until the slack of the 2 nd fastener stringer generated together with the 1 st fastener stringer in the step G is eliminated. The amount of slack is set so that the combination of the insert pin and the socket body with the box pin is completed while the slack of the 2 nd slide fastener is eliminated.

In an embodiment of the present invention, in order to pull up the 1 st fastener stringer in the step E, a conveying length of the conveying path of the 1 st fastener stringer may be made longer than a conveying length of the conveying path of the 2 nd fastener stringer on an upstream side of the combining position. In this case, the 1 st fastener stringer can be pulled up in step E without generating a slack in the 1 st fastener.

In one embodiment of the present invention, in the step D, at least a part of the insert pin of the 1 st fastener stringer is placed on the slider located at the coupling position. In this mode, in the step D of bringing the socket body of the base rod of the 2 nd fastener stringer into contact with the slider stopped at the combining position, when the 1 st and 2 nd fastener stringers in which the pair of element rows are opened are moved to the upstream side in the conveying direction, the respective element rows are moved so as to be close to or in contact with each other in the vicinity of at least the socket bodies of the insert rod and the base rod of the 1 st and 2 nd fastener stringers. Thereby, the socket portion of the socket of the base bar of the 2 nd fastener stringer protrudes toward the 1 st fastener stringer in the width direction, and the 1 st and 2 nd fastener stringers move to the upstream side in a state where the insert bar of the 1 st fastener stringer is placed on the protruding socket portion. Thus, when the socket body of the base bar of the 2 nd fastener stringer abuts against the slider stopped at the combination position and the movement of the 2 nd fastener stringer is stopped, the 1 st fastener stringer moving together with the 2 nd fastener stringer is also stopped. At this time, the insert pin of the 1 st fastener stringer is also stopped in a state where at least a part of the insert pin is placed on the slider. Therefore, by pulling up the 1 st fastener stringer on the upstream side in the step F, at least a part of the insert pin placed on the slider is guided to a position facing the shoulder opening on the non-one-side threading side of the slider.

According to another aspect of the present invention, there is provided a combination of fastener chains, comprising: a moving mechanism for moving a fastener chain including a 1 st fastener stringer formed with an insert pin and a 2 nd fastener stringer having a socket body formed with a base pin and having one side penetrating a slider toward a downstream side in a conveying direction and an upstream side in the conveying direction in an open state where engagement between the fastener element rows is released; a control unit for switching the movement of the fastener chain by the moving mechanism from downstream to upstream in the conveying direction and from upstream to downstream in the conveying direction; a sensor for detecting the slider on the 2 nd fastener stringer moving downstream in the conveying direction; a slider stopping mechanism for stopping the slider on the 2 nd fastener stringer moving upstream in the conveying direction at a predetermined combination position; a pressing member for pressing the 1 st fastener stringer on the upstream side of the combining position to pull the 1 st fastener stringer toward the upstream side; and a guide member for guiding the insert pin to a position facing a shoulder opening on a non-one-side through side of the slider at the combination position by the pull-up of the 1 st fastener stringer by the pressing member.

As the moving mechanism in the combined mechanism of the fastener chain according to the present invention, a partial structure of a conveying mechanism in a synthetic resin zipper manufacturing apparatus described later can be used.

In the present invention, the slider on the 2 nd fastener stringer is detected by the sensor while the fastener chain is moved downstream in the conveying direction by the moving mechanism in the open state where the engagement between the element rows is released. Based on the detection, the control unit switches the movement of the fastener chain from downstream to upstream in the conveying direction. Thereby, the slider on the 2 nd fastener stringer moving upstream is stopped at a predetermined combination position by the slider stopping mechanism. After stopping the slider at the assembly position, the receptacle body of the base bar of the 2 nd fastener stringer can be brought into contact with the slider stopped at the assembly position by restarting or continuing the movement of the fastener chain to the upstream side. When the socket body of the box pin is brought into contact with the slider in the stopped state at the assembly position, the socket body of the box pin stops moving in a state of abutting against the slider, and accordingly, the movement of the 2 nd fastener stringer on the upstream side of the assembly position also stops. Then, by continuing the movement of the fastener chain to the upstream side also downstream of the combining position, slack can be generated in the fastener chain on the downstream side of the combining position. Next, the 1 st fastener stringer on the upstream side of the assembly position is pressed by the pressing member, whereby the 1 st fastener stringer can be pulled toward the upstream side of the assembly position. Accordingly, the insert pin of the 1 st fastener stringer is guided by the guide member to a position facing the shoulder opening on the non-one-side threading side of the slider stopped at the combining position on the upstream side. Next, the control unit switches the movement of the fastener chain by the moving mechanism from the upstream to the downstream in the conveying direction, and the insert pin of the 1 st fastener stringer is inserted into the slider from the shoulder opening on the non-one-side through side of the slider stopped at the combining position, and then combined with the socket body of the box pin.

In one embodiment of the present invention, the slider stopping mechanism includes a slider stopper capable of preventing the slider stopped at the predetermined combination position from moving upstream in the conveying direction of the predetermined combination position. The slider stopper prevents the slider from shifting from a predetermined combination position to the upstream side in the conveying direction. Further, the slider can be stopped at a predetermined combination position by the slider stopper itself.

In one embodiment of the present invention, the slider includes a socket stopper for pressing the socket of the seated bar that is in contact with the slider stopped at the predetermined combination position. The receptacle stopper is configured to press the receptacle of the box pin in contact with the slider at the predetermined combination position, thereby preventing the receptacle from being displaced from the slider before the insert pin is combined with the receptacle of the box pin via the slider.

In one embodiment of the present invention, the slider holding member is provided to hold the slider stopped at the predetermined combination position by the slider stopping mechanism. In this case, the socket body of the base rod of the 2 nd fastener stringer and the insert rod of the 1 st fastener stringer are combined with the slider held by the slider holding member.

In one embodiment of the present invention, the combination position includes, upstream in the conveying direction: a 1 st path for conveying the 1 st fastener stringer; and a 2 nd path which is branched from the 1 st path and transports the 2 nd fastener stringer, wherein the pressing member is provided opposite to the 1 st path. By branching the 1 st fastener stringer and the 2 nd fastener stringer at the upstream of the combining position, it is possible to prevent interference between the insert pin (insert pin other than the insert pin in the combination) or the top end portion of the 1 st fastener stringer and the socket body of the tape seat bar (socket body of the tape seat bar other than the socket body of the tape seat bar in the combination) or the top end portion of the 2 nd fastener stringer located at the 2 nd path when the 1 st fastener stringer located at the 1 st path is pressed by the pressing member for the pull-up of the 1 st fastener stringer.

In the present embodiment, the 1 st path and the 2 nd path have the same conveying length. In this case, in order to push the 1 st fastener stringer located on the 1 st path by the pressing member to pull the 1 st fastener stringer toward the upstream side of the combining position, a slack portion can be generated in the 1 st fastener stringer on the downstream side of the combining position. In another embodiment, by setting the conveying length of the 1 st path to be longer than the conveying length of the 2 nd path, the 1 st fastener stringer can be pulled close without generating a slack portion in the 1 st fastener stringer.

In one embodiment of the present invention, the fastener stringer further includes a support member that supports the 1 st fastener stringer with respect to pressing of the 1 st fastener stringer by the pressing member in the 1 st path. In this case, when the pressing member presses the 1 st fastener stringer positioned on the 1 st path, the supporting member supports the 1 st fastener stringer. As the support member, a roller of a moving mechanism or a conveying mechanism can be used.

In one embodiment of the present invention, the fastener stringer further includes a pressing member driving unit that moves the pressing member between an initial position and a pressing position where the pressing member presses the 1 st fastener stringer, and the control unit controls the pressing member via the pressing member driving unit. In this case, the control section switches the direction of movement of the fastener chain by the moving mechanism, and moves the pressing member between the initial position and the pressing position via the pressing member driving section.

In one embodiment of the present invention, the slider stopping mechanism includes a 2 nd sensor for detecting the slider approaching the predetermined combination position, and the control unit stops the conveyance of the 1 st fastener stringer and the 2 nd fastener stringer toward the upstream side in the conveying direction based on the detection of the slider by the 2 nd sensor. In this case, when the 2 nd sensor detects the slider approaching the predetermined combination position, the control unit stops the conveyance of the 1 st fastener stringer and the 2 nd fastener stringer to the upstream side in the conveying direction. This makes it possible to stop the slider at a predetermined stop position.

Effects of the invention

In the present invention, since the socket body of the insert bar of the 1 st fastener stringer and the base bar of the 2 nd fastener stringer can be combined without using an expensive jig or the like, the manufacturing cost of the slide fastener can be reduced.

Drawings

Fig. 1 is an explanatory view schematically showing a synthetic resin slide fastener manufacturing apparatus according to an embodiment of the present invention.

Fig. 2 is a flowchart showing a processing step performed by the synthetic resin slide fastener manufacturing apparatus.

Fig. 3 is a plan view showing a continuous fastener chain taken out.

Fig. 4 is a plan view of the fastener chain in a state where the space portion is formed.

Fig. 5 is a plan view of the fastener chain in a state where the reinforcing film is adhered.

Fig. 6 is a plan view of the fastener chain in a state where the through hole portion is formed.

Fig. 7 is a plan view of the fastener chain in an open state after the slider is inserted in one side.

Fig. 8 is a plan view of the fastener chain in a state where the opener and the upper stopper are injection-molded.

Fig. 9 is a plan view showing a slide fastener chain changed from an open state to a closed state.

Fig. 10 is a plan view showing a lower die of the upper stop and opener injection molding mechanism on the back side of the fastener chain.

Fig. 11 is a schematic sectional view taken along line a-a of fig. 10.

Fig. 12 is a cross-sectional view similar to fig. 11 showing a state where the ejector pin is protruded from the upper stopper portion and the lower die of the opener injection molding mechanism.

Fig. 13 is a plan view showing a state in which the lower mold of the upper stopper and opener injection molding mechanism is moved to the right side of the fastener chain.

Fig. 14 is a plan view showing a slide fastener chain cut out from which a closed state is started by the chain closing mechanism.

Fig. 15 is a plan view of the fastener chain in a state of being conveyed downstream from the state of fig. 14.

Fig. 16 is a plan view of the slide fastener chain in a state where the socket body with the box pin and the insert pin are combined.

Fig. 17 is a plan view showing the completed slide fastener, showing a state in which the slider is pulled down from the top stop portion.

Fig. 18 is a side explanatory view showing a step of combining openers in the fastener chain combining mechanism according to embodiment 1 of the present invention, and shows a timing when the sensor detects the slider on the 2 nd fastener stringer in the process of moving downstream in the conveying direction.

Fig. 19 is a side explanatory view showing a process of combining openers in the fastener chain combining mechanism according to embodiment 1 of the present invention, and shows a timing when the slider on the 2 nd fastener stringer stops at a predetermined combining position.

Fig. 20 is a side explanatory view showing a process of assembling the opener in the fastener chain assembling mechanism according to embodiment 1 of the present invention, and shows a timing when the socket body of the base bar of the 2 nd fastener stringer is coupled to the slider stopped at the assembling position.

Fig. 21 is a side explanatory view showing a process of combining openers in the fastener chain combining mechanism according to embodiment 1 of the present invention, and shows a timing when a slack portion occurs in the 1 st fastener stringer and the 2 nd fastener stringer.

Fig. 22 is a side explanatory view showing a step of combining openers in the fastener chain combining mechanism according to embodiment 1 of the present invention, and shows a timing when the insert pin is guided to a position facing the shoulder opening on the non-one-side threading side of the slider by the pull-up of the 1 st fastener stringer.

Fig. 23 is a side explanatory view showing a process of combining openers in the fastener chain combining mechanism according to embodiment 1 of the present invention, and shows a timing when an insert pin is inserted into a slider and a socket body 20 of a box pin.

Fig. 24 is an enlarged view of circle C of fig. 22.

Fig. 25 is a top explanatory view corresponding to fig. 18.

Fig. 26 is a top explanatory view corresponding to fig. 19.

Fig. 27 is a top explanatory view corresponding to fig. 20.

Fig. 28 is a top explanatory view corresponding to fig. 21.

Fig. 29 is a top explanatory view corresponding to fig. 22.

Fig. 30 is a top explanatory view corresponding to fig. 23.

Fig. 31 is a block diagram showing a control configuration of the chain combination mechanism 131.

Fig. 32 is a side explanatory view schematically showing a fastener chain combining mechanism according to embodiment 2 of the present invention, and shows a timing when the socket body of the base bar of the 2 nd fastener stringer is coupled to the slider which is stationary at the combining position.

Fig. 33 is a side explanatory view schematically showing a fastener chain combining mechanism according to embodiment 2 of the present invention, and shows a timing when the slider stops at a predetermined combining position.

Description of the reference numerals

1 zipper tape 1a zipper fastener stringer

1A, 1 st zipper teeth chain belt, 1B, 2 nd zipper teeth chain belt

2-chain element row 3 puller

3b shoulder opening 10 zipper chain with non-single-side through side

11 spacer 12 reinforcing film

13 socket body with seat rod of perforation part 20

20a socket body portion 20b socket bar

21 plunger 22 upper stop

Apparatus for manufacturing 30 slide fastener 100 synthetic resin slide fastener

110 st device 111 interval generation mechanism

112 film bonding mechanism 113 perforating mechanism

120 nd 2 device 121 pull head unilateral punch-through mechanism

122 upper stop and opener injection molding mechanism 130 equipment 3

131. 131a chain combination mechanism (combination mechanism of fastener chain) 132 slider pull-down mechanism

133 cutting mechanism 140 conveying mechanism

142 drive roller 141a branch point roller

141b confluence roller 141c, 141e the 1 st guide roller (support member)

143 support roller (support member) 160 control section

161 roller drive 163 slider holding member

164 slider stopper 165 guide member

165a guide surface 166 pressing member

166a pressing member driving part 167 No. 2 sensor

168 socket body stops P1, Q1 Path 1

P2, Q2 2 nd path S combination position

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to such embodiments. Fig. 1 is an explanatory view schematically showing a synthetic resin slide fastener manufacturing apparatus (hereinafter, also simply referred to as "slide fastener manufacturing apparatus") 100. The fastener chain combining mechanisms (hereinafter also referred to as "chain combining mechanisms") 131 and 131a according to the present invention described later are one mechanism of the fastener manufacturing apparatus 100, but are not limited thereto, and can be incorporated in other fastener manufacturing apparatuses or fastener manufacturing processes. Fig. 2 is a flowchart showing a processing step performed by the slide fastener manufacturing apparatus 100. Fig. 3 is a plan view showing the continuous fastener chain 10 in section. Fig. 4 is a plan view of the fastener chain 10 in a state where the spacer 11 is formed. Fig. 5 is a plan view of the fastener chain 10 in a state where the reinforcing film 12 is adhered. Fig. 6 is a plan view of the fastener chain 10 in a state where the through hole portion 13 is formed.

The slide fastener manufacturing apparatus 100 is an apparatus for continuously mass-producing a finished slide fastener 30 shown in fig. 17 by performing various processes described below on a continuous slide fastener chain 10 obtained by injection-molding synthetic resin element rows 2, 2 on respective opposing edges of a pair of left and right long fastener tapes 1, 1 (see fig. 3). The fastener chain 10 may be said to include a pair of right and left fastener stringers 1a, 1a having element rows 2, 2 at opposite edges of the right and left fastener tapes 1, 1. Referring to fig. 1, a slide fastener manufacturing apparatus 100 includes: 1 st device 110; the 2 nd device 120; the 3 rd device 130; and a conveying mechanism 140 for conveying the fastener chain 10 to the 1 st apparatus 110, next to the 2 nd apparatus 120, and next to the 3 rd apparatus 130. Hereinafter, the side to which the fastener chain 10 is sent is referred to as "downstream", and the side opposite to the downstream in the conveying direction is referred to as "upstream". In the slide fastener manufacturing apparatus 100, a 1 st buffer 150a and a 2 nd buffer 150b, in which the slide fastener chain 10 is stopped during processing, are provided between the 1 st facility 110 and the 2 nd facility 120 and between the 2 nd facility 120 and the 3 rd facility 130, respectively. The conveyance mechanism 140 includes: rollers such as a guide roller 141 that guides the fastener chain 10 in the conveying path passing through the inside and outside of the 1 st apparatus 110, the 2 nd apparatus 120, and the 3 rd apparatus 130, a drive roller 142 (see fig. 18 and the like) that feeds the fastener chain 10 downstream and upstream in the conveying direction, and a tension roller; a roller driving section 161 (see fig. 31) such as a motor for rotating the driving roller 142 forward and backward; and various components constituting the conveyance path. The conveying mechanism 140 can temporarily stop the conveyance of the fastener chain 10, reverse the conveying direction and convey the fastener chain to the upstream side, or change the conveying speed. By providing the 1 st buffer 150a and the 2 nd buffer 150b, the transport mechanism 140 can be driven independently of the 1 st apparatus 110, the 2 nd apparatus 120, and the 3 rd apparatus 130, respectively.

1 st apparatus

The fastener chain 10 in which the element rows 2, 2 of the left and right fastener stringers 1a, 1a are in the engaged state (closed state) is supplied to the 1 st device 110 by the conveying mechanism 140, but the left and right fastener stringers 1a, 1a in which the element rows 2, 2 are in the non-engaged state (open state) may be in the engaged state (closed state) in the 1 st device 110. The 1 st device 110 includes: a space generating means 111 for partially removing the element row 2 at predetermined intervals in the longitudinal direction of the fastener chain 10 to form a space portion 11 between the opposing edges of the fastener tape 1; a film bonding mechanism 112 for bonding a reinforcing film 12 to a rectangular region corresponding to approximately a half portion on the upstream side of the spacer 11 in the left and right fastener tapes 1, 1 of the fastener chain 10; and a punching mechanism 113 for forming a rectangular-shaped punching portion 13 on the downstream side in the reinforcing film 12. In the first apparatus 110, the fastener chain 10 is processed into the space portion 11, the reinforcing film 12, and the perforated portion 13 in an engaged state, so that the left and right fastener tapes 1, 1 are not displaced during conveyance.

The space generating means 111 partially removes the left and right element rows 2 in the closed state at predetermined intervals in the longitudinal direction of the fastener chain 10. Thereby, a space portion 11 is formed between the opposing edges of the left and right fastener tapes 1, 1. Referring to fig. 4, a relatively thick core portion 11a as a reinforcing portion remains at the facing edge portions of the fastener tapes 1 in the spacer portions 11. The presence or absence of the element row 2, the spacer portion 11, the perforated portion 13, and the like become the reference for positioning in the subsequent step, and are detected by a sensor and the like, not shown. The film bonding mechanism 112 bonds the reinforcing films 12 from both front and back sides of the fastener chain 10. The reinforcing film 12 functions as follows: the adhesion of the molten resin can be improved at the time of injection molding of the later-described openers (20, 21), and the operability can be improved by reinforcing both longitudinal end portions of the single slide fastener 30 as a final product. Referring to fig. 6, when forming the perforation portion 13, the perforation means 113 simultaneously perforates 2 through-holes 14, in total 4 through-holes, in each of the opposing edge portions of the left and right fastener tapes 1, 1 on the upstream side of the perforation portion 13 in the reinforcing film 12.

2 nd apparatus

The fastener chain 10, in which the partition portion 11, the reinforcing film 12, the perforated portion 13, and the like are processed by the 1 st apparatus 110, stays at the 1 st buffer portion 150a, and is supplied to the 2 nd apparatus 120 by the conveying mechanism 140. The 2 nd device 120 includes: a slider one-side threading mechanism 121 for threading the slider 3 from the perforated portion 13 one side through the element row of the fastener stringer 1a of one (left side in fig. 7) of the left and right fastener stringers 1a, 1a in an at least partially opened state; an upper stop and opener injection molding mechanism 122 for simultaneously injection molding the socket body 20 and the insert pin 21 of the seated pin as the opener of the upstream-side fastener unit 10B through which the slider 3 is inserted on one side, and the 2 upper stops 22 of the downstream-side fastener unit 10A adjacent to the upstream-side fastener unit 10B on the downstream side via the through hole 13; and a chain closing mechanism 123 for closing the element rows 2, 2 of the left and right fastener stringers 1a, 1a in the at least partially opened state.

Fig. 7 is a plan view of the fastener chain 10 in an open state after the slider 3 is inserted in one side. Fig. 8 is a plan view of the fastener chain 10 in a state where the openers (20, 21) and the upper stopper 22 are injection-molded. Fig. 9 is a plan view showing the fastener chain 10 changed from the open state to the closed state. The left and right fastener stringers 1a, 1a in the closed state in the 1 st device 110 are partially opened at least on the upstream side and the downstream side near the perforated portion 13 to which the slider 3 is attached, in the upstream of the slider one-side inserting mechanism 121 of the 2 nd device 120. Further, the slider 3 may be inserted one-side by completely opening the left and right fastener stringers 1a, 1a upstream of the slider one-side insertion mechanism 121 of the device 2. In order to open the left and right fastener stringers 1a, 1a in the closed state, the fastener chain 10 is conveyed downstream in a state where a non-illustrated engagement releasing member such as a pin is inserted into the hole 13, and the element rows 2, 2 of the left and right fastener stringers 1a, 1a are separated one by one from the engagement releasing member as a starting point, and are opened. For example, the conveying paths of the left and right fastener stringers 1a, 1a may be branched in the vertical direction, and the element rows 2, 2 of the left and right fastener stringers 1a, 1a may be separated one by one from the branch point. Referring to fig. 7, in the present embodiment, the slider one-side threading mechanism 121 is configured to thread the left shoulder opening 3a of the slider 3 through the opposing edge portion where the reinforcing film 12 is adhered and the through hole 14 is formed from the through hole portion 13 of the left fastener stringer 1a, and thereafter, to feed the left and right fastener stringers 1a, 1a downstream with respect to the slider 3, thereby disposing the slider 3 on the left element row 2 (of the upstream fastener unit portion 10B).

Referring to fig. 8, the upper stop and opener injection molding mechanism 122 injection molds the socket body 20 of the fastener stringer 1a on the left side of the upstream-side fastener unit portion 10B of the slider 3 on one side, the insert pin 21 on the right-side fastener stringer 1a, and the upper stop 22 on the left and right fastener stringers 1a, 1a of the downstream-side fastener unit portion 10A. The fastener unit sections (10A, 10B) are portions of the continuous fastener chain 10 that eventually become the single slide fastener 30, and the upper stop and opener injection molding mechanism 122 simultaneously molds the openers (20, 21) of one of the 2 fastener unit sections (10A, 10B) and the upper stop 22 of the other.

Fig. 10 is a plan view showing the lower mold 124 of the upper stopper and opener injection molding mechanism 122 on the back side (back side in fig. 10) of the fastener chain 10. Fig. 11 is a schematic sectional view taken along line a-a of fig. 10. The upper-stopper/opener injection molding mechanism 122 includes a lower mold 124, an upper mold not shown, and a runner 125 for supplying molten resin into cavities of the lower mold 124 and the upper mold. The cavity of the lower mold 124 and the upper mold is divided into 4 cavity parts corresponding to the plunger 21, the socket body 20 with the socket bar, and the 2 upper stoppers 22, 22. The runner 125 branches from a sprue 126 serving as a gate for the molten resin into 4 cavity portions. The socket body 20 with a box pin is formed at the opposite edge of the fastener stringer 1a on the left side of the upstream-side fastener element portion 10B, to which the reinforcing film 12 is bonded, on the upstream side (upper side in fig. 10) of the through hole portion 13. The insert pin 21 is formed at an opposite edge portion corresponding to the socket body 20 of the fastener stringer on the right side of the upstream fastener stringer unit portion 10B. The 2 upper stoppers 22 and 22 are formed adjacent to the upstream ends of the element rows 2 and 2 of the left and right fastener stringers 1a and 1a of the downstream-side fastener unit portion 10A. When the socket body 20 and the insert pin 21 of the fastener tape 1 are injection molded, the molten resin is also impregnated into the 4 through holes 14, and the resin solidified in the through holes 14 connects the socket body 20 and the insert pin 21 of the fastener tape 1 on the front and back sides. This can improve the fixing force of the receptacle body 20 and the insert pin 21 of the box pin to the fastener tape 1. After the injection-molded openers (20, 21) and the upper stopper 22 are solidified, the ejector pin 127 shown in fig. 11 retracted into the lower mold 124 is projected from the lower mold 124, whereby the openers (20, 21) and the upper stopper 22 can be separated from the runner 125 as shown in fig. 12. Next, as shown in fig. 13, the lower mold 124 (and the upper mold) moves in one of the left and right directions of the fastener chain 10 (the right side in fig. 13). This can suppress contact between the fastener chain 10 or the slider 3 and the runner 125 and the sprue 126 when the fastener chain 10 is conveyed downstream.

Fig. 14 is a plan view showing the fastener chain 10 in a cut-away state, in which the closed state is started by the chain closing mechanism 123. Fig. 15 is a plan view of the fastener chain 10 in a state of being conveyed downstream from the state of fig. 14. The chain closing mechanism 123 includes: a pair of right and left rod-shaped engaging members 123a, and a driving unit (not shown) for moving each engaging member 123a in the right and left direction. The driving section allows the respective engaging elements 123a to move between an initial position at which they are separated from each other and a close position at which they are close to each other and the fastener chain 10 is sandwiched so that the left and right element rows 2, 2 are engaged with each other. Although not shown, each engaging member 123a is provided with a tape groove for receiving the fastener tape 1 when it is at the close position. After the slider 3 is once inserted into the fastener chain 10, the left and right engaging elements 123a, 123a are moved from the initial position to the close position, and the left and right element rows 2, 2 are partially engaged with each other, and the left and right engaging elements 123a, 123a are disposed upstream in the conveying direction from the position of the fastener chain 10 where the slider 3 is once inserted. By conveying the fastener chain 10 downstream while the left and right engaging elements 123a, 123a are once maintained at the close position, the left and right element rows 2, 2 of the corresponding upstream-side fastener unit portion 10B can be closed to the upper end or the vicinity of the upper end. Then, the left and right engaging members 123a, 123a return to the initial positions.

3 rd equipment

Fig. 16 is a plan view of the slide fastener chain 10 in a state where the socket body 20 with the box pin and the insert pin 21 are combined. Fig. 17 is a plan view showing the completed slide fastener 30, and shows a state in which the slider 3 is pulled down from the upper stopper 22. The 3 rd device 130 includes: the invention relates to a zipper chain combination mechanism 131, which is used for combining a socket body 20 with a seat rod and an insert rod 21; and a cutting mechanism 133 for cutting the fastener chain 10 in the width direction at a portion corresponding to the perforated portion 13. The chain combining mechanism 131 combines the socket body 20 with the bar and the plunger 21 separated from each other in the state of fig. 15, which will be described in detail later. In fig. 16, the slider 3 of the downstream-side fastener unit portion 10A abuts against the upper stop portion 22 and is located at an upper-stop-portion regulating position at which further upward (upstream-side) movement thereof is regulated. In the present embodiment, when the slider 3 is located at the upper stop portion restricting position, most of the upper stop portion 22 is hidden in the slider 3. A slider pull-down mechanism 132 for pulling down the slider 3 positioned at the upper-stopper limit position may be additionally provided to the third device 130. The slider pull-down mechanism 132 pulls down the slider 3 positioned at the upper stop portion restricting position to expose the upper stop portion 22. The exposed top dead center 22 can be automatically checked for proper formation by a checking mechanism using an image acquired by an imaging means such as a camera or a checking mechanism using a contact or non-contact sensor. Alternatively, whether or not the formation is normal can be checked by visual inspection of an operator. The visual inspection may be performed after the fastener chain 10 is cut into the slide fastener 30 by the cutting mechanism 133. The examination object of the examination function described above may include not only the upper portion 22 but also the openers (20, 21) or the lower portion. Next, the fastener chain 10 is cut at a portion corresponding to the perforated portion 13 by the cutting mechanism 133, and a plurality of slide fasteners 30 are obtained. For convenience, the slider 3 in a state pulled down from the upper-stop regulation position by the slider pull-down mechanism 132 is shown in fig. 17 showing the slide fastener 30 after being cut, but is cut by the cutting mechanism 133 after the slider 3 is pulled down. By being cut through the through-hole portion 13, a reinforcing film portion 12a as a part of the reinforcing film 12 remains at the upper end portion of the left and right fastener stringers 1a, 1a of the slide fastener 30, and a reinforcing film portion 12b as a part of the reinforcing film 12 remains at the lower end portion of the fastener stringers 1a, 1 a.

Next, several embodiments of a method and a mechanism for assembling a fastener chain according to the present invention will be described with reference to the drawings. Fig. 18 to 23 are side explanatory views showing a process of combining the socket body 20 with the box pin and the insert pin 21 as the opener in the fastener chain combining mechanism (chain combining mechanism) 131 according to embodiment 1 of the present invention. Fig. 25 to 30 are top explanatory views corresponding to fig. 18 to 23, respectively. Fig. 24 is an enlarged view of circled portion C of fig. 22. Fig. 31 is a block diagram showing a control configuration of the chain combination mechanism 131. Referring to fig. 18 and the like, the fastener chain 10 supplied from the 2 nd buffer 150b of the synthetic resin zipper manufacturing apparatus 100 to the chain combining mechanism 131 of the 3 rd machine 130 by the conveying mechanism 140 includes: a 1 st fastener stringer (hereinafter also referred to as "1 st stringer") 1A in which one of right and left sides (right side of the paper surface in fig. 25 to 30) of the insert pins 21 is formed by the upper end portion of the 2 nd facility 120 and the opener injection molding mechanism 122 in the fastener manufacturing apparatus 100; and a 2 nd fastener stringer (hereinafter also referred to as "2 nd stringer") 1B which is a fastener stringer 1a in which the slider 3 is once inserted by the slider one-side insertion mechanism 121 of the 2 nd device 120 and the other of the left and right (left side of the paper surface of fig. 25 to 30) of the socket body 20 in which the tape holder bar is formed by the upper stop portion and the opener injection molding mechanism 122.

The 1 st and 2 nd stringers 1A and 1B in an open state where the engagement between the left and right element rows 2 is released are supplied to the chain combining mechanism 131 by the conveying mechanism 140. The chain combining mechanism 131 includes a moving mechanism for moving the 1 st and 2 nd stringers 1A and 1B in the opened state to the upstream side in the conveying direction and the downstream side in the conveying direction. The moving mechanism includes a plurality of sets of driving rollers (feed rollers) 142 and a roller driving section 161 (see fig. 31) for rotating the driving rollers 142 forward or backward. At least one of the 1-group drive rollers 142 is rotated forward or backward by a motor (not shown). The roller driving unit 161 normally or reversely rotates the motor based on a command from the control unit 160 described later, thereby driving the roller 142 normally or reversely. When the driving roller 142 rotates forward, the 1 st and 2 nd stringers 1A, 1B move downstream in the conveying direction. When the driving roller 142 is reversed, the 1 st and 2 nd stringers 1A, 1B move upstream in the conveying direction. In other words, the 1 st and 2 nd stringers 1A, 1B are moved downstream and upstream in the conveying direction by the common drive roller 142.

The chain combining mechanism 131 includes: a 1 st path P1 for conveying the 1 st dental chain band 1A and a 2 nd path P2 branched from the 1 st path P1 for conveying the 2 nd dental chain band 1B. The 1 st path P1 and the 2 nd path P2 are branched, but have the same conveying length. A branch point roller 141a is provided at a point on the upstream side in the conveying direction from which the 1 st path P1 and the 2 nd path P2 branch, and a joining point roller 141b is provided at a point on the downstream side in the conveying direction from which the 1 st path P1 and the 2 nd path P2 join. The conveying path of the 1 st and 2 nd stringers 1A, 1B in the chain combining mechanism 131 is divided from the upstream to the downstream in the conveying direction into: an upper horizontal path T1 extending substantially horizontally to the branch point roller 141 a; the 1 st path P1 and the 2 nd path P2 between the branch point roller 141a and the merge point roller 141 b; and a lower horizontal path T2 extending substantially horizontally from the confluence roller 141b beyond the illustrated drive roller 142. The upper horizontal path T1 is substantially parallel to the lower horizontal path T2, and the lower horizontal path T2 is provided vertically below the upper horizontal path T1.

The 1 st path P1 is provided with a 1 st guide roller 141c for guiding the 1 st fastener tape 1A having passed through the branch point roller 141A to the 1 st path P1. The 1 st path P1 includes: a 1 st horizontal path P1a substantially horizontal between the branch point roller 141a and the 1 st guide roller 141 c; and a 1 st inclined path P1b inclined downward toward the downstream side in the conveying direction between the 1 st guide roller 141c and the confluence roller 141 b. The 2 nd path P2 is provided with a 2 nd guide roller 141d for guiding the 2 nd fastener tape 1B having passed through the branch point roller 141a to the 2 nd path P2. The 2 nd path P2 includes: a 2 nd oblique path P2b between the branch point roller 141a and the 2 nd guide roller 141d, which is oblique to the downstream side in the conveying direction and downward; and a 2 nd horizontal path P2a between the 2 nd guide roller 141d and the confluence roller 141b, which is substantially horizontal. The 1 st horizontal path P1a is located on an extension of the upper horizontal path T1, and the lower horizontal path T2 is located on an extension of the 2 nd horizontal path P2 a. Also, the 1 st horizontal path P1a and the 2 nd horizontal path P2a are parallel to each other, and the 1 st inclined path P1b and the 2 nd inclined path P2b are parallel to each other. Therefore, in the present embodiment, the 1 st path P1 and the 2 nd path P2 are branched to form a parallelogram shape in the vertical direction. Further, if the transport lengths of the 1 st path P1 and the 2 nd path P2 are the same, the 1 st path P1 and the 2 nd path P2 may be branched in the vertical direction into a shape other than a parallelogram, for example, a rectangle, a rhombus, or the like. The branch point roller 141a, the confluence point roller 141b, the 1 st guide roller 141c, and the 2 nd guide roller 141d are configured as the conveying mechanism 140, but may be configured as the chain combining mechanism 131.

The chain combining mechanism 131 is provided with a support roller 143 as a support member, and the support roller 143 supports the 1 st dental chain belt 1A on the 1 st horizontal path P1A of the 1 st path P1 from below. The support roller 143 supports the 1 st dental chain belt 1A pressed downward by a pressing member 166 described later from below together with the 1 st guide roller 141 c. Therefore, the 1 st guide roller 141c can be said to be a support member together with the support roller 143.

The chain combining mechanism 131 includes: a contact or non-contact sensor 162 for detecting the slider 3 on the 2 nd fastener tape 1B; a slider stopping mechanism for stopping the slider 3 on the 2 nd fastener tape 1B at a predetermined combination position S (see fig. 18); a slider holding member 163 that holds the slider 3 stopped at the combination position S by the slider stopping mechanism; a slider stopper 164 capable of preventing the slider 3 stopped at a predetermined combination position S from moving upstream in the conveying direction from the combination position S; a pressing member 166 for pressing the 1 st dental chain band 1A downward in the 1 st horizontal path P1A of the 1 st path P1; and a guide member 165 for guiding the insert pin 21 of the 1 st fastener tape 1A partially placed on the slider 3 at the assembly position S to the other shoulder opening 3b, which is the non-one-side through side of the slider 3, as will be described later. The chain combining mechanism 131 includes a socket stopper 168 for pressing the socket 20 of the box pin that contacts the slider 3 stopped at the predetermined combining position S (see fig. 20 and the like). The sensor 162 is disposed above on the downstream side of the lower horizontal path T2. The guide member 165 incorporates a 2 nd sensor 167 (see fig. 20 and the like). The 2 nd sensor 167 can detect the slider 3 approaching the predetermined combination position S and detect the socket body 20 of the box pin before or in contact with the slider 3 stopped at the predetermined combination position S. The detection signals of the slider 3 and the socket body 20 with the box pin of the 2 nd sensor 167 are transmitted to the control unit 160 (see fig. 31). Further, the detection of the socket body 20 with the bar may be performed by a sensor different from the 2 nd sensor 167. The slider stopping mechanism includes a 2 nd sensor 167, a control section 160, a roller driving section 161 (see fig. 31), a driving roller 142, and a slider stopper 164. The operation of the slider stop mechanism will be described later. The slider stopper 164 is provided below the position on the upstream side of the sensor 162 in the lower horizontal path T2 so as to be close to the lower horizontal path T2. The slider holding member 163 is disposed adjacent to the slider stopper 164 on the downstream side. As shown in an enlarged view in fig. 24, the guide member 165 has a guide surface 165a capable of guiding the insert pin 21 partially placed on the slider 3 to the other shoulder opening 3b, which is the non-one-side through side of the slider 3. The socket stopper 168 is movable from one of the left and right directions to a position adjacent to the socket body 20 of the box pin, which is in contact with the slider at the predetermined combination position S, as will be described later, immediately downstream in the conveying direction at the predetermined combination position S and immediately below the lower horizontal path T2. In fig. 18 and the like, reference numeral 165b denotes a conveyance guide for guiding conveyance of the fastener chain 10. The pressing member 166 is provided above the 1 st horizontal path P1a in the 1 st path P1 located on the upstream side in the conveying direction of the combination position S. The pressing member 166 is moved by the pressing member driving part 166a (see fig. 31) between an initial position where the pressing member 166 is not in contact with the 1 st dental chain band 1A and a pressing position where the 1 st dental chain band 1A is pressed downward. The pressing member driving unit 166a moves the pressing member 166 in accordance with a command from the control unit 160.

Next, as a method of assembling a slide fastener chain according to the present invention, a step of combining the socket body 20 with the box pin and the insert pin 21 in the chain combining mechanism 131 will be described. The 1 st fastener tape 1A and the 2 nd fastener tape 1B, which are opened between the fastener element rows 2 and move to the downstream side in the conveying direction and the upstream side in the conveying direction described later on the lower horizontal path T2, move in a state where the respective fastener element rows 2 are brought close to or in contact with each other (see fig. 25 and the like). Therefore, the socket body portion 20a of the socket body 20 of the bar socket of the 2 nd dental tape 1B is extended toward the 1 st dental tape 1A in the width direction, and the 1 st dental tape 1A and the 2 nd dental tape 1B are moved in a state where the insert bar 21 of the 1 st dental tape 1A is placed on the extended socket body portion 20 a. On the other hand, the 1 st and 2 nd stringers 1A and 1B moving on the 1 st and 2 nd paths P1 and P2 are branched in the vertical direction, and thus the insert pin 21 of the 1 st stringer 1A is separated from the socket body portion 20a of the 2 nd stringer 1B.

Fig. 18 and 25 show a timing when the sensor 162 detects the slider 3 on the 2 nd fastener tape 1B while the 1 st fastener tape 1A and the 2 nd fastener tape 1B in the opened state move to the downstream side in the conveying direction on the lower horizontal path T2 (step a). Thereby, the sensor 162 transmits a detection signal to the control section 160, and the control section 160 sends a reverse rotation command to the roller driving section 161 based on the detection signal. In response to this, the roller driving section 161 switches the driving roller 142 that has been rotated forward to reverse (step B). Thereby, the 1 st and 2 nd stringers 1A, 1B start to move to the upstream side in the conveying direction. Fig. 19 and 26 show a timing when the slider 3 on the 2 nd fastener tape 1B is stopped at the predetermined combination position S by the slider stopping mechanism in the process where the 1 st fastener tape 1A and the 2 nd fastener tape 1B move to the upstream side on the lower horizontal path T2 (step C). Hereinafter, the operation of the slider stop mechanism for stopping the slider 3 at the predetermined combination position S will be described. In the process of moving the 1 st stringer 1A and the 2 nd stringer 1B to the upstream side in the conveying direction on the lower horizontal path T2, the 2 nd sensor 167 built in the guide member 165 detects the slider 3 immediately before the slider 3 abuts against the slider stopper 164. Based on this detection, the control section 160 (see fig. 31) stops the rotation of the driving roller 142 via the roller driving section 161. Thus, the movement of the 1 st stringer 1A and the 2 nd stringer 1B to the upstream side in the conveying direction is stopped, and the slider 3 on the 2 nd stringer 1B can be stopped at the predetermined combination position S. In this case, the slider stopper 164 prevents the slider 3 stopped at the predetermined combination position S from moving upstream in the conveying direction. The slider stopper 164 can be said to be an auxiliary member for positioning the slider 3. Further, by abutting the slider 3 against the slider stopper 164, the slider 3 can be stopped at the predetermined combination position S. The slider 3 is held by the slider holding member 163 as soon as it stops at the predetermined combination position S. The position of the slider 3 held by the slider holding member 163 can be said to be the combination position S. When the slider 3 is of a type having a locking mechanism that generates resistance to movement of the slider relative to the element row 2 in accordance with the raising of a tab (not shown), for example, the slider 3 is held by the slider holding member 163 in a state where the locking mechanism of the slider 3 is released. Referring to fig. 24, reference numeral 3d denotes an upper blade of the slider 3, reference numeral 3e denotes a tab coupling portion provided on the upper blade 3d, and reference numeral 3f denotes a lower blade. In this way, the slider 3 is held with the lower blade 3f being positioned upward and with the pair of shoulder openings 3a and 3b facing upstream in the conveying direction and the rear opening 3c facing downstream in the conveying direction.

After the slider 3 stops at the combination position S, the movement of the 1 st stringer 1A and the 2 nd stringer 1B to the upstream side is restarted. At this time, the element row 2 of the 2 nd fastener tape 1B passes through the element guide path in the slider 3 which is stopped and moves to the upstream side. Thereby, the socket body 20 and the insert pin 21 of the tape seat pin positioned on the downstream side of the slider 3 in the 1 st fastener tape 1A and the 2 nd fastener tape 1B gradually come close to the slider 3. Fig. 20 and 27 show a timing when the socket body 20 of the tape holder bar of the 2 nd fastener tape 1B contacts the slider 3 stopped at the combination position S (step D). At the time of this contact, the box pin 20b of the box body 20 with the box pin is inserted into the slider from the rear opening 3c (see fig. 24) of the slider 3. The socket body 20 of the box pin of the 2 nd fastener tape 1B during the movement to the upstream side abuts against the slider 3 being stopped in a state where the box pin 20B is inserted into the slider 3, and the slider 3 prevents the further movement to the upstream side. When the 2 nd sensor 167 in the guide member 165 detects the socket 20 of the box pin close to the slider 3 stopped at the set position S, the control section 160 moves the socket stopper 168 from the initial position to the pressed position adjacent to the socket 20 of the box pin via the socket stopper driving section 168a (see fig. 31). Thereby, the socket body 20 of the box pin contacting the slider 3 at the combination position S is pressed by the socket body stopper 168. Thus, when the insert pin 21 is combined with the socket body 20 of the box pin via the slider 3 as described below, the shift of the socket body 20 of the box pin with respect to the slider 3 can be suppressed. The movement of the socket stopper 168 to the pressed position is performed substantially simultaneously with the formation of the slack portion 10a in the 1 st dental tape 1A and the 2 nd dental tape 1B, which will be described later. When the socket body 20 of the box pin comes into contact with the slider 3 at the predetermined combination position S, the movement of the 2 nd stringer 1B on the upstream side of the combination position S is stopped. Accordingly, the insert pin 21 of the 1 st dental chain tape 1A moved by the driving roller 142 common to the 2 nd dental chain tape 1B is also stopped from moving, and the movement of the 1 st dental chain tape 1A on the upstream side of the combination position S is stopped from moving on the upstream side. At this time, the insert pin 21 is stopped in a state of being positioned on the socket body portion 20a of the socket body 20 of the tape seat bar of the 2 nd stringer 1B. More specifically, at the time when the socket body 20 of the box pin of the 2 nd fastener tape 1B is stopped, as shown in fig. 27, substantially a half of the downstream side of the insert pin 21 is positioned on the socket body portion 20a, and substantially a half of the upstream side of the insert pin 21 is placed on the slider 3.

The socket body 20 of the box pin comes into contact with the slider 3 at the combination position S and stops, whereby the upstream side movement of the 1 st stringer 1A and the 2 nd stringer 1B on the upstream side of the combination position S stops, but thereafter the reverse rotation of the drive roller 142 continues. At this time, the driving roller (not shown) on the upstream side of the combination position S stops. Thereby, the slack 10a is generated in the 1 st and 2 nd stringers 1A, 1B on the downstream side of the combination position S. Fig. 21 and 28 show a timing when the predetermined amount of slack 10a is generated in the 1 st stringer 1A and the 2 nd stringer 1B (step G). Upon completion of the generation of the predetermined amount of the slack portion 10a, the control portion 160 transmits an operation signal to the pressing member driving portion 166 a. Thereby, the pressing member 166 moves from the initial position to the pressing position, and presses the 1 st dental chain band 1A located on the 1 st horizontal path P1A of the 1 st path P1 downward. Thereby, the 1 st fastener tape 1A is pulled toward the upstream side of the combining position S by an amount corresponding to the slack portion 10a of the 1 st fastener tape 1A. Fig. 22 and 29 show a timing when the insert pin 21 of the 1 st fastener tape 1A is moved from the slider 3 to a position facing the shoulder opening 3b on the non-one-side threading side of the slider 3 by the pulling-up of the 1 st fastener tape 1A (step E). Referring to fig. 24, the insert pin 21 which has been partially mounted on the slider 3 until now is pulled upstream by the pull-in of the 1 st fastener tape 1A, and is guided by the guide surface 165a of the guided member 165 to move to a position facing the shoulder opening 3b on the non-one-side insertion side of the slider 3. The timing at which the control unit 160 transmits the operation signal to the pressing member driving unit 166a to move the pressing member 166 to the pressing position can be executed by, for example, the control unit 160 calculating the moving distance of the 1 st dental chain belt 1A and the 2 nd dental chain belt 1B from the time when the driving roller 142 is switched from the normal rotation to the reverse rotation, or setting the time from the time when the driving roller 142 is switched from the normal rotation to the reverse rotation to the timing at the control unit 160. Further, a timing at which the socket body 21 of the holder bar of the 2 nd fastener tape 1B is stopped by the slider 3 may be detected, and the control unit 160 may transmit an operation signal to the pressing member driving unit 166a based on a moving distance or time of the 1 st fastener tape 1A and the 2 nd fastener tape 1B from the timing.

The 1 st fastener tape 1A is pulled toward the upstream side by the pressing member 166, the insert pin 21 is moved to a position facing the shoulder 3b on the non-one-side through side of the slider 3 at the set position S, and then the pressing member 166 is returned to the initial position via the pressing member driving portion 166 a. After the pressing member 166 moves to the initial position, the control section 160 returns the driving roller 142 from the reverse rotation to the normal rotation via the roller driving section 161. Thereby, the 1 st and 2 nd stringers 1A and 1B start to move downstream in the conveying direction. At this time, the insert pin 21 of the 1 st fastener tape 1A is inserted into the slider 3 from the shoulder opening 3b on the non-one-side through side of the slider 3, and is inserted into the slider 3 and combined with the socket body 20 of the box pin (step F). When the plunger 21 is combined with the socket 20 having a seat, the control section 160 returns the socket stopper 168 from the pressed position to the initial position via the socket stopper driving section 168 a. Fig. 23 and 30 show the timing when the insert pin 21 is inserted into the slider 3 and the socket body 20 with the box pin. At the time point when the pressing member 166 is returned to the initial position via the pressing member driving part 166a and the driving roller 142 starts normal rotation, the slack 10a remains in the 1 st dental tape 1A and the 2 nd dental tape 1B, and therefore, the downstream movement of the 1 st dental tape 1A and the 2 nd dental tape 1B does not start until the slack 10a is eliminated. Then, the 1 st stringer 1A and the 2 nd stringer 1B are further moved in the downstream direction, whereby the socket body 20 of the insert pin 21 and the box pin after combination is separated from the slider 3 in the downstream direction, and the element rows 2 of the 1 st stringer 1A and the 2 nd stringer 1B following the socket body 20 of the insert pin 21 and the box pin are fed in the downstream direction in the feeding direction while being engaged with each other through the slider 3 in the S stop state at the combination position.

In the above embodiment 1, the slack portion 10a is generated in the 1 st stringer 1A and the 2 nd stringer 1B, but the present invention is not limited to this. Fig. 32 is a side explanatory view schematically showing a fastener chain combining mechanism (chain combining mechanism) 131a according to embodiment 2 of the present invention. The chain combining mechanism 131A is different from the chain combining mechanism 131 of embodiment 1 in that a conveying length of a 1 st path Q1 for conveying a 1 st stringer 1A is set longer than a 2 nd path Q2 for conveying a 2 nd stringer 1B on an upstream side of a combining position S. In the chain combining mechanism 131a, the same reference numerals are used for the substantially same components as those of the chain combining mechanism 131, and the description thereof is omitted.

The conveying path of the fastener chain 10 in the chain combining mechanism 131a is substantially horizontal from upstream to downstream except for the 1 st path Q1. Fig. 32 and 33 show 2 sets of driving rollers 142. The 2 sets of driving rollers 142 synchronously rotate forward and backward under the control of the common control unit 160. In the 1 st path Q1, the drive roller 142 on the upstream side is inclined upward and to the downstream side toward the 1 st guide roller 141e, and the guide roller 141e on the 1 st path is inclined downward and to the downstream side toward the guide member 165. The 1 st guide roller 141e is a structure of the conveying mechanism 140, and is also a supporting member that supports the 1 st dental tape 1A against the pressing of the 1 st dental tape 1A by the pressing member 166.

In the step of assembling the fastener chain 10 by the chain assembling mechanism 131a, steps a to D described with respect to embodiment 1 are substantially the same. Fig. 32 shows a timing when the socket body 20 of the tape holder bar of the 2 nd fastener tape 1B is coupled to the slider 3 which is stationary at the assembly position S in the step D. At this time, the insert pin 21 of the 1 st fastener tape 1A is partially placed on the slider 3, that is, on an upward surface of a lower blade 3f (see fig. 24) of the slider 3. In the chain combination mechanism 131a, as soon as the socket body 20 with the box pin is coupled to the slider 3 and the insert pin 21 is partially placed on the slider 3, the control portion 160 moves the pressing member 166 to the pressing position downward via the pressing member driving portion 166 a. As a result, as shown in fig. 33, the 1 st fastener tape 1A located on the 1 st path Q1 on the upstream side of the combining position S is pulled close, and the insert pin 21 is guided by the guide surface 165a of the guide member 165 and moved to a position facing the shoulder opening 3b on the non-one-side insertion side of the slider 3 (step E). Then, by returning the driving roller 142 to the normal rotation, the seater bar 20 with a seater bar and the insert bar 21 are combined as in embodiment 1. In embodiment 2, by setting the conveying length of the 1 st path Q1 longer than the conveying length of the 2 nd path Q2 by an amount equivalent to the pulling-up of the 1 st fastener stringer 1A, the 1 st fastener stringer 1A can be pulled up without providing the slack portion 10a of the fastener stringer 10.

Claims (13)

1. A method of assembling a fastener chain, comprising:

a step A of detecting a slider (3) on a 2 nd fastener stringer (1B) including a 1 st fastener stringer (1A) in which an insert pin (21) is formed and a socket body (20) having a box pin is formed on the 2 nd fastener stringer (1B) in a process in which a fastener chain (10) including the 2 nd fastener stringer (1B) having the 1 st fastener stringer (1A) and the 2 nd fastener stringer (1B) having the slider (3) inserted therethrough is moved downstream in a conveying direction in an open state in which the engagement between the element rows (2) is released;

a step B of switching the movement of the fastener chain (10) from downstream to upstream in the conveying direction when the slider (3) is detected;

a step C of stopping the slider (3) on the 2 nd fastener stringer (10B) of the fastener chain (10) moving upstream in the conveying direction at a predetermined combination position (S);

a step D of bringing a receptacle body (20) of the box pin of the 2 nd fastener stringer (10B) of the fastener chain (10) moving upstream in the conveying direction into contact with the slider (3) positioned at the combining position (S);

a step E of guiding the insert pin (21) to a position facing a shoulder opening (3b) of the slider (3) located at the combination position (S), the shoulder opening being not on the one-side threading side, by pulling the 1 st fastener stringer (1A) closer from the upstream side of the combination position (S); and

And a step (F) of switching the movement of the fastener chain (10) from the upstream to the downstream in the conveying direction, inserting the insert pin (21) into the shoulder opening (3b) on the non-one-side through side of the slider (3) at the combination position (S), and combining the insert pin with the socket body (20) of the box pin.

2. The method of assembling a fastener chain according to claim 1, wherein:

and a step G of, after the step D, continuing the movement of the fastener chain (10) to the upstream side in the conveying direction and slackening the fastener chain (10) at the downstream side in the conveying direction of the combination position (S).

3. The method of assembling a fastener chain according to claim 1, wherein:

in order to pull up the 1 st fastener stringer (1A) in the step E, a conveying length of a conveying path (Q1) of the 1 st fastener stringer (1A) is made longer than a conveying length of a conveying path (Q2) of the 2 nd fastener stringer (1B) on an upstream side of the combining position (S).

4. The method of assembling a fastener chain according to claim 1, wherein:

in the step D, at least a part of the insert pin (21) of the 1 st fastener stringer (1A) is placed on the slider (3) located at the assembly position (S).

5. A slide fastener chain combining mechanism, comprising:

a moving mechanism (142, 161) for moving a fastener chain (10) to the downstream side in the conveying direction and to the upstream side in the conveying direction in an open state where the engagement between the element rows (2) is released, the fastener chain (10) including a 1 st fastener stringer (1A) formed with an insert pin (21) and a 2 nd fastener stringer (1B) having a socket body (20) formed with a box pin and having one side passing through a slider (3);

a control unit (160) for switching the movement of the fastener chain (10) by the movement mechanisms (142, 161) from downstream to upstream and from upstream to downstream;

a sensor (162) for detecting the slider (3) on the 2 nd fastener stringer (1B) moving downstream in the conveying direction;

a slider stopping mechanism for stopping the slider (3) on the 2 nd fastener stringer (1B) in the process of moving upstream in the conveying direction at a predetermined combination position (S);

a pressing member (166) for pressing the 1 st fastener stringer (1A) on the upstream side of the combining position (S) to draw the 1 st fastener stringer (1A) toward the upstream side; and

And a guide member (165) for guiding the insert pin (21) to a position facing a shoulder opening (3b) on a non-one-side-piercing side of the slider (3) located at the combination position (S) by the pull-up of the 1 st fastener stringer (1A) by the pressing member (166).

6. The fastener chain combination according to claim 5, wherein:

the slider stop mechanism includes a slider stopper (164), and the slider stopper (164) can prevent the slider (3) stopped at the predetermined combination position (S) from moving to the upstream side in the conveying direction of the predetermined combination position (S).

7. The combination mechanism of a fastener chain according to claim 5 or 6, wherein:

the slider stopper (168) is provided for holding the socket body (20) of the box pin that is in contact with the slider (3) stopped at the predetermined combination position (S).

8. The fastener chain combination according to claim 5, wherein:

the slider holding member (163) is provided, and the slider (3) which is stopped at the predetermined combination position (S) by the slider stopping mechanism is held by the slider holding member (163).

9. The combination mechanism of a fastener chain according to claim 5 or 6, wherein:

upstream in the conveying direction of the combined position (S), comprising: a 1 st path (P1, Q1) for conveying the 1 st fastener stringer (1A); and a 2 nd path (P2, Q2) branched from the 1 st path (P1, Q1) for conveying the 2 nd fastener stringer (1B), the pressing member (166) being provided opposite to the 1 st path (P1, Q1).

10. The fastener chain assembly of claim 9, wherein:

the 1 st path (P1) and the 2 nd path (P2) have the same conveying length.

11. The fastener chain assembly of claim 9, wherein:

the fastener stringer tape drive device is provided with a support member (143, 141c, 141e), and the support member (143, 141c, 141e) supports the 1 st fastener stringer tape (1A) by the pressing member (166) pressing the 1 st fastener stringer tape (1A) in the 1 st path (P1, Q1).

12. The fastener chain combination according to claim 5, wherein:

the fastener stringer is provided with a pressing member driving unit (166a), the pressing member driving unit (166a) moves the pressing member (166) between an initial position and a pressing position for pressing the 1 st fastener stringer (1A), and the control unit (160) controls the pressing member (166) through the pressing member driving unit (166 a).

13. The fastener chain combination according to claim 5, wherein:

the slider stopping mechanism includes a 2 nd sensor (167) for detecting the slider (3) approaching the predetermined combination position (S), and the control unit (160) stops the conveyance of the 1 st fastener stringer (10A) and the 2 nd fastener stringer (10B) to the upstream side in the conveying direction based on the detection of the slider (3) by the 2 nd sensor (167).

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