Four Roller Rolling Machine

Four Roller Rolling Machine,W12

Applications of Four Roller Rolling Machine,W12 :
This plate bending machine is used to pre-bending and coiling various oil tanks, ships and water tanks etc. in the industries such as the pressure container, machinery, hydroelectricity, architecture. The machine tool also has the function of coiling and leveling.

Descriptions of Four Roller Rolling Machine,W12 :
1. The upper roller is the main drives. It drives the lower roller and side rollers through the friction force between the plate and the rollers, which offer the torsion for the coiling.
2. The upper roller is droved by motor, lower roller, side rollers, reversal frame and supporting rollers are hydraulic transmission.
3. The lower rollers move vertically; side roller move slant; synchronization precision is ≤ ±0.15mm.
4. The lower roller ascending to nip the plate to complete pre-bending of the plate; the side rollers ascending to complete the end pre-bending of the plate.
5. This machining machine has the symmetry bending and asymmetry bending capacity through changing the position of the side rollers;
6. This Rolling Machine adopts the central lubrication system.
7. OMRON PLC control system is employed in the plate bending machine.
8. High accuracy of the low roller and side roller position sensors are available for the adoption of light encoders.

Schematic Diagram of the Four Roller Rolling Machine,W12

Composition of Four Roller Rolling Machine,W12 :
The metal machining machine consists of the main structure, upper roller setting, main transmission setting, lower roller setting, equilibrator setting, reversal setting, base plate, electric system, hydraulic system and lubricating system.
Main structure
Main structure of the Four Roller Rolling Machine,W12 consists of base, fixed side frame and reversal side frame. Each part is steel welded structure;
The frames of the machine tool are positioned on the base by screws; and the two supports are connected together by articulated beam;
There are lead rails for lower roller and side rollers on the two side frames. In the fixed side stand, there is a closed structure bearing box of the upper roller. In the reversal side, there is supporting setting for the reversal side frame. The force during the coiling is endured by the two side frames;

Upper roller setting
Upper roller material 40Cr, tempering HB260-300, HRC45-50

Lower roller setting
Lower roller setting of the Rolling Machine is composed by lower roller bearing base, bearing, lower roller cylinder, lower roller hydraulic motor and so on.
Lower roller material 40Cr, tempering HB260-300, HRC45-50

Side roller setting
Side roller setting of the metal machining machine is composed by two side bearing base, bearing, side roller cylinder and so on.
Side roller material 40Cr, tempering HB260-300, HRC45-50

Reversal setting
Reversal setting of the plate bending machine is composed by ram, reversal cylinder and so on; it's easy to draw out the finished working piece.

Main transmission setting
It composed by YZR motor, V-type texrope and reducer.

Equilibrator setting
It adopts helix structure;
It's installed at the fixed side and could be tightened at the base through bolts.

Lubricating system
The main reducer and side rollers reducers adopt splash lubrication and natural cooling.
When surrounding temperature is -100℃, the lubrication oil type is N46, N48.
When surrounding temperature is 040℃, the lubrication oil type is N68, N100, N150, N200;
Oil gun can also be used to lubricate the other lubricating points; lubrication greases is ZGN40-1(winter) and ZGN40-2(summer), twice per duty.
Hydraulic system
The hydraulic system of the machine tool is composed of gear pump, valve group, and pipes. The system is composed by pressure adjusting circuit, synchrony circuit and speed circuit.
The pressure adjusting circuit can adjust the working pressure of the Rolling Machine through the overflow valve;
The Max pressure is 19.5Mpa;
The synchrony circuit separates roughly the hydraulic oil to the ascending and descending of the upper roller through the by-pass valve;
The restrictor valve adjust the upper roller ascending and descending;
The displacement transducer is adopted to detect the displacement, the synchronization precision is ±0.15 mm;
The speed circuit is used to control the dumping and resetting of the reverse device through adjusting the restricting speed by restrictor valve.
Electric system
Electric control system of the metal machining machine consists of controlling table, hand button box.
The motivate power is three-phase four lines 380V/50Hz.
Controlling circuit adopts PLC programming control system and it has a long service life.
Control box is equipped with all controlling buttons and direction lights: so the working status of the Rolling Machine can be monitored.

Donghai is China's professional four-rollers rolling machine manufacturer, locates in Nantong, Jiangsu Province, east to Yellow Sea, facing Yangtze River on the south. The location is also close to Suzhou and Shanghai with convenient transportation especially shipping. Because of the geographical advantage, we lower our manufacturing cost. Your transportation cost can also be saved in a large part.
We can provide different types of machine tools, such as shearing machine, rolling machine and press brake. These products enjoy high quality and competitive prices, welcome customers to contact us!