The pvc shrink film equipment can pack medicines of different shapes and specifications, and has high efficiency, can realize automatic continuous production, and the equipment structure is relatively simple. At the same time, the number of packaging workers is small, which reduces the cost of packaging production compared to the packaging in the carton. So how to improve the shrinkage effect of pvc shrink film equipment? Today, China Plastics Network - Jiuzhi Plastics Network takes everyone to see:
1. Look at the temperature. The working principle of pvc shrink film equipment is actually relatively simple, that is, the matching of speed and temperature. When the temperature is low, wrinkles appear on the surface of the product. If the temperature is high, the film will be burnt.
2. See if the size of the furnace is suitable. The size of the furnace is not suitable in two cases. One is that the furnace is too large, and the other is that the furnace is too small. The situation that occurs in the furnace is that the temperature received by the product is relatively small, and most of the heat is lost. Therefore, it is better to increase the heat shrink packaging machine to a very high temperature to shrink. If the furnace is too small, the film will stick to the inner wall of the furnace and be burnt.
3. See if the shrink film has a puncture. The surface of the shrink film must be pierced with small holes so that the gas inside the film can be dissipated through the small holes during the shrinkage. Otherwise, the gas will be inside the film, and the film will bulge.
4. See if the speed matches. The products contracted by the user are different, the length of the furnace is different, the temperature of the furnace is different, and the required conveying speed is also different. There is no standard value for reference at this speed, mainly because the customer needs to carry out the test when using it, generally after several tests. Basically, there will be better results. The longer the furnace, the higher the temperature and the faster the speed, which requires the customer to decide according to his own needs.
5, to see the quality of the film, or the width of the selected film is appropriate, the shrink film used in pvc shrink film equipment needs to meet certain requirements, if the quality of the shrink film is too bad, then the effect of shrinking must be bad, There are either wrinkles or breaks.
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