As a special plastic injection molding machine, it can effectively utilize the thermoplasticity of plastic, and after heating and melting, it can quickly shape the plastic to form various plastic products. At present, injection molding machines are facing an extremely serious problem, that is, the high energy consumption of injection molding machines, servo injection molding machine becomes a better choice. Today we will discuss how to choose servo injection molding machine.
What is "servo"?
"Servo", in modern industry, is interpreted as a follow-me system, a system to achieve the command requirements. In the application of injection molding machine, the servo system receives the command signal from the computer, and changes the speed and torque of the servo motor to achieve accurate speed and pressure control, and during the execution process, the servo system corrects and compensates the feedback through the rotary variable pressure encoder and pressure sensor detection, which means the speed and pressure are closed-loop controlled, so that the injection molding machine runs stably and the products are qualified.
Advantages of servo injection molding machine
At present, injection molding machines are facing an extremely serious problem, that is, the high energy consumption of injection molding machines. How to save energy consumption and reduce costs is crucial. Servo energy-saving injection molding machine is full of many advantages compared with conventional injection molding machine after transformation.
Servo energy-saving injection molding machine can effectively reduce the energy use of the injection molding machine, in an injection molding machine, the entire motor power consumption can account for more than 80% of his entire power consumption. The waste of electricity is extremely serious, and due to the high cost of electricity, the loss of electricity is a great problem.
However, the servo energy-saving injection molding machine can effectively control the flow of electricity required at each moment according to the actual working environment of the accommodation system, thus reducing the cost of electricity for the enterprise on other lines. And when the injection molding machine is not in action, it can also completely prohibit the operation of the machine, which can also ensure the life of the machinery.
Conventional injection molding machines require long hours of uninterrupted operation during the production process to meet production requirements. However, the daily operation efficiency of injection molding machines is relatively low, which can seriously affect the production efficiency of enterprises. However, the servo energy-saving accommodator can effectively use the current and voltage control technology to make the injection molding machine run stably and at high speed, thus enhancing its productivity.
The most critical thing is that conventional injection molding machines are prone to damage during daily use due to the high energy consumption of the machine. After the damage, the whole machine must be replaced in order to be used again, but the servo energy-saving injection molding machine only needs to replace the damaged drive with a new one and it can work. It is easy to replace and highly productive. This is also the broad future prospect of servo energy-saving injection molding machine.
Why do some injection molding machines feel unsuitable?
Servo injection molding machine is currently the mainstream form of servo motor drive oil pump to achieve the corresponding mechanical action, when the injection molding machine in the drive, motor, oil pump and other major power unit match "too small", there will be pressure on the speed drop phenomenon, the situation is serious when the motor heats up sharply, motor overload protection shutdown, seriously affect the production plan. This is mainly due to the mechanical design, product positioning, cost positioning and other reasons out of the bad phenomenon.
How to choose servo injection molding machine?
-
Choose the right servo system
First of all, you should choose a higher power and torque servo system, which will directly affect the overload capacity of high pressure action, you can test the ultimate performance of the machine in kind, for example: the highest pressure for a long time load (recommended not less than 40 seconds), after several cycles to detect the state of the machine.
At present, the servo motor magnets have M, S, H, SH each grade difference, SH is the highest level, and the magnetic flux is the largest (that is, the number of magnetic lines per unit area), high torque output is more advantageous, its overload capacity is good; avoid the use of cheaper servo systems, because the servo system for a long time overload, the servo motor will be prone to demagnetization phenomenon, and thus the machine power decline.
-
Motor and oil pump
Concern about the motor and oil pump coupling, whether the use of reliable couplings and bracket structure, because the servo motor in the process of operation will be frequent acceleration, deceleration, braking, reversal, and are completed within dozens of milliseconds, which will affect the drive process of axial concentricity and buffering, from then on affect the motor bearings, oil pump life.
-
Displacement and speed
Pay attention to the oil pump displacement, speed and other data affecting the operational efficiency of the machine, the greater the displacement of the oil pump at the same speed, the higher the operational efficiency of the machine, in the oil pump displacement selection should consider the highest flow output requirements and the relationship between speed, in the premise of ensuring the highest flow output requirements, it is recommended that the speed design within a reasonable safety range to ensure the reliability and service life of the servo drive system, low speed design also brings faster response speed, but this will increase the cost of the machine, involving the price of the machine positioning issues.
Conclusion
These are the tips for choosing servo injection molding machine, if you have more questions, you can contact us and communicate with our professional team.
More reading.
Top 10 two-color injection molding machine manufacturers in China
