Closing mechanism for the mold halves of an I.S. machine

A closing mechanism for molds of an individual section (IS) machine having two mold holders that can be displaced between an open and a closed position and are respectively designed for carrying at least one mold half, the mechanism comprising:

• at least one drive configured to displace the two mold holders between the open and closed positions, wherein each mold holder includes an integrated duct network configured to convey a coolant, the mold holders being supported on linear guides extending parallel to one another on both sides of the mold holders and displaceable between the open and closed positions;
• at least one spindle gear by which the two mold holders are coupled to one another and which is configured for generating a linear motion, wherein the at least one drive is coupled to the at least one spindle gear, the at least one spindle gear comprising a threaded spindle coupled to the at least one drive and having two oppositely oriented thread sections that are respectively engaged with a threaded sleeve coupled to a respective mold holder;
• a pair of housings configured as part of a machine base body of the IS machine and configured for at least accommodating the at least one spindle gear, the pair of housings being coupled to one another in a direction extending perpendicular to the linear guides by a pair of transverse structures;
• and
• at least one duct network configured to convey a coolant and which is arranged within the pair of transverse structures.