METHOD OF CONTINUOUS VULCANIZATION OF INDUSTRIAL RUBBER GOODS AND PLANT FOR ITS EMBODIMENT Russian patent published in 1997 - IPC

FIELD: manufacture of long industrial rubber goods, particular, high-pressure hoses. SUBSTANCE: prevulcanization of blank 47 of the article is accomplished by hot molding by two flexible endless bands laid on the blank and fixed with respect to continuously moving blank. Coils of each band are laid with a clearance to provide for compensation of size variation of blank and band. Spiral arrangement of bands on the blank is effected with displacement of the coils of the upper layer relative to the coils of the lower layer. The plant has false mandrel running in the initial position through vulcanizer 2 into pulling device. Installed in prevulcanization zone 7 of vulcanizer is rotor 8 with two flexible endless molding bands. Working branches of bands are spirally laid, first, on false mandrel, and then, on blank 47. Idle branches of bands are passed between deflecting, guide and tensioning rollers. EFFECT: higher efficiency. 4 cl, 4 dwg