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TECHNIC AL RE FERENCE MECHANICAL DETAIL 1.12 ProFlow Manual Chapter Issue 8 Dec 02 The ProFlow pr essure mechanism is f itted to the pr inthead dri ve mechanis m bearing block by the two securi ng bolts , Figure - Press …
TECHNICAL REFERENCE
MECHANICAL DETAIL
Chapter Issue 8 Dec 02 ProFlow Manual 1.11
MECHANICAL DETAIL
General On GSX, Lt and Infinity machines the ProFlow unit is fitted to the rear squeegee
mounting position, the ProFlow downstop is fitted to the front squeegee mount-
ing position, when the ’I’ bars have been removed. On fixed head machines the
ProFlow unit is fitted to the printhead mechanism by means of two securing
bolts.
ProFlow Pressure
Mechanism
The primary function of the pressure mechanism is to provide an adjustable
downward force (pneumatic pressure) onto the transfer head paste system.
This pressure (paste pressure) is set by software control, (refer to Pneumatic
Supply paragraph of this section and Adjustments and Settings section of this
chapter for further information).
Details of the pressure mechanism elements are listed in the Pressure Mecha-
nism Elements figure and table below.
Figure 1-5 Pressure Mechanism Elements (cover removed)
Item Description
1 Hinge Recess (2 Positions)
2 Piston Crosshead
3 Pneumatic Actuators (2 Positions)
4 Flush Pull Latch
5 Cassette Low Sensor
6 Spring Plunger (2 Positions)
3
2
1
4
5
6
15
0
30
TECHNICAL REFERENCE
MECHANICAL DETAIL
1.12 ProFlow Manual Chapter Issue 8 Dec 02
The ProFlow pressure mechanism is fitted to the printhead drive mechanism
bearing block by the two securing bolts, Figure - Pressure Mechanism Raised
for Access below refers.
NOTE
Prior to fitting the ProFlow unit to GSX, Lt or Infinity machines, ensure that both
the front and rear squeegee supports (’I’ bars) are removed.
Prior to fitting the ProFlow unit to fixed head machines, ensure that the correct
(ProFlow) printhead mechanism is fitted to the print carriage, refer to Replace-
ment Procedures section for further details.
Access for the fitting of the ProFlow transfer head and replacement of the
optional cassette is made by pulling the flush pull latch on the pressure
mechanism. The pressure mechanism is swung on a hinge upwards and is held
in the raised position by means of spring plungers locking into the hinge pin
recesses, (Pressure Mechanism Elements figure refers).
NOTE
The figure below shows an Infinity machine, but the relevant information is valid
for GSX, Lt and fixed head machines also.
Figure 1-6 Pressure Mechanism Raised for Access
TECHNICAL REFERENCE
MECHANICAL DETAIL
Chapter Issue 8 Dec 02 ProFlow Manual 1.13
Cassette Transfer
Head
The function of the cassette transfer head option is to transfer print material from
the cassette unit and onto a board as ProFlow moves across the stencil.
The cassette type transfer head comprises the following:
• Conditioning Chamber (single or dual chamber)
• Cassette Carrier Unit
• 300mm Cassette
• Retention System (see Paste Retention System Figure for detail)
Figure 1-7 ProFlow Transfer Head
Pressure Mechanism
Locating Dowel
and Holes
Carrier Unit
Hinged
Bracket
Cassette
Conditioning
Chamber
Chassis Dowel
Carrier UnitThumbscrew (2 positions)
Clamp Bracket (2 positions)
Primary Grid
(removable)
ProFlow Transfer Head Assembly with Cover
Transfer Head Assembly Opened for Access
Cover
Cassette
Cassette Retaining Pin (2 positions)