Straightening machine control system

Abstract

The present invention relates to the field of metallurgical electrical control technology, and discloses a straightening machine control system. The system comprises: a remote input and output unit receives an input signal of a straightening machine device; a programmable logic controller is respectively connected to the remote input and output unit and a transmission control unit for communication, receives an input signal and transmits it to the transmission control unit; the transmission control unit confirms the current state of the straightening machine device according to the input signal, and outputs an adjustment signal to the programmable logic controller according to the current state; the programmable logic controller transmits the adjustment signal to the remote input and output unit; the remote input and output unit adjusts the working state of the straightening machine device according to the adjustment signal. In the present invention, a transmission control unit is used to improve programming efficiency, and the calculation function of the transmission control unit is reasonably used for signal processing, so as to reduce the load of the programmable logic controller, facilitate the control of the unit, reduce costs and increase benefits. The system is safe, reliable, easy to operate, and has a low failure rate when running well.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical electrical control, and in particular to a straightening machine control system. Background Art

[0002] At present, straightening machines are widely used in the metallurgical industry, such as pickling units, black flat mills, and hot rolling and leveling units to improve the shape of strips or steel plates. However, the existing straightening machine control systems generally use FM458 control systems or TDC control systems, which have problems such as the control system equipment has been discontinued or rarely used, inconvenient to use, and difficult to transplant the control system program.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a straightening machine control system, aiming to solve the technical problems of the existing straightening machine control system having complicated operation, high failure rate and difficult transplantation of the control system program.

[0005] To achieve the above object, the present invention provides a straightening machine control system, the straightening machine control system comprising:

[0006] A remote input and output unit, used to receive input signals from the straightening machine equipment;

[0007] a programmable logic controller, respectively connected to the remote input and output unit and the transmission control unit for receiving the input signal and transmitting the input signal to the transmission control unit;

[0008] The transmission control unit is used to confirm the current state of the straightening machine device according to the input signal, and output an adjustment signal to the programmable logic controller according to the current state;

[0009] The programmable logic controller is further used to transmit the adjustment signal to the remote input and output unit;

[0010] The remote input and output unit is also used to adjust the working state of the straightening machine equipment according to the adjustment signal.

[0011] In some embodiments, the straightening machine control system further includes: an engineer station and a human-machine interactive operation station; wherein,

[0012] The programmable logic controller is respectively connected to the engineer station and the human-machine interactive operation station for communication, and is also used to receive position information input by the engineer station and the human-machine interactive operation station, and transmit the position information to the transmission control unit;

[0013] The transmission control unit is further used to output a straightening signal to the programmable logic controller according to the position information;

[0014] The programmable logic controller is also used to transmit the straightening signal to the remote input and output unit, so that the remote input and output unit adjusts the position of the straightening machine equipment according to the straightening signal to achieve the straightening target.

[0015] In some embodiments, the remote input and output unit is specifically used to receive the position signal and / or the operating console input signal and / or the detection signal of the straightening machine equipment, wherein the position signal includes at least one of the inlet operation side sensor signal, the transmission side pressure displacement sensor signal, the outlet operation side sensor signal and the transmission side pressure displacement sensor signal, the operating console input signal includes at least one of the emergency stop command, the quick open command, the pressure command and the open command, and the detection signal includes the rolling force detection signal of the straightening machine pressure cylinder.

[0016] In some embodiments, the remote input and output unit is specifically used to output a proportional valve signal and / or an operating console output signal to the straightener equipment to adjust the working state of the straightener equipment, wherein the proportional valve signal includes at least one of an inlet operating side hydraulic valve signal, a transmission side depression displacement hydraulic valve signal, an outlet operating side hydraulic valve signal and a transmission side depression displacement hydraulic valve signal, and the operating console output signal includes at least one of an emergency stop indicator light signal, a quick open indicator light signal, a depression indicator light signal and an open indicator light signal.

[0017] In some embodiments, the transmission control unit is specifically used to confirm the actual rolling force and actual position value of the straightening machine equipment according to the input signal, and output an adjustment signal to the programmable logic controller according to the actual rolling force and actual position value.

[0018] In some embodiments, the transmission control unit is specifically used to confirm the working status of the straightening machine equipment according to the input signal, and output an adjustment signal to the programmable logic controller according to the working status, wherein the working status includes at least one of emergency stop, quick open, pressing down and lifting and / or the rolling force and position mode of the straightening machine.

[0019] In some embodiments, the transmission control unit is specifically used to confirm the current rolling force of the straightening machine equipment according to the input signal, and output an adjustment signal according to the preset rolling force and the current rolling force, so as to separately adjust the rolling force on each side of the straightening machine equipment to ensure balance.

[0020] In some embodiments, the transmission control unit is specifically used to confirm the reference position of the straightening machine equipment according to the input signal, and output an adjustment signal according to a preset roller gap position and the reference position to achieve position following of the straightening machine equipment; wherein the reference position includes the roller gap position on the entrance operating side of the straightening machine.

[0021] In some embodiments, the transmission control unit is specifically used to confirm the reference position of the straightening machine equipment according to the input signal, and output an adjustment signal according to a preset tilt position and the reference position to achieve position tilt control of the straightening machine equipment; wherein the reference position includes the roller gap position on the straightening machine entrance operating side.

[0022] In some embodiments, the programmable logic controller exchanges data with the transmission control unit and the remote input and output unit via a PROFINET protocol communication connection;

[0023] The engineer station and the human-machine interactive operation station exchange data with the programmable logic controller via an Ethernet communication connection.

[0024] The present invention provides a straightening machine control system, the straightening machine control system comprises: a remote input and output unit for receiving an input signal of a straightening machine device; a programmable logic controller, which is respectively connected to the remote input and output unit and a transmission control unit for receiving the input signal and transmitting the input signal to the transmission control unit; the transmission control unit is used to confirm the current state of the straightening machine device according to the input signal, and output an adjustment signal to the programmable logic controller according to the current state; the programmable logic controller is also used to transmit the adjustment signal to the remote input and output unit; the remote input and output unit is also used to adjust the working state of the straightening machine device according to the adjustment signal. In the present invention, the function block of the transmission control unit is used to greatly improve the programming efficiency, reduce the debugging time, and reasonably use the calculation function of the transmission control unit for signal processing, so that the load of the programmable logic controller is reduced, which is more conducive to the control of the unit, and at the same time reduces the cost of the system and increases the economic benefits of the unit. The straightening machine control system of the present invention is safe and reliable, easy to operate, runs well, and has a low failure rate, which solves the technical problems of the existing straightening machine control system with cumbersome operation and high failure rate and difficult transplantation of the control system program. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a straightening machine control system according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the program structure of a straightening machine control system according to an embodiment of the present invention.

[0027] Explanation of reference numerals: 100 - remote input and output unit, 200 - programmable logic controller, 300 - transmission control unit, 400 - engineer station, 500 - human-machine interaction operation station.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] The invention provides a straightening machine control system.

[0033] Reference Figure 1 , Figure 1 It is a schematic diagram of the structure of a straightening machine control system according to an embodiment of the present invention.

[0034] like Figure 1 As shown, the straightening machine control system comprises:

[0035] A remote input and output unit 100, for receiving input signals from the straightening machine device;

[0036] The programmable logic controller 200 is respectively connected to the remote input and output unit 100 and the transmission control unit 300 for receiving the input signal and transmitting the input signal to the transmission control unit 300;

[0037] The transmission control unit 300 is used to confirm the current state of the straightening machine device according to the input signal, and output an adjustment signal to the programmable logic controller 200 according to the current state;

[0038] The programmable logic controller 200 is also used to transmit the adjustment signal to the remote input and output unit 100;

[0039] The remote input and output unit 100 is also used to adjust the working state of the straightening machine equipment according to the adjustment signal.

[0040] It should be noted that this embodiment is described by taking a straightening machine control system of a multi-roller straightening machine as an example. For example, the straightening machine control system proposed in this embodiment includes but is not limited to a remote input and output unit 100, a programmable logic controller 200, and a transmission control unit 300, and the communication connection between the remote input and output unit 100, the programmable logic controller 200, and the transmission control unit 300 can perform data transmission.

[0041] In one example, the remote input and output unit 100 may be a remote IO station, and the remote input and output unit 100 includes: an input part and an output part. The input part includes but is not limited to a position signal of the straightening machine device and / or an input signal and / or a detection signal from the operation console. The output part includes but is not limited to outputting a proportional valve signal and / or an output signal from the operation console to the straightening machine device.

[0042] In one example, the programmable logic controller 200 is respectively connected to the remote input and output unit 100 and the transmission control unit 300 for communication, and can be used to receive the input signal and transmit the input signal to the transmission control unit 300 for processing. The programmable logic controller 200 also includes a master control program, a sequence control program or an input command and status display of a human-machine interface (HMI) for processing the machine group. It should be noted that the programmable logic controller 200 can adopt an S7-1518 controller, and this embodiment does not limit the specific model of the programmable logic controller 200.

[0043] It is understandable that the transmission control unit 300 exchanges data with the programmable logic controller 200. Specifically, the transmission control unit 300 confirms the current state of the straightening machine device according to the input signal, and outputs an adjustment signal to the programmable logic controller 200 according to the current state.

[0044] Exemplarily, the CFC function block of the transmission control unit 300 can be used to greatly improve programming efficiency and reduce debugging time. It should be noted that the full name of CFC is continuous function chart, which is translated into continuous control chart in Chinese. The CFC function block of the transmission control unit 300 can be based on the editor of the graphical user interface, by specifying parameters or establishing connections to pre-edited blocks, so as to create a CPU program structure. In addition, the reasonable use of the calculation function of the transmission control unit 300 can reduce the load of the programmable logic controller 200, i.e., PLC, which is more conducive to the control of the unit, while reducing the cost of the system and increasing the economic benefits of the unit.

[0045] In one example, the transmission control unit 300 exchanges data with the programmable logic controller 200 to transmit an output signal, i.e., an adjustment signal, and the programmable logic controller 200 transmits the adjustment signal to the remote input and output unit 100; the remote input and output unit 100 adjusts the straightening machine roll gap or rolling force of the straightening machine equipment according to the adjustment signal.

[0046] Exemplarily, the control process of the straightening machine control system includes: the remote input and output unit 100 receives an input signal, which may include the position, rolling force and target roll gap of the straightening machine obtained by the sensor; the programmable logic controller 200 processes the input signal or transmits the input signal to the transmission control unit 300 through the programmable logic controller 200 to process the input signal, and specifically, the program obtains the current state of the straightening machine according to the input command logic; the programmable logic controller 200 transmits the output signal or the transmission control unit 300 transmits the output signal through the programmable logic controller 200, wherein the programmable logic controller 200 exchanges data with the transmission control unit 300; and the roll gap or rolling force of the straightening machine is adjusted according to the output signal. It should be noted that the working state of the straightening machine equipment is detected in real time by the signal acquisition device, and the straightening machine control system monitors the roll gap and rolling force and state of the straightening machine in real time, and updates the output signal to achieve precise rolling force control and roll gap control.

[0047] In this embodiment, the straightening machine control system uses the transmission control unit 300 to control the calibration, pressing, lifting, quick opening and other actions of the straightening machine to achieve precise rolling force control and roll gap control to meet the needs of various processes.

[0048] The present embodiment provides a straightening machine control system, which includes: a remote input and output unit 100, used to receive an input signal of a straightening machine device; a programmable logic controller 200, which is respectively communicated with the remote input and output unit 100 and a transmission control unit 300, and is used to receive the input signal and transmit the input signal to the transmission control unit 300; the transmission control unit 300 is used to confirm the current state of the straightening machine device according to the input signal, and output an adjustment signal to the programmable logic controller 200 according to the current state; the programmable logic controller 200 is also used to transmit the adjustment signal to the remote input and output unit 100; the remote input and output unit 100 is also used to adjust the working state of the straightening machine device according to the adjustment signal. In this embodiment, the use of the functional blocks of the transmission control unit 300 can greatly improve programming efficiency, reduce debugging time, and reasonably utilize the computing function of the transmission control unit for signal processing, so that the load of the programmable logic controller 200 is reduced, which is more conducive to the control of the unit. At the same time, it reduces the cost of the straightening machine control system and increases the economic benefits of the unit. The straightening machine control system in this embodiment is safe and reliable, easy to operate, runs well, and has a low failure rate. It solves the technical problems of the existing straightening machine control system that is cumbersome to operate, has a high failure rate, and is difficult to transplant the control system program.

[0049] In some embodiments, reference Figure 1 The straightening machine control system further includes: an engineer station 400 and a human-machine interactive operation station 500; wherein,

[0050] The programmable logic controller 200 is respectively connected to the engineer station 400 and the human-machine interactive operation station 500 for communication, and is also used to receive the position information input by the engineer station 400 and the human-machine interactive operation station 500, and transmit the position information to the transmission control unit 300;

[0051] The transmission control unit 300 is further used to output a straightening signal to the programmable logic controller 200 according to the position information;

[0052] The programmable logic controller 200 is also used to transmit the straightening signal to the remote input and output unit 100, so that the remote input and output unit 100 adjusts the position of the straightening machine equipment according to the straightening signal to achieve the straightening target.

[0053] In one example, the straightening machine control system further includes: an engineer station 400 and a human-machine interaction (HMI) operation station 500, and the programmable logic controller 200 processes the main control program, sequence control program or input command and status display of the unit. For example, through the on-site human-machine interaction (HMI) operation station 500, the power supply to the transmission motor is cut off on the operating table to avoid damage to the transmission motor and its power supply device due to frequent and severe overload during the processing of abnormal signals.

[0054] Exemplarily, position information is input through the human-machine interaction operation station 500, and the position information is transmitted to the transmission control unit 300 via the programmable logic controller 200. The transmission control unit 300 outputs a straightening signal to the programmable logic controller 200 according to the position information; the programmable logic controller 200 transmits the straightening signal to the remote input and output unit 100, so that the remote input and output unit 100 adjusts the position of the straightening machine equipment according to the straightening signal to achieve the straightening target.

[0055] Exemplarily, the control process of the straightening machine control system includes: the remote input and output unit 100 obtains the input signal of the straightening machine, including the relevant operation input signal of the straightening machine; the programmable logic controller 200 processes the input signal or transmits the input signal to the transmission control unit 300 through the programmable logic controller 200 to process the input signal, and outputs the signal in the transmission control unit 300 through logic processing according to the input signal; the programmable logic controller 200 transmits the output signal or the transmission control unit 300 transmits the output signal through the programmable logic controller 200. Detect the state of the straightening machine, and update the input signal and output signal in real time.

[0056] In one example, the output signal of the transmission control unit 300 is transmitted to the relevant field equipment of the straightening machine, such as hydraulic servo valve, quick opening valve, etc., through the output module of the programmable logic controller 200. In another example, the transmission control unit 300 adjusts the position of the straightening machine according to the input position of the human-machine interactive operation station 500 to achieve the straightening target.

[0057] In some embodiments, the remote input and output unit 100 is specifically used to receive the position signal and / or the operating console input signal and / or the detection signal of the straightening machine equipment, wherein the position signal includes at least one of the inlet operation side sensor signal, the transmission side pressure displacement sensor signal, the outlet operation side sensor signal and the transmission side pressure displacement sensor signal, the operating console input signal includes at least one of the emergency stop command, the quick open command, the pressure command and the open command, and the detection signal includes the rolling force detection signal of the straightening machine pressure cylinder.

[0058] Specifically, the remote input and output unit 100 may be a remote IO station, and the remote input and output unit 100 includes: an input part and an output part. The input part includes but is not limited to a position signal of the straightening machine equipment and / or an input signal from the operating console and / or a detection signal.

[0059] Exemplarily, the input part includes: the position signal of the straightening machine equipment: including the position signals collected by the entrance operation side, the transmission side pressing displacement sensor, the exit operation side and the transmission side pressing displacement sensor; the input signal of the operating table: emergency stop, quick start, pressing, and opening commands; the rolling force detection signal of the straightening machine pressing cylinder. It should be noted that this embodiment does not limit the specific input signal of the remote input and output unit 100, and it can be set according to actual conditions.

[0060] In some embodiments, the remote input and output unit 100 is specifically used to output a proportional valve signal and / or an operating console output signal to the straightener equipment to adjust the working state of the straightener equipment, wherein the proportional valve signal includes at least one of an inlet operating side hydraulic valve signal, a transmission side depression displacement hydraulic valve signal, an outlet operating side hydraulic valve signal and a transmission side depression displacement hydraulic valve signal, and the operating console output signal includes at least one of an emergency stop indicator light signal, a quick open indicator light signal, a depression indicator light signal and an open indicator light signal.

[0061] Specifically, the output part includes but is not limited to outputting proportional valve signals and / or operating table output signals to the straightening machine equipment. Exemplarily, the output part includes: proportional valve signals of the straightening machine equipment: valve signals of the hydraulic valves pressing down and displacing on the inlet operation side and the transmission side, and valve signals of the hydraulic valves pressing down and displacing on the outlet operation side and the transmission side; output signals of the operating table: indicator lights such as emergency stop, quick open, press down and open.

[0062] In some embodiments, reference Figure 2 The transmission control unit 300 is specifically used to confirm the actual rolling force and actual position value of the straightening machine equipment according to the input signal, and output an adjustment signal to the programmable logic controller 200 according to the actual rolling force and actual position value.

[0063] In one example, the transmission control unit 300 includes a plurality of program function diagrams, such as Figure 2 As shown, this embodiment is described by taking the transmission control unit 300 including six program function diagrams as an example. In actual applications, the program functions of the transmission control unit 300 can be set according to actual needs.

[0064] It should be noted that the CFC function blocks of the transmission control unit 300 can be based on a graphical user interface editor, by specifying parameters or establishing connections to pre-edited blocks, so as to create a CPU program structure. Specifically, the SHEETA program functions of the transmission control unit 300 include actual rolling force processing of the straightening machine and actual position value processing of the straightening machine.

[0065] In some embodiments, reference Figure 2 The transmission control unit 300 is specifically used to confirm the working state of the straightening machine equipment according to the input signal, and output an adjustment signal to the programmable logic controller 200 according to the working state, wherein the working state includes at least one of emergency stop, quick start, pressing down and lifting and / or the rolling force and position mode of the straightening machine.

[0066] In one example, the SHEET B program functions of the transmission control unit 300 include: processing of the input state of the straightening machine: such as emergency stop, quick start, pressing down, lifting up, etc.; and processing of the rolling force and position mode of the straightening machine.

[0067] In some embodiments, reference Figure 2 The transmission control unit 300 is specifically used to confirm the current rolling force of the straightening machine equipment according to the input signal, and output an adjustment signal according to the preset rolling force and the current rolling force, so as to separately adjust the rolling force on each side of the straightening machine equipment to ensure balance.

[0068] Specifically, the SHEET C program functions of the transmission control unit 300 include: rolling force program processing of the straightening machine: input the set rolling force, adjust the rolling force on each side separately to ensure balance; if there is an abnormality, output an abnormal signal.

[0069] For example, if the SHEET C program of the transmission control unit 300 is abnormal when processing the rolling force program of the straightening machine, an abnormal signal is output. The abnormal signal is transmitted to the human-machine interaction (HMI) operation station 500 via the programmable logic controller 200 for abnormal status display, and the power supply to the transmission motor can be cut off on the operation table through the on-site human-machine interaction (HMI) operation station 500 to avoid damage to the transmission motor and its power supply device due to the abnormal signal during the processing of the abnormal signal.

[0070] In some embodiments, reference Figure 2 The transmission control unit 300 is specifically used to confirm the reference position of the straightening machine device according to the input signal, and output an adjustment signal according to the preset roller gap position and the reference position to achieve the position following of the straightening machine device; wherein the reference position includes the roller gap position on the entrance operation side of the straightening machine.

[0071] Specifically, the SHEET D program functions of the transmission control unit 300 include: position control program processing of the straightening machine: input the roll gap setting position, with the roll gap position on the entrance operation side of the straightening machine as the reference, and the other side calls the PI control function according to this position to perform position following control; if there is an abnormality, an abnormal signal is output.

[0072] For example, if the SHEET D program of the transmission control unit 300 is abnormal when processing the position control program of the straightening machine, an abnormal signal is output. The abnormal signal is transmitted to the human-machine interaction (HMI) operation station 500 via the programmable logic controller 200 for abnormal status display, and the power supply to the transmission motor can be cut off on the operation table through the on-site human-machine interaction (HMI) operation station 500 to avoid damage to the transmission motor and its power supply device due to the abnormal signal during the processing of the abnormal signal.

[0073] In some embodiments, reference Figure 2 The transmission control unit 300 is specifically used to confirm the reference position of the straightening machine device according to the input signal, and output an adjustment signal according to a preset tilt position and the reference position to achieve position tilt control of the straightening machine device; wherein the reference position includes the roller gap position on the straightening machine entrance operating side.

[0074] Specifically, the SHEET E program functions of the transmission control unit 300 include: tilt control program processing of the straightener: input the tilt setting position, take the roller gap position on the inlet side of the straightener as the reference, and call the PI control function on the outlet side to perform position control according to the inlet roller gap position and the tilt position; if there is an abnormality, output an abnormal signal.

[0075] For example, if the SHEET E program of the transmission control unit 300 is abnormal when processing the tilt control program of the straightening machine, an abnormal signal is output. The abnormal signal is transmitted through the programmable logic controller 200 to the human-machine interaction (HMI) operation station 500 for abnormal status display, and the power supply to the transmission motor can be cut off on the operation table through the on-site human-machine interaction (HMI) operation station 500 to avoid damage to the transmission motor and its power supply device due to the abnormal signal during the processing of the abnormal signal.

[0076] In some embodiments, reference Figure 2 The SHEET F program functions of the transmission control unit 300 include: proportional valve output processing of the straightening machine: output signal processing of the inlet operation side proportional valve, the inlet transmission side proportional valve, the outlet operation side proportional valve and the outlet transmission side proportional valve; mode output processing.

[0077] Exemplarily, the SHEET F program of the transmission control unit 300 performs proportional valve output processing of the straightener and outputs a proportional valve signal, wherein the proportional valve signal includes valve signals of the inlet operation side, the transmission side pressing down displacement hydraulic valve, and the outlet operation side, the transmission side pressing down displacement hydraulic valve. The proportional valve signal is transmitted to the straightener device via the remote input and output unit 100 to adjust the working state of the straightener device.

[0078] In some embodiments, reference Figure 1 , the programmable logic controller 200, the transmission control unit 300, and the remote input and output unit 100 are connected to exchange data via PROFINET protocol communication;

[0079] The engineer station 400 and the human-machine interactive operation station 500 exchange data with the programmable logic controller 200 via Ethernet communication connection.

[0080] Specifically, Figure 1 As shown, the straightening machine control system includes: a remote input and output unit 100, a programmable logic controller 200, a transmission control unit 300, an engineer station 400 and a human-machine interactive operation station 500; wherein, the programmable logic controller 200, the transmission control unit 300 and the remote input and output unit 100 are connected to exchange data via PROFINET, and the engineer station 400 and the human-machine interactive operation station 500 are connected to exchange data with the programmable logic controller 200 via Ethernet. It can be understood that PROFINET is an open industrial Ethernet communication protocol, which applies TCP / IP and related standards of information technology and is a real-time industrial Ethernet.

[0081] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0082] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0083] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0084] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0085] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0086] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A straightening machine control system, characterized in that: The straightening machine control system comprises: A remote input and output unit, used to receive input signals from the straightening machine equipment; a programmable logic controller, respectively connected to the remote input and output unit and the transmission control unit for receiving the input signal and transmitting the input signal to the transmission control unit; The transmission control unit is used to confirm the current state of the straightening machine equipment according to the input signal, and output an adjustment signal to the programmable logic controller according to the current state; wherein the transmission control unit includes six CFC function blocks, the first CFC function block includes the actual rolling force processing of the straightening machine and the actual position value processing of the straightening machine; the second CFC function block includes the input state processing of the straightening machine and the rolling force and position mode processing of the straightening machine; the third CFC function block includes the rolling force program processing of the straightening machine; the fourth CFC function block includes the position control program processing of the straightening machine; the fifth CFC function block includes the inclination control program processing of the straightening machine; the sixth CFC function block includes the proportional valve output processing of the straightening machine; the SHEETA program function of the transmission control unit includes the actual rolling force processing of the straightening machine and the actual position value processing of the straightening machine; the SHEET B program function of the transmission control unit includes: the input state processing of the straightening machine, emergency stop, quick start, pressing down, lifting processing; the rolling force and position mode processing of the straightening machine; the SHEET B program function of the transmission control unit includes: The C program functions include: the rolling force program processing of the straightener: input the set rolling force, and adjust the rolling force of each side separately to ensure balance; if there is an abnormality, an abnormal signal is output; the SHEET D program functions of the transmission control unit include: the position control program processing of the straightener: input the roll gap set position, take the roll gap position on the entrance operation side of the straightener as the reference, and the other sides can call the PI control function according to this position to perform position following control; if there is an abnormality, an abnormal signal is output; the SHEETE program functions of the transmission control unit include: the tilt control program processing of the straightener: input the tilt set position, take the roll gap position on the entrance side of the straightener as the reference, and the exit side can call the PI control function according to the entrance roll gap position and the tilt position to perform position control; if there is an abnormality, an abnormal signal is output; the SHEET D program functions of the transmission control unit include: the tilt control program processing of the straightener: input the tilt set position, take the roll gap position on the entrance side of the straightener as the reference, and the exit side can call the PI control function according to the entrance roll gap position and the tilt position to perform position control; if there is an abnormality, an abnormal signal is output; The F program performs output processing of the proportional valve of the straightening machine, and outputs a proportional valve signal, wherein the proportional valve signal includes valve signals of the hydraulic valve pressing down the displacement on the inlet operation side and the transmission side, and the hydraulic valve pressing down the displacement on the outlet operation side and the transmission side. The proportional valve signal is transmitted to the straightening machine device via a remote input and output unit to adjust the working state of the straightening machine device; The programmable logic controller is further used to transmit the adjustment signal to the remote input and output unit; The remote input and output unit is also used to adjust the working state of the straightening machine equipment according to the adjustment signal.

2. The straightening machine control system according to claim 1, characterized in that: The straightening machine control system also includes: an engineer station and a human-machine interactive operation station; wherein, The programmable logic controller is respectively connected to the engineer station and the human-machine interactive operation station for communication, and is also used to receive position information input by the engineer station and the human-machine interactive operation station, and transmit the position information to the transmission control unit; The transmission control unit is further used to output a straightening signal to the programmable logic controller according to the position information; The programmable logic controller is also used to transmit the straightening signal to the remote input and output unit, so that the remote input and output unit adjusts the position of the straightening machine equipment according to the straightening signal to achieve the straightening target.

3. The straightening machine control system according to claim 1, characterized in that: The remote input and output unit is specifically used to receive the position signal and / or the operating console input signal and / or the detection signal of the straightening machine equipment, wherein the position signal includes at least one of the inlet operation side sensor signal, the transmission side pressure displacement sensor signal, the outlet operation side sensor signal and the transmission side pressure displacement sensor signal; the operating console input signal includes at least one of the emergency stop command, the quick open command, the pressure command and the open command; and the detection signal includes the rolling force detection signal of the straightening machine pressure cylinder.

4. The straightening machine control system according to claim 1, characterized in that: The remote input and output unit is specifically used to output a proportional valve signal and / or an operating console output signal to the straightening machine equipment to adjust the working state of the straightening machine equipment, wherein the proportional valve signal includes at least one of an inlet operating side hydraulic valve signal, a transmission side depression displacement hydraulic valve signal, an outlet operating side hydraulic valve signal and a transmission side depression displacement hydraulic valve signal, and the operating console output signal includes at least one of an emergency stop indicator light signal, a quick open indicator light signal, a depression indicator light signal and an open indicator light signal.

5. The straightening machine control system according to claim 1, characterized in that: The transmission control unit is specifically used to confirm the actual rolling force and actual position value of the straightening machine equipment according to the input signal, and output an adjustment signal to the programmable logic controller according to the actual rolling force and actual position value.

6. The straightening machine control system according to claim 1, characterized in that: The transmission control unit is specifically used to confirm the working status of the straightening machine equipment according to the input signal, and output an adjustment signal to the programmable logic controller according to the working status, wherein the working status includes at least one of emergency stop, quick start, pressing down and lifting and / or the rolling force and position mode of the straightening machine.

7. The straightening machine control system according to claim 1, characterized in that: The transmission control unit is specifically used to confirm the current rolling force of the straightening machine equipment according to the input signal, and output an adjustment signal according to the preset rolling force and the current rolling force, so as to separately adjust the rolling force on each side of the straightening machine equipment to ensure balance.

8. The straightening machine control system according to claim 1, characterized in that: The transmission control unit is specifically used to confirm the reference position of the straightening machine equipment according to the input signal, and output an adjustment signal according to a preset roller gap position and the reference position to achieve position following of the straightening machine equipment; wherein the reference position includes the roller gap position on the entrance operating side of the straightening machine.

9. The straightening machine control system according to claim 1, characterized in that: The transmission control unit is specifically used to confirm the reference position of the straightening machine equipment according to the input signal, and output an adjustment signal according to a preset tilt position and the reference position to achieve position tilt control of the straightening machine equipment; wherein the reference position includes the roller gap position on the straightening machine entrance operating side.

10. The straightening machine control system according to claim 2, characterized in that: The programmable logic controller exchanges data with the transmission control unit and the remote input and output unit through PROFINET protocol communication connection; The engineer station and the human-machine interactive operation station exchange data with the programmable logic controller via an Ethernet communication connection.

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