Lock Out Tag Out policy of Injection Molding
Lock Out Tag Out policy, what do you allow your molding techs to do on a mold without locking all energy sources? Cleaning or small repairs? Mold change? Where to put the limit?
Keep on Molding!
Some companies require LOTO whenever breaking the plane inside the door, but common sense allows short cleaning or maintenance.
The rules are not clear and can be confusing.
The machines inherently have redundant safety features, i.e., hydraulic interlock, door electrical safety switch, etc.
If you completely understand the safeties of the machine, it should help you make the decision.
1- Do you allow to remove a molded part stuck on the core pin?
2- Do you allow to cleanup a vent between plates?
3- Do you allow to disasemble a slide for cleanup and greasing?
If you respond no to any of these 3 situations, why?
Our LOTO comes into play mostly during the mold change time. If we have to remove a slide, that would also trigger the LOTO, because of the potential damage to the tool while the slide is removed.