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    • 2. 发明授权
    • Gate-cut and ejection control apparatus and control method for an
injection molding machine
    • 注射成型机的切断喷射控制装置及控制方法
    • US5492658A
    • 1996-02-20
    • US356207
    • 1994-12-19
    • Masakazu OhnoYukio YoshizawaShoji MiyajimaSumio SatoToshio InageMotohiro Kobayashi
    • Masakazu OhnoYukio YoshizawaShoji MiyajimaSumio SatoToshio InageMotohiro Kobayashi
    • B29C45/38B29C45/40B29C45/76
    • B29C45/40B29C45/38B29C45/7626B29C2045/764Y10S425/051
    • The present intention intends to operate an ejector which carries out gate cut and product ejection in an injection molding machine, at optimal speeds, respectively. According to the present invention, a control unit for controlling hydraulic or electric drive means for operating one or more than one ejector pin comprises operation speed setting means for gate cut and another operation speed setting means for product ejection. Such a structure enables to carry out gate cut by operating an ejector unit controlled by an ejector unit operation speed setting means for a gate cut and, subsequently, to carry out a product ejection from metallic molds by operating the ejector unit controlled by another ejector unit operation speed setting means for product ejection. The ejector unit is set at a comparatively high operation speed for gate cut so that no gate trace will remain, and at a comparatively low operation speed for product ejection so that no cracks will be generated in the product.
    • 目的在于以最佳速度分别在注射成型机中进行浇口切割和产品喷射的喷射器。 根据本发明,用于控制用于操作一个或多个顶针的液压或电驱动装置的控制单元包括用于闸板切割的操作速度设定装置和用于产品喷射的另一操作速度设定装置。 这种结构能够通过操作由喷射器单元操作的喷射器单元进行闸板切割,喷射器单元操作速度设定装置用于浇口切割,并且随后通过操作由另一个喷射器单元控制的喷射器单元从金属模具执行产品喷射 用于产品喷射的操作速度设定装置。 喷射器单元被设置为相对较高的操作速度以进行栅极切割,使得不会留下栅极迹线,并且以相对低的操作速度进行产品喷射,使得产品中不会产生裂纹。
    • 4. 发明授权
    • Drive control apparatus for electric injection molding machine
    • 电动注塑机驱动控制装置
    • US6142760A
    • 2000-11-07
    • US220404
    • 1998-12-24
    • Nobuya NiizekiMotohiro Kobayashi
    • Nobuya NiizekiMotohiro Kobayashi
    • B29C45/46B29C45/76B29C45/77
    • B29C45/76B29C2045/1792B29C2945/76006B29C2945/76033B29C2945/76083B29C2945/7611B29C2945/76511B29C2945/76568B29C2945/76605B29C2945/76665B29C45/7666
    • A drive control apparatus is provided for an electric injection molding machine, in which a screw is used to inject melted resin into a cavity of a metal mold. Herein, the screw is driven to move in a desired direction by using first and second servo motors, which are connected together using a belt, for example. In the drive control apparatus, a motion controller produces a drive control signal to control operation of the screw. A master servo amplifier inputs the drive control signal to control the first servo motor, wherein a position of a rotor of the first servo motor is detected and is used as a feedback value. The master servo amplifier further produces a torque instruction signal representing a ratio against rated output of the first servo motor by which the first servo motor is to be driven. For example, frequency of the torque instruction represents rotation speed of the motor, while amplitude represents magnitude of torque. A slave servo amplifier controls the second servo motor based on the torque instruction signal. The motion controller is capable of producing a synchronizing signal, which is delivered to the master and slave servo amplifiers so that the first and second servo motors are driven in a synchronized manner.
    • 为电动注射成型机提供驱动控制装置,其中使用螺杆将熔融树脂注入到金属模具的空腔中。 这里,通过使用例如使用带连接在一起的第一和第二伺服电动机来驱动螺杆在期望的方向上移动。 在驱动控制装置中,运动控制器产生驱动控制信号以控制螺杆的操作。 主伺服放大器输入驱动控制信号以控制第一伺服电动机,其中检测第一伺服电动机的转子的位置并将其用作反馈值。 主伺服放大器进一步产生表示第一伺服电动机驱动的第一伺服电动机的额定输出的比率的转矩指令信号。 例如,转矩指令的频率表示电动机的转速,而幅度表示转矩的大小。 从伺服放大器根据转矩指令信号控制第二伺服电机。 运动控制器能够产生同步信号,其被传送到主和从伺服放大器,使得第一和第二伺服电机以同步的方式被驱动。