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AssigneeLimited Liability Company Composite Group Chelyabinsk
InventorRamanathan NEELAKANDAN KRISHNA
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The invention relates to the field of construction, namely to equipment for the production of FRP composite rebar containing a spiral winding, which is used for reinforcing concrete structures and products. A device for twisting roving threads, including a frame, flywheels, a rod system, a thread layout on a smooth shaft, clamshell rods, a folding beam, removable spools mounted on drive axles, drives. At the same time, in the lower part of the frame, under the action of the drive, flywheels rotate around their axis with roving reels of the standard format (260 mm high; 185 mm in diameter; weighing 9-15 kg). From each reel, the threads are rewound through the rod system and the folding beam to rotating removable spools fixed on the drive axles. Thus, the quality of the produced FRP composite rebar increases, namely, the tensile strength of adhesion to concrete increases, due to the application of a periodic profile from roving threads that have passed the process of preliminary axial twisting.
A device for twisting roving threads designed for the periodic profile of FRP composite rebar, including a frame, flywheels, electric drives, a thread layout on a smooth shaft, removable spools fixed to the axles, thread spreader rods, a folding beam installed above the spools, characterized by the fact that the thread twisting occurs due to the rotation of the roving reels simultaneously with the coil and the layout twisted thread on spools used for installation in the periodic profile formation unit of the FRP composite rebar line.
Dependencies are inferred from the claim text.