Patent ID: 6994810

Claim:
A method of retrofitting an injection molding machine to multishot operation, where the injection molding machine has a first stationary platen holding a stationary mold portion in communication with an injection cylinder and a second movable platen holding a movable mold portion joining with the stationary mold portion with movement of the movable platen, the injection cylinder, stationary platen and movable platen controlled by an injection molding controller, the method comprising the steps of: (a) attaching a mounting directly to one of the movable and stationary platens; and (b) adjustably attaching a second injection cylinder to the mounting; (c) connecting interface electronics providing an interface between the second injection cylinder and the injection molding controller to the injection molding controller to coordinate the operation of the second injection molding cylinder with the movement of the stationary and movable platens; wherein the second injection cylinder is attached to the movable platen to engage with the movable mold portion.