Rewinding Line
Tension rolls for rewinding unit will encounter the problem strip skidding during the actual usage which can lead to the production barrier like strip deviation, at the meantime, it can affect the security of production equipment. With the pressure roller, tension rolls for rewinding unit can prevent the strip from slipping on the surface of rolls and get initial tension.
The Features of BOYA Rewinding Line
The force increase of tension roller unit was achieved by wrapping effect of each tension roll.
In condition of the rewinding line wrapped around a roll was affected by a certain initial tension, the friction force between them reached a maximum number and the transfer power outreached the maximum friction, there will be skidding between the strip of recoiling lineand the roll surface.
Types of Rewinding Line
Tension Leveling Line
Tension Leveling and Trimming Line
Side Trimming Line
Inspection Line
Working Principle of Rewinding Line
01
The running speed also can affect the total friction between the strip and the roll surface. When the strip runs under a higher speed, the positive pressure of the strip on the roll surface is lower, and the gas passing between strip and roll surface in the entrance cannot be exited quickly, which can continue to accumulate with the increase of speed. Therefore, on the one hand, the actual wrap angle between the strip and the roll surface is reduced, on the other hand, the coefficient of friction between them is also diminished. Finally, all of them results in the decrease of the whole friction, which can be represent apparently under the poor incoming plate shape. In conditions of the same initial tension of tension roller unit, the entrance roller unit with a small force has a higher slip probability than the exit one with a higher force.
02
The slipping of any tension roll unit will cause scratches to the surface of the strip. In the coil processing line, the light damage can degrade product quality, while the heavy one will scrap the strip. So the slipping of the tension roll unit is extremely harmful to production.
03
At the same time, the slipping of any tension roll unit will have a direct effect on itself, which can make the roller surface smoother and smoother. The friction coefficient diminished rapidly, so we need to regrind the roll surface and the roll usage period will be shorted. In addition, the skidding of tension roller unit can cause motor output torque to fluctuate, impact the transfer decelerator, make gear failure and defect the decelerator.
04
In order to prevent slipping, the diameter of tension roller unit is selected based on the principle that no plastic deformation occurs after the strip passed through the tension roller. The max thickness of strip is the main factor to determine the max diameter of tension roller. The phenomenon that the slipping probability of cold-rolled thin strip steel is significantly increased under the large tension roll diameter. There should be a limit to the adaptation scope of strip, the diameter of tension roller is not the bigger the better. In order to add the friction coefficient as soon as possible, we need to increase the roughness of the roll surface.
05
Although we cannot eliminate the slipping of tension roll through the way of improve the electrical control of tension roller unit, we can provide the reasonable and perfect electrical control method which can benefit to diminish the degree of slippage. Therefore, we can decrease the wear of tension roll, and it is helpful for us to find and correct the slipping.
As one of the most professional fine blanking press manufacturers, we provide Steel plant finishing line, scrap chopper,precision leveling equipmentand etc. Want to know more, contact us.
Send product request
Other supplier products
 |
Rewinding Line | Rewinding/ recoiling lines will encounter the problem of strip skidding during the actual usage which can lead to production barriers like strip de... |
 |
Precision Leveler | BOYA multi-roll leveler is the core equipment of finishing process in metallurgical hot and cold rolling mill. By repeatedly bending and convex str... |
 |
Drum Fly Shear for Cold Rolling Mill | Drum Fly Shearfor Cold Rolling Mill Drum flying shears are used at the exit of various continuous cold rolling mills for strips to realize dynamic... |
 |
Tension Leveler Unit | BOYA Tension leveleris the core equipment to leveling and shaping strip in cold rolling mill various process lines such as pickling line/pickling a... |
 |
Fine Blanking Line | Based on BOYA's excellent processing and manufacturing capacity and rich series of products, we have a complete set of fine blanking equipment for ... |
Same products
 |
High-Speed SMD Carrier Tape Manufacturing Machine of XYZ Machine | Seller: xyztapereel | Take control of your SMD packaging supply chain with the CTF-01 Carrier Tape Forming Machine. Thi... |
 |
High-Speed SMD Carrier Tape Manufacturing Machine of XYZ Machine | Seller: xyztapereel | Take control of your SMD packaging supply chain with the CTF-01 Carrier Tape Forming Machine. Thi... |
 |
High Precision Machining Custom Chassis CNC Machining Aluminum Alloy Parts | Seller: Ideal Vowin Industry Tech ltd | we are manufacturer specialized in customized fabrication service. we provide one-stop service... |
 |
China High Quality Sliding Table Saw For Woodworking | Seller: QINGDAO UNITED ASIA INDUSTRY CO.,LTD | Model No:UA3200SDimension of sliding table saw 3200*375mmGross cut capacity 3200mmWidth of cut be... |
 |
Concrete Cutting Diamond Wire Saw Rope | Seller: Xiamen ChinShine Industry and Trade Corporation | Concrete cutting diamond wire saw rope has become an important tool in the field of concrete cutt... |
