JP2017105190A5 - - Google Patents

Description

Mold take-out machine

  The present invention relates to a molded product take-out machine that can suppress displacement vibration of an attachment attached to an entry frame in a short time.

  Japanese Patent Application Laid-Open No. 2010-1111012 (Patent Document 1) includes a takeout head (attachment) driven by a driving source and a molded product takeout device that takes out a molded product from a molding machine. An input table and a control means for controlling the moving speed of the extraction head so as to suppress the displacement vibration of the extraction head by driving a servo motor (drive source) by feedforward control using this table are provided. A technique for suppressing head vibration is disclosed.

  Further, Japanese Patent Laid-Open No. 2004-223798 (Patent Document 2) discloses that a chuck (attachment) for holding a molded product is controlled to move between predetermined positions and a molded product take-out machine that takes out the molded product from a resin molding machine is provided with a chuck. In addition, a vibration suppression device for a molded product take-out machine is disclosed in which a dynamic vibration absorber for generating a vibration that cancels the residual vibration of the movable body when the movement is stopped is disclosed in at least one of the movable bodies that move the chuck. The dynamic vibration absorber that is used encloses the fluid in a container so that it can flow and vibrates it, while converging the vibration with a damping rate due to the viscosity of the fluid.

JP 2010-1111012 A JP 2004-223798 A

  However, the conventional technique of Patent Document 1 has a problem that it takes time to suppress vibration. There is also a problem that it is difficult to set conditions for vibration suppression.

  Further, in the conventional technique described in Patent Document 2, a dynamic vibration absorber that uses the viscosity of a fluid that generates an appropriate resonance vibration in accordance with a change in the extraction condition must be prepared separately, which is a problem in terms of versatility. was there.

  An object of the present invention is to provide a molded product take-out machine capable of suppressing displacement vibration of an attachment attached to each tip of an entry frame on one by active control using one or more electromagnetic actuators. .

  The present invention includes an attachment in each of one or more approach frames controlled by a positioning servo mechanism that uses a motor, and adds a displacement vibration opposite to the attachment displacement vibration from the one or more actuators to the attachment. The present invention is directed to a molded product take-out machine equipped with an active vibration suppressing device that performs active control to suppress the vibration. In the specification of the present application, the attachment is various accessory parts attached to the entry frame, and includes an attitude control device including a take-out head, a reversing portion to which the take-out head is mounted, a chuck device, a cutter device, and the like. . In the present invention, the one or more actuators comprise one or more electromagnetic actuators. The one or more actuators are mounted with one or more electromagnetic actuators on each attachment of the one or more entry frames or on each of the one or more entry frames so as not to collide with the mold of the molding machine. The electromagnetic actuator can arbitrarily set the magnitude of vibration as compared with the dynamic vibration absorber. Therefore, active control can be applied to a molded product take-out machine with high versatility.

  The one or more entry frames include a first entry frame having an attachment to which an insert part used to take out a molded product from the mold of the molding machine or to be inserted into the mold is mounted, and the first entry frame. A second entry frame with an attachment used to separate the waste portion from the molded article used and removed; The one or more entry frames do not need to enter in the vertical direction, but include those that enter in an oblique direction or a horizontal direction.

  In one or more electromagnetic actuators, the direction in which the approach frame enters is perpendicular to the Z direction, the Z direction, and the direction in which the attachment approaches or moves away from the molded product in the mold is perpendicular to the Y direction, the Z direction, and the Y direction. When the direction is defined as the X direction, a first electromagnetic actuator that suppresses displacement vibration in at least the Y direction is included. This is because, in the molded product take-out machine, the vibration in the Y direction greatly affects the removal of the molded product and the insertion of the insert member.

  The one or more electromagnetic actuators may include a first electromagnetic actuator that suppresses displacement vibration in the Y direction and a second electromagnetic actuator that suppresses displacement vibration in the X direction. This is because the displacement vibration in the X direction particularly has a great influence on the positioning accuracy when the molded product is opened at the open position or when the insert part is inserted.

  The one or more electromagnetic actuators include a first electromagnetic actuator that suppresses the displacement vibration in the Y direction, a second electromagnetic actuator that suppresses the displacement vibration in the X direction, and a third electromagnetic actuator that suppresses the displacement vibration in the Z direction. An electromagnetic actuator may be included. If the first to third electromagnetic actuators are provided as described above, it is possible to always perform active control.

  When the attachment includes a posture control device that controls the posture of the take-out head, it is preferable to mount one or more electromagnetic actuators on the posture control device. Although the posture control device has a built-in mechanism for controlling the posture of the take-out head, it is easy to secure a mounting space for one or more electromagnetic actuators and has excellent vibration transmission efficiency to the take-out head. Yes. In addition, since the replacement frequency is very low compared to the replacement frequency of the take-out head, the cost for practical use of active control can be greatly reduced. Therefore, it is preferable that the attitude control device is provided with a storage unit that stores one or more electromagnetic actuators. If there is a storage portion, it is possible to prevent the electromagnetic actuator from unnecessarily interfering with surrounding components.

  In the case where the attachment includes an attitude control device including a take-out head, one or more electromagnetic actuators may be attached to the take-out head. If an electromagnetic actuator is attached to the take-out head, vibration can be suppressed most efficiently.

  When taking out the molded product from the molding machine, one or more electromagnetic actuators may be mounted on the housing of the attitude control device so that the one or more electromagnetic actuators are positioned outside the bottom surface of the housing of the attitude control device. In this way, one or more electromagnetic actuators can be mounted on the housing of the existing attitude control device.

  When the attachment attached to one of the one or more approach frames has a structure in which the take-out head is attached to the attitude control device, the first position and the first position are outside the housing of the attitude control device. It is preferable that a take-out head fixture that can rotate between the two positions is mounted. When the take-out head fixture is in the first position, the take-out head extends along the entry frame and the electromagnetic actuator is located on the lower side of the attitude control device, and the take-out head mount is in the second position. When in the position, the take-out head preferably has a structure extending in a direction perpendicular to the direction in which the entry frame extends, and the electromagnetic actuator is located on the side of the attitude control device. When this take-out head mounting tool is used, when the take-out head enters between the molds, the electromagnetic actuator is positioned below the attitude control device, so that it does not collide with the mold. When the take-out head is outside the mold and is in the second position, the molded product is released from the take-out head. At this time, if the electromagnetic actuator is operated, the displacement vibration of the take-out head is reduced. Can be suppressed.

  You may attach to the front-end | tip outer periphery of an approach frame so that an electromagnetic actuator may be located in the vicinity of an attachment. The entry frame usually does not have its tip between molds. Therefore, if an electromagnetic actuator is arranged on the outer periphery of the front end of the entry frame, vibration for suppressing displacement vibration can be efficiently applied to the attachment in the vicinity.

  The active vibration suppression device is active controlled until the molded product is released at the molded product release position before the molded product is removed from the mold using the attachment provided on the entry frame or before the insert component is inserted into the mold. Is preferably performed. If it does in this way, taking-out of a molded product and insertion of insert parts will become quick, and it can prevent effectively that a molded product deform | transforms by the vibration added before hardening.

  Further, the motor of the servo mechanism that moves the entry frame is an AC servo motor, and a belt type, rope type, or carriage type conveyance mechanism can be provided between the AC servo motor and the entry frame.

  The active vibration suppression device further includes a displacement vibration detection unit that outputs a displacement vibration detection signal proportional to the displacement vibration of the attachment, and an additional vibration detection unit that outputs an additional vibration detection signal proportional to the additional vibration generated by the electromagnetic actuator itself. A drive signal generation unit configured to generate a drive signal necessary for active control of one or more electromagnetic actuators based on the displacement vibration detection signal and the additional vibration detection signal so as to suppress the displacement vibration of the attachment. Yes. In the present invention, at least the displacement vibration detection unit is configured to output a displacement vibration detection signal without using a sensor inserted into the mold of the molding machine. In the present invention, since the output of the displacement vibration detection unit is not affected by the ambient temperature between the molds, the active control can be reliably executed. In addition, since there is no need to insert a sensor into the mold, there is no collision between the sensor and the mold.

  As a displacement vibration detection unit that does not place a sensor in the mold, a displacement current is detected from a motor current signal of a servo mechanism that moves an entry frame, a motor torque signal, or a signal proportional to a motor current signal or a motor torque signal. The one configured to output as a signal can be used. In the active control, the displacement vibration needs to be detected as a displacement vibration detection signal including information of a displacement vibration frequency component proportional to the displacement vibration of the attachment. The inventor has a displacement vibration frequency component in which the motor current signal of the motor in the servo mechanism for moving the approach frame, the motor torque signal, or the signal proportional to the motor current signal or the motor torque signal is proportional to the displacement vibration of the attachment. Found to contain information. Based on this knowledge, as the displacement vibration detection unit, the motor current signal of the motor in the servo mechanism that moves the entry frame, the motor torque signal, or the signal proportional to the motor current signal or the motor torque signal is proportional to the displacement vibration of the attachment. It turned out that what is output as a displacement vibration detection signal can be used. The displacement vibration detection unit detects a motor current signal of the motor in the servo mechanism, a motor torque signal, or a signal proportional to the motor current signal or the motor torque signal, and converts this signal into a displacement vibration in the X direction or the Y direction. If the information of the proportional displacement vibration frequency component is obtained, it is not necessary to provide a special sensor around the attachment or molding machine mold for detecting the displacement vibration of the attachment. Since the motor current signal and torque signal of the motor can always be measured, according to the present invention, active control can be performed even when the unloader operates out of the mold.

  Further, the displacement vibration detection unit may be configured to output a displacement feedback signal of a motor in the servo mechanism for moving the approach frame or a signal proportional to the displacement feedback signal as a displacement vibration detection signal. According to the inventor's research, this is based on the knowledge that the displacement feedback signal also includes a component that changes in proportion to the displacement vibration.

  When the electromagnetic actuator is inserted into the mold or placed close to the mold, the additional vibration detection signal proportional to the additional vibration generated by the electromagnetic actuator itself is also sensorless, and additional vibration without using a sensor. It is preferable that the detection signal is output. Specifically, the additional vibration detection unit detects a counter electromotive force generated when power proportional to the drive signal is input to the electromagnetic actuator, and outputs a signal proportional to the counter electromotive force as an additional vibration detection signal. It can be. Specifically, the counter electromotive force can be obtained by calculation from the voltage appearing on the resistor connected in series with the exciting coil, the voltage appearing at both ends of the exciting coil, and the exciting voltage of the exciting coil. If it is a resistor, it is hardly affected by changes in temperature, so that it can be made sensorless.

  When the electromagnetic actuator is disposed outside the mold, an acceleration sensor that is attached to the mover of the electromagnetic actuator and detects the acceleration of the mover can be used as the additional vibration detection unit. A strain gauge may be used as a sensor other than the acceleration sensor.

  In this specification, displacement vibration means vibration of displacement of the position of the attachment. The displacement vibration includes a plurality of vibration frequency components based on primary vibration, secondary vibration, and the like generated by the operation of the approach frame and the attachment. Therefore, a phase correction unit that generates a corrected displacement vibration detection signal by correcting the phase shift of the displacement vibration detection signal output from the displacement vibration detection unit based on phase shift information obtained in advance may be provided. In this case, the drive signal generation unit performs displacement vibration of the electromagnetic actuator based on the phase-corrected displacement vibration frequency component included in the corrected displacement vibration detection signal and the additional vibration frequency component included in the additional vibration detection signal. It is preferable to generate the drive signal so as to suppress it. There is a phase shift between the displacement vibration detection signal and the actual displacement vibration due to various factors such as the configuration of the displacement vibration detector. In the case of a molded product take-out machine, once setting is performed, the shape and weight of the take-out head and the molded product to be taken out do not change. Therefore, this phase shift can be obtained in advance by prior measurement before starting the take-out operation. Therefore, it is preferable to suppress the oscillation based on the phase shift by correcting the phase shift of the displacement vibration detection signal based on the phase shift information obtained in advance to generate a corrected displacement vibration detection signal. The electromagnetic actuator is often attached to an entry frame or an attachment in order to suppress vibration of the take-out head. The additional vibration detection unit detects the additional vibration in the horizontal direction or the vertical direction generated by the actuator itself, and outputs an additional vibration detection signal including information on the additional vibration frequency component of the additional vibration. When the vibration control operation is performed by operating the actuator based on the corrected displacement vibration detection signal, the active control is performed in a state where the horizontal additional vibration frequency component of the actuator itself is included in the displacement vibration frequency component. . However, when active control using an actuator is performed in a state including this additional vibration frequency component, it may take time to suppress the displacement vibration or the vibration suppression operation may oscillate. Therefore, the drive signal generation unit is based on the displacement vibration frequency component included in the corrected displacement vibration detection signal and the additional vibration frequency component included in the additional vibration detection signal so as not to be affected by the additional vibration frequency component. A drive signal necessary for suppressing the vibration in the horizontal direction or the vertical direction is generated. As described above, the reason why the vibration cannot be suppressed only by the drive signal generated based only on the detection signal including the information of the displacement vibration frequency component is the additional vibration (additional) caused by the vibration of the electromagnetic actuator itself. This is because the vibration frequency component is included in the displacement vibration frequency component. Therefore, the drive signal generation unit adds the detection signal including information on the displacement vibration frequency component, as well as the additional vibration of the vibrator of the electromagnetic actuator that generates the vibration for suppressing the horizontal or vertical vibration of the pickup head. Using the information on the vibration frequency component, it is possible to generate a drive signal that is not affected by the additional vibration frequency component.

  In particular, the drive signal generation unit adjusts the gain of the corrected displacement vibration detection signal and the gain of the additional vibration detection signal, and then adds the additional vibration frequency generated by the additional vibration of the actuator included in the displacement vibration frequency component. An operation is performed to reduce or eliminate the influence of the component. By adjusting the gain, the difference between the dimension and amplitude of the corrected displacement vibration detection signal and the additional vibration detection signal is adjusted to enable calculation.

  According to the inventors' investigation, the additional vibration frequency component detected by the additional vibration detector is preferably a frequency component of the speed of the additional vibration. This is to prevent the oscillation by increasing the attenuation of the additional vibration.

  Moreover, you may provide the displacement sensor which detects a transverse displacement vibration when an attachment is carrying out the displacement vibration in the X direction in the molded article open position. In this case, the active vibration suppressing device is preferably configured to perform active control for suppressing the transverse displacement vibration using the second electromagnetic actuator based on the output of the displacement sensor.

It is a figure which shows the whole structure of the molded product extraction machine of embodiment of this invention. It is a block diagram which shows the structure of a control part. (A) is a waveform diagram displayed so that the vibration state measured by a laser displacement meter and the torque command waveform of the servo motor can be compared with the vibration state of the picking head during the pulling operation, and (B) is each vibration waveform. It is the figure which showed the proportional relationship from the peak value of. It is the figure which showed the process which produces | generates the drive signal of an actuator with the waveform. It is a wave form diagram which shows the active control result using the output of a laser displacement meter as a displacement vibration detection signal, and the active control result of this Embodiment. FIG. 6 is a waveform diagram showing a test result obtained by adding a vibration suppression result when no active control is performed and a vibration suppression result when phase correction is not performed to the result of FIG. 5. (A) And (B) is the perspective view and sectional drawing of an example of the electromagnetic actuator which can be used by this Embodiment. It is a wave form diagram used in order to explain that the displacement feedback signal obtained by integrating a feedback speed is proportional to motor torque. It is a figure which shows an example of the circuit for acquiring the signal proportional to the counter electromotive force which generate | occur | produces in the exciting coil which excites the needle | mover of an electromagnetic actuator. FIG. 6 is a waveform diagram in which a back electromotive force component waveform obtained by calculation and an additional system integrated acceleration waveform (additional vibration detection signal) detected by an acceleration sensor are shown side by side. It is the figure which showed the structure and process which produce | generate the drive signal of an electromagnetic actuator by using the counter electromotive force component waveform calculated using the output voltage of shunt resistance as an additional vibration detection signal, and the waveform. It is a figure used for explanation of performing active control which suppresses transverse displacement vibration in a molded product release position. (A) thru | or (D) is the schematic perspective view of 2nd Embodiment of the molded product take-out machine of this invention, the perspective view of the principal part centering on an attachment, the side view, and the perspective view of the deformation | transformation attachment. is there. (A) to (C) are perspective views of the main part centering on the attachment of the embodiment using the rotation type reversing unit capable of rotating around the frame line of the approach frame as the attitude control device of the attachment. It is a perspective view of a figure, its side view, and a modified attachment. (A) thru | or (D) is the schematic perspective view of 3rd Embodiment of the molded product take-out machine of this invention, the perspective view of the principal part centering on an attachment, the side view, and the perspective view of the deformation | transformation attachment. is there. (A) thru | or (D) are the schematic perspective views of 4th Embodiment of the molded article take-out machine of this invention, the perspective view of the principal part centering on an attachment, the side view, and the perspective view of the deformation | transformation attachment. is there. (A) thru | or (C) are the schematic perspective view of 5th Embodiment of the molded product extraction machine of this invention, the perspective view of the principal part centering on an attachment, and its side view. The test result for confirming what kind of difference comes out when active control is not performed by the difference in the attachment position of the electromagnetic actuator in 2nd Embodiment thru | or 5th Embodiment is shown. The test result for confirming what kind of difference comes out when performing active control by the difference in the attachment position of the electromagnetic actuator in 2nd Embodiment thru | or 5th Embodiment is shown. (A) thru | or (C) are the perspective views of the principal part centering on the attachment of 6th Embodiment of the molded article extraction machine of this invention, the side view, and the perspective view containing the modified attachment. It is a figure which shows the usage example of 6th Embodiment. (A) And (B) shows the state at the time of receiving the insert part inserted into the inside of the mold of the molding machine, and the state at the time of inserting the insert part into the mold to the take-out head of the attachment attached to the tip of the entry frame. Yes. (A) thru | or (C) are a schematic perspective view of the example of use in the case of test | inspecting the state of the molded article taken out with the pick_out | removing head of the attachment attached to the front-end | tip of an approach frame with a camera test | inspection unit, The enlarged perspective view of the principal part, It is an expansion perspective view of the principal part which changed the viewing direction. (A) thru | or (C) is a schematic perspective view of the example of use in the case of cut | disconnecting the molded article M taken out with the pick-up head of the attachment attached to the front-end | tip of an entrance frame with an external nipper, the enlarged perspective view of the principal part, and the direction to see It is an expansion perspective view of the changed principal part. (A) And (B) is the schematic perspective view of 7th Embodiment, and the perspective view of the principal part centering on an attachment. (A) And (B) is the schematic perspective view which changed the viewing direction of 8th Embodiment, respectively. (A) And (B) is an expansion perspective view of the principal part of 8th Embodiment.

  Hereinafter, embodiments of a molded product take-out machine of the present invention will be described in detail with reference to the accompanying drawings.

<First Embodiment>
<Configuration of molded product take-out machine>
FIG. 1 is a diagram showing an overall configuration of a molded product take-out machine 1 according to the present embodiment. The molded product take-out machine 1 is a traverse-type molded product take-out machine, and a base portion is supported by a fixed platen of a molding machine (not shown). A molded product take-out machine 1 shown in FIG. 1 includes a transverse frame 3, a first traveling body 5, a drawing frame 7, a runner entry unit 8, and a molded product suction entry unit 9. The transverse frame 3 has a cantilever beam structure that extends in the X frame direction that is horizontally orthogonal to the longitudinal direction of a molding machine (not shown). The first traveling body 5 is supported by the transverse frame 3 and advances and retreats in the X frame direction along the transverse frame 3 using an AC servomotor 11 included in the servo mechanism as a drive source. The drawing frame 7 is provided on the first traveling body 5 and extends in the Y frame direction parallel to the longitudinal direction of the molding machine. A runner entry unit 8 and a molded product suction entry unit 9 are supported on the drawing frame 7 so as to be movable in the Y direction by using an AC servo motor 13 included in the servo mechanism as a drive source.

  The runner entry unit 8 has a structure including an entry frame 19 ′ that enters the traveling body 17 ′ supported movably on the pull-out frame 7 in the Z direction. The traveling body 17 ′ moves in the Y direction when the belt 15 is rotationally driven by the AC servomotor 13. The approach frame 19 ′ enters in the vertical direction (Z direction) by the drive source 18 ′. The approach frame 19 ′ includes a chuck 6 as an attachment for holding a runner to be discarded.

  The traveling body 17 included in the molded article suction entry unit 9 moves in the Y direction on the extraction frame 7 when the belt 15 is rotationally driven by the AC servo motor 13. The molded article suction entry unit 9 includes an entry frame 19 called an elevating frame that enters in the vertical direction (Z direction) by a drive source 18 and a reversing unit as a posture control device that rotates around the frame line of the entry frame 19. 21 and a take-out head 23 provided on the reversing unit 21. In the present embodiment, the reversing unit 21 and the take-out head 23 constitute an attachment 24. When the reversing unit 21 is not provided, the take-out head 23 constitutes an attachment 24. In the present embodiment, an electromagnetic actuator 25 is attached to the reversing unit 21 of the attachment 24. An acceleration sensor 27 is attached to the mover of the electromagnetic actuator 25. Theoretically, the mounting position of the electromagnetic actuator 25 is not limited to the attachment 24. Of course, the electromagnetic actuator 25 may be mounted to the entry frame 19.

<Configuration of active vibration suppression device>
The molded product take-out machine 1 of the present embodiment includes an active vibration suppressing device 31 shown in FIG. 2 in a control unit not shown in FIG. The active vibration suppression device 31 includes a displacement vibration detection unit 33, a phase correction unit 34, an electromagnetic actuator 25 attached to the reversing unit 21 in order to suppress vibration in the horizontal direction of the attachment 24, and an additional vibration detection unit 35. And a drive signal generator 37. The electromagnetic actuator 25 can apply vibration to the attachment 24. In particular, if the electromagnetic actuator 25 is an electromagnetic actuator, it can generate vibration with an arbitrary power and an arbitrary frequency. In this embodiment, an electromagnetic actuator manufactured by Symphonia Technology Co., Ltd. with a product number of RM040-021 is used. In the present embodiment, the attachment 24 includes the reversing unit 21 attached to the entry frame 19 and the take-out head 23 attached to the reversing unit 21, so that the electromagnetic actuator 25 is replaced with the reversing unit 21 as described above. Wearing. This is because the reversing unit 21 has a predetermined rigidity, so that vibration can be effectively suppressed. The electromagnetic actuator 25 is mounted so that the vibration direction generated by the electromagnetic actuator 25 is the horizontal direction (Y direction or X direction) in order to suppress the vibration in the horizontal direction (Y direction or X direction). In order to suppress vibration in the vertical direction (Z direction), the electromagnetic actuator may be attached so that the vibration direction generated by the electromagnetic actuator is in the vertical direction (Z direction).

  In the present embodiment, the displacement vibration detection unit 33 outputs a displacement vibration detection signal S1 including information on the displacement vibration frequency component proportional to the displacement vibration of the attachment 24 in the horizontal direction (Y direction). The displacement vibration includes a plurality of vibration frequency components based on primary vibration, secondary vibration, and the like generated by the operation of the entry frame 19 and the attachment 24. The vibration frequency component included in the displacement vibration varies depending on the structure of the belt-type or cart-type conveyance mechanism provided between the AC servo motor 13 and the entrance frame 19. In the present embodiment, the displacement vibration detection unit 33 causes the motor current signal, the motor torque signal, the motor current signal, or the motor torque of the servo motor 13 in the servo mechanism that moves the approach frame 19 in the horizontal direction (Y direction). A signal proportional to the signal is output as a displacement vibration detection signal proportional to the displacement vibration. The attachment 24 of the molded product take-out machine needs to enter between the two molds of the molding machine. For this reason, there is a limit to increasing the size of the attachment 24 to which the electromagnetic actuator 25 is attached, and there is almost no room for arranging a sensor for detecting the movement of the attachment 24 to which the electromagnetic actuator 25 is attached in the vicinity of the mold of the molding machine. For this reason, even if the engineer thinks that active control is effective for suppressing vibration of the attachment 24, active control has never been proposed for suppressing vibration of the take-out head.

  The inventor who studied the application of active control to a molded product take-out machine places a sensor for measuring horizontal or vertical vibrations on the attachment 24, or sets the horizontal direction of the take-out head around the mold of the molding machine. A signal that is proportional to the motor current signal, the motor torque signal, the motor current signal, or the motor torque signal of the motor in the servo mechanism that moves the entry frame horizontally or vertically without a sensor for measuring vibration. It was found that a displacement vibration frequency component proportional to the displacement vibration of the attachment 24 in the horizontal direction or the vertical direction is included.

  Therefore, in the present embodiment, the displacement vibration detection unit 33 causes the motor current signal, the motor torque signal, the motor current signal, or the motor current of the servo motor 13 in the servo mechanism that moves the approach frame 19 in the horizontal direction (Y direction). A signal proportional to the torque signal is detected as a displacement vibration detection signal S1. If the information of the displacement vibration frequency component is obtained from this signal S1, it is not necessary to provide a special sensor around the attachment 24 or the mold of the molding machine for detecting the vibration in the horizontal direction (Y direction) of the attachment 24. . As a result, it has become practically possible to introduce active control in the molded product take-out machine. In the present embodiment, in order to positively suppress vibration in the horizontal direction (Y direction) of the entry frame 19, the displacement vibration detection unit 33 receives a motor current signal or an output from the output of the motor driving amplifier 12 of the servo motor 13. The torque signal is acquired. However, in order to suppress the vertical vibration of the entry frame 19, the motor actuator 25 is driven by obtaining a motor current signal or torque signal from the output of the motor drive amplifier of the motor that moves the entry frame 19 in the vertical direction. That's fine. In this case, the mounting position of the electromagnetic actuator 25 may be changed so that the vibration generated by the electromagnetic actuator 25 is directed in the vertical direction. As will be described later, the attachment 24 includes a first electromagnetic actuator that suppresses vibration in the Y direction, a second electromagnetic actuator that suppresses vibration in the X direction, and a third electromagnetic actuator that suppresses vibration in the Z direction. It can also be implemented.

  FIG. 3A shows the vibration waveform A and the servo motor 13 measured by a laser displacement meter (a laser displacement meter sold by Keyence Corporation under the product name IL-S100) of the vibration state of the attachment 24 during the pulling operation. It is the wave form diagram displayed so that it could contrast with the torque command waveform B of. Incidentally, the torque command waveform B is extracted from the torque command output terminal of the servo amplifier sold by Fuji Electric Co., Ltd. under the trade name RYT201D5-LS2-Z25. Comparing waveform A and waveform B, although there is a phase shift, it can be seen from the peak value that both waveforms A and B are in a proportional relationship. This is as shown in FIG. It was also confirmed by plotting the absolute value of the torque command waveform and the absolute value of the output of the laser displacement meter. It has been confirmed that this relationship also appears in the motor current signal of the motor. When attention is paid to the first peak and the second peak of both waveforms, it can be seen that both waveforms have a rise deviation (advance) of 0.03 to 0.04 seconds.

  The phase correction unit 34 corrects the phase shift of the displacement vibration detection signal S1 output from the displacement vibration detection unit 33 based on phase shift information obtained in advance, and generates a corrected displacement vibration detection signal S1 ′. There is a phase shift between the displacement vibration detection signal S1 and the actual displacement vibration due to various factors such as the configuration of the displacement vibration detection unit 33. In the case of the molded product take-out machine, once the setting is made, the shape and weight of the attachment 24 and the molded product to be taken out do not change. Therefore, this phase shift can be obtained in advance by prior measurement before starting the take-out operation. Therefore, in the present embodiment, the phase shift of the displacement vibration detection signal S1 is corrected based on the phase shift information obtained in advance to generate a corrected displacement vibration detection signal S1 ′, thereby preventing the occurrence of oscillation based on the phase shift.

  The additional vibration detection unit 35 detects the additional vibration in the horizontal direction (Y direction) generated by the electromagnetic actuator 25 itself, and outputs an additional vibration detection signal S2 ′ including information on the additional vibration frequency component of the additional vibration. When the vibration control operation is performed by operating the electromagnetic actuator 25 using only the corrected displacement vibration detection signal S1 ′, the horizontal additional vibration frequency component of the electromagnetic actuator 25 itself is included in the displacement vibration frequency component. . However, if this additional vibration frequency component is not also taken into consideration, vibration suppression using the electromagnetic actuator 25 cannot be realized quickly and without oscillation. In the present embodiment, an acceleration sensor 27 that is attached to the mover of the electromagnetic actuator 25 and detects the acceleration of the mover is used as the additional vibration detection unit 35. Currently, as the acceleration sensor 27, for example, a semiconductor acceleration sensor can be used. A semiconductor acceleration sensor having a size that can be mounted on the mover is sold. In this embodiment, an acceleration sensor sold by Kionix, Inc. under the product name KXR94-2050 is used.

  The drive signal generation unit 37 generates vibration in the horizontal direction (Y direction) of the attachment 24 based on the displacement vibration frequency component included in the corrected displacement vibration detection signal S1 ′ and the additional vibration frequency component included in the additional vibration detection signal. A drive signal necessary for active control of the electromagnetic actuator 25 is generated so as to be suppressed. In some cases, it is not possible to suppress vibration by using only a drive signal for driving an actuator generated based only on the displacement vibration detection signal S1 including information on the displacement vibration frequency component. This is because the additional vibration (additional vibration frequency component) generated due to the vibration of the actuator itself is included in the displacement vibration frequency component. Therefore, the addition of the vibrator of the electromagnetic actuator 25 that generates the vibration for suppressing the vibration in the horizontal direction of the attachment 24 from the corrected displacement vibration detection signal S1 ′ obtained by correcting the phase of the detection signal S1 including information on the displacement vibration frequency component. The drive signal Sa generated by removing the additional vibration detection signal S2 ′ proportional to the velocity obtained by integrating the acceleration signal S2 of the acceleration sensor 27 including information on the additional vibration frequency component due to vibration is used. Thereby, the attenuation of the additional vibration can be increased to prevent oscillation, and the active control using the electromagnetic actuator 25 becomes more effective. As a result, the vibration of the attachment 24 can be reliably suppressed in a shorter time than before.

  FIG. 4 is a diagram showing a configuration and a process for generating the drive signal Sa of the electromagnetic actuator together with waveforms. As shown in FIG. 4, the drive signal generation unit 37 includes a first gain adjustment unit 37A, a second gain adjustment unit 37B, and a calculation unit 37C. The first gain adjustment unit 37A adjusts the gain of the corrected displacement vibration detection signal S1 ′ output from the phase correction unit 34. The second gain adjustment unit 37B adjusts the gain of the additional vibration detection signal S2 ′ output from the additional vibration detection unit 35. The first gain adjustment unit 37A and the second gain adjustment unit 37B adjust the difference in dimension and amplitude between the corrected displacement vibration detection signal S1 ′ and the additional vibration detection signal S2 ′ to enable calculation. Then, the calculation unit 37C performs an additional vibration whose gain is adjusted from the corrected displacement vibration detection signal S1 ′ whose gain has been adjusted as a calculation for reducing or eliminating the influence of the additional vibration frequency component generated by the additional vibration of the actuator included in the displacement vibration frequency component. An operation for removing the detection signal S2 'is executed. When the polarity of the output of the acceleration sensor 27 is negative, the addition operation is performed by the calculation unit 37C.

  The active vibration suppression device 31 is preferably always in an operating state when the molded product take-out machine is in an operating state. In this way, vibration of the attachment 24 is always suppressed, so that the molded product can be taken out without being deformed, and it is possible to prevent the molded product that has not been completely cured after being taken out by the take-out head from being deformed. Further, the active vibration suppressing device 31 can perform the operation of taking out the molded product by the attachment 24 at an early stage and reliably if at least the attachment 24 is in an operating state when stopping in the mold of the molding machine.

  Furthermore, the active vibration suppression device 31 may be in an operating state when the attachment 24 performs a stop operation at the molded product release position. In this way, it is possible to prevent deformation of the molded product that has not been completely cured.

<Result of feedback control>
Hereinafter, the results of confirming the effect of feedback control in the active vibration suppressing device used in the present embodiment will be described with reference to FIGS. First, FIG. 5 shows a result when X0 is not active-controlled, X1 shows an active control result using the output of the laser position sensor as a displacement vibration detection signal, and X2 is the present embodiment. The active control result using the corrected displacement vibration detection signal S1 ′ obtained by correcting the phase shift (advance) of 0.02 seconds by using the torque signal waveform S1 as the displacement vibration detection signal is shown. The settling time is the time from when the target position is reached until the vibration amplitude of the reversing unit 21 falls within ± 0.1 mm. From this result, according to the present embodiment, it was confirmed that the same vibration damping effect as that obtained when the laser displacement meter was used was obtained.

  FIG. 6 shows a test result obtained by adding the vibration suppression result X3 when the phase correction is not performed to the result of FIG. From these test results, it was confirmed that the settling time can be suppressed within 0.2 seconds by adding phase correction.

  FIGS. 7A and 7B are a perspective view and a cross-sectional view of an example of an electromagnetic actuator 25 ′ that can be used in the present embodiment. In this electromagnetic actuator 25 ', a mover 25'B is disposed at the center of a cylindrical stator 25'A, and the mover 25'B is supported on the stator 25'A by three leaf springs 25'C. Has a structured. The operating range of the mover 25′B is regulated by the stopper 25′D. This electromagnetic actuator 25 'operates on the same principle as a so-called cylindrical linear motor. The stator 25'A is fixed to the take-out head, and the vibration of the mover 25'B is transmitted to the stator 25'A, whereby active control is performed. The aforementioned acceleration sensor 27 is attached to the mover 25′B.

<Other examples of displacement vibration detector>
The displacement vibration detection unit 33 can be configured to output a displacement feedback signal of the servo motor 13 in the servo mechanism that moves the entry frame 19 or a signal proportional to the displacement feedback signal as a displacement vibration detection signal. The displacement feedback signal is obtained by integrating the “feedback speed” that can be obtained from an off-the-shelf servo amplifier. For example, p. Of the user's manual for servo amplifiers sold under the trademark ALPHA5 by Fuji Electric Systems Co., Ltd. In the state display block diagram shown in 14-2, it is shown that the "return speed" can be output.

  FIG. 8 is a waveform diagram used to explain that the displacement feedback signal obtained by integrating the “feedback speed” is proportional to the motor torque. The waveform in FIG. 8 shows the output of the “feedback speed” of the servo amplifier ALPHA5 manufactured and sold by Fuji Electric Systems Co., Ltd., and the displacement feedback signal derived by adding time advance compensation (40 ms) to the integration result. This is shown along with the waveform of the motor torque of the servo motor driven by the amplifier. 40 ms of time advance compensation means that the phase of the integral value is delayed by the advance time obtained from the prior measurement. As is apparent from FIG. 8, since the displacement feedback signal has the same phase as the motor torque, the displacement feedback signal can also be used as a displacement vibration detection signal in the same manner as the motor torque described above.

<Other examples of additional vibration detection unit>
In the above embodiment, the acceleration sensor 27 is used as the additional vibration detection unit 35. However, the additional vibration detection unit 35 can be configured without using an acceleration sensor, like the displacement vibration detection unit 33. That is, the additional vibration detection unit 35 detects a signal proportional to the counter electromotive force generated when power proportional to the drive signal is input to the electromagnetic actuator, and outputs a signal proportional to the counter electromotive force as an additional vibration detection signal. It can be constituted as follows. In the circuit of FIG. 9, in order to obtain a signal proportional to the back electromotive force Er generated in the exciting coil W that excites the mover of the electromagnetic actuator 25, the voltage Es across the resistance value R1 of the shunt resistor through which the current i flows is calculated. It is an example of a circuit using the voltage Vo applied to the driver DV and the resistance value Ro of the exciting coil W. The voltage Es of the shunt resistor can be expressed as Es = R1 × i = R1 × (Vo−Er) / (R0 + R1) = R1 / (R0 + R1) × (Vo−Er) = k (Vo−Er). However, k = R1 / (R0 + R1) is a known proportionality constant. From this equation, the back electromotive force Er can be calculated as Er = Vo−Es / k.

  FIG. 10 is a waveform diagram in which the component waveform of the back electromotive force Er obtained by calculation and the additional integrated acceleration waveform (additional vibration detection signal) detected by the acceleration sensor 27 are shown. As can be seen from this figure, the component waveform of the back electromotive force Er obtained by calculation and the acceleration integrated waveform (additional vibration detection signal) have the same phase. Therefore, a signal proportional to the counter electromotive force Er can be used as an additional vibration detection signal.

  FIG. 11 is a diagram showing the configuration and process of generating the electromagnetic actuator drive signal Sa using the counter electromotive force component waveform calculated using the output voltage of the shunt resistor as an additional vibration detection signal, together with the waveform. As shown in FIG. 11, the drive signal generation unit 37 includes a first gain adjustment unit 37A, a second gain adjustment unit 37B, and a calculation unit 37C. The first gain adjustment unit 37A adjusts the gain of the corrected displacement vibration detection signal S1 ′ output from the phase correction unit 34. The second gain adjustment unit 37B adjusts the gain of the additional vibration detection signal S2 ′ output from the back electromotive force calculation unit 36 constituting the additional vibration detection unit. The back electromotive force calculation unit 36 calculates the back electromotive force Er based on the above-described formula Er = Vo−Es / k. The first gain adjustment unit 37A and the second gain adjustment unit 37B adjust the difference in dimension and amplitude between the corrected displacement vibration detection signal S1 ′ and the additional vibration detection signal S2 ′ to enable calculation. Then, the calculation unit 37C performs a correction displacement vibration detection signal S1 made up of a gain-adjusted back electromotive force component waveform as a calculation to reduce or eliminate the influence of the additional vibration frequency component generated by the additional vibration of the actuator included in the displacement vibration frequency component. An operation for removing the additional vibration detection signal S2 ′ whose gain has been adjusted from “is executed. When the polarity of the back electromotive force component waveform is negative, an addition operation is performed by the calculation unit 37C.

<Operation period>
The active vibration suppressing device 31 is provided before the molded product is opened at the molded product release position from before the molded product is taken out from the mold using the attachment 24 provided in the entry frame 19 or before the insert component is inserted into the mold. It is preferable to perform active control during the period. If it does in this way, taking-out of a molded product and insertion of insert parts will become quick, and it can prevent effectively that a molded product deform | transforms by the vibration added before hardening.

  Further, the active vibration suppressing device 31 may be in an operating state when the attachment 24 stops at the molded product release position RP as shown in FIG. In this way, it is possible to prevent deformation of the molded product that has not been completely cured. A displacement sensor 26 that detects transverse displacement vibration when the attachment 24 is displaced and vibrated in the transverse direction perpendicular to the left-right direction and the up-down direction may be provided at the molded product release position RP. In this case, the active vibration suppression device 31 is configured to perform active control by further mounting an actuator (not shown) that suppresses transverse displacement vibration on the attachment 24 based on the output of the displacement sensor 26. In this way, most of the vibration applied to the molded product when the molded product is opened can be suppressed.

<Second Embodiment>
FIGS. 13A to 13D are a schematic perspective view of a second embodiment of a molded product take-out machine of the present invention, a perspective view of a main part centering on the attachment, a side view thereof, and a perspective view of a modified attachment. FIG. 13A to 13D, the same reference numerals as those in FIG. 1 are given to the same components as those of the molded product take-out machine of the first embodiment shown in FIG. Therefore, the description is omitted. The second embodiment differs from the first embodiment in that a reversing unit 21 as an attitude control device is provided with a storage portion 21A for storing an electromagnetic actuator 25, and the storage portion 21A has an electromagnetic An acceleration sensor 28 is mounted on the reversing unit 21 as a displacement vibration detection unit that outputs a displacement vibration detection signal including information on the point where the actuator 25 is housed and the displacement vibration frequency component proportional to the displacement vibration of the attachment 24. Is a point. The reversing unit 21 is equipped with a take-out head fixture 22 that can be rotated by 90 ° between the first position and the second position. When the take-out head fixture 22 is in the first position as shown in FIGS. 13A to 13C, the take-out head 23 extends along the entry frame 19, and the take-out head fixture 22 is shown in FIG. When in the second position as shown in FIG. 13D, the takeout head 23 extends in a direction orthogonal to the direction in which the entry frame 19 extends. If the reversing unit 21 as the posture control device has the storage portion 21A, the electromagnetic actuator 25 can be prevented from unnecessarily interfering with surrounding components.

  14A to 14C center on the attachment 24 of the embodiment using a rotation type reversing unit 21 ′ that can rotate around the frame line of the approach frame as the attitude control device of the attachment 24. FIG. 6 is a perspective view of a main part, a side view thereof, and a perspective view of a modified attachment. Also in this example, the rotary reversing unit 21 ′ is provided with a storage portion 21′A that stores the electromagnetic actuator 25, and the electromagnetic actuator 25 is stored in the storage portion 21′A.

<Third Embodiment>
FIGS. 15A to 15D are a schematic perspective view of a third embodiment of a molded product take-out machine according to the present invention, a perspective view of a main part centering on the attachment, a side view thereof, and a perspective view of a modified attachment. FIG. In FIGS. 15A to 15D, the same reference numerals as those in FIG. 1 are attached to the same components as those of the molded product ejector according to the first embodiment shown in FIG. Therefore, the description is omitted. The third embodiment is different from the first embodiment in that an electromagnetic actuator 25 is attached to a take-out head fixture 22 provided in a reversing unit 21 as an attitude control device, and an attachment. The acceleration sensor 28 is attached to the reversing unit 21 as a displacement vibration detection unit that outputs a displacement vibration detection signal including information of a displacement vibration frequency component proportional to 24 displacement vibrations. When the take-out head fixture 22 is in the first position as shown in FIGS. 15A to 15C, the take-out head 23 extends along the entry frame 19 and the electromagnetic actuator 25 is a reversing unit (posture). When the takeout head fixture 22 is in the second position as shown in FIG. 15D, the takeout head 23 is orthogonal to the direction in which the entry frame 19 extends. The electromagnetic actuator 25 extends in the direction and is positioned on the side of the reversing unit (attitude control device) 21. When this take-out head fixture 22 is used, when the take-out head 23 enters between a pair of molds of the molding machine, the electromagnetic actuator 25 collides with the mold because the electromagnetic actuator 25 is positioned below the reversing unit 21. There is no. Further, as shown in FIG. 15D, when the take-out head 23 goes out of the pair of molds and is in the second position, the molded product is released from the take-out head 23. Also at this time, if the electromagnetic actuator 25 is operated to perform active control, the displacement vibration of the take-out head 23 can be suppressed.

<Fourth embodiment>
16A to 16D are a schematic perspective view of a fourth embodiment of a molded product take-out machine according to the present invention, a perspective view of a main part centering on the attachment, a side view thereof, and a perspective view of a modified attachment. FIG. In FIGS. 16A to 16D, the same reference numerals as those in FIG. 1 are attached to the same components as those of the molded product take-out machine of the first embodiment shown in FIG. Therefore, the description is omitted. The fourth embodiment differs from the first embodiment in that the electromagnetic actuator 25 is attached to the outer periphery of the distal end of the entry frame 19 so as to be positioned in the vicinity of the attachment 24, and the attachment 24 The acceleration sensor 28 is mounted on the reversing unit 21 as a displacement vibration detection unit that outputs a displacement vibration detection signal including information on a displacement vibration frequency component proportional to the displacement vibration. The front end of the entry frame 19 does not normally enter between a pair of molds of the molding machine. Therefore, if the electromagnetic actuator 25 is disposed on the outer periphery of the front end of the entry frame, vibration for suppressing displacement vibration can be efficiently applied to the attachment 24 in the vicinity.

<Fifth embodiment>
FIGS. 17A to 17C are a schematic perspective view of a fifth embodiment of a molded product take-out machine of the present invention, a perspective view of a main part centering on an attachment, and a side view thereof. In FIGS. 17A to 17C, the same reference numerals as those in FIG. 1 are attached to the same components as those of the molded product take-out machine of the first embodiment shown in FIG. Therefore, the description is omitted. The fifth embodiment is different from the first embodiment in that the electromagnetic actuator 25 is attached to the part of the approach frame 19 located on the attachment 24 side with respect to the traveling body 17, and the attachment 24. The acceleration sensor 28 is mounted on the reversing unit 21 as a displacement vibration detection unit that outputs a displacement vibration detection signal including information on a displacement vibration frequency component proportional to the displacement vibration of the displacement. Even in this way, vibration for suppressing displacement vibration can be applied to the attachment 24 via the entry frame 19.

<Difference in active control due to differences in electromagnetic actuator mounting position>
FIGS. 18 and 19 show test results for confirming the difference in active control due to the difference in the mounting position of the electromagnetic actuator 25 in the second to fifth embodiments. ing. In these tests, the vibration state of the actuator during the pulling operation was measured with a laser displacement meter. In FIG. 18 and FIG. 19, data indicated by reference numerals 2 to 5 are test data of the second to fifth embodiments. 18 shows attenuation of displacement vibration of the attachment 24 when active control is not performed, and FIG. 19 shows attenuation of displacement vibration of the attachment 24 when active control is performed. As can be seen from a comparison between FIG. 18 and FIG. 19, when active control is performed, after reaching the target position (0.0 mm), in any of the embodiments, the amplitude of the displacement vibration is ± 0 in 0.2 seconds. It can be seen that the attenuation is within 1 mm.

  From this test result, it was confirmed that the amplitude of the displacement vibration was attenuated early in any case although the amplitude of the vibration increased because the initial vibration increased as the position of the electromagnetic actuator was lower.

<Sixth Embodiment>
20A to 20C are a perspective view of a main part centering on an attachment according to a sixth embodiment of a molded product take-out machine of the present invention, a side view thereof, and a perspective view including a modified attachment. . In FIGS. 20A to 20C, the same reference numerals as those in FIG. 15 are attached to the same components as those of the molded product ejector according to the third embodiment shown in FIG. Therefore, the description is omitted. The sixth embodiment is different from the third embodiment in that the take-out head fixture 22 is rotatable by 90 ° between the first position and the second position, and the take-out head 23 is different. A fixed L-shaped mounting plate 20 is mounted, and three electromagnetic actuators 25X, 25Y and 25Z are mounted on the mounting plate 20, and acceleration sensors 27X and 27Y are respectively mounted on the three electromagnetic actuators 25X, 25Y and 25Z. And 27Z are attached. The three electromagnetic actuators 25X to 25Z have a direction in which the entrance frame 19 enters the Z direction, a direction orthogonal to the Z direction, and a direction in which the attachment approaches or moves away from the molded product in the Y direction, the Z direction, and the Y direction. Is defined as the X direction, the first electromagnetic actuator 25Y for suppressing the displacement vibration in the Y direction, the second electromagnetic actuator 25X for suppressing the displacement vibration in the X direction, and the displacement vibration in the Z direction. This is a third electromagnetic actuator 25Z that suppresses the above. If these first to third electromagnetic actuators 25X to 25Z are provided, active control is always performed no matter what route the approach frame 19 is moving or at any position. It becomes possible. The state shown in FIG. 20C shows a state where the take-out head 23 is in a horizontal state.

  FIG. 21 shows a usage example of the sixth embodiment. In this example, the molded product M taken out by the take-out head 23 is inserted into the product storage recess R in the pallet P placed at the product release position. The smaller the product storage recess R, the more the molded product M rubs against the inner wall of the product storage recess R when the take-out head 23 vibrates when the molded product M is inserted. As a result, the surface of the molded product is damaged, or in some cases, a part of the molded product is deformed or damaged. As in this embodiment, vibrations in the X direction, Y direction, and Z direction can be controlled by active control, so that the molded product can be inserted into the predetermined product storage recess R in a shorter time than before. Become.

  22 (A) and 22 (B) show a case where the insert part IW to be inserted into the mold of the molding machine is received by the take-out head 23 of the attachment 24 attached to the tip of the entry frame and a case where the insert part is inserted into the mold. Shows the state. The insert part IW is inserted into a mold of the molding machine, and the molding machine insert-molds the molded product so as to include the insert part IW inside. After molding, the molded product take-out machine takes out the molded product that has been insert-molded. As shown in FIG. 22A, when the insert part IW is taken out, the insert part IW is received while the guide pin GP attached to the take-out head is inserted into the positioning pin PP provided in the part storage unit. Become. As shown in FIG. 22B, when the insert part IW is inserted into the mold MD, the guide pin GP is inserted into the guide hole GH provided in the mold MD, and the insert part IW is positioned and inserted at a predetermined position. In such a case, if the takeout head 23 vibrates, it takes time to take out and insert the insert part IW. However, if the first to third electromagnetic actuators 25X to 25Z are provided as in the present embodiment, the vibration of the take-out head 23 can be quickly controlled by active control. The insertion time can be made faster than before.

  23 (A) to 23 (C) are schematic perspective views of a usage example when the state of the molded product M taken out by the take-out head 23 of the attachment 24 attached to the tip of the entry frame is inspected by the camera inspection unit CU. It is the expansion perspective view of the principal part which changed the perspective view and viewing direction of a part. In this example, in the camera inspection unit CU, three actuators AY, AX, and AZ are mounted around the tip base B of the frame F to which the camera CM is attached. Then, the vibration in the three directions of the frame of the tip base B of the frame F is controlled by active control by the three actuators AY, AX, and AZ. Therefore, according to this use example, after taking out the molded product, on the way to the molded product opening position, the molded product is inspected by photographing the molded product without substantially stopping the movement of the entry frame. can do.

  24A to 24C are a schematic perspective view of an example of use when the molded product M taken out by the take-out head 23 of the attachment 24 attached to the tip of the entry frame is separated by an external nipper, and an enlarged perspective view of the main part. FIG. 5 is an enlarged perspective view of a main part in which the viewing direction is changed. In this example, an external nipper unit NU is mounted on the front end of the traversing frame 3 via a support frame SF. In the external nipper unit NU, three actuators AY, AX, and AZ are mounted on a frame structure FC to which the nipper is attached. Then, the vibration in the three frame directions of the XYZ frame of the frame structure FC is controlled by active control by the three actuators AY, AX, and AZ. Therefore, according to this use example, when the molded product M is cut with the nipper of the external nipper unit NU at the molded product release position after the molded product is taken out, both the vibration of the molded product and the vibration of the external nipper unit NU are obtained. Since the cutting operation can be performed in a state where the above is suppressed, the cutting operation time can be shortened compared to the conventional case.

<Seventh embodiment>
25A and 25B are a schematic perspective view of the seventh embodiment and a perspective view of a main part centering on the attachment 24 '. In the present embodiment, another entry frame provided with an attachment 24 ′ having a chuck 6 for grasping a waste portion of the molded product taken out using the entry frame on the entry frame 19 used for taking out the molded product from the mold of the molding machine. 19 'is also equipped with an electromagnetic actuator 25'. According to the present embodiment, since the vibration of the chuck can be suppressed at an early stage, the chuck operation can be performed quickly.

<Eighth Embodiment>
FIGS. 26A and 26B are schematic perspective views of the eighth embodiment in which the viewing direction is changed, and FIGS. 27A and 27B are main parts of the eighth embodiment. FIG. In FIGS. 26 (A) and (B) and FIGS. 27 (A) and (B), the same components as those of the molded product take-out machine of the first embodiment shown in FIG. The same reference numerals as those assigned to 1 are given. This embodiment, ingress frame 19 advancing the attachment 24 in the interior of the mold of a molding machine (not shown) to move in a horizontal direction, a molded product removing machine of the so-called side entry type. The eighth embodiment is different from the first embodiment in that there is no traversing frame, and an approach frame 19 that is movably supported by a traveling body 17 that is movably mounted on the extraction frame 7 is horizontal. It is a point that moves in the direction (Y direction). Also in this embodiment, the electromagnetic actuator 25 is attached to the take-out head fixture 22 included in the reversing unit 21 of the attachment 24. And the displacement vibration detection part which outputs the displacement vibration detection signal containing the information of the displacement vibration frequency component proportional to the displacement vibration of the attachment 24 is the horizontal direction (Y direction) like the 1st Embodiment. A signal proportional to the motor current signal of the servo motor 13 or the motor torque signal or the motor current signal or the motor torque signal in the servo mechanism to be moved to is detected as a displacement vibration detection signal. As in the present embodiment, even when the entrance frame 19 enters the mold of the molding machine from the horizontal direction (lateral direction), if the electromagnetic actuator 25 is operated and active control is performed, the displacement vibration of the take-out head 23 is performed. Can be suppressed.

<Modification>
In the sixth embodiment, three electromagnetic actuators are mounted in order to suppress vibrations in the XYZ directions. However, the present invention suppresses vibrations in the direction that most affects the deformation of the molded product. If active control is employed, it is not an essential requirement to apply active control to suppress vibration in three directions.

  According to the present invention, in a molded product take-out machine, a molded product take-out machine capable of suppressing displacement vibration of an attachment attached to each tip of one or more entry frames by active control using one or more electromagnetic actuators. Can be provided.

DESCRIPTION OF SYMBOLS 1 Mold take-out machine 3 Traverse frame 5 Traveling body 6 Nipper 7 Pull-out frame 8 Runner entry unit 9 Molded article suction entry unit 11 AC servo motor 12 Motor drive amplifier 13 AC servo motor 15 Belt 17, 17 'Running body 18 Drive source 19, 19 'approach frame 21 reversing unit 23 take-out head 25, 25X, 25Y, 25Z electromagnetic actuator 26 displacement sensor 27, 27X, 27Y, 27Z acceleration sensor 28 acceleration sensor 31 active vibration suppressing device 33 displacement vibration detecting unit 34 phase Correction unit 35 Additional vibration detection unit 37 Drive signal generation unit W Excitation coil DV driver RP Molded product release position M Molded product R Product storage recess IW Insert part GP Guide pin PP pin MD type GH Guide hole CU Camera inspection unit C M Camera F Frame B Tip base AX, AY, AZ Actuator NU External nipper unit SF Support frame FC Frame structure