AT524081A5 - Schnecke für eine Spritzgießmaschine zum Schaumgießen und Spritzgießmaschine - Google Patents

Schnecke für eine Spritzgießmaschine zum Schaumgießen und Spritzgießmaschine Download PDF

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Publication number
AT524081A5
AT524081A5 ATA9349/2019A AT93492019A AT524081A5 AT 524081 A5 AT524081 A5 AT 524081A5 AT 93492019 A AT93492019 A AT 93492019A AT 524081 A5 AT524081 A5 AT 524081A5
Authority
AT
Austria
Prior art keywords
injection molding
molding machine
screw
section
flight
Prior art date
Application number
ATA9349/2019A
Other languages
English (en)
Other versions
AT524081B1 (de
AT524081A2 (de
Inventor
Naito Akihiro
Araki Katsuyuki
Tamada Koichi
Uezono Hiromasa
Nakashima Hideaki
Original Assignee
Japan Steel Works Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=69644202&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AT524081(A5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Publication of AT524081A2 publication Critical patent/AT524081A2/de
Publication of AT524081A5 publication Critical patent/AT524081A5/de
Application granted granted Critical
Publication of AT524081B1 publication Critical patent/AT524081B1/de

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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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/422—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum by injecting by forward movement of the plastizising 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent
    • B29C44/3449—Feeding the blowing agent through the 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent
    • B29C44/3453—Feeding the blowing agent to solid plastic 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/35—Component parts; Details or accessories
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/424—Details of machines
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/424—Details of machines
    • B29C44/425—Valve or nozzle constructions; Details of injection 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/52—Non-return 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

Gegenstand der Erfindung ist eine Schnecke (3) für eine Spritzgießmaschine (1), in der ein Heizzylinder (2) mit einem ersten Kompressionsabschnitt (5), einem Druckverminderungsabschnitt (6) und einem zweiten Kompressionsabschnitt (7) versehen ist, und in der ein Edelgas in den Druckverminderungsabschnitt (6) eingeführt wird. Gemäß der Erfindung ist an einem dem ersten Kompressionsabschnitt (5) entsprechenden Teil der Schnecke (3) ein Barrieresteg (13) als ein doppelter Steg, der eine Kombination aus einem Hauptsteg (14) und einem Nebensteg (15) mit einem größeren Steigungswinkel als der Hauptsteg (14) umfasst, ausgebildet und ist ein ringförmiger Dammsteg (18) mit einer vorbestimmten Breite stromabwärts von, d.h. vor dem Barrieresteg (13) ausgebildet. Ein Abdichtungsaufbau (20) zur Verhinderung eines Rückflusses des Kunstharzes kann zwischen dem Dammsteg (18) und dem Druckverminderungsabschnitt (6) vorgesehen sein.
ATA9349/2019A 2018-08-27 2019-08-23 Schnecke für eine Spritzgießmaschine zum Schaumgießen und Spritzgießmaschine AT524081B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018158759A JP6762679B2 (ja) 2018-08-27 2018-08-27 発泡成形用の射出成形機のスクリュおよび射出成形機
PCT/JP2019/032977 WO2020045265A1 (ja) 2018-08-27 2019-08-23 発泡成形用の射出成形機のスクリュおよび射出成形機

Publications (3)

Publication Number Publication Date
AT524081A2 AT524081A2 (de) 2022-02-15
AT524081A5 true AT524081A5 (de) 2022-04-15
AT524081B1 AT524081B1 (de) 2022-07-15

Family

ID=69644202

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA9349/2019A AT524081B1 (de) 2018-08-27 2019-08-23 Schnecke für eine Spritzgießmaschine zum Schaumgießen und Spritzgießmaschine

Country Status (8)

Country Link
US (1) US11504891B2 (de)
JP (1) JP6762679B2 (de)
KR (1) KR20210042923A (de)
CN (1) CN112601647B (de)
AT (1) AT524081B1 (de)
DE (1) DE112019004310T5 (de)
TW (1) TWI773919B (de)
WO (1) WO2020045265A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6758790B2 (ja) * 2019-01-11 2020-09-23 株式会社日本製鋼所 発泡成形用の射出成形機のスクリュおよび射出成形機
CN113370489B (zh) * 2021-07-12 2022-03-04 苏州金韦尔机械有限公司 带有旋水腔螺杆挤出机
EP4197735A1 (de) * 2021-12-20 2023-06-21 Henkel AG & Co. KGaA Verfahren zum vorzugsweise diskontinuierlichen ausdosieren eines geschäumten oder aufschäumbaren kunststoffes mit direkter gasbeladung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003103587A (ja) * 2001-10-02 2003-04-09 Mitsubishi Heavy Ind Ltd 可塑化装置及び可塑化装置内へのガス注入方法
JP2003117973A (ja) * 2001-10-17 2003-04-23 Mitsubishi Heavy Ind Ltd 樹脂可塑化スクリュ
JP2007054995A (ja) * 2005-08-23 2007-03-08 Ube Machinery Corporation Ltd 射出装置
JP2008272999A (ja) * 2007-04-27 2008-11-13 Sekisui Chem Co Ltd 塩化ビニル系樹脂発泡成形機におけるスクリュー
WO2017007032A1 (ja) * 2015-07-08 2017-01-12 日立マクセル株式会社 発泡成形体の製造方法及び製造装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812731A (ja) 1981-07-16 1983-01-24 Sekisui Plastics Co Ltd 発泡成形装置
JPH06211664A (ja) 1993-01-20 1994-08-02 Pola Chem Ind Inc 薬剤に対する感受性回復剤
EP1166991B1 (de) 2000-06-22 2006-02-22 Mitsui Chemicals, Inc. Verfahren, Vorrichtung und Zusammensetzung zum Spritzgiessen von Schaum
JP4233240B2 (ja) 2000-06-22 2009-03-04 三井化学株式会社 射出発泡成形方法、並びにそれに適した射出成形機および樹脂組成物
JP4047107B2 (ja) 2002-09-05 2008-02-13 宇部興産機械株式会社 発泡体射出成形用スクリュ
US8057726B2 (en) * 2008-06-19 2011-11-15 Grupo Petrotemex, S.A. De C.V. Screw designs having improved performance with low melting PET resins
JP5710813B1 (ja) * 2014-03-05 2015-04-30 株式会社日本製鋼所 射出成形機のスクリュおよび射出成形機
CN107206651B (zh) 2015-01-15 2020-04-21 宇菱塑胶科技有限公司 注射成型机及注射成型方法
CN107107424B (zh) * 2015-01-16 2019-10-18 宇菱塑胶科技有限公司 注射成型方法、注射成型机的螺杆以及注射成型机
WO2017159166A1 (ja) * 2016-03-15 2017-09-21 日立マクセル株式会社 発泡成形体の製造方法及び製造装置
JP6211664B1 (ja) * 2016-10-05 2017-10-11 株式会社日本製鋼所 射出成形機のスクリュおよび射出成形機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003103587A (ja) * 2001-10-02 2003-04-09 Mitsubishi Heavy Ind Ltd 可塑化装置及び可塑化装置内へのガス注入方法
JP2003117973A (ja) * 2001-10-17 2003-04-23 Mitsubishi Heavy Ind Ltd 樹脂可塑化スクリュ
JP2007054995A (ja) * 2005-08-23 2007-03-08 Ube Machinery Corporation Ltd 射出装置
JP2008272999A (ja) * 2007-04-27 2008-11-13 Sekisui Chem Co Ltd 塩化ビニル系樹脂発泡成形機におけるスクリュー
WO2017007032A1 (ja) * 2015-07-08 2017-01-12 日立マクセル株式会社 発泡成形体の製造方法及び製造装置

Also Published As

Publication number Publication date
CN112601647B (zh) 2023-03-28
TW202017727A (zh) 2020-05-16
JP6762679B2 (ja) 2020-09-30
US11504891B2 (en) 2022-11-22
WO2020045265A1 (ja) 2020-03-05
KR20210042923A (ko) 2021-04-20
AT524081B1 (de) 2022-07-15
JP2020032547A (ja) 2020-03-05
CN112601647A (zh) 2021-04-02
DE112019004310T5 (de) 2021-06-17
AT524081A2 (de) 2022-02-15
US20210178648A1 (en) 2021-06-17
TWI773919B (zh) 2022-08-11

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