JP2568885Y2 - Continuous cold rolling equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous cold rolling equipment for continuously rolling a metal strip and continuously winding it into a coil.

[0002]

2. Description of the Related Art FIG. 3 is a side view showing the concept of a conventional continuous cold rolling facility after a group of cold rolling mills, and FIG. 4 is a side view showing the operation of the facility shown in FIG.

[0003] As shown in FIG. 3, a strip 50 cold-rolled by a group of cold rolling mills 51 is passed through a traveling shearing machine 53, and is passed through a deflector roll 56.
7 and wound around the coil 50a by one of the mandrels 58a.

When the coil 50a has a predetermined size, the continuously fed strip 50 is pressed down by a pinch roll 52, and the upper and lower knives 53 are rotated by rotating the upper and lower drums 54 of the shearing machine 53 during traveling. 55, the winding by one mandrel 58a is completed, and the cut steel strip 50 is cut into a carousel reel 57 by a pinch roll.
And wound by the other mandrel 58b.

During this winding, one of the mandrels 58
The coil 50a wound up by a is pulled out and transported.

[0006] The strip 50 continuously rolled by the group of cold rolling mills 51 is continuously wound by the coil 50a while being cut by the running shear.

[0007]

However, in the above-mentioned conventional equipment, when troubles such as poor winding by the carousel reel 57 and breakage of the steel strip 50 occur, as shown in FIG. 51 and the carousel reel 57 are stopped, and the running steel strip 50 is stopped.
Need to be cut off.

At this time, the knife 55 of the traveling shears 53
Rotates together with the drum 54 to pull the steel strip 50, and a great tension is generated in the steel strip 50 between the cold rolling mill group 51 and the running shearing machine 53. Therefore, there is a risk that troubles such as breakage of the fixing bolt for the knife 55 of the traveling shears 53 may occur.

The present invention has been proposed in order to solve such a problem, and in the case of stop cutting in which the traveling of the strip is stopped and cut by a traveling shear, the strip is rewound. To provide a new continuous cold rolling equipment capable of easily loosening the tension of the strip without causing any excessive tension between the traveling shear of the strip and the cold rolling mill without generating excessive tension. It is intended to be.

[0010] As a configuration for achieving the above object, a continuous cold rolling facility of the present invention includes a cold rolling mill, and a continuous winding machine that winds a strip rolled by the cold rolling mill in a coil shape. In the continuous cold rolling equipment provided with a traveling shear provided on the entrance side of the continuous winding machine, when stopping and cutting the strip running and traveling on the entrance side of the traveling shear machine, In order to loosen the tension of the strip, a strip loop forming device is provided to reduce or release the strip.

[0011]

The continuous cold rolling equipment according to the present invention rolls down a strip which is rolled and traveled by a cold rolling mill by a strip loop forming device at the entrance side of the running shear and passes through the running shear. Then, it is wound on a coil by a continuous winding machine.

When the coil has a predetermined size, the running strip is cut by the inter-shearing machine to complete winding, and the cut strip is formed into a loop in the same manner as described above. Winding is started by another mandrel of the winder.

If troubles such as poor winding or breakage of the strip occur during this winding, the cold rolling mill and the continuous winding machine are stopped to stop the running of the strip and to execute the loop of the strip. Release the pressure of the strip by the forming device to give a slack (loop) to the strip, rotate the running shear to cut the strip, and tension between the running shear and the cold rolling mill. Prevent occurrence.

[0014] As a result, no unnecessary load is generated on the shearing machine during traveling, so that occurrence of an accident can be prevented.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a side view showing the concept after the cold rolling mill group of the cold rolling equipment according to the present invention, and FIG. 2 is a side view showing the operation of the equipment shown in FIG. The same parts as those of the conventional device are denoted by the same reference numerals, and detailed description thereof will be omitted.

1 and 2, reference numeral 10 denotes a looper. A looper roll 1 rotatably mounted on a tip of a rod portion of a hydraulic cylinder 2 fixedly mounted on a running steel strip 50, and a looper roll 10 inserted therein. The deflector rolls 3 are disposed on both sides of the steel strip 50 with the strip 50 interposed therebetween. The deflector rolls 3 are disposed between the cold rolling mill group 51 and the pinch rolls 52 on the entry side of the traveling shearing machine 53. 56 is a deflector roll. 5
Reference numeral 7 denotes a carousel reel, which is a pair of mandrels 58.
a, 58b.

Next, the operation of the present apparatus will be described. As shown in FIG. 1, a steel strip 50 that is cold-rolled and traveled by a group of cold rolling mills 51 is lowered by lowering a looper roll 1 by a hydraulic cylinder 2, and the steel strip 50 is formed by the looper roll 1 and the deflector roll 3. The wrapping angle is given so as not to slip, the paper is passed through a shearing machine 53, fed to a carousel reel 57 via a deflector roll 56, and a coil 50 is fed by one mandrel 58a.
Wound around a.

When the coil 50a has a predetermined size, the continuously fed strip 50 is rotated by the upper and lower knives 5 of the shearing machine 53 by rotating the upper and lower drums 54.
5, and the winding by one mandrel 58a is completed, and the cut steel strip 50 is cut into the other mandrel 58b.
Take up by.

During this winding, one mandrel 58
a, the coil 50a wound around the mandrel 58
a.

During the winding, poor winding of the steel strip 50 may occur.
When a break or the like occurs, as shown in FIG. 2, the cold rolling mill group 51 and the carousel reel 57 are stopped and the pinch roll 52 is pressed down to stop the running of the strip 50, and the rolling of the pinch roll 52 is stopped. At the same time, the looper roll 1 is raised by the hydraulic cylinder 2 to release the reduction of the steel strip 50 to provide slack.

The upper and lower drums 5 of the traveling shears 53
4 and the knife 55 are rotated to cut the strip 50.

At this time, the steel strip 50 is pulled toward the cold rolling mill group 51 by the upper and lower knives 55 until it is completely cut. However, since the slack has been given, no tension is generated. There is no unnecessary load on the machine 53.

Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various design changes are possible within the scope of the technical idea of the present invention.
All of them belong to the technical scope of the present invention.

[0024]

As described in detail above, in the cold rolling equipment of the present invention, the belt is formed and wound by the band loop forming device disposed on the entrance side of the traveling shearing machine. When a trouble such as poor winding of the material or breakage occurs, the loop can be released to provide slack and cut by the traveling shear.

That is, the invention of the present application is to easily loosen the tension of the strip and perform the cutting at the time of the stop cut where the running of the strip is stopped and cut, and therefore, the cutting is performed between the strip and the cold rolling mill. No tension is generated, the running shear can be protected from unnecessary load, and troubles such as breakage of the knife fixing bolt of the running shear can be prevented,
Safety is significantly improved.

[Brief description of the drawings]

FIG. 1 is a side view showing the concept of a group of cold rolling mills in a continuous cold rolling facility according to one embodiment of the present invention.

FIG. 2 is a side view showing the operation of the equipment shown in FIG.

FIG. 3 is a side view showing a concept of a group of conventional cold rolling mills in and after a cold rolling mill group.

FIG. 4 is a side view showing the operation of the equipment of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Looper roll 2 Hydraulic cylinder 3 Deflector roll 10 Looper 50 Strip 50a Coil 51 Cold rolling mill group 52 Pinch roll 53 Running shear 54 Drum 55 Knife 57 Carosel reel 58a, 58b Mandrel

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenzo Mizuno 4-6-22 Kannonshinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Manufacturing Co., Ltd. (56) References JP-A-63-80920 (JP, A)

Claims (1)

(57) [Scope of request for utility model registration] 1. A cold rolling mill, a continuous winding machine for winding a strip rolled by the cold rolling mill in a coil shape, and a running shearing machine disposed on an entrance side of the continuous winding machine. In the continuous cold rolling equipment provided with, to reduce the tension of the strip when stopping and cutting the strip running and rolling on the entrance side of the traveling shearing machine, to reduce or release the reduction of the strip. A continuous cold rolling facility, wherein a strip material loop forming device for enabling the process is provided.