JPS597468A - Remover for cut burr - Google Patents

Abstract

PURPOSE:To provide a titled device which is designed to remove surely the cut burrs of an ingot, by shifting a linear cutter by an adequate angle in the moving direction for removing the burrs and setting the same. CONSTITUTION:A cutter 3A in a remover for cut burrs is shifted by a retreat angle alpha from the direction vertical to a moving direction for removing the burrs, and is shifted by a prescribed angle (rake angle beta) from the direction vertical to a pressing direction in such a way that the side end 15 of the cutter 3A in the moving direction for removing the burr is positioned nearer the pressing direction side than the rear side end 16 in the moving direction for removing the burrs, then the cutter is mounted to a tool rest 13. The cutter 3A is moved upward with the rest 13 so that the edge 6 of the cutter 3A is pressed to an ingot 2 under a specified force. Since the cutter 3A is inclined at the rake angle beta, the cutter contacts with the one side end on the bottom surface 4 of the ingot. The cutter 3A and the cutting surface on the surface 4 contact always at a point P irrespectively of the camber, etc. of the ingot 2 in this stage. Since the cutter moves continuously from the point P up to the other end, the cut burrs are removed surely.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cutting burr removal device for removing cutting burr generated at a part of the lower end corner of a cut surface during gas cutting of a slab manufactured by continuous casting, for example, on a conveying roller table. It is.

Slabs manufactured by continuous casting and gas cut are usually cooled to approximately room temperature outside the continuous casting machine.

Scarfing was performed manually or by a scarfing machine, but recently, especially for hot-rolled materials, a method has been adopted in which the slab is charged into a heating furnace immediately after gas cutting. When using this method, in order to prevent rolling defects and an increase in the amount of clogs, conventionally, for example, as shown in FIG. The conveyance of the piece 2 is stopped, and the linear cutter 3 is raised from below one level and is pressed against the lower surface 4 of the slab while moving along this in the direction of conveying the slab, and the cutter 3 is attempted to be removed by the cutter 5. A cutting deburring device is used.

However, since the cutter 6 used in this conventional device is a single object parallel to the support surface of the roller table 1,
As shown in Figure 2, the direction perpendicular to the direction of deburring movement (the slab 2
Even if the cutting edge 6 is set at a predetermined angle (sweeping angle There was a portion that did not adhere tightly to the lower surface 4 of one side, and the cutting burr 5 at the end of the casting side could not be removed. In order to solve this problem, conventionally, as shown in FIG. 3(b), the cutter 30 and the turret (not shown) are divided into multiple parts in the slab width direction, and each cutter 31 can be raised and lowered and tilted. However, this conventional device not only has a complicated structure and is expensive, but also has a structure in which the cutting edge 32 of the cutter 30 follows the lower surface 4 of the slab. The cutting powder is a knife 31
If the cutter 31 gets stuck in the gap, it becomes impossible to raise, lower, or tilt the cutter 31, and maintenance and inspection must be carried out at short intervals.

The present invention was devised to solve the above-mentioned conventional problems, and it is possible to reliably remove cut chips by simply adjusting the setting angle of a single, integral linear blade. The present invention will be described below with reference to the embodiments shown in FIGS. 1, 2, and 3 (0).
One end of the frame 7 is attached to a pedestal 8 via a shaft 9, and the other end has a roller 12 attached to the tip of a lever 11 that can be rotated vertically by an elevating cylinder 10. Reference numeral 013 is a tool rest, which can be tilted upward along the slab conveying direction about the shaft 9 by moving the tip of the lever 11 upward by the cylinder 10. cylinder 14
The tool rest 13 is mounted on the tilting frame 7 so as to be movable in the slab conveying direction, and a cutter 3A is mounted on the upper part of the tool rest 13.

The present invention uses such a cutting deburr removal device, in which the cutter 3 is shifted by a receding angle α from a direction perpendicular to the deburring movement direction (slab conveyance direction), and the side end 1 of the cutter 3A in the deburring movement direction is
5 is located at a predetermined angle (rake angle β) from a direction perpendicular to the pressing direction so that the rear end 16 in the deburring movement direction is located on the pressing direction side.
It is mounted on the tool rest 15 with a shifted position.

In such a configuration, first, the elevating cylinder 10 starts its extension operation in response to a deburring command signal from a slab stopping device (not shown), and the tilting frame 7 is moved to the shaft 9 via the -11 and the roller 12. The cutter 3A rotates around , and moves upward via the tool post 13, thereby pressing the cutting edge 6 of the cutter 3A against the slab 2 stopped on the transport roller table 1 with a constant force. 3A is inclined at the rake angle β, so the lower surface 4 of the slab is
Then, the knife 3A is moved via the tool post 13 by the moving cylinder 14, which starts its extension operation after a certain period of time has elapsed after the input of the deburring command signal.

At this time, since the cutter 3A is given not only a rake angle β but also a receding angle α, the cutter 3A and the lower surface 4 of the slab can be cut regardless of whether or not the slab 2 is warped or bent. Since the end is always in contact with the cut end at one point P, and the contact point P continuously moves from one side of the cut end to the other, there is a cutting paris made by gas cutting at the cut end of the lower surface 4 of the slab. 5 can be reliably removed. Completion of removing the cut plinth 5 can be detected from the end of the stroke of the movable cylinder 14 until the cutter 3 is no longer in contact with the slab 2, so the elevating cylinder 10 starts shortening operation in response to this deburring completion signal. Then, the tilting frame 7 is rotated around the axis 9 in its original position via the lever 11 and I:l-212, and then the shortening operation is started after a certain period of time has elapsed after the input of the paring completion signal. By retracting the tool rest 13 to its original position by the cylinder 14, it becomes ready to perform the cutting burr removal work again.

As described above, the present invention is a cutting parr removal device having a linear blade that can be pressed with a constant force against one surface of a workpiece from which a cutting parser is protruding, and that can be moved along the surface toward the cutting paris. The cutter is set so that it is shifted from a direction perpendicular to the deburring direction of movement, and the front end of the cutter in the deburring direction of movement is located closer to the pressing direction than the rear end of the cutter in the deburring direction of movement. Although it has an extremely simple structure, it has extremely high cutting burr removal performance, and has practical effects such as being able to be immediately applied to existing cutting burr removal equipment.

[Brief explanation of the drawing]

FIG. 1 is a front view of a cutting deburr removal device to which the present invention is applied;
FIG. 2 is a plan view of the cutter and the turret as seen in the direction of arrow A in FIG. 1. Fig. 3 is a front view of the cutter and tool rest viewed in the direction of arrow B in Fig. 1. Fig. 3 (a) and (1)) show different configurations of the conventional one, and Fig. 3 (0) shows a different configuration of the conventional one. The structure of the present invention is shown. 1. Transport four-ra table, 2. Slab, Sk. Linear cutter, 4. Bottom surface of slab, 5. Cutting edge, 6. Blade edge, 7. Tilting frame, 8. Mounting frame. , 9... axis, 10...
・Lifting cylinder. 11.-Lever 12.Q roller, 13..Turret, 1
4...Movement cylinder, 15...Front end of the blade 3A in the deburring direction of movement, 16...Rear end of the blade 3A in the deburring direction of movement,
P... Contact point between cutter 5A and slab 2, α... Receding angle, β
...Rake angle.

Claims (1)

[Claims] This is a cutting burr removal device having a linear blade that can be pressed with a constant force against one surface of a workpiece from which a cutting burr is protruding, and that can be moved along the surface toward the cutting burr, and the blade is moved to remove the burr. The blade is set so that the front end of the blade in the deburring direction is located closer to the pressing direction than the rear end of the blade in the deburring direction. Cutting deburring device.