Abstract: Disclosed is a measurement device for a vibration device of a concrete-block production plant. The vibration device has a vibrating table and impact strips arranged parallel to each other and parallel to the ground with relation to their longitudinal axes. The measurement device comprises at least one measurement unit for distance. The measurement unit is arranged above the vibrating table and the impact strips, wherein the measurement unit can be guided orthogonally to the impact strips and parallel to the ground using a guide unit. During the guiding process, the measurement unit operates at predefined measuring positions and/or positions determined during the guiding process via the impact strips and the vibrating table, using the measurement unit, the vertical distances from the top sides of the impact strips and/or the vibrating table to reference positions, which result from the heights of the measurement unit at the respective measuring positions, can be determined.

Abstract: Disclosed is a vibration device with a vibrating table for a concrete block manufacturing machine for compression of a material to be compressed. The vibration device is at least partially resiliently mounted on a machine frame and driven by at least one electric motor. As a result the vibrating table can be set in a predominantly vertical vibrating movement, wherein the vibration device has a plurality of vibrating table bars arranged parallel to one another and fastened to the vibrating table and impact bars fastened statically to the machine frame. All the impact bars are displaceable relative to the vibrating table bars and along a displacement axis running parallel to the vertical vibrating movement by a plurality of positioning devices connected to one another and driven by at least one common drive unit in order to obtain a synchronous displacement of all the impact bars.