A method for controlling the start of a marking - and cutting step of a laser unit of fields of a material web

摘要

A method for controlling the start of a marking - and cutting operation of a laser unit (6) of fields from a continuously by means of a scanner laser cutting - - and transported material web (1) made of paper, metal or plastic material, which by means of a sensor scanning unit (7), the longitudinal position in the direction of transport (5) of the transported material web (1) a in the edge region of the material web (1) arranged field - or bar-shaped marking (3) for controlling the start of the cutting - and contacts the process of the laser unit is used, characterized in that, on the web of material (1) in its edge region of a linear, parallel to the direction of transport (5) of the web of material (1), extending in a fixed predetermined distance from the fields to be punched out, which are arranged in a marking (4) is applied, the position of the linear marking (4) by means of a further sensor scanning unit (9) before entry into a of the laser unit (6) via line a laser reference field (2) of the field to be processed is measured, wherein the position of the field to be processed at right angles to the transport direction of the material web (1) and parallel to the transport direction of the material web..