Mould for particle foam moulding

Abstract

Mould for particle foam moulding (10), for example dry moulding, comprising: a first mould section (1); a second mould section (2) movable with respect to the first mould section, between: a closed position, in which the first mould section (1) and the second mould section (2) define a cavity (3); a semi-closed position, in which the first mould section (1) and the second mould section (2) are spaced further away from each other than in the closed position for filling the cavity (3); and an open position, in which the first mould section (1) and the second mould section (2) are spaced at a distance (d) from each other to allow removal of a fused particle foam product (98) from the cavity; a filling arrangement (4) to feed foamable particles (99) into the cavity (3) in the semi-closed position; a temperature control system (5) to heat the cavity, wherein the temperature control system comprises at least one injector (51) configured to inject a controlled amount of heating fluid, such as steam, into the cavity (3) for fusing the foamable particles; and a cavity seal (6) between the first mould section (1) and the second mould section (2), comprising an inner seal (61) and an outer seal (62), wherein, in the closed position, the inner seal (61) and the outer seal (62) cooperate to block passage of foamable particles and fluids out of the cavity (3), and in the semi-closed position, the inner seal (61) allows passage of fluids and blocks passage of foamable particles out of the cavity (3).

Dependencies are inferred from the claim text.