1. Summarize:
This machine used to coil plate into different sharps such as cylindrical form, conic form and arc, it adopted Japan hydraulic technical.
Top roll can does vertical and level motion, up and down, parallel translation is display. This machine include pre-bending function.
2. Main technical data:
| Project |
Units |
Technical Data |
| Specifications |
|
RPB-40×2500 |
| Upper roller adding pressure |
T |
430 |
| Max width of roll board |
mm |
2500 |
| The length of working rolls |
mm |
2600 |
| Max thickness of plate pre-bending |
mm |
35 |
| Up roll diameter |
mm |
Φ500 |
| Down roll diameter |
mm |
Φ275 |
| Distance between two down rolls |
mm |
460 |
| Drive speed |
m/min |
about 4.0 |
| Max capacity of coiled board : |
Mpa |
σs≤245 |
| Main motor |
kw |
45 |
| Moving motor |
kw |
22 |
| Hydraulic motor |
kw |
5.5 |
Remarks: 1. Quantity of remain catheter≤2.5 times of plate thickness.
2. Bending precision, roundness, linearity, ends surface error all less than 3mm/M.
3.The Main Structure:
This equipment should be composed of main structure, hydraulic system , electricity control system and cone device.
3-1. The main structure
The main structure is composed of upper roller , down rollers and level motion device support rolls device , tuning device , balance device, lubricate device , left and right work frame and bottom plate.
1) The upper roller
upper rolls device composed of main cylinder, upper bearing pedestal, upper rolls, double self-aligning bearing .two cylinders provide the pressure for upper roll bending , main cylinder working pressure is 20 Mpa ,max pressure of upper roll multiply 0.8 times to compensate for pre-bending. Upper roll two ends fit with double self-aligning bearing to reduce the friction and motor power. The material of upper roll is 42CrMo , heat treatment is HB220-280. `(The upper roller)
2) Down roll and level motion device.
The material of down roll is alloy steel, heat treatment is HB220-280. it composed of down of roll, down roll bearing pedestal, down roll input gear, down roll, glide bearing. Down bearing adopt SF-2 oil glide bearing.
Level motion motor supply the power, through the strap drive to CWU worm wheel and pole speed reducer. Upper roll level motion drove by worm wheel and pole to finish bending in dissymmetry form.
( down roll and level motion device )
3) Support device
Composed of sloping block device, support device, support rolls bearing pedestal, support lifting device, support rolls can adjust up and down. The adjustment depends on plate speciation. The material of support is 45# heat treat HB 217-240, it made up in helix sharp to protect the surface.
(Support device)
4) Main drive device
It composed of motor, hard gear speed reducer, output gear, and main motor can tuning in two directions and provides bending pitch of strand.
( main drive device )
5)Overturn device
Composed of ram, bearing, tuning cylinder ( tuning device )
6) Balance device
Composed of balance compact, screw
3-2. Lubricate device
composed of lubricate pipe and lubricate pipe attachment, adopted GB7323-1994 NO 2 lithium grease.
3-3. Hydraulic system
Composed of Y series motor, gear pump , valves , oil tank, pipe and so on.
Max pressure is 20 Mpa , testing pressure is 24 Mpa , pressure adjusted by overflow valve, system working pressure 0-19 MPa , normal pressure is 15Mpa . the valves adopted from Taiwan.
3-4. Electricity system
Composed of electrical box, operation table, and manual button. The power is 380V50HZ adopted PLC control system code with longevity easily operate. Whole bending process can read from the indicator setting on the control box.
3-5. Digital display system
This machine adopts two sets of digital instrument and displacement sensor formed a reliable digital display and control system.
4,the processes of rolling plate( Rear bending )
Step 1: send the plate in and aligning it.
\* MERGEFORMAT
Step 2: Horizontal shift the upper to - X then drop it to Y1 , rotate the lower rollers reverse, making the plate to forming position.
Step 3: Press down the upper roller, rotating the lower rollers clockwise.
Step 4: Stop the upper roller to Y2, and rotate the lower rollers clockwise continuously.
Step 5: stop at the plate ends, press down the upper roller and stop at Y3, press at the plate ends directly to pre-bend it.
Step 6: Elevate the upper roller to Y2-α, Horizontal shift the upper roller to +X and press down to the same position Y2, rotate the lower rollers clockwise.
Step 7: Stop at the plate ends, press down the upper roller and stop at Y3, press at the plate ends directly to pre-bend it.
Step 8: Shift the upper roller to X = 0, press it down to Y4, counter-rotate the lower rollers, for bending compensation.
5. Inspection
JB/T8796-1998 Standard inspection/trial of machine at our factory before shipment is acceptable to us. Cost of your representative to your account.
Company Profile
SJR Machinery Co., Ltd. , was founded in 1984, which is the main partner member of China Jiangsu International Economic-Technical Cooperation Corporation. Our company specializes in the manufacture and import/export of brand new industrial machinery and tools. We are capable of producing more than 80 types of machines.Sincerely welcoming you to contact us for more information, we look forward to becoming your supplier in the near future.
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