JPS586758A - Method and device for removing gas cutting slag of slab - Google Patents

Abstract

PURPOSE:To remove the slag at the leading and trailing ends of an ingot easily and surely by the movement in one direction alone by locating the slag at the cut surface of the ingot to face upward, placing a blade thereon, rotating and moving the blade and scrapping off the slag. CONSTITUTION:Slag N is stuck and left on the bottom end on the cut surface of a continuously cast ingot S, and the ingot S is rotated with a manipulator or the like so that the slag N is located up. A blade 1 of a length longer than the width of the ingot is pressed onto the ingot roughly in parallel with the slag N, and the blade 1 is rotated and moved to scrape off the slag N on a roller table T. The slag N is cut away gradually from one end to the other. When the slag N at the leading end is cut away, the ingot S is moved in the advance direction and the slag at the trailing end of the ingot is removed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and an apparatus for removing a slab such as a continuously cast slab by gas cutting.

As shown in FIG. 1, as a conventional O filter removal method of Mekono, a cutter 10 is installed between the roller and p-ra of a roller table, and a cutter 10 is attached to the lower surface of the slab S by a fluid pressure cylinder 1l.
There is a method of removing the sluggish N of the slab S being conveyed by pressing the 0.

However, in this removal method, the slab is removed while moving the slab, so in order to remove the O slots at both ends of the slab, the slab must be moved in two directions: forward and backward. . Furthermore, since it is necessary to determine the advancing and receding positions of the bales based on the length of the slab, it is extremely difficult to draw.

This invention was proposed in view of these circumstances.
The purpose is to provide a removal method that can easily and reliably remove debris by only moving in one direction, and a removal device that can perform such removal with a relatively simple configuration.

The glue removal method according to the present invention involves turning the hook so that the glue at the end of the slab is positioned above, placing a cutter on the upper surface of the end of the slab, and moving the cutter. This device scrapes off the slug on the conveyance path and easily and reliably removes the slug by only moving in one direction.

The removing device according to the present invention has a swinging arm whose base end is pivoted on any side of the conveyance path, and on the upper surface of the slab on the conveyance path! A long blade capable of single contact is provided, and a drive mechanism capable of swinging this arm is connected to the base part of the swinging arm, so that the removal of glue can be performed with a relatively simple mechanism. .

The present invention will be described below based on an illustrated embodiment.

As shown in Fig. 2, the lathe N remains attached to the lower end of the cut surface of the continuously cast slab S, and as shown in Fig. 3, the slab S is Rotate the manipulator etc.

Next, as shown in Fig. 5, a long cutter 1 longer than the width of the slab is pressed against the upper surface of the tip of the slab so that it is almost parallel to the slot N, and this knife 1 is rotated. He lost 11 times against Slow N on the adventure table T. Slow N will be cut gradually from one end to the other.

After the tip of the slab is MR-shielded, the slab S is moved in the advancing direction, and the rear end of the slab is smoothed as shown in 6th WA. This am's handle is located at 0 at the tip.

Next, such a slow scattering device will be explained. 1
14wJ-As shown in FIG. 6, a swinging arm 2 is installed horizontally on a roller table T, and the base end of this swinging arm 2 is attached to a shaft 3 fixed to the roller table T1!110,000.
It is attached to and can swing freely. A long cutting tool l longer than the width of the slab is attached to such a swinging arm 2.
Pressing cylinders 4 and 5 are connected to both ends of this cutter 10. The pressing cylinders 4 and 5 move the knife l up and down,
The cutter L is pressed against the slab S, and it is possible to respond to changes in slab thickness. Furthermore, it is designed to cope with wear and tear on the cutter l.

The drive mechanism that drives the swing arm 2 includes a driven gear 6 that is concentric with the shaft 3 connected to the lower part of the base end of the swing arm 2, a drive gear 7 that meshes with the driven gear 6, and a drive gear 7 that drives the drive gear 7. It consists of a drive device 8 such as an electric motor, a hydraulic motor, and a hydraulic swing cylinder.

Further, the drive mechanism is not limited to this, and may be a hydraulic cylinder and a hook/binion or a link mechanism.

Alternatively, the swing arm 2 may be moved up and down by a hydraulic cylinder or the like to accommodate large changes in the thickness of the slab S. In this case, it is necessary to increase the tooth width of the driven gear 60 by the amount of the vertical stroke.

Furthermore, in this case, the pressing force generated by the pressing cylinders 4 and 50 should be approximately 1/2 of that of the arm lifting cylinder, and if more force is applied, a crevice installed in the pressing side hydraulic circuit of the pressing cylinders 4 and 8 will be used. Pressure oil leaks from the valve (KJlj)
, the cutter 1 and the slab S are automatically brought into close contact with each other so that there is no residue left behind.

First, the cutter 1 may be an ordinary shear blade or the like, and even a used shear can be sufficiently removed.

In the removing device having such a configuration, the slugs at the leading and trailing ends of the slab 8 can be easily removed with a small driving force by simply changing the direction of swing. The removal method has the following effects.

■ Place a cutter on the upper surface of the end of the slab with the groove of the cut surface of the slab facing upward, and move the blade simultaneously to scrape the groove and round the slab, and cast by moving in only one direction. the tip of the piece,
The lag at the rear end can be easily and reliably removed.

- Since the removal is carried out on the upper surface, there is no space constraint for installing the equipment of the table rosin type, so the rotational movement of the cutter can be increased, and the stopping precision of the slab can be coarse.

■ You can easily check the status of removal.

Next, since the glue removing device according to the present invention has the above-described configuration, it has the following effects.

(2) It is possible to easily remove the adhesive from the leading and trailing ends of slabs using a device with a relatively simple configuration.

■ Since it is located above the slab, there is no need for scale protection equipment), making maintenance easy.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing a conventional method for removing slabs; Figs. 2 and 3 are perspective views showing turning of slabs; FIG. 6 is a plan view showing the state of the slotting at the front end and rear end of the slab. 1...Cutter, 2...Swinging arm, 3...Axis, 4
, 5 ass pressing cylinder, 6... driven gear, 7...
・Drive gear, 8... Drive device, lO... Cutler, 11
...Fluid pressure cylinder 0 Patent applicant Sumitomo Metal Industries Co., Ltd. Agent Introduction Knowledge Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (2)

[Claims] (1) When cutting the slab with gas, turn the slab so that the adhesive remaining on the lower layer after cutting is positioned above, and use a cutting tool to hit the upper surface of the end of the slab. A method for removing gas cutting slag from a slab, which is characterized by scraping off slag. (2) A swing arm whose base end is pivoted on the side of the transport path is provided with a long blade capable of touching the upper surface of the slab on the transport path, and this arm is attached to the base end of the swing arm. 1. A slab O gas cutting/removal device, characterized in that it is connected to a drive mechanism capable of swinging.