Why Servo Voltage Stabilizer are essential for Injection Moulding Machine ?

Life has changed to a great extent with the advancement of science and technology. There has been a remarkable change in the material used to make different products. Earlier various types of metals were widely used but today there is a vast usage of plastic material in various forms. Ever wondered how plastic sheets or plastic in general is moulded into the shape of these products ? what is the process involved in the moulding of plastic and making plastic products ?. The answer is technologically advanced injection moulding machine. This is an injection press machine that moulds with the help of injection and a clamping unit in the machine.

How Servo Stabilizer improves productivity in these injection moulding machines ?

In the injection moulding machine molten plastic is placed in a mould cavity and this is done before the plastic dries and hardens. This is a very delicate process that needs to be done quickly. Therefore these machines needs constant supervision and attention. But turning this raw material into liquid form is a controlled process and is done under desired heating mechanism and temperature management and in such a condition if voltage fluctuation occurs then there will be variations in the moulding process. With fluctuating load such critical procedure cannot be operated. To deal with forms of electrical disturbances Purevolt has introduced the best equipment - servo voltage stabilizer which can stabilize the input voltage and make sure the whole procedure is not hampered.

A control unit in the Servo stabilizer incorporates rapid current / voltage adjustment. This triggers the buck boost feature of these voltage stabilizers by rotating the servo motor in the desired direction and a carbon brush leads the rotation on variable transformer. Where traditional voltage stabilizers provide a voltage variation of +/- 10 %, Servo has far the least with just +/- 1% and thus is more preferred for injection moulding machines.

The old voltage stabilizer technology uses relay mechanism where a relay changes the output value of voltage to the desired level. This is done when the electronic circuit compares the output value with a reference value through a reference voltage source. The control unit corrects any variation in voltage from reference value which switches the relay to connect a desired taping of the transformer to the output. But today this technique is not preferred because it is slower, huge variation in output from 195 to 245 V and less reliable on continuous motor or machine load.

Injection moulding is the recommended process for manufacturing of plastic parts or products. These plastic products can be industrial type such as electrical housing , containers or for other items such as bottle caps, pocket combs, toys etc. These items require accurate precision engineering and therefore they require servo voltage stabilizer to perform efficiently.

Some of the process involved with Injection moulding are described as under:

• Die casting moulding.
• injection moulding for metal components
• Thin-wall moulding.
• Reaction injection moulding.
• Injection moulding for liquid rubber

Servo voltage stabilizers are primarily used for injection moulding machines and high output voltage accuracy will ensure better performance. Here as servo motor is used to enable the voltage correction and the output is quite impressive. Generally for every ±1 percent input voltage it changes up to ± 50 percent. An old transformer system fails to give such output. Automatic buck boost function backs the Servo technology.

The various categories under which we can find these injection moulding machine are as follows:-

● Hydraulic - first one to perform injection process, but are not very accurate.
● Mechanical – quote accurate but to restrain the movement of the clamp tonnage buildup is necessary in these machines.
● Electrical - it is energy saving, accurate and does not make much noise.
● Hybrid - this is also called “Servo hydraulic” moulding machine. It uses the best features of both electric and hydraulic system.
● Pneumatic - this type uses the air pressure for building up the tonnage on the clamp side of the machine.

The rotating arm resting on a Servo motor quickly manages the voltage fluctuation. The arm which is made up of carbon brush circulates over the copper winding when triggered by automatic IC based control circuit, thus giving accurate voltage promptly under the buck or boost method. For the best performance of an injection moulding machine Servo voltage stabilizer is the best option because it gives best output for both over load protection or under load boosting.