Elscint is developing a machine called the Elscint Heavy Duty Stacking Machine. This machine is useful for stacking items such as bearings cages and other components which need to be orientated and stacked. Components with holes can be stacked with Elscint Stacking Machine, with applications in the bearing, battery and similar industries. The machine consists of a hopper feeder with a capacity of 50litres/130 Ltrs, a vibratory bowl feeder, chain elevator and pneumatic indexing table.
Bearing cages are loaded in the hopper, below which an Elscint linear vibrator is mounted. There is a level controller placed in the vibratory bowl feeder which actuates the linear vibrator once the level of components in the feeder bowl goes down. This results in the hopper feeding more components into the bowl feeder. The vibratory bowl feeder is used only to circulate the bearing cages. There is a slight slit in the bowl feeder from where the chain elevator picks up the bearing cages and takes them up to a height of 2m. Then the bearing cages return by gravity on a fixed plate. The bearing cages are orientated while moving down and are dropped onto metal magazines (numbering nine). The orientation is done is such a way that one stack is of correct-side-up components, while the next stack is of correct-side-down components. This way, all the components which are taken up are oriented and stacked, thus improving the speed of the complete machine.
Metal magazines are mounted on a Festo-made Indexing Table. A sensor with a time delay facility is mounted to sense the component level on the metal magazine. When the components are filled to the level of the sensor, the chain elevator is switched off, the pneumatic solenoid is operated and the indexing table moves to the next stage, bringing the empty magazines to the loading stations. At this point the Elscint chain elevator starts again and the stacking operation continues.
In case the components cannot be stacked properly due to their dimensions, an Elscint Agitator Vibrator can be provided at the lower level, having an angular holder where the components will be resting while being stacked. This Elscint Agitator Vibrator is timed to start and stop, which imparts the vibration to the stacked components. Due to these vibrations the components, which are not stacked properly, are given rotary movement and get properly stacked.
This system uses Elscint Vibratory Feeder Model 250 or 400, Elscint Linear Feeder Model I or II, Elscint Hopper Feeder, Elscint Indexing Table and Elscint Agitator Vibrator. The models are determined based on the component size and speed requirement. Other custom-built Automation Systems can also be manufactured according to user requirements using the above Elscint Products.