| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the damage of a corrugated tube manufacturing apparatus itself when a corrugated tube is cut within the apparatus. SOLUTION: A pair of mold rotary members 12, 12 having molds 10 connected thereto in an endless annular shape are arranged in up and down opposed relationship and a molten resin is supplied to the confluent parts of the respective molds 10 while both mold rotary members 12, 12 are circulated and rotated and sucked to the mold surfaces of the molds 10 under vacuum to continuously form a long corrugated tube. A cutting detection means 50 detecting the cutting of the corrugated tube is provided on the way of the tube feed-out passage P for taking out the corrugated tube provided on the extension from the separating part of the molds 10 and, when the cutting of the corrugated tube is detected, this state is communicated to a worker by an information means.</p> |
