CNC 4‑roll plate rolling machine uses a PLC + HMI based CNC system to control four rolls (top, bottom two side rolls) for one‑setup pre‑bending + rolling + rounding with high precision.
Ours 4 roll cnc plate rolling bending machine adopts SIEMENS PLC, and big size touch screen , which support remote cotrol
This is ours advantage , we can guide and supply technical service remotely .
1. Core Architecture (Hardware)
HMI (Human–Machine Interface)
10–15" industrial touchscreen; multilingual support (EN/CN/ES).
Functions: parameter input, real‑time position display, program storage, fault alarm.
PLC (Programmable Logic Controller) – the brain
Brands: Siemens, Omron, Mitsubishi, Xinjie.
Controls: roll synchronization, hydraulic valves, interlocks, safety logic.
Motion Control & Feedback
Digital encoders (resolution ≤0.1 mm) on lower/side rolls for closed‑loop positioning.
Synchronization accuracy: ≤±0.2 mm (both ends of rolls).
Hydraulic System
CNC‑controlled proportional valves for precise pressure/speed regulation.
Main components: hydraulic pump, cylinders, manifold, cooler.
2. Key CNC Software Functions
Automatic Calculation & Programming
Input: plate thickness, width, yield strength, target radius.
CNC auto‑calculates: side roll tilt, lower roll height, rolling steps; one‑click auto sequence.
Pre‑bending + Rolling in One Setup
Eliminates re‑clamping; straight edge ≤ 1.0–1.5 × thickness.
Conical rolling: independent side‑roll control for taper parts.
Program Storage & Recall
Save hundreds of recipes for batch production.
Material compensation: adjust for different yield strengths.
Real‑Time Monitoring & Safety
Roll positions, pressure, temperature, fault codes displayed.
Soft/hard limits, emergency stop, overload protection.
Remote Maintenance (Optional)
4G/WiFi for remote diagnosis, parameter upload, program updates.
