JPS5926089B2 - A device that twists the peripheral wire around the center line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for twisting peripheral wires around a centerline.

For example, when manufacturing a wire with multiple conductors wound around a center wire, such as a telephone string, conventionally the bobbin that sends out the center wire and the bobbin that winds the product wire are simultaneously rotated in the same direction. The process of rotating the wire around its own axis, merging the peripheral wire in the middle of this rotating center line, and winding the peripheral wire around this center line is taken, but in this conventional device, the delivery bobbin and It is impossible to rotate the winding bobbin at high speed because the centrifugal force becomes excessive, and therefore there is a drawback that manufacturing efficiency is low.

The present invention has been made to eliminate such conventional drawbacks, and one embodiment thereof will be described with reference to the drawings.

A frame-shaped flyer 2 having a space inside is rotatably supported on the bearing bases IA and IB arranged opposite each other, and a floating frame 3 is rotatably suspended in this space with respect to the flyer 2'. be done.

Guide pulleys 21, 22, 2 along the periphery of the flyer 2
3, 24, 2526, 2T, and 28 are provided. Of these, the guide pulleys 21, 25 and 24, 28 are provided so that their groove outer peripheries are in contact with the rotational axis of the flyer 2. There is a center line w on floating frame 3.

The center line from which the center line W is sent out is provided rotatably around the axis of the delivery bobbin 4. is guided to the guide pulley 21 of the flyer 2 via a guide pulley 41 also mounted on the floating frame 3. On the opposite side of the floating frame 3 from the center line delivery bobbin 4, a winding device 9 and a take-up device 5 for the product stranded wire w are provided. A peripheral line sending device 6 consisting of a plurality of bobbins that sends out the peripheral line we is arranged on the outside of the flyer 2 on the side near the center line sending bobbin 4, and a rotating frame is provided between the peripheral line sending device 6 and the flyer 2. A pre-twisting device 8 is provided which consists of a twisting roller 81 and a twisting roller 82 carried thereon.

A twisting die T is therefore provided on the side of the peripheral wire delivery device 6 of the pretwisting device 8 of the lever. Further, a center line W is provided at an appropriate position on the outside of the fryer 2. A guide pulley for introducing the material into the twisting die 7 by bypassing the outside of the flyer 2.
11, 12, 13 and 14 are provided. Note that M is a motor that commonly drives the fryer 2 and the pre-twisting device 8. Next, the operation of this inventive device will be explained.

If the flyer 2 is now rotated at an appropriate number of revolutions in the direction of the arrow, the pre-twisting device 8 is driven once at about twice the number of revolutions in the same direction. The center line WO is sent out from the center line delivery bobbin 4 and guided from the guide pulley 41 to the guide pulley 21 of the flyer 2, during which the center line W is sent out. receives one S twist, then guide pulley-2
When moving from 2, 23 and 24 to the external guide pulley 11, it undergoes one more S twist, a total of two times. In this way, the center line W has been given two S twist turns. The wire passes through the guide bobbies 11, 12, 13, and 14 in sequence, passes through the twisting die 7, enters the pre-twisting device 8, is passed around the twisting rollers 82, and then returns to the guide of the flyer 2. Pulley 25 is headed. Center line W. The plurality of peripheral wires We sent out from the peripheral wire sending device 6 before entering the one-twisting die 7 from the guide pulley 14 is a center line W. join and twist together into die 7. Since the pre-twisting device 8 rotates in the same direction as the flyer 2 and at a rotation speed approximately twice that of the flyer 2, the two previously given S-twisting turns are caused by the guide pulley 14 and the twisting die 7. and the center line W of this state. The surrounding line We joins the line.
Now, the merged center line W.

The surrounding wire We is subjected to two Z twists by the pre-twisting device 8, approximately twice the number of revolutions of the flyer 2, and then this Z twist is twisted once between it and the guide pulley 25 of the flyer 2.
The number of doses is reduced, and then the number of doses is reduced once again after passing through the guide pulleys 26, 27, 28 and arriving at the take-up device 5 on the floating frame 3.
Z-twisting is applied as much as the number of rotations of the pick flyer 2, and in the end it becomes a product strand w that has been Z-twisted twice and is sent to the winding device 9.
It is wound up. Now center line W. If we consider this, after the twist is once resolved upstream of the pre-twisting device 8, the S twist is 1 at the point where it enters the guide pulley 25 of the flyer 2.
Since the Z-twist is applied once between the guide pulley 28 and the take-off device 5, the center line W in the product strand w ends up. It will be included in a state that has not undergone any processing. According to this invention, (11) center line W, which has a high retwisting efficiency because it is a two-degree twist type;

This center line W is sent out separately from the surrounding line We. By applying a relatively large braking force to the feeding of the wire to create tension, it is possible to prevent twisting from occurring such as protrusion of the center line in the twisted wire. 01i) {Since pre-twisting is provided, there is no risk of twisting breaking, etc., and other effects are achieved.

[Brief explanation of the drawing]

The figure is a side sectional view showing one embodiment of the present invention. 2... Flyer, 3... Floating frame, 4... Center line sending bobbin, 5... Taking device, 6... Peripheral line sending device,
8... Pre-twisting device.

Claims (1)

[Claims] 1 (a) Four guide pulleys 21, 25:24, which are rotatably supported by bearing bases 1A and 1B arranged oppositely, have a hollow space inside, and whose groove outer periphery is in contact with their own rotational axis. ,
Flyer 2 provided with a plurality of guide pulleys including 28
(b) a floating frame 3 rotatably supported by the flyer in the empty space; and (c) a center line delivery bobbin 4 provided on the floating frame, a product strand take-off device 5, and a winding. (d) a peripheral wire sending device 6 provided on the outside of the flyer near the center line sending bobbin, and (e) a pre-twisting device provided between the flyer and the peripheral wire sending device. 8; and (f) a twisting die 7 provided at the entrance of the peripheral wire sending device side of the pre-twisting device.