Knitting equipment with ink-jet printing function

Abstract

Knitting equipment with an ink-jet printing function comprises a creel device, an ink-jet printing device, an automatic control system and a knitting machine, the ink-jet printing device is installed on one side of the creel device, the knitting machine is installed on the other side, away from the creel device, of the ink-jet printing device, and yarn is conveyed between the creel device and the ink-jet printing device through a yarn guide device. The yarn guide device is used for positioning and guiding yarns, the knitting equipment is provided with an automatic control system, the automatic control system comprises a yarn feeding speed monitoring module and a nozzle flow speed control module, and the automatic control system is in signal connection with all the modules and all the equipment to control the modules and all the equipment. The utility model provides a yarn ink-jet printing solution which is efficient, environment-friendly, flexible and high in cost effectiveness.

Description

Technical Field

[0001] This utility model is a knitting device with inkjet printing function, belonging to the field of knitting technology. Background Technology

[0002] As the textile industry continues to demand higher production efficiency and environmental protection standards, the limitations of traditional dyeing and weaving processes are becoming increasingly apparent. In existing technologies, dyeing and weaving are often performed in separate steps, resulting in cumbersome processes and wasted resources.

[0003] How to avoid uneven yarn color in traditional inkjet printing, how to maintain stable yarn tension during the process of combining inkjet printing with weaving machines, and how to reduce production costs caused by yarn breakage during weaving have become problems that everyone needs to solve.

[0004] To overcome the aforementioned problems, existing technologies cannot simultaneously address online dyeing, yarn processing, precise control, and technology integration, resulting in high production costs, low efficiency, and unstable quality. Therefore, this invention proposes a weaving device and its weaving process with inkjet printing capability. Through modular inkjet printing, synchronous tension adjustment, and independent dyeing of individual yarns, it achieves integrated dyeing-weaving production. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a weaving device with inkjet printing function, so as to solve the problem that the existing inkjet printing technology is mostly used on finished fabrics and the yarn after inkjet printing needs additional processing to restore its tension consistency and shape stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a weaving device with inkjet printing function, comprising: a yarn frame device, an inkjet printing device, an automated control system, and a weaving machine. The inkjet printing device is installed on one side of the yarn frame device, and the weaving machine is installed on the other side of the inkjet printing device away from the yarn frame device. A yarn guiding device supplies yarn between the yarn frame device and the inkjet printing device, positioning and guiding the yarn. The weaving device is equipped with an automated control system, which includes a yarn feeding speed monitoring module and a printhead flow rate control module.

[0007] Furthermore, the yarn guiding device includes a yarn guiding support plate and a yarn collecting plate.

[0008] Furthermore, the automated control system includes a yarn flow rate monitoring module and a nozzle flow rate control module.

[0009] Furthermore, the inkjet printing device is internally equipped with an inkjet module, a drying module, a cleaning module, a lubrication module, and an anti-static module, and the modules are connected by a yarn guide roller to achieve continuous processing.

[0010] Furthermore, the drying module uses a hot air circulation system to quickly set the yarn, the cleaning module uses a flexible brush to remove impurities from the yarn surface, the lubrication module uses lubricant to reduce friction of the yarn during weaving, and the antistatic module uses metal plates to eliminate static electricity on the yarn.

[0011] Furthermore, the inkjet module is provided with at least one inkjet assembly, the inkjet assembly is provided with an inkjet head, an ink guide tube is connected above the inkjet head, a yarn channel is provided below the inkjet head, a waste ink tank is provided below the yarn channel, an ink storage tank is provided below the waste ink tank, and one side of the ink storage tank is connected to an ink discharge pipe.

[0012] Furthermore, the ink discharge pipe is equipped with a corresponding check valve component. The inkjet module is equipped with at least one inkjet assembly, the inkjet assembly is equipped with an inkjet head, an ink guide pipe is connected above the inkjet head, a yarn channel is provided below the inkjet head, a waste ink tank is provided below the yarn channel, an ink storage tank is provided below the waste ink tank, and one side of the ink storage tank is connected to the ink discharge pipe.

[0013] Furthermore, a liquid level sensor is installed inside the ink storage tank.

[0014] Furthermore, the bottom of the inkjet printing device is placed inside the adjustment device, and the adjustment device is equipped with a swing positioning device embedded in the bottom of the inkjet printing device.

[0015] Furthermore, the automated control system also includes a motion control module, which is signal-connected to the adjustment device and the swing positioning device, and is used to adjust the lifting height of the adjustment device and the swing angle of the swing positioning device in real time.

[0016] This utility model also provides a weaving process for a weaving device with inkjet printing function. The weaving device includes a yarn scaffold for preparing yarn for weaving, an inkjet printing device for inkjet printing the yarn from the yarn scaffold, and a weaving machine for weaving the inkjet-printed yarn. The inkjet printing device performs the printing process on the yarn. The process includes the following steps:

[0017] S1. Yarn preparation steps: Select appropriate yarn according to the weaving needs and place it on the yarn frame device. Position and guide the yarn through the yarn guiding device in the weaving equipment.

[0018] S2. Inkjet printing step: The yarn is introduced into the inkjet printing device through the yarn guiding device, and the yarn is precisely inkjet printed.

[0019] S3. Printing and processing steps: The yarn is sequentially subjected to inkjet processing, setting processing, surface impurity removal processing, lubrication processing, and static electricity elimination processing. Each processing step is coordinated through a signal connection to an automated control system to optimize yarn performance.

[0020] The beneficial effects of this utility model are:

[0021] 1. Precise single-yarn inkjet printing: Through the inkjet printing device, this utility model can perform precise inkjet printing on each yarn. This design ensures the color consistency and uniformity of each yarn, avoiding the color unevenness problem commonly found in traditional inkjet printing methods.

[0022] 2. Highly efficient tension control: The automated control system monitors and controls the yarn tension, ensuring the stability and tension consistency of the yarn during the inkjet printing process, thus improving the quality of the fabric.

[0023] 3. Cost-effectiveness: Compared with traditional inkjet printing and warping processes, this utility model simplifies the process flow. By combining the inkjet printing steps and printing processing steps with the cooperation of the automated control system and the yarn guide wheel, the breakage rate caused by uneven yarn tension can be effectively reduced, thereby reducing production costs. At the same time, the modular design and automated control also reduce equipment maintenance costs.

[0024] In summary, this utility model provides a highly efficient, environmentally friendly, flexible, and cost-effective yarn inkjet printing solution, which is suitable for the growing demand of the modern textile industry for high-quality and personalized products. Attached Figure Description

[0025] 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:

[0026] Figure 1 This is a schematic diagram of the control logic of the automated control system of this utility model;

[0027] Figure 2 This is a schematic diagram of yarn processing in the weaving process of this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a warp knitting machine with inkjet printing function according to the present invention;

[0029] Figure 4 This is a partial cross-sectional view of the inkjet printing device in the warp knitting machine of this utility model;

[0030] Figure 5 This is a cross-sectional schematic diagram of the adjusting fixed seat in the warp knitting machine of this utility model;

[0031] Figure 6 This is a cross-sectional structural diagram of the swing positioning device in the warp knitting machine of this utility model;

[0032] Figure 7 This is a top view of the structure of the turntable in the warp knitting machine of this utility model.

[0033] Figure 8 This is a schematic diagram of the structure of a warp knitting machine with inkjet printing function according to the present invention;

[0034] Figure 9 This is a partial cross-sectional structural diagram of the warp knitting machine of this utility model;

[0035] Figure 10 for Figure 8 A magnified cross-sectional structural diagram of section A;

[0036] Figure 11 This is a cross-sectional structural diagram of the anti-return assembly of the warp knitting machine according to this utility model;

[0037] Figure 12 This is a bottom view of the inkjet head structure in the warp knitting machine of this utility model.

[0038] The reference numerals in the attached figures are as follows: 1. Yarn frame assembly; 2. Inkjet printing device; 21. Inkjet module; 211. Connecting slot; 212. Slot; 213. Position sensor; 22. Inkjet assembly; 221. Yarn channel; 222. Inkjet head; 223. Waste ink tank; 224. Ink reservoir; 225. Electric piston; 226. Ink discharge pipe; 227. Check valve assembly; 2271. Check valve seat; 2272. Ink inlet; 2273. Movable cavity; 2274. Check ball; 2275. Return spring; 2276. Ink outlet channel; 228. Nozzle; 229. Ink guide tube; 23. Yarn guide roller; 231. Speed... 24. Temperature sensor; 25. Drying module; 26. Cleaning module; 27. Lubrication module; 28. Antistatic module; 29. ​​Adjustment fixing seat; 201. U-shaped seat; 202. Adjustment groove; 203. Lifting plate; 204. Swing positioning device; 2041. Base; 2042. Turntable; 2043. Swing motor; 2044. Elastic block; 205. Drive cavity; 206. Motor; 207. Transmission screw; 208. Second yarn channel; 209. Yarn hole; 2000. Bracket; 21. Braiding machine; 22. Yarn cylinder; 43. Yarn inlet; 44. Yarn outlet; 45. Yarn guide plate; 46. Yarn collecting plate. Detailed Implementation

[0039] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0040] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a knitting device with inkjet printing function: the knitting device with inkjet printing function includes a yarn frame device 1 for preparing yarn for knitting, an inkjet printing device 2 for inkjet printing the yarn from the yarn frame device 1, and a knitting machine 3 for knitting the inkjet-printed yarn. The inkjet printing device 2 includes an inkjet module 21, a yarn guide wheel 23, and a drying module 24, a cleaning module 25, a lubrication module 26, and an anti-static module 27 for processing the yarn. It includes the following steps:

[0041] S1. Yarn preparation steps: Select appropriate yarn according to the weaving needs and place it on the yarn frame device 1. Position and guide the yarn through the yarn guiding device in the weaving equipment to ensure that the yarn is neat and the tension is uniform.

[0042] S2, Inkjet printing step: The yarn is introduced into the inkjet printing device 2 through the yarn guiding device, and the yarn is precisely inkjet printed.

[0043] S3. Printing and processing steps: The yarn is sequentially subjected to inkjet processing, shaping processing, surface impurity removal processing, lubrication processing and static elimination processing. Each processing step is coordinated through signal connection to the automated control system to achieve yarn performance optimization.

[0044] To broaden its applicability, the knitting machine 3 is a warp knitting machine.

[0045] In order to achieve efficient connection between inkjet printing and weaving process, in the inkjet printing step, inkjet printing device 2 can be set between the input end of warp knitting machine and the output end of yarn frame device 1, and is used to spray ink onto the yarn located between warp knitting machine and yarn frame device 1. The yarn frame device 1, inkjet printing device 2 and warp knitting machine are arranged in sequence in the horizontal direction.

[0046] To optimize the yarn transmission path, in the inkjet printing step, the yarn at the output end of the yarn frame device 1 is directly transmitted to the input end of the warp knitting machine after being inkjet printed by the inkjet printing device 2.

[0047] In order to ensure that the yarn has a good forming effect and surface cleanliness before weaving, in the printing process, the drying module 24 uses a hot air circulation system to quickly shape the yarn, and the cleaning module 25 uses a flexible brush to remove impurities from the surface of the yarn.

[0048] In order to reduce the frictional resistance of the yarn in the weaving equipment, in the printing process, the lubrication module 26 reduces the friction of the yarn during the weaving process by using lubricant, and the antistatic module 27 eliminates static electricity on the yarn by using metal patches. The lubrication and antistatic treatments can effectively reduce the wear and static interference of the yarn during the weaving process.

[0049] To ensure product quality stability, the weaving equipment is also equipped with an automated control system that monitors and adjusts the yarn tension, yarn feeding speed, and corresponding inkjet printhead spraying speed in real time, ensuring weaving stability and product quality. The automated control system also includes a motion control module, which is connected to the adjustment device and the swing positioning device 284 for real-time control of the lifting height of the adjustment device and the swing angle of the swing positioning device 284, ensuring the accuracy of the yarn entering the yarn channel 221 of the inkjet printing device 2 from the yarn frame device 1.

[0050] To facilitate the use of the warp knitting machine, during the knitting steps, the parameters and needle type of the warp knitting machine are adjusted according to the designed lace pattern. The basic structure of the lace is formed by the interweaving and winding of the yarns, and the three-dimensionality and layering of the lace are increased by the needle shifting and crossing operations.

[0051] To facilitate the use of the warp knitting machine, in the finished product knitting step, the inkjet-printed yarn is arranged into a warp layer of a certain width, the tension and arrangement density of the yarn are adjusted, and then the warped yarn is introduced into the needle bed of the warp knitting machine and knitted through the loop forming mechanism of the warp knitting machine.

[0052] To adapt to different weaving needs, this utility model also provides a weaving device with inkjet printing function, which includes:

[0053] Yarn rack device 1, which is used to store and output yarn, providing a stable yarn input for subsequent inkjet printing and weaving processes;

[0054] The inkjet printing device 2 includes an inkjet module 21. The top of the inkjet module 21 has several inkjet components 22, which together form an inkjet area. Below the inkjet area is a yarn printing and processing mechanism. The yarn processing mechanism and the inkjet area are equipped with at least one yarn guide wheel 23. The inkjet printing device 2 performs precise inkjet printing and processing on the yarn output from the yarn frame device 1 to ensure that each yarn has a consistent and uniform color.

[0055] The braiding machine 3 is used to weave the inkjet-printed yarn into the desired fabric.

[0056] The inkjet printing device 2 can be located between the input end of the warp knitting machine and the output end of the yarn frame device 1, or located at the front of the yarn frame device 1, such as... Figure 10 As shown, the front part of the yarn frame device 1 is located in the hollow part on the right side of the yarn collecting plate 44.

[0057] like Figure 10 As shown, the inkjet printing device 2 in this application includes multiple inkjet components 22 arranged in a row. The ink input to the inkjet components 22 can be all the same color, all different colors, or partly the same color and partly different colors. The inkjet components 22 are divided into upper and lower parts. The upper part is the inkjet head 222 connected to the ink guide tube 229, and the lower part is the waste ink tank 223 connected to the ink discharge tube 226. Yarn passes through the space between the inkjet head 222 and the waste ink tank 223 (yarn pipe 221). Each inkjet head 222 is connected to an independent ink storage tank 224, which can ensure a stable ink supply and prevent external interference.

[0058] The inkjet printing process of this application achieves precise inkjet printing. The specific process is as follows: When the yarn enters the yarn channel of the inkjet module 21 through the guide roller 23, the guide roller 23, together with the speed sensor 231 on its rotating shaft and the position sensor 213 located on the inner wall of the inkjet module 21 parallel to the speed sensor 231, ensures and adjusts the yarn to maintain stable tension and position in real time. The automatic control system activates the corresponding inkjet head 222 according to the preset pattern and color requirements. Each inkjet head 222 sprays ink onto the yarn surface with micron-level precision through the nozzle 228 according to the instructions of the automatic control system, forming a uniform color. The position sensor 213 and the speed sensor 231 monitor the running status of the yarn in real time. The automatic control system dynamically adjusts the inkjet parameters according to the feedback data to ensure the accuracy and stability of inkjet printing. If uneven inkjet printing is detected, the automatic control system adjusts the movement speed of the guide roller 23 and the inkjet speed of the inkjet head 222 to make the tension of the yarn and the ink spray uniform in the inkjet area.

[0059] The specific working principle of each module in the printing process of this application is as follows: The temperature of the drying module 24 is set to 80-120℃. The hot air circulation system uses a heating device to heat the air to the set temperature (usually 80℃-120℃), so that the hot air circulates in the closed space. The flow of hot air not only removes the moisture on the surface of the yarn, but also causes the fiber molecules in the yarn to quickly arrange and fix under the action of high temperature and air flow, forming a stable morphological structure, thereby achieving rapid shaping and effectively removing excess moisture from the yarn.

[0060] In the cleaning module 25 of this application, the brush rotation speed is 200-3000rpm (the corresponding rotation speed is different depending on the yarn material, and is determined by a preset value). Through the high-speed rotation of the flexible brush, friction is generated with the yarn surface, and impurities and fuzz are peeled off from the yarn surface. This can effectively remove impurities and fuzz from the yarn surface, reduce the roughness of the yarn surface, improve the surface smoothness, and reduce the breakage rate during weaving.

[0061] The lubricant in the lubrication module 26 of this application is evenly sprayed onto the yarn surface through a micro-orifice nozzle to form a thin lubricating layer, which reduces the friction between the yarn and the weaving equipment and between the yarns, thereby reducing the coefficient of friction of the yarn during the weaving process, reducing yarn wear, extending the service life of the yarn, and improving weaving efficiency.

[0062] The antistatic module 27 in this application operates at a voltage of 2-10kV. It utilizes the electrostatic charge released by the metal patch to neutralize the static charge on the yarn surface. When a charged yarn approaches the metal patch, electrostatic induction causes a redistribution of free electrons within the patch. If the metal patch is grounded, electrons flow through the grounding path, neutralizing some of the static charge and reducing the yarn surface potential. Simultaneously, under a high electric field, the metal patch ionizes the surrounding air, generating a large number of positive and negative ions. These ions adhere to the yarn surface, neutralizing the static charge and further eliminating static electricity. Throughout the weaving process, the antistatic module 27 continuously operates, ensuring a low yarn potential and preventing problems such as tangling and dust adsorption caused by static electricity. This improves weaving stability and product quality, effectively preventing interference from static electricity to weaving equipment and personnel, reducing dust and other impurities adsorbed by static electricity, and enhancing product quality.

[0063] The automated control system of this application is connected to various modules / devices via signals. Position sensor 213 monitors the position change of guide wheel 23 in real time and converts the position signal into an electrical signal, which is then sent to the system. The system determines whether the yarn deviates from the predetermined path based on the position signal. If the position deviation exceeds a set range, the system adjusts the motor driver to change the swing angle or position of guide wheel 23, ensuring the yarn accurately enters the weaving area. Speed ​​sensor 231 monitors the rotational speed of guide wheel 23 in real time and converts the rotational speed signal into an electrical signal, which is then sent to the system. The system calculates the yarn conveying speed based on the rotational speed signal and compares it with a preset speed. If the speed deviation exceeds a set range, the system adjusts the output frequency of the motor driver to change the rotational speed of guide wheel 23.

[0064] The system adjusts the yarn conveying speed based on the combined data from position sensor 213 and speed sensor 231, thereby precisely controlling the yarn tension. Operators can input process parameters through the touch screen on the system and monitor the equipment's operating status in real time.

[0065] The ink reservoir 224 of this application is also equipped with a liquid level sensor for real-time monitoring of the ink level inside the reservoir. The liquid level sensor consists of a capacitive sensing element. When the ink level changes, the sensing element moves accordingly, triggering a magnetic switch or changing the capacitance value. The liquid level sensor converts the liquid level change signal into an electrical signal and transmits it to the automatic control system. The automatic control system receives the electrical signal from the liquid level sensor and makes a judgment based on a preset liquid level range (such as a minimum and maximum liquid level). If the liquid level is lower than the set minimum value, the system will trigger an alarm and start the ink replenishment program. If the liquid level is higher than the set maximum value, the system will suspend ink supply to prevent ink loss. To prevent ink overflow, the printhead flow rate control module of the printhead 222 consists of a flow control valve and a drive circuit. The flow control valve is installed on the ink guide tube 229 of the printhead 222 and is used to regulate the ink flow rate. The drive circuit receives instructions from the automatic control system and controls the opening and closing angle of the flow control valve. The automatic control system dynamically adjusts the opening and closing angle of the flow control valve according to the yarn conveying speed and the preset inkjet pattern to ensure that the ink flow rate of the printhead 222 matches the yarn movement speed. When the yarn conveying speed changes, the printhead flow rate control module will adjust the ink flow rate in real time to avoid uneven inkjet or ink waste. In addition, the liquid level sensor and the flow control valve are widely used in the prior art, so they are not shown in the figure.

[0066] The synergistic effect of the printhead flow rate control module and the liquid level sensor in this application ensures the accuracy and stability of inkjet printing. Through real-time monitoring and dynamic adjustment, it can simultaneously avoid problems of ink waste and insufficient supply.

[0067] The position sensor 213 described above focuses on monitoring the position change of the guide roller 23 to ensure the accuracy of the yarn path; the speed sensor 231 focuses on monitoring the rotational speed of the guide roller 23 to ensure the stability of the yarn delivery speed; the liquid level sensor focuses on monitoring the ink level in the ink tank 224 to ensure the stability of the ink supply; and the inkjet head 222 flow rate control module focuses on adjusting the ink flow rate of the inkjet head 222 to ensure the uniformity of inkjet printing. The signal reception and processing between each module / device are independent of each other, and there is no signal interference or conflict.

[0068] In this application, the automated control system adopts a signal priority mechanism to ensure that the signals of key modules are processed first. Among them, the position sensor 213 has the highest priority because the accuracy of the yarn path directly affects the weaving quality. The liquid level sensor has a relatively high priority because the stability of the ink supply directly affects the continuity of inkjet printing. The flow rate control modules of the speed sensor 231 and the inkjet head 222 can dynamically adjust their priorities according to real-time needs to ensure the matching of yarn delivery speed and ink volume. The automated control system dynamically adjusts the working parameters of each module by comprehensively analyzing the feedback data of each module to ensure the stability and efficiency of the entire system. In addition, the automated control system also has a built-in diagnostic function that can automatically detect faults in each module and issue alarms to ensure timely handling.

[0069] Example 1

[0070] This application is used in warp knitting machines;

[0071] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this utility model also provides a warp knitting machine with inkjet printing function. The inkjet printing device 2 is located between the output end of the yarn frame device 1 and the input end of the warp knitting machine. The bottom of the inkjet module 21 is provided with an adjustment fixing seat 28. The adjustment fixing seat 28 includes a U-shaped seat body 281. The U-shaped seat body 281 is provided with an adjustment groove 282. The adjustment groove 282 is movably provided with a lifting plate 283. The top surface of the lifting plate 283 is provided with a swing positioning device 284 embedded in the bottom outer wall of the inkjet module 21. The top of the U-shaped seat body 281 is provided with a drive cavity 285. The drive cavity 285 is provided with a motor 286 with the output end facing downward. The motor is connected to the automatic control system through a signal. The automatic control system sends a specified control signal through the connection signal. The output end of the motor 286 is provided with a transmission screw 287 that is vertically fitted into the adjustment groove 282. The bottom of the transmission screw 287 is threadedly connected to the lifting plate 283.

[0072] To prevent yarn input from being skewed and affecting the weaving process, the bottom surface of the inkjet module 21 is provided with a connecting groove 211 corresponding to the swing positioning device 284. The swing positioning device 284 includes a base 2841 and a turntable 2842. The turntable 2842 is located on the upper surface of the base 2841. The base 2841 is provided with a swing motor 2843 that drives the turntable 2842 to rotate. The swing motor 2843 is connected to the automatic control system via a signal. The automatic control system sends a specified control signal through the connection signal. The top surface of the turntable 2842 has a ring array of several elastic locking blocks 2844. The inner wall of the top surface of the connecting groove 211 is provided with a locking groove 212 that engages with the elastic locking blocks 2844.

[0073] like Figure 4 As shown, the inkjet printer in Embodiment 1 includes a support 29 with several hollow chambers. Each hollow chamber of the support 29 is provided with an inkjet printer 2. The inkjet printer 2 has a yarn inlet 41 on the side facing the yarn frame device 1 and a yarn outlet 42 at the bottom end.

[0074] like Figure 5 As shown, in Embodiment 1, the U-shaped base 281 has a second yarn channel 288 in the middle of its bottom. The lifting plate 283 has a yarn hole 289 in the middle that corresponds to the second yarn channel 288. The yarn hole 289 is connected to the yarn outlet 42 at the bottom of the inkjet module 21. The adjusting groove 282 has a U-shaped structure. If it is necessary to adjust the height of the yarn being transported during the weaving process, the motor 286 can be controlled by the automatic control system to drive the transmission screw 287 to rotate. The transmission screw 287 drives the threaded... The connected lifting plate 283 moves up or down along the adjusting groove 282. The movement of the lifting plate 283 is transmitted to the inkjet printing device 2 through the swing positioning device 284, causing the inkjet printing device 2 to move up or down as a whole, thereby adjusting the input angle of the yarn. The adjusting groove 282 has a U-shaped structure and is installed inside the U-shaped base 281. This design provides a stable guide track for the lifting plate 283. The adjusting groove 282 is located inside the U-shaped base 281, and the lifting plate 283 moves up and down within the adjusting groove 282 to ensure stability during the movement.

[0075] like Figure 6 As shown, if the machine is placed at an angle, the swing motor 2843 can be controlled by the automatic control system to operate. The swing motor 2843 drives the turntable 2842 to rotate. The turntable 2842 drives the inkjet printing device 2 to swing slightly through the elastic block 2844, so that the input yarn and the inkjet printing device 2 are in the same straight line. The swing angle range is ±20°. The elastic block 2844 engages with the slot 212 of the inkjet printing device 2 to ensure that the inkjet module 21 remains stable during the lifting process and will not loosen due to vibration or external force.

[0076] When the process described in this application is applied to a warp knitting machine, several yarns output from the yarn frame device 1 enter the inkjet printing device 2. The yarns enter through the yarn inlet 41 of the inkjet printing device 2, are positioned by the guide roller 23, and enter the inkjet area. Several inkjet components 22 perform inkjet printing on the yarns. Excess waste ink flows into the waste ink tank 223. The inkjet-printed yarns enter the yarn processing stage. After processing by the drying module 24, cleaning module 25, lubrication module 26, and antistatic module 27, the yarns are output from the yarn outlet 42 of the inkjet printing device 2, pass through the adjusting and fixing seat 28, and are finally introduced into the warp knitting machine for weaving.

[0077] Example 2

[0078] Reference Figure 8 and Figure 9 As shown, this utility model also provides a knitting device with inkjet printing function. The inkjet printing device 2 is located at the front of the yarn frame device 1, in the hollow part on the right side of the yarn collecting plate 44. The inkjet printing device 2 includes an inkjet assembly 22. The middle section of the inkjet assembly 22 is provided with a yarn channel 221. The top surface of the yarn channel 221 is provided with at least one inkjet head 222 with a chamber. The bottom surface of the yarn channel 221 is provided with a waste ink tank 223. The bottom of the inkjet assembly 22 is provided with an ink storage tank 224 that communicates with the waste ink tank 223 through a pipe. The ink storage tank 224 is provided with an electric piston 225 and a squeezing plate for squeezing the liquid in the ink storage tank 224. The outlet of the ink storage tank 224 is connected to an ink discharge pipe 226, and the ink discharge pipe 226 is provided with a check valve component 227.

[0079] In Embodiment 2, the yarn frame device 1 has several hollowed-out slots. A yarn tube 4 is rotatably mounted in the slots via a rotating shaft connection. The inkjet printing device 2 has a yarn inlet 41 facing the end face of the yarn tube 4. A yarn outlet 42 is provided on the side of the inkjet printing device 2 that is flush with the slots. A yarn guide plate 43 is provided between the yarn tube 4 and the inkjet printing device 2. A yarn collecting plate 44 for positioning the yarn is provided on the yarn guide plate 43. A number of yarn outlet holes are provided on the yarn collecting plate 44.

[0080] like Figure 10 As shown, in Embodiment 2, the outer wall of the inkjet assembly 22 is connected to an ink guide tube 229 corresponding to the inkjet head 222. The bottom surface of the inkjet head 222 is also provided with a nozzle 228. The output end of the electric piston 225 is horizontally set. The other end of the ink discharge tube 226 is connected to the inkjet head 222. The inner wall of the ink storage tank 224 is provided with a liquid level sensor. The bottom surface of the waste ink tank 223 has an inclination.

[0081] Reference Figure 11 In Embodiment 2, the check valve assembly 227 includes a check valve seat 2271. The check valve seat 2271 has an ink inlet 2272 facing the electric piston 225. The check valve seat 2271 has a movable cavity 2273 connected to the ink inlet 2272. A check valve bead 2274 that closes the ink inlet 2272 is movably disposed in the movable cavity 2273. A return spring 2275 is provided between the check valve bead 2274 and the inner wall of the movable cavity 2273. An ink outlet channel 2276 is provided on the side of the check valve seat 2271 away from the ink inlet 2272. The ink outlet channel 2276 is connected to the movable cavity 2273.

[0082] Reference Figure 12In Embodiment 2, the inkjet head 222 and the nozzle 228 are connected by a threaded seal, and the bottom of the inkjet head 222 is provided with a sealing ring that surrounds the nozzle 228.

[0083] like Figure 9 As shown, when the process described in this application is applied to a warp knitting machine, the yarn wound on the yarn bobbin 4 is output to the inkjet printing device 2 through the yarn collecting plate 44 on the yarn guide plate 43. The yarn guide plate 43 and the yarn collecting plate 44 cooperate to ensure the path of the yarn from the yarn bobbin 4 to the inkjet printing device 2. The inkjet printing device 2 performs yarn inkjet printing. The yarn enters the inkjet module 21 through the yarn inlet 41, and then simultaneously passes through the yarn channels 221 of several inkjet components 22. The inkjet heads 222 on the yarn channels 221 eject ink to print the yarn. Excess ink flows into the waste ink tank 223 and then into the ink storage tank 224 through the pipe. The liquid level sensor in the ink reservoir 224 detects the ink level. When the level reaches the set range, the liquid level sensor sends a signal to the automatic control system. The automatic control system controls the electric piston 225 in the ink reservoir 224 to operate. The electric piston 225 squeezes the ink into the ink discharge pipe 226. The check valve 227 in the ink discharge pipe 226 effectively prevents the ink from flowing back. With the reciprocating squeezing of the electric piston 225, the ink will re-enter the chamber of the inkjet head 222 through the ink discharge pipe 226 for recycling. The yarn after inkjet printing is guided by the yarn guide wheel 23 and output from the yarn outlet 42 to enter the weaving equipment for weaving.

[0084] In this application, the yarn outlet 42 of the inkjet printing module can be located at the bottom of the inkjet printing device 2 and connected to the yarn hole 289 corresponding to the second yarn channel 288, such as in embodiment 1. Alternatively, it can be located at the bottom end of the inkjet printing device 2 on the side flush with the slot, such as in embodiment 2. Different yarn outlets 42 can be adapted according to different weaving equipment.

[0085] The beneficial effects of this utility model are: 1. Precise inkjet printing of a single yarn: Through the inkjet printing device 2, this utility model can perform precise inkjet printing on each yarn. This design ensures the color consistency and uniformity of each yarn and avoids the problem of uneven color that is common in traditional inkjet printing methods.

[0086] 2. Highly efficient tension control: The automated control system monitors and controls the yarn tension, ensuring the stability and tension consistency of the yarn during the inkjet printing process, thus improving the quality of the fabric.

[0087] 3. Cost-effectiveness: Compared with traditional inkjet printing and warping processes, this utility model simplifies the process flow. By combining the inkjet printing steps and printing processing steps with the automatic control system and the guide roller 23, the breakage rate caused by uneven yarn tension can be effectively reduced, thereby reducing production costs. At the same time, the modular design and automatic control also reduce equipment maintenance costs.

[0088] In summary, this utility model provides a highly efficient, environmentally friendly, flexible, and cost-effective yarn inkjet printing solution, which is suitable for the growing demand of the modern textile industry for high-quality and personalized products.

[0089] The inkjet printing in this embodiment can also be referred to as inkjet coloring or inkjet dyeing.

[0090] like Figure 1 As shown, the automated control system in this embodiment is connected to each sensor and execution module via a PLC controller or industrial computer (this control device is a conventional control component on the market, so its location is not marked in the figure).

[0091] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0092] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A knitting device with inkjet printing function, characterized in that: The knitting equipment with inkjet printing function includes: a yarn frame device (1), an inkjet printing device (2), an automatic control system, and a knitting machine (3). The inkjet printing device (2) is installed on one side of the yarn frame device (1), and the knitting machine (3) is installed on the other side of the inkjet printing device (2) away from the yarn frame device (1). The yarn frame device (1) and the inkjet printing device (2) are connected by a yarn guiding device, which positions and guides the yarn. The knitting equipment is equipped with an automatic control system, which includes a yarn feeding speed monitoring module and a printhead flow rate control module.

2. The weaving equipment according to claim 1, characterized in that: The yarn guiding device includes a yarn guiding support plate (43) and a yarn collecting plate (44).

3. The weaving equipment according to claim 1, characterized in that: The inkjet printing device (2) is provided with an inkjet module (21), a drying module (24), a cleaning module (25), a lubrication module (26) and an antistatic module (27) in sequence. The modules are connected by a yarn guide wheel (23) to achieve continuous processing.

4. The weaving equipment according to claim 3, characterized in that: The drying module (24) quickly shapes the yarn through a hot air circulation system, the cleaning module (25) removes impurities from the yarn surface through a flexible brush, the lubrication module (26) reduces friction of the yarn during weaving through lubricant, and the antistatic module (27) eliminates static electricity on the yarn through metal sheet patches.

5. The weaving equipment according to claim 4, characterized in that: The inkjet module (21) is provided with at least one inkjet assembly (22), and an inkjet head (222) is provided inside the inkjet assembly (22). An ink guide tube (229) is connected above the inkjet head (222), a yarn channel (221) is provided below the inkjet head (222), a waste ink tank (223) is provided below the yarn channel (221), and an ink storage tank (224) is provided below the waste ink tank (223). One side of the ink storage tank (224) is connected to an ink discharge pipe (226).

6. The weaving equipment according to claim 5, characterized in that: The ink discharge tube (226) is equipped with a corresponding check valve component (227).

7. The weaving equipment according to claim 5, characterized in that: The ink reservoir (224) is equipped with a liquid level sensor.

8. The weaving equipment according to claim 1, characterized in that: The bottom of the inkjet printing device (2) is placed inside the adjustment device, and the adjustment device is provided with a swing positioning device (284) embedded in the bottom of the inkjet printing device (2).

9. The weaving equipment according to claim 8, characterized in that: The automated control system also includes a motion control module, which is connected to the adjustment device and the swing positioning device (284) by signal, and is used to adjust the lifting height of the adjustment device and the swing angle of the swing positioning device (284) in real time.

Images