MX9702424A - Desmoldeo de ensambles de molde de lente colado, mediante cuña. - Google Patents
Desmoldeo de ensambles de molde de lente colado, mediante cuña.Info
- Publication number
- MX9702424A MX9702424A MX9702424A MX9702424A MX9702424A MX 9702424 A MX9702424 A MX 9702424A MX 9702424 A MX9702424 A MX 9702424A MX 9702424 A MX9702424 A MX 9702424A MX 9702424 A MX9702424 A MX 9702424A
- Authority
- MX
- Mexico
- Prior art keywords
- mold
- wedge
- separating
- support pallet
- frontcurve
- Prior art date
Links
Classifications
-
- 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
- B29C31/006—Handling moulds, e.g. between a mould store and a moulding machine
-
- 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
- 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
- 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
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- 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)
- Robotics (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Eyeglasses (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Un aparato de desmoldeo para separar mecánicamente de manera confiable y repetida ensambles de molde de lentes de contacto sin dañar el lente de contacto formado entre los mismos. El ensamble de molde incluye un molde de curva frontal que tiene una seccion central de molde con una pestaña circundante, y el molde correspondiente de curva posterior que tiene también una seccion central de molde con una pestaña circundante, con un lente de contacto que se moldea entre los mismos. Se provee una paleta de soporte para soportar el ensamble de molde. Un dispositivo separador de cuña provee por lo menos una cuña separadora colocada entre las pestañas separadas al dispositivo separador de cuña y a la paleta de soporte uno respecto a otro para separar progresivamente el molde de curva frontal y el molde de curva posterior. En una modalidad se monta estacionariamente el dispositivo separador de cuña suspendido arriba de la paleta de soporte, y un mecanismo conduce la paleta de soporte respecto al dispositivo separador de cuña montado estacionariamente a una posicion en la cual se coloca la cuña separadora entre las pestañas separadas del ensamble de molde y separa o desmoldea los moldes de curva frontal y de curva posterior. En varias modalidades preferidas, la paleta de soporte soporta los ensambles de molde en disposicion n x m. En modalidades alternativas, el dispositivo separador de cuña puede incluir una cuña separadora para cada hilera para la disposicion n x m, o dos cuñas separadoras para cada hilera, colocada una a cada lado de la hilera. En modalidades alternativas, la disposicion n x m en los ensambles de molde puede incluir una estructura de molde que interconecte una disposicion n x m de moldes de curva frontal, una disposicion n x m de moldes individuales no conectados de curva frontal, con un molde individual de curva posterior colocado sobre cada molde de curva frontal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08626730 | 1996-04-01 | ||
US08/626,730 US5693268A (en) | 1996-04-01 | 1996-04-01 | Wedge demolding of cast lens mold assemblies |
Publications (2)
Publication Number | Publication Date |
---|---|
MX9702424A true MX9702424A (es) | 1998-03-31 |
MXPA97002424A MXPA97002424A (es) | 1998-10-15 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
CA2201260A1 (en) | 1997-10-01 |
AU1663697A (en) | 1997-10-09 |
AU706354B2 (en) | 1999-06-17 |
US5693268A (en) | 1997-12-02 |
EP0799689A8 (en) | 2006-07-12 |
TW467826B (en) | 2001-12-11 |
JPH1058456A (ja) | 1998-03-03 |
DE69722697T2 (de) | 2004-04-29 |
EP0799689B1 (en) | 2003-06-11 |
DE69722697D1 (de) | 2003-07-17 |
EP0799689A2 (en) | 1997-10-08 |
SG79215A1 (en) | 2001-03-20 |
EP0799689A3 (en) | 1998-01-28 |
CA2201260C (en) | 2006-06-06 |
ATE242688T1 (de) | 2003-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA | Abandonment or withdrawal |