The invention relates to a full-automatic reciprocating
sand sample preparing instrument which is characterized by comprising a
rigid frame, wherein the
rigid frame is fixedly connected with a vertical lifting
system, a moving cross beam is fixedly connected with the vertical lifting
system, a horizontal moving
system is fixedly connected with the moving cross beam, a moving
carriage is fixedly connected with the horizontal moving system, a funnel
assembly is hoisted at the lower end of the moving
carriage,
distance measuring equipment is fixedly connected with the funnel
assembly, a PLC (
programmable logic controller) is fixedly connected with the
rigid frame; the vertical lifting system, the horizontal moving system and the
distance measuring equipment are respectively electrically connected with the PLC. According to the working process, sand in the funnel is subjected to sand rain scattering by virtue of a duckbill, the
distance measuring equipment is used for monitoring the distance between the funnel
assembly and the sand surface in real time, the horizontal moving system is used for driving the funnel assembly to move horizontally, a guide assembly is used for guiding for the moving
carriage and the funnel assembly, the vertical lifting system is used for regulating height and controlling the falling distance of sand in
sample preparation, and the PLC is used for controlling the operation of a speed control motor, thus realizing
automation of the whole course of
sample preparation of the system.