Water-saving washing technology and equipment for knitted fabrics

Abstract

The present invention relates to the technical field of fabric washing equipment, and in particular to a knitted fabric water-saving washing process and washing equipment, the washing equipment comprising a frame, an arc-shaped water tank arranged on the frame, and a plurality of ultrasonic vibrators arranged on the arc-shaped water tank, the ultrasonic vibrators are externally connected to an ultrasonic generator, the arc-shaped water tank has an inner arc plate and an outer arc plate arranged coaxially, the front and rear ends of the inner arc plate and the outer arc plate are closed by two arc-shaped closing plates, the inner arc plate is formed by splicing a plurality of strip plates arranged circumferentially around the axis of the arc-shaped water tank, the plurality of ultrasonic vibrators are arranged on a plurality of strip plates, a plurality of second cloth guide rollers and a plurality of first cloth guide rollers corresponding to the positions of the ultrasonic vibrators are arranged between the two arc-shaped closing plates, and the first cloth guide rollers are arranged close to the strip plates on which the corresponding ultrasonic vibrators are installed. The knitted fabric water-saving washing process and washing equipment of the present invention are convenient for repairing the ultrasonic vibrators, are beneficial to the heat dissipation of the ultrasonic vibrators and their electrical equipment, and can reduce water consumption.

Description

Technical Field

[0001] The invention relates to the technical field of textile washing equipment, in particular to a knitted fabric water-saving washing process and washing equipment. Background Art

[0002] In the printing and dyeing process, cleaning is a necessary step for fabrics. Most of the existing cleaning equipment uses a washing box. There are multiple washing processes in the washing box to ensure the quality of the final product of the washed fabric. In order to improve the washing effect, the amount of clean water used is very large, resulting in the consumption of a large amount of resources. At the same time, the washing efficiency of fabrics in traditional washing boxes is relatively low. Dirt and oil on the surface of the fabric are not cleaned properly, which will increase the production cost. The ultrasonic cleaning machine uses the high-frequency oscillation signal emitted by the ultrasonic generator, which is converted into high-frequency mechanical oscillation by the transducer and propagated to the medium (cleaning solvent), causing the liquid flow to generate tens of thousands of tiny bubbles, which vibrate under the action of the sound field. It forms and grows in the negative pressure area and closes in the positive pressure area to generate shock waves, destroying insoluble dirt and dispersing it in the cleaning liquid to achieve the cleaning purpose. The ultrasonic cleaning machine has the characteristics of good cleaning effect and simple operation, and is an ideal equipment for cleaning fabrics. Existing ultrasonic cleaning machines generally adopt two cleaning structures: the first cleaning structure is to set a rotatable ultrasonic roller in a water tank full of cleaning liquid. When the fabric is wrapped around the ultrasonic roller for transportation, the ultrasonic generator in the ultrasonic roller emits ultrasonic waves and transmits them to the water tank. This cleaning structure makes the fabric as close to the ultrasonic generator as possible to improve the cleaning effect, but the ultrasonic generator needs to be sealed and installed in a roller, which makes the overall structure of the ultrasonic roller complicated and is not conducive to the heat dissipation of the ultrasonic sounder. The ultrasonic generator is very inconvenient to repair after damage. The second cleaning structure is to set multiple cloth guide rollers in the water tank and set ultrasonic sounders at the bottom or side of the water tank. This cleaning structure is convenient for repairing the ultrasonic generator, but to achieve a better cleaning effect, it is necessary to use a larger water tank and more cloth guide rollers to extend the cleaning time, but this increases the water consumption of the water tank. Summary of the invention

[0003] In order to overcome the technical defects of the prior art, the present invention provides a water-saving water washing process and water washing equipment for knitted fabrics, which facilitates the maintenance of ultrasonic vibrators while ensuring the cleaning effect, is beneficial to the heat dissipation of ultrasonic vibrators and their electrical structures, and can reduce water consumption.

[0004] The technical solution adopted by the present invention is: a water washing device, including a frame, an arc-shaped water tank installed on the frame and a plurality of ultrasonic vibrators arranged on the arc-shaped water tank, the ultrasonic vibrators are externally connected to an ultrasonic generator, the arc-shaped water tank has an inner arc plate and an outer arc plate arranged coaxially, the front and rear ends of the inner arc plate and the outer arc plate are closed by two arc-shaped closing plates, a cloth inlet and a cloth outlet are arranged on the upper part of the arc-shaped water tank, the inner arc plate is formed by splicing a plurality of strip plates arranged circumferentially around the axis of the arc-shaped water tank, the plurality of ultrasonic vibrators are arranged on a plurality of strip plates, a plurality of cloth guide rollers are arranged between two of the arc-shaped closing plates, the plurality of cloth guide rollers include a second cloth guide roller and a plurality of first cloth guide rollers corresponding to the positions of the ultrasonic vibrators, the first cloth guide rollers are arranged close to the strip plates on which the corresponding ultrasonic vibrators are installed.

[0005] Preferably, the ultrasonic vibrator is detachably mounted on the strip plate, the ultrasonic vibrator is detachably mounted on the strip plate through a vibration plate, two rows of slide grooves are arranged opposite to each other on the strip plate, the two ends of the vibration plate are inserted into the corresponding two slide grooves, and the vibration plate is bonded to the strip plate by an adhesive.

[0006] Preferably, the cloth inlet and the cloth outlet are each provided with a power roller, and the power roller is externally connected to a driving part.

[0007] Preferably, a first circulation pipe is provided at the bottom of the arc-shaped water tank, both ends of the first circulation pipe are connected to the arc-shaped water tank, and a circulation water pump, a wastewater detection device and an ultrasonic module are sequentially provided on the first circulation pipe.

[0008] Preferably, the water washing equipment also includes a circulating filtration system connected to the arc-shaped water tank, the circulating filtration system includes a second circulating pipe and a purified water tank, the first end and the second end of the second circulating pipe are both connected to the arc-shaped water tank, the purified water tank is connected to the second circulating pipe, and a water intake pump and a water supply pump are respectively provided on the first end and the second end of the second circulating pipe.

[0009] Preferably, the first cloth guide roller includes a roller body, the roller body has a water channel parallel to its axis and a plurality of cleaning holes, the plurality of cleaning holes are distributed on the surface of the roller body and connected to the water channel, the water channel is connected to the second end of the second circulation pipe, a backflow pipe is provided between the first end and the second end of the second circulation pipe, a water intake valve is provided on the second circulation pipe between the water intake pump and the purified water tank, the first end of the backflow pipe is connected to the second circulation pipe between the water intake pump and the water intake valve, and the second end of the backflow pipe is connected to the second circulation pipe on the water outlet side of the water supply pump.

[0010] Preferably, the roller body is a hollow roller, and a closed column is coaxially provided inside the roller body. Both ends of the closed column are fixedly connected to the water tank. The roller body can be rotatably mounted on the arc-shaped water tank and rotatably cooperate with the closed column. A plurality of strip grooves are provided on the closed column, and the plurality of strip grooves and the inner wall of the roller body form the water channel. A water supply channel connecting the strip grooves and the second circulation pipeline is provided on the closed column.

[0011] Preferably, a mechanical seal seat is provided on the arc-shaped closing plate, the roller body is inserted into the mechanical seal seat and rotatably cooperates with the mechanical seal seat, the end of the closing column passes through the roller body and is fixedly connected to the arc-shaped closing plate through a U-shaped frame, the end of the roller body and the end of the closing column are rotatably cooperated through a bearing, the inner ring of the bearing is sleeved and fixed on the closing column, and the inner wall of the roller body is fixedly connected to the outer ring of the bearing.

[0012] Preferably, the purified water tank has a connected filter chamber, a flocculation chamber, a decolorization chamber and a water storage chamber, and the filter chamber, the flocculation chamber, the decolorization chamber and the water storage chamber are connected in sequence through pipes, and water pumps are provided on the pipes. The water storage chamber is externally connected to a water supply pipe.

[0013] The water-saving washing process of knitted fabrics comprises the following steps:

[0014] S1, threading the fabric, passing the fabric through the fabric inlet of the arc-shaped water tank and out of the fabric outlet, and winding the fabric around a plurality of fabric guide rollers;

[0015] S2, start the water pump to put water into the arc-shaped water tank, and when the water reaches a predetermined amount, turn off the water pump;

[0016] S3, the fabric starts to be transported, the ultrasonic vibrator starts, the circulating water pump starts, and the ultrasonic module starts;

[0017] S4. When the wastewater detection device detects that the water quality in the first circulation pipeline reaches or exceeds the predetermined parameter, the water intake pump and the water delivery pump are started simultaneously;

[0018] S5. When the wastewater detection device detects that the water quality in the first circulation pipeline is lower than the predetermined parameter, the water intake pump and the water delivery pump are turned off;

[0019] S6. When the wastewater detection device detects that the water quality in the first circulation pipe reaches or exceeds the predetermined parameter, return to S4.

[0020] Preferably, the ultrasonic vibrators on adjacent strip plates of the arc-shaped water tank in S3 operate alternately.

[0021] The beneficial effects of the present invention are as follows: the water washing device of the present invention adopts an arc-shaped water tank, which has a greatly reduced volume compared to a conventional cubic water tank, thereby reducing the amount of water used. The first cloth guide rollers of the present embodiment are all arranged close to the ultrasonic vibrator, and the arrangement of multiple first cloth guide rollers and multiple rows of ultrasonic vibrators enables the knitted fabric to be repeatedly washed, thereby ensuring the ultrasonic cleaning effect.

[0022] In addition, the ultrasonic vibrator and ultrasonic generator of the present invention are both installed on the outside of the arc-shaped water tank, which is very convenient for maintenance or replacement. The damage of a single ultrasonic vibrator does not require shutdown for maintenance, which greatly reduces the difficulty of maintenance. At the same time, the electrical equipment serving the ultrasonic vibrator is all arranged on the outside of the arc-shaped water tank, which is conducive to heat dissipation. The temperature of the washing liquid in the water tank will not affect the ultrasonic vibrator and the ultrasonic generator. The increase in the temperature of the washing liquid ensures the washing effect without affecting the electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the water washing equipment of the present invention.

[0024] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0025] Figure 3 It is a cross-sectional view of the arc-shaped water tank of the present invention.

[0026] Figure 4 It is a schematic structural diagram of the first cloth guide roller of the present invention.

[0027] Figure 5 for Figure 4 Cross-sectional view of the first cloth guide roller along direction BB.

[0028] Figure 6 This is a schematic diagram of the installation of the first cloth guide roller of the present invention.

[0029] Description of reference numerals: 1. frame;

[0030] 2. Arc water tank; 201. Inner arc plate; 2011. Strip plate; 2012. Slide; 202. Outer arc plate; 203. Arc closing plate; 204. Second cloth guide roller; 2041. First cloth guide roller; 20411. Roller body; 20412. Cleaning channel; 20413. Water channel; 20414. Closing column; 204141. Strip groove; 204142. Water delivery channel; 20415. Bearing; 20416. U-shaped frame; 20418. Second sealing ring; 205. Power roller; 206. Cloth inlet; 207. Cloth outlet; 208. Mechanical sealing seat.

[0031] 301, ultrasonic vibrator; 302, vibration plate;

[0032] 4. First circulation pipeline; 401. Circulating water pump; 402. Wastewater detection device; 403. Ultrasonic module;

[0033] 5. Circulation filtration system; 501. Second circulation pipeline; 502. Purified water tank; 5021. Filtration chamber; 5022. Flocculation chamber; 5023. Decolorization chamber; 5024. Water storage chamber; 503. Water pump; 504. Water intake pump; 505. Water delivery pump; 506. Water supply pipeline; 507. Backflow pipeline. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings:

[0035] like Figures 1 to 6 As shown, this embodiment provides a washing device, including a frame 1, an arc-shaped water tank 2 installed on the frame 1, and a plurality of ultrasonic vibrators 301 arranged on the arc-shaped water tank 2, wherein the ultrasonic vibrators 301 are externally connected to an ultrasonic generator, the arc-shaped water tank 2 has an inner arc plate 201 and an outer arc plate 202 arranged coaxially, the front and rear ends of the inner arc plate 201 and the outer arc plate 202 are closed by two arc-shaped closing plates 203, a cloth inlet 206 and a cloth outlet 207 are arranged at the upper part of the arc-shaped water tank 2, and a power roller 205 is respectively provided at the cloth inlet 206 and the cloth outlet 207, and the power roller 205 is externally connected to a driving part, the inner arc plate 201 is spliced ​​by a plurality of strip plates 2011 arranged circumferentially around the axis of the arc-shaped water tank 2, the plurality of ultrasonic vibrators 301 are separately arranged on the plurality of strip plates 2011, and the two strip plates 2011 are respectively arranged on the inner arc plate 201 and the outer arc plate 202. A plurality of cloth guide rollers are arranged between the arc-shaped closed plates 203, and the plurality of cloth guide rollers include a plurality of second cloth guide rollers 204 and a plurality of first cloth guide rollers 2041 corresponding to the positions of the ultrasonic vibrators 301. The first cloth guide rollers 2041 are arranged close to the strip plate 2011 on which the corresponding ultrasonic vibrators 301 are installed, and the second cloth guide rollers 204 are arranged close to the outer arc plate 202, and the positions of the second cloth guide rollers 204 and the first cloth guide rollers 2041 are staggered with each other, and the knitted fabric is transported and fed between the first cloth guide rollers 2041 and the second cloth guide rollers 204. When the washing equipment of this embodiment is working, the driving unit drives the two power rollers 205 to rotate, and the first cloth guide rollers 2041 and the second cloth guide rollers 204 are driven to rotate through the knitted fabric. At the same time, the second cloth guide roller 204 can be connected to the driving unit for transmission to ensure stable transmission of the knitted fabric.

[0036] The washing equipment of this embodiment adopts an arc-shaped water tank 2, which has a greatly reduced volume compared to a conventional cubic water tank, thereby reducing water consumption. The first cloth guide rollers 2041 of this embodiment are all arranged close to the ultrasonic vibrator 301, thereby ensuring an ultrasonic cleaning effect. The arrangement of multiple first cloth guide rollers 2041 and multiple columns of ultrasonic vibrators 301 allows knitted fabrics to be repeatedly cleaned.

[0037] In this embodiment, the ultrasonic vibrator 301 is detachably mounted on the strip plate 2011, and the ultrasonic vibrator 301 is detachably mounted on the strip plate 2011 through a vibration plate 302. Two rows of slide grooves 2012 arranged opposite to each other are provided on the strip plate 2011, and both ends of the vibration plate 302 are inserted into the corresponding two slide grooves 2012, and the vibration plate 302 is bonded to the strip plate 2011 by an adhesive. The ultrasonic vibrator 301 and the ultrasonic generator of this embodiment are both mounted on the outside of the arc-shaped water tank 2, which is very convenient for maintenance or replacement. The damage of a single ultrasonic vibrator 301 does not require shutdown for maintenance, which greatly reduces the difficulty of maintenance. At the same time, the electrical equipment serving the ultrasonic vibrator 301 is all arranged on the outside of the arc-shaped water tank 2, which is conducive to heat dissipation. The temperature of the washing liquid in the water tank will not affect the ultrasonic vibrator 301 and the ultrasonic generator. The increase in the temperature of the washing liquid ensures the washing effect without affecting the electrical equipment.

[0038] In this embodiment, a first circulation pipe 4 is provided at the bottom of the arc-shaped water tank 2, both ends of the first circulation pipe 4 are connected to the arc-shaped water tank 2, a circulation water pump 401, a wastewater detection device 402 and an ultrasonic module 403 are sequentially provided on the first circulation pipe 4, the water washing equipment also includes a circulation filtration system 5 connected to the arc-shaped water tank 2, the circulation filtration system 5 includes a second circulation pipe 501 and a purified water tank 502, the first end and the second end of the second circulation pipe 501 are connected to the arc-shaped water tank 2, the purified water tank 502 is connected to the second circulation pipe 501, a water intake pump 504 and a water delivery pump 505 are respectively provided on the first end and the second end of the second circulation pipe 501, the purified water tank 502 has a filtration chamber 5021, a flocculation chamber 5022, and a decolorization chamber 5021 connected to each other. 23 and a water storage chamber 5024, the filtering chamber 5021, the flocculation chamber 5022, the decolorization chamber 5023 and the water storage chamber 5024 are connected in sequence through pipelines, the pipelines are all provided with water pumps 503, the water storage chamber 5024 is externally connected with a water supply pipeline 506, the first circulation pipeline 4 of this embodiment is used to detect the cleanliness of the water in the arc water tank 2, and the ultrasonic module 403 is used to improve the mixing uniformity of solid impurities and liquid in the first circulation pipeline 4 to ensure the accuracy of the wastewater detection device 402, the ultrasonic module 403 includes a second ultrasonic vibrator arranged on the first circulation pipeline 4, the second ultrasonic vibrator is also externally connected to an ultrasonic generator, when it is detected that the water quality reaches or exceeds the predetermined parameters, the water intake pump 504 and the water delivery pump 505 are started, and the water in the arc water tank 2 is replaced through the second circulation pipeline 501.

[0039] This embodiment also provides a knitted fabric water-saving washing process, comprising the following steps:

[0040] S1, threading the cloth, passing the cloth through the cloth inlet 206 of the arc-shaped water tank 2, passing the cloth out from the cloth outlet 207, and winding the cloth around a plurality of cloth guide rollers;

[0041] S2, start the water pump 505 to put water into the arc-shaped water tank 2, and when the water reaches a predetermined amount, turn off the water pump 505;

[0042] S3, the fabric starts to be transported, the ultrasonic vibrator 301 is started, the circulating water pump 401 is started, and the ultrasonic module 403 is started;

[0043] S4, when the wastewater detection device 402 detects that the water quality in the first circulation pipe 4 reaches or exceeds the predetermined parameter, the water intake pump 504 and the water delivery pump 505 are started simultaneously;

[0044] S5. When the wastewater detection device 402 detects that the water quality in the first circulation pipeline 4 is lower than the predetermined parameter, the water intake pump 504 and the water delivery pump 505 are turned off;

[0045] S6. When the wastewater detection device 402 detects that the water quality in the first circulation pipe 4 reaches or exceeds the predetermined parameter, return to S4.

[0046] The ultrasonic vibrators 301 on the adjacent strip plates 2011 of the arc-shaped water tank 2 in S3 can operate alternately to reduce energy consumption.

[0047] Preferably, the first cloth guide roller 2041 includes a roller body 20411, and the roller body 20411 has a water channel 20413 parallel to its axis and a plurality of cleaning channels 20412, and the plurality of cleaning channels 20412 are distributed on the surface of the roller body 20411 and are connected to the water channel 20413, and the roller body 20411 can be rotatably mounted on the arc water tank 2, and the water channel 20413 is connected to the second end of the second circulation pipe 501, and a backflow pipe 507 is provided between the first end and the second end of the second circulation pipe 501, and a water intake valve is provided on the second circulation pipe 501 between the water intake pump 504 and the purified water tank 502, and the first end of the backflow pipe 507 is connected to the second circulation pipe 501 between the water intake pump 504 and the water intake valve, and the second end of the backflow pipe 507 is connected to the second circulation pipe 501 on the water outlet side of the water supply pump 505.

[0048] The roller body 20411 is a hollow roller, and a closing column 20414 is coaxially arranged inside the roller body 20411. Both ends of the closing column 20414 are fixedly connected to the water tank. The roller body 20411 is rotatably mounted on the arc-shaped water tank 2 through a bearing 20415 and rotatably cooperates with the closing column 20414. A plurality of strip grooves 204141 are arranged on the closing column 20414, and the plurality of strip grooves 204141 and the inner wall of the roller body 20411 form the water channel 20413. A water delivery channel 204142 is opened on the closing column 20414, which is connected to the strip groove 204141 and the second circulation pipeline 501. A mechanical seal seat 208 is arranged on the arc-shaped closing plate 203. The roller body 2041 1 is passed through the mechanical seal seat 208 and rotatably cooperates with the mechanical seal seat 208, two second sealing rings 20418 are respectively provided between the two ends of the roller body 20411 and the closing column 20414, the strip groove 204141 is provided between the two second sealing rings 20418 on the inner side, the end of the roller body 20411 and the end of the closing column 20414 are rotatably cooperated through the bearing 20415, the end of the closing column 20414 passes through the roller body 20411 and is fixedly connected to the arc-shaped closing plate 203 through the U-shaped frame 20416, the inner ring of the bearing 20415 is sleeved and fixed on the closing column 20414, and the inner wall of the roller body 20411 is fixedly connected to the outer ring of the bearing 20415.

[0049] Each closed column 20414 of the present embodiment is provided with at least two strip grooves 204141, and the positions of the two strip grooves 204141 correspond to the positions where the roller body 20411 and the fabric are about to contact and separate. Preferably, the roller body 20411 of the present embodiment is provided with multiple rows of cleaning channels 20412, and the multiple rows of cleaning channels 20412 are arranged circumferentially around the axis of the roller body 20411, and the slot width of the strip grooves 204141 is not less than the distance between two adjacent rows of cleaning channels 20412, so as to ensure that the water in the water channel 20413 is always Finally, the knitted fabric can flow out of the roller body 20411. During the water washing operation, the knitted fabric covers the surface of the roller body 20411 and covers the cleaning channel 20412 at the corresponding position of the roller body 20411. At this time, the closing column 20414 blocks the cleaning channel 20412 at this location. The ultrasonic wave emitted by the ultrasonic vibrator 301 acts on the knitted fabric, and part of the dirt shed from the knitted fabric is dispersed into the cleaning channel 20412. The continuously rotating first cloth guide roller 2041 separates the cleaning channel 20412 containing the dirt from the knitted fabric and the closing column 20414. When the cleaning channel 20412 containing the dirt is When the strip groove 204141 begins to overlap, the cleaning liquid circulating in the water channel 20413 can flush the dirt out of the cleaning channel 20412, ensuring the cleanliness of the first cloth guide roller 2041 and the cleaning channel 20412 thereon. The continuous rotation of the roller body 20411 prevents dirt from accumulating on the first cloth guide roller 2041 and affecting the washing effect. When washing, the user can close the water intake valve, open the water intake pump 504, and close the water supply pump 505, so that the arc-shaped water tank 2 circulates through the water channel 20413, the second circulation pipe 501 and the reflux pipe 507. When the water quality parameters in the tank are higher than the preset parameters, the water intake valve, water intake pump 504 and water delivery pump 505 are opened, so that the water in the water storage chamber 5024 is added to the circulation of the washing liquid. While realizing the water replacement operation, the flushing of the cleaning channel 20412 is realized. The reflux pipe 507 and the water intake pump 504 of this embodiment cooperate to make the washing liquid in the arc water tank 2 circulate continuously, and the flowing washing liquid continuously flushes the cleaning channel 20412 on the roller body 20411. The external purified water tank 502 will only be connected when the water quality does not meet the standard, thereby reducing the use of water resources to a certain extent.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Water washing equipment, characterized in that: It comprises a frame, an arc-shaped water tank mounted on the frame, and a plurality of ultrasonic vibrators arranged on the arc-shaped water tank, wherein the ultrasonic vibrators are externally connected to an ultrasonic generator, the arc-shaped water tank comprises an inner arc plate and an outer arc plate arranged coaxially, the front and rear ends of the inner arc plate and the outer arc plate are closed by two arc-shaped closing plates, a cloth inlet and a cloth outlet are arranged at the upper part of the arc-shaped water tank, the inner arc plate is formed by splicing a plurality of strip plates arranged circumferentially around the axis of the arc-shaped water tank, the plurality of ultrasonic vibrators are arranged on a plurality of strip plates, a plurality of cloth guide rollers are arranged between two of the arc-shaped closing plates, the plurality of cloth guide rollers comprise a second cloth guide roller and a plurality of first cloth guide rollers corresponding to the positions of the ultrasonic vibrators, the first cloth guide rollers are arranged close to the strip plates on which the corresponding ultrasonic vibrators are installed; A first circulation pipeline is provided at the bottom of the arc-shaped water tank, both ends of the first circulation pipeline are connected to the arc-shaped water tank, and a circulation water pump, a wastewater detection device and an ultrasonic module are sequentially provided on the first circulation pipeline; The water washing equipment also includes a circulation filtering system connected to the arc-shaped water tank, the circulation filtering system includes a second circulation pipeline and a purified water tank, the first end and the second end of the second circulation pipeline are both connected to the arc-shaped water tank, the purified water tank is connected to the second circulation pipeline, and the first end and the second end of the second circulation pipeline are respectively provided with a water intake pump and a water delivery pump; The first cloth guide roller comprises a roller body, the roller body has a water channel and a plurality of cleaning holes parallel to its axis, the plurality of cleaning holes are distributed on the surface of the roller body and are connected to the water channel, the water channel is connected to the second end of the second circulation pipeline, a backflow pipeline is provided between the first end and the second end of the second circulation pipeline, a water intake valve is provided on the second circulation pipeline between the water intake pump and the purified water tank, the first end of the backflow pipeline is connected to the second circulation pipeline between the water intake pump and the water intake valve, and the second end of the backflow pipeline is connected to the second circulation pipeline on the water outlet side of the water delivery pump; The roller body is a hollow roller, a closed column is coaxially arranged in the roller body, both ends of the closed column are fixedly connected to the water tank, the roller body can be rotatably mounted on the arc-shaped water tank and rotatably cooperate with the closed column, a plurality of strip grooves are arranged on the closed column, the plurality of strip grooves and the inner wall of the roller body form the water channel, and a water delivery channel connecting the strip groove and the second circulation pipeline is opened on the closed column; Each closed column is provided with at least two strip grooves, the positions of the two strip grooves correspond to the positions where the corresponding rollers and fabrics are about to contact and separate, and the notch width of the strip grooves is not less than the distance between two adjacent rows of cleaning channels.

2. The water washing device according to claim 1, characterized in that: The ultrasonic vibrator is detachably mounted on the strip plate. The ultrasonic vibrator is detachably mounted on the strip plate through a vibration plate. Two rows of slide grooves are arranged opposite to each other on the strip plate. The two ends of the vibration plate are inserted into the corresponding two slide grooves, and the vibration plate is bonded to the strip plate by an adhesive.

3. The water washing device according to claim 1, characterized in that: A power roller is respectively provided at the cloth inlet and the cloth outlet, and the power roller is externally connected to a driving part.

4. The water washing device according to claim 1, characterized in that: A mechanical seal seat is provided on the arc-shaped closing plate, the roller body is inserted into the mechanical seal seat and rotatably cooperates with the mechanical seal seat, the end of the closing column passes through the roller body and is fixedly connected to the arc-shaped closing plate through a U-shaped frame, the end of the roller body and the end of the closing column are rotatably cooperated through a bearing, the inner ring of the bearing is sleeved and fixed on the closing column, and the inner wall of the roller body is fixedly connected to the outer ring of the bearing.

5. The water washing device according to claim 1, characterized in that: The purified water tank comprises a filter chamber, a flocculation chamber, a decolorization chamber and a water storage chamber which are connected to each other. The filter chamber, the flocculation chamber, the decolorization chamber and the water storage chamber are connected to each other in sequence through pipes. Water pumps are arranged on the pipes. A water supply pipe is externally connected to the water storage chamber.

6. A water-saving washing process for knitted fabrics, using the washing equipment according to claim 1, characterized in that: The steps include: S1, threading the fabric, passing the fabric through the fabric inlet of the arc-shaped water tank and out of the fabric outlet, and winding the fabric around a plurality of fabric guide rollers; S2, start the water pump to put water into the arc-shaped water tank, and when the water reaches a predetermined amount, turn off the water pump; S3, the fabric starts to be transported, the ultrasonic vibrator starts, the circulating water pump starts, and the ultrasonic module starts; S4. When the wastewater detection device detects that the water quality in the first circulation pipeline reaches or exceeds the predetermined parameter, the water intake pump and the water delivery pump are started simultaneously; S5. When the wastewater detection device detects that the water quality in the first circulation pipeline is lower than the predetermined parameter, the water intake pump and the water delivery pump are turned off; S6. When the wastewater detection device detects that the water quality in the first circulation pipe reaches or exceeds the predetermined parameter, return to S4.

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