29. August 2014 06:33
Elscint recently manufactured a bowl feeder for feeding of brass inserts. In fact, two bowl feeder were manufactured, one for feeding of brass inserts having dia 10.50 x 12.50 mm length and dia 13 x 12 mm length. The brass inserts were conical in shape, making the orientation difficult, especially for the dia 13 x 12 mm one as the length and the minor diameter were the same. However, the innovative tooling designed by Elscint ensured that the orientation was correct and possibility of wrongly oriented components was totally eliminated. Additionally, a linear vibrator was provided to ensure the components were taken ahead with a slot in the track for easy pickup of the components at the end of the track. The customer requested for frequency controllers for the bowl feeder and the linear vibrator as well as feedback control for the vibratory bowl feeder. This too was supplied. There were a total of 3 sets, which were delivered within 4 weeks of receipt of the order. Elscint used its Model 250 bowl feeder with Elscinthane PU coating. The brass inserts being metallic, with the Elscinthane PU coating, the metal to metal contact between the bowl surface and the inserts was avoided, thus reducing the noise considerably. You can watch the video of this bowl feeder for feeding of the small inserts and for the bigger size brass inserts
11. August 2014 03:38
Elscint recently supplied a vibratory bowl feeder for feeding of small plastic tubes having size diameter 20.5 mm x 21 mm length in “rolling” orientation to a customer in Russia. Elscint vibratory bowl feeder Model 400 with a cast aluminium bowl, duly coated with Elscinthane PU coating was used for this application. As the difference between the diameter and the length was marginal, extra care had to be taken to ensure proper orientation. This was especially necessary as the tubes had a lot of “flash” present. However, the robustness of the tooling ensured that the orientation was correct with not a single wrongly oriented plastic tube went forward. Further, a total of two outlets were provided with two gravity track, machined out of stainless steel. Two escapements were mounted at the end of these tracks which could be operated independently. Standard Elscint pneumatic escapements (which are patented) were used. The robust design and excellent build quality of the Elscint escapement assembly coupled with Festo make cylinder ensured that the escapement operates without any stoppage and jamming. You can watch the video of this bowl feeder for feeding of the plastic tubes
2. August 2014 08:10
Elscint manufactures an Auto Loading System for feeding of long length shafts for centreless grinding machines. Shafts having length from 90 mm upto 600 metre. These Shafts being of longer length, they cannot be fed from a vibratory bowl feeder. Feeding such a variety of shafts of various lengths and diameters in a vibratory bowl feeder also requires a lot of changeover tooling which increases the changeover time, making it unfeasible. Hence, keeping view of these problems, Elscint has developed the long length shaft Auto Loading System. The equipment consists of a pneumatic lifter unit and a belt conveyor for further feeding of the shafts to the grinding machine. The shafts have to be aligned and kept on an inclined table, from where a pneumatic cylinder singles out and feeds the shafts to a belt conveyor which further feeds the shafts to the centreless grinding machine. Proper synchronizing sensors ensure that the equipment works without any manual intervention. Options available include, firstly an X-Y adjustment of (+/-) 50 mm on either side, which is especially useful for wheel dressing. Height adjustmen too can be provided to ensure that the feeding system is compatible for shafts of various diameters. Another option which can be opted for is the variable speed for the belt conveyor. You can watch the video of the Auto-Loading System for longer length shafts for Centreless Grinding Machines.
28. July 2014 04:22
Elscint has developed a special type of bowl for feeding of “O” Rings of various sizes with very less changeover. “O” Rings having diameter from dia 5 mm to 60 mm and thickness from 0.8 mm to 5 mm can be fed in bowl. A special type of conical bowl is used for this wherein the “O” Rings are fed in bulk. The special design of the bowl ensures that even though the “O” Rings travel in bulk, they are segregated and singled out at the top of the bowl. This ensures that at the outlet position, only a single row of “O” Rings comes out. A special window makes “overflow” of the “O” Rings possible. This eliminates the possibility of any jamming of the “O” Rings while they flow from the bowl to the gravity or the linear track ahead. In a recently supplied bowl feeder for similar “O” Rings, which was supplied o Switzerland, Elscint additionally provided a gravity track with an pneumatic escapement mechanism to singulate and dispense a single “O” Ring at a time. The track was made of tool steel, hardened and ground and then nickel plated. In another bowl feeder for “O” Rings, also supplied recently, where the end customer was in Italy, a small horizontal linear track was provided with a non-vibrating portion at the end of the track for the part pick up by a pick and place unit. You can watch the video of this bowl feeder for feeding of the small "O" Rings and for the bigger size "O" Rings.
12. July 2014 06:49
Elscint recently supplied a special vibratory bowl feeder for stacking of metal parts having dimensions 25 mm x 27 mm x 4 mm thickness. There was a chamfer on one side which needed to be always on one side, making the orientation complicated. Elscint used a Model 400 double start conical bowl for this purpose. The parts were oriented and fed into a gravity chute and thereafter, they were stacked by pushing them onto a 500 mm long track with a pneumatic cylinder. Elscint provided sensors at various positions to ensure proper synchronization. The equipment was meant to work on 110 V/ 60 Hz input supply as it was exported to the USA. The speed required was high and hence Elscint fabricated a double start bowl and then converged both the tracks into a single one giving a single output with high speed. The position of the final stack was also different from the way the parts were oriented in the bowl and hence the part orientation was changed in the bowl before they moved onto the gravity track. The bowl was coated with Elscinthane PU coating for two reasons, firstly to reduce the noise level by eliminating the metal to metal contact between the bowl and the components and secondly, to ensure that the plating on the parts does not get damaged due to constant movement on the surface of the bowl. Elscint used Model 400 HD vibratory drive with a stainless steel conical design double start bowl for this application. Further a Frequency Controller was provided to ensure that any change in input frequency or voltage does not affect the output. You can watch the video of this bowl feeder for stacking of the metal parts
6. July 2014 10:31
Elscint recently completed an order for feeding of components related to the stationary industry. One part was for feeding of “compressor bar”, which is used in box files. The requirement was to get these parts which were having length of 130 mm x 18 mm width in lengthwise position with “face orientation” ensuring that the plastic lock was always at the top. The customer also wanted to eliminate the parts where the parts were “locked” i.e. the lock was down. When the parts were “locked”, the height of the part with face up and face down was same, leading to difficulty in eliminating the same. However, Elscint provided a special type of tooling to ensure that the “locked” parts too get eliminated. Elscint used it Model 400 with a stainless steel step type bowl with Elscinthane PU coating for this purpose. A speed of 50 parts per minute was achieved. You can watch the video of this equipment.
22. June 2014 08:15
Elscint recently completed an order for feeding of components related to the stationary industry. One set was for rivets having head dia 9.5 mm x 9 mm ht. which needed to be fed in orientation of “head down”. The requirement was for 4 outlets with a speed of 60 parts per minute per outlet. Hence, Elscint supplied two bowl feeders, each with two outlets and a single 4 track linear vibrator for feeding these in a total of 4 tracks. Both the bowl feeders were mounted on a single base plate making it easy for the customer to integrate the same with his machine. Overflow provision i.e. ensuring that in case any of the tracks is stopped, the balance rivets fall back into the bowl, was ensured in case of each of the four rows. The bowls were coating with Elscinthane PU coating to ensure the noise level was less and additionally diminishing the chances of any damage or discolouring of the rivets due to continuous movement on the metallic surface of the bowl. Elscint could achieve a speed in excess of 250 rivets per minute per row. There being sensors on the linear track to switch off the bowl feeder, the excess speed was automatically adjusted with the customer’s machine. The bowl too was designed in such a way that 10 kgs of rivets could be accommodate in the bowl at any given time. You can watch the video of this equipment.
10. June 2014 06:17
Elscint recently manufactured a counting & dispensing system for ear plugs. The requirement was to count and dispense 12 ear plugs at a time (12 times a minute). These 12 ear plugs had to be packed in a single box. Presently this was done manually and resulted in mistakes on the part of the operator whereby either short or extra ear plugs were packed. To resolve this problem, Elscint offered a vibratory counting and dispensing system. In this equipment a set number of ear plugs are always dispensed on pressing of a foot switch. Additionally, dispensing can also be activated by sensing the hand of the operator as soon as he puts his hand to collect the ear plugs. This ensures the operator gets the required number of ear plugs for packing. The chances of mistakes by wrong counting of the ear plugs is eliminated as he gets the required number of ear plugs in his hand and further dispensing does not take place unless all these ear plugs are packed. This system is very useful for all such types of packing requirements. The equipment comes along with a stand, dispensing chute with bin, electrical and pneumatic controls. There is an additional sensor on the dispensing chute which switches off the vibratory feeder when the chute is full. This ensures that in case the operator is not around or the packing line is not working due to some reason, the operator does not have to switch off the entire system. Once he presses the foot pedal / button / places his hand for collection, the cycle commences once again automatically. Poka yoke too is provided to ensure that even in case where there are less or no ear plugs to dispense, the dispensing does not take place even after pressing the foot pedal / button / hand signal. The number of ear plugs which need to be dispensed in one lot can be changed by the operator, in case the requirement changes in the future. You can watch the video of this equipment..
3. June 2014 05:25
Elscint recently supplied a special vibratory bowl feeder for feeding of condoms in 4 rows. The speed or feed rate achieved was 75 condoms per minute per row in 4 rows. Elscint Model 630 is used for this purpose. Further a one meter long four track linear vibrator (Model Elscint IV) was used to convey the condoms forward. The major problem with condoms is that they are rubbery and lubricated, making them slippery. This results in the speed being very less as the friction between the condoms and the bowl track is reduced, which does not allow them to move forward properly. However, Elscint provided a special type of bowl made of stainless steel for this purpose. Full welding was done at all areas to ensure that there were no crevices for dust accumulation. Another important point is that the mounting of the bowl has to be from outside to ensure that dust does not get accumulated in holes made for the screws required for bowl fixing. Hence, Elscint ensured the mounting was on the outer side on 12 screws. There being 4 outlets, proper overflow of parts was required and this too was taken care off. The condoms being in various shapes, another possibility is that of overlapping and jamming. However, Elscint has perfected appropriate tooling for this type of bowl which eliminates this problem totally. Thus the feeding is very smooth without any overlapping or jamming. The fabricated bowl was having a diameter of more than 1300 mm. You can watch the video of this bowl feeder for feeding of condoms..
23. May 2014 03:46
Elscint has developed an automatic stacking & indexing machine for stacking of Chain plates. Various sizes of plates can be stacked in the same machine with some changeover tooling. Chain Plates are having two holes and forks were provided to engage both the holes while stacking. The plates were having a particular number and brand marking only on one side. Elscint utilized a vision camera to check the marking and ensuring that the plates with marking on the top were stacked in one fork while the ones with the marking at the bottom were stacked in another fork.
The equipment was designed for accommodating Chain Plates having size 45 mm length x 20 mm width to plates having size 26 mm length x 10 mm width. This was done by providing proper changeover tooling. The equipment consisted of a Model 400 vibratory bowl feeder (having capacity of 30 kgs), a motorized belt conveyor on which the vision camera was mounted, sorting mechanism and stacking forks mounted on an indexing table. In the vibratory bowl feeder, the chains were oriented in lengthwise direction and were further taken forward on a motorized belt conveyor. The vision camera mounted on the same checked whether the marking was on the top or at the bottom. The ones where the marking was on the top, were pushed into a separate track and stacked onto one set of forks while the ones with the marking at the bottom were taken forward and stacked in another set of forks. In case, any of these forks got full, the conveyor would stop and indexing used to take place. After indexing, the next set of forks would come the stacking position and filling of plates in the forks would restart. The complete equipment was mounted on a single table and controlled by a PLC with the controls provided through a separate MMI. Some plates were having no marking on either side or marking on both the sides. Such plates were pushed into alternate forks. This changeover was done through the MMI, thus requiring minimal operator intervention. The indexing table accommodated 8 sets of forks, thus ensuring the time between loading and removal of plates by the operator was correctly matched with the other equipment in the factory of the customer.
The advantage of this equipment is to eliminate the need of manually checking which side of the plate the marking is present and to stack the plates in a fork for further assembly operation. With the help of this equipment, the plate stacking can be made an off line activity with the forked plates readily available for usage as an when required. Similarly any component having a hole in it like a bearing ring, cage, o-ring, washer etc can be stacked in this machine. You can watch the video of this equipment.