What are the more common problems that require maintenance in hardware molds?

Hardware manufacturers should know that the most common problem in the production and use of hardware molds is burrs. Some burrs are easier to fix and can be fixed by adjusting the blanking gap. Some problems are not just gaps. Next, the author will analyze several causes of glitches. 1. Blunt cutting edge: The cutting edge becomes blunt or injured by gnawing. 1. The material and surface treatment of the convex and concave molds are poor, and the wear resistance is poor; 2. The die structure is poor, and the rigidity is poor, causing gnawing injuries; 3. The operation is not lubricated in time and wears quickly; 2. Gap: punching The gap is too large, too small or uneven can produce burrs. 1. Die manufacturing errors, die parts processing that does not conform to the drawings, poor parallelism of the bottom plate, etc.; 2. Die assembly errors, large gaps in the guide part, uneven assembly of convex and concave molds, etc.; 3. Poor punch accuracy, such as excessive punch guide gaps , The parallelism between the bottom surface of the slider and the surface of the worktable is not good, or the verticality of the stroke of the slider and the punch table is not good, the rigidity of the worktable is poor, and the deflection occurs during punching, which can cause the change of the gap. 3. Improper blanking state. If the material is not in contact with the punch or die, when trimming and punching with an improperly positioned relative height, the height of the part will be lower than the relative height of the positioning, and the shape of the part during the punching process Burrs are generated due to the lack of conformity with the cutting edge shape. The above is about the causes of burrs in hardware molds, I believe everyone has already understood. The burrs of metal stamping parts are usually produced in sheet metal blanking. Generally speaking, it is difficult to avoid. By improving the workmanship of the parts and improving the stamping conditions, the burrs can be avoided or reduced. [Related recommendation] Learn more: Precautions for designing continuous stamping die (2) Learn more: 6 precautions for designing continuous stamping die Learn more: Analysis of the causes of stamping die burst