I. Enhancing Feed Accuracy through Relaxation Timing Adjustment
In the realm of stamping precision, the automation of clamp-type feeders plays a pivotal role in securing precise feed positioning, particularly guided by the feed endpoint. The strategic adjustment of relaxation timing, within a flexible range of 95 to 180 degrees from the initial feed point (based on a starting point of 270 degrees), is critical. Let’s delve into the meticulous process of optimizing the relaxation timing for clamp-type feeders:
1. Setting the Stage: Press Angle Configuration
Initiate the process by setting the press to the desired angle for feed initiation, typically ranging between 90-180 degrees.
2. Unleashing Precision: Clamping Screw Release
Release one of the clamping screws on the “relaxation adjustment wheel” to facilitate subsequent adjustments.
3. Aligning the Elements: Notch Adjustment
Skillfully adjust the notches on the “relaxation adjustment wheel” to align with the designated “relaxation notch” on the relaxation panel, ensuring impeccable timing.
4. Fine-Tuning: Rotating the Adjustment Wheel
Rotate one clamping screw on the “relaxation adjustment wheel” to fine-tune the relaxation timing according to the specific requirements.
5. Optional: No Relaxation Mode
For scenarios where relaxation is not desired, align with the “no relaxation” notch on the relaxation panel.
II. Perfecting Grip: Clamping Force Adjustment Strategies
The clamping force of a feeder, governed by springs, plays a crucial role in gripping and halting the feeder before operations commence. While generally well-adjusted for standard stamping, certain scenarios demand a nuanced approach, especially when dealing with delicate materials susceptible to clamp jaw damage.
1. Tailoring Clamping Force: Quick Gauge Adjustments
In scenarios demanding precision, adjustments to the thickness of the quick gauge become imperative:
- For feed edge quick gauge: Decrease thickness by 0.02-0.05mm.
- For stop edge quick gauge: Reduce thickness by 0.02-0.05mm.
2. Precision in High-Speed Operations: Extended Feed Length Adjustments
When operating at high speeds with an extended feed length, increasing clamping force becomes essential:
- For material edge quick gauge: Increase thickness by 0.02-0.05mm.
3. Advanced Adjustments: Spring Fine-Tuning
If altering the quick gauge thickness proves insufficient, especially for the stop edge jaw closer to the press, the spring adjustment sequence comes into play:
a. Tighten screws without spring replacement. b. Clockwise tighten the M20 fixing screw beneath the jaw facing the press for increased clamping force. (Note: Avoid removing the screw to prevent oil leakage.)
4. Spring Replacement Protocol
If spring fatigue persists, follow these steps:
a. Loosen the screw under the oil mirror on the left side of the feeder, draining the oil. b. Replace the spring, tightening the M20 fixing screw. Ensure Tape Seal usage on the screw to prevent oil leakage. c. Return the feeder to its original position, securing the four fixed screws to conclude the process.
It’s vital to exercise caution as excessive tightening may lead to material feed marks and accelerated wear of the adjustment cam, requiring special attention for sustained performance.