JPS6145850A - Multi-wire winder - Google Patents

Abstract

PURPOSE:To manufacture wire coils of good quality by putting wires wound on respective bobbins in slide contact using a slide plate, and thereby eliminating risk of strain generation in the wires paid off from slitter. CONSTITUTION:A plurality of bobbins 14 are borne by a common guide shaft 12, and a slide plate 16 of teflon etc. having a low coefficient of friction is provided between each adjoining pair of bobbins 14. The wires 1 wound on these bobbins 14 are put in slide contact through the action of said slide plates 6, to eliminate necessity for widening the wire 1 paid off from the slitter, so that a good-quality wire coil 2 without wire crab strain can be accomplished. Further, each bobbin 14 is supported, being equipped with a gap 18 so as to be capable of displacing eccentrically between the outside cylindrical surface of guide shaft 12 and the bore of each bobbin 14 in accordance with the curretn diameter of the wire coil. This winding dia. R on bobbin 14 is held constant at all times by a plurality of driving rollers 20 driven by a motor.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a multi-strip method in which, for example, a plurality of strips formed by dividing one strip inward using a slitter are wound on one winder. This relates to improvements to winders.

If the original strip has a plate crown, the strip formed by dividing one strip in the Ij1 direction with a slitter will become the strip formed by dividing it into one when it is wound on a multi-strip winder. Since the plate thickness of the nine strips is not constant, there is a difference in the winding diameter, and if each winding core of the winding machine around which each strip is wound is rotating at the same speed, a difference will occur in the take-up speed of the nine strips. On the other hand, since the original strip material before being divided into five parts is fed at a constant speed, the thicker strip material is wound up in a taut state, and the thinner strip material becomes slack before being wound up. Therefore, when winding up a thin long strip, the length of the slack becomes very long, causing problems in winding.

On the other hand, in such a case, it is possible to prevent the occurrence of sag by separately installing nine winding drums for the number of divided strips and winding them at independent speeds. In this case, the floor space becomes large, which increases the equipment cost, and the divided strips are passed through the machine separately, which has the disadvantage of lowering work efficiency. Furthermore, the generation of slack can be prevented by allowing each winding core attached to a common winding shaft to slip in the direction of rotation, but this slip amount is minute and therefore undesirable. The drawback is that it tends to become unstable and is difficult to control.

In order to avoid these drawbacks, the present inventor previously proposed a method for improving the outer circumferential surface of the winding shaft and the inner surface of the winding core of a multi-thread winding machine in which a plurality of winding cores are attached to a common winding shaft. A gap is provided between the circumferential surface so that the winding core is eccentric, and 1. We proposed a multi-strip winding machine equipped with rolls for pressing the strip material wound around the winding core and pushing the winding core toward the center of the winding shaft (Japanese Patent Application No. 59-13).
No. 403). However, in this multi-strip winding machine, the strips wound around each winding core are pressed into contact with the phase η, and the strips are wound while mutually slipping through a torque transmission plate provided between them. Therefore, it is necessary to increase the thickness of the torque transmission plate to increase its strength and wear resistance, and a means to press the strip from the side is required, which overall reduces the I-
11 dimension becomes larger, and therefore, it is necessary to introduce the strip into the winder while spreading it out in the 111 direction after it is completely unwound from the slitter. This causes elongation strain on the side edges of the strip, causing the strip to bend or cause damage to the side edge. There have been disadvantages in that cracks are likely to occur and the drive is unstable (objectives of the invention).The object of the present invention is to reduce the width of the machine, so that the strips fed from the slitter can be moved in the width direction. To provide a multi-strip winder capable of winding without unrolling.

(Embodiment) An embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 and 2 show a multi-strip winder 10 of the present invention, and this multi-strip winder 10 has a common structure. It consists of a plurality of winding cores 14 supported by a guide shaft 12, and a sliding plate 16 having a small friction coefficient, such as Teflon, is arranged between the winding cores 14 that match each other. The strips l formed by dividing one strip in the width direction with a slitter are wound around these winding cores 14, respectively.

The sliding plate 16 allows the striped one-phase cars wound around the winding core 14 to come into sliding contact.

Each winding core 14 is connected to a guide shaft 12, particularly as shown in FIG.
The core 14 is supported by the guide shaft 12 with a gap 18 provided between the outer peripheral surface of the core 14 and the inner peripheral surface of each winding core 14 so as to be eccentric to the diameter of the strip coil.

As shown in FIG. 2, the plurality of drive rollers 20 are supported so as to be movable up and down, and these drive rollers 20 are driven by a drive motor 24 via a chain φ sprocket mechanism 22.

In this way, the winding diameter R of each winding core 14 is always kept constant by the drive roller 20, and on the other hand, the winding speed is determined by the product of the winding diameter and the angular velocity of the drive roller 20, regardless of the plate thickness. Since the winding diameter and the angular velocity of the drive roller 20 are constant for all the strips 1, no slack occurs. still.

If there is a gap 18 between the guide shaft 12 and the winding core 14, the nine-winding core 14 will slip not only in the radial direction but also in the rotational direction, but the slip rate in the rotational direction is naturally stabilized by the winding tension. Since the winding speed is adjusted, both slip flaps have a synergistic effect and the winding speed can be kept constant.

(Effects of the Invention) According to the present invention, as described above, even when strips formed by dividing a strip having a plate crown are wound at the same time, no sagging occurs, and especially when the strips are wound around each core. The space between the strips is so that they can slide against each other with sliding plates, so they have the same strength and thickness as conventional ones.) Since there is no need for a torque transmission plate, the strips fed from the slitter can There is no need to widen the strip in the width direction, and therefore, there is a practical advantage that a high-quality strip coil can be obtained without causing distortion in the strip.

[Brief explanation of the drawing]

1 and 2 are a cross-sectional view and a side view of a multi-filament winder according to the present invention. 1-----Single strip material, 2-----Coil, 10-111 multi-strip winding machine, 12-----Guide shaft, 14-----
One roll core, l 8---one gap, 20---m-drive roller. 11/II! 1t 1112 figure

Claims (1)

[Claims] (1) A plurality of winding cores are supported on a common guide shaft with gaps provided so that the winding cores can be eccentric, and a sliding plate is provided between the strips wound around the winding cores. A multi-strip winding machine comprising: a plurality of drive rollers that engage with the outer circumferential surface of the strip wound around the winding core to rotationally drive the strip.