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1. 发明专利

JP2002188601A APPARATUS AND METHOD FOR CONTROLLING HYDRAULIC DRIVING DEVICE 失效
公开(公告)号：JP2002188601A
公开(公告)日：2002-07-05
申请号：JP2000390436
申请日：2000-12-22
申请人： SANYO ELECTRIC CO , TOYODA MACHINE WORKS LTD , CNK KK , TOYOOKI KOGYO KK
发明人： ITO MASAHIKO , YOSHIKAWA HIROSHI , TANIGUCHI TAKAO , NAGAHAMA TAKAYA , NAGASAKA AKITAKE , YAMAJI KOZO , SAKAI MITSUO , OGURA NORIMASA
IPC分类号： F15B9/09 , F15B9/04
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and method accurately performing positional control of a hydraulic cylinder in a hydraulic driving device in which a leakage flow and non-linearity exist internally. SOLUTION: The hydraulic driving device 1 comprises a servo motor 11, a hydraulic pump 13 and a hydraulic cylinder 15. A motor driving device 9 drives the hydraulic cylinder 15 by means of positional command Xcmd from a positional commanding generator 5. After the hydraulic cylinder reaches the initial desired position after the positional command is output from the positional command generator 5, a positional command corrector 7 corrects the positional command Xcmd as Xcmd*=Xcmd+(Xcmd-Xp) using position Xp of the hydraulic cylinder 15 which a positional sensor 17 detects. If the corrected corresponding positional command Xcmd* is input to a summing point 41, the moving position of the hydraulic cylinder 15 becomes p*= Xcmd*-E*=(Xcmd+E)-E=Xcmd when it reaches the stopping condition and becomes the expected desired position Xcmd.

2. 发明专利

JP2001323961A HYDRAULIC DAMPER FOR VIBRATION CONTROL 失效
公开(公告)号：JP2001323961A
公开(公告)日：2001-11-22
申请号：JP2000141459
申请日：2000-05-15
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , SAKAI MITSUO , FUJISAKA MASAHIRO , KOTAKE YUJI , KURINO HARUHIKO
IPC分类号： E04H9/02 , F16F9/34 , F16F9/50 , F16F15/02 , F16F15/023
摘要： PROBLEM TO BE SOLVED: To reduce the overall size of a hydraulic damper for vibration control by controlling the flow of working fluid between a first working chamber and a second working chamber by means of a single pilot-operated stop valve. SOLUTION: A pilot-operated stop valve 21 has in a valve body 47, a small-diameter hole 77 and a large-diameter hole 79 connected via a valve seat 81. A main valve element 51 with a seat surface 83 seated on the valve seat 81 is slidably fitted in the large-diameter hole 79. The small-diameter hole 77 and the large-diameter hole 79 are connected to a first working chamber 15 and a second working chamber 17 respectively At the back of the main valve element 51, an acting chamber 85 is formed, which is connected to the low-pressure side by a pilot passage 75 in which a pilot valve 55 is interposed. The main valve element 51 has a first pressure receiving surface S1 and a second pressure receiving surface S2 for respectively receiving the pressures of working fluid in the small-diameter hole 77 and the large-diameter hole 79 in the unseated direction. A restriction 61 and a first check valve 65 are interposed in series in a first connecting passage 62 connecting the small-diameter hole 77 and the acting chamber 85. A restriction 63 and a second check valve 67 are interposed in series in a second connecting passage 64 connecting the large-diameter hole 79 and the acting chamber 85.

3. 发明专利

JPH10314999A HYDRAULIC PRESSURIZED MACHINING DEVICE 失效
公开(公告)号：JPH10314999A
公开(公告)日：1998-12-02
申请号：JP13943797
申请日：1997-05-13
申请人： TOYOOKI KOGYO KK
发明人： SAKAI MITSUO , OOBA TAKATSUNA
IPC分类号： B30B15/00 , B30B1/32 , B30B15/20 , B30B15/22
摘要： PROBLEM TO BE SOLVED: To suppress useless delivery from a hydraulic pump and to obtain the machining device with a small power loss by controlling, through an inverter, a motor for driving a hydraulic pump in such a manner that, after the pressure of a hydraulic cylinder reaches a target value, if it exceeds the target value, a signal for setting the speed of the hydraulic cylinder in the counter pressurizing direction is made smaller than in other cases. SOLUTION: With a hydraulic cylinder 5 actuated, a machining tool 7 is made closer to a work 6 at high speed. With the position of the hydraulic cylinder 5 measured by a linear scale 9, if the machining tool 7 approaches the work 6, the number of revolution of a motor 2 is reduced, decelerating the speed of the hydraulic cylinder 5. The machining tool 7 comes into contact with the work 6, increasing the pressurizing force. When the pressurizing force measured by a load cell 8 reaches the 60% of a target pressure, the speed of the hydraulic cylinder 5 is further reduced. With the pressurizing force reaching the target pressure, the motor 2 is minutely advanced or retreated thereafter within the time set by a timer, thereby maintaining the pressurizing force at the target value.

4. 发明专利

JPH10110855A SOLENOID PROPORTIONAL VALVE DRIVING DEVICE 失效
公开(公告)号：JPH10110855A
公开(公告)日：1998-04-28
申请号：JP28597496
申请日：1996-10-07
申请人： TOYOOKI KOGYO KK
发明人： SAKAI MITSUO , HARADA KAZUYUKI
IPC分类号： F16K31/06
摘要： PROBLEM TO BE SOLVED: To dispense with cable connection between electric equipment boxes for input by key operation by arranging a signal wire for transmitting a control signal from a control device to an amplifier and a current carrying wire for supplying electric current from a power source circuit to the control device over first and second electric equipment boxes. SOLUTION: An amplifier 7 is arranged on a first electric equipment box 6 arranged on a solenoid proportional valve together with a power source circuit 8. A control device is detachably attached to the electric equipment box independently thereon, and arranged on a second electric euipment box 11 which can be manually held. A signal wire 16 for transmitting control signal from the control device to the amplifier 7 and a current supply wire 15 for supplying electric current from the power source circuit 8 to the control device are arranged over the first and second electric equipment boxes 6 and 11. It is unnecessary to connect a cable additionally for input by key operation, and to disconnect it after compliting input, so that handling is facilitated.

5. 发明专利

JPH10110854A SOLENOID PROPORTIONAL VALVE DRIVING DEVICE 失效
公开(公告)号：JPH10110854A
公开(公告)日：1998-04-28
申请号：JP28597596
申请日：1996-10-07
申请人： TOYOOKI KOGYO KK
发明人： SAKAI MITSUO , HARADA KAZUYUKI
IPC分类号： F16K31/06
摘要： PROBLEM TO BE SOLVED: To properly select a parameter by adopting a time element parameter selectively to a time utilizing mechanism and a gradient utilizing mechanism based on a selection signal. SOLUTION: Parameters are previously written in an EEPROM 20 of a control device 10 so as to obtain a command signal to an amplitude 7, that is, to obtain electric current to solenoids A, B. The paramiters include a time element parameter which is selectively used by a time utilizing mechanism as a value equivalent to succession period of operation for varying current carrying time as passage of time or by a gradient utilizing mechanism as a value equivalent to a current variation in respect to temporal fluctuation based on a selection signal of a selection switch 23. It is thus possible to select a proper parameter quickly.

6. 发明专利

JPH0566846A ELECTROMAGNETIC PROPORTIONAL VALVE 失效
公开(公告)号：JPH0566846A
公开(公告)日：1993-03-19
申请号：JP25573491
申请日：1991-09-06
申请人： TOYOOKI KOGYO KK
发明人： SUGIYAMA MASARU , SAKAI MITSUO , OOBA TAKATSUNA , INAISHI FUMINORI
IPC分类号： F16K31/06 , G05D7/06
摘要： PURPOSE:To easily obtain an adjustment operation of a setting signal for setting an adjustment flow rate or adjustment pressure of a valve, in a position separated from an installation place of the valve. CONSTITUTION:A setting unit 4 which has plural setting devices and rise/fall regulators in the inside and outputs a setting signal is loaded on a valve main body 1 provided with electromagnets 2A, 2B and connected electrically through a wiring 5 to an amplifying unit 3 so that remote control can be executed from the amplifying unit 3 for supplying a driving current corresponding to the setting signal to the electromagnets 2A, 2B. In such a way, after the valve is installed, when plural setting devices and rise regulators are subjected to adjustment operation in order to adjust the setting signal, a worker can execute a work by positioning the setting unit 4 at hand without going into a narrow and small place in which the valve is installed.

7. 发明专利

JPH04302787A CONTROL APPARATUS FOR ELECTROMAGNETIC CONTROL VALVE 失效
公开(公告)号：JPH04302787A
公开(公告)日：1992-10-26
申请号：JP14231791
申请日：1991-03-29
申请人： TOYOOKI KOGYO KK
发明人： SAKAI MITSUO
IPC分类号： F16K31/06 , H01F7/18
摘要： PURPOSE:To provide an electromagnetic control valve controlling apparatus enabling imparting a dither signal to an exciting current flowing in a solenoid, by using a small dumber of constituent elements. CONSTITUTION:A power switching element 12 is turned on/off by a pulse signal outputted from a comparator 6, which pulse signal is inverted in accordance with the largeness of an output signal from a current detector 14 constituting one and the other input signal of the comparator 6. As this one input signal of the comparator 6, a difference output between a set signal of a calculator 2 and a smoothed current-detector 14 output signal is used and simultaneously an oscillation signal from an oscillator 11 is applied to that one input signal.

8. 发明专利

JP2986577B2 失效
公开(公告)号：JP2986577B2
公开(公告)日：1999-12-06
申请号：JP14231791
申请日：1991-03-29
申请人： TOYOOKI KOGYO KK
发明人： SAKAI MITSUO
IPC分类号： F16K31/06 , H01F7/18

9. 发明专利

JPH11248027A ELECTROMAGNETIC PROPORTIONAL VALVE 失效
公开(公告)号：JPH11248027A
公开(公告)日：1999-09-14
申请号：JP33182598
申请日：1998-11-24
申请人： TOYOOKI KOGYO KK
发明人： SAKAI MITSUO , HARADA KAZUYUKI
IPC分类号： F16K31/06
摘要： PROBLEM TO BE SOLVED: To simplify variation work of setting of regulated flow, regulated pressure or its rising lowering delay time by connecting an amplifier unit and a writing unit to each other free to connect and disconnect through a signal conductor to transmit a writing data. SOLUTION: An amplifier unit 3 is mounted on a valve main body 1 to supply a driving electric current in accordance with a plural number of regulated flow rates and their rising lowering delay time to electromagnets 2A, 2B. An operation indicator 4 is provided on the amplifier unit 3 so as to indicate the regulated flow rate at the time of actuating a valve element to electrify the driving electric current to the electromagnets 2A, 2B and its rising lowering delay time. A writing unit 5 has an operating apparatus 7 having a plural number of keys to operate to write a data to set a plural number of the regulated flow rates and their rising lowering delay time and a data indicator 6 to indicate the regulated flow rates and their rising lowering delay time at the time of writing operation by this operating apparatus, and it is provided on the amplifier unit 3 by a connector 9 through a signal conductor 8 free to connect and disconnect.

10. 发明专利

JPH1073176A SOLENOID PROPORTIONAL VALVE DRIVING DEVICE 失效
公开(公告)号：JPH1073176A
公开(公告)日：1998-03-17
申请号：JP24726296
申请日：1996-08-28
申请人： TOYOOKI KOGYO KK
发明人： SAKAI MITSUO , HARADA KAZUYUKI
IPC分类号： F16K31/06
摘要： PROBLEM TO BE SOLVED: To facilitate change operation of parameters by providing a first mode for preparing control signals, a second mode capable of setting parameters with key operation, and wiring the parameters in the first mode after completing the second mode. SOLUTION: A controller 9 starts operation with a first mode upon current carrying. A valve 1 is operated. A portion between a supply port 2 and an output port 3 is opened according to current supplied to a solenoid A. A flow rate according to the current can be obtained in a fluid actuator connected to the output ports 3, 4. It is shifted from a stopped state to a constant-speed state, a low speed constant-speed state, and again to the stopped state. After stopping, the actuator is operated in the opposite direction, and repeats its operation. When a parameter key 36 is set ON for a specified time or more during this operation, the device 9 is shifted in a second mode. The controller 9 is reset to the first mode by selecting a plurality of parameter keys, and stopping setting-On of the keys 36 to 38 for a specified time or more. The set values are written in an EEPROM 23. Parameter setting operation is easily performed.

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