JPH0156856B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for supplying lubricant and rust preventive agent to strands in a wire twisting process.

[Conventional technology and its problems]

In the production of stranded wire, for example, using a gauge type stranding machine, as shown in FIG. While rotating the cage 20,
The strands a are fed out from each bobbin 22, and each strand a is converged into the die 2 through the batten 3, and the central hollow shaft S
Twist it onto the center conductor 1 from.

In this stranded wire manufacturing process, in order to prevent the stranded wire from rusting after production, a rust preventive agent is supplied to the stranded wire, and when the stranded wire is compression molded in a later process, a lubricant is applied to the stranded wire. supply. This conventional feeding method is generally carried out by dropping the wires immediately before or after the wires a are converged and passed through the twisting die 2.

However, what is supplied just before the die is
Since it is dripped directly onto each thin wire a, excess lubricant and rust preventive agent is likely to be supplied, which is not only uneconomical but also causes stickiness to the stranded wires. Also,
It is impossible to avoid uneven supply, and unevenness in the degree of application becomes noticeable, resulting in problems such as spots appearing on the product at a later date.

The latter, which is supplied after twisting, is supplied to the outer surface of the stranded wire, but is difficult to be supplied to the inner strand a. If it is difficult to feed the inside of the stranded wire, there is a risk of rusting later.

[Object of the Invention] In view of the above points, an object of the present invention is to provide a device that can evenly apply and supply an appropriate amount of lubricant and rust preventive agent to each strand of a stranded wire. .

[Means for achieving the purpose of the invention]

In order to achieve the above object, the present invention includes:
A liquid-absorbing material is provided on the central hollow shaft at the stage before the wires unwound from the bobbin mounted on the wire-twisting machine converge and reach the twisting die, and each wire is individually slid into contact with this liquid-absorbing material. At the same time, a lubricant and rust preventive agent was supplied to the inside of each strand through-hole of the liquid-absorbent material.

[Effect]

The lubricant/corrosion inhibitor supply device configured in this way is
The centrifugal force caused by the rotation of the hollow shaft impregnates the inside of the wire through-hole of the liquid-absorbent material with the lubricant and anti-corrosion agent toward the outside, and each wire comes into sliding contact with the lubricant and anti-corrosion agent. The lubricant and anti-corrosion agent is applied intensively, reliably and uniformly.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the wire twisting machine shown in FIG. 8, as shown in FIGS. 1 to 3, an annular liquid-absorbing material 4 made of felt is provided on the rear surface of the batten 3 at the tip of the central hollow shaft S. Each element wire a is made to slide through the liquid material 4. As shown in FIG. 2, an annular supply pipe 10 is fitted between the liquid absorbent material 4 and the central hollow shaft S.
A guide hole 11 extends from this tube 10 toward the through hole of the strand a.
, so that the lubricant and rust preventive agent described below reaches the strand a in a concentrated manner. The guide hole 11 may simply open the tube 10 without reaching the strand through-hole. In addition, an oil pan ring 1 is provided on the outer periphery of the liquid absorbent material 4.
2 to prevent scattering of the lubricant and rust preventive agent described later,
This ring 12 is provided with an oil amount detector 13.

An annular tank 8 is integrally attached to the central hollow shaft S, and the outer side of the tank 8 is connected to the supply pipe 10 via a tube 9. When the hollow shaft S rotates with the lubricant/rust preventive agent in the tank 8, the lubricant/rust preventive agent is drawn to the outside of the tank by the centrifugal force, passes through the tube 9, and is transferred to the supply pipe 10 and the guide hole. 11 to reach the through hole of the strand a.

Therefore, the bobbin 2 mounted on the cage 20
The strands a fed out from the twisting die 2 are converged as they advance toward the twisting die 2, but during that path, they slide through the liquid-absorbing material 4, and the lubrication and anti-corrosion agent concentrates there. It is applied reliably and evenly, and then
The wires are twisted by the twisting die 2, taken up by the capstan 24, and wound up by the winder 25.

Further, an electromagnetic on-off valve 14 is interposed in the tube 9, and the oil amount detector 13 is connected to this on-off valve 14. The oil amount detector 13 detects the amount of lubricant/rust preventive agent impregnated into the absorbent material 4, especially the amount accumulated on the outer edge due to centrifugal force, and based on this detected value,
The on-off valve 14 is opened and closed as appropriate to impregnate and supply the liquid-absorbing material 4 (strand a) with just the right amount of lubricant and anti-corrosion agent.

In this case, no lubricant or rust preventive agent is supplied to the center conductor 1, but if necessary, a liquid-absorbing material 5 such as felt is provided on the downstream side of the batten 3, as shown in FIG. may be installed on the side by means of the presser plate 6 via the bolts 7.

Alternatively, the liquid-absorbing material structure shown in FIGS. 1 to 3 may be formed on the downstream side without providing the liquid-absorbing material 4 on the upstream side. In this case, as shown in FIGS. 5 and 6,
Further, in the center of the supply pipe 10, there is a felt 5' (integrated with the felt 4) that the center conductor 1 slides through.
A pipe 10' holding a pipe is provided, and this pipe 10' is connected to the supply pipe 10 using a pipe. Tube 9 may be connected to either supply pipe 10 or pipe 10'.

In this way, since the lubricant and rust preventive agent are supplied by the rotational force of the hollow shaft S, the twisting machine is effective for those in which the hollow shaft S rotates at a high speed, for example, a rigid type.

Alternatively, as shown in FIG. 7, the liquid can be supplied by dropping or the like to the inside of the wire through-hole of the liquid-absorbing material 4 via the tube 16 using an external pump 15 provided in the cage 20 (hollow shaft S). .

〔effect〕

As explained above, according to the present invention, it is possible to uniformly apply and supply lubricant and anti-corrosion agent to each strand without excess or deficiency.
It can save on lubricants and anti-rust agents and improve the quality of stranded wires.

Furthermore, in order to supply and impregnate the lubricant and rust preventive agent from the inside of the wire through-hole in the liquid-absorbing material, the wire is located in the flow path of the lubricant and rust preventive agent due to centrifugal force. The rust agent is supplied in a concentrated manner without waste, and the lubricant and rust preventive agent is applied and supplied to the strands in just the right amount.

[Brief explanation of drawings]

Fig. 1 is an enlarged schematic diagram of the main parts of an embodiment of the lubricant/corrosion inhibitor supply device of the present invention, and Fig. 2 is a -
3 is a cross-sectional view taken along the - line in FIG. 2, FIGS. 4, 5, and 7 are enlarged schematic diagrams of main parts of other embodiments, and FIG. 6 is a - line sectional view in FIG. 5. The line sectional view, FIG. 8, is a schematic diagram of the wire twisting machine. 2... Dice, 3... Grain board, 4, 5, 5'...
Liquid-absorbing material, 8... Tank, 9, 16... Tube, 10... Annular supply pipe, 13... Oil amount detector, 14... Solenoid shut-off valve, 15... External tank,
20...Cage, 22...Bobbin, a...Element wire,
S...Central hollow shaft.

Claims (1)

[Scope of Claims] 1. A liquid-absorbing material is provided on the central hollow shaft at the stage before the wires unwound from a bobbin mounted on a wire twisting machine are converged and delivered to the twisting die, and each of the liquid-absorbing materials is In addition to sliding each strand into contact with each other and passing it through,
A lubricant/rust preventive agent supply device characterized by supplying a lubricant/rust preventive agent to the inside of each strand through-hole of a liquid-absorbing material. 2. The lubricant/rust preventive agent supply device according to claim 1, characterized in that the lubricant/rust preventive agent is supplied to the liquid-absorbing material by an external pump. 3. In claim 1, a lubricant/rust inhibitor tank is provided on the central hollow shaft, and the liquid absorbent material is supplied with the lubricant/rust agent via a tube from the outside of the tank.
A lubricant/rust preventive agent supply device characterized by supplying a rust preventive agent. 4. The lubricant/rust preventive agent supply device according to any one of claims 1 to 3, wherein the liquid-absorbing material is felt.