DIE FOR EXTRUSION MOLDING AND METHOD FOR MEASURING LIP GAP

To provide a die for extrusion molding and a method for measuring a lip gap, capable of improving calculation accuracy of the lip gap.SOLUTION: A die for extrusion molding comprises: a first die body; a second die body facing the first die body across a flow path of a molten resin; a first lip place...

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Bibliographische Detailangaben
Hauptverfasser:	FUJITA HITOSHI, KEYAKI NORITO, HIOKI HIDEAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide a die for extrusion molding and a method for measuring a lip gap, capable of improving calculation accuracy of the lip gap.SOLUTION: A die for extrusion molding comprises: a first die body; a second die body facing the first die body across a flow path of a molten resin; a first lip placed at an end of the first die body; a second lip located at an end of the second die body and facing the first lip across a discharge port for the molten resin; an adjustment device provided on the second die body, and changing the lip gap which is a width of the discharge port in the lateral direction; a first detector for detecting the displacement of the first lip; and a second detector for detecting the displacement of the second lip.SELECTED DRAWING: Figure 2 【課題】リップギャップの算出精度を向上させることができる押出成形用ダイ及びリップギャップの測定方法を提供すること。【解決手段】押出成形用ダイは、第１ダイ本体と、溶融樹脂の流路を挟んで第１ダイ本体に面する第２ダイ本体と、第１ダイ本体の端部に配置される第１リップと、第２ダイ本体の端部に配置され且つ溶融樹脂の吐出口を挟んで第１リップに面する第２リップと、第２ダイ本体に設けられて吐出口の短手方向の幅であるリップギャップを変化させる調整装置と、第１リップの変位を検出する第１検出器と、第２リップの変位を検出する第２検出器と、を備える。【選択図】図２