CN113940489A

CN113940489A - Single-side penetrating mechanism of pull head

Info

Publication number: CN113940489A
Application number: CN202010678971.7A
Authority: CN
Inventors: 金本阳一郎; 土地宏季; 阪本雅树; 小原祥大
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2022-01-18
Also published as: TW202203799A; TWI763104B

Abstract

The invention provides a slider unilateral penetrating mechanism which can install a slider on one side of a pair of zipper tooth chain belts in an open state without stopping the conveying of the zipper chain. The present invention relates to a slider unilateral penetrating mechanism for penetrating a slider unilateral into one of a pair of fastener stringers constituting a fastener chain, the pair of fastener stringers having a spacer portion including a penetrating portion formed at a predetermined interval in a longitudinal direction. The slider one-side piercing mechanism includes: a holding member that holds a slider and is movable between an initial position and an attachment position for attaching the slider to one fastener stringer; and a guide member that guides the perforated portion of the fastener stringer, which is in the process of moving downstream in the conveying direction and in which the fastener element row is in the open state, toward one shoulder opening of the slider held by the holding member located at the mounting position.

Description

Single-side penetrating mechanism of pull head

Technical Field

The present invention relates to a slider unilateral penetrating mechanism, and more particularly, to a mechanism for penetrating a slider unilateral through one of a pair of fastener stringers constituting a fastener chain in a process of manufacturing the fastener chain from a continuous fastener chain.

Background

When a slide fastener having a synthetic resin fastener element (element) row is continuously mass-produced based on 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 rows 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 threading a slider to a cut-off fastener unit; and a step of injection molding the upper stop portion.

Also, TWI566923B (patent document 1) discloses a method of continuously manufacturing a slide fastener having a synthetic resin element row based on a continuous fastener chain. In patent document 1, the following processing steps are performed in order. A step of forming a continuous fastener tape by injection molding a synthetic resin element row on each of opposite edge portions of a pair of left and right long fastener tapes, and leaving a space portion where the element row is not injection molded at a predetermined interval in a longitudinal direction of the fastener chain; a step of bonding a reinforcing film to a region of the fastener chain sandwiching a part of the spacer; punching a positioning hole in the spacer; a step of attaching a slider to a fastener chain; a step of injection molding the plunger by using the positioning hole as a reference point; and cutting the fastener chain along the width direction at a portion corresponding to the spacer.

In the step of attaching the slider to the fastener stringer in patent document 1, the slider is attached to both fastener stringers of the pair of fastener stringers in a state where the fastener element rows are closed. In this case, after the slider mounting step, an injection molding step of opening the fastener element or the like is required for the pair of fastener stringers in the closed state, and for example, it is not possible to simultaneously injection mold the insert pin and the receptacle body.

CN1292241A (patent document 2) discloses a step of attaching a slider to one fastener stringer of a pair of fastener stringers in a state where the fastener element row is opened. However, in the technique described in patent document 2, after the conveyance of the fastener chain is once stopped, the edge portion of one fastener stringer is pulled into the slider, and the conveyance of the fastener chain is restarted after the injection molding of the opener and the like. However, in the technique of patent document 2, since the conveyance of the fastener chain is stopped once, there is a problem that the manufacturing efficiency of the slide fastener is lowered.

Documents of the prior art

Patent document 1: TWI566923B

Patent document 2: CN1292241A

Disclosure of Invention

The present invention has been made in view of the above problems, and an object thereof is to provide a slider one-side threading mechanism capable of attaching a slider to one fastener stringer of a pair of fastener stringers in an open state without stopping the conveyance of the fastener stringer.

According to the present invention, there is provided a slider unilateral penetrating mechanism for penetrating a slider unilateral into one fastener stringer of a pair of fastener stringers constituting a fastener chain, the pair of fastener stringers having a spacer including a penetrating portion formed at a predetermined interval in a longitudinal direction, the slider unilateral penetrating mechanism including: a holding member that holds the slider and is movable between an initial position and an attachment position for attaching the slider to the one fastener stringer; and a guide member that guides the through-hole portion in the one fastener stringer, which is in a state in which the fastener element row is opened while moving downstream in the conveying direction, toward one shoulder opening of the slider held by the holding member located at the attachment position.

In the present invention, the holding member holding the slider can be moved from the initial position to the mounting position, and the guide member guides the through hole in the one fastener stringer of the fastener chain which is moving downstream in the conveying direction and in which the fastener element row is in the open state, to the one shoulder opening of the slider at the mounting position. Thereby, the fastener stringer following the perforated portion enters the slider. Thus, the slider can be inserted into one of the fastener stringers in the open state without stopping the conveyance of the fastener stringer.

In one embodiment of the present invention, a slider one-side piercing mechanism includes: a sensor for detecting the perforated portion or the spacer portion; a driving section that moves the holding member between the initial position and the mounting position; and a controller that operates the driving unit after the sensor detects the perforation unit or the spacer. In this case, the sensor transmits a detection signal to the controller after detecting the piercing part or the spacer, and the controller transmits an operation signal to the driving part. Thus, the drive unit moves the holding member holding the slider from the initial position to the attachment position.

In one embodiment of the present invention, after guiding the piercing portion, the guide member guides a fastener tape edge portion adjacent to the piercing portion on an upstream side in a conveying direction in the one fastener stringer to one shoulder opening (3a) of the slider. In this case, after the guide member guides the piercing portion to one shoulder opening of the slider, the guide member guides a fastener tape edge portion adjacent to the piercing portion on the upstream side in the conveying direction in one fastener stringer to the one shoulder opening of the slider. Thereby, one fastener stringer enters the slider from the fastener tape edge portion following the punched portion.

In one embodiment of the present invention, the holding member is provided above or below the one fastener stringer in a vertical direction, and the guide member is provided on a side opposite to the holding member, that is, below or above the one fastener stringer, and is provided on an upstream side of the slider held by the holding member located at the attachment position. Here, the vertical direction of the fastener stringer means a direction perpendicular to the conveying direction and the width direction (left-right direction) of the fastener stringer, and the upper side in the vertical direction is one side (for example, the front side) of the front and back of the fastener stringer. In the paper of fig. 22b, the back side of the slider faces upward. Further, the lower side in the vertical direction is the other side (for example, the back side) of the front and back of the fastener stringer. In the paper surface of fig. 22b, the slider connected to the tab has its front side directed downward. In this aspect, the holding member and the guide member are disposed so as to sandwich one fastener stringer from above and below, and the guide member is disposed upstream in the conveying direction from the slider located at the attachment position.

In one embodiment of the present invention, the holding member is provided below the one fastener stringer, the guide member is provided above the one fastener stringer, the slider held by the holding member lifts up the one fastener stringer on the downstream side in the conveying direction of the guide member at the mounting position, and the lower end of the guide member is located below the upper end of the slider at a timing when the guide member guides the perforated portion with respect to one shoulder opening of the slider located at the mounting position. In this case, one fastener stringer is sandwiched from above and below between the upper guide member and the slider held by the lower held member, and the slider located at the attachment position lifts up the one fastener stringer on the downstream side in the conveying direction of the guide member. Further, the lower end of the guide member is positioned below the upper end of the slider at the time when the guide member guides the piercing portion to one shoulder opening of the slider.

In the present invention, the guide member may be stationary or movable.

Effects of the invention

In the present invention, the holding member holding the slider can be moved from the initial position to the attachment position, and the guide member guides the perforated portion of the one fastener stringer of the fastener chain which is moving downstream in the conveying direction and in which the fastener element rows are in the open state, with respect to the one shoulder opening of the slider at the attachment position. Thereby, one fastener stringer enters the slider following the perforated portion. Thus, the slider can be inserted into one of the fastener stringers in the open state without stopping the conveyance of the fastener stringer. This can improve the manufacturing efficiency of the slide fastener.

Drawings

Fig. 1 is an explanatory view schematically showing a synthetic resin slide fastener manufacturing apparatus.

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 a single side is inserted through the slider.

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 socket bar and the plug bar 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(a) is a top explanatory view schematically showing the slider one-side threading mechanism according to embodiment 1 of the present invention, and shows a timing when the sensor detects the threading part of the left fastener stringer.

Fig. 18(b) is a side explanatory view corresponding to fig. 18 (a).

Fig. 19(a) is a top explanatory view showing a timing at which the holding member is moved to the mounting position.

Fig. 19(b) is a side explanatory view corresponding to fig. 19 (a).

Fig. 20(a) is a top explanatory view showing a state where a fastener tape edge portion of the left fastener stringer enters the slider from the left shoulder opening of the slider.

Fig. 20(b) is a side explanatory view corresponding to fig. 20 (a).

Fig. 21(a) is a top explanatory view showing a state where the element row of the left fastener stringer is inserted into the slider.

Fig. 21(b) is a side explanatory view corresponding to fig. 21 (a).

Fig. 22(a) is a top explanatory view schematically showing a slider one-side piercing mechanism according to embodiment 2 of the present invention.

Fig. 22(b) is a side explanatory view corresponding to fig. 22 (a).

Fig. 23(a) is a top explanatory view showing a timing at which the holding member is moved from the initial position to the mounting position.

Fig. 23(b) is a side explanatory view corresponding to fig. 23 (a).

Fig. 24(a) is a top explanatory view showing a state in which a fastener tape edge portion of the left fastener stringer enters the slider from the left shoulder opening of the slider.

Fig. 24(b) is a side explanatory view corresponding to fig. 24 (a).

Fig. 25(a) is a top explanatory view showing a state where the element row of the left fastener stringer is inserted into the slider.

Fig. 25(b) is a side explanatory view corresponding to fig. 25 (a).

Fig. 26 is a block diagram showing a control structure of the slider one-side piercing mechanism.

Fig. 27(a) is a top explanatory view schematically showing a slider one-side piercing mechanism according to embodiment 3 of the present invention.

Fig. 27(b) is a side explanatory view corresponding to fig. 27 (a).

Fig. 28 is a side explanatory view showing a timing at which the holding member is moved to the mounting position.

Fig. 29 is a side explanatory view of the slider one-side piercing mechanism according to embodiment 4 of the present invention.

Fig. 30 is a side explanatory view showing an example in which the holding member and the slider are tilted with respect to the fastener chain and one side is inserted into the slider.

Fig. 31 is a side explanatory view showing an example in which the holding member and the slider are tilted with respect to the fastener chain and one side is inserted into the slider.

Fig. 32 is a side explanatory view showing a modification of the slider one-side piercing mechanism according to embodiment 4 of fig. 29.

Fig. 33 is a side explanatory view showing a modification of the slider one-side piercing mechanism according to embodiment 4 of fig. 29.

Description of the reference numerals

1 zipper strip 1b zipper strip edge

2 element row 3 pull head

3a shoulder 3d element guide path

10 zipper chain 11 spacing part

12 reinforcing film 13 perforation

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 device 2 121, 121a, 121b, 121c slider unilateral feedthrough mechanism

122 upper stop and opener injection molding mechanism 123 chain closing mechanism

130 No. 3 equipment 131 chain combined mechanism

132 slider pull-down mechanism 133 cutting mechanism

134 top stop inspection mechanism 140 transport mechanism

160 controller 161, 161c holding component

162

drive part

163, 173 pin (guide member)

164 sensor 165a No. 1 conveyance guide (guide member)

165b 2 nd conveyance guide (guide member) 170 displacement mechanism

170a swing member 170b frame (guide member)

171.

171a shaft

172, 172a spring (elastic member)

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. 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" in the conveying direction, and the side opposite to the downstream in the conveying direction is referred to as "upstream". In addition, the slide fastener 10 may be moved to the upstream side in the conveying direction during the manufacturing process. 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 driving roller, a tension roller, and a guide roller 141 that guide the fastener chain 10 in a 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 roller driving part for rotating the driving roller in one direction or the other direction; and various components constituting the conveyance path. The conveying mechanism 140 can temporarily stop the conveyance of the fastener chain 10, move the upstream side with the conveying direction reversed, 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 gap generating means 111 for partially removing the element rows 2 at predetermined intervals in the longitudinal direction of the fastener chain 10 to form a gap 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 a slider 3 from a perforated portion 13 one side through element rows of one fastener stringer 1a (left side in fig. 7) of right and left

fastener stringers

1a, 1a which are at least partially opened; an upper stopper and opener injection molding mechanism 122 for simultaneously injection molding the socket body 20 with a socket bar and the insert bar 21, which are openers of the upstream-side fastener unit portion 10B through which the slider 3 is inserted on one side, and the 2 upper stoppers 22, which are 2 upper stoppers 22 of the downstream-side fastener unit portion 10A adjacent to the upstream-side fastener unit portion 10B on the downstream side via the through hole portion 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 opener 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, the slider one-side threading mechanism 121 threads 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 perforated portion 13 of the left fastener stringer 1a, and then conveys 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 side fastener unit portion 10B). The slider unilateral penetrating mechanism 121 will be described in detail later.

Referring to fig. 8, the upper stop and opener injection molding mechanism 122 injection molds the socket body 20 with the socket bar on the left fastener stringer 1a of the upstream-side fastener unit portion 10B of the slider 3 on one side, injection molds the insert bar 21 on the right fastener stringer 1a, and injection molds 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 socket bar is formed at the opposite edge portion of the left fastener stringer 1a of the upstream side fastener stringer unit 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 with the socket bar in the right fastener stringer 1a of the upstream side 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 receptacle body 20 with the receptacle bar and the insert bar 21 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 receptacle body 20 with the insert bar 21 on the front and back sides of the fastener tape 1. This can improve the fixing force of the receptacle body 20 with the receptacle bar and the insert bar 21 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. At the position of the fastener chain 10 shown in fig. 14 after the slider 3 has passed through the engaging element 123a downstream, the left and right engaging

elements

123a, 123a move from the initial position to the close position, and engage a part of the left and

right element rows

2, 2. 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 with socket bar 20 and the insert bar 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: a chain combining mechanism 131 for combining the socket body 20 with the socket bar and the plug bar 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 socket bar and the plug bar 21 separated in the state of fig. 15. 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 whether it is normally formed by using a checking mechanism such as a camera or an image, or can be checked whether it is normally formed by visual check by 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, the slider one-side insertion mechanism 121 according to the present invention will be described. Fig. 18(a) is a top explanatory view schematically showing the slider one-side piercing mechanism 121 according to embodiment 1 of the present invention. Fig. 18(b) is a side explanatory view corresponding to fig. 18 (a). The slider one-side threading mechanism 121 is provided in the 2 nd facility 120 of the synthetic resin slide fastener manufacturing apparatus 100 as described above. The fastener chain 10, in which the spacer 11, the reinforcing film 12, the perforated portion 13, and the like are processed in the 1 st apparatus 110, is conveyed to the 2 nd apparatus 120 by the conveying mechanism 140. In the fastener chain 10, the coupling of the

element rows

2, 2 of the pair of right and left

fastener stringers

1a, 1a is partially released at least at the upstream side and the downstream side in the vicinity of the piercing part 13 to which the slider 3 is attached, and an open state is formed at the upstream side of the slider one-side insertion mechanism 121. The conveying mechanism 140 supplies the left and

right fastener stringers

1a, 1a to the slider unilateral penetrating mechanism 121 in an opened state, and allows the

fastener stringers

1a, 1a to pass through the slider unilateral penetrating mechanism 121 in a downstream direction in the conveying direction without stopping. In the following description of the present embodiment and embodiments 2 to 4 described later, the fastener stringer 1a below the paper of fig. 18(a) to 25(a) and 27(a) in the pair of

fastener stringers

1a, 1a is referred to as "left fastener stringer 1 a" and is an object to which the slider 3 is attached in the slider unilateral penetrating mechanism 121. Fig. 18(b) to 25(b), 27(b), and 28 to 33 show the left fastener stringer 1 a.

The slider one-side penetrating mechanism 121 is a mechanism for attaching the slider 3 to the left fastener stringer 1a in an opened state and in the course of movement. Referring to fig. 18(a) and 18(b), the slider one-side insertion mechanism 121 includes: a holding member 161 for holding the slider 3; a driving unit 162 (see fig. 26) for moving the holding member 161 between an initial position (see fig. 18(b)) away from the left fastener stringer 1a and an attachment position (see fig. 19(b) and the like) for attaching the slider 3 to the left fastener stringer 1 a; a pin 163 as a guide member that guides the through-hole portion 13 in the left fastener stringer 1a toward the shoulder opening 3a on one of the left and right sides (below the paper surface of fig. 19 a) of the slider 3 held by the holding member 161 located at the attachment position; a contact or noncontact sensor 164 for detecting the spacer portion 11 or the perforated portion 13; and a controller 160 (see fig. 26) that operates the driving unit 162 after the sensor 164 detects the spacer 11 or the punching unit 13. As will be described later, the pin 163 guides the fastener tape edge portion 1b adjacent to the perforation portion 13 upstream in the conveying direction toward the shoulder opening 3a of the slider 3, following the perforation portion 13. The cross-sectional shape of the pin 163 may be a polygon such as a circle, an oval, a bag (japanese), a square, a rectangle, a quadrangle, a pentagon, a hexagon, or an octagon. This is also suitable for the pin 173 as a guide member to be described later.

The holding member 161 is provided below the left fastener stringer 1 a. In contrast, the pin 163 is provided above the left fastener stringer 1 a. The holding member 161 includes 2 holding

plates

161b, 161b (see fig. 25(b) and the like) separated in the conveying direction. A space is provided between the holding

plates

161b, 161 b. On the side of the upper surface of each holding plate 161b and facing each other, a recess 161a for holding the slider 3 is provided. Hereinafter, the 2 recesses 161a are referred to as "holding portions 161 a". In the present embodiment, the slider 3 is held by the holding portion 161a of the holding member 161 so that the upper blade 3c faces downward, and the upper blade 3c has the tab connecting portion 3 b. In the present specification, for convenience, the left and right shoulder opening 3a of the slider 3 on the side where the fastener tape edge portion 1b of the left fastener stringer 1a is guided by the pin 163 is referred to as a left shoulder opening 3 a. Further, when the slider 3 has a locking function capable of resisting relative movement of the slider 3 with respect to the element row 2 of the fastener stringer 1a inserted through the internal element guide path 3d, the slider 3 is held by the holding portion 161a in a state where the locking function is released. When the sensor 164 detects the spacer 11 or the punching portion 13, the controller 160 operates the driving portion 162 to move the holding member 161 from the lower initial position to the upper attachment position. The slider 3 held by the holding portion 161a of the holding member 161 slightly lifts up the left fastener stringer 1a by being lifted up to the attachment position (see fig. 19 (b)).

The pin 163 is disposed so as to be close to the upper surface of the left fastener stringer 1a in parallel and orthogonal to the conveying direction. In the present embodiment, the pin 163 is stationary and is always in a stationary state. The pins 163 are positioned such that: immediately on the upstream side of the slider 3 held by the holding member 161 located at the mounting position, and the lower end of the pin 163 is located slightly below the upper end of the slider 3 held by the holding member 161 located at the mounting position in the up-down direction. More specifically, the lower end of the pin 163 is positioned slightly above the upper surface of the element row 2 of the left fastener stringer 1a, which is closer to the pin 163 from the upstream side of the pin 163. The vertical position of the element row 2 of the left fastener stringer 1a which is closer to the pin 163 from the upstream side is the same as the vertical position of the left shoulder opening 3a of the slider 3 held by the holding member 161 located at the attachment position. When the holding member 161 is raised to the attachment position together with the slider 3, the left fastener stringer 1a located on the downstream side of the pin 163 is lifted upward by the slider 3 (see fig. 19 (b)).

Next, a process of inserting the slider 3 into the left fastener stringer 1a in one side in the slider one-side inserting mechanism 121 will be described. In the following description, although the sensor 164 is described as a device that detects the perforation 13, the sensor 164 may be a device that detects the spacer 11. Fig. 18(a) and 18(b) show the timing when the sensor 164 detects the through hole 13 formed in the spacer 11 of the left fastener stringer 1a supplied to the slider unilateral penetrating mechanism 121. At this time, the holding member 161 is located at the initial position. The sensor 164 transmits a detection signal indicating that the puncture section 13 is detected to the controller 160, and the controller 160 transmits an operation signal to the driving section 162 based on the detection signal. Thereby, the driving portion 162 raises the holding member 161 holding the slider 3 from the initial position to the attachment position. Fig. 19(a) and 19(b) are a top explanatory view and a side explanatory view showing the timing when the holding member 161 is moved to the mounting position. By the movement of the holding member 161 to the attachment position, the left fastener stringer 1a downstream of the pin 163 is lifted upward by the slider 3, and the conveying path of the left fastener stringer 1a downstream of the pin 163 is temporarily changed in parallel upward from the original conveying path (see fig. 18 (b)). In detail, referring to fig. 19(b), the left fastener stringer 1a moving downstream is moved toward the upper end of the slider 3 on the upstream side obliquely upward as soon as the pin 163 passes, and then is moved downstream substantially in parallel with the original conveying path (see fig. 18(b)) along the upper surface 3f of the slider 3. Reference numeral 1d in fig. 19(b) is a step portion in the fastener stringer 1a generated between the pin 163 and the slider 3. While the holding member 161 is moving from the initial position to the attachment position, the perforated portion 13 of the left (and right) fastener stringer 1a moves downstream in the conveying direction from the position shown in fig. 18(a) and 18(b) to the position shown in fig. 19(a) and 19 (b). At the time of fig. 19(a) and 19(b), the perforated portion 13 of the left fastener stringer 1a is located immediately upstream of the pin 163.

Fig. 20(a) and 20(b) are a top explanatory view and a side explanatory view showing a state where the fastener tape edge portion 1b of the left fastener stringer 1a enters the slider 3 from the left shoulder opening 3a of the slider 3. When the penetrating hole 13 of the left fastener stringer 1a reaches the position of the pin 163, the upward lifting of the fastener stringer 1 by the slider 3 is interrupted by the penetrating hole 13, and the fastener tape edge 1b adjacent to the upstream side of the penetrating hole 13 passes the lower end of the pin 163, and then enters the element guide path 3d between the upper blade plate 3c and the lower blade plate 3e from the left shoulder 3a of the slider 3 without going toward the upper surface 3f of the slider 3 but being guided by the pin 163. On the other hand, a fastener tape edge 1c (see fig. 20(a) and (b)) facing the fastener tape edge 1b on the downstream side through the through hole 13 passes through the pin 163, is lifted by the slider 3, and moves downstream along the upper surface 3f of the slider 3. After the fastener tape edge portion 1b in the slider 3 has entered, the opposite edge portion of the fastener tape 1 on the upstream side of the fastener tape edge portion 1b, to which the reinforcing film 12 is bonded and in which the through hole 14 is formed, is inserted into the element guide path 3d of the slider 3, and then the element row 2 of the left fastener stringer 1a is inserted into the slider 3. Fig. 21(a) and 21(b) are a top explanatory view and a side explanatory view showing a state where the element row 2 of the left fastener stringer 1a is inserted into the slider 3. As described above, the slider 3 is unilaterally inserted into the left fastener stringer 1a which is in the moving state and in the open state. Then, the holding member 161 leaves the slider 3 on the left fastener stringer 1a, and the holding member 161 is returned to the initial position by the driving portion 162.

In embodiment 1 described above, the pin 163 as the guide member is stationary, but the present invention is not limited to this, and the guide member may be movable. Fig. 22(a) is a top explanatory view schematically showing the slider one-side piercing mechanism 121a according to embodiment 2 of the present invention. Fig. 22(b) is a side explanatory view corresponding to fig. 22 (a). In the following description of embodiment 2, the same reference numerals are used for the holding member 161, the sensor 164, and the like substantially common to those of embodiment 1 described above, and the description thereof is omitted. The slider one-side penetrating mechanism 121a includes: a holding member 161; a driving portion 162 that moves the holding member 161 between an initial position and a mounting position; a pin 173 as a guide member that guides a fastener tape edge portion 1b adjacent to the through-hole portion 13 on the upstream side in the conveying direction in the left fastener stringer 1a toward the left shoulder opening 3a of the slider 3 held by the holding member 161 located at the attachment position; a displacement mechanism 170 for displacing the pin 173; a sensor 164; and a controller 160 (see fig. 26). The displacement mechanism 170 is provided above the left fastener stringer 1a, and includes: a shaft portion 171; a swinging member 170a which can swing around the shaft 171; the spring 172 as an elastic member applies an elastic force to the swing member 170a in a direction to raise the upstream end of the swing member 170 a. The pin 173 is provided at a lower end portion of the swing member 170a on the downstream side. Reference numeral 165 in fig. 22(a) and 22(b) is a conveying guide partially defining the upper and lower surfaces of the conveying path of the left and right fastener stringers 1 a. In the present embodiment, the conveyance guide 165 is provided upstream of the mounting position of the holding member 161. The spring 172 of the displacement mechanism 170 has an upper end received by the swing member 170a and a lower end supported by the upper surface of the conveyance guide 165.

The pins 173 are arranged parallel to the upper surface of the left fastener stringer 1a and orthogonal to the conveying direction. In the initial position (see fig. 22 a, 22 b, etc.), the pin 173 biases the swinging member 170a downward (clockwise on the paper surface of fig. 22 b) about the shaft 171 by the spring 172. At this time, the lower end of the pin 173 is positioned slightly above the upper surface of the element row 2, and therefore does not affect the feeding of the fastener stringer 1 a.

Fig. 22(a) and 22(b) show timings at which the sensor 164 detects the piercing part 13 of the left fastener stringer 1a supplied to the slider unilateral penetrating mechanism 121 a. At this time, the holding member 161 and the pin 173 are located at their initial positions. The sensor 164 transmits a detection signal indicating that the puncture section 13 is detected to the controller 160, and the controller 160 transmits an operation signal to the driving section 162 based on the detection signal. Thereby, the driving portion 162 raises the holding member 161 holding the slider 3 from the initial position to the attachment position. Fig. 23(a) and 23(b) are a top explanatory view and a side explanatory view showing the timing when the holding member 161 is moved to the mounting position. By the movement of the holding member 161 to the attachment position, the left fastener stringer 1a downstream of the pin 173 is lifted upward by the slider 3. Accordingly, the left fastener stringer 1a downstream of the pin 173 slightly lifts the pin 173 upward from the initial position (see fig. 23 b). The swing member 170a is displaced upward (counterclockwise in fig. 23(b)) about the shaft 171 against the biasing force of the spring 172. When the holding member 161 is raised from the initial position to the attached position, the element row 2 is sandwiched between the pin 173 and the slider 3, but the pin 173 is displaced upward, whereby the load applied to the element row 2 can be reduced, and chipping and breakage of the element row 2 can be suppressed. Referring to fig. 23(b), the left fastener stringer 1a during the downstream conveyance runs to the upper end of the slider 3 on the upstream side obliquely upward after passing the pin 173, and then advances downstream along the upper surface 3f of the slider 3. Reference numeral 1d in fig. 23(b) is a step portion in the fastener stringer 1a generated between the pin 173 and the slider 3. At the time of fig. 23(a) and 23(b), the piercing portion 13 of the left fastener stringer 1a is located immediately upstream of the pin 173, and the pin 173 is about to guide the piercing portion 13 and then the fastener tape edge portion 1b into the left shoulder opening 3a of the slider 3. At the time of fig. 23(a) and 23(b), the lower end of the pin 173 is located below the upper end of the slider 3.

When the piercing portion 13 reaches the position of the pin 173 from the time point of fig. 23(a) and 23(b), the upward lifting of the fastener tape 1 by the slider 3 and the lifting of the pin 173 by the fastener tape 1 are interrupted by the piercing portion 13. Thereby, the pin 173 is returned to the lower initial position side by the urging force of the spring 172. At this time, the pin 173 guides the fastener tape edge 1b, which has passed through the piercing portion 13 and the subsequent piercing portion 13 at the lower end of the pin 173, into the left shoulder opening 3a of the slider 3. At the time when the pin 173 guides the fastener tape edge portion 1b to the left shoulder opening 3a of the slider 3, the lower end of the pin 173 is located slightly below the upper end of the slider 3 and is located at substantially the same vertical position as the upper end of the left shoulder opening 3a of the slider 3. Thus, after the fastener tape edge portion 1b passes the lower end of the pin 173, it is guided into the slider 3 by the pin 173 without going toward the upper surface 3f of the slider 3. Fig. 24(a) and 24(b) are a top explanatory view and a side explanatory view showing a state where the fastener tape edge portion 1b of the left fastener stringer 1a enters the slider 3 from the left shoulder opening 3a of the slider 3. After entering the fastener tape edge portion 1b in the slider 3, the opposing edges of the fastener tape 1 where the reinforcing film 12 and the through hole 14 are formed are inserted into the element guide path 3d of the slider 3, and then the element row 2 is inserted into the element guide path 3d of the slider 3. Fig. 25(a) and 25(b) are a top explanatory view and a side explanatory view showing a state where the element row 2 of the left fastener stringer 1a is inserted into the slider 3. At the time of fig. 24(a) and 24(b), the lower end of the pin 173 is located at an initial position located slightly above the upper surface of the element row 2. Therefore, when the element row 2 of the left fastener stringer 1a comes directly below the pin 173, the pin 173 does not contact the element row 2, and therefore, the feeding of the fastener stringer 1a is not affected. The initial position of the pin 173 may be set to a position in contact with the spacer 11 of the left fastener stringer 1 a. In this case, when the element row 2 of the left fastener stringer 1a comes directly below the pin 173, the element row 2 also slightly lifts the pin 173. Thus, the swing member 170a is slightly displaced upward around the shaft 171 against the biasing force of the spring 172. As described above, the slider 3 is inserted through the left fastener stringer 1a in the moving and opened state on one side. At the time of fig. 25(a) and 25(b), the holding member 161 leaves the slider 3 on the left fastener stringer 1a and the holding member 161 returns to the initial position.

In the

above embodiments

1 and 2, the

pins

163 and 173 are exemplified as the guide member, but the present invention is not limited to such a guide member. Fig. 27(a) is a top explanatory view schematically showing the slider one-side piercing mechanism 121b according to embodiment 3 of the present invention. Fig. 27(b) is a side explanatory view corresponding to fig. 27 (a). In the slider unilateral penetrating mechanism 121b of embodiment 3, a block 170b similar to the swing member 170a of embodiment 2 is used as a guide member. Note that the same reference numerals are used for the sensor 164, the conveyance guide 165, the holding member 161, and the like, which are common to those in embodiment 2 or embodiment 1, and descriptions thereof are omitted. The block 170b is attached to the conveying guide 165 so as to be disposed above the left fastener stringer 1 a. The block 170b is a movable member that is biased downward (clockwise on the paper surface of fig. 27 b) about the shaft 171a by a spring 172a at an initial position (see fig. 27 a and 27 b). At this time, the lower end of the block 170b is positioned slightly above the upper surface of the element row 2. A recess that allows the block 170b to swing is provided in a portion of the conveyance guide 165 corresponding to the block 170 b.

Fig. 27(a) and 27(b) show timings at which the sensor 164 detects the piercing part 13 of the left fastener stringer 1a supplied to the slider unilateral penetrating mechanism 121 b. At this time, the holding member 161 and the block 170b are located at their initial positions. The sensor 164 transmits a detection signal indicating that the puncture section 13 is detected to the controller 160, and the controller 160 transmits an operation signal to the driving section 162 based on the detection signal. Thereby, the driving portion 162 raises the holding member 161 holding the slider 3 from the initial position to the attachment position. Fig. 28 is a side explanatory view showing a timing at which the holding member 161 is moved to the mounting position. By the movement of the holding member 161 to the attachment position, the left fastener stringer 1a on the downstream side of the block 170b is lifted upward by the slider 3. Accordingly, the left fastener stringer 1a downstream of the block 170b slightly lifts the block 170b upward (counterclockwise in fig. 27 (b)) from the initial position against the biasing force of the spring 172 a. At the time of fig. 28, the lower end of the block 170b is located lower than the upper end of the slider 3. When the piercing portion 13 reaches the position of the block 170b from the time point of fig. 28, the upward lifting of the fastener tape 1 by the slider 3 and the lifting of the block 170b by the fastener tape 1 are interrupted by the piercing portion 13. Thereby, the block 170b is returned to the lower initial position side by the urging force of the spring 172 a. At this time, the block 170b guides the fastener tape edge portion 1b, which has passed through the piercing portion 13 at the lower end of the block 170b and the piercing portion 13, into the left shoulder opening 3a of the slider 3.

Fig. 29 is a side view illustrating a slider one-side piercing mechanism 121c according to embodiment 4 of the present invention. In the slider unilateral penetrating mechanism 121c, as the guide members, a 1 st feeding guide 165a disposed on the upstream side of the mounting position and a 2 nd feeding guide 165b disposed on the downstream side of the mounting position are used. The 1 st conveying guide 165a and the 2 nd conveying guide 165b are stationary members arranged in a stationary state so as to partially define the upper and lower surfaces of the conveying path of the left and right fastener stringers 1 a. The configurations other than the 1 st conveyance guide 165a and the 2 nd conveyance guide 165b are common to those of embodiment 1 or embodiment 2, and therefore the same reference numerals are used. The 1 st conveyance guide 165a includes an upper plate 166a and a lower plate 166b that are parallel to each other. The 2 nd conveyance guide 165b includes an upper plate 167a and a lower plate 167b parallel to each other. Fig. 29 shows a timing when the holding member 161 holding the slider 3 is raised to the mounting position. At this time, the fastener chain 10 exposed between the 1 st conveyance guide 165a and the 2 nd conveyance guide 165b is lifted by the slider 3, and tension is applied to the fastener chain 10. In the fastener chain 10, a 1 st step portion 1d that ascends downstream is generated between the 1 st conveying guide 165a and the fastener chain 10, and a 2 nd step portion 1e that descends downstream is generated between the fastener chain 10 and the 2 nd conveying guide 165 b. At the time of fig. 29, the lower surfaces of the

upper plates

166a and 167a of the 1 st and 2 nd conveyance guides 165a and 165b are located slightly below the upper end of the slider 3 located at the mounting position in the vertical direction. When the piercing portion 13 reaches the 1 st step portion 1d from the time point of fig. 29, the lifting of the slider 3 to the fastener chain 10 is interrupted by the piercing portion 13, and the tension is relaxed. Thereby, the piercing portion 13 descends and is guided into the left shoulder opening 3a of the slider 3.

In the above embodiment, the holding member 161 is disposed so that the slider 3 held by it is parallel to the fastener chain 10, and moves between the initial position and the attachment position in this state. The present invention is not limited to the above embodiment. Fig. 30 and 31 are side explanatory views showing an example in which the retaining member 161 and the slider 3 are tilted with respect to the fastener chain 10 and the slider 3 is inserted on one side. The holding member 161 is the same as that of the

embodiments

1 and 2 except that it is inclined with respect to the fastener chain 10, and therefore the same reference numerals are used. In fig. 30 and 31, the slider unilateral penetrating mechanism 121 according to embodiment 1, such as a pin 163, is used. In the initial position of fig. 30, the holding member 161 is inclined, whereby the slider 3 held by the holding portion 161a is also inclined, whereby the tab 4 coupled to the slider 3 can be brought into contact with the holding plate 161b on the downstream side of the holding member 161. By bringing the tab 4 into contact with the holding plate 161b in this way, the tab 4 can be kept stable without shaking. In this inclined state, the holding member 161 and the slider 3 are raised to the mounting position of fig. 31. Meanwhile, the pull tab 4 is kept in contact with the holding plate 161b without shaking. Next, as in embodiment 1, the pin 163 guides the piercing portion 13 to the left shoulder 3a of the slider 3. The above-described manner of inclining the holding member 161 and the slider 3 can also be applied to the

slider insertion mechanisms

121a, 121b, and 121c according to embodiments 2 to 4.

Fig. 32 and 33 are side explanatory views showing modifications of the slider single-side piercing mechanism 121c according to embodiment 4 described in connection with fig. 29. In this modification, the point that the 1 st feed guide 165a and the 2 nd feed guide 165b of the slider one-side piercing mechanism 121c are inclined with respect to the horizontal is different from the example of fig. 29, and the components other than this point are substantially common, and therefore the same reference numerals as in fig. 29 are given. Referring to fig. 32 and 33, the conveyance path partially defined by the 1 st conveyance guide 165a and the 2 nd conveyance guide 165b is inclined so as to gradually rise from the upstream side in the conveyance direction toward the downstream side in the conveyance direction. At the time of fig. 32, the holding member 161 at the initial position is in a state of holding the slider 3. The slider 3 is coupled to the pull tab 4. Next, as shown in fig. 33, when the holding member 161 is raised to the mounting position, the fastener chain 10 exposed between the 1 st conveyance guide 165a and the 2 nd conveyance guide 165b is lifted by the slider 3, and tension is applied to the fastener chain 10. At this time, a step portion 1d is generated between the 1 st conveying guide 165a in the fastener chain 10 and the fastener chain 10. At the time of fig. 33, the downstream side end (the uppermost end) of the lower surface of the upper plate 166a of the 1 st conveyance guide 165a is slightly lower than the upper end of the slider 3 at the mounting position in the up-down direction. More specifically, a downstream end of the lower surface of the upper plate 166a is located slightly below a lower surface of a lower blade as an upper end of the slider 3 in the vertical direction. When the piercing portion 13 reaches the position of the step portion 1d from the time point of fig. 33, the lifting of the slider 3 to the fastener chain 10 is interrupted by the piercing portion 13, and the tension is relaxed. Thereby, the piercing portion 13 descends and is guided into the left shoulder opening 3a of the slider 3.

Claims

1. A slider unilateral penetrating mechanism for penetrating a slider (3) unilateral into one fastener stringer (1a) of a pair of fastener stringers (1a, 1a) constituting a fastener chain (10), the pair of fastener stringers (1a, 1a) having a spacer (11) including a penetrating portion (13) formed at regular intervals in a longitudinal direction, the slider unilateral penetrating mechanism (121, 121a, 121b, 121c) comprising:

a holding member (161, 161c) that holds the slider (3) and is movable between an initial position and an attachment position for attaching the slider (3) to the one fastener stringer (1 a); and

and a guide member (163, 165a, 165b, 170b, 173) that guides the through-hole portion (13) in the one fastener stringer (1a) that is moving downstream in the conveying direction and in which the element row (2) is in the open state, toward one shoulder opening (3a) of the slider (3) held by the holding member (161, 161c) located at the attachment position.

2. The slider unilateral feedthrough of claim 1, comprising:

a sensor (164) for detecting the perforated portion (13) or the spacer portion (11); a drive unit (162) that moves the holding members (161, 161c) between the initial position and the mounting position; and a controller (160) that activates the driving unit (162) when the sensor (164) detects the perforation unit (13) or the spacer unit (11).

3. The slider unilateral feedthrough according to claim 1 or 2, characterized in that:

after the piercing part (13) is guided, the guide member (163, 165a, 165b, 170b, 173) guides a fastener tape edge portion (1b) of the one fastener stringer (1a), which is adjacent to the piercing part (13) on the upstream side in the conveying direction, to one shoulder opening (3a) of the slider (3).

4. The slider unilateral feedthrough according to claim 1 or 2, characterized in that:

the holding member (161, 161c) is provided above or below the one fastener stringer (1a) in the vertical direction, and the guide member (163, 165a, 165b, 170b, 173) is provided on the opposite side of the holding member (161, 161c), that is, below or above the one fastener stringer (1a), and is provided on the upstream side in the conveying direction of the slider (3) held by the holding member (161, 161c) located at the attachment position.

5. The slider unilateral feedthrough of claim 4, wherein:

the holding members (161, 161c) are provided below the one fastener stringer (1a),

the guide member (163, 165a, 165b, 170b, 173) is provided above the one fastener stringer (1a),

The slider (3) held by the holding members (161, 161c) lifts the one fastener stringer (1a) on the downstream side in the conveying direction of the guide members (163, 165a, 165b, 170b, 173) upward at the attachment position,

when the guide member (163, 165a, 165b, 170b, 173) guides the piercing section (13) toward one shoulder opening (3a) of the slider (3) located at the attachment position, the lower end of the guide member (163, 165a, 165b, 170b, 173) is located below the upper end of the slider (3).

6. The slider unilateral feedthrough according to claim 1 or 2, characterized in that:

the guide member (163, 165a, 165b) is stationary.

7. The slider unilateral feedthrough according to claim 1 or 2, characterized in that:

the guide members (170b, 173) are movable.