MX9700097A - Molde con compuerta anular para el moldeo por inyeccion de lentes de contacto. - Google Patents
Molde con compuerta anular para el moldeo por inyeccion de lentes de contacto.Info
- Publication number
- MX9700097A MX9700097A MX9700097A MX9700097A MX9700097A MX 9700097 A MX9700097 A MX 9700097A MX 9700097 A MX9700097 A MX 9700097A MX 9700097 A MX9700097 A MX 9700097A MX 9700097 A MX9700097 A MX 9700097A
- Authority
- MX
- Mexico
- Prior art keywords
- mold cavity
- polymer
- contact lenses
- annular
- injection molding
- Prior art date
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
- B29C45/38—Cutting-off equipment for sprues or ingates
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Eyeglasses (AREA)
Abstract
Se describe un método y aparato para la fabricacion de lentes de contactos poliméricos opticos en un molde cerrado, en donde una cavidad de molde se crea entre un inserto curvo anterior y un inserto curvo posterior, las paredes laterales de la cavidad de molde siendo formadas por la pared interna de un collarín de compuesta anular movible, el collarín siendo colocado en una posicion retraída durante la dosificacion del polímero y después movida antes de la curacion del polímero hacia una posicion extendida para completar la cavidad del molde y para separar el polímero que se está curando dentro de la cavidad del molde de cualquier polímero de desecho fuera de la cavidad del molde.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/576,743 US5928682A (en) | 1995-12-21 | 1995-12-21 | Annular gated mold for the injection molding of contact lenses |
US08576743 | 1995-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
MXPA97000097A MXPA97000097A (es) | 1997-06-01 |
MX9700097A true MX9700097A (es) | 1997-06-28 |
Family
ID=24305807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9700097A MX9700097A (es) | 1995-12-21 | 1997-01-07 | Molde con compuerta anular para el moldeo por inyeccion de lentes de contacto. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5928682A (es) |
EP (1) | EP0780215B1 (es) |
JP (1) | JPH09174609A (es) |
AT (1) | ATE201628T1 (es) |
AU (1) | AU716637B2 (es) |
CA (1) | CA2193450C (es) |
DE (1) | DE69613088T2 (es) |
MX (1) | MX9700097A (es) |
SG (1) | SG89243A1 (es) |
TW (1) | TW400448B (es) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4544710B2 (ja) * | 1999-08-27 | 2010-09-15 | 株式会社メニコン | 眼用レンズ物品の成形型及び眼用レンズ物品の製造方法 |
EP1226924B1 (en) * | 2001-01-24 | 2006-02-15 | Novartis AG | Lens Manufacturing Process |
US20030078658A1 (en) | 2001-01-25 | 2003-04-24 | Gholam-Reza Zadno-Azizi | Single-piece accomodating intraocular lens system |
US6708397B2 (en) | 2001-08-09 | 2004-03-23 | Johnson & Johnson Vision Care, Inc. | Inlay station with alignment assemblies and transfer tubes |
US6939500B2 (en) * | 2001-08-30 | 2005-09-06 | Bernard Mould | Method and apparatus for eliminating a parting line witness mark from a molded part |
US7615180B2 (en) * | 2005-07-08 | 2009-11-10 | Gentex Optics, Inc. | Method for injection molding with direct insert thermal control |
CN101808795B (zh) * | 2007-10-05 | 2013-08-14 | 日本碍子株式会社 | 成型模具及成型方法 |
CN101544034A (zh) * | 2008-03-28 | 2009-09-30 | 鸿富锦精密工业(深圳)有限公司 | 模具定位结构 |
DK2501716T3 (en) | 2009-11-19 | 2015-04-07 | Solis Biodyne Oü | Formations to increase polypeptidstabilitet and activity and related practices |
HUE039910T2 (hu) * | 2009-12-17 | 2019-02-28 | Novartis Ag | Eljárás és berendezés lencseképzõ anyag szerszámba adagolására |
CN103831955B (zh) * | 2012-11-22 | 2016-01-13 | 深圳市壹零壹精密设备有限公司 | 水口剪切设备 |
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 |
US10029402B2 (en) | 2014-12-19 | 2018-07-24 | Coopervision International Holding Company, Lp | Method and apparatus for manufacturing 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 |
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 |
US10786959B2 (en) * | 2016-07-18 | 2020-09-29 | Johnson & Johnson Vision Care, Inc | Mold for contact lens with non-rotationally symmetric rim or edge |
CN111907008B (zh) * | 2020-08-04 | 2022-03-04 | 勇气模具塑胶(苏州)有限公司 | 一种塑胶模具 |
CN115816765B (zh) * | 2022-11-01 | 2023-06-13 | 南京肯特复合材料股份有限公司 | 一种无气纹的pfa包覆蝶板的成型方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2304217A (en) * | 1938-01-20 | 1942-12-08 | American Optical Corp | Method and apparatus for making lenses |
US4407766A (en) * | 1981-05-26 | 1983-10-04 | National Patent Development Corporation | Molds and procedure for producing truncated contact lenses |
FR2530181A1 (fr) * | 1982-07-16 | 1984-01-20 | Essilor Int | Procede et dispositif pour le moulage d'un element optique en matiere synthetique |
US4622089A (en) * | 1983-02-28 | 1986-11-11 | Johnson & Johnson Products, Inc. | Method of making blister pad adhesive bandage |
JPS60132719A (ja) * | 1983-12-22 | 1985-07-15 | Alps Electric Co Ltd | プラスチツクレンズの製造方法 |
US4836960A (en) * | 1987-10-05 | 1989-06-06 | Sola Usa, Inc. | Fabrication of thermoplastic optical components by injection/compression molding |
US5182065A (en) * | 1990-04-30 | 1993-01-26 | Ontario Die Company Limited | Method for producing structural injection molded parts using lost motion movement between a mold and surrounding cutting blade |
IT1252217B (it) * | 1991-12-16 | 1995-06-05 | Devi Spa | Procedimento e macchina per lo stampaggio di materiale plastico accoppiato. |
US5405557A (en) * | 1993-04-21 | 1995-04-11 | Sola Group Ltd. | Method of making a moulded photochromic lens |
JPH07299845A (ja) * | 1994-04-28 | 1995-11-14 | Olympus Optical Co Ltd | ゲートカット装置 |
-
1995
- 1995-12-21 US US08/576,743 patent/US5928682A/en not_active Expired - Lifetime
-
1996
- 1996-12-13 TW TW085115383A patent/TW400448B/zh not_active IP Right Cessation
- 1996-12-18 AU AU75451/96A patent/AU716637B2/en not_active Expired
- 1996-12-19 CA CA002193450A patent/CA2193450C/en not_active Expired - Lifetime
- 1996-12-20 JP JP8354712A patent/JPH09174609A/ja active Pending
- 1996-12-20 DE DE69613088T patent/DE69613088T2/de not_active Expired - Lifetime
- 1996-12-20 SG SG9611870A patent/SG89243A1/en unknown
- 1996-12-20 AT AT96309385T patent/ATE201628T1/de not_active IP Right Cessation
- 1996-12-20 EP EP96309385A patent/EP0780215B1/en not_active Expired - Lifetime
-
1997
- 1997-01-07 MX MX9700097A patent/MX9700097A/es unknown
Also Published As
Publication number | Publication date |
---|---|
SG89243A1 (en) | 2002-06-18 |
AU7545196A (en) | 1997-06-26 |
DE69613088T2 (de) | 2001-10-18 |
EP0780215B1 (en) | 2001-05-30 |
AU716637B2 (en) | 2000-03-02 |
CA2193450A1 (en) | 1997-06-22 |
TW400448B (en) | 2000-08-01 |
JPH09174609A (ja) | 1997-07-08 |
CA2193450C (en) | 2005-05-24 |
EP0780215A2 (en) | 1997-06-25 |
US5928682A (en) | 1999-07-27 |
DE69613088D1 (de) | 2001-07-05 |
ATE201628T1 (de) | 2001-06-15 |
EP0780215A3 (en) | 1997-10-15 |
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