Fabric dyeing and finishing equipment with uniform coloring

By using a combination of agitator and drying chamber in the dyeing and finishing equipment, the problem of uneven fabric dyeing was solved, achieving uniform dyeing and efficient drying, and reducing the cost of dye liquor and energy consumption.

CN224299608UActive Publication Date: 2026-05-29NANTONG CHAOYANG BLEACHING&DYEING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG CHAOYANG BLEACHING&DYEING CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing dyeing and finishing equipment results in uneven dyeing of fabrics, leading to poor dyeing and finishing effects.

Method used

The fabric processing and dyeing equipment includes a dyeing tank, a stirrer, a liquid extrusion structure, and a drying box. The dye liquor is stirred by the stirring blades of the stirrer to make it evenly mixed. Excess dye liquor is squeezed out by the pressure roller. The fabric is heated in the drying box and dried faster by a hot air blower. The air pump removes the hot and humid air to recover heat.

Benefits of technology

It achieves uniform fabric coloring, improves dyeing effect, saves dyeing liquor usage cost, and reduces energy consumption through heat recovery and utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fabric processing dyeing and finishing equipment that evenness is colored, include: dyeing pool, agitator, extrude liquid structure and drying box. The first end on dyeing pool and the tail end on rotatable installation guide roller. The agitator includes shaft pipe and a plurality of stirring vane, and the shaft pipe rotatable installation is in the dyeing pool, and the stirring vane is connected to the shaft pipe, and the fabric is around the stirring vane, and the shaft pipe wall is provided with the air injection hole. Extrude liquid structure includes two pressure rollers, and one pressure roller rotatable installation is in the dyeing pool, and the adjustable installation has the support frame in the dyeing pool position, and the other pressure roller rotatable installation is in the support frame. The both ends of drying box are provided with the feed port, and the bottom of drying box is connected hot -blast machine through the air inlet pipe, and the top of drying box is connected the air -exhaust pump through the suction pipe. The open end of shaft pipe rotatable connection gas pipe, and the gas pipe connects the exhaust port of air -exhaust pump. The utility model solves the problem that the fabric is dyed and finished when the current dyeing and finishing equipment carries out dyeing and finishing processing, and the fabric is unevenly colored, and the dyeing and finishing effect is not good.
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Description

Technical Field

[0001] This utility model relates to the field of fabric processing technology, specifically to a fabric processing and dyeing equipment with uniform coloring. Background Technology

[0002] Dyeing and finishing refers to the chemical treatment process applied to textile materials (fibers, yarns, and fabrics). The quality of dyeing and finishing has a significant impact on the usability of textiles. Currently, existing dyeing and finishing equipment typically places the fabric directly into the dye bath, which can lead to uneven coloring and reduced dyeing and finishing results.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a fabric processing and dyeing equipment with uniform coloring is provided to solve the problems of uneven coloring and poor dyeing and finishing effects when existing dyeing and finishing equipment processes fabrics.

[0005] To achieve the above objectives, a fabric processing and dyeing equipment with uniform coloring is provided, comprising:

[0006] A dyeing pool having opposing head and tail ends, wherein guide rollers for winding fabric are rotatably mounted on the head and tail ends respectively.

[0007] Multiple agitators are spaced apart along the length of the dyeing tank. Each agitator includes a shaft tube and multiple agitator blades. The shaft tube is rotatably installed inside the dyeing tank. The multiple agitator blades are spaced apart along the circumference of the shaft tube. One side of each agitator blade is connected to the shaft tube. The fabric is wrapped around the other side of the agitator blades of the multiple agitators. The shaft tube has multiple air jet holes on its wall.

[0008] The extrusion structure includes two opposing pressure rollers. One pressure roller is rotatably installed in the dyeing tank. A support frame is adjustablely installed on the inner side of the tail end of the dyeing tank. The other pressure roller is rotatably installed on the support frame. An extrusion gap is formed between the two pressure rollers.

[0009] A drying chamber is located on the outer side of the tail end of the dyeing tank. The drying chamber has feed ports at opposite ends for the fabric to be threaded through. A hot air blower is connected to the bottom of the drying chamber through an air inlet pipe. The top of the drying chamber is connected to the air inlet of an air pump through a suction pipe. The shaft tube has an open end and a closed end. An air supply pipe is rotatably connected to the open end. One end of the air supply pipe passes through the side wall of the dyeing tank and is connected to the exhaust port of the air pump.

[0010] Furthermore, the stirring blade has multiple through holes.

[0011] Furthermore, a waterproof and breathable membrane is installed in the jet hole.

[0012] Furthermore, a top support arc plate is connected to the other side of the stirring blade, and the inner arc surface of the top support arc plate is arranged facing the shaft tube.

[0013] Furthermore, limiting grooves are respectively formed on the inner walls of the opposite sides of the dyeing pool. The limiting grooves are arranged along the thickness direction of the fabric section between the guide roller on the tail end and the agitator near the tail end. Limiting protrusions are respectively formed at the opposite ends of the support frame. The limiting protrusions are slidably disposed in the limiting grooves. The dyeing pool is equipped with a driving component for driving the support frame.

[0014] Furthermore, the tail end of the dyeing pool is provided with a threaded through hole aligned with the support frame. The driving component is a driving screw, which is screwed into the threaded through hole. One end of the driving screw is rotatably connected to the support frame, and the other end of the driving screw extends to the outside of the dyeing pool and is connected to a handwheel.

[0015] Furthermore, the support frame has bearing arms formed at opposite ends, and sliding grooves are provided on opposite sides of the two bearing arms. The sliding grooves are arranged in the same direction as the limiting grooves. The two ends of the other pressure roller are rotatably connected to sliders. The sliders slide in the sliding grooves, and a push spring is connected between the sliders and the groove wall near the support frame.

[0016] Furthermore, a sliding rod is connected between the groove walls at opposite ends of the groove. The sliding rod is arranged along the length of the groove. The slider has a sliding hole. The sliding rod is movably inserted through the sliding hole. The push spring is sleeved on the sliding rod.

[0017] Furthermore, an air guide plate is installed on the inner side of the top of the drying oven.

[0018] Furthermore, the drying chamber is equipped with an air guide hood, which has a large opening and a small opening. The small opening is connected to the air inlet pipe, and the large opening is aligned with the lower side of the fabric. A flow divider is installed inside the air guide hood.

[0019] The beneficial effects of this invention are that the fabric processing and dyeing equipment of this invention, which ensures uniform dyeing, uses an agitator to press and limit the fabric, allowing the fabric to be fully immersed in the dye liquor for dyeing. On the other hand, when the fabric pulls the agitator to rotate, the agitator's blades stir the dye liquor, thereby ensuring uniform dye mixing, preventing sedimentation, and improving the dyeing effect of the fabric.

[0020] After the fabric is removed from the dye bath, two pressure rollers squeeze out excess dye, resulting in a more even distribution of dye on the fabric and facilitating subsequent drying. Excess dye is returned to the dye bath, saving on dye usage costs.

[0021] When the fabric passes through the drying chamber, the heating rollers heat the fabric, a hot air blower blows directly onto the fabric, and an air pump quickly removes the hot and humid air, accelerating the evaporation of moisture from the fabric and improving the drying efficiency. The removed hot and humid air is ejected through the jet holes in the shaft tube and impacts the dye liquor, further increasing the fluidity of the dye liquor and enhancing the stirring effect of the agitator. On the other hand, the heat from the hot and humid air is evenly absorbed by the dye liquor, reducing the energy consumption required for heating and maintaining the dye liquor temperature, thus achieving effective heat recovery and utilization. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a fabric processing and dyeing equipment with uniform coloring according to an embodiment of the present invention.

[0024] Figure 2 This is a rear view of the dyeing pool according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the stirrer according to an embodiment of the present invention.

[0026] Figure 4 This is a cross-sectional view of the stirrer according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the support frame according to an embodiment of the present utility model.

[0028] Figure 6 This is a schematic diagram of another way of winding the fabric according to an embodiment of the present utility model. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Reference Figures 1 to 5 As shown, this utility model provides a fabric processing and dyeing equipment for uniform coloring, including: a dyeing tank 1, a stirrer 3, a liquid extrusion structure and a drying box 6.

[0032] The dyeing pool 1 is rectangular in shape, with opposite head and tail ends. Guide rollers 11 are rotatably mounted on the head and tail ends of the dyeing pool 1, respectively. The dyeing pool 1 contains dye liquor and is equipped with a heating device for heating the dye liquor. The dye liquor heating device (such as a heat exchanger) used in the dyeing and finishing process is existing technology, and its specific structure will not be described in detail in this embodiment.

[0033] See Figure 1 As shown, multiple stirrers 3 are installed in the dyeing tank 1, and the multiple stirrers 3 are spaced apart along the length of the dyeing tank 1. In this embodiment, the number of stirrers 3 is two.

[0034] Specifically, in combination Figure 1 , Figure 3 and Figure 4 As shown, the agitator 3 includes a shaft tube 31 and multiple agitator blades 32. The shaft tube 31 is arranged along the width direction of the dyeing tank 1 and is rotatably mounted inside the dyeing tank 1. The agitator blades 32 are arranged along the length direction of the shaft tube 31, and the multiple agitator blades 32 are spaced apart along the circumference of the shaft tube 31. One side of each agitator blade 32 is connected to the shaft tube 31, and the fabric 2 is wrapped around the other side of the agitator blades 32 of the agitator 3.

[0035] In a preferred embodiment, a top support arc plate 321 is connected to the other side of the stirring blade 32, with the inner arc surface of the top support arc plate 321 facing the shaft tube 31. The fabric 2 is wrapped around the top support arc plates 321 of the multiple stirrers 3. The stirring blade 32 has multiple through holes b. By opening the through holes b, the resistance of the stirring blade 32 when rotating in the dye liquor can be reduced, and at the same time, the dye and solvent can be mixed more efficiently, thus improving the stirring effect.

[0036] The tube wall of the shaft tube 31 has multiple air jet holes a. In a preferred embodiment, a waterproof and breathable membrane is installed in the air jet holes a.

[0037] The extrusion structure is located on the upper part of the inner side of the tail end of the dyeing tank 1. The extrusion structure includes two pressure rollers 4, which are arranged along the width direction of the dyeing tank 1 and are positioned opposite each other. One pressure roller 4 is rotatably mounted inside the dyeing tank 1. A support frame 5 is adjustablely mounted on the inner side of the tail end of the dyeing tank 1, and the other pressure roller 4 is rotatably mounted on the support frame 5. An extrusion gap is formed between the two pressure rollers 4 for the fabric to pass through.

[0038] In this embodiment, limiting grooves are respectively formed on the inner walls of opposite sides of the dyeing pool 1, and the limiting grooves are arranged along the thickness direction of the fabric segment 21. Limiting protrusions 51 are respectively formed at opposite ends of the support frame 5, and the limiting protrusions 51 slide in the limiting grooves. The dyeing pool 1 is equipped with a driving component for driving the support frame 5.

[0039] The driving component is a drive screw 7. In this embodiment, a threaded hole is provided at the tail end of the dyeing tank 1, which is aligned with the support frame 5 and is arranged in the same direction as the limiting groove. The drive screw 7 is screwed into the threaded hole, one end of the drive screw 7 is rotatably connected to the support frame 5, and the other end of the drive screw 7 extends to the outside of the dyeing tank 1 and is connected to a handwheel.

[0040] By turning the handwheel, the support frame 5 is driven to move, thereby causing another pressure roller 4 on the support frame 5 to move closer to or further away from a pressure roller 4.

[0041] See Figure 5 As shown, in a preferred embodiment, support arms 52 are formed at opposite ends of the support frame 5. Slide grooves c are formed on opposite sides of the two support arms 52, and the slide grooves c are arranged in the same direction as the limiting grooves. Slide blocks 41 are rotatably connected to both ends of another pressure roller 4, and the slide blocks 41 slide within the slide grooves c. A push spring is connected between the slide blocks 41 and the groove wall of the slide groove c near the end of the support frame 5.

[0042] Furthermore, a slide rod 53 is connected between the walls of opposite ends of the slide groove c, and the slide rod 53 is arranged along the length direction of the slide groove c. The slider 41 has a sliding hole, and the slide rod 53 is movably inserted through the sliding hole of the slider 41. A push spring is sleeved on the slide rod 53.

[0043] By setting a push spring, the fabric is subjected to more even and smooth force when the two pressure rollers 4 squeeze it.

[0044] The drying chamber 6 is located on the outer side of the tail end of the dyeing tank 1. Feed ports for the fabric 2 to pass through are respectively opened at opposite ends of the drying chamber 6. Multiple electric heating rollers 65 are rotatably mounted inside the drying chamber 6, and the electric heating rollers 65 are arranged horizontally. After the fabric enters the drying chamber 6 through the feed port at one end, it is wound around the multiple electric heating rollers 65, and then exits through the feed port at the other end of the drying chamber 6. An operating opening is formed on one side of the drying chamber 6, and a door (not shown in the attached drawings) is installed at the operating opening.

[0045] The bottom of the drying oven 6 is connected to a hot air blower 61 via an air inlet pipe, and the top of the drying oven 6 is connected to the air inlet of an air pump 62 via a suction pipe.

[0046] In this embodiment, the shaft tube 31 has an open end and a closed end, and the open end of the shaft tube 31 is rotatably connected to the gas supply pipe 33 through a rotary joint. The end of the gas supply pipe 33 away from the shaft tube 31 passes through the side wall of the dyeing tank 1 and is connected to the exhaust port of the air pump 62.

[0047] In this embodiment, supports are installed on the inner walls of opposite sides of the dyeing tank 1, and both ends of the shaft tube 31 are rotatably mounted on the supports via bearings. A rotary joint is connected to the open end of the shaft tube 31, and one end of the gas supply pipe 33 passes through the side wall of the dyeing tank 1 and is connected to the rotary joint. The other ends of the two gas supply pipes 33 are connected to the exhaust port of the air pump 62 via a connector (Y-type tee). A sealing ring is provided between the gas supply pipe 33 and the side wall of the dyeing tank 1 to prevent leakage.

[0048] In use, the fabric dyeing and finishing equipment of this invention, which ensures uniform dyeing, involves external equipment (traction roller and take-up roller) pulling the fabric. The agitator 3 presses against and limits the fabric 2, ensuring full contact between the fabric 2 and the dye liquor. The fabric 2 pulls the agitator 3 to rotate, and the agitator blades 32 stir the dye liquor, resulting in uniform dye mixing, preventing sedimentation, and improving the dyeing effect of the fabric.

[0049] After fabric 2 is removed from the dye bath, the two pressure rollers 4 squeeze out the excess dye bath from the fabric, making the dye bath distribution on the fabric more even and facilitating subsequent drying of the fabric. The excess dye bath is returned to the dye bath, reducing the cost of using the dye bath.

[0050] After being squeezed out of the liquid, fabric 2 enters the drying chamber 6 for drying. Inside the drying chamber, fabric 2 is first heated by an electric heating roller 65, while simultaneously, hot air from a hot air blower 61 blows directly onto the fabric, accelerating the evaporation of moisture. An air pump 62 quickly removes the hot and humid air, accelerating the flow of hot air within the drying chamber 6 and improving drying efficiency.

[0051] The hot, humid air drawn by the vacuum pump 62 enters the shaft tube 31 through the air supply pipe 33. The hot, humid air is ejected from the jet hole a of the rotating shaft tube 31, impacting the dye liquor and further increasing its fluidity, thus enhancing the stirring effect of the stirrer 3. On the other hand, the hot, humid air is uniformly mixed with the dye liquor, and heat is transferred to the dye liquor, which can reduce the energy consumption required for the heating device to heat and keep the dye liquor warm, achieving effective heat recovery and utilization.

[0052] As a preferred embodiment, an air guide plate 63 is installed on the inner side of the top of the drying oven 6.

[0053] In a preferred embodiment, the drying chamber 6 is equipped with an air guide hood 64, which has a large opening and a small opening. The small opening of the air guide hood is connected to the air inlet pipe, and the large opening is aligned with the underside of the fabric 2. A flow divider 641 is installed inside the air guide hood 64. By setting the flow divider, the hot air output by the hot air blower 61 is distributed more evenly.

[0054] See Figure 6 As shown, in some embodiments, there are three agitators 3, and the fabric 2 is wound around the three agitators 3. After the external equipment (traction roller, take-up roller) pulls the fabric 2, the fabric 2 drives the three agitators 3 to rotate, so that the three agitators 3 stir the dye liquor on the upper and lower sides of the fabric 2, making the dye distribution more uniform and further improving the dyeing effect of the fabric 2.

[0055] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A fabric dyeing and finishing equipment for uniform coloring, characterized in that, include: A dyeing pool having opposing head and tail ends, wherein guide rollers for winding fabric are rotatably mounted on the head and tail ends respectively. Multiple agitators are spaced apart along the length of the dyeing tank. Each agitator includes a shaft tube and multiple agitator blades. The shaft tube is rotatably installed inside the dyeing tank. The multiple agitator blades are spaced apart along the circumference of the shaft tube. One side of each agitator blade is connected to the shaft tube. The fabric is wrapped around the other side of the agitator blades of the multiple agitators. The shaft tube has multiple air jet holes on its wall. The extrusion structure includes two opposing pressure rollers. One pressure roller is rotatably installed in the dyeing tank. A support frame is adjustablely installed on the inner side of the tail end of the dyeing tank. The other pressure roller is rotatably installed on the support frame. An extrusion gap is formed between the two pressure rollers. A drying chamber is located on the outer side of the tail end of the dyeing tank. The drying chamber has feed ports at opposite ends for the fabric to be threaded through. A hot air blower is connected to the bottom of the drying chamber through an air inlet pipe. The top of the drying chamber is connected to the air inlet of an air pump through a suction pipe. The shaft tube has an open end and a closed end. An air supply pipe is rotatably connected to the open end. One end of the air supply pipe passes through the side wall of the dyeing tank and is connected to the exhaust port of the air pump.

2. The fabric processing and dyeing equipment for uniform coloring according to claim 1, characterized in that, The stirring blade has multiple through holes.

3. The fabric processing and dyeing equipment for uniform coloring according to claim 1, characterized in that, A waterproof and breathable membrane is installed in the jet hole.

4. The fabric processing and dyeing equipment for uniform coloring according to claim 1, characterized in that, A top support arc plate is connected to the other side of the stirring blade, and the inner arc surface of the top support arc plate is set towards the shaft tube.

5. The fabric processing and dyeing equipment for uniform coloring according to claim 1, characterized in that, Limiting grooves are respectively formed on the inner walls of opposite sides of the dyeing pool. The limiting grooves are arranged along the thickness direction of the fabric section between the guide roller on the tail end and the agitator near the tail end. Limiting protrusions are respectively formed at opposite ends of the support frame. The limiting protrusions slide in the limiting grooves. The dyeing pool is equipped with a driving component for driving the support frame.

6. The fabric processing and dyeing equipment for uniform coloring according to claim 5, characterized in that, The dyeing pool has a threaded hole aligned with the support frame at its tail end. The driving component is a driving screw, which is screwed into the threaded hole. One end of the driving screw is rotatably connected to the support frame, and the other end of the driving screw extends to the outside of the dyeing pool and is connected to a handwheel.

7. The fabric processing and dyeing equipment for uniform coloring according to claim 5, characterized in that, The support frame has bearing arms formed at opposite ends, and sliding grooves are provided on opposite sides of the two bearing arms. The sliding grooves are arranged in the same direction as the limiting grooves. The two ends of the other pressure roller are rotatably connected to sliders. The sliders slide in the sliding grooves, and a push spring is connected between the sliders and the groove wall near the support frame.

8. The fabric processing and dyeing equipment for uniform coloring according to claim 7, characterized in that, A sliding rod is connected between the groove walls at opposite ends of the groove. The sliding rod is arranged along the length of the groove. The slider has a sliding hole. The sliding rod is movably inserted through the sliding hole. The push spring is sleeved on the sliding rod.

9. The fabric processing and dyeing equipment for uniform coloring according to claim 1, characterized in that, An air guide plate is installed on the inner side of the top of the drying oven.

10. The fabric processing and dyeing equipment for uniform coloring according to claim 1, characterized in that, The drying chamber is equipped with an air guide hood, which has a large opening and a small opening. The small opening is connected to the air inlet pipe, and the large opening is aligned with the lower side of the fabric. A flow divider is installed inside the air guide hood.