Injection molding molds, as a more critical production equipment in injection molding factories, determine the appearance, specifications, models, specifications, and surface smoothness of products. The raw material of the mold is stainless steel plate, which is generally composed of a front mold and a rear mold.
1. Protection of molds
Due to the characteristics of specificity, accuracy, and vulnerability of molds, it is particularly important to carry out safety protection for molds. The overall review includes the following aspects:
(1) Rust prevention treatment: To avoid rust caused by water seepage, condensation, rain, fingerprints, etc. in injection molding molds;
(2) Anti slip: To avoid mold damage caused by cracking or failure to return the top pin in a timely manner;
(3) Remove burrs: Avoid mold burrs caused by cloth wiping, material flushing, hand wiping, water nozzle pliers collision, and knife collision;
(4) Missing parts: To avoid damage to the mold throughout the entire application process due to the lack of supporting rods, sealing rings, and other components;
(5) Anti pressure: To avoid mold crushing caused by mold locking due to residual products;
(6) Underpressure protection: To avoid damage to the mold caused by excessive working pressure of bottom pressure protection.
Among them, the proportion of mold damage caused by cracking of the ejector pin, failure to return the ejector pin in a timely manner, residual products in the mold, and lack of auxiliary parts is relatively high. As a result, more than 85% of mold damage is caused by this, and the cost of mold maintenance is generally high. Therefore, how to prevent such situations from occurring is immediately related to the rights and interests of the injection molding industry.
In order to better avoid production delays and expensive maintenance costs caused by mold damage, as well as to better save human resources, some companies have undergone continuous scientific research and improvement, and have developed a product called "mold protector" using machine vision technology.
Mold monitor, or mold protector, also known as mold electronic monitoring, can effectively protect expensive molds. According to authoritative experts in the field of molds, the injection molding mold protection system software, installed on plastic machines, can immediately verify whether the product meets the standards, and check for any residues before locking the mold to avoid mold damage.
During the operation of the plastic machine, expensive molds are likely to be damaged due to plastic residue or displacement of the guide rail slider during each cycle. Mold protectors can prevent this situation from occurring and automatically prevent mold closure and alarm in case of abnormalities.
2. Mold maintenance
(1) When disassembling and assembling molds, prevent scratches and watering, and ensure stable movement;
(2) Spray hot mold and then spray a small amount of release agent;
(3) To conduct a comprehensive inspection of the mold and solve the problem of rust prevention, be careful to dry the moisture and dirt in the concave mold, core, injection structure, and position, and spray mold rust prevention oil and wipe with salt free butter.
3. Mold maintenance
During the continuous operation of the mold, it is very easy to cause problems such as component wear, lubricant mold, water seepage, and plastic material squeezing during the entire fitness exercise process. Therefore, mold maintenance must be carried out.
Mold maintenance is generally divided into daily maintenance and upper mold maintenance.
(1) Daily maintenance of molds generally includes the following aspects:
① Timely rust prevention treatment (exterior, PL surface, mold core, core, etc.);
② Add lubricant again on time (injection tissue, positioning, etc.);
③ Dismantle and replace easily worn parts (support rods, anchor bolts, etc.) on time.
(2) The maintenance of the upper mold requires professional technical maintenance personnel to remove the mold and carry out technical and professional testing and protection of the mold core, ejector pin, etc.