| 摘要 |
PURPOSE:To prepare a spiral pipe having high strength and excellent airtightness, by mounting a nozzle part applying the adhesive supplied by an adhesive supply means to the predetermined position of the strip like body fed by a feed means. CONSTITUTION:A hydraulic motor 53 is driven to rotationally drive a drive roller 51 and a strip like body 90 is fed in a predetermined direction. Further, an adhesive supply pump 70 is driven to apply an adhesive to the engaging groove 95 of the strip like body 90 from a nozzle 75f. The nozzle 75f moves so as to follow the movement of a nozzle guide 75g to be always opposed to the engaging groove 95. The strip like body 90 is introduced into the cylindrical space formed by pipe forming rollers 30 while the unnecessary adhesive thereon is scraped off by a scraping part 78 and forcibly bent in a state contacted with the pipe making rollers 30 under rotation to be spirally wound. One side part 91a of the leading end part of the strip like body 90 is engaged with the engaging step part 94 of the strip like body 90 succeedingly introduced and the engaging rib 93 of the leading end part is engaged with the engaging groove 95 coated with the adhesive and the leading end of the engaging rib 96 of the succeeding strip like body 90 is engaged with the engaging part 92a provided to the side part of the leading part of the strip like body 90 having completed a revolution in the cylindrical space. |
