Warp knitting tension adjusting system with ink jet dyeing function and operation method of warp knitting tension adjusting system

Abstract

The invention discloses a warp knitting tension adjusting system with ink jet dyeing, which belongs to the technical field of textile machinery, and comprises a tension compensator arranged at the top of a warp knitting machine frame and an ink jet system arranged at the front end of the tension compensator, the driving roller is driven by a driving mechanism to rotate and the rotating speed is adjustable; the ink jet system comprises an ink jet control terminal and an ink jet mechanism, the ink jet control terminal is a control circuit and is electrically or wirelessly connected to the warp knitting control terminal, and the ink jet mechanism is erected on the yarn.

Description

Technical Field

[0001] The present invention relates to the technical field of textile machinery, in particular to a warp knitting tension regulating system with inkjet dyeing and an operating method thereof. Background Art

[0002] With the continuous development of the textile industry, consumers are increasingly demanding higher aesthetics and functionality from fabrics. While traditional fabric dyeing methods, such as dip dyeing and spray dyeing, can achieve color changes, they often come with complex processes, high costs, and environmental impacts. Furthermore, these traditional methods can affect the fabric's feel and durability.

[0003] Despite its high production speed and flexibility, warp knitting still has certain limitations when it comes to color processing. Traditional warp knitting techniques are mostly limited to producing products with a single color or simple pattern. More complex designs or color gradients require additional dyeing or printing after weaving. This method not only increases production costs and complexity but can also lead to problems such as uneven dyeing.

[0004] To simplify the production process and reduce environmental pollution, the textile industry has been seeking methods to achieve color changes directly during the weaving process. For example, differentiated inkjet technology disperses pigments into tiny droplets through a spray gun or atomizer, spraying them evenly on the surface of the material to achieve a gradient effect from one color to another. However, this method is not only labor-intensive and material-intensive, but can also lead to environmental pollution and increased costs. On the other hand, while jacquard technology can create a gradient effect on fabrics through a combination of different yarns and stitches, its drawing efficiency is low and requires a lot of manual drawing operations, which prolongs the production cycle and makes the jacquard effect appear unnatural when viewed up close.

[0005] In recent years, the development of digital inkjet printing technology has led to its widespread application in the textile industry. The advantages of digital inkjet printing lie in its ability to achieve highly customized pattern designs and the ability to quickly change between different patterns, significantly increasing production flexibility. However, current inkjet printing technology is primarily used on finished fabrics, with relatively little research on direct color manipulation within the in-line production process.

[0006] Post-dyeing yarn treatment is also a crucial step. In traditional dyeing, changes in yarn moisture can cause tension and crimp to shift after dyeing, necessitating re-warping to restore yarn tension consistency and shape stability. This process not only adds steps to production but can also compromise final product quality.

[0007] In view of the above situation, how to directly achieve yarn color change during the warp knitting process and perform warping on the yarn after dyeing to ensure the tension consistency and morphological stability of the yarn has become an important technical problem that needs to be solved urgently in the current textile industry. Summary of the Invention

[0008] In order to solve the technical problem of realizing color processing in the online production process of the warp knitting field in the above-mentioned prior art, the present invention provides a warp knitting tension adjustment system with inkjet dyeing and an operating method thereof.

[0009] [The present invention discloses a warp knitting tension adjustment system with inkjet dyeing] A warp knitting tension adjustment system with inkjet dyeing includes a warp knitting machine for weaving yarns, and is characterized in that it includes a tension compensator arranged on the top of the warp knitting machine frame and at least one inkjet system arranged at the front end of the tension compensator, the inkjet system is equipped with a dye bin and a waste ink bin, and a warp knitting machine control terminal for controlling the warp knitting machine and the inkjet system to cooperate in performing yarn spray dyeing operations, wherein the yarn is transported to the tension compensator after spray dyeing for secondary tension adjustment to maintain the tension consistency of the yarn before and after spray dyeing, wherein the preferred number of inkjet systems is six.

[0010] Preferably, the tension compensator includes a transition roller, an adjusting roller and an active roller arranged in a curve from top to bottom. The active roller is driven to rotate by a driving mechanism and the rotation speed is adjustable. The tension compensator adjusts the tension of both the dyed and undyed yarns to maintain the consistency of the yarn tension.

[0011] Preferably, the inkjet system includes an inkjet control terminal and an inkjet mechanism. The inkjet control terminal is a control circuit and is electrically or wirelessly connected to the warp knitting machine control terminal. The inkjet mechanism is mounted on the yarn and receives instructions from the inkjet control terminal to print and dye the yarn. The inkjet mechanism includes an inkjet component for dyeing the yarn and a sliding component for driving the inkjet component to move adjustably.

[0012] Preferably, the inkjet assembly includes an inkjet head and an ink guide tube, the sliding assembly includes at least one group of sliding brackets, the sliding brackets are mounted on the yarn and the sliding brackets are composed of at least one sliding tube and a transmission belt, the inkjet head is slidably connected to the sliding bracket and is driven by the transmission belt to move laterally, and at least four nozzles are provided in the inkjet head, and the nozzles connect the inkjet head to the dye tanks of each color through ink guide tubes.

[0013] Preferably, a waste ink tank is provided at the bottom of the inkjet mechanism, and a dye drying device is provided at the rear end. The waste ink tank is connected to the waste ink bin through an ink drain pipe and is used to collect excess ink in the inkjet printing operation.

[0014] Preferably, a yarn guide mechanism is further provided at the bottom front end of the inkjet mechanism and the rear end of the active roller of the tension compensator, wherein the yarn is spray-dyed and woven in an orderly manner through the yarn guide mechanism.

[0015] Preferably, the yarn guide mechanism at the front end of the bottom of the inkjet mechanism is composed of a plurality of yarn threading holes or yarn guide needles; the yarn guide mechanism at the rear end of the active roller of the tension compensator is composed of a plurality of yarn guide needles.

[0016] Preferably, the adjusting roller is further provided with a plurality of wire pullers which are slidably connected to the adjusting roller. The wire pullers include a sliding sleeve portion and a fixing buckle for increasing the curvature of the yarn.

[0017] Preferably, adjustment mechanisms are provided at both ends of the adjusting roller, which are rotatably connected to the adjusting roller to drive the adjusting roller to adjust the yarn tension. A heating device is also provided inside the adjusting roller for secondary drying and shaping of the yarn.

[0018] [The present invention also discloses an operating method of a warp knitting tension adjustment system with inkjet dyeing] An operating method of a warp knitting tension adjustment system with inkjet dyeing: S1: The yarn is pulled out from the creel and / or the warp head respectively, passes through the inkjet mechanism in an orderly manner after passing through the yarn guide mechanism arranged at the front end of the bottom of the inkjet mechanism, and passes around the transition roller, the regulating roller and the active roller in a curve, and then enters the warp knitting machine through the yarn guide mechanism arranged at the rear end of the active roller to wait for weaving; S2: Turn on the warp knitting machine control terminal, which controls the warp knitting machine to pull the yarn and start knitting. At the same time, the tension compensator installed on the top of the warp knitting machine frame starts to adjust the yarn tension according to the instructions sent by the warp knitting machine control terminal; S3: The warp knitting machine control terminal sends a printing instruction to the inkjet control terminal. The inkjet control terminal converts the instruction into an inkjet control instruction and transmits it to the inkjet mechanism. The inkjet mechanism sprays dye at the specified position of the yarn bundle according to the inkjet control instruction. S4: The dyed yarn bundle is driven by the transmission mechanism of the warp knitting machine and passes through the air drying equipment at the rear end of the inkjet mechanism for preliminary drying. It then passes through the tension compensator for secondary tension adjustment before weaving. It is heated and shaped by the heated adjusting roller and the active roller before entering the warp knitting machine for weaving. S5: When the nozzle sprays dye on the yarn bundle, part of the ink dye sprayed outside the yarn bundle is collected into the waste ink bin through the waste ink tank and the ink discharge pipe arranged at the bottom of the waste ink tank.

[0019] Preferably, the warp knitting machine control terminal sends corresponding instructions to drive the tension compensator to rotate the active roller at a set rate and drive the transition roller and the adjusting roller to rotate. The adjusting device adjusts the distance between the adjusting roller and the active roller according to the set forward and backward movement to adjust the yarn tension. At the same time, the heating device arranged in the adjusting roller heats the adjusting roller.

[0020] Preferably, the inkjet mechanism controls the inkjet head to slide laterally on the sliding bracket according to instructions, and transmits the ink from the dye bin through each ink guide tube into the inkjet head through the nozzle, thereby spraying the designated position of the yarn bundle.

[0021] The beneficial effects of the present invention are: 1. Maintaining uniform tension: In the prior art, to ensure uniform yarn tension during the weaving process, a tensioner is used to adjust the yarn tension uniformity after the yarn is pulled from the creel / bobbin. However, in the present invention, the yarn is inkjet-dyed before being introduced into the warp knitting machine for weaving. During the process of passing through the inkjet dyeing mechanism, the yarn tension may vary to varying degrees due to friction between the yarn and the equipment in the inkjet dyeing mechanism and subtle differences in the degree of ink penetration during the dyeing process, resulting in tension differences between the yarns. Therefore, the present invention adds a tension compensator to the rear end of the inkjet mechanism to perform secondary uniform tension adjustment on the yarn. The tension compensator adopts a top-down curved arrangement and adapts to the tension requirements of different yarns through the adjustable rotation speed of the active roller. This design not only improves the consistency of yarn tension but also reduces quality problems caused by yarn tension fluctuations.

[0022] 2. Efficient Inkjet Dyeing: Through an integrated inkjet system, this invention enables precise color printing of yarn before it enters the warp knitting machine. The lateral movement of the inkjet head on a sliding support and the design of multiple nozzles ensure uniform color distribution and the realization of high-precision patterns.

[0023] 3. Reduce waste ink pollution: The present invention is provided with a waste ink tank and a waste ink bin, which effectively collects the excess ink generated during the spraying process, avoids pollution to the environment, and also reduces the waste of raw materials.

[0024] 4. Enhanced Yarn Stability: This invention incorporates a dye drying device at the rear end of the inkjet mechanism, allowing freshly dyed yarn to dry quickly, thereby maintaining yarn stability. Furthermore, the use of a heating device further enhances yarn shaping, ensuring yarn straightness during subsequent weaving.

[0025] 5. High degree of automation: The entire system is controlled by the warp knitting machine control terminal, which works closely with the inkjet control terminal to achieve automation of the inkjet dyeing process. This design not only improves production efficiency but also reduces errors caused by manual operation.

[0026] 6. Improve production flexibility: By changing the inkjet control instructions, the present invention can easily achieve design changes of different colors and patterns, greatly enhancing the flexibility of the production process and meeting the market demand for diversified products.

[0027] 7. Reduce production costs: Compared with traditional dyeing and warping processes, the present invention simplifies the process flow, reduces the breakage rate caused by uneven yarn tension, and thus reduces production costs.

[0028] In summary, the present invention provides an efficient, environmentally friendly, flexible and cost-effective warp knitting tension adjustment system, which is suitable for the growing demand of the modern textile industry for high-quality and personalized products. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 This is a structural schematic diagram of a warp knitting tension adjustment system with inkjet dyeing according to the present invention; Figure 2 This is a schematic diagram of the structure of a tension compensator for a warp knitting tension adjustment system with inkjet dyeing according to the present invention. Figure 1 ; Figure 3 This is a structural schematic diagram of an inkjet system of a warp knitting tension adjustment system with inkjet dyeing according to the present invention; Figure 4 This is a cross-sectional schematic diagram of an inkjet system of a warp knitting tension adjustment system with inkjet dyeing according to the present invention; Figure 5 This is a schematic diagram of the structure of a tension compensator for a warp knitting tension adjustment system with inkjet dyeing according to the present invention. Figure 2 ; Figure 6 The present invention is a flowchart of the operation method of a warp knitting finishing and adjustment system with inkjet dyeing.

[0030] Explanation of main figure marks: 1. Tension compensator; 11. Transition roller; 12. Adjusting roller; 13. Active roller; 14. Yarn guide mechanism; 15. Adjusting mechanism; 16. Heating device; 17. Driving mechanism; 18. Wire puller; 181. Sliding sleeve; 182. Fixing buckle; 2. Inkjet system; 21. Inkjet control terminal; 22. Inkjet mechanism; 221. Inkjet head; 222. Sliding bracket; 223. Ink guide tube; 224. Sliding tube; 225. Transmission belt; 226. Nozzle; 23. Dye drying device; 3. Waste ink tank; 4. Ink drain pipe; 5. Warp knitting machine control terminal; 6. Dye bin; 7. Waste ink bin. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings and examples, so that the present invention can fully understand how to apply technical means to solve technical problems and achieve technical effects, and thus implement the invention accordingly. It should be noted that, as long as no conflict exists, the various embodiments of the present invention and the various features of the embodiments can be combined with each other, and the resulting technical solutions are all within the scope of protection of the present invention.

[0032] Meanwhile, in the following description, for the purpose of explanation, many specific details are set forth to provide a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be implemented without the specific details herein or the specific manner described.

[0033] [A warp knitting tension adjustment system with inkjet dyeing according to the present invention] A warp knitting tension adjustment system with inkjet dyeing includes a warp knitting machine for weaving yarns, and is characterized in that it includes a tension compensator arranged on the top of the warp knitting machine frame and at least one inkjet system for dyeing the yarn after the tension is adjusted by the tension compensator. The inkjet system is equipped with a dye bin and a waste ink bin, and a warp knitting machine control terminal for controlling the warp knitting machine and the inkjet system to cooperate in performing yarn dyeing operations. After being dyed, the yarn is transported again to the tension compensator for secondary tension adjustment to maintain the tension consistency of the yarn before and after being dyed.

[0034] The system can be mainly divided into three parts, namely the control system, the tension adjustment system and the inkjet system 2, which are: Control system: The control system, i.e. the warp knitting machine control terminal 5, is respectively connected to the warp knitting machine, the tension adjustment system and the inkjet system 2 by circuit or wireless connection. Its function is to control the warp knitting machine to weave a warp knitted fabric with patterns according to a pre-designed pattern; send instructions to the tension adjustment system according to the process requirements, adjust the adjustment roller 12 back and forth, and adjust the spacing between the transition roller 11, the adjustment roller 12 and the active roller 13 to unify the tension of the yarn, so that the tension of the yarn during weaving is unified and meets the weaving process requirements; send instructions to the inkjet system 2 according to the design requirements, so that the inkjet system 2 performs inkjet dyeing on the yarn bundle passing through the inkjet system 2 according to the design, so that the yarn bundle is printed with the specified pattern color.

[0035] Those skilled in the art should be aware that the yarn bundle mentioned here refers to a certain number of yarns pulled out from the yarn frame or the disc head and densely arranged laterally. The specific number of yarns in a single yarn bundle will vary due to changes in the number of inkjet systems 2 set on the warp knitting machine and the process requirements.

[0036] Tension adjustment system: The tension adjustment system, namely the tension compensator 1, is mounted on the upper end of the warp knitting machine frame. The tension compensator 1 arranges the transition roller 11, the adjusting roller 12 and the active roller 13 in a curve from top to bottom. When the warp knitting machine is threaded with yarn, the yarn passes through the transition roller 11, the adjusting roller 12 and the active roller 13 once and then enters the warp knitting machine. During weaving, the yarn is pulled out from the yarn frame and / or the disk head respectively. The active roller 13 adjusts the rotation speed through the driving mechanism 17 according to the yarn feeding rate sent by the warp knitting machine control terminal 5, so that all yarns can be fed into the warp knitting machine at a uniform speed for weaving. When the yarn is pulled into the warp knitting machine, the yarn pulling force will deviate due to factors such as static electricity and the kinetic energy response time of the equipment. At the same time, the tension of the yarn after being impregnated with ink will also change. However, yarns with different tensions are prone to yarn breakage during the densely arranged warp knitting process. Therefore, the yarns after spray dyeing need to undergo secondary tension adjustment to keep the tension consistent and ensure production quality. Therefore, the adjustment mechanisms 15 set at both ends of the adjusting roller 12 push or pull the adjusting roller 12 according to the adjustment instructions sent by the warp knitting machine control terminal 5, so that the adjusting roller 12 can adjust the front and rear distance between the transition roller 11 and the active roller 13 to adjust the distance between the adjusting roller 12 and the transition roller 11 and the active roller 13. At the same time, a number of wire pullers 18 are also provided on the adjusting roller 12, and the wire pullers 18 can be horizontally moved relative to the adjusting roller 12. The yarn puller 18 is slidably connected to the regulating roller (12) to increase the curvature of the yarn, so that the contact areas between all the yarns and the transition roller 11, the regulating roller 12 and the active roller 13 are adjusted to a consistent state, so that all the yarns are uniformly adjusted to the uniform tension required by the design for weaving; a yarn guide mechanism 14 is provided at the rear end of the active roller 13 in the direction of the yarn output, and the yarn guide mechanism 14 is usually composed of a number of yarn guide needles arranged closely, and the function of the yarn guide mechanism 14 is to guide all the yarns to maintain a certain gap and enter the warp knitting machine in a uniform direction to prevent the yarns from being entangled and knotted with each other during the movement and causing the yarn to break.

[0037] At the same time, a heating device 16 is also provided in the adjusting roller 12. The heating device 16 starts to heat the adjusting roller 12 when the inkjet system 2 is working according to the instruction of the warp knitting machine control terminal 5. The heating function is to reshape the yarn after spraying.

[0038] Those skilled in the art should be aware that, as a matter of common mechanical knowledge, the tension compensator 1 described in this application has brackets for fixing the transition roller 11, the adjusting roller 12, and the active roller 13 at both ends, and the drive adjustment mechanism 15, the drive mechanism 17, and the yarn guide mechanism 14 are also connected to the brackets. In addition, the tension compensator 1 is fixed to the warp knitting machine frame via the brackets. The "curved arrangement" referred to in this application refers to the layout of the active roller 13, the adjusting roller 12, and the transition roller 11 according to a specific non-linear, smooth, and continuous geometric trajectory. Specifically, from a spatial geometric perspective, the curvilinear arrangement means that the central axes of the three rollers are not in the same straight line, but are distributed sequentially along a path with varying curvature. For example, it can be an arc-shaped curve, with the active roller 13 and the transition roller 11 distributed in a straight line up and down or left and right, and the adjusting roller 12 is located outside the active roller 13 and the transition roller 11, and forms a circular curve path distribution with the two, so that the connecting line between the three rollers constitutes a circular arc, so that the material can change the direction of movement along the circular arc path when passing through the three rollers to achieve the effect of tension compensation, and use it in the equipment in this application. Of course, this application includes but is not limited to other forms of curve arrangement.

[0039] Inkjet system: Inkjet system 2, the inkjet system 2 includes two parts: an inkjet control terminal 21 and an inkjet mechanism 22, wherein the inkjet control terminal 21 is a control circuit, and the inkjet mechanism 22 includes an inkjet component for spraying yarn and a sliding component for driving the inkjet component to move adjustably. The inkjet control terminal 21 is circuit-connected or wirelessly connected to the warp knitting machine control terminal 5. The function of the inkjet control terminal 21 is to receive the printing instructions sent by the warp knitting machine control terminal 5 and convert the printing instructions into inkjet control instructions and send them to the inkjet mechanism 22 to control the inkjet mechanism 22 to perform inkjet work.

[0040] The inkjet mechanism 22 is mounted above the yarn bundle, and a waste ink tank 3 is provided below the yarn bundle. A cavity is formed between the inkjet mechanism 22 and the waste ink tank 3, which is used for the movement of the yarn bundle and the inkjet mechanism 22's inkjet operation. The inkjet mechanism 22 includes an inkjet head 221, a sliding bracket 222, and an ink guide tube 223. The two ends of the ink guide tube 223 are respectively connected to the nozzle 226 in the inkjet head 221 and the dye tank 6 disposed outside the inkjet system 2. The ink guide tube 223 is a single-color tube, that is, one ink guide tube 223 is connected to the dye tank 6 of one color. The number of nozzles 226, ink guide tubes 223, and dye tanks 6 is determined by the color matching method used. For example, if this solution uses the CMYK color matching method by default, this solution is equipped with four nozzles 226, four ink guide tubes 223, and four independent color dye tanks 6. The sliding bracket 222 is erected between the yarn bundle and the inkjet head 221, and includes a sliding tube 224 and a transmission belt 225. The sliding tube 224 is movably sleeved under the inkjet head 221, and there is at least one sliding tube 224. Its function is to provide support and stability for the moving inkjet head 221. Of course, in order to better provide support for the inkjet head 221, a sliding tube 224 can also be sleeved on the front and rear sides of the nozzle 226; the sliding bracket 222 is also provided with a transmission belt 225, which is connected to the inkjet head 221. Its function is to assist the inkjet head 221 to move laterally in the inkjet system 2 according to the inkjet control instruction and quickly reach the pre-inkjet working position. It can be fixedly connected to the inkjet head 221 and drive the inkjet head 221 to move by its own movement, or it can be movably connected to the inkjet head 221 and move by the inkjet head 221's own kinetic energy, and the transmission belt 225 provides support assistance.

[0041] A yarn guide mechanism 14 is provided at the front end of the bottom of the inkjet mechanism 22, that is, the front end of the waste ink tank 3. The yarn guide mechanism 14 can be composed of several densely arranged yarn threading holes or several densely arranged yarn guide needles. Its function is to allow the yarn bundle to enter the cavity between the inkjet mechanism 22 and the waste ink tank 3 in an orderly manner for inkjet operation, so as to prevent the yarn from being entangled and broken during the movement.

[0042] Since the distance between the inkjet system 2 and the tension adjustment system is relatively short, unlike the long distance between the yarn frame and the warp knitting machine where there is a long distance for the dye ink to dry naturally, a dye drying device 23 is also provided at the rear end of the inkjet mechanism 22 to accelerate the drying of the yarn and prevent the yarn from staining the dye ink on the roller rod to contaminate subsequent yarns and fading itself, thereby causing a defective rate.

[0043] The waste ink tank 3 provided at the bottom of the inkjet mechanism 22 collects and discharges the waste ink generated during the inkjet operation into a waste ink bin 7 provided outside the inkjet system 2 through an ink discharge pipe 4 .

[0044] Those skilled in the art should be aware that the "front end" or "rear end" mentioned in this application are defined as the direction from front to back with the work flow direction of the yarn from the creel / disk head to the warp knitting machine, and the equipment settings from front to back are the creel / disk head, inkjet system 2, tension compensator 1, and warp knitting machine; that is, the position of the inkjet system 2 relative to the tension compensator 1 is the front end. Specifically, when looking at the equipment from a front view perspective, the first thing you see is the inkjet system 2 at the front end, and then the tension compensator 1 at the rear end of the inkjet system 2.

[0045] [Operating method of a warp knitting tension adjustment system with inkjet dyeing provided by the present invention] S1: The yarn is pulled out from the creel and / or the warp head respectively, passes through the inkjet mechanism 22 in an orderly manner after passing through the yarn guide mechanism 14 provided at the front end of the bottom of the inkjet mechanism 22, and passes around the transition roller 11, the adjusting roller 12 and the active roller 13 in a curved shape, and then enters the warp knitting machine through the yarn guide mechanism 14 provided at the rear end of the active roller 13 to wait for weaving; S2: Turn on the warp knitting machine control terminal 5, which controls the warp knitting machine to pull the yarn and start knitting. At the same time, the tension compensator 1 set on the top of the warp knitting machine frame starts to adjust the yarn tension according to the instructions sent by the warp knitting machine control terminal 5; S3: The warp knitting machine control terminal 5 sends a print command to the inkjet control terminal 21. The inkjet control terminal 21 converts the command into an inkjet control command and transmits it to the inkjet mechanism 22. The inkjet mechanism 22 sprays dye at the designated position of the yarn bundle according to the inkjet control command. S4: The spray-dyed yarn bundle is driven by the transmission mechanism of the warp knitting machine and passes through the air drying device at the rear end of the inkjet mechanism 22 for preliminary drying. Then, it passes through the tension compensator 1 for secondary tension adjustment before weaving. It is heated and shaped by the heated regulating roller 12 and the active roller 13, and then enters the warp knitting machine for weaving. S5: When the nozzle 226 sprays the yarn bundle, part of the ink dye sprayed outside the yarn bundle is collected into the waste ink bin 7 through the waste ink tank 3 and the ink discharge pipe 4 arranged at the bottom of the waste ink tank 3.

[0046] Preferably, the warp knitting machine control terminal 5 sends corresponding instructions to drive the tension compensator 1 to rotate the active roller 13 at a set rate and drive the transition roller 11 and the adjusting roller 12 to rotate. The adjusting device adjusts the distance between the adjusting roller 12 and the active roller 13 according to the set forward and backward movement to adjust the yarn tension. At the same time, the heating device 16 arranged in the adjusting roller 12 heats the adjusting roller 12.

[0047] Preferably, the inkjet mechanism 22 controls the inkjet head 221 to slide laterally on the sliding bracket 222 according to instructions, and transports the ink from the dye bin 6 through each ink guide tube 223 into the inkjet head 221 through the nozzle 226, thereby spraying the designated position of the yarn bundle.

[0048] Example 1: Reference Figures 1 to 4 A warp knitting tension adjustment system with inkjet dyeing includes a tension compensator 1 arranged on the top of a warp knitting machine frame and an inkjet system 2 arranged at the front end of the tension compensator 1.

[0049] The tension compensator 1 includes a transition roller 11, an adjusting roller 12 and an active roller 13 arranged in a curve from top to bottom. The active roller 13 is driven to rotate by a driving mechanism 17 and drives the transition roller 11 and the adjusting roller 12 to rotate through the yarn that bypasses the transition roller 11, the adjusting roller 12 and the active roller 13 respectively. At the same time, the rotation speed of the active roller 13 is adjustable. The adjusting roller 12 is arranged between the transition roller 11 and the active roller 13. The two ends of the adjusting roller 12 are rotatably connected with an adjusting mechanism. The adjusting roller 12 pushes and pulls the adjusting roller 12 according to the process requirements, so that the adjusting roller 12 can adjust the distance between the transition roller 11 and the active roller 13 back and forth, thereby uniformly adjusting the tension of the yarn. At the same time, a heating device 16 is also provided in the adjusting roller 12 so that the yarn after inkjet dyeing can be uniformly reshaped; a yarn guide mechanism 14 is provided at the rear end of the active roller 13 of the tension compensator 1, and the yarn guide mechanism 14 is composed of a plurality of yarn guide needles.

[0050] The inkjet system 2 includes an inkjet control terminal 21 and an inkjet mechanism 22. The inkjet control terminal 21 is a control circuit, and the inkjet control terminal 21 is connected to the warp knitting machine control terminal 5 by circuit or wireless connection. The inkjet mechanism 22 is mounted on the yarn bundle. The inkjet mechanism 22 includes an inkjet head 221, a sliding bracket 222 and an ink guide tube 223. The sliding bracket 222 is assumed to be above the yarn and the sliding bracket 222 is composed of a sliding tube 224 and a transmission belt 225. The inkjet head 221 is slidably connected to the sliding bracket 222 and is driven by the transmission belt 225 to move laterally. At least four nozzles 226 are provided in the inkjet head 221. The nozzles 226 are divided into The inkjet head 221 is connected to the dye tank 6 of each color through an ink guide tube 223. A waste ink tank 3 is also provided under the yarn bundle passing through the bottom of the inkjet head 221. An inkjet operation space for accommodating the yarn bundle to pass through is formed between the waste ink tank 3 and the inkjet mechanism 22. The waste ink tank 3 is connected to the waste ink tank 7 through an ink discharge tube 4 to discharge the waste ink. A yarn guide mechanism 14 is provided at the front end of the bottom of the inkjet mechanism 22, that is, the front end of the waste ink tank 3. The yarn guide mechanism 14 can be a combination of closely arranged yarn threading holes or a plurality of closely arranged yarn guide needles. A dye drying device 23 is also provided at the short end of the inkjet mechanism 22 to quickly dry the yarn after inkjet printing and dyeing.

[0051] Example 2: For the sake of simplicity, the same parts as those in Example 1 will not be described in detail. The structure different from Example 1 of the present invention will be mainly described. The only difference between Example 2 and Example 1 is the moving direction of the adjustment roller.

[0052] In this embodiment, the adjusting mechanism pushes or pulls the adjusting roller 12 according to the adjustment instruction sent by the warp knitting machine control terminal 5, so that the adjusting roller 12 is adjusted up and down between the transition roller 11 and the active roller 13 to adjust the distance between the adjusting roller 12 and the transition roller 11 and the active roller 13, so that the contact area between all yarns and the transition roller 11, the adjusting roller 12 and the active roller 13 is adjusted to a consistent state, so that all yarns are uniformly adjusted to the uniform tension required by the design for weaving.

[0053] Example 3: For the sake of simplicity in description, the parts that are the same as other embodiments will not be described in detail. The structure that is different from other embodiments of the present invention will be mainly described. The only difference between Example 3 and other embodiments is that the adjustment roller is equipped with a wire puller for lateral adjustment.

[0054] Reference Figure 5 , a plurality of thread pullers 18 are also provided on the adjusting roller 12, and the thread pullers 18 can move laterally relative to the adjusting roller 12, and the thread pullers 18 include a sliding sleeve portion 181 and a fixed buckle 182 which are slidingly connected to the adjusting roller 12, and the fixed buckle 182 is fixedly connected or movably connected to the sliding sleeve portion 181, and the yarn is stuck in and passes through a plurality of fixed buckles 182 to prevent the yarn from being entangled, and the sliding sleeve portion 181 can be adjusted to move laterally on the adjusting roller 12 to increase the curvature of the yarn, wherein, when the fixed buckle 182 is movably connected to the sliding sleeve portion 181, a longitudinal up and down adjustment function is added, thereby enabling the yarn to obtain better tension adjustment performance, and weaving is performed with unified tension according to design requirements. When the thread puller 18 is provided, the heating device 16 directly heats the fixed buckle 182, while improving the control of the tightness of the yarn and ensuring its rapid drying and shaping.

[0055] Example 4: Reference Figure 6 , an operating method of a warp knitting tension adjustment system with inkjet dyeing: S1: The yarn is pulled out from the creel and / or the warp head respectively, passes through the inkjet mechanism 22 in an orderly manner after passing through the yarn guide mechanism 14 provided at the front end of the bottom of the inkjet mechanism 22, and passes around the transition roller 11, the adjusting roller 12 and the active roller 13 in a curved shape, and then enters the warp knitting machine through the yarn guide mechanism 14 provided at the rear end of the active roller 13 to wait for weaving; S2: Turn on the warp knitting machine control terminal 5, which controls the warp knitting machine to pull the yarn and start knitting. At the same time, the tension compensator 1 set on the top of the warp knitting machine frame starts to adjust the yarn tension according to the instructions sent by the warp knitting machine control terminal 5; S3: The warp knitting machine control terminal 5 sends a print command to the inkjet control terminal 21. The inkjet control terminal 21 converts the command into an inkjet control command and transmits it to the inkjet mechanism 22. The inkjet mechanism 22 sprays dye at the designated position of the yarn bundle according to the inkjet control command. S4: The spray-dyed yarn bundle is driven by the transmission mechanism of the warp knitting machine and passes through the air drying device at the rear end of the inkjet mechanism 22 for preliminary drying. Then, it passes through the tension compensator 1 for secondary tension adjustment before weaving. It is heated and shaped by the heated regulating roller 12 and the active roller 13, and then enters the warp knitting machine for weaving. S5: When the nozzle 226 sprays the yarn bundle, part of the ink dye sprayed outside the yarn bundle is collected into the waste ink bin 7 through the waste ink tank 3 and the ink discharge pipe 4 arranged at the bottom of the waste ink tank 3.

[0056] Specifically, the warp knitting machine control terminal 5 sends corresponding instructions to drive the tension compensator 1 to rotate the active roller 13 according to the set rate and drive the transition roller 11 and the adjusting roller 12 to rotate. The adjusting device adjusts the distance between the adjusting roller 12 and the active roller 13 according to the set forward and backward movement to adjust the yarn tension. At the same time, the heating device 16 arranged in the adjusting roller 12 heats the adjusting roller 12.

[0057] Specifically, the inkjet mechanism 22 controls the inkjet head 221 to slide laterally on the sliding bracket 222 according to instructions, and transports the ink from the dye bin 6 through each ink guide tube 223 into the inkjet head 221 through the nozzle 226 to spray dye the designated position of the yarn bundle.

[0058] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A warp knitting tension adjustment system with inkjet dyeing, comprising a warp knitting machine for knitting yarn, characterized in that: The invention comprises a tension compensator (1) and at least one inkjet system (2) arranged on the top of a warp knitting machine frame, wherein the inkjet system (2) is provided with a dye bin (6) and a waste ink bin (7), and a warp knitting machine control terminal (5) for controlling the warp knitting machine to cooperate with the inkjet system (2) to perform yarn spraying operations.

2. The warp knitting tension adjustment system with inkjet dyeing according to claim 1, characterized in that: The tension compensator (1) comprises a transition roller (11), an adjusting roller (12) and an active roller (13) arranged in a curve from top to bottom. The active roller (13) is driven to rotate by a driving mechanism (17) and the rotation speed is adjustable. The tension compensator (1) adjusts the tension of both the yarn that has been sprayed and the yarn that has not been sprayed to maintain the consistency of the yarn tension.

3. The warp knitting tension adjustment system with inkjet dyeing according to claim 2, characterized in that: The inkjet system (2) includes an inkjet control terminal (21) and an inkjet mechanism (22). The inkjet control terminal (21) is a control circuit and is electrically or wirelessly connected to a warp knitting machine control terminal (5). The inkjet mechanism (22) is mounted on the yarn and receives instructions sent from the inkjet control terminal (21) to print and dye the yarn. The inkjet mechanism (22) includes an inkjet component for dyeing the yarn and a sliding component for driving the inkjet component to move in an adjustable manner.

4. The warp knitting tension adjustment system with inkjet dyeing according to claim 3, characterized in that: The inkjet assembly includes an inkjet head (221) and an ink guide tube (223); the sliding assembly includes at least one set of sliding brackets (222); the sliding brackets (222) are mounted on the yarn and are composed of at least one sliding tube (224) and a transmission belt (225); the inkjet head (221) is slidably connected to the sliding bracket (222) and is driven by the transmission belt (225) to move laterally; and at least four nozzles (226) are provided in the inkjet head (221); the nozzles (226) respectively connect the inkjet head (221) to the dye bins (6) of various colors through the ink guide tubes (223).

5. The warp knitting tension adjustment system with inkjet dyeing according to claim 4, characterized in that: A waste ink tank (3) is provided at the bottom of the inkjet mechanism (22), and a dye drying device (23) is provided at the rear end. The waste ink tank (3) is connected to the waste ink bin (7) via an ink discharge pipe (4) and is used to collect excess ink during the inkjet printing operation.

6. The warp knitting tension adjustment system with inkjet dyeing according to claim 5, characterized in that: A yarn guide mechanism (14) is also provided at the bottom front end of the inkjet mechanism (22) and the rear end of the active roller (13) of the tension compensator (1), wherein the yarn is spray-dyed and woven in an orderly manner through the yarn guide mechanism (14).

7. The warp knitting tension adjustment system with inkjet dyeing according to claim 6, characterized in that: The yarn guide mechanism (14) at the bottom front end of the inkjet mechanism (22) is composed of a plurality of yarn threading holes or yarn guide needles; the yarn guide mechanism (14) at the rear end of the active roller (13) of the tension compensator (1) is composed of a plurality of yarn guide needles.

8. The warp knitting tension adjustment system with inkjet dyeing according to claim 2, characterized in that: The regulating roller (12) is also provided with a plurality of wire pullers (18) slidably connected to the regulating roller (12). The wire pullers (18) include a sliding sleeve portion (181) and a fixing buckle (182) for increasing the curvature of the yarn.

9. The warp knitting tension adjustment system with inkjet dyeing according to claim 2, characterized in that: Adjustment mechanisms (15) are also provided at both ends of the adjustment roller (12). The adjustment mechanism (15) is rotatably connected to the adjustment roller (12) to drive the adjustment roller (12) to adjust the yarn tension. A heating device (16) is also provided inside the adjustment roller (12) for secondary drying and shaping of the yarn.

10. The warp knitting tension adjustment system with inkjet dyeing according to claim 9, characterized in that: The regulating mechanism (15) drives the regulating roller (12) to move forward and backward or up and down to adjust the distance between the regulating roller (12), the transition roller (11) and the active roller (13).

11. A method for operating a warp knitting tension adjustment system with inkjet dyeing, the method comprising the following steps: S1: The yarn is pulled out from the yarn rack and / or the yarn head respectively, passes through the inkjet mechanism (22) in an orderly manner after passing through the yarn guide mechanism (14) arranged at the front end of the bottom of the inkjet mechanism (22) and passes around the transition roller (11), the regulating roller (12) and the active roller (13) in a curved shape, and then enters the warp knitting machine through the yarn guide mechanism (14) arranged at the rear end of the active roller (13) to wait for weaving; S2: The warp knitting machine control terminal (5) sends a printing instruction to the inkjet control terminal (21), and the inkjet control terminal (21) converts the instruction into an inkjet control instruction and transmits it to the inkjet mechanism (22), and the inkjet mechanism (22) sprays dye at a designated position of the yarn bundle according to the inkjet control instruction; S3: The yarn bundle after spraying is driven by the transmission mechanism of the warp knitting machine, passes through the tension compensator (1) for secondary tension adjustment before weaving, and then enters the warp knitting machine for weaving; S4: When the nozzle (226) sprays the yarn bundle, part of the ink dye sprayed outside the yarn bundle is collected into the waste ink bin (7) through the waste ink tank (3) and the ink discharge pipe (4) arranged at the bottom of the waste ink tank (3).

12. The method for operating a warp knitting tension adjustment system with inkjet dyeing according to claim 11, characterized in that: The warp knitting machine control terminal (5) sends a corresponding instruction to drive the tension compensator (1) to rotate the active roller (13) according to the set speed and drive the transition roller (11) and the regulating roller (12) to rotate. The regulating device adjusts the distance between the regulating roller (12) and the active roller (13) according to the set forward and backward movement to adjust the yarn tension. At the same time, the heating device (16) arranged in the regulating roller (12) heats the regulating roller (12).

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