Several elements of safety protection for injection molding machine mold protection system

As one of the most critical production tools in an injection molding plant, the mold plays a vital role in determining the shape, size, and surface finish of the final product. Typically made of steel, a mold is usually composed of two main parts: the front (or upper) mold and the rear (or lower) mold. **Mold Protection** Due to its high precision and sensitivity, proper mold protection is essential to ensure longevity and performance. Here are the key aspects of mold protection: 1. **Anti-Rust**: Prevent rust caused by moisture, condensation, rain, or fingerprints. 2. **Anti-Collision**: Avoid damage from broken ejector pins or improper retraction. 3. **Prevent Foreign Object Damage**: Protect against damage from materials, cloths, or sharp objects coming into contact with the mold. 4. **Prevent Missing Parts**: Ensure all components like tie rods and washers are present to avoid structural failure. 5. **Anti-Pressure**: Prevent damage caused by residual material remaining in the mold during clamping. 6. **Under-Pressure Protection**: Avoid excessive pressure that can harm the mold structure. More than 85% of mold damages result from issues such as broken ejector pins, incomplete retraction, leftover material, or missing components. Since mold maintenance can be costly, effective protection is crucial for cost control and operational efficiency. To prevent production delays and reduce repair costs, Anzhen Technology has developed a specialized product known as the "Machine Mold Protector." This system, also referred to as a "mold monitor" or "mold electronic eye," helps safeguard expensive molds by detecting abnormalities during operation. According to industry expert Luo Baihui, the mold protection system installed on the injection molding machine can check if the product is qualified and detect any residue before closing the mold. This prevents damage caused by plastic residue or misaligned sliders. If an issue occurs, the system automatically stops the mold from closing and triggers an alarm. If mold damage occurs due to inadequate protection, the following steps are recommended for mold repair: **Mold Repair Notes**: 1. Avoid dropping or splashing water when disassembling the mold. Handle it smoothly. 2. Apply heat to the mold, then spray a small amount of release agent. 3. Thoroughly inspect and protect the mold. Dry all areas, including cavities, cores, and ejection mechanisms, and apply rust inhibitor and grease. **Mold Maintenance** During continuous use, molds require regular maintenance due to wear and tear, lubricant degradation, water leaks, or plastic debris. Mold maintenance is typically divided into two categories: daily maintenance and more in-depth mold servicing. **Daily Mold Maintenance Includes**: 1. Regular cleaning and rust removal from the mold's surface, cavity, core, and parting line. 2. Re-lubricating moving parts such as the ejection mechanism and guide pins. 3. Replacing worn-out components like rods and bolts. 4. Checking other critical areas for signs of damage or wear. For more thorough maintenance, professional technicians should remove the mold and conduct detailed inspections, testing, and protection of the mold cavity and ejector pins.

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Label: core, lower mold, clamping, mold, injection molding machine, protection system

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