Apparatus for electrostatically spray coating workpieces with air ionizing neutralizing device
AssigneeKopperschmidt-Mueller GmbH & Co. KG
InventorsWerner Heine, Helmut Kurz
Life of this patent
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Abstract
Apparatus for spray coating plate-like or otherwise configurated workpieces has an endless apertured conveyor which transports a series of workpieces along a horizontal path beneath a rotary atomizer which sprays coating material onto the advancing workpieces. The coating material which bypasses the workpices and passes through the apertures of the conveyor impinges upon and gathers on a web of paper or non-woven fibrous material which is advanced at a speed less than the speed of the conveyor so that the web can be used with great economy because it is or can be advanced at a rate such that, or only when, its portion which is in the path of sprayed coating material cannot gather and retain additional coating material.
Claims24
Apparatus for spray coating workpieces, comprising an endless apertured conveyor arranged to advance workpieces along a predetermined path;
- an electrostatic spray generator disposed above said path and having means for directing a spray against the workpieces in said path;
- a spray intercepting web disposed beneath said path;
- drive means for said conveyor;
- and means for effecting a contactless discharge of workpieces including an air ionizing neutralizing device disposed beneath the web opposite the locus of impingement of coating material upon the workpieces in said path.
The apparatus of claim 16, wherein said drive means includes means for moving the conveyor in a predetermined direction, said ionizing portions forming a plurality of rows extending substantially in said predetermined direction.
Dependencies are inferred from the claim text.