Hydraulically-driven pull-back microwave heating foam forming machine and foam forming method thereof

Abstract

The invention discloses a hydraulically-driven pull-back microwave heating foam forming machine and a foam forming method thereof. The machine comprises a rack, a foam forming mechanism, a material barrel, a vacuum cooling device, an electric cabinet, an oil cylinder and a hydraulic station, wherein the foam forming mechanism comprises a fixed mold, a movable mold, fixed mold frames, movable mold frames and foaming material injection pipes; each fixed mold frame and the corresponding movable mold frame are combined to form a complete mold cavity, each mold cavity corresponds to at least one foaming material injection pipe, at least one microwave shielding hood is arranged on the fixed mold, and at least one microwave shielding cover matched with the corresponding microwave shielding hood is arranged on the movable mold; the movable mold frames and the fixed mold frames are all made of a high-temperature-resistant insulating material; and the fixed mold is located between the movable mold and the oil cylinder, and the oil cylinder drives the movable mold to move horizontally. According to the machine, microwave heating liquid is adopted to generate steam for foaming in cooperation with foaming plastic , the structure is simple and compact, the overall size of the foam forming machine is reduced, energy consumption is low, pollution is avoided, and the manufacturing and using cost is lowered.

Description

technical field [0001] The invention belongs to the field of plastic product processing, and in particular relates to a hydraulically driven pull-back microwave heating foaming molding machine and a foaming molding method thereof. Background technique [0002] At present, the foam molding mechanism of the plastic foam molding machine usually uses the steam generated by the boiler or steam generator to send into the mold cavity to cooperate with the foamed plastic injected into the mold cavity for foaming. The boiler or steam generator generates steam on the one hand The structure is relatively complicated, which increases the overall volume of the foam molding machine; on the other hand, the boiler needs to use coal or gas, which not only consumes a lot of energy, but also may cause pollution due to emissions, which increases the cost of production and use. Contents of the invention [0003] In order to solve the defects and deficiencies in the above-mentioned prior art, t...

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Problems solved by technology

[0002] At present, the foam molding mechanism of the plastic foam molding machine usually uses steam generated by a boiler or a steam generator to send into the mold cavity to cooperate with the foamed plastic injected into the mold cavity for foaming. The boiler or steam generator generates steam on the one hand The structure is relatively complicated, which increases the overall volume of the foam molding machine; on the other hand, the boiler needs to use coal or gas, which not only consumes a lot of energy, but also may cause pollution, which increases the cost of production and use

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