Dyeing equipment for denim production

By introducing a fabric feeding mechanism and a circulating pump system into the dyeing equipment for denim production, and by utilizing the combination of extrusion components and circulating pumps, the problem of long soaking time in denim dyeing equipment has been solved, achieving efficient and uniform dyeing results.

CN223738303UActive Publication Date: 2025-12-30CHANGZHOU KAILAN TEXTILE CO LTD
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Patent Information

Application Number
CN202520232312.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-12-30
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Existing denim dyeing equipment requires a long soaking time, resulting in low dyeing efficiency.

Method used

The fabric travel mechanism and circulating pump system are adopted. Multiple staggered feeding rollers increase the fabric travel distance. Combined with the squeezing action of the extrusion and dewatering components, the fabric's elastic recovery characteristics are utilized to absorb more dyeing liquor. The circulating pump agitates the dyeing liquor to improve uniformity.

Benefits of technology

It shortens the dyeing time, improves dyeing efficiency and uniformity, and ensures the comprehensiveness of the dyeing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to dyeing equipment for denim production, and belongs to the technical field of denim dyeing, the dyeing equipment comprises a dyeing pool, a cloth conveying mechanism is arranged in the dyeing pool, the cloth conveying mechanism comprises a lifter, a rack, a feeding roller, an extrusion assembly and a dehydration assembly, the lifter is installed at the bottom of the dyeing pool, the rack is installed on the lifter and driven by the lifter to ascend and descend, and the feed roller is installed on the rack. The number of the feeding rollers is multiple, the multiple feeding rollers are rotationally connected to the rack at intervals, and the extrusion assembly is installed on the rack. By arranging a plurality of feeding rollers which are staggered up and down at intervals, the motion distance of the denim fabric can be increased, more denim fabric can be soaked at the same time, then by arranging an extrusion assembly, the denim fabric after water absorption is extruded by utilizing an upper pressing roller and a lower pressing roller, and after the extrusion external force is removed, the denim fabric can be soaked in the upper pressing roller and the lower pressing roller. The denim fabric can absorb more dyeing liquid after being restored to the original shape, the dyeing effect is good, and the soaking time is greatly shortened.
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Description

Technical Field

[0001] This application relates to the technical field of denim dyeing, and in particular to a dyeing device for denim production. Background Technology

[0002] Denim is a relatively thick, yarn-dyed twill cotton fabric. The warp yarns are dark, usually indigo, while the weft yarns are light, usually light gray or bleached off-white. It is also known as indigo workwear.

[0003] In the denim production process, the fabric needs to be immersed in a dyeing tank for coloring. In the existing technology, the fabric is usually directly immersed in the dyeing tank, allowing the dye to soak on its own. This method requires a relatively long soaking time.

[0004] Therefore, in order to improve dyeing efficiency, it is urgent to improve the dyeing equipment. Utility Model Content

[0005] The purpose of this application is to provide a dyeing device for denim production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides a dyeing equipment for denim production, employing the following technical solution:

[0007] A denim dyeing device includes a dyeing tank with a fabric feeding mechanism inside. The fabric feeding mechanism includes a lift, a frame, feed rollers, an extrusion assembly, and a dewatering assembly. The lift is installed at the bottom of the dyeing tank, and the frame is mounted on the lift and driven to move up and down by the lift. Multiple feed rollers are provided and are rotatably connected to the frame at intervals. The extrusion assembly is mounted on the frame. A lifting frame is fixed at the top of the dyeing tank, and the dewatering assembly is mounted on the lifting frame. Both the extrusion assembly and the dewatering assembly are capable of extruding denim fabric.

[0008] Both the extrusion assembly and the dewatering assembly include a vertical frame, a lower pressure roller, an upper pressure roller, and a servo linear guide slide. One end of the lower pressure roller is rotatably connected to the vertical frame, the servo linear guide slide is fixed to the vertical frame, and one end of the upper pressure roller is rotatably mounted on the slide of the servo linear guide slide.

[0009] Preferably, a guide roller is also installed on the frame, the guide roller is disposed on one side of the dewatering component and at the bottom end of the dewatering component.

[0010] By adopting the above technical solution, the dewatering component is set on top of the guide roller. The denim moves vertically to the position of the dewatering component. During this process, the liquid on the surface of the denim will drip onto the denim, so that it can be dyed again along the seam of the denim, ensuring that the dyeing is more complete.

[0011] Preferably, a pipeline is laid at the bottom of the dyeing pool, and several air outlets are installed on the surface of the pipeline. A circulation pipe is installed on the side of the dyeing pool, and a circulation pump is installed inside the circulation pipe.

[0012] By adopting the above technical solution, a circulation pump can be installed to draw the liquid from the bottom of the dyeing tank to the top for circulation, and air can be sprayed from the bottom of the dyeing tank through an air outlet to agitate the liquid inside the dyeing tank, thereby making the dyeing solution mix evenly and improving the coloring effect.

[0013] In summary, this application includes at least one of the following beneficial technical effects: the dyeing equipment for denim production, by setting multiple feed rollers with staggered upper and lower spacing, can increase the movement distance of the denim fabric, and can soak more denim fabric in the same amount of time. Then, by setting an extrusion component, the upper and lower pressure rollers are used to extrude the water-absorbing denim fabric. After the extrusion force is removed, the denim fabric returns to its original shape and can absorb more dyeing liquid, resulting in good dyeing effect and greatly shortening the soaking time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0015] Figure 2 This is a structural schematic diagram used in the embodiments of this application to illustrate the elevator in the raised state.

[0016] Explanation of reference numerals in the attached drawings: 1. Dyeing tank; 2. Elevator; 3. Frame; 4. Feed roller; 5. Extrusion assembly; 51. Vertical frame; 52. Lower pressure roller; 53. Upper pressure roller; 54. Servo linear guide slide; 6. Dewatering assembly; 7. Guide roller; 8. Pipeline; 9. Circulation pipe. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0018] This application discloses a dyeing device for denim production, referring to... Figure 1-2 The system includes a dyeing tank 1, which is equipped with a fabric feeding mechanism. The fabric feeding mechanism includes a lift 2, a frame 3, a feed roller 4, a squeezing assembly 5, and a dewatering assembly 6. The lift 2 is installed at the bottom of the dyeing tank 1, and the frame 3 is installed on the lift 2 and is driven to lift and lower by the lift 2. There are multiple feed rollers 4, which are staggered and rotated on the frame 3. The squeezing assembly 5 is installed on the frame 3. A lifting frame is fixed at the top of the dyeing tank 1, and the dewatering assembly 6 is installed on the lifting frame. Both the squeezing assembly 5 and the dewatering assembly 6 can squeeze the denim fabric.

[0019] Both the extrusion assembly 5 and the dewatering assembly 6 include a vertical frame 51, a lower pressure roller 52, an upper pressure roller 53, and a servo linear guide slide 54. One end of the lower pressure roller 52 is rotatably connected to the vertical frame 51, the servo linear guide slide 54 is fixed on the vertical frame 51, and one end of the upper pressure roller 53 is rotatably mounted on the slide of the servo linear guide slide 54.

[0020] Reference Figure 1-2 The frame 3 is also equipped with a guide roller 7, which is located on one side of the dewatering component 6 and at the bottom of the dewatering component 6.

[0021] The dewatering component 6 is located on top of the guide roller 7. The denim fabric moves vertically to the position of the dewatering component 6. During this process, the liquid on the surface of the denim fabric will drip onto the denim fabric, so that it can be dyed again along the seams of the denim fabric, ensuring that the dyeing is more complete.

[0022] Reference Figure 2 The bottom of the dyeing pool 1 is also laid with pipes 8, and several air outlets are installed on the surface of pipes 8. A circulation pipe 9 is installed on the side of the dyeing pool 1, and a circulation pump is installed inside the circulation pipe 9.

[0023] By installing a circulation pump, the liquid at the bottom of the dyeing tank 1 can be pumped to the top for circulation, and air is sprayed from the bottom of the dyeing tank 1 through the air outlet to agitate the liquid inside the dyeing tank 1, thereby making the dyeing solution mix evenly and improving the coloring effect.

[0024] The implementation principle of a dyeing device for denim production according to an embodiment of this application is as follows:

[0025] In use, the frame 3 is raised by the elevator 2, and the workers pass the denim fabric through the feed roller 4, the extrusion assembly 5 and the dewatering assembly 6 in sequence, and then immerse it in the dyeing tank 1. During the movement of the fabric, the multiple feed rollers 4 can fully immerse the denim fabric. After being squeezed by the upper pressure roller 53 and the lower pressure roller 52 in the extrusion assembly 5, the denim fabric's porous structure and elastic material properties allow it to be easily compressed when subjected to external force and quickly return to its original shape after the external force is removed, thereby improving the water absorption effect. This allows the denim fabric to absorb more dyeing liquid, thus shortening the soaking time.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dyeing apparatus for denim production comprising a dyeing bath (1), characterized in that: The dyeing pool (1) is provided with a cloth feeding mechanism, which comprises a lift (2), a rack (3), feed rollers (4), an extrusion assembly (5) and a dehydration assembly (6). The lift (2) is installed at the bottom of the dyeing pool (1), the rack (3) is installed on the lift (2) and is driven to lift by the lift (2), a plurality of feed rollers (4) are provided and are rotatably connected to the rack (3) at intervals, the extrusion assembly (5) is installed on the rack (3), an elevated frame is fixed to the top of the dyeing pool (1), the dehydration assembly (6) is installed on the elevated frame, and the extrusion assembly (5) and the dehydration assembly (6) can extrude the denim.

2. The dyeing apparatus for denim production according to claim 1, characterized in that: The extrusion assembly (5) and the dehydration assembly (6) each comprise a vertical frame (51), a lower pressing roller (52), an upper pressing roller (53) and a servo linear guide rail sliding table (54). One end of the lower pressing roller (52) is rotatably connected to the vertical frame (51), the servo linear guide rail sliding table (54) is fixed to the vertical frame (51), and one end of the upper pressing roller (53) is rotatably installed on the sliding table of the servo linear guide rail sliding table (54).

3. The dyeing apparatus for denim production according to claim 1, characterized in that: A guide roller (7) is further installed on the rack (3), the guide roller (7) is arranged on one side of the dehydration assembly (6) and at the bottom end of the dehydration assembly (6).

4. The dyeing apparatus for denim production according to claim 1, characterized in that: A pipeline (8) is further laid at the bottom of the dyeing pool (1), and a plurality of air outlets are mounted on the surface of the pipeline (8).

5. The dyeing apparatus for denim production according to claim 1, characterized in that: A circulating pipe (9) is installed on the side of the dyeing pool (1), and a circulating pump is installed in the circulating pipe (9).