Method for replacing trimming shear blade for steel coil decoiling production line

Abstract

The invention discloses a method for replacing a trimming shear blade for a steel coil decoiling production line, which comprises the following steps of: 1, mounting two industrial cameras on the front side and the rear side of the reset position of the trimming shear blade by using a steel fixing frame for shooting pictures of the trimming shear blade; secondly, the cutting effect of the cutting face of the steel coil needs to be checked at fixed time and fixed points in the production process, problems are found in time if abnormity is found, and related departments are informed to replace the shear blades in time if the shear blades have problems; thirdly, before the trimming shear blades are replaced, the production line is closed firstly, and then a controller of the trimming shear blades is closed; and 4, checking the reset height of the current trimming shear blade by using a laser range finder, and erecting a video recorder beside the laser range finder for recording the whole replacement process of the trimming shear blade. The invention relates to the field of use of steel coil production equipment, in particular to a method for replacing a trimming shear blade for a steel coil decoiling production line.

Description

Technical Field

[0001] The invention relates to the application field of steel coil production equipment, and in particular to a method for replacing edge trimming shear blades used in a steel coil flattening production line. Background Art

[0002] Steel coils are formed into coils by hot pressing or cold pressing. In order to facilitate storage and transportation, and to facilitate various processing, they are mainly divided into hot-rolled coils and cold-rolled coils. Hot-rolled coils are processed products before the recrystallization of steel billets, and cold-rolled coils are the subsequent processing of hot-rolled coils.

[0003] The steel coil slitting production line is the core equipment for plate processing. Its trimming scissors are used to cut steel coils. If the blade is damaged or cannot meet production needs, it must be replaced. At present, the most common problems in the replacement process are prominent safety hazards, accidental start-up of the production line, excessive manual lifting weight, too many people, and accidental injuries.

[0004] The existing technology mainly relies on visual inspection by operators (twice per shift), but manual observation has subjective errors, and it is difficult to detect in time when microcracks or local wear appear on the blade.

[0005] There is also the problem analysis of waste blades, which is rarely involved, and it is impossible to achieve life prediction and fault tracing. However, after the technicians find and analyze the problems of waste blades, they can indirectly find the problems in the production process, and timely correction can increase the working life of the new blades. Summary of the invention

[0006] The technical problem to be solved by the present invention is that the abnormality of the scissor blades cannot be discovered in time, resulting in batch abnormalities in the product, safety hazards caused by replacing the scissor blades, and the problem of not detecting and re-discharging after replacing the scissor blades, resulting in the inability to improve the subsequent quality and life.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is as follows: The present invention is a method for replacing the trimming shear blades used in a steel coil flattening production line, comprising the following steps:

[0008] Step 1: Install two industrial cameras on the front and rear sides of the trimming scissors blade reset position using a steel fixing frame to capture images of the trimming scissors blade;

[0009] Step 2: During the production process, the cutting effect of the steel coil cutting surface needs to be checked regularly and at fixed points. If any abnormality is found, find the problem in time. If it is a problem with the scissor blade, inform the relevant department to replace it in time;

[0010] Step 3: Before replacing the trimming scissors, shut down the production line first, and then shut down the controller of the trimming scissors;

[0011] Step 4: Use a laser rangefinder to check the reset height of the current trimming scissors blade, and set up a video recorder to record the entire process of trimming scissors blade replacement;

[0012] Step 5: Clear out the surrounding unrelated personnel and bring in the new trimming scissors blades that need to be replaced. Park the crane on both sides, and the staff will remove the old trimming scissors blades and replace them with new ones;

[0013] Step 6: Record in detail the supplier, production time, inventory time of the new trimming scissors blades, and record the first use time and product batch;

[0014] Step 7: The old trimming scissors blades are transported to the laboratory, where staff will check for damage and verify the length of use.

[0015] Furthermore, after the trimming scissors blade described in step 1 is reset every 5-10 times, the industrial camera takes a picture and determines the blade wear level through the image analysis algorithm. If the threshold is reached, the replacement process is triggered.

[0016] Furthermore, the production line shutdown and controller shutdown process described in step three must be participated by more than two people, one person shuts down and one person checks, and there must be document records.

[0017] Furthermore, the camera installation position described in step 4 should not only record the replacement process, but also capture the entire work process of each staff member into the screen for safety reasons.

[0018] Furthermore, all the usage information of the old trimming scissors blades in step seven needs to be compared with the data of the trimming scissors blades replaced before, and if the service life is reduced, the specific reason needs to be found.

[0019] The beneficial effects achieved by the present invention using the above structure are as follows:

[0020] 1. Accurate abnormal warning can avoid batch quality accidents. The dual-station industrial camera combined with the image recognition model can detect the edge breakage and wear of the trimming scissors in real time. When the trimming scissors are abnormal, the sound and light alarm is triggered, which is several times more efficient than traditional manual inspections. Reduce the probability of abnormal batch products.

[0021] 2. Operation safety is standardized to reduce the risk of man-made accidents. The laser rangefinder and lifting system ensure that there is no collision risk during the removal process of the trimming scissors.

[0022] 3. Laboratory-level failure analysis can accurately locate the main cause of wear, or provide feedback to suppliers to improve heat treatment processes, increase product life, reduce costs, and improve product quality. DETAILED DESCRIPTION

[0023] Example 1

[0024] The present invention is a method for replacing trimming shear blades for a steel coil flattening production line, comprising the following steps:

[0025] Step 1: Install two industrial cameras on the front and rear sides of the trimming scissors blade reset position using a steel fixing frame to capture images of the trimming scissors blade. After the trimming scissors blade is reset every 5 times, the industrial camera captures the image once and determines the blade wear level through an image analysis algorithm. If the threshold is reached, the replacement process is triggered.

[0026] Step 2: During the production process, the cutting effect of the steel coil cutting surface needs to be checked regularly and at fixed points. If any abnormality is found, find the problem in time. If it is a problem with the scissor blade, inform the relevant department to replace it in time;

[0027] Step 3: Before replacing the trimming scissors, shut down the production line first, and then shut down the controller of the trimming scissors. The process of shutting down the production line and the controller must be participated by more than two people, one person shuts down and the other checks, and there must be document records;

[0028] Step 4: Use a laser rangefinder to check the reset height of the current trimming scissors blade, and set up a video recorder on the side to record the entire process of replacing the trimming scissors blade. The camera should not only record the replacement process, but also capture the entire work process of each staff member for safety reasons.

[0029] Step 5: Clear out the surrounding unrelated personnel and bring in the new trimming scissors blades that need to be replaced. Park the crane on both sides, and the staff will remove the old trimming scissors blades and replace them with new ones;

[0030] Step 6: Record in detail the supplier, production time, inventory time of the new trimming scissors blades, and record the first use time and product batch;

[0031] Step seven: The old trimming scissors blades are transported to the laboratory, where staff will check for damage and usage time. All usage information of the old trimming scissors blades needs to be compared with the data of the previously replaced trimming scissors blades. If the service life is reduced, the specific reason needs to be found.

[0032] Example 2

[0033] The present invention is a method for replacing trimming shear blades for a steel coil flattening production line, comprising the following steps:

[0034] Step 1: Install two industrial cameras on the front and rear sides of the trimming scissors blade reset position using a steel fixing frame to capture images of the trimming scissors blade. After the trimming scissors blade is reset every 8 times, the industrial camera captures the image once and determines the blade wear level through an image analysis algorithm. If the threshold is reached, the replacement process is triggered.

[0035] Step 2: During the production process, the cutting effect of the steel coil cutting surface needs to be checked regularly and at fixed points. If any abnormality is found, find the problem in time. If it is a problem with the scissor blade, inform the relevant department to replace it in time;

[0036] Step 3: Before replacing the trimming scissors, shut down the production line first, and then shut down the controller of the trimming scissors. The process of shutting down the production line and the controller must be participated by more than two people, one person shuts down and the other checks, and there must be document records;

[0037] Step 4: Use a laser rangefinder to check the reset height of the current trimming scissors blade, and set up a video recorder on the side to record the entire process of replacing the trimming scissors blade. The camera should not only record the replacement process, but also capture the entire work process of each staff member for safety reasons.

[0038] Step 5: Clear out the surrounding unrelated personnel and bring in the new trimming scissors blades that need to be replaced. Park the crane on both sides, and the staff will remove the old trimming scissors blades and replace them with new ones;

[0039] Step 6: Record in detail the supplier, production time, inventory time of the new trimming scissors blades, and record the first use time and product batch;

[0040] Step seven: The old trimming scissors blades are transported to the laboratory, where staff will check for damage and usage time. All usage information of the old trimming scissors blades needs to be compared with the data of the previously replaced trimming scissors blades. If the service life is reduced, the specific reason needs to be found.

[0041] Example 3

[0042] The present invention is a method for replacing trimming shear blades for a steel coil flattening production line, comprising the following steps:

[0043] Step 1: Install two industrial cameras on the front and rear sides of the trimming scissors blade reset position using a steel fixing frame to capture images of the trimming scissors blade. After the trimming scissors blade is reset every 10 times, the industrial camera captures the image once and determines the blade wear level through an image analysis algorithm. If the threshold is reached, the replacement process is triggered.

[0044] Step 2: During the production process, the cutting effect of the steel coil cutting surface needs to be checked regularly and at fixed points. If any abnormality is found, find the problem in time. If it is a problem with the scissor blade, inform the relevant department to replace it in time;

[0045] Step 3: Before replacing the trimming scissors, shut down the production line first, and then shut down the controller of the trimming scissors. The process of shutting down the production line and the controller must be participated by more than two people, one person shuts down and the other checks, and there must be document records;

[0046] Step 4: Use a laser rangefinder to check the reset height of the current trimming scissors blade, and set up a video recorder on the side to record the entire process of replacing the trimming scissors blade. The camera should not only record the replacement process, but also capture the entire work process of each staff member for safety reasons.

[0047] Step 5: Clear out the surrounding unrelated personnel and bring in the new trimming scissors blades that need to be replaced. Park the crane on both sides, and the staff will remove the old trimming scissors blades and replace them with new ones;

[0048] Step 6: Record in detail the supplier, production time, inventory time of the new trimming scissors blades, and record the first use time and product batch;

[0049] Step seven: The old trimming scissors blades are transported to the laboratory, where staff will check for damage and usage time. All usage information of the old trimming scissors blades needs to be compared with the data of the previously replaced trimming scissors blades. If the service life is reduced, the specific reason needs to be found.

[0050] This method has made a leap in quality control: the response time of blade abnormality has been shortened to less than 5 minutes, and the rate of excessive burrs on the cut has been reduced from 0.15%, avoiding annual quality losses of 1.5 million yuan;

[0051] Safety efficiency doubled: through double-person verification + intelligent monitoring, zero accidents were achieved for several consecutive months, and insurance costs were reduced by 60%;

[0052] Optimized resource utilization: the average blade life is increased.

[0053] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for replacing trimming shear blades for a steel coil flattening production line, characterized in that: The steps include: Step 1: Install two industrial cameras on the front and rear sides of the trimming scissors blade reset position using a steel fixing frame to capture images of the trimming scissors blade; Step 2: During the production process, the cutting effect of the steel coil cutting surface needs to be checked regularly and at fixed points. If any abnormality is found, find the problem in time. If it is a problem with the scissor blade, inform the relevant department to replace it in time; Step 3: Before replacing the trimming scissors, shut down the production line first, and then shut down the controller of the trimming scissors; Step 4: Use a laser rangefinder to check the reset height of the current trimming scissors blade, and set up a video recorder to record the entire process of trimming scissors blade replacement; Step 5: Clear out the surrounding unrelated personnel and bring in the new trimming scissors blades that need to be replaced. Park the crane on both sides, and the staff will remove the old trimming scissors blades and replace them with new ones; Step 6: Record in detail the supplier, production time, inventory time of the new trimming scissors blades, and record the first use time and product batch; Step 7: The old trimming scissors blades are transported to the laboratory, where staff will check for damage and verify the length of use.

2. The method for replacing trimming shear blades for a steel coil flattening production line according to claim 1, characterized in that: After the trimming scissors blade described in step 1 is reset every 5-10 times, the industrial camera takes a picture and determines the blade wear level through the image analysis algorithm. If the threshold is reached, the replacement process is triggered.

3. The method for replacing trimming shear blades for a steel coil flattening production line according to claim 1, characterized in that: The production line shutdown and controller shutdown process described in step three must be participated by more than two people, one person shuts down and one person checks, and there must be document records.

4. The method for replacing trimming shear blades for a steel coil flattening production line according to claim 1, characterized in that: The camera installation position described in step 4 should not only record the replacement process, but also capture the entire work process of each staff member into the screen for safety reasons.

5. The method for replacing trimming shear blades for a steel coil flattening production line according to claim 1, characterized in that: All the usage information of the old trimming scissors blades described in step 7 needs to be compared with the data of the trimming scissors blades replaced before. If the service life is reduced, the specific reason needs to be found.