Product conveying system for coating and treating surfaces

Details Product conveying system for coating and treating surfaces Product conveying system for coating and treating surfaces

1997-03-25

1998-04-28

Edwards, Laura

Coating apparatus

With means to apply electrical and/or radiant energy to work...

Radiant heating

118 58, 118 66, 118320, 118322, 118324, 1983474, 1984652, 104 8802, 104 8803, 104 8805, 104104, B05B 1300

Patent

active

057439621

ABSTRACT:
A work is applied with a solvent-containing thermosetting coating composition to a thickness larger than a limit thickness over which the coating composition on a surface of the work extending in a vertical direction will normally run or sag in a coating zone. After applied with the coating composition, the work is rotated about a substantially horizontal axis to prevent the coating composition on the vertical surface of the work from running or sagging and is conveyed through a heat-hardening zone for hardening the coating composition applied to the work by heating by a conveyor line. The conveyor line includes a pair of conveyors which are separated from each other upstream of a position where the coating composition is applied to the work to a thickness larger than said limit thickness. The heat-hardening zone includes a pre-heat-hardening zone for half hardening the coating composition and a main heat-hardening zone for fully hardening the coating composition after the coating composition is half hardened. A pooling zone in which a predetermined number of works can be temporarily pooled is provided between the pre-heat-hardening zone and the main heat-hardening zone.

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