Product category:
Drives, motors and power transmission, couplings, clutches
News Release from: Lenze | Subject: Servo PLC combining drive and PLC functionality
Edited by the Manufacturingtalk Editorial
Team on 10 August 2005
PLC and drive combine to speed pipe
coiling
A servo PLC combining drive and PLC functionality with programming to IEC61131-3 has automated high speed extruded pipe coiling machines.
Pipe Coil Technology of Wallsend uses Lenze drive and automation equipment for its coiling machines A turretting double head machine is typical for winding large bore plastic pipe, such as is used for gas or water, after it is produced on an extruder
This article was originally published on Manufacturingtalk on 1 Apr 2003 at 8.00am (UK)
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Lenze supplies all the drive equipment for this innovative high-speed machine which allows a single operator to supervise both the extruder and the coiler.
The level of automation is so high that the operation normally needs no involvement in the coiling process.
At the heart of the machine is a Lenze Servo PLC combining drive and PLC functionality with programming to IEC61131-3.
Costs for a separate PLC are avoided.
Another big saving comes from the Lenze distributed I/O system using CANbus.
As well as reducing the cabling time, this allows major savings on the slip rings to the turretting heads.
The CAN system bus is integrated into the Lenze equipment.
Communication is therefore easy between the master Servo PLC and the coil winding drives in the head, which are Lenze geared motors fitted with motec IP65 terminal box inverters.
Lenze also supplied other geared motors, a linear actuator for the pipe feed, and a colour touchscreen for operator supervision of the machine.
In operation the machine begins by feeding a new pipe onto the coil former.
Winding begins and the pipe is fed evenly by tracking across the coil width.
At a measured length the head turrets round, the pipe is cut and process begins again on the second coil former.
Automatic strapping or shrink wrapping of the finished coil completes the process.
The integrated package of drive and automation equipment from Lenze contributes to the high-speed operation of the machine.
A single pipe coiler can handle the output of up to five extruders through an accumulator and payoff system.
Compared with the normal 1:1 matching of the machine elements, this gives a massive saving in purchase cost and the space required. Request a free brochure from Lenze ...
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