A dyeing and weaving system and a control method thereof, an electronic device and a storage medium

Abstract

The application discloses a dyeing and weaving system and a control method thereof, an electronic device and a storage medium, and relates to the fields of textile engineering and intelligent manufacturing. The control method comprises the following steps: establishing a mapping relationship model from a pattern pixel or a needle eye to a continuous yarn length coordinate based on a target fabric pattern, and obtaining a color segment plan distributed along the yarn length based on the mapping relationship model; obtaining a linear speed and a displacement of yarn movement in real time; calculating a trigger timing of each nozzle based on the displacement, the color segment plan and the physical position of each nozzle to realize the same point and color combination; rotating the yarn around its own axis; fixing the dyed yarn based on a fixing module; obtaining a real-time beat of a weaving device, and adjusting the tension of the yarn delivered to the weaving device by a rear tension buffer module based on the real-time beat. The rear tension buffer module dynamically adjusts the delivery tension according to the real-time beat of the weaving device, and decouples the beat conflict between the front-end continuous dyeing and the rear-end intermittent weaving.

Description

Technical Field

[0001] This application relates to the fields of textile engineering and intelligent manufacturing, and in particular to a dyeing and weaving system and its control method, electronic equipment and storage medium. Background Technology

[0002] Traditional colored fabric production usually adopts the method of "dyeing before weaving" or using multiple colored yarns to weave alternately. This method has significant disadvantages such as large raw material inventory, frequent yarn changing operations, difficulty in achieving continuous and smooth color transition, and heavy environmental burden in the production process.

[0003] Although online inkjet dyeing technology has been proposed, it still faces many challenges in practical applications, such as the difficulty in ensuring uniform ink distribution around the yarn, the synchronization of rhythm and tension stability between continuous dyeing and intermittent weaving processes, and how to accurately map complex fabric patterns onto the length of continuously moving yarns. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a dyeing and weaving system and its control method, electronic device, and storage medium to solve technical problems in the prior art, such as uneven circumferential ink application to yarns, mismatch between continuous dyeing and intermittent weaving rhythms, and insufficient pattern-to-yarn mapping accuracy. This enables the precise generation of multi-color segments on a single continuous yarn according to the target fabric pattern and efficient coordination with the weaving process.

[0005] The first technical solution adopted in this application is: providing a control method for a dyeing and weaving system, the control method comprising:

[0006] Based on the target fabric pattern, establish a mapping relationship model from pattern pixels or needle size to continuous yarn length coordinates, and obtain the color segment plan distributed along the yarn length based on the mapping relationship model;

[0007] The linear velocity and displacement of the yarn movement are acquired in real time; based on the displacement, the color segment plan, and the physical position of each nozzle, the triggering sequence of each nozzle is calculated to achieve color matching at the same point; and the yarn is controlled to rotate around its own axis, with the rotation sequence synchronized with the color matching sequence to achieve uniform ink reception in the circumferential direction.

[0008] The color-fixing module is used to fix the ink-received yarn; the linear velocity and ink amount of the yarn to be fixed are obtained and the working parameters of the color-fixing module are adjusted to achieve uniform color fixation.

[0009] The real-time rhythm of the weaving equipment is obtained, and the subsequent tension buffer module adjusts the tension of the yarn delivered to the weaving equipment based on the real-time rhythm.

[0010] In an optional embodiment, establishing the mapping relationship model further includes a real-time correction step, the real-time correction step including:

[0011] The dynamic correction coefficient is determined based on the tension in the dyeing zone and the tension in the weaving zone;

[0012] The initial mapping relationship is corrected based on the dynamic correction coefficients to obtain the mapping relationship model.

[0013] In an optional embodiment, color matching at the same point is achieved by calculating the triggering sequence of each nozzle based on delay compensation, which includes:

[0014] Calculate the flight time of the ink droplet from the nozzle to the yarn surface, the flight time being determined based on the distance between the printhead and the yarn and the droplet velocity;

[0015] Obtain the inherent electrical and mechanical delay times of the nozzle;

[0016] Calculate the geometric offset delay time caused by different physical layout of the nozzle array; the delay compensation time is the flight time + the electrical and mechanical delay time + the geometric offset delay time; adjust the trigger timing based on the delay compensation time to achieve multi-nozzle same-point color control.

[0017] In an optional embodiment, in the step of controlling the rotation of the yarn to be dyed around its own axis, the ratio of the angular velocity of the yarn rotation to the linear velocity is constant; the ratio is dynamically adjusted based on the target circumferential coverage and the ink droplet overlap rate.

[0018] In an optional embodiment, the color-fixing module performs the color-fixing step including:

[0019] The color-fixing module is divided into multiple independent temperature-controlled zones along the yarn travel direction; the dwell time of the yarn in each temperature-controlled zone is calculated in real time based on the linear velocity.

[0020] The dye fixation rate of yarns passing through different temperature control zones is obtained based on the dwell time, ink absorption rate, and color fixation curve.

[0021] By adjusting the operating parameters of each temperature control zone based on the yarn fixation rate, uniform fixation can be achieved.

[0022] In an optional embodiment, the step of controlling the subsequent tension buffer module includes:

[0023] Real-time monitoring of the actual tension value of the yarn being fed to the weaving equipment;

[0024] Using the real-time cycle time of the weaving equipment and the tension of the weaving zone as set values, the working state of the subsequent tension buffer module is adjusted to achieve effective decoupling between continuous dyeing and intermittent weaving.

[0025] In an optional embodiment, the control method further includes acquiring the operating status of the weaving equipment, and in response to the weaving equipment stopping, temporarily storing the yarn in the subsequent tension buffer module and stopping the feeding.

[0026] The second technical solution adopted in this application is: providing a dyeing and weaving system, including:

[0027] The feeding module is used to feed yarn.

[0028] The dyeing execution module receives the yarn from the feeding module and dyes it; the dyeing execution module includes a nozzle array for dyeing the yarn and a rotary drive device for driving the yarn to rotate around its own axis.

[0029] The color-fixing module is connected to the dyeing execution module and is used to fix the color of the yarn after it has been dyed.

[0030] The post-tension buffer module is connected to the color-fixing module to receive the color-fixed yarn and to feed the yarn to the weaving equipment;

[0031] The control unit is connected to the feeding module, the dyeing execution module, the color fixing module, and the post-tension buffer module respectively; the control unit controls the working state of the feeding module, the dyeing execution module, the color fixing module, and the post-tension buffer module to realize the control method of the dyeing and weaving system as described above.

[0032] The third technical solution adopted in this application is: providing an electronic device, the electronic device comprising: a memory and a processor coupled to each other, the processor being used to execute program instructions stored in the memory to implement the control method of the dyeing and weaving system as described in any of the preceding claims.

[0033] The fourth technical solution adopted in this application is: providing a computer-readable storage medium that stores program data, which can be executed by a processor to implement the control method of the dyeing and weaving system as described in any of the preceding claims.

[0034] Due to the adoption of the above technical solution, this application has at least one of the following beneficial effects compared with the prior art:

[0035] 1. By controlling the yarn to rotate around its own axis and synchronizing with the triggering sequence of the printhead, it ensures that the yarn can be uniformly inked 360 degrees during the dyeing process, solving the problem of insufficient ink on the back of the yarn in traditional inkjet dyeing and improving the uniformity and consistency of dyeing.

[0036] 2. By calculating multiple delay compensations such as droplet flight time, printhead inherent delay, and geometric offset delay, the triggering sequence of each printhead is accurately calculated, enabling droplets of different colors to meet at the same position on the yarn, achieving high saturation and high precision color synthesis, and improving the ability to reproduce the details of the pattern.

[0037] 3. Through the post-stage tension buffer module, the tension of the conveyed yarn is dynamically adjusted according to the real-time cycle of the weaving equipment and the tension setting value of the weaving zone. This effectively absorbs the impact of the intermittent operation of the weaving equipment on the continuous dyeing process, ensuring the smooth operation of the entire system and the stability of the yarn tension.

[0038] 4. By dividing the color-fixing module into multiple independent temperature control zones and calculating the residence time of the yarn in each zone in real time based on the yarn linear velocity, the working parameters of each temperature control zone are dynamically adjusted according to the color-fixing rate, thus achieving precise and uniform color-fixing of yarns with different ink absorption amounts and ensuring dyeing quality. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0040] Figure 1 A schematic flowchart illustrating a control method for a dyeing and weaving system provided in an embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the framework of a dyeing and weaving system provided in an embodiment of this application;

[0042] Figure 3 This is a schematic diagram of the structure of a computer device according to an embodiment of this application;

[0043] Figure 4 This is a schematic diagram of the structure of an embodiment of the computer-readable storage medium of this application. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0046] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0047] In existing technologies, yarn dyeing often suffers from problems such as uneven circumferential ink distribution, difficulty in accurately matching colors at the same point on moving yarns by multi-color printheads, and tension fluctuations caused by mismatch between continuous dyeing and intermittent weaving rhythms. In view of this, this application improves the uniformity, consistency, and ability to reproduce pattern details by synchronizing rotation timing and inkjet timing, accurately calculating multi-printhead delay compensation, and adjusting tension based on real-time rhythm.

[0048] like Figure 1 As shown, Figure 1 This is a flowchart illustrating a control method for a dyeing and weaving system according to an embodiment of this application. The control method includes the following steps:

[0049] S11: Establish a mapping model from pattern pixels or needle counts to continuous yarn length coordinates based on the target fabric pattern. The target fabric pattern can be obtained from Photoshop, CAD, knitting CAM software, etc., without any limitations. The target fabric pattern is a two-dimensional raster image or vector pattern of pixel array. For knitting / weaving, it can also be a needle count image, that is, the color and position information corresponding to each knitting action.

[0050] Each pixel or stitch in the two-dimensional pattern is sequentially unfolded into a one-dimensional yarn length range, i.e., a continuous yarn length coordinate; the actual yarn tension differs between the dyeing and weaving areas, resulting in elongation differences; establishing the mapping relationship model also includes a real-time correction step, which includes:

[0051] The dynamic correction coefficient is determined based on the tension in the dyeing zone and the tension in the weaving zone;

[0052] The initial mapping relationship is corrected based on the dynamic correction coefficient to obtain the mapping relationship model.

[0053] The mapping relationship model obtained by using dynamic correction coefficients avoids pattern elongation or compression caused by uneven yarn stretching, ensuring that the final fabric pattern is not distorted.

[0054] Based on the mapping relationship model, the color segment plan is obtained by deriving the color function along the yarn length. The color function is in the form of , indicating that in a length of The area displays color .

[0055] The generated color segment plan is at the boundary of color abrupt change. Direct switching can easily lead to color gradation jumps or color blurring. Color gradation jumps or color blurring can be avoided by inserting a gradient transition segment. For example, in this embodiment, the length range is 0-10mm for white, 10-35mm for red, 35-37mm for purple, and 37-60mm for blue. Color difference is avoided by inserting a 2mm long purple transition segment.

[0056] By using a mathematical mapping from pixel / needle length to yarn length, the completeness of the design pattern reproduction on the fabric is ensured. The dynamic correction coefficient enables the system to adapt to different tension conditions, ensuring that the pattern remains consistent even under high speed, start-stop, and loom rhythm changes.

[0057] S12: Real-time acquisition of the linear velocity and displacement of the yarn movement. In this embodiment, the linear velocity and displacement of the yarn movement are acquired in real time through an encoder; specifically, the control unit acquires the displacement based on real-time integration. Linear velocity is obtained based on real-time differentiation. Linear velocity of yarn movement and displacement It serves as the time-space reference for all timing controls, including nozzle triggering, rotation control, and color fixing.

[0058] Based on displacement, color segment planning, and the physical position of each nozzle, the triggering sequence of each nozzle is calculated to achieve color merging at the same point; the displacement to be acquired... Substitute into the above color function The system obtains the current dyeing location and dyeing type; however, there is an unavoidable time difference between the printhead receiving the trigger signal and the ink droplet reaching the yarn. To accurately control the timing of the ink droplet arrival at the yarn, the system calculates the triggering sequence of each printhead based on delay compensation to achieve color matching at the same point, including:

[0059] The flight time of the ink droplet from the nozzle to the yarn surface is calculated. The flight time is determined based on the distance between the printhead and the yarn and the droplet velocity. In other words, the flight time is the time required for the ink droplet to travel from the nozzle to the yarn surface.

[0060] Obtain the inherent electrical and mechanical delay times of the printhead. These delay times can be provided by the printhead manufacturer or calibrated experimentally, and are typically [value missing]. .

[0061] Calculate the geometric offset delay time caused by different physical layouts of the nozzle array.

[0062] The delay compensation time is the flight time + electrical and mechanical delay time + geometric offset delay time; the trigger timing is adjusted based on the delay compensation time to achieve multi-head same-point color control, that is, the spray command is issued in advance after the delay compensation time, so that all color ink droplets meet precisely when the yarn travels to the current dyeing position, and complete a pixel-level dyeing.

[0063] It controls the yarn to rotate around its own axis, and the rotation timing is synchronized with the color mixing timing at the same point to achieve uniform ink reception in the circumference; in this embodiment, the yarn is rotated based on a hollow shaft servo motor, that is, the yarn passes through the hollow shaft, and the motor drives the yarn to rotate around its own axis at a uniform or variable speed; the speed of the hollow shaft servo motor is adjustable and there is no limitation on it.

[0064] In the step of controlling the rotation of the yarn to be dyed around its own axis, the angular velocity of the yarn rotation... With linear velocity The ratio is constant, but dynamically adjusted based on the target circumferential coverage and droplet overlap rate. In other words, the ratio is determined based on the target circumferential coverage and droplet overlap rate. For different target circumferential coverage and droplet overlap rates, the angular velocity of the yarn rotation can be adjusted. With linear velocity The ratio is achieved by keeping the ratio of the angular velocity to the linear velocity of the yarn constant to ensure that the ink droplets are evenly distributed on the circumference of the yarn, avoiding darker colors on the sides and lighter colors on the back.

[0065] Traditional inkjet printing can only dye one side of the yarn. This application ensures uniform coloring at 360° by rotation, eliminating the problem of white on the back and improving the consistency of the front and back of the fabric. When the linear speed changes, the jet delay and rotation speed are automatically adjusted to maintain stable dyeing quality and are compatible with the start / stop and speed change rhythm of knitting / weaving. For example, in one embodiment, a smooth gradient of red → orange → yellow → green → blue → indigo → violet is required on a single yarn.

[0066] Encoder monitors yarn displacement in real time The control system dynamically adjusts the CMYK (Cyan-Magenta-Yellow-Key) spray ratio within every 1 mm length according to the color segment plan.

[0067] Each color printhead is triggered with a precise delay, based on the delay compensation time, to ensure that the ink droplets mix at the same point on the yarn surface; the yarn rotates at a constant ratio of angular velocity to linear velocity, so that the rainbow color band evenly wraps around the entire yarn.

[0068] Step S13: Fix the ink-treated yarn using the color-fixing module; obtain the linear velocity and ink amount of the yarn to be fixed and adjust the working parameters of the color-fixing module to achieve uniform color fixing; the color-fixing steps of the color-fixing module include:

[0069] The color-fixing module is divided into multiple independent temperature-controlled zones along the yarn travel direction; the entire color-fixing channel is divided into 3–5 independent temperature-controlled zones (such as preheating zone, main color-fixing zone, and setting and cooling zone); each zone is equipped with an independent heating element (PTC, heating wire), temperature sensor (PT100), and wind speed adjustment device.

[0070] The residence time of the yarn in each temperature control zone is calculated in real time based on the linear velocity; the amount of ink received is obtained based on the number of ink droplets per unit length in the color segment plan multiplied by the volume of a single droplet.

[0071] The fixation rate of yarn passing through different temperature control zones is obtained based on dwell time, ink absorption rate, and fixation curve; the fixation curves of different inks are adjusted accordingly by referring to the pre-stored "temperature-time-fixation rate" relationship model.

[0072] The working parameters of each temperature control zone are adjusted based on the yarn fixation rate to achieve uniform fixation; the yarn fixation rate of different temperature control zones is obtained and compared with the fixation rate threshold. If the yarn fixation rate is less than the fixation rate threshold, the temperature and / or wind speed of the corresponding temperature control zone are increased.

[0073] For example, when the yarn enters a high-density red pattern area (where M+Y accounts for a high proportion of CMYK and the ink volume is large): a significant increase in ink absorption rate is detected; the temperature of the temperature control zone is automatically increased and the airflow is increased to ensure that the ink fully penetrates and the cross-linking reaction is completed.

[0074] To avoid external burning and internal dampness or insufficient color fixation, ensure that each section of yarn, regardless of color depth or ink amount, is fully cured to improve color fastness and hand feel consistency; adjust temperature and air speed as needed to avoid high-temperature operation throughout the entire section; reduce rework or waste caused by poor color fixation.

[0075] Weaving rhythm is the periodic, non-continuous rhythm of movement of a loom during operation, for example:

[0076] Knitting machine: The cam system drives the needles to complete the cycle of "loosening loop → padding yarn → closing loop → looping → loop formation";

[0077] Rapier / air jet loom: weft insertion → beat-up → shedding change, forming a reciprocating motion.

[0078] Step S14: Obtain the real-time cycle time of the weaving equipment. In this embodiment, the weaving equipment is a loom, i.e., obtain the current phase and cycle time of the loom to predict the yarn demand; the subsequent tension buffer module adjusts the tension of the yarn delivered to the weaving equipment based on the real-time cycle time; the steps for controlling the subsequent tension buffer module include:

[0079] Real-time monitoring of the actual tension value of the yarn delivered to the weaving equipment is used to obtain the tension of the yarn after color fixing.

[0080] Using the real-time cycle time and weaving zone tension of the weaving equipment as set values, the working state of the subsequent tension buffer module is adjusted to achieve effective decoupling between continuous dyeing and intermittent weaving. Before the yarn enters the loom, the relationship between the tension of the yarn after color fixing and the tension of the weaving zone is determined. If the tension of the yarn after color fixing is less than the tension of the weaving zone, the output tension is increased; if the tension of the yarn after color fixing is greater than the tension of the weaving zone, the output tension is decreased.

[0081] Before the weaving equipment reaches the loop-forming or weft insertion stage, the yarn feeding speed is increased in advance; when the loom changes direction or stops, the pull-back function is activated to prevent yarn accumulation; the subsequent tension buffer module absorbs excess yarn length to prevent accumulation.

[0082] For example, when the knitting machine enters the high-speed loop-forming stage: the cycle signal indicates that it is about to enter a high yarn consumption cycle. At this time, the tension of the yarn after color fixing is less than the tension of the weaving area. The subsequent tension buffer module increases the traction in advance and increases the output tension to the tension of the weaving area; the buffer guide wheel descends and releases the pre-stored yarn to ensure that there is no delay in yarn supply.

[0083] The control method also includes acquiring the operating status of the weaving equipment, and in response to the weaving equipment stopping, temporarily storing the yarn in the subsequent tension buffer module and simultaneously stopping the feeding. If the loom suddenly stops:

[0084] The system detected a clock interruption;

[0085] The front-end dyeing process continues, the yarn is temporarily stored in the buffer, and feeding is stopped.

[0086] The output tension is reduced to 0 to prevent yarn breakage.

[0087] The post-stage tension buffer module resolves the fundamental contradiction between continuous inkjet printing at the front end and periodic yarn consumption at the back end, ensuring stable operation throughout the entire process. Through dynamic adjustment and buffer absorption, it avoids sudden tension changes caused by variations in the loom's rhythm, significantly improving weaving yield.

[0088] In summary, the control method of this embodiment includes: establishing a mapping model from pattern pixels or needle counts to continuous yarn length coordinates based on the target fabric pattern; obtaining a color segment plan distributed along the yarn length based on the mapping model; acquiring the linear velocity and displacement of the yarn movement in real time; calculating the triggering sequence of each nozzle to achieve color matching based on the displacement, color segment plan, and physical position of each nozzle; controlling the yarn to rotate around its own axis; fixing the yarn after ink application using a color-fixing module; acquiring the real-time cycle time of the weaving equipment; and adjusting the tension of the yarn supplied to the weaving equipment by a subsequent tension buffer module based on the real-time cycle time. By dynamically adjusting the supply tension according to the real-time cycle time of the weaving equipment through the subsequent tension buffer module, the cycle time conflict between the front-end continuous dyeing and the back-end intermittent weaving is decoupled.

[0089] like Figure 2 As shown, Figure 2 A schematic diagram of the framework of a dyeing and weaving system provided in an embodiment of this application includes:

[0090] Feeding module, used to transport yarn.

[0091] The dyeing execution module receives the yarn from the feeding module and performs dyeing; the dyeing execution module includes a nozzle array for dyeing the yarn and a rotary drive device for driving the yarn to rotate around its own axis.

[0092] The color-fixing module is connected to the dyeing execution module and is used to fix the color of the yarn after it has been dyed.

[0093] The post-tension buffer module is connected to the color-fixing module to receive the color-fixed yarn and to feed the yarn to the weaving equipment.

[0094] The control unit is connected to the feeding module, dyeing execution module, color fixing module, and post-tension buffer module respectively; the control unit controls the working state of the feeding module, dyeing execution module, color fixing module, and post-tension buffer module to achieve the control method of the dyeing and weaving system as described above.

[0095] Regarding the above embodiments, this application provides a computer device; please refer to [link / reference]. Figure 3 , Figure 3 This is a schematic diagram of the structure of a computer device according to an embodiment of the present application. The computer device includes a memory and a processor, wherein the memory and the processor are coupled to each other. The memory stores program data, and the processor executes the program data to implement the steps of any embodiment of the control method for the dyeing and weaving system described above.

[0096] In this embodiment, the processor may also be referred to as a CPU (Central Processing Unit). The processor may be an integrated circuit chip with signal processing capabilities. The processor may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor may be a microprocessor or any conventional processor.

[0097] The methods described in the above embodiments can be implemented as computer programs; therefore, this application proposes a computer-readable storage medium. Please refer to [link to relevant documentation]. Figure 4 , Figure 4 This is a schematic diagram of the structure of an embodiment of the computer-readable storage medium of this application. The computer-readable storage medium stores program data that can be executed by a processor to implement the steps of any embodiment of the control method for the dyeing and weaving system described above.

[0098] In this embodiment, the computer-readable storage medium can be a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, or a medium capable of storing program data. Alternatively, it can be a server storing the program data, which can send the stored program data to other devices for execution or run the stored program data itself.

[0099] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0100] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0101] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0102] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A control method of a dyeing and weaving system, characterized in that, The control method comprises: a mapping relationship model from pattern pixels or needle eyes to continuous yarn length coordinates is established based on a target fabric pattern, and a color segment plan distributed along the yarn length is obtained based on the mapping relationship model; the establishment of the mapping relationship model further comprises a real-time correction step, which comprises: determining a dynamic correction coefficient based on the tension of the dyeing area and the tension of the weaving area; correcting the initial mapping relationship based on the dynamic correction coefficient to obtain the mapping relationship model; the linear speed and displacement of yarn movement are obtained in real time; based on the displacement, the color segment plan and the physical position of each nozzle, the trigger timing of each nozzle is calculated to realize the same point color combination; and the yarn is controlled to rotate around its own axis, and the rotation timing is synchronized with the same point color combination timing to realize uniform ink receiving in the circumferential direction; the yarn after ink receiving is fixed by a fixing module; the linear speed and ink receiving amount of the yarn to be fixed are obtained, and the working parameters of the fixing module are adjusted to realize uniform fixing; the real-time rhythm of the weaving equipment is obtained, and the tension of the yarn delivered to the weaving equipment by the post-tension buffer module is adjusted based on the real-time rhythm; the step of controlling the post-tension buffer module comprises: real-time monitoring of the actual tension value of the yarn delivered to the weaving equipment; the real-time rhythm of the weaving equipment and the tension of the weaving area are taken as set values, and the working state of the post-tension buffer module is adjusted to realize effective decoupling between continuous dyeing and intermittent weaving; the real-time rhythm is the periodic and discontinuous action rhythm of the weaving equipment in the running process.

2. The control method according to claim 1, characterized by, the trigger timing of each nozzle is calculated based on delay compensation to realize the same point color combination, which comprises: calculating the flight time of ink droplets from the nozzle to the surface of the yarn, which is determined based on the distance between the nozzle and the yarn and the speed of the ink droplets; obtaining the inherent electrical and mechanical delay time of the nozzle; calculating the geometric bias delay time caused by the different physical layouts of the nozzle array; the delay compensation time is the flight time + the electrical and mechanical delay time + the geometric bias delay time; the trigger timing is adjusted based on the delay compensation time to realize multi-nozzle same point color combination control.

3. The control method according to claim 2, characterized by, In the step of controlling the yarn to be dyed to rotate around its own axis, the ratio of the angular velocity of the yarn rotation to the linear speed is constant; the ratio is dynamically adjusted based on the target circumferential coverage and the ink droplet overlap rate.

4. The control method according to claim 1, characterized by, The step of fixing by the fixing module comprises: dividing the fixing module into multiple independent temperature control areas along the direction of yarn travel; calculating the residence time of the yarn in each temperature control area in real time based on the linear speed; obtaining the yarn fixing rate through different temperature control areas based on the residence time, the ink receiving rate and the fixing curve; adjusting the working parameters of each temperature control area based on the yarn fixing rate to realize uniform fixing.

5. The control method according to claim 1, characterized by, The control method further comprises obtaining the working state of the weaving equipment, and in response to the shutdown of the weaving equipment, the yarn is temporarily stored in the post-tension buffer module and the feeding is stopped.

6. A dyeing and weaving system, characterized in that, It comprises: a feeding module based on the feeding of the yarn; a dyeing execution module receiving the yarn of the feeding module and performing dyeing; the dyeing execution module comprises a nozzle array for dyeing the yarn and a rotation driving device for driving the yarn to rotate around its own axis; The fixing module is connected with the dyeing execution module, and is used for fixing the yarn after dyeing; The post-tension buffer module is connected with the fixing module to receive the yarn after fixing, and is used for conveying the yarn to a weaving device; The control unit is connected with the feeding module, the dyeing execution module, the fixing module and the post-tension buffer module respectively; and the working states of the feeding module, the dyeing execution module, the fixing module and the post-tension buffer module are controlled based on the control unit to realize the control method of the dyeing and weaving system according to any one of claims 1-5.

7. An electronic device, comprising: The electronic device comprises a memory and a processor which are coupled with each other, and the processor is used for executing program instructions stored in the memory to realize the control method of the dyeing and weaving system according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium stores program data which can be executed by the processor to realize the control method of the dyeing and weaving system according to any one of claims 1-5.

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