Clean pneumatic conveying shield, mold replacement system for expanding machine and replacement method

Abstract

A clean pneumatic conveying shield includes a shield body used for picking up an expanded material from an expanded material discharge port and pneumatically conveying the expanded material to the next process and provided with a hollow closed inner cavity, an outlet pipeline positioned in the middle of the top of the shield body and communicated with the inner cavity of the shield, and at least 2 inlet pipelines positioned at the top of the shield body, arranged around the outlet pipeline and communicated with the inner cavity of the shield. The shield body is provided with a splitter plate corresponding to each inlet pipeline and capable of rotating, an upper partition plate positioned above each splitter plate and a lower partition plate positioned below each splitter plate.