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公开(公告)号：US20200009778A1
公开(公告)日：2020-01-09
申请号：US16573427
申请日：2019-09-17
IPC分类号： B29C48/07 , B29C48/25 , B29C48/78 , B29C48/255 , B29C48/285
摘要： A ram extrusion apparatus including a die having several thermal zones, a hopper for introducing a granular polymer resin to the die, and a ram for moving the granular polymer resin through the thermal zones of the die and out from an outlet end thereof at a temperature above the crystalline melt temperature of the polymer resin. The hopper may be designed to deliver the polymer resin into a resin inlet of the die in a plurality of specifically metered amounts which may vary across a width of the resin inlet end of the die. The apparatus may further include one or more finishing tables positioned after the outlet end of the die for receiving and moving the extruded resin away from the outlet end of the die so that there is no backpressure on the extruded resin, and which provide compression force and even cooling to the extruded resin.
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公开(公告)号：US10519952B2
公开(公告)日：2019-12-31
申请号：US14581412
申请日：2014-12-23
发明人： Matthias Henke
摘要： Melt pumps for pressing synthetic melt through a tool are disclosed. An example melt pump for building up pressure for pressing synthetic melt through a tool includes a compressor with two worm conveyors disposed in a housing, a transmission by means of which the worm conveyors are synchronously drivable, and a drive, where the transmission is disposed between the drive and the compressor. In the example melt pump, each worm conveyor in the transmission has an output shaft, and each worm conveyor is coupled to the corresponding output shaft by a coupling. In the example melt pump, the coupling comprises an output gear provided on the output shaft, and a drive gear provided on the worm conveyor and a coupling sleeve gripping the output gear and the drive gear, where the drive gear and the output gear have a different number of teeth.
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公开(公告)号：US10513103B2
公开(公告)日：2019-12-24
申请号：US15327856
申请日：2015-07-21
申请人： Stratasys, Inc.
发明人： Paul J. Leavitt , Andrew Rice , Timothy Hjelsand
IPC分类号： B01D45/12 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02 , B29C64/106 , B29C64/386 , B29C48/92 , B29C48/02 , B29C48/05 , B29C48/255 , B29C48/25 , B29C48/37 , B29K105/00 , B29C48/285
摘要： An assembly for use in an additive manufacturing system to print a three-dimensional part that includes an extruder comprising a gear and a motor that turns the gear, wherein rotation of the gear regulates a flow of material out of the extruder. A controller, provides a control signal to the motor to control the rate at which the motor turns the at least one gear and incorporates a time-varying signal into the control signal to reduce ripples in the material output by the extruder.
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公开(公告)号：US10428442B2
公开(公告)日：2019-10-01
申请号：US15419955
申请日：2017-01-30
发明人： Thomas R. Clark
IPC分类号： D02G3/24 , D01D5/08 , D01F6/62 , D01D1/10 , B29B17/00 , B29B17/02 , C08J11/04 , C08J11/06 , D01D1/04 , D01D1/06 , B29C48/92 , B29C48/05 , B29C48/29 , B29C48/275 , B29C48/285 , B29C48/425 , B29C48/435 , B29C48/38 , B29B13/00 , B29K105/00 , B29K67/00 , B29K105/26 , D01F1/06 , D01F6/92 , B29C48/14 , B29C48/17 , B29C48/25 , B29C48/385 , B29C48/76
摘要： A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) adding one or more color concentrates to the flakes; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 25 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.
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公开(公告)号：US10421227B2
公开(公告)日：2019-09-24
申请号：US15517022
申请日：2015-10-20
IPC分类号： B29C48/00 , B29C48/30 , B29C48/305 , B29C48/25 , B29C44/46 , B29C44/50 , B29C48/70 , B29K105/04
摘要： A shim stack foaming die for making foam slabs comprises a plurality of shims that are layered together under pressure to form a shim stack, wherein the shims combine to collectively define a plurality of die orifices in a working face, to define a main body of the shim stack foaming die, and also to define a plurality of die cavity that is fluidly connected to the plurality of die orifices. And articles foamed from the shim stack foaming die have found wide use in various applications, thermal or acoustic insulation, reinforcing layers and/or space-filling layers, and so on.
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公开(公告)号：US10406738B2
公开(公告)日：2019-09-10
申请号：US14512891
申请日：2014-10-13
IPC分类号： B29C48/265 , B29C48/25 , B29K101/00 , B29L7/00 , B29C48/08 , B29C48/69
摘要： A die assembly through which flowable material from a supply is controllably delivered to a processing assembly at which a sheet layer is formed. The die assembly has a main frame and a support assembly for the main frame. The support assembly includes components cooperating between the main frame and a base upon which the main frame is supported to allow controlled relative vertical movement between the main frame and base to thereby permit controlled alignment between the main frame and an upstream component that delivers flowable material from the supply to the die assembly.
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77.发明授权公开(公告)号：US10350810B2
公开(公告)日：2019-07-16
申请号：US14512943
申请日：2014-10-13
摘要： A barrel assembly through which flowable material is delivered to a die assembly through which the flowable material is delivered to form a sheet layer. The barrel assembly has: a conduit having a body with a length defining a lengthwise flow passage between upstream and downstream ends; and a support assembly for the conduit. The support assembly has: a) a conduit engaging assembly; and b) a guide assembly through which the conduit body and conduit engaging assembly are moved guidingly relative to a base, to which the guide assembly is mounted, in a path that is substantially parallel to the length of the conduit body.
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公开(公告)号：US10343322B2
公开(公告)日：2019-07-09
申请号：US14905992
申请日：2014-07-18
摘要： The present disclosure relates to devices for extruding plastics, notably mixtures of elastomers which are intended to be used in the manufacture of tires.
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公开(公告)号：US20240351262A1
公开(公告)日：2024-10-24
申请号：US18756320
申请日：2024-06-27
CPC分类号： B29C48/0018 , B29C48/10 , B29C48/254 , B29C48/49 , B29C48/885 , B29C48/9125 , B29C48/913
摘要： The invention relates to a blown film line for generating a blown film with at least one extruder for generating at least one melt strand, at least one distribution tool for converting the at least one melt strand into a circulating melt layer, an outlet nozzle for outputting the at least one melt layer, wherein this melt layer forms the blown film, and at least one device for subjecting the blown film to at least one fluid stream, in particular an air stream, for cooling the blown film. At least one pressure-providing device is furnished, with which the blown film may be brought to the device for subjecting the blown film to a fluid stream by means of at least one overpressure and/or one underpressure.
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公开(公告)号：US12115704B2
公开(公告)日：2024-10-15
申请号：US17436168
申请日：2020-03-12
IPC分类号： B29C43/18 , B29C31/04 , B29C33/00 , B29C33/10 , A61B17/00 , A61B17/15 , A61B17/17 , A61B17/56 , B29C48/25 , B29C48/345 , B29L31/00
CPC分类号： B29C43/18 , B29C31/041 , B29C33/0038 , B29C33/0061 , B29C33/10 , A61B2017/00526 , A61B17/15 , A61B17/17 , A61B2017/568 , B29C2043/189 , B29C48/25 , B29C48/254 , B29C48/345 , B29L2031/7546
摘要： According to an aspect of the invention there is provided a mouldable material carrier for use in producing an impression of a surgical site comprising: a base having a channel passing through the base between an inlet and an outlet; and a securing portion configured to secure a flexible sheet to the base around the outlet to cover the outlet such that, when mouldable material is urged through the inlet, the mouldable material is extruded out of the outlet and contained within a volume defined by the flexible sheet and the base, such that when the mouldable material carrier is urged against a surgical site, the mouldable material within the volume forms an impression of the surgical site without making contact with the surgical site.
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