MOLDING DIE AND METHOD OF PRODUCING INSERT MOLDED BODY
To suppress occurrence of burrs around a protruding part and heighten position accuracy of the protruding part, when intra-die molding an insert molded body including the substantially U-shaped protruding part in which part of a rigid member buried in a foam particle molded body protrudes from the f...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
24.09.2021
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Subjects | |
Online Access | Get full text |
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Summary: | To suppress occurrence of burrs around a protruding part and heighten position accuracy of the protruding part, when intra-die molding an insert molded body including the substantially U-shaped protruding part in which part of a rigid member buried in a foam particle molded body protrudes from the foam particle molded body to be exposed.SOLUTION: In a molding die of this invention, a fixation structure 20 for fixing a protruding part 4 to the molding die 10 includes a first fixture 20a. When fixing the protruding part 4 to the first fixture 20a, a positioning pin 29a is inserted between columnar parts 4a of the substantially U-shaped protruding part 4 by approximating the protruding part 4 housed in a housing body 21 and a fixation body 27 to each other, the protruding part 4 is fixed between a positioning part 25 of the housing body 21 and the fixation body 27, and an opening part 22 of the housing body 21 is closed by a shutter 28.SELECTED DRAWING: Figure 8
【課題】発泡粒子成形体に埋設された剛性部材の一部が、発泡粒子成形体から露出して突出する略U字状の突出部を有するインサート成形体を型内成形するに際し、突出部周辺のバリの発生を抑制すると共に、突出部の位置精度を高くする。【解決手段】突出部4を成形型10に固定するための固定構造20が第一の固定具20aを備え、第一の固定具20aに突出部4を固定するに際し、収容体21に収容された突出部4と固定体27とが接近することで、略U字状の突出部4の柱部4a間に位置決めピン20aが挿入されて、収容体21の位置決め部25と固定体27との間に突出部4を固定すると共に、収容体21の開口部22をシャッター28により閉塞する。【選択図】図8 |
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Bibliography: | Application Number: JP20200041776 |