SHRINK TUNNEL FOR APPLYING SHRINK FILMS, METHOD FOR OPERATING OR CONTROLLING A SHRINK TUNNEL AND PRODUCTION PLANT WITH A SHRINK TUNNEL

摘要

A shrink tunnel (10) for use in a production plant for producing packaging units or containers (4) from packaging means (2) filled with a product, and with shrink-wrapped shrink film, comprising at least one shrink tunnel inlet (10.1) and at least one shrink tunnel outlet (10.2) for the packaging units (4) and comprising at least one tunnel zone (14) within the shrink tunnel (10) or between the at least one shrink tunnel inlet (10.1) and the at least one shrink tunnel outlet (10.2) for shrink-wrapping the shrink film under the effect of heat onto the packaging units moved through the at least one tunnel zone (14), wherein at least one closing device (17) is provided at the shrink tunnel inlet (10.1) and at the shrink tunnel outlet (10.2), with in each case at least one closing element (19) for at least one inlet or outlet opening (18) forming the shrink tunnel inlet (10.1) or shrink tunnel outlet (10.2).