Core cooling system of pipe extruding mould

Abstract

The invention provides a core cooling system of a pipe extruding mould. The core cooling system comprises a core mould arranged inside the extruding mould, wherein an extruding channel and a center cavity which are mutually independent are arranged on the core mould, a cold air pipe is arranged in the center cavity in a penetrating manner and comprises an inlet ventilator, a middle ventilator and an outlet ventilator, the inlet ventilator extends out of the outer part of the core mould, a heat insulation layer is arranged on the outer wall of the middle ventilator, a cooling channel is arranged at a position, close to the extruding channel, inside the core mould, one end of the cooling channel is connected with an external air inlet device, the other end of the cooling channel is connected with a hot air outlet, and the outlet ventilator is connected with the external air inlet device. By using the core cooling system of the pipe extruding mould, provided by the invention, the extruding speed and quality of a pipe are improved, the heat radiation condition of the mould is also improved, the environmental friendliness and low energy consumption are achieved, the cost is low, and the energy can be recycled.

Description

technical field [0001] The invention relates to a cooling system, in particular to a cooling system for a pipe extrusion die core. Background technique [0002] Plastic pipes are widely used in many fields such as industrial and municipal water supply and drainage systems, gas transmission, power communication, etc. due to their excellent comprehensive properties. In the processing and manufacturing process of plastic pipes, especially in the extrusion molding process of pipes, the cooling and setting device determines the length of the pipe extrusion line, and the cooling process is an important factor affecting the production efficiency and product quality of the extrusion line. Especially whether the cooling of the mold core is in place directly affects the extrusion efficiency and quality of the extruded pipe. The cooling of the mold core in the production and manufacture of pipes in the prior art adopts the method of circulating pipe sleeves, and its disadvantage is th...

AI Technical Summary

Problems solved by technology

The cooling of the mold core in the production and manufacture of pipes in the prior art adopts the method of circulating pipe sleeves, and its disadvantage is that the cooling of the mold core in the prior art only adopts the traditional oil circulation cooling method of the surface bushing structure of the mold

Oil cooling cannot effectively cool the inner wall of the extruded pipe, and only heat exchange is performed on the inner layer of the mold, which cannot effectively improve the extrusion efficiency

And there are disadvantages such as high production cost, low efficiency, high energy consumption, and rough products

Images