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US 4,934,224 AGranted
Strip threading tension monitoring system
AssigneeThe Gillette Company
InventorRobert L. Brown
Life of this patent
Estimating the term…
Abstract
The present invention relates to a system for monitoring tension of a peeled strip during threading of the strip onto a coil wrapping assembly. Sensors mounted on the coiler assembly monitor strip tension during threading such that a break in the strip triggers shutdown of the machine including withdrawal of the cutting tool from the billet to prevent damage to the tool.
Claims14
A method of controlling the threading of a strip peeling machine comprising:
- rotating a billet of material to be peeled on a spindle at a threading speed;
- cutting the billet with a tool at a threading rate to produce a strip of peeled material;
- wrapping the peeled strip onto a coiler;
- monitoring the tension of the strip between the coiler and the billet during threading of the strip;
- terminating cutting of the billet during the threading of the strip when a predetermined reduction in tension in the strip between the coiler and the billet occurs;
- and
- repeating the previous steps of the method if cutting is terminated or, alternatively, discontinuing the threading of the strip onto the coiler and accelerating the rate of cutting of the billet with the tool to a peeling speed.
4 more elements
The method of threading of claim wherein the termination of cutting comprises displacing a cutting tool away from the billet.
A control system for a strip peeling machine comprising:
- a rotatable billet;
- a cutting tool to peel a strip from the billet at a threading speed or a peeling speed;
- a coiler having a threading position and a peeling position to take up the peeled strip such that the strip is under tension between the billet and the coiler;
- a sensor adjacent the coiler in the threaded position that detects a reduction in the tension during threading of the peeled strip and generates a signal when the coiler is in the threaded position that is correlated with the reduction in tension;
- and
- a controller responsive to the signal that discontinues cutting of the strip from the billet at the threading speed upon the detected reduction in threading tension.
3 more elements
Dependencies are inferred from the claim text.