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    • 8. 发明授权
    • Pivotal shaped auxiliary gas heater for glass sheet shaping molds
    • 用于玻璃板成型模具的Pivotal型辅助加热器
    • US4488892A
    • 1984-12-18
    • US459084
    • 1983-01-19
    • Robert G. FrankGeorge R. ClaassenJohn J. Ewing
    • Robert G. FrankGeorge R. ClaassenJohn J. Ewing
    • C03B23/031C03B29/10C03B23/03
    • C03B23/031C03B29/10
    • A glass sheet is press bent between a pair of bending molds of complementary shape provided with covers using burning gas source means that supplies heat by directing burning gas flames toward the bottom edge of a glass sheet. The burning gas source means is constructed and arranged to be directed toward the path taken by the glass sheet when the latter moves into a shaping position with the press bending molds retracted and to pivot away from the mold covers when the press bending molds engage the glass sheet including its bottom edge during the shaping of the sheet. Preferably, the burning gas source means has a shape that conforms with the shape of the bottom edge of the glass sheet undergoing press bending and has an upwardly directed downstream portion to provide clearance as the glass sheet moves into said shaping position in a direction such that a recessed lower edge portion thereof is the leading edge of the glass sheet during its path of movement into the shaping station.
    • 玻璃板在使用燃烧气体源装置的一对具有互补形状的弯曲模具之间被弯折,该燃烧气体源装置通过将燃烧的气体火焰引导到玻璃板的底部边缘来提供热量。 燃烧气体源装置被构造和布置为当玻璃板移动到成形位置时被引导到玻璃板采取的路径,随着压弯模具缩回并且当压弯模具与玻璃杯接合时枢转离开模具盖 在片材成形期间包括其底部边缘。 优选地,燃烧气体源装置具有与经历加压弯曲的玻璃板的底部边缘的形状一致的形状,并且当玻璃板沿着这样的方向移动到所述成形位置时具有向上指向的下游部分以提供间隙, 其凹入的下边缘部分是玻璃板在其进入成形台的运动路径期间的前缘。