| AIDA ENGINEERING, LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120111207 | CONTROL DEVICE OF SERVO PRESS AND METHOD FOR CONTROLLING SERVO PRESS - A control system of a servo press and a control method are provided for preventing an overload on a pressure capability of a press and a torque capability of a drive system. A control device of a servo press for pressing by transferring a drive force of a servomotor to a slide via a drive mechanism includes: a motion calculation unit for calculating slide target position data; a torque calculation unit for calculating process torque for pressing and control torque for speed change of the servo motor on the basis of slide target position data; a process system limit unit for limiting the calculated process torque to predetermined process limitation torque; and a drive system limit unit for limiting combined torque of the limited process torque and the control torque to predetermined drive limitation torque. The servo motor is driven on the basis of a command of drive limitation torque. | 05-10-2012 |
| 20120090482 | PRESS LOAD CONTROLLING APPARATUS FOR MECHANICAL PRESS - In a mechanical press, the pressure (cylinder force) of a hydraulic pressure chamber of a cylinder-piston mechanism provided in a slide of the mechanical press can be variably controlled with a high responsiveness by a hydraulic pump/motor driven by an electric servomotor, in response to a cylinder force command corresponding to the press load command. Accordingly, even if a die height value is set to a value small enough to cause an overload, the press load can be restricted before the occurrence of the overload, and this can save the trouble of strictly adjusting the die height value. Further, pressure-application time in the vicinity of a bottom dead center can be lengthened, and a breakthrough phenomenon can be suppressed from occurring at the end of pressure application. Still further, because the overload does not occur, pressure oil is not relieved, so that the interruption of a press operation is avoided. | 04-19-2012 |
| 20110290126 | MULTIPOINT SERVO PRESS MACHINE - The invention provides a servo press machine including a slide moved up and down by multiple crank structures, the machine which provides perfect synchronism between main gears driving the respective crank structures and in which a compact, efficient power transmission structure can be implemented in a simple construction. In the servo press machine including the slide moved up and down by the multiple crank structures, synchronous distribution gears are driven by servo motors; the multiple main gears are driven in synchronism by the synchronous distribution gears; and each of the crank structures is driven by each of the main gears. | 12-01-2011 |
| 20110290125 | SERVO PRESS APPARATUS DRIVEN BY MULTIPLE MOTORS - This invention is intended to provide a large-capacity servo press apparatus driven by multiple motors, the servo press apparatus enabling a drive at a high efficiency and with reduced torque pulsations in a simple structure. The disclosed servo press comprises a slide that is moved up and down by a plurality of crank structures (including eccentric rings and connecting rods), main gears that drive the crank structures, a plurality of drive gears interlinked with the main gears directly or indirectly, intermediate gears interlinked with the main gears directly or indirectly, and servo motor sets connected to drive shafts to drive the drive gears. In each of the servo motor sets, a plurality of servo motors are directly connected to each servo motor shaft. | 12-01-2011 |
| 20110254299 | WORKPIECE TRANSFER APPARATUS FOR PRESS MACHINE AND CROSSBAR UNIT - Provided is a workpiece transfer apparatus for a press machine including: a workpiece retaining device which is supported by a crossbar extending to be approximately orthogonal to a workpiece transfer direction, and is capable of retaining and releasing a workpiece; a guiding device which supports and guides the workpiece retaining device so that the workpiece retaining device is slidable along a longitudinal direction of the crossbar; a driving device which drives the workpiece retaining device supported and guided by the guiding device so that the workpiece retaining device is moved along the longitudinal direction of the crossbar; and a brake device which acts in a path different from a path of the driving device, the brake device being capable of fixing and releasing a position of the workpiece retaining device with respect to the longitudinal direction of the crossbar. | 10-20-2011 |
| 20110226141 | DIE CUSHION DEVICE FOR PRESS MACHINE - A die cushion device for a press machine includes: a hydraulic cylinder for supporting a cushion pad and generating a die cushion pressure when a slide of the press machine moves downward; a proportional valve and a hydraulic pump/motor connected in parallel between a lower chamber of the hydraulic cylinder and a low-pressure source; an electric motor connected to a rotating shaft of the hydraulic pump/motor; a die cushion pressure command issuer for outputting a predetermined die cushion pressure command; a pressure detector for detecting a pressure in the lower chamber of the hydraulic cylinder; and a controller for controlling an aperture of the proportional valve and a torque of the electric motor in a manner that the die cushion pressure becomes equal to a pressure corresponding to the die cushion pressure command, based on the die cushion pressure command and the pressure detected by the pressure detector. | 09-22-2011 |
| 20110181222 | MOTOR CONTROL SYSTEM AND METHOD - A highly efficient and reliable motor control system and motor control method are provided. The motor control system includes a motor having a plurality of sets of armature windings, a plurality of inverters which drive the plurality of sets of armature windings, and a plurality of control devices which control the inverters individually. In the motor control system: while a motor torque command is in a smallest-magnitude range, a first inverter is operated to energize a first set of armature windings; when the motor torque command increases into a next larger-magnitude range, the first and a second inverter are operated to energize the first and a second set of armature windings; when the motor torque command increases into a still next larger-magnitude range, the first, the second, and a third inverter are operated to energize the first, the second, and a third set of armature windings; and when the motor torque command increases into a largest-magnitude range, all inverters are operated to energize all sets of armature windings. Thus, the number of inverters driven and/or the number of sets of armature windings energized are sequentially changed according to the torque command. | 07-28-2011 |
| 20110132209 | METHOD AND APPARATUS FOR CONTROLLING ELECTRIC SERVO PRESS - Provided is a controller for an electric servo press for linearly driving a slide through an intermediation of a rotary-to-linear motion converting mechanism for rotating a decentering shaft by a rotational output of a servo motor to convert rotation of the decentering shaft into linear motion, to perform press working, including : a press load sensor for detecting a pressure force of the slide; a pressure-force determination device for determining whether the pressure force of the slide reaches one or a plurality of different pressure-force setting values based on the one or the plurality of different pressure-force setting values and an output signal of the press load sensor, and for generating a pressure-force achievement signal each time the pressure force of the slide reaches each of the one or the plurality of different pressure-force setting values; a servo motor drive controller for controlling driving of the servo motor; and a motion command device, in which: in respond to generation of the pressure-force achievement signal, at least one of switching of a drive control mode by the servo motor drive controller and switching of a motion to be commanded by the motion command device is performed. | 06-09-2011 |
| 20110120867 | MICRO-CHANNEL CHIP FOR ELECTROPHORESIS AND METHOD FOR ELECTROPHORESIS - The micro-channel chip for electrophoresis of the present invention comprises a first substrate formed of a gas-permeable material and a second substrate formed of a gas-permeable or a gas-impermeable material, the first and the second substrate being glued together, the mating surface of either one of the first and second substrates having a sample-feeding channel having a port at both ends and an electrophoretic channel also having a port at both ends, the sample-feeding channel and the electrophoretic channel being allowed to communicate with each other via a narrower channel having a smaller cross-sectional area than those two channels. The micro-channel chip for electrophoresis of the present invention requires only one power source to perform electrophoresis and can use samples with minimum waste of their quantity. | 05-26-2011 |
| 20110109257 | ELECTRIC SERVO-PRESS, AND CONTROL DEVICE AND CONTROL METHOD FOR ELECTRIC SERVO PRESS - Provided is a low-cost control device for an electric servo press, which is excellent in operability and operation efficiency, capable of abruptly stopping a servomotor in a safe and reliable manner within a short time period in response to an abrupt stop command while avoiding hard actuation of a mechanical brake, reliably and quickly stopping the servomotor even in the case where runaway of the servomotor or the like occurs. An electric servo press performs switching to rotation stop control for a servomotor according to an abrupt stop motion based on an abrupt stop command signal to perform brake actuation so as to cause a mechanical brake to actually start braking and to forcibly interrupt rotational drive power to the servomotor at a scheduled stop time at which the servomotor is stopped according to the abrupt stop motion. As a result, even if an abrupt stop request is issued in the case where runaway or the like occurs due to abnormality of the servomotor, a control system therefor, or the like, the rotation of the servomotor may be reliably and quickly stopped. | 05-12-2011 |
| 20110061547 | PRESS MACHINE AND METHOD OF CONTROLLING THE SAME - Provided is a press machine for driving a slide by a motor, including a control device for controlling driving of the motor, in which the press machine has a press capacity which can be variably controlled by using field control for the motor. | 03-17-2011 |
| 20110002812 | SAMPLE PACKING DEVICE - Provided is a sample packing device for packing a sample with respect to a microchip for performing reaction of a micro component contained in the sample, the microchip at least including: a sample reservoir; a reaction reservoir; and a channel connected between the sample reservoir and the reaction reservoir, in which a package including a sample chamber packed in advance with the sample is mounted on the microchip so as to pack the sample in the sample chamber into the sample reservoir. | 01-06-2011 |
| 20100323432 | SAMPLE PROCESSING DEVICE FOR MICROCHIP - A sample processing device for a microchip, including: a sample vessel for packing a sample therein; and a reaction vessel which is continuous with the sample vessel through a channel, and to which the sample is sequentially delivered to be packed and mixed therein, in which the sample is repeatedly delivered between the sample vessel and the reaction vessel through the channel so that the sample is stirred and mixed. | 12-23-2010 |
| 20100221814 | TEMPERATURE CONTROL METHOD AND SYSTEM - For heating or cooling a sample contained in a vessel portion through a heat transfer member held in contact with the vessel portion, there is used the vessel portion, which has a part formed of an elastic member, expands and contracts for injection and discharge of the sample, is closed other than a connecting port with a channel connected to the vessel, and expands and contracts for injection and discharge of the sample. The vessel portion expands correspondingly to the injection when the sample is injected through an inflow path serving as the channel into the vessel portion contracting in a non-contacting state with the heat transfer member. A predetermined amount of sample is injected into the vessel portion so as to expand the vessel portion, and the vessel portion comes into contact with the heat transfer member. The vessel portion is heated or cooled through the heat transfer member. | 09-02-2010 |
| 20100192788 | MOTOR DRIVE CONTROL DEVICE - A motor drive control device including a power supply converter that is connected to an alternating-current power supply, a voltage detector that detects a direct-current voltage of the power supply converter, an inverter that is connected to a motor, and an energy storage device that is connected to a direct-current bus that connects the power supply converter and the inverter. The motor drive control device includes: a power-running operation start voltage setting section that sets a power-running operation start voltage of the power supply converter; a power-running operation start control section that causes the power supply converter to start a power-running operation when the direct-current voltage of the power supply converter has reached the power-running operation start voltage set by the power-running operation start voltage setting section; a power-running operation stop voltage setting section that sets a power-running operation stop voltage of the power supply converter; and a power-running operation stop control section that causes the power supply converter to stop the power-running operation when the direct-current voltage of the power supply converter has reached the power-running operation stop voltage set by the power-running operation stop voltage setting section. | 08-05-2010 |
| 20100147165 | PRESS MACHINE, METHOD OF DRIVING PRESS MACHINE, AND INDUSTRIAL MACHINE - In an industrial machine using a flywheel, in order to prevent increase in size of a driving motor, etc. and very freely control velocity of a load, an output shaft of a reduction gear set is connected to a load driving shaft, an input-shaft-sided gear of the reduction gear set is driven by a first motor, a differential mechanism is connected to the flywheel, the differential mechanism is configured such that the output shaft of the reduction gear set is connected to a carrier, rotational force inputted from the sun gear is transmitted to the flywheel and stored as energy while the stored energy is discharged to the sun gear and the carrier. Further, the sun gear of the differential mechanism is driven by a second motor, energy is stored by accelerating the flywheel using the second motor according to the rotational angle position of the load driving shaft, and then the load driving shaft is driven while compensating insufficient torque of the first motor by discharging the stored energy. | 06-17-2010 |
| 20100112681 | MICROCHIP FLUID CONTROL MECHANISM - Compressed gas is supplied from above to a specimen vessel having an open top. Transfer channels to reaction vessels are provided under a microchip and transfer channels extending from the reaction vessels are provided on the microchip. Transfer element is provided outside the microchip so as to supply the compressed gas from a member (cover) holding the microchip. | 05-06-2010 |
| 20100000424 | SERVO PRESS LINE OPERATION METHOD AND SERVO PRESS LINE OPERATION CONTROL DEVICE - A servo press line operation control device includes a normal press operation control section, a normal transfer operation control section, an upward movement step delay determination section, a downstream-side transfer step delay correction control section, an upstream-side transfer step delay determination section, a slide downward movement step delay correction control section, and the like. The servo press line operation control device performs a normal press operation that adjusts a slide position to a target slide position based on slide motion information, performs a normal transfer operation that adjusts a transfer position to a target transfer position based on transfer motion information, performs a correction that delays a transfer step of a downstream-side servo transfer device as compared with the normal transfer operation when a slide upward movement step is in a delayed state, and performs a correction that delays a slide downward movement step of a servo press as compared with the normal press operation when an upstream-side transfer step is in the delayed state. | 01-07-2010 |
| 20090308190 | POWER TRANSMISSION APPARATUS FOR PRESS MACHINE - A power transmission apparatus for press machine according to the invention transmits rotational power from a drive shaft to a driven shaft. The apparatus has at least two drive gears arranged along an axial direction and substantially integrally attached to the drive shaft, a driven gear substantially integrally attached to the driven shaft, and an idle gear rotatably supported on an idle shaft and having a gear meshing with the driven gear and a plurality of gears corresponding respectively to the at least two drive gears. The idle gear can be displaced relative to the drive gear along the axial direction of the idle shaft to cause one of the at least two drive gears and corresponding one of the plurality of gears of the idle gear to mesh with each other selectively. | 12-17-2009 |
| 20090277345 | PRESS MACHINE INCLUDING BOTTOM DEAD CENTER POSITION CORRECTION CONTROL SECTION - A press machine includes a bottom dead center position correction control section, a speed state determination section that determines the actual press speed, a control cycle count setting section, and a mode selection control section that selects a single-cycle control mode when the actual press speed is in a changing state, and selects a set multi-cycle control mode when the actual press speed is in a stable state. The bottom dead center position correction control section performs position correction control corresponding to each press cycle in the single-cycle control mode, and performs position correction control corresponding to each control multi-cycle count set by the control cycle count setting section in the set multi-cycle control mode. | 11-12-2009 |
| 20090208150 | SLIDE GUIDE APPARATUS OF PRESS MACHINE - A slide guide apparatus of a press machine, which guides reciprocating motion of a slide of the press machine by a sliding surface provided between a guide member and the slide, wherein a slide member that is rotatable about a predetermined rotation center axis and a slide member holder that rotatably holds the slide member and is rotatable about a rotation center axis transverse to the predetermined rotation center axis are provided between the guide member and the slide, and a flat portion of the slide member is adapted to function as the sliding surface. | 08-20-2009 |
| 20090202391 | MICRO PASSAGE CHIP AND FLUID TRANSFERRING METHOD - There is provided by the present invention a novel micro passage chip having such a structure that a fluid can be transferred without using a physical or mechanical squeezing means that is applied from above the substrate of the micro passage chip. The micro passage chip of the present invention comprises at least a first substrate, a second substrate, and an intermediate substrate interposed between the first substrate and the second substrate and is characterized in that a first non-adhesive thin-film layer is formed on at least one of the mating sides of the first substrate and the intermediate substrate and at least one port for fluids that is in contact with the first non-adhesive thin-film layer and which is open to the outer surface of the first substrate is provided in any position on the first non-adhesive thin-film layer, and that at least a portion of a second non-adhesive thin-film layer whose length is either the same as or different from that of the first non-adhesive thin-film layer is formed on at least one of the mating sides of the second substrate and the intermediate substrate such that it lies either above or under the first non-adhesive thin-film layer, with the intermediate substrate lying in between, and a pressurizing port that is in contact with the second non-adhesive thin-film layer and which is open to the outer surface of the first or the second substrate is provided in at least one area on the second non-adhesive thin-film layer. | 08-13-2009 |
| 20090188295 | SERVO-PRESS MACHINE - A servo-press machine determining whether or not a drive power supply voltage between a positive power supply path and a negative power supply path that connect a power supply device and a motor rotation control section is lower than an induced voltage of a servomotor, and correcting speed-related data based on slide motion information when the servo-press machine has determined that the drive power supply voltage is lower than the induced voltage. | 07-30-2009 |
| 20090158810 | DIE CUSHION DEVICE OF PRESSING MACHINE - In a die-cushion device of a press machine a controller controls an opening degree of a proportional flow-rate control valve to an appropriate opening degree in order to control the flow rate flowing out of a lower chamber of a hydraulic cylinder supporting a cushion pad before a slide collides against the cushion pad using a die-cushion pressure command commanded from a commander in advance and a slide speed signal inputted from a slide speed detector. By this, generation of a surge pressure when a slide collides against the cushion pad at a high speed is restricted. | 06-25-2009 |
| 20090129900 | TRANSFERRING APPARATUS AND LARGE TRANSFERRING APPARATUS - A transferring apparatus is composed of a first arm swingably provided around a first axis of a pedestal, a second arm whose length is different to the first arm is swingably provided around a second axis, a hand attached to the front end of the second arm, and a first motor to reciprocatingly swings the first arm provided in the pedestal. A first pinion is fixed to the pedestal concentrically to the first shaft, and a second pinion is fixed to the base end of the second arm concentrically with the second axis. Further, racks are provided in the both of left and right side of the first pinion and the second pinion. A large transferring apparatus is composed so that two transferring apparatus are arranged in one pair, the hand are mutually coupled by a transfer beam. | 05-21-2009 |
| 20090071218 | DIE CUSHION DEVICE FOR PRESS MACHINE - A die cushion apparatus of a press machine in which a discharge opening of a fluid hydraulic pump/motor is directly connected to a pressure chamber on a cushion pressure production side of a fluid hydraulic cylinder and the torque of a rotating shaft of the fluid hydraulic pump/motor is controlled by an electric motor to control a pressure (die cushion pressure) of the pressure chamber on the cushion pressure production side. It is therefore possible to control the die cushion pressure with excellent responsiveness with respect to a die cushion pressure command and prevent occurrence of a surge pressure. The die cushion apparatus also has excellent energy efficiency since energy required for a die cushioning action that a cushion pad receives when effecting die cushioning of a press machine is regenerated as electrical energy through the fluid hydraulic cylinder, fluid hydraulic pump/motor, and electric motor. | 03-19-2009 |
| 20090060791 | MICROCHANNEL CHIP AND METHOD FOR MANUFACTURING SUCH CHIP - The present invention provides a microchannel chip having microchannels fabricated without using an original such as a mold. The microchannel chip of the present invention comprises at least an upper substrate and a lower substrate, the upper substrate and the lower substrate being bonded together, characterized in that at least one non-bonding thin-film layer is formed on the bonding side of at least one substrate and that opposite ends of the non-bonding thin-film layer are each connected to a port open to the atmosphere. When a positive pressure is applied through one port, the area that corresponds to the non-bonding thin-film layer inflates to create a gap that can function as a microchannel, with the result that a liquid and/or a gas can be transferred from one port to the other. | 03-05-2009 |
| 20080295564 | Transfer Press Machine - A transfer press machine which can accurately and promptly check interference and can be easily handled is provided. The transfer press machine includes an interference check device including: a data-conversion constituent element storage section which stores a press-side data-conversion constituent element and a transfer-side data-conversion constituent element in a state of being placed in virtual space to have the same relative positional relationship as in real space; a virtual press operation control section which causes the press-side data-conversion constituent element to perform a virtual press operation in the virtual space according to a press motion; a virtual transfer operation control section which causes the transfer-side data-conversion constituent element to perform a virtual transfer operation in the virtual space according to a transfer motion; a virtual synchronization timing information generation-output section which generates and outputs virtual synchronization timing information, and a virtual interference determination section which determines whether or not interference occurs between the press-side data-conversion constituent element and the transfer-side data-conversion constituent element during a transfer press cycle. | 12-04-2008 |
