Rolling Mill Drives TRIZ Cases

Separate motors and linear drive shafts let each wire rolling stand vary reduction settings while simplifying gearboxes and limiting resonant vibration.

Higher-level stand speed control raises strip threading speed while maintaining temperature control and cutting idle time in rolling mills.

Independent chuck positioning in a rolling stand speeds roll installation and removal while supporting flexible roll configurations and torque needs.

Severing and accelerating strand sections helps thick rolled products retain rolling temperature, reduce stress, and coil reliably.

Offset rolling mill-side joints create space for larger cardan joints, improving high-torque transmission while limiting joint failure risk.

Entrance-side tension with zero exit tension lets a metal strip start rolling from the tip without lead material, improving yield and reducing setup cost.

A gear-free cam drive, sealed friction elements, and pressurized fluid ejection make base reforming more durable in tight necker-machine space.

A controlled speed-ratio change at the strip tail end stabilizes tension and keeps rolled cross-sections within tolerance.

Real-time stand torque control sets reference values early in bar feed to reduce deformation and enable smaller-diameter rolling.

Entry speed is tied to upstream exit speed during pass-schedule changes, redistributing mill drive loads without upsetting mass flow or thickness control.

Speed-dependent gain adjustment lets rolling mill tension control correct band disturbances faster, helping prevent cracks and hold thickness tolerances.

A cam-driven base reformer uses robust roller die elements and sealed bushings to cut wear, maintenance, and can body ejection issues.

Reference torque tracking with PI control stabilizes inter-stand bar drawing, cutting deformation, scrap, and required rolling line spacing.