Enhancement of Copper Wire Lengthening Automatic System using Contactless Heater

Abstract

Copper wire can be elongated to a very thin size like 0.01 mm from an original 0.6 mm via wire drawing dies. Although automatic machines are available for wire elongating process, the wire threading through dies still requires a human operation before entering an automation process. This procedure may repeat up to tens of times to complete, taking a long time. To resolve this problem, this paper develops an adjustable automatic wire copper wire drawing system for elongation using contactless heater. Three pneumatic claws are designed in the proposed system. The first claw is used to clamp the wire. The second claw fixed in the rotating mechanism is to draw the heated wire. The third claw is used to move the wire going through the drawing die after the drawn wire is cut off in one side. Then, the wire will be drawn again through the die mold. The force amount for drawing the wire can be adjusted via the gear connection controlled by the serer motor. Therefore, the system can be suited for variety of copper wire sizes. The experimental results prove that the proposed system has achieved the automatic copper wire elongation process successfully. Also, the human loading can be reduced considerably, and more importantly the operation time can be decreased significantly.

Keywords

• Copper wire
• contactless heater
• human machine interface (HMI)
• PLC
• gripper