

Add to Cart
I. Summery:
The equipment is used for straightening steel pipes with diameters
ranging from 21 to 114.3mm and thicknesses ranging from 1.5 to
6.5mm. The equipment adopts the roller arrangement, the vertical
six rollers are fully active, the straightening precision is high,
and can meet the requirements of the relevant national standards on
the tube shape and straightness of the steel pipe.
II. Technical Features:
Automatic adjustment mode: The equipment adopts automatic working
mode. As long as the parameters of steel pipe diameter, wall
thickness and material are input on the touch screen, the Angle of
the roller and the position of the upper roll will automatically
reach the position, and it can work directly without manual
adjustment.
III. Equipment technical performance
1 | Pipe OD mm | Φ21~Φ114.3 | |
2 | Pipe Thickness mm | 1.5~6.5 | |
3 | Pipe Length mm | 4000-8000 | |
4 | Speed | 20m/min | |
5 | Material Grade | S235JR, S275JR, S355JR, | |
9 | The steel pipe is not allowed to be straightness before straightening | Total Pipe length *0.3% | |
10 | Ellipticity is allowed before steel pipe straightening | Pipe OD tolerance* 0.75% | |
11 | The steel pipe Non straightness After straighteness Less than | Total Pipe length *0.1% | |
12 | Non straightness of pipe end after straightening | ≤0.2% | |
13 | Surface request after straightening | No roll marking | |
14 | Straightener roller diameter mm | Φ260 | |
15 | Straightener roller length mm | 400 | |
16 | Straightener roller adjust degree | 30°~ 38° | |
17 | Motor Power | 22Kw×2 | |
18 | Straightener roller layout | 2-2-2 | All active |
IV. Machine Layout reference
V,Specification introduce:
The equipment is composed of upper frame assembly, lower frame
assembly, straightening roller assembly, column assembly,
caruniversal shaft assembly, transmission device, base, electric
control system and other parts.
The frame adopts welded box structure with good stiffness and
compact structure.
The straightening roller is made of Cr12 alloy steel, which is
surface quenched with high hardness and good wear resistance.
The transmission device adopts the non-standard cylindrical gear
reducer, the gear adopts the hard tooth surface, the transmission
precision is high, the service life is long, the two-speed motor
drive, the motor adopts the domestic famous brand motor, the
transmission is accurate. Speed control adopts imported frequency
converter, which can adjust the speed according to different
specifications.
VI,Straightener roller design features:
In order to ensure straight degrees and accuracy requirements, the
design of the pore type of this machine adopts the design idea of
"round-oval-circle". It uses high-intensity racks and
high-intensity, high-hardness rollers to force the steel pipe to in
the first pair of straight rollers of the first pair of straight
rollers. Keep it under the middle of a pair of straight rollers in
the middle, which changes from circular to oval; in the third -to
-straight roller, the steel pipe is forced to turn into a round
shape, which can completely eliminate the pipes in the forming and
welding process of the pipes and welding process. The residual
internal stress generated in the middle allows the steel pipes to
not produce elastic deformation after the straight machine, which
fundamentally eliminates the internal cause of bending, and ensures
the accuracy of the straightness. The design of the straight roller
is bilateral and the middle convex and concave roller body. This
roller can ensure that the surface of the steel pipe after the
correction does not produce any residual traces..
VII. Electronic control system:
Electrical system composition: 1 operating counter of electronic
control cabinets
The main driver system uses AC frequency frequency control, and has
no speed adjustment
The pulse encoder is used to measure the angle and position of the
straight roller
The main control PLC and the touch screen use Siemens products,
supporting Profinet
Optional:
Automatic control of adjustment for different diameter pipe:
Adjustment: Set the main parameters of the steel pipes on the touch
screen, such as the diameter, wall thickness, and material. You can
use the database to adjust the supporting straight parameter array
(angle and pressure), and the straight roller can be automatically
adjusted in place.
Data processing: Randomly provide a set of straight parameters; the
experience parameters of the user's production process can be
stored in the database for reference for future; the data
preservation volume is 1,000 groups.
Main supplier list of electrical outlets
Serial number outsourcing name manufacturer or brand name remarks
1 AC inverter Germany Rexroth
2 Touch screen Siemens
3 PLC Siemens
4 Electric components LG
5 Button Shanghai Ergong
VIII,Machine List:
No. | Device | Qty | Remark |
1 | Straight machine main device | 1 | |
2 | Transmission case | 2 | |
3 | Ground bolt | 1 | |
4 | Electrical contro system | 1 | |
5 | Front and exit roller | 1 |