JPS62222521A - Winding apparatus for alternately reversed stranded wires and strips - 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] [Industrial Application Field] 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 armored metal wire. The present invention relates to a winding device for an alternately reverse twisted wire body that is wound while performing alternately reverse twisting.

[Prior art] For the purpose of electrical shielding, shield wires such as copper wire, copper alloy wire, aluminum alloy wire, etc. are alternately twisted in S-twist and Z-twist on the circumferential surface of the external semiconductive layer of the cable core. Iron wire wrapped around and also on the circumference of the cable sheath for mechanical protection purposes.

Armored metal wires such as steel wires are alternately reverse twisted, S twisted, and Z twisted.
Conventionally, a device for winding a filament in a twisted manner has a structure shown in FIG. 2.

That is, this conventional winding device has a cable passage hole 3 in the center.
a, and several striatum guide holes 3 on a concentric circle.
A hollow reversing eye plate 3 with holes b, a fixed support base 5 that rotatably supports the reversing eye plate 3 via a bearing 4 such as a bearing, and an inverting eye plate 3 shown in l are arranged alternately in normal and reverse directions. The main part thereof is constituted by a drive source 6 for reversing the battens.

The reversing eye plate 3 is formed of a rotation support portion 3C made of a relatively thick short cylindrical body 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 filament guide holes 3b are formed in the thick rotary support portion 3C in parallel with the cable passage hole 3a at equal intervals around the same circumference.

Rotation support part 3C of the reversing mouth plate 3 formed in this way
is rotatably attached to a fixed support base 5 by a bearing 4,
The output shaft of the drive source 6 is connected to the model wheel 3d via a chain 7. The drive source 6 is a reversible motor or the like, and the mold wheel 6a fixed to its output shaft and the mold wheel 3d are connected by a chain 7. This connecting means may be connected by a V-belt, a timing belt, or the like, and in this case, the mold wheels 3d and 6a are formed by pulleys or gears.

In the winding device configured in this way, the cable 2 is passed through the cable passage hole 3a of the inverted batten 3,
When traveling in the direction of the arrow, the filament 1 such as a shield wire, which is guided through the filament guide hole 3b, is wound around the surface of the cable 2 by the forward or reverse rotation of the battens 3. That is, since the batten 3 is alternately rotated forward and backward by the reversal drive source 6, as a result, a plurality of filament bodies 1 such as shield wires are S-twisted on the surface of the cable 2.

Wound in a 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 opening plate 3 is fixed to the reversing opening plate 3. A fixed die is provided which is directly attached to the fixed support stand 5.

[Problems to be Solved by the Invention] By the way, in the conventional winding device configured as described above, the filament 1 pulled out from the filament guide hole 3b
The distance from the twisting point where the cable contacts the surface of the cable 2 is long, and when the reversing batten is reversed, the rotation of the reversing batten is not directly transmitted to the filament, making it impossible to obtain a predetermined reversal shape and reversal angle. In addition, since the distance from the filament guide hole 3b to the twisting point is long, the filament 1 becomes sagging, and the spacing between each filament 1 varies, and in the case of a shield wire, the shield There is a problem that the shape is disordered and the shielding 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. The present invention provides a winding device for an alternately reverse twisted wire body.

[Means and effects for solving the problems] The present invention has the following features:
It is integrally attached to the reversing eye board and is reversed together with the same eye board,
A filament guide member is provided to directly guide the filament drawn out from the filament guide hole 3b to the vicinity of the twisting point of the filament.

[Example] The present invention will be explained below with reference to an illustrated embodiment.

As shown in FIG. 1, in the winding device according to the present invention, a filament guide member 9 that rotates together with the reversing batten is provided in the hollow portion of the reversing batten 3. The other components except for this linear guide member 9, namely, a reversing eye plate 3, a drive source 6 for reversing the reversing aperture plate 3 alternately in forward and reverse directions, and a bearing 4 that allows the reversing eye plate 3 to rotate freely. The structure of the fixed support stand 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 parts 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 fixing end plate 9b is fixed to the filament outlet side in the hollow part of the inverted batten 3, thereby being integrated into the batten 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, and 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 striatum 1 that has passed through the striatum guide hole 3b is
Next, the guide hole 9C guides the cable toward the outer peripheral surface of the cable in the vicinity of the twisting point and winds it directly around the cable surface. Therefore, problems like the conventional ones do not occur.

In addition, the above-mentioned striatum guide part) f; 49 guides a large number of striatum,
The cable may have any shape as long as it can be forcibly guided directly above the outer periphery of the cable and near the twisting point of the filament, and may be guided by a pipe. Furthermore, the guide hole 9c
In the above embodiment, the holes are formed as through holes, but it goes without saying that they may be formed as slit-like cuts.

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 this case, if the guide position can be moved and adjusted in the cable traveling direction and cable radial direction,
A considerable size range can be covered.

Further, in the above embodiment, the present invention was applied to a winding device, that is, a winding device that winds a shield wire around a cable while alternately twisting the armored metal wire around the cable.
It goes without saying that the present invention can also be applied to cases where cable cores are alternately twisted in reverse.

[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) The shield can be wound with a uniform shielding effect on any part of the cable.

(3) There is no untwisting or untwisted state, the set reversal angle and pitch can be obtained, and a 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 drawings]

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 sectional view of a conventional winding device for an alternately reverse twisted wire body. be. 1......Striatal body 2...Cable 3...Inverted batten 3a...・・・・・・Cable passage hole 9・・・・・・
...Striatal body guide member patent applicant Hitachi Cable Co., Ltd. Figure 62

Claims (1)

[Claims] An inverted eye plate having a cable passage hole in the center is alternately inverted in forward and reverse directions, and a large number of filament bodies are inverted twisted and wound around the cable passed through the cable passage hole. In the winding device, a filament body guide member is provided directly above the cable outer periphery and is integrally provided on the reversing eye plate for guiding the plurality of filament bodies toward the vicinity of the twisting point of the filament bodies. A winding device characterized by: