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    • 7. 发明授权
    • Clamping machine
    • 夹紧机
    • US07824167B2
    • 2010-11-02
    • US11152767
    • 2005-06-15
    • Makoto TsujiHiroshi YokoyamaShinya Itani
    • Makoto TsujiHiroshi YokoyamaShinya Itani
    • B29C45/67
    • B29C45/1751B29C45/6728
    • A new clamping machine is disclosed, which can perform a straight-hydraulic mold clamping and a tie-bar drawing-out operation in a reduced working space, and enables a shortened mold exchanging time, by effecting retraction of a movable die plate and a tie-bar drawing-out operation simultaneously. In order to draw out tie bars 18 from a fixed die plate 10 only when molds are exchanged, annular pistons 36, which construct mold clamping cylinders in the fixed die plate, are provided. Abutting each piston, a pair of half nuts 48A, 48B are arranged and driven to engage with an engagement portion 18A provided at one end of each tie bar on the side of the fixed die plate, usually, other than during the drawing out operation. A relative position of each tie bar to the half nuts is set to be able to engage with the half nuts when a right end face of the tie bar contacts with the stopper plate 46. When pressure for clamping molds is increased during such engagement, the annular pistons are driven to transmit a force, for performing an initial operation, to the tie bars.
    • 公开了一种新的夹紧机,其可以在减少的工作空间中进行直线液压模具夹紧和拉杆拉出操作,并且通过实现可移动模板和系带的缩回来缩短模具更换时间 - 栏拉出操作同时。 为了仅在模具更换时从固定模板10拉出连接杆18,在固定模板中构成模具夹紧缸的环形活塞36。 抵靠每个活塞,一对半螺母48A,48B布置并被驱动以与设置在固定模板侧面的每个连接杆的一端处的接合部分18A接合,通常除了在拉出操作期间。 每个连接杆与半螺母的相对位置被设定为能够在连接杆的右端面与止动板46接触时与半螺母接合。当在这种接合期间夹紧模具的压力增加时, 驱动环形活塞以向连杆传递用于执行初始操作的力。
    • 9. 发明授权
    • Method and apparatus for electric clamping
    • 电动夹紧方法和装置
    • US07393481B2
    • 2008-07-01
    • US11399393
    • 2006-04-07
    • Yuji AbeShinya Itani
    • Yuji AbeShinya Itani
    • B29C45/80B22D17/32
    • B22D17/26B29C45/76B29C45/7653B29C45/84B29C2945/76066B29C2945/76083B29C2945/76254B29C2945/76387B29C2945/76575B29C2945/76732B29C2945/76866B29C2945/76869
    • Disclosed is a method for electric clamping, which performs a clamping process in parallel with a core-drawing-in process, avoiding damages of molds and core mechanisms and enabling secure clamping. The method comprises the steps of: setting a check point, for judging safety of the clamping process in advance, in a position that is nearer to the operational start position by a predetermined distance in the mold opening direction than a position of the movable mold when the core-drawing-in process is expected to be completed, wherein the core-drawing-in process and the clamping process proceed in parallel with each other in a straight course for reciprocating a movable mold; activating a core system and a servo-motor to start an operation to draw a core into a cavity in parallel with an operation to move the movable mold in the mold closing direction; detecting whether or not the movable mold reaches the check point; judging whether or not the core reaches the position in which the core is fully drawn into the cavity at a point of time at which the movable mold reaches the check point, and confirming the completion of the core-drawing-in process. Thereafter, the clamping process of the molds is further continued if confirming that the core-drawing-in process is already completed.
    • 公开了一种用于电动夹紧的方法,其与芯插入工艺并行地执行夹紧过程,避免模具和芯机构的损坏并且实现可靠的夹紧。 该方法包括以下步骤:设置检查点,用于在紧靠操作开始位置的位置上将夹紧过程的安全性判定为在开模方向上比预定距离在可移动模具的位置处的位置 预计可以完成核心拉入过程,其中芯线拉入工艺和夹紧过程在用于使可移动模具往复运动的直线过程中相互并行地进行; 激活核心系统和伺服电动机以开始操作以将芯体与将模具沿闭模方向移动的操作平行地将芯体拉入腔体; 检测可移动模具是否到达检查点; 判断在可动模到达检查点的时刻,芯到达芯完全拉入空腔的位置,并确认芯插入过程的完成。 此后,如果核心插入过程已经完成,则进一步继续模具的夹紧过程。
    • 10. 发明授权
    • Mold clamping apparatus, molding machine and mold clamping method
    • 模具夹紧装置,成型机和模具夹紧方法
    • US07288221B2
    • 2007-10-30
    • US11087771
    • 2005-03-24
    • Makoto TsujiHiroshi YokoyamaShinya Itani
    • Makoto TsujiHiroshi YokoyamaShinya Itani
    • B29C45/80B22D17/26
    • B29C45/6728B29C45/76B29C2045/6757B29C2945/76083B29C2945/76096B29C2945/76224B29C2945/76234B29C2945/76568B29C2945/76712
    • To provide a mold clamping apparatus that a new actuator is not necessary for a mold thickness adjustment and that the mold thickness adjustment can be performed at low cost. A mold clamping apparatus has a tie bar having a piston and a coupled groove, a cylinder for mold clamping that has the piston of the tie bar built in and that pressured driving liquid for generating mold clamping force is supplied, a half nut coupled with the tie bar releasably by meshing with the coupled groove, a position sensor detecting a position of a moving direction of the tie bar, a direction change valve changing a supply of the driving liquid between a first cylinder chamber and a second cylinder chamber, and a control apparatus positioning a position of the tie bar at a position that the half nut and the coupled groove are able to be meshed by controlling the direction change valve in response to the position of the tie bar detected by the position sensor.
    • 为了提供一种用于模具厚度调节不需要新的致动器并且可以以低成本执行模具厚度调整的模具夹紧装置。 一种模具夹紧装置,具有活塞和连接槽的连接杆,用于模具夹紧的气缸,其具有内置的连接杆的活塞,并且供应用于产生合模力的加压驱动液体, 通过与所述联接槽啮合可释放地连接杆,检测所述连杆的移动方向的位置的位置传感器,改变所述驱动液体在第一缸室和第二缸室之间的供应的方向转换阀,以及控制 设备将所述连杆的位置定位在所述半螺母和所述联接槽能够通过响应于由所述位置传感器检测到的所述连杆的位置的控制来控制所述方向转换阀而啮合的位置。