The two-color injection molding machine is applied to multi-color and hard rubber-coated products, two-color TPU soles, two-color straps and other two-color, two-color handles. Although the two-color injection molding machine is matched with the fully active inserting and unloading system, it can realize unmanned maneuvering completely. It has the advantages of full active setting system, fully active workflow, high efficiency and low cost, but it also has its shortcomings. In the market can not hold the foot. In addition, with the continuous development of technology, the transformation of high-performance two-color injection molding machines has become a trend.
Disadvantages of traditional injection molding machines:
1. The asynchronous motor with squirrel cage induction has large migration inertia and slow system response.
2. The machine oil temperature is high, the machine is not affected by the operation, the service life of the machine is shortened, and the request for cooling equipment is high.
3. When cooling, the motor of the injection molding machine is still migrating, the reactive power is not cleared, and the energy saving result is not ambition.
4. The noise is large and the working environment of the enterprise cannot be improved.
5. Since the press is an open loop system, it is difficult to guarantee the immutability.
Two-color injection molding machine has strong performance after energy-saving transformation
High energy saving: Due to the energy-saving transformation of the injection molding machine, the system can respond quickly. The injection molding machine can quickly adjust the supply according to its own needs, and can effectively improve the application rate of the electric energy of the injection molding machine, thereby achieving high efficiency and energy saving.
Invariance is good: the system forms a closed-loop control of pressure and flow. According to the demand of the injection molding machine, the supply of the injection molding machine is determined. Under the given input or external disturbance, the system can reach a new equilibrium after a short adjustment process. Or return to the original equilibrium.
Fast responsiveness: Fast response is one of the important indicators of the dynamic character of the servo system. Due to the short process time, it is usually within 200ms or even less than tens of milliseconds. In order to achieve overshoot request, the request is excessive. The front edge of the process is steep, the rate of increase after the energy-saving transformation is large, and the time for the injection molding machine to reach 1500 rpm is less than 0.03 seconds.
High precision: The accuracy after the transformation refers to the accuracy with which the output can follow the input. The servo motor adopts permanent magnet technology, which is precise and agile. The servo motor adopts PLC technology, and the control is more precise. The allowable error is generally between 0.01 and 0.00lmm.
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