Energy-saving and environment-friendly printing and dyeing equipment and printing and dyeing method

Abstract

The invention relates to the technical field of printing and dyeing equipment, and provides energy-saving environment-friendly printing and dyeing equipment and a printing and dyeing method.The energy-saving environment-friendly printing and dyeing equipment comprises a printing and dyeing vat, a plurality of rollers are rotationally connected into the printing and dyeing vat, a driving motor used for driving the rollers to rotate is fixedly connected to the exterior of the printing and dyeing vat, and bristle meshes are detachably connected to the outer surfaces of the rollers; a plurality of water outlet holes are formed in the surface of the water storage cavity and extend out of the outer surface of the roller, a heating pipe is arranged in the water storage cavity and fixedly connected with the printing and dyeing vat, a water circulation device is arranged in the printing and dyeing vat, the water inlet position of the water circulation device is located on the side face of the printing and dyeing vat and close to the bottom of the printing and dyeing vat, and the water outlet position of the water circulation device is connected with the water storage cavity. The water circulation device is provided with a filter used for filtering impurities in water and a feeding device used for adding dye into the water. By means of the technical scheme, the problem that in the prior art, a large amount of water is needed for dip dyeing of cloth, and consequently the water use cost and the wastewater treatment cost are high is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing and dyeing equipment, and in particular to energy-saving and environment-friendly printing and dyeing equipment and a printing and dyeing method. Background Art

[0002] As a crucial process in the textile industry, printing and dyeing technology aims to evenly and firmly attach various dyes to the fibers of textiles to give textiles a colorful appearance and unique style. Among the many printing and dyeing processes, the penetration printing and dyeing method is widely used because of its simple operation and wide adaptability. This method immerses the cloth in a dye solution containing dyes so that the dyes fully penetrate into the fibers, thereby achieving uniform dyeing. Generally, the penetration printing and dyeing process includes the following key steps: pretreatment, impregnation, color fixation, and post-treatment.

[0003] Although the immersion printing and dyeing method has good dyeing effect and process flexibility, the existing immersion printing and dyeing equipment faces some technical bottlenecks during application.

[0004] The prior art discloses an energy-saving and environment-friendly cloth soaking printing and dyeing equipment, comprising a drainage mechanism, a circulating feeding mechanism, a cleaning mechanism and a printing and dyeing pool, wherein the drainage mechanism for guiding cloth conveying is installed inside the printing and dyeing pool, the circulating feeding mechanism for dye circulating filtering and feeding is installed above the drainage mechanism, and the cleaning mechanism for cleaning the sediment at the bottom of the printing and dyeing pool is arranged at the bottom of the printing and dyeing pool, the drainage mechanism comprises a rotating shaft longitudinally installed at the lower part of the printing and dyeing pool, a guide plate is installed on the outer side of the rotating shaft, and connected heating rods are respectively arranged inside the rotating shaft and the guide plate, and a heater is installed at one end of the rotating shaft, and the heater is movably connected to the outer wall of the printing and dyeing pool.

[0005] This method requires a large amount of water to cover the heating rod and the impregnated fabric, which not only leads to huge water costs, but also due to the presence of chemical substances such as dyes and auxiliaries, the large amount of wastewater generated during the dyeing process also needs to be treated in a complex and expensive manner to meet environmental emission standards. In the wastewater treatment process, not only the removal of harmful substances must be considered, but also a large amount of energy and chemicals are consumed, further increasing costs. In addition, with increasingly stringent environmental regulations and the increasing scarcity of water resources, this high water consumption and high wastewater discharge immersion printing and dyeing method has become increasingly unsustainable. Summary of the invention

[0006] The present invention provides an energy-saving and environment-friendly printing and dyeing device and a printing and dyeing method, which can not only effectively reduce the water usage and wastewater discharge in the printing and dyeing process, but also improve the dyeing efficiency, thereby achieving a more economical and environmentally friendly production goal.

[0007] The technical solution of the present invention is as follows: An energy-saving and environment-friendly printing and dyeing equipment comprises a printing and dyeing cylinder, wherein a plurality of rollers are rotatably connected inside the printing and dyeing cylinder, a driving motor for driving the rollers to rotate is fixedly connected outside the printing and dyeing cylinder, a brush mesh is detachably connected to the outer surface of the roller, a water storage cavity is provided in the middle of the roller, a plurality of water outlet holes are provided on the surface of the water storage cavity, the water outlet holes extend out of the outer surface of the roller, a heating pipe is provided in the water storage cavity, the heating pipe is fixedly connected to the printing and dyeing cylinder, a water circulation device is provided in the printing and dyeing cylinder, a water inlet of the water circulation device is located on the side of the printing and dyeing cylinder and close to the bottom of the printing and dyeing cylinder, a water outlet of the water circulation is connected to the water storage cavity, and the water circulation device is provided with a filter for filtering impurities in the water and a feeding device for adding dye to the water.

[0008] Furthermore, fixing grooves for fixing the bristle mesh are provided at both ends of the roller, and the two ends of the bristle mesh are respectively embedded in the fixing grooves on both sides of the roller, and a disassembly cover is provided on the side of the fixing groove away from the water storage hole, and the disassembly cover is detachably connected to the roller.

[0009] Furthermore, the water circulation device includes a water transfer tank, a first water pump, a water suction pipe, a water transfer pipe, and a return pipe. The water transfer tank is located on one side of the printing and dyeing cylinder, the first water pump and the water transfer tank are located on the same side of the printing and dyeing cylinder, the water inlet of the first water pump is connected to the water suction pipe, the end of the water suction pipe away from the first water pump extends into the printing and dyeing cylinder and extends into the printing and dyeing cylinder, the water outlet of the first water pump is connected to the water transfer pipe, the end of the water transfer pipe away from the first water pump extends toward the water transfer tank and extends into the water transfer tank, the filter is located in the water transfer tank, the end of the water transfer pipe away from the first water pump is located in the filter, the return pipe is located at the bottom of the water transfer tank, one end of the return pipe is connected to the bottom of the water transfer tank and extends to the inside of the water transfer tank, and the end of the return pipe away from the water transfer tank is connected to the roller and extends to the inside of the roller.

[0010] Furthermore, the feeding device includes a feeding box with dye liquid inside, a metering pump, a feed pipe, and a discharge pipe. The feeding box and the water transfer tank are located on the same side of the printing and dyeing cylinder. The metering pump is located on the top of the feeding box and is fixedly connected to the feeding box. The water inlet of the metering pump is connected to one end of the feed pipe, and the end of the feed pipe away from the metering pump extends to the inside of the feeding box. The water outlet of the metering pump is connected to one end of the discharge pipe, and the end of the discharge pipe away from the metering pump extends to the inside of the water transfer tank. A feeding opening is provided on the top of the feeding box, and a feeding cover is abutted against the feeding opening.

[0011] Furthermore, a pressing roller for pressing the cloth to be printed and dyed into the printing and dyeing water is provided between two adjacent rollers, the highest horizontal height of the pressing roller is less than or equal to the horizontal height of the center line of the roller, a connecting plate is provided on the upper side of the pressing roller, the two ends of the pressing roller are respectively rotatably connected to the two sides of the connecting plate, and the side of the connecting plate facing away from the pressing roller is fixedly connected to the top of the printing and dyeing cylinder.

[0012] Furthermore, a water spray channel is provided in the connecting plate, and water spray outlets of the water spray channel extend toward both sides of the roller, and the printing and dyeing cylinder is provided with a water supply device for providing printing and dyeing water to the water spray channel.

[0013] Furthermore, the water supply device includes a second water pump, a water inlet pipe, and a water outlet pipe. The second water pump and the driving motor are located on the same side of the printing and dyeing cylinder. The water inlet of the second water pump is connected to one end of the water inlet pipe. The end of the water inlet pipe away from the second water pump extends to the inside of the roller and close to the bottom of the roller. The water outlet of the second water pump is connected to one end of the water outlet pipe. The end of the water outlet pipe away from the second water pump is connected to the water spray channel.

[0014] Furthermore, the water supply device also includes a connecting pipe, one end of the connecting pipe is connected to the water spray channel, and one end of the connecting pipe away from the water spray channel is connected to the water circulation device.

[0015] Another object of the present invention is to provide a printing and dyeing method of an energy-saving and environment-friendly printing and dyeing device, comprising the following printing and dyeing steps: S1. Prepare dyeing water and add the prepared dyeing water into the dyeing tank. The water level of the dyeing water in the dyeing box is equal to the center line of the roller. S2, preparing dye liquid, and adding the prepared dye liquid into the feeding device; S3. Put the cloth to be printed and dyed from one end of the printing and dyeing cylinder, pass it from the upper side of the first roller, extend it into the printing and dyeing water, and then pass it from the upper side or lower side of different rollers in sequence according to the order of the rollers. The cloth abuts against the brush mesh on the surface of the roller, and finally is output from the other end of the printing and dyeing cylinder.

[0016] The working principle and beneficial effects of the present invention are: 1. The present invention sets a water storage cavity and a water outlet hole in the roller, and uses a water circulation device to extract the dyeing water in the dyeing cylinder, filter it, and inject it into the water storage cavity after adding materials, and then discharge it to the roller surface through the water outlet hole, and finally use a brush mesh to evenly cover the discharged dyeing water into the cloth. At the same time, the water outlet hole located in the water injects the dyeing water after the circulation and feeding into the dyeing water in the dyeing cylinder, and mixes it evenly through the rolling of the roller, thereby making the dyeing water circulate in a closed loop. Through such a design, the amount of dyeing water in the dyeing cylinder can be effectively reduced. The dyeing water in the dyeing cylinder does not need to completely immerse the roller. It only needs to immerse half or even less of the roller to achieve efficient cloth printing and dyeing. The present invention effectively reduces the amount of dyeing water in the dyeing cylinder, thereby reducing the water cost and wastewater treatment cost.

[0017] 2. The present invention continuously recycles the dye liquor through the water circulation device, which reduces the consumption of new water and greatly reduces the water cost. At the same time, the impurities are removed by the filter to ensure the purity of the dye liquor, and the dye liquor does not need to be frequently replaced, thereby reducing the discharge and treatment pressure of wastewater.

[0018] 3. The present invention can automatically replenish dyes according to actual needs by setting a feeding device, avoiding dye waste and ensuring stable dyeing effect. This automated process not only saves dyes, but also reduces the possibility of excessive dyes entering wastewater, reducing the complexity of wastewater treatment.

[0019] 4. The present invention uses the heating tube in the water storage cavity to keep the dye solution at a temperature suitable for dyeing, thereby improving the penetration and color fixing effect of the dye, shortening the dyeing time, and achieving efficient printing and dyeing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a side view of the present invention; Figure 3 It is a top view of the present invention; Figure 4 It is a front view of the present invention; Figure 5 for Figure 3 Sectional view at AA; Figure 6 for Figure 4 Cross-sectional view at BB.

[0022] In the figure: 1. printing and dyeing cylinder; 2. roller; 3. water tank; 4. feeding box; 5. filter; 6. pressing roller; 11. driving motor; 21. brush mesh; 22. water storage cavity; 23. water outlet; 24. heating pipe; 25. fixing groove; 26. disassembly cover; 31. first water pump; 32. suction pipe; 33. water pipe; 34. return pipe; 41. metering pump; 42. feed pipe; 43. discharge pipe; 44. feeding cover; 61. connecting plate; 62. water spray channel; 63. second water pump; 64. water inlet pipe; 65. water outlet pipe; 66. connecting pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0024] like Figure 1 to Figure 6 As shown, embodiment 1 proposes an energy-saving and environment-friendly printing and dyeing equipment, including a printing and dyeing cylinder 1, in which a plurality of rollers 2 are rotatably connected, a driving motor 11 for driving the rollers 2 to rotate is fixedly connected to the outside of the printing and dyeing cylinder 1, a brush mesh 21 is detachably connected to the outer surface of the roller 2, a water storage cavity 22 is arranged in the middle of the roller 2, a plurality of water outlet holes 23 are arranged on the surface of the water storage cavity 22, the water outlet holes 23 extend out of the outer surface of the roller 2, a heating pipe 24 is arranged in the water storage cavity 22, the heating pipe 24 is fixedly connected to the printing and dyeing cylinder 1, a water circulation device is arranged in the printing and dyeing cylinder 1, a water inlet of the water circulation device is located on the side of the printing and dyeing cylinder 1 and close to the bottom of the printing and dyeing cylinder 1, a water outlet of the water circulation is connected to the water storage cavity 22, and the water circulation device is provided with a filter 5 for filtering impurities in water and a feeding device for adding dye to water.

[0025] The dyeing and printing tank 1 is the core container of the entire equipment, which is used to contain dyeing and printing water and cloth. In the dyeing and printing tank 1, the cloth contacts the dye and completes the dyeing process; the dyeing and printing tank 1 is closely combined with other functional components (such as the water circulation device and roller 2), which can effectively control the amount of water used in the dyeing process and reduce the discharge of wastewater through the water circulation system. The roller 2 is driven by the motor 11 to drive the cloth forward and contact the dyeing and printing water. The design of the roller 2 drives the cloth forward and evenly distributes the dye in the dyeing and printing water through its rotation, and enables the cloth to fully contact the dyeing and printing water in the dyeing tank, thereby improving the utilization efficiency of the dye, thereby reducing water consumption and wastewater generation. The bristle mesh 21 is installed on the outer surface of the roller 2, and can be used to brush and dye the fabric, increasing the contact area and penetration depth between the fabric surface and the printing and dyeing water; the bristle mesh 21 can ensure that the dye is more evenly distributed on the fabric, improving the dyeing effect, thereby reducing the dependence on high-concentration dyes and large amounts of water; the detachable design also facilitates the cleaning, maintenance and replacement of the bristle mesh 21; the bristle mesh 21 is a bristle fixed vertically or inclined to the mesh on a traditional plastic soft mesh, and the bristles can be made of synthetic fibers, nylon, or polyester materials to ensure that they are not easily damaged during long-term use of dyes and printing and dyeing water. The length and sealing of the bristles should be set according to actual needs. The water storage cavity 22 in the middle of the roller 2 is used to store circulating printing and dyeing water, and the printing and dyeing water is evenly sprayed onto the fabric through a number of water outlets 23 on the surface of the roller 2; this design can realize the reuse of printing and dyeing water, and reduce unnecessary waste of printing and dyeing water by accurately controlling the water output; combined with the bristle mesh 21, it helps to improve dyeing uniformity and efficiency. The heating tube 24 is installed in the water storage cavity 22, and is used to heat the circulating printing and dyeing water to keep it at a temperature suitable for dyeing; the heating tube 24 ensures that the temperature of the printing and dyeing water remains stable during the dyeing process, thereby improving the penetration and fixation rate of the dye and reducing the dyeing time; the heating tube 24 can be a resistive heating tube 24, which converts electrical energy into thermal energy by passing an electric current through the resistance material (usually nickel-chromium alloy) inside it. This heating method can quickly heat the water to the required temperature and keep the water temperature within a suitable range for dyeing through heat conduction. Temperature sensors should be set in the printing and dyeing tank 1 and the water storage cavity 22, and the temperature of the printing and dyeing water should be detected in real time by the temperature sensor, and the temperature of the printing and dyeing water should be adjusted by the heating tube 24. The water circulation device is used to extract the printing and dyeing water at the bottom of the dyeing tank and re-send it into the water storage cavity 22 to realize the recycling of the printing and dyeing water; the water circulation system allows the printing and dyeing water to be reused many times, greatly reducing the demand for new water in the dyeing process and saving water resources. The feeding device can automatically replenish dyes according to the concentration of printing and dyeing water, ensuring that the printing and dyeing water maintains the best dyeing effect, improving the utilization rate of dyes, and avoiding excessive use of dyes.The filter 5 is used to remove impurities in the water, prevent the accumulation of impurities from affecting the dyeing effect, and protect the equipment from pollution or blockage; the use of the filter 5 ensures the purity of the water quality during the water circulation process, improves the stability of the dyeing effect, and reduces the waste of dyes caused by the accumulation of impurities in the dyeing tank. The filter 5 can be composed of filter nets of different mesh sizes stacked in sequence, and the filter nets of different mesh sizes can be graded for filtration. The coarse mesh layer first captures larger particles and impurities, and the finer mesh layer is used to capture smaller particles, which can improve the overall filtering effect.

[0026] In the first embodiment, fixing grooves 25 for fixing the bristle mesh 21 are provided at both ends of the roller 2, and the two ends of the bristle mesh 21 are respectively embedded in the fixing grooves 25 on both sides of the roller 2. A disassembly cover 26 is provided on the side of the fixing groove 25 away from the water storage cavity 22, and the disassembly cover 26 is detachably connected to the roller 2.

[0027] The fixing groove 25 is used to stably fix the bristle mesh 21 on the roller 2 to ensure that the bristle mesh 21 will not shift or fall off during operation. In order to improve the connection strength between the bristle mesh 21 and the roller 2, the bristle mesh 21 can be bonded and fixed to the outer surface of the roller 2. The disassembly cover 26 is provided to facilitate operators to replace or adjust the bristle mesh 21.

[0028] In the first embodiment, the water circulation device includes a water tank 3, a first water pump 31, a water pumping pipe 32, a water pipe 33, and a water return pipe 34. The water tank 3 is located on one side of the dyeing cylinder 1. The first water pump 31 and the water tank 3 are located on the same side of the dyeing cylinder 1. The water inlet of the first water pump 31 is connected to the water pumping pipe 32. The end of the water pumping pipe 32 away from the first water pump 31 extends into the dyeing cylinder 1 and extends into the dyeing cylinder 1. The water outlet of the first water pump 31 is connected to the water pipe 33. 3, one end of the water pipe 33 away from the first water pump 31 extends toward the water box 3 and extends into the water box 3, the filter 5 is located in the water box 3, one end of the water pipe 33 away from the first water pump 31 is located in the filter 5, the return pipe 34 is located at the bottom of the water box 3, one end of the return pipe 34 is connected to the bottom of the water box 3 and extends into the water box 3, and one end of the return pipe 34 away from the water box 3 is connected to the roller 2 and extends into the roller 2.

[0029] The water transfer tank 3 is used to store and process the dyeing water extracted from the dyeing cylinder 1, and provides a filtering space; by setting a filter 5 in the water transfer tank 3, impurities in the dyeing water can be removed to ensure that the reflux water is clean, thereby improving the dyeing effect and the stability of the equipment. The first water pump 31 is used to extract the dyeing water in the dyeing cylinder 1 into the water transfer tank 3, and send the treated water back to the dyeing cylinder 1 through the water transfer pipe 33. The water pumping pipe 32 is connected to the water inlet of the first water pump 31 to guide the water in the dyeing cylinder 1 into the water pump. The water transfer pipe 33 is connected to the water outlet of the first water pump 31 to send the treated water from the water pump back to the water transfer tank 3. The return pipe 34 is responsible for sending the filtered water in the water transfer tank 3 back to the dyeing cylinder 1 for the cloth to be used for dyeing again.

[0030] In embodiment 1, the feeding device includes a feeding box 4 with dye liquid inside, a metering pump 41, a feed pipe 42, and a discharge pipe 43. The feeding box 4 and the water tank 3 are located on the same side of the printing and dyeing cylinder 1. The metering pump 41 is located at the top of the feeding box 4 and is fixedly connected to the feeding box 4. The water inlet of the metering pump 41 is connected to one end of the feed pipe 42, and the end of the feed pipe 42 away from the metering pump 41 extends to the inside of the feeding box 4. The water outlet of the metering pump 41 is connected to one end of the discharge pipe 43, and the end of the discharge pipe 43 away from the metering pump 41 extends to the inside of the water tank 3. A feeding opening is set on the top of the feeding box 4, and a feeding cover 44 is abutted against the feeding opening.

[0031] The feeding box 4 is used to store dye liquid and provide a dye source for the feeding device; by setting the feeding box 4, the dye liquid can be stored centrally, which is convenient for dye addition and management and improves work efficiency. The metering pump 41 is used to accurately control the amount of dye liquid added and transport the dye from the feeding box 4 to the water tank 3; the use of the metering pump 41 can accurately control the amount of dye added, ensure the stability of dye concentration, improve dyeing quality, and avoid dye waste. The feed pipe 42 is connected to the water inlet of the metering pump 41 to guide the dye liquid from the feeding box 4 to the metering pump 41. The discharge pipe 43 is connected to the water outlet of the metering pump 41 to transport the dye liquid to the water tank 3; the discharge pipe 43 sends the dye liquid processed by the metering pump 41 into the water tank 3 to achieve dye addition and keep the dye concentration stable during the dyeing process. The feeding opening is used to add dye liquid to the feeding box 4, and the feeding cover 44 covers the feeding opening to prevent the dye liquid from leaking or being contaminated.

[0032] In the first embodiment, a pressing roller 6 for pressing the cloth to be printed and dyed into the printing and dyeing water is arranged between two adjacent rollers 2. The highest horizontal height of the pressing roller 6 is less than or equal to the horizontal height of the center line of the roller 2. A connecting plate 61 is arranged on the upper side of the pressing roller 6. The two ends of the pressing roller 6 are rotatably connected to the two sides of the connecting plate 61 respectively. The side of the connecting plate 61 facing away from the pressing roller 6 is fixedly connected to the top of the printing and dyeing cylinder 1.

[0033] The pressing roller 6 is used to press the cloth into the dyeing water to ensure that the cloth can fully contact the dyeing water so as to be dyed evenly; through the action of the pressing roller 6, the contact area and contact time between the cloth and the dyeing water can be increased, ensuring that the dye can evenly penetrate into the cloth fiber, improving the consistency and quality of dyeing. The horizontal height of the pressing roller 6 is set to be less than or equal to the horizontal height of the center line of the roller 2, so that when the cloth contacts the dyeing water, the cloth can be smoothly pressed into the dyeing water; this height design ensures that the cloth can be completely immersed in the dyeing water, avoiding the gap between the cloth and the dye liquid, and improving the uniformity of the dyeing effect. The connecting plate 61 connects the two ends of the pressing roller 6 and fixes it to the top of the dyeing cylinder 1; the connecting plate 61 provides stable support and fixation, so that the pressing roller 6 can maintain a stable position during the dyeing process, preventing it from moving or tilting, thereby ensuring the stability and accuracy of the dyeing process.

[0034] In the first embodiment, a water spray channel 62 is provided in the connecting plate 61, and the water spray channel 62 extends water spray ports toward both sides of the roller 2, and the printing and dyeing cylinder 1 is provided with a water supply device for providing printing and dyeing water to the water spray channel 62. The water spray channel 62 sprays the printing and dyeing water toward both sides of the roller 2 through the provided water spray ports. The water spray channel 62 can spray the printing and dyeing water evenly onto the cloth, further increasing the contact area between the cloth and the dye, thereby improving the dyeing effect and ensuring the consistency and uniformity of the cloth dyeing.

[0035] In the first embodiment, the water supply device includes a second water pump 63, a water inlet pipe 64, and a water outlet pipe 65. The second water pump 63 and the driving motor 11 are located on the same side of the printing and dyeing cylinder 1. The water inlet of the second water pump 63 is connected to one end of the water inlet pipe 64. The end of the water inlet pipe 64 away from the second water pump 63 extends to the inside of the roller 2 and close to the bottom of the roller 2. The water outlet of the second water pump 63 is connected to one end of the water outlet pipe 65. The end of the water outlet pipe 65 away from the second water pump 63 is connected to the water spray channel 62. The second water pump 63 is used to send the printing and dyeing water from the printing and dyeing cylinder 1 into the water spray channel 62; through the action of the second water pump 63, efficient water supply to the water spray channel 62 can be achieved, ensuring that the flow rate and pressure of the sprayed printing and dyeing water meet the dyeing requirements and ensure the stability of the dyeing effect. The water inlet pipe 64 is connected to the water inlet of the second water pump 63 to guide the printing and dyeing water into the pump. The water outlet pipe 65 is connected to the water outlet of the second water pump 63 to deliver the printing and dyeing water into the water spray channel 62 .

[0036] In the first embodiment, the water supply device further includes a connecting pipe 66, one end of the connecting pipe 66 is connected to the water spray channel 62, and the end of the connecting pipe 66 away from the water spray channel 62 is connected to the water circulation device. The connecting pipe 66 is used to connect the water spray channel 62 to the water circulation device. The connecting pipe 66 realizes the connection between the water spray channel 62 and the water circulation device, further provides water pressure for the water tank 3 in the water circulation device, and then increases the water pressure in the roller 2, so that the filtered printing and dyeing water can be more effectively injected into the cloth or the printing and dyeing water in the printing and dyeing cylinder 1, thereby improving the printing and dyeing effect; and the second water pump 63 extracts the printing and dyeing water on the other side of the printing and dyeing cylinder 1, and then transports part of the extracted printing and dyeing water to the water circulation device for filtration, which can effectively increase the filtration area and filtration effect of the printing and dyeing water in the printing and dyeing cylinder 1.

[0037] Compared with the prior art, the first embodiment sets a water storage cavity 22 and a water outlet hole 23 between the roller 2 and the roller 2, and uses a water circulation device to extract the dyeing water in the dyeing cylinder 1, filter it, and inject it into the water storage cavity 22 after adding materials, and then discharge it to the surface of the roller 2 through the water outlet hole 23, and the brush mesh 21 evenly covers the discharged dyeing water into the cloth, so that the cloth on the surface of the roller 2 is impregnated. At the same time, the water outlet hole 23 located in the water injects the dyeing water after filtering and adding materials into the dyeing water in the dyeing cylinder 1, and mixes it evenly through the rolling of the roller 2, thereby making the dyeing water circulation closed loop. The roller 2 is driven to rotate by the driving motor 11, and the printing and dyeing time can be changed by controlling the speed of the driving motor 11, so as to adapt to different cloths. Through such a design, the printing and dyeing water in the printing and dyeing tank 1 does not need to completely immerse the roller 2, but only needs to immerse half or even less of the roller 2 to achieve the printing and dyeing effect of the prior art, which effectively reduces the amount of printing and dyeing water in the printing and dyeing tank 1, and then reduces the amount of wastewater, thereby reducing water use costs and wastewater treatment costs. Example

[0038] A printing and dyeing method of energy-saving and environment-friendly printing and dyeing equipment, comprising the following printing and dyeing steps: S1, prepare dyeing water, and add the prepared dyeing water into the dyeing cylinder 1, the water level of the dyeing water in the dyeing box is equal to or less than the center line of the roller 2, and the dyeing water in the dyeing box is not above the pressure dyeing roller 6; S2, preparing dye liquid, and adding the prepared dye liquid into the feeding device; S3. Put the cloth to be printed and dyed from one end of the printing and dyeing cylinder 1, pass through the upper side of the first roller 2, and extend into the printing and dyeing water. After entering the printing and dyeing water, pass through the lower side of the pressure dyeing roller 6, and then extend to the upper side of the second roller 2. After passing through the upper side of the second roller 2, repeat the previous method of passing through the pressure dyeing roller 6 and roller 2 until it passes through the next roller 2 and is output from the other end of the printing and dyeing cylinder 1. During printing and dyeing, the cloth abuts against the brush mesh 21 on the surface of the roller 2.

[0039] Printing and dyeing process: the driving motor 11 drives the roller 2 to rotate, and the roller 2 drives the cloth forward. At the same time, the first water pump 31 draws the printing and dyeing water in the printing and dyeing cylinder 1 into the water tank 3, and the printing and dyeing water in the water tank 3 then enters the water storage cavity 22, and is discharged from the water outlet 23 to dye the cloth or injected into the printing and dyeing water in the printing and dyeing cylinder 1; the second water pump 63 draws the printing and dyeing water in the printing and dyeing cylinder 1 into the water spray channel 62, and part of the printing and dyeing water in the water spray channel 62 is sprayed out from the water spray port to dye the cloth, and the other part enters the water tank 3 from the connecting pipe 66 for filtration; the quantitative pump 41 injects the dye liquid into the water tank 3 according to the preset amount. The cloth is printed and dyed under the drive of the roller 2 and the dyeing of multiple printing and dyeing water, and is output from the other end of the printing and dyeing cylinder 1.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving and environment-friendly printing and dyeing device, comprising a printing and dyeing cylinder (1), characterized in that: A plurality of rollers (2) are rotatably connected inside the dyeing cylinder (1), a driving motor (11) for driving the rollers (2) to rotate is fixedly connected to the outside of the dyeing cylinder (1), a brush mesh (21) is detachably connected to the outer surface of the roller (2), a water storage cavity (22) is provided in the middle of the roller (2), a plurality of water outlet holes (23) are provided on the surface of the water storage cavity (22), and the water outlet holes (23) extend out of the outer surface of the roller (2), a heating pipe (24) is provided in the water storage cavity (22), and the heating pipe (24) is fixedly connected to the dyeing cylinder (1), a water circulation device is provided in the dyeing cylinder (1), a water inlet of the water circulation device is located on the side of the dyeing cylinder (1) and close to the bottom of the dyeing cylinder (1), and a water outlet of the water circulation is connected to the water storage cavity (22), and the water circulation device is provided with a filter (5) for filtering impurities in water and a feeding device for adding dye to water.

2. The energy-saving and environment-friendly printing and dyeing equipment according to claim 1, characterized in that: The roller (2) is provided with fixing grooves (25) at both ends for fixing the bristle mesh (21); the two ends of the bristle mesh (21) are respectively embedded in the fixing grooves (25) at both sides of the roller (2); a disassembly cover (26) is provided on the side of the fixing groove (25) facing away from the water storage cavity (22); and the disassembly cover (26) is detachably connected to the roller (2).

3. The energy-saving and environment-friendly printing and dyeing equipment according to claim 1, characterized in that: The water circulation device comprises a water transfer tank (3), a first water pump (31), a water suction pipe (32), a water transfer pipe (33), and a water return pipe (34); the water transfer tank (3) is located on one side of the printing and dyeing vat (1); the first water pump (31) and the water transfer tank (3) are located on the same side of the printing and dyeing vat (1); a water inlet of the first water pump (31) is connected to the water suction pipe (32); an end of the water suction pipe (32) away from the first water pump (31) extends into the printing and dyeing vat (1) and extends into the printing and dyeing vat (1); a water outlet of the first water pump (31) is connected to the water transfer pipe (33). The end of the water pipe (33) away from the first water pump (31) extends toward the water tank (3) and extends into the water tank (3); the filter (5) is located in the water tank (3); the end of the water pipe (33) away from the first water pump (31) is located in the filter (5); the return pipe (34) is located at the bottom of the water tank (3); one end of the return pipe (34) is connected to the bottom of the water tank (3) and extends into the water tank (3); the end of the return pipe (34) away from the water tank (3) is connected to the roller (2) and extends into the roller (2).

4. The energy-saving and environment-friendly printing and dyeing equipment according to claim 3 is characterized in that: The feeding device comprises a feeding box (4) containing dye liquid, a metering pump (41), a feeding pipe (42), and a discharging pipe (43); the feeding box (4) and the water-passing box (3) are located on the same side of the printing and dyeing cylinder (1); the metering pump (41) is located at the top of the feeding box (4) and is fixedly connected to the feeding box (4); the water inlet of the metering pump (41) is connected to one end of the feeding pipe (42); the end of the feeding pipe (42) away from the metering pump (41) extends to the inside of the feeding box (4); the water outlet of the metering pump (41) is connected to one end of the discharging pipe (43); the end of the discharging pipe (43) away from the metering pump (41) extends to the inside of the water-passing box (3); a feeding opening is provided at the top of the feeding box (4); and a feeding cover (44) is abutted against the feeding opening.

5. The energy-saving and environment-friendly printing and dyeing equipment according to claim 1, characterized in that: A pressing roller (6) for pressing the fabric to be printed and dyed into the printing and dyeing water is provided between two adjacent rollers (2); the highest point of the pressing roller (6) is less than or equal to the horizontal height of the center line of the roller (2); a connecting plate (61) is provided on the upper side of the pressing roller (6); the two ends of the pressing roller (6) are rotatably connected to the two sides of the connecting plate (61) respectively; and the side of the connecting plate (61) facing away from the pressing roller (6) is fixedly connected to the top of the printing and dyeing cylinder (1).

6. The energy-saving and environment-friendly printing and dyeing equipment according to claim 5, characterized in that: A water spray channel (62) is provided in the connecting plate (61), and water spray outlets of the water spray channel (62) extend toward the roller (2) on both sides of the roller (2). The printing and dyeing cylinder (1) is provided with a water supply device for providing printing and dyeing water to the water spray channel (62).

7. The energy-saving and environment-friendly printing and dyeing equipment according to claim 6 is characterized in that: The water supply device comprises a second water pump (63), a water inlet pipe (64), and a water outlet pipe (65); the second water pump (63) and the driving motor (11) are located on the same side of the printing and dyeing cylinder (1); the water inlet of the second water pump (63) is connected to one end of the water inlet pipe (64); the end of the water inlet pipe (64) away from the second water pump (63) extends to the inside of the roller (2) and close to the bottom of the roller (2); the water outlet of the second water pump (63) is connected to one end of the water outlet pipe (65); the end of the water outlet pipe (65) away from the second water pump (63) is connected to the water spray channel (62).

8. The energy-saving and environment-friendly printing and dyeing equipment according to claim 7, characterized in that: The water supply device further comprises a connecting pipe (66), one end of the connecting pipe (66) being connected to the water spray channel (62), and one end of the connecting pipe (66) being away from the water spray channel (62) being connected to the water circulation device.

9. A printing and dyeing method according to any one of claims 1 to 8, characterized in that: The printing and dyeing process includes the following steps: S1, preparing dyeing water, and adding the prepared dyeing water into the dyeing tank (1), the water level of the dyeing water in the dyeing box being equal to the center line of the roller (2); S2, preparing dye liquid, and adding the prepared dye liquid into the feeding device; S3, placing the cloth to be printed and dyed from one end of the printing and dyeing cylinder (1), passing through the upper side of the first roller (2), extending into the printing and dyeing water, and then passing through the upper side or lower side of different rollers (2) in sequence according to the order of the rollers (2), the cloth abutting against the brush mesh (21) on the surface of the roller (2), and finally output from the other end of the printing and dyeing cylinder (1).

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