SHASHUTSUSEIKEIKI

摘要

PURPOSE:To obtain an injection molder that would not cause defective molding or damage to a mold due to deflection of a support post, by extending a support beam that supports an injection unit in a direction away from the position of the support post, and providing a balance cylinder to the extended end of the support beam. CONSTITUTION:The support beam 6 attached to the upper end of the support post 5 is extended in a direction away from the position of an end 6a where a clamping cylinder 7 is attached and the balance cylinder 15 is attached to the extended end 6b. The lower end of a piston rod 16 of the balance cylinder 15 is secured to a frame 1. The relation between the attaching position x2 of the balance cylinder 15 and the attaching position x1 of the clamping cylinder 7 must be such that the moments of the cylinders are equal.