EP1286787A1 - Austragskopf und verfahren zum austrag von erstarrendem material - Google Patents

Austragskopf und verfahren zum austrag von erstarrendem material

Info

Publication number
EP1286787A1
EP1286787A1 EP00931732A EP00931732A EP1286787A1 EP 1286787 A1 EP1286787 A1 EP 1286787A1 EP 00931732 A EP00931732 A EP 00931732A EP 00931732 A EP00931732 A EP 00931732A EP 1286787 A1 EP1286787 A1 EP 1286787A1
Authority
EP
European Patent Office
Prior art keywords
dispensing head
annular passage
dispensing
drive
strands
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.)
Withdrawn
Application number
EP00931732A
Other languages
English (en)
French (fr)
Inventor
Frits Kornelis Feenstra
Steffi Finke
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.)
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Original Assignee
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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 Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO filed Critical Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Publication of EP1286787A1 publication Critical patent/EP1286787A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/36—Feeding the material on to the mould, core or other substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00523—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor

Definitions

  • Dispensing head and method for dispensing solidifying material Dispensing head and method for dispensing solidifying material.
  • the invention relates to a dispensing head for an apparatus for
  • heating means operatively associated with the
  • annular passage to form a liquifying zone for liquifying material in the
  • annular passage located between the input opening and the dispensing outlet
  • Such a dispensing head is known from EP 0 833 237 and is used for
  • a problem associated with the known dispensing head is that, in
  • the object of the invention is to provide a dispensing head of the
  • annular passage forms a continuous support
  • means provides for an increased material transport reliability, thereby preventing disturbance of the predetermined rate of flow due to leakage of
  • the drive elements can engage the strand when it is still solid.
  • the drive means comprise drive elements for engaging the strands of solid material, the drive elements being arranged to reach through corresponding apertures in the wall of the annular passage.
  • the drive means may also comprise e.g. a screw thread rotationally disposed on the inner wall of the annular passage at the drive zone.
  • the annular passage is at
  • the drive elements comprise drive wheels, which may be juxtaposed in radially opposite pairs for increased grip.
  • the drive means comprise two or more of such pairs which may be distributed
  • each drive wheel is driven.
  • the drive wheels have a common drive. It should be noted however, that the drive wheels can each be driven independently and that it is also possible to provide non-driven idler wheels.
  • the dispensing head comprises preheating
  • preheating means for preheating strands of solid material, the preheating means being
  • the metal can be heated in a controlled way, so that a preselected solid fraction can be obtained.
  • the solid fraction determines the
  • the invention further relates to a method of liquifying
  • dispensing solidifying material from a dispensing head as well as to an apparatus for making three-dimensional objects comprising a dispensing head.
  • fig. 1 shows a perspective view of a dispensing head
  • fig. 2 shows a perspective view of an apparatus for making three- dimensional physical objects using the FDM technique.
  • Fig. 1 shows a dispensing head for an apparatus for making three-
  • the dispensing head 1 comprises an annular passage 2 in the form of a canal with a circular cross section.
  • the annular passage 2 extends from a
  • the dispensing head 1 furthermore, to a dispensing outlet 4.
  • heating means 5 shown as a coil of wire forming an electrical
  • the coil is wrapped around the thin-walled tubular member
  • the dispensing head 1 further comprises drive means 7 for driving material through the annular passage 2.
  • the drive means 7 are integrated in the annular passage 2, such that they can
  • the drive means 7 comprise drive elements, in the
  • passage 2 sealingly surrounds the drive wheels 9.
  • the drive wheels 9 are disposed, to reach with a part of their
  • annular passage 2 is used to engage a strand 8 inserted through the receiving inlet 3 and extending into the annular passage 2 at its
  • the tread surface is provided with a profile, e.g. an
  • the drive wheels 9 are juxtaposed in radially opposite pairs relative to the central axis A of the annular passage 2. In the drawing, two pairs of .
  • the drive wheels may be rotationally coupled.
  • the drive wheels are made of metal, preferably hardened steel.
  • the tread surface 13 may be slightly convex to improve cooperation with the cilindrical
  • the liquifying zone L In the liquifying zone the solid strand 8 is liquified.
  • Preheating means 16 shown as an electrical wire resistance heater
  • phase and/or temperature for processing are phase and/or temperature for processing.
  • strands of numerous materials can be processed, including: PA (polyamide), polyesther
  • PET poly-buthene-terephtalate
  • PBTP poly-ethene-terephtalate
  • PETP polycarbonate
  • PC polycarbonate
  • ABS acrylonitrile-butadiene-styrene copolymer
  • ASA acrylonitrile styrene acrylic copolymer
  • SAN Styrene acrylonitrile copolymer
  • POM polyacetal
  • CA cellulose acetate
  • PMMA polymethyl-methacrylate
  • PPO polyphenyloxide
  • PPS polyphenylenesulfi.de
  • PSO polysulphone
  • PTFE polytetrafluorethylene
  • PES Polyethersulphone
  • PEEK polyether-ether-ketone
  • PMP polymethylpentene
  • PPE/PS polyphenylether+polystyrene
  • PI polyimide
  • PEI polyetherimide
  • PNC polyvinylchloride
  • PS polystyrene
  • PE polyolefins
  • PE, PP polyvinylydenefluoride
  • PNDF polyvinylydenefluoride
  • ETFE tetrafluorethene-ethene copolymer
  • watersoluble polymers poly aery la ide (PAA), polyethylene oxide (PEO), biopolymers, thermoplastic elastomers: polyesther, polyether or polyolefin
  • filled or grafted grades fillers such as glass, minerals, fibres, grafted with
  • the strands may be composed, e.g. be built up of different filaments or coaxial layers.
  • preheating means may also be used
  • preheating means need not be part of the dispensing head, but may be arranged on a different portion of the machine
  • an apparatus 20 is shown for making three- dimensional physical objects 21 of a predetermined shape by sequentially
  • apparatus 20 comprises the dispensing head 1 of fig. 1 and means for
  • the apparatus 20 further comprises a base member 22 disposed in working proximity to the dispensing outlet 3 of the dispensing head 1 and means for
  • the means for moving the dispensing head are shown as linear drives 23A, 23B and 23C in which the dispensing head 1 can be moved in the X, Y and Z direction respectively.
  • the apparatus 20 further comprises control means 24, e.g. a computer, for controlling the linear drives 23 and the drive means 7 of the dispensing head 1, such that the dispensing head 1 can
  • the base member 22 is preferably disposed in a working chamber 25
  • the working chamber 25 may
  • the temperature of the environment in the working chamber 25 may be controlled, e.g. using a
  • Such an additional driving zone D' may be provided. Such an additional driving zone D' may be provided.
  • the additional driving zone D' is provided on an input
  • the annular passage may provide support against buckling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Physical Vapour Deposition (AREA)
  • Nozzles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
EP00931732A 2000-05-19 2000-05-19 Austragskopf und verfahren zum austrag von erstarrendem material Withdrawn EP1286787A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2000/000345 WO2001089714A1 (en) 2000-05-19 2000-05-19 Dispensing head and method for dispensing solidifying material

Publications (1)

Publication Number Publication Date
EP1286787A1 true EP1286787A1 (de) 2003-03-05

Family

ID=19760691

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00931732A Withdrawn EP1286787A1 (de) 2000-05-19 2000-05-19 Austragskopf und verfahren zum austrag von erstarrendem material
EP00963138A Expired - Lifetime EP1286822B1 (de) 2000-05-19 2000-09-07 Fdm-verfahren und vorrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00963138A Expired - Lifetime EP1286822B1 (de) 2000-05-19 2000-09-07 Fdm-verfahren und vorrichtung

Country Status (7)

Country Link
EP (2) EP1286787A1 (de)
JP (2) JP2003534121A (de)
AT (1) ATE281924T1 (de)
AU (2) AU2000249562A1 (de)
CA (2) CA2411022A1 (de)
DE (1) DE60015813D1 (de)
WO (2) WO2001089714A1 (de)

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US7897074B2 (en) * 2008-04-30 2011-03-01 Stratasys, Inc. Liquefier assembly for use in extrusion-based digital manufacturing systems
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Also Published As

Publication number Publication date
WO2001089814A1 (en) 2001-11-29
AU2000249562A1 (en) 2001-12-03
CA2411025A1 (en) 2001-11-29
WO2001089714A1 (en) 2001-11-29
EP1286822B1 (de) 2004-11-10
DE60015813D1 (de) 2004-12-16
CA2411022A1 (en) 2001-11-29
JP2003534159A (ja) 2003-11-18
JP2003534121A (ja) 2003-11-18
AU2000274589A1 (en) 2001-12-03
EP1286822A1 (de) 2003-03-05
ATE281924T1 (de) 2004-11-15

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