Design Modification of Drawing-car of Dual-chain Drawing Mill

The existing drawing car is modified with a dual-hook design.Thanks to the modification，upon ending of the first drawing operation，the hook is automatically disconnected from the chain，and then，the drawing car is pulled by the quick-returning mechanisms，and goes back quickly to the die holder，and ready for the next drawing operation.In this case，the car can return back quickly without being pulled in reverse by the main drive system，which successfully fixed the problem that previously stayed with operation of the dual-chain drawing mill， i.e.，frequent chain breaking and low productivity.The modified dual-chain drawing mill has advantages like high drawing accuracy and high productivity，and moreover the disadvantage of the conventional dual-chain drawing mill，i.e.，frequent chain breaking is eliminated.