JPS62171768A - Method and device for surface-treating wire rod - Google Patents

Abstract

PURPOSE:To coat a processing soln. uniformly on the surface of wire rod by providing a rotating brush with the unidirectionally traveling wire rod as the center of rotation, and mixing the processing soln. sprayed into an air current which is blown against the brush. CONSTITUTION:The wire rod W of a specified shape is pierced through a housing 10, compressed air is forced in from an air inlet hole 15, spiral brush bristles 18 with the wire rod W as the center of rotation is moved in the traveling direction of the wire rod W. In this case, the bristles 18 are forced back by the flow of the compressed air supplied from the inlet hole 15 and rotated to reduce the air resistance,and the surface of the wire rod is brushed. The processing soln. in a liq. vessel 13 is atomized, sprayed on the spiral rotating brush 18, and coated on the surface of the wire rod. The processing soln. is uniformly coated in this way.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to the uniform application of an anti-caking agent, mold release agent, oil, etc. to the surface of a pressure layer of an electric wire, steel rope, or cable. The present invention relates to a wire surface treatment method and apparatus useful for this purpose.

[Summary of the invention]

The wire surface treatment method and apparatus of the present invention include a brush that is rotated by a compressed air flow, etc., with the wire moving in the - direction as the center of rotation, and the air flow that is blown onto the brush is atomized. The treated processing liquid is mixed and supplied.

Therefore, the wire can be brushed without using a special rotational drive mechanism, and a desired treatment liquid can be uniformly applied to the surface of the wire.

[Conventional technology]

Long electric wires, steel cables (ropes), etc. are generally manufactured in a factory where a wire feeder, a forming machine, a gathering machine, etc. are arranged in tandem, and are wound directly onto a cable drum.

During such manufacturing processes, for example, electric wires require a step of applying a mold release agent to the surface of the wire in order to form an insulating layer on the surface of the conductor, and lobes require a step of applying a mold release agent to the surface of the wire to prevent caking. Alternatively, it may be necessary to apply oil or the like to the surface.

FIG. 3 shows an example of a conventional process of applying a treatment liquid to the surface of a wire, where A is a bath filled with a treatment agent, and W is a wire moving in one direction inside the bath.

In addition, in FIG. 4, instead of the bathtub, a felt or cloth C impregnated with a treatment liquid is fixed, and a wire W to be subjected to surface treatment is passed through it to be coated with the treatment liquid.

[Problem that the invention seeks to solve]

The method shown in Figure 3 has the disadvantage that the thickness of the coating layer on the wire surface is not uniform in the longitudinal direction and circumferential direction of the wire, and the inside of the bathtub is contaminated by dust and foreign matter adhering to the wire surface. There is a problem.

In addition, although the method shown in FIG. 4 makes the coating layer uniform to the extent that it forms,
As with bathtubs, there is a problem in that the felt and cloth to which the treatment liquid is applied are heavily contaminated, making replacement and maintenance time-consuming.

This invention was made to solve this problem, and the surface treatment of the wire is performed using a brush that rotates using compressed gas or the like as a motive force.

[Means for solving problems]

In the wire surface treatment method of the present invention, a spiral brush is fitted into the wire to be treated, and a mixed gas flow in which a treatment liquid is atomized is sprayed onto the spiral brush. It is something.

[Effect]

When the high-speed mixed gas collides with the spiral brush, the brush rotates around the wire to be treated, and while brushing the surface of the wire to be treated, the treatment liquid or agent attached to the brush is applied to the surface of the wire to be treated. Applied evenly.

〔Example〕

FIG. 1 is a side cross-sectional view showing one embodiment of the wire surface treatment apparatus of the present invention, in which 10 is a cylindrical housing, 11.12 is a side wall block of the housing 10, and IIA and 12A are blocks that penetrate through the inside of the housing 10. The opening of the wire rod W to be processed is shown running in the direction of the arrow.

A side wall block 12 forming an air wiper is provided in the direction of movement of the wire to be processed W, and a pipe 14 into which the processing liquid flowing out from the liquid tank 13 is introduced is installed in this side wall block. and an air inflow hole 15 into which compressed air is press-fitted. 16 indicates the tip nozzle portion of the pipe 14.

Brush bristles 18 planted on a spiral rotating rod 17 are placed in contact with the wire W to be processed. Reference numeral 19 indicates a stopper for the rotating rod 17, reference numeral 20 indicates a recovery hole for the air supplied into the housing 10 and excess processing liquid, and reference numeral 21 indicates a recovery tank, and the recovery tank 21 contains a liquid capable of recovering only the processing liquid. Preferably, a filter is provided.

22 is an air escape port.

Since the wire surface treatment device of the present invention has the above-described structure, in a wire manufacturing factory or the like, the wire W having a predetermined shape is passed through the housing 10, and while being pulled out in the direction of the arrow, the wire W is inserted into the air inlet hole. When compressed air is injected from 15, spiral bristles 1 with the wire W as the center of rotation are formed.
8 moves in the direction of movement of the wire W, but is pushed back by the compressed air flow supplied from the air inflow hole 15, and rotates so as to reduce air resistance at this time, brushing the surface of the wire.

In this case, since the tip nozzle part 16 of the pipe 14 connected to the liquid tank 13 faces the outlet of the air inflow hole 15, the processing liquid in the liquid tank 13 is atomized at the nozzle part, similar to a sprayer. and is sprayed onto the spiral rotating brush 18.

Therefore, the atomized treatment liquid uniformly adheres to the brush bristles 18 and is applied to the surface of the wire W.

Further, the surplus processing liquid is drawn out together with air from the collection hole 20 into the recovery tank 21, and the air is discharged from the escape port 22, but the surplus processing liquid (or dust) is accumulated in the recovery tank 21. - Therefore, the surplus processing liquid accumulated in the recovery tank 21 can be filtered and reused.

FIG. 2 shows another embodiment of the side wall block 12, in which the same reference numerals as in FIG. 1 indicate the same parts.

In this embodiment, the air inflow hole 15 is connected to the side wall block 12.
The exhaust port 15A formed along the inner circumferential surface of the air outlet 15A is electrically connected, and the supplied air travels in the direction of the arrow. At this time, the vicinity of the outlet opening 12A of the wire W becomes negative pressure, so if the nozzle part of the pipe 14 is placed in this part, the liquid tank 13
The treatment liquid flowing out is atomized and drawn in, and can be applied to the surface of the wire as described above.

The wire surface treatment device of the present invention can apply a treatment liquid while removing dust, foreign matter, etc. from the wire surface using a spiral rotating brush rotated by compressed air, as seen in the above-mentioned embodiment. Therefore, surface treatment can always be uniformly performed using a clean treatment liquid.

Furthermore, it becomes easy to replace the treatment liquid according to the purpose of treating the surface of the wire, and the structure can be simplified because no special power source is required.

Note that the liquid tank 13 may be attached to the lower side of the side wall block 12 constituting the air wiper.

In the above embodiment, compressed air is introduced into the housing 10 to generate a high-speed gas flow, but depending on the processing liquid, for example, high-pressure steam may be introduced from the air hole 15.

〔Effect of the invention〕

As explained above, the wire surface treatment method and device of the present invention supply a high-speed air flow to a spiral brush with the wire as the center of rotation to rotate it, and the wire treatment liquid is applied to the air flow. Since the treatment agent is atomized and mixed with the wire, it has the effect of uniformizing the treatment agent that adheres to the surface of the wire.

In addition, surface treatment is performed while removing foreign matter on the wire surface by brushing, excess treatment liquid can be easily recovered, clean treatment liquid can always be supplied, and treatment liquid or treatment can be changed depending on the processing purpose. It has many advantages over conventional methods, such as easy replacement of agents.

[Brief explanation of drawings]

Fig. 1 is a side sectional view showing one embodiment of the wire surface treatment device of the present invention, Fig. 2 is a sectional view showing another embodiment of the side wall block constituting the air wiper, and Figs. FIG. 3 is an explanatory diagram of a method for treating the surface of a wire. In the figure, 10 is a housing, 12 is a side wall block constituting an air wiper, 13 is a liquid tank, 14 is a pipe, 15 is an air inflow hole, 16 is a tip nozzle part, and 17 and 18 are brush bristles that form a spiral brush. and rotating rod, 2
0 indicates a recovery hole, and W indicates a wire to be processed. Scroll surface study KL Figure 1 10 Housing 16 Nozzle 1
3- Soki 20・-(ii) Hole 15
Soramarumaru 21 tank 22
Outlet port Figure 2 Figure 3 Figure 4

Claims (2)

[Claims] (1) A gas mixed with a treatment liquid in a mist is made to collide with a spiral brush arranged so that the rotation center is the wire to be treated that is moving in one direction, and while the brush is being rotated, A method for surface treatment of a wire rod, characterized in that the wire rod to be treated is subjected to surface treatment. (2) a housing provided with two openings through which the wire to be processed passing in one direction; and a spiral brush arranged within the housing so as to rotate around the wire to be processed; An apparatus for surface treatment of a wire rod, comprising: an air inflow hole formed near an opening on the exit side of the wire rod to be treated; and an air wiper equipped with a nozzle through which a treatment liquid flows out.