Harmful occupational factors of shoe productions: noise and vibration.

U B Lototska-Dudyk

doi:10.26641/2307-0404.2019.1.162315

Abstract

Shoe production is an important and promising industry of light industry in Ukraine. More than 15 thousand people work at almost 300 enterprises. Improvement of technologies and equipment, intensification of production processes on the background of their incomplete mechanization and automation cause production noise and vibration at the workplaces, in particular, in сutting, сlicking and closing workshops. Levels of manufacturing noise and production vibration in the workplaces of workers of the main occupations: cutters, clicking details, shoe markers, seamstresses, striking operatives, сementing operators, fitters and lasters, trimers and bottom scourers were analyzed. According to noise level, working conditions of cutters on the сutting machines Gerber, seamstresses, skivers, stitchers of upper, casters, fitters and lasters, сementing operators belong to the 2nd class (permissible). The working conditions of cutters on the сutting presses, shoe markers, fitters of upper on the heavy-class sewing machines, bottom scourers, trimers and striking operatives are classified as harmful ones (class 3.1), on separate workplaces of clicking details (press PVH-8) and bottom scourers – class 3.2 degree of danger. Equivalent correction levels of local and general vibration don’t exceed permissible levels. The presence of related unfavorable industrial factors necessitates the study of both combined and jointed action of noise and vibration with the subsequent assessment of the risks to the health of workers in the light industry.

Highlights

Harmful occupational factors of shoe productions: noise and vibration
The high noise level is recorded on streams where the veldtschoen cement shoe construction method is used – 88% of workplaces; the strip cement shoe construction method – 84.6%; welt cement shoe construction method – 52.6% and welt shoe construction method – 52.7%
143 measurements of industrial noise and 126 measurements of production vibration at the workplace of the workers of the main occupations have been analysed: cutters, parts cutters, markers, sewing operators, top and bottom footwear parts processors, gluers, lasters, footwear assemblers, polishers, millers have been made by the Laboratory of Industrial Toxicology of the Lviv National Medical University named after Danylo Halytsky (LNMU) and sanitary and hygienic laboratories of the Laboratory Centres under the Ministry of Health of Ukraine located in the Western region

Summary

Introduction

Harmful occupational factors of shoe productions: noise and vibration. Lototska-Dudyk U.B. Levels of manufacturing noise and production vibration in the workplaces of workers of the main occupations: cutters, clicking details, shoe markers, seamstresses, striking operatives, сementing operators, fitters and lasters, trimers and bottom scourers were analyzed. Были проанализированы уровни производственного шума и производственной вибрации на рабочих местах работников основных профессий: раскройщиков, вырубщиков деталей, литейщиков, клеймовщиков, брусовщиц, швей, обработчиков деталей верха и низа обуви, намазчиков клея, затяжчиков, сборщиков обуви, шершевальщиков, фрезеровщиков. PREVENTIVE MEDICINE equipment, intensification of manufacturing processes against their incomplete mechanization and automation, in some cases, cause the presence of working noise and vibration at the workplaces. The combined effect of noise and vibration is one of the harmful factors in cutting and assembling shops of footwear manufacture [4]. The levels of total vibration in the cutting shops reach significant values (108-112 dB) exceeding the permissible vibration velocity parameters for all axes (X, Y, Z) [5]

Objectives

Methods

Results

Conclusion