KR20100089978A - Binder for manufacturing cable with dies - Google Patents

Abstract

PURPOSE: A binder for manufacturing a cable is provided to maintain a good twisted wire cable as a power cable by including a die in the inner path of a binder. CONSTITUTION: A through hole is formed in a path(20a) which is formed inside a binder(20). A flange part is formed outside the path. A die is inserted into the inner path of the binder. The die is formed by being partitioned into two after the flange part is formed. The die is partitioned in order to have a uniform length.

Description

Binder for Manufacturing Cable with Dies}

The present invention relates to a binder for producing a cable with a die, and more particularly, to bind the cable passed through the SJT stranded wire, so that the neutral wire wound on the cable can be kept unwound while passing through the binder. will be.

In general, the power cable 1 of the cable, as shown in FIG. (6) and sheath (7). In the structure of the power cable, since the shielding layers 3 and 5 existing inside and outside the insulating layer 4 have different uses as semiconducting layers, the required physical properties are slightly different.

Here, the neutral wire 6 is divided into S-yeon (S-yeon), jet-yeon (Z-yeon), S-jet-yeon (SZ-yeon), depending on how the twisted line, of which S-yeon (S-yeon), jet-yeon ( Z lead) twists the neutral wire in a certain direction, while S-jet lead (SZ lead) is a twisted pair method in which the twisted direction is changed at a constant period (about 380 to 440 degrees) without twisting the neutral wire in one direction.

The S-jet stranded wire is periodically changed in the direction in which the stranded wire of the neutral wire is twisted on the conductor, so that the neutral wire is not in a state of being twisted by the conductor, but in an extended state. Therefore, if a slight external force is applied while the neutral wire is free without external support, the shape of the neutral wire across the conductor may flow or be released at all.

SJT method having such disadvantages has a tendency to prefer the use of this method because it has superior shielding ability compared to the input amount of neutral wire compared to SZT or jet stranded methods.

As a device for performing a conventional SJT strand system, as shown in FIG. 2, an SJT strander 10 is provided on the left side of the drawing, and the binder 20 is spaced apart from the side of the stranded machine 10. ) Is provided, the cable passing through the binder 20 at intervals on one side of the binder 20 is transferred to the next step. This apparatus is performed as a series of continuous processes.

Here, the cable 1 passed through the SJT twister 10 binds the yarns so as not to disturb the neutral line 6 outside the SJT stranded neutral line 6 while passing through the binder 20. The binder 20 consists of a support 21 and a flywheel 22 provided on one side of the support 21. The flywheel 22 is provided with a branch pipe 23 for binding the neutral wire 6 provided around the strand through the yarn.

The yarn is wound around the branch pipe 23 so as to bind the neutral wire 6 arranged on the cable 1 while unwinding like a failure.

A passage 20a is provided inside the binder 20 including the support 21, the flywheel 22, and the branch pipe 23, and the SJet neutral line coming out of the twisted pair 10 through the passage 20a ( 6) The wound around the cable (1) passes through. In the passage of the passage 20a, the diameter of the passage 20a is conventionally formed larger than the outer diameter of the cable 1 so that the passage of the cable 1 can be smoothly made.

In addition, since the cable 1 is manufactured to have various outer diameters, the diameter of the passage 20a is generally large to accommodate all of them.

In addition, one side of the binder 20 is provided with a branch storage portion 30 for replacing when the yarn 24 wound around the outer peripheral surface of the branch pipe 23 is exhausted.

The bound cable 1 passes through the branch storage portion 30 and is transferred to the next process.

Therefore, when the diameter of the cable 1 is relatively smaller than the diameter of the inner passage 20a of the binder 20, as shown in FIG. 3, the SJT stranded neutral wire 6 is formed of the binder 20. In the passage 20a, a phenomenon of sagging or disturbing by gravity occurs, and since the neutral wire 6 is already disturbed even when bound by the yarn 24 while passing through the flywheel 22 of the binder 20, In other words, the problem is that the correct twisted pair cannot be achieved.

Therefore, the present invention is invented to solve the above-mentioned conventional problems, the neutral wire is passed through the binder while the neutral cable is passed through the binder, the neutral wire is not sag or undisturbed maintain the stranded state as it is It is an object of the present invention to provide a binder for a cable having a die provided with a die in an inner passage of the binder so as to have a good twisted state as a power cable.

The present invention for achieving the above object is a structure having a die formed in the passage formed in the interior of the binder, the through-hole is formed, the flange portion is formed so as to be exposed to the outside of the passage at one end.

The die is a single die formed integrally and can be inserted into the internal passage of the binder.

In addition, the through-hole is formed in the passage formed in the binder, each end is formed with a flange formed by dividing into two while forming a flange portion to be exposed to the outside of the passage.

The divided dice is a structure that can be divided to have equally equal lengths.

Moreover, one of the dice | dies is a structure which can form length smaller than the other dice | dies.

As described above, in the process of manufacturing a cable, a cable is passed through a binder in a process of inserting a die into a passage of a binder to bind a neutral wire through a neighboring binder and continuously maintaining the state after the twisted pair work is performed through the SJT twister. At the time, the neutral line has an effect of preventing the drooping or disturbing phenomenon.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a schematic diagram showing the installation of the present invention, a cross-sectional view showing a state that the cable twisted through the S-Jet strand twister passes through the binder with a die according to the present invention.

5 is a cross-sectional view showing another embodiment of the dice of the present invention.

It is sectional drawing which shows the internal diameter of the dice | dies of this invention.

FIG. 6B is a diagram illustrating pitches of neutral wires stranded by SJT cable. FIG.

Figure 6c is a diagram showing the distance between the cable and the neutral line.

Fig. 7 is a diagram showing a neutral line arrangement of cables passed through a binder with a die of the present invention.

The same components as in the prior art will be described with the same reference numerals, and detailed description thereof will be omitted, and new components will be described in detail with the new reference numerals.

As shown in the drawing, the present invention has a structure in which a die 40 having a through hole 40a having an inner diameter D is formed in a passage 20a formed in the binder 20.

The die 40 has a structure in which a flange portion 41 is formed on one side thereof so that the flange portion 41 is exposed to the outside when being inserted into the inner passage 20a of the binder 20.

The dice 40 may insert one die integrally formed into the internal passage 20a of the binder 20 or may be divided into two dice 50 and 51.

Of course, similar to the die 40, through holes 50a and 51a are formed in the die 40 so that stranded wires can pass therethrough, and flanges 50b and 51b are formed at one end thereof. Has a structure.

The dice 50 and 51 to be divided may be equally divided to have the same length, or one die 50 may have a smaller length than the other dice 51.

In the present invention, when the inner diameter of the dies 40, 50 and 51 is D and the outer diameter of the cable (including the neutral wire) is d, the relationship between the two is established by the following equation (1). Preferably.

0.95 ≤ d / D <1

In addition, as shown in FIG. 6B, the twisted pitch of the neutral wire 6 is P, the distance to the point bound after the twisted wire is L, the length of the short dice 50 is U1, and the length of the long dice 51 is U2. , It is preferable that the relationship between them is established by the following equation (2).

L- (U1 + U2) <P / 2 and U1 <P / 2

In addition, as shown in FIG. 6C, the distance from the center of the cable 1 to the center of the neutral wire 6 is R, the diameter of the neutral wire 6 is S, the number of neutral wires is N, the neutral wire 6 and the neutral wire ( When the length of the arc of 6) is C, it is preferable that the relationship between them is established by the following equation (3).

By the equation (3) it can represent the degree of arrangement of the neutral line (6).

0.5 {(πR-SN) / N-1} <C <1.5 {(πR-SN) / N-1}

In the present invention having such a configuration, as shown in FIG. 4 and FIG. 6A, the cable passing through the SJT twister 10 enters into the binder 20 installed at one side of the SJT twister 10. The passage 20a formed inside the binder 20 is provided with one die 40 having a through hole 40a having an inner diameter D, and passes through the through hole 40a of the die 40. Done. In the process of passing through the through-hole 40a of the die 40 in this way, the cable can pass through the neutral wire 6 wound around its outer shell without sagging.

In other words, the inner diameter D of the through hole 40a of the die 40 and the outer diameter d of the neutral wire 6 of the cable passing through the through hole 40a do not sag the neutral wire 6 of the cable. Because they have a gap.

In addition, since a flange portion 41 is formed at one end of the die 40 so as to be caught outside of the passage 20a of the binder 20, when the cable 1 passes, the die 40 Although the surface of the through hole 40a and the outer surface of the cable 1 are in contact with each other, the die 40 may be maintained in the inserted state by the flange portion 41 even if the die 40 is to be moved in the advancing direction of the cable 1.

Furthermore, when the standard of the cable 1 is different and the die is to be replaced with the die, the flange portion 41 of the die 40 inserted into the binder 20 is held by a separate tool, and then separated. You can replace it with a new die.

Meanwhile, in the present invention, as shown in FIG. 5, dice may be divided and provided. The two dice 50 and 51 may be formed to have a relatively short length. This is useful when the distance between the stranded wire 10 and the branch pipe storage part 30 respectively provided in the both sides of the binder 20 is small.

In other words, in a state where the flange portions 50b and 51b of the short die 50 and the long die 51 are inserted so as to be exposed to the outside of both ends of the through-hole 20a of the binder 20, the S-jet is inserted. When the cable 1 passing through the twisted pair 10 passes through the through-holes 50a and 51a of the dies 50 and 51, respectively, and flows into the branch pipe storage unit 30, when a new die is to be replaced. Similarly, when the dies 40 are replaced, the flanges 50b are formed at one end of each die 50 and 51 and are exposed to the outside of the through hole 20a of the binder 20, respectively. 51b) by a separate tool, pull the short dice 50 in opposite directions, i.e., the SJT strand 10, and the long dice 51 toward the branch pipe storage 30, respectively, Just insert a new dice.

Although the present invention has been described for the embodiments of the present invention based on the accompanying drawings for convenience, it is obvious that various modifications and variations are possible.

1 is a cross-sectional view of a conventional power cable.

Figure 2 is a cross-sectional view showing a state that the cable drawn from the conventional S-jet twisted pair passes through the binder.

FIG. 3 is a diagram illustrating a neutral line arrangement of an SJT stranded cable passed by a conventional binder. FIG.

Figure 4 is a schematic diagram showing the installation of the present invention, a cross-sectional view showing a state that the cable twisted through the S-Jet strand twister passes through the binder with a die according to the present invention.

5 is a cross-sectional view showing another embodiment of the dice of the present invention.

It is sectional drawing which shows the internal diameter of the dice | dies of this invention.

FIG. 6B is a diagram illustrating pitches of neutral wires stranded by SJT cable. FIG.

Figure 6c is a diagram showing the distance between the cable and the neutral line.

Fig. 7 is a diagram showing a neutral line arrangement of cables passed through a binder with a die of the present invention.

[Code Description in Drawings]

1: Cable

6: neutral wire

10: S-Jet Twisting Machine

20: binder

20a: passage

21: support

22: flywheel

23: branch pipe

24: Yarn

30: branch storage

40: dice

40a: through hole

41: flange portion

50,51: Dice

50a, 51a: Through hole

50b, 51b: Flange

Claims (8)

In the passage 20a formed inside the binder 20, a through hole is formed, and a die is provided, at one end of which a flange portion is formed to be exposed to the outside of the passage 20a. Binder for Cable Manufacturing. The method according to claim 1, The die is a single die (40) formed integrally, it can be inserted into the inner passage (20a) of the binder 20, a binder for producing a cable with a die. In the passage 20a formed inside the binder 20, through holes are formed, and flanges are formed at each end so as to be exposed to the outside of the passage 20a. A binder for producing a cable with a die, characterized by the above-mentioned. The method according to claim 3, The divided dice (50) (51) is a binder for producing a cable with a die, characterized in that can be divided evenly to have the same length. The method according to claim 3, The binder for cable manufacture with dice | dies with which the dice | dies of the said dice | dies can form smaller length than the other dice | dies 51. The method according to claim 1 or 3, The die is a binder for producing a cable with a die, characterized in that to satisfy the following equation. [Equation] 0.95 ≤ d / D <1 Here, the inner diameter of the die is D, and the outer diameter (including the neutral wire) of the cable is d. The method according to claim 3, The die is a binder for producing a cable with a die, characterized in that to satisfy the following equation. [Equation] L- (U1 + U2) <P / 2 and U1 <P / 2 Here, the stranded pitch of the neutral wire 6 is P, the distance to the point bound after the stranded wire is L, the length of the dice 50 is U1, and the length of the dice 51 is U2. The method according to claim 3, The die is a binder for producing a cable with a die, characterized in that to satisfy the following equation. [Equation] 0.5 {(πR-SN) / N-1} <C <1.5 {(πR-SN) / N-1} Here, the distance from the center of the cable to the center of the neutral wire 6 is R, the diameter of the neutral wire 6 is S, the number of neutral wires is N, and the length of the arc of the neutral wire 6 and the neutral wire 6 is C.

Images