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What are the disadvantages of traditional injection molding robots？

2024/04/24 By 兰兹

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Injection molding robots can replace humans in grabbing, picking, and placing products during injection molding. They have become the key to improving production efficiency and product consistency. However, with the advancement of technology, traditional injection molding robots in the past will have certain limitations in some cases, and problems such as shutdown and collision will affect the entire injection molding· process. So, in this article, we will discuss their various shortcomings and tell you the characteristics of modern injection molding robots.

Traditional injection molding robots have limited flexibility

Although traditional injection molding robots can solve the automation problem, one of their major limitations is that they are limited to repetitive tasks. These robots operate according to fixed sequences and follow programming for specific, unchanging movements. This method is often very effective for production with unchanged injection molding requirements, however, in an environment where product design changes, this becomes a limitation and requires manual reprogramming by skilled technicians. Without extensive manual and equipment adjustments, you cannot adjust them to handle various mold sizes.

Traditional injection molding robots have limited speed!

The speed limitations of traditional injection molding robots stem from their mechanical design and drive systems. They typically feature servo motors that can perform repetitive, precise movements but lack the durability and reliability required for continuous operation. Their mechanical nature limits their ability to accelerate and decelerate, which can slow down their overall cycle times, especially when dealing with complex or multi-part processes. The weight of a traditional injection molding robot’s arm also affects its speed limit. They typically feature heavier mechanical components that require more moving time, slowing down operations.

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Energy efficiency issues

In terms of energy consumption during operation, although they use servo motors for movement, they have high precision and power consumption, especially when running continuously in long-term production operations. The energy required to drive these servo motors increases significantly with the size and weight of the robot. Another factor that contributes to energy inefficiency is their inherent rigidity in operation. They are often task-specific and have little flexibility; therefore, they cannot adapt to changes in energy use in production.

Characteristics of the new generation of injection molding robots

The new generation of injection molding robots achieves accurate, energy-saving, and intelligent five-in-one servo drive in terms of technology and efficiency. To solve the cost of each stop and collision, one servo driver can directly control 5 servo motors, making the removal control more precise. At the same time, the energy efficiency is increased by 20% through the multi-axis common bus design. The arm is made of lightweight aluminum alloy, reducing weight by 20%. It also uses high-rigidity precision slide rails and high-strength steel belt transmission to make high-speed operation less noisy and have a longer life.

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Device interconnection

They realize cross-system interconnection through network protocols, which suffer from factors such as signal delay, poor compatibility, and low stability. However, the new generation of injection molding robots supports the Modbus RTU communication protocol. Through the open architecture of the underlying control system, the auxiliary machines and injection molding machines around the injection molding machine have a native language for system integration, making equipment interconnection an extension of the system. By supporting host call signals, you can achieve integrated operations and improve the efficiency of the production line. It solves problems such as failure to remove an equipment alarm caused by ejection position deviation and uncoordinated suction time.

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Break through traditional limitations

While traditional injection molding robots meet many manufacturing needs, their shortcomings have become increasingly apparent with modern production demands and developments. We need more advanced solutions regarding flexibility, speed, and energy consumption. Therefore, a new generation emerged, and technological upgrades and updates brought more benefits.

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