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41. 发明授权

US4826422A Restriction insert for an extrusion die 失效
标题翻译：用于挤出模头的限制插入件
公开(公告)号：US4826422A
公开(公告)日：1989-05-02
申请号：US143658
申请日：1988-01-13
申请人： Stephen B. Hunter
发明人： Stephen B. Hunter
IPC分类号： B29C47/20 , B29C47/22 , B29C47/70
CPC分类号： B29C47/225 , B29C47/20 , B29C47/702 , B29C47/0026
摘要： A restriction insert adapted to be mounted on a spider of an extrusion die has a generally hollow body formed by integral first and second conical walls wherein the first conical wall has a larger inner diameter than that of the second conical wall. A pair of spaced axially extending material inner flow passages are formed concentrically about the axial bore opening in an outer end of the second conical wall and communicates with the interior of the body. A frustro-conical shaped groove is formed in the outer end of the second conical wall within the interior of the body to provide a tapered flow path for the material entering the inner flow passages. A pair of outer flow passages are formed concentrically in an annular shoulder at the junction of the conical walls. A generally pointed annular edge is formed on the interior of the second conical wall and in combination with the tapered inner surface of the first conical wall form tapered flow paths for the material entering the outer flow passages. The outer flow passages radially overlap adjacent ends of the inner flow passages whereby two concentric sleeves of material are produced which are radially compressed together in forming the final tubular extrudate to eliminate uneven gauge and trapped air caused by the flow of material around spider legs prior to passing through the extrusion orifice.
摘要翻译：适于安装在挤出模头的蜘蛛上的限制插入件具有由整体的第一和第二锥形壁形成的大致中空的主体，其中第一锥形壁具有比第二锥形壁更大的内径。一对间隔开的轴向延伸的材料内部流动通道围绕第二锥形壁的外端中的轴向孔开口同心地形成并与主体的内部连通。在本体内部的第二锥形壁的外端形成截头圆锥形槽，以提供进入内流道的材料的锥形流动路径。一对外部流动通道同心地形成在圆锥形壁的接合处的环形肩部中。在第二锥形壁的内部形成大致尖的环形边缘，并且与第一锥形壁的锥形内表面组合形成用于进入外部流动通道的材料的锥形流动路径。外部流动通道径向地重叠内部流动通道的相邻端部，由此产生两个同心的材料套筒，其在径向压缩在一起以形成最终的管状挤出物，以消除在蜘蛛腿之前由材料流动引起的不均匀的表面和被捕获的空气通过挤出孔。

42. 发明授权

US4789513A Coextrusion apparatus and process 失效
标题翻译：共挤出设备和工艺
公开(公告)号：US4789513A
公开(公告)日：1988-12-06
申请号：US59102
申请日：1987-06-05
申请人： Peter F. Cloeren
发明人： Peter F. Cloeren
IPC分类号： B29C47/04 , B29C47/06 , B29C47/16 , B29L9/00 , B29C47/70
CPC分类号： B29C47/128 , B29C47/065 , B29C47/0816 , B29C47/145 , B29C47/16 , B29C47/0016 , B29C47/0019 , B29C47/0021
摘要： The present invention provides a novel coextrusion apparatus including, in a preferred embodiment, a die within a feedblock. The apparatus includes edge seam-forming channels, which provide a core layer sandwiched within adjacent layers having integrally seamed edges. Also provided in a unique process for sandwiching a core stream within adjacent layers.

43. 发明授权

US4746477A Production of partially foamed extruded plastic products 失效
标题翻译：部分发泡挤出塑料制品的生产
公开(公告)号：US4746477A
公开(公告)日：1988-05-24
申请号：US875856
申请日：1986-06-18
申请人： Sheldon M. Wecker , Lou Kohl
发明人： Sheldon M. Wecker , Lou Kohl
IPC分类号： B29C44/22 , B29C44/34 , B29C47/06 , B29C47/70 , C08J9/12 , C08J9/34 , B29C67/22
CPC分类号： B29C44/3442 , B29C44/22 , B29C44/50 , B29C47/128 , B29C47/702 , B29C47/0019 , B29C47/0021 , B29K2105/043 , Y10S264/05 , Y10S264/13 , Y10S264/14
摘要： In a method of extruding a plastic product having a foamed core layer and at least one unfoamed skin layer by forcing contiguous flows of a resin through a coextrusion die, one of the flows containing a blowing agent and a nucleating agent for forming the core layer and the second of the flows containing only the blowing agent, for forming the skin layer, the steps of establishing a fluent stream of resin containing the blowing agent, dividing the stream into separate streams which are separately conducted to the coextrusion die to constitute the core-forming and skin-forming flows, respectively, and selectively adding the nucleating agent only to that one of the separate streams which constitutes the core-forming flow. The nucleating agent used can be one which is effectively completely expended when the core layer foams, so that the foamed product is essentially free of active nucleating agent.
摘要翻译：在通过强制树脂通过共挤出模具的连续流动来挤出具有发泡芯层和至少一个未发泡表皮层的塑料制品的方法中，其中一个流动包含用于形成芯层的发泡剂和成核剂，仅包含发泡剂的第二个流程，用于形成表皮层的步骤是建立含有发泡剂的流动性树脂的步骤，将流分离成独立的流，其分别导入共挤出模头以构成芯 - 分别形成和成皮流，并且仅将成核剂仅选择性地添加到构成芯形成流的单独流中的一个。使用的成核剂可以是当芯层发泡时有效完全消耗的成核剂，使得发泡产品基本上不含活性成核剂。

44. 发明授权

US4698118A Apparatus for forming plastic fastener and plastic accessory strips and uniting the same with a film 失效
标题翻译：用于形成塑料紧固件和塑料附件带并将其与薄膜结合在一起的装置
公开(公告)号：US4698118A
公开(公告)日：1987-10-06
申请号：US632661
申请日：1984-07-20
申请人： Katsuhito Takahashi
发明人： Katsuhito Takahashi
IPC分类号： B29C47/00 , B29C47/70 , B29C65/00 , B29C65/02 , B29D5/10 , B31B19/90 , B29C69/00 , B32B1/04
CPC分类号： B29C66/4722 , B29C47/0019 , B29C47/70 , B29C65/028 , B29C66/474 , B29C66/83413 , B29C66/83415 , B29D5/10 , B29C47/0021 , B29C47/003 , B29C47/0033 , B29C47/0038 , B29C47/0047 , B29C47/0057 , B29C47/0059 , B29C47/0064 , B29L2005/00 , B31B2219/9019 , Y10S425/814 , Y10T156/1712 , Y10T156/1741 , Y10T428/1334 , Y10T428/24612
摘要： For producing a plastic film having a plastic fastener, with male and female interlockable profiles, and accessory strips, such as ribs and strips, in preparation of a reclosable plastic bag, there is provided a first forming die which extrudes the accessory strips, a separate second forming die which extrudes the fastener, a pair of nip rolls for press-bonding the accessory strips onto the surface of the film being fed in the vicinity of the first forming die, and a bonding roll for receiving the film with press-bonded accessory strips and the fastener from the second forming die placed onto the film surface such that the fastener is bonded to the surface of the film at the bonding roll by virtue of heat.
摘要翻译：为了制备具有塑料紧固件的塑料膜，具有阳和阴互锁型材以及附件条（例如肋条和条），在制备可再封闭的塑料袋时，提供了第一成形模，其挤出附件条，第二成形模挤出紧固件，一对夹持辊，用于将附件带压接到在第一成形模具附近供给的膜的表面上;粘合辊，用于用压接附件接收膜条带和紧固件从第二成形模具放置在膜表面上，使得紧固件通过热量在粘合辊上结合到膜的表面。

45. 发明授权

US4548569A Accumulator head 失效
标题翻译：蓄能器头
公开(公告)号：US4548569A
公开(公告)日：1985-10-22
申请号：US637962
申请日：1984-08-06
申请人： Frank J. Pitigliano , Paul E. McGill
发明人： Frank J. Pitigliano , Paul E. McGill
IPC分类号： B29C47/20 , B29C47/28 , B29C47/70
CPC分类号： B29C47/54 , B29C47/0054 , B29C47/20 , B29C47/28 , B29C47/702 , B29C47/0023 , B29C47/0026 , B29C47/26
摘要： An injection molding apparatus includes a plasticizer (A) for plasticizing plastic pellets. An accumulator head (B) includes a plasticized material receiving entrance (40) for receiving the plasticized material. A mandrel (14) is disposed centrally within the outer body such that an annular cavity (12) is defined therebetween. A ram assembly (16) is mounted in the annular cavity for longitudinally reciprocating motion therein. Reciprocation of the ram assembly urges accumulated plasticized material through a downstream die (C). The ram assembly includes an outer ram member (30), an intermediate ram member (34), and an inner ram member (36). The ram members define a first passage array (60) between the intermediate and outer ram members and a second passage array (70) between the inner and intermediate ram members. The first and second passage arrays are operatively connected with the outer body plasticized material entrance to receive plasticized material therefrom and are operatively connected with the outer body cavity to discharge concentric annular flows of plasticized material thereto.
摘要翻译：注射成型设备包括用于塑化塑料颗粒的增塑剂（A）。蓄能器头（B）包括用于接收塑化材料的增塑材料接收入口（40）。心轴（14）设置在外体内的中心，使得在其间限定环形空腔（12）。柱塞组件（16）安装在环形空腔中用于其中的纵向往复运动。压头组件的往复运动通过下游模具（C）促使累积的塑化材料。活塞组件包括外部柱塞构件（30），中间柱塞构件（34）和内部柱塞构件（36）。柱塞构件在中间和外部柱塞构件之间限定第一通道阵列（60）和在内部和中间柱塞构件之间的第二通道阵列（70）。第一和第二通道阵列与外部主体塑化材料入口可操作地连接，以从其中接收增塑材料，并且与外部体腔可操作地连接以将塑化材料的同心环形流向其排出。

46. 发明授权

US4293517A Die with insert and its use 失效
标题翻译：模具插入及其使用
公开(公告)号：US4293517A
公开(公告)日：1981-10-06
申请号：US139796
申请日：1980-04-14
申请人： Kenneth L. Knox
发明人： Kenneth L. Knox
IPC分类号： B29C47/16 , B29C47/70 , B29F3/04
CPC分类号： B29C47/165 , B29C47/0021 , B29C47/702
摘要： A die and a process are provided for extruding thermoplastic film with a controlled bead thickness. The die includes inserts at the ends of the die to alter flow of molten thermoplastic material.
摘要翻译：提供模具和方法用于挤出具有受控珠粒厚度的热塑性薄膜。模具包括在模具的端部处的插入件以改变熔融热塑性材料的流动。

47. 发明授权

US4208175A Coextrusion feedblock and process 失效
标题翻译：共挤出料块和工艺
公开(公告)号：US4208175A
公开(公告)日：1980-06-17
申请号：US945259
申请日：1978-09-25
申请人： Larry A. Rosenbaum
发明人： Larry A. Rosenbaum
IPC分类号： B29C47/06 , B29C47/70 , B29D23/04
CPC分类号： B29C47/0023 , B29C47/065 , B29C47/263 , B29C47/28 , B29C47/702
摘要： A feedblock fashioned from a plurality of plates is disclosed which distributes two flows of dissimilar synthetic resinous materials into a radially stratified annular form for extrusion by a pipehead die. The feedblock is mounted on a pipehead with the plurality of plates defining material flow channels for three strata. Independently operable valves vary stratum thickness and assure radially matched flow conditions between strata at confluence. Each stratum is independently accelerated through a convergent channel to assure that a uniform circumferential distribution of flow conditions develops. Moreover, two strata are developed through channel systems which do not induce circumferential maldistribution. The third stratum is handled to eliminate circumferential maldistribution. Accordingly, the process and apparatus develop stable annular flow with radial stratification having neither radial nor circumferential maldistributions that may later interact to distort the strata.
摘要翻译：公开了一种从多个板形成的进料块，其将两种不同的合成树脂材料流分散成径向分层的环形形式，以便通过管头模头挤出。进料块安装在管头上，多个板限定三层的材料流动通道。独立可操作的阀门可以改变层厚度，并确保汇合处地层之间径向匹配的流动条件。每个层通过收敛通道独立加速，以确保流动条件的均匀周向分布发展。此外，通过不引起周向分布不均的通道系统开发两层。处理第三层以消除周期性不均匀分布。因此，该方法和装置产生具有径向分层的稳定的环形流，其既不具有径向的也不具有周期性的不均匀分布，其随后可能相互作用以使地层变形。

48. 发明授权

US4107246A Extrusion control 失效
标题翻译：挤出控制
公开(公告)号：US4107246A
公开(公告)日：1978-08-15
申请号：US751860
申请日：1976-12-20
申请人： Ronald J. LaSpisa
发明人： Ronald J. LaSpisa
IPC分类号： B29C47/70 , B29C47/92 , G05D7/06 , G05D11/13 , B29F3/06
CPC分类号： B29C47/92 , B29C47/70 , G05D11/132 , G05D7/0605 , B29C2947/92019 , B29C2947/9259 , B29C2947/926 , B29C2947/92885 , B29C2947/92904 , B29C2947/92952 , B29C47/0023
摘要： In an extrusion system wherein a single source of molten extrudable material is utilized to provide feed to a plurality of extrusion lines, the rate of flow of extrudable material from the source thereof to the plurality of extrusion lines is controlled to provide a preselected total product output rate. The position of a flow control valve means associated with each extrusion line is controlled to maintain a preselected material supply pressure upstream of said plurality of extrusion lines and to provide a preselected relationship among the measured production rates of said plurality of extrusion lines. In a preferred embodiment, an extrusion system having two extrusion lines supplied by a single source of molten extrudable material is controlled to provide a preselected total production rate, a preselected molten material source pressure, and a preselected balance between the extrusion rates of the two extrusion lines.
摘要翻译：在挤出系统中，其中使用单一熔融可挤出材料源来向多条挤出生产线提供进料，控制可挤出材料从其来源到多条挤出生产线的流动速率，以提供预选的总产品产量率。控制与每个挤出生产线相关联的流量控制阀装置的位置以在所述多个挤出生产线上游保持预选的材料供应压力，并提供所述多个挤出生产线的测量生产率之间的预选关系。在优选的实施方案中，控制具有由单个熔融可挤出材料源供应的两个挤出生产线的挤出系统，以提供预选的总生产速率，预选的熔融材料源压力和两个挤出物的挤出速率之间的预选平衡线条。

49. 发明授权

US4061462A Apparatus for extruding thermoplastic material 失效
标题翻译：用于挤出热塑性材料的设备
公开(公告)号：US4061462A
公开(公告)日：1977-12-06
申请号：US586910
申请日：1975-06-16
申请人： Giancarlo Giannarelli , Walter Movilli
发明人： Giancarlo Giannarelli , Walter Movilli
IPC分类号： B29B7/00 , B29C47/00 , B29C47/14 , B29C47/70 , B29C47/86 , B29C47/92 , B29F3/00
CPC分类号： B29C47/14 , B29C47/702 , B29C47/86 , B29C47/862 , B29C47/866 , B29C47/92 , B29C2947/92704 , B29C2947/92904 , B29C47/0019
摘要： This invention relates to a process for extruding particular shapes in thermoplastic material and, more precisely, flat plates, corrugated plates and the like or, in general, shapes having one section much larger than the other; said process being suited to eliminate the uneven feed of the molten material coming out from a die. This invention relates also to an improved extrusion machine which is particularly useful for carrying out the aforementioned process.
摘要翻译：本发明涉及一种用于在热塑性材料中挤出特定形状的方法，更确切地说，涉及平板，波纹板等，或者一般地，具有比另一部分大得多的部分的形状; 所述方法适于消除从模具出来的熔融材料的不均匀进料。本发明还涉及一种改进的挤出机，其对于进行上述方法特别有用。

50. 发明授权

US4032279A Extrusion adapter 失效
标题翻译：挤出适配器
公开(公告)号：US4032279A
公开(公告)日：1977-06-28
申请号：US611396
申请日：1975-09-08
申请人： Heung Tai Kim
发明人： Heung Tai Kim
IPC分类号： B29C47/26 , B29C47/70 , B29D23/04
CPC分类号： B29C47/26 , B29C47/707 , B29C47/0009 , B29C47/0023 , B29C47/0026 , B29C47/20 , B29C47/30
摘要： An adapter apparatus for splitting a single extrudate into a plurality of extrudates wherein an adapter block of the adapter apparatus has at least three planar surfaces with an inlet opening on one planar surface and outlet openings on the other planar surfaces. A single conduit extends from the interior of the block to the inlet opening while a pair of conduits extend from the respective outlet openings and intersect the single conduit. Goosenecks interconnect each outlet opening to die means. All of the openings on the planar surfaces are circles.

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