MOLDING METHOD AND MOLDING DEVICE FOR PLASTIC SHEET

• Main Authors: MATSUMOTO YASUHIRO, SAKAGUCHI MASAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 02.10.2023
• Subjects: 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

To provide a molding method and a molding device for a plastic sheet having a plurality of convex shapes on at least one side of the sheet.SOLUTION: In a molding method and a molding device for a plastic sheet, a molten resin 11c extruded flat from a T-die 11b of an extruder 11a is led between an upper belt mold 15a and a lower belt mold 15b, and the molten resin 11c is formed into the protrusion on at least one side by the upper belt mold 15a and the lower belt mold 15b. In order to prevent the molten resin 11c extruded from the T-die 11b from dripping down in front of a molding device, the lower belt mold 15b receives the molten resin 11c extruded from the T-die 11b.SELECTED DRAWING: Figure 1 【課題】シートの少なくとも一方面に複数の凸状を有するプラスチックシートの成形方法と成形装置の提供【解決手段】押出機１１ａのＴダイ１１ｂから扁平に押出された溶融樹脂１１ｃを、上部ベルト状モールド１５ａと下部ベルト状モールド１５ｂの間に導かれ、該溶融樹脂１１ｃが該上部ベルト状モールド１５ａと該下部ベルト状モールド１５ｂにより、少なくとも一方の面に前記凸部を成形する方法において、前記Ｔダイ１１ｂから押出された前記溶融樹脂１１ｃが成形装置の前で下に垂れないようにするために、Ｔダイ１１ｂから押出される溶融樹脂１１ｃを、前記下部ベルト状モールド１５ｂが受けるようにしたプラスチックシートの成形方法とその成形装置。【選択図】図１