| 摘要 |
PROBLEM TO BE SOLVED: To shorten the start-up time at the beginning of the operation and realize an automatic start-up by providing a volume-reduction molding machine with a unit for adjusting the feed rate of a molding feedstock based on values detected by a means of measuring the temperature of a die, a means of measuring the driving output, and a monitoring means for identifying the shape and quality of discharged products. SOLUTION: An adjusting unit is provided on a volume-reduction molding machine wherein a roller 4 is rolled on a die 2 having vertical through holes to grind a solid material to reduce its volume and mold it into cylindrical pellets. When the measurement by a device for measuring the temperature of the die reaches a certain temperature at the beginning of operation, the raw material is fed continuously. It is desirable to bring the machine into a stationary operation when the temperature on the surface of the die becomes 40 deg.C or higher. When the machine begins to discharge products orderly in shape, the feed rate is increased. The shape monitoring may be done with an ultrasonic detector a laser detector or an image processor judging the shape of falling objects, or by sampling. It is suitable to provide a unit for heating the die, the rolling roller, or the raw material. |
