| 摘要 |
<p>A cutting means in an apparatus for continuously manufacturing spiral strip piping, fed in unbroken lengths, consisting of an upper, driven knife wheel (4) and a lower, freely rotating, circular, substantially horizontal support roller knife (20). The knives (4,20) are arranged on a table (22), swivellable in relation to the travel of the strip (1) and displaceable perpendicularly to the travel of the strip (1). Before cutting, the angle of the upper knife (4) to the travel of the strip (1) is adjusted, by means of the swivellable table (22), to the desired pipe diameter for providing square pipe ends.</p> |
