CN107125856B - Helical fastener element punching device and method for manufacturing coupling head - Google Patents
Helical fastener element punching device and method for manufacturing coupling head Download PDFInfo
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- CN107125856B CN107125856B CN201610107223.7A CN201610107223A CN107125856B CN 107125856 B CN107125856 B CN 107125856B CN 201610107223 A CN201610107223 A CN 201610107223A CN 107125856 B CN107125856 B CN 107125856B
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- fastener element
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
Abstract
The invention provides a helical fastener element punching device and a helical fastener element engagement head manufacturing method, which can form a simple separation part capable of directly releasing the engagement between the fastener elements without operating a slider. Outer peripheral surfaces of first and second press rollers (31, 32) for pressing a fastener element forming wire material (1) with pressing teeth (51, 52) to form a coupling head (2) are provided with other pressing teeth (51A, 52A) having a height lower than the pressing teeth (51, 52) at a predetermined phase among phases at equal intervals in the circumferential direction of the plurality of pressing teeth (51, 52) for forming the coupling head (2).
Description
Technical Field
The present invention relates to a device for pressing a spiral fastener element and a method for manufacturing a coupling head of a spiral fastener element, and more particularly to a device for pressing a spiral fastener element for forming a coupling head on a wire material for forming a spiral fastener element used for a slide fastener having a simple separation portion and a method for manufacturing a coupling head of a spiral fastener element.
Background
Conventionally, there is known a slide fastener provided with a simple separation portion configured to: in an emergency, the intermediate portion of the fastener element row is directly pulled to the left and right without operating the slider, thereby releasing the engagement between the fastener elements (see, for example, patent document 1).
As shown in fig. 8, a slide fastener 7 described in patent document 1 includes: fastener stringers 5, 5 configured such that spiral fastener elements 4 are woven into the fastener stringers along side edge portions 3a of the pair of opposing fastener tapes 3; and a slider 6 for opening and closing the pair of fastener stringers 5, 5. In the spiral fastener element 4, the coupling head 2 of a part of the fastener element 4 of the fastener element row is cut off, or a part of the coupling head 2 is removed, or the coupling head 2 is melted to prevent the coupling of the fastener elements 4 to each other or to weaken the coupling force of the coupling heads 2 to each other, so that the easy separation portion 8 is formed.
Further, there is known a press machine which processes a coupling head, a reversing portion, and a sewing thread engaging groove of a fastener element forming wire material before winding the fastener element forming wire material around a mandrel to form a spiral fastener element (for example, see patent document 2).
Documents of the prior art
Patent document
Patent document 1: international patent publication No. WO2014/103001
Patent document 2: japanese examined patent publication No. 63-8902
Disclosure of Invention
According to the above patent document 1, although the shape of the fastener element forming the simple separation portion is described, a specific apparatus and a manufacturing method for forming such a fastener element are not described. In addition, in the fastener element in which the engaging head is cut off, there is a possibility that: the fastener elements of the cut-off portion may be detached from the side edge portions of the fastener tape, or sharp distal ends of the cut-off fastener elements may damage the base material of the periphery or the like. Further, the simple separation portion formed by melting and engaging the head portion is not preferable because the appearance is not good and the commercial value may be lowered.
According to the press machine described in patent document 2, after the coupling head, the inversion portion, and the sewing thread engaging groove are formed in advance in the fastener element forming wire material made of a monofilament made of a synthetic resin, the coupling head is arranged on one end side and the inversion portion is arranged on the other end side, and the spiral fastener element is formed by winding the coupling head around the mandrel. However, the press device does not consider the formation of the simple separation portion, and there is no description about a manufacturing method for forming the simple separation portion.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a helical fastener element pressing device and a method of manufacturing a coupling head of a helical fastener element, which can form a simple separation portion capable of directly releasing coupling between fastener elements without operating a slider.
The above object of the present invention is achieved by the following structure.
(1) A helical fastener element pressing device includes a pair of pressing rollers which rotate in synchronization with each other and each have a plurality of teeth formed on an outer peripheral surface thereof at equal intervals in a circumferential direction, and a fastener element forming wire material is fed between the pair of pressing rollers, whereby the plurality of teeth press the wire material to form a plurality of coupling heads of the fastener elements, wherein at a predetermined phase of a phase of the outer peripheral surface of the pressing rollers at equal intervals in the circumferential direction at which the plurality of teeth for forming the coupling heads are provided, other teeth having a height lower than the teeth are provided, or no teeth are provided.
(2) The device for pressing a helical fastener element according to (1), wherein a plurality of teeth for forming a plurality of engagement heads and a plurality of inverted portions of the fastener element are provided on the outer peripheral surface of the pair of pressing rollers, and at a phase adjacent to a predetermined phase among phases of the outer peripheral surface of the pressing roller at equal intervals in the circumferential direction, in which the plurality of teeth for forming the inverted portions are provided, other teeth having a height lower than the teeth are provided, or no teeth are provided.
(3) The device for pressing a helical fastener element according to (2), wherein at least four consecutive phases of a phase at equal intervals in a circumferential direction in which the plurality of pressing teeth for forming the engagement head are provided and a phase at equal intervals in a circumferential direction in which the plurality of pressing teeth for forming the inversion portion are provided on the outer circumferential surfaces of the pair of pressing rollers are provided, other pressing teeth having a height lower than the pressing teeth are provided, or no pressing teeth are provided.
(4) A method of manufacturing a coupling head of a fastener element using the helical fastener element pressing apparatus according to any one of (1) to (3), comprising a step of feeding a fastener element forming wire material between a pair of pressing rollers, whereby a plurality of pressing teeth press the wire material to form a plurality of coupling heads of the fastener element, and another pressing tooth presses the wire material to form another coupling head for constituting a simple separation portion.
(5) A method of manufacturing a coupling head of a fastener element using the helical fastener element pressing apparatus according to any one of (1) to (3), comprising a step of pressing a wire material by a plurality of pressing teeth by feeding the wire material for fastener element forming between a pair of pressing rollers to form a plurality of coupling heads of the fastener element, and a step of inserting the wire material between a pair of pressing rollers at a predetermined phase where the pressing teeth are not provided to form another coupling head for forming a simple separation portion.
According to the helical fastener element pressing apparatus and the helical fastener element coupling head manufacturing method of the present invention, since the other coupling head having a lower height than the corresponding extrusion element is provided or the extrusion element is not provided at a predetermined phase among phases having equal intervals in the circumferential direction of the plurality of extrusion elements for forming the coupling head on the outer circumferential surface of the pressing roller, the other coupling head having a weak coupling force or the other coupling head having no coupling force can be formed at a predetermined interval on the helical fastener element forming wire material. Thus, a simple separation portion in which the coupling force between the fastener elements is weak or no coupling force can be formed in the slide fastener.
Drawings
Fig. 1 is a plan view of a fastener element-forming wire material pressing device according to the present invention.
Fig. 2 is a perspective view of the fastener element forming wire material pressing apparatus shown in fig. 1, as seen from the front side thereof.
Fig. 3 is a perspective view of the fastener element forming wire material pressing apparatus shown in fig. 1, as viewed from the back side.
Fig. 4 is a front view showing a state where coupling heads are formed at a predetermined interval on a fastener element forming wire material by a pair of press rollers.
Fig. 5 is an enlarged view of a V-portion of fig. 4, showing a state in which a fastener element-forming wire material is pressed by a pressing tooth having a low height to form a coupling head portion having a weak coupling force.
Fig. 6 is a modification of the pair of press rolls, showing a state where a coupling head having a weak coupling force is formed from a fastener element-forming wire material by a press element having no height, and is an enlarged view of a V portion of fig. 4.
Fig. 7 is an enlarged perspective view of a main portion of a slide fastener in which a fastener element forming wire material having an engagement head is woven along a side edge portion of a fastener tape.
Fig. 8 is a front view of a conventional slide fastener having a simple separable portion.
Description of the reference numerals
1 slide fastener element-forming wire material
2 engaging head
2A other engaging head
4 spiral zipper teeth (zipper teeth)
7 zipper
8 simple separation part
9 reversal part
9A other reversal part
10 punching device
31 first punching roller (punching roller)
32 second punching roller (punching roller)
51. 52 extrusion teeth
51A, 52A other extrusion teeth
Detailed Description
Next, a pressing device for a spiral fastener element according to an embodiment of the present invention will be described in detail with reference to the drawings. The press machine 10 is used for forming the coupling heads 2 and 2A and the inverted portions 9 and 9A in the spiral fastener element-forming wire material 1 used for the slide fastener 7 having the simple separating portion 8 shown in fig. 7.
As shown in fig. 1 to 3, the pressing device 10 for a spiral fastener element according to the present embodiment includes a pair of pressing rollers 31 and 32. The pair of press rolls 31 and 32 includes an annular first press roll 31 rotatably supported by the drive shaft 11 and an annular second press roll 32 rotatably supported by the driven shaft 12. A drive gear 41 disposed around the drive shaft 11 is fixed to a side surface of the first press roller 31 coaxially with the first press roller 31, and a driven gear 42 disposed around the driven shaft 12 is fixed to a side surface of the second press roller 32 coaxially with the second press roller 32.
The drive shaft 11 and the driven shaft 12 are arranged parallel to each other with a fixed axial distance therebetween, and are supported by first and second support plates 13, 16.
The first press roller 31 and the drive gear 41, and the second press roller 32 and the first driven gear 43 are fastened by a fastening mechanism, not shown, and rotate integrally with each other.
With respect to the driving gear 41 and the driven gear 42 engaged with each other, the driven gear 42 is driven by the rotation of the driving gear 41, and the first punching roller 31 and the second punching roller 32 are rotated in opposite directions to each other in synchronization.
A plurality of press teeth 51 and 52 projecting at predetermined intervals are provided on the outer peripheral surfaces of the first press roll 31 and the second press roll 32, respectively, in a gear shape. Hereinafter, the plurality of pressing teeth 51 and 52 may be referred to as first pressing teeth 51 and 52. At least two (four in the embodiment shown in fig. 1 to 3) other pressing teeth 51A and 52A provided in a part of the phases at equal intervals in the circumferential direction in which the plurality of pressing teeth 51 and 52 are provided are set to be lower in height than the pressing teeth 51 and 52. Hereinafter, the other pressing teeth 51A and 52A may be referred to as second pressing teeth 51A and 52A. The other pressing teeth 51A and 52A may have no height, that is, may have no pressing teeth (see fig. 6).
Therefore, the other pressing teeth 51A, 52A are formed at: a predetermined phase among phases at equal intervals in the circumferential direction of the plurality of pressing teeth 51, 52 for forming the meshing head 2 and a phase adjacent to the predetermined phase among phases at equal intervals in the circumferential direction of the plurality of pressing teeth 51, 52 for forming the inversion portion 9 are provided.
The other pressing teeth 51A and 52A are provided in the same phase. That is, when the first press roller 31 and the second press roller 32 rotate, the other press teeth 51A and 52A rotate synchronously so as to face each other (see fig. 5).
The fastener element-forming wire material 1 is inserted between the elements 51, 52 and the other elements 51A, 52A and is pressed by synchronously rotating the first press roller 31 and the second press roller 32 which are disposed to face each other with a predetermined gap therebetween, whereby the fastener element-forming wire material 1 is partially deformed into a flat state at a predetermined interval, and the coupling heads 2, 2A and the inverted portions 9, 9A of the fastener elements are formed (see fig. 4).
The fastener element forming wire material 1 subjected to the partial flattening is wound in a spiral shape to form a spiral fastener element 4. As will be described in detail later.
In the pressing device 10, in order to form the coupling head 2 and the inverted portion 9 having appropriate shapes on the fastener element forming wire material 1, the clearance C between the teeth 51 and 52 (first teeth 51 and 52) and the other teeth 51A and 52A ( second teeth 51A and 52A) of the pair of pressing rollers 31 and 32 needs to be a predetermined clearance, and the teeth 51 and 52 and the other teeth 51A and 52A need to be opposed to each other. That is, the clearance C at the position where the first pressing teeth 51, 52 face is smaller than the clearance C at the position where the second pressing teeth 51A, 52A face. Therefore, although not described in detail in the present embodiment, the press apparatus 10 is provided with an inter-core adjustment mechanism and a circumferential adjustment mechanism for the press rolls 31 and 32.
The driven gear 42 further includes: a first driven gear 43 fixed to the second punching roller 32; and a second driven gear 44 rotatably fitted to a boss (boss) portion of the first driven gear 43 and disposed adjacent to the first driven gear 43 in the axial direction. The annular ring member 48 is fixed to the axially outer side of the first driven gear 43 by another fastening mechanism not shown.
A tension coil spring 47 is bridged over a pair of spring locking pins 45, 46 fixed to the outer peripheral surface of the ring member 48 and the side surface of the second driven gear 44, respectively. Thus, when the drive gear 41 is meshed with the driven gear 42, the first driven gear 43 and the second driven gear 44 are urged in different rotational directions from each other. Thus, the backlash variation generated when the distance L between the first and second press rollers 31 and 32 (the gears 41 and 42) is adjusted can be automatically adjusted, and the drive gear 41 and the driven gear 42 can be always meshed with each other with zero backlash.
Next, the formation of the spiral fastener element by the pressing device 10 will be described in detail with reference to fig. 4 and 5.
As shown in fig. 4 and 5, the fastener element-forming wire material 1 is fed between a pair of press rollers 31, 32 that rotate synchronously in opposite directions, while performing inter-core adjustment and phase adjustment. Therefore, by inserting and squeezing the fastener element forming wire material 1 between the squeezing teeth 51, 52 and 51A, 52A of the first and second punching rollers 31, 32, the fastener element forming wire material 1 is partially deformed into a flat state at a predetermined interval, and the coupling heads 2, 2A of the fastener elements are formed. Further, it is preferable that the fastener element forming wire material 1 is guided by the guide members 53 and 54 provided in front of and behind the first and second press rollers 31 and 32.
As shown in fig. 4 and 5, the compressed portion of the fastener element forming wire material 1 compressed by the high-height compression teeth 51 and 52 (first compression teeth 51 and 52) is formed into the coupling head 2 and the inverted portion 9 in a flat state (having a large projection in the width direction) having a large width. The compressed portion of the fastener element forming wire material 1 compressed by the low- height compression teeth 51A and 52A ( second compression teeth 51A and 52A) is formed into another coupling head portion 2A and another inversion portion 9A in a flat state (with a small projection in the width direction) with a small width, or another coupling head portion 2A and another inversion portion 9A in a non-flat state, that is, without deformation. The non-flat state, i.e., the non-deformed other engaging head 2A and the other reverse turning portion 9A, may be as follows: when the teeth 51A, 52A ( second teeth 51A, 52A) having a low height are present, the gap C at the position where the second teeth 51A, 52A face each other is slightly smaller than the thickness of the fastener element forming wire material 1 because of the low height, and thus the fastener element forming wire material 1 cannot be deformed.
Alternatively, the other engaging head 2A and the other reverse turning portion 9A in the non-flat state, that is, not deformed, may be formed as follows: as shown in fig. 6, since the second elements 51A and 52A do not have a height (i.e., no element is provided), the fastener element forming wire material 1 cannot be deformed.
As described above, the fastener element forming wire material 1 is inserted and pressed between the first pressing roller 31 and the second pressing roller 32, whereby the plurality of coupling heads 2 are continuously formed at fixed intervals (in a flat state with a large width) on the fastener element forming wire material 1, and two other coupling heads 2A and two other inverted portions 9A in a flat state with a small width are formed at predetermined intervals. Alternatively, two other engaging heads 2A and two other reversal portions 9A are formed without deformation.
As described later, when the coupling heads 2 in a flat state having a large width are coupled with each other, a large coupling force is obtained for the fastener elements 4 in which the fastener element forming wire material 1 is spirally wound. On the other hand, the engaging force when the other engaging head portions 2A in the flat state having a small width are engaged with each other becomes weaker than the engaging force of the engaging head portions 2 with each other, and the simple separating portion 8 is formed (refer to fig. 8). In fig. 8, although a gap is shown between the right and left fastener elements 4, in the present embodiment, the other coupling heads 2A in a flat state having a small width are engaged with each other, and therefore the gap cannot be seen. However, since the simple separating portion 8 is a starting point for causing the release of the engagement between the right and left fastener elements 4, a gap may be left between the other engagement heads 2A in a flat state having a small width as shown in the drawing. In this case, the other engaging heads 2A in the flat state having a smaller width are not in engagement with each other.
The fastener element-forming wire material 1 having the coupling heads 2, 2A and the inverted portions 9, 9A formed at predetermined intervals in this way is bent at substantially 180 ° at the positions of the coupling heads 2, 2A and the inverted portions 9, 9A as shown in fig. 7, and is sequentially woven into the side edge portion 3a of the fastener tape 3. Thereby, the wire material 1 is spirally wound to form the fastener element 4, and forms the fastener stringer 5 together with the fastener tape 3.
That is, the spiral fastener element 4 includes: an engagement head 2, 2A disposed on one end side of the fastener tape 3 and extending in the vertical direction; an upper leg portion 2B extending in the lateral direction from the upper end of the engaging head portion 2, 2A toward the fastener tape 3 side; reversing sections 9 and 9A directed downward from the end of the upper leg section 2B on the fastener tape 3 side; and a lower leg portion 2C extending in the lateral direction from the lower end of the inversion portions 9, 9A toward the opposite side of the fastener tape, and engaging the head portions 2, 2A, the upper leg portion 2B, the inversion portions 9, 9A, and the lower leg portion 2C in this order in a spiral shape.
At this time, it is not clear which of the portions pressed by the pressing teeth 51A and 52A is formed as the other engaging head portion 2A and the other reversing portion 9A is determined depending on the setting of the knitting machine. However, since the engaging head portion 2A and the reverse turning portion 9A formed by the press device 10 according to the present embodiment have the same shape as each other and are continuously formed at least four (not limited to four 4, but may be formed in an even number), two other engaging head portions 2A and two other reverse turning portions 9A are inevitably formed regardless of the order of installation on the knitting machine. Therefore, the knitting machine can be provided without worrying about the positions of the other engaging head 2A and the other reversing portion 9A, and the operation efficiency is improved.
The fastener element forming wire material 1 may be formed by spirally winding the fastener element 4 into a spiral shape and then sewing the fastener element along both side edge portions 3a of the fastener tape 3 with sewing thread.
As described above, according to the press-forming device 10 for a helical fastener element of the present embodiment, the outer peripheral surfaces of the first and second press rollers 31 and 32 for forming the coupling head 2 by pressing the fastener element forming wire material 1 with the pressing teeth 51 and 52 are provided with the other pressing teeth 51A and 52A having a height lower than that of the pressing teeth 51 and 52 or with no pressing teeth 51A and 52A at a predetermined phase among phases having equal intervals in the circumferential direction of the plurality of pressing teeth 51 and 52 for forming the coupling head 2, and thus a helical fastener element having the other coupling head 2A having a weak coupling force or the other coupling head 2A having no coupling force formed at a predetermined interval in the helical fastener element forming wire material 1 can be manufactured. Thus, the simple separating portion 8 in which the coupling force between the fastener elements 4 is weak or no coupling force is applied can be formed in the slide fastener 7.
Further, since the plurality of teeth 51, 52 for forming the plurality of coupling heads 2 and the plurality of inversed portions 9 of the fastener element 4 are provided on the outer peripheral surfaces of the first and second punching rollers 31, 32, and the other teeth 51A, 52A having a height lower than that of the teeth 51, 52 are provided or the teeth 51A, 52A are not provided in the phase adjacent to the predetermined phase among the phases at equal intervals in the circumferential direction of the plurality of teeth 51, 52 for forming the inversed portions 9, when the fastener element forming wire material 1 is formed into a spiral shape, the spiral processing can be performed without distinguishing the other coupling heads 2A and the other inversed portions 9A, and the production efficiency can be improved.
Further, at least four consecutive phases of a phase at equal intervals in the circumferential direction in which the plurality of pressing teeth 51, 52 for forming the mesh head portion 2 are provided and a phase at equal intervals in the circumferential direction in which the plurality of pressing teeth 51, 52 for forming the inversion portion 9 are provided on the outer circumferential surfaces of the first and second press rolls 31, 32, and either other pressing teeth 51A, 52A having a height lower than that of the pressing teeth 51, 52 or the pressing teeth 51A, 52A are not provided. Thus, since two other coupling heads 2A and two other inversion portions 9A are provided without fail, the fastener element-forming wire material 1 can be set in the knitting machine without worrying about the positions of the other coupling heads 2A and the other inversion portions 9A, and the operation efficiency can be improved.
Further, the method for manufacturing the coupling heads 2 and 2A of the fastener element 4 according to the present embodiment includes the steps of: by using the pressing device 10 of the spiral fastener element 4, the fastener element forming wire material 1 is fed between the pair of pressing rollers 31, 32, whereby the plurality of pressing teeth 51, 52 press the wire material 1 to form the plurality of coupling heads 2 of the fastener element 4, and the other pressing teeth 51A, 52A press the wire material 1 to form the other coupling heads 2A for constituting the simple separating portion 8. Thus, the simple separating portion 8 in which the coupling force between the fastener elements 4 is weak or no coupling force can be formed in the slide fastener 7.
Further, the method for manufacturing the coupling heads 2 and 2A of the fastener element 4 according to the present embodiment includes the steps of: the fastener element-forming wire material 1 is fed between the pair of press rollers 31, 32 by the press device 10 using the spiral fastener element 4, whereby the plurality of pressing teeth 51, 52 press the wire material 1 to form the plurality of coupling heads 2 of the fastener element 4, and the fastener element-forming wire material 1 is inserted between the pair of press rollers 31, 32 at a predetermined phase where no pressing tooth is provided to form the other coupling head 2A constituting the simple separation portion 8. Thus, the simple separation portion 8 in which the coupling force between the fastener elements 4 is weak or no coupling force is generated can be formed in the slide fastener 7.
The present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from the scope of the present invention.
Claims (5)
1. A helical fastener element punching apparatus (10) is characterized by comprising a pair of punching rollers (31, 32) which rotate synchronously with each other and are formed with a plurality of teeth (51, 52) on the outer peripheral surface thereof at equal intervals in the circumferential direction,
and by feeding a fastener element forming wire material (1) between the pair of press rolls, whereby the plurality of pressing teeth press the wire material to form a plurality of engaging heads (2) of fastener elements (4),
other press teeth (51A, 52A) having a height lower than that of the press teeth are provided at a predetermined phase among phases of the outer peripheral surface of the press roll, the phases being provided with the plurality of press teeth for forming the mesh head at equal intervals in the circumferential direction,
the other pressing teeth press the wire material to form other engaging head portions (2A) constituting a simple separating portion (8).
2. The device for pressing a spiral fastener element according to claim 1,
the pair of press rollers are provided on the outer peripheral surfaces thereof with the plurality of pressing teeth for forming the plurality of coupling heads (2) and the plurality of inversion portions (9) of the fastener elements,
the press roller is provided with a plurality of press teeth for forming the reverse rotation portion on the outer peripheral surface of the press roller, and the press teeth are provided with other press teeth having a height lower than that of the press teeth at a phase adjacent to the predetermined phase among phases at equal intervals in the circumferential direction of the plurality of press teeth.
3. The device for pressing a spiral fastener element according to claim 2,
at least four consecutive phases of a phase at equal intervals in the circumferential direction in which the plurality of pressing teeth for forming the meshing head are provided and a phase at equal intervals in the circumferential direction in which the plurality of pressing teeth for forming the reversing section are provided on the outer circumferential surfaces of the pair of press rolls are provided with other pressing teeth having a height lower than the pressing teeth.
4. A method for manufacturing a coupling head of a spiral fastener element, the method being a method for manufacturing a coupling head of a fastener element using the spiral fastener element pressing device according to any one of claims 1 to 3, comprising:
by feeding the fastener element-forming wire material between the pair of press rollers, the plurality of pressing teeth press the wire material to form a plurality of engaging heads of fastener elements, and the other pressing teeth press the wire material to form other engaging heads (2A) for constituting a simple separation portion (8).
5. A method for manufacturing a coupling head of a spiral fastener element, the method being a method for manufacturing a coupling head of a fastener element using the spiral fastener element pressing device according to any one of claims 1 to 3, comprising:
the wire material for forming fastener elements is fed between the pair of press rollers, whereby the plurality of pressing teeth press the wire material to form a plurality of engaging heads of the fastener elements, and the wire material is inserted between the pair of press rollers on the predetermined phase where the pressing teeth are not provided to form another engaging head (2A) for constituting a simple separation portion (8).
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| CN201610107223.7A CN107125856B (en) | 2016-02-26 | 2016-02-26 | Helical fastener element punching device and method for manufacturing coupling head |
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| US5164205A (en) * | 1990-03-07 | 1992-11-17 | Yoshida Kogyo K.K. | Apparatus for stamping monofilament for slider fastener coupling elements |
| JP2003102519A (en) * | 2001-10-01 | 2003-04-08 | Ykk Corp | Space former for slide fastener chain |
| CN101524206A (en) * | 2008-03-07 | 2009-09-09 | 福建浔兴拉链科技股份有限公司 | Zipper tooth collector and zipper sizing tooth remover using same |
| CN103040201A (en) * | 2011-09-28 | 2013-04-17 | 芊茂（浙江）拉链有限公司 | Sandwich type nylon double-sided tooth zipper and pull head and hot-pressing shaping method thereof |
| WO2014054100A1 (en) * | 2012-10-01 | 2014-04-10 | Ykk株式会社 | Space forming device, space forming method, and slide fastener fabrication method |
| CN104349693A (en) * | 2013-08-13 | 2015-02-11 | Ykk株式会社 | Space-forming apparatus |
| CN104705918A (en) * | 2013-12-16 | 2015-06-17 | Ykk株式会社 | Method for manufacturing zipper chain and zipper |
| CN105324052A (en) * | 2014-03-17 | 2016-02-10 | Ykk株式会社 | Stamping apparatus for wire rod used for molding fastener elements |
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