Dyeing machine for textile fabric

Abstract

The invention relates to the technical field of textile fabric dyeing machines, in particular to a dyeing machine for textile fabrics. Comprising a dip dyeing pool, an unwinding table is arranged on one side of the dip dyeing pool, two sets of unwinding frames are fixedly connected to the unwinding table, and an unwinding roller used for installing a textile fabric roll is rotationally connected between the two sets of unwinding frames; the lifting type auxiliary dip dyeing mechanism is adopted, the whole mechanism is driven by the electric air cylinder to ascend and descend, so that the textile fabric can be mounted or dismounted above the dyeing pool without emptying dye liquor, the damage to the stability of dye liquor components caused by repeated liquor drainage is avoided, the dyeing consistency among batches is ensured, and the dyeing efficiency is improved. The multiple groups of tensioning parts drive worm gears and worms to be synchronously adjusted through the adjusting motor, so that the fabric can automatically form a controllable reciprocating folding state without manually guiding the textile fabric to penetrate through multiple groups of guide rollers, the length of the fabric subjected to single dip dyeing is effectively increased, the utilization rate of dye in the dip dyeing pool is increased, and the dyeing efficiency is effectively improved.

Description

Technical Field

[0001] This invention belongs to the technical field of textile fabric dyeing machines, and specifically relates to a dyeing machine for textile fabrics. Background Technology

[0002] Dyeing machines are specialized equipment used in industries such as textiles, leather, and plastics to dye materials. By controlling parameters such as temperature, pressure, and time, dyes are evenly penetrated into fibers or substrates to achieve the desired coloring effect. They come in various types to suit different materials and processing requirements.

[0003] Immersion dyeing machines are a common type of dyeing machine, often used in the dyeing process of textiles and clothing. The basic principle is to immerse the textile fabric in a liquid containing dye, so that the textile fabric and dye molecules interact to achieve the purpose of dyeing. In the actual immersion dyeing process, in order to achieve continuous dyeing production, an unwinding roller is usually set at the beginning of the immersion tank and a winding roller is set at the end of the immersion tank. The continuous immersion dyeing of the rolled fabric is achieved by coordinating the winding and unwinding operations.

[0004] Because textile fabrics need to pass through multiple sets of guide rollers sequentially during dyeing to maintain tension in the dyeing tank and achieve uniform dyeing, traditional dyeing machines require guiding and tensioning the textile fabrics in the dyeing tank. Therefore, before dyeing each new roll of textile fabric, the dye in the dyeing tank needs to be emptied to complete the fabric installation. This operation is complex, and repeated emptying can easily lead to dye loss and contamination, affecting the dyeing effect and greatly increasing the workload of the staff. A search revealed that in the prior art, patent document CN222349308U, published on January 14, 2025, discloses a textile fabric dyeing device. The device includes a housing with a feeding roller and a pressure roller rotatably mounted inside for conveying the textile fabric. The feeding roller is higher than the pressure roller. A tensioning mechanism is also provided inside the housing, comprising a first guide roller and a second guide roller rotatably mounted. Slide rails are provided on both sides of the housing, with sliders slidably mounted inside each rail. The second guide roller is rotatably mounted between the sliders via bearings. A first fixed roller is rotatably mounted inside the housing via bearings. A telescopic rod is fixedly connected to the top of the housing. This invention, by incorporating the first fixed roller, telescopic rod, compression spring, and second fixed roller, allows the fabric to enter the housing for dyeing via the feeding roller and pressure roller. Afterward, the fabric passes through the first and second guide rollers until it reaches the space between the first and second fixed rollers. At this point, the compression spring inside the telescopic rod at the top of the housing pushes the telescopic rod and the fixed frame downward.

[0005] However, the device still has the following drawbacks: Although it can uniformly dye and dry textile fabrics, the device is equipped with multiple sets of guide rollers and fixed rollers in the dyeing tank. When changing the dyeing of each roll of textile fabric, the dye in the dyeing tank must be emptied in advance to complete the guiding installation of the textile fabric. The operation is complicated and repeated emptying can easily lead to dye loss and pollution, affecting the dyeing effect and greatly increasing the workload of the staff. Summary of the Invention

[0006] To address the above problems, the present invention provides a dyeing machine for textile fabrics, including a dyeing tank, an unwinding platform provided on one side of the dyeing tank, two sets of unwinding frames fixedly connected to the unwinding platform, and an unwinding roller for mounting textile fabric rolls rotatably connected between the two sets of unwinding frames. On the other side of the dyeing tank, there is a spraying mechanism for fixing color and removing odor from the dyed textile fabric. On one side of the spraying mechanism, there is a winding box, and the inner wall of the winding box is rotatably connected to a winding roller for winding and conveying the textile fabric. A gantry frame is set at the center of the dyeing tank, and two sets of electric cylinders are installed at the top of the gantry frame. The output ends of the two sets of electric cylinders are connected to an auxiliary dyeing mechanism. The auxiliary dyeing mechanism includes a first vertical plate and a second vertical plate, and two sets of connecting shafts are symmetrically arranged between the first vertical plate and the second vertical plate. A transmission box is fixedly connected to the outer side wall of the first upright plate, and several sets of tensioning parts for automatically tensioning and folding textile fabrics are rotatably connected to the inner side wall of the first upright plate.

[0007] Furthermore, the inner sidewall of the second upright plate is provided with several sets of annular grooves, and the outer sidewall of the second upright plate is fixedly connected with a linkage box. The top of the transmission box and the linkage box are respectively connected to the output end of two sets of electric cylinders. The outer sidewalls of the first upright plate and the second upright plate are each fixedly connected with two sets of sliders. Each of the four sets of sliders is provided with a through hole. The dyeing tank is fixedly connected with four sets of limiting shafts, and the four sets of through holes are respectively movably fitted with the four sets of limiting shafts.

[0008] Furthermore, an air guide pipe is installed inside the transmission box, and several sets of rotating joints are connected to the air guide pipe. Each set of rotating joints passes through the first vertical plate and is interconnected with a corresponding set of tensioning parts. Each set of rotating joints is fitted with an annular worm gear. A worm is rotatably connected to the inner wall of the transmission box, and the worm is meshed with several sets of annular worm gears. An adjusting motor is installed on the outer wall of the transmission box, and the adjusting motor is drivenly connected to one end of the worm.

[0009] Furthermore, the tensioning part includes a strip-shaped block, which is a hollow structure. The interior of the strip-shaped block is connected to one end of the rotary joint. Two sets of tensioning rollers are symmetrically arranged on the strip-shaped block. Both sets of tensioning rollers are hollow structures, and the interiors of both sets of tensioning rollers are connected to the interior of the strip-shaped block. The other end of each set of tensioning rollers is fixedly connected to a snap-fit ​​block, which is movably fitted with a corresponding set of annular grooves. Several sets of strip-shaped protrusions are laid on the tensioning roller. The several sets of strip-shaped protrusions are arranged in a circular array with the central axis of the tensioning roller as the center. The several sets of strip-shaped protrusions are movably fitted with the textile fabric. Several sets of air jets are arranged between each pair of adjacent sets of strip-shaped protrusions, and the several sets of air jets are connected to the interior of the tensioning roller.

[0010] Furthermore, the spraying mechanism includes a spraying box and a storage tank. The storage tank contains a mixed liquid for deodorizing dyed textile fabrics. A liquid pump is installed on the storage tank. The input end of the liquid pump extends into the liquid in the storage tank, and the output end of the liquid pump extends into the interior of the spraying box.

[0011] Furthermore, the spray box is provided with a feed trough and a discharge trough. The feed trough is located on the side near the dyeing tank, and the discharge trough is connected to the interior of the winding box. The spray box is provided with two sets of limiting rollers, which are respectively located on one side of the feed trough and the discharge trough. Spray pipes are fixedly connected to the inner walls of both sides of the spray box. Both sets of spray pipes are connected to the liquid outlet of the liquid pump. Each set of spray pipes is provided with several sets of spray nozzles, and the spray nozzles are all facing the surface of the textile fabric.

[0012] Furthermore, an air guiding mechanism is provided on the outside of the dyeing tank. The air guiding mechanism includes an air purifier. The air outlet of the air purifier is connected to an air pump. The air outlet of the air pump is connected to a heater. An air outlet pipe is connected to the heater. The other end of the air outlet pipe is connected to the auxiliary dyeing mechanism.

[0013] Furthermore, two sets of limiting plates are fixedly connected to the dyeing tank, and two sets of sorting rollers are rotatably connected between the two sets of limiting plates. The two sets of sorting rollers are movably fitted together, and an extrusion part is provided on the side of the dyeing tank near the spraying mechanism.

[0014] Furthermore, the extrusion section includes two sets of fixed frames, both of which are mounted on the dyeing tank. A guide roller and an extrusion roller are arranged between the two sets of fixed frames. Both ends of the extrusion roller are fixedly connected to a rotating shaft. The two sets of rotating shafts are rotatably connected to the two sets of fixed frames respectively. One end of one set of rotating shafts passes through the fixed frame and is fixedly connected to an adjustment handle. A torsion spring is arranged between the extrusion roller and the two sets of fixed frames. The two sets of torsion springs are respectively sleeved on the two sets of rotating shafts. A scraper is fixedly connected to the extrusion roller, and one end of the scraper is attached to the guide roller.

[0015] Furthermore, an unwinding motor is installed on one of the unwinding frames, and the unwinding motor is drivenly connected to one end of the unwinding roller. A winding motor is installed on the outer wall of the winding box, and the output end of the winding motor is drivenly connected to one end of the winding roller.

[0016] The beneficial effects of this invention are: 1. By adopting a liftable auxiliary dyeing mechanism, the entire mechanism is raised and lowered by an electric cylinder, allowing the installation or removal of textile fabrics to be completed above the dyeing tank without draining the dye liquor. This avoids the instability of the dye liquor components caused by repeated drainage, ensuring dyeing consistency between batches. In addition, multiple tensioning parts are synchronously adjusted by adjusting the motor-driven worm gear, so that the fabric can automatically form a controllable reciprocating folding state without manual guidance of the textile fabric through multiple sets of guide rollers. This effectively increases the length of fabric dyed in a single immersion, thereby improving the utilization rate of dye in the dyeing tank and thus effectively improving dyeing efficiency.

[0017] 2. After air purification by an air purifier, the air is pumped into the heater for heating. The heated pure air is then introduced into the auxiliary dyeing mechanism through the air outlet. The heated pure air enters the tension roller through the air outlet and is then sprayed into the dye through several sets of air nozzles, generating convection and bubbles, thereby effectively improving the dyeing effect. Several sets of strip-shaped protrusions are set to support the fabric, effectively preventing the textile fabric from blocking the air nozzles. By blowing the heated pure air into the liquid dye, the liquid dye is heated and bubbles are generated. The increased dye temperature improves the dyeing efficiency. The injection of air effectively breaks up the dye molecule agglomeration, making the dye particle size distribution more uniform. The micro-jet generated by the bursting of bubbles enhances the dye penetration to the fiber surface. At the same time, the air flow promotes dye convection, making the dye more uniform and reducing local temperature differences, thereby effectively avoiding dyeing unevenness.

[0018] 3. By feeding the textile fabric into the spray box through the feed trough, the textile fabric is limited by two sets of limiting rollers, and the spray nozzles on two sets of spray pipes spray both sides of the textile fabric. This not only fixes the color of the dyed textile fabric, but also effectively removes the odor generated after dyeing, and effectively reduces the environmental pollution caused by exhaust gas emissions.

[0019] 4. Two sets of electric cylinders drive the auxiliary dyeing mechanism to move upwards above the dyeing tank, causing the textile fabric to separate from the dye in the tank. The unwinding motor and the winding motor rotate in opposite directions synchronously, thereby achieving reverse conveying of the textile fabric. At this time, heated pure air is sprayed onto the surface of the textile fabric through several sets of air nozzles, allowing the dyed textile fabric to be air-dried during the reverse conveying process, thus effectively reducing the energy consumption of subsequent drying. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the main structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the main body structure from another perspective according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the main structure of a textile fabric in an installation state according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the auxiliary dyeing mechanism according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the auxiliary dyeing mechanism from another angle according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the tensioning section structure according to an embodiment of the present invention is shown; Figure 7 A cross-sectional view of the main structure of a textile fabric in a dyeing state according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the extrusion section structure according to an embodiment of the present invention is shown.

[0022] In the diagram: 100, dyeing tank; 110, limiting shaft; 120, gantry frame; 130, electric cylinder; 200, unwinding table; 210, unwinding frame; 220, unwinding roller; 230, unwinding motor; 300, limiting plate; 400, finishing roller; 500, extrusion section; 510, fixing frame; 520, guide roller; 530, extrusion roller; 540, rotating shaft; 550, torsion spring; 560, adjusting handle; 570, scraper; 600, spraying mechanism; 610, spraying box; 620, storage tank; 630, limiting roller; 640, spray pipe; 650, spray nozzle; 660, feed chute; 670, discharge chute; 700, take-up box; 710 720. Take-up roller; 800. Take-up motor; 810. Auxiliary dyeing mechanism; 821. First vertical plate; 822. Second vertical plate; 823. Annular groove; 830. Connecting shaft; 840. Linkage box; 850. Transmission box; 851. Air guide pipe; 852. Rotary joint; 853. Annular worm gear; 854. Worm; 855. Adjusting motor; 860. Slider; 861. Through hole; 870. Tensioning part; 871. Strip block; 872. Tensioning roller; 873. Clamping block; 874. Strip protrusion; 875. Air nozzle; 900. Air guide mechanism; 910. Air purifier; 920. Air pump; 930. Heater; 940. Air outlet pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a dyeing machine for textile fabrics, including an immersion dyeing tank 100; for example, such as... Figures 1-3 As shown.

[0025] A unwinding platform 200 is provided on one side of the dyeing tank 100. Two sets of unwinding frames 210 are fixedly connected to the unwinding platform 200. An unwinding roller 220 is rotatably connected between the two sets of unwinding frames 210. The unwinding roller 220 is detachable and a roll of textile fabric is sleeved on the unwinding roller 220. An unwinding motor 230 is installed on one set of unwinding frames 210. The unwinding motor 230 is drivenly connected to one end of the unwinding roller 220. Two sets of limiting plates 300 are fixedly connected to the dyeing tank 100. Two sets of finishing rollers 400 are rotatably connected between the two sets of limiting plates 300. The two sets of finishing rollers 400 are movably fitted together. A spraying mechanism 600 is provided on the other side of the dyeing tank 100. A squeezing part 500 is provided on the side of the dyeing tank 100 near the spraying mechanism 600. The spraying mechanism 600 includes a spray box 610 and a storage tank 620. The storage tank 620 stores a mixed liquid for deodorizing textile fabrics after dyeing. A liquid pump is provided on the storage tank 620. The input end of the liquid pump extends into the liquid in the storage tank 620, and the output end of the liquid pump extends into the interior of the spray box 610. A take-up box 700 is provided on one side of the spray box 610. A take-up roller 710 is rotatably connected to the inner wall of the take-up box 700. A take-up motor 720 is installed on the outer wall of the take-up box 700. The output end of the take-up motor 720 is connected to one end of the take-up roller 710. Four sets of limiting shafts 110 are fixedly connected inside the dyeing tank 100. A gantry frame 120 is set at the center of the dyeing tank 100. Two sets of electric cylinders 130 are installed at the top of the gantry frame 120. The output ends of the two sets of electric cylinders 130 are connected to an auxiliary dyeing mechanism 800. The auxiliary dyeing mechanism 800 is movably engaged with the four sets of limiting shafts 110. Specifically, the textile fabric roll to be dyed is placed on the unwinding roller 220, and the unwinding roller 220 is installed between two sets of unwinding frames 210. One end of the textile fabric is pulled through between two sets of finishing rollers 400, which limits the textile fabric and makes it flatter. The textile fabric is then passed through the auxiliary dyeing mechanism 800, and then through the extrusion section 500 and the spray box 610 before entering the take-up box 700 and being fixed to the take-up roller 710. The textile fabric can be synchronously transported by the synchronous opening of the unwinding motor 230 and the take-up motor 720. The auxiliary dyeing mechanism 800 drives the textile fabric downward to enter the liquid dye in the dyeing pool 100 for dyeing.

[0026] An air guiding mechanism 900 is provided on the outside of the dyeing tank 100. The air guiding mechanism 900 includes an air purifier 910. The air outlet of the air purifier 910 is connected to an air pump 920. The air outlet of the air pump 920 is connected to a heater 930. An air outlet pipe 940 is connected to the heater 930. The other end of the air outlet pipe 940 is connected to the auxiliary dyeing mechanism 800. Specifically, the air is purified by the air purifier 910 and then fed into the heater 930 by the air pump 920 for heating. The heated pure air is then introduced into the auxiliary dyeing mechanism 800 through the air outlet 940. The auxiliary dyeing mechanism 800 blows the heated pure air into the liquid dye, causing the liquid dye to heat up and generate bubbles. The increased dyeing temperature improves dyeing efficiency, and the injection of air effectively breaks up dye molecule agglomeration, making the dye particle size distribution more uniform. The micro-jet generated by the bursting of bubbles enhances the penetration of dye into the fiber surface. At the same time, the air flow promotes dye convection, making the dye more uniform and reducing local temperature differences, thereby effectively avoiding dyeing color spots.

[0027] For example, such as Figures 4-6 As shown.

[0028] The auxiliary dyeing mechanism 800 includes a first vertical plate 810 and a second vertical plate 820. Two sets of connecting shafts 830 are symmetrically arranged between the first vertical plate 810 and the second vertical plate 820. Several sets of annular grooves 821 are opened on the inner side wall of the second vertical plate 820. A linkage box 840 is fixedly connected to the outer side wall of the second vertical plate 820. A transmission box 850 is fixedly connected to the outer side wall of the first vertical plate 810. The top ends of the transmission box 850 and the linkage box 840 are respectively connected to the output ends of two sets of electric cylinders 130. Two sets of sliders 860 are fixedly connected to the outer side walls of the first vertical plate 810 and the second vertical plate 820. Through holes 861 are opened on the four sets of sliders 860. The four sets of through holes 861 are respectively movably fitted with four sets of limiting shafts 110. The inner wall of the first upright plate 810 is rotatably connected to several sets of tensioning parts 870. The transmission box 850 is equipped with an air guide pipe 851, which is connected to the air outlet pipe 940. Several sets of rotating joints 852 are connected to the air guide pipe 851. Each set of rotating joints 852 passes through the first upright plate 810 and is connected to a corresponding set of tensioning parts 870. Each set of rotating joints 852 is fitted with an annular worm gear 853. The inner wall of the transmission box 850 is rotatably connected to a worm 854, which is meshed with several sets of annular worm gears 853. An adjusting motor 855 is installed on the outer wall of the transmission box 850, and the adjusting motor 855 is connected to one end of the worm 854. The tensioning part 870 includes a strip-shaped block 871, which is a hollow structure. The interior of the strip-shaped block 871 is interconnected with one end of the rotating joint 852. Two sets of tensioning rollers 872 are symmetrically arranged on the strip-shaped block 871. Both sets of tensioning rollers 872 are hollow structures, and their interiors are interconnected with the interior of the strip-shaped block 871. A locking block 873 is fixedly connected to the other end of each set of tensioning rollers 872. The snap-fit ​​block 873 is movably fitted with a corresponding set of annular grooves 821. The tension roller 872 is covered with several sets of strip-shaped protrusions 874. The several sets of strip-shaped protrusions 874 are arranged in a ring array with the central axis of the tension roller 872 as the center. The several sets of strip-shaped protrusions 874 are movably fitted with the textile fabric. Several sets of air nozzles 875 are provided between each two adjacent sets of strip-shaped protrusions 874. The several sets of air nozzles 875 are all interconnected with the interior of the tension roller 872. Specifically, in the initial state, the positions of several sets of tensioning sections 870 are as follows: Figure 4 In the state shown, one end of the textile fabric is passed sequentially through the bottom of a set of connecting shafts 830, through the middle of several sets of tensioning parts 870, and then through the bottom of another set of connecting shafts 830. By adjusting the motor 855 to drive the worm 854 to rotate, several sets of annular worm gears 853 rotate synchronously, thereby causing the rotary joint 852 to drive the corresponding set of tensioning parts 870 to rotate, thereby causing several sets of tensioning rollers 872 to rotate and tension the textile fabric, and causing the textile fabric to form a reciprocating folding state, thereby effectively increasing the length of the fabric dyed in a single immersion, thereby increasing the utilization rate of dye in the dyeing tank 100, and thus effectively improving the dyeing efficiency. Furthermore, the auxiliary dyeing mechanism 800 is moved upward to the top of the dyeing tank 100 by two sets of electric cylinders 130. At this time, the textile fabric is installed and pulled. After the installation, pulling and tensioning of the textile fabric are completed, the auxiliary dyeing mechanism 800 is moved downward to the dye in the dyeing tank 100 by two sets of electric cylinders 130 for dyeing. Therefore, the fabric roll changing operation can be carried out without frequently sucking the dye in the dyeing tank 100, which greatly reduces the workload and improves the dyeing efficiency. Furthermore, by allowing heated pure air to enter the interior of the tension roller 872 through the air outlet 940, and then spraying it into the dye through several sets of air nozzles 875 to generate convection and bubbles, the dyeing effect is effectively improved. In addition, by setting several sets of strip-shaped protrusions 874 to support the fabric, the textile fabric is effectively prevented from blocking the air nozzles 875. Furthermore, after the dyeing and winding of a roll of textile fabric is completed, the auxiliary dyeing mechanism 800 is moved upward above the dyeing tank 100 by two sets of electric cylinders 130, so that the unwinding motor 230 and the winding motor 720 rotate synchronously in opposite directions, thereby realizing the reverse conveying of the textile fabric. At this time, heated pure air is sprayed onto the surface of the textile fabric through several sets of air nozzles 875, so that the dyed textile fabric can be air-dried during the reverse conveying process. After the dyeing and air-drying operations are completed, the textile fabric is wound onto the unwinding roller 220 for disassembly, and then the installation and dyeing operation of the next roll of textile fabric is carried out.

[0029] For example, such as Figure 7 As shown.

[0030] The spray box 610 is provided with a feed trough 660 and a discharge trough 670. The feed trough 660 is located on the side near the dyeing tank 100, and the discharge trough 670 is connected to the interior of the winding box 700. The spray box 610 is provided with two sets of limiting rollers 630, which are respectively located on one side of the feed trough 660 and the discharge trough 670. Spray pipes 640 are fixedly connected to the inner walls of both sides of the spray box 610. Both sets of spray pipes 640 are connected to the liquid outlet of the liquid pump. Several sets of spray nozzles 650 are provided on both sets of spray pipes 640, and the spray nozzles 650 face the surface of the textile fabric. Specifically, the textile fabric enters the spray box 610 through the feed trough 660. The textile fabric is limited by two sets of limiting rollers 630. The spray nozzles 650 on two sets of spray pipes 640 spray both sides of the textile fabric. While fixing the color of the dyed textile fabric, it effectively removes the odor generated after dyeing. The sprayed textile fabric is discharged into the winding box 700 through the discharge trough 670 and wound up by the winding roller 710.

[0031] For example, such as Figure 8 As shown.

[0032] The extrusion section 500 includes two sets of fixing frames 510, both sets of fixing frames 510 are mounted on the dyeing tank 100, and a guide roller 520 and an extrusion roller 530 are arranged between the two sets of fixing frames 510. Both ends of the extrusion roller 530 are fixedly connected to a rotating shaft 540, and the two sets of rotating shafts 540 are rotatably connected to the two sets of fixing frames 510 respectively. One end of one set of rotating shafts 540 passes through the fixing frame 510 and is fixedly connected to an adjusting handle 560. A torsion spring 550 is arranged between the extrusion roller 530 and the two sets of fixing frames 510, and the two sets of torsion springs 550 are respectively sleeved on the two sets of rotating shafts 540. A scraper 570 is fixedly connected to the extrusion roller 530, and one end of the scraper 570 is attached to the guide roller 520. Specifically, the tension of the torsion spring 550 causes the scraper 570 to adhere to the surface of the guide roller 520. By rotating the adjusting handle 560, the squeeze roller 530 drives the scraper 570 to rotate, causing the scraper 570 to separate from the guide roller 520. At this time, it is convenient to transport the textile fabric through the space between the guide roller 520 and the squeeze roller 530. After releasing the handle 560, the tension of the torsion spring 550 causes the scraper 570 to adhere to the surface of the textile fabric, so that the excess dye attached to the textile fabric is scraped off while the textile fabric is being transported, thereby avoiding waste of dye.

[0033] The working principle of the dyeing machine for textile fabrics proposed in this invention is as follows: The textile fabric roll to be dyed is placed on the unwinding roller 220, which is installed between two sets of unwinding frames 210. One end of the textile fabric is pulled through between two sets of finishing rollers 400, which limit the movement of the textile fabric and make it flatter. Two sets of electric cylinders 130 drive the auxiliary dyeing mechanism 800 to move upward above the dyeing tank 100. The textile fabric is then passed through the auxiliary dyeing mechanism 800. In the initial state, the positions of several sets of tensioning parts 870 are as follows: Figure 4 In the state shown, one end of the textile fabric is passed through the bottom of a set of connecting shafts 830, through the middle of several sets of tensioning parts 870, and then through the bottom of another set of connecting shafts 830. After passing through the extrusion part 500 and the spray box 610, it enters the winding box 700 and is fixed to the winding roller 710. The textile fabric can be synchronously conveyed by the synchronous opening of the unwinding motor 230 and the winding motor 720. The auxiliary dyeing mechanism 800 drives the textile fabric to move downward into the liquid dye in the dyeing pool 100 for dyeing.

[0034] By adjusting the motor 855 to drive the worm gear 854 to rotate, several sets of annular worm wheels 853 rotate synchronously, thereby causing the rotary joint 852 to drive the corresponding set of tensioning parts 870 to rotate, thereby causing several sets of tensioning rollers 872 to rotate and tension the textile fabric, and causing the textile fabric to form a reciprocating folding state, thereby effectively increasing the length of the fabric dyed in a single immersion, thereby improving the utilization rate of dye in the dyeing tank 100, and thus effectively improving the dyeing efficiency.

[0035] Air is purified by air purifier 910 and then fed into heater 930 via air pump 920 for heating. The heated pure air is then introduced into auxiliary dyeing mechanism 800 through air outlet pipe 940. The heated pure air enters the tension roller 872 through air outlet pipe 940 and is then sprayed into the dye through several sets of air jet nozzles 875, generating convection and bubbles, thereby effectively improving the dyeing effect. Several sets of strip-shaped protrusions 874 are set to support the fabric, effectively preventing the textile fabric from blocking the air jet nozzles 875. By blowing the heated pure air into the liquid dye, the liquid dye is heated and bubbles are generated. The increased dye temperature improves dyeing efficiency. The injection of air effectively breaks up dye molecule agglomeration, making the dye particle size distribution more uniform. The micro-jet generated by the bursting of bubbles enhances the dye penetration to the fiber surface. At the same time, the air flow promotes dye convection, making the dye more uniform and reducing local temperature differences, thereby effectively avoiding dyeing unevenness.

[0036] The tension of the torsion spring 550 causes the scraper 570 to adhere to the surface of the guide roller 520. By rotating the adjusting handle 560, the squeeze roller 530 drives the scraper 570 to rotate, causing the scraper 570 to separate from the guide roller 520. At this time, it is convenient to pass the textile fabric through the guide roller 520 and the squeeze roller 530 for conveying. After releasing the handle 560, the tension of the torsion spring 550 causes the scraper 570 to adhere to the surface of the textile fabric, so that the excess dye attached to the textile fabric is scraped off while the textile fabric is being conveyed, thereby avoiding dye waste.

[0037] The textile fabric enters the spray box 610 through the feed trough 660. The textile fabric is limited by two sets of limiting rollers 630. The spray nozzles 650 on two sets of spray pipes 640 spray both sides of the textile fabric. While fixing the color of the dyed textile fabric, it also effectively removes the odor generated after dyeing. The sprayed textile fabric is discharged into the winding box 700 through the discharge trough 670 and wound up by the winding roller 710.

[0038] After the dyeing and winding of a roll of textile fabric is completed, the auxiliary dyeing mechanism 800 is moved upward above the dyeing tank 100 by two sets of electric cylinders 130, so that the textile fabric is separated from the dye in the dyeing tank 100. The unwinding motor 230 and the winding motor 720 rotate in opposite directions synchronously, thereby realizing the reverse conveying of the textile fabric. At this time, heated pure air is sprayed onto the surface of the textile fabric through several sets of air nozzles 875, so that the dyed textile fabric can be air-dried during the reverse conveying process. After the dyeing and air-drying operations are completed, the textile fabric is wound onto the unwinding roller 220 for disassembly, and then the installation and dyeing operation of the next roll of textile fabric is carried out.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dyeing machine for textile fabrics, comprising an immersion dyeing tank, characterized in that: A roll-up platform is provided on one side of the dyeing tank. Two sets of roll-up frames are fixedly connected to the roll-up platform. A roll-up roller for installing textile fabric rolls is rotatably connected between the two sets of roll-up frames. On the other side of the dyeing tank, there is a spraying mechanism for fixing color and removing odor from the dyed textile fabric. On one side of the spraying mechanism, there is a winding box, and the inner wall of the winding box is rotatably connected to a winding roller for winding and conveying the textile fabric. A gantry frame is set at the center of the dyeing tank, and two sets of electric cylinders are installed at the top of the gantry frame. The output ends of the two sets of electric cylinders are connected to an auxiliary dyeing mechanism. The auxiliary dyeing mechanism includes a first vertical plate and a second vertical plate, and two sets of connecting shafts are symmetrically arranged between the first vertical plate and the second vertical plate. A transmission box is fixedly connected to the outer side wall of the first upright plate, and several sets of tensioning parts for automatically tensioning and folding textile fabrics are rotatably connected to the inner side wall of the first upright plate.

2. The dyeing machine for textile fabrics according to claim 1, characterized in that: The inner sidewall of the second upright plate is provided with several sets of annular grooves. The outer sidewall of the second upright plate is fixedly connected with a linkage box. The top of the transmission box and the linkage box are respectively connected to the output end of two sets of electric cylinders. The outer sidewalls of the first upright plate and the second upright plate are each fixedly connected with two sets of sliders. Each of the four sets of sliders is provided with a through hole. The dyeing tank is fixedly connected with four sets of limiting shafts. The four sets of through holes are respectively movably fitted with the four sets of limiting shafts.

3. The dyeing machine for textile fabrics according to claim 2, characterized in that: The transmission box is equipped with an air guide pipe, which is connected to several sets of rotating joints. Each set of rotating joints passes through the first vertical plate and is connected to a corresponding tensioning part. Each set of rotating joints is fitted with an annular worm gear. A worm is rotatably connected to the inner wall of the transmission box, and the worm is meshed with several sets of annular worm gears. An adjusting motor is installed on the outer wall of the transmission box, and the adjusting motor is drivenly connected to one end of the worm.

4. The dyeing machine for textile fabrics according to claim 3, characterized in that: The tensioning section includes a strip-shaped block, which is a hollow structure. The interior of the strip-shaped block is connected to one end of the rotary joint. Two sets of tensioning rollers are symmetrically arranged on the strip-shaped block. Both sets of tensioning rollers are hollow structures, and their interiors are connected to the interior of the strip-shaped block. The other end of each set of tensioning rollers is fixedly connected to a snap-fit ​​block, which movably fits into a corresponding set of annular grooves. Several sets of strip-shaped protrusions are laid on the tensioning rollers. These several sets of strip-shaped protrusions are arranged in a circular array around the central axis of the tensioning rollers. These several sets of strip-shaped protrusions movably fit into the textile fabric. Several sets of air jets are arranged between each pair of adjacent sets of strip-shaped protrusions, and these several sets of air jets are connected to the interior of the tensioning rollers.

5. The dyeing machine for textile fabrics according to claim 1, characterized in that: The spraying mechanism includes a spray box and a storage tank. The storage tank contains a mixed liquid for deodorizing dyed textile fabrics. A liquid pump is installed on the storage tank. The input end of the liquid pump extends into the liquid in the storage tank, and the output end of the liquid pump extends into the interior of the spray box.

6. The dyeing machine for textile fabrics according to claim 5, characterized in that: The spray box is provided with a feed trough and a discharge trough. The feed trough is located on the side near the dyeing tank, and the discharge trough is connected to the inside of the winding box. The spray box is provided with two sets of limiting rollers, which are respectively located on one side of the feed trough and the discharge trough. Spray pipes are fixedly connected to the inner walls of both sides of the spray box. Both sets of spray pipes are connected to the outlet end of the liquid pump. Each set of spray pipes is provided with several sets of spray nozzles, and the spray nozzles are all facing the surface of the textile fabric.

7. The dyeing machine for textile fabrics according to claim 1, characterized in that... An air guiding mechanism is provided on the outside of the dyeing tank. The air guiding mechanism includes an air purifier. The air outlet of the air purifier is connected to an air pump. The air outlet of the air pump is connected to a heater. An air outlet pipe is connected to the heater. The other end of the air outlet pipe is connected to an auxiliary dyeing mechanism.

8. The dyeing machine for textile fabrics according to claim 1, characterized in that: Two sets of limiting plates are fixedly connected to the dyeing tank, and two sets of sorting rollers are rotatably connected between the two sets of limiting plates. The two sets of sorting rollers are movably fitted together, and an extrusion part is provided on the side of the dyeing tank near the spraying mechanism.

9. The dyeing machine for textile fabrics according to claim 8, characterized in that: The extrusion section includes two sets of fixed frames, both of which are mounted on the dyeing tank. A guide roller and an extrusion roller are arranged between the two sets of fixed frames. Both ends of the extrusion roller are fixedly connected to a rotating shaft. The two sets of rotating shafts are rotatably connected to the two sets of fixed frames respectively. One end of one set of rotating shafts passes through the fixed frame and is fixedly connected to an adjustment handle. A torsion spring is arranged between the extrusion roller and the two sets of fixed frames. The two sets of torsion springs are respectively sleeved on the two sets of rotating shafts. A scraper is fixedly connected to the extrusion roller, and one end of the scraper is attached to the guide roller.

10. The dyeing machine for textile fabrics according to claim 1, characterized in that: An unwinding motor is installed on one of the unwinding frames, and the unwinding motor is drivenly connected to one end of the unwinding roller. A winding motor is installed on the outer wall of the winding box, and the output end of the winding motor is drivenly connected to one end of the winding roller.

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