CN119840077A - Positioning mechanism and positioning method for zipper chain - Google Patents

Abstract

The invention provides a positioning mechanism of a zipper chain, which can correct and restrain deformation of a perforation part or inclination of a core rope. The present invention relates to a positioning mechanism for positioning a fastener chain in an injection molding position of an opening member. The positioning mechanism of the fastener chain has left and right perforated portion guides that can be displaced laterally outward through the perforated portions of the fastener chain. The fastener chain positioning mechanism includes an upper die and a lower die for injection molding the opening tool, a1 st stopper capable of receiving the fastener element at the downstream end of the fastener chain on the upstream side of the spacer and restricting the movement of the fastener chain to the downstream side, and a chain pressing mechanism capable of pressing the fastener chain on the upstream side of the spacer to the downstream side and causing the fastener element at the downstream end to abut against the 1 st stopper.

Description

Positioning mechanism and positioning method for zipper chain

Technical Field

The present invention relates to a positioning mechanism and a positioning method for a fastener chain, and more particularly, to a positioning mechanism and a positioning method for a fastener chain for positioning the fastener chain at an injection molding position of an opener or the like.

Background

There are cases where the opening or stopper is injection molded during continuous manufacturing of the slide fastener based on a continuous fastener chain. In this case, it is necessary to precisely position the fastener chain at the injection molding position. An example of a positioning mechanism for this purpose is described in chinese patent application publication 115336843 (patent document 1).

However, according to the technique described in patent document 1, even if the fastener chain is positioned at the injection position of the opener or the like in the conveying direction, there are cases where the perforated portion of the fastener chain is deformed or the core rope is inclined. In such a case, the opening member or the like may not be formed well, and may cause a defective product. In particular, deformation of the perforated portion or the like is likely to occur when the length of the auxiliary film adhered to the fastener chain before the perforated portion is formed in the longitudinal direction of the fastener chain is small.

Prior art literature

Patent literature

Patent document 1 Chinese patent application publication No. 115336843 specification

Disclosure of Invention

The present invention has been made in view of the above-described problems, and an object thereof is to provide a positioning mechanism for a fastener chain that can correct and suppress deformation of a perforated portion or inclination of a core rope.

In order to solve the above-described problems, according to an aspect of the present invention, there is provided a positioning mechanism of a fastener chain for positioning the fastener chain at an injection molding position of an opening piece, the positioning mechanism of the fastener chain having left and right perforated portion guides capable of passing through the perforated portions of the fastener chain to be displaced to left and right outer sides.

According to the present invention, when the fastener chain is positioned at the injection molding position of the opener, the left and right perforated portion guides are passed through the perforated portions of the fastener chain, and then the perforated portion guides are displaced to the left and right outer sides. Thus, even if the perforated portion is deformed, it can be corrected. In addition, even if the core rope near the perforated portion is inclined, the core rope is corrected. In the present specification, "left and right outer sides" means sides of the left and right perforated portion guides that are apart from each other in the width direction of the fastener chain.

An embodiment of the present invention includes an upper die and a lower die for injection molding the opening tool, a1 st stopper capable of blocking a fastener element at a downstream side end of a fastener chain on an upstream side of the spacer to restrict downstream movement of the fastener chain, and a chain pressing mechanism for pressing the fastener chain on the upstream side of the spacer to the downstream side to bring the fastener element at the downstream side end into abutment with the 1 st stopper. The opening member may be a socket body with a socket rod or a plunger, but is not limited thereto. The 1 st blocking member can be provided to the lower die or the upper die. The perforated portion guide portion is assembled to the lower die or the upper die so as to be displaceable laterally. During the downstream movement of the fastener chain, the chain pressing mechanism is operated by the control mechanism when the element at the downstream end (downstream end element) of the fastener chain (upstream fastener chain) on the upstream side of the spacer is closer to the 1 st stopper, and presses the fastener chain on the upstream side of the spacer to the downstream side, so that the element at the downstream end is abutted against the 1 st stopper. Thereby, the slide fastener chain is restricted from moving further downstream, and the upstream slide fastener chain is positioned at the injection position of the opening piece in the conveying direction. However, in this case, the perforated portion may be deformed or the wick may be inclined, and such deformation or the like may be corrected by the perforated portion guide portion.

In one embodiment of the present invention, the upper and lower molds are further used for injection molding the upper stopper, and the positioning mechanism for the fastener chain includes a 2 nd stopper capable of stopping the fastener element at the upstream end of the fastener chain on the downstream side of the spacer and restricting the fastener chain on the downstream side of the spacer from moving toward the upstream side, a chain pulling mechanism for pulling the fastener chain on the downstream side of the spacer toward the upstream side so that the fastener element at the upstream end abuts against the 2 nd stopper, and a position fixing mechanism for fixing the position of the fastener chain on the upstream side of the chain pulling mechanism when the chain pulling mechanism is operated. In this aspect, the upper die and the lower die can simultaneously perform injection molding of the opening piece and the upper stopper portion. The 2 nd blocking member can be provided to the lower die or the upper die. After the upstream side fastener chain is positioned at the injection position of the opener by the chain pushing mechanism and deformation of the perforated portion or the like is corrected by the perforated portion guide portion, the chain pulling mechanism pulls the fastener chain (downstream side fastener chain) downstream of the spacer portion toward the upstream side, and the fastener element at the upstream side (upstream side end fastener element) is abutted against the 2 nd stopper. Thereby, the downstream side fastener chain is positioned at the injection molding position of the upper stopper portion. When the downstream side fastener chain is pulled to the upstream side by the chain pulling mechanism, the position fixing mechanism fixes the position of the fastener chain on the upstream side than the chain pulling mechanism so that the upstream side fastener chain is not pulled to the downstream side.

In one embodiment of the present invention, the slide fastener chain includes an upper stopper side guide portion that guides the core rope near the injection position of the upper stopper in the slide fastener chain. The upper stopper side guide portion can correct the lateral deviation of the core rope near the injection position of the upper stopper in the slide fastener chain.

According to another aspect of the present invention, there is provided a method for positioning a fastener chain, including a step of positioning the fastener chain in a conveying direction, and a step of passing a perforated portion guide through a perforated portion of the fastener chain and displacing the perforated portion guide to the left and right outside. According to the present invention, when the fastener chain is positioned at the injection molding position of the opener or the like in the conveying direction, the perforated portion guide portion is passed through the perforated portion of the fastener chain, and then the perforated portion guide portion is displaced laterally outward. This can correct the deformation of the perforated portion or the inclination of the core rope.

Effects of the invention

In the present invention, when the fastener chain is positioned at the injection position of the opener, the left and right perforated portion guides are passed through the perforated portions of the fastener chain, and then the perforated portion guides are displaced laterally outward, whereby deformation of the perforated portions or inclination of the core rope can be corrected and suppressed.

Drawings

Fig. 1 is a block diagram schematically showing a slide fastener manufacturing apparatus 100.

Fig. 2 is a flowchart showing a manufacturing process of the slide fastener manufacturing apparatus 100.

Fig. 3 is a plan view of the FC10 in which the perforated portion 13 is formed, taken in the longitudinal direction thereof.

Fig. 4 is a plan view similar to fig. 3 showing FC10 of the fastener element row 2 of the left fastener tape 1 through which the slider 3 is single-sided.

Fig. 5 is a plan view similar to fig. 3 showing the FC10 in which the socket body 20 with the socket rod, the plunger 21, and the upper stopper 22 are injection-molded as the opening members.

Fig. 6 is a partial cross-sectional side view showing a partial structure of the positioning mechanism 200 of the FC10 according to the present invention.

Fig. 7 is a plan view of FC10 at timing of fig. 6.

Fig. 8 is a front view of the perforated portion guide 260 as seen from arrow A-A of fig. 7.

Fig. 9 is a partial cross-sectional side view showing the timing at which the FC10 descends onto the lower die 220 from the timing of fig. 6.

Fig. 10 is a front view similar to fig. 8 showing the perforated portion guide 260 at the point of upward projection from the perforated portion 13 of the FC 10.

Fig. 11 is a partial cross-sectional side view similar to fig. 9 showing a timing when the chain pushing mechanism 230 abuts the 1 st stopper 221 of the lower die 220 against the downstream side end element 2b of the FC 10.

Fig. 12 is a plan view similar to fig. 7 showing FC10 at the time of fig. 11.

Fig. 13 is an enlarged view of block B of fig. 12.

Fig. 14 is a plan view similar to fig. 7 showing a timing of the perforated portion guide 260 being displaced laterally outward from the timing of fig. 12.

Fig. 15 is an enlarged view of the frame C of fig. 14.

Fig. 16 is a front view similar to fig. 8 showing the perforated portion guide 260 at the timing of fig. 14 and 15.

Fig. 17 is a partial cross-sectional side view showing the timing of lowering the upper die 210.

Fig. 18 is a plan view similar to fig. 7 showing the timing of contact of the chain pulling mechanism 240 with the FC 10.

Fig. 19 is a plan view similar to fig. 12 showing a modification of the upper stopper side guide portion.

Fig. 20 is an enlarged view of a block D of fig. 19.

Fig. 21 is an enlarged view similar to fig. 20 showing the timing of the displacement of the upper stopper-side guide 271 to the left and right.

Description of the reference numerals

1. Fastener tape 1a core rope

2. Fastener element row 2a fastener element

2B downstream side end element 2c upstream side end element

3 Slider 10 zipper chain (FC)

11. Spacer 12 auxiliary film

13. Perforated part 20 socket body

21. Upper stop portion of plunger 22

20C 1 st cavity 21C 2 nd cavity

22C 3 rd cavity 100 zipper manufacturing device

110 1 St device 111 interval generation mechanism

112 Film bonding mechanism 113 perforating mechanism

120 Nd equipment 121 chain dividing mechanism

122 Pull head single-side punching mechanism 123 upper stop part and opening part injection molding mechanism

130 3 Rd device 131 chain combined mechanism

132 Cut-off mechanism 140 conveying mechanism

141 1 St conveying roller 142 2 nd conveying roller

200 Positioning mechanism 210 upper die of zipper chain

220 Lower die 221 st stop

222 Nd stop 230 chain pushing mechanism

240. Chain pulling mechanism 241 pulling member

250. Guide part of punching part of position fixing mechanism 260

262 Guide pieces 270, 271 upper stopper side guide parts

Detailed Description

Fig. 1 is a block diagram schematically showing a slide fastener manufacturing apparatus 100. Fig. 2 is a flowchart showing a manufacturing process of the slide fastener manufacturing apparatus 100. Referring to fig. 1, the slide fastener manufacturing apparatus 100 includes a1 st device 110, a 2 nd device 120, and a 3 rd device 130. The slide fastener manufacturing apparatus 100 further includes a conveying mechanism 140 for conveying the continuous fastener chain (hereinafter referred to as "FC") 10 from the upstream side to the downstream side to the 1 st device 110, then to the 2 nd device 120, and then to the 3 rd device 130. The slide fastener manufacturing apparatus 100 is used to continuously manufacture a slide fastener as a finished product by performing various processes or the like on the FC10 while conveying the FC10 from the upstream side to the downstream side. The conveyance mechanism 140 can also temporarily move the FC10 to the upstream side.

A1 st buffer 150 is provided between the 1 st device 110 and the 2 nd device 120. In addition, a2 nd buffer 160 is provided between the 2 nd device 120 and the 3 rd device 130. The 1 st buffer unit 150 adjusts the supply of the FC10 to the 2 nd device 120 while retaining the FC10 between the 1 st device 110 and the 2 nd device 120 having different processing cycles, and causes the 1 st device 110 and the 2 nd device 120 to be linked. Similarly, buffer 2 160 controls the supply of FC10 to 3 rd device 130 while retaining FC10 between 2 nd device 120 and 3 rd device 130 having different processing cycles, and causes 2 nd device 120 and 3 rd device 130 to be linked.

Fig. 3 is a plan view of the FC10 in which the perforated portion 13 is formed, taken in the longitudinal direction thereof. Fig. 4 is a plan view similar to fig. 3 showing FC10 of the fastener element row 2 of the left fastener tape 1 through which the slider 3 is single-sided. Fig. 5 is a plan view similar to fig. 3 showing the FC10 in which the socket body 20 with the socket rod, the plunger 21, and the upper stopper 22 are injection-molded as the opening members. The upper side of the paper surface of fig. 3 to 5 is upstream in the conveyance direction of FC10, and the lower side of the paper surface of fig. 3 to 5 is downstream in the conveyance direction.

The FC10 supplied to the fastener manufacturing apparatus 100 includes a pair of left and right long fastener tapes 1, and a fastener element row 2 including a plurality of fastener elements 2a injection-molded or extrusion-molded at opposite edge portions of each fastener tape 1. In the present embodiment, the element 2a is formed of thermoplastic resin such as nylon, polyacetal, polyamide, polypropylene, polybutylene terephthalate, or the like, for example, but is not limited thereto.

1 St device

The 1 st apparatus 110 is provided with a gap generating mechanism 111, a film bonding mechanism 112, and a punching mechanism 113 in this order from the upstream side to the downstream side. The interval generating means 111 partially removes the element rows 2 at predetermined intervals in the longitudinal direction of the FC10, and forms the interval portions 11 between the opposite edge portions of the left and right fastener tapes 1. A thick core rope 1a as a reinforcing portion remains at the opposite edge portion of the fastener tape 1 corresponding to the spacer 11 from which the element row 2 is removed. The core rope 1a can improve the adhesion strength of the fastener element 2a and the like to the fastener tape 1. The film bonding mechanism 112 bonds the auxiliary film 12 to the front and rear surfaces of the fastener tape 10 corresponding to a portion substantially halfway upstream of the spacer 11. The auxiliary film 12 can improve the adhesion of the molten resin and strengthen both longitudinal end portions of the slide fastener as a final product when the insert pin 21 and the insert holder body 20 are injection molded. The perforation means 113 forms a rectangular perforation portion 13 on the downstream side in the auxiliary film 12 of the fastener tape 1. When forming the perforated portion 13, the perforation means 113 perforates 2 through holes 14 simultaneously at the respective opposite edge portions of the left and right fastener tapes 1 on the upstream side of the perforated portion 13 in the auxiliary film 12. When the insert pin 21 and the receptacle body 20 are injection molded, the molten resin penetrates the through hole 14, and the connection between the insert pin 21 and the receptacle body 20 at the front and back of the fastener tape 10 can be improved.

2 Nd device

The 2 nd apparatus 120 is provided with a chain dividing mechanism 121, a slider one-side feed-through mechanism 122, an upper stopper portion and an opening injection mechanism 123, and a chain closing mechanism 124 in this order from the upstream side to the downstream side. The chain dividing mechanism 121 releases the engagement state between the element rows 2 of the right and left fastener tapes 1, and separates the FC10 from the right and left. The slider single-side threading mechanism 122 is configured to attach, i.e., single-side-thread, the slider 3 to the fastener element row 2 of the fastener tape 1 on the left and right sides (left side in fig. 4) from the threading portion 13. The upper stopper and opener injection mechanism 123 injection-molds the socket body 20 and the insert pin 21 and 2 upper stoppers 22 to the FC10 through which the slider 3 is inserted on one side. The positioning mechanism 200 (see fig. 6, 7, etc.) of the FC10 according to the present invention is used for positioning the FC10 at the injection molding positions of the socket body 20, the plunger 21, and the upper stopper portion 22 in the upper stopper portion and opening injection molding mechanism 123, but is not limited thereto, and may be used for positioning in a mechanism in which only the socket body 20 and the plunger 21 are injection molded, for example. The chain closing mechanism 124 causes the fastener element rows 2 of the left and right fastener tapes 1, to which the socket body 20, the insert pin 21, and the upper stopper 22 are injection-molded, to mesh with each other, thereby closing the FC10.

3 Rd device

The 3 rd apparatus 130 includes an upstream-side chain combining mechanism 131 and a downstream-side cutting mechanism 132. The chain combining mechanism 131 combines the socket body 20 and the plunger 21. The cutting mechanism 132 cuts the FC10 in the width direction at a portion corresponding to the perforated portion 13. The slide fastener manufacturing apparatus 100 continuously manufactures slide fasteners as described above.

Fig. 6 is a partial cross-sectional side view showing a partial structure of a positioning mechanism (hereinafter also simply referred to as "positioning mechanism") 200 of the FC10 according to the present invention. Fig. 7 is a plan view of FC10 at the timing of fig. 6. The left side in the sheet of fig. 7 is the upstream side in the conveying direction, and the right side is the downstream side in the conveying direction. The positioning mechanism 200 includes a1 st conveying roller 141, a 2 nd conveying roller 142, an upper die 210, a lower die 220, a chain pushing mechanism 230, a chain pulling mechanism 240, a position fixing mechanism 250, a perforated portion guide portion 260, an upper stopper portion side guide portion 270 (see fig. 7), and a control mechanism (not shown). The 1 st conveying roller 141 and the 2 nd conveying roller 142 are components of the conveying mechanism 140 in the slide fastener manufacturing apparatus 100, and move the FC10 to the downstream side or the upstream side in the conveying direction. The 1 st conveying roller 141 is disposed in pairs with the driven roller on the upstream side of the upper die 210 and the lower die 220. The 2 nd conveying roller 142 is disposed in pairs with the driven roller on the downstream side of the upper die 210 and the lower die 220. The chain pushing mechanism 230, the chain pulling mechanism 240, the position fixing mechanism 250, the perforated portion guide 260, and the upper stopper portion side guide 270 are a pair of right and left mechanisms or members that operate the right and left fastener tapes 1 of the FC10, respectively, but only one of the right and left is denoted by a reference numeral in the drawing.

The upper die 210 and the lower die 220 are components of the upper stopper and the open-element injection mechanism 123 in the slide fastener manufacturing apparatus 100. In the present embodiment, the upper die 210 and the lower die 220 are used to simultaneously injection mold the socket body 20, the plunger 21, and the 2 upper stopper portions 22. The upper mold 210 and the lower mold 220 include a1 st cavity 20C corresponding to the socket body 20, a2 nd cavity 21C corresponding to the plunger 21, and a 3 rd cavity 22C corresponding to the upper stopper 22. The 1 st cavity 20C and the 2 nd cavity 21C are targets (targets) for positioning the FC10 in the open-piece injection position. The 3 rd cavity 22C is a target for positioning the FC10 in the upper stop injection molding position. The 1 st cavity 20C, the 2 nd cavity 21C, and the 3 rd cavity 22C are stationary without moving in the conveying direction.

The lower die 220 includes a1 st stopper 221 and a2 nd stopper 222. When the FC10 moves downstream, the 1 st stopper 221 receives a downstream-side element (hereinafter referred to as "downstream-side end element") 2b of the FC10 on the upstream side of the spacer 11 (hereinafter referred to as "upstream-side FC") and restricts further downstream movement of the FC 10. When the FC (hereinafter referred to as "downstream FC") 10 on the downstream side of the spacer 11 moves toward the upstream side, the 2 nd stopper 222 blocks the element 2c on the upstream side end (hereinafter referred to as "upstream side end element") in the downstream side FC10, and restricts the movement of the downstream side FC10 further toward the upstream side. The 1 st stopper 221 and the 2 nd stopper 222 are formed stepwise on the upstream side and the downstream side of the upper surface of the lower die 220.

The structure of the positioning mechanism 200 will be further described below, and the positioning process of the FC10 by the positioning mechanism 200 will be described below. Fig. 6 and 7 show the timing at which the downstream-side end element 2b of the FC10 approaches the 1 st stopper 221 of the lower die 220 during downstream movement by the 1 st conveying roller 141 and the 2 nd conveying roller 142. At this time, the upper die 210 and the lower die 220 are located at the initial positions. When the downstream-side end element 2b of the FC10 approaches the 1 st stopper 221 of the lower die 220, a sensor (not shown) detects the spacer 11 or the like of the FC 10. Based on the detection signal, the control means stops the 1 st conveying roller 141 and the 2 nd conveying roller 142, starts the lifting of the lower die 220 from the initial position, and further operates the chain pressing means 230. Accordingly, the FC10 stops moving toward the downstream side, and the downstream side element 2b is stopped near the 1 st stopper 221 (see fig. 9).

Fig. 8 is a front view of the perforated portion guide 260 as seen from arrow A-A of fig. 7. The perforated portion guide 260 is a pair of right and left members, which are not shown, but are assembled to the lower die 220 so as to be displaceable right and left. Each perforated portion guide 260 includes a base 261 and a guide piece 262 extending upward from the base 261. Each guide piece 262 has an inclined surface 263 inclined upward and inward in the left-right direction. In fig. 8, the perforated portion guide 260 is positioned at the initial position, and the upper end of the guide piece 262 is positioned below the FC 10. As is clear from fig. 7, at the timing of fig. 8, the perforated portion guide 260 is located slightly downstream of the perforated portion 13.

Fig. 9 is a partial cross-sectional side view showing the timing at which the FC10 descends onto the lower die 220 from the timing of fig. 6. The FC10 is lowered from the initial position to the position supported by the lower die 220 shown in fig. 9 by chain guides (not shown) disposed on the upstream side and the downstream side of the upper die 210 and the lower die 220, respectively. At this time, the guide piece 262 of the perforated portion guide 260 is pressed against the lower surface of the FC 10. In the present embodiment, the lower die 220 does not move in the vertical direction, but the lower die 220 may be configured to rise with respect to the FC 10. The lower die 220 is movable in the left-right direction (the direction of the front-depth of the paper surface in fig. 9 and the like), and is movable to the depth of the paper surface in fig. 9 and the like after injection molding is performed on the socket body 20, the plunger 21, and the upper stopper 22. At the timing of fig. 9, FC10 stops moving downstream, and downstream-side end element 2b approaches 1 st stopper 221. From the timing of fig. 7, the FC10 is moved downstream by the chain pressing mechanism 230, and the guide piece 262 of the perforated portion guide 260 pressed against the lower surface of the FC10 protrudes upward through the perforated portion 13 of the FC 10. Fig. 10 is a front view similar to fig. 8 showing the perforated portion guide 260 at the point of upward projection from the perforated portion 13 of the FC 10. When the guide piece 262 of the perforated portion guide 260 protrudes upward from the perforated portion 13 of the FC10, even if the guide piece 262 touches the edge of the perforated portion 13, the edge slides on the inclined surface 263 of the guide piece 262, so that the guide piece 262 smoothly protrudes upward of the FC 10.

Fig. 11 is a partial cross-sectional side view similar to fig. 9 showing a timing when the chain pushing mechanism 230 abuts the 1 st stopper 221 of the lower die 220 against the downstream side end element 2b of the FC 10. Fig. 12 is a plan view similar to fig. 7 showing FC10 at the time of fig. 11. The chain pushing mechanism 230 operates during the descent of the FC10 toward the lower die 220. The chain pressing mechanism 230 first descends from the initial position shown in fig. 9, presses the upstream FC10 against the lower die 220, and then moves the upstream FC10 downstream while being pressed against the lower die 220. Thereby, the FC10 is pushed toward the downstream side, and the downstream side end element 2b abuts against the 1 st stopper 221. Thereby, the FC10 is positioned at the opening injection position in the conveying direction. However, in this case, the perforated portion 13 may be deformed or the wick 1a may be inclined.

Fig. 13 is an enlarged view of block B of fig. 12. Fig. 13 shows an example of the case where the perforated portion 13 is deformed and the core rope 1a is inclined at the time when the FC10 is positioned at the opening injection position in the conveying direction. Reference numeral 1b in fig. 13 is the edges of the left and right inner ends of the upstream side of the perforated portion 13. The perforated portion 13 is deformed so that the edge 1b is slightly deviated from the 2 nd cavity 21C, and the core wire 1a is inclined with respect to the longitudinal direction of the 2 nd cavity 21C. At the timing of fig. 13, the perforated portion guide 260 is located at the up-down position shown in fig. 10 with respect to the FC10, and the guide piece 262 is away from the left and right outer sides of the perforated portion 13. From the timing of fig. 9 to the timing of fig. 12 and 13, FC10 is slightly displaced up to the opening injection molding position on the downstream side, but the front view of the perforated portion guide portion 260 and FC10 is the same at the timing of fig. 9 and the timing of fig. 12 and 13, as shown in fig. 10. By displacing the perforated guide 260 laterally outward from the timing of fig. 12 and 13, the deflection of the perforated portion 13 and the core rope 1a can be corrected.

The chain pressing mechanism 230 presses the downstream-side end element 2b of the FC10 against the 1 st stopper 221 of the lower die 220, and the control mechanism displaces the perforated portion guide portion 260 to the left and right outside upon positioning the FC10 at the open-end injection position in the conveying direction. Fig. 14 is a plan view similar to fig. 7 showing a timing of the perforated portion guide 260 being displaced laterally outward from the timing of fig. 12. Fig. 15 is an enlarged view of the frame C of fig. 14. Fig. 16 is a front view similar to fig. 8 showing the perforated portion guide 260 at the timing of fig. 14 and 15. When the perforated portion guide 260 is displaced to the left and right outer stop position, the guide piece 262 presses the left and right outer sides of the perforated portion 13 to the left and right outer sides, and the perforated portion 13 and the core rope 1a are pulled to the left and right outer sides, so that the deflection of the perforated portion 13 and the core rope 1a is adjusted. Thus, the edge 1b of the perforated portion 13 is accommodated in the 2 nd cavity 21C, and the core rope 1a is along the longitudinal direction of the 2 nd cavity 21C. Thereby, the positioning of the upstream side FC10 in the conveying direction and the left-right direction to the open-piece injection position is completed. As soon as the positioning of the upstream side FC10 is completed, the control mechanism lowers the upper die 210.

In the present embodiment, the upper stopper side guide 270 is formed in the lower die 220, but may be formed in the upper die 210 or may be formed in both the upper die 210 and the lower die 220. The upper stopper side guide 270 is lowered onto the lower die 220 by the upstream and downstream side chain guides (not shown), and the upper stopper side guide 270 protrudes upward from between the right and left fastener tapes 1 of the downstream side FC 10. The upper stopper-side guide 270 has an inclined surface (not shown) similar to the perforated-portion guide 260. The upper stopper-side guide 270 guides the core rope 1a of the downstream FC10, which is deviated to the left and right inside from the predetermined position, to the predetermined position on the left and right outside (see fig. 12 and 14). The upper stopper-side guide 270 is different from the perforated-portion guide 260 in that it is not displaced in the left-right direction, but may be displaceable in the left-right direction as will be described later.

Fig. 17 is a partial cross-sectional side view showing the timing of lowering the upper die 210. The chain pulling mechanism 240 and the position fixing mechanism 250 are assembled in the upper die 210. The chain pulling mechanism 240 includes a pulling member 241 protruding downward from the upper die 210, a recess 242 provided in the lower die 220 and capable of accommodating the pulling member 241, a spring 243 elastically supporting the pulling member 241 on the upper die 210 side, and an accommodating portion 244 provided in the upper die 210 and accommodating the spring 243 and an upper half portion of the pulling member 241. In the chain pulling mechanism 240, when the upper die 210 is lowered relative to the lower die 220, the pulling member 241 carries the FC10 into the recess 242. Thereby, the downstream side FC10 is pulled toward the upstream side, and the upstream side end element 2c abuts against the 2 nd stopper 222 of the lower die 220. Thereby, the downstream side FC10 is positioned at the upper stopper injection position.

The position fixing mechanism 250 is elastically supported by a spring 251 on the upper die 210 side. The position fixing mechanism 250 protrudes slightly downward from the pulling member 241 of the chain pulling mechanism 240 at the initial position shown in fig. 9. Therefore, when the upper die 210 is lowered, the position fixing mechanism 250 contacts the FC10 earlier than the chain pulling mechanism 240, and fixes the position of the upstream FC10 to the lower die 220. Fig. 18 is a plan view similar to fig. 7 showing the timing of contact of the chain pulling mechanism 240 with the FC 10. Immediately after the timing of fig. 18, the chain pulling mechanism 240 pulls the downstream side FC10 to the upstream side, and at this time, the position fixing mechanism 250 fixes the position of the FC10 on the upstream side than the chain pulling mechanism 240, so the upstream side FC10 is not pulled to the downstream side.

Fig. 19 is a plan view similar to fig. 12 showing a modification of the upper stopper side guide portion. Fig. 20 is an enlarged view of a block D of fig. 19. The upper stopper side guide 270 is not displaced in the left-right direction, but the upper stopper side guide 271 shown in fig. 19 and 20 can be displaced in the left-right direction. At the timing of fig. 19 and 20, the upper stopper-side guide 271 protrudes upward from between the left and right core ropes 1a of the FC10 after lowering. Then, the upper stopper-side guide 271 is displaced to the left and right outer stop positions. Fig. 21 is an enlarged view similar to fig. 20 showing the timing of the displacement of the upper stopper-side guide 271 to the left and right. By the displacement of the upper stopper side guide portion 271 to the left and right outside, the deflection of the core rope 1a is adjusted.

Claims (5)

1. A positioning mechanism of a slide fastener chain, the positioning mechanism (200) of the slide fastener chain being used for positioning the slide fastener chain (10) at an injection molding position of an opening member (20, 21), characterized in that:

The slide fastener chain comprises left and right perforated portion guides (260), and the left and right perforated portion guides (260) can pass through the perforated portion (13) of the slide fastener chain (10) and can be displaced to the left and right outer sides.

2. The fastener chain positioning mechanism according to claim 1, comprising:

an upper die (210) and a lower die (220) for injection molding the opening members (20, 21);

A 1 st stopper (221) capable of blocking a fastener element (2 b) at a downstream end of a fastener chain (10) on an upstream side of the spacer (11) and restricting movement of the fastener chain (10) on a downstream side, and

And a chain pressing mechanism (230) that presses the fastener chain (10) on the upstream side of the spacer (11) toward the downstream side, and that presses the fastener element (2 b) on the downstream side against the 1 st stopper (221).

3. The fastener chain positioning mechanism according to claim 2, comprising:

The upper die (210) and the lower die (220) are also used for carrying out injection molding on the upper stop part (22),

The positioning mechanism (200) for a fastener chain comprises:

A 2 nd stopper (222) capable of blocking an upstream-side element (2 c) of the fastener chain (10) on the downstream side of the spacer (11) and restricting the movement of the fastener chain (10) on the downstream side of the spacer (11) toward the upstream side;

a chain pulling mechanism (240) for pulling the fastener chain (10) on the downstream side of the spacer (11) toward the upstream side so that the element (2 c) on the upstream side abuts against the 2 nd stopper (222), and

And a position fixing mechanism (250) for fixing the position of the slide fastener chain (10) on the upstream side of the chain pulling mechanism (240) when the chain pulling mechanism (240) is operated.

4. The positioning mechanism of a fastener chain according to any one of claims 1 to 3, characterized in that:

Comprises upper stopper side guide parts (270, 271), wherein the upper stopper side guide parts (270, 271) guide a core rope (1 a) near the injection position of an upper stopper part (22) in the zipper chain (10).

5. A method of positioning a fastener chain, comprising:

a step of positioning the fastener chain (10) in the conveying direction, and

And a step of passing a perforated portion guide portion (260) through the perforated portion (13) of the fastener chain (10) and displacing the perforated portion guide portion (260) laterally outward.