PROCESS AND DEVICE FOR COATING GLASS CONTAINERS AND COATED GLASS CONTAINERS

摘要

A method of applying a layer onto a glass container (3) involves using a grab (12) of a manipulator (13) to transport a group (10) of the hot containers (3) to above a coating vessel (18), immerse the group in a coating medium, raise the group and transport the group to above a transport belt (22) where the grab (12) is inactivated to release the group (10) onto the belt (22), the empty grab (12) then being returned to a pick-up point (11) for gripping a new group (10) of containers (3). The novelty is that, after being released from the grab (12), each group (10) of coated containers (3) is transported by the belt (22) through a second curing zone (27) for curing the applied layer. An installation for carrying out the above method has (a) a heating unit (7) for heating the containers (3) to the coating temperature; (b) a manipulator (13) with a grab (12) for picking up and transporting a group (10) of the containers (3) from a pick-up point (11); (c) a grab holder (15) which ca n move along a track of the manipulator (13) and which has a gripper (16) for releasably gripping each container (3) of the group (10); (d) a coating vessel (18) for dip coating of the container group (10); and, as the novel feature, (e) a second curing zone (27), through which each container group is transported by a transport belt (22) for complete or partial curing of the applied layer. Preferably, a first curing zone is provided between the coating vessel (18) and the transport belt (22) for curing the layer on the container bases, the second curing zone (27) being used to harden the rest of the layer. Further claimed is a glass container having, on at least part of its exterior surface, a preferably 30-60 mu m thick layer of thermosetting powder lacquer.