| 摘要 |
<p>1385314 Conveying workpieces AEG-ELOTHERM GmbH 26 Sept 1973 [30 Sept 1972] 45109/73 Heading B8A Apparatus for handling workpieces 19 undergoing induction heating and quenching comprises a lifting beam conveyer 20, an intermittently operated rotary carrier 4, 5, an induction heating unit 17 and a tank 2 from which the workpieces are discharged by a chain conveyer 36. Should the transfer from the beam conveyer 20 to the rotary carrier not take place, one or more further operations to transfer the workpiece are made before the workpiece is withdrawn. The conveyer 20 has beams 22 movable in either direction in a circular motion, and has fixed beams 21 with workpiece rests 24. Rests 24<SP>1</SP> are in alignment with a pair of workpieceengaging centres 7 mounted in arms 5 of the rotary carrier when the arms are in a loading position 16. At a heating station 17 an inductor is shown in a working position but may be moved to a non-working position when workpiece 19 is to be indexed to a quenching and unloading position 18. One centre 7 of each pair of centres is driven continuously to rotate a supported workpiece. If a limit switch 25 detects a workpiece 19<SP>1</SP> correctly supported in the rests 24<SP>1</SP>, centres 7 engage the workpiece which is then indexed to the heating and quenching stations 17, 18. If the centres fail to engage the workpiece satisfactorily, the centres are re-opened and the workpiece lifted by reversal of the drive for the beams 22 to a position 38 from whence the workpiece may be removed. Alternatively, the beams 22 may lower the workpiece to a level below the centres 7 preparatory to initiating a second series of operations to correctly position the workpiece between the centres. Automatic operation is controlled by limit switches 13, 13<SP>1</SP>, 14, in addition to the switch 25.</p> |
