Centrifugal dental casting machine with arms - has drive with spring loaded balancing and holding arms for crucible

摘要

The centrifugal casting arrangement is used especially for dental purposes. Connected on the drive by a lever with vertical rotating axis, a centrifugal force arm carries the melting crucible and casting sleeve. The drive carries also on the other side a counterbalancing arm. Starting of the centrifugal action with incorrectly positioned arm components is reliably avoided and the casting process is optimised. Between each of the two arms (4, 7) and the driving arrangement (2) are fitted springs (9) which attempt to pull the arms into pivoted initial position. Second springs (11) are fitted between each arm and the driving arrangement. These springs are connected only on one end with the driving part or one of the two arms. They are loaded in compression and exert greater force than the first springs (9).