In the realm of conventional punch press production, manual feeding through the single-punch die method has long been the norm. However, this approach comes with its fair share of challenges, including high labor demands, inefficient material utilization, reduced production efficiency, imprecise product outcomes, and compromised safety standards. Today, the stamping processing industry is witnessing a significant shift away from this conventional single-punch approach, making way for the more efficient and safer continuous-die automatic feeding methods.

The transition to automated feeding introduces specialized punch press feeding machines, with NC feeders representing a prime example of computerized feeding equipment. These NC feeders bring several advantages to the table, such as precise positioning, user-friendly operation, versatile applications, superior stability, and reduced failure rates. Nonetheless, it’s crucial to understand that even the most finely crafted equipment demands careful operation and maintenance. Failure to do so can result in issues, one of the most common being feeding errors with NC feeders. In this article, we will explore effective solutions based on extensive production and maintenance experience, serving as a valuable resource for those facing such challenges.

Addressing NC Feeder Feeding Errors: A Comprehensive Guide

To resolve the issue of feeding errors with NC feeders, a systematic inspection of six critical aspects is essential:

1. Quality Assurance

Begin by examining the stamping speed of the punch press. Typically, pneumatic NC feeders operate at speeds ranging from 60 to 120 strokes per minute, while mechanical NC feeders function between 150 and 200 strokes per minute. These rates are influenced by the servo control system’s response time and relaxation time. If the actual stamping speed exceeds these parameters, feeding errors may occur due to the feeder’s inability to keep up.

2. Die Alignment

Ensure that the mold installation aligns perfectly with the NC feeder in a straight line. Any misalignment can lead to inadequate feeding, resulting in directional errors during the process.

3. Air Supply Stability

Inspect the stability of the external air pressure and the proper functioning of the solenoid valve. Inconsistent air supply can lead to feeding disruptions.

4. Feeding Time Setting

Check the feeding time setting, especially when dealing with long feeding steps. Excessive delays in the setting can cause incomplete feeding within the allocated time, leading to directional errors.

5. Relaxation Angle Setting

Confirm the accuracy of the relaxation angle setting for the NC feeder. Premature or delayed relaxation can disrupt the smooth operation of the feeder, potentially causing feeding errors.

6. Roller Inspection

Examine the rollers of the NC feeder for the presence of oil or metallic foreign objects. Oily rollers can lead to slippage during the feeding process, while the presence of metal or foreign objects can result in intermittent inaccuracies. Cleaning the rollers after inspection should resolve these issues.

When operators encounter feeding errors with NC feeders, a systematic and thorough investigation of these aspects is crucial for effective troubleshooting. Additionally, our dedicated technical service personnel are readily available to provide prompt and professional post-sales support, ensuring a seamless and efficient operation for your production needs.

In conclusion, the transition to automated feeding methods in the stamping processing industry brings numerous benefits. Still, it also introduces unique challenges, such as NC feeder feeding errors. By following the guidelines provided here and seeking expert assistance when needed, you can ensure that your production process remains efficient, precise, and error-free.

NC Feeder
NC Feeder