Page 69 - 《橡塑技术与装备》英文版2026年1月

PROCESS AND EQUIPMENTS

1-Mold; 2-Segmented mold device; 3-Upper vulcanization chamber
Figure 9 Mutual positional relationship between the
segmented mold and the steamer system

1-Segmented mold cylinder; 2-Segmented mold bracket; 3-Press plate;
4-Lock ring; 5-Segmented mold rod; 6-Guide rod; 7-Unlocking plate;
8-Intermediate trunnion seat; 9-Lock release cylinder, etc.
Figure 8 Top-mounted segmented mold

The operating principle is that, driven by the segmented
mold oil cylinder, the piston rod of the oil cylinder extends and
contracts, allowing the segmented mold to be in the open or
closed position, thus completing the work conversion between
mold release and mold clamping.
The segmented mold device of the curing press for
engineering tires, developed by MESNAC (Figure 9, Figure 1-Cover plate; 2-Segmented mold rod; 3-Guide rod; 4-Pressure plate;
10), primarily addresses the issues of poor connectivity, 5-Heat shield; 6-Segmented mold bracket; 7-Oil cylinder connecting plate
synchronization, and stability between the segmented mold Figure 10 The frame-type curing press segmented mold
device developed by MESNAC
device and the mold due to the top-mounted installation
method, single-cylinder pressure supply, single-guided
The working principle of the segmented mold device of
segmented mold guide rod, and semi-frame segmented mold
the hydraulic engineering tire curing press: It has the function
bracket. The segmented mold device adopts a bottom-mounted
of achieving mold release and mold closure. During mold
installation method, with the device installed at the bottom of release, the oil cylinder drives the segmented mold rod to push
the lower curing chamber. It utilizes dual cylinders for pressure
the segmented mold open. The segmented mold rod cooperates
supply, a dual-guided segmented mold guide rod, and a frame-
with the locking ring and works under the drive of the mold
style segmented mold bracket. This structure offers excellent release and locking oil cylinder. The oil cylinder piston rod
guidance, uniform force distribution, and high stability,
extends, and the segmented mold device is in the mold release
fundamentally solving the problems with the connection
position, separating from the mold. During mold closure,
between the segmented mold device and the mold, thereby
the oil cylinder drives the segmented mold rod to close the
achieving enhanced synchronization and stability.
segmented mold. The segmented mold rod cooperates with

Vol.52，2026 ·23·