JP5619983B2 - Spool support - Google Patents

Description

  The present invention relates to a spool support, and more particularly, it can stabilize the unwinding wire or the cord tension by optimizing the support of the spool according to the constant pressure and the type of the spool, and shortening the spool setting time. The present invention relates to a spool support that enables the above.

  Conventionally, when a cord is twisted by a twisting machine, or when a twisted cord is transferred to the next step, many various spools are used. For example, when winding a plated coated steel wire around a spool, and then unwinding it and performing a wire connection operation in the calendar process in the next process, the use of a plurality of spools is necessary when manufacturing tire belts and conveyor belts. It is essential.

  In the case of twisting the cord with a twisting machine or in the calendering process, stabilizing the strands of the twisting opening and the tension of the twisting cord is the most important issue in terms of product quality. Therefore, it is important to stabilize the rotational resistance of the unwinding spool. Furthermore, by stabilizing the rotational resistance of the unwinding spool at the lowest possible value, it is possible to secure an adjustment allowance for other tension control devices. Thus, it becomes possible to stabilize the tension of the strands and the stranded cord.

  For example, in Patent Document 1, it is proposed to use a constant tension device under predetermined conditions as an improvement means for controlling a variation in tension applied to each steel wire and winding it around a spool with the same winding length. Yes.

JP 2002-309492 A (claims, etc.)

  In the screw-type spool support that is widely used in general, the spool support force is determined by the screwing amount of the taper shaft. There is a problem that the spool falls off. On the other hand, when the spool supporting force is strong, the lateral load from the tapered shaft at both ends to the bearing increases, and the rotational resistance of the spool increases. For this reason, the unwinding outer diameter is different between the spool full ball and the case close to the empty ball, and therefore the unwinding tension fluctuation range becomes large when the rotation resistance is large. In addition, it is economically disadvantageous to provide a constant tension device as described in Patent Document 1 in terms of equipment.

  Therefore, in the screw-type spool support, in order to reduce rotation resistance and facilitate adjustment of other tension control devices, it is desirable to make the spool support force as weak as possible without causing the spool to drop off. However, in reality, the screwing amount of the taper shaft directly becomes the spool supporting force, so that adjustment is difficult.

  Therefore, it is necessary to carefully set the spool on the support, and it takes a long time, and fine adjustment of the spool support force requires the skill of the operator, so depending on the skill of the operator There was a problem that it was very difficult.

  Accordingly, an object of the present invention is to solve the above-mentioned problems and to stabilize the unwinding strand or the tension of the cord by optimizing the support force according to the constant pressure support of the spool and the type of the spool. An object of the present invention is to provide a spool support that can shorten the time.

  As a result of diligent studies to solve the above problems, the present inventors have found that the above-mentioned object can be achieved by making the spool support a specific structure using an elastic action, and the present invention has been completed. It was.

That is, the spool support of the present invention is a spool support that pivotally supports the spool shaft from both ends thereof.
A screw base incorporated in the column; a taper shaft base pivotally supported on the inner surface of the cylindrical recess of the screw base; a taper shaft held in the taper shaft base and having a tip formed in a taper shape; With
The screw base is manually formed so as to be movable in the spool axis direction with respect to the support column. At least one end of the spool shaft, the taper shaft is elasticized by a spring built in the taper shaft base. A spool support that is mounted and elastically pressed in the spool axial direction to pivotally support the spool;
In the state where the spool is pivotally supported, the flange of the convex end formed at the bottom of the tapered shaft and the tapered shaft base can come into contact with each other by the movement of the screw base. It is.

  In the spool support tool of the present invention, it is preferable that the spool is pivotally supported by the pair of tapered shafts. Further, it is preferable that the tapered shaft is pivotally supported with respect to the support via a ball bearing.

  According to the present invention, by configuring the spool support to have the above-described configuration, it is possible to optimize the support of the spool according to the constant pressure and to optimize the support force according to the type of the spool, that is, to secure the lowest possible support force. The tension of the wire or cord can be stabilized. As a result, it is possible to reduce the time for manual spool setting work.

It is a side view of the spool support tool of one suitable example of the present invention. It is sectional drawing which shows the taper shaft support structure of one suitable example of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail.
FIG. 1 is a side view of a spool support 10 of the present invention. When the spool support 10 of the present invention pivotally supports the spool shaft of the spool A from both ends thereof, the pair of tapered shafts 1 whose tip portions are tapered at at least one end of the spool shaft are elastically provided. Preferably, it is pressed in the spool axis direction by the action of a spring.

  In conventional screw-type taper shafts, since the screwing amount directly becomes the spool support force, it was difficult to adjust the spool support force to a constant pressure, but in the present invention, the spool support force is adjusted by the elastic force. By adopting such a structure, the pushing amount of the taper shaft 1 is attenuated and becomes a spool supporting force, so that the constant pressure support adjustment of the spool becomes easy. Further, since the spool supporting force can be obtained according to the elastic force, the optimum spool supporting force can be adjusted by selecting, for example, a spring according to the type of the spool. As a result, it is possible to stabilize the unwinding strand or the tension of the cord, and the quality of the product is stabilized.

  In addition, it is preferable to use a spring because the spool supporting force can be expressed by a distance. Accordingly, the setting standard for the spool support force is clarified by the alternative measure of distance, and a constant spool support force can be controlled regardless of the level of skill of the operator. As a result, it is possible to easily improve workability and finely adjust the spool support force.

  The taper shaft 1 is preferably pivotally supported with respect to the support column 2 via a ball bearing. As a result, the tapered shaft 1 itself rotates well with the rotation of the spool A, so that the unwinding strand or the tension of the cord can be further stabilized by reducing the rotational resistance.

  FIG. 2 shows a preferred structure in which the taper shaft 1 is pivotally supported with respect to the column 2 via ball bearings. In FIG. 2, a taper shaft base 5 is pivotally supported via a ball bearing 4 on the inner surface of a cylindrical recess of a screw base 3 incorporated in a support 2. A spring 6 is built in the tapered shaft base 5, and this spring 6 elastically presses the flange 7 at the end of the convex portion formed at the bottom of the tapered shaft 1 in the axial direction of the spool A. When the spool A is not present, the flange 7 is elastically brought into contact with the engaging portion 8 formed on the tapered shaft base 5 by the action of the spring 6. When the spool A is mounted on the spool support 10, the screw base 3 is moved left and right by a screwing action of manually rotating the screw base 3.

  The spool support of the present invention can be applied to a spool that requires constant tension unwinding, including a twisting machine, and in particular, a steel cord twisting machine used for tires and the like, and a calendar process. It can apply suitably for the line work in.

DESCRIPTION OF SYMBOLS 1 Tapered shaft 2 Support | pillar 3 Screwed base 4 Ball bearing 5 Tapered shaft base 6 Spring 7 Flange 8 Locking part 10 Spool support A A spool

Claims (3)

In the spool support that pivotally supports the spool shaft from both ends thereof,
A screw base incorporated in the column; a taper shaft base pivotally supported on the inner surface of the cylindrical recess of the screw base; a taper shaft held in the taper shaft base and having a tip formed in a taper shape; With
The screw base is manually formed so as to be movable in the spool axis direction with respect to the support column. At least one end of the spool shaft, the taper shaft is elasticized by a spring built in the taper shaft base. A spool support that is mounted and elastically pressed in the spool axial direction to pivotally support the spool;
In the state where the spool is pivotally supported, the flange of the convex end formed at the bottom of the tapered shaft and the tapered shaft base can be brought into contact with each other by the movement of the screw base. Support tool. Spool support device as in Claim 1, wherein the spool is pivotally supported by a pair of the tapered shaft. The spool support according to claim 1 or 2, wherein the tapered shaft is pivotally supported with respect to a support via a ball bearing.

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