• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to the production of spectacle frame parts of synthetic material and in particular to the moulding of spectacle frame faces of synthetic material, for example, of polyurethane. The faces are moulded between two casting half-moulds each comprising a plate having an impression on one surface thereof. Each plate has a substantially equal thickness at every point and is made of a polyolefine. Use of such half-moulds enables the faces of spectacle frames to be directly moulded into their final shape.
    公开号:SU814270A3
    申请号:SU782639400
    申请日:1978-07-13
    公开日:1981-03-15
    发明作者:Кулон Мишель；Лапрад Жерар
    申请人:Эссилор Энтернасьональ (Компаниженераль Д"Оптик) (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of plastics into articles and, in particular, to the basic area for the manufacture of high quality eyeglass frames from polymeric materials. The known casting mold for casting polymeric materials contains half-molds made of resilient polymeric material {.1. In a known form, the mold half has a different thickness, which cannot ensure uniform cooling of the product. The purpose of the invention is to increase the operational properties of the mold by ensuring uniform cooling at all points of the molded product. This goal is achieved by the fact that, in a mold for casting products from polymeric materials, mainly the spectacle frames, containing mold cavities made of an elastic polymer material, each mold is made in the form of a plate of equal thickness with an outer surface of the appropriate configuration. the surface of the molding cavity, and from a polyolefin or a material containing polyolefin. In one of the half-molds in the area of the molding cavity there is a nest with an opposite inclination for mounting the anchoring insert of the molded product. The mold is provided with a snap-on element, made in the form of a protrusion located on one half-form, and a recess, made on the adjacent half-form. For casting several products at the same time, the mold is provided with a fastening plate with a sprue channel matched with the surface of the half-mold opposite to the surface of the forming cavity, with the sprue channel with the fastening plate located coaxially with the semi-mold channel. Fig. Shows the casting mold, obtion view; in fig. 2 shows section A-A in FIG. 1 (on an enlarged scale); in fig. 3 shows the node I in FIG. 2 (on an enlarged scale); FIG. 4 is a variant of the assembly 1 in FIG. 2; in fig. 5 - forms fastened with a plate; .on FIG. 6 product obtained in the form; in fig. 7 - half coupling, top view. The casting mold contains half-molds 1 and 2, made in the form of plates of equal thickness, each in any
    cross section and with an outer surface corresponding to the configuration of the surface of the cavity. The semi-molds are made from polyolefin or a material containing polyolefin-, as well as from polyethylene of high or low density, or polypropylene, sometimes a copolymer of polyolefin.
    The use of polyolefin-based materials, on the one hand, and, on the other hand, the corresponding synthetic materials for the preparation of the product, eliminates the use of a special substance to remove the product from the mold. The molding surface 1a of the half-mold 1 corresponds to one side of the product 3, and the molding surface 2a corresponds to the opposite side of the product 3. The inner surface.each circle 4 of the product 3 has a groove 5, called a bonbanier, to hold the lens for which it is intended. From this it follows that each of the half-molds has a part with forming slopes b and 7, respectively, to form a groove 5 on the product. One of the half-molds, in particular 1, contains on one side a supply channel 8 for feeding material into the forming cavity, and a channel 9 for removing air from the exhaust cavity. ,
    These molds allow the direct casting of a precisely defined configuration from a synthetic material and obtained without the need to manufacture a false lens during such casting.
    However, if one avoids the presence of opposing slopes on the half-molds, then the use of false lenses in FIG. 3 is shown as a broken line 10.
    Due to the resilient properties of the polyolefin-based material used to make the half-form, it is possible to remove fake lenses without difficulty.
    .In FIG. 4. A variant is depicted in which the elasticity of the material of the mold halves can be used to provide a controlled compressive force of the two mold halves to obtain the required casting.
    For locking the half-molds there is a hinged, locking device, made in the form of a protrusion 11 on the mold half 2, and, accordingly, a groove On. on the mold 1. Several such locking devices may be provided in the form.
    In another embodiment, the locking of the half-form can be provided by welding or an additional device such as a clamp.
    FIG. 4 shows a variant, c. which cavity 2a of the mold half 2 also contains a slot 12, under the insert
    13, secured in the cast product. This is necessary for a swivel designed to connect the circle 4 of the product with the arc of glasses. The elasticity of the material containing the polyolefin used to make the half-molds, and practically the polyolefin, allows separation without tearing off the sleeve 13 from the slot when it is removed and with which the insert is already bonded.
    FIG. Figure 5 shows an embodiment in which a set of injection molds is simultaneously used, each of which is formed from two between which there is a fastening plate 14 through which the feed channel 8 passes.
    Semi-shapes made from a substance containing a polyolefin can also be transparent, which allows visual control of the casting.
    The invention makes it possible to manufacture products by casting from polymeric materials without subsequent polishing or processing of products on a machine tool. The form has significant advantages due to uniform cooling at all points of the product enclosed between the half-molds.
    权利要求:
    Claims (4)
    [1]
    1. A mold for casting products from polymeric materials, mainly glasses frames, containing mold cavities made from ELASTIC polymeric material, characterized in that, in order to improve performance properties by ensuring uniform cooling at all points of the molded product, each the mold is made in the form of a plate of equal thickness with the outer surface, corresponding to the configuration of the surface of the molding cavity and of polyolefin or material containing polyolefin.
    [2]
    2. A form according to claim 1, characterized in that in one of the half-molds in the place of the forming cavity there is a slot with an opposite inclination for mounting the anchoring insert of the molded product.
    [3]
    3. The form according to claim 1, characterized by the fact that it is provided with a snap-on element made in the form of a protrusion located on one half-form and a recess made on the adjacent half-form.
    [4]
    4. The form according to claim 1, characterized in that for casting several products at the same time, it is provided with a fastening plate with a sprue channel matched with the surface of the mold half, the counter-surface of the forming cavity, and the sprue channel of the fastening plate is coaxial with the sprue half-form channel.
    Sources of information taken into account in the examination
    1. Patent of Great Britain 1278017 cl. In 5A, 1970 (prototype).
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU814270A3|1981-03-15|Casting mould for casting polymeric material articles
    CA2232952A1|1997-04-03|Molding, ejecting and dipcoating thermoplastic spectacle lens
    ES2127987T3|1999-05-01|PERFECTED TILTING DEVICE FOR PARTS RECOVERY.
    ES8105624A1|1981-07-01|Method and apparatus for injection-molding a manifold onto a set of hollow elements
    IL112794D0|1995-05-26|Process and apparatus for the production of optical lenses
    EP0186413A3|1988-04-27|Equipment for injection moulding of plastics
    EP0825013B1|2003-05-07|Multiple optical curve molds formed in a solid piece of polymer
    CA2127617A1|1995-09-04|Process for injection molding arcuately-shaped hollow articles
    JPS5952632A|1984-03-27|Production of synthetic resin stamp member
    JPS63290715A|1988-11-28|Manufacture of synthetic resin hollow molded product
    JPH0382512A|1991-04-08|Injection molding process of both surfaces molding and injection molding machine
    JP3587405B2|2004-11-10|Molded article with opening formed in center and method of forming the same
    JPS5964801A|1984-04-12|Production of nonglaring filter
    SU1680545A1|1991-09-30|Casting mould for manufacturing polymeric articles
    JPH01113217A|1989-05-01|Multiple injection molding
    SU956280A1|1982-09-07|Casting mould for producing reinforced articles from polymeric materials
    US4756864A|1988-07-12|Method of manufacturing an instrument for use in removing small particles
    FR2409846A1|1979-06-22|Injection blow moulding machine - with non-split moulds and movable mandrels carrying neck forming moulds
    JPH04112022A|1992-04-14|Molding method and molding apparatus
    JP3469627B2|2003-11-25|Adhesive molding method and apparatus for dissimilar materials
    JPH08197577A|1996-08-06|Mold for multicolor molding and production of multicolor molded product
    SU958111A1|1982-09-15|Mould for making articles of polymeric materials
    JPH01264820A|1989-10-23|Die for molding optical disc containing format
    JPH0919943A|1997-01-21|Method for double injection molding and mold therefor
    JPS57113035A|1982-07-14|Blow molding machine
    同族专利:
    公开号 | 公开日
    CH627123A5|1981-12-31|
    AU526945B2|1983-02-10|
    AT379548B|1986-01-27|
    CA1119365A|1982-03-09|
    AU3794878A|1980-01-17|
    DE2828926C2|1983-12-22|
    BE868939A|1978-11-03|
    ATA503078A|1985-06-15|
    US4265850A|1981-05-05|
    IT7825643D0|1978-07-13|
    JPS5421358A|1979-02-17|
    DD137206A5|1979-08-22|
    JPS5953168B2|1984-12-24|
    FR2397278A1|1979-02-09|
    FR2397278B1|1980-03-07|
    DE2828926A1|1979-01-25|
    GB2001003A|1979-01-24|
    GB2001003B|1982-04-21|
    IT1158886B|1987-02-25|
    NL7807542A|1979-01-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2697284C1|2019-03-05|2019-08-13|Общество с ограниченной ответственностью "ДжоинТекСэлл"|Method for casting a device for fractionating adipose tissue|DE207333C|
    US1510001A|1922-03-03|1924-09-30|American Optical Corp|Ophthalmic mounting|
    US1630262A|1924-07-16|1927-05-31|American Optical Corp|Process of making ophthalmic blanks|
    FR43136E|1933-03-04|1934-02-12|Rochaix|Method and apparatus for producing, in a single molding operation, finished plastic frames, spectacles, nose clips, lorgnettes and other optical instruments|
    US2132106A|1936-06-20|1938-10-04|Fosgood Corp|Ophthalmic mounting|
    US2361900A|1941-10-13|1944-10-31|Dow Chemical Co|Method of molding|
    US2516373A|1946-11-09|1950-07-25|Domar Products Inc|Mold for making integral plastic frames and lenses|
    US2746087A|1948-05-07|1956-05-22|Dolezal Karel|Method of manufacture of spectacles|
    US2601180A|1949-08-25|1952-06-17|Robert B Stuart|Multiple shingle and siding casting molds|
    US2624916A|1951-02-19|1953-01-13|Du Pont|Glossy molding process for ethylene polymers|
    US3423488A|1966-05-11|1969-01-21|Ppg Industries Inc|Process for casting resinous lenses in thermoplastic cast replica molds|
    US3850902A|1969-04-15|1974-11-26|American Optical Corp|Process for casting eyeglass frames|
    CA924465A|1969-04-15|1973-04-17|T. Metcalfe Richard|Process for casting eyeglass frames|
    US3582193A|1969-06-24|1971-06-01|Frank S Bogyos|Cushioned spectacle frames for athletes|
    US3931373A|1971-12-21|1976-01-06|J. O. Beattie Research Company|Replication processes for producing plastic optical components|
    US3806079A|1969-07-15|1974-04-23|Beattie Dev Co|Apparatus for simultaneously molding a plurality of plastic lenses|
    US3662693A|1970-09-22|1972-05-16|Eugene K Dana|Method of molding candy in plastic mold|
    US3829263A|1972-07-10|1974-08-13|Rion Co|Apparatus for reduced pressure casting of synthetic resins|
    FR2374148B1|1976-12-17|1980-01-11|Essilor International Sa|
    US4147324A|1977-09-09|1979-04-03|Walter Dennis P|Shotgun target mold for ice targets|
    AT405154B|1994-02-28|1999-06-25|Friedmann Kg Alex|Heating/ventilation device for vehicles|NL8100524A|1981-02-04|1982-09-01|Bouwhuis Hendrik|CARRYING BOARD AND METHOD FOR RENOVATING THE SAME|
    US4456448A|1982-06-04|1984-06-26|Utex Industries, Inc.|Molding apparatus|
    US4538787A|1983-04-25|1985-09-03|Fox Richard B|Rigid-foam plastic mold and method of preparation|
    JPS61114232A|1984-11-09|1986-05-31|Mitsubishi Electric Corp|Manufacture of screen for video projector|
    US5620720A|1994-11-29|1997-04-15|Allergan|Cast molding of intraocular lenses|
    US5798129A|1995-08-31|1998-08-25|Megleo; Bruce A.|Device for prototype molding|
    US7237892B2|2004-06-02|2007-07-03|Bacou-Dalloz Eye & Face Protection, Inc.|Temple bar with ball and socket hinge and method of making same|
    DE102007057987A1|2007-12-03|2009-06-10|Christoph Egger|Process for the production of castings from polyurethane|
    EP3288989A1|2015-04-29|2018-03-07|ElkaR&D S.r.l.|Decorated polymeric material comprising methyl methacrylate for making optical device frames, in particular glass frames and glasses having frames made of such a material|
    JP6958106B2|2017-08-21|2021-11-02|セイコーエプソン株式会社|Manufacturing method of deflector, display device and deflector|
    DE102018200393A1|2018-01-11|2019-07-11|Christoph Egger|Process for producing spectacle units|
    IT201800010003A1|2018-11-03|2020-05-03|Optical Partner S R L|PROCESS FOR THE REALIZATION BY OVER-INJECTION OF A CLOSED CIRCLE GLASSES FRAME AND CONTEMPORARY REALIZATION OF DECORATIVE EFFECTS.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7721604A|FR2397278B1|1977-07-13|1977-07-13|
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