Method for controlling injection of electric injection molding machine
    4.
    发明授权
    Method for controlling injection of electric injection molding machine 有权
    电动注塑机注塑方法

    公开(公告)号:US07008574B2

    公开(公告)日:2006-03-07

    申请号:US10677249

    申请日:2003-10-03

    IPC分类号: B29C45/77

    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。

    Method for protecting dies in an injection molding machine
    7.
    发明授权
    Method for protecting dies in an injection molding machine 有权
    在注塑机中保护模具的方法

    公开(公告)号:US06673282B2

    公开(公告)日:2004-01-06

    申请号:US10108987

    申请日:2002-03-29

    IPC分类号: B29C4576

    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 。

    Die clamping unit and die clamping method
    8.
    发明授权
    Die clamping unit and die clamping method 有权
    模具夹紧单元和模具夹紧方法

    公开(公告)号:US07566214B2

    公开(公告)日:2009-07-28

    申请号:US11043936

    申请日:2005-01-28

    IPC分类号: B29C45/64

    摘要: Used in a method of this invention is a die clamping unit, which comprises a tie bar movably attached to a stationary platen, a halfnut positioning servomotor which advances and retreats the tie bar, a halfnut which is provided on a movable platen and fixes the movable platen and the tie bar together by engaging the tie bar, an engaging mechanism which engages the halfnut with the tie bar, a hydraulic die clamping cylinder which presses the stationary platen and the movable platen, and a control device which controls the halfnut positioning servomotor and the hydraulic cylinder. The control device drives the halfnut positioning servomotor to remove a clearance between the halfnut and an engaging groove of the tie bar before a die clamping process carried out by the hydraulic cylinder.

    摘要翻译: 在本发明的方法中使用的模具夹紧单元包括可移动地连接到固定压板的连接杆,将连杆推进和后退的半轴定位伺服电机,设置在可动压板上的半螺母,并将可动 压板和连接杆通过接合连杆而连接在一起,接合机构将螺母与连接杆接合,液压模具夹紧缸压住固定压板和可动压板,以及控制装置,其控制半螺母定位伺服电机和 液压缸。 在由液压缸执行的模具夹紧过程之前,控制装置驱动半轴定位伺服电动机以移除螺母与连杆的接合槽之间的间隙。

    Die clamping method
    9.
    发明授权
    Die clamping method 有权
    模夹方式

    公开(公告)号:US07867415B2

    公开(公告)日:2011-01-11

    申请号:US12486437

    申请日:2009-06-17

    IPC分类号: B29C45/64

    摘要: Used in a method of this invention is a die clamping unit, which comprises a tie bar movably attached to a stationary platen, a halfnut positioning servomotor which advances and retreats to the tie bar, a halfnut which is provided on a movable platen and fixes the movable platen and the tie bar together by engaging the tie bar, an engaging mechanism which engages the halfnut with the tie bar, a hydraulic die clamping cylinder which presses the stationary platen and the movable platen, and a control device which controls the halfnut positioning servomotor and the hydraulic cylinder. The control device drives the halfnut positioning servomotor to remove a clearance between the halfnut and an engaging groove of the tie bar before a die clamping process carried out by the hydraulic cylinder.

    摘要翻译: 在本发明的方法中使用的模具夹紧单元包括可移动地连接到固定压板的连接杆,前进和后退到连杆的半挂定位伺服电机,设置在可动压板上的半螺母, 活动压板和连接杆通过接合连杆而连接在一起,接合机构将螺母与连接杆接合,液压模具夹紧缸压住固定压板和可动压板,以及控制装置,其控制半螺母定位伺服电动机 和液压缸。 在由液压缸执行的模具夹紧过程之前,控制装置驱动半轴定位伺服电动机以移除螺母与连杆的接合槽之间的间隙。

    Die clamping unit and die clamping method
    10.
    发明申请
    Die clamping unit and die clamping method 有权
    模具夹紧单元和模具夹紧方法

    公开(公告)号:US20050170037A1

    公开(公告)日:2005-08-04

    申请号:US11043936

    申请日:2005-01-28

    摘要: Used in a method of this invention is a die clamping unit, which comprises a tie bar movably attached to a stationary platen, a halfnut positioning servomotor which advances and retreats the tie bar, a halfnut which is provided on a movable platen and fixes the movable platen and the tie bar together by engaging the tie bar, an engaging mechanism which engages the halfnut with the tie bar, a hydraulic die clamping cylinder which presses the stationary platen and the movable platen, and a control device which controls the halfnut positioning servomotor and the hydraulic cylinder. The control device drives the halfnut positioning servomotor to remove a clearance between the halfnut and an engaging groove of the tie bar before a die clamping process carried out by the hydraulic cylinder.

    摘要翻译: 在本发明的方法中使用的模具夹紧单元包括可移动地连接到固定压板的连接杆,将连杆推进和后退的半轴定位伺服电机,设置在可动压板上的半螺母,并将可移动 压板和连接杆通过接合连杆而连接在一起,接合机构将螺母与连接杆接合,液压模具夹紧缸压住固定压板和可动压板,以及控制装置,其控制半螺母定位伺服电机和 液压缸。 在由液压缸执行的模具夹紧过程之前,控制装置驱动半轴定位伺服电动机以移除螺母与连杆的接合槽之间的间隙。