B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/39, 78/49
B23K 5/02 (2006.01) B21C 37/12 (2006.01)
Patent
CA 1237003
ABSTRACT OF THE DISCLOSURE: An apparatus for fabricating multi-layer spiral tubes including first drive means for performing rotation of an inner cylinder around which a web is to be wrapped spirally and movement of a slide base along the longitudinal direction of the inner cylinder, the slide base being disposed on a bed so as to be slidable along the longitudinal direction of the inner cylinder, a plurality of pairs of cradles mounted on the slide base for placing the inner cylinder thereon, first depressing rolls for wrapping the web, second depressing rolls for constraining a weld portion of the web, an automatic gap detector for detecting a gap between adjacent edge portions of the wrapped web, an automatic welding machine for welding edge portions of the wrapped web, an automatic grinding machine for grinding excess metal of welding, an automatic defect hunter for detecting defects in the weld portion, a web feed table for feeding the web, and second drive means for moving the web feed table, is improved in that a central control unit is provided and coupled to the first drive means, the cradles, the first depressing rolls, the second depressing rolls, the automatic gap detector, the automatic welding machine, the automatic grinding machine, the automatic defect hunter, the web feed table and the second drive means, for controlling the operations of these component means in a con- centrated manner.
491586
Kimura Shigeaki
Oe Tsutomu
Ozaki Tadao
Yuzaki Yoshinori
Mitsubishi Jukogyo Kabushiki Kaisha
Riches Mckenzie & Herbert Llp
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