JPS61132249A - Roll stand for continuous casting machine - Google Patents

Abstract

PURPOSE:To provide a titled roll stand which permits easy attachment and detachment of a movable type frame by disposing the roll array of a stationary side supporting frame with the deviation by as much as one pitch of the rolls in the arranging direction of the rolls with respect to the roll array of the movable side supporting frame facing said frame. CONSTITUTION:The rolls 6a, 6g, 8 of the stationary side supporting frame 4 of the above-mentioned roll stand are deviated in the arranging direction of the rolls by as much as the distance corresponding to one pitch of the rolls from the rolls 6a-6g, 9 of the movable side supporting frame 4' as shown in the figure. The frames 4' of the adjacent roll stands 11 are raised in the case of taking out the middle roll stand 10 in the continuous casting installation juxtaposed tightly with the plural roll stands constituted in the above-mentioned manner in the guide direction of the ingot. The taking-out of the stand 10 in the direction which is not perpendicular to an ingot grasping surface 12 and has some as angle of inclination in certain range is thus made possible without striking the same against the adjacent stands on both sides and the taking out operation is made extremely easy.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roll stand for a continuous casting machine, and more specifically to a roll stand for guiding slabs continuously produced in continuous casting equipment under pressure between a plurality of pairs of rolls. .

As shown in the front view of FIG. 3, this type of roll stand includes a fixed support frame 4 to which the machine frame (not shown) is fixed to the VC, and a telescopic actuator, such as a hydraulic cylinder device 5, to the fixed support frame 4. Can be raised and lowered via (supported t'Lf
c Movable side support frame 4' and both frames 4.4'IC
It has a plurality of pairs of rolls 1 and 1' rotatably supported by bearings 3 so as to face each other, and a slab 7 is sandwiched between the pairs of rolls 1 and 1'. ,
By operating the hydraulic cylinder device 5, the roll pairs 1, 1'
The slab 7 is continuously fed out while being pressed. In such a conventional roll stand, as shown in the side view of Fig. 4, a plurality of rolls are cast in the same number on the support frames 4.4JC on the fixed side and movable side, and all in pairs above and below. They are arranged facing each other perpendicularly to the longitudinal direction of the slab 7, and thus have a structure that is generally symmetrical with respect to the center plane (slab clamping surface) of the clamped slab 7 as a whole. In continuous casting equipment, it is common to install a plurality of roll stands as shown in Figure 4 in close rows along the slab guide direction, and roll stands in the middle can be removed from the machine frame for inspection, repair, etc. It may be moved. In this case, in the conventional roll stand shown in FIG. 4, the direction of removal movement is restricted to the direction perpendicular to the slab clamping surface in order to avoid interference with adjacent roll stands.

Therefore, complicated and large-scale removal equipment is required that has the function of lifting the roll stand and the function of moving the roll stand in a direction different from the lifting direction after lifting.

The present invention eliminates the above-mentioned conventional problems, and provides a roll stand for a continuous casting machine that can be easily attached and removed even when a plurality of slabs are arranged in close rows to continuously hold and guide slabs. The purpose is to provide.

The roll stand according to the present invention includes a fixed side support frame and a movable side support frame supported by the fixed side support frame so as to be able to rise and fall via a telescopic actuation device, each of which rotatably supports a plurality of pairs of rolls that are assembled with each other. Then, remove the roll of the movable support frame that faces the roll supported on the outermost side in the roll arrangement direction of one of the fixed side support frames, and at the same time remove the roll supported on the outermost side of the movable side support frame in the roll arrangement direction. The rolls on the fixed side support frame that face the supported rolls are removed, so that both ends of the roll stand in the roll arrangement direction (longitudinal direction of the slab) as a whole are inclined with respect to the slab clamping surface. It is.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a roll stand for a continuous casting machine according to an embodiment of the present invention, in which a fixed side support frame 4 and a movable side support frame 4' each have fL7 pairs of rolls 5a,
5b, . . . 6g are pivotally supported along the longitudinal direction of the slab 7 so as to face each other. Adjacent to the pair of rolls 6a and 6g IC at both ends located at the outermost side in the roll arrangement direction, a single fixed roll 8 is rotatably supported on one side of the fixed support frame on the outside thereof, and a movable support frame A single movable roll 9 is also rotatably supported on one side of the roll 4' (opposite to the fixed roll 8).

The roll facing the fixed roll 8VC is not provided on the movable support frame 4', and similarly the roll facing the movable roll 9 is not provided on the fixed support frame 4, so both support frames 4.4' are the movable rolls 9. It does not extend to a position facing the fixed roll 8. The fixed-side support frame 4 and the movable-side support frame 4' including the pair of rolls are offset from each other in the roll arrangement direction by a distance corresponding to one pitch of the plurality of rolls. Note that 5 in FIG. 1 is a telescopic actuating device such as the same hydraulic cylinder device as explained in FIG. are respectively pivoted to
Due to the operation of the cylinder device 5, the movable side support frame 4'
approaches and moves away from that on the fixed side.

In continuous casting equipment in which a plurality of roll stands with such a configuration are arranged closely in the direction of guiding the slab, when taking out an intermediate roll stand, as shown in Fig. 2, the roll stand 10Vc adjacent to the roll stand to be taken out is By raising the movable support frame 4' of the roll stand 11, the roll stand 10 is taken out in a direction with an inclination angle that is not perpendicular to the slab clamping surface 12 without hitting the adjacent stands on both sides. This makes the removal work much easier. This take-out angle can be arbitrarily selected depending on the raised position of the movable support frame of the adjacent stand. Note that when a plurality of roll stands are arranged, the fixed roll 8 and the movable roll 9 of adjacent roll stands face each other, forming a pair of rolls to sandwich the slab.

In addition, if a plurality of such roll stands are arranged vertically so that the surfaces that hold the slab are vertical, the take-out direction is not limited to the horizontal direction as in the past, but, for example, from diagonally downward. The roll stand can be moved one by one using the weight of the roll stand to be taken out, such as taking out the roll stand, and the device for taking out can be simplified and its driving force can be small.

[Brief explanation of the drawing]

Fig. 1 is a side view of a roll stand for a continuous casting machine according to an embodiment of the present invention, Fig. 2 is a view showing the roll stand taken out according to the invention, and Fig. 3 is a front view of the roll stand for a continuous casting machine. FIG. 4C is a side view of a conventional roll stand. 1.1'... Roll pair, 4... Fixed side support frame, 4'... Movable side support frame, 5... Hydraulic cylinder device. 6a to 6g...o-tty pair, 7... Slab, 8... Fixed side roll, 9... Movable side roll. 10.11... Roll stand, 12... Slab clamping surface. Sub-Agent Patent Attorney Someyo Rikichi No. 10 No. 2-9 →

Claims (1)

[Claims] A movable side support frame is supported by a fixed side support frame via a telescopic actuator, a plurality of rolls facing each other are supported on both support frames in the same number and at the same pitch, and the slab is sandwiched between the rolls. In the roll stand for a continuous casting machine, the roll row of the fixed side support frame is arranged to be shifted by one roll pitch in the roll arrangement direction with respect to the roll row of the movable side support frame,
A roll stand for a continuous casting machine, characterized in that both ends of the stand in the roll arrangement direction are formed as a whole in an inclined shape with respect to a slab clamping surface.