Polymer foaming and forming device

Abstract

The invention discloses a polymer foaming and forming device and belongs to the technical field of polymer foaming and forming equipment. The polymer foaming and forming device comprises a mould, wherein the mould comprises an upper mould body and a lower mould body; the upper mould body and the lower mould body can be closed to form a sealed mould cavity; a radio-frequency electrode A and a radio-frequency electrode B are respectively arranged on the outer surface of the upper mould body and the outer surface of the lower mould body. The polymer foaming and forming device further comprises aradio-frequency power supply, and the radio-frequency electrode A and the radio-frequency electrode B are respectively connected with a positive electrode and a negative electrode of the radio-frequency power supply through cables. Compared with the prior art, the polymer foaming and forming device disclosed by the invention has the advantages of evenness in heating, quick heating speed, high-efficiency foaming and ability in saving required foaming time, improving production efficiency and reducing cost.

Description

technical field [0001] The invention relates to the technical field of polymer foaming molding equipment, in particular to a device for realizing polymer foaming by means of radio frequency heating. Background technique [0002] Polymer foaming materials are widely used in heat insulation, sound insulation, shock absorption, shoemaking and other fields. At present, the commonly used foaming methods of polymer materials include physical foaming and chemical foaming. The chemical foaming method refers to that after the chemical foaming agent is blended with the polymer material, at a certain temperature, the chemical foaming agent is decomposed by heat, generates gas, expands, and makes the polymer material foam. At present, the heating method is mainly electric heating. method, because the electric heating process heats the polymer material through heat conduction, that is, the mold is first heated by the electric heating plate, and the mold then transfers the heat to the ma...

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Problems solved by technology

The chemical foaming method refers to that after the chemical foaming agent is blended with the polymer material, at a certain temperature, the chemical foaming agent is decomposed by heat, generates gas, expands, and makes the polymer material foam. At present, the heating method is mainly electric heating. method, because the electric heating process heats the polymer material through heat conduction, that is, the mold is first heated by the electric heating plate, and the mold then transfers the heat to the material in the mold cavity, which has high energy consumption, long heating time, and local heating temperature It is too high and there are still problems such as heating dead angle in some areas

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