US 6,672,530 B2 · Method of and apparatus for winding film, method of and apparatus for supplying film roll core, and method of and apparatus for inspecting appearance of film roll

Abstract

A film winding apparatus has a film winding mechanism for rotating a roll core to wind an elongate film around the roll core thereby to produce a film roll, a product receiving mechanism for gripping the film roll while tensioning the elongate film, the product receiving mechanism being displaceable away from the film winding mechanism, and a cutting mechanism for transversely cutting off the elongate film while the elongate film is being tensioned by the product receiving mechanism. The elongate film can be wound highly accurately around the roll core with a simple process and arrangement.

Claims12

Dependent claims

A method of inspecting the appearance of a film roll, method comprising:

providing a film roll that has a roll core around which a photosensitive material is wound;
applying a linear light beam in a wavelength range to which the photosensitive material is insensitive, to at least one inspected surface of the film roll
imaging a reflected beam from the inspected surface;
and
inspecting the appearance of the film roll based on the image of the reflected beam.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/262,852Filed 3 Oct 2002 · division

Priority

JP 11-17598122 Jun 1999

Published

US 2003/0029959 A113 Feb 2003

Granted

6 Jan 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

B65H 18/20
Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web: the web roll being supported on two parallel…
B65H 18/14
Web-winding mechanisms: mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
B65H 18/26
Web-winding mechanisms: mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
B65H 19/2207
In winding mechanisms or in connection with winding operations: the web roll being driven by a winding mechanism of the centre or core drive type

Method of and apparatus for winding film, method of and apparatus for supplying film roll core, and method of and apparatus for inspecting appearance of film roll

Life of this patent

Method of and apparatus for winding film, method of and apparatus for supplying film roll core, and method of and apparatus for inspecting appearance of film roll

Life of this patent

Abstract

Claims12