An Optimal Design Approach for the Open/Close Blow-Station Cam Mechanism of A Rotary Type Blow-molding Machine

摘要

Based on the design requirements of the motion curve of blow-station, a Bezier curve is used as the motion curve of open/close blow-station cam. A multi-objective function for minimize angular acceleration and pressure angle with continuous angular jerk constraint is defined. By using Augmented Lagrange Multiplier (ALM) method and the theory of Envelope, the profile of the open/close blow-station cam with optimal motion curve is obtained. The result of this work shows the productivity of this machine is increased from 8,000bottles/hrs to 11,000bottles/hrs after using this optimum designed blow-station cam. It is 37.5% increscent to the available machine provided by a local company.