Automatic deviation rectification control device and method for strip steel

Abstract

The invention discloses an automatic strip steel deviation correction control device and method, and relates to the technical field of cold rolling procedures in the metallurgical industry, the device comprises a detection device which is electrically connected to a control cabinet and is used for detecting direct current voltage output by a strip steel production and processing unit to obtain a strip steel deviation result and sending the strip steel deviation result to the control cabinet; the control cabinet is electrically connected to the pressing roller mechanism and used for receiving the strip steel deviation result, adjusting action parameters of the pressing roller mechanism according to the deviation result and sending the action parameters to the pressing roller mechanism; and the compression roller mechanism is electrically connected to the control cabinet and is used for receiving the action parameters and adjusting the deviation rectifying range and deviation rectifying pressure of the strip steel of different specifications based on the action parameters. According to the device, the pressure of the screw-down air cylinder and the deviation correction range can be automatically adjusted according to different strip steel thicknesses and strip steel deviation ranges, the full-automatic deviation correction function is achieved, and the device has the remote opening and closing control and detection functions.

Description

Technical Field

[0001] The present application relates to the technical field of cold rolling processes in the metallurgical industry, and in particular to a device and method for automatically correcting deviation of a steel strip. Background Art

[0002] With increasing market competition, silicon steel annealing and decarburization lines are undergoing continuous process technology upgrades and improvements, expanding product specifications and achieving breakthroughs in ultra-wide, ultra-thick, and ultra-thin strips. This, in turn, presents operational challenges for strip production lines. For example, these ultra-wide, ultra-thick, and ultra-thin strips, influenced by factors such as line design specifications, heating temperature, and strip shape, frequently experience strip deviation at the annealing furnace exit. In severe cases, strip edge scraping or even breakage can occur. Adding a CPC continuous deviation correction device would require significant space, require long installation times, and require significant investment.

[0003] Therefore, it is necessary to propose a strip automatic deviation correction control device and method to solve the above problems. Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention of this application is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] This application specifically includes the following aspects:

[0006] In a first aspect, the present application provides a strip steel automatic deviation correction control device for a strip steel production and processing unit, comprising:

[0007] a detection device, electrically connected to the control cabinet, for detecting the DC voltage output by the strip production and processing unit to obtain a strip deviation result, and sending the strip deviation result to the control cabinet; wherein the DC voltage includes a transmission side voltage of the strip production and processing unit and a working side voltage of the strip production and processing unit; and the strip deviation result is the difference between the transmission side voltage and the working side voltage;

[0008] a control cabinet, electrically connected to the pressing roller mechanism, for receiving the strip steel deviation result, obtaining the action parameters of the pressing roller mechanism according to the deviation result, and sending the action parameters to the pressing roller mechanism;

[0009] The pressing roller mechanism is electrically connected to the control cabinet, and is used to receive the action parameters and adjust the correction range and correction pressure of strip steels of different specifications based on the action parameters.

[0010] In a feasible implementation manner, the detection device is divided into two groups, and each group of the detection device includes a transmitting end and a receiving end, wherein:

[0011] The transmitting end is arranged below the strip steel and is used to transmit alternating magnetic lines of force to the receiving end;

[0012] The receiving end is arranged above the strip steel, and is used to output the DC voltage through resonance, amplification and detection circuits based on the alternating voltage generated by the alternating magnetic lines of force when the transmitting end and the receiving end pass through the strip steel.

[0013] In a feasible embodiment, two groups of detection devices are respectively arranged on the transmission side and the working side of the strip production and processing unit. When the strip passes between the transmitting end and the receiving end, the transmission side voltage and the working side voltage are detected to obtain the strip deviation result, wherein:

[0014] When the difference between the transmission side voltage and the working side voltage is 0, the strip steel is centered without deviation;

[0015] When the difference between the transmission side voltage and the working side voltage is positive, the strip steel deviates toward the working side;

[0016] When the difference between the transmission side voltage and the working side voltage is a negative value, the strip steel deviates toward the transmission side.

[0017] In a feasible embodiment, the pressing roller mechanism is arranged in a split roller pair form and is arranged on the working side and the transmission side of the strip production and processing unit; the working side and the transmission side are both provided with an upper roller and a lower roller;

[0018] A pressing cylinder is provided in the vertical direction of the upper roller, which is used to drive the upper roller to press down and lift along the preset slide in the vertical direction based on the action parameters to adjust the correction range and correction pressure;

[0019] A horizontal moving cylinder is provided in the horizontal direction of the upper roller, which is used to drive the upper roller to open and close along a preset track in the horizontal direction based on the action parameters, so as to control and detect the opening and closing of the upper roller.

[0020] In a feasible embodiment, the pressure of the pressing cylinder is adjusted by a pressure reducing valve to adjust the pressure of the pressing cylinder and the correction range according to different strip thicknesses and the strip deviation results.

[0021] In a feasible embodiment, the control cabinet is provided with a device control switch and a control mode switching switch of the pressing roller mechanism to adjust the action parameters of the pressing roller mechanism according to the offset result.

[0022] In a feasible implementation manner, the control mode switch is used to switch the control mode of the control cabinet to automatic mode or manual mode, wherein:

[0023] When the manual mode is switched, the action parameters of the pressing roller mechanism are adjusted by manually operating the device control switch according to the offset result, so as to control the upper roller of the pressing roller mechanism to press down and lift along the preset slide in the vertical direction, and to open and close along the preset track in the horizontal direction;

[0024] When switched to the automatic mode, the pressure reducing valve of the pressing roller mechanism is remotely controlled by the PLC system in the control cabinet to adjust the deviation correction range and deviation correction pressure of strip steels of different specifications.

[0025] In a feasible embodiment, the control cabinet is also provided with an upper roller wear and correction function failure warning function, which is used to judge whether the roller is worn and the correction function fails by comparing the upper roller pressing time and the deviation range when switching to automatic mode.

[0026] In a second aspect, the present application proposes a strip steel automatic deviation correction control method, which is applied to the strip steel automatic deviation correction control device described in any of the above embodiments, comprising:

[0027] Detecting the DC voltage output by the strip production and processing unit to obtain a strip deviation result; wherein the DC voltage includes a transmission side voltage of the strip production and processing unit and a working side voltage of the strip production and processing unit; and the strip deviation result is the difference between the transmission side voltage and the working side voltage;

[0028] Obtaining action parameters according to the offset result;

[0029] Based on the action parameters, the deviation correction range and deviation correction pressure of strip steels of different specifications are adjusted.

[0030] In a feasible embodiment, the action parameters are obtained according to the offset result, including: according to the offset result, the action parameters are obtained by manual adjustment, or the action parameters are obtained by remote adjustment through a PLC system, so as to adjust the correction range and correction pressure of strip steels of different specifications based on the action parameters.

[0031] In summary, the automatic strip deviation correction control device and method proposed in the present application include: a detection device, electrically connected to the control cabinet, for detecting the DC voltage output by the strip production and processing unit to obtain the strip deviation result, and sending the strip deviation result to the control cabinet; wherein the DC voltage includes the transmission side voltage of the strip production and processing unit and the working side voltage of the strip production and processing unit; the strip deviation result is the difference between the transmission side voltage and the working side voltage; a control cabinet, electrically connected to the pressure roller mechanism, for receiving the strip deviation result, obtaining the action parameters of the pressure roller mechanism according to the deviation result, and sending the action parameters to the pressure roller mechanism; the pressure roller mechanism, electrically connected to the control cabinet, for receiving the action parameters, and based on the action parameters, adjusting the deviation correction range and deviation correction pressure of strips of different specifications.

[0032] The device primarily consists of a detection device, a control cabinet, and a pressure roller mechanism. It operates in both manual and automatic modes. The automatic mode automatically adjusts the pressure and correction range of the pressing cylinder based on the strip thickness and deviation range, achieving fully automatic correction. Furthermore, a cylinder drives the horizontal movement of the upper roller, enabling remote on / off control and detection. Furthermore, the unit's CPC (continuous correction device) cylinder position detection system incorporates a shutdown interlock function, as well as early warning features for upper pressure roller wear and correction failure.

[0033] This application addresses the issue of strip deviation, edge scraping, and even strip breakage at the annealing furnace outlet after process upgrades for non-oriented medium and low-grade continuous annealing units, expanding product design specifications (thickness 0.35mm-0.65mm, width 950mm-1250mm) to (thickness 0.3mm-1.0mm, width 850mm-1300mm). This application addresses these operational challenges, meeting the needs of process upgrades and product expansion, and is expected to generate annual returns of 11.77 million yuan.

[0034] The automatic strip deviation correction control device and method proposed in this application, and other advantages, objectives and features of this application will be reflected in part through the following description, and will also be understood by technical personnel in this field through research and practice of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present description. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0036] Figure 1A schematic structural diagram of an automatic strip deviation correction control device provided in an embodiment of the present application;

[0037] Figure 2 A schematic diagram of the structure of the detection device provided in an embodiment of the present application;

[0038] Figure 3 A schematic structural diagram of the pressure roller mechanism provided in an embodiment of the present application;

[0039] Figure 4 A schematic diagram of the structure of the control cabinet provided in an embodiment of the present application;

[0040] Figure 5 A schematic diagram of the process of an automatic strip deviation correction control method provided in an embodiment of the present application;

[0041] Figure 6 A flowchart of the manual mode control method provided in an embodiment of the present application;

[0042] Figure 7 A flow chart of the control method for the automatic mode when the strip thickness is less than or equal to 0.35 mm provided in an embodiment of the present application;

[0043] Figure 8 A flow chart of the control method for the automatic mode when the strip thickness is greater than 0.35 mm and less than 0.5 mm provided in an embodiment of the present application;

[0044] Figure 9 This is a flow chart of the control method for the automatic mode when the strip thickness is greater than or equal to 0.5 mm and less than or equal to 1 mm provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0046] In this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also include elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the statement "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or equipment comprising the elements. The term "two or more" includes two or more than two cases.

[0047] The present application provides a device and method for automatic strip deviation correction control, which can realize automatic adjustment of the pressing cylinder pressure and the correction range according to different strip thicknesses and strip deviation ranges through manual or automatic modes, thereby realizing a fully automatic correction function.

[0048] See also Figure 1 , which is a schematic structural diagram of an automatic strip deviation correction control device provided in an embodiment of the present application, which may specifically include:

[0049] The detection device 1 is electrically connected to the control cabinet 2, and is used to detect the DC voltage output by the strip production and processing unit to obtain the strip deviation result, and send the strip deviation result to the control cabinet 2; wherein, the DC voltage includes the transmission side voltage of the strip production and processing unit and the working side voltage of the strip production and processing unit; the strip deviation result is the difference between the transmission side voltage and the working side voltage.

[0050] For example, detection device 1 is located at the front end of the roller mechanism, representing feedforward detection. Two detection devices 1 are located on the drive and working sides of the processing unit, respectively. They utilize a high-frequency magnetic induction continuous detector with a strip coil structure and a resonant frequency of 16.4 kHz.

[0051] The control cabinet 2 is electrically connected to the pressing roller mechanism 3 , and is used to receive the strip deviation result, obtain the action parameters of the pressing roller mechanism 3 according to the deviation result, and send the action parameters to the pressing roller mechanism 3 .

[0052] For example, control cabinet 2 remotely controls the opening and closing of the upper roller of the pressure roller mechanism 3, as well as its detection, to avoid the dangers of personnel working above the steel strip 4 and manually pushing and pulling the upper roller. Control cabinet 2 also remotely adjusts the pressure reducing valve and correction range of the pressure roller mechanism 3, automatically adjusting the correction range and pressure for different steel strip specifications. This avoids the risk of strip edge scraping or even breakage due to excessive correction pressure or insufficient correction pressure.

[0053] The pressing roller mechanism 3 is electrically connected to the control cabinet, and is used to receive the action parameters and adjust the correction range and correction pressure of strip steels of different specifications based on the action parameters.

[0054] For example, the pressing roller mechanism 3 obtains its own action parameters according to the offset result transmitted by the control cabinet, and then causes the pressing roller mechanism 3 to act according to the action parameters, thereby automatically adjusting its pressing cylinder pressure and correction range for different strip thicknesses and strip deviation ranges.

[0055] In summary, the automatic strip deviation correction control device proposed in the embodiment of the present application provides a new, simple, and complete set of automatic strip deviation correction control devices, which mainly include a detection device, a control cabinet, and a pressure roller mechanism. The detection device detects the strip to obtain the deviation result, and the deviation result is sent to the control cabinet. The staff receives the actual deviation through the control cabinet and sets the action parameters of the pressure roller mechanism based on the deviation result, so that the pressure roller mechanism operates according to the action parameters. Finally, the automatic strip deviation correction control device automatically adjusts the pressure of the pressing cylinder and the correction range according to different strip thicknesses and strip deviation ranges, realizing a fully automatic correction function.

[0056] In some examples, the detection devices are divided into two groups, each group of the detection devices includes a transmitting end and a receiving end, wherein:

[0057] The transmitting end is arranged below the strip steel and is used to transmit alternating magnetic lines of force to the receiving end;

[0058] The receiving end is arranged above the strip steel, and is used to output the DC voltage through resonance, amplification and detection circuits based on the alternating voltage generated by the alternating magnetic lines of force when the transmitting end and the receiving end pass through the strip steel.

[0059] For example, the detection device 1 is divided into a transmitting end and a receiving end. The transmitting end is installed below the steel strip 4, and the receiving end is installed above the steel strip 4. It should be noted that the working principle of the detection device 1 is the principle of electromagnetic induction. That is, when an alternating current passes through the transmitting coil, it will emit directional alternating magnetic lines of force into space. When the magnetic lines of force pass through the receiving coil, an alternating voltage is generated on the receiving coil. Then, through resonance, amplification, and detection circuits, a DC voltage is output at the receiving end.

[0060] In some examples, two sets of detection devices are respectively provided on the transmission side and the working side of the strip steel production and processing unit. When the strip steel passes between the transmitting end and the receiving end, the transmission side voltage and the working side voltage are detected to obtain the strip steel deviation result, wherein:

[0061] When the difference between the transmission side voltage and the working side voltage is 0, the strip steel is centered without deviation;

[0062] When the difference between the transmission side voltage and the working side voltage is positive, the strip steel deviates toward the working side;

[0063] When the difference between the transmission side voltage and the working side voltage is a negative value, the strip steel deviates toward the transmission side.

[0064] For example, see Figure 2 , Figure 2 The figure is a schematic diagram of the detection device. The drive-side voltage of detection device 1 is VD, and the working-side voltage is VW. When there is no strip, VD and VW represent the maximum detection voltages, which are DC15V. When the strip passes between the transmitter and receiver, it blocks the magnetic lines of force at the transmitter, thereby changing VD and VW. If the strip 4 is centered, meaning that the areas of the transmitter blocked by the strip on the drive and working sides are equal, the voltage generated at the receiver is VD = VW, i.e., VD - VW = 0. If the strip 4 is not centered and deflects, meaning that the strip 4 deviates, a difference Vd (VD - VW) will appear between VD and VW, and the deflection of the strip 4 is proportional to Vd. A positive Vd value indicates that the strip 4 has deviated toward the working side, while a negative Vd value indicates that the strip 4 has deviated toward the drive side. These VW and VD are connected to the control cabinet 2 via shielded signal cables for PLC system control.

[0065] In some examples, the pressing roller mechanism is arranged in a split roller pair form on the working side and the transmission side of the strip production and processing unit; the working side and the transmission side are both provided with an upper roller and a lower roller;

[0066] A pressing cylinder is provided in the vertical direction of the upper roller, which is used to drive the upper roller to press down and lift along the preset slide in the vertical direction based on the action parameters to adjust the correction range and correction pressure;

[0067] A horizontal moving cylinder is provided in the horizontal direction of the upper roller, which is used to drive the upper roller to open and close along a preset track in the horizontal direction based on the action parameters, so as to control and detect the opening and closing of the upper roller.

[0068] For example, see Figure 3 , Figure 3The diagram below shows the structure of the pressure roller mechanism. The pressure roller mechanism 3 utilizes a split roller arrangement, installed on either side of the processing unit. The strip 4 passes through the middle of the rollers. The rollers are rubber rollers. The operating-side lower roller 27 and the transmission-side lower roller 28 have angle adjustment mechanisms with respect to the running direction of the strip 4, with an adjustment range of 0-180°. Both upper and lower rollers are driven rollers, rotating with the running strip 4. The vertical movement of the operating-side upper roller 25 and the transmission-side upper roller 26 is driven by the operating-side pressure cylinder 21 and the transmission-side pressure cylinder 22, respectively, pressing down and lifting along a slideway. The upper rollers are provided with horizontal tracks, and the operating-side horizontal movement cylinder 23 and the transmission-side horizontal cylinder 24 drive the upper rollers to open and close along the tracks.

[0069] Furthermore, the track is equipped with a switch 29 for detecting working and non-working positions. Opening and closing are controlled and monitored via an on-site control cabinet 2, eliminating the risk of injury from manual pushing and pulling operations and preventing potential equipment malfunctions due to improper manual opening and closing. The cylinder piping is configured as a spiral hose, which coordinates with the horizontal opening and closing of the upper roller, eliminating the dangerous task of personnel entering the upper surface of the running strip for roll replacement and maintenance. Throttle valves are installed in the air intake and exhaust lines of the compression cylinder to control the speed of the cylinder's compression action, preventing excessive pressure from causing surface defects on the strip.

[0070] In some examples, the pressure of the pressing cylinder is adjusted by a pressure reducing valve to adjust the pressure of the pressing cylinder and the correction range according to different strip thicknesses and the strip deviation results.

[0071] For example, the pressing cylinder is controlled by a pressure reducing valve, which is designed with two correction functions: high pressure and low pressure. The pressure reducing valve adjusts the pressure through PLC remote control, and can automatically adjust the pressing cylinder pressure and correction range according to different strip thicknesses and strip deviation ranges.

[0072] In some examples, the control cabinet is provided with a device control switch and a control mode switching switch of the pressing roller mechanism to adjust the action parameters of the pressing roller mechanism according to the offset result.

[0073] For example, the control cabinet 2 is designed with a PLC, a detection device power supply and its power trigger board, and a pneumatic valve group.

[0074] In some examples, the control mode switch is used to switch the control mode of the control cabinet to an automatic mode or a manual mode, wherein:

[0075] When the manual mode is switched, the action parameters of the pressing roller mechanism are adjusted by manually operating the device control switch according to the offset result, so as to control the upper roller of the pressing roller mechanism to press down and lift along the preset slide in the vertical direction, and to open and close along the preset track in the horizontal direction;

[0076] When switched to the automatic mode, the pressure reducing valve of the pressing roller mechanism is remotely controlled by the PLC system in the control cabinet to adjust the deviation correction range and deviation correction pressure of strip steels of different specifications.

[0077] For example, see Figure 4 , Figure 4 This is a schematic diagram of the control cabinet. Control cabinet 2 is designed for both manual and automatic modes. Manual mode allows for on-site manual control of the upper roller of roller mechanism 3, either pressing down or lifting it, or opening or closing it horizontally. Automatic mode provides remote automatic correction. A strip deviation indicator is located on-site in control cabinet 2. Position 0 represents the strip's center position, while negative values ​​indicate strip deviation toward the drive side and positive values ​​indicate strip deviation toward the working side.

[0078] Furthermore, mode switching is accomplished via a switch knob on on-site control cabinet 2. Manual mode involves manually operating the equipment via the on-site control cabinet, primarily for testing individual equipment movements. Automatic mode is a remote control mode, communicating with the PLC system within the cabinet and the unit's PLC system. A remotely adjustable pressure reducing valve automatically adjusts the correction range and pressure for different strip specifications, avoiding the risk of excessive correction due to excessive pressure, or insufficient pressure, leading to inadequate correction and the risk of strip edge scraping or even breakage.

[0079] In some examples, the control cabinet is also provided with an upper roller wear and correction function failure warning function, which is used to determine whether the roller is worn and the correction function fails by comparing the upper roller pressing time and the deviation range when switching to automatic mode.

[0080] For example, the automatic mode sets an early warning function for upper roller wear and correction function failure, and realizes the early warning function of roller wear and correction function failure by comparing the upper roller pressing time with the deviation range.

[0081] In some examples, the unit's parking interlock function is designed through position detection with the unit's CPC (continuous correction device) cylinder to prevent the strip from running off the edge and breaking.

[0082] In summary, in the automatic deviation correction control device for strip steel provided by the present application, the horizontal movement of the upper roller of the pressure roller mechanism is driven by a cylinder, which can realize the remote operation of the upper roller opening and closing control and detection by the control cabinet, avoiding the danger of personnel working above the strip steel and the danger of personnel manually pushing and pulling the upper roller mechanism. The device is designed with a remote adjustable pressure reducing valve and a deviation correction range adjustment function, which can realize automatic adjustment of the deviation correction range and deviation correction pressure for strip steel of different specifications, avoiding excessive deviation correction due to excessive deviation correction pressure or insufficient deviation correction pressure, resulting in the risk of strip steel scraping or even breaking; the device detection and the unit CPC (continuous deviation correction device) oil cylinder position detection are designed to design a unit parking interlock function to prevent the strip steel from deviating, scraping or breaking; the device is equipped with a roller wear warning function, which realizes early warning functions such as roller wear and equipment abnormality by comparing the upper roller pressing time with the deviation range.

[0083] It should be noted that the above embodiments are only the best examples and are not intended to limit the implementation of the present application.

[0084] Furthermore, the present application also proposes a strip steel automatic deviation correction control method, which is applied to any of the above-mentioned strip steel automatic deviation correction control devices, specifically as follows: Figure 5 FIG. 1 is a flow chart of a method for automatically correcting deviation of a steel strip proposed in this application, the method comprising:

[0085] S110, detecting a DC voltage output by the strip production and processing unit to obtain a strip deviation result; wherein the DC voltage includes a transmission side voltage of the strip production and processing unit and a working side voltage of the strip production and processing unit; and the strip deviation result is a difference between the transmission side voltage and the working side voltage;

[0086] S120, obtaining an action parameter according to the offset result;

[0087] S130. Based on the action parameters, adjust the deviation correction range and deviation correction pressure of strip steels of different specifications.

[0088] In some examples, action parameters are obtained based on the offset results, including: obtaining the action parameters through manual adjustment based on the offset results, or obtaining the action parameters through remote adjustment through a PLC system, so as to adjust the correction range and correction pressure of strip steels of different specifications based on the action parameters.

[0089] For example, Figure 6 The flow chart of the manual mode control method is as follows: manually adjusting the action parameters is to manually operate the equipment action in the field control cabinet, which is mainly used to test the action of the equipment unit.

[0090] Figures 7 to 9The flowchart of the automatic mode control method is shown. The PLC system remotely adjusts the motion parameters in remote control mode. The PLC system inside the cabinet communicates with the unit's PLC system. The remotely adjustable pressure reducing valve automatically adjusts the correction range and pressure for different strip specifications. This avoids excessive correction due to excessive correction pressure, or insufficient correction pressure, resulting in inadequate correction and the risk of strip edge scraping or even breakage.

[0091] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0092] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and methods can refer to the corresponding processes in the aforementioned device embodiments and will not be repeated here.

[0093] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative.

[0094] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0095] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0096] Obviously, those skilled in the art may make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if such changes and modifications fall within the scope of the claims of this specification and their equivalents, this specification is intended to include such changes and modifications.

Claims

1. A strip steel automatic deviation correction control device for a strip steel production and processing unit, characterized in that: include: a detection device, electrically connected to the control cabinet, for detecting the DC voltage output by the strip production and processing unit to obtain a strip deviation result, and sending the strip deviation result to the control cabinet; wherein the DC voltage includes a transmission side voltage of the strip production and processing unit and a working side voltage of the strip production and processing unit; and the strip deviation result is the difference between the transmission side voltage and the working side voltage; a control cabinet, electrically connected to the pressing roller mechanism, for receiving the strip steel deviation result, obtaining the action parameters of the pressing roller mechanism according to the deviation result, and sending the action parameters to the pressing roller mechanism; The pressing roller mechanism is electrically connected to the control cabinet, and is used to receive the action parameters and adjust the correction range and correction pressure of strip steels of different specifications based on the action parameters.

2. The strip steel automatic deviation correction control device according to claim 1, characterized in that: There are two groups of detection devices, each group of detection devices includes a transmitting end and a receiving end, wherein: The transmitting end is arranged below the strip steel and is used to transmit alternating magnetic lines of force to the receiving end; The receiving end is arranged above the strip steel, and is used to output the DC voltage through resonance, amplification and detection circuits based on the alternating voltage generated by the alternating magnetic lines of force when the transmitting end and the receiving end pass through the strip steel.

3. The strip steel automatic deviation correction control device according to claim 2, characterized in that: The two groups of detection devices are respectively arranged on the transmission side and the working side of the strip steel production and processing unit. When the strip steel passes between the transmitting end and the receiving end, the transmission side voltage and the working side voltage are detected to obtain the strip steel deviation result, wherein: When the difference between the transmission side voltage and the working side voltage is 0, the strip steel is centered without deviation; When the difference between the transmission side voltage and the working side voltage is positive, the strip steel deviates toward the working side; When the difference between the transmission side voltage and the working side voltage is a negative value, the strip steel deviates toward the transmission side.

4. The strip steel automatic deviation correction control device according to claim 1, characterized in that: The pressing roller mechanism is arranged in a split roller pair form and is arranged on the working side and the transmission side of the strip steel production and processing unit; the working side and the transmission side are both provided with an upper roller and a lower roller; A pressing cylinder is provided in the vertical direction of the upper roller, which is used to drive the upper roller to press down and lift along the preset slide in the vertical direction based on the action parameters to adjust the correction range and correction pressure; A horizontal moving cylinder is provided in the horizontal direction of the upper roller, which is used to drive the upper roller to open and close along a preset track in the horizontal direction based on the action parameters, so as to control and detect the opening and closing of the upper roller.

5. The strip steel automatic deviation correction control device according to claim 4, characterized in that: The pressure of the pressing cylinder is adjusted by a pressure reducing valve, so as to adjust the pressure of the pressing cylinder and the correction range according to different strip thicknesses and the strip deviation results.

6. The strip steel automatic deviation correction control device according to claim 1, characterized in that: The control cabinet is provided with an equipment control switch and a control mode switching switch of the pressing roller mechanism to adjust the action parameters of the pressing roller mechanism according to the offset result.

7. The strip steel automatic deviation correction control device according to claim 6, characterized in that: The control mode switch is used to switch the control mode of the control cabinet to automatic mode or manual mode, wherein: When the manual mode is switched, the action parameters of the pressing roller mechanism are adjusted by manually operating the device control switch according to the offset result, so as to control the upper roller of the pressing roller mechanism to press down and lift along the preset slide in the vertical direction, and to open and close along the preset track in the horizontal direction; When switched to the automatic mode, the pressure reducing valve of the pressing roller mechanism is remotely controlled by the PLC system in the control cabinet to adjust the deviation correction range and deviation correction pressure of strip steels of different specifications.

8. The strip steel automatic deviation correction control device according to claim 7, characterized in that: The control cabinet is also provided with an upper roller wear and correction function failure warning function, which is used to judge whether the roller is worn and the correction function fails by comparing the upper roller pressing time and the deviation range when switching to automatic mode.

9. A strip steel automatic deviation correction control method, applied to the strip steel automatic deviation correction control device according to any one of claims 1 to 8, characterized in that: include: Detecting the DC voltage output by the strip production and processing unit to obtain a strip deviation result; wherein the DC voltage includes a transmission side voltage of the strip production and processing unit and a working side voltage of the strip production and processing unit; and the strip deviation result is the difference between the transmission side voltage and the working side voltage; Obtaining action parameters according to the offset result; Based on the action parameters, the deviation correction range and deviation correction pressure of strip steels of different specifications are adjusted.

10. The automatic deviation correction control method for steel strip according to claim 9, characterized in that: The action parameters are obtained according to the offset result, including: according to the offset result, the action parameters are obtained by manual adjustment, or the action parameters are obtained by remote adjustment through a PLC system, so as to adjust the correction range and correction pressure of strip steels of different specifications based on the action parameters.

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