Maximum oven length in minimum space
Each installation tailor-made
Well-made biscuits which have been perfectly baked can be entirely spoilt by incorrect cooling. A good cooling system will take into account the types of biscuits being baked, the prevailing atmospheric conditions and the amount of space afforded by the building in which the plant is to be installed. Every Baker Perkins installation is virtually tailor made to each customer’s requirements, but this leaflet will illustrate some of the possibilities which we can offer, both for assisted cooling and for natural cooling.
Natural Cooling
The most commonly used method today is to convey the biscuits on a separate cooling conveyor of a suitable length to give the biscuits time to cool in the normal atmosphere of the bakehouse. The cooling conveyor length normally provided in such a system varies between once and twice the length of the baking chamber and the simplest arrangement is known as the 2-Tier Overhead Cooler which is shown in our illustration. This is very economical in floor space and after leaving the cooling band, the biscuits are delivered to a stacking machine which in turn presents them ready for packing. As the biscuits leave the oven band they pass over a short wire mesh stripping conveyor before reaching the cooling conveyor. We also provide an emergency conveyor at this point for use in the event of any breakdown on the cooler or stacker. The cooler drive is synchronized with the oven drive itself.
Special Cooling Arrangements to Conform with Building Requirements
Turnover Drum
Where the factory length is limited, and the maximum length oven is required, it is possible to reverse the direction of a cooling conveyor by the use of a turnover drum. One or more of these may be introduced into the circuit in order to make the best use of the space available and our illustration show an arrangement which includes two turnover drums and permits the whole of the cooling to be carried out above the oven.
Another use of the turnover drum is to permit the cooling and packing to be carried out on an upper or on a lower floor and a variety of typical arrangements are shown by the sketches overleaf. It should be emphasised that the construction of our turnover drum is such that the biscuits are handled without damage to the alignment of the biscuit rows is so well maintained that perfect stacking is ensured at the end of the cooler.
