Description of Operation
14
Plockmatic PowerSquare™ 160 - Service Training Workbook
3.4
Paper Transport
Figure 11. Belts, flights and sensor pins
• Flights (fingers) on the belts push the set through the machine from the
gathering area via the staple area and to the fold area.
• The belts run the length of the endlays and are moved by stepper motors. Each
endlay has two belts with flights that can move in opposite directions to increase
and decrease the distance between the flights according to the size of the book.
The belts can also run in the same direction to move the book through the
machine.
• The belts are independently driven by stepper motors.
• Each flight has a metal reference pin that interrupts optical sensors as the belts
move. From this, the machine knows the position of the flights and can then
adjust the position as needed for different sizes of paper.
• Additionally, one flight per side has a magnetic index pin that is seen by a sensor
and provides the index position.
3.5
The Staple Heads and Clinchers
• There are 2 staple heads that fire upward from below the deck. The clinchers are
mounted above the deck.
• The staple heads are in a fixed position, side-to-side, on the centre line of the
machine and form the datum from which measurements for the endlay set-up
are taken.
• The staple heads can move toward each other or away from each other along
the centre line of the machine to give a variable staple pitch. The clinchers move
to match the spacing of the staple heads. The staple head and clincher axes are
adjusted by stepper motors.
A
LH endlay
B
Top belt
C
Sensor pin
D
Flight attached to the top belt
E
Sensor pin
F
Flight attached to the bottom belt
G
Bottom belt
A
B
C
D
E
F
G
Summary of Contents for Morgana PowerSquare 160
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