Some common problems of automatic packaging machine roll film?

Some common problems of automatic packaging machine roll film? Some common problems of automatic packaging machine roll film? 1. Uneven tension. Uneven film slitting is usually manifested in that the inner layer of the film is too tight and the outer layer is loose. If this kind of roll film is used on an automatic packaging machine, it will cause the packaging machine to run erratically, resulting in uneven bag size, film deviation, and excessive edge sealing deviation, resulting in packaging products that do not meet the quality requirements. 2. The end face is uneven. Usually, the end face of the roll film is required to be smooth, and the unevenness exceeding 2mm will be judged as an unqualified product, and it will usually be rejected. The film roll with uneven end surface will also cause unstable operation of the automatic packaging machine, deviation of film pulling, and excessive deviation of edge sealing. 3. Wave surface. The wavy surface means that the surface of the roll film is not flat and wavy. This quality defect will also directly affect the running performance of the roll film on the automatic packaging machine, and affect the quality of the final packaged product, such as the tensile properties of the packaging material, the deterioration of the sealing strength or the printed pattern, the deformation of the forming bag, etc. If this quality defect is very obvious, such a roll film cannot be used on an automatic packaging machine. 4. The cutting deviation is too large. Usually, the slitting deviation of the roll film is required to be controlled within 2-3mm. Excessive slitting deviation will affect the overall effect of the forming bag, such as pattern position deviation, incompleteness, asymmetric forming bag, etc. 5. The quality of the joint is poor. The quality of the joints is generally the requirements for the number of joints, the quality of the joints and the marking of the joints. The roll film press head should be flat, smooth and firm, and should not overlap and overlap. The joint position is preferably in the middle of the two patterns, and the adhesive tape should not be too thick, otherwise the film will be stuck, broken and caused to stop, which will affect the normal operation of the automatic packaging machine. run. Moreover, the joints should be clearly marked for easy inspection, operation and handling. More knowledge of packaging machine roll film: www.yltpacking.com