JPH0246502B2 - KEEBURUNOMAKITORIHOHO - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cable twisting method in which the winding side is rotated, and to an improvement in a cable winding method for iron wire sheathing and the like.

In the case of cable twisting and iron wire sheathing, cables are sometimes wound up using a cable winding device that has a cable winding drum and a traverser installed on a rotating frame, and the weight of the cable itself is large or the moving parts of the traverser are too heavy. When the weight of the rotary frame becomes large, the moment relative to the center of rotation of the rotary frame will fluctuate significantly.

Figure 1 shows the above cable winding device, 1'
2' is a rotating frame that rotates around point O', 2' is a cable winding drum installed on the rotating frame, and 3' is a cable winding drum that is used to wind the cable in line with the winding drum as the cable winding progresses. This is a traverser that moves its position, and 30' is a traverser guide as a moving part of the traverser.

Now, in Fig. 1, the cable winding progresses in the m' direction, and the traverser guide moves along the central axis Y-
The unbalanced moment △M when located at a distance x from Y is, if the weight of the traverser guide is W ₀ , the cable diameter is d, the cable weight per turn is W, and the drum width is 2l, then △M= xW ₀ +Wx ² /2d−Wl ² /2d −.

Also, in Figure 1, the unbalance moment when the cable winding progresses in the n' direction (opposite to the above m' direction) and the traverser guide is at a distance x from the central axis Y-Y. ΔM becomes ΔM=xW ₀ +(l−x)W/d(x+l−x/2)=xW ₀ −Wx ² /2d+Wl ² /2d −′.

However, the unbalanced moment ΔM represented by ` and ′ is illustrated in FIG. 2.

This unbalanced moment is about the central axis Y-Y and varies depending on the distance x. The unbalance moment about the central axis XX is constant. This unbalanced moment about the central axis XX is fixed and can be removed by appropriately setting the center of gravity of the winding device, but the unbalanced moment about the central axis Y-Y can be removed. cannot be removed by such means. However, when this unbalanced moment becomes large, when the winding machine is rotated, the driving force fluctuates periodically with each rotation, and as a result, the drive force is affected by the transmission parts such as the shaft of the drive system. Severe vibration stress occurs, leading to fatigue failure, failure due to vibration, and a shortened lifespan of each part. To counter this, it was usually necessary to significantly increase the strength of each part, such as by increasing the size of the drive system components of the machine. Furthermore, when a taping machine is included in the drive system, it is also a cause of irregularities in the pitch of the taping.

The present invention proposes a method for smoothly winding a cable without the above-mentioned disadvantages.

That is, the present invention provides a method for winding a cable using a cable winding device in which a cable winding drum and a traverser are provided on a rotating frame, in which a movable balancer weight is provided on the rotating frame, and the traverser is moved relative to the center of rotation of the rotating frame. A method characterized in that the balancer weight is moved in accordance with fluctuations in the total moment so as to balance the total fluctuation moment due to the movement of the moving part and the fluctuation moment due to the winding position of the cable wound around the drum. be.

The present invention will be explained below with reference to the drawings.

FIG. 3A is an explanatory side view showing the cable winding device used in the present invention, and FIG. 3B is an explanatory cross-sectional view taken along line bb in FIG. 3A.

In FIG. 3A and FIG. 3B, 1 is a rotating frame, which can be rotated into R or anti-R by a drive source (not shown).
rotated in the direction Reference numeral 2 denotes a cable winding drum attached to the rotating frame 1, which is rotated in the T direction for winding by a transmission mechanism provided on the rotating frame. 3
is a traverser provided on the rotating frame 1, and is composed of a screw shaft 31 and a traverser moving part (traverser guide) 32 screwed onto the screw shaft.The screw shaft 31 is driven by a transmission mechanism provided on the rotating frame 1. It is rotated. 41 is a screw shaft for moving the balancer weight provided in the rotating frame 1;
A movable balancer weight 42 is screwed onto the screw shaft, and is moved by the rotation of the screw shaft 41. The screw shaft 41 is rotated by a transmission mechanism provided in the rotating frame 1.

When winding a cable with the cable winding device, the unbalanced moment changes as shown by ΔM in FIG. 4A as the traverser guide moves and the cable winding around the drum progresses.

According to the present invention, the position of the movable balancer weight is varied so that the unbalanced moment ΔM is canceled out by the moment generated by the movable balancer weight 42, and the unbalanced moment ΔM is reduced during winding of the cable. It can be reduced to almost zero.

In this case, to control the movement of the movable balancer weight 42, the moving direction and position Ideally, the position y of the weight is calculated and the balancer weight 42 is moved according to this calculation formula y.

However, in order to simplify the control mechanism of the balancer weight, the unbalanced moments are approximated as shown in Figure 4 A, A, B, C, D, E, F, and the unbalanced moments are approximated. It is also possible to control the movement of the balancer weight so as to negate this. In this case, the beginning of winding the cable is A in Figure 4.
If it is point A in FIG. 1, that is, if the traverser starts from the left end x=-l in FIG. 1, then the balancer weight will start from point A in FIG. It suffices to move in the order of the arrows corresponding to E and F. If the moving speed of the traverser is V ₀ and the balancer weight is moved at a constant speed, the moving speed V ₁ may be set as V ₁ =V ₀ ·l ₂ /l.

As described above, according to the present invention, when a cable is wound by a cable winding device in which a cable winding drum and a traverser are provided on a rotating frame, there is no problem that acts on the rotating frame as the cable winding progresses. Since the balance moment can be reduced to almost zero, the rotation of the rotating frame can be made smoother. Disadvantages such as premature damage to the conducting part can therefore be avoided.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing a conventional cable winding method, Fig. 2 is a diagram showing unbalanced moments in the same winding method, and Fig. 3A is a side explanatory diagram showing a cable winding device used in the present invention. , FIG. 3B is an explanatory cross-sectional view taken along line bb in FIG. 3A, and FIGS. 4A and 4B are explanatory diagrams showing movement control of the balancer weight in the present invention. In the figure, 1 is a rotating frame, 2 is a winding drum, and 3
is a traverser, 32 is a traverser moving part, 42
is a movable balancer weight.

Claims (1)

[Claims] 1. In a method of winding a cable using a cable winding device in which a cable winding drum and a traverser are provided on a rotating frame, a movable balancer weight is provided on the rotating frame, and the movement of the movable part of the traverser with respect to the rotation center of the rotating frame is A cable winding method characterized in that the balancer weight is moved in accordance with fluctuations in the total moment so as to balance the total fluctuation moment due to the winding position of the cable wound around the drum.