The coiling machine is a kind of equipment for bending and forming a sheet by using a work roll, and can form parts of different shapes such as a cylindrical piece and a cone, and is a very important processing equipment. The working principle of the coiling machine is to make the work roll move by the action of external force such as hydraulic pressure and mechanical force, so that the sheet is bent or rolled. According to the rotation movement and position change of the work rolls of different shapes, elliptical parts, curved parts, cylindrical parts and the like can be processed.
The upper roller of the symmetrical bending machine acts on the piston for vertical lifting movement through the hydraulic oil in the hydraulic cylinder in the central symmetrical position of the two lower rollers, and the two lower roller gears are meshed by the final gear of the main reducer for the rotary motion, which is a rolled plate. Torque is provided. The flat plastic sheet of the coiling machine passes through the three work rolls (two lower rolls and one upper roll) of the coiling machine, and the metal plate passes through multiple passes by the lower pressing of the upper roll and the rotating motion of the lower roll. Continuous bending (inner layer compression deformation, middle layer constant, outer layer tensile deformation), permanent plastic deformation, roll into the required cylinder, cone or part of them. The disadvantage of this hydraulic three-roll bending machine is that the end of the plate needs to be pre-bent by means of other equipment. The coiling machine is suitable for large-scale coiling machines with a coil thickness of 50mm or more. A row of fixed rollers is added in the lower part of the two lower rollers to shorten the span of the two lower rollers, thereby improving the precision of the rolled workpiece and the overall performance of the machine.
