JP2804855B2 - Striatal assembly method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling striatum.

[0002]

2. Description of the Related Art A conventional method of assembling striatum will be described with reference to FIG. The present invention can be applied to any method of twisting and gathering the striated bodies. For example, around the center line C sent from the center line sending device 1, around the center line C sent from the vertical type peripheral line sending device 2 with twisting. Let us consider a case where the wire W is twisted and assembled in the assembly die 5 via the distribution plate 4. For simplicity of explanation, the apparatus shown in FIG. 3 omits ancillary devices such as a tape winding device and a take-off device. The rotating device 6 is composed of only basic components. As the peripheral line sending device 2, a vertical type as shown in the figure is often used to save the installation space. In the apparatus of FIG. 3, the surrounding wire W sent out from the bobbin 21 is twisted in the Z direction by rotating the frame of the surrounding wire sending device 2 as shown by the arrow in the figure,
After the running direction is changed by the direction changing pulley 3,
It is gathered around the center line C in the distribution board 4 and twisted and assembled into an S twist by the rotation of the winding rotating device 6 in the direction of the arrow shown in the drawing.

[0003]

When a vertical type peripheral line sending device 2 is used, although the space saving effect is improved as described above, the peripheral line W is connected to the direction changing pulley 3.
And the traveling direction must be changed to the same lateral direction as the center line C. At this time, the twist given to the peripheral line W by the friction between the peripheral line W and the direction changing pulley 3 The spillover in the longitudinal direction of the wire is prevented, so that the twisting does not take the ideal form of being uniformly distributed along the longitudinal direction of the surrounding wire W, but on the upstream side of the diverting pulley 3 Twisting accumulates, and the torsional stress of the surrounding wire W becomes excessively large. Conversely, there is a disadvantage that the twisting is not sufficiently applied on the downstream side. Such a situation,
There is almost no problem when the surrounding wire W is a small-diameter soft copper wire that is easily plastically deformed. However, when the surrounding wire W is an optical fiber spacer cable, it causes a serious problem in view of its material and outer diameter.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its gist that an appropriate auxiliary twist is given to a sent-out peripheral line along its traveling route. In turn, a plurality of twisted perimeter wires are sent out around the center line and
And the direction of travel of each peripheral line
That are upstream and downstream of the diverting pulley.
At least one position, at least two positions in total , each of the peripheral wires is provided with an auxiliary twist having the same direction and the same angle as that of the twisting, so that the peripheral wires are uniformly distributed in the longitudinal direction. A method of assembling striatum, characterized in that the striated body is sent to the assembling die with a distributed twist.

[0005]

Since the same auxiliary twist as twisting is appropriately given in the middle of the traveling route of the surrounding wire, the degree of twisting of the surrounding wire can always be maintained at a desired constant value in the middle of the running route. .

[0006]

1 and 2 show an example of an apparatus for carrying out the method of the present invention, and the method of the present invention will be described with reference to FIGS. The center line C (in many cases, this is a tension member) is sent from the center line sending device 1 without twisting. The plurality of surrounding lines W are sent out from the surrounding line sending device 2 by twisting in the Z direction, for example, by rotating the frame in the direction indicated by the arrow in the figure. This is because a collective twist in the S direction is given by the rotation of the take-up rotating device 6 in the direction of the arrow shown below, and the collective twist is applied to the surrounding wire W such that no torsional stress remains on the surrounding wire W as a result of the collective twist. In the opposite direction (that is, in the Z direction in this case) and at the same angle. After leaving the vertical peripheral line sending device 2, the peripheral line W is wrapped around the diverting pulley 3 in order to turn the traveling direction in the horizontal direction, and then passes through the distribution plate 4 and is assembled in the collecting die 5. Are twisted together according to the rotation of the take-up rotation device 6.

According to the present invention, at an appropriate position between the sending device 2 and the collecting die 5 in the middle of the path of the peripheral line W, preferably at two positions on the upstream side and the downstream side of the diverting pulley 3. The auxiliary twisting device 7 is provided so as to apply the auxiliary twist to the surrounding wire W in the same direction and the same angle as the twisting. The auxiliary twisting device 7 may be further provided immediately before the distribution plate 4.

[0008] Structure Examples of the auxiliary twisting device 7 shown in FIG. In FIG. 2, two fixed rollers 7 are provided inside a hollow cylindrical frame 71 which is driven to rotate via a pulley 72.
3 and staggered with respect to these,
, Two pressing rollers 74 constantly pressed against the fixed roller 73 are provided. Since the peripheral line W is sandwiched between the fixed roller 73 and the pressing roller 74, the rotation around the axis is suppressed, and the rotation of the frame 71 provided via the pulley 72 imparts a desired auxiliary twist.

[0009]

According to the present invention , the same auxiliary twist as the twisting is appropriately given in the middle of the traveling route of the peripheral wire. There is an advantage that the cable can be maintained at a desired constant value in the middle of the path, and as a result, a high-quality collective cable can be manufactured without leaving undesired torsional stress in the surrounding wire inside the collective cable.

[Brief description of the drawings]

FIG. 1 is a simplified side view showing an example of an apparatus for carrying out the present invention.

FIG. 2 is a side sectional view showing a structural example of an auxiliary twisting device used in the present invention.

FIG. 3 is a simplified side view showing the basic configuration of a conventional typical collecting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Center line sending device 2 Perimeter line sending device 3 Direction change pulley 5 Assembly die 6 Winding rotation device 7 Auxiliary twisting device C Center line W Perimeter line

Claims (1)

(57) [Claims] 1. A collective die for feeding a plurality of twisted peripheral wires (W) around a centerline (C).
At the time of twisting and assembling in (5), on the diverting pulley (3) that changes the running direction of each of the peripheral lines (W).
At least one at each of the upstream and downstream sides,
At least at two places , each of the peripheral wires (W) is provided with an auxiliary twist having the same direction and the same angle as the twist, so that the peripheral wires (W) have a twist that is uniformly distributed in the longitudinal direction. A method for assembling the striatum, wherein the striatum is sent to the assembly die (5).