Diseño y construcción de una máquina extractora de gel de sábila con capacidad de 150 Kg./hora

Abstract

Chapter I It begins with the study of the history and an overview of aloe vera, such as its habitat, its structure, different species, its composition, etc. Then there is an investigation of the production process of aloe, growth, harvesting, the processing of the leaves, the separation methods such as pressing, manual and machine filleting. Chapter II Three aloe vera gel extractor machine design alternatives are proposed based on the corresponding need and demand corresponding of the machine, the first alternative is an aloe gel extractor machine with rollers and conveyor, as a second option an aloe gel extractor machine with rollers and hopper, and finally an an aloe gel extractor machine with rollers and blades. Then the best alternative is selected by the weighted criteria method. Chapter III The mechanical design of the machine is carried out considering the design of the rollers which will be in contact with the aloe leaf, the angular velocity of the reduction system between the motor shaft and the drive shaft, the selection of the pulleys or belts that will be used in the transmission. The necessary power for the machine is calculated, sprockets are selected and the forces involved in this transmission as well as the moment generated by them are calculated. We proceed to dimension the axis using a static and dynamic analysis, the structural analysis shows that the selected profiles are correct. A simulation of the efforts and deformation of the structural elements is made by the INVENTOR 2014 MDSolid 4.0 software. Chapter IV A cost analysis is made in order to have a conception of the initial investment of the machine.