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Operation theory of cold rolling mill with more than 2 rollers
As shown: Drive by the main motor, Via the reducer, Brace connecting Rod structure to drive rocker system (OABCD) to do swing movement, thus, the upper and lower connecting rods drive the nose sleeve and the roller Frame to make regular reciprocating straight movement along the rolling line. The difference between their reciprocating straight travel is the rolling travel, a period of reciprocating movement, roller No 3 rolls on slide NO 4 and the pass formed by the three roller is regulated by the slide curve to complete a change of “Big-small-big”. When the taper Die is maximum, the roller does not contact with the Shell 2. At this time, the shell rotates at a specified angle and pushes forward a specified Length by the feeding Structure. After that, the pass gradually becomes smaller, to the taper DIE is the smallest, complete the finished Size of wall thickness, Inner and Outer diameter. The continuous completion of such a cycle, to achieve the tube shell Rolling.
LD-160
No. | Description | Unit | Tube Cold Rolling Machine Model | |
LD-160 | ||||
1 | Hollow size | Outside diameter | mm | φ108～190 |
Wall thickness | mm | 4～13 | ||
Length | m | 2.2～5 | ||
2 | Tube size | Outside diameter | mm | φ100～180 |
Wall thickness | mm | 3～11 | ||
Length | m | ≤12 | ||
3 | Max. elongation ratio of rolling |
| It depends on the material | |
4 | Stroke rate of roller carriage | str./min. | 25～45 | |
5 | Stroke length of roller carriage | mm | 942 | |
6 | Length of hollow feed | mm | 2～10 | |
7 | Rotating angle of hollow during feed | Deg. | 45～75 | |
8 | Rotate-and-feed mechanism |
| Servos | |
9 | Method of loading/unloading |
| Mechanical | |
10 | Number of rollers |
| 5 | |
11 | Center height of hollow | mm | 850 | |
12 | Power of main motor | KW | 160 | |
The company profile
Jiangsu Yongteli Machinery Co., Ltd. is a national high-tech enterprise with over 40 years of experience in research, development, and manufacturing of cold rolled tube mills. At present, We had independently developed LG (two-roller) , LD (multi-roller) two series of more than 30 kinds of specifications of cold-rolling mill, to serve many non-ferrous, stainless steel, alloy steel, black and other fields of pipe enterprises.
The company is located in the beautiful and profound Jiangsu Huai'an hi-tech development zone, covering an area of more than 40,000 square meters, with modern production plant and advanced production processing and testing equipment. The company has been adhering to the market-oriented, science and technology-based, to meet customer needs as the goal, grasp the development trend of advanced technology in equipment manufacturing industry, and constantly increase scientific and technological input, constantly improve the product R&D Innovation system, and strive to be the leader of China's control equipment.
Operation theory of cold rolling mill with more than 2 rollers
As shown: Drive by the main motor, Via the reducer, Brace connecting Rod structure to drive rocker system (OABCD) to do swing movement, thus, the upper and lower connecting rods drive the nose sleeve and the roller Frame to make regular reciprocating straight movement along the rolling line. The difference between their reciprocating straight travel is the rolling travel, a period of reciprocating movement, roller No 3 rolls on slide NO 4 and the pass formed by the three roller is regulated by the slide curve to complete a change of “Big-small-big”. When the taper Die is maximum, the roller does not contact with the Shell 2. At this time, the shell rotates at a specified angle and pushes forward a specified Length by the feeding Structure. After that, the pass gradually becomes smaller, to the taper DIE is the smallest, complete the finished Size of wall thickness, Inner and Outer diameter. The continuous completion of such a cycle, to achieve the tube shell Rolling.
LD-160
No. | Description | Unit | Tube Cold Rolling Machine Model | |
LD-160 | ||||
1 | Hollow size | Outside diameter | mm | φ108～190 |
Wall thickness | mm | 4～13 | ||
Length | m | 2.2～5 | ||
2 | Tube size | Outside diameter | mm | φ100～180 |
Wall thickness | mm | 3～11 | ||
Length | m | ≤12 | ||
3 | Max. elongation ratio of rolling |
| It depends on the material | |
4 | Stroke rate of roller carriage | str./min. | 25～45 | |
5 | Stroke length of roller carriage | mm | 942 | |
6 | Length of hollow feed | mm | 2～10 | |
7 | Rotating angle of hollow during feed | Deg. | 45～75 | |
8 | Rotate-and-feed mechanism |
| Servos | |
9 | Method of loading/unloading |
| Mechanical | |
10 | Number of rollers |
| 5 | |
11 | Center height of hollow | mm | 850 | |
12 | Power of main motor | KW | 160 | |
The company profile
Jiangsu Yongteli Machinery Co., Ltd. is a national high-tech enterprise with over 40 years of experience in research, development, and manufacturing of cold rolled tube mills. At present, We had independently developed LG (two-roller) , LD (multi-roller) two series of more than 30 kinds of specifications of cold-rolling mill, to serve many non-ferrous, stainless steel, alloy steel, black and other fields of pipe enterprises.
The company is located in the beautiful and profound Jiangsu Huai'an hi-tech development zone, covering an area of more than 40,000 square meters, with modern production plant and advanced production processing and testing equipment. The company has been adhering to the market-oriented, science and technology-based, to meet customer needs as the goal, grasp the development trend of advanced technology in equipment manufacturing industry, and constantly increase scientific and technological input, constantly improve the product R&D Innovation system, and strive to be the leader of China's control equipment.
