CN112024612B - Hydraulic control casting and rolling control equipment and method for casting and rolling aluminum strip - Google Patents
Hydraulic control casting and rolling control equipment and method for casting and rolling aluminum strip Download PDFInfo
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- CN112024612B CN112024612B CN202010910328.2A CN202010910328A CN112024612B CN 112024612 B CN112024612 B CN 112024612B CN 202010910328 A CN202010910328 A CN 202010910328A CN 112024612 B CN112024612 B CN 112024612B
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- hydraulic cylinder
- casting
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- rolling
- roll
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- 238000005266 casting Methods 0.000 title claims abstract description 91
- 238000005096 rolling process Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 238000005058 metal casting Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the technical field of nonferrous metal casting and rolling production, and relates to hydraulic casting and rolling control equipment and method for casting and rolling an aluminum strip; the casting roller is locked in a determined plane by the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder, and the casting roller seam, the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder can work according to a determined mathematical relationship. Position sensors are respectively arranged in the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder; the casting roller and the bearing seat are respectively connected with the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder; the hydraulic control casting and rolling control equipment also comprises a frame, wherein the frame connects the equipment into a closed whole; the hydraulic system is provided with a hydraulic sensor and a pressure sensor. The invention can form flexible and controllable roll gaps between the casting rolls, improve the roll gap adjusting capability of the casting rolls, effectively improve the casting and rolling capability of the casting rolls, meet the efficient casting and rolling production and ensure the quality of the produced products.
Description
Technical Field
The invention belongs to the technical field of nonferrous metal casting and rolling production, and relates to hydraulic casting and rolling control equipment and method for casting and rolling an aluminum strip.
Background
The casting and rolling production process has become the common knowledge of modern industrial production due to the advantages of short flow, high efficiency, low energy consumption and the like. However, the industrial production of high-speed continuous casting and rolling is still not mature, the technology is still to be developed, a plurality of technical problems are still to be solved in the aspect of casting and rolling equipment, or the existing production technology is still problematic, especially the casting and rolling control device and the controlled casting and rolling method are still simplified, the control technology and the control means are still to be innovated, and the necessary requirement for the development of the future high-speed casting and rolling production technology is also provided. The existing casting and rolling control technology adopts a mechanical oblique mode and an oil cylinder preset mode, the mode needs to preset the opening degree according to the product specification before casting and rolling production, the supporting pretightening force of the oil cylinder is set in advance, and the adjustment and control cannot be carried out in the casting and rolling process, so that the mode has poor production flexibility and insufficient plate shape control capability, only thicker plate and strip can be produced by casting and rolling, and the mechanical control mode is not suitable for the requirements of the existing casting and rolling production on the development of the trend of thin band, ultra wide band and high strength. The more obvious the error of the plate shape is expressed due to the thinning of the plate strip in the actual casting and rolling production; the wider the width direction of the plate band is, the more difficult the control of the thickness unevenness in the width direction is; the inclination of the two ends of the high-strength strip needs to be adjusted in real time with larger force and dynamic state. The control capacity of the casting and rolling machine is thus a direct decision on the casting and rolling specifications of the casting and rolling machine and the quality of the product, wherein the hydraulic control equipment and method of the casting and rolling machine are important technical measures for improving the casting and rolling capacity of the casting and rolling machine and ensuring that the casting and rolling machine achieves high-quality strip production.
However, due to the commonly used mechanical tilting and hydro-cylinder preset mode at present, the method is only suitable for the production of low-speed, thick-specification, narrow-band and low-strength cast-rolled strips, and cannot be used for the production of high-speed, high-strength and ultra-wideband cast-rolled strips.
Disclosure of Invention
In view of the above, the invention aims to provide a hydraulic control casting and rolling control device and method for casting and rolling aluminum strips, which are used for solving the problems of low control precision, insufficient regulation and control capability, poor strip shape control and the like in the prior art so as to meet the requirements of the development of strip production technologies such as high speed, ultra-thin, ultra-wide, high strength and the like.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A hydraulic control casting and rolling method for casting and rolling aluminium strip is to lock the casting roller in a definite plane by a lifting hydraulic cylinder and a roller regulating hydraulic cylinder, and to make the casting roller seam and the lifting hydraulic cylinder and the roller regulating hydraulic cylinder work according to definite mathematical relation.
Optionally, the relationship between the movement of the lifting hydraulic cylinder and the movement of the roller adjusting hydraulic cylinder satisfies the following functional formula:
S1＝(H-W)-S2
Wherein:
h is the height of the machine base, mm;
W is the height of the roller system, mm;
s 1 is the stroke of the roller adjusting hydraulic cylinder, and the unit is mm;
-S 2 is the stroke of the lifting cylinder in mm.
Optionally, the mathematical relationship between the casting roll seam and the change in the lifting and dancer cylinders satisfies the following functional equation:
Wherein:
-H is the height of the machine base, The unit is mm;
W is the roll train height, W=k 0+k1 +a-D in mm;
s 1 is the stroke of the roller adjusting hydraulic cylinder, and the unit is mm;
S 2 is the stroke of the lifting hydraulic cylinder, and the unit is mm;
-H 0 is the initial height of the frame window in mm;
-b is the base height of the lifting hydraulic cylinder in mm;
-K 1 is the central height of the chock on the casting roll in mm;
-K 0 is the central height of the casting roll chock in mm;
-a is the basic height of the roll-adjusting hydraulic cylinder, in mm;
D is the diameter of the casting roll in mm;
s is the size of the roll gap of the casting roll in mm.
Optionally, when the roller is adjusted, the roller adjusting hydraulic cylinder is driven, and the lifting hydraulic cylinder is driven; during casting and rolling production, the lifting hydraulic cylinder is driven, and the roller adjusting hydraulic cylinder is followed.
The hydraulic control casting and rolling control equipment for casting and rolling the aluminum strip comprises a frame, a lifting hydraulic cylinder, a roller adjusting hydraulic cylinder and bearing blocks, wherein two casting rollers are respectively connected to the two bearing blocks; one end of the roll adjusting hydraulic cylinder is connected with one of the bearing seats, the other end of the roll adjusting hydraulic cylinder is connected with a casting roll corresponding to the other bearing seat, and the lifting hydraulic cylinder is fixed on the frame and connected with one side of one bearing seat away from the other bearing seat.
Optionally, the lifting device further comprises a lifting position sensor and a roller adjusting position sensor, wherein the lifting position sensor is installed on the lifting hydraulic cylinder, and the roller adjusting position sensor is installed on the roller adjusting hydraulic cylinder.
Optionally, the hydraulic servo valve is installed on the frame, and is connected with the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder respectively.
Optionally, the hydraulic servo valve further comprises a hydraulic sensor, and the hydraulic sensor is connected with the lifting hydraulic servo valve and/or the roll adjusting hydraulic servo valve.
Optionally, the hydraulic lifting device further comprises a pressure sensor, wherein the pressure sensor is arranged on the lifting hydraulic cylinder and is connected with the frame.
Optionally, the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder are servo hydraulic cylinders.
The invention has the beneficial effects that:
The lifting hydraulic cylinder and the roller adjusting hydraulic cylinder are used for connecting the rollers into an organic integral structure, the two hydraulic cylinders form organic closed loop double linkage, the control is flexible, a flexible and controllable roller gap is formed between the casting rollers, the opening degree of the casting rollers can be effectively controlled, the roller gap adaptability of the casting rollers is improved, a main and auxiliary control strategy is adopted, the control means are clear from time to time, the control object is accurate, the control precision is high, the control mode adopts servo closed loop control, the control is flexible and reliable, the plate shape control capability is high, the control capability of the casting rollers can be effectively improved, the casting and rolling production response speed is improved, the efficient casting and rolling production is met, and the product quality is ensured.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
Fig. 2 is a side view of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-2, the reference numerals in the drawings indicate: lifting hydraulic cylinder 1, frame 2, roll adjusting hydraulic cylinder 3, casting roll 4, bearing pedestal 5, roll adjusting position sensor 6, roll adjusting servo valve 7, hydraulic pressure sensor 8, lifting servo valve 9, lifting position sensor 10, and pressure sensor 11.
The embodiment comprises the following steps: lifting hydraulic cylinder 1, frame 2, roll adjusting hydraulic cylinder 3, casting roll 4, bearing pedestal 5, roll adjusting position sensor 6, roll adjusting servo valve 7, hydraulic pressure sensor 8, lifting servo valve 9, lifting position sensor 10, and pressure sensor 11. The lifting hydraulic cylinder 1 is connected with the lifting servo valve 9, the adjusting hydraulic cylinder 3 is connected with the adjusting servo valve 7 and respectively and independently forms a system, each system can independently move when not working, and forms an organic whole which is mutually related when in production, the two systems move according to a specific mathematical relation, and the lifting system and the adjusting system are respectively and independently interdependent; one end of the lifting hydraulic cylinder 1 is arranged on a bearing seat 5 of the upper casting roller, and the other end is arranged on the frame 2; one end of the adjusting hydraulic cylinder 3 is arranged on the bearing pedestal 5 of the lower casting roller, and the other end is connected with the bearing pedestal 5 of the upper casting roller; the casting roller 4 is arranged on the bearing pedestal 5, and the bearing pedestal 5 is arranged in the frame 2; the roll adjusting position sensor 6 is arranged on the adjusting hydraulic cylinder 3; a lifting position sensor 10 is mounted on the lifting hydraulic cylinder; the pressure sensor is mounted on the upper part of the frame 2. The lifting control pipeline and the roller adjusting control pipeline are servo closed-loop control pipelines. The frame 2 is an open type connecting frame and is used for respectively fixing the installation components.
In this embodiment, the adjusting servo valve 7 and the lifting servo valve 9 are respectively installed beside the frame and are respectively connected with the adjusting hydraulic cylinder 3 and the lifting hydraulic cylinder 1 to form a relatively independent pipeline control system; the hydraulic sensor 8 is arranged on the servo pipeline; the lifting hydraulic control system and the roller adjusting hydraulic control system form an organic control system, a main system and an auxiliary system are formed to move mutually, the movement between the two systems meets a specific mathematical rule, and the mathematical rule of the movement is as follows:
S1＝(H-W)-S2
Wherein:
h is the height of the machine base, mm;
W is the height of the roller system, mm;
s 1 is the stroke of the roller adjusting hydraulic cylinder, and the unit is mm;
S 2 is the stroke of the lifting hydraulic cylinder, and the unit is mm;
In this embodiment, the adjustment of the roll gap of the casting roll adopts a main and auxiliary follow-up adjustment strategy, which can effectively adapt to the dynamic adjustment of the roll gap, meets the control precision requirement of the casting strip, and the adjustment of the roll gap of the casting roll should meet the following relation:
Wherein:
-H is the height of the machine base, The unit is mm;
W is the roll train height, W=k 0+k1 +a-D in mm;
-H 0 is the initial height of the frame window in mm;
-b is the base height of the lifting hydraulic cylinder in mm;
-K 1 is the central height of the chock on the casting roll in mm;
-K 0 is the central height of the casting roll chock in mm;
-a is the basic height of the roll-adjusting hydraulic cylinder, in mm;
d is the diameter of the casting rolls in mm.
In this embodiment, the stand 2 can be mounted in any horizontal and vertical rotation, and has a stand conversion variable feature.
The invention adopts the main and auxiliary dynamic following adjustment control strategy, has accurate control object and quick dynamic response, can effectively improve the casting and rolling control capacity of the casting roller, and enhances the plate shape control precision of the casting roller, thereby effectively improving the casting and rolling production speed and the quality of the produced products. The novel hydraulic control casting and rolling control device and method for casting and rolling the aluminum strip can be applied to the requirements of key process equipment in high-speed roll casting and rolling production of high-strength aluminum alloy thin strips, and also can be applied to the requirements of process equipment in medium-low-speed thick strip roll casting and rolling production, and particularly can be applied to the requirements in high-speed roll casting and rolling production of high-strength aluminum alloy thin strips.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (5)
1. The hydraulic control casting and rolling control method for casting and rolling the aluminum strip is characterized in that a casting roller is locked in a determined plane through a lifting hydraulic cylinder and a roller adjusting hydraulic cylinder, and a casting roller seam, the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder can work according to a determined mathematical relationship;
the relation between the movement of the lifting hydraulic cylinder and the movement of the roller adjusting hydraulic cylinder meets the following functional formula:
S1＝(H-W)-S2
Wherein:
h is the height of the machine base, mm;
W is the height of the roller system, mm;
s 1 is the stroke of the roller adjusting hydraulic cylinder, and the unit is mm;
S 2 is the stroke of the lifting hydraulic cylinder, and the unit is mm;
the mathematical relationship between the cast-rolling roll gap and the change of the lifting hydraulic cylinder and the roll adjusting hydraulic cylinder meets the following functional formula:
Wherein:
-H is the height of the machine base, The unit is mm;
W is the roll train height, W=k 0+k1 +a-D in mm;
s 1 is the stroke of the roller adjusting hydraulic cylinder, and the unit is mm;
S 2 is the stroke of the lifting hydraulic cylinder, and the unit is mm;
-H 0 is the initial height of the frame window in mm;
-b is the base height of the lifting hydraulic cylinder in mm;
-K 1 is the central height of the chock on the casting roll in mm;
-K 0 is the central height of the casting roll chock in mm;
-a is the basic height of the roll-adjusting hydraulic cylinder, in mm;
D is the diameter of the casting roll in mm;
s is the size of the roll gap of the casting roll, and the unit is mm;
When the roller is regulated, the roller regulating hydraulic cylinder is driven, and the lifting hydraulic cylinder is driven; during casting and rolling production, the lifting hydraulic cylinder is driven, and the roller adjusting hydraulic cylinder is followed.
2. The device for operating the hydraulic control casting and rolling method based on the aluminum strip casting and rolling of claim 1 is characterized by comprising a frame, a lifting hydraulic cylinder, a roller adjusting hydraulic cylinder and bearing seats, wherein two casting rollers are respectively connected to the two bearing seats; one end of the roll adjusting hydraulic cylinder is connected with one of the bearing seats, the other end of the roll adjusting hydraulic cylinder is connected with a casting roll corresponding to the other bearing seat, and the lifting hydraulic cylinder is fixed on the frame and connected with one side of one bearing seat away from the other bearing seat; the lifting position sensor is arranged on the lifting hydraulic cylinder, and the roll adjusting position sensor is arranged on the roll adjusting hydraulic cylinder; the hydraulic servo valve is arranged on the frame and is respectively connected with the lifting hydraulic cylinder and the roller adjusting hydraulic cylinder.
3. The apparatus as claimed in claim 2, further comprising a hydraulic sensor connected to the lifting hydraulic servo valve and/or the roll-adjusting hydraulic servo valve.
4. The apparatus of claim 2, further comprising a pressure sensor mounted on the lift cylinder and coupled to the frame.
5. The apparatus as claimed in claim 2, wherein the lifting cylinder and the dancer cylinder are each servo cylinders.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010910328.2A CN112024612B (en) | 2020-09-02 | 2020-09-02 | Hydraulic control casting and rolling control equipment and method for casting and rolling aluminum strip |
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| CN202010910328.2A CN112024612B (en) | 2020-09-02 | 2020-09-02 | Hydraulic control casting and rolling control equipment and method for casting and rolling aluminum strip |
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| CN112024612A CN112024612A (en) | 2020-12-04 |
| CN112024612B true CN112024612B (en) | 2024-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112974544B (en) * | 2021-03-09 | 2022-04-15 | 燕山大学 | Dynamic adjusting device and method for torque of driven working roll of Y-shaped rolling mill |
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| JPH08309441A (en) * | 1995-05-23 | 1996-11-26 | Showa Electric Wire & Cable Co Ltd | Tube forming device |
| JP2000042702A (en) * | 1998-07-31 | 2000-02-15 | Sumitomo Metal Ind Ltd | Method for changing thickness of cast slab |
| CN103182491A (en) * | 2011-12-30 | 2013-07-03 | 宝山钢铁股份有限公司 | Control method and device for thin-strip continuous casting free loop |
| CN103510085A (en) * | 2013-10-09 | 2014-01-15 | 鞍钢股份有限公司 | Coating roller position control method capable of reducing consumption of passivation solution |
| CN212703694U (en) * | 2020-09-02 | 2021-03-16 | 中冶赛迪工程技术股份有限公司 | Aluminum strip casting and rolling hydraulic casting and rolling control equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506398B1 (en) * | 2008-06-18 | 2009-09-15 | Siemens Vai Metals Tech Gmbh | METHOD AND DEVICE FOR SUPPRESSING VIBRATIONS IN A ROLLING SYSTEM |
| CN108290190B (en) * | 2016-11-07 | 2019-08-20 | 普锐特冶金技术日本有限公司 | The method of adjustment of roller mill and roller mill |
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2020
- 2020-09-02 CN CN202010910328.2A patent/CN112024612B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08309441A (en) * | 1995-05-23 | 1996-11-26 | Showa Electric Wire & Cable Co Ltd | Tube forming device |
| JP2000042702A (en) * | 1998-07-31 | 2000-02-15 | Sumitomo Metal Ind Ltd | Method for changing thickness of cast slab |
| CN103182491A (en) * | 2011-12-30 | 2013-07-03 | 宝山钢铁股份有限公司 | Control method and device for thin-strip continuous casting free loop |
| CN103510085A (en) * | 2013-10-09 | 2014-01-15 | 鞍钢股份有限公司 | Coating roller position control method capable of reducing consumption of passivation solution |
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Non-Patent Citations (1)
| Title |
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