MAGUIRE Gravimetric Gateway LineMaster, Установка, эксплуатация и обслуживание

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Maguire Products, Inc.
12
LineMaster

Overview - XC-2X LineMaster
®
Extrusion Yield Control w/ Extruder Drive Control
Monitors process throughput and take-off speed, controls extruder drive speed to maintain product
yield (weight per length)
Drive Speed Control
Component Installation
The system is comprised of a mass flow hopper assembly, a controller with operator interface, a
drive speed control package and an encoder.
The mass flow hopper is mounted on the throat of the extruder. A weigh hopper suspended from a
set of load cells provides the material flow data to the LIW controller. The drive speed control
package, which includes a digital potentiometer to replace the existing analog extruder speed pot,
is mounted in the control cabinet and monitors and controls the signal to the extruder drive. The
encoder or pulse generator is mounted on the haul off to monitor the speed of the line.
Principal of Operation
The XC-2X Extrusion Yield Control System is designed to maintain a products weight per length
(yield) by monitoring the material consumption of the process through the mass flow hopper on the
throat of the extruder in kilos per hour, and collates the data with the line speed monitored by an
encoder mounted on the shaft of the haul off in meters per minute to provide a calculated actual
product yield in grams or kilograms per meter. The actual yield is compared to a desired target
yield of the product entered on the LIW controller. The LIW controller communicates to the XCD-X
Extruder Drive Speed Control, which adjusts the voltage or reference signal to the extruder drive,
which will increase or decrease with respect to the line speed to maintain the desired yield.
A digital potentiometer replaces the existing rotary drive speed control on the extruder drive panel
and communicates with the XCD-X Drive Speed Control which is mounted in or on the control
cabinet and is connected to the LIW controller.
aspc0910
LIW w/ XCC
Encoder
XCE-01
M
EXTRUDER
Product
XCD-X
aspc2210