Wenzhou Tianwei Machinery Development of Multi station Cold Heading Machine in China

Multi station automatic cold heading machine belongs to the category of wire forming automata in forging machinery. It is an efficient and automatic forging machinery. It mainly uses coiled materials or bars as raw materials to continuously produce standard parts such as bolts, nuts, pins, steel balls and rollers, as well as cold formed parts with complex shapes and automotive parts such as bevel gear shafts, ball pins and spark plugs. It is a machine that can achieve less and no cutting process.

Multi station cold heading machine has developed rapidly in Europe, America, Japan and other industrial developed countries, and its use is expanding. At present, the main producing countries are the United States, Japan, Germany, Italy, Britain and other industrial developed countries. Multi station cold heading machine is characterized by large volume, heavy machine weight and large upsetting force. Wire rods can be upset into semi-finished products of bolts and more complicated special-shaped parts. It has advanced safety protection and automatic monitoring functions, which can automatically stop and display the fault position in case of failure.

Five Points for Attention in Cold Heading Machine Operation

The diameter of steel bar or steel wire shall meet the requirements of cold upsetting machine, and the steel bar (wire) that is too thick or thin shall not be cold upset; 2. Within the allowable range of the cold heading diameter of the punching and upsetting machine, the position of the clamp (screw in or screw out) can be adjusted according to the required anchor head size, so as to obtain the appropriate reinforcement (wire) extension allowance; 3. Rust removal and straightening shall be carried out in the 120~130mm area of the cold heading part of the reinforcement (wire) of the multi station automatic cold heading machine; 4. The end of the cold heading machine reinforcement shall be ground flat to ensure the accurate shape of the cold heading anchor head; 5. After steel bar upsetting such as multi station cold upsetting machine, tensile test shall be conducted to check whether the strength of anchor head is qualified. 　

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