Diseño de una Máquina Troqueladora de Palmito Automática

Abstract

An Automated Palmetto Stamping -in-a-d¡e Machine has been designed to increase the productivity of the paimetto processing plants. At the design begmning a study of the following parameters was carried out: máximum and minimL'Ti diameter of paimetto harvest, its average height, stamping- in -a -die diameter and the required production . With these data it was determined that the machine requires four steps: in the first one the raw material ¡s sorted out in a vertical sense through a hopper, a band and a funnel; in the second one the paimetto is centered using an assembly of centering systems which consist of drive and compression springs, a fixed cam , links, plates and an intermittent movement mechanism based on the Maltese cross design; in the third one stamping-in-a die is carried out through dies operated by pneumatic cylinders which are activated by the signal of a positioning sensor; in the fourth one the product core is displaced by a transporting band up to the following production step. The production capacity is expected to be 72 paimettos/ min. The product quality will be ¡mproved with a constant diameter of 3cm paimetto core. All the machine parts which are ¡n contact with the paimetto are designed ¡n austenitic stainless steel AISI 304. It ¡s recommended to feed the machine every 35 minutes with 8.5 hundredweights paimetto of 4 to 6 cm diameter and máximum height of lOcm.