INJECTION MOLDING MACHINE

• Main Authors: KONNO MASAAKI, AMANO MITSUAKI, HAYAKAWA MASAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 18.05.2015
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; 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

PROBLEM TO BE SOLVED: To provide an injection molding machine in which depressurization time of a hot runner pressure can be shortened.SOLUTION: The injection molding machine includes a cylinder that heats a molding material, a nozzle that is provided at a front end of the cylinder, an injection member that injects the molding material in the cylinder from the nozzle to a die device, a driving device that operates the injection member in the cylinder, a moving device that allows the nozzle to advance and retract with respect to the die device, and a controller that controls the driving device and the moving device. The controller performs: at least a part of a first depressurization step in which a hot runner is depressurized by the retraction of the nozzle with respect to the die device; and at least a part of a second depressurization step in which the hot runner is depressurized by the operation of the injection member, at the same time after gate seal of the die device. 【課題】ホットランナの除圧時間を短縮できる射出成形機の提供。【解決手段】成形材料を加熱するシリンダと、前記シリンダの前端に設けられるノズルと、前記シリンダ内の成形材料を前記ノズルから金型装置に射出する射出部材と、前記シリンダ内において前記射出部材を作動させる駆動装置と、前記金型装置に対して前記ノズルを進退させる移動装置と、前記駆動装置および前記移動装置を制御するコントローラとを有し、前記コントローラは、前記金型装置のゲートシール後、前記金型装置に対する前記ノズルの後退によってホットランナを除圧する第１除圧工程の少なくとも一部と、前記射出部材の動作によって前記ホットランナを除圧する第２除圧工程の少なくとも一部とを同時に行う、射出成形機。【選択図】図２