Micron Technical Reference V9 Volume 1 - 第111页
PRINTER OVERVIEW MACHINE PRINT CYCLE Chapter Issue 11, Jan 17 Technical Reference Manual 4.17 MACHINE PRINT CYCLE The following, is a typical machine print cycle (RS transport rail system), with camera mounted board stop…
PRINTER OVERVIEW
MODULE OVERVIEWS
4.16 Technical Reference Manual Chapter Issue 11, Jan 17
Foreign Machine
Interface (FMI)
Module
The FMI provides a communications link between upline/downline machines
and the DEK printer.
The FMI pod, fitted to the rear of the printer, is used to communicate with upline/
downline machines using SMEMA, Fuji or Panasonic interfaces.
NOTE
Type 4 printers, the FMI pod is accessed from the front of the printer.
The Multi-Interface Unit (MIU), fitted inside the front cover of the printer, is used
to communicate with upline/downline machines using all other protocols.
Figure 4-19 Foreign Machine Interface
PRINTER OVERVIEW
MACHINE PRINT CYCLE
Chapter Issue 11, Jan 17 Technical Reference Manual 4.17
MACHINE PRINT CYCLE
The following, is a typical machine print cycle (RS transport rail system), with
camera mounted board stop and squeegees/paste dispenser used as the paste
applicator system:
1. Print is selected, the printhead cover lock is engaged and the rising table
carries out a rail lifted check.
2. The camera positions itself at the board stop co-ordinates.
3. The print carriage moves to the start of the print stroke and both squeegees
drive to their set dwell height. The chase clamps are applied clamping the
chase in position.
4. The board is transported into the printer stopping at the board stop.
5. The transport belts stop running as soon as the board stop sensor detects
the board.
6. The board clamp mechanism operates, clamping the board in position and
the board stop retracts.
7. The camera carriage drives to the position determined by Fiducial 1 X & Y
co-ordinates.
8. The print carriage is driven to its enhanced start position and the appropriate
squeegee is driven down to start height.
9. The rising table carries out a rail lift check and drives up to vision height.
10. The vision data window displays the board fiducial on the left and the stencil
fiducial on the right of the split display.
11. The fiducials are located and a small blue cross with the fiducial outline
appears in the centre of each fiducial on the split display indicating success-
ful location.
12. While the camera drives to Fiducial 2 X and Y coordinates, the location of
the Fiducial 1 board and stencil fiducials are copied to the align data
structure.
13. Fiducial 2 board and stencil fiducials are located.
14. The chase clamps are de-energised and the stencil actuators carry out a
rough alignment on the stencil. The chase clamps are re-applied securing
the stencil.
15. The camera relocates Fiducial 1 and 2 On completion, the camera carriage
drives to its home position.
16. The chase clamps are de-energised and fine alignment on the stencil is
carried out. On completion, the chase clamps are re-applied.
17. The relevant squeegee is driven down to make contact with the stencil with
0.5kg force.
18. The rising table drives up to the print height.
19. The appropriate squeegee is driven down to the calculated pressure setting,
as set in the board parameter menu.
20. The print carriage drives in the appropriate direction to perform a print
stroke.
21. The squeegee mechanism releases full pressure but keeps the squeegee
PRINTER OVERVIEW
MACHINE PRINT CYCLE
4.18 Technical Reference Manual Chapter Issue 11, Jan 17
in contact with the stencil with 0.5kg force (hold height).
22. The rising table is lowered to separation distance at separation speed. Once
separation distance has been reached the rising table accelerates to its
normal speed, lowering the table to transport height. The board clamps are
released and the relevant squeegee is raised to dwell height.
23. The front and rear transport belts drive until the board is detected at the
output sensor and the chase clamps are released.
24. The board count, paste dispense and screen cleaner cycle counts are
incremented. If either the paste dispense or screen cleaner counts has
reached the values set by the dispense rate or clean screen rate, the
appropriate cycle is performed.