Method and apparatus for manufacturing a rubber sheet containing short fibers
AssigneeMitsuboshi Belting Ltd.
InventorsTakyuki Tagawa, Toshihiro Yamada, Naokazu Yamaguchi, Toshihiro Nishimura
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Abstract
A method and apparatus for manufacturing a rubber sheet containing short fibers. The method includes the steps of: mixing short fibers in a flowable rubber matrix; forming the flowable rubber matrix with the fibers therein into a cylindrical shape with a circumferential extent; separating a portion of the circumferential extent from the cylindrical shape, and forming the cylindrical shape with the portion separated into a sheet form.
Claims23
A method of manufacturing a rubber sheet containing short fibers, the method comprising the steps of:
- mixing short fibers in a flowable rubber matrix;
- forming the flowable rubber matrix with the fibers therein into a cylindrical shape with a circumferential extent using a die from which the flowable rubber matrix departs at a first location in the cylindrical shape;
- separating a portion of the circumferential extent of the cylindrical shape with the flowable rubber matrix with fibers therein in the cylindrical shape;
- and
- forming the cylindrical shape with the portion separated into a sheet form,
- wherein the step of separating a portion of the circumferential extent comprises separating from 5–25% of the circumferential extent by cutting the cylindrical shape adjacent to the first location.
A method of manufacturing a rubber sheet containing short fibers, the method comprising the steps of:
- mixing short fibers in a flowable rubber matrix;
- forming the flowable rubber matrix with the fibers therein into a cylindrical shape with an axis and a circumferential extent and a weld line extending along the axis using a die from which the flowable rubber matrix departs at a first location in the cylindrical shape;
- separating a portion of the circumferential extent including the weld line from the cylindrical shape at a single circumferential location;
- and
- forming the cylindrical shape with the portion separated into a sheet form,
- wherein the step of separating a portion of the circumferential extent comprises separating from 5–25% of the circumferential extent by cutting the cylindrical shape adjacent to the first location.
Dependencies are inferred from the claim text.