High-efficiency short-process less-water dyeing machine for polyester-cotton fabric

Abstract

The utility model relates to the technical field of printing and dyeing machinery, in particular to an efficient short-process less-water dyeing machine for polyester cotton fabrics, which comprises a rack and a dyeing machine body arranged on the rack, and a recycling device for recycling dye liquor in the dyeing machine body is arranged on the rack. According to the dyeing machine, the liquid pumping pump is started, liquid pumping is conducted on the interior of the dyeing machine body through the liquid return pipe, dye liquid is filtered through the filtering mechanism after being pumped out of the dyeing machine body, and the filtered dye liquid is guided into the cloth dipping groove; the cloth which is guided into the dyeing machine body to be dyed is firstly soaked in the cloth soaking tank under the action of the cloth guide mechanism, and the residual dye in the dye liquor in the cloth soaking tank can be used for primarily dyeing the cloth; therefore, the amount of the dye liquor required to be used when the cloth subsequently enters the dyeing machine body is reduced while the dye liquor is secondarily utilized, the utilization rate of the dye liquor is improved, and the use requirement of the dye liquor is greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of dyeing machinery, and in particular to a high-efficiency short-process and water-saving dyeing machine for polyester-cotton fabrics. Background Technique

[0002] Polyester-cotton fabric is a textile blended from polyester and cotton fibers, combining the strength, wear resistance, and wrinkle resistance of polyester with the comfort, moisture absorption, and breathability of cotton. Polyester-cotton fabrics usually need to be dyed using a dyeing machine during the production process.

[0003] In the related art, reference can be made to the Chinese utility model patent with the authorization publication number CN218345694U, which discloses a dyeing machine, relating to the technical field of printing and dyeing machinery equipment. It includes an auxiliary dyeing tube and a cloth guiding long tube. One end of the auxiliary dyeing tube is connected with a twisting tube, and the end of the twisting tube far from the auxiliary dyeing tube is connected with the cloth guiding long tube; a baffle is arranged inside the twisting tube.

[0004] However, during the use of the above dyeing machine, the fabric is directly fed into the dyeing machine for dyeing. Therefore, when the fabric is dyed, the amount of dye liquor required for the overall wetting of the fabric is large, and the amount of wastewater generated after dyeing is also large, which does not conform to the concept of environmentally friendly production. Utility Model Content

[0005] In order to improve the green and environmentally friendly production capacity of the dyeing machine, this application provides a high-efficiency short-process and water-saving dyeing machine for polyester-cotton fabrics.

[0006] A high-efficiency short-process and water-saving dyeing machine for polyester-cotton fabrics provided by this application adopts the following technical solutions:

[0007] A high-efficiency short-process and water-saving dyeing machine for polyester-cotton fabrics includes a frame and a dyeing machine body arranged on the frame. A recycling device for recycling the dye liquor in the dyeing machine body is arranged on the frame. The recycling device includes:

[0008] A return liquid pipe, which is arranged on the frame and communicated with the inside of the dyeing machine body. A liquid extraction pump is arranged on the return liquid pipe, and the return liquid pipe extracts the dyed dye liquor in the dyeing machine body through the liquid extraction pump;

[0009] An immersion trough, which is arranged on the frame and located at the fabric inlet of the dyeing machine body. The immersion trough collects the dye liquor led out by the return liquid pipe, and a drain pipe is arranged on the immersion trough;

[0010] A filtering mechanism, which is arranged on the frame and used for filtering the dye liquor extracted by the return liquid pipe;

[0011] The cloth guiding mechanism is arranged on the frame and is used to guide the cloth. Under the action of the cloth guiding mechanism, the cloth passes through the dyeing liquid in the cloth immersion tank and then enters into the dyeing machine body.

[0012] By adopting the above technical scheme, the liquid pump is started to pump liquid from the inside of the dyeing machine body through the liquid return pipe, and the dye liquid that has been dyed in the dyeing machine body is extracted. After the dye liquid is extracted from the dyeing machine body, it is filtered through a filtering mechanism, and the filtered dye liquid is introduced into the cloth immersion tank. The cloth that is to be introduced into the dyeing machine body for dyeing is first immersed in the cloth immersion tank under the action of the cloth guiding mechanism, and the remaining dye in the dye liquid in the cloth immersion tank can also be used for a primary dyeing of the cloth, thereby making a secondary use of the dye liquid while reducing the amount of dye liquid required when the cloth enters the dyeing machine body later, thereby improving the utilization rate of the dye liquid and greatly reducing the demand for dye liquid use; when the cloth is removed from the dyeing machine body, the cloth immersion tank can also take over the excess dye liquid on the cloth, thereby saving dye liquid resources while reducing the probability of dye liquid polluting the working environment, which is in line with the green and environmentally friendly production concept.

[0013] Optionally, the filtering mechanism includes:

[0014] A filter box, wherein the filter box is arranged on the frame, and the liquid return pipe is connected to the top wall of the filter box and communicated with the interior of the filter box;

[0015] A filter plate, wherein the filter plate is arranged on the filter box, and the filter plate receives and filters the dye liquid entering the filter box;

[0016] An activated carbon plate, wherein the activated carbon plate is arranged on the filter box and is located below the filter plate;

[0017] A cleaning component, which is arranged on the filter box and is used to clean impurities filtered out of the filter plate;

[0018] A liquid outlet pipe is arranged on the filter box and is connected with the cloth soaking tank. A liquid outlet pump is arranged on the liquid outlet pipe.

[0019] By adopting the above technical solution, the filter plate receives the dye liquid introduced into the filter box by the return pipe, filters out the solid particle impurities in the dye liquid, and the activated carbon plate adsorbs and removes the organic impurities and odor in the dye liquid, thereby reducing the probability of impurities in the dye liquid in the cloth soaking tank contaminating the cloth.

[0020] Optionally, the cleaning component includes:

[0021] A cleaning plate, the cleaning plate is horizontally slidably arranged on the filter box, and a cleaning brush is arranged at the bottom of the cleaning plate to contact the surface of the filter plate;

[0022] A moving member, the filter plate is arranged on the filter box and is used to drive the cleaning plate to move;

[0023] A waste collection box, the waste collection box is arranged on the outer side wall of the filter box, and a waste outlet hole communicating with the inside of the filter box is opened on the side wall of the waste collection box connected to the filter box, and the waste outlet hole communicates with the upper surface of the filter plate.

[0024] By adopting the above technical solution, when the moving member is started, it drives the cleaning plate to move, and the movement of the cleaning plate drives the cleaning brush to clean the surface of the filter plate. The cleaning brush sweeps the impurities on the filter plate so that they enter the waste collection box through the waste outlet hole, thus completing the cleaning work of the impurities on the filter plate.

[0025] Optionally, the moving member includes:

[0026] A moving lead screw, the moving lead screw is rotatably arranged on the filter box, and the moving lead screw is threadedly connected to the cleaning plate;

[0027] A moving motor, the moving motor is arranged on the filter box and the output shaft is connected to the moving lead screw.

[0028] By adopting the above technical solution, when the moving motor is started, it drives the moving lead screw to rotate, and the rotation of the moving lead screw drives the cleaning plate to move, thereby realizing the movement of the cleaning plate by controlling the moving motor.

[0029] Optionally, the cloth guiding mechanism includes:

[0030] A first cloth guiding roller and a second cloth guiding roller, both the first cloth guiding roller and the second cloth guiding roller are rotatably arranged on the dipping tank, and the first cloth guiding roller and the second cloth guiding roller are respectively located at two ends of the dipping tank close to and far from the dyeing machine body;

[0031] A third cloth guiding roller, the third cloth guiding roller is vertically slidably arranged on the dipping tank, and the cloth bypasses the second cloth guiding roller, the third cloth guiding roller and the first cloth guiding roller in sequence;

[0032] A driving assembly, the driving assembly is arranged on the dipping tank and is used to drive the third cloth guiding roller to move, and the third cloth guiding roller presses the cloth into the dipping tank under the action of the driving assembly.

[0033] By adopting the above technical solution, the first cloth guiding roller, the second cloth guiding roller and the third cloth guiding roller are arranged on the dipping tank, and the cloth bypasses the second cloth guiding roller, the third cloth guiding roller and the first cloth guiding roller in sequence. Thus, by starting the driving assembly, the cloth bypassing the third cloth guiding roller can be immersed in the dye solution to complete the wetting work of the cloth. When the cloth is led out of the dyeing machine body, only by controlling the third cloth guiding roller to move out of the dye solution in the dipping tank through the driving assembly can the cloth discharging work be realized.

[0034] Optionally, the driving assembly includes:

[0035] A driving block, which is vertically slidably arranged on the cloth dipping tank, and the third cloth guiding roller is rotatably arranged on the driving block;

[0036] A driving lead screw, which is rotatably arranged on the cloth dipping tank and is threadedly connected to the third cloth guiding roller;

[0037] A driving motor, which is arranged on the cloth dipping tank and the output shaft of which is connected to the driving lead screw.

[0038] By adopting the above technical solution, the driving motor drives the driving lead screw to rotate, the driving lead screw rotates to drive the driving block to move, and the driving block moves to drive the third cloth guiding roller to move, so that the movement of the third cloth guiding roller is realized by controlling the driving motor.

[0039] Optionally, a liquid level sensor is arranged on the cloth dipping tank, a warning lamp is arranged on the cloth dipping tank, and a controller is arranged on the cloth dipping tank. The controller is electrically connected to both the liquid level sensor and the warning lamp.

[0040] By adopting the above technical solution, the liquid level sensor senses the inner liquid level of the cloth dipping tank. When the dyeing liquid in the cloth dipping tank is about to overflow, the liquid level sensor sends a signal to the controller, and the controller controls the warning lamp to light up, so as to remind the staff to drain the cloth dipping tank in time, reducing the probability that the dyeing liquid in the cloth dipping tank overflows and pollutes the working environment.

[0041] In summary, the present application includes at least one of the following beneficial technical effects:

[0042] 1. By starting the liquid pumping pump to pump the liquid inside the dyeing machine body through the liquid return pipe, the dyeing liquid that has undergone the dyeing work in the dyeing machine body is pumped out. After being pumped out from the dyeing machine body, these dyeing liquids are filtered by the filtering mechanism, and the filtered dyeing liquid is introduced into the cloth dipping tank. The cloth that is about to be introduced into the dyeing machine body for dyeing work is first immersed in the cloth dipping tank under the action of the cloth guiding mechanism. The remaining dyes in the dyeing liquid in the cloth dipping tank can also perform a preliminary dyeing on the cloth. Thus, while the dyeing liquid is reused, the amount of dyeing liquid required when the cloth enters the dyeing machine body subsequently is reduced, the utilization rate of the dyeing liquid is improved, and the demand for the dyeing liquid is greatly reduced;

[0043] 2. By arranging the first cloth guiding roller, the second cloth guiding roller and the third cloth guiding roller on the cloth dipping tank, the cloth bypasses the second cloth guiding roller, the third cloth guiding roller and the first cloth guiding roller in sequence. Thus, by starting the driving assembly, the cloth bypassing the third cloth guiding roller can be immersed in the dyeing liquid, and the wetting work of the cloth is completed. When the cloth is led out from the dyeing machine body, only by controlling the third cloth guiding roller to move out of the dyeing liquid in the cloth dipping tank through the driving assembly, the cloth discharging work can be realized;

[0044] 3. The liquid level in the dipping tank is sensed by a liquid level sensor. When the dye liquor in the dipping tank is about to overflow, the liquid level sensor sends a signal to the controller, and the controller controls the warning light to turn on, thus reminding the staff to drain the dipping tank in time and reducing the probability of the dye liquor in the dipping tank overflowing and polluting the working environment in the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic three-dimensional structure diagram of the present application;

[0046] Figure 2 is a schematic structure diagram of the recycling device in the present application, in which the side walls of the filter box and the waste collection box are sectioned.

[0047] Reference numerals: 1, frame; 11, dyeing machine body; 12, liquid level sensor; 13, warning light; 14, controller; 2, recycling device; 21, return pipe; 22, filtering mechanism; 23, dipping tank; 24, cloth guiding mechanism; 25, liquid pumping pump; 31, filter box; 32, filter plate; 33, activated carbon plate; 34, cleaning assembly; 35, liquid outlet pipe; 36, cleaning plate; 37, moving member; 371, moving lead screw; 372, moving motor; 38, waste collection box; 41, first cloth guiding roller; 42, second cloth guiding roller; 43, third cloth guiding roller; 44, driving assembly; 45, driving block; 46, driving lead screw; 47, driving motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0048] The following is a further detailed description of the present application in conjunction with the attached Figure 1 - attached Figure 2 drawings.

[0049] The embodiment of the present application discloses a high-efficiency short-process and less-water dyeing machine for polyester-cotton fabrics.

[0050] Referring to Figure 1 , the high-efficiency short-process and less-water dyeing machine for polyester-cotton fabrics includes a frame 1 and a dyeing machine body 11 arranged on the frame 1, and a recycling device 2 for recycling the dye liquor in the dyeing machine body 11 is arranged on the frame 1.

[0051] Referring to Figure 1 and Figure 2 , the recycling device 2 includes a return pipe 21, a filtering mechanism 22, a dipping tank 23 and a cloth guiding mechanism 24. One end of the return pipe 21 is fixedly connected to the outer side wall of the dyeing machine body 11 and is communicated with the inside of the dyeing machine body 11. A liquid pumping pump 25 is installed on the return pipe 21, and the return pipe 21 pumps out the dyed dye liquor in the dyeing machine body 11 through the liquid pumping pump 25. The filtering mechanism 22 is arranged on the frame 1 and is used for filtering the dye liquor pumped out by the return pipe 21.

[0052] Referring to Figure 1 andFigure 2 The filtering mechanism 22 includes a filtering box 31, a filtering plate 32, an activated carbon plate 33, a cleaning assembly 34 and a liquid outlet pipe 35. The filtering box 31 is fixedly installed on the frame 1. The filtering plate 32 is fixedly installed on the inner side wall of the filtering box 31. One end of the liquid return pipe 21 away from the dyeing machine body 11 is fixedly connected to the upper surface of the filtering box 31 and is communicated with the inside of the filtering box 31. The filtering plate 32 receives the dyeing liquid discharged from the liquid return pipe 21 into the filtering box 31. The filtering plate 32 filters out the solid particle impurities in the dyeing liquid. The activated carbon plate 33 is fixedly installed on the inner side wall of the filtering box 31 below the filtering plate 32. The activated carbon plate 33 adsorbs and removes the organic impurities and peculiar smell in the dyeing liquid.

[0053] Refer to Figure 1 and Figure 2 As shown in FIGS. and, the cleaning assembly 34 is arranged on the filtering box 31 and is used for cleaning the impurities filtered out on the filtering plate 32. The cleaning assembly 34 includes a cleaning plate 36, a moving member 37 and a waste collection box 38. The cleaning plate 36 is horizontally slidably installed on the inner side wall of the filtering box 31. The filtering plate 32 is arranged on the filtering box 31 and is used for driving the cleaning plate 36 to move. The waste collection box 38 is fixedly connected to the outer side wall of the filtering box 31. A waste outlet hole communicating with the inside of the filtering box 31 is formed in the side wall of the waste collection box 38 connected to the filtering box 31. The waste outlet hole is communicated with the upper surface of the filtering plate 32.

[0054] Refer to Figure 1 and Figure 2 As shown in FIGS. and, the moving member 37 includes a moving lead screw 371 and a moving motor 372. The moving lead screw 371 is rotatably installed on the filtering box 31 and is threadedly connected to the cleaning plate 36. The moving motor 372 is fixedly installed on the outer side wall of the filtering box 31 and the output shaft is fixedly connected to the moving lead screw 371. When the moving motor 372 is started, it drives the moving lead screw 371 to rotate. The rotation of the moving lead screw 371 drives the cleaning plate 36 to move. The movement of the cleaning plate 36 drives the cleaning brush to clean the surface of the filtering plate 32. The cleaning brush sweeps the impurities on the filtering plate 32 to make them enter the waste collection box 38 through the waste outlet hole for centralized collection, thus completing the cleaning work of the impurities on the filtering plate 32.

[0055] Refer to Figure 1 and Figure 2 As shown in FIGS. and, one end of the liquid outlet pipe 35 is fixedly installed at the bottom of the filtering box 31 and is communicated with the inside of the filtering box 31. A liquid outlet pump is arranged on the liquid outlet pipe 35. The dipping tank 23 is fixedly installed on the frame 1 and is located at the fabric inlet of the dyeing machine body 11. A drain pipe is fixedly installed on the lower surface of the dipping tank 23. One end of the liquid outlet pipe 35 away from the filtering box 31 is connected to the outer side wall of the dipping tank 23 and is communicated with the inside of the dipping tank 23. The fabric guiding mechanism 24 is arranged on the frame 1 and is used for guiding the fabric. The fabric enters the dyeing machine body 11 after passing through the dipping tank 23 under the action of the fabric guiding mechanism 24.

[0056] Reference Figure 1 and Figure 2 The cloth guiding mechanism 24 includes a first cloth guiding roller 41, a second cloth guiding roller 42, a third cloth guiding roller 43 and a driving assembly 44. The first cloth guiding roller 41 and the second cloth guiding roller 42 are both rotatably mounted on the upper surface of the cloth soaking tank 23, and the first cloth guiding roller 41 and the second cloth guiding roller 42 are respectively located at the two ends of the cloth soaking tank 23 close to and far from the dyeing machine body 11. The third cloth guiding roller 43 is vertically slidably mounted on the inner side wall of the cloth soaking tank 23 between the first cloth guiding roller 41 and the second cloth guiding roller 42 through the driving assembly 44. The cloth passes around the second cloth guiding roller 42, the third cloth guiding roller 43 and the first cloth guiding roller 41 in sequence, and the third cloth guiding roller 43 presses the cloth into the cloth soaking tank 23 under the action of the driving assembly 44.

[0057] Reference Figure 1 and Figure 2 The driving assembly 44 includes a driving block 45, a driving screw 46 and a driving motor 47. A vertical sliding groove is provided on the inner wall of the fabric soaking tank 23. The driving block 45 is slidably mounted on the sliding groove. The third fabric guide roller 43 is rotatably mounted on the outer wall of the sliding groove. The driving screw 46 is rotatably mounted on the fabric soaking tank 23 and is located in the sliding groove. The driving screw 46 is threadedly connected to the driving block 45. The driving motor 47 is fixedly mounted on the upper surface of the fabric soaking tank 23 and the output shaft is vertically downward and fixedly connected to the driving screw 46.

[0058] Reference Figure 1 and Figure 2 When the cloth bypasses the second cloth guide roller 42, the third cloth guide roller 43 and the first cloth guide roller 41 and is introduced into the dyeing machine body 11, the driving motor 47 starts to drive the driving screw 46 to rotate, the driving screw 46 rotates to drive the driving block 45 to move downward, the driving block 45 moves downward to drive the third cloth guide roller 43 to move downward, and the third cloth guide roller 43 immerses the cloth into the dye liquid in the cloth immersion tank 23. While the dye liquid in the cloth immersion tank 23 soaks the dry cloth, the remaining dye in the dye liquid can also perform a primary dyeing on the cloth, thereby completing the secondary use of the dye liquid, reducing the amount of dye liquid needed when the cloth enters the dyeing machine body 11 later, improving the utilization rate of the dye liquid, and greatly reducing the demand for dye liquid use.

[0059] Reference Figure 1 and Figure 2 When the cloth passes by the first cloth guide roller 41, the third cloth guide roller 43 and the second cloth guide roller 42 and is led out of the dyeing machine body 11, the driving motor 47 is started to drive the third cloth guide roller 43 to move out of the dye liquid, and the third cloth guide roller 43 cooperates with the first cloth guide roller 41 and the second cloth guide roller 42 to lead out the cloth. At this time, the cloth immersion tank 23 can receive the excess dye liquid on the cloth, which saves dye liquid resources and reduces the probability of dye liquid flowing into the working environment and causing pollution to the working environment.

[0060] Reference Figure 1 and Figure 2 Figure 2 , a liquid level sensor 12 and a warning light 13 are fixedly installed on the dipping tank 23. A controller 14 is also arranged on the dipping tank 23. The controller 14 is electrically connected to both the liquid level sensor 12 and the warning light 13. The liquid level sensor 12 senses the inner liquid level of the dipping tank 23. When the dye liquor in the dipping tank 23 is about to overflow, the liquid level sensor 12 sends a signal to the controller 14, and the controller 14 controls the warning light 13 to light up, thereby reminding the staff to drain the dipping tank 23 in time, reducing the probability that the dye liquor in the dipping tank 23 overflows and pollutes the working environment in the working environment.

[0061] The working principle of the embodiment of the present application is as follows:

[0062] The liquid extraction pump 25 is started to extract the liquid inside the dyeing machine body 11 through the return pipe 21, and the dye liquor that has undergone the dyeing work in the dyeing machine body 11 is extracted. After being filtered by the filter plate 32 and the activated carbon plate 33, these dye liquors are introduced into the dipping tank 23. When the fabric bypasses the second fabric guide roller 42, the third fabric guide roller 43 and the first fabric guide roller 41 and is introduced into the dyeing machine body 11, the drive motor 47 is started to drive the third fabric guide roller 43 to move downward, and the third fabric guide roller 43 immerses the fabric into the dye liquor in the dipping tank 23. While the dye liquor in the dipping tank 23 wets the fabric to be dried, the remaining dyes in the dye liquor can also perform a preliminary dyeing on the fabric, thus completing the secondary utilization of the dye liquor, reducing the amount of dye liquor required when the fabric subsequently enters the dyeing machine body 11, improving the utilization rate of the dye liquor, and greatly reducing the demand for the dye liquor.

[0063] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An efficient short-process and less-water dyeing machine for polyester-cotton fabric, characterized in that: It includes a frame (1) and a dyeing machine body (11) arranged on the frame (1). A recycling device (2) for recycling the dye liquor in the dyeing machine body (11) is arranged on the frame (1). The recycling device (2) includes: A liquid return pipe (21) which is arranged on the frame (1) and is in communication with the interior of the dyeing machine body (11). A liquid extraction pump (25) is arranged on the liquid return pipe (21). The liquid return pipe (21) extracts the dyed dye liquor in the dyeing machine body (11) through the liquid extraction pump (25); A cloth dipping tank (23) which is arranged on the frame (1) and is located at the fabric inlet of the dyeing machine body (11). The cloth dipping tank (23) collects the dye liquor led out by the liquid return pipe (21), and a drain pipe is arranged on the cloth dipping tank (23); A filtering mechanism (22) which is arranged on the frame (1) and is used for filtering the dye liquor extracted by the liquid return pipe (21); A cloth guiding mechanism (24) which is arranged on the frame (1) and is used for guiding the fabric. The fabric enters the dyeing machine body (11) after passing through the dye liquor in the cloth dipping tank (23) under the action of the cloth guiding mechanism (24).

2. The high-efficiency short-process low-water dyeing machine for polyester-cotton fabric according to claim 1, wherein: The filtering mechanism (22) includes: A filtering box (31) which is arranged on the frame (1). The liquid return pipe (21) is connected to the top wall of the filtering box (31) and is in communication with the interior of the filtering box (31); A filtering plate (32) which is arranged on the filtering box (31). The filtering plate (32) receives and filters the dye liquor entering the filtering box (31); An activated carbon plate (33) which is arranged on the filtering box (31) and is located below the filtering plate (32); A cleaning component (34) which is arranged on the filtering box (31) and is used for cleaning the impurities filtered out on the filtering plate (32); An outlet pipe (35) which is arranged on the filtering box (31) and is in communication with the cloth dipping tank (23). An outlet liquid pump is arranged on the outlet pipe (35).

3. An efficient short-process and less-water dyeing machine for polyester-cotton fabric according to claim 2, characterized in that: The cleaning component (34) includes: A cleaning plate (36) which is horizontally slidably arranged on the filtering box (31). A cleaning brush which abuts against the surface of the filtering plate (32) is arranged at the bottom of the cleaning plate (36); A moving member (37) which is arranged on the filtering box (31) and is used for driving the cleaning plate (36) to move; A waste collection box (38) which is arranged on the outer side wall of the filtering box (31). A waste outlet hole which is in communication with the interior of the filtering box (31) is opened on the side wall of the waste collection box (38) connected to the filtering box (31), and the waste outlet hole is in communication with the upper surface of the filtering plate (32).

4. An efficient short-process and water-saving dyeing machine for polyester-cotton fabric according to claim 3, characterized in that: The moving member (37) includes: A moving lead screw (371) which is rotatably arranged on the filtering box (31). The moving lead screw (371) is in threaded connection with the cleaning plate (36); A moving motor (372) is provided on the filter box (31) and its output shaft is connected to the moving lead screw (371).

5. An efficient short-process and water-saving dyeing machine for polyester-cotton fabric according to claim 1, characterized in that: The cloth guiding mechanism (24) includes: A first cloth guiding roller (41) and a second cloth guiding roller (42). The first cloth guiding roller (41) and the second cloth guiding roller (42) are both rotatably arranged on the cloth dipping tank (23), and the first cloth guiding roller (41) and the second cloth guiding roller (42) are respectively located at two ends of the cloth dipping tank (23) close to and away from the dyeing machine body (11); A third cloth guiding roller (43) is vertically slidably arranged on the cloth dipping tank (23), and the cloth sequentially bypasses the second cloth guiding roller (42), the third cloth guiding roller (43) and the first cloth guiding roller (41); A driving assembly (44) is arranged on the cloth dipping tank (23) and is used to drive the third cloth guiding roller (43) to move. The third cloth guiding roller (43) presses the cloth into the cloth dipping tank (23) under the action of the driving assembly (44).

6. An efficient short-process and less-water dyeing machine for polyester-cotton fabrics according to claim 5, characterized in that: The driving assembly (44) includes: A driving block (45) is vertically slidably arranged on the cloth dipping tank (23), and the third cloth guiding roller (43) is rotatably arranged on the driving block (45); A driving lead screw (46) is rotatably arranged on the cloth dipping tank (23) and is threadedly connected to the third cloth guiding roller (43); A driving motor (47) is arranged on the cloth dipping tank (23) and its output shaft is connected to the driving lead screw (46).

7. An efficient short process and low-water dyeing machine for polyester-cotton fabric according to claim 1, characterized in that: A liquid level sensor (12) is arranged on the cloth dipping tank (23), a warning light (13) is arranged on the cloth dipping tank (23), a controller (14) is arranged on the cloth dipping tank (23), and the controller (14) is electrically connected to both the liquid level sensor (12) and the warning light (13).

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