JP2995903B2 - Metal plate manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a metal plate.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show an example of a conventional metal plate manufacturing facility. In the drawings, reference numeral 1 denotes a transfer device (not shown) from an upstream A side to a downstream B side of a slab transfer line S. A slab that moves intermittently, 2 is a width pressing machine having left and right dies 3, 3 that can approach and separate from each other around the slab transport line S, and 4 is a vertical press roll 5, 5 and a vertical roll 6, 6. A horizontal rolling mill provided on the downstream B side of the slab transport line S with respect to the width press 2; and a metal plate 8 provided on the downstream B side of the metal plate manufacturing line with respect to the horizontal rolling mill 4. 1 shows a winding machine for winding up.

In FIG. 5 and FIG. 6, only one horizontal rolling mill 4 is shown, but a plurality of horizontal rolling mills are actually provided.

Further, the distance between the width press 2 and the horizontal rolling mill 4 is longer than the entire length of the metal plate 8 to be manufactured.

Hereinafter, the manufacturing process of the metal plate 8 will be described.

When the metal plate 8 is manufactured, the slab 1 is intermittently moved from the upstream A side to the downstream B side of the slab transfer line S by a transfer device (not shown). 1 is width-pressed to the same width over the entire length.

Next, the slab 1 (indicated by a two-dot chain line in FIGS. 5 and 6) formed by width reduction over the entire length is sent to a horizontal rolling mill 4 by a conveyor (not shown). Slab 1
Is roll-formed to a predetermined thickness to form a metal plate 8, and the metal plate 8 is wound into a coil shape by a winder 7.

As described above, in the metal plate manufacturing facility shown in FIGS. 5 and 6, the metal plate 8 having the same width is formed from one slab 1.
Has been manufactured.

[0009]

However, in recent years, there has been a demand from consumers for wanting to obtain the metal plates 8 having different width dimensions little by little.

However, in the above-described metal plate manufacturing process,
Since one slab 1 is formed to have the same width over the entire length and then roll-formed to a predetermined thickness, there is a problem that a larger amount of metal plate 8 is manufactured than desired by the user. .

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to produce various kinds of metal plates having different width dimensions in small quantities.

[0012]

In the method of manufacturing a metal sheet according to the present invention , when a slab is sequentially subjected to width reduction from a front end to a rear end by a width press machine, the slab is stretched in the longitudinal direction.
The width dimension is different between the rear end side and the front end side in the required direction.
And then cut at the relevant location
The obtained slabs are sequentially roll-formed by a horizontal rolling mill.

[0013]

[0014]

According to the method for manufacturing a metal plate of the present invention, the lengthwise required
So that the widths at the rear end and
After forming the lab under width reduction, the slab is divided at the relevant location
Then, the separated slabs are sequentially rolled and formed,
Various types of metal plates with different widths are manufactured from slabs.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show an example of equipment for carrying out the method for manufacturing a metal plate according to the present invention. In the drawings, the same reference numerals as those in FIGS. 5 and 6 denote the same parts. I have.

[0017] This equipment mainly includes a slab transfer line S.
A width press having left and right dies 3, 3 that can approach and separate from each other
Machine 2 and shear (cutting machine) 10 having upper and lower blades 9, 9
And upper and lower work rolls 5,5 and upper and lower copy rolls 6,6
Horizontal rolling mill 4 having two rolls for winding metal plate 8
Of the slab transport line S on the upstream A side
And the downstream B side in this order.

Although only one horizontal rolling mill 4 is shown in FIGS. 1 to 4, a plurality of horizontal rolling mills 4 are actually provided.

The distance between the shear 10 and the horizontal rolling mill 4 is longer than the entire length of the metal plate 8 to be manufactured.

When the metal plate 8 is manufactured, the slab 1 is intermittently moved from the upstream A side to the downstream B side of the slab transfer line S by a transfer device (not shown). 1 tip width reduction by molding until longitudinally required position in a predetermined width W ₁ (FIG. 1, FIG. 3
See), then the portion of the upstream A side of the width W width reduction molded part in _one of the slab 1, after having reduced the width reduction margin width press machine 2, a little than the width dimension W ₁ width dimension W ₂ in allowed to width reduction molding (see FIGS. 2 and 4).

Meanwhile, if the rear end portion of the width reduction molded part to the width W ₁ of the slab 1 is close to Shah 10, the width reduction molded part to the width W ₁ of the slab 1 by the shear 10 Is separated and fed to a horizontal rolling mill 4 by a transfer device (not shown), and the horizontal rolling mill 4 roll-forms a portion of the slab 1 that has been reduced in width to a width W ₁ so as to have a predetermined thickness. A metal plate 8 is formed, and the metal plate 8 is wound into a coil shape by a winder 7.

In this embodiment, as described above, the slab 1 is formed into a width W ₁ , W ₂ by width reduction and then separated, so that the slab 1 is formed into a width W ₁ formed by dividing the slab 1 by width reduction. rear end portion of the portion, and the distal end portion of the width W ₂ in the width reduction molded part, deformation due to buckling tends to occur leading and trailing portions of the slab 1 when performing width reduction molding without dividing Does not occur.

If the portion of the slab 1 that has been reduced in width to the width W ₁ is cut off, the width of the slab 1 is reduced to the width W _1.
From the width of the slab 1 to the width dimension W ₂ is cut off by the shear 10 and removed.
Longitudinal to the predetermined position, width reduction molded to the width W ₂ subsequent by the width press machine 2, a width reduction molded part to the width W ₂ of the slab 1 to the horizontal rolling mill 4 after having disconnecting by Shah 10 The slab 1 is rolled and formed into a predetermined thickness and wound up by a winder 11.

Hereinafter, one slab 1 is formed by the above-described procedure.
, Various kinds of metal plates 8 having different width dimensions are manufactured in small quantities.

The method of manufacturing a metal plate according to the present invention is not limited to the above-described embodiment. The method may be applied to a case where the slab is reduced in width over substantially the entire length, and the reduced portion is cut off and roll-formed. Good thing, that the rear end side of the slab is formed by width reduction so that the slab width dimension is narrower than the front end side, that the number of winding machines is appropriately increased, and other within the scope not departing from the gist of the present invention Of course, various changes can be made.

[0026]

As described in the foregoing, in the production how the metal sheet of the present invention, the rear end side in the longitudinal direction desired location
The slab is subjected to width reduction so that the width of the
In addition, the slab is divided at the location, and the slab
Since rolling and forming are performed sequentially, it is possible to manufacture various kinds of metal plates having different width dimensions from one slab, and since the slab is divided after being subjected to width reduction, the case where one slab is subjected to width reduction over the entire length. By comparison, an excellent effect that deformation due to buckling does not occur at the rear end of the slab can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a width reduction of a slab is performed in a method of manufacturing a metal plate according to the present invention.

FIG. 2 is a plan view showing a state in which a slab whose width has been reduced is cut and roll-formed in the method of manufacturing a metal plate according to the present invention.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a side view of FIG. 2;

FIG. 5 is a plan view of an example of a conventional metal plate manufacturing facility.

FIG. 6 is a side view of FIG. 5;

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Bunhei Masuda 1st Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Pref. Ishikawajima-Harima Heavy Industries Co., Ltd. No. 1 Haramachi Ishikawajima-Harima Heavy Industries, Ltd. Yokohama No. 2 Factory (56) References JP-A-1-180705 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B21B 1/02 B21B 15/00

Claims (1)

(57) [Claims] When a slab is successively width-pressed from a front end to a rear end by a width press machine, the slab is stretched in the longitudinal direction.
The width dimension is different between the rear end side and the front end side in the required direction.
And then cut at the relevant location
A method for manufacturing a metal plate, comprising rolling and shaping the slabs sequentially by a horizontal rolling mill.