MOULD DEVICE FOR ROTATIONAL MOULDING MACHINE AND ROTATIONAL MOULDING MACHINE INCLUDING SAME

摘要

The invention relates to a mould device for a machine for the rotational moulding of a part, that comprises two upper (1) and lower half-tanks, each of said half-tanks being defined by one or more walls (2, 3), wherein the lower (4) and upper inner edges of each half-tank receive a cavity-carrying plate(s) (5) on which are attached one or more upper (8) and lower cavities, the inner surface (10) of the upper (8) and lower cavities defining one or more moulds (11) having a shape corresponding to that of the part(s) to be moulded, and the outer surface (12) of the upper cavity or cavities (8) and of the lower cavity or cavities defining, together with the wall(s) (2, 3) of the upper (1) and lower half-tanks, upper (13) and lower closed chambers. Means (14, 15, 16) are provided for feeding a fluid stream inside the chambers in order to heat the cavities (8), and means (17, 18, 19, 20) different from the means (14, 15, 16) are provided for feeding a fluid stream inside the chambers for cooling the cavities, while means (21, 22, 23) different from the means (14, 15, 16) and (17, 18, 19, 20) are provided for discharging the heating and cooling fluids.