JPH0253139B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Field of Application> The present invention relates to a method and apparatus for processing stranded steel wire.

<Prior Art> For example, when applying oil to a prestressed steel strand, conventionally the grease is sprayed or applied from the outside of the strand.

However, since the stranded wire is tightly bound, applying it from the outside is not enough to completely penetrate the inside.

In particular, when using PC steel stranded wire as an anchor cable, the unfixed part must be completely insulated from the surrounding mortar, and if the conventional insufficient oiling process is used, the design There are times when you cannot expect the desired effect.

The need to treat the inside of the stranded wires is not only necessary when applying grease, but also when removing oil or applying other materials, and it is also necessary to treat the inside of the strands with incomplete treatment. The current situation is that

<Object of the present invention> The present invention was made to improve the above points, and it is possible to completely apply oil, remove oil, clean, polish, etc. to each strand of steel wire. The present invention aims to provide a stranded wire processing method and device.

<Configuration of the present invention> Next, one embodiment of the present invention will be described.

<A> Rotating die In FIGS. 1 and 2, 1 is a rotating die fixed on the substrate 14.

The rotary die 1 is constructed by housing a rotary cylinder 12 rotatably in an outer box 11.

The rotating tube 12 passes through through holes 13 corresponding to the number of strands W constituting the stranded wire S.

<B> Convergence cylinder The convergence cylinder 2 is simply a cylinder with a central hole with a diameter equal to or slightly larger than the outer diameter of the stranded wire S, and a clamp 21 is installed to prevent it from moving.
It is fixed to the board with etc.

This focusing tube 2 may have a structure in which a through hole is simply formed in a steel plate or block, or a stranded wire S
Even if it is a pipe that inserts a pipe, it can be used depending on its purpose.

<C> Nozzle The nozzle 3 is used to supply, for example, grease, water vapor, high pressure air, high pressure water, silicone, other chemicals, cleaning agents, powder, granules, etc.

The nozzle 3 is located between the rotary die 1 and the focusing cylinder 2, and arranged so as to be able to supply the above-mentioned fluid to the group of unraveled strands W.

<How to use the present invention> Next, a method for processing stranded wire using the above-mentioned apparatus will be described.

<B> Dismantling the tip of the stranded wire Only the tip of the stranded wire is processed manually.

That is, the tips of the stranded wires S, such as PC steel wires, are unraveled and separated into individual wires W.

<B> Insertion into the rotary die and convergence cylinder Each unraveled strand W is inserted one by one into the through hole 13 of the rotary cylinder 12 of the rotary die 1.

Then, after separating by a certain distance, all the wires W are converged again and inserted into the through hole of the converging tube 2.

<C> Opening of the strands The strands W opened through the through holes 13 of the rotary tube 12 remain sufficiently twisted.

Therefore, when the tips of each strand are converged again, the strands that have been opened and separated are repeatedly expanded and contracted several times in a large wave shape between the rotating die 1 and the convergence tube 2, and then positioned. I will do it.

In other words, due to the force of untwisting, the strands are once separated widely, and then come together again into one group of strands W to reconfigure the stranded wire S.

<D> Continuous Supply of Stranded Wire The stranded wire in the above state is continuously pushed out in the direction of the convergence tube 2 without rotating by a method such as passing it between rotationally driven feed rollers (not shown).

Then, when the stranded wire S passes through the rotating tube 12, the stranded wire S is unraveled while maintaining its twisting force.

Since the stranded wire S itself is supplied without rotating, the rotary cylinder 12 idles according to the twisting direction of each unraveled strand W.

<E> Fluid supply At the point where the wire group W is expanded the most, nozzle 3
supplies grease, other liquids, and gases from

Then, since each strand W is completely independent and has no other material in contact with its surroundings, the entire circumferential surface of the strand W can be coated with fluid such as grease.

When applying grease to the entire length of the wire W, the above steps may be continued, but there are cases where a range where grease should not be applied is specified, such as with a steel wire for an anchor.

At that time, if the supply of grease from the nozzle 3 is simply stopped, the grease will flow along the twist of the strands W and affect the non-applied portions.

In such a case, the nozzle 3 may be replaced (it is convenient to arrange a plurality of nozzles so that they can come in and out), and silicon or the like may be supplied and applied to a certain distance of the wire W.

<Effects of the Present Invention> Since the present invention is configured as described above, the following effects can be achieved.

<B> Conventionally, it was thought that with stranded wires such as PC steel wires, it was impossible to apply grease or the like to the spaces between the strands or to the contact surfaces between the strands.

Therefore, the process was done by simply applying grease or the like from the outer periphery.

On the other hand, in the present invention, by simply continuously feeding the steel stranded wire to the rotary die, a processing space can be continuously formed between the strands of the steel stranded wire without relying on human power.

This makes it possible to completely surround the strands with liquid or gas.

<B> The twisting force held by the strands restores the wire to its original stranded steel wire, which saves the effort of restoring its shape.

<C> By supplying chemicals other than grease, steam, or polishing powder or granules from the nozzle, you can remove old oil around the wires, clean them, or perform other chemical treatments or polishing. It can be carried out.

[Brief explanation of the drawing]

FIG. 1: An explanatory view of an embodiment of the processing method of the present invention. FIG. 2: A front view of an embodiment of the rotary die.

Claims (1)

[Scope of Claims] 1. Using a rotary die in which a plurality of through holes are formed in a rotary body that allows free rotation, each strand constituting a steel stranded wire whose shape has already been completed is inserted into the through holes. The stranded steel wire was passed through a rotating die continuously without rotating itself, and the stranded steel wire was unraveled while retaining the twisting force to increase the distance between each strand, increasing the distance. A method of processing stranded steel wire in which a liquid or gas is supplied to each strand, and the twisted force of each unraveled strand converges and restores the original stranded steel wire. 2. A rotary die in which a rotary body that allows free rotation is provided with a plurality of holes that independently pass through each strand of wire after dismantling a steel stranded wire whose shape has already been completed; A convergence tube that houses the steel stranded wires that have each group of strands restored to its original shape by the twisting force of each strand, and a supply nozzle for liquid, gas, etc. located between the rotating tube and the convergence tube. A steel stranded wire processing device consisting of: