1. Maintenance during mold assembly. Before mold assemb […]
1. Maintenance during mold assembly. Before mold assembly, the upper and lower surfaces bai of the mold should be cleaned to ensure that the mold mounting surface and the press table are not crushed and the mold is parallel to the upper and lower mounting surfaces during production. After the mold is installed, the mold is opened, and all parts of the mold are cleaned, especially the guide mechanism. For the surface mold, the surface of the mold is cleaned to ensure the quality of the part. Lubricate the sliding parts of the car mould and apply grease. Inspection of all parts of the mold, especially safety parts. Such as: safety side pins, safety screws, side guards, punching waste channels, etc.
2. Maintenance during production Periodically apply oil to the corresponding parts of the mold during production. Such as: the pressing ring and fillet of the drawing die; the knife edge part of the trimming die; the flanging knife block part, etc. Regularly clean the small hole waste passage of the trimming punching die. Post-production maintenance After production, a comprehensive inspection of the mold is required. The mold is thoroughly cleaned to ensure the cleanliness of the mold. Clean up the waste in the mold to ensure that there is no waste in the waste box. The use status of the mold and the situation after use are truthfully reported to the mold voucher. Secondary maintenance of the mold Secondary maintenance of the mold refers to the regular systematic maintenance of the mold based on the technical status and complexity of the mold. This maintenance work is completed by mold repair personnel, and records are made according to the maintenance situation. The following describes the requirements and methods of the second warranty for different parts. Drawing dies, convex and concave dies: The main problem with the convex and concave dies of the drawing dies is the roughening and the embossing of the mould surface. During maintenance, the rounded corners of the mould are mainly polished. If there is a crater, repair the mold and then repair it. Guide parts (guide posts, guide sleeves and guide plates, etc.): the mold will have pull marks during work. The main causes are dirty lubricating oil and guide gap deviation. The pull marks of the guide parts are eliminated by polishing after smoothing with oilstone.
Trimming edge: The edge part of the mold is prone to chipping and edge collapse during the use of the mold. At this time, the damaged knife edge of the mold should be repaired and repaired with elastic parts such as springs: during use, the spring is one of the most vulnerable parts of the mold, and it usually breaks and deforms. The method adopted is to replace, but during the replacement process, you must pay attention to the specification and model of the spring. The specification and model of the spring are determined by the three items of color, outer diameter and length. Only when these three items are the same can they be replaced. Punches and sleeves: Most of the punches and sleeves used on the mold are made of standard parts, and the punches are prone to breakage, bend and gnaw during the use of the mold. Punch sets are generally broken. Damaged punches and sleeves are generally replaced with parts of the same specification. The parameters of the punch mainly include the size of the working part, the size of the installation part, and the length. Fastening parts: Check whether the fastening parts are loose or damaged. The method adopted is to find parts of the same specification for replacement. Pressing and unloading parts: pressing parts such as pressing plates, uniglue, etc., unloading parts such as unloading plates, pneumatic ejectors, etc. During maintenance, check the assembly relationship of each part and whether there is damage, and repair the damaged part. Pneumatic jacking check for air leakage, and take measures for specific conditions. If the trachea is damaged, replace it.