Heating feed cylinder

Abstract

The invention discloses an integrated heating feed cylinder and a production method thereof. The integrated heating feed cylinder comprises the feed cylinder and a heating device. The heating device is installed at the exterior of the feed cylinder, and successively comprises an insulating heat-conducting layer, an electric heating foil belt, and an insulating heat-insulating layer from inside tooutside. A cross section of the electric heating foil belt is a rectangle of which a length-width ratio is greater than ten. The outer side of the insulating heat-insulating layer is further providedwith a heat-preserving layer. The integrated heating feed cylinder further comprises a wiring block and a sheet protecting tightening layer.

Description

technical field [0001] The invention relates to a heating barrel, in particular to a heating barrel in a plastic machine. Background technique [0002] Plastic machinery, such as an injection molding machine, heats the polymer raw material through the barrel of the plastic machine to the temperature required for production and becomes a molten state, and then injects the polymer fluid heated to the molten state into the mold through a screw to cool and form it mechanical. Nowadays, plastic has become one of the most widely used and important materials for human beings. Plastic has many processing methods, among which plastic injection molding is the most advantageous and main processing method for plastic products. [0003] The quality of injection molding products is affected by four aspects: polymer materials, molds, injection molding machinery and injection molding technology. The temperature of the barrel of the injection molding machine is one of the important paramete...

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Problems solved by technology

These methods also have problems such as low heat conduction efficiency and slow thermal response speed.

[0005] In the prior art, the outer wall of the barrel of the injection molding machine is not provided with insulation measures, so that during the injection molding process, a large amount of heat from the barrel is dissipated to the environment. In order to keep the material The higher temperature inside the barrel increases the power consumption; at the same time, there is no heat insulation layer on the outer surface of the barrel, and once the worker touches the barrel during operation, it may cause scald accidents

[0006] In view of the uneven heating, low heat transfer efficiency, low life of the heating wire, and slow thermal response caused by low heat transfer efficiency in the existing heating cylinder, etc. How to design a heating barrel with high heat transfer efficiency, simple structure and low cost is an urgent problem to be solved in the industry

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