A paper tube outer layer polishing device control method and system

Abstract

The present invention relates to the technical field of polishing device control, and specifically to a control method and system for a paper tube outer layer polishing device, comprising: obtaining a paper tube rotation speed, advancement speed, and roughness; dividing all roughness into a number of roughness groups, obtaining the degree of hard particles at the corresponding position of the roughness according to the difference between the roughness in each roughness group and the corresponding time series distance, and obtaining a paper tube polishing adjustment coefficient based on the amplitude of the roughness in the roughness group; obtaining the paper tube advancement speed of the next cycle according to the paper tube polishing adjustment coefficient and the current paper tube advancement speed. The present invention analyzes and evaluates the degree of hard particles of roughness, thereby avoiding the influence of hard particles when evaluating the paper tube polishing effect, enabling the polishing equipment to set relevant parameters based on a more accurate paper tube polishing effect, thereby improving the paper tube polishing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing device control, and in particular to a control method and system for a paper tube outer layer polishing device. Background Art

[0002] A paper tube is a cylindrical hollow tubular material made from multiple layers of paper or cardboard through winding, bonding and other processes. It can be used to wrap precision instruments, LCD screens and other objects as their protective material. Therefore, in order to prevent the paper tube from wearing out the wrapped objects, the paper tube needs to be polished; but since hard particles such as stone powder and minerals are added during the production and preparation of paper tubes to enhance the structural strength of the paper tube and improve the forming stability of the paper tube, the roughness of the paper tube collected during polishing will be affected by the hard particles in the paper tube, and the polishing effect of the paper tube cannot be accurately evaluated, resulting in the paper tube outer layer polishing device being unable to set relevant parameters according to the accurate paper tube polishing effect, resulting in a decrease in the polishing quality of the paper tube. Summary of the Invention

[0003] The present invention provides a control method and system for a paper tube outer layer polishing device to solve the existing problem: hard particles in the paper tube will interfere with the evaluation of the polishing effect of the paper tube, resulting in the paper tube outer layer polishing device being unable to set relevant parameters according to the accurate paper tube polishing effect, resulting in a decrease in the paper tube polishing quality.

[0004] The control method and system of a paper tube outer layer polishing device of the present invention adopt the following technical solutions:

[0005] One embodiment of the present invention provides a method for controlling a paper tube outer layer polishing device, the method comprising the following steps:

[0006] Obtain the paper tube rotation speed, advancement speed and roughness in each cycle;

[0007] According to the paper tube rotation speed in the cycle, all roughness in the cycle is divided into several roughness groups; according to the difference between different roughness in the same roughness group and the corresponding time series distance, the hard particle factor of the corresponding position of each roughness is obtained; according to the difference in amplitude of all roughness and the hard particle factor of the corresponding position, the hard particle degree of the corresponding position of each roughness is obtained;

[0008] The roughness of the fiber part in the roughness group is obtained based on the amplitude of the roughness in the roughness group and the degree of hard particles at the corresponding position. The polishing uniformity of the corresponding position in the roughness group is obtained based on the difference between all the roughness in the same roughness group and the roughness of the fiber part, combined with the degree of hard particles at the corresponding position of the roughness. The paper tube polishing adjustment coefficient is obtained based on the difference in polishing uniformity of the corresponding positions of different roughness groups and the roughness of the fiber part.

[0009] The paper tube advancement speed for the next cycle is obtained based on the paper tube polishing adjustment coefficient and the roughness of the fiber part in the roughness group.

[0010] Preferably, the specific method of obtaining the paper tube rotation speed, advancement speed and roughness in each cycle includes:

[0011] Preset a cycle Sampling frequency ; Every interval Minutes are taken as a cycle, and the paper tube rotation speed and advancement speed in the same cycle are obtained. The sampling frequency of the laser scanner is set to kHz collects the paper tube roughness within the same period.

[0012] Preferably, the method of dividing all roughness in a cycle into several roughness groups according to the paper tube rotation speed in the cycle includes:

[0013] Divide all roughness in the same period into several time lengths: The roughness group, , is the paper tube speed during the cycle.

[0014] Preferably, the hard particle factor at the corresponding position of each roughness is obtained according to the difference between different roughnesses in the same roughness group and the corresponding time series distance, and the specific calculation formula included is:

[0015]

[0016] Where, Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The roughness and The distance between the roughness at the time of acquisition; Indicates the The roughness group The roughness and The distance between the roughness at the time of acquisition; Indicates the The roughness group The magnitude of the roughness; Indicates the The roughness group The magnitude of the roughness; represents the absolute value function; Represents an exponential function with a natural constant as its base.

[0017] Preferably, the degree of hard particles at the corresponding position of each roughness is obtained based on the difference in amplitude of all roughnesses and the hard particle factor at the corresponding position, and the specific calculation formula included is:

[0018]

[0019] Where, Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the number of roughness groups; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The roughness group The magnitude of the roughness; Indicates the The roughness group The magnitude of the roughness; represents the absolute value function; Represents the preset hyperparameters.

[0020] Preferably, the roughness of the fiber part in the roughness group is obtained according to the amplitude of the roughness in the roughness group and the degree of hard particles at the corresponding position, and the specific calculation formula included is:

[0021]

[0022] Where, Indicates the The roughness of the fiber part in each roughness group; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the The roughness group The magnitude of the roughness; Represents an exponential function with a natural constant as its base.

[0023] Preferably, the polishing uniformity of the corresponding position of the roughness group is obtained based on the difference between all roughnesses in the same roughness group and the roughness of the fiber part, combined with the degree of hard particles at the corresponding position of the roughness, including the specific calculation formula:

[0024]

[0025] Where, Indicates the The grinding uniformity of the corresponding position of each roughness group; represents the linear normalization function.

[0026] Preferably, the paper tube polishing adjustment coefficient is obtained according to the difference in polishing uniformity of corresponding positions of different roughness groups and the roughness of the fiber part, and the specific calculation formula included is:

[0027]

[0028] Where, Indicates the paper tube grinding adjustment coefficient; Indicates the The change of grinding uniformity at the corresponding position of each roughness group; Indicates the The change of grinding uniformity at the corresponding position of each roughness group; Indicates the The grinding uniformity of the corresponding position of each roughness group; Indicates the The grinding uniformity of the corresponding position of each roughness group; Indicates the number of roughness groups; Indicates the The roughness of the fiber part in each roughness group; Represents the sigmoid function.

[0029] Preferably, the method of obtaining the paper tube advancing speed of the next cycle according to the paper tube polishing adjustment coefficient and the roughness of the fiber part in the roughness group includes:

[0030] The roughness of the fiber part in all roughness groups is input into the PID control module to obtain the primary advancement speed of the paper tube. The difference between 1 and the paper tube polishing adjustment coefficient is multiplied by the primary advancement speed of the paper tube to obtain the paper tube advancement speed.

[0031] Another embodiment of the present invention provides a control system for a paper tube outer layer polishing device, comprising a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, it implements the steps of any one of the above-mentioned methods for controlling a paper tube outer layer polishing device.

[0032] The beneficial effects of the technical solution of the present invention are as follows: the present application obtains the paper tube rotation speed, advancement speed and roughness in each cycle; divides all roughness in the cycle into several roughness groups, and obtains the hard particle factor of the position corresponding to the roughness. The collected roughness is not entirely the roughness of the fiber part in the paper tube. In order to accurately evaluate the polishing effect of the paper tube, it is necessary to obtain the roughness of the fiber part. The distribution of fibers in the paper tube is similar in a local range. Therefore, the hard particle factor of the position corresponding to the roughness can be obtained according to the difference in amplitude and time sequence between different roughnesses. Since the roughness corresponding to all hard particles in the paper tube is similar, the difference in amplitude of the roughness corresponding to a large hard particle factor is small. Therefore, the degree of hard particles at the position corresponding to the roughness can be obtained through the amplitude of each roughness and the hard particle factor at the corresponding position.

[0033] After obtaining the degree of hard particles at the corresponding position of the roughness, this can be used as a basis to assign a calculation weight to each roughness involved in calculating the roughness of the fiber part to obtain the roughness of the fiber part. Furthermore, the more unstable the change in the roughness of the fiber part is, the worse the paper tube polishing effect is, and the paper tube polishing adjustment coefficient is obtained. The relevant parameters for polishing the paper tube are set according to the paper tube polishing adjustment coefficient. This application analyzes and evaluates the degree of hard particles of roughness to avoid the influence of hard particles when evaluating the paper tube polishing effect, so that the polishing equipment can set relevant parameters based on a more accurate paper tube polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a flow chart of the steps of a control method for a paper tube outer layer polishing device of the present invention. DETAILED DESCRIPTION

[0036] To further illustrate the technical means and effectiveness of the present invention in achieving its intended objectives, the following, in conjunction with the accompanying drawings and preferred embodiments, describes in detail a method and system for controlling a paper tube outer layer polishing device according to the present invention, including its specific implementation, structure, features, and effectiveness. In the following description, references to "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0037] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0038] The following describes in detail a specific solution of a paper tube outer layer polishing device control method and system provided by the present invention with reference to the accompanying drawings.

[0039] See also Figure 1 , which shows a flowchart of a method for controlling a paper tube outer layer polishing device according to an embodiment of the present invention, the method comprising the following steps:

[0040] Step S001: Obtain the paper tube rotation speed, advancement speed and roughness in each cycle.

[0041] It should be noted that the paper tube is a tubular object made of paper, which can be used to wrap precision instruments, LCD screens and other objects as their protective material. In order to prevent the paper tube from wearing the wrapped objects, it is necessary to ensure that the surface of the paper tube is smooth. Therefore, it is necessary to use a paper tube outer layer polishing device to polish the outer layer of the paper tube; therefore, this embodiment proposes a paper tube outer layer polishing device control method, by detecting and analyzing the roughness of the paper tube during the polishing process, regulating the paper tube outer layer polishing device, to ensure that the outer layer of the paper tube after polishing is smooth, so it is necessary to first collect the roughness of the paper tube during the polishing process.

[0042] It should be further explained that the paper tube outer layer polishing device includes but is not limited to the following modules:

[0043] 1. Paper tube clamping module: used to clamp and fix the paper tube.

[0044] 2. Motor module: used to drive the clamping module to rotate, so that the paper tube fixed by the clamping module rotates.

[0045] 3. Push rod module: used to push the motor module to move the paper tube horizontally for complete polishing.

[0046] 4. Grinding head: The grinding head is used to grind the rotating paper tube.

[0047] 5. Roughness detection module: The roughness detection module is a laser scanner installed behind the grinding head, which is used to detect the roughness of the outer layer of the paper tube during the grinding process.

[0048] 6. Speed ​​detection module: The speed detection module is a speed sensor installed at the motor module, which is used to detect the speed of the paper tube during the grinding process.

[0049] 7. Clock Module: The clock module is used to synchronize the time of each module, ensuring the accuracy and synchronization of data acquisition and control instructions. It can provide precise time identification for data timestamps and event recording.

[0050] 8. Data Processing Module: The data processing module is the core module of the paper tube outer layer polishing device and is equipped with a control computer. It is responsible for receiving, processing, and analyzing data from various modules to obtain the paper tube polishing adjustment coefficient.

[0051] 9.PID control module: The PID control module is the core module of the paper tube outer layer polishing device, which is used to adjust the propulsion speed of the polishing paper tube according to the paper tube polishing adjustment coefficient and roughness.

[0052] Specifically, set a cycle Sampling frequency , and The specific value of can be set according to the actual situation. This embodiment does not make a hard requirement. 、 Take the PID control module as an example; The paper tube rotation speed and advancement speed are obtained within the same period, and the sampling frequency of the laser scanner is set to kHz collects the paper tube roughness within the same period.

[0053] It should be further explained that the specific control method of the paper tube outer layer grinding device in this embodiment is to adjust the paper tube advancing speed of the paper tube outer layer grinding device at intervals based on all the roughness collected during this period.

[0054] Step S002: According to the paper tube rotation speed in the cycle, all roughness in the cycle is divided into several roughness groups; according to the difference between different roughness in the same roughness group and the corresponding time distance, the hard particle factor of the corresponding position of each roughness is obtained; according to the difference in amplitude of all roughness and the hard particle factor of the corresponding position, the hard particle degree of the corresponding position of each roughness is obtained.

[0055] It should be noted that since hard particles such as stone powder and minerals are added during the production of paper tubes to enhance the structural strength of the paper tubes and improve the stability of paper tube molding, the roughness obtained by the roughness detection module is not entirely the roughness of the fiber part of the paper tube, that is, the hard particles present in the paper tube will interfere with the evaluation of the roughness of the paper tube surface. Therefore, in order to avoid the interference caused by the hard particles in the paper tube, it is necessary to obtain the degree of hard particles at the corresponding position of the roughness.

[0056] It should be further explained that, due to the similar distribution of fibers in the paper tube within a local area, the closer the distance between a certain roughness and other roughness at the corresponding location and the greater the difference in amplitude, the more likely the location corresponding to that roughness is to be a hard particle. Therefore, this can be used as a basis to obtain the hard particle factor for that roughness location. Therefore, the larger the hard particle factor for a roughness location, the more likely that the location corresponding to that roughness is to be a hard particle. However, the hard particles in the paper tube have high hardness, so their roughness does not change significantly due to polishing. Therefore, the roughness corresponding to all hard particles in the paper tube is similar. Further combining the hard particle factor for each roughness location can determine the degree of hardness at that roughness location.

[0057] Preferably, in a specific embodiment of the present invention, all roughnesses in the same period are divided into several time periods of The roughness group, , is the paper tube rotation speed in the cycle (if the duration corresponding to the last roughness group in the cycle is less than t, all remaining roughness groups are classified as the last roughness group).

[0058] Furthermore, for the The roughness group Roughness, according to The roughness group The roughness and The difference between each roughness in the roughness group, combined with the The roughness group The roughness and The temporal distance between each roughness in the roughness group is obtained. The roughness group The specific calculation formula for the hard particle factor at the corresponding position of the roughness is:

[0059]

[0060] Where, Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The roughness and The distance between the roughness at the time of acquisition; Indicates the The roughness group The roughness and The distance between the roughness at the time of acquisition; Indicates the The roughness group The magnitude of the roughness; Indicates the The roughness group The magnitude of the roughness; represents the absolute value function; Represents an exponential function with a natural constant as the base. In this embodiment, Model to present inverse proportional relationship and normalization processing, As the input of the model, the implementer can set the inverse proportional function and normalization function according to the actual situation.

[0061] It should be noted that the hard particle factor at the corresponding position of the roughness indicates the possibility that the corresponding position of the roughness is a hard particle. The closer the distance between the roughness and other roughness at the corresponding position and the greater the difference in amplitude, the more likely the corresponding position of the roughness is to be a hard particle. The larger the value is, the closer the distance between the two corresponding positions of roughness is. The larger the value of , the greater the difference in the amplitude of the two roughnesses. The larger the value is, the more likely the roughness corresponding position is to be a hard particle.

[0062] It should be further explained that since the roughness corresponding to all hard particles in the paper tube is similar, the difference in amplitude of the roughness corresponding to the large hard particle factor is small. Therefore, the degree of hard particles at the corresponding position of the roughness can be obtained through the amplitude of each roughness and the hard particle factor at the corresponding position.

[0063] Preferably, in a specific embodiment of the present invention, for the The roughness group Roughness, according to The roughness group The difference in amplitude between the first roughness and all roughness, combined with the hard particle factors at the corresponding positions of all roughness, is used to obtain the The roughness group The specific calculation formula for the degree of hard particles at the corresponding position of each roughness is:

[0064]

[0065] Where, Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the number of roughness groups; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The roughness group The magnitude of the roughness; Indicates the The roughness group The magnitude of the roughness; represents the absolute value function; Represents the preset hyperparameter, the purpose of which is to avoid the situation where the denominator is 0 during the fraction operation; The specific value of can be set according to the actual situation. This embodiment does not make a hard requirement. Let’s take this as an example.

[0066] It should be noted that The larger the value is, the larger the hard particle factor is at the corresponding positions of the two roughnesses and the two roughnesses are similar. Since the roughnesses corresponding to the hard particles are similar, for any roughness, when the hard particle factor is large at the corresponding position of the roughness and the difference in amplitude between the roughness and other roughnesses with large hard particle factors is small, the corresponding position of the roughness has more hard particle characteristics, that is, the degree of hard particles at the corresponding position of the roughness is greater.

[0067] At this point, the degree of hard particles at all positions corresponding to the roughness is obtained.

[0068] Step S003: According to the amplitude of the roughness in the roughness group and the degree of hard particles at the corresponding position, obtain the roughness of the fiber part in the roughness group; according to the difference between all the roughness in the same roughness group and the roughness of the fiber part, combined with the degree of hard particles at the corresponding position of the roughness, obtain the polishing uniformity of the corresponding position of the roughness group; according to the difference in polishing uniformity of the corresponding positions of different roughness groups and the roughness of the fiber part, obtain the paper tube polishing adjustment coefficient.

[0069] It should be noted that the fiber layer of the paper tube directly determines the smoothness of the paper tube surface, and the polishing effect of the outer layer of the paper tube is mainly reflected in the fiber part; therefore, after obtaining the degree of hard particles at all positions corresponding to the roughness through step S002, the weight can be set based on the degree of hard particles at the positions corresponding to the roughness, and the overall roughness of the fiber part in each roughness group can be obtained, and the polishing uniformity at the corresponding position of each roughness group in the paper tube can be obtained; and the more unstable the change in the roughness of the fiber part, the worse the polishing effect of the paper tube, thereby obtaining the paper tube polishing adjustment coefficient.

[0070] Preferably, in a specific embodiment of the present invention, for the Roughness group, according to All roughness in the roughness group and the degree of hard particles at the corresponding position of the roughness are obtained. The specific calculation formula for the grinding uniformity of the corresponding position of each roughness group is:

[0071]

[0072] Where, Indicates the The roughness of the fiber part in each roughness group; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the The roughness group The magnitude of the roughness; Indicates the The grinding uniformity of the corresponding position of each roughness group; Represents a linear normalization function whose normalization range is all roughness groups ; Represents an exponential function with a natural constant as the base. In this embodiment, Model to present inverse proportional relationship and normalization processing, As the input of the model, the implementer can set the inverse proportional function and normalization function according to the actual situation.

[0073] It should be noted that when the roughness in the roughness group includes the roughness of some hard particles, the roughness of the fiber part in the roughness group cannot be directly obtained. Therefore, when calculating the roughness of the fiber part in the roughness group, it is necessary to give a negatively correlated calculation weight according to the degree of hard particles in the roughness. That is, the more hard particle characteristics the roughness in the roughness group has, the less the roughness participates in the calculation of the roughness of the fiber part in the roughness group, so as to avoid the interference of hard particles; the roughness of the fiber part in the roughness group is obtained.

[0074] It should be further explained that the polishing uniformity of the corresponding position of the roughness group represents the uniformity of polishing of the fiber part in the roughness group. After obtaining the roughness of the fiber part in the roughness group, the difference between all the roughness in the roughness group and the roughness of the fiber part can be combined with the degree of hard particles of the roughness to give a negative correlation calculation weight. The smaller the degree of hard particles of the roughness in the roughness group and the smaller the difference between it and the roughness of the fiber part, the more uniformly the fiber part in the roughness group is polished. When the change in the polishing uniformity of the corresponding position of the roughness group is more unstable and the fiber part is rougher, it means that the polishing effect of the paper tube is worse. The worse the polishing effect of the paper tube, the more the outer layer polishing device of the paper tube should be adjusted. Therefore, the paper tube polishing adjustment coefficient can be obtained.

[0075] Preferably, in a specific embodiment of the present invention, the paper tube polishing adjustment coefficient is obtained according to the polishing uniformity of the corresponding positions of all roughness groups and the roughness of the fiber parts in all roughness groups. The specific calculation formula is:

[0076]

[0077] Where, Indicates the paper tube grinding adjustment coefficient; Indicates the The change of grinding uniformity at the corresponding position of each roughness group; Indicates the The change of grinding uniformity at the corresponding position of each roughness group; Indicates the The grinding uniformity of the corresponding position of each roughness group; Indicates the The grinding uniformity of the corresponding position of each roughness group; Indicates the number of roughness groups; Indicates the The roughness of the fiber part in each roughness group; represents a sigmoid function, which is used to perform a normalization operation in this embodiment.

[0078] It should be noted that It represents the change of grinding uniformity at the corresponding position of the roughness group. The larger the value is, the more unstable the change in the grinding uniformity of the corresponding position of the roughness group is. At the same time, the more unstable the change in the grinding uniformity of the corresponding position of the roughness group is, the rougher the fiber part of the roughness group is, which means the worse the paper tube grinding effect is, and the more the paper tube outer layer grinding device should be adjusted.

[0079] At this point, the paper tube polishing adjustment coefficient is obtained.

[0080] Step S004: Obtain the paper tube advancement speed of the next cycle based on the paper tube polishing adjustment coefficient and the roughness of the fiber part in the roughness group.

[0081] It should be noted that after obtaining the roughness of the fiber part in the roughness group and the paper tube polishing adjustment coefficient through step S003, the roughness of the fiber part in all roughness groups in a complete cycle can be input into the PID control module to obtain the primary relevant parameters for polishing the paper tube. Since the larger the polishing adjustment coefficient, the worse the paper tube polishing effect, it is necessary to slow down the paper tube advancement speed to improve the paper tube polishing quality.

[0082] Specifically, the roughness of the fiber part in all roughness groups is input into the PID control module to obtain the primary advancement speed of the paper tube. Since obtaining the primary advancement speed of the paper tube through the roughness and PID control module is a well-known prior art, it will not be described in detail in this embodiment; the difference between 1 and the paper tube polishing adjustment coefficient is multiplied by the primary advancement speed of the paper tube to obtain the paper tube advancement speed. The specific calculation formula is:

[0083]

[0084] Where, Indicates the paper tube advancing speed; Indicates the paper tube grinding adjustment coefficient; Indicates the primary advancement speed of the paper tube.

[0085] It should be noted that this embodiment avoids the influence of hard particles when evaluating the grinding effect of paper tubes by analyzing and evaluating the degree of roughness of hard particles, so that the grinding equipment can set relevant parameters according to a more accurate paper tube grinding effect, thereby improving the quality of paper tube grinding.

[0086] Another embodiment of the present invention provides a control system for a paper tube outer layer polishing device, comprising a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, it implements a method for controlling a paper tube outer layer polishing device in steps S001 to S004.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for controlling a paper tube outer layer polishing device, characterized in that: The method comprises the following steps: Obtain the paper tube rotation speed, advancement speed and roughness in each cycle; According to the paper tube rotation speed in the cycle, all roughness in the cycle is divided into several roughness groups; according to the difference between different roughness in the same roughness group and the corresponding time series distance, the hard particle factor of the corresponding position of each roughness is obtained; according to the difference in amplitude of all roughness and the hard particle factor of the corresponding position, the hard particle degree of the corresponding position of each roughness is obtained; The roughness of the fiber part in the roughness group is obtained based on the amplitude of the roughness in the roughness group and the degree of hard particles at the corresponding position. The polishing uniformity of the corresponding position in the roughness group is obtained based on the difference between all the roughness in the same roughness group and the roughness of the fiber part, combined with the degree of hard particles at the corresponding position of the roughness. The paper tube polishing adjustment coefficient is obtained based on the difference in polishing uniformity of the corresponding positions of different roughness groups and the roughness of the fiber part. The paper tube advancement speed for the next cycle is obtained based on the paper tube polishing adjustment coefficient and the roughness of the fiber part in the roughness group.

2. A method for controlling a paper tube outer layer polishing device according to claim 1, characterized in that: The specific method for obtaining the paper tube rotation speed, advancement speed and roughness in each cycle is as follows: Preset a cycle Sampling frequency ; Every interval Minutes are taken as a cycle, and the paper tube rotation speed and advancement speed in the same cycle are obtained. The sampling frequency of the laser scanner is set to kHz collects the paper tube roughness within the same period.

3. A method for controlling a paper tube outer layer polishing device according to claim 1, characterized in that: The method of dividing all roughness in a cycle into several roughness groups according to the paper tube rotation speed in the cycle includes the following specific methods: Divide all roughness in the same period into several time lengths: The roughness group, , is the paper tube speed during the cycle.

4. A method for controlling a paper tube outer layer polishing device according to claim 1, characterized in that: According to the difference between different roughnesses in the same roughness group and the corresponding time series distance, the hard particle factor at the corresponding position of each roughness is obtained, and the specific calculation formula is as follows: Where, Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The roughness and The distance between the roughness at the time of acquisition; Indicates the The roughness group The roughness and The distance between the roughness at the time of acquisition; Indicates the The roughness group The magnitude of the roughness; Indicates the The roughness group The magnitude of the roughness; represents the absolute value function; Represents an exponential function with a natural constant as its base.

5. The control method of a paper tube outer layer polishing device according to claim 1, characterized in that: The specific calculation formula for obtaining the hard particle degree at the corresponding position of each roughness is as follows based on the difference in amplitude of all roughness and the hard particle factor at the corresponding position: Where, Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the number of roughness groups; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The roughness group The hard particle factor at the corresponding position of the roughness; Indicates the The roughness group The magnitude of the roughness; Indicates the The roughness group The magnitude of the roughness; represents the absolute value function; Represents the preset hyperparameters.

6. A method for controlling a paper tube outer layer polishing device according to claim 1, characterized in that: The roughness of the fiber part in the roughness group is obtained according to the amplitude of the roughness in the roughness group and the degree of hard particles at the corresponding position, and the specific calculation formula included is: Where, Indicates the The roughness of the fiber part in each roughness group; Indicates the The number of roughness levels in a roughness group; Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the The roughness group The degree of hard particles at each roughness position; Indicates the The roughness group The magnitude of the roughness; Represents an exponential function with a natural constant as its base.

7. A method for controlling a paper tube outer layer polishing device according to claim 6, characterized in that: The grinding uniformity of the corresponding position of the roughness group is obtained based on the difference between all roughnesses in the same roughness group and the roughness of the fiber part, combined with the degree of hard particles at the corresponding position of the roughness. The specific calculation formula is as follows: Where, Indicates the The grinding uniformity of the corresponding position of each roughness group; represents the linear normalization function.

8. A method for controlling a paper tube outer layer polishing device according to claim 1, characterized in that: According to the difference in polishing uniformity of corresponding positions of different roughness groups and the roughness of the fiber part, the paper tube polishing adjustment coefficient is obtained, and the specific calculation formula included is: Where, Indicates the paper tube grinding adjustment coefficient; Indicates the The change of grinding uniformity at the corresponding position of each roughness group; Indicates the The change of grinding uniformity at the corresponding position of each roughness group; Indicates the The grinding uniformity of the corresponding position of each roughness group; Indicates the The grinding uniformity of the corresponding position of each roughness group; Indicates the number of roughness groups; Indicates the The roughness of the fiber part in each roughness group; Represents the sigmoid function.

9. A method for controlling a paper tube outer layer polishing device according to claim 1, characterized in that: The paper tube advancing speed of the next cycle is obtained according to the paper tube polishing adjustment coefficient and the roughness of the fiber part in the roughness group, including the specific method as follows: The roughness of the fiber part in all roughness groups is input into the PID control module to obtain the primary advancement speed of the paper tube. The difference between 1 and the paper tube polishing adjustment coefficient is multiplied by the primary advancement speed of the paper tube to obtain the paper tube advancement speed.

10. A control system for a paper tube outer layer polishing device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the computer program is executed by the processor, the steps of the method for controlling the outer layer grinding device of a paper tube are implemented as described in any one of claims 1 to 9.

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