JPS5918132B2 - Wire rod scale peeling method and device using tensile force - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of continuously peeling off scale, such as black scale, from a wire rod by applying a cyclically varying tensile force to a predetermined section of the wire rod during the wire rod feeding process. This invention relates to a method for removing scale from wire rods using tensile force.

Conventionally, methods for removing scale from wire rods include pickling using hydrochloric acid or sulfuric acid, a so-called bending method in which the wire rod is bent by passing it between a plurality of vertically displaced rollers, or There are methods such as shot blasting, in which steel balls, glass beads, etc. are emitted onto the outer periphery of the wire, or methods that use a combination of these methods.
The reality is that it is difficult to remove scale sufficiently using other methods.

The present invention aims to provide an efficient scale removal method that eliminates the drawbacks of conventional scale removal methods.

The present invention will be explained according to the embodiments shown in FIGS. 1 to 4C.

In FIG. 1, 1 indicates a payoff stand.

The wire rod W from the payoff stand 1 is fed in the direction of the arrow by the feed roller 2 while maintaining a predetermined tension state.
It is wound up by a winding machine 8.

In front of the feed roller 2 in the feed direction is a rotating body 3 configured to feed the wire in a state where the wire is wound one or more turns around a predetermined peripheral surface of the wire winding section. A rotating mechanism 5 is disposed in front, and a rotating body 7 having the same configuration as the rotating body 3 is disposed in front of the rotating mechanism 5 in the feeding direction.

As the rotating body 3.7, for example, a known cab stern as shown in FIG. 1 can be used.

The cab stern 3 includes a wire rod winding section 31 having a tapered outer peripheral surface and a wire rod guide 32 provided at a position facing a predetermined outer peripheral surface of the winding section 31.

The take-up part 31 self-rotates in accordance with the rotation of a rotating shaft 33 pivotally connected thereto.

The cab stern 7 also has exactly the same configuration as the cab stern 3.

As shown in FIGS. 1 and 2, the rotation mechanism 5 is composed of an outer gear 51, an inner gear 52, and a rotation guide 53 that includes a through hole formed at a predetermined position around the outer gear 51.

The outer circumference of the inner gear 52 and the inner circumference of the outer gear 51 mesh with each other, and as the outer gear 51 rotates by rotating one of them in a predetermined direction, the rotation guide 53 rotates about C.

The centers C of the gears 51 and 52 are eccentric from the wire feeding direction line.

In such a configuration, in order to feed the wire W at a predetermined speed by the feed roller 2, the rotating body 3, the rotating mechanism 5, and the rotating body 7, each is set to rotate at a predetermined rotational speed.

The wire from the payoff stand 1 is passed through the feed roller 2 and wound one or more turns around the tapered wire winding part 31 of the rotating body 3 by the wire guide 32, and then is wound as the rotating body 3 rotates by itself. , and sent to the rotation mechanism 5.

The wire W passes through the rotating guide 53, passes through the wire guide 72, is wound one or more turns around the tapered wire winding portion 71 of the rotating body 7, and is then wound up as the rotating body 7 rotates by itself. It is wound up by machine 8.

In the wire feeding process, the rotation guide 53 rotates about C in a plane perpendicular to the wire feeding direction due to the rotation of the outer gear 51 or the inner gear 52 of the rotation mechanism 5 in a predetermined direction.

As a result, a tensile force that cyclically changes depending on the position of the rotating guide 53 with respect to the wire feeding direction line is applied to the wire between the rotating bodies 3 and 7.

As mentioned above, in the wire rod feeding process, the wire rod W is
The wire guides 32 and 72 respectively rotate the rotating body 3°7.
Since the rotating guide 53 is rotated, the rotating guide 53 rotates.
The rotating mechanism 5 applies a cyclically varying tensile force to the wire between the rotating body 3 and the rotating mechanism 5, and between the rotating mechanism 5 and the rotating body 7, so that the scale of the wire is effectively peeled off.

Although the fine scale has been peeled off, the fine scale remaining on the surface of the wire W is removed by a fine scale removing device 4 consisting of a rotating brush or a known gas or liquid injector during the wire feeding process.

In this way, the wire rod is wound up by the winder 8 after the scale has been sufficiently removed.

A second embodiment of the invention is shown in FIG.

In this embodiment, a rotating body 3 having the same configuration as the rotating body 3 in FIG. 1 is arranged between a plurality of adjacent feed rollers 2 and a rotating body 7 having the same configuration as the rotating body 7 in FIG. As shown in Fig. 4a and b, the cylinder mechanisms s, s
By continuously displacing a predetermined amount in the wire feeding direction or perpendicular to the wire feeding direction using a reciprocating mechanism such as This is an example of applying a tensile force.

Further, as shown in FIG. 4C, a similar tensile force can be obtained by a continuous circular motion resulting from a composite motion of the wire feeding direction and a direction perpendicular to the wire feeding direction.

As seen in the above embodiments, according to the present invention, scale removal from wire rods can be effectively carried out.

Some of the results of experiments conducted by the inventor regarding the present invention are as follows.

(1) Test wire diameter: 10 mm Steel type: 533C (2) A tensile force of up to 10 tons was applied to the wire rod according to the method of the present invention, and the peeling status of the scale was investigated with respect to the total amount of strain (elastic strain and plastic strain).

(3) Results As is clear from the above experimental results, according to the present invention,
Compared to conventional mechanical peeling methods, it is possible to remove scale extremely efficiently, and unlike pickling methods, it is possible to remove scale without causing any pollution problems.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the overall configuration of an embodiment of the present invention, and FIG.
The figure is a side view showing details of the rotation mechanism 5 in FIG. 1, and FIG. 3 is a front view showing the overall configuration of the second embodiment of the present invention.
Fig. 4a is a front view showing an example of a mechanism for continuously reciprocating the rotating body 3 in Fig. 3 in the wire rod feeding direction; FIG. 4C is a front view showing an example of a mechanism for vertically reciprocating the rotating body 3 in FIG. 3 in a circular motion in a vertical plane parallel to the wire feeding direction. FIG. W...Wire rod, 3,7...Rotating body, 5.
...Rotation mechanism, 53...Rotation guide.

Claims (1)

[Claims] 1. In the process of feeding a wire with a predetermined tension applied to it, a tensile force that is cyclically varied is applied to a predetermined section of the wire to peel off the scale of the wire. The method used to remove scale from wire rods.