W12CNC Plate Bending Machine with Remote Control Hydraulic 16x2000mm Four Roller Plate Rolling Machine

آلة لف الألواح ذات الأربع أسطوانات من سلسلة W12CNC

This machine is a four-roller plate rolling machine. Its operational principle involves the coordinated movement of four rollers:

• Top Roller: Acts as the main drive, rotating to pull the plate through.

• Lower Roller: Moves vertically to clamp the plate and generate the necessary feeding friction.

• Side Rollers: Adjust up and down at an angle to the vertical axis, applying precise force to bend the plate to the desired curvature.

The significant advantage of this configuration is its ability to adjust the side rollers for both symmetric and asymmetric bending. This process minimizes the un-bent flat ends at the plate’s leading and trailing edges. Consequently, unlike three-roller machines, it eliminates the need for a separate pre-bending operation and dedicated equipment, while also providing a rough leveling function.

Due to these efficiencies, this machine is widely used in critical sectors including petroleum, chemical, boiler and pressure vessel manufacturing, shipbuilding, hydroelectric power, metal structure, and machinery industries.

A. Top Supporting Device (Optional)

• Function: Provides internal support during automated rolling of cylinders to prevent sagging and control deformation.

• Operation: Hydraulically-driven, adjustable frame moves synchronously to support from inside the workpiece and retracts to clear the seam.

• Benefit: Improves quality, efficiency, and reduces manual labor.

• Installation: Requires customer to pre-embed foundation anchors for two ground support points.

B. Side Supporting Device (Side Supports)

• Function: To support large-diameter cylinders during rolling, preventing sagging and ensuring accuracy.

• Design: Each side features multiple rows of rollers.

• Operation: Each support can be split into two sections for independent operation, providing better conformity.

• Multi-Purpose: When lowered, the supports can act as rollers.

• Additional Feature: The infeed-side support is equipped with an axial hydraulic push rod

معلمات الآلة 

Control System Technical Features

• Core Architecture: Comprises a high-reliability industrial PLC and rotary encoders, forming a high-performance, stable control system.

• CNC Capabilities: Provides real-time monitoring, seamless data transfer, and a power-off memory function to retain settings.

• Precision Synchronization: The PLC automatically controls the lower and side rollers, guaranteeing a synchronization precision of ±0.15 mm.

• Human-Machine Interface (HMI): A programmable display shows real-time roller positions and allows for parameter setting.

• High-Accuracy Sensing: Displacement transducers offer a resolution of 0.10 mm and a display accuracy of ±0.10 mm.

• Smart Functionality: Equipped with an automatic self-diagnostic and judgment function.

عملية ثني الصفائح

1. Standard Plate Rolling Procedure

   1. Position and Clamp: Align the leading edge of the plate with the front main roller. Raise the lower roller to clamp the plate securely.

   2. Set for Pre-bending: Retract the plate so its leading edge is near the nip point of the upper and lower rolls. Lower the front side roller and raise the rear side roller to their pre-bending positions.

   3. Pre-bend the Edge: Drive the main rolls to rotate the plate. Pre-bend the leading edge to the required curvature.

   4. Set for Rolling: Lower the rear side roller and raise the front side roller to their starting positions for the full rolling cycle.

   5. Roll the Plate: Drive the main rolls to continuously roll the plate into a cylinder.

   6. Finish the Roll: Once the trailing edge of the plate approaches the nip point, stop rotation to complete the rolling process.

تكوينات الجهاز