Pre-deformer for galvanized stranded wire

The utility model discloses a pre-deformer for a galvanized stranded wire. The pre-deformer comprises a hollow shaft, a flat key, a first tapered disc, a second tapered disc, a third tapered disc, a worm wheel, a double-way threaded rod and a locating screw. A key groove is formed in the outer circumferential face of the hollow shaft. The flat key is arranged in the key groove and fixedly connected with the hollow shaft. The hollow shaft and the flat key penetrate through the first tapered disc, the third tapered disc and the worm wheel in a sleeved mode. The worm wheel is fixedly connected with the flat key. The first tapered disc and the third tapered disc can slide left and right relative to the flat key. The locating screw fixedly connects the double-way threaded rod with the worm wheel. The worm wheel penetrates through the second tapered disc in a sleeved mode. A worm is fixedly connected to the side of the second tapered disc. The pre-deformer has the advantages that the structure is simple, operation is convenient, the deforming interval and the pre-deforming amount of steel wires twisted into the stranded wire can be rapidly and accurately adjusted, steel wire deformation is even, and the effect is good.