A cloth dyeing device

By using pressure rollers and pressure blocks to compress the fabric and remove excess dye, the problem of improper dye treatment on the fabric after dyeing is solved, thus improving dyeing efficiency and quality.

CN224478245UActive Publication Date: 2026-07-10LIANYUNGANG AOHENG GARMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIANYUNGANG AOHENG GARMENT CO LTD
Filing Date
2025-05-30
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing fabric dyeing equipment suffers from poor dyeing results due to improper handling of excess dye on the fabric after dyeing, and the fabric is prone to spreading out during the conveying process, affecting dyeing efficiency.

Method used

The system employs a pressure roller and pressure block structure. The pressure roller and pressure block work together to compress the fabric and remove excess dye. The lifting mechanism adjusts the movement of the pressure roller to improve dyeing efficiency and quality.

Benefits of technology

It effectively removes excess dye from the fabric, ensures the fabric is transported smoothly, improves dyeing efficiency and quality, and has a reasonable structure that facilitates subsequent drying.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224478245U_ABST
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Abstract

The utility model discloses a cloth dyeing device, including dyeing pool, the left side upper end of this dyeing pool is provided with the feeding roller, the right side upper end is provided with the discharge roller, and the pool bottom left side, the middle side and the right side of dyeing pool all are provided with the conveying roller, and the cloth that needs to be dyed passes the left side feeding roller feeding, passes three conveying rollers of pool bottom again and feeds, realizes the discharge from discharge roller, be provided with dye in the dyeing pool. The cloth that needs to be dyed in the device enters the dyeing pool through the feeding roller, then passes three conveying rollers and is conveyed downward, realizes the discharge through the discharge roller of upside after again, and be provided with dye in the dyeing pool, and the cloth is soaked and dyed through dye when passing the dyeing pool, realizes the discharge from the discharge roller when corresponding complete dyeing, and the structure is reasonable.
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Description

Technical Field

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

[0002] In existing technologies, fabric dyeing is a complex process involving multiple aspects such as fiber characteristics, dye selection, dyeing equipment, and process parameters. Existing fabric dyeing equipment and methods typically fall into several categories:

[0003] Dyeing methods and dyeing machines: Suitable for small-batch, multi-variety dyeing, such as rope dyeing machines (for cotton knitted fabrics) and high-temperature, high-pressure overflow dyeing machines (for polyester woven fabrics).

[0004] Padding dyeing method and padding machine: Suitable for continuous production, the process is "padding with dye liquor → pre-drying → baking (color fixing)", if padding with vat dyes requires passing through a vat steamer.

[0005] Roll dyeing method and roll dyeing machine: Suitable for sensitive fabrics such as silk and wool. The fabric moves back and forth in the dye bath by a roller, with low tension.

[0006] In existing technologies, immersion dyeing is the most common method. Its structure usually involves directly setting up an immersion dyeing tank, and then conveying the fabric directly into the immersion dyeing tank through a conveyor. The fabric is immersed in the tank as it is conveyed by the conveyor, thereby achieving the purpose of dyeing. This method has high dyeing efficiency and is usually not complicated in structure, making it suitable for small-batch dyeing production.

[0007] For example, the "A Fabric Dyeing Device" disclosed in Publication (Announcement) No. CN222821870U provides a fabric dyeing device where the conveying structure is located in the dyeing zone to achieve fabric dyeing, and the conveying structure is located in the non-dyeing zone to achieve fabric installation, thus providing an efficient fabric dyeing device that does not affect the health of the installers.

[0008] For example, the "Dyeing Apparatus for Clothing Fabric" disclosed in Publication (Announcement) No. CN207699847U includes a fabric pressing mechanism, which includes a magnetic block attracted to the end of the take-up roller and a pressing plate extending to the side wall of the take-up roller; and a stirring device is provided to stir the dyeing fabric by reciprocating rotation, so as to improve the dyeing efficiency through stirring.

[0009] The above technical solutions all involve setting up a dyeing pool and a corresponding conveying mechanism in the dyeing pool for conveying. When making improvements, a pressing device and a stirring device can also be added. However, the dyeing mechanism mentioned above still has some problems in actual use. One problem is the treatment of dye on the fabric after dyeing. When the fabric leaves the dyeing pool after dyeing, it will drip down if the dye is full. Therefore, it is necessary to remove the excess dye on the fabric. In the existing technology, the excess dye is usually removed by the natural gravity of the dye, which leads to poor dyeing effect.

[0010] In addition, in existing technologies, the fabric needs to be rolled and pressed before entering the dyeing tank to make it compact and avoid affecting the dyeing effect. However, in existing technologies, the fabric is directly put into the dyeing tank, which cannot effectively improve the dyeing effect.

[0011] Therefore, in order to solve the above problems, it is necessary to develop a fabric dyeing device with a reasonable structure that can effectively improve the dyeing effect and quality. Utility Model Content

[0012] The purpose of this invention is to address the shortcomings of existing technologies by providing a fabric dyeing device; the technical solution is as follows:

[0013] A fabric dyeing apparatus includes a dyeing tank. A feed roller is provided at the upper left end of the dyeing tank, and a discharge roller is provided at the upper right end. Conveyor rollers are provided at the left, middle, and right sides of the bottom of the dyeing tank. The fabric to be dyed is fed in through the feed roller on the left side, then fed through the three conveyor rollers at the bottom of the tank, and finally discharged from the discharge roller. Dye is provided in the dyeing tank.

[0014] Pressure-resistant blocks are installed on the upper left and upper right walls of the dyeing pool, and a mounting base is correspondingly provided between the pressure-resistant blocks on both sides. Spring grooves are provided on both the left and right sides of the mounting base, and spring components are correspondingly provided in the spring grooves. Spring rods are also installed in the spring grooves. The spring rods extend to both sides under the action of the spring components, and pressure rollers are installed at the ends of the spring rods. The positions of the pressure rollers on both sides correspond to the positions of the pressure-resistant blocks on both sides.

[0015] Correspondingly, the fabric on both sides is positioned between the pressure roller and the pressure block. The pressure roller presses the fabric onto the pressure block. As the fabric is conveyed forward with the roller, the pressure roller rotates and presses the fabric accordingly.

[0016] Furthermore, both sides of the feed roller and the discharge roller are equipped with drive mechanisms, and the drive mechanisms on the feed roller and the discharge roller move synchronously, so that the material can be smoothly conveyed in the dyeing tank.

[0017] Furthermore, the dyeing tank is also equipped with stirring blades, which are positioned between the fabrics on both sides, and a stirring motor for driving the stirring blades to rotate is installed on the outer wall of the dyeing tank.

[0018] Furthermore, the mounting base has two spring slots on both the left and right sides. Spring components and spring rods are installed in the two spring slots on the left and the two spring slots on the right, and a U-shaped frame is installed at the end of the spring rod on the same side. The pressure roller is installed on the U-shaped frame and can rotate on the U-shaped frame.

[0019] Furthermore, the width dimensions of the pressure roller and the pressure block are set accordingly, so that the width of the pressure roller and the width of the pressure block are greater than the width of the fabric, so that the entire fabric is pressed down by the pressure roller.

[0020] Furthermore, a lifting mechanism is provided above the mounting base. The main shaft of the lifting mechanism extends downward and is fixed to the mounting base. The lifting mechanism drives the mounting base to move up and down, and correspondingly, the pressure rollers on both sides also move up and down.

[0021] Furthermore, the height of the pressure blocks on both sides is set accordingly, and the vertical movement range of the lifting mechanism is set accordingly, so that the vertical movement distance of the pressure rollers on both sides does not exceed the height of the pressure blocks.

[0022] Furthermore, the height of the fuel in the dyeing pool is lower than the height of the pressure block and the pressure roller.

[0023] Beneficial effects: This utility model has the following beneficial effects:

[0024] 1) In this device, the fabric to be dyed enters the dyeing tank through the feed roller, and then is conveyed downward through three conveyor rollers. After that, it is discharged through the discharge roller on the upper side. The dyeing tank is equipped with dye. When the fabric passes through the dyeing tank, it is immersed in the dye and dyed. When it is discharged from the discharge roller, the dyeing is completed. The structure is reasonable.

[0025] 2) The combination of the pressure roller and the pressure block in this device can press the fabric tightly. The pressure roller and the pressure block on the left side are located at the position of the feed roller. The pressure roller presses on the pressure block mainly to flatten and press the fabric when it enters the dyeing tank. Because the fabric may become uneven during the conveying process, the pressure roller on the left side can flatten the fabric and allow it to enter the dyeing tank downwards, which can increase the dyeing efficiency and quality and prevent the fabric from becoming uneven or spreading out, thus affecting the dyeing effect.

[0026] 3) In this device, the pressure roller and pressure block on the right side of the dyeing tank are located at the position of the discharge roller. When the fabric moves upward, the pressure roller presses the fabric onto the discharge roller. The pressure roller also rotates with the fabric. On the one hand, it does not affect the fabric conveying, and on the other hand, it can remove excess dye from the fabric. By rotating and pressing the fabric with the pressure roller, excess dye on the fabric will be removed accordingly, effectively improving dyeing efficiency and quality, and facilitating the subsequent fabric drying work. The structure is reasonably designed.

[0027] 4) A lifting mechanism is also provided above the mounting base in this device. The lifting mechanism can drive the mounting base to move up and down accordingly. Then the pressure rollers on both sides of the mounting base can also move up and down. The height of the pressure blocks on both sides is set accordingly, so that the pressure rollers on both sides can move up and down in the area of ​​the pressure blocks. During the movement, the fabric is pressed tightly. On the one hand, it improves the flattening and pressing of the fabric on the left side; on the other hand, it improves the dye removal efficiency on the fabric on the right side and improves the dyeing effect. Attached Figure Description

[0028] Figure 1 This is a structural diagram of the dyeing pool in this utility model;

[0029] Figure 2 for Figure 1 AA view;

[0030] Figure 3 This is a structural diagram of the present utility model;

[0031] Figure 4 for Figure 3 BB view;

[0032] Figure 5 This is a structural diagram of the lifting mechanism in this utility model;

[0033] The components include: dyeing tank 1; feed roller 2; discharge roller 3; conveyor roller 4; fabric 5; pressure block 6; mounting base 7; spring groove 8; spring component 9; spring rod 10; pressure roller 11; stirring blade 12; stirring motor 13; U-shaped frame 14; and lifting mechanism 15. Detailed Implementation

[0034] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented under the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0035] Example 1

[0036] like Figure 1As shown, a fabric dyeing device in this embodiment includes a dyeing pool 1. The upper left side of the dyeing pool 1 is provided with a feeding roller 2, and the upper right side is provided with a discharging roller 3. Conveying rollers 4 are provided on the left, middle and right sides of the bottom of the dyeing pool 1. The fabric 5 to be dyed is fed through the feeding roller 2 on the left side, then fed through the three conveying rollers 4 at the bottom of the pool, and then discharged from the discharging roller 3. Dye is provided in the dyeing pool 1.

[0037] like Figure 3 As shown, pressure-resistant blocks 6 are installed on the upper left and upper right walls of the dyeing pool 1, and a mounting seat 7 is correspondingly provided between the two pressure-resistant blocks 6. Spring grooves 8 are correspondingly provided on the left and right sides of the mounting seat 7, and spring components 9 are correspondingly provided in the spring grooves 8. Spring rods 10 are also installed in the spring grooves 8. The spring rods 10 extend to both sides under the action of the spring components 9, and pressure rollers 11 are also installed at the ends of the spring rods 10. The positions of the pressure rollers 11 on both sides correspond to the positions of the pressure-resistant blocks 6 on both sides.

[0038] Correspondingly, the fabric 5 on both sides is positioned between the pressure roller 11 and the pressure block 6. The pressure roller 11 presses the fabric 5 onto the pressure block 6. When the fabric 5 is conveyed forward with the roller body, the pressure roller 11 rotates accordingly and presses the fabric 5.

[0039] Both sides of the feed roller 2 and the discharge roller 3 are equipped with drive mechanisms, and the drive mechanisms on the feed roller 2 and the discharge roller 3 move synchronously, so that the material can be smoothly conveyed in the dyeing pool 1.

[0040] like Figure 2 As shown, the dyeing tank 1 is also equipped with stirring blades 12, which are arranged between the fabrics 5 on both sides. A stirring motor 13 for driving the stirring blades 12 to rotate is also installed on the outer wall of the dyeing tank 1.

[0041] like Figure 4 As shown, there are two spring grooves 8 on the left and right sides of the mounting base 7. Spring elements 9 and spring rods 10 are installed in the two spring grooves 8 on the left and the two spring grooves 8 on the right. A U-shaped frame 14 is installed on the end of the spring rod 10 on the same side. The pressure roller 11 is installed on the U-shaped frame 14 and can rotate on the U-shaped frame 14.

[0042] The width dimensions of the pressure roller 11 and the pressure block 6 are set accordingly, so that the width of the pressure roller 11 and the width of the pressure block 6 are greater than the width of the fabric 5, so that the entire fabric 5 is pressed down by the pressure roller 11.

[0043] The specific structure and working principle of this embodiment are as follows: Figure 1As shown, in this embodiment, the fabric to be dyed enters the dyeing pool through the feed roller, then is conveyed downward through three conveyor rollers, and then discharged through the upper discharge roller. The dyeing pool is equipped with dye, and the fabric is soaked and dyed by the dye when it passes through the dyeing pool. The dyeing is completed when the fabric is discharged from the discharge roller.

[0044] After dyeing is complete, excess dye will remain on the fabric, which needs to be removed. In this device, a mounting base is set above the dyeing tank, and spring grooves are set on both sides of the mounting base. Spring components and spring rods are set in the spring grooves. After the spring rods on both sides extend outward, U-shaped frames are installed, and pressure rollers are installed on the U-shaped frames. Pressure blocks are installed at the upper positions on both sides of the dyeing tank. The positions of the pressure blocks on both sides correspond to the positions of the pressure rollers on both sides. Under the action of the spring components, the pressure rollers on both sides press against the pressure blocks, and the fabric on both sides is placed between the pressure rollers and the pressure blocks.

[0045] The fabric can be pressed tightly by the cooperation of the pressure roller and the pressure block. The pressure roller and the pressure block on the left side are located at the position of the feed roller. The pressure roller presses on the pressure block mainly to flatten and tighten the fabric when it enters the dyeing tank. This is because the fabric may become uneven during the conveying process. After being flattened by the pressure roller on the left side, the fabric enters the dyeing tank downwards, which can increase the dyeing efficiency and quality, and prevent the fabric from becoming uneven or spreading out, which would affect the dyeing effect.

[0046] The pressure roller and pressure block on the right side of the dyeing tank are located at the outlet roller position. As the fabric moves upward, the pressure roller presses the fabric onto the outlet roller. The pressure roller also rotates, which does not affect the fabric conveying and removes excess dye from the fabric. By rotating and pressing the fabric with the pressure roller, excess dye on the fabric will be removed, effectively improving dyeing efficiency and quality, and facilitating subsequent fabric drying. The structure is reasonably designed.

[0047] Example 2

[0048] like Figure 5 As shown, this embodiment is a further improvement on the basis of embodiment 1. In this embodiment, a lifting mechanism 15 is also provided above the mounting base 7. The main shaft of the lifting mechanism 15 extends downward and is fixed on the mounting base 7. The lifting mechanism 15 drives the mounting base 7 to move up and down accordingly, and the pressure rollers 11 on both sides also move up and down accordingly.

[0049] The height of the pressure blocks 6 on both sides is set accordingly, and the vertical movement range of the lifting mechanism 15 is set accordingly, so that the vertical movement distance of the pressure rollers 11 on both sides does not exceed the height of the pressure blocks 6; in this embodiment, the height of the fuel in the dyeing pool 1 is lower than the height of the pressure blocks 6 and the pressure rollers 11.

[0050] Based on the technical solution of Embodiment 1, this embodiment adds a lifting mechanism above the mounting base. The lifting mechanism can move the mounting base up and down, and the pressure rollers on both sides of the mounting base can also move up and down. The height of the pressure blocks on both sides is also set accordingly, so that the pressure rollers on both sides can move up and down in the area of ​​the pressure blocks. During the movement, the fabric is pressed tightly, which improves the flattening and pressing of the fabric on the left side and improves the dye removal efficiency on the fabric on the right side, thus improving the dyeing effect.

[0051] The above-described specific embodiments are merely preferred embodiments of this utility model and are not intended to limit the implementation of this utility model or the scope of the claims. All equivalent changes and modifications made in accordance with the scope of protection of this utility model patent application should be included within the scope of this utility model patent application.

Claims

1. A fabric dyeing apparatus, characterized in that: The dyeing pool (1) includes a feeding roller (2) at the upper left end and a discharging roller (3) at the upper right end. Conveying rollers (4) are provided on the left, middle and right sides of the bottom of the dyeing pool (1). The fabric (5) to be dyed is fed through the feeding roller (2) on the left, then fed through the three conveying rollers (4) at the bottom of the pool, and then discharged from the discharging roller (3). Dye is provided in the dyeing pool (1). Pressure-resistant blocks (6) are installed on the upper left and upper right sides of the dyeing pool (1), and a mounting seat (7) is correspondingly provided between the pressure-resistant blocks (6) on both sides. Spring grooves (8) are correspondingly provided on the left and right sides of the mounting seat (7). Spring components (9) are correspondingly provided in the spring grooves (8), and spring rods (10) are also installed in the spring grooves (8). The spring rods (10) extend to both sides under the action of the spring components (9), and pressure rollers (11) are also installed at the ends of the spring rods (10). The positions of the pressure rollers (11) on both sides correspond to the positions of the pressure-resistant blocks (6) on both sides. Correspondingly, the fabric (5) on both sides is positioned between the pressure roller (11) and the pressure block (6). The pressure roller (11) presses the fabric (5) onto the pressure block (6). When the fabric (5) is conveyed forward with the roller body, the pressure roller (11) rotates and presses the fabric (5) accordingly.

2. The fabric dyeing apparatus according to claim 1, characterized in that: Both sides of the feed roller (2) and the discharge roller (3) are equipped with drive mechanisms, and the drive mechanisms on the feed roller (2) and the discharge roller (3) move synchronously, so that the material can be smoothly conveyed in the dyeing pool (1).

3. The fabric dyeing apparatus according to claim 1, characterized in that: The dyeing tank (1) is also equipped with stirring blades (12), which are arranged between the fabrics (5) on both sides, and a stirring motor (13) for driving the stirring blades (12) to rotate is installed on the outer wall of the dyeing tank (1).

4. The fabric dyeing apparatus according to claim 1, characterized in that: The mounting base (7) has two spring grooves (8) on the left and right sides. Spring components (9) and spring rods (10) are installed in the two spring grooves (8) on the left and the two spring grooves (8) on the right. A U-shaped frame (14) is installed on the end of the spring rod (10) on the same side. The pressure roller (11) is installed on the U-shaped frame (14) and can rotate on the U-shaped frame (14).

5. A fabric dyeing apparatus according to claim 4, characterized in that: The width dimensions of the pressure roller (11) and the pressure block (6) are set accordingly, so that the width of the pressure roller (11) and the width of the pressure block (6) are greater than the width of the fabric (5), so that the entire fabric (5) is pressed down by the pressure roller (11).

6. A fabric dyeing apparatus according to claim 4, characterized in that: A lifting mechanism (15) is also provided above the mounting base (7). The main shaft of the lifting mechanism (15) extends downward and is fixed on the mounting base (7). The lifting mechanism (15) drives the mounting base (7) to move up and down. Correspondingly, the pressure rollers (11) on both sides also move up and down.

7. A fabric dyeing apparatus according to claim 6, characterized in that: The height of the pressure blocks (6) on both sides is set accordingly, and the vertical movement range of the lifting mechanism (15) is set accordingly, so that the vertical movement distance of the pressure rollers (11) on both sides does not exceed the height of the pressure blocks (6).

8. A fabric dyeing apparatus according to claim 6, characterized in that: The height of the fuel in the dyeing pool (1) is lower than the height of the pressure block (6) and the pressure roller (11).