Control method of waste low stretch yarn recycling and crushing treatment equipment

Abstract

The invention relates to the technical field of high polymer material recovery control, in particular to a waste low stretch yarn recovery crushing treatment equipment control method which comprises the following steps: acquiring a waste low stretch yarn feeding direction and a guide plate angle, analyzing yarn body offset and a crossing angle, positioning a contact point, extracting an attaching path, monitoring a sliding rhythm and marking a fragment direction. Pressure change and wing valve response are extracted, airflow gathering is analyzed, temperature difference and tension trend are monitored, tension trend is analyzed, and discharge section action is tracked. According to the method, the feeding direction, the deviation trend and the sliding path of the waste low stretch yarn are monitored, feeding is kept stable, the sliding path monitoring keeps the track coherence, the airflow discharging rhythm is combined to regulate and control the pressure intensity and wing valve response, airflow control is improved, the guide plate temperature difference and tension direction monitoring are combined with the thermal response path, and the cracking trend is described; and the hot shear guide cracking path tracks the action of the discharge section, the slippage continuity, the airflow regulation and control precision and the crushing discharge continuity are maintained, and blockage and fluctuation are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer material recycling control, and in particular to a control method for waste low-elastic yarn recycling and crushing processing equipment. Background Art

[0002] The field of polymer material recycling control technology encompasses physical recycling processes and equipment control methods for waste polymer materials. Core technologies in this area involve controlling material pulverization particle size, improving sorting purity, and optimizing melt regranulation process parameters. The primary treatment targets include polymer wastes such as polyester fiber, polyethylene, and polypropylene. The systematic technical process includes material crushing in the pretreatment stage, impurity removal in the sorting stage, and material modification in the regeneration stage. Key control parameters include pulverization tool speed, sorting airflow velocity, and melt temperature gradient distribution. Associated equipment includes twin-shaft shredders, eddy current separators, and twin-screw extruders.

[0003] The control method for recycling and pulverizing waste low-elastic yarn refers to a method for controlling the processing of waste polyester fiber materials during the pulverization process. This technical aspect covers the matching of pulverization tool speed with material hardness, maintaining dynamic pressure balance in the pulverization chamber, and real-time compensation control for tool wear. This is accomplished by setting a graded speed threshold based on material density, establishing a correspondence table between tool advance and retreat speed and motor load current, and configuring a linear regulation equation between vibration amplitude and feed rate. The technical implementation is based on a mechanical model of polyester fiber breaking strength and cutting speed, a quantitative relationship curve between material bulk density and pulverization efficiency, and a geometric correspondence between tool angle and particle size distribution.

[0004] In the recycling and control process of waste polymer materials, the existing technology fails to dynamically monitor the feed direction and the deviation trend of the filaments, which can easily lead to inaccurate feed guidance, resulting in filament slippage and deviation. In the material slip control, the existing technology lacks real-time tracking of the slip rhythm and path extension direction, and the slip path is prone to discontinuity or deviation, affecting the slip stability. In terms of airflow control, the existing technology mostly adopts a fixed speed mode, which is unable to coordinate and control the slip path and the airflow discharge rhythm, and is prone to slip path blockage. The ability to monitor the temperature difference and tension direction of the guide plate is limited, and the changes in the thermal response path are difficult to track in real time, and the cracking path prediction accuracy is poor. The tracking of the discharge section action performance during the crushing and discharge stage is insufficient, and the closure stability of the crushing and discharge process cannot be guaranteed, resulting in an increased risk of blockage. Due to the inability to achieve dynamic adjustment and path tracking, the existing technology is insufficient in terms of the processing accuracy, stability and continuity of waste low-elasticity wires, and there is much room for improvement. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a control method for waste low-elastic yarn recycling and crushing processing equipment.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a control method for a waste low-elastic yarn recycling and crushing processing device, comprising the following steps:

[0007] S1: Obtain the feed direction of the waste low-elastic yarn and the initial angle of the guide plate, read the yarn deviation trend and analyze the cross angle, locate the first contact point segment, extract the attachment path and diffusion direction, and obtain the feed guide buffer structure combination;

[0008] S2: Based on the attachment trajectory in the feed guide buffer structure combination, monitor the sliding rhythm of the filament in the trough channel, mark the segment distribution and extension direction, screen the continuous attachment feature trajectory set, and obtain the trough sliding operation path segment;

[0009] S3: Based on the sliding path and airflow discharge rhythm of the trough sliding operation path section, the pressure change sequence and the wing valve shaft angle response are extracted, the relationship between the airflow concentration area and the action point is analyzed, and the feedback signal is pushed to the control port to obtain the wing valve exhaust pressure linkage opening and closing instruction;

[0010] S4: Based on the cavity pressure disturbance caused by the paddle valve exhaust pressure linkage opening and closing instructions, the guide plate temperature difference data and tension direction trend are extracted, and the tension trend trajectory is analyzed in combination with the thermal response path change to obtain the thermal shear-guided cracking path configuration;

[0011] S5: Based on the configuration of the hot shear-guided cracking path, the connection status of the pressure relief channel and the trajectory is summarized, and the continuous action of the discharge section is tracked to obtain the closed state of the waste low-elastic wire crushing and discharge process.

[0012] As a further solution of the present invention, the feed guide buffer structure combination includes the guide plate guide path morphology, contact point attachment distribution characteristics, and multi-point diffusion area orientation; the trough body sliding operation path section includes a continuous segment of the sliding trajectory, a structural surface attachment direction sequence, and a transition sequence characteristic between trajectories; the wing valve pressure relief linkage opening and closing instructions include a pressure amplification response point, a pressure relief direction matching path, and a control signal feedback parameter; the hot shear guide cracking path configuration includes a thermal response sequence number, a tension direction extension trajectory, and a gap staggered guide number; the closed state of the waste low-elastic wire crushing and discharge process includes a guide groove connection segment combination, a pressure relief guide path matching number, and a complete discharge trajectory connection sequence.

[0013] As a further solution of the present invention, the specific steps of S1 are:

[0014] S101: Obtain the feeding direction of the waste low-elastic yarn and the position of the guide plate, read the initial setting value of the guide plate angle and the yarn feeding offset direction, analyze the intersection angle between the guide plate angle and the yarn running trajectory, identify the offset direction of the guide trend entering the trough entrance, and obtain the imported offset angle matching data;

[0015] S102: Based on the combination of the guide plate angle and the offset direction in the imported offset angle matching data, the position of the first contact point of the filament in the slot structure is extracted, the intersection section of the guide section to which the contact point belongs and the guide plate path is extracted, and the contact line segments that form continuous guidance in the attachment path are screened to obtain initial attachment contact path information;

[0016] S103: Extracting the contact point distribution direction and coverage trajectory based on the initial attachment contact path information, extracting the diffusion trend and arrangement order of the multi-point attachment connection, integrating the attachment trajectory segments and incorporating them into the guide plate guide section structure path, and obtaining the feed guide buffer structure combination.

[0017] As a further solution of the present invention, the specific steps of S2 are:

[0018] S201: Based on the attachment path data in the feed guide buffer structure combination, the sliding behavior of the filament in the trough channel is monitored, the distribution boundaries of the sliding segment and the dragging segment are marked, and the structural contact state of each trajectory is recorded to obtain a sliding segment marking result set;

[0019] S202: Based on the slip segment annotation result set, calculate the angle change value between the slip segment and the adjacent drag segment, extract the numbered segments with continuous and similar change amplitudes in the turning point angle sequence, record the corresponding distribution relationship between the angle direction and the structural contact density, and obtain the turning change characteristics of the slip structure;

[0020] S203: Based on the numbered paths with similar angle change amplitudes in the steering change characteristics of the sliding structure, the arrangement order and contact direction of the trajectory segments are sorted, the path combinations with consistent attachment directions are extracted, and the sliding segments with continuous contact morphology are connected to obtain the trough sliding operation path segments.

[0021] As a further solution of the present invention, the calculation formula for the angle change between the slip segment and the adjacent drag segment is specifically:

[0022]

[0023] in, Represents the angle change between the uv-numbered segment of the slip segment and the adjacent drag segment, Represents the angle value of the sampling point corresponding to the uv segment of the slip segment, Represents the angle value of the sampling point corresponding to the uv numbered segment of the adjacent drag segment, Represents the angle difference weight of the sampling point in the uv segment, Represents the spatial distance between the slip segment and the drag segment of the sampling point of the uv segment.

[0024] As a further solution of the present invention, the specific steps of S3 are:

[0025] S301: Based on the exhaust guide direction information in the trough sliding operation path section, read the data sequence of the main chamber pressure change, extract the time segment number and ventilation response segment corresponding to the pressure change, record the correspondence between the segment on the exhaust path and the pressure change segment, and obtain the pressure rhythm segment correspondence matrix;

[0026] S302: Based on the pressure slip rhythm corresponding matrix, retrieve the flap valve shaft angle data and extract the angle response range within the air pressure range, calculate the response overlap ratio between the shaft angle change range and the pressure rise range, analyze the coupling trend between the angle displacement rate and the ventilation duct position, and obtain the shaft linkage matching value;

[0027] S303: Based on the data segments in the shaft linkage matching values ​​that are consistent with the action direction and have intersecting path numbers, extract the corresponding points of the pressure amplification signal, locate the spatial boundary relationship between the points and the current pressure relief direction, match the linkage requirements of the action position and the pressure relief direction, push the opening and closing signals to the control execution end, and obtain the wing valve pressure relief linkage opening and closing instructions.

[0028] As a further solution of the present invention, the calculation formula for the response overlap ratio between the rotation shaft angle variation interval and the pressure rise interval is specifically:

[0029]

[0030] Among them, R c Represents the response overlap ratio between the rotation shaft angle variation range and the pressure rise range, represents the average value of the shaft angle sampling sequence, represents the average value of the pressure sampling sequence, θ ref Represents the reference value of the rotation axis angle at the corresponding time point during the pressure rise phase, P ref Represents the pressure reference value at a representative moment in the pressure rise interval, θ i represents the i-th angle measurement value, P i Represents the i-th pressure measurement value.

[0031] As a further solution of the present invention, the specific steps of S4 are:

[0032] S401: Invoking the cavity pressure disturbance process triggered by the paddle valve pressure relief linkage opening and closing command, extracting the temperature response data of the upper and lower layers of the hot zone guide plate, recording the sequence of continuously rising measurement points in the temperature change curve in chronological order, screening the response segments covering the thermal shear region, and obtaining the continuous temperature rise section of the hot zone guide plate;

[0033] S402: Based on the continuous temperature rise section of the guide plate in the hot zone, the movement path of the wire in the area is tracked, the coordinate point sequence of the tension direction extending along the time axis is extracted, the angle value between the tension direction and the guide plate gap direction is calculated, and the path numbers with nearly aligned angles are selected to obtain a tension direction angle aligned number set;

[0034] S403: Aligning the numbered paths in the numbered set based on the tension direction angle, extracting the overlapping parts by comparing with the guide plate thermal response trajectory, recording the fragment sequence extending along the gap direction, and obtaining the thermal shear-guided cleavage path configuration.

[0035] As a further solution of the present invention, the angle between the tension direction and the guide plate gap direction is calculated as follows:

[0036]

[0037] Among them, α zj represents the angle between the tension direction of the zth filament and the gap direction of the jth guide plate, x z represents the average value of the coordinate point column of the tension direction of the zth filament, h j represents the average value of the coordinate point column of the guide plate gap direction in the jth section, f z represents the square root of the difference between all coordinate values ​​in the tension direction of the zth filament and the maximum value, e j represents the square root of the difference between all coordinate values ​​in the j-th segment guide plate gap direction coordinate point column and the minimum value, p z represents the maximum value of the coordinate point sequence of the tension direction of the zth filament, q j represents the minimum value of the coordinate point sequence of the guide plate gap direction in the jth section, a z represents the value obtained by dividing the sum of the squares of the coordinate values ​​in the coordinate point array in the tension direction of the zth wire by the length of the point array, b j Represents the value obtained by dividing the sum of the squares of the coordinate points in the j-th section of the guide plate gap direction by the length of the point column.

[0038] As a further solution of the present invention, the specific steps of S5 are:

[0039] S501: Recalling the cracking point position and release path structure in the thermal shear-guided cracking path configuration, collecting data on the tank guide groove, the pressure relief channel, and the movement path of the fractured pieces, identifying the connection between the three-segment structure sections and the boundary connection, and obtaining the discharge channel structure connection information;

[0040] S502: Based on the discharge channel structure connection information, the guide direction and negative pressure action direction of the terminal pressure relief area are read, the movement direction and boundary adhesion trend of the debris in the guide section are marked, and the fragment release trajectory number consistent with the guide groove is extracted to obtain the pressure relief direction guide path identifier set;

[0041] S503: Call the path number in the pressure discharge direction guide path identification set, track the movement trajectory of the corresponding cracking fragments discharged along the guide groove, identify the connection structure between the guide section, the desorption section and the discharge outlet, record the complete path segment combination relationship, and obtain the closed state of the waste low-elastic wire crushing and discharge process.

[0042] Compared with the prior art, the advantages and positive effects of the present invention are:

[0043] In the present invention, the feeding direction, deviation trend and slip path of the waste low-elastic yarn are monitored to maintain feeding stability, the slip path monitoring maintains trajectory continuity, the pressure and wing valve response are regulated in combination with the airflow discharge rhythm to improve airflow control, the guide plate temperature difference and tension direction monitoring are combined with the thermal response path to describe the cracking direction, the hot shear-guided cracking path tracks the discharge section action, maintains slip continuity, airflow control accuracy and crushing discharge continuity, and reduces blockage and fluctuation. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the main steps of the present invention. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0047] See also Figure 1 The present invention provides a technical solution: a control method for a waste low-elastic yarn recycling and crushing processing equipment, comprising the following steps:

[0048] S1: Obtain the feed direction of the waste low-elastic yarn and the position of the guide plate, read the initial setting value of the guide plate angle and the yarn feed offset direction, analyze the guidance trend based on the intersection angle between the guide plate angle and the yarn running trajectory, locate the corresponding section of the yarn's first contact point within the trough structure, select the attachment path where the point is within the guide plate's guide trajectory area, record the multi-point contact distribution and diffusion area direction, and obtain the feed guide buffer structure combination;

[0049] S2: Based on the attachment path data of the feed guide buffer structure combination, the continuous sliding behavior of the wire in the trough channel is monitored, the structural distribution alternation relationship between the drag segment and the slip segment is marked, and the complete segments close to the structural surface in the attachment path are extracted. The extension direction of each segment in the trough boundary is classified, and the continuous passage segments are identified in the order of slip stability. The path segments with continuous attachment characteristics in the converging trajectory form a slip channel, and the trough sliding operation path segment is obtained;

[0050] S3: Based on the relationship between the exhaust guide direction and the filament running rhythm in the trough sliding operation path section, the data sequence of the main chamber pressure change is read, the angle of the wing valve shaft is retrieved and compared with the change trend in the current air pressure range, the airflow gathering range on the chamber wall is identified, and the response relationship between the shaft movement area and the exhaust pressure direction is extracted. The pressure amplification signal is matched with the opening and closing action points of the wing valve, and the control feedback is pushed to the actuator to obtain the wing valve exhaust pressure linkage opening and closing instructions;

[0051] S4: Based on the cavity pressure disturbance process triggered by the wing valve pressure linkage opening and closing instructions, the temperature response difference sequence between the upper and lower layers of the hot zone guide plate is extracted, the tension direction extension change of the filament when it stays in the hot plate area is tracked, and the action segment where the tension direction is consistent with the direction of the guide plate staggered gap is located. The temperature difference distribution and tension trend data in the area are collected, and the corresponding trajectory of the guide plate thermal response path and the cracking trend is jointly identified to obtain the hot shear-guided cracking path configuration;

[0052] S5: Based on the cracking point position and release path structure in the hot shear guided cracking path configuration, the channel continuity status between the trough guide groove, the pressure relief channel and the movement path of the fractured pieces is summarized, the guiding direction and the negative pressure response amplitude applied by the terminal pressure relief area to the cracking piece are read, the trajectory connection status of the cracked fragments after being discharged along the terminal guide groove is recorded, and the continuous operation performance of the discharge trajectory between the guiding section, the desorption section and the discharge outlet is tracked to obtain the closed state of the waste low-elastic wire crushing and discharge process.

[0053] The feed guide buffer structure combination includes the guide plate guide path morphology, contact point attachment distribution characteristics, and multi-point diffusion area orientation; the trough sliding operation path section includes the sliding trajectory continuous segments, the structural surface attachment direction sequence, and the transition sequence characteristics between trajectories; the wing valve pressure relief linkage opening and closing instructions include the pressure amplification response point, the pressure relief direction matching path, and the control signal feedback parameters; the hot shear guide cracking path configuration includes the thermal response sequence number, the tension direction extension trajectory, and the gap staggered guide number; the closed state of the waste low-elastic wire crushing and discharge process includes the guide groove connection segment combination, the pressure relief guide path matching number, and the complete discharge trajectory connection sequence.

[0054] The specific steps of S1 are:

[0055] S101: Obtain the feeding direction of the waste low-elastic yarn and the position of the guide plate, read the initial setting value of the guide plate angle and the yarn feeding offset direction, analyze the intersection angle between the guide plate angle and the yarn running trajectory, identify the offset direction of the guide trend entering the trough entrance, and obtain the imported offset angle matching data;

[0056] The set initial angle value is read from the angle sensor on the guide plate. In actual applications, for example, the guide plate is initially set to 40°, and the boundary reference line pointed to by the guide plate direction is recorded. At the same time, the first contact point of the low-elastic wire at the front end of the feed and the guide area is observed, and the sliding direction is defined as the running path relative to the guide plate direction. During the introduction into the trough, by tracking the front end position change of the wire at two consecutive time points, it is measured that its feeding direction deviates 20 mm from the left edge of the trough. At the same time, the position at the end of the guide plate fails to intersect with the wire path, indicating that the two deviate significantly. By taking the projection difference of the intersection position of the guide plate extension line segment and the wire path extension line segment in the feed port plane, it is determined that the two form an offset angle at the entrance. Assuming that the wire path forms an inward deflection trend and the guide plate deflection is stable, the offset direction is left at this time, and the offset direction is set based on the left side of the trough centerline. is negative and the right side is positive, then the mark offset direction is negative offset in the current situation. According to the offset level grouping rules set in the control program, the offset angle range is divided into three levels, of which 0-5 degrees is collimated type, 6-15 degrees is light offset type, and 16 degrees and above is strong offset type. If the currently measured offset path starts to deviate to the left 18 mm outside the front boundary of the guide plate, and the deviation between the end of the guide plate and the center line of the wire is 25 mm, then this state is classified as a strong offset type. On this basis, the angle direction actually pointed by the guide plate is matched with the projection direction of the wire sliding path to obtain the direction matching result between the two, and the difference between the matching relationship and the center axis direction of the slot is calculated. Finally, the interactive information between the guide plate angle, the wire offset margin, the direction matching relationship and the reference direction of the slot center is recorded to obtain the imported offset angle matching data.

[0057] S102: Based on the combination of the guide plate angle and the offset direction in the imported offset angle matching data, the position of the first contact point of the filament in the slot structure is extracted, the intersection section of the guide section to which the contact point belongs and the guide plate path is extracted, and the contact line segments that form continuous guidance in the attachment path are selected to obtain initial attachment contact path information;

[0058] At the implementation site, the entry guiding behavior of the guide plate at different angles can be extracted one by one through the matched angle pairs. The guide plate angle can be fed back in real time through the angle sensor, and the offset direction comes from the position coordinate data before the wire enters the channel. The two can be combined to obtain the positioning index of the intersection area. First, in the continuous feeding process of the wire entering the trough, the first contact trajectory point is extracted. This point can be detected by installing a pressure contact strip on the edge of the trough. Once the wire touches the contact point, the first contact position record is formed. Then, the segment number of the position of the contact point in the trough path is obtained and matched with the corresponding guide segment on the guide path of the guide plate to determine whether the contact point falls within the coverage range of the guide path. If the contact point falls on the end edge of the guide segment or deviates from the extension direction of the guide plate by more than a certain angle value, it can be excluded. The angle value here can be set to deviate from the reference angle within the range of ±10°. If it is within the range, the segment information is retained as a valid guide contact segment, and then read The filament's trajectory backward from this point is taken, and three or more consecutive contact points are collected in the internal track of the trough to determine whether these points are consistent with the extension direction of the guide plate. If adjacent contact points in the trajectory segment form a linear advancement trend and form a small angle approaching relationship with the guide plate's guidance direction, the trajectory segment is considered to have a continuous guidance feature. Combined with actual experiments, it can be seen that when a guide plate angle is 5° and an offset angle is 17°, the first contact point of the filament occurs 12 mm to the right of the center point of the trough entrance. Subsequently, it is recorded that the filament forms a contact every 5 mm in the guide segment for five consecutive times. This situation meets the continuous guidance contact path feature standard. All such contact line segments are further extracted, and non-continuous segments with contact point distances less than 2 mm or direction differences greater than 15° are eliminated. The contact trajectory line segments output after screening constitute the valid contact path for the next step of import analysis. The path structure sequence is formed according to the segment number and contact sequence number, and the initial attachment contact path information is obtained.

[0059] S103: Extracting the contact point distribution direction and coverage trajectory based on the initial attachment contact path information, extracting the diffusion trend and arrangement order of the multi-point attachment connection, integrating the attachment trajectory segments and incorporating them into the guide plate guide section structure path, and obtaining the feed guide buffer structure combination;

[0060] First, the distribution coordinates of each contact point on the attachment path can be recorded through the image acquisition device, and the extension trend of the point column in the longitudinal and lateral directions can be clarified according to the spatial sorting relationship of the contact point numbers. If it is found that most of the contact points in 20 consecutive waste low-elastic silk sample belts are concentrated in the area of ​​15 mm to 35 mm on the right side of the guide plate, and are densely distributed in the longitudinal range, then the section can be determined as the main coverage trajectory direction area. Then, combined with the marked contact point trajectory numbers, the connection order of multiple attachment points in each trajectory is extracted, and the contact segments are divided according to the increasing relationship of the numbers of adjacent points. If the difference between the two point numbers is 1 and the spacing does not exceed 50 mm, it is recorded as a continuous segment. All connected segments form a diffusion trend line in two-dimensional space. If the diffusion direction basically remains in the range of 45° to 60°, it is determined to have a unidirectional concentrated diffusion trend, and then its path is judged based on the density of intersection points between the diffusion lines. Convergence condition: If three or more paths are cross-connected in the same section, they can be grouped and arranged according to the path convergence area. After the final aggregation, all path segments are integrated into an attached trajectory segment set in numbered order. The overlapping length between the guiding boundary line of the guide channel and the attached trajectory direction is combined to determine whether the path can be included in the guidance range. If the overlapping length is greater than 70% of the total length of the attached segment, the segment is marked as being included in the guidance channel direction. All remaining trajectory segments are then screened according to this rule, and the path numbers that meet the conditions are summarized and arranged, and their direction and the number of connection points between segments within the guidance path range are extracted. If there are more than 5 connection points between consecutive segments and the difference in the path direction is no more than 15°, they are delineated as the same guidance trajectory group. Finally, these trajectory groups are uniformly included in the guidance path identification interval of the guide channel as the basis for matching path segment integration processing to obtain the feed guide buffer structure combination.

[0061] The specific steps of S2 are:

[0062] S201: Based on the attachment path data in the feed guide buffer structure combination, the sliding behavior of the filament in the trough channel is monitored, the distribution boundaries of the sliding segment and the dragging segment are marked, and the structural contact state of each trajectory is recorded to obtain a sliding segment marking result set;

[0063] First, determine the corresponding track number and starting and ending range of the attachment path in the slot channel. The track acquisition device can be used to locate the contact point between each scrap low-elastic wire and the slot wall when it is attached to form a two-dimensional contact coordinate list. After numbering and sorting the points in the list, the starting and ending points of the attachment segment of each track are recorded. For this sequence, the continuous sliding behavior of each path is further marked in chronological order to determine whether there is a sliding interruption point in each track. If the duration of the sliding interruption exceeds 0.5 seconds and the corresponding coordinate remains stationary, it is marked as a drag segment, otherwise it is a sliding segment. Each track is segmented in this way, and then the sliding state of each segment is recorded. By comparing the changing trend of the number of contact points between different segments, it is determined whether the segment belongs to a stable sliding path. For example, in 10 tracks, the number of contact points in the continuous segment at the bottom of the slot is stably maintained at 9 to 11 in 7 tracks. The segment between them can be considered as a continuous slip segment and aligned with the boundaries of other trajectory segments to form a preliminary slip segment identification area. Subsequently, the distribution boundaries of the slip segments and the drag segments are marked in sequence according to the trajectory numbers, and the start and end numbers and coordinate positions of the slip segments in all paths are summarized. Combined with the feedback information of the attached pressure sensor of each path, the contact force state of the channel surface in which the segment is located is recorded. If the contact force change in the continuous slip segment is less than 5%, it is classified as a stable contact state path. In the actual production process, the slip contact threshold range can be set between 0.2N and 0.3N to determine whether the segment meets the slip identification standard. If it meets the standard, it is recorded as a valid slip path. After marking and classifying all trajectory segments according to the above standards, the slip segment number, position and contact state identifier that meet the identification standard are finally extracted to obtain the slip segment marking result set.

[0064] S202: Based on the sliding segment annotation result set, the angle change value between the sliding segment and the adjacent dragging segment is calculated, and the numbered segments with continuous and similar change amplitudes in the turning point angle sequence are extracted. The corresponding distribution relationship between the angle direction and the structural contact density is recorded to obtain the turning change characteristics of the sliding structure;

[0065] The calculation formula of the angle change between the slip segment and the adjacent drag segment is as follows:

[0066]

[0067] in, Represents the angle change between the uv-numbered segment of the slip segment and the adjacent drag segment, Represents the angle value of the sampling point corresponding to the uv segment of the slip segment, Represents the angle value of the sampling point corresponding to the uv numbered segment of the adjacent drag segment, Represents the angle difference weight of the sampling point in the uv segment, Represents the spatial distance between the slip segment and the drag segment of the sampling point of the uv segment;

[0068] Assumptions:

[0069]

[0070] The total number of sampling segments s is 6, and the sampling comparison differences in the 6 segment numbers are 5.34 degrees, 6.12 degrees, 4.98 degrees, 5.76 degrees, 5.11 degrees, and 5.83 degrees;

[0071]

[0072] Substitute the above values ​​into the formula for step-by-step calculations:

[0073] The molecular part is:

[0074]

[0075] The denominator is:

[0076]

[0077] The final calculated angle change value is

[0078]

[0079] The results show that the degree of angular change between the slip segment uv and the adjacent drag segment is 1.27. This value is a dimensionless number that represents the standardized angular offset amplitude. After comparison with the rest of the numbered segments in the data set, it is used to evaluate the similarity trend of the change amplitude in the turning point angle sequence. This value is used to screen the turning numbered segments and input them into the subsequent angular trend and contact density mapping analysis process.

[0080] S203: Based on the numbered paths with similar angle change amplitudes in the steering change characteristics of the sliding structure, the arrangement order and contact direction of the trajectory segments are sorted, and path combinations with consistent attachment directions are extracted. The sliding segments with continuous contact morphology are connected to obtain the trough sliding operation path segments;

[0081] First, extract the previously marked path numbers and check the corresponding angle turning points, read the angle change trend of its continuous slip segments in the order of numbers, and screen out the path number segments whose angle change amplitude is kept within 5 degrees by observing the deflection angle change between three consecutive adjacent contact points in each path. Record their turning directions and turning frequencies, and then uniformly number these number segments and group them. During the grouping process, if the coordinate spacing between the front and rear connection points between the number segments does not exceed 20 mm, they are regarded as connectable segments and are arranged into continuous slip groups in the order of connection. Arrange the contact direction of each segment in the group, and determine whether the slip direction is consistent based on the data recorded by the attached sensor device. If the slip pressure direction recorded by the tension direction sensor on the slip path is stable If the distance error between more than 5 consecutive points does not exceed 3 mm, and the direction offset is less than 10 degrees, it is classified as a continuous contact slip segment, and its path sequence is extracted and numbered and summarized. Finally, all path segments that meet the sliding continuity, direction consistency and angle change stability are combined together as the same group of sliding paths. After summarizing and combining, their boundary numbers and direction trends are recorded, and the combined path segments are sorted in the connection order and output to obtain the slot sliding operation path segment.

[0082] The specific steps of S3 are:

[0083] S301: Based on the exhaust guide direction information in the trough sliding operation path section, the data sequence of the main chamber pressure change is read, the time segment number and ventilation response segment corresponding to the pressure change are extracted, and the correspondence between the segments on the exhaust path and the pressure change segments is recorded to obtain the pressure rhythm segment correspondence matrix;

[0084] During operation, the ventilation direction number corresponding to each sliding path can be recorded by the wind flow guide sensor set on the side wall of the trough body. At the same time, the main cavity pressure sensor records the pressure change data in units of 100 milliseconds to obtain a time-ordered pressure value sequence. Combined with the data collected by the ventilation direction sensor, the numbers of different sections on the sliding path are compared and associated with each other. For example, in the sliding path of waste low-elastic wire, if the wind direction identification angle is detected to be always stable in the direction of the slot outlet in the section with path number P21 to P30, and the main cavity pressure data is in a continuous rising state within the corresponding time period, this section will be marked as a pressure response enhancement section and assigned the ventilation response number F05. Compared with the periods in other sections where there is no obvious change or decrease in pressure value, they are marked separately. For F00 or F01, all ventilation section numbers are classified and sorted, and matched with the three states of continuous rise, fall or insignificant fluctuation in the main chamber pressure data. In a standard operation sample, a total of 120 path segments are recorded, of which 42 paths coincide with the pressure rise segment and are marked as R1 state, 39 coincide with the pressure drop segment and are marked as R2 state, and the remaining 39 do not match the significant pressure change and are marked as R3 state. A double-index correspondence table is constructed for the three types of states and the corresponding path numbers, and the position segment, start and end number and wind direction number in the sliding channel are recorded respectively. The start number, end number and ventilation state number are extracted as row label fields, and the pressure change stage is used as the column label field to obtain the pressure rhythm segment correspondence matrix.

[0085] S302: Based on the pressure slip rhythm corresponding matrix, retrieve the flap valve shaft angle data and extract the angle response range within the air pressure range. Calculate the response overlap ratio between the shaft angle variation range and the pressure rise range. Analyze the coupling trend between the angle displacement rate and the ventilation duct position to obtain the shaft linkage matching value.

[0086] The calculation formula for the response overlap ratio between the rotation shaft angle variation range and the pressure rise range is as follows:

[0087]

[0088] Among them, R c Represents the response overlap ratio between the rotation shaft angle variation range and the pressure rise range, represents the average value of the shaft angle sampling sequence, represents the average value of the pressure sampling sequence, θ ref Represents the reference value of the rotation axis angle at the corresponding time point during the pressure rise phase, P ref Represents the pressure reference value at a representative moment in the pressure rise interval, θ i represents the i-th angle measurement value, P i Represents the i-th pressure measurement value.

[0089] Assumptions:

[0090] The angle measurements collected during the equipment operation cycle are: 32.5, 35.0, 34.2, 36.1, 33.6, 32.8, 34.5, 36.7, 35.4, 33.9 (unit: degrees). The average of the ten angle values ​​is:

[0091]

[0092] The ten groups of pressure sampling values ​​are: 88.1, 90.3, 91.5, 89.6, 87.9, 92.4, 93.0, 89.2, 90.7, 88.6. The calculated average value is:

[0093]

[0094] θ ref =33.8 degrees, P ref =93.2 kPa;

[0095] Substitute the numerator into the formula:

[0096]

[0097] The sum of the squares of the ten sets of shaft angles and air pressures are:

[0098] Assume that the sum of the squares of the ten sets of rotation angles is 11897.01 and the sum of the squares of the air pressure is 82282.37;

[0099] Add the two squares and take the square root:

[0100]

[0101] Substitute the formula to calculate the complete expression

[0102]

[0103] The results show that the degree of coordinated response between the average response of the shaft angle and the corresponding point in the pressure rise stage is 13.91%. This value is used to represent the degree of coupling of the wing valve rotation angle in the pressure growth range, and further serves as the basis for the shaft linkage matching value.

[0104] S303: Based on the data segments in the shaft linkage matching values ​​that have consistent action directions and intersecting path numbers, the corresponding points of the pressure amplification signal are extracted, the spatial boundary relationship between the points and the current pressure relief direction is located, the action position is matched with the linkage requirements of the pressure relief direction, and the opening and closing signals are pushed to the control execution end to obtain the paddle valve pressure relief linkage opening and closing instructions;

[0105] First, extract all the segment numbers that are synchronously linked with the shaft response state from the previous pressure rhythm segment matrix, then screen the marked segments that match the shaft movement direction, extract their path numbers and cross-compare the sequence numbers of the pressure increase data segments in the same time period to determine whether there is an intersection. For example, if the sliding path numbers P17-P25 and the pressure increase numbers R12-R19 have three overlapping points P19, P20, and P21, then record this overlapping segment as the linkage control trigger area, then extract the maximum growth point in the pressure sequence, mark it as the peak point of the increase signal, and then find the ventilation response path number of this point in the corresponding time sequence, and combine it with the angle calibration value returned by the pressure discharge direction sensor to identify it. The wind direction spatial area position of this point is determined, and the angle between the pressure peak point and the current guide groove outlet direction is determined through three-axis coordinate positioning to determine whether it is consistent with the spatial position. In actual scenarios, when the current opening angle of a certain rotating shaft is 60 degrees, the guide groove pressure relief direction is recorded as 65 degrees, and the allowable error range is ±10 degrees, then this point falls into the pressure relief linkage response area, and further matches the number of the action position with the response requirements specified by the pressure relief direction to determine whether it has the conditions for pushing the opening and closing action signal. If it is determined that the conditions are met, the number information is written into the execution end signal channel through the action control bus, and finally the action encoder generates the signal content and pushes it to the corresponding port of the opening and closing device to obtain the wing valve pressure relief linkage opening and closing instruction.

[0106] The specific steps of S4 are:

[0107] S401: Invoke the cavity pressure disturbance process triggered by the paddle valve pressure relief linkage opening and closing command, extract the temperature response data of the upper and lower layers of the hot zone guide plate, record the sequence of continuously rising measurement points in the temperature change curve in chronological order, select the response segment covering the thermal shear area, and obtain the continuous section of the hot zone guide plate temperature rise;

[0108] At the implementation site, data can be collected by setting temperature sensing patches on the upper and lower surfaces of the hot zone guide plate, recording the measuring point number, installation location and sampling time, and arranging all sensing data into a continuous curve in chronological order. After obtaining the temperature change information at every 0.1 second interval within the 30-second time window, the data points corresponding to the upper and lower measuring points are read in sequence, and the readings of each pair of upper and lower measuring points are compared in parallel. The continuously rising temperature segments are sorted and identified. In a typical scenario, if the upper measuring points T1, T2, and T3 of the guide plate rise by 2.4°C, 2.8°C, and 3.1°C respectively within 10 seconds, and the lower measuring points B1, B2, and B3 also rise by 1.9°C, 2.2°C, and 2.6°C synchronously, and the temperature difference between the two is always kept within 2°C, then the time period can be identified as the upper and lower thermal response stable section. On this basis, the upper and lower layers are divided according to the spatial position corresponding to the measuring point number. The horizontal and vertical distribution ranges of the hot zone are marked as valid response areas for the distribution areas of measuring points with an overlap of more than 80%. In multiple test batches, if continuous temperature rise occurs in zone T (hot zone on the right side of the guide plate) and synchronous response occurs in zone B (hot zone below the guide plate) in 5 consecutive batches of tests, then the area is located as the thermal shear reaction coverage area. Then, all measuring points with continuous temperature rise in the area are further classified, and the starting rise time and rise duration of each measuring point in the number group are recorded. If the continuous rise duration of any measuring point exceeds 3 seconds and the difference in start time with at least 3 other measuring points is less than 0.5 seconds, it is marked as a synchronous thermal rise response segment. All measuring point numbers that meet the conditions are included in the thermal shear segment response segment and partitioned and grouped on the guide plate surface according to spatial position. Finally, the spatial coverage interval coordinates corresponding to the segment number and its rising duration sequence information are output to obtain the continuous segment of the hot zone guide plate temperature rise.

[0109] S402: Based on the continuous temperature rise sections of the guide plates in the hot zone, the movement path of the wire within the area is tracked, the coordinate point sequence of the tension direction extending along the time axis is extracted, the angle value between the tension direction and the guide plate gap direction is calculated, and the path numbers with nearly aligned angles are selected to obtain a tension direction angle aligned number set;

[0110] The calculation of the angle between the tension direction and the guide plate gap direction is as follows:

[0111]

[0112] Among them, α zj represents the angle between the tension direction of the zth filament and the gap direction of the jth guide plate, x z represents the average value of the coordinate point column of the tension direction of the zth filament, h j represents the average value of the coordinate point column of the guide plate gap direction in the jth section, f z represents the square root of the difference between all coordinate values ​​in the tension direction of the zth filament and the maximum value, e jrepresents the square root of the difference between all coordinate values ​​in the j-th segment guide plate gap direction coordinate point column and the minimum value, p z represents the maximum value of the coordinate point sequence of the tension direction of the zth filament, q j represents the minimum value of the coordinate point sequence of the guide plate gap direction in the jth section, a z represents the value obtained by dividing the sum of the squares of the coordinate values ​​in the coordinate point array in the tension direction of the zth wire by the length of the point array, b j Represents the value obtained by dividing the sum of the squares of the coordinate points in the j-th section of the guide plate gap direction by the length of the point column;

[0113] Assumption: x z =12.5mm,h j =11.8mm, f z =2.3mm, e j =1.9mm, p z =14.2mm,q j =10.5mm, a z =158.3mm 2 , b j =142.7mm 2 ;

[0114] Calculate the molecular part:

[0115] x z ·h j =12.5×11.8=147.5mm 2 ;

[0116]

[0117] |p z -q j |=|14.2-10.5|=3.7mm;

[0118] Numerator sum: 147.5 + 2.983 - 3.7 = 146.783 mm 2 ;

[0119] Calculate the denominator:

[0120] |f z -e j |=|2.3-1.9|=0.4mm;

[0121] Total of the denominators: 0.4 + 22594.41 = 22594.81 mm;

[0122] Calculate the angle α zj :

[0123]

[0124] The result shows that the angle between the zth wire and the jth guide plate gap direction is about 1.17 degrees. This angle value is used to judge the degree of alignment between the tension direction and the guide plate gap direction, and further screen the path numbers with angles close to alignment to obtain the tension direction angle alignment number set.

[0125] S403: Aligning the numbered paths in the numbered set based on the tension direction angle, extracting the overlapping parts by comparing with the guide plate thermal response trajectory, recording the fragment sequence extending along the gap direction, and obtaining the thermal shear-guided cleavage path configuration;

[0126] First, select all the number groups with the same direction marks in the path number list, read the corresponding wire tension extension direction, and compare them with the extracted thermal response trajectory data to determine whether these path numbers have spatial overlap with the measuring point positions of the guide plate thermal response area. In actual operation, if the point distance between the coordinate positions corresponding to the path numbers P11, P12, and P13 and the guide plate hot zone numbers T3, T4, and T5 is less than 3 mm, and the direction vector angle is less than 10 degrees, it is marked as an overlappable path. For this group of overlapping paths, its continuous contact segments are extracted, and the sequence of path segments extending along the guide plate guide groove gap direction is recorded. The intersection of the tension direction and the edge of the hot plate in these segments is located. If there are at least three groups If there are overlapping points in the path along the edge direction, and the corresponding tension directions of these points point in the same direction, then these path segments can be regarded as forming continuous hot shear trend segments. Further, according to the overlap between the starting number and ending number of each path segment and the thermal response segment, the path segments with a thermal coverage rate of more than 75% are screened out, and their path extension direction, tension pressure change along the line and spatial coordinate sequence are sorted out. The qualified paths are spliced ​​into a continuous trend trajectory in the starting order. Then, according to the matching relationship between the position of the trajectory distribution on the hot plate surface and the guide plate slot interval, the numbers of all path segments located in the guide gap interval are extracted and summarized into a hot shear cracking guide sequence. Finally, the sequence is output as the recognition result to obtain the hot shear guided cracking path configuration.

[0127] The specific steps of S5 are:

[0128] S501: Calling the cracking point position and release path structure in the hot shear-guided cracking path configuration, collecting data on the tank guide groove, pressure relief channel, and fracture piece movement path, identifying the connection between the three-segment structure sections and boundaries, and obtaining the discharge channel structure connection information;

[0129] In actual operation, it is first necessary to determine the end coordinates and cracking trigger position corresponding to each cracking path. The end coordinates of the hot shear path can be spatially matched with the starting point of the release slot set in the structure, and the coordinate overlapping area can be extracted and identified whether it falls within the range of the slot guide groove structure. If the horizontal distance between the cracking point and the guide groove entrance is less than 15 mm and is on the same longitudinal channel center line, the path can be identified as docking with the guide groove structure. Then, the extension direction of the trajectory after the cracking point is compared to analyze whether the movement path of the cracking fragments crosses the pressure relief channel area. In practice, the length of the pressure relief channel is generally set to 70 to 100 mm. If the extension length of the cracking trajectory is within this range, the angle relationship formed by its first 20 mm segment and the center line of the guide groove outlet is extracted to determine whether it is on the same channel. In the direction, the coordinate points on the edge of the guide groove, the wall of the pressure relief channel and the movement path of the cracking piece are collected respectively, and the segment numbers of the three sets of coordinates where spatial connection, attachment or intersection occur are recorded, and it is marked whether there is an interruption area between the guide groove, channel and movement trajectory. If the boundary point numbers between the three structures are continuous and the coordinate spacing is less than 5 mm, it can be determined that the three structures have formed a spatial connection relationship. Then, the transition time value between each numbered point is supplemented through the trajectory time series to check whether there is continuity in the time dimension. If the transition time between the end of the guide groove and the pressure relief channel section does not exceed 0.3 seconds, it indicates that the section structure is smoothly connected. Finally, the trajectory numbers, position coordinates and boundary connection status of each section are integrated to summarize them into a complete path docking segment data list to obtain the discharge channel structure connection information.

[0130] S502: Based on the discharge channel structure connection information, the guide direction and negative pressure direction of the terminal pressure relief area are read, the movement direction and boundary adhesion trend of the debris in the guide section are marked, and the fragment release trajectory number consistent with the guide groove direction is extracted to obtain the pressure relief direction guide path identifier set;

[0131] First, it is necessary to collect the wind direction sensor data of the pressure relief outlet section and the coordinate information of the guide identification line on the channel wall, read the guide wind direction change angle and negative pressure attraction point data for 10 consecutive seconds in the pressure relief area, and number the wind direction centerline direction at each time point, and compare it with the channel guide boundary angle sequence. At the same time, combined with the set value of the guide groove outlet direction of the slot body, extract the time period in the wind direction data where the deviation from the guide groove direction is less than 10 degrees as the stable guide section, analyze the debris discharge position trajectories collected in these sections one by one, and combine the trajectory number information obtained by the infrared trajectory capture device to determine whether its initial departure direction is consistent with the guide direction. If the trajectory number is R24, R25, or R26, the deviation between the trajectory starting point angle direction and the guide direction is small. If the angle of the guide rail is less than 5 degrees and the deviation on both sides of the outlet centerline does not exceed 5 mm, it is determined to be a consistent guidance path. The running status of the fragments near the channel wall is tracked according to the trajectory number. Combined with the feedback data of the wall-attached sensing belt, it is recorded whether the fragments run stably along the boundary line during the discharge process. If the output signal of the sensing belt on the continuous path is in contact for more than three segments, the path is marked as a boundary attachment trajectory. The trajectory numbers with consistent directions in these attachment trajectories are screened and summarized, and the intersection processing is performed with the aforementioned wind direction overlapping segments to finally form a set of discharge trajectory numbers that are consistent with the guide groove direction in structure and have a stable attachment trend in movement. This set is sorted and arranged in numerical order as the basis for subsequent identification of the discharge guide of the cracked fragments, and a set of pressure discharge direction guide path identifications is obtained.

[0132] S503: Calling the path number in the pressure discharge direction guide path identifier set, tracking the movement trajectory of the corresponding cracked fragments discharged along the guide groove, identifying the connection structure between the guide section, the desorption section and the discharge outlet, recording the complete path segment combination relationship, and obtaining the closed state of the waste low-elastic wire crushing and discharge process;

[0133] First, read the trajectory data of the cracked fragments corresponding to each number, record the starting movement point of the fragments in the guide groove through the infrared trajectory tracking device, and mark the starting coordinates and angular direction of each numbered path in the guide segment. Then, combine the guide groove boundary data in the channel structure drawing to determine whether the path number is in the guide segment area. Among the sample path numbers R31 to R40, the paths corresponding to R32, R33, and R35 extend inside the guide groove with an angle deviation of less than 8 degrees from the pressure relief guide direction, and are distributed on both sides of the guide groove centerline. They are recorded as valid guide segment paths, and their movement trajectories are further tracked to the desorption segment to identify whether there are obvious jump points or interval segments where the attachment state disappears. For example, the trajectory of the R33 path deviates when it enters the desorption segment at the 8th second, but the offset distance is small. If the distance between the fragments and the edge of the discharge port is less than 3 mm and the boundary is re-attached stably within 0.2 seconds, it is recorded as a connectable path. The path numbers of all successful connections without obvious interruptions in the desorption segment are added to the combined sequence. When it finally extends to the discharge outlet area, the timestamp and position coordinates of the fragments entering the discharge port are recorded by the infrared identifier at the discharge end, and compared with the connection status between the timestamp and the end point of the desorption segment. If there is no interruption signal or reverse jump, it can be determined that the path is continuous between the guidance, desorption and discharge segments. The numbers of each segment are connected and integrated into a complete discharge path segment. The complete trajectory sequence of the starting point, transition point and exit point is recorded in the R33 and R35 paths. Finally, the numbering sequence, path extension direction and boundary contact status are output as index information to obtain the closed state of the waste low-elastic wire crushing and discharge process.

[0134] The above are merely preferred embodiments of the present invention and do not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A control method for waste low-elastic yarn recycling and crushing equipment, characterized in that: The following steps are involved: S1: Obtain the feed direction of the waste low-elastic yarn and the initial angle of the guide plate, read the yarn deviation trend and analyze the cross angle, locate the first contact point segment, extract the attachment path and diffusion direction, and obtain the feed guide buffer structure combination; S2: Based on the attachment trajectory in the feed guide buffer structure combination, monitor the sliding rhythm of the filament in the trough channel, mark the segment distribution and extension direction, screen the continuous attachment feature trajectory set, and obtain the trough sliding operation path segment; S3: Based on the sliding path and airflow discharge rhythm of the trough sliding operation path section, the pressure change sequence and the wing valve shaft angle response are extracted, the relationship between the airflow concentration area and the action point is analyzed, and the feedback signal is pushed to the control port to obtain the wing valve exhaust pressure linkage opening and closing instruction; S4: Based on the cavity pressure disturbance caused by the paddle valve exhaust pressure linkage opening and closing instructions, the guide plate temperature difference data and tension direction trend are extracted, and the tension trend trajectory is analyzed in combination with the thermal response path change to obtain the thermal shear-guided cracking path configuration; S5: Based on the configuration of the hot shear-guided cracking path, the connection status of the pressure relief channel and the trajectory is summarized, and the continuous action of the discharge section is tracked to obtain the closed state of the waste low-elastic wire crushing and discharge process.

2. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 1 is characterized in that: The feed guide buffer structure combination includes the guide plate guide path morphology, contact point attachment distribution characteristics, and multi-point diffusion area orientation; the trough body sliding operation path section includes a continuous segment of the sliding trajectory, a structural surface attachment direction sequence, and a transition sequence characteristic between trajectories; the wing valve pressure relief linkage opening and closing instructions include a pressure amplification response point, a pressure relief direction matching path, and a control signal feedback parameter; the hot shear guide cracking path configuration includes a thermal response sequence number, a tension direction extension trajectory, and a gap staggered guide number; the closed state of the waste low-elastic wire crushing and discharge process includes a guide groove connection segment combination, a pressure relief guide path matching number, and a complete discharge trajectory connection sequence.

3. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 1 is characterized in that: The specific steps of S1 are: S101: Obtain the feeding direction of the waste low-elastic yarn and the position of the guide plate, read the initial setting value of the guide plate angle and the yarn feeding offset direction, analyze the intersection angle between the guide plate angle and the yarn running trajectory, identify the offset direction of the guide trend entering the trough entrance, and obtain the imported offset angle matching data; S102: Based on the combination of the guide plate angle and the offset direction in the imported offset angle matching data, the position of the first contact point of the filament in the slot structure is extracted, the intersection section of the guide section to which the contact point belongs and the guide plate path is extracted, and the contact line segments that form continuous guidance in the attachment path are screened to obtain initial attachment contact path information; S103: Extracting the contact point distribution direction and coverage trajectory based on the initial attachment contact path information, extracting the diffusion trend and arrangement order of the multi-point attachment connection, integrating the attachment trajectory segments and incorporating them into the guide plate guide section structure path, and obtaining the feed guide buffer structure combination.

4. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 1 is characterized in that: The specific steps of S2 are: S201: Based on the attachment path data in the feed guide buffer structure combination, the sliding behavior of the filament in the trough channel is monitored, the distribution boundaries of the sliding segment and the dragging segment are marked, and the structural contact state of each trajectory is recorded to obtain a sliding segment marking result set; S202: Based on the slip segment annotation result set, calculate the angle change value between the slip segment and the adjacent drag segment, extract the numbered segments with continuous and similar change amplitudes in the turning point angle sequence, record the corresponding distribution relationship between the angle direction and the structural contact density, and obtain the turning change characteristics of the slip structure; S203: Based on the numbered paths with similar angle change amplitudes in the steering change characteristics of the sliding structure, the arrangement order and contact direction of the trajectory segments are sorted, the path combinations with consistent attachment directions are extracted, and the sliding segments with continuous contact morphology are connected to obtain the trough sliding operation path segments.

5. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 4 is characterized in that: The calculation formula of the angle change between the slip segment and the adjacent drag segment is specifically: in, Represents the angle change between the uv-numbered segment of the slip segment and the adjacent drag segment, Represents the angle value of the sampling point corresponding to the uv segment of the slip segment, Represents the angle value of the sampling point corresponding to the uv numbered segment of the adjacent drag segment, Represents the angle difference weight of the sampling point in the uv segment, Represents the spatial distance between the slip segment and the drag segment of the sampling point of the uv segment.

6. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 1, characterized in that: The specific steps of S3 are: S301: Based on the exhaust guide direction information in the trough sliding operation path section, read the data sequence of the main chamber pressure change, extract the time segment number and ventilation response segment corresponding to the pressure change, record the correspondence between the segment on the exhaust path and the pressure change segment, and obtain the pressure rhythm segment correspondence matrix; S302: Based on the pressure slip rhythm corresponding matrix, retrieve the flap valve shaft angle data and extract the angle response range within the air pressure range, calculate the response overlap ratio between the shaft angle change range and the pressure rise range, analyze the coupling trend between the angle displacement rate and the ventilation duct position, and obtain the shaft linkage matching value; S303: Based on the data segments in the shaft linkage matching values ​​that are consistent with the action direction and have intersecting path numbers, extract the corresponding points of the pressure amplification signal, locate the spatial boundary relationship between the points and the current pressure relief direction, match the linkage requirements of the action position and the pressure relief direction, push the opening and closing signals to the control execution end, and obtain the wing valve pressure relief linkage opening and closing instructions.

7. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 6, characterized in that: The calculation formula for the response overlap ratio between the rotation shaft angle variation interval and the pressure rise interval is specifically: Among them, R c Represents the response overlap ratio between the rotation shaft angle variation range and the pressure rise range, represents the average value of the shaft angle sampling sequence, represents the average value of the pressure sampling sequence, θ ref Represents the reference value of the rotation axis angle at the corresponding time point during the pressure rise phase, P ref Represents the pressure reference value at a representative moment in the pressure rise interval, θ i represents the i-th angle measurement value, P i Represents the i-th pressure measurement value.

8. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 1, characterized in that: The specific steps of S4 are: S401: Invoking the cavity pressure disturbance process triggered by the paddle valve pressure relief linkage opening and closing command, extracting the temperature response data of the upper and lower layers of the hot zone guide plate, recording the sequence of continuously rising measurement points in the temperature change curve in chronological order, screening the response segments covering the thermal shear region, and obtaining the continuous temperature rise section of the hot zone guide plate; S402: Based on the continuous temperature rise section of the guide plate in the hot zone, the movement path of the wire in the area is tracked, the coordinate point sequence of the tension direction extending along the time axis is extracted, the angle value between the tension direction and the guide plate gap direction is calculated, and the path numbers with nearly aligned angles are selected to obtain a tension direction angle aligned number set; S403: Aligning the numbered paths in the numbered set based on the tension direction angle, extracting the overlapping parts by comparing with the guide plate thermal response trajectory, recording the fragment sequence extending along the gap direction, and obtaining the thermal shear-guided cleavage path configuration.

9. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 8, characterized in that: The angle between the tension direction and the guide plate gap direction is calculated as follows: Among them, α zj represents the angle between the tension direction of the zth filament and the gap direction of the jth guide plate, x z represents the average value of the coordinate point column of the tension direction of the zth filament, h j represents the average value of the coordinate point column of the guide plate gap direction in the jth section, f z represents the square root of the difference between all coordinate values ​​in the tension direction of the zth filament and the maximum value, e j represents the square root of the difference between all coordinate values ​​in the j-th segment guide plate gap direction coordinate point column and the minimum value, p z represents the maximum value of the coordinate point sequence of the tension direction of the zth filament, q j represents the minimum value of the coordinate point sequence of the guide plate gap direction in the jth section, a z represents the value obtained by dividing the sum of the squares of the coordinate values ​​in the coordinate point array in the tension direction of the zth wire by the length of the point array, b j Represents the value obtained by dividing the sum of the squares of the coordinate points in the j-th section of the guide plate gap direction by the length of the point column.

10. The control method for waste low-elastic yarn recycling and crushing equipment according to claim 1, characterized in that: The specific steps of S5 are: S501: Recalling the cracking point position and release path structure in the thermal shear-guided cracking path configuration, collecting data on the tank guide groove, the pressure relief channel, and the movement path of the fractured pieces, identifying the connection between the three-segment structure sections and the boundary connection, and obtaining the discharge channel structure connection information; S502: Based on the discharge channel structure connection information, the guide direction and negative pressure action direction of the terminal pressure relief area are read, the movement direction and boundary adhesion trend of the debris in the guide section are marked, and the fragment release trajectory number consistent with the guide groove is extracted to obtain the pressure relief direction guide path identifier set; S503: Call the path number in the pressure discharge direction guide path identification set, track the movement trajectory of the corresponding cracking fragments discharged along the guide groove, identify the connection structure between the guide section, the desorption section and the discharge outlet, record the complete path segment combination relationship, and obtain the closed state of the waste low-elastic wire crushing and discharge process.

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