Detection method and system of automatic template sewing machine

Abstract

The invention relates to a detection method and system of an automatic template sewing machine, and relates to the technical field of sewing machines. Identifying an overlapping position and a cloth type from the cloth transportation image; comparing the cloth transportation image with a preset reference transportation image to obtain an overlapping area; responding to the overlapping area and the cloth type to obtain the cloth weight; air blowing parameters are obtained through the cloth weight and the overlapping position; obtaining thread residue generation parameters according to the blowing parameters, the cloth type and the cloth transportation image; and controlling a preset air blowing device to blow air to the overlapping position according to the air blowing parameters, and processing the thread residues based on a preset thread residue processing method and the thread residue generation parameters. The automatic template sewing machine has the effect of improving the yield of cloth sewn by the automatic template sewing machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewing machines, in particular to a detection method and system of an automatic template sewing machine. BACKGROUND

[0002] The automatic template sewing machine is a special sewing device integrating digital programming, template positioning and automatic sewing functions.

[0003] In the process of sewing the cloth by the automatic template sewing machine, the template is cut to the desired sewing track, and the cloth is transported to the template, the presser foot on the template fixes the cloth, and the automatic template sewing machine sews according to the parameters input by the user. When the cloth transported to the template underlies each other, the automatic template sewing machine needs to be manually paused and the cloth needs to be flattened before it can continue to run.

[0004] When the cloth transported to the template underlies each other, it is easy to have an inattentive situation by manually checking the flatness of the cloth, which leads to errors in sewing the cloth by the automatic template sewing machine. SUMMARY

[0005] In order to improve the yield of the cloth sewn by the automatic template sewing machine, the present application provides a detection method and system of an automatic template sewing machine.

[0006] In the first aspect, the present application provides a detection method of an automatic template sewing machine, which adopts the following technical scheme: A detection method of an automatic template sewing machine, comprising: S10: collecting a cloth transportation image; S11: identifying an overlapping position and a cloth type from the cloth transportation image; S12: comparing the cloth transportation image with a preset reference transportation image to obtain an overlapping area; S13: obtaining a cloth weight in response to the overlapping area and the cloth type; S14: obtaining a blowing parameter through the cloth weight and the overlapping position; S15: obtaining a thread end generation parameter according to the blowing parameter, the cloth type and the cloth transportation image; S16: controlling a preset blowing device to blow the overlapping position at the blowing parameter, and processing the thread end based on a preset thread end processing method and the thread end generation parameter.

[0007] By adopting the technical scheme, the overlapping area and the cloth weight and the overlapping position are obtained by comparing the cloth transportation image with the reference transportation image, the blowing parameter is obtained according to the overlapping area and the cloth weight, the overlapping position is blown, the thread end generated by the thread end processing method is processed, so that the cloth can be automatically blown and flattened, and the thread end generated by blowing on the cloth can be automatically processed, the influence of the thread end on the automatic template sewing machine is reduced, and the yield rate of the automatic template sewing machine is further improved.

[0008] Optionally, the blowing parameter verification method comprises: S20: collecting a sewing parameter; S21: obtaining a thread end influence value by the sewing parameter and the cloth type; S22: obtaining an allowable generation parameter according to the thread end influence value; S23: obtaining a surface thread end parameter by the cloth type and the blowing parameter; S24: obtaining a parallel tangential force according to a preset unit change angle and the blowing parameter; S25: obtaining a contact area according to the parallel tangential force and the surface thread end parameter; S26: obtaining a friction force by the contact area, a reference normal force and the surface thread end parameter; S27: obtaining a blowing power and a blowing angle according to the friction force and the allowable generation parameter, and updating the blowing parameter based on the blowing power and the blowing angle.

[0009] Optionally, the method for obtaining the contact area comprises: S30: obtaining a thread end curl degree and a thread end length from the surface thread end parameter; S31: obtaining an estimated curling number by the thread end length and the thread end curl degree; S32: obtaining a parallel resistance according to the estimated curling number and the surface thread end parameter; S33: obtaining the contact area based on the parallel resistance and the parallel tangential force.

[0010] Optionally, the method for obtaining the thread end generation parameter comprises: S40: obtaining a blowing strength from the blowing parameter; S41: collecting a cloth use function when the blowing strength is greater than a preset reference strength; S42: identifying a yarn twist and a fiber density from the cloth transportation image; S43: obtaining a fabric density by the cloth use function, the yarn twist and the fiber density; S44: obtaining a textile process based on a preset detection method; S45: obtaining an interweaving point number by combining the textile process and the fabric density; S46: The parameters for generating the thread end are obtained by using the number of interlacing points and the blowing parameters.

[0011] Optionally, the detection methods include: S50: Obtain array points and fabric structure based on fabric transport images; S51: Stretch the fabric at a preset detection distance, re-acquire the fabric transport image, and update the array points; S52: Obtain the moving distance based on the array points before and after the update, and collect the rebound force; S53: Retrieve yarn deformation coefficient from fabric type; S54: The number of yarns is obtained by using the rebound force, the moving distance, and the yarn deformation coefficient; S55: Obtain yarn density based on yarn quantity and fabric transport image; S56: Combining yarn density and fabric structure to obtain textile processes.

[0012] Optional methods for handling thread ends include: S60: When the line end generation parameters exceed the preset baseline generation parameters, acquire the marked image of the line end; S61: Update the labeled image based on the detection method; S62: Obtain the location of the fiber knot by updating the marked images before and after; S63: Acquire illuminated images by measuring the fiber knot location; S64: Identify the shadow range of fiber knot locations from the illuminated image; S65: Tightness is determined based on the shaded area and thread end generation parameters; S66: Based on the tightness and fiber knot position, the lifting parameters are obtained, and the preset lifting device is controlled to operate according to the lifting parameters.

[0013] By adopting the above technical solution, when the thread end generation parameters exceed the preset benchmark generation parameters, the fiber knots inside the thread end are analyzed to obtain a illuminated image of the fiber knot position. The tightness of the fiber knot is known from the shadow range in the illuminated image. Based on the tightness and the position of the fiber knot, the lifting parameters are obtained and the lifting device is controlled to operate. This allows the thread end with fiber knots to be pushed into the fabric, reducing the obstruction of the exposed thread end to the automatic template sewing machine when feeding the fabric, and improving the sewing efficiency of the automatic template sewing machine.

[0014] Optionally, methods for obtaining the jacking parameters include: S70: Preload is obtained through sewing parameters; S71: Surface preload resistance is obtained based on preload and fabric type; S72: The range of fiber knots is obtained based on the tightness and thread end generation parameters; S73: The extrusion position is determined based on the textile process and sewing parameters; S74: The lifting force is obtained based on the surface pre-tightening resistance and the fiber knot range, and the extrusion position, lifting force and fiber knot position are defined as lifting parameters.

[0015] Optional, also includes: S80: Based on tightness to determine the force to withstand; S81: When the lifting force is greater than the bearing force, the difference between the lifting force and the bearing force is calculated as the supplementary force. S82: Supplemental friction is obtained by supplementing force; S83: Electrostatic power is obtained by supplementing frictional force; S84: The heating temperature is obtained based on the electrostatic power; S85: Response to heating temperature and fabric type to obtain fiber friction coefficient; S86: Update electrostatic power based on fiber friction coefficient and add electrostatic power to lifting parameters.

[0016] By adopting the above technical solution, the lifting device is controlled to operate with electrostatic power to adsorb the fibers around the fiber knot to improve the strength of the fiber knot, so that the lifting device can lift the fiber knot into the fabric.

[0017] Optional, also includes: S90: Based on surface preload resistance and fabric type to achieve maximum access range; S91: When the fiber knot range is greater than the maximum entry range, the deviation range is obtained by comparing the maximum entry range with the fiber knot range. S92: Obtain the shrinkage density by controlling the deviation range; S93: When the yarn density is less than the shrinkage density, the electrostatic power is renewed by shrinking the density.

[0018] Secondly, this application provides a detection system for an automatic template sewing machine, which adopts the following technical solution: An inspection system for an automatic template sewing machine, comprising: The acquisition module is used to acquire images of the fabric being transported. A memory for storing a program for a detection method of an automatic template sewing machine; The processor is used to load and execute programs stored in memory.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. By comparing the fabric transport image with the baseline transport image, the overlapping area, fabric weight, and overlapping position are obtained. Based on the overlapping area and fabric weight, the blowing parameters are obtained, and the overlapping position is blown. Then, the thread ends generated by the thread end processing method are processed, thereby automatically blowing and flattening the fabric and automatically processing the thread ends generated by the blowing, reducing the impact of thread ends on the automatic template sewing machine, and further improving the yield rate of the automatic template sewing machine. 2. When the thread end generation parameters exceed the preset baseline generation parameters, the fiber knots inside the thread end are analyzed to obtain a light image of the fiber knot position. The tightness of the fiber knot is known from the shadow range in the light image. Based on the tightness and the position of the fiber knot, the lifting parameters are obtained and the lifting device is controlled to operate. This allows the thread end with the fiber knot to be pushed into the fabric, reducing the obstruction of the exposed thread end when the automatic template sewing machine is feeding the fabric, and improving the sewing efficiency of the automatic template sewing machine. 3. By controlling the lifting device to operate with electrostatic power to adsorb fibers around the fiber knot to increase the strength of the fiber knot, the lifting device can lift the fiber knot into the fabric. Attached Figure Description

[0020] Figure 1 This is a flowchart of a detection method for an automatic template sewing machine according to an embodiment of the present invention; Figure 2 This is a flowchart of the thread end processing method according to an embodiment of the present invention; Figure 3 This is a flowchart of the method for obtaining lifting parameters according to an embodiment of the present invention. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Reference Figure 1 This application discloses a detection method for an automatic template sewing machine, comprising the following steps: S10: Acquire images of fabric transportation.

[0023] Fabric transport images refer to images of fabric being transported on an automatic template sewing machine. These images can be captured by a camera.

[0024] S11: Identify overlapping locations and fabric types from fabric transport images.

[0025] The overlapping position refers to the location where the fabric overlaps during transportation, and the fabric type refers to the type of fabric on the automatic template sewing machine. Fabric type includes fiber material, fiber density, and yarn processing (twist, tension), etc. The overlapping position and fabric type are identified from images of the fabric being transported. Methods for identifying overlapping positions and fabric types from images are common knowledge to those skilled in the art and will not be elaborated upon here.

[0026] S12: Compare the fabric transport image with the preset baseline transport image to obtain the overlapping area.

[0027] The reference transport image is a picture of the fabric being transported on an automatic template sewing machine under normal conditions, as set by the technicians. The overlapping area refers to the area where the fabric overlaps during transport. The overlapping area is obtained by comparing the color difference between the fabric transport image and the reference transport image. The method for obtaining the overlapping area through image comparison is common knowledge to those skilled in the art and will not be elaborated upon here.

[0028] S13: Response to overlap area and fabric type to obtain fabric weight.

[0029] Fabric weight refers to the mass of the overlapping area of ​​fabric within the current transportation area. It is calculated by considering the fabric's density, overlapping area, and number of layers. In this embodiment, the number of layers typically to be blown is two.

[0030] S14: Obtain the blowing parameters by measuring the fabric weight and overlapping position.

[0031] The air blower is an air gun or fan set by the technician. Air blowing parameters refer to the parameters controlling the operation of the air blower. The required air blowing force is obtained based on the weight of the fabric, and the air blowing force corresponds to the air blowing power. The air blowing power and direction are defined as the air blowing parameters, determined by the preset installation position of the air blower towards the overlapping area. In this embodiment, during the air blowing process, the air blower blows air close to the normal direction of the overlapping layers.

[0032] S15: Obtain thread generation parameters based on air blowing parameters, fabric type, and fabric transport image.

[0033] Thread formation parameters refer to the parameters of thread ends generated when fabric is exposed to airflow. These parameters include thread size, crimp, and the number of thread ends generated per unit area of ​​fabric. The analysis methods for thread formation parameters are common knowledge to those skilled in the art and will not be elaborated upon here.

[0034] S16: Control the preset blowing device to blow air onto the overlapping position with blowing parameters, and process the wire ends based on the preset wire end processing method and wire end generation parameters.

[0035] The thread end treatment method refers to the method used to treat loose threads on fabric. It involves controlling a blower to blow air onto overlapping areas at specified parameters, and then using the thread end treatment method to remove the loose threads after the blowing process is complete.

[0036] Methods for verifying blower parameters include: S20: Collect sewing parameters.

[0037] Sewing parameters refer to the parameters that users need to control the operation of an automatic template sewing machine, which can be obtained after being pre-input by the operator.

[0038] S21: Obtain the thread end effect value by using sewing parameters and fabric type.

[0039] The thread end influence value refers to the coefficient value by which the thread end affects the automatic template sewing machine. This value is determined by matching the thread end influence value from a preset fabric reference table. The fabric reference table stores the thread end influence values ​​corresponding to different sewing parameters and fabric types. The parameters in the fabric reference table are pre-set experimentally by those skilled in the art based on actual conditions and will not be elaborated upon here.

[0040] S22: Obtain the permissible generation parameters based on the influence value of the thread end.

[0041] The permissible generation parameter refers to the maximum parameter that the thread end is allowed to produce on the fabric surface. The permissible generation parameter is obtained by matching the thread end influence value from the fabric reference table.

[0042] The fabric comparison table stores the allowable generation parameters corresponding to different thread impact values ​​under the same fabric type. The larger the thread impact value, the more threads are allowed to be generated on the fabric, and the larger the allowable generation parameter is. This will not be elaborated here.

[0043] S23: Obtain the surface thread parameters by using the fabric type and blowing parameters.

[0044] Surface thread parameters refer to the parameters that result in loose threads appearing on the surface of the fabric when it is exposed to airflow. These parameters are obtained by analyzing the fabric type and airflow parameters. The methods for analyzing surface thread parameters are common knowledge to those skilled in the art and will not be elaborated upon here.

[0045] S24: Obtain parallel tangential force based on preset unit change angle and blowing parameters.

[0046] The unit angle of change refers to the tilting deviation of the airflow when it vertically blows across the overlapping fabric surfaces, as set by the technician. The parallel tangential force refers to the thrust component generated by the airflow along the fabric surface on the thread ends. This parallel tangential force is obtained by analyzing the force components of the unit angle of change and the blowing parameters. The method for analyzing the parallel tangential force is common knowledge to those skilled in the art and will not be elaborated here. In this embodiment, when the tilting angle of the blowing changes, the normal force of the airflow vertically blowing across the overlapping fabric surfaces remains unchanged. Therefore, the blowing power needs to be increased according to the change in the unit angle of change, which will not be elaborated here.

[0047] S25: The contact area is obtained based on the parallel tangential force and the surface wire end parameters.

[0048] The contact area refers to the area of ​​contact between the thread end and the fabric surface when the thread end is pushed by a parallel tangential force. The contact area is obtained by analyzing the parallel tangential force and the parameters of the surface thread end.

[0049] S26: Frictional force is obtained through contact area, reference normal force, and surface thread parameters.

[0050] Friction refers to the frictional force between the thread end and the fabric surface. It is calculated by retrieving the coefficient of friction of the outer layer of the thread end from the surface thread parameters, updating the coefficient of friction based on the contact area, and then calculating the frictional force using the reference normal force and the coefficient of friction. The calculation process of friction is common knowledge to those skilled in the art and will not be elaborated here.

[0051] S27: Obtain the blowing power and blowing angle based on the friction force and allowable generation parameters, and update the blowing parameters based on the blowing power and blowing angle.

[0052] The blowing power refers to the power of the airflow required to generate the allowable thread ends on the fabric, while the blowing angle refers to the angle of the airflow required to generate the allowable thread ends on the fabric. The blowing power and blowing angle are matched from the fabric reference table using friction and allowable thread ends, and then the power and angle in the blowing parameters are replaced accordingly.

[0053] The fabric comparison table also stores the blowing power and blowing angle corresponding to different friction forces and allowable generation parameters. When the allowable generation parameters remain unchanged, the greater the friction force, the greater the force that the thread ends exert to prevent the fabric from being stretched by the blowing, and the less thread ends are generated. The larger the blowing angle, the greater the blowing power, which will not be elaborated here.

[0054] Methods for obtaining the contact area include: S30: Retrieve the curl and length of the thread ends from the surface thread end parameters.

[0055] Thread curl refers to the degree of natural curvature of the thread ends produced on the surface of the fabric, while thread length refers to the length of the thread ends produced on the surface of the fabric.

[0056] S31: The estimated number of curls is obtained by measuring the length and curvature of the thread end.

[0057] The estimated number of curls refers to the number of curls that appear on a single thread end. This estimated number of curls is determined by matching the thread end length and curl degree from a fabric reference table. The fabric reference table stores the estimated number of curls corresponding to different thread end lengths and curl degrees. The longer the thread end and the greater the curl degree, the higher the estimated number of curls; this will not be elaborated upon further here.

[0058] S32: Obtain parallel resistance based on the estimated number of curls and surface thread parameters.

[0059] Parallel resistance refers to the resistance force generated by the curling of the thread ends when the airflow pushes the thread ends along the fabric surface. The parallel resistance is determined by retrieving the density of the curling of the straight thread ends from the surface thread end parameters and matching the density with the estimated number of curls from the fabric reference table. The fabric reference table also stores the parallel resistance corresponding to the density and the estimated number of curls of different fabrics. The higher the density and the greater the estimated number of curls, the greater the parallel resistance. This will not be elaborated on here.

[0060] S33: The contact area is obtained based on parallel resistance and parallel tangential force.

[0061] The contact area is obtained by analyzing the parallel resistance and parallel tangential force. The greater the parallel tangential force, the greater the degree of curling and stretching of the thread end, and the greater the contact area between the thread end and the fabric surface. The method for analyzing the contact area is common knowledge to those skilled in the art and will not be elaborated here.

[0062] Methods for obtaining the parameters for generating the thread end include: S40: Select the blowing power from the blowing parameters.

[0063] The blowing force refers to the force exerted by the airflow generated by the blowing device on the fabric surface. The blowing force is obtained by adjusting the blowing parameters.

[0064] S41: When the blowing force is greater than the preset reference force, the fabric sampling function is activated.

[0065] The baseline force is the minimum force exerted on the fabric surface by the airflow caused by the breakage of fabric fibers, as set by the technicians.

[0066] Fabric usage function refers to the design purpose and performance requirements of the fabric. When the blowing force is greater than the reference force, it indicates that the fabric is prone to producing loose threads. The fabric usage function can be obtained by the operator through pre-input.

[0067] S42: Identify yarn twist and fiber density from fabric transport images.

[0068] Yarn twist refers to the number of times the yarn is twisted per unit length of fabric, while fiber density refers to the mass of fibers per unit volume of fabric. Yarn twist and fiber density are identified from fabric transport images. Methods for identifying yarn twist and fiber density from images are common knowledge to those skilled in the art and will not be elaborated upon here.

[0069] S43: Fabric density is obtained by considering the fabric's functional use, yarn twist, and fiber density.

[0070] Fabric density refers to the number of yarns arranged per unit area. The fabric density is determined by matching the fabric usage function, yarn twist, and fiber density from a fabric reference table. The fabric reference table also stores the fabric densities corresponding to different fabric usage functions, yarn twist, and fiber densities. The smaller the yarn twist, the larger the fiber density, and the larger the fabric density. The fabric usage function is used to correct the calculation results (e.g., for high-density waterproof fabrics, it is necessary to multiply by the corresponding coefficient value, which is preset by those skilled in the art), which will not be elaborated here.

[0071] In this embodiment, the variations in yarn twist, fiber density, and fabric density are limited by the fabric manufacturing process, and will not be elaborated here.

[0072] S44: Based on a preset detection method, the textile process is obtained.

[0073] The testing method refers to actively stretching the fabric to test the fabric weave and yarn density.

[0074] Textile technology refers to the weaving method and structure of fabric. The textile technology is obtained by testing the fabric through testing methods.

[0075] S45: Combine textile processes and fabric density to obtain the number of interlacing points.

[0076] The number of interlacing points refers to the number of times warp and weft yarns intersect within a unit area. The number of interlacing points is determined by matching the textile process and fabric density from a fabric reference table. The fabric reference table also stores the number of interlacing points corresponding to different textile processes and fabric densities. The textile process determines the cross ratio of warp and weft yarns. The higher the fabric density, the greater the number of interlacing points, which will not be elaborated here.

[0077] S46: The parameters for generating the thread end are obtained by using the number of interlacing points and the blowing parameters.

[0078] The thread generation parameters are matched from the fabric reference table by the number of interlacing points and the blowing parameters. The fabric reference table also stores the thread generation parameters corresponding to different numbers of interlacing points and blowing parameters. The larger the number of interlacing points, the more threads the fabric generates and the larger the thread generation parameters will be, with the blowing parameters remaining unchanged. This will not be elaborated on here.

[0079] The detection methods include: S50: Obtain array points and fabric structure based on fabric transport images.

[0080] Array points refer to the feature reference points marked in the fabric transport image. They can be set by the operator on the fabric in the fabric transport image. The spacing between array points is set by the operator in advance, which will not be elaborated here.

[0081] Fabric structure refers to the interlacing pattern of warp and weft yarns. Fabric structures include plain weave, twill weave, and satin weave, etc. Fabric structure can be identified from fabric transport images.

[0082] S51: Stretch the fabric at a preset detection distance, re-acquire the fabric transport image, and update the array points.

[0083] The detection distance refers to the distance set by the technician for stretching the fabric. In this embodiment, the detection distance does not damage the fabric. The fabric is stretched at the detection distance using a mechanical gripper mounted on an automatic template sewing machine, and the fabric transport image is re-acquired and the array points are updated.

[0084] S52: Based on the array points before and after the update, obtain the moving distance and collect the rebound force.

[0085] The movement distance refers to the actual displacement difference of the same array point on the fabric surface before and after the fabric is stretched. It is the straight-line distance moved by the array point before and after the update. The rebound force refers to the reverse force that causes the fabric to return to its original shape after stretching. It is the parameter detected by the rebound displacement sensor preset on the mechanical gripper.

[0086] S53: Retrieve yarn deformation coefficient from fabric type.

[0087] The yarn deformation coefficient refers to the deformation of a single yarn under unit tension. It is obtained by retrieving the yarn deformation coefficient from the fabric type.

[0088] S54: The number of yarns is obtained by using the rebound force, the movement distance, and the yarn deformation coefficient.

[0089] The number of yarns refers to the effective number of yarns involved in the stretching deformation of the fabric. The number of yarns is matched from the fabric reference table by the rebound force, the movement distance, and the yarn deformation coefficient. The fabric reference table also stores the number of yarns corresponding to different rebound forces, movement distances, and yarn deformation coefficients. When the yarn deformation coefficient remains unchanged, the greater the rebound force and the smaller the movement distance, the greater the number of yarns. This will not be elaborated on here.

[0090] S55: The yarn density is obtained based on the yarn quantity and the fabric transport image.

[0091] Yarn density refers to the number of warp and weft yarns in a fabric along its length. It is determined by identifying the unit length of the fabric from a fabric transport image and calculating the quotient of the number of yarns per unit length.

[0092] S56: Combining yarn density and fabric structure to obtain textile processes.

[0093] Textile processes are obtained by combining yarn density and fabric structure.

[0094] Reference Figure 2 Methods for handling loose threads include: S60: When the line end generation parameters exceed the preset baseline generation parameters, acquire the marked image of the line end.

[0095] The baseline generation parameters are the maximum parameters set by the technician for the thread end that can be cut. In this embodiment, a typical thread end is cut vertically by suction from a thread end cutting device with a negative pressure system, followed by cutting with a rotating blade. When the thread end generation parameters exceed the baseline generation parameters, it indicates that the thread end is difficult to cut, and it is necessary to identify whether there are fiber knots in the thread end.

[0096] A marker image is an image of a thread end on a piece of fabric, captured by a camera.

[0097] S61: Update the labeled image based on the detection method.

[0098] The above detection method is used to reacquire the labeled image.

[0099] S62: Obtain the location of the fiber knot by updating the marked images before and after.

[0100] The fiber knot location refers to the coordinate position where fibers become entangled and knotted in the thread end. Since the thread end is also stretched when the fabric is stretched, the changes in the thread end caused by the tension transmission due to the different fiber knot locations are different. The closer the fiber knot location is to the end of the thread on the fabric, the different the stretching distance of the thread end caused by the tension change. Therefore, the fiber knot location is determined by the position of the tension stretching change point in the marked image before and after the update.

[0101] S63: Acquire a lit image by measuring the location of the fiber knot.

[0102] A lighting image refers to an image of the shadow cast by lighting the end of a fiber knot. The image of the shadow cast by lighting the end of a fiber knot is used as the lighting image.

[0103] S64: Identify the shadow range of the fiber knot location from the illuminated image.

[0104] The shadow range refers to the range of shadows that appear at the location of the fiber knot. Since the location of the fiber knot is the entanglement of fibers, the shadow at the location of the fiber knot has a high gray level. Therefore, the gray level range of the fiber knot location is identified from the illuminated image as the shadow range.

[0105] S65: Tightness is determined based on the shaded area and the line end generation parameters.

[0106] Tightness refers to the tightness of the fibers at the fiber knot. It is determined by matching the shading range with the thread end generation parameters from the fabric reference table. The fabric reference table also stores different shading ranges and thread end generation parameters corresponding to different tightness. With the thread end generation parameters remaining constant, the larger the shading range, the greater the tightness. This will not be elaborated further here.

[0107] S66: Based on the tightness and fiber knot position, the lifting parameters are obtained, and the preset lifting device is controlled to operate according to the lifting parameters.

[0108] The lifting device includes a round needle, a telescopic rod for changing the height of the round needle, a universal joint for changing the angle of the round needle, and a miniature electrostatic generator for generating static electricity in the round needle.

[0109] Lifting parameters refer to the parameters that control the lifting device to lift the fiber knots. The lifting parameters are obtained by analyzing the tightness and position of the fiber knots, and the lifting device is controlled to operate according to the lifting parameters.

[0110] Reference Figure 3 Methods for obtaining jacking parameters include: S70: Preload is obtained through sewing parameters.

[0111] Preload refers to the force with which the template presses the fabric during the sewing process. The preload is matched from the fabric reference table using sewing parameters. The fabric reference table also stores the preload corresponding to different sewing parameters. When the fabric type remains unchanged, the greater the needle force in the sewing parameters, the greater the elasticity of the fabric that can be released, and the smaller the preload. This will not be elaborated on here.

[0112] S71: Surface preload resistance is obtained based on preload and fabric type.

[0113] Surface pretension resistance refers to the reverse resistance generated by the fabric surface against the lifting device due to the pretension force and its own material. The surface pretension resistance is determined by matching the pretension force with the fabric type from a fabric reference table. The fabric reference table also stores surface pretension resistance corresponding to different pretension forces and fabric types. When the fabric type remains unchanged, the greater the pretension force, the greater the surface pretension resistance, which will not be elaborated here.

[0114] S72: The range of fiber knots is obtained based on the tightness and thread end generation parameters.

[0115] The fiber knot range refers to the size of the area covered by the fiber knot at the end of the thread. The fiber knot range is determined by matching the tension and thread generation parameters from the fabric reference table. The fabric reference table also stores the fiber knot ranges corresponding to different tensions and thread generation parameters. With the thread generation parameters remaining unchanged, the greater the tension, the larger the fiber knot range, which will not be elaborated here.

[0116] S73: The extrusion position is obtained based on the textile process and sewing parameters.

[0117] The squeezing position refers to the point where the lifting device lifts the thread end containing the fiber knot to the surface of the fabric. The thread end position is retrieved from the thread end generation parameters, and the position of the gap between the nearest warp or weft yarns around the thread end position is selected. Then, the position of the gap that is farthest from the path in the sewing parameters is selected from the positions of each gap as the squeezing position.

[0118] S74: The lifting force is obtained based on the surface pre-tightening resistance and the fiber knot range, and the extrusion position, lifting force and fiber knot position are defined as lifting parameters.

[0119] Lifting force refers to the force exerted by the lifting device on the fiber knot. It is obtained by analyzing the layer preload resistance and the fiber knot range, and the compression position, lifting force, and fiber knot position are defined as lifting parameters. The fiber knot range is the size of the warp or weft yarn that needs to be opened due to the surface preload resistance. The larger the fiber knot range, the larger the opening range, therefore the greater the surface preload resistance, and the greater the required lifting force. The method for analyzing lifting force is common knowledge to those skilled in the art and will not be elaborated here.

[0120] Also includes: S80: Based on tightness to obtain the strength to withstand.

[0121] The bearing capacity refers to the force that the fiber knot can withstand when lifted by the lifting device. This bearing capacity is determined by matching the tightness of the fiber knot to a pre-set fiber reference table. The fiber reference table stores the bearing capacity corresponding to different tightness levels. The greater the tightness, the greater the bearing capacity. The parameters in the fiber reference table are pre-set experimentally by those skilled in the art based on actual conditions and will not be elaborated upon here.

[0122] S81: When the lifting force is greater than the bearing force, the difference between the lifting force and the bearing force is calculated as the supplementary force.

[0123] The supplementary force refers to the deviation between the lifting force and the bearing force. When the lifting force is greater than the bearing force, it means that the lifting force will damage the fiber knot. Therefore, the difference between the lifting force and the bearing force is calculated as the supplementary force.

[0124] S82: Supplemental friction is obtained by supplementing force.

[0125] Supplemental friction refers to the need to supplement the friction between the round needle tip and the fiber, and the value of the supplemental force is used as the supplemental friction.

[0126] S83: Electrostatic power is obtained based on supplementary frictional force.

[0127] Electrostatic power refers to the power output required by the micro electrostatic generator. It is determined by matching the electrostatic power to a preset electrostatic reference table using supplementary friction. The electrostatic reference table stores the electrostatic power corresponding to different supplementary friction forces. The greater the supplementary friction, the greater the electrostatic power. The parameters in the electrostatic reference table are pre-set experimentally by those skilled in the art based on actual conditions and will not be elaborated upon here. Reference resistivity refers to the resistivity of the fabric surface that can be electrostatically attracted to resist the passage of current. In this embodiment, the fibers electrostatically attracted need to be conductive fibers with a resistivity lower than the reference resistivity or synthetic fibers that have undergone special antistatic treatment. Natural fibers and ordinary synthetic fibers need to be clamped and compacted using mechanical claws.

[0128] S84: The heating temperature is obtained based on the electrostatic power.

[0129] Heating temperature refers to the temperature generated by the micro electrostatic generator on the round needle tip during operation. The heating temperature is obtained by analyzing and calculating the electrostatic power. The method for analyzing and calculating the heating temperature is common knowledge to those skilled in the art and will not be elaborated here.

[0130] S85: Response to heating temperature and fabric type to obtain fiber friction coefficient.

[0131] The fiber friction coefficient refers to the coefficient of friction between fibers due to temperature changes. It is determined by matching the heating temperature with the fabric type from a fiber reference table. The fiber reference table also stores fiber friction coefficients corresponding to different heating temperatures and fabric types. With the fabric type remaining constant, a higher heating temperature results in a higher fiber friction coefficient; this will not be elaborated upon further here.

[0132] S86: Update electrostatic power based on fiber friction coefficient and add electrostatic power to lifting parameters.

[0133] Since an increase in the fiber friction coefficient also increases frictional force, the output of electrostatic power can be reduced. The new electrostatic power is obtained by analyzing the fiber friction coefficient and then incorporated into the lifting parameters. The synergistic calculation of the temperature generated by the electrostatic power and the fiber friction force is common knowledge to those skilled in the art and will not be elaborated upon here.

[0134] Also includes: S90: Based on surface preload resistance and fabric type to achieve maximum access range.

[0135] The maximum entry range refers to the maximum area on the fabric surface that can enter the fiber knots. This maximum entry range is determined by analyzing the surface preload resistance and fabric type. A higher surface preload resistance results in a smaller maximum entry range, which will not be elaborated upon here.

[0136] S91: When the fiber knot range is greater than the maximum entry range, the deviation range is obtained by comparing the maximum entry range with the fiber knot range.

[0137] The deviation range refers to the range of deviation between the maximum entry range and the fiber knot range. When the fiber knot range is greater than the maximum entry range, it means that the fiber knot is not easy to be directly inserted into the fabric surface. Therefore, by performing an overlap analysis on the maximum entry range and the fiber knot range, the non-overlapping range is taken as the deviation range.

[0138] S92: Obtain the shrinkage density by using the deviation range.

[0139] Shrinkage density refers to the density required for the fiber knot to reach its maximum range. The shrinkage density is determined by matching the deviation range from a fiber reference table. The fiber reference table also stores shrinkage densities corresponding to different deviation ranges; the larger the deviation range, the greater the shrinkage density. This will not be elaborated upon here.

[0140] S93: When the yarn density is less than the shrinkage density, the electrostatic power is renewed by shrinking the density.

[0141] When the yarn density is less than the shrinkage density, it means that the area where the fibers can shrink to achieve the maximum entry range for the fiber knots is reduced. Therefore, a new electrostatic power is matched to the electrostatic power table using the shrinkage density. The electrostatic power table stores the electrostatic power corresponding to different shrinkage densities. The higher the shrinkage density, the higher the electrostatic power, which will not be elaborated further here.

[0142] Based on the same inventive concept, embodiments of the present invention provide a detection system for an automatic template sewing machine, comprising: The acquisition module is used to acquire fabric transport images, sewing parameters, fabric usage functions, rebound force, marking images, and lighting images; A memory for storing a program for a detection method of an automatic template sewing machine; The processor is used to load and execute programs stored in memory.

[0143] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0144] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A detection method for an automatic template sewing machine, characterized in that, include: S10: Acquire images of fabric transportation; S11: Identify overlapping locations and fabric types from fabric transport images; S12: Compare the fabric transport image with the preset baseline transport image to obtain the overlapping area; S13: Response to overlap area and fabric type to obtain fabric weight; S14: Obtain the blowing parameters by measuring the weight of the fabric and the overlapping position; S15: Obtain thread generation parameters based on blowing parameters, fabric type, and fabric transport image; S16: Control the preset blowing device to blow air onto the overlapping position with blowing parameters, and process the wire ends based on the preset wire end processing method and wire end generation parameters.

2. The detection method for an automatic template sewing machine according to claim 1, characterized in that, Methods for verifying blower parameters include: S20: Collect sewing parameters; S21: Obtain the thread end effect value by using sewing parameters and fabric type; S22: Obtain the permissible generation parameters based on the influence value of the thread end; S23: Obtain the surface thread parameters by using the fabric type and blowing parameters; S24: Obtain parallel tangential force based on preset unit change angle and blowing parameters; S25: The contact area is obtained based on the parallel tangential force and the surface wire end parameters; S26: Frictional force is obtained through contact area, reference normal force, and surface wire end parameters; S27: Obtain the blowing power and blowing angle based on the friction force and allowable generation parameters, and update the blowing parameters based on the blowing power and blowing angle.

3. The detection method for an automatic template sewing machine according to claim 2, characterized in that, Methods for obtaining the contact area include: S30: Retrieve the curl and length of the thread ends from the surface thread end parameters; S31: The estimated number of curls is obtained by measuring the length and curvature of the thread end; S32: Obtain parallel resistance based on the estimated number of curls and surface thread parameters; S33: The contact area is obtained based on parallel resistance and parallel tangential force.

4. The detection method for an automatic template sewing machine according to claim 2, characterized in that, Methods for obtaining the parameters for generating the thread end include: S40: Adjust the blowing power from the blowing parameters; S41: When the blowing force is greater than the preset reference force, the fabric is collected using the function; S42: Identify yarn twist and fiber density from fabric transport images; S43: Fabric density is obtained by considering the fabric's intended use, yarn twist, and fiber density. S44: Based on a preset detection method, the textile process is obtained; S45: Combine textile technology and fabric density to obtain the number of interlacing points; S46: The parameters for generating the thread end are obtained by using the number of interlacing points and the blowing parameters.

5. The detection method for an automatic template sewing machine according to claim 4, characterized in that, The detection methods include: S50: Obtain array points and fabric structure based on fabric transport images; S51: Stretch the fabric at a preset detection distance, re-acquire the fabric transport image, and update the array points; S52: Obtain the moving distance based on the array points before and after the update, and collect the rebound force; S53: Retrieve yarn deformation coefficient from fabric type; S54: The number of yarns is obtained by using the rebound force, the moving distance, and the yarn deformation coefficient; S55: Obtain yarn density based on yarn quantity and fabric transport image; S56: Combining yarn density and fabric structure to obtain textile processes.

6. The detection method for an automatic template sewing machine according to claim 5, characterized in that, Methods for handling loose threads include: S60: When the line end generation parameters exceed the preset baseline generation parameters, acquire the marked image of the line end; S61: Update the labeled image based on the detection method; S62: Obtain the location of the fiber knot by updating the marked images before and after; S63: Acquire illuminated images by measuring the fiber knot location; S64: Identify the shadow range of fiber knot locations from the illuminated image; S65: Tightness is determined based on the shaded area and thread end generation parameters; S66: Based on the tightness and fiber knot position, the lifting parameters are obtained, and the preset lifting device is controlled to operate according to the lifting parameters.

7. The detection method for an automatic template sewing machine according to claim 6, characterized in that, Methods for obtaining jacking parameters include: S70: Preload is obtained through sewing parameters; S71: Surface preload resistance is obtained based on preload and fabric type; S72: The range of fiber knots is obtained based on the tightness and thread end generation parameters; S73: The extrusion position is determined based on the textile process and sewing parameters; S74: The lifting force is obtained based on the surface pre-tightening resistance and the fiber knot range, and the extrusion position, lifting force and fiber knot position are defined as lifting parameters.

8. The detection method for an automatic template sewing machine according to claim 7, characterized in that, Also includes: S80: Based on tightness to determine the strength to withstand; S81: When the lifting force is greater than the bearing force, the difference between the lifting force and the bearing force is calculated as the supplementary force. S82: Supplemental friction is obtained by supplementing force; S83: Electrostatic power is obtained by supplementing frictional force; S84: The heating temperature is obtained based on the electrostatic power; S85: Response to heating temperature and fabric type to obtain fiber friction coefficient; S86: Update electrostatic power based on fiber friction coefficient and add electrostatic power to lifting parameters.

9. The detection method for an automatic template sewing machine according to claim 8, characterized in that, Also includes: S90: Based on surface preload resistance and fabric type to achieve maximum access range; S91: When the fiber knot range is greater than the maximum entry range, the deviation range is obtained by comparing the maximum entry range with the fiber knot range. S92: Obtain the shrinkage density by controlling the deviation range; S93: When the yarn density is less than the shrinkage density, the electrostatic power is renewed by shrinking the density.

10. A detection system for an automatic template sewing machine, characterized in that, include: The acquisition module is used to acquire images of the fabric being transported. A memory for storing a program that implements a detection method for an automatic template sewing machine as described in any one of claims 1 to 9; The processor is used to load and execute programs stored in memory.

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