Process of making a plastic part with a retrofitted screw machine
    2.
    发明授权
    Process of making a plastic part with a retrofitted screw machine 失效
    使用改装螺丝机制造塑料部件的工艺

    公开(公告)号:US5932154A

    公开(公告)日:1999-08-03

    申请号:US858955

    申请日:1997-05-20

    Abstract: The invention includes retrofitting a plasticating machine for the working and forcing of plastic material into a moldor die, the machine including an elongated housing having a first or proximal end and a second or distal end, and elongated screw shaft with a screw flight therearound. The screw shaft is rotatably supported in the elongated housing, for the working of plastic between the screw shaft and the elongated housing with at least one delivery conduit generally longitudinally arranged through the screw shaft, from a location proximal to the distal tip end of the screw. To accomplish such delivery, the screw shaft is replaced with a corresponding screw shaft with a bore extending through the distal tip end thereof, or the existing screw shaft is machined to have such a bore extend therethrough, from location proximal to the distal end out through the distal tip end. The bore in one embodiment may extend completely through the screw shaft, from its proximalmost end to its distalmost tip end. The conduit may be arranged to be movable in the bore, with respect to the screw shaft to permit delivery of a medium through the screw shaft to any plastic being worked by the machine. The medium may be any single or combination of components selected from the group comprising vapor, liquid, gas, powder or solid, to control the machine or treat any plastic being worked therefrom.

    Abstract translation: 本发明包括改装塑料机,用于将塑料材料加工成模制模具,该机器包括具有第一或近端和第二或远端的细长壳体,以及具有螺旋飞行的细长螺杆轴。 螺杆轴可旋转地支撑在细长壳体中,用于在螺杆轴和细长壳体之间加工塑料,其中至少一个输送管道通常沿纵向布置通过螺杆轴从螺钉的远端尖端的位置 。 为了实现这种传送,螺杆轴被替换为具有延伸穿过其远端尖端的孔的对应的螺杆轴,或者现有的螺杆轴被加工成具有这样的孔,从靠近远端的位置延伸通过 远端尖端。 一个实施例中的孔可以从其最近端到其最远端的尖端完全穿过螺杆轴。 导管可以布置成相对于螺杆轴在孔中是可移动的,以允许介质通过螺杆轴传送到由机器加工的任何塑料。 介质可以是选自蒸气,液体,气体,粉末或固体的组分的任何单一组合或组合,以控制机器或处理从其处理的任何塑料。

    Method for making multicolored foam and product thereof
    4.
    发明授权
    Method for making multicolored foam and product thereof 失效
    制造多彩泡沫的方法及其制品

    公开(公告)号:US5190706A

    公开(公告)日:1993-03-02

    申请号:US513974

    申请日:1990-04-24

    Inventor: Dennis A. Knaus

    Abstract: A method and apparatus for the preparation of multicolor, multidensity and/or multithermoplastic foam and products composed thereof. Heat-plastified foamable gels of a thermoplastic resin or resins containing blowing agents are combined and extruded simultaneously through the same orifice of a die and expanded into a foam. The color, density and/or thermoplastic resin of the secondary foamed gel or gels can form a multitude of patterns or shapes that include waves, diagonals, stripes and/or continuous coverage over the entire surface of the primary foamed gel. These patterns or shapes can be on the surface and/or within the cross-section of the primary foamed gel.

    Abstract translation: 一种用于制备多色,多密度和/或多双通道泡沫及其组成的产品的方法和装置。 将热塑性树脂的热塑性发泡性凝胶或含有发泡剂的树脂通过模具的相同孔口同时组合并挤出并膨胀成泡沫。 二次发泡凝胶或凝胶的颜色,密度和/或热塑性树脂可以形成多种图案或形状,其包括在主泡沫凝胶的整个表面上的波浪,对角线,条纹和/或连续覆盖。 这些图案或形状可以在主泡沫凝胶的表面和/或横截面内。

    Apparatus for the extraction of melt samples from a material which is
liquid at an elevated temperature, but solid at ambient temperature
    5.
    发明授权
    Apparatus for the extraction of melt samples from a material which is liquid at an elevated temperature, but solid at ambient temperature 失效
    用于从在高温下为液体但在环境温度下为固体的材料提取熔体样品的装置

    公开(公告)号:US4973239A

    公开(公告)日:1990-11-27

    申请号:US376240

    申请日:1989-07-06

    Abstract: An apparatus for the extraction of melt samples, particularly from continuously operating plastics processing plants, has a test sample mould which is connected to a melt channel via a transfer channel. There are provided a shutoff device and a device for transferring the melt into the mould. In the transfer channel there is arranged a suction piston which sucks the melt out of the melt channel into the transfer channel which in this case is opened simultaneously. In addition, there is provided a pressure piston for injecting this melt into the moulding chamber. An apparatus of particularly simple construction is created in this way and permits extraction of melt samples without the melt coming into contact with the atmosphere, no dead spaces at all being created at the same time in the melt channel during the time when no melt samples are extracted.

    Abstract translation: 用于提取熔体样品,特别是连续操作的塑料加工厂的熔体样品的设备具有通过传送通道连接到熔体通道的测试样品模具。 提供了一种切断装置和用于将熔体输送到模具中的装置。 在传送通道中设置有一个吸入活塞,其将熔体从熔体通道吸入传送通道,在这种情况下同时打开。 此外,提供了一种用于将该熔体注入到模制室中的压力活塞。 以这种方式产生特别简单结构的装置,并且允许提取熔体样品而不使熔体与大气接触,在没有熔体样品的时间期间在熔体通道中同时没有产生死空间 提取。

    Extrusion apparatus
    6.
    发明授权
    Extrusion apparatus 失效
    挤出设备

    公开(公告)号:US4850839A

    公开(公告)日:1989-07-25

    申请号:US217720

    申请日:1988-07-11

    Abstract: A disclosure relates to an apparatus for extruding and forming blanks from a rubber or polymeric material comprising a pair of hydraulic ram operated extruders having outlets connected to a common delivery conduit. A screw extruder is also connected to the conduit and a control valve controls flow between the respective extruders and conduit such that in one position of the valve one of the ram operated extruders is connected to the conduit outlet delivery of extrudate and the other extruder is connected to the screw extruder to receive a fresh charge of extrudate. A closed hydraulic circuit links the hydraulic rams of the two ram extruders whereby filling of one of the extruders causes that ram to retract and pump the hydraulic fluid therefrom to the other extruder to cause that ram to extend and thereby discharge the extrudate therein and vice versa. By feeding extrudate from the screw extruder, the hydraulic ram extruder being charged is caused to receive extrudate and the ram extruder discharging extrudate is caused to discharge extrudate. A cutter mechanism is provided at the outlet of the conduit severing the extrudate repeatedly at a rate determined by the advance/retraction of one of the hydraulic ram extruders to form blanks of substantially equal volume.

    Diverting plate
    7.
    发明授权
    Diverting plate 失效
    转盘

    公开(公告)号:US4507072A

    公开(公告)日:1985-03-26

    申请号:US436455

    申请日:1982-10-25

    CPC classification number: B29C47/74 B29C47/682 B29C47/0009

    Abstract: A diverting plate having the same external configuration as a changeable strainer in a flow line for a molten polymer. Contamination is removed by substituting the plate for a strainer.

    Abstract translation: 具有与用于熔融聚合物的流动管线中的可更换过滤器相同的外部构造的转向板。 通过将板替换为过滤器来除去污染物。

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