Mold and method of molding annular tread
    4.
    发明授权
    Mold and method of molding annular tread 失效
    模具和模制环形胎面的方法

    公开(公告)号:US07001163B2

    公开(公告)日:2006-02-21

    申请号:US10365375

    申请日:2003-02-11

    IPC分类号: B29C35/02

    CPC分类号: B29D30/0601 B29D30/56

    摘要: An annular mold for curing an annular ring tread is disclosed. The annular mold has a plurality of radially movable and outwardly expandable inner segments for forming the inner surface of the tread and a plurality of radially movable and inwardly contracting outer segments for forming the tread outer surface. The radially outer segments are parallelograms. Each outer segment when in a closed molding position spans across one full radially inner segment and portions of two adjacent inner segments. The radially outer segments have inclined laterally extending edges relative to the axial direction of the mold while the circumferentially extending axially outer edges are perpendicular to the axial direction of the mold. The inclined laterally extending edges are inclined at least 5°, preferably about 10° relative to the axial direction. In the preferred embodiment the mold has 12 outer segments, each segment being of an arc length of about 30°.

    摘要翻译: 公开了一种用于固化环形胎面的环形模具。 环形模具具有多个可径向移动的和可向外扩展的内部段,用于形成胎面的内表面和多个可径向移动和向内收缩的外部段,用于形成胎面外表面。 径向外部段是平行四边形。 处于闭合成型位置的每个外部段横跨一个完整的径向内部段和两个相邻内部段的部分。 径向外部段相对于模具的轴向具有倾斜的横向延伸的边缘,而周向延伸的轴向外边缘垂直于模具的轴向。 倾斜的横向延伸的边缘相对于轴向方向倾斜至少5°,优选地倾斜约10°。 在优选实施例中,模具具有12个外部段,每个段具有大约30°的弧长。