The present invention relates to a raw material feeder having a hopper for storing a raw glass material, a feed fan for feeding the raw glass material to be fed from the hopper toward the glass melting vessel, and a feed-forward mechanism for advancing and retreating the feed- A cutter movable between a cutting position on the glass raw material on the conveying fan and a standby position above the glass raw material on the conveying fan and an insertion member inserted into the glass raw material on the conveying fan, The glass frit on the conveying fan is relatively pushed by advancing the conveying fan to produce a plurality of material dummies arranged in the width direction of the conveying fan, At least a part of each of the raw material piles on the conveying fan is moved relative to the conveying fan To the glass melting tank.
展开▼
