A continuous dyeing production line for high-strength nylon thread

Abstract

The present invention relates to the technical field of nylon thread production, and more specifically discloses a continuous dyeing production line for high-strength nylon threads, which includes a production line frame, and also includes a wire guiding plate, a traction mechanism, a heating roller, a tension self-adjusting mechanism, a dyeing tank, a liquid suction box, a drying box, a monitoring mechanism and a number of auxiliary wire rollers arranged in sequence along the movement path of the nylon thread. A controller is arranged on the side of the production line frame. A fifth wire roller is fixedly connected between the inner walls of the dyeing tank. A stirrer and a lifting mechanism are arranged in the dyeing tank. A reciprocating mechanism is arranged on the side of the production line frame. The reciprocating mechanism controls the double-direction reciprocating lifting movement of the lifting mechanism, and then drives the nylon thread to rise and fall simultaneously in the dyeing tank to maintain tension stability; ensuring that the nylon thread can fully contact the dye, improving the uniformity and depth of dyeing, and improving the dyeing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of nylon thread production, and more particularly to a continuous dyeing production line for high-strength nylon thread. Background Art

[0002] Nylon thread is twisted from nylon yarns. The produced thread has a certain tensile force, strong tensile force, luster, high temperature resistance, and high speed. It is mainly applicable to leather sewing, such as: shoe industry, bag industry, sofa industry, etc. Nylon thread is the most commonly used leather sewing thread.

[0003] Patent No. CN112609269A discloses a dyeing and cooling device for continuous production of high-strength nylon thread, including a wire supply device, a stranding device, a dyeing device, a cooling device, and a winding device arranged in sequence along the nylon thread production direction. The nylon thread is guided between the devices through a wire guiding device. The wire guiding device includes a wire guiding roller group, a dyeing roller group, a transmission roller group, and a cooling roller group arranged in sequence; the dyeing device includes a dyeing chamber, and an immersion table with a cavity is arranged inside the dyeing chamber, and the dyeing roller group is installed inside the immersion table; the improved nylon thread processing production line is composed of a wire supply device, a stranding device, a dyeing device, a cooling device, and a winding device. The nylon thread is transmitted through the wire guiding device, and production, dyeing, cooling, and winding are completed within the production line process, solving the problem of low degree of continuity in nylon thread production and improving the production and processing progress of nylon thread.

[0004] However, the following problems still exist in the prior art: The nylon thread has a fixed movement route in the dyeing tank. If the dye is unevenly distributed during the dyeing process, it will lead to inconsistent dyeing effects, thereby reducing the dyeing quality. The nylon thread can be lifted and lowered in the dyeing tank to improve the dyeing quality, but the tension control is not precise after the nylon thread is lifted and lowered, which easily causes the wire to be loose or broken, and the liquid attached to the surface of the dyed nylon thread is not thoroughly treated, affecting the subsequent process. Therefore, we propose a continuous dyeing production line for high-strength nylon thread. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a continuous dyeing production line for high-strength nylon thread to solve the problems existing in the above background art.

[0006] The present invention provides the following technical solution: a continuous dyeing production line for high-strength nylon threads, including a production line frame, and further including a wire guiding plate, a traction mechanism, a heating roller, a tension self-adjusting mechanism, a dyeing tank, a liquid suction box, a drying box, a monitoring mechanism and a plurality of auxiliary wire rollers arranged in sequence along the movement path of the nylon thread. A controller is arranged on the side of the production line frame. A fifth wire roller is fixedly connected between the inner walls of the dyeing tank. A stirrer and a lifting mechanism are arranged in the dyeing tank. A reciprocating mechanism is arranged on the side of the production line frame. The reciprocating mechanism controls the double-direction reciprocating lifting movement of the lifting mechanism, and then drives the nylon thread to rise and fall simultaneously in the dyeing tank to maintain tension stability. A liquid suction mechanism is arranged in the liquid suction box. The liquid suction mechanism sucks the dyeing liquid on the surface of the nylon thread to reduce dye waste. The drying box is used to quickly dry the nylon thread to ensure that the dyed wire is dry.

[0007] The lifting mechanism includes four second slide rails, two second wire rollers, a lengthening shaft and two first straight plates. A second moving slider is slidably connected in each second slide rail. Each second wire roller is rotatably connected between two symmetric second moving sliders. The lengthening shaft is rotatably connected between the inner walls of the dyeing tank. The two first straight plates are fixedly connected to the circumferential surface of the lengthening shaft. A chute is opened at the end of each first straight plate close to the second wire roller. The ends of each second wire roller are respectively slidably connected in the corresponding chute.

[0008] Further, the reciprocating mechanism includes a third slide rail, a rack, a second straight plate, a second motor, a disc, an eccentric block and a spur gear. The third slide rail is fixedly connected to the side of the production line frame. The rack and the second straight plate are both slidably connected to the surface of the third slide rail. The rack is fixedly connected to the second straight plate. A second chute is opened on the side of the second straight plate. The second motor is fixedly connected to the inner wall of the production line frame. The disc is fixedly connected to the output end of the second motor. The eccentric block is fixedly connected to the side of the disc. The eccentric block is slidably connected in the second chute. The spur gear is fixedly connected to one end of the lengthening shaft passing through the dyeing tank. The spur gear meshes with the rack.

[0009] Further, the liquid suction mechanism includes a vacuum pump, a plurality of flat suction nozzles and a hose. The vacuum pump is fixedly connected to the bottom of the liquid suction box. A plurality of flat suction nozzles are fixedly connected to the air inlet end of the vacuum pump. The end of the flat suction nozzle is located in the liquid suction box. The hose is fixedly connected to the exhaust end of the vacuum pump. A reflux port is arranged on the side of the dyeing tank. The hose is fixedly connected to the reflux port.

[0010] Further, a plurality of third wire rollers are arranged in the liquid suction box. A plurality of fourth wire rollers and infrared heaters are arranged in the drying box. The nylon thread moves along the path of the third wire rollers and the fourth wire rollers and is quickly dried by the infrared heaters.

[0011] Further, the tension self-adjusting mechanism includes a fourth slide rail, a sixth wire guide roller, and two return springs. The fourth slide rail is provided with two ends respectively fixedly connected to the two side edges of the production line frame. The sixth wire guide roller is slidably connected between the two fourth slide rails. The two return springs are respectively fixedly connected between the lower inner wall of the corresponding fourth slide rail and the two ends of the sixth wire guide roller.

[0012] Further, the traction mechanism includes two first slide rails, two first wire guide rollers, a first motor, and a synchronous belt. The two first slide rails are respectively fixedly connected to the two side edges of the production line frame. The lower inner walls of the two first slide rails are both fixedly connected with first moving sliders. In each of the two first slide rails, there is a static slider slidably connected. A first wire guide roller is rotatably connected between each of the two first moving sliders and the static slider. At the top of each of the two first slide rails, an electric push rod is fixedly connected. The extending ends of the two electric push rods are respectively fixedly connected to the corresponding static sliders. The first motor is fixedly connected to the inner wall of the production line frame. A transmission wheel is fixedly connected to both the output end of the first motor and one end of the first wire guide roller. The synchronous belt is drivingly connected between the two transmission wheels.

[0013] Further, the monitoring mechanism includes a mounting plate and a number of industrial cameras. The mounting plate is fixedly connected to the upper side of the production line frame and is close to the end of the production line frame. A number of the industrial cameras are all fixedly connected to the upper side of the mounting plate.

[0014] Further, two wire guide plates are symmetrically arranged, which are respectively located at the starting end and the end of the production line frame. A number of wire holes are formed in the side part of the wire guide plate, and each nylon wire moves through the corresponding wire hole.

[0015] Further, a temperature sensor and a humidity sensor are fixedly connected to the side part of the dyeing tank. The temperature sensor and the humidity sensor are both electrically connected to the controller.

[0016] The technical effects and advantages of the present invention:

[0017] By providing a lifting mechanism and a reciprocating mechanism, the present invention is conducive to realizing the reverse synchronous lifting of the nylon wire in the dyeing tank, that is, when one second wire guide roller rises, the other second wire guide roller descends, and the displacement distances of the two second wire guide rollers are the same. Through the precise mechanical structure design, the precise control of the lifting movement of the nylon wire in the dyeing tank can be realized. This precise control ensures that the nylon wire can fully contact the dye, improves the uniformity and depth of dyeing, improves the dyeing quality, makes the dyed nylon wire bright and uniform in color. The two second wire guide rollers can rise and fall simultaneously, thereby maintaining the tension stability of the nylon wire, avoiding problems such as wire slack or breakage caused by uneven tension, and ensuring the continuous and stable operation of the production line.

[0018] The present invention is provided with a liquid suction box and a drying box, which is conducive to sucking the excess dye liquid attached to the surface of the nylon thread through the liquid suction mechanism, reducing dye waste. The nylon thread is heated by an infrared heater to remove the residual liquid on the surface of the wire, ensuring the drying of the dyed nylon thread, improving the dyeing uniformity, production efficiency and production quality, while reducing the production cost and energy consumption, meeting the requirements of environmental protection and energy conservation.

[0019] The present invention is provided with an industrial camera, a temperature sensor and a humidity sensor, which is conducive to real-time monitoring of the dyeing state of nylon through the industrial camera, timely discovering and feedbacking potential quality problems, and sending the temperature and concentration data corresponding to the temperature sensor and the humidity sensor to the controller to construct a data model for dyeing nylon thread for subsequent analysis and improvement. Through in-depth analysis of these data, the production line can continuously optimize the process parameters.

[0020] The present invention is provided with a tension self-adjusting mechanism, which is conducive to absorbing the impact and vibration generated during the movement of the nylon thread to a certain extent through the elastic support of the return spring, thereby stabilizing the tension to ensure the continuous and stable operation of the entire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic side view structure diagram of the present invention.

[0023] Figure 3 It is a schematic sectional view structure diagram of the present invention.

[0024] Figure 4 It is for the Figure 3 schematic diagram of the structure at position A of the present invention.

[0025] Figure 5 It is a schematic diagram of the traction mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the structure of the dyeing tank of the present invention.

[0027] Figure 7 It is a schematic diagram of the lifting mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the reciprocating mechanism of the present invention.

[0029] Figure 9 It is a schematic diagram of the structure of the liquid suction box of the present invention.

[0030] The reference numerals are: 1, production line frame; 2, wire board; 201, wire hole; 3, traction mechanism; 301, first slide rail; 302, first moving slider; 303, static slider; 304, electric push rod; 305, first wire roller; 306, first motor; 307, transmission wheel; 308, synchronous belt; 4, heating roller; 5, auxiliary wire roller; 6, controller; 7, dyeing tank; 701, return port; 702, fifth wire roller; 703, stirrer; 8, lifting mechanism; 801, second slide rail; 802, second moving slider; 803, second wire roller; 804, extension shaft; 805, first straight plate; 806, chute; 9, reciprocating mechanism; 901, third slide rail; 902, rack; 903, second straight plate; 904, second chute; 905, second motor; 906, disc; 907, eccentric block; 908, spur gear; 10, liquid suction box; 1001, third wire roller; 11, drying box; 1101, fourth wire roller; 1102, infrared heater; 12, mounting plate; 13, industrial camera; 14, liquid suction mechanism; 1401, vacuum pump; 1402, flat mouth suction nozzle; 1403, hose; 15, temperature sensor; 16, humidity sensor; 17, tension self-adjusting mechanism; 1701, fourth slide rail; 1702, sixth wire roller; 1703, return spring. Detailed implementation mode

[0031] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following embodiments are merely examples. A continuous dyeing production line for high-strength nylon wire involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] Referring to Figures 1-9 , the present invention provides a continuous dyeing production line for high-strength nylon wire, including a production line frame 1, and further including a wire board 2, a traction mechanism 3, a heating roller 4, a tension self-adjusting mechanism 17, a dyeing tank 7, a liquid suction box 10, a drying box 11, a monitoring mechanism and a plurality of auxiliary wire rollers 5 arranged in sequence along the movement path of the nylon wire. A controller 6 is arranged on the side of the production line frame 1. A fifth wire roller 702 is fixedly connected between the inner walls of the dyeing tank 7. A stirrer 703 and a lifting mechanism 8 are arranged in the dyeing tank 7. A reciprocating mechanism 9 is arranged on the side of the production line frame 1. The reciprocating mechanism 9 controls the double-direction reciprocating lifting movement of the lifting mechanism 8, and then drives the nylon wire to rise and fall simultaneously in the dyeing tank 7 to maintain tension stability. A liquid suction mechanism 14 is arranged in the liquid suction box 10. The liquid suction mechanism 14 sucks the dyeing liquid on the surface of the nylon wire to reduce dye waste. The drying box 11 is used to quickly dry the nylon wire to ensure that the dyed wire is dry.

[0033] The lifting mechanism 8 includes four second slide rails 801, two second wire rollers 803, an extension shaft 804, and two first straight plates 805. A second moving slider 802 is slidably connected in each second slide rail 801. Each second wire roller 803 is rotatably connected between two symmetric second moving sliders 802. The extension shaft 804 is rotatably connected between the inner walls of the dyeing tank 7. The two first straight plates 805 are fixedly connected to the circumferential surface of the extension shaft 804. Chutes 806 are provided at the ends of the first straight plates 805 close to the second wire rollers 803. The ends of each second wire roller 803 are respectively slidably connected in the corresponding chutes 806.

[0034] In this embodiment, it should be specifically explained that: the wire board 2 is installed at the starting end and the end of the production line frame 1. Specifically, the wire board 2 at the starting end is used to guide the nylon line from the pay-off device to smoothly enter the traction mechanism 3, and the wire board 2 at the end is used to limit the stable movement of the nylon line. The traction mechanism 3 is installed at the starting end of the dyeing production line, located between the wire board 2 and the dyeing tank 7, and is used to pull the nylon line smoothly into the dyeing tank 7. The heating roller 4 is installed between the traction mechanism 3 and the dyeing tank 7, located on the movement path of the nylon line, and is used to preheat the nylon line to improve the dyeing effect. The heating roller 4 includes a roller body, a heating element and a temperature control system. The roller body is heated by the heating element to preheat the nylon line before entering the dyeing tank 7 to improve the penetration of the dye. In order to improve the permeability and dyeing effect, a temperature control system is provided inside the heating roller 4 to ensure that the surface temperature of the roller is uniform and to avoid local overheating or overcooling. The surface of the heating roller 4 is smooth and is used to guide the movement direction of the nylon line to ensure that the line remains stable during the preheating process. The dyeing tank 7 is located between the heating roller 4 and the liquid suction box 10, and is composed of a tank body and a dye circulation system. The dye is evenly distributed in the tank body through the dye circulation system, so that the nylon line is fully exposed to the dye when passing through the dyeing tank 7 to complete the dyeing process. In addition, an agitator 703 is designed at the bottom of the dyeing tank 7. The dye is stirred by the agitator 703 to make the dye evenly distributed, prevent the dye from settling or stratifying, and ensure consistent dyeing effect. The liquid suction box 10 is located between the dyeing tank 7 and the drying box 11. When the nylon line passes through the dyeing tank 7 After entering the groove 7, there is a high probability that excess dye will adhere to its surface. The main reasons include the physical and chemical properties of the dye, dyeing process parameters and equipment design. After entering the liquid suction box 10, the excess dye liquid attached to the surface of the nylon line is sucked out by the liquid suction mechanism 14, which reduces dye waste and improves dyeing efficiency. The drying box 11 is located between the liquid suction box 10 and the end of the production line frame 1. It includes several fourth wire rollers 1101 and infrared heaters 1102. The infrared heater 1102 is used to heat the nylon line to remove the residual liquid on the surface of the wire to ensure that the nylon line is dry after dyeing. A temperature control system is provided inside. The temperature sensor monitors the temperature in the box in real time and feeds back the data to the controller 6. The controller 6 dynamically adjusts the infrared heater according to the set temperature. The power of 1102 ensures uniform internal temperature and avoids local overheating or overcooling. The fourth wire roller 1101 is used to guide the movement direction of the nylon line to ensure that the wire remains stable during the drying process. Several auxiliary wire rollers 5 are set and arranged along the movement path of the nylon line. They are located between different process links of the dyeing production line to guide the movement direction of the nylon line to ensure that the wire remains stable during dyeing, fixing, drying and other processes. Some auxiliary wire rollers 5 can be adjusted according to process requirements to ensure that the nylon line maintains appropriate tension and a smooth path during movement. It is important that the liquid suction box 10 and the drying box 11 of this solution are used in combination to absorb excess dye liquid attached to the surface of the nylon line, reduce dye waste, and improve dyeing uniformity, production efficiency and production quality.Meanwhile, the production cost and energy consumption are reduced, meeting the requirements of environmental protection and energy conservation.

[0035] The main difference between this embodiment and the prior art is that in this embodiment, a lifting mechanism 8 is adopted to assist the nylon thread to lift and lower in the dyeing tank 7. Specifically: two second guide rollers 803 are designed and located on both sides of the fifth guide roller 702. The extension shaft 804 is located below the fifth guide roller 702. The second slide rail 801 is used to limit the up and down linear sliding of the second moving slider 802, thereby limiting the up and down linear sliding of the second guide roller 803. The extension shaft 804 is connected to the reciprocating mechanism 9 to achieve reciprocating rotation, and then two first straight plates 805 are controlled to reciprocate. The chute 806 is limited at both ends of the second guide roller 803. When the first straight plate 805 follows the reciprocating swing of the extension shaft 804, the two second guide rollers 803 can achieve reverse synchronous lifting and lowering under the synchronous limiting action of the chute 806 and the second slide rail 801, that is, when one second guide roller 803 rises, the other second guide roller 803 descends, and the displacement distances of the two second guide rollers 803 are the same. Through precise mechanical structure design, precise control of the lifting movement of the nylon thread in the dyeing tank can be achieved. This precise control ensures that the nylon thread can fully contact the dye, improves the uniformity and depth of dyeing, improves the dyeing quality, makes the dyed nylon thread bright and uniform in color. The two second guide rollers 803 can rise and fall simultaneously, thus maintaining the tension stability of the nylon thread and avoiding problems such as wire slack or breakage caused by uneven tension, ensuring the continuous and stable operation of the production line.

[0036] The above structure is the main structure of this embodiment, which solves the problem of uneven dyeing. The reciprocating mechanism 9 is a prior structure. The specific structures and connection methods of the liquid suction box 10 and the drying box 11 are not specifically described in this embodiment. In addition, the liquid suction mechanism 14 sucking the dye also belongs to the prior art. Therefore, this application does not make a detailed limitation.

[0037] Refer to Figures 5-8 As shown in the figure, the reciprocating mechanism 9 includes a third slide rail 901, a rack 902, a second straight plate 903, a second motor 905, a disc 906, an eccentric block 907 and a spur gear 908. The third slide rail 901 is fixedly connected to the side of the production line frame 1. The rack 902 and the second straight plate 903 are both slidably connected to the surface of the third slide rail 901. The rack 902 is fixedly connected to the second straight plate 903. A second chute 904 is provided on the side of the second straight plate 903. The second motor 905 is fixedly connected to the inner wall of the production line frame 1. The disc 906 is fixedly connected to the output end of the second motor 905. The eccentric block 907 is fixedly connected to the side of the disc 906. The eccentric block 907 is slidably connected in the second chute 904. The spur gear 908 is fixedly connected to one end of the extension shaft 804 passing through the dyeing tank 7. The spur gear 908 meshes with the rack 902.

[0038] In this embodiment, it should be specifically noted that: the positions of the second motor 905 and the third slide rail 901 are fixed. The third slide rail 901 is used to restrict the linear movement of the rack 902 and the second straight plate 903. The disk 906, the eccentric block 907 and the second chute 904 constitute an eccentric motion. During operation, the output end of the second motor 905 drives the disk 906 to rotate. The disk 906 drives the eccentric block 907 to rotate eccentrically. Since the eccentric block 907 is located in the second chute 904, it drives the second straight plate 903 to move linearly back and forth, and finally drives the rack 902 to move linearly back and forth. Under the meshing action, the rack 902 drives the spur gear 908 to rotate back and forth, realizing the reciprocating swing of the drive extension shaft 804 and assisting the double reciprocating lifting movement of the second wire roller 803 in the dyeing tank 7. This motion mode can ensure that the nylon thread moves up and down continuously during the dyeing process, thereby improving the uniformity of dyeing. The design of the reciprocating mechanism 9 takes into account the different requirements of nylon threads of different specifications and types for the lifting speed and amplitude. By adjusting the output parameters in the first straight plate 805, precise dyeing treatment of different nylon threads can be achieved.

[0039] Referring to Figure 9 , the liquid suction mechanism 14 includes a vacuum pump 1401, a plurality of flat mouth suction nozzles 1402 and a hose 1403. The vacuum pump 1401 is fixedly connected to the bottom of the liquid suction box 10. A plurality of flat mouth suction nozzles 1402 are fixedly connected to the intake end of the vacuum pump 1401. The end of the flat mouth suction nozzle 1402 is located inside the liquid suction box 10. The hose 1403 is fixedly connected to the exhaust end of the vacuum pump 1401. A return port 701 is provided on the side of the dyeing tank 7, and the hose 1403 is fixedly connected to the return port 701.

[0040] In this embodiment, it should be specifically noted that: the vacuum pump 1401 is located on the lower side of the liquid suction box 10. The main function of the liquid suction mechanism 14 is to suck the dyeing liquid on the surface of the nylon thread. After the nylon thread passes through the dyeing tank 7, excess dye liquid often adheres to its surface. These excess dyes will not only cause waste of dyes, but may also affect the quality and effect of subsequent processes. Therefore, the liquid suction mechanism 14 in the liquid suction box 10 sucks these excess dye liquids through its flat mouth suction nozzles 1402, and then discharges them through the hose 1403 and returns to the dyeing tank 7 through the return port 701 for recycling, thereby reducing the waste of dyes and improving the efficiency and effect of dyeing. This design helps to ensure that the surface of the dyed nylon thread is clean and free of excess dyes, providing better conditions for subsequent processes such as drying.

[0041] Referring to Figures 2-3 , a plurality of third wire rollers 1001 are arranged in the liquid suction box 10, and a plurality of fourth wire rollers 1101 and infrared heaters 1102 are arranged in the drying box 11. The nylon thread moves along the paths of the third wire roller 1001 and the fourth wire roller 1101 and is quickly dried by the infrared heaters 1102.

[0042] In this embodiment, it should be specifically noted that the third wire roller 1001 and the fourth wire roller 1101 are used to guide the movement direction of the nylon wire to ensure the stability of the wire during the drying process. Moreover, when the third wire roller 1001 and the fourth wire roller 1101 are installed, the nylon wire is preferably moved in a right-angle structure to reduce the bending angle of the nylon wire. By utilizing the limited production line space, the entire production line can be made more compact and efficient. Optimizing the movement path can reduce the transition time and tension change between various links of the nylon wire, thereby improving the production efficiency of the entire production line.

[0043] Refer to Figure 4 , the tension self-adjusting mechanism 17 includes a fourth slide rail 1701, a sixth wire roller 1702, and two return springs 1703. The fourth slide rail 1701 is provided with two ends respectively fixedly connected to the two side edges of the production line frame 1. The sixth wire roller 1702 is slidably connected between the two fourth slide rails 1701. The two return springs 1703 are respectively fixedly connected between the lower inner wall of the corresponding fourth slide rail 1701 and the two ends of the sixth wire roller 1702.

[0044] In this embodiment, it should be specifically noted that the tension self-adjusting mechanism 17 is used to passively adjust the tension of the nylon wire. The return spring 1703 serves as a support element and has a certain elasticity. This elastic support can absorb the impact and vibration generated by the nylon wire during movement to a certain extent, thereby stabilizing the tension to ensure the continuous and stable operation of the entire production line.

[0045] Refer to Figure 4 , the traction mechanism 3 includes two first slide rails 301, two first wire rollers 305, a first motor 306, and a synchronous belt 308. The two first slide rails 301 are respectively fixedly connected to the two side edges of the production line frame 1. The lower inner walls of the two first slide rails 301 are both fixedly connected with first moving sliders 302. The two first slide rails 301 are both slidably connected with static sliders 303. The first wire rollers 305 are rotatably connected between the two first moving sliders 302 and the static sliders 303. The tops of the two first slide rails 301 are both fixedly connected with electric push rods 304. The extending ends of the two electric push rods 304 are respectively fixedly connected to the corresponding static sliders 303. The first motor 306 is fixedly connected to the inner wall of the production line frame 1. The output end of the first motor 306 and one end of the first wire roller 305 are both fixedly connected with transmission wheels 307. The synchronous belt 308 is drivingly connected between the two transmission wheels 307.

[0046] In this embodiment, it should be specifically noted that: the main function of the traction mechanism 3 is to traction the nylon thread and guide it smoothly into the dyeing tank 7. During operation, the output end of the first motor 306 drives the driving wheel 307 to rotate. Under the synchronous action of the driving wheel 307 and the synchronous belt 308, the first wire guide roller 305 located on the lower side is driven to rotate. The electric push rod 304 is used to adjust the height of the first wire guide roller 305 located on the upper side, so as to control the distance between the two first wire guide rollers 305, so that after the nylon thread comes out of the wire guide plate 2, an appropriate traction force is applied to the nylon thread to ensure that the wire can move forward smoothly along the predetermined path and avoid deviating from the predetermined trajectory; the traction mechanism 3 is also responsible for ensuring the smoothness of the nylon thread during transmission, which includes controlling key parameters such as the transmission speed and tension of the wire, so as to prevent problems such as wire slack, breakage or entanglement caused by too fast or too slow speed, too large or too small tension. Through precise regulation and stable performance, the traction mechanism 3 provides a reliable guarantee for the subsequent dyeing process.

[0047] Referring to Figure 4 , the monitoring mechanism includes a mounting plate 12 and a number of industrial cameras 13. The mounting plate 12 is fixedly connected to the upper side of the production line frame 1 and is close to the end of the production line frame 1. A number of industrial cameras 13 are all fixedly connected to the upper side of the mounting plate 12.

[0048] In this embodiment, it should be specifically noted that: during the production process, the industrial camera 13 can continuously monitor the nylon thread, timely detect and feedback potential quality problems. The ability of real-time monitoring helps the production line staff to quickly adjust the process parameters, prevent the generation of defective products, improve production efficiency and product quality, and can also record the detected image information and quality data for subsequent analysis and improvement. Through in-depth analysis of these data, the production line can continuously optimize the process parameters, improve the dyeing uniformity and production efficiency, and at the same time reduce production costs and energy consumption.

[0049] Referring to Figure 4 , two wire guide plates 2 are symmetrically arranged, which are respectively located at the starting end and the end of the production line frame 1. A number of wire holes 201 are opened on the side of the wire guide plate 2, and each nylon thread moves through the corresponding wire hole 201.

[0050] In this embodiment, it should be specifically noted that: there are a plurality of wire holes 201 provided on the wire board 2, and the nylon wire enters the traction mechanism 3 through the wire holes 201. The diameter of the wire holes 201 is slightly larger than the diameter of the nylon wire to ensure that the nylon wire will not be subject to excessive frictional resistance when passing through. The main function of the wire board 2 is to guide the nylon wire and reduce the frictional force, ensuring that the path of the nylon wire from the wire pay-off device to the traction mechanism 3 is smooth, avoiding wire offset or entanglement. The inner wall of the wire holes 201 is smooth to reduce the friction of the nylon wire when passing through and prevent wire wear. The height of the wire board 2 can be adjusted according to the specifications of the nylon wire and the process requirements to ensure that the nylon wire maintains an appropriate tension when entering the traction mechanism 3. The angle of the wire board 2 can be finely adjusted to ensure that the nylon wire will not generate excessive bending or friction when passing through the wire holes 201.

[0051] Refer to Figure 4 , a temperature sensor 15 and a humidity sensor 16 are fixedly connected to the side of the dyeing tank 7, and both the temperature sensor 15 and the humidity sensor 16 are electrically connected to the controller 6.

[0052] In this embodiment, it should be specifically noted that: the main function of the temperature sensor 15 is to monitor the temperature inside the dyeing tank 7 in real time. During the dyeing process of the nylon wire, temperature is a crucial factor, which directly affects the dissolution, diffusion and penetration rates of the dye, and thus affects the dyeing effect. Through the precise monitoring of the temperature sensor 15, it can be ensured that the temperature inside the dyeing tank always remains within the optimal range, thereby improving the uniformity and stability of dyeing; the humidity sensor 16 can monitor the dye concentration in the dyeing tank in real time. Through real-time monitoring, concentration deviations can be detected in a timely manner, and corresponding adjustment measures can be taken to ensure that the dyeing process is carried out under the optimal concentration conditions. The temperature sensor 15 and the humidity sensor 16 are electrically connected to the controller 6 to achieve automated monitoring and control.

[0053] The working principle of the present invention:

[0054] The main problems solved by this embodiment are: using the lifting mechanism 8 and the reciprocating mechanism 9 to assist the nylon wire to lift and lower in the dyeing tank 7 in reverse synchronously, which is beneficial to contacting dyes at different depths without affecting the tension, improving the uniformity and depth of dyeing, and avoiding problems such as wire slack or breakage caused by uneven tension; using the liquid suction box 10 and the drying box 11 in combination is beneficial to sucking off the excess dye liquid attached to the surface of the nylon wire, reducing dye waste, improving the dyeing uniformity, production efficiency and production quality, while reducing production costs and energy consumption, meeting the requirements of environmental protection and energy conservation.

[0055] The specific steps are as follows:

[0056] S1. Equipment inspection: Check that key equipment such as the traction mechanism 3, heating roller 4, controller 6, and dyeing tank 7 are in good working condition. Check whether all connecting pipelines are unobstructed to avoid dye leakage or blockage;

[0057] S2. Pretreatment: Start the wire supply device and continuously transport the high-strength nylon wire from the raw material warehouse to the production line. During the pretreatment stage, perform necessary cleaning and drying treatments on the nylon wire to remove surface oil stains and impurities, preparing for the subsequent dyeing process;

[0058] S3. Wire winding: Wind the pretreated nylon wire around the movement path on the production line rack 1, and finally wind it on the winding device, and control the traction mechanism 3 and the winding device to synchronously traction the nylon wire to move;

[0059] S4. Dyeing: When the nylon wire passes through the dyeing tank 7, drive the disc 906 to rotate through the output end of the second motor 905. The disc 906 drives the eccentric block 907 to rotate eccentrically. Since the eccentric block 907 is located in the second chute 904, it drives the second straight plate 903 to move linearly back and forth, and finally drives the rack 902 to move linearly back and forth. Under the action of meshing, the rack 902 drives the spur gear 908 to rotate reciprocally, realizing the reciprocating swing of the extension shaft 804, assisting the two-way reciprocating lifting movement of the second guide roller 803 in the dyeing tank 7, ensuring that the nylon wire continuously moves up and down during the dyeing process, thereby improving the uniformity of dyeing;

[0060] S5. Absorbing dye: When the nylon wire passes through the liquid suction box 10, the excess dye liquid attached to the surface of the nylon wire is sucked out by the liquid suction mechanism 14, and then discharged through the hose 1403 and returned to the dyeing tank 7 through the return port 701 for recycling, thereby reducing dye waste and improving dyeing efficiency;

[0061] S6. Drying: When the nylon wire passes through the drying box 11, heat the nylon wire through the infrared heater 1102 to remove the residual liquid on the wire surface and ensure that the dyed nylon wire is dry;

[0062] S7. Monitoring: When the nylon wire passes through the industrial camera 13, the dyeing state of the nylon is monitored in real time through the industrial camera 13, potential quality problems are discovered and fed back in a timely manner, and the temperature and concentration data corresponding to the temperature sensor 15 and the humidity sensor 16 are sent to the controller 6 to build a data model for nylon wire dyeing for subsequent analysis and improvement. Through in-depth analysis of these data, the production line can continuously optimize process parameters;

[0063] S8. Wire winding: Perform winding treatment through the winding device. During the winding process, it is necessary to ensure that the nylon wire is arranged neatly without overlapping or crossing phenomena, so as to facilitate subsequent processing and use.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A continuous dyeing production line for high-strength nylon threads, comprising a production line frame (1), characterized in that: It also includes a wire guide plate (2), a traction mechanism (3), a heating roller (4), a tension self-adjusting mechanism (17), a dyeing tank (7), a liquid suction box (10), a drying box (11), a monitoring mechanism and several pairs of wire guide rollers (5) arranged successively along the movement path of the nylon thread. A controller (6) is arranged on the side of the production line frame (1). A fifth wire guide roller (702) is fixedly connected between the inner walls of the dyeing tank (7). A stirrer (703) and a lifting mechanism (8) are arranged in the dyeing tank (7). A reciprocating mechanism (9) is arranged on the side of the production line frame (1). The reciprocating mechanism (9) controls the double-direction reciprocating lifting movement of the lifting mechanism (8), and then drives the nylon thread to rise and fall simultaneously in the dyeing tank (7) to maintain stable tension. A liquid suction mechanism (14) is arranged in the liquid suction box (10). The liquid suction mechanism (14) sucks the dyeing liquid on the surface of the nylon thread to reduce dye waste. The drying box (11) is used to quickly dry the nylon thread to ensure that the dyed wire is dry; The lifting mechanism (8) includes four second slide rails (801), two second wire guide rollers (803), a lengthening shaft (804) and two first straight plates (805). A second moving slider (802) is slidably connected in each second slide rail (801). Each second wire guide roller (803) is rotatably connected between two symmetric second moving sliders (802). The lengthening shaft (804) is rotatably connected between the inner walls of the dyeing tank (7). The two first straight plates (805) are fixedly connected to the circumferential surface of the lengthening shaft (804). Chutes (806) are opened at the ends of the first straight plates (805) close to the second wire guide rollers (803). The ends of each second wire guide roller (803) are respectively slidably connected in the corresponding chutes (806); The reciprocating mechanism (9) includes a third slide rail (901), a rack (902), a second straight plate (903), a second motor (905), a disc (906), an eccentric block (907) and a spur gear (908). The third slide rail (901) is fixedly connected to the side of the production line frame (1). The rack (902) and the second straight plate (903) are both slidably connected to the surface of the third slide rail (901). The rack (902) is fixedly connected to the second straight plate (903). A second chute (904) is opened on the side of the second straight plate (903). The second motor (905) is fixedly connected to the inner wall of the production line frame (1). The disc (906) is fixedly connected to the output end of the second motor (905). The eccentric block (907) is fixedly connected to the side of the disc (906). The eccentric block (907) is slidably connected in the second chute (904). The spur gear (908) is fixedly connected to one end of the lengthening shaft (804) passing through the dyeing tank (7). The spur gear (908) meshes with the rack (902).

2. The continuous dyeing production line for high-strength nylon thread according to claim 1, wherein: The liquid suction mechanism (14) includes a vacuum pump (1401), a number of flat mouth suction nozzles (1402) and a hose (1403). The vacuum pump (1401) is fixedly connected to the bottom of the liquid suction tank (10). A number of the flat mouth suction nozzles (1402) are all fixedly connected to the intake end of the vacuum pump (1401). The end of the flat mouth suction nozzle (1402) is located inside the liquid suction tank (10). The hose (1403) is fixedly connected to the exhaust end of the vacuum pump (1401). A return port (701) is arranged on the side of the dyeing tank (7). The hose (1403) is fixedly connected to the return port (701).

3. A continuous dyeing production line for high-strength nylon threads according to claim 1, characterized in that: A number of third wire rollers (1001) are arranged inside the liquid suction tank (10). A number of fourth wire rollers (1101) and an infrared heater (1102) are arranged inside the drying box (11). The nylon thread moves along the path of the third wire roller (1001) and the fourth wire roller (1101) and is quickly dried by the infrared heater (1102).

4. The continuous dyeing production line for high-strength nylon thread according to claim 2, characterized in that: The tension self-adjusting mechanism (17) includes a fourth slide rail (1701), a sixth wire roller (1702) and two return springs (1703). The fourth slide rail (1701) is provided with two which are respectively fixedly connected to the two side edges of the production line frame (1). The sixth wire roller (1702) is slidably connected between the two fourth slide rails (1701). The two return springs (1703) are respectively fixedly connected between the lower inner wall of the corresponding fourth slide rail (1701) and both ends of the sixth wire roller (1702).

5. The continuous dyeing production line for high-strength nylon thread according to claim 3, characterized in that: The traction mechanism (3) includes two first slide rails (301), two first wire rollers (305), a first motor (306) and a synchronous belt (308). The two first slide rails (301) are respectively fixedly connected to the two side edges of the production line frame (1). The lower inner walls of the two first slide rails (301) are both fixedly connected with a first moving slider (302). A static slider (303) is slidably connected inside each of the two first slide rails (301). A first wire roller (305) is rotatably connected between the two first moving sliders (302) and the static slider (303). Electric push rods (304) are fixedly connected to the tops of the two first slide rails (301). The extending ends of the two electric push rods (304) are respectively fixedly connected to the corresponding static sliders (303). The first motor (306) is fixedly connected to the inner wall of the production line frame (1). A transmission wheel (307) is fixedly connected to the output end of the first motor (306) and one end of the first wire roller (305). The synchronous belt (308) is drivingly connected between the two transmission wheels (307).

6. The continuous dyeing production line for high-strength nylon thread according to claim 4, wherein: The monitoring mechanism includes a mounting plate (12) and a number of industrial cameras (13). The mounting plate (12) is fixedly connected to the upper side of the production line frame (1) and is close to the end of the production line frame (1). A number of the industrial cameras (13) are all fixedly connected to the upper side of the mounting plate (12).

7. A continuous dyeing production line for high-strength nylon thread according to claim 5, characterized in that: There are two symmetrically arranged wire plates (2), which are respectively located at the starting end and the ending end of the production line rack (1). A plurality of wire holes (201) are formed in the side part of the wire plate (2), and each nylon thread moves through the corresponding wire hole (201).

8. A continuous dyeing production line for high-strength nylon threads according to claim 6, characterized in that: A temperature sensor (15) and a humidity sensor (16) are fixedly connected to the side part of the dyeing tank (7), and both the temperature sensor (15) and the humidity sensor (16) are electrically connected to the controller (6).

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