Strand milling machine |
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| 申请号 | US3791258D | 申请日 | 1973-01-16 | 公开(公告)号 | US3791258A | 公开(公告)日 | 1974-02-12 |
| 申请人 | TECHNICA GUSS GMBH; | 发明人 | KRALL H; MAAG H; | ||||
| 摘要 | A milling machine receives a strand or billet from a continuous casting machine. The machine has a frame and rollers that mount it for back and forth movement on rails in the line of the feed of the strand from the casting machine. A pair of pressure rollers, one above the other, feed the strand therebetween, one of the rollers being rotated by a motor. The milling machine has support tables adjustable vertically, over which the strand moves, rotating milling cutters above and below the strand for milling the same and pressure tables opposite the cutters so that the top and bottom of the strand are both milled. The two sets of electrical circuit limit switches along the rails. On the bottom portion frame of the movable milling machine is adjustable mounted a rail which contacts an actuating arm of the switches as it moves there over. These limit switches are in a control circuit to an electric motor that drives one of the feed rollers. The feed rolls draw the strand through the milling machine. If the circumferential speed of the feed rolls is faster than the medium strand speed from the drawing mechanism of the casting machine, the milling machine is moved towards the continuous casting plant. If it is lower, it moves away from it. The speed is graduated from switch to switch of each set. | ||||||
| 权利要求 | 1. A milling machine having means for simultaneously milling the upper and lower part of a billet or strand as it is fed from a continuous casting plant, means mounting the machine for movement in a path toward and away from the casting plant in the direction of strand feed, a pair of feed rollers on the machine for feeding the strand therebetween with one of said rollers having variable speed drive means, control means along the path of movement of said machine connected to and controlling said feed motor variable speed drive means, said control means being actuated by a rail on said machine actuating said control means as it moves there past, whereby the feed rollers draw the strand through the machine and if the circumferential speed of the feed rollers is faster than the medium strand speed feed from the continuous casting plant, the milling machine is moved Towards the casting plant through actuation of the on the strand by decreasing their speed and if it is slower, the machine is moved away from the casting plant by increasing the speed of the feed rollers. 2. A milling machine according to claim 1 wherein said control means along the path of movement of the machine includes limit switches having operating levers moved by said rail on the machine. 3. A milling machine according to claim 1 wherein said control means along the path of movement of the machine include potentiometers having operating means actuated by said rail on the machine. 4. A milling machine according to claim 1 wherein the variable speed drive means for the driven feed roller includes control means dependent on waiting time, the length of the drawing way and the drawing time of the continuous casting plant. |
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