DEVICE FOR FORMING FOAMED KNEADED MATERIAL AND METHOD FOR FORMING FOAMED KNEADED MATERIAL

摘要

Provided are a device for forming a foamed kneaded material and a method for forming a foamed kneaded material the device and method being capable of filling a mold forming space with the foamed kneaded material which has been satisfactorily foamed. First a foamed kneaded material (a) is supplied into a cylinder (20) (first step). After that a piston (26) is moved toward the foamed kneaded material (a) while an air vent hole (40A) is open the air vent hole (40A) being formed in the piston (26) so as to penetrate therethrough (second step) and if it is detected that the piston (26) has reached an assumed position (X) which is assumed to be the position at which the piston (26) is in contact with the foamed kneaded material (a) the air vent hole (40A) is closed by an opening closing plug (40B) (third step). Then the piston (26) is further moved toward the foamed kneaded material (a) pressing the foamed kneaded material (a) which is within the cylinder (20) toward a mold forming space (14) (fourth step).