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20 February, 2012

Vibratory Bowl Feeders for Small Needles

Feeding of Needles from dia 1 mm to upto dia 6 mm at a very high speed requires a special type of bowl as well as a special type of vibrator. Very few companies in the world are capable of manufacturing such a vibratory bowl feeder. This type of bowl feeder is required to ensure that there is also need to make changeover from one size to another very easy and convenient for the operator. Hence, a special changeover tooling set is required which can help the changeover from one size to another fast and convenient. Lengths of Needles that can be fed through this parts feeder can go upto 30 mm. A very high speed can be achieved with this vibratory bowl feeder. Speeds upto 10 Meters per minute (1000 needles per minute for 10 mm length needles) can be achieved very easily. Further, proper outlet tube need to be provided with the changeover tooling for each size. Additionally, a cast aluminium bowl is required and it has to be lined with the proper material which helps the Needles to be fed properly. However, the loading capacity of such a bowl is less, for additional loading capacity, Silo is required. This increases the Bowl capacity tremendously and reduces the frequency of loading of components into the Feeder Bowl. The Silo is also is required to be coated with proper coating like he Elscinthane polyurethane lining to increase its life and improve its performance. For higher speed, a revolving cast aluminium dome is placed on the bowl which rotates in the same direction as the bowl, helping increasing the speed of the feeder. The Silo also needs to rotate along with the dome in order to eliminate jamming / bridging of needles inside the Silo. Further, if the dome is manually removed, the Needles fall into the Bowl Centre and can be collected outside due to the unique “Chute Plate” Design.

Monish Shet

Monish Shete is CEO of Elscint Automation, a 30 year old firm manufacturing vibratory bowl feeders and similar small part handing products. He personally has more than 25 years experience with last 15 years being with Elscint. This blog will help customers and laymen understand the intricacies of vibratory bowl feeders. One can find information about the finer aspects of vibratory bowl feeders which cannot be found anywhere else. Case studies and information about various innovative ways of feeding and orienting of different parts are given in this blog.


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