Dip dyeing device for one-bath dyeing of polyester-cotton fabric
By using a hot air fan and a serpentine airway to preheat the dye in the dye dipping device, and combining the design of the stirred leaf, the problems of long heating time and uneven dyeing are solved, and the dyeing efficiency and dyeing effect of the dye are improved.
Patent Information
- Application Number
- CN202420358203.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-27
AI Technical Summary
In the prior art, the dye is discharged into the dye bath and heated after stirring in the mixing tank. The process time is long, resulting in a decrease in the impregnation efficiency, and some dyes may crystallize or precipitate at lower temperatures, resulting in a lack of dyeing effect. Even.
A dyeing device including a heat insulation rack, preheating plate, a hot air fan and agitating leaves is designed. The dye is preheated through the hot air fan and separated the heat air in the serpentine airway, so that the dye is heated evenly during the stirring process, reducing the cohesion of dye particles. , improve mixing uniformity, and stir the dye evenly by stirring leaves to improve dyeing effect.
The dye heating time is shortened, the dyeing efficiency and dyeing effect are improved, and the dyeing effect is ensured uniform penetration of the dye on the fibers and color uniformity.
Smart Images
Figure CN222160661U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of dyeing, and in particular to an immersion dyeing device for dyeing polyester-cotton fabrics in one bath. Background Art
[0002] One-bath dyeing of polyester-cotton fabrics is a process of dyeing polyester and cotton in the same bath under neutral conditions. This process uses reactive dyes that can be dyed at a nearly neutral DH value to dye cotton, and disperse dyes that can be dyed under neutral conditions to dye polyester.
[0003] Publication No. CN216919708U discloses a polyester-cotton blended jig-dyeing one-bath dyeing device, comprising a dyeing tank, the right end of which is fixedly connected to a dye pre-adjustment tank, the bottom end of which is fixedly connected to a motor, and the top side output end of the motor extends to the inside of the bottom end of the dye pre-adjustment tank, and a dye pushing device is arranged at the top of the dye pre-adjustment tank.
[0004] The above device puts the pre-made dye into a mixing tank and stirs it first. After the dye is stirred, the dye is discharged into the dye bath. Finally, the dye in the dye bath is heated to a suitable temperature by an electric heating rod to perform the dyeing operation on the cloth.
[0005] However, the above technical solution has the following defects:
[0006] 1. After the dye is stirred in the mixing tank, it is discharged into the dye bath, and then the dye bath is heated by an electric heating rod. This process may take a long time, thereby increasing the working time of dyeing and causing the problem of reduced dyeing efficiency.
[0007] 2. At the same time, when mixing dyes, the mixing tank of the prior art mixes the dyes by stirring. Since some dyes may crystallize or precipitate at a lower temperature, the dyes are mixed unevenly, resulting in crystallization and precipitation in the dyes, thereby causing the problem of uneven dyeing effect. Utility Model Content
[0008] One purpose of the present application is to solve the problem in the prior art that the dye in the dye bath takes a long time to heat, resulting in a decrease in dyeing efficiency.
[0009] To achieve the above purpose, the technical solution adopted in the present application is: a one-bath immersion dyeing device for dyeing polyester-cotton fabrics, comprising a dye bath, a heat insulation frame fixedly connected to the surface of the dye bath, a plurality of preheating plates fixedly connected to the interior of the heat insulation frame, a plurality of first partitions fixedly arranged inside the preheating plates, the interior of the preheating plates is divided by the plurality of first partitions to form a serpentine airway, a first exhaust duct fixedly connected to the lower end of one side of the heat insulation frame, a hot air blower fixedly connected to one end of the first exhaust duct, one side of the hot air blower fixedly connected to one side of the dye bath, a second exhaust duct fixedly connected to the upper end of the other side of the heat insulation frame away from the first exhaust duct, one end of the second exhaust duct A fixing frame is fixedly connected to the end, one side of the fixing frame is fixedly connected to the other side of the dye bath and away from the hot air blower, the interior of the fixing frame is fixedly connected to a heating pipe, the interior of the heating pipe is fixedly connected to a mixing tank, the outer wall of the heating pipe is fixedly connected to a second baffle, a spiral air passage is formed between the heating pipe and the inner wall of the mixing tank through the second baffle, a return air duct is fixedly connected between the upper end of the outer surface of the fixing frame and the input end of the hot air blower, a discharge pipe is fixedly connected between the inner lower surface of the mixing tank and the inner wall of the dye bath, the lower end of the inner wall of the dye bath is rotatably connected to a first placement rod, and the upper end of the inner wall of the dye bath and located on the side of the first placement rod is rotatably connected to a second placement rod.
[0010] Preferably, a stirring motor is fixedly connected to the lower surface of the fixing frame, a stirring rod is rotatably connected to the inner lower surface of the mixing tank, and one end of the stirring rod is fixedly connected to the output end of the stirring motor.
[0011] Preferably, the upper surface of the fixing frame is fixedly connected to a supporting frame, the lower surface of one end of the supporting frame is fixedly connected to a cylinder, the movable end of the cylinder is fixedly connected to a piston, and the size of the piston matches the size of the mixing tank.
[0012] Preferably, a first transmission motor is fixedly connected to the side wall of the dye bath and located on one side of the hot air blower, and the output end of the first transmission motor is fixedly connected to one end of the first placement rod. A first stirring blade is rotatably connected to the upper end of the inner wall of the dye bath and is located on one side of the second placement rod. One end of the first stirring blade and one end of the first placement rod are fixedly connected to a first pulley, and the two first pulleys are connected by belt transmission.
[0013] Preferably, a second transmission motor is fixedly connected to the side wall of the dye bath and away from the side of the first transmission motor, the output end of the second transmission motor is fixedly connected to one end of the second placing rod, the lower end of the inner wall of the dye bath is rotatably connected to a second stirring blade and is located on one side of the first placing rod, one end of the second stirring blade and one end of the second placing rod are fixedly connected to a second pulley, and the two second pulleys are connected by belt transmission.
[0014] Preferably, a drain valve is fixedly connected to the side wall of the dye bath and located at the lower side of the second transmission motor, and a plurality of supporting legs are fixedly connected to the lower surface of the dye bath.
[0015] Compared with the prior art, the beneficial effects of this application are:
[0016] 1. By providing a hot air blower and a second baffle, the hot air blower can deliver hot air to the inside of the heating tube. The hot air passes through the spiral air channel formed by the second baffle, and can evenly heat the surface of the mixing tank on the inner wall of the heating tube, so that the dye mixed in the mixing tank can be preheated during the stirring process. By combining stirring and preheating, heating can reduce the cohesion between the dye particles, making it easier to evenly disperse in the mixing tank, making the mixing of different dyes more uniform, providing a good foundation for the subsequent dyeing process. Moreover, the dye has been preheated and mixed, and after entering the dye bath, the time for the dye to heat up to the required temperature will also be shortened, thereby reducing the time and energy consumption for heating the dye bath;
[0017] 2 By providing the preheating plate and the first partition, the hot air enters the preheating plate and is separated by a plurality of first partitions, so that the hot air flows inside the serpentine airway, so that the dye bath is preheated before it is heated up, reducing the energy and time required for direct heating of the dye bath, thereby improving the dyeing efficiency, and when the dye is stirred by the first stirring blade and the second stirring blade during the dyeing operation, the dye can be heated evenly, which helps the dye to better penetrate into the fiber and improve the dyeing effect and quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a one-bath immersion dyeing device for dyeing polyester-cotton fabrics;
[0019] Figure 2 The utility model provides a three-dimensional front structural schematic diagram of a one-bath immersion dyeing device for dyeing polyester-cotton fabrics;
[0020] Figure 3 The utility model provides a three-dimensional top view of the structure of a one-bath immersion dyeing device for dyeing polyester-cotton fabrics;
[0021] Figure 4 The utility model provides a three-dimensional structural schematic diagram of a heat-insulating frame of a one-bath dyeing device for dyeing polyester-cotton fabrics;
[0022] Figure 5 The utility model provides a structural cross-sectional view of a fixing frame of an immersion dyeing device for dyeing polyester-cotton fabrics in one bath;
[0023] Figure 6The utility model provides a structural sectional view from another perspective of a fixing frame of an immersion dyeing device for dyeing polyester-cotton fabrics in one bath.
[0024] In the figure: 1. dye bath; 2. insulation frame; 21. preheating plate; 22. first partition; 23. serpentine air duct; 24. hot air blower; 25. first exhaust duct; 26. second exhaust duct; 27. return air duct; 3. fixed frame; 31. heating pipe; 32. second baffle; 33. spiral air duct; 34. stirring motor; 35. stirring rod; 36. discharge pipe; 37. mixing tank; 4. support frame; 41. cylinder; 42. piston; 5. first transmission motor; 51. first placement rod; 52. first stirring blade; 53. first pulley; 6. second transmission motor; 61. second placement rod; 62. second stirring blade; 63. third pulley. DETAILED DESCRIPTION
[0025] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.
[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
[0028] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.
[0029] The prior art has the following defects:
[0030] The prior art is to first put the pre-made dye into the mixing tank 37 for stirring and mixing, and then discharge the dye into the dye bath 1 after the dye is stirred, and finally heat the dye in the dye bath 1 to a suitable temperature by the electric heating rod to perform the dyeing operation on the fabric. The dye in the above operation is discharged into the dye bath 1 after the dye is stirred in the mixing tank 37, and then the dye bath 1 is heated by the electric heating rod. This process may take a long time, thereby increasing the working time of dyeing and causing the problem of reduced dyeing efficiency.
[0031] Meanwhile, when the mixing tank 37 of the prior art mixes the dyes, the dyes are mixed by stirring. Since some dyes may crystallize or precipitate at a lower temperature, the dyes are mixed unevenly, resulting in crystallization and precipitation in the dyes, thereby causing the problem of uneven dyeing effect.
[0032] As an improvement, Figure 1-Figure 5 As shown, the preferred embodiments of the present application are:
[0033] A one-bath immersion dyeing device for dyeing polyester-cotton fabrics, comprising a dye bath 1, a heat insulation frame 2 is fixedly connected to the surface of the dye bath 1, a plurality of preheating plates 21 are fixedly connected to the interior of the heat insulation frame 2, a plurality of first partitions 22 are fixedly arranged inside the preheating plates 21, the interior of the preheating plates 21 is divided by the plurality of first partitions 22 to form a serpentine airway 23, a first exhaust duct 25 is fixedly connected to the lower end of one side of the heat insulation frame 2, one end of the first exhaust duct 25 is fixedly connected to a hot air blower 24, one side of the hot air blower 24 is fixedly connected to one side of the dye bath 1, a second exhaust duct 26 is fixedly connected to the upper end of the other side of the heat insulation frame 2 away from the first exhaust duct 25, one end of the second exhaust duct 26 is fixedly connected to a fixed frame 3, and the fixed frame 3 One side of the fixing frame 3 is fixedly connected to the dye bath 1 and the other side away from the hot air blower 24, a heating pipe 31 is fixedly connected inside the fixing frame 3, a mixing tank 37 is fixedly connected inside the heating pipe 31, a second baffle 32 is fixedly connected to the outer wall of the heating pipe 31, a spiral air passage 33 is formed between the heating pipe 31 and the inner wall of the mixing tank 37 through the second baffle 32, a return air duct 27 is fixedly connected between the upper end of the outer surface of the fixing frame 3 and the input end of the hot air blower 24, a discharge pipe 36 is fixedly connected between the inner lower surface of the mixing tank 37 and the inner wall of the dye bath 1, a first placing rod 51 is rotatably connected to the lower end of the inner wall of the dye bath 1, and a second placing rod 61 is rotatably connected to the upper end of the inner wall of the dye bath 1 and located on one side of the first placing rod 51.
[0034] Specifically, when the present embodiment is used, the prefabricated dye is placed in the mixing tank 37, and then one end of the cloth is placed on the surface of the first placement rod 51, and the other end of the cloth is placed on the surface of the second placement rod 61. At this time, the hot air blower 24 can be turned on, and the hot air blower 24 blows air through the first exhaust pipe 25 into the interior of the insulation frame 2, and then enters the interior of the preheating plate 21 through the insulation frame 2, and passes through the serpentine airway 23 in the preheating plate 21 divided by the first partition 22, so that the dye bath 1 can be preheated uniformly, and then the hot air passes through the second exhaust pipe 26 into the interior of the heating pipe 31, and the hot air passes through the spiral airway 3 formed by the second baffle 22. 3 is used to evenly heat the outer surface of the mixing tank 37, so that the dye inside the mixing tank 37 can be preheated, and the cohesion between the dye particles can be reduced, so that it is easier to evenly disperse in the mixing tank 37, and then the mixed dye is introduced into the interior of the dye bath 1 through the discharge pipe 36. Since the dye bath 1 has been preheated, the time for raising the dye bath 1 to a suitable temperature can be reduced later, so that the dye bath 1 can be quickly raised to a suitable temperature for dyeing, and at the same time, the first placement rod 51 and the second placement roller 61 are driven to rotate the chemical fiber material in the cloth back and forth in different directions to perform the dyeing operation;
[0035] In the above operation, the dye is preheated during mixing, and after entering the dye bath 1, the dye bath 1 is also preheated before heating, so that the time for the dye to heat up to the required temperature is also shortened, thereby reducing the heating time and energy consumption of the dye bath 1, thereby improving the efficiency of fabric dyeing, and heating can reduce the cohesion between the dye particles, making it easier to evenly disperse them in the mixing tank 37, so that the mixing between different dyes is more uniform, thereby ensuring the dyeing effect of the dye on the fabric.
[0036] like Figure 6 As shown, in this embodiment, a stirring motor 34 is fixedly connected to the lower surface of the fixing frame 3, a stirring rod 35 is rotatably connected to the inner lower surface of the mixing tank 37, and one end of the stirring rod 35 is fixedly connected to the output end of the stirring motor 34.
[0037] Specifically, when the dye enters the mixing tank 37, the stirring motor 34 can be turned on, and the stirring motor 34 drives the stirring rod 35 to rotate. The stirring rod 35 can drive the dye inside the mixing tank 37 to stir and rotate, so that the dye inside is mixed more fully.
[0038] like Figure 6 As shown, in this embodiment, the upper surface of the fixed frame 3 is fixedly connected to the support frame 4, the lower surface of one end of the support frame 4 is fixedly connected to the cylinder 41, and the movable end of the cylinder 41 is fixedly connected to the piston 42, and the size of the piston 42 matches the size of the mixing tank 37.
[0039] Specifically, when the dyes in the mixing tank 37 are mixed, the cylinder 41 can be opened to work, the cylinder 41 drives the piston 42 to descend, the piston 42 enters the mixing tank 37, and the discharge tank is opened at the same time. When the piston 42 moves downward, the dyes in the mixing tank 37 are squeezed and discharged into the dye bath 1 through the discharge tank.
[0040] like Figure 1 As shown, in the present embodiment, a first transmission motor 5 is fixedly connected to the side wall of the dye bath 1 and is located on one side of the hot air blower 24, and an output end of the first transmission motor 5 is fixedly connected to one end of the first placement rod 51; a first stirring blade 52 is rotatably connected to the upper end of the inner wall of the dye bath 1 and is located on one side of the second placement rod 61; one end of the first stirring blade 52 and one end of the first placement rod 51 are both fixedly connected to a first pulley 53, and the two first pulleys 53 are connected by belt transmission; a second transmission motor 6 is fixedly connected to the side wall of the dye bath 1 and is away from the first transmission motor 5, and an output end of the second transmission motor 6 is fixedly connected to one end of the second placement rod 61; a second stirring blade 62 is rotatably connected to the lower end of the inner wall of the dye bath 1 and is located on one side of the first placement rod 51; one end of the second stirring blade 62 and one end of the second placement rod 61 are both fixedly connected to a second pulley, and the two second pulleys are connected by belt transmission.
[0041] Specifically, the first transmission motor 5 and the second transmission motor 6 are turned on to work, the first transmission motor 5 drives the first placing rod 51 to rotate, the second transmission motor 6 drives the second placing rod 61 to rotate, the first placing rod 51 and the second placing rod 61 drive the cloth to rotate back and forth in different directions to perform a dyeing operation, and at the same time the first placing rod 51 drives the first pulley 53 to rotate, the first pulley 53 drives the pulley at one end of the first stirring blade 52 to rotate synchronously through a belt, so that the first stirring blade 52 rotates, and at the same time the second placing rod 61 drives the second pulley to rotate, the second pulley drives the pulleys at both ends of the second stirring blade 62 to rotate synchronously through a belt, so that the second stirring blade 62 rotates, the first stirring blade 52 and the second stirring blade 62 rotate synchronously, the dye inside the dye bath 1 can be stirred, so that the dyes at different positions can be heated evenly, thereby improving the dyeing effect of the dye on the cloth.
[0042] like Figure 1 As shown, in this embodiment, a drain valve is fixedly connected to the side wall of the dye bath 1 and located at the lower side of the second transmission motor 6, and a plurality of legs are fixedly connected to the lower surface of the dye bath 1.
[0043] When use is completed, the dye inside the dye bath 1 can be discharged through the drain valve.
[0044] The working principle of the present application is as follows: the prefabricated dye is placed in the mixing tank 37, and then one end of the cloth is placed on the surface of the first placement rod 51, and the other end of the cloth is placed on the surface of the second placement rod 61. At this time, the hot air blower 24 can be turned on, and the hot air blower 24 blows air through the first exhaust pipe 25 into the interior of the insulation frame 2, and then through the insulation frame 2 into the interior of the preheating plate 21, and passes through the serpentine airway 23 inside the preheating plate 21 divided by the first partition 22, so that the dye bath 1 can be preheated uniformly, and then the hot air passes through the second exhaust pipe 26 into the interior of the heating pipe 31, and the hot air passes through the The spiral air channel 33 formed by the second baffle 22 is used to uniformly heat the outer surface of the mixing tank 37, so that the dye inside the mixing tank 37 can be preheated, and the cohesion between the dye particles can be reduced, making it easier to evenly disperse in the mixing tank 37. The stirring motor 34 is turned on, and the stirring motor 34 drives the stirring rod 35 to rotate. The stirring rod 35 can drive the dye inside the mixing tank 37 to stir and rotate, so that the dye inside is mixed more fully. When the dye inside the mixing tank 37 is mixed, the cylinder 41 can be turned on to work, and the cylinder 41 drives the active The plug 42 descends, and the piston 42 enters the mixing tank 37. At the same time, the discharge tank is opened. When the piston 42 moves downward, the dye in the mixing tank 37 is squeezed and discharged into the dye bath 1 through the discharge tank. Since the dye bath 1 has been preheated, the time for raising the dye bath 1 to a suitable temperature can be reduced later, so that the dye bath 1 can be quickly raised to a suitable temperature for the immersion dyeing operation. The first transmission motor 5 and the second transmission motor 6 are turned on to work. The first transmission motor 5 drives the first placement rod 51 to rotate, and the second transmission motor 6 drives the second placement rod 61 to rotate. The first placement rod 5 1 and the second placing rod 61 drive the cloth to rotate back and forth in different directions to perform the dyeing operation. At the same time, the first placing rod 51 drives the first pulley 53 to rotate, and the first pulley 53 drives the pulley at one end of the first stirring blade 52 to rotate synchronously through the belt, so that the first stirring blade 52 rotates. At the same time, the second placing rod 61 drives the second pulley to rotate, and the second pulley drives the pulleys at both ends of the second stirring blade 62 to rotate synchronously through the belt, so that the second stirring blade 62 rotates. The first stirring blade 52 and the second stirring blade 62 rotate synchronously, and the dye inside the dye bath 1 can be stirred.
[0045] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and the description only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.
Claims
1. A one-bath immersion dyeing device for dyeing polyester-cotton fabrics, comprising a dye bath (1), characterized in that: The surface of the dye bath (1) is fixedly connected to a heat insulation frame (2), a plurality of preheating plates (21) are fixedly connected inside the heat insulation frame (2), a plurality of first partitions (22) are fixedly arranged inside the preheating plates (21), and the interior of the preheating plates (21) is divided by the plurality of first partitions (22) to form a serpentine airway (23), a first exhaust duct (25) is fixedly connected to the lower end of one side of the heat insulation frame (2), one end of the first exhaust duct (25) is fixedly connected to a hot air blower (24), one side of the hot air blower (24) is fixedly connected to one side of the dye bath (1), a second exhaust duct (26) is fixedly connected to the upper end of the other side of the heat insulation frame (2) away from the first exhaust duct (25), one end of the second exhaust duct (26) is fixedly connected to a fixed frame (3), one side of the fixed frame (3) is connected to the dye bath (1) and The fixing frame (3) is fixedly connected to the other side away from the hot air blower (24); a heating pipe (31) is fixedly connected inside the fixing frame (3); a mixing tank (37) is fixedly connected inside the heating pipe (31); a second baffle (32) is fixedly connected to the outer wall of the heating pipe (31); a spiral air passage (33) is formed between the heating pipe (31) and the inner wall of the mixing tank (37) through the second baffle (32); a return air pipe (27) is fixedly connected between the upper end of the outer surface of the fixing frame (3) and the input end of the hot air blower (24); a discharge pipe (36) is fixedly connected between the inner lower surface of the mixing tank (37) and the inner wall of the dye bath (1); a first placement rod (51) is rotatably connected to the lower end of the inner wall of the dye bath (1); and a second placement rod (61) is rotatably connected to the upper end of the inner wall of the dye bath (1) and located on one side of the first placement rod (51).
2. A one-bath dyeing device for polyester-cotton fabric dyeing as claimed in claim 1, characterized in that: The lower surface of the fixed frame (3) is fixedly connected to a stirring motor (34), the inner lower surface of the mixing tank (37) is rotatably connected to a stirring rod (35), and one end of the stirring rod (35) is fixedly connected to the output end of the stirring motor (34).
3. A one-bath dyeing device for dyeing polyester-cotton fabrics as claimed in claim 2, characterized in that: The upper surface of the fixed frame (3) is fixedly connected to a support frame (4), the lower surface of one end of the support frame (4) is fixedly connected to a cylinder (41), the movable end of the cylinder (41) is fixedly connected to a piston (42), and the size of the piston (42) matches the size of the mixing tank (37).
4. A one-bath dyeing device for dyeing polyester-cotton fabrics as claimed in claim 1, characterized in that: A first transmission motor (5) is fixedly connected to the side wall of the dye bath (1) and located on one side of the hot air blower (24); the output end of the first transmission motor (5) is fixedly connected to one end of a first placement rod (51); a first stirring blade (52) is rotatably connected to the upper end of the inner wall of the dye bath (1) and is located on one side of a second placement rod (61); one end of the first stirring blade (52) and one end of the first placement rod (51) are both fixedly connected to a first pulley (53); and the two first pulleys (53) are connected via a belt drive.
5. A one-bath dyeing device for dyeing polyester-cotton fabrics as claimed in claim 1, characterized in that: A second transmission motor (6) is fixedly connected to a side wall of the dye bath (1) away from the first transmission motor (5); an output end of the second transmission motor (6) is fixedly connected to one end of a second placement rod (61); a second stirring blade (62) is rotatably connected to the lower end of the inner wall of the dye bath (1) and is located on one side of the first placement rod (51); one end of the second stirring blade (62) and one end of the second placement rod (61) are both fixedly connected to a second pulley; the two second pulleys are connected via a belt drive.
6. A one-bath dyeing device for dyeing polyester-cotton fabrics as claimed in claim 1, characterized in that: A liquid discharge valve is fixedly connected to the side wall of the dye bath (1) and located below the second transmission motor (6), and a plurality of supporting legs are fixedly connected to the lower surface of the dye bath (1).