Method and apparatus for transversely welding and severing a the

Details Method and apparatus for transversely welding and severing a the Method and apparatus for transversely welding and severing a the

1999-03-26

2000-12-19

Kim, Eugene

Package making

Methods

Closing package or filled receptacle

533737, 533759, B65B 5110

Patent

active

061613665

ABSTRACT:
An apparatus for transversely sealing and severing a thermoplastic wrapper sleeve to obtain individual packages, includes a first welding and severing unit movable back and forth in a first direction and having a first holder; a heated rail and a first clamping mechanism, both supported by the first holder. The first clamping mechanism has first and second clamping components movable toward and away from one another in a second direction oriented transversely to the first direction. A second welding and severing unit is movable back and forth in the first direction and having a second holder; a spring-loaded counter holder mounted on the second holder for cooperating with the rail; and a second clamping mechanism supported by the second holder and having third and fourth clamping components movable toward and away from one another in the second direction. A drive mechanism moves the first and second welding and severing units simultaneously toward one another to clamp the wrapper sleeve therebetween by the first and second clamping mechanisms and to engage the wrapper sleeve by the rail and the counter holder, and for simultaneously moving the first and second clamping components as well as the third and fourth clamping components toward and away from one another.

REFERENCES:
patent: 3692613 (1972-09-01), Pederson
patent: 5001891 (1991-03-01), Abate
patent: 5056295 (1991-10-01), Williams
patent: 5131213 (1992-07-01), Shanklin et al.
patent: 5463851 (1995-11-01), Nagai
patent: 5673534 (1997-10-01), Fowler
patent: 5755076 (1998-05-01), Otsuka
patent: 5771660 (1998-06-01), Loewenthal

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