Concrete block producing device and method for producing at least two-coloured concrete blocks

摘要

The invention relates to a concrete block producing device and to a method for producing colored concrete blocks using a concrete block producing device including a block molding machine with a block mold that can be supplied with fresh concrete from a concrete hopper. The concrete hopper can be supplied with portions of at least two differently colored fresh concretes in a controlled manner by a dosing device. The dosing device includes at least two dosing chambers and a transport device for transporting the differently colored fresh concrete portions to the concrete hopper. The transport device includes at least one positioning unit for guiding the colored fresh concrete from the dosing chambers to the concrete hopper. The positioning unit is designed to supply defined positions in the concrete hopper with differently colored fresh concrete portions.

主权项

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.