Screw barrel cooling device

Abstract

The invention discloses a screw barrel cooling device and an extruder with the device, and belongs to the field. The screw barrel cooling device and the extruder with the device aim at evenly lowering the temperature in a charging barrel. According to the technical scheme, the screw barrel cooling device comprises a screw barrel and connecting flange plates at the two ends of the screw barrel. A plurality of first cooling channels and second cooling channels which penetrate the two ends of the screw barrel and are parallel to the axis of the screw barrel are arranged in the wall of the screw barrel. Water channel cover plates for preventing circulating media from being leaked are arranged on first circulating grooves and second circulating grooves. Cooling and circulating channels are formed by the first cooling channels and the second cooling channels through the first circulating grooves and the second circulating grooves, the four sets of cooling and circulating channels are arranged on the screw barrel in a circumferential array manner, and input holes and output holes communicating with the cooling and circulating channels end to end are formed in the screw barrel.

Description

technical field [0001] The invention relates to an extruder, in particular to a screw barrel cooling device. Background technique [0002] The heating system of the extruder generally uses the traditional resistance heating method to heat the raw materials in the barrel, which not only consumes a lot of power, but also produces serious heat pollution, low heat conversion efficiency, and 60% of the heat is lost Therefore, it is necessary to use a flow fan for cooling in the production workshop, which increases the cost of production and operation of the enterprise. At the same time, it is difficult for the traditional heating device to heat evenly, which greatly reduces the working reliability of the extruder. [0003] The Chinese patent with the application number 201510426197.X discloses a heating device for a medical pipe extruder, which includes a barrel, and several temperature measuring tanks are uniformly arranged on the barrel, and the temperature measuring tank is pr...

AI Technical Summary

Problems solved by technology

[0004] Although the heating device of the above-mentioned medical pipe extruder can heat the barrel evenly, when the temperature is too high, the fan will cool down the barrel, and the wind generated by the fan will reach the maximum temperature according to the distance. The heat dissipation effect is also different, which makes it impossible to ensure uniform cooling of the barrel when cooling down, which leads to the barrel near the fan position preferentially reaching the required temperature value, while the end far away from the fan cannot drop to the required temperature value. , so that the fan needs to continue to work, which will cause the temperature of the barrel close to the fan to be lower than the stated temperature value, making it difficult to quickly adjust the temperature in the barrel

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