An automated shearing method for deformed panel assembly

Abstract

The present application discloses an automated shearing method for deformed panel assembly, comprising the following steps: screening the deformed plate for detection and calculation to obtain the head and tail resection length and segment length, transferring the deformed steel plate to a head shearing device to sequentially perform head and tail resection and segmentation processing on the deformed steel plate to obtain a panel segment to be sheared; transferring the panel segment to be sheared to a double-sided shearing device, wherein the maximum single-sided shearing width of the double-sided shearing device is a; measuring the difference ΔL between the side length L of the to-be-sheared side of the panel segment to be sheared and the target width by a detection and calculation device, and performing the following judgment: when ΔL ≤ 2a, performing a single double-sided shearing; when ΔL > 2a, calculating using the formula (ΔL-2b) / 2a=c; rounding up the obtained value c to obtain the number of first width shearing times K, calculating using the formula (ΔL-2b) / K=2d; and performing multiple double-sided shearings with a shearing amount of 2d. The present application increases the automation level of deformed panel assembly, improving the automation level and efficiency of deformed panel assembly shearing.

Description

Technical Field

[0001] The present application relates to the field of metallurgical steel rolling, and in particular to an automated shearing method for deformed plate groups. Background Art

[0002] Shagang's medium and heavy plate production is based on contract orders. During the production process, due to the required feed ratio, multiple sub-plates of varying widths are rolled together to form a single mother plate. This type of plate assembly is known as "deformed" assembly. This "deformed" assembly is common in all major medium and heavy plate production lines, as well as wide and thick plate production lines.

[0003] Because the target widths of each sub-plate in the "deformed" plate assembly method vary, the target rolling width of the mother plate can only be determined by the widest of the target sub-plates. When the mother plate reaches the shear line, the maximum width that can be cut on both sides of the double-sided shear is fixed. If the difference between the actual width of the mother plate and the contracted width of the smallest sub-plate exceeds the maximum allowable shear range, the double-sided shearing process will require multiple shears to achieve the target width. This requires multiple crane lifts, which has a significant impact on both production costs and efficiency. Summary of the Invention

[0004] Technical problem to be solved: Double-sided shearing requires multiple shearing of the mother plate, which requires multiple crane lifts of the steel plate, which has a certain impact on both production costs and production efficiency; therefore, the purpose of this application is to provide a method for automated shearing of assembly plates by calculating the number of shearing times and sizes of assembly plates.

[0005] Technical solution: This application discloses an automated shearing method for deformed panel assembly, comprising the following steps:

[0006] Step 1: Determine the type of board: Use the detection and calculation device to detect the type mark on the board, detect and calculate the head and tail resection length and segment length of the screened deformed boards, and then transfer them to the head shear device;

[0007] Step 2: Preliminary plate processing: The detection and calculation device outputs the head and tail resection length and segment length to the cropping shear device, which performs head and tail resection and segmentation processing on the deformed steel plate in sequence to obtain the plate segment to be sheared;

[0008] Step 3: Determine the shearing method: Transfer the panel segment to be sheared to a double-sided shearing device, where the maximum single-sided shearing width of the double-sided shearing device is a; Calculate the difference ΔL between the length L of the side to be sheared and the target width using a detection and calculation device, and perform the following determination: If ΔL ≤ 2a, proceed to step 4;

[0009] When ΔL>2a, calculate using the following formula;

[0010] (ΔL-2b) / 2a=c; (1)

[0011] In formula (1), 2b is the shearing amount of the second width shearing;

[0012] After rounding up the obtained value c to get the number of first width shearing times K, it is calculated using the following formula:

[0013] (ΔL-2b) / K=2d; (2)

[0014] In formula (2), 2d is the shearing amount of a single first width shearing;

[0015] Execute step 5;

[0016] Step 4: Execute single double-sided shearing: The detection and calculation device sends shearing information to the double-sided shearing device; the double-sided shearing device performs double-sided shearing of the to-be-sheared plate segment by a shearing amount of ΔL, completing the shearing process and transferring the sheared plate to the next processing device;

[0017] Step 5. Perform multiple double-sided shearing: The detection and calculation device sends shearing information to the double-sided shearing device; the double-sided shearing device performs K double-sided shearing of the first width with a single-sided shearing amount of d on the plate segment to be sheared, and then performs one double-sided shearing of the second width with a single-sided shearing amount of b, completing the shearing process and transferring the sheared plate to the next processing device.

[0018] Preferably, the detection and calculation device includes a detection device with image recognition and processing functions and a calculation device with data processing functions; the detection device receives data information sent from the calculation device, the double-sided shearing device and the head-cutting shearing device, and outputs the data information to the calculation device, the double-sided shearing device and the head-cutting shearing device.

[0019] Preferably, the first width cutting comprises the following steps:

[0020] Step 1 # : The plate segment to be sheared is transferred from the first shear limit position of the bilateral shearing device to the second shear limit position, and shearing is performed during the transfer process; after the shearing is completed, the detection calculation device is used to perform assignment calculation, and the new K is assigned to the current K minus 1, and it is determined whether the new K value is 0. If it is 0, step 2 is executed # ; If not 0, go to step 3 # ;

[0021] Step 2 # : The detection and calculation device transmits an instruction to the double-sided shearing device to transfer the panel segment to be sheared from the second shearing limit position of the double-sided shearing device back to the first shearing limit position, without shearing during the transfer process; and prepares to perform the second width shearing;

[0022] Step 3 # : The detection and calculation device transmits an instruction to the bilateral shearing device to transfer the plate segment to be sheared from the second shearing limit position of the bilateral shearing device back to the first shearing limit position, and no shearing is performed during the transfer process; return to step 1 # .

[0023] Preferably, the cutting information in step 4 and step 5 includes cutting mode, cutting amount and cutting times.

[0024] Preferably, the maximum single-side shearing width of the double-sided shearing device is a, and the maximum total width of a single double-sided shearing is 2a;

[0025] Among them, the value range of 2a is 240~260mm; the shearing amount 2b of the second width shearing is 80~120mm.

[0026] Beneficial effects: The technical solution disclosed in this application increases the degree of automation of deformed panel assembly, eliminating the need for manual calculation and operation of panel assembly and shearing, and eliminating the need for a crane to lift steel plates; it improves the degree of automation and efficiency of deformed panel assembly and shearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A flow chart of the automated shearing method for this application;

[0028] Figure 2 Flowchart for the first width cut of this application. DETAILED DESCRIPTION

[0029] The technical solution of this application is further described below with reference to the accompanying drawings. Example 1:

[0030] In this embodiment, the target width is 1000 mm; the maximum single shearing width 2a is 250 mm, and the shearing amount 2b of the second width shearing is 120 mm.

[0031] like Figure 1 As shown in the flow chart, the deformed panels screened out by the detection and calculation device are first measured again by the detection and calculation device for their head and tail resection length and segment length, and then transported to the head cutting shear device for head and tail resection and segmentation processing in sequence to obtain the panels to be sheared.

[0032] The length L of the side to be sheared of the panel to be sheared is measured by the detection and calculation device to be 1520 mm. The difference ΔL between the side length L and the target width of 1000 mm is then calculated to be 520 mm, and ΔL>2a. The following formula is used for calculation by the detection and calculation device;

[0033] (ΔL-2b) / 2a=c; (1)

[0034] Get c=1.6, round up to get the first width shearing times K=2; calculate using the following formula through the detection calculation device;

[0035] (ΔL-2b) / K=2d; (2)

[0036] The first width shearing amount 2d=200mm is obtained; the detection and calculation device transmits the shearing information including the shearing number K, the first width shearing amount 2d, the second width shearing amount 2b and the execution of multiple bilateral shearing instructions to the bilateral shearing device; the group of panels to be sheared is transported to the bilateral shearing device to execute multiple bilateral shearing.

[0037] like Figure 2 As shown in the flow chart, the bilateral shearing device transfers the first shear limit position of the plate segment to be sheared to the second shear limit position, and performs the first bilateral first width shearing with a single-sided first width shearing amount d=100mm during the transfer process. After the first shearing is completed, the detection calculation device performs a value assignment calculation, assigns K=K-1, and determines whether K is 0; at this time, the K value is 1.

[0038] The detection and calculation device transmits an instruction to the bilateral shearing device to transfer the panel segment to be sheared from the second shear limit position of the bilateral shearing device back to the first shear limit position, and no shearing is performed during the transfer process; the bilateral shearing device again transfers the panel segment to be sheared from the first shear limit position to the second shear limit position, and performs a second bilateral first width shearing with a single-sided first width shearing amount of d=100mm during the transfer process. After the second shearing is completed, the detection and calculation device performs an assignment calculation, assigns K=K-1, and determines whether K is 0; at this time, the K value is 0.

[0039] The detection and calculation device transmits an instruction to the double-sided shearing device to transfer the panel section to be sheared from the second shear limit position of the double-sided shearing device back to the first shear limit position, and no shearing is performed during the transfer process; the double-sided shearing device performs a single-sided second width shearing of b=60mm on the panel to be sheared that has completed the first width shearing, and after completing the shearing process, the sheared panel is transferred to the next processing device to complete the automated shearing process of the deformed panel. Example 2:

[0040] In this embodiment, the target width is 1000 mm; the maximum single shearing width 2a is 250 mm, and the shearing amount 2b of the second width shearing is 120 mm.

[0041] like Figure 1 As shown in the flow chart, the deformed panels screened out by the detection and calculation device are first measured again by the detection and calculation device for their head and tail resection length and segment length, and then transported to the head cutting shear device for head and tail resection and segmentation processing in sequence to obtain the panels to be sheared.

[0042] The detection and calculation device measures the length L of the side to be sheared of the panel to be sheared to be 1220 mm, and then calculates that the difference ΔL between the side length L and the target width 1000 mm is 220 mm, and ΔL < 2a. The detection and calculation device sends shearing information to the double-sided shearing device with a double-sided shearing amount of ΔL and a single double-sided shearing instruction; after the double-sided shearing device performs double-sided shearing with a shearing amount of ΔL on the panel to be sheared segment, it completes the shearing process and transfers the sheared plate to the next processing device, completing the automated shearing process for the deformed panel.

Claims

1. A method for automatically shearing deformed panels, characterized in that: The following steps are involved: Step 1: Determine the type of board: Use the detection and calculation device to detect the type mark on the board, detect and calculate the head and tail resection length and segment length of the screened deformed boards, and then transfer them to the head shear device; Step 2: Preliminary plate processing: The detection and calculation device outputs the head and tail resection length and segment length to the cropping shear device, which performs head and tail resection and segmentation processing on the deformed steel plate in sequence to obtain the plate segment to be sheared; Step 3: Determine the shearing method: Transfer the panel segment to be sheared to a double-sided shearing device, where the maximum single-sided shearing width of the double-sided shearing device is a; Calculate the difference ΔL between the length L of the side to be sheared and the target width using a detection and calculation device, and perform the following determination: If ΔL ≤ 2a, proceed to step 4; When ΔL>2a, calculate using the following formula; (ΔL-2b) / 2a=c; (1) In formula (1), 2b is the shearing amount of the second width shearing; After rounding up the obtained value c to get the number of first width shearing times K, it is calculated using the following formula: (ΔL-2b) / K=2d; (2) In formula (2), 2d is the shearing amount of a single first width shearing; Execute step 5; Step 4: Perform single double-sided shearing: The detection and calculation device sends shearing information to the double-sided shearing device; the double-sided shearing device performs double-sided shearing of the to-be-sheared plate segment by a shearing amount of ΔL, completing the shearing process and transferring the sheared plate to the next processing device; Step 5. Perform multiple double-sided shearing: The detection and calculation device sends shearing information to the double-sided shearing device; the double-sided shearing device performs K double-sided shearing of the first width with a single-sided shearing amount of d on the plate segment to be sheared, and then performs one double-sided shearing of the second width with a single-sided shearing amount of b, completing the shearing process and transferring the sheared plate to the next processing device.

2. The automated shearing method according to claim 1, wherein The detection and calculation device includes a detection device with image recognition and processing functions and a calculation device with data processing functions; The detection device receives data information sent from the computing device, the double-sided shearing device and the cropping shear device, and outputs the data information to the computing device, the double-sided shearing device and the cropping shear device.

3. The automated shearing method according to claim 1, wherein The first width cutting comprises the following steps: Step 1 # : The plate segment to be sheared is transferred from the first shear limit position of the bilateral shearing device to the second shear limit position, and shearing is performed during the transfer process; after the shearing is completed, the detection calculation device is used to perform assignment calculation, and the new K is assigned to the current K minus 1, and it is determined whether the new K value is 0. If it is 0, step 2 is executed # ; If not 0, go to step 3 # ; Step 2 # : The detection and calculation device transmits an instruction to the double-sided shearing device to transfer the panel segment to be sheared from the second shearing limit position of the double-sided shearing device back to the first shearing limit position, without shearing during the transfer process; and prepares to perform the second width shearing; Step 3 # : The detection and calculation device transmits an instruction to the bilateral shearing device to transfer the plate segment to be sheared from the second shearing limit position of the bilateral shearing device back to the first shearing limit position, and no shearing is performed during the transfer process; return to step 1 # .

4. The automated shearing method according to claim 1, wherein: The shearing information in step 4 and step 5 includes shearing mode, shearing amount and shearing times.

5. The automated shearing method according to claim 1, wherein: The maximum single-side shearing width of the double-sided shearing device is a, and the maximum total width of a single double-sided shearing is 2a; Among them, the value range of 2a is 240~260mm; the shearing amount 2b of the second width shearing is 80~120mm.

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