DEK 265 horizon Engineering Specification page 24

ENGINEERING SPECIFICATION
MACHINE OPTIONS
18
ProFlow operates in the horizontal and vertical planes.
The unit is raised and lowered to the stencil by means of the ProFlow printhead
mechanism stepper motor.
A downward force is applied to the ProFlow transfer head directly onto the
stencil which provides:
• A positive seal between the transfer head and stencil eliminating leakage
above the stencil.
• Improved gasketing effect to give the best possible seal between stencil and
board
The horizontal movement, driven by the machine print carriage motor, moves
the unit across the stencil in a forward and reverse direction (Y axis). A print
cycle may consist of a single movement in the Y axis, (forward or backwards).
Pneumatic pressure controlled by either an optional software or manually
controlled pressure regulator is applied to the piston crosshead exerting a force
onto the print material. This forces print material into the ProFlow conditioning
chamber and into the stencil apertures.
As the unit moves across the stencil, the trailing wiper within the transfer head,
lifts the print material from the screen surface creating a rolling movement of
material within the conditioning chamber. The volume of material, under
pressure from the cassette, is kept at a constant level within the chamber.
System Pressure
Cassette
Plunger
Cassette
Primary
Grid
Secondary Grid
Engineering Specification
ProFlow Movement (Y Axis)
Pneumatic Pressure
Print Material
Conditioning Chamber
Cover Captive
Fastener
(2 Positions)
ProFlow Pressure
Mechanism
Piston
Crosshead
Transfer
Head
Stencil
Wiper Board
Chapter Issue 1 May 00