A rubber waste crushing equipment

Abstract

The present invention relates to the technical field of crushing equipment, and in particular to a rubber waste crushing equipment, which obtains crushing state data of several rubber waste samples of each type under different crushing tools, quantifies a first tearing difficulty factor relative to a tearing device and a second tearing difficulty factor relative to a cutting roller based on the crushing state data, and then determines a crushing sequence adjustment index for each rubber waste sample, and determines whether to adjust the crushing sequence of the rubber waste crushing equipment under each type of rubber waste based on the crushing sequence adjustment index. The present invention improves the crushing efficiency and crushing effect of the rubber waste crushing equipment by adaptively determining a suitable crushing sequence for the rubber waste crushing equipment under each type of rubber waste.

Description

Technical Field

[0001] The invention relates to the technical field of crushing equipment, and in particular to a rubber waste crushing equipment. Background Art

[0002] In order to reduce the impact of rubber waste on the environment, a device that can efficiently process rubber waste and realize resource recovery, namely rubber waste crushing equipment, has been designed and developed. When the crushing equipment is performing the crushing operation, the rubber waste is crushed by a tearer and a cutting roller. The tearer is used to increase the cracks of the rubber waste, and the cutting roller is used to shred the whole.

[0003] Different types of rubber waste have different physical and mechanical properties and behaviors under different conditions. For example, waste tires, rubber pipes, rubber blocks and rubber pads, if all types of rubber waste are still crushed according to the existing rubber waste crushing equipment, which first uses a tearer and then a cutting roller, the cutting efficiency of the rubber waste crushing equipment will be low, which will cause unnecessary damage to the crushing tools. Summary of the invention

[0004] In order to solve the technical problem that the fixed crushing sequence in the above-mentioned existing rubber waste crushing equipment leads to low cutting efficiency, the purpose of the present invention is to provide a rubber waste crushing equipment, and the technical solution adopted is as follows:

[0005] An embodiment of the present invention provides a rubber waste crushing device, comprising a memory and a processor, wherein the processor is used to process instructions stored in the memory to implement the following control process:

[0006] In the process of the rubber waste crushing equipment crushing several types of rubber waste, the tearing pressure curve, the tearing displacement curve and the cutting pressure curve of the cutting roller corresponding to several rubber waste samples of the same type are obtained in real time;

[0007] For any rubber waste sample, a vector direction analysis is performed according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure; a representative value ascending sequence of the tearing pressure curve and a displacement value update sequence of the tearing displacement curve are obtained, a vector direction analysis is performed on the representative value ascending sequence and the displacement value update sequence, and a first tearing difficulty factor is determined in combination with the degree of the rising trend of the tearing pressure;

[0008] Performing vector direction analysis on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment; determining the second tearing difficulty factor according to the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment and the degree of fluctuation of the cutting pressure curve;

[0009] In combination with the first tearing difficulty factor and the second tearing difficulty factor, a crushing sequence adjustment index of each rubber waste sample is determined; based on the crushing sequence adjustment index, it is determined whether to adjust the crushing sequence of the rubber waste crushing equipment under each type of rubber waste.

[0010] Further, the performing vector direction analysis according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure includes:

[0011] Determine the direction angle value of the target vector corresponding to the tearing pressure curve;

[0012] If the direction angle value is within the first preset angle range, the ratio of the direction angle value to 90 degrees is used as the degree of the rising trend of the tearing pressure; otherwise, the degree of the rising trend of the tearing pressure is assigned as the first parameter.

[0013] Furthermore, the step of determining the direction angle value of the target vector corresponding to the tearing pressure curve includes:

[0014] The tearing pressure curve is converted into discrete data points in a two-dimensional coordinate system, and the discrete data points are input into a PCA model to obtain a plurality of two-dimensional vectors, and then the eigenvalue of each two-dimensional vector is obtained;

[0015] The two-dimensional vector corresponding to the maximum eigenvalue is used as the target vector, the ratio of the ordinate to the abscissa in the target vector is determined, and the arc tangent angle value of the ratio is used as the direction angle value of the target vector.

[0016] Further, the obtaining of the ascending sequence of representative values ​​of the tearing pressure curve and the updating sequence of displacement values ​​of the tearing displacement curve comprises:

[0017] The tearing pressure curve is converted into a frequency domain space, and the inverse of the frequency corresponding to the maximum amplitude in the frequency domain space is determined as the tearing period; the tearing pressure curve is evenly divided using the tearing period to obtain a plurality of tearing pressure curve segments;

[0018] Determine the maximum pressure value in each tearing pressure curve segment, use the maximum pressure value as the pressure representative value of the corresponding tearing pressure curve segment, and form all the pressure representative values ​​into a representative value sequence;

[0019] sorting the data in the representative value sequence in ascending order to obtain a representative value ascending sequence; recording the order change process between the representative value sequence and the representative value ascending sequence as an order value exchange method;

[0020] According to the acquisition time of each pressure data in the representative value sequence, the displacement value of the same acquisition time in the tearing displacement curve is determined, and all the displacement values ​​are combined into a displacement value sequence;

[0021] According to the order value swapping method, the displacement value sequence is updated to obtain a displacement value update sequence.

[0022] Furthermore, the vector direction analysis is performed on the representative value ascending sequence and the displacement value updating sequence, and the first tearing difficulty factor is determined in combination with the rising trend of the tearing pressure, including:

[0023] Determine the direction angle value of the target vector corresponding to the representative value ascending sequence, recorded as a first angle value; determine the direction angle value of the target vector corresponding to the displacement value update sequence, recorded as a second angle value;

[0024] Calculating a difference between the first angle value and the second angle value, and then determining a ratio of the difference to 90 degrees;

[0025] The first tearing difficulty factor is determined by combining the ratio with the degree of the rising trend of the tearing pressure.

[0026] Furthermore, the vector direction analysis is performed on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment, including:

[0027] The cutting pressure curve is evenly divided by using the tearing cycle to obtain cutting pressure curve segments of a plurality of cutting cycles;

[0028] Selecting the minimum pressure value in the cutting pressure curve segment, and using the minimum pressure value to divide the cutting pressure curve segment into a front curve segment and a rear curve segment; determining the direction angle value of the target vector corresponding to the front curve segment and the rear curve segment;

[0029] If the direction angle value of the target vector corresponding to the previous curve segment is within the second preset angle range, the ratio of the direction angle value of the target vector corresponding to the previous curve segment to 360 degrees is used as the degree of the downward trend; otherwise, the degree of the downward trend is assigned to the first parameter;

[0030] If the direction angle value of the target vector corresponding to the rear curve segment is within the first preset angle range, the ratio of the direction angle value of the target vector corresponding to the rear curve segment to 90 degrees is used as the degree of the rising trend; otherwise, the degree of the rising trend is assigned to the first parameter.

[0031] Furthermore, the second tearing difficulty factor is determined according to the downward trend of the front curve segment, the upward trend of the rear curve segment, and the fluctuation of the cutting pressure curve, including:

[0032] Calculate the average value of the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment corresponding to each cutting cycle, and use the inverse proportional value of the mean of all the average values ​​as the first cutting effect indicator;

[0033] Calculating the variance corresponding to all the pressure data in the cutting pressure curve, and using the variance as the fluctuation degree of the cutting pressure curve; normalizing the fluctuation degree to obtain a second cutting effect index;

[0034] The first cutting effect index and the second cutting effect index are combined to obtain a second tearing difficulty factor.

[0035] Further, judging whether to adjust the crushing order of the rubber waste crushing equipment for each type of rubber waste according to the crushing order adjustment index includes:

[0036] For any type of rubber waste, an adjustment threshold is set, and the number of rubber waste samples whose crushing order adjustment index is greater than the adjustment threshold is counted; if the number of rubber waste samples of this type of rubber waste is greater than a preset number, the crushing order of the rubber waste crushing equipment under this type of rubber waste is adjusted.

[0037] A rubber waste crushing device comprises a crushing mechanism, wherein the crushing mechanism comprises a tearing device and a cutting roller, and the rubber waste crushing device further comprises a crushing operation sequence control module, wherein the crushing operation sequence control module is installed on the crushing mechanism, and wherein the crushing operation sequence control module comprises a sensor and a controller, wherein the sensor signal is connected to the controller, and wherein the sensor is used to obtain in real time a tearing pressure curve, a tearing displacement curve, and a cutting pressure curve of the tearing device corresponding to several rubber waste samples of the same type during the process of the rubber waste crushing device crushing several types of rubber waste, and wherein the controller performs a vector direction analysis according to the tearing pressure curve for any rubber waste sample to determine the degree of the rising trend of the tearing pressure;

[0038] Obtaining a representative value ascending sequence of the tearing pressure curve and a displacement value update sequence of the tearing displacement curve, performing vector direction analysis on the representative value ascending sequence and the displacement value update sequence, and determining a first tearing difficulty factor in combination with the degree of the rising trend of the tearing pressure;

[0039] Performing vector direction analysis on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment; determining the second tearing difficulty factor according to the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment and the degree of fluctuation of the cutting pressure curve;

[0040] In combination with the first tearing difficulty factor and the second tearing difficulty factor, a crushing sequence adjustment index of each rubber waste sample is determined; based on the crushing sequence adjustment index, it is determined whether to adjust the crushing sequence of the rubber waste crushing equipment under each type of rubber waste.

[0041] Furthermore, the rubber waste crushing equipment also includes a moving device, the tearer and the cutting roller are moved to corresponding working positions along the moving device, and the moving device is a guide rail or a slide rail.

[0042] The present invention has the following beneficial effects:

[0043] The present invention provides a rubber waste crushing device. Through the crushing state data of several rubber waste samples of each type under different crushing tools, a first tearing difficulty factor relative to a tearer and a second tearing difficulty factor relative to a cutting roller are quantified, and a crushing sequence adjustment index of each rubber waste sample is obtained, that is, the crushing sequence adjustment index is used to judge whether to adjust the crushing sequence of the rubber waste crushing device under each type of rubber waste. The invention overcomes the defect that the fixed crushing sequence in the rubber waste crushing device leads to low cutting efficiency, and can adaptively determine a suitable crushing sequence for the rubber waste crushing device under each type of rubber waste. The suitable crushing sequence can ensure the crushing efficiency and crushing effect while reducing unnecessary damage to the crushing tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. 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 creative work.

[0045] Figure 1 A schematic flow chart of a data processing process in a rubber waste crushing device provided by the present invention;

[0046] Figure 2 Schematic diagram of the process of determining the tearing difficulty factor in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the technical solutions proposed by the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0048] 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.

[0049] A rubber waste crushing equipment embodiment 1:

[0050] This embodiment provides a rubber waste crushing device, including a crushing mechanism, which is a conventional crushing device. In this embodiment, the crushing mechanism includes a tearing device and a cutting roller, the tearing device is used to puncture and pull the processing object, the cutting roller is used to cut the processing object, and the tearing device and the cutting roller move to corresponding working positions along the moving guide rail. It should be understood that the crushing mechanism also includes a related control device for controlling the tearing device and the cutting roller to crush the processing object according to a preset crushing rule.

[0051] The rubber waste crushing equipment also includes a crushing operation sequence control module, which is installed on the crushing mechanism and includes sensors and controllers. Among them, the sensors include a displacement sensor and a pressure sensor of the tearing machine, and a pressure sensor of the roller cutter bearing. The displacement sensor of the tearing machine is used to collect the relative movement value between the tearing machine and the rubber waste during the process of the rubber waste crushing equipment crushing different types of rubber waste. The pressure sensor of the tearing machine is used to collect the pressure value of the rubber waste during the tearing process. The displacement sensor and the pressure sensor are installed below the tearing machine; the pressure sensor of the roller cutter bearing is used to collect the pressure change during the cutting process. The pressure sensor is installed near or on the roller cutter bearing.

[0052] Therefore, through the sensors in the crushing operation sequence control module, the tearing pressure curve, tearing displacement curve and cutting pressure curve of the tearer corresponding to several rubber waste samples of the same type can be obtained in real time during the process of the rubber waste crushing equipment crushing several types of rubber waste.

[0053] The controller can be a data processing chip such as a CPU (Central Process Unit), an MCU (Microcontroller Unit), or a data processing device such as a computer host. The sensor signal is connected to the controller, and the two can be connected by wire through a data transmission line, or wirelessly through wireless communication methods such as Bluetooth and WiFi. In addition, the sensor and controller can also be integrated to form a device that integrates crushing data collection and crushing data processing functions.

[0054] The existing rubber crushing equipment can only crush all types of processing objects in the order of tearing device first and cutting roller knife later, which cannot meet the specific requirements of different types of rubber waste, resulting in low crushing efficiency and crushing effect. In order to improve the crushing efficiency of the rubber crushing equipment, based on the crushing equipment structure in the existing patent CN116373171A, the crushing data of the current rubber crushing equipment can be processed to obtain the crushing sequence adjustment index, and based on the crushing sequence adjustment index, it is determined whether to adjust the crushing sequence of the rubber waste crushing equipment under each type of rubber waste, which can improve the crushing efficiency and also avoid the excessive wear of the tearing device or cutting roller knife.

[0055] Specifically, a logic control unit is added to the controller. After receiving the crushing data output by the sensor, the crushing data is transmitted to the cloud through the FPGA (Field Programmable Gate Array) chip. The cloud automatically adjusts the crushing operation sequence of the tearing machine and the cutting roller according to the feedback of the crushing data and the analysis results of the intelligent control algorithm. At the same time, a mobile slide or a mobile guide rail is installed inside the rubber waste crushing equipment, allowing the tearing machine and the cutting roller to move to the corresponding working position along the mobile slide or the mobile guide rail, thereby adjusting the working sequence of the two types of crushing equipment relative to the rubber waste.

[0056] The sensor outputs the obtained tearing pressure curve, tearing displacement curve and cutting pressure curve to the controller, such as Figure 1 As shown, the controller performs vector direction analysis on any rubber waste sample according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure; obtains the representative value ascending sequence of the tearing pressure curve and the displacement value update sequence of the tearing displacement curve, performs vector direction analysis on the representative value ascending sequence and the displacement value update sequence, and determines the first tearing difficulty factor in combination with the degree of the rising trend of the tearing pressure;

[0057] Performing vector direction analysis on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment; determining the second tearing difficulty factor according to the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment and the degree of fluctuation of the cutting pressure curve;

[0058] In combination with the first tearing difficulty factor and the second tearing difficulty factor, a crushing sequence adjustment index of each rubber waste sample is determined; based on the crushing sequence adjustment index, it is determined whether to adjust the crushing sequence of the rubber waste crushing equipment under each type of rubber waste.

[0059] The following is a detailed explanation of each of the above steps:

[0060] S1, in the process of crushing several types of rubber waste by the rubber waste crushing equipment, the tearing pressure curve, the tearing displacement curve and the cutting pressure curve of the cutting roller corresponding to several rubber waste samples of the same type are obtained in real time.

[0061] In this embodiment, in order to analyze the physical properties, mechanical properties and behavioral characteristics of rubber materials under different conditions, determine the crushing order of each type of rubber waste in the rubber waste crushing equipment, and use corresponding sensor equipment to collect crushing data of the rubber waste crushing equipment under the crushing working state. The crushing data includes the tearing pressure curve, tearing displacement curve and cutting pressure curve of the tearer corresponding to several rubber waste samples of each type.

[0062] Among them, different types of rubber waste can be waste tires, rubber pipes, rubber blocks and rubber pads, etc. The number of each type of rubber waste samples can be set to 50, and multiple rubber waste samples of the same type are selected as sample data. The implementer can set the number of rubber waste samples and the number of types of rubber waste according to the actual situation without specific limitation.

[0063] It should be noted that for the tearing pressure curve, during the tearing process of the tearer, the displacement sensor may measure the relative displacement between the tearer and the rubber waste. Under the premise of clarifying the pressure applied by the tearer, analyzing the relative displacement between the two can indicate the difficulty of tearing the rubber waste. The larger the relative displacement, the smaller the tearing difficulty. For the cutting pressure curve, only the cutting pressure during the actual cutting operation is collected, that is, the pressure curve corresponding to the cutting roller when cutting the rubber waste.

[0064] S2, for any rubber waste sample, perform vector direction analysis according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure; obtain the representative value ascending sequence of the tearing pressure curve and the displacement value update sequence of the tearing displacement curve, perform vector direction analysis on the representative value ascending sequence and the displacement value update sequence, and determine the first tearing difficulty factor in combination with the degree of the rising trend of the tearing pressure.

[0065] First of all, it should be noted that the first tearing difficulty factor is quantified by the tearing pressure of the rubber waste when it is processed in the tearer. The first tearing difficulty factor can be used to characterize the physical properties of the rubber waste relative to the tearer. The larger the first tearing difficulty factor is, the greater the possibility of adjusting the crushing order of the crushing equipment under the type of rubber waste to cut first and then crush.

[0066] In this embodiment, the waste data processing process of each rubber waste sample is consistent. In order to facilitate understanding of the solution, any rubber waste sample is taken as an example to determine the subsequent crushing sequence adjustment index.

[0067] The above step S2 can be Figure 2 The steps shown achieve:

[0068] S21, performing vector direction analysis according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure.

[0069] It should be noted that, by analyzing the long-term change trend of the tearing pressure curve corresponding to a rubber waste sample, if the tearing pressure curve shows a continuous upward trend, it means that the rubber waste is gradually becoming more difficult to tear, and the tearer in the current state is difficult to achieve a good crushing effect. It is beneficial to adjust the crushing order to cutting first and then crushing, which may bring better crushing effect.

[0070] It should be further explained that the reasons for adjusting to cutting before crushing may include: when the waste material is large in size and difficult to be effectively grasped or punctured by the tearer, first cutting it into smaller pieces with a cutting roller can improve the efficiency of subsequent tearing; for materials with higher hardness or more difficult to tear, the cutting roller can pre-cut them into thinner or smaller sheets to reduce the material's tearing strength, making it easier for the tearer to tear; if the rubber waste contains large impurities or hard lumps, first cutting and separating them with a cutting roller can prevent the tearer from getting stuck or damaged.

[0071] The above step S21 can be implemented by the following steps:

[0072] In the first step, the tearing pressure curve is converted into discrete data points in a two-dimensional coordinate system, and the discrete data points are input into a PCA (Principal Component Analysis) model to obtain several two-dimensional vectors, and then the eigenvalues ​​of each two-dimensional vector are obtained.

[0073] First, the tearing pressure curve is converted into discrete data points in a two-dimensional coordinate system, which usually means discretizing continuous data within a specific interval, that is, extracting the coordinates of each point on the tearing pressure curve for further analysis or processing. Among them, the implementation process of converting the curve into discrete data points is a prior art and is not within the scope of protection of the present invention, and will not be elaborated here.

[0074] Secondly, in order to analyze the rising trend characteristics of the tearing pressure curve, it is necessary to input the transformed discrete data points into the PCA model to obtain the two-dimensional vectors corresponding to the tearing pressure curve, and then determine the eigenvalues ​​of each two-dimensional vector. Among them, the implementation process of the PCA model is prior art and is not within the scope of protection of the present invention, and will not be elaborated here.

[0075] For the two-dimensional vector and its eigenvalue, the two-dimensional vector obtained by the PCA model represents the projection of all discrete data points to the corresponding direction. The eigenvalue of the two-dimensional vector represents the projection length to the corresponding direction. The larger the projection length, the wider the distribution range of the discrete data points in the corresponding direction. The direction with a larger projection length is closer to 90 degrees in the first quadrant, indicating that the upward trend characteristics of the tearing pressure curve are more obvious.

[0076] In the second step, the two-dimensional vector corresponding to the maximum eigenvalue is used as the target vector, the ratio of the ordinate to the abscissa in the target vector is determined, and the arc tangent angle value of the ratio is used as the direction angle value of the target vector.

[0077] First, the larger the eigenvalue, the more the two-dimensional vector corresponding to the eigenvalue can represent the overall trend, so the maximum eigenvalue is selected from all the eigenvalues, and the two-dimensional vector corresponding to the maximum eigenvalue is used as the target vector.

[0078] Secondly, the directional feature is quantified based on the target vector, specifically: the arctangent angle value of the ratio of the ordinate to the abscissa in the target vector is used as the directional angle value. It is worth noting that this embodiment does not consider the special case where the abscissa of the target vector is zero.

[0079] In another example, the starting point of the target vector is set as the coordinate origin to form a ray located in a two-dimensional coordinate system, and the clockwise angle between the horizontal coordinate in the positive direction and the ray is used as the direction angle value.

[0080] In the third step, if the direction angle value is within the first preset angle range, the ratio of the direction angle value to 90 degrees is used as the degree of the rising trend of the tearing pressure; otherwise, the degree of the rising trend of the tearing pressure is assigned as the first parameter.

[0081] In this embodiment, the closer the direction angle value is to 90 degrees, the greater the degree of the tearing pressure rising trend, so the ratio of the direction angle value to 90 degrees can be used as the degree of the rising trend, and the degree of the rising trend usually involves an assessment of the intensity, persistence and speed of the trend. The first preset angle range can be 0 to 90, and the first parameter can be set to 0.01.

[0082] S22, obtaining an ascending sequence of representative values ​​of the tearing pressure curve and an updated sequence of displacement values ​​of the tearing displacement curve.

[0083] It should be noted that the tearers are symmetrically designed and are controlled by the driver to move closer or farther away from each other. During the process of the tearers moving away from each other, the rubber waste is punctured and pulled, and it has a certain tearing cycle. Therefore, combined with the pressure change of the tearers corresponding to the tearing cycle, it can be analyzed whether the current crushing sequence needs to be adjusted.

[0084] Specifically, combined with the displacement data of the tearer, if the displacement of the pressure increase during the tearer's moving away process is small, it means that the rubber waste is difficult to tear, which leads to low tearing efficiency. At this time, performing a cutting operation first can improve the tearing efficiency.

[0085] First, we need to obtain the analysis object of the tearing difficulty factor, which is the ascending sequence of representative values ​​and the updated sequence of displacement values. This can be achieved by the following steps:

[0086] The first step is to convert the tearing pressure curve into the frequency domain space, and determine the inverse of the frequency corresponding to the maximum amplitude in the frequency domain space as the tearing period; use the tearing period to evenly divide the tearing pressure curve to obtain several tearing pressure curve segments.

[0087] In this embodiment, in order to determine the tearing cycle, the time domain data is converted into frequency domain data, and each tearing cycle has a corresponding tearing pressure curve segment.

[0088] The second step is to determine the maximum pressure value in each tearing pressure curve segment, take the maximum pressure value as the pressure representative value of the corresponding tearing pressure curve segment, and form all the pressure representative values ​​into a representative value sequence.

[0089] In this embodiment, each tearing pressure curve segment is formed by a periodic motion, and the maximum pressure value in the tearing pressure curve segment can be used as the tearing pressure condition of the entire tearing cycle. In order to facilitate the subsequent analysis of the relationship between the tearing pressure and relative displacement of different periodic motions, the maximum pressure value is used as the representative pressure value, which is conducive to reducing the amount of data analysis and improving calculation efficiency.

[0090] The third step is to sort the data in the representative value sequence in ascending order to obtain an ascending representative value sequence; the order change process between the representative value sequence and the ascending representative value sequence is recorded as an order value exchange method.

[0091] The fourth step is to determine the displacement value of the tearing displacement curve with the same collection time according to the collection time of each pressure data in the representative value sequence, and to form all the displacement values ​​into a displacement value sequence.

[0092] In this embodiment, the larger the displacement value is, the greater the degree of tearing is and the better the tearing effect is. Each pressure representative value has a corresponding displacement value.

[0093] The fifth step is to update the displacement value sequence according to the order value exchange method to obtain the displacement value update sequence.

[0094] Specifically, the elements in the displacement value sequence are swapped according to the same order value swapping method to obtain a displacement value update sequence.

[0095] It should be noted that since the displacement under different tearing pressures is analyzed, the order distribution of the displacement value and the pressure value corresponding to the tearer needs to be kept the same. If the displacement value increases with the increase of the pressure value, it means that the consistency of the change relationship between the two is good, indicating that the current tearing difficulty is small and there is no need to adjust the crushing order of the crushing equipment.

[0096] S23, performing vector direction analysis on the representative value ascending sequence and the displacement value update sequence, and determining a first tearing difficulty factor in combination with the degree of the rising trend of the tearing pressure.

[0097] The above step S23 can be implemented by the following steps:

[0098] The first step is to determine the direction angle value of the target vector corresponding to the ascending sequence of representative values, recorded as the first angle value; determine the direction angle value of the target vector corresponding to the displacement value update sequence, recorded as the second angle value.

[0099] First, the ascending sequence of representative values ​​is converted into discrete data points in a two-dimensional coordinate system, and all discrete data points are input into the PCA model to obtain several two-dimensional vectors, and then the eigenvalues ​​of each two-dimensional vector are obtained; the two-dimensional vector corresponding to the maximum eigenvalue is used as the target vector, the ratio of the ordinate to the abscissa in the target vector is determined, and the arc tangent angle value of the ratio is used as the first angle value.

[0100] Secondly, the displacement value update sequence is converted into discrete data points in a two-dimensional coordinate system, and all discrete data points are input into the PCA model to obtain several two-dimensional vectors, and then the eigenvalues ​​of each two-dimensional vector are obtained; the two-dimensional vector corresponding to the maximum eigenvalue is used as the target vector, the ratio of the ordinate to the abscissa in the target vector is determined, and the inverse tangent angle value of the ratio is used as the second angle value.

[0101] In the second step, a difference between the first angle value and the second angle value is calculated, and then a ratio of the difference value to 90 degrees is determined.

[0102] In this embodiment, the absolute value of the difference between the first angle value and the second angle value is taken as the difference value. The closer the difference value is to 90 degrees, the greater the pressure increases but the displacement decreases during the tearing process, and the greater the tearing difficulty.

[0103] The third step is to determine the first tearing difficulty factor by combining the ratio with the degree of the rising trend of the tearing pressure.

[0104] In this embodiment, the product of the ratio and the degree of the rising trend of the tearing pressure is used as the first tearing difficulty factor, and the value range of the first tearing difficulty factor is between 0 and 1. The larger the first tearing difficulty factor is, the higher the tearing difficulty of the rubber waste is, and the greater the possibility of adjusting the crushing sequence to cutting first and then tearing is.

[0105] So far, this embodiment obtains the first tearing difficulty factor generated by quantifying the tearing characteristic data of the tearing machine.

[0106] S3, performing vector direction analysis on the front curve segment and the rear curve segment in the cutting pressure curve to obtain the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment; determining the second tearing difficulty factor according to the downward trend degree of the front curve segment, the upward trend degree of the rear curve segment and the fluctuation degree of the cutting pressure curve.

[0107] First of all, it should be noted that the second tearing difficulty factor can be quantified through the trend change characteristics and fluctuation characteristics of the cutting pressure of the current cutting roller during the cutting process. The second tearing difficulty factor can characterize the cutting effect of the cutting roller. The higher the cutting effect, the higher the tearing difficulty, and the greater the possibility that the predicted crushing order is cutting first and then tearing.

[0108] The above step S3 can be implemented by the following steps:

[0109] In the first step, vector direction analysis is performed on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment.

[0110] It should be noted that if the cutting pressure first decreases and then increases, it means that a new cutting surface is produced on the rubber waste after tearing, that is, the tearing effect of the tearing operation is better. At this time, the tearing operation is performed with the tearing machine first, and then the cutting roller is used for cutting operation, which can effectively maintain the crushing effect of the rubber waste.

[0111] Firstly, the cutting pressure curve is evenly divided using the tearing cycle corresponding to the tearing pressure curve to obtain cutting pressure curve segments of several cutting cycles.

[0112] In this embodiment, the cutting cycle and the tearing cycle present a one-to-one correspondence, that is, the rubber waste objects processed in the cutting cycle and the tearing cycle with the same sequence number are the same.

[0113] Secondly, in order to analyze whether the cutting pressure shows a trend of first decreasing and then increasing, the minimum pressure value in the cutting pressure curve is selected, and the cutting pressure curve is divided into a front curve segment and a rear curve segment using the minimum pressure value.

[0114] Then, the direction angle values ​​of the target vectors corresponding to the front curve segment and the rear curve segment are determined. The calculation process of the direction angle value can be determined by referring to the first step to the second step in step S21. The calculation method of the direction angle value is the same and will not be repeated here. Among them, the front curve segment and the rear curve segment have their corresponding direction angle values.

[0115] Finally, it is determined whether the direction angle value of the target vector corresponding to each front curve segment and the back curve segment meets the preset conditions, including:

[0116] In the first sub-step, if the direction angle value of the target vector corresponding to the previous curve segment is within a second preset angle range, the ratio of the direction angle value of the target vector corresponding to the previous curve segment to 360 degrees is used as the degree of the downward trend; otherwise, the degree of the downward trend is assigned to the first parameter.

[0117] In the second sub-step, if the direction angle value of the target vector corresponding to the rear curve segment is within the first preset angle range, the ratio of the direction angle value of the target vector corresponding to the rear curve segment to 90 degrees is used as the degree of the upward trend; otherwise, the degree of the upward trend is assigned to the first parameter.

[0118] The second preset angle range is greater than the first preset angle range, and the second preset angle range can be set to 270 degrees to 360 degrees.

[0119] In the second step, the second tearing difficulty factor is determined according to the downward trend of the front curve segment, the upward trend of the rear curve segment, and the fluctuation of the cutting pressure curve.

[0120] Determining the second tear difficulty factor may be accomplished by the following steps:

[0121] The first sub-step is to calculate the average values ​​of the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment corresponding to each cutting cycle, and use the inverse proportional value of the mean of all the average values ​​as the first cutting effect indicator.

[0122] Specifically, each cutting cycle has its corresponding downward trend degree and upward trend degree. First, the average values ​​of the downward trend degree and the upward trend degree corresponding to a single cutting cycle are calculated as the trend degree average value; then the average value of the trend degree average values ​​of all cutting cycles is calculated as the degree of excellence of the tearing effect; and the difference between 1 and the degree of excellence of the tearing effect is used as the first cutting effect indicator.

[0123] It should be noted that when a certain cutting cycle shows a pressure change trend of first decreasing and then increasing, it means that new cross-sections appear in the rubber waste of the current cutting cycle during the tearing process, and the tearing effect is better; and when the tearing effect is better, the crushing effect of the cutting operation cannot be shown, so all the inverse proportional values ​​representing this situation are needed as the first cutting effect indicator.

[0124] The second sub-step is to calculate the variance corresponding to all the pressure data in the cutting pressure curve, and use the variance as the fluctuation degree of the cutting pressure curve; and normalize the fluctuation degree to obtain the second cutting effect index.

[0125] It should be noted that when cutting elastic rubber waste, the fluctuation degree of cutting pressure can reflect the resistance and uniformity encountered during the cutting process. When the fluctuation degree of cutting pressure is small, it means that the tearing effect is good, and the current order of tearing first and then cutting is better, and there is no need to adjust the order; when the fluctuation degree of cutting pressure is large, it means that the crushing effect in the tearing stage is poor, which may be caused by uneven or large density and hardness of the material. It needs to be adjusted to cutting first and then tearing.

[0126] Then, the first cutting effect index and the second cutting effect index are combined to obtain a second tearing difficulty factor.

[0127] As an example, the calculation formula of the second tearing difficulty factor may be:

[0128] ; In the formula, y represents the second tearing difficulty factor, Indicates the downward trend of the previous curve segment corresponding to the nth cutting cycle, It indicates the rising trend of the back curve segment corresponding to the nth cutting cycle, N indicates the number of cutting cycles corresponding to the cutting pressure curve, represents the first cutting effect index, norm represents the linear normalization function, f represents the fluctuation degree of the cutting pressure curve, Indicates the second cutting effect index.

[0129] In the calculation formula of the cutting priority factor, the larger the first cutting effect index is, the less the cutting pressure of each cutting cycle conforms to the trend of first decreasing and then increasing, the poorer the tearing effect, and the better the cutting effect of the cutting roller on the newly generated tearing section, the greater the possibility of adjusting the crushing order to cutting first and then tearing in the future, and the effect of cutting first is high, that is, the first cutting effect index is large; the larger the second cutting effect index is, the greater the degree of fluctuation of the cutting pressure is, at this time the density and hardness distribution of the rubber waste are more inconsistent, and it is difficult to perform the tearing operation. At this time, performing the cutting operation first can improve the crushing efficiency and crushing effect, and the effect of cutting first is high, that is, the second cutting effect index is large; the first cutting effect index and the second cutting effect index are both positively correlated with the cutting priority factor. When the first cutting effect index and the second cutting effect index are larger, it means that the tearing difficulty shown by the cutting roller is greater, the crushing effect of cutting first is higher, and the second tearing difficulty factor is larger.

[0130] So far, this embodiment obtains the second tearing difficulty factor generated by quantifying the cutting characteristic data of the cutting roller knife.

[0131] S4, combining the first tearing difficulty factor and the second tearing difficulty factor, determining a crushing sequence adjustment index for each rubber waste sample; and judging whether to adjust the crushing sequence of the rubber waste crushing equipment for each type of rubber waste according to the crushing sequence adjustment index.

[0132] First of all, it should be explained that the first tearing difficulty factor and the second tearing difficulty factor are both indicators for quantifying the crushing state of rubber waste. After obtaining each indicator, the indicators involving different aspects are integrated together to obtain an evaluation value that can evaluate whether the rubber waste should be cut first. Subsequently, the evaluation value is combined to determine whether to adjust the crushing order of the rubber waste crushing equipment under each type of rubber waste.

[0133] Compared with the existing rubber waste crushing equipment with a fixed crushing order, this step can well combine the crushing states of different types of rubber waste and adapt a highly efficient crushing order for the crushing equipment of each type, which is conducive to improving the crushing efficiency when processing different types of rubber waste, thereby avoiding unnecessary damage to the crushing tools.

[0134] The above step S4 can be implemented by the following steps:

[0135] S41, determining a crushing sequence adjustment index for each rubber waste sample by combining the first tearing difficulty factor and the second tearing difficulty factor.

[0136] Specifically, the product of the first tearing difficulty factor and the second tearing difficulty factor corresponding to each rubber waste sample of the same type is calculated, and then the product of the first tearing difficulty factor and the second tearing difficulty factor is normalized using a linear normalization function to obtain the crushing order adjustment index of each rubber waste sample.

[0137] Of course, implementers can also combine multiple different tearing difficulty factors, namely the first tearing difficulty factor and the second tearing difficulty factor, through other calculation methods, but it is necessary to ensure that the value range of the fragmentation order adjustment index finally calculated is between 0 and 1, so as to facilitate subsequent comparison with the adjustment threshold.

[0138] S42, judging whether to adjust the crushing sequence of the rubber waste crushing equipment for each type of rubber waste according to the crushing sequence adjustment index.

[0139] Specifically, for any type of rubber waste, an adjustment threshold is set, and the number of rubber waste samples whose crushing order adjustment index is greater than the adjustment threshold is counted; if the number of rubber waste samples of this type of rubber waste is greater than a preset number, the crushing order of the rubber waste crushing equipment under this type of rubber waste is adjusted.

[0140] Among them, the adjusted crushing order is cutting first and then tearing, the adjustment threshold can take an empirical value of 0.6, and the preset number can be set to 25. The implementer can set the adjustment threshold and the preset number according to the actual situation without specific limitation.

[0141] As an example, the crushing sequence is adjusted to cutting by a cutting roller and then tearing by a tearing machine, specifically:

[0142] (1) Moving the tearer: Using a slide or guide system, move the tearer from its original position to a new position, which is usually behind the cutting roller.

[0143] (2) Moving the cutting roller: Move the cutting roller to its original position before the tearer, making it the first contact point in the rubber waste crushing process.

[0144] (3) Reconnect the power and control: Reconnect the power and control lines of the tearer and cutting roller at the new location.

[0145] (4) Adjust the control system: If the equipment uses an automated control system, update the control program to adapt to the new working sequence, which may involve reprogramming the logic controller or other automated components.

[0146] (5) Make mechanical adjustments: Make sure the tearer and cutting roller are properly aligned in the new position and can move smoothly along the slide or guide rail.

[0147] The rubber waste crushing equipment provided by the present invention adaptively adjusts the sequence of cutting operation and tearing operation relative to the rubber waste based on understanding and analyzing the physical properties, mechanical properties and behavior of rubber materials under different conditions, which helps to design and optimize waste processing equipment, thereby improving the efficiency and accuracy of waste processing and extending the service life and stability of the equipment.

[0148] A rubber waste crushing equipment embodiment 2:

[0149] This embodiment provides a rubber waste crushing device, including a memory and a processor, wherein the processor is used to process instructions stored in the memory to implement the following control process:

[0150] In the process of the rubber waste crushing equipment crushing several types of rubber waste, the tearing pressure curve, the tearing displacement curve and the cutting pressure curve of the cutting roller corresponding to several rubber waste samples of the same type are obtained in real time;

[0151] For any rubber waste sample, a vector direction analysis is performed according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure; a representative value ascending sequence of the tearing pressure curve and a displacement value update sequence of the tearing displacement curve are obtained, a vector direction analysis is performed on the representative value ascending sequence and the displacement value update sequence, and a first tearing difficulty factor is determined in combination with the degree of the rising trend of the tearing pressure;

[0152] Performing vector direction analysis on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment; determining the second tearing difficulty factor according to the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment and the degree of fluctuation of the cutting pressure curve;

[0153] In combination with the first tearing difficulty factor and the second tearing difficulty factor, a crushing sequence adjustment index of each rubber waste sample is determined; based on the crushing sequence adjustment index, it is determined whether to adjust the crushing sequence of the rubber waste crushing equipment under each type of rubber waste.

[0154] Therefore, the rubber waste crushing device provided in this embodiment is essentially a processor device, which is implemented by an internal data processing process. Since the data processing process has been described in detail in the above-mentioned embodiment 1 of the rubber waste crushing device, it will not be repeated here.

[0155] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A rubber waste crushing device, characterized in that: The system comprises a memory and a processor, wherein the processor is used to process instructions stored in the memory to implement the following control process: In the process of the rubber waste crushing equipment crushing several types of rubber waste, the tearing pressure curve, the tearing displacement curve and the cutting pressure curve of the cutting roller corresponding to several rubber waste samples of the same type are obtained in real time; For any rubber waste sample, a vector direction analysis is performed according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure; a representative value ascending sequence of the tearing pressure curve and a displacement value update sequence of the tearing displacement curve are obtained, a vector direction analysis is performed on the representative value ascending sequence and the displacement value update sequence, and a first tearing difficulty factor is determined in combination with the degree of the rising trend of the tearing pressure; Performing vector direction analysis on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment; determining the second tearing difficulty factor according to the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment and the degree of fluctuation of the cutting pressure curve; Determine a crushing sequence adjustment index for each rubber waste sample by combining the first tearing difficulty factor and the second tearing difficulty factor; determine whether to adjust the crushing sequence of the rubber waste crushing equipment for each type of rubber waste according to the crushing sequence adjustment index; The step of performing vector direction analysis according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure includes: Determine the direction angle value of the target vector corresponding to the tearing pressure curve; If the direction angle value is within the first preset angle range, the ratio of the direction angle value to 90 degrees is used as the degree of the rising trend of the tearing pressure; otherwise, the degree of the rising trend of the tearing pressure is assigned as the first parameter; The step of determining the direction angle value of the target vector corresponding to the tearing pressure curve includes: The tearing pressure curve is converted into discrete data points in a two-dimensional coordinate system, and the discrete data points are input into a PCA model to obtain a plurality of two-dimensional vectors, and then the eigenvalue of each two-dimensional vector is obtained; The two-dimensional vector corresponding to the maximum eigenvalue is used as the target vector, the ratio of the ordinate to the abscissa in the target vector is determined, and the arc tangent angle value of the ratio is used as the direction angle value of the target vector; The step of obtaining the ascending sequence of representative values ​​of the tearing pressure curve and the updating sequence of displacement values ​​of the tearing displacement curve comprises: The tearing pressure curve is converted into a frequency domain space, and the inverse of the frequency corresponding to the maximum amplitude in the frequency domain space is determined as the tearing period; the tearing pressure curve is evenly divided using the tearing period to obtain a plurality of tearing pressure curve segments; Determine the maximum pressure value in each tearing pressure curve segment, use the maximum pressure value as the pressure representative value of the corresponding tearing pressure curve segment, and form all the pressure representative values ​​into a representative value sequence; sorting the data in the representative value sequence in ascending order to obtain a representative value ascending sequence; recording the order change process between the representative value sequence and the representative value ascending sequence as an order value exchange method; According to the acquisition time of each pressure data in the representative value sequence, the displacement value of the same acquisition time in the tearing displacement curve is determined, and all the displacement values ​​are combined into a displacement value sequence; According to the sequence value swapping method, the displacement value sequence is updated to obtain a displacement value update sequence; The vector direction analysis is performed on the representative value ascending sequence and the displacement value update sequence, and the first tearing difficulty factor is determined in combination with the rising trend of the tearing pressure, including: Determine the direction angle value of the target vector corresponding to the representative value ascending sequence, recorded as a first angle value; determine the direction angle value of the target vector corresponding to the displacement value update sequence, recorded as a second angle value; Calculating a difference between the first angle value and the second angle value, and then determining a ratio of the difference to 90 degrees; Determine a first tearing difficulty factor by combining the ratio with the degree of the rising trend of the tearing pressure; The vector direction analysis is performed on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment, including: The cutting pressure curve is evenly divided by using the tearing cycle to obtain cutting pressure curve segments of a plurality of cutting cycles; Selecting the minimum pressure value in the cutting pressure curve segment, and using the minimum pressure value to divide the cutting pressure curve segment into a front curve segment and a rear curve segment; determining the direction angle value of the target vector corresponding to the front curve segment and the rear curve segment; If the direction angle value of the target vector corresponding to the previous curve segment is within the second preset angle range, the ratio of the direction angle value of the target vector corresponding to the previous curve segment to 360 degrees is used as the degree of the downward trend; otherwise, the degree of the downward trend is assigned to the first parameter; If the direction angle value of the target vector corresponding to the rear curve segment is within the first preset angle range, the ratio of the direction angle value of the target vector corresponding to the rear curve segment to 90 degrees is used as the degree of the upward trend; otherwise, the degree of the upward trend is assigned to the first parameter; The second tearing difficulty factor is determined according to the downward trend of the front curve segment, the upward trend of the rear curve segment, and the fluctuation of the cutting pressure curve, including: Calculate the average value of the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment corresponding to each cutting cycle, and use the inverse proportional value of the mean of all the average values ​​as the first cutting effect indicator; Calculating the variance corresponding to all the pressure data in the cutting pressure curve, and using the variance as the fluctuation degree of the cutting pressure curve; normalizing the fluctuation degree to obtain a second cutting effect index; Combining the first cutting effect index and the second cutting effect index, obtaining a second tearing difficulty factor; The step of judging whether to adjust the crushing sequence of the rubber waste crushing equipment for each type of rubber waste according to the crushing sequence adjustment index includes: For any type of rubber waste, an adjustment threshold is set, and the number of rubber waste samples whose crushing order adjustment index is greater than the adjustment threshold is counted; if the number of rubber waste samples of this type of rubber waste is greater than a preset number, the crushing order of the rubber waste crushing equipment under this type of rubber waste is adjusted.

2. A rubber waste crushing device, comprising a crushing mechanism, wherein the crushing mechanism comprises a tearing device and a cutting roller, characterized in that: The rubber waste crushing equipment further comprises a crushing operation sequence control module, which is installed on the crushing mechanism. The crushing operation sequence control module comprises a sensor and a controller, wherein the sensor signal is connected to the controller, and the sensor is used to obtain in real time the tearing pressure curve, tearing displacement curve and cutting pressure curve of the tearing device corresponding to several rubber waste samples of the same type during the process of the rubber waste crushing equipment crushing several types of rubber waste, and the controller performs vector direction analysis according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure for any rubber waste sample; Obtaining a representative value ascending sequence of the tearing pressure curve and a displacement value update sequence of the tearing displacement curve, performing vector direction analysis on the representative value ascending sequence and the displacement value update sequence, and determining a first tearing difficulty factor in combination with the degree of the rising trend of the tearing pressure; Performing vector direction analysis on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment; determining the second tearing difficulty factor according to the degree of the downward trend of the front curve segment and the degree of the upward trend of the rear curve segment and the degree of fluctuation of the cutting pressure curve; Determine a crushing sequence adjustment index for each rubber waste sample by combining the first tearing difficulty factor and the second tearing difficulty factor; determine whether to adjust the crushing sequence of the rubber waste crushing equipment for each type of rubber waste according to the crushing sequence adjustment index; The step of performing vector direction analysis according to the tearing pressure curve to determine the degree of the rising trend of the tearing pressure includes: Determine the direction angle value of the target vector corresponding to the tearing pressure curve; If the direction angle value is within the first preset angle range, the ratio of the direction angle value to 90 degrees is used as the degree of the rising trend of the tearing pressure; otherwise, the degree of the rising trend of the tearing pressure is assigned as the first parameter; The step of determining the direction angle value of the target vector corresponding to the tearing pressure curve includes: The tearing pressure curve is converted into discrete data points in a two-dimensional coordinate system, and the discrete data points are input into a PCA model to obtain a plurality of two-dimensional vectors, and then the eigenvalue of each two-dimensional vector is obtained; The two-dimensional vector corresponding to the maximum eigenvalue is used as the target vector, the ratio of the ordinate to the abscissa in the target vector is determined, and the arc tangent angle value of the ratio is used as the direction angle value of the target vector; The step of obtaining the ascending sequence of representative values ​​of the tearing pressure curve and the displacement value updating sequence of the tearing displacement curve includes: The tearing pressure curve is converted into a frequency domain space, and the inverse of the frequency corresponding to the maximum amplitude in the frequency domain space is determined as the tearing period; the tearing pressure curve is evenly divided using the tearing period to obtain a plurality of tearing pressure curve segments; Determine the maximum pressure value in each tearing pressure curve segment, use the maximum pressure value as the pressure representative value of the corresponding tearing pressure curve segment, and form all the pressure representative values ​​into a representative value sequence; sorting the data in the representative value sequence in ascending order to obtain a representative value ascending sequence; recording the order change process between the representative value sequence and the representative value ascending sequence as an order value exchange method; According to the acquisition time of each pressure data in the representative value sequence, the displacement value of the same acquisition time in the tearing displacement curve is determined, and all the displacement values ​​are combined into a displacement value sequence; According to the sequence value swapping method, the displacement value sequence is updated to obtain a displacement value update sequence; The vector direction analysis is performed on the representative value ascending sequence and the displacement value update sequence, and the first tearing difficulty factor is determined in combination with the rising trend of the tearing pressure, including: Determine the direction angle value of the target vector corresponding to the representative value ascending sequence, recorded as a first angle value; determine the direction angle value of the target vector corresponding to the displacement value update sequence, recorded as a second angle value; Calculating a difference between the first angle value and the second angle value, and then determining a ratio of the difference to 90 degrees; Determine a first tearing difficulty factor by combining the ratio with the degree of the rising trend of the tearing pressure; The vector direction analysis is performed on the front curve segment and the rear curve segment of each cutting cycle in the cutting pressure curve to obtain the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment, including: The cutting pressure curve is evenly divided by using the tearing cycle to obtain cutting pressure curve segments of a plurality of cutting cycles; Selecting the minimum pressure value in the cutting pressure curve segment, and using the minimum pressure value to divide the cutting pressure curve segment into a front curve segment and a rear curve segment; determining the direction angle value of the target vector corresponding to the front curve segment and the rear curve segment; If the direction angle value of the target vector corresponding to the previous curve segment is within the second preset angle range, the ratio of the direction angle value of the target vector corresponding to the previous curve segment to 360 degrees is used as the degree of the downward trend; otherwise, the degree of the downward trend is assigned to the first parameter; If the direction angle value of the target vector corresponding to the rear curve segment is within the first preset angle range, the ratio of the direction angle value of the target vector corresponding to the rear curve segment to 90 degrees is used as the degree of the upward trend; otherwise, the degree of the upward trend is assigned to the first parameter; The second tearing difficulty factor is determined according to the downward trend of the front curve segment, the upward trend of the rear curve segment, and the fluctuation of the cutting pressure curve, including: Calculate the average value of the downward trend degree of the front curve segment and the upward trend degree of the rear curve segment corresponding to each cutting cycle, and use the inverse proportional value of the mean of all the average values ​​as the first cutting effect indicator; Calculating the variance corresponding to all the pressure data in the cutting pressure curve, and using the variance as the fluctuation degree of the cutting pressure curve; normalizing the fluctuation degree to obtain a second cutting effect index; Combining the first cutting effect index and the second cutting effect index to obtain a second tearing difficulty factor; The step of judging whether to adjust the crushing sequence of the rubber waste crushing equipment for each type of rubber waste according to the crushing sequence adjustment index includes: For any type of rubber waste, an adjustment threshold is set, and the number of rubber waste samples whose crushing order adjustment index is greater than the adjustment threshold is counted; if the number of rubber waste samples of this type of rubber waste is greater than a preset number, the crushing order of the rubber waste crushing equipment under this type of rubber waste is adjusted.

3. A rubber waste crushing equipment according to claim 2, characterized in that: The rubber waste crushing equipment also includes a moving device, along which the tearer and the cutting roller knife move to corresponding working positions, and the moving device is a guide rail or a slide rail.

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