Excelling in accuracy and precision, the NC feeder, powered by a top-tier Mitsubishi servo motor from Japan, has proven itself as an unbeatable contender in the arena of precise feeding. Its superior accuracy sets it apart from its counterparts, making it the go-to choice for a rapidly expanding clientele involved in precision stamping. Nonetheless, even with the NC feeder’s straightforward setup and operation, troubleshooting may be needed when confronted with material or calibration issues. This guide aims to elucidate the common problems, such as inaccurate feeding and skewing, and how to address them.
1. Material Quality: A Fundamental Element
One of the primary culprits behind slippage and deviation is the quality of the material being fed through the NC feeder. If you observe slippage or skewing, it’s essential to scrutinize the material’s quality. Look for signs of bending, unevenness, variation in thickness, or excessive burrs. Should these issues be present, a swift transition to certified coil material is a crucial step towards resolution.
2. The Role of Even Pressure: Balancing the Feeder’s Front Pressure Springs
Another cause for slippage and deviation lies in the uneven pressure exerted by the feeder’s front pressure springs. When utilizing the NC feeder, it’s pivotal to maintain consistent spring pressure on both sides. This ensures the springs are genuinely applying pressure to the material. An excellent measure of this is the inability to manually pull the material, serving as the benchmark of proper pressure.
3. The Importance of Dual Air Tube Connectivity in NC Feeders
For a standard NC feeder, two air tubes are required, each connected to a cylinder to execute clamping and relaxation functions. A common oversight by users is to connect only one tube. Although this may suffice for thinner materials, it falls short during the processing of thicker materials, leading to inadequate clamping and deviation slippage. Hence, it’s imperative to connect both air tubes in practical use for optimal operation.
4. Minimizing the Gap: Leveraging the Distance Between the Leveller and the NC Feeder
A considerable gap between the leveller or the integrated uncoiling levelling machine and the NC feeder can induce excessive material arching. This leads to increased pulling force on the feeder, resulting in material deviation. To mitigate this, strive to minimize the distance between the feeder and the leveller or the integrated uncoiling levelling machine, while still meeting the requirements of the stamping process. This reduces the chances of excessive arching and weight-induced slippage. When dealing with thick or wide materials, consider using a support frame in place of a sensing frame. This helps to prevent excessive strain on the NC feeder.
By understanding and effectively addressing these common issues, you can optimize the performance of your NC feeder, ensuring precision and efficiency in your stamping operations. This guide serves as a stepping stone to mastering the art of precision feeding with NC feeders.