6Sigma六西格玛精益生产持续改善分析管理常用工具资料 The_Lean_Enterprise_05_VSM_Symbols_8_pgs(价值流图-符号)

1、The Lean Enterprise VSM SymbolsLean Foundations Continuous Improvement TrainingValue Stream Symbols and Definitions Addendum to Value Stream MappingManufacturing ProcessProcess Data BoxITruck ShipmentInventoryMaterial IconsRepresentsNotesOutside SourcesOne box equals an area of continuousflow. All p

2、rocesses should be labeled.Box also used to identify departmentssuch as production control.Used to show customers, suppliersand outside manufacturing processes.WELDINGABCCOMPANYC/T=120 sec.C/O=22 min.3 SHIFTS3% SCRAPW/T=20 hrsUsed to record information concerninga manufacturing process, department,e

3、tc.Count and time should be noted.225 pieces 1.5 daysTuesday+ ThursNote the frequency of shipments.Material IconsRepresentsNotesFIFOAir ShipmentMovement of prodnmaterial by PUSHMovement of finishedgoods to the customerSupermarketPhysical pullTransfer of controlledquantities of material between proce

4、sses in afirst in first out seq.Create rail or other icons as needed.Identifies material movements that arepushed by producer, not pulled by the customer ( the following process ).Also shows movement of raw materialand components from suppliers ifthey are not pushed. Pull of materials from a superma

5、rket.Indicates a device to limit quantityand ensure FIFO flow of materialbetween processes.Information IconsRepresentsNotesManual flow ofinformation Electronic flow ofinformation For example: production schedule shipping scheduleFor example: EDI, Fax, etc.OXOXLoad leveling Sequence-Pull Ball Tool to

6、 level the volume and mixof Kanban over a specific periodof time.Gives permission to produce apredetermined type and quantity.WeeklyScheduleInformationDescribes an information flow.Information IconsRepresentsNotes20Production KanbanWithdrawal KanbanSignal KanbanKanban postTells a process how many of

7、 whatcan be produced and gives permissionto do so.Production instruction that ordersproduction from a batch process,eg: stamping.Place where Kanban are collectedand held for conveyance .Tells a process how many of whatcan be withdrawn and gives permissionto do so.LatheChangeoverGeneral IconsRepresentsNotesKaizen lightning burstBuffer or safety stockHighlights critical improvement needsat specific processes. Can be used toplan Kaizen events.“