WO2009128380A1

WO2009128380A1 - Carousel reel facility

Info

Publication number: WO2009128380A1
Application number: PCT/JP2009/057231
Authority: WO
Inventors: 達也山内; 良久古園; 久義石井; 雅之熊本
Original assignee: 三菱日立製鉄機械株式会社
Priority date: 2008-04-17
Filing date: 2009-04-08
Publication date: 2009-10-22
Also published as: EP2277640A4; BRPI0910731A2; CN102006946B; JP5313542B2; EP2277640B1; JP2009255129A; EP2277640A1; CN102006946A

Abstract

Provided is a carousel reel facility wherein the tail of a strip can be guided stably to a take-up drum even if the strip carried at high speed is cut off. Distal end of a guide frame (31) is made to abut removably against a snubber roller (25) which presses the outer circumferential surface of the strip (S) taken up at a take-up completion position so as to follow up the coil diameter of the strip, the guide frame (31) is rocked so as to be interlocked with the coil diameter follow-up operation of the snubber roller (25), and the rod (37a) of an elevating/lowering cylinder (37) is kept in an elongated state when the snubber roller (25) performs a follow-up operation according to the enlargement of the coil diameter so that a link member (35), a link bar (36) and the elevating/lowering cylinder (37) themselves constitute a link mechanism.

Description

Carousel reel equipment

The present invention relates to a carousel reel facility capable of continuously winding up a transported strip by revolving two self-rotating winding drums by a carousel reel and alternately switching the respective winding positions. About.

Generally, a cold-rolled strip made of mild steel, high-strength steel, or the like is rolled by a single pass plate by continuous tandem rolling for the purpose of high efficiency and high yield. In this continuous tandem rolling, the preceding strip and the trailing strip unwound from the coil of the hot-rolled strip are joined to form a continuous strip, and this strip is continuously fed to the continuous tandem rolling mill. Inter-rolling is performed. Then, the strip is sequentially passed through each rolling stand of the continuous tandem rolling mill and rolled to the target thickness, and then the rolled strip is wound again in a coil shape on the exit side of the continuous tandem rolling mill. The joint between the preceding strip and the succeeding strip is cut while taking.

Therefore, conventionally, a winding facility capable of continuously winding the cut preceding and succeeding strips into a coil shape is provided on the exit side of the continuous tandem rolling mill. In recent years, among winding facilities, mainly from the viewpoint of production efficiency and equipment cost reduction, two winding drums that can rotate are revolved by a carousel reel (hereinafter referred to as a carousel reel facility). Is widely used.

As shown in FIG. 6, in such a carousel reel facility, the first winding drum 22 arranged at the upstream winding start position starts winding the preceding strip Sf, and during the winding, By revolving the roselle reel 21, the first winding drum 22 is moved to the downstream winding completion position, and the second winding drum 23 is moved to the winding start position. The tail ends are cut by the

cutting blades

121a and 121b of the

drum shears

12a and 12b, and the leading end of the trailing strip Sb is taken up by the second winding drum 23. In this way, the rolling operation is continuously performed without stopping by alternately switching the winding positions of the two

winding drums

22 and 23.

On the other hand, conventionally, carousel reel equipment has also been provided on the outlet side of continuous finishing equipment, pickling equipment, etc., and as carousel reel equipment applied to the continuous finishing equipment, for example, Patent Document 1, 2 is disclosed. In this carousel reel equipment, the winding start position of the winding drum that starts winding is set lower than the installation position of the deflector roller that changes the direction of the conveyed strip. That is, the winding start position is set lower than the pass line of the transported strip.

Japanese Patent Publication No. 7-8381 Japanese Examined Patent Publication No. 7-106384

On the other hand, in the carousel reel equipment provided on the outlet side of the continuous tandem rolling mill as described above, as shown in FIG. 6, it is applied to high speed, high tension and high hardness materials. The winding start positions of the

winding drums

22 and 23 that start winding are set to substantially the same height as the installation position of the deflector roller 13. That is, the winding start position is set to substantially the same height as the pass line of the strip S being conveyed. Thereby, even if the conveyance speed is fast, the strip S is wound up without excessively going over the

winding drums

22 and 23 arranged at the winding start position by its own inertial force.

In other words, if it is going to adopt carousel reel equipment applied to continuous finishing equipment etc. on the exit side of the continuous tandem rolling mill in cold rolling, the winding start position is lower than the installation position of the deflector roller, and the strip However, although the strip reaches the winding start position by its own weight, the strip jumps over the winding drum and may not be wound properly.

Further, in the conventional cold-rolling carousel reel equipment as shown in FIG. 6, the tail ends of the strips S (strips Sf and Sb) wound by the

winding drums

22 and 23 arranged at the winding completion position. However, since the tension is released by the cutting of the

drum shears

12a and 12b and the state becomes an unconstrained state, it flutters and comes into contact with peripheral devices, or the strip S itself is bent.

Therefore, in order to solve such a problem, in the conventional carousel reel equipment for cold rolling, it is necessary to set the transport speed of the strip S at the time of cutting to, for example, 250 m / min or less. Moreover, in recent cold rolling, higher speed and higher tension have been achieved, and the structure of the conventional carousel reel equipment for cold rolling has the behavior of the tail of the cut strip S. It has been difficult to properly guide to the

winding drums

22 and 23 that are restrained and arranged at the winding completion position.

Accordingly, the present invention solves the above-described problems, and provides a carousel reel facility that can stably guide the tail end of the strip to the take-up drum even if the strip conveyed at high speed is cut. The purpose is to do.

The carousel reel facility according to the first invention for solving the above-mentioned problems is
Two revolving winding drums arranged symmetrically across the rotation axis are provided on a revolving disc-shaped carousel reel,
The one winding drum arranged on the upstream side starts winding the preceding strip, and the carousel reel is revolved during the winding to move the one winding drum to the downstream side. A carousel reel device in which the other winding drum is moved upstream, the tail end of the preceding strip is cut in this state, and the leading end of the trailing strip is wound up by the other winding drum. There,
Provided at the same height as the winding drum disposed on the upstream side and the inlet side of the carousel reel, guides the strip to be conveyed to the winding drums disposed on the upstream side and the downstream side. A deflector roller to
A pressing means for pressing the outer peripheral surface so as to follow the coil diameter of the strip wound on the winding drum disposed on the downstream side, and suppressing fluttering of the tail end of the cut strip;
The winding drum, which is supported so as to be swingable around the rotation shaft of the deflector roller, and whose tip is linked to the coil diameter following operation of the pressing means, and the tail end of the cut strip is disposed downstream. Guidance means for guiding towards the
Oscillating means for oscillating the guide frame so as not to interfere with the take-up drum that moves due to revolution of the carousel reel;
When the pressing means performs a coil diameter following operation, the swinging means is provided that allows the swinging of the guiding means to be interlocked without operating the swinging means.

The carousel reel facility according to the second invention for solving the above-mentioned problems is
The strip conveying speed at the time of cutting is set to 250 m / min or more.

The carousel reel facility according to the third invention for solving the above-mentioned problems is
The guide means includes a magnet for adsorbing the strip by magnetic force, and a roller protruding from the adsorption surface of the magnet.
When the strip conveyance speed at the time of cutting exceeds 300 m / min, adsorption by the magnet is performed.

The carousel reel equipment according to the present invention can stably guide the tail end of the strip to the take-up drum even when the strip conveyed at high speed is cut. As a result, it is not necessary to reduce the strip conveyance speed during cutting more than necessary, so that productivity and quality can be improved.

It is a schematic structure figure of carousel reel equipment concerning one example of the present invention. It is explanatory drawing of winding operation | movement. It is explanatory drawing of the winding operation | movement following FIG. It is explanatory drawing of the winding operation | movement following FIG. It is explanatory drawing of the winding operation | movement following FIG. It is a schematic block diagram of the conventional carousel reel installation.

Hereinafter, the carousel reel equipment according to the present invention will be described in detail with reference to the drawings.

1 is a schematic configuration diagram of a carousel reel facility according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a winding operation, FIG. 3 is an explanatory diagram of a winding operation following FIG. 2, and FIG. FIG. 5 is an explanatory diagram of the winding operation following FIG. 4.

A carousel reel facility 1 shown in FIG. 1 is provided, for example, on the exit side of a continuous tandem rolling mill having a plurality of rolling stands in a cold rolling line (not shown) for producing a cold-rolled strip (hereinafter referred to as strip S). It is provided. The strip S rewinds the hot-rolled coiled preceding strip Sf and the succeeding strip Sb (see FIGS. 2 to 5) on the entry side of the continuous tandem rolling mill. It joins with the front-end | tip of the succeeding strip Sb, and repeats the same operation | work sequentially and is formed, and is supplied to a continuous tandem rolling mill without a cut | interruption.

As shown in FIG. 1, a pair of upper and

lower entrance rollers

11 a and 11 b are rotatably supported on the entrance side of the carousel reel facility 1. These entrance-

side rollers

11a and 11b are arranged to face each other so as to sandwich the transported strip S.

A pair of upper and

lower drum shears

12a and 12b is rotatably supported on the downstream side of the

entrance rollers

11a and 11b. The

drum shears

12a and 12b receive the strip S conveyed from the

entrance rollers

11a and 11b. Oppositely arranged so as to sandwich. And the

cutting blades

121a and 121b are provided in the outer peripheral part of the drum shears 12a and 12b, These

cutting blades

121a and 121b are arrange | positioned so that it may oppose at the time of drum rotation. That is, when the drum shears 12a and 12b, which are synchronized with the transport speed of the strip S and are synchronously rotated in opposite directions, rotate once, the strip S is cut at a predetermined position by the protruding

cutting blades

121a and 121b. It has become so.

A deflector roller 13 is rotatably supported on the downstream side of the drum shears 12a and 12b. The deflector roller 13 changes the direction of transport of the strip S by winding the strip S.

The

guide plates

14 and 15 are provided below the deflector roller 13. The guide plate 14 extends and is fixed in the transport direction of the strip S, and the guide plate 15 has a guide position for guiding the strip S and a retracted position retracted from the guide position, as will be described in detail later. It is supported so that it can move between them. Note that the guide plate 15 shown in FIG. 1 is in a state of being arranged at the guide position.

On the other hand, on the exit side of the carousel reel facility 1, a disk-shaped carousel reel 21 that is driven to rotate about a substantially horizontal axis is provided. A first winding drum 22 and a second winding drum 23 are supported on the front surface of the carousel reel 21 so as to be rotatable about a substantially horizontal axis. The first take-up drum 22 and the second take-up drum 23 are arranged symmetrically with respect to the rotation shaft of the carousel reel 21, and the first take-up drum 22 takes up the cut preceding strip Sf. The second winding drum 23 winds the cut subsequent strip Sb.

In the rotation state of the carousel reel 21 shown in FIG. 1, the first winding drum 22 is disposed at the winding start position on the upstream side of the reel, and the second winding drum 23 is wound on the downstream side of the reel. It is placed at the removal completion position. In order to replace the respective winding positions of the first winding drum 22 and the second winding drum 23, it is possible to revolve the carousel reel 21 by 180 ° clockwise. The winding start position is set to be lower than the winding completion position, and the winding

drums

22 and 23 disposed at the winding start position are disposed at substantially the same height as the deflector roller 13. It has come to be. That is, the winding start position is set to be approximately the same height as the pass line of the strip S carried into the entrance side of the carousel reel facility 1.

Here, a belt wrapper 24 can be attached to and detached from the first winding drum 22 or the second winding drum 23 arranged at the winding start position. The bell trapper 24 is configured by winding a pressing belt around a plurality of rollers, and is wound around the outer peripheral surfaces of the winding

drums

22 and 23 to wind the ends of the cut strips Sf and Sb. It helps to wind the take-up

drums

22 and 23 around the outer peripheral surface.

Further, a plurality of rotatable snubber rollers 25 (three in the figure) can be attached to and detached from the first winding drum 22 or the second winding drum 23 arranged at the winding completion position. The snubber roller 25 is supported so as to be able to swing, and is wound in a coil shape by contacting the outer peripheral surface of the strips Sf and Sb wound around the winding

drums

22 and 23 so as to follow the coil diameter. The strips Sf and Sb thus taken are pressed so as not to jump up. That is, the snubber roller 25 swings outward in the coil radial direction while pressing the outer peripheral surface as the coil diameter increases as the winding of the strip S by the winding

drums

22 and 23 progresses. It has become.

The uppermost disposed snubber roller (pressing means) 25 is rotatably supported at the tip of the swing arm 26. The swing arm 26 is supported at its base end so as to be swingable, and a receiving base 27 is provided at the tip thereof so as not to interfere with the rotation of the snubber roller 25.

Furthermore, the base end of the guide frame 31 is supported on the rotating shaft of the deflector roller 13 so as to be swingable. A guide roller 32 is rotatably supported at the tip of the guide frame 31, and the guide roller 32 is disposed so as to face the upper surface of the receiving base 27.

Further, magnets 33 and support rollers 34 are alternately provided on the lower surface of the guide frame 32 from the base end side toward the tip end side, and the outer peripheral surface of the support roller 34 protrudes from the attracting surface of the magnet 33. Are arranged to be. On the other hand, a link member 35 is provided on the upper surface of the guide frame 32, and one end of a link bar 36 is swingably supported by the link member 35. The other end of the link bar 36 is supported by a rod 37a of an elevating cylinder 37 so as to be swingable. Further, a base end of the elevating cylinder 37 is also supported so as to be swingable.

The guide frame 31, the guide roller 32, the magnet 33, and the support roller 34 constitute a guide unit, and the link member 35, the link bar 36, and the lift cylinder 37 are a swing unit and a swing unit. It constitutes a movement permitting means.

That is, by extending the rod 37 a of the lifting cylinder 37, the guide roller 32 of the guide frame 31 comes into contact with the receiving base 27 of the swing arm 26. As a result, the guide frame 31 is swung to the guide position, and the strips S (strips Sf and Sb) wound around the winding

drums

22 and 23 disposed at the winding completion position are replaced with the magnet 33. Can be guided by the support roller 34 while adsorbing (see FIG. 1).

On the other hand, by shortening the rod 37 a of the lifting cylinder 37, the guide roller 32 of the guide frame 31 is separated from the receiving base 27 of the swing arm 26. As a result, the guide frame 31 is swung to the retracted position, and interference with the take-up

drums

22 and 23 that move due to the revolution of the carousel reel 21 can be avoided (see FIGS. 4 and 5).

Here, when the guide frame 31 is disposed at the guide position, as the coil diameter of the strip S (strips Sf and Sb) wound around the winding

drums

22 and 23 disposed at the winding completion position increases, The guide frame 31 also swings via the snubber roller 25 and the guide roller 32. When the guide frame 31 swings, the rod 37a of the lifting cylinder 37 remains extended, and the link member 35, the link bar 36, and the lifting cylinder 37 itself swing. Since these form a link mechanism, the swing of the guide frame 31 is allowed.

Further, a demagnetizing device 38 is provided in the guide frame 31 so as to face the magnet 33. The demagnetizer 38 erases the magnetism of the peripheral device magnetized by the magnetic force of the magnet 33 when the carousel reel equipment 1 is stopped and the magnetic force of the magnet 33 is OFF.

Next, the winding operation of the carousel reel facility 1 will be described in detail with reference to FIGS.

First, as shown in FIG. 2, the strip S (strip Sf) cold-rolled by the continuous tandem rolling mill is changed in direction by the deflector roller 13 and moved to the first winding drum 22 moved to the winding completion position. It is wound up.

At this time, the snubber roller 25 is in contact with the outer peripheral surface of the preceding strip Sf wound around the first winding drum 22, and presses the preceding strip Sf so as not to jump up. Further, the rod 37a of the lifting cylinder 37 is extended, and the guide roller 32 comes into contact with the receiving base 27, so that the guide frame 31 is disposed at the guide position. As a result, the preceding strip Sf is attracted by the magnet 33 and comes into contact with the support roller 34. As a result, the preceding strip Sf is stably guided toward the first winding drum 22 by the rotation of the support roller 34 without flapping or jumping up.

The second winding drum 23 that has moved to the winding start position stands by while being rotationally driven as a precaution, and a belt wrapper 24 is wound around the outer peripheral surface thereof.

As shown in FIG. 3, as the coil diameter of the preceding strip Sf wound around the first winding drum 22 increases, the snubber roller 25 swings outward in the radial direction. Accordingly, the swing frame 26 also swings, so that the guide roller 32 rolls on the receiving base 27 of the swing frame 26 and the guide frame 31 also swings.

As described above, the snubber roller 25 swings as the coil diameter of the preceding strip Sf is increased, and the link operation is performed by the link member 35, the link bar 36, and the lift cylinder 37 in the extended state. In conjunction with the swing of the

snubber roller

25, 31 swings at substantially the same angle as the winding angle of the preceding strip S. As a result, the attracting surface of the magnet 33 is always parallel to the surface of the preceding strip Sf, so that the attracting is performed efficiently and the surface of the preceding strip Sf is surely in contact with the outer peripheral surface of the support roller 34. Therefore, the preceding strip Sf is stably guided. Further, since it is not necessary to operate the lifting cylinder 37, the guide frame 31 is interlocked via the guide roller 32 with no response delay with respect to the swing of the snubber roller 25.

Next, when the coil diameter of the preceding strip Sf wound on the first winding drum 22 reaches a predetermined size, the

cutting blades

121a and 121b protrude from the drum shears 12a and 12b that are driven to rotate, and the preceding strip Sf and The joint with the subsequent strip Sb is cut. At this time, since the preceding strip Sf is attracted to the magnet 33 of the guide frame 31 before being cut and is stably guided, the tail end of the preceding strip Sf flutters even if the tension is released by cutting. And is guided to the first take-up drum 22 stably along the support roller 34 without jumping or jumping up.

And as shown in FIG. 4, the coil of the preceding strip Sf wound up by the 1st winding drum 22 is extracted by the coil extraction device which is not shown in figure. At this time, the guide frame 31 is moved to the retracted position by shortening the rod 37 a of the lifting cylinder 37, and the snubber roller 25 is also retracted to the outside of the carousel reel 21.

On the other hand, the cut subsequent strip Sb is placed on the guide plate 15 that has been moved to the guide position because the adsorption of the magnet 33 arranged at the lowest position (the base end side of the guide frame 31) is turned off. Then, winding is started on the second winding drum 23 arranged at the winding start position. At this time, since the belt wrapper 24 is wound around the outer peripheral surface of the second winding drum 23, the leading end of the cut subsequent strip Sb is surely wound around the outer peripheral surface of the second winding drum 23. It has become.

Next, as shown in FIG. 5, the guide plate 15 is moved to the retracted position, and the belt wrapper 24 is opened and retracted downward with respect to the second winding drum 23, and then the carousel reel 21 is rotated 180. ° Revolve. Thus, the second winding drum 23 moves to the winding completion position while winding the trailing strip Sb, while the first winding drum 22 moves to the winding start position and enters a standby state. Further, thereafter, the same winding operation is sequentially repeated.

Therefore, according to the carousel reel equipment according to the present invention, the guide frame 31 is against the snubber roller 25 that presses the outer peripheral surface so as to follow the coil diameter of the strip S wound at the winding completion position. The guide frame 31 can be swung so as to interlock with the coil diameter following operation of the snubber roller 25 by bringing the tip into contact with it. As a result, the strip S is attracted to the magnet 33 and contacts the support roller 34 regardless of the coil diameter, so that even if it is cut and released from the tension, its tail end is completely wound. It is possible to stably guide to the winding

drums

22 and 23 arranged at the positions.

Further, when the snubber roller 25 follows the coil diameter, the rod 37a of the elevating cylinder 37 is kept extended, and the link member 35, the link bar 36, and the elevating cylinder 37 itself are By forming the link mechanism, the guide frame 31 can be swung at substantially the same angle as the winding angle of the strip S. Thereby, the strip S can be efficiently attracted by the magnet 33 and stably guided by the support roller 34. In addition, the guide frame 31 can be interlocked with the coil diameter follow-up operation of the snubber roller 25 without causing a response delay.

As a result, it is possible to prevent flapping and damage due to jumping out of the tail end of the strip S toward the winding completion position at the time of cutting, and to prevent the tail end itself from being bent or damaged, and damage to peripheral equipment. it can. Thus, it is not necessary to cut the strip S at a lower speed than necessary. For example, the transport speed of the strip S at the time of cutting can be set to 250 to 350 m / min. Accordingly, not only the productivity is improved, but also there is no possibility of adversely affecting the plate shape control of the strip S during rolling, so the strip S can be rolled with high accuracy and the quality can be improved.

Further, in the carousel reel equipment according to the present invention, when the transport speed of the strip S at the time of cutting is between 250 and 300 m / min, even if the strip S is not attracted by the magnet 33, its tail end is supported by the support roller 34. Just can guide. As a result, the magnet 33 is attracted only when the conveying speed of the strip S at the time of cutting is between 300 and 350 m / min.

The present invention is applicable to a carousel reel facility with a good yield and excellent productivity.

1 Carousel reel equipment, 11a, 11b Incoming roller, 12a, 12b Drum shear, 121a, 121b Cutting blade, 13 Deflector roller, 14, 15 Guide plate, 21 Carousel reel, 22 First winding drum, 23 Second Winding drum, 24 bell trapper, 25 snubber roller, 26 swing arm, 27 cradle, 31 guide frame, 32 guide roller, 33 magnet, 34 support roller, 35 link member, 36 link bar, 37 lift cylinder, 37a Rod, 38 Degaussing device

Claims

Two revolving winding drums arranged symmetrically across the rotation axis are provided on a revolving disc-shaped carousel reel,
The one winding drum arranged on the upstream side starts winding the preceding strip, and the carousel reel is revolved during the winding to move the one winding drum to the downstream side. A carousel reel device in which the other winding drum is moved upstream, the tail end of the preceding strip is cut in this state, and the leading end of the trailing strip is wound up by the other winding drum. There,
Provided at the same height as the winding drum disposed on the upstream side and the inlet side of the carousel reel, guides the strip to be conveyed to the winding drums disposed on the upstream side and the downstream side. A deflector roller to
A pressing means for pressing the outer peripheral surface so as to follow the coil diameter of the strip wound on the winding drum disposed on the downstream side, and suppressing fluttering of the tail end of the cut strip;
The winding drum, which is supported so as to be swingable around the rotation shaft of the deflector roller, and whose tip is linked to the coil diameter following operation of the pressing means, and the tail end of the cut strip is disposed downstream. Guidance means for guiding towards the
Oscillating means for oscillating the guide frame so as not to interfere with the take-up drum that moves due to revolution of the carousel reel;
A carousel reel facility comprising: a rocking allowance means for allowing rocking of the interlocking guide means without operating the rocking means when the pressing means performs a coil diameter following operation. .
The carousel reel facility according to claim 1,
Carousel reel equipment characterized in that the conveying speed of the strip during cutting is set to 250 m / min or more.
The carousel reel facility according to claim 1,
The guide means includes a magnet for adsorbing the strip by magnetic force, and a roller protruding from the adsorption surface of the magnet.
Carousel reel equipment, wherein the magnet is attracted when the strip transport speed during cutting exceeds 300 m / min.