JPS5842480Y2 - sensor sei okridashi sochi - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a wire feeding device in a cable twisting machine.

A communication cable is usually constructed by twisting together a large number of quads or a unit made up of quads.

Specific examples are shown in the table below.

1. Unit component element wire conductor diameter: 0.32 mm Quad Insulation outer diameter: 0.51 mm Twisting pinch: 60 mm The above 100 pairs of quads were twisted at a twisting pitch of 250 mm.

2. Structure of the Cable The above three units are twisted together at a twisting pitch of 800 mm. The state in which the above units are twisted to form a cable is shown in FIG.

In this figure, U indicates a unit, D indicates a twisting die, and C indicates a cable.

As you can see from this diagram, the unit) U has a presser winding T.
is applied.

The unit is pulled from the supply reel and suffixed.

The direction is changed via a fixed wheel for changing the direction above the reel, and the reel is sent to the twisting die.

If the twisting direction of the unit and the cable are the same, twist will be added to the unit during the collective twisting described above, and if the twisting direction is opposite, the twist of the unit will be reduced. The reel is rotated about an axis perpendicular to the reel, and the unit is untwisted to prevent this phenomenon from occurring.

However, the contact state between the direction changing fixed wheel and the unit is not always constant, but varies depending on the state of the unit being pulled out from the supply reel.

Therefore, it is difficult to apply uniform untwisting to the entire unit, resulting in some areas where untwisting is not applied.

In such a place, the presser winding T becomes loose, causing the unit to fly.

In addition, there may be areas where untwisting is concentrated, and there is a risk that the unit may buckle in such areas.

Furthermore, when a unit is drawn out from the supply reel, the outlet on the reel reciprocates in the reel axis direction as the unit is pulled out, so the length of the unit between the fixed wheel for direction change and the outlet constantly changes during the draw.

This also makes it difficult to apply uniform untwisting to the unit.

The above description has been about units, but the same applies to quads.

A cable made with uneven untwisting as described above will have irregularly twisted portions distributed in the longitudinal direction, resulting in poor electrical properties.

This invention was developed based on the circumstances of the present invention, and the object is to obtain a wire feeding device that can uniformly untwist the wires when twisting the wires to form a cable.

The present invention has been made to eliminate the above-mentioned drawbacks.

The details of the present invention will be explained below with reference to the drawings.

In the drawing, a turntable 2 rotatably supporting a supply reel 1 is rotated in the twisting direction of the twisting machine about an axis perpendicular to the reel axis.

A non-sliding pressure roller 4 is supported by a support 3 erected on one side of the turntable 2.

This non-sliding crimping roller has multiple pairs of unit rollers made of rubber or the like and strongly crimped between pairs facing each other in the lateral direction. The transfer of the rollers allows the wire to pass only in the axial direction.

On the exit side of the non-sliding crimping roller 4, a rotary roller 5, which includes a pair of rollers that clamps the wire rods and can rotate around an axis perpendicular to the axis of each roller, is installed to move a plurality of wire rods toward a twisting machine. located along the direction path.

The rotating roller 5 is constructed as shown in FIG.

That is, an outer ring 6 fixed to a roller support structure (not shown), an inner ring 8 rotatably supported within this outer ring via a roller row 7, and a pair of bearings provided transversely within this inner ring 8. It has a pair of claw-shaped rollers 10 that are axially mounted between plates 9, and since the inner ring 8 can freely rotate relative to the outer ring 6, the pair of rollers 10 also have an axis perpendicular to the axis. can rotate freely around the center.

In the device of the present invention having the above configuration, untwisting is applied between the twister mouthpiece and the non-sliding pressure roller.

Since the direction of the wire is changed by a plurality of rotating rollers that include a pair of grooved rollers that hold the wire and can rotate around an axis perpendicular to the roller rolling axis, the wire twisting due to the change of direction is performed. There is little resistance to returning it.

Therefore, there is no possibility that the wire will fly or buckle.

Furthermore, variations in the position of the pull-out point on the reel do not affect untwisting.

The present invention is not limited to the above embodiments.

For example, instead of the turntable, a reel frame that supports the supply reel and rotates about an axis perpendicular to the supply reel axis may be used.

Further, instead of the rotating roller, a rotating die may be used.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an embodiment of the present invention, FIG. 2 is a plan view of its rotating roller, and FIG. 3 is a diagram for explaining the necessity of untwisting. 1... Supply reel, 2... Turntable, 4... Non-sliding pressure roller, 5...
...Rotating roller.

Claims (1)

[Scope of utility model registration request] A support means that rotatably supports the supply reel and is rotated about an axis perpendicular to the supply reel axis, and a plurality of pairs of units made of an elastic material such as rubber and in which pairs facing each other in the lateral direction are strongly crimped. a non-sliding crimping roller that non-slidingly clamps the wire drawn out from the supply reel, including a roller, allows the wire to pass only in the axial direction, and is rotated around the wire traveling direction in synchronization with the supporting means; A wire rod feeding device having a wire rod changing path including a plurality of members that are provided on the exit side of a non-sliding pressure roller and that support the wire rod and can freely rotate around the wire traveling direction.