SU984652A1 - Reduction apparatus for horisontal iron continuous casting machine - Google Patents

Description

(5) RETRACTABLE DEVICE FOR HORIZONTAL CONTINUOUS CAST IRON MACHINES

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The invention relates to metallurgy, and specifically to foundry, in particular, to devices for dividing billets into measured lengths in horizontal continuous casting plants.

A device for cutting the machine for continuous casting of blanks is known, comprising a table on which a platform with cutters mounted on Q-machine is installed on it and an electric drive with a control system for moving the platform in a direction perpendicular to the surface cuts the ingot which additionally co-js holds the high-frequency generator an insulated metal plate mounted parallel to the ingot surface on the platform, and a capacitor with a drive for a remote control C 1.

The closest in technical essence and the achieved result to the proposed is a device for cutting

oTjuieaeMoro ingot on continuous metal casting plants, containing an electric actuator, a knife connected to the rod and rigidly connected to the electric actuators of the second knife, in which the LAF; associated with the rod, is stepped on the input side of the workpiece to the cutting zone 2.

A natural disadvantage of the known device is the absence of fixing the workpiece before cutting. Cutting is carried out with a double-sided impact of the knives, and the billet has the ability to move to either side arbitrarily, causing destruction of the graphite insert of the crystal1 as applied to horizontal continuous casting machines; breakthrough liquid metal. In addition, it is known that, in order to separate the cast iron billet, first an incision is made on the surface of the billet and then broken. Moreover, for blanks of a wide nomenclature with different heights, a different depth of cut is required on both sides in height, and the harvesting, which is not possible to adjust on a known device. It is not economically feasible to carry out complete cutting of the cuttings with the help of a known device, since this sharply reduces the productivity and disrupts the stability of the process of drawing the workpiece. The purpose of the invention is to fix the workpiece by a notch and control the cutting depth. , and adjustable stops installed in the window, made in the frame. Moreover, the stops are made in the form of a set of dimensional tiles with supporting protrusions each. FIG. 1 shows a crimping device with a diagram of a set of measuring plates depending on the height of the workpiece and the depth of the notch, a section; in fig. 2 - traverse with a knife and clamp in the initial position, cut; in fig. 3 set of dimensional tiles in the plan. The crimping device consists of a roller table 1 with a clamping mechanism located i on the frame of the roller table. The crimping mechanism contains a bed 2, two vertically movable crossbeams 3 with knives C fixed on them and clamps 5i so that the supporting surface of the clamp protrudes 5–10 mm above the blade, two power cylinders 6, two adjustable stops 7 and two screws 8. Adjustable stops made in the form of a set of dimensional tiles with support

each projection installed in the windows of the bed, and the thickness of the set depends on the height of the workpiece H and the depth of the notch tt.

Due to the presence of the clamps, the workpiece is fixed in front of the notch, and by installing the stops from the plate set, it is possible to regulate the blanking of the workpieces without the notch and with a one-sided notch. At the same time, the laboriousness of the operation for the separation of continuously cast billets is significantly reduced.

Claims (2)

Claims 1. Crimping device for horizontal continuous casting machines on the surface of the workpiece. The device works as follows. , Preset a predetermined notch depth of the workpiece, for which sets of measuring tiles with a thickness equal to the height of the workpiece H, put support protrusions into the windows of the bed 2, then remove tiles from the top of each set with a thickness equal to the cutting depth li of the upper knife, and remove e, and the second tile of the same thickness is taken out, unwrapped by a supporting ledge 180 ° and inserted under the bottom of the set, after which the set is fixed with screw 8, the blank, shown by dash-dot line, moves along the roller table 1, the passage between the two knives bench press When advancing the workpiece to the measured cut length, for example, for cast iron machine workpieces of 1-6 m, at the time of the pause, a command (Operator or automatic control system) is issued to activate the crimping mechanism. The energy carrier, for example, air, enters the cylinders 6 and reduces the traverse 3 with the knives C and the clamps 5. At the same time, the clamps are lowered to the surface of the workpiece and clamped. The crossheads continue to move to the adjustable stops 7, with the knives being inserted into the workpiece to a predetermined depth ti and making a two-sided cut on the surface of a continuously cast workpiece. Due to the restriction of movement of the cross-arms up to the stops from the plate set, the depth of the cut is adjusted on the surface of continuous casting. Preliminary fixation of the workpiece with clamps before making an incision helps prevent breakthroughs of the liquid metal at the exit from the mold and eliminates the destruction of the graphite insert of the mold, and a two-sided cut of the workpiece reduces the waste when machining the ends by 10-15, since the fracture surface is flat in contrast fracture; obtained by the razchugun containing a frame located on the frame of the roll table, two vertically movable traverse with a wedge-shaped knives and a drive, which is so that, in order to fix the workpiece before the notch and adjust the cut depth, it is equipped with clamps fixed on the traverse, - and adjustable stops installed in the windows, made in the frame. 98 26 2. The device according to claim 1, 1 and 2 tons, and often because the adjustable stops are made in the form of a set of dimensional tiles with supporting protrusions. Sources of information received in sHMMaj-He during the examination of t. USSR author's certificate Jf 738755, cl. On 22 D 11/16, 1980. 2. USSR author's certificate No. 62k70 (, cl. B 22 1) 11/126, 1978. e / ef