Air-permeable POY colored yarn dope coloring device

Abstract

This invention addresses the issue that existing mixing devices are mostly designed for short filament mixing and are often unsuitable for continuous production of long filaments, especially for POY pre-oriented yarns. To enable continuous spinning of colored yarns from spinning dope, a dope mixing and coloring device is needed. Therefore, a breathable POY colored yarn dope coloring device is designed, comprising: a textile dope pipe and a coloring liquid pipe; a first solenoid valve is installed on the textile dope pipe, and a mixing section is installed at the output port; a branch of the mixing section is connected to the coloring liquid pipe; the first port of the mixing section is connected to the textile dope pipe, and a dynamic mixing pipe is installed at the second port; a bend is installed at the output port of the dynamic mixing pipe, and a drive source for the dynamic mixing pipe is installed below the bend, providing power to the mixing mechanism inside the dynamic mixing pipe; a second solenoid valve is installed at the output end of the bend.

Description

Technical Field

[0001] This utility model relates to the field of chemical fiber production mixing, specifically to a breathable POY dyeing device for dyeing raw materials. Background Technology

[0002] POY pre-oriented yarn is a semi-finished product in the spinning process of chemical fibers (such as polyester and nylon). It is a tow of yarn that has just been ejected from the spinneret and has been wound and stretched at a certain speed, but has not yet been fully stretched and shaped. It has relatively low strength and high elongation. Its structure is unstable and cannot be used directly for weaving. It needs to be processed into finished yarn through subsequent stretch deformation (DTY) or stretch twisting (DT) processes. Colored yarn refers to chemical fiber filaments or staple fibers that have already been colored during the fiber production process.

[0003] Chinese Patent Publication No. CN218491994U discloses a solution dyeing device for polyester covered yarn production, including a base plate. A first dyeing chamber and a second dyeing chamber are disposed on the top of the base plate, with the second dyeing chamber located to the right of the first dyeing chamber. The first dyeing chamber contains a hydraulic cylinder, a motor, a collection tank, a second limiting post, and a dye storage mechanism. The second dyeing chamber contains a stirring mechanism, a fixing mechanism, and a temperature control component. A temperature controller is fixedly connected to the outer surface of the second dyeing chamber. This invention has at least the following advantages: the presence of two dyeing chambers ensures dyeing quality and allows for thorough dyeing of the polyester covered yarn; the collection tank avoids dye waste and reduces production costs; and the temperature controller and temperature control component in the second dyeing chamber provide an optimal dyeing temperature range.

[0004] However, its drawback is that it requires placing the yarn spools wrapped with polyester-coated yarn one by one into different fixed frames. This dyeing method is not suitable for the continuous production requirements of POY pre-oriented yarn. Summary of the Invention

[0005] This invention addresses the fact that existing mixing devices are mostly designed for short filament mixing and are often unsuitable for continuous production of long filaments, especially for POY pre-oriented yarns. In order to continuously spin colored yarns from spinning dope, a dope mixing and coloring device is needed, and a breathable POY colored yarn dope coloring device has been designed.

[0006] A breathable POY dyeing device includes: a textile dyeing solution tube and a dyeing solution tube;

[0007] A first solenoid valve is installed on the textile raw material pipe, and a mixing pipe section is installed on the output port; the branch of the mixing pipe section is connected to the dyeing liquid pipe; the first port of the mixing pipe section is connected to the textile raw material pipe, and a dynamic mixing pipe is installed on the second port.

[0008] The output port of the dynamic mixing tube is equipped with a bend, and the drive source of the dynamic mixing tube is located below the bend. The drive source provides power to the mixing mechanism inside the dynamic mixing tube.

[0009] A second solenoid valve is installed at the output end of the bend.

[0010] Unlike the mixing method of static buckets, this application adopts a simultaneous input and output method, which enables continuous coloring and avoids the time gaps caused by material transfer in static bucket mixing. This is also more conducive to automated processing and production.

[0011] Static tank mixing involves introducing textile raw material and dyeing liquid into a tank for mixing, and then outputting it from the discharge port to a transfer container or directly to the textile machine. However, the dyeing device of this application continuously mixes the textile raw material and dyeing liquid evenly in a dynamic mixing tube and continuously inputs it into the textile machine.

[0012] The drive source is generally an electric motor. For different specifications of motors, those skilled in the art can adjust them according to production needs.

[0013] Preferably, at least two elongated observation windows are provided on the side of the dynamic mixing tube.

[0014] Preferably, the structure of the mixing mechanism includes: a rotating shaft coaxial with the dynamic mixing tube, and a bracket disposed inside the dynamic mixing tube for fixing the rotating shaft;

[0015] Several stirring rods are arranged in a spiral pattern on the rotating shaft, with equal spacing between the stirring rods;

[0016] The helix angle is at least 360°.

[0017] All stirring rods are designed to run through the central axis of the rotating shaft and be symmetrical about the central axis, with gaps in the axial direction, which is beneficial for repeated stirring of liquid.

[0018] Preferably, the structure of the mixing mechanism includes: a rotating shaft coaxial with the dynamic mixing tube, and a bracket disposed inside the dynamic mixing tube for fixing the rotating shaft;

[0019] A stirring blade is placed on the rotating shaft, and the stirring blade rotates symmetrically about the rotating shaft as the center.

[0020] The shaft uses a coaxial bidirectional shaft, and a gearbox is set between the drive source and the shaft to convert the single-phase input to a coaxial bidirectional input;

[0021] The shaft of the bidirectional rotating shaft has at least one ring of stirring blades.

[0022] Two rings of stirring blades are provided on one of the rotating shafts, and the two rings of stirring blades overlap in the vertical projection.

[0023] A scraper is provided on the outer edge of the stirring blade, and the scraper connects two sets of stirring blades.

[0024] As a preferred embodiment, the mixing mechanism also has a variant structure: based on the coaxial bidirectional rotating shaft, the scraper contains a metal skeleton, and the metal skeleton is fixed or integrally formed with the stirring blades. In this way, one of the two rings of stirring blades (the first ring and the second ring) can be modified to be hinged to the coaxial bidirectional rotating shaft, while the other ring remains fixed.

[0025] The remaining third ring of stirring blades on the rotating shaft is positioned axially between the first and second rings, forming an alternating forward-reverse-forward or reverse-forward-reverse rotation pattern, which is beneficial for thorough mixing.

[0026] Preferably, the mixing tube section is provided with an annular injection port, so that the input of the dyeing liquid tube is mixed into the input of the textile raw material tube in an annular manner.

[0027] The advantages of this invention are: it helps reduce the material handling time of traditional static drum mixing. Furthermore, because mixing occurs within a pipeline, it reduces residue on the pipe walls, thus minimizing cleaning time and extending processing intervals. It also provides multiple mixing methods. Attached Figure Description

[0028] Figure 1 Assembly diagram of Embodiment 1 of this utility model;

[0029] Figure 2 Assembly diagram of the hybrid mechanism in Embodiment 1 of this utility model;

[0030] Figure 3 Assembly diagram of the hybrid mechanism in Embodiment 2 of this utility model;

[0031] Figure 4 The structural diagram of the hybrid pipe section used in Embodiment 4 of this utility model;

[0032] In the diagram: 1. Textile raw material pipe, 2. First solenoid valve, 3. Mixing pipe section, 4. Dynamic mixing pipe, 5. Second solenoid valve, 6. Drive source, 7. Coloring liquid pipe, 8. Check valve, 9. Stirring rod, 10. Stirring blade, 11. Scraper, 31. Annular injection port. Detailed Implementation

[0033] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example 1

[0034] like Figure 1 and Figure 2 As shown, the breathable POY dyeing device includes: a textile raw material tube 1 and a dyeing liquid tube 7.

[0035] A first solenoid valve 2 is installed on the textile raw material pipe, and a mixing pipe section 3 is installed on the output port; a branch of the mixing pipe section is connected to the dyeing liquid pipe 7; the first port of the mixing pipe section is connected to the textile raw material pipe 1, and a dynamic mixing pipe 4 is installed on the second port; a check valve 8 is installed on the dyeing liquid pipe 7.

[0036] The output port of the dynamic mixing tube is equipped with a bend, and the drive source 6 of the dynamic mixing tube is located below the bend. The drive source provides power to the mixing mechanism inside the dynamic mixing tube.

[0037] A second solenoid valve 5 is installed on the output end of the bend.

[0038] Unlike the mixing method of static buckets, this application adopts a simultaneous input and output method, which enables continuous coloring and avoids the time gaps caused by material transfer in static bucket mixing. This is also more conducive to automated processing and production.

[0039] Static tank mixing involves introducing textile raw material and dyeing liquid into a tank for mixing, and then outputting it from the discharge port to a transfer container or directly to the textile machine. However, the dyeing device of this application continuously mixes the textile raw material and dyeing liquid evenly in a dynamic mixing tube and continuously inputs it into the textile machine.

[0040] The drive source uses a servo motor.

[0041] At least two elongated oblong observation windows are provided on the side of the dynamic mixing tube.

[0042] The structure of the mixing mechanism includes: a rotating shaft coaxial with the dynamic mixing tube, and a bracket disposed inside the dynamic mixing tube for fixing the rotating shaft;

[0043] Several stirring rods 9 are arranged in a spiral pattern on the rotating shaft, with equal spacing between the stirring rods;

[0044] The helix angle is at least 360°.

[0045] All stirring rods are designed to run through the central axis of the rotating shaft and be symmetrical about the central axis, with gaps in the axial direction, which is beneficial for repeated stirring of liquid. Example 2

[0046] like Figure 3 The difference between this embodiment and Embodiment 1 is that a different mixing mechanism is used.

[0047] The structure of the mixing mechanism includes: a rotating shaft coaxial with the dynamic mixing tube, and a bracket disposed inside the dynamic mixing tube for fixing the rotating shaft;

[0048] A stirring plate 10 is set on the rotating shaft, and the stirring plate 10 rotates symmetrically about the rotating shaft as the center.

[0049] The shaft uses a coaxial bidirectional shaft, and a gearbox is set between the drive source and the shaft to convert the single-phase input to a coaxial bidirectional input;

[0050] The shaft of the bidirectional rotating shaft has at least one ring of stirring blades.

[0051] Two rings of stirring blades are provided on one of the rotating shafts, and the two rings of stirring blades overlap in the vertical projection.

[0052] A scraper 11 is provided on the outer side of the stirring blade, and the scraper connects two sets of stirring blades. Example 3

[0053] The difference between this embodiment and Embodiment 2 is that different mixing mechanisms are used, and the arrangement of the stirring blades adopts different structures.

[0054] The mixing mechanism also has a variant structure: based on the coaxial bidirectional rotating shaft, the scraper contains a metal skeleton, and the metal skeleton is fixed or integrally formed with the stirring blades. In this way, one of the two rings of stirring blades (the first ring and the second ring) can be changed to be hinged to the coaxial bidirectional rotating shaft, while the other ring remains fixed.

[0055] The remaining third ring of stirring blades on the rotating shaft is positioned axially between the first and second rings, forming an alternating forward-reverse-forward or reverse-forward-reverse rotation pattern, which is beneficial for thorough mixing. Example 4

[0056] like Figure 4 The difference between this embodiment and Embodiment 1 is that the mixing tube section is provided with an annular injection port 31, which mixes the input of the dyeing liquid tube into the input of the textile raw liquid tube in an annular manner.

[0057] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A breathable POY dyeing device for yarn, characterized in that, include: Textile raw material tube and dyeing liquid tube; A first solenoid valve is installed on the textile raw material pipe, and a mixing pipe section is installed on the output port; the branch of the mixing pipe section is connected to the dyeing liquid pipe; the first port of the mixing pipe section is connected to the textile raw material pipe, and a dynamic mixing pipe is installed on the second port. The output port of the dynamic mixing tube is equipped with a bend, and the drive source of the dynamic mixing tube is located below the bend. The drive source provides power to the mixing mechanism inside the dynamic mixing tube. A second solenoid valve is installed at the output end of the bend.

2. The breathable POY dyeing device according to claim 1, characterized in that, At least two elongated oblong observation windows are provided on the side of the dynamic mixing tube; The structure of the mixing mechanism includes: a rotating shaft coaxial with the dynamic mixing tube, and a bracket disposed inside the dynamic mixing tube for fixing the rotating shaft; Several stirring rods are arranged in a spiral pattern on the rotating shaft, with equal spacing between the stirring rods; The helix angle is at least 360°.

3. The breathable POY dyeing device according to claim 1, characterized in that, At least two elongated oblong observation windows are provided on the side of the dynamic mixing tube; The structure of the mixing mechanism includes: a rotating shaft coaxial with the dynamic mixing tube, and a bracket disposed inside the dynamic mixing tube for fixing the rotating shaft; A stirring blade is placed on the rotating shaft, and the stirring blade rotates symmetrically about the rotating shaft as the center. The shaft uses a coaxial bidirectional shaft, and a gearbox is set between the drive source and the shaft to convert the single-phase input to a coaxial bidirectional input; The shaft of the bidirectional rotating shaft has at least one ring of stirring blades.

4. The breathable POY dyeing device for yarn according to claim 1, characterized in that, Two rings of stirring blades are provided on one of the rotating shafts, and the two rings of stirring blades overlap in the vertical projection. A scraper is provided on the outer edge of the stirring blade, and the scraper connects two sets of stirring blades.

5. The breathable POY dyeing device according to claim 1, characterized in that, The mixing tube section is equipped with an annular injection port, which mixes the input of the dyeing liquid tube into the input of the textile raw material tube in an annular manner.

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