MOULD AND METHOD FOR THE HOT FORMING OF A THERMOPLASTIC OPTICAL LENS
    1.
    发明申请
    MOULD AND METHOD FOR THE HOT FORMING OF A THERMOPLASTIC OPTICAL LENS 审中-公开
    一种用于热塑性光学镜片的热成形的模具和方法

    公开(公告)号:WO03051616A9

    公开(公告)日:2004-07-01

    申请号:PCT/FR0204386

    申请日:2002-12-17

    Applicant: ESSILOR INT

    Abstract: The invention relates to a mould and a method for the hot forming of a thermoplastic optical lens. The inventive mould consists of two dies (1, 2) which are mounted in a hollow shaft (3), so as to slide along the axis (6) thereof, and which comprise opposing forming surfaces (4, 5). The two dies (1, 2) and the shaft (3) are provided with intrinsic heat transfer means. The inventive method comprises the following steps, consisting in: placing a paraison or preform (P) of said thermoplastic material between the two dies (1, 2) and enclosing all of the latter inside the shaft (3); heating the dies (1, 2) and the shaft (3) to a forming temperature, using the intrinsic heat transfer means thereof (15, 16, 19, 20); bringing the dies (1, 2) closer together, in order to form the material by means of plastic deformation, until a pre-determined relative position is reached, said position corresponding to the desired thickness of the lens; cooling the dies (1, 2) and the shaft (3) to a stripping temperature, using the intrinsic heat transfer means thereof (15, 16, 19, 20); and extracting the finished lens (L) from the mould.

    Abstract translation: 本发明涉及用于热塑性光学透镜的热成型的模具和方法。 本发明的模具由安装在中空轴(3)中的两个模具(1,2)组成,以便沿其轴线(6)滑动,并且包括相对的成形表面(4,5)。 两个模具(1,2)和轴(3)设置有本征传热装置。 本发明的方法包括以下步骤:在所述两个模具(1,2)之间放置所述热塑性材料的辅助或预成型件(P)并将所有热塑材料封闭在所述轴(3)内; 使用其本身的传热装置(15,16,19,20)将模具(1,2)和轴(3)加热到成形温度; 使模具(1,2)靠近在一起,以便通过塑性变形形成材料,直到达到预定的相对位置,所述位置对应于镜片的期望厚度; 使用其本身的传热装置(15,16,19,20)将模具(1,2)和轴(3)冷却至汽提温度; 并从模具中取出完成的镜片(L)。

    A METHOD FOR COATING AN OPHTHALMIC LENS WITHIN AN INJECTION MOLDING MACHINE
    2.
    发明申请
    A METHOD FOR COATING AN OPHTHALMIC LENS WITHIN AN INJECTION MOLDING MACHINE 审中-公开
    一种在注射成型机中涂覆眼镜的方法

    公开(公告)号:WO2007085910A3

    公开(公告)日:2007-11-29

    申请号:PCT/IB2006004146

    申请日:2006-12-21

    CPC classification number: B29D11/00865 B29L2011/0016 Y10S425/808

    Abstract: A method for in-mold coating of an injection molded thermoplastic lens that resides in an injection molding machine oriented to a horizontal parting line(116). An optical lens(

    Abstract translation: 一种注射成型热塑性透镜的模内涂覆的方法,所述注射成型热塑性透镜驻留在面向水平分型线(116)的注塑机中。 首先通过将熔融热塑性树脂注入到在主夹紧力下保持闭合的边缘门控透镜形成腔中来形成光学透镜(<1 <2)。 在镜片刚性足以保持其形状时,模具(10,12)打开。 将未加压的全部计量的涂层电荷(60f)施加到透镜的中心。 通过将夹紧力从零升高到小于主夹紧力的次级夹紧力将涂层压缩成均匀厚的无条纹层,将涂层共同模制。

    MOULD HALF-BLOCK FOR THE INJECTION MOULDING OF A THERMOPLASTIC OPTICAL ELEMENT AND THE MOULD COMPRISING ONE SUCH HALF-BLOCK
    3.
    发明申请
    MOULD HALF-BLOCK FOR THE INJECTION MOULDING OF A THERMOPLASTIC OPTICAL ELEMENT AND THE MOULD COMPRISING ONE SUCH HALF-BLOCK 审中-公开
    用于注射成型的热塑性光学元件的模具和包含一个这样的半块的模具

    公开(公告)号:WO03051605A8

    公开(公告)日:2004-10-07

    申请号:PCT/FR0204385

    申请日:2002-12-17

    Applicant: ESSILOR INT

    Abstract: The invention relates to a mould half-block comprising at least one mould cavity which is defined transversely by the useful surface of a shell. The aforementioned shell, which is provided with intrinsic, dual-purpose heat transfer means (heating and cooling), comprises: a base bearing all of the heat transfer means of the shell; and a removable insert which is mounted on the base and which bears said useful surface. The insert comprises no intrinsic heat transfer means and is thermally regulated solely by means of heat transfer with said base. Moreover, the insert, which is in the form of a cap, covers at least a head portion of the base and the heat transfer means of the base determine the head portion of the base that is covered by the insert.

    Abstract translation: 本发明涉及一种模具半块,其包括由壳的有用表面横向限定的至少一个模腔。 上述壳体设置有本征的双重传热装置(加热和冷却),包括:承载壳体的所有传热装置的基座; 以及安装在基座上并具有所述有用表面的可移除插入件。 插入件不包含固有传热装置,并且仅通过与所述基座的热传递来热调节。 此外,盖子形式的插入件至少覆盖基座的头部,并且基座的传热装置确定由插入件覆盖的基座的头部。

    METHOD FOR THE INJECTION MOULDING OF AN OPTICAL ELEMENT MADE FROM SYNTHETIC THERMOPLASTIC MATERIAL
    4.
    发明申请
    METHOD FOR THE INJECTION MOULDING OF AN OPTICAL ELEMENT MADE FROM SYNTHETIC THERMOPLASTIC MATERIAL 审中-公开
    从合成热塑性材料制成的光学元件的注塑成型方法

    公开(公告)号:WO03051602A8

    公开(公告)日:2004-08-26

    申请号:PCT/FR0204387

    申请日:2002-12-17

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method for the injection moulding of an optical element made from synthetic thermoplastic material. For each lens moulding cycle, the method comprises the following steps: the wall of the mould cavity is heated to a heating temperature which is greater than or equal to the moulding temperature of the material; the mould cavity is filled with said material; once filled, the pressure of the material thus introduced into the mould cavity is increased to a compaction pressure; the wall of the mould cavity is cooled to a cooling temperature in order to cool the moulded material to a stripping temperature which is lower than the melting temperature thereof, said cooling temperature being lower than the aforementioned stripping temperature. The filling of the mould cavity with said material is started before the heating temperature has been reached. When both the compaction pressure of said material and the heating temperature of the mould cavity wall have been reached, they are maintained for a given time.

    Abstract translation: 本发明涉及一种由合成热塑性材料制成的光学元件的注射成型方法。 对于每个透镜成型周期,该方法包括以下步骤:将模腔的壁加热到大于或等于材料的成型温度的加热温度; 模腔充满所述材料; 一旦填充,由此引入模腔的材料的压力增加到压实压力; 将模腔的壁冷却至冷却温度,以便将模制材料冷却至低于其熔融温度的剥离温度,所述冷却温度低于上述剥离温度。 在达到加热温度之前开始用所述材料填充模腔。 当达到所述材料的压实压力和模腔壁的加热温度两者时,它们被保持一段给定的时间。

    METHOD OF COATING AN OPHTHALMIC LENS USING STAMP COATING
    5.
    发明申请
    METHOD OF COATING AN OPHTHALMIC LENS USING STAMP COATING 审中-公开
    使用印花涂层涂覆眼镜镜片的方法

    公开(公告)号:WO2007099404A3

    公开(公告)日:2007-12-06

    申请号:PCT/IB2006004157

    申请日:2006-12-21

    Abstract: A method to produce in-mold coated lenses, and the coated lenses produced by the method. A cliche (80a) with a measured amount of thermoset acrylate-based coating solution is provided on, or adjacent to, the parting line of an injection molding machine. An inflatable silicone bladder (70b) is dipped into the cliche to pickup a thin film of coating. The bladder is transported along a vertical axis or plane or other path to press the coating against the heated mold insert (46a). The bladder pauses while the coating pre-cures and the bladder is peeled off, leaving the coating on the mold insert. The mold is closed and a thermoplastic resin is injected into the mold cavity to form a coated ophthalmic lens.

    Abstract translation: 一种生产模内涂层透镜的方法,以及通过该方法制造的涂覆透镜。 具有测量量的基于丙烯酸酯的热固化剂涂层溶液的陈列架(80a)设置在注射成型机的分型线上或与其相邻。 将可充气的硅胶囊(70b)浸入陈列架中以拾取涂层薄膜。 气囊沿着垂直轴线或平面或其它路径输送以将涂层压靠加热的模具插入件(46a)。 当涂层预固化时,膀胱停止,并且将皮肤剥离,使涂层留在模具插入物上。 关闭模具,并将热塑性树脂注射到模腔中以形成涂覆的眼科镜片。

    INJECTION MOLDING A LENS ONTO A COATED OPHTHALMIC WAFER
    6.
    发明申请
    INJECTION MOLDING A LENS ONTO A COATED OPHTHALMIC WAFER 审中-公开
    注射成型一个镜片到一个涂层的眼镜

    公开(公告)号:WO2007085908A3

    公开(公告)日:2007-11-22

    申请号:PCT/IB2006004142

    申请日:2006-12-21

    Abstract: A method of in-mold coating utilizing an injection molding machine oriented to a horizontal parting line. At the beginning of the cycle the mold opens and a charge of liquid coating solution is deposited onto the lower mold insert. A ophthalmic wafer is deposited on the coating to spread it across the insert surface. The mold is closed and a pre-cure phase elapses before the thermoplastic resin is injected into the mold cavity above the wafer. The process provides coated and functionally enhanced lenses upon ejection from the molding machine.

    Abstract translation: 使用面向水平分型线的注塑机的模内涂布方法。 在循环开始时,模具打开,并且液体涂布溶液的电荷沉积到下模具插入件上。 将眼晶片沉积在涂层上以使其穿过插入物表面。 模具闭合,并且在将热塑性树脂注入到晶片上方的模腔中之前,经过预固化阶段。 该方法在从成型机喷出时提供涂覆和功能增强的透镜。

    MOULD AND METHOD FOR THE HOT FORMING OF A THERMOPLASTIC OPTICAL LENS
    7.
    发明申请
    MOULD AND METHOD FOR THE HOT FORMING OF A THERMOPLASTIC OPTICAL LENS 审中-公开
    热塑性光学镜片热成型的模具和方法

    公开(公告)号:WO03051616A2

    公开(公告)日:2003-06-26

    申请号:PCT/FR0204386

    申请日:2002-12-17

    Applicant: ESSILOR INT

    Abstract: The invention relates to a mould and a method for the hot forming of a thermoplastic optical lens. The inventive mould consists of two dies (1, 2) which are mounted in a hollow shaft (3), so as to slide along the axis (6) thereof, and which comprise opposing forming surfaces (4, 5). The two dies (1, 2) and the shaft (3) are provided with intrinsic heat transfer means. The inventive method comprises the following steps, consisting in: placing a paraison or preform (P) of said thermoplastic material between the two dies (1, 2) and enclosing all of the latter inside the shaft (3); heating the dies (1, 2) and the shaft (3) to a forming temperature, using the intrinsic heat transfer means thereof (15, 16, 19, 20); bringing the dies (1, 2) closer together, in order to form the material by means of plastic deformation, until a pre-determined relative position is reached, said position corresponding to the desired thickness of the lens; cooling the dies (1, 2) and the shaft (3) to a stripping temperature, using the intrinsic heat transfer means thereof (15, 16, 19, 20); and extracting the finished lens (L) from the mould.

    Abstract translation: 本发明涉及一种用于热塑性光学透镜的热成型的模具和方法。 本发明的模具由安装在空心轴(3)中的两个模具(1,2)组成,以便沿其轴线(6)滑动并且包括相对的成形表面(4,5)。 两个模具(1,2)和轴(3)设有固有的热传递装置。 本发明的方法包括以下步骤:将所述热塑性材料的一个或多个坯料(P)放置在两个模具(1,2)之间并将其全部封闭在轴(3)内; 使用其本征热传递装置(15,16,19,20)将模具(1,2)和轴(3)加热至成形温度; 使模具(1,2)更靠近在一起,以便通过塑性变形形成材料,直到达到预定的相对位置,所述位置对应于所需透镜的厚度; 使用其本征热传递装置(15,16,19,20)将模具(1,2)和轴(3)冷却至剥离温度; 并从模具中提取成品镜片(L)。

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