JPH0520265B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for continuously molding elements for slide fasteners made of thermoplastic synthetic resin in a zigzag shape from a straight line.

Prior Art As an apparatus for forming continuous zigzag-shaped elements for slide fasteners from straight wires, an apparatus disclosed in Japanese Patent Application Laid-Open No. 61-238203 has already been proposed. It is easy to adjust, it is possible to maintain an accurate movement trajectory, and it is possible to continuously form zigzag-shaped elements on the circumferential surface of the die wheel while continuously rotating the die wheel.

Problems to be Solved by the Invention Although the production efficiency of zigzag elements has been significantly improved by the technology disclosed in JP-A No. 61-238203, only one zigzag element can be produced with one molding machine. There was still a problem in that it could not be done.

Purpose of the Invention Therefore, the purpose of the present invention is to dramatically increase the production efficiency of the zigzag-shaped elements by only making slight modifications to the molding apparatus disclosed in the above-mentioned publication and adding structural members. .

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention protrudes from two rows of protrusions in the circumferential direction of the peripheral surface, each consisting of a group of protrusions planted at a constant pitch. The protrusions in one row are arranged half a pitch apart from the protrusions in the other row, and a plurality of die wheels each having forming grooves running in the circumferential direction are formed on the circumferential surface between the rows of protrusions. A plurality of linear guide holes are fixed to a rotating single drive shaft in parallel in the same phase, are attached to a machine base, and individually face each peripheral surface of the plurality of die wheels. A single filament guide member disposed on the machine base, whose position can be freely adjusted in the generatrix direction of each circumferential surface, allows each filament guide hole to reciprocate in the generatrix direction of the circumferential surface of each die wheel. a first drive device including a guide rod; a second drive device including a guide block for reciprocating the guide rod in a direction perpendicular to the generatrix direction, the position of which is adjustable in the direction perpendicular to the generatrix direction; A guide holder is fixedly connected to the guide block to regulate the movement locus of the guide block, and the movement speed of the second drive device is twice that of the first drive device, and the movement speed of the second drive device is twice that of the first drive device. The rotational speed and the movement speed and movement distance of both the first and second drive devices are such that the movement locus of each of the linear guide holes corresponds to the pair of left and right protrusions of the two rows of protrusions on the circumferential surface of each die wheel. The grooves are aligned so as to form a vertically and horizontally symmetrical locus in an inverted figure-eight shape that continuously rotates, and in the outer peripheral area of each of the die wheels, there is a line extending from the filament guide member toward the front in the die wheel rotation direction. A configuration is adopted in which each die wheel is provided with a molding device having the same configuration for the element material wound around the projection row.

Effect In the present invention, since the plurality of parallel die wheels at the same position are fixed to the same drive shaft, they perform continuous rotation with exactly the same phase, and separate lines facing the circumferential surfaces of the individual die wheels are fixed to the same drive shaft. Since the strip guide holes are provided in a single strip guide member, when the strip guide member is driven by both the first and second drive members, individual dies are The filaments are individually supplied to the circumferential surface of the wheel while following exactly the same locus, and the filaments are simultaneously wrapped around the rows of protrusions on the circumferential surface of each die wheel in exactly the same shape, forming a zigzag pattern. The elements are molded individually and successively.

During this molding, adjusting the position of each filament guide hole in the guide rod and adjusting the mounting position of the guide block will prevent the accumulation of allowable dimensional errors during manufacturing in each molding device, and the fluctuation of the device due to the temperature of the working environment. The position of the locus of movement of each filament is accurately adjusted with respect to the row of protrusions of each die wheel in response to positional deviations caused by expansion and contraction.

Further, since the machine base is provided with a guide holder that regulates the movement locus of the guide block, the movement of the guide rod and the guide block becomes accurate and stable.

Furthermore, since a forming device is separately attached to the outer peripheral area of each die wheel, as each die wheel continuously rotates, a plurality of zigzag elements equal to the number of die wheels are formed by one device. manufactured at the same time.

Embodiment The drawings show an example of implementation, and FIG. 1 is a perspective view showing only the main parts broken away, and shows a plurality of die wheels continuously rotated by a drive device (not shown), in the illustrated example, the die wheels. Two rows of projections 5 and 6 consisting of groups of projections 3 and 4 implanted at a constant pitch P in the circumferential direction are protruded from the peripheral surfaces 2A and 2B of 1A and 1B, and one row of projections 5 is arranged to be shifted by half a pitch with respect to the other protrusion row 6.

The plurality of die wheels described above, die wheels 1A and 1B in the illustrated example, are fixed in parallel to a continuously rotating single drive shaft 55 shown in FIG. 17 so that the protrusions 3 and 4 occupy exactly the same phase. There is.

Circumferential surfaces 2A, 2 of the die wheels 1A, 1B described above
B is faced with a single filament guide member 8 having separate filament guide holes 7A and 7B for guiding straight filaments of thermoplastic synthetic resin to form a zigzag element. There is.

This filament guide member 8 has filament guide holes 7A, 7.
A first drive device 9 that reciprocates B in the generatrix direction G of the circumferential surfaces 2A and 2B of the die wheels 1A and 1B.
and a second drive device 10 that reciprocates the linear guide holes 7A, 7B in a tangential direction T perpendicular to the generatrix direction G of the circumferential surfaces 2A, 2B.

FIG. 2 shows the aforementioned first drive device 9 and second drive device 10 as a sectional view taken along the line in FIG. 1, and as shown in FIGS. 2 and 3, The linear guide member 8 is connected to an L-shaped guide piece 11 in which the linear guide holes 7A and 7B are formed.
It is composed of a letter-shaped connecting piece 12 and a guide rod 13 to which the connecting piece 12 is connected.
3 extends from the inside of the frame to the die wheels 1A, 1B side through the window hole 15 of the frame wall 14 of the machine base, and has a shape at its tip bent toward the die wheels 1A, 1B side as shown in FIG. An L-shaped connecting piece 12 is fixed with a bolt 16. The connecting piece 12 is adjusted in position in the axial direction of the guide rod, as shown by arrow C in FIG. 3, and then fixed with a bolt 16.

An L-shaped guide piece 11 is attached to the distal end arm 17 of the connecting piece 12, and the arm piece 18 in which the linear guide holes 7A and 7B are formed is connected to the circumferential surface 2A of the die wheels 1A and 1B.
The other arm piece 19 is fixed to the other arm piece 19 with a bolt 20 so as to be adjustable in position in the direction of the arrow D so as to face the arm piece 2B and adjust the distance therebetween.

The preferred position of the arm piece 18 is that its lower surface 18';
This is the position where the distance between the circumferential surfaces 2A, 2B of the die wheels 1A, 1B and the upper surfaces of the protrusions 3, 4 is narrower than the thickness of the filament 48.

The aforementioned guide rod 13 is attached to the frame wall 1 of the machine base.
The inner hole 22 of the guide block 21 passes through the window hole 15 of 4.
It is supported slidably in the directions of arrows E and F via a bearing 23, and its rear end 24 is connected to a first link 26 by a swivel bearing 25. This link 26 is connected to the eccentric pin 28 of the first input shaft 27 that is continuously rotated by a drive device (not shown), and causes reciprocating motion in the directions of arrows E and F described above.

This link 26, the first input shaft 27, etc. constitute the first drive device 9 described above.

The aforementioned guide block 21 is accommodated in a cross groove formed by a horizontal groove 31 and a vertical groove 32 formed in a guide holder 30 which is fixed to the inner surface of the frame wall 14 of the machine base with bolts 29. Vertical groove 3
It has a protrusion 33 that protrudes into the inside.

A swivel bearing 34 is rotatably coupled to this projection 33 by a pin 35, a second link 36 is coupled to this swivel bearing 34 via an adjustment nut 37 for position adjustment, and a second link 36 is coupled to this swivel bearing 34 via an adjustment nut 37 for position adjustment. The link 36 is connected to two of the first input shafts 27 by a drive device (not shown).
It is connected to the eccentric pin 39 of the second input shaft 38 which is continuously rotated at twice the rotational speed, causing reciprocating up and down movement in the directions of arrows I and J.

In order to allow this reciprocating movement in the directions of arrows I and J, the height H of the lateral groove 31 in which the guide block 21 is accommodated and the height h of the window hole 15 of the frame wall 14 described above are set as indicated by the arrow I. , the dimensions are set to allow reciprocating movement over a predetermined distance in the J direction.

In order to perform reciprocating motion in the directions of arrows I and J in a fixed position, the guide block 21 described above has guide posts 40 erected and fixed at four locations on the top, bottom, left and right. Guide holder 3 fixed to the frame wall 14 of the machine base
It is slidably inserted into the guide sliding hole 41 of No. 0 via a bearing 42.

The aforementioned protrusion 33, universal bearing 34, second link 36, second input shaft 38, etc. constitute the second drive device 10 described above.

The projection rows 5 and 6 of the die wheels 1A and 1B described above
A forming groove 4 running in the circumferential direction is formed on the circumferential surfaces 2A and 2B between the
3A and 43B are formed as shown in FIGS. 1, 2, and 3.

The left and right side walls 44 of these molding grooves 43A, 43B,
45, partition protrusions 46, 47 are formed protrudingly at positions corresponding to the respective protrusions 3, 4, and between the adjacent partition protrusions 46, 47, a linear mold is formed as described later. ing.

FIG. 8 is a skeleton showing the motion loci of the various members shown in FIGS. 1 and 2, in which the guide rod 13 reciprocates in the directions of arrows E and F due to the rotation of the first input shaft 27. Line guide holes 7A, 7B
are caused to reciprocate over a distance L simultaneously and in the same manner. This distance L is the distance between the outer end surfaces of the protrusions 3 and 4 on the die wheel 1 and the linear guide holes 7A and 7B.
is set to a distance that can be moved.

During the reciprocating motion of the guide rod 13 in the directions of the arrows E and F, the rotation of the second input shaft 38 causes the guide block 21 to reciprocate in the directions of the arrows I and J. The linear guide holes 7A, 7B of the guide rod 13, which are slidably supported in the block 21, are moved back and forth through a distance l. This distance l is the linear guide hole 7
A and 7B are set at a distance that allows them to go around both end surfaces of the pair of protrusions 3 and 4. In addition, in FIG. 8, the protrusion 4 is drawn in the same phase as the protrusion 3, but this is because the linear guide holes 7A and 7B
It is shown that during the cycle, the rotation of the die wheel 1 causes the protrusion 4, which was at a position shifted by half a pitch, to move to the phase where the protrusion 3 was present.

Note that the rotational speed of the die wheel 1, the movement speed and movement distance of the first drive device 9, and the second drive device 1
The motion speed and motion distance of 0 are as described below.
The movement locus of the linear guide hole is an inverted eight-shaped vertically symmetrical locus that continuously moves around the pair of left and right protrusions 3 and 4 in the two rows of protrusions 5 and 6 on the circumferential surface of the die wheel 1. It has been harmonized so that

Now, the filament guide holes 7A and 7B are connected to the die wheel 1.
When the first and second input shafts 27, 38 rotate, the eccentric pin 28 moves to 28-1, 28-2, and the eccentric pin 28 moves to 28-1, 28-2, As the pin 39 moves to 39-1, 39-2, the linear guide holes 7A, 7B simultaneously move to 7-1, 7-2 in the direction of arrow K, and the eccentric pin 28 moves to 28-3, 28-2. 4, and while the eccentric pin 39 moves to 39-3 and 39-4, the linear guide holes 7A and 7B move to 7-3 and 7-4 in the direction of arrow M, making one round around the protrusion 3. .

Similarly, the eccentric pins 28 are connected to 28-4, 28-
5, 28-6, the eccentric pin 39
It rotates once again from 39-1 to 39-4, and the filament guide holes 7A and 7B go around the protrusion 4 once as shown by arrows N and O, and the filament guide holes 7A and 7B follow an inverted 8-shaped trajectory. It is something to draw.

The position of this inverted figure 8-shaped trajectory may vary slightly in each molding device due to allowable dimensional errors during manufacturing or positional deviations caused by the expansion and contraction of various parts of the device due to the temperature of the working environment, so the guide rod 1
The adjustment of the positions of the linear guide holes 7A and 7B by the adjustment of the position of the guide block 21 by 3 adjusts the above-mentioned deviation to the normal position.

Figures 9 to 13 show the state in which straight filaments are engaged with protrusions 3 and 4 due to the movement of the filament guide holes 7A and 7B in the skeleton shown in Figure 8 in an inverted eight-shaped locus. The die wheel 1A is shown, and FIG. 9 shows the relationship between the filament 48 and the protrusions 3, 4 on the circumferential surface 2A of the die wheel 1A when the filament guide hole 7A is at the position 7A in FIG. In FIG. 10, the filament guide hole 7A is located at the position 7-1 in FIG. 8, and in FIG. 11, the filament guide hole 7A is located at the position 7-2 in FIG. , 12th
The figure shows the filament 48 when the filament guide hole 7A is at the position 7-3 in FIG. 8, and FIG. 13 shows the filament 48 when the filament guide hole 7A is at the position 7-4 in FIG. Protrusion 3,
It shows the relative position with 4. The filament 48 is the protrusion 4
Although the movement direction of the filament 48 is reversed, the operation is the same. The changes in the positions of the protrusions 3 and 4 from FIG. 9 to FIG. 13 are as follows:
This is a change due to continuous rotation of the die wheel 1A.

In addition, in the above-mentioned embodiment, the guide block 2
The guide post 40 provided in the guide block 21 is slidably inserted into the guide slide hole 41 of the guide holder 30 fixed to the frame wall 14 of the machine base with a bolt 29. is restrained only in the directions of arrows I and J and made to reciprocate, and as a result, the inner hole 22 of the guide block 21
The guide rod 13, which is slidably inserted therein, is restrained and reciprocated only in the directions of arrows E and F, and as a result, the linear guide holes 7A and 7B of the guide rod 13 are As shown in Fig. 8, it is possible to draw a vertically symmetrical locus in the shape of an inverted 8, and the filament guide holes 7A and 7B do not wobble during operation, so that the filament can be easily passed through the die wheel 1.
It can be reliably engaged with the protrusions 3 and 4 of A and 1B.

Further, the distance between the upper surfaces of the projections 3, 4 and the lower surface 18' of the arm piece 18 of the filament guide member 8 is stabilized at a predetermined constant distance.

FIG. 14 shows an element material 49 formed by the steps explained in FIGS. 9 to 13.
The filament 48, which is a straight wire, is formed into a zigzag shape.

This filament 48 is made of a thermoplastic synthetic resin such as polyester or polyamide, and when placed on the die wheels 1A, 1B from the state shown in FIG. 14, it forms a U-curve as shown in FIGS. Then, the rising portions 52 at the outer ends, which are inverted portions of the engaging head portion 50 and the leg portions 51, are heated and formed.

FIG. 17 is a front view of the entire molding device 54 for molding the zigzag elements 53 shown in FIGS. 15 and 16 in a continuous process. ,1B
are fixed in parallel so as to continuously rotate in the same phase, and the filament guide holes 7A, 7B of the filament 48 and the first drive device 9 face each other on the peripheral surfaces 2A, 2B. , a single filament guide member 8 consisting of a second drive device 10, etc. is disposed, and in front of the position of the filament guide member 8 in the rotational direction of the die wheels 1A, 1B indicated by arrow Q, as shown in FIG. In A, as shown for the die wheel 1A, the element material 4 hooked on the protrusions 3, 4
9, as shown by the chain line in FIG. 5B, the protrusions 3 and 4
A lifting device 56 is arranged for removing and raising the device.

As shown in FIG. 18, the above-mentioned lift device 56 has wedge pieces 75, 76, 7 at the tips of arms 72, 73, 74 extending from a support shaft 71 of a frame 70.
7 is attached, a wedge piece 76 is positioned between the die wheels 1A and 1B, a wedge piece 75 is positioned outside the die wheel 1A, a wedge piece 77 is positioned outside the die wheel 1B, and the fifth As shown in Figure B, the element material 49 is attached to the protrusion 3,
This is caused by removing it from 4.

A bending device 57 is disposed in front of the lift device 56 to push the element material 49 having the shape shown in FIG. ing. As shown in FIG. 5B and FIG. 19, this bending device 57 is arranged so that the die wheel 1
The element material 49 has folding round blades 59A and 59B that enter into the forming grooves 43A and 43B of A and 1B.
Make a continuous U-bend.

In FIG. 19, the alignment between the folding round blades 59A, 59B and the forming grooves 43A, 43B is finely adjusted by adjustment bolts 78, 79.

In the rotating direction of the die wheel 1, a heating device 60 is disposed in front of the bending device 57 to surround the peripheral surface 2 of the die wheel 1, and heats the U-bent element material 49 to a plastic deformation temperature.

A punch device 61 is arranged in front of the heating device 60 in the rotation direction of the die wheel 1 .

This punch device 61 includes die wheels 1A, 1
Punch 6 entering into forming grooves 43A and 43B of B
2A and 62B, and the engaging head 50 is pressed against the element material 49 in cooperation with the groove bottom 63 to form the element material 49, as shown in FIG. 6B.

FIG. 20 shows the punch device 61 and the die wheel 1.
It is a front view seen from the tangential direction of the circumferential surfaces 2A and 2B of A and 1B, and the punches 62A and 62B are fitted with bolts 8 to sleeves 81 eccentrically fitted to shafts 80.
2, and is driven by a drive device (not shown), and in FIG. 17, the pressing and molding retraction movements are performed while the die wheels 1A and 1B are continuously rotating, while drawing a trajectory indicated by an arrow R. repeat.

A folding device 64 is disposed in front of the punch device 61 in the rotational direction of the die wheel 1 .

As shown in FIGS. 17 and 21, this folding device 64 has molding grooves formed on the circumferential surfaces 66A and 66B of disk portions 65A and 65B that rotate by contact with a die wheel.
Guide flange 67 entering into 3A, 43B
A, 67B, and by the cooperation of the circumferential surfaces 66A, 66B and the circumferential surfaces 2A, 2B of the die wheels 1A, 1B, the rising portion 52 is broken and formed at the outer end of the inverted portion of the leg portion 51 of the element material 49. do.

The above-mentioned disk portions 65A, 65B and forming groove 43A,
43B, use adjustment bolts 83, 8.
4, 85, etc., and is fixed with a bolt 87 to a shaft rotatably supported by a bearing portion 86.

In the rotation direction of the die wheels 1A, 1B,
In front of the folding device 64, there is a die wheel 1.
A cooling device 68 is arranged around the circumferential surfaces of the die wheels 1A, 1B, and the circumferential surfaces 2A, 2B of the die wheels 1A, 1B,
Element materials 49 that have been variously molded in the molding grooves 43A and 43B are cooled and fixed into the shape of two zigzag elements 53.

The two molded zigzag elements 53 are taken out from the die wheels 1A, 1B by a discharge device 69.

In the embodiment described above, the first drive device 9 and the second drive device 10 employ an eccentric mechanism, but it goes without saying that this can be replaced with a cam mechanism. Guide block 21
Although the guide is a sleeve mechanism in which the rod slides within the sleeve, it is of course possible to replace this with a dovetail and groove mechanism.

In the embodiment described above, two die wheels 1
A and 1B are arranged side by side.Therefore, the lifting device 56, the folding device 57, the punching device 61, the folding device 64, and the ejecting device 69 also have two sets of operating parts, and two zigzag-shaped elements. Although they are manufactured simultaneously, it is of course possible to have three or more of the above-mentioned parts.

Effects The present invention has the configuration and operation described above, and even when a plurality of die wheels having two rows of protrusions on the circumferential surface that are shifted by half a pitch from each other are continuously rotated, each die wheel has a separate A single filament guide member having a filament guide hole facing the side reciprocates in the generatrix direction of the circumferential surface and reciprocates in the tangential direction of the circumferential surface at twice the speed, and the rotating speed of the die wheel and The motion velocity and motion distance in the generatrix direction and the tangential direction are such that the motion locus of the filament guide hole is an inverted eight-shaped locus that continuously revolves around a pair of left and right protrusions in two rows of protrusions on the circumferential surface of the die wheel. Since the die wheels are aligned so that the plurality of die wheels are continuously rotated, the filaments can be simultaneously and continuously engaged with the two rows of protrusions on the circumferential surface of each wheel in a zigzag shape,
Since multiple zigzag elements can be produced at the same time, production efficiency can be dramatically improved.

In addition, we also take into account fluctuations in the position of the inverted figure-eight locus of each filament that occur in each piece of equipment due to the accumulation of allowable dimensional errors during the manufacturing of the molding equipment, and positional deviations caused by the expansion and contraction of various parts of the equipment due to the working environment temperature. By adjusting the position of each filament guide hole in the guide rod and by adjusting the position of the guide block, it can be easily adjusted to accurately match the row of protrusions on the circumferential surface of each die wheel. This has the effect of maintaining accurate and stable movement of the block.

In addition to increasing the number of die wheels, the device also includes the wire guide hole forming portion of the wire guide member, the arm and wedge piece of the lift device, the disk portion of the bending device, the punch of the punch device, and the disk of the folding device. It suffices to increase the number of parts and the working parts of the discharge device by the number of die wheels, which also has the effect of reducing equipment costs.

[Brief explanation of drawings]

Figure 1 is a partially cutaway perspective view of the main part of an example of implementation, Figure 2 is a sectional view taken along the line in Figure 1, and Figure 3 is a cross-sectional view taken along the line in Figure 1.
The figures are an enlarged cross-sectional view taken along the line - in Fig. 2, Fig. 4 A is an enlarged front view of a part of the peripheral surface of the die wheel in a state where the filaments are hooked on the protrusions in a zigzag shape, and Fig.
FIG. 5A is a sectional view taken along the line B-B in Figure A, and FIG.
Figure B is a sectional view taken along line B-B in Figure 5A, and Figure 6A is an enlarged front view of a portion of the die wheel circumference showing the state in which the engaging head is formed within the molding groove on the die wheel circumference. Figure B is a sectional view taken along line B-B in Figure 6A, and Figure 7
Figure A is an enlarged front view of a part of the circumferential surface of the die wheel showing a state in which a rising part is formed at the connection inversion part of the leg part of the element material in the forming groove, and Figure B is an enlarged front view of a part of the circumferential surface of the die wheel. A sectional view taken along the line B, FIG. 8 is a skeleton of the device of the present invention, FIGS. 9 to 13 are enlarged front views of a part of the circumferential surface of the die wheel showing the state in which the filament is hooked to the protrusion in the order of steps, and FIG. 15 is an enlarged plan view of a molded zigzag element, FIG. 16 is a right side view of the element shown in FIG. 15, and FIG. 17 is an element equipped with the device of the present invention. FIG. 18 is a front view of the lift device, FIG. 19 is a plan view of the bending device, FIG. 20 is a front view of the punch device as seen from the tangential direction of the die wheel, and FIG. The figure is a plan view of the folding device. 1A, 1B: die wheel, 2A, 2B: peripheral surface, 3, 4: protrusion, 5, 6: protrusion row, 7A, 7
B: Linear guide hole, 8: Linear guide member, 9: First drive device, 10: Second drive device, 43A, 43
B: forming groove, 49: element material, 55: drive shaft, P: pitch, G: generatrix direction, T: tangential direction.

Claims (1)

[Claims] 1 Constant pitch P in the circumferential direction of the peripheral surfaces 2A and 2B
Two rows of protrusions 5 and 6 consisting of groups of protrusions 3 and 4 planted in are protruded, and the protrusions 3 in one row are arranged half a pitch apart from the protrusions 4 in the other row,
A plurality of die wheels 1A, 1B, in which forming grooves 43A, 43B running in the circumferential direction are formed on the circumferential surfaces 2A, 2B between the protrusion rows 5, 6, are connected to a single continuously rotating drive shaft 55. A plurality of linear guide holes 7A, 7B which are fixed in parallel in phase, are attached to the machine base, and individually face each peripheral surface 2A, 2B of the plurality of die wheels 1A, 1B. A single filament guide member 8 disposed on the machine base has filament guide holes 7A, 7B for each of the die wheels 1A, 2B, the position of which is adjustable in the generatrix direction G of each circumferential surface 2A, 2B. A first drive device 9 includes a guide rod 13 that reciprocates in the generatrix direction G of the circumferential surfaces 2A and 2B of the rotor 1B, and a guide block 21 that reciprocates the guide rod 13 in a direction T orthogonal to the generatrix direction G. , a second drive device 10 whose position is freely adjustable in the orthogonal direction T, and a guide holder 30 fixed to the machine base and regulating the movement locus of the guide block 21 are connected.
The speed of movement of the drive device 10 is twice that of the first drive device 9, and the rotation speed of the die wheels 1A, 1B and the speed of both the first and second drive devices 9, 10 are the same. The movement speed and the movement distance are defined as the movement locus of each of the linear guide holes 7A, 7B corresponds to the pair of left and right protrusions 3, 4 of the two rows of protrusion rows 5, 6 on the circumferential surfaces 2A, 2B of each die wheel 1A, 1B. The die wheels 1A,
In the outer peripheral area of the die wheel 1B, moldings having the same configuration are formed on the element material 49 wound around the protrusion rows 5 and 6 for each die wheel 1A and 1B, facing forward from the filament guide member 8 in the die wheel rotation direction Q. A device for forming continuous zigzag elements for slide fasteners.