03217917-01-01E By DEK Technical Reference Manual Vol 1_enPDFA - 第164页

11 SQUEEGEE MODULE 11.4 CALIBRATIONS 164 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 ► Ensure that the calibration jig (2) is secured to the mounting plate (3) as shown in the follow- ing graphic: A A S S 1 3 2 ► F…

100%1 / 292
11 SQUEEGEE MODULE
11.4 CALIBRATIONS
TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 163
11.4 CALIBRATIONS
11.4.1 Squeegee Pressure Calibration
Squeegee pressure calibration is carried out on machines, fitted with the Pressure Hardware op-
tion, after the following circumstances:
●
The squeegee mechanism is replaced
●
The strain gauge bridge in the squeegee mechanism is replaced
●
The rising table sensors have been replaced or adjusted
A force meter calibration jig and squeegee pressure plate are required to perform the squeegee
pressure calibration.
NOTE
1. Ensure that the rising table print reference height is set correctly before commencing, (the
calibration relies upon accurate positioning of the table to make a reference).
2. Ensure that the Pressure Hardware parameter in Maintenance\Machine Setup\Options is set
to FITTED.
Use the following procedure to calibrate the squeegee pressure:
WARNING
BOARD CLAMPS. EXTREME CARE MUST BE EXERCISED WHEN WORKING IN
THE TOOLING AREA OF THE MACHINE TO AVOID INJURY. THE FOILS ON THE
FRONT AND REAR BOARD CLAMPS ARE VERY SHARP.
► Select Open Cover Commands.
► Select Carriage To Rear.
► Select Unload Screen.
► Open the printhead cover.
► Remove the stencil from the machine.
► Remove the tooling from the manual tooling plate.
► Close the printhead cover.
► Press the System button.
► Select Back.
► Select Maintenance.
► Select Calibrations.
► Select Classic Calibrations.
► Select Pressure.
► Select Calibrat Readings.
The rails are checked for the presence of a board, the print carriage moves to the calibration posi-
tion, the rear rail moves to home position, the table homes and the board clamps are closed.
► The machine cover is unlocked and the message ‘Fit the pressure calibration rig’ is dis-
played with the following window:
CALIBRATION DATA
Gain Factor
1.02
► Open the printhead cover.
11 SQUEEGEE MODULE
11.4 CALIBRATIONS
164 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019
► Ensure that the calibration jig (2) is secured to the mounting plate (3) as shown in the follow-
ing graphic:
A
A
S
S
1
3
2
► Fit the calibration jig (4) to the front squeegee position.
O
OFF
I
ON
UNITS
Zero
MAX TXD
RESET
00.00
4
5
6
► Fit the squeegee pressure plate (6) to the rising table ensuring that the locating dowels (5) in-
sert the holes of the rising table.
NOTE
During the squeegee pressure calibration the dwell height of the rear squeegee is 15mm regard-
less of the set up value. This height is set during calibration only.
11 SQUEEGEE MODULE
11.4 CALIBRATIONS
TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 165
► Switch the force meter ON and check the reading is 0kg, (ensure the force meter is not in
contact with the squeegee pressure plate).
► Select Continue.
► The front squeegee mechanism steps down until a change in pressure is detected and contin-
ues stepping down until the pressure value stored on the machine is reached. If the calibration
jig displays 10kg, go to Calibration Complete.
► Select Jog Rig.
► Use the left and right jog buttons to move the front squeegee mechanism up or down until the
calibration jig displays 10kg.
NOTE
Achieving exactly 10kg may not be possible as some calibration jigs display down to three decimal
places.
Calibration Complete
► Select Set Calib..
► Select Exit.
► The front squeegee mechanism moves to the home position. The message ‘Confirm that the
pressure calibration jig has been removed.’ is displayed.
► Remove the calibration jig and the squeegee pressure plate from the machine. On completion
select Yes, the table resets, the print carriage moves to home position, board clamps open
and the rear rail moves to the board width setting.
► Carry out the 11.4.2 "Squeegee Reference Height (Pressure Feedback)" [}165] calibration.
11.4.2 Squeegee Reference Height (Pressure Feedback)
Squeegee reference height is carried out on machines fitted with the Pressure Hardware option
after the following circumstances:
●
Squeegee pressure calibration
●
Squeegee change
Use the following procedure to set the squeegee reference height:
► If a Ptest.dat file is required:
●
Select Maintenance.
●
Select Test Cycles.
●
Select Data Logging On.
●
Select Back.
●
Select Back.
► Select Setup Product.
► Select Squeegees.
► Select Unload Screen.
► Open the printhead cover.
► Remove the stencil from the machine.
► Close the printhead cover.
► Press the System button.
► Select Calibrate Heights.
► The message ‘Ensure that the correct squeegees are fitted!’ is displayed.
► Open the printhead cover.
► Fit the required squeegees to the front and rear squeegee mounts as detailed in the 11.3.2
"Fitting the Squeegees" [}161].
► Close the printhead cover.