Apparatus for transferring containers of thermoplastic material with a prefixable orientation

Pick-up plug for carrying hollow bodies of plastic material, which may be constituted by either blow-moulded containers or preforms for blow-moulding into finished containers, and conveying the same towards collecting means or lines in which said containers or preforms are further processed or used, said pick-up plug comprising at least

• a stator (10) having an annular shape, which is provided with a central axis (O) and is adapted to engage driving means of the belt or magazine or loader type that are capable of transferring said hollow bodies in an orderly and sequential manner into the subsequent processing stations,
• a rotor (11) having an annular shape, which is capable of being associated to a respective stator and has the same axis, or common axis (O), as the respective stator,
• said rotor and said respective stator being mutually engaged and being capable of rotating relative to each other about said common axis,
• characterized in that
• in said stator there are applied a plurality of magnetized elements capable of being collected into a multiplicity of distinct clusters of magnets, in which each such cluster of magnets comprises magnets provided with a same polarity (N), (S),
• in said rotor there arc applied a plurality of magnetized elements capable of being collected into a multiplicity of distinct clusters of magnets, in which each such cluster of magnets comprises magnets provided with a same polarity (N), (S), said magnets of both the rotor and the stator being arranged so as to enable said rotor and said stator to dispose themselves, when at rest, into a definite number of prefixable relative positions with respect to each other.