In the previous post, we had begun discussing about the common problems related to vibratory feeders. In this post, we will elaborate on the two remaining problems and their solutions.

Issues Occurring in Vibratory Feeders
The two problems given below are generally found when the feeder is performing its operation.

Problem: Intermittent Operation: The feeder is unable to run continuously for long periods of time. It also cannot perform at certain amplitude levels. Sometimes, the feeder will increase its amplitude without any particular reason.

Solution:

• The most obvious reason for this problem is that the feeder’s SCR controller is about to fail.
• It would wise to always keep a spare in hand in case this problem arises.

Problem: Decrease in Feed Rate: Cracked springs, loose feet, rusting, a broken weld seam, or no bowl cover can be the causes for a declining feed rate.

Solution:

• Usually the cracks in the springs are minute, and cannot be seen with the naked eye. Remove the spring from the feeder and throw onto a concrete floor with force. If the springs breaks, that means it is cracked.
• Tighten the rubber feet of the feeder. Check the feet for cuts, or if the rubber is too hard. If either of these has taken place, then the feet will need to be replaced.
• Inspect the rusted component. If it can be saved, disassemble the part, remove the dry rust, clean it, and then reassemble the drive unit. Use rust protecting lubricants to prevent rusting in the future.
• A broken weld seam is the result of the armature hitting the coil. Depending on the seam’s condition, you can re-weld it. Otherwise, a wiser decision to replace the coil.
• Ensure that the cover of the bowl feeder is in place and tightened. This will ensure that the feeder’s amplitude does not suffer from negative effects. Always keep the bowl covered during operation.

Most of the problems mentioned in these two post can be eliminated with maintenance. You can create a maintenance schedule to ensure that your vibratory feeder is always in good condition. Calculate an average time and amount of work the feeder has to perform in a year. Depending on this, you can choose a monthly, quarterly, bi-annually, or annually maintenance schedule.