Extruder seal
    71.
    发明授权
    Extruder seal 失效
    挤出机密封

    公开(公告)号:US4117549A

    公开(公告)日:1978-09-26

    申请号:US815367

    申请日:1977-07-13

    摘要: An extruder machine for processing of plastic materials, rubber or polymers in which a stationary casing is provided with a generally tubular bore having an inlet opening near one end thereof, and a discharge opening at the other end thereof. A generally cylindrical rotor is rotatably mounted in the bore of the casing. The casing is comprised of a pair of generally coaxially aligned spaced apart cylindrical members, having a length substantially longer than their diameters. A heating or a cooling fluid is passed in the spacing between the cylindrical members in a heat transfer relationship. Each pair of cylindrical members is provided with expansion/contraction joints to permit longitudinal expansion or contraction of the components with respect to one another. An annular flexible bellows seal is biasedly disposed within the spacing between the outer cylinder and the inner cylinder in a fluid tight relationship between the two to prevent leakage of cooling or heating fluid therefrom during periods of extruder operation.

    Screw extruder with an enlarged feed section
    72.
    发明授权
    Screw extruder with an enlarged feed section 失效
    螺杆挤出机具有放大的进料部分

    公开(公告)号:US4058298A

    公开(公告)日:1977-11-15

    申请号:US757045

    申请日:1977-01-05

    摘要: Disclosed is a screw extruder having an upstream feed section in which the bore and screw is of substantially larger diameter than that in a downstream melting section. The two screws are structurally separable and may be operably independent of each other. The extruder is constructed for removal of the smaller screw outwardly through the downstream end of the extruder. Various arrangements for driving the two screws are disclosed herein.

    摘要翻译: 公开了一种具有上游进料部分的螺杆挤出机,其中孔和螺杆的直径比下游熔融部分的直径大得多。 两个螺钉在结构上是可分离的并且可以彼此可操作地独立。 挤出机被构造用于通过挤出机的下游端向外移除较小的螺钉。 本文公开了用于驱动两个螺钉的各种布置。

    Self-regulating extruder
    74.
    发明授权
    Self-regulating extruder 失效
    自调节挤出机

    公开(公告)号:US3704972A

    公开(公告)日:1972-12-05

    申请号:US3704972D

    申请日:1971-05-03

    摘要: A screw-type extruder for plastic material has a cylindrical housing axially divided into two externally heated compartments provided at their upstream ends with a hopper and a venting aperture, respectively; at its downstream end each compartment terminates in a mobile housing section for adjustment of the back pressure prevailing therein and, consequently, of the flow rate of plastic mass discharged from the compartment. To equalize the two flow rates, a pair of hydraulic jacks serving to shift these mobile sections are controlled by respective regulators which respond to associated function generators and to the corresponding back pressure as measured just ahead of these mobile sections; the first function generator receives at its input the back pressure of the second compartment whereas the second function generator is adjusted to deliver a constant output dependent upon the desired flow rate at the extrusion nozzle and upon the speed of rotation of the screw.

    摘要翻译: 用于塑料材料的螺旋型挤出机具有轴向分为两个外部加热隔室的圆柱形壳体,其分别在其上游端设置有料斗和通风孔; 在其下游端,每个隔室终止于移动壳体部分中,用于调节其中的背压以及因此调节从隔室排出的塑料质量的流量。 为了均衡两个流量,用于移动这些移动部分的一对液压千斤顶由相应的调节器控制,这些调节器响应于相关联的功能发生器和在这些移动部分之前测量的对应的背压; 第一函数发生器在其输入端处接收第二隔室的背压,而第二函数发生器被调节以根据在挤出喷嘴处的期望流量和螺杆的旋转速度递送恒定的输出。

    Extruding plastic
    75.
    发明授权
    Extruding plastic 失效
    挤出塑料

    公开(公告)号:US3645659A

    公开(公告)日:1972-02-29

    申请号:US80686169

    申请日:1969-03-13

    摘要: An extruder is shown having: cooled screw in the feeder section; rotation retarding means in the barrel of the feeder section in the form of open mouth axial grooves; the vertical arrangement of the extruder with the hopper immersing the cooled portion of the screw with inlet plastic such as flakes of scrap; an extension of the screw into the hopper agitating the flakes and housing water inlet to the feeder; a drive shank at the outlet end isolated by an internal air chamber from the heated extruder; the shank cooled by an inserted cooling member; a sealing member surrounding the shank defining a restricted passage that tapers and accommodates eccentricity; the stationary walls of the surrounding member are grooved, resisting outward leakage of the plastic. These various features are shown to enable feeding of difficult materials and scrap and to achieve a compact, simple, efficient machine.

    摘要翻译: 示出挤出机具有:在进料部分中冷却的螺杆; 旋转延迟装置在进料部分的筒体中以开口轴向凹槽的形式; 挤出机与料斗的垂直布置将螺杆的冷却部分浸入诸如碎屑的入口塑料中; 将螺杆延伸到料斗中搅拌薄片并将进水口容纳在进料器中; 在出口端处的驱动柄由内部空气室从加热的挤出机隔离; 所述柄被插入的冷却构件冷却; 围绕所述柄部的密封构件,其限定锥形并适应偏心的限制通道; 周围构件的固定壁开槽,抵抗塑料外泄。 这些各种特征被示出为能够馈送困难的材料和废料并实现紧凑,简单,高效的机器。

    Mechanical screw press
    76.
    发明授权
    Mechanical screw press 失效
    机械螺丝压机

    公开(公告)号:US3574891A

    公开(公告)日:1971-04-13

    申请号:US3574891D

    申请日:1968-08-19

    摘要: A screw press has a drainage cage section connected to a smaller solid cage section which forms the discharge end. A screw having interrupted flights extends within the cage sections and has its feed end connected to a drive and its discharge end rotatably supported by the solid cage section. A die plate is mounted on the discharge end of the cage adjacent the discharge end of the screw, and a pivotable housing supports a motor-driven cutter for movement between an operable position adjacent the die plate and a retracted position which permits convenient access to the cutter and die plate.