The drive technology for making the injection molding machine is evolving all the time. Servo motor energy saving injection molding machine have been used for performing a variety of roles. Here is everything that a molder will need to know about the servo drive regarding factors such as performance, cost, training, and maintenance.
- Complete Electric IMM
According to the standards set by the PIA (Plastics Industry Association), a High precision injection molding machine has to have at least its three major axes, the clamp movement, the injection, and the plasticating that is driven by the servo motors.
The mechanism used in the machines uses the servo motors in order to generate and collect total deceleration energy from all the axes and then further convert it back to electric energy.
- Hybrid IMM
A machine that has more than three major axes is usually driven by hydraulics. One of the most common examples of hydraulic machines used for High precision injection molding machine is servo-driven metering. Metering is one of the most energy-drawing barrels that is found on any IMM. Therefore it is always a smart decision to make to opt for a servo-electric drive.
A hybrid machine is not a machine that is driven by the servo-drive pump, as all the movements are run by hydraulics.
- Energy Efficiency
Servo driven pump machines present better energy efficiency than the machines with constant-speed motors and have better energy than a variable displacement pump.
The servo motor on the pump of the servo-driven usually only operates if there is a demand in the oil flow. On occasions where the axis is not operating, there is no pump movement noticed. Hence there is no energy consumed by the pump.
The amount of the energy saved is highly dependent on the process point for each particular application. The packaging application with fast cycling is estimated to have a lower percentage of energy saving than the application with too much cooling time.
Complete electric machines that have electric energy that further directly convert the electric energy into kinetic energy. They have the best energy efficiency qualities. For a servo-driven pump, there is 65% to 70% of average energy consumption.
- Noise level
A complete electric and a servo-driven pump machine generally has a noise level that is considerably lower than the average hydraulic machine. A modern complete electric servo driven machine will have a noise level of around 68dbA.
- Speed and Acceleration
A full electric servo driven motor has a great acceleration-it is usually much better than a regular ramp up hydraulic system. It suffers highly due to the compressibility of the oil and the hoses of the hydraulic motor.
- Parallel Movement
A complete IMMs is generally used to separate the servo drive for each separate axis. This makes the machine very flexible in nature. It allows all the axes to be utilized in all the parallel movements. This feature makes sense during occasions when it is required to open the mold for further ejection.
- Service Pump
In occasions where the hydraulic change Reuters to be changed or replaced, no calibration is quicker to replace or change than variable-displacement pumps. The fixed or the displacement pumps are usually less expensive than the variable displacement pump.
However, a regular servo motor is usually more expensive in nature in comparison to a constant-speed motor.
If you have a fully electric machine, it will either never or, on very rare occasions, require you to deal with pump maintenance. The modern machine tends to offer better analysis features in comparison to its predecessors.
A servo drive can mostly be inspected with ease via embedded oscilloscope functions. Several suppliers also offer a standard addition in their controls of modern machinery.
- Machine Cost
A complete electric machine is always more expensive in nature than a regular hydraulic machine. This happens due to the necessary number of electric motors and drives that are present. Although in most of the cases, it is easier to calculate the RIO with the help of energy saving and improved utilization movement.
The servo driven pump machines are usually more expensive than the regular hydraulic machines.
- Oil Quality and Maintenance
In the servo drive pumps, the oil does not get very stressed very easily; therefore, the quality of the oil gets degraded over time. However, it is still slower than the standard hydraulic machine.
This is also dependent on the process and the amount of oil that is sheared.
To Sum It Up
The Servo motor energy saving injection molding machine allows the injection molding machine to be energy efficient. This kind of motor promotes quick acceleration and brake capabilities in courtesy of the brush and the lighter body. Follow through the above article in order to know more.
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