JPH0572687B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device for winding a plurality of filament bodies around a cable or the like while alternately twisting them in reverse, and more specifically, a device for winding a cable with a shield wire or a metal wire for use in stirrups. The present invention relates to a winding device for an alternately reverse twisted wire body that is wound while performing mutually reverse twisting.

[Prior art] Shield wires such as copper wires, copper alloy wires, aluminum alloy wires, etc. are alternately twisted into S-twist and Z-twist on the circumferential surface of the external semiconductive layer of the cable core for the purpose of electrical isolation. Iron wire,
Conventionally, a wire wrapping device having a structure shown in FIG. 2 has been used for winding armored metal wires such as steel wires in S-twist and Z-twist while alternating reverse twisting.

That is, this conventional winding device has a hollow inverted eye plate 3 having a cable passage hole 3a at the center and a plurality of filament guide holes 3b formed concentrically.
A fixed support base 5 rotatably supports the reversing batten 3 via a bearing 4 such as a bearing, and a drive source 6 for reversing the batten for alternately reversing the reversing batten 3 in forward and reverse directions. It consists of its main parts.

The reversing eye plate 3 is formed with a rotation support part 3c made of a short cylindrical body with a relatively thick wall, and a ratchet wheel 3d provided in a flange shape on the rear outer peripheral surface of the short cylindrical body, A plurality of the above-mentioned filament guide holes 3b are bored at equal intervals on the same circumference in parallel to the cable passage hole 3a in the upper air-thick rotation support portion 3c.

The rotation support part 3c of the reversing eye plate 3 formed in this way is rotatably attached to the fixed support base 5 by a bearing 4, and the output shaft of the drive source 6 is connected to the ratchet wheel 3d via a chain 7. has been done. The drive source 6 is composed of a reversible motor or the like, and a ratchet wheel 6a fixed to its output shaft and the ratchet wheel 3d are connected by a chain 7. This connecting means may be connected by a V belt, a timing belt, etc.
In this case, the ratchet wheels 3b and 6a are formed of pulleys or gears.

In the winding device configured in this way, the cable 2 is inserted into the cable passing hole 3 of the inverted batten 3.
When the wire 1, such as a shield wire, is guided through the wire guide hole 3b and is guided through the wire guide hole 3b, the wire 1, which is guided through the wire guide hole 3b, touches the surface of the cable 2 due to normal or reverse rotation of the batten 3. wrapped around. That is, since the batten 3 is alternately rotated forward and reversely by the reversal drive source 6, as a result, a plurality of filament bodies 1 such as shield wires are formed on the surface of the cable 2.
It can be wound in a twist or Z twist. Then, as shown by the two-dot chain line in FIG. 2, in order to hold the cable 2 and suppress untwisting of the filament, a reversing die 8 that rotates together with the reversing batten 3 is fixed to the reversing batten 3,
A fixed die is provided which is directly attached to the fixed support stand 5.

[Problems to be Solved by the Invention] Incidentally, in the conventional winding device configured as described above, the twist point where the filament 1 pulled out from the filament guide hole 3b contacts the surface of the cable 2 The disadvantage is that the distance between the inverting batten and the inverting batten is long, and when the inverting batten is reversed, the rotation of the inverting batten is not directly transmitted to the striatum, making it impossible to obtain a predetermined inverted shape or angle.
Furthermore, since the distance from the filament guide hole 3b to the twisting point is long, the filament 1 becomes sagging, and the spacing between the filament bodies 1 varies, and in the case of a shield wire, the shield shape becomes disordered. There is a problem that the shield effect is impaired.

The object of the present invention is to eliminate the above-mentioned conventional drawbacks, transmit the rotation of the reversing batten directly to the filament body, keep the winding interval of the filament body constant, and obtain a predetermined reversal angle and winding shape. A winding device may also be provided for the alternatingly reverse twisted strands.

[Means and effects for solving the problems] The present invention is designed to be integrally attached to an inverted batten, inverted together with the batten, and pull out the filamentous body from the filamentary body guide hole 3b. It is a cylindrical body that protrudes toward the rear of the batten that directly guides the vicinity of the twisting point, and is provided with a linear body guide member having a plurality of diagonal guide holes at its tip. Therefore, the linear body is sent out through the guide hole formed at the rear end of the linear body guide member, and is pressed onto the cable by the inner surface of the edge-shaped body guide member and wound, so that the linear body is attached to the cable. It can be reliably aligned with the surface.

[Example] The present invention will be described below with reference to an illustrated example.

As shown in FIG. 1, in the winding device of the present invention, a filament guide portion 9 is provided in the hollow portion of the reversing batten 3, which rotates together with the reversing batten. The other components except for this linear body guide member 9, namely, a reversing eye plate 3, a drive source 6 for reversing the reversing eye plate 3 alternately in forward and reverse directions, and a bearing 4 for rotatably rotating the reversing eye plate 3. The structure of the fixed support base 5 and the like held by the holder is exactly the same as that of the conventional one shown in FIG. Therefore, the same reference numerals are given to the same constituent members as those of the conventional one, and the explanation of their structure and operation will be omitted.

The linear guide member 9 includes a short cylindrical body 9a through which the cable 2 is passed, a fixing end plate 9b integrally formed on the rear outer periphery of this body, and a large number of guides bored in the short cylindrical body 9a. The end plate 9b is integrated into the batten board 3 by fixing the end plate 9b to the exit side of the filament body inside the hollow part of the batten board 3.

The plurality of guide holes 9c are holes for guiding the filament 1 drawn through the filament guide hole 3b toward the vicinity of the twisting point of the filament. , the same number of wire guide holes 3b as the wire guide holes 3b are bored at equal intervals in a portion facing directly above the outer periphery of the cable near the twisting point. Therefore, the filament 1 that has passed through the filament guide hole 3b is guided by the guide hole 9c toward the outer peripheral surface of the cable in the vicinity of the twisting point to form a cylindrical filament on the cable surface. It is directly wrapped around the body guide member 9 while being pressed against both sides of the body guide member 9 and along the body guide member 9. Then,
There are no problems like in the past.

The filament guiding member 9 may be of any shape as long as it can forcibly guide a large number of filaments toward the twisting point of the filaments directly above the outer circumference of the cable. You may be guided by Furthermore, although the guide hole 9c is also formed as a through hole in the above embodiment, it goes without saying that it may be formed as a slit-like cut.

In addition, when there are many different cable sizes and twist pitch sizes, the above-mentioned filament guide member 9 may be constructed to be replaceable with respect to the inversion batten 3, but it is difficult to prepare guide members for each size. in case of,
If the structure is such that the guide position can be moved and adjusted in the table advancing direction and the cable radial direction, a considerable size range can be covered.

Further, in the above embodiment, the present invention is applied to a winding device, that is, a winding device that winds the shield wire around the cable while alternately twisting the armored metal wire around the cable. Needless to say, it can also be applied to cases where reverse twisting is performed.

[Effects of the Invention] As described above, according to the present invention, (1) the filament can be reliably and uniformly wound around the cable surface.

(2) A uniform shielding effect can be applied to any part of the kale.

(3) There is no untwisting or untwisted state, the set reversal angle and pitch can be obtained, and the predetermined twisted shape can be obtained.

It is possible to provide a winding device for alternately inverted twisted wire bodies that exhibits remarkable effects such as the following.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a winding device for an alternatingly reverse twisted wire body showing an embodiment of the present invention, and FIG. 2 is a cross sectional view of a conventional winding device for an alternating reverse twisted wire body. DESCRIPTION OF SYMBOLS 1...Striatal body, 2...Cable, 3...Reverse batten, 3a...Cable passage hole, 9...Striated body guide member.

Claims (1)

[Claims] 1. An inverted batten with a cable passage hole in the center,
In a winding device for an alternatingly reverse twisted wire body, in which a number of wire bodies are reversely twisted and wound around a cable which is alternately reversed in forward and reverse directions and is passed through the cable passing hole, , a cylindrical filament guide member having a large number of diagonally formed guide holes at the rear end that guides a large number of filaments toward the vicinity of the twisting point of the filament bodies is directed toward the rear of the inverted batten; An alternately reverse twisted wire body, characterized in that the plurality of wire bodies are attached so as to protrude and are wound along the cable surface while being pressed against the cable surface through the guide hole and on the inner surface of the tip of the cylindrical wire guide member. winding device.