| 摘要 |
A method and apparatus for manufacturing decals from a web of decal material, wherein core portions of waste material in the decals automatically can be removed from the decals. In one aspect of the invention, backing material is stripped from the decal material; the decal configurations are cut into the decal material; the waste exterior portion of the decal material is removed from the decals while the decals are retained in position on a vacuum wheel; and the core portions are removed by the vacuum in the wheel through enlarged openings opposite the core portions on the decals. In another aspect of the invention, the decal configurations are cut into the decal material while it remains on the backing material; the exterior waste portions are removed; and the core portions are removed by passing the backing material over the sharp edge of a peeling bar while pressing the decal portion downwardly on the backing material. The core portion is not pressed downwardly and thus peels from the backing material as the backing material passes over the sharp edge. A pneumatic or mechanical core-picking mechanism is employed to facilitate removal of the cores from the decals. In another aspect of the invention, the core configuration of the decal is cut through the decal material and the backing material, and the core section of decal and backing is pneumatically removed from the rest of the web.
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