22
No part of this document may be reproduced, stored in retrieval system or transmitted by
any means, electronic, mechanical, photocopying, recording or otherwise, without written
permission from Tri-Star Technologies.
Fig.4.6. Pulling mechanism and coiling pan.
The bottom stepping motor along with its pulling belt is mounted on the air cylinder
actuated by the toggle switch. That opens the gap between the belts for easy loading/unloading of
a new wire. Belts pressure on the wire is controlled by the air pressure regulator on the back of
the system (Fig.4.7). Standard pressure is set around 30 psi; however, it can vary depending on
the wire gauge and mechanical properties of the insulation. Belts can be easily removed from the
pulleys and replaced by loosening belt tension rollers.
Fig.4.7. Pressure regulators and Electrical panel.
PLC controls the movements of pulling belts by supplying pulses of appropriate
frequency to the stepping motor drivers. It pulls the wire for a specified length then stops the
wire and activates laser-scanner system for printing a message. This step is repeated over and
Coiling pan
Coiling Motor
Speed Regulator
Coiling
Pan Driver
Pressure
switch
PLC
Stepping
Motor
Drivers
Scanalone
Board
Scanner
+/-15VDC
Power Supply
K1- power
distribution
board
Signals
amplifiers
and resistors
board
