Innovative retrofits to draw frames

According to the Swistzerland-based Rieter, many progressive enhancements of the draw frame can be integrated in older machine models with little effort. The non-contact pulse generator B92 EVO facilitates improved measuring accuracy – even with heavy soiling. Thanks to the innovative XR nanocoating the life cycles of the calandar disc in the sliver canal are extended. The accuracy of the sliver thickness measurement is thereby improved.

The pulse generator B92 EVO is available for the draw frame types RSB-D 30, RSB-D 30c, RSB-D 35, RSB-D 35c, RSB-D 40 and RSB-D 40c.

Non-contact pulse generator B92 EVO

The magnetic measuring principle of the pulse generator B92 EVO is based on a magnet ring and sensor head. With older draw frame models, an additional shaft is delivered to facilitate this non-contact measuring principle. The high shock/vibration resistance and dustproof properties (Protection Class IP67) of the pulse generator B92 EVO allow a faultless application even under extremely dusty environmental conditions with fibre fly. The vibration resistance also ensures a high level of measuring accuracy and functional safety. A longer life cycle compared to its predecessor is achieved by the new pulse generator B92 EVO through contact-free measuring. Bearings that could wear out no longer exist.

During the development, great value was placed on simple installation and high ease of maintenance. The main drive shaft only needs to be installed and dismantled when assembling the magnet ring; in contrast to the exchange of the old pulse generator B92, where the shaft had to be completely dismantled every time.

The sensor B92 EVO is attached to a separate holder which allows it to be changed without removal of the main drive shaft.

For further information:

J÷rg Feigl, Project Manager (Parts). Email: joerg.feigl@rieter.com.