| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatically measuring and feeding apparatus for synthetic resin molding material wherein measuring and feeding to a molder of a molding material are simultaneously carried out, a measuring precision is high, a molded product having a stable mixing ratio and a high uniformity can be obtained by mixing a plurality of molding materials, its structure is simple, it can be directly fitted to a molder, and it is low-cost and easy in handling. SOLUTION: A raw material hopper 1A for storing a resin raw material and an additive hopper 1B for storing an additive are provided to a mixing hopper 6 fitted to a material feed opening 7 of a molder A. Small diameter charging passages 2A, 2B are provided by a specific length downward to bottom parts of the hoppers 1A, 1B, and opening and closing devices 3A, 3B having a door for opening and closing bottom end opening parts of the charging passages 2A, 2B are provided. Then, specific amounts of the resin raw material and the additive are charged by dropping into a mixing hopper 6 through charging passages 3A, 3B by controlling opening and closing times of doors of the opening and closing devices 3A, 3B by a control means 5, mixed herein, and charged by dropping into the molder A.
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