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Operation theory of cold rolling mill with two rollers for seamless tubes. .
As shown: the power from the main motor through the pulley deceleration drive M 3, M 2, by Brace connecting Rod structure drive frame M 1(equipped with two roller Ring Die) for making force and back running on the beeline. In one cycle, when the Machine Head is near the limit position (Location A) , The taper die from small to big, Via the rotation and feeding structure . the shell will be Rotate an Angle by mandrel working, the shell moves forward a distance. The pass shapes of the cold-rolled tube formed by two rollers and mandrel change from large to small (forward stroke) or from small to large (reverse stroke) ,Making the Shell rolled and sized continuously. This Cycle rolling is the process of producing shell into finished tubes.
LG-150-H
No. | Description | Unit | Tube Cold Rolling Machine Model | |
LG-150-H | ||||
1 | Hollow size | Outside diameter | mm | Φ100～200 |
Wall thickness | mm | 6～25 | ||
Length | m | 3～6 | ||
2 | Tube size | Outside diameter | mm | φ85～180 |
Wall thickness | mm | 4～22 | ||
Length | m | ≤20 | ||
3 | Max. elongation ratio of rolling |
| It depends on the material | |
4 | Max. nominal rolling force | t | 650 | |
5 | Stroke rate of roller carriage | str./min. | 30～50 | |
6 | Stroke length of roller carriage | mm | 1243 | |
7 | Length of hollow feed | mm | 2～12 | |
8 | Rotating angle of hollow during feed | Deg. | 45～75 | |
9 | Rotate-and-feed mechanism | Servos Or Direct current | ||
10 | Dia. of roller | mm | φ620 | |
11 | PCD of gear driving roller | mm | Φ496，φ512，φ528，φ544 | |
12 | Length of connecting rod | mm | 4000 | |
13 | Radius of crank | mm | 620 | |
14 | Offset distance between crank and slider | mm | 290 | |
15 | Center height of hollow | mm | 1000 | |
16 | Total transmission ratio |
| 12 | |
17 | Power of main motor | KW | 400 | |
Operation theory of cold rolling mill with two rollers for seamless tubes. .
As shown: the power from the main motor through the pulley deceleration drive M 3, M 2, by Brace connecting Rod structure drive frame M 1(equipped with two roller Ring Die) for making force and back running on the beeline. In one cycle, when the Machine Head is near the limit position (Location A) , The taper die from small to big, Via the rotation and feeding structure . the shell will be Rotate an Angle by mandrel working, the shell moves forward a distance. The pass shapes of the cold-rolled tube formed by two rollers and mandrel change from large to small (forward stroke) or from small to large (reverse stroke) ,Making the Shell rolled and sized continuously. This Cycle rolling is the process of producing shell into finished tubes.
LG-150-H
No. | Description | Unit | Tube Cold Rolling Machine Model | |
LG-150-H | ||||
1 | Hollow size | Outside diameter | mm | Φ100～200 |
Wall thickness | mm | 6～25 | ||
Length | m | 3～6 | ||
2 | Tube size | Outside diameter | mm | φ85～180 |
Wall thickness | mm | 4～22 | ||
Length | m | ≤20 | ||
3 | Max. elongation ratio of rolling |
| It depends on the material | |
4 | Max. nominal rolling force | t | 650 | |
5 | Stroke rate of roller carriage | str./min. | 30～50 | |
6 | Stroke length of roller carriage | mm | 1243 | |
7 | Length of hollow feed | mm | 2～12 | |
8 | Rotating angle of hollow during feed | Deg. | 45～75 | |
9 | Rotate-and-feed mechanism | Servos Or Direct current | ||
10 | Dia. of roller | mm | φ620 | |
11 | PCD of gear driving roller | mm | Φ496，φ512，φ528，φ544 | |
12 | Length of connecting rod | mm | 4000 | |
13 | Radius of crank | mm | 620 | |
14 | Offset distance between crank and slider | mm | 290 | |
15 | Center height of hollow | mm | 1000 | |
16 | Total transmission ratio |
| 12 | |
17 | Power of main motor | KW | 400 | |
