Tricot tension adjustment system with inkjet dyeing

Abstract

This utility model discloses a warp knitting tension adjustment system with inkjet dyeing, belonging to the field of textile machinery technology. It includes a tension compensator mounted on the top of the warp knitting machine frame and an inkjet system positioned in front of the tension compensator. The tension compensator comprises a transition roller, an adjusting roller, and a drive roller arranged in a curve from top to bottom. The drive roller is driven to rotate by a drive mechanism, and its rotation speed is adjustable. 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 a warp knitting control terminal. The inkjet mechanism is mounted on the yarn. This utility model provides a highly efficient, environmentally friendly, flexible, and cost-effective warp knitting tension adjustment system, suitable for the growing demand in the modern textile industry for high-quality, personalized products.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and more specifically, to a warp knitting tension adjustment system with inkjet dyeing. Background Technology

[0002] With the continuous development of the textile industry, consumers have increasingly higher requirements for the aesthetics and functionality of fabrics. Traditional fabric dyeing methods, such as immersion dyeing and spray dyeing, can achieve color changes, but these methods are often accompanied by complex processes, high costs, and environmental impacts. In addition, these traditional methods may also affect the hand feel and durability of the fabric.

[0003] While warp knitting offers high production speed and flexibility, it still has limitations in color processing. Traditional warp knitting techniques can mostly only produce products with a single color or simple patterns. To achieve more complex designs or color gradient effects, additional dyeing or printing processes are required after weaving. This not only increases production costs and complexity but can also lead to problems such as uneven dyeing.

[0004] To simplify production processes and reduce environmental pollution, the textile industry has been seeking methods to achieve color changes directly during weaving. For example, inkjet printing disperses pigment into tiny droplets using a spray gun or atomizer, uniformly spraying them onto the material surface to achieve a gradient effect from one color to another. However, this method is not only labor-intensive and resource-intensive but can also lead to environmental pollution and increased costs. On the other hand, while jacquard weaving can create gradient effects on fabrics through combinations of different yarns and stitch patterns, its drawing efficiency is low, requiring extensive manual drawing, which prolongs the production cycle, and the jacquard effect appears unnatural upon close inspection.

[0005] In recent years, with the development of digital inkjet printing technology, its application in the textile industry has become increasingly widespread. The advantages of digital inkjet printing technology lie in its ability to achieve highly customized pattern designs and the quick change of different patterns, greatly improving production flexibility. However, current inkjet printing technology is mainly applied to finished fabrics, with relatively little research on direct color processing during online production.

[0006] Furthermore, the post-dyeing treatment of yarn is also a crucial step. In traditional dyeing processes, the yarn's tension and crimp can change due to variations in moisture levels after dyeing, necessitating re-warping to restore tension consistency and morphological stability. This process not only increases production steps but can also potentially affect the quality of the final product.

[0007] Given the above situation, how to directly achieve yarn color change during warp knitting and perform warping treatment on the yarn after dyeing to ensure yarn tension consistency and shape stability has become an important technical problem that the textile industry urgently needs to solve. Utility Model Content

[0008] To address the technical problem of color processing during online production in the warp knitting field mentioned above, this utility model provides a warp knitting tension adjustment system with inkjet dyeing.

[0009] This utility model discloses a warp knitting tension adjustment system with inkjet dyeing.

[0010] A warp knitting tension adjustment system with inkjet dyeing includes a warp knitting machine for knitting yarn. The system comprises a tension compensator mounted on the top of the warp knitting machine frame and at least one inkjet system mounted in front of the tension compensator. Each inkjet system is equipped with a dye chamber and a waste ink chamber, as well as a warp knitting machine control terminal for controlling the warp knitting machine and the inkjet system to perform yarn dyeing operations. After dyeing, the yarn is fed to the tension compensator for secondary tension adjustment to maintain consistent yarn tension before and after dyeing. Preferably, there are six inkjet systems.

[0011] Preferably, the tension compensator includes a transition roller, an adjusting roller, and a drive roller arranged in a curve from top to bottom. The drive roller is driven to rotate by a drive mechanism and the rotation speed is adjustable. The tension compensator adjusts the tension of both dyed and undyed yarns to maintain consistent yarn tension.

[0012] 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 in an adjustable manner.

[0013] Preferably, the inkjet assembly includes an inkjet head and an ink guide tube, and the sliding assembly includes at least one set of sliding supports. The sliding supports are mounted on the yarn and consist of at least one sliding tube and a transmission belt. The inkjet head is slidably connected to the sliding supports and is driven to move laterally by the transmission belt. The inkjet head is provided with at least four nozzles, and the nozzles are respectively connected to the inkjet head and the dye tanks of each color through the ink guide tubes.

[0014] Preferably, the bottom of the inkjet unit is equipped with a waste ink tank and the rear end is equipped with a dye drying device. The waste ink tank is connected to the waste ink container through an ink discharge pipe to collect excess ink during the inkjet printing operation.

[0015] Preferably, a yarn guiding mechanism is also 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 guided through the yarn guiding mechanism to carry out inkjet dyeing and yarn weaving operations in an orderly manner.

[0016] Preferably, the yarn guiding mechanism at the bottom front end of the inkjet mechanism consists of several yarn threading holes or yarn guiding needles; the yarn guiding mechanism at the rear end of the tension compensator's drive roller consists of several yarn guiding needles.

[0017] Preferably, the adjusting roller is also provided with several yarn pullers that are slidably connected to the adjusting roller. The yarn pullers include a sliding sleeve and a fixing buckle to increase the curvature of the yarn.

[0018] Preferably, the two ends of the adjusting roller are also provided with adjusting mechanisms, which are rotatably connected to the adjusting roller to drive the adjusting roller to adjust the yarn tension. The adjusting roller is also provided with a heating device for secondary drying and shaping of the yarn.

[0019] This utility model also discloses an operation method for a warp knitting tension adjustment system with inkjet dyeing.

[0020] Operating method of a warp knitting tension adjustment system with inkjet dyeing:

[0021] S1: The yarn is drawn out from the yarn frame and / or the yarn tray, and after passing through the yarn guide mechanism set at the bottom front end of the inkjet mechanism, it passes through the inkjet mechanism in an orderly manner and curves around the transition roller, the adjusting roller and the drive roller. Then, it enters the warp knitting machine through the yarn guide mechanism set at the rear end of the drive roller to wait for weaving.

[0022] S2: Turn on the warp knitting machine control terminal. The warp knitting machine control terminal controls the warp knitting machine to pull the yarn to start the knitting work. At the same time, the tension compensator set on the top of the warp knitting machine frame starts to adjust the tension of the yarn according to the instructions sent by the warp knitting machine control terminal.

[0023] S3: The warp knitting machine control terminal sends a printing command to the inkjet control terminal. The inkjet control terminal converts the command into an inkjet control command and transmits it to the inkjet mechanism. The inkjet mechanism performs inkjet printing at the specified position of the yarn bundle according to the inkjet control command.

[0024] S4: The yarn bundles that have been sprayed and dyed are driven by the transmission mechanism of the warp knitting machine and then undergo preliminary drying in the air drying equipment at the rear end of the inkjet mechanism. After that, they undergo secondary tension adjustment before weaving by the tension compensator, and then undergo heating and shaping by the heated regulating roller and the drive roller before entering the warp knitting machine for weaving.

[0025] S5: When the nozzle is used to spray dye the yarn bundle, some of the ink dye sprayed outside the yarn bundle is collected into the waste ink tank through the waste ink tank and the ink discharge pipe set at the bottom of the waste ink tank.

[0026] Preferably, the warp knitting machine control terminal sends corresponding instructions to drive the tension compensator to rotate the drive roller at a set rate, which in turn drives the transition roller and the adjusting roller to rotate. The adjusting device moves back and forth according to the set forward and backward movement to adjust the distance between the adjusting roller and the drive roller, thereby adjusting the yarn tension. At the same time, the heating device installed in the adjusting roller heats the adjusting roller.

[0027] Preferably, the inkjet mechanism controls the inkjet head to slide laterally on the sliding bracket according to the instruction, and delivers the ink from the dye tank into the inkjet head through each ink guide tube through the nozzle, thereby dyeing the designated position of the yarn bundle.

[0028] The beneficial effects of this utility model are:

[0029] 1. Maintaining Tension Uniformity: In existing technologies, to ensure uniform yarn tension during the weaving process, a tensioner is used to adjust the yarn tension after it is drawn from the yarn frame / head. However, in this invention, the yarn is inkjet-dyed before being introduced into the warp knitting machine. During the inkjet dyeing process, friction between the yarn and the equipment in the dyeing mechanism, as well as subtle differences in the degree of ink penetration, may cause variations in yarn tension, resulting in tension differences between yarns. Therefore, this invention adds a tension compensator at the rear end of the inkjet mechanism for secondary tension uniformity adjustment. The tension compensator adopts a top-down curved arrangement, and the adjustable rotation speed of the drive roller adapts to the tension requirements of different yarns. This design not only improves the consistency of yarn tension but also reduces quality problems caused by yarn tension fluctuations.

[0030] 2. High-efficiency inkjet dyeing: Through an integrated inkjet system, this invention enables precise color printing on yarn before it enters the warp knitting machine. The lateral movement of the inkjet head on the sliding support, along with the design of multiple nozzles, ensures uniform color distribution and the achievement of high-precision patterns.

[0031] 3. Reduce waste ink pollution: This utility model is equipped with a waste ink tank and a waste ink container, which effectively collects the excess ink generated during the dyeing process, avoids environmental pollution, and also reduces the waste of raw materials.

[0032] 4. Enhanced Yarn Stability: This invention incorporates a dye drying device at the rear end of the inkjet mechanism, enabling the freshly dyed yarn to dry rapidly and maintain its stability. Furthermore, the application of a heating device further improves the yarn's setting effect, ensuring its straightness during subsequent weaving.

[0033] 5. High degree of automation: The entire system is uniformly controlled by the warp knitting machine control terminal, with the inkjet control terminal working closely with it to automate the inkjet dyeing process. This design not only improves production efficiency but also reduces errors caused by manual operation.

[0034] 6. Improved production flexibility: By changing the inkjet control commands, this invention can easily achieve design variations of different colors and patterns, greatly enhancing the flexibility of the production process and meeting the market's demand for diversified products.

[0035] 7. Reduced production costs: Compared with traditional dyeing and warping processes, this invention simplifies the process flow and reduces the breakage rate caused by uneven yarn tension, thereby reducing production costs.

[0036] In summary, this utility model provides a highly 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. Attached Figure Description

[0037] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0038] Figure 1 This is a schematic diagram of the structure of a warp knitting tension adjustment system with inkjet dyeing according to the present invention;

[0039] Figure 2 This is a schematic diagram of the tension compensator structure of a warp knitting tension adjustment system with inkjet dyeing according to this utility model. Figure 1 ;

[0040] Figure 3 This is a schematic diagram of the inkjet system structure of a warp knitting tension adjustment system with inkjet dyeing according to the present invention;

[0041] Figure 4 This is a cross-sectional schematic diagram of the inkjet system of a warp knitting tension adjustment system with inkjet dyeing according to the present invention;

[0042] Figure 5 This is a schematic diagram of the tension compensator structure of a warp knitting tension adjustment system with inkjet dyeing according to this utility model. Figure 2 ;

[0043] Figure 6 This is a flowchart illustrating the operation method of a warp knitting finishing and adjusting system with inkjet dyeing according to this utility model.

[0044] Key reference numerals in the attached drawings: 1. Tension compensator; 11. Transition roller; 12. Adjusting roller; 13. Drive roller; 14. Yarn guiding mechanism; 15. Adjusting mechanism; 16. Heating device; 17. Drive mechanism; 18. Yarn 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. Drive belt; 226. Nozzle; 23. Dye drying device; 3. Waste ink tank; 4. Ink discharge pipe; 5. Warp knitting machine control terminal; 6. Dye tank; 7. Waste ink tank. Detailed Implementation

[0045] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings, thereby enabling a full understanding of how this utility model uses technical means to solve technical problems and achieve technical effects, and allowing for its implementation. It should be noted that, as long as there is no conflict, the various embodiments and features in each embodiment of this utility model can be combined with each other, and the resulting technical solutions are all within the protection scope of this utility model.

[0046] Furthermore, numerous specific details are set forth in the following description for illustrative purposes to provide a thorough understanding of the embodiments of this invention. However, it will be apparent to those skilled in the art that this invention may be practiced without the specific details or particular methods described herein.

[0047] [A warp knitting tension adjustment system with inkjet dyeing according to this utility model]

[0048] A warp knitting tension adjustment system with inkjet dyeing includes a warp knitting machine for knitting yarn. The system comprises a tension compensator mounted on the top of the warp knitting machine frame and at least one inkjet system for dyeing the yarn after tension adjustment via the tension compensator. The inkjet system is equipped with a dye chamber and a waste ink chamber, as well as a warp knitting machine control terminal for controlling the warp knitting machine and the inkjet system to perform yarn dyeing operations. After dyeing, the yarn is again fed to the tension compensator for secondary tension adjustment to maintain consistent yarn tension before and after dyeing.

[0049] The system can be mainly divided into three parts: the control system, the tension adjustment system, and the inkjet system 2, which are as follows:

[0050] Control system:

[0051] The control system, namely the warp knitting machine control terminal 5, is connected by circuit or wireless connection to the warp knitting machine, the tension adjustment system, and the inkjet system 2. Its function is to control the warp knitting machine to knit a warp-knitted fabric with a pre-designed pattern; to send instructions to the tension adjustment system according to the process requirements to adjust the adjustment roller 12 back and forth to adjust the distance between the transition roller 11, the adjustment roller 12, and the drive roller 13 to unify the yarn tension, so that the yarn tension is uniform and meets the knitting process requirements during knitting; and to send instructions to the inkjet system 2 according to the design requirements, so that the inkjet system 2 can perform inkjet dyeing on the yarn bundle passing through the inkjet system 2 according to the design, so that the yarn bundle is dyed with the specified pattern color.

[0052] Those skilled in the art should know that the yarn bundle mentioned herein refers to a certain number of yarns drawn from the yarn frame or the yarn head and arranged densely in the horizontal direction. The specific number of yarns in a single yarn bundle may vary depending on the number of inkjet systems 2 installed on the warp knitting machine and the process requirements.

[0053] Tension adjustment system:

[0054] 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 consists of a transition roller 11, an adjusting roller 12, and a drive roller 13 arranged in a curve from top to bottom. When the warp knitting machine is threaded, the yarn passes through the transition roller 11, the adjusting roller 12, and the drive roller 13 in one go before entering the warp knitting machine. During weaving, the yarn is pulled out from the yarn frame and / or the yarn tray. The drive roller 13 adjusts its rotation speed according to the yarn feeding rate sent by the warp knitting machine control terminal 5 through the drive mechanism 17, so that all the yarn can be fed into the warp knitting machine at a uniform speed for weaving. When the yarn is pulled and fed into the warp knitting machine, the tension of the yarn may be deviated 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 soaked in ink will also change. Yarns with different tensions are prone to breakage during dense warp knitting. Therefore, the yarn after spray dyeing needs to undergo a second tension adjustment to ensure consistent tension and production quality. Adjustment mechanisms 15 at both ends of the adjustment roller 12 push or pull the adjustment roller 12 according to adjustment commands sent by the warp knitting machine control terminal 5, adjusting the distance between the adjustment roller 12 and the transition roller 11 and drive roller 13. Simultaneously, several thread pullers 18 are also installed on the adjustment roller 12, which can move relative to the adjustment roller 12 horizontally. As the yarn moves, the puller 18 slides in connection with the adjusting roller (12) to increase the curvature of the yarn, so that the contact area between all the yarns and the transition roller 11, adjusting roller 12 and drive roller 13 is adjusted to a consistent state, so that all the yarns are uniformly adjusted to the uniform tension required by the design for weaving; the rear end of the drive roller 13 in the yarn exit direction is provided with a yarn guiding mechanism 14, which is usually composed of several yarn guiding needles arranged closely. The function of the yarn guiding mechanism 14 is to guide all the yarns to enter the warp knitting machine in a uniform direction with a certain gap, so as to prevent the yarns from getting tangled and knotted during the process and causing yarn breakage.

[0055] Meanwhile, 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 instructions of the warp knitting machine control terminal 5. The heating function is to reshape the yarn after inkjet dyeing.

[0056] Those skilled in the art should understand that, as is common mechanical knowledge, the tension compensator 1 described in this application has brackets at both ends of its transition roller 11, adjusting roller 12, and drive roller 13 for fixing, and the drive adjustment mechanism 15, drive mechanism 17, and yarn guide mechanism 14 are also connected to the brackets. The tension compensator 1 is fixed to the warp knitting machine frame via these brackets. In this application, the term "curved arrangement" refers to the arrangement of the drive roller 13, adjusting roller 12, and transition roller 11 along a specific non-linear, smooth, and continuous geometric trajectory. Specifically, from a spatial geometry perspective, a curved arrangement means that the central axes of the three rollers are not on 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 arranged in a straight line, either vertically or horizontally. The adjusting roller 12 is located outside the active roller 13 and the transition roller 11, forming a circular curve path distribution with the two. This allows the line connecting the three rollers to form an arc, enabling the material to change its direction of movement along the arc path when passing through these three rollers, thereby achieving the effect of tension compensation. This can be applied to the device in this application. Of course, this application includes, but is not limited to, other forms of curve arrangement.

[0057] Inkjet system:

[0058] The inkjet system 2 comprises two parts: an inkjet control terminal 21 and an inkjet mechanism 22. The inkjet control terminal 21 is a control circuit, and 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. The inkjet control terminal 21 is electrically 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, which are then sent to the inkjet mechanism 22 to control the inkjet mechanism 22 to perform inkjet operation.

[0059] The inkjet mechanism 22 is mounted on top of the yarn bundle, and a waste ink tank 3 is located 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 operation of the inkjet mechanism 22. The inkjet mechanism 22 includes an inkjet head 221, a sliding support 222, and an ink guide tube 223. The two ends of the ink guide tube 223 are respectively connected to the nozzles 226 in the inkjet head 221 and the dye tanks 6 located outside the inkjet system 2. The ink guide tube 223 is a single-color single tube, that is, one ink guide tube 223 is connected to one color dye tank 6. The number of nozzles 226, ink guide tubes 223, and dye tanks 6 is determined according to the color matching method adopted. For example, if this solution uses the CMYK color matching scheme by default, then 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 installed between the yarn bundle and the inkjet head 221. It includes a sliding tube 224 and a drive belt 225. The sliding tube 224 is movably sleeved under the inkjet head 221, and there is at least one sliding tube. Its function is to provide support and stability for the moving inkjet head 221. Of course, in order to provide better 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 drive belt 225, which is connected to the inkjet head 221. Its function is to assist the inkjet head 221 in making lateral movements in the inkjet system 2 according to the inkjet control command 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 kinetic energy of the inkjet head 221. The drive belt 225 provides support and assistance.

[0060] The bottom front end of the inkjet mechanism 22, which is also the front end of the waste ink tank 3, is provided with a yarn guiding mechanism 14. The yarn guiding mechanism 14 can be composed of several densely arranged horizontal yarn holes or several densely arranged horizontal yarn guiding 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, and to prevent the yarn from getting tangled and broken during the process.

[0061] Because 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 the dye ink can dry naturally, a dye drying device 23 is also set at the rear end of the inkjet mechanism 22 to accelerate the drying of the yarn and prevent the yarn from contaminating the subsequent yarn with dye ink on the roller and causing the yarn to fade, resulting in a high defect rate.

[0062] The waste ink tank 3 located at the bottom of the inkjet unit 22 collects and discharges the waste ink generated during the inkjet operation into the waste ink container 7 located outside the inkjet system 2 through the ink discharge pipe 4.

[0063] Those skilled in the art should understand that the terms "front end" or "rear end" used in this application are defined as follows: with the working flow direction of the yarn from the yarn frame / head to the warp knitting machine as the front-to-back direction, the equipment arrangement from front to back is as follows: yarn frame / head, inkjet system 2, tension compensator 1, and warp knitting machine; that is, the position of inkjet system 2 relative to tension compensator 1 is the front end. Specifically, when looking at the equipment from a front view perspective, the first thing you see is inkjet system 2 at the front end, and then tension compensator 1 is located at the rear end of inkjet system 2.

[0064] [An operating method for a warp knitting tension adjustment system with inkjet dyeing according to this utility model]

[0065] S1: The yarn is drawn out from the yarn frame and / or the yarn tray, passes through the yarn guide mechanism 14 located at the bottom front end of the inkjet mechanism 22 in an orderly manner, and curves around the transition roller 11, the adjusting roller 12 and the drive roller 13. Then, it enters the warp knitting machine through the yarn guide mechanism 14 located at the rear end of the drive roller 13 to wait for weaving.

[0066] S2: Turn on the warp knitting machine control terminal 5. The warp knitting machine control terminal 5 controls the warp knitting machine to pull the yarn to start the knitting work. At the same time, the tension compensator 1 set on the top of the warp knitting machine frame starts to adjust the tension of the yarn according to the instructions sent by the warp knitting machine control terminal 5.

[0067] S3: The warp knitting machine control terminal 5 sends a printing 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 performs inkjet printing at the specified position of the yarn bundle according to the inkjet control command.

[0068] S4: The yarn bundles that have been sprayed and dyed are driven by the transmission mechanism of the warp knitting machine and are initially dried by the air drying equipment at the rear end of the inkjet mechanism 22. Then, they are adjusted for tension before weaving by the tension compensator 1. They are heated and shaped by the heated regulating roller 12 and the drive roller 13, and then enter the warp knitting machine for weaving.

[0069] S5: When the yarn bundle is dyed by the nozzle 226, some of the ink dye sprayed outside the yarn bundle is collected into the waste ink tank 7 through the waste ink tank 3 and the ink discharge pipe 4 set at the bottom of the waste ink tank 3.

[0070] Preferably, the warp knitting machine control terminal 5 sends a corresponding command to drive the tension compensator 1 to rotate the drive roller 13 at a set rate and drive the transition roller 11 and the adjusting roller 12 to rotate. The adjusting device moves back and forth according to the set back and forth movement to adjust the distance between the adjusting roller 12 and the drive roller 13, thereby adjusting the yarn tension. At the same time, the heating device 16 installed in the adjusting roller 12 heats the adjusting roller 12.

[0071] Preferably, the inkjet mechanism 22 controls the inkjet head 221 to slide laterally on the sliding bracket 222 according to the instruction, and delivers the ink from the dye tank 6 into the inkjet head 221 through each ink guide tube 223 and through the nozzle 226 to spray dye the designated position of the yarn bundle.

[0072] Example 1:

[0073] Reference Figures 1-4 A warp knitting tension adjustment system with inkjet dyeing, comprising a tension compensator 1 disposed on the top of the warp knitting machine frame and an inkjet system 2 disposed at the front end of the tension compensator 1.

[0074] The tension compensator 1 includes a transition roller 11, an adjusting roller 12, and a drive roller 13 arranged in a curve from top to bottom. The drive roller 13 is driven to rotate by a drive mechanism 17 and drives the transition roller 11 and the adjusting roller 12 to rotate through the yarn that passes over the transition roller 11, the adjusting roller 12, and the drive roller 13 respectively. The rotation speed of the drive roller 13 is adjustable. The adjusting roller 12 is located between the transition roller 11 and the drive roller 13. The two ends of the adjusting roller 12 are rotatably connected to an adjusting mechanism. The adjusting roller 12 is pushed and pulled according to process requirements, so that the adjusting roller 12 can adjust the distance between itself and the transition roller 11 and the drive roller 13, thereby uniformly adjusting the tension of the yarn. At the same time, a heating device 16 is also provided inside the adjusting roller 12 so that the yarn after inkjet dyeing can be uniformly re-shaped. A yarn guiding mechanism 14 is provided at the rear end of the drive roller 13 of the tension compensator 1. The yarn guiding mechanism 14 is composed of several yarn guiding needles.

[0075] 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 it is electrically or wirelessly connected to the warp knitting machine control terminal 5. The inkjet mechanism 22 is mounted on the yarn bundle and includes an inkjet head 221, a sliding bracket 222, and an ink guide tube 223. The sliding bracket 222 is mounted on the yarn and consists of a sliding tube 224 and a drive belt 225. The inkjet head 221 is slidably sleeved on the sliding bracket 222 and is driven laterally by the drive belt 225. The inkjet head 221 is provided with at least four nozzles 226. The inkjet head 221 is connected to the dye tanks 6 of each color via the ink guide tube 223. A waste ink tank 3 is also provided below the yarn bundle passing under the inkjet head 221. The waste ink tank 3 and the inkjet mechanism 22 form an inkjet working space that can accommodate the yarn bundle. The waste ink tank 3 is connected to the waste ink tank 7 via the ink discharge tube 4 to discharge waste ink. A yarn guide mechanism 14 is provided at the front end of the bottom of the inkjet mechanism 22, that is, at the front end of the waste ink tank 3. The yarn guide mechanism 14 can be a combination of closely arranged horizontal yarn holes or a combination of several closely arranged yarn guide needles. The inkjet mechanism 22 is also equipped with a dye drying device 23 to quickly dry the yarn after inkjet printing.

[0076] Example 2:

[0077] For the sake of brevity, the parts that are the same as in Embodiment 1 will not be described again. The main focus is on the structure that is different from Embodiment 1 of this utility model. The only difference between Embodiment 2 and Embodiment 1 is the direction of movement of the adjusting roller.

[0078] In this embodiment, the adjustment mechanism pushes or pulls the adjustment roller 12 according to the adjustment command sent by the warp knitting machine control terminal 5, so that the adjustment roller 12 adjusts the vertical distance between the transition roller 11 and the drive roller 13, thereby adjusting the distance between the adjustment roller 12 and the transition roller 11 and the drive roller 13, so that the contact area between all the yarns and the transition roller 11, the adjustment roller 12 and the drive roller 13 is adjusted to a consistent state, and all the yarns are uniformly adjusted to the uniform tension required by the design for knitting.

[0079] Example 3:

[0080] For the sake of brevity, the parts that are the same as those in other embodiments will not be described again. The main focus is on the structure that is different from other embodiments of this utility model. The only difference between Embodiment 3 and other embodiments is that the adjusting roller is equipped with a puller for lateral adjustment.

[0081] Reference Figure 5 The adjusting roller 12 is also equipped with several pullers 18. The pullers 18 can move laterally relative to the adjusting roller 12. The pullers 18 include a sliding sleeve 181 that is slidably connected to the adjusting roller 12 and a fixing buckle 182. The fixing buckle 182 is fixedly connected to the sliding sleeve 181 or movably connected. The yarn is inserted into and passes through several fixing buckles 182 to prevent the yarn from tangling. The sliding sleeve 181 can be adjusted to move laterally on the adjusting roller 12 to increase the curvature of the yarn. When the fixing buckle 182 is movably connected to the sliding sleeve 181, a longitudinal up-and-down adjustment function is added, thereby enabling the yarn to obtain better tension adjustment performance and weaving with uniform tension according to design requirements. With the pullers 18 installed, the heating device 16 directly heats the fixing buckle 182, which improves the control of yarn tension while ensuring its rapid drying and shaping.

[0082] Example 4:

[0083] Reference Figure 6 An operating method for a warp knitting tension adjustment system with inkjet dyeing:

[0084] S1: The yarn is drawn out from the yarn frame and / or the yarn tray, passes through the yarn guide mechanism 14 located at the bottom front end of the inkjet mechanism 22 in an orderly manner, and curves around the transition roller 11, the adjusting roller 12 and the drive roller 13. Then, it enters the warp knitting machine through the yarn guide mechanism 14 located at the rear end of the drive roller 13 to wait for weaving.

[0085] S2: Turn on the warp knitting machine control terminal 5. The warp knitting machine control terminal 5 controls the warp knitting machine to pull the yarn to start the knitting work. At the same time, the tension compensator 1 set on the top of the warp knitting machine frame starts to adjust the tension of the yarn according to the instructions sent by the warp knitting machine control terminal 5.

[0086] S3: The warp knitting machine control terminal 5 sends a printing 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 performs inkjet printing at the specified position of the yarn bundle according to the inkjet control command.

[0087] S4: The yarn bundles that have been sprayed and dyed are driven by the transmission mechanism of the warp knitting machine and are initially dried by the air drying equipment at the rear end of the inkjet mechanism 22. Then, they are adjusted for tension before weaving by the tension compensator 1. They are heated and shaped by the heated regulating roller 12 and the drive roller 13, and then enter the warp knitting machine for weaving.

[0088] S5: When the yarn bundle is dyed by the nozzle 226, some of the ink dye sprayed outside the yarn bundle is collected into the waste ink tank 7 through the waste ink tank 3 and the ink discharge pipe 4 set at the bottom of the waste ink tank 3.

[0089] Specifically, the warp knitting machine control terminal 5 sends corresponding instructions to drive the tension compensator 1 to rotate the drive roller 13 at the set speed, and drive the transition roller 11 and the adjusting roller 12 to rotate. The adjusting device moves back and forth according to the set back and forth movement to adjust the distance between the adjusting roller 12 and the drive roller 13, and adjust the yarn tension. At the same time, the heating device 16 set in the adjusting roller 12 heats the adjusting roller 12.

[0090] Specifically, the inkjet mechanism 22 controls the inkjet head 221 to slide laterally on the sliding bracket 222 according to the instructions, and delivers the ink from the dye tank 6 into the inkjet head 221 through each ink guide tube 223 and through the nozzle 226 to spray dye the designated position of the yarn bundle.

[0091] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A warp knitting tension adjustment system with inkjet dyeing, comprising a warp knitting machine for knitting yarns, characterized in that: It includes a tension compensator (1) installed on the top of the warp knitting machine frame and at least one inkjet system (2). The inkjet system (2) is equipped with a dye tank (6) and a waste ink tank (7), as well as a warp knitting machine control terminal (5) for controlling the warp knitting machine and the inkjet system (2) to perform yarn dyeing operations.

2. The belt with inkjet dyeing warp tension adjustment system according to claim 1, characterized in that: The tension compensator (1) includes a transition roller (11), an adjustment 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 drive mechanism (17) and the rotation speed is adjustable. The tension compensator (1) adjusts the tension of both dyed and undyed yarns to maintain the consistency of yarn tension.

3. The belt with inkjet dyeing warp tension adjustment system 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 the warp knitting machine control terminal (5). The inkjet mechanism (22) is mounted on the yarn and receives instructions 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 belt with inkjet dyeing warp tension adjustment system 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 consist of at least one sliding tube (224) and a drive belt (225). The inkjet head (221) is slidably connected to the sliding bracket (222) and is driven to move laterally by the drive belt (225). The inkjet head (221) is provided with at least four nozzles (226). The nozzles (226) are respectively connected to the inkjet head (221) and the dye tanks (6) of each color through the ink guide tube (223).

5. The belt with inkjet dyeing warp tension adjustment system according to claim 4, characterized in that: The bottom of the inkjet unit (22) is provided with a waste ink tank (3) and the rear end is provided with a dye drying device (23). The waste ink tank (3) is connected to the waste ink container (7) through the ink discharge pipe (4) to collect excess ink in the inkjet dyeing operation.

6. The belt with inkjet dyeing warp tension adjustment system according to claim 5, characterized in that: The bottom front end of the inkjet mechanism (22) and the rear end of the active roller (13) of the tension compensator (1) are also provided with a yarn guiding mechanism (14), in which the yarn is carried out in an orderly manner for inkjet dyeing and yarn weaving operations via the yarn guiding mechanism (14).

7. The belt with inkjet dyeing warp tension adjustment system according to claim 6, characterized in that: The yarn guiding mechanism (14) at the bottom front end of the inkjet mechanism (22) consists of several yarn holes or yarn guiding needles; the yarn guiding mechanism (14) at the rear end of the drive roller (13) of the tension compensator (1) consists of several yarn guiding needles.

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

9. The belt with inkjet dyeing warp tension adjustment system according to claim 2, characterized in that: Adjustment mechanisms (15) are also provided at both ends of the adjustment roller (12). The adjustment mechanisms (15) are 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 belt with inkjet dyeing warp tension adjustment system according to claim 9, characterized in that: The adjustment mechanism (15) drives the adjustment roller (12) to move back and forth or up and down to adjust the distance between the adjustment roller (12) and the transition roller (11) and the drive roller (13).

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