Gripper System Removes Hot Plastic Parts from Molding Machines

Fipa Inc. recently developed a custom gripper system for an injection molding machine dedicated to making automotive lighting reflectors.

Fipa Inc. recently developed a custom gripper system for an injection molding machine dedicated to making automotive lighting reflectors. The system automates what had been a manual demolding process to protect employees from handling hot (120°C) plastic parts. It also is said to improve part quality by ensuring that they are removed from their molds free of any marks or paint-wetting impairment substances that could interfere with subsequent coating processes. The gripper system also reduces cycle times to a 33 sec., increasing factory throughput, the company says.

The gripper system is comprised of components from Fipa’s modular construction kit, including sprue grippers that combine a high closing force for secure gripping with a soft, heat-resistant hydrogenated nitrile butadiene rubber (HBNR) coating for blemish-free handling; finger grippers that prevent parts from laterally slipping; and sensor-enabled grippers that monitor and inform the success of the overall handling sequence.