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561 条记录 (耗时 0.018 秒)

    Apparatus for collecting hydraulic leakage fluid
    31.
    发明授权
    Apparatus for collecting hydraulic leakage fluid 失效
    液压泄漏液收集装置

    公开(公告)号：US4945724A

    公开(公告)日：1990-08-07

    申请号：US301980

    申请日：1989-01-26

    申请人： James I. O'Neal

    发明人： James I. O'Neal

    IPC分类号： F16J15/00

    CPC分类号： F16J15/004

    摘要： Hydraulic fluid leakage collection apparatus that includes an annular collection chamber that is carried in a cylindrical member within which a piston member is movable. A seal and wiper are carried by the clamp cylinder of an injection molding machine to seal the space between the clamp piston and the clamp cylinder and also to wipe from the surface of the clamp piston accumulated hydraulic fluid. Positioned adjacent the wiper ring is a drain passageway that is adapted to receive the hydraulic leakage fluid that is wiped by the wiper ring from the piston. A conduit extends from the drain passageway to an air operated vacuum pump to draw the leakage hydraulic fluid from the drain passageway. A container is positioned in the conduit between the drain passageway and the vacuum pump to collect the hydraulic leakage fluid that is collected.

    摘要翻译： 液压流体泄漏收集装置，其包括环形收集室，所述环形收集室承载在活塞构件可移动的圆柱形构件中。 密封件和擦拭器由注射成型机的夹紧缸承载，以密封夹紧活塞和夹紧缸之间的空间，并从夹具活塞的表面积累的液压流体擦拭。 位于雨刷环附近的是排水通道，该排水通道适于接收由擦拭环从活塞中擦拭的液压泄漏流体。 导管从排水通道延伸到气动真空泵，以从排放通道抽出泄漏的液压流体。 容器位于排水通道和真空泵之间的管道中，以收集收集的液压泄漏流体。

    Method and apparatus for regulating mold clamping force in an injection molding machine
    32.
    发明授权
    Method and apparatus for regulating mold clamping force in an injection molding machine 失效
    用于在注射成型机中调节合模力的方法和装置

    公开(公告)号：US4942004A

    公开(公告)日：1990-07-17

    申请号：US265709

    申请日：1988-11-01

    申请人： John C. Catanzaro

    发明人： John C. Catanzaro

    IPC分类号： B22D17/26 ,  B29C33/24 ,  B29C45/67 ,  B29C45/76

    CPC分类号： B29C45/7653 ,  B29C45/67

    摘要： A method and apparatus for controlling the hydraulic pressure in an hydraulic clamping cylinder to correspond with a desired clamping force and to compensate for overshoot of the hydraulic pressure caused by time delays in operating the components in the hydraulic circuit. The control arrangement involves the sensing of the actual hydraulic pressure during the clamp force maintenance portion of a clamping cycle and comparing the actual pressure with a desired pressure to provide a correction signal to be utilized to control the operation of the hydraulic system during the next succeeding cycle so that the actual hydraulic pressure during the clamp maintenance portion of the clamping cycle during the next succeeding cycle results in a clamping force that is closer to the desired clamping force.

    Hydraulic system for a toggle-type plastic injection molding machine capable of precision coining
    35.
    发明授权
    Hydraulic system for a toggle-type plastic injection molding machine capable of precision coining 失效
    液压系统用于肘式注塑机，能够进行精密压印

    公开(公告)号：US4907960A

    公开(公告)日：1990-03-13

    申请号：US228771

    申请日：1988-08-04

    申请人： Ronald A. Hertzer

    发明人： Ronald A. Hertzer

    IPC分类号： B29C45/64 ,  B29C45/56 ,  B29C45/66 ,  B29C45/76 ,  B29C45/82

    CPC分类号： B29C45/82 ,  B29C45/561 ,  B29C2043/5808 ,  B29C2045/562 ,  B29C45/762

    摘要： An improved computer controlled hydraulic system for a conventional toggle-operated plastic injection molding machine comprising an injection assembly and a mold clamping assembly. The hydraulic system includes a first low volume pump and a second high volume pump connected between a reservoir of hydraulic fluid and a pressure and flow control manifold. The output of the pressure and flow control manifold is connected to an injection control manifold, in turn conected to and operating the instrumentalities of the injection assembly. The output of the pressure and flow control manifold is also connected to a clamping control manifold, in turn connected to and operating the cylinder of the clamping assembly. An isolation manifold is connected between the pressure and flow control manifold and the clamping control manifold. A third low volume pump is connected between the reservoir and the isolation manifold. The isolation manifold is also connected to the reservoir. When unactuated, the isolation manifold connects the output of the pressure and flow control manifold directly to the clamping control manifold and recirculates the third pump to reservoir, when the machine is to perform sequential cycles such as conventional injection molding or conventional coining. When actuated, the isolation manifold disconnects the clamping manifold from the pressure and flow control manifold and connects the third pump to the clamping control manifold, enabling the machine to perform a coining cycle with individual and simultaneous clamping and injection control, and precise and repeatable position and speed control of the coining step.

    摘要翻译： 一种改进的计算机控制液压系统，用于常规的拨动式操作塑料注射成型机，其包括注射组件和模具夹紧组件。 液压系统包括连接在液压流体储存器和压力和流量控制歧管之间的第一低容积泵和第二高容量泵。 压力和流量控制歧管的输出端连接到喷射控制歧管，反过来又指向注射组件的工具并操作。 压力和流量控制歧管的输出也连接到夹紧控制歧管，然后连接到夹紧组件的气缸并操作。 隔离歧管连接在压力和流量控制歧管和夹紧控制歧管之间。 第三个低容积泵连接在储存器和隔离歧管之间。 隔离歧管也连接到储存器。 当未致动时，隔离歧管将压力和流量控制歧管的输出直接连接到夹紧控制歧管，并且当机器执行诸如常规注射成型或常规压印的连续循环时，将第三泵再循环到储存器。 当启动时，隔离歧管将夹紧歧管与压力和流量控制歧管断开连接，并将第三个泵连接到夹紧控制歧管，使机器可以通过单独和同时的夹紧和注入控制以及精确和可重复的位置执行压印循环 和速度控制的压印步骤。

    Cutting tool wheel having a removable abrasive belt
    38.
    发明授权
    Cutting tool wheel having a removable abrasive belt 失效
    切割工具轮具有可移除的砂带

    公开(公告)号：US4823516A

    公开(公告)日：1989-04-25

    申请号：US190912

    申请日：1988-05-06

    申请人： Charles B. Matson

    发明人： Charles B. Matson

    IPC分类号： B24D9/04

    CPC分类号： B24D9/04

    摘要： A grinder has an abrasive belt removably mounted on a wheel for grinding a workpiece. The belt has its ends extend through a transverse slot in the wheel into a recess within the wheel. One end of the belt is attached to a first slider and the other end of the belt is attached to a second slider with the sliders increasing the tension on the ends of the belt through outward movement of the sliders by centrifugal force as the wheel rotates with the tension increasing as the angular velocity of the wheel increases. The sliders may move parallel to each other or along two separate radii extending from the axis of rotation of the wheel. Pivotally mounted pendulums may be employed instead of the sliders to apply tension to each end of the belt with the pendulums increasing the tension on the ends of the belt through outward movement of the pendulums by centrifugal force created by rotation of the wheel.

    Blow molding apparatus
    40.
    发明授权
    Blow molding apparatus 失效

    公开(公告)号：US4801001A

    公开(公告)日：1989-01-31

    申请号：US060805

    申请日：1987-06-12

    申请人： Joseph F. Gibbemeyer

    发明人： Joseph F. Gibbemeyer

    IPC分类号： B29C49/06 ,  B29C49/42 ,  B29C49/56 ,  B65G47/36

    CPC分类号： B29C49/4205 ,  B29C49/4215 ,  B29C2049/4294 ,  B29C2049/5806 ,  B29C2049/581 ,  B29C2049/5827 ,  B29C49/06 ,  B29C49/56

    摘要： A reheat blow molding machine has an improved article handling system that carries heated preforms by a carriage assembly from an oven to a roller chain conveyor which moves them to a blow mold from when the blown product is moved to an eject station. The motions are linear and cyclical or periodic, drive means for such intermittent motions being provided. Preforms are handled in groups of four, each one being supported by its capping ring in a locating notch on the carriage and by the finish groove in a holder notch above it when it is transferred to the conveyor. All notches are open on the side facing the oven and have self-centering features to get and keep alignment for transfer and positioning at the blow mold. The carriage which moves preforms horizontally toward the conveyor and raises them to the elevation for transfer to the holder notches of the conveyor. Transfer happens when the carriage passes underneath the conveyor whereupon the holder notches of the conveyor engage the preform grooves and sweep or wipe the preforms out of the open side of the carriage notches. The conveyor roller chain moves linearly at right angles to the carriage path and delivers correctly aligned group of preforms to a corresponding group of blow molds. The chain is on its side, i.e. with pins vertical, the holder notches are supported by chain lugs outward of the chain on a leaf spring, and sliding bearing means extend horizontally out from the chain to engage tracks which provide vertical support on the straight runs. At the blow station, the center rod passes through the stuffer cylinder rod and stuffer nose in a fluid-tight telescoping relation. At the ejection station, vertical guides provide position control over the product when the latter is pushed out of the conveyor holder notches whereby the product keeps a vertical alignment and falls away on a predetermined axis.