What is the difference between two-roller bending machine and four-roller rolling machine for sheet metal
The sheet metal two-roll rolling machine is a kind of public forging machine and equipment that can bend non-metal sheet into a cone, sphere, cylinder or other shapes. Chemicals,
non-metallic structures and machine building businesses. The four-roller rolling machine plate rolling machine is suitable for the bending and forming of metal sheets. It can roll round,
arc and tapered workpieces within a certain range, and has the function of pre-bending the end of the sheet. The remaining straight edges are small, and the work efficiency is high.
The metal sheet can be roughly leveled on this machine.
The two-roller bending machine and four-roller rolling machine for sheet metal have different roller motions. But their working principles are the same, they all use the principle of
three-point fixed circle to roll different radii. Wuxi Shenchong believes that the difference between the four-roller rolling machine and the sheet metal two-roller bending machine is as follows:
- The upper roller of the sheet metal two-roller bending machinebending machine is at the symmetrical position of the two lower rollers through the hydraulic oil in the hydraulic cylinder acting on the piston to move vertically, and the final gear of the main reducer drives the gears of the two lower rollers to mesh for rotational movement. Provide torque for rolled sheets. The four-roller rolling machineplate rolling machine is suitable for the bending and forming of metal sheets. It can roll round, arc and tapered workpieces within a certain range, and has the function of pre-bending the end of the sheet. The remaining straight edges are small and the work efficiency is high. The metal sheet can be roughly leveled on this machine.
- two-roller bending machineasymmetrical plate bending machine for sheet metal, the upper roll is the main drive, and the lower roll moves vertically to clamp the plate, and the lower roll gear meshes with the upper roll gear, and serves as the main drive at the same time; the side rolls are tilted Lifting movement, with dual functions of pre-bending and rolling. Compact structure, convenient operation and maintenance. The upper roller of the four-roller rolling machinebending machine is the main drive, which is connected with the upper roller through the reducer and the cross slider coupling to provide torque for the rolled sheet; the lower roller performs vertical lifting movement, and is provided by the reducer worm gear (bevel gear) The nut and screw are obtained for clamping the plate and are mechanically driven; there are side rollers on both sides of the lower roller and they are tilted along the rack rails, and are driven by the nut and worm worm gear (or bevel gear) ; All four work rolls adopt rolling bearings.
- When the four-roller rolling machinebending machine is working, the position of the upper roller is fixed, and the lower roller moves upward linearly to clamp the steel plate. The rollers on both sides move in a straight line or arc to move closer to the roller to adjust the radius of curvature of the reel. The English names of the four-roller rolling machineand the two-roller bending machine for sheet metal are different in the form of roller movement, but the working principle is the same. They both use the principle of three-point fixed circle to roll with different radii. However, the pre-bending straight edge and roundness of the four-roll bending machine are better than those of the two-roll metal sheet.
- The four-roller rolling machinebending machine is composed of four rollers. The upper roller is mainly driven and the position of the upper roller is fixed. Both ends of the lower roller are driven by hydraulic cylinders to lift. The lower roller can be raised to clamp the head of the plate with the upper roller, and the distance between the side roller and the upper roller can be changed as needed to bend the heads at both ends of the plate. Then the lower roll is lowered, the two side rolls are raised, and the plate is rolled into a cylindrical shape. Any machine must be operated correctly according to the process requirements.
sheet metal four-roller rolling machine :
sheet metal 2 rolls roller rolling machine :
