公开(公告)号：US06669877B2

公开(公告)日：2003-12-30

申请号：US09899275

申请日：2001-07-06

申请人： Haruyuki Matsubayashi ,  Akira Kanda ,  Takamitsu Yamashita ,  Takashi Yamazaki ,  Yukio Iimura ,  Yutaka Yamaguchi ,  Masamitsu Suzuki

发明人： Haruyuki Matsubayashi ,  Akira Kanda ,  Takamitsu Yamashita ,  Takashi Yamazaki ,  Yukio Iimura ,  Yutaka Yamaguchi ,  Masamitsu Suzuki

IPC分类号： B29C4576

CPC分类号： B29C45/7626 ,  B29C2045/764

摘要： This invention provides a method which makes it possible to reliably detect malfunctions during the ejecting step without rendering the injection molding machine more complicated. An ejector pin is incorporated in the movable die. This ejector pin is connected, via an ejector plate, a connecting rod, a connecting plate and a feed screw, with a servo motor. The force for ejecting the ejector pin pushing a molded product is measured from the driving torque of a servo motor. In this invention, the relationship between driving torque and elapsed time from the initiation of ejection of the molded product is stored as a reference pattern. The tolerance limit and monitoring interval of driving torque are preset relative to the reference pattern. When the value of driving torque falls outside the tolerance limit during the ejecting step, it is judged as a malfunction, and an alarm is generated to stop the machine in a safe state.

公开(公告)号：US07008574B2

公开(公告)日：2006-03-07

申请号：US10677249

申请日：2003-10-03

申请人： Haruyuki Matsubayashi ,  Yukio Iimura ,  Takashi Yamazaki ,  Akira Kanda ,  Takamitsu Yamashita ,  Yutaka Yamaguchi ,  Masamitsu Suzuki

发明人： Haruyuki Matsubayashi ,  Yukio Iimura ,  Takashi Yamazaki ,  Akira Kanda ,  Takamitsu Yamashita ,  Yutaka Yamaguchi ,  Masamitsu Suzuki

IPC分类号： B29C45/77

CPC分类号： B29C45/77 ,  B29C2945/76006 ,  B29C2945/76083 ,  B29C2945/76498 ,  B29C2945/76605 ,  B29C2945/76665 ,  B29C2945/76785 ,  B29C2945/76859 ,  B29C2945/76936

摘要： An electric injection molding machine capable of maintaining a quality of molded articles and capable of suppressing a variation of weight of articles molded by a mold having a plurality of cavities when transferring molding conditions in a hydraulic injection molding machine as they are to the electric injection molding machine. This electric injection molding machine has an electric injection mechanism for injecting a molding material into a mold by a drive force of an electric motor, an injection control unit and a servo driver for controlling the injection motor so as to follow the injection speed reference, and an reference compensation unit for compensating the injection speed reference based on the characteristics of the hydraulic drive system so that fluctuation characteristics of the injection speed with respect to the injection pressure when controlling the electric injection mechanism approximate the fluctuation characteristics of the injection speed with respect to the injection pressure in the hydraulic injection mechanism performing the injection of the molding material to the mold by the hydraulic drive system.

摘要翻译： 一种电动注射成型机，其能够保持成型品的质量，并且能够抑制在液压注射成型机中将成型条件转移至电注射成型时将由具有多个空腔的模具成形的制品的重量变化 机。 该电动注射成型机具有电动注射机构，用于通过电动机的驱动力，注射控制单元和伺服驱动器将成型材料注入到模具中，用于控制注射电动机以遵循注射速度参考，以及 参考补偿单元，用于基于液压驱动系统的特性来补偿喷射速度基准，使得当控制电喷射机构时喷射速度相对于喷射压力的波动特性近似于喷射速度的波动特性 液压喷射机构中的注射压力通过液压驱动系统执行模制材料的注入。

公开(公告)号：US06669459B2

公开(公告)日：2003-12-30

申请号：US09908491

申请日：2001-07-19

申请人： Haruyuki Matsubayashi ,  Yukio Iimura ,  Takashi Yamazaki ,  Akira Kanda ,  Takamitsu Yamashita ,  Yutaka Yamaguchi ,  Masamitsu Suzuki

发明人： Haruyuki Matsubayashi ,  Yukio Iimura ,  Takashi Yamazaki ,  Akira Kanda ,  Takamitsu Yamashita ,  Yutaka Yamaguchi ,  Masamitsu Suzuki

IPC分类号： B29C4577

CPC分类号： B29C45/77 ,  B29C2945/76006 ,  B29C2945/76083 ,  B29C2945/76498 ,  B29C2945/76605 ,  B29C2945/76665 ,  B29C2945/76785 ,  B29C2945/76859 ,  B29C2945/76936

摘要： An electric injection molding machine capable of maintaining a quality of molded articles and capable of minimizing weight variation of molded articles. An electric injection mechanism injects molding material into a mold using an electric motor. An injection control unit and a servo driver control the motor so as to follow an injection speed reference. A compensation unit compensates the injection speed reference based on characteristics of a hydraulic drive system so that fluctuation of injection speed with respect to the injection pressure approximate the fluctuation characteristics of a hydraulic injection mechanism.

摘要翻译： 一种电动注射成型机，能够保持模制品的质量并且能够使模制品的重量变化最小化。 电动注射机构使用电动机将成型材料注入模具。 喷射控制单元和伺服驱动器控制马达以遵循喷射速度参考。 补偿单元基于液压驱动系统的特性补偿喷射速度基准，使得喷射速度相对于喷射压力的波动近似于液压喷射机构的波动特性。

公开(公告)号：US06673282B2

公开(公告)日：2004-01-06

申请号：US10108987

申请日：2002-03-29

申请人： Haruyuki Matsubayashi ,  Takamitsu Yamashita ,  Takashi Yamazaki ,  Motoyuki Miyauchi ,  Yutaka Yamaguchi ,  Masamitsu Suzuki ,  Makoto Nishizawa

发明人： Haruyuki Matsubayashi ,  Takamitsu Yamashita ,  Takashi Yamazaki ,  Motoyuki Miyauchi ,  Yutaka Yamaguchi ,  Masamitsu Suzuki ,  Makoto Nishizawa

IPC分类号： B29C4576

CPC分类号： B22D17/32 ,  B29C45/33 ,  B29C45/661 ,  B29C45/84

摘要： A stationary die is held on the front surface of a stationary platen and a movable die is held on the front surface of a movable platen. A plurality of monitoring sections are set in advance within a moving range of the movable platen and an upper limit of forward thrust of the movable platen is set for each of the monitoring sections. When the forward thrust of the movable platen reaches the upper limit set in one of the monitoring sections during a die closing operation, it is determined that abnormality occurs to stop the movable platen from moving forward. If a die closing mechanism is of a toggle link type, the forward thrust of the movable platen is calculated based on the thrust of a crosshead which drives a toggle link mechanism, the moving speed of the crosshead, and the moving speed of the movable platen.

摘要翻译： 固定模具固定在固定压板的前表面上，并且可移动模具被保持在可动压板的前表面上。 在可动压板的移动范围内预先设置多个监视部，并且为每个监视部设定可动压板的向前推力的上限。 当在压模闭合操作期间可动压板的向前推力达到设置在其中一个监控部分中的上限时，确定异常发生以使可动压板停止向前移动。 如果模具闭合机构是肘节式，则基于驱动肘节连杆机构的十字头的推力，十字头的移动速度和可移动压盘的移动速度来计算可动压板的向前推力 。