Die holder

The drawing block is the welded structure, it is divided into front and rear cavities. A guide roller is installed at the entry point to ensure that the wire enters the dies. The power to move the roller is provided by a small cylinder, and a corresponding electrical signal is output to the sensor to fine-tune the rate of change. The adjusting roller for wire tension is adjusted by changing the air pressure in the pressure range of 0.15-0.6 MPa.