一、前言包装机械是一种用途广泛的机械,各工业部门和农副产品部门都有使用。随着国民经济的不断发展,包装机械在国民经济里所占地位将越来越重要。我国近年来除轻工外贸部门在大量使用包装机械外,其他部门也正在大量推广包装机械的使用,如化工部门的化肥农药包装,机械部门的标准件包装,农垦部门的天然橡胶、鸡蛋和水果包装,冶金部门的氧化铁包装等 I. Introduction Packaging machinery is a widely used machinery, all industrial sectors and agricultural products departments have used. With the continuous development of national economy, the position of packaging machinery in the national economy will become more and more important. In recent years, in addition to extensive use of packaging machinery in foreign trade departments in light industry in our country, other departments are also promoting the use of packaging machinery such as chemical pesticide packaging in the chemical sector, standard packaging in the machinery sector, natural rubber in the farming sector, eggs and fruits Packaging, iron and steel packaging in the metallurgical sector