88242361-04-01 Vol 1 DEK TQ TECHNICAL REFERENCE (1) - 第34页
4 MACHINE OVERVIEW 4.1 MODULE OVERVIEWS 34 TECHNICAL REFERENCE MANUAL DEK TQ 04/2021 4.1.4 Print Carriage Module The print carriage is the vehicle that transports the following: ● Squeegee Module ● Squeegee Drip Tray ● S…
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4.1.3 Machine Control Module
The machine control system is the central hub controlling machine motion. This consists of:
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Machine Controller (PC)
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Extended Power Module (EPM)
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Controller Power Module (CPM)
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Encoder Serial Input or Output (ESIO) Modules
Machine control is an interface between the software and:
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Motors
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Sensors
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Switches and Solenoids
3
2
1
1 ESIOs (Upper Frame) 3 ESIOs (Lower Frame)
2 Control System
(PC, CPM and EPMs)
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34 TECHNICAL REFERENCE MANUAL DEK TQ 04/2021
4.1.4 Print Carriage Module
The print carriage is the vehicle that transports the following:
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Squeegee Module
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Squeegee Drip Tray
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Stencil Load Mechanism
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Paste Roll Height Laser
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Coplanarity Lasers
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Temperature and Humidity Sensors
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5
4
3
2
1
1 Squeegee Mechanism 4 Squeegee Drip Tray
2 Coplanarity Laser (in 2 positions) 5 Stencil Load Paddle
3 Paste Roll Height Laser 6 Temperature and Humidity Board
4.1.4.1 Squeegee Module
The function of the squeegee module is to apply the print material through the stencil image onto
the board in a controlled manner. Squeegee downward pressure is monitored during the print
stroke to optimize the print quality.
4.1.4.2 Stencil Load Mechanism
The stencil load mechanism automatically loads the stencil to the correct position in the chase.
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4.1.4.3 Paste Roll Height Laser
The paste roll height laser measures the height of the paste roll in front of the front squeegee dur-
ing a rearward print stroke.
4.1.4.4 Coplanarity Lasers
There are two coplanarity lasers mounted on the print carriage. During coplanarity calibration, the
lasers measure the difference between the top of the transport conveyors and the stencil in four po-
sitions.
4.1.4.5 Temperature and Humidity Sensors
The temperature and humidity sensors are mounted on the back of the print carriage, monitoring
the print area. The results are displayed on the HMI monitor.
4.1.5 Camera System Module
The camera system module is used for the following functions:
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Use visual information to align the stencil to the product board
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Use visual information for board or stencil inspection
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Provide visual information for the user on the HMI monitor
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Stops the board in the correct position for printing
The camera traverses in the X direction within the camera carriage using a linear motor. The cam-
era carriage traverses in the Y direction using a linear motor on the Y drive. The Y drive is also
shared by the under stencil cleaner.