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    • 9. 发明申请
    • INJECTION MOULDING TOOL, METHOD OF INJECTION MOULDING AND A PACKAGING CONTAINER PROVIDED WITH AN INJECTION-MOULDED OPENING ARRANGEMENT
    • 注射成型工具,注射成型方法和包含注射成型开放装置的包装容器
    • WO2003051603A1
    • 2003-06-26
    • PCT/SE2002/002239
    • 2002-12-05
    • TETRA LAVAL HOLDINGS & FINANCE S.A.HÅKANSSON, HåkanEK, Göran
    • HÅKANSSON, HåkanEK, Göran
    • B29C45/14
    • B65D5/746B29C45/0046B29C45/14344B29C45/14418B29C45/14836B29C2045/0049B29L2031/565
    • The disclosure relates to a tool (1a, 1b, 2) for injection moulding of an opening arrangement (20) of plastic in a hole in a packaging material (9), the hole defining a hole edge (8) and the tool displaying a mould cavity (7) which surrounds the hole edge (8) together with a part of a first side (9a), as well as a part of a second side (9b) of the packaging material in connection with the hole edge, the mould cavity (7) displaying an inlet (10) for molten plastic and, opposing the inlet, an end gap (11) for the extension of the packaging material (9) out of the tool, the inlet (10) displaying a deflection from a first flow direction (F 1 ) in a flow gap (5) to a second flow direction (F 2 ) into the mould cavity (7). According to the invention, the tool (1a, 1b) displays, at said inlet (10), a throttle lip (12) which projects in a direction which substantially coincides with said first flow direction (F 1 ). The invention also relates to a method of injection moulding, as well as to a packaging container with an injection moulded opening arrangement (20).
    • 本公开涉及一种用于在包装材料(9)的孔中注塑塑料的开口装置(20)的工具(1a,1b,2),该孔限定孔边缘(8),并且工具显示一个 模具腔(7),其与孔边缘(8)一起围绕孔边缘(8),以及第一侧面(9a)的一部分以及与孔边缘相关的包装材料的第二侧面(9b)的一部分,模具 空腔(7)显示用于熔融塑料的入口(10),并且与入口相对的用于将包装材料(9)延伸出工具的端部间隙(11),入口(10)显示来自 将流动间隙(5)中的第一流动方向(F 1)移动到第二流动方向(F sb> 2)到模腔(7)中。 根据本发明,工具(1a,1b)在所述入口(10)处显示一个节流唇缘(12),其沿与所述第一流动方向基本重合的方向(F < )。 本发明还涉及注射成型的方法,以及具有注射成型开口装置(20)的包装容器。