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81. 发明授权

US5986845A Apparatus for positioning magnetic head and method of the same 失效
标题翻译：磁头定位装置及其方法
公开(公告)号：US5986845A
公开(公告)日：1999-11-16
申请号：US823837
申请日：1997-03-25
申请人： Takashi Yamaguchi , Katsuhiro Tsuneta , Katsumoto Onoyama , Tsuyoshi Arai , Yoshikatsu Fujii , Hidehiko Numasato , Yosuke Hamada , Masahito Kobayashi
发明人： Takashi Yamaguchi , Katsuhiro Tsuneta , Katsumoto Onoyama , Tsuyoshi Arai , Yoshikatsu Fujii , Hidehiko Numasato , Yosuke Hamada , Masahito Kobayashi
IPC分类号： G11B21/10 , G11B5/596 , G11B19/04 , G11B21/02
CPC分类号： G11B5/59605 , G11B19/04
摘要： An apparatus for positioning a magnetic head includes a servo signal detection circuit for detecting a servo signal recorded on a magnetic disk in a predetermined first period, an acceleration measuring portion which is fitted to a part of a mechanism for mounting a magnetic head, outputs an acceleration signal in a direction of positioning the magnetic head, and samples the acceleration signal in a second period shorter than the first period, a comparison processing portion for comparing a deviation value computed from at least either one of the acceleration signal and the servo signal with a predetermined value, a write inhibit signal generating portion for generating a signal inhibiting write of data on a magnetic disk in accordance with the result of comparison in the comparison processing portion, and a manipulated variable compensation portion for generating manipulated variable for adjusting the position of the magnetic head from at least either one of the servo signal and the acceleration signal and a target value of the position of the magnetic head, whereby to prevent erroneous write operation of data onto a magnetic disk due to unsteady positioning error of the magnetic head.
摘要翻译：用于定位磁头的装置包括：伺服信号检测电路，用于在预定的第一时段内检测记录在磁盘上的伺服信号;加速度测量部分，其安装在用于安装磁头的机构的一部分上，加速度信号，并且在比第一期间短的第二期间对加速度信号进行采样，比较处理部，将从加速度信号和伺服信号中的至少一个计算的偏差值与写入禁止信号产生部分，用于根据比较处理部分中的比较结果产生禁止在磁盘上写入数据的信号;以及操作变量补偿部分，用于产生用于调整位置的位置的调节变量来自伺服信号和a中的至少一个的磁头加速信号和磁头的位置的目标值，由此由于磁头的不稳定的定位误差而导致数据在磁盘上的错误写入操作。

82. 发明授权

US5814251A Molding method of injection molding machine 失效
标题翻译：注塑机成型方法
公开(公告)号：US5814251A
公开(公告)日：1998-09-29
申请号：US551268
申请日：1995-03-21
申请人： Tsuyoshi Arai , Nobuyuki Nakamura , Makoto Nakazawa , Toshiyasu Koda
发明人： Tsuyoshi Arai , Nobuyuki Nakamura , Makoto Nakazawa , Toshiyasu Koda
IPC分类号： B29C45/50 , B29C45/57 , B29C45/67 , B29C45/76
CPC分类号： B29C45/76
摘要： A method of operation for an injection molding machine is disclosed. The injection molding machine includes an injector having an advancable screw and a barrel cylinder, and a mold clamp for holding a mold with a controllable pressure and for allowing the mold to open a controllable amount. In performing the method, preset values are established for a stop position of the advancable screw, a clamping pressure of the mold clamp, and an opening amount for the mold. The screw is advanced up to the preset stop position and stopped thereat. The screw is controlled so as to ensure the location of the screw at the preset stop position for a preset time. Resin is injected from the barrel cylinder into the mold. The mold is clamped with the preset clamping pressure, during the preset time, by operating the mold clamp while maintaining the positioning of the screw at the preset stop position. Further, the mold clamp is operated to controllably allow for opening of the mold during the injecting step, so that the mold is allowed to open to the preset opening amount when the injecting step is completed.
摘要翻译：公开了一种注射成型机的操作方法。注射成型机包括具有可推荐的螺杆和桶筒的注射器，以及用于保持具有可控压力的模具并且允许模具打开可控量的模夹。在执行该方法时，为可推荐螺钉的停止位置，模具夹具的夹紧压力和模具的打开量建立预设值。螺丝前进到预设的停止位置并停在那里。控制螺钉，以便在预设的时间内确保螺钉在预设停止位置的位置。树脂从筒体注入模具。在预设的时间内，通过操作模具夹具，同时将螺钉定位在预设的停止位置，模具以预设的夹紧压力夹紧。此外，模具夹具被操作以可控制地允许在注射步骤期间打开模具，使得当注射步骤完成时允许模具打开到预设打开量。

83. 发明授权

US5688535A Drive control apparatus for an injection molding machine 失效
标题翻译：注射成型机的驱动控制装置
公开(公告)号：US5688535A
公开(公告)日：1997-11-18
申请号：US562895
申请日：1995-11-27
申请人： Toshiyasu Koda , Tsuyoshi Arai
发明人： Toshiyasu Koda , Tsuyoshi Arai
IPC分类号： B22D17/32 , B29C45/50 , B29C45/77 , B29C45/82
CPC分类号： B29C45/82 , B29C45/5008 , B29C2045/824
摘要： A drive control apparatus connects a hydraulic source 4 and an oil tank 5 to an injection cylinder 2 through a servo valve 3 and controls the injection cylinder 2 by the servo valve 3. A first change-over valve 6 which is connected between the hydraulic source 4 and the servo valve 3 and has a large capacity. A flow limiting circuit 9 connects a throttle valve 7 to a second change-over valve 8 having a small capacity in series and is connected to the first change-over valve 6 in parallel. A change-over valve control portion 10 opens both the first change-over valve 6 and the second change-over valve 8 when controlling a large rate of flow in an injection process or the like and controls to close the first change-over valve 6 when controlling a small rate of flow in a pressure maintenance process or the like. As a result, the first change-over valve 6 having a large capacity and the second change-over valve 8 (which is connected to the throttle valve 7 in series and has a small capacity) are opened so that the control suitable for the large rate of flow is performed when controlling the large rate of flow. When the first change-over valve 6 having a large capacity is closed, control of a small rate of flow is carried out.
摘要翻译：驱动控制装置通过伺服阀3将液压源4和油箱5连接到注射缸2，并通过伺服阀3控制注射缸2.第一转换阀6连接在液压源 4和伺服阀3，并具有大容量。流量限制电路9将节流阀7与串联的小容量的第二转换阀8并联连接到第一转换阀6。当在喷射过程等中控制大的流量时，转换阀控制部分10打开第一转换阀6和第二转换阀8，并且控制以关闭第一转换阀6 当在压力维持处理等中控制小的流量时。结果，打开具有大容量的第一转换阀6和第二转换阀8（其连接到节流阀7并具有小容量），使得适于大型控制流量大时执行流量。当具有大容量的第一转换阀6关闭时，执行小流量的控制。

84. 发明授权

US5641523A Protecting device of an injection molding machine 失效
标题翻译：注塑机的保护装置
公开(公告)号：US5641523A
公开(公告)日：1997-06-24
申请号：US501646
申请日：1995-07-12
申请人： Takayoshi Shioiri , Tsuyoshi Arai , Toshiyasu Koda
发明人： Takayoshi Shioiri , Tsuyoshi Arai , Toshiyasu Koda
IPC分类号： B29C45/76 , B29C45/82
CPC分类号： B29C45/76 , B29C45/82
摘要： A protecting apparatus of an injection molding machine having an injection of cylinder 2r with a built-in double rod type piston, and a servo valve for driving and controlling the injection cylinder includes a power failure detecting circuit for detecting a power failure, and a power-failure-time signal outputting circuit Ub for outputting a neutral signal, by which the servo valve is controlled at a neutral signal, by which the servo valve is controlled at a neutral position, to an instruction signal input line for the servo valve, due to the detection of the power failure by the power failure detecting circuit. A power-failure-time shutting down circuit is connection to the oil transferring line for supplying pressurized oil to the injection cylinder. The power-failure-time shutting down circuit includes a control valve for opening the oil transferring at the time of the non-power failure, and for shutting down the oil transferring line at the time of the power failure. Thereby, even if the power failure occurs in the state when the purging cover is closed at a time of positional control in the unguarded state a problem where the resin is ejected at high speed can be presented.
摘要翻译：注射成型机的保护装置具有注射具有内置双杆式活塞的气缸2r和用于驱动和控制注射缸的伺服阀，包括用于检测停电的电源故障检测电路和功率检测电路故障时间信号输出电路Ub输出中性信号，伺服阀被控制在中性信号，伺服阀通过该信号被控制在中立位置，到达伺服阀的指令信号输入线，由此用于通过电源故障检测电路检测电源故障。断电时间关闭电路连接到输油管线，用于向注射缸供应加压油。断电时关闭电路包括用于在非断电时打开油传输的控制阀，以及在断电时关闭输油管线。因此，即使在无保护状态下的位置控制时在清洗盖关闭的状态下发生电力故障，也可以呈现高速喷射树脂的问题。

85. 发明授权

US5585053A Method of controlling a movable member in a molding machine 失效
标题翻译：在成型机中控制可动部件的方法
公开(公告)号：US5585053A
公开(公告)日：1996-12-17
申请号：US393167
申请日：1995-02-21
申请人： Tsuyoshi Arai
发明人： Tsuyoshi Arai
IPC分类号： B29C45/80 , B29C45/77
CPC分类号： B29C45/80
摘要： In a method of controlling a movable member in a molding machine, a speed of movement of the movable member which is moved by driving device is detected, the speed of movement thus detected, and a deceleration time which is required for decelerating the movable member so that the movable member is stopped or nearly stopped, are utilized to obtain an over-run distance from a braking start position provided for the movable member, the braking start position is set to the over-run distance which is just short of a movement limit position provided for the movable member, and braking control is started for the driving device when the movable member reaches the braking start position, whereby the collision of the movable member against the stationary member is prevented, or, when the former collides with the latter, the impact is less.
摘要翻译：在成型机中控制可动部件的方法中，检测由驱动装置移动的可动部件的移动速度，检测出的移动速度以及使可动部件减速所需的减速时间使可动件停止或几乎停止，用于获得与为可移动部件设置的制动开始位置的超行距离，制动开始位置被设定为刚好短于移动限制的超行距离并且当可动件到达制动开始位置时开始对驱动装置进行制动控制，从而防止可动件抵抗固定件的碰撞，或者当前者与其碰撞时，影响较小。

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