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Specifications
1.three-roller machine2.initiative- drive device
3. the balance device for upper roller
4.overturn device
5.expediently
W11S-20x2500 rolling pipe bending machine
1 .Introduction
The machine is a kind of three-roller machine with liquid pressure for all-purposes. It can shape steel board into cylinder, U model etc.
The upper roller may move vertically or horizontally.
Pre-bend of steel board performs with movement of upper roller based on no symmetry of location. Round mode of steel performs by two down rollers with slowdown of running from electric machine
The down roller fix the height, so material can easily enter the machine and workers operate machine expediently.
2. Main technical parameter of the equipments
Part number |
upper roller movement for all-purposes |
Add pressure |
130 Tons |
Rolling capacity |
245Mpa |
Max bending length |
2500 mm |
Roller working length |
2600 mm |
Axletree |
wafangdian Axletree |
Roller material |
42 CrMo |
Diameter of upper roller |
330 mm |
Diameter of down roller |
180 mm |
Center distance |
300 mm |
Speed of roll |
About 4 m/min |
Full load condition End line length |
≤(3-2.5)times plate thickness |
Oil cylinder driving speed |
120mm/rmin |
Quantity of supporting rollers |
4 |
Group quantity of supporting rollers |
1 |
Power of main motor |
15 KW |
Power of hydraulic motor |
5.5 KW |
Power of removable motor |
2.2 KW |
3. Main structure
The main structures include upper roller device, vertically movement device for upper roller, down roller device, horizontally movement device for upper roller, supporting roller device, initiative running device, overturn device, machine frames n the left and right, bottom base frame
axletree
3-1 upper roller device include key oil box, base frame for upper roller, adjustable axletree on both sides for upper rollers, etc.
Main oil box and piston pole belong to 45# forged parts, inter surface of box polish, the surface of piston pole plated by Cr. Pressurized loop choose Yx type from Japan. The pressure of material shape is from cavity work without pole. Piston pole of main oil box connect with axletree from of upper roller .the main oil piston work under pressure of 19.5Mpa
The upper roller is designed as drum shape. Normally utilize 0.7 load of upper roller to mend deform degree .The hardness disposal of roller include two steps: firstly harden
On the both side of upper rollers, install two rows and two lines adjustable axletree
3-2 the movement device vertically for upper roller
Directly drive with double oil boxes and the highest pressure for work reach 19.5Mpa. There are two roll axletrees on both sides of upper rollers. The base frame of these roll axletrees may move vertically with the help of removable piston pole along the trace of kickstand guide. The displacement transducer installed on both sides of the axletrees, so that the quantity display can show movement distance of upper rollers
3-3 the device for down rollers and the movement device horizontally
The device for the down rollers include down rollers, axletree frame of down rollers, gears for down roller drive, the base frame of sliding bearings for down rollers, etc. The key initiative gear drive the input gear which drive the upper rollers.
The movement devices horizontally mean the removable electric machine offer power through snail-shape gear and snail-pole box. The system movement of snail-shape gear, snail-shape pole, thread pole and thread venter drive the upper rollers horizontally to perform material roll according to asymmetry mode. The movement location may show by digital display .
3-4 the devices of supporting rollers
The devices of supporting rollers include thread pole, thread venter and the supporting rollers, etc . The supporting roller may adjust height vertically according to the specification of material to be rolled.
3-5 initiative- drive device
The initiative-drive device include initiative electric machine, slowdown machine. The initiative-drive device may roll in the positive and negative direction in order to offer power for material roll.
3-6 overturn device
The overturn device include a liquid-pressure box and joint pole structure, which drive the base frame of the axletree for the upper roller to overturn or combine again. All power of oil box is from the automatic power station with liquid pressure.
3-7 the balance device for upper roller
Fix the upper roller at the height position by pressing the tail position of upper roller. So the upper rollers keep balance by supporting of the base frame of the axletree and pressure of the balance pole. Then the overturn axletree can overturn or combine again. The upper roller move to the highest position inspected by distance switch
4 .liquid-pressure system
The liquid-pressure system include oil pump, group valve and pipeline, etc.
The press valves choose the series of Taiwan (valves). The pipeline layout is succinctness. Maintenance and adjustment are convenient. The system include three kinds of loops: pressure adjustment loop, synchronization loop, speed loop. The pressure adjustment loop perform system work pressure by main overflow valve. The system pressure reach 10.5Mpa.
Synchronization loop perform the upward and downward of the upper roller at the same with upward and downward speed adjusted by period electric current
5. Electric control system
The electric control system of equipment include electric control box, operation button control board and hand carry button box. Dynamic power: 380/50HZ. The main switch has the function of short circuit avoidance and over loading of main electric machine avoidance. The running exchange of electric machine in the positive and negative direction is controlled by intercommunion instrument of alternation current. The control circuit adopts PLC control which power is more creditable and life is longer. The upper roller move horizontally and vertically by the control of transducer inspection and touch display. The transducer can set random operation point for convenient mass production. The operation is convenient for efficiency improvement. At the same time there is automatic inspection function to avoid any mistake. So there is wrong record. The operation steps are all shown on the display.
6. Main characters of equipments
High accurate end bend, Per-bend the end of material perform by changing the distance of the upper roller move horizontally, and the strait line length can be settled freely. The upper roller directly press the material and control the mode of the strait line in order to achieve high accurate end bend.
The accuracy of the finished goods is much better the common goods
The upper rollers design as drum mode. The supporting rollers cooperate with upper roller for adjustment and connection. The material which thickness from the thin till thickness can be rolled into dimension accurate part such as a round or a strait line and void small bag shape or back corner.
7. Quality guarantee period
free service for any quality issue within one year. And give the service for all time.
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