Vibraor Bowl Feeder with Hopper Elevator/ Bunker

Why Does a Vibratory Bowl Jam or Have Parts Flow Backwards? How to Solve It?

1. Main Causes
2. Incorrect Vibration Settings

• Amplitude:
  • Too Low: Parts can’t overcome friction, causing jams.
  • Too High: Parts bounce chaotically, leading to backflow or jamming.
• Frecuencia: Mismatched rhythm disrupts flow.

2. Track and Part Mismatch

• Worn/Damaged Track: Burrs or deformities obstruct flow.
• Incorrect Track Clearance: Too wide or too narrow.
• Poor Track Tooling: Ineffective orienting or sorting features.

3. Part Issues

• Poor Part Quality: Excessive burrs, flashing, or dimensional variation.
• Part Characteristics: Oily, very lightweight, or tangle-prone.

4. Environmental & Physical Factors

• Overfilled Bowl: Excessive pressure on parts.
• Static Electricity: Light parts cling to surfaces.
• External Vibration: Improper mounting or interference.

1. Systematic Solutions
2. Fine-Tune Vibration Parameters

• Adjust Controller: Start low, increase amplitude until flow is stable.
• Adjust Leaf Springs: Ensure they are tight and adjust the attack angle.

2. Inspect and Optimize the Track

• Clean and Polish: Remove all debris and smooth out burrs.
• Repair Track: Fix any deformed or damaged sections.
• Optimize Tooling: Ensure orienting devices work correctly.

3. Control Input and Conditions

• Ensure Part Quality: Use parts within specification.
• Control Material Level: Keep the bowl 1/3 to 1/2 full.
• Eliminate Static: Use an ionizing blower.
• Secure Mounting: Mount the bowl solidly and isolate from other vibrations.

4. Use Auxiliary Methods

• Apply Lubrication/Coating: Use dry lubricant or a non-stick coating.
• Add Air Assist: Install air jets to dislodge parts at trouble spots.

Summary: Jamming and backflow signal an imbalance between vibration energy and track resistance. The solution is a systematic process of tuning, inspection, and input control.