公开(公告)号：US10882015B2

公开(公告)日：2021-01-05

申请号：US15764655

申请日：2016-09-27

申请人： Coperion GmbH

发明人： Sören Welb ,  Ulrich Conrad ,  Peter Munkes

IPC分类号： B01F15/06 ,  B01F7/00 ,  B29C48/80 ,  B01F7/08 ,  B01F15/00 ,  B29C45/74 ,  B29C48/25 ,  B29C48/40 ,  B29C48/57 ,  B29C48/68 ,  B29C48/54 ,  B29C48/505 ,  B29C48/03

摘要： A screw machine includes an inductive heating device for the processing of material to be processed. The inductive heating device is used to heat the material in a heating zone. In the heating zone, at least one housing portion is made of an electromagnetically transparent material at least partly, the material being non-magnetic and electrically non-conductive, whereas at least one treatment element shaft is made of an electrically conductive material at least partly. During the processing of the material, the inductive heating device generates an alternating magnetic field that produces eddy current losses in the at least one treatment element shaft, the eddy current losses leading to a temperature increase of the at least one treatment element shaft. The material is heated on the at least one heated treatment element shaft, in particular until it melts. The screw machine allows a simple and efficient melting of the material, with the result that a mechanical energy input and a resulting wear of the screw machine can be reduced significantly.

公开(公告)号：US10350809B2

公开(公告)日：2019-07-16

申请号：US15134768

申请日：2016-04-21

申请人： Robert F. Dray, Sr.

发明人： Robert F. Dray, Sr.

IPC分类号： B29C48/56 ,  B29B7/42 ,  B29C48/54 ,  B29C48/55 ,  B29C48/395 ,  B29C48/16 ,  B29C48/565

摘要： An improved screw has a shaft having a surface and a central axis and at least one flight extending helically along the surface of the shaft in successive turns. A continuous groove is formed in the surface of the shaft and extends between successive, pushing and trailing, turns of the flight at a selected angle greater than zero. The groove defines at least one generally triangular land having a base aligned with a pushing turn of the flight and an apex between successive turns of the flight. The groove also defines another generally triangular land having a base aligned with a trailing turn of the flight. Barriers or dams may be provided on the lands and in the grooves. A second continuous groove may also be formed in the surface of the shaft.

公开(公告)号：US11312056B2

公开(公告)日：2022-04-26

申请号：US16322762

申请日：2017-08-04

申请人： THE JAPAN STEEL WORKS, LTD.

发明人： Yoshitaka Kimura ,  Makoto Tojo ,  Daigo Saga

IPC分类号： B29C48/40 ,  B29C48/405 ,  B29C48/25 ,  B29C48/285 ,  B29C48/54 ,  B29C48/55 ,  B29C48/63 ,  B29C48/68 ,  B29C48/685 ,  B29C48/00

摘要： A twin screw extruder (10) for producing a fiber-reinforced resin composition, which is obtained by charging the extruder with a thermoplastic resin and reinforcing fibers in roving form and the reinforcing fibers being fibrillated/cut and being dispersed/kneaded into the thermoplastic resin, comprises: a plate-shaped blade (15), which protrudes from the inner surface of a cylinder (11) and faces a screw (20) and the longitudinal direction of which faces the axial direction of the cylinder; and a height adjustment means (16) for adjusting the gap between the blade (15) and the screw (20).

公开(公告)号：US11117306B2

公开(公告)日：2021-09-14

申请号：US15773738

申请日：2016-09-27

申请人： Coperion GmbH

发明人： Sören Welb

IPC分类号： B29C48/82 ,  B29C48/84 ,  B29C48/54 ,  B29C48/57 ,  B29C48/92 ,  H05B6/10 ,  B29C48/40 ,  B29C48/505 ,  B29C48/68 ,  B29C48/80 ,  B29C48/25 ,  B29C45/62 ,  B29C48/03 ,  B29C45/74

摘要： A screw machine includes an inductive heating device for processing of material to be processed. The inductive heating device is used to heat the material in a heating zone. In the heating zone, at least one housing portion is made of an electromagnetically transparent material at least partly, the material being non-magnetic and electrically non-conductive, whereas at least one treatment element shaft is made of an electrically conductive material at least partly. The inductive heating device includes at least one coil formed integrally with a component of the at least one housing portion, in particular in such a way as to form a hybrid component. During the processing of the material, the inductive heating device generates an alternating magnetic field that produces eddy current losses in the at least one treatment element shaft, the eddy current losses leading to a temperature increase of the at least one treatment element shaft.

公开(公告)号：US11110638B2

公开(公告)日：2021-09-07

申请号：US15345758

申请日：2016-11-08

申请人： Toshiba Kikai Kabushiki Kaisha

发明人： Akiyoshi Kobayashi ,  Shigeyuki Fujii ,  Takafumi Sameshima

IPC分类号： B29C48/51 ,  B29C48/57 ,  B29C48/67 ,  B29C48/285 ,  B29C48/68 ,  B29C48/25 ,  B29B7/48 ,  B29C48/395 ,  B29C48/80 ,  B29B7/82 ,  B29C48/40 ,  B29C48/63 ,  B29C48/03 ,  B29C48/55 ,  B29C48/53 ,  B29C48/54 ,  B29K101/12 ,  B29K105/00

摘要： A conveyance portion, a barrier portion, and a path are provided at places of a portion of a screw main body in which a kneading portion is provided. In at least one of the places, an entrance is opened to cause raw materials, conveyance of which is limited by a barrier portion to increase pressure on the raw materials, to flow in. The raw materials flowing in from the entrance flow through the path in the opposite direction to a conveyance direction of the conveyance portion. An exit is opened in an outer circumferential surface of the screw main body at a position outside the conveyance portion in which the entrance is opened.

公开(公告)号：US11014267B2

公开(公告)日：2021-05-25

申请号：US15746880

申请日：2016-03-17

申请人： Guangdong Industry Polytechnic

发明人： Baiping Xu ,  Huiwen Yu ,  Liang He ,  Jinwei Chen ,  Wenliu Zhuang ,  Meigui Wang

IPC分类号： B29B7/48 ,  B29C48/535 ,  B29C48/68 ,  B29C48/40 ,  B29C48/405 ,  B29C48/54 ,  B29C48/57 ,  B29C48/76

摘要： A co-rotating self-cleaning two-screw extruder with a gradual number of threads and through self-cleaning function, and a processing method using the same, are disclosed. The screw assembly in the extruder includes a first screw (3) and a second screw (4) that co-rotate at the same speed in engagement; the first screw (3) includes a first single threaded element, a first transition element, a multiple threaded element, a second transition element and a second single threaded element that are connected in sequence; and the second screw (4) includes a first single threaded element, a third transition element, a multiple threaded element, a fourth transition element and a second single threaded element that are connected in sequence. The materials are transferred by rotation of the first (3) and second screws (4), and get their respective compositions mixed based on the structure of a gradual number of threads; with the flow passage expanded, contracted and re-expanded in shape in sequence, the materials undergo the single-to-multiple threaded, multiple-to-single threaded and again single-to-multiple threaded chaotic mixing in sequence; and the first and second screws achieve the self-cleaning effect by wiping each other.

公开(公告)号：US10576661B2

公开(公告)日：2020-03-03

申请号：US14122086

申请日：2012-05-30

申请人： Manabu Ikeya ,  Makoto Ishikawa ,  Reo Fujita ,  Seiji Takamoto ,  Shigeki Inoue

发明人： Manabu Ikeya ,  Makoto Ishikawa ,  Reo Fujita ,  Seiji Takamoto ,  Shigeki Inoue

IPC分类号： B29B7/42 ,  B29B7/48 ,  B29B7/46 ,  B29C48/55 ,  B29C48/54 ,  B29C48/575 ,  B29C48/03 ,  B29C48/40 ,  B29C48/255 ,  B29C48/535

摘要： There is provided with a screw that is inserted into a cylinder an inside of which a material is loaded, and is rotatably supported in both end portions on an upstream side and a downstream side, or in an end portion on the upstream side, in the cylinder; a first kneading blade including a plurality of first blades that are helically provided on the screw and send the material toward the downstream side with rotation of the screw; and a second kneading blade including a second blade that is helically provided on the screw and returns the material, which is sent toward the downstream side by the first kneading blade, toward the upstream side, the number of blades in the second blade being smaller than the number of blades in the first blade.

公开(公告)号：US10449498B2

公开(公告)日：2019-10-22

申请号：US15116028

申请日：2014-12-22

申请人： KOBE STEEL, LTD.

发明人： Kazuo Yamaguchi ,  Yoshinori Kuroda ,  Hideo Funahashi ,  Tsugushi Fukui

IPC分类号： B01F7/08 ,  B01F7/00 ,  B29B7/48 ,  B29C48/40 ,  B29C48/52 ,  B29C48/54 ,  B29C48/55 ,  B29C48/57 ,  B29C48/25 ,  B29C48/68

摘要： A continuous kneading device including a pair of kneading rotors, capable of increasing mesh between the kneading rotors while also suppressing a kneading load applied to the kneading rotors. The continuous kneading device including a barrel and a pair of kneading rotors housed in the barrel. The kneading rotors rotate in mesh in directions different from each other. Each kneading rotor includes a plurality of kneading flights for kneading a material supplied into the barrel. The material is fed axially from the upstream kneading section to the downstream kneading section to be sequentially kneaded. The kneading flight constituting the downstream kneading section has a rotational outer diameter larger than a rotational outer diameter of the kneading flight constituting the upstream kneading section.

公开(公告)号：US11306206B2

公开(公告)日：2022-04-19

申请号：US16320567

申请日：2017-07-25

申请人： FPInnovations

发明人： Wadood Yasser Hamad ,  Shunxing Su ,  Norman Roberts ,  Otman Oulanti ,  Michelle Agnes Ricard ,  Chuanwei Miao

IPC分类号： C08L97/02 ,  C08L23/12 ,  C08L23/06 ,  C08L67/04 ,  C08L55/02 ,  C08J3/20 ,  C08J3/21 ,  B29B7/92 ,  B29C48/00 ,  B29C70/44 ,  C08J3/205 ,  B29C48/14 ,  B29C48/18 ,  B29B7/48 ,  B29B7/72 ,  B29B7/82 ,  B29B7/86 ,  B29K311/14 ,  B29K1/00 ,  B29C48/57 ,  B29C48/875 ,  B29C48/54 ,  B29C48/55 ,  B29B9/14 ,  B29B9/06 ,  B29K101/12

摘要： A composite and method for producing the composite by incorporating wood or wood pulp fibres with a suitable thermoplastic polymer and coupling agent are described. Homogeneous, void-free transparent/translucent thermoplastic materials in the form of pellets, films or three-dimensional moldable products are produced. The wood pulp fibres can be discrete natural fibres, and flexible assemblies of nano to micro elements, e.g., assemblies of aggregated carbon nanotubes. It is also possible to use our vacuum-assisted co-extrusion process to produce hybrid composites comprising the wood pulp fibre and a further rigid fibre, like glass or carbon fibres, and a flexible fibre or fibrillar network, like cellulose fibres or cellulose filaments. The thermoplastic resin can be, but not limited to, polyolefins, like polypropylene or polyethylene, or polyesters, like polylactic acid, or co-polymers, like acrylonitrile-butadiene-styrene terpolymer.

公开(公告)号：US11224991B2

公开(公告)日：2022-01-18

申请号：US15221277

申请日：2016-07-27

申请人： Toshiba Kikai Kabushiki Kaisha ,  HSP Technologies Inc.

发明人： Akiyoshi Kobayashi ,  Shigeyuki Fujii ,  Takafumi Sameshima ,  Hiroshi Shimizu

IPC分类号： B29B7/42 ,  B29C48/54 ,  B29C48/55 ,  B29C48/40 ,  B29C48/535 ,  B29B7/74 ,  B29B7/84 ,  B29B7/82 ,  B29C48/395 ,  B29B7/48 ,  B29C48/51 ,  B29B7/66 ,  B29B7/72

摘要： An extruder screw conveying raw materials while kneading them includes a screw main body, conveyance portions, barrier portions, and paths. The conveyance portions convey the raw materials in an axial direction. The paths each include an entrance and an exit. The raw materials, the conveyance of which is limited by the barrier portions, flow in from the entrance. The raw materials flowing in from the entrance flow through the paths in the same direction as a conveyance direction of the conveyance portions. The exit is opened in the outer circumferential surface of the screw main body at a position outside the conveyance portions in which the entrance is opened.