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公开(公告)号：US20130095199A1
公开(公告)日：2013-04-18
申请号：US13549431
申请日：2012-07-14
IPC分类号： B29C45/77
CPC分类号： B29C45/50 , B29C2045/5096 , B29C2945/76852
摘要： During metering, a screw is retreated to a preset metering completion position while it is being forwardly rotated. Pilot injection is performed such that the screw is reversely rotated and advanced so that a resin pressure reaches a predetermined compression pressure, during a time period between the end of the metering and the start of injection. The screw reverse rotation is continued before the screw advance is started for the pilot injection. In this way, a check valve can be closed at a relatively low pressure such that precision metering can be achieved.
摘要翻译： 在计量期间，当正向旋转时，螺钉被退回到预设的测量完成位置。 执行先导注射，使得在计量结束和注射开始之间的时间段期间，螺杆被反向旋转和前进，使得树脂压力达到预定的压缩压力。 在螺杆前进开始前进行螺杆反转以进行引燃喷射。 以这种方式，可以在相对低的压力下关闭止回阀，从而可以实现精密计量。
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2.发明授权公开(公告)号：US07595012B2
公开(公告)日：2009-09-29
申请号：US11937653
申请日：2007-11-09
IPC分类号： B29C45/52
CPC分类号： B29C45/766 , B29C45/52 , B29C2945/76006 , B29C2945/76013 , B29C2945/7602 , B29C2945/76076 , B29C2945/76096 , B29C2945/76187 , B29C2945/76193 , B29C2945/76367 , B29C2945/76374 , B29C2945/76578 , B29C2945/76665 , B29C2945/76672 , B29C2945/76846 , B29C2945/76852 , B29C2945/76913 , B29C2945/76936
摘要： In an injection molding machine capable of appropriately adjusting a control condition for a reverse rotation of a screw and a method for adjusting the control condition, molding is repeated with an amount of a reverse rotation of the screw performed after completion of metering and before injection to be varied in each molding cycle. In injection, resin flows backward until a check valve becomes closed. A peak value of a rotational force causing reverse rotation of the screw by the back flow of resin and other physical amounts are detected as indices of resin back-flow amount. An evaluation value of the control condition is obtained by inputting the indices of resin back-flow amount, metering time, etc. into an evaluation function. The value of screw reverse rotation amount with which the highest evaluation value is obtained is set for the screw reverse rotation.
摘要翻译： 在能够适当地调节螺杆的反向旋转的控制条件的注射成型机以及调整控制条件的方法中，在计量结束后，在注射前以螺杆的反向旋转量重复成型 在每个成型周期中都有所不同。 在注射时，树脂向后流动直到止回阀关闭。 作为树脂回流量的指标，检测由树脂的反向流动引起的螺杆的反转的旋转力的峰值和其他物理量。 通过将树脂回流量，计量时间等的指标输入到评价功能中来获得控制条件的评价值。 螺杆反向旋转设定获得最高评价值的螺杆反转量的值。
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公开(公告)号：US09339961B2
公开(公告)日：2016-05-17
申请号：US13549431
申请日：2012-07-14
IPC分类号： B29C45/50
CPC分类号： B29C45/50 , B29C2045/5096 , B29C2945/76852
摘要： During metering, a screw is retreated to a preset metering completion position while it is being forwardly rotated. Pilot injection is performed such that the screw is reversely rotated and advanced so that a resin pressure reaches a predetermined compression pressure, during a time period between the end of the metering and the start of injection. The screw reverse rotation is continued before the screw advance is started for the pilot injection. In this way, a check valve can be closed at a relatively low pressure such that precision metering can be achieved.
摘要翻译： 在计量期间，当正向旋转时，螺钉被退回到预设的测量完成位置。 执行先导注射，使得在计量结束和注射开始之间的时间段期间，螺杆被反向旋转和前进，使得树脂压力达到预定的压缩压力。 在螺杆前进开始前进行螺杆反转以进行引燃喷射。 以这种方式，可以在相对低的压力下关闭止回阀，从而可以实现精密计量。
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4.发明申请公开(公告)号：US20080150181A1
公开(公告)日：2008-06-26
申请号：US11937653
申请日：2007-11-09
IPC分类号： B29C45/18
CPC分类号： B29C45/766 , B29C45/52 , B29C2945/76006 , B29C2945/76013 , B29C2945/7602 , B29C2945/76076 , B29C2945/76096 , B29C2945/76187 , B29C2945/76193 , B29C2945/76367 , B29C2945/76374 , B29C2945/76578 , B29C2945/76665 , B29C2945/76672 , B29C2945/76846 , B29C2945/76852 , B29C2945/76913 , B29C2945/76936
摘要： An injection molding machine capable of appropriately adjusting a control condition for a reverse rotation of a screw and a method for adjusting the control condition. Molding is repeated with an amount of a reverse rotation of the screw performed after completion of metering and before injection to be varied in each molding cycle. In injection, resin flows backward until a check valve becomes closed. A peak value of a rotational force causing reverse rotation of the screw by the back flow of resin and other physical amounts are detected as indices of resin back-flow amount. An evaluation value of the control condition is obtained by inputting the indices of resin back-flow amount, metering time, etc. into an evaluation function. The value of screw reverse rotation amount with which the highest evaluation value is obtained is set for the screw reverse rotation.
摘要翻译： 一种能够适当地调整螺杆的反向旋转的控制条件的注射成型机以及调整控制条件的方法。 在计量完成之后并且在注射之前进行的螺杆的反向旋转量在每个成型周期中变化，重复成型。 在注射时，树脂向后流动直到止回阀关闭。 作为树脂回流量的指标，检测由树脂的反向流动引起的螺杆的反转的旋转力的峰值和其他物理量。 通过将树脂回流量，计量时间等的指标输入到评价功能中来获得控制条件的评价值。 螺杆反向旋转设定获得最高评价值的螺杆反转量的值。
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