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Summarize This belongs to four roller plate rolling machine, up roller is fixed and it is the main drive, hydraulic motor driven by variable speed drive gear up and down roller belt drive, to provide torque for the roll sheet; under the roller moves vertically through the hydraulic pressure acting on the piston of hydraulic cylinder obtained in order to clamp plate for hydraulic transmission; the down roll of the sides with side roller and cylinder driven by oil. The machine advantage of end plate bending (pre-bending) and rolling can be conducted on the same machine
Main technical data
Machine model |
W12-12×2500 |
Max. bending thickness |
12mm
|
Roller working length |
2500mm |
Asymmetric rolling |
T30*B3200*min1200mm(σs≤245Mpa) |
Symmetrical rolling |
T25*B3200*min1000mm(σs≤245Mpa) |
Max. bending width |
2500mm |
Top roll diameter |
Φ280mm±3 |
Bottom roll diameter |
Φ280mm±3 |
Side roller diameter |
Φ220mm±3 |
Bending speed |
5m/min |
Side roll moving direction |
25° |
Bottom roller rising speed |
About 78mm/min |
Side roller rising speed |
150mm/min |
Up roll capacity |
320tons |
Side roll capacity |
320tons |
Down roll capacity |
230tons |
Main drive motor |
40000N.m |
Hydraulic motor |
15kw |
Max working pressure of hydraulic system |
19.5Mpa |
Structure and main parts
This equipment composed of work frame, upper roll device, main drive device, down roll device, side roll device, overturn device, hydraulic system (parts), electricity system (parts), and lubricate device.
3-1: Work frame:
Body from the base, a fixed side frame and the tip side of the rack, and each part is steel welded structure. Were fixed with bolts on both sides of the rack in the base and sides of the rack will be used to connect beams connected to rigidity good. Both sides of the rack up roller and side rollers with movement of rail, fixed on the side of the rack with roller bearing for half of the closed frame structure, have overturned side rack shelf support devices. Coil force in the process of both sides of the rack by the bear from the base not only supports the weight of the machine to ensure the accuracy of the role of equipment, but also enables a torque between the drive and chassis balance, and will join into one machine. In the now traditional large-scale four-roller bending machine body and the main gear is separate from the base installation.
3-2: Upper roll device:
The up roller gear drive from the main for turning, the ends of the SP-1 bearing support, drive-side through the flat key, off the main drive gear and connect the device to transfer torque, tip-side with the protection of Steel .
The material of the up roller is 42CrMo; heat hardening is HB220-280.
3-3: main drive device:
By the Hydraulic motor, three speed reduction gear, transmission torque to the up roller. This device includes motors and speed reduction gear box. Power supply is 380V/50Hz.
3-4: Down roller device:
Down roller supports under the bearing, the bearing housings on both sides of the rack mounted inside the track, the bottom of the piston and cylinder connected. Bearing in the liquid under pressure can rise and fall along the rail, according to the size of the thrust rod, steel plate under the roller clamping force required by the hydraulic system pressure control valve be adjusted. Addition of the down lower rollers can roll adjustment, improve the accuracy of product under the same material as the roll quality alloy steel 45#, heat treatment hardening is HB220-300
3-5: Side roller device:
Side of the roller bearing in the radial bearing pedestal, bearing on both sides of the rack mounted inside the track, the bottom of the piston and oil cylinder connected. Bearing in the liquid under pressure, can be tilted up and down along the rail, the size of the piston rod of the thrust force according to the needs of steel plate by the hydraulic system pressure control valve be adjusted. The side roll quality alloy steel, heat treatment hardening is HB220-280.
3-6: Balancing device:
Balancing screw tensioning device using climbing mechanism is disengaged when the tipping frame and the roll bearing overturned by gravity sag in the end rollers, the upper roller is in a horizontal position, the fixed end side of the outer end of the rod is provided balancing means and bolted to the base.
3-7: Overturn device:
Overturn device through the oil cylinder, hinges torn off and driving overturned on a roller bearing aircraft overturned in order to remove products.
3-8: Lubricate device:
The main and side roller drive gear reducer with oil pool splash lubrication, cooling, when the ambient temperature: -10 ~ 0 ℃ use of N46, N68 lubricant, when the temperature:0 ~ 40 ℃ use of N68, N100, N150, N220 oil and other lubrication points manually lubricating oil gun, the working medium for the calendar grease ZGN40-1 (winter use) and ZGN40-2 (summer only) fuel system of work for the class 1 or 2 times.
Hydraulic system (parts)
Hydraulic system consists of gear pump, valve, fluid connectors, hydraulic accessories.Superposition valve series hydraulic valves used, piping layout simple and easy to maintain debugging.
System consists of three circuit composed of overpressure protection and pressure control loops, synchronization loop, speed loop.
Loop through the main relief valve pressure regulator conditioning system working pressure. System working pressure 19.5Mpa.
By synchronizing circuit split on the throttle on the rise rolls, split-step drop coarse synchronization, throttle up, down regulating displacement sensor, synchronous positioning accuracy ± 0.15mm on a roll.
Speed control loop side of the machine overturned overturned, reset, be adjusted by the speed loop throttle throttle.
The roll up,down there were limits relief for protection.
Electricity system (parts)
Electrical control system includes the electrical box, operation control panel,handheld button. Main switch with short circuit protection and the main motor overload protection. Reversible motor contactor control by the exchange; control circuit is controlled by PLC programmable controller system, relay less reliable action and long life. Control cabinet with the completion of the process of rolling all products control buttons, lights, etc. to the operation of the machine control and status control.
Main component supplier
1 bearing
2 PLC system
3 electric component
4 hydraulic value
Standard exporting package or according your demand
1, inner machine, it is packaged in moisture-proof film.
2, pallet or wood box.
3, ground fixed bolt to confirm steady and avoid destroy.
4, tightly exporting standard bell to fasten machine in container.
5.Within 20 days after receive deposit
We supply 1 year Warranty and after 1 year, technical support will also be provided,Local support is also available .
Q1: How can i get the after-service?
A: We provide one year guarantee and lifelong maintenance.
We will send you the spare parts by free if the problems caused by us.
If it is the men-made problems,we also send the spare parts,however it is charged.
Any problem, you can call us directly.
Q2: Can I have a visit to your factory before the order?
A: Sure,welcome to visit our factory.
Our factory address: Bowang industry park,Maanshan City,China
Our factory is near Nanjing Lukou Airport.We can pick you up in the airport.
Hotel booking service is available .
Q3:Are you a factory or trade company?
A: We are manufacturer with own factory for 11 year, export proportion 50~60%.
Q4:How can i trust your company?
A:With 11-years-professional design, we can provide you suitable suggestion and lowest price
1. Assessed by third party, national patents and CE, ISO for all equipment, .
2. Welcome to inspect anytime. We are near to Nanjing Lukou Airport.
3. For our machine, we do very well on hydraulic balers,hydraulic shears,iron work.
Q5 :Is your price competitive?
A: Only good quality machine we supply. Surely we will give you best factory price based on
superior product and service.
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