| 摘要 |
A disc (8) mounted on a rotary shaft (7) is provided with stops (10, 11) on its opposite sides (12, 13) for cooperating with counter-stops. The shaft drives the rotary tools (6, 6) which form the internal threading (5) and is designed to make a given number of revolutions before the disc and therefore the shaft stops. A device (1) used in a moulding machine (2) for making plastic articles (3) with an internally threaded cavity (4) is provided with rotary tools. A disc mounted on a rotary shaft is freely movable in the axial direction of the shaft and is provided with stops on its opposite sides for cooperating with counter-stops on either side of the disc. The shaft drives the rotary tools and is designed to make a given number of revolutions before the disc and therefore the shaft stops. |
