Machine for wrapping substantially parallelepiped box elements

Details Machine for wrapping substantially parallelepiped box elements Machine for wrapping substantially parallelepiped box elements

1991-07-16

1993-01-12

Sipos, John

Package making

Wrapping machines

Cover-wiping passage or pocket for initial wrap

53228, 533758, 533874, B65B 1106, B65B 4908, B65B 5110

Patent

active

051779331

ABSTRACT:
A machine for wrapping substantially parallelepiped box elements, typically packs of cigarettes, comprises a push rod by which each box is directed against a respective wrapper of heat-sealable material, and directed together with the wrapper into a pocket, also folders by which the wrapper is closed into a tubular sheath around the box, and a heat-seal device by which the overlapping edges of the wrapper are secured to one another. The folding and heat-seal steps both take place while the box remains positioned in the pocket, with the folders and heat-seal device operating sequentially and in such a way that the overlapping extremities of the wrapper are secured before bring released by the folders, thereby ensuring that the wrapper remains taut.

REFERENCES:
patent: 3040488 (1962-06-01), Winkler et al.
patent: 3150475 (1964-09-01), Schooler
patent: 4194340 (1980-03-01), McIntyre
patent: 4711065 (1987-12-01), Focke et al.
patent: 5003755 (1991-04-01), Draghetti

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