The Rotary Moulder model RMVR is a new concept design soft biscuit forming machine. All the components, movements, accessories and its outward appearance have been renovated. It has been designed with the aim to reduce its overall height with the consequent vantage to facilitate the operations of cleaning, roller change-over, adjustments, feeding and product sight check.
The machine forms biscuits starting from crumbled dough loaded inside a hopper placed overhead.
The hopper, made of non-toxic food-grade plastic material, which can be overturned to replace the mounding roller, is complete of “rotating seal” ensuring dough side containment without escapes.
In addition, the hopper is formed by two parts: one is fixed and the other can be removed to allow machine insertion in a hard biscuit production line. A grooved roller takes the dough from the hopper and, with adjustable pressure, deposits it in the cavities of the moulding roller.
Said grooved roller has independent motorization with “long life” reducer directly splined to the central shaft. This roller, having “excellent” profile grooves, is provided with micrometric adjustment of moulding roller distance, with movement driven by graduated handwheel and jacks.
The moulding roller can be very quickly replaced thanks to the new “block in mould” system. During the moulding roller replacement , the knife is automatically excluded from its working position by pneumatic control.
The knife automatically returns in its working position as soon as a moulding roller is inserted again.
The scraping knife, adjustable in height and incidence (optional) removes the excess dough between the grooved roller and the moulding roller.
The biscuits formed this way by the mouding roller are then laid on the exit conveyor.
The knife position is adjusted by one handwheel only (two handwheels are necessary in case of incidence adjustment).
The new knife sharpening and the new leverage system make the knife act with a “dynamic arch” movement and prevent this way knife stumbling on the roller.
The cotton belt is driven by an independent “long life” motoreducer directly splined to the driving roller.
Belt tracking is continuously controlled by an automatic pneumatic system (optional) and proper sensors reading belt position.
The rubber roller acts as a driving roller and also as a pressure roller to detach the biscuits from the mould. The pressure is adjustable by means of two pneumatic cylinders, with independent control on the two sides through the adjustment of the counterpressures of each pneumatic cylinder. Also the belt tensioning system is pneumatic by two vertical cylinders controlled by pressure regulator.
The special weft cotton band, FDA rules approved, is closed with “invisible seam”, pre-treated in order to reduce dimensional variations due to utilization, internally and laterally resinated. The design of machine structure, pressure rubber roller supports and exit side frames allows a fast replacement of the belt.
The machine is equipped with lateral, frontal and upper protections (made of stainless steel as optional).
The upper protections have inspection holes to check proper biscuit outgoing.
Besides that, the upper protection can be open to allow hopper overturning and mould replacement and is equipped with safety switch.
Machine control system consists of a local push-button panel with independent control of roller and belt speeds both in manual and in automatic mode (cascade control). As optional it is possible to supply a “touch-screen” operator control panel.