AIDA ENGINEERING, LTD. Patent applications |
Patent application number | Title | Published |
20150185726 | DIE CUSHION FORCE CONTROL METHOD AND DIE CUSHION DEVICE - There are provided a die cushion force control method and a die cushion device that can improve response delay of die cushion force without changing die cushion waiting position upward. In the die cushion force control method, a servo motor is driven according to a die cushion force command B previously set and the die cushion force is generated on the cushion pad. The die cushion force control method includes a step of allowing the cushion pad to wait in a predetermined die cushion waiting position at which a die cushion force action will start, and a preliminary pressurization step of outputting the die cushion force command B and preliminary applying pressure to the cushion pad before a slide of a press machine reaches the die cushion waiting position. | 07-02-2015 |
20150108865 | COMPOSITE TORQUE ROTATING ELECTRIC MACHINE - A composite torque rotating electric machine includes a stator having armature windings arranged at multiple positions in a circumferential direction, a rotor having a cylindrical core, first permanent magnets arranged on axes (d) and in the circumferential direction on the outer periphery of the rotor, second permanent magnets arranged on axes (d) on the inner periphery side of the rotor across from the permanent magnets on the outer circumference side, third permanent magnets on axes (q) and extending in the longitudinally and radially of the rotor, and air gaps on the outer periphery side of the third permanent magnets and intermediate in the circumferential direction of the first permanent magnets. The radial distance between the first and second magnets is greater than the circumferential distance between the first permanent magnets and the air gaps. A rectifier having multiple slits is disposed between the first permanent magnets and the air gaps. | 04-23-2015 |
20150091406 | PERMANENT MAGNET MOTOR - A permanent magnet motor includes a P-pole-implanted permanent magnet rotator containing a ferrite magnet in a laminated silicon steel sheet, wherein, at one pole, a U-shaped permanent magnet comprising three parts, and, at the outer periphery of the U-shaped magnet, one outer-periphery permanent magnet disposed longitudinally in the peripheral direction are provided to generate permanent magnet torque. At one pole, the permanent magnet rotator generates reluctance torque using two salient poles formed between the U-shaped permanent magnet and the outer-periphery permanent magnet. One central salient pole is formed between the adjacent poles. A stator comprises an M-phase stator winding that is a distributed winding, and a stator core having Ns slots. The ratio of Ns/P/M is a common fraction. When the width of the center salient pole is set to τcp and the slot pitch of the stator core is set to τs, τcp is smaller than τs. | 04-02-2015 |
20150078952 | HIGH-DENSITY MOLDING DEVICE AND HIGH-DENSITY MOLDING METHOD FOR MIXED POWDER - A first die is filled with a mixed powder including a lubricant. A first pressure is applied to the mixed powder to form a mixed powder intermediate compressed body having a density ratio of 85 to 96%, provided that the maximum density of the mixed powder intermediate compressed body that can be molded by applying the first pressure is 100%. The mixed powder intermediate compressed body is heated to the melting point of the lubricant powder. The mixed powder intermediate compressed body is placed in a second die that is pre-heated to the melting point. A second pressure is applied to the mixed powder intermediate compressed body in the second die to form a high-density mixed powder final compressed body. | 03-19-2015 |
20140364997 | SERVO TRANSFER FEEDER AND METHOD FOR CONTROLLING SERVO TRANSFER FEEDER - A servo transfer feeder is configured to transfer a workpiece that is held by a holding member between an upstream press and a downstream press, and includes a storage section that stores a basic cam curve, a maximum velocity, and a maximum acceleration, a moving time calculation section that respectively calculates different moving times as to the moving distance of the holding member by limiting the basic cam curve respectively to the maximum velocity and the maximum acceleration, and a cam curve generation section that generates a motion cam curve by reflecting the moving distance and a longer one of the different moving times to the basic cam curve. The holding member moves between the upstream press and the downstream press, based on the motion cam curve. | 12-11-2014 |
20140352381 | SERVO PRESS LINE OPERATION METHOD AND SERVO PRESS LINE OPERATION CONTROL DEVICE - A servo press line operation method operates a servo press line in which a servo press and a servo transfer device are disposed in a workpiece transfer direction. The servo press line operation method includes causing a transfer controller to receive a master signal that causes the servo transfer device to make a motion in synchronization with the servo press, the transfer controller controlling a motor of the servo transfer device using a motor instruction, causing the transfer controller to determine whether or not an abnormality in the master signal has occurred, and causing the transfer controller to generate the motor instruction based on a stop signal that stops the motor of the servo transfer device, instead of the master signal, when the transfer controller has determined that an abnormality in the master signal has occurred. | 12-04-2014 |
20140305177 | DIE CUSHION FORCE CONTROL METHOD AND DIE CUSHION APPARATUS - A die cushion force control method and a die cushion apparatus generates a die cushion force on a cushion pad based on a die cushion force command value set in advance. A die cushion force command value equal to or larger than a target die cushion force command value is outputted initially in order to suppress an initial die cushion force overshoot generated when the target die cushion force command value configured to be stepwise is used as the die cushion force command value, then a die cushion force command value decreased continuously (gradually) so as to be smaller than the target die cushion force command value is outputted, and subsequently a die cushion force command value increasing gradually so as to be equal to the target die cushion force command value is outputted. | 10-16-2014 |
20140260495 | DRAWING METHOD AND SERVO PRESS SYSTEM - The present invention provides a servo press system and a drawing method using the servo press system. The drawing method according to the aspect of the present invention includes: a stopping step of stopping the slide for a first period in a course of a stroke for performing drawing; a keeping step of reducing the die cushion force to below a predetermined die cushion force and keeping the die cushion force for a second period within the first period for which the slide is stopped; and a restarting step of restarting the slide after keeping the die cushion force for the second period, wherein drawing including the stopping step, the keeping step, and the restarting step is performed at least one time in the course of the stroke for performing drawing. | 09-18-2014 |
20140208964 | PRESS MACHINE AND METHOD FOR CONTROLLING SLIDE OF PRESS MACHINE - There is provided a press machine which can apply a large compression force to a mold as well as impart smooth vibration only in a rectilinear advancing direction to the mold, and thereby can improve the press-formability. A main slide and a sub-slide constitute a slide and at the same time a cylinder-piston mechanism. During press-forming, a compression force is transmitted to the sub-slide (an upper mold) through hydraulic pressure applied interlockingly with driving of the main slide, and the sub-slide is vibrated with the hydraulic pressure being periodically changed. Favorable press-forming can be performed even under relatively difficult press-forming conditions, by controlling the vibration such that a vibration frequency of the sub-slide (the upper mold) becomes 9 Hz or higher but 33.3 Hz or lower and a vibration amplitude of the sub-slide becomes 0.05 mm or larger but 0.5 mm or smaller. | 07-31-2014 |
20140202223 | DIE CUSHION APPARATUS OF PRESS MACHINE AND DIE CUSHION CONTROLLING METHOD - According to the die cushion apparatus of a press machine and the die cushion controlling method of the present invention, in holding the cushion pad on standby at a desired standby position, it is possible to hold the cushion pad on standby in parallel with the lower faces of the dies mounted to the slide, and if the lower faces of the dies are inclined, it is possible to hold the cushion pad on standby in the state of being inclined. Through this configuration, it is possible to easily allow the material to come into contact with the lower faces of the dies from the beginning of the die cushion force control (beginning of the collision), and also possible to smoothen the die cushion action in the plane, thereby enhancing the formability. | 07-24-2014 |
20140096353 | CROSSBAR, AND SYSTEM AND METHOD OF REPLACING A CROSSBAR - Provided is a system for replacing a crossbar, which is capable of promptly and smoothly mounting and removing a crossbar for replacement between a workpiece transferring apparatus and a crossbar replacing apparatus. The crossbar is to be mounted to the workpiece transferring apparatus. The crossbar extends substantially orthogonal to a workpiece transferring direction in a press machine and is configured to be capable of retaining and releasing a workpiece. The crossbar is configured to be switchable between a state in which both end portions of the crossbar are rotatable relative to a center portion of the crossbar about a longitudinal axis of the crossbar, and a state in which both the end portions are not rotatable relative to the center portion. | 04-10-2014 |
20130336830 | METHOD FOR PRODUCING HIGH-STRENGTH SINTERED COMPACT AND HIGH-STRENGTH SINTERED COMPACT PRODUCTION SYSTEM - A method for producing a high-strength sintered compact includes a press molding step and a sintering step, the press molding step including a first press molding step and a second press molding step, a heating step being provided between the first press molding step and the second press molding step, the first press molding step applying a first pressure to the mixed powder in a first die at room temperature that is less than a melting point of the lubricant powder to form a primary green compact, the heating step heating the primary green compact to the melting point of the lubricant powder, and the second press molding step applying a second pressure to the primary green compact in a second die at the melting point of the lubricant powder to form a densified secondary green compact, the second die being pre-heated to the melting point of the lubricant powder. | 12-19-2013 |
20130309050 | WORK TRANSFER APPARATUS - To provide a work transfer apparatus which can transfer works at high speed with controlling respectively the posture of the right and left of works. The work transfer apparatus includes an arm moving back and forth between machines in order to transfer work(s), a crossbar coupled to the arm, and a pair of right and left work holding devices provided at the left and right sides of the crossbar and tilt drive devices being provided on the arm, respectively controlling the work holding devices to rotate around an axis of a longitudinal direction of the crossbar. | 11-21-2013 |
20130300021 | MIXED POWDER HIGH-DENSITY MOLDING METHOD AND MIXED POWDER HIGH-DENSITY MOLDING SYSTEM - A first die is filled with a mixed powder that includes a lubricant powder, and a first pressure is applied to the mixed powder in the first die to form a mixed powder intermediate compressed body. The mixed powder intermediate compressed body is heated to the melting point of the lubricant powder, and the heated mixed powder intermediate compressed body is placed in a second die that has been pre-heated to the melting point of the lubricant powder. A second pressure is applied to the mixed powder intermediate compressed body in the second die to form a high-density mixed powder final compressed body. | 11-14-2013 |
20130269548 | SLIDE MOTION CONTROL APPARATUS FOR MECHANICAL PRESS - A slide motion control apparatus for a mechanical press comprising: a slide which is disposed so as to be relatively vertically movable with respect to a driven body to which a drive force is transmitted through a con rod of the mechanical press; a relative position commander that outputs a relative position command indicating a relative position of the slide with respect to the driven body; a relative position detector that detects a relative position of the slide with respect to the driven body, and outputs a relative position detecting signal indicating the detected relative position; a servomotor; a drive mechanism that relatively moves the slide with respect to the driven body by a drive force of the servomotor; and a controller that controls the servomotor based on a relative position command signal output from the relative position commander, and the relative position detecting signal output from the relative position detector. | 10-17-2013 |
20130169204 | POWER SUPPLY UNIT FOR PRESS MACHINE - A power supply unit for a press machine having a converter (converter circuit) connected to a commercial AC power supply, and an inverter (inverter circuit) connected to a press motor, includes an electrical energy bank, an inrush prevention circuit, an inrush prevention instruction signal generation section, and a contactor switch section, wherein contactors of the inrush prevention circuit are switched from on ON state to an OFF state and inrush prevention resistors of the inrush prevention circuit are connected to AC phase current paths on condition that the inrush prevention instruction signal generation section has generated and output an inrush prevention instruction signal (Sres) during press operation. | 07-04-2013 |
20130126313 | CONVEYING DEVICE - A conveying device includes annular continuous bodies each extending in a conveying direction of an object to be conveyed and each being rotationally driven, and a plate-like member extending in a conveying lateral direction and mounted on each of the annular continuous bodies. The conveying device conveys the object by placing the object on a conveying surface formed by the plate-like member, in which the plate-like member mounted on one of the annular continuous bodies. The plate-like member mounted on another of the annular continuous bodies, which is adjacent to the one of the annular continuous bodies, are arranged in a staggered manner without overlapping with each other when viewed from a direction orthogonal to the conveying surface. Adjacent two of the annular continuous bodies have an interval therebetween in the conveying lateral direction. The interval is expandable and contractable. | 05-23-2013 |
20130118364 | ELECTRIC SERVO PRESS MACHINE - An electric servo press machine is configured to convert a rotation of an electric servomotor into a reciprocating linear motion of a slide to perform press working on a workpiece. The machine includes a clutch mechanism interposed in a power transmission path between the servomotor and the slide, and a brake mechanism for applying a brake onto the slide under a disconnected state in which the servomotor and the power transmission path are decoupled from each other by the clutch mechanism. The machine brings the clutch mechanism into the disconnected state and applies the brake onto the slide upon an immediate stop request, and recovers from immediate stop under a state in which a phase shift between the servomotor and the power transmission path ranging from the clutch mechanism in the disconnected state to the slide is eliminated under a connected state of the clutch mechanism. | 05-16-2013 |
20130104613 | SERVO TRANSFER PRESS SYSTEM | 05-02-2013 |
20130074710 | SERVO PRESS AND SERVO PRESS CONTROLLING METHOD - Provided is a low-cost servo press promoting energy saving by driving a press machine by a driving system suited for the magnitude of a load on a worked object. It includes a first motor coupled to a slide drive shaft to ascend/descend a slide, a second servo motor driving a flywheel, a clutch coupling/decoupling the second servo motor to/from the slide drive shaft, and a press controller controlling rotation of the first and second servo motors and coupling/decoupling of the clutch. The press controller controls to decouple the clutch when the press is small-loaded, thereby ascending/descending the slider by driving the first servo motor, and to couple the clutch when the press is large-loaded, thereby ascending/descending the slider by driving the first and second servo motors. | 03-28-2013 |
20130008761 | BREAKAGE PREVENTION MECHANISM FOR CONVEYING DEVICE AND CONVEYING DEVICE USING BREAKAGE PREVENTION MECHANISM - A breakage prevention mechanism includes a pair of arms which is synchronized and moves approximately parallel, and a crossbar bridged between the top end of the arms. Both end of the crossbar and the arm are connected pivotably around two axis. Both end of the crossbar are configured to be slidable against the arm in X axis direction. A plunger is placed between both end of the crossbar and arm, which protects the crossbar by restraining the pivoting and the sliding of both in the normal condition and releasing the restraint when the unintended force is given. | 01-10-2013 |
20120326373 | REMOVABLY SUPPORTING MECHANISM FOR WORKPIECE HOLDING DEVICE AND WORKPIECE HOLDING DEVICE REPLACEMENT AND SUPPORT APPARATUS - A removably supporting mechanism is provided for a workpiece holding device that can hold and release a workpiece. The workpiece holding device is removably supported on a crossbar extending substantially orthogonal to a workpiece conveying direction of a press machine. The removably supporting mechanism has a guide pin and a guide pin hole. The guide pin is fittable into and engageable with the guide pin hole. One of the guide pin and the guide pin hole is disposed on the workpiece holding device side, whereas another of the guide pin and the guide pin hole is disposed on the crossbar side. The guide pin and the guide pin hole can perform alignment of the workpiece holding device and the crossbar in a direction substantially orthogonal to an inserting direction of the guide pin. | 12-27-2012 |
20120272839 | TANDEM PRESS LINE - A tandem press line switches from a synchronized high-speed press control to a synchronized low-speed press control when a high-speed, line master control signal is switched to a low-speed line master control signal. For a press having a slide position which has been determined to be within a press region, the synchronized low-speed press control can be switched to a non-synchronized high-speed press control that is based on a non-synchronized high-speed individual press control signal that is not synchronized with the low-speed line master control signal at least during a period in which the slide position is within the press region, and the non-synchronized high-speed press control can be switched to the synchronized low-speed press control on condition that a press resynchronization point has been reached. | 11-01-2012 |
20120230888 | TEMPERATURE CONTROL 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. | 09-13-2012 |
20120192607 | SERVO PRESS SYSTEM - A servo press system in which a servo transfer device implements a transfer operation by utilizing first transfer operation instruction information that is generated depending on a mechanical motion state of a press element of a servo press or second transfer operation instruction information that is generated independently of the mechanical motion state of the press element during a press operation using a pendulum motion. | 08-02-2012 |
20120144639 | TOOL REPLACEMENT METHOD FOR TANDEM PRESS SYSTEM AND TANDEM PRESS SYSTEM - A tandem press system includes a plurality of presses disposed in a workpiece transfer direction, a workpiece transfer device that transfers a workpiece from an upstream press to a downstream press using a tool mounted on the workpiece transfer device via a crossbar, and a tool replacement device that replaces the tool mounted on the workpiece transfer device. The tool replacement device can be transferred from an inter-press space between the upstream press and the downstream press to an external space in a tool replacement direction independently of transfer of a bolster provided with a die to an external space in a die replacement direction. | 06-14-2012 |
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 |