Environment-friendly bleaching and dyeing device for knitted fabric

Abstract

The utility model discloses an environment-friendly bleaching and dyeing device for knitted fabric and relates to the technical field of bleaching and dyeing. The environment-friendly bleaching and dyeing device for the knitted fabric comprises an inner barrel, a rotary driver, an outer cylinder, a liquid medicine box and a liquid pumping mechanism. The rotary driver is connected to the inner cylinder. A plurality of through holes are formed in the side wall of the inner cylinder. The outer cylinder is sleeved outside the inner barrel, and the lower ring part of the inner barrel is seamlessly abutted against the outer cylinder. An inlet of the liquid pumping mechanism is connected with the liquid medicine box, and an outlet is located between the inner cylinder and the outer cylinder. When knitted fabric needs to be dyed, the knitted fabric can be placed in the inner cylinder, a proper amount of water is introduced, the rotary driver is started to drive the inner cylinder to rotate, then the liquid pumping mechanism pumps liquid medicine in the liquid medicine box into the position between the outer cylinder and the inner cylinder, and the newly pumped liquid medicine is fully dispersed by rotating water flow and enters the inner cylinder through the through holes. The dye is absorbed by the knitted fabric to dye the knitted fabric. The newly added liquid medicine generally does not immediately contact the knitted fabric, but contacts the knitted fabric after being dispersed, so that the phenomenon of non-uniform dyeing caused by immediate contact is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of bleaching and dyeing, and in particular to an environmentally friendly bleaching and dyeing device for knitted fabrics. Background Art

[0002] The dyeing process typically includes cleaning, bleaching, dyeing, fixing, washing, and drying. During the dyeing step, knitted fabrics typically need to be immersed in a dyeing solution for a period of time to fully absorb the dye and achieve the desired color. This dyeing process requires frequent additions to the dyeing solution. Currently, dye is typically added directly to the dyeing solution in the same container as the knitted fabric. This can lead to the newly added dye immediately coming into contact with the knitted fabric without being fully dispersed, resulting in uneven dyeing. Utility Model Content

[0003] Given that dyes are currently generally added directly to the dyeing liquid in the same container as the knitted fabric, it is easy for the newly added dye to immediately contact the knitted fabric without being fully dispersed, thereby causing uneven dyeing. The present application proposes a method of adding the dye to a container next to the knitted fabric, which is connected to the container containing the knitted fabric, so as to achieve the effect of fully dispersing the newly added dye before contacting it with the knitted fabric. To this end, the present application adopts the following technical solution.

[0004] An environmentally friendly knitted fabric bleaching and dyeing device comprises an inner cylinder, a rotary driver, an outer cylinder, a liquid medicine tank and a liquid pumping mechanism.

[0005] The rotary driver is connected to the inner cylinder, and the driving shaft of the rotary driver and the central axis of the inner cylinder are on the same straight line.

[0006] The side wall of the inner cylinder is provided with a plurality of through holes. The outer cylinder is sleeved outside the inner cylinder, and the lower ring portion of the inner cylinder and the outer cylinder are seamlessly connected. The lower ring portion is located below the plurality of through holes. The upper edge of the outer cylinder is higher than the plurality of through holes.

[0007] The inlet of the liquid pumping mechanism is connected to the liquid medicine tank, and the outlet is located in the cavity between the inner cylinder and the outer cylinder or above the cavity.

[0008] By adopting the above technical solution, to dye a knitted fabric, the fabric is placed in the inner drum and an appropriate amount of water is introduced. The rotary drive is activated, causing the inner drum to rotate. The pumping mechanism then draws the liquid (dye) from the liquid tank into the space between the outer and inner drums. The newly drawn liquid is fully dispersed by the rotating water flow and enters the inner drum through the through-holes, where it is absorbed by the knitted fabric and dyes it. In this solution, the newly added liquid and the knitted fabric are placed in two separate, interconnected containers. The newly added liquid generally does not immediately contact the knitted fabric, but is fully dispersed before contacting it, reducing the uneven dyeing caused by immediate contact.

[0009] A preferred embodiment of the environmentally friendly knitted fabric dyeing and bleaching device further comprises a first cover, a first air pipe, a second cover, a second air pipe, an exhaust fan, and a spray tower. The first cover seals the upper end of the outer cylinder, and the first air pipe passes through the first cover to connect to the upper gas space of the outer cylinder. The second cover seals the upper end of the liquid medicine tank, and the second air pipe passes through the second cover to connect to the upper gas space of the liquid medicine tank. The first and second air pipes are connected to the exhaust fan, which is connected to the spray tower via an exhaust pipe.

[0010] By adopting the above technical solution, harmful gases generated in the liquid medicine tank and harmful gases generated in other cylinders can be purified by the spray tower and then discharged into the atmosphere, thereby reducing gas pollution.

[0011] In a preferred embodiment of the environmentally friendly knitted fabric bleaching and dyeing device, the liquid extraction mechanism includes a suction pipe and a water pump. The inlet of the suction pipe is located in the liquid medicine tank, and the outlet is located in or above the cavity between the inner cylinder and the outer cylinder. The water pump is mounted on the suction pipe.

[0012] By adopting the above technical solution, the water pump draws the medicine liquid into the cavity between the inner cylinder and the outer cylinder or above the cavity, replenishes the new medicine liquid, and improves the concentration of the soaking liquid.

[0013] A preferred solution of the environmentally friendly knitted fabric bleaching and dyeing device is that the liquid extraction mechanism further includes a flow meter, which is installed on the extraction tube.

[0014] By adopting the above technical solution, the device can automatically and accurately control the dosage of the added liquid medicine each time.

[0015] A preferred embodiment of the environmentally friendly knitted fabric bleaching and dyeing device is that the liquid extraction mechanism further includes a check valve. The check valve is installed on the extraction pipe and is closer to the outlet of the extraction pipe than the water pump and the flow meter.

[0016] By adopting the above technical solution, the liquid extraction mechanism can prevent the medicine liquid or soaking liquid from flowing back into the medicine liquid tank.

[0017] A preferred solution of the environmentally friendly knitted fabric bleaching and dyeing device is that the section of the extraction pipe after the check valve is divided into two branches connected to both sides of the outer cylinder.

[0018] By adopting the above technical solution, the device adds liquid medicine inward on both sides of the outer cylinder, so that the liquid medicine is dispersed more evenly.

[0019] A preferred embodiment of the environmentally friendly knitted fabric bleaching and dyeing device is that the lower ring portion has a radially protruding outer ring, the outer cylinder has an inwardly protruding inner ring, and a sealing ring is installed between the outer ring and the inner ring for seamless abutment.

[0020] By adopting the above technical solution, the outer convex ring and the inner convex ring are provided to improve the sealing performance and reduce the wear of the outer cylinder body of the inner cylinder body.

[0021] A preferred embodiment of the environmentally friendly knitted fabric dyeing device is that the device further comprises a housing, wherein the outer cylinder and the liquid medicine tank are both mounted in the housing, and the stator of the rotary drive is fixed to the inner bottom surface of the housing.

[0022] By adopting the above technical solution, the shell provides a place for dyeing operations and provides an installation position for the rotary drive.

[0023] A preferred embodiment of the environmentally friendly knitted fabric dyeing and bleaching device is that the device further comprises a support platform, the support platform being fixed to the inner bottom surface of the housing, and the stator of the rotary drive being fixed to the support platform.

[0024] By adopting the above technical solution, the support platform raises the rotary driver, reducing the impact of water seepage between the inner cylinder and the outer cylinder on the rotary driver.

[0025] A preferred solution of the environmentally friendly knitted fabric bleaching and dyeing device is that the diameter of the through hole is 2 mm to 5 mm.

[0026] By adopting the above technical solution, the through hole can allow the medicine liquid newly added into the space between the outer cylinder and the inner cylinder to be fully dispersed first and then smoothly pass through the through hole.

[0027] To sum up, the environmentally friendly knitted fabric bleaching and dyeing device of the present application has the following beneficial effects: when using this device to dye knitted fabric, the newly added liquid medicine and the knitted fabric are in two different containers, and the two containers are connected. The newly added liquid medicine generally does not contact the knitted fabric immediately, but contacts the knitted fabric after being fully dispersed, thereby reducing the uneven dyeing phenomenon caused by immediate contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a diagram of the external structure of an environmentally friendly knitted fabric bleaching and dyeing device.

[0029] Figure 2 For Figure 1 Diagram of the internal structure of the chemical tank after cutting.

[0030] Figure 3 for Figure 1 The structure diagram after the shell is hidden.

[0031] Figure numerals: 1. outer shell; 2. liquid medicine tank; 3. outer cylinder; 4. inner cylinder; 5. support platform; 6. rotary drive; 401. through hole; 402. lower ring; 4021. outer convex ring; 301. inner convex ring; 302. sealing ring; 7. liquid extraction mechanism; 701. extraction tube; 702. water pump; 703. flow meter; 704. check valve; 7011. branch pipe; 8. first sealing cover; 9. first air pipe; 10. second sealing cover; 11. second air pipe; 12. exhaust fan; 13. spray tower. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the following embodiments, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] like Figure 1 , a knitted fabric environmentally friendly bleaching and dyeing device, comprising a shell 1, the shell 1 is installed on the ground, such as Figure 2 , further comprising a medicine liquid tank 2, an outer cylinder 3, and an inner cylinder 4 installed in the outer cylinder 3. A support platform 5 and a rotary driver 6 are installed below the inner cylinder 4, and the rotary driver 6 can be a motor.

[0034] The support platform 5 is fixed to the inner bottom surface of the outer shell 1. The motor stator is fixed to the support platform 5. The motor drive shaft is fixed upward to the center of the bottom surface of the inner cylinder 4. The inner cylinder 4 is a cylindrical body with an open top. The internal cavity can accommodate the knitted fabric and dye solution. Multiple through-holes 401 are evenly distributed in the upper middle portion of the side wall of the inner cylinder 4. The diameter of the through-holes 401 can range from 2 mm to 5 mm, for example, each through-hole 401 has a diameter of 3 mm. The section of the side wall of the inner cylinder 4 below the through-holes 401 is a bottom ring portion 402 without holes. The bottom ring portion 402 has an outer protrusion 4021, which is used for seamless abutment with the outer cylinder 3.

[0035] The outer cylinder 3 is also cylindrical, with its lower edge fixed to the inner bottom surface of the outer shell 1 and its upper edge elevated above the upper edge of the inner cylinder 4, making it easier to enclose the dye solution. The inner wall of the outer cylinder 3 has an inner convex ring 301 embedded with a sealing ring 302. This sealing ring 302 surrounds and tightly abuts against the outer convex ring 4021, ensuring a seamless abutment between the inner and outer convex rings 301 and 4021. This seamless abutment is maintained throughout the rotation of the outer convex ring 4021.

[0036] like Figure 3 The liquid medicine tank 2 is arranged next to the outer cylinder 3. The environmentally friendly bleaching and dyeing device for knitted fabrics also includes a liquid extraction mechanism 7. The liquid extraction mechanism 7 includes a suction pipe 701 and a water pump 702, and may also include a flow meter 703 and a check valve 704. The inlet of the suction pipe 701 is located at the bottom of the liquid medicine tank 2, and the outlet is located in the cavity between the outer cylinder 3 and the inner cylinder 4. The water pump 702, the flow meter 703 and the check valve 704 are arranged on the suction pipe 701 in sequence, with the water pump 702 located on the side closest to the liquid medicine tank 2, and the check valve 704 located on the side closest to the outer cylinder 3. When the water pump 702 is used to extract the dye from the liquid medicine tank 2, the flow meter 703 can display the flow rate, and the amount of dye added can be accurately controlled by the control system. The check valve 704 can prevent the dye from flowing back and maintain a high purity of the dye in the liquid medicine tank 2.

[0037] In a preferred embodiment, the section of the extraction pipe 701 after the check valve 704 is bifurcated into two branch pipes 7011 , which are respectively connected to two sides of the outer cylinder 3 , so that the dye is dispersed more evenly.

[0038] The environmentally friendly knitted fabric dyeing device also includes a first cover 8, a first air pipe 9, a second cover 10, a second air pipe 11, an exhaust fan 12 and a spray tower 13. The first cover 8 seals the upper end opening of the outer cylinder 3, and the inlet end of the first air pipe 9 passes through the first cover 8 to connect to the upper gas space of the outer cylinder 3. The second cover 10 seals the upper end opening of the liquid medicine tank 2, and the inlet end of the second air pipe 11 passes through the second cover 10 to connect to the upper gas space of the liquid medicine tank 2. The outlet end of the first air pipe 9 and the outlet end of the second air pipe 11 are connected to the exhaust fan 12, and the exhaust fan 12 is connected to the spray tower 13 through an exhaust pipe. After the above arrangement, the harmful gases in the outer cylinder 3 and the liquid medicine tank 2 can be extracted into the spray tower 13 for environmentally friendly treatment. After treatment, the more environmentally friendly gases are discharged into the atmosphere, reducing air pollution.

[0039] The environmentally friendly knitted fabric bleaching and dyeing device is used to perform the dyeing steps of knitted fabrics. Its implementation principle is as follows: now add clean water into the inner cylinder 4, configure the dye liquid in the liquid medicine tank 2, start the motor to rotate the inner cylinder 4, start the water pump 702 to pump the dye liquid into the space between the outer cylinder 3 and the inner cylinder 4, and into the water. Under the rotation of the inner cylinder 4, the dye liquid is fully dispersed and enters the inner cylinder 4 through the through hole 401 and is fully dispersed again; add the knitted fabric into the inner cylinder 4, keep the motor in the started state, the knitted fabric begins to absorb the dye and color, covering the outer cylinder 3 and the liquid medicine tank 2; when dyeing a batch of knitted fabrics or multiple batches of knitted fabrics, the dye liquid is fully dispersed. During the fabric dyeing process, the concentration of the dye solution in the outer cylinder 3 will decrease, and new dye solution needs to be added frequently. Similarly, the new dye solution is pumped into the space between the outer cylinder 3 and the inner cylinder 4 by starting the water pump 702. Under the action of the rotating dye solution, the new dye solution is fully dispersed and enters the inner cylinder 4 through the through hole 401 and is fully dispersed again. During the dyeing process, it is necessary to discharge the harmful gases in the outer cylinder 3 and the harmful gases in the liquid medicine tank 2 frequently. The exhaust fan 12 can be started regularly or irregularly to discharge these harmful gases into the spray tower 13 for treatment. After treatment, the more environmentally friendly gases are discharged into the atmosphere.

[0040] When the above-mentioned environmentally friendly knitted fabric bleaching and dyeing device dyes the knitted fabric, the newly added liquid medicine and the knitted fabric are in two different containers, namely the inner cylinder 4 and the outer cylinder 3. The two containers are connected. The newly added liquid medicine generally does not contact the knitted fabric immediately, but contacts the knitted fabric after being fully dispersed, thereby reducing the uneven dyeing phenomenon caused by the newly added liquid medicine immediately contacting the knitted fabric.

[0041] Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An environmentally friendly knitted fabric bleaching and dyeing device, characterized in that: It comprises an inner cylinder (4), a rotary driver (6), an outer cylinder (3), a liquid medicine tank (2) and a liquid pumping mechanism (7); The rotary driver (6) is connected to the inner cylinder (4), and the drive shaft of the rotary driver (6) and the central axis of the inner cylinder (4) are on the same straight line; The side wall of the inner cylinder (4) is provided with a plurality of through holes (401); the outer cylinder (3) is sleeved outside the inner cylinder (4), and the lower ring portion (402) of the inner cylinder (4) and the outer cylinder (3) are seamlessly abutted; the lower ring portion (402) is located below the plurality of through holes (401); the upper edge of the outer cylinder (3) is higher than the plurality of through holes (401); The inlet of the liquid pumping mechanism (7) is connected to the liquid medicine tank (2), and the outlet is located in the cavity between the inner cylinder (4) and the outer cylinder (3) or above the cavity.

2. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 1, characterized in that: The environmentally friendly knitted fabric dyeing device further comprises a first cover (8), a first air pipe (9), a second cover (10), a second air pipe (11), an exhaust fan (12) and a spray tower (13); the first cover (8) seals the upper end of the outer cylinder (3), and the first air pipe (9) passes through the first cover (8) and is connected to the upper gas space of the outer cylinder (3); the second cover (10) seals the upper end of the liquid medicine tank (2), and the second air pipe (11) passes through the second cover (10) and is connected to the upper gas space of the liquid medicine tank (2); the first air pipe (9) and the second air pipe (11) are connected to the exhaust fan (12), and the exhaust fan (12) is connected to the spray tower (13) through a section of exhaust pipe.

3. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 1, characterized in that: The liquid extraction mechanism (7) comprises a suction pipe (701) and a water pump (702); the inlet of the suction pipe (701) is located in the liquid medicine tank (2), and the outlet is located in or above the cavity between the inner cylinder (4) and the outer cylinder (3); the water pump (702) is installed on the suction pipe (701).

4. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 3, characterized in that: The liquid extraction mechanism (7) further comprises a flow meter (703); the flow meter (703) is mounted on the extraction tube (701).

5. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 4, characterized in that: The liquid pumping mechanism (7) further comprises a check valve (704); the check valve (704) is mounted on the pumping tube (701); the check valve (704) is closer to the outlet of the pumping tube (701) than the water pump (702) and the flow meter (703).

6. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 5, characterized in that: The section of the suction pipe (701) located after the check valve (704) is divided into two branch pipes (7011) connected to both sides of the outer cylinder (3).

7. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 1, characterized in that: The lower ring portion (402) has a radially protruding outer convex ring (4021); the outer cylinder (3) has an inwardly protruding inner convex ring (301); and a sealing ring (302) is installed between the outer convex ring (4021) and the inner convex ring (301) for seamless abutment.

8. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 1, characterized in that: The environmentally friendly knitted fabric bleaching and dyeing device further comprises a housing (1), wherein the outer cylinder (3) and the liquid medicine tank (2) are both mounted in the housing (1); and the stator of the rotary driver (6) is fixed to the inner bottom surface of the housing (1).

9. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 8, characterized in that: The environmentally friendly knitted fabric dyeing device further comprises a support platform (5); the support platform (5) is fixed to the inner bottom surface of the outer shell (1); and the stator of the rotary driver (6) is fixed on the support platform (5).

10. The environmentally friendly knitted fabric bleaching and dyeing device according to claim 1, characterized in that: The diameter of the through hole (401) is 2 mm to 5 mm.

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