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    Failsafe shooting pot actuator for an injection molding machine
    1.
    发明授权
    Failsafe shooting pot actuator for an injection molding machine 有权
    注射成型机的故障安全射出缸执行器

    公开(公告)号：US06276916B1

    公开(公告)日：2001-08-21

    申请号：US09342914

    申请日：1999-06-30

    申请人： Robert D. Schad ,  Robert Sicilia ,  Ronald Ing ,  Bruce Catoen ,  Robert Domodossola

    发明人： Robert D. Schad ,  Robert Sicilia ,  Ronald Ing ,  Bruce Catoen ,  Robert Domodossola

    IPC分类号： B29C4584

    CPC分类号： B29C45/84 ,  B29C2045/848

    摘要： A failsafe device, or pressure relief mechanism, for a shooting pot actuator in an injection molding machine. The shooting pot actuator has a multiple pusher rods mounted on one, or more, plates. Moving the plate holding the pusher rods depresses the shooting pot injection pistons and injects molten material into a number of mold cavities. To avoid damage to the machine from the pusher rods if an injection piston seizes, a failsafe device is used to mount the pusher rods to the plates. A shearing member is interposed, or sandwiched, between first and second apertures. Typically, the shearing member is a plate that, in normal operating conditions, blocks rearward movement of the pusher rod. However, when a predetermined shear force is applied to the shear plate, the shearing member shears and the pusher rod retracts within the channel, thereby alleviating the pressure. The failsafe device can be paired with a seizure detection system, using a laser beam, that detects piston and valve gate seizure, and provides appropriate notification or control signals.

    摘要翻译： 用于注射成型机中的射出缸致动器的故障保护装置或压力释放机构。 射击缸致动器具有安装在一个或多个板上的多个推杆。 移动保持推杆的板压下射出缸注射活塞并将熔融材料注入多个模腔中。 如果注射活塞被抓住，为了避免从推杆损坏机器，使用故障安全装置将推杆安装到板上。 剪切构件插入或夹在第一和第二孔之间。 通常，剪切构件是在正常操作条件下阻挡推杆的向后运动的板。 然而，当剪切板施加预定的剪切力时，剪切构件剪切和推杆在通道内缩回，从而减轻压力。 故障安全装置可以与使用激光束的检测系统配对，检测活塞和阀门闸，并提供适当的通知或控制信号。

    Shooting pot actuator for an injection molding machine
    2.
    发明授权
    Shooting pot actuator for an injection molding machine 有权
    注射成型机的拍摄壶执行器

    公开(公告)号：US06491509B1

    公开(公告)日：2002-12-10

    申请号：US09680977

    申请日：2000-10-06

    申请人： Robert D. Schad ,  Roberto D. Sicilia ,  Ronald Ing ,  Bruce Catoen ,  Robert Domodossola

    发明人： Robert D. Schad ,  Roberto D. Sicilia ,  Ronald Ing ,  Bruce Catoen ,  Robert Domodossola

    IPC分类号： B29C4516

    CPC分类号： B29C45/53 ,  B29C45/02 ,  B29C45/1642 ,  B29C45/54

    摘要： A shooting pot actuator for an injection molding machine having two plates carrying pusher rods for pushing against injection plungers within the shooting pots. The plates are mounted outside the mold and the clamp unit, and the pushers extend through bores in the stationary platen of the clamp unit to reach the injection plungers. The actuator reduces the cost and complication of mold design and production, and permits simplified adjustment of the injection plunger stroke.

    摘要翻译： 一种用于注射成型机的射出缸致动器，具有两个承载推杆的板，用于推动射出缸内的注射柱塞。 板被安装在模具和夹具单元外部，并且推动器延伸穿过夹具单元的固定压板中的孔以到达注射柱塞。 执行器降低了模具设计和生产的成本和复杂性，并且允许简化的注射柱塞行程的调整。

    Sprue bar assembly for use in a stack mold
    6.
    发明授权
    Sprue bar assembly for use in a stack mold 有权
    用于堆叠模具的浇道杆组件

    公开(公告)号：US5968562A

    公开(公告)日：1999-10-19

    申请号：US141588

    申请日：1998-08-28

    申请人： Robert D. Schad ,  Bruce Catoen ,  Zbigniew Romanski ,  Harold Godwin

    发明人： Robert D. Schad ,  Bruce Catoen ,  Zbigniew Romanski ,  Harold Godwin

    IPC分类号： B29C45/12 ,  B29C45/32

    CPC分类号： B29C45/12 ,  B29C45/322

    摘要： A sprue bar assembly for a melt transfer system for stack molds comprises a sprue bar and a sprue bar sleeve, a sprue bar and drool restrictor and sleeve or a sprue bar and drool restrictor. For the assemblies with the sleeve, when the stack mold is opened, the sprue bar slides inside the sprue bar sleeve which captures any leakage therefrom. When the mold is closed, the sprue bar sweeps captured leakage out of the sleeve to an area outside the mold. As the busing at the end of the sprue bar can contact the nozzle of the injection machine at a point very close to the edge of the fixed platen, the resulting minimum length of the sprue bar is reduced, reducing pressure losses through the sprue bar and reducing the cost of the sprue bar. The sprue bar sleeve can be fabricated from an insulating material to enhance the thermal characteristics of the sprue bar assembly and a scraper can be provided on the sprue bar to improve removal of captured material from the sprue bar sleeve. If a drool restrictor is provided within the bushing, the amount of drool from the sprue bar when the bushing is not in engagement with the nozzle of the injection machine can also be reduced and, in some circumstances, can eliminate the need for the sleeve.

    摘要翻译： 用于堆叠模具的熔体传输系统的浇道棒组件包括浇道棒和浇道棒套筒，浇道棒和浇口限流器以及套管或浇道棒和浇口限流器。 对于具有套筒的组件，当堆叠模具打开时，浇道棒在浇道杆套筒内滑动，从而捕获任何泄漏。 当模具关闭时，浇道将捕获的泄漏物从套筒中扫出到模具外部的区域。 由于浇注棒端部的冲击可以在非常接近固定压板边缘的点处接触注塑机的喷嘴，导致浇注棒的最小长度减小，从而降低通过浇注棒的压力损失和 降低浇道条的成本。 浇道棒套筒可以由绝缘材料制成，以增强浇道棒组件的热特性，并且可以在浇道棒上设置刮刀，以改善从浇道棒套筒中取出捕获的材料。 如果在套管内设置流出口限流器，则也可以减少当衬套不与注射机的喷嘴接合时来自浇道棒的流出量，并且在一些情况下可以消除对套筒的需要。

    Gripper bushing assembly for an apparatus for making plastic articles
    8.
    发明授权
    Gripper bushing assembly for an apparatus for making plastic articles 失效
    用于制造塑料制品的装置的刮板布置装置

    公开(公告)号：US5129817A

    公开(公告)日：1992-07-14

    申请号：US667680

    申请日：1991-03-11

    申请人： Ronald Ing ,  Robert D. Schad

    发明人： Ronald Ing ,  Robert D. Schad

    IPC分类号： B29C45/00 ,  B29C45/17 ,  B29C45/67 ,  B30B1/32

    CPC分类号： B29C45/6707 ,  B29C45/67 ,  B30B1/323

    摘要： The present invention relates to improved gripper bushing assemblies for use with injection molds, molding machines and other devices. In a first embodiment, the gripper bushing assemblies include an elongated flexible gripping sleeve positioned about a column member such as a tiebar. The sleeve is secured to a member such as a moving platen and is used to clamp the platen to the tiebar in a desired location. The gripper bushing assemblies further include one or more spacers intermediate the sleeve and the platen. The spacers engage the sleeve via a mechanical interlock. The sleeve and spacer(s) are capable of accommodating tiebar stretching which may occur as a result of clamping forces being applied to the mold via the platen. In a second embodiment, the spacer(s) are omitted and the gripping sleeve has a male thread which engages a female thread on the platen.

    Friction clamp for injection molding machine
    9.
    发明授权
    Friction clamp for injection molding machine 失效
    注塑机用摩擦夹具

    公开(公告)号：US5133655A

    公开(公告)日：1992-07-28

    申请号：US637814

    申请日：1991-01-07

    申请人： Robert D. Schad ,  Victor Silaghi ,  Ronald Ing

    发明人： Robert D. Schad ,  Victor Silaghi ,  Ronald Ing

    IPC分类号： B22D17/26 ,  B29C45/67 ,  B29C45/68 ,  B29C45/76

    CPC分类号： B29C45/6714 ,  B29C45/6707

    摘要： A friction clamp assembly for securing a mold of an injection molding machine in a closed position includes a column rigidly secured to a moving platen carrying a mold half and a gripper bush assembly for frictionally engaging and locking the column in a desired position. The clamp assembly further includes a clamp piston for clamping the moving platen in a mold closed position. The clamp assembly transmits a clamping force to portions of a moving platen other than end portions via the column so that platen parallelism is maintained during closing, injection and hold pressure portions of a molding cycle while platen bending is substantially avoided.

    摘要翻译： 用于将注射成型机的模具固定在闭合位置的摩擦夹具组件包括刚性地固定到移动的压板上的柱，该移动压板承载着半模和夹持衬套组件，用于摩擦地接合并将柱锁定在期望的位置。 夹具组件还包括用于将移动的压板夹持在模具关闭位置的夹紧活塞。 夹具组件经由柱将夹紧力传递到除了端部之外的移动压板的部分，使得在基本避免压板弯曲的同时在模制循环的关闭，注入和保持压力部分期间维持压板平行度。

    INJECTION UNIT WITH PISTON POSITION MEASUREMENT SYSTEM
    10.
    发明申请
    INJECTION UNIT WITH PISTON POSITION MEASUREMENT SYSTEM 有权
    带活塞位置测量系统的注射单元

    公开(公告)号：US20130108725A1

    公开(公告)日：2013-05-02

    申请号：US13698352

    申请日：2011-05-17

    申请人： Robert D. Schad ,  Carsten Link ,  Stephen Mracek

    发明人： Robert D. Schad ,  Carsten Link ,  Stephen Mracek

    IPC分类号： B29C45/80 ,  G01B21/16

    CPC分类号： B29C45/80 ,  B29C45/50 ,  B29C45/76 ,  B29C2945/76096 ,  B29C2945/76187 ,  G01B21/16

    摘要： An injection unit includes a cylinder casing comprising an inner cylindrical surface extending along an axis, and a piston housed in the casing and translatable along the axis between an advanced and a retracted position. The piston includes a piston radial surface in facing relation to the inner cylindrical surface, and the piston radial surface has a measurement detection feature. A probe is fixed relative to the cylinder casing, the probe communicating with the measurement detection feature when the piston is in and moving between the advanced and retracted positions to measure the translation of the piston.

    摘要翻译： 注射单元包括气缸壳体，其包括沿轴线延伸的内圆柱形表面，以及容纳在壳体中的活塞，并且可沿着轴线在先进位置和缩回位置之间平移。 活塞包括与内圆柱形表面相对的活塞径向表面，并且活塞径向表面具有测量检测特征。 探头相对于气缸壳体固定，当活塞进入并在先进位置和缩回位置之间移动时，探头与测量检测特征相通以测量活塞的平移。