CU22989A3 - Método para moldear un recipiente termoplástico - Google Patents

Método para moldear un recipiente termoplástico

Info

Publication number
CU22989A3
CU22989A3 CU1997137A CU1997137A CU22989A3 CU 22989 A3 CU22989 A3 CU 22989A3 CU 1997137 A CU1997137 A CU 1997137A CU 1997137 A CU1997137 A CU 1997137A CU 22989 A3 CU22989 A3 CU 22989A3
Authority
CU
Cuba
Prior art keywords
container
mold
approximately
temperature
core
Prior art date
Application number
CU1997137A
Other languages
English (en)
Inventor
Jose F Ballester
Original Assignee
Fortiflex Inc
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 Fortiflex Inc filed Critical Fortiflex Inc
Publication of CU22989A3 publication Critical patent/CU22989A3/es

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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
    • 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
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/058—Undercut

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Un miembro macho tiene un núcleo cilíndrico con una muneca interna desplazada por presión de aire para abrir un pasaje de aire para aire bajo presión hasta un extremo de la muneca. La cavidad hembra y la muneca forman una pared de fondo de recipiente. Se inyecta un copolímero termoplástico de polietileno en el molde a una temperatura de aproximadamente 243.3 s C, el molde tiene una temperatura superficial de aproximadamente 37.7 - 54.4 s C y el material plástico tiene una temperatura de aproximadamente 54.4 - 71.1s C al momento de la eyección del recipiente del molde. Se forman costillas en el reborde de recipiente que tienen una profundidad tal que provocan que el recipiente se estire en aproximadamente 6 % cuando se remueve del núcleo. Los bordes externos de las costillas son coextensivos con la pared lateral del recipiente. Se forma un labio de enganchamiento de tapa en el borde de reborde de recipiente. El proceso tiene un tiempo de ciclo preferido de 14 segundos y emplea un núcleo sin corriente. La superficie de moldeo se mantiene a la temperatura deseada por medio de un circuito de agua de enfriamiento en el molde.
CU1997137A 1996-12-05 1997-12-05 Método para moldear un recipiente termoplástico CU22989A3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/760,488 US5824256A (en) 1996-12-05 1996-12-05 Method of molding a thermoplastic container

Publications (1)

Publication Number Publication Date
CU22989A3 true CU22989A3 (es) 2004-09-29

Family

ID=25059251

Family Applications (1)

Application Number Title Priority Date Filing Date
CU1997137A CU22989A3 (es) 1996-12-05 1997-12-05 Método para moldear un recipiente termoplástico

Country Status (2)

Country Link
US (1) US5824256A (es)
CU (1) CU22989A3 (es)

Families Citing this family (19)

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Publication number Priority date Publication date Assignee Title
US6210624B1 (en) * 1994-06-20 2001-04-03 Critical Device Corporation Method of forming a reseal element for a needleless injection site
US5932164A (en) * 1996-12-31 1999-08-03 Logic Corporation Process for injection molding with incremental initial ejection
US6332997B1 (en) * 1998-05-26 2001-12-25 Hardigg Industries Inc. Method and apparatus for making a one piece battery jar
US6426030B1 (en) * 1999-11-15 2002-07-30 Rexam Medical Packaging Inc. Method of making a molded internally threaded closure
IT1320350B1 (it) * 2000-05-12 2003-11-26 Crs Srl Ct Ricerche & Sperimen Procedimento ed attrezzatura per lo stampaggio a termocompressione diarticoli di materiale termoplastico.
JP3944382B2 (ja) * 2000-12-27 2007-07-11 株式会社ジェイテクト ウォームホイール、その成形方法及び成形装置
US7104774B2 (en) * 2004-03-17 2006-09-12 D-M-E Company Mold assembly
US7326045B2 (en) * 2004-04-05 2008-02-05 Top Grade Molds Ltd. System for releasing molded part from entrapping core rings
US7313895B2 (en) * 2004-07-20 2008-01-01 Tetra Laval Holdings & Finance, Sa Molding unit for forming direct injection molded closures
US7320587B2 (en) * 2005-08-09 2008-01-22 Cooper Vision, Inc. Contact lens molds and systems and methods for producing same
JP4141471B2 (ja) * 2005-12-19 2008-08-27 神奈川精機株式会社 射出成形用金型装置
US8413837B2 (en) * 2007-10-31 2013-04-09 Simple Wave Llc Enhanced serving apparatus
NL2002634C2 (en) * 2009-03-17 2010-09-20 Soederhuizen Kunststoffen B V PLASTIC CONTAINER.
ES2371731B1 (es) * 2010-06-11 2012-05-28 Irumold S.L. Molde para piezas inyectadas con contrasalidas internas.
JP2012223988A (ja) * 2011-04-20 2012-11-15 Olympus Corp ドーム型の射出成形品の射出成形型とそのドーム型射出成形品
US20130025559A1 (en) * 2011-06-10 2013-01-31 Honda Motor Co., Ltd. High pressure die casting flash containment system
US9545747B2 (en) * 2013-02-03 2017-01-17 Mann+Hummel Gmbh System for injection molding and related method
FR3020979B1 (fr) * 2014-05-16 2016-05-20 Eos Moule de fabrication pour gaine d'habillage et procede associe
DE102016121594A1 (de) * 2016-11-10 2018-05-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur verbesserung der oberflächenqualität generativ hergestellter bauteile

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921343A (en) * 1957-05-13 1960-01-19 Owens Illinois Glass Co Method of producing a component of a liquid dispenser
US3325576A (en) * 1964-02-03 1967-06-13 Kessler Milton Method of making unitary plastic sealing cap
US3977563A (en) * 1975-06-30 1976-08-31 Hercules Incorporated Container-lid interlock
US4125246A (en) * 1976-11-05 1978-11-14 Holdt J W Von Pivot assembly mold apparatus
US4383819A (en) * 1980-07-16 1983-05-17 Letica Corporation Apparatus for forming a container
US4521367A (en) * 1981-11-16 1985-06-04 Underwood J Larry Mold, process of molding, and article molded by such process
US4552328A (en) * 1984-01-05 1985-11-12 Sun Coast Plastics, Inc. Mold for making tamper-proof closure
US4676732A (en) * 1985-09-26 1987-06-30 Letica Corporation Molding apparatus
US4777004A (en) * 1985-10-09 1988-10-11 Galer Herbert W Apparatus and method for molding plastic paint cans
US5340304A (en) * 1991-04-26 1994-08-23 Nissei Asb Machine Co., Ltd. Mold for injection molding preform with undercut lip

Also Published As

Publication number Publication date
MX9709227A (es) 1998-09-30
US5824256A (en) 1998-10-20

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