US 9,149,848 B2 · Method and apparatus for trimming a sample from a coiled metal web

Abstract

Sample extraction or trimming from an end strip of an elongated formed metal that is coiled in layers within a tensioned metal coil resting on driven rollers. A cut channel is formed across the material width. In some embodiments the cut channel is formed between the rollers and by cutting at an angle relative to the coil outer surface. Coil weight and/or a coil tensioner mechanism inhibits coil relaxation along the cut channel by maintaining tension on wrapped layers against each other when the coil is unbanded for sample extraction. The coil is rotated so that the cut channel clears the rollers laterally. Material downstream the cut is then separated from the coil. After trimming and/or sample extraction the coil maintains rolled tautness for ease of rebanding.

Claims17

Dependent claims

A sampling system for extracting a sample from an end strip of a coil having wrapped layers of coiled formed elongated metal, comprising:

a pair of generally parallel spaced driven rollers, for selective rotation of a coil about a coil central axis that is oriented parallel to the drive rollers;
a thickness sensing gauge;
a cutter in communication with the thickness sensing gauge, for selective alignment with a circumference of a metal coil that is oriented parallel to the driven rollers, the cutter having a cutter drive mechanism for selectively aligning and traversing the cutter along a least a portion of the coil end strip, the drive mechanism also advancing the cutter into the coil end strip based at least in part on strip thickness determined by the thickness sensing gauge so as to facilitate a separation of a coil sample from the coil while minimizing material deformation along the separation edge, wherein a cut channel is formed by the cutter having an angle θ relative to the coil central axis and a radial depth D into the strip thickness, leaving a thin neck of material at the base of the cut channel.

A sampling system for extracting a sample from an end strip of a coil having wrapped layers of coiled formed elongated metal, comprising:

a pair of generally parallel spaced driven rollers, for selective rotation of a coil about a coil central axis that is oriented parallel to the drive rollers and extension of a coil end strip;
a cutter, for selective alignment with a circumference of a metal coil that is oriented parallel to the driven rollers, the cutter having a cutter drive mechanism for selectively aligning and traversing the cutter along a least a portion of the coil end strip for excising a sample therefrom, the drive mechanism also advancing the cutter into the coil end strip so as to facilitate a separation of a coil sample from the coil while minimizing material deformation along the separation edge using a sensor;
a peeler clamp for retaining the sample during and after excising with the cutter, wherein a cut channel is formed by the cutter having an angle θ relative to the coil central axis and a radial depth D into the strip thickness, leaving a thin neck of material at the base of the cut channel.

Dependencies are inferred from the claim text.

Method and apparatus for trimming a sample from a coiled metal web

Life of this patent

Method and apparatus for trimming a sample from a coiled metal web

Life of this patent

Abstract

Claims17