A pinch roll gap calibration method and device, electronic equipment and storage medium
By checking the operating status and compensating the pressure of the pinch rolls, the problems of large roll gap calibration error and long adjustment time in the existing technology have been solved, and fast and accurate roll gap calibration has been achieved, meeting production needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING IRON & STEEL CO LTD
- Filing Date
- 2024-01-16
- Publication Date
- 2026-07-24
AI Technical Summary
Existing methods for calibrating the gap of pinch rolls have limitations, are prone to calibration errors, and require a long time for gap adjustment and leveling, which cannot meet production needs and affects normal production.
By activating the clamping cylinder of the upper pinch roller to perform clamping and releasing actions, the operating status of the pinch roller is checked, the total pressure and single-sided pressure compensation are reset to zero, the single-sided pressure and roll gap are detected, and zero-position compensation and verification of the roll gap are performed to ensure the accuracy of the calibration results.
It reduced the roll gap deviation, improved the accuracy and efficiency of calibration results, met production needs, and ensured the normal operation of subsequent production.
Smart Images
Figure CN117943415B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hot rolling production technology, and in particular to a method, apparatus, electronic device, and storage medium for calibrating the gap of pinch rolls. Background Technology
[0002] In hot rolling (strip) mills, the calibration methods for the coiling pinch rolls are usually as follows: static calibration, with the compensation value cleared, a roll gap value is set, the upper pinch roll is pressed down, and the calibration is passed when the pressure reaches the set value; dynamic calibration, i.e., a roll gap value is set, and under a set pressure, the pinch roll is rotated and pressed down. The current and pressure reach the set value and are maintained for no less than the specified time, and the calibration is passed.
[0003] Existing calibration methods all have certain limitations. Static calibration methods produce inaccurate results; dynamic calibration methods are also inaccurate when the roll gap is uneven or the deviation is large, and there are also cases where the rolls are not properly pressed or not pressed in place, resulting in calibration failure. Therefore, static and dynamic calibration methods are only suitable for calibration under normal ideal conditions. Since the pinch roll equipment on site cannot always be in an ideal state, in some scenarios, especially when the parallelism of the pinch rolls is abnormal or there is a deviation in the roll gap, if the existing calibration methods are still used for calibration, the pinch rolls will fail to be calibrated. Roll gap adjustment and leveling will be required, which is time-consuming, cannot meet production needs, disrupts the production rhythm, and affects the normal operation of subsequent production. Summary of the Invention
[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a method, device, electronic device and storage medium for calibrating the gap of pinch rolls, so as to solve the problems that the existing pinch roll gap calibration methods have limitations, are prone to calibration errors, and take a long time to adjust and level the gap, which cannot meet the current production needs and affect normal production.
[0005] To achieve the above and other related objectives, the present invention provides a method for calibrating the gap of a pinch roll, comprising:
[0006] Start the upper pinch roller clamping cylinder to perform clamping and releasing actions, and check the operating status of the upper pinch roller, which includes normal and abnormal states.
[0007] When the upper pinch roller is in normal condition, the total pressure compensation and single-sided pressure compensation of the upper pinch roller are reset to zero.
[0008] Press down the upper pinch roller and detect the pressure on one side of the upper pinch roller and the roller gap;
[0009] When it is detected that the pressure on one side is full and the roll gap is not zero, after ruling out the abnormality of the pinch roll, the actual roll gap value is measured and compared with the preset roll gap value, and roll gap zero compensation is performed. When it is detected that the pressure on one side is not full and the roll gap is zero, the roll gap value is reduced to increase the pressure on that side until the pressure is full.
[0010] After the inspection is completed, record the current roll gap position as zero, clear the roll gap zero compensation, and then perform a roll gap verification.
[0011] After verification, the roll gap zero-position compensation is reset to zero again to complete the calibration.
[0012] Optionally, the abnormal state includes jamming, misalignment, damage, etc. When the upper pinch roller is determined to be in an abnormal state, calibration is stopped and the upper pinch roller is repaired.
[0013] Optionally, when it is detected that the pressure on one side of the upper pinch roller is full and the roller gap is not zero, the upper pinch roller clamping cylinder is activated to raise the upper pinch roller to the highest position and press it down to eliminate the jamming situation. In the absence of jamming, the roller gap is measured to obtain the actual roller gap value. The actual roller gap value is compared with the preset roller gap value, and the roller gap value is reduced according to the comparison result to perform roller gap zero position compensation.
[0014] Optionally, when it is detected that the pressure on one side of the upper pinch roller is not full and the roller gap is zero, the roller gap value is reduced to increase the pressure on that side and perform pressure compensation until the pressure on one side is full. If the pressure cannot be fully compensated, the pressure on the upper pinch roller is stopped, and the part of the pressure that cannot be fully compensated is compensated by increasing the pressure value.
[0015] Optionally, after the test is completed, the compensated position of the 0mm roll gap is recorded as the roll gap zero position, thus completing the zero position recording.
[0016] Optionally, the verification can be performed using preset roll gap values of 5mm, 2mm, 1mm, and 0mm. The actual measured value of the 0mm roll gap is compared with the preset roll gap. If the difference between the actual measured value and the preset roll gap value is within the preset error range, the verification is complete. If the difference between the actual measured value and the preset roll gap value exceeds the preset error range, roll gap zero-position compensation is performed based on the difference, and the compensated position of the 0mm roll gap is recorded as the roll gap zero position, thus completing the verification.
[0017] Based on the same inventive concept, the present invention also provides a roll gap calibration device, the device comprising:
[0018] The start-up module is used to start the clamping cylinder of the upper pinch roller to perform clamping and releasing actions, and to check the operating status of the upper pinch roller, which includes normal and abnormal states.
[0019] The first zeroing module is used to zero the total pressure compensation and single-sided pressure compensation of the upper pinch roller when the upper pinch roller is in normal state.
[0020] The detection module is used to press down the upper pinch roller and detect the pressure on one side of the upper pinch roller and the roller gap.
[0021] The compensation module is used to measure the actual roll gap value and compare it with the preset roll gap value when it is detected that the pressure on one side is full and the roll gap is not zero. After ruling out the abnormality of the pinch roll, the module performs roll gap zero compensation. When it is detected that the pressure on one side is not full and the roll gap is zero, the module reduces the roll gap value to increase the pressure on that side until the pressure is full.
[0022] The verification module is used to record the current roll gap position as zero after the inspection is completed, clear the roll gap zero position compensation to zero, and perform roll gap verification.
[0023] The second zeroing module is used to reset the roll gap zero compensation to zero again after the verification is completed, thus completing the calibration.
[0024] Based on the same inventive concept, the present invention also provides an electronic device, the electronic device comprising:
[0025] One or more processors;
[0026] A storage device for storing one or more programs, which, when executed by one or more processors, cause the electronic device to implement a pinch roll gap calibration method as described above.
[0027] Based on the same inventive concept, the present invention also provides a storage medium storing a computer program, which, when executed by a computer processor, causes the computer to perform a pinch roll gap calibration method as described above.
[0028] As described above, the pinch roll gap calibration method, apparatus, electronic device, and storage medium of the present invention have at least the following beneficial effects:
[0029] By activating the clamping cylinder of the upper pinch roller to perform clamping and releasing actions, the operating status of the upper pinch roller is checked to confirm that there are no abnormalities. The total pressure compensation and single-sided pressure compensation of the upper pinch roller are reset to zero to ensure that the calibration results are error-free. The upper pinch roller is pressed down, and the single-sided pressure and roll gap of the upper pinch roller are detected. When it is detected that the single-sided pressure is full and the roll gap is not zero, after ruling out the pinch roller abnormality, the actual roll gap value is measured and compared with the preset roll gap value to perform roll gap zero compensation. When it is detected that the single-sided pressure is not full and the roll gap is zero, the roll gap value is reduced to increase the pressure on that side until the pressure is reached. Once the full gauge is reached and the test is completed, the current roll gap position is recorded as zero. The roll gap zero-position compensation is then cleared to zero, roll gap adjustment is completed, and roll gap verification is performed again to avoid errors. After verification, the roll gap zero-position compensation is cleared again to complete the calibration. Compared with the static calibration method, this method greatly reduces the actual roll gap deviation and the calibration results are more accurate. Compared with the dynamic calibration method, it can quickly adjust and level the roll gap when the roll gap is uneven, the deviation is large, or the pinch rolls do not make sufficient contact or are not properly pressed. This improves the efficiency of roll gap calibration, meets the current production needs, and ensures the normal operation of subsequent production.
[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:
[0032] Figure 1 This is a flowchart illustrating an exemplary embodiment of the present application of a method for calibrating the gap of a pinch roll;
[0033] Figure 2 This is a block diagram illustrating a roll gap calibration device according to an exemplary embodiment of this application;
[0034] Figure 3 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown. Detailed Implementation
[0035] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.
[0036] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components relevant to the present invention and are not drawn according to the actual number, shape, and size of components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of the present invention, should still fall within the scope of the technical content disclosed in the present invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are only for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.
[0037] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.
[0038] In one exemplary embodiment, this application provides an exemplary method for calibrating the gap between pinch rolls. Please refer to [link to relevant documentation]. Figure 1 , Figure 1 This is a flowchart illustrating an exemplary embodiment of a pinch roll gap calibration method, the method comprising at least steps S110 to S160, detailed below:
[0039] Step S110: Start the upper pinch roller clamping cylinder to perform clamping and releasing actions, and check the operating status of the upper pinch roller. The operating status of the upper pinch roller includes normal status and abnormal status.
[0040] Step S120: When the upper pinch roller is in normal condition, reset the total pressure compensation and single-sided pressure compensation of the upper pinch roller to zero.
[0041] Step S130: Press down the upper pinch roll and check the pressure on one side of the upper pinch roll and the roll gap;
[0042] Step S140: When it is detected that the pressure on one side is full and the roll gap is not zero, after ruling out the abnormality of the pinch roll, the actual roll gap value is measured and compared with the preset roll gap value. Roll gap zero compensation is performed. When it is detected that the pressure on one side is not full and the roll gap is zero, the roll gap value is reduced to increase the pressure on that side until the pressure is full.
[0043] Step S150: After the inspection is completed, record the current roll gap position as zero, clear the roll gap zero position compensation to zero, and perform roll gap verification.
[0044] Step S160: After the verification is completed, the roll gap zero compensation is reset to zero again to complete the calibration.
[0045] Steps S110 to S160 are described in detail below:
[0046] In step S110, the upper pinch roller clamping cylinder is activated to perform clamping and releasing actions, and the operating status of the upper pinch roller is checked. The operating status of the upper pinch roller includes normal status and abnormal status.
[0047] It should be noted that abnormal conditions include jamming, misalignment, and damage of the pinch roll. When the pinch roll is in an abnormal condition, the roll gap calibration result will be inaccurate and it will be impossible to adjust and level it. When the upper pinch roll is determined to be in an abnormal condition, calibration should be stopped and the upper pinch roll should be repaired. In order to ensure the accuracy of the pinch roll roll gap calibration result, the pinch roll needs to be inspected first to ensure that there are no abnormalities in the pinch roll.
[0048] In step S120, when the upper pinch roll is in normal condition, the total pressure compensation and single-sided pressure compensation of the upper pinch roll are reset to zero. In order to ensure the accuracy of the roll gap calibration, it is necessary to ensure that the compensation of the upper pinch roll is reset to zero, so as to facilitate the subsequent adjustment and leveling of the roll gap.
[0049] In step S130, the upper pinch roll is pressed down, and the single-sided pressure and roll gap of the upper pinch roll are detected. The single-sided pressure and roll gap on both sides of the upper pinch roll need to be detected. Pressure compensation and roll gap zero-position compensation are performed based on the detection results.
[0050] In step S140, when it is detected that the pressure on one side is full and the roll gap is not zero, after ruling out the abnormality of the pinch roll, the actual roll gap value is measured and compared with the preset roll gap value to perform roll gap zero compensation. When it is detected that the pressure on one side is not full and the roll gap is zero, the roll gap value is reduced to increase the pressure on that side until the pressure is full.
[0051] When it is detected that the pressure on one side of the upper pinch roller is full and the roll gap is not zero, the upper pinch roller clamping cylinder is activated to raise the upper pinch roller to the highest position and press it down to eliminate the jamming. In the absence of jamming, the roll gap is measured to obtain the actual roll gap value. The actual roll gap value is compared with the preset roll gap value, and the roll gap value is reduced according to the comparison result to perform roll gap zero position compensation.
[0052] When it is detected that the pressure on one side of the upper pinch roll is not full and the roll gap is zero, the roll gap value is reduced to increase the pressure on that side and perform pressure compensation until the pressure on one side is full. If the pressure cannot be fully compensated, the pressure on the upper pinch roll is stopped and the roll gap zero position compensation is performed on the part where the pressure cannot be fully compensated.
[0053] In step S150, after the detection is completed, the current roll gap position is recorded as zero, the roll gap zero position compensation is cleared to zero, and the roll gap is checked. After the detection is completed, the compensated position of the 0mm roll gap is recorded as the roll gap zero position, and the zero position recording is completed.
[0054] In this embodiment, the verification is performed using preset roll gap values of 5mm, 2mm, 1mm, and 0mm. In actual production, preset roll gap values of 0.5mm, 1.5mm, and 2.5mm can also be used for verification. The actual measured value of the 0mm roll gap is compared with the preset roll gap. If the difference between the actual measured value and the preset roll gap value is within the preset error range, the verification is complete. If the difference between the actual measured value and the preset roll gap value exceeds the preset error range, roll gap zero-position compensation is performed based on the difference, and the compensated position of the 0mm roll gap is recorded as the roll gap zero position, thus completing the verification. Specifically, in this embodiment, by inputting the current roll gap zero position into the magnetic scale, it is not necessary to repeatedly search for magnetic scale data, thereby improving calibration efficiency.
[0055] In step S160, after the verification is completed, the zero-position compensation of the roll gap is reset to zero again to complete the calibration. After the zero-position compensation of the roll gap is verified and adjusted, the roll gap has been adjusted and leveled. It is necessary to reset the zero-position compensation of the roll gap to zero again to avoid the adjusted roll gap from being compensated again, which would cause errors.
[0056] It can be seen that the technical solution provided in this embodiment no longer uses static calibration and dynamic calibration methods. Instead, it activates the upper pinch roller clamping cylinder to perform clamping and releasing actions, checks the operating status of the upper pinch roller, confirms that the upper pinch roller is normal, resets the total pressure compensation and single-sided pressure compensation of the upper pinch roller to zero to ensure error-free calibration results, presses down the upper pinch roller, and detects the single-sided pressure and roll gap of the upper pinch roller. When it is detected that the single-sided pressure is full and the roll gap is not zero, after ruling out any abnormality in the pinch roller, it measures the actual roll gap value and compares it with the preset roll gap value to perform roll gap zero-position compensation. When it is detected that the single-sided pressure is not full and the roll gap is zero, it reduces the roll gap... The gap value is adjusted so that the pressure on that side increases until the pressure reaches the full value. After the test is completed, the current gap position is recorded as zero. The zero-position compensation of the gap is then cleared to complete the gap adjustment. The gap is then checked again to avoid errors. After the check is completed, the zero-position compensation of the gap is cleared again to complete the calibration. Compared with the static calibration method, this method greatly reduces the actual gap deviation and the calibration results are more accurate. Compared with the dynamic calibration method, it can quickly adjust and level the gap when the gap is uneven, the deviation is large, or the pinch rolls do not make sufficient contact or are not in place. This improves the efficiency of gap calibration, meets the current production needs, and ensures the normal operation of subsequent production.
[0057] Figure 2 This is a block diagram illustrating a roll gap calibration device according to an exemplary embodiment of this application. The device can be applied to… Figure 1 The implementation environment shown is not limited to this embodiment. This device can also be applied to other exemplary implementation environments and specifically configured in other devices. This embodiment does not limit the implementation environment to which the device is applicable.
[0058] like Figure 2 As shown, this exemplary roll gap calibration device includes: a start-up module 201, a first zeroing module 202, a detection module 203, a compensation module 204, a verification module 205, and a second zeroing module 206. Detailed descriptions of each component are as follows:
[0059] Start module 201 to start the upper pinch roller clamping cylinder to perform clamping and releasing actions, and check the operating status of the upper pinch roller, which includes normal and abnormal status.
[0060] The first zeroing module 202 is configured to zero out the total pressure compensation and single-sided pressure compensation of the upper pinch roller when the upper pinch roller is in normal state.
[0061] The detection module 203 is configured to press down the upper pinch roll and detect the pressure on one side of the upper pinch roll and the roll gap.
[0062] The compensation module 204 is configured to, when it is detected that the pressure on one side is full and the roll gap is not zero, after ruling out the abnormality of the pinch roll, measure the actual roll gap value and compare it with the preset roll gap value to perform roll gap zero compensation; when it is detected that the pressure on one side is not full and the roll gap is zero, reduce the roll gap value to increase the pressure on that side until the pressure is full.
[0063] The verification module 205 is configured to record the current roll gap position as zero after the inspection is completed, clear the roll gap zero position compensation to zero, and perform roll gap verification.
[0064] The second zeroing module 206 is configured to zero the roll gap zero compensation again after the verification is completed, thus completing the calibration.
[0065] In the roll gap calibration device provided in this application, the clamping cylinder of the upper pinch roll is activated to perform clamping and releasing actions. The operating status of the upper pinch roll is checked to confirm that there is no abnormality in the upper pinch roll. The total pressure compensation and single-sided pressure compensation of the upper pinch roll are reset to zero to ensure that the calibration results are error-free. The upper pinch roll is pressed down, and the single-sided pressure and roll gap of the upper pinch roll are detected. When it is detected that the single-sided pressure is full and the roll gap is not zero, after ruling out the abnormality of the pinch roll, the actual roll gap value is measured and compared with the preset roll gap value to perform roll gap zero compensation. When it is detected that the single-sided pressure is not full and the roll gap is zero, the roll gap value is reduced to make the pressure on that side... The pressure is increased until it reaches full capacity. After the test is completed, the current roll gap position is recorded as zero. The roll gap zero-position compensation is then cleared to complete the roll gap adjustment. The roll gap is then checked again to avoid errors. After the check is completed, the roll gap zero-position compensation is cleared again to complete the calibration. Compared with the static calibration method, this method greatly reduces the actual roll gap deviation and the calibration results are more accurate. Compared with the dynamic calibration method, it can quickly adjust and level the roll gap when the roll gap is uneven, the deviation is large, or the pinch roll pressure is insufficient or not in place. This improves the roll gap calibration efficiency, meets the current production needs, and ensures the normal operation of subsequent production.
[0066] It should be noted that the roll gap calibration device provided in the above embodiments and the roll gap calibration method for pinch rolls provided in the above embodiments belong to the same concept. The specific operation methods of each module and unit have been described in detail in the method embodiments and will not be repeated here. In practical applications, the roll gap calibration device provided in the above embodiments can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. This is not a limitation here.
[0067] Embodiments of this application also provide an electronic device, including: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the pinch roll gap calibration method provided in the above embodiments.
[0068] Figure 3 A schematic diagram of a computer system suitable for implementing the embodiments of this application is shown. It should be noted that... Figure 3 The computer system 300 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.
[0069] like Figure 3 As shown, the computer system 300 includes a Central Processing Unit (CPU) 301, which can perform various appropriate actions and processes based on programs stored in Read-Only Memory (ROM) 302 or programs loaded from storage portion 308 into Random Access Memory (RAM) 303, such as performing the methods described in the above embodiments. The RAM 303 also stores various programs and data required for system operation. The CPU 301, ROM 302, and RAM 303 are interconnected via a bus 304. An Input / Output (I / O) interface 305 is also connected to the bus 304.
[0070] The following components are connected to I / O interface 305: an input section 306 including a keyboard, mouse, etc.; an output section 307 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to I / O interface 305 as needed. Removable media 311, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 310 as needed so that computer programs read from them can be installed into storage section 308 as needed.
[0071] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 309, and / or installed from removable medium 311. When the computer program is executed by central processing unit (CPU) 301, it performs various functions defined in the system of this application.
[0072] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.
[0073] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.
[0074] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.
[0075] Another aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a computer's processor, causes the computer to perform the automatic pre-embedding of roll gaps in a rolling mill as described above. This computer-readable storage medium may be included in the electronic device described in the above embodiments, or it may exist independently and not incorporated into the electronic device.
[0076] Another aspect of this application provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the pinch roll gap calibration method provided in the various embodiments described above.
[0077] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. A method for calibrating the gap between pinch rolls, characterized in that, include: Start the upper pinch roller clamping cylinder to perform clamping and releasing actions, and check the operating status of the upper pinch roller, which includes normal and abnormal states. When the upper pinch roller is in normal condition, the total pressure compensation and single-sided pressure compensation of the upper pinch roller are reset to zero. Press down the upper pinch roller and detect the pressure on one side of the upper pinch roller and the roller gap; When it is detected that the pressure on one side is full and the roll gap is not zero, after ruling out any abnormalities in the pinch roller, the actual roll gap value is measured and compared with the preset roll gap value to perform roll gap zero-position compensation. This includes: when it is detected that the pressure on one side of the upper pinch roller is full and the roll gap is not zero, the upper pinch roller clamping cylinder is activated to raise the upper pinch roller to its highest position and press it down to eliminate any jamming. If there is no jamming, the roll gap is measured to obtain the actual roll gap value. The actual roll gap value is compared with the preset roll gap value, and the roll gap value is reduced according to the comparison result to perform roll gap zero-position compensation. When it is detected that the pressure on one side is not full and the roll gap is zero, the roll gap value is reduced to increase the pressure on that side until the pressure is full. This includes: when it is detected that the pressure on one side of the upper pinch roller is not full and the roll gap is zero, the roll gap value is reduced to increase the pressure on that side to perform pressure compensation until the pressure on one side is full. If the pressure cannot be fully compensated, the pressing down of the upper pinch roller is stopped, and roll gap zero-position compensation is performed on the part where the pressure cannot be fully compensated. After the inspection is completed, record the current roll gap position as zero, clear the roll gap zero compensation, and then perform a roll gap verification. After verification, the roll gap zero-position compensation is reset to zero again to complete the calibration.
2. The method for calibrating the gap of a pinch roll according to claim 1, characterized in that: The abnormal conditions include jamming, misalignment, and damage of the pinch roller. When the upper pinch roller is determined to be in an abnormal condition, calibration is stopped and the upper pinch roller is inspected and repaired.
3. The method for calibrating the gap of a pinch roll according to claim 1, characterized in that: After the test is completed, the compensated position of the 0mm roll gap is recorded as the roll gap zero position, and the zero position recording is completed.
4. The method for calibrating the gap of a pinch roll according to claim 1, characterized in that: The verification is performed using preset roll gap values of 5mm, 2mm, 1mm, and 0mm. The actual measured value of the 0mm roll gap is compared with the preset roll gap. If the difference between the actual measured value and the preset roll gap value is within the preset error range, the verification is complete. If the difference between the actual measured value and the preset roll gap value exceeds the preset error range, roll gap zero-position compensation is performed based on the difference, and the compensated position of the 0mm roll gap is recorded as the roll gap zero position, and the verification is completed.
5. A roll gap calibration device, characterized in that, The device includes: The start-up module is used to start the clamping cylinder of the upper pinch roller to perform clamping and releasing actions, and to check the operating status of the upper pinch roller, which includes normal and abnormal states. The first zeroing module is used to zero the total pressure compensation and single-sided pressure compensation of the upper pinch roller when the upper pinch roller is in normal state. The detection module is used to press down the upper pinch roller and detect the pressure on one side of the upper pinch roller and the roller gap. The compensation module, used to perform zero-position compensation of the roll gap when it is detected that the unilateral pressure is full and the roll gap is not zero, after ruling out any abnormality in the pinch roller, measures the actual roll gap value and compares it with a preset roll gap value. This includes: when it is detected that the unilateral pressure of the upper pinch roller is full and the roll gap is not zero, activating the upper pinch roller clamping cylinder to raise the upper pinch roller to its highest position and then press it down to eliminate any jamming; if there is no jamming, measuring the roll gap to obtain the actual roll gap value, and comparing the actual roll gap value with the preset value. The roll gap values are compared, and the roll gap value is reduced according to the comparison result to perform roll gap zero compensation. When it is detected that the pressure on one side is not full, the roll gap is zero, the roll gap value is reduced to increase the pressure on that side until the pressure is full. When it is detected that the pressure on one side of the upper pinch roll is not full, the roll gap value is reduced to increase the pressure on that side to perform pressure compensation until the pressure on one side is full. If the pressure cannot be full, the downward pressure of the upper pinch roll is stopped, and roll gap zero compensation is performed on the part where the pressure cannot be full. The verification module is used to record the current roll gap position as zero after the inspection is completed, clear the roll gap zero position compensation to zero, and perform roll gap verification. The second zeroing module is used to reset the roll gap zero compensation to zero again after the verification is completed, thus completing the calibration.
6. An electronic device, characterized in that, The electronic device includes: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the electronic device to implement a pinch roll gap calibration method as described in any one of claims 1 to 4.
7. A storage medium, characterized in that, It stores a computer program, which, when executed by the computer's processor, causes the computer to perform a pinch roll gap calibration method according to any one of claims 1 to 4.