Plastics injection machine, hollow forming machine, press casting
machine, hydraulic machine, squeezing machine, crushing machine,
extrusion machine, forming machine, sealing machine, film blowing
machine, bag blowing machine,
bag weaving machine, hydraulic press
machine etc.
Basic principle
The energy consumption of injection machine is divided into 4 parts：
Main power equipment
% of Power consumption
Energy-saving
by inverter
Power consumption for
oil pump of hydraulic system
75 - 80 %
Power consumption of
heating system
10 - 15 %
Power consumption of
cooling water pump
5 - 10 %
Power consumption of
other signal controller
1 - 5 %
A hydraulic pump uses over 75% of total power consumption. Although the amount
of
oil applied
by a hydraulic pump is fixed, the demand of the oil during the injection
process is varied. By stallingthe inverter technology, the power consumption can
be obviously reduced, and the production efficiency can be improved.
Inverter Advantages
1.
Save up to 25-65% of total power consumption. Improve the production efficiency. Accelerate the investment return.
2.
Reduce the starting current of a motor. Scenario can be seeing significantly when
a power generator is used.
3.
The hydraulic oil temperature obviously drops 5°C-15°C to extend the lifetime
of oil seal, and also to reduce the consumption of cooling water.
4.
Smooth start to reduce the hydraulic pressure impact. Effectively reduce noise
and equipment failure rate.
5.
Shorten the production cycle and increase the productivity under specific molding conditions.
6.
After installing the inverter, the operational process is as same as before.
Injection Procedure
Actually, the pressure, flow rate of injection
machine is varied at lock mold, injecting,
cooling, open mold, pin inject,
and clearing. During time of mold open ,
cooling and clear, inverter could lower
the RPM of oil pump, eliminate oil overflow
and the temperature of hydraulic oil
also can be reduced at the same time.
Seminar for energy-saving in rubber and
plastic
injecting machine
by inverter
Save the power output generated by one Kuguan Reservoir per year
-
There are 50000 injection machines in Taiwan. If Rhymebus＇s inverters are installed on them, the power (0.5 billion kWH/year) generated by Guguan Reservoir can be saved and 314000-ton carbon dioxide can be reduced according to 33% energy-
saving rate.
