| 摘要 |
A mold (20) for rotary blowing machine for thermoplastic material containers, with half-molds (21, 22) closable as a book around an axis (A) with an opening mechanism with the shaft (15) pivoting around the axis (D) thereof parallel to the axis (A). The cranks (5, 7) are integrally fixed to the shaft (15). The shaft (16) is pivoting around the axis thereof (E) parallel to the axis (A). The cranks (6, 8) are integrally fixed to the shaft (16). The connecting rods (3, 4) are hinged at a first end thereof to the respective half-mold (21, 22) and with a second end thereof to the respective shaft (15, 16). The cam followers (17, 18) follow the cam (9) at a predetermined distance from each other so as to control the opening and the closing of the first and second half-molds (21, 22) in subsequent times to achieve the maximum symmetrical opening of the mold in asynchronous time. |
