Forward-reverse tension mechanism for packing machine

Details Forward-reverse tension mechanism for packing machine Forward-reverse tension mechanism for packing machine

2007-01-23

2007-01-23

Huynh, Louis K. (Department: 3721)

Package making

Partial cover application

Band or tube

C053S582000, C100S026000, C100S029000, C100S032000

Reexamination Certificate

active

11187962

ABSTRACT:
A band packing machine includes a body, a transmission unit, a forward-reverse unit and a tension unit. The transmission unit has a rotatable forward-reverse tension cam and a tension cam. The forward-reverse unit includes a forward-reverse motor, a forward-reverse active wheel and a forward-reverse link unit to which a forward-reverse passive wheel is connected. The tension link unit is connected to the tension passive wheel. By controlling the tension cam, the tension passive wheel and the tension active wheel clamp or loosen the bands. The tension unit and the forward-reverse unit are activated by the link units which are activated by cams so that the response time is short. The packing machine is compact and occupies less space in horizontal direction.

REFERENCES:
patent: 4885901 (1989-12-01), Sakaki et al.
patent: 5083412 (1992-01-01), Sakaki et al.
patent: 5379576 (1995-01-01), Koyama
patent: 5651306 (1997-07-01), Hoshino
patent: 6038967 (2000-03-01), Chak et al.
patent: 6655117 (2003-12-01), Hoshino
patent: 6786027 (2004-09-01), Oda et al.

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