Machine for making concrete pipes

Details Machine for making concrete pipes Machine for making concrete pipes

1992-09-11

1993-09-28

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

364473, 364476, 425150, 425166, 425262, 425424, 425427, 425456, 425457, B28B 2128

Patent

active

052482480

ABSTRACT:
A concrete pipe making machine having a pair of combined roller head and vibrating core assemblies are used with two molds to prepack and vibrate concrete within the molds to simultaneously produce two concrete pipes. A controller is programmed in response to packing forces of the packerheads to control conveyors that discharge concrete into the molds and the lift speed of the packerhead and core assemblies to produce concrete pipes having uniform density throughout the length of the concrete pipes.

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