Primary mold maintenance involves the daily operation and upkeep of the mold during production. The main tasks include cleaning, lubrication, and inspection to ensure smooth functioning and prolong the mold’s lifespan.
First, Mold Maintenance Before Installation
Before installing the mold, it is essential to clean the upper and lower surfaces thoroughly. This ensures that the mounting surface of the mold and the press table are free from debris, preventing damage and ensuring proper parallelism between the upper and lower mold mounting areas during production.
Second, Maintenance After Installation
Once the mold is installed, it should be opened to inspect and clean all internal components, especially the guiding mechanism. For surface molds, the exterior must be cleaned to maintain part quality. Lubricate moving parts with grease and perform a comprehensive inspection of all mold components, particularly safety-related elements such as side pins, safety screws, side guards, and punching waste channels.
Third, Maintenance During Production
During production, certain mold parts should be regularly lubricated. This includes the drawing ring of the drawing die, the rounded corners, the edges of trimming dies, and the flanging block areas. It is also important to clean the small hole waste channels of trimming and punching dies to prevent blockages and ensure consistent performance.
Fourth, Post-Production Maintenance
After production ends, a thorough inspection of the mold is necessary. Clean the entire mold to maintain its cleanliness. Remove any leftover material from inside the mold and ensure the waste box is empty. Document the condition of the mold before and after use in the mold voucher for future reference.
Secondary Mold Maintenance
Secondary mold maintenance refers to scheduled, systematic upkeep based on the mold’s technical condition and complexity. This type of maintenance is typically performed by experienced mold repair technicians and recorded accordingly. Below are specific maintenance procedures for different mold components:
Metal Forming Dies (Drawing Dies): The convex and concave parts of drawing dies often suffer from surface embossing or wear. Polishing the rounded areas is the primary maintenance method. If craters or deep scratches appear, the mold must be repaired or replaced.
Guiding Components (Guide Pins, Guide Bushings, etc.): These parts can become scratched due to dirt or misalignment. Use an oil stone to remove scratches and polish the surface to restore functionality.
Trimming Blade Edges: Blade edges are prone to chipping or breaking during use. When this happens, the affected spring or elastic components should be repaired or replaced. Springs are among the most vulnerable parts of the mold, often breaking or deforming. Replacement is required, and it's crucial to match the original spring’s color, outer diameter, and length for proper function.
Punches and Punching Tools: Most punches are standard parts and may break, bend, or get damaged during use. Damaged punches and sleeves should be replaced with identical specifications. Key parameters include the working section size, mounting dimensions, and overall length.
Fastening Components: Regularly check if bolts, nuts, or other fasteners are loose or damaged. Replace them with parts of the same specification to maintain structural integrity.
Pressing and Unloading Parts: Components like pressure plates, upper rubber pads, unloading plates, and pneumatic top devices require regular inspection. Check their assembly and condition, and repair or replace damaged parts. Inspect pneumatic systems for air leaks and address issues accordingly—replace damaged air tubes if needed.
Stay alert and maintain your tools properly
Labels: Automotive Mold Maintenance Steps
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