Film conveying tension regulation and control equipment and film conveying tension regulation and control method

The invention provides thin film conveying tension regulation and control equipment and a thin film conveying tension regulation and control method.The thin film conveying tension regulation and control equipment comprises a signal collecting mechanism and a control mechanism, and the signal collecting mechanism is used for collecting a first signal of a thin film feeding side, a second signal of a thin film discharging side and a third signal between adjacent lifting roller sets; the control mechanism is connected with the collecting mechanism so as to be suitable for recognizing the tension change of the front-end film between the tension adjusting and controlling device and the front-end device according to the first signal, and therefore the lifting roller set is controlled to ascend and descend so as to be matched with the tension of the front-end film. And identifying the tension change of the rear-end film between the tension regulation and control equipment and the rear-end equipment according to the