Automatic feeding device of polyethylene film blowing machine

The utility model relates to the technical field of feeding equipment of film blowing machines, and discloses an automatic feeding device of a polyethylene film blowing machine, which comprises a stock bin, the top end of the stock bin is provided with an opening, the interior of the stock bin is provided with a fixed pipe coinciding with the axial lead of the stock bin, the outer side part of the fixed pipe is provided with threads, and the threads are sleeved with a material screening assembly for screening materials in a threaded manner; and the hot-air blower communicating with the interior is arranged on the upper portion of the side wall of the stock bin, hot air conduction is conveniently conducted to the interior, and effective drying treatment of the plastic particles is achieved. Through the arrangement of the hot-air blower, drying treatment of plastic particles is achieved, the adjustable sieve plate is matched, screening of materials is achieved, impurities are prevented from falling into the mat