基于生产物流的LBMA1000盎司标准银锭自动化铸造线的研制

Research and Manufacture of Casting Automation Line for LBMA 1000 Ounces Standard Silver Ingot Based on Production Logistics

为了提高伦敦金银市场协会(LBMA)1 000盎司标准银锭的生产效率,从生产物流的角度分析了1 000盎司标准银锭的生产工艺,删除了生产物流中的多余动作,优化了物流过程,设计了一套银锭自动化铸造线。研制了铸造线的关键设备:银锭铸造车,它把烘模、7块银锭逐一浇注成型、反馈浇注质量信号、补温缓冷、脱模等物流动作集中在一台单体设备上。通过试生产表明,铸造线能够缩短银锭制造时间36.5%、搬运时间94%、搬运距离91.6%,减少操作人员40%,提高成品率5.33%,生产出符合LBMA要求的1 000盎司标准银锭。

In order to improve the production efficiency of the London bullion market association（LBMA）1 000 ounces standard silver, using the method of production logistics management to analyze its production process, delete the redundant movement of production logistics and optimize the logistics process, a set of silver ingot automatic casting line was developed in wkich several logistics action were completed by an integrated device for casting silver ingot, such as baking molds, casting and molding of 7 pieces of silver ingots one by one, feedbacking pouring mass signal, slow cooling temperature and demoulding, etc. Trial production shows that the casting line can shorten the silver ingot manufacturing time by 36.5%, handling time by 94%, transport distance by 91.6%, and it can reduce operating staff by 40%, improve yield rate of finished products by 5.33%, significantly improve the production efficiency. The produced 1000 ounces standard silver ingots can meet the requirements of LBMA.