| Patent Number |
Title Of Patent |
Date Issued |
| 7344369 |
Controller for injection molding machine |
March 18, 2008 |
| A controller of an injection molding machine which compensates a delay in an injection velocity changeover and a delay at the time of changeover to the pressure-holding process, and is capable of more accurate and stable injection velocity control and changing control from the injection |
| 7313967 |
Pressure abnormality detecting device for injection molding machine |
January 1, 2008 |
| An injection screw position Xa, injection speed Va, and injection pressure Pa are read. A deceleration distance D the injection screw moves from the point where the injection operation has been stopped at the current moment to be decelerated by maximum deceleration till the point where t |
| 7287971 |
Load determining device for an electrically-operated injection molding machine |
October 30, 2007 |
| A load determining device for an electrically-operated injection molding machine in which a load exerted on a movable part is detected based on the motor current or by an observer, with removing the influence of motor temperature. Upon start of continuous molding, a maximum load detected |
| 7275922 |
Controller for an ejector mechanism in an injection molding machine |
October 2, 2007 |
| A controller and a method for an ejector mechanism in an injection molding machine for appropriately setting a terminal position of a forward motion of ejector pins of the ejector mechanism. The terminal position of the forward motion is set to a position where an elastic force of return |
| 7261540 |
Controller of injection molding machine |
August 28, 2007 |
| A controller of injection molding machine capable of stabilizing a peak pressure of resin appearing when an injection process is switched to a pressure-holding process, by reducing the variation of the peak pressure. Resin pressure Pr is detected at every predetermined sampling period |
| 7261538 |
Monitoring device for an injection molding machine |
August 28, 2007 |
| A monitoring device for an injection molding machine whereby the state of resin sheared by a rotating screw can be easily monitored. During the period from the start to end of metering process, the rate of heat generated by a heater for heating an injection cylinder is obtained by mu |
| 7150619 |
Controller of injection molding machine |
December 19, 2006 |
| A crosshead position Cf for obtaining a set mold clamping force is obtained based on a mold touch position Ct obtained in mold clamping process in immediately preceding molding cycle, and a crosshead is allowed to move to the position Cf. During that time, it is determined whether a |
| 7144531 |
Method of and device for evaluating resin using injection molding machine |
December 5, 2006 |
| A method of and an apparatus for measuring and evaluating characteristics of material resin using an injection molding machine. Injections of resin are performed with different resin temperatures TCi and different injection velocities Vj to detect injection pressures Pr at set screw |
| 7125232 |
Controller of injection molding machine |
October 24, 2006 |
| A screw is rotated at a set speed and retreated by performing back pressure control for keeping a resin pressure at a set pressure. When the retreat position of the screw reaches a change point set nearby a set metering completion position, the back pressure control for keeping the r |
| 7021917 |
Injection molding machine metering and control device |
April 4, 2006 |
| The retraction of the screw is controlled on the basis of the pressure deviation between the set resin pressure and the detected resin pressure. Furthermore, the screw is caused to rotate at a set speed. Moreover, when the deviation between the metering completion position and the curren |
| 6902386 |
Electric injection molding machine |
June 7, 2005 |
| An electric servo motor is controlled through a pressure control loop wherein a control object is the injection mechanism of an electric injection molding machine. A band elimination filter, which attenuates a frequency component of a band with predetermined width to be determined ba |
| 6616872 |
Method of and apparatus for determining separating force of molded product from mold |
September 9, 2003 |
| A method of and an apparatus for precisely determining a separating force of a molded product from a mold by an ejector in an injection molding machine. A load exerted on an ejector mechanism in operation without a product molded in the mold is constituted by an inner resistance of the |
| 6562262 |
Method for determining molding characteristic and injection molding machine |
May 13, 2003 |
| An injection is carried out under a certain molding condition with a nozzle in an injection molding machine left open to sample an injection pressure Pr in every certain cycle for storing. Detected pressure data Pr(0) to Pr(N) for one shot is stored as reference pressure data Pr0(0) to P |
| 6527534 |
Ejector controller of injection molding machine |
March 4, 2003 |
| A disturbance estimating observer is provided, which estimates a load applied to a servomotor for driving an ejector axis. When an ejector operates, the disturbance load torque estimated by the observer is sampled for each specific period (0 to j), and the data DA (0, 0) to DA (i, j) of |
| 6468064 |
Injection molding machine controller |
October 22, 2002 |
| A measurement start position is set and a screw is forcedly moved from a dwell completion position up to the measurement start position to start the measurement step. Because a measurement stroke, that is, a screw movement stroke from a measurement start position up to a set measurement |
| 6440338 |
Method, apparatus, and medium for forming molding condition and molding machine |
August 27, 2002 |
| A resin flow analysis in a die is performed by CAE or the like to obtain a resin pressure curve at a resin inlet port or a resin pressure curve at a nozzle end portion of a molding machine. Injection (air shot) is performed while a nozzle is separated from a die, so that an injection pre |
| 6409495 |
Mold protection device for injection molding machine |
June 25, 2002 |
| A mold protection device for an injection molding machine capable of automatically setting a reference value for detecting an abnormal load exerted on a mold in a mold closing process. A load exerted on a servomotor for driving a mold clamping mechanism is estimated by a disturbance |
| 6365075 |
Method and apparatus for controlling torque of an injection molding machine |
April 2, 2002 |
| A metering controller capable of making a metering time constant and kneading of resin uniform. A screw torque STRQ(n) is detected and stored at every processing period from a start of metering as reference data. A screw rotational speed command is changed over to a set value at each |
| 5906777 |
Injection molding control method for an injection molding machine |
May 25, 1999 |
| Clamping and injection operations are executed partially in parallel by adjusting a clamping speed and an injection start timing T so that sum .SIGMA.P of resin pressure acting on the parting plane of a mold cavity will not exceed mold clamping force F outputted at that time. An injectio |
| 5568028 |
Tool life management system |
October 22, 1996 |
| A tool life management system for managing a tool life. The system includes a load torque measuring device for measuring an initial load torque of a spindle attached to a tool during an initial machining operation and for measuring an actual load torque of the spindle attached to the too |
| 5567367 |
Zero correction method for a pressure detecting device of an injection molding machine |
October 22, 1996 |
| An average is obtained between output readings of a pressure sensor obtained when forward and reverse thrusts are applied to an injection screw by positively driving a servomotor for injection. The average value is used as a correction value for a reading deviation of the pressure se |
