Importance

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Abstract

The apparatus for electrophoretic repainting of metal objects, in particular lids for containers for food use, comprises a tank (30) containing an electrophoretic bath; an electrode, immersed in the electrophoretic bath, a conveyor line (10), provided with elements for supporting lids (20), the conveyor line (10) being arranged such as to transit internally of the tank (30) in order to immerse the lids (20) in the electrophoretic bath; and a unit (40) for establishing an electrical contact with the lids (20) transiting immersed in the bath, having an opposite polarity with respect to a polarity of the electrode immersed in the bath. The contact unit (40) includes a rotation element (4) which rotates about a longitudinal axis thereof, an external lateral surface (42) thereof affording a groove (5) having a helical progression destined to receive conductive electrical means such as to contact at least an end portion (21) of the lids (20). The arrangement of the rotation element (4) above the tank (30) and with respect to the conveyor line (10), is such that at least a point of the conductive electrical means maintains contact with the end portion (21) of the lids (20) during transit thereof immersed in the solution of the tank (30).

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First Claim