公开(公告)号：US5961209A

公开(公告)日：1999-10-05

申请号：US873345

申请日：1997-06-11

申请人： Miodrag Kovacevic

发明人： Miodrag Kovacevic

IPC分类号： B29C45/60 ,  B29C47/60 ,  B29C47/62 ,  B29B7/14

CPC分类号： B29C47/62 ,  B29C45/60 ,  B29C47/60 ,  B29C47/6075 ,  B29C47/0009

摘要： An improved feed screw for injection molding machines has a metering section adjacent to the outlet having primary flights formed by a helical thread. The primary flights form primary channels therebetween for passage of the material. The primary channels are intersected by mixing flights formed by another helical thread having a hook shaped starting point extending from a main flight at the start of the metering section that continues in a general alignment with the primary flights. The mixing flights divide the primary channel into two secondary channels. The mixing flights include alternating oriented angular notches cut therethrough to provide passageway for the material between the two secondary channels to move in a general serpentine path.

摘要翻译： 用于注射成型机的改进的进料螺杆具有邻近出口的计量部分，其具有由螺旋形螺纹形成的主要螺纹。 主要飞行物之间形成主要通道以通过材料。 主通道与另一螺旋螺纹形成的混合螺纹相交，该螺旋螺纹具有从计量部分开始处延伸的主要飞行部分延伸的钩形起始点，该螺旋螺纹线与主要飞行机构大致对准。 混合航班将主要航道分成两个次要航道。 混合叶片包括从其切入的交替取向的角槽以提供用于两个次要通道之间的材料的通道，以在一般的蛇形路径中移动。

公开(公告)号：US5932159A

公开(公告)日：1999-08-03

申请号：US966272

申请日：1997-11-07

申请人： Chris J. Rauwendaal

发明人： Chris J. Rauwendaal

IPC分类号： B29C47/00 ,  B29C47/38 ,  B29C47/40 ,  B29C47/60 ,  B29C47/62 ,  B29C47/64 ,  B29C47/66

CPC分类号： B29C47/60 ,  B29C47/0825 ,  B29C47/0871 ,  B29C47/38 ,  B29C47/402 ,  B29C47/404 ,  B29C47/605 ,  B29C47/6075 ,  B29C47/6081 ,  B29C47/62 ,  B29C47/66 ,  B29C47/0009

摘要： A screw extruder (10), including a barrel (18) having a bore (26) which defines an inner surface (24). At least one extruder screw (28) is positioned within the bore (26), each screw (28) further including a central shaft (34) and at least one screw flight (30). Each screw flight (30) further includes a front pushing face (36) and a rear face (38). The profile (40) of each front pushing face (36) acts with the inner surface (24) of the barrel (18) to form a progressively narrowing passage (46) through which material is forced into multiple regions of high elongational and shear stress (48) which act to break down agglomerates of material and thus dispersively mix the material.Also presented is a screw extruder (100) having a single screw (28) which includes dispersion disks (102) which are rotationally offset from one another and whose design is not constrained by interaction with a second disk, which provides improved distributive and dispersive mixing.Also presented is a method of extruding material using a screw extruder (10) having pushing face (36) profiles (40) which form progressively narrowing passages (46) in conjunction with the barrel (18) inner surfaces (24) to provide improved dispersive mixing.

摘要翻译： 一种螺杆挤出机（10），包括具有限定内表面（24）的孔（26）的筒体（18）。 至少一个挤出机螺杆（28）定位在孔（26）内，每个螺钉（28）还包括中心轴（34）和至少一个螺旋飞行（30）。 每个螺旋螺纹（30）还包括前推动面（36）和后表面（38）。 每个前推面（36）的轮廓（40）与筒体（18）的内表面（24）作用，以形成逐渐变窄的通道（46），材料通过该通道被迫进入高伸长和剪切应力的多个区域 （48），其用于分解材料的附聚物，从而分散地混合材料。 还提出了具有单个螺杆（28）的螺杆挤出机（100），其包括彼此旋转偏移的分散盘（102），并且其设计不受与第二盘的相互作用的约束，其提供改进的分配和分散混合 。 还提出了一种使用具有推挤面（36）型材（40）的螺杆挤出机（10）挤压材料的方法，该型材（40）与筒体（18）内表面（24）结合形成逐渐变窄的通道（46），以提供改进的分散性 混合。

公开(公告)号：US5599098A

公开(公告)日：1997-02-04

申请号：US572678

申请日：1995-12-14

申请人： Andrew W. Christie

发明人： Andrew W. Christie

IPC分类号： B29C47/60 ,  B29C47/62 ,  B29B1/06

CPC分类号： B29C47/60 ,  B29C47/6075 ,  B29C47/62 ,  B29C47/0009

摘要： A plastic materials screw has a metering section defined by a series of axially extending discontinuous and partially overlapping flightings. The flightings overlap each other by about a half to one turn to define overlapping portions whereby the flow in the primary channel is divided into a pair of secondary flow channels which have velocity profiles normal to the channel root greater than that in the primary channel. At the end of the overlapped portion, the first flighting is discontinued and the second flighting continues with a result that the flows are recombined in a distributive manner to provide improved mixing with a minimum of additional shear stress.

摘要翻译： 塑料材料螺杆具有由一系列轴向延伸的不连续和部分重叠的排放物限定的计量部分。 飞行重叠彼此大约半到一圈以限定重叠部分，由此主通道中的流动被分成一对次级流动通道，其具有与通道根的垂直的速度分布大于主通道中的速度分布。 在重叠部分的末端，中断第一次排放，并且继续第二次排出，结果使得流以分配方式重新组合，以提供具有最小额外剪切应力的改进的混合。

公开(公告)号：US5033860A

公开(公告)日：1991-07-23

申请号：US279823

申请日：1988-12-05

申请人： Kensaku Nakamura

发明人： Kensaku Nakamura

IPC分类号： B29C47/64 ,  B29B7/42 ,  B29C47/60

CPC分类号： B29C47/60 ,  B29C47/6018 ,  B29C47/6043 ,  B29C47/6075 ,  B29C47/0009

摘要： This invention relates to a rotary kneading screw installed in an extruder kneading and extrusion-molding a material mixture of a synthetic resin such as polyester resin mixed with one or more of master-batch, calcium carbonate, talc and carbon fiber. Progressively higher pressures are applied to the material mixture passing through a kneading section defined in the rotary screw. This rotary kneading screw is thus capable of kneading and extruding the material mixture in a large amount without deteriorating its physical properties and without lowering fluidity and molecular weight thereof even where the material mixture is difficult to knead.

摘要翻译： 本发明涉及一种旋转混炼螺杆，其特征在于，在挤出机中捏合和挤出成型混合有母料，碳酸钙，滑石和碳纤维中的一种或多种的聚酯树脂的合成树脂的混合物。 对通过旋转螺杆中限定的捏合部分的材料混合物施加逐渐增加的压力。 因此，即使在难以捏合的情况下，该旋转混炼螺杆也能够大量混炼和挤出混合物，而不会降低其物理性能并且不会降低其流动性和分子量。

公开(公告)号：US3986709A

公开(公告)日：1976-10-19

申请号：US547904

申请日：1975-02-07

申请人： Willem Vermeulen

发明人： Willem Vermeulen

IPC分类号： B29C44/34 ,  B29C47/10 ,  B29C47/60 ,  B29C47/76 ,  A21C1/06 ,  B29H1/10

CPC分类号： B29C47/766 ,  B29C44/3442 ,  B29C47/1063 ,  B29C47/1072 ,  B29C47/60 ,  B29C47/6075 ,  B29C47/0009 ,  B29K2105/0005 ,  Y10S264/05

摘要： In a single screw extruder particularly adapted for extrusion of foamed or foamable thermoplastic material by direct injection of gas or volatilizable liquid into the molten feed in the extruder, an improved means for mixing the gaseous or volatilizable liquid blowing agent with the molten feed in the extruder comprises a flow barrier between two adjacent flights of the worm screw and a gap in the foremost one of said adjacent screw flights, such that substantially the total polymer mass being forwarded by the screw is forced through the gap and the flow channel section behind the flow barrier remains substantially free of polymer over about one complete revolution of the screw, the blowing agent being injected into a space which is substantially free of polymer mass from a conduit inside the root of the screw through at least one opening between said adjacent flights and near that gap. This provides a relatively large area of contact between the blowing agent and polymer, conducive to fast and uniform diffusion of the blowing agent into the polymer.The same construction is also adaptable to devolatilizing of a polymer mass containing some volatilizable fluid material.

公开(公告)号：US3944191A

公开(公告)日：1976-03-16

申请号：US420155

申请日：1973-11-29

申请人： Tadashi Kasamatsu

发明人： Tadashi Kasamatsu

IPC分类号： B29C45/00 ,  B29B7/00 ,  B29C37/00 ,  B29C45/47 ,  B29C45/62 ,  B29C47/00 ,  B29C47/58 ,  B29C47/60 ,  B29C47/66 ,  B29B1/06

CPC分类号： B29C45/47 ,  B29C47/585 ,  B29C47/60 ,  B29C47/6012 ,  B29C47/6018 ,  B29C47/6075 ,  B29C47/668

摘要： A plastics extrusion-injection molding machine comprising a screw cylinder formed with supply, compression and melting portions having boosting means formed in the supply portion to allow plastic material passing therein to fully occupy the supply section and boost the discharge pressure of the plastic material to a predetermined level high enough to permit injection molding. The machine also includes back-flow means formed in the screw member at the melting portion to allow plastic material to escape backwardly and prevent abnormally high pressure from building up in the machine.

摘要翻译： 一种塑料挤出注塑机，包括形成有供应压缩和熔化部分的螺杆缸，其具有形成在供应部分中的增压装置，以允许塑料材料通过其中，以完全占据供应部分并将塑料材料的排出压力提高到 预定水平高到足以允许注射成型。 该机器还包括在熔化部分处形成在螺杆构件中的后流装置，以允许塑料材料向后逸出，并防止异常高压在机器中积聚。

公开(公告)号：US3941535A

公开(公告)日：1976-03-02

申请号：US511072

申请日：1974-10-01

申请人： Louis F. Street

发明人： Louis F. Street

IPC分类号： B29B7/42 ,  B29C47/60 ,  B01F7/02

CPC分类号： B29C47/60 ,  B29B7/429 ,  B29C47/6075 ,  B29C47/0009

摘要： The present invention relates to an improvement in screw extrusion apparatus for handling resinous thermoplastic and similar materials, which has a portion of the length of the screw supplied with protuberances rising from the root of the screw and terminating in an outer surface spaced from the extruder bore giving intensive high shear treatment to the process material in the space therebetween with a dynamic volumetric treating capacity in this space greater than one and one half times the total throughput rate and between these protuberances passageways for separating and recombining of material to effect low shear high volume mixing.

摘要翻译： 本发明涉及用于处理树脂状热塑性塑料和类似材料的螺杆挤出设备的改进，螺杆挤出设备具有螺杆长度的一部分，其供应有从螺杆根部起升的突起并且终止于与挤出机孔间隔开的外表面 对其间的空间进行强烈的高剪切处理，其中在该空间中的动态体积处理能力大于总吞吐率的一倍半以上，并且用于分离和重新组合材料以实现低剪切大体积的这些突起通道之间 混合。

公开(公告)号：US3929322A

公开(公告)日：1975-12-30

申请号：US45625174

申请日：1974-03-29

申请人： KRAUSS MAFFEI AG

发明人： HANSLIK WILHELM

IPC分类号： B29B7/00 ,  B29C47/00 ,  B29C47/42 ,  B29C47/60 ,  B29B1/10

CPC分类号： B29C47/42 ,  B29C47/0009 ,  B29C47/6075

摘要： An extruder has a housing formed with an axial passage and a relatively large-diameter central screw in the passage. A plurality of small-diameter outer screws angularly spaced within the passage about the central screw mesh therewith. The outer screws form outer flow passages of substantially smaller volume and the screw thread of the central screw forms central flow passages of larger volume than where these screws had geometrically complementary threads. The central screw and the outer screws are rotated in opposite senses at the same peripheral speed. In this manner the synthetic-resin material plasticized in the extruder exits from the extruder at the same temperature both in the region of the outer screws and the central screw. The axial length of the screw threads can be different, the gap between their flanks can be different, or the radial gap between their crowns and roots can be different so as to effect this difference in volume.

摘要翻译： 挤出机具有在通道中形成有轴向通道和相对大直径的中心螺钉的壳体。 多个小直径外螺钉在通道内围绕中心螺丝成角度间隔开与其啮合。 外部螺钉形成体积较小的外部流动通道，并且中心螺钉的螺纹形成的体积大于其中这些螺钉具有几何互补螺纹的中心流动通道。 中心螺丝和外螺丝以相同的圆周速度以相反的方向转动。 以这种方式，挤出机中塑化的合成树脂材料在外螺钉和中心螺杆的区域中以相同的温度从挤出机中排出。 螺纹的轴向长度可以不同，它们的侧面之间的间隙可以不同，或者它们的冠部和根部之间的径向间隙可以不同，以便实现该体积的差异。

公开(公告)号：US3642752A

公开(公告)日：1972-02-15

申请号：US3642752D

申请日：1969-08-08

申请人： AMERICAN CYANAMID CO

发明人： SUTTER DAVID LORD

IPC分类号： B29C47/00 ,  B29C47/38 ,  B29C47/50 ,  B29C47/60 ,  B29C47/62 ,  B29C47/76 ,  C08F2/00 ,  C08F3/68 ,  C08F15/18

CPC分类号： B29C47/6075 ,  B29C47/0021 ,  B29C47/0054 ,  B29C47/38 ,  B29C47/50 ,  B29C47/60 ,  B29C47/625 ,  B29C47/76

摘要： AN APPARATUS FOR EXTRUDING AND DEVOLATILIZING THERMOPLASTIC MATERIALS COMPRISING A PAIR OF CYLINDERS EACH CONTAINING AN EXTRUDER SCREW FOR PROCESSING POLYMERIC THERMOPLASTIC MATERIALS AND A LINK JOINING THE CYLINDERS. THIS INVENTION ALSO DISCLOSES A PROCESS FOR MAKING THE EXTRUDED POLYMERIC THERMOPLASTIC SHEET, AND DISCLOSES A NOVEL PRODUCT PRODUCED ACCORDING TO THE PROCESS OF THE PRESENT INVENTION. FINALLY, THERE IS DISCLOSED A SCREW FOR USE IN THE BARREL OF A SCREW EXTRUDER FOR FOWARDING MATERIAL FROM THE INLET END TO THE DISCHARGE END TEREOF.

公开(公告)号：US3368724A

公开(公告)日：1968-02-13

申请号：US53542066

申请日：1966-03-18

申请人： REIFENHAUSER KG FA

发明人： PETERS ERHARD ,  REIFENHAUSER HANS ,  REIFENHAUSER FRITZ

IPC分类号： B29B7/42 ,  B29C45/60 ,  B29C45/72 ,  B29C47/60 ,  B29C47/62 ,  B29C47/64

CPC分类号： B29C47/625 ,  B29B7/421 ,  B29C45/60 ,  B29C45/72 ,  B29C47/0009 ,  B29C47/60 ,  B29C47/6006 ,  B29C47/6075