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
16. August 2015 10:21
Elscint recently manufactured a vibratory parts feeder for a very heavy CI casting. The cast iron casting was not machined and had a weight of 300 gms. The requirement was to orient the parts with respect to one side being up and feed them onto a gravity chute wherein they would be punched on one side. Thereafter the same were to be taken forward onto a vibrating track with holes to ensure that the residual oil in the castings was removed. Elscint
Elscint recommended Model 400 HD vibratory drive with a stainless steel bowl with a diameter of almost 850 mm. This model has a capacity of 40 kgs and hence more than 100 parts could be accommodated in the bowl. The part being heavy and metallic, a lot of noise was expected and hence, Elscint provided Elscinthane polyurethane coating on the complete bowl including the tooling parts to ensure that the noise level was minimized. Elscinthane polyurethane lining has not only a very high life but also ensures longer life for the bowl. Further it has excellent dampening properties, reducing the noise level drastically. The parts being oily, a rough texture was given for the Elscinthane PU coating to ensure that even the oily components move forward with ease. As mentioned above, a gravity chute with auto-switch off mechanism and Elscint’s patented pneumatic escapement was provided with a vibrating tray after the parts were singulated. The complete system was mounted on a stand with noise dampening leveling screws.
5. August 2015 22:21
Elscint recently supplied three feeding systems for feeding of flat washers from dia 25 mm to dia 70 mm and having thickness of 1.5 mm to 6 mm for feeding to centerless grinding machines. Due to the wide variation between the washer sizes, the customer required an “X” adjustment of 100 mm. Hence, Elscint provided its standard 100 mm “X” Adjustment along with a “Z” or height adjustment of (+/-) 125 mm. Another requirement was that the washers should be pushed into the grinding machine and the space available for the feeder was almost 800 mm away from the machine work rest. Therefore, Elscint supplied a 800 mm long belt conveyor with a variable frequency drive to ensure that the washers are carried forward and further pushed into the work rest as per the client requirement. The complete system consisted of a control panel with 3 phase input supply and a sensor on the conveyor which ensured that the vibratory bowl feeder switched on / off once the conveyor belt was full of washers. One system was supplied intially and the customer used it for more than 3 months. After he was completely satisfied with the performance of the same, the balance two were supplied. This feeding equipment resulted in an increased productivity of almost 25% for the customer.
27. July 2015 02:08
Elscint recently manufactured two sets of vibratory feeding systems for feeding of uranium pallets. There were two bowl feeders per set, one to feed dia 5.6 x 6 mm pallets while the other was for feeding of dia 5.6 x 7 mm pallets. One type of pallet was to run at one time. Thereafter, they were to move on a 1500 mm long linear track. However, the first track was of 1100 mm length and the second, mounted on a separate linear vibrator was to be of 400 mm length. The first track was laser marked with a scale on both sides to ensure that the operator knows at what level the pallets were filled. There were provisions made for fixing stoppers and gauges at various points as per the customer request. Further, for ease of operator usage, the two bowl feeders were kept on an X-Y Slide provided with a handle to ensure ease of movement / changeover. The uranium pallets being radioactive, the complete system was to be kept in an enclosure with a maximum opening of 220 x 220 mm and hence, one more requirement was to ensure that the dimensions of the equipment were such that the complete unit, in semi-assembled state, would fit in the above mentioned opening. The electrical panel was housed in a separate control box with a foot pedal provided for stopping of the equipment.
13. July 2015 11:40
Elscint recently manufactured a vibratory bowl feeder for feeding of plastic rivets in 6 rows. The rivets were small ones, having dia 10.60 mm x tail dia 6.40 mm x 12.30 mm ht. The requirement was to feed the rivets in 6 rows at a centre distance of 50.47 mm at various uneven points at a speed of 60 parts per minute per row. Elscint recommended its Model 400 HD with Linear Vibrator Model Elscint II HD. Model 400 HD has a bowl diameter of more than 700 mm ensuring a lot of loading capacity, eliminating the need of a separate hopper and level control. A speed of between 60 to 120 parts was observed in the various rows. A major requirement in case of multiple outlets is that there should be proper overflow arrangement to ensure that once a particular track is full, the excess rivets are either diverted to another track or fall back into the bowl. Elscint ensured that this was taken care off. The rivets being white in colour, Elscinthane coating was provided on the bowl to ensure that they do not get coloured or dirty during usage in the stainless steel bowl. The equipment was supplied to a customer in Canada and hence was made to work on 110 V / 60 Hz input power. Confirmation videos were sent to the customer for his approval and then the system was packed and dispatched by air freight mode to Canada.
6. July 2015 08:58
Elscint recently completed an eight vibratory bowl feeder order from a reputed machine builder. The machine builder was building a machine to assembly 12 parts of a faucet. All the parts were of plastic and of various shapes and sizes. Top cap and certain other parts were easy to orient but some like the “main body” and “nozzle” were most difficult as there was no way to hold the same. Further, along with each bowl feeder, a linear track of suitable length was supplied with auto-switch off mechanism dn mounting arrangement. The customer was mounting all the bowl feeders on his machine and hence each one was supplied on a base plate. A non-vibrating portion at the end of the linear track was provided for each unit to ensure that the customer’s pick and place mechanism could pick up the same easily without any accompanied vibrations. For ease of the customer, Elscint supplied 5 systems within 6 weeks of the order and balance after 12 weeks when rest of the assembly machine of the customer was ready.
23. June 2015 05:16
Elscint recently provided an auto loading feeding system to a reputed Duplex Grinding Machine manufacturer for feeding of bushes having dia 14 mm x 30 mm length to their duplex grinding machine. The bush ends were to be ground and hence the orientation required was “rolling”. The bushes used to come in axial direction in the bowl feeder and hence Elscint provided a special mechanism to ensure that the bushes stand up and then the same were twisted in a gravity chute to make them rolling. Proper poka yoke was provided to ensure that the components come only in the right direction. The scope of supply included, a stand to mount the vibratory bowl feeder, twisted gravity chute, noise enclosure, level control to provide indication about less parts in the bowl and a control panel with isolating transformer as the customer provided 3 Phase supply from their machine. Elscint not only supplied the equipment on time but also provided commissioning of the same at the customer’s factory.
14. June 2015 11:07
Elscint recently provided auto loading feeding systems to a reputed centerless grinding machine manufacturer for feeding of long length shafts for centreless grinding machines. The length of the shafts was between 95 mm to 120 mm but one side of the shaft was having a small chamfer which required orientation. As this orientation was not possible in a vibratory bowl feeder, Elscint recommended an Auto Loading Feeding System. The diameter of the shaft was between 8 mm to 12 mm. The equipment consisted of a pneumatic lifter unit and a belt conveyor for further feeding of the shafts to the grinding machine. The shafts had to be aligned and kept on an inclined table, from where a pneumatic cylinder singled them out and fed the shafts to a belt conveyor which further fed them to the centreless grinding machine. Proper synchronizing sensors ensured that the equipment worked without any manual intervention. Options provided included an X-Y adjustment of (+/-) 50 mm on either side, which is especially useful for wheel dressing. Height adjustment of (+/-) 50 mm too was provided to ensure that the feeding system was compatible for shafts of various diameters. The conveyor speed was kept variable by providing a VFD drive. Elscint supplied two similar systems to the Grinding Machine Manufacturer and even commissioned the systems by integrating the same with their machine at the works of the manufacturer proving the same in front of the end customer. You can watch the video of the Auto-Loading System for longer length shafts for Centreless Grinding Machines.
6. June 2015 09:16
Elscint recently supplied a vibratory bowl feeder for three types of threaded plastic plugs. One side of the plug was open while one was closed. The requirement was to get the parts in open side facing ground orientation at a speed of 130 parts per minute. The end customer was in the USA and hence the requirement was for the equipment to run on 110 V / 60 Hz supply. Elscint provided 110 V / 60 Hz coils for this requirement on its Vibratory Bowl Feeder Model 400 HD. Additionally, a 850 mm long linear track mounted on a Elscint II HD linear vibrator was provided. The complete assembly was provided on a stainless steel base plate. All mounting plates were manufactured in SS 304. Further frequency controllers were provided for the vibratory bowl feeder and the linear vibrator for ease of operation.
23. May 2015 06:35
Elscint has developed a lot of expertise in manufacturing vibratory bowl Feeders for blood bag components. The main requirement is for feeding of parts like the threaded stopper and hub cover, which go into the blood bag as well as saline bags. Orientation and feeding of the “threaded stopper” is quite easy but the “hub cover” is quite difficult to orient and secondly, getting the required speed / feed rate is a challenge. However, Elscint has developed a very modular design for its bowl which makes it easy to achieve various speeds. Speeds of upto 200 parts per minute are possible. Further, being medical parts, a medical grade bowl made of stainless steel with proper welding and polishing is required. In case of a recent order, the orientation required for both the parts was “rolling with pointed side towards bowl centre”. Additionally, Elscint provided a gravity chute with a sensor to ensure that the bowl feeder got switched off once the chute got full. The bowl feeders were supplied along with Frequency Controllers of suitable rating.