A color spinning yarn leakage-proof dyeing mold

Abstract

The invention discloses a color spinning yarn leakage-proof dyeing mold, comprising a dyeing box, a color matching mechanism is arranged on the top of the dyeing box, a dye collecting box is arranged on the bottom of the dyeing box, a first traction roller group, a color spraying mechanism, a dipping mold, a drying mechanism and a second traction roller group are arranged in sequence in the horizontal direction in the dyeing box, the color spraying mechanism comprises a first annular nozzle, a second annular nozzle and a third annular nozzle arranged in sequence in the horizontal direction, the dipping mold comprises a mold base, and a U-shaped dipping cavity is built in the mold base; the technical key points are: the yarn is dyed for the first time by the color spraying mechanism, and the dyeing method is spraying coloring; the yarn is dyed for the second time by the dipping mold, and the dyed yarn is heated and dried by a drying box; the color is adjusted by controlling the ratio of three primary color dyeing liquids, and the original dyeing liquid color is replaced under the drive of a pump body, so that the color change is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of colored spun yarn dyeing, in particular to a colored spun yarn leakage-proof dyeing mould. Background Art

[0002] Color spun yarn is made by first dyeing the fiber into colored fiber, and then fully mixing two or more fibers of different colors and spinning them into yarn with a unique mixed color effect. Color spun yarn can achieve a hazy three-dimensional effect and texture that cannot be achieved by white blank dyeing. Color spun yarn is pollution-free to use and can control color difference to the greatest extent. It is increasingly used in mid- to high-end clothing products.

[0003] The existing dyeing method of colored spinning yarn is: the yarns to be dyed are piled together and then dyed at the same time. Whitening phenomenon is easy to occur during the dyeing process. After dyeing, they need to be dehydrated and dried separately, which is inconvenient for subsequent yarn finishing.

[0004] The color of the dye in the dyeing process is determined in advance, and the color of the dye cannot be flexibly adjusted during the dyeing process, and the color change is inconvenient, so it is not suitable for dyeing colored yarn. Summary of the invention

[0005] Technical issues solved:

[0006] In view of the deficiencies in the prior art, the present invention provides a color spun yarn leakage-proof dyeing mold, in which the yarn is dyed for the first time by a spraying mechanism, and the dyeing method is spray dyeing; the yarn is dyed for the second time by a dip dyeing mold, and the dyed yarn is heated and dried in a drying box; the color adjustment is achieved by controlling the ratio of the three primary color dye solutions, and the original dye solution color is replaced under the drive of a pump body, so the color change is convenient, which solves the technical problems mentioned in the background technology.

[0007] Technical solution:

[0008] To achieve the above object, the present invention is implemented through the following technical solutions:

[0009] A color spinning yarn leakage-proof dyeing mold comprises a dyeing box, a color matching mechanism is arranged on the top of the dyeing box, a dye collecting box is arranged on the bottom of the dyeing box, a first traction roller group, a color spraying mechanism, a dipping mold, a drying mechanism and a second traction roller group are arranged in sequence in the horizontal direction in the dyeing box, the color spraying mechanism comprises a first annular nozzle, a second annular nozzle and a third annular nozzle arranged in sequence in the horizontal direction, the dipping mold comprises a mold base, a U-shaped dipping cavity is built in the mold base, a first yarn inlet and a first yarn outlet are respectively opened on both sides of the upper end of the mold base, a second material level sensor is arranged on the outer side of the mold base, the dipping mold is used for dipping yarn, and the yarn enters through the first yarn inlet, passes through the dipping cavity and then extends out through the first yarn outlet, the first traction roller group is located at the yarn feeding end, and the second traction roller group is located at the yarn discharging end.

[0010] In a possible implementation, multiple groups of nozzles are provided on the inner side surfaces of the first annular nozzle, the second annular nozzle and the third annular nozzle, and the multiple groups of nozzles are evenly spaced along the circumferential direction of the first annular nozzle, the second annular nozzle and the third annular nozzle, and the first annular nozzle, the second annular nozzle and the third annular nozzle are connected through the first dye inlet pipe, and the first annular nozzle, the second annular nozzle and the third annular nozzle constitute three groups of nozzles with an annular structure, and the three groups of nozzles with an annular structure form an annular spraying channel.

[0011] In a possible implementation, a first rotating shaft is provided at the first yarn inlet, a second rotating shaft is provided at the first yarn outlet, and a third rotating shaft and a fourth rotating shaft are provided on the inner wall of the dyeing chamber. The first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are respectively provided at the corners to play a transition role and prevent the corner structure from wearing the yarn.

[0012] In a possible implementation, a second dye inlet pipe and a dye discharge pipe are provided on the mold base, the dye discharge pipe is configured as a three-way structure, the dye discharge pipe is connected to the dyeing chamber, the second dye inlet pipe is connected to the dyeing chamber, a discharge pipe is provided on one side of the dye collecting box, and the color-matched dye liquid enters the color spraying mechanism and the dyeing mold under the drive of the pump body, the new dye liquid squeezes out and replaces the original dye liquid, and the original dye liquid is discharged to the dye collecting box through the dye discharge pipe.

[0013] In one possible implementation, the drying mechanism includes a drying box, which is provided with an electric socket, and electric heating tubes are fixedly provided on the inner walls of the upper and lower ends of the drying box. The drying box is used to dry the yarn, and the dyed yarn is heated and dried to remove moisture when moving inside the drying box.

[0014] In a possible implementation, a second yarn inlet is provided on one side of the drying box, and a second yarn outlet is provided on the other side of the drying box. A first guiding sleeve is provided on the inner side surface of the second yarn inlet, and a second guiding sleeve is provided on the inner side surface of the second yarn outlet. Fifth rotating shafts are provided at both the second yarn inlet and the second yarn outlet. The fifth rotating shafts play a role in transition to prevent the corner structure from wearing the yarn and protect the yarn. The first guiding sleeve and the second guiding sleeve limit and guide the yarn.

[0015] In a possible implementation, the first traction roller group includes a first transition roller, a second transition roller, and a first tensioning roller assembly, and the first transition roller and the second transition roller are located on both sides of the first tensioning roller assembly. The second traction roller group includes a third transition roller, a fourth transition roller, and a second tensioning roller assembly, and the third transition roller and the fourth transition roller are located on both sides of the second tensioning roller assembly.

[0016] In a possible implementation, both the first tensioning roller assembly and the second tensioning roller assembly include electric cylinders. One end of the push rod of the electric cylinder is connected to a pressure sensor, the pressure sensor is connected to a driving seat, and a roller body is rotatably provided on the driving seat. The tightness of the yarn is automatically adjusted by the first tensioning roller assembly and the second tensioning roller assembly.

[0017] In a possible implementation, the color matching mechanism includes a first dye storage tank, a second dye storage tank, a third dye storage tank, a mixing tank, and a feeding pump body. First level sensors and feeding pipes are provided on the tops of the first dye storage tank, the second dye storage tank, and the third dye storage tank. Color mixing is achieved by controlling the mixing ratio of the three primary color dye solutions.

[0018] In a possible implementation, metering pump assemblies are provided at the bottoms of the first dye storage tank, the second dye storage tank, and the third dye storage tank. The metering pump assemblies are connected to the mixing tank through dispensing hoses. One end of the feeding pump body is connected to the mixing tank through a first feeding pipeline. The other end of the feeding pump body is connected to the color spraying mechanism and the dipping die through a second feeding pipeline. A valve is provided on the branch pipeline between the second feeding pipeline and the dipping die. The dyestuff after color matching is stored in the mixing tank and replaces the original dyestuff color under the drive of the pump body to achieve color change.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The present invention performs the first dyeing of the yarn by a spraying mechanism, the dyeing method is spray dyeing, and performs the second dyeing of the yarn by a dip dyeing mold, the yarn after spray dyeing is dip dyed again, and the dip dyeing mold can automatically replenish the dye solution to prevent leakage of dyeing. When the dyed yarn moves inside the drying box, it is heated and dried to remove moisture, and there is no need to dehydrate and spin dry separately, which is beneficial to the subsequent winding of the yarn.

[0021] 2. The present invention realizes color matching by controlling the ratio of the three primary color dye solutions, and can obtain dye solutions of various required colors. The dye solutions after color matching are stored in a mixing box, and the original dye solution color is replaced under the drive of the pump body, which is convenient for color change and dyeing of colored appearance colored yarns. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the color spraying mechanism of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the dip-dyeing mold of the present invention;

[0026] Figure 4 It is a cross-sectional view of the impregnation mold of the present invention;

[0027] Figure 5 It is a schematic diagram of the use of the dip-dyeing mold of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the first tensioning roller assembly and the second tensioning roller assembly of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the drying mechanism of the present invention;

[0030] Figure 8 It is a schematic diagram of the top view structure of the color matching mechanism of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the color matching mechanism of the present invention when viewed from the bottom;

[0032] Fig.10 It is a schematic diagram of the connection between the color matching mechanism, the color spraying mechanism and the dyeing mold of the present invention.

[0033] In the figure: 1, dyeing box; 2, color matching mechanism; 3, dye collection box; 4, first traction roller group; 5, color spraying mechanism; 6, dipping mold; 7, drying mechanism; 8, second traction roller group; 21, first dye storage box; 22, second dye storage box; 23, third dye storage box; 24, mixing box; 25, feeding pump body; 26, batching hose; 27, first feed pipeline; 28, second feed pipeline; 29, quantitative pump assembly; 211, first material level sensor; 212, feeding pipe; 281, valve; 31, discharge pipe; 41, first transition roller; 42, second transition roller; 43, first tensioning roller assembly; 51, first annular nozzle; 52, second annular nozzle; 53, third annular nozzle; 54, first dye Material inlet pipe; 511, nozzle; 61, mold base; 62, second dye inlet pipe; 63, dye discharge pipe; 64, second material level sensor; 611, first yarn inlet; 612, first rotating shaft; 613, first yarn outlet; 614, second rotating shaft; 615, dyeing chamber; 616, third rotating shaft; 617, fourth rotating shaft; 71, drying box; 72, power socket; 73, electric heating pipe; 74, first guide sleeve; 75, second guide sleeve; 711, second yarn inlet; 712, second yarn outlet; 713, fifth rotating shaft; 81, third transition roller; 82, fourth transition roller; 83, second tensioning roller assembly; 831, electric cylinder; 832, pressure sensor; 833, drive seat; 834, roller body. DETAILED DESCRIPTION

[0034] The embodiment of the present application provides a color spun yarn leakage-proof dyeing mold, which performs the first dyeing of the yarn through a spraying mechanism, and the dyeing method is spray dyeing. The yarn is dyed a second time through an immersion dyeing mold, and the dyed yarn is heated and dried in a drying box. The color adjustment is achieved by controlling the ratio of the three primary color dye solutions, and the original dye solution color is replaced under the drive of the pump body, which makes color change convenient and solves the technical problems mentioned in the background technology.

[0035] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0036] Embodiment 1:

[0037] See also Figure 1-10The present invention provides a technical solution: a color spinning yarn leakage-proof dyeing mold, comprising a dyeing box 1, a color matching mechanism 2 is arranged on the top of the dyeing box 1, a dye collecting box 3 is arranged on the bottom of the dyeing box 1, a first traction roller group 4, a color spraying mechanism 5, a dipping mold 6, a drying mechanism 7 and a second traction roller group 8 are arranged in sequence in the horizontal direction in the dyeing box 1, the color spraying mechanism 5 includes a first annular nozzle 51, a second annular nozzle 52 and a third annular nozzle 53 arranged in sequence in the horizontal direction, the dipping mold 6 includes a mold base 61, the mold base 61 has a U-shaped dipping cavity 615 built in, the two sides of the upper end of the mold base 61 are respectively provided with a first yarn inlet 611 and a first yarn outlet 613, a second material level sensor 64 is arranged on the outer side of the mold base 61, the dipping mold 6 is used for dipping yarn, and the yarn enters through the first yarn inlet 611, passes through the dipping cavity 615 and then extends out through the first yarn outlet 613.

[0038] Among them, the first traction roller group 4 is located at the yarn feeding end, and the second traction roller group 8 is located at the yarn discharging end. The yarn is wound on the first traction roller group 4, and then passes through the spraying mechanism 5, the dyeing mold 6 and the drying mechanism 7, and finally wound on the second traction roller group 8. The first traction roller group 4 is connected to the yarn feeding roller group, and the second traction roller group 8 is connected to the yarn winding roller group. The yarn is guided, pulled and tensioned by the first traction roller group 4 and the second traction roller group 8 to improve the stability of the yarn dyeing process.

[0039] In some examples, multiple groups of nozzles 511 are provided on the inner side surfaces of the first annular nozzle 51, the second annular nozzle 52 and the third annular nozzle 53, and the multiple groups of nozzles 511 are evenly distributed along the circumferential direction of the first annular nozzle 51, the second annular nozzle 52 and the third annular nozzle 53, and the first annular nozzle 51, the second annular nozzle 52 and the third annular nozzle 53 are connected through the first dye inlet pipe 54, and the multiple groups of nozzles 511 all point to the center direction of the annular nozzle.

[0040] The yarn is first dyed by the spraying mechanism 5, and the dyeing method is spray dyeing;

[0041] The first annular nozzle 51, the second annular nozzle 52 and the third annular nozzle 53 constitute three groups of annular structured nozzles, which form an annular spray-dyeing channel. The dye is sprayed out in a mist form through multiple groups of nozzles 511. When the yarn moves in the spray-dyeing channel, the misted dye is sprayed onto the surface of the yarn for coloring, thereby achieving spray-dyeing. The three groups of nozzles extend the length of the spray-dyeing channel, thereby improving the uniformity of the spray-dyeing and the coloring effect of the yarn, thereby preventing the occurrence of dye leakage.

[0042] The yarn is dyed for the second time through the dyeing mold 6, and the dyeing method is dip dyeing;

[0043] like Figure 5As shown, the yarn enters through the first yarn inlet 611, passes through the dyeing chamber 615, and then extends out through the first yarn outlet 613. The yarn is in a U-shaped structure and moves along the U-shaped dyeing chamber 615;

[0044] The U-shaped dyeing chamber 615 is pre-filled with dye, and the dye liquid level is above the bottom of the dyeing chamber 615. When the yarn moves along the U-shaped dyeing chamber 615, the yarn passes through the bottom of the dyeing chamber 615 and is immersed in the dye liquid. During the movement of the yarn, the yarn is continuously dyed and colored, and the dyed yarn is moved out through the first yarn outlet 613.

[0045] A valve 281 is provided on the branch pipeline between the second material delivery pipeline 28 and the dyeing mold 6. When the dyeing liquid in the dyeing chamber 615 is sufficient, the valve 281 is closed. When the dyeing liquid in the dyeing chamber 615 is insufficient, the valve 281 is opened.

[0046] The second material level sensor 64 monitors the dye liquid level inside the dyeing chamber 615 in real time. When the dye liquid level is insufficient, the valve 281 is opened. When the feeding pump body 25 delivers the dye liquid to the spray mechanism 5, a part of the dye liquid will be diverted to the dyeing mold 6 through the pipeline for replenishment until the dye liquid level returns to a normal range. After the replenishment is completed, the valve 281 is closed to prevent leakage of dyeing through automatic replenishment.

[0047] In some examples, a first rotating shaft 612 is disposed at the first yarn inlet 611 , a second rotating shaft 614 is disposed at the first yarn outlet 613 , and a third rotating shaft 616 and a fourth rotating shaft 617 are disposed on the inner wall of the dyeing chamber 615 .

[0048] Among them, the mold base 61 of the dyeing mold 6 is provided with a first rotating shaft 612, a second rotating shaft 614, a third rotating shaft 616 and a fourth rotating shaft 617. The first rotating shaft 612, the second rotating shaft 614, the third rotating shaft 616 and the fourth rotating shaft 617 are respectively arranged at the corners, which play a transition role, prevent the corner structure from wearing the yarn, protect the yarn, and thus improve the dyeing quality.

[0049] In some examples, a second dye inlet pipe 62 and a dye discharge pipe 63 are provided on the mold base 61. The dye discharge pipe 63 is configured as a three-way structure. The dye discharge pipe 63 is connected to the dyeing chamber 615. The second dye inlet pipe 62 is connected to the dyeing chamber 615. A discharge pipe 31 is provided on one side of the dye collecting box 3.

[0050] Among them, when the color of the dye liquid needs to be changed, the color matching is carried out through the color matching mechanism 2. After the color matching is completed, the valve 281 is opened, and the color-matched dye liquid enters the color spraying mechanism 5 and the dyeing mold 6 under the drive of the feeding pump body 25. The new dye liquid squeezes out and replaces the original dye liquid. The dye liquid inside the dyeing chamber 615 is discharged to the dye collecting box 3 through the dye discharge pipe 63, thereby realizing the rapid replacement of the color of the dye liquid inside the dyeing chamber 615, and the same batch of yarns can be dyed with multiple colors.

[0051] In some examples, the drying mechanism 7 includes a drying box 71, on which an electric socket 72 is provided, and electric heating pipes 73 are fixedly provided on the inner walls of the upper and lower ends of the drying box 71, and the drying box 71 is used to dry the yarn.

[0052] The electric socket 72 is connected to an external power source, and the electric heating tube 73 is energized to heat the air. When the dyed yarn moves inside the drying box 71, it is heated and dried to remove moisture.

[0053] In some examples, a second yarn inlet 711 is opened on one side of the drying box 71, and a second yarn outlet 712 is opened on the other side of the drying box 71. A first guide sleeve 74 is arranged on the inner side surface of the second yarn inlet 711, and a second guide sleeve 75 is arranged on the inner side surface of the second yarn outlet 712. A fifth rotating shaft 713 is arranged at both the second yarn inlet 711 and the second yarn outlet 712.

[0054] Among them, the fifth rotating shaft 713 plays a transition role to prevent the corner structure from wearing the yarn and protect the yarn. The first guide sleeve 74 and the second guide sleeve 75 limit and guide the yarn to facilitate subsequent winding.

[0055] In some examples, the first traction roller group 4 includes a first transition roller 41, a second transition roller 42 and a first tensioning roller assembly 43, and the first transition roller 41 and the second transition roller 42 are located on both sides of the first tensioning roller assembly 43, and the second traction roller group 8 includes a third transition roller 81, a fourth transition roller 82 and a second tensioning roller assembly 83, and the third transition roller 81 and the fourth transition roller 82 are located on both sides of the second tensioning roller assembly 83.

[0056] In some examples, the first tensioning roller assembly 43 and the second tensioning roller assembly 83 both include an electric cylinder 831 , one end of a push rod of the electric cylinder 831 is connected to a pressure sensor 832 , the pressure sensor 832 is connected to a drive seat 833 , and a roller body 834 is rotatably disposed on the drive seat 833 .

[0057] The first traction roller group 4 monitors the tightness of the yarn in real time through the first tension roller assembly 43, and the second traction roller group 8 monitors the tightness of the yarn in real time through the second tension roller assembly 83, and automatically adjusts the tightness of the yarn.

[0058] The yarn tightness can be adjusted by:

[0059] The pressure sensor 832 monitors the pressure transmitted by the roller body 834 and the drive seat 833 in real time. The pressure value is proportional to the tightness of the yarn. The larger the pressure value, the tighter the yarn, and the smaller the pressure value, the looser the yarn. The extension and retraction of the electric cylinder 831 is controlled according to the pressure value, and the axial position of the roller body 834 is adjusted. When the yarn is too loose, the roller body 834 is controlled to move down to tighten it. When the yarn is too tight, the roller body 834 is controlled to move up to relax it, so that the tightness of the yarn is always within the normal range during the movement.

[0060] By adopting the above technical solution:

[0061] The yarn is dyed for the first time by the spraying mechanism 5, and the dyeing method is spraying. The yarn is dyed for the second time by the dip-dyeing mold 6, and the dyeing method is dip-dyeing. The yarn after spraying is dip-dyeed again, and the dip-dyeing mold 6 can automatically replenish the dye liquid to prevent leakage of dyeing.

[0062] When the dyed yarn moves inside the drying box 71, it is heated and dried to remove moisture, and there is no need to perform dehydration and spin drying separately, which is beneficial to the subsequent winding of the yarn.

[0063] Embodiment 2:

[0064] Based on Example 1, this example introduces the specific structure of a color matching mechanism 2 in a color spinning leakage-proof dyeing mold. The color matching mechanism 2 includes a first dye storage box 21, a second dye storage box 22, a third dye storage box 23, a mixing box 24 and a feeding pump body 25. The tops of the first dye storage box 21, the second dye storage box 22 and the third dye storage box 23 are all provided with a first material level sensor 211 and a feeding pipe 212.

[0065] The first dye storage box 21 , the second dye storage box 22 and the third dye storage box 23 respectively store three primary color dye solutions. By controlling the ratio of the three primary color dye solutions, color adjustment can be achieved to obtain dye solutions of various required colors. The dye solutions after color matching are stored in the mixing box 24 .

[0066] The first material level sensor 211 monitors the material level of the dye solution in the first dye storage box 21 , the second dye storage box 22 , and the third dye storage box 23 in real time. When the material level is insufficient, material is added in time through the feeding pipe 212 .

[0067] In some examples, a metering pump assembly 29 is provided at the bottom of the first dye storage tank 21, the second dye storage tank 22 and the third dye storage tank 23, the metering pump assembly 29 is connected to the mixing box 24 through a metering hose 26, one end of the feeding pump body 25 is connected to the mixing box 24 through a first feeding pipeline 27, the other end of the feeding pump body 25 is connected to the spraying mechanism 5 and the dyeing mold 6 through a second feeding pipeline 28, and a valve 281 is provided on the branch pipeline between the second feeding pipeline 28 and the dyeing mold 6.

[0068] Among them, during normal operation, a dye liquid of a certain color is prepared by the color matching mechanism 2, and the dye liquid is stored in the mixing box 24. When the feeding pump body 25 is working, the dye liquid is respectively sent to the color spraying mechanism 5 and the dipping mold 6 for dyeing. It should be particularly noted that the dye liquid is continuously sent to the color spraying mechanism 5 by the feeding pump body 25 for continuous spraying. When the dye liquid level in the dipping chamber 615 of the dipping mold 6 is insufficient, the valve 281 is opened, and the dye liquid is diverted for replenishment. After the replenishment is completed, the valve 281 is closed. When the color of the dye liquid needs to be changed, the original dye liquid in the mixing box 24 is discharged, and a new dye liquid is prepared by the color matching mechanism 2. The valve 281 is opened, and the new dye liquid is re-supplemented to the color spraying mechanism 5 and the dipping mold 6, and the original dye liquid is squeezed out for replacement. The original dye liquid in the dipping chamber 615 is squeezed out to the dye discharge pipe 63 and discharged through the dye discharge pipe 63, so as to realize the replacement of the dye liquid in the dye discharge pipe 63, and the color change is convenient.

[0069] By adopting the above technical solution:

[0070] By controlling the ratio of the three primary color dyeing solutions, color matching can be achieved, and dyeing solutions of various desired colors can be obtained. The dyeing solutions after color matching are stored in the mixing box 24, and the original dyeing solution color is replaced under the drive of the pump body, which is convenient for color change and dyeing of colored appearance colored yarn.

[0071] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A dyeing mold for preventing leakage of colored spinning yarn, comprising a dyeing box (1), characterized in that: The dyeing box (1) is provided with a color matching mechanism (2) at the top, and a dye collecting box (3) is provided at the bottom of the dyeing box (1). A first traction roller group (4), a color spraying mechanism (5), a dyeing mold (6), a drying mechanism (7) and a second traction roller group (8) are arranged in sequence in the horizontal direction in the dyeing box (1). The color spraying mechanism (5) comprises a first annular nozzle (51), a second annular nozzle (52) and a third annular nozzle (53) arranged in sequence in the horizontal direction. The dyeing mold (6) comprises a mold base (61), and a U-shaped dyeing cavity (615) is built in the mold base (61). A first yarn inlet (611) and a first yarn outlet (613) are respectively provided on both sides of the upper end of the mold base (61). A second material level sensor (64) is provided on the outer side of the mold base (61). The dyeing mold (6) is used for dyeing yarn, and the yarn enters through a first yarn inlet (611), passes through a dyeing chamber (615), and then extends out through a first yarn outlet (613). A first rotating shaft (612) is provided at the first yarn inlet (611), and a second rotating shaft (614) is provided at the first yarn outlet (613). A third rotating shaft (616) and a fourth rotating shaft (617) are provided on the inner wall of the dyeing chamber (615). A second dye inlet pipe (62) and a dye discharge pipe (63) are provided on the mold base (61). The dye discharge pipe (63) is configured as a three-way structure. The dye discharge pipe (63) is connected to the dyeing chamber (615), and the second dye inlet pipe (62) is connected to the dyeing chamber (615). A discharge pipe (31) is provided on one side of the dye collecting box (3).

2. A color spinning yarn leakage-proof dyeing mold according to claim 1, characterized in that: A plurality of groups of nozzles (511) are arranged on the inner side surfaces of the first annular nozzle (51), the second annular nozzle (52) and the third annular nozzle (53); the plurality of groups of nozzles (511) are evenly spaced along the circumferential direction of the first annular nozzle (51), the second annular nozzle (52) and the third annular nozzle (53); and the first annular nozzle (51), the second annular nozzle (52) and the third annular nozzle (53) are connected via a first dye inlet pipe (54).

3. A color spinning yarn leakage-proof dyeing mold according to claim 1, characterized in that: The drying mechanism (7) comprises a drying box (71), the drying box (71) being provided with an electric socket (72), and electric heating pipes (73) being fixedly provided on the inner walls at both upper and lower ends of the drying box (71), and the drying box (71) is used for drying yarn.

4. A color spinning yarn leakage-proof dyeing mold according to claim 3, characterized in that: A second yarn inlet (711) is provided on one side of the drying box (71), and a second yarn outlet (712) is provided on the other side of the drying box (71); a first guide sleeve (74) is provided on the inner side surface of the second yarn inlet (711), and a second guide sleeve (75) is provided on the inner side surface of the second yarn outlet (712); and a fifth rotating shaft (713) is provided at both the second yarn inlet (711) and the second yarn outlet (712).

5. The color spinning yarn leakage-proof dyeing mold according to claim 1, characterized in that: The first traction roller group (4) comprises a first transition roller (41), a second transition roller (42) and a first tension roller assembly (43), and the first transition roller (41) and the second transition roller (42) are located on both sides of the first tension roller assembly (43); the second traction roller group (8) comprises a third transition roller (81), a fourth transition roller (82) and a second tension roller assembly (83), and the third transition roller (81) and the fourth transition roller (82) are located on both sides of the second tension roller assembly (83).

6. A color spinning yarn leakage-proof dyeing mold according to claim 5, characterized in that: The first tensioning roller assembly (43) and the second tensioning roller assembly (83) both comprise an electric cylinder (831), one end of a push rod of the electric cylinder (831) being connected to a pressure sensor (832), the pressure sensor (832) being connected to a drive seat (833), and a roller body (834) being rotatably disposed on the drive seat (833).

7. The color spinning yarn leakage-proof dyeing mold according to claim 1, characterized in that: The color matching mechanism (2) comprises a first dye storage box (21), a second dye storage box (22), a third dye storage box (23), a mixing box (24) and a feeding pump body (25); the tops of the first dye storage box (21), the second dye storage box (22) and the third dye storage box (23) are each provided with a first material level sensor (211) and a feeding pipe (212).

8. A color spinning yarn leakage-proof dyeing mold according to claim 7, characterized in that: A metering pump assembly (29) is disposed at the bottom of each of the first dye storage tank (21), the second dye storage tank (22) and the third dye storage tank (23); the metering pump assembly (29) is connected to the mixing tank (24) via a metering hose (26); one end of the feeding pump body (25) is connected to the mixing tank (24) via a first feeding pipeline (27); the other end of the feeding pump body (25) is connected to the spray mechanism (5) and the dyeing mold (6) via a second feeding pipeline (28); a valve (281) is disposed on the branch pipeline between the second feeding pipeline (28) and the dyeing mold (6).

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