Polyurethane insulation board foaming system

Abstract

The invention belongs to the technical field of insulation board foaming, and particularly relates to a polyurethane insulation board foaming system. The polyurethane insulation board foaming system comprises a material distributing device, a metering device, a foaming device, a spraying device and a forming device; the material distributing device is used for storing different distributed materials; and the metering device is used for metering and transporting the distributed materials stored by the material distributing device to the foaming device. According to the polyurethane insulation board foaming system, through cooperation of a pressing plate and a hydraulic push rod, the pressing plate can scrape off materials adhering to the inner wall of a shell, on the one hand, the situation that the materials adhere to the inner wall of the shell is reduced, and the labor intensity of workers is relieved, on the other hand, the residual quantity of the materials is reduced, and thus the mixing quality of the distributed materials is improved; and through arrangement of the pressing plate, the sealing effect in the shell is improved, the air inlet quantity is reduced, the quantity of oxidized polyether polyol in the distributed materials is reduced, the quality of the distributed materials is improved, then the foaming effect of the mixed materials is improved, and the quality of products generated through foaming is improved.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation board foaming, and in particular relates to a polyurethane thermal insulation board foaming system. Background technique [0002] Polyurethane insulation board refers to the insulation board produced on the professional production line of the factory, with polyurethane rigid foam as the core material and covered with some non-decorative surface layer on both sides. The characteristics of long life, so it is welcomed by more consumers; Among them, the polyurethane rigid foam used in polyurethane insulation board is made of polyether polyol and polyisocyanate in the presence of various chemical additives such as foaming agent, catalyst, emulsifier, etc. Foam plastics are made by chemical reaction foaming. [0003] For example, a Chinese patent with the application number CN201820504382.5 discloses a polyurethane foaming machine; the technical solution allows the propeller blades set on t...

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Problems solved by technology

[0003] For example, a Chinese patent with the application number CN201820504382.5 discloses a polyurethane foaming machine; the technical solution allows the propeller blades set on the first stirring shaft to enter the housing through the setting of the first stirring shaft and the second stirring shaft The polyurethane raw material is cut while stirring, so that the air bubbles filled in the raw material of the polyurethane foam material can fully enter the raw material, and the stirring unit installed on the second stirring shaft can fully stir the raw material filled with air bubbles, so that The raw materials and the air bubbles are fully mixed, so that the size and distribution of the air bubbles formed in it are more uniform; but this technical solution does not completely solve the problem that the material will adhere to the inner wall of the shell during the mixing process, so on the one hand, it will make the material adhere. It is difficult to clean the inner wall of the shell, which increases the labor intensity of the staff. On the other hand, the material remaining on the inner wall of the shell for a long time will be mixed with the ingredients to be mixed, thereby reducing the mixing quality of the ingredients and making the mixed ingredients The foaming effect of the material is reduced, resulting in poor quality of the foamed product, which in turn causes the limitation of the technical solution

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