JP3446387B2 - Coiler with coil edge heating device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coiler for winding a hot-rolled material (strip) into a coil, and particularly to a coil edge applied to an intermediate coiler for repeatedly winding and paying out during a rolling process. The present invention relates to a coiler with a heating device.

[0002]

2. Description of the Related Art In hot rolling, a slab heated in a heating furnace is roughly rolled, formed into a predetermined thickness, and then transferred to a finish rolling step. In the rough rolling step, reverse rolling is usually performed, and the strip is reciprocated several times on the rolling line to roll it to a predetermined thickness. At that time, since the length of the strip gradually increases as it is rolled, the length of the strip is increased by winding the extended length with an intermediate coiler.

FIG. 8 shows a schematic structure of a conventional rolling facility.
1 is a heating furnace, 2 is a slab heated by the heating furnace, 3 is a first rolling mill, 4 is a second rolling mill, 5 is an intermediate coiler, 6 is a runout table, 7 is a cooling zone, 8 is a final coiler. Yes, 9 is a rough rolling mill. The intermediate coiler 5 is the first
By reversing the strip rolled by the rolling mill 3 and / or the second rolling mill 4 or both and winding it into a coil and discharging it as necessary, the temperature difference in the longitudinal direction of the strip is reduced, and The length of the straight part of the strip is shortened.

[0004]

In the conventional intermediate coiler, since the strip is simply wound up and paid out, heat is radiated from the edge of the coil during the work, and a temperature difference of 60 ° C. or more occurs in the plate width direction. Sometimes,
There are problems that it is difficult to roll and that the strip material and the rolled shape are damaged.

In view of the above circumstances, it is an object of the present invention to provide a coiler with a coil edge heating device which can suppress the heat radiation from the edge of the coil even when the winding and paying out of the strip are repeated.

[0006]

According to a first aspect of the present invention, side plates are provided on both sides of a winding space for winding a hot-rolled material into a coil shape without a core, the side plates regulating the end surface of the winding coil. In the coiler, at least one of the side plates
Covers about half of the coil end face in the longitudinal direction of the rolled material
It consists of a fixed side plate and a movable side plate that covers the other half.
Further, each of the fixed side plate and the movable side plate is provided with a heating device for heating the end surface of the coil.

[0007]

According to a second aspect of the invention, in the coiler with a coil edge heating device according to the first aspect, the movable side plate is connected to the fixed side plate so as to be horizontally rotatable.

A third aspect of the present invention is the coiler with a coil edge heating device according to the first or second aspect , wherein the heating device is a burner.

[0010]

According to the first aspect of the present invention, since the heating device is provided on the side plate that regulates the end face of the winding coil, the coil edge can be heated at any time during winding of the coil, storage, and discharging. The heat radiation from the can be suppressed.

Further, according to the invention of claim 1 , most of the coil edges can be covered by the fixed side plate and the movable side plate, each of which is provided with a heating device, so that the entire coil edge is evenly covered. Heat can be achieved.

According to the second aspect of the invention, by opening the movable side plate to the outside, approximately half of the coil edge can be exposed to the outside. Therefore, the C-shaped hook can be inserted into the central portion of the coil by utilizing the space of the portion facing the outside, and the coil can be lifted as it is and taken out.

According to the third aspect of the present invention, the coil edge can be heated by igniting the burner.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a plan view of the coiler 10 of the embodiment as seen from above, FIG. 2 is a view taken along the line II-II of FIG. 1 so that the overall outline can be seen, and FIG. 3 is a view taken along the line III-III of FIG. It is a figure and the figure which made the main part understandable.

The coiler 10 is capable of winding the strip W without a core (without a mandrel) in the coil winding space 11 and mainly includes rollers arranged on the outer peripheral side of the winding space 11. Take-up mechanism 2
0 and a pair of side plates 12A and 12B, which are arranged on both sides of the winding space 11 and regulate the end face of the coil C when the coil C is wound without a core, and the distance between the side plates 12A and 12B is set to the width of the strip W. It is composed of a stabilizer 30 and the like, which is adjusted accordingly and stabilizes during coil winding. As shown in FIG. 2, the winding mechanism 20 includes a set of three bending rolls 21, 22, and 23 for winding a curl at the tip of the strip W.
And a guide roll 24 for guiding the strip so as to be wound into a coil.

The side plates 12A and 12B have a symmetrical structure, and about half of the strip W in the longitudinal direction is fixed side plate 1.
4, the other half is the movable side plate 15. The entire fixed side plate 14 and movable side plate 15 (= side plate 12)
(A, 12B) is set so as to cover the maximum diameter of the winding coil C, and the coil C in the winding space 11 is provided on the inner surface side of the fixed side plate 14 and the movable side plate 15. A plurality of heating panels (heating devices) 13 for heating the edges are provided. Heating panel 13
Are incorporated in the double wall forming the fixed side plate 14 and the movable side plate 15, and the winding space 11
A plurality of (9 in this example) burners 13a facing the side are provided.

As shown in FIG. 2, the fixed side plate 14 is located on the side where the strip W is introduced so that the end surface of the introduced strip W can be immediately regulated.
The fixed side plate 14 is connected to the stabilizer 30 by a connecting portion 31. The movable side plate 15 has a function of regulation,
It is provided for the purpose of covering the end surface of the coil C.

The movable side plate 15 is arranged adjacent to the fixed side plate 14, and is connected to the fixed side plate 15 by hinges 16 and 17 so as to be rotatable outward in the horizontal direction. The positions of the hinges 16 and 17 in this case are such that, when the movable side plate 15 is opened as shown in FIGS. 4 and 5, a large space can be opened at the position where the movable side plate 15 has been. is there. That is, the fixed side plate 1 is attached to the outer surface of the movable side plate 15.
The hinge arms 16a and 17a extending in the direction of 4 are provided, and the hinges 16 and 17 are provided at the tips thereof. Also,
A cylinder 18 for opening and closing the movable side plate 15 is provided between the movable side plate 15 and the fixed side plate 14 which constitute the side plate 12A on one side. Cylinder 18
Has a base end fixed to the fixed side plate 14 and a rod tip fixed to the bracket of the movable side plate 15.

According to this coiler 10, the side plates 12A,
Since the heating panel 13 is incorporated in the 12B, the coil edge can be heated by sending the combustion gas to the burner 13a and igniting at any time during winding or paying out of the coil C, and the heat radiation from the edge is suppressed. be able to. Particularly, the fixed side plate 14 and the movable side plate 15 are provided so as to cover substantially the entire edge of the coil C, and the heating panel 13 provided on each side heats the coil edge. Can be realized. Moreover, since the burner 13a heats, the coil edge can be efficiently heated in a short time. Therefore, even if the strip W is repeatedly wound and paid out, the heat radiation from the coil edge can be suppressed, the increase in the temperature difference in the plate width direction can be suppressed, and the deterioration of the material of the rolled material can be avoided. Moreover, since it is the structure which only adds a heating panel to side plate 12A, 12B with which a coreless coiler is equipped especially, it is easy to implement.

Further, as shown in FIG. 6, by opening the movable side plate 15 to the outside, about half of one side of the coil edge can be exposed to the outside, so that the space of the part facing the outside can be used. Then, the C-shaped hook 50 can be inserted into the center of the coil C, and as shown in FIG.
The coil C can be lifted and taken out.

The heating system for the heating panel 13 is not limited to the burner system in which the combustion gas is fed and ignited to heat the flame, as in the above-described embodiment, and various types can be adopted. . For example, Cr, Al, Y
A heat-generating surface is made of a porous material (porosity 85%) obtained by sintering heat-resistant alloy fibers such as a matte material, and a combustible premixed gas is sent to the heat-generating surface to ignite the heat-generating surface in a short time. A method of raising the temperature and heating the edge surface of the coil by the radiant heat of the heating surface, or an electrothermal method using a metal such as Ni-Cr may be adopted.

[0022]

As described above, according to the invention of claim 1, the coil edge can be heated at any time during winding of the coil, storage, and paying out. Therefore, winding of the hot rolled material is possible. Even if the payout is repeated, the heat radiation from the coil edge can be suppressed. Therefore, it is possible to suppress the increase of the temperature difference in the plate width direction and to avoid the deterioration of the quality of the rolled material. Further, since the heating device is simply added to the side plate provided in the coreless coiler, it is easy to realize and the cost is low.

Further, according to the invention of claim 1 , since most of the coil edge surface is covered with the side plate and the edge can be heated by the heating device provided on the side plate, the entire surface of the edge is soaked even during coil storage. Can be planned.

According to the second aspect of the present invention, since the side plate can be partially opened and closed, the coil can be taken out easily.

According to the third aspect of the invention, since the heating is performed by the burner, the coil edge can be efficiently heated in a short time.

[Brief description of drawings]

FIG. 1 is a schematic plan view of an embodiment of the present invention.

FIG. 2 is a view taken along the line II-II of FIG.

FIG. 3 is a view on arrow III-III in FIG. 1.

FIG. 4 is a view taken along the line IV-IV in FIG.

5 is a view taken along the line VV of FIG.

6 is a plan view showing a state in which a movable side plate shown in FIG. 1 is opened.

FIG. 7 is a side cross-sectional view showing a state where the coil is lifted.

FIG. 8 is a schematic configuration diagram of a conventional rolling facility.

[Explanation of symbols]

10 coilers 11 winding space 12A, 12B side plate 13 Heating panel (heating device) 13a burner 14 Fixed side plate 15 Movable side plate W strip (hot rolled material) C coil

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B21C 45/00-49/00 B21B 39/14 B21B 45/00

Claims (3)

(57) [Claims] 1. A coiler in which a side plate for regulating an end face of a winding coil is provided on both sides of a winding space for winding a hot-rolled material into a coil shape without a core , and at least one of the side plates is provided. Is the rolling material longitudinal direction
Fixed side plate that covers about half of the coil end surface in
And a movable side plate that covers about half of the
And a coiler with a coil edge heating device , wherein each of the movable side plates is provided with a heating device for heating the end face of the coil. 2. The movable side plate is horizontally aligned with the fixed side plate.
The coiler with a coil edge heating device according to claim 1, wherein the coiler is rotatably connected . 3. The heating device comprises a burner.
A coiler with a coil edge heating device according to claim 1 or 2 .