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Calculation of Punching Force of Conventional and Model Packaging Steel Strip Die
by：Hongmei
2021-03-15
Calculation of Punching Force of Conventional and Model Packaging Steel Strip Die
The cutting edge of the conventional and pattern steel belt die is right angle, so the shear strength is the same as the general conventional die. Since the ejector and unloader are made of polyurethane rubber (80A) the same as the cutter-type steel belt die, the calculation method of ejector force P and discharge force P is also the same. First, use the formula to find The compressive strains of the ejector and the unloader are then obtained from the compression performance curve family of standardized polyurethane rubber ejectors and unloaders used in conventional and model steel belt punches and finally substituted into the formula. Ejector force and discharge force.
The cutting edge of the conventional and pattern steel belt die is right angle, so the shear strength is the same as the general conventional die. Since the ejector and unloader are made of polyurethane rubber (80A) the same as the cutter-type steel belt die, the calculation method of ejector force P and discharge force P is also the same. First, use the formula to find The compressive strains of the ejector and the unloader are then obtained from the compression performance curve family of standardized polyurethane rubber ejectors and unloaders used in conventional and model steel belt punches and finally substituted into the formula. Ejector force and discharge force.
