ZA954815B - Mold separation method and apparatus - Google Patents

Mold separation method and apparatus

Info

Publication number
ZA954815B
ZA954815B ZA954815A ZA954815A ZA954815B ZA 954815 B ZA954815 B ZA 954815B ZA 954815 A ZA954815 A ZA 954815A ZA 954815 A ZA954815 A ZA 954815A ZA 954815 B ZA954815 B ZA 954815B
Authority
ZA
South Africa
Prior art keywords
separation method
mold separation
steam
provides
contact lens
Prior art date
Application number
ZA954815A
Other languages
English (en)
Inventor
Ture Kindt-Larsen
Stephen Robert Beaton
Wallace Anthony Martin
Stephen Craig Pegram
Craig William Walker
Original Assignee
Johnson & Johnson Vision Prod
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 Johnson & Johnson Vision Prod filed Critical Johnson & Johnson Vision Prod
Publication of ZA954815B publication Critical patent/ZA954815B/xx

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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • B29C33/048—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam using steam
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/20—Opening, closing or clamping
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/46—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles using fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B29D11/00211—Demoulding, e.g. separating lenses from mould halves using heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B29D11/00221—Demoulding, e.g. separating lenses from mould halves using prying means
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0011—Moulds or cores; Details thereof or accessories therefor thin-walled moulds
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • B29C37/0007—Discharging moulded articles from the mould using means operable from outside the mould for moving between mould parts, e.g. robots
    • 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
    • Y10S425/06—Vacuum
    • 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
    • Y10S425/808—Lens mold

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Confectionery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
ZA954815A 1994-06-10 1995-06-09 Mold separation method and apparatus ZA954815B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/258,265 US5850107A (en) 1994-06-10 1994-06-10 Mold separation method and apparatus

Publications (1)

Publication Number Publication Date
ZA954815B true ZA954815B (en) 1996-12-09

Family

ID=22979815

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA954815A ZA954815B (en) 1994-06-10 1995-06-09 Mold separation method and apparatus

Country Status (11)

Country Link
US (2) US5850107A (fr)
EP (2) EP0988961B1 (fr)
JP (1) JP4004560B2 (fr)
AT (2) ATE231792T1 (fr)
AU (1) AU709042B2 (fr)
BR (1) BR9502749A (fr)
CA (1) CA2151360C (fr)
CZ (1) CZ147795A3 (fr)
DE (2) DE69529491T2 (fr)
IL (1) IL113825A0 (fr)
ZA (1) ZA954815B (fr)

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IT1293955B1 (it) * 1997-06-13 1999-03-11 Isap Omv Group Spa Dispositivo a piastra per il prelievo e l'allontanamento di una stampata di oggetti termoformati da una pressa di termoformatura
US20040112008A1 (en) 1998-12-21 2004-06-17 Voss Leslie A. Heat seal apparatus for lens packages
US20070157553A1 (en) * 1998-12-21 2007-07-12 Voss Leslie A Heat seal apparatus for lens packages
US20040074525A1 (en) * 2001-03-27 2004-04-22 Widman Michael F. Transfer apparatus and method and a transfer apparatus cleaner and method
US6494021B1 (en) 1999-02-18 2002-12-17 Johnson & Johnson Vision Care, Inc. Contact lens transfer and material removal system
US6638451B1 (en) * 1999-08-31 2003-10-28 Novartis Ag Plastic casting molds
USD458023S1 (en) 1999-10-13 2002-06-04 Johnson & Johnson Vision Care, Inc. Contact lens container
AU7922800A (en) † 1999-10-27 2001-05-08 Novartis Ag Deblocking contact lenses
US6368522B1 (en) 2000-01-03 2002-04-09 Johnson & Johnson Vision Care, Inc. Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture
US6473232B2 (en) * 2000-03-08 2002-10-29 Canon Kabushiki Kaisha Optical system having a diffractive optical element, and optical apparatus
US6558584B1 (en) 2000-03-31 2003-05-06 Bausch & Lomb Incorporated Apparatus and method for handling an ophthalmic lens
US6514436B1 (en) 2000-05-31 2003-02-04 Bausch & Lomb Incorporated Apparatus and method for clamping and releasing contact lens molds
ATE526135T1 (de) * 2001-03-26 2011-10-15 Novartis Ag Giessform und verfahren zur herstellung von opthalmischen linsen
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US6836692B2 (en) * 2001-08-09 2004-12-28 Johnson & Johnson Vision Care, Inc. System and method for intelligent lens transfer
US6708397B2 (en) 2001-08-09 2004-03-23 Johnson & Johnson Vision Care, Inc. Inlay station with alignment assemblies and transfer tubes
US7008570B2 (en) * 2001-08-09 2006-03-07 Stephen Pegram Method and apparatus for contact lens mold assembly
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US20050056955A1 (en) * 2003-08-18 2005-03-17 Axel Heinrich Demolding process
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US20060202367A1 (en) * 2005-03-11 2006-09-14 Knutzen Josef V Multi stage ophthalmic lens demold
US8601694B2 (en) 2008-06-13 2013-12-10 The Boeing Company Method for forming and installing stringers
US8557165B2 (en) * 2008-10-25 2013-10-15 The Boeing Company Forming highly contoured composite parts
US9102110B2 (en) * 2005-08-09 2015-08-11 Coopervision International Holding Company, Lp Systems and methods for removing lenses from lens molds
US7731873B2 (en) 2005-08-09 2010-06-08 Coopervision International Holding Company, Lp Contact lens mold assemblies and systems and methods of producing same
US7320587B2 (en) * 2005-08-09 2008-01-22 Cooper Vision, Inc. Contact lens molds and systems and methods for producing same
US7799249B2 (en) 2005-08-09 2010-09-21 Coopervision International Holding Company, Lp Systems and methods for producing silicone hydrogel contact lenses
US7655168B2 (en) 2006-01-31 2010-02-02 The Boeing Company Tools for manufacturing composite parts and methods for using such tools
US8231218B2 (en) 2006-06-15 2012-07-31 Coopervision International Holding Company, Lp Wettable silicone hydrogel contact lenses and related compositions and methods
CN101516610B (zh) * 2006-09-21 2012-09-05 诺瓦提斯公司 隐形眼镜的脱模方法
US8105070B2 (en) * 2006-12-21 2012-01-31 Bausch & Lomb Incorporated Apparatus and method for releasing a lens molded in a cavity between posterior and anterior mold sections
US8388795B2 (en) 2007-05-17 2013-03-05 The Boeing Company Nanotube-enhanced interlayers for composite structures
US8042767B2 (en) 2007-09-04 2011-10-25 The Boeing Company Composite fabric with rigid member structure
US20100109176A1 (en) 2008-11-03 2010-05-06 Chris Davison Machined lens molds and methods for making and using same
US8313675B2 (en) * 2009-08-31 2012-11-20 Coopervision International Holding Company, Lp Demolding of ophthalmic lenses during the manufacture thereof
WO2012064699A1 (fr) 2010-11-10 2012-05-18 Novartis Ag Procédé pour fabriquer des lentilles de contact
CN102529127B (zh) * 2011-12-13 2014-09-24 江西洪都航空工业集团有限责任公司 可调节有机玻璃退火整形架
DE102012017008B3 (de) * 2012-08-28 2013-11-21 Rodenstock Gmbh Verfahren zum Ablösen einer Gießform von einer Kunststofflinse
US9995855B2 (en) 2012-12-11 2018-06-12 Ev Group E. Thallner Gmbh Method and device for producing a lens wafer
US9938034B2 (en) 2014-12-19 2018-04-10 Coopervision International Holding Company, Lp Method and apparatus relating to manufacture of molds for forming contact lenses
US9764501B2 (en) 2014-12-19 2017-09-19 Coopervision International Holding Company, Lp Contact lens mold parts, contact lens mold assemblies, and methods of making contact lenses
US10029402B2 (en) 2014-12-19 2018-07-24 Coopervision International Holding Company, Lp Method and apparatus for manufacturing contact lenses
US10137612B2 (en) 2014-12-19 2018-11-27 Coopervision International Holding Company, Lp Methods and apparatus for manufacture of ophthalmic lenses
US9937640B2 (en) 2014-12-19 2018-04-10 Coopervision International Holding Company, Lp Apparatus and method for closure of ophthalmic lens molds
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MY193482A (en) * 2016-10-14 2022-10-17 Alcon Inc Method for producing contact lenses
TWM542615U (zh) * 2017-03-10 2017-06-01 Xin-Bo Huang 具高低壓吹氣分離的真空吸取裝置
US10967544B2 (en) * 2017-12-01 2021-04-06 Himax Technologies Limited Mold separation device and separation method thereof
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Also Published As

Publication number Publication date
EP0686490A2 (fr) 1995-12-13
JPH08174700A (ja) 1996-07-09
US5690973A (en) 1997-11-25
EP0988961A3 (fr) 2002-04-10
AU709042B2 (en) 1999-08-19
US5850107A (en) 1998-12-15
BR9502749A (pt) 1996-03-12
EP0686490A3 (fr) 1997-04-23
CA2151360A1 (fr) 1995-12-11
EP0686490B1 (fr) 2003-01-29
DE69529491T2 (de) 2003-10-30
ATE231792T1 (de) 2003-02-15
DE69531562T2 (de) 2004-06-17
JP4004560B2 (ja) 2007-11-07
DE69529491D1 (de) 2003-03-06
IL113825A0 (en) 1995-08-31
EP0988961B1 (fr) 2003-08-20
EP0988961A2 (fr) 2000-03-29
CZ147795A3 (en) 1996-08-14
CA2151360C (fr) 2008-07-29
DE69531562D1 (de) 2003-09-25
AU2056695A (en) 1995-12-21
ATE247549T1 (de) 2003-09-15

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