Elscint - BLOG Area | Everything about vibratory bowl feeders

Innovative Usage of Vibratory Bowl feeders - Feeding & Inserting of Plastic Filter into Regulator Housing

by Monish Shete 24. May 2016 06:14

Elscint recently supplied an integrated a vibratory bowl feeder for feeding of a small dia 12 mm x 3 mm plastic filter. The requirement was to first orient and feed the plastic filter through a vibratory bowl feeder, then singulate the same and push it into the Regulator Housing of the customer. The regulator housing was to be kept on an indexing table manually by the operator. Elscint’s scope was upto the insertion into the regulator housing. The insertion was to be 40 mm inside the housing, making it difficult as this had to be done during the indexing mechanism. Elscint used a small vibratory bowl feeder of approximately 200 mm in diameter (Model 160 with a cylindrical bowl) for this purpose. The filters were oriented in “rolling” orientation and taken vertically down where they were singulated with a cylinder. Then another cylinder having a 120 mm long stroke with guide rods was provided to push the filter into the Regulator housing. The cylinder time was 2 seconds per component and this was easily achieved. Elscint completed the equipment and its service engineer installed and commissioned the same at the customer’s factory in the South of India within record time. You can watch the video of the equipment.

Innovative Usage of Vibratory Bowl Feeders – Feeding ofr Coffee Cups

by Monish Shete 14. May 2016 11:53

Elscint  recently manufactured a bowl feeder for orientating and feeding of two types of coffee cup. One was having a diameter of 37 mm x 24 mm ht with a small flange. The other cup was slightly smaller in size. The requirement was to feed the cups in rolling orientation. Speed required was 100 parts per minute. Elscint used a stainless steel step design bowl, mounted on Model 400 for this application. The cups used to come in any direction. However, Elscint turned most of the cups and used 90% of the cups coming up. Hence, the speed achieved was more than 150 cups per minute. The cups were oriented in “Flange up” orientation in the bowl and further twisted to make them “rolling”. Then they were carried further in a vertical gravity chute. 600 mm before the end of the vertical chute, the cups were singulated using the patented Elscint Escapement mechanism with a Festo make ADN series double acting cylinder. This ensured that only one cup was released at a time, on receipt of a signal from the customer’s end. Elscint provided the complete system including F/R/L, solenoid etc. making integration with the customer’s machine very easy and fast. You can watch the video of the equipment.

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Innovative Usage of Vibratory Bowl Feeders - Orienting, Feeding & Blow Feed of Shoe Holder Pin

by Monish Shete 4. May 2016 08:56

Elscint recently supplied a vibratory bowl feeder for feeding of Shoe Holder Pin in two outlets. The pins were having dia 8 mm one side and dia 4 mm on the other side with the middle pin being dia 2 mm. The length of the pin was 30 mm. The requirement was to blow feed the pin with the bigger diameter forward in two outlets. Elscint used Model 250 with cast aluminium bowl having two outlets for this purpose. The pins were then oriented with the bigger diameter side on top and taken forward onto a linear vibrator, namely Model Elscint III. Thereafter, a fixture was designed to push the two pins with a single cylinder by 20 mm on one side and the pins were then blown up with air jets into flexible tubes to be used by the customer at two separate places. Elscint provided a complete solution with pneumatics and other elements so that the customer could give just a 24 V DC signal to activate the blow feed. 

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Innovative Usage of Vibratory Bowl Feeders - Feeding of O Ring flat on a linear vibrating track

by Monish Shete 24. April 2016 12:12

Elscint recently supplied a vibratory bowl feeder for feeding of O Rings flat on a linear vibrating track, one behind the other. The size of the O Rings was dia 15 x 3 mm Elscint used a stainless steel conical bowl for the same. Model 160 was used for this purpose. Linear Vibrator Model Elscint III with a 300 mm long track was used to get the parts straight ahead for pick up by the customer.



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Innovative Usage of Vibratory Bowl Feeders - Feeding of O Ring vertically

by Monish Shete 16. April 2016 08:30

Elscint recently supplied a vibratory bowl feeder for feeding of O Rings in vertical orientation. The size of the O Ring was dia 18 x 1 mm thk. Elscint used a stainless steel conical bowl for the same. Ahead of the bowl, a gravity chute was provided to get the parts straight forward in rolling orientation upto a distance of 220 mm from the bowl periphery (as required by the customer). Thereafter, the oil seals flowed vertically down, perpendicular to its previous path. The chute was 150 mm down from the bowl feeder mounting plate.




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Syringe feeding, Adhesive Dispensing & Piston pressing Machine

by Monish Shete 2. April 2016 03:43

Elscint recently manufactured a Syringe feeding, Adhesive Dispensing & Piston pressing Machine wherein a large plastic syringe of 45 x 28 x 104 mm length was fed through a big vibratory bowl feeder, namely, Model 630 with a bowl diameter of 1100 mm onto the first station of a 6 station indexing table. At the next station, two separate types of adhesives were dispensed into the two capsules of the syringe. After the dispensing was complete, the table was indexed and the piston was fed from another big bowl feeder, Model 630 once again. For both these bowl feeders, gravity chutes of almost 1 mtr. Length were used for providing sufficient buffer. The fourth operation on the indexing table was assembly and pressing of the piston into the syringe (20 mm inside). The fifth station was a “blank” one as they customer wanted to have a provision of checking of the adhesive, if required, in the future. At the sixth station, the dispensed and assembled syringe was ejected into a bin. The speed achieved was 28 parts per minute, including the dispensing of the adhesive. Siemens make S7-200 PLC was used along with Festo make pneumatics for the machine. You can watch the video of the equipment.

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Elscint supplies 6 bowl feeders for feeding for various parts of radiator cap

by Monish Shete 25. March 2016 10:06

Elscint recently supplied 6 bowl feeders for various components of radiator cap. The parts to be fed was a rubber washer, 3 parts were various types of metal washers, one was a cup & the last one was an assembly of 4 parts. The washers were having a thickness of just 0.6 mm, making them difficult to feed as there was a tendency of overlapping of two parts. Elscint recommended two bowl feeders of Model 160, one of Model 400 for the assembled part and the balance Model 250. Out of these three Model 250 vibratory bowl feeders, one was a step bowl made of cast aluminium, one was a conical shape bowl fabricated in stainless steel while the last one was a outer track bowl, again fabricated in stainless steel. Depending upon the component profile, the correct type of bowl construction was planned. All the bowls were coated with Elscinthane PU coating to ensure less noise as well as better performance and life. Out of the two Model 160 bowls, one was a step bowl made of cast aluminium with stainless steel tooling while the other was a conical one made fabricated in stainless steel. The Model 400 bowl feeder for the assembled part was a step type bowl made of cast aluminium with stainless steel tooling. In all cases, gravity track / chute was provided with a mounting base plate. A sensor was mounted on the chute to ensure that the bowl feeder is switched off once the chute was full. As against a requirement of 20 parts per minute, Elscint achieved a feed rate of between 60 to 100 for the various parts. All the bowl feeders were dispatched within a time frame of 6 weeks as per the requirement of the customer. 

Innovative Usage of Vibratory Bowl Feeders - Bowl feeder for 3 types of screws with head bigger than the length

by Monish Shete 13. March 2016 10:49

Elscint recently manufactured a bowl feeder for feeding of 3 types of screws where the head diameter was more than the length of the screw. Due to this the screws used to come with the head down / tail up. The customer had a Taiwan make bowl feeder for various types of screws. However, these 3 screws   could not be fed in that bowl feeder as the speed used to be less than 30 or 40 parts per minute. The customer required a speed of 120 to 150 parts per minute for each of these. Elscint manufactured a step type bowl with adjustable tooling to ensure that all the 3 types of screws could be fed with the least amount of changeover. Further, air jets were used to remove the wrongly oriented screws. A top guide, again adjustable was provided to ensure that the screws do not overlap at the outlet point. The bowl was coated with Elscinthane PU coating to ensure low noise level and easy movement.  

Innovative Usage of Vibratory Bowl Feeders - Elscint exports medical grade vibratory bowl feeder to France

by Monish Shete 4. March 2016 09:15

Elscint recently manufactured and exported a bowl feeder for an medical application to France. There were two components to be fed in the same bowl feeder, namely, Protecteur and Protecteur Long. Elscint manufactured tooling in such a way that there was no changeover at all. Both the components could be interchanged without any changeover. The requirement being a medical one, was that all the parts were to be made in stainless steel. Hence, the hopper too was to be made of stainless steel along with the mounting brackets, which were made from stainless steel square tubes. There was a noise enclosure, which too was made in stainless steel with medical grade acoustic foam inside. There was a level controller to ensure activation of the hopper. The noise enclosure was provided with a polycarbonate cover. The hopper too was provided with a similar cover. The mounting plate too was of stainless steel. A linear vibrator was provided ahead of the bowl feeder with a pneumatic singulator at the end. The singulator ensured a single component was singled out for pick up. SMC make pneumatics, including valve, F/R/L & cylinders were used. All the parts of the singulator too were made in stainless steel. Further, for the hopper, bowl feeder and linear vibrator, a single, multiple duty, electronic controller, namely, EMCP12 was used. EMCP12 is a digital controller with the provision for programming as well as air blow settings. The complete equipment was packed and dispatched by air freight to the customer in France. You can watch the video of the equipment. 

Innovative Usage of Vibratory Bowl Feeders - Feeding of Plastic Clips in four outlets

by Monish Shete 21. February 2016 06:41

Elscint recently completed a set of 2 bowl feeders for feeding of plastic clips. The clips were to be fed in four outlets at a centre distance of 50 mm from each other. Elscint recommended Model 250 EV bowl for feeding of the clips with two outlets each, thus using two bowl feeders. The speed required was 80 rivets per minute per outlet. Thereafter the clips were to be carried forward on a single linear vibrator with 4 tracks. As there were 2 tracks per bowl, proper overflow arrangement was required, which was provided with airjets. Sensors were placed on all the 4 tracks to ensure that once both the tracks are full, the respective bowl feeders were stopped. However, one major requirement in case of plastic clips was that orientation was to be made with respect to the slot on the top of the clip. This was made possible by providing a top cover with a provision to align the slot. Speed for these bowl feeders too was 80 parts per minute per outlet (4 outlets from 2 bowl feeders, one clockwise and another anti-clockwise). The complete project was completed with 6 weeks and installation and commissioning was provided at the customer site. 

About the author

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.