JP3231866B2 - Winding method in endless rolling - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding method in endless rolling, and more particularly, to a method in which a tail end of a preceding plate cut when a continuously fed plate is alternately wound by two winding machines is high-speed. After winding, the tail end is prevented from bending or tearing due to whirling before decelerating and stopping.

[0002]

2. Description of the Related Art In recent years, in order to improve rolling efficiency, endless rolling, in which bars are joined and rolling is continuously performed, is often performed instead of conventional bar rolling. BACKGROUND ART A plate material is alternately wound by two winders.

In the conventional bar rolling, the bar interval is 5 to 60.
Because there is about one second, when winding one plate with one winder, the winding speed is reduced near the tail end, and when the tail end is wound, it is completely stopped as a low speed state. On the other hand, the other winder was prepared for operation.

[0004]

However, in the case of endless rolling, since a plate material such as a strip is continuously sent out, if the preceding plate material among the plate materials cut for rewinding is decelerated, the succeeding plate material is decelerated. The plate material will collide, and after completely winding at a high speed without decelerating the preceding plate material,
You have to slow down and stop.

However, when the tail end is wound in such a high speed state and then the motor is decelerated and stopped, the winding shaft rotates for a considerable time due to the inertia of the plate material wound by the winder. That is, the tail end of the plate material is swung by centrifugal force.

For this reason, there is a problem in that the plate material hits a device around the winder and is bent or cut off.

Therefore, the tail end is pressed by using a wrapper roll which presses the leading end of the plate material at the start of winding of the plate material (for example, JP-A-53-109845, JP-A-55-103218, etc.). ) Can be considered,
At the start of winding and at the end of winding, since the diameter of the plate material is different, a large space is created between the wrapper rolls, and there is a problem that the tail end swings during this time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is a tail end of a preceding plate material cut when a continuously delivered plate material is alternately wound by two winders. To provide a winding method in endless rolling that can prevent the tail end from bending or tearing due to whirling after winding at high speed and before deceleration / stop.

[0009]

In order to solve the problems of the prior art, a first winding method in endless rolling according to the present invention employs a winding method for winding a tail end of a sheet material in endless rolling. Attaching the wrapper roll to the outer periphery of the plate material to press the tail end, and retracting the apron guide attached to the wrapper roll to guide the plate material at the start of winding so as not to contact the tail end of the plate material and winding it up It is characterized by the following.

In a second winding method for endless rolling according to the present invention, when winding the tail end of a plate in endless rolling, the tail end is pressed by abutting a wrapper roll on the outer periphery of the wound plate. An auxiliary roll or an auxiliary guide presses the tail end whirling between these wrapper rolls and winds them.

Further, in the third winding method in endless rolling according to the present invention, when winding the tail end of the plate material in endless rolling, the tail end is pressed by abutting a wrapper roll on the outer periphery of the wound plate material. Further, a plate guide is provided between the wrapper rolls so as to take up the roll while preventing hip break due to whirling of the tail end.

In a fourth winding method for endless rolling according to the present invention, when winding the tail end of a plate material in endless rolling, the tail end is pressed by abutting a wrapper roll on the outer periphery of the wound plate material. If necessary, retract the apron guide attached to the wrapper roll so that it does not come into contact with the tail end of the plate material and wind it up. And, press the whirling of the tail end with the auxiliary roll or auxiliary guide between the wrapper rolls and wind it up. In addition, winding is performed in combination with the above and winding provided while providing a plate guide between the wrapper rolls to prevent waist break due to whirling of the tail end.

[0013]

According to the first endless rolling winding method of the present invention, the outer periphery of the wound plate is pressed by the wrapper roll to prevent the plate from unwinding, and the sheet material swinging between the wrapper rolls is prevented. The apron guide is retracted so that the tail end does not come into contact with the apron guide, and the plate material wound up at a high speed can be wound without bending or breaking due to whirling around the tail end.

According to the second winding method of the present invention for endless rolling, the outer periphery of the wound plate is pressed by a wrapper roll to prevent the plate from being unwound, and swings between the wrappers. An auxiliary roll or auxiliary guide is provided to hold the tail end of the plate material, and the tail end of the plate material wound at high speed is held down by the wrapper roll, and the auxiliary roll or auxiliary guide is used to hold the tail end whirling. , So that it can be wound up without being bent or broken.

Further, according to the third winding method in the endless rolling of the present invention, the outer periphery of the wound plate material is pressed by the wrapper roll to prevent the plate material from unwinding, and swings between the wrapper rolls. The tail end of the plate material is provided with a plate guide to suppress whirling, and the tail end of the plate material wound up at high speed is pressed with a wrapper roll,
By suppressing the whirling of the tail end by the plate guide, it is possible to take up without bending or breaking.

Further, according to the fourth winding method of the present invention for endless rolling, the outer periphery of the wound plate is pressed by the wrapper roll so that the plate does not unwind, and swings between the wrappers. The tail end of the plate material is combined with the evacuation of the apron guide, the installation of the auxiliary roll or auxiliary guide, and the installation of the plate guide as necessary to suppress the whirling of the tail end. This makes it possible to take up the plate material more reliably while preventing the tail end of the plate material from being bent or broken.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic explanatory view at the end of winding and at the start of winding according to an embodiment of a winding method in endless rolling of a fourth invention.

The winding method in this endless rolling is as follows.
This is applied to the winding of the tail end by the winder 10 after cutting the continuously rolled plate material W.

1B, wrapper rolls 12-1 and 12- disposed at four positions around a winding shaft 11 of a winder 10, as shown in FIG. 2,12-
3, 12-4 are pressed against the plate material W, and an apron guide 1 provided downstream of these wrapper rolls 12 is provided.
The sheet material W is wound up while guiding the sheet material W so as to close each interval of the wrapper roll 12 with 3-1, 13-2, 13-3 and 13-4.

After winding about 5 windings on the winding shaft 11 from the start of winding, the wrapper roll 12 and the apron guide 13 are retracted to perform normal winding. When a predetermined amount of the plate material W is wound up, the plate material W
Is disconnected.

It is necessary to wind the tail end of the cut preceding plate material W so as not to collide with the leading end of the succeeding plate material W while keeping the normal winding speed at a high speed. It is necessary that the tail end of the plate material W wound around the take-up shaft 11 hits each part of the winder 10 so as not to bend or break.

Accordingly, in this winding method, four wrapper rolls 12-1, 12-2, 12-2,
12-3 and 12-4, and two auxiliary rolls or auxiliary guides 14-1 and 14-2 are connected to the first wrapper roll 1.
It is provided between 2-1 and the second wrapper roll 12-2 and between the second wrapper roll 12-2 and the third wrapper roll 12-3. Here, the auxiliary roll or auxiliary guide
The auxiliary roll is not shown in the figure, but is used as a guide for the auxiliary guide.
Use a roll that rotates like a wrapper roll instead
(The same applies to auxiliary rolls below.)
Ji).

Further, a total of four plate guides 15-1, 15-2, 15-3, and 15-4 are arranged in a portion where the installation of the wrapper roll 12, the auxiliary roll, or the auxiliary guide 14 is restricted. The first wrapper roll 12-1
One plate guide 15-1 on the entry side of the second wrapper roll 12-2, and one plate guide 15-2 on the entry side of the third wrapper roll 12-3. Guides 15-3, 15-4
Are arranged respectively.

The two auxiliary rolls or auxiliary guides 14 and the plate guide 15-3 are used from the state in which the plate material W is cut, and can be retracted from the start of winding to the normal winding state. ing.

The apron guide 13 on the downstream side of the wrapper roll 12 used at the start of winding is retracted so as not to come into contact even if whirling occurs due to the centrifugal force at the tail end of the plate material W.

Thus, the four wrapper rolls 12
Using two auxiliary rolls or auxiliary guides 14 and four plate guides 15 and four apron guides 13
Is retracted, and the tail end of the plate material W is wound up.

Then, the sheet material W is placed on the winding shaft 11 of the winding machine 10.
Even when the coil is wound, the coil continues to rotate until it is stopped by the brake due to the inertial force. In addition to preventing rotation, the auxiliary roll or auxiliary guide 14 and the plate guide 15 reduce the whirling of the tail end of the plate material W to prevent breakage of the waist.

Further, the apron guide 13 which is expected to collide due to the whirling of the tail end of the plate material W is retracted in advance, thereby preventing breakage of the apron.

The outer periphery of the sheet material W thus wound is pressed by the wrapper roll 12 so that the sheet material does not unwind, and the tail end of the sheet material W oscillating between the wrapper rolls 12 is retracted by the apron guide 13. And the installation of the auxiliary roll or the auxiliary guide 14 and the installation of the plate guide 15 to suppress the whirling of the tail end, so that the tail end of the plate material W wound up at a high speed is bent or broken. Winding can be performed while reliably preventing occurrence.

Next, an embodiment of the first invention will be described with reference to FIG. In the winding method in this endless rolling, at the start of winding of the sheet material W, as shown in FIG. 2B, four wrapper rolls 12 around a winding shaft 11 of a winding machine 10 and a downstream wrapper roll 12 are provided. Winding using the apron guide 13 is the same as in the above embodiment.

On the other hand, as shown in FIG. 2 (a), the winding of the tail end of the plate material W in the endless rolling is performed by four wrapper rolls 12-1, 12-2, 12-3 and 12-4. While holding down W to prevent rewinding,
Since the tail end of the plate material W swings between the wrapper rolls 12, all the apron guides 13-1, 13-2, 13-13 do not come into contact with the apron guide 13 even if they swing.
-3 and 13-4 are largely retracted to take up and stop by the brake after the end of winding.

Therefore, the outer periphery of the rolled sheet material W can be pressed by the wrapper roll 12 so that the sheet material W does not unwind, and the tail end of the sheet material W oscillating between the wrapper rolls 12 is formed by all the apron guides 13. Since it is retracted, contact can be prevented, and the plate material W wound up at high speed
It can be wound up without bending or breakage at the tail end.

Next, an embodiment of the second invention will be described with reference to FIG. In the winding method in the endless rolling, at the start of winding of the sheet material W, as shown in FIG. 3B, the winding is performed using only the four wrapper rolls 12 around the winding shaft 11 of the winding machine 10. Takes place.

On the other hand, as shown in FIG. 3 (a), the winding of the tail end of the plate material W in the endless rolling is performed by four wrapper rolls 12-1, 12-2, 12-3 and 12-4. Since the tail end of the plate material W swings between each of the wrapper rolls 12 while holding down W to prevent rewinding, two auxiliary rolls or auxiliary guides 14-1 and 14-2 are provided.
The first wrapper roll 12-1 and the second wrapper roll 12
-2 and between the second wrapper roll 12-2 and the third wrapper roll 12-3, after the plate material W is cut, after the winding of the tail end is completed, and until the winding shaft 11 stops. Used only during

By winding the tail end of the plate material W in this way, the tail end of the plate material W can be wrapped around the four wrapper rolls 12-1 and 12-1.
The two auxiliary rolls or auxiliary guides 14-1 and 14-2 can be used to press the tail end whirling while holding down with 2-2, 12-3 and 12-4 to prevent rewinding. d be around and shake the tail end of the plate material W between these rolls 12 and 14
Since the pron guide is not provided, it is possible to perform winding and stop by a brake after the winding is completed while preventing breakage and breakage due to collision.

Next, an embodiment of the third invention will be described with reference to FIG. In the winding method in the endless rolling, at the start of winding of the sheet material W, as shown in FIG. 4B, four wrapper rolls 12 around a winding shaft 11 of a winding machine 10 and a fixed apron guide 13 are provided. Winding is performed using.

On the other hand, as shown in FIG. 4A, the winding of the tail end of the plate material W in the endless rolling is performed by four wrapper rolls 12-1, 12-2, 12-3, and 12-4. While preventing the rewind by pressing W, the whirling is suppressed, and between each of the wrapper rolls 12, the tail end of the plate material W swings, so that the guide is performed using the plate guide 14,
At the start of winding or in the normal winding state, the apparatus can be retracted.

The four plate guides 14 are provided.
Four apron guides 13-1, 13-2, 13-3, 1 on the exit side of each wrapper roll 12-1, 12-2, 12-3, 12-4.
3-4 and first to third wrapper rolls 12-1, 12-2, 12
The three plate guides 15-1, 15-2, and 15-3 on the entry side of -3 can substantially cover the outer periphery of the coil.

By winding the tail end of the plate material W in this manner, the tail end of the plate material W can be wrapped around the four wrapper rolls 12-1 and 1-1.
2-2, 12-3, and 12-4 can be used to prevent whirling while preventing unwinding. Even if the tail end of the plate material W oscillates between each of these wrapper rolls 12, seven wrappers can be used. Since the plate guides 14-1 to 14-4 and 15-1 to 15-3 are provided, it is possible to perform winding and stop by a brake after the winding is completed while preventing breakage and breakage due to collision. .

It should be noted that the present invention is not limited to the above embodiment, but may be configured by arbitrarily combining the first to third inventions as in the fourth invention. Alternatively, the number of auxiliary guides, plate guides, and the like may be arbitrarily changed.

It goes without saying that changes may be made to each component without departing from the spirit of the present invention.

[0042]

As described above in detail with the embodiment, according to the first winding method in endless rolling of the present invention, the outer periphery of the wound plate is pressed by the wrapper roll, and the plate is wound. The apron guide is retracted so that it does not return, and the tail end of the plate that swings between the wrapper rolls does not touch, so that the tail end of the plate wound up at high speed may be bent or broken. It can be wound up without.

Further, according to the winding method in the second endless rolling of the present invention, the outer periphery of the wound plate is pressed by the wrapper roll so that the plate does not unwind, and swings between the wrappers. The tail end of the plate is provided with an auxiliary roll or auxiliary guide to suppress the whirling of the tail end, so the tail end of the plate material wound at high speed is pressed by the wrapper roll, and whirled by the auxiliary roll or auxiliary guide. By pressing, winding can be performed without causing bending or breakage.

Further, according to the winding method in the third endless rolling of the present invention, the outer periphery of the wound plate material is pressed by the wrapper roll to prevent the plate material from unwinding, and swings between the wrapper rolls. Since the tail end of the plate is provided with a plate guide and pressed, the tail end of the plate wound up at high speed is pressed with a wrapper roll, and the whirling is pressed by the plate guide, so that it does not bend or break. Can be wound up.

According to the fourth winding method of the present invention for endless rolling, the outer periphery of the wound plate is pressed by the wrapper roll so that the plate does not unwind, and swings between the wrappers. The tail end of the plate material can be prevented from whirling by combining the evacuation of the apron guide, the installation of the auxiliary roll or auxiliary guide, and the installation of the plate guide as necessary. Winding can be performed while preventing the tail end from being bent or broken.

Therefore, in any of the inventions, the tail end can be wound up reliably in the endless rolling.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a winding method in endless rolling according to a fourth embodiment of the present invention at the time of finishing winding and at the time of starting winding.

FIG. 2 is a schematic explanatory view at the end of winding and at the start of winding according to an embodiment of a winding method in endless rolling of the first invention.

FIG. 3 is a schematic explanatory view at the end of winding and at the start of winding according to an embodiment of a winding method in endless rolling of the second invention.

FIG. 4 is a schematic explanatory view at the end of winding and at the start of winding according to an embodiment of a winding method in endless rolling of a third invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Winding machine 11 Winding shaft 12 Wrapper roll 13 Apron guide 14 Auxiliary guide 15 Plate guide W Plate material

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Takayo 1st Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Pref. Ishikawajima-Harima Heavy Industries Co., Ltd. Yokohama No. 2 Factory (56) References JP-A-5-154550 (JP, A) JP-A-4-94811 (JP, A) JP-A-57-154316 (JP, A) JP-A-5-38519 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) ) B21C 47/06 B21C 47/34

Claims (4)

(57) [Claims] When winding a tail end of a plate material in endless rolling, a wrapper roll is brought into contact with the outer periphery of the wound plate material to press the tail end, and is attached to the wrapper roll to guide the plate material at the start of winding. A winding method in endless rolling, wherein a winding apron guide is retracted so as not to come into contact with a tail end of a sheet material. 2. When winding the tail end of a plate material in endless rolling, a wrapper roll is brought into contact with the outer periphery of the wound plate material to press the tail end, and a tail end is provided between these wrapper rolls by an auxiliary roll or an auxiliary guide. A winding method in endless rolling, characterized in that winding is performed while suppressing whirling of the roll. 3. When winding the tail end of a plate material in endless rolling, a wrapper roll is brought into contact with the outer periphery of the wound plate material to press the tail end, and a plate guide is provided between the wrapper rolls to provide a tail end. A winding method in endless rolling, wherein winding is performed while preventing breakage due to whirling. 4. When winding the tail end of a plate material in endless rolling, a wrapper roll is brought into contact with the outer periphery of the rolled plate material to press the tail end, and an apron guide attached to the wrapper roll is provided as necessary. Retracting and winding so as not to come in contact with the tail end of the sheet material, winding while pressing the whirling of the tail end with the auxiliary roll or auxiliary guide between the wrapper rolls, and providing the plate guide between the wrapper rolls and the tail end A winding method in endless rolling, characterized in that winding is performed in combination with winding while preventing waist bending due to whirling.