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公开(公告)号：US5798077A
公开(公告)日：1998-08-25
申请号：US743542
申请日：1996-11-04
申请人： Timothy W. Womer , Paul N. Colby , Harry F. White
发明人： Timothy W. Womer , Paul N. Colby , Harry F. White
CPC分类号： B29C47/6081 , B29C47/60 , B29C47/0009
摘要： A plasticating screw and method of plasticating without thermal degradation problems. Said screw having a metering section with a helical flight disposed within and cooperating with the innerwall of a heated barrel. In particular, solid resinous material is introduced to a helical valley extending between said flight. The resinous material is heated and plasticized by said apparatus while being advanced along a helical path towards an outlet opening by the rotation of said screw. The bottom surface of the helical valley in said metering section having a plurality of geometrically shaped surfaces in side-by-side relation with at least two of said shaped surfaces being sloped. During operation, the level differential between the shaped surfaces induces a continuous tumbling, variable shear and mixing action upon the molten resin as the molten resin in the metering section flows along the helical path.
摘要翻译： 一种塑化螺杆和无热降解问题的塑化方法。 所述螺杆具有设置在加热筒的内壁内并与加热筒的内壁配合的具有螺旋形飞行的计量部分。 特别地，将固体树脂材料引入到在所述飞行之间延伸的螺旋谷。 树脂材料通过所述装置被加热和塑化，同时通过所述螺杆的旋转沿着螺旋路径朝向出口开口前进。 所述计量部分中的螺旋谷的底表面具有与所述成形表面中的至少两个并排关系的多个几何形状的表面是倾斜的。 在操作期间，当计量部分中的熔融树脂沿着螺旋路径流动时，成形表面之间的水平差异引起对熔融树脂的连续翻转，可变剪切和混合作用。
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公开(公告)号：US5439633A
公开(公告)日：1995-08-08
申请号：US281230
申请日：1994-07-27
CPC分类号： B29C47/60 , B29B7/428 , B29C45/52 , B29C45/60 , B29C2045/528 , B29C47/0009
摘要： An apparatus and method for controlling thermoplastic mixing in a plastic extrusion machines used for injection molding, blow molding or other reciprocating molding process. The plastic extruder having a rotating helical screw within a cylindrical shell with an automatic shut-off and mixing valve secured to the helical screw at the downstream end of the screw. The automatic shut-off and mixing valve includes a unitary valve body with a poppet. A plurality of mixing groove pairs are arranged extending substantially longitudinally on the surface of the valve body. Select angular bores extend from the groove pairs to the poppet. The poppet is axially movable within and rotatable relative the valve body. The poppet has an axial stem extending into a longitudinal axial bore within the valve body. An elastic means is positioned on the rearward end of the poppet maintaining the valve in a normally closed position against a seating surface of the valve body when there is no rotation of the helical screw.
摘要翻译： 一种用于在用于注射成型，吹塑或其它往复模塑工艺的塑料挤出机中控制热塑性混合的装置和方法。 该塑料挤出机在圆柱形壳体内具有旋转的螺旋螺旋，其中自动关闭和混合阀固定在螺杆的下游端处的螺旋螺杆上。 自动关闭和混合阀包括具有提升阀的单体阀体。 在阀体的表面上大致纵向地设置有多个混合槽对。 选择角孔从槽对延伸到提升阀。 提升阀可在阀体内轴向移动并相对于阀体可转动。 提升阀具有延伸到阀体内的纵向轴向孔的轴向杆。 当不存在螺旋形螺杆的旋转时，弹性装置位于提升阀的后端上，将阀保持在常闭状态，抵靠阀体的阀座表面。
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公开(公告)号：US5356281A
公开(公告)日：1994-10-18
申请号：US927813
申请日：1992-08-10
申请人： Nobuhiro Katsuno , Toru Shimizu
发明人： Nobuhiro Katsuno , Toru Shimizu
CPC分类号： B29C45/60 , B29C45/23 , B29C45/52 , B29K2083/005 , F02F7/006 , Y10S425/047
摘要： A screw-type resin injection apparatus for injection molding which includes a cylinder element having a cylinder chamber for receiving resin therein, and having, at an end portion, a nozzle for injecting the resin. A screw element is arranged within the cylinder chamber in a manner allowing rotation and axial movement. A rotary drive shaft is connected to the screw element telescopically so as to be capable of transmitting a torque. The rotary drive shaft is rotatively driven by a motor. A fluid pressure cylinder unit is arranged laterally of the cylinder element in parallel relation thereto. The fluid pressure cylinder unit is rotatably engaged with the screw element to drive the screw axially. Preferably, the screw element is provided with a mixing screw portion which has a screw groove small in pitch and large in lead angle and an axial groove extending axially.
摘要翻译： 一种用于注塑的螺杆型树脂注射装置，其包括具有用于在其中容纳树脂的气缸室的气缸体，并且在端部具有用于注射树脂的喷嘴。 螺杆元件以允许旋转和轴向移动的方式设置在气缸室内。 旋转驱动轴可伸缩地连接到螺杆元件，以便能够传递扭矩。 旋转驱动轴由马达旋转驱动。 流体压力缸单元在气缸体的侧面平行地布置。 流体压力缸单元可旋转地与螺钉元件接合以轴向驱动螺杆。 优选地，螺杆元件设置有混合螺纹部分，该部分具有螺距小的螺距，并且导程角大，轴向槽轴向延伸。
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公开(公告)号：US5332383A
公开(公告)日：1994-07-26
申请号：US989539
申请日：1992-12-11
申请人： Karl Hehl
发明人： Karl Hehl
CPC分类号： B29C45/17 , B29C45/1775
摘要： An injecting unit for use in an injection molding machine comprises an arrangement for locking an axially movable plasticizing cylinder to a carrying block and for locking a feed screw to a motor for-rotating the feed screw, which is adapted to be coupled to the motor in that the feed screw is inserted into a profiled coupling section of the motor. The feed screw is axially displaceable for injecting the plastic material. The plasticizing cylinder is adapted to be locked at a stop of the carrying block by screw threads, which are provided on the plasticizing cylinder and are centered on the longitudinal axis of the cylinder, and a nut, which is screwed on the screw threads and rotatable by a drive engaging the periphery of the nut. When the plasticizing cylinder has thus been locked, the feed screw is locked to the feed screw motor. As a result, the plasticizing cylinder and the feed screw can reliably be locked and unlocked by simple arrangement, which can be automatically controlled.
摘要翻译： 用于注射成型机的注射单元包括用于将可轴向移动的塑化筒锁定到承载块并用于将进给螺钉锁定到马达以将进给螺杆旋转的装置，该进给螺杆适于联接到马达 进给螺杆插入电机的异型联接部分。 进给螺杆可以轴向移动，用于注射塑料材料。 塑化筒适于通过设置在塑化筒上并以圆柱体的纵向轴线为中心的螺纹以及拧在螺纹上并可旋转的螺母的螺纹锁定在承载块的止动件上 通过啮合螺母周边的驱动器。 当塑化筒因此被锁定时，进给螺钉被锁定到进给螺杆马达。 结果，塑化筒和进料螺杆可以通过简单的布置可靠地被锁定和解锁，这可以被自动控制。
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公开(公告)号：US5244605A
公开(公告)日：1993-09-14
申请号：US714419
申请日：1991-06-12
申请人： Toshikazu Umemura , Toshiaki Asoh
发明人： Toshikazu Umemura , Toshiaki Asoh
摘要： In a process for producing a halogenated polycarbonate molded article from a powder or pellets of a halogenated polycarbonate resin or composition thereof by means of injection molding using an injection molding machine, the improvement wherein the injection molding machine comprises a cylinder whose inner circumferential wall being made of a corrosion-resistant and abrasion-resistant alloy comprising alloy component (1), (2), or (3) given below, and a screw part made of a steel having a metal coating formed by hard chromium plating or hard nickel plating or made of SUS420, SUS440, Hastelloy C, or a steel comprising alloy component (4) given below:______________________________________ Alloy component (1): C: 0.5-2 wt % Si: 1-5 wt % B: 0.5-5 wt % Ni: 10-25 wt % Cr: 20-35 wt % W: 10-25 wt % Cu: 0.5 -5 wt % Remainder: Co and unavoidable impurities, Alloy component (2): Si: 0.2-4 wt % Mn: 0.05-2 wt % Cr: 5-15 wt % B: 2-4 wt % Fe: 0-2 wt % Ni: 0-2 wt % Remainder: Co and unavoidable impurities, Alloy component (3): Si: 2-10 wt % Mn: 0.2-2 wt % Cr: 5-10 wt % Co: 5-40 wt % B: 2-4 wt % Fe: 0-20 wt % Remainder: Ni and unavoidable impurities, Alloy component (4): C: 0.5-2 wt % Cr: 10-25 wt % Mo: 1.5-2.5 wt % V: 0.5-2 wt % Remainder: Fe and unaviodable impurities. ______________________________________
摘要翻译： 在通过使用注射成型机的注射成型从卤代聚碳酸酯树脂的粉末或颗粒或其组合物制造卤代聚碳酸酯模塑制品的方法中，注射成型机包括其内周壁制成的圆筒 包含以下给出的合金成分（1），（2）或（3）的耐腐蚀和耐磨合金，以及由具有通过硬铬镀层或硬质镍镀层形成的金属涂层的钢制成的螺纹部，或 由SUS420，SUS440，哈氏合金C或以下给出的合金成分（4）的钢：合金成分（1）：-C：0.5〜2重量％-Si：1-5重量％-B：0.5-5 重量％-Ni：10-25重量％-Cr：20-35重量％-W：10-25重量％-Cu：0.5-5重量％-Remainder：Co和不可避免的杂质， - 合金成分（2）： - Si：0.2-4重量％-Mn：0.05-2重量％-Cr：5-15重量％-B：2-4重量％-Fe：0-2重量％-Ni：0-2重量％-Remainder： 钴和不可避免的杂质，合金成分 （3）：-Si：2-10重量％-Mn：0.2-2重量％-Cr：5-10重量％-Co：5-40重量％-B：2-4重量％-Fe：0-20 重量％-Remainder：Ni和不可避免的杂质， - 合金成分（4）：-C：0.5-2重量％-Cr：10-25重量％-Mo：1.5-2.5重量％-V：0.5-2重量％ 余量：铁和不可避免的杂质。 -
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公开(公告)号：US5240398A
公开(公告)日：1993-08-31
申请号：US937330
申请日：1992-08-31
CPC分类号： B29C45/52
摘要： A screw head is composed of a cone portion, a tapered portion formed behind the cone portion and a narrow portion formed behind the tapered portion. A counter-flow stopper ring is provided around the narrow portion so that an annular resin passage is formed between the counter-flow stopper ring and the narrow portion. The tapered portion of the screw head has a plurality of circumferentially spaced grooves. The sectional area of each groove decreases from the inner circumference toward the outer circumference of the tapered portion. The grooves are so formed that the resin flowing through the grooves creates a force which pushes the counter-flow stopper ring backward, the ring being moved forward by forward flow of resin caused during backward movement of the screw. Thus, the grooves help maintain a gap between the counter-flow stopper ring and the screw head.
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87.发明授权
公开(公告)号：US5114658A
公开(公告)日：1992-05-19
申请号：US613598
申请日：1990-11-15
申请人： James D. Katsaros
发明人： James D. Katsaros
CPC分类号： B29C45/60 , B29C45/0001
摘要： Melt fabrication, without precompounding, of a composition comprising a thermoplastic resin, an acid containing ethylene copolymer and a polymeric grafting agent, is provided by (1) bringing the molten components of the composition together for the first time, (2) intermittently shearing the components, preferably in an injection molding machine or a blow molding machine having a screw with a shearing section, and (3) intermittently fabricating in one-step the sheared molten composition into articles of pre-determined shape. The thermoplastic resin is less than 50 volume percent and is at least one continuous phase in the composition. The process is improved by increasing back pressure on the screw used in the injection molding machine, to extend the screw rotation and shear time.
摘要翻译： 通过（1）将组合物的熔融组分首次混合在一起，提供包含热塑性树脂，含酸乙烯共聚物和聚合物接枝剂的组合物的熔融制造，无需预混合，（2）间歇地剪切 组分，优选在具有剪切部分的螺杆的注射成型机或吹塑机中，以及（3）将剪切的熔融组合物一步间歇地制造成预定形状的制品。 热塑性树脂的含量小于50体积％，并且在组合物中至少有一个连续相。 通过增加注射成型机中使用的螺杆的背压来改善该过程，以延长螺杆的旋转和剪切时间。
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公开(公告)号：US5073313A
公开(公告)日：1991-12-17
申请号：US557236
申请日：1990-07-25
CPC分类号： B29C47/0845 , B29C45/60 , B29C45/62 , B29C47/0011
摘要： A process for producing a polycarbonate molded article having a low dust level from a polycarbonate resin in the form of a powder or pellets by injection molding using an injection molding machine. The injection molding machine includes a cylinder whose inner circumferential wall is made of a corrosion- and abrasion-resistant alloy from alloy components (1), (2), or (3) given below and a screw part made of a steel having a metal coating formed of hard chromium plating or hard nickel plating or formed of titanium carbide or tungsten carbide, or is made of SUS420, SUS440, Hastelloy C, or a steel of alloy component (4) given below:Alloy components (1):C: 0.5-1.5 wt%Si: 1.0-2.0 wt%B: 0.5-2.5 wt%Ni: 10.0-20.0 wt%Cr: 20.0-30.0 wt%W: 10.0-20.0 wt%Cu: 0.5-2.0 wt%Remainder: Co and unavoidable impurities,Alloy components (2):Ni: 0.0-2.0 wt%Cr: 5.0-15.0 wt%Fe: 0.0-1.0 wt%Mn: 0.1-2.0 wt%Si: 0.2-4.0 wt%B: 2.0-4.0 wt%Remainder: Co and unavoidable impurities,Alloy components (3):Cr: 5.0-10.0 wt%Co: 5.0-40.0 wt%Fe: 0.0-10.1 wt%Mn: 0.2-2.0 wt%Si: 2.0-10.0 wt%B: 2.0-4.0 wt%Reaminder: Ni and unavoidable impurities,Alloy components (4):C: 0.5-1.5 wt%Cr: 10.0-20.0 wt%Mo: 1.5-2.5 wt%V: 0.5-1.5 wt%Remainder: Fe and unavoidable impurities.
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89.发明授权
公开(公告)号：US4846652A
公开(公告)日：1989-07-11
申请号：US258713
申请日：1988-10-17
申请人： Karl Hehl
发明人： Karl Hehl
CPC分类号： B29C45/17 , B29C45/1775
摘要： An apparatus for locking a horizontal plasticizing cylinder to the carrying block of the injecting unit of an injection molding machine having two cylinder-locking sliders which are disposed on opposite sides of the axis of said cylinder and are radially movable by means of hydraulic cylinders. In a locking position, the sliders extend in diametrically opposite recesses of the plasticizing cylinder. A shaft for driving the feed screw of the plasticizing unit has a coupling section which is formed with a radial guide groove, in which a screw-locking slider is radially displaceably mounted, the screw-locking slider being non-rotatably connected to the shaft. A coupling bridge is secured to the upper one of the cylinder-locking sliders. When the feed screw is in a desired angular position said coupling bridge is coupled to the screw-locking slider so that one cylinder-locking slider and the screw-locking slider are simultaneously moved to their locking positions.
摘要翻译： 一种用于将水平塑化筒锁定到具有两个气缸锁定滑块的注射成型机的注入单元的承载块的装置，该两个气缸锁定滑块设置在所述气缸的轴线的相对侧上并且可通过液压缸径向移动。 在锁定位置，滑块在塑化筒的径向相对的凹部中延伸。 用于驱动塑化单元的进给螺杆的轴具有联接部，该联接部形成有径向引导槽，螺旋锁定滑块可径向移位地安装在其中，螺钉锁定滑块不可旋转地连接到轴。 联接桥固定到气缸锁定滑块的上部。 当进给螺杆处于所需的角度位置时，所述联接桥连接到螺钉锁定滑块，使得一个气缸锁定滑块和螺钉锁定滑块同时移动到其锁定位置。
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90.发明授权
公开(公告)号：US4648827A
公开(公告)日：1987-03-10
申请号：US653877
申请日：1984-09-21
CPC分类号： B29C45/60 , B29C47/369 , B29C47/6018
摘要： A screw plastifying and conveying device includes a screw (5) which has a pull-in zone (I) of constant pitch volume (V.sub.0), a first compression zone (II), and adjacent thereto, i.e. in the injection side, a second compression zone (III). The compression ratio (V.sub.1 :V.sub.0) of the second compression zone (III) is between 1:1.0 and 1.2, while that of the first compression zone is between 1:1.6 and 1:4. This makes it possible, by underdosing, to reduce the melt volume in the second compression zone, thereby achieving stable conveying action over a wide operating range. Molded parts with minimal internal tensions and e.g. also molded parts of glass-clear material with unobjectionable optical properties can thus be produced.
摘要翻译： 螺杆塑化和输送装置包括螺杆（5），其具有恒定节距体积（V0）的拉入区域（I），第一压缩区域（II），并且与其相邻，即在注射侧，第二 压缩区（III）。 第二压缩区域（III）的压缩比（V1：V0）为1:1.0〜1.2，第一压缩区域的压缩比为1:1.6〜1:4。 这使得可能通过减量来减少第二压缩区域中的熔体体积，从而在宽的工作范围内实现稳定的输送作用。 具有最小内部张力的成型部件，例如 因此，也可以制造具有无色光学特性的玻璃透明材料的成型部件。
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