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51. 发明授权

US5342559A Method of controlling electrically operated injection molding machine 失效
标题翻译：电动注塑机控制方法
公开(公告)号：US5342559A
公开(公告)日：1994-08-30
申请号：US934517
申请日：1992-10-05
申请人： Masao Kamiguchi , Minoru Kobayashi
发明人： Masao Kamiguchi , Minoru Kobayashi
IPC分类号： B29C45/50 , B29C45/77 , B29C45/76
CPC分类号： B29C45/77
摘要： An injection shaft of an electrically operated injection molding machine is entirely controlled based on its positions. In the injection process, an injection speed is changed over in accordance with a screw position for the processing at the injection process. In the subsequent dwell process, the screw is axially driven by a servomotor, a pressure applied to the resin is detected, and a difference between the pressure and a dwell pressure which has been set is found. The amount of movement in response to the difference is output to the servomotor for the drive thereof so as to keep the screw at the position. As a result, the dwell pressure is controlled by the screw position. Moreover, also in the metering process, the resin pressure is detected, and the screw is moved according to a difference between a set back pressure and a detected resin pressure so as to correspond with the back pressure which has been set. In this manner, the control of the dwell and back pressure can also be performed through the control of the screw positions, thus preventing the screw from substantially being displaced and largely deviating from the preset pressure at the time of the changeover of the pressure.
摘要翻译： PCT No.PCT / JP92 / 00102 Sec。 371日期：1992年10月5日 102（e）日期1992年10月5日PCT提交1992年2月3日PCT公布。出版物WO92 / 13701 日期为1992年8月20日。电动注塑机的注射轴完全根据其位置进行控制。在注射过程中，根据注射过程中的处理的螺钉位置改变喷射速度。在随后的停留过程中，螺杆由伺服电机轴向驱动，检测到施加到树脂上的压力，并且发现已经设定的压力和停留压力之间的差。响应于差异的运动量被输出到用于其驱动的伺服电动机，以便将螺钉保持在该位置。结果，停留压力由螺丝位置控制。此外，在计量过程中，还检测树脂压力，并且根据设定背压和检测到的树脂压力之间的差异来移动螺杆，以便与已经设定的背压对应。以这种方式，也可以通过控制螺杆位置来执行驻留和背压的控制，从而防止在转换压力时螺杆基本上被移位并且大大偏离预设压力。

52. 发明授权

US5279778A Positioning correction method for motor-operated injection molding machine 失效
标题翻译：电动注塑机定位校正方法
公开(公告)号：US5279778A
公开(公告)日：1994-01-18
申请号：US988108
申请日：1993-02-10
申请人： Takayuki Taira , Susumu Ito , Masao Kamiguchi , Minoru Kobayashi , Ryuji Tai
发明人： Takayuki Taira , Susumu Ito , Masao Kamiguchi , Minoru Kobayashi , Ryuji Tai
IPC分类号： B29C45/64 , B29C45/66 , B29C45/76
CPC分类号： B29C45/7653 , B29C45/66 , B29C45/661
摘要： A positioning correction method for a motor-operated injection molding machine, intended to eliminate waste of power supply to or overheat of servomotors by locking up in an ideal state the motor-operated injection molding machine, which uses a toggle mechanism or crank for mold clamping and other operations. During the lockup period, a load RA acting on a mold clamping servomotor 7 is detected (S8), and a position command value PM for the servomotor 7 is increased or decreased in the next cycle in a direction such that the value of the load RA is reduced, if the value of the load RA is greater than a preset reference value V0 (S12, S13). As a result, a rotation center Q1 of a crank 2 and two opposite ends Q2 of a link 3 are locked up in a straight line, so that a moment of rotation produced by a mold clamping reaction force is removed from the rotation center Q1 of the crank 2. In this manner, the mold clamping reaction force can be maintained during the lockup period without applying a driving torque to the mold clamping servomotor 7 by energizing the same. Thus, not only the waste of power can be prevented but also the load on the mold clamping servomotor 7 can be reduced, thereby unnecessitating the use of a stopper or other means for maintaining the mold clamping reaction force.
摘要翻译： PCT No.PCT / JP92 / 00748 Sec。 371日期：1993年1月20日 102（e）日期1993年2月10日PCT提交1992年6月11日PCT公布。出版物WO93 / 日期1997年7月1日。一种用于电动注塑机的定位校正方法，旨在通过在理想状态下锁定伺服电机的供电或过热而浪费电动注塑机，其使用肘节机构或曲柄，用于模具夹紧和其他操作。在锁定期间，检测作用于合模伺服电动机7的负载RA（S8），并且在下一个周期中使伺服电动机7的位置指令值PM在负载RA的值如果负载RA的值大于预设的参考值V0（S12，S13），则减小。结果，曲柄2的旋转中心Q1和连杆3的两个相对端部Q2被锁定在一条直线上，使得由合模反作用力产生的转动力矩从旋转中心Q1 以这种方式，在锁定期间可以保持模具夹紧反作用力，而不通过对模具夹紧伺服电动机7施力而施加驱动扭矩。因此，不仅可以防止动力浪费，而且可以减少模具夹紧伺服电动机7的负荷，从而不需要使用止动件或其他装置来维持合模反作用力。

53. 发明授权

US5153149A Injection apparatus having a check valve abnormality detector 失效
标题翻译：具有检查阀异常检测器的注射装置
公开(公告)号：US5153149A
公开(公告)日：1992-10-06
申请号：US692978
申请日：1991-04-29
申请人： Hideo Naito , Masao Kamiguchi
发明人： Hideo Naito , Masao Kamiguchi
IPC分类号： B29C45/77 , B29C45/50 , B29C45/52 , B29C45/57 , B29C45/76
CPC分类号： B29C45/768 , B29C45/52
摘要： An injection apparatus of an injection-molding machine is described, including a servomotor for screw rotation including a pulse coder, the motor being driven in accordance with the difference between a command output from a control section of the injection-molding machine and an output from the pulse coder, thereby rotating a screw. During injection and pressure hold processes in which the motor is rendered nonoperative, the screw rotates as molten resin flows backward, if a check valve attached to the screw does not function normally, and this situation is detected as an abnormality of the check valve by a control section.

54. 发明授权

US5069613A Crank type mold clamping apparatus with variable stroke 失效
标题翻译： CRANK型模具夹具具有可变的STROKE
公开(公告)号：US5069613A
公开(公告)日：1991-12-03
申请号：US343146
申请日：1989-04-13
申请人： Yoshiharu Inaba , Masao Kamiguchi
发明人： Yoshiharu Inaba , Masao Kamiguchi
IPC分类号： B29C45/66
CPC分类号： B29C45/66
摘要： A crank mold clamping apparatus capable of variably adjusting a mold-opening stroke for permitting usage of various types of molds which includes a numerical control apparatus for controlling a servomotor for driving a crank plate connected to a movable platen in forward and reverse rotation within a limited rotation region. The numerical control apparatus calculates a rotation angle between rotational positions of the crank plate corresponding to mold clamping and mold-opening end positions of the movable plate, respectively, so that the crank plate is rotated for the calculated rotation angle in the direction of mold-opening or mold-closing to perform mold-opening or mold-closing when a mold-opening stroke, determined in accordance with the size of a mold to be used, is supplied.

55. 发明授权

US5045253A Automatic mold thickness adjusting method for a toggle-type mold clamping apparatus 失效
标题翻译：一种肘式夹模装置的自动模具厚度调整方法
公开(公告)号：US5045253A
公开(公告)日：1991-09-03
申请号：US432765
申请日：1989-10-26
申请人： Masao Kamiguchi , Masato Yamamura , Yuichi Hosoyo , Minoru Kobayashi , Shuichi Wakebe
发明人： Masao Kamiguchi , Masato Yamamura , Yuichi Hosoyo , Minoru Kobayashi , Shuichi Wakebe
IPC分类号： B22D17/26 , B29C33/22 , B29C37/00 , B29C45/17 , B29C45/66 , B30B1/10 , B30B15/06
CPC分类号： B30B1/103 , B29C37/00 , B29C45/1751 , B29C2037/903 , B29C33/22
摘要： An automatic mold thickness adjusting method is provided, which is capable of effecting mold thickness adjustment in a short time by a low-cost mold clamping apparatus using a general-purpose motor for mold thickness adjustment, and of preventing an overcurrent from flowing in the motor. A crosshead is retreated to a position behind a position (LO) for production of a set mold clamping force when the crosshead reaches a lock-up position before a die-touch state is attained, or when the die-touch state is established in a crosshead position before the aforesaid position (LO), and a rear platen is advanced so that the die-touch state is attained. Thereafter, the motor for mold thickness adjustment is driven in a direction to retreat the rear platen, and at the same time, a servomotor is driven in a direction to advance a movable platen, at a speed equal to the retreating speed of the rear platen obtained by multiplying a program-specified speed by an override value corresponding to a crosshead shift position, thereby causing the crosshead to reach the aforesaid position (LO).
摘要翻译： PCT No.PCT / JP89 / 00411 Sec。 371日期1989年10月26日第 102（e）日期1989年10月26日PCT 1989年4月17日PCT PCT。公开号WO89 / 10250 PCT 日本特开1989年11月2日。提供一种自动模具厚度调整方法，其能够通过使用通用电机进行模具厚度调整的低成本的模具夹紧装置在短时间内进行模具厚度调整，并且防止在电机中流过的电流。当十字头在达到模具接触状态之前达到锁定位置时，或者当模具接触状态建立在模具接触状态时，十字头被退回到位置后方的位置（LO），用于产生设定的模具夹紧力在上述位置（LO）之前的十字头位置，并且前部压板前进使得达到模具接触状态。此后，用于模具厚度调节的电动机沿着使后压板退回的方向被驱动，同时，伺服电机以等于后压板的后退速度的方向驱动可动压板的方向通过将程序指定的速度乘以与十字头位移位置相对应的超驰值而获得，从而使十字头达到上述位置（LO）。

56. 发明授权

US5002708A Drive system abnormality detecting method and apparatus of an injection-molding machine 失效
标题翻译：驱动系统异常检测方法和注射成型机的装置
公开(公告)号：US5002708A
公开(公告)日：1991-03-26
申请号：US363514
申请日：1989-05-30
申请人： Yoshiharu Inaba , Masao Kamiguchi
发明人： Yoshiharu Inaba , Masao Kamiguchi
IPC分类号： B29C45/17 , B29C45/50 , B29C45/76 , B29C45/77
CPC分类号： B29C45/768
摘要： A drive system abnormality detecting apparatus of an injection-molding machine includes a microprocessor (19) for a controller, which causes a display unit (24) to indicate the occurrence of an abnormal situation. The drive of a servomotor (5) for an injection is stopped when the microprocessor concludes that the difference between the driving current of the servomotor and the output of a force detector, indicative of the resin pressure inside a cylinder (2), is not within predetermined permissible limits. The motor driving current and the detector output are individually periodically detected, during the time interval between the start of injection to the end of metering. By doing th is, the microprocessor prevents production of defective moldings, attributable to the occurrence of an abnormal situation in a screw drive system, and damage to components of the screw drive system and dies.

57. 发明授权

US4975227A Method for removing clogging of a nozzle in a motor-driven injection molding machine 失效
标题翻译：一种用于消除电动注射成型机中喷嘴堵塞的方法
公开(公告)号：US4975227A
公开(公告)日：1990-12-04
申请号：US343262
申请日：1989-04-14
申请人： Masao Kamiguchi
发明人： Masao Kamiguchi
IPC分类号： B29C45/24 , B29C45/17 , B29C45/76 , B29C45/84 , G05B19/4062
CPC分类号： B29C45/84 , B29C45/17 , B29C45/76 , B29C45/768 , G05B19/4062 , G05B2219/42268 , G05B2219/45244
摘要： A method for removing resin clogging a nozzle in a motor-driven injection molding machine, which is capable of removing resin clogged in the nozzle without an excessive load being continuously applied to a servomotor for driving a screw.When the nozzle is clogged with resin, pulse distribution to a servo-circuit is started to move the screw to a foremost position thereof (S1). If a feed stop state, wherein the pulse distribution is stopped by an increase of the deviation of an actual movement amount from a command movement amount for the servomotor above a predetermined value, is not ended before passage of a time set by a timer started at the time the feed stop state occurs (S3-S6), the forward movement of the screw is stopped by an alarm process (S7).
摘要翻译： PCT No.PCT / JP88 / 00884 Sec。 371日期：1989年4月14日 102（e）日期1989年4月14日PCT提交1988年9月2日PCT公布。出版物WO89 / 01861 日期：1989年3月9日。一种用于除去在电动注射成型机中堵塞喷嘴的树脂堵塞方法，其能够将没有过大负载的堵塞在喷嘴中的树脂连续地施加到用于驱动螺杆的伺服电动机上。当喷嘴被树脂堵塞时，开始向伺服电路的脉冲分配，使螺杆移动到其最前端（S1）。如果通过将实际移动量与伺服电动机的指令移动量的偏差增加到高于预定值来停止脉冲分配的进给停止状态在由定时器设定的时间过去之前不会结束发生进给停止状态的时间（S3-S6），通过报警处理来停止螺杆的向前移动（S7）。

58. 发明授权

US4826418A Injection molding machine capable of starting and stopping by remote-control 失效
标题翻译：注塑机能够通过遥控启动和停止
公开(公告)号：US4826418A
公开(公告)日：1989-05-02
申请号：US205323
申请日：1988-05-02
申请人： Masao Kamiguchi
发明人： Masao Kamiguchi
IPC分类号： G05B9/02 , B22D17/32 , B29C45/76 , G05B19/4067 , B29C45/78
CPC分类号： B29C45/76 , G05B19/4067 , G05B2219/33285 , G05B2219/36169 , G05B2219/45244
摘要： An injection molding machine includes a numerical control system in communication with a host computer, the numerical control system having incorporated therein a computer, wherein the injection molding machine can itself start and stop in operation on the basis of stored data indicating that the injection molding machine is in a state capable of being operated or in a state incapable of being operated. Pre-processing is executed in response to a start-up signal from the host computer (steps S4 through S9). If a malfunction or abnormality happens during the pre-processing, the location and thus the existence of the abnormality is stored in memory of the numerical control system. After completion of the pre-processing, if the stored abnormalities are judged to be restorable on the basis of the storage contents in the memory, an abnormality restoration processing is executed (S17) and, subsequently, automatic operation is carried out (S11). A terminating process is then executed in response to a stop command from the host computer (S14), and the operation is halted.

59. 发明授权

US4812268A Suckback method and apparatus in an injection molding machine 失效
标题翻译：注塑机中的回吸方法和设备
公开(公告)号：US4812268A
公开(公告)日：1989-03-14
申请号：US196080
申请日：1988-03-22
申请人： Masao Kamiguchi , Hiroshi Umemoto
发明人： Masao Kamiguchi , Hiroshi Umemoto
IPC分类号： B29C45/50 , B29C45/76 , G05B19/23 , B29C45/77
CPC分类号： G05B19/232 , B29C45/76 , B29C2045/1792 , B29C2045/5096 , G05B2219/45244
摘要： A suckback method and apparatus is capable of positively effecting a suckback operation in an injection molding machine using a servomotor as an injection axis drive source for axially driving a screw. When the screw reaches a metering completion position, screw rotation is stopped and a follow-up operation for an error register is carried out so that an error amount accumulated in the error register becomes equal to zero (steps S1, S4, S5). Then, a torque limit for the servomotor and for application of back pressure is released (step S8), and the screw is driven backwardly by the servomotor by a predetermined suckback amount (step 11).

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