Servo feeders play a crucial role in the automation and precision of stamping processes. However, inaccuracies in their operation can lead to production issues and reduced efficiency. In this article, we will discuss common challenges that impact servo feeder precision and provide solutions to address them effectively.
1. Overcoming Insufficient Material Buffer Issues
A limited pre-feeding area for thick materials can result in a heavy or highly vibrating buffer, making it difficult for the servo feeder to match the leveling machine’s speed and causing material pulling. To address this issue:
- Reduce stamping speed
- Extend the pre-feeding area
- Minimize vibrations
- Increase servo feeder speed
- Synchronize with press speed
2. Dealing with Obstructed Mold Problems
If material movement within the mold is impeded, it can lead to imprecise servo feeder feeding. To resolve this issue, remove and repair the mold, ensuring that the material moves smoothly within it and no jamming occurs during the stamping process.
3. Preventing Soft Material Deformation
Material deformation during the clamping process of the servo feeder can compromise accuracy. To mitigate this problem:
- Lower the compression force of the pressure spring according to the material’s non-slip standard
- If issues persist, replace the servo feeder’s steel roller with a PU-coated roller
4. Addressing Uneven Material Thickness and Severe Burrs
These issues can cause inaccuracies in servo feeder feeding. To tackle this challenge, replace the material with a higher-quality alternative.
5. Optimizing Feeding Time
Excessively fast stamping speed may lead to inadequate feeding time or slow feeding speed, resulting in insufficient feeding. To improve feeding time:
- Adjust the feeding angle to maximize it
- Increase the servo feeder’s feeding speed to match the press’s stamping speed
6. Ensuring Correct Feeding Time
For optimal performance, ensure the machine’s release time is accurate. Initiate feeding when the pilot pin is fully inserted into the positioning hole and release the pilot pin before clamping. As cylinder reactions are relatively slow, clamping can be initiated earlier. Adjust feeding time accurately to prevent issues.
7. Minimizing Electromagnetic Interference
Strong electromagnetic interference near the servo feeder can cause shorter feeding times. To minimize interference:
- Maintain distance from magnetic field interference
- Establish proper grounding
8. Maintaining Stable Power and Air Pressure
Unstable power can disrupt precise instruments within the servo feeder, leading to machine stoppage, feeding errors, and unnecessary damage to precision control components. Unstable pressure can cause the feeder to release, leading to material issues. To ensure stability:
- Provide stable power and air pressure sources
By addressing common inaccuracies in servo feeder precision, manufacturers can improve the efficiency and reliability of their stamping processes. Implementing the solutions outlined in this article will help optimize servo feeder performance and enhance overall production quality.
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