Diseño y construcción de una máquina despulpadora de guanábana de capacidad 50 kg/h.

Abstract

The present work consists in the design and construction of a soursop fruit pulper machine (Annonacea) financed by the IMVIC company; The goal of the Project is to improve the quality and optimize the time involved in the separation of the seed and fruit. For project development it was necessary to reseach about the production of soursop fruit, surveys were conducted to several farmers in order to know the user needs to model potential solutions through the voice of an engineer, three types of pulpers were proposed, selecting the more suitable by quality design QFD (Quality Function Deployment) and weighted criteria, in this case the horizontal pulper; for the beginning of the design it was necessary to obtain experimental values such as angular velocity, likewise a field study was made to know the soursop fruit density , the pulper is composed by a reception hopper, exit duct for seed, tray for pulp output, a main shaft provided with the agitator, cutting blades and worm, for the modeling SOLIDWORKS software was used, corroborating the dimensions of each element previously designed, the analysis of efforts to which the machine is subjected was performed in ANSYS software, without the presence of failure in any element, the frame was analyzed with live and dead load in SAP2000 software; When is optimal design, the next step is the construction, the pulper was built in stainless steel AISI 304 due to the anticorrosive properties, the union of the elements was made by welding TIG (Tungsten inert gas), because of costs and versatility a frequency inverter was chosen to manipulate the speed of operation; the capacity of the machine is 50 Kg / h, with a product loss of 6%; a plan of preventive maintenance was elaborated that must be carried out by assigned works in periods of time, this helps us to improve the yield and increases the useful life of the elements, we recommend a strict cleaning, after each process to prevent the growth of bacteria.