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    • 4. 发明申请
    • HEMMING AND SEAMING MACHINE EQUIPPED WITH ROTATING HEAD
    • WO2022144771A1
    • 2022-07-07
    • PCT/IB2021/062388
    • 2021-12-28
    • GAI MACCHINE S.P.A.
    • GAI, Carlo
    • B21D51/32B21D51/26
    • A hemming and seaming machine (9), for hemming and seaming a lid (1) to a container (2), comprises a supporting frame (10), which includes: an upright (12), extended along a primary axis (x) and a structure (14) supported by the upright (12) in a rotatable manner around such primary axis (x); at least a pair of mandrels (16), carried by the structure (14) and rotatable around respective secondary axes (y), parallel to the primary axis (x); at least two pairs of rollers (18a, 18b, 19a, 19b), carried by the structure (14), each of the at least two pairs of rollers being associated with a respective mandrel (16); and a single plate (26), coaxial to one of the mandrels (16) and adapted to form a rotatable support for the base of a container axially interposable between such plate (26) and the respective mandrel (16), so that, for each hemming and seaming cycle, there is only one pair of rollers (18a, 18b, 19a, 19b), among all the rollers (18a, 18b, 19a, 19b) included in the hemming and seaming machine (9), which engages the radially outer edges of the lid (1) and the container (2).