| 摘要 |
An elongate machine (10) for winding a helically wound pipe from a strip (12). The machine comprises: a frame (20) having at least three circumferentially spaced guide rollers adapted to bear against the inner periphery of the pipe being wound; an elongate strip guide (40) for guiding the strip axially through the machine from an entrance position adjacent the trailing end of the machine to an exit position (44) adjacent one of the three guide rollers; a strip drive pinch roller assembly (24), mounted to the trailing end of the frame adjacent the entrance position, for driving the strip (12) though the strip guide (40) in compression to around the outside of the rollers so as to follow a helical path and cause adjacent edge portions of adjacent convolutions of the strip (12) to interlock; and a motor (26) for driving the strip drive roller means (24), whereby, in use, the strip (12) is continuously driven by the strip drive roller means (24) through the strip guide (40) to a position adjacent the last convolution wound to thereby form a helical pipe. |
