Servo robotic arm is one of the common robotic arms in injection molding, generally divided into three axis servo robotic arm and five axis servo robotic arm. It imitates human arms and can be used for automatic water cutting, mold inserts, mold labeling, mold assembly, shaping, classification, stacking, product packaging, mold optimization, etc. In practical applications, it can reduce heavy physical labor, improve labor conditions, and ensure safe production; Improving the production efficiency of injection molding machines, stabilizing product quality, reducing scrap rates, reducing production costs, and enhancing the competitiveness of enterprises play an extremely important role.

The servo robot operator operates through the human-machine interface. When the robot receives an executable signal from the injection molding machine, the robot cuts off the mold closing signal to ensure the safety of the robot's retrieval. After completing the retrieval, the robot resumes the action of the injection molding machine. The difficulty in designing a control system lies in the coordinated working relationship between the robotic arm and the injection molding machine. Under the command of the control system, the robotic arm completes various actions according to the predetermined work program, thereby taking out the injection molded products from the mold and transporting them to the designated location or the next production process.
The servo robotic arm uses an electric motor as the power source, which has the advantages of simple structure, light weight, fast action, reliable operation, energy conservation, and environmental protection. However, the hydraulic robotic arm uses hydraulic power and electro-hydraulic servo control, which has the advantages of flexible action, high load rigidity, high accuracy, fast response speed, and high power to weight ratio. It is more suitable for high-power load handling situations.
Servo robotic arm can significantly improve productivity and reduce production costs, improve the quality of injection molded products, and avoid loss and waste caused by human error. Therefore, the effectiveness of servo robots in injection molding production has become increasingly important. At present, the types of servo robots in China are relatively simple and mostly used for picking up parts. With the development of the injection molding industry, more and more servo robots will be used in various processes such as feeding, mixing, active loading and unloading of molds, and recycling of waste, and will be developed towards intelligence. The pressure of modern manufacturing industry, coupled with the problem of difficult recruitment, has led many enterprises to continuously introduce servo robots for industrial production.
Servo robotic arm is a new innovation and transformation in industry and manufacturing. Looking ahead, it will be the era of large-scale industry, and we will see many large-scale projects fully mechanized and automated. At that time, only a small number of workers are needed to manage and inspect the operation status of the robotic arm.