JP7321826B2 - DESCALING APPARATUS AND DESCALING METHOD - Google Patents

Description

The present invention relates to a wire descaling device and a descaling method.

A descaling device is known that bends a wire and causes the scale on the surface of the wire to crack due to the tension and compression of the surface of the wire due to the bending, thereby peeling off the scale from the wire. In the descaling device described in Patent Literature 1, a plurality of rollers are arranged in a zigzag pattern along the feeding path of the wire, and the wire meanders between the rollers and is thereby bent. This descaling device has two substrates each having a plurality of rollers arranged in a zigzag pattern, one substrate being inclined at an angle of 90° with respect to the other substrate.

JP-A-62-38025

The wire rod is wound in a coil shape, spirally let out from the coil body, and introduced between the rollers. Here, the winding direction of the wire rod in the coil may differ depending on the manufacturer of the wire rod, and the wire rod running between the rollers may become entangled depending on the winding direction of the wire rod.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a descaling device and a descaling method capable of suppressing entanglement of a wire regardless of the winding direction of the wire.

A descaling device according to one aspect of the present invention includes a payoff stand that spirally feeds the wire rod from a coil wound with the wire rod, and descaling that causes the wire rod fed from the payoff stand to travel along a reference line. wherein the descaling unit pushes the wire rod onto the first plane including the reference line by pressing a plurality of first rollers aligned along the reference line against the wire rod. and a plurality of second units installed downstream of the first unit and arranged along the reference line on a second plane that includes the reference line and intersects the first plane. and a second unit that causes the wire to meander on the second plane by pressing a roller against the wire, wherein the first roller arranged on the most downstream side of the first rollers is the first roller. The meandering of the wire on the plane can be disabled, or the second roller arranged on the most upstream side of the second rollers is disabled from the meandering of the wire on the second plane. can be converted.

Further, the descaling method according to one aspect of the present invention includes spirally feeding the wire rod from a coil body formed by winding the wire rod, causing the wire rod fed from the coil body to travel along a reference line, and The wire is meandered on the first plane by pressing against the wire a plurality of first rollers arranged along the reference line on the first plane including the line, and then A plurality of second rollers arranged along the reference line on a second plane intersecting the first plane are pressed against the wire to cause the wire to meander on the second plane, depending on the winding direction of the wire. the first roller arranged on the most downstream side among the first rollers is disabled against meandering of the wire on the first plane, or the first roller arranged on the most upstream side among the second rollers A second roller is disabled against meandering of the wire on the second plane.

According to the present invention, it is possible to provide a descaling device and a descaling method that can suppress entanglement of a wire regardless of the winding direction of the wire.

1 is a schematic diagram of an example of a descaling device for describing an embodiment of the present invention; FIG. 4 is a plan view of the descaling section; FIG. It is a schematic diagram which shows the example of arrangement|positioning of the roller in a 1st unit. FIG. 5 is a schematic diagram showing an example of arrangement of rollers in a second unit; It is a schematic diagram which shows the positional relationship of a 1st unit and a 2nd unit. FIG. 4 is a schematic diagram showing an example of twisting that occurs in a wire that is helically paid out in a payoff stand. FIG. 4 is a schematic diagram showing an example of twist applied to the wire in the descaling section; FIG. 10 is a schematic diagram showing an example of disabling the most upstream roller of the second unit; FIG. 11 is a schematic diagram showing another example of disabling the rollers on the most upstream side of the second unit; FIG. 10 is a schematic diagram showing an example of twist applied to the wire in the descaling section when the most upstream roller of the second unit is disabled;

FIG. 1 shows an example of a descaling device for explaining embodiments of the present invention.

The descaling device 1 bends the wire rod W, causes the scale on the surface of the wire rod W to crack due to the tension and compression of the wire rod surface due to the bending, and thereby peels off the scale from the wire rod W. A wire W is wound in a coil shape, and a descaling device 1 includes a payoff stand 2 for feeding the wire W from a coil body C around which the wire W is wound, and a descaling device for bending the wire W fed from the payoff stand 2 . and a scaling unit 3 . In the example shown in FIG. 1, the wire rod W from which the scale has been removed by passing through the descaling section 3 is drawn to a desired outer diameter by a drawing device 4, and then wound again into a coil shape by a winding device 5. .

The payoff stand 2 has a support rod 10 and a movable arm 11 . The support rod 10 is inserted substantially horizontally inside the coil body C, and the coil body C is suspended from the support rod 10 . The movable arm 11 is also inserted through the inside of the coil body C, but is inclined with its tip downward. The movable arm 11 is swingable, and the tip of the movable arm 11 placed on the floor moves up and down as the movable arm 11 swings. The wire rod W is helically paid out from the coil body C by being pulled by the winding device 5 . The wire rod W spirally drawn out is temporarily held by the tip of the movable arm 11, and thereby linearly extended. Then, the linearly extended wire rod W is introduced into the descaling section 3 .

2 to 5 show the descaling unit 3. FIG.

The descaling unit 3 causes the introduced wire rod W to travel along the reference line X. As shown in FIG. The descaling section 3 has a first unit 20 and a second unit 30. When viewed in the running direction of the wire W, the first unit 20 is arranged on the upstream side and the second unit 30 is arranged on the downstream side. It is

As shown in FIG. 3, the first unit 20 has four rollers 21-24 arranged on a first plane P1 including the reference line X. As shown in FIG. The rollers 21 to 24 are arranged along the reference line X on the first plane P1. The rollers 21 to 24 are alternately arranged on one side and the other side with respect to the reference line X in order from the roller 21 positioned furthest upstream, in other words, they are arranged in a zigzag pattern. Note that the number of rollers provided in the first unit 20 is not limited to four.

The positions of the roller 21 positioned most upstream and the roller 24 positioned most downstream on the first plane P1 are fixed. are spaced apart by the outer diameter of the wire rod W or more. On the other hand, the rollers 22 and 23 are supported by a rotating disk 25 parallel to the first plane P1. is rotatable around . When the rotating disk 25 is rotated by the cylinder device 26, the rollers 22 and 23 are displaced integrally on the first plane P1 so that the respective centers of the rollers 22 and 23 approach or separate from the reference line X. .

When the rollers 22 and 23 are displaced so that the centers of the rollers 22 and 23 approach the reference line X, the rollers 21 to 24 are pressed against the wire W. As shown in FIG. The wire W meanders between the rollers 21 to 24 and is thereby bent. As the wire rod W bends, tension and compression act on the surface of the wire rod, and the scale on the surface of the wire rod is peeled off from the wire rod W. The bending angle of the wire rod W in the first unit 20 is adjusted by adjusting the displacement amounts of the rollers 22 and 23 .

As shown in FIG. 4, the second unit 30 has four rollers 31-34 arranged on a second plane P2 including the reference line X. As shown in FIG. The rollers 31 to 34 are arranged along the reference line X on the second plane P2. The rollers 31 to 34 are alternately arranged on one side and the other side with respect to the reference line X in order from the roller 31 positioned most upstream, in other words, they are arranged in a zigzag pattern. Note that the number of rollers provided in the second unit 30 is not limited to four.

The positions of the roller 31 positioned furthest upstream and the roller 34 positioned furthest downstream are fixed on the second plane P2. are spaced apart by the outer diameter of the wire rod W or more. On the other hand, the rollers 32 and 33 are supported by a rotating disk 35 parallel to the second plane P2. is rotatable around . When the rotating disk 35 is rotated by the cylinder device 36, the rollers 32 and 33 are displaced integrally on the second plane P2 so that the respective centers of the rollers 32 and 33 approach or separate from the reference line X. .

When the rollers 32 and 33 are displaced so that the centers of the rollers 32 and 33 approach the reference line X, the rollers 31 to 34 are pressed against the wire W. As shown in FIG. As a result, the wire W meanders between the rollers 31 to 34 and is thereby bent. As the wire rod W bends, tension and compression act on the surface of the wire rod, and the scale on the surface of the wire rod is peeled off from the wire rod W. The bending angle of the wire rod W in the second unit 30 is adjusted by adjusting the displacement amounts of the rollers 32 and 33 .

Then, as shown in FIG. 5, the first plane P1 on which the rollers 21 to 24 of the first unit 20 are arranged and the second plane P2 on which the rollers 31 to 34 of the second unit 30 are arranged intersect each other. ing. Since the first plane P1 and the second plane P2 intersect, the compression and tension acting on the wire rod surface are distributed in the circumferential direction of the wire rod W, and the scale on the wire rod surface is evenly peeled off. Preferably, the intersection angle between the first plane P1 and the second plane P2 is 90°.

FIG. 6 shows an example of the twist that occurs in the wire rod W spirally paid out on the payoff stand 2 .

Looking at the payoff stand 2 from the descaling section 3, in the coil body C shown in FIG. 6, the wire W is wound clockwise. In this case, when the wire rod W helically paid out at the payoff stand 2 is linearly extended, the wire rod W is extended in a clockwise twisted state. Conversely, when the wire W is wound counterclockwise, the wire W is twisted counterclockwise and extended.

FIG. 7 shows an example of the twist applied to the wire rod W by the descaling unit 3. FIG.

The wire rod W is bent on the first plane P1 along the roller 24 located on the most downstream side of the first unit 20, and is bent on the second plane P1 along the roller 31 located on the most upstream side of the second unit 30. Bent over P2. Since the first plane P1 and the second plane P2 intersect, the wire rod W located between the rollers 24 and 31 is twisted. Assuming that the roller 31 is arranged on the first plane P1 and is arranged on the side opposite to the roller 24 with respect to the reference line X, the wire rod W is bent in a substantially Z shape (crank shape). In the example shown in FIG. 7, the wire rod W positioned between the roller 24 and the roller 31 is twisted counterclockwise cc.

Here, in the example shown in FIG. 7, a clockwise twist c is generated in the wire rod W that is spirally drawn out from the payoff stand 2 . A single line L is attached to the surface of the wire rod W for the purpose of visualizing the twist. The counterclockwise twist cc applied to the wire W between the roller 24 and the roller 31 acts to cancel the clockwise twist c that has been generated in the wire W in advance. Therefore, entanglement of the wire W is suppressed. Conversely, when the wire rod W spirally paid out on the payoff stand 2 has a counterclockwise twist cc, the counterclockwise twist cc applied to the wire rod W between the roller 24 and the roller 31 acts to promote the counterclockwise twist cc that has already occurred in the wire rod W. Therefore, entanglement of the wire W may occur. In this case, the descaling device 1 suppresses entanglement of the wire W by disabling one of the rollers 24 and 31 .

8 and 9 show the case where the most upstream roller 31 of the second unit 30 is disabled.

The fact that the roller 31 located on the most upstream side of the second unit 30 is disabled means that the roller 31 is not related to the meandering of the wire W on the second plane P2. In the example shown in FIG. 8, roller 31 is disabled by being removed. By removing the roller 31, the wire W is arranged along the common tangent line T between the roller 24 on the most downstream side of the first unit 20 and the roller 32 positioned next to the roller 31 in the second unit 30. be. Further, as shown in FIG. 9, the roller 31 may be disabled by replacing it with a small-diameter roller 31s. The small-diameter roller 31 s is in contact with the wire rod W arranged along the common tangent line T between the roller 24 and the roller 32 . By bringing the small-diameter roller 31s into contact with the wire W between the roller 24 and the roller 32, the wire W can be prevented from being roughened.

FIG. 10 shows an example of the twist applied to the wire W by the descaling section 3 in which the rollers 31 located on the most upstream side of the second unit 30 are disabled.

The wire rod W is bent on the first plane P1 along the rollers 24 of the first unit 20 and is bent on the second plane P2 along the rollers 32 of the second unit 30 . Since the first plane P1 and the second plane P2 intersect, the wire rod W positioned between the rollers 24 and 32 is twisted. The roller 32 is arranged on the opposite side of the reference line X from the disabled roller 31 . Therefore, a counterclockwise twist cc is applied to the wire rod W located between the roller 24 and the roller 31 when the roller 31 is effective, whereas the roller 31 is ineffective when the roller A clockwise twist c is applied to the wire W positioned between 24 and the roller 32 .

In the case where the twist already occurring in the wire W is the counterclockwise twist cc, the roller 31 is disabled and the wire W positioned between the rollers 24 and 32 is given a clockwise twist c. By doing so, the counterclockwise twist cc that has previously occurred in the wire rod W can be eliminated. Thereby, entanglement of the wire rod W can be suppressed.

Instead of disabling the roller 31 positioned most upstream of the second unit 30, the roller 24 positioned most downstream of the first unit 20 may be disabled. Also in this case, the twist applied to the wire W can be reversed, and the entanglement of the wire W can be suppressed.

As described above, the descaling device disclosed in the present specification includes a payoff stand that spirally feeds the wire from a coil wound with the wire, and a reference line that spreads the wire that is fed from the payoff stand. and a descaling unit that travels along the line, wherein the descaling unit presses a plurality of first rollers arranged along the reference line on a first plane including the reference line against the wire rod. a first unit that causes the wire to meander on the first plane; a second unit that causes the wire to meander on the second plane by pressing a plurality of second rollers aligned along the wire against the wire; One roller can be nullified against the meandering of the wire on the first plane, or the second roller arranged most upstream of the second rollers is the It is possible to invalidate the meandering of the wire.

Further, in the descaling device disclosed in this specification, the first roller, which is arranged on the most downstream side among the first rollers, is the first roller located next to the first roller, which is arranged on the most upstream side among the second rollers. can be replaced with a small-diameter roller that contacts the wire arranged along a common tangent line with the second roller arranged in the second roller, or the second roller arranged on the most upstream side among the second rollers, Among the first rollers, the first roller arranged on the most downstream side can be replaced with a small-diameter roller arranged along a common tangential line of the adjacent second roller and in contact with the wire rod.

Further, in the descaling device disclosed in this specification, the first roller arranged on the most downstream side among the first rollers is detachable, or the first roller arranged on the most upstream side among the second rollers is detachable. The second roller is detachable.

Also, in the descaling device disclosed in this specification, the intersection angle between the first plane and the second plane is 90°.

In addition, the descaling method disclosed in the present specification spirally lets out the wire rod from a coil body in which the wire rod is wound, causes the wire rod that has been let out from the coil body to travel along a reference line, A plurality of first rollers arranged along the reference line on a first plane including the reference line are pressed against the wire to cause the wire to meander on the first plane, and then the wire includes the reference line and A plurality of second rollers aligned along the reference line on a second plane that intersects the first plane are pressed against the wire to cause the wire to meander on the second plane and extend in the winding direction of the wire. Accordingly, the first roller arranged on the most downstream side among the first rollers is disabled against meandering of the wire rod on the first plane, or the first roller arranged on the most upstream side among the second rollers is disabled. The second roller is disabled against meandering of the wire rod on the second plane.

1 Descaling Device 2 Payoff Stand 3 Descaling Part 4 Pulling Device 5 Winding Device 10 Support Rod 11 Movable Arm 20 First Unit 21-24 Roller 25 Turntable 26 Cylinder Device 30 Second Unit 31-34 Roller 31s Small Diameter Roller 35 Rotary disk 36 Cylinder device C Coil body P1 First plane P2 Second plane T Tangent line W Wire rod X Reference line

Claims (5)

a pay-off stand for spirally unwinding the wire rod from a coil body formed by winding the wire rod;
a descaling unit that causes the wire drawn out from the payoff stand to travel along a reference line;
with
The descaling unit
a first unit that causes the wire to meander on the first plane including the reference line by pressing a plurality of first rollers aligned along the reference line against the wire;
pressing a plurality of second rollers, which are installed downstream of the first unit and arranged along the reference line on a second plane that includes the reference line and intersects the first plane, against the wire rod; a second unit that meanders the wire on the second plane by
has
The plurality of first rollers are arranged alternately on one side and the other side with respect to the reference line, in order from the first roller positioned most upstream,
The plurality of second rollers are arranged alternately on one side and the other side with respect to the reference line, in order from the second roller positioned most upstream,
The first roller arranged on the most downstream side of the first rollers can be disabled against meandering of the wire on the first plane,
or
The second roller arranged on the most upstream side of the second rollers can be disabled against meandering of the wire on the second plane ,
A plurality of first rollers between the first roller positioned most upstream and the first roller positioned most downstream are supported by a rotating disc parallel to the first plane, and the rotating disc comprises: It is rotatable around the intersection of a line segment connecting the centers of each of the plurality of first rollers between the above and the reference line,
A plurality of second rollers between the most upstream second roller and the most downstream second roller are supported by a rotating disc parallel to the second plane, and the rotating disc is: It is rotatable around the intersection of the line segment connecting the centers of each of the plurality of second rollers between the above and the reference line.
Descaling device. The descaling device of claim 1, comprising:
The first roller arranged on the most downstream side among the first rollers is along a common tangential line between the adjacent first roller and the second roller arranged on the most upstream side among the second rollers. can be replaced with a small-diameter roller in contact with the wire arranged in the
or
The second roller arranged most upstream among the second rollers is along a common tangential line between the first roller arranged most downstream among the first rollers and the adjacent second roller. A descaling device that can be replaced with a small diameter roller that contacts the wire arranged in a row. The descaling device of claim 1, comprising:
The first roller arranged on the most downstream side of the first rollers is detachable,
or
The descaling device, wherein the second roller arranged on the most upstream side of the second rollers is detachable. A descaling device according to any one of claims 1 to 3,
A descaling device, wherein the intersection angle between the first plane and the second plane is 90°. spirally unwinding the wire rod from a coil body formed by winding the wire rod;
causing the wire drawn out from the coil body to travel along a reference line;
A plurality of first rollers aligned along the reference line on the first plane including the reference line are pressed against the wire to cause the wire to meander on the first plane, and then the wire includes the reference line. and causing the wire to meander on the second plane by pressing a plurality of second rollers aligned along the reference line against the wire on a second plane intersecting the first plane,
The plurality of first rollers are arranged alternately on one side and the other side with respect to the reference line, in order from the first roller positioned most upstream,
The plurality of second rollers are arranged alternately on one side and the other side with respect to the reference line, in order from the second roller positioned most upstream,
According to the winding direction of the wire, the first roller arranged on the most downstream side among the first rollers is disabled against meandering of the wire on the first plane, or one of the second rollers Disabling the second roller arranged on the most upstream side against meandering of the wire rod on the second plane ;
A plurality of first rollers between the first roller positioned most upstream and the first roller positioned most downstream are supported by a rotating disk parallel to the first plane, and the rotating disk comprises: rotatable around the intersection of a line segment connecting the centers of each of the plurality of first rollers between the first rollers and the reference line;
A plurality of second rollers between the most upstream second roller and the most downstream second roller are supported by a rotating disk parallel to the second plane, and the rotating disk is: It is rotatable around the intersection of a line segment connecting the centers of each of the plurality of second rollers between the above and the reference line.
Descaling method.

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