An important link in the manufacturing reliability of fully automatic casting molding machines:

Manufacturing includes welding, casting, forging, heat treatment, and machining of various equipment parts, equipment assembly, factory testing, and transportation to users; The above links must have a strict quality management system to ensure the quality of equipment. Otherwise, problems during the manufacturing process will pose hidden dangers to the reliable operation and maintenance of the equipment in the future.

1. There must be a scientific management model

In the manufacturing process, there must be a scientific management model, just like Haier, which has entered the Fortune 500, to ensure that each process has someone responsible, each part has a responsible person, and the permanent code of the processor is retained on the parts, truly achieving clear responsibilities, rights, and interests. Quality is the life of the enterprise, and only by achieving high quality of each part can the reliability of the entire molding line be guaranteed.

2. The processing of important parts must have strict specifications

During the manufacturing process, there must be strict standards for the processing of important parts, such as welding parts: the weld seam must be fully welded and firmly welded, and there must be no defects such as missed welding, false welding, slag inclusion, air holes, and cracks. The weld seam must be beautiful and firm; Casting: It is necessary to ensure both its internal quality and its appearance quality, and there must be no defects such as shrinkage porosity, shrinkage cavity, slag inclusion, porosity, and cracks; Forgings (especially hydraulic valve blocks): They must have a good and dense internal structure, and must not have defects such as layering, slag inclusion, porosity, and cracks. Weldments and castings must undergo heat treatment to completely eliminate their welding and casting stresses, ensuring that they do not deform after machining. The machining of parts should ensure both high machining accuracy and good surface roughness, and also pay attention to the absence of burrs and cutting edges. The hydraulic valve block must undergo strict cleaning, air drying, and rust prevention treatment before being assembled after processing. After welding, the hydraulic oil tank must undergo strict acid cleaning, air drying, and rust prevention treatment. Only by strictly regulating can we ensure the use requirements of key and special parts, ensure good functional performance and fatigue life of the parts, and lay a solid foundation for the reliable operation of the entire molding line.

3. Equipment assembly

Before assembling mechanical equipment, the parts to be assembled must be wiped clean and carefully checked for burrs. Dirt and burrs are not allowed to remain, especially on the machining mating surface, otherwise it may be difficult to disassemble during maintenance. The places that need to be greased must be filled with grease, especially the bearings and shaft sleeves; Otherwise, it will affect its service life. For the connection of fasteners, the tightening force of each group of screws or bolts should be uniform, and individual loosening is not allowed.

Due to the unique advantages of hydraulic transmission (smooth operation, stepless speed regulation, and easy automation), especially the widespread application of hydraulic proportional technology and servo technology, its fast operation and good buffering, and high productivity molding lines mostly use hydraulic transmission technology. At the same time, hydraulic transmission has a fragile side (low pollution resistance). According to relevant records, 70% to 80% of hydraulic equipment failures are caused by oil pollution. For high productivity molding lines, in order to improve their reliability, it is necessary to control oil pollution at every step. Therefore, pollution must be controlled from the beginning of assembly. The assembly of the hydraulic system must be carried out in a clean factory without pollution. The hydraulic valves and valve blocks to be assembled must be carefully inspected and no dirt is allowed. The hydraulic oil tank must be pickled and rust treated and cleaned. When installing hydraulic pipelines, the welded steel pipes and joints, steel pipes and flanges, and other welds must be bottomed with hydrogen arc welding. After welding, acid cleaning, air drying, and rust prevention treatment must be carried out, and clean plastic or satin cloth should be wrapped for installation. Before installing the hoses, dry compressed air should be used to blow them clean to avoid contamination during transportation or other processes. In addition, hydraulic pipelines must be fixed with pipe clamps according to relevant regulations, especially at the bends of the pipelines, to avoid joint looseness and oil leakage caused by pipeline vibration.

The installation of the electrical system, the wiring lugs of the junction box and electrical cabinet, as well as the proximity switches on the equipment, should be firm to avoid loosening and shutdown due to vibration during operation in the future. Protective sleeves should be added to the cable conduit mouth to prevent the pipe mouth from cutting and damaging the cable.