A fabric dyeing padding device

Abstract

This utility model discloses a fabric dyeing and padding device, including a fabric feeding frame, an impregnation tank, and a padding mechanism arranged along the fabric feeding direction. The device is characterized by a dirt removal mechanism located behind the fabric feeding frame, multiple guide rollers within the impregnation tank, and a liquid pipe arranged along the fabric width direction at the bottom of the tank. One end of the liquid pipe extends out of the impregnation tank and connects to a treatment liquid storage tank. Multiple inclined spray pipes are mounted on the liquid pipe, with the inclination direction of the spray pipes opposite to the fabric running direction. This utility model, by using spray pipes with spray directions opposite to the fabric running direction within the impregnation tank, allows the sprayed liquid to push the treatment liquid within the tank, enabling the treatment liquid to penetrate the fabric and ensuring impregnation permeability. Furthermore, under the driving force of the spray flow, the dye will not settle, and there will be no gradient change in the treatment liquid within the tank, ensuring uniform fabric impregnation. This improves the impregnation effect without increasing the number of impregnation tanks or padding machines.

Description

Technical Field

[0001] This utility model relates to the field of fabric dyeing technology, specifically to a fabric dyeing padding device. Background Technology

[0002] Padding is a crucial step in textile dyeing and finishing. Its purpose is to allow the fabric to evenly absorb dyes, finishing agents, flame retardants, and other treatment solutions. The fabric's liquid retention is then controlled by the pressure of rollers, resulting in a uniform and durable treatment effect. Uneven immersion can lead to color differences and poor functional finishing. To ensure optimal immersion, multiple dips and tucks are often used, allowing the fabric more time to contact the dye solution. Multiple pressures improve the uniformity and penetration of the immersion. However, this method requires large equipment footprints and is costly. Therefore, improving immersion uniformity and penetration while reducing floor space and without increasing production costs is a persistent challenge for the textile industry. Utility Model Content

[0003] In view of the shortcomings and defects of the existing technology, the present invention provides a fabric dyeing padding device that improves the uniformity and penetration of impregnation.

[0004] To achieve the above objectives, this utility model provides a fabric dyeing and padding device, including a fabric feeding frame, an impregnation tank, and a padding mechanism arranged along the fabric feeding direction. A dirt removal mechanism is provided behind the fabric feeding frame. Multiple guide rollers are arranged inside the impregnation tank, and a liquid inlet pipe arranged along the fabric width direction is provided at its bottom. One end of the liquid inlet pipe extends out of the impregnation tank and connects to a treatment liquid storage tank, while the other end is sealed. Multiple inclined spray pipes are provided on the liquid inlet pipe, with the inclination direction of the spray pipes opposite to the fabric running direction. Spraying the treatment liquid in the direction opposite to the fabric running direction can break the boundary layer, allowing the treatment liquid to penetrate the fabric and ensuring impregnation permeability. Moreover, under the driving force of the jet flow, the dye will not settle, and there will be no gradient change in the treatment liquid within the tank, ensuring uniform fabric impregnation.

[0005] Furthermore, several angle-adjustable nozzles are provided on the side walls of both sides of the impregnation tank, and each nozzle has multiple circular or slit nozzles. By setting nozzles in the impregnation tank, the treatment liquid is intermittently sprayed onto both sides of the fabric, forming turbulence, avoiding the formation of a water film, and assisting the treatment liquid to penetrate the fabric, thereby improving the permeability of the impregnation.

[0006] Furthermore, the impregnation tank has a V-shaped or U-shaped cross-section. This design facilitates drainage when changing the treatment solution, reduces residue, and decreases the amount of cleaning water used, thus saving water.

[0007] Furthermore, the spray pipe includes a spray pipe and a cap mounted on the spray pipe. The spray pipe has a converging cavity with a gradually decreasing diameter and a diffusing cavity with a gradually increasing diameter, arranged along the water outlet direction. The converging cavity and the diffusing cavity are connected by a cylindrical connecting cavity. The cap is connected to the large end of the diffusing cavity. Multiple circular spray holes are formed at the top and around the perimeter of the cap. By designing the spray pipe structure to increase the liquid flow rate, the treatment liquid can be sprayed a greater distance, increasing the spray range. Moreover, the spray holes around the spray pipe prevent the sedimentation of dyes or auxiliaries in the treatment liquid, which could lead to uneven liquid concentration in the tank, ensuring uniform impregnation.

[0008] Furthermore, the impurity removal mechanism includes vacuum nozzles positioned above and below the fabric, facing the fabric, with gaps between the vacuum nozzles and the fabric. This technical solution utilizes vacuum nozzles to remove impurities (such as lint) from the fabric, preventing impurities on the fabric surface from entering the impregnation tank and contaminating the treatment solution.

[0009] Furthermore, pressure rollers and support rollers are respectively provided on both sides of the vacuum nozzles located on the upper and lower sides of the fabric, and the flatness of the fabric is ensured by the cooperation of the pressure rollers and support rollers.

[0010] Furthermore, the fabric dyeing and padding apparatus of the above-mentioned technical solution also includes a guide plate, which is disposed on one side of the guide roller in the fabric running direction and is bent toward the guide roller. The guide plate and the guide roller form a streamlined treatment liquid flow channel, which can guide the treatment liquid to pass through the gap between the guide roller and the fabric with a low liquid volume, rather than passing around the guide roller and the fabric, thereby improving the exchange rate between the treatment liquid and the fabric and improving the thoroughness and uniformity of impregnation.

[0011] Compared with the prior art, the present invention has the following technical effects: 1. The fabric dyeing and padding device of this utility model sets up a spray pipe at the bottom of the impregnation tank. The spraying direction of the spray pipe is opposite to the direction of fabric movement. Spraying the treatment liquid in the opposite direction of fabric movement can break the boundary layer, avoid the formation of water film, and allow the treatment liquid to penetrate the fabric, ensuring the permeability of impregnation. Moreover, under the driving force of the jet flow, the dye will not settle, and there will be no gradient change in the treatment liquid in the tank, ensuring the uniformity of fabric impregnation. 2. The fabric dyeing and padding device of this utility model has several nozzles on the side walls of the immersion tank, which intermittently spray the treatment liquid onto both sides of the fabric to form turbulence, avoid the formation of water film on both sides of the fabric, and can help the treatment liquid penetrate the fabric and improve the permeability of the immersion. 3. The fabric dyeing and padding device of this utility model removes impurities (such as fibers) from the fabric by setting a dirt removal mechanism in front of the immersion tank, preventing impurities on the fabric surface from entering the immersion tank and contaminating the treatment solution, ensuring the immersion effect, and saving treatment solution along the cycle of changing the treatment solution; 4. The fabric dyeing and padding device of this utility model has an arc-shaped guide plate on one side of the guide roller. The guide plate and the guide roller form a streamlined treatment liquid channel, which can guide the treatment liquid to pass through the gap between the guide roller and the fabric under the premise of low liquid volume, instead of passing around the guide roller and the fabric, thereby improving the exchange rate between the treatment liquid and the fabric and improving the penetration and uniformity of the impregnation. 5. In summary, the fabric dyeing and padding device of this utility model, through structural modification of the immersion tank, ensures the uniformity and penetration of immersion without adding an immersion tank and padding machine, thereby improving the immersion effect. It has a simple structure, ingenious design, is easy to implement, and is highly practical. Attached Figure Description

[0012] The accompanying drawings, which form part of this specification and serve to further illustrate the preferred embodiments of the present invention, and together with the specification, serve to explain the principles of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the novel fabric dyeing and padding device; Figure 2 This is a schematic diagram of the spray pipe of the novel fabric dyeing and padding device.

[0013] The labels in the diagram represent the following: 1. Fabric, 2. Fabric feeder, 3. Impurity removal mechanism, 4. Guide roller, 5. Nozzle, 6. Liquid rolling mechanism, 601. Roller, 602. Auxiliary roller, 7. Impregnation tank, 8. Guide roller, 9. Liquid inlet pipe, 10. Spray pipe, 110. Spray nozzle, 120. Cap, 130. Shrinkage chamber, 140. Connecting chamber, 150. Diffusion chamber, 160. Spray hole. Detailed Implementation

[0014] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0015] Example 1: The fabric dyeing and padding device of this utility model includes a fabric feeding frame 2, an impregnation tank 7, and a padding mechanism 6 arranged along the fabric feeding direction. A dirt removal mechanism 3 is arranged on the rear side of the fabric feeding frame 2. The impregnation tank 7 is made of 316 stainless steel and a guide roller 8 is arranged inside the impregnation tank 7, which is rotatably arranged inside the impregnation tank 7. A liquid inlet pipe 9 is arranged at the bottom of the impregnation tank 7 along the fabric width direction. One end of the liquid inlet pipe 9 extends out of the impregnation tank 7 and is connected to the treatment liquid storage tank. The other end of the liquid inlet pipe 9 is sealed. Multiple inclined spray pipes 10 are arranged on the liquid inlet pipe 9, and the inclination direction of the spray pipes 10 is opposite to the running direction of the fabric 1. Under the driving action of the spray flow, the dye will not settle, and the liquid concentration in the tank will not change gradient, ensuring the uniformity of fabric impregnation. The cross-section of the impregnation tank 7 in this embodiment is V-shaped or U-shaped. This design facilitates drainage when changing the treatment liquid, reduces residue, reduces the amount of washing water used, and achieves water conservation. In order to achieve the rolling effect, the rolling mechanism 6 adopts a three-roll rolling mill, which includes rolling mill 601 and auxiliary roller 602 for guiding the cloth. The three-roll rolling mill is existing technology, and its specific structure and transmission method will not be described in detail here.

[0016] To improve impregnation penetration, several angle-adjustable nozzles 5 are installed on the side walls of both sides of the impregnation tank 7. These nozzles can be rotary or swing-arm nozzles, and each nozzle 5 has multiple circular or slit-shaped spray holes. By installing nozzles 5 in the impregnation tank 7, the treatment liquid is intermittently sprayed onto both sides of the fabric, creating turbulence and preventing the formation of a water film. This helps the treatment liquid penetrate the fabric, thereby improving the impregnation penetration.

[0017] like Figure 2 As shown, the spray pipe 10 includes a spray pipe 110 and a cap 120 mounted on the spray pipe 110. The spray pipe 110 has a converging cavity 130 with a gradually decreasing diameter and a diffusing cavity 150 with a gradually increasing diameter, arranged along the water outlet direction. The converging cavity 130 and the diffusing cavity 150 are connected by a cylindrical connecting cavity 140. The cap 120 is threaded to the large end of the diffusing cavity 150. Multiple circular spray holes 160 are opened at the top and around the cap 120. This design helps to open the spray pipe, preventing the sedimentation of dyes or auxiliaries in the treatment liquid, which could lead to uneven liquid concentration in the tank and ensure uniform impregnation.

[0018] In the above embodiments, the structure of the impurity removal mechanism of this utility model is as follows: The impurity removal mechanism 3 includes vacuum nozzles facing the fabric and disposed above and below the fabric 1. The vacuum nozzles are connected to a vacuum generator and are arranged along the width of the fabric, maintaining a certain gap between the vacuum nozzles and the fabric 1. The vacuum nozzles remove impurities (such as fibers) from the fabric, preventing impurities on the fabric surface from entering the impregnation tank 7 and contaminating the treatment solution, ensuring the impregnation effect, and saving treatment solution along the cycle of changing the treatment solution. Pressure rollers 13 and support rollers 12 are respectively arranged on both sides of the vacuum nozzles located on the upper and lower sides of the fabric 1. The paired pressure rollers 13 and support rollers 12 facilitate the smoothing of the fabric and reduce the generation of wrinkles.

[0019] In this embodiment, the fabric dyeing and padding device also includes several guide rollers 4 to make the fabric run along a certain path, as well as a tension coordination system. The tension coordination system includes tension rollers and tension frames installed on tension sensors. The tension coordination system is a common facility in the textile industry, and its structure is the same as that of existing padding devices, so it will not be described in detail here.

[0020] Example 2: To further improve the penetration and uniformity of the impregnation, see Example 2 for details. Figure 1 In Example 2, the fabric dyeing and padding apparatus is equipped with a guide plate 11. The guide plate 11 is arc-shaped and made of 316 stainless steel. The guide plate 11 is fixedly mounted on one side of the guide roller 8 and bends towards the guide roller 8 to guide the liquid in the impregnation tank 7 into the gap between the guide roller 8 and the fabric. The guide plate 11 and the guide roller 8 form a streamlined treatment liquid flow channel, which can guide the treatment liquid to pass through the gap between the guide roller and the fabric with a low liquid volume, rather than passing around the guide roller and the fabric, thereby improving the exchange rate between the treatment liquid and the fabric and improving the penetration and uniformity of impregnation.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fabric dyeing and padding apparatus, comprising a fabric feeding frame, an impregnation tank, and a padding mechanism arranged along the fabric feeding direction, characterized in that, A cleaning mechanism is provided on the rear side of the fabric feeding frame. Multiple guide rollers are provided in the impregnation tank. A liquid inlet pipe is provided at the bottom of the tank, which is arranged along the width of the fabric. One end of the liquid inlet pipe extends out of the impregnation tank and is connected to the treatment liquid storage tank. The other end is sealed. Multiple inclined spray pipes are provided on the liquid inlet pipe. The inclination direction of the spray pipes is opposite to the fabric running direction.

2. The fabric dyeing and padding apparatus according to claim 1, characterized in that, Several angle-adjustable nozzles are provided on the side walls on both sides of the impregnation tank, and the nozzles are provided with multiple circular or slit nozzles.

3. The fabric dyeing and padding apparatus according to claim 2, characterized in that, The cross-section of the impregnation tank is V-shaped or U-shaped.

4. The fabric dyeing and padding apparatus according to claim 1, characterized in that, The spray pipe includes a spray pipe and a cap mounted on the spray pipe. The spray pipe has a converging cavity with a gradually decreasing diameter and a diffuser cavity with a gradually increasing diameter arranged along the water outlet direction. The converging cavity and the diffuser cavity are connected by a cylindrical connecting cavity. The cap is connected to the large end of the diffuser cavity. Multiple circular spray holes are opened at the top and around the cap.

5. The fabric dyeing and padding apparatus according to claim 1, characterized in that, The impurity removal mechanism includes vacuum nozzles positioned above and below the fabric, facing the fabric and arranged along the width of the fabric with gaps between them.

6. The fabric dyeing and padding apparatus according to claim 1, characterized in that, Pressure rollers and support rollers are respectively provided on both sides of the vacuum nozzles located on the upper and lower sides of the fabric.

7. The fabric dyeing padding apparatus according to any one of claims 1-6, characterized in that, It also includes a guide plate, which is disposed on one side of the guide roller and bent toward the guide roller.

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