ROTATIONAL POSITIONING DEVICE

摘要

Device for controlled rotational positioning of a carrier plate (8), which is rotatably mounted on a support member (2). The device can be included in e.g. a rotary feeder on a rotatable rotor frame. A motor (14) is connected to a rotational drive means (15, 16, 17, 18) acting between the carrier plate and the support member (2). In accordance with the invention, the carrier plate (8) is mounted on sliding bearings on the support member (2) and the rotational drive means includes an endless drive loop (17). The sliding bearing means (7) preferably includes at least one annular slide element or at least one array of circumferentially distributed slide elements (12a, 12b), e.g. of polyamide.