How to repair the screw wear of the automatic PP packing belt production line?How to repair the screw wear of the automatic PP packing belt production line?
Nowadays, the PP packing belt production line is used by more and more packaging companies. Its fully automated operation mode and high-efficiency operation system are praised by everyone. However, with the accumulation of working time and inadequate maintenance, the fully automatic packing belt production equipment will also be subject to a certain degree of wear and damage. Especially the screw and barrel of the packing belt production line are more susceptible to damage than other components. However, due to the design, the service life of the barrel is generally longer than the service life of the screw, so compared with the wear of the screw, the normal wear of the barrel does not need to be repaired.
So, how can we repair the screw wear of the automatic packing belt production line? Next, let Yongxing Machinery, which specializes in manufacturing and selling PP/PET strapping production equipment and PP strapping, answer your questions!
1. If the screw thread top surface of the packing belt production line wears out, we generally use the method of surfacing special anti-wear and corrosion-resistant alloy to repair.
First, the surface of the outer circle (top of the screw thread) of the worn packing belt production line is ground to a uniform size. The grinding depth is generally 1.7mm, and then the size of the surfacing alloy layer is to a sufficient height to ensure that there is sufficient machining allowance, at least 3mm.
Then grind the outer circle of the screw and the side of the thread. The outer diameter of the screw is generally larger than the size of the new screw, the purpose is to compensate for the wear of the barrel and maintain the original designed radial clearance. This method can also be used for the local damage of the packing belt production line.
2. For the screw of the packing belt production line that originally had a chrome layer, we can re-chrome after the coating is worn out. At present, metal spraying technology has been applied to the manufacture and repair of the packing belt line.
3. If there is some abnormal damage to the body of the packing belt production line, such as serious scratches near the end, the method of inserting the sleeve can be used. It should be noted that the inner diameter of the inserted sleeve should be suitable , And after corresponding surface treatment or lined with bimetallic lining.