Compensation method, storage medium and electronic device

Abstract

The invention provides a compensation method, a storage medium and an electronic device. By means of the compensation method, the output torque value of the sizing roller driving motor and the rotating speed of the post-drying main driving motor are compensated, and after the output torque value of the sizing roller driving motor is compensated, the situation that the upper sizing roller and the lower sizing roller are closed in the sizing process of paper can be avoided; when a lower sizing beam and a lower sizing roller are closed and an upper sizing beam and an upper sizing roller are closed, the problem that paper is broken due to tension fluctuation caused by disturbance of output torque of a motor is solved; by compensating the rotating speed of the post-drying main driving motor, tension fluctuation generated after paper sizing can be overcome, the paper is evenly heated in the drying process, and paper fibers are prevented from being damaged or broken.

Description

Technical Field

[0001] The present disclosure relates to the technical field of papermaking, and in particular to a compensation determination method, a storage medium, and an electronic device. Background Art

[0002] In the process of making paper, the pulp produced in advance needs to flow evenly to the wire part of the paper machine, and then go through the procedures of pressing and drying to gradually separate the water in the pulp and interweave the fibers to form paper. During the pressing and pre-drying process, the pulp will be initially formed, and then glue needs to be coated on the front and back of the initially formed pulp, and then the preliminary paper after glue coating is transported to the post-dryer for drying to obtain paper.

[0003] In order to apply glue to the surface of paper, the glue roller and the glue beam need to be closed separately. During the closing process, load disturbance will be generated, causing the surface tension of the paper to change, and the paper is prone to break. At this time, it involves automatic calculation of the disturbance torque to compensate for the automatic adjustment of the tension and ensure the stability of the tension of the paper surface.

[0004] In the prior art, manual adjustment is generally required when adjusting the tension of paper. However, this adjustment method has relatively low accuracy, and manual adjustment reduces the efficiency of paper production and increases labor intensity. Summary of the invention

[0005] In order to overcome the above defects in the prior art, the present disclosure provides a compensation method, a storage medium and an electronic device to solve the problem in the prior art that manual adjustment of paper tension leads to low paper production efficiency, easy paper breakage and increased labor intensity.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a compensation method is provided, which is applied to a paper production device, wherein the paper production device comprises a glue machine and a post-drying machine arranged in sequence along the paper production direction, wherein the glue machine comprises: an upper glue roller and a lower glue roller for applying glue to the paper, the glue machine further comprises a glue roller driving motor for driving the upper glue roller and the lower glue roller to rotate, so that the upper glue roller and the lower glue roller respectively apply glue to two paper surfaces of the paper during the rotation process, and the glue machine further comprises an upper glue beam for providing glue to the upper glue roller and a lower glue beam for providing glue to the lower glue roller;

[0007] The compensation method includes a method for determining the compensation torque, and the method for determining the compensation torque includes:

[0008] Obtain the closed glue roller line pressure between the upper glue roller and the lower glue roller, the closed glue beam line pressure between the upper glue beam and the upper glue roller, and between the lower glue beam and the lower glue roller;

[0009] Get the line speed of the sizing machine;

[0010] The compensating torque required for closing the glue roller and the glue beam is calculated according to the closed glue roller line pressure, the closed glue beam line pressure and the line speed;

[0011] The output torque value of the glue roller driving motor is adjusted according to the compensation torque.

[0012] Further, the step of adjusting the output torque value of the glue roller driving motor according to the compensation torque includes:

[0013] The magnitude of the power supply current of the glue roller driving motor is adjusted according to the compensation torque to adjust the output torque value of the glue roller driving motor.

[0014] Further, the step of calculating the compensation torque of the glue roller driving motor according to the closed glue roller linear pressure, the closed glue beam linear pressure and the linear speed includes:

[0015] Inputting the closed glue roller line pressure and the closed glue beam line pressure into a first calculation formula to obtain a first value;

[0016] Inputting the running linear speed into a second calculation formula to obtain a second value;

[0017] Multiplying the first value by the second value to obtain a compensation torque;

[0018] Wherein, the first calculation formula is: F1=A1*P1+A2*P2+B1;

[0019] The second calculation formula is: F2 = A3 * V1 + B2;

[0020] Where: F1 represents the first value;

[0021] F2 represents the second value;

[0022] P1 represents the closed glue beam line pressure;

[0023] P2 represents the closed glue roller line pressure;

[0024] V1 represents the linear speed of the sizing machine;

[0025] A1, A2, B1, A3 and B2 represent correction coefficients.

[0026] Furthermore, the method further comprises:

[0027] When the upper glue roller and the lower glue roller are closed, the output torque value of the glue roller driving motor is adjusted according to the compensation torque; or,

[0028] When the upper glue beam and the upper glue roller are closed, the output torque value of the glue roller driving motor of the upper glue roller is adjusted according to the compensation torque; or,

[0029] When the lower glue beam and the lower glue roller are closed, a torque disturbance is generated on the drive motor of the lower glue roller, and the output torque value of the glue roller drive motor of the lower glue roller is adjusted according to the compensation torque.

[0030] Further, the post-drying machine includes at least one rotatable drying cylinder and a post-drying main driving motor for driving the drying cylinder to rotate; the compensation method also includes a method for determining a compensation speed, and the method for determining the compensation speed includes:

[0031] Get the line speed of the sizing machine;

[0032] Get the weight of sizing on the paper;

[0033] The compensation speed is calculated based on the weight of glue applied and the running line speed;

[0034] The compensation speed is input into the main driving motor of the post-drying machine to adjust the rotation speed of the post-drying main driving motor according to the compensation speed.

[0035] Further, the step of calculating the compensation speed according to the weight of the glue applied and the running line speed includes:

[0036] Inputting the weight of the glue application into a third calculation formula to obtain a third value;

[0037] Inputting the line speed of the sizing machine into the fourth calculation formula to obtain a fourth value;

[0038] The third value is multiplied by the fourth value to obtain the compensation speed;

[0039] Among them, the third calculation formula is F3=A3*W1+B3;

[0040] The fourth calculation formula is F4=A4*V1+B4;

[0041] Where: F3 represents the third value;

[0042] F4 represents the fourth value;

[0043] W1 represents the weight of glue applied to the paper after the sizing machine applies glue to the paper;

[0044] V1 represents the linear speed of the sizing machine;

[0045] A3, B3, A4 and B4 represent correction coefficients.

[0046] Furthermore, the method further comprises:

[0047] When the upper glue roller and the lower glue roller are closed, the upper glue beam and the lower glue beam apply glue to the upper glue roller and the lower glue roller respectively, and the speed of the rear drying main driving motor is adjusted according to the compensation speed; or,

[0048] When the upper glue beam is closed with the upper glue roller, the lower glue roller is closed with the lower glue beam, and the upper glue roller and the lower glue roller are closed to glue the paper, the speed of the rear drying main drive motor is adjusted according to the compensation speed.

[0049] Furthermore, the step of adjusting the rotation speed of the post-drying main driving motor according to the compensation speed also includes:

[0050] Obtaining the speed value of the initial speed chain of the post-drying main driving motor, the setting value of the post-drying main driving motor for tightening or relaxing the paper, the setting value of the speed difference between different divisions, and the speed value adjusted by the tension PID; summing the speed value of the initial speed chain of the post-drying main driving motor, the setting value of the post-drying main driving motor for tightening or relaxing the paper, the setting value of the speed difference between different divisions, and the speed value adjusted by the tension PID to obtain a first setting value;

[0051] The first set value and the compensation speed are added together to obtain a total speed setting;

[0052] Inputting the total speed setting into the post-drying main driving motor to adjust the speed of the post-drying main driving motor according to the total speed setting;

[0053] The setting value of the speed difference between different divisions is the speed difference between the driving motor of the glue roller and the main driving motor of the post-drying.

[0054] According to another aspect of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above compensation method when running.

[0055] According to another aspect of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the compensation method through the computer program.

[0056] According to another aspect of the present application, a computer program product is provided, including a computer program, and the above compensation method is performed when the computer program is executed by a processor.

[0057] By applying the technical solution of the present application and utilizing a compensation method, the output torque value of the glue roller drive motor and the rotational speed of the post-drying main drive motor are compensated respectively. After compensating the output torque value of the glue roller drive motor, the problem of paper breakage caused by the tension fluctuation caused by the disturbance of the motor output torque when the upper glue roller and the lower glue roller are closed, the lower glue beam and the lower glue roller are closed, and the upper glue beam and the upper glue roller are closed during the gluing process can be avoided. By compensating the rotational speed of the post-drying main drive motor, the tension fluctuation generated after the paper is gluing can be overcome, so that the paper is heated evenly during the drying process, and the paper fibers can be prevented from being damaged or broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the accompanying drawings:

[0059] Figure 1 is a hardware structure block diagram of a computer terminal showing a compensation method according to an embodiment of the present disclosure;

[0060] Figure 2 is a flow chart showing a sizer compensation method and a post-drying compensation method according to an embodiment of the present disclosure;

[0061] Figure 3 A partial structural schematic diagram of a post-dryer and a sizing machine in a paper production device provided by an embodiment of the present disclosure is shown;

[0062] Figure 4 A control logic diagram of compensation of a sizer control system in a paper production device provided by an embodiment of the present disclosure is shown;

[0063] Figure 5 A control logic diagram showing compensation of a post-drying control system in a paper production device provided by an embodiment of the present disclosure is shown; and

[0064] Figure 6 This is a tension control logic diagram in the prior art.

[0065] Reference numerals list

[0066] 1Paper

[0067] 2 Upper sizing roller

[0068] 3 lower sizing roller

[0069] 4 Upper Glue Beam

[0070] 5 Lower Glue Beam

[0071] 6 Drying cylinder

[0072] 108 Input and Output Devices

[0073] 106 Transmission Equipment

[0074] 102 Processor

[0075] 104 Memory DETAILED DESCRIPTION

[0076] The technical solutions in the embodiments of the present disclosure will be described in detail below in conjunction with the drawings in the embodiments of the present disclosure. It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other without conflict.

[0077] In the process of producing paper, the pulp produced in advance needs to flow evenly to the wire part of the paper machine, and then go through the procedures of pressing and drying to gradually separate the water in the pulp and interweave the fibers to form paper. During the pressing and pre-drying process, the pulp will be initially formed, and then glue needs to be coated on the front and back of the initially formed pulp, and then the preliminary paper after glue coating is transported to the post-dryer for drying to obtain paper.

[0078] In order to apply glue to the surface of paper, the glue roller and the glue beam need to be closed separately. During the closing process, load disturbance will be generated, causing the surface tension of the paper to change, and the paper is prone to break. At this time, it involves automatic calculation of the disturbance torque to compensate for the automatic adjustment of the tension and ensure the stability of the tension of the paper surface.

[0079] When the glue is coated on the initially formed paper, the fibers of the paper will become longer, causing the paper to break easily during the drying process. At this time, it involves automatic adjustment of the tension of the paper.

[0080] In the prior art, manual adjustment is generally required when adjusting the tension of paper. However, this adjustment method has relatively low accuracy, and manual adjustment reduces the efficiency of paper production and increases labor intensity.

[0081] Therefore, the purpose of this application is to provide a compensation method, storage medium and electronic device to address the above problems.

[0082] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal, a mobile terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 1 is a hardware structure block diagram of a computer terminal of a compensation method according to an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or N ( Figure 1Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing Unit, CPU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the above-mentioned computer terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0083] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the adjustment method of the monitoring network point in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or N magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0084] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0085] The present application provides a compensation method, which is applied to paper production equipment, such as Figure 3As shown, the paper production equipment includes a glue machine and a post-drying machine which are arranged in sequence along the paper production direction. The glue machine includes: an upper glue roller 2 and a lower glue roller 3 for applying glue to the paper 1. The glue machine also includes a glue roller driving motor for driving the upper glue roller 2 and the lower glue roller 3 to rotate, so that the upper glue roller 2 and the lower glue roller 3 can apply glue to the two paper surfaces of the paper 1 respectively during the rotation process. The glue machine also includes an upper glue beam 4 for providing glue to the upper glue roller 2 and a lower glue beam 5 for providing glue to the lower glue roller 3. The after-dryer is located at the rear side of the sizing machine, and the upper sizing roller 2 and the lower sizing roller 3, the upper sizing beam 4 and the upper sizing roller 2, and the lower sizing beam 5 and the lower sizing roller 3 can be closed or opened. If no paper passes through the sizing machine, the upper sizing roller 2 and the lower sizing roller 3, the upper sizing beam 4 and the upper sizing roller 2, and the lower sizing beam 5 and the lower sizing roller 3 will not contact each other. Only when the paper passes through the sizing machine with its full width, the above components begin to close. The after-dryer is used to dry the paper in the sizing machine.

[0086] During the gluing process, the paper 1 passes between the upper glue roller 2 and the lower glue roller 3. As the upper glue roller 2 and the lower glue roller 3 rotate continuously, the glue material will be evenly coated on the paper 1. However, during the closing process of the upper glue beam 4 and the upper glue roller 2, the closing process of the lower glue beam 5 and the lower glue roller 3, and the closing process of the upper glue roller 2 and the lower glue roller 3, load disturbances will occur, causing changes in the surface tension of the paper, making the paper easily torn.

[0087] Basically, the system usually includes speed loop, torque loop and tension loop, using classic solutions. Figure 5 As shown, when controlling tension, speed is the core parameter of the master-slave drive system, and there is no speed pre-control or torque pre-control compensation to keep the paper tension stable, regardless of whether the glue roller is close to the glue beam.

[0088] Therefore, in the first embodiment provided in the present application, the compensation method includes a method for determining the compensation torque.

[0089] Specifically, the method for determining the compensation torque includes:

[0090] S110: Obtaining the closed glue roller line pressure between the upper glue roller 2 and the lower glue roller 3, and the closed glue beam line pressure between the upper glue beam 4 and the upper glue roller 2, and between the lower glue beam 5 and the lower glue roller 3;

[0091] S120: obtaining the linear speed of the sizing machine;

[0092] S130: Calculate the compensation torque required for closing the glue roller and the glue beam according to the closed glue roller line pressure, the closed glue beam line pressure and the line speed;

[0093] S140: Adjusting the output torque value of the glue roller driving motor according to the compensation torque.

[0094] By compensating the output torque value of the glue roller drive motor, the output force of the upper glue roller 2 and the lower glue roller 3 is ensured to be stable, so that the tension of the paper is stabilized during the process of gluing the paper. The torque values ​​of the two glue drive motors can be adjusted by adjusting the power supply current of the two glue drive motors according to the compensation torque. This part is realized based on the principle of electromagnetic torque, and the specific principle is not elaborated here.

[0095] Further, the step of calculating the compensation torque of the glue roller driving motor according to the closed glue roller linear pressure, the closed glue beam linear pressure and the linear speed includes: inputting the closed glue roller linear pressure and the closed glue beam linear pressure into a first calculation formula to obtain a first value;

[0096] Inputting the running linear speed into a second calculation formula to obtain a second value;

[0097] Multiplying the first value by the second value to obtain a compensation torque;

[0098] Wherein, the first calculation formula is: F1=A1*P1+A2*P2+B1;

[0099] The second calculation formula is: F2 = A3 * V1 + B2;

[0100] Where: F1 represents the first value;

[0101] F2 represents the second value;

[0102] P1 represents the closed glue beam line pressure;

[0103] P2 represents the closed glue roller line pressure;

[0104] V1 represents the linear speed of the sizing machine;

[0105] A1, A2, B1, A3 and B2 represent correction coefficients.

[0106] Among them, A1, A2, B1, A3 and B2 can be obtained through calculation or field testing.

[0107] Further, the method further comprises: when the upper glue roller 2 and the lower glue roller 3 are closed, adjusting the output torque value of the glue roller driving motor according to the compensation torque; or,

[0108] When the upper glue beam 4 and the upper glue roller 2 are closed, a torque disturbance is generated on the drive motor of the upper glue roller 2, and the output torque value of the drive motor of the glue roller is adjusted according to the compensation torque; or,

[0109] When the lower glue beam 5 and the lower glue roller 3 are closed, a torque disturbance is generated on the drive motor of the lower glue roller 3, and the output torque value of the glue roller drive motor is adjusted according to the compensation torque.

[0110] Among them, when the torque disturbance of the motor comes from the closing between the upper glue beam 4 and the upper glue roller 2, the torque of the glue roller driving motor that drives the upper glue roller 2 to rotate is compensated; when the torque disturbance of the motor comes from the closing between the lower glue beam 5 and the lower glue roller 3, the torque of the glue roller driving motor that drives the lower glue roller 3 to rotate is compensated, and when the torque disturbance of the motor comes from the closing of the upper glue roller 2 and the lower glue roller 3, the torques of the glue roller driving motors that drive the upper glue roller 2 to rotate and the lower glue roller 3 to rotate are compensated respectively. In the present application, there are two glue roller driving motors, which drive the upper glue roller 2 to rotate and the lower glue roller 3 to rotate respectively. The step of adjusting the output torque value of the glue roller driving motor according to the compensation torque includes: adjusting the magnitude of the power supply current of the glue roller driving motor according to the compensation torque to adjust the output torque value of the glue roller driving motor.

[0111] When the glue starts to be applied to the paper surface, the paper fiber will be stretched and lengthened because the paper becomes wet, and the paper will also become longer. The time point for the compensation speed to be put into use is: in one case, when the glue roller is closed first, the upper and lower glue beams start to close and apply glue, which is the time for the post-drying speed compensation to be put into use. In the second case, the upper or lower beam of the glue machine is closed first to apply glue, and then the glue roller is closed. The compensation point of the post-drying speed is when the glue is transferred to the paper when the glue roller is closed.

[0112] Therefore, in the second embodiment of the present application:

[0113] The post-dryer includes at least one rotatable drying cylinder 6 and a post-drying main driving motor for driving the drying cylinder 6 to rotate; the compensation method also includes a method for determining a compensation speed, and the method for determining the compensation speed includes:

[0114] S210: obtaining the linear speed of the sizing machine;

[0115] S220: Obtain the weight of glue applied on the paper 1;

[0116] S230: Calculating a compensation speed according to the weight of the glue applied and the running line speed;

[0117] S240: Inputting the compensation speed into the main driving motor of the post-drying machine to adjust the rotation speed of the post-drying main driving motor according to the compensation speed.

[0118] By compensating the rotation speed of the post-drying main drive motor, on the one hand, the tension fluctuation of the paper caused by the paper becoming wet and long after gluing can be overcome, and on the other hand, it can ensure that the paper 1 is heated evenly during the drying process to avoid local overheating that may cause damage or breakage of the paper 1 fibers.

[0119] The steps of calculating the compensation speed according to the weight of the glue applied and the running line speed include:

[0120] Inputting the weight of the glue application into a third calculation formula to obtain a third value;

[0121] Inputting the line speed of the sizing machine into the fourth calculation formula to obtain a fourth value;

[0122] The third value is multiplied by the fourth value to obtain the compensation speed;

[0123] Among them, the third calculation formula is F3=A3*W1+B3;

[0124] The fourth calculation formula is F4=A4*V1+B4;

[0125] Where: F3 represents the third value;

[0126] F4 represents the fourth value;

[0127] W1 represents the weight of glue applied to the paper after the sizing machine applies glue to the paper;

[0128] V1 represents the linear speed of the sizing machine;

[0129] A3, B3, A4 and B4 represent correction coefficients.

[0130] Among them, A3, B3, A4 and B4 can be obtained through calculation or field testing.

[0131] Further, the method further comprises: when the upper glue roller 2 and the lower glue roller 3 are closed, the upper glue beam 4 and the lower glue beam 5 apply the glue material to the upper glue roller 2 and the lower glue roller 3 respectively, adjusting the speed of the post-drying main driving motor according to the compensation speed; or,

[0132] When the upper glue beam 4 is closed with the upper glue roller 2, and the lower glue roller 3 is closed with the lower glue beam 5, when the upper glue roller 2 and the lower glue roller 3 are closed to glue the paper, the speed of the rear drying main drive motor is adjusted according to the compensation speed.

[0133] The step of adjusting the rotational speed of the rear drying main drive motor according to the compensation speed also includes: obtaining the speed value of the initial speed chain of the rear drying main drive motor, the setting value of the rear drying main drive motor to tighten or relax the paper, the setting value of the speed difference between different sections and the speed value adjusted by the tension PID; summing the speed value of the initial speed chain of the rear drying main drive motor, the setting value of the rear drying main drive motor to tighten or relax the paper, the setting value of the speed difference between different sections and the speed value adjusted by the tension PID to obtain a first setting value; summing the first setting value and the compensation speed to obtain a total speed setting; inputting the total speed setting into the rear drying main drive motor to adjust the rotational speed of the rear drying main drive motor according to the total speed setting; wherein the setting value of the speed difference between different sections is the difference in rotational speed between the glue roller drive motor and the rear drying main drive motor.

[0134] Specifically, Figure 5 As shown, the step of adjusting the rotation speed of the drying main driving motor according to the compensation speed also includes: obtaining the initial speed chain speed value of the drying main driving motor (that is, Figure 5 The initial speed chain speed value refers to the speed set for the glue drive motor when the paper production equipment is started. It is also necessary to obtain the set value for fast paper tension and relaxation (that is, Figure 5 The tension and relaxation settings in the Figure 5 The speed difference setting in the paper 1 processing device and the speed value adjusted by the tension PID are summed to obtain a first set value, wherein the paper processing equipment includes not only the glue application part and the post-drying part in the present application, but also the initial pressing part, and the set speed difference here refers to the speed difference of the motors in different parts of the entire paper 1 processing equipment, for example, it can be the speed difference set at the beginning between the glue application drive motor and the drying total drive motor in this embodiment. By considering these parts, the compensation torque required under different working conditions can be calculated more accurately, thereby improving the stability and performance of the paper 1 processing equipment in the process of processing paper 1. In the embodiment, the different divisions include at least the glue application roller drive motor and the drying total drive motor.

[0135] It is also necessary to explain here that Figures 4 to 6 As shown in, V2: speed chain speed setting; N: tension relaxation setting; T: speed difference setting; C1: tension adjustment value limit; C2: tension setting value; C3: actual tension value; Q: speed loop; A: torque / current loop; M: motor; C: tension loop.

[0136] The compensation methods provided by this application, such as Figure 2As shown, firstly, the paper machine adjuster torque compensation (i.e., the torque value of the above-mentioned glue roller drive motor is compensated) is used to stabilize the tension of the adjuster, and a post-drying speed compensation is proposed to stabilize the tension of the post-drying. When the machine speed changes and the adjuster pressure changes, the adjustment torque and post-drying speed will automatically change the compensation value according to the pressure and the actual speed. The main drive will automatically change the operation mode from speed control to tension control after the full width of the paper passes. When the glue machine starts to glue, the paper length is long, and the drying unit will automatically compensate the speed to keep the paper tension stable. The gain of the tension controller will also automatically adapt. After the paper breaks, the tension will automatically change to speed control, and the speed compensation value will return to the original value.

[0137] By using the above compensation method and replacing manual adjustment with a control program, the intelligent level of paper production is improved, the labor intensity is reduced, the control accuracy of the paper production process is improved, especially the control of the sizing machine and post-drying, thereby improving paper production efficiency.

[0138] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0139] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0140] An embodiment of the present application further provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps in any one of the above method embodiments are performed.

[0141] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0142] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0143] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0144] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0145] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of N computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or N of the modules or steps can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0146] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0147] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0148] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0149] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0150] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0151] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compensation method is applied to a paper production equipment, wherein the paper production equipment comprises a sizing machine and a post-drying machine arranged in sequence along the paper production direction, wherein the sizing machine comprises: An upper glue roller (2) and a lower glue roller (3) for applying glue to the paper (1), the glue machine also comprising a glue roller driving motor for driving the upper glue roller (2) and the lower glue roller (3) to rotate, so that the upper glue roller (2) and the lower glue roller (3) respectively apply glue to the two paper surfaces of the paper (1) during the rotation process, and the glue machine also comprising an upper glue beam (4) for providing glue to the upper glue roller (2) and a lower glue beam (5) for providing glue to the lower glue roller (3); Characterized in that the compensation method includes a method for determining the compensation torque, and the method for determining the compensation torque includes: Obtaining the closed glue roller line pressure between the upper glue roller (2) and the lower glue roller (3), the closed glue beam line pressure between the upper glue beam (4) and the upper glue roller (2), and between the lower glue beam (5) and the lower glue roller (3); Obtaining the linear speed of the sizing machine; The compensating torque required for closing the glue roller and the glue beam is calculated according to the closed glue roller linear pressure, the closed glue beam linear pressure and the linear speed; The output torque value of the glue roller driving motor is adjusted according to the compensation torque.

2. The compensation method according to claim 1, characterized in that: The step of adjusting the output torque value of the glue roller driving motor according to the compensation torque includes: The magnitude of the power supply current of the glue roller driving motor is adjusted according to the compensation torque to adjust the output torque value of the glue roller driving motor.

3. The compensation method according to claim 1, characterized in that: The step of calculating the compensation torque of the glue roller driving motor according to the closed glue roller linear pressure, the closed glue beam linear pressure and the linear speed includes: Inputting the closed glue roller line pressure and the closed glue beam line pressure into a first calculation formula to obtain a first value; Inputting the running linear speed into a second calculation formula to obtain a second value; Multiplying the first value by the second value to obtain the compensation torque; Wherein, the first calculation formula is: F1=A1*P1+A2*P2+B1; The second calculation formula is: F2 = A3 * V1 + B2; Wherein: F1 represents the first value; F2 represents the second value; P1 represents the closed glue beam line pressure; P2 represents the closed glue roller line pressure; V1 represents the linear speed of the sizing machine; A1, A2, B1, A3 and B2 represent correction coefficients.

4. The compensation method according to claim 1, characterized in that: The method further comprises: When the upper glue roller (2) and the lower glue roller (3) are closed, the output torque value of the glue roller driving motor is adjusted according to the compensation torque; or, When the upper glue beam (4) and the upper glue roller (2) are closed, the output torque value of the glue roller driving motor of the upper glue roller (2) is adjusted according to the compensation torque; or, when the lower glue beam (5) and the lower glue roller (3) are closed, the output torque value of the glue roller driving motor of the lower glue roller (3) is adjusted according to the compensation torque.

5. The compensation method according to claim 1, characterized in that: The post-drying machine comprises at least one rotatable drying cylinder (6) and a post-drying main driving motor for driving the drying cylinder (6) to rotate; The compensation method further includes a method for determining a compensation speed, and the method for determining a compensation speed includes: Obtaining the linear speed of the sizing machine; Obtaining the weight of glue applied on the paper (1); The compensation speed is calculated according to the weight of the glue applied and the running line speed; The compensation speed is input into the main driving motor of the post-drying machine to adjust the rotation speed of the post-drying main driving motor according to the compensation speed.

6. The compensation method according to claim 5, characterized in that: The step of calculating the compensation speed according to the weight of the glue application and the running line speed comprises: Inputting the weight of the glue application into a third calculation formula to obtain a third value; Inputting the linear speed of the size applicator into a fourth calculation formula to obtain a fourth value; Multiplying the third value by the fourth value to obtain the compensation speed; Wherein, the third calculation formula is F3=A3*W1+B3; The fourth calculation formula is F4=A4*V1+B4; Wherein: F3 represents the third value; F4 represents the fourth value; W1 represents the weight of glue applied to the paper after the sizing machine applies glue to the paper; V1 represents the linear speed of the sizing machine; A3, B3, A4 and B4 represent correction coefficients.

7. The compensation method according to claim 5, characterized in that: The method further comprises: When the upper glue roller (2) and the lower glue roller (3) are closed, and the upper glue beam (4) and the lower glue beam (5) apply glue to the upper glue roller (2) and the lower glue roller (3) respectively, the rotation speed of the post-drying main drive motor is adjusted according to the compensation speed; or, When the upper glue beam (4) and the upper glue roller (2) are closed, and the lower glue roller (3) and the lower glue beam (5) are closed, when the upper glue roller (2) and the lower glue roller (3) are closed to glue the paper, the rotation speed of the post-drying main drive motor is adjusted according to the compensation speed.

8. The compensation method according to claim 5, characterized in that: The step of adjusting the rotation speed of the post-drying main driving motor according to the compensation speed also includes: Obtaining the speed value of the initial speed chain of the post-drying main driving motor, the setting value of the post-drying main driving motor for tightening or relaxing the paper, the setting value of the speed difference between different divisions, and the speed value adjusted by the tension PID; summing the speed value of the initial speed chain of the post-drying main driving motor, the setting value of the post-drying main driving motor for tightening or relaxing the paper, the setting value of the speed difference between different divisions, and the speed value adjusted by the tension PID to obtain a first setting value; The first set value and the compensation speed are added together to obtain a total speed setting; Inputting the total speed setting into the post-drying main driving motor to adjust the rotation speed of the post-drying main driving motor according to the total speed setting; Wherein, the setting value of the speed difference between the different divisions is the speed difference between the glue roller drive motor and the post-drying main drive motor.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium comprises a stored program, wherein the program executes the method according to any one of claims 1 to 8 when executed.

10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 8 through the computer program.

11. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

Images