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资料来源:中国实用新型专利公报,公告号:CN2080877U;公告日期;1991年7月17日;申请号:90225138.4;申请日期:1990年12月24日;申请人:机电部济南铸锻机械研究所实用新型提供了一种铸造用覆膜砂的混砂装置。装置包括一个桶体5支承在支架1上,桶体下面是驱动装置,桶体内装有双向转子6,该双向转子带动内外圈刮板3、10逆向旋转,刮板臂4、9上装有错开排列的混砂棒11、12。
Source: China Utility Model Patent Gazette, Announcement No .: CN2080877U; Announcement Date; July 17, 1991; Application No .: 90225138.4; Application Date: December 24, 1990; Applicant: Electromechanical Department Jinan Casting and Forging Machinery Research Institute The utility model provides a sand mixing device for coated sand. The device comprises a barrel body 5 supported on the bracket 1, a driving device under the barrel body, a bidirectional rotor 6 arranged in the barrel body, the bidirectional rotor drives the inner and outer ring scrapers 3, 10 to rotate reversely, the blade arms 4, Sand bars 11, 12 arranged.