A configuration method and device for hot rolling multi-roller

Abstract

The present application relates to the field of hot rolling automatic control technology, and discloses a configuration method and device for hot rolling multi-roller type. The method comprises: obtaining multiple rollers and identifying the roller type codes corresponding to the multiple rollers; according to the roller type codes corresponding to the multiple rollers, listing the multiple rollers in multiple roller shifting strategies; calculating the roller shifting step length corresponding to the rollers in each roller shifting strategy; and controlling the rollers in the corresponding roller shifting strategy to shift the rollers according to the roller shifting step length. The present application realizes the small convexity control requirements of different products, realizes the technical application of ultra-long rolling mileage with one-time roller change, and significantly improves the product plate shape control and production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of hot rolling automatic control, and in particular, to a configuration method and device for a hot rolling multi-roller. Background Art

[0002] As the demand for hot-rolled products' plate quality continues to increase, efficient production of high-quality products is the goal of hot-rolled plate shape control. The basis of hot-rolled plate shape control is the roll shape and its corresponding automatic control technology.

[0003] In order to achieve this goal, it is necessary to design different roll shapes according to the quality requirements of different products and different rolling process requirements, and through the corresponding roll shifting technology, the convexity control accuracy of the product and the rolling mileage can be improved. Summary of the invention

[0004] The purpose of the present application is to provide a configuration method and device for a hot rolling multi-roller, thereby improving the convexity control accuracy and rolling mileage.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0006] According to one aspect of an embodiment of the present application, a method for configuring a hot-rolled multi-roller type is provided, comprising: acquiring a plurality of rolls and identifying roll type codes corresponding to the plurality of rolls; listing the plurality of rolls in a plurality of roll shifting strategies according to the roll type codes corresponding to the plurality of rolls; calculating a roll shifting step length corresponding to the rolls in each roll shifting strategy; and controlling the rolls in the corresponding roll shifting strategy to shift the rolls according to the roll shifting step length.

[0007] According to some embodiments of the present application, before acquiring multiple rollers and identifying roller type codes corresponding to the multiple rollers, it also includes: acquiring a roller, determining a roller type corresponding to one of the roller type codes based on the roller, and grinding the roller into the roller type corresponding to the roller type code.

[0008] According to some embodiments of the present application, the roller type code includes 10 different roller type codes, and the 10 different roller type codes are divided into 3 different roller shifting strategies.

[0009] According to some embodiments of the present application, the roller shifting strategy includes L-shape roller type roller shifting step length calculation, and the L-shape roller type roller shifting step length calculation includes: roller shifting step length = roller shifting coefficient × (wear amount of the previous steel roller - wear amount of the current steel roller).

[0010] According to some embodiments of the present application, the roll shifting strategy includes a parabolic roll shifting step length calculation, and the parabolic roll shifting step length calculation includes: roll shifting step length = a fixed roll shifting step length calculated according to the rolling number.

[0011] According to some embodiments of the present application, the roll shifting strategy includes multiple curve roll type roll shifting step length calculations, and the multiple curve roll type roll shifting step length calculations include: roll shifting step length = roll shifting step length calculated based on strip convexity.

[0012] According to one aspect of an embodiment of the present application, a hot rolling multi-roller configuration device is provided, the device comprising: a code recognition module, used to acquire a plurality of rollers and identify roller type codes corresponding to the plurality of rollers; a roll shifting strategy classification module, used to classify the plurality of rollers into a plurality of roll shifting strategies according to the roller type codes corresponding to the plurality of rollers; a roll shifting step length calculation module, used to calculate the roll shifting step length corresponding to the rollers in each roll shifting strategy; and a roll shifting execution module, used to control the rolls in the corresponding roll shifting strategy to perform roll shifting according to the roll shifting step length.

[0013] According to some embodiments of the present application, the roller shifting strategy includes: an L-shape roller type roller shifting module, used for L-shape roller type roller shifting step length calculation, and the L-shape roller type roller shifting step length calculation includes: roller shifting step length = roller shifting coefficient × (wear amount of the previous steel roller - wear amount of the current steel roller).

[0014] According to some embodiments of the present application, the roll shifting strategy also includes: a parabolic roller type roll shifting module, which is used for parabolic roller type roll shifting step length calculation, and the parabolic roller type roll shifting step length calculation includes: roll shifting step length = fixed roll shifting step length calculated according to the rolling number.

[0015] According to some embodiments of the present application, the roll shifting strategy includes: a multiple curve roller type shifting module, which is used for multiple curve roller type roll shifting step length calculation, and the multiple curve roller type roll shifting step length calculation includes: roll shifting step length = roll shifting step length calculated according to the strip convexity.

[0016] Compared with the prior art, the technical solution of the present application has the following significant beneficial effects: it meets the small convexity control requirements of different products and improves the convexity control accuracy, realizes the technical application of ultra-long rolling mileage with one roll change, and significantly improves product plate shape control and production efficiency.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0019] Figure 1 A flowchart according to an embodiment of the present application is shown;

[0020] Figure 2 A schematic diagram of a roller shifting device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0022] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0023] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0024] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0025] According to some embodiments, Figure 1 As shown, the present application provides a configuration method for a hot rolling multi-roller type, the method comprising:

[0026] Step 101, obtaining a plurality of rollers and identifying roller type codes corresponding to the plurality of rollers;

[0027] Step 102, according to the roll type codes corresponding to the multiple rolls, the multiple rolls are listed in multiple roll shifting strategies;

[0028] Step 103, calculating the roll shifting step length corresponding to the rolls in each roll shifting strategy;

[0029] Step 104, shifting the rollers in the corresponding roll shifting strategy according to the roll shifting step length.

[0030] Based on the above embodiment, the roller type code includes 10 different roller type codes, and the 10 different roller type codes are divided into 3 different roller shifting strategies. In some embodiments, 10 different roller types can be supported on the machine at the same time. In step 102, the rollers are included in the 3 roller shifting strategies according to the 10 roller type codes and installed on the machine. One roller shifting strategy has rollers with multiple different roller type codes; in step 103, the roller shifting step length corresponding to each roller shifting strategy is calculated, and one roller shifting strategy has a calculation method for the roller shifting step length; in step 104, the 10 roller type codes are divided into 3 categories, each category corresponds to a roller shifting strategy, and the roller shifting strategy of each type of roller type code is entered into the system. When rolling the strip, the corresponding roller is controlled to perform roller shifting rolling according to the calculated roller shifting step length.

[0031] Furthermore, the roll shifting strategy includes L-shape roll shifting step length calculation, and the L-shape roll shifting step length calculation includes: roll shifting step length = roll shifting coefficient × (wear amount of the previous steel roll - wear amount of the current steel roll). L-shape roll types include:

[0032] Roller name: L-SHAPE1; Roller type: Category 3; Roller code: 3; Convexity value to be transmitted: Theoretical convexity calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical convexity.

[0033] Roller name: L-SHAPE2; Roller type: Category 3; Roller code: 4; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: Actual cone angle length + cone angle depth + theoretical convexity.

[0034] Roller name: L-SHAPE; Roller type: Category 3; Roller code: 5; Crown value to be transmitted: Theoretical crown calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical crown.

[0035] Roller name: L-SHAPE4-WID; Roller type: Category 3; Roller code: 6; Crown value to be transmitted: Theoretical crown calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical crown.

[0036] Roller name: L-SHAPE5-WID; Roller type: Category 3; Roller code: 7; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical convexity.

[0037] Roller name: L-SHAPE6-WID; Roller type: Category 3; Roller code: 8; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical convexity.

[0038] Roller name: SPARE; Roller type: Class III; Roller code: 9; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: Actual cone angle length + cone angle depth + theoretical convexity.

[0039] Furthermore, the roll shifting strategy includes parabolic roll profile roll shifting step length calculation, and the parabolic roll profile roll shifting step length calculation includes: roll shifting step length = fixed roll shifting step length calculated according to the rolling quantity. The parabolic roll profile includes:

[0040] Roller name: PARAB; Roller type: First category; Roller code: 0; Crown value to be transmitted: Theoretical crown calculated according to actual needs; Roller shape parameters: The actual roller shape curve of the parabola, Sin roller and flat roller.

[0041] Furthermore, the roll shifting strategy includes multiple curve roll profile roll shifting step length calculations, and the multiple curve roll profile roll shifting step length calculations include: roll shifting step length = roll shifting step length calculated based on strip convexity. Multiple curve roll profiles include:

[0042] Roller name: CVC1; Roller type: Second type; Roller code: 1; Crown value to be transmitted: 0; Roller parameters: Multiple curves are actually issued.

[0043] Roller name: CVC2; Roller type: Second type; Roller code: 2; Crown value to be transmitted: 0; Roller parameters: Multiple curves are actually issued.

[0044] According to different actual production needs, the roll room system performs parameter and coding maintenance on the rolls to be put on the machine. The roll type code and parameters are input into the rolling mill control system by the roll room system. At the same time, the rolling control system finds the corresponding roll shifting strategy to guide production according to the code. The small crown control requirements of different products are met, and the technical application of ultra-long rolling mileage with one roll change is realized, which significantly improves the product shape control and production efficiency.

[0045] According to some embodiments, before acquiring multiple rollers and identifying roller type codes corresponding to the multiple rollers, it also includes: acquiring a roller, determining a roller type corresponding to one of the roller type codes based on the roller, and grinding the roller into the roller type corresponding to the roller type code.

[0046] The following introduces an embodiment of the device of the present application, which can be used to execute the roller shifting method in the above-mentioned embodiment of the present application.

[0047] According to some embodiments, Figure 2A schematic diagram of a roller shifting device 200 of an embodiment of the present application is shown, comprising: a code identification module 201, used to obtain multiple rollers and identify roller type codes corresponding to the multiple rollers; a roller shifting strategy classification module 202, used to classify the multiple rollers into multiple roller shifting strategies according to the roller type codes corresponding to the multiple rollers; a roller shifting step length calculation module 203, used to calculate the roller shifting step length corresponding to the rollers in each roller shifting strategy; a roller shifting execution module 204, used to control the rollers in the corresponding roller shifting strategy to perform roller shifting according to the roller shifting step length.

[0048] Based on the above embodiment, the roller type code includes 10 different roller type codes, and the 10 different roller type codes are divided into 3 different roller shifting strategies. In some embodiments, 10 different roller types can be supported on the machine at the same time. In the roller shifting strategy classification module 202, the rollers are included in the 3 roller shifting strategies according to the 10 roller type codes and installed on the machine. One roller shifting strategy has rollers with multiple different roller type codes; in the roller shifting step length calculation module 203, the roller shifting step length corresponding to each roller shifting strategy is calculated, and one roller shifting strategy has a calculation method for the roller shifting step length; in the roller shifting execution module 204, the 10 roller type codes are divided into 3 categories, each category corresponds to a roller shifting strategy, and the roller shifting strategy of each type of roller type code is entered into the system. When rolling the strip, the corresponding roller is controlled to perform roller shifting rolling according to the calculated roller shifting step length.

[0049] Furthermore, an L-shape roller type shifting module is included, which is used for calculating the step length of the L-shape roller type shifting. The calculation of the step length of the L-shape roller type shifting includes: step length of the roller shifting = roller shifting coefficient × (wear amount of the previous steel roller - wear amount of the current steel roller). The L-shape roller type includes:

[0050] Roller name: L-SHAPE1; Roller type: Category 3; Roller code: 3; Convexity value to be transmitted: Theoretical convexity calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical convexity.

[0051] Roller name: L-SHAPE2; Roller type: Category 3; Roller code: 4; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: Actual cone angle length + cone angle depth + theoretical convexity.

[0052] Roller name: L-SHAPE; Roller type: Category 3; Roller code: 5; Crown value to be transmitted: Theoretical crown calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical crown.

[0053] Roller name: L-SHAPE4-WID; Roller type: Category 3; Roller code: 6; Crown value to be transmitted: Theoretical crown calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical crown.

[0054] Roller name: L-SHAPE5-WID; Roller type: Category 3; Roller code: 7; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical convexity.

[0055] Roller name: L-SHAPE6-WID; Roller type: Category 3; Roller code: 8; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: actual cone angle length + cone angle depth + theoretical convexity.

[0056] Roller name: SPARE; Roller type: Class III; Roller code: 9; Transmitted convexity value: Theoretical convexity calculated according to actual needs; Roller shape parameters: Actual cone angle length + cone angle depth + theoretical convexity.

[0057] Furthermore, it includes a parabolic roller type roll shifting module, which is used for calculating the parabolic roller type roll shifting step length, and the parabolic roller type roll shifting step length calculation includes: roll shifting step length = fixed roll shifting step length calculated according to the rolling quantity.

[0058] Parabolic roller profiles include:

[0059] Roller name: PARAB; Roller type: First category; Roller code: 0; Crown value to be transmitted: Theoretical crown calculated according to actual needs; Roller shape parameters: The actual roller shape curve of the parabola, Sin roller and flat roller.

[0060] Furthermore, it includes a multiple curve roller shifting module for calculating the multiple curve roller shifting step length, and the multiple curve roller shifting step length calculation includes: roller shifting step length = roller shifting step length calculated according to the convexity of the strip.

[0061] Multiple curve roll types include:

[0062] Roller name: CVC1; Roller type: Second type; Roller code: 1; Crown value to be transmitted: 0; Roller parameters: Multiple curves are actually issued.

[0063] Roller name: CVC2; Roller type: Second type; Roller code: 2; Crown value to be transmitted: 0; Roller parameters: Multiple curves are actually issued.

[0064] According to different actual production needs, the roll room system performs parameter and coding maintenance on the rolls to be put on the machine. The roll type code and parameters are input into the rolling mill control system by the roll room system. At the same time, the rolling control system finds the corresponding roll shifting strategy to guide production according to the code. The small crown control requirements of different products are met, and the technical application of ultra-long rolling mileage with one roll change is realized, which significantly improves the product shape control and production efficiency.

[0065] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0066] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for configuring a hot rolling multi-roller type, characterized in that: The method comprises: Acquire a plurality of rollers and identify roller type codes corresponding to the plurality of rollers; According to the roller type codes corresponding to the multiple rollers, the multiple rollers are listed in multiple roller shifting strategies; Calculate the roll shifting step length corresponding to the rolls in each roll shifting strategy; The rollers in the roll shifting strategy corresponding to the roll shifting step length control are shifted; Before acquiring a plurality of rollers and identifying roller type codes corresponding to the plurality of rollers, the method further includes: Acquire a rolling roller, determine a roller type corresponding to one of the roller type codes according to the rolling roller, and grind the rolling roller into the roller type corresponding to the roller type code; The roll type code includes 10 different roll type codes, and the 10 different roll type codes are divided into 3 different roll shifting strategies; The roll shifting strategy includes L-shape roll shifting step length calculation, and the L-shape roll shifting step length calculation includes: Roller shifting step length = roller shifting coefficient × (wear amount of the previous steel roll - wear amount of the current steel roll); The roller shifting strategy includes parabolic roller type roller shifting step length calculation, and the parabolic roller type roller shifting step length calculation includes: Roller shifting step length = fixed roll shifting step length calculated according to the rolling quantity; The roller shifting strategy includes multiple curve roller type roller shifting step length calculations, and the multiple curve roller type roller shifting step length calculations include: Roller shifting step length = Roller shifting step length calculated based on strip convexity.

2. A hot rolling multi-roller configuration device, characterized in that: The device comprises: A code recognition module, used for acquiring a plurality of rollers and identifying roller type codes corresponding to the plurality of rollers; A roll shifting strategy classification module, used for classifying the plurality of rolls into a plurality of roll shifting strategies according to roll type codes corresponding to the plurality of rolls; A roll shifting step length calculation module is used to calculate the roll shifting step length corresponding to the rolls in each roll shifting strategy; A roll shifting execution module, used for controlling the roll shifting of the rolls in the corresponding roll shifting strategy according to the roll shifting step length; The roller shifting strategy includes: an L-shape roller type roller shifting module, which is used for L-shape roller type roller shifting step length calculation. The L-shape roller type roller shifting step length calculation includes: Roller shifting step length = roller shifting coefficient × (wear amount of the previous steel roll - wear amount of the current steel roll); The roller shifting strategy also includes: a parabolic roller type roller shifting module, which is used for calculating the parabolic roller type roller shifting step length. The parabolic roller type roller shifting step length calculation includes: Roller shifting step length = fixed roll shifting step length calculated according to the rolling quantity; The roller shifting strategy includes: a multiple curve roller shifting module, which is used for multiple curve roller shifting step length calculation, and the multiple curve roller shifting step length calculation includes: Roller shifting step length = Roller shifting step length calculated based on strip convexity.

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