A mold temperature control system and control method

Abstract

The invention provides a die temperature control system and method, belongs to the technical field of dies, and solves the problem of non-uniform temperature field of the conventional die. The die temperature control system is arranged on heating circuit of heating pipes and comprises a power supply for supplying power, a plurality of temperature detection devices for detecting the temperature, one or more than one temperature acquirer connected with the temperature detection devices, and a multi-channel temperature controller which is connected with each temperature acquirer and a plurality of heating pipes and is used for controlling the heating temperature of the heating pipes, wherein each heating pipe corresponds to at least two temperature detection devices. According to the control method, the average temperature of the heating pipes is compared with standard temperature, and then single-point temperature of a die cavity is compared with the standard temperature. By the die temperature control system and method, the die can be quickly and uniformly heated.

Description

technical field [0001] The invention belongs to the technical field of moulds, and relates to a mold temperature control system and a control method. Background technique [0002] The heat conduction plate is an essential part of the injection mold, and its function is to heat the plastic or rubber to maintain a good hot melt shape, so as to produce high-quality plastic or rubber products. [0003] At present, heating pipes are usually arranged in the heat conduction plate, and the heating pipes can be electric heating pipes, or heat medium pipes heated by water, oil, steam, etc. After heating the heating tube, the heat conduction plate is heated up, but in practice, the temperature of each position of the mold cavity is different due to the different thermal conductivity of each position of the heating plate, the position distribution of the heating tube, and the heat loss during the heating process of the heating plate to the mold. The plastic melt in the mold cavity is h...

AI Technical Summary

Problems solved by technology

After heating the heating tube, the heat conduction plate is heated up, but in practice, the temperature of each position of the mold cavity is different due to the different thermal conductivity of each position of the heating plate, the position distribution of the heating tube, and the heat loss during the heating process of the heating plate to the mold. The plastic melt in the mold cavity is heated unevenly, which leads to various defects of the product, such as local burns of the product, warping and deformation, etc.

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