Packing machine

Details Packing machine Packing machine

1991-05-28

1992-10-20

Sipos, John

Package making

Partial cover application

Band or tube

100 29, B65B 1322

Patent

active

051559820

ABSTRACT:
The packing machine is provided for laying band (11) around goods (10) to be packed, with the band being advanced by a drive roller (42). After a complete loop has been generated by the band (11), the band is reversed by a drive roller (43) in a reverse movement to be performed first at high speed. Then, the band (11) is tensioned by further reverse movement at a low speed. For the fast movement, there is provided a first drive branch (70) which alwys drives both drive rollers (42,43) in common. A second drive branch (71), including a gearing (80), is provided for tensioning the band (11). A gearing member (81) of the gearing (80) is held fast by a stationary holding coupling (86). If the tension exceeds the braking moment provided by the holding coupling (86), the previously retained gearing member (81) is rotated. This rotation is detected by a sensor (88) which then initiates termination of the tensioning. Said holding coupling (86 ) is an electromagnetic brake adapted for electrically setting the holding moment within wide limits.

REFERENCES:
patent: 4559767 (1985-12-01), Takami
patent: 4605456 (1986-08-01), Annis
patent: 4724659 (1988-02-01), Mori

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