Vacuum supply control for a three pad labelling head machine

Details Vacuum supply control for a three pad labelling head machine Vacuum supply control for a three pad labelling head machine

1985-07-05

1986-05-20

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With gas, vapor, or flame contact means for work

156521, 156568, 156578, 156DIG28, 156DIG33, 156DIG45, B65C 918, B65C 942

Patent

active

045899452

ABSTRACT:
A labelling machine with three pad head where during labelling of articles every other pad is skipped, each pad having vacuum holddown ports in the periphery to temporarily attach a label during the labelling process, a control valve for controlling admission of vacuum to each pad so that a label is attached to and carried by the pad into labelling relation with an article brought forward by a conveyor belt, and a vacuum distributing valve to limit the vacuum supply to the control valve so that no vacuum can be admitted by the control valve to a skipped pad thereby preventing undesirable loss of vacuum to the atmosphere through the absence of a label to close the pad holddown ports.

REFERENCES:
patent: 3367822 (1968-02-01), Hoffler
patent: 3464871 (1969-09-01), Smith
patent: 3723228 (1973-03-01), Schaltegger

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