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Elscint - BLOG Area | Everything about vibratory bowl feeders

Innovative Usage of Vibratory Bowl Feeder - Vibratory Bowl Feeders to feed port cap & Slip Ring

by Monish Shete 11. April 2014 04:34

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 port cap and slip ring, which go into the blood bag as well as saline bags. Orientation and feeding of the port cap is difficult due to the fact that they part is flexible and can turn or twist in any direction. Similarly, the slip ring too is flexible and extremely small. Further, there are various types of slip rings (six of them in this case). This makes it 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 high speed. Further, being medical parts, a medical grade bowl made of stainless steel with proper welding and polishing is required. Along with this, Elscint provides a European make controller for controlling the speed of the vibratory feeder. Frequency as well as voltage controllers can be provided as per the customer specifications.  

Innovative Usage of Vibratory Bowl Feeder - Vibratory Bowl Feeder for feeding small Pins

by Monish Shete 6. April 2014 10:48

Recently, a customer approached Elscint, the leading vibratory bowl feeder manufacturer from India for feeding of small 8 pins having diameter of just dia 2.2 and length varying between 3 mm to 10 mm. All the pins had one end flat while the other end was slightly tapered. The customer wanted all these to be fed in the same bowl feeder with the least possible change over time. Elscint provided a solution with its Model 100 Vibratory bowl feeder with 8 changeover bowls. A separate bowl was made for each of the pins. The bowl was replaceable with a single M6 screw making the changeover fast and easy for the operator. All the bowls were fabricated from stainless steel and had a diameter of 130 mm. The vibratory bowl feeder used was Model 100 which is having a 15 VA rating and is full wave in operation. Due to its full wave operation, the current consumption is very less and it can work for 24 hours continuously. Additionally each of the bowls had a separate outlet chute attached to it, further making the changeover process easier. You can watch the video of the Elscint Bowl feeder for feeding the pointed pins.

Innovative Usage of Vibratory Bowl Feeder - Vibratory Bowl Feeders for Needle Rollers

by Monish Shete 22. March 2014 12:33

Elscint has developed a high speed Vibratory Bowl Feeder for feeding of rollers of dia 6 mm with 20 mm length. A special cast aluminium bowl has been developed for this. The bowl is mounted on the Elscint vibratory drive Model 250. A very high speed can be achieved with this vibratory bowl feeder. Maximum speeds of 16 meters per minute (800 Pcs per Minute for 20 mm length rollers) can be achieved very easily on this bowl. Output tube is provided so that the rollers can be used wherever required. The cast aluminium bowl is lined with Elscinthane Polyurethane spray bowl lining which helps the rollers to be fed properly. As the Elscinthane lining has very high shore hardness, it increases the life of the bowl tremendously. A 200 kg stock hopper with a level controller is provided for increasing the loading capacity. This ensures continous manless operation of the equipment for longer times. The stock hopper is mounted on a Elscint Linear Vibrator Model Elscint II which has a start stop provision based on the quantity of rollers in the bowl. As the quantity goes down, the linear vibrator starts, thus loading the rollers into the bowl. Once the preset level is reached, it stops automatically.

Innovative Usage of Vibratory Bowl Feeder - Vibratory Bowl Feeders for Needle Rollers

by Monish Shete 22. March 2014 12:32

Elscint has developed a high speed Vibratory Bowl Feeder for feeding of rollers of dia 6 mm with 20 mm length. A special cast aluminium bowl has been developed for this. The bowl is mounted on the Elscint vibratory drive Model 250. A very high speed can be achieved with this vibratory bowl feeder. Maximum speeds of 16 meters per minute (800 Pcs per Minute for 20 mm length rollers) can be achieved very easily on this bowl. Output tube is provided so that the rollers can be used wherever required. The cast aluminium bowl is lined with Elscinthane Polyurethane spray bowl lining which helps the rollers to be fed properly. As the Elscinthane lining has very high shore hardness, it increases the life of the bowl tremendously. A 200 kg stock hopper with a level controller is provided for increasing the loading capacity. This ensures continous manless operation of the equipment for longer times. The stock hopper is mounted on a Elscint Linear Vibrator Model Elscint II which has a start stop provision based on the quantity of rollers in the bowl. As the quantity goes down, the linear vibrator starts, thus loading the rollers into the bowl. Once the preset level is reached, it stops automatically.

Elscint Frequency Controllers

by Monish Shete 17. March 2014 04:09

Elscint has got three models of its Frequency Controllers, namely, EFQC6, EFQC4.5, EFQC3 & EFQC1.5. EFQC6 is suitable for large vibratory bowl feeders having VA rating of more than 1500 VA while EFQC4.5 is for smaller vibratory bowl feeders having VA Rating of upto 990 VA. EFQC3 is for vibrators of 380 VA Rating while very small vibrators upto 200 VA require EFQC1.5 Main features of these Frequency Controllers are –

 

1.   Frequency Adjustment – The major advantage of using a frequency controller is that one can adjust the output frequency of the controller to get the best resonant frequency at which vibratory feeder works best, eliminating the need for manually tuning the vibratory feeder.

2 Automatic Voltage Regulation This feature helps to eliminate the speed variation caused due to mains voltage fluctuation.

3.   Automatic  Frequency  Adjustment   In  case  the  input  frequency  changes  (due  to  genset operation), the output frequency remains the same at the preset level.

4.   Maximum Output Voltage Adjustment This provision helps to adjust the maximum output voltage, which in turn reduces chances of damage to a vibratory feeder.

5 Overheat Protection If the internal voltage in the controller increases, it switches off.

6.   Overload cut-off In case the vibrator current increases its rated value, there is a provision of overload cut-off

7.   Provision of 1 sensor output is available in all these controllers

8.   Provision of remote control (through PLC) is available except for EFQC1.5

 

The technical specifications of these Frequency Controllers are given in the below chart

 

Particulars

EFQC1.5

EFQC3

EFQC4.5

EFQC6

 

 

 

 

 

Input Voltage Range

220 V AC

220 V AC

220 V AC

220 V AC

Output Voltage Range

0 V to 260 V

0 V to 260 V

0 V to 240 V

0 V to 260 V

Output Frequency

40 Hz to 180 Hz

40 Hz to 180 Hz

5 Hz to 180 Hz

40 Hz to 180 Hz

Vibrator VA Rating

Upto 200 VA

550 VA

990 VA

3000 VA

Voltage             Adjustment

Accuracy

1 V

1 V

1 V

1 V

Frequency         Adjustment

Accuracy

0.1 Hz

0.1 Hz

0.1 Hz

0.1 Hz

On / Off Delay – 2 sensors

0 to 20 sec

0 to 20 sec

0 to 20 sec

0 to 20 sec

PLC Control

Start Stop possible

from PLC

Variation          of

speed through PLC    possible with          0/10V-0/20mA input

Variation          of

speed through PLC    possible with          0/10V- 0/20mA input

Variation          of

speed through PLC    possible with          0/10V- 0/20mA input

Soft Stop Provision

Available

Available

Available

Available

Locking provision

Possible

Possible

Possible

Possible

Sensor

PNP

PNP

PNP

PNP

Amplitude Sensor

 

Not Possible in normal version but Version with Amplitude Sensor is available

Soft Start time

0 to 10 sec

0 to 10 sec

0 to 10 sec

0 to 10 sec

Display

Digital LED

Digital LED

Digital LED

Digital LED

 

Thus, the major advantages of using a Elscint Frequency Controller are

 

1 No variation in case of input frequency change (genset working)

2 Mechanical Adjustment of the Vibratory Bowl Feeder / Linear Vibrator is not required

3 The resonance frequency once determined remains stored even after the loss of power

4 No need to change the coils / springs / vibrator in case of 50 Hz and 60 Hz input

5 No variation in case of input voltage fluctuation

6 It is Short Circuit Proof

7 There being no Potentiometer on the Controller (there are up / down buttons), changes of any misuse is eliminated. Locking arrangement possible.

 

 

Innovative Usage of Vibratory Bowl Feeder – Feeding of Aluminium Tubes

by Monish Shete 3. March 2014 08:26

Elscint recently manufactured a vibratory bowl feeder for feeding of aluminium tubes of various sizes. There were a total of 4 tubes. However, in all the tubes, the diameter was more than the length. The diameters ranged from dia 41 mm to dia 45 mm and the heights of the tubes were from 29 mm to 32 mm. The orientation required was “rolling”. Elscint tooled the bowl in such a manner than there was no changeover required at all for all these sizes. For accommodating a large quantity of tubes, Model 630 with a bowl having diameter of 1100 mm was used. The bowl was fabricated in stainless steel and coated with Elscinthane polyurethane coating in order to reduce the metal to metal contact between the tubes and the metallic bowl. In order to further reduce the noise level, a mild steel noise enclosure was provided lined with acoustic foam with a top acrylic removable cover for loading of the tubes into the bowl. A gravity chute was provided to take the aluminium tubes upto the chamfering machine of the customer. The complete assembly was mounted on a heavy fabricated single post stand having an adjustment of (+/-) 200 mm. The order was for 2 sets and they were shipped within the committed delivery time to South Africa. 

Innovative Usage of Vibratory Bowl Feeder - Vibratory Bowl Feeder for feeding Plugs

by Monish Shete 27. February 2014 09:49

Recently, a system integrator approached Elscint, for resolving of a problem being faced by them. They required two metal plugs to be fed, oriented and transferred to a distance of 12 metres, out of which four meters was vertically up, five meters horizontal and three meters again down. The reason was that there was a space constraint for placing the vibratory bowl feeder near to the place of usage of the plugs. The speed was very less but the requirement of the customer was stringent. To match this requirement, Elscint designed and supplied a unique Blow Feed system which transferred two plugs to the distance of twelve meters by an air blow arrangement. A single bowl feeder was used, with two outlets for this purpose. Sensors were provided for auto-switch off of the bowl feeder as well as ensuring that a plug was present at the blow feed position before the blow feed was activated. Additionally, two sensors were provided at one meter from the usage point to give signal to the customer’s machine that plugs were present and that his operation could be started. All the controls were housed in a single control panel and a level control along with a tower lamp to indicate low level of plugs in the bowl feeder was also provided. Such innovative ideas further emphasize the advantage of working with a leading bowl feeder manufacturer like Elscint.

 

 

Innovative Usage of Vibratory Bowl Feeders - Vibratory Feeder for feeding plugs

by Monish Shete 14. February 2014 08:26

Recently, a system integrator approached Elscint, for resolving of a problem being faced by them. They required two metal plugs to be fed, oriented and transferred to a distance of 12 metres, out of which four meters was vertically up, five meters horizontal and three meters again down. The reason was that there was a space constraint for placing the vibratory bowl feeder near to the place of usage of the plugs. The speed was very less but the requirement of the customer was stringent. To match this requirement, Elscint designed and supplied a unique Blow Feed system which transferred two plugs to the distance of twelve meters by an air blow arrangement. A single bowl feeder was used, with two outlets for this purpose. Sensors were provided for auto-switch off of the bowl feeder as well as ensuring that a plug was present at the blow feed position before the blow feed was activated. Additionally, two sensors were provided at one meter from the usage point to give signal to the customer’s machine that plugs were present and that his operation could be started. All the controls were housed in a single control panel and a level control along with a tower lamp to indicate low level of plugs in the bowl feeder was also provided. Such innovative ideas further emphasize the advantage of working with a leading bowl feeder manufacturer like Elscint.

Innovative Usage of Vibratory Bowl Feeders - Vibratory Feeding & Stacking Systems

by Monish Shete 3. February 2014 05:15

Elscint recently supplied a vibratory feeding and stacking system for lapping operation of a very small component having diameter 5 mm x 2.82 mm height with a small boss having dia 2 on one side. The requirement was to stack this component on a Hylem Plate having diameter 190 mm. The stacked Hylem Plate was required to be transferred onto the lapping machine for further operation. Until now, the components were stacked manually and loaded onto the lapping machine. The component being very small, this used to take a lot of time. Hence, Elscint supplied a feeding solution where the parts were loaded and oriented in a vibratory bowl feeder, namely Model 160 with a cast aluminum bowl with Elscinthane PU coating. Thereafter the parts were transferred to another vibratory drive on which the hylem plate and a hylem ring on top of the plate were mounted through a small linear vibrator. The components would automatically get stacked inside the hylem ring on the hylem plate. A quick mounting and removal arrangement was provided for the hylem plate and ring whereby they could be removed easily for transfer to the lapping machine. A top acrylic dust cover too was provided. At a speed of more than 180 parts per minute, the hylem ring would get completely stacked in less than 8 minutes, automating the operation.

A sensor to ensure that the equipment switches off once the hylem ring is completely stacked too was provided. The complete system was mounted on a table giving a complete solution for the customer. You can watch the video of the equipment.

 

 

Innovative Usage of Vibratory Bowl Feeders - Vibratory Drive for Bausch + Stroebel bowl

by Monish Shete 22. January 2014 04:12

Elscint recently supplied a vibratory drive for an old bowl made by a German machine manufacturer named Bausch + Stroebel. The requirement was for feeding of rubber bungs having dia 30 mm. The customer was a leading biotech company in India. They had purchased a complete filling line from Bausch + Stroebel, Germany three years back. However, the vibrator supplied by the German manufacturer never really worked well. The first problem was the speed / feed rate. Against the requirement of 25 parts per minute per row (2 rows), the vibrator would deliver less than 10 parts per minute per row, especially after one hour of continous running. The coil used to get heated, resulting in drop in the feed rate. Another problem was that the bowl was having a very high pitch (distance between two tracks) of 105 mm. This resulted in a lot of pressure being generated on the coil which was not capable of the same.  Elscint provided its own vibratory drive in place of the Bausch + Stroebel drive, using the same bowl. The mounting arrangement of the present bowl too was used by providing an adaptor plate, resulting in no change in the present bowl. Elscint Model 250 D was used. With the powerful and efficient Elscint drive, even on the high pitch bowl, a speed of 80 rubber bungs per minute per row was observed. Additionally, Elscint provided a stainless steel adaptor plate with mounting holes to suit the present mounting arrangement. Elscint even provided support for fixing of the vibrator on the customer’s machine. The equipment functions in a Class 6 facility, which means access to the same is heavily restricted and one needs proper certification for the same. All this was completed in a single day so that the customer’s filling line was not kept idle.

 

 

About the author

Monish Shete is CEO of Elscint Automation, a 25 year old firm manufacturing vibratory bowl feeders and similar small part handing products. He personally has more than 18 years experience with last 10 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.