Machine for vertical casting of pipes of concrete or a similar material in a mould system with a distributor wheel

A machine for the substantially vertical casting of pipes of concrete, which comprises:

• an outer mould part;
• an inner mould part axially displaceable within the outer mould part and radially spaced from the outer mould part during casting to form a ring gap between the mould parts, the inner mould part having an upper end portion terminating in an upwardly converging cone;
• an axially journalled distributor wheel rotatably mounted atop the inner mould part, the distributor wheel having a plurality of radially extending blades with lower edges spaced from and following an upper surface of the cone, the blades having a helicoid shape directed rearwardly with respect to the rotational direction of the wheel, so that during the casting, as the concrete is supplied downwardly into the outer mould part and the inner mould part is displaced axially upwardly in the outer mould part, rotation of the wheel causes the blades to press concrete downwardly and outwardly along the upper surface of the cone and into the ring gap;
• and
• at least one vibrator in an upper portion of the inner mould part for vibrating the inner mould part, the distributor wheel being mounted to the inner mould part such that vibration of the inner mould part causes the simultaneously vibration of the distributor wheel and the blades so as to transmit vibrations to concrete passing through the distributor wheel.