|
|
| MINI
SHIFTER MACHINE |
| This machine is
built specially for flour redressing and is especially
applicable when relatively large capacities of flour redressing
are envisaged. It is similar in operation and to a point,
construction to a square sieve plansifter, having sieve mounted
in boxes stacked on top of each other the usual number being
six, the whole stack rotates in a horizontal plane which
supplies the sieving and converting motion for the stock in the
machine. Now a day the machine is used for the whole Wheat Atta
plant for dressing the atta in small scale Industry. |
|
|
MINI SHIFTER MACHINE |
|
|
| The
machine is mounted on flour feet which can be securely bolted to any
type of floor. It is driven by a self countained electric motor through
twin vee belts. The degree of tension can be adjusted by the system of
linkage in the belts. |
| The
entire stack of sieve is gyrated in a 5mm circle at 250 r.p.m. in a
horizontal plane. Immediately the stock enters the head of the machine
it is directed by the feed spout on to a spreader, which distributes it
evently over the sieve cover, and some of the finer particles fall
through the screen on to the sieve collecting plate, to the discharged
at right angles into the throughs channel. |
|
|
|
| ELEVATOR
TOP & BOTTOM |
| The buckets
elevators are more usually employed for this function. The
materials is elevated by means of a bucket, of special shape,
attached to a conveying medium. The belt is carried over a
pulley at the top and at the bottom of the elevators, power
being applied to the top pulley and elevator belt tensioning to
the bottom. A casing is provided to enclosed the top and bottom
pulleys and the up and down lengths of belt and buckets. the
capacity of the elevators is determined by the size of bucket,
the number of buckets used and the speed of conveying belt. The
shape of the bucket must be designed so that, at a given speed
arround the top pulley, centrifugal force, added to the force of
gravity, causes all the materials elevated to be thrown out of
the buckets into the discharge spout. If these factors are
incorrectly selected material may either be thrown out too
soon, miss the discharge spout and fall into the elevator legs
or not be thrown out at all but allowed to drop out by gravity,
again into the elevator legs. |
|
| ELEVATOR
TOP BOTTOM |
|
|
|
| Top |
Back |
|
|