JPS61103670A - Burr removing device of cut billet - Google Patents

Abstract

PURPOSE:To process a burr by on-line without a person's help, by removing the burr of the peripheral edge part of a cutting surface of a cut billet, on a carrying-out line from a continuous casting machine. CONSTITUTION:A round billet piece 13 which is cut by a gas cutting, etc. is stopped by projecting a cutting surface 13a of the tip in the forward direction from a frame 18, on a carrying-out line from a continuous casting machine, and thereafter, a double edge cutter 15 and a clamp 17 are made to abut on the side face of the round billet piece 13, the round billet piece 13 is moved in the backward direction by pushing the cutting surface 13a by a hydraulic cylinder 26 of the first pusher 21, and a burr 16 of the peripheral edge part of the cutting surface 13a is scraped down by the double edge cutter 15. Subsequently, a cutting surface 13b of the rear end is projected in the backward direction from the frame 18, the round billet piece 13 is stopped, and thereafter, the double edge cutter 15 and the clamp 17 are made to abut again on the side face of the round billet piece 13, the round billet piece 13 is moved in the forward direction by pushing the cutting surface 13b by a hydraulic cylinder 28 of the second pusher 22, and the burr 16 of the peripheral edge part of the cutting surface 13b is scraped down by the double edge cutter 15.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a burr removal device for cut slabs such as 9' billet pieces, and more specifically, to remove burrs from cut slabs from a delivery line from a continuous casting machine. This article relates to a burr removal device that can be used above.

[Prior art and its problems]

As shown in FIG. 4, a slab cast by a continuous casting machine, such as a round billet, passes through pinch rolls 2 that pull out the round billet 1 of the continuous casting machine, and then is cut into a predetermined shape by a gas cutting machine 3. cut to length.

Next, the round billet piece 4 obtained by cutting is carried out from the continuous casting machine by a roller table 5.

In addition, in FIG. 4, 6 is a mold of a continuous casting machine, and 7 is an idle roll.

This gas-cut billet piece 4 has burrs, which are slag produced during cutting, attached to the peripheral edge of the cut surface. Normally, gas cutting is performed using a swing-type scanotar torch, so the barrier is placed at the lower left periphery of the cutting surface 4a or at the lower right periphery, as shown in FIGS. 5(a) and 5(b). Attach to. The barrier is approximately 15-20cm long
The maximum thickness is 15 to 20 threads.

Conventionally, burrs on such gas-cut slabs have been removed manually or by a burr removal device equipped with an end grinder, as described below. (11) Manually deburring Cut slabs at a temperature of approximately 800℃ taken out from a two-continuous casting machine.
After cooling naturally to below ℃, the burrs are removed manually using pearls or other metal fittings. (2) Burr removal using a t7'c burr removal device equipped with an end face grinder: End face removal/yaer 8 and stone 4- of the burr removal equipment as shown in Figure 6.
9, the cut slab 4 placed on the roller table 10
' Align one cut surface of the transfer 11
The cutting surface is transferred to the position of the end face grinder 12, and the burr is removed from one cut surface by the end face grinder 12, and then the same operation is repeated to remove the burr from the other cut surface. In this case, the cut @ cast slab 4' needs to be cooled to about 150°C or less due to the heat resistance of the end face grinder 2, and the removal of burrs is carried out on the cut cast slab outside the conveyor from the continuous casting machine. This is done on a one-sided finishing line.

As described above, conventionally, it has not been possible to remove burrs from cut slabs online on the delivery line from the continuous casting machine.

[Purpose of the invention]

In view of the above-mentioned current situation, the present invention provides an apparatus for removing burrs from cut slabs on-line on a delivery line from a continuous casting machine. With the goal.

[Summary of the invention]

In the burr removal device of the present invention, blades extending in both longitudinal directions of the cut slab come into contact with the side surface of the cut slab placed on a roller table, and are movable toward and away from the side surface of the cut slab. a double-edged cutter, and a cut slab for movably pressing the cut slab by contacting a corresponding side surface of the cut slab opposite to the side surface of the cut slab that the blades of the double-edged cutter contact. By pushing one cut surface of the cut slab with a land that can move forward and backward toward the corresponding side surface, the one cut surface passes at least the blade on the one cut surface side of the double-edged cutter. a first pusher that is movable outwardly from the cut slab for removing cutting burrs on the peripheral edge of the one cut surface; and a first pusher that pushes the other cut surface of the cutting handle piece. By moving the other cutting surface at least past the blade on the other cutting surface side of the double-edged cutter,
The present invention is characterized in that it comprises a second pusher that is movable outward from the cut slab and is a companion for removing cutting burrs on the peripheral edge of the other cut surface.

[Structure of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The burr removal apparatus for cut slabs according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view showing one embodiment of the apparatus of the present invention, and FIG. 2 is a view taken along the line A- in FIG. In Figs. 1 and 2, 13 is a round billet piece cut by gas cutting or the like, 14 is a roller table for carrying out the round billet piece 13 from the continuous casting machine, and 15 is the direction of movement of the round billet piece 13. A double-edged cutter for removing the burr 16 on the periphery of the cut surface 13a at the tip and the burr 16 on the periphery of the cut surface 13b at the rear end in the advancing direction; 17 a clamp for movably holding the round billet piece 13; 18 A frame in which a hydraulic cylinder 19 with a double-edged cutter 15 and a hydraulic cylinder 20 with a clamp 17 are installed; 21 is a first denyard for pressing the cut surface 13a at the tip of the round billet piece 13; 22 is a round billet Piece 13
The O frame 18 is attached to the upper surface of the base frame 23, and the round billet piece 13 is placed on the unloading rhino constituted by the roller table 14. It is installed so that it can be passed through. The round billet piece 13 is stopped with the cut surface 13a at the tip protruding forward from the frame 18. The frame 18 is substantially rectangular in shape and surrounds the round billet piece 13.

The hydraulic rig 19 is attached to the lower left frame side 18a of the frame 18, and the hydraulic cylinder 20 is attached to the upper right frame side 18b.

The double-edged cutter 15 is attached to the tip of the rod of the hydraulic/su/goo 19, and is movable forward and backward relative to the side surface of the round billet piece 13. The double-edged cutter 15 moves forward and comes into contact with the side surface of the round billet piece 13.

In this example, when looking at the round billet piece 13 from the direction toward the cut surface 13a at the tip, the burr 16 is attached to the lower left side of the periphery of the cut surface 13a at the tip and the lower left side of the periphery of the cut surface 13b at the rear end. Therefore, the single double-edged cutter 15 comes into contact with the lower left side surface of the round billet piece 13 when viewed from the above direction.

The double-edged cutter 15 is divided into a plurality of cutter pieces 15a in the circumferential direction of the round billet piece 13 in order to follow the curve of the side surface of the round billet piece 13 in the circumferential direction. Each of the cutter pieces 15a has a blade 15b at its tip extending in the axial direction of the round billet piece 13, as shown in FIG.
, 15c are formed, and the cutter piece 15a is the blade 15.
b, the 1sc side surface is brought into contact with the side surface of the round billet piece 13. The cutter 15a is fitted with a countersunk spring 24 in order to follow and contact unevenness such as a pinch roll mark engraved on the side surface of the round billet piece 13.
A box-shaped cutter frame 24 in which the cutter piece 15a is fixed is attached to the tip of the rod of the hydraulic cylinder 19, and the proximal end of the cutter piece 15a is accommodated in the cutter frame 24 and attached to the spring 24a. Each of the cutter pieces 15a is connected to J30~5 by this counter spring 24g.
It is designed to be 0m + stroke.

The clamp 17 is attached to the tip of the rod of the hydraulic 7-lino goo 20, and is movable forward and backward relative to the side surface of the round billet piece 13. The clamp 17 moves forward and the round billet piece 1
No. 3, the double-edged cutter 15 makes contact with the corresponding side surface opposite to the side surface with which it came into contact.

The clamp 17 is attached to the round billet piece 1 in order to be able to freely press the round billet piece 13 in the axial direction.
It is formed in a structure in which a roller that comes into contact with the side surface of 3 is arranged on a block or the like.

The first pusher 21 is provided ahead of the frame 18 in the blood circulation direction of the round billet piece 13. The first pusher 21 has a cut surface 13 at the tip of the round billet piece 13.
a hydraulic cylinder 25 for pushing a backward in the axial direction;
Attach the hydraulic cylinder 26 to the tip and make the round billet piece 1.
The swing arm 25 is configured to be movable from the front to the outside in the direction of movement of the vehicle. The swing arm 26 has a base axis A within a plane including a line A-A' perpendicular to the paper surface of FIG.
oscillates around the center. The hydraulic cylinder 26 is stopped at a position in front of the cut surface 13a with respect to the round billet piece 13\ which is stopped with the cut surface 13a projected forward from the frame frame 18, and then the hydraulic cylinder 26 pushes out the rod 27 to extend the cut surface 13a.
, and the cutting surface 13a is the cutting surface 13 of the double-edged cutter 15.
The round billet piece 13 is moved in the axial direction until it passes the blade 15b on the a side, and the burr 16 on the peripheral edge of the cut surface 13a is removed from the blade 1.
Peel it off with step 5b. When the removal of the burr 16 on the peripheral edge of the cut surface 13a is completed, the hydraulic cylinder 26 is moved outward as shown by the two-dot chain line in FIG. The structure is basically the same as that of the first desoyer 21 except for the fact that it is provided. Burr 16 on the periphery of the cutting surface 13a at the tip
The round billet piece 13 from which has been removed is cut with a double-edged cutter 15'
After retracting the clamp 17 and the rear end cut surface 13
b is moved to a position where it protrudes from the frame 18, is stopped, and then the double-edged cutter 15 and the clamp 17 are brought into contact. The second pusher 22 includes a hydraulic cylinder 28 for pushing the cut surface 13b at this position forward in the axial direction, and a swing arm 29 having a hydraulic cylinder 28 attached to its tip. swing arm 29
swings about the base axis B in the same plane as the swinger arm 25. The hydraulic cylinder 28 has a cut surface 13b.
The round billet piece 13 is moved in the axial direction by pushing the cutting surface 13b until it passes the blade 15c on the cutting surface 13b side of the double-edged cutter 15, and the burr 16 on the peripheral edge of the cutting surface 13b is removed from the blade 1.
Peel off with 5c. When the removal of the burr 16 on the peripheral edge of the cut surface 13b is completed, the hydraulic cylinder 28 is moved outward as shown by the solid line in FIG.

In the burr removal device configured as described above, the round billet piece 13 cut by gas cutting or the like is stopped on the carry-out line from the continuous casting machine with the cutting surface 13a at the tip protruding forward from the frame 18. After that, double-edged cutter 1
5 and the clamp 17 are brought into contact with the side surface of the round billet piece 13, the cut surface 13a is pushed by the hydraulic cylinder 26 of the first deso 7 gear 21, the round billet piece 13 is moved backward, and cut with the double-edged cutter 15. The burr 16 on the peripheral edge of the surface 13a is peeled off. Next, the round billet piece 13 is stopped by making the rear end cut face 13b protrude rearward from the frame 18, and then the double-edged cutter 15 and the clamp 17 are brought into contact with the side surface of the round billet piece 13 again to cut it. Place surface 13b on the second plate/
The round billet piece 13 is pushed forward by the hydraulic cylinder 28 of the cutter 22, and the cut surface 13 is cut with the double-edged cutter 15.
b Peel off the burr 16 on the periphery. Therefore, the burrs 16 on the peripheral edges of the cut surfaces 13a and 13b of the round billet piece 13 are removed on the delivery line from the continuous casting machine.

〔Effect of the invention〕

According to the burr removal device of the present invention, burrs on the periphery of the cut surface of a cut slab cut by gas cutting or the like can be removed on the line for carrying out the cut slab from a continuous casting machine.

[Brief explanation of drawings]

FIG. 1 is a front view showing one embodiment of the device of the present invention, FIG. 2 is a view taken along the line A-A' in FIG. A front view showing the cutter piece, Fig. 4 is an explanatory diagram showing the flow of the slab cast by the continuous casting machine, and Fig. 5 (a) is a front view showing the part near the cut surface of the gas-cut round billet piece. Figure, Figure 5Φ) is Figure 5(a)
) is a side view seen from the right side, and FIG. 6 is a plan view showing a conventional burr removal device equipped with an end face grinder. In the drawings, 13...round billet piece, 13 a, 13
b... Cutting surface, 14... Roller table, 15... Double-edged cutter, 15a... Cutter piece, 15b, 15c... Blade, 16... Burr, 17... Clamp, 18...・Frame,
19.20, 26.28 ... Hydraulic cylinder, 2
DESCRIPTION OF SYMBOLS 1... 1st deso7 year, 22... 2nd detsu/ya, 23... Base frame, 24... Cutter frame, 24a... Countertop spring, 25. 29... Swing Arm, 27...rod.

Claims (1)

[Claims] a double-edged cutter that can move forward and backward toward the side surface of the cut slab, the blades of which extend in both longitudinal directions of the cut slab come into contact with the side surface of the cut slab placed on a roller table; The blade of the double-edged cutter of the piece moves forward and backward toward the corresponding side surface of the cut slab for movably pressing the cut slab by contacting the corresponding side surface opposite to the side surface that the blade of the double-edged cutter contacts. By pressing the flexible clamp and one cut surface of the cut slab, the one cut surface is moved at least past the blade on the one cut surface side of the double-edged cutter, and the one cut surface is moved. A first pusher, which is movable outward from the cut slab for removing cutting burrs on the peripheral edge of the surface, pushes the other cut surface of the cut slab, so that the other cut surface is A second member movable outwardly from the cut slab for removing cutting burrs on the peripheral edge of the other cutting surface by moving at least past the blade on the other cutting surface side of the double-edged cutter. 1. A burr removal device for cut slabs, characterized by comprising a pusher and a pusher.