In order to save manpower to improve quality and reduce costs, there are many manufacturers who have used the mold temperature machine, the mold temperature machine can improve the life of the mold is a necessary means to improve productivity, the mold temperature machine is also called the mold temperature control machine, which is widely used in plastic molding, light guide plate die-casting, rubber tires, chemical reactors, bonding, mixing and other industries, what is the working principle of the mold temperature machine?
The mold temperature machine, also known as temperature control equipment, includes temperature control in both heating and freezing, and the application in other industries is an inevitable condition for the composition of equipment, and the name is different. In the PVC sheet roller temperature control, it is called the oil heater, in the extruder equipment, it is called the temperature control device, and in the rubber mixer equipment, it is called the temperature control system or temperature controller.
The working principle of the mold temperature machine:
1. The equilibrium temperature of the heating equipment controlled by the mold temperature machine can be heated or cooled. The mold temperature machine uses high heat conductivity to raise the temperature required by the heating equipment to the process in a very short time, and after setting the thermal equilibrium temperature, the temperature can be automatically controlled within a very small error, and can maintain a fixed value, the mold temperature machine is composed of heating and cooling system, power transmission system, liquid level control system and temperature sensor, injection port and other devices.
2. The pump in the power transmission system makes the hot fluid be transported from the unit equipped with built-in heater and cooler to the heating equipment, and then returns to the mold temperature machine for reheating after consuming heat with the heating equipment, and the temperature sensor measures the temperature of the thermal fluid and transmits the data to the controller of the control part, and the controller adjusts the temperature of the thermal fluid, thereby indirectly adjusting the temperature of the thermal equipment.
3. If the temperature of the heating equipment exceeds the set value of the controller in the production of the mold temperature machine, the controller will open the solenoid valve to connect the water inlet pipe until the temperature of the hot flow liquid, that is, the temperature returns to the set value, if the mold temperature is lower than the set value, the controller will open the heater and continue to heat.
There is also a lot of room for the application of mold temperature machine in the die casting industry, especially in the manufacture of magnesium alloy and aluminum alloy, uneven or inappropriate mold temperature will lead to unstable casting size. The mold temperature machine also has an impact on the production cycle, such as filling time, cooling time and spraying time are unstable variables, and the life of the mold will also be subject to the impact of overcooling and overheating, which will lead to hot cracking of expensive steel and accelerate its aging, we should pay attention to these problems when using.