Importance

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Abstract

In a rotary compressive molding machine for powder material in which powder material filled in a die hole 41 of a die 4 mounted on a rotary table 3 is compressed and molded between a lower face 5a of an upper punch 5 and an upper face 6a of a lower punch 6, a powder lubricant supplying means LS that supplies the upper face 6a of the lower punch 6, the lower face 5a of the upper punch 5 and the die hole 41 with a predetermined quantity of powder lubricant L prior to filling the powder material comprises a powder lubricant supplying portion LS1 that sends the powder lubricant L, a flow quantity detecting portion LS2 that detects a flow quantity of the powder lubricant L, a retrieved quantity detecting portion LS3 that detects a quantity of superfluous powder lubricant L that has not been used, and a control portion LS4 that controls the powder lubricant supplying portion LS1 by computing a quantity of the powder lubricant L to send out based on a quantity detected by the flow quantity detecting portion LS2 and the retrieved quantity detecting portion LS3 respectively.

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First Claim