Water-saving intelligent control jet finishing machine with redundant coverage shower array and finishing method

Abstract

The application discloses a water-saving intelligent control jet finishing machine with redundant coverage shower nozzle array, which comprises a cloth feeding device, a jet finishing device, a guide belt device, a drying and curing device and a winding device arranged in sequence along the fabric feeding direction; the jet finishing device comprises a machine body, a controller, a finishing liquid supply system and a jet finishing module; the jet finishing module comprises a nozzle group, a positioning frame and a supporting and moving mechanism; the nozzle group is composed of a plurality of nozzles arranged in high density along the width direction of the fabric, and the number of nozzles arranged in each meter of effective width is not less than 28; the action areas formed by adjacent nozzles are highly overlapped on the surface of the fabric to form jet coverage redundancy and ensure the consistency of finishing liquid application; the application has the characteristics of water saving, low liquid supply, convenient concentration switching and good finishing consistency.

Description

Technical Field

[0001] This invention relates to the field of textile finishing equipment technology, specifically to a water-saving intelligent control spray finishing machine with a redundant coverage nozzle array. Background Technology

[0002] Textile finishing typically involves applying finishing solutions to the surface or interior of a fabric, followed by drying, baking, or curing to fix the finishing components onto the fabric, thereby endowing the fabric with functions such as water repellency, stain resistance, antibacterial properties, flame retardancy, antistatic properties, UV protection, conductivity, softness, wrinkle-free properties, or temperature regulation.

[0003] Existing finishing processes mainly include padding, impregnation, spraying, scraping, and offline spraying. While padding and impregnation are widely used, they typically require large liquid-holding spaces, resulting in significant consumption of the finishing solution and its water content. Residual liquid loss is also common when changing fabric types, switching formulations, or during machine downtime for cleaning. Furthermore, the control of the amount of finishing solution applied in these methods heavily relies on the fabric's absorbency, the state of the fabric after padding, and operating conditions, making it difficult to achieve low-volume and precise application. Although spraying, scraping, and offline spraying reduce liquid holding capacity to some extent, they still have shortcomings in terms of continuous production, application uniformity, and process stability.

[0004] As textile finishing processes develop towards higher added value, multifunctional composites, and small-batch production of various varieties, the requirements for application precision, utilization efficiency, and continuous production stability are constantly increasing. Existing spray finishing equipment's spray coverage on the fabric surface is typically affected by the number of nozzles, nozzle density, and the continuity of the spraying area. When the number of nozzles is insufficient, gaps or insufficient overlap between adjacent spraying areas can easily exist, causing localized spray fluctuations to be directly reflected on the fabric surface, thus affecting the consistency and repeatability of the finishing effect.

[0005] In addition, during the functional effect verification process of different finishing solution concentrations, it is usually necessary to prepare multiple finishing solution samples of different concentrations in advance. This not only involves a large workload of solution preparation, but also easily leads to sample waste during concentration switching, resulting in low experimental efficiency and making it difficult to quickly screen the appropriate concentration range that meets the functional requirements. Summary of the Invention

[0006] In practice, the inventors discovered that, to address the aforementioned problems, it is necessary to introduce an engineered spraying architecture for water-saving finishing and rapid testing. This involves employing a high-density nozzle array on the equipment side, creating highly overlapping redundant coverage between adjacent nozzle spray areas to reduce the impact of localized spraying fluctuations on the finishing effect. Simultaneously, it includes independent supply and online mixing and concentration adjustment units for high-concentration finishing solution mother liquor and diluent, enabling rapid switching of the finishing solution concentration according to test requirements and linkage with fabric operating parameters to adjust the spraying output. This achieves on-demand quantitative application and improved finishing consistency while maintaining low liquid consumption, water conservation, and ease of maintenance, and also enhances the efficiency of functional finishing concentration screening and process verification. Therefore, it is necessary to provide a water-saving intelligent control spray finishing machine suitable for small-batch, multi-variety functional finishing testing and production.

[0007] The technical problem to be solved by the present invention is to provide a water-saving intelligent spray finishing machine with redundant coverage nozzle array to achieve low-volume, continuous, uniform and controllable application of finishing liquid on the fabric surface, in view of the problems existing in the existing finishing equipment, such as large consumption of finishing liquid and water, difficulty in accurately controlling the amount applied per unit area, insufficient uniformity of application on the fabric surface, and inconvenience of switching and screening finishing liquid concentration.

[0008] Furthermore, the present invention also aims to solve the following technical problems: to achieve stable spray application of finishing liquid under low liquid supply conditions, improve the continuity of spray coverage and finishing consistency, reduce the consumption of finishing liquid and water during the finishing process, achieve rapid adjustment of finishing liquid concentration and screening of functional effects, and improve the distribution effect of finishing liquid on the fabric surface under low liquid supply conditions.

[0009] The purpose of this invention is to provide a water-saving intelligent spray finishing machine with a redundant coverage nozzle array. By integrating a high-density nozzle array, low-feed spray application, on-demand concentration of mother liquor and diluent, and drying and curing into the same device, the finishing liquid can be applied to the fabric surface continuously, water-savingly, uniformly and controllably.

[0010] Another objective of this invention is to provide a spray finishing device suitable for rapid switching and verification of different finishing solution concentrations, so as to reduce sample solution consumption, shorten solution preparation and process switching time, and improve the efficiency of finishing formula development, concentration window screening and process verification.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A water-saving intelligent control spray finishing machine with redundant coverage nozzle array includes a fabric feeding device, a spray finishing device, a guide belt device, a drying and curing device, and a winding device arranged sequentially along the fabric feeding direction.

[0013] The spray finishing device includes a body, a controller, a finishing liquid supply system, and a spray finishing module;

[0014] The spray finishing module includes a nozzle assembly, a positioning frame, and a support and movement mechanism;

[0015] The nozzle group consists of multiple nozzles arranged in a high density along the fabric width direction. The number of nozzles set within each meter of effective width is not less than 28, preferably 28 to 36. The action areas formed by adjacent nozzles highly overlap on the fabric surface to form redundant spray coverage and ensure the consistency of finishing liquid application.

[0016] The controller is used to control the fabric conveying speed, nozzle group spraying parameters, finishing liquid mixing concentration, and drying and curing parameters.

[0017] The finishing liquid supply system includes a high-concentration finishing liquid mother liquor supply branch, a diluent supply branch, and a mixing unit. The high-concentration finishing liquid mother liquor supply branch is used to supply high-concentration finishing liquid mother liquor, and the diluent supply branch is used to supply water or other diluents. The high-concentration finishing liquid mother liquor supply branch and the diluent supply branch are connected at the mixing unit to mix and form a finishing liquid of the target concentration, which is then delivered to the nozzle assembly.

[0018] The controller controls the ratio of the flow rate of the high-concentration finishing solution mother liquor to the flow rate of the diluent according to the preset target concentration, thereby achieving rapid adjustment of the finishing solution concentration;

[0019] The target application rate of the finishing solution per unit area is 5 g / m² to 50 g / m², in order to reduce the consumption of finishing solution and water during the finishing process.

[0020] Preferably, the actual amount A applied per unit area on the fabric surface is calculated using the following formula:

[0021] A = Q / (v × B)

[0022] Where A is the actual amount applied per unit area on the fabric surface, Q is the total jet flow rate of the nozzle group, v is the fabric running speed, and B is the effective width of the fabric.

[0023] Preferably, the concentration C of the finishing solution after mixing is determined by the following formula:

[0024] C = (Q) m ×C m ) / (Q m +Q w )

[0025] Where C is the concentration of the finishing solution after mixing, and Q m For the high-concentration finishing solution mother liquor flow rate, C m Q represents the concentration of the mother liquor for high-concentration finishing solution. w This represents the flow rate of the diluent.

[0026] Preferably, the supporting moving mechanism includes a lifting drive assembly and a translation drive assembly, used to drive the nozzle assembly to switch between the working area and the cleaning area, and to adjust the relative height of the nozzle assembly and the fabric surface.

[0027] Preferably, the spray finishing module is configured with at least two sets that operate alternately, one set for spray finishing and the other set for cleaning, liquid replacement or maintenance.

[0028] Preferably, the distance between the nozzle assembly and the fabric surface is 10 mm to 50 mm; the fabric running speed is 1 m / min to 20 m / min; the single drop volume of the nozzle is 20 pL to 200 pL; and the drying and curing temperature is 100 ℃ to 190 ℃.

[0029] This invention also provides a cleaning method for a water-saving intelligent control spray cleaning machine with a redundant coverage nozzle array, comprising the following steps:

[0030] S1. The fabric is continuously conveyed to the spray finishing area of ​​the spray finishing device via the feeding device.

[0031] S2. The high-concentration finishing liquid mother liquor supply branch and the diluent supply branch are mixed in the mixing unit according to a preset ratio to form a finishing liquid of the target concentration, and then delivered to the nozzle assembly.

[0032] S3. The finishing liquid of the target concentration is sprayed onto the fabric surface by a high-density array of nozzles, wherein the number of nozzles set within each meter of effective width is not less than 28, and the action areas formed by adjacent nozzles overlap highly on the fabric surface.

[0033] S4. Adjust the spraying parameters according to the target unit area application amount, the total spray flow rate of the nozzle group, the fabric running speed, and the effective width of the fabric.

[0034] S5. After the fabric is dried and cured by the drying and curing device, it is wound up by the winding package.

[0035] Compared with the prior art, the present invention has at least the following beneficial effects:

[0036] 1) By using a high-density nozzle array with no less than 28 nozzles per meter of effective width and a high degree of overlap between the spray areas of adjacent nozzles, a spray coverage redundancy is formed, which can reduce the impact of local spray fluctuations on the finishing effect and improve the consistency and stability of the finishing liquid application.

[0037] 2) By using a low-feed-liquid-spray application method, the amount of finishing liquid and water used is reduced, resulting in a better water-saving effect;

[0038] 3) By using the mother liquor-diluent concentration adjustment method, different concentrations of finishing solutions can be quickly obtained without frequent re-preparation, reducing sample waste; Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the spray finishing device of the present invention;

[0041] Figure 3 This is a schematic diagram of the mother liquor-diluent concentration supply logic of the present invention;

[0042] Figure label:

[0043] 1-Fabric feeding device;

[0044] 2-Spray finishing device; 21-Main body; 22-Controller; 23-Finishing liquid supply system; 231-High-concentration finishing liquid mother liquor tank; 232-Dilution liquid tank; 233-High-concentration finishing liquid mother liquor supply branch; 234-Dilution liquid supply branch; 235-Mixing unit; 236-Concentration control unit; 24-Cleaning liquid tank; 25-Waste liquid tank; 26-Spray finishing module; 261-Nozzle assembly; 262-Positioning frame; 263-Supporting moving mechanism;

[0045] 3-Belt guiding device;

[0046] 4-Drying and curing device;

[0047] 5-Rewinding device;

[0048] 6- Fabric. Detailed Implementation

[0049] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0050] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0051] As attached Figure 1As shown in the figure, this embodiment of the invention proposes a water-saving intelligent spray finishing machine with a redundant coverage nozzle array for functional finishing of fabric 6. It includes a feeding device 1, a spray finishing device 2, a guide belt device 3, a drying and curing device 4, and a winding device 5 arranged sequentially along the feeding direction of fabric 6. The feeding device 1 is used to transport the fabric 6 to be finished to the station of the spray finishing device 2; the spray finishing device 2 is used to spray the prepared finishing liquid onto the surface of fabric 6; the guide belt device 3 is used to support and transport the spray-finished fabric 6; the drying and curing device 4 is used to dry and cure the finished fabric 6; and the winding device 5 is used to wind up the treated fabric 6.

[0052] In the embodiments of the present invention, as shown in the appendix Figure 2 As shown, the spray finishing device 2 includes a body 21, a controller 22, a finishing liquid supply system 23, a cleaning liquid tank 24, a waste liquid tank 25, and a spray finishing module 26; the body 21 is provided with at least two spray finishing modules 26, at least one finishing liquid supply system 23, at least one cleaning liquid tank 24, and at least one waste liquid tank 25; the body 21 is provided with a working area and a cleaning area; the spray finishing module 26 is installed on the body 21 and can move between the working area and the cleaning area.

[0053] The spray finishing module 26 includes a nozzle assembly 261, a positioning frame 262, and a support and movement mechanism 263. The nozzle assembly 261 is mounted on the positioning frame 262, and the positioning frame 262 is mounted on the support and movement mechanism 263. The support and movement mechanism 263 includes a lifting drive assembly for raising and lowering the positioning frame 262 in the working area and a translation drive assembly for laterally moving the positioning frame 262 between the working area and the cleaning area. The support and movement mechanism 263 is used to drive the nozzle assembly 261 to switch between the working area and the cleaning area and to adjust the relative height of the nozzle assembly 261 and the surface of the fabric 6.

[0054] In this embodiment of the invention, the nozzle assembly 261 consists of a plurality of nozzles arranged at high density along the fabric width direction. The number of nozzles per meter of effective width is no less than 28, preferably 28 to 36, and more preferably 30 to 32. The action areas formed by adjacent nozzles highly overlap on the fabric surface, thus creating redundant spray coverage. This redundant coverage structure reduces the impact of local spray fluctuations, individual nozzle differences, or instantaneous liquid supply fluctuations on the fabric surface finishing effect, thereby improving the consistency and stability of the finishing liquid application.

[0055] In this embodiment of the invention, the nozzle assembly 261 is connected to the finishing liquid supply system 23 and the cleaning liquid tank 24 via a liquid supply pipeline. Corresponding finishing liquid valves and cleaning valves can be installed on the liquid supply pipeline to realize the supply of finishing liquid, the supply of cleaning liquid, and the switching of liquid paths. Waste liquid generated during the cleaning process is directed into the waste liquid tank 25.

[0056] As attached Figure 2 and 3 As shown, the finishing liquid supply system 23 includes a high-concentration finishing liquid mother liquor tank 231, a diluent tank 232, a mother liquor supply branch 233, a diluent supply branch 234, a mixing unit 235, and a concentration control unit 236. The mother liquor supply branch 233 is connected to the high-concentration finishing liquid mother liquor tank 231, and the diluent supply branch 234 is connected to the diluent tank 232. The mother liquor supply branch 233 and the diluent supply branch 234 converge at the mixing unit 235, and the mixed finishing liquid is delivered to the nozzle assembly 261. The controller 22 is used to control the flow ratio of the mother liquor and the diluent to obtain a finishing liquid of the target concentration.

[0057] The concentration C of the finishing solution after mixing is determined by the following formula:

[0058] C = (Q) m ×C m ) / (Q m +Q w )

[0059] Where C is the concentration of the finishing solution after mixing, and Q m For the high-concentration finishing solution mother liquor flow rate, C m Q represents the concentration of the mother liquor for high-concentration finishing solution. w This is the diluent flow rate. Adjust Q... m and Q w The ratio allows for the rapid preparation of different concentrations of finishing solutions without frequent reconstitution, which can be used for functional finishing concentration screening and process validation.

[0060] In this embodiment of the invention, the actual amount of material applied per unit area A on the surface of fabric 6 is determined by the following formula:

[0061] A = Q / (v × B)

[0062] Where A is the actual amount applied per unit area on the fabric surface, Q is the total jet flow rate of the nozzle group, v is the fabric running speed, and B is the effective fabric width. The controller 22 adjusts one or more of the following based on the target amount applied per unit area, combined with the total jet flow rate of the nozzle group, the fabric running speed, and the effective fabric width: jet frequency, pulse width, duty cycle, liquid supply pressure, and fabric conveying speed, thereby achieving low-volume, continuous, and stable application.

[0063] The working process of this embodiment of the invention can be referred to as follows: First, the fabric to be treated is fed into the spray finishing device 2 by the feeding device 1; then, high-concentration finishing liquid mother liquor is added to the high-concentration finishing liquid mother liquor tank 231, and water is added to the dilution liquid tank 232; the controller 22 sets the target concentration and the target unit area application amount, controls the mother liquor supply branch 233 and the dilution liquid supply branch 234 to form the target concentration finishing liquid in the mixing unit 235, and delivers it to the nozzle group 261; then, the nozzle group 261 sprays the finishing liquid onto the surface of the fabric in operation; the spray-treated fabric 6 is conveyed to the drying and curing device 4 by the guide belt device 3 for drying and curing, and finally wound up by the winding device 5.

[0064] Taking the two sets of spray finishing modules 26 in this invention as an example, since the machine body 21 is provided with a working area and a cleaning area, during actual operation, one set of spray finishing modules 26 performs spray finishing work, while the other set of spray finishing modules 26 enters the cleaning area under the control of the controller 22 to perform cleaning and liquid replacement work. Specifically, when the first set of spray finishing modules 26 is working, the support moving mechanism 263 moves the nozzle group 261 to the spraying position in the working area and lowers it to a certain height for spraying; the second set of spray finishing modules 26 is located in the cleaning area for cleaning and liquid replacement. When the first set of spray finishing modules 26 has finished spraying and needs to be cleaned and the finishing liquid replaced, the support moving mechanism 263 first raises the nozzle group 261 to a certain height, and then moves it laterally to the cleaning area for cleaning and liquid replacement; at the same time, the second set of spray finishing modules 26 moves to the working area to continue performing spray finishing.

[0065] The cleaning and fluid replacement process described above can be referenced as follows: First, drain the residual finishing fluid from the spray finishing module 26 to be cleaned; then, open the cleaning valve from the cleaning fluid tank 24 to the spray finishing module 26 to clean the nozzle assembly 261 and the fluid path; after cleaning, close the cleaning valve, then open the finishing fluid passage to introduce the newly prepared finishing fluid into the spray finishing module 26, preparing for the next round of testing or spray finishing under the next concentration condition. This method allows for relatively quick switching between different finishing fluid systems or concentrations.

[0066] In the above embodiments, the supporting moving mechanism 263 mainly consists of a motor driver with lifting and translation functions, that is, both the lifting unit and the translation unit use motor drivers. Casters can also be installed at the bottom of the body 21 to facilitate the overall movement of the equipment.

[0067] In the above embodiments, the nozzles in the nozzle assembly 261 are preferably industrial nozzles with a single drop volume of 20 pL to 200 pL, and more preferably nozzles with a single drop volume of 40 pL to 80 pL. Because the nozzle assembly 261 is arranged in a high-density array, and the action areas of adjacent nozzles highly overlap to form redundant coverage, good coverage continuity and uniformity can still be achieved under conditions of low application volume per unit area.

[0068] In the above embodiments, the distance between the nozzle assembly 261 and the surface of the fabric 6 is preferably 10 mm to 50 mm, more preferably 20 mm to 30 mm; the fabric running speed is preferably 1 m / min to 20 m / min; the target unit area application amount of the finishing liquid is preferably 5 g / m² to 50 g / m²; and the drying and curing temperature is preferably 100 ℃ to 190 ℃.

[0069] This invention is particularly suitable for applications such as finishing solution concentration screening, process validation, and formulation screening. By mixing high-concentration mother liquor with water as needed to adjust the concentration, the material waste caused by pre-preparing multiple concentration sample solutions can be reduced; and the redundant coverage nozzle array structure with no less than 28 nozzles per meter of effective width can improve the consistency and stability of finishing solution application.

[0070] The following uses antibacterial finishing as an example to illustrate the application of the present invention: a polyester-cotton woven fabric with a width of 1000 mm is selected as the test fabric 6. The nozzle group 261 is configured with 30 nozzles per meter of effective width. The liquid output of a single nozzle is 60 pL. The distance between the nozzle group 261 and the surface of the fabric 6 is set to 25 mm. The fabric running speed is set to 6 m / min. The target unit area application amount is set to 18 g / m².

[0071] A 20% (w / w) concentration of silicon quaternary ammonium salt antibacterial finishing solution mother liquor is added to the high-concentration finishing solution mother liquor tank 231, and deionized water is added to the diluent tank 232. The controller 22 controls the mother liquor flow rate Q. m With diluent flow rate Q w The mixing unit 235 outputs antibacterial finishing solutions with mass fractions of 2%, 4%, and 6%, respectively, which are then sequentially delivered to the spray nozzle assembly 261 for spray finishing. The finished fabric enters the drying and curing device 4, is treated at 140 ℃ for 90 s, and then wound up.

[0072] Fabrics treated under different concentrations were tested for antibacterial properties, and their antibacterial rates and finishing uniformity were compared to screen for suitable finishing solution concentrations that achieve the target antibacterial effect. This embodiment demonstrates that the present invention can achieve rapid switching of finishing solution concentrations and verification of functional effects under low solution volume conditions, and ensures finishing consistency through redundant coverage nozzle arrays.

[0073] The present invention may also be modified in the following ways for the above embodiments:

[0074] 1. In the above embodiments, the spray finishing device 2 includes two sets of spray finishing modules 26; however, the present invention is not limited to this, and three or more sets of spray finishing modules 26 may also be provided to adapt to more finishing liquid systems or more frequent liquid change requirements.

[0075] 2. In the above embodiments, the finishing liquid supply system 23 is provided with a high-concentration finishing liquid mother liquor tank 231 and a diluent tank 232; however, the present invention is not limited to this, and multiple high-concentration finishing liquid mother liquor tanks 231 may also be provided to adapt to the rapid switching of different finishing liquid formulations.

[0076] 3. In the above embodiments, antibacterial finishing is used as a specific example for illustration; however, the present invention is not limited thereto, and is also applicable to functional finishing tests such as water-repellent finishing, antifouling finishing, flame-retardant finishing, antistatic finishing, softening finishing, conductive finishing, and phase change temperature regulation finishing.

[0077] 4. In the above embodiments, the nozzle group 261 is configured with 30 nozzles per meter of effective width; however, the present invention is not limited to this. As long as the number of nozzles set within each meter of effective width is not less than 28, and the spray areas of adjacent nozzles form highly overlapping redundant coverage, the technical effect described in the present invention can be achieved.

[0078] In another embodiment, a method for cleaning a water-saving intelligent control spray cleaning machine with a redundant coverage nozzle array is also provided, comprising the following steps:

[0079] S1. Fabric 6 is continuously conveyed to the spray finishing area of ​​spray finishing device 2 via fabric feeding device 1.

[0080] S2. The high-concentration finishing liquid mother liquor supply branch 233 and the diluent supply branch 234 are mixed in the mixing unit 235 according to a preset ratio to form a finishing liquid of the target concentration, and then transported to the nozzle assembly 261.

[0081] S3. The finishing liquid of the target concentration is sprayed onto the fabric surface by a high-density array of nozzles 261, wherein the number of nozzles set within each meter of effective width is not less than 28, and the action areas formed by adjacent nozzles overlap highly on the fabric surface.

[0082] S4. Adjust the spraying parameters according to the target unit area application amount, the total spray flow rate of nozzle group 261, the fabric running speed, and the effective width of the fabric.

[0083] S5. After the fabric 6 is dried and cured by the drying and curing device 4, it is wound up by the winding device 5.

[0084] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Equivalent substitutions, simple modifications, or other alterations made by those skilled in the art based on the disclosure of the present invention that do not depart from the concept of the present invention should all fall within the scope of protection of the present invention.

Claims

1. A water saving intelligent control jet finishing machine with a redundant coverage shower head array, characterized in that: It includes a fabric feeding device (1), a spray finishing device (2), a guide belt device (3), a drying and curing device (4), and a winding device (5) arranged sequentially along the fabric feeding direction; The spray finishing device (2) includes a body (21), a controller (22), a finishing liquid supply system (23), and a spray finishing module (26). The spray finishing module (26) includes a nozzle assembly (261), a positioning frame (262), and a support and movement mechanism (263). The nozzle group (261) consists of multiple nozzles arranged in a high density along the width direction of the fabric (6). The number of nozzles set within each meter of effective width is not less than 28. The action areas formed by the spraying of adjacent nozzles highly overlap on the surface of the fabric (6) to form a spray coverage redundancy and ensure the consistency of the finishing liquid application. The controller (22) is used to control the fabric (6) conveying speed, the spray parameters of the nozzle group (261), the mixing concentration of the finishing liquid and the drying and curing parameters; The finishing liquid supply system (23) includes a high-concentration finishing liquid mother liquor supply branch (233), a diluent supply branch (234), and a mixing unit (235). The high-concentration finishing liquid mother liquor supply branch (233) and the diluent supply branch (234) are connected at the mixing unit (235) to mix and form a finishing liquid of the target concentration, which is then delivered to the nozzle assembly (261). The target unit area application amount of the finishing liquid for the fabric (6) surface is 5 g / m² to 50 g / m², in order to reduce the consumption of finishing liquid and water during the finishing process.

2. The water conservation smart control jet finishing machine with redundant coverage showerhead array of claim 1, wherein: The number of sprinklers installed within each meter of effective width is 28 to 36.

3. The water conservation smart control jet finishing machine with redundant coverage showerhead array of claim 1, wherein: The overlapping area of ​​the action area formed by adjacent nozzles on the fabric (6) surface accounts for 30% to 90% of the effective spray coverage width of a single nozzle.

4. The water conservation smart control jet finishing machine with redundant coverage showerhead array of claim 1, wherein: The actual amount of material applied per unit area A on the fabric (6) surface is calculated using the following formula: A = Q / (v × B) Where A is the actual amount applied per unit area on the fabric surface, Q is the total jet flow rate of the nozzle group, v is the fabric running speed, and B is the effective width of the fabric.

5. The water conservation smart control jet finishing machine with redundant coverage showerhead array of claim 4, wherein: The controller (22) adjusts one or more of the following based on the relationship between the target unit area applied to the fabric surface and the actual unit area applied to the fabric surface A: the spray frequency, pulse width, duty cycle, liquid supply pressure, and fabric conveying speed.

6. The water conservation management jet finishing machine with redundant coverage showerhead array of claim 1, wherein: The concentration C of the finishing solution after mixing is determined by the following formula: C=(Q m ×C m ) / (Q m +Q w ) Where C is the concentration of the finishing solution after mixing, and Q m For the high-concentration finishing solution mother liquor flow rate, C m Q represents the concentration of the mother liquor for high-concentration finishing solution. w This represents the flow rate of the diluent.

7. The water conservation smart control jet finishing machine with redundant coverage showerhead array of claim 1, wherein: The supporting moving mechanism (263) includes a lifting drive assembly and a translation drive assembly, which are used to drive the nozzle assembly (261) to switch between the working area and the cleaning area in the body (21) and adjust the relative height of the nozzle assembly (261) and the fabric surface; the spray finishing module (26) is set to at least two sets and operates alternately, one set is used for spray finishing and the other set is used for cleaning, liquid replacement or maintenance.

8. The water-saving intelligent control spray finishing machine with redundant coverage nozzle array according to claim 7, characterized in that: The distance between the nozzle assembly (261) and the fabric surface is 10 mm to 50 mm, the fabric running speed is 1 m / min to 20 m / min, the single drop volume of the nozzle is 20 pL to 200 pL, and the drying and curing temperature is 100 ℃ to 190 ℃.

9. The water-saving intelligent control spray finishing machine with redundant coverage nozzle array according to claim 1, characterized in that: Water-saving intelligent control jet finishing machine is used for finishing solution concentration screening, process verification or formula screening.

10. A finishing method of a water-saving intelligent control jet finishing machine with a redundant coverage shower array according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1. The fabric (6) is continuously conveyed to the spray finishing area of ​​the spray finishing device (2) through the fabric feeding device (1); S2. The high-concentration finishing liquid mother liquor supply branch (233) and the diluent supply branch (234) are mixed in the mixing unit (235) according to a preset ratio to form a finishing liquid of the target concentration, and then transported to the nozzle assembly (261). S3. The finishing liquid of the target concentration is sprayed onto the surface of the fabric (6) by a high-density array of nozzles (261), wherein the number of nozzles set within each meter of effective width is not less than 28, and the action areas formed by adjacent nozzles overlap highly on the fabric surface. S4. Adjust the spray parameters according to the target unit area application amount, the total spray flow of the nozzle group (261), the fabric running speed and the effective width of the fabric; S5. After the fabric (6) is dried and cured by the drying and curing device (4), it is wound up by the winding device (5).

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