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BARRIER RIB FORMING APPARATUS WITH IMPROVED UNIFORMITY OF BARRIER RIBS BY REMOVING STATIC ELECTRICITY GENERATED BY FRICTION BETWEEN SANDS AND BARRIER RIB FORMING MATERIAL, AND BARRIER RIB FORMING METHOD
BARRIER RIB FORMING APPARATUS WITH IMPROVED UNIFORMITY OF BARRIER RIBS BY REMOVING STATIC ELECTRICITY GENERATED BY FRICTION BETWEEN SANDS AND BARRIER RIB FORMING MATERIAL, AND BARRIER RIB FORMING METHOD
PURPOSE: A barrier rib forming apparatus and a barrier rib forming method are provided to achieve improved uniformity of barrier ribs by removing the static electricity generated by the friction between sands and a substrate. CONSTITUTION: A barrier rib forming apparatus comprises a plurality of sand spraying units(80,82,84) for forming barrier ribs by spraying sands(90) on a substrate(96); and static electricity removing units(86,88) arranged between the sand spraying units so as to remove the static electricity generated by the friction between sands and the substrate. Each of the sand spraying units has a plurality of nozzles(94) for spraying sands. The nozzles are arranged at intervals corresponding to widths of barrier ribs.
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