1: Die for a long time after use must be grinding mouth, after grinding blade surface must be demagnetized, not with magnetic, or prone to plugging material. Die enterprises to do detailed records and statistics the use and Nursing (lubrication, cleaning, rust) and damage. Based on the discovery which parts and components have been damaged, wear degree, in order to provide information to discover and solve problems, and the mold molding craft parameters, product materials used, to reduce the mould test time, improve production efficiency. In the injection molding machine, mold the normal functioning of, testing various properties of the mold and finally molded plastic parts size measurement, mold can be determined by the information of the existing state, find out the cavity, core, cooling system and damage to the parting surface, where, according to the plastic parts to provide information, the mold can be judged damaged condition and repair measures.

2: spring and other elastic parts in the process of using the spring most easily damaged, often fracture and deformation phenomenon. The approach taken is replaced, the replacement process, be sure to pay attention to the specifications and models of spring, spring specifications and types by color, outer diameter and length of the three to confirm, only in the case of the three are the same may be replaced. Spring to import the quality is good, the famous brand has Raymond die spring, etc..

3: die in the process of using punch prone to broken, bent and gnawed the phenomenon of shock is generally bad eating. Punch and punch sets damage generally use the same specification for replacement parts. The main parameters of the working part of the punch size, size, length and installation.

4: fastening parts, check the fastening parts are loose, damage, the way is to find the same specifications for the replacement parts.

5: the pressing parts such as pressure plate, rubber, unloading parts such as stripper, pneumatic ejector etc.. Maintenance and inspection of parts of the parts of the relationship and there is no damage to the damaged part of the repair, pneumatic roof material to check whether there is no leakage phenomenon, and to take measures to specific circumstances. Such as tracheal damage to be replaced. To the important parts of the mold are focused on tracking detection: ejection and guide member's role is to ensure that the mold opening and closing movement and top out of plastic parts, if any damage caused by parts and stuck, will lead to production, it should keep the mold lubrication thimble, guide pins (to choose the most suitable lubricant), and regularly check the thimble, guide pillars are deformed and surface damage, once discovered, should be promptly replaced; after the completion of a production cycle, to professional anti rust oil coated on the working surface of the die, the movement and a guide part. Especially should attach importance to the protection of elastic strength of gear, rack mould bearing parts and spring mould on the belt and to ensure that it is always in the best working condition; with the production duration, cooling channel deposition of scale, rust, mud and algae, the cooling channel section becomes small, cooling Channel narrows, greatly reduced between the mold and the coolant heat exchange rate, increase the production cost of the enterprise, so clear of the runner should be paid attention to; for hot runner mold, heating and control system maintenance is to prevent the occurrence of failures in the production. Therefore, it is particularly important.