A high color fastness yarn piece dyeing device
By introducing structures such as a fixed seat, dyeing cylinder, annular tube, nozzle, and guide roller into the yarn dyeing device, the problems of uneven dyeing and dye waste are solved, and a highly efficient and energy-saving yarn dyeing process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGNAG SUNDELI DYEING & FINISHING
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-10
AI Technical Summary
Existing yarn dyeing equipment suffers from uneven dyeing, uneven heat dissipation, and the inability to recycle excess dye during the dyeing process, resulting in high costs and low efficiency.
A high color fastness yarn section dyeing device is designed, which adopts a fixed base and dyeing cylinder installed at the upper end of the box, with an internal cavity and annular pipe, equipped with nozzles and branch pipes, combined with a pump body and reflux valve to achieve uniform spraying and dye recycling at multiple positions, and ensures fixed-point cleaning of yarn through guide rollers and annular cleaning groove.
It achieves uniform dyeing of yarn at multiple locations, reduces dye waste, improves color fastness and efficiency, reduces costs, is highly adaptable, and is convenient to use in combination.
Smart Images

Figure CN224478235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of yarn dyeing, and more specifically, to a yarn section dyeing device with high color fastness. Background Technology
[0002] Yarn is a type of textile product made from various textile fibers processed into a certain fineness. It is used for weaving, rope making, thread making, knitting, and embroidery. Yarn is divided into short fiber yarn and continuous filament yarn. In the production and processing, yarn often needs to be dyed to obtain yarn of different colors.
[0003] The utility model patent with authorization announcement number CN 219137133 U relates to the field of yarn production technology and discloses a high color fastness yarn production spray dyeing equipment, including a spray dyeing box. The top of the spray dyeing box is equipped with a feeding pipe, and the bottom of the feeding pipe extends to a dye pool on one side inside the spray dyeing box. The dye pool is equipped with a stirring rod, and a liquid extraction pipe is installed on one side of the dye pool. In this high color fastness yarn production spray dyeing equipment, the stirring rod rotates inside the dye pool to avoid dye sedimentation inside the dye pool affecting the spray dyeing quality. The air generated by the rotation of the lower fan can blow the yarn, causing the dust on the surface of the yarn to fall off. Then the yarn passes through the brush inside the horizontal plate for further dust removal, so that the impurities on the surface of the yarn are thoroughly cleaned. The liquid extraction pipe extracts the dye from the dye pool and then sprays the yarn through the spray ring. At this time, the air generated by the rotation of the upper fan can air dry the sprayed yarn to prevent the dye on the surface of the yarn from sticking to other equipment during the transportation process.
[0004] The above-mentioned structure, by installing a material cylinder and a cleaning structure inside the box, enables the spraying operation after cleaning the yarn. However, the operation using a single spray ring is not only unfavorable for multiple spraying operations, affecting the uniformity and accuracy of heat dissipation, but also lacks a cavity to install the ring tube and branch tube. This not only makes it unfavorable for multi-position operation, but also makes it impossible to reuse the sprayed excess dye, resulting in serious waste and high cost, which needs to be improved. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a high color fastness yarn section dyeing device. By installing a fixed base and dyeing cylinder at the upper end of the box, an annular pipe and nozzle can be installed in the internal cavity, which is conducive to the uniform arrangement in multiple positions, facilitating the dyeing operation after threading and conveying. Excess dye can be stored in the cavity, which is conducive to returning to the box for reuse and avoiding waste. At the same time, by installing the main pipe and pump body through branch pipes, dye can be drawn in a unified manner and then distributed in branches, which is conducive to controllable use, highly adaptable, and convenient for combined use.
[0006] To solve the above problems, the present invention adopts the following technical solution.
[0007] A high color fastness yarn section dyeing device includes a housing. A protective cover is slidably mounted on one end surface of the housing. A fixed base is fixedly connected to the upper surface of the housing. A dyeing cylinder is fixedly connected to the upper end of the fixed base. The dyeing cylinder has an internal cavity with threading holes on both sides of the cavity. The threading holes are symmetrically distributed on both sides of the dyeing cylinder. An annular tube is fixedly connected to the inside of the cavity. A nozzle is fixedly connected to the outer surface of the annular tube. The nozzles are circumferentially distributed on the sides of the threading holes. A branch tube is fixedly connected to one side surface of the annular tube. The branch tube is fixedly connected to one side of the outer surface of the dyeing cylinder. A main pipe is fixedly connected to one end of the branch pipe. A pump body is fixedly mounted to one end of the main pipe. A return valve is fixedly connected to the other end of the main pipe. Both the pump body and the return valve are connected to the inside of the housing through pipes.
[0008] Furthermore, a reflux hole is provided at the lower end of the cavity, and the reflux hole is located at the lower end of the dyeing cylinder.
[0009] Furthermore, the mounting base has a connecting hole inside, which is aligned with the lower end of the return hole and connected to the upper end of the inner side of the housing.
[0010] Furthermore, the fixing base and dyeing cylinder are evenly arranged on the upper surface of the box, and the dyeing cylinder is coaxially distributed. Through the reflux hole set at the bottom of the cavity, combined with the connection hole set inside the fixing base, the collected dye can be returned to the inside of the box, which is conducive to mixing and reuse, reducing costs, and saving energy and efficiency.
[0011] Furthermore, a fixing frame is fixedly connected to the upper surface of the box, and a guide roller is rotatably installed at one end of the fixing frame.
[0012] Furthermore, the surface of the guide roller is provided with an annular cleaning groove, which is symmetrically distributed on both sides of the threading hole.
[0013] Furthermore, the fixing frames are located on both sides of the dyeing cylinder and symmetrically connected to both ends of the box. By installing guide rollers through the fixing frames and combining them with the annular cleaning grooves on the surface, the conveyed yarn can be backflowed and supported. The fixing frames can also be adjusted to limit the movement, prevent misalignment, facilitate fixed-point cleaning and maintenance, improve dyeing fastness, and facilitate combined use.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) This solution uses a fixed base and dyeing cylinder installed on the upper end of the box, and can install a ring pipe and nozzle in the internal cavity, which is conducive to the uniform arrangement of multiple positions, and facilitates the dyeing operation after threading and conveying. Excess dye can be stored in the cavity, which is conducive to the return to the box for use and avoids waste. At the same time, the main pipe and pump body are installed through the branch pipe, which can draw dye in a unified manner and then branch it out, which is conducive to control and use. It is highly adaptable and convenient for combined use.
[0016] (2) By setting a reflux hole at the bottom of the cavity and a connection hole inside the fixed seat, the collected dye can be returned to the inside of the box, which is conducive to mixing and reuse, reducing costs and saving energy.
[0017] (3) By installing guide rollers through fixed frames and combining them with the annular cleaning grooves on the surface, the conveyed yarn can be backflowed and supported. It can also be limited and adjusted to avoid offset and misalignment, facilitate fixed-point cleaning and maintenance, improve color fastness, and facilitate combined use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a cross-sectional schematic diagram of the dyeing cylinder of this utility model;
[0020] Figure 3 This is a partial cross-sectional view of the annular pipe connection of this utility model;
[0021] Figure 4 This is a partial structural diagram of the connection between the fixing base and the dyeing cylinder of this utility model;
[0022] Figure 5 This is a partial structural diagram of the connection between the main pipe and the pump body of this utility model.
[0023] Explanation of the labels in the diagram:
[0024] 1. Box body, 11. Protective cover, 12. Fixing base, 13. Dyeing cylinder, 14. Cavity, 15. Threading hole, 16. Annular pipe, 17. Nozzle, 18. Branch pipe, 2. Return hole, 21. Connection hole, 22. Main pipe, 23. Pump body, 24. Return valve, 25. Fixing frame, 26. Guide roller, 27. Annular cleaning groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1 , Figure 2 and Figure 5 A high-color-fastness yarn section dyeing device includes a housing 1. A protective cover 11 is slidably mounted on one end surface of the housing 1, and its position can be adjusted to facilitate isolation and protection, improving safety and stability. A fixing seat 12 is fixedly connected to the upper surface of the housing 1, and a dyeing cylinder 13 is fixedly connected to the upper end of the fixing seat 12. The dyeing cylinder 13 has a cavity 14 inside, and threading holes 15 are provided on both sides of the cavity 14. Yarn is passed through the threading holes 15 on both sides and transported through the cavity 14. Dye can be sprayed out inside for dyeing, and excess dye can be stored inside the cavity 14 to avoid overflow and waste, improving safety and stability. The evenly arranged multiple dyeing cylinders 14 can undergo multiple burning processes to improve dyeing depth and fastness, facilitating control. The threading holes 15 are symmetrically distributed on both sides of the dyeing cylinder 13. An annular tube 16 is fixedly connected inside the cavity 14, and a nozzle 17 is fixedly connected to the outer surface of the annular tube 16, which can spray evenly from multiple directions. The dyeing process allows for multi-angle dyeing of the yarn, ensuring uniformity and depth of immersion. It is also suitable for combined use. The nozzles 17 are circumferentially distributed on the side of the threading holes 15. A branch pipe 18 is fixedly connected to one side of the annular pipe 16, and the branch pipe 18 is fixedly connected to one side of the outer surface of the dyeing cylinder 13. One end of the branch pipe 18 is fixedly connected to a main pipe 22, and one end of the main pipe 22 is fixedly equipped with a pump body 23. The other end of the main pipe 22 is fixedly connected to a return valve 24. Both the pump body 23 and the return valve 24 are connected to the inside of the housing 1 via pipes. The pump body 23 draws and mixes the dye from inside the housing 1, which is then introduced into the main pipe 22 and into the branch pipe 18. After passing through the annular pipe 16, the dye is sprayed out from the nozzles 17, allowing for the dyeing of the yarn conveyed inside. The return valve 24 is manually controlled to return excess dye from the end of the main pipe 22 back into the housing 1, preventing over-spraying and overflow, improving safety and stability, facilitating adjustment, and offering high adaptability.
[0027] Please see Figure 2 and Figure 3The lower end of the cavity 14 is provided with a return hole 2, which is located at the lower end of the dyeing cylinder 13. The fixing seat 12 is provided with a connecting hole 21, which is aligned with the lower end of the return hole 2 and connected to the upper end of the box body 1. The fixing seat 12 and the dyeing cylinder 13 are evenly arranged on the upper surface of the box body 1 and are coaxially distributed. By setting the return hole at the bottom of the cavity and the connecting hole in the fixing seat, the collected dye can be returned to the box body, which is conducive to mixing and reuse, reducing costs, and saving energy and efficiency. When dyeing is sprayed by the nozzle 17, excess dye will not come into contact with the yarn and will enter the cavity 14 and collect. Then it can flow down into the box body 1 from the return hole 2 and the connecting hole 21 on the bottom plate. It can be collected and mixed for reuse, avoiding waste, reducing costs, and facilitating combined use.
[0028] Please see Figure 1 and Figure 4 A fixing frame 25 is fixedly connected to the upper surface of the box 1. A guide roller 26 is rotatably installed at one end of the fixing frame 25. The surface of the guide roller 26 is provided with an annular cleaning groove 27. The annular cleaning groove 27 is symmetrically distributed on both sides of the thread hole 15. The fixing frame 25 is located on both sides of the dyeing cylinder 13 and is symmetrically connected to both ends of the box 1. By installing the guide roller through the fixing frame and combining it with the annular cleaning groove on the surface, the conveyed yarn can be backflowed and supported. It can also be limited and adjusted to avoid deviation and misalignment, facilitate fixed-point cleaning and maintenance, improve dyeing fastness, and facilitate combined use.
[0029] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.
Claims
1. A high color fastness yarn section dyeing device, comprising a housing (1), wherein a protective cover (11) is slidably mounted on one end surface of the housing (1), and a fixing seat (12) is fixedly connected to the upper surface of the housing (1), characterized in that: A dyeing cylinder (13) is fixedly connected to the upper end of the fixed base (12). The dyeing cylinder (13) has a cavity (14) inside. Threading holes (15) are provided on both sides of the cavity (14). The threading holes (15) are symmetrically distributed on both sides of the dyeing cylinder (13). An annular tube (16) is fixedly connected inside the cavity (14). A nozzle (17) is fixedly connected to the outer surface of the annular tube (16). The nozzle (17) is circumferentially distributed around the threading holes (15). On the side, a branch pipe (18) is fixedly connected to one side surface of the annular pipe (16). The branch pipe (18) is fixedly connected to one side of the outer surface of the dyeing cylinder (13). One end of the branch pipe (18) is fixedly connected to a main pipe (22). One end of the main pipe (22) is fixedly installed with a pump body (23). The other end of the main pipe (22) is fixedly connected with a return valve (24). The pump body (23) and the return valve (24) are both connected to the inside of the box (1) through pipes.
2. The high color fastness yarn section dyeing device according to claim 1, characterized in that: The cavity (14) has a reflux hole (2) at its lower interior end, and the reflux hole (2) is located at the lower interior end of the dyeing cylinder (13).
3. The high color fastness yarn section dyeing device according to claim 1, characterized in that: The fixed base (12) has a connecting hole (21) inside. The connecting hole (21) is aligned with the lower end of the return hole (2) and connected to the upper end of the inner part of the box (1).
4. The high color fastness yarn section dyeing device according to claim 1, characterized in that: The fixing seat (12) and the dyeing cylinder (13) are evenly arranged on the upper surface of the box (1), and the dyeing cylinder (13) is coaxially distributed.
5. The high color fastness yarn section dyeing device according to claim 1, characterized in that: A fixing frame (25) is fixedly connected to the upper surface of the box (1), and a guide roller (26) is rotatably installed at one end of the fixing frame (25).
6. The high color fastness yarn section dyeing device according to claim 5, characterized in that: The surface of the guide roller (26) is provided with an annular cleaning groove (27), which is symmetrically distributed on both sides of the thread hole (15).
7. A high color fastness yarn section dyeing device according to claim 5, characterized in that: The fixing frame (25) is located on both sides of the dyeing cylinder (13) and is symmetrically connected to both ends of the box body (1).