Patent ID: 9636842
Date: 2017-05-02
CPC Classifications: B28B,B30B

Claim:
1. A concrete block producing device comprising: a concrete hopper: a block machine having a stone mould that can be fed with fresh concrete from the concrete hopper; a dosing device configured to fill the concrete hopper in a controlled manner with portions of at least two differently coloured fresh concretes, the dosing device having at least two dosing chambers and a transport device to transport the differently coloured fresh concrete portions to the concrete hopper; wherein the transport device has at least one positioning element for receiving and guiding the coloured fresh concrete from the dosing chambers into the concrete hopper that is at least partially arranged at or in the concrete hopper wherein the positioning element is configured as an at least partially downwards extending positioning duct fixed at an end turned away from the concrete hopper and includes at least one of a flexible tube, telescopic pipe and pipe swivelable about the fixed end for being fed and the end of the positioning duct facing the hopper side is configured to be positioned about the internal base area of the concrete hopper by a movement lying in a substantially vertical plane for feeding differently coloured fresh concrete portions at predetermined positions in the concrete hopper.