Keywords:bread slicing, sliced-bread, slicing machine, reciprocating blades
This study developed a compact front loading machine for slicing loaves of bread. The machine is fast, efficient, safe and easy to operate. It was designed to accommodate a normal loaf of bread per pass. It works on the principle of gravity loaf in-feed system and the up-and-down reciprocating motion of the blade frame that carries 22 parallel cutting blades spaced at a regular interval of 14.5 mm apart. It is driven by a 2 horsepower electric motor via a V-belt power transmission system. The moving components are born on self-lubricating bearings and specially designed vibration absorbers; it automatically stops to save running cost once the loaf is completely sliced. It also incorporates a crumb collection tray to enhance the hygiene of the process. Evaluation tests revealed that increasing the cutting speed above the standard commercial bakery speed of 420 r/min increased bread wastage and reduced uniformity of slice thickness.