Watkiss Automation Plockmatic PowerSquare 224, Рабочая тетрадь

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Machine Areas
Plockmatic PowerSquare™ 224 - Service Training Workbook
27
8.8 Trim
The book passes between two facing sets of conveyors in the trimmer infeed.
These conveyors move the book to the trim stop.
The distance of the trim stop from the trimmer blade is calculated by the PSQ
according to the size of the job. The PSQ applies an amount of trim according to
the size of the paper. The operator can change the amount of trim from the
touch screen if necessary.
The trim clamp and trimmer blade move forwards in one action to hold and trim
the book. The trim clamp and trimmer blade then return to their start position.
Offcuts are pushed into the trim bin by flexible fingers on one of the trimmer
infeed conveyor shafts.
The trimmer uses a chevron blade to apply balanced cutting pressure across
the width of the book. The chevron blade decreases to a minimum the shear
forces.
The drive for the trimmer blade and the trim clamp is transferred from the main
electric motor by a chain and clutch system. Rotary movement is changed to
linear movement with a crank mechanism.
Locate the following in the Trim Stop:

Trim Stop Axis Home Switch

Book at Trim Stop Optical Sensor

Trim Stop Guard Switch

Trim Stop Axis Motor Control PCB (900-212)

Trim Stop Axis Motor

Trim Stop Solenoids
Locate the following in the Trimmer:

Tacho - Magnet Ring Encoder

Hall Effect Switch

Trim Bin Full Optical Sensor

Trim Blade Proximity Switch

Bin Guard Switch - 1

Bin Guard Switch - 2

Trimmer Interface PCB (900-214)

Stacker Interface PCB (900-227)

Trimmer Clutch

Eject Roller Clutch