JPS6124109A - Wire twisting and corrosion preventing compound filling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for filling stranded wire, particularly fine aluminum stranded wire, with an anti-corrosion compound.

Conventionally, steel-core aluminum stranded wires (hereinafter simply referred to as AC3R), which are commonly used for high-voltage power transmission lines, etc., have been given corrosion protection to prevent corrosion caused by rainwater, etc. of the steel core used to reinforce the aluminum wires. An anticorrosion compound (hereinafter simply referred to as compound) such as grease is filled in the gaps between the strands.

AC3R filled with this compound is also usually classified as light corrosion protection AC3R1 medium corrosion protection AC3R2 and heavy corrosion protection AC3,R.

The light anti-corrosion AC3R is the one in which Compound C is filled only in the part of the steel wire reinforcing the aluminum wire (not shown), as shown in the cross-sectional view in Figure 6, and the heavy-duty anti-corrosion AC3R is shown in the cross-sectional view in Figure 7. As shown in , compound C was applied to the inner layer of aluminum wire a1 and steel wire except for the outermost layer of the aluminum wire (not shown).
In addition, heavy anti-corrosion AC3R (not shown) is a type in which the entire stranded wire including the outermost layer of aluminum wire is filled with a compound. Therefore, light corrosion protection and heavy corrosion protection AC
In 3R, if the compound protrudes from the outer periphery of the AC5R, it becomes sticky and interferes with the construction work, so the filling range of the compound is specified to be within a range that does not protrude to the outer periphery of AC5R.

[Conventional technology]

Conventionally, as an apparatus for twisting electric wires and filling the spaces between the twisted wires with a compound, an apparatus as shown in a vertical cross-sectional view in FIG. 5 has been used.

In other words, the conventional device A' has a wrapper port 2 which communicates with the compound supply passage 3' on the wire supply side of the twisted rod dies 1'.
The strands So introduced into the wrapper opening 2' are the center strands or the strands S+ twisted in the previous process.
In the process of being sent to the rodice 1', the compound C supplied from the compound supply device 4' via the supply passage 3' fills the gaps between the stranded wires and becomes compound filled @ stranded wire S. taken out.

Such electric wire burning and compound filling equipment A' is installed at each step of twisting steel wires or aluminum wires in the production of light corrosion protection AC3R and medium corrosion protection AC3R.

For example, in the production of semi-corrosion-proof AC3R, when compound is filled between the aluminum hot wires in the inner layer using conventional equipment A', the cross section of the compound-filled stranded wire is The state is shown in FIG. 7, and the compound is filled only into the gap within the circumference corresponding to the outer diameter of the stranded wire. Therefore, if a similar device A' is used in the step of forming the outermost layer of aluminum strands, it is possible to fill the compound between the outermost layer of aluminum strands, but in this case, the compound can be filled between the outermost layer of aluminum strands. AC that adheres to the surrounding aluminum strands and interferes with construction work.
3R, which violates the above-mentioned regulations.

Therefore, medium-corrosion-proof AC3R, in which the outermost layer is coated with Al-Ti wire without being filled with compound, has been commonly used, but the cross section of this medium-corrosion-proof AC3R is as shown in Fig. Electric wire a2 and inner layer aluminum #I5 wire a! Many gaps d are created between them. Therefore, if this AC3R is installed outdoors, rainwater will accumulate in the gap d, and this rainwater will remain for a long time even after the rain has stopped, severely corroding the inner layer aluminum wire and steel wire rather than the outer layer aluminum wire. leading to.

[Problem that the invention seeks to solve]

The present invention is based on the conventional light corrosion protection AC3R and medium corrosion protection AC3R.
This was done by focusing on the problems of these AC3Rs.
When manufacturing the steel wire and inner layer aluminum, the compound is filled in the gaps between the hot wires, and at the same time, the compound is evenly filled in the gaps between the inner layer aluminum strands and the outer layer aluminum strands.
Moreover, it is an object of the present invention to provide an electric wire twisting and compound filling device that fills between the twisted wires without intervening between the aluminum twisted wires in the outermost layer.

[Means for solving problems]

The present invention will be explained below based on the attached drawings showing examples.

FIG. 1 shows a longitudinal sectional view of the apparatus of the present invention, and FIG. 2 shows a right side view of FIG. 1.

In the figure, the electric wire burning and compound filling apparatus A of the present invention has a wrapper port 2 communicating with a compound supply passage 3 on the electric wire introduction side of the twisted rod die 1, and a compound filling device A on the twisted wire outlet side of the twisted rod die 1. Compound deposition chamber 4 and compound deposition die 6 communicating with supply passage 5
are connected to each other, and an escape passage 7 communicating with the trumpet opening 2 is connected to the compound adhesion chamber 4.

In the figure, 8 is a compound supply device, and 9 is a connecting pipe leading from the supply device W8 to the compound supply passages 3 and 5.Although they may be separately attached to the supply passages 3 and 5, a branch pipe as shown in the figure may be used. It may be. 10 is a communication passage between the twisted lodice 1 and the compound deposition chamber 4; 11.1
2 is a blind pipe leading from the escape passage 7 to the outside of the device A.

In the above configuration, the diameter of the twisting rod die 1 is formed to the same size according to the outer diameter of the stranded wire, but the diameter of the compound adhesion die (hereinafter simply referred to as adhesion die) 6 is the outer diameter of the stranded wire to be formed. The diameter is adjusted to correspond to the outer diameter of the stranded wire, including the compound layer formed around the stranded wire.

Furthermore, the twisting die 1 and the adhesion die 6 are arranged concentrically, and the spacing between them is preferably about 10 or so, for example, as close as possible to make the compound layer formed around the stranded wire uniform. There is no problem even if the distance between the cranes is short.

The compound deposition chamber (hereinafter simply referred to as the deposition chamber) 4 is a chamber in which the compound C is deposited around the hot wire, and the deposition chamber 4 is always filled with the compound C. Compound consumption in the deposition chamber 4 is smaller than the amount consumed at the wrapper port 2, so the compound supply passage 5 to the deposition chamber 4 is narrower than the supply passage 3 to the wrapper mouth 2. This is to prevent variations in the thickness of the compound attached to the outer periphery of the stranded wires when the compound pressure increases.
Formed narrower than the compound supply passage 5, the lower part of the deposition chamber 4 on the opposite side to the compound supply passage 5 and the wrapper opening 2
It is connected to the entrance of the

Furthermore, in order to facilitate maintenance management during the production of twisted wires, the apparatus A of the present invention can be manufactured so that it can be divided into upper and lower halves along the plane A-A' shown in FIG. The attachment die 6 can also be formed in a manner that it can be divided into two parts.

[For production]

Next, the operation of the device WA of the present invention will be explained.

First, the compound C supplied from the supply device 8 is introduced into the wrapper mouth 2 and the deposition chamber 4 via the branch connecting pipe 9 and the supply passages 3 and 5, respectively.

Into the wrapper opening 2 are introduced the central strand or the stranded wire S+ which was twisted at the twisting port in the previous step and filled with the compound, and the stranded wire So which is twisted by the device of the present invention, and are gathered in the twisting rod 1 and twisted. It is formed into a twisted wire S.

In this case, since the inside of the wrapper opening 2 is filled with the compound C, the compound C fills the voids created in the twisted wires during twisting. The state in which the compound is filled into the stranded wire immediately after passing through the stranded rod die 1 is as shown in FIG. 7, and the voids within the outer circumference of the stranded wire S are filled with the compound C.

Next, this stranded wire S enters the deposition chamber 4, a compound is adhered to the outer periphery of the stranded wire S, and the excess compound is further squeezed out by the deposition die 6 to form a stranded wire S01 with a compound layer c1 of an appropriate thickness. taken out. In this case, the pressure of the compound in the deposition chamber 4 does not become high due to the action of the escape passage 7, and the compound C is prevented from leaking out from the deposition die 6 or from ununiformly depositing on the stranded wire. be done.

A cross-sectional view of the stranded wire Scl passed through the attachment die 6 is shown in FIG.

Compound C has a butter-like appearance and adheres well to the steel wires (or galvanized steel wires) and aluminum wires that make up AC3R, so unless external force is applied, the compound layer c1 will not change its shape and will be ready for the next twist. The process can proceed.

Figure 4 shows the compound layer-attached stranded wire Sc1 in the state shown in Figure 3.
This is a cross-sectional view of the case where the outermost layer of aluminum m1Jta2 is formed using a combustion die without filling the outer periphery of the compound with compound.
In the process of forming line a2.

The state changes to a state c2 in which only the gap between the inner layer aluminum strands a1 and the outermost layer aluminum strands a2 is uniformly filled, and the compound C does not overflow and protrude outside the outermost layer aluminum strands a2. . In other words, the compound is sufficiently filled in the gap between the inner layer of aluminum strands a1 and the outermost layer of aluminum strands a2, but the amount of compound that does not protrude to the outside of the outermost layer of aluminum strands a2 is insufficient. The thickness of the compound layer c1 is set by adjusting the diameter of the compound layer c1.

〔Example〕

Next, as an example of the apparatus of the present invention, a case will be described in which heavily anti-corrosion AC3R is manufactured. In this case, the wire configuration of heavy corrosion protection AC3R is 7 steel wires/2.6mm diameter, 30 aluminum wires.
This is a 2.6 mφ twist.

First, the apparatus shown in FIG. 9 was used as the overall manufacturing apparatus.

In Figure 9, 13 is a supply stand, 14 is #R
Flyer with wire wound bobbins for 6 cents, 15
16 is a fryer with 18 bobbins wrapped with aluminum wire, 17 is a fryer with 18 bobbins wrapped with aluminum wire, and 17 is a 5th fryer that twists 6 layers of steel wire and fills it with compound at the same time. The conventional twisting and compound filling device 18 shown in the figure is the twisting and compound filling device of the present invention, which simultaneously burns 12 layers of aluminum wire and forms a layer of compound up to the outer periphery of the twisted wires. 19 is made by twisting 18 layers of aluminum wire.It is a burner and is not equipped with compound filling equipment. 20 is a take-up capstan, and 21 is a take-up stan].

In the above device, the steel cables are supplied from the subraisukund 13. Next, a flyer 14 is placed around the center wire.
The six steel wires supplied from the wire are twisted in a conventional twisting and compound filling device 17 to form a compound filled wl strand as shown in FIG. Next, 12 aluminum wires supplied from the fryer 15 were twisted around this steel stranded wire in the twisting and compound filling device 18 of the present invention, and a compound as shown in FIG. 3 was formed on the outer periphery. A twisted wire Sc+ is formed. Next, this twisted wire Sc
The 18 aluminum wires supplied from the flyer 16 around the strand are twisted at the opening 19 without being filled with compound, resulting in compound filled @ twisted wire 3 as shown in Fig. 4.
c2 is formed. In this case, the amount of the compound layer Cl formed on the outer periphery of the twisted wire by the apparatus of the present invention varies depending on the AC3R wire configuration, the twisting speed, the consistency of the compound, etc., and is adjusted by the diameter of the adhesion die 6. When the twisting speed is 20 cm/min and the consistency of the compound is 210, the diameter of the adhesion die 6 is 13.
3 mφ was optimal and made one voice.

Next, the AC3R twisted at the twisting port 19 passes through a winding capstan 20 and is wound up at a winding stand 21.

AC3R, which is formed by twisting 18 aluminum wires on the outer periphery of 1 hot wire SC with compound layer c1 formed by the above manufacturing method, has a compound between the inner layer Al<m wire and the outermost layer twisted aluminum wire. Although it was filled without any gaps, it did not protrude to the outer periphery of the outermost layer of aluminum Ti wire, and did not interfere with the winding work in the next process or the construction work of the product.

〔Effect of the invention〕

As explained in detail above, when manufacturing light corrosion protection AC3R or medium corrosion protection AC3R using the apparatus of the present invention, the inner twisted wire layer and the outermost layer twist that would occur when manufacturing using the conventional equipment The compound fills the gaps between the wire layers, completely preventing rainwater from accumulating and providing excellent corrosion protection.

Furthermore, if the device of the present invention is used, the conbound will not protrude beyond the specified range of light and medium anti-corrosion AC3R, so the wire construction work can be reliably and easily done without causing any hindrance.

Furthermore, since the device of the present invention is only partially modified in the twisting port of the conventional device, it has the advantage that it can be used without changing or increasing the layout or work process of the hot wire machine. When used in combination with conventional combustion and compound filling equipment, light and medium corrosion resistance A can be efficiently achieved.
C3R can be produced.

[Brief explanation of drawings]

FIG. 1 is a schematic vertical sectional view of the device of the present invention, FIG. 2 is a right side view of FIG. 1, FIG. 3 is a sectional view of an example of a stranded wire formed by the device of the present invention, and FIG. 5 is a schematic vertical sectional view of a conventional twisting and anti-corrosion compound filling device, and FIG. 6 is a cross-sectional view of an example of medium anti-corrosion AC3R manufactured using the device; FIG. 6 is a cross-sectional view of a conventional twisting and anti-corrosion compound filling device; FIG. A cross-sectional view of the wire, Figure 7 is a stranded wire filled with anti-corrosion compound @ steel stranded wire with aluminum stranded wire around it, and a cross-sectional view of the stranded wire immediately after the exit of the twisted rodice of the present invention equipment, Figure 8. 9 is a cross-sectional view of an example of medium corrosion protection AC3R manufactured using a conventional apparatus, and FIG. 9 is a schematic front view of a medium corrosion protection AC, SR manufacturing apparatus incorporating the present invention apparatus.

Claims (1)

[Claims] A wrapper port communicating with the anti-corrosion compound supply passage is provided on the electric wire introduction side of the twisting die, and an anti-corrosion compound adhesion chamber and an anti-corrosion compound adhesion die communicating with the anti-corrosion compound supply passage are provided on the twisted wire exit side of the twisting die. A device for twisting electric wires and filling an electric wire with an anti-corrosion compound, characterized in that the anti-corrosion compound application chamber is provided with an escape passage communicating with the wrapper opening.