| 摘要 |
A shuttle rotamoulding apparatus which comprises first and second rotatable moulds (10, 12) mounted for biaxial rotation on first and second trolleys (14, 16) respectively. An oven (18) large enough for one of the trolleys (14, 16) to be wheeled therein is provided for heating the mould in order to rotamould the product within the mould. The oven (18) is provided with first and second doorways (20, 22) located on opposite sides of the oven (18) through which the first and second trolleys (14, 16) can pass respectively. The apparatus also comprises first and second cooling bays (24, 26) for cooling the first and second moulds (10, 12) on their respective trolleys (14, 16) respectively. The first and second trolleys (14, 16) operate substantially independently of each other, and each trolley is provided with its own mould drive assembly (30) including an electric motor (32) for rotating the mould, mounted on a motor mounting frame (48). The oven (18) is provided with an opening (50) extending along one side wall (52) through which the motor mounting frame (48) can protrude when the trolley enters the oven (18). The shuttle rotamoulding apparatus and method is particularly advantageous for rotamoulding large products, and facilitates substantially continuous operation of the oven (18) without inefficient down time.
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