Printer 710-810 v9 ProFlow ATX.pdf - 第7页
PROFLOW ATX OVERVIEW Chapter Issue 6, Jan 16 Technical Reference Manual 12.7 Print Medium Recharging At the end of a print st roke, if the print medium demand senso r detects that the print medium level is low , the ProF…
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
PROFLOW ATX
OVERVIEW
Chapter Issue 6, Jan 16 Technical Reference Manual 12.7
Print Medium
Recharging
At the end of a print stroke, if the print medium demand sensor detects that the
print medium level is low, the ProFlow ATx system recharges the transfer head
from the print medium cartridge.
Figure 12-3 Demand Sensor
During the recharge process, the print rails remain raised to support the transfer
head, and system pressure is applied to the ProFlow ATx system to prevent any
leakage. The print medium pressure is released, raising the crosshead piston
and creating a void in the conditioning chamber. Pneumatic pressure is applied
to the print medium cartridge driving print medium to the transfer head inlet and
on to the Archimedes screw. The Archimedes screw rotates for a set period of
time delivering the print medium into the conditioning chamber. The rotating
conditioning grid prepares and distributes the print medium ready for applica-
tion.
View on Left Hand Front Corner
Print Medium Demand Sensor
Print Medium Cartridge
Transfer Head Inlet
PROFLOW ATX
OVERVIEW
12.8 Technical Reference Manual Chapter Issue 6, Jan 16
Figure 12-4 Transfer Head Unit Status During Charging Action
The Archimedes screw and conditioning grid stop rotating, the system pressure
is relaxed, and print medium idle pressure is applied.
NOTE
Recharging the transfer head is an automatic process and requires no interven-
tion from the machine operator.
Rolling Conditioning During recharging, the conditioning grid rotates. This action keeps the print
medium in the optimum condition required for successful printing.
During the print process the rotation of the conditioning grid, working together
with the print medium pressure, forces print medium into the apertures of the
stencil.
Cross Section on Left Hand Side of Transfer Head
Paste Pressure
Piston
Archimedes Screw
Conditioning
Grid
Crosshead Piston
System Pressure
Print
Medium
Inlet Port
Direction of
Print Carriage
Print
Medium
Cross Section on Left Hand Side of Transfer Head
Conditioning
Grid