88242361-04-01 Vol 1 DEK TQ TECHNICAL REFERENCE (1).pdfPDFA.pdf - 第123页
8 SQUEEGEE MODULE 8.1 OVERVIEW TECHNICAL REFERENCE MANUAL DEK TQ 04/2021 123 8 SQUEEGEE MODULE 8.1 OVERVIEW 2 1 3 4 6 5 7 8 1 Print Carriage 5 Squeegee Mounting Feet 2 Squeegee Mechanism 6 Front Squeegee 3 Rear Squeegee …
7 PRINT CARRIAGE MODULE
7.3 CALIBRATIONS
122 TECHNICAL REFERENCE MANUAL DEK TQ 04/2021
14. Select Temperature Offset.
15. Calculate the difference between the temperature gauge and the machine display.
NOTE
If the digital temperature gauge reading is 21
o
C and the machine temperature reading is
22.1
o
C then the offset needs to be +1.1
o
C.
16. Set the temperature offset required.
17. Select Accept.
18. Select Save And Exit.
19. Select Confirm.
20. Select Exit.
8 SQUEEGEE MODULE
8.1 OVERVIEW
TECHNICAL REFERENCE MANUAL DEK TQ 04/2021 123
8 SQUEEGEE MODULE
8.1 OVERVIEW
2
1
34
6
5
7
8
1 Print Carriage 5 Squeegee Mounting Feet
2 Squeegee Mechanism 6 Front Squeegee
3 Rear Squeegee Stepper Motor 7 Rear Squeegee
4 Front Squeegee Stepper Motor 8 Squeegee Drip Tray
The squeegee mechanism is driven backwards and forwards across the stencil by the print car-
riage.
The squeegee mechanism incorporates two stepper motors to drive the two squeegees independ-
ently down onto the stencil when a print stroke is required. During the rearward stroke, the front
squeegee is in contact with the stencil performing a rear print stroke. During the forward stroke, the
rear squeegee is in contact with the stencil performing a forward print stroke.
8 SQUEEGEE MODULE
8.1 OVERVIEW
124 TECHNICAL REFERENCE MANUAL DEK TQ 04/2021
The pressure being applied during the print stroke is measured by a load cell (located in the spring
beam assembly of the squeegee mechanism) and if necessary, a correction to the pressure is
made by the software. The electronics for monitoring the squeegee pressure (load cell) is on the
conditioning board which is detailed in 7.1.1
"Conditioning Board" [}115].
8.1.1 Sensor Locations
1
3
2
5
4
View on Rear of Squeegee Mechanism
1 Rear Squeegee Home Sensor 4 Paste Roll Height Monitor Sensor
2 Load Cell 5 Front Squeegee Home Sensor
3 Spring Beam Assembly