TPT September 2009

T echnology U pdate

Length measuring system for tubes and hoses

Italian tool manufacturing

ABS UTENSILI, Italy, has been involved in the field of tool manufacturing since 1975. The company says it has always been committed to continuous technological development and extending its range in order to meet the needs of the mechanical industries. The company is involved not only in standard production, but also in the developmentofpartsaccordingtocustomers’ designs. It claims that great attention is paid to consulting, designing and processing, as well as to ensuring prompt deliveries and assistance by qualified technicians. ABS Utensili selects raw materials assessed according to quality criteria, performance and long life. The company then uses advanced machinery and the latest generation NC equipment to provide precise results.

SIKORA has developed a system called PRECILENGTH 6000 for non-contact online measurement of lengths of hoses and tubes and length measurement of extruded round products. It assists by defining the product profile and its movements and calculating the speed and the produced length calculated. In combination with two laser diodes, two image sensors are positioned next to each other. The product passes the first image sensor, which defines the shadow of the product shape. The exposure of the second image sensor occurs when the product shape, which has been recorded by the first image sensor, passes the second sensor. Hence, the characteristics of the shapes of both sensors are identical. The delay time for the exposure of the second image sensor is calculated and controlled adequately by the result of the correlation of both characteristics of the contours. Thus, PRECILENGTH 6000 exactly determines the produced length of the hose or tube.

Conventional length measuring devices using the principle of frequency shift, the so-called “Doppler-effect”, are suitable for the measurement of flat materials such as paper, steel sheet or textile. However, this technology encounters difficulties for length measurement of profiles with round or blank surfaces. The technology of the PRECILENGTH 6000, which defines the length through comparison of image patterns, is also reliable for round products and for products with blank surfaces.

ABS Utensili Srl – Italy Fax : +39 0438 482076 Email : info@absutensili.com Website : www.absutensili.com

Sikora AG – Germany Fax : +49 421 48900 90 Email : sales@sikora.net Website : www.sikora.net

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S eptember 2009

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