Nine-roller straightener roll shape configuration method and device

Abstract

The application discloses a nine-roller straightening machine roller shape configuration method and device, and the method comprises the following steps: obtaining the edge wave data of a plate to be straightened, the roller body length of each straightening roller and the initial radius; for the No. 3 roller and the No. 4 roller, determining the straightening roller profile convexity according to the edge wave data of the plate to be straightened; determining the first straightening roller profile curve according to the roller body length, the initial radius and the straightening roller profile convexity of the straightening roller; for the No. 5 roller, the No. 6 roller and the No. 7 roller, determining the circular arc curve depth of the two ends of the straightening roller according to the edge wave data of the plate to be straightened; determining the circular arc curve length of the two ends of the straightening roller according to the roller body length of the straightening roller; and determining the second straightening roller profile curve according to the roller body length, the initial radius, the circular arc curve depth of the two ends of the straightening roller and the circular arc curve length of the two ends of the straightening roller. The application adopts the roller shape configuration of mutual cooperation between the straightening rollers, can straighten the edge wave plates with different widths, and improves the post-straightening precision.

Description

Technical Field

[0001] This invention relates to the field of computer technology, and in particular to a method and apparatus for configuring the roll shape of a nine-roll straightener. Background Technology

[0002] This section is intended to provide background or context for the embodiments of the invention set forth in the claims. The description herein is not an admission that it is prior art simply because it is included in this section.

[0003] Currently, traditional straightening machines use straight rollers, which cannot achieve good straightening results when straightening boards with certain edge waviness. In addition, there are some straightening devices with bending rollers, which straighten boards with slight edge waviness by bending the straightening rollers. However, the bending amount of the straightening rollers in such devices is limited, and they cannot achieve good straightening results for boards with larger edge waviness.

[0004] In existing straightening technologies, some straightening machines without bending rollers primarily rely on the reduction in pressure of each roller during the straightening process to homogenize the longitudinal fibers of the strip, thereby correcting boards with edge waviness defects. This method offers some improvement for boards with initially large waviness, but it cannot completely eliminate the edge waviness defect, especially when the waviness is significant; without bending rollers, the residual curvature of the board after straightening cannot meet the requirements. While this method can correct edge waviness to some extent, with the increasing demands for product quality and precision, the unevenness eliminated by this method cannot meet the requirements. Some existing straightening technologies include straightening equipment with bending roller capabilities. This involves bending the straightening rollers to adjust the gap between them, thereby correcting the edge waviness. This method is only effective for boards with small edge waviness. For boards with large edge waviness, the bending roller capacity may reach its limit before the edge waviness problem is resolved. In this case, the bending roller capacity will be insufficient to solve the edge waviness problem, and without the straightening capability provided by the shape of the straightening rollers, it is difficult to achieve the required straightening precision. Summary of the Invention

[0005] This invention provides a method for configuring the roll shape of a nine-roll straightener to straighten corrugated sheets of different widths and improve post-straightening accuracy. The method includes:

[0006] Obtain the edge waviness data of the plate to be straightened, the roll body length and initial radius of each straightening roll;

[0007] For rollers No. 3 and No. 4, the roll convexity of the straightening rollers is determined based on the edge waviness data of the sheet material to be straightened;

[0008] For rollers No. 3 and No. 4, the roller profile curve of the first straightening roller is determined based on the roller body length, initial radius, and roller profile convexity of the straightening roller.

[0009] For rollers No. 5, No. 6 and No. 7, the depth of the arc curve at both ends of the straightening rollers is determined based on the edge waviness data of the plate to be straightened;

[0010] For rollers No. 5, No. 6 and No. 7, the length of the arc curve at both ends of the straightening roller is determined according to the length of the roller body.

[0011] For rollers 5, 6 and 7, the roller profile curve of the second straightening roller is determined based on the roller body length, initial radius, arc curve depth at both ends of the straightening roller and arc curve length at both ends of the straightening roller.

[0012] This invention also provides a roller configuration device for a nine-roller straightener, used to straighten edge corrugated plates of different widths and improve post-straightening accuracy. The device includes:

[0013] The acquisition module is used to acquire the edge waviness data of the plate to be straightened, the roll body length and initial radius of each straightening roll;

[0014] The processing module is used to determine the roll convexity of the straightening rollers for rollers 3 and 4 based on the edge waviness data of the material to be straightened; to determine the first straightening roller shape curve for rollers 3 and 4 based on the roll body length, initial radius, and roll convexity of the straightening rollers; to determine the arc curve depth at both ends of the straightening rollers for rollers 5, 6, and 7 based on the edge waviness data of the material to be straightened; to determine the arc curve length at both ends of the straightening rollers for rollers 5, 6, and 7 based on the roll body length of the straightening rollers; and to determine the second straightening roller shape curve for rollers 5, 6, and 7 based on the roll body length, initial radius, arc curve depth at both ends of the straightening rollers, and arc curve length at both ends of the straightening rollers.

[0015] This invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the above-described nine-roll straightener roll configuration method.

[0016] This invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described nine-roll straightener roll configuration method.

[0017] This invention also provides a computer program product, which includes a computer program that, when executed by a processor, implements the above-described nine-roll straightener roll configuration method.

[0018] In this embodiment of the invention, the edge waviness data of the plate to be straightened, the roll body length and initial radius of each straightening roller are obtained; for rollers No. 3 and No. 4, the roll convexity of the straightening roller is determined based on the edge waviness data of the plate to be straightened; the first straightening roller shape curve is determined based on the roll body length, initial radius and roll convexity of the straightening roller; for rollers No. 5, No. 6 and No. 7, the arc curve depth at both ends of the straightening roller is determined based on the edge waviness data of the plate to be straightened; the arc curve length at both ends of the straightening roller is determined based on the roll body length; the second straightening roller shape curve is determined based on the roll body length, initial radius, arc curve depth at both ends of the straightening roller and arc curve length at both ends of the straightening roller. Compared with the prior art, the roller shape configuration with mutual cooperation between straightening rollers can straighten plates with edge waviness of different widths, improving the post-straightening accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the nine-roller straightening machine provided by the present invention;

[0021] Figure 2 This is a flowchart illustrating the roller configuration method for the nine-roller straightener provided by the present invention.

[0022] Figure 3 This is a flowchart illustrating the roller configuration method for the nine-roller straightener provided by the present invention.

[0023] Figure 4 A schematic diagram of the roll profile curves of the No. 3 and No. 4 straightening rolls provided by the present invention;

[0024] Figure 5 A schematic diagram of the roll profile curves of the No. 5, No. 6, and No. 7 straightening rolls provided for this invention;

[0025] Figure 6 This is a schematic diagram of the roll configuration device for the nine-roller straightener provided by the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0027] like Figure 1 As shown, this is a straightening strategy where the upper rollers are tilted and pressed down. The inlet pressing amount is greater than the outlet pressing amount. For a typical nine-roll straightener, the plastic deformation rate that the plate can achieve at the 3rd and 4th straightening rollers is relatively large, and its role in the straightening process is significant. However, during the straightening process, the pressing amount gradually decreases, and the plastic deformation rate of the plate at the 5th, 6th, and 7th straightening rollers gradually decreases, so their role in the straightening process is relatively reduced.

[0028] Based on this Figure 2 This is a schematic flowchart illustrating the roller profile configuration method for a nine-roll straightener provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the method includes:

[0029] Step 201: Obtain the edge waviness data of the plate to be straightened, the roll body length of each straightening roller, and the initial radius.

[0030] Step 202: For rollers No. 3 and No. 4, determine the roll convexity of the straightening rollers based on the edge waviness data of the plate to be straightened.

[0031] Step 203: For rollers No. 3 and No. 4, determine the first straightening roller profile curve based on the roller body length, initial radius, and roller profile convexity of the straightening roller.

[0032] In this embodiment of the invention, the calculation formula for the roll profile curve of the first straightening roll is as follows:

[0033]

[0034] Where y is the radius of each straightening roll; δ is the roll crown; x is the coordinate of the straightening roll body; L b R is the length of the straightening roller body. b The initial radius of the straightening roller is given.

[0035] It should be noted that the roll crown is determined based on the size of the edge wave.

[0036] For example, when the edge waviness is large, the roll crown is 0.6 mm; when the edge waviness is small, the roll crown is 0.4 mm; and when the edge waviness is small, the roll crown is 0.2 mm.

[0037] In this embodiment of the invention, the roll shape of rolls No. 3 and No. 4 is a quadratic curve.

[0038] Step 204: For rollers 5, 6 and 7, determine the arc curve depth at both ends of the straightening rollers based on the edge waviness data of the material to be straightened.

[0039] Step 205: For rollers 5, 6 and 7, determine the length of the arc curves at both ends of the straightening rollers based on the length of the roller body.

[0040] Step 206: For rollers 5, 6 and 7, determine the roller profile curve of the second straightening roller based on the roller body length, initial radius, arc curve depth at both ends of the straightening roller and arc curve length at both ends of the straightening roller.

[0041] In this embodiment of the invention, the calculation formula for the roll profile curve of the second straightening roll is as follows:

[0042]

[0043] Where y is the radius of each straightening roll; x is the coordinate of the straightening roll body; L b1 h is the length of the arc curve at both ends of the straightening roller. b1 L represents the depth of the arc curve at both ends of the straightening roller. b R is the length of the straightening roller body. b The initial radius of the straightening roller is given.

[0044] In this embodiment of the invention, rollers No. 5, No. 6, and No. 7 are straight in the middle and curved at the ends to straighten some edge corrugated plates whose width is greater than 80% of the roller body length.

[0045] The above solution achieves normal straightening and conveying for plates with a width less than 80% of the roller body length, and achieves edge straightening and conveying for plates with a width greater than 80% of the roller body length.

[0046] The length of the arc curves at both ends of the straightening roller is determined by the length of the roller body. The specific formula for calculating the length of the arc curves at both ends of the straightening roller is as follows:

[0047]

[0048] Among them, L b1 L is the length of the arc curve at both ends of the straightening roller; b The length of the straightening roller body.

[0049] In this embodiment of the invention, the depth of the arc curve at both ends of the straightening roller is determined by the size of the edge wave.

[0050] For example, when the edge waves are large, take 0.6 mm, then take 0.4 mm, and when the edge waves are small, take 0.2 mm.

[0051] In this embodiment of the invention, straightening rollers No. 3 and No. 4 fully utilize their ability to straighten edge corrugated plates of all widths, especially ensuring the straightening effect of edge corrugated plates whose width is less than 80% of the roller body length. The straightening of edge corrugated plates whose width is greater than 80% of the roller body length can be further achieved by straightening rollers No. 5, No. 6, and No. 7, so that the straightened plates can meet the high precision requirements.

[0052] The above scheme employs a combination of quadratic function curves and straight lines, configuring relevant roller shapes according to the straightening capacity of each roller. By adjusting the roller shapes of the straightening rollers, the shape of the roller gaps between them is adjusted, thereby improving the straightening capacity of the straightening rollers for corrugated sheet metal. The use of a coordinated roller shape configuration between the straightening rollers enables the straightening of corrugated sheet metal of different widths, improving post-straightening accuracy.

[0053] In this embodiment of the invention, the crown of the straightening roller is determined based on the edge waviness data of the sheet material to be straightened. The steps are as follows: Figure 3 As shown, the details are as follows:

[0054] Step 301: When the edge waviness data of the plate to be straightened is within the first range, the straightening roller convexity adopts the first convexity value.

[0055] Step 302: When the edge waviness data of the plate to be straightened is within the second range, the straightening roller convexity adopts the second convexity value.

[0056] Step 303: When the edge waviness data of the plate to be straightened is within the third range, the straightening roller convexity adopts the third convexity value.

[0057] It should be noted that the first convexity value is greater than the second convexity value; the second convexity value is greater than the third convexity value; the minimum value of the first range is greater than the maximum value of the second range; and the minimum value of the second range is greater than the maximum value of the third range.

[0058] The following example uses the roll configuration of a nine-roll straightener when the edge waves are large:

[0059] Straightening roll body length L b =4200mm, initial radius R of the straightening roller b =105mm, and based on the size of the edge waviness of the sheet metal, the crown of the straightening roller is given as δ=0.6mm. Therefore, the specific calculation formula for the roller profile curve of the first straightening roller is as follows:

[0060]

[0061] like Figure 4 The figure shows the roll profile curves of straightening rolls No. 3 and No. 4.

[0062] The lengths L of the arc curves at both ends of the straightening roller are calculated based on the length of the roller body. b1 =420mm, the depth h of the arc curve is given according to the size of the edge wave. b1 =0.6mm, therefore the specific formula for calculating the roll profile curve of the second straightening roll is as follows:

[0063]

[0064] like Figure 5The figure shows the roll profile curves of straightening rolls No. 5, No. 6, and No. 7.

[0065] This invention also provides a roller profile configuration device for a nine-roller straightener, as described in the following embodiments. This device is as follows... Figure 6 As shown, the device includes:

[0066] The acquisition module 601 is used to acquire the edge waviness data of the plate to be straightened, the roll body length and initial radius of each straightening roller;

[0067] Processing module 602 is used to determine the roll convexity of straightening rollers based on the edge waviness data of the material to be straightened for rollers 3 and 4; to determine the first straightening roller shape curve based on the roll body length, initial radius, and roll convexity of straightening rollers for rollers 3 and 4; to determine the arc curve depth at both ends of straightening rollers based on the edge waviness data of the material to be straightened for rollers 5, 6, and 7; to determine the arc curve length at both ends of straightening rollers based on the roll body length of straightening rollers for rollers 5, 6, and 7; and to determine the second straightening roller shape curve based on the roll body length, initial radius, arc curve depth at both ends of straightening rollers, and arc curve length at both ends of straightening rollers for rollers 5, 6, and 7.

[0068] In this embodiment of the invention, the processing module 602 is specifically used for:

[0069] The specific formula for calculating the roll profile curve of the first straightening roll is as follows:

[0070]

[0071] Where y is the radius of each straightening roll; δ is the roll crown; x is the coordinate of the straightening roll body; L b R is the length of the straightening roller body. b The initial radius of the straightening roller is given.

[0072] In this embodiment of the invention, the processing module 602 is specifically used for:

[0073]

[0074] Where y is the radius of each straightening roll; x is the coordinate of the straightening roll body; L b1 h is the length of the arc curve at both ends of the straightening roller. b1 L represents the depth of the arc curve at both ends of the straightening roller. b R is the length of the straightening roller body. b The initial radius of the straightening roller is given.

[0075] In this embodiment of the invention, the processing module 602 is specifically used for:

[0076]

[0077] Among them, L b1 L is the length of the arc curve at both ends of the straightening roller; b The length of the straightening roller body.

[0078] In this embodiment of the invention, the processing module 602 is specifically used for:

[0079] When the edge waviness data of the plate to be straightened is within the first range, the straightening roller crown is adopted with the first crown value;

[0080] When the edge waviness data of the plate to be straightened is within the second range, the straightening roller crown is adopted with the second crown value;

[0081] When the edge waviness data of the plate to be straightened is in the third range, the straightening roller convexity adopts the third convexity value; the first convexity value is greater than the second convexity value; the second convexity value is greater than the third convexity value; the minimum value of the first range is greater than the maximum value of the second range; the minimum value of the second range is greater than the maximum value of the third range.

[0082] Since the principle by which this device solves the problem is similar to the roll configuration method of a nine-roll straightener, the implementation of this device can be found in the implementation of the roll configuration method of a nine-roll straightener, and the repetitive parts will not be repeated.

[0083] This invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the above-described nine-roll straightener roll configuration method.

[0084] This invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described nine-roll straightener roll configuration method.

[0085] This invention also provides a computer program product, which includes a computer program that, when executed by a processor, implements the above-described nine-roll straightener roll configuration method.

[0086] In this embodiment of the invention, the edge waviness data of the plate to be straightened, the roll body length and initial radius of each straightening roller are obtained; for rollers No. 3 and No. 4, the roll convexity of the straightening roller is determined based on the edge waviness data of the plate to be straightened; the first straightening roller shape curve is determined based on the roll body length, initial radius and roll convexity of the straightening roller; for rollers No. 5, No. 6 and No. 7, the arc curve depth at both ends of the straightening roller is determined based on the edge waviness data of the plate to be straightened; the arc curve length at both ends of the straightening roller is determined based on the roll body length; the second straightening roller shape curve is determined based on the roll body length, initial radius, arc curve depth at both ends of the straightening roller and arc curve length at both ends of the straightening roller. Compared with the prior art, the roller shape configuration with mutual cooperation between straightening rollers can straighten plates with edge waviness of different widths, improving the post-straightening accuracy.

[0087] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0088] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0089] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0090] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0091] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for configuring the roll shape of a nine-roll straightener, characterized in that, include: Obtain the edge waviness data of the plate to be straightened, the roll body length and initial radius of each straightening roll; For rollers No. 3 and No. 4, the roll convexity of the straightening rollers is determined based on the edge waviness data of the sheet material to be straightened; For rollers No. 3 and No. 4, the roller profile curve of the first straightening roller is determined based on the roller body length, initial radius, and roller profile convexity of the straightening roller. For rollers No. 5, No. 6 and No. 7, the depth of the arc curve at both ends of the straightening rollers is determined based on the edge waviness data of the plate to be straightened; For rollers No. 5, No. 6 and No. 7, the length of the arc curve at both ends of the straightening roller is determined according to the length of the roller body. For rollers No. 5, No. 6 and No. 7, the roller profile curve of the second straightening roller is determined based on the roller body length, initial radius, arc curve depth at both ends of the straightening roller and arc curve length at both ends of the straightening roller. The specific formula for calculating the roll profile curve of the first straightening roll is as follows: Where y is the radius of the straightening roller profile; x represents the roll crown; x represents the coordinates of the straightening roll body. The length of the straightening roller body; The initial radius of the straightening roller; The specific formula for calculating the roll profile curve of the second straightening roll is as follows: Where y is the radius of the straightening roll profile; x is the coordinate of the straightening roll body; The length of the arc curves at both ends of the straightening roller; The depth of the arc curve at both ends of the straightening roller; The length of the straightening roller body; The initial radius of the straightening roller is given.

2. The roller configuration method for a nine-roll straightener as described in claim 1, characterized in that, The specific formula for calculating the length of the arc curves at both ends of the straightening roller is as follows: in, The length of the arc curves at both ends of the straightening roller; The length of the straightening roller body.

3. The roller configuration method for a nine-roll straightener as described in claim 1, characterized in that, The crown of the straightening roller is determined based on the edge waviness data of the sheet material to be straightened, including: When the edge waviness data of the plate to be straightened is within the first range, the straightening roller crown is adopted with the first crown value; When the edge waviness data of the plate to be straightened is within the second range, the straightening roller crown is adopted with the second crown value; When the edge waviness data of the plate to be straightened is in the third range, the straightening roller convexity adopts the third convexity value; the first convexity value is greater than the second convexity value; the second convexity value is greater than the third convexity value; the minimum value of the first range is greater than the maximum value of the second range; the minimum value of the second range is greater than the maximum value of the third range.

4. A roller configuration device for a nine-roller straightener, characterized in that, include: The acquisition module is used to acquire the edge waviness data of the plate to be straightened, the roll body length and initial radius of each straightening roll; The processing module is used to determine the roll convexity of straightening rollers for rollers 3 and 4 based on the edge waviness data of the material to be straightened; to determine the first straightening roller shape curve for rollers 3 and 4 based on the roll body length, initial radius, and roll convexity; to determine the arc curve depth at both ends of straightening rollers 5, 6, and 7 based on the edge waviness data of the material to be straightened; to determine the arc curve length at both ends of straightening rollers 5, 6, and 7 based on the roll body length; and to determine the second straightening roller shape curve for rollers 5, 6, and 7 based on the roll body length, initial radius, arc curve depth at both ends, and arc curve length at both ends. The specific formula for calculating the roll profile curve of the first straightening roll is as follows: Where y is the radius of the straightening roller profile; x represents the roll crown; x represents the coordinates of the straightening roll body. The length of the straightening roller body; The initial radius of the straightening roller; The specific formula for calculating the roll profile curve of the second straightening roll is as follows: Where y is the radius of the straightening roll profile; x is the coordinate of the straightening roll body; The length of the arc curves at both ends of the straightening roller; The depth of the arc curve at both ends of the straightening roller; The length of the straightening roller body; The initial radius of the straightening roller is given.

5. The roller configuration device for a nine-roller straightener as described in claim 4, characterized in that, The processing module is specifically used for: When the edge waviness data of the plate to be straightened is within the first range, the straightening roller crown is adopted with the first crown value; When the edge waviness data of the plate to be straightened is within the second range, the straightening roller crown is adopted with the second crown value; When the edge waviness data of the plate to be straightened is in the third range, the straightening roller convexity adopts the third convexity value; the first convexity value is greater than the second convexity value; the second convexity value is greater than the third convexity value; the minimum value of the first range is greater than the maximum value of the second range; the minimum value of the second range is greater than the maximum value of the third range.

6. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method according to any one of claims 1 to 3.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method of any one of claims 1 to 3.

8. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the method of any one of claims 1 to 3.

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