精益生产之单元线设计.pptVIP

单元生产线的设计 ? 2008 Gemba Research LLC * * Celestica World Class Manufacturing Training - Standard Work * Celestica International - Copyright (c) 1999 * Points to cover: Each walk path is standard每条路径是标准的。 Each walk path might have a different amount of steps but the total time to do all steps stays the same (in this case 60 seconds)每条路径也许有不同数量的步骤，但是总花费时间是一致的。 The width of the stations is as small as possible (eliminates walking waste)。 工站的宽度尽量一致。 The depth of the cell is of secondary importance to the width Raw material is fed from the outside of the cell原料从线外输入。 Any improvement that an associate comes up with can be shared by the whole cell One step took 12 seconds, it now takes 3 seconds (same as island example) The work can be rebalanced across all four workers 60 x 4 people = 240 seconds 60 x 3 + (60 – 9) = 231 seconds New cycle time = 231 seconds / 4 people = 57.75 seconds 3.75% improvement to through-put If more capacity is needed, either more people are added or a second identical cell is created Celestica World Class Manufacturing Training - Standard Work * Celestica International - Copyright (c) 1999 * Points to Note: Work sequence is different then process Sequence!!! Operator #1 – Steps: 1, 2, 10, 11 Operator #2 – Steps: 3, 8, 9 Operator #3 – Steps 4, 5, 6, 7 All operators are working to Cycle Time (which is less then TAKT Time) as shown by the little white arrows. All steps are always done in the same order 课程目的 单元线的设计要素 高效率生产线的设计要素 设计可以为单件流 设备和工站紧挨着 产品流自右向左 作业员以及物料流向无障碍。 原材料由物料员从生产线外“喂”入。 设备应大小合适 操作者为多面手 一个操作者能够“担起”此单元生产线 设备及工作站易于移动 高效率生产线的设计要素 所有工作站是安全的且符合人体工程学 工具和材料的摆放应以使用频率和人体工程学为基础 计划是视觉化的 每日/小时目标清晰，并收集实际数据 使用目视化管理方法管理材料和工具 生产规律图和其他关键履行指标追踪跟进 根本原因纠正措施过程的适当实施 过程步骤是防错的---质量形成于过程中 完成第一件需要21分钟 完成一批需要30分钟 批量 Lathe Mill One-Piece Flow单件流 Lathe Mill Drill Drill Make 10, Move 10 Make 1, Move 1 1 每个过程1分钟的周转时间 完成第一件需要3分钟 完成一批需要12分钟 Make 1, Move 1 Make 1, Move 1 Make 10, Move 10 Make 10, Move 10 1. 单件流设计 2. 设备和工站是紧挨着的 大部分人使用右手 右脑通过左眼输入空间性的视觉信息。 跑道由于这个原因自