Plate rolling machine principle is a shaping machine for continuous point rolling of sheets, and has the function of rolling sheets of different shapes such as O-shaped, U-shaped, and multi-section R. Three roll bending machine has mechanical type and hydraulic type: mechanical three-roll plate rolling machine is divided into symmetrical and asymmetrical. Sheet metal can be rolled into circular, arc and conical workpieces within a certain range.
3 Roller Plate Rolling Machine Principle
The upper roller of the symmetrical plate rolling machine is in the symmetrical position of the center of the two lower rollers, and the hydraulic oil in the hydraulic cylinder acts on the piston to make vertical lifting motion, and the last stage gear of the main reducer drives the gears of the two lower rollers to mesh for rotational motion, so as to roll the plate. provide torque. The flat plastic metal plate of the plate rolling machine passes between the three work rolls (two lower rolls and one upper roll) of the plate rolling machine. With the help of the lower pressure of the upper roll and the rotation of the lower roll, the metal plate passes through multiple passes. Continuous bending (inner layer compression deformation, middle layer unchanged, outer layer tensile deformation), resulting in permanent plastic deformation, rolled into the required cylinder, cone or part of them. The disadvantage of this hydraulic three roll plate bending machine is that the end of the plate needs to be pre-bent with other equipment. This plate rolling machine is suitable for large plate rolling machines with a thickness of more than 50mm. A row of fixed idlers is added to the lower part of the two lower rollers to shorten the span of the two lower rollers, thereby improving the accuracy of the rolled workpiece and the overall performance of the machine.
Plate Roll Bending Machine Application
The use of plate bending roll machines is becoming more and more extensive, and the equipment in different fields, the models of plate bending machines and the types of plate bending machines are different. But it works the same way. For the symmetrical plate rolling machine, the upper roller is at the symmetrical position of the center of the two lower rollers, and the hydraulic oil in the hydraulic cylinder acts on the piston to act on the piston to make vertical lifting motion, and the last stage gear of the main reducer drives the two lower roller gears to rotate together. Reel plate provides torque.
Plate rolling machine equipment is widely used. Plate rolling machine is a kind of equipment specially used for metal sheet shaping, which is used in machinery manufacturing, shipbuilding, vehicle building, chemical machinery, industrial manufacturing and other industries.
Classification
The mechanical three-roll plate rolling machine is divided into symmetrical and asymmetrical.
Mechanical three-roll symmetrical
Performance characteristics of mechanical three-roller symmetrical plate bending machine: The structure of the machine is three-roller symmetrical type. The upper roller performs vertical lifting and lowering movement at the center of the two lower rollers. Rotational motion, through the output gear of the reducer meshing with the lower roller gear, provides torque for the rolled sheet. The disadvantage of this machine is that the end of the sheet needs to be pre-bent with other equipment.
Mechanical three-roller asymmetrical
Main features of mechanical three-roll asymmetric plate bending machine: The structure of the machine is a three-roll asymmetric type, the upper roller is the main drive, and the lower roller moves vertically up and down to clamp the plate, and meshes with the upper roller gear through the lower roller gear , at the same time as the main drive; the side rollers are tilted and lifted, with dual functions of pre-bending and rounding. Compact structure, convenient operation and maintenance.
Hydraulic Plate Rolling Machine Principle
The main features of the hydraulic three-roll symmetrical plate bending machine: the upper roller of the machine can be lifted vertically, and the hydraulic transmission of vertical lifting is obtained by the action of the hydraulic oil in the hydraulic cylinder on the piston rod; the lower roller is driven by rotation and is meshed with the output gear of the reducer. Provide torque for the coiled plate, and there are idlers at the lower part of the lower roller, which can be adjusted. The upper roller is in the shape of a drum, which improves the straightness of the product and is suitable for tanks with various cross-sectional shapes of ultra-long specifications.
It is an upward-adjusting symmetrical three-roll plate rolling machine, which can roll metal sheets into circular, arc and conical workpieces within a certain range. It is widely used in shipbuilding, boiler, aviation, hydropower, chemical, metal structure and machinery manufacturing industries.
It is suitable for bending deformation of metal sheets, and can roll circular, arc and conical workpieces within a certain range, and has the function of pre-bending the end of the sheet. The two lower rollers of this model are active rollers that can move horizontally, and the upper The roller is a driven roller and can move up and down. There are mechanical and hydraulic types of movement. The drive shafts are connected by universal couplings.