JPH0524694Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a side-type tape winding machine that can select between loose tape winding and strong tape winding.

[Conventional technology]

When manufacturing electrical cables, insulated core wires are assembled or twisted together and then wrapped with tape.

In particular, communication cables are made by twisting insulated core wires in pairs or star-twisting, collecting 10 pairs to form a subunit, and further collecting the subunits to form a unit.
Furthermore, several units are assembled and outer peripheral paper (kraft paper) is taped on top of them.

This tape winding machine A is usually
It is configured as shown in the figure. That is, on the axis of the cable core a from a cable twisting machine (not shown) or the like, bearing frames 1,
1 is erected, and hollow shafts 2, 2 through which a cable core a passes through both bearing frames 1, 1 are rotatably provided via bearings 3. Flanges 4, 4 fixed to opposite ends of both hollow shafts 2, 2
In between, four columns 5 parallel to the feeding direction P are installed, and in these two columns 5, 5 (upper right side and lower left side in Fig. 4), a die 6 through which the cable core a passes is mounted. A diagonal yoke 8 rotatably supported via a yoke 7 is provided so as to be movable and fixed in the axial direction (see FIG. 1).
The yoke 8 is fixed, for example, by the support part 8 of the column 5.
This is done by providing a bolt at a and pressing the bolt against the column 5.

The hollow shaft 2 on the stranding machine side (right side in Figure 2) has
Upstream of the die 6 in the feeding direction, a tape holding and feeding means is provided for feeding and winding the tape t around the cable core a. This means is based on the hollow shaft 2
A tape bobbin 9 is rotatably attached to both sides of the cable core a, and the tape t is passed from the bobbin 9 through a guide roller 10 to the cable core a.
The tape t is fed out from the bobbin 9 by the movement of the cable core a.

Further, a pulley 11 is provided on the hollow shaft 2 on the wire twisting machine side via a slip ring (not shown), and rotational force is transmitted to this pulley 11 from the drive machine B via a timing belt 12. , hollow shaft 2
rotates in accordance with the feeding speed of cable core a, and tape t is wound around the circumferential surface of cable core a. The drive machine B consists of a potentiometer 13 and a reducer 14, and this reducer 14 is connected to a driving line shaft 15 of each machine installed along the cable production line consisting of a stranding machine, a gathering machine, etc. They are connected via a timing belt 16, and the tape winding machine A is driven by this line shaft 15. Note that 17 is a support roller for the cable core a, and 18 is a movable cover of the tape winding machine A.

[The problem that the idea attempts to solve]

By the way, depending on the target cable a, there are cases in which the taping needs to be done loosely and cases in which it is necessary to be taped strongly. That is, cable core a
If the cable core a is twisted softly, the twist of the cable core a will be mixed with the winding tension of the tape t, and the twist will become untwisted, so the tape t must be wound loosely.On the other hand, if the cable core a is tightly twisted In such a case, it is preferable to wrap the tape t so as to tighten it tightly, so that the twist of the cable core a does not exceed the winding tension of the tape t.

However, in the conventional tape winding machine A, the strength of the tape winding is determined by selectively replacing the dies 6 having different weights and penetration resistances, resulting in very poor workability.

In view of the above points, the present invention aims to provide a tape winding machine that can easily select between loose taping and strong taping.

[Means for solving the problems]

In order to achieve the above purpose, in this invention,
In the tape winding machine described above, the die can be selectively fixed or rotatable relative to the yoke.

[Function] When the cable core is tightly twisted, the tape winding machine configured as described above fixes the die to the yoke and rotates it together with the yoke, and uses the rotational force of the die to wind the cable through the tape. Tape while squeezing the core. On the other hand, if the cable core is soft, the die is made rotatable relative to the yoke so as not to rotate together with the yoke, and taping is performed without applying the squeezing force of the die to the cable core.

〔Example〕

In the tape winding machine A shown in FIGS. 2 to 4, a die case 20 is integrally formed in the center of the yoke 8, as shown in FIG. A holder 21 and a die 6 are rotatably attached. The dice 6 are appropriately selected to correspond to the outer diameter of the cable core a, and are fitted into the dice holder 21.

An L-shaped metal fitting 22 is passed between the die case 20 and the die holder 21, and this metal fitting 22 is bolted to the die case 20, and is attached to the hole 23 on the die holder 21 side by a spring in the insertion direction. By dropping the biased pin 24 and inserting and fixing it into the die holder 21, the die case 20 and the die holder 21 are integrated via the metal fittings 22. That is, the dice 6 are fixed to the yoke 8. Dice case 20 with metal fittings 22
For attachment to the die holder 21, other known means such as tightening all bolts may be used.

In this embodiment, by dropping or pulling out the pin 24 into the metal fitting 22, the die 6 can be selectively fixed or rotated with respect to the yoke 8, and the die 6 is taped in accordance with the degree of twist of the cable core a. .

[Effect of idea]

As can be understood from the above explanation, the present invention is
By fixing the die to the yoke or making it rotatable, it is possible to selectively wrap the tape in a loose manner or in a strong manner. That is, according to the present invention, even with a simple structure, it is possible to perform gentle and strong tape winding.

[Brief explanation of drawings]

FIG. 1 is a perspective view of essential parts of an embodiment of a tape winding machine according to the present invention, and FIGS. 2 to 4 are a front view, a top view, and a left side view of the tape winding machine. A... Tape winding machine, B... Drive machine, a... Cable core, t... Tape, p... Feeding direction,
1... Bearing frame, 2... Hollow shaft, 3... Bearing, 4... Flange, 5... Column, 6...
Dice, 7...Bearing, 8...Yoke, 9...
...Tape bobbin, 10...Guide roller, 20...
... Dice case, 21 ... Dice holder, 22
...Metal fittings, 24...pin.

Claims (1)

[Scope of utility model registration request] A bearing frame is erected on the axis of the cable core from a cable twisting machine, etc., and spaced apart in the axial direction.
A hollow shaft through which the cable core passes is rotatably provided in this bearing frame, a column parallel to the feeding direction is installed between flanges fixed to opposite ends of the hollow shaft, and the column is connected to the cable core. A yoke that rotatably supports a die through which the wire passes through is provided so as to be movable and fixed in the axial direction, and a hollow shaft on the side of the twisting machine is provided with a yoke that rotatably supports the die passing through the cable core in the feeding direction upstream of the die. A tape winding machine is provided with a tape holding and feeding means for feeding and winding the tape, and a drive means for rotating the hollow shaft in accordance with the feeding speed of the cable core, wherein the die is attached to the yoke. On the other hand, a tape winding machine is characterized in that it can be selectively fixed or rotatable.