公开(公告)号：US09475224B2

公开(公告)日：2016-10-25

申请号：US13983926

申请日：2011-04-06

申请人： Masaaki Ikarashi ,  Mamoru Kawasaki

发明人： Masaaki Ikarashi ,  Mamoru Kawasaki

IPC分类号： B29C45/18 ,  B29C45/67 ,  B29C45/76 ,  B29C45/82

CPC分类号： B29C45/18 ,  B29C45/67 ,  B29C45/7653 ,  B29C45/82 ,  B29C2045/826

摘要： A hydraulic supply device of an injection molding machine is provided with: a first main hydraulic power source including a first main hydraulic pump having a variable capacity and driven by a first constant rotational speed motor, and a first main discharge pipe through which working oil flows; an auxiliary hydraulic power source including an auxiliary hydraulic pump driven by a servo motor and operated at a specific capacity, an auxiliary discharge pipe through which the working oil flows, and a check valve that regulates the inflow of working oil to the auxiliary hydraulic pump; a hydraulic control unit that controls the first main hydraulic power source and the auxiliary hydraulic power source; a junction pipe at which the first main discharge pipe and the auxiliary discharge pipe join; and a switching unit that switches the supply/non-supply of working oil for a hydraulic actuator.

摘要翻译： 一种注射成型机的液压供给装置，具备：第一主液压动力源，具备由第一恒定转速马达驱动的可变容量的第一主液压泵和工作油流过的第一主排出管 ; 辅助液压动力源，包括由伺服马达驱动并以特定容量运转的辅助液压泵，工作油流过的辅助排出管，以及调节工作油向辅助液压泵流入的止回阀; 液压控制单元，其控制第一主液压动力源和辅助液压动力源; 第一主排水管和辅助排出管接合的连接管; 以及切换单元，其切换用于液压致动器的工作油的供应/不供应。

公开(公告)号：US06280170B1

公开(公告)日：2001-08-28

申请号：US09372033

申请日：1999-08-11

申请人： Masahiko Furuya ,  Hiroki Arakawa

发明人： Masahiko Furuya ,  Hiroki Arakawa

IPC分类号： B29C4582

CPC分类号： B29C45/82 ,  B29C2045/826 ,  B29C2945/7612 ,  B29C2945/76498 ,  B29C2945/76545 ,  B29C2945/76785 ,  B29C2945/76943

摘要： A hydraulic control system for an injection molding machine is provided with a pump driving induction motor capable of operating at an operating speed corresponding to a flow rate at which a hydraulic fluid is to be supplied to a desired one of hydraulic actuators for operating the functional components of the injection molding machine to supply the hydraulic fluid efficiently at a reduced power consumption. Since the operating speed of the induction motor is controlled according to the desired flow rate of the hydraulic fluid corresponding to the operating speed of the hydraulic actuator, the hydraulic fluid can efficiently be supplied to the hydraulic actuator and the useless power consumption can be avoided.

摘要翻译： 一种用于注射成型机的液压控制系统设置有泵驱动感应电动机，其能够以对应于将液压流体供应到期望的一个液压致动器的流量的操作速度进行操作，用于操作功能部件 的注射成型机以降低的功率消耗有效地供给液压流体。 由于感应电动机的操作速度根据与液压致动器的操作速度相对应的液压流体的期望流量来控制，所以可以有效地将液压流体提供给液压致动器，并且可以避免无用的功率消耗。

公开(公告)号：US5634334A

公开(公告)日：1997-06-03

申请号：US491129

申请日：1995-06-16

申请人： Karl Hehl

发明人： Karl Hehl

IPC分类号： B29C45/82 ,  F16D31/02

CPC分类号： B29C45/82 ,  B29C2045/826 ,  F15B2211/20515 ,  F15B2211/20546 ,  F15B2211/265 ,  F15B2211/3144 ,  F15B2211/327 ,  F15B2211/634

摘要： In a hydraulic device at least one control valve with at least three control positions is connected with a variable capacity pump, whereby the controlling device of the variable capacity pump is connected with the supply line downstream the control valve via a feedback line with the purpose of adjusting the pump output so as to maintain a constant operational pressure gradient. The back flow pipe is conducted over the control valve, which is connected with the consumers by connecting valves associated to mentioned consumers, whereby a transducer is associated to the back flow pipe, which together with the transducer of the supply line constitutes a regulating variable for a control unit. This way a precise and energy saving regulation or control of the consumers in both flow directions by a control valve at a reasonable price is achieved.

摘要翻译： 在液压装置中，具有至少三个控制位置的至少一个控制阀与可变容量泵连接，由此可变容量泵的控制装置经由反馈线与控制阀下游的供应管线连接，目的在于 调节泵输出以保持恒定的操作压力梯度。 回流管在控制阀上传导，该控制阀通过与所述消耗者相关联的阀连接消费者，由此将换能器与回流管相关联，后流管与供应管的换能器一起构成调节变量， 一个控制单元。 这样就实现了以合理的价格通过控制阀在两个流动方向上对消费者的精确和节能的调节或控制。