A pouring control method and device, a storage medium and an electronic device

Abstract

The application discloses a pouring control method and device, a storage medium and an electronic device. The method comprises the following steps: receiving an initial pouring relationship curve sent by a display interface; when the thickness of a casting piece changes, obtaining a target pouring relationship curve corresponding to the production process of a to-be-processed casting piece, which is calculated based on the initial pouring relationship curve and the thickness of the to-be-processed casting piece; in response to a received pouring start signal, starting timing and generating a tilting control signal according to the target pouring relationship curve; and controlling a crucible to perform constant-flow tilting pouring operation according to each target crucible angle setting value and each target tilting time setting value in the target pouring relationship curve based on the tilting control signal. In the case that the thickness of the casting piece changes, the target pouring relationship curve is directly calculated, manual adjustment of parameter values on the tilting controller instrument is not needed, and thus the work amount is saved and the work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum induction casting furnace, in particular to a pouring control method and device, a storage medium and an electronic device. BACKGROUND

[0002] The vacuum induction casting furnace is a vacuum rapid solidification device for melting, refining, pouring, rapid solidification and cooling of pure neodymium iron boron metal raw materials under vacuum or inert atmosphere conditions. The vacuum induction casting furnace pours molten steel in a constant flow manner. The prior art is to manually input the initial pouring curve into the tilting controller. It is very troublesome and prone to errors to manually input the pouring curve into the tilting controller. In the case of a change in the thickness of the cast sheet, the time for the tilting controller to run at a unit angle needs to be calculated manually. Then the time variable of each step is manually input into the tilting controller, which increases the workload and is prone to errors. SUMMARY

[0003] Therefore, the present application provides a pouring control method and device, a storage medium and an electronic device, which mainly aims to solve the problem that the time for the tilting controller to run at a unit angle needs to be calculated manually in the case of a change in the thickness of the cast sheet, and then the time variable of each step is manually input into the tilting controller, which increases the workload and is prone to errors.

[0004] To solve the above problems, the present application provides a pouring control method, comprising:

[0005] receiving an initial pouring relationship curve sent by a display interface, the initial pouring relationship curve being a relationship curve containing initial crucible angle setting values and initial pouring time setting values;

[0006] when the thickness of the cast sheet changes, obtaining a target pouring relationship curve corresponding to the production process of the cast sheet to be processed based on the initial pouring relationship curve and the thickness of the cast sheet to be processed;

[0007] in response to the received pouring start signal, starting timing and generating a tilting control signal according to the target pouring relationship curve;

[0008] controlling the crucible to perform constant-flow pouring operation according to the target pouring relationship curve based on the tilting control signal and the target crucible angle setting values and the target pouring time setting values in the target pouring relationship curve.

[0009] Optionally, the receiving of the initial pouring relationship curve sent by the display interface specifically comprises:

[0010] receiving the initial pouring relationship curve sent by the operation table display interface through the RS485 communication protocol.

[0011] The initial pouring relationship curve is generated in response to a drawing operation of a user on the display interface; or

[0012] The initial pouring relationship curve is generated in response to reading a preset format file stored in a preset storage device into the display interface.

[0013] Optionally, when the casting design thickness changes, a target pouring relationship curve corresponding to the casting production process of the to-be-processed thickness is generated based on the initial pouring relationship curve and the to-be-processed thickness, and specifically includes:

[0014] Based on the to-be-processed thickness, the total production time for producing the to-be-processed casting is determined;

[0015] Based on the total production time and the initial total production time corresponding to the initial pouring relationship curve, a change coefficient of the unit angle running time is calculated and obtained;

[0016] Based on the change coefficient, a target pouring time setting value corresponding to each target pouring angle setting value for generating the target pouring relationship curve is calculated and obtained;

[0017] The target pouring relationship curve is generated based on each target pouring angle setting value and each target pouring time setting value.

[0018] Optionally, the method further includes:

[0019] When the casting design thickness is unchanged, in response to the received pouring start signal, the timing is started and the inclination control signal corresponding to the initial pouring relationship curve is generated according to the initial pouring relationship curve;

[0020] Based on the inclination control signal, the crucible is controlled to perform constant-flow pouring operation according to each initial crucible angle setting value and each initial pouring time setting value in the initial pouring relationship curve.

[0021] Optionally, the constant-flow pouring operation of the crucible according to each crucible angle setting value and each pouring time setting value in the target pouring relationship curve based on the inclination control signal specifically includes:

[0022] Based on the inclination control signal, the hydraulic proportional valve amplifier is driven to control the crucible to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve;

[0023] The real-time rotation signal of the crucible is obtained, and the real-time rotation signal is collected by a rotation encoder;

[0024] calculating a real-time pouring angle value of the crucible based on the real-time rotation signal;

[0025] correcting the tilting control signal based on the real-time pouring angle value and the target pouring relationship curve, so that the real-time pouring angle value is consistent with the target crucible angle setting value of the target pouring relationship curve.

[0026] Optionally, before receiving the initial pouring relationship curve sent by the display interface, the method further comprises:

[0027] based on a preset angle interval, collecting each sampling point of the manual tilting of the crucible in advance, each of the sampling points comprising each historical crucible pouring angle value and each historical pouring time value corresponding to each historical crucible pouring angle value;

[0028] generating a manual pouring curve corresponding to the manual tilting process based on the mapping relationship of each historical crucible pouring angle value and each historical time value;

[0029] controlling the crucible to perform a constant-flow pouring operation according to each historical crucible pouring angle value and each historical pouring time value in the manual pouring relationship curve based on the manual pouring curve as the initial pouring relationship curve.

[0030] Optionally, the method further comprises:

[0031] real-time display of each parameter data of the pouring process on the operation platform display interface, alarm and control of the pouring process to stop running when each of the parameter data is abnormal, the parameter data comprising one or more of the following: pouring remaining time, real-time rotation angle value, real-time crucible angle setting value, voltage output percentage, and pouring curve code.

[0032] To solve the above problems, the present application provides a pouring control device, comprising:

[0033] an initial pouring relationship curve obtaining module configured to receive an initial pouring relationship curve sent by a display interface, the initial pouring relationship curve being a relationship curve comprising each initial crucible angle setting value and each initial pouring time setting value;

[0034] a target pouring relationship curve obtaining module configured to, when the thickness of the cast strip changes, obtain a target pouring relationship curve corresponding to the production process of the to-be-processed cast strip based on the initial pouring relationship curve and the thickness of the to-be-processed cast strip;

[0035] a tilting control signal generating module configured to, in response to receiving a pouring start signal, start timing and generate a tilting control signal according to the target tilting relationship curve;

[0036] Pouring control module: for controlling the crucible to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve based on the tilting control signal.

[0037] To solve the above problems, the application provides a storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the pouring control method.

[0038] To solve the above problems, the application provides an electronic device, which at least includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the pouring control method when executing the computer program on the memory.

[0039] The application obtains an initial pouring relationship curve, which is a display interface near a pouring operation platform, receives an initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is a relationship curve containing each initial crucible angle setting value and each initial pouring time setting value, obtains a target pouring relationship curve corresponding to the production process of a to-be-processed cast sheet based on the initial pouring relationship curve and the thickness of the to-be-processed cast sheet when the thickness of the cast sheet changes, starts timing and generates a tilting control signal according to the target pouring relationship curve in response to a received pouring start signal, and controls the crucible to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve based on the tilting control signal. The application receives the initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is manually set on the display interface or imported to the display interface through a storage device after being edited on a pc or the like, and then written to a tilting controller by the display interface, which is convenient to operate, each target pouring angle setting value and each target pouring time setting value corresponding to the to-be-generated target pouring relationship curve are directly calculated by the PLC when the thickness of the cast sheet changes, and then the target pouring relationship curve is obtained, so that manual adjustment of parameter values on the tilting controller instrument is not needed, work load is saved, and work efficiency is improved.

[0040] The above description is only a summary of the technical scheme of the application, in order to more clearly understand the technical means of the application, the application can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0041] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading and understanding the following detailed description of the preferred embodiments. The following detailed description is included to provide a complete and enabling disclosure of the preferred embodiments. The detailed description includes specific details for the purpose of providing a thorough understanding of the preferred embodiments. However, it will be apparent to those of ordinary skill in the art that the preferred embodiments can be practiced without these specific details.

[0042] Figure 1 A flow diagram of a method for controlling pouring is shown according to an embodiment of the present application;

[0043] Figure 2 A flow diagram of another method for controlling pouring is shown according to an embodiment of the present application;

[0044] Figure 3 A block diagram of a device for controlling pouring is shown according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] Various aspects and features of the present application are described in the specification and are demonstrated in the accompanying figures.

[0046] It is to be understood that various modifications can be made to the embodiments described herein. Thus, the description is to be considered as merely illustrative of the principles of the application. Other modifications, evident to those of ordinary skill in the art, are within the scope and spirit of the application.

[0047] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the general description of the application given above, and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0048] These and other characteristics, features and advantages of the present application will become apparent to those of ordinary skill in the art upon review of the following detailed description in conjunction with the accompanying drawings.

[0049] It should also be understood that, although the terms "first" and "second" are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element being described could be termed a second element, and, similarly, a second element can be termed a first element, without changing the meaning of the description.

[0050] The above and other aspects, features, and advantages of the present application will become more apparent to those of ordinary skill in the art by making reference to the following detailed description in conjunction with the accompanying drawings.

[0051] Specific embodiments of the application are described hereinafter with reference to the drawings; however, it will be understood that the application is not limited to the specific embodiments described and that as such, many modifications, other specific embodiments and equivalents can be made. Well-known and / or repetitive functions and structures are not described in detail in order to avoid obscuring the application. Therefore, specific structural and functional details disclosed herein are not to be interpreted in a limiting manner, but merely for the purpose of teaching one skilled in the art to make and use the application.

[0052] The specification can use phrases such as "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which can refer to one or more of the same or different embodiments of the application.

[0053] Embodiments of the application provide a pouring control method, as shown in Figure 1 comprises:

[0054] Step S101: receiving an initial pouring relationship curve sent by a display interface, the initial pouring relationship curve being a relationship curve containing initial crucible angle setting values and initial pouring time setting values;

[0055] In the specific implementation process of the step, the initial pouring relationship curve is received by the display interface near the operation table and sent through the RS485 communication protocol; specifically, the display interface can be a touch screen. The traditional pouring control method is to manually input the initial pouring control relationship curve into the tilting controller. The application adds a touch screen near the operation table. The display interface of the touch screen sends the initial pouring relationship curve to the tilting controller through the RS485 communication protocol. The initial pouring relationship curve is generated in response to the drawing operation of the user on the display interface, or the initial pouring relationship curve is generated in response to reading the preset format file stored in the display interface. Specifically, the display interface can be used to manually draw the initial pouring relationship curve, and then the initial pouring relationship curve set by the display interface is imported into the tilting controller; or the mapping relationship between the initial crucible angle setting value and the initial pouring time setting value of the initial pouring relationship curve is set on the computer device by using a first predetermined format file, and then the display interface is stored in the preset storage device. The first predetermined format file can be an Excel table file. Compared with the manual input of the pouring curve on the tilting controller instrument in the prior art, the setting of the pouring curve on the computer device is simple and efficient. After setting the one-to-one correspondence between the initial pouring relationship curve and the corresponding crucible angle setting value and pouring time setting value on the Excel table, the preset storage device is converted into a predetermined format file and imported into the preset storage area of the display interface. The preset storage device can be a U disk, and the preset format file of the display interface can be a comma-separated value (CSV) format file. The CSV format file is imported into the preset storage area of the display interface, and the preset storage area can be the extended formula function area of the display interface. Then, the initial pouring relationship curve set by the display interface is written into the tilting controller by using the extended formula function of the display interface. The application manually draws the initial pouring relationship curve on the display interface or imports it into the display interface through the U disk, and then writes it into the tilting controller through the extended formula of the display interface. This is more simple and efficient than directly drawing the initial pouring relationship curve on the tilting controller instrument.

[0056] Step S102: When the casting sheet design thickness changes, the target pouring relationship curve corresponding to the production process of the to-be-processed casting sheet is obtained based on the initial pouring relationship curve and the to-be-processed casting sheet thickness.

[0057] In the specific implementation process, based on the thickness to be processed, the total production time of the production of the cast piece to be processed is determined; based on the total production time and the initial total production time corresponding to the initial pouring relationship curve, the change coefficient of the unit angle running time is calculated and obtained; specifically, the ratio of the initial total production time to the total production time is calculated to obtain the change coefficient. Based on the change coefficient, the target pouring time setting value corresponding to each target pouring angle setting value in the target pouring relationship curve to be generated is calculated and obtained; based on each target pouring angle setting value and each target pouring time setting value, the target pouring relationship curve is generated. The target pouring relationship curve refers to the relationship curve of each target pouring angle setting value and each target pouring time setting value. In order to make the molten steel in the crucible flow out at a constant flow, that is, the pouring speed is the same within the preset pouring time. The inclination angle pouring capacity relationship is y=f(ω), wherein ω is the target pouring angle setting value, y is the pouring capacity, the target pouring time setting value and the pouring capacity relationship is y=f(t), wherein t is the target pouring time setting value, y is the pouring capacity, when the target pouring angle setting value is the maximum inclination angle, all the molten steel is poured out, and the pouring time at this time is the total production time. The specific implementation process is calculated by the PLC control system of the cast piece production process. In actual application, the inclination controller and the PLC communicate through RS485, the register addresses of the inclination controller in the crucible angle setting value and the pouring time setting value are mapped to the PLC for setting and operation, when the cast piece design thickness changes, through the change coefficient obtained by calculation, the PLC automatically calculates the new pouring time value of the unit crucible pouring angle value and reimports it into the inclination controller, avoiding tedious manual operation and improving efficiency. The traditional method of changing the thickness of the cast product by changing the pouring curve needs manual calculation of the time of the unit angle inclination controller running, and then manually inputting the time variable of each step into the inclination controller, which is very time-consuming and prone to errors.

[0058] Step S103: in response to the received pouring start signal, start timing and generate an inclination control signal according to the target pouring relationship curve;

[0059] In the specific implementation process, the target pouring relationship curve of the function relationship between each target pouring angle setting value and each target pouring time setting value received by the inclination controller outputs a 0-5V inclination control signal to drive the hydraulic proportional valve amplifier control system to control the size of the hydraulic oil to drive the crucible to automatically tilt forward. The inclination control signal is a 0-5V analog signal. The inclination control signal is used to control the inclination angle of the inclination controller to make the liquid in the crucible flow out at a constant flow rate. According to the target pouring relationship curve, the inclination control signal is continuously sent according to the timing time to make the crucible pour the molten steel into the tundish at a constant flow rate within the preset pouring time.

[0060] Step S104: controlling the crucible to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve based on the tilting control signal.

[0061] In the specific implementation, the step is performed by driving a hydraulic proportional valve amplifier based on the tilting control signal to control the crucible to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve; obtaining a real-time rotation signal of the crucible, which is collected by a rotary encoder; calculating a real-time rotation angle value of the crucible based on the real-time rotation signal; and correcting the tilting control signal based on the real-time rotation angle value and the target pouring relationship curve, so that the real-time rotation angle value is consistent with the target crucible angle setting value of the target pouring relationship curve.

[0062] The application obtains an initial pouring relationship curve, which is a display interface near a pouring operation platform. The initial pouring relationship curve is a relationship curve containing each initial crucible angle setting value and each initial pouring time setting value. When the thickness of a cast slab changes, a target pouring relationship curve corresponding to the production process of a to-be-processed cast slab is obtained based on the initial pouring relationship curve and the thickness of the to-be-processed cast slab. In response to a received pouring start signal, a tilting control signal is generated according to the target pouring relationship curve. The crucible is controlled to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve based on the tilting control signal. The initial pouring relationship curve is received from the display interface. The initial pouring relationship curve is manually set on the display interface or imported to the display interface through a storage device after being edited on a pc or the like, and then written to a tilting controller through a formula of the display interface. The operation is convenient. When the thickness of the cast slab changes, each target pouring angle setting value and each target pouring time setting value corresponding to the to-be-generated target pouring relationship curve are directly calculated by the PLC, and then the target pouring relationship curve is obtained. Manual adjustment of parameter values on the tilting controller instrument is not required, thereby saving work and improving work efficiency.

[0063] In another embodiment of the application, another pouring control method is provided, as shown in Figure 2 The method comprises the following steps:

[0064] Step S201: receiving the initial pouring relationship curve sent by the display interface of the operation platform through the RS485 communication protocol;

[0065] In the specific implementation process of the step, the initial pouring relationship curve is generated in response to a user's drawing operation on the display interface, or the initial pouring relationship curve is generated in response to reading a preset storage device storing a preset format file of the display interface. Specifically, the display interface can be a touch screen. A conventional pouring control method is to manually input an initial pouring control relationship curve into a tilting controller. The application adds a touch screen near the operation table. The display interface of the touch screen sends the initial pouring relationship curve to the tilting controller through an RS485 communication protocol. The display interface can be used to manually draw the initial pouring relationship curve, and then the initial pouring relationship curve set is imported into the tilting controller using the expansion formula of the display interface. The client can be a computer device, and the first predetermined format file can be an Excel table file. Setting the pouring curve on the computer device is simpler and more efficient than manually inputting the pouring curve on the tilting controller instrument in the prior art. After setting the one-to-one correspondence between the initial pouring relationship curve and the corresponding crucible angle setting value and the pouring time setting value on the Excel table, the preset storage device is converted into a predetermined format file and imported into the preset storage area of the display interface. The preset storage device can be a U disk, and the predetermined format file can be a comma-separated value (CSV) format file. The CSV format file is imported into the preset storage area of the display interface, and the preset storage area can be an expansion formula function area of the display interface. Then, the initial pouring relationship curve set is written into the tilting controller using the expansion formula function of the display interface. The application manually draws the initial pouring relationship curve on the display interface or imports it into the display interface through a U disk, and then writes it into the tilting controller through the expansion formula of the display interface.

[0066] The initial pouring relationship curve can also be obtained according to manual pouring of the crucible by an experienced operator. Specifically, each sampling point of the forward inclination of the manually inclined crucible is collected in real time based on a preset angle interval, and each sampling point includes a historical crucible pouring angle setting value and a historical pouring time setting value corresponding to the historical crucible pouring angle setting value; a manual pouring curve corresponding to the manual inclination process is generated based on each historical crucible pouring angle setting value and each historical pouring time setting value; and the manual pouring curve is taken as the initial pouring relationship curve to control the crucible to perform the constant-flow pouring operation according to each historical crucible pouring angle setting value and each historical pouring time setting value in the manual pouring relationship curve. When the smelting worker manually inclines the molten steel liquid to perform the pouring operation, the crucible is always forward inclined, and the pouring angle value is always increasing. The PLC internally collects the time used for each degree of inclination of the crucible at a preset angle interval, which can be selected as the time change of one degree of rotation of the crucible, and records the time, and plans the corresponding inclination degree of the crucible. When the worker manually inclines the molten steel liquid, the manual ideal pouring curve is recorded by the PLC, and the ideal pouring curve is written into the inclination controller through RS485 communication, so as to form the initial pouring relationship curve, which can be directly called.

[0067] Step S202: When the design thickness of the cast sheet is unchanged, in response to the received pouring start signal, the timing is started, and the inclination control signal corresponding to the initial pouring relationship curve is generated according to the initial pouring relationship curve;

[0068] In the specific implementation process, during the production of the cast sheet, for example, the design thickness of the cast sheet produced by the initial pouring relationship curve is 0.28 mm, and the qualified rate is greater than or equal to 90%, and the same thickness of the cast sheet is to be produced and the qualified rate is required to be the same, the initial pouring relationship curve can be directly used for the production of the cast sheet.

[0069] Step S203: When the design thickness of the cast sheet is changed, the total production time of the cast sheet to be processed is determined based on the thickness to be processed.

[0070] In the specific implementation process, for example, the original constant-flow initial pouring relationship curve is 18 minutes in total, the thickness of the cast sheet product produced is 0.28 mm, and the proportion is more than 90%, and the design thickness of the cast sheet is required to be 0.29 mm, and the proportion is more than 90%, and the time of the original pouring curve needs to be shortened to 16 minutes. In the specific implementation process, the total pouring production time is shortened as the thickness of the cast sheet increases, and the total pouring production time is increased as the thickness of the cast sheet decreases. The different pouring total production times corresponding to the production of cast sheets of different thicknesses are obtained according to the experience data obtained from long-term pouring operation, and the data can be directly obtained when the pouring relationship curve is set.

[0071] Step S204: based on the total production time and the initial total production time corresponding to the initial pouring relationship curve, a change coefficient of unit angle running time is calculated;

[0072] In the specific implementation process of this step, the change coefficient is the ratio of the total production time to the initial total production time corresponding to the initial pouring relationship curve. For example, the original constant flow initial pouring relationship curve is 18 minutes in total, the design thickness of the cast sheet is required to be 0.29 mm, which accounts for more than 90%, and the original pouring curve time needs to be shortened to 16 minutes. Therefore, the change coefficient is the total production time / initial total production time=16 min / 18 min≈0.889.

[0073] Step S205: based on the change coefficient, target pouring time set values corresponding to each target pouring angle set value in the target pouring relationship curve to be generated are calculated;

[0074] In the specific implementation process of this step, the display interface reads the initial pouring relationship curve from the tilting controller, and then imports the initial pouring relationship curve into the PLC system through the extended formula. The original time register address type mapped to the PLC in the tilting controller is long integer data. All mapped time long integer register addresses are converted to floating point register addresses. After the floating point register addresses participate in the calculation, they are converted to long integer register addresses that can be recognized by the tilting controller. For example, the original initial pouring relationship curve needs to run for 18 seconds when the crucible runs from a pouring angle value of 49° to a pouring angle value of 50°. The time required to run now is 18s*0.899=15.9s≈16s. That is, after the change coefficient 0.889 is interacted to the PLC on the display interface, the tilting controller will automatically calculate the pouring time value within the unit angle required, that is, the target pouring time set value corresponding to each target pouring angle set value is obtained.

[0075] Step S206: based on each target pouring angle set value and each target pouring time set value, the target pouring relationship curve is generated;

[0076] In the specific implementation process of this step, based on each target pouring angle set value and each target pouring time set value, the target pouring time set value generated on the PLC is floating point data. After the pouring time value corresponding to each pouring angle value is rounded, the target pouring relationship curve is generated. The curve is exported from the PLC to the display interface, and then the target pouring relationship curve is sent to the tilting controller by the display interface using the RS485 communication protocol, which lays a foundation for subsequent production of cast sheets with changed design requirements.

[0077] Step S207: In response to the received pouring start signal, start timing and generate a tilting control signal according to the target pouring relationship curve;

[0078] In the implementation of this step, the target pouring relationship curve of the function relationship between the target tilting angle setting value and the target tilting time setting value received by the tilting controller outputs a 0-5V tilting control signal to drive the hydraulic proportional valve amplifier control system to control the amount of hydraulic oil, thereby driving the crucible to automatically tilt forward. The tilting control signal is a 0-5V analog signal. The tilting control signal is used to control the tilting angle of the crucible by the tilting control instrument, so that the liquid in the crucible flows out in a constant flow manner. The height of the side baffle of the flow guide groove limits the tilting angle of the crucible. On the basis of ensuring that the molten steel flows out smoothly, it is also necessary to ensure that the molten steel flows along the flow guide direction of the flow guide groove and cannot overflow outside the flow guide groove. That is, when the crucible is tilted, the page height of the molten steel in the crucible needs to be less than the height of the side baffle of the flow guide groove. According to the target pouring relationship curve, the tilting control signal is continuously sent according to the timing time, so that the crucible pours the molten steel into the tundish in a constant flow manner within the preset pouring time.

[0079] Step S208: Control the crucible to perform constant-flow tilting pouring operation according to each target crucible angle setting value and each target tilting time setting value in the target pouring relationship curve based on the tilting control signal;

[0080] In the implementation of this step, the target pouring relationship curve of the function relationship between the target tilting angle setting value and the target tilting time setting value received by the tilting controller outputs a 0-5V tilting control signal to drive the hydraulic proportional valve amplifier control system to control the amount of hydraulic oil, thereby driving the crucible to automatically tilt forward. The tilting control signal is a 0-5V analog signal. The tilting control signal is used to control the tilting angle of the crucible by the tilting control instrument, so that the liquid in the crucible flows out in a constant flow manner. The height of the side baffle of the flow guide groove limits the tilting angle of the crucible. On the basis of ensuring that the molten steel flows out smoothly, it is also necessary to ensure that the molten steel flows along the flow guide direction of the flow guide groove and cannot overflow outside the flow guide groove. That is, when the crucible is tilted, the page height of the molten steel in the crucible needs to be less than the height of the side baffle of the flow guide groove. According to the target pouring relationship curve, the tilting control signal is continuously sent according to the timing time, so that the crucible pours the molten steel into the tundish in a constant flow manner within the preset pouring time.

[0081] Step S209: Real-time display of each parameter data of the pouring process on the operation platform display interface, and alarm and control the pouring process to stop running when each parameter data is abnormal.

[0082] In the specific implementation process of the present step, the remaining pouring time, the real-time pouring angle value, the real-time crucible angle setting value, the voltage output percentage, the pouring curve code and other parameter data are displayed on the display interface in real time. The operator can determine the progress of the current pouring process according to the parameter data displayed on the display interface. When each parameter is abnormal, the abnormality is alarmed and the pouring process is controlled to stop running. Compared with the traditional display on the pouring controller, it is more intuitive and convenient. The pouring controller is generally installed far away from the operator's operating position. The traditional method cannot allow the operator to intuitively see the progress of the current pouring process. When the on-site operator needs to know the current production progress, he needs to ask for help from others. However, the present application displays the parameter data of the production process on the display interface near the operating site, so that the operator can easily understand the production process in real time and improve the work efficiency.

[0083] The present application receives the initial pouring relationship curve sent by the operating platform display interface by adopting the RS485 communication protocol. Manual setting on the tilting controller instrument is not required, and the operation is convenient and the work efficiency is improved. When the design thickness of the casting sheet is unchanged, in response to the received pouring start signal, the timing is started and the tilting control signal corresponding to the initial pouring relationship curve is generated according to the initial pouring relationship curve. When the design thickness of the casting sheet changes, the total production time of the production casting sheet to be processed is determined based on the thickness to be processed. Based on the total production time and the initial total production time corresponding to the initial pouring relationship curve, the change coefficient of the unit angle running time is calculated and obtained. Based on the change coefficient, the target pouring time setting value corresponding to each target pouring angle setting value in the target pouring relationship curve to be generated is calculated and obtained. The target pouring relationship curve is generated based on each target pouring angle setting value and each target pouring time setting value. The target pouring time setting value corresponding to each target pouring angle setting value of the target pouring relationship curve to be generated is automatically calculated by inputting the change coefficient into the PLC system, without manual setting on the tilting controller, which reduces errors and improves work efficiency. In response to the received pouring start signal, the timing is started and the tilting control signal is generated according to the target pouring relationship curve. Based on the tilting control signal, the crucible is controlled to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve. Each parameter data of the pouring process is displayed on the display interface near the operating platform in real time. When each parameter is abnormal, the abnormality is alarmed and the pouring process is controlled to stop running. It is convenient for the operator to view the production process data in real time and improve the work efficiency.

[0084] Another embodiment of the present application provides a pouring control device, as shown in Figure 3 , comprising:

[0085] An initial pouring relationship curve obtaining module 1 is configured to receive an initial pouring relationship curve sent by the display interface, the initial pouring relationship curve being a relationship curve containing initial crucible angle setting values and initial pouring time setting values;

[0086] A target pouring relationship curve obtaining module 2 is configured to, when the cast sheet design thickness changes, obtain a target pouring relationship curve corresponding to the production process of the cast sheet to be processed, which is calculated based on the initial pouring relationship curve and the thickness of the cast sheet to be processed.

[0087] A tilting control signal generating module 3 is configured to, in response to the received pouring start signal, start timing and generate a tilting control signal according to the target tilting relationship curve.

[0088] A pouring control module 4 is configured to control the crucible to perform constant-flow pouring operation according to the target pouring relationship curve, i.e., according to the target crucible angle setting values and the target pouring time setting values.

[0089] In the specific implementation, the initial pouring relationship curve obtaining module 1 is specifically configured to receive the initial pouring relationship curve sent by the operation platform display interface by using the RS485 communication protocol; the initial pouring relationship curve is generated in response to the drawing operation of the user on the display interface, or the initial pouring relationship curve is generated in response to reading the preset format file stored in the display interface.

[0090] In the specific implementation, the target pouring relationship curve obtaining module 2 is specifically configured to determine the total production time of the cast sheet to be processed based on the thickness to be processed; calculate a change coefficient of the unit angle running time based on the total production time and the initial total production time corresponding to the initial pouring relationship curve; calculate the target pouring time setting values corresponding to the target pouring angle setting values for generating the target pouring relationship curve based on the change coefficient; and generate the target pouring relationship curve based on the target pouring angle setting values and the target pouring time setting values.

[0091] In the specific implementation, the tilting control signal generating module 3 is specifically configured to, when the cast sheet design thickness is unchanged, start timing and generate a tilting control signal corresponding to the initial pouring relationship curve according to the initial pouring relationship curve in response to the received pouring start signal; and control the crucible to perform constant-flow pouring operation according to the initial pouring relationship curve, i.e., according to the initial crucible angle setting values and the initial pouring time setting values in the initial pouring relationship curve.

[0092] In the implementation process, the pouring control module 4 is specifically used for: driving a hydraulic proportional valve amplifier to control the crucible to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve based on the tilting control signal; obtaining a real-time rotation signal of the crucible, the real-time rotation signal being collected by a rotary encoder; calculating a real-time pouring angle value of the crucible based on the real-time rotation signal; and correcting the tilting control signal based on the real-time pouring angle value and the target pouring relationship curve, so that the real-time pouring angle value is consistent with the target crucible angle setting value of the target pouring relationship curve.

[0093] In the implementation process, the pouring control device further comprises an initial pouring relationship curve generation module, which is specifically used for: collecting each sampling point of manual tilting of the crucible in real time based on a preset angle interval, each sampling point comprising each historical crucible pouring angle value and each historical pouring time value corresponding to each historical crucible pouring angle value; generating a manual pouring curve corresponding to the manual tilting process based on the mapping relationship of each historical crucible pouring angle value and each historical time value; and controlling the crucible to perform constant-flow pouring operation according to each historical crucible pouring angle value and each historical pouring time value in the manual pouring relationship curve based on the manual pouring curve as the initial pouring relationship curve.

[0094] In the implementation process, the pouring control device further comprises a display module, which is specifically used for: displaying each parameter data of the pouring process on an operation table display interface in real time, alarming and controlling the pouring process to stop running when each parameter data is abnormal, and the parameter data comprising one or more of pouring remaining time, real-time rotation angle value, real-time crucible angle setting value, voltage output percentage and pouring curve code.

[0095] The application obtains an initial pouring relationship curve which is a display interface near a pouring operation platform, receives the initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is a relationship curve containing initial crucible angle setting values and initial pouring time setting values, obtains a target pouring relationship curve corresponding to a production process of a to-be-processed casting sheet based on the initial pouring relationship curve and the thickness of the to-be-processed casting sheet when the design thickness of the casting sheet changes, starts timing and generates a tilting control signal according to the target pouring relationship curve in response to a received pouring start signal, and controls the crucible to perform constant-flow pouring operation according to the target crucible angle setting values and the target pouring time setting values in the target pouring relationship curve based on the tilting control signal. The application receives the initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is manually set on the display interface or imported to the display interface through a storage device after being edited on a pc or the like, and then the formula of the display interface is written into the tilting controller, which is convenient to operate. When the thickness of the casting sheet changes, the target pouring relationship curve is obtained by directly calculating the target pouring angle setting values and the target pouring time setting values corresponding to the target pouring relationship curve by the PLC, and then the target pouring relationship curve is obtained. Manual adjustment of the parameter values on the tilting controller instrument is not needed, the workload is saved, and the work efficiency is improved.

[0096] Another embodiment of the application provides a storage medium storing a computer program, the computer program being executed by a processor to implement the following method steps:

[0097] Step one, receiving an initial pouring relationship curve sent by a display interface, the initial pouring relationship curve being a relationship curve containing initial crucible angle setting values and initial pouring time setting values;

[0098] Step two, obtaining a target pouring relationship curve corresponding to a production process of a to-be-processed casting sheet based on the initial pouring relationship curve and the thickness of the to-be-processed casting sheet when the design thickness of the casting sheet changes;

[0099] Step three, starting timing and generating a tilting control signal according to the target pouring relationship curve in response to a received pouring start signal;

[0100] Step four, controlling the crucible to perform constant-flow pouring operation according to the target crucible angle setting values and the target pouring time setting values in the target pouring relationship curve based on the tilting control signal.

[0101] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, storage, database or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0102] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above-mentioned division of functional units and modules is exemplified, and in actual application, the above-mentioned functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.

[0103] The specific implementation process of the above method steps can refer to the embodiments of any of the above pouring control methods, which will not be repeated here.

[0104] The application obtains an initial pouring relationship curve, which is a display interface near a pouring operation platform, receives an initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is a relationship curve containing each initial crucible angle setting value and each initial pouring time setting value, obtains a target pouring relationship curve corresponding to a production process of a to-be-processed casting sheet based on the initial pouring relationship curve and the to-be-processed casting sheet thickness when the casting sheet design thickness changes, starts timing and generates a tilting control signal according to the target pouring relationship curve in response to a received pouring start signal, and controls the crucible to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve based on the tilting control signal. The application receives the initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is manually set on the display interface or imported to the display interface through a storage device after being edited on a pc or the like, and then written to a tilting controller by the display interface, which is convenient to operate, each target pouring angle setting value and each target pouring time setting value corresponding to a to-be-generated target pouring relationship curve are directly calculated by the PLC when the casting sheet thickness changes, and then the target pouring relationship curve is obtained, so that manual adjustment of parameter values on the tilting controller instrument is not needed, work load is saved, and work efficiency is improved.

[0105] Another embodiment of the application provides an electronic device, which can be a server, comprising a processor, a memory, a network interface and a database connected through a system bus. The processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device comprises a non-volatile and / or volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for running the operating system and the computer program in the non-volatile storage medium. The network interface of the electronic device is configured to communicate with an external client through a network connection. The electronic device program is executed by the processor to implement the functions or steps of the server side of the pouring control method.

[0106] In one embodiment, an electronic device, which can be a client, is provided. The electronic device includes a processor, a memory, a network interface, a display screen and an input device connected by a system bus. The processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for running the operating system and the computer program in the non-volatile storage medium. The network interface of the electronic device is configured to communicate with an external server through a network connection. The electronic device program, when executed by the processor, implements a function or step of a pouring control client side.

[0107] Another embodiment of the present application provides an electronic device, which includes at least a memory and a processor. The memory stores a computer program. The processor implements the following method steps when executing the computer program in the memory.

[0108] Step one, receiving an initial pouring relationship curve sent by a display interface, the initial pouring relationship curve being a relationship curve containing initial crucible angle setting values and initial pouring time setting values;

[0109] Step two, when the thickness of a cast sheet is changed, obtaining a target pouring relationship curve corresponding to a production process of a cast sheet to be processed based on the initial pouring relationship curve and the thickness of the cast sheet to be processed;

[0110] Step three, in response to a received pouring start signal, starting timing and generating a tilting control signal according to the target pouring relationship curve;

[0111] Step four, controlling a crucible to perform constant-flow pouring operation according to target crucible angle setting values and target pouring time setting values in the target pouring relationship curve based on the tilting control signal.

[0112] The specific implementation process of the above method steps can be referred to the embodiments of any pouring control method described above, which will not be repeated here.

[0113] The application obtains an initial pouring relationship curve, which is a display interface near a pouring operation platform, receives an initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is a relationship curve containing each initial crucible angle setting value and each initial pouring time setting value; when the casting sheet design thickness changes, a target pouring relationship curve corresponding to the production process of a to-be-processed casting sheet is obtained based on the initial pouring relationship curve and the to-be-processed casting sheet thickness; in response to a received pouring start signal, timing is started and a tilting control signal is generated according to the target pouring relationship curve; the crucible is controlled to perform constant-flow pouring operation according to each target crucible angle setting value and each target pouring time setting value in the target pouring relationship curve based on the tilting control signal. The application receives the initial pouring relationship curve sent by the display interface, the initial pouring relationship curve is manually set on the display interface or imported to the display interface through a storage device after being edited on a pc or the like, and then the formula of the display interface is written into the tilting controller, which is convenient to operate. When the casting sheet thickness changes, each target pouring angle setting value and each target pouring time setting value corresponding to the to-be-generated target pouring relationship curve are directly calculated by the PLC to obtain the target pouring relationship curve, and manual adjustment of the parameter value on the tilting controller instrument is not required, thereby saving the work amount and improving the work efficiency.

[0114] The above examples are only exemplary embodiments of the application and are not used to limit the application, and the protection scope of the application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the application within the spirit and protection scope of the application, and such modifications or equivalent replacements are also regarded as falling within the protection scope of the application.

Claims

1. A method for controlling pouring, characterized in that, include: Receive the initial pouring relationship curve sent by the display interface. The initial pouring relationship curve is a relationship curve that includes the initial crucible angle setting value and the initial pouring time setting value. When the design thickness of the casting changes, a target casting relationship curve corresponding to the production process of the casting to be processed is obtained based on the initial casting relationship curve and the thickness of the casting to be processed. In response to the received pouring start signal, timing begins and a tilting control signal is generated based on the target pouring relationship curve; Based on the tilting control signal, the crucible is controlled to perform constant flow tilting and pouring operations according to the target crucible angle setting value and the target tilting time setting value in the target pouring relationship curve; When the design thickness of the cast sheet changes, obtaining a target casting relationship curve corresponding to the production process of the cast sheet of the desired thickness, generated based on the initial casting relationship curve and the thickness to be processed, specifically includes: The total production time for producing the casting to be processed is determined based on the thickness to be processed. Based on the total production time and the initial total production time corresponding to the initial pouring relationship curve, the variation coefficient of the unit angle running time is calculated. Based on the aforementioned coefficient of variation, the target tilting time setting value corresponding to each target tilting angle setting value used to generate the target pouring relationship curve is calculated; The target pouring relationship curve is generated based on the target pouring angle setting value and the target pouring time setting value.

2. The method as described in claim 1, characterized in that, The receipt of the initial pouring relationship curve sent by the display interface specifically includes: The initial pouring relationship curve is sent by the control panel display interface using the RS485 communication protocol. The initial pouring relationship curve is generated in response to the user's drawing operation on the display interface; or, The system reads a preset format file stored in the display interface from a preset storage device and generates the initial casting relationship curve.

3. The method as described in claim 1, characterized in that, The method further includes: When the design thickness of the casting remains unchanged, in response to the received pouring start signal, timing begins and a tilting control signal corresponding to the initial pouring relationship curve is generated according to the initial pouring relationship curve. Based on the tilting control signal, the crucible is controlled to perform constant flow tilting and pouring operations according to the initial crucible angle setting value and the initial tilting time setting value in the initial pouring relationship curve.

4. The method as described in claim 1, characterized in that, The process of controlling the crucible based on the tilting control signal to perform a constant flow tilting and pouring operation according to the crucible angle settings and tilting time settings in the target pouring relationship curve specifically includes: Based on the tilting control signal, the hydraulic proportional valve amplifier controls the crucible to perform constant flow tilting and pouring operations according to the target crucible angle setting value and the target tilting time setting value in the target pouring relationship curve. The real-time rotation signal of the crucible is acquired by a rotary encoder. Based on the real-time rotation signal, the real-time tilting angle value of the crucible is calculated; Based on the real-time tilting angle value and the target pouring relationship curve, the tilting control signal is corrected so that the real-time tilting angle value is consistent with the target crucible angle setting value of the target pouring relationship curve.

5. The method as described in claim 1, characterized in that, The method further includes, prior to receiving the initial casting relationship curve sent by the display interface: Based on a preset angle interval, each sampling point of the manually tilted crucible is collected in real time. Each sampling point includes the historical crucible tilting angle value and the historical tilting time value corresponding to each historical crucible tilting angle value. Based on the mapping relationship between the historical crucible tilting angle values ​​and the historical time values, a manual pouring curve corresponding to the manual tilting process is generated. The manual pouring curve is used as the initial pouring relationship curve to control the crucible to perform constant flow pouring operation according to the historical crucible tilting angle value and the historical tilting time value in the manual pouring relationship curve.

6. The method as described in claim 4, characterized in that, The method further includes: The various parameter data of the pouring process are displayed on the control panel display interface in real time. When any of the parameter data is abnormal, an alarm is triggered and the pouring process is stopped. The parameter data includes one or more of the following: remaining pouring time, real-time rotation angle value, real-time crucible angle setting value, voltage output percentage, and pouring curve code.

7. A pouring control device, characterized in that, include: Initial pouring relationship curve acquisition module: used to receive the initial pouring relationship curve sent by the display interface, wherein the initial pouring relationship curve is a relationship curve including each initial crucible angle setting value and each initial pouring time setting value; The target pouring relationship curve acquisition module is used to obtain a target pouring relationship curve corresponding to the production process of the casting to be processed, calculated based on the initial pouring relationship curve and the thickness of the casting to be processed, when the design thickness of the casting changes. Specifically, it is used to: determine the total production time for producing the casting to be processed based on the thickness to be processed; calculate the variation coefficient of the unit angle running time based on the total production time and the initial total production time corresponding to the initial pouring relationship curve; calculate the target tilting time setting value corresponding to each target tilting angle setting value used to generate the target pouring relationship curve based on the variation coefficient; and generate the target pouring relationship curve based on each target tilting angle setting value and each target tilting time setting value. Tilting control signal generation module: used to control the timing to start in response to the received pouring start signal and generate a tilting control signal according to the target tilting relationship curve; The pouring control module is used to control the crucible to perform constant flow pouring operation according to the target crucible angle setting value and the target pouring time setting value in the target pouring relationship curve based on the tilting control signal.

8. A storage medium, characterized in that, The storage medium stores a computer program, which, when executed by a processor, implements the steps of the casting control method according to any one of claims 1-6.

9. An electronic device, characterized in that, It includes at least a memory and a processor, wherein the memory stores a computer program, and the processor, when executing the computer program in the memory, implements the steps of the casting control method according to any one of claims 1-6.

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