Simulação e otimização do processo industrial de paletização de caixas de refresco em pó e estudo ergonômico do posto de trabalho

Abstract

The transformations of the industrial market are becoming faster and more evident. However, companies should offer quality products at the highest level of reliability at a low cost and hence higher productivity and profitability. All this must be linked to a healthy work environment that is conducive to workers health, safety and motivation. The objectives of this study were simulate and optimize the process of palletizing boxes powdered drinks and conduct a study of the ergonomics physical of this activity. The work was developed in an industry food of Paraná. The sector analyzed in the industry was the palletizing of refreshment powder sachets of 30g. In this sector were made observations, accompaniments and counts of the times the process. To simulate the process of palletizing boxes of powdered juice was used ARENA® software and its tools. And, for the study of ergonomics was used the methodology proposed by NIOSH (1994). Simulation results for scenarios 1 and 2, with 240 sachets/min, show that in the sector mounting display, employees are used at 100% capacity. To optimize (reduce) the use of staff station of mount displays, without loss of production relative to the current scenario, it was decided to reduce the rate of production of packaging machine (180 sachets/min), and increase the number of station staff mounting of displays, from 4 to 5. Thus, reduced the use of employees for 80.45% and production reached 738 boxes/day with an additional four boxes/day. With respect to ergonomics, it was found that the sealing section of the boxes is characterized as a simple task, because there is no load lifting and twisting of the trunk, the lift index (IL) is less than 1. The palletizing has been characterized as a complex task because the pallet consists of 12 levels in this way, there is the raising and lowering of the boxes. In this task, lift index consists was greater than 1, which characterizes possible problem of low back pain for the developer. Simulation is an important tool for industrial planning, with it was possible to obtain an income of R$ 4,276.80. The activity of assembling and sealing of boxes does not cause problems for the developer. However, the activity of palletizing can present problems, the ILC found was 6.26.