Design of a variable-power heating device for injection machine material canister

In order to improve the temperature control accuracy of the material canister of the injection molding machine,a digital variable-power heating device was developed which was suitable for the injection machine material canister.Meanwhile,the circuit design of the digital variable-power heating device,the software design and the operating principle were introduced.The results indicate that this heating device enables different parts of the material canister of the machine to adjust their own heating power separately and simultaneously,thus to control the variable-power heating to the injection machine material canister automatically and digitally.