Coating apparatus – With vacuum or fluid pressure chamber
Patent
1975-04-10
1977-02-08
McIntosh, John P.
Coating apparatus
With vacuum or fluid pressure chamber
118 62, 118236, 118246, 118247, 118245, B05C 102
Patent
active
040067041
ABSTRACT:
A gluing machine employs substantially linear conveying motion and has easily installed change parts, which adapt the machine to handle thin paper or relatively heavy cardboard. A vacuum head with compound motion delivers a sheet of cardboard or paper from a vertical stack by lifting the leading edge and advancing it substantially horizontally between drive rolls which deliver the sheet under a glue roll. A glue spreader roll is mounted on eccentrics for adjusting its spacing from the glue roll. For relatively stiff sheets, a pair of removable presser rolls under the glue roll continuously flex the moving sheet into close contact with the glue roll and the sheet is delivered onto a dual compartment vacuum conveyor for positive ejection and accurately timed delivery to a downstream processing station. The presser rolls are replaced with a fixed bridge for handling flexible sheets, and the vacuum head is rotated while in motion by an air cylinder carried on the support arms for the vacuum head. The air cylinder can be disabled for handling stiff sheets. Manually controlled air cylinders are provided for retracting the vacuum cups from the feed rolls and for lifting the upper feed roll in order to facilitate clearing jams.
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patent: 3861351 (1975-01-01), Bonwit et al.
patent: 3861668 (1975-01-01), WOOD
FMC Corporation
McIntosh John P.
Tripp C. E.
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