| Job Title |
Engraver, Tire Mold |
| Job Description |
Sets Up And Operates Cam-controlled Tread-engraving (skid)
Machine To Mill Tread Designs In Metal Molds For Rubber Tires,
According To Specifications: Examines Work Order Or Receives
Verbal Instruction To Ascertain Cams, Gearing Ratio, And
Templates To Be Used. Lifts Mold Half With Hoist And Secures It
In Work-holding Fixture On Machine. Mounts Specified Cutting
Tool In Machine Spindle. Positions And Secures Drum Cam (grooved
Cylinder) Corresponding To Specified Tread Design Number In
Machine, Using Wrenches. Rotates Mold In Fixture To Align
Specified Design Location On Mark With Mark And Design Number On
Fixture Corresponding To Mounted Cam. Moves Controls To Position
Tool In Relation To Mold And Starts Machine. Turns Handwheel And
Simultaneously Exerts Pressure On Hand Lever To Traverse Pin
Against Cam And Tool Against Mold To Mill (engrave) Tread
Pattern In Mold, Adjusting Action According To Movement And
Resistance Sensed By Hands On Controls. Mounts Systematically
Varied Sequence Of Cams Which Produce Tread Pattern Of Minimum
Tire Noise. Verifies Engraved Mold For Conformance To
Specifications, Using Precision Measuring Instruments Such As
Micrometers, Calipers, And Dial Indicators. May Setup And
Operate Engraving Machine Equipped With Template Tracing Stylus
And Be Designated Tire Mold Engraver, Numerical Control (machine
Shop).
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