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2 STINGER, A GUIDE TO ADHESIVE DOT DISPENSING 2.4 PRODUCT CHANGEOVER GUIDE TO ADHESIVE DOT DISPENSING STINGER 03/2021 45 Measurements are made reference to X=0, Y = 0 10 Steps 50 Steps 100 Steps 100, 80 (Purge Process Po…

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2 STINGER, A GUIDE TO ADHESIVE DOT DISPENSING
2.4 PRODUCT CHANGEOVER
44 GUIDE TO ADHESIVE DOT DISPENSING STINGER 03/2021
2.4.1 Product Changeover Page
On the Product Changeover page, accessed by selecting Product Changeover on the Ready page,
the Stinger dispenser plus button is available. When selected, the Stinger dispenser plus changes
to a minus and a Stinger button stack is presented as shown below.
This functionality is a repeat of that described previously in the software interface section of this
manual:
●
Calibrate Nozzle Offset
●
Purge Process
●
Manual Calibrate
●
Auto Calibrate
●
Maintain Stinger
2.4.2 Creating a Calibration Test Product
A calibration test product is a useful tool to have and can be created using a blank board. The
checklist for the test product should include positional accuracy tests and deposit consistency
checks.
Running a test product pre-production, exercises the system and eliminates any minor discrepan-
cies that may occur due to the physical properties involved in the process.
An example of a test product representative of a production board follows.
2 STINGER, A GUIDE TO ADHESIVE DOT DISPENSING
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GUIDE TO ADHESIVE DOT DISPENSING STINGER 03/2021 45
Measurements are made reference to X=0, Y = 0
10 Steps
50 Steps
100 Steps
100, 80
(Purge Process Point)
Dispense
Dispense
Dispense
Top Left 10, 150
Bottom Left 10, 10
Bottom Right 210, 10
Sacrificial Purge Points
Top Right 210, 150
Measure
Measure
Measure
Measure & Dispense
2.4.2.1 Fiducials
NOTE
Moving fiducial locations, during product run, may affect the location of sites. If 2Di or HawkEye are
used in conjunction with Stinger; moving sites results in a new pre-image being taken. In this in-
stance, a screen clean should be performed to ensure good pre-image quality. Site corrections do
not need to be applied if fiducial locations are moved during setup.
2.4.3 Syringe Removal and Replacement
WARNING
HARMFUL SUBSTANCES. CLEANING WIPES AND CLEANING SOLUTIONS MAY
CONTAIN SUBSTANCES HAZARDOUS TO HEALTH. WHEN USING CLEANING
WIPES AND CLEANING SOLUTIONS THE MANUFACTURERS’ SAFETY DATA
SHEETS MUST BE STRICTLY ADHERED TO.
MANDATORY
TOXIC SUBSTANCES MAY BE PRESENT. SAFETY GLOVES MUST BE WORN.
MANDATORY
TOXIC SUBSTANCES MAY BE PRESENT. EYE PROTECTION MUST BE WORN.
1. Remove the replacement syringe assembly from refrigeration and allow the temperature to
rise in accordance with the manufacturers’ recommendations. Remove the end dust cap.
2. Select Unload Board. Choose the preferred remove board method or manual.
2 STINGER, A GUIDE TO ADHESIVE DOT DISPENSING
2.4 PRODUCT CHANGEOVER
46 GUIDE TO ADHESIVE DOT DISPENSING STINGER 03/2021
3. Select Unload Screen. Open the printhead cover and remove the screen. Close the printhead
cover and press the System
button to restore system power.
4. Select Maintain Stinger.
5. Open the cover; the camera axis is located at the front of the printer where the applicator can
be removed. If necessary, move the print carriage back to gain access to the print area.
6. Slacken off the auger clamp screw (1).
1
2
3
5
4
6
7. Release the auger (5), nozzle (4) and syringe (2) as one assembly from the drive gear and the
‘C’ clamp.
8. Remove the pneumatic air connector (3) from the rear of the syringe assembly.
9. Store part-used assemblies in a refrigerator or dispose of the whole assembly in accordance
with any national, federal or local disposal regulations.
10. Remove the syringe sealing cap.
11. Fit a replacement auger and nozzle to the syringe.
12. Fit the pneumatic air connector to the rear of the syringe assembly.