Punch stroke at a time, in the different parts in the mold together over several stamping process that mold, called string model, positioning pin alignment in advance when working out of the positioning hole, the downward movement of car radiator cap upper die, punch for blanking, another punch for punch. When the upper die return, stripper plate off the waste from the punch. At this time again to send into the blank ahead, performance of the secondary cutting. So, every time send into interval is controlled by blocking pin.
At a stroke, the ends together on the same part mould number of stamping process of die, known as the compound die, an important characteristic of composite modulus is one of the mould intensive. Intensive cylindrical blanking punch edge, inner hole is deep drawing die. When the slide block with intensive downward movement, the material in the first place in the intensive and blanking die lagged. Fall of materials is lower die drawing punch to resist, slider continued downward movement, die with the downward movement of deep drawing. Ejection device 5 and discharger in return will be drawing a slider mould.
Composite modulus is suitable for high yield, high precision stamping parts.
1, check and correction of drawing mould: drawing die need to do regular inspection and maintenance, in order to reduce the generation of convex concave and maintain a stable state. Common practice is DIN screw plug to use the sample check pressure rim of adhesive scratch and machined surface (die, punch corner fillet).
2, shear modulus of the examination and correction: after shearing process of convex concave reason is due to the shear produced in the process of iron powder, therefore must watch before stamping iron powder, avoid the happening of convex concave.
Speed: 3, the appropriate manipulator for semi-automatic drawing mold production, when drawing punch in die position, manipulator speed quickly, the burr will fall on the upper punch, convex concave. To avoid this problem, we can do parts of the discharging test before production, setting up reasonable speed and discharging Angle of the manipulator, it won't run into parts and mould.
4, check the truncation: truncation coil, will produce Magnetic Drain Plug a lot of wear and tear to cutting mould attached to the blade tiny iron powder, so must be in before stamping production material check double truncation surface area or press line, and the clean sheet to remove burrs.
5, sheet metal cleaning device check: before the stamping production required inspection and repair cleaning settled at the same time, so that it may be more effectively clean sheet, it is also a need to need, and also need to pay attention to the quality of the roll gap and cleaning oil. Method is in detail on a steel plate coated with red paint after wash settle its course, the current check red paint is undone before because of the shape, assume that removal rate is not up to standard, the required inspection and repair cleaning to settle. Cleaning oil when the lack of necessary cuts in a timely manner.
Our News
