What are the advantages of the difference between the four roller rolling machine and the three roller rolling machine?

Plate coiling machine is a kind of non-metal sheet can be bent into a cone Spherical, cylinder or other shape of a common forging machine equipment, this performance is widely used in manufacturing, boiler steam, chemical, non-metallic construction and machine building and other industries.Four-roll plate coiling machine is suitable for metal sheet bending forming work, can coiling round, arc and a certain range of conical workpieces, and has the function of plate end pre-bending, the remaining straight edge is small, high efficiency, and can be used on the machine for metal sheet rough leveling.

four roller rolling machine & three roller rolling machine roller movement is different

However, they all work on the same principle, which is to use the principle of three-point fixed circle to roll different radii.The difference between the four roll rolling machine and the three roll rolling machine is as follows:

1. The upper roller (three roller rolling machine or Three roller stee plate bending machine) moves vertically up and down on the piston through the hydraulic oil in the hydraulic cylinder at the symmetrical position of the center of the two lower rollers, and the final gear of the main reducer drives the two lower rollers to rotate together, providing torque for the coiled plates.The four-roll plate coiling machine is suitable for the metal sheet bending forming work, can coiling round, arc and a certain range of conical workpiece, and has the plate end pre-bending function, the remaining straight edge is small, high efficiency, and can be in the machine on the metal sheet rough leveling.

2, Three-roll asymmetric plate coiler, the upper roller is the main drive, the lower roller vertical movement, so as to clamp the plate, and through the lower roller gear meshing with the upper roller gear, at the same time as the main drive;The side roll moves up and down, with double functions of pre-bending and rolling.Compact structure, convenient operation and maintenance.The upper roller of the four-roll plate coiler is mainly driven, connected with the upper roller through the reducer and the cross slider coupling, providing torque for the coiled plate;The lower roller for vertical lifting movement, through the reducer worm and worm gear (bevel gear) to pay the mother screw to pay, so as to clamp the plate, for mechanical transmission;The side roller is arranged on both sides of the lower roller and inclined motion along the frame guide rail, through the mother screw worm worm gear (or bevel gear) pay transmission;All four work rollers adopt rolling bearings.

3. When the four-roll plate coiler is working, the upper roller position is fixed, and the lower roller moves upward in a straight line to clamp the steel plate.The curvature radius of the drum is adjusted by the straight or curved upward roll movement on both sides.Four roller bending machine and Three roller stee plate bending machine (3 roller bending machine or Three roller stee plate bending machine) are rollers with different motion forms, but they all work on the same principle. They both use the principle of Three point fixed circles to coil with different radii.But the four roller plate bending machine pre straight edge and the roundness of the school circle is better than the three roller.

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The four-roll plate rolling machine is composed of four rollers, the upper roller is the main drive and the upper roller position is fixed, and the lower roller ends are driven up and down by the hydraulic cylinder.The lower roller can be raised and the upper roller clamping plate head, according to the need to change the distance between the side roller and the upper roller to bend the plate head at both ends.Then the lower roller drops, two side rollers rise, plate bending into cylindrical.Any machine should be operated correctly in accordance with the process requirements. Let's talk about the correct operation method of the four-roll plate rolling machine.

Generally, it is prepared from the following aspects:

1. Clarify machine functions

Plate rolling machine is a kind of public forging machine equipment which can bend and roll non-metal sheet into cone, spherical body, cylinder or other shape. This performance is widely used in manufacturing, boiler steam, chemical industry, non-metal structure and machine building, etc.

Understand how the machine works

Four roll rolling machine and three roll rolling machine roller movement form is different, but the working principle is the same, are using three point fixed circle principle to carry on the different radius of the rolling.The position of the upper roller is fixed, and the lower roller moves upward in a straight line to clamp the steel plate.The curvature radius of the drum is adjusted by the straight or curved upward roll movement on both sides.

Familiar with operating procedure

(1) coil machine must have a special person responsible for management.

(2) The operator must be familiar with the structure, performance and use method of the rolling machine, and can operate after being agreed by the responsible management personnel.

(3) carefully check whether the safety device is intact before starting.

(4) When operating, it is strictly prohibited to put hands and feet on rollers, transmission parts and workpieces.

(5) after the work is interrupted, the clutch should be hit to neutral.

(6) Multi-person cooperative operation must be commanded by a special person.

(7) Overload is strictly prohibited.

(8) The toppling reset of the lifting and turning bearing of the upper roller and the balance of the upper roller must be carried out after the main drive stops.

(9) It is forbidden to pile up the workpiece and sundry things in the workplace, and keep the machine tool and the site clean at all times.

(10) After the operation, the power supply should be cut off and the power box should be locked

Four roll plate machine is an important equipment in the production of enterprises, you must operate in the correct way during the use, otherwise not only equipment damage affects production, but also unexpected consequences will occur.