Autocutting extrusion machine for producing prestressed concrete cored articles
AssigneeBuilding Machines Developing Company of the Ministry of Nuclear Energy Industry
InventorsDeguo Ren, Lu Yonghong
Life of this patent
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Abstract
The present invention of an extrusion machine for forming prestressed concrete cored slabs includes a mechanism for cutting and core-plugging a molded concrete slab into sections having both ends plugged. The extrusion machine is capable of forming several transverse ribs at intermediate positions along the slab. The mechanism includes a cutting blade, blade cylinder, blade vibrator, supplement feed device, supplement feed plate, supplement feed plate cylinder, a hydraulic system and means for movement of the machine. The extrusion machine is able to produce directly high quality prestressed concrete cored narrow and large size slab units.
Claims10
An extrusion machine for making prestressed concrete cored slab sections, said extrusion machine comprising:
- movable support means for extruding an outside surface of a molded concrete slab;
- a spiral conveyor rotatably mounted to said support means for transferring and compacting concrete within said movable support means and producing cores in said molded concrete slab;
- drive means for driving said spiral conveyor, said drive means being supported by said support means;
- position-restraining means for guiding said extrusion machine along a pathway on a work surface on which said concrete cored slab is being formed, said position restraining means being operably associated with said movable support means;
- a movable hopper for feeding concrete to said movable support means, said movable hopper having support means for providing independent support and movement of said hopper with respect to said movable support means, wherein said movable hopper is operably associated with said support means;
- and
- cutting means having core-plugging means attached thereto for cutting said molded concrete slab into sections with said cores of each section being plugged at both ends.
Dependencies are inferred from the claim text.