Printer 710-810 v9 ProFlow ATX.pdf - 第5页
PROFLOW ATX OVERVIEW Chapter Issue 6, Jan 16 Technical Reference Manual 12.5 A T x M o v e m ent (Y Ax i s) Z-Ax i s Sys te m P re ssu re D own Thro ug h C entre o f T ran sf er H ead Unit T ransfer Head Unit Print Mediu…
PROFLOW ATX
OVERVIEW
12.4 Technical Reference Manual Chapter Issue 6, Jan 16
As the trailing wiper moves across the stencil, a shearing action collects any
remaining print medium.
Figure 12-2 Transfer Head Internal Mechanism
System Pressure The System Pressure is a programmable parameter that controls the contact
pressure of the transfer head against the stencil. As the transfer head moves
across the surface of the stencil, it must have enough downwards pressure to:
• Ensure that the side skis and wipers provide the enclosed environment
preventing any print medium leakage.
• Allow the trailing wiper to remove the excess print medium from the surface
of the stencil during printing.
The system pressure is maintained by a Z-axis stepper motor, which lowers and
raises the ProFlow ATx system. Based on a preset parameter, the motor turns
a leadscrew that precisely positions the transfer head’s wipers and skis against
the stencil.
NOTE
It is important for the transfer head to be aligned vertically to ensure that the
contact pressure on both wipers is equal.
View on Top (side and top sections cut away)
Crosshead Piston
Conditioning Grid
Archimedes Screw
PROFLOW ATX
OVERVIEW
Chapter Issue 6, Jan 16 Technical Reference Manual 12.5
ATx Movement (Y Axis)
Z-Axis System Pressure
Down Through Centre of
Transfer Head Unit
Transfer Head Unit
Print
Medium
Z Axis Motor
Z Axis Screw
View on Left Side
Stencil
Board
Wiper (2 Positions)
PROFLOW ATX
OVERVIEW
12.6 Technical Reference Manual Chapter Issue 6, Jan 16
Print Medium
Pressure Two pneumatically driven print medium pressure pistons are located on top of
the transfer head; during conditioning and printing these pistons exert an even
downwards force on the crosshead piston.
As it presses down on the print medium, the seal on the crosshead printer flares
out creating a pressurised environment within the conditioning chamber. This
flaring prevents any print medium from leaking past the seal.
Print Medium
Pressure Piston
Print Medium Pressure Causes
Flare on Crosshead Piston Seal
Archimedes Screw
Conditioning
Grid
Print Medium
Cross Section on Left Hand Side of Transfer Head
Crosshead Piston