METHOD FOR MANUFACTURING COMBINED CANS AND COMBINED CAN MANUFACTURED BY THIS METHOD Russian patent published in 2023 - IPC B65B1/02 B65B31/02 

FIELD: combined cans.

SUBSTANCE: group of inventions is related to methods and means for manufacturing combined cans. The method includes: forming a hollow body (203) by bending the body blank (16) and bringing two opposite edges of the body blank (16) together end-to-end; sealing the joint by welding a sealing strip (214) over the joint, thereby forming an intermediate can (403; 503); sealing the top hole (211) by attaching the top sealing element (227) across the top hole (211); applying the upper edge (223) to the intermediate can (403; 503) by welding the inserted part of the upper edge (223) to the inner surface of the hollow main part (203); turning the intermediate can (403; 503) upside down and placing the intermediate can (403; 503) on the conveyor (2a) with the upper edge (223) resting on the conveyor (2a); filling the intermediate can (403; 503) through the lower hole (213); sealing the lower opening (213) of the hollow body (203) by attaching the lower sealing element (215) across the lower opening (213); inverting the intermediate can (403; 503) to bring the top edge (223) into a position where it faces upward; attaching a resealable cap (221) at the upper end of the hollow body (203), the intermediate can is maintained under a protective gas atmosphere from the moment the intermediate can is filled until the moment the lower opening (213) of the hollow main part (203) is sealed.

EFFECT: increase in production speed is achieved.

12 cl, 9 dwg