JP3207765B2 - Dummy bar storage 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 strip caster for continuously casting a thin strip (hereinafter referred to as a strip) by a moving wall mold, and a storage device for a dummy bar leading a dummy sheet.

[0002]

2. Description of the Related Art FIGS.
There is something like that shown in 6 and 7, a slide chute 56 is disposed below a twin-drum continuous caster 50 having a mold portion 53 formed by a pair of a cooling drum 51 and a side dam 52, and a tank chute is disposed downstream thereof. Zenial roll 61, transport roll 60, No. 1 pinch roll 62, No. 2 pinch roll 63, shear entry side pinch roll 64a, flying shear 64, coiler entry side pinch roll 66, under guide 67 and over guide 68, dummy bar The storage rolls 70 are arranged in order from the upstream side of the line.

A scrap bag 65 is arranged below the line downstream of the flying shear 64, and a down coiler 69 is arranged below the line downstream of the pinch roll 66 on the coiler entrance side.

[0004] As shown in FIG. 6, the rear end of the dummy sheet 41 is sandwiched between the cooling drums 51 of the twin-drum continuous casting machine 50 and projected to the mold portion 53. No. 1 pinch roll 62 and No. 2
It is set so as to be located between the pinch roll 63 and is connected to the front end of the dummy sheet 41 by a countersunk bolt 43.

[0005] Next, as shown in FIG. 7, a molten metal 31 is poured into a mold portion 53 while rotating a pair of cooling drums 51, and a strip 32 is continuously cast. The slide chute 56 is guided while the welded dummy sheet 41 is guided by the dummy bar 42.
Guided horizontally by the tangential roll 6
1. The sheet is conveyed downstream by the conveying roll 60, the No. 1 pinch roll 62 and the No. 2 pinch roll 63.

When the leading end of the dummy sheet 41 reaches the flying shear 64, the dummy sheet 41 is cut by the flying shear 64 while being fed by the shear-in side pinch roll 64a, and separated from the dummy bar 42.

[0007] The dummy bar 42 is passed between the rolls of the pinch roll 66 on the coiler entrance side and between the under guide 67 and the over guide 68, transported and stored on the dummy bar storage roll 70, and the remaining dummy sheet 41 is removed. In preparation for the start of the next continuous casting of the strip 32.

During this time, the dummy sheet 41 to be conveyed is cut one after another by the flying shear 64 and dropped into the scrap bag 65 from between the conveying rolls 60.

Then, the leading end of the strip 32 from which the welded portion with the dummy sheet 41 has been cut and removed is conveyed downward by the pinch roll 66 on the coiler entry side, and wound up by the down coiler 69 while being guided by the under guide 67 and the over guide 68. .

[0010]

In the above-mentioned conventional apparatus, a dummy bar storage roll 70 is required further downstream of the coiler entry side pinch roll 66 in a range not less than the length of the long dummy bar 42. As the line length increases, the equipment cost of the strip caster increases, and the area occupied by the caster increases.

[0011]

The dummy bar storage device according to the present invention has the following structure to solve the problems.

[0012]

That is, a strip caster in which a thin strip continuous caster, a transport roll, a running cutter, and a winding machine are arranged in this order from the upstream side of the line. A transport roll that operates in the same manner as other transport rolls is disposed, a dummy bar lifting transport device is disposed above the transport roll, and a dummy bar lifting device is disposed below the transport roll.

[0014]

[0015]

[0016]

[0017] [action] Da sets the rear end of the dummy sheet in a thin strip continuous casting machine
Set the meaver on the entry side of the cutting machine while
Connect the front end and the rear end of the dummy bar.

Next, the continuous casting of the strip is started, and when the leading end of the dummy sheet comes to the traveling cutting machine, the dummy bar is cut off from the dummy bar coming on the transport roll that operates in the same manner as the other transport rolls downstream of the strip. While cutting and collecting the sheet, this dummy bar is lifted from the rotating transport roll by the dummy bar lifting machine to prevent the occurrence of abrasion due to slipping of the transport roll with the dummy bar, and the dummy bar is lifted by the dummy bar lifting transporter. Then, the dummy bar lifting machine is lowered below the transport roll. Then, the strip from which the welded portion with the dummy sheet has been cut and removed is transported to a winder by a transport roll, and wound up in a coil shape.

During this time, the dummy bar is transported off-line by the dummy bar lifting transporter and stored to remove the remainder of the dummy sheet and prepare for the start of the next continuous casting of the strip.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a dummy bar storage device according to the present invention will be described in detail with reference to embodiments.

[First Embodiment] FIG. 1 is a side view showing the concept of a strip caster as a first embodiment of the present invention, FIG. 2 is a side view illustrating the operation of a dummy bar storage device, and FIG. It is a side view explaining the next operation.
In these drawings, the same devices and members as those of the conventional device are denoted by the same reference numerals, and redundant description will be omitted.

[Structure] In FIGS. 1 to 3, reference numeral 20 denotes a transport roll provided with a rotation and stop control function separately from the other transport rolls 60, and is disposed downstream of a flying shear 64 as a running cutting machine. ing.

Reference numeral 1 denotes a pair of magnet suspenders, which are suspended from an overhead traveling crane 10 traveling on a girder (rail) 15 above a transport roll 20 so as to be able to move up and down.

Other configurations are the same as those of the conventional device.
Note that a dedicated lifter may be used instead of the overhead traveling crane 10 as the dummy bar lifting transfer device.

[Operation / Effect] As shown in FIG. 1, the rear end of the dummy sheet 41 is sandwiched between the two cooling drums 51 so as to protrude into the mold portion 53. .1 is set so as to be located between the pinch roll 62 and the No. 2 pinch roll 63, and is connected to the leading end of the dummy sheet 41 by the countersunk bolt 43.

Next, as shown in FIG. 2, the molten metal 31 is poured into the mold section 53 while rotating the cooling drum 51 of the twin-drum continuous caster 50 as a continuous strip caster, and the strip 32 is continuously formed. The strip 32 and the dummy sheet 41 welded to the tip are guided horizontally by a slide chute 56 while being guided by a dummy bar 42, and the tangential roll 61 and the transport roll 6 are guided.
0, No. 1 pinch roll 62 and No. 2 pinch roll 63 convey downstream.

When the leading end of the dummy sheet 41 reaches the flying shear 64, the dummy sheet 41 is cut by the flushing shear 64 while being fed by the shear-in side pinch roll 64a, cut off from the dummy bar 42 coming on the transport roll 20, and transported. The dummy sheet 41 is cut into short pieces one after another by a flying shear 64 and dropped into the scrap bag 65 from between the transport rolls 60.

Then, the rotation of the transport roll 20 is stopped, and the dummy bar 42 is attracted by the magnet suspender 1 and lifted by the overhead traveling crane 10.

Next, as shown in FIG.
The strip 32 from which the welded portion with 1 has been cut and removed is transported by the transport roll 20 and the coiler entry side pinch roll 66,
While being guided by the under guide 67 and the over guide 68, it is wound in a coil shape by a down coiler 69 as a winder.

In the meantime, the dummy bar 42 lifted from the transport roll 20 is transported off-line in the plate width direction by the overhead traveling crane 10 and stored, and the countersunk bolt 43 is removed to remove the remainder of the dummy sheet 41, and the strip 32 is removed. Preparing for the start of the next continuous casting.

FIG. 4 is a side view showing the concept of a strip caster according to a second embodiment of the present invention.
FIG. 5 is a side view for explaining the operation of the dummy bar storage device.

[Structure] In FIGS. 4 and 5, the same transport roll 60 as that of the conventional apparatus is disposed downstream of the flying shear 64, and below the transport roll 60, the tip of a rod portion which moves up and down between the transport rolls 60 is provided. The lifting cylinder 2 on which the lifting plate 3 is mounted is disposed.
Other configurations are the same as those of the first embodiment.

[Operation / Effect] As shown in FIG. 4, the dummy sheet 41 and the dummy bar 42 are set between the mold portion 53 and the shear-in side pinch roll 64a and the countersunk bolts 43 as in the first embodiment. connect.

Next, as shown in FIG. 5, the strip 32 continuously cast in the same manner as in the first embodiment and the dummy sheet 41 to which the tip is welded are guided and transported by the dummy bar 42, and the dummy bar 42 passes therethrough. When the leading end of the dummy sheet 41 comes to the flying shear 64, the dummy bar 42 coming on the transport roll 60 downstream of the flying shear 64
And the dummy sheet 41 is cut short and dropped into the scrap bag 65 as in the first embodiment.

When the dummy bar 42 comes on the transport roll 60 downstream of the flying shear 64, the lifting plate 3 is lifted by the lifting cylinder 2 while the transport roll 60 is rotated in the same manner as the other transport rolls 60. The dummy bar 42 is lifted to prevent the occurrence of abrasion due to slippage of the transport roll 60 with the dummy bar, and the lifting plate 3 is lowered when attracted by the magnet hanging tool 1.

Then, similarly to the first embodiment, the strip 32 is lifted by the overhead traveling crane 10, transported off-line, stored and prepared for the next continuous casting of the strip 32.

[0037]

[0038]

[0039]

According to the present invention , a dummy bar lifting machine is disposed below a transport roll downstream of a cutting machine, so that a dummy bar can be lifted from the transport roll without lifting the dummy roll without stopping the transport roll. Lifted by the transporter.

Therefore, the dummy bar is transported downstream of the winding machine.
Since the roll can be omitted, the strip cast
Line length can be shortened,
Area and equipment costs can be reduced. In addition, since the function of independently stopping the transport roll is not required, the control of the transport roll can be simplified.

Since the dummy bar can be lifted by the dummy bar lifting machine before the dummy bar is lifted, it is possible to prevent the occurrence of scratches due to slippage of the transport roll with the dummy bar.

[Brief description of the drawings]

FIG. 1 is a side view showing the concept of a strip caster as a first embodiment of the present invention.

FIG. 2 is a side view illustrating the operation of the dummy bar storage device of FIG. 1;

FIG. 3 is a side view for explaining the next operation of FIG. 2;

FIG. 4 is a side view showing the concept of a strip caster as a second embodiment of the present invention.

FIG. 5 is a side view illustrating the operation of the dummy bar storage device of FIG. 4;

FIG. 6 is a side view showing the concept of a strip caster as an example of a conventional apparatus.

FIG. 7 is a side view showing the storage of the dummy bar of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnet suspending tool 2 Lifting cylinder 3 Lifting plate 10 Overhead traveling crane 20, 60 Conveyance roll 31 Melt 32 Strip 41 Dummy sheet 42 Dummy bar 50 Twin drum continuous casting machine 64 Flying shear 66 Down coiler

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-6-7896 (JP, A) JP-A-7-195155 (JP, A) JP-A-8-276252 (JP, A) JP-A-7-1995 276013 (JP, A) JP-A-6-179052 (JP, A) JP-A 64-33334 (JP, U) JP-A 48-11006 (JP, U) JP-A 64-33335 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B22D 11/08 B22D 11/06 330

Claims (1)

(57) [Claims] 1. A thin strip continuous casting machine in order from an upstream side of a line,
A transport roll, a traveling cutting machine, and a strip caster in which a winding machine is arranged, downstream of the traveling cutting machine,
Arrange a transport roll that operates the same as other transport rolls,
A dummy bar storage device, wherein a dummy bar lifting transfer device is disposed above the transfer roll, and a dummy bar lifting device is disposed below the transfer roll.