| 摘要 |
The pallet (1), pierced with holes (3) intended to receive pieces (2) arranged on concentric circles, is driven in rotation by a motor (6) whose shaft (7-10) traverses an elongate opening (8) of a linearly movable table (9). The pallet (1) is integral with a cam (22) having a groove (24) formed by open concentric circles linked, at their ends, by oblique rectilinear groove portions. A finger (26), integral with the table (9), engages in the groove (24). The cam (22) is integral with a positioning disc (27) having openings (28) disposed in the same arrangement as the holes (3) in the pallet (1). These openings (28) are sighted by a photoelectric cell (30). An actuator (31) activates an extractor (34) carried by the table (9) and which extracts the pieces (2) from the holes (3). After each rotation turn of the pallet (1), driven step-by-step by the motor (6), the passage of the pin (26) from one circle of the groove (24) to the next displaces the table (9) laterally, bringing the extractor (34) opposite the pieces (2) of the next concentric circle of the pallet (1). <IMAGE>
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