Processing device for coffee beans

A processing device for coffee beans to undergo a de-husking, bean-halving, membrane removing and roasting device to proceed with a de-husking, bean-halving, membrane removing and roasting step of coffee beans, wherein the de-husking, bean-halving and membrane-removing device comprises:

• a first beating mechanism having a plurality of rotating blades with hard rubber at the surface thereof to beat and remove the dried husk, flesh and inner skin of coffee beans;
• a second beating mechanism having a plurality of rotating blades with soft rubber at the surface thereof to beat and remove the silvery skin of the inner layer of the bean;
• a first separating mechanism mounted with a blower for separating the coffee bean from skin and debris;
• the roasting device including a rolling container mounted with a spiral conductive plate and a burner at the bottom section of the rolling container for roasting of coffee beans after the coffee beans have been de-husked, halved and membrane-removed for appropriate stirring for evenly roasting;
• the grinding device including:
• a coarse grinding mechanism having an upper and lower grinding disc and a gap being formed by the upper and lower grinding disc to grind coffee beans into coarse granules and to remove the thin membrane adhered to the coffee beans;
• a second separating mechanism having a blower which can separate crushed granules of the coffee and the thin membrane;
• a fine grinding mechanism having an upper and lower grinding disc and a gap being formed by the upper and lower grinding disc to form a small gap to grind the crushed granules into fine powder.