23. November 2015 04:12
Elscint recently manufactured a vibratory bowl feeder for feeding a very thin contacts. The parts were having size 4 mm x 3 mm x 0.5 mm thickness with two slits on one side. The requirement was to get the slits towards the bowl centre as the contacts moved lengthwise. Due to the parts being very thin, there was a tendency of the parts coming double or jamming at the outlet. However, in the specially designed bowl feeder manufactured by Elscint, these possibilities were totally eliminated, resulting in smooth flow the parts at a high speed of 150 parts per minute. Linear vibrator with 250 mm long track with a sensor attached to the same to switch off the bowl feeder was provided. Additionally, height adjustment of (+/-) 30 mm was provided for the bowl feeder and linear vibrator to make it easy for the customer to integrate with his system. The complete bowl was fully machined from stainless steel on a 5 Axis Vertical Machining Centre for achieving the required accuracy. You can watch the video of this bowl feeder.
10. November 2015 03:19
Elscint recently completed an order for a major multinational company where the requirement was to feed two types of metal parts with open side leading on to a centerless grinding machine. Both parts were having different geometries and hence, one part had to be oriented by making it stand up while the other part had to be oriented with respect to its weight balance. This resulted in the orientation tooling being very different for both the parts. However, Elscint provided a very easy changeover tooling to ensure operator ease. There were a total of 4 bowl feeders and Elscint ensured that all the tooling was interchangeable between all the 4 bowl feeders. Additionally, the requirement was for a 35 litre hopper feeder or stock feeder for extra loading capacity. There was a round belt conveyor ahead of the bowl feeder for further taking the parts upto the grinding machine. The customer was a 100 mm “X” Adjustment. This was provided and fine tuning of the same could be done with the help of a wheel. A zero to fifteen degree tilting provision was also provided. The whole structure was mounted on aluminium extruded sections and a polycarbonate aluminium guarding was provided for the complete machine. The centerless grinding machine was to be purchased from Japan and hence Elscint arranged to pack and transport one unit for trials to the Machine manufacturer in Japan. It was then sent back to India along with the grinding machine. The belt conveyor too was made from aluminium extruded sections and was driven by Elscint Geared Motor Model DM 38.
3. November 2015 05:02
Elscint recently completed two bowl feeders for feeding of very small curved chain links in 4 outlets each from each of these two bowl feeders at a speed of 180 chain links per minute per row. The chain links were required in same direction for both the bowl feeders. The weight of the chain links, being curved, was on one side and hence getting the required speed was possible in case of one bowl feeder. However, in case of the other bowl feeder, the weight being on the other side, the speed was much less. Hence, Elscint made a total of 8 rows and converged two rows into a single row, ensuring the required speed. The chain links were having thickness of just 0.6 mm and hence, proper tooling was made to ensure that they do not overlap and jam. Proper overflow arrangement was also provided for both the bowl feeders. . Another requirement of the customer was a 300 mm straight portion at the end of the bowl, attached to the bowl feeder. This too was provided with a top acrylic cover to ensure that there is not jamming. Elscint used its Model 400 with an outer track bowl. The total diameter of the bowl was dia 850 mm.
24. October 2015 07:52
Elscint recently manufactured three vibratory bowl feeders for three parts of a razor blade. The first was the top cap which is fitted on the top of the blade with a moisturizing strip attached to it. One particular orientation was required with a speed of 120 parts per minute per row in two rows.
The second part was the protective cap which is the protective cap fitted on top of the blade during packing and handling. The speed here too was 120 parts per minute per row in two rows.
The third part was “Seat”, which is the base on which the blade is fitted and the balance two parts fitted on. This too required a speed of 120 parts per minute per row in two rows.
The orientation possibilities for each of these parts were six and hence providing the required speed was very difficult, if not impossible for most manufacturers. However, Elscint took this up as a challenge and completed all 3 bowl feeders with zero wrong orientation and a speed of between 125 to 140 parts per minute per row (2 rows). Elscint used its Model 400 with an outer track bowl. The total diameter of the bowl was dia 850 mm. Proper overflow arrangement was provided for all the 3 bowl feeders.
15. October 2015 11:29
Elscint recently manufactured a special and small vibratory bowl feeder for feeding of saffron pieces. Saffron is a highly costly item and needs to be packed in very minute quantities from 1 gm onwards. The end use was for weighing and packing of the saffron pieces and hence high accuracy and very accurate and precise feeding was required. Elscint used its Model 160 with a stainless steel cylindrical bowl for this application. The specially designed bowl ensured that a very minute quantity was dispensed but the speed at which it was dispensed was very high. Additionally, a frequency controller was provided with the provision for varying the speed of the vibrator through a PLC so that the packing machine manufacturer could use various speeds to fill the required quantities of saffron at high speed
5. October 2015 04:18
Elscint recently manufactured a special and small vibratory bowl feeder for feeding of small balls having diameter dia 4.76 mm. The customer required three outlets with gravity tubes for each of them. Balls have a tendency to roll back in a bowl feeder and do not move up the track. However, in the special type of bowl designed by Elscint, this does not take place. A bowl having diameter 250 mm was fabricated and a speed of 200 balls per minute per outlet was achieved. There being 3 outlets, proper overflow was required for each of the outlets and the same was provided by making a special arrangement. The tooling ensured that even the last ball got fed. Flexible tubes of 1 mtr. Length were attached to each of the outlets for connection to the customer fixture.
20. September 2015 05:26
Elscint recently manufactured a vibratory bowl feeder for large rings. There were two types of rings, both having diameter 66.50 x 28.50 mm ht. However, the internal as well as some external dimensions of both these rings were different. As the rings were large and heavy, Elscint recommended its Model 630 with a stainless steel bowl. The rings required orientation with respect to their face. These was ensured in the bowl itself. Further, the rings being metallic and heavy, they made a huge noise. Hence, Elscint provided Elscinthane PU coating to ensure that there was no metal to metal contact between the rings and the bowl, thus reducing the noise level drastically from 85 db to less than 80 db. Further, a circular noise enclosure lined with acoustic foam was provided to further dampen the noise and get it below 70 db. The scope of supply further consisted of a gravity chute which would convey the rings upto the conveyor of the customer and a stand with (+/-) 50 mm height adjustment.
13. September 2015 08:38
Elscint recently manufactured a vibratory bowl feeder for feeding of aluminum caps of two sizes. The dimensions of the caps were dia 18.2 x 15 mm ht. and dia 15.50 x 12.80 mm ht. respectively. Elscint recommended its Model 250 with cast aluminium bowl with Elscinthane PU coating. Changeover tooling was provided to ensure that each of these caps were fed in the correct orientation without any problem. The required speed was 60 parts per minute. However Elscint achieved a speed of more than 200 caps per minute in the correct orientation. Further proper overflow arrangement was provided so that even if the customer did not provided a sensor in his chute, the caps would keep falling back into the bowl.
6. September 2015 08:23
Elscint recently manufactured a bowl feeder for big plastic caps. There were two types of caps, one having diameter 51 mm x 50 m ht. while the other was having diameter 47 x 33 mm ht. Both the caps need to be fed in open side facing ground orientation at a speed of 120 caps per minute. The scope of supply was a vibratory bowl feeder, gravity chute with auto-switch off mechanism and a single post stand to mount the above. There was a tendency for the top lead of one of the caps of coming out. Hence, Elscint provided an arrangement to remove the caps and leads which were disengaged and a tray with mounting arrangement was provided to collect the same. The dimensions of the caps were such that they would come in axial direction and hence airjets were required for ensuring that they change their orientation. Further, the percentage of wrongly oriented caps was almost 30% and hence, instead of removing them by allowing them to fall back into the bowl, Elscint took them forward in another track and twisted them. Thereafter, they joined back into the main track. This helped achieve the required speed.
23. August 2015 11:19
Elscint recently manufactured a vibratory bowl feeder for feeding of plastic douser cover for a customer in Switzerland. The requirement was to feed the parts at a speed of 44 parts per minute per outlet in a correctly oriented condition. The customer already had a German bowl feeder which was doing the job at a speed of around 50 parts per minute per outlet with the use of air jets for orientation. However, Elscint managed to achieve a speed of 90 parts per minute per outlet without the use of air for orientation. The part was assembled in a medical device and hence the requirement was very stringent. Elscint provided outer fixing for the bowl to ensure that there was no screw inside the bowl. Further the covers of the linear tracks were to be fixed with hex screws. The linear track covers too were to be fixed with easily removable screws. Additionally, there was a requirement for a gate for easily empting the bowl feeder. All the material for manufacturing was to be in stainless steel with the mounting plate in aluminium. The vibratory bowl feeder as well as the linear vibrator too was covered in stainless steel from all sides. The controller provided was a digital one, namely EMCP12 which combines controllers for vibratory bowl feeder, linear vibrator and hopper in a single box with programming facility. Elscint Model 250D EV was used along with Linear Vibrator Model Elscint I. You can watch the video of this bowl feeder for feeding of the plastic douser