Automatic segmented detection system for strength of textile cloth

Abstract

The invention belongs to the technical field of textile cloth detection, and particularly discloses an automatic segmented detection system for the strength of textile cloth. The system comprises a cloth equipment detection module, a cloth equipment analysis module, a cloth equipment control module, a cloth placement detection module, a cloth placement analysis module, a cloth placement control module, a cloth strength detection module, a cloth strength analysis module and a cloth feedback terminal. The strength qualification index of the textile cloth is analyzed according to the strength information of the textile cloth, comprehensive consideration of the strength of the textile cloth is achieved, the accuracy of tensile strength analysis of the textile cloth is improved, and then the durability of the textile cloth in subsequent use is guaranteed; and meanwhile, the strength qualification index of the textile cloth is subjected to segmented detection analysis according to the tensile strength, the tearing strength and the bursting strength, so that the tensile strength analysis accuracy of the textile cloth is improved, and the overall safety of the textile cloth is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of textile cloth detection, and relates to an automatic segmented detection system for the strength of textile cloth. Background Art

[0002] Textile fabrics refer to various types of fabrics processed through textile technology. These fabrics can be made of different fiber materials, such as cotton, linen, silk, wool and various chemical fibers. Textile fabrics are widely used in industrial, household, aerospace and medical fields. Therefore, in order to meet the application of textile fabrics in different fields, it is necessary to test the strength performance of textile fabrics.

[0003] For example, the Chinese patent announcement number CN114384081A discloses a textile fabric defect detection device and a detection method thereof, which includes a drive control system, the drive control system is connected to a semiconductor laser array, and the output light path of the semiconductor laser array is sequentially provided with a fast and slow axis collimator and a beam splitter, and the beam splitter is respectively connected to a transmission imaging system and a photoelectric detection system, and the transmission imaging system is also connected to an off-axis beam control system. The semiconductor laser is irradiated to the surface of the textile fabric, and the reflected light from the surface of the textile fabric is fed back to the change in the intensity of the self-mixing interference signal in the semiconductor laser cavity to judge the defects of the textile fabric. There is no need to apply complex algorithms, and the detection can be responded to quickly in real time, avoiding the disadvantages of slow detection response speed and recognition error caused by massive data processing. The textile fabric defect detection device has a simple structure and can improve detection accuracy and efficiency.

[0004] The above existing technologies have the following deficiencies: 1. When currently conducting quality inspection of textile fabrics, the focus is mainly on the inspection and analysis of the apparent defects of textile fabrics, that is, insufficient attention is paid to the strength performance analysis of textile fabrics, and there is a lack of comprehensive consideration of the strength of textile fabrics, thereby being unable to guarantee the durability of the subsequent use of the textile fabrics, thereby leading to potential safety hazards.

[0005] 2. The current testing of textile fabrics is an integrated test, and no segmented testing is performed on the textile fabrics, which results in insufficient accuracy in the analysis of textile fabrics and inability to accurately reflect the qualified index of textile fabrics, making it impossible to accurately assess the risk of using textile fabrics, and at the same time affecting the overall safety of textile fabrics.

[0006] 3. The current strength test of textile fabrics is a single warp dimension tensile strength test and analysis. The weft and diagonal latitudes of the textile fabrics are not tested and analyzed, which cannot fully reflect the tensile strength characteristics of the textile fabrics, thereby reducing the timeliness of the discovery of potential quality defects and affecting the durability of the textile fabrics. Summary of the invention

[0007] In view of this, in order to solve the problems raised in the above background technology, an automatic segmented detection system for the strength of textile fabrics is now proposed.

[0008] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides an automatic segmented detection system for textile cloth strength, including: a cloth equipment detection module, which is used to detect the equipment information of the textile cloth strength detection equipment.

[0009] The cloth equipment analysis module is used to analyze the qualified index of the textile cloth strength testing equipment according to the equipment information of the textile cloth strength testing equipment.

[0010] The cloth equipment control module is used to perform cloth equipment control analysis according to the qualified index of the textile cloth strength testing equipment to obtain the control information of the textile cloth strength testing equipment.

[0011] The cloth placement detection module is used to place the textile cloth in the detection area and detect the placement information of the textile cloth.

[0012] The cloth placement analysis module is used to analyze the placement qualification index of the textile cloth according to the placement information of the textile cloth.

[0013] The cloth placement control module is used to perform cloth placement control analysis according to the placement qualification index of the textile cloth to obtain control information of the textile cloth placement.

[0014] The cloth strength detection module is used to detect the strength information of textile cloth, including tensile strength information, tear strength information and bursting strength information.

[0015] The cloth strength analysis module is used to analyze the strength qualification index of the textile cloth according to the strength information of the textile cloth.

[0016] The cloth feedback terminal is used to provide corresponding feedback based on the control information of the textile cloth strength detection equipment, the control information of the textile cloth placement and the strength qualification index.

[0017] Furthermore, the analysis of the qualified index of the textile cloth strength testing equipment includes: extracting the clamping force of each testing point when the clamp is clamped from the equipment information of the textile cloth strength testing equipment.

[0018] The clamping force of each clamp detection point when the clamp is tightened is subtracted from the clamping force of the set reference to obtain the clamping force deviation value of each clamp detection point. If the clamping force deviation value of a clamp detection point is within the clamping deviation value interval of the set reference, the clamp detection point is recorded as a qualified clamp detection point. The number of qualified clamp detection points is counted, and the ratio of the qualified clamp detection point to the number of clamp detection points is used as the qualified index of the clamp clamping force of the textile cloth strength testing equipment, recorded as .

[0019] The linear deviation of each measuring point on the guide rail is extracted from the equipment information of the textile cloth strength testing equipment, and the average linear deviation of the guide rail is obtained by calculating the average linear deviation, which is recorded as , and extract the maximum straight line deviation from it, recorded as .

[0020] Statistics on guide rail linear deviation qualified index of textile fabric strength testing equipment , , To set the reference straight line deviation.

[0021] The speed of the slider at each slider detection point is extracted from the equipment information of the textile cloth strength detection equipment, and the speed difference of the slider at each slider detection point is obtained by subtracting the speed from the set reference speed.

[0022] The speed difference of the slider at each slider detection point is compared with the set reference speed difference. If the speed difference of the slider at a slider detection point is less than or equal to the set reference speed difference, the slider detection point is recorded as a speed qualified slider detection point. The number of speed qualified slider detection points is counted, and the ratio of the speed qualified slider detection points to the number of slider detection points is used as the slider speed qualified index of the textile cloth strength testing equipment, recorded as .

[0023] Statistics on the equipment qualification index of textile fabric strength testing equipment , .

[0024] Furthermore, the cloth equipment control analysis includes: when the equipment qualification index of the textile cloth strength detection equipment is greater than or equal to the set reference equipment qualification index, performing textile cloth placement detection as control information of the textile cloth strength detection equipment.

[0025] When the equipment qualification index of the textile fabric strength testing equipment is less than the set reference equipment qualification index, if , the fixture is regarded as an unqualified part of the textile fabric strength testing equipment. It is used to set the qualified index of clamping force of the reference fixture.

[0026] like , the guide rail is regarded as an unqualified part of the textile cloth strength testing equipment. It is used to set the guide rail linear deviation qualification index for reference.

[0027] like , the slider is regarded as an unqualified part of the textile fabric strength testing equipment. It is used to set the slider speed qualification index for reference.

[0028] The unqualified parts of the textile cloth strength testing equipment and the early warning instructions of the corresponding unqualified parts are used as the control information of the textile cloth strength testing equipment.

[0029] Further, the analysis of the placement qualification index of the textile fabric includes: H1, extracting the height difference between each measuring point in the textile fabric and the ideal plane from the placement information of the textile fabric, recorded as , Number the measurement points. .

[0030] H2. Statistical flatness of textile fabrics , , is the number of measurement points.

[0031] H3. Extract the number of wrinkles in the textile cloth detection image, the area of ​​each wrinkle, and the area of ​​the textile cloth detection region from the placement information of the textile cloth.

[0032] H4. Sum the areas of all folds to get the total area of ​​folds, recorded as , and the textile fabric detection area is recorded as .

[0033] H5, record the number of folds as , count the wrinkles of textile fabrics , , and They are respectively used to set the reference fold area ratio and the allowed number of folds.

[0034] H6. Statistics on the placement qualification index of textile fabrics , , and Set the flatness and wrinkle degree of the reference respectively.

[0035] Furthermore, the cloth placement control analysis includes: when the placement qualification index of the textile cloth is greater than or equal to the set reference placement qualification index, performing textile cloth strength detection as control information for the placement of the textile cloth.

[0036] When the placement qualification index of the textile cloth is less than the set reference placement qualification index, the placement of the textile cloth is adjusted as the control information of the placement of the textile cloth.

[0037] Further, the strength qualification index of the textile fabric is analyzed, including: G1, extracting the warp stretch information, weft stretch information and diagonal stretch information of the textile fabric from the tensile strength information of the textile fabric, and then calculating the tensile strength qualification index of the textile fabric. .

[0038] G2. According to the tear strength information of textile fabrics, calculate the tear strength qualified index of textile fabrics .

[0039] G3. According to the bursting strength information of textile fabrics, calculate the bursting strength qualified index of textile fabrics .

[0040] G4. Statistical strength index of textile fabrics , , , and are the weights of the set tensile strength qualified index, tear strength qualified index and bursting strength qualified index, respectively. , .

[0041] Furthermore, the statistical calculation of the qualified index of the tensile strength of the textile fabric comprises: extracting the stretched length of the textile fabric under each set warp stretching force from the warp stretching information of the textile fabric, and then calculating the qualified index of the warp tensile strength of the textile fabric. .

[0042] According to the weft stretch information and diagonal stretch information of the textile fabric, The qualified index of the weft tensile strength and the qualified index of the oblique tensile strength of the textile fabric are obtained by the same analysis method, and are recorded as and .

[0043] Statistics on the tensile strength qualification index of textile fabrics , , , and are the weights of the set warp tensile strength qualified index, weft tensile strength qualified index and diagonal tensile strength qualified index, respectively. , .

[0044] Furthermore, the statistical calculation of the qualified index of the warp tensile strength of the textile fabric includes: subtracting the stretched length of the textile fabric under each set warp tensile force from the set stretched length to obtain the stretched length difference of the textile fabric under each set warp tensile force.

[0045] If the stretch length difference under a certain set warp stretch force is less than or equal to the set reference stretch length difference, the stretch length under the set warp stretch force is recorded as the qualified stretch length, the number of qualified stretch lengths is counted, and the ratio of the qualified stretch length to the number of stretch lengths is used as the warp stretch qualified index of the textile fabric, recorded as .

[0046] The initial light intensity of the light transmission detection of the textile fabric under each set warp tensile force and the light intensity after passing through the textile fabric are extracted from the warp tensile information of the textile fabric and recorded as and , To set the warp tensile force number, .

[0047] Statistical analysis of light transmittance of textile fabrics at various warp tensile forces , .

[0048] Statistics on the warp tensile light transmittance index of textile fabrics , , For the The reference transmittance under a set longitudinal tensile force is is the number of tensile forces in the warp direction.

[0049] from and The minimum value is selected as the qualified index of the warp tensile strength of the textile fabric, which is recorded as .

[0050] Furthermore, the statistical tear strength qualified index of the textile fabric includes: extracting the maximum tear strength of the textile fabric in the warp direction from the tear strength information of the textile fabric, recorded as .

[0051] Statistical analysis of warp tearing deviation of textile fabrics , , The standard tear strength for setting reference.

[0052] Statistics on the warp tearing index of textile fabrics , , To set the reference warp tear deviation.

[0053] The maximum tear strength of weft tear and diagonal tear of textile fabrics is extracted from the tear strength information of textile fabrics. The statistical method is similar to that of the textile fabric to obtain the weft tearing qualified index and the oblique tearing qualified index, and they are recorded as and .

[0054] Will , and The average value is calculated and the result is used as the tear strength qualification index of the textile fabric and recorded as .

[0055] Furthermore, the statistical calculation of the bursting strength qualified index of the textile fabric includes: extracting the maximum bursting strength of the textile fabric from the bursting strength information of the textile fabric.

[0056] according to The bursting strength qualified index of textile fabrics is obtained by the same statistical method, which is recorded as .

[0057] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention avoids the current lack of attention to the strength performance analysis of textile fabrics by analyzing the strength qualification index of textile fabrics based on the strength information of textile fabrics, realizes the comprehensive consideration of the strength of textile fabrics, and further ensures the durability of the subsequent use of textile fabrics, thereby reducing potential safety hazards.

[0058] (2) The present invention performs segmented detection and analysis on the strength of textile fabrics according to tensile strength, tear strength and bursting strength, thereby breaking the current deficiency of not performing segmented detection on textile fabrics, improving the accuracy of the tensile strength analysis of textile fabrics, and further improving the accuracy of the analysis results of the tensile strength qualification index of textile fabrics, thereby improving the overall safety of textile fabrics.

[0059] (3) The present invention conducts a multi-dimensional comprehensive analysis of the tensile strength of textile fabrics according to the three dimensions of warp stretch, weft stretch and diagonal stretch of the textile fabrics, thereby avoiding the current deficiency of not conducting detection and analysis on the weft and diagonal latitudes of the textile fabrics, and more comprehensively reflects the tensile strength characteristics of the textile fabrics, thereby improving the timeliness of the discovery of potential quality defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0061] Figure 1 It is a schematic diagram of the connection of each module of the system of the present invention.

[0062] Figure 2 The figure is a connection diagram of the qualified index analysis steps of the present invention.

[0063] Figure 3 It is a connection schematic diagram of the strength qualification index analysis steps of the present invention. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] See also Figure 1 As shown, the present invention provides a textile cloth strength automatic segmented detection system, the system includes: a cloth equipment detection module, a cloth equipment analysis module, a cloth equipment control module, a cloth placement detection module, a cloth placement analysis module, a cloth placement control module, a cloth strength detection module, a cloth strength analysis module and a cloth feedback terminal.

[0066] In the above, the cloth equipment analysis module is respectively connected to the cloth equipment detection module and the cloth equipment control module, the cloth equipment control module is respectively connected to the cloth placement detection module and the cloth feedback terminal, the cloth placement analysis module is respectively connected to the cloth placement detection module and the cloth placement control module, the cloth placement control module is respectively connected to the cloth strength detection module and the cloth feedback terminal, and the cloth strength analysis module is also respectively connected to the cloth strength detection module and the cloth feedback terminal.

[0067] The cloth equipment detection module is used to detect equipment information of textile cloth strength detection equipment.

[0068] It should be added that the equipment information of the textile fabric strength testing equipment includes the clamping force of each testing point when the fixture is clamped, the linear deviation of each measuring point on the guide rail, and the speed of the slider at each testing point.

[0069] It should be added that the clamping force of each detection point when the fixture is clamped is detected by the pressure sensors installed at each detection point on the fixture. The linear deviation of each measuring point on the guide rail is obtained by using a laser interferometer to measure the straightness of the guide rail. Within the full length of the guide rail, the measurement point spacing is set to 100mm, and the deviation value of each point is recorded. For example, if the guide rail length is 1m, the overall straightness linear deviation should not exceed ±0.02mm. The speed of the slider at each detection point is detected by a laser velocimeter. Its specific working principle is as follows: When the laser is irradiated onto the surface of the moving slider, the frequency of the reflected light will change, and this frequency change is proportional to the speed of the slider. The speed of the slider is calculated by measuring the change in the frequency of the reflected light. For example, the laser velocimeter emits a beam of laser to the slider and detects the change in the frequency of the reflected light. According to the Doppler effect formula (in is the laser wavelength) and the slider speed can be obtained.

[0070] The cloth equipment analysis module is used to analyze the qualified index of the textile cloth strength testing equipment according to the equipment information of the textile cloth strength testing equipment.

[0071] Exemplarily, the analysis of the qualified index of the textile cloth strength testing equipment includes: extracting the clamping force of each testing point when the clamp is clamped from the equipment information of the textile cloth strength testing equipment.

[0072] The clamping force of each clamp detection point when the clamp is tightened is subtracted from the clamping force of the set reference to obtain the clamping force deviation value of each clamp detection point. If the clamping force deviation value of a clamp detection point is within the clamping deviation value interval of the set reference, the clamp detection point is recorded as a qualified clamp detection point. The number of qualified clamp detection points is counted, and the ratio of the qualified clamp detection point to the number of clamp detection points is used as the qualified index of the clamp clamping force of the textile cloth strength testing equipment, recorded as .

[0073] The linear deviation of each measuring point on the guide rail is extracted from the equipment information of the textile cloth strength testing equipment, and the average linear deviation of the guide rail is obtained by calculating the average linear deviation, which is recorded as , and extract the maximum straight line deviation from it, recorded as .

[0074] Statistics on guide rail linear deviation qualified index of textile fabric strength testing equipment , , To set the reference straight line deviation.

[0075] It should be added that It is extracted from the technical specification table of automated segmented testing of textile fabric strength.

[0076] The speed of the slider at each slider detection point is extracted from the equipment information of the textile cloth strength detection equipment, and the speed difference of the slider at each slider detection point is obtained by subtracting the speed from the set reference speed.

[0077] The speed difference of the slider at each slider detection point is compared with the set reference speed difference. If the speed difference of the slider at a slider detection point is less than or equal to the set reference speed difference, the slider detection point is recorded as a speed qualified slider detection point. The number of speed qualified slider detection points is counted, and the ratio of the speed qualified slider detection points to the number of slider detection points is used as the slider speed qualified index of the textile cloth strength testing equipment, recorded as .

[0078] Statistics on the equipment qualification index of textile fabric strength testing equipment , .

[0079] The cloth equipment control module is used to perform cloth equipment control analysis according to the qualified index of the textile cloth strength detection equipment to obtain control information of the textile cloth strength detection equipment.

[0080] Exemplarily, the cloth equipment control analysis includes: when the equipment qualification index of the textile cloth strength detection equipment is greater than or equal to the set reference equipment qualification index, performing textile cloth placement detection as control information of the textile cloth strength detection equipment.

[0081] When the equipment qualification index of the textile fabric strength testing equipment is less than the set reference equipment qualification index, if , the fixture is regarded as an unqualified part of the textile fabric strength testing equipment. It is used to set the qualified index of clamping force of the reference fixture.

[0082] like , the guide rail is regarded as an unqualified part of the textile cloth strength testing equipment. It is used to set the guide rail linear deviation qualification index for reference.

[0083] like , the slider is regarded as an unqualified part of the textile fabric strength testing equipment. It is used to set the slider speed qualification index for reference.

[0084] The unqualified parts of the textile cloth strength testing equipment and the early warning instructions of the corresponding unqualified parts are used as the control information of the textile cloth strength testing equipment.

[0085] The cloth placement detection module is used to place the textile cloth in the detection area and detect the placement information of the textile cloth.

[0086] It should be added that the placement information of the textile fabric includes: the height difference between each measuring point in the textile fabric and the ideal plane and the textile fabric detection image.

[0087] It should be added that the laser displacement sensor emits a laser beam to the surface of the textile cloth, and determines the distance from the sensor to the cloth surface by measuring the time or phase change of the laser reflected back to the sensor. By comparing the data of multiple measurement points with the set ideal plane (whose distance from the sensor is known), the height difference between each measurement point and the ideal plane can be obtained. For example, the distance from the sensor to the ideal plane is , the round trip time of the laser when measuring a certain point is , the speed of light is , then the distance from this point to the sensor , and then get the height difference between the point and the ideal plane .

[0088] It should be added that the textile fabric inspection image is obtained by means of a camera placed above the textile fabric strength inspection device.

[0089] The cloth placement analysis module is used to analyze the placement qualification index of the textile cloth according to the placement information of the textile cloth.

[0090] See also Figure 2 As shown, exemplarily, the analysis of the placement qualification index of the textile cloth includes: H1, extracting the height difference between each measuring point in the textile cloth and the ideal plane from the placement information of the textile cloth, recorded as , Number the measurement points. .

[0091] H2. Statistical flatness of textile fabrics , , is the number of measurement points.

[0092] H3. Extract the number of wrinkles in the textile cloth detection image, the area of ​​each wrinkle, and the area of ​​the textile cloth detection region from the placement information of the textile cloth.

[0093] It should be added that the number of wrinkles is obtained by using an edge detection algorithm to process the textile cloth detection image, and then according to the Canny algorithm, by calculating the size and direction of the image gradient, setting appropriate high and low thresholds (for example, the high threshold is 100 and the low threshold is 50) to detect edge pixels, thereby obtaining the edge contour information of the cloth surface, and based on the edge detection, using the contour extraction algorithm to extract all possible contours, and judging which contours are wrinkles based on features such as the shape, size and curvature of the contour, and counting the contours judged to be wrinkles to obtain the number of wrinkles.

[0094] It should be added that the area of ​​each wrinkle is obtained in the following way: on the basis of the above contour extraction, for each contour identified as a wrinkle, the number of pixels contained in the contour is calculated, and then the actual area corresponding to each pixel is obtained according to the predetermined conversion relationship between image pixels and actual area (for example, the actual area corresponding to each pixel is obtained by measuring the standard sample). mm2 / pixel), the number of pixels within the wrinkle outline Multiply , get the area of ​​the wrinkle , and then the area of ​​each fold is obtained.

[0095] H4. Sum the areas of all folds to get the total area of ​​folds, recorded as , and the textile fabric detection area is recorded as .

[0096] H5, record the number of folds as , count the wrinkles of textile fabrics , , and They are respectively used to set the reference fold area ratio and the allowed number of folds.

[0097] It should be added that the allowable wrinkle area is extracted from the technical specification table of automated segmented detection of textile fabric strength, and the ratio of the allowable wrinkle area to the detection image area is used as the reference wrinkle area ratio. , It is extracted from the technical specification table of automated segmented testing of textile fabric strength.

[0098] H6. Statistics on the placement qualification index of textile fabrics , , and Set the flatness and wrinkle degree of the reference respectively.

[0099] It should be added that and All of them are extracted from the technical specification table of automated segmented testing of textile fabric strength.

[0100] The cloth placement control module is used to perform cloth placement control analysis according to the placement qualification index of the textile cloth to obtain control information of the textile cloth placement.

[0101] Exemplarily, the cloth placement control analysis includes: when the placement qualification index of the textile cloth is greater than or equal to the set reference placement qualification index, performing textile cloth strength detection as control information for the placement of the textile cloth.

[0102] When the placement qualification index of the textile cloth is less than the set reference placement qualification index, the placement of the textile cloth is adjusted as the control information of the placement of the textile cloth.

[0103] The cloth strength detection module is used to detect the strength information of textile cloth, including tensile strength information, tear strength information and bursting strength information.

[0104] It should be supplemented that the tensile strength information of textile fabrics includes: warp stretch information, weft stretch information and diagonal stretch information; the tear strength information of textile fabrics includes: the maximum tear strength of warp tear, weft tear and diagonal tear of textile fabrics; the bursting strength information of textile fabrics includes: the maximum bursting strength of textile fabrics.

[0105] It should be added that the warp stretch information of the textile fabric includes: the stretching length of the textile fabric under each set warp stretch force, the initial light intensity of the textile fabric under each set warp stretch force during stretching light transmission detection, and the light intensity after passing through the textile fabric.

[0106] It should be added that the method for obtaining the stretching length of the textile fabric under each set warp stretching force is as follows: the textile fabric is mounted on the fixture of the textile fabric strength testing device to ensure that the warp direction is consistent with the stretching direction, and then the textile fabric strength testing device is started at the set stretching speed and warp stretching force, and at the same time, the change in the stretching length is recorded in real time through the length measuring device. When the warp stretching force reaches the set value, the textile fabric strength testing device is stopped and the stretching length at this time is recorded. For example, the set warp stretching force is 50N, the initial textile fabric length is 200mm, and the length of the textile fabric after stretching is 205mm. The stretching length under the warp stretching force of 50N is 205-200=5mm. The textile fabric is unloaded to restore it to its original state, and then the stretching length under each set warp stretching force is obtained in the same way as the above-mentioned stretching length acquisition method.

[0107] It should be supplemented that the initial light intensity of the textile fabric in the stretch transmittance test under each set warp tensile force is obtained by detecting with a photometer installed near the light source, and the light intensity after the textile fabric is stretched and transmitted through the textile fabric in the stretch transmittance test under each set warp tensile force is obtained by detecting with a photometer installed directly behind the textile fabric.

[0108] The cloth strength analysis module is used to analyze the strength qualification index of the textile cloth according to the strength information of the textile cloth.

[0109] See also Figure 3 As shown, exemplarily, the analysis of the strength qualification index of the textile fabric includes: G1, extracting the warp stretch information, weft stretch information and oblique stretch information of the textile fabric from the tensile strength information of the textile fabric, and then calculating the tensile strength qualification index of the textile fabric .

[0110] It should be added that warp stretching is stretching along the direction of loom operation, weft stretching is stretching in a direction perpendicular to the warp, and oblique stretching is stretching in a direction at a 45-degree angle to the warp.

[0111] The embodiment of the present invention analyzes the strength qualification index of textile fabrics according to the strength information of textile fabrics, thereby avoiding the current lack of attention to the strength performance analysis of textile fabrics, achieving comprehensive consideration of the strength of textile fabrics, and further ensuring the durability of the subsequent use of the textile fabrics, thereby reducing potential safety hazards.

[0112] Further, the statistical tensile strength qualified index of the textile fabric includes: G1-1, extracting the stretched length of the textile fabric under each set warp stretching force from the warp stretching information of the textile fabric, and then statistically calculating the warp tensile strength qualified index of the textile fabric .

[0113] Furthermore, the qualified index of the warp tensile strength of the textile fabric is statistically calculated, including: G1-1-1, subtracting the stretching length of the textile fabric under each set warp tensile force from the set stretching length to obtain the stretching length difference of the textile fabric under each set warp tensile force.

[0114] G1-1-2. If the stretch length difference under a certain set warp tensile force is less than or equal to the set reference stretch length difference, the stretch length under the set warp tensile force is recorded as the qualified stretch length, the number of qualified stretch lengths is counted, and the ratio of the qualified stretch length to the number of stretch lengths is used as the warp tensile qualified index of the textile fabric, recorded as .

[0115] G1-1-3. Extract the initial light intensity of the light transmission test of the textile cloth under each set warp tensile force and the light intensity after passing through the textile cloth from the warp tensile information of the textile cloth, and record them as and , To set the warp tensile force number, .

[0116] G1-1-4. Statistical analysis of light transmittance of textile fabrics under various set warp tensile forces , .

[0117] G1-1-5. Statistics on the warp tensile light transmittance index of textile fabrics , , For the The reference transmittance under a set longitudinal tensile force is is the number of tensile forces in the warp direction.

[0118] It should be added that It is extracted from the technical specification table of automated segmented testing of textile fabric strength.

[0119] G1-1-6, from and The minimum value is selected as the qualified index of the warp tensile strength of the textile fabric, which is recorded as .

[0120] G1-2, according to the weft stretch information and diagonal stretch information of the textile fabric, The qualified index of the weft tensile strength and the qualified index of the oblique tensile strength of the textile fabric are obtained by the same analysis method, and are recorded as and .

[0121] G1-3. Statistical tensile strength qualification index of textile fabrics , , , and are the weights of the set warp tensile strength qualified index, weft tensile strength qualified index and diagonal tensile strength qualified index, respectively. , .

[0122] It should be added that the warp yarns usually bear the main tension. When the loom is working, the warp yarns need to maintain a high tension to ensure the structural stability and uniformity of the fabric. The weft yarns are interwoven with the warp yarns to form the basic structure of the fabric. The weft yarns play an important role in maintaining the flatness and stability of the fabric online, but the tension they are subjected to during the weaving process is not as great as that of the warp yarns. Therefore, the weight of the warp tensile strength qualified index is greater than that of the weft tensile strength qualified index. During the use of the fabric, there are relatively few cases of oblique force, and most of the external forces are mainly concentrated in the warp and weft directions. Therefore, the setting , in order to facilitate analysis, The specific value can be 0.5. The specific value can be 0.3. The specific value can be 0.2.

[0123] The embodiment of the present invention performs a multi-dimensional comprehensive analysis of the tensile strength of the textile fabric according to the three dimensions of the warp stretch, weft stretch and diagonal stretch of the textile fabric, thereby avoiding the current deficiency of not detecting and analyzing the weft latitude and diagonal latitude of the textile fabric, and more comprehensively reflects the tensile strength characteristics of the textile fabric, thereby improving the timeliness of the discovery of potential quality defects and further improving the durability of the textile fabric.

[0124] G2. According to the tear strength information of textile fabrics, calculate the tear strength qualified index of textile fabrics .

[0125] Furthermore, the statistical tear strength qualified index of the textile fabric includes: G2-1, extracting the maximum tear strength of the textile fabric in the warp direction from the tear strength information of the textile fabric, recorded as .

[0126] It should be added that the maximum tear strength of textile fabrics is obtained by testing with a pendulum tear tester. Its specific working process is: during the swing of the pendulum, the angle of the pendulum swing is measured by an angle sensor installed on the pendulum shaft. When the pendulum is released, it tears the textile fabric sample fixed on the fixture, and the angle change of the pendulum is recorded in real time by the angle sensor. According to the mass of the pendulum, the length of the pendulum arm and the angle change, the tearing force applied to the sample can be calculated by a specific mechanical formula. For example, assuming that the mass of the pendulum is 1kg, the length of the pendulum arm is 30cm, and the pendulum swings from 0° to 60° during the tearing process, the corresponding tearing force can be calculated by the formula. In one test, the maximum tearing force calculated is 50N, which is used as the maximum tear strength of the textile fabric with maximum tear strength.

[0127] G2-2. Statistical analysis of warp tearing deviation of textile fabrics , , The standard tear strength for setting reference.

[0128] It should be added that It is extracted from the technical specification table of automated segmented testing of textile fabric strength.

[0129] In a specific embodiment, the maximum tear strength of the textile fabric in the warp direction is , standard tear strength , then the warp tearing deviation of the textile fabric is .

[0130] G2-3. Statistical analysis of the warp tearing index of textile fabrics , , To set the reference warp tear deviation.

[0131] It should be added that It is extracted from the technical specification table of automated segmented testing of textile fabric strength.

[0132] G2-4. Extract the maximum tear strength of weft tear and diagonal tear of textile fabrics from the tear strength information of textile fabrics, according to The statistical method is similar to that of the textile fabric to obtain the weft tearing qualified index and the oblique tearing qualified index, and they are recorded as and .

[0133] G2-5, , and The average value is calculated and the result is used as the tear strength qualification index of the textile fabric and recorded as .

[0134] G3. According to the bursting strength information of textile fabrics, calculate the bursting strength qualified index of textile fabrics .

[0135] Furthermore, the statistical bursting strength qualified index of the textile fabric includes: G3-1, extracting the maximum bursting strength of the textile fabric from the bursting strength information of the textile fabric.

[0136] It should be added that the maximum bursting strength of the textile fabric is detected by a pressure sensor installed between the bursting actuator and the textile fabric.

[0137] G3-2, according to The bursting strength qualified index of textile fabrics is obtained by the same statistical method, which is recorded as .

[0138] G4. Statistical strength index of textile fabrics , , , and are the weights of the set tensile strength qualified index, tear strength qualified index and bursting strength qualified index, respectively. , .

[0139] It should be added that tensile force frequently appears in various application scenarios, and tensile strength has a great influence on the performance and service life of textile fabrics, so the tensile strength qualified index should be given a higher weight. Tear strength mainly reflects the ability of textile fabrics to resist tearing when they are locally subjected to concentrated force, but the prevalence of tearing is less than that of stretching, so the weight of tensile strength qualified index is greater than that of tear strength qualified index. Bursting strength mainly refers to the resistance of textile fabrics to concentrated force perpendicular to their plane. This force condition is relatively special and is not as common as tensile force in various usage scenarios. Therefore, it is set , in order to facilitate analysis, The specific value can be 0.5. The specific value can be 0.3. The specific value can be 0.2.

[0140] The embodiment of the present invention performs segmented detection and analysis on the strength of textile fabrics according to tensile strength, tear strength and bursting strength, thereby breaking the current deficiency of not performing segmented detection on textile fabrics, improving the accuracy of tensile strength analysis of textile fabrics, and further improving the accuracy of the analysis results of the tensile strength qualification index of textile fabrics, thereby improving the overall safety of textile fabrics.

[0141] The cloth feedback terminal is used to provide corresponding feedback according to the control information of the textile cloth strength detection equipment, the control information of the textile cloth placement and the strength qualification index.

[0142] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A textile cloth strength automatic segmented detection system, characterized by: The system includes: Cloth equipment detection module, used to detect the equipment information of textile cloth strength detection equipment; The cloth equipment analysis module is used to analyze the qualified index of the textile cloth strength testing equipment according to the equipment information of the textile cloth strength testing equipment; The cloth equipment control module is used to perform cloth equipment control analysis according to the qualified index of the textile cloth strength testing equipment to obtain the control information of the textile cloth strength testing equipment; A cloth placement detection module is used to place textile cloth in a detection area and detect placement information of the textile cloth; The cloth placement analysis module is used to analyze the placement qualification index of the textile cloth according to the placement information of the textile cloth; The cloth placement control module is used to perform cloth placement control analysis according to the placement qualification index of the textile cloth to obtain the control information of the textile cloth placement; Fabric strength detection module, used to detect the strength information of textile fabrics, including tensile strength information, tear strength information and bursting strength information; The cloth strength analysis module is used to analyze the strength qualification index of the textile cloth according to the strength information of the textile cloth; The cloth feedback terminal is used to provide corresponding feedback based on the control information of the textile cloth strength detection equipment, the control information of the textile cloth placement and the strength qualification index.

2. The automatic segmented testing system for textile fabric strength according to claim 1 is characterized by: The qualified index of the analysis of textile cloth strength testing equipment includes: Extract the clamping force of each clamp detection point when the clamp is clamped from the equipment information of the textile cloth strength testing equipment; The clamping force of each clamp detection point when the clamp is tightened is subtracted from the clamping force of the set reference to obtain the clamping force deviation value of each clamp detection point. If the clamping force deviation value of a clamp detection point is within the clamping deviation value interval of the set reference, the clamp detection point is recorded as a qualified clamp detection point. The number of qualified clamp detection points is counted, and the ratio of the qualified clamp detection point to the number of clamp detection points is used as the qualified index of the clamp clamping force of the textile cloth strength testing equipment, recorded as ; The linear deviation of each measuring point on the guide rail is extracted from the equipment information of the textile cloth strength testing equipment, and the average linear deviation of the guide rail is obtained by calculating the average linear deviation, which is recorded as , and extract the maximum straight line deviation from it, recorded as ; Statistics on guide rail linear deviation qualified index of textile fabric strength testing equipment , , To set the reference straight line deviation; Extract the speed of the slider at each slider detection point from the equipment information of the textile cloth strength detection equipment, and subtract it from the set reference speed to obtain the speed difference of the slider at each slider detection point; The speed difference of the slider at each slider detection point is compared with the set reference speed difference. If the speed difference of the slider at a slider detection point is less than or equal to the set reference speed difference, the slider detection point is recorded as a speed qualified slider detection point. The number of speed qualified slider detection points is counted, and the ratio of the speed qualified slider detection points to the number of slider detection points is used as the slider speed qualified index of the textile cloth strength testing equipment, recorded as ; Statistics on the equipment qualification index of textile fabric strength testing equipment , .

3. The automatic segmented testing system for textile fabric strength according to claim 2 is characterized by: The cloth equipment control analysis includes: When the equipment qualification index of the textile cloth strength testing equipment is greater than or equal to the set reference equipment qualification index, the textile cloth placement test is performed as the control information of the textile cloth strength testing equipment; When the equipment qualification index of the textile fabric strength testing equipment is less than the set reference equipment qualification index, if , the fixture is regarded as an unqualified part of the textile fabric strength testing equipment. To set the qualified index of clamping force of the reference fixture; like , the guide rail is regarded as an unqualified part of the textile cloth strength testing equipment. To set the reference guide rail linear deviation qualified index; like , the slider is regarded as an unqualified part of the textile fabric strength testing equipment. To set the reference slider speed qualification index; The unqualified parts of the textile cloth strength testing equipment and the early warning instructions of the corresponding unqualified parts are used as the control information of the textile cloth strength testing equipment.

4. The automatic segmented testing system for textile fabric strength according to claim 1 is characterized by: The analysis of the placement qualification index of the textile fabric includes: H1. Extract the height difference between each measuring point in the textile fabric and the ideal plane from the placement information of the textile fabric, denoted as , Number the measurement points. ; H2. Statistical flatness of textile fabrics , , is the number of measurement points; H3, extracting the number of wrinkles in the textile cloth detection image, the area of ​​each wrinkle, and the area of ​​the textile cloth detection region from the placement information of the textile cloth; H4. Sum the areas of all folds to get the total area of ​​folds, recorded as , and the textile fabric detection area is recorded as ; H5, record the number of folds as , count the wrinkles of textile fabrics , , and They are the reference fold area ratio and the allowed fold number, respectively; H6. Statistics on the placement qualification index of textile fabrics , , and Set the flatness and wrinkle degree of the reference respectively.

5. The automatic segmented testing system for textile fabric strength according to claim 4 is characterized by: The cloth placement control analysis comprises: When the placement qualification index of the textile cloth is greater than or equal to the set reference placement qualification index, the textile cloth strength detection is performed as the control information of the textile cloth placement; When the placement qualification index of the textile cloth is less than the set reference placement qualification index, the placement of the textile cloth is adjusted as the control information of the placement of the textile cloth.

6. The automatic segmented testing system for textile fabric strength according to claim 1 is characterized by: The strength qualification index of the textile fabrics is analyzed, including: G1. Extract the warp stretch information, weft stretch information and diagonal stretch information of the textile fabric from the tensile strength information of the textile fabric, and then calculate the tensile strength qualified index of the textile fabric ; G2. According to the tear strength information of textile fabrics, calculate the tear strength qualified index of textile fabrics ; G3. According to the bursting strength information of textile fabrics, calculate the bursting strength qualified index of textile fabrics ; G4. Statistical strength index of textile fabrics , , , and are the weights of the set tensile strength qualified index, tear strength qualified index and bursting strength qualified index, respectively. , .

7. The automatic segmented testing system for textile fabric strength according to claim 6 is characterized by: The statistical tensile strength qualified index of textile fabrics includes: Extract the stretch length of the textile fabric under each set warp stretch force from the warp stretch information of the textile fabric, and then calculate the warp tensile strength qualification index of the textile fabric ; According to the weft stretch information and diagonal stretch information of the textile fabric, The qualified index of the weft tensile strength and the qualified index of the oblique tensile strength of the textile fabric are obtained by the same analysis method, and are recorded as and ; Statistics on the tensile strength qualification index of textile fabrics , , , and are the weights of the set qualified indexes of warp tensile strength, weft tensile strength and diagonal tensile strength, respectively. , .

8. The automatic segmented testing system for textile fabric strength according to claim 7, characterized in that: The statistical textile fabric warp tensile strength qualified index includes: Subtracting the stretched length of the textile fabric under each set warp stretching force from the set stretched length to obtain the stretched length difference of the textile fabric under each set warp stretching force; If the stretch length difference under a certain set warp stretch force is less than or equal to the set reference stretch length difference, the stretch length under the set warp stretch force is recorded as the qualified stretch length, the number of qualified stretch lengths is counted, and the ratio of the qualified stretch length to the number of stretch lengths is used as the warp stretch qualified index of the textile fabric, recorded as ; The initial light intensity of the stretched light transmission detection of the textile fabric under each set warp stretch force and the light intensity after passing through the textile fabric are extracted from the warp stretch information of the textile fabric and recorded as and , To set the warp tensile force number, ; Statistical analysis of light transmittance of textile fabrics at various warp tensile forces , ; Statistics on the warp tensile light transmittance index of textile fabrics , , For the The reference transmittance under a set longitudinal tensile force is is the number of tensile forces in the warp direction; from and The minimum value is selected as the qualified index of the warp tensile strength of the textile fabric, which is recorded as .

9. The automatic segmented testing system for textile fabric strength according to claim 6, characterized in that: The statistical tear strength qualified index of textile fabrics includes: The maximum tear strength of the textile fabric in the warp direction is extracted from the tear strength information of the textile fabric and recorded as ; Statistical analysis of warp tearing deviation of textile fabrics , , To set the standard tear strength for reference; Statistics on the warp tearing index of textile fabrics , , To set the reference warp tear deviation; The maximum tear strength of weft tear and diagonal tear of textile fabrics is extracted from the tear strength information of textile fabrics. The statistical method is similar to that of the textile fabric to obtain the weft tearing qualified index and the oblique tearing qualified index, and they are recorded as and ; Will , and The average value is calculated and the result is used as the tear strength qualification index of the textile fabric and recorded as .

10. The automatic segmented testing system for textile fabric strength according to claim 9, characterized in that: The statistical bursting strength qualified index of textile fabrics includes: Extracting the maximum bursting strength of textile fabrics from the bursting strength information of textile fabrics; according to The bursting strength qualified index of textile fabrics is obtained by the same statistical method, which is recorded as .

Images