DEVICE FOR PRODUCING MULTILAYER HOSE OF PAPER STRIPES Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: device for producing multilayer paper hoses from paper stripes with equally spaced lateral perforation for tearing off sections of hose at making bags has at least one cutting blade installed on machine frame and secured on rotating shaft. Cutting blade makes lateral perforations in paper stripes. Radial distance of blade from shaft can be changed for setting required size. Installed on machine frame are lateral gluing cylinders which are provided with lateral gluing strips interacting with glue applying units. Longitudinal gluing roll applies layer of glue to edges of paper stripes lying with side displacement relative to each other and brought together by means of guide rollers before their folding into hose. For simple and quick readjustment of device for producing hose sections of different length, shaft is provided with four holders located on shaft at different angular spacings for selective fixing on them of perforating blades having units for changing their radial distance from shaft. EFFECT: high efficiency. 4 cl, 2 dwg