CN112893514A - Method for adjusting levelness of lower pinch roll of coiler and controller - Google Patents
Method for adjusting levelness of lower pinch roll of coiler and controller Download PDFInfo
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- CN112893514A CN112893514A CN202110045600.XA CN202110045600A CN112893514A CN 112893514 A CN112893514 A CN 112893514A CN 202110045600 A CN202110045600 A CN 202110045600A CN 112893514 A CN112893514 A CN 112893514A
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004590 computer program Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 39
- 239000010959 steel Substances 0.000 abstract description 39
- 230000007547 defect Effects 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 17
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
- B21C47/3433—Feeding or guiding devices not specially adapted to a particular type of apparatus for guiding the leading end of the material, e.g. from or to a coiler
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Abstract
The invention provides a method for adjusting levelness of a lower pinch roll of a coiling machine, which comprises the following steps: detecting the levelness of the lower pinch roll; obtaining a first levelness of the lower pinch roll by adjusting the heights of the gaskets of the bearing seats at the two sides of the lower pinch roll; controlling the upper pinch roll to press against the lower pinch roll; detecting the levelness of the lower pinch roll after being pressed to obtain a second levelness; and calibrating the lower pinch roll according to the second levelness. The gap of the gasket is compressed by simulating the steel passing working state of the coiling machine through the method, so that the influence of the gap of the gasket on the levelness of the lower pinch roll is ignored, the gasket is not required to be adjusted frequently in the follow-up process after the levelness of the lower pinch roll is calibrated, the situation that the height of the gasket is determined directly according to the levelness deviation is avoided, the gap of the gasket is changed when the steel passing working state is carried out, the levelness of the lower pinch roll is not in accordance with the working requirement, the tower-shaped defect of the steel coil is caused, the working efficiency and the machining precision are improved, and the machining cost is saved.
Description
Technical Field
The invention relates to a technology for adjusting levelness of a lower pinch roll of a coiling machine, in particular to a method and a controller for adjusting levelness of a lower pinch roll of a coiling machine.
Background
In the metallurgical industry, a pinch roll of a hot rolling coiler is important equipment for controlling the coil shape of a steel coil, when the levelness of the lower pinch roll is abnormal, coil defects such as an inner tower and an outer tower of the steel coil can occur, the steel coil with the tower-shaped defect needs to be leveled, the subsequent treatment process of the defective steel coil increases the production cost, and the production progress is delayed. At present, the levelness of the lower pinch roll is mostly adjusted by increasing and decreasing gaskets below bearing seats on two sides of the lower pinch roll, but after the work is carried out for a short time, the levelness is abnormal again, the levelness adjustment needs to be carried out again, and the heights of the gaskets on two sides need to be calibrated, so that time and labor are wasted, and the production progress is delayed.
Disclosure of Invention
The embodiments of the present invention are directed to solving at least one of the technical problems occurring in the prior art or the related art.
Therefore, the invention aims to provide a method for adjusting the levelness of the lower pinch roll of the coiler.
Another object of an embodiment of the present invention is to provide a controller for controlling the steps of the adjusting method of the levelness of the lower pinch roll of the coiler.
In order to achieve the above object, a first aspect of the present invention provides a method for adjusting levelness of a lower pinch roll of a coiler, including:
detecting the levelness of the lower pinch roll; adjusting the levelness of the lower pinch roll to obtain a first levelness; controlling the upper pinch roll to press against the lower pinch roll; detecting the levelness of the lower pinch roll after being pressed to obtain a second levelness; and calibrating the lower pinch roll according to the second levelness.
In addition, the method for adjusting the levelness of the lower pinch roll of the coiler provided by the embodiment of the invention can also have the following additional technical characteristics:
in one technical scheme of the invention, before detecting the levelness of the lower pinch roll, the method comprises the following steps: and controlling the upper pinch roll to move to the unloading position.
In one technical scheme of the invention, the lower pinch roll is provided with a transmission side and an operation side, the transmission side and the operation side are both provided with a gasket, and the levelness of the lower pinch roll is adjusted to obtain a first levelness, and the method comprises the following steps: the levelness of the lower pinch roll is adjusted by adjusting the height of the shim at the transmission side to obtain a first levelness.
In one technical scheme of the invention, before controlling the upper pinch roll to press against the lower pinch roll, the method comprises the following steps: and controlling the upper pinch roll to move to the working position.
In one technical scheme of the invention, the step of controlling the upper pinch roll to press against the lower pinch roll comprises the following steps: and controlling the upper pinch roll to apply pressure to the lower pinch roll, wherein the pressure is 20KN to 90 KN.
In one technical scheme of the invention, the method for controlling the upper pinch roll to press against the lower pinch roll further comprises the following steps: the pressure is adjusted at predetermined intervals, wherein the predetermined time is 5s to 10 s.
In one technical scheme of the invention, the method for controlling the upper pinch roll to press against the lower pinch roll further comprises the following steps: and controlling the upper pinch roll and the lower pinch roll to rotate at the same rotating speed, wherein the rotating speed is 3m/s to 6 m/s.
In one technical scheme of the invention, the method for controlling the upper pinch roll to press against the lower pinch roll further comprises the following steps: the rotation speed is adjusted at predetermined intervals.
In an embodiment of the present invention, before calibrating the lower pinch roll according to the second levelness, the method further includes: and judging whether the second levelness needs to be adjusted, and if so, adjusting the levelness of the lower pinch roll again.
The technical scheme of the second aspect of the invention provides a controller, which comprises a memory and a processor, and is characterized in that the processor is used for realizing the steps of the method for adjusting the levelness of the lower pinch roll of the coiler when executing the computer program stored in the memory.
Compared with the prior art, the invention at least comprises the following beneficial effects:
the invention provides a method for adjusting levelness of a lower pinch roll of a coiling machine, which comprises the following steps: detecting the levelness of the lower pinch roll; obtaining a first levelness of the lower pinch roll by adjusting the heights of the gaskets of the bearing seats on the two sides of the lower pinch roll; controlling the upper pinch roll to press against the lower pinch roll; detecting the levelness of the lower pinch roll after being pressed to obtain a second levelness; and calibrating the lower pinch roll according to the second levelness. The method is used for simulating the working state of the recoiling machine when steel passes to compress the gap of the gasket until the influence on the levelness of the lower pinch roll is negligible; and then, detecting the levelness of the lower pinch roll padded with the compressed gasket, calibrating the levelness of the lower pinch roll if the levelness of the lower pinch roll meets the steel passing working state of the coiling machine, and repeating the detection and subsequent working steps of the levelness of the lower pinch roll after filling the gasket according to the gap again if the levelness of the lower pinch roll does not meet the steel passing working state of the coiling machine until the levelness of the lower pinch roll meets the steel passing working state of the coiling machine, and calibrating the levelness of the lower pinch roll again. The method is adopted to adjust the levelness of the lower pinch roll, the subsequent frequent adjustment of the gasket is not needed, the situation that the levelness of the lower pinch roll does not accord with the working requirement and the tower-shaped defect of the steel coil is caused because the height of the gasket is directly determined according to the levelness deviation and the gap of the gasket is changed when the steel is in a working state is avoided, so that the working efficiency and the machining precision are improved, and the machining cost is saved.
Other advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic flow diagram of a method for adjusting the levelness of a lower pinch roll of a coiler according to an embodiment of the present invention;
FIG. 2 illustrates a structural schematic of one direction of a coiler provided according to an embodiment of the present invention;
FIG. 3 shows a schematic view of another orientation of a coiler according to an embodiment of the present invention;
FIG. 4 shows a schematic diagram of a lower pinch roll shim position provided in accordance with an embodiment of the present invention.
Fig. 5 shows a schematic block diagram of a controller according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 2 to 4 is:
1 upper pinch roll, 2 lower pinch roll, 31 operation side bearing seat, 32 transmission side bearing seat,
4 gaskets, 5 bearing block locking devices, 6 backing plates and 7 frames
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
After the lower pinch roll 2 of the existing coiling machine is used for a period of time, due to reasons such as abrasion, the levelness of the lower pinch roll 2 can generate deviation, a plurality of gaskets 4 are generally selected to be filled according to gaps between bearing seats on two sides of the lower pinch roll 2 and a rack 7, after the gaskets 4 are filled, the levelness of the lower pinch roll 2 is measured, if the working state of the coiling machine passing steel is met, the parallelism at the time is calibrated, however, through the parallelism calibrated by the method, the produced steel coil can generate a tower-shaped defect within a short period of time when the coiling machine works, the parallelism is changed, the requirement of the working state of the coiling machine passing steel cannot be met, the gaskets 4 need to be frequently adjusted, and the working efficiency is influenced.
Through a large amount of researches on the phenomenon, the size of the gap between the bearing seats on the two sides of the lower pinch roll 2 and the rack 7 is usually filled with a plurality of gaskets 4 with different thicknesses, but gaps exist among a plurality of gaskets 4, the used quantity of the gaskets 4 is more, the total gap of the gaskets 4 is larger, when the coiler is in a steel passing working state, the upper pinch roll 1 presses the lower pinch roll 2, the generated pressure can compress the gap of the gaskets 4, the height of the gaskets 4 is further reduced, the gap between the bearing seats on the two sides of the lower pinch roll 2 and the rack 7 cannot be filled, the levelness of the lower pinch roll 2 is deviated again, and the produced steel coil has tower-shaped defects.
In order to improve the above situation, in an embodiment of the present invention, there is provided a method for adjusting the levelness of the lower pinch roll 2 of the coiler, wherein the coiler is structured as shown in fig. 2 and 3, and the position of the shim 4 is shown in fig. 4, with reference to fig. 1, the method comprises: s610 to S650.
S610, detecting the levelness of the lower pinch roll 2;
s620, adjusting the levelness of the lower pinch roll 2 to obtain a first levelness;
s630, controlling the upper pinch roll 1 to press the lower pinch roll 2;
s640, detecting the levelness of the lower pinch roll 2 after being pressed against the lower pinch roll to obtain a second levelness;
and S650, calibrating the lower pinch roll 2 according to the second levelness.
The method considers that if no gap exists between the gaskets 4, the height of the gaskets 4 cannot be changed, and further the levelness of the lower pinch roll 2 cannot be deviated, so that a proper amount of the gaskets 4 are placed in gaps between bearing seats on two sides of the lower pinch roll 2 and the rack 7, the upper pinch roll 1 is closed to a working position, no strip steel is placed, the gap of the gaskets 4 is compressed by simulating the working state of passing steel of the coiling machine, levelness measurement is carried out on the lower pinch roll 2 after the gaskets 4 are compressed, if the working state of passing steel of the coiling machine is not met, filling is repeated, the gaskets 4 are compressed until the working state of passing steel of the coiling machine is met, and calibration is carried out again by the levelness at the moment, and the technical problem that the gaskets 4 are frequently replaced is well solved.
In this embodiment, the method for adjusting the levelness of the lower pinch roll 2 of the coiler comprises the following steps: detecting the levelness of the lower pinch roll 2; the first levelness of the lower pinch roll 2 is obtained by adjusting the height of the gaskets 4 of the bearing seats on the two sides of the lower pinch roll 2; controlling the upper pinch roll 1 to press the lower pinch roll 2; detecting the levelness of the lower pinch roll 2 after being pressed to obtain a second levelness; and calibrating the lower pinch roll 2 according to the second levelness. The method is used for simulating the working state of the recoiling machine passing steel to compress the gap of the gasket 4, and the gap of the gasket 4 is compressed to the extent that the influence on the levelness of the lower pinch roll 2 can be ignored; and then, detecting the levelness of the lower pinch roll 2 padded with the compressed gasket 4, calibrating the levelness of the lower pinch roll 2 if the levelness of the lower pinch roll 2 meets the steel passing working state of the coiling machine, and repeating the detection and subsequent working steps of the levelness of the lower pinch roll 2 after filling the gasket 4 according to the gap again if the levelness of the lower pinch roll 2 does not meet the steel passing working state of the coiling machine until the levelness of the lower pinch roll 2 meets the steel passing working state of the coiling machine, and calibrating the levelness of the lower pinch roll 2 again. The method is adopted to adjust the levelness of the lower pinch roll 2, the gasket 4 does not need to be adjusted frequently subsequently, the height of the gasket 4 is prevented from being determined directly according to levelness deviation, and when the gap of the gasket 4 is in a steel passing working state of the coiling machine, the pressure of the upper pinch roll 1 is changed, so that the levelness of the lower pinch roll 2 does not accord with the working requirement, the defect of the tower shape of the steel coil is caused, the working efficiency and the processing precision are improved, and the processing cost is saved.
In one embodiment of the invention, the detection of the levelness of the lower pinch roll 2 comprises: the upper pinch roll 1 is controlled to move to the unloading position.
In the embodiment, before detecting the levelness of the lower pinch roll 2, an operator needs to confirm that the coiler is in a stop state, the coiler is switched to a manual control state, and then the upper pinch roll 1 is opened to an unloading position through manual control of the operator, so that the safety of the operator is ensured, accidents are avoided, and the safety is improved.
In one embodiment of the invention, fig. 3 and 4 show the placing position of the shim 4, the lower pinch roll 2 has a transmission side and an operation side, the transmission side and the operation side are both provided with the shim 4, and the levelness of the lower pinch roll 2 is adjusted to obtain a first levelness, and the method comprises the following steps: the levelness of the lower pinch roll 2 is adjusted by adjusting the height of the shim 4 on the transmission side to obtain a first levelness.
In this embodiment, the lower pinch roll 2 is provided with a transmission side and an operation side, wherein the transmission side is provided with a transmission side bearing seat 32, the operation side is provided with an operation side bearing seat 31, and a backing plate 6 is arranged under the transmission side bearing seat 32 and the operation side bearing seat 31 in advance, so that the transmission side bearing seat 32 and the operation side bearing seat 31 can be lifted by a certain distance, and the gasket 4 can be conveniently adjusted subsequently. Since the drive-side bearing 32 is provided with a lifting point and the operation-side bearing 31 has no lifting point, the position is kept still with the operation-side bearing 31 as a reference, and the drive-side bearing 32 is adjusted. During adjustment, firstly, the bearing seat locking devices 5 on two sides of the lower pinch roll 2 are loosened, then the transmission side connecting shaft is hoisted by using the crown block, so that a gap is generated between the transmission side bearing seat 32 and the rack 7, the gasket 4 is conveniently added and reduced at the gap between the transmission side bearing seat 32 and the rack 7, the height of the gasket 4 below the operation side bearing seat 31 is kept horizontal, after the adjustment is finished, the crown block falls down the transmission side connecting shaft, the bearing seat locking devices 5 are locked, after the adjustment is finished, the levelness of the lower pinch roll 2 is measured by using a device for measuring the levelness, such as a level gauge or a gradienter, so as to obtain a first levelness, and the first levelness ensures that the coiling machine is in a horizontal state under a non-working state.
Meanwhile, in the aspect of selecting the shims 4, it is preferable to select the shims 4 that can fill the gap between the transmission-side bearing block 32 and the frame 7, and the smaller the number of the shims 4, the better the combination, and the smaller the number of the shims 4, the smaller the gap between the shims 4, so that the height variation of the subsequent shims 4 is small, and the probability that the levelness of the lower pinch roll 2 needs to be adjusted again is reduced. For example, if the clearance between the drive-side bearing block 32 and the frame 7 is 1.2mm, a combination of a 1mm shim 4 and a 0.2mm shim 4 may be used instead of 6 0.2mm shims 4.
In an embodiment of the present invention, fig. 2 to 4 show a structure of a coiler, before controlling an upper pinch roll 1 to press a lower pinch roll 2, comprising: controlling the upper pinch roll 1 to move to the working position.
In this embodiment, before controlling the upper pinch roll 1 to press the lower pinch roll 2, an operator needs to confirm that the coiler is in a starting state, the operator starts an automatic control button in an operating system through an HMI (Human Machine Interface), the coiler is switched to an automatic control state, and then the upper pinch roll 1 is automatically controlled to be closed to a working position through a controller, wherein the controller can use a plc (programmable Logic controller) controller, and the automatic control improves the accuracy of operation and the working efficiency.
In one embodiment of the present invention, fig. 2 to 4 show a structure of a coiler which controls an upper pinch roll 1 to press a lower pinch roll 2, comprising: and controlling the upper pinch roll 1 to apply pressure to the lower pinch roll 2, wherein the pressure is 20KN to 90 KN.
In the embodiment, the upper pinch roll 1 is automatically controlled to press against the lower pinch roll 2, the upper pinch roll 1 is controlled to apply pressure to the lower pinch roll 2, and the pressure applied to the lower coiler by the upper pinch roll 1 is simulated when the steel-passing working state of the coiler is simulated, wherein the pressure can be selected within the range of 20 KN-90 KN. The pressure within the range can better simulate the pressure of the recoiling machine during steel passing, the upper pinch roll 1 applies pressure to the lower pinch roll 2 to further simulate the state of the recoiling machine during steel passing, the gap of the gasket 4 is compressed, the gap between the gasket 4 and bearing seats on two sides of the lower pinch roll 2 is eliminated, the rigidity of two sides of the lower pinch roll 2 is improved, and the rigidity deviation is eliminated.
In an embodiment of the present invention, fig. 2 to 4 show a structure of a coiler which controls an upper pinch roll 1 to press a lower pinch roll 2, further comprising: the pressure is adjusted at predetermined intervals, wherein the predetermined time is 5s to 10 s.
In the embodiment, the time for applying the pressure to the upper pinch roll 1 is preset while automatically controlling the upper pinch roll 1 to apply the pressure to the lower pinch roll 2, the preset time is 5s to 10s, so that the upper pinch roll 1 maintains the pressure for 5s to 10s while applying the pressure in the range of 20KN to 90KN to the lower pinch roll 2, then the value of the pressure is changed, the changed pressure is maintained for 5s to 10s, and the like until the working step is completed. Further simulating the state of the recoiling machine when the recoiling machine passes through steel, compressing the gap of the gasket 4, eliminating the gap between the gasket 4 and bearing seats at two sides of the lower pinch roll 2, improving the rigidity at two sides of the lower pinch roll 2 and eliminating the rigidity deviation.
In an embodiment of the present invention, fig. 2 to 4 show a structure of a coiler which controls an upper pinch roll 1 to press a lower pinch roll 2, further comprising: and controlling the upper pinch roll 1 and the lower pinch roll 2 to rotate at the same rotating speed, wherein the rotating speed is 3-6 m/s.
In the embodiment, the upper pinch roll 1 is automatically controlled to press the lower pinch roll 2, and the upper pinch roll 1 and the lower pinch roll 2 are controlled to rotate at the same rotating speed, so that the rotating speed of the upper pinch roll 1 and the rotating speed of the lower pinch roll 2 can be selected within the range of 3m/s to 6m/s when the working state of passing steel of a coiler is simulated. The rotating speed within the range can better simulate the rotating speeds of the upper pinch roll 1 and the lower pinch roll 2 when the recoiling machine passes through steel, and the upper pinch roll 1 applies pressure to the lower pinch roll 2 and keeps the same rotating speed to rotate. Further simulating the state of the recoiling machine when the recoiling machine passes through steel, compressing the gap of the gasket 4, eliminating the gap between the gasket 4 and bearing seats at two sides of the lower pinch roll 2, improving the rigidity at two sides of the lower pinch roll 2 and eliminating the rigidity deviation.
In an embodiment of the present invention, fig. 2 to 4 show a structure of a coiler which controls an upper pinch roll 1 to press a lower pinch roll 2, further comprising: the rotation speed is adjusted at predetermined intervals.
In the embodiment, the rotation of the upper pinch roll 1 and the lower pinch roll 2 at the same rotating speed is automatically controlled and controlled, meanwhile, the time for the upper pinch roll 1 and the lower pinch roll 2 to operate at the same rotating speed is preset, the preset time is 5s to 10s, so that the rotating speed force is maintained for 5s to 10s while the upper pinch roll 1 and the lower pinch roll 2 rotate at the rotating speed within the range of 3m/s to 6m/s, then the value of the rotating speed is changed, the changed rotating speed is maintained for 5s to 10s, and the like until the working step is completed, and meanwhile, the upper pinch roll 1 exerts the pressure on the lower pinch roll 2 within the range of 20KN to 90KN within the preset time of 5s to 10 s.
For example, the upper pinch roll 1 and the lower pinch roll 2 are both rotated at a speed of 4m/S while performing the pressure control of 30KN for a time of 10S, and then, the pressure applied by the upper pinch roll 1 is changed to 40KN for a time of 10S; changing the pressure applied by the upper pinch roll 1 to 50KN for 10S; next, the rotational speeds of the upper pinch roll 1 and the lower pinch roll 2 were changed to 5m/S for a period of 10S, and the rotational speeds of the upper pinch roll 1 and the lower pinch roll 2 were changed again to 6m/S for a period of 10S.
Further simulating the state of the recoiling machine when the recoiling machine passes through steel, compressing the gap of the gasket 4, eliminating the gap between the gasket 4 and bearing seats at two sides of the lower pinch roll 2, improving the rigidity at two sides of the lower pinch roll 2 and eliminating the rigidity deviation.
In an embodiment of the present invention, fig. 2 to 4 show a structure of a coiler, before calibrating the lower pinch roll 2 according to the second levelness, further comprising: and judging whether the second levelness needs to be adjusted, and if so, adjusting the levelness of the lower pinch roll 2 again.
In this embodiment, after the shim 4 is compressed by simulating the working state of the coiler when passing steel, the levelness of the lower pinch roll 2 at that time is measured by using a device for measuring levelness such as a level ruler or a level meter, so as to obtain a second levelness, and whether the second levelness needs to be adjusted is judged, if the second levelness meets the requirement of the working state of the coiler when passing steel, no adjustment is needed, because the shim 4 is compressed, the first levelness measured before is liable to change, the data calibrated by the first levelness is unsuitable for the current state, and the lower pinch roll 2 needs to be calibrated again by the second levelness at that time.
If the second levelness can not meet the requirement of the working state when the coiler passes through the steel, the gap of the previous gasket 4 is too large, the height of the gasket 4 which is reduced after the gasket 4 is compressed is too large, the gasket 4 below the transmission side bearing seat 32 needs to be adjusted again, the levelness of the lower pinch roll 2 and the subsequent working steps are repeated again until the second levelness after adjustment is detected to meet the requirement of the working state when the coiler passes through the steel, and the lower pinch roll 2 is calibrated again according to the second levelness after adjustment.
In this embodiment, as shown in fig. 5, there is provided a controller 400, which comprises a memory 412 and a processor 411, and is characterized in that the processor 411 is used for implementing the steps of any one of the methods for adjusting the levelness of the lower pinch roll 2 of the coiler when executing the computer program stored in the memory 412.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for adjusting levelness of a lower pinch roll of a coiler is characterized by comprising the following steps:
detecting the levelness of the lower pinch roll;
adjusting the levelness of the lower pinch roll to obtain a first levelness;
controlling the upper pinch roll to press against the lower pinch roll;
detecting the levelness of the lower pinch roll after being pressed to obtain a second levelness;
and calibrating the lower pinch roll according to the second levelness.
2. The method for adjusting the levelness of the lower pinch roll of the coiler according to claim 1, wherein before detecting the levelness of the lower pinch roll, the method comprises:
and controlling the upper pinch roll to move to an unloading position.
3. The method of adjusting the levelness of a lower pinch roll of a coiler of claim 1, wherein said lower pinch roll has a drive side and an operating side, each of said drive side and said operating side being provided with shims, said adjusting the levelness of said lower pinch roll to obtain a first levelness comprising:
adjusting the levelness of the lower pinch roll by adjusting the shim height of the drive side to obtain the first levelness.
4. The method for adjusting the levelness of the lower pinch roll of the coiler according to claim 1, wherein before controlling the upper pinch roll to press against the lower pinch roll, the method comprises:
and controlling the upper pinch roll to move to the working position.
5. The method for adjusting the levelness of the lower pinch roll of the coiler according to claim 4, wherein said controlling the upper pinch roll to press against the lower pinch roll comprises:
and controlling the upper pinch roll to apply pressure to the lower pinch roll, wherein the pressure is 20 KN-90 KN.
6. The method for adjusting the levelness of the lower pinch roll of the coiler according to claim 5, wherein said controlling the upper pinch roll to press against the lower pinch roll further comprises:
the pressure is adjusted at predetermined intervals, wherein the predetermined time is 5s to 10 s.
7. The method for adjusting the levelness of the lower pinch roll of the coiler according to claim 4, wherein said controlling the upper pinch roll to press against the lower pinch roll further comprises:
and controlling the upper pinch roll and the lower pinch roll to rotate at the same rotating speed, wherein the rotating speed is 3-6 m/s.
8. The method for adjusting the levelness of the lower pinch roll of the coiler according to claim 7, wherein said controlling the upper pinch roll to press against the lower pinch roll further comprises:
and adjusting the rotating speed at the preset time interval.
9. The method for adjusting the levelness of the lower pinch roll of the coiler according to claim 1, wherein before calibrating the lower pinch roll according to the second levelness, the method further comprises:
and judging whether the second levelness needs to be adjusted or not, and if so, adjusting the levelness of the lower pinch roll again.
10. A controller comprising a memory, a processor, wherein the processor is configured to implement the steps of the method of adjusting a level of a lower pinch roll of a coiler according to any of the claims 1 to 9 when executing a computer program stored in the memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110045600.XA CN112893514A (en) | 2021-01-14 | 2021-01-14 | Method for adjusting levelness of lower pinch roll of coiler and controller |
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| CN114602997A (en) * | 2022-03-17 | 2022-06-10 | 安阳钢铁股份有限公司 | Quick mechanical leveling device for rocker arm type pinch roll of underground recoiling machine and implementation method thereof |
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