Dongguan, Guangdong, China. Tel: +8613528640058 woobin3301@gmail.com

Waimica case

Waimica Heavy-Duty Gearbox Solution for Injection Molding Automation - Inserter In/Out Assembly Robot Joints

2018-08-06 Waimica

Industry Challenges and Pain Points Analysis:

The injection molding automation industry has seen rapid development in recent years, particularly in the field of insert in/out assembly robot joints. These joints are used in highly specialized equipment to precisely place inserts into molten plastic during the injection process and to remove finished parts efficiently, ensuring minimal cycle time and high repeatability.

Typical equipment includes multi-axis robots with high-speed movements, grippers, and actuation systems, where gearboxes are a core component. Current trends include increasing automation levels, integration with Industry 4.0 technologies, and the demand for higher production flexibility and faster cycle times.

Despite the progress, the industry faces several critical challenges:

  • High dynamic load and vibration: Frequent and rapid motion of robot joints requires gearboxes to withstand high torque and shock loads, yet remain compact and lightweight.
  • Accuracy and repeatability: Even minor deviations in positioning can result in defective parts, requiring high-precision gearboxes with low backlash.
  • Energy efficiency: With rising energy costs, systems must operate with high efficiency to minimize power consumption and heat generation.
  • Compact and modular design: The demand for smaller footprint systems and easier integration leads to the need for gearboxes with reduced size and modular mounting options.
  • Environmental resistance: Operations in high-temperature or cleanroom environments require gearboxes to maintain performance under extreme conditions.
  • Long service life and low maintenance: Frequent maintenance interrupts production and increases downtime, necessitating robust, long-lasting gearboxes with minimal lubrication or replacement needs.

The Key Role and Technical Requirements of Gearboxes:

Gearboxes in insert in/out assembly robot joints play a pivotal role in ensuring the precision and efficiency of the entire automation system. The following are the core technical requirements:

  • Torque density: The gearboxes must deliver high torque output in a compact form factor to meet the spatial constraints of robot joints.
  • Transmission accuracy: Positioning accuracy is essential to avoid misalignment and damage to inserts or molded parts.
  • Response speed: Fast acceleration and deceleration of joints are necessary to maintain high production throughput.
  • Compatibility: The gearboxes must be compatible with a variety of motor types and control systems used in different applications.
  • Environmental adaptability: They must operate reliably in challenging environments, including high temperatures, humidity, or in cleanrooms.
  • Service life and maintenance frequency: Long-lasting performance with low maintenance is a key factor in reducing operational costs and increasing system uptime.

Waimica's Heavy-Duty Gearbox Solution:

Waimica's heavy-duty gearboxes are specifically designed to address the challenges in insert in/out assembly robot joints. The following features demonstrate how our products are engineered to match industry requirements:

  • Structural Design: Our gearboxes are compact, with modular configurations and flexible mounting options, including integrated bearing systems and high-strength housing materials. This allows for easy integration into existing robot designs.
  • Performance Parameters:
    Parameter Waimica Other Brands
    Torque Range (N.m) 50 - 500 40 - 600
    Backlash (arcmin) ≤3 ≤5
    Efficiency (%) ≥90 ≥85
    Input Flange Form ISO 9409, IEC standard IEC standard
    Temperature Range (°C) -20 to +100 -10 to +90
    Protection Class (IP) IP65, IP67 optional IP54, IP65
  • Special Operating Conditions: Waimica gearboxes are engineered for use in high-temperature environments and cleanrooms. They are available in IP67 variants for applications requiring high environmental protection and are compatible with temperature ranges up to +100°C.

Typical Application and Customer Feedback:

A large-scale injection molding equipment manufacturer in Germany needed a reliable and cost-effective gearbox solution for a new line of high-speed insert in/out assembly robots. The challenge was to meet the high torque and precision requirements while maintaining a compact design to fit within the existing robot framework.

Our Waimica technical team conducted a comprehensive site visit and evaluated the load, motion profiles, and environmental conditions. We selected a model from our high-torque, low-backlash series that matched the customer’s needs. The gearbox was customized with an IP67 rating to handle frequent cleaning processes in the cleanroom.

Post-implementation, the customer reported significant improvements:

Performance Aspect Before Waimica After Waimica Improvement
Robot Joint Stability 65% 98% 33% increase
Backlash 5 arcmin 2.8 arcmin 24% improvement
Maintenance Interval (hours) 500 1,200 140% increase
Energy Efficiency 82% 89% 7% increase

The customer also noted a 20% reduction in overall system costs, making the solution highly attractive in a competitive market.

Conclusion and Waimica Brand Value Summary:

Waimica delivers advanced heavy-duty gearboxes that not only meet but exceed the technical and operational requirements of insert in/out assembly robot joints in the injection molding automation industry. Our products are engineered for high torque density, exceptional transmission accuracy, fast response times, and extended service life.

As a premium Chinese manufacturer, Waimica provides a high-cost-performance alternative to international brands without compromising on quality. We pride ourselves on our strong R&D capabilities, quick delivery times, and tailored solutions to meet unique customer needs.

Looking ahead, the injection molding automation sector is expected to further evolve with higher-speed operations, better integration with smart systems, and more demanding environmental requirements. Waimica is well-positioned to support this transition with innovative engineering, robust product development, and a commitment to long-term customer partnerships.