CN119085558A - A method for testing positioning performance of a textile thread positioning mechanism - Google Patents
A method for testing positioning performance of a textile thread positioning mechanism Download PDFInfo
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- CN119085558A CN119085558A CN202411558503.0A CN202411558503A CN119085558A CN 119085558 A CN119085558 A CN 119085558A CN 202411558503 A CN202411558503 A CN 202411558503A CN 119085558 A CN119085558 A CN 119085558A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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Abstract
The invention discloses a positioning performance test method of a textile thread positioning mechanism, and relates to the technical field of positioning performance test. The positioning performance test method of the textile thread positioning mechanism comprises the following steps of checking and calibrating, calculating a tension coefficient, calculating a positioning offset coefficient, calculating a positioning performance coefficient, obtaining a positioning performance stability index, and carrying out early warning. According to the invention, the textile line positioning device is checked and calibrated, the tension coefficient is obtained through the tension level and the tension influence data, the positioning offset coefficient is obtained according to the offset influence data, the positioning performance coefficient scatter diagram and the positioning performance stability index are obtained according to the positioning time, the tension influence factor, the tension coefficient and the positioning offset coefficient, and finally the positioning performance is pre-warned according to the obtained data, so that the effect of improving the relevance between the positioning performance test and the textile line tension is achieved, and the problem of low relevance between the positioning performance test and the textile line tension in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of positioning performance test, in particular to a positioning performance test method of a textile thread positioning mechanism.
Background
Along with the development of social economy and the rise of labor cost, the traditional manual operation and semi-automatic production mode cannot meet the production requirements of textile industry, textile enterprises begin to seek automatic production technology to improve production efficiency and reduce cost, a textile line positioning device is widely applied, positioning performance test of the textile line positioning device becomes an important task, positioning performance test of the textile line positioning device has important effect on evaluating positioning precision, stability and safety, normal operation and stability performance of the textile line positioning device in textile production are ensured, production efficiency and product quality are improved, and therefore, research on a positioning performance test method of a textile line positioning mechanism has important significance.
The existing textile line positioning mechanism positioning performance testing method mainly comprises a sensing technology, a control technology, an image processing technology and a communication technology, specifically, by using various sensors such as a photoelectric sensor, a laser sensor and an ultrasonic sensor, the position, the speed and the tension of a textile line can be monitored and measured in real time, so that the textile line can be accurately positioned and stably operated in the production process, the textile line positioning device can be accurately controlled through a control algorithm and a controller such as PID control, fuzzy control and self-adaptive control, the movement track and the speed of the textile line positioning device can be adjusted to meet the production requirements of different textile products, the image information is acquired through the image processing technology such as a camera and the sensor, the image is analyzed and processed through the image processing algorithm, the position, the shape and the characteristics of textiles are identified, and therefore accurate line positioning is achieved, and cooperative control and data sharing of the production process are achieved through the communication technology.
The invention patent bulletin device and the impact point testing method with bulletin number of CN109827854B comprise a ballistics gun, a speed measuring device, a target frame, a pair of vector recording papers arranged in parallel between the speed measuring device and the target frame, a second vector recording paper closely attached to the bullet receiving surface of the target plate, a vector paper parallel to the target surfaces of a trigger screen and a stop screen of the speed measuring device, equipment adjustment, reference bullet shooting, bullet hole coordinate positioning on the first vector paper and the second vector paper, test target plate installation, test bullet shooting, test bullet hole coordinate positioning on the first vector paper and test bullet impact point calculation process on the first vector paper.
A device and a method for detecting the contact cool feeling of the textile, for example, the device and the method are disclosed in the patent publication No. CN116148311B, and comprise the steps of placing the textile in a test chamber, obtaining an image of the textile, determining the type and the interweaving mode of the textile, adopting a structure and action of simulating human limbs according to the type and the interweaving mode of the textile, simulating the surface of the textile, and converting an electric signal obtained by simulating the human limbs into a heat flow signal to obtain the maximum transient heat flow of the textile.
However, in the process of implementing the technical scheme of the embodiment of the application, the application discovers that the above technology has at least the following technical problems:
In the prior art, the positioning performance test method of the traditional textile wire positioning device only considers that the positioning performance test of the textile wire positioning device is carried out under specific textile wire tension, and the problem that the relevance between the positioning performance test and the textile wire tension is low exists.
Disclosure of Invention
The embodiment of the application solves the problem of low relevance between the positioning performance test and the tension of the textile wires in the prior art by providing the positioning performance test method of the textile wire positioning mechanism, and improves the relevance between the positioning performance test and the tension of the textile wires.
The embodiment of the application provides a positioning performance test method of a textile line positioning mechanism, which comprises the following steps of S1, checking a textile line positioning device, placing a preset line barrel on a line barrel cone of a lifting plate in the textile line positioning device, calibrating the textile line positioning device by using a measuring ruler and an angle meter, S2, fixing the textile line at a preset position of the textile line positioning device, adjusting the tension of the textile line by a tension controller, obtaining a tension level according to the tension of the textile line, obtaining a tension coefficient according to tension influence data, wherein the tension coefficient represents the tension degree to which the textile line is subjected, S3, obtaining a positioning offset coefficient of the textile line positioning device according to the measured positioning distance and positioning time, wherein the positioning offset coefficient represents the positioning offset degree of the textile line positioning device, S4, obtaining a positioning performance coefficient of the textile line positioning device according to the positioning time, the tension influence factor, the tension coefficient and the positioning offset coefficient, wherein the positioning performance coefficient represents the positioning accuracy degree of the textile line positioning device, S5, obtaining a positioning performance coefficient of the textile line positioning device according to a positioning point diagram, obtaining a positioning performance coefficient of the textile line positioning device, and a positioning stability index of the textile line positioning device according to the positioning performance coefficient, and a positioning stability of the positioning device, and positioning performance coefficient of the positioning device is drawn according to the positioning performance stability, wherein the positioning coefficient of the positioning coefficient of the positioning device is stable according to the positioning coefficient is stable.
Further, the tension coefficient is calculated using the following formula:
;
wherein, For the tension coefficient of the textile thread, a is the tension grade number of the textile thread,,As a total number of tension levels,For the diameter of the textile thread,In order to apply tension to the textile thread,The maximum tension of the textile thread is the textile thread.
Further, the specific acquisition step of the positioning performance coefficient comprises the steps of acquiring a tension influence factor according to the ratio of the tension borne by the textile wire to the maximum tension of the textile wire, normalizing the starting time and the ending time, and acquiring the positioning performance coefficient by combining the acquired tension influence factor, the tension coefficient and the positioning offset coefficient.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
1. the textile wire positioning device is checked and calibrated, tension level is obtained by adjusting and recording the tension of the textile wire through the tension controller, tension coefficient is obtained by combining tension influence data, positioning offset coefficient is obtained according to offset influence data, positioning performance coefficient scatter diagram and positioning performance stability index are obtained according to positioning time, tension influence factor, tension coefficient and positioning offset coefficient, and finally the positioning performance of the textile wire positioning device is early warned according to the obtained data, so that the correlation between the positioning performance test and the tension of the textile wire is realized, the correlation between the positioning performance test and the tension of the textile wire is improved, and the problem that the correlation between the positioning performance test and the tension of the textile wire in the prior art is low is effectively solved.
2. The tension sensor is used for measuring the force applied to the textile wire and obtaining the tension level according to the tension of the textile wire, then the digital micrometer is used for measuring the diameter of the textile wire, and finally the tension influence data is normalized and combined with the tension level to obtain the tension coefficient, so that the accurate description of the tension applied to the textile wire in the positioning performance test of the textile wire positioning device is realized, and the positioning performance test and the textile wire tension association are realized.
3. The textile wire positioning device is started, positioning time is obtained according to starting time and ending time, then the positioning distance of the textile wire positioning device is obtained by measuring the distance between the textile wire end and the wire leading hole at the ending time through the digital micrometer, and finally the positioning offset coefficient is obtained according to offset influence data after normalization processing, so that accurate description of positioning offset in the positioning performance test of the textile wire positioning device is realized, and further improvement of the positioning performance test accuracy is realized.
Drawings
FIG. 1 is a flowchart of a method for testing positioning performance of a textile thread positioning mechanism according to an embodiment of the present application;
FIG. 2 is a flow chart of a inspecting textile thread positioning apparatus according to an embodiment of the present application;
FIG. 3 is a flowchart for calculating a tension coefficient according to an embodiment of the present application;
fig. 4 is a diagram showing a change in positioning coefficient of performance according to an embodiment of the present application.
Detailed Description
The embodiment of the application solves the problem of low relevance between a positioning performance test and a textile line tension in the prior art by providing a positioning performance test method for a textile line positioning mechanism, and by checking the textile line positioning device, simultaneously placing a preset line barrel on a line barrel cone of a pressure plate in the textile line positioning device, calibrating the textile line positioning device by using a measuring ruler and an angle meter, then fixing the textile line at a preset position of the textile line positioning device, adjusting the tension of the textile line by a tension controller, obtaining a tension level according to the tension of the textile line, obtaining a tension coefficient by combining with tension influence data, obtaining a positioning offset coefficient of the textile line positioning device according to the measured positioning distance and positioning time, and obtaining a positioning performance coefficient of the textile line positioning device by combining with positioning time, a tension influence factor and the tension coefficient, simultaneously drawing a positioning performance coefficient scatter diagram and a positioning performance stability index according to the positioning performance coefficient of the textile line positioning device, and finally early warning the positioning performance of the textile line positioning device according to the positioning performance coefficient and the positioning performance stability of the textile line positioning device, thereby realizing the improvement of the relevance between the positioning performance test and the textile line.
The technical scheme in the embodiment of the application aims to solve the problem of low relevance between the positioning performance test and the tension of the textile yarns, and the overall thought is as follows:
the tension controller is used for adjusting and recording the tension of the textile wire to obtain a tension grade, tension influence data is combined to obtain a tension coefficient, then a positioning deviation coefficient is obtained according to the deviation influence data, positioning performance coefficient, a positioning performance coefficient scatter diagram and a positioning performance stability index are obtained according to the positioning time, the tension influence factor and the tension coefficient, finally the positioning performance of the textile wire positioning device is pre-warned according to the obtained data, and the effect of improving the relevance between the positioning performance test and the tension of the textile wire is achieved.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
S1, checking and calibrating a textile thread positioning device, namely, placing a preset thread barrel on a thread barrel cone of a lifting plate in the textile thread positioning device and calibrating the textile thread positioning device by using a measuring ruler and an angle meter; S2, calculating a tension coefficient, namely fixing a textile wire at a preset position of a textile wire positioning device, regulating the tension of the textile wire through a tension controller, obtaining a tension grade according to the tension of the textile wire, and obtaining a tension coefficient by combining tension influence data, wherein the tension influence data comprises tension, the diameter of the textile wire and the maximum tension of the textile wire, the tension grade is used for describing the tension grade of the textile wire under the tensile force, the maximum tension of the textile wire represents the tension of the textile wire under the critical state of fracture, the coefficient represents the tension degree of the textile wire, S3, calculating a positioning offset coefficient, namely obtaining the positioning offset coefficient of the textile wire positioning device according to the measured positioning distance and the positioning time, wherein the positioning distance is the distance between the textile wire head and a lead wire hole when the textile wire positioning device stops working, the positioning time is the time from the time when the adhesive plate is searched for the textile wire head to the textile wire positioning device stops working, the positioning offset coefficient represents the positioning offset degree of the textile wire positioning device, S4, calculating a positioning performance coefficient, namely obtaining the positioning performance coefficient of the textile wire positioning device according to the positioning time, the tension influence factor, the tension coefficient and the positioning offset coefficient, wherein the positioning performance coefficient represents the positioning performance coefficient of the textile wire positioning device, and the positioning performance coefficient of the positioning device represents the positioning accuracy degree of the textile wire positioning device, the method comprises the steps of obtaining a positioning performance stability index, drawing a positioning performance coefficient scatter diagram according to the positioning performance coefficient of the textile wire positioning device, obtaining the positioning performance stability index of the textile wire positioning device according to the positioning performance coefficient scatter diagram, wherein the positioning performance stability index represents the stability degree of the positioning performance of the textile wire positioning device, and S6, early warning, namely early warning the positioning performance of the textile wire positioning device according to the positioning performance coefficient and the positioning performance stability degree of the textile wire positioning device.
In the embodiment, the textile thread positioning device comprises a bearing bottom plate, a traction device, a guiding device and a thread filtering device, wherein the bearing bottom plate comprises a pressing plate, a thread barrel cone, a pressing spring, a driving gear, a limiting block, a thread guiding hole, a side plate, a lifting wheel and a lifting clamping wheel, the traction device comprises a sticky plate, a rotating column, a moving block, a moving shaft, a moving gear and a bottom rack, the guiding device comprises a guiding base, a guiding main shaft, a guiding auxiliary shaft, a thread frame, a clamping plate, a top plate spring and a clamping plate, and the thread filtering device comprises a filter plate, a filtering strip and a filtering ball, so that the positioning of the textile thread is realized, and the relevance between positioning performance test and tension of the textile thread is improved.
Further, as shown in fig. 2, a flowchart of the inspecting textile thread positioning device provided by the embodiment of the application includes a connection part inspection and a moving part inspection, wherein the connection part inspection indicates that the firmness and the integrity of the connection part in the textile thread positioning device are inspected, the connection part includes a cable, a joint and a bolt, and the moving part inspection indicates that the damage degree of the moving part in the textile thread positioning device is inspected, and the moving part includes a motor, a bearing and a guide rail.
In the embodiment, in practical application, the cable comprises a power cable, a signal cable and a communication cable, the joint comprises a plug, a socket, a connector and a wiring terminal, the bolt comprises a threaded bolt, a screw and a stud, the motor comprises a direct-current motor, an alternating-current motor and a stepping motor, the bearing comprises a rolling bearing and a sliding bearing, and the guide rail comprises a linear guide rail and a sliding block guide rail, so that the textile wire is positioned, and the relevance between the positioning performance test and the tension of the textile wire is improved.
The method comprises the steps of carrying out a spinning line positioning device, carrying out position calibration and angle calibration on the spinning line positioning device, wherein the position calibration is carried out by using a measuring ruler to calibrate the positions of a movable table top and a clamp in the spinning line positioning device according to position calibration parameters in a spinning line positioning device instruction book, and the angle calibration is carried out by using an angle meter to calibrate the angles of the clamp and a rotating shaft in the spinning line positioning device according to preset angles according to angle calibration parameters in the spinning line positioning device instruction book.
In the embodiment, the textile thread positioning device is subjected to position calibration, for example, the positions of the pressure lifting plate, the thread bucket cone, the limiting block, the thread leading hole, the side plate, the lifting wheel and the lifting clamping wheel are adjusted, and the textile thread positioning device is subjected to angle calibration, for example, the angles of the clamping plate, the top plate, the filter plate and the filtering strip are adjusted, so that the influence of the placement position of the textile thread positioning device on the positioning performance test result is reduced, and the relevance between the positioning performance test and the textile thread tension is improved.
Further, as shown in fig. 3, a flowchart for calculating a tension coefficient is provided for an embodiment of the present application, where the specific obtaining steps of the tension coefficient include obtaining tension and a tension level by measuring a force applied to a textile wire by a tension sensor and obtaining the tension level according to the tension of the textile wire, sandwiching a tensiometer on the textile wire, obtaining a diameter of the textile wire by measuring the diameter of the textile wire by a digital micrometer, and calculating the tension coefficient by normalizing tension influence data and combining the tension level to obtain the tension coefficient, where the normalization processing is used for eliminating units of the tension influence data.
In the embodiment, the maximum tension and the tension of the textile thread are in newtons, the diameter of the textile thread is in millimeters, and in practical application, the maximum tension of the textile thread is related to the material and the diameter, the maximum tension of the textile thread is increased along with the increase of the diameter of the textile thread, the maximum tension of the textile thread of the material is in tens of newtons, and the maximum tension of the textile thread of the material is in hundreds of newtons, so that the tension of the textile thread is differentiated, and the relevance between the positioning performance test and the tension of the textile thread is improved.
Further, the tension coefficient is calculated using the following formula:
;
wherein, For the tension coefficient of the textile thread, a is the tension grade number of the textile thread,,As a total number of tension levels,For the diameter of the textile thread,In order to apply tension to the textile thread,The maximum tension of the textile thread is the textile thread.
In this example, the statistical table of the change in the tension coefficient is shown in table 1:
TABLE 1 statistical table of tension coefficient variation
In particular, toBy taking 50N as an example, the tension coefficient change statistical table can show that when the diameters of the textile wires are equal, the tension level of the textile wires and the tension coefficient of the textile wires are larger, when the diameters of the textile wires are equal, the tension coefficient of the textile wires is larger, and according to the tension coefficient change statistical table, the change trend of the tension coefficient of the textile wires along with the increase of the diameters of the textile wires and the tension of the textile wires can be clearly judged, so that the correlation between the tension coefficient of the textile wires and the diameters of the textile wires and the tension of the textile wires is realized, and the correlation between the positioning performance test and the tension of the textile wires is further improved.
The method comprises the steps of obtaining a positioning offset coefficient, namely starting a textile line positioning device, obtaining positioning time according to starting time and ending time, wherein the starting time is time for finding a textile line head by a sticky board, the ending time is time for stopping working of the textile line positioning device, obtaining the positioning distance of the textile line positioning device by measuring the distance between the textile line head and a lead hole when the ending time is measured by a digital micrometer, and obtaining the positioning offset coefficient according to offset influence data after normalization processing, wherein the offset influence data comprises the starting time, the ending time and the positioning distance.
In this embodiment, the unit of time is generally minutes, before the textile thread positioning device is started, the thread barrel needs to be placed on the thread barrel cone, then the thread barrel is clamped by the thread barrel cone upper buckle, the smaller the difference value between the starting time and the ending time and the absolute value between the textile thread end and the thread hole is, the smaller the positioning offset of the textile thread positioning device is, so that the accurate description of the positioning offset degree of the textile thread positioning device is realized, and the improvement of the relevance between the positioning performance test and the textile thread tension is further realized.
Further, the positioning offset coefficient is calculated using the following formula:
;
wherein, Is the positioning offset coefficient of the textile thread positioning device,For the start time of the textile thread positioning device,For the end time of the textile thread positioning device,Is the positioning distance of the textile thread positioning device.
In this embodiment, the unit of the positioning distance of the textile thread positioning device is typically millimeter, the positioning distance of the textile thread positioning device may be positive or negative, when the positioning distance of the textile thread positioning device is positive, the unit of the distance is millimeter, the positioning distance of the textile thread positioning device may be positive or negative, when the positioning distance of the textile thread positioning device is negative, the positioning offset of the textile thread will increase with the passage of time, thereby realizing accurate description of the positioning offset degree of the textile thread positioning device and further realizing improvement of the relevance between the positioning performance test and the textile thread tension.
The method comprises the following steps of obtaining a tension influence factor according to the ratio of the tension of a textile wire to the maximum tension of the textile wire, normalizing the starting time and the ending time, and obtaining a positioning performance coefficient by combining the obtained tension influence factor, the tension coefficient and the positioning offset coefficient, wherein the positioning performance coefficient is calculated by adopting the following formula:
];
wherein, Is the positioning performance coefficient of the textile thread positioning device,For the tension coefficient of the textile thread,For the start time of the textile thread positioning device,For the end time of the textile thread positioning device,Is the positioning offset coefficient of the textile thread positioning device,E is a natural constant, which is a tension influencing factor.
In this embodiment, a tension influence factor of 0.8 and a difference between a start time and an end time of the textile wire positioning device of 6 minutes are taken as an example, as shown in fig. 4, a positioning performance coefficient change chart provided by an embodiment of the present application can be seen, and the positioning performance coefficient of the textile wire positioning device increases with an increase in the tension coefficient of the textile wire, so that the relationship between the positioning performance of the textile wire positioning device and the tension applied to the textile wire is realized, and further the relationship between the positioning performance test and the tension of the textile wire is improved.
The method comprises the steps of obtaining a positioning performance stability index of a textile line positioning device, drawing a positioning performance coefficient scatter diagram according to the positioning performance coefficient of the textile line positioning device, selecting a fitting model according to the data development trend and the data characteristics of the positioning performance coefficient scatter diagram, obtaining parameters of the fitting model by using a least square method, wherein the fitting model is a fitting line function type, the parameters are variable coefficients of the fitting line function, drawing a fitting line on the scatter diagram according to the parameters of the fitting model, obtaining the positioning performance stability index of the textile line positioning device according to the reciprocal of the variation difference of the fitting line, wherein the variation difference is the difference between the maximum value and the minimum value of the fitting line of the positioning performance coefficient scatter diagram, and the fitting line represents the variation trend of the positioning performance coefficient.
In this embodiment, the fitting model includes a linear model, a polynomial model, an exponential model, a logarithmic model, a power function model and a logarithmic linear model, in practical application, when the data development trend of the positioning performance coefficient scatter diagram is continuous to be an ascending trend and the ascending speed is faster, the exponential model can be selected, the closer the fitting line function is to the constant line, the more stable the positioning performance of the textile line positioning device is represented, the textile line positioning device with a stable positioning performance index is preferably put into use, so that accurate description of the positioning performance of the textile line positioning device is realized, and further, the relevance between the positioning performance test and the textile line tension is improved.
Further, the specific process of carrying out early warning on the positioning performance of the textile wire positioning device is that a preset early warning threshold value and a second preset early warning threshold value are obtained according to the actual use scene of a user and the standard positioning distance of the textile wire positioning device, the standard positioning distance of the textile wire positioning device is the standard positioning distance marked by the instruction book of the textile wire positioning device, the preset early warning threshold value represents a critical value with qualified positioning performance of the textile wire positioning device, the second preset early warning threshold value represents a critical value with stable positioning performance of the textile wire positioning device, the positioning performance coefficient of the textile wire positioning device is compared with the preset early warning threshold value, if the positioning performance coefficient of the textile wire positioning device is smaller than the preset early warning threshold value, early warning is sent out, otherwise, the relation between the variation difference value of the textile wire positioning device and the second preset early warning threshold value is judged, if the variation difference value of the textile wire positioning device is larger than the second preset threshold value, and otherwise, the textile wire positioning device is put into practical scene.
In this embodiment, two pre-warning needs to be performed, and the positioning performance coefficient of the textile wire positioning device is not less than the preset pre-warning threshold value, so that the positioning performance of the textile wire positioning device reaches the qualification standard, and when the positioning performance of the textile wire positioning device is qualified, a device with small variation difference value of the textile wire positioning device is preferentially selected, so that dual screening of the positioning performance of the textile wire positioning device is realized, and further, the relevance between the positioning performance test and the textile wire tension is improved.
In summary, the embodiment of the application checks and calibrates the textile wire positioning device, then adjusts and records the tension of the textile wire through the tension controller to obtain the tension level and combines the tension influence data to obtain the tension coefficient, obtains the positioning deviation coefficient according to the deviation influence data, then obtains the positioning performance coefficient, the positioning performance coefficient scatter diagram and the positioning performance stability index according to the positioning time, the tension influence factor, the tension coefficient and the positioning deviation coefficient, and finally pre-warns the positioning performance of the textile wire positioning device according to the obtained data, thereby realizing the association between the positioning performance test and the tension of the textile wire, further realizing the improvement of the association between the positioning performance test and the tension of the textile wire, and effectively solving the problem that the association between the positioning performance test and the tension of the textile wire in the prior art is low.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The positioning performance test method of the textile thread positioning mechanism is characterized by comprising the following steps of:
s1, checking a textile thread positioning device, placing a preset thread bucket on a thread bucket cone of a pressure boosting plate in the textile thread positioning device, and calibrating the textile thread positioning device by using a measuring ruler and an angle meter;
S2, fixing the textile wire at a preset position of a textile wire positioning device, adjusting the tension of the textile wire through a tension controller, obtaining a tension level according to the tension of the textile wire, and acquiring a tension coefficient by combining tension influence data, wherein the tension coefficient represents the tension degree of the textile wire;
s3, obtaining a positioning offset coefficient of the textile wire positioning device according to the measured positioning distance and positioning time, wherein the positioning offset coefficient represents the positioning offset degree of the textile wire positioning device;
S4, obtaining a positioning performance coefficient of the textile thread positioning device according to the positioning time, the tension influence factor, the tension coefficient and the positioning offset coefficient, wherein the positioning performance coefficient represents the positioning accuracy of the textile thread positioning device;
s5, drawing a positioning performance coefficient scatter diagram according to the positioning performance coefficient of the textile wire positioning device, and accordingly obtaining a positioning performance stability index of the textile wire positioning device, wherein the positioning performance stability index represents the stability degree of the positioning performance of the textile wire positioning device;
s6, early warning is carried out on the positioning performance of the textile wire positioning device according to the positioning performance coefficient and the positioning performance stability of the textile wire positioning device.
2. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the inspecting the textile thread positioning device comprises inspecting a connecting component and inspecting a moving component;
The connection part inspection means for inspecting the firmness and integrity of the connection part in the textile thread locating device;
The moving part inspection means to inspect the degree of damage of the moving part in the textile thread locating device.
3. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the calibrating the textile thread positioning device comprises position calibration and angle calibration;
the position calibration is to calibrate the positions of a movable table top and a clamp in the textile thread positioning device by using a measuring ruler;
the angle calibration is to calibrate the angles of the clamp and the rotating shaft in the textile thread positioning device according to a preset angle by using an angle meter.
4. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the specific obtaining step of the tension coefficient is as follows:
Measuring the force exerted on the textile threads by a tension sensor and obtaining a tension level according to the tension of the textile threads, wherein a tension meter is clamped on the textile threads;
Measuring the diameter of the textile thread by a digital micrometer;
And normalizing the tension influence data and combining the tension level to obtain a tension coefficient.
5. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the tension coefficient is calculated using the following formula:
;
wherein, For the tension coefficient of the textile thread, a is the tension grade number of the textile thread,,As a total number of tension levels,For the diameter of the textile thread,In order to apply tension to the textile thread,The maximum tension of the textile thread is the textile thread.
6. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the specific obtaining steps of the positioning offset coefficient are as follows:
Starting the textile thread positioning device, and acquiring positioning time according to the starting time and the ending time;
obtaining the positioning distance of the textile thread positioning device by measuring the distance between the textile thread end and the thread leading hole at the end time through a digital micrometer;
and obtaining a positioning offset coefficient according to the offset influence data after normalization processing.
7. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the positioning offset coefficient is calculated by using the following formula:
;
wherein, Is the positioning offset coefficient of the textile thread positioning device,For the start time of the textile thread positioning device,For the end time of the textile thread positioning device,Is the positioning distance of the textile thread positioning device.
8. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the specific obtaining steps of the positioning performance coefficient are as follows:
obtaining a tension influence factor according to the ratio of the tension borne by the textile wire to the maximum tension of the textile wire;
And normalizing the starting time and the ending time and combining the obtained tension influence factor, the tension coefficient and the positioning offset coefficient to obtain the positioning performance coefficient.
9. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the specific acquisition steps of the positioning performance stability index of the textile thread positioning device are as follows:
drawing a positioning performance coefficient scatter diagram according to the positioning performance coefficient of the textile thread positioning device;
selecting a fitting model according to the data development trend and the data characteristics of the positioning coefficient of performance scatter diagram, and obtaining parameters of the fitting model by using a least square method;
and drawing a fitting line on the scatter diagram according to the parameters of the fitting model, and obtaining the positioning performance stability index of the textile line positioning device according to the reciprocal of the variation difference value of the fitting line.
10. The method for testing the positioning performance of a textile thread positioning mechanism according to claim 1, wherein the specific process of pre-warning the positioning performance of the textile thread positioning device is as follows:
Obtaining a preset early warning threshold value and a second preset early warning threshold value according to the actual use scene of the user and the standard positioning distance of the textile thread positioning device;
Comparing the positioning performance coefficient of the textile wire positioning device with a preset early warning threshold value, sending out early warning if the positioning performance coefficient of the textile wire positioning device is smaller than the preset early warning threshold value, otherwise judging the relation between the variation difference value of the textile wire positioning device and a second preset early warning threshold value, sending out early warning if the variation difference value of the textile wire positioning device is larger than the second preset early warning threshold value, otherwise putting the textile wire positioning device into an actual scene for application.
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