技能培训-机械防护.pptx

Basics of Machine Safeguarding,Any machine part, function, or process which may cause injury must be safeguarded 任何机器的部件、功能或者操作流程中有导致伤害的都需要护罩Hazards must be controlled or eliminated to prevent accidental contact 危害必须被控制或消灭以防止意外接触Accidents of this type are needless and preventable 这种类型的意外时不必要的和可预防的,What is machine guard?何謂機械安全防護? Any machine guarding or devices, like belt protective cover machine rotating and moving parts guard fan blade cover machine fence photoelectric sensor switch, light curtain two hand control cover on rotating work piece interlocks tailgate special jig aid pull back and Restraint, which prevent the injury caused by accessing the moving parts.凡是機台之皮帶防護蓋 機器轉動和移動件護罩 風扇葉片罩 機器護欄 光電感應開關,光柵 雙手啟動開關 轉動工件防護蓋 互鎖裝置 各式檔板 特殊夾治具 輔助工具 回拉和抑制等設施 目的在於防止機械 對人員造成任何形式的傷害,Machines consist of three fundamental areas机器的三个基本构成面Point of Operation 运作点Power Transmission Device电输送枢纽Other Moving Parts其他活动部件,Fundamental Areas Machine Safeguarding,Point of Operation - the place and/or point of actual contact between a machine and the material being processed运作点 - 机器和原材料接触的区域或一个点Examples of these actions include cutting or shaping这些运作点包括切削或成型,Fundamental Areas Machine Safeguarding,Nip Point,Workers should not be able to reach into the point of operation. If it is possible to reach into this area then safeguards are needed. Safeguards can be electronic presence sensing controls or can be physical barriers. Physical barriers need to be attached with fasteners requiring tools for removal or connected to approved interlocks. Openings in barriers need to meet the ANSI standards. These are based on the distance from the hazard。 Two hand controls, two hand trips and electronic presence sensing safeguards need to be set up by a qualified individual to assure they are located a safe distance away from the point of operation. This requires “stop-time measurements” for installation of light curtains, lasers and two hand controls. Two hand trips are based on the cycle time of the machine.