Abstract: An injection member of a molding machine is provided which can shorten the molding cycle and maintenance time, and prevent occurrence of galling between a cylinder member and an injection member. The injection member of the molding machine includes a supply section (P1) to which a molding material is supplied via a molding material supply port of the cylinder member, a compression section (P2) for melting and compressing the molding material supplied from the supply section (P1), and a metering section (P3) for metering the molding material supplied from the compression section (P2). The supply section (P1) has a pressure adjustment changeover point (q1) shifted rearward from its front end by a predetermined distance, and is divided at the pressure adjustment changeover point (q1). The pressure of the molding material is gradually reduced in a pressure gradual reduction area (AR1) from the rear end of the supply section (P1) to the pressure adjustment changeover point (q1).

Abstract: An injection nozzle for an injection molding machine having a heating device for heating its injection nozzle body (3) protruding from the front end of the heating cylinder (1) thereof. The heating device is composed of a plurality of heating members (7, 10) longitudinally arranged side by side. The temperatures of the different nozzle body sections heated by the respective heating members are individually detected (9, 11), the heating members (7, 10) being individually controlled in accordance with the temperatures thus detected. The construction enables the different nozzle body sections to be individually set to a desired, optimum temperature. The nozzle front end section 3b, for example, which is in contact with a metallic mold and whose temperature is consequently apt to be lowered can be kept high, and the nozzle middle-rear section 3a, which is near the heating cylinder and whose temperature is consequently apt to be raised, can be kept low.