DEK INFINITY USER MANUAL.pdf.pdf - 第289页

INFINITY &21680$ %/(5( 3/(1,6+0(1 76 3$67(/2$ ',1* Soft ware Ver sion 7 User Manual 9.5 Auto Dispense An alternative to manual load ing of solder paste to the screen is given with the provision of an automatic…

100%1 / 356
INFINITY
&21680$%/(5(3/(1,6+0(176
3$67(/2$',1*
9.4 User Manual Software Version 7
Paste Removal During continuous printing operations paste residue build up may occur with the
same screen in use and with the squeegee option fitted. This build up can affect
the print quality of the print process, ie paste in apertures, paste ‘tramlining’ on
the screen and residue on the squeegees.
Before loading paste the operator should ensure that any residue is cleaned off
the screen and squeegees.
To clean the screen effectively, it is recommended that the operator removes the
screen from the machine during this operation (see Operator Manual - Product
Change over).
WARNING
RECOMMENDED SOLVENTS. ANY SOLVENTS USED MUST COMPLY WITH
LOCAL ENVIRONMENTAL GUIDELINES. DEK RECOMMEND USING SOLVENTS
THAT ARE ENVIRONMENTALLLY FRIENDLY, IE CFC FREE AND WATER BASED.
SOLVENTS USED MUST HAVE FAST EVAPORATION RATES AND FLASHPOINT
SPECIFICATIONS GREATER THAN 39ºC.
WARNING
SOLDER PASTE AND SOLVENTS. WHEN USING OR HANDLING ANY SOLDER
PASTE OR SOLVENT FORMULATION THE MANUFACTURERS’ RECOMMEND
SAFETY PRECAUTIONS MUST BE STRICTLY ADHERED TO.
WARNING
PROTECTIVE CLOTHING. APPROVED PROTECTIVE CLOTHING SHOULD BE
WORN BY SOLDER PASTE AND SOLVENT HANDLERS AT ALL TIMES TO
ELIMINATE FUME INHALATION, EYE CONTACT, SKIN CONTACT AND
INGESTION.
Remove paste from the screen and squeegees with a spatula and place in a
suitable container. Smear deposits are removed using a suitable cleaning cloth
dampened with a suitable solvent.
NOTE
Waste paste and contaminated cleaning cloths are to be disposed of in accord-
ance with local authority regulations.
INFINITY
&21680$%/(5(3/(1,6+0(176
3$67(/2$',1*
Software Version 7 User Manual 9.5
Auto Dispense An alternative to manual loading of solder paste to the screen is given with the
provision of an automatic paste dispenser. This is mounted to the rear of the
print carriage.
The paste dispenser uses either a 1 Kg or 500g cartridge. The 500g cartridge
requires the fitting of a sleeve which is an option. This enables any loading of
paste to be carried out without the need for the operator to handle the paste.
A slug inside the cartridge, travels down the cartridge as the paste is used. A
proximity sensor fitted to the side of the dispenser detects the metal content of
the paste. When the cartridge is empty the sensor initiates a ‘Print Medium
Low. Please Replenish’ warning window to the operator.
Programming into a
Product File
The paste dispense parameters can be setup when editing a product file for a new
product, although it may be more convenient to set these after the product has
been run for a while and paste requirements have been determined.
The parameters to be edited that affect the operation of the paste dispenser are:
Paste Dispense Rate:
This determines the frequency of the cycling of the paste dispenser. The setting
is gauged by running the product and noting the number of prints before paste
replenishment is required. This can be set to any number between 0 to 100 in
increments of 1.
Paste Dispense Speed:
This determines the speed at which the paste dispenser travels across the screen
and hence the amount of paste which is dispensed. This parameter needs to be
set in conjunction with the Paste Dispense Rate. This can be set to any number
between 10mm/s and 100mm/s in increments of 1mm/s.
INFINITY
&21680$%/(5(3/(1,6+0(176
3$67(/2$',1*
9.6 User Manual Software Version 7
To Enter Paste
Dispense Parameters
From the Status
Page
1. Press Setup (F6).
2. Press Edit Data (F3).
The following window is displayed:
3. Using the Next and Previous keys (F4 - F5) select the Paste Dispense Rate.
4. Using the Incr. and Decr. keys (F6 -F7) set the required rate.
5. Using the Next key (F4) select the Paste Dispense Speed.
6. Using the Incr. and Decr. keys (F6 - F7) set the required speed.
Run Head
Paste
Load
Clean
Screen
Adjust Setup Monitor Maint.
Mode
Load
Data
Edit
Data
Setup
Squeegee
Change
Screen
Change
Tooling
Change
Language
Exit
PASTE DISPENSE RATE
PASTE DISPENSE SPEED
PASTE WITH BOARD
ALTERNATE DISP
ALTERNATE DISP RATE
SCREEN CLEAN MODE 1
SCREEN RATE 1
SCREEN CLEAN MODE 2
SCREEN CLEAN RATE 2
CLEAN AFTER KNEAD
CLEAN AFTER DOWNTIME
CLEAN AFTER
DRY CLEAN SPEED
WET CLEAN SPEED
0
10
DISABLED
CENTRE
0
NONE
0
NONE
0
NONE
NONE
15
40
40
Prts
mm/s
Disp Cyc
Prts
Prts
minutes
mm/s
mm
.. more
Edit Current Process Parameters
Save Next Previous Incr. Decr. Exit
Save Next Previous Incr. Decr. Exit
Save Next Previous Incr. Decr. Exit
Save Next Previous Incr. Decr. Exit