In order to judge the damage state of the mold and repair measures, the processing company should measure the size of the final molded plastic part under the normal operation of the mold and the injection molding machine, and test the performance of the mold. Through this information, the damage of the cavity, core, cooling system and parting surface can be found, and the existence of the mold can be determined.
At the same time, it is necessary to focus on tracking and testing several important parts of the mold. The ejector guide is to ensure the opening and closing movement of the mold and the ejection of the plastic part. If any part gets stuck due to damage, production will be suspended. Therefore, check whether the ejector pin and guide post surface is deformed or damaged, and keep the mold ejector and guide post lubricated frequently. Once a problem is found, it should be replaced in time.
After completing a production cycle, ensure that they are always in the best working condition, pay special attention to the elastic strength protection of the bearing parts with gears and racks and the spring mold, and apply professional anti-rust on the movement, working surface and guide parts of the mold. Oil.
With the continuous extension of production time, the cooling channel is easy to deposit rust, sand, scale and algae, which makes the cooling channel of the cooling channel narrower and smaller in cross section, which increases the production cost of the enterprise and greatly reduces the cooling liquid and the mold. Therefore, attention should be paid to the cleanliness of the cooling channel.
The maintenance of the heating and control system is helpful for the hot runner mold to prevent production failure. Therefore, after the end of each production cycle, an ohmmeter should be used to measure the heating probe, band heater, thermocouple and rod heater on the mold, such as If it is damaged, it should be replaced in time, recorded, and compared with the mold history, so that the problem can be found in time and countermeasures can be taken.
The surface quality of the product is directly affected by the surface maintenance of the mold. The focus is on anti-corrosion. Therefore, it is particularly important to choose a suitable, high-quality and professional anti-rust oil. After the production task is completed, the mold should adopt different methods according to the injection molding. Carefully remove the remaining injection molding. When removing the remaining injection molding and other deposits in the mold, you can use copper wire, copper rod and professional mold cleaning agent, and then air dry.
It is forbidden to clean hard objects such as iron wires and steel bars to avoid scratching the surface. Spray the professional anti-rust oil on the rusty spots, and then store the mold in a cool, dust-free and dry place.
