JP3354246B2 - Winding and rewinding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to a winding apparatus for use in hot rolling equipment for rolling continuously sheet bars or slabs, etc., in particular a winding having a peeler to open mouth coil rewinding end Related to the device .

[0002]

2. Description of the Related Art Conventionally, in a hot rolling equipment for continuously rolling a material to be rolled such as a sheet bar or a slab, a material to be rolled is rough-rolled and finish-rolled one by one to a desired thickness. Had been rolled into a plate. However, in this case, the line is stopped due to poor biting of the material to be rolled in the finish rolling mill, and the yield is reduced due to a defective shape of the leading and trailing ends of the material to be rolled.

For this reason, the material to be rolled by the rough rolling mill is once wound up by a winding device and unwound, and then the rear end of the material to be rolled and the front end of the material to be rolled are removed. A rolling method of continuously supplying and rolling to a finishing mill has been adopted.

A conventional equipment as such a hot rolling equipment will be described with reference to FIG. In the figure, reference numeral 1 denotes a rough rolling machine for rolling a slab or the like having a thickness of about 200 mm to a thickness of about 30 to 50 mm. 2 is a winding device that winds up the material 5 to be rolled having a size of about 30 to 50 mm by the rough rolling mill 1 and then rewinds it.
Reference numeral 3 denotes a joining device that joins the rear end of the material 5 to be rolled and the front end of the material 5 to be rolled, and continuously supplies the finishing roll 4 downstream. The finishing mill 4 rolls the material to be rolled to a thickness of several mm.

[0005] The winding device 2 comprises a winding and rewinding machine 2a for forming a coil by bending the material 5 to be rolled and also for rewinding, and a rewinding machine 2b for only rewinding the wound coil. A plurality of unwinders 2b are provided to continuously supply the material 5 to be rolled to the finish rolling mill 4.

FIG. 3 shows a rewinding end opener (hereinafter referred to as a peeler) which is provided in the rewinding machine 2a and the rewinding machine 2b of the winding device 2 and takes out the rewinding end of the coil 11. . The rewinding machine 2b includes a cradle roll 12 for rotating a coil 11. Coil 1
In order to unwind 1, an arm with a beak-shaped tip fitting 13 of a bird from which the unwind end is taken out is pressed against the coil,
While rotating the coil 11 on the cradle roll 12,
The unwind end is pulled out of the coil 11.

The main part of the peeler 14 includes an arc-shaped tip arm 15 having a beak-shaped tip fitting 13 at one end,
It is composed of an L-shaped base arm 16 which is pin-connected at one end to the other end of the tip arm 15 and whose other end is rotatably supported. The cylinder 17 for the tip arm has a cylinder portion supported by the base arm 16 and the tip of the rod
The tip arm 15 is rotated to press the tip fitting 13 against the outer periphery of the coil 11. The base arm cylinder 18 rotates the base arm 16 and the distal arm 15
To the vicinity of the coil 11.

[0008]

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

[0009] The present invention has been made in view of the above problems, the thickness of the coil is thick, also provides a winding unwinding device capable of withdrawing the end unwound surely even a small weight of the coil The purpose is to.

[0010] In order to achieve the above object, the present invention provides a rewinding machine for rewinding a coil made of a material to be rolled by a rough rolling mill, and a rewinding end of the coil of the rewinding machine. the winding rewinding device including a peeler that, the rewinding machine, a presser roll for pressing the top of the coil, presser moves the roll substantially vertical direction of the coil, the coil
The frictional force generated on the contact surface between
And a pressing device for pressing so as to be larger than the frictional resistance force at the time .

[0011]

The coil placed on the rewinding machine is pressed almost vertically at the top by the pressing roll pressed by the pressing device. This pressing force is added to the weight of the coil, and a frictional force is generated between the roller and the roll supporting the coil. By making this frictional force greater than the resistance applied from the rewinding end unloader, the coil rotates overcoming the resistance, so that the unwinding end of the coil can be taken out by the rewinding end unloading machine.

[0012]

Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the configuration of the present embodiment. 3 denote the same components. The winding / unwinding machine or the unwinding machine includes a cradle roll 12 which rotates with the coil 11 mounted thereon. The cradle roll 12 includes a rotation mechanism, a swing mechanism and the like, and smoothly rotates the coil 11. The coil holding device is a pressing device 21 and a holding roll 2
6 and is attached to the peeler 14. The pressing device 21 includes a pressing cylinder 22 and a roll support arm 24.
It is composed of The pressing cylinder 22 is rotatably supported by a base arm 16 with a pin, and is pin-connected to a roll support arm 24 by a rod fitting 23 attached to the rod tip. The roll support arm 24 is pin-connected at one end to the tip arm 15 and pin-connected to the holding roll 26 at the other end. The holding roll 26 is composed of two rolls 27
And a triangular roll support member 28 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 at the top by pins.

Next, the operation will be described. When the coil 11 is placed on the cradle roll 12, the base arm 16 is rotated by the base arm cylinder 18, and the tip of the arm approaches the outer periphery of the coil 11. Next, the tip arm cylinder 17 is driven to rotate the tip arm 15, and the tip fitting 1 is rotated.
3 is pressed against the outer periphery of the coil 11. Subsequently, by driving the pressing cylinder 22, the roll support arm 24 is rotated to press the roll 27 against the top of the coil 11. When the cradle roll 12 is rotated in this state, the coil 11
When the rewind end of the coil 11 comes to the position of the tip fitting 13, the rewind end is separated from the coil 11 by the tip fitting 13. Thereby, the rewind end can be pulled out. In this case, in order for the coil 11 to rotate overcoming the resistance force generated in the tip metal fitting 13, the frictional force generated on the contact surface between the coil 11 and the cradle roll 12 by the added value of the weight of the coil 11 and the pressing force of the roll 27. The pressing cylinder 22 is set so that
It is necessary to set the pressing force.

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. However, 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 is pressed by providing the coil pressing device including the pressing roll and the pressing device in the rewinding machine. Even in the case of a thick coil or a thick coil, the rewind end of the coil can be pulled out by the rewind end extracting machine. This expands the range of steel plates for which the winding device can be used.

[Brief description of the drawings]

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

FIG. 2 is a diagram illustrating an example of a hot rolling facility in which a winding device is installed between a rough rolling mill and a finishing rolling mill.

FIG. 3 is a diagram showing a configuration of a rewind end take-out machine for taking out a rewind end of a coil.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rough rolling machine 2 Winding device 2a Winding / unwinding device 2b Unwinding 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 support

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Keigo Murakami 1st Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishikawajima-Harima Heavy Industries Co., Ltd. 1 Kawasaki-cho, Kawasaki Steel Works, Ltd. Incorporated (56) References: Japanese Utility Model, Sho 61-172605 (JP, U) Japanese Utility Model, Hei 3-27690 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B21C 47/34 B21C 47/22 B65H 19/10

Claims (1)

(57) [Claims] And 1. A rough rolling mill uncoiler for rewinding a coil made of the rolled material which has been rolled by the winding wound with a peeler to open mouth unwinding end of the coil of the winding back machine in return instrumentation <br/> location, the rewinding machine, a press <br/> even roll for pressing the top of the coil, presser moves the roll substantially vertical direction of the coil, the contact surface of the coil and the cradle rolls Occur in
Winding the winding, characterized in that a pressing device for pressing the <br/> frictional resistance than larger as time returning frictional force wound that
Return device.