Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With work feeding or handling means
Patent
1976-06-15
1977-08-02
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With work feeding or handling means
156552, 156578, B32B 3104, B65C 1104
Patent
active
040393690
ABSTRACT:
The invention is related to a method and apparatus for evenly applying an adhesive or protective spray-coating on f.i. sheets of plastic material and/or cardboard in a non-continuous production system. In such system spray-coating by normally stationary spray-nozzles occurs during the forward stroke of the driving unit and three phases of motion can be discerned. In phase I the motion is non-uniform and accelerated, in phase II it is uniform and in phase III it is again non-uniform, but decelerated.
In order to achieve uniform spraying in all three phases, in a first embodiment the spray material is applied intermittently during the non-uniform phases. In another embodiment of the invention the spray-nozzles are moved in a direction opposite to that of the sheets to be sprayed.
REFERENCES:
patent: 2772717 (1956-12-01), Ware, Sr.
patent: 3037900 (1962-06-01), Hings et al.
patent: 3398039 (1968-08-01), Klemm et al.
patent: 3576696 (1971-04-01), Normanton
patent: 3582428 (1971-06-01), Steinberg
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