A precise and efficient replacement method for the cleaning section brush roll

Abstract

The present invention relates to the technical field of roll changing in hot-dip galvanizing and continuous annealing production lines, and specifically discloses a precise and efficient method for replacing the brush rolls in the cleaning section. 1) Establish a coordinate system for brush roll changing, with the X-axis determining the position of the brush roll number, the Y-axis being the receiving position or advancing position of the brush roll, and the Z-axis being the loading and unloading position of the brush roll; 2) Establish a brush roll changing system and set the logical relationship of the coordinate systems of the X-axis, Y-axis, and Z-axis; 3) Connect the brush roll changing system to the HMI interface, and the HMI interface can select the brush roll to be replaced and input the X-axis coordinate; 4) Select the brush roll to be replaced on the HMI interface and execute the roll changing operation; 5) The roll changing trolley first automatically runs to the position of the brush roll to be replaced, runs to the brush roll receiving position, and extracts the brush roll; 6) The roll changing trolley returns to the initial position, and the automatic brush roll replacement operation ends; The present invention realizes the precise, rapid and automatic replacement of the brush roll, with high working efficiency, saving manpower and material resources, and at the same time significantly improving the assembly accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of roll changing in hot-dip galvanizing and continuous annealing production lines, and particularly relates to a precise and efficient method for replacing the brush rolls in the cleaning section. Background Art

[0002] In continuous hot-dip galvanizing and continuous annealing production lines, the replacement of brush rolls requires the cooperation of 2-3 people, and the roll changing is carried out by manually adjusting the position of the roll changing trolley. This roll changing mode has the following disadvantages: (1) Manually jogging the motor to move the roll changing trolley to the position of the brush roll to be replaced. In this way, the operator determines the horizontal level between the trolley and the brush roll, and it needs to be adjusted multiple times to make the brush roll to be replaced and the trolley at the same level, with extremely low efficiency; (2) Using a manually operated pressure lifting device to move the roll changing trolley to the position for brush roll unloading and loading. This method is not only laborious to operate, but also requires multiple adjustments, wasting a lot of time; (3) Manually jogging the motor to move the roll changing trolley forward to the brush roll receiving position. This method requires the operator to jog the motor multiple times, with low efficiency.

[0003] The cleaning effect of the strip steel in hot-dip galvanizing and continuous annealing production lines has a great impact on the surface of the furnace rolls and the strip steel. Poor cleaning effect will lead to problems such as nodulation on the furnace rolls and reduction of the strip steel surface quality. As a key process part in the cleaning section, the condition of the brush rolls seriously affects the cleaning effect. Due to the inevitable frequent changes in specifications during the production of the unit, at high speeds, the edges of narrow-specification strip steel will cut off the bristles. When producing wide-specification strip steel again, width marks will be left on its surface. In order to improve the cleaning effect, the brush rolls need to be replaced regularly, generally once every 3 months, and each replacement takes 2-3 hours. It is found through investigation that currently, the roll changing operation is completed by manually adjusting the position of the hydraulic roll changing trolley multiple times by workers and arranging one person to confirm. Therefore, it is necessary to design a precise and efficient method for replacing the brush rolls in the cleaning section to solve the problems of low existing roll changing efficiency and poor effect of multiple adjustments. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a precise and efficient method for replacing the brush rolls in the cleaning section.

[0005] The technical solution adopted by the present invention to solve its technical problems is: A precise and efficient method for replacing the brush rolls in the cleaning section, including the following steps:

[0006] 1) Establish a brush roll changing coordinate system, determine the position of the brush roll number with the X-axis, the brush roll receiving position or the advancing position with the Y-axis, and the brush roll unloading and loading position with the Z-axis;

[0007] 2) Establish a brush roll changing system and set the logical relationship of the coordinate systems of the X-axis, Y-axis, and Z-axis;

[0008] 3) Connect the brush roll changing system to the HMI interface. The HMI interface can select the brush roll to be replaced and input the X-axis coordinate.

[0009] 4) Select the brush roll to be replaced on the HMI interface and perform the roll change operation.

[0010] 5) The roll changing cart first automatically runs to the position of the brush roll to be replaced. The lifting device automatically rises to the brush roll loading and unloading position. The roll changing cart runs to the brush roll receiving position and pulls out the brush roll.

[0011] 6) Lift out the old brush roll with a crane, lift the new brush roll onto the roll changing cart, then push the new brush roll into the roll changing cart. The roll changing cart returns to the initial position, and the automatic brush roll replacement operation ends.

[0012] Specifically, the X-axis in step 1) is the advancing direction of the processing line, which is used to determine the brush roll number. A total of 8 coordinates are set on the X-axis corresponding to 8 brush roll numbers. Coordinate 1 represents brush roll No. 1, coordinate 2 represents brush roll No. 2, coordinate 3 represents brush roll No. 3, coordinate 4 represents brush roll No. 4, coordinate 5 represents brush roll No. 5, coordinate 6 represents brush roll No. 6, coordinate 7 represents brush roll No. 7, and coordinate 8 represents brush roll No. 8.

[0013] Specifically, the Y-axis in step 1) is the horizontal direction of the processing line, which is used to determine the brush roll receiving position or the pushing position. One coordinate is set on the Y-axis. Coordinate 1 represents the brush roll receiving position or the pushing position, and the initial position of coordinate 0 represents the brush roll being pulled out.

[0014] Specifically, the Z-axis in step 1) is the height direction of the processing line, which is used to determine the brush roll loading and unloading position. Two coordinates are set on the Z-axis. Coordinate 1 represents the lower brush roll loading and unloading position, and coordinate 2 represents the upper brush roll loading and unloading position.

[0015] Specifically, the upper brush rolls include brush roll No. 1, brush roll No. 3, brush roll No. 5, and brush roll No. 7, and the lower brush rolls include brush roll No. 2, brush roll No. 4, brush roll No. 6, and brush roll No. 8.

[0016] Specifically, the logical relationship of the X-axis, Y-axis, and Z-axis coordinate systems set in the brush roll changing system in step 2) is as follows:

[0017] When the given X-axis coordinate is an odd coordinate, the Z-axis coordinate is automatically given as coordinate 2, and the Y-axis coordinate is first automatically given as coordinate 1. When the Y-axis reaches the position of coordinate 1 and stays for 30 seconds, it executes coordinate 0. When the given X-axis coordinate is an even coordinate, the Z-axis coordinate is automatically given as coordinate 1, and the Y-axis coordinate is first automatically given as coordinate 1. When the Y-axis reaches the position of coordinate 1 and stays for 30 seconds, it executes coordinate 0, and the timing ends.

[0018] The present invention has the following beneficial effects:

[0019] The precise and efficient replacement method for the cleaning section brush rolls designed in the present invention realizes the precise, rapid and automatic replacement of brush rolls by establishing a brush roll replacement coordinate system, determining the brush roll number position with the X-axis, the brush roll receiving position or advancing position with the Y-axis, and the brush roll loading and unloading position with the Z-axis, connecting the HMI interface to the brush roll replacement system, and inputting the brush roll to be replaced on the HMI interface. The average brush roll replacement time is reduced from 2 - 3 hours to within 1 hour, the number of operators is reduced from 2 - 3 people operating simultaneously to 1 person operating independently, and the assembly accuracy is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the brush roll replacement coordinate system.

[0021] Figure 2 It is a flowchart of the precise and efficient replacement method for the cleaning section brush rolls. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present invention will be further described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0023] As Figure 1-2 shown, for the precise and efficient replacement method of the cleaning section brush rolls, by establishing a brush roll replacement coordinate system, determining the brush roll number position with the X-axis, the brush roll receiving position or advancing position with the Y-axis, and the brush roll loading and unloading position with the Z-axis, connecting the HMI interface to the brush roll replacement system, and inputting the brush roll to be replaced on the HMI interface, the precise, rapid and automatic replacement of brush rolls can be realized. The average brush roll replacement time is reduced from 2 - 3 hours to within 1 hour, the number of operators is reduced from 2 - 3 people operating simultaneously to 1 person operating independently, and the assembly accuracy is significantly improved.

[0024] The X-axis is the advancing direction of the processing line and is used to determine the brush roll number.

[0025] The Y-axis is the horizontal direction of the processing line and is used to determine the brush roll receiving position or advancing position.

[0026] The Z-axis is the height direction of the processing line and is used to determine the brush roll loading and unloading position.

[0027] The brush rolls are divided into upper brush rolls and lower brush rolls. The upper brush rolls include Brush Roll No. 1, Brush Roll No. 3, Brush Roll No. 5 and Brush Roll No. 7, and the lower brush rolls include Brush Roll No. 2, Brush Roll No. 4, Brush Roll No. 6 and Brush Roll No. 8.

[0028] The precise, rapid, and automatic replacement of the brush roll means that the roll-changing trolley automatically moves to the position corresponding to the brush roll number to be replaced, then automatically controls the lifting device to the brush roll loading and unloading position, and finally controls the trolley to move forward to the brush roll receiving position to extract or install the brush roll.

[0029] The control scheme process provided by the present invention is as follows:

[0030] 1. Determine the brush roll number, establish the X-axis. A total of 8 coordinates are set on the X-axis corresponding to 8 brush roll numbers. Coordinate 1 represents Brush Roll No. 1, coordinate 2 represents Brush Roll No. 2, coordinate 3 represents Brush Roll No. 3, coordinate 4 represents Brush Roll No. 4, coordinate 5 represents Brush Roll No. 5, coordinate 6 represents Brush Roll No. 6, coordinate 7 represents Brush Roll No. 7, and coordinate 8 represents Brush Roll No. 8.

[0031] 2. Determine the brush roll receiving position, establish the Y-axis. 1 coordinate is set on the Y-axis. Coordinate 1 represents the brush roll receiving position or the pushing position, and the initial position of coordinate 0 represents the extraction of the brush roll.

[0032] 3. Determine the brush roll loading and unloading position, establish the Z-axis. 2 coordinates are set on the Z-axis. Coordinate 1 represents the lower brush roll loading and unloading position, and coordinate 2 represents the upper brush roll loading and unloading position.

[0033] 4. Establish a brush roll changing system, and set the logical relationship of the X-axis, Y-axis, and Z-axis coordinate systems as follows:

[0034] When the given X-axis coordinate is an odd coordinate, the Z-axis coordinate is automatically given coordinate 2, and the Y-axis coordinate is first automatically given coordinate 1. When the Y-axis reaches coordinate 1 and stays for 30 seconds, it then executes coordinate 0; when the given X-axis coordinate is an even coordinate, the Z-axis coordinate is automatically given coordinate 1, and the Y-axis coordinate is first automatically given coordinate 1. When the Y-axis reaches coordinate 1 and stays for 30 seconds, it then executes coordinate 0, and the timing ends.

[0035] 5. Connect the brush roll changing system to the HMI interface. The HMI interface can select the brush roll to be replaced and input the X-axis coordinate.

[0036] 6. Select the brush roll to be replaced on the HMI interface and execute the roll-changing operation.

[0037] 7. The roll-changing trolley first automatically runs to the position of the brush roll to be replaced.

[0038] 8. The lifting device automatically rises to the brush roll loading and unloading position.

[0039] 9. The roll-changing trolley runs to the brush roll receiving position and extracts the brush roll.

[0040] 10. Use the overhead crane to lift out the old brush roll, lift the new brush roll onto the roll-changing trolley, then the roll-changing trolley pushes in the new brush roll, and the roll-changing trolley returns to the initial position.

[0041] The above automatic brush roll replacement operation is completed.

[0042] The present invention is not limited to the above embodiments. Any person should be aware that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, all fall within the protection scope of the present invention.

[0043] The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A precise and efficient replacement method for the cleaning section brush roll, characterized in that, It includes the following steps: 1) Establish a brush roll changing coordinate system. Use the X-axis to determine the position of the brush roll number, the Y-axis as the brush roll receiving position or pushing position, and the Z-axis as the brush roll loading and unloading position; 2) Establish a brush roll changing system and set the logical relationships of the X-axis, Y-axis, and Z-axis coordinate systems: When the given X-axis coordinate is an odd coordinate, the Z-axis coordinate is automatically given the coordinate 2, the Y-axis coordinate is first automatically given the coordinate 1. When the Y-axis reaches the position of coordinate 1 and stays for 30 seconds, it then executes coordinate 0. When the given X-axis coordinate is an even coordinate, the Z-axis coordinate is automatically given the coordinate 1, the Y-axis coordinate is first automatically given the coordinate 1. When the Y-axis reaches the position of coordinate 1 and stays for 30 seconds, it then executes coordinate 0, and the timing ends; 3) Connect the brush roll changing system to the HMI interface. The HMI interface can select the brush roll to be replaced and input the X-axis coordinate; 4) Select the brush roll to be replaced on the HMI interface and execute the roll change operation; 5) The roll change trolley first automatically runs to the position of the brush roll to be replaced. The lifting device automatically rises to the brush roll loading and unloading position. The roll change trolley runs to the brush roll receiving position and pulls out the brush roll; 6) Lift out the old brush roll by the overhead crane, lift the new brush roll onto the roll change trolley, then the roll change trolley pushes in the new brush roll, the roll change trolley returns to the initial position, and the automatic brush roll replacement operation ends.

2. The precise and efficient replacement method of the cleaning section brush roll according to claim 1, characterized in that, In step 1), the X-axis is the forward direction of the processing line and is used to determine the brush roll number. A total of 8 coordinates are set on the X-axis corresponding to 8 brush roll numbers. Coordinate 1 represents brush roll No. 1, coordinate 2 represents brush roll No. 2, coordinate 3 represents brush roll No. 3, coordinate 4 represents brush roll No. 4, coordinate 5 represents brush roll No. 5, coordinate 6 represents brush roll No. 6, coordinate 7 represents brush roll No. 7, and coordinate 8 represents brush roll No.

8.

3. The precise and efficient replacement method of the cleaning section brush roll according to claim 1, characterized in that, In step 1), the Y-axis is the horizontal direction of the processing line and is used to determine the brush roll receiving position or pushing position. One coordinate is set on the Y-axis. Coordinate 1 represents the brush roll receiving position or pushing position, and the initial position of coordinate 0 represents the brush roll being pulled out.

4. The precise and efficient replacement method of the cleaning section brush roll according to claim 1, characterized in that In step 1), the Z-axis is the height direction of the processing line and is used to determine the brush roll loading and unloading position. Two coordinates are set on the Z-axis. Coordinate 1 represents the lower brush roll loading and unloading position, and coordinate 2 represents the upper brush roll loading and unloading position.

5. The method for accurately and efficiently replacing the cleaning section brush roll according to claim 4, characterized in that, The upper brush rolls include brush roll No. 1, brush roll No. 3, brush roll No. 5, and brush roll No.

7. The lower brush rolls include brush roll No. 2, brush roll No. 4, brush roll No. 6, and brush roll No. 8.

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