1. 150m/min high speed has already reached the international most advanced level.
2. Rewind and unwind both adopt double position and equip with semi-automatic to connect paper device, The machine can change the rolls of base material nonstop， It will reduce the waste.
3. When the double sides adhesive tape coat twice, it will effect the quality of products, but the technology of double sides coating meanwhile will solve the questions.
Coating machine knowledge handout ---
In the coating process, the coating gap is poor and the pole piece wrinkles are analyzed:
I. The phenomenon and cause of poor coating gap
(1) Material: slurry material, viscosity, solid content, slurry (surface) tension
(2) Equipment: coating-back roller distance. speed of coating roller when back roller is opened. diameter of back roller. back roller surface material. back roller deformation. back roller and coating roller parallelism. back roller and oven front Rolls are not parallel. Tension in operation
(3) Operational aspects: parameters for head and tail adjustment 2. Head and tail are not parallel
(1) Material: the gravitational pull on both sides of the substrate
(2) Equipment: The back roller and the coating roller are not parallel. The back roller is not open when it is opened. The back roller surface is coaxial. The back roller and the traction roller are not parallel. The level changes. (3) The tension roller adjustment state.
4. When the coating machine is running, the pole piece is broken.
1. The belt is not right, and the additional pulling force is increased to make the foil strip break in the weak place. 2. Sampling causes damage, resulting in a significant decrease in the tensile strength of the foil strip. 3. The tension is too large, unstable, and there is a sudden change. 4. The air volume is abrupt and the distribution is severely uneven.
5. The temperature is abrupt, which has a great influence on the strength of the aluminum foil. 6. The quality of the foil strip is poor and the edge is notched.
7. The foil strip is seriously deviated and is cut off by the edge of the roll end. V. Other failure phenomena:
1. There are obvious embossing marks and scratches on the pole piece, which are longitudinally distributed: 1) The blade of the scraper roller has a gap or sticks with foreign matter.
2) The coating roller is not easy to use. If the gap material on the coating roller is not scraped off and applied to the substrate again during the coating gap, it will leave obvious marks on the substrate;
3) The axis of the scraper device is out of line with the axis of the coating roller, causing the blade to be inconsistent with the pressure of the coating roller, the shape of the blade is not suitable, the blade elasticity is low, etc.
2. There are obvious cracks on the pole piece: the drying speed is too fast, the oven temperature is too high, and the baking time is too long.
Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc