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    • 1. 发明申请
    • Method and apparatus for manufacturing glass tubes having a predetermined inner profile, preferably for continuously manufacturing such glass tubes
    • 用于制造具有预定内部轮廓的玻璃管的方法和装置,优选用于连续制造这种玻璃管
    • US20130186143A1
    • 2013-07-25
    • US13551920
    • 2012-07-18
    • Michael ZieglerRainer EichholzErhard Zemsch
    • Michael ZieglerRainer EichholzErhard Zemsch
    • C03B17/04
    • C03B17/04C03B33/06
    • The invention relates to a method and apparatus for manufacturing glass tubes having a predetermined inner profile according to a Vello-method or Down-Draw-method, wherein molten glass 6 emerges from an outlet orifice 12 of a melt feed 2 and is drawn over a shaping body 3 so as to form a hollow drawing bulb 50, and the drawing bulb 50 is drawn over a profile forming body 4 positioned downstream of the shaping body 3 to form the predetermined inner profile.In order to enable a reliable and riskless positioning of the profile forming body 4 in an operational position within the drawing bulb 50, according to the invention the profile forming body 4 is moved in axial direction either from below the shaping body 3 via the inner space of the glass tube 5; 5′ or via an inner bore 31 of a shaft 30 supporting said shaping body until reaching an operational position in the inner space of said glass tube 5; 5′.
    • 本发明涉及一种用于制造具有根据Vello方法或下拉法的预定内部轮廓的玻璃管的方法和装置,其中熔融玻璃6从熔体进料2的出口孔12排出并被拉过 成形体3以形成中空的拉丝灯泡50,并且将拉伸灯泡50拉伸到位于成型体3下游的轮廓形成体4上以形成预定的内部轮廓。 为了使轮廓成形体4可靠且无风险地定位在拉丝灯泡50内的操作位置,根据本发明,轮廓成形体4在成形体3的下方经由内部空间 的玻璃管5; 5'或通过支撑所述成形体的轴30的内孔31,直到达到所述玻璃管5的内部空间中的操作位置; 5'。