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Procedure for the deformation of hollow bodies with internal backing and injection moulding tool to implement this procedure
Procedure for the deformation of hollow bodies with internal backing and injection moulding tool to implement this procedure
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机译:使用内部衬里和注塑工具对空心体进行变形的程序,以执行该程序
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摘要
A process for demoulding curved hollow articles and an injection mould for curved hollow articles (5) of plastic having an internal undercut at one end of the hollow article, having a folding core (22) for shaping the internal undercut, where the folding core comprises two groups, each of n folding segments (27), which are mounted on a core tube (21) at various angles to the core axis, form a continuous unit in the injection state and, in the folded state, allow demoulding of the undercut, having a core block (16), which is pivotable about a pivot axis (15) of a core frame (12) and which is adjacent to a straight core guide (19) on which the core tube (21) of the folding core (22) can be moved, and a bend core (20) which is concentric to the pivot axis (15) is installed, this bend core (20), in the injection state, forming the actual injection core together with a straight core piece (11) which can be inserted and removed. IMAGE
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