BRPI0511883A - método de moldagem por injeção e aparelho de moldagem por injeção - Google Patents

método de moldagem por injeção e aparelho de moldagem por injeção

Info

Publication number
BRPI0511883A
BRPI0511883A BRPI0511883-2A BRPI0511883A BRPI0511883A BR PI0511883 A BRPI0511883 A BR PI0511883A BR PI0511883 A BRPI0511883 A BR PI0511883A BR PI0511883 A BRPI0511883 A BR PI0511883A
Authority
BR
Brazil
Prior art keywords
injection molding
pressure
injection
fluid
molding method
Prior art date
Application number
BRPI0511883-2A
Other languages
English (en)
Inventor
Hiroshi Uchida
Tadayoshi Takahara
Tomoaki Eto
Original Assignee
Toyota Motor Co 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
Application filed by Toyota Motor Co Ltd filed Critical Toyota Motor Co Ltd
Publication of BRPI0511883A publication Critical patent/BRPI0511883A/pt
Publication of BRPI0511883B1 publication Critical patent/BRPI0511883B1/pt

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
    • 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
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/174—Applying a pressurised fluid to the outer surface of the injected material inside the mould cavity, e.g. for preventing shrinkage marks
    • 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
    • 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
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • 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
    • B29C45/26—Moulds
    • B29C45/2628—Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing cages
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/43—Removing or ejecting moulded articles using fluid under 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
    • 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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Materials For Medical Uses (AREA)

Abstract

MéTODO DE MOLDAGEM POR INJEçãO E APARELHO DE MOLDAGEM POR INJEçãO. A presente invenção refere-se a um método de moldagem por injeção que usa um molde por injeção. O método compreende (1) uma etapa de injeção de resina moetana para injetar a resina moetana a partir de um portão para dentro de uma cavidade, (2) uma etapa de manter a pressão para aplicar pressão, de forma continua, a partir do portão depois da etapa de injeção de resina moetana, e (3) uma etapa de injeção de fluido para injetar um fluido em direção à superfície posterior do produto moldado. A etapa de manter a pressão e a etapa de injeção de fluido são executadas simultaneamente. Ao executar de maneira simultânea essas duas etapas, pode-se diminuir a pressão, que deve ser aplicada continuamente a partir do portão. O presente método de moldagem por injeção pode encolher a pressão do fluido a ser injetado em direção à superfície posterior do produto moldado, a fim de fazer com que a superfície posterior do produto moldado se separe da superfície de cavidade.
BRPI0511883-2A 2004-06-08 2005-06-06 método de moldagem por injeção e aparelho de moldagem por injeção BRPI0511883B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2004170400 2004-06-08
JP2004-170400 2004-06-08
JP2004373751A JP3838372B2 (ja) 2004-06-08 2004-12-24 射出成形方法と射出成形装置
JP2004-373751 2004-12-24
PCT/JP2005/010735 WO2005120800A1 (en) 2004-06-08 2005-06-06 Injection molding method and injection molding apparatus

Publications (2)

Publication Number Publication Date
BRPI0511883A true BRPI0511883A (pt) 2008-01-15
BRPI0511883B1 BRPI0511883B1 (pt) 2015-09-08

Family

ID=34971341

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0511883-2A BRPI0511883B1 (pt) 2004-06-08 2005-06-06 método de moldagem por injeção e aparelho de moldagem por injeção

Country Status (16)

Country Link
US (1) US7582250B2 (pt)
EP (1) EP1771288B1 (pt)
JP (1) JP3838372B2 (pt)
KR (1) KR100841032B1 (pt)
CN (1) CN1964829B (pt)
AT (1) ATE452738T1 (pt)
AU (1) AU2005252100B2 (pt)
BR (1) BRPI0511883B1 (pt)
CA (1) CA2566939C (pt)
DE (1) DE602005018486D1 (pt)
ES (1) ES2335784T3 (pt)
MX (1) MXPA06013833A (pt)
PT (1) PT1771288E (pt)
RU (1) RU2344039C2 (pt)
TW (1) TWI295962B (pt)
WO (1) WO2005120800A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7935293B2 (en) * 2005-11-30 2011-05-03 Toyoda Gosei Co., Ltd. Injection molding method and injection molding apparatus
JP4650240B2 (ja) * 2005-11-30 2011-03-16 豊田合成株式会社 射出成形方法及び射出成形装置
JP4779863B2 (ja) * 2006-08-08 2011-09-28 トヨタ自動車株式会社 射出成形のシュミレーションコンピュータ等
JP4579898B2 (ja) * 2006-12-25 2010-11-10 本田技研工業株式会社 成形方法および成形装置
JP5751043B2 (ja) * 2011-06-20 2015-07-22 日産自動車株式会社 射出成形方法
EP2768041B1 (en) * 2011-10-11 2016-05-18 Nissan Motor Co., Ltd. Fabrication method for laminated-type secondary battery
KR101945890B1 (ko) * 2011-12-30 2019-02-12 삼성전자주식회사 디스플레이 장치
KR101992701B1 (ko) * 2014-11-04 2019-06-25 야수히로 스즈키 금형장치, 사출성형시스템, 성형품의 제조 방법
CN107972235A (zh) * 2017-11-29 2018-05-01 深圳市华益盛模具股份有限公司 一种注塑模具及其注塑成型方法
CN108746606B (zh) * 2018-07-11 2023-11-21 江苏普隆磁电有限公司 一种烧结钕铁硼永磁体的成型模具
KR102214656B1 (ko) * 2020-09-04 2021-02-10 김순희 반도체칩 보호막 형성용 몰드 내 충진제 주입 방법
JP7625937B2 (ja) * 2021-03-30 2025-02-04 トヨタ自動車株式会社 射出成形機、積層造形装置及び圧力制御方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9114324D0 (en) * 1991-07-03 1991-08-21 Kontor Moulding Systems Ltd Injection moulding of thermoplastic polymers
US6403014B1 (en) * 1992-03-23 2002-06-11 Incoe Corporation Method for fluid compression of injection molded plastic material
JPH06246797A (ja) * 1992-12-28 1994-09-06 Nippon Steel Chem Co Ltd 成形品外観へのヒケ防止方法および射出成形用金型
WO1996002379A1 (en) * 1994-07-15 1996-02-01 Asahi Kasei Kogyo Kabushiki Kaisha Method for the non-resin fluid-assisted injection molding of a resin
JPH1058493A (ja) 1996-08-20 1998-03-03 Sony Corp 合成樹脂成形品の射出成形方法及び金型
US5972276A (en) * 1996-10-04 1999-10-26 Asahi Kasei Kogyo Kabushiki Kaisha Method for the injection molding of a resin
US6287504B1 (en) * 1997-04-01 2001-09-11 Ricoh Company, Ltd. Plastic molding and method and apparatus for producing the same by injection molding
DE19746827C2 (de) * 1997-10-23 2001-08-16 Battenfeld Gmbh Verfahren zum Spritzgießen von Kunststoffgegenständen mittels Druckfluid
JP4108269B2 (ja) * 2000-12-07 2008-06-25 株式会社リコー 樹脂成形装置及び樹脂成型方法

Also Published As

Publication number Publication date
DE602005018486D1 (de) 2010-02-04
RU2006139718A (ru) 2008-06-10
AU2005252100B2 (en) 2008-05-29
MXPA06013833A (es) 2007-03-26
WO2005120800A1 (en) 2005-12-22
PT1771288E (pt) 2010-01-12
JP3838372B2 (ja) 2006-10-25
AU2005252100A1 (en) 2005-12-22
KR100841032B1 (ko) 2008-06-24
CN1964829A (zh) 2007-05-16
CA2566939A1 (en) 2005-12-22
EP1771288A1 (en) 2007-04-11
JP2006021520A (ja) 2006-01-26
TW200603981A (en) 2006-02-01
CA2566939C (en) 2011-04-26
EP1771288B1 (en) 2009-12-23
CN1964829B (zh) 2011-01-05
US7582250B2 (en) 2009-09-01
US20070182066A1 (en) 2007-08-09
TWI295962B (en) 2008-04-21
ATE452738T1 (de) 2010-01-15
ES2335784T3 (es) 2010-04-05
KR20070029243A (ko) 2007-03-13
RU2344039C2 (ru) 2009-01-20
BRPI0511883B1 (pt) 2015-09-08

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B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B15K Others concerning applications: alteration of classification

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Ipc: B29C 45/17 (2006.01), B29C 45/00 (2006.01), B29C 4

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 08/09/2025