Constant-temperature type mold temperature controller with double-PID temperature control function

Abstract

The invention discloses a constant-temperature type mold temperature controller with a double-PID temperature control function. The mold temperature controller comprises a mold temperature box, wherein the interior of the mold temperature box is fixedly arranged to be hollow, a heat flow pump is fixedly arranged on one side of an inner bottom surface of the mold temperature box, an output end of the heat flow pump is fixedly connected with the middle of a surface of a cold-heat conversion pipe, a flow inlet pipe and a flow return pipe are correspondingly arranged at upper and lower positions of a surface of one side, deviating from a connecting input pipe, of the cold-heat conversion pipe, the flow inlet pipe and the return pipe penetrate through a side wall of the mold temperature box, temperature sensors are fixedly arranged on one side of a pipe body of the flow inlet pipe and one side of a pipe body of the return pipe correspondingly, and a cooling water inlet pipe is fixedly connected with one side of an upper surface of the cold-heat conversion pipe. The mold temperature controller is advantaged in that the temperature sensors are fixedly arranged on surfaces of the pipe bodies of the flow inlet pipe and the return pipe, so the temperature of inlet and return heat flow can be directly tested, the display of the temperature of the return heat flow is increased, and a heating value of an electric heating pipe can be conveniently and directly adjusted through connection with a PID temperature controller.

Description

technical field [0001] The invention relates to the field of mold temperature machines, in particular to a constant temperature mold temperature machine with double PID temperature control. Background technique [0002] The mold temperature machine is also called the mold temperature control machine, which was originally used in the temperature control industry of injection molds. Later, with the development of the machinery industry, the application became more and more extensive. Now the mold temperature machine is generally divided into water temperature machine and oil temperature machine, and the temperature control accuracy can reach ±0.1°C. [0003] The existing mold temperature machine structure is generally set as a water temperature machine. Because the water body is easy to heat, the temperature raising effect is good, but the cooling speed of the water body is fast, and it is impossible to maintain a certain constant temperature operation for the heating degree. ...

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Problems solved by technology

[0003] The existing mold temperature machine structure is generally set as a water temperature machine. Because the water body is easy to heat, the temperature raising effect is good, but the cooling speed of the water body is fast, and it is impossible to maintain a certain constant temperature operation for the heating degree. Generally, the internal temperature sensor of t

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