DESAIN MOLD LIFTING DEVICE DARI ATAS PADA MESIN WOOJIN TE170G5

Abstract

The redesign of the lifting system on the Woojin TE170G5 injection molding machine at Polman Babel was carried out to optimize the mold lifting process and improve space utilization efficiency around the machine. Based on field observations and interviews with operators, it was found that the previous lifting device could indeed be used to move molds, but it had a number of technical limitations. The device utilized a hydraulic system as a load-bearing mechanism, which was unable to support the mold's mass stably. As a result, the lower structure of the device deformed and came into direct contact with the floor. Additionally, the device's dimensions exceeded the size of the machine room's entrance door, causing accessibility issues within the limited space. In response to this, a new lifting device design was developed with an overhead operating system, utilizing a human-powered chain block mechanism as the primary drive. The device's dimensions were redesigned to align with the configuration and spatial constraints around the injection molding machine.