Deviation adjusting method for horizontal loop strip steel roller system
By checking and dynamically adjusting the horizontality and verticality of the horizontal and verticality of the horizontal swing strip roller system, the problem of strip deviation is solved, the adjustment cycle is shortened, and the adjustment efficiency and effect are improved.
Patent Information
- Application Number
- CN202411966186.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-05-13
AI Technical Summary
Horizontal sling strips are prone to deviation in cold-rolled treatment lines and silicon steel treatment lines, resulting in slowing down and yield reduction. The existing adjustment methods are statically adjusted, with a long cycle and difficult to verify in time.
By checking the six reasons for the strip steel to deviate item by item, and adjusting it at the manufacturing plant or construction site, dynamic adjustment method is adopted to gradually adjust the horizontality and verticality of the live-car roller and roller trolley to ensure that the strip steel to deviate within a reasonable range.
The adjustment cycle is shortened, unnecessary strip extraction operations are reduced, real-time verification of the adjustment effect is achieved, and the probability of rework is reduced.
Smart Images
Figure CN119972831A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of material conveying equipment, in particular to a deviation adjustment method for a horizontal looper strip steel roller system. Background Art
[0002] For cold rolling processing lines and silicon steel processing lines, horizontal looper strip deviation is a long-standing problem, especially in silicon steel processing lines where the strip is relatively thin (the thickness of oriented silicon steel finished products ranges from 0.15mm to 0.35mm, and the thickness of non-oriented silicon steel finished products ranges from 0.15mm to 0.65mm), and the horizontal looper structure is relatively complex. The speed reduction and production reduction caused by the strip deviation have always been a problem that has plagued equipment and production parties.
[0003] The following is an example of a hot stretching and leveling unit for oriented silicon steel.
[0004] 1. Current situation of the deviation of the looper strip After repeated observations to eliminate the effects of the strip's sickle bend, poor plate shape, etc., the correction amount of the correcting rollers 6#CPC, 7#CPC, and 8#CPC (tentative numbering, the numbers of different units are slightly different) related to the loop entry and exit exceeded 50mm, and the 1#-5# rollers on the loop car had obvious DS side deviation at both the empty and full ends. This phenomenon is relatively solidified, and the correcting rollers are already in the roll-out alarm state. The strip still cannot achieve the correction goal, and the roller system needs to be adjusted to achieve the purpose of correcting the strip.
[0005] 2. Analysis of the causes of strip deviation in the looper This horizontal looper consists of the following equipment: 1 looper car (5 rollers), mobile roller trolley (15 sets), ground rollers (11), deviation correction rollers (3 sets), etc. The structure is relatively complex, and the normal operation state is low-speed charging and discharging. The most troublesome thing during the operation of the looper is the deviation of the strip. Under normal production conditions, the production party requires that the deviation values of the 3 sets of deviation correction rollers and the 5 looper rollers on the looper car are controlled within 50mm, or the deviation value is lower; The following reasons may cause the strip to deviate: 1. The horizontality and verticality between the five rollers on the looper are inconsistent, with large deviations; 2. The horizontality and verticality between the upper and lower 5 rollers of the mobile roller trolley are inconsistent, with large deviations; 3. The horizontality and verticality of the loop track are inconsistent during installation, with large deviations; 4. The horizontality and verticality of the ground roller during installation are inconsistent, with large deviations; 5. The clearance between the guide wheels of the looper and the guide wheels of the roller trolley should be controlled within 2mm on both sides. The actual deviation is too large. 6. Other reasons, such as the strip steel shape of the unit is not good.
[0006] Disadvantages of the existing technology: The traditional method of adjusting the deviation of the strip in the loop is a static adjustment. The loop must be pulled out before the roller system can be adjusted. In this way, the loop is pulled out - the roller system is adjusted - and the strip is put on again for verification. If it fails, it must be repeated once or multiple times. The traditional adjustment method is laborious and may not necessarily achieve good results. The adjustment cycle is long, the effect after adjustment cannot be verified in time, and the probability of rework is high. Summary of the invention
[0007] In order to overcome the defects of the prior art and provide a conveying equipment adjustment method with convenient adjustment and improved efficiency, the present invention discloses a deviation adjustment method for a horizontal looping strip steel roller system.
[0008] The present invention achieves the purpose of the invention through the following technical solutions: A method for adjusting the deviation of a horizontal looper strip steel roller system is characterized by: performing the following steps in sequence: S1: Check the following items i~vi one by one: i. Check whether the horizontality and verticality between the five rollers on the looper are inconsistent or the deviation is large. ii. Check whether the horizontality and verticality between the five upper and lower rollers of the roller trolley are inconsistent or whether the deviation is large. iii. Check whether the horizontality and verticality of the loop track are inconsistent during installation, or whether the deviation is large. iv. Check whether the horizontality and verticality of the ground roller are inconsistent during installation, or whether the deviation is large. v. Whether the clearance of the guide wheels of the looper and the guide wheels of the roller trolley are controlled within 2mm on both sides, and whether the actual deviation is too large, vi. Other reasons, including whether the strip steel profile of the unit is not good; The steps for adjusting the strip deviation are as follows: Check the six reasons for the strip deviation in the looper one by one, and try to install the equipment in the best condition; S2: Adjustment: i and ii are completed in the factory or adjusted at the construction site. The assembly quality of the looper roller and the idler roller is qualified. Sampling inspection is not allowed, but all inspections are required. iii~v Check at the construction site. The assembly quality of the track and the looper roller must be qualified. Increase the inspection density. If there is no problem with the equipment status, but the strip steel still deviates regularly in one direction, take the following measures: S3: Readjustment: S3.1: First make slight adjustments to the looper to see the deviation effect; S3.2: If it doesn’t work, first center the deviation correction rollers at the entrance of the looper, and adjust the looper rollers according to the forward order of the strip. Adjust the rollers on the roller trolley based on the vertical center to the direction where the strip needs to be corrected. Adjust to the left for left deviation correction and to the right for right deviation correction. Note that the adjustment should be made when the loop is empty first, then adjusted to the middle position when the loop is filled, and finally adjusted when the loop is full. First adjust the 1# looper roller, and after the strip deviation is balanced, the car drives over the 2# looper roller. After running for a period of time and balancing, the car drives over the 3# looper roller. Repeat this process until all the looper rollers are adjusted to achieve the purpose of deviation correction. S3.3: After the strip deviation of the 1# slinger roller of the slinger is adjusted, the 2#, 3#, 4#, and 5# slinger rollers are adjusted in sequence. The deviation correction is achieved by adjusting the roller trolley. The end pressure plate of each bearing seat of the roller bracket is provided with a long hole. All roller brackets are adjusted separately according to the empty set-half set-full set, so that the strip deviation on the 2#, 3#, 4#, and 5# slinger rollers is corrected; S3.4: After all the internal deviation-correcting rollers of the loop are put into automatic operation, the deviation of the deviation-correcting rollers and the loop rollers are within a reasonable range, and the deviation of the loop is acceptable regardless of whether it is empty, full, or in any position in between.
[0009] The deviation adjustment method for a horizontal looper strip steel roller system is characterized by: In step S3.3, there are fifteen sets of roller brackets; In step S3.4, the deviation of the deviation-correcting roller and the looper roller is no more than 50 mm.
[0010] The present invention has the following beneficial effects: 1. Short debugging cycle: The traditional static horizontal looper strip deviation adjustment method generally takes more than one month; compared with the traditional adjustment method, the new method can control the adjustment cycle within 5 days.
[0011] 2. No need to pull out the strip: The traditional static horizontal loop strip deviation adjustment method requires the loop or the entire unit to pull out the strip, wasting a lot of time and human resources. After the adjustment, the strip must be re-threaded for operation verification. Compared with the traditional adjustment method, the new method is a dynamic adjustment and does not require the strip to be pulled out.
[0012] 3. The debugging effect can be verified immediately: The traditional static horizontal loop strip deviation adjustment method requires the strip to be re-threaded before the adjustment effect can be verified; compared with the traditional adjustment method, the new method is a dynamic adjustment, and the effect can be verified immediately at any time. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a left view of the roller trolley in the present invention, Figure 2 is a schematic diagram of the roller trolley running on the track in the present invention, Figure 3 It is a schematic diagram of adjusting the gap between the guide wheel on the side of the roller trolley and the track in the present invention. Figure 4 It is a schematic diagram of adjustment of the looper in the present invention. DETAILED DESCRIPTION
[0014] The present invention is further illustrated by the following specific examples. Example
[0015] A method for adjusting the deviation of a horizontal looping strip steel roller system, wherein the roller trolley 2 is Figure 1 to Figure 3 As shown in the figure: the roller trolley 1 comprises a roller 21, a roller bracket 22, a bearing 23, a pressure plate 24 and a roller frame 25. The roller trolley 2 is composed of the roller frame 25 to form a vehicle body. A roller bracket 22 is fixed on both sides of the roller frame 25. Both ends of the roller 21 are rotatably arranged in one roller frame 25 through bearings 23. Both ends of the roller 21 are covered with a pressure plate 24. The side guide wheels of the roller trolley 1 are as follows Figure 4 As shown: A roller bracket 22 is fixed to the left and right sides of one side of the roller frame 25 with bracket bolts 31 respectively. The eccentric shaft 32 is inserted into the roller bracket 22. The lower part of the eccentric shaft 32 is rotatably mounted with a guide wheel 33 through a bearing 38. The bottom end of the eccentric shaft 33 is rotatably covered with a pressure plate 34. The pressure plate 34 is fixed to the guide wheel 33 by a hexagon socket bolt 35, a locking nut 36 and a stop washer 37.
[0016] like Figure 1 to Figure 4 As shown: Follow the steps below: S1: Check the following items i~vi one by one: i. Whether the horizontality and verticality between the five rollers 11 on the looper 1 are inconsistent or whether the deviation is large, ii. Check whether the horizontality and verticality between the five upper and lower rollers 21 of the roller trolley 2 are inconsistent or whether the deviation is large. iii. Check whether the horizontality and verticality of the loop track are inconsistent during installation, or whether the deviation is large. iv. Check whether the horizontality and verticality of the ground roller (4) are inconsistent during installation, or whether the deviation is large. v. Whether the clearance of the guide wheels of the looper 1 and the guide wheels of the roller trolley 2 are both controlled within 2mm, and whether the actual deviation is too large, vi. Other reasons, including whether the strip steel profile of the unit is not good; The steps for adjusting the strip deviation are as follows: Check the six reasons for the strip deviation in the looper one by one, and try to install the equipment in the best condition; S2: Adjustment: i and ii are completed in the manufacturing plant or adjusted at the construction site. The assembly quality of the looper roller 11 and the idler roller 21 is qualified. Sampling inspection is not allowed, but all inspections are required; iii~v Check at the construction site, the assembly quality of the track and the looper roller 11 must be qualified, and the inspection density should be increased. If there is no problem with the equipment status, but the strip steel still deviates regularly in one direction, take the following measures: S3: Readjustment: S3.1: If Figure 4 As shown: First, slightly adjust the looper 1 to see the deviation effect; S3.2: If it does not work, first center the deviation correction roller at the entrance of the looper, and adjust the looper roller 11 according to the forward order of the strip. The roller 21 on the roller trolley 2 should be adjusted to the direction where the strip needs to be corrected based on the vertical center. For left deviation correction, adjust it to the left, and for right deviation correction, adjust it to the right. Note that it should be adjusted when the loop is empty first, then adjusted to the middle position when the loop is filled, and finally adjusted when the loop is full. First adjust the 1# looper roller 11, and after the strip deviation is balanced, the car drives over the 2# looper roller 11. After running for a period of time and balancing, the car drives over the 3# looper roller 11. Repeat this until all the looper rollers 11 are adjusted to achieve the purpose of deviation correction. S3.3: If Figure 1 As shown: there are fifteen sets of roller brackets 22. After the strip steel deviation of the sling car 11# sling car roller 11 is adjusted, Figure 4 As shown in the figure, the 2#, 3#, 4#, and 5# looper rollers 11 are adjusted in sequence, and the deviation correction is achieved by adjusting the roller trolley 2, as shown in the figure. Figure 1 As shown: the end pressure plate 24 of each bearing seat 23 of the fifteen sets of roller brackets 22 is provided with a long hole, and all roller brackets 22 are adjusted separately according to the empty set-half set-full set, so as to realize the deviation correction of the strip on the 2#, 3#, 4#, and 5# looper rollers 11; S3.4: After all the internal deviation-correcting rollers of the looper are put into automatic operation, the deviation of the deviation-correcting rollers and the looper roller 11 is within a reasonable range, and the deviation of the looper is qualified whether it is empty, full, or in any position in the middle. Figure 4 As shown: the deviation of the deviation correction roller and the looper roller 11 is no more than 50mm.
Claims
1. A method for adjusting the deviation of a horizontal looper strip steel roller system, characterized by: Follow the steps below to implement: S1: Check the following contents i~vi one by one: i. Check whether the horizontality and verticality between the five rollers (11) on the looper (1) are inconsistent or whether the deviation is large. ii. Check whether the horizontality and verticality between the upper and lower five rollers (21) of the roller trolley (2) are inconsistent or whether the deviation is large. iii. Check whether the horizontality and verticality of the loop track are inconsistent during installation, or whether the deviation is large. iv. Check whether the horizontality and verticality of the ground roller are inconsistent during installation, or whether the deviation is large. v. Check whether the clearance between the guide wheels of the looper (1) and the guide wheels of the roller trolley (2) are both within 2 mm, or whether the actual deviation is too large. vi. Other reasons, including whether the strip steel profile of the unit is not good; The steps for adjusting the strip deviation are as follows: Check the six reasons for the strip deviation in the looper one by one, and try to install the equipment in the best condition; S2: Adjustment: i and ii are completed in the factory or adjusted at the construction site. The assembly quality of the looper roller (11) and the idler roller (21) is qualified. Sampling inspection is not allowed, but all inspections are required; iii~v Check at the construction site. The assembly quality of the track and the looper roller (11) must be qualified. Increase the inspection frequency. If there is no problem with the equipment status, but the strip still deviates regularly in one direction, take the following measures: S3: Readjustment: S3.1: First, slightly adjust the looper (1) to see the deviation effect; S3.2: If it does not work, first align the deviation correction rollers at the entrance of the looper, and adjust the looper rollers (11) according to the forward order of the strip. The rollers (21) on the roller trolley (2) are adjusted to the direction in which the strip needs to be corrected, based on the vertical center. For left deviation correction, adjust to the left, and for right deviation correction, adjust to the right. Note that the adjustment should be made when the loop is empty, then adjusted to the middle position, and finally adjusted when the loop is full. First adjust the 1# looper roller (11), and after the strip deviation is balanced, the car drives over the 2# looper roller (11). After running for a period of time and balancing, the car drives over the 3# looper roller (11). Repeat this process until all the looper rollers (11) are adjusted to achieve the purpose of deviation correction. S3.3: After the strip deviation of the 1# slinger roller (11) of the looper (1) is adjusted, the 2#, 3#, 4#, and 5# slinger rollers (11) are adjusted in sequence, and the deviation correction is achieved by adjusting the roller trolley (2). The end pressure plate (24) of each bearing seat (23) of the roller bracket (22) is provided with a long hole, and all the roller brackets (22) are adjusted separately according to the empty set-half set-full set, so that the strip deviation on the 2#, 3#, 4#, and 5# slinger rollers (11) is corrected; S3.4: After all the internal deviation-correcting rollers of the looper are put into automatic operation, the deviation of the deviation-correcting rollers and the looper rollers (11) are within a reasonable range, and the deviation of the looper is acceptable regardless of whether it is empty, full, or in any position in between.
2. The method for adjusting the deviation of a horizontal looper strip steel roller system according to claim 1, characterized in that: In step S3.3, there are fifteen sets of roller brackets (22); In step S3.4, the deviation of the deviation-correcting roller and the looper roller (11) is no more than 50 mm.