INJECTION MOLDER

• Main Author: KONUMA HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 17.09.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES; BLASTING; CHAINS; ENGINEERING ELEMENTS AND UNITS; FITTINGS PREDOMINANTLY USED THEREFOR; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide an injection molder capable of reducing load of arithmetic processing when detecting abnormality of a timing belt.SOLUTION: An injection molder includes: a timing belt 85 that is wound between a driving side rotating member 91 and a driven-side rotating member 101 and transmits power from the driving side rotating member 91 to the driven-side rotation member 101; a driving side rotation detection section 95 that detects a rotation speed of the driving side rotation member 91; a driven-side rotation detection section 105 that detects a rotation speed of the driven-side rotation member 101; and an abnormality detection section 201 that detects abnormality of the timing belt 85 based on a relative speed difference between the rotation speed of the driving side rotation member 91 detected by the driving side rotation detection section 95 and the rotation speed of the driven-side rotation member 101 detected by the driven-side rotation detection section 105 at a predetermined time elapsed from the start of rotation of the driving side rotation member 91 from a stop state.SELECTED DRAWING: Figure 3 【課題】タイミングベルトの異常を検出する際における演算処理の負荷を小さくすることのできる射出成形機を提供すること。【解決手段】駆動側回転部材９１と従動側回転部材１０１との間に掛け回され、駆動側回転部材９１からの動力を従動側回転部材１０１に伝達するタイミングベルト８５と、駆動側回転部材９１の回転速度を検出する駆動側回転検出部９５と、従動側回転部材１０１の回転速度を検出する従動側回転検出部１０５と、駆動側回転部材９１が停止状態から回転を開始した後の所定期間における、駆動側回転検出部９５で検出した駆動側回転部材９１の回転速度と、従動側回転検出部１０５で検出した従動側回転部材１０１の回転速度との相対速度差に基づいて、タイミングベルト８５の異常を検出する異常検出部２０１と、を備える。【選択図】図３