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US 6,453,966 B1Granted
Apparatus for wrapping a layer of material on a recycled core
AssigneeCSI Core Specialties Inc.
InventorStuart Ostroff
Life of this patent
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AssigneeCSI Core Specialties Inc.
InventorStuart Ostroff
Estimating the term…
Winding cores for the paper industry are restored by removing the metal tips from the ends of the core, trimming the core to eliminate the crimped end portions of the core, providing complementary male and female joint ends to the core, grinding the outer surface of the core to a constant outer diameter less than the industry standard outer diameter to accommodate a finishing layer. The cores with the complementary joints are pressed end to end to form a core master prior to its being ground and then picking up the core masters one by one and bringing them into proximity of a web of liner board material having a length which corresponds to the length of the core master and a width which corresponds to the circumference of the core, contacting the glue bearing liner board web with the core and rotating the core to wrap the web of liner board about the core to provide a finished restored core. The core master is then cut into suitable length winding cores.
An apparatus for wrapping a layer of material about a cylinder, including an elongated frame, a web material feeding station at one end of the frame for feeding a web of said layer of material and a conveyor for advancing said web along a longitudinal axis of said web, to a fixed position horizontally and longitudinally on the frame, cutting means for cutting a length of said web corresponding to the length of the cylinder to be wrapped, said web having a width equal to the circumference of the cylinder to be wrapped, glue means for applying adhesive to the web, an overhead conveyor for picking up and positioning said cylinder over the cut length of said web on the elongated frame with the axis of the cylinder parallel to the longitudinal axis of said web, means for bringing said web of material and the cylinder into contact such that the adhesive will engage the surface of the cylinder, and means for rotating the cylinder and said cut length of said web so that the layer of material is wrapped completely about the cylinder.
Dependencies are inferred from the claim text.