A wet dyeing device for knitted fabric processing

By setting up an inverted U-shaped frame and a sinking component in the dyeing device, the problem of uneven dyeing caused by the floating of textile fabric was solved, achieving full-coverage dyeing of textile fabric and improving dyeing quality and efficiency.

CN224430977UActive Publication Date: 2026-06-30JIANGSU JINZHIMEI NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JINZHIMEI NEW MATERIALS CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing technologies, when textile fabrics are directly thrown into the dyeing pool, some of them float above the surface of the dyeing liquid, resulting in incomplete immersion, uneven dyeing, color differences, local light colors, and mottling, which affect the appearance quality of the fabric and product consistency. Furthermore, the floating areas may oxidize or fade, reducing the finished product qualification rate.

Method used

An inverted U-shaped frame is installed at the top of the dyeing device, and a sinking assembly, including a common cylinder and a sinking basket, is installed at the bottom. The textile fabric is sunk below the dyeing liquid surface through the sinking assembly to ensure complete immersion. An auxiliary unloading assembly is also provided to quickly unload the dyed fabric.

Benefits of technology

It achieves full-coverage dyeing of textiles, avoids uneven dyeing, improves dyeing quality and product qualification rate, and increases dyeing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a wet dyeing device for knitted fabric processing, relating to the field of knitted fabric dyeing technology. It includes a dyeing box, a guide slope, and an inverted U-shaped frame. A guide slope is fixedly installed on the top side of the dyeing box, and a guide plate is fixedly installed on the top of the guide slope. The guide slope and guide plate form an inclined feeding structure for the dyeing box. An inverted U-shaped frame is fixedly installed on the top of the dyeing box, and a sinking component is installed at the bottom of the inverted U-shaped frame. This utility model features an inverted U-shaped frame on the top of the dyeing box and a sinking component at the bottom of the inverted U-shaped frame. The sinking component can completely immerse the textile fabric below the dyeing liquid surface. The sinking component can effectively apply pressure to the textile fabric thrown into the dyeing liquid, causing it to sink and be completely submerged below the dyeing liquid surface. This structure can avoid uneven dyeing caused by the textile fabric being suspended due to buoyancy, ensuring that the dye fully penetrates all parts of the fabric, achieving uniform color, and improving dyeing quality and product qualification rate.
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Description

Technical Field

[0001] This utility model relates to the field of knitted fabric dyeing technology, and in particular to a wet dyeing device for knitted fabric processing. Background Technology

[0002] Textile fabrics are sheet-like woven materials made from natural or chemical fibers through spinning, weaving, and other processes. They are essential basic materials for clothing, home textiles, and industrial fabrics. To impart the desired colors, patterns, and decorative effects to textile fabrics and enhance their added value, dyeing is necessary. Dyeing not only improves the aesthetics of fabrics but also meets diverse market demands and achieves functional differentiation, making it a crucial step in textile production.

[0003] In existing technologies, when workers directly throw textile fabric into the dyeing tank, the fabric often partially floats above the dyeing liquid due to buoyancy, resulting in incomplete immersion in the dyeing liquid. The suspended portion cannot fully contact the dyeing liquid, causing uneven dyeing, color differences, local light colors, and mottling defects. This seriously affects the appearance quality of the fabric and product consistency. The floating area may also oxidize or fade due to prolonged exposure to air, further reducing the dyeing effect and the finished product qualification rate, and bringing the risk of rework or scrap to subsequent processes. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art where, when workers directly throw textile fabric into the dyeing tank, part of the fabric often floats above the dyeing liquid due to buoyancy, resulting in incomplete immersion in the dyeing liquid. The suspended part cannot fully contact the dyeing liquid, causing uneven dyeing, color difference, local light color, and mottling defects, which seriously affect the appearance quality and product consistency of the fabric. The floating area may also oxidize or fade due to prolonged exposure to air, further reducing the dyeing effect and the finished product qualification rate, and bringing the risk of rework or scrap to subsequent processes. Therefore, a wet dyeing device for knitted fabric processing is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wet dyeing device for knitted fabric processing includes a dyeing box, a guide slope, and an inverted U-shaped frame. The guide slope is fixedly installed on the top side of the dyeing box, and a guide plate is fixedly installed on the top of the guide slope. The guide slope and the guide plate form an inclined feeding structure of the dyeing box.

[0007] The dyeing tank is fixedly equipped with an inverted U-shaped frame at the top and a sinking component is provided at the bottom of the inverted U-shaped frame. The sinking component sinks the textile floating on the dyeing liquid surface of the dyeing tank to below the dyeing liquid surface.

[0008] The sinking assembly includes a common cylinder and a sinking basket. The common cylinder is fixedly installed on the top of the inverted U-shaped frame, and the sinking basket is fixedly installed at the output end of the common cylinder. An auxiliary unloading assembly is installed on the sinking basket to assist the sinking basket in quickly releasing the dyed textile fabric.

[0009] Optionally, the auxiliary unloading assembly includes a top crossbar, a transfer bar, and a bottom crossbar. An edge block is fixedly installed on the top of the side of the sinking basket away from the guide slope. A vertical mesh plate is rotatably connected to the side of the edge block. A lifting handle is fixedly installed on the bottom of the side of the vertical mesh plate. A bottom slope is rotatably connected to the bottom of the sinking basket away from the vertical mesh plate. The top of the bottom slope is set as an inclined surface and has mesh holes arranged at equal intervals.

[0010] Optionally, a top crossbar is fixedly installed at one end of the vertical mesh plate pivot, a bottom crossbar is fixedly installed at one end of the bottom slope pivot, and a horizontal bar is fixedly installed on the side of the sinking basket.

[0011] Optionally, a rectangular groove is provided on the side of the transmission rod, one end of the horizontal rod extends into the rectangular groove, the top end of the transmission rod abuts against the bottom of the top horizontal bar, and the bottom end of the transmission rod abuts against the top of the bottom horizontal bar.

[0012] Optionally, an auxiliary column is fixedly provided on the top of the sinking basket, and the top of the auxiliary column extends out from the top of the inverted U-shaped frame.

[0013] Optionally, limit frames are fixedly provided on both sides of the horizontal rod and the two ends of the horizontal rod are the same width as the rectangular groove.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This utility model features an inverted U-shaped frame at the top of the dyeing tank, with a sinking component at the bottom. This sinking component completely immerses the textile fabric below the dyeing solution surface. It effectively applies pressure to the fabric thrown into the dyeing solution, causing it to sink and become completely submerged. This structure avoids uneven dyeing caused by buoyancy, ensuring the dye fully penetrates all parts of the fabric, achieving uniform color, and improving dyeing quality and product qualification rate.

[0016] 2. This invention is equipped with an auxiliary unloading component on the side of the storage basket of the sinking component. After the sinking component pulls the dyed textile fabric out of the dyeing box, the auxiliary unloading component can quickly unload the textile fabric in the storage basket, thereby improving the efficiency of the entire dyeing device in transferring textile fabric. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 for Figure 1 Another perspective structural diagram.

[0019] Figure 3 This is a structural diagram of the sinking basket and its connecting parts.

[0020] Figure 4 This is a structural diagram of the transmission rod and its connecting parts.

[0021] In the diagram: 1. Bottom slope; 2. Guide plate; 3. Guide slope; 4. Common cylinder; 5. Auxiliary column; 6. Inverted U-shaped frame; 7. Dyeing box; 8. Lifting handle; 9. Sinking basket; 91. Vertical mesh plate; 10. Edge block; 11. Top horizontal bar; 12. Bottom horizontal bar; 13. Transfer rod; 14. Rectangular groove; 15. Horizontal bar; 16. Limiting frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A wet dyeing device for knitted fabric processing includes a dyeing box 7 with a guide slope 3 fixedly installed on the top side, a guide plate 2 fixedly installed on the top of the guide slope 3, the guide slope 3 and the guide plate 2 forming an inclined feeding structure of the dyeing box 7, an inverted U-shaped frame 6 fixedly installed on the top of the dyeing box 7, and a sinking component installed at the bottom of the inverted U-shaped frame 6. The sinking component sinks the textile fabric floating on the dyeing liquid surface of the dyeing box 7 to below the dyeing liquid surface.

[0024] The sinking assembly includes a common cylinder 4 and a sinking basket 9. The common cylinder 4 is fixedly installed on the top of the inverted U-shaped frame 6. The sinking basket 9 is fixedly installed at the output end of the common cylinder 4. An auxiliary column 5 is fixedly installed on the top of the sinking basket 9. The top of the auxiliary column 5 extends out from the top of the inverted U-shaped frame 6. The auxiliary column 5 assists the sinking basket 9 to move stably in the vertical direction. An auxiliary unloading assembly is installed on the sinking basket 9. The auxiliary unloading assembly assists the sinking basket 9 to quickly release the dyed textile fabric.

[0025] The auxiliary unloading assembly includes a top crossbar 11, a transfer bar 13, and a bottom crossbar 12. An edge block 10 is fixedly installed on the top of the side of the sinking basket 9 away from the guide slope 3. A vertical mesh plate 91 is rotatably connected to the side of the edge block 10. A lifting handle 8 is fixedly installed on the bottom of the side of the vertical mesh plate 91. A bottom slope 1 is rotatably connected to the bottom of the sinking basket 9 away from the vertical mesh plate 91. The top of the bottom slope 1 is set as an inclined surface and has mesh holes arranged at equal intervals. The lower end of the bottom slope 1 is close to the side of the vertical mesh plate 91.

[0026] A top horizontal bar 11 is fixedly installed at one end of the vertical mesh plate 91 pivot, a bottom horizontal bar 12 is fixedly installed at one end of the bottom slope 1 pivot, a horizontal bar 15 is fixedly installed on the side of the sunken basket 9, a rectangular groove 14 is opened on the side of the transfer rod 13, one end of the horizontal bar 15 extends into the rectangular groove 14, the top end of the transfer rod 13 abuts against the bottom of the top horizontal bar 11, and the bottom end of the transfer rod 13 abuts against the top of the bottom horizontal bar 12. Limit frames 16 are fixedly installed on both sides of the horizontal bar 15 and the rectangular groove 14. The two ends of the horizontal bar 15 are the same width as the rectangular groove 14.

[0027] It should be added that the weight of the end of the bottom slope 1 away from the vertical mesh plate 91 is set appropriately so that the bottom slope 1 will not rotate when the textile fabric is placed on it.

[0028] The specific implementation steps and principles of this utility model are as follows:

[0029] In the initial state, the vertical mesh plate 91 adheres to the side of the sinking basket 9 due to gravity. Since the top of the bottom slope 1 is an inclined surface, the end of the bottom slope 1 away from the vertical mesh plate 91 is heavier. The vertical mesh plate 91 holds the bottom horizontal bar 12 down through the top horizontal bar 11 and the transfer bar 13, keeping the bottom slope 1 on a horizontal plane.

[0030] Workers guide the textile fabric into the sinking basket 9 via the guide ramp 3, and then activate the common cylinder 4. The common cylinder 4 drives the sinking basket 9 to sink completely into the dyeing box 7. Once the textile fabric inside the sinking basket 9 has been dyed, the common cylinder 4 retracts.

[0031] Finally, by manually lifting handle 8, the vertical mesh plate 91 is lifted. The vertical mesh plate 91 pushes the transmission rod 13 down through the top horizontal bar 11. The bottom end of the transmission rod 13 pushes the bottom horizontal bar 12 to rotate around the bottom slope 1 pivot, the bottom slope 1 is lifted, and the textile fabric at the top of the bottom slope 1 is unloaded.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wet dyeing apparatus for processing of knitted fabric, comprising a dyeing tank (7), a guide slope (3), an inverted U-shaped frame (6), characterized in that, The dyeing box (7) has a guide slope (3) fixedly installed on the top side, and a guide plate (2) fixedly installed on the top of the guide slope (3). The guide slope (3) and the guide plate (2) together form the inclined feeding structure of the dyeing box (7). The dyeing tank (7) is fixedly provided with an inverted U-shaped frame (6) at the top, and a sinking component is provided at the bottom of the inverted U-shaped frame (6). The sinking component sinks the textile fabric floating on the dyeing liquid surface of the dyeing tank (7) to below the dyeing liquid surface. The sinking assembly includes a common cylinder (4) and a sinking basket (9). The common cylinder (4) is fixedly installed on the top of the inverted U-shaped frame (6). The sinking basket (9) is fixedly installed at the output end of the common cylinder (4). An auxiliary unloading assembly is installed on the sinking basket (9). The auxiliary unloading assembly assists the sinking basket (9) in quickly releasing the dyed textile fabric.

2. The wet dyeing apparatus for knitted fabric processing according to claim 1, characterized in that, The auxiliary unloading assembly includes a top crossbar (11), a transfer bar (13), and a bottom crossbar (12). An edge block (10) is fixedly installed on the top of the side of the sinking basket (9) away from the guide slope (3). A vertical mesh plate (91) is rotatably connected to the side of the edge block (10). A lifting handle (8) is fixedly installed on the bottom of the side of the vertical mesh plate (91). A bottom slope (1) is rotatably connected to the bottom of the sinking basket (9) away from the vertical mesh plate (91). The top of the bottom slope (1) is set as an inclined surface and has mesh holes arranged at equal intervals.

3. The wet dyeing apparatus for knitted fabric processing according to claim 2, characterized in that, A top horizontal bar (11) is fixedly installed at one end of the rotating shaft of the vertical mesh plate (91), a bottom horizontal bar (12) is fixedly installed at one end of the rotating shaft of the bottom slope (1), and a horizontal bar (15) is fixedly installed on the side of the sunken basket (9).

4. The wet dyeing apparatus for knitted fabric processing according to claim 3, characterized in that, The transmission rod (13) has a rectangular groove (14) on its side. One end of the horizontal rod (15) extends into the rectangular groove (14). The top end of the transmission rod (13) abuts against the bottom of the top horizontal bar (11), and the bottom end of the transmission rod (13) abuts against the top of the bottom horizontal bar (12).

5. The wet dyeing apparatus for knitted fabric processing according to claim 1, characterized in that, An auxiliary column (5) is fixedly installed on the top of the sinking basket (9), and the top of the auxiliary column (5) extends out from the top of the inverted U-shaped frame (6).

6. The wet dyeing apparatus for knitted fabric processing according to claim 4, characterized in that, The horizontal rod (15) is fixedly provided with limit frames (16) on both sides of the rectangular groove (14), and the two ends of the horizontal rod (15) are the same width as the rectangular groove (14).