Description
A plate rolling machine is a machine used to roll different kinds of metal sheet into a round or conical shape. It can be also called roll bending machine, plate bending machine or rolling machine. It is widely used in boiler, shipbuilding, chemical industry, metal mechanism and machinery manufacturing industry.
Features
The plate rolling machine is very useful for getting cylindrical steel items and is featured by good performance. Bottom rolls of plate bending machine are fixed and driven by reduction gear. Top roll rotates in fixed position and can be adjusted up and down manually by adjustable screws.
Advantages
The plate rolling machine is easy to maintain and useful for various jobs. It is of modern design and rigid structure. It is of simple mechanism that even semi-skilled worker can do accurate job. This plate bending machine is equipped with molds, thus it is capable of punching all kinds of bores and slots for sliding window or casement window. You can change the combination mold easily and quickly. Machine frame and worktable enjoy high guide precision, good rigidity and resistance to lateral force.
Working Principle
The upper roller of plate rolling machine is in the middle of the distance between two bottom rollers. Driven by hydraulic oil, It is put into vertical lifting movements. Besides, with main reducer, the upper roller puts the lower roller into rotation. In this way, the plate bending machine can be forced into working. Processed modable metal sheets should be within processing capacity of the rolling machines. Through the 3 work rolls (two bottom rollers and one upper roller), these metal plates are bended and made into desired products with permanent deformation. In details, the metals can be rolled into cylinders and cones.
Classification
Plate bending machines can be divided into several categories. Firstly, according to roller quantity, it can be classified into three or four roller bending machine. Secendly, in terms of transmission ways, it can be the machine driven with mechanical methods or hydraulic power. Besides, the three roller roll bending machine may be known as the asymmetrical one, or horizontal three roller plate rolling machine and universal three rolling machine. Unlike the three roller ones, the four roller bending machines are used to process large-sized sheets, such as ship plates.
Range
- Upper Roller Universal Plate Rolling Machine
Excellent bending craft is applied. No warps arises in the continuous bending process. Besides, intelligent human-computer interface is applied to control bending work, and high precision is realised by automatic error compensation.
- Level-down 3 Roller Plate Bending Machine
This rolling machine adopts a newly developed product which combines domestic specific circumstances with overseas advanced mode. The three roller plate rolling machine is reasonable in structure and stable in performance.
- Four Roller Plate Bending Machine
The upper roller of this machine rotates in a mechanical way, and the bottom and side rollers are of hydraulic transmission. The operation is supplied by electric power. This machine can finish the prebending of sheet metal at both ends. It can also do reshaping and leveling work. This rolling machine features high efficiency.
- Three Unsymmetrical Plate Bending Machine
Asymmetrical plate rolling machine, also known as asymmetrical 3-roller bending machine, adopts the three-roller asymmetrical structure with the upper roll as the main drive and the lower roll making vertical movement so as to clamp the plate materials tightly.
- Mechanical Symmetrical Rolling Machine
This plate bending machine is adjustable three-roller plate (universal) controlled by NC upper roll, used for bending roll of a certain thickness of metal plate at room temperature to tubular, arc or taper parts.
- Hydraulic Symmetrical Rolling Machine
The construction of this plate rolling machine does vertical motion up and down through screw and worm gears. Decelerator gears and bottom rollers provide torsion moment for coiling sheet metal.
- Trailer Plate Bending Machine
This machine is suitable for all kinds of cross section shapes of tanks rolling of trailer. The upper roller of this plate rolling machine can move in vertical and horizontal direction, and the vertical lift is of hydraulic transmission. With hydraulic oil, the piston lever is driven into horizontal motion. Then, torsion is sequentially tranferred by worm, lead screw, etc. Finally, the upper roller is put into horizontal motion and the lower one into rotation. The lower roller of this plate bending machine is equipped with rollers and is adjustable, and the upper roller is of drum shape, improving the straightness of the product.
- Marine Plate Rolling Machine
This machine is a kind of rolling machines. Its structure is of three roller symmetric style. The upper roller of this plate bending machine is in vertical lift movement in the central symmetric position between two lower rollers, and the vertical lift is of hydraulic transmission. After the piston rod is put into motion by hydraulic oil, the two lower rollers of this plate rolling machine are in rotation movement. Through the output gear of the speed reducer and lower roller gearing mesh, the torque is created for rolling plate. The bottom of the two lower rollers is equipped with multiple sets of roller to improve the roll stiffness, and vertical adjustment can be performed. The upper part of the roll is equipped with rigid girder, and multiple sets of roller are equipped between the girder and the roller to improve the stiffness of roller.
Maintenance and Repair
- Lubricate the machine parts, including the oil cup, according to specifications in the sketch map.
- Roll the metal plates which are within rolling capacity of plate bending machines. The maximum thickness of steel sheets is 20 mm, the maximum length is 2500 mm, and the yield stress is no more than 250 Mpa.
- Once the electric power gets supplied, the plate rolling machine should run for a while and be check if there is any malfunction. In details, the lower rollers should be set to rotate both clockwise and anticlockwise; and the upper roller is put into lifting motion.
- Operators should manipulate the machine in accordance with operation regulations. When the upper roller has been lifted to the largest height, operators should pay more attentions to security problems.
- In accordance with the plate bending process and the operation method, when the upper roller is to the limit position, please pay great attention to the safe operation of the plate bending machine.
- Only after the main drive is closed, can the upper roller be up and down.
- If there is some abnormal phenomenon in operation, please stop the plate rolling machine and solve the problems..
- Staffs should coordinate with each other in operation, and conform to the person in charge. Do not open the plate bending machine without permission from the commander.
- Watch out for injury because of bending your hands together with the sheets.
- Prevent the sheet materials from colliding with machines when these materials are being lifted.
- Clean the workshop after bending work. Besides, operators should power off the plate bending machine and conduct maintenance onto it.
Founded on Oct. 25th, 2004, HB Machinery Co., Ltd. is a professional manufacturer and supplier of shear machines, bending machines and rolling machines. Our company is a key enterprise among national engineering industry. With the registered capital of 3,980,000 RMB and rich experience, Nantong Liwang manufactures its own brand products, named LiWang. The main products include plate rolling machines and we have a lot of those plate bending machines for sale.