JPH1024354A - Device for cutting off cast slab in continuous casting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unnecessitate a slab marker device at a fixed position in downstream side of a cast slab cutting-off device by mounting the slab marking device on a cast slab cutting-off device itself so as to be followable to the cast slab during cutting off and conveying. SOLUTION: Even in such condition that the cast slab 13 cut off in a prescribed size with a torch 2 is conveyed to the downstream side at a prescribed conveying speed immediately after cutting off, a printing head 8 of the slab marker 20 is quickly shifted to a print starting position from the waiting position as the starting point by the combining movements of a following frame 16, traversing device 6 and elevating/lowering arm 7. Successively, such one series movement as to inject an injecting ink 9 while selecting characteristics to the cutting-off surface (printing surface) 5 while synchronizely following the cast slab 13 during conveying and return back to the waiting position after printing the characteristics 10 of the cast slab, can be repeated to each cast slab, in order.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a slab cutting device for a continuous casting facility.

[0002]

2. Description of the Related Art FIG. 2 is a side view showing an outline of a conventional slab cutting device of a continuous casting facility. As shown in FIG. 2, in the continuous casting facility, the mold 12 is provided at the upstream end in the casting direction 18.
The slabs 13 and 14 are obtained by continuously supplying molten steel to the casting and cutting the continuously cast slab 1 into predetermined dimensions at the downstream end.

[0003] As a method of cutting the slab 1 into slabs of a predetermined size, as shown in the schematic explanatory view of FIG.
For example, a gas fusing method in which a high-temperature gas flame 4 such as an oxygen-propane flame or the like is sprayed and blown inward from both side ends of the slab 1 along the direction of arrow 3 is widely used. The torch 2 is generally mounted on a torch moving machine 11 which can move forward in synchronism with the casting speed and retreat at a desired speed. This is called a one-side cutting device 21.

In many continuous casting facilities, as shown in FIG. 2, after being cut, the slab is conveyed downstream by conveying rollers 15 in order to smoothly manage the slab in the next hot rolling step. The slab 14 is provided with a slab marking device (slab marker) 20 for printing a slab code on the cut surface 5 at the downstream fixed position. Slab marker 20
For example, as shown in a schematic side view in FIG. 4 (a) and an AA arrow view in FIG. 4 (b), the frame frame 19 is mounted on a frame 19 installed horizontally so as to straddle the width of the slab 14 being conveyed. A traversing device 6 movable along the traversing device 19; a lifting arm 7 suspended from the traversing device 6 so as to be able to move up and down; And a print head 8 for printing the code 10.

The XY position at the print start position 17 shown in FIG.
The print information such as the coordinates (a, b) and the slab code 10 is grasped for each slab by an upper-level computer (not shown), and is sent to the slab marker 20 as needed. The slab marker 20 receives this print information and 6. Using the lifting arm 7, move the print head 8 to the print start position 17 and select a character (dot character) from there as a starting point until the end of the slab code 10 is printed ⇒ jet ink 9 ⇒ shift one character Is configured to be repeated.

[0006]

As shown in FIG. 2,
The conventional slab marker 20 is provided at a fixed position on the transport line. Therefore, the slab marker is located downstream of the slab cutting device.
It was necessary to separately provide a dedicated foundation and frame for 20. Also,
In the course of transporting the slab 14, the marking must be performed by temporarily stopping the slab 14 at the fixed position. Therefore, a stop control device for the transport roller 15 is required. Furthermore, in order to compensate for the decrease in production efficiency of the continuous casting equipment due to the extension of the slab transfer time due to the stop time, the transfer table for arranging the transfer rollers 15 and rotating them has also been required to adopt a higher-speed rotation specification. I was

[0007] That is, the conventional slab cutting device of the continuous casting equipment requires a long slab transfer line because a special slab marker 20 must be installed at a fixed position downstream of the slab marker. In order to improve the supply efficiency of slabs to the slab, it is necessary to enhance the functions of the machine and control system, such as increasing the rotation speed of the transfer rollers and controlling the stop, and thus there is a problem that excessive construction costs are required.

Accordingly, an object of the present invention is to provide a slab cutting apparatus for a continuous casting facility which does not require the installation of a slab marker at a fixed position downstream.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a slab marking device for continuous casting equipment, which comprises a slab marking device for printing a slab code on a cut surface of a slab which is a cut slab. A slab cutting device for a continuous casting facility, wherein the slab is mounted so as to follow the slab that is coming.

[0010]

According to the present invention, a slab marking device (slab marker) is mounted on a slab cutting device itself so as to be able to follow a slab that is being cut and conveyed. The above-mentioned problem of the prior art is eliminated because the slab marker does not need to be permanently installed and the slab does not need to be stopped for marking during the transportation.

[0011]

1 is a plan view and FIG. 1B is a side view of an embodiment of the present invention. In FIG. 1, 1 is a cast piece, 2 is a torch, 5 is a cut surface (print surface) of the slab 13, 6
Is a traversing device, 7 is a lifting arm, 8 is a print head, 9 is a jet ink, 10 is a slab code, 11 is a torch moving machine, 13 is a slab immediately after cutting, 16 is a following frame, and 18 is an arrow indicating the direction of casting. , 20 is a slab marking device (slab marker), and 21 is a slab cutting device.

In this embodiment, the traversing device 6 of the slab marker 20 is movably engaged along the middle side of the U-shaped follow-up frame 16, and both ends of the U-shaped follow-up frame 16 are cast into slabs. The cutting device 21 is slidably supported on both sides of the torch moving machine 11, and the torch moving machine 11 has the middle side of the U-shaped following frame 16 supported by the torch moving machine 11 to track the slab 13 from the standby position. In order to return to the standby position after the completion of the predetermined marking process, a follow-up driving device (not shown) is provided which can move both sides of the U-shaped follow-up frame 16 forward and backward by, for example, a rack and pinion mechanism. The operation of the following drive device can be controlled by a command from a host computer (not shown) or a transport roller drive control device.

When viewed from the side of the slab marker 20, the frame with which the traversing device 6 is engaged is replaced with a conventional frame 19 (see FIG. 4) as a follow-up frame 16, and conventionally, as shown in FIG. In addition to the “fixed position” of the print start position 17 specified by the XY coordinates (a, b) at the fixed position,
A Z coordinate value (or a print start timing corresponding thereto) along the casting direction 18 is set as the equal interval tracking start position.

Since the slab cutting device 21 of the present embodiment is configured as described above, the slab (slab 13) cut to a predetermined size by the torch 2 is conveyed downstream at a predetermined conveyance speed immediately after cutting. Even under the circumstances, the print head 8 of the slab marker 20 starts from the standby position,
The traversing device 6 and the raising / lowering arm 7 move quickly to the printing start position due to the combined operation, and continuously follow the slab 13 being conveyed synchronously while selecting a character on the cut surface (printing surface) 5 while selecting the ink. Inject the slab code 10
Can be sequentially repeated for each slab.

[0015]

According to the present invention, the slab marking device (slab marker) is mounted on the slab cutting device itself so as to be able to follow the slab being cut and conveyed. There is no need to install a slab marker at a fixed position downstream, and there is no need to stop the slab for marking in the middle of transport. (1) Reduction of basic cost dedicated to slab marker, (2) Reduction of frame dedicated to slab marker, (3)
The exclusive slab stop control is not required, and (4) the excellent effect of suppressing the remodeling by increasing the speed of the transport rollers to ensure the productivity of the continuous casting equipment.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing an embodiment (a) of the present invention;
(B) is a side view.

FIG. 2 is a side view showing an outline of a slab cutting device of a conventional continuous casting facility.

FIG. 3 is a schematic explanatory view of a gas cutting method.

4A is a schematic side view of a conventional slab marking apparatus, and FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cast piece 2 torch 3 arrow indicating direction of gas cutting 4 gas flame 5 cutting surface (printing surface) 6 traversing device 7 lifting arm 8 print head 9 jetting ink 10 slab code 11 torch moving machine 12 mold 13 slab (immediately after cutting) 14 Slab (stop during transport) 15 Roller for transport 16 Following frame 18 Arrow indicating casting direction 19 Frame 20 Slab marking device (Slab marker) 21 Slab cutting device

Claims (1)

[Claims] 1. A slab cutting device for a continuous casting facility,
A slab marking device for printing the slab code on the cut surface of the cut slab, which is a cut slab, is mounted so that it can follow the slab being cut and conveyed. One-sided cutting device.