CN109008090B - Zipper teeth forming device - Google Patents
Zipper teeth forming device Download PDFInfo
- Publication number
- CN109008090B CN109008090B CN201710440134.9A CN201710440134A CN109008090B CN 109008090 B CN109008090 B CN 109008090B CN 201710440134 A CN201710440134 A CN 201710440134A CN 109008090 B CN109008090 B CN 109008090B
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- Prior art keywords
- peripheral surface
- upper leg
- mandrel
- monofilament
- forming
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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
-
- 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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- Slide Fasteners (AREA)
- Wire Processing (AREA)
Abstract
The invention provides a zipper tooth row forming device, which can reduce the shape deviation of the upper leg part of a coil tooth and improve the forming property of the coil tooth. An upper leg forming section (60) of a fastener element row forming device (10) comprises: a rotating shaft (61) disposed substantially orthogonally to the spindle (42); and a disk-shaped rotary hammer (62) which is provided concentrically with the rotary shaft (61) and presses the monofilament (M) wound around the mandrel (42) to form a stepped portion (D), wherein the outer peripheral surface (63) of the rotary hammer (62) comprises: a 1 st inclined circumferential surface (64) formed on one side in the axial direction and constricted toward the one side in the axial direction; and a 2 nd inclined peripheral surface (65) which is formed on the other side in the axial direction, is narrowed toward the other side in the axial direction, and forms a stepped portion (D) by the 1 st inclined peripheral surface (64) of the rotary hammer (62).
Description
Technical Field
The present invention relates to a fastener element row forming apparatus for forming a fastener element row of a slide fastener.
Background
As a conventional fastener element row forming apparatus, there is known an apparatus for continuously forming a coil element by winding a monofilament in a coil shape around a core rope through a rod-shaped mandrel (mandrel) extending in a front-rear direction, the fastener element row forming apparatus including: a pair of screws disposed opposite to each other with a mandrel interposed therebetween; a coupling head forming part arranged with a base end part of the mandrel in the vertical direction; and an upper leg forming portion disposed behind the coupling head forming portion in the transfer direction, and the fastener element row forming device is used for forming a racket (socket) -type coil element (see, for example, patent document 1).
The upper leg forming portion described in patent document 1 includes a rotary shaft and a rotary weight provided at an end of the rotary shaft, and the rotary shaft is disposed substantially perpendicular to the mandrel. The rotary hammer is formed in a circular truncated cone shape, and the inclined peripheral surface thereof presses the upper leg portion of the coil element to form a stepped portion in the upper leg portion. Further, flat portions and arc surface portions bulging in an arc shape are alternately formed in the circumferential direction on the inclined circumferential surface of the rotary hammer.
As another conventional fastener element row forming apparatus, there is known an apparatus including: a bean (beans) -type coil fastener element is formed by cutting a part of a screw portion of one of a pair of screws at an end portion of the screw and providing an upper leg forming portion at the cut portion (see, for example, reference 2).
The upper leg portion forming portion described in patent document 2 has an eccentric protrusion portion provided integrally with a shaft portion of the screw, and the eccentric protrusion portion rotates in synchronization with the rotation of the screw, whereby the tip end of the eccentric protrusion portion presses the upper leg portion of the coil element to form a recess in the upper leg portion.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open No. 2000-94535
Patent document 2: chinese utility model registration No. 2637159
Disclosure of Invention
However, in the fastener element row molding device described in patent document 1, since there is some variation in the shape of the stepped portion formed in the upper leg portion of the coil element, there is room for improvement in the moldability of the coil element.
In the fastener element row molding device described in patent document 2, since the coil element is intermittently pressed by the eccentric protrusion, a molding failure of the coil element occurs if the pressing timing is missed.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a fastener element row forming apparatus capable of reducing variations in the shape of the upper leg portion of a coil element and improving the formability of the coil element.
The above object of the present invention is achieved by the following configurations.
(1) A fastener element row forming apparatus for continuously forming a coil-shaped fastener element row from a continuous synthetic resin monofilament, comprising: a mandrel extending in a rod shape; a pair of screws which are disposed opposite to each other with a mandrel interposed therebetween, and which transfer the monofilament wound around the mandrel while maintaining a coil shape; an engagement head forming part for forming an engagement head of a coil element on a monofilament wound around a mandrel; and an upper leg forming part for forming an upper leg of the coil element on a monofilament wound around the mandrel, the upper leg forming part including: a rotating shaft disposed substantially orthogonally to the spindle; and a disk-shaped rotary hammer which is provided concentrically with the rotary shaft and presses the monofilament wound around the mandrel to form a stepped portion or a recess, wherein the outer peripheral surface of the rotary hammer comprises: a 1 st inclined circumferential surface formed on one side in the axial direction and constricted toward the one side in the axial direction; and a 2 nd inclined circumferential surface formed on the other side in the axial direction and narrowed toward the other side in the axial direction, and the stepped portion or the recess is formed by rotating the 1 st inclined circumferential surface of the hammer.
(2) The fastener element row forming apparatus according to the above (1), wherein a plurality of recesses are formed on the outer peripheral surface of the rotary hammer at substantially equal intervals in the circumferential direction.
(3) The fastener element row forming apparatus according to the item (2), wherein the concave portion is formed in an arc shape.
(4) The fastener element row forming apparatus according to any one of (1) to (3), wherein the outer peripheral surface of the rotary hammer further has a flat peripheral surface that is disposed between the 1 st inclined peripheral surface and the 2 nd inclined peripheral surface and that is formed parallel to the axial direction of the rotary shaft.
Effects of the invention
According to the element row forming device of the continuous element row forming device for the slide fastener of the present invention, the upper leg forming portion includes: a rotating shaft disposed substantially orthogonally to the spindle; and a disk-shaped rotary hammer which is provided concentrically with the rotary shaft and presses the monofilament wound around the mandrel to form a stepped portion or a recess, wherein the outer peripheral surface of the rotary hammer comprises: a 1 st inclined circumferential surface formed on one side in the axial direction and constricted toward the one side in the axial direction; and a 2 nd inclined circumferential surface formed on the other side in the axial direction and narrowed toward the other side in the axial direction, and the stepped portion or the recess is formed by rotating the 1 st inclined circumferential surface of the hammer, so that it is possible to reduce variations in the shape of the upper leg portion of the coil element and improve the formability of the coil element.
Drawings
Fig. 1 is a schematic configuration diagram illustrating a fastener element row forming apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic side view illustrating the element forming part shown in fig. 1.
Fig. 3 is a plan view illustrating the operation of the pair of screws shown in fig. 1.
Fig. 4 is a sectional view illustrating the operation of the engaging head forming portion shown in fig. 1.
Fig. 5 is a sectional view illustrating the operation of the rotary hammer of the upper leg forming unit shown in fig. 1.
Fig. 6 is a perspective view illustrating the rotary hammer shown in fig. 5.
Fig. 7 is an enlarged perspective view of a main portion illustrating the outer peripheral surface of the rotary hammer shown in fig. 6.
Fig. 8 is a perspective view of a rotary hammer for explaining embodiment 2 of the fastener element row molding device of the present invention.
Fig. 9 is an enlarged side view illustrating a main portion of the rotary hammer shown in fig. 8.
Fig. 10 is a sectional view illustrating the operation of the rotary hammer of the upper leg forming portion shown in fig. 8.
Description of the reference numerals
10 zipper tooth row forming device
20 monofilament supply part
30 winding part
40 element forming part
41 mandrel holder
42 mandrel
43 screw rod
50 engaging head forming portion
51 punch die (die)
52 engaging head forming hammer
53 rotating shaft
54 pressing roller
60 upper leg forming part
61 rotating shaft
62 rotating hammer
63 outer peripheral surface
64 st inclined circumferential surface
65 nd 2 nd inclined peripheral surface
66 flat peripheral surface
67 recess
70 upper leg forming part
71 rotating shaft
72 rotary hammer
73 outer peripheral surface
74 st inclined circumferential surface
75 nd 2 nd inclined peripheral surface
76 flat peripheral surface
E coil zipper tooth
H-engaging head
La upper leg part
D layer difference part
R recess
J connection part
S-core rope
M monofilament
Detailed Description
Hereinafter, each embodiment of the fastener element row forming apparatus of the present invention will be described in detail based on the drawings. In the following description, the front side refers to the left side with respect to the paper surface of fig. 1, the rear side refers to the right side with respect to the paper surface of fig. 1, the upper side refers to the upper side with respect to the paper surface of fig. 1, the lower side refers to the lower side with respect to the paper surface of fig. 1, the left side refers to the front side with respect to the paper surface of fig. 1, and the right side refers to the back side with respect to the paper surface of fig. 1. The rear side is a direction in which the formed fastener element rows are discharged. The longitudinal direction is parallel to the axial direction when the monofilament is wound in a coil shape around the core rope. The front-back and left-right directions are parallel to the horizontal plane, and the up-down direction is parallel to the vertical direction (gravity direction) perpendicular to the horizontal plane.
(embodiment 1)
First, embodiment 1 of a fastener element row forming apparatus according to the present invention will be described with reference to fig. 1 to 7.
The fastener element row forming apparatus 10 of the present embodiment conveys both the continuous core thread S and the continuous synthetic resin monofilament M in a synchronized state, and continuously forms a coil-shaped fastener element row by winding the monofilament M around the core thread S using a mandrel 42 described later.
The monofilament M is continuously wound around a bobbin (spool)21 of a later-described monofilament supply portion 20 constituting a part of the fastener element row forming device 10. The bobbin 21 is disposed on the front side of the fastener element row forming device 10, and the monofilament M is conveyed from the front side to the rear side of the fastener element row forming device 10. Then, the monofilament M and a core wire S of a winding part 30 described later constituting a part of the fastener element row forming apparatus 10 are introduced into a portion after the pair of screws 43 in a synchronized state, thereby forming a coil element E wound in a coil shape around the core wire S, and the fastener element row is continuously discharged from the fastener element row forming apparatus 10. Further, the fastener element row is also referred to as a continuous element row.
As shown in fig. 1, the fastener element row forming apparatus 10 includes: a filament supply part 20 for supplying the filaments M; a winding part 30 for winding the monofilament M in a coil shape on the mandrel 42 while guiding the core rope S to the center of the device; and an element forming part 40 for forming the engaging head H of the coil element E and the upper leg La of the monofilament M wound around the mandrel 42.
The filament supplying section 20 includes: a cylindrical bobbin 21 on which the monofilament M is continuously wound and which is placed on the table with its axis vertical; a flyer (flyer)22 supported by an upper end portion of the bobbin 21 so as to be rotatable in a horizontal direction with an axial center of the bobbin 21 as a rotation center, for guiding the monofilament M led out from the bobbin 21 to an extension line of the axial center of the bobbin 21; and a guide roller 23 disposed above the bobbin 21, for converting the direction of the monofilament M guided out in the vertical direction into the front-rear direction and guiding the monofilament M to the winding unit 30.
The winding part 30 includes: a rectangular base 31 mounted on the table top; a hollow rectangular frame 32 mounted on and fixed to the base 31; a pair of front and rear rotating bodies 33 each having a filament guide hole 33a through which the filament M is inserted and disposed on front and rear wall portions of the frame 32; a pair of front and rear monofilament guide bodies 34 that rotate integrally with the front and rear rotating bodies 33; a core rope bobbin 35 mounted on the axial center of the monofilament guide 34 on the front side and continuously winding the core rope S; a core rope pulling body 36 for guiding the rotary body 33 and the monofilament guide body 34 on the rear side of the core rope S pulled out from the core rope bobbin 35; and a guide stay 37 that is erected between the guide roller 23 of the filament supplying section 20 and the frame 32 of the winding section 30 and guides the filament M to the rotating body 33 on the front side.
The pair of rotating bodies 33 are driven to rotate in synchronization with each other by a drive source not shown. A monofilament guide hole 37a for guiding the monofilament M is provided at the upper end of the guide stay 37. Further, filament guide holes, not shown, which communicate with the filament guide holes 33a of the rotary body 33 are provided in the outer peripheral edge portions of the filament guide bodies 34, which face each other. Thus, by rotating the rotating bodies 33, the monofilament M is continuously wound around the mandrel 42 of the element forming portion 40 in a coil shape on the device rear side while being drawn out from the device front side through the bobbin 21 of the monofilament supply portion 20. Further, the monofilament guide hole 37a of the guide stay 37 is formed substantially concentrically with the axial center of the spindle 42.
As shown in fig. 1 to 5, the element molding portion 40 includes: a conical mandrel holder 41 connected and attached to the axis of the rotating body 33 on the rear side of the winding part 30; a spindle 42 held by the spindle holder 41 and extending in a rod shape from a front end of the spindle holder 41 toward a rear side; a pair of left and right screws 43 disposed opposite to each other in the left-right direction with the mandrel 42 interposed therebetween, and configured to transfer the monofilament M wound around the mandrel 42 while maintaining a coil shape; a coupling head forming part 50 disposed on the base end side of the mandrel 42, for forming a coupling head H of the coil element E on the monofilament M wound around the mandrel 42; and an upper leg part molding part 60 disposed at the rear side of the coupling head part molding part 50, for molding an upper leg part La of the coil element E on the monofilament M wound around the mandrel 42. Note that reference symbol Lb shown in fig. 4 denotes a lower leg portion. The rotary body 33 of the winding part 30, the pair of right and left screws 43, the meshing head forming part 50, and the upper leg forming part 60 are configured to be driven to rotate in synchronization with each other.
As shown in fig. 4, the mandrel 42 has a rectangular cross-sectional core rope guide groove 42a formed along the longitudinal direction (front-rear direction) on one side surface thereof for guiding the core rope S, and the mandrel 42 is formed in a substantially コ -shaped cross section. The core guide groove 42a is formed from a base end portion thereof to the vicinity of the upper leg forming portion 60 along the longitudinal direction of the mandrel 42. Further, the upper leg forming portion 60 and the subsequent portion of the mandrel 42 are formed into a substantially L-shaped cross section as shown in fig. 5.
As shown in fig. 2 to 5, the screw 43 includes: a screw shaft 44 that is rotationally driven by a not-shown rotational drive source; and a cylindrical screw portion 45 which is provided concentrically and integrally with the screw shaft 44 and rotates in synchronization with the screw shaft 44. A screw groove 45a is formed in a spiral shape on the outer peripheral surface of the screw portion 45.
As shown in fig. 3, the right screw 43 is disposed to extend to the front side in the front-rear direction than the left screw 43, and the left and right screws 43 are disposed offset (offset) in the front-rear direction. By this offset arrangement, the entry space of the monofilament M is ensured. Further, the right screw 43 is an upper screw in fig. 3 and is a left screw in fig. 4, and the left screw 43 is a lower screw in fig. 3 and is a right screw in fig. 4.
As shown in fig. 2, a part of the screw portion 45 of the right screw 43 is cut out in the front-rear direction so as to leave the screw shaft 44, and the upper leg portion forming portion 60 is disposed in the cut-out portion. Thus, the upper leg portion forming portion 60 is disposed without interfering with the screw 43.
As shown in fig. 2 and 4, the engaging head forming portion 50 includes: a die (die)51 disposed above the mandrel 42, a meshing head forming hammer 52 disposed below the mandrel 42, and a drive shaft 58 for rotationally driving the meshing head forming hammer 52. The die 51 and the coupling head forming hammer 52 are disposed so as to have a holding space for the coupling portion J of the coil element E and a forming space for the coupling head H, respectively, between the die and the mandrel 42.
The die 51 is supported by a support frame, not shown, and a portion of the monofilament M wound around the mandrel 42, which becomes the coupling portion J of the coil element E, is sandwiched between the die 51 and the mandrel 42. The die 51 is configured to have sufficient rigidity to receive the pressing force from the coupling head forming weight 52 at the time of forming the coupling head H of the coil element E.
As shown in fig. 4, the engaging head forming hammer 52 has: a cylindrical rotating shaft 53 whose axis is parallel to the left-right direction and arranged substantially orthogonal to the spindle 42; and a disk-shaped pressing roller 54 which is provided concentrically and integrally with the rotary shaft 53 and presses the monofilament M wound around the mandrel 42. The engaging head forming hammer 52 is disposed opposite to the die 51 via the mandrel 42.
As shown in fig. 2 and 5, the upper leg portion forming portion 60 includes: a rotating shaft 61 disposed substantially orthogonally to the spindle 42; and a disk-shaped rotary weight 62 integrally provided at the tip of the rotary shaft 61 concentrically therewith, for pressing the monofilament M wound around the mandrel 42 to form a step D in the upper leg La of the coil element E. The upper leg forming portion 60 is disposed on the right side of the mandrel 42.
As shown in fig. 5, the rotation axis 61 of the upper leg forming portion 60 is inclined with respect to the horizontal plane and is disposed substantially perpendicular to the mandrel 42. In other words, the rotation axis 61 of the upper leg forming portion 60 is disposed parallel to a plane defined by the vertical direction and the horizontal direction and intersects both the vertical direction and the horizontal direction. The upper leg portion forming portion 60 of the present embodiment is suitably used for forming a racket-shaped coil fastener element. The racket-shaped coil element is a coil element having a stepped portion D formed in the upper leg portion La.
As shown in fig. 5 and 6, the outer peripheral surface 63 of the rotary hammer 62 includes: a 1 st inclined circumferential surface 64 formed on the axial front end side (one side) of the rotary shaft 61 and narrowed toward the axial front end side; a 2 nd inclined circumferential surface 65 formed on the axial base end side (the other side) of the rotating shaft 61 and narrowed toward the axial base end side; and a flat peripheral surface 66 disposed between the 1 st inclined peripheral surface 64 and the 2 nd inclined peripheral surface 65 and formed parallel to the axial direction of the rotating shaft 61. The flat peripheral surface 66 may not be provided.
As shown in fig. 5, the axial dimension (thickness) of the 1 st inclined circumferential surface 64 is set to be larger than the axial dimension of the 2 nd inclined circumferential surface 65, and the area of the 1 st inclined circumferential surface 64 is larger than the 2 nd inclined circumferential surface 65.
As shown in fig. 5 to 7, a plurality of recesses 67 are formed at substantially equal intervals in the circumferential direction on the outer circumferential surface 63 of the rotary hammer 62. The recess 67 is formed so as to straddle both the 1 st and 2 nd inclined peripheral surfaces 64 and 65 with the flat peripheral surface 66 of the outer peripheral surface 63 as the center. The recess 67 is formed in an arc shape as viewed in the axial direction. Further, the plurality of recesses 67 may not be formed.
In the fastener element row forming apparatus 10 configured as described above, the pair of right and left screws 43 are rotationally driven by a drive source not shown, and thereby the rotary body 33 of the winding portion 30, the coupling head forming weight 52 of the coupling head forming portion 50, and the rotary weight 62 of the upper leg forming portion 60 are rotationally driven at high speed in synchronization with each other. By these rotations, the monofilament M fed upward from the bobbin 21 of the monofilament supply portion 20 is reversed rearward via the guide roller 23. Then, the monofilament M is inserted through the monofilament guide holes 33a of the pair of front and rear rotary bodies 33 and wound around the mandrel 42 extending rearward.
Then, the monofilament M wound around the mandrel 42 is formed into a coil shape at a predetermined pitch interval by the rotation of the pair of right and left screws 43 and is transferred to the rear side. During this transfer, the monofilament M is restricted to a spiral shape in the screw groove 45a, the pitch of the coil shape gradually increases, and the coil elements E are arranged at a predetermined pitch at a predetermined transfer distance.
Thereafter, the monofilament M formed into a coil shape first reaches the coupling head forming portion 50, and is pressed by the outer peripheral surface of the pressing roller 54 of the coupling head forming weight 52 of the coupling head forming portion 50, thereby forming the coupling head H for each coil element E.
Subsequently, the coiled monofilament M formed with the engaging head H is further conveyed to the rear side by the pair of right and left screws 43, and reaches the upper leg forming portion 60. At this time, the rotary weight 62 of the upper leg forming portion 60 presses the upper leg La of each coil element E, thereby forming the stepped portion D in the upper leg La. The stepped portion D of the upper leg La is formed by the 1 st inclined circumferential surface 64 of the rotary weight 62. Therefore, the variation in the shape of the upper leg portion La of the coil element E can be reduced, and the formability of the coil element E can be improved.
As described above, according to the fastener element row forming apparatus 10 of the present embodiment, the outer peripheral surface 63 of the rotary weight 62 of the upper leg forming portion 60 has the 1 st inclined peripheral surface 64 and the 2 nd inclined peripheral surface 65, and the step portion D is formed in the upper leg portion La by the 1 st inclined peripheral surface 64 of the rotary weight 62, so that it is possible to reduce the variation in the shape of the upper leg portion La of the coil element E and improve the formability of the coil element E. Therefore, since the shape of each coil element E can be uniformly molded, the slidability of the slider of the finally produced slide fastener can be improved.
In addition, according to the fastener element row forming apparatus 10 of the present embodiment, since the plurality of recesses 67 are formed on the outer peripheral surface 63 of the rotary weight 62 at substantially equal intervals in the circumferential direction, it is possible to further reduce variations in the shape of the upper leg portion La of the coil element E.
Further, according to the fastener element row forming apparatus 10 of the present embodiment, the concave portion 67 formed in the outer peripheral surface 63 of the rotary weight 62 is formed in an arc shape, so that the variation in the shape of the upper leg portion La of the coil element E can be further reduced.
(embodiment 2)
Next, embodiment 2 of the fastener element row molding device of the present invention will be described with reference to fig. 8 to 10. Note that, for the same or equivalent portions as those in embodiment 1, the same or equivalent reference numerals are given to the drawings, and the description thereof is omitted or simplified.
In the present embodiment, an upper leg forming portion 70 shown in fig. 8 and 9 is used instead of the upper leg forming portion 60 of embodiment 1. As shown in fig. 8 and 9, the upper leg forming portion 70 includes a rotary shaft 71 and a disk-shaped rotary weight 72, as in the upper leg forming portion 60 of embodiment 1. The upper leg portion forming portion 70 of the present embodiment is suitably used for forming a bean-shaped coil fastener element. The bean-shaped coil fastener element is a coil fastener element having a recess R formed in the upper leg La.
As shown in fig. 9 and 10, the outer peripheral surface 73 of the rotary hammer 72 includes: a 1 st inclined circumferential surface 74 formed on the axial front end side (one side) of the rotary shaft 71 and narrowed toward the axial front end side; a 2 nd inclined circumferential surface 75 formed on the axial base end side (the other side) of the rotary shaft 71 and narrowed toward the axial base end side; and a flat peripheral surface 76 that is disposed between the 1 st inclined peripheral surface 74 and the 2 nd inclined peripheral surface 75 and that is formed parallel to the axial direction of the rotary shaft 71. The flat peripheral surface 76 may not be provided.
As shown in fig. 9, the axial dimension (thickness) of the 1 st inclined circumferential surface 74 is set to be substantially the same as the axial dimension of the 2 nd inclined circumferential surface 65, and the areas of the 1 st inclined circumferential surface 64 and the 2 nd inclined circumferential surface 65 are substantially the same. Further, a plurality of recesses similar to those of embodiment 1 described above may be provided on the outer peripheral surface 73 of the rotary hammer 72.
In the present embodiment, the rotary weight 72 of the upper leg forming portion 70 presses the upper leg La of each coil element E, thereby forming the recess R in the upper leg La. Further, the recess R of the upper leg La is formed by the 1 st inclined circumferential surface 74 of the rotary hammer 72. Therefore, the variation in the shape of the upper leg portion La of the coil element E can be reduced, and the formability of the coil element E can be improved.
As described above, according to the fastener element row forming apparatus 10 of the present embodiment, the outer peripheral surface 73 of the rotary weight 72 of the upper leg portion forming portion 70 has the 1 st inclined peripheral surface 74 and the 2 nd inclined peripheral surface 75, and the recess R is formed in the upper leg portion La by the 1 st inclined peripheral surface 74 of the rotary weight 72, so that it is possible to reduce the variation in the shape of the upper leg portion La of the coil element E and improve the formability of the coil element E. Therefore, since the shape of each coil element E can be uniformly molded, the slidability of the slider of the finally produced slide fastener can be improved.
Other structures and operational effects are the same as those of embodiment 1.
The present invention is not limited to the configurations illustrated in the above embodiments, and can be modified as appropriate without departing from the scope of the present invention.
For example, in each of the above embodiments, the driving sources of the rotating body of the winding portion, the pair of right and left screws, the coupling head forming portion, and the upper leg forming portion are the same, but the present invention is not limited thereto, and the driving sources may be provided independently.
Claims (4)
1. A fastener element row forming apparatus (10) for continuously forming a coil-shaped fastener element row from a continuous synthetic resin monofilament (M), comprising:
a mandrel (42) extending in a rod shape;
a pair of screws (43) which are disposed so as to face each other with the mandrel (42) therebetween, and which transfer the monofilament (M) wound around the mandrel (42) while maintaining a coiled shape;
a coupling head forming part (50) for forming a coupling head (H) of a coil element (E) on the monofilament (M) wound around the mandrel (42); and
an upper leg forming part (60, 70) that forms an upper leg (La) of the coil element (E) on the monofilament (M) wound around the mandrel (42),
the upper leg forming part (60, 70) comprises: a rotating shaft (61, 71) disposed substantially orthogonally to the spindle (42); and disk-shaped rotary weights (62, 72) that are provided concentrically with the rotary shafts (61, 71) and that press the monofilament (M) wound around the mandrel (42) to form a step (D) or a recess (R) in the upper leg (La) of the coil element (E),
the outer peripheral surface (63, 73) of the rotary hammer (62, 72) has: a 1 st inclined circumferential surface (64, 74) formed on one side in the axial direction and constricted toward the one side in the axial direction; a 2 nd inclined circumferential surface (65, 75) formed on the other axial side and constricted toward the other axial side; and a peripheral surface (66, 76) disposed between the 1 st inclined peripheral surface (64, 74) and the 2 nd inclined peripheral surface (65, 75),
forming the stepped portion (D) or the recess (R) by the 1 st inclined peripheral surface (64, 74) of the rotary hammer (62, 72),
a plurality of recesses are formed in the circumferential surface (66, 76) at intervals in the circumferential direction,
the recess is formed from the peripheral surface (66, 76) across both the 1 st inclined peripheral surface (64, 74) and the 2 nd inclined peripheral surface (65, 75).
2. The fastener stringer forming apparatus (10) according to claim 1,
the plurality of recesses are formed on the outer peripheral surfaces (63, 73) of the rotary hammers (62, 72) at substantially equal intervals in the circumferential direction.
3. The fastener stringer forming apparatus (10) according to claim 2,
the concave portion is formed in an arc shape.
4. The fastener stringer forming apparatus (10) according to any one of claims 1 to 3,
the circumferential surface (66, 76) is formed parallel to the axial direction of the rotary shaft (61, 71) and is flat.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312539.7A CN113827000B (en) | 2017-06-12 | 2017-06-12 | Zipper teeth forming device |
| CN201710440134.9A CN109008090B (en) | 2017-06-12 | 2017-06-12 | Zipper teeth forming device |
| TW106125977A TWI684419B (en) | 2017-06-12 | 2017-08-02 | Zipper chain tooth row forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710440134.9A CN109008090B (en) | 2017-06-12 | 2017-06-12 | Zipper teeth forming device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312539.7A Division CN113827000B (en) | 2017-06-12 | 2017-06-12 | Zipper teeth forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109008090A CN109008090A (en) | 2018-12-18 |
| CN109008090B true CN109008090B (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312539.7A Active CN113827000B (en) | 2017-06-12 | 2017-06-12 | Zipper teeth forming device |
| CN201710440134.9A Active CN109008090B (en) | 2017-06-12 | 2017-06-12 | Zipper teeth forming device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312539.7A Active CN113827000B (en) | 2017-06-12 | 2017-06-12 | Zipper teeth forming device |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN113827000B (en) |
| TW (1) | TWI684419B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591338A (en) * | 2019-01-28 | 2019-04-09 | 青岛正沃机械设备科技有限公司 | Slide fastener shaping apparatus |
| CN109512101A (en) * | 2019-01-28 | 2019-03-26 | 青岛正沃机械设备科技有限公司 | Slide fastener coupling element molding assembly and slide fastener shaping apparatus |
Citations (7)
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| GB1394735A (en) * | 1971-05-08 | 1975-05-21 | Yoshida Kogyo Kk | Apparatus for forming a continuous coil of fastening elements for sliding clasp fasteners |
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| US7285903B2 (en) | 2004-07-15 | 2007-10-23 | Honeywell International, Inc. | Display with bright backlight |
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- 2017-06-12 CN CN201710440134.9A patent/CN109008090B/en active Active
- 2017-08-02 TW TW106125977A patent/TWI684419B/en active
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| US3680604A (en) * | 1969-09-16 | 1972-08-01 | Opti Holding Ag | Apparatus for making a slide-fastener coupling coil |
| GB1394735A (en) * | 1971-05-08 | 1975-05-21 | Yoshida Kogyo Kk | Apparatus for forming a continuous coil of fastening elements for sliding clasp fasteners |
| CN85104322A (en) * | 1985-06-07 | 1987-01-14 | 卡尔·F·内格勒标准机械制造标准机械制造股份公司 | The device of convolving zipper continuous helix teeth |
| CN1168406C (en) * | 1998-09-22 | 2004-09-29 | Ykk株式会社 | Method and apparatus for making continuous interlocking member of slide fastener |
| CN2385869Y (en) * | 1999-08-04 | 2000-07-05 | 陈邦岸 | Improved of filament guiding device for chain forming machine |
| CN2569607Y (en) * | 2002-04-25 | 2003-09-03 | 陈宏安 | String tooth forming device of slider fastener shaper |
| CN2637159Y (en) * | 2003-08-08 | 2004-09-01 | 张志忠 | Shaping screw stem for manufacturing nylon sprocket |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI684419B (en) | 2020-02-11 |
| CN113827000A (en) | 2021-12-24 |
| CN113827000B (en) | 2022-11-18 |
| TW201902384A (en) | 2019-01-16 |
| CN109008090A (en) | 2018-12-18 |
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