W12-8 * 2000 Four roll Plate Rolling Machine

1Main technical parameters

IIMain features of the equipment

1This device has a pre bending function at the end of the sheet metal, which can load the metal sheet metal in one go without turning the head to complete the pre bending of the sheet metal end and the rolling forming of the workpiece.

2This machine is a four roll plate rolling machine controlled by a console, using advanced technology,The side rollers move in an arc shape, resulting in a smaller remaining straight edge of the cylinder and a higher degree of roundness.

3The four working rolls of the machine are made of high-quality steel45#Materials, after forging, quenching and tempering treatment, rough machining and quenching and tempering treatment,HB270~300, medium frequency quenching after precision machiningHRC45-52Good comprehensive mechanical performance, high strength, strong wear resistance, suitable for high load work,Long service life.

4The rollers on this machine are made ofDriven by hydraulic motor,Low speed, high torque,save energyAt the same time, it hasPerfect braking effectuseensureDuring workpiece rolling and pre bendingAccurate positioning.

5The working roller end bearing of the machine adopts rolling bearings with low friction coefficient, reducing reactive power loss and saving energy.

6The lifting displacement of the lower and side rollers of the machine is controlled by a computer, automatically leveled, and displayed digitally on the screen with a synchronization accuracy of ± 0.2mmHigh precision rolling and easy operation.

7The lower and side rollers of this machine can be tilted at one end and can rise and fall simultaneously in the tilted state, which is beneficial for the rolling of conical workpieces.

8The machine is equipped with a movable operating platform, which is more convenient for operators to use. The touch screen displays the positions of the three work rollers, making it clear to the operator at a glance.

9The control system of this machine adopts the Japanese OMRONIntelligent high-speed PLC of the companyThe programmable controller system has protection functions such as fault diagnosis, intelligent identification of operational errors, monitoring of various parts of the machine tool, logical processing, and power-off memory; This system has the advantages of strong anti-interference ability, long service life, earthquake resistance, and stable operation.

10The sensors for the lifting displacement of the lower and side rollers of the machine use high-precision sensors to ensure position accuracy and achieve position monitoring of each roller.

11The main electrical components of the high-voltage section are all selectedSiemens Electrical ProductsIt has the characteristics of long service life and long fault free time.

12The main valve groups in the hydraulic system are all selected from Taiwan Oil God products. This valve group is a cast flow channel with high flow rate, low resistance, low pressure loss, and low heat generation, making the machine performance more reliable.

13The hydraulic system has suction and return oil filters to ensure the cleanliness of the system, an air filter to ensure normal breathing and water evaporation of the oil tank, and a dual channel safety protection device in the system to ensure the safe use of the equipment.

14Flip the bearing body（Inverted Head)Equipped with a tilting cylinder, the tilting head can tilt and stand up for easy material retrieval of the workpiece. The flipping and resetting of the flipping bearing body are equipped with interlocking devices. After flipping the flipping bearing body, all other actions are in standby mode, and can only be restored after the flipping bearing body is reset, providing safety protection.

15This machine uses hydraulic cylinders to control balance, which is easy to operate, time-saving and labor-saving, and greatly improves the service life of the machine tool.

16The tail of the upper roller is equipped with a balancing device, which balances the upper roller while flipping the bearing body. When the inverted head flips and discharges the material, the upper roller is in a balanced state by the balancing mechanism, making it easy to remove the cylindrical workpiece.

17The machine adopts a solid base with strong rigidity, easy lifting, and easy installation. The frame and base are both welded and annealed to eliminate internal stress and improve the accuracy of the rolling machine. The whole machine structure is composed of building blocks, with a beautiful appearance and easier maintenance.

IIIOverview of Equipment Structure

The equipment consists of four work rolls, left and right frames, base, tilting part, transmission part, and supporting sensor part, hydraulic system, electrical system, etc.

1Mechanical part

The work roll is the main component of the equipment,Using high-quality steel45#Material, quenching and tempering after rough machining,HB270~300, medium frequency quenching after precision machiningHRC45-52Strictly follow the various standard process requirements for manufacturing work rolls to ensure their comprehensive mechanical performance.

The base and rack are the main body of the equipment,Adopting a welded structure and strictly annealing according to the process to eliminate internal stress, it has sufficient strength and stiffness to ensure normal operation under full load working conditions.

The upper roller is the active roller, consisting ofHydraulic motor drive,Realize the rotation of the upper work rolluseensureDuring workpiece rolling and pre bendingAccurate positioningThe machine is guaranteed to have sufficient strength and rigidity as a whole, and the main load-bearing parts are reliably connected by keys and pins for easy installation and maintenance.

The lifting motion of the lower roller and the two side rollers is driven by oil cylinders at both ends, and the bearings at both ends are supported by self-aligning roller bearings. The lifting synchronization is controlled by a computer; The tilting side of the upper roller is equipped with a tilting oil cylinder, which can facilitate the unloading of the rolled workpiece and cylinder.

The working roller on the machine is the main driving roller, and the lifting and lowering of the lower roller and the two side rollers are both hydraulically driven. The lifting displacement is controlled by a computer, automatically leveled, and displayed on the screen with a synchronization accuracy of ± 0.2mmThe tilting and resetting of the flipping bearing body adopts hydraulic transmission, and the tail of the upper roller is equipped withHydraulic cylinder is a balancing mechanismIt can facilitate the unloading of rolled workpieces and cylinders.

This device is equipped withMobile independent consoleIt can be moved and operated at any time, and the machine is equipped with a safety interlock device. The machine has high technical level, full functions, high precision, and easy operation, making it an ideal CNC rolling equipment in contemporary times. It is the most ideal preferred model for rolling circular, curved, and conical workpieces in industries such as energy, transportation, petroleum, chemical, boiler, shipbuilding, hydropower, and metal structures.

2Hydraulic system

The hydraulic system of this equipment completes the following functions: driving the oil cylinder to make the lower roller move up and down; Drive the rollers on both sides to perform inclined lifting motion; Control the lifting motion of the balance cylinder; Control the tilting cylinder to perform lifting and lowering movements.

By using an electro-hydraulic directional valve, the lifting motion of the lower roller and the tilting lifting motion of the rollers on both sides can be controlled; By using a hydraulic control one-way valve, the work roller can stay at any position.

The circuit of the tilting cylinder is equipped with a one-way throttle valve, which can adjust the speed of the actuator appropriately.

The entire hydraulic system is designed reasonably and operates reliably, equipped with high-precision oil suction and return filters to ensure the cleanliness of the system oil. The system pipeline is arranged neatly, easy to operate, and flexible in action, ensuring that there is no leakage in the entire system.

The main valve groups in the hydraulic system are all made of high-quality products from Taiwan Oil God. Pumps, oil filters, motors, and seals are all produced by domestic famous brand manufacturers or Sino foreign joint venturesThe product has advanced performance and reliable quality. All hydraulic components undergo strict testing and screening before entering the factory to eliminate potential faults in advance.

3Electrical control system

3.1.Structural composition

The electrical system uses a touch screen display, andChoose OMRON from JapanIntelligent PLC of the companyAnd corresponding input and output modules.This configuration has been proven to have strong anti-interference ability, long service life, earthquake resistance, and stable operation during long-term use by various users.

The sensor adopts a high-precision encoder to ensure position accuracy and achieve monitoring of the position of each roller. The main components of the high-voltage section are all selected from renowned enterprises or joint venturesThe product has the characteristics of long service life and long fault free time.

3.2.Control system functions

A、Automatic control of work rollsSynchronized Mobile

Control the lower rollerSynchronous lifting,The synchronization accuracy is ± 0.2mm

Control the rollers on both sidesSynchronous lifting,The synchronization accuracy is ± 0.2mm

B、Display multiple real-time data and roll plate information

Real time display of absolute positions at both ends of the lower roller

Real time display of absolute position at both ends of the side roller

Real time display of inclination at both ends of the lower roller

Real time display of inclination at both ends of the side roller

C、The control system provides alarm information for easy operation and maintenance:

4、 Relevant standards for the entire process of equipment manufacturing execution

1JB/T8778-1998Technical Specifications for Four roll Plate Rolling Machine

2JB/T8796-1998Precision of Plate Rolling Machine

3JB/T1829-1997General Technical Conditions for Forging Machinery

5、 Manufacturers of the main components

7Technical data:

Provide a complete set of Chinese user manuals, safety operation manuals, electrical schematics, hydraulic schematics, and machine tool foundation diagrams.

8、 Acceptance criteria：

Customer requirements and product accuracy shall comply with national standards and regulations.

9、 Equipment after-sales service commitment

1. One year warranty and lifetime service.

2. Guide installation, free debugging, and provide free training for operators on behalf of the demand side.