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CYCLONE UNDER STENCIL CLEANER MODULE OVERVIEW Chapter Issue 11, Feb 18 Technical Reference Manual 26.3 V acuum Filtration The vacuum filtration unit extracts solvent fumes and draws excess print material onto the fabric.…
CYCLONE UNDER STENCIL CLEANER MODULE
OVERVIEW
26.2 Technical Reference Manual Chapter Issue 11, Feb 18
The cyclone under screen cleaner wipes lint free fabric, dry or wet across the
underside of the stencil to minimize paste build up. The frequency and mode
(wet/dry/vac) are programmable in the product file. The under screen cleaner is
available in four widths, 300, 400, 460 and 515mm and is supplied with an extra
fabric cassette for a quick change-over when replenishment is required. The
fabric cassette can be programmed to oscillate in the X direction creating a
scrub action as the cleaner traverses in the Y direction.
When a stencil cleaner operation is required, the camera carriage approaches
the cleaner and attaches to the two cleaner pickup magnets. The two cleaner
home magnets holding the stencil cleaner unit in the home position are de-
energized, the cleaner pickup magnets are energized securing the cleaner to
the camera beam, allowing the pickup carriage to pull the cleaner across the
stencil. The cleaner dropped sensor alerts the operator if the cleaner becomes
disengaged from the camera carriage during cleaning.
A fabric usage sensor enables the software to monitor the clean fabric roll. The
fabric feed motor supplies a clean section of fabric across the vacuum chamber.
Solvent The solvent pump supplies solvent to the fabric roll from the external solvent
tank, mounted on the rear or either side of the machine. The external solvent
tank container is capable of accommodating a 5 litre container of solvent. For
Style 1 - 4 machines a load cell in the base of the external solvent tank enables
the software to calculate the percentage level of solvent within the container.
Style 5 machines also utilize an external solvent tank container capable of
accommodating a 5 litre container of solvent. For this type of solvent tank, a
solvent low level float switch fitted to the solvent container enables the software
to calculate the solvent level.
Solvent Advice The plastic tubing that transports the solvent from the solvent tank to the
underscreen cleaner head is designed to withstand most types of solvent.
However, mixing of two different solvents can cause a chemical reaction and
seriously damage the plastic tubing. When changing to a different type of
solvent, the tubing must be replaced completely to prevent solvent leaks. To
obtain new tubing and replacement instructions, order Machine Performance
Upgrade (MPU) 601187*2.
ASM only recommend the DEK-PRO and the DEK-PRO XF (Environmentally
Friendly) USC solutions to be used with the under screen cleaner. The following
are available from ASM:
NOTE
The following solvents MUST NOT be used in the under screen cleaner unit,
however, this list is not complete and does not mean that any solvent not
mentioned is compatible, with DEK machines.
• Rosstech 106 FE
• Rosstech 162 ND
• Acetone
• Iso-Propyl Alcohol (IPA)
Description 1 Litre 5 Litre 20 Litre
DEK-PRO 173483 173485 431093
DEK-PRO XF 431513 431514 -
CYCLONE UNDER STENCIL CLEANER MODULE
OVERVIEW
Chapter Issue 11, Feb 18 Technical Reference Manual 26.3
Vacuum
Filtration
The vacuum filtration unit extracts solvent fumes and draws excess print
material onto the fabric. Vacuum filtration is optional and may be one of the
following types:
Vacuum filtration is optional and may be one of the following types:
• VF35i Vacuum Filtration Unit
• VF25 Vacuum Filtration Unit
• VF10 Venturi Vacuum Filtration Unit
NOTE
For information on the removal and replacement of the filters, refer to the
Preventive Maintenance manual.
Figure 26-1 Vacuum Option
VF35i Vacuum
Filtration Unit
The onboard VF35i vacuum filtration unit is protected by two circuit breakers on
the front panel of the base unit. A 15A (for 115V) and an 8A (for 230V) which
can be reset by pressing the circuit breaker button covered by a clear plastic
protector. For safety, the voltage selector control knob is removed from the
switch and bolted to the fan housing. The VF35i vacuum filtration unit has a
three position mechanical air flow adjuster to regulate the air flow as follows:
• Maximum (full air flow)
• Medium (half air flow approximately)
• Minimum (15% of full air flow approximately)
CYCLONE UNDER STENCIL CLEANER MODULE
OVERVIEW
26.4 Technical Reference Manual Chapter Issue 11, Feb 18
VF25 Vacuum
Filtration Unit
The onboard VF25 vacuum filtration unit is protected by either a 10A (for 115V
units) or 5A (for 230V units) circuit breaker.
VF10 Vacuum
Filtration Unit
The onboard VF10 Venturi Vacuum Filtration Unit, located in the front of the
machine frame, uses compressed air to create a vacuum.