CN111501243B - Spray dyeing system and method - Google Patents

Spray dyeing system and method Download PDF

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Publication number
CN111501243B
CN111501243B CN202010386171.8A CN202010386171A CN111501243B CN 111501243 B CN111501243 B CN 111501243B CN 202010386171 A CN202010386171 A CN 202010386171A CN 111501243 B CN111501243 B CN 111501243B
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yarn
dyeing
tension
yarns
image
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CN111501243A (en
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施延刚
黄中煦
黄龙
陈茜
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Suzhou Kilead Intelligent Manufacturing Co ltd
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Suzhou Kilead Intelligent Manufacturing Co ltd
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/02Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/02Rollers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/04Carriers or supports for textile materials to be treated

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention relates to a spray dyeing system and a method, wherein the system comprises an unreeling device for unreeling yarns, a tension control device for conveying the yarns and controlling the tension of the yarns, a dyeing device for dyeing the yarns, an image acquisition device for acquiring yarn images, a heating and curing device for heating and curing the dyeing effect of the yarns and a reeling device for reeling the yarns, which are sequentially arranged, wherein the image acquisition device is connected with a controller module for regulating and controlling the dyeing parameters of the yarns, and the controller module is connected with the tension control device; the controller module is connected with an image preprocessing module, an image extraction module and an image comparison module. The invention can collect the dyeing condition of the yarn, regulate and control the dyeing parameters, reduce the chromatic aberration of the dyed yarn and achieve the effect of improving the dyeing quality of the yarn.

Description

Spray dyeing system and method
Technical Field
The invention relates to the technical field of textile equipment, in particular to a spray dyeing system and a spray dyeing method.
Background
The yarn is a textile, is processed into products with certain fineness by various textile fibers, is used for weaving, rope making, thread making, knitting, embroidery and the like, and is divided into staple fiber yarn, continuous filament yarn and the like. In the production process, the yarn is required to be dyed in order to obtain yarns with different colors, and the dyeing method of the yarn is various, including but not limited to hank dyeing, cone dyeing, beam exhaust dyeing, beam pad dyeing, ball warp dyeing and the like.
Chinese patent No. CN102409491B discloses a zero-emission waterless continuous dyeing system and method, wherein multiple groups of spray curtains in a waterless room are vertically arranged at intervals, liquid inlets of the multiple groups of spray curtains are communicated with a liquid inlet pipe through an electromagnetic valve, a signal control end of the electromagnetic valve is connected with a signal end of a PLC controller, an inlet of the liquid inlet pipe is communicated with an outlet of a pressure pump, an inlet of the pressure pump is communicated with a dye tank through a pipeline, an upper cloth guide roller and a lower cloth guide roller are respectively arranged above and below the spray curtains, a central shaft at the end part of the lower cloth guide roller is driven by a motor through a transmission mechanism to synchronously rotate, and whether the pressure pump and the motor work or not is controlled by the PLC controller. This scheme is through the nozzle spray blowout atomizing dye liquor in the multiunit spray curtain, and the atomizing dye liquor is dyed by the fabric thing in to the anhydrous room, but because the great difficult atomizing dye liquor evenly distributed of doing of whole anhydrous room space, the fabric that leads to dyeing to accomplish easily has the colour difference, influences fabric dyeing quality.
Therefore, how to improve the dyeing quality of the yarn while saving water for dyeing is a problem to be considered.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a spray dyeing system and a spray dyeing method;
the invention aims to provide a spray dyeing system which can collect the dyeing condition of yarn, regulate and control dyeing parameters, reduce the chromatic aberration of the dyed yarn and achieve the effect of improving the yarn dyeing quality;
the second purpose of the invention is to provide a spray dyeing method, which can collect the dyeing condition of the yarn, regulate and control dyeing parameters, reduce the chromatic aberration of the dyed yarn and achieve the effect of improving the yarn dyeing quality.
The above object of the present invention is achieved by the following technical solutions:
a spray dyeing system characterized by: the yarn dyeing device comprises an unwinding device for unwinding yarns, a tension control device for conveying yarns and controlling the tension of the yarns, a dyeing device for dyeing the yarns, an image acquisition device for acquiring yarn images, a heating and curing device for heating and curing the dyeing effect of the yarns and a winding device for winding the yarns, wherein the image acquisition device is connected with a controller module for regulating and controlling the dyeing parameters of the yarns, and the controller module is connected with the tension control device;
the controller module is connected with an image preprocessing module, and the image preprocessing module is used for extracting yarn image information in the image information extracted by the image acquisition device along the yarn contour;
the controller module is connected with an image extraction module, and the image extraction module is used for extracting an RGB pixel matrix of yarn image information and exporting the obtained RGB pixel matrix;
the controller module is connected with an image comparison module, and the image comparison module is used for comparing the RGB pixel matrix derived by the image extraction module with a standard RGB pixel matrix and outputting comparison data to the controller module;
the dyeing device comprises a pneumatic finger, two liquid spraying pipes for spraying dye liquor and two pieces of dyeing sponges arranged in parallel, wherein one end of each piece of dyeing sponge arranged in a back direction is provided with a clamping net with a large aperture along the circumferential direction, and the two clamping nets are fixedly connected with two clamping fingers of the pneumatic finger respectively; two all be equipped with the hydrojet pump on the hydrojet pipe, two the hydrojet pump all is connected with the controller module, two the hydrojet mouth of hydrojet pipe is towards two centre gripping nets respectively.
By adopting the technical scheme, the two pieces of dyeing sponge are controlled by the pneumatic finger to clamp the yarns to be dyed, the liquid spraying pump is controlled to spray the dyeing liquid on the dyeing sponge through the liquid spraying pipe, the yarns can be dyed in the conveying process, and the controller module can conveniently adjust various parameters of yarn dyeing through the tension control device and the liquid spraying pump, so that the yarns can be dyed in a water-saving and high-quality manner; the image acquisition device, the image preprocessing module, the image extraction module and the image comparison module can accurately acquire the image information of the dyed yarns, perform parallel comparison to obtain the color error value of the dyed yarns and the standard sample, feed the color error value back to the controller module, and adjust dyeing parameters by the controller module when the error value exceeds the allowable error range, so that the color difference of the dyed yarns is reduced, and the effect of improving the yarn dyeing quality is achieved.
The present invention in a preferred example may be further configured to: tension control device includes tension frame, tension controller, is used for detecting the tensile tension of yarn and detects the roller, is used for controlling the tensile tension roller of yarn and is used for carrying the conveying roller of yarn, tension detects roller, tension roller and conveying roller and all rotates with the tension frame to be connected, be equipped with on the tension detection roller and be used for detecting the tensile tension sensor of yarn, the tension roller is connected with and is used for driving its pivoted tension motor, tension sensor, tension motor all are connected with tension controller, tension controller and controller module fixed connection.
Through adopting above-mentioned technical scheme, tension sensor can real-time detection yarn's tension, and the rotational speed that adjusts the tension motor through tension controller and then changes the tension roller reaches the purpose of adjusting yarn tension when yarn tension appears changing for yarn tension keeps stable.
The present invention in a preferred example may be further configured to: and a complementary dyeing device is arranged between the image acquisition device and the heating curing, and the complementary dyeing device and the dyeing device have the same structure.
Through adopting above-mentioned technical scheme, the setting of benefit dyeing device can carry out the supplementary dyeing to the yarn when the image contrast module detects that the yarn has great colour difference value, ensures the dyeing quality of yarn.
The present invention in a preferred example may be further configured to: dye liquor collecting tanks for collecting dripping dye liquor are arranged below the dyeing device and the dye replenishing device.
Through adopting above-mentioned technical scheme, the dye liquor collecting vat is arranged in collecting the dye liquor that drips from dyeing device and benefit dyeing device on the dyeing sponge, avoids causing the waste.
The present invention in a preferred example may be further configured to: a cache device for caching yarns is also arranged in the heating and curing device, each cache device comprises a cache rack, the cache racks are rotatably connected with a plurality of driving rollers along the length direction of the cache racks, and one side of each rack is provided with a driving motor for driving the driving rollers to rotate; all be equipped with the limiting plate along its length direction on two inside walls of frame, two the limiting plate all is located the drive roll below and rotates jointly and is connected with many driven volleys.
Through adopting above-mentioned technical scheme, the yarn is crisscross through drive roll and driven voller, caches the yarn, can ensure the thermosetting quality of yarn to under the prerequisite of guaranteeing yarn thermosetting quality, can reduce thermosetting device's length through setting up of buffer memory device, promote space utilization, reduction in production cost.
The present invention in a preferred example may be further configured to: a plurality of lifting electric cylinders for driving the limiting plates to lift are arranged on two inner side walls of the rack, and the plurality of lifting electric cylinders are fixedly connected with the two limiting plates respectively; and a buffer device is also arranged between the image acquisition device and the dyeing device.
By adopting the technical scheme, the lifting of the limiting plate is controlled by the lifting electric cylinder, the amount of the buffered yarn of the buffer device can be adjusted, and the controller module can conveniently adjust the heating and curing time of the dyed yarn; and buffer gear between image acquisition device and the dyeing device can carry out the buffer memory to the yarn after dyeing when image acquisition device need shoot the yarn for the yarn that is in image acquisition device place region keeps quiescent condition, and then promotes the definition that image acquisition device gathered the image.
The second aim of the invention is realized by the following technical scheme:
a spray-painting method comprising the steps of:
s1, setting parameters: setting various dyeing parameters according to the yarn types, and starting dyeing the yarns;
s2, acquiring an image: periodically collecting image information of dyed yarns;
s3, image preprocessing: extracting the collected image information along the contour of the yarn to obtain yarn image information;
s4, extracting an RGB pixel matrix: extracting the extracted yarn image information to obtain an RGB pixel matrix of the image information, and exporting the RGB pixel matrix;
s5,: comparing the derived RGB pixel matrix with a preset standard RGB pixel matrix of the dyed yarn to generate an error value and outputting the error value;
s6: returning to step S2 when the output error value is within the allowable error range; when the output error value exceeds the allowable error range, the process proceeds to step S7;
s7: and (3) adjusting dyeing parameters: and adjusting the dyeing parameters according to the error value.
By adopting the technical scheme, the yarn is accurately dyed by preset value dyeing parameters, the dyed yarn is periodically subjected to image acquisition and comparative analysis, the obtained error value is fed back to the controller in real time, and the controller can adjust the dyeing parameters according to the error value, so that the effect of improving the yarn dyeing quality is achieved.
The invention in a preferred example may be further configured to: the step S7 specifically includes:
s7.1, adjusting yarn tension: adjusting the yarn tension according to the error value so as to change the dye liquor absorption capacity of the yarn;
s7.2, adjusting the discharge amount of the dye liquor: adjusting the dye liquor ejection amount according to the error value, and further changing the amount of the yarn contacting the dye liquor;
s7.3, adjusting the yarn conveying speed: and adjusting the yarn conveying speed according to the error value so as to change the time for contacting the yarn with the dye liquor.
Through adopting above-mentioned technical scheme, adjust the tension and the transport speed of yarn and the dye liquor blowout volume of hydrojet pipe, and then make the yarn can reach anticipated dyeing effect.
The present invention in a preferred example may be further configured to: in step S7, the yarn segment having the larger error value is subjected to the complementary color.
By adopting the technical scheme, the yarn with the detected color difference is subjected to supplementary dyeing, so that the dyeing effect of the yarn can be further improved.
The present invention in a preferred example may be further configured to: step S2 specifically includes:
s2.1, periodically caching the dyed yarns to enable the yarns to be in a static state;
s2.2, creating a standard light environment suitable for acquiring the image information in the area of the yarn to be acquired with the image information;
and S2.3, collecting the image information of the yarns in the standard light environment.
By adopting the technical scheme, the yarn dyed by the image acquisition device can be clearly shot, so that the subsequent image processing, extraction and comparison are facilitated, the accuracy of the system is improved, and the effect of yarn dyeing quality is achieved.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the controller module controls the two pieces of dyeing sponge to clamp the yarns to be dyed through a pneumatic finger, and controls the liquid spraying pump to spray the dyeing liquid on the dyeing sponge through the liquid spraying pipe, so that the yarns can be dyed in the conveying process, and the controller module can conveniently adjust various parameters of yarn dyeing through the arrangement of the tension control device and the liquid spraying pump, so that the yarns can be dyed in a water-saving and high-quality manner; the image acquisition device, the image preprocessing module, the image extraction module and the image comparison module can accurately acquire the image information of the dyed yarn and perform parallel comparison to obtain the color error value of the dyed yarn and the standard sample, the color error value is fed back to the controller module, and when the error value exceeds the allowable error range, the controller module adjusts dyeing parameters, so that the color difference of the dyed yarn is reduced, and the effect of improving the yarn dyeing quality is achieved;
2. through the arrangement of the complementary dyeing device, complementary dyeing can be carried out on the yarn with the detected color difference, the dyeing quality of the yarn is ensured, and the dyeing effect of the yarn can be further improved;
3. through buffer gear's setting, the yarn is crisscross through drive roll and driven voller, carries out the buffer memory to the yarn, at first can ensure the thermosetting quality of yarn to under the prerequisite of guaranteeing yarn thermosetting quality, can reduce thermosetting device's length through buffer memory device's setting, promote space utilization, reduction in production cost.
Drawings
FIG. 1 is a block diagram showing the construction of a spray painting system according to a first embodiment;
FIG. 2 is a schematic view of the overall structure of a spray dyeing system according to one embodiment;
FIG. 3 is a schematic structural view of a pneumatic finger and dyeing sponge connecting structure of the spray dyeing system in the first embodiment;
fig. 4 is a schematic structural diagram of a cache device of the spray painting system according to an embodiment;
FIG. 5 is a block diagram showing the flow of a spray-painting method according to the second embodiment;
fig. 6 is a block diagram illustrating a detailed procedure of step S2 in the second embodiment.
In the figure, 1, an unwinding device; 2. a tension control device; 21. a tension frame; 22. a tension roller; 221. a tension motor; 23. a tension detection roller; 231. a tension sensor; 24. a tension controller; 25. a conveying roller; 3. a dyeing device; 31. a liquid spraying pipe; 311. a liquid spraying pump; 32. clamping the net; 33. dyeing the sponge; 34. a dye liquor collecting tank; 35. a pneumatic finger; 5. a heating and curing device; 6. a cache device; 61. a drive roll; 62. a driven roller; 63. a drive motor; 64. a limiting plate; 65. a lifting electric cylinder; 66. a buffer frame; 7. a winding device; 8. a complementary dyeing device; 9. a controller module; 91. an image acquisition device; 92. an image preprocessing module; 93. an image extraction module; 94. and an image comparison module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 and 2, the spray dyeing system disclosed by the present invention includes an unwinding device 1 for unwinding yarn, a tension control device 2 for conveying yarn and controlling yarn tension, a dyeing device 3 for dyeing yarn, an image collecting device 91 for collecting yarn image, a heating and curing device 5 for heating and curing yarn dyeing effect, and a winding device 7 for winding yarn, which are sequentially arranged. The image acquisition device 91 is connected with a controller module 9 for regulating and controlling yarn dyeing parameters, the controller module 9 is in communication connection with the tension control device 2 and the dyeing device 3, and is used for regulating and controlling various parameters of the tension control device 2 and the dyeing device 3 according to the actual condition of the yarn, so that the yarn is dyed with high quality.
Referring to fig. 2 and 3, the dyeing apparatus 3 includes a pneumatic finger 35, two liquid spraying tubes 31 for spraying the dyeing liquid, and two dyeing sponges 33 arranged in parallel, wherein one ends of the two dyeing sponges 33 arranged in a back direction are provided with clamping nets 32 with large apertures along the circumferential direction thereof, and the tops of the two clamping nets 32 are respectively fixedly connected with the two clamping fingers of the pneumatic finger 35; all be equipped with hydrojet pump 311 on two hydrojet pipes 31, two hydrojet pumps 311 all are connected with controller module 9, and the hydrojet mouth of two hydrojet pipes 31 is towards two centre gripping nets 32 respectively. The pneumatic finger 35 controls the two pieces of dyeing sponge 33 to clamp the yarns needing dyeing through the two clamping fingers, the liquid spraying pump 311 is controlled to spray the dyeing liquid on the dyeing sponge 33 through the liquid spraying pipe 31, the winding device 7 and the unwinding device 1 are started, the yarns are conveyed and dyed, the dyeing liquid is sprayed on the dyeing sponge 33, the yarns are dyed through the dyeing sponge 33, the dyed yarns are wound by the winding device 7 after being dyed and solidified through the heating and solidifying device 5, compared with the traditional dyeing through a dye vat, the use of water can be greatly saved, the tension control device 2 and the liquid spraying pump 311 are regulated and controlled through the controller module 9, the process parameters of dyeing can be conveniently adjusted through the controller module 9, and the dyeing quality of the yarns is improved.
Referring to fig. 1 and 2, the tension control device 2 includes a tension frame 21, a tension controller 24, a tension detection roller 23 for detecting tension of the yarn, a tension roller 22 for controlling tension of the yarn, and a delivery roller 25 for delivering the yarn, wherein the tension detection roller 23, the tension roller 22, and the delivery roller 25 are all rotatably connected to the tension frame 21, the tension detection roller 23 is provided with a tension sensor 231 for detecting tension of the yarn, the tension roller 22 is connected to a tension motor 221 for driving the tension roller to rotate, the tension sensor 231 and the tension motor 221 are both connected to the tension controller 24, and the tension controller 24 is fixedly connected to the controller module 9. The tension sensor 231 can detect the tension of the yarn in real time, and when the tension of the yarn changes, the tension controller 24 adjusts the rotating speed of the tension motor 221 so as to change the rotating speed of the tension roller 22 to achieve the purpose of adjusting the tension of the yarn, thereby ensuring that the tension of the yarn is kept stable.
Referring to fig. 2 and 4, a buffer device 6 for buffering yarns is also arranged in the heating and curing device 5, each buffer device 6 comprises a buffer rack 66, the buffer rack 66 is rotatably connected with a plurality of driving rollers 61 along the length direction, and a driving motor 63 for driving the driving rollers 61 to rotate is arranged on one side of the rack 66; all be equipped with limiting plate 64 along its length direction on two inside walls of frame 66, two limiting plates 64 all are located drive roll 61 below and are connected with many driven volleys 62 jointly in the rotation. A plurality of lifting electric cylinders 65 for driving the limiting plates 64 to lift are arranged on two inner side walls of the rack 66, and piston rods of the lifting electric cylinders 65 are fixedly connected with the two limiting plates 64 respectively. The yarn is crisscross through drive roll 61 and driven voller 62, buffers the yarn, through the lift of lift electric jar 65 control limiting plate 64, can adjust the volume that buffer device 6 cached the yarn, makes things convenient for controller module 9 to adjust the time of the postheating cure of yarn dyeing, can ensure the heating cure quality of yarn. On the premise of ensuring the yarn heating and curing quality, the length of the heating and curing device 5 can be reduced through the arrangement of the cache device 6, the space utilization rate is improved, and the production cost is reduced.
Referring to fig. 1 and 2, the controller module 9 is connected to an image preprocessing module 92, and the image preprocessing module 92 is used for extracting yarn image information in the image information extracted by the image acquisition device 91 along the yarn contour. The controller module 9 is connected to an image extraction module 93, and the image extraction module 93 is configured to extract an RGB pixel matrix of the yarn image information and derive the acquired RGB pixel matrix. The controller module 9 is connected to an image contrast module 94, the image contrast module 94 having a standard RGB pixel matrix of the yarn stored therein. The image acquisition device 91, the image preprocessing module 92 and the image extraction module 93 extract a plurality of standard samples to obtain a plurality of sample RGB image matrices, wherein the sample RGB image matrix with the highest ratio in the plurality of sample RGB image matrices is a standard RGB pixel matrix. The image comparison module 94 is configured to compare the RGB pixel matrix derived by the image extraction module 93 with the standard RGB pixel matrix, and output comparison data to the controller module 9. When the error value in the comparison data exceeds the allowable error range, the controller module 9 adjusts the dyeing parameters of the tension control device 2 and the liquid storage pump according to the error value, so as to achieve the effect of improving the yarn dyeing quality.
Referring to fig. 1 and 2, the image capturing device 91 includes a plurality of high-speed industrial cameras, and the plurality of high-speed industrial cameras are used for capturing images of the yarns from different angles, and then respectively preprocessing, extracting and comparing image information of the yarns from different angles, so as to achieve the purpose of performing omnidirectional chromatic aberration detection on the yarns. And lighting equipment may be disposed around the image capturing device 91 in order to ensure the clarity of the captured image, thereby creating a relatively standard lighting environment. A plurality of high-speed industrial cameras and lighting equipment can be placed into a sleeve, so that dyed yarns penetrate through the sleeve, and the interference of the external environment on shooting is reduced. And the buffer device 6 is also arranged between the image acquisition device 91 and the dyeing device 3, the dyed yarns can be buffered when the image acquisition device 91 needs to shoot the yarns, and the buffer amount of the buffer device 6 is consistent with the unreeling amount of the unreeling device 1, so that the yarns in the area where the image acquisition device 91 is located are kept in a static state, and the definition of images acquired by the image acquisition device 91 is further improved. When the caching device 6 between the image acquisition device 91 and the dyeing device 3 caches the yarns, the caching device 6 in the heating and curing device 5 raises the limiting plate 64 through the lifting cylinder to reduce the yarn caching amount to release the yarns, so that the winding device 7 is ensured to stably wind and ensure uniform heating and curing time of the yarns, and when the image acquisition process is completed, the caching device 6 in the heating and curing device 5 starts the lifting cylinder 65 to lower the limiting plate 64 to increase the caching amount to cache the yarns again.
Referring to fig. 1 and 2, a complementary dyeing device 8 is arranged between the image acquisition device 91 and the heating curing, and the complementary dyeing device 8 and the dyeing device 3 have the same structure. The two dyeing sponges 33 of the complementary dyeing device 8 are normally in an opening and closing state, and when the image comparison module detects 94 that the yarn has a large color difference value, the complementary dyeing device 8 can control the two dyeing sponges 33 to clamp the yarn section with color difference and perform complementary dyeing on the yarn section through the two clamping fingers of the pneumatic finger 35, so that the dyeing quality of the yarn is ensured. Dye liquor collecting grooves 34 for collecting dripping dye liquor are arranged below the dyeing device 3 and the complementary dyeing device 8. The dropping liquid collecting tank is used for collecting the dye liquor dropping from the dyeing sponge 33 in the dyeing device 3 and the complementary dyeing device 8, and waste is avoided.
The implementation principle of the embodiment is as follows: the controller module 9 sets the tension parameters of the tension control device 2 and the amount and rate of the dye liquor ejected from the liquid jet pump 311 in the dyeing apparatus 3 according to the yarn type. Meanwhile, the pneumatic fingers 35 control the two pieces of dyeing sponge 33 to clamp the yarns to be dyed, then the liquid spraying pump 311 sprays the dyeing liquid on the dyeing sponge 33 through the liquid spraying pipe 31 according to the parameters set by the controller module 9, and the yarns are dyed through the dyeing sponge 33 in sequence during conveying. The controller module 9 periodically starts the image acquisition device 91 to acquire images of dyed yarns, and at this time, the buffer device 6 starts to ensure that the yarns in the area where the image acquisition device 91 is located are in a static state, so as to ensure the definition of image information shot by the image acquisition device 91. Then, the collected image information is processed by the image preprocessing module 92 to obtain the yarn image information, the RGB pixel matrix of the yarn image information is extracted by the image extraction module 93, and the RGB pixel matrix derived by the image extraction module 93 is compared with the standard RGB pixel matrix by the image comparison module 94 to obtain an error value representing the color difference and is input to the controller module 9. When the error value exceeds the allowable error range, the controller module 9 adjusts the dyeing parameters of the tension control device 2 and the liquid storage pump according to the error value, thereby achieving the effect of improving the yarn dyeing quality.
Example two:
referring to fig. 1 and 5, a spray dyeing method is suitable for the spray dyeing system in the first embodiment, and includes the following steps:
s1, setting parameters: setting various dyeing parameters according to the yarn types, and starting dyeing the yarns;
the controller module 9 regulates and controls various parameters of the tension control device 2 and the dyeing device 3 according to the actual condition of the yarn, and then controls the pneumatic fingers 35 to control the two pieces of dyeing sponge 33 to clamp the yarn to be dyed through the two clamping fingers; meanwhile, the controller module 9 controls the liquid spraying pump 311 to spray the dyeing liquid on the dyeing sponge 33 through the liquid spraying pipe 31, the yarn starts to be conveyed and dyed, the dyeing liquid is sprayed on the dyeing sponge 33, and the yarn is dyed through the dyeing sponge 33, so that compared with the traditional dyeing through a dye vat, the use of water can be greatly saved, and the tension control device 2 and the liquid spraying pump 311 are regulated and controlled through the controller module 9, so that the controller module 9 is convenient to adjust dyeing technological parameters, and the dyeing quality of the yarn is improved;
s2, acquiring an image: periodically collecting image information of dyed yarns;
s3, image preprocessing: extracting the collected image information along the contour of the yarn to obtain yarn image information;
s4, extracting an RGB pixel matrix: extracting the extracted yarn image information to obtain an RGB pixel matrix of the image information, and exporting the RGB pixel matrix;
s5, comparing the derived RGB pixel matrix with a preset standard RGB pixel matrix of the dyed yarn to generate an error value and outputting the error value;
the image comparison module 94 stores a standard RGB pixel matrix of the yarn, the image acquisition device 91, the image preprocessing module 92 and the image extraction module 93 extract a plurality of standard samples to obtain a plurality of sample RGB image matrices, and the sample RGB image matrix with the highest ratio in the plurality of sample RGB image matrices is the standard RGB pixel matrix; comparing the RGB pixel matrix derived by the image extraction module 93 with a preset standard RGB pixel matrix of the dyed yarn to generate an error value and outputting the error value;
s6, returning to the step S2 when the output error value is in the allowable error range; when the output error value exceeds the allowable error range, performing step S7;
s7, adjusting dyeing parameters: and adjusting the dyeing parameters according to the error value.
When the error value exceeds the allowable error range, the controller module 9 adjusts the dyeing parameters of the tension control device 2 and the liquid storage pump according to the error value, and meanwhile, the complementary dyeing operation is carried out on the yarn with the error value exceeding the allowable error range through the complementary dyeing device 8, so that the effect of improving the yarn dyeing quality is achieved.
Referring to fig. 5, step S7 specifically includes:
s7.1, adjusting yarn tension: adjusting the yarn tension according to the error value so as to change the dye liquor absorption capacity of the yarn;
s7.2, adjusting the discharge amount of the dye liquor: adjusting the dye liquor ejection amount according to the error value, and further changing the amount of the yarn contacting the dye liquor;
s7.3, adjusting the yarn conveying speed: and adjusting the yarn conveying speed according to the error value so as to change the time for contacting the yarn with the dye liquor.
Comparing the error value with the allowable error range, and when the error value exceeds the allowable error range, adjusting the dyeing parameters such as the tension and the conveying speed of the yarn and the dye liquor ejection quantity of the liquid spraying pipe 31, so that the yarn can achieve the expected dyeing effect.
Referring to fig. 6, step S2 specifically includes:
s2.1, periodically caching the dyed yarns to enable the yarns to be in a static state;
s2.2, creating a standard light environment suitable for acquiring image information in the area of the yarn of which the image information is to be acquired;
and S2.3, collecting the image information of the yarns in the standard light environment.
At intervals, the controller module 9 controls the buffer device 6 between the dyeing device 3 and the image acquisition device 91 to buffer dyed yarns, the buffer amount is equal to the unwinding amount of the unwinding device, and the yarns at the image acquisition device 91 are in a static state. Meanwhile, the controller module 9 controls the lighting equipment to create a standard lighting environment suitable for shooting, the image acquisition device 91 acquires images of the yarns from various angles, the dyed yarns can be clearly shot by the image acquisition device 91, subsequent image processing, extraction and comparison are facilitated, and the effect of yarn dyeing quality is achieved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (8)

1. A spray dyeing system characterized by: the yarn dyeing machine comprises an unwinding device (1) for unwinding yarns, a tension control device (2) for conveying yarns and controlling the tension of the yarns, a dyeing device (3) for dyeing the yarns, an image acquisition device (91) for acquiring yarn images, a heating and curing device (5) for heating and curing the dyeing effect of the yarns and a winding device (7) for winding the yarns, wherein the image acquisition device (91) is connected with a controller module (9) for regulating and controlling the dyeing parameters of the yarns;
the tension control device (2) comprises a tension rack (21), a tension controller (24), a tension detection roller (23) for detecting the tension of the yarn, a tension roller (22) for controlling the tension of the yarn and a conveying roller (25) for conveying the yarn, wherein the tension detection roller (23), the tension roller (22) and the conveying roller (25) are rotatably connected with the tension rack (21), a tension sensor (231) for detecting the tension of the yarn is arranged on the tension detection roller (23), the tension roller (22) is connected with a tension motor (221) for driving the tension roller to rotate, the tension sensor (231) and the tension motor (221) are both connected with the tension controller (24), and the tension controller (24) is fixedly connected with a controller module (9);
the controller module (9) is connected with an image preprocessing module (92), and the image preprocessing module (92) is used for extracting yarn image information in the image information extracted by the image acquisition device (91) along yarn contours;
the controller module (9) is connected with an image extraction module (93), and the image extraction module (93) is used for extracting an RGB pixel matrix of yarn image information and exporting the obtained RGB pixel matrix;
the controller module (9) is connected with an image comparison module (94), and the image comparison module (94) is used for comparing the RGB pixel matrix derived by the image extraction module (93) with a standard RGB pixel matrix and outputting comparison data to the controller module (9);
the dyeing device (3) comprises a pneumatic finger (35), two liquid spraying pipes (31) for spraying dye liquor and two dyeing sponges (33) arranged in parallel, wherein one ends of the two dyeing sponges (33) which are arranged in a back direction are provided with clamping nets (32) with large apertures along the circumferential direction, and the two clamping nets (32) are fixedly connected with the two clamping fingers of the pneumatic finger (35) respectively; two all be equipped with hydrojet pump (311) on hydrojet pipe (31), two hydrojet pump (311) all are connected with controller module (9), two the hydrojet mouth of hydrojet pipe (31) is towards two centre gripping nets (32) respectively.
2. A spray painting system according to claim 1, characterised in that: and a complementary dyeing device (8) is arranged between the image acquisition device (91) and the heating curing, and the complementary dyeing device (8) and the dyeing device (3) have the same structure.
3. A spray painting system according to claim 2, characterised in that: dye liquor collecting tanks (34) for collecting dripping dye liquor are arranged below the dyeing device (3) and the dye supplementing device.
4. A spray painting system according to claim 1, characterised in that: a cache device (6) for caching yarns is arranged in the heating and curing device (5), each cache device (6) comprises a cache frame (66), the cache frames (66) are rotatably connected with a plurality of driving rollers (61) along the length direction of the cache frames, and one side of each frame (66) is provided with a driving motor (63) for driving the driving rollers (61) to rotate; all be equipped with limiting plate (64) along its length direction on two inside walls of frame (66), two limiting plate (64) all are located drive roll (61) below and rotate jointly and are connected with many driven volleys (62).
5. A spray painting system according to claim 4, characterised in that: a plurality of lifting electric cylinders (65) for driving the limiting plates (64) to lift are arranged on two inner side walls of the rack (66), and the plurality of lifting electric cylinders (65) are fixedly connected with the two limiting plates (64) respectively; a buffer device (6) is also arranged between the image acquisition device (91) and the dyeing device (3).
6. A spray dyeing method, characterized by comprising the steps of:
s1, setting parameters: setting various dyeing parameters according to the yarn types, and starting dyeing the yarns;
s2, acquiring an image: periodically collecting image information of dyed yarns;
s3, image preprocessing: extracting the collected image information along the contour of the yarn to obtain yarn image information;
s4, extracting an RGB pixel matrix: extracting the extracted yarn image information to obtain an RGB pixel matrix of the image information, and exporting the RGB pixel matrix;
s5, comparing the derived RGB pixel matrix with a preset standard RGB pixel matrix of the dyed yarn to generate an error value and outputting the error value;
s6, returning to the step S2 when the output error value is in the allowable error range; when the output error value exceeds the allowable error range, the process proceeds to step S7;
s7, adjusting dyeing parameters: adjusting dyeing parameters according to the error value;
the step S7 specifically includes:
s7.1, adjusting yarn tension: adjusting the yarn tension according to the error value so as to change the dye liquor absorption capacity of the yarn;
s7.2, adjusting the spraying amount of the dye liquor: adjusting the dye liquor ejection amount according to the error value, and further changing the amount of the yarn contacting the dye liquor;
s7.3, adjusting the yarn conveying speed: and adjusting the yarn conveying speed according to the error value so as to change the time for contacting the yarn with the dye liquor.
7. A spray painting method according to claim 6, characterised in that: in step S7, the yarn segment having the larger error value is subjected to the complementary color.
8. The spray dyeing method according to claim 6, wherein the step S2 specifically comprises:
s2.1, periodically caching the dyed yarns to enable the yarns to be in a static state;
s2.2, creating a standard light environment suitable for acquiring image information in the area of the yarn of which the image information is to be acquired;
and S2.3, collecting image information of the yarns in a standard light environment.
CN202010386171.8A 2020-05-09 2020-05-09 Spray dyeing system and method Active CN111501243B (en)

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CN115538060A (en) * 2022-10-20 2022-12-30 诸暨逸绣科技有限公司 Yarn timely dyeing device and control method
CN115434054A (en) * 2022-10-28 2022-12-06 富尔美技术纺织(苏州)有限公司 Multicolor fiber uniform mixing processing technology

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