• Top roller can do both level movement (from left to right) and vertical movement (from up to down).
• Bottom roller is fixed. It just does rotation clockwise and counterclockwise.
• Pre-bending is achieved by horizontal movement of upper roller and presses the end of plate .High precision pre-bending, freely control the straight side of plate.
• Rolling round, it is achieved by means of the motor and reducer to drive two bottom rollers.
Product Description
This machine droved by hydraulic to the sheet plate into rolls.
The upper roller can be shifted in the direction of horizontal and vertical
By adjusting the upper roller, you can obtain the function of pre-bending.
When making the rolls, by driving the motor and reducer (gear box) to make the two lower rollers action and finishing the rolls.
HARDENED ROLLS WITH 42CrMo MATERIAL
1.The top roller is designed as drum shape.
2.Support roller install in the lower of bottom roller to help bend a perfect cylinder from thin to thick plate.
MOVING AXIS AND OVERTURNING DEVICE
1.Can achieve pre-bending of the sheet, reducing.
2.Pre-bending of the sheet can be achieved, reducing the amount of straight edges
3.Opening the overturning device, it's easy to remove the workpieces.
HYDRAULIC SYSTEM
1. Through exclusive technology, it can develop cones as easily as competitive machines can develop cylinders.
2.It eliminates scarring on the surface of shell or roll and also eliminates, in most cases, the need for grinding the lamination on the minor diameter edge.
3. valve made in Japan.
MAIN MOTOR
1.Main power: China famous brand.
2.Main electronic: elements: Siemens made in Germany.
PLC CONTROL SYSTEM
1.HMI(human machine interface), intelligent operation, self-compensating, single operate, high efficiency, safe and convenient.
2.Many models for choice, economic numerical control model.
3.A PLC control system ensure the machine bottom and lateral rolls operate synchronously. Up to eight steps can be programmed with the touchscreen.
The machine consist of upper lower equipment ,lower equipment and horizontal shift equipment, supporting equipment, main transmission equipment, reversing equipment, left and right side frame and the bottom support etc.
3-1.upper-roll equipment
It's consists of main cylinders, upper roller bearing seats, the two main oil cylinders supply the needed bending force, the working force of main cylinder is 19.5MPa,the upper roller looks like drums.
The material is 45#,and the hardness is HB260-300,HRC45.
3-2.lower rollers and horizontal shift equipment
The lower rollers is consisted of lower rollers, lower rollers bearing seats, lower roller input gears, lower roller sliding bearing, etc.
The horizontal shift equipment drove by horizontal shifting motor, via the worm reducer. Worm wheel and worm bar also ball screws realize the function of symmetry rolling.
The lower main motor supply the power to the lower rollers via the main transmission gear, lower roller input gear, open-type transmission shaft.
The horizontal shaft equipment consist of :horizontal shifting motor, worm gear traducer, worm gear and worm bar, etc.
The material is 45#,and the hear treat hardness HB260-300,HRC45.
(lower roller)
3-3.supporting roller equipment.
Consist of ball screws reducer construction.
The supporting roller can be adjust up and down according to the amount of the loading force.
3-4. Main transmission equipment.
Consist of main motor, V-belts, gear reducer, electro-hydraulic braking, etc.
3-5. Unloading equipment.
The equipment consists of sliding seat, unloading cylinder, and this is to unload the working pieces.
3-6. Fixed, unlied-side frame, bottom frame.
All the construction e welded by the sheet plates.
hydraulic system.
Consist of gear pump, Solenoid station, and the pipes circuits.
The solenoids made in Tai Wan.
The hydraulic system consists of 3 kinds of circuit, pressure adjusting circuit, symmetry circuit, speed circuit, etc.
The pressure adjusting circuit adjusting the working pressure by main overflow valves, the system working pressure is 19.5MPa.Symmetry circuit can made the upper roller up &down by adjusting the throttle, and the symmetry accurate is ±0.20mm.
The speed circuit control the unload side frame traversing and re-set, and the speed can be adjusted by the throttle.
Electrical control system.
It consists of electro-control-station (box), manual-handed bottom station, power source is 380V/50Hz.
The main switch has the functions of short -circuit protection and the main motor over-loaded protection function. The motor directions can be controlled by A.C contactor, the control circuit controlled by PLC controller and the Touching Screen-Inter face system. The symmetry precession is very high, with the reliable action, and long life. All control buttons indicators are fixed is the Electrical-control-box.
Main characteristics of the machine.
6-1.High precession of the top-end pre-bending .
When pre-bending the top-end section, by changing the amount of the horizontal shifting of the up roll apply the pressing force directly to control the end shapes to realize the high precession end-pre-bending.
6-2.The working piece can obtain the precession from the very thin plate to the max. thickness.
6-3.NC control
One person can operate the machine by NC system and thus improve the high efficiency.
- Range of supply.
7-1.Inside the machine
1)machine body
2)electrical equipment
3)hydraulic equipment
4)lubricating equipment
5)motor circuit components & necessary materials (from the control box to exclusive construction.
6)hydraulic circuit component and necessary materials
7)paint
8)standard component
7-2.Outside the machine
1)foundation base, installation connection and other wire
2)plates around the machine
3)the initial electrical wires and necessary wires
4)connection wire to earth the necessary wires
5)hydraulic oil and lubricating grease
Manufacture & Inspection confirm to the following standard.
8-1.JB/T8796-1998 (roller, precession)
- Manufacturer of the standard parts
| NAME |
Manufacture |
| Bearings |
Type |
Double row aligning bearing
|
| Manufacture |
Wafangdian |
| Rollers |
Material |
45# |
| Manufacture |
Nangang/Warwick Steel
|
| Body frame |
Material |
Q235A |
| Processing methods |
Welded structural parts, annealing stress - shot blasting, CNC boring and milling machine machining
|
| Manufacture |
Pully |
| Hydraulic motor |
Nantong tongde |
| Main electrical element |
SIEMENS |
| Hydraulic system |
Pump |
Type |
Gear pump |
| Manufacture |
Changyuan |
| Valve |
Manufacture |
YUKEN |
| cylinder |
Piston rod |
45 Forgings, Heat treatment HRC48-52
|
| Manufacture |
Nantong |
| Sealing |
Yx |
| Manufacture |
NOK/dingji |
Electric system
|
|
digital control system |
| Hydraulic motor |
Nantong tongde |
| Touch screen |
Weilun |
| PLC |
XINJE |
| Sensor |
Milante |
| Main electrical element |
SchneiderElectric/Siemens |
Audited Supplier 
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