JPH07148522A - Coilling equipment - Google Patents

Abstract

PURPOSE:To pull out the end to be uncoiled of a light coil and a coil of thick sheet. CONSTITUTION:A holding roll 26 is pin-connected to the other end of a roll supporting arm 24 by turning the roll supporting arm 24 one end of which is pin-connected to the tip arm 15 with a press cylinder 22 to be supported by a base arm 16 in a turnable manner. The holding roll 26 consists of a roll 27 and a roll supporting member 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device used in a hot rolling facility for continuously rolling a sheet bar, a slab or the like, and more particularly to a winding device provided with a peeler for opening a coil rewinding end. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, in hot rolling equipment for continuously rolling rolled materials such as sheet bars and slabs, the rolled materials to be rolled are individually rough-rolled and finish-rolled to a desired thickness. It was rolled into a plate. However, in this case, the line is stopped due to a defective biting of the material to be rolled in the finish rolling mill, and the yield is reduced due to the defective shape of the front and rear ends of the material to be rolled.

For this reason, the material to be rolled which has been rolled by the rough rolling mill is once taken up and rewound by the take-up device, and then the rear end portion of the former rolled material and the tip portion of the latter rolled material are A rolling method has been adopted in which joining is continuously performed and the finishing rolling machine is continuously supplied and rolled.

Conventional equipment as such hot rolling equipment will be described with reference to FIG. In the figure, reference numeral 1 is a rough rolling machine for rolling a slab having a thickness of about 200 mm to a thickness of about 30 to 50 mm. Reference numeral 2 denotes a winding device that winds the material 5 to be rolled, which is about 30 to 50 mm by the rough rolling mill 1, and then rewinds it.
Reference numeral 3 denotes a joining device, which connects the rear end portion of the material 5 to be rolled and the leading end portion of the material 5 to be rolled, and supplies the material to the downstream finish rolling mill 4 continuously. The finish rolling mill 4 rolls the material to be rolled to a thickness of several mm.

The winding device 2 is composed of a winding and rewinding machine 2a for bending the rolled material 5 to form a coil and also for rewinding, and a rewinding machine 2b for only rewinding the wound coil. A plurality of rewinding machines 2b are provided so as to continuously supply the material to be rolled 5 to the finishing rolling machine 4.

FIG. 3 shows a rewinding end opener (hereinafter referred to as a peeler) which is provided in the rewinding rewinding machine 2a and the rewinding machine 2b of the rewinding device 2 and takes out the rewinding end of the coil 11. . The rewinding machine 2b is composed of a cradle roll 12 that rotates a coil 11. Wound coil 1
To unwind 1, push the arm with the bird's beak-shaped tip fitting 13 out of the unwinding end against the coil,
While rotating the coil 11 on the cradle roll 12,
The unwinding end is pulled out from the coil 11.

The main part of the peeler 14 is an arc-shaped tip arm 15 having a beak-shaped tip fitting 13 at one end,
The tip arm 15 has an L-shaped base arm 16 which is pin-connected to the other end of the tip arm 15 and rotatably supported at the other end. The tip arm cylinder 17 has a cylinder portion supported by a base arm 16 and a rod tip end that is a tip arm 15.
The tip arm 13 is pressed against the outer circumference of the coil 11 by rotating the tip arm 15. The base arm cylinder 18 rotates the base arm 16 to move the tip arm 15
Is moved to the vicinity of the coil 11.

[0008]

Cradle roll 12
When the cradle roll 12 rotates, the upper coil is
The coil 11 is rotated by the frictional force generated on the contact surface with the cradle roll 12 by its own weight. When the coil unwinding end is unrolled, the bending rigidity is large when the plate thickness of the coil is large, so that a large resistance force acts on the tip end fitting 13 of the peeler 14 along the outer circumference of the coil 11. If the frictional force between the contact surface between the cradle roll 12 and the coil 11 is small with respect to this resistance force, the coil 11 does not rotate even if the cradle roll 12 rotates, and the unwinding end cannot be taken out. Thus, the frictional force becomes smaller than the resistance force of the peeler 14 when the coil is small and its own weight is light, the plate thickness of the coil 11 is thick, and the deformation resistance force of the material is large. In such a case, the cradle roll 12
There is a problem in that the coil 11 does not rotate even when is rotated and the unwinding end cannot be pulled out by the peeler 14.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a winding device having a large coil plate thickness and capable of reliably pulling out the unwinding end even with a small weight coil. To aim.

[0010]

In order to achieve the above object, a rewinding machine for rewinding a coil made of a material to be rolled rolled by a rough rolling machine and a rewinding end of the coil of the rewinding machine are provided. In a winding device provided with a peeling opener, the rewinding machine, a pressing roll placed on the top of the coil,
And a pressing device for moving the pressing roll in the substantially vertical direction of the coil and pressing it against the top of the coil.

[0011]

The coil placed on the rewinder has its top portion pressed almost vertically by the pressing roll pressed by the pressing device. This pressing force is added to the own weight of the coil to generate a frictional force with the roll supporting the coil. By making this frictional force larger than the resistance force applied from the rewinding end extractor, the coil overcomes the resistance force and rotates, so that the rewinding end extractor can extract the unwinding end of the coil.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the configuration of this embodiment. The same symbols as those in FIG. 3 represent the same components. The winding / rewinding machine or the rewinding machine is composed of a cradle roll 12 on which a coil 11 is placed and which rotates, and the cradle roll 12 is provided with a rotating mechanism, a swinging mechanism and the like to smoothly rotate the coil 11. The coil pressing device includes a pressing device 21 and a pressing roll 2.
6 and attached to the peeler 14. The pressing device 21 includes a pressing cylinder 22 and a roll supporting arm 24.
It consists of The pressing cylinder 22 is rotatably supported by a base arm 16 by a pin, and is pin-coupled to a roll support arm 24 by a rod fitting 23 attached to the tip of the rod. The roll support arm 24 is pin-connected to the tip arm 15 at one end, and is pin-connected to the pressing roll 26 at the other end. The press roll 26 is two rolls 27
And a roll support member 28 having a triangular shape for supporting the two rolls 27. The rolls 27 are attached to both ends of the bottom side of the roll support member 28, and are connected to the roll support arm 24 by a pin at the top.

Next, the operation will be described. When the coil 11 is placed on the cradle roll 12, the base arm cylinder 18 is rotated by the base arm cylinder 18 to bring the tip of the arm closer to the outer circumference of the coil 11. Next, the tip arm cylinder 17 is driven to rotate the tip arm 15, and the tip fitting 1
3 is pressed against the outer circumference of the coil 11. Then, by driving the pressing cylinder 22, the roll supporting arm 24 is rotated to press the roll 27 on the top of the coil 11. When the cradle roll 12 is rotated in this state, the coil 11
When the unwinding end of the coil 11 reaches the position of the tip fitting 13, the unwinding end is separated from the coil 11 by the tip fitting 13. This allows the rewind end to be pulled out. In this case, in order for the coil 11 to rotate by overcoming the resistance force generated in the tip fitting 13, the frictional force generated on the contact surface between the coil 11 and the cradle roll 12 depends on the added value of the weight of the coil 11 and the pressing force of the roll 27. So that the pressure becomes larger than the resistance force.
It is necessary to set the pressing force of.

In the above-described embodiment, the case where the coil pressing device including the pressing device 21 and the pressing roll 26 is mounted on the peeler 14 has been described, but it is also possible to mount the coil pressing device on a structure independent of the peeler 14.

[0015]

As is apparent from the above description, according to the present invention, the coil pressing device including the pressing roll and the pressing device is provided in the rewinding machine to press the coil. Even in the case of a coil having a large plate thickness, the rewinding end extractor can pull out the rewinding end of the coil. This expands the range of steel sheets in which the winding device can be used.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 2 is a diagram showing an example of hot rolling equipment in which a winding device is installed between a rough rolling mill and a finish rolling mill.

FIG. 3 is a diagram showing a configuration of a rewinding end extractor for extracting a rewinding end of a coil.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rough rolling mill 2 Winding apparatus 2a Winding and rewinding machine 2b Rewinding machine 3 Joining device 4 Finishing rolling machine 5 Rolled material 11 Coil 12 Cradle roll (rewinding machine) 13 Tip fitting 14 Peeler 15 Tip arm 16 Base arm 17 Cylinder for Tip Arm 18 Cylinder for Base Arm 21 Pressing Device 22 Pressing Cylinder 24 Roll Support Arm 26 Pressing Roll 27 Roll 28 Roll Supporting Material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Keigo Murakami 1st Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishi Kawashima Harima Heavy Industries Co., Ltd. Yokohama 2nd factory (72) Toshisada Takechi Central Chiba, Chiba 1 Kawasaki-machi, Kawasaki, within Kawasaki Steel Co., Ltd. (72) Inventor Takao Yumi, 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Prefecture In Kawasaki Steel Co., Ltd. (72) Takashi Ishikawa, 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Prefecture Address Inside Kawasaki Steel Co., Ltd.

Claims (1)

[Claims] 1. A winding device comprising a rewinding machine for rewinding a coil made of a material to be rolled rolled by a rough rolling machine, and a peeler for opening the rewinding end of the coil of the rewinding machine. In the rewinding machine, the rewinding machine includes a pressing roll placed on the top of the coil, and a pressing device that moves the pressing roll in the substantially vertical direction of the coil to press the top of the coil. .