US20190184620A1 - Extruder system - Google Patents

Extruder system Download PDF

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Publication number
US20190184620A1
US20190184620A1 US15/844,875 US201715844875A US2019184620A1 US 20190184620 A1 US20190184620 A1 US 20190184620A1 US 201715844875 A US201715844875 A US 201715844875A US 2019184620 A1 US2019184620 A1 US 2019184620A1
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US
United States
Prior art keywords
extruder
screw
cylindrical barrel
hopper
support frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/844,875
Other languages
English (en)
Inventor
Hongbing CHEN
Christopher David Dyrlund
Joshua Aaron Phillipson
Jared VANASDALE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Priority to US15/844,875 priority Critical patent/US20190184620A1/en
Assigned to GOODYEAR TIRE & RUBBER COMPANY, THE reassignment GOODYEAR TIRE & RUBBER COMPANY, THE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PHILLIPSON, JOSHUA AARON, CHEN, Hongbing, DYRLUND, CHRISTOPHER DAVID, VANASDALE, JARED ALLEN
Priority to EP18212007.1A priority patent/EP3498450B1/de
Priority to CN201811549840.8A priority patent/CN110027188B/zh
Publication of US20190184620A1 publication Critical patent/US20190184620A1/en
Priority to US17/205,738 priority patent/US11780144B2/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2567—Hopper or feeder parts
    • B29C47/083—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • B29C47/0864—
    • B29C47/627—
    • B29C47/66—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/265—Support structures or bases for apparatus, e.g. frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2888—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules in band or in strip form, e.g. rubber strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/501—Extruder feed section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B29C48/655—Screws with two or more threads having three or more threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/72—Feedback means, i.e. part of the molten material being fed back into upstream stages of the extruder
    • B29C48/725—Feedback means, i.e. part of the molten material being fed back into upstream stages of the extruder for plasticising or homogenising devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating

Definitions

  • the invention relates in general to extruders for rubber processing, and more particularly to an improved feed system for an extruder screw.
  • An extruder apparatus of the present invention includes a cylindrical barrel having an inlet end and an outlet end and an extruder screw mounted in the cylindrical barrel.
  • the screw has an outer surface having one or more helical flights mounted thereon.
  • the inlet end of the cylindrical barrel has a support frame mounted thereto, wherein an upper surface of the support frame is connected to a throat of a hopper.
  • An insert is mounted to the support frame and has a lower end which extends down into the cylindrical barrel, wherein the insert has an internal passageway having a first opening on the lower end and a second opening.
  • the invention provides in a second aspect a extruder apparatus comprising: a cylindrical barrel having an inlet end and an outlet end, an extruder screw mounted in the cylindrical barrel; the screw has an outer surface having one or more helical flights mounted thereon, wherein the inlet end of the cylindrical barrel is connected to a throat of a hopper, wherein one or more pressure relieving passageways are located in the cylindrical barrel, wherein a first end of the one or more pressure relieving passageways is located in the cylindrical barrel and in fluid communication with the pressure of the extruder screw, wherein a second end of the one or more pressure relieving passageways is located upstream of the extruder screw.
  • Hopper typically a cone-shaped slab feed “chute” which attaches to the top of an extruder feedbox.
  • the feed hopper establishes folds in the compound slab feeding into the extruder.
  • Feedbox that area of an extruder, where the screw is exposed to accept a rubber slab feed.
  • Typical cold feed extruders have a driven feed roll assembly which forms a pinch area with the screw flights and serves to pull slab compound through the feed hopper and fill the screw flights.
  • the feed roll assembly is usually a hinged assembly, which can be opened for cleaning and greater maintenance access to the screw and feedbox.
  • Cold Feed Extruder a piece of machinery for processing visco-elastic materials, including rubber. This machine accepts cold compound in slab form, warms the compound and moves the compound from the feedbox to the end of the barrel, by means of a rotating mechanical screw.
  • FIG. 1 is a schematic view of a hopper and screw system, as viewed looking down into the hopper, towards the screw.
  • FIG. 2 is a cross-sectional view of an improved feed hopper and screw assembly.
  • FIG. 3 is a cross-sectional view of an improved feed hopper and screw assembly in the direction 3 - 3 of FIG. 2 ;
  • FIG. 4 is an exploded view of a pressure relief assembly of the present invention.
  • FIG. 5 is a side view of the pressure relief assembly of FIG. 4 ;
  • FIG. 6 is a top perspective view of the pressure relief assembly of FIG. 4 ;
  • FIG. 7 is a view looking down into the hopper illustrating the regurgitated rubber being refed into the upstream section
  • FIG. 8 is a view looking down into the hopper illustrating yellow stock being fed into a hopper wherein the regurgitated blue colored rubber is refed into the upstream section;
  • FIG. 9 is an alternate embodiment of an extruder system of the present invention.
  • FIG. 2 illustrates an extruder assembly of the present invention shown generally at 10 which includes a feed hopper shown generally at 20 for feeding rubber stock to an extruder screw 12 .
  • the extruder screw 12 is mounted in a cylindrical barrel 14 .
  • the extruder screw 12 is rotatably mounted in the cylindrical barrel 14 and is suitably journaled in a bushing 16 in the hopper 20 .
  • the extruder screw 12 is typically rotated by power means such as a motor and gearbox (not shown).
  • the extruder screw 12 has an elongate cylindrical body 13 having at least two helical screw flights 30 , 32 mounted thereon.
  • the cylindrical barrel has an outlet end that together with the extruder screw and die may be used to form a rubber component of visco-elastic material, such as rubber.
  • the cylindrical barrel 14 has an inlet 40 at a feedbox 44 of the extruder screw.
  • the barrel inlet is connected to the outlet end or throat 24 of the feed hopper 20 .
  • the hopper 20 has a large inlet end 22 with angled sidewalls 23 which form a cross-sectional area that decreases from the inlet end 22 to the throat 24 .
  • the throat 24 is typically rectangular in shape and is generally quite wide to permit ready access by an operator to the cylinder barrel and extruder screw.
  • the hopper throat 24 is mounted to an upper end of a support frame 110 of a pressure relief assembly 100 of the present invention.
  • the cross-sectional shape of the support frame is preferably rectangular or shaped to mate with the cross-sectional shape of the throat.
  • the lower end 112 of the support frame 110 is mounted to the inlet 40 of the cylindrical barrel.
  • the pressure relief assembly 100 can be integrally formed with the hopper.
  • the pressure relief assembly 100 further includes a pressure reducer insert 120 that has an upper end 122 that forms a flush surface with the support frame 110 .
  • the pressure reducer insert 120 is preferably removably mounted in the support frame for ease of service. When the pressure reducer insert 120 is mounted in the support frame, a reduced throat opening 145 is formed in the hopper.
  • the pressure reducer insert 120 further includes a curved lower end 130 that extends downstream and is mounted adjacent the extruder screw 12 .
  • the lower end 130 of the pressure reducer insert has an internal fluid passageway 144 .
  • the internal fluid passageway 144 is approximately 90 degrees, and has an inlet opening 140 that is positioned in the cylindrical barrel adjacent the screw.
  • the internal fluid passageway has an outlet 142 located upstream of the lower end 130 .
  • the outlet 142 of the fluid passageway preferably has a diameter in the range of 3-25 mm, more preferably in the range of about 5-15 mm (about means +/ ⁇ 10%).
  • the cross-sectional area of the fluid passageway may range from about 7-490 square mm 2 .
  • the internal fluid passageway functions to reduce the pressure differential between the throat and the screw, and also to redirect the regurgitated rubber flow upstream of the screw to refeed.
  • the size of the refed rubber is controlled by regulating the cross-sectional area of the fluid passageway.
  • FIGS. 7 and 8 illustrate that by utilizing the inventive pressure relief assembly, the slab feed is directed towards one side of the hopper away from the rolling ball of rubber, avoiding interference. Furthermore, because the pressure differential is reduced, the size of the rolling ball is also reduced as well as reducing bite off.
  • FIG. 9 An alternate embodiment of the invention is shown in FIG. 9 .
  • the extruder system is the same as described above, except for the following differences.
  • the pressure relief assembly 100 is not utilized. Instead, one or more pressure relief passages 200 are provided in the modified extruder system 210 .
  • the one or more pressure relief passages 200 have a first hole 220 located adjacent the screw for fluid communication with the screw.
  • the first hole 220 may be located in the cylindrical barrel 14 .
  • the one or more pressure relief passages have a second hole 230 located upstream of the first hole 220 and upstream of the extruder screw 12 .
  • the second hole 230 is preferably located in the throat of the hopper 24 or in the general region of the throat.
  • the inventors have found by experimentation that by using either a pressure relief passage, they were able to reduce the size of the rolling ball. They found that a large pressure differential between the throat of the hopper and the pressure in the extruder screw barrel results in a large rolling ball which tends to cause bite off. By bleeding off or reducing the large pressure differential, they were able to reduce the size of the rolling ball and reduce bite off.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US15/844,875 2017-12-18 2017-12-18 Extruder system Abandoned US20190184620A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/844,875 US20190184620A1 (en) 2017-12-18 2017-12-18 Extruder system
EP18212007.1A EP3498450B1 (de) 2017-12-18 2018-12-12 Verbessertes extrudersystem
CN201811549840.8A CN110027188B (zh) 2017-12-18 2018-12-18 改进的挤出机系统
US17/205,738 US11780144B2 (en) 2017-12-18 2021-03-18 Extruder system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/844,875 US20190184620A1 (en) 2017-12-18 2017-12-18 Extruder system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/205,738 Division US11780144B2 (en) 2017-12-18 2021-03-18 Extruder system

Publications (1)

Publication Number Publication Date
US20190184620A1 true US20190184620A1 (en) 2019-06-20

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US15/844,875 Abandoned US20190184620A1 (en) 2017-12-18 2017-12-18 Extruder system
US17/205,738 Active 2038-09-10 US11780144B2 (en) 2017-12-18 2021-03-18 Extruder system

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US17/205,738 Active 2038-09-10 US11780144B2 (en) 2017-12-18 2021-03-18 Extruder system

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US (2) US20190184620A1 (de)
EP (1) EP3498450B1 (de)
CN (1) CN110027188B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11780144B2 (en) 2017-12-18 2023-10-10 The Goodyear Tire & Rubber Company Extruder system

Citations (4)

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Publication number Priority date Publication date Assignee Title
US2178955A (en) * 1933-07-31 1939-11-07 Draemann Max Production of rubber filaments
DE2051568A1 (en) * 1970-10-21 1972-04-27 Basf Ag Molten plastic extrusion - with pressure - controlled recycle system
US3745200A (en) * 1969-01-10 1973-07-10 P Geyer Extrusion method
JPS5772837A (en) * 1980-10-25 1982-05-07 Matsushita Electric Works Ltd Extruder

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US2807832A (en) 1955-01-31 1957-10-01 Standard Machinery Company Stock feed control for extrusion apparatus
US3005598A (en) 1956-08-28 1961-10-24 Us Rubber Co Device for feeding plastic material to an extruder
US3632255A (en) * 1969-01-10 1972-01-04 Uniroyal Inc Extrusion apparatus
US4642040A (en) * 1985-08-23 1987-02-10 Normag Corporation Extruder drivingly connected to gear pump
US4863366A (en) * 1988-06-08 1989-09-05 The B. F. Goodrich Company Feed unit for an extruder
US5909958A (en) * 1997-04-25 1999-06-08 Rauwendaal Extrusion Engineering, Inc. Screw extruder with independently adjustable groove depth
CN201505996U (zh) * 2009-09-23 2010-06-16 南京诚盟机械有限公司 可排气粉体喂料装置
US20140119153A1 (en) 2012-10-26 2014-05-01 The Goodyear Tire & Rubber Company Extruder screw with channel
CN204036795U (zh) * 2014-07-30 2014-12-24 广州石头造环保科技有限公司 无机粉体母粒自动生产线的多螺杆喂料机
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US11780144B2 (en) 2023-10-10
US20210206044A1 (en) 2021-07-08
CN110027188B (zh) 2021-08-03
CN110027188A (zh) 2019-07-19
EP3498450A1 (de) 2019-06-19

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