Web Flatness Measurement System

Kurzfassung

A Yorkshire-based (United Kingdom) company seeks a partner to manufacture a web flatness measurement system. The non-contact system measures web flatness optically and can be temporarily fitted to plant as required.

Details

The system uses a cross-mounted air nozzle and plenum box system that displaces the material as it passes over it. A thin strip of light is obliquely reflected in the same side of the material, perpendicular to the rolling direction. When viewed, the line of light reflected off the web is distorted proportionately with web displacement. Any localised slack areas of the material will experience greater displacement. Line distortion is monitored by an intelligent camera system (see below). For opaque materials, a laser line is projected obliquely on to the web and the image viewed by the cameras.

Innovative Aspects:
Patented, non-contact, optical system monitors the material profile. Configured as a single unit, it has no impact on plant or process. Intelligent camera system automatically monitors web distortion. Real-time analysis and recording of precise data. System output available for process feedback control. Real-time correction can avoid drastic consequences. Less waste, greater productivity.

Main Advantages:
The system has a wide range of potential applications in different industries. For paper, foil and film manufacturers and converters, it will mean significant reductions in tearing, creasing and delicate cutter damage. Consistent flatness will enhance productivity throughout the entire printing and packaging supply chain. In addition to material checking, the system can highlight deficiencies in the plant, such as roller misalignments. System users will benefit from significant reductions in wastage and value added to waste.