molding machine maintenance

- Oct 12, 2017-

1. Processing enterprises should first give each pair of mould record card, detailed records, statistics of its use, care, lubrication, cleaning, rust and damage, which can be found on the basis of parts, components, has been damaged, the wear degree of size, to find and solve the problem of information data, and the mould molding process parameters, the materials used for the product, so as to shorten the test time of mould, improve production efficiency.

2. Processing enterprises should be in the injection molding machine, mold under normal operation, all kinds of mold test performance, and the final shape of parts size measured, through which information can determine the existing state of mould, find out the cavity, core, cooling system and parting surface damage, according to the information provided by the plastic, can judge the mold damage status and maintenance measures.

3. To track: focus on several important parts mould ejection, guiding role is to ensure that the mold opening and closing movement and plastic ejection, if any of these parts stuck due to injury, will lead to production, so often should keep the mould thimble, guide post lubrication (should choose the most suitable lubricant), and regularly check whether thimble, guide pin, etc the distortion and surface damage, once found, will change in time; After completing a production cycle, do you want to work to the mold surface, sports, guide components coating professional rust-proof oil, especially should pay attention to with gear and bearing parts and spring rack mould stretch strength of protection, to ensure that it is always in the best working state;    With production last time, the cooling way is easy to deposit scale, rust, sludge and algae, decrease of cooling flow channel section, the cooling channel narrow, greatly reduced the heat exchange between the coolant and the mold rate, increase the production cost, so we should pay attention to clean up on passage; For hot runner mould, the maintenance of heating and control system is helpful to prevent the production failure. Therefore, each end of the production cycle in response to die band heater, rod heater, heating probe and thermocouple with ohmmeter measuring, if there are any damage, should change in time, and comparing with mould resume, recorded, in order to timely found the problem, the adoption of countermeasures.

4. To pay attention to the surface maintenance of the mould, it directly affects the surface quality of the products, and the emphasis is to prevent corrosion. Therefore, it is particularly important to choose a suitable, high-quality and professional anti-rust oil. After the mold to complete production tasks, should according to different injection to take different approaches to remove residual injection carefully, available copper rod, copper wire and professional mold cleaner to remove residual injection and other sediments in the mould, and then dried. Disables iron wire, steel bar and other hard objects to clean, so as not to scratch the surface. If corrosive injection molding causes rust point, use grinding machine to grind and polish, and spray professional anti-rust oil, then place the mold in dry, cool, non-dust storage.