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1. 发明公开

EP0451294A4 CRANK TYPE INJECTION DEVICE 失效
标题翻译： CRANK型注射装置
公开(公告)号：EP0451294A4
公开(公告)日：1991-12-18
申请号：EP90916055
申请日：1990-11-01
申请人： FANUC LTD.
发明人： INABA, YOSHIHARU , NISHIMURA, KOICHI
IPC分类号： B29C45/46 , B29C45/50
CPC分类号： B29C45/5008 , B29C2045/502
摘要： A low-cost crank type injection device capable of driving an injection screw by a required driving force without using a high output type electric motor. This injection device has a crank mechanism (20) for converting a forward or reverse rotary motion of a driving shaft (21) connected to the output shaft (41) of a servo-motor (40) controlled by a numerically controlled machine (60) through a speed reducer (50) into a reciprocating motion of the injection screw installed on a pusher plate (10), and forwardly drives the injection screw with a high driving force by the servo-motor through the speed reducer and the crank mechanism during the injection process. The servo-motor is driven such that the driving shaft is driven in the forward direction within a range of a given rotary angle corresponding to an operating region excluding the top and bottom dead centers of the crank mechanism, so that abrupt changes in the injection velocity and the rate of change in injection pressure in accordance with the rotary angle of the driving shaft can be prevented.

2. 发明公开

EP0439626A4 METHOD OF AND DEVICE FOR AUTOMATIC FEEDING OF LUBRICANT 失效
标题翻译：润滑剂自动送料方法及装置
公开(公告)号：EP0439626A4
公开(公告)日：1992-01-02
申请号：EP90912389
申请日：1990-08-15
申请人： FANUC LTD.
发明人： YAMAMURA, MASATO ROOM 8-107 FANUC MANSHONHARIMOMI , NISHIMURA, KOICHI , SATO, TAKASHI FANUC DAI-3 VIRA-KARAMATSU
IPC分类号： B29C45/76 , B29C45/83 , F16N29/02
CPC分类号： F16N29/02 , B29C45/83 , F16N2250/42
摘要： A method of and device for enabling automatic and timely feeding of lubricant to mechanisms of a machine driven by a motor. An amount of increase in driving electric current for the mold-clamping servomotor (12) in the course of change from an appropriate lubrication state to an inappropriate one in the mold-clamping mechanism (10) of an injection molding machine is predetermined for every combination of the kind of an injection molding machine, conditions for injection molding, and kind of grease. Then, while executing a normal injection molding cycle in an appropriate lubrication state, a standard value of current to drive the motor is determined on the basis of motor driving normal current in a specific position to which a movable platen (14) having performed current measurement for the above-said predetermination is displaced and an increase in motor driving current so that the standard value and the specific position to which the movable platen is displaced are stored in the memory of a numerical control device (50). The control device, in response to grease feeding time judging instruction, drives a grease pump (40) when a detected motor current in the specific displaced position of the movable platen exceeds the standard value. Grease from the grease pump is distributed to each of a plurality of parts of the mold clamper in quantity as required through a distributor (43).

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