Automatic packing and sealing machine

Details Automatic packing and sealing machine Automatic packing and sealing machine

1994-11-03

1995-06-13

Larson, Lowell A.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

53548, 53562, 53504, 53503, B65B 906

Patent

active

054231620

ABSTRACT:
An automatic packing and sealing machine comprising a front conveyor set, a fast locating device for quickly adjusting and locating the front conveyor set and a sensing device for sensing an article passing therethrough. The sensing device employs a close contact block and a shade board connected therewith. The close contact block is upward swung by the passing article to make the shade board shade a close contact switch so as to actuate a sealing blade for sealing operation. An auxiliary film-pulling device is used to pull the plastic film so as to avoid that an excessively high article cannot be actually clamped by a clamping device and the plastic film packing the article loosen therefrom or the sealing portion is crimped. An elevator device is used to adjust the level of the sealing blade seat to suit various heights of the packed articles. The sealing blade has an arch joint portion which will not thrust the plastic film during the sealing operation.

REFERENCES:
patent: 3405501 (1968-10-01), Edelberg et al.
patent: 3469368 (1969-09-01), Churchill et al.
patent: 3729894 (1973-05-01), Stohlauist
patent: 4182096 (1980-01-01), Ballestrazzi et al.
patent: 4369613 (1983-01-01), Gess
patent: 4887412 (1989-12-01), Takamura
patent: 5255495 (1993-10-01), Kovacs

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