Anti-twist rope mechanism of overflow dyeing machine

Abstract

The utility model discloses a kind of overflow dyeing machine anti-twist rope mechanisms, including cloth guide pipe, first nozzle, second nozzle, cloth lifting wheel and cover shell;Cloth guide pipe is hollow tubular structure, including top end section, vertical section, bending section and horizontal section communicated in turn;First nozzle is set to the top end section of cloth guide pipe, and the injection direction of first nozzle is obliquely downward to the inside of cloth guide pipe;Second nozzle is set to the outside of the bending section of cloth guide pipe, and the injection port of second nozzle is through the bending section pipe wall of cloth guide pipe and extends to the inside of cloth guide pipe;Cloth lifting wheel is set to the top of the top end section of cloth guide pipe, cover shell is covered to the outside of cloth lifting wheel, and cloth lifting wheel is used to lift the fabric in dyeing tank to the top end section of cloth guide pipe.The utility model sets second nozzle in the bending section of cloth guide pipe, and the fabric in slack state at the bending section of cloth guide pipe is impacted and blown away, break the twist tendency of fabric, fundamentally solve the problem that high branch high density high gram weight fabric is easy to twist rope.

Description

Technical Field

[0001] This utility model relates to the field of textile dyeing equipment technology, specifically to an anti-twist rope mechanism for overflow dyeing machines, which is particularly suitable for dyeing high-count, high-density, and high-grammage fabrics. Background Technology

[0002] Overflow dyeing machines are commonly used fabric dyeing equipment in the textile industry. Their working principle involves a circulating pump delivering dye liquor from the dye bath to a guide tube. Driven by the dye liquor, the fabric circulates between the guide tube and the dye bath, achieving uniform dyeing. Existing overflow dyeing machines typically have a guide tube consisting of a vertical section, a bending section, and a horizontal section. After the fabric enters the top of the guide tube from the lifting roller, it first passes through the vertical section, then the bending section, and finally flows back to the dye bath.

[0003] However, in practical applications, high-count, high-density, and high-weight fabrics are prone to twisting and tangling due to their heavy weight, tight fiber structure, and the influence of gravity, changes in dye liquor flow direction, and process parameters. This results in a "twisted rope" phenomenon. Twisted fabric not only hinders the normal circulation of dye liquor, leading to uneven dyeing, but also creates continuous compressive stress at the twisted areas. After dyeing, these areas will develop permanent creases that are difficult to remove, severely affecting the fabric's appearance quality and subsequent processing performance.

[0004] Current industry improvements addressing these issues primarily focus on optimizing the bending angle of the fabric guide tube or increasing the fabric conveying tension. However, the former only slightly alleviates the fabric's twisting tendency and cannot fundamentally solve the problems of twisting and fixed folding in a tension-free, relaxed state; the latter may cause stretching deformation of high-count, high-density, and high-weight fabrics due to excessive tension, thereby damaging the fabric's structural integrity. Therefore, there is an urgent need for a technical solution that can effectively solve the problems of fabric twisting and fixed folding creases in the bending section of the fabric guide tube without damaging the fabric. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an anti-twisting rope mechanism for an overflow dyeing machine, which avoids rope twisting, ensures uniform dyeing of fabric, and eliminates fabric creases.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an anti-twist rope mechanism for an overflow dyeing machine, comprising a guide tube, a first nozzle, a second nozzle, a lifting wheel, and a cover;

[0007] The guide tube is a hollow tubular structure, comprising a vertical guide tube, a bent guide tube, and a horizontal guide tube connected in sequence.

[0008] The first nozzle is located at the top end of the guide tube, and the spray direction of the first nozzle is tilted downwards and points into the guide tube.

[0009] The second nozzle is located on the outside of the bent section of the guide tube, and the spray port of the second nozzle penetrates the wall of the bent section of the guide tube and extends into the inside of the guide tube.

[0010] The fabric lifting wheel is positioned directly above the top section of the fabric guide tube, and the cover is positioned outside the fabric lifting wheel. The fabric lifting wheel is used to lift the fabric in the dyeing tank to the top section of the fabric guide tube.

[0011] Furthermore, the second nozzle is provided with a diffusion nozzle at its spray port, and the spray range of the diffusion nozzle covers the entire cross-section of the bending section of the guide tube.

[0012] Furthermore, the spray direction of the second nozzle forms an 85° angle with the flow direction of the fabric inside the bending section of the guide tube.

[0013] Furthermore, it also includes a dyeing tank, a circulating pump, and a return pipe; one end of the return pipe is connected to the circulating water outlet of the dyeing tank through the circulating pump; the other end of the return pipe is connected to branch pipe one and branch pipe two; branch pipe one supplies water to the first nozzle; and branch pipe two supplies water to the second nozzle.

[0014] Furthermore, both the first branch pipe and the second branch pipe are equipped with flow regulating valves.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention features a second nozzle specifically designed for the bending section of the fabric guide tube. The dye liquor delivered by the circulating pump impacts and blows away the fabric in a relaxed state at the bending point of the fabric guide tube, breaking the twisting tendency of the fabric and fundamentally solving the problem of high-count, high-density, and high-grammage fabrics being prone to twisting.

[0017] Through the blowing action of the second nozzle, the original folding state of the fabric is broken every time it passes through the bending section, and a new folding position is formed randomly. No folding part can maintain a fixed shape for a long time, avoiding permanent creases caused by local long-term compression stress. This solves the problem of dyeing creases in high-count, high-density, and high-grammage fabrics from the core principle.

[0018] By optimizing the spray angle of the second nozzle, setting up a diffusion nozzle and a flow regulating valve, the impact force of the dye liquor can be flexibly adjusted according to the characteristics of high-count, high-density, and high-weight fabrics. This effectively prevents twisting and will not cause stretching or damage to the fabric, ensuring the integrity of the fabric structure.

[0019] This invention can be achieved simply by adding a second nozzle and corresponding branch pipe to the existing overflow dyeing machine. It does not require large-scale modification of the main structure of the guide pipe or core components such as the lifting wheel. It has low manufacturing cost and is compatible with most existing overflow dyeing machines, making it easy to promote and apply in the industry.

[0020] On the one hand, the elimination of the twisting phenomenon avoids obstruction of dye liquor circulation and ensures that the dye liquor flows evenly in the guide tube; on the other hand, after the fabric is blown apart, it can come into fuller contact with the dye liquor, and there are no fixed folds to block the dye liquor penetration, which further ensures the consistency of dyeing depth in various parts of the fabric and improves the dyeing quality. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of Example 2.

[0024] In the diagram: 1-Guide pipe; 2-First nozzle; 3-Second nozzle; 4-Lifting wheel; 5-Cover; 6-Dyeing tank; 7-Circulation pump; 8-Return pipe; 9-Branch pipe one; 10-Branch pipe two; 11-First nozzle housing; 12-Vertical guide pipe; 13-Bent guide pipe; 14-Horizontal guide pipe; 15-Automatic flow regulating valve. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0026] Example 1

[0027] refer to Figure 1 The present invention relates to an anti-twist rope mechanism for an overflow dyeing machine, comprising a guide tube 1, a first nozzle 2, a second nozzle 3, a lifting wheel 4, and a cover 5.

[0028] In this embodiment, the guide tube 1 is a hollow tubular structure, including a vertical guide tube 12, a bent guide tube 13, and a horizontal guide tube 14 connected in sequence. The end of the horizontal guide tube 14 is connected to the dyeing tank, forming a circulation channel for the fabric and dye liquor.

[0029] The first nozzle 2 is disposed at the top end of the vertical guide tube 12. The top end of the vertical guide tube 12 is fitted with the first nozzle housing. The first nozzle 2 is disposed inside the first nozzle housing, and the spray direction of the first nozzle 2 is tilted downwards and points into the guide tube 1.

[0030] The second nozzle 3 is located on the outside of the bent section of the guide tube 1, and the spray port of the second nozzle 3 penetrates the wall of the bent section of the guide tube 1 and extends into the interior of the guide tube 1. A diffuser nozzle can be provided at the spray port of the second nozzle 3, and the spray range of the diffuser nozzle covers the entire cross-section of the bent section of the guide tube. On the inner wall of the bent section of the guide tube, a circular groove is provided at a lateral position corresponding to the fabric flow path. The depth of the groove is adapted to the thickness of the subsequent diffuser nozzle to ensure that the nozzle does not protrude from the inner wall of the bent section of the guide tube after installation.

[0031] The fabric lifting wheel 4 is located directly above the top section of the fabric guide tube 1, and the cover 5 is placed on the outside of the fabric lifting wheel 4. The fabric lifting wheel 4 is used to lift the fabric in the dyeing tank to the top section of the fabric guide tube, so that the fabric enters the interior of the fabric guide tube.

[0032] The second nozzle's spray direction forms an 85° angle with the fabric flow direction within the bending section of the guide tube; this angle design effectively propels the fabric forward smoothly while also producing a moderate unfolding effect, preventing the fabric from twisting during transport. This design is intended to accommodate the processing needs of different types of fabrics.

[0033] Example 2

[0034] like Figure 2 As shown, this embodiment also includes a dyeing tank 6, a circulating pump 7, and a return pipe 8. The dyeing tank 6 is used to contain dye liquor and fabric to be dyed. The inlet of the circulating pump 7 is connected to the circulating water outlet of the dyeing tank 6 to extract the dye liquor from the dyeing tank. The outlet of the circulating pump 7 is connected to one end of the return pipe 8. The other end of the return pipe 8 is connected to branch pipe 1 9 and branch pipe 2 10. The end of the first nozzle 2 away from the guide pipe 1 is connected to branch pipe 1 9. Branch pipe 1 9 supplies water to the first nozzle. The end of the second nozzle 3 away from the guide pipe 1 is connected to branch pipe 2 10. Branch pipe 2 10 supplies water to the second nozzle 3.

[0035] Both branch pipe one and branch pipe two are equipped with automatic flow regulating valves 15. By adjusting the flow regulating valves, the flow rate of dye liquor flowing into the first nozzle and the second nozzle can be controlled respectively. The impact force of the dye liquor can be flexibly adjusted according to the fabric's weight, density and other parameters, which ensures that the loose fabric can be completely blown apart and the fixed folding trend can be broken, while avoiding damage to the fabric due to excessive impact force.

[0036] The working principle of this utility model is as follows:

[0037] Start the circulation pump, which draws out the dye liquid from the dyeing tank and delivers it to the return pipe. The dye liquid in the return pipe flows to the first nozzle and the second nozzle through the first branch pipe and the second branch pipe respectively. By adjusting the flow regulating valve on each branch pipe, set a suitable dye liquid spray flow rate to ensure that the second nozzle has sufficient impact force to blow away the fabric.

[0038] Driven by the drive device, the lifting wheel rotates and lifts the fabric to be dyed in the dyeing tank to the top section of the guide tube. At this time, the first nozzle sprays the dye liquid downward from both sides of the top section of the guide tube. Under the driving force of the dye liquid, the fabric smoothly enters the vertical section of the guide tube and flows downward.

[0039] When the fabric flows to the bending section of the guide tube, it is in a relaxed state due to the structural characteristics of the bending section. At this time, the second nozzle sprays the dye liquid evenly into the bending section of the guide tube through the diffusion nozzle. The dye liquid acts on the relaxed fabric and uses the impact force of the dye liquid to blow the fabric completely apart. This not only breaks the twisting trend of the fabric and prevents it from twisting, but also disperses the original folding state of the fabric and avoids the local area from maintaining a fixed folding shape for a long time.

[0040] After being dispersed by the second nozzle, the fabric continues to flow to the horizontal section of the guide tube under the influence of the dye liquor, and finally flows back to the dyeing tank from the end of the horizontal section. During this process, the fabric is in a random, slight folding state due to being dispersed, rather than a fixed fold.

[0041] Repeat the above cyclic steps: Each time the fabric passes through the bending section of the guide tube, it will be blown apart again by the second nozzle, and the original slight folds will be disrupted, with new folds formed randomly. Since no fold can be maintained for a long time, no permanent creases will form on any part of the fabric due to continuous compressive stress. At the same time, in the continuous cycle, all parts of the fabric can fully contact the dye liquor, ensuring uniform dyeing until the dyeing process is completed.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. An anti-twist rope mechanism for an overflow dyeing machine, characterized in that: Includes a fabric guide tube, a first nozzle, a second nozzle, a fabric lifting wheel, and a cover; The guide tube is a hollow tubular structure, comprising a vertical guide tube, a bent guide tube, and a horizontal guide tube connected in sequence. The first nozzle is located at the top end of the guide tube, and the spray direction of the first nozzle is tilted downwards and points into the guide tube. The second nozzle is located on the outside of the bent section of the guide tube, and the spray port of the second nozzle penetrates the wall of the bent section of the guide tube and extends into the inside of the guide tube. The fabric lifting wheel is positioned directly above the top section of the fabric guide tube, and the cover is positioned outside the fabric lifting wheel. The fabric lifting wheel is used to lift the fabric in the dyeing tank to the top section of the fabric guide tube.

2. The anti-twist rope mechanism for an overflow dyeing machine according to claim 1, characterized in that: The spray direction of the second nozzle forms an 85° angle with the flow direction of the fabric inside the bending section of the guide tube.

3. The anti-twist rope mechanism for an overflow dyeing machine according to claim 1, characterized in that: The second nozzle is equipped with a diffusion nozzle at its spray port, and the spray range of the diffusion nozzle covers the entire cross-section of the bending section of the guide tube.

4. The anti-twist rope mechanism for an overflow dyeing machine according to claim 1, characterized in that: It also includes a dyeing tank, a circulating pump, and a return pipe; one end of the return pipe is connected to the circulating water outlet of the dyeing tank through the circulating pump; the other end of the return pipe is connected to branch pipe one and branch pipe two; branch pipe one supplies water to the first nozzle; and branch pipe two supplies water to the second nozzle.

5. The anti-twist rope mechanism for an overflow dyeing machine according to claim 4, characterized in that: Both the first branch pipe and the second branch pipe are equipped with flow regulating valves.

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