Mold Care And Maintenance

1: The cutting edge of the mold must be ground after long-term use, and the cutting edge surface must be demagnetized after grinding, and it cannot be magnetic, otherwise it is easy to block material. Mold using enterprises to do detailed records, statistics of its use, care (lubrication, cleaning, rust prevention) and damage, according to which can be found which parts, components have been damaged, wear degree, to provide information to find and solve the problem, as well as the mold molding process parameters, product materials used, in order to shorten the mold test time, improve production efficiency. Should be in the injection molding machine, the normal operation of the mold, test the performance of the mold, and the size of the final molding of the plastic parts measured out, through this information can determine the current state of the mold, find out the cavity, core, cooling system and parting surface damage, according to the information provided by the plastic parts, you can judge the damage of the mold and maintenance measures.

2: Spring and other elastic parts in the use of the spring is the most vulnerable to damage, usually fracture and deformation phenomenon. The way to take is to replace, in the replacement process must pay attention to the specifications and models of the spring, the specifications and models of the spring through the color, outer diameter and length three to confirm, only in the case of the same three can be replaced. The spring is of the best quality imported.

3: The punch is prone to break, bend and chew during the use of the mold, and the punch sleeve is generally chewed. Punch and punch sleeve damage are generally replaced with the same specification parts. The parameters of the punch mainly include the size of the working part, the size of the installation part, the length size, etc.

4: Fastening parts, check whether the fastening parts are loose, damaged phenomenon, the way to take is to find the same specification of parts for replacement.

5: Press parts such as press plate, good force glue, etc., discharge parts such as stripper plate, pneumatic jacking, etc. During maintenance, check the relationship between the parts of each part and whether there is damage, repair the damaged part, check whether there is gas leakage phenomenon, and take measures for the specific situation. Replace the air pipe if it is damaged.

Several important parts of the mold should be focused on tracking and testing: The role of ejecting and guiding parts is to ensure the opening and closing movement of the mold and the ejecting of plastic parts. If any part of the mold is stuck due to damage, it will cause production to stop. Therefore, the lubrication of the mold thimble and guide post should be kept regularly (to choose the most suitable lubricant), and the thimble and guide post should be regularly checked for deformation and surface damage.

After the completion of a production cycle, professional anti-rust oil should be applied to the working surface, moving and guiding parts of the mold, especially the protection of the elastic strength of the bearing parts of the gear and rack mold and the spring mold to ensure that they are always in the best working condition;

As the production time continues, the cooling channel is easy to deposit scale, rust, silt and algae, etc., so that the cooling channel section becomes smaller, the cooling channel Narrows, greatly reduces the heat exchange rate between the coolant and the mold, and increases the production cost of the enterprise, so the cleaning of the flow channel should be paid attention to;

For hot runner molds, the maintenance of the heating and control system is conducive to preventing the occurrence of production failures, so it is particularly important.