Removal of sprue
Cobot optimizes injection moulded parts production
Harrison Manufacturing, a manufacturer of custom plastic injection molded parts, uses the Sawyer collaborative robot from Rethink Robotics in its Jackson, Mississippi facility. The cobot took over ergonomically demanding tasks and thus increased production throughput.
Harrison Manufacturing was founded in 2005. The company specializes in injection molding and value-added light assembly for the automotive and consumer goods industries. As a family-owned, high-volume manufacturing company, Harrison does not have the space for bulky safety cages that traditional industrial robots require. For this reason, the small footprint required by Sawyer was ideal for the company. Harrison uses Sawyer for a task where the cobot removes the sprue from injection molded parts and passes them on for packaging.
Within a short space of time, Harrison achieved tangible benefits. Sawyer improves the quality and consistency of the manufactured parts by removing the sprue from the injection molded parts and passing them on for packaging. This monotonous task often leads to errors or accidents. Thanks to Sawyer, Harrison's employees can now take on other functions. The smart cobot removes the sprue for them, a movement that puts strain on the wrists and often results in injury. Sawyer also performs the task with greater consistency, thereby improving the quality of the parts.
"We have been looking for an automation solution for this task for a long time. Conventional solutions were too big of an investment or simply not suitable for our needs," said Scott Harrison, Founder and President of Harrison Manufacturing. "Thanks to Sawyer, we are able to dedicate our employees to less onerous tasks while increasing throughput with additional shifts to meet the growing demands of our customers."
Harrison plans to commission a second Sawyer in another section of the production line in the near future. While the first Sawyer removes the sprue from the injection-molded parts and then places them on the conveyor belt, the second cobot will receive the parts, pack them and signal to the employees when the parts are ready to be palletized. The company is considering using Sawyer for a range of other tasks in the future, including parts inspection and quality control, pick-and-place tasks and loading and unloading the assembly line. "The second Sawyer has already been ordered," confirms Scott Harrison. "After the quick and straightforward commissioning of our first Sawyer, we are confident that the second cobot will be up and running just as quickly and smoothly." as












