INJECTION MOLDING DEVICE

• Main Authors: SUGA FUMIO, TAKAHASHI TETSUO, SHIMAZAKI HAJIME, NODA MITSUHIRO, MOGI KUNIO, YAMAYA KENJI, ITO TAKESHI, IKEDA HIROSHI
• Format: Patent
• Language: English
• Published: 23.04.1992
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To make a device compact and light in weight, reduce the cost for the device and upgrade the working speed high by driving a mold driving means of a mold clamping section, a screw driving means of an injection section and the rotating means of a meter rotating section from a motor through only mechanical structures such as a crank and a cam. CONSTITUTION:The circular motion of a crankshaft 44 of a mold clamping driving section 28 is carried out between an upper dead center 52 and a lower dead center 54 by the rotation of a geared motor 30, and a female mold 20 is moved up and down reciprocatingly through a connecting rod 58, and when a crank pin 44 reaches the upper dead center 52, strong, firm mold clamping is carried out. A cam 98 of a reciprocating deiving section 82 is rotated by the rotation of a geared motor 30 to rock a lever 84 for driving a screw 72 reciprocatingly in the axial direction. A pulley 116 for a meter rotating section 104 is rotated by the rotation of the geared motor 106 to rotate the screw 72.