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Constant
feed allows the block machine's full potential to be attained all the
time, reducing rejects and the need for machine supervision.
Constant Feed
is incorporated as an option in the BatchTron-II and
III controllers. Instead of merely dumping a new batch into the
machine hopper, we feed it in at a carefully controlled rate, holding
the level constant. The block machine receives mix at a constant
pressure, giving even feed into the mould. This improves the
quality of the product.
- Consistent product at
all times
- Less supervision and
machine adjustment
- Eliminates rejected
product as a result of poor mould filling
- No-contact sensor
requires no cleaning or maintenance
- Totally automatic and
self-tending
Constant Feed
requires a holding
hopper under the mixer discharge plus a conveyor belt to the block
machine hopper. A level sensor measures the level in the machine
hopper, sending a signal to the BatchTron controller which in turn
controls the conveyor motor, speeding it up or slowing it down to match
the rate of usage in the block machine. The result is constant
level in the machine hopper, which guarantees the optimum conditions for
block making..
The sensor
 A
special ultrasonic level sensor is mounted above the machine hopper.
Its self-learning feature allows it to be set up in any bin with
an absolute minimum of adjustment. Its output signal tells the
controller what the level is in the hopper, allowing it to be adjusted
to the correct height.
The conveyor
Any belt conveyor which
uses a three phase electric or pneumatic drive can be converted by means
of a VFD (variable frequency drive) or pneumatic proportional
controller. This regulates the speed of the belt to fill the
hopper at the same rate as the material is used.
The controller
Constant Feed
is normally supplied as part of
the BatchTron batch controller, where it is a low cost option. If
you don't have a BatchTron, it can still be provided in a small
stand-alone PLC at modest cost.
The batching process
The BatchTron controller
delivers mixed concrete to the holding hopper when its level falls below
a set height, as measured with a simple electrical probe. The
conveyor belt runs the mix from this hopper to the machine hopper.
The holding hopper and mixer must be capable of providing a relatively
uninterrupted flow of material between batches.
The cost
Since every block and
paver plant is different, prices will vary. Use our direct
response form below for a fast estimate with no obligation.
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