Press sealing structure of a sealing machine

Package making – Closing packages and filled receptacles – By means adapted to engage outturned seam of package cover

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533748, 533749, 533756, B65B 5110

Patent

active

060475226

ABSTRACT:
A press sealing structure of a sealing machine includes a control box on a machine base. The control box has both sides respectively connected pivotally to respective links by respective axial bolts. The links have respective front ends extending out from the machine base to connect securely with a placement press plate. A heating plate extends upwardly from the placement press plate. A screw bolt is secured screwably on that part of each of the links inside the machine base. The screw bolt urges against a contact press plate of a microswitch. A middle section of each of the links is connected pivotally with a substantially L-shaped seat plate by means of an axial bolt. The seat plate has a front end extending out from the machine base to connect securely with an upper press rod; a heat-resistant plastic strip being provided clampingly at a lower portion of the upper press rod. A spring is disposed intermediate said seat plate and the respective one of said links. By means of this arrangement, operation of sealing openings of plastic bags by the sealing machine can be precisely controlled and proceeded.

REFERENCES:
patent: 4860523 (1989-08-01), Teteishi et al.
patent: 4941310 (1990-07-01), Kristne
patent: 5177931 (1993-01-01), Latter
patent: 5177937 (1993-01-01), Alden
patent: 5239808 (1993-08-01), Wells et al.
patent: 5638664 (1997-06-01), Levsen et al.

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