A pure ethylene blown film stretching device

Abstract

The utility model provides a kind of pure ethylene blown film stretching device.The pure ethylene blown film stretching device includes: frame body and tensile roller, tensile roller is set to the inside of frame body, the both ends of tensile roller are rotatably connected with screw sleeve, the front and back sides of frame body are provided with screw rod, and are respectively threadedly connected with the screw sleeve of the both ends of tensile roller, the bottom of two screw rods is fixedly connected with pulley, and two external are provided with toothed belt to transmit power;The pulley located in the front side of frame body can rotate relative to frame body, drive the screw rod fixedly connected with it to rotate, and at the same time, it can drive the pulley located in the back side of frame body to rotate through toothed belt to make the screw rod fixedly connected with it rotate.The both ends of the tensile roller in the pure ethylene blown film stretching device provided by the utility model can always keep displacement consistent during lifting process, so as to ensure that the tension of film is uniform during stretching, effectively reduce the quality defects in film stretching process, and improve the qualified rate of finished film.

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