JPS5843163B2 - Wire rod scale peeling device using tensile force and twisting force - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention continuously peels off scale, such as black scale, from a wire by simultaneously applying varying tensile force and twisting force to a predetermined section of the wire during the wire feeding process. This invention relates to a wire rod scale removal device that utilizes tensile force and twisting 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 is a shot blast method in which steel balls, glass beads, etc. are emitted onto the outer periphery of the wire, or a method that uses a combination of these methods. The reality is that it is difficult to remove scale sufficiently using methods of 2 or less.

The present invention aims to provide a scale removal device suitable for moving vehicles, which eliminates the drawbacks of such conventional scale removal methods.

The present invention will be explained according to the embodiment shown in FIGS. 1 and 2.

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 send the wire in a state where the wire is wound one or more turns on a predetermined surface of the wire winding section. A cab stern 5 is housed in a swing guide 6, and a rotating body 7 having the same structure as the rotating body 3 is mounted in front of the cab stern 5 in the feeding direction.

As the rotating bodies 3 and 7, for example, a known cab stern as shown in FIGS. 1 and 2a can be used.

The cab stern 3 includes a wire rod winding section 31 having a tapered outer circumferential surface and a wire rod guide 521 provided at a position facing a predetermined outer circumferential surface of the winding section 31.

The winding section 31 rotates as a rotating shaft 33 pivotally attached thereto rotates.

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

The cab stern 5 also has the same configuration as the cab stern 3, but the cab stern 5 has a swing guide 6 fixed at a certain inclination angle θ with respect to the wire feeding direction.
．． It is mounted in a swinging inner cylinder 62 that can swing along the guide grooves 61 of 6 of 6' in a plane along the above-mentioned inclination angle.

The mechanical relationship among the cab stern 5, the swing guide 6, 6', and the swing inner cylinder 62 is set as follows.

Inside the swinging inner cylinder 62 is a wire winding part 50 of the cab stern 5.
is arranged, and a rotating shaft is fixed along the central vertical line of the wire rod winding section 50, and the rotating shaft is fixed along the central vertical line of the wire rod winding section 50.
They protrude from the upper and lower surfaces as shown at 51 and 52.

The shaft 52 is supported by a bearing 53' on the opposing surface of the swinging inner cylinder 62, and the shaft 51 passes through the opposing surface of the swinging inner cylinder 62 and is connected to the drive source of the motor M2 via the bearing 53. has been done.

Therefore, by driving the motor M2, its rotational force is transmitted to the shaft 51, and the wire winding section 50 is rotated at a predetermined speed.

The wire rod guide hole 522 is provided to protrude from a fixing frame 523 fixed to the swinging inner cylinder 62, and the wire rod W fed from the cab stern 3 in FIG. guide you so that you can

Rollers 54, 541, 542, which are held by a plurality of supporting members, are provided around the end surface of the swinging inner cylinder 62 on three sides of the cab stern, and the swinging inner cylinder 62 is moved into the swinging guide 6.6'. When the rollers 54, 541 and 542 are placed in the position shown in FIG. A large diameter end portion 63 formed at the other end of the swinging inner cylinder 62 protrudes from the rear end surface of the swinging guide 6', The teeth 64 are set to mesh with a pinion 65 connected to the drive source of the motor M2.

Therefore, by continuously driving the motor M1 in one direction and then in the opposite direction, the swinging inner cylinder 62 is rotated in the a4-+b force direction via the pinion 65, and thereby the wire winding section 50 is also rotated by the a+-+b force. direction is rotated.

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 cab stern 5, and the rotating body 7, the cab stern is forced to rotate at a predetermined rotation speed, and 5 is a predetermined angle 31
It is set to be forcibly oscillated between 96 and 96.

The wire W from the payoff stand 1 is passed through the feed roller 2 and wound one or more turns around the tapered wire winding portion 31 of the rotating body 3 by the wire guide 521, and then, as the rotating body 3 rotates, Sent to Cab Stern 5.

The wire W is guided by the wire guide 522 and is wound one or more turns around the tapered wire winding section 50 of the cab stern 5, and then wound once or more around the tapered wire winding section 70 of the rotating body 7. It is wound more than one turn, and is wound up by a winding machine 8 as the rotating body 7 rotates.

In the above-mentioned wire rod feeding process, the cab stern 5 is guided by a groove 61 provided along the circumference of the swing guide 6, and is moved at a predetermined angle along an inclined surface that is inclined by a predetermined angle θ with respect to the wire rod feeding direction. It oscillates between 3196 and 3196.

The predetermined inclination angle θ of the swinging guide 6 with respect to the wire feeding direction is set to an angle sufficient to apply a sufficient tensile force to the wire with respect to the vertical plane, and the swinging guide 6 swings along the guide 61 of the swinging guide 6. The predetermined swing angle a+-+b of the cab stern is set to an angle sufficient to apply a sufficient twisting force to the wire rod.

More specifically, the predetermined inclination angle θ and the predetermined swing angle a←→b are determined by the tensile force and torsional force in relation to the distance between the cab sterns 3 and 5 and 5 and 7 and the thickness of the wire rod. The total amount of strain is set so that the scale peeling effect is sufficiently exerted.

That is, the predetermined tilt angle θ and the predetermined swing angle a+−+b
is set to large if the wire is thin, small if it is thick,
Further, if the distance between the cab sterns 3 and 5 and between 5 and 7 is short, it is set to small, and if it is long, it is set to dog.

As a result, varying tensile force and torsional force are simultaneously applied to the wire between the rotating bodies 3 and 7 via the cab stern, making it possible to effectively remove scale.

That is, as mentioned above, in the wire rod feeding process, the wire rod W
The wire guides 521 and 522 are configured to feed one or more turns around the predetermined outer peripheral surfaces of the rotating body 3, the cab stern 5, and the rotating body 7, respectively, so that the cab stern 5 can be oscillated. If the rotating body 3
and the cab stern 5, and the wire between the cab stern 5 and the rotating body 7 are in the same state as if they were fixed by the rotating body 3, the cab stern 5, and the rotating body 7, respectively, without shifting in the wire feeding direction, Varying tensile and torsional forces are applied simultaneously to effectively descale the wire.

The fine scales that have peeled off but remain on the surface of the wire W are 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.

After the scale has been sufficiently removed from the wire rod, it is wound up by the winder 8.

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

Under the above conditions, a movable wire guide is temporarily installed at a position close to the cab stern 3 between the cab stern 3 and the wire guide 522 in FIG.
An experiment was conducted by changing the tensile force and twisting force applied to the wire by changing the distance between the movable wire guide and the wire guide 522 instead of changing the .

FIG. 3 shows the relationship between the change in the distance between the temporary wire guide and the wire guide 522 and the change in the amount of strain in that case.

In Fig. 3, the vertical axis shows the amount of strain (%), the horizontal axis shows the distance (-) between the temporary guide and the wire guide 522, γ is the amount of torsional strain, ε is the amount of tensile strain, and γ + ε is the total amount of strain. And so.

The results were as shown in the table below. As is clear from the above experimental results, according to the present invention, it is possible to remove scale extremely efficiently compared to the conventional mechanical peeling method, and unlike the pickling method, there is no problem of pollution generation. It is possible to remove scale without any problem.

[Brief explanation of drawings]

FIG. 1 is a front view showing the overall configuration of an embodiment of the present invention, FIG. 2a is a plan view showing details of the rotating body 3 in FIG. 1, and FIG. 5 and the swing guide 6, FIG. 2C is a partial sectional view showing the relationship between the guide groove 61 and the roller 54 in FIG. 2, and FIG. It is a line diagram for detailed explanation. W...Wire rod, 3,7...Rotating body, 5.
...Cab stern, 6...Swing guide.

Claims (1)

[Claims] 1. A cab stern that is placed at a certain angle of inclination with respect to the feeding direction of the wire rod in a feed path that feeds the wire rod under a predetermined tension, and
Two rotating bodies capable of regulating the sliding of the wire in the moving direction are arranged at a predetermined interval, and the cab stern is housed in a swinging guide and swings and rotates in a plane along the inclination angle. A wire rod scale removal device that utilizes tensile force and twisting force and is configured to be able to be rotated forcibly.