Cloth dyeing equipment

Abstract

The invention provides cloth dyeing equipment. The cloth dyeing equipment comprises a tank body and a cloth discharging device, a cloth inlet is formed in one end of the tank body, a cloth outlet is formed in the other end of the tank body, and the cloth outlet device is connected to the top of the cloth outlet; the cloth discharging device comprises a supporting frame, a rotating roller, a driving motor, a vacuum pump, a vacuum pipe, a liquid suction pump and a liquid suction pipe, the driving motor is fixedly connected to the supporting frame and used for driving the rotating roller to rotate, an absorption cavity is formed in the rotating roller, a plurality of absorption holes communicated with the absorption cavity are formed in the outer wall of the rotating roller, and a liquid collecting groove is connected into the absorption cavity; one rotating shaft is provided with an air suction hole, the other rotating shaft is provided with a water suction hole, and the air suction end of the vacuum pump is connected with the air suction hole through a vacuum pipe. A rotating roller in the cloth discharging device is matched with a vacuum pump to form a negative pressure environment, redundant dye liquor on the surface of the cloth can be rapidly adsorbed through suction holes in the outer wall, meanwhile, the adsorbed dye liquor can be collected in time through a liquor collecting groove in an absorption cavity and guided out through a liquor suction pump, and the drying efficiency of the dyed cloth is improved while dye recycling is achieved.

Description

Technical Field

[0001] This invention relates to the field of fabric printing and dyeing technology, and more particularly to fabric dyeing equipment. Background Technology

[0002] In the textile dyeing industry, fabric dyeing is a core process that determines the appearance, texture, and market value of textiles. The performance of dyeing equipment directly affects dyeing efficiency, dye utilization, and finished product quality. High-temperature, high-pressure dyeing tanks are core equipment in the textile dyeing and finishing industry, widely used for dyeing various fabrics such as cotton, linen, and synthetic fibers due to their advantages of strong dye penetration and uniform dyeing under high temperature and pressure. Their working principle involves placing the fabric and dye solution in a sealed tank, and then increasing the temperature and pressure to allow dye molecules to rapidly diffuse and penetrate into the fabric fibers, thus achieving uniform dyeing. In existing technologies, after dyeing, the fabric is typically simply discharged from the tank via a simple guiding mechanism. However, a large amount of liquid dye remains inside and on the surface of the dyed fabric fibers. This residual liquid dye is not effectively recovered and is directly lost during the fabric discharge process, reducing the actual utilization rate of the dye and increasing raw material costs. Summary of the Invention

[0003] This invention provides fabric dyeing equipment to solve the problems in the prior art.

[0004] This invention provides fabric dyeing equipment, including a tank and a fabric dispensing device; The tank has a fabric inlet at one end and a fabric outlet at the other end. A fabric inlet door is detachably connected to the fabric inlet, and a fabric outlet door is detachably connected to the fabric outlet. The fabric outlet device is connected to the top of the fabric outlet. The fabric feeding device includes a support frame, a rotating roller, a drive motor, a vacuum pump, a vacuum tube, a liquid suction pump, and a liquid suction tube. The two ends of the rotating roller are rotatably connected to the support frame via rotating shafts. The drive motor is fixedly connected to the support frame to drive the rotating roller to rotate. The rotating roller has an absorption chamber inside, and the outer wall of the rotating roller has multiple suction holes that communicate with the absorption chamber. A liquid collection tank is connected inside the absorption chamber. One rotating shaft has an air suction hole, and another rotating shaft has a water suction hole. The air suction end of the vacuum pump is connected to the air suction hole through the vacuum tube. A connecting frame is fixedly connected to the liquid collection tank. The connecting frame passes through the water suction hole and is fixedly connected to the support frame. The liquid suction tube passes through the connecting frame and extends into the liquid collection tank. One end of the liquid suction tube extends out of the rotating roller and is connected to the liquid suction pump.

[0005] Furthermore, the width of the liquid collection tank gradually decreases in the vertical downward direction, and the end of the liquid suction tube extends into the bottom of the liquid collection tank.

[0006] Furthermore, a scraper bracket is fixedly connected inside the liquid collection tank, and a scraper is connected to the end of the scraper bracket, with the scraper in contact with the top of the absorption chamber.

[0007] Furthermore, the scraper is made of rubber.

[0008] Furthermore, a baffle plate is fixedly connected to the scraper bracket near the air intake hole, and a gap is provided between the baffle plate and the air intake hole.

[0009] Furthermore, the width of the gap is set to 5-10 mm.

[0010] Furthermore, the absorption cavity is cylindrical, and the outer wall of the liquid collection tank is in contact with the bottom of the inner wall of the absorption cavity.

[0011] Furthermore, it also includes a dye supply device, which includes a mixing tank and a feeding pump, the mixing tank being connected to the tank body via the feeding pump.

[0012] Furthermore, it also includes a temporary storage tank, a drain pipe, and a recovery pipe. The temporary storage tank is connected to the top of the mixing tank, the drain pipe is connected to the bottom of the temporary storage tank, and the end of the drain pipe away from the temporary storage tank is connected to the mixing tank. A drain valve is connected to the drain pipe. One end of the recovery pipe is connected to the outlet of the suction pump, and the other end of the recovery pipe is connected to the temporary storage tank.

[0013] The beneficial effects of this invention are as follows: 1. In the fabric dispensing device, the rotating rollers work with the vacuum pump to create a negative pressure environment. Excess dye liquor on the fabric surface can be quickly adsorbed through the suction holes on the outer wall. At the same time, the liquid collection tank in the absorption chamber can collect the adsorbed dye liquor in time and export it through the suction pump. This effectively reduces the moisture content of the fabric and avoids problems such as uneven dyeing and residual stains caused by excessive liquid after the fabric leaves the tank. This achieves dye recovery and improves the drying efficiency of the dyed fabric.

[0014] 2. The absorption chamber is designed with a cylindrical structure, its inner diameter matching the outer diameter of the rotating roller. The outer wall of the collection trough is tightly fitted to the bottom of the inner wall of the absorption chamber. On one hand, the edge of the collection trough is fitted to the inner wall of the absorption chamber, and as the rotating roller rotates, the edge of the collection trough scrapes the dye liquid adhering to the inner wall of the absorption chamber into the collection trough. On the other hand, the collection trough is located at the bottom of the absorption chamber, covering and blocking the air suction hole at the bottom of the absorption chamber, concentrating and maintaining the negative pressure suction at the air suction hole at the top of the absorption chamber, thereby improving the dewatering effect on the fabric passing through the top of the rotating roller.

[0015] 3. The scraper inside the absorption chamber can scrape off the dye liquid adhering to the inner wall of the top of the absorption chamber in real time, preventing the dye liquid from accumulating and affecting the adsorption effect; the rubber scraper has both sealing and flexibility, which can ensure the scraping effect and avoid scratching the inner wall of the absorption chamber; the baffle can prevent the dye liquid from splashing into the suction hole, preventing the vacuum pump from being damaged by the dye liquid entering, further improving the stability and reliability of the equipment operation and extending the service life of the overall equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the fabric dispensing device according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the rotating roller in an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the connection relationship of the scraper in an embodiment of the present invention.

[0020] Figure label: 1. Tank body; 11. Fabric inlet; 12. Fabric inlet door; 13. Fabric outlet; 14. Fabric outlet door; 2. Fabric outlet device; 21. Support frame; 22. Rotating roller; 221. Rotating shaft; 222. Absorption chamber; 223. Suction hole; 224. Air suction hole; 225. Water suction hole; 23. Drive motor; 24. Vacuum pump; 25. Vacuum tube; 26. Liquid suction pump; 27. Liquid suction pipe; 3. Liquid collection tank; 31. Connecting frame; 32. Scraper bracket; 33. Scraper; 34. Baffle plate; 4. Mixing tank; 41. Feeding pump; 5. Temporary storage tank; 51. Drain pipe; 52. Drain valve; 53. Recovery pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0022] The terms "first" and "second" in the specification and claims of this invention may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0024] The following is combined Figures 1-4 The fabric dyeing equipment of the present invention includes a tank 1 and a fabric dispensing device 2. One end of the tank 1 has a fabric inlet 11, and the other end has a fabric outlet 13. A fabric inlet door 12 is detachably connected to the fabric inlet 11, and a fabric outlet door 14 is detachably connected to the fabric outlet 13. The fabric dispensing device 2 is connected to the top of the fabric outlet 13. The fabric dispensing device 2 includes a support frame 21, a rotating roller 22, a drive motor 23, a vacuum pump 24, a vacuum tube 25, a liquid suction pump 26, and a liquid suction tube 27. Both ends of the rotating roller 22 are rotatably connected to the support frame 21 via rotating shafts 221. The drive motor 23 is fixedly connected to the support frame 21 to drive the rotating roller 22 to rotate. The rotating roller 22 has an absorption chamber 222 inside, and multiple suction holes 223 connected to the absorption chamber 222 are opened on the outer wall of the rotating roller 22. A liquid collection tank 3 is connected inside the absorption chamber 222. A suction hole 224 is opened on one rotating shaft 221, and a water suction hole 225 is opened on the other rotating shaft 221. The suction end of the vacuum pump 24 is connected to the suction hole 224 through the vacuum tube 25. A connecting frame 31 is fixedly connected to the liquid collection tank 3. The connecting frame 31 passes through the water suction hole 225 and is fixedly connected to the support frame 21. The suction pipe 27 passes through the connecting frame 31 and extends into the liquid collection tank 3. One end of the suction pipe 27 extends out of the rotating roller 22 and is connected to the suction pump 26.

[0025] Specifically, such as Figure 1 , Figure 2 As shown, a fabric inlet 11 is detachably connected to a fabric inlet door 12, and a fabric outlet 13 is detachably connected to a fabric outlet door 14 via bolts. The fabric outlet device 2 is located at the top of the fabric outlet 13. A support frame 21 is welded to the tank body 1. A cylindrical absorption chamber 222 is provided inside the rotating roller 22 along its axial direction. Multiple suction holes 223, each with a diameter of 2-5 mm, are evenly distributed on the outer wall of the rotating roller 22 and communicate with the absorption chamber 222. Figure 3As shown, the collection tank 3 is placed inside the absorption chamber 222. The connecting frame 31 is welded to the collection tank 3, and the connecting frame 31 passes through the suction hole 225 and is fixedly connected to the support frame 21, so that the collection tank 3 is fixed relative to the support frame 21 and can rotate relative to the rotating roller 22, thus keeping the collection tank 3 below the absorption chamber 222. The suction end of the vacuum pump 24 is connected to the suction hole 224 through the vacuum tube 25, and the vacuum tube 25 can rotate relative to the suction hole 224. The suction pipe 27 passes through the central through hole of the connecting frame 31 and extends into the collection tank 3. One end of the suction pipe 27 extending out of the rotating roller 22 is connected to the inlet end of the suction pump 26 through a flange. The drive motor 23 is set as a right-angle geared motor, and the rotating shaft 221 of the right-angle geared motor drives the rotation of the rotating shaft 221 at the end of the rotating roller 22 through belt drive.

[0026] When using the fabric dyeing equipment, the fabric enters the tank 1 through the inlet 11 and, after dyeing, is discharged from the outlet 13 onto the surface of the rotating roller 22. The drive motor 23 rotates the rotating roller 22, and simultaneously the vacuum pump 24 starts, drawing a vacuum into the absorption chamber 222 through the vacuum tube 25 and suction port 224. This causes excess dye on the fabric surface to enter the absorption chamber 222 through the suction port 223 under the pressure difference, and then drips into the collection tank 3 for collection. The suction pump 26 starts, extracting and recovering the dye collected in the collection tank 3 through the suction tube 27, achieving dehydration treatment when the fabric exits the tank. This not only recovers the dye but also improves the drying efficiency of the dyed fabric.

[0027] Furthermore, the width of the liquid collection tank 3 gradually decreases in the vertical downward direction, and the end of the liquid suction pipe 27 extends into the bottom of the liquid collection tank 3.

[0028] Specifically, such as Figure 4 As shown, the cross-section of the collection tank 3 is set to an arc shape, so that the width of the collection tank 3 gradually decreases in the vertical downward direction, and the end of the suction pipe 27 extends into the bottom of the collection tank 3. The arc shape of the collection tank 3 can guide the dye to gather to the bottom, increase the liquid level in the collection tank 3, and thus improve the dye recovery rate.

[0029] Furthermore, a scraper bracket 32 ​​is fixedly connected inside the liquid collection tank 3, and a scraper 33 is connected to the end of the scraper bracket 32. The scraper 33 is in contact with the top of the absorption chamber 222.

[0030] Specifically, such as Figure 3 , Figure 4As shown, a scraper bracket 32 ​​is welded and fixed inside the collection tank 3. The scraper bracket 32 ​​is a metal frame that extends upwards. A scraper 33 is connected to the top of the scraper bracket 32 ​​by screws. The top of the scraper 33 contacts the inner wall of the top of the absorption chamber 222. During the rotation of the rotating roller 22, the scraper 33 can scrape off the dye liquid adhering to the inner wall of the top of the absorption chamber 222. The scraped dye liquid flows downwards along the scraper 33 and the scraper bracket 32 ​​into the collection tank 3 for collection. This prevents dye from accumulating on the inner wall of the absorption chamber 222, making the dehydration effect more stable.

[0031] Furthermore, the scraper 33 is made of rubber. Specifically, the scraper 33 is made of nitrile rubber, which is resistant to dye corrosion. The rubber scraper has good elasticity and wear resistance. When it contacts the inner wall of the absorption chamber 222 to scrape off the dye, it can closely adhere to the inner wall surface, resulting in better scraping effect. At the same time, it will not cause wear to the inner wall of the absorption chamber 222, thus extending the service life of the rotating roller 22.

[0032] Furthermore, a baffle plate 34 is fixedly connected to the side of the scraper bracket 32 ​​near the suction hole 224, and a gap is provided between the baffle plate 34 and the suction hole 224.

[0033] Furthermore, the width of the gap is set to 5-10mm.

[0034] Specifically, such as Figure 3 , Figure 4 As shown, a baffle plate 34 is welded and fixed to the side of the scraper bracket 32 ​​near the suction port 224. The baffle plate 34 is a rectangular metal plate, and a gap is provided between the baffle plate 34 and the suction port 224. The gap width between the baffle plate 34 and the suction port 224 is set to 8mm. The baffle plate 34 can prevent dye droplets or liquid in the absorption chamber 222 from directly entering the suction port 224, avoiding dye from entering the vacuum pump 24 and causing equipment damage. At the same time, the gap setting can ensure smooth airflow in the absorption chamber 222 and not affect the vacuuming effect.

[0035] Furthermore, the absorption cavity 222 is cylindrical, and the outer wall of the liquid collection tank 3 is in contact with the bottom of the inner wall of the absorption cavity 222.

[0036] Specifically, such as Figure 3 , Figure 4As shown, the absorption chamber 222 is configured as a cylindrical structure, with its inner diameter matching the outer diameter of the rotating roller 22. The outer wall of the liquid collection tank 3 is tightly fitted to the bottom of the inner wall of the absorption chamber 222. On one hand, the edge of the liquid collection tank 3 is fitted to the inner wall of the absorption chamber 222. As the rotating roller 22 rotates, the edge of the liquid collection tank 3 scrapes the dye liquid adhering to the inner wall of the absorption chamber 222 into the liquid collection tank 3. On the other hand, the liquid collection tank 3 is located at the bottom of the absorption chamber 222, covering and blocking the air suction hole 224 at the bottom of the absorption chamber 222. This concentrates and maintains the negative pressure suction at the air suction hole 224 at the top of the absorption chamber 222, thereby improving the dehydration effect on the fabric passing through the top of the rotating roller 22.

[0037] Furthermore, it also includes a dye supply device, which includes a mixing tank 4 and a feed pump 41. The mixing tank 4 is connected to the tank body 1 through the feed pump 41.

[0038] Furthermore, it also includes a temporary storage tank 5, a drain pipe 51, and a recovery pipe 53. The temporary storage tank 5 is connected to the top of the mixing tank 4, the drain pipe 51 is connected to the bottom of the temporary storage tank 5, the end of the drain pipe 51 away from the temporary storage tank 5 is connected to the mixing tank 4, and a drain valve 52 is connected to the drain pipe 51. One end of the recovery pipe 53 is connected to the outlet of the suction pump 26, and the other end of the recovery pipe 53 is connected to the temporary storage tank 5.

[0039] Specifically, such as Figure 1 As shown, the mixing tank 4 is a cylindrical structure made of stainless steel. A stirring device, including a stirring motor and a stirring paddle (not shown in the figure), is installed on the top of the mixing tank 4 to uniformly stir the dye. The inlet of the feed pump 41 is connected to the bottom of the mixing tank 4 via a pipe, and the outlet of the feed pump 41 is connected to the bottom of the tank 1 via a pipe. Through the dye supply device, the prepared dye can be quantitatively delivered into the tank 1 via the feed pump 41, achieving automatic dye supply.

[0040] Specifically, the suction pump 26 transports the dye liquid drawn from the collection tank 3 to the temporary storage tank 5 for storage. After being buffered by the temporary storage tank 5, it is discharged into the mixing tank 4 through the drain pipe 51 for reuse, thereby improving the utilization rate of the dye liquid and reducing production costs.

[0041] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. Apparatus for dyeing cloth, characterised in that: The utility model provides a cloth feeding device and a cloth dyeing device, and belongs to the field of dyeing technology. One end of the tank body is provided with a cloth inlet, and the other end of the tank body is provided with a cloth outlet. The cloth outlet is detachably connected with a cloth outlet door. The cloth outlet device comprises a support frame, a rotating roller, a driving motor, a vacuum pump, a vacuum pipe, a liquid suction pump and a liquid suction pipe.

2. The fabric dyeing apparatus according to claim 1, characterized in that: The rotating roller is provided with an absorbing cavity.

3. The fabric dyeing apparatus according to claim 1, characterized in that: The width of the liquid collecting groove gradually decreases in the vertical downward direction.

4. The fabric dyeing apparatus according to claim 3, characterized in that: The liquid collecting groove is fixedly connected with a scraper support.

5. The fabric dyeing apparatus according to claim 3, characterized in that: The material of the scraper is rubber.

6. The fabric dyeing apparatus according to claim 5, characterized in that: The scraper support is fixedly connected with a liquid blocking plate on the side close to the air suction hole.

7. The fabric dyeing apparatus according to claim 1, characterized in that: The gap between the liquid blocking plate and the air suction hole is 5-10mm.

8. The fabric dyeing apparatus according to claim 1, characterized in that: The absorbing cavity is cylindrical.

9. The fabric dyeing apparatus of claim 8, wherein: The outer wall of the liquid collecting groove is in close contact with the inner wall bottom of the absorbing cavity. The utility model also provides a dye supply device. The dye supply device comprises a dosing bucket and a feed pump. The dosing bucket is communicated with the tank body through the feed pump. The utility model also provides a temporary storage tank, a liquid discharge pipe and a recovery pipe. The temporary storage tank is connected to the top of the dosing bucket. The liquid discharge pipe is connected to the bottom of the temporary storage tank. The end of the liquid discharge pipe away from the temporary storage tank is communicated with the dosing bucket. The liquid discharge pipe is provided with a liquid discharge valve. One end of the recovery pipe is connected to the outlet of the liquid suction pump. The other end of the recovery pipe is connected to the temporary storage tank.

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