JPH11281858A - Stranding device for deformed section wire body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fall a core in a groove and to direct the opening part of the groove always out when a cable core is manufactured by stranding. SOLUTION: This stranding device has a rotary eyeboard which rotates around a center member 6 together with a deformed section wire body 5, the rotary eyeboad 2 is provided with a nearly cylindrical holder 3 integrally downstream in the moving direction of the center member 6, and a jig 4 which has a guide hole 41 and a claw 42 for inserting a core 9 into the groove after it passes by the rotary eyeboard 2 is fixed between the holder 3 and rotary eyeboard 2; while the attitude of the groove of the deformed-section wire body 5 which is gathered and wound around the center member 6 is held always in a fixed direction about the center member 6, the core 9 is fallen in the groove.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an irregular shape for forming a cable by twisting a plurality of irregularly shaped linear members having grooves along the length (axial) direction around a central member (tension member). The present invention relates to an apparatus for twisting a cross-section linear body.

[0002]

2. Description of the Related Art A plurality of optical fibers are inserted into a central member (grooves formed on an outer peripheral surface) into which optical fibers are inserted to form a cable core 10 as shown in FIG. An irregularly-shaped linear body 5 is used.

[0003] The irregularly-shaped cross-sectional striated body 5 is notched with a groove 5A having a C-shaped cross section in the axial (length) direction. If necessary, an optical fiber core (not shown) can be inserted through the groove 5A. Although a cable that can be taken out has been proposed, since it is wound in a twisted state, the groove (opening) always faces outward with respect to the central member so that the optical fiber can be taken out. It is necessary to be.

[0004]

However, when the irregularly shaped cross-sectioned filaments are twisted, when the irregularly-shaped cross-sectioned filaments are subjected to SZ twisting or single twist, the posture of the irregularly-shaped cross-sectioned filaments is changed. It is easy to shift, and the opening of the groove does not always face outward.

[0005] In view of the above-mentioned drawbacks, the present invention can always arrange the grooves (opening portions) in a fixed direction (for example, facing outward) when a cable is manufactured by twisting the wires having an irregular cross section. In addition to this, it is possible to provide a twisting device for a wire with an irregular cross-section that can not only perform this alignment but also insert and drop an optical fiber into the groove at the time of alignment just before twisting. It is intended to do so.

[0006]

Means for Solving the Problems That is, this claim 1
The invention described in (1) is a twisting device that inserts a core wire into a groove provided in the axial direction of the irregularly-shaped cross-sectioned linear body, and twists the irregularly-shaped cross-sectionally linear body around a central member. The joint device has a rotatable plate that rotates around the central member together with the deformed cross-sectional striated body, and a substantially cylindrical holder is integrally provided on the rotatable plate on the downstream side in the moving direction of the central member. A jig having a guide hole and a claw for inserting the core wire after passing the rotatable plate into the groove is fixed between the holder and the rotatable plate, and assembled and wound around the central member. The configuration is such that the core wire is dropped into the groove while the posture of the groove of the irregularly-shaped linear body is always kept in a fixed direction with respect to the central member.

[0007]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic cross-sectional view showing a main part of a twisting device 1 according to the present invention, in particular, a turning board 2 and the like. In the twisting device of this embodiment, a substantially cylindrical holder 3 is fixed to a disc-shaped rotary eye plate 2.
Also, a jig 4 (the same number as the irregularly shaped linear body 5) is concentrically and conformally fixed to the holder 3.

In FIG. 1, reference numeral 6 denotes a central member, 7
Is a collective binder for fixing the deformed cross-section striated body by winding a wire 70 such as tape on the tension member together with the deformed cross-section striated body, and 8 is a tooth 2A engraved on the outer peripheral surface of the rotary plate 2.
Shows a motor for driving the gear 80 which is screwed and rotated.

As shown in FIG. 2, a holder 3 is integrally fitted to and fixed to the right side (in FIG. 1) (downstream side surface of the center member 6 in the running direction) of the turning board 2. A large through-hole 21 through which the irregularly-shaped striated body 5 and the central member 6 are inserted is formed at the center of the rotatable plate 2. On the other hand, a disk-shaped cover member 20 is screwed to the left surface (in FIG. 1) of the rotary eye plate 2. The cover member 20 has a central hole 2 through which the tension member 6 and the irregularly-shaped linear body 5 pass.
0A and a hole 20B are opened, and a core wire 9 such as an optical fiber core wire (to be inserted into the groove of the irregularly shaped linear body 5).
20C is also opened.

[0010] The holder 3 is screwed and integrated with the rotary eye plate 2. The holder 3 is formed with a large hole 31 through which the irregularly-shaped striated body 5 and the center member 6 are inserted on the left surface (in FIG. 1) facing the rotating eye plate 2 and at the center of the right surface (opposite surface). A center hole 32 through which the center member 6 passes is formed. Around the center hole 32, there are formed holes 33 formed in the same number as the irregularly-shaped striated body 5 in a conformal and concentric manner.

The jig 4 shown in FIG. 3 is provided on the tip end side in a slanted state in order to insert the core wire 9 passing through the insertion hole 20C of the rotatable plate 2 into the groove 5A of the irregularly shaped linear body 5. And is fixed between the holder 3 and the turning plate 2. Further, as shown in FIG. 3, a part of the guide hole 41 has a claw 42 which enters the groove 5A (of the irregularly-shaped linear body 5).

Therefore, if each deformed cross-section linear body 5 is passed through the rotatable plate 2 and the holder 3 so that the claw 42 of the jig 4 is engaged with the groove 5A, the twisting is performed together with the rotatable plate 2. In this case, the deviation of the posture of each irregularly-shaped cross-section striated body 5 is suppressed by the claw 42, so that the deviation of the groove 5 </ b> A due to the rotating operation of the rotatable plate 2 can be prevented. Further, according to this embodiment, even if the shape of the groove of the irregularly-shaped cross-sectional striated body is different, if a jig having a claw corresponding thereto is prepared, the holder 3 can be appropriately replaced.
Can be attached to

Further, according to this embodiment, immediately before the twisting, simultaneously with the control of the posture of the irregularly-shaped cross-sectional striated body 5, as shown in FIG. The core wire 9 can be inserted and dropped.

[0014]

As described above, according to the present invention, there is provided a rotatable plate which rotates around a central member together with a deformed linear member, and the rotatable plate has a substantially cylindrical holder. Is provided integrally on the downstream side in the moving direction of the central member, and a jig having a guide hole and a claw for inserting the core wire after passing the rotatable plate into the groove is fixed between the holder and the rotatable plate. If the claws of the jig are engaged with the grooves (openings) of the irregularly shaped striated body, the grooves of the irregularly shaped striated bodies can be prevented from being displaced by the claws. The inconvenience such that the direction of the groove is shifted can be effectively prevented with a simple configuration.

Moreover, according to the present invention, the core wire can be inserted into the groove along the guide hole provided in the jig at the same time as the operation of aligning the grooves of the irregularly shaped linear body. Thus, the efficiency of the cable manufacturing operation can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a main part of a twisting device according to the present invention.

FIG. 2 is an exploded perspective view of a main part of the apparatus.

FIG. 3 is a perspective view showing a jig of the present invention.

FIG. 4 is a schematic sectional view showing a cable core.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Twisting device 2 Rotation board 3 Holder 4 Jig 41 Guide hole 42 Claw 5 Irregular cross section linear body 6 Central member

Claims (1)

[Claims] 1. A core wire (9) is inserted into a groove (5A) provided in the axial direction of a deformed cross-section striated body (5), and the deformed cross-section striated body (5) is inserted into a center member (6). A twisting device for twisting a plurality of twists around the twisting device, the twisting device having a rotatable plate (2) that rotates around the central member (6) together with the deformed cross-section linear body (5); A substantially cylindrical holder (3) is provided integrally with the turning plate (2) on the downstream side in the moving direction of the center member (6), and is provided between the holder (3) and the turning plate (2). Is a jig (4) having a guide hole (41) and a claw (42) for inserting the core wire (9) after passing through the rotatable plate (2) into the groove (5A).
And the groove (5A) of the irregularly-shaped linear body (5) assembled and wound around the central member (6) while keeping the posture of the groove (5A) always constant with respect to the central member (6). (5A) An apparatus for twisting a wire with a modified cross section, wherein the core wire (9) is dropped into the wire.