STRAND MANUFACTURING APPARATUS AND PELLET MANUFACTURING APPARATUS

• Main Authors: FUKUZAWA YOHEI, FUKUSHI YUSUKE, TOMIYAMA HIDEKI
• Format: Patent
• Language: English; Japanese
• Published: 30.04.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; 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 strand manufacturing apparatus that can suppress a variation in the diameter of a resin strand without stopping the operation of an extruder.SOLUTION: The strand manufacturing apparatus includes a die with an outflow hole formed to discharge a resin material from an extruder as a cord-like resin strand, a regulating valve for adjusting the opening degree of the outflow hole, an image acquisition unit for acquiring an image of the resin strand discharged from the outflow hole, a diameter acquisition unit for acquiring the diameter of the resin strand in the image, and an opening degree adjustment unit that drives the regulating valve to adjust the opening degree based on the diameter of the resin strand acquired by the diameter acquisition unit.SELECTED DRAWING: Figure 1 【課題】押出機の運転を停止することなく、樹脂ストランドの径のばらつきを抑えることができるストランド製造装置を提供する。【解決手段】ストランド製造装置は、押出機の樹脂材を紐状の樹脂ストランドとして吐出させるための流出孔が形成されたダイと、流出孔の開度を調整するための調整弁と、流出孔より吐出された樹脂ストランドの画像を取得する画像取得部と、画像における樹脂ストランドの径を取得する径取得部と、径取得部により取得された樹脂ストランドの径に基づいて調整弁を駆動させて開度を調整する開度調整部と、を備える。【選択図】図１