FIELD: tire industry. SUBSTANCE: invention relates to equipment designed for building up tire casings on collapsible drums. Proposed device has main drum formed by sectors, auxiliary building up drums movable along axis of main drum. Auxiliary drums are made in form of sectors mounted by means of axles on sliders installed in grooves of flanges for radial displacement. Device is furnished also with drives. To increased reliability of operation, improved quality of tires and reduce energy consumption, grooves are formed by radial projections of flanges for which slots are made in end faces of sectors of main drum, and rollers are installed on axles for engagement with outer shaped surface of main drum. EFFECT: improved reliability of building-up device. 7 dwg
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