Packaging machine with device for monitoring remaining amount of

Details Packaging machine with device for monitoring remaining amount of Packaging machine with device for monitoring remaining amount of

1995-02-06

1996-06-11

Culver, Horace M.

Package making

With means responsive to a sensed condition

Of receptacle or cover feed or adjunct feed or application

53552, 533892, 226 45, 226100, B65B 4112, B65B 5702, B65B 5718

Patent

active

055244130

ABSTRACT:
A monitoring device is used for a web roll which is rotated so as to unwind a web therefrom, for example, for making bags for a packaging machine. The speed of rotation of the web roll is detected by a revolution counter or an eye-mark sensor if the web is provided with eye-marks, and the current outer radius of the web roll is calculated from the detected speed of rotation as well as inputted data such as the length of the web required for making a bag and the number of bags being produced per unit time. The length of the web remaining in the web roll and other related data can be calculated and displayed either all at once or selectably in response to the user's instruction. An alarm signal may be outputted when the calculated outer radius of the web roll becomes small enough according to a preset criterion.

REFERENCES:
patent: 4691499 (1987-09-01), Umeda et al.
patent: 4727707 (1988-03-01), Hadden
patent: 5272853 (1993-12-01), Francioni et al.
patent: 5279098 (1993-03-01), Fukuda
patent: 5280274 (1992-03-01), Uemura
patent: 5328072 (1994-07-01), Ruessmann et al.
patent: 5388387 (1995-02-01), McElvy
patent: 5400980 (1995-03-01), Yoshikawa

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