Positioning mechanism and positioning method for zipper chain

Abstract

Provided is a fastener chain positioning mechanism capable of correcting and suppressing deformation of a perforated portion or inclination of a core cord. The invention relates to a positioning mechanism for a zipper chain, which is used for positioning the zipper chain at an injection molding position of an opening piece. The positioning mechanism of the zipper chain is provided with a left-right punching part guide part which can penetrate through the punching part of the zipper chain to move towards the left-right outer side. In addition, the positioning mechanism of the zipper chain comprises an upper mold and a lower mold which are used for performing injection molding on the opening piece; a first stopper that is capable of stopping an element at the downstream end of the fastener chain upstream of the spacer and restricting the movement of the fastener chain to the downstream side; and a chain pressing mechanism that is capable of pressing the fastener chain upstream of the spacer toward the downstream side and causing the element at the downstream side end to abut against the first stopper.

Description

Technical Field

[0001] The present invention relates to a positioning mechanism and a positioning method for a zipper chain, and in particular to a positioning mechanism and a positioning method for a zipper chain for positioning the zipper chain at an injection molding position of an opening member or the like. Background Art

[0002] There is a case where an opening piece or a stopper is injection molded during the process of continuously manufacturing a zipper based on a continuous zipper chain. In this case, the zipper chain needs to be accurately positioned at the injection molding position. An example of a positioning mechanism for this purpose is described in the specification of Chinese Patent Application Publication No. 115336843 (Patent Document 1).

[0003] However, according to the technology described in Patent Document 1, even if the zipper chain is positioned at the injection position of the opening part etc. in the conveying direction, there is a case where the perforated portion of the zipper chain is deformed or the core rope is tilted. In such a case, the opening part etc. cannot be formed well, which may result in a defective product. In particular, deformation of the perforated portion is likely to occur in the following case: the length of the auxiliary film bonded to the zipper chain before the perforated portion is formed is small along the length direction of the zipper chain.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Chinese Patent Application Publication No. 115336843 Summary of the invention

[0007] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a positioning mechanism for a slide fastener chain that can correct and suppress deformation of a perforated portion or inclination of a core cord.

[0008] In order to solve the above-mentioned problem, according to one aspect of the present invention, a positioning mechanism for a zipper chain is provided, which is used to position the zipper chain at the injection molding position of the opening piece, and the positioning mechanism for the zipper chain has left and right perforated portion guide portions, and the left and right perforated portion guide portions can pass through the perforated portion of the zipper chain and move to the left and right outer sides.

[0009] According to the present invention, when the zipper chain is positioned at the injection molding position of the opening part, the left and right perforated guide parts are passed through the perforated part of the zipper chain, and then each perforated guide part is displaced to the left and right outer sides. Thus, even if the perforated part is deformed, it can be corrected. In addition, even if the core rope near the perforated part is tilted, it can be corrected. In this specification, "left and right outer sides" refers to the side where the left and right perforated guide parts are away from each other in the width direction of the zipper chain.

[0010] One embodiment of the present invention includes: an upper mold and a lower mold, which are used to perform injection molding on the opening member; a first blocking member, which can block the chain elements at the downstream end of the zipper chain on the upstream side of the spacer to limit the movement of the zipper chain to the downstream side; and a chain pushing mechanism, which pushes the zipper chain on the upstream side of the spacer to the downstream side so that the chain elements at the downstream end abut against the first blocking member. As the opening member, a socket body with a socket rod and an insert rod can be listed, but it is not limited to this. The first blocking member can be provided in the lower mold or the upper mold. In addition, the perforated portion guide is assembled to the lower mold or the upper mold in a manner that can be displaced left and right. While the zipper chain is moving toward the downstream side, the chain pushing mechanism operates through the control mechanism when the chain teeth at the downstream side end (downstream side end chain teeth) of the zipper chain (upstream side zipper chain) that is upstream of the spacer portion approaches the first blocking member, and pushes the zipper chain that is upstream of the spacer portion toward the downstream side, so that the chain teeth at the downstream side end abut against the first blocking member. Thus, the zipper chain is restricted from further moving toward the downstream side, and the upstream side zipper chain is positioned at the injection molding position of the opening member in the conveying direction. However, at this time, there is a situation where the perforated portion is deformed or the core rope is tilted, and such deformation is corrected by the perforated portion guide portion.

[0011] In one embodiment of the present invention, the upper mold and the lower mold are also used for injection molding the upper stop portion, and the positioning mechanism of the zipper chain includes: a second blocking member, which can block the chain element at the upstream end of the zipper chain on the downstream side of the spacer, and restrict the zipper chain on the downstream side of the spacer from moving upstream; a chain pulling mechanism, which pulls the zipper chain on the downstream side of the spacer toward the upstream side, so that the chain element at the upstream end abuts against the second blocking member; and a position fixing mechanism, which fixes the position of the zipper chain on the upstream side of the chain pulling mechanism when the chain pulling mechanism is working. In this form, the upper mold and the lower mold can simultaneously perform injection molding on the opening member and the upper stop portion. The second blocking member can be set in the lower mold or the upper mold. After the chain pushing mechanism positions the upstream zipper chain at the injection molding position of the opening part, and the deformation of the perforated part is corrected by the perforated part guide part, the chain pulling mechanism pulls the zipper chain (downstream zipper chain) on the downstream side of the spacer toward the upstream side, so that the chain teeth at the upstream end (upstream end chain teeth) abut against the second blocking member. Thus, the downstream zipper chain is positioned at the injection molding position of the upper stop. When the chain pulling mechanism pulls the downstream zipper chain toward the upstream side, the position fixing mechanism fixes the position of the zipper chain on the upstream side of the chain pulling mechanism, so that the upstream zipper chain will not be pulled toward the downstream side.

[0012] In one embodiment of the present invention, there is an upper stop side guide portion which guides the core rope near the injection position of the upper stop in the zipper chain. The upper stop side guide portion can correct the left-right deviation of the core rope near the injection position of the upper stop in the zipper chain.

[0013] According to another aspect of the present invention, a method for positioning a zipper chain is provided, comprising: a step of positioning the zipper chain in a conveying direction; and a step of passing a perforated portion guide portion through the perforated portion of the zipper chain and displacing the perforated portion guide portion to the left and right outer sides. According to the present invention, when the zipper chain is positioned at an injection molding position of an opening member or the like in the conveying direction, the perforated portion guide portion is passed through the perforated portion of the zipper chain, and then the perforated portion guide portion is displaced to the left and right outer sides. Thus, deformation of the perforated portion or inclination of the core rope can be corrected.

[0014] Effects of the Invention

[0015] In the present invention, when the zipper chain is positioned at the injection molding position of the opening part, the left and right perforated portion guides are passed through the perforated portion of the zipper chain, and then each perforated portion guide is displaced to the left and right outer sides, thereby correcting and suppressing the deformation of the perforated portion or the inclination of the core rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a block diagram schematically showing the zipper manufacturing apparatus 100 .

[0017] Figure 2 It is a flowchart which shows the manufacturing process of the zipper manufacturing apparatus 100.

[0018] Figure 3 This is a plan view showing FC10 having a perforated portion 13 cut out in the longitudinal direction.

[0019] Figure 4 The slider 3 is inserted through the FC10 on the element row 2 of the left fastener tape 1 from one side. Figure 3 Same top view.

[0020] Figure 5 The FC10 is a molded product having a socket body 20 with a socket rod as an opening part, an insert rod 21, and an upper stopper 22. Figure 3 Same top view.

[0021] Figure 6 It is a partial cross-sectional side view showing a partial structure of the positioning mechanism 200 of the FC10 according to the present invention.

[0022] Figure 7 yes Figure 6 A top view of FC10 at the time.

[0023] Figure 8 is from Figure 7 A front view of the punching portion guide portion 260 as viewed along arrow AA.

[0024] Fig. 9 It means FC10 from Figure 6 A partial cross-sectional side view of the moment when the mold 220 begins to descend onto the lower mold 220.

[0025] Fig.10 The punching portion guide 260 is shown at the time of protruding upward from the punching portion 13 of the FC10. Figure 8 Same main view.

[0026] Fig.11 The timing at which the chain pressing mechanism 230 causes the downstream end element 2b of the FC10 to abut against the first stopper 221 of the lower die 220 is shown. Fig. 9 Same partial cutaway side view.

[0027] Fig.12 Yes means Fig.11 The moment of FC10 with Figure 7 Same top view.

[0028] Fig.13 yes Fig.12 An enlarged view of box B.

[0029] Fig.14 It means that the perforation guide 260 is Fig.12 The moment when it starts to move to the left and right sides and Figure 7 Same top view.

[0030] Fig.15 yes Fig.14 An enlarged view of box C of FIG.

[0031] Fig.16 Yes means Fig.14 and Fig.15 The moment of the punching portion guide portion 260 and Figure 8 Same main view.

[0032] Fig.17 It is a partial cross-sectional side view showing the moment when the upper mold 210 descends.

[0033] Fig.18 is a time period indicating the time when the chain pulling mechanism 240 contacts the FC10. Figure 7 Same top view.

[0034] Fig.19 is a diagram showing a modified example of the upper stopper side guide portion. Fig.12 Same top view.

[0035] Fig. 20 yes Fig.19 An enlarged view of box D of FIG.

[0036] Fig.21 is a time that indicates the displacement of the upper stopper side guide 271 to the left and right outer sides. Fig. 20 The same enlarged image.

[0037] Description of Reference Numerals

[0038] 1 zipper tape 1a core rope

[0039] 2 tooth row 2a tooth

[0040] 2b Downstream side end chain tooth 2c Upstream side end chain tooth

[0041] 3 sliders 10 zipper chains (FC)

[0042] 11 spacer 12 auxiliary film

[0043] 13 perforation 20 socket body

[0044] 21 Insert rod 22 Upper stop

[0045] 20C 1st cavity 21C 2nd cavity

[0046] 22C 3rd Cavity 100 Zipper Manufacturing Device

[0047] 110 1st device 111 interval generating mechanism

[0048] 112 film bonding mechanism 113 perforation mechanism

[0049] 120 Second device 121 Chain splitting mechanism

[0050] 122 Slider head single-side penetration mechanism 123 Upper stop and opening part injection molding mechanism

[0051] 130 3rd equipment 131 Chain combination mechanism

[0052] 132 cutting mechanism 140 conveying mechanism

[0053] 141 1st conveying roller 142 2nd conveying roller

[0054] 200 zipper chain positioning mechanism 210 upper mold

[0055] 220 lower die 221 first stopper

[0056] 222 second blocking member 230 chain pushing mechanism

[0057] 240 Chain pulling mechanism 241 Pulling component

[0058] 250 Position fixing mechanism 260 Perforating portion guide portion

[0059] 262 guide piece 270, 271 upper stop portion side guide portion DETAILED DESCRIPTION

[0060] Figure 1 It is a block diagram schematically showing the zipper manufacturing apparatus 100 . Figure 2 2 is a flowchart showing the manufacturing process of the zipper manufacturing device 100. Figure 1 The zipper manufacturing apparatus 100 includes a first device 110, a second device 120, and a third device 130. In addition, the zipper manufacturing apparatus 100 includes a conveying mechanism 140 for conveying a continuous zipper chain (hereinafter referred to as "FC") 10 from the upstream side to the downstream side to the first device 110, then to the second device 120, and then to the third device 130. The zipper manufacturing apparatus 100 is used to continuously manufacture a zipper as a finished product while conveying FC10 from the upstream side to the downstream side, performing various processes on FC10. The conveying mechanism 140 can also temporarily move FC10 to the upstream side.

[0061] A first buffer 150 is provided between the first device 110 and the second device 120. In addition, a second buffer 160 is provided between the second device 120 and the third device 130. The first buffer 150 allows FC10 to stay between the first device 110 and the second device 120 having different processing cycles, and adjusts the supply of FC10 to the second device 120, so that the first device 110 and the second device 120 are linked. Similarly, the second buffer 160 allows FC10 to stay between the second device 120 and the third device 130 having different processing cycles, and adjusts the supply of FC10 to the third device 130, so that the second device 120 and the third device 130 are linked.

[0062] Figure 3 This is a plan view showing FC10 having a perforated portion 13 cut out in the longitudinal direction. Figure 4 The slider 3 is inserted through the FC10 on the element row 2 of the left fastener tape 1 from one side. Figure 3 Same top view. Figure 5 The FC10 is a molded product having a socket body 20 with a socket rod as an opening part, an insert rod 21, and an upper stopper 22. Figure 3 Same top view. Figure 3 to Figure 5 The upper part of the paper is the upstream of FC10 in the conveying direction. Figure 3 to Figure 5 The lower side in the paper is the downstream side in the conveying direction.

[0063] The FC 10 supplied to the zipper manufacturing apparatus 100 includes: a pair of left and right long strips of zipper tapes 1; and a fastener element row 2 including a plurality of fastener elements 2a formed by injection molding or extrusion molding at the opposite edges of each zipper tape 1. In the present embodiment, the fastener elements 2a are formed of a thermoplastic resin such as nylon, polyacetal, polyamide, polypropylene, polybutylene terephthalate, etc., but are not limited thereto.

[0064] 1st Equipment

[0065] The first device 110 is provided with a spacing generating mechanism 111, a film bonding mechanism 112, and a punching mechanism 113 in order from the upstream side to the downstream side. The spacing generating mechanism 111 partially removes the chain element row 2 at predetermined intervals in the length direction of FC10 to form a spacing portion 11 between the relative edges of the left and right zipper tapes 1. A thicker core rope 1a as a reinforcement portion remains at the relative edge of the zipper tape 1 corresponding to the spacing portion 11 obtained by removing the chain element row 2. The core rope 1a can improve the adhesion strength of the chain element 2a and the like relative to the zipper tape 1. The film bonding mechanism 112 bonds the auxiliary film 12 to the front and back sides of the zipper tape 10 corresponding to approximately half of the upstream side of the spacing portion 11. When the socket body 20 and the insert rod 21 are injection molded, the auxiliary film 12 can improve the adhesion of the molten resin and strengthen the two ends of the zipper in the length direction as the final product. The punching mechanism 113 forms a rectangular punching portion 13 on the downstream side of the auxiliary film 12 of the zipper tape 1. When forming the perforated portion 13, the perforating mechanism 113 simultaneously perforates two through holes 14 at the respective opposite edges of the left and right zipper tapes 1 on the upstream side of the perforated portion 13 in the auxiliary film 12. When the socket body 20 and the plunger 21 are injection molded, the molten resin penetrates into the through holes 14, which can improve the connection between the socket body 20 and the plunger 21 at the front and back of the zipper tape 10.

[0066] Second Equipment

[0067] The second device 120 is provided with a chain splitting mechanism 121, a slider single-side penetration mechanism 122, an upper stop and opening member injection molding mechanism 123 and a chain closing mechanism 124 in order from the upstream side to the downstream side. The chain splitting mechanism 121 releases the meshing state between the chain element rows 2 of the left and right zipper tapes 1 and separates the FC10 to the left and right. The slider single-side penetration mechanism 122 installs the slider 3 from the perforated portion 13, that is, penetrates it to the left and right sides ( Figure 4 The upper stop and opening member injection molding mechanism 123 injection molds the socket body 20, the insert rod 21 and the two upper stop portions 22 on the FC10 with the slider 3 passing through one side. The positioning mechanism 200 of the FC10 of the present invention (refer to Figure 6 , Figure 7The upper stop and opening member injection molding mechanism 123 is used to position the FC10 at the injection molding position of the socket body 20, the plunger 21 and the upper stop 22, but is not limited thereto. For example, it can also be used for positioning in a mechanism that only performs injection molding on the socket body 20 and the plunger 21. The chain closing mechanism 124 engages the chain element rows 2 of the left and right zipper tapes 1 on which the socket body 20, the plunger 21 and the upper stop 22 are injection molded to close the FC10.

[0068] 3rd Equipment

[0069] The third device 130 includes an upstream chain assembly mechanism 131 and a downstream cutting mechanism 132. The chain assembly mechanism 131 assembles the socket body 20 and the plunger 21. The cutting mechanism 132 cuts the FC 10 along the width direction at a portion corresponding to the perforated portion 13. The zipper manufacturing apparatus 100 continuously manufactures zippers as described above.

[0070] Figure 6 It is a partial cross-sectional side view showing a partial structure of a positioning mechanism (hereinafter also simply referred to as a "positioning mechanism") 200 of FC10 according to the present invention. Figure 7 yes Figure 6 A top view of the FC10 at the moment. Figure 7 The left side of the paper 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: a first conveying roller 141, a second conveying roller 142, an upper mold 210, a lower mold 220, a chain pressing mechanism 230, a chain pulling mechanism 240, a position fixing mechanism 250, a punching portion guide 260, and an upper stop portion side guide 270 (see Figure 7 ) and a control mechanism (not shown). The first conveying roller 141 and the second conveying roller 142 are components of the conveying mechanism 140 in the zipper manufacturing device 100, and move FC10 to the downstream side or the upstream side of the conveying direction. The first conveying roller 141 is arranged in pair with the passive roller on the upstream side of the upper mold 210 and the lower mold 220. The second conveying roller 142 is arranged in pair with the passive roller on the downstream side of the upper mold 210 and the lower mold 220. The chain pushing mechanism 230, the chain pulling mechanism 240, the position fixing mechanism 250, the perforated portion guide portion 260 and the upper stop side guide portion 270 are a pair of left and right mechanisms or components that respectively work on the left and right zipper tapes 1 of FC10, but only the left and right sides are marked with figure marks in the drawings.

[0071] The upper mold 210 and the lower mold 220 are components of the upper stop and opening piece injection molding mechanism 123 in the zipper manufacturing device 100. In the present embodiment, the upper mold 210 and the lower mold 220 are used to simultaneously injection mold the socket body 20, the insert rod 21, and the two upper stops 22. The upper mold 210 and the lower mold 220 include: a first cavity 20C corresponding to the socket body 20, a second cavity 21C corresponding to the insert rod 21, and a third cavity 22C corresponding to the upper stop 22. The first cavity 20C and the second cavity 21C are targets for positioning FC10 at the opening piece injection molding position. The third cavity 22C is a target for positioning FC10 at the upper stop injection molding position. The first cavity 20C, the second cavity 21C, and the third cavity 22C do not move in the conveying direction and are stationary.

[0072] The lower mold 220 includes a first stopper 221 and a second stopper 222. When FC10 moves to the downstream side, the first stopper 221 blocks the chain element 2b at the downstream side end (hereinafter referred to as the "downstream side end chain element") in the FC 10 that is on the upstream side of the spacer 11 (hereinafter referred to as the "upstream side FC") 10, thereby limiting the further movement of FC10 to the downstream side. When FC10 that is on the downstream side of the spacer 11 (hereinafter referred to as the "downstream side FC") 10 moves to the upstream side, the second stopper 222 blocks the chain element 2c at the upstream side end (hereinafter referred to as the upstream side end chain element) in the downstream side FC10, thereby limiting the further movement of the downstream side FC10 to the upstream side. The first stopper 221 and the second stopper 222 are formed in a stepped manner on the upstream and downstream sides of the upper surface of the lower mold 220.

[0073] Hereinafter, the structure of the positioning mechanism 200 will be further described, and the positioning process of the FC 10 performed by the positioning mechanism 200 will be described. Figure 6 and Figure 7 The moment when the downstream-side end link element 2b of FC10 approaches the first stopper 221 of the lower mold 220 during the movement toward the downstream side by the first conveyor roller 141 and the second conveyor roller 142 is shown. At this moment, the upper mold 210 and the lower mold 220 are located at the initial position. When the downstream-side end link element 2b of FC10 approaches the first stopper 221 of the lower mold 220, the sensor (not shown) detects the spacer 11 of FC10, etc. Based on the detection signal, the control mechanism stops the first conveyor roller 141 and the second conveyor roller 142, causes the lower mold 220 to rise from the initial position, and then activates the chain pushing mechanism 230. As a result, FC10 stops moving toward the downstream side, and the downstream-side end link element 2b approaches the first stopper 221 and stops (refer to Fig. 9 ).

[0074] Figure 8 is from Figure 7The front view of the punching guide 260 is viewed along the arrow AA. The punching guide 260 is a pair of left and right components. Although not shown in the figure, it is assembled to the lower mold 220 in a manner that can be displaced left and right. Each punching 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 that is inclined upward and inward in the left-right direction. Figure 8 The perforated guide 260 is located at the initial position, and the upper end of the guide piece 262 is located below FC10. Figure 7 It is known that in Figure 8 At this moment, the punching portion guide portion 260 is located slightly downstream of the punching portion 13.

[0075] Fig. 9 It means FC10 from Figure 6 The FC10 is a partial cross-sectional side view of the moment when it starts to descend to the lower mold 220. The chain guides (not shown) respectively arranged on the upstream and downstream sides of the upper mold 210 and the lower mold 220 start to descend from the initial position, and the FC10 is lowered to the position where the upper mold 210 and the lower mold 220 are located. Fig. 9 The lower mold 220 is supported at the position shown in FIG. 1 . At this moment, the guide piece 262 of the punching guide 260 is pressed against the lower surface of FC10. In this embodiment, the lower mold 220 does not move in the vertical direction, but it can also be configured so that the lower mold 220 rises relative to FC10. In addition, the lower mold 220 can move in the left and right directions ( Fig. 9 The socket body 20, the plunger 21 and the upper stop 22 are injection molded and then moved to the front-to-depth direction of the paper surface. Fig. 9 Move to the depth side of the paper surface. Fig. 9 At this moment, FC10 stops moving downstream, and the downstream end element 2b approaches the first blocking member 221. Figure 7 At the time of , the chain pressing mechanism 230 moves the FC10 toward the downstream side, and the guide piece 262 of the perforated portion guide 260 pressed against the lower surface of the FC10 passes through the perforated portion 13 of the FC10 and protrudes upward. Fig.10 The punching portion guide 260 is shown at the time of protruding upward from the punching portion 13 of the FC10. Figure 8 When the guide piece 262 of the punching portion guide 260 protrudes upward from the punching portion 13 of FC10, even if the guide piece 262 touches the edge of the punching portion 13, the edge slides on the inclined surface 263 of the guide piece 262, so that the guide piece 262 smoothly protrudes upward from FC10.

[0076] Fig.11 The timing at which the chain pressing mechanism 230 causes the downstream end element 2b of the FC10 to abut against the first stopper 221 of the lower die 220 is shown. Fig. 9 Same partial cutaway side view. Fig.12 Yes means Fig.11 The moment of FC10 with Figure 7 The same top view. During the period when FC10 descends toward the lower mold 220, the chain pressing mechanism 230 operates. The chain pressing mechanism 230 first moves from Fig. 9 The initial position shown in the figure begins to descend, and the upstream side FC10 is pressed against the lower mold 220, and then the upstream side FC10 is moved toward the downstream side while being pressed against the lower mold 220. As a result, FC10 is pushed toward the downstream side, and the downstream side end element 2b abuts against the first stopper 221. As a result, FC10 is positioned at the opening part injection position in the conveying direction. However, at this time, there is a case where the perforated portion 13 is deformed or the core rope 1a is tilted.

[0077] Fig.13 yes Fig.12 A magnified view of box B. Fig.13 , an example of a case where the punched portion 13 is deformed and the core rope 1a is tilted when the FC 10 is positioned at the opening tool injection position in the conveying direction is shown. Fig.13 The reference numeral 1b in the figure is the edge 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 slightly deviates from the second cavity 21C, and the core rope 1a is inclined relative to the length direction of the second cavity 21C. Fig.13 At the moment, the punching portion guide 260 is located relative to FC10. Fig.10 In the upper and lower positions shown, the guide piece 262 is away from the left and right outer sides of the perforated portion 13. Fig. 9 From the time of Fig.12 and Fig.13 At the moment, FC10 is slightly displaced to the downstream side opening part injection position, but the front view of the perforation guide 260 and FC10 is Fig. 9 time and Fig.12 and Fig.13 The moments are the same, such as Fig.10 As shown. By making the perforated portion guide portion 260 Fig.12 and Fig.13 The core rope 1a starts to shift to the left and right sides at the moment of rotation, and can correct the deviation of the perforated portion 13 and the core rope 1a.

[0078] The chain pressing mechanism 230 presses the downstream end element 2b of FC10 toward the first stopper 221 of the lower mold 220. Once FC10 is positioned at the opening piece injection position in the conveying direction, the control mechanism displaces the perforated portion guide 260 to the left and right sides. Fig.14 It means that the perforation guide 260 is Fig.12 The moment when it starts to move to the left and right sides and Figure 7Same top view. Fig.15 yes Fig.14 An enlarged view of box C of FIG. Fig.16 Yes means Fig.14 and Fig.15 The moment of the punching portion guide portion 260 and Figure 8 Same front view. When the perforation guide 260 is displaced to the stop position on the left and right outer sides, the guide piece 262 presses the left and right outer sides of the perforation 13 to the left and right outer sides, thereby pulling the perforation 13 and the core rope 1a to the left and right outer sides, and the deflection of the perforation 13 and the core rope 1a is adjusted. As a result, the edge 1b of the perforation 13 is accommodated in the second cavity 21C, and the core rope 1a is along the length direction of the second cavity 21C. As a result, the positioning of the upstream side FC10 to the injection position of the opening piece in the conveying direction and the left and right directions is completed. Once the positioning of the upstream side FC10 is completed, the control mechanism lowers the upper mold 210.

[0079] In the present embodiment, the upper stop side guide portion 270 is formed on the lower mold 220, but may be formed on the upper mold 210, or may be formed on both the upper mold 210 and the lower mold 220. Regarding the upper stop side guide portion 270, FC10 is lowered onto the lower mold 220 by the chain guides (not shown) on the upstream and downstream sides, and the upper stop side guide portion 270 protrudes upward from between the left and right zipper tapes 1 of the downstream side FC10. The upper stop side guide portion 270 has an inclined surface (not shown) similar to the perforated portion guide portion 260. The upper stop side guide portion 270 guides the core rope 1a of the downstream side FC10 that deviates to the left and right inner sides compared to the specified position toward the left and right outer sides (refer to Fig.12 and Fig.14 ). The upper stopper side guide portion 270 is different from the punching portion guide portion 260 in that it does not displace in the left-right direction, but the upper stopper side guide portion may be displaced in the left-right direction as described later.

[0080] Fig.17 2 is a partial cross-sectional side view showing the moment when the upper mold 210 descends. The chain pulling mechanism 240 and the position fixing mechanism 250 are assembled in the upper mold 210. The chain pulling mechanism 240 includes: a pulling member 241, which protrudes downward from the upper mold 210; a recess 242, which is provided in the lower mold 220 and can accommodate the pulling member 241; a spring 243, which elastically supports the pulling member 241 on the upper mold 210 side; and a receiving portion 244, which is provided in the upper mold 210 and accommodates the spring 243 and the upper half of the pulling member 241. In the chain pulling mechanism 240, when the upper mold 210 descends relative to the lower mold 220, the pulling member 241 carries FC10 into the recess 242. As a result, the downstream side FC10 is pulled to the upstream side, and the upstream side end element 2c abuts against the second stopper 222 of the lower mold 220. Thereby, the downstream side FC10 is positioned at the top stop injection position.

[0081] The position fixing mechanism 250 is elastically supported by the spring 251 on the upper mold 210 side. Fig. 9 The initial position shown is slightly protruding downward from the pulling member 241 of the chain pulling mechanism 240 . Therefore, when the upper mold 210 descends, the position fixing mechanism 250 contacts the FC10 before the chain pulling mechanism 240 , and fixes the position of the upstream FC10 to the lower mold 220 . Fig.18 is a time period indicating the time when the chain pulling mechanism 240 contacts the FC10. Figure 7 Same top view. Fig.18 After the moment, the chain pulling mechanism 240 pulls the downstream side FC10 to the upstream side. At this time, the position fixing mechanism 250 fixes the position of FC10 on the upstream side of the chain pulling mechanism 240, so that the upstream side FC10 will not be pulled to the downstream side.

[0082] Fig.19 is a diagram showing a modified example of the upper stopper side guide portion. Fig.12 Same top view. Fig. 20 yes Fig.19 The upper stop side guide portion 270 described above does not move in the left-right direction, but Fig.19 and Fig. 20 The upper stopper side guide 271 shown is capable of displacement in the left-right direction. Fig.19 and Fig. 20 At the time of , the upper stopper side guide 271 protrudes upward from between the left and right core ropes 1a of the lowered FC10. Then, the upper stopper side guide 271 moves to the stop position on the left and right outer sides. Fig.21 is a time that indicates the displacement of the upper stopper side guide 271 to the left and right outer sides. Fig. 20 The same enlarged view. The upper stopper side guide 271 is displaced to the left and right outer sides, so that the deflection of the core rope 1a is adjusted.

Claims

1. A zipper chain positioning mechanism, the zipper chain positioning mechanism (200) is used to position the zipper chain (10) at the injection molding position of the opening member (20, 21), characterized in that: It has left and right perforated portion guide parts (260), which can pass through the perforated portion (13) of the zipper chain (10) and move to the left and right outer sides.

2. The zipper chain positioning mechanism according to claim 1, characterized in that: include: An upper mold (210) and a lower mold (220) for injection molding the opening parts (20, 21); a first stopper (221) capable of blocking the fastener element (2b) at the downstream end of the fastener chain (10) on the upstream side of the spacer (11) to restrict the movement of the fastener chain (10) toward the downstream side; and The chain pressing mechanism (230) presses the slide fastener chain (10) on the upstream side of the spacer (11) toward the downstream side, so that the chain element (2b) at the downstream end abuts against the first stopper (221).

3. The zipper chain positioning mechanism according to claim 2, characterized in that: include: The upper mold (210) and the lower mold (220) are also used to perform injection molding on the upper stop portion (22). The zipper chain positioning mechanism (200) comprises: a second blocking member (222) capable of blocking the chain element (2c) at the upstream end of the zipper chain (10) on the downstream side of the spacer (11), thereby restricting the movement of the zipper chain (10) on the downstream side of the spacer (11) toward the upstream side; a chain pulling mechanism (240) for pulling the zipper chain (10) on the downstream side of the spacer (11) toward the upstream side so that the chain element (2c) at the upstream end abuts against the second blocking member (222); and A position fixing mechanism (250) fixes the position of the zipper chain (10) on the upstream side of the chain pulling mechanism (240) when the chain pulling mechanism (240) is in operation.

4. The zipper chain positioning mechanism according to any one of claims 1 to 3, characterized in that: An upper stop side guide portion (270, 271) is provided, and the upper stop side guide portion (270, 271) guides a core rope (1a) near an injection molding position of an upper stop portion (22) in the slide fastener chain (10).

5. A method for positioning a zipper chain, characterized in that: include: A step of positioning the zipper chain (10) in the conveying direction; as well as A process of allowing a perforated portion guide portion (260) to pass through the perforated portion (13) of the slide fastener chain (10) and causing the perforated portion guide portion (260) to move to the left and right outer sides.

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