Method of and device for producing concrete blocks

A method of producing concrete blocks, wherein each concrete block comprises a multiple-layer concrete block body with at least one even concrete block underside and, opposite the at least one even concrete block underside, an essentially flat concrete block upper side, wherein the multiple-layer concrete block body comprises a first concrete block layer designed as a facing concrete layer and forming the concrete block upper side, at least one second concrete block layer designed as a core concrete layer, as well as at least one third concrete block layer forming the concrete block underside, wherein at least one formwork is provided, and the method comprises the steps of:

• producing the second concrete block layer as the core concrete layer, wherein a core concrete is introduced into the formwork by a first filling device;
• wherein after introducing the core concrete, producing the first concrete block layer as the facing concrete layer, whereby a face concrete is subsequently filled into the formwork and wherein the core concrete introduced into the formwork is then compacted and hardened;
• and
• wherein before introducing the core concrete, in an initial step of the method to produce the third concrete block layer, a concrete material for the third concrete block layer is introduced into the formwork by a first dosing device.