Screen exchanger and screen exchange method thereof

Abstract

The invention discloses a screen exchanger comprising a bracket, a screen feeding mechanism, a rotary scrapping mechanism and a screen pressing mechanism. The screen feeding mechanism comprises a screen feeding fixing frame mounted on the bracket, and further comprises a first friction wheel, a screen feeding motor and a new screen installing shaft which are installed on the screen feeding fixingframe, and the screen feeding motor drives the first friction wheel to rotate; the rotary scrapping mechanism includes a rotary scrapping motor mounted on the bracket, a rotating arm with one end fixed to the tail end of a rotary scrapping motor rotating shaft, a scraper fixing frame arranged at the free end of the rotating arm and scrapers rotationally connected to the scraper fixing frame; and the screen pressing mechanism includes a screen pressing cylinder mounted on the bracket and a screen pressing block fixed at the tail end of a push rod of the screen pressing cylinder. The rotary scraping motor drives the screen scraper and the slag scraper to conduct rotary scraping on the surface of a filter cartridge, residual glue and an old filter screen on the surface of the filter cartridgecan be automatically peeled off, a new filter screen is conveyed through the screen feeding mechanism, the slag scraper rotates along with the rotary scraping motor to further press and adhere the new screen tightly to the surface of the filter cartridge, and the automatic screen exchange function is achieved.

Description

technical field [0001] The invention relates to the field of plastic processing, in particular to a screen changer. Background technique [0002] Plastic is a material that can be seen everywhere in life. Its light weight, easy plasticity, corrosion resistance and other advantages make it widely used. Before plastic is made into products, it is usually in the state of particles, and it needs to go through a series of steps such as injection molding machines. To produce products of various shapes and colors in life, in one of the steps, the plastic particles are heated and put in a molten state, but due to the purity of raw materials, the doping of impurities and the limitation of sufficient melting, the plastic in the molten state It will contain certain impurities and needs to be filtered. However, the filter barrel needs to be replaced manually. Therefore, designing a device that can automatically replace the filter screen on the filter cartridge is something that those s...

AI Technical Summary

Problems solved by technology

[0002] Plastic is a material that can be seen everywhere in life. Its light weight, easy plasticity, corrosion resistance and other advantages make it widely used. Before the plastic is made into a product, it is usually in a granular state, and it needs to go through a series of steps such as an injection molding machine. To produce products of various shapes and colors in daily life, in one of the steps, the plastic particles are heated and put in a molten state, but due to the purity of raw materials, the doping of impurities and the limitation of sufficient degree of melting, the plastic in the molten state It will contain certain impurities and needs to be filtered. However, the filter barrel needs to be replaced manually. Therefore, designing a device that can automatically replace the filter screen on the filter cartridge is something that those skilled in the art need to consider

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