CN219616381U - Roller device for rolling magnesium alloy thin strip - Google Patents
Roller device for rolling magnesium alloy thin strip Download PDFInfo
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- CN219616381U CN219616381U CN202321064238.1U CN202321064238U CN219616381U CN 219616381 U CN219616381 U CN 219616381U CN 202321064238 U CN202321064238 U CN 202321064238U CN 219616381 U CN219616381 U CN 219616381U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses a roller device for rolling magnesium alloy thin strips, which comprises an upper support working roller, a lower support working roller, an upper working roller, a lower working roller, an uncoiler and a coiling machine which are respectively driven by motors, and further comprises a front follow-up steering roller and a rear follow-up steering roller which are all electromagnetic heating rollers, wherein the center point of a connecting line between the axle center of the upper working roller and the axle center of the lower working roller is an origin, and the upper support working roller and the lower support working roller are symmetrical about the origin. The roller device for rolling the magnesium alloy thin strip is compact in structure, realizes one-time uncoiling and coiling processes of the magnesium alloy thin strip by a single-frame production line, can roll for 3 passes, can reduce heating and temperature supplementing times, adopts a four-drive asymmetric roller system body structure, can meet special requirements of special lattice structures of the magnesium alloy thin strip on rolling deformation, is favorable for reducing anisotropy of products, and further improves product performance.
Description
Technical Field
The utility model relates to the technical field of metal plate and strip production equipment in the metallurgical industry, in particular to a roller device for rolling a magnesium alloy strip.
Background
The magnesium alloy plate has the advantages of light weight, high specific strength, good vibration damping performance, high shielding performance, good heat dissipation performance, affinity to human bodies and the like, and is widely applied to the fields of national defense and military industry, aerospace, equipment manufacturing, electronic product shells and the like. At present, along with the continuous change of market demands, magnesium alloy plates are developed in the directions of ultra-thin, wide and high surface quality and the like. However, the magnesium alloy has a special lattice structure, so that the slippage system is less at normal temperature, the cold rolling is easy to crack, the production efficiency is low, the yield is low, and the anisotropy is serious. In cold rolling, the magnesium alloy strip blank is heated to 120-230 ℃ to finish production with small pass reduction (generally 5-15%) and a plurality of passes.
Compared with the traditional block sheet type production mode, the belt type process has the advantages of strong continuous production degree, high consistency of product specification and performance, high production efficiency and yield, suitability for large-scale batch production and the like. Therefore, at present, magnesium alloy production enterprises begin to adopt cold rolling mills and belt method processes thereof which are mainly applied to the production field of metal strips such as steel strips, copper strips, aluminum strips and the like in the past for producing magnesium alloy thin strips.
Because the magnesium alloy strip is difficult to deform metal with a special close-packed hexagonal lattice structure (other metals such as steel, copper, aluminum and the like are metals with body-centered cubic lattice structures which are easy to deform), the rolling process requirement is characterized by short flow, less rolling process, uniform temperature, oxidation prevention and the like, and magnesium alloy blanks in a hot state should be reduced when in rolling to contact cold-state parts of production equipment so as to avoid non-uniformity of temperature and deformation, and meanwhile, the anisotropy caused by accumulated deformation generated in the rolling process should be reduced.
However, the conventional belt-process cold rolling mill roller system structure applied to the production configuration modes of metal strips such as steel, copper, aluminum and the like and the rolling mode (see the attached drawing 2 of the specification) are difficult to meet the production requirement of magnesium alloy strips, and the main reasons are as follows: 1. the single-stand cold rolling mill can realize rolling of 1 pass only in the process of uncoiling and coiling once, the required rolling range is more, the temperature is reduced quickly, and the repeated heating and temperature compensation are required during uncoiling and coiling for many times; 2. the conventional roller system adopts a completely symmetrical upper and lower structure and a single supporting roller transmission or a single working roller transmission mode, so that the deformation of the upper and lower sides of the magnesium alloy strip blank is completely symmetrical under the rolling pressure of the working roller, the accumulated anisotropy is serious, and the performance of the product is further reduced.
Accordingly, the present utility model provides a roll apparatus for rolling magnesium alloy strips, which solves the above-mentioned problems.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides a roller device for rolling a magnesium alloy thin strip, which has a compact structure, realizes 3-pass rolling in one uncoiling and coiling process of the magnesium alloy thin strip by a single-frame production line, can reduce heating and temperature supplementing times, and can meet the special requirement of a special lattice structure of the magnesium alloy thin strip on rolling deformation after adopting a four-drive asymmetric roller system body structure and eccentrically configuring a roller system, thereby being beneficial to reducing the anisotropy of products, further improving the product performance and effectively solving the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the roller device for rolling magnesium alloy thin strip comprises an upper supporting working roller, a lower supporting working roller, an upper working roller, a lower working roller, an uncoiler and a coiling machine which are respectively driven by motors independently, and further comprises a front follow-up steering roller and a rear follow-up steering roller which are electromagnetic heating rollers, wherein the central point of a connecting line between the axle center of the upper working roller and the axle center of the lower working roller is an origin, the upper supporting working roller and the lower supporting working roller are in central symmetry about the origin, and the front follow-up steering roller and the rear follow-up steering roller are in central symmetry about the origin.
An upper roll gap is formed between the upper support working roll and the upper working roll, a lower roll gap is formed between the lower support working roll and the lower working roll, a central roll gap is formed between the upper working roll and the lower working roll, and a magnesium alloy thin strip on the uncoiler in the rolling process sequentially passes through the upper roll gap, the rear follow-up steering roll, the central roll gap, the front follow-up steering roll, the lower roll gap and finally is wound on the coiling machine.
As a preferable technical scheme of the utility model, the front follow-up steering roller is positioned between the lower working roller and the uncoiler, and the central elevation and the roller radius of the front follow-up steering roller are the same as the central elevation and the working roller radius r of the lower working roller, so as to realize heating of the magnesium alloy strip at 90-300 ℃ and 180-degree wrap angle and change the running direction of the last pass of the strip into 180-degree deflection.
As a preferable technical scheme of the utility model, the rear follow-up steering roller is positioned in front of the upper working roller and the coiling machine, and the central elevation and the roller radius of the rear follow-up steering roller are the same as the central elevation and the working roller radius r of the upper working roller, so as to realize heating of the magnesium alloy thin strip at 90-300 ℃ and 180-degree wrap angle and change the running direction of the last pass of the strip into 180-degree deflection.
As a preferable technical scheme of the utility model, the relation between the radius R of the upper support working roller and the radius R of the lower support working roller and the radius R of the upper working roller and the radius R of the lower working roller is as follows: r=1.8-2.2R.
As a preferable technical scheme of the utility model, the upper support working roll is eccentric to the front side of the uncoiler along the vertical central line of the upper working roll and the lower working roll by a distance of 10-50mm, so that the upper support working roll, the lower support working roll, the upper working roll and the lower working roll form a four-drive central symmetrical roll system body structure.
As a preferable technical scheme of the utility model, an organic front deflection guide roller and a rear deflection guide roller are respectively arranged between the uncoiler and the front follow-up steering roller and between the coiling machine and the rear follow-up steering roller, the front deflection guide roller is used for deflecting the magnesium alloy thin strip between the uncoiler and the upper roll gap in a wrap angle and in a direction, the rear deflection guide roller is used for deflecting the magnesium alloy thin strip between the lower roll gap and the coiling machine in a wrap angle and in a direction, and the central elevation of the front deflection guide roller and the rear deflection guide roller is the same as the elevation of a rolling line of the central roll gap.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the roller device for rolling the magnesium alloy thin strip, disclosed by the utility model, 3-pass rolling can be performed in one uncoiling and coiling process of the magnesium alloy thin strip by using a single-frame production line, the production efficiency is improved, the uniformity and consistency of temperature and deformation in the production process of the magnesium alloy thin strip are ensured, the traditional 1-time pressing deformation force is only improved to 3 times of pressing deformation by pressing deformation for 1 time, the energy consumption such as electricity consumption and the like is greatly reduced, and the production cost is reduced.
1. The roller device for rolling the magnesium alloy thin strip comprises an upper supporting working roller, a lower supporting working roller, wherein the upper working roller and the lower working roller are both transmission driving rollers, and meanwhile, the upper supporting working roller and the lower supporting working roller are eccentric at a certain distance to the front and the rear of the machine respectively, so that the special requirement of a special lattice structure of the magnesium alloy thin strip on rolling deformation is met, and anisotropy of products is reduced.
1. The roller device for rolling the magnesium alloy thin strip has a compact structure, realizes 3-pass rolling in one uncoiling and coiling process of the magnesium alloy thin strip by a single-frame production line, can reduce heating and temperature supplementing times, and can meet special requirements of special lattice structures of the magnesium alloy thin strip on rolling deformation after the roller system is eccentrically configured by adopting a four-drive asymmetric roller system body structure, thereby being beneficial to reducing anisotropy of products and further improving product performance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic view of a conventional cold rolling mill roll train.
In the figure: the device comprises an upper supporting working roller 1, a lower supporting working roller 2, an upper working roller 3, a lower working roller 4, a front follow-up steering roller 5, a rear follow-up steering roller 6, a front deflection roller 7, a rear deflection roller 8, an uncoiler 9 and a coiling machine 10.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the roller device for rolling the magnesium alloy thin strip comprises an upper supporting working roller 1, a lower supporting working roller 2, an upper working roller 3, a lower working roller 4, an uncoiler 9 and a coiling machine 10 which are respectively driven by motors, and further comprises a front follow-up steering roller 5 and a rear follow-up steering roller 6 which are all electromagnetic heating rollers, wherein the center point of a connecting line between the axis of the upper working roller 3 and the axis of the lower working roller 4 is an origin, the upper supporting working roller 1 and the lower supporting working roller 2 are in central symmetry about the origin, the front follow-up steering roller 5 and the rear follow-up steering roller 6 are in central symmetry about the origin, the roller of the whole roller system comprises the upper supporting working roller 1, the lower supporting working roller 2, the upper working roller 3 and the lower working roller 4 are all transmission driving rollers, and meanwhile, the lower supporting working roller 2 is eccentric for a certain distance to the front and the rear of the machine respectively, thereby meeting the special requirement of the special lattice structure of the magnesium alloy thin strip on rolling deformation and being beneficial to reducing the anisotropism of products.
An upper roll gap is formed between the upper support working roll 1 and the upper working roll 3, a lower roll gap is formed between the lower support working roll 2 and the lower working roll 4, a central roll gap is formed between the upper working roll 3 and the lower working roll 4, and a magnesium alloy thin strip on an uncoiler 9 sequentially passes through the upper roll gap, a rear follow-up steering roll 6, the central roll gap, a front follow-up steering roll 5 and the lower roll gap in the rolling process and is finally wound on a coiling machine 10, so that one uncoiling and coiling process of the magnesium alloy thin strip can be performed for 3 passes through a single-frame production line, the uniform consistency of temperature and deformation in the production process of the magnesium alloy thin strip is ensured while the production efficiency is improved, the traditional 1-time reduction deformation force can only be increased to 3 times by reduction deformation, the energy consumption such as electricity consumption and the like is greatly reduced, and the production cost is reduced.
Further, the front follow-up steering roller 5 is located between the lower working roller 4 and the uncoiler 9, and the central elevation and the roller radius of the front follow-up steering roller 5 are the same as the central elevation and the working roller radius r of the lower working roller 4, so that the heating of the magnesium alloy thin strip at 90-300 ℃ and the wrap angle of 180 DEG are realized, and the running direction of the last pass of the strip is changed into deflection of 180 deg.
Further, the machine-rear follow-up steering roller 6 is located before the upper working roller 3 and the coiling machine 10, and the center elevation and the roller radius of the machine-rear follow-up steering roller 6 are the same as the center elevation and the working roller radius r of the upper working roller 3, so that heating of 90-300 ℃ and 180-degree wrap angle of a magnesium alloy thin strip are realized, the running direction of a last pass of the strip is changed into 180-degree deflection, the magnesium alloy thin strip is heated to the process rolling temperature while being subjected to wrap angle steering by the machine-front follow-up steering roller 5 and the machine-rear follow-up steering roller 6, and the machine-front follow-up steering roller 5 and the machine-rear follow-up steering roller 6 with electromagnetic heating function only carry out heating and temperature compensation and wrap angle conversion on the magnesium alloy thin strip, and carry out 180-degree running direction conversion.
Further, the relationship between the radius R of the upper and lower support work rolls 1 and 2, and the radius R of the upper and lower work rolls 3 and 4 is: r=1.8-2.2R.
Further, the upper support working roll 1 is eccentric to the front side of the uncoiler 9 along the vertical central line of the upper working roll 3 and the lower working roll 4 by a distance of 10-50mm, so that the upper support working roll 1, the lower support working roll 2, the upper working roll 3 and the lower working roll 4 form a four-drive central symmetrical roll system body structure, the upper support working roll 1 and the lower support working roll 2 are eccentric to the front side and the rear side of the uncoiler by a certain distance respectively, the special requirement of a special lattice structure of a magnesium alloy thin strip on rolling deformation is met, and the anisotropy of products is reduced.
Further, an organic front deflection guide roller 7 and a rear deflection guide roller 8 are respectively arranged between the uncoiler 9 and the front follow-up steering roller 5 and between the coiling machine 10 and the rear follow-up steering roller 6, the front deflection guide roller 7 is used for deflecting the magnesium alloy thin strip between the uncoiler 9 and the upper roller gap in a wrap angle and direction, the rear deflection guide roller 8 is used for deflecting the magnesium alloy thin strip between the lower roller gap and the coiling machine 10 in a wrap angle and direction, and the central elevation of the front deflection guide roller 7 and the rear deflection guide roller 8 is the same as the rolling line elevation of the central roller gap.
When in use:
as shown in fig. 1, the magnesium alloy strip is rolled in 3 passes in a single rolling process as follows:
1. the magnesium alloy thin strip is guided to the position between the upper supporting working roll 1 and the upper working roll 3 from the uncoiler 9 under the action of the pre-machine deflection guide roll 7 to finish the 1 st pass rolling;
the first pass is that the upper supporting working roller 1 rotates anticlockwise, and the upper working roller 3 rotates clockwise;
2. then guided between the upper working roll 3 and the lower working roll 4 to finish the rolling of the 2 nd pass under the wrap angle and 180 DEG steering action of the rear follow-up steering roll 6;
the 2 nd pass is that the upper working roller 3 rotates clockwise, the lower working roller 4 rotates anticlockwise
3. Then guided between the lower working roll 4 and the lower supporting working roll 2 to finish the 3 rd pass rolling under the wrap angle and 180 DEG steering action of the front follow-up steering roll 5;
the 3 rd pass is that the lower working roll 4 rotates anticlockwise, and the lower supporting working roll 2 rotates clockwise
4. Finally, the magnesium alloy thin strip is guided to a coiling machine 10 under the action of a bias guide roller 8 after the coiling machine, and then the production of 3 passes in a single rolling process is completed.
The utility model has compact structure, realizes the rolling of 3 passes by one uncoiling and coiling process of the magnesium alloy thin strip by a single-frame production line, can reduce the heating and temperature supplementing times, and simultaneously, can meet the special requirement of special lattice structure of the magnesium alloy thin strip on rolling deformation after adopting a four-drive asymmetric roller system body structure and eccentrically configuring the roller system, thereby being beneficial to reducing the anisotropy of products and further improving the product performance.
The non-disclosed parts of the utility model are all prior art, and the specific structure, materials and working principle thereof are not described in detail. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a roll device of rolling magnesium alloy thin strip, includes upper support work roll (1), lower support work roll (2), upper work roll (3), lower work roll (4), decoiler (9) and coiler (10) that are driven by the motor alone respectively, its characterized in that: the machine comprises a machine front follow-up steering roller (5) and a machine rear follow-up steering roller (6), wherein the machine front follow-up steering roller (5) and the machine rear follow-up steering roller (6) are electromagnetic heating rollers, a central point of a connecting line between the axle center of the upper working roller (3) and the axle center of the lower working roller (4) is an origin, the upper support working roller (1) and the lower support working roller (2) are in central symmetry about the origin, and the machine front follow-up steering roller (5) and the machine rear follow-up steering roller (6) are in central symmetry about the origin;
an upper roll gap is formed between the upper supporting working roll (1) and the upper working roll (3), a lower roll gap is formed between the lower supporting working roll (2) and the lower working roll (4), a central roll gap is formed between the upper working roll (3) and the lower working roll (4), and a magnesium alloy thin strip on an uncoiler (9) in the rolling process sequentially passes through the upper roll gap, a machine rear follow-up steering roll (6), the central roll gap, a machine front follow-up steering roll (5), the lower roll gap and finally winds on a coiling machine (10).
2. The roll apparatus for rolling a magnesium alloy strip according to claim 1, wherein: the front follow-up steering roller (5) is positioned between the lower working roller (4) and the uncoiler (9), and the center elevation and the roller radius of the front follow-up steering roller (5) are the same as the center elevation and the working roller radius r of the lower working roller (4), so that the magnesium alloy thin strip is heated at 90-300 ℃ and a wrap angle of 180 degrees, and the running direction of the last pass of the strip is changed into deflection of 180 degrees.
3. The roll apparatus for rolling a magnesium alloy strip according to claim 1, wherein: the machine rear follow-up steering roller (6) is positioned in front of the upper working roller (3) and the coiling machine (10), and the center elevation and the roller radius of the machine rear follow-up steering roller (6) are the same as the center elevation and the working roller radius r of the upper working roller (3), so that the magnesium alloy thin strip is heated at 90-300 ℃ and a wrap angle of 180 degrees, and the running direction of the last pass of the strip is changed into deflection of 180 degrees.
4. The roll apparatus for rolling a magnesium alloy strip according to claim 1, wherein: the relation between the radius R of the upper support working roller (1) and the lower support working roller (2) and the radius R of the upper working roller (3) and the lower working roller (4) is as follows: r=1.8-2.2R.
5. The roll apparatus for rolling a magnesium alloy strip according to claim 1, wherein: the upper support working roll (1) is eccentric to the front side of the uncoiler (9) along the vertical central line of the upper working roll (3) and the lower working roll (4) by a distance of 10-50mm, so that the upper support working roll (1), the lower support working roll (2), the upper working roll (3) and the lower working roll (4) form a four-drive central symmetrical roll system body structure.
6. The roll apparatus for rolling a magnesium alloy strip according to claim 1, wherein: the magnesium alloy strip rolling machine is characterized in that an organic front deflection guide roller (7) and a rear deflection guide roller (8) are respectively arranged between the uncoiler (9) and the front follow-up steering roller (5) and between the coiling machine (10) and the rear follow-up steering roller (6), the front deflection guide roller (7) is used for carrying out wrap angle and direction deflection on the magnesium alloy strip between the uncoiler (9) and the upper roll gap, the rear deflection guide roller (8) is used for carrying out wrap angle and direction deflection on the magnesium alloy strip between the lower roll gap and the coiling machine (10), and the central elevation of the front deflection guide roller (7) and the rear deflection guide roller (8) is identical to the rolling line elevation of the central roll gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321064238.1U CN219616381U (en) | 2023-05-06 | 2023-05-06 | Roller device for rolling magnesium alloy thin strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321064238.1U CN219616381U (en) | 2023-05-06 | 2023-05-06 | Roller device for rolling magnesium alloy thin strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219616381U true CN219616381U (en) | 2023-09-01 |
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ID=87794764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321064238.1U Active CN219616381U (en) | 2023-05-06 | 2023-05-06 | Roller device for rolling magnesium alloy thin strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219616381U (en) |
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2023
- 2023-05-06 CN CN202321064238.1U patent/CN219616381U/en active Active
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