Stripping method and apparatus for the processing of a continuous laminated web

In a machine for the processing of a continuous web, such as in the production of labels or the like, where the laminae is die cut to define a matrix portion to be separated from a substrate, a stripper apparatus for separating the matrix from the substrate as the web travels, said apparatus comprising a stripper bar disposed generally parallel to the plane of the web at the location of said bar and mounted for pivotal movement about an axis generally normal to said plane, and means for securing said stripper bar in a selected pivotal position, said matrix passing partially around said stripper bar away from said substrate.

In a machine for the processing of a continuous web, such as in the production of labels or the like, where the laminae is die cut to define a matrix portion to be separated from a substrate, a stripper apparatus for separating the matrix from the substrate as the web travels, said apparatus comprising a stripper bar disposed generally parallel to the plane of the web at the location of said bar and mounted for pivotal movement about an axis generally normal to said plane, means for securing said stripper bar in a selected pivotal position, a rewind roll disposed generally parallel to the plane of the web and mounted for rotation about its longitudinal axis and for pivotal movement about an axis generally normal to said plane, said matrix passing partially around said stripper bar away from said substrate and being rewound onto said rewind roll.

In a machine for the processing of a continuous laminated web, such as in the production of labels and the like, where the laminae is die cut to define a matrix portion to be separated from a substrate, a stripper apparatus for separating the matrix from the substrate as the web travels, said apparatus comprising:

• a frame along which said web travels, a stripper bar disposed generally parallel, and mounted for pivotal movement about an axis generally normal, to the plane of the web at the location of said bar, a support mounted for pivotal movement about an axis generally normal to said web plane, a rewind roll upon which said matrix is rewound disposed generally parallel to said web plane and mounted to said support for rotation about its longitudinal axis, a second roll mounted to said support for rotation about its longitudinal axis, the longitudinal axis of said second roll being parallel to the longitudinal axis of the rewind roll, means for securing said support and stripper bar in selected pivotal positions, and said matrix passing partially around said stripper bar away from said substrate, partially around said second roll, and onto said rewind roll.

In the processing of a continuous laminated paper web, such as in the production of labels and the like, where the laminae is die cut to define a matrix portion to be separated from a substrate, a method of stripping the matrix from the substrate as the web travels, said method comprising the steps of, separating the matrix from the substrate, and skewing the matrix as it is separated therefrom.

In the processing of a continuous laminated web, such as in the production of labels or the like, where the laminae is die cut to define a matrix portion to be separated from a substrate, a method of stripping the matrix from its substrate as the web travels, comprising the steps of driving the web past a stripper bar pivotally mounted about an axis generally normal to the plane of the web at the location of the bar, pivotally adjusting the stripper bar to a desired skewing angle, separating the matrix from the substrate and passing the matrix partially around the stripper bar to skew the matrix relative the web by an amount defined by the skewing angle, passing the matrix around a second roll and onto a rewind roll, said second roll and rewind roll being rotationally driven and being pivotally mounted for movement about an axis generally normal to the web at the location of the bar, and pivotally adjusting the second roll to an angular position relative an axis in the plane of the web normal to the direction of web travel of approximately twice the skewing angle.

In the processing of a continuous laminated paper web, such as in the production of labels and the like, where the laminae is die cut to define a matrix portion to be separated from a substrate, a method of stripping the matrix from the substrate as the web travels, said method comprising the steps of separating the matrix from the substrate, skewing the matrix as it is separated therefrom, rewinding the skewed matrix onto a rewind roll, passing the matrix partially around a second roll as it travels between said web and rewind roll, adjusting the skewing angle of the matrix, and adjusting the angle of the second roll relative an axis in the plane of the web normal to the direction of web travel to approximately twice the skewing angle.

In the processing of a continuous laminated paper web, such as in the production of labels and the like, where the laminae is die cut to define a matrix portion to be separated from a substrate, a method of stripping the matrix from the substrate as the web travels, said method comprising the steps of separating the matrix from the substrate, skewing the matrix as it is separated therefrom, rewinding the skewed matrix onto a rewind roll, passing the matrix partially around a second roll as it travels between said web and rewind roll, and driving said rewind and second rolls.