中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.02 seconds)

    MOULD AND METHOD FOR THE HOT FORMING OF A THERMOPLASTIC OPTICAL LENS
    2.
    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

    Inventor： CHIU HAO-WEN ,  YANG HSINJIN ,  LOCKWOOD MATTHEW

    IPC: B29C51/30 ,  B29C43/02 ,  B29C43/36 ,  B29C43/52 ,  B29C51/08 ,  B29C51/12 ,  B29C51/14 ,  B29C51/32 ,  B29C51/42 ,  B29D11/00 ,  B29L11/00

    CPC classification number: B29C43/361 ,  B29C43/021 ,  B29C2043/3618 ,  B29D11/00413 ,  B29D11/00432 ,  B29L2011/0016 ,  Y10S425/11 ,  Y10S425/246 ,  Y10S425/808

    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）。

    MOULD AND METHOD FOR THE HOT FORMING OF A THERMOPLASTIC OPTICAL LENS
    3.
    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

    Inventor： CHIU HAO-WEN ,  YANG HSINJIN ,  LOCKWOOD MATTHEW

    IPC: B29C51/30 ,  B29C43/02 ,  B29C43/36 ,  B29C43/52 ,  B29C51/08 ,  B29C51/12 ,  B29C51/14 ,  B29C51/32 ,  B29C51/42 ,  B29D11/00 ,  B29L11/00

    CPC classification number: B29C43/361 ,  B29C43/021 ,  B29C2043/3618 ,  B29D11/00413 ,  B29D11/00432 ,  B29L2011/0016 ,  Y10S425/11 ,  Y10S425/246 ,  Y10S425/808

    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）。

    10.
    发明专利
    未知

    公开(公告)号：DE60221280T2

    公开(公告)日：2008-04-03

    申请号：DE60221280

    申请日：2002-12-17

    Applicant: ESSILOR INT

    Inventor： CHIU HAO-WEN ,  YANG HSINJIN ,  LOCKWOOD MATTHEW

    IPC: B29C51/30 ,  B29D11/00 ,  B29C43/02 ,  B29C43/36 ,  B29C43/52 ,  B29C51/08 ,  B29C51/12 ,  B29C51/14 ,  B29C51/32 ,  B29C51/42 ,  B29L11/00

    Abstract: The mold comprises two dies mounted in a sheath to slide along the axis of the sheath and each presenting a forming face facing the other. The two dies and the sheath are provided with intrinsic heat transfer means. A parison or preform of said thermoplastic material is placed between the two dies and the assembly is enclosed in the sheath; the dies and the sheath are heated by their intrinsic heat transfer means up to a forming temperature; The dies are moved towards each other to shape the material by plastic deformation until a predetermined relative position is reached corresponding to the thickness desired for the lens; the dies and the sheath are cooled by their intrinsic heat transfer means down to an unmolding temperature; and the finished lens is extracted from the mold.

Patent Agency Ranking