JPS5947074B2 - Multilayer stranded wire manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a multilayer stranded wire, and more particularly, to an apparatus for manufacturing a multilayer stranded wire characterized in that adjacent layers are twisted in opposite directions.

For example, as shown in FIG. Consider again the 37-strand wire with the fourth layer d (18 wires) of S twist.

As a conventional apparatus for producing such a multilayer twisted wire, the one shown in FIG. 6 is known.

A bobbin 101 for drawing out the center layer a is provided at the end, followed by a stranded wire flyer 102 for forming the second layer on the downstream side, a stranded wire flyer 103 for the third layer C, and a stranded wire flyer 103 for the fourth layer d. Twisted wire flyers 104 are arranged in sequence, and downstream of each stranded wire flyer are branching plates 105 and 107, respectively.
, 109, and further downstream there is a twisting die 106
, 108, 110 are arranged.

Each strand flyer, for example the fourth layer strand flyer 104
There are actually 18 bobbins that form the fourth layer d, and even if they are arranged in 3 rows of 6 bobbins as shown in the figure, they are placed far from the rotation axis of the stranded flyer. Since a considerable amount of weight was distributed, it had the disadvantage that high-speed rotation was not possible due to centrifugal force.

In addition, since the number of wire bobbins reaches 37 in total, the time and effort required to replace them is tedious, and process control such as storage and transportation of wire bobbins is also extremely complicated.

The present invention was made to eliminate the drawbacks of the prior art, and it is possible to strand stranded wire by using a multiple parallel yarn-wound bobbin in which a large number of strands are differentially cross-wound on one bobbin. By reducing the number of delivery bobbins mounted on the flyer of the machine to 2 to 3, and mounting them coaxially with the rotating shaft of the flyer, the number of revolutions of the flyer can be significantly increased. The present invention provides a novel multilayer stranded wire manufacturing device.

Next, an embodiment of the present invention will be described with reference to the drawings.

In Fig. 1, a indicates the central layer of wire, and following this delivery bobbin, a stranding device I forms the second layer, a stranding device 2 forms the third layer C, and a stranding device d forms the fourth layer. The stranding devices (1) are arranged in sequence.

Since each of these wire twisting devices has substantially the same configuration except for the number of wire bobbins mounted thereon, let us take the wire twisting device I as an example and illustrate it in an enlarged manner with reference to FIG.

In the figure, the bearing stand 1 has a disk-shaped drive side cradle 2.
is rotatably supported via a hollow boss portion 21 protruding from one side thereof, and a drive pulley 3 is attached to this hollow boss portion 21.
is fixed.

A boss portion 22 protrudes from the other side of the drive side cradle 2,
A bobbin center 5 is rotatably mounted here via a bobbin center bearing 4.

A bobbin brake 6, which is a circular friction member, is attached to the bobbin center 5 to appropriately brake the rotation of the bobbin center 5.

Opposing the drive side cradle 2, a similarly disc-shaped drawer side cradle 7 is rotatably supported by an underground roller 10 provided at the bottom, and the drive side cradle 2 is opposed by a cradle arm 11 extending parallel to the axis at the peripheral part. are integrally connected to form a stranding machine cradle.

Further, a dancer roller 12 is attached to the cradle arm 11.

This dancer roller 12 functions to eliminate variations in the tension of each strand applied to a twisting die 16, which will be described later, and to make the tension uniform.

A strand passing hole 7 is formed equiangularly on the periphery of the drawer side cradle 7.
3 is formed, and a hollow shaft 14 is inserted through a center hole 72 of a hollow boss portion 71 located at the center and fixed by a fixing screw 8.

A bobbin center 9 is attached to the end of the hollow shaft 14 on the same side as the driving side cradle 2, and a dividing plate 15 is attached to the opposite side.
51 is formed.

The number of wire splitting holes 151 is the number of strands to be split here, that is, six in the case of the twisted wire device I of this example.

Note that from the strand passing hole 73 of the drawer side cradle 7 to the branching hole 1
A guide roller 17 is attached on the way to 51.

Furthermore, a twisting die 16 is provided downstream of the branching plate 15.

Next, the operation of this wire twisting device I will be explained.

The hollow boss portion 21 of the drive side cradle 2 and the hollow shaft 14 coaxially coincide with each other, and the twisted wires flowing in from upstream, that is, the center layer a run there.

As clearly shown in Fig. 4, the bobbin 13 forming the second layer is made of six strands of wire that are continuously produced in a six-pull wire drawing machine or a six-pull extrusion process, and are thread-wound in parallel. The six strands of wire are supported between the bobbin centers 5 and 9 by the guide roller 12 as shown in FIG.
The strands are drawn out equiangularly as appropriate, pass through the strand passage hole 73, pass through the segment strand hole 151, and are formed as a second layer on the center layer a in the twisting die 16 by rotation of the cradle.

Since the actions of the wire twisting devices ① and ② are the same, further explanation will be omitted, but the adjacent cradles are rotated in opposite directions to each other, whereby each adjacent layer is twisted into S twist and Z twist as shown in Fig. 5. A multilayer stranded wire with alternating twists is produced.

To replace the bobbin, simply loosen the fixing screw 8 and pull out the hollow shaft 14 to the right in the figure. All you have to do is replace the two delivery bobbins.

As explained above, according to the present invention, (1) the number of bobbins to be fed out can be significantly reduced (for example, from 37 to 7 in the case of 37 strands), which saves labor in replacing bobbins; Since it is mounted coaxially with the rotating shaft of the cradle, the cradle can rotate at high speed, greatly improving the efficiency of stranded wire manufacturing.As the number of 41υ bobbins is reduced, process management such as storage and transportation is simplified. , (1
9. There are many advantages such as the tension of the wires in each layer is made uniform and each twisted layer is formed in an orderly manner without twisting or uneven twisting.

[Brief explanation of drawings]

FIG. 1 is a simplified side view showing a device according to an embodiment of the present invention, FIG. 2 is a side sectional view of the wire twisting device, FIG. 3 is a simplified view showing how the strands are pulled out from the bobbin, and FIG. FIG. 5 is a plan view showing a plurality of parallel yarn-wound bobbins used in the present invention; FIG.
The figure is a side view showing a conventional technique. a...Central layer, b...Second layer, C...
...Third layer, d...Fourth layer, 1...
・Bearing stand, 2...Drive side cradle, 3...
... Drive pulley, 5, 9 ... Bobbin center, 10 ... Under roller, 7 ... Drawer side cradle, 13 ... Delivery bobbin, 14
...Hollow shaft, 15...Segment plate, 16.
...twisting dice.

Claims (1)

[Claims] 1. A drive side cradle 2 having a hollow boss portion and rotationally driven via a drive pulley attached thereto;
A drawer side cradle 7 which is disposed opposite to the drive side cradle, has a hollow boss portion, is rotatably supported by an angular roller, and has a wire passing hole formed in its peripheral portion, and a hollow boss portion of the drawer side cradle. A hollow shaft 14 is inserted into the shaft so as to be freely advanced and retracted, and a dividing plate is attached to one end thereof, a plurality of parallel cheese bobbins 13 are rotatably supported between the driving side cradle and the hollow shaft, and the dividing line A multilayer stranded wire manufacturing device comprising a stranding die 16 provided downstream of the plate. 2. A drive side cradle which has a hollow boss part and is rotationally driven via a drive pulley attached thereto, and a drive side cradle which is disposed opposite to this drive side cradle and has a hollow boss part and is rotatable by an Ang roller. a drawer-side cradle that is supported and has a wire passage hole formed in its peripheral portion; a hollow shaft that is inserted into a hollow boss portion of the drawer-side cradle so as to be freely advanced and retractable; and a wire splitting plate is attached to one end of the hollow shaft; A plurality of wire twisting devices are arranged in the axial direction of the hollow shaft, each of which includes a plurality of parallel cheese-wound bobbins rotatably supported between the wire splitter and the hollow shaft, and a twisting die provided downstream of the dividing plate. 1. A multilayer stranded wire manufacturing device, wherein the cradle of each stranded wire device is sequentially driven one rotation in the opposite direction to the cradle on the upstream side.