The mold is an indispensable product in the tire production process. The quality of the mold directly affects the quality of the tire. There are patterns and logo patterns in the mold of the tire, which are relatively delicate carving processes. However, the mold is repeatedly used under high pressure and high temperature conditions, and is inevitably polluted by the comprehensive deposition of rubber, vulcanization and mold release agents (the main pollutants are sulfides, inorganic oxides, silicone oil, carbon black, etc.), patterns, It is easy to accumulate rubber and residues in grooves and other places. When accumulated to a certain extent, it will affect the surface shape of the tire, thus making the product a defective or waste product. Therefore, the mold must be cleaned frequently to ensure the cleanliness of its surface. The quality of the tire and the life of the mold.
Most of the cleaning methods used today all have shortcomings. The blind area cannot be cleaned, the consumables are high, and the mold is damaged. The existing mold cleaning method is as follows:
1. Dry ice cleaning: Dry ice cleaning molds have zero damage to cleaning molds, and the efficiency is medium. The cost of dry ice is too high, it is difficult to store, and it is dangerous. The method can reduce costs. Only by purchasing dry ice locally can reduce the cost, because buying dry ice in other places will be in the transportation process. Consuming dry ice increases the cost.
2. Chemical cleaning: Chemical cleaning of the mold will corrode the metal material on the surface of the mold. Cleaning requires soaking for a period of time to increase the corrosion of the mold, which is not conducive to long-term use of the cleaning mold, and will produce industrial waste water, which is harmful to human health.
3. Sandblasting cleaning: The sandblasting cleaning mold is sprayed with materials (copper sand, quartz sand, emery, iron sand, sea sand) to the surface of the mold at high speed, which will cause damage to the surface of the mold, which is not conducive to cleaning the mold for a long time. Air pollution and noise will produce inhalable particulate matter and cause harm to the human body.
Every year, there are 100 million tires manufactured all over the world. During the production process, the cleaning of tire molds must be fast and reliable to save downtime. The traditional chemical cleaning method, sand blast cleaning method, dry ice cleaning, etc. all have the disadvantages of high labor intensity, low efficiency, low safety factor and high cost. Therefore, the tire manufacturing industry urgently needs a high-efficiency, low-cost and low-cost cleaning technology. Laser cleaning is suitable for all kinds of molds, no pollution, high initial investment, but the cleaning system can be used stably for a long time, low operating cost, and has significant advantages such as no damage to molds.
The basic principle of laser cleaning tire molds: After the laser is irradiated on the surface of the mold, it will be digested and absorbed by the deposits on the surface of the mold. Under the effect of high-temperature kinetic energy, the deposits are vaporized and evaporated from the surface of the object in an instant, and the time required is very short. At the same time, online cleaning operations can be realized, and the operator can be guaranteed safety. Compared with the traditional cleaning method, the use of laser cleaning greatly improves the cleaning quality and cleaning efficiency, solves the problems existing in the traditional cleaning method, and fully meets the requirements that tire cleaning must be fast and reliable. Save a lot of consumables.
