Pyrography method and automatic feeding assembly line type pyrography machine

Abstract

The invention relates to a pyrography method and an automatic feeding assembly line type pyrography machine, and relates to the field of garment printing pyrography, the pyrography method comprises the steps that a preset feeding signal is responded, and the feeding signal comprises size information of to-be-pyrography clothes and fabric pattern information corresponding to the to-be-pyrography clothes; acquiring image information of clothes to be pyrograph; analyzing the image information of the to-be-pyrograph clothes to determine a pyrograph area; determining a fold state of the pyrography area based on the pyrography area; when the pyrography area is in a wrinkle state, deflector rod control parameters are generated according to the pyrography area, and a deflector rod device is controlled to execute flattening operation according to the deflector rod control parameters; pyrograph pattern parameters corresponding to the clothes to be pyrograph are obtained; and forming a pyrography scheme according to the pyrography area and the pyrography pattern parameters, and executing pyrography operation according to the pyrography scheme. The device has the effects that the wrinkle state of the pyrography area is detected in real time, automatic adjustment is conducted through the shifting rod device, it is ensured that the surface of pyrography is flat, and therefore the final pyrography quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of garment printing and ironing, and in particular to an ironing method and an automatic feeding assembly line ironing machine. BACKGROUND

[0002] As the core equipment of garment individual customization and batch printing production, the ironing machine is widely used in garment processing plants, cultural and creative gift workshops and other scenes due to its high pattern transfer efficiency and wide material adaptability. The core of the ironing machine is based on heat transfer technology, which transfers the pattern on the transfer medium (such as ironing paper or ironing film) to the surface of the printing object (such as clothes) by accurately controlling temperature, pressure and time.

[0003] With the rapid development of the garment customization industry, the market has put forward higher and higher requirements for the batch production capacity, automation level and product qualification rate of the ironing machine.

[0004] In the process of ironing by the ironing machine according to the related technology, the pulling of the clothes by manual feeding may cause wrinkles on the surface of the clothes, and the ironing of the wrinkled part may directly cause defects such as blurred and broken patterns. After ironing, there may be deviation in the ironing position due to the placement position of the clothes. SUMMARY

[0005] In order to eliminate the influence of wrinkles on the clothes on ironing, the present application provides an ironing method and an automatic feeding assembly line ironing machine.

[0006] In the first aspect, the present application provides an ironing method, which adopts the following technical solution: An ironing method, comprising: Step S1: in response to a preset feeding signal, the feeding signal includes size information of clothes to be ironed and fabric pattern information corresponding to the clothes to be ironed; Step S2: obtaining image information of the clothes to be ironed; Step S3: analyzing the image information of the clothes to be ironed to determine the ironing area; Step S4: determining the wrinkle state of the ironing area based on the ironing area; Step S5: when there is a wrinkle state in the ironing area, generating a lever control parameter according to the ironing area, and controlling the lever device to perform a flattening operation according to the lever control parameter; Step S6: obtaining ironing pattern parameters corresponding to the clothes to be ironed; Step S7: forming an ironing scheme according to the ironing area and the ironing pattern parameters, and performing an ironing operation according to the ironing scheme.

[0007] By adopting the technical scheme, the garment printing quality can be improved by effectively detecting and processing the wrinkle problem of the printing area. In actual application, the method ensures comprehensive understanding of the surface state of the garment through multi-angle image acquisition and analysis. Meanwhile, the push rod device can be accurately operated according to the real-time generated push rod control parameters. In addition, through comprehensive analysis of the printing pattern parameters and the printing area, the system can dynamically adjust the printing scheme to adapt to different garment materials and pattern requirements. This technical scheme not only improves the production efficiency, but also provides a more reliable solution for the garment customization industry.

[0008] Optionally, the method for determining the wrinkle state of the printing area based on the printing area comprises: Step S40: Collecting overhead image information of the printing area, the overhead image information being used to determine the texture feature of the printing area; Step S41: Determining the garment-to-be-printed feature based on the garment-to-be-printed image information; Step S42: Determining the relative position of the printing area according to the garment-to-be-printed feature, the garment-to-be-printed size information and the printing area; Step S43: Determining the predicted printing area texture feature based on the relative position of the printing area and the fabric pattern information; Step S44: Analyzing the predicted printing area texture feature and the texture feature to determine the texture feature deviation value; Step S45: Outputting a preset wrinkle-free signal when the texture feature deviation value is less than a preset minimum texture feature deviation value; Step S46: Determining the wrinkle state of the printing area when the texture feature deviation value is greater than the minimum texture feature deviation value.

[0009] By adopting the technical scheme, the garment printing quality can be improved by effectively detecting and processing the wrinkle problem of the printing area. In actual application, the method ensures comprehensive understanding of the surface state of the garment through multi-angle image acquisition and analysis. Meanwhile, the push rod device can be accurately operated according to the real-time generated push rod control parameters. In addition, through comprehensive analysis of the printing pattern parameters and the printing area, the system can dynamically adjust the printing scheme to adapt to different garment materials and pattern requirements. This technical scheme not only improves the production efficiency, but also provides a more reliable solution for the garment customization industry.

[0010] Optionally, the method for generating the push rod control parameters according to the printing area when the wrinkle state of the printing area exists comprises: Step S50: Collecting side view image information of the printing area, the side view image information being used to determine the three-dimensional height fluctuation data of the printing area; Step S51: Obtain the planar height and maximum height of the ironing region; Step S52: Determine the three-dimensional height fluctuation data based on the planar height and the maximum height; Step S53: Determine the dust impurities when the three-dimensional height fluctuation data falls within the preset smooth fluctuation data range; Step S54: Generate the lever control parameters according to the ironing region when the three-dimensional height fluctuation data does not fall within the smooth fluctuation data range or there are dust impurities, and control the lever device to perform the flattening operation according to the lever control parameters.

[0011] By adopting the above technical solution, the present application can finely analyze the three-dimensional form of the ironing region, thereby generating scientific and reasonable lever control parameters. By collecting side view image information, the system can comprehensively master the height change of the ironing region, further confirming the specific degree and distribution characteristics of the wrinkles. In the judgment process, the introduction of the smooth fluctuation data range effectively eliminates interference factors such as dust impurities, ensuring the accuracy of the detection result. When detecting abnormal height fluctuations, the system will dynamically generate lever control parameters according to actual needs, and drive the lever device to complete accurate flattening operation, providing a flat working surface for subsequent ironing process. This process not only improves the flattening efficiency, but also significantly reduces the operation error caused by misjudgment, laying a solid foundation for high-quality ironing.

[0012] Optionally, the method for operating when there are still wrinkles in the ironing region after performing the flattening operation, the method comprising: Step S55: Re-obtain the three-dimensional height fluctuation data corresponding to the ironing region, and define it as the corrected three-dimensional height fluctuation data; Step S56: Determine the wrinkle boundary coordinates corresponding to the ironing region when the corrected three-dimensional height fluctuation data does not fall within the smooth fluctuation data range; Step S57: Determine the wrinkle center point coordinates based on the wrinkle boundary; Step S58: Perform the preset lifting operation according to the wrinkle center point coordinates, so that the height corresponding to the wrinkle center point coordinates exceeds the height corresponding to the wrinkle boundary; Step S59: Generate the lever control parameters according to the wrinkle boundary coordinates when performing the lifting operation, and control the lever device to perform the flattening operation according to the lever control parameters.

[0013] By adopting the technical scheme, the present application can perform secondary processing for complex wrinkle conditions, thereby further improving the flattening effect. In actual application, when the preliminary flattening operation fails to completely eliminate the wrinkles, the system can accurately identify the specific position and range of the wrinkles by re-collecting the three-dimensional height data. Based on the coordinate relationship between the wrinkle boundary and the center point, the device can perform targeted lifting operation, so that the wrinkle area forms a height difference that is conducive to subsequent flattening. Meanwhile, combined with the dynamically generated control parameters of the poking rod, the poking rod device can complete the final flattening process in a more scientific manner. This method not only enhances the processing capacity for stubborn wrinkles, but also effectively avoids possible damage to the clothes caused by repeated operations, and ensures that the ironing area reaches an ideal state.

[0014] Optionally, the method further comprises a method of not outputting the no-wrinkle signal when the texture feature deviation value is less than the minimum texture feature deviation value, and the method comprises: Step S450: Collecting side view image information of the ironing area to obtain the planar height and the maximum height of the ironing area to form three-dimensional height fluctuation data; Step S451: Outputting the no-wrinkle signal when the three-dimensional height fluctuation data falls within the stable fluctuation data range; Step S452: Determining a height fluctuation point when the three-dimensional height fluctuation data does not fall within the stable fluctuation data range, and outputting a preset clothes folding signal; Step S453: Generating poking rod control parameters based on the height fluctuation point and the ironing area in response to the clothes folding signal, and controlling the poking rod device to perform clothes unfolding operation according to the poking rod control parameters.

[0015] By adopting the technical scheme, the system can accurately identify the folding position and degree of the clothes by collecting side view image information and combining three-dimensional height fluctuation data. When detecting height fluctuation abnormalities, the system can not only output corresponding signal prompts, but also generate targeted poking rod control parameters based on specific height fluctuation points. Meanwhile, through optimized control of the clothes unfolding operation, the system can restore the flat state of the clothes surface to the greatest extent, thereby providing reliable protection for subsequent ironing procedures. This technical scheme not only enhances the adaptability of the device, but also significantly improves the stability of the overall production process and the quality of the finished product.

[0016] Optionally, the method further comprises an updating method of the ironing area, and the method comprises: Step S460: Obtaining clothes placement coordinates, which are coordinate points in a coordinate system established based on the feeding plate; Step S461: Determining ironing area coordinates based on the relative position of the ironing area and the clothes placement coordinates; Step S462: Obtaining the current clothes movement speed and converting it into a coordinate change speed; Step S463: Real-time update the hot stamping area coordinates based on the coordinate change speed and the hot stamping area coordinates.

[0017] By adopting the above technical solution, the present application realizes accurate tracking of the hot stamping area of the dynamically moving clothes. In actual application, the system can obtain the spatial position information of the clothes in the transmission process by establishing the above plate-based coordinate system. Combined with the relative position parameters of the hot stamping area of the clothes, the system can dynamically calculate the actual coordinates of the current hot stamping area. When the clothes are detected to move, the moving speed is converted into the coordinate change rate, and the vector superposition is performed with the initial hot stamping area coordinates, so as to ensure that the hot stamping device is always aligned with the target area. This dynamic coordinate updating mechanism not only compensates for the position deviation in the transmission process, but also adapts to the clothes moving scene at different speeds, effectively avoids the hot stamping misalignment problem caused by positioning deviation, and significantly improves the continuity and yield of the assembly line operation.

[0018] Optionally, the method for updating the hot stamping area coordinates based on the dial lever device is also included, and the method comprises: Step S464: After the dial lever device performs the corresponding operation, the hot stamping area overhead image information is re-acquired, and is defined as the corrected hot stamping area overhead image information; Step S465: The corrected clothes placement coordinates are determined according to the corrected hot stamping area overhead image information and the characteristics of the clothes to be hot stamped; Step S466: The current hot stamping area coordinates are determined based on the corrected clothes placement coordinates; Step S467: The current clothes moving time is obtained when the current hot stamping area coordinates exist; Step S468: The hot stamping area coordinates are real-time updated based on the current hot stamping area coordinates, the current clothes moving time and the coordinate change speed.

[0019] By adopting the above technical solution, after the flattening operation is performed, the present application can accurately obtain the corrected hot stamping area state by re-acquiring the overhead image information of the hot stamping area. Combined with the characteristic parameters of the clothes to be hot stamped, the system can dynamically determine the corrected placement coordinates of the clothes on the transmission device, so as to eliminate the position deviation that may be generated in the flattening process. At the same time, by real-time monitoring the clothes moving time and performing the associated calculation with the preset coordinate change speed, the system can continuously track the actual position of the hot stamping area. This dynamic coordinate updating mechanism not only ensures that the hot stamping device can still accurately align with the target area after the clothes are flattened, but also effectively compensates for the positioning error caused by mechanical vibration or transmission fluctuation, thereby providing a reliable guarantee for subsequent high-quality hot stamping.

[0020] Optionally, the method for avoiding clothes overlapping after the dial lever device performs the corresponding operation is also included, and the method comprises: Step S469: determining the risk clothes placement coordinate range based on the clothes placement coordinate and the to-be-painted clothes feature; Step S470: determining the correction lever control parameter when the corrected clothes placement coordinate falls within the risk clothes placement coordinate range, and controlling the lever device to perform the back-pushing operation according to the correction lever control parameter; Step S471: collecting the side view image information and the overhead view image information of the painting area after the back-pushing operation is performed, to determine the clothes overlapping area; Step S472: performing steps S450 to S453 when the clothes overlapping area exists.

[0021] By adopting the above technical solution, after the flattening operation is performed, the risk area is accurately determined by the clothes placement coordinate and the to-be-painted clothes feature, which effectively prevents the clothes from falling off the feeding plate or the painting defect caused by the fact that the painting area cannot be flatly laid on the feeding plate. When the system detects that the corrected clothes coordinate falls within the risk range, the correction lever control parameter is immediately generated and the lever device is driven to perform the back-pushing operation to push the clothes back to the safe area. After the operation is completed, the system synchronously collects the side view and overhead view images for cross verification, and accurately locates the residual overlapping area. If the overlapping is detected, the overlapping is eliminated by the back-pushing operation.

[0022] Optionally, the method further includes a verification method of the correction lever control parameter, which includes: Step S4700: determining the predicted clothes overlapping area based on the correction lever control parameter; Step S4701: determining the painting coverage state based on the painting area when the predicted clothes overlapping area exists; Step S4702: re-determining the correction lever control parameter when the painting coverage state exists.

[0023] By adopting the above technical solution, after the correction lever control parameter is generated, the parameter validity is verified twice by the predictive analysis mechanism. The system first simulates the shape change of the clothes after being pressed in the three-dimensional space according to the numerical range and the action direction of the correction lever control parameter, and predicts the range of the possible overlapping area. When the predicted overlapping area is detected, whether the current parameter will cause the pattern deformation or incomplete coverage is judged by comparing the matching degree of the painting pattern and the actual contact area of the clothes surface. This closed-loop verification mechanism not only ensures the accuracy of the flattening operation, but also effectively avoids the secondary wrinkles caused by parameter errors, provides a completely flat working surface for the subsequent painting process, and thus improves the product qualification rate.

[0024] In a second aspect, the present application provides an automatic feeding assembly line type painting machine, which adopts the following technical solution: An automatic feeding flow line type heat transfer printing machine applies the heat transfer printing method as described above, and comprises a workbench, a conveying device, a heat transfer printing device, a feeding device, a feeding plate, a poking rod device, a first image capturing device and a second image capturing device. The conveying device is fixedly connected to one end of the workbench, the first image capturing device is installed on the conveying device and moves horizontally through the conveying device to collect overhead image information of a heat transfer printing area, the heat transfer printing device moves horizontally through the conveying device, the feeding device is fixedly connected to one end of the workbench close to the conveying device, the feeding plate is laid at one end of the feeding device away from the workbench, one end of the feeding plate for placing clothes to be heat transfer printed is provided with a lifting plate, the lifting plate is used to lift the clothes to be heat transfer printed, the feeding plate moves from one end of the conveying device to the other end through the feeding device, the poking rod device is fixedly connected to one end of the workbench close to the conveying device and is used to poke the clothes to be heat transfer printed placed on the feeding plate, and the second image capturing device is fixed to one end of the poking rod device to collect side view image information of the heat transfer printing area.

[0025] By adopting the above technical scheme, the automatic feeding flow line type heat transfer printing machine provided by the present application realizes the coordinated work and precise cooperation of each component. As a basic support structure, the conveying device not only provides a stable track for the horizontal movement of the first image capturing device to ensure that it can comprehensively collect overhead image information of the heat transfer printing area, but also creates conditions for the horizontal movement of the heat transfer printing device, so that it can accurately reach the specified heat transfer printing position. The cooperation of the feeding device and the feeding plate realizes the automatic conveying of the clothes to be heat transfer printed, and the feeding plate moves stably under the driving of the feeding device to provide a stable work platform for subsequent heat transfer printing operation. The poking rod device is fixed to one end of the workbench close to the conveying device, and its position is designed to facilitate quick response and poking of the clothes to be heat transfer printed on the feeding plate, effectively adjusting the position of the clothes to provide convenience for the leveling operation. The second image capturing device is fixed to one end of the poking rod device and can collect side view image information of the heat transfer printing area in real time, which is complementary to the overhead image information collected by the first image capturing device, providing comprehensive image data support for the system. This structure design enables the components to work in order during the operation of the heat transfer printing machine, from the conveying of the clothes, the adjustment of the position, the collection of the image information to the final heat transfer printing operation, forming a complete and efficient automatic process, greatly improving the efficiency and accuracy of the heat transfer printing operation, and providing an efficient and reliable automatic heat transfer printing solution for the garment customization industry.

[0026] In summary, the present application has at least one of the following beneficial technical effects: Through the top view and side view dual-camera data acquisition, the inherent pattern, wrinkle, dust impurities and the visual flatness caused by the overlapping of the sleeve can be effectively distinguished. For stubborn wrinkles, it can also be eliminated through the lifting and directional flattening secondary processing mechanism to ensure the surface flatness of the ironing area, avoid the pattern blur and fracture caused by wrinkles from the root, and significantly improve the ironing product quality. In view of the position deviation caused by the pipeline clothing movement and flattening operation, a dynamic coordinate updating and operation after coordinate correction double mechanism is designed: the clothing movement speed is converted into the coordinate change speed to update the ironing area coordinates in real time; after the operation of the lever device, the image can be reacquired and the clothing placement coordinates can be corrected to ensure that the ironing area always matches the actual position of the clothing, completely solves the ironing misplacement problem caused by positioning deviation in the traditional pipeline, and improves the consistency of batch production. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of an automatic feeding pipeline type ironing machine in the embodiment of the present application; Figure 2 is a flowchart of an ironing method in the embodiment of the present application.

[0028] The parts referred to by the numbers in the above drawings are as follows: 1, workbench; 11, second sliding groove; 2, transmission device; 21, fixed support; 211, first sliding hole; 212, second sliding hole; 213, third sliding hole; 22, first sliding column; 23, second sliding column; 24, third sliding column; 3, ironing device; 31, first moving seat; 32, lifting column; 33, ironing head; 4, feeding device; 41, base; 411, first sliding groove; 42, roller; 5, feeding plate; 51, lifting plate; 6, lever device; 61, second moving seat; 62, rotating disc; 63, lug; 64, rotating shaft; 65, lever; 7, first image capture device; 8, second image capture device. DETAILED DESCRIPTION

[0029] The present application will be further described in detail below in combination with the drawings and embodiments.

[0030] The embodiment of the present application discloses an automatic feeding pipeline type ironing machine. Referring to Figure 1 An automatic feeding pipeline type ironing machine comprises a workbench 1, a transmission device 2, an ironing device 3, a feeding device 4, a feeding plate 5, a lever device 6, a first image capture device 7 and a second image capture device 8.

[0031] The transmission device 2 comprises a first fixed support 21, a first sliding column 22, a second sliding column 23 and a third sliding column 24. The first fixed support 21 is fixedly connected to one end of the workbench 1. The first fixed support 21 is provided with a first sliding hole 211, a second sliding hole 212 and a third sliding hole 213 for respectively penetrating the first sliding column 22, the second sliding column 23 and the third sliding column 24. The ironing device 3 comprises a first moving seat 31, a lifting column 32 and an ironing head 33. The first moving seat 31 is in sliding connection with the first sliding column 22 and the second sliding column 23. One end of the lifting column 32 penetrates the first moving seat 31 close to one end of the workbench 1, and the other end of the lifting column 32 is fixedly connected with the ironing head 33. The lifting column 32 realizes the vertical movement of the ironing head 33, and the first sliding column 22 and the second sliding column 23 realize the horizontal movement of the ironing head 33. The first image capture device 7 penetrates the third sliding column 24 and realizes horizontal movement through the third sliding column 24 to collect overhead image information of the ironing area.

[0032] The feeding device 4 comprises a pair of bases 41 and a roller 42. The base 41 is provided with a first sliding groove 411, and the feeding plate 5 is embedded in the first sliding groove 411 and moves along the length direction of the first sliding groove 411. The feeding plate 5 is provided with a lifting plate 51 for lifting the clothes to be ironed on the feeding plate 5. One end of the base 41 away from the feeding plate 5 is fixedly connected with the workbench 1. The pair of bases 41 are rotatably connected with the roller 42 on the side close to each other. There are several feeding devices 4.

[0033] The workbench 1 is provided with a second sliding groove 11 close to the feeding device 4. The lever device 6 comprises a second moving seat 61, a rotating disc 62, an ear 63, a rotating shaft 64 and a lever 65. The second moving seat 61 is embedded in the second sliding groove 11 and moves along the length direction of the second sliding groove 11. One end of the second moving seat 61 away from the second sliding groove 11 is rotatably connected with the rotating disc 62. One end of the rotating disc 62 away from the second moving seat 61 is fixedly connected with the ear 63, and the number of the ears 63 is two. The two ends of the rotating shaft 64 are rotatably connected with the two ears 63 in one-to-one correspondence. The axis of the rotating shaft 64 is parallel to the workbench 1. The lever 65 penetrates the rotating shaft 64 and rotates along the axis direction of the rotating shaft 64, and realizes horizontal movement through the second sliding groove 11 to flatten the wrinkles on the clothes to be ironed and to push away the clothes covering the ironing area when there is clothes overlapping on the corresponding ironing area of the clothes to be ironed, so as to ensure the complete exposure of the ironing area. The second image capture device 8 is fixed on one end of the second moving seat 61 away from the workbench 1 and realizes horizontal movement through the second sliding groove 11 to collect side view image information of the ironing area.

[0034] Based on the same inventive concept, the present embodiment provides an ironing method.

[0035] Referring to Figure 2 A heat transfer printing method, comprising: Step S1: in response to a preset feeding signal, the feeding signal comprising size information of the garment to be heat transfer printed and fabric pattern information corresponding to the garment to be heat transfer printed.

[0036] The feeding signal refers to a signal that triggers the automatic feeding process. The signal is input by the operator through the control panel and transmitted to the heat transfer printing machine control system. Here, the heat transfer printing machine control system starts the automatic feeding assembly line heat transfer printing machine, which has the function of automatic feeding. When the garment is placed on the feeding plate 5, the pressure sensor built-in the feeding plate 5 is subjected to the pressure of the garment to confirm that the garment is placed. The heat transfer printing machine control system controls the roller 42 to rotate to control the horizontal movement of the feeding plate 5 to the designated position. The size information of the garment to be heat transfer printed refers to a set of multi-dimensional parameters input by the operator through the control panel based on the actual specification measurement of the garment to be heat transfer printed, including not only the overall geometric size of the garment, such as length, width, shoulder width, chest circumference, etc., but also the characteristic parameters of key structural parts, including collar features (collar type: round collar, square collar, V-neck; collar size: collar diameter, collar depth, collar width), sleeve opening features (sleeve opening type: long sleeve, short sleeve, sleeveless; sleeve opening size: sleeve opening width, sleeve opening length, sleeve opening vertical distance from shoulder), and skirt features (skirt width, skirt arc). These parameters are used to build a digital contour model of the garment in the heat transfer printing machine control system. The fabric pattern information refers to a set of structured parameters input by the operator through the control panel based on the inherent pattern characteristics on the fabric of the garment to be heat transfer printed, which is used to build a pattern digital model in the heat transfer printing machine control system to assist in distinguishing inherent patterns from wrinkles, impurities and other interference factors, including pattern type characteristics: such as plaid (including plaid size, line color, line width), stripes (including stripe direction, interval, color gradient), printed patterns (including pattern outline, theme elements, color distribution), solid color without pattern, etc. Pattern distribution characteristics: such as overall uniform distribution, local concentrated distribution (such as only the front chest area has patterns), symmetrical distribution (such as left and right sleeve patterns are symmetrical), and position coordinates of key pattern areas (such as vertical distance from the collar, horizontal distance from the sleeve opening). Texture detail characteristics: such as continuity of pattern lines (whether there are natural breakpoints), gray scale, color contrast (difference between pattern and fabric background), pattern repetition period (such as repetition interval of stripes, unit size of plaid), etc.

[0037] Step S2: obtaining image information of the garment to be heat transfer printed.

[0038] The to-be-ironed garment image information refers to a planar image of the garment located on the feeding plate 5 collected by the overhead camera, which contains the overall contour of the garment, the actual edge shape of the key structural parts (neckline, cuff, hem), surface texture distribution, and color and grayscale distribution details.

[0039] Step S3: Analyzing the to-be-ironed garment image information to determine the ironing area.

[0040] The ironing area refers to a specific range determined on the surface of the to-be-ironed garment for performing the ironing operation. The specific determination method is to preset the ironing area position information of the garment corresponding to the feeding signal, and to locate the key structural parts (such as neckline, cuff, hem, etc.) in the to-be-ironed garment image by using image recognition technology, and then to determine the specific position and range of the ironing area on the garment. The range is usually presented in the form of a coordinate set. It should be noted that the ironing area is artificially preset, and the ironing area position information is the relative position of the ironing area and the garment, which changes dynamically with the movement of the garment.

[0041] Step S4: Determining the ironing area wrinkle state based on the ironing area.

[0042] The ironing area wrinkle state refers to the quantitative evaluation result of the flatness of the ironing area surface. This state is determined by comprehensive analysis of the three-dimensional height fluctuation data of the ironing area and the texture features of the ironing area. The three-dimensional height fluctuation data and the texture features of the ironing area and the specific judgment process will be introduced in the subsequent process, and will not be repeated here.

[0043] Step S5: Generating a push rod control parameter based on the ironing area when the ironing area wrinkle state exists, and controlling the push rod device 6 to perform the flattening operation according to the push rod control parameter.

[0044] The push rod control parameter refers to a specific instruction set for guiding the push rod device 6 to perform the flattening operation, the unfolding operation and the push rod operation. This parameter set is generated based on the three-dimensional height fluctuation data of the ironing area and the wrinkle state analysis result, and specifically includes the movement trajectory of the push rod 65, the depth of the push rod 65, and the rotation angle of the push rod 65. Among them, the movement trajectory is planned according to the wrinkle boundary coordinates and the wrinkle center point coordinates to ensure that the push rod 65 covers all the wrinkle areas, the depth of the push rod 65 is determined according to the maximum height difference in the three-dimensional height fluctuation data, and the rotation angle of the push rod 65 is determined by the angle difference between the push rod and the ironing area. The wrinkle boundary coordinates and the wrinkle center point coordinates will be introduced in the subsequent process, and will not be repeated here.

[0045] Step S6: Obtain the ironing pattern parameters corresponding to the to-be-ironed garment.

[0046] The hot stamping pattern parameters refer to a set of structured data used to define the specific form of the to-be-hot-stamped pattern in the hot stamping area. This parameter set covers the pattern type, pattern size, pattern position (which is determined in the hot stamping area as the reference coordinate system, and usually represented by the pattern center point coordinates or the top left corner vertex coordinates), and pattern color characteristics. These parameters are input by the operator in advance on the control panel and transmitted to the hot stamping machine control system.

[0047] Step S7: Form a hot stamping plan according to the hot stamping area and hot stamping pattern parameters, and perform hot stamping operation according to the hot stamping plan.

[0048] The hot stamping plan refers to the hot stamping operation execution plan formulated in combination with the position coordinates of the hot stamping area and the hot stamping pattern parameters. The hot stamping operation refers to the process of generating specific execution instructions including hot stamping device movement path, temperature control curve, and pressure application timing in the hot stamping machine control system according to the specific position and range of the hot stamping area and the hot stamping pattern parameters.

[0049] The method for determining the hot stamping area wrinkle state based on the hot stamping area includes: Step S40: Collect the hot stamping area overhead image information, which is used to determine the texture characteristics of the hot stamping area.

[0050] The hot stamping area overhead image information refers to the image data obtained by the first image capture device 7 from directly above the to-be-hot-stamped clothes on the feeding plate 5. This image data contains the projection outline of the hot stamping area on the horizontal plane and the two-dimensional distribution characteristics of the surface texture.

[0051] Step S41: Determine the to-be-hot-stamped clothes features based on the to-be-hot-stamped clothes image information.

[0052] The to-be-hot-stamped clothes features refer to a set of key data extracted from the collected to-be-hot-stamped clothes image information, which can reflect the surface morphology, structure, and material characteristics of the clothes. These features specifically include the overall geometric shape characteristics of the clothes, such as the length-width ratio, contour curve, etc.; key structural part features, such as the shape of the collar, the style of the sleeve, the arc of the hem, etc.; and surface texture characteristics.

[0053] Step S42: Determine the hot stamping area relative position based on the to-be-hot-stamped clothes features, to-be-hot-stamped clothes size information, and hot stamping area.

[0054] The relative position of the ironing area refers to the relative position parameters of the ironing area in the garment coordinate system determined by a geometric transformation algorithm based on the overall geometric shape of the garment to be ironed, the position coordinates of the key structural parts (collar, cuff, hem), and the pre-set relative position relationship between the ironing area and the garment structure. The relative position parameters are represented by the coordinate offset of the center point of the ironing area relative to the key structural parts of the garment (such as the center of the collar, the edge of the cuff). The coordinates here are coordinate values on the plane coordinate system set with the garment to be ironed as the reference plane.

[0055] Step S43: Determine the predicted ironing area texture feature based on the relative position of the ironing area and the fabric pattern information.

[0056] The predicted ironing area texture feature refers to the original texture distribution of the ironing area without the interference of wrinkles, which is predicted by a texture mapping algorithm based on the relative position of the ironing area on the garment, combined with the data on the pattern distribution characteristics (such as overall uniform distribution, local concentrated distribution, symmetrical distribution, etc.) and the position coordinates of the key pattern area in the fabric pattern information. This feature specifically includes the pattern type (such as the outline form of plaid, stripes, and printed patterns), the texture directionality (such as the inclination angle of the stripes and the arrangement direction of the plaid), the texture density (the repetition frequency of the pattern elements per unit area), and the contrast relationship between the texture and the fabric background color.

[0057] For example, when the ironing area covers a plaid fabric, the predicted ironing area texture feature will present a regular plaid arrangement, with the line width, color, and plaid size consistent with other areas of the fabric. If the ironing area is located on a striped fabric, the continuity and possible color gradient features of the stripes in the area need to be predicted according to the stripe direction (horizontal, vertical, and inclined) and the spacing parameters. For a printed pattern area, the completeness of the pattern elements and the color distribution rule in the texture feature need to be determined by combining the pattern outline coordinates, judging whether the ironing area completely contains the pattern main elements or only covers part of the pattern edge.

[0058] In addition, when the hot drawing area crosses different pattern distribution areas (such as from a solid color area to a plaid area), it is expected that the texture features will exhibit the superposition or boundary change of multiple pattern types, and at this time a multi-pattern fusion algorithm is needed to comprehensively analyze the parameters of each pattern area to generate a prediction result containing the texture gradient features of the transition area. The algorithm first identifies the intersection coordinates of the hot drawing area boundary and different pattern distribution areas, and then calculates the texture mixing ratio of the transition area according to the types of adjacent patterns (such as solid color and plaid, stripes and printed patterns) and distribution characteristics (such as the symmetry of the pattern, the repetition period of the pattern). For example, when the hot drawing area enters the plaid area from the solid color area, the texture features of the transition area will present the effect of gradually emerging plaid lines on the solid color background, and the line color, width and transparency are dynamically adjusted according to the color contrast of solid color and plaid and the size of the plaid to ensure that the transition is natural and consistent with the original texture rules of the fabric.

[0059] Step S44: Analyze the predicted hot drawing area texture features and the texture features to determine the texture feature deviation value.

[0060] The texture feature deviation value is a quantitative index obtained by comparing the predicted hot drawing area texture features with the texture features in the actual collected overhead image information of the hot drawing area, and calculating the difference between the two. This index specifically reflects the degree of texture deformation of the actual hot drawing area caused by factors such as wrinkles, impurities or overlapping of clothes, including the texture direction deviation (here the change in the inclination angle of the stripes), the texture density change rate (here the increase or decrease proportion of the number of pattern elements per unit area), the texture contrast difference value (here the color or grayscale contrast difference value between the actual texture and the predicted texture), and the texture completeness loss rate (here the proportion of missing pattern elements due to wrinkle obstruction).

[0061] Step S45: Output a preset wrinkle-free signal when the texture feature deviation value is less than a preset minimum texture feature deviation value.

[0062] The minimum texture feature deviation value is a preset threshold value for judging whether the hot drawing area reaches a wrinkle-free state. This threshold value is determined based on a large amount of experimental data and actual production needs to ensure that when the texture feature deviation value is less than this value, the surface flatness of the hot drawing area meets the hot drawing process requirements. The wrinkle-free signal is a signal indicating that there are no wrinkles in the hot drawing area corresponding to the clothes to be hot drawn. It should be noted that wrinkles cannot be judged by comparing the texture deviation value, and a marker is set for the hot drawing area in advance. Any clothes without patterns in the hot drawing area will be painted with fluorescent powder that does not affect hot drawing operations. The fluorescent powder is in the shape of a circle to better judge wrinkles.

[0063] Step S46: Determine the wrinkle state of the hot drawing area when the texture feature deviation value is greater than the minimum texture feature deviation value.

[0064] The crease state of the ironing region refers to the state of the ironing region corresponding to the clothes to be ironed having creases. When the texture feature deviation value is greater than the minimum texture feature deviation value, it indicates that the surface of the ironing region has texture deformation caused by creases, impurities, or overlapping of clothes, and the system determines that the ironing region has creases.

[0065] The method for generating the lever control parameter according to the crease state of the ironing region includes: Step S50: Collect side view image information of the ironing region, which is used to determine the three-dimensional height fluctuation data of the ironing region.

[0066] The side view image information of the ironing region refers to image data obtained by the second image capture device 8 capturing the clothes to be ironed on the feeding plate 5 from the side. The image data contains the height variation information of the ironing region in the vertical direction, and can intuitively reflect the concave-convex fluctuation of the surface of the ironing region. The three-dimensional height fluctuation data refers to a set of multiple height values of the surface of the ironing region in the vertical direction, including the plane height, the maximum height, and the height difference. The height difference refers to the difference between the maximum height and the plane height.

[0067] Step S51: Obtain the plane height and the maximum height of the ironing region.

[0068] The plane height refers to the average height value of the flat part extracted from the ironing region. The maximum height refers to the actual height value of the highest point in the vertical direction of the ironing region. The plane height is calculated by taking the average of the pixel value distribution of the relatively flat area in the side view image of the ironing region. The maximum height is identified by an image processing algorithm to identify the peak point in the image, and is converted into the actual height value in combination with the calibration parameters of the device.

[0069] Step S52: Determine the three-dimensional height fluctuation data based on the plane height and the maximum height.

[0070] Step S53: Determine the dust impurities when the three-dimensional height fluctuation data falls within the preset smooth fluctuation data range.

[0071] The smooth fluctuation data range refers to a data range in which the features corresponding to the three-dimensional height fluctuation data for determining creases are not creases. When the three-dimensional height fluctuation data falls within the smooth fluctuation data range, it indicates that the surface of the ironing region does not have creases, but the crease state of the ironing region exists at this time, indicating that there may be dust on the clothes to be ironed, causing the texture feature deviation value corresponding to the ironing region to be greater than the minimum texture feature deviation value.

[0072] Step S54: When the three-dimensional height fluctuation data does not fall within the range of the smooth fluctuation data or there is dust impurity, generate the control parameter of the ironing rod according to the ironing area, and control the ironing rod device 6 to perform the flattening operation according to the control parameter of the ironing rod.

[0073] When the three-dimensional height fluctuation data does not fall within the range of the smooth fluctuation data or there is dust impurity, it indicates that the surface of the ironing area has obvious unevenness caused by wrinkles or dust impurities. At this time, the system will generate the control parameter of the ironing rod based on the ironing area and perform the flattening operation to eliminate wrinkles or dust in the ironing area. Here, the operation of eliminating dust is to use the ironing rod as a broom to scrape the surface of the clothes, which is not a pressing operation, and the same applies to wrinkles.

[0074] The method also includes an operation method for eliminating wrinkles in the ironing area after performing the flattening operation, which includes: Step S55: Re-acquire the three-dimensional height fluctuation data corresponding to the ironing area and define it as the corrected three-dimensional height fluctuation data.

[0075] The corrected three-dimensional height fluctuation data refers to the three-dimensional height fluctuation data determined by the second image capture device 8 again after performing the flattening operation, which is used to evaluate the effect of the flattening operation and determine whether the ironing area still has wrinkles.

[0076] Step S56: Determine the wrinkle boundary coordinates of the ironing area when the corrected three-dimensional height fluctuation data does not fall within the range of the smooth fluctuation data.

[0077] The wrinkle boundary coordinates refer to the edge positions in the ironing area where there are abnormal changes in height. These coordinates are determined by comparing the differences between the corrected three-dimensional height fluctuation data and the range of the smooth fluctuation data, and identifying the starting and ending positions of the wrinkle area. The coordinate conversion method is to perform edge detection on the part of the corrected three-dimensional height fluctuation data that exceeds the range of the smooth fluctuation data, identify the mutation points of height changes through image processing algorithms, and convert the positions of these mutation points in the image coordinate system to actual physical coordinates, thereby determining the specific positions of the wrinkle boundary in the ironing area.

[0078] Step S57: Determine the wrinkle center point coordinates based on the wrinkle boundary.

[0079] The wrinkle center point coordinates refer to the center position coordinates of the wrinkle area, which are determined by calculating the average of the wrinkle boundary coordinates or using a geometric center algorithm.

[0080] Step S58: Perform the preset lifting operation according to the wrinkle center point coordinates to make the height corresponding to the wrinkle center point coordinates exceed the height corresponding to the wrinkle boundary.

[0081] The lifting operation refers to an operation of lifting the garment to be ironed by the lifting plate 51, specifically, precisely lifting the region corresponding to the wrinkle center point coordinates so that the height of the region exceeds the height corresponding to the wrinkle boundary, thereby forming a reverse stretching effect.

[0082] Step S59: When the lifting operation is performed, the push rod control parameter is generated according to the wrinkle boundary coordinates, and the push rod device 6 is controlled to perform the flattening operation according to the push rod control parameter.

[0083] When the lifting operation is performed, the height of the region corresponding to the wrinkle center point coordinates is higher than the height of the region corresponding to the wrinkle boundary, so at this time, the push rod device 6 is controlled to perform the flattening operation, the purpose of which is to further stretch the garment to be ironed, so that the wrinkles in the ironing region disappear.

[0084] The method further includes a method of not outputting the no-wrinkle signal when the texture feature deviation value is less than the minimum texture feature deviation value, the method comprising: Step S450: Collecting side view image information of the ironing region to obtain the planar height and the maximum height of the ironing region to form three-dimensional height fluctuation data.

[0085] Because when the texture feature deviation value is less than the minimum texture feature deviation value, it does not necessarily mean that the ironing region meets the ironing requirements, at this time, there is a small probability event that causes the texture feature deviation value to be too low, for example, the sleeve region corresponding to the clothing with lattice patterns blocks the corresponding chest region, and due to the angle at which the sleeve is placed, the lattice stripes of the sleeve region and the lattice stripes of the chest region coincide in direction, forming a visually flat effect, that is, although the texture feature deviation value is small from the overhead view, in fact, the ironing region still has wrinkles or unevenness. In order to deal with this situation, it is necessary to further collect the side view image information of the ironing region.

[0086] Step S451: Outputting the no-wrinkle signal when the three-dimensional height fluctuation data falls within the stable fluctuation data range.

[0087] When the three-dimensional height fluctuation data falls within the stable fluctuation data range, it means that the ironing region corresponding to the garment to be ironed does not have an overlapping phenomenon, so the no-wrinkle signal is outputted.

[0088] Step S452: Determining the height fluctuation points when the three-dimensional height fluctuation data does not fall within the stable fluctuation data range, and outputting a preset clothing folding signal.

[0089] The height fluctuation points refer to specific position points in the three-dimensional height fluctuation data that exceed the stable fluctuation data range, which reflect the significant height changes in the vertical direction of the surface of the ironing region due to wrinkles or clothing folding, that is, the garment to be ironed does not have wrinkles but has an overlapping phenomenon.

[0090] The garment folding signal refers to when the three-dimensional height fluctuation data does not fall within the range of smooth fluctuation data, it indicates that the ironing area may have obvious height changes due to garment folding or creases. However, at this time, because the texture feature deviation value is less than the minimum texture feature deviation value, only the garment folding condition is possible at present. At this time, the garment folding signal is output, indicating that the garment to be ironed has a folding condition and needs to be adjusted or repositioned to ensure the surface flatness of the ironing area.

[0091] Step S453: In response to the garment folding signal, generate the lever control parameter based on the height fluctuation point and the ironing area, and control the lever device 6 to perform the garment unfolding operation according to the lever control parameter.

[0092] The unfolding operation refers to applying appropriate pressure to the folded part of the garment to gradually unfold and restore it to a flat state. When there is a height fluctuation point, it indicates that the ironing area has local unevenness due to garment folding. At this time, the system will generate targeted lever control parameters based on the specific location of the height fluctuation point and the overall layout of the ironing area. These parameters specify the movement path, pressure, and action time of the lever device 6 in detail, ensuring that the garment folding part can be unfolded accurately and the flatness of the ironing area can be restored.

[0093] The method also includes an ironing area updating method, which includes: Step S460: Obtain the garment placement coordinates, which are coordinate points in the coordinate system established based on the feeding plate 5.

[0094] The garment placement coordinates refer to the specific position coordinates of the garment to be ironed on the feeding plate 5 obtained through image recognition, taking the feeding plate 5 of the automatic feeding line ironing machine as the reference plane. These coordinate points constitute the spatial positioning information of the garment in the device coordinate system, including garment edge contour coordinates, key feature point (such as collar and cuff center) coordinates, and ironing area center coordinates. When establishing the coordinate system, ensure that the plane of the feeding plate 5 is aligned with the first image capture device 7. For example, when detecting that the left sleeve edge coordinates of the garment are (X1, Y1) and the right sleeve edge coordinates are (X2, Y2), the system can calculate the length of the horizontal center axis of the garment.

[0095] Step S461: Determine the ironing area coordinates based on the relative position of the ironing area and the garment placement coordinates.

[0096] The ironing area coordinates refer to the coordinate parameters for accurately positioning the ironing area in the coordinate system with the feeding plate 5 as the reference plane. This coordinate is dynamically calculated by combining the relative position of the ironing area on the garment (such as the distance ratio from the collar and cuffs) and the garment placement coordinates.

[0097] Step S462: Obtain the current garment moving speed and convert it into coordinate change speed.

[0098] The current garment moving speed refers to the linear speed of the garment to be printed on the feeding plate 5 during the automatic feeding pipeline transmission process. This speed is obtained in real time through an encoder or a visual speed measurement algorithm. Here, the current garment moving speed corresponds to the rotation speed of the roller 42, which is the product of the circumference of the roller 42 and the rotation speed of the roller 42. Here, the rotation speed of the roller 42 is obtained through an encoder. The coordinate change speed refers to the conversion of the garment moving speed into the displacement change rate in the coordinate system, which is used to describe the dynamic parameters of the printing area coordinates changing over time. In specific implementation, the system converts the physical displacement into a velocity vector in the coordinate system by real-time acquisition of the encoder data of the roller 42 or analysis of the displacement of the garment feature points in consecutive frames of images, combined with timestamp information. For example, when the encoder of the roller 42 shows that it rotates N turns per minute, and the circumference of the roller 42 is known, the physical distance moved by the garment per second can be calculated, and then converted into the coordinate change speed (unit: coordinate points / second) according to the coordinate system scale.

[0099] Step S463: Real-time update of the printing area coordinates based on the coordinate change speed and the printing area coordinates.

[0100] Because the garment placement coordinates are dynamically changing with the coordinate change speed, the printing area coordinates are also dynamically changing, so the printing area coordinates need to be updated in real time.

[0101] The method also includes updating the printing area coordinates based on the lever device 6, which includes: Step S464: After the lever device 6 performs the corresponding operation, re-acquire the printing area overhead image information and define it as the corrected printing area overhead image information.

[0102] The lever device 6 can perform flattening, unfolding and back-pulling operations. The corrected printing area overhead image information refers to the printing area overhead image data re-acquired by the first image capture device 7 after the lever device 6 performs the corresponding operation. Because the garment placement position may change after the lever device 6 performs the corresponding operation, the corrected printing area overhead image information needs to be acquired.

[0103] Step S465: Determine the corrected garment placement coordinates based on the corrected printing area overhead image information and the garment to be printed.

[0104] The corrected clothes placement coordinates refer to the new position coordinates of the clothes on the loading plate 5 after the corresponding operation of the poking rod device 6 is performed, according to the re-acquired corrected overhead image information of the ironing area, combined with the features of the clothes to be ironed (such as collar, cuff, edge contour, and other key points) for image recognition and coordinate calculation. The coordinates correct the coordinate deviation caused by the deformation or movement of the clothes by comparing the image difference before and after the operation of the poking rod device 6. In specific implementation, the system first extracts the feature points of the clothes in the corrected overhead image, then performs spatial matching with the original clothes placement coordinates, calculates the coordinate offset through a geometric transformation algorithm (such as affine transformation), and finally generates the corrected clothes placement coordinates.

[0105] Step S466: determining the current ironing area coordinates based on the corrected clothes placement coordinates.

[0106] The current ironing area coordinates refer to the coordinate information of the ironing area in the coordinate system of the automatic loading pipeline ironing machine, which is recalculated according to the corrected clothes placement coordinates after the corresponding operation of the poking rod device 6 is performed. The current ironing area coordinates are determined by transforming the reference system and converting the coordinate values corresponding to the relative position of the corresponding ironing area in the reference system based on the clothes to be ironed to the coordinate system corresponding to the plane based on the loading plate 5, so as to accurately determine the current ironing area coordinates.

[0107] Step S467: obtaining the current clothes movement time when the current ironing area coordinates exist.

[0108] The current clothes movement time refers to the time spent from the completion of the corresponding flattening operation, unfolding operation, and back-poking operation of the poking rod device 6 to the determination of the current ironing area coordinates. During this process, the clothes are moving in real time, so the current clothes movement time needs to be obtained.

[0109] It needs to be supplemented here that the rotation of the roller 42 can be paused, and the rotation of the roller 42 is paused at the same time as the accumulation of the current clothes movement time is paused, so as to facilitate the execution of the corresponding operation of the poking rod device 6.

[0110] Step S468: real-time updating of the ironing area coordinates based on the current ironing area coordinates, the current clothes movement time, and the coordinate change speed.

[0111] After obtaining the current ironing area coordinates, the current clothes movement time, and the coordinate change speed, the system calculates the theoretical displacement of the clothes in the coordinate system since the completion of the operation of the poking rod device 6.

[0112] The method also includes a method for avoiding clothes overlap after the corresponding operation of the poking rod device 6 is performed, which includes: Step S469: Determine the risk garment placement coordinate range based on the garment placement coordinate and the to-be-ironed garment feature.

[0113] The risk garment placement coordinate range refers to the garment placement coordinate range in which the garment is likely to fall off the loading plate 5 according to the specific placement position of the garment on the loading plate 5 and the boundary position of the loading plate 5.

[0114] Step S470: When the corrected garment placement coordinate falls within the risk garment placement coordinate range, determine the corrected push rod control parameter, and control the push rod device 6 to perform the back-pushing operation according to the corrected push rod control parameter.

[0115] The corrected push rod control parameter refers to an optimized instruction set for safely back-pushing by adjusting the instruction parameters based on the original push rod control parameter in the case where the corrected garment placement coordinate falls within the risk garment placement coordinate range (i.e., the boundary region where the garment is likely to fall off). The back-pushing operation refers to the operation of pushing the part of the garment that is beyond the boundary region of the loading plate 5 back to the region of the loading plate 5. It should be noted that the ironing machine also has a discharging and stacking operation. During the stacking operation, specific push rod control parameters are determined according to the ironing region to avoid covering the ironing region during the stacking of the garments, which may damage the uncooled ironing region. In addition, the number of garments that have been ironed is counted after the stacking of the garments is completed to determine whether the current batch of ironing tasks is completed. The counting function is too simple, and the logic of the stacking operation and the back-pushing operation is similar, so this function will not be described in detail here. When the corrected garment placement coordinate falls within the risk garment placement coordinate range, the system will generate the corrected push rod control parameter according to the relative distance between the current position of the garment and the risk boundary, combined with the motion characteristics of the push rod device 6 (such as the maximum back-pushing amplitude and the back-pushing speed limit). The parameter includes the back-pushing direction (moving perpendicular to the risk boundary to the safe region), the back-pushing distance (ensuring that the garment completely leaves the risk range with the minimum displacement), and the dynamic speed curve (accelerating first and then decelerating to avoid shaking of the garment).

[0116] When the corrected garment placement coordinate falls within the risk garment placement coordinate range, it means that the garment may be close to or at the edge of the loading plate 5 after the operation, which has a risk of falling. At this time, the system will dynamically generate the corrected push rod control parameter to pull the garment back to the safe region according to the relative position relationship between the corrected garment placement coordinate and the risk garment placement coordinate range.

[0117] Step S471: After performing the back-pushing operation, collect the side view image information and the overhead view image information of the ironing region to determine the garment overlapping region.

[0118] The clothing overlapping area refers to the situation that the ironing area and its periphery may be overlapped by clothing due to the movement and possible deformation of the clothing after the ironing operation is performed. In order to accurately identify these overlapping areas, the system will simultaneously collect side view image information and overhead view image information of the ironing area.

[0119] Step S472: performing steps S450 to S453 when the clothing overlapping area exists.

[0120] When the clothing overlapping area exists, the unfolding operation needs to be performed to eliminate the unevenness problem caused by the overlapping, so steps S450 to S453 are performed.

[0121] The method also includes a verification method for correcting the dial rod control parameters, which includes: Step S4700: determining the predicted clothing overlapping area based on the corrected dial rod control parameters.

[0122] The predicted clothing overlapping area refers to the possible overlapping area of the clothing on the feeding plate 5 after the dial rod device 6 performs the ironing operation, according to the instruction set in the corrected dial rod control parameters (including the dial rod movement path, the pressing force, the action time, etc.), and the historical data of the ironing operation of the same type of clothing.

[0123] Step S4701: determining the ironing coverage state based on the ironing area when the predicted clothing overlapping area exists.

[0124] The ironing coverage state refers to the situation that the system needs to further determine whether the overlapping area will affect the coverage of the ironing area when the predicted clothing overlapping area exists.

[0125] Step S4702: re-determining the corrected dial rod control parameters when the ironing coverage state exists.

[0126] If the ironing coverage state does not exist, it means that the ironing area will not be affected by the clothing overlapping, so there is no need to control the dial rod device 6 to perform the unfolding operation. When the ironing coverage state exists, it means that the ironing area will be affected by the clothing overlapping, resulting in that the ironing pattern cannot be completely covered on the target area. At this time, the system needs to re-determine the corrected dial rod control parameters according to the specific position and range of the predicted clothing overlapping area, and combine the design requirements of the ironing pattern, to ensure that the dial rod device 6 performs the ironing operation without causing the ironing area to be covered by the clothing overlapping.

[0127] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and refinements without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A heat transfer printing method, characterized in that, include: Step S1: In response to a preset feeding signal, the feeding signal includes the size information of the garment to be heat-printed and the fabric pattern information corresponding to the garment to be heat-printed; Step S2: Obtain the image information of the garment to be heat-transferd; Step S3: Analyze the image information of the garment to be heat-transferd to determine the heat-transfer area; Step S4: Determine the wrinkle state of the heat transfer area based on the heat transfer area; Step S5: When there are wrinkles in the heat transfer area, generate lever control parameters based on the heat transfer area, and control the lever device (6) to perform the flattening operation according to the lever control parameters; Step S6: Obtain the heat transfer pattern parameters corresponding to the garment to be heat-transferred; Step S7: Develop a heat transfer scheme based on the heat transfer area and heat transfer pattern parameters, and perform the heat transfer operation according to the heat transfer scheme.

2. The heat transfer printing method according to claim 1, characterized in that, Methods for determining the wrinkle state of a heat transfer area based on the heat transfer area include: Step S40: Collect top view image information of the heat transfer area, which is used to determine the texture features of the heat transfer area; Step S41: Determine the features of the garment to be heat-printed based on the image information of the garment to be heat-printed; Step S42: Determine the relative position of the heat transfer area based on the characteristics of the garment to be heat-transferred, the size information of the garment to be heat-transferred, and the heat transfer area; Step S43: Determine the texture features of the expected heat transfer area based on the relative position of the heat transfer area and the fabric pattern information; Step S44: Analyze the texture features and texture characteristics of the expected heat transfer area to determine the texture feature deviation value; Step S45: When the texture feature deviation value is less than the preset minimum texture feature deviation value, output the preset wrinkle-free signal; Step S46: Determine the wrinkle state of the heat transfer area when the texture feature deviation value is greater than the minimum texture feature deviation value.

3. The heat transfer printing method according to claim 1, characterized in that, The method for generating lever control parameters based on the heat transfer area when there are wrinkles in the heat transfer area includes: Step S50: Collect side view image information of the heat transfer area, which is used to determine the three-dimensional height undulation data of the heat transfer area; Step S51: Obtain the planar height and maximum height of the heat transfer area; Step S52: Determine the three-dimensional height fluctuation data based on the plane height and maximum height; Step S53: When the three-dimensional height fluctuation data falls within the preset stable fluctuation data range, dust and impurities are identified; Step S54: When the three-dimensional height fluctuation data does not fall within the range of stable fluctuation data or there are dust impurities, generate lever control parameters according to the heat transfer area, and control the lever device (6) to perform the flattening operation according to the lever control parameters.

4. The heat transfer printing method according to claim 3, characterized in that, It also includes a method for handling situations where wrinkles remain in the heat transfer area after the flattening operation is performed, the method comprising: Step S55: Reacquire the three-dimensional height fluctuation data corresponding to the heat transfer area and define it as corrected three-dimensional height fluctuation data; Step S56: Determine the fold boundary coordinates corresponding to the heat transfer area when the corrected three-dimensional height fluctuation data does not fall within the range of stable fluctuation data; Step S57: Determine the coordinates of the fold center point based on the fold boundary; Step S58: Perform a preset lifting operation based on the coordinates of the fold center point to make the height corresponding to the coordinates of the fold center point exceed the height corresponding to the fold boundary. Step S59: When performing the lifting operation, generate lever control parameters based on the fold boundary coordinates, and control the lever device (6) to perform the flattening operation according to the lever control parameters.

5. A heat transfer printing method according to claim 2, characterized in that, It also includes a method for not outputting a wrinkle-free signal when the texture feature deviation value is less than the minimum texture feature deviation value, the method comprising: Step S450: Collect side view image information of the heat transfer area, and obtain the planar height and maximum height of the heat transfer area to form three-dimensional height undulation data; Step S451: Output a wrinkle-free signal when the three-dimensional height fluctuation data falls within the range of stable fluctuation data; Step S452: Determine the height fluctuation point when the three-dimensional height fluctuation data does not fall within the range of stable fluctuation data, and output the preset clothing folding signal; Step S453: In response to the clothing folding signal, generate lever control parameters based on the height undulation point and the heat transfer area, and control the lever device (6) to perform the clothing unfolding operation according to the lever control parameters.

6. The heat transfer printing method according to claim 5, characterized in that, It also includes a method for updating the heat transfer area, which includes: Step S460: Obtain the clothing placement coordinates, which are coordinate points in a coordinate system established with the upper material plate (5) as the reference; Step S461: Determine the coordinates of the heat transfer area based on the relative position of the heat transfer area and the coordinates of the clothing placement; Step S462: Obtain the current movement speed of the clothing and convert it into the coordinate change speed; Step S463: Update the coordinates of the heat transfer area in real time based on the coordinate change rate and the coordinates of the heat transfer area.

7. A heat transfer printing method according to claim 6, characterized in that, It also includes a method for updating the coordinates of the heat transfer area based on the lever device (6), the method comprising: Step S464: After the lever device (6) performs the corresponding operation, it re-acquires the top view image information of the heat transfer area and defines it as the corrected top view image information of the heat transfer area; Step S465: Determine the placement coordinates of the garment to be modified based on the top view image information of the area to be modified and the characteristics of the garment to be modified; Step S466: Determine the coordinates of the current heat transfer area based on the corrected clothing placement coordinates; Step S467: If the coordinates of the current heat transfer area exist, obtain the current clothing movement time; Step S468: Update the coordinates of the heat transfer area in real time based on the current coordinates of the heat transfer area, the current movement time of the clothing, and the speed of coordinate change.

8. A heat transfer printing method according to claim 7, characterized in that, It also includes a method to avoid overlapping of clothing after performing a flattening operation, the method comprising: Step S469: Determine the range of risky clothing placement coordinates based on the clothing placement coordinates and the characteristics of the clothing to be ironed; Step S470: When the corrected clothing placement coordinates fall within the risk clothing placement coordinate range, determine the correction lever control parameters, and control the lever device (6) to perform a return operation according to the correction lever control parameters; Step S471: After performing the rollback operation, acquire the side view image information and top view image information of the heat transfer area to determine the overlapping area of ​​the clothing; Step S472: When there is an area of ​​overlapping clothing, proceed from step S450 to step S453.

9. A heat transfer printing method according to claim 8, characterized in that, It also includes a verification method for correcting the lever control parameters, which includes: Step S4700: Determine the expected clothing overlap area based on the correction lever control parameters; Step S4701: When there is a predicted area of ​​overlapping clothing, determine the heat transfer coverage state based on the heat transfer area; Step S4702: When heat transfer printing is present, re-determine the control parameters of the correction lever.

10. An automatic feeding assembly line heat press machine, applied to a heat press method as described in any one of claims 1 to 9, characterized in that: It includes a workbench (1), a transmission device (2), a heat transfer device (3), a feeding device (4), a loading plate (5), a lever device (6), a first image capture device (7), and a second image capture device (8); The transmission device (2) is fixedly connected to one end of the workbench (1). The first image capturing device (7) is installed on the transmission device (2) and moves horizontally through the transmission device (2) to collect top-view image information of the heat transfer area. The heat transfer device (3) moves horizontally through the transmission device (2). The feeding device (4) is fixedly connected to one end of the workbench (1) near the transmission device (2). The loading plate (5) is laid on the end of the feeding device (4) away from the workbench (1). The end of the garment to be heat-printed is provided with a lifting plate (51), which is used to lift the garment to be heat-printed. The feeding plate (5) is moved from one end of the transmission device (2) to the other end by the feeding device (4). The lever device (6) is fixedly connected to one end of the workbench (1) near the transmission device (2) and is used to move the garment to be heat-printed on the feeding plate (5). The second image capture device (8) is fixed to one end of the lever device (6) to collect side view image information of the heat-printing area.

Images