In the realm of punch processing, the necessity for diverse material attributes and molds is indisputable. Every product demands specific characteristics like material type, width, or thickness, alongside distinct molds. Hence, the process of mold changing within punch presses emerges as a crucial and frequently occurring procedure.

Identifying and Resolving Servo Feeder Challenges

Addressing Height Discrepancies

Upon mold alteration in the punch press, overlooking or incorrectly adjusting the servo feeder’s feeding height can result in inaccurate feeding. Each mold boasts a unique lower mold height, mandating a corresponding adjustment of the servo feeder’s feeding height. This alignment ensures precise and seamless feeding.

Adjustment Technique: When recalibrating, align the servo feeder’s discharge port plate surface with the lower mold surface height. Avoid horizontal material adjustments post-feeding. Furthermore, post-adjustment, ensure the tight fastening of installation plate fixing screws to prevent accuracy deviations due to loosening.

Fine-Tuning Relaxation Angle

Post-mold change, neglecting to readjust or erroneously adjusting the relaxation angle (time) of the servo feeder may disrupt feeding accuracy. Diverse molds entail distinct stamping processes, necessitating varying relaxation timings for the mold guide pin’s entry into the material hole.

Adjustment Emphasis: For pneumatic servo feeders, manipulation of the relaxation angle involves altering the punch press relaxation cam angle to initiate relaxation post-mold guide pin entry. Conversely, mechanical servo feeders require relaxation rod adjustments to commence relaxation upon the mold guide pin’s initial entry into the material guide hole.

Rectifying Feeder Alignment and Pressure

Misalignment of servo feeder feeding, uneven compression spring pressure, or improper thickness adjustments post-mold change can compromise feeding accuracy. Addressing these discrepancies warrants meticulous inspection and resolution.

Tackling Material Property Issues

Post-mold change, material property irregularities such as bending, uneven thickness, pronounced burrs, or thickness exceeding the machine’s applicable range can hinder servo feeder accuracy. This issue necessitates the replacement of substandard material with qualified, standard-compliant alternatives to restore proper feeding.

By adhering to these troubleshooting steps, stamping processing enterprises can effectively mitigate servo feeder inaccuracies following punch press mold alterations, ensuring seamless operations and optimal productivity.

Servo Feeder
Servo Feeder