Chip Blaster manual - Salvex

ChipBLASTER, Inc. 23
12.0. OPERATION:
12.1. ELECTRICAL OPERATION:
12.1.1. Energizing CR1 will start the automatic operation on the coolant system and
provide coolant out of solenoid #1. At this time the filter pump and the main
drive will come on line.
12.1.2. Energizing CR3 (index#1) will stop coolant flow out of solenoid #1 and place the
unit into an idle condition. This state is primarily used for tool changes on turning
center applications.
12.1.3. De-energizing CR3 will return the unit to normal operation.
12.1.2. The coolant systems return pump will run automatically and independent of
CR1. This pump is controlled through the PLC via the tank level switch.
12.2. COOLANT FLOW (Refer to figures 6 through 6b)
12.2.1. Coolant flow is divided into two groups, High-pressure and Low-pressure.
Low- pressure is the flow of coolant from the fourth compartment of the
ChipBLASTER’s tank to the high-pressure pump. High-pressure is the flow of
coolant from the high-pressure pump to the nozzle outlet or tool, at the
machining center.
12.2.2. LOW-PRESSURE – Low-pressure leaves the fourth compartment of the
ChipBLASTER’s coolant tank and goes to the filter pump. The filter pump
pumps the coolant into a large filter where it will be filtered to 5 micron. If a
post-filter is used, it will be in series with the larger filter. If the filters gets dirty a
flashing red lamp will give an alarm. After filtration, the coolant is then sent
through a post filter which is used to protect the high pressure pump in the event
the bag filter was incorrectly changed. A steady red light will indicate a dirty post
filter. The coolant is sent to the high pressure pump.
12.2.3. HIGH-PRESSURE - High-pressure coolant leaving the pressure pump goes to the
manifold block, which consists of an unloader, 3000-psi (206 Bar) pressure
gauge, solenoids, transducer, pulsation dampener and a pressure switch
(optional). The unloader is adjustable to blow off coolant at 200 psi (13.7 Bar)
above the normal running pressure to prevent any over pressure in the
high-pressure coolant system. The blow off coolant is then returned to the first
compartment in the ChipBLASTER’s tank through a check valve. The dampener
unit is installed to dampen the fast changes in coolant pressure. A pressure gauge
is installed to read the overall pressure between the high-pressure pump and the
nozzle's outlet at the machining center. The transducer reads the overall pressure
and produces an error voltage that is fed back to control the speed of the variable
drive(1AFD). The optional pressure which is only used to produce an error signal
if there is a reduction of pressure below 300 psi (20.6 Bar). The solenoids are
used for diverting the coolant for different machine operations.
The high-pressure coolant leaves the manifold block and flows through the
machining center to the tool being used.
12.1 – 12.2