Stretching line

Abstract

A stretching machine (10) for stretching a film (F), in particular a transverse and / or simultaneous stretching machine, has an oven (12) in which a running area (L) for the film (F) is defined, and at least one temperature measuring device (16) with at least two measuring instruments (18) and a control unit (20). The measuring instruments (18) each have a linear field of view (B) and are configured to optically measure the temperature of the film (F) in the field of view (B), wherein the fields of view (B) in the area of ​​the running area (L) define a measuring area (M), wherein the control unit (20) is configured to determine a temperature profile (T) based on temperatures measured in the measuring area (M), wherein the temperatures for the temperature profile (T) were measured by different measuring instruments (18).

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