Nylon yarn dyeing and finishing equipment

Abstract

The utility model relates to the technical field of textile yarn dyeing and finishing, in particular to polyamide yarn dyeing and finishing equipment which comprises a dye liquor cylinder and a dye liquor box, a yarn cage base is arranged in the dye liquor cylinder, a plurality of hollow bobbins are vertically arranged at the top of the yarn cage base, a plurality of liquor outlet holes are formed in the side walls of the hollow bobbins, and the liquor outlet holes are communicated with the hollow bobbins. A cavity is formed in the sarong base, the inner side of the hollow bobbin is communicated with the cavity, a liquid inlet hole communicated to the cavity is formed in the bottom of the sarong base, a liquid inlet pipe is arranged at the bottom of the dye liquor cylinder, and the end, away from the dye liquor cylinder, of the liquid inlet pipe is connected with a first pipeline and a second pipeline through a three-way pipe. The first pipeline and the second pipeline are both connected with the dye liquor box, a main pump and a first on-off valve are installed on the first pipeline, and an auxiliary pump and a second on-off valve are installed on the second pipeline; the main pump and the auxiliary pump are circularly and alternately carried out, so that inner and outer layers are uniformly dyed, and the inner and outer layers of yarns are uniformly dyed.

Description

Technical Field

[0001] This utility model relates to the field of textile yarn dyeing and finishing technology, and more specifically to nylon yarn dyeing and finishing equipment. Background Technology

[0002] In the dyeing process of nylon yarn packages, the uniformity of dye penetration directly determines the dyeing quality. Traditional dyeing machines immerse the yarn packages in dye, relying on the natural penetration of the dye to complete the dyeing process. During the dyeing process, the dye is in a static state, the dyeing time is relatively long, the dye penetration effect is poor, there is a significant color difference between the inner and outer layers, and it is difficult to guarantee the uniformity of dyeing. Utility Model Content

[0003] The purpose of this invention is to provide a nylon yarn dyeing and finishing equipment to ensure uniform dyeing of the inner and outer layers, thereby achieving uniform dyeing of the inner and outer layers of the yarn.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A nylon filament dyeing and finishing equipment includes a dyeing vat and a dyeing tank. The dyeing vat has a yarn cage base inside, with multiple hollow yarn tubes vertically arranged on the top of the yarn cage base. Multiple liquid outlet holes are opened on the side walls of the hollow yarn tubes. A cavity is opened inside the yarn cage base, and the inner side of each hollow yarn tube communicates with the cavity. An inlet hole communicating with the cavity is opened at the bottom of the yarn cage base. An inlet pipe is installed at the bottom of the dyeing vat. The end of the inlet pipe away from the dyeing vat is connected to a first pipe and a second pipe via a T-junction. Both the first and second pipes are connected to the dyeing tank. A main pump and a first on / off valve are installed on the first pipe, and an auxiliary pump and a second on / off valve are installed on the second pipe.

[0006] Furthermore, a filter box is installed on the second pipe.

[0007] Furthermore, the filter box is provided with multiple layers of filter screens along the longitudinal direction.

[0008] Furthermore, a hanging rod is vertically fixed to the top of the gauze base, and a hanging ring is provided at the top of the hanging rod.

[0009] Furthermore, a sealing rubber ring is provided on the side wall of the gauze base.

[0010] Furthermore, a positioning post is vertically installed on the inner bottom of the dyeing vat, and a positioning seat is fixedly connected to the bottom of the yarn cage base. The bottom of the positioning seat is provided with a positioning groove corresponding to the positioning post, and the positioning post and the positioning groove are inserted into each other.

[0011] Furthermore, a level gauge is installed on the dyeing tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention constructs a bidirectional dye liquor circulation system by setting up a connection structure between the hollow yarn tube and the cavity, combined with a three-way pipe and independently driven main and auxiliary pumps. Initially, the first shut-off valve is open and the second shut-off valve is closed. The main pump drives the dye liquor from the dye liquor tank through the first pipe, the three-way pipe, the inlet pipe, and the inlet hole into the cavity, and then through the outlet hole on the side wall of the hollow yarn tube to penetrate into the outer layer of the nylon yarn, ensuring that the inner layer of nylon yarn is fully dyed. After a period of time, the first shut-off valve closes and the second shut-off valve opens. The auxiliary pump drives the dye liquor from the dye liquor tank through the second pipe and the three-way pipe back to the dye liquor tank, realizing the reverse penetration of the dye liquor from the outer layer of the nylon yarn to the inner side of the hollow yarn tube. The main pump and auxiliary pump alternately circulate to ensure uniform dyeing of the inner and outer layers, achieving uniform dyeing of the yarn's inner and outer layers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention.

[0016] 1. Dyeing vat; 2. Dyeing tank; 3. Yarn cage base; 301. Cavity; 302. Liquid inlet; 4. Hollow yarn tube; 401. Liquid outlet; 5. Liquid inlet pipe; 6. T-connector; 7. First pipe; 8. Second pipe; 9. Main pump; 10. First shut-off valve; 11. Auxiliary pump; 12. Second shut-off valve; 13. Filter box; 14. Filter screen; 15. Hanging rod; 16. Hanging ring; 17. Sealing rubber ring; 18. Positioning column; 19. Positioning seat; 20. Liquid level gauge. Detailed Implementation

[0017] like Figure 1 and Figure 2 As shown, the nylon yarn dyeing and finishing equipment includes a dyeing vat 1 and a dyeing tank 2. The dyeing vat 1 is equipped with a yarn cage base 3. Multiple hollow yarn tubes 4 are vertically arranged on the top of the yarn cage base 3. Multiple liquid outlet holes 401 are opened on the side walls of the hollow yarn tubes 4. A cavity 301 is opened inside the yarn cage base 3. The inner side of the hollow yarn tubes 4 is connected to the cavity 301. A liquid inlet hole 302 connected to the cavity 301 is opened at the bottom of the yarn cage base 3. A liquid inlet pipe 5 is provided at the bottom of the dyeing vat 1. The end of the liquid inlet pipe 5 away from the dyeing vat 1 is connected to a first pipe 7 and a second pipe 8 through a three-way pipe 6. Both the first pipe 7 and the second pipe 8 are connected to the dyeing tank 2. A main pump 9 and a first on / off valve 10 are installed on the first pipe 7. An auxiliary pump 11 and a second on / off valve 12 are installed on the second pipe 8.

[0018] A filter box 13 is installed on the second pipe 8; multiple layers of filter screens 14 are arranged longitudinally inside the filter box 13; the filter screens 14 in the filter box 13 can trap fiber debris and dye flocculents in the dye liquor. When the filtered dye liquor is reused, it can reduce the interference of impurities on the dyeing quality, and is especially suitable for dyeing sensitive colors or high-count nylon yarn.

[0019] The top of the gauze base 3 is vertically fixedly connected to a lifting rod 15, and the top of the lifting rod 15 is provided with a lifting ring 16. The lifting ring 16 facilitates the quick loading and unloading of the gauze base 3 by crane or other lifting equipment, reducing the intensity of manual handling and improving production efficiency.

[0020] A sealing rubber ring 17 is provided on the side wall of the gauze base 3; the sealing rubber ring 17 on the side wall of the gauze base 3 can fit tightly with the inner wall of the dyeing liquid tank 1 to prevent the dyeing liquid from leaking from the edge of the gauze base 3 during circulation, especially to maintain the stability of the system pressure during reverse circulation (dyeing liquid tank 1 → storage tank 2).

[0021] A positioning post 18 is vertically installed on the bottom inner side of the dyeing vat 1, and a positioning seat 19 is fixedly connected to the bottom of the yarn cage base 3. The bottom of the positioning seat 19 has a positioning groove corresponding to the positioning post 18, and the positioning post 18 is inserted into the positioning groove. The insertion structure of the positioning post 18 and the positioning groove ensures the precise alignment of the yarn cage base 3 during installation and ensures that the sealing rubber ring 17 is tightly fitted to the inner wall of the dyeing vat 1. In addition, the positioning post 18 provides support for the yarn cage base 3.

[0022] The dyeing tank 1 is equipped with a level gauge 20; the level gauge 20 can intuitively display the liquid level in the dyeing tank 1, which makes it convenient for operators to replenish the dyeing liquid or adjust the circulation flow in a timely manner, and avoid the pump running dry due to the liquid level being too low or the overflow caused by the liquid level being too high.

[0023] Working principle:

[0024] Nylon yarn is wound onto a loose bobbin (with multiple small holes). The loose bobbin with nylon yarn is then placed onto the hollow yarn tube 4. The yarn cage base 3 is placed into the dye bath 1 using a hoisting device and a lifting ring 16. The positioning seat 19 is inserted into the positioning column 18.

[0025] Forward circulation (dyeing from the inside out): The main pump 9 is turned on, the first shut-off valve 10 is opened, and the second shut-off valve 12 is closed; the dye liquor flows from the dye liquor 2 through the first pipe 7, the three-way pipe 6, and the inlet pipe 5 into the cavity 301 of the yarn cage base 3, and is sprayed into the inside of the loose bobbin through the outlet hole 401 of the hollow yarn tube 4; the dye liquor passes through the loose bobbin, penetrates the yarn layer and flows to the outside, completing the initial dyeing of the inner nylon yarn, and finally flows into the dye liquor tank 1;

[0026] Reverse circulation (dyeing from the outside to the inside): The auxiliary pump 11 is turned on, the second shut-off valve 12 is opened, and the first shut-off valve 10 is closed; the dye liquor in the dye liquor tank 1 flows into the cavity 301 of the yarn cage base 3 through the outlet hole 401 of the hollow yarn tube 4, and the dye liquor continues to flow into the second pipe 8 through the inlet pipe 5 and the three-way pipe 6. After impurities are removed by the filter box 13, the dye liquor flows back to the dye liquor tank 2; the dye liquor penetrates from the outer layer of the nylon yarn to the inside under the drive of the auxiliary pump.

[0027] By cooperating with the three-way pipe 6, the first on-off valve 10, and the second on-off valve 12, the flow direction is switched alternately to ensure uniform dyeing of the inner and outer layers, thus achieving uniform dyeing of the inner and outer layers of the yarn.

[0028] This technical solution effectively solves the problem of uneven dye penetration in traditional dyeing methods through a bidirectional circulation design. During forward circulation, the dye solution flows from the inside of the yarn bobbin to the outside, fully saturating the inner layer of nylon yarn. During reverse circulation, the dye solution penetrates from the outer layer of the bobbin into the hollow yarn tube, ensuring that the outer layer of nylon yarn is fully in contact with the dye solution. This bidirectional penetration method significantly reduces color difference between the inner and outer layers of the yarn, resulting in more uniform dyeing and a marked improvement in the dyeing quality of the nylon yarn.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nylon filament dyeing and finishing apparatus characterized by: The utility model provides a dyeing solution tank and dyeing solution vat, the dyeing solution vat is equipped with the yarn cage pedestal in, the top of yarn cage pedestal is vertically provided with a plurality of hollow yarn tubes, the side wall of hollow yarn tube is equipped with a plurality of liquid outlet holes, the yarn cage pedestal is equipped with cavity, the inside of hollow yarn tube is linked with cavity, the bottom of yarn cage pedestal is equipped with the liquid inlet hole that links to cavity, the bottom of dyeing solution vat is equipped with liquid inlet pipe, the one end of liquid inlet pipe is connected with first pipeline and second pipeline through three -way pipe away from dyeing solution vat, first pipeline and second pipeline are connected with dyeing solution tank, first pipeline is installed with main pump and first on-off valve, second pipeline is installed with auxiliary pump and second on-off valve.

2. The device for dyeing and finishing of nylon yarn according to claim 1, characterized in that: The second pipeline is installed with a filter box.

3. The device for dyeing and finishing of nylon yarn according to claim 2, characterized in that: The filter box is provided with a plurality of layers of filter screens in the longitudinal direction.

4. The device for dyeing and finishing of nylon yarn according to claim 1, characterized in that: The top of the yarn cage pedestal is vertically fixedly connected with a suspender, and the top of the suspender is provided with an eye.

5. The device for dyeing and finishing of nylon yarn according to claim 4, characterized in that: The side wall of the yarn cage pedestal is provided with a sealing rubber ring.

6. The device for dyeing and finishing of nylon yarn according to claim 4, characterized in that: The inside bottom of the dyeing solution vat is vertically provided with a positioning column, and the bottom of the yarn cage pedestal is fixedly connected with a positioning seat.

7. The device for dyeing and finishing of nylon yarn according to claim 1, characterized in that: The bottom of the positioning seat is provided with a positioning groove corresponding to the positioning column, and the positioning column and the positioning groove are insertedly connected. The dyeing solution vat is provided with a liquid level meter.

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