Through analyzing and researching in toggle clamp for manifold models (including back lever model, height of the crosshead, size of middle lever, locking final corner, clamping thrust corner and ratio of the levers' length), the writer is discussing for better model of presented above toggle clamp in the paper.

Discussion of elasticity mechanics properties of elbow rod fitting model for injection molding machine (part one)

The inner draw double arm link clamping mechanism has good movement characteristic and mechanical efficiency,so it is extensively used in the plastic molding machine.