A spraying device for a high-density waterproof layer on the surface of a silk fabric

Abstract

The present invention discloses a spraying device for a high-density waterproof layer on the surface of a silk fabric, belonging to the technical field of waterproof spraying. It includes a spraying box. Both sides of the spraying box are provided with conveying roller groups for conveying the silk fabric. Two inner rollers and an intermediate roller are respectively rotatably arranged inside the spraying box. In the present invention, when the silk fabric passes through the V-shaped path formed between the inner rollers and the intermediate roller in the spraying box, due to a certain bending angle, the stress accumulated inside the fabric is effectively released. During this process, the oblique conveying cooperates with the spraying nozzles obliquely above and obliquely below to eliminate the drawbacks of unilateral spraying, ensure uniform distribution of the spraying liquid, and when passing through for the first time, the fabric fibers are stretched and the fabric gaps are improved, enhancing the spraying density and the quality of the waterproof layer. After the fabric is sprayed, it will continue to move along the other inclined surface of the V shape, that is, when passing through between the inner rollers and the intermediate roller again, secondary stress release will occur, promoting better penetration of the waterproof agent into the fiber gaps.

Description

Technical Field

[0001] The present invention belongs to the technical field of waterproof spraying, and particularly relates to a spraying device for a high-density waterproof layer on the surface of silk fabric. Background Art

[0002] Silk fabric is widely used in high-end clothing, home textiles and other fields due to its excellent properties such as softness, smoothness and breathability. However, there are some problems in the processing and use of silk fabric, especially in surface treatment processes such as spraying a waterproof layer, where many challenges are faced.

[0003] Traditional fabric spraying devices usually use a linear or simple conveying path to transport the fabric. When processing silk fabric, due to the material properties of silk itself, internal stress is likely to accumulate in the fabric during processing. The fibers of silk fabric are relatively slender and have relatively low strength. During the linear conveying process, the tension distribution on the fabric is uneven. Especially in processing operations such as spraying, due to the existence of internal stress in the silk fabric, the spraying process of the waterproof agent will be significantly disturbed. The stress causes changes in the arrangement and tension state of the fabric fibers, resulting in difficulty for the waterproof agent to adhere evenly to the fabric surface during spraying, and uneven spraying occurs. At the same time, the stress causes local deformation of the fabric, forming defects such as wrinkles. These defects will further affect the uniformity of the distribution and the density consistency of the waterproof layer on the fabric surface, thereby reducing the overall quality and performance of the waterproof layer.

[0004] To avoid the above technical problems, it is indeed necessary to provide a spraying device for a high-density waterproof layer on the surface of silk fabric to overcome the defects in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a spraying device for a high-density waterproof layer on the surface of silk fabric to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A spraying device for a high-density waterproof layer on the surface of silk fabric, including a spraying box. On both sides of the spraying box, there are conveyor roller groups for conveying silk fabric. Inside the spraying box, two inner rollers and an intermediate roller are rotatably arranged respectively. The intermediate roller is located slightly below the middle between the two inner rollers, and the fabric conveying path formed by the intermediate roller and the two inner rollers is in a V shape. The fabric passing between the intermediate roller and the two inner rollers will change its conveying path.

[0007] Inside the spraying box, there are two spraying nozzles for spraying a waterproof layer on the surface of the silk fabric. A liquid storage tank for storing the waterproof agent is installed on the spraying box. One side of each of the two spraying nozzles is connected to the liquid storage tank through a rigid conveying pipe. A conveying pump for providing conveying power is provided on each of the two rigid conveying pipes. The conveying pump pumps out the waterproof agent in the liquid storage tank through power and conveys it to the spraying nozzle through the rigid conveying pipe to spray the surface of the silk fabric passing through. The two spraying nozzles are respectively located obliquely above and obliquely below one side slope of the V-shaped conveying path between the middle roller and the two inner rollers.

[0008] As a preferred embodiment, an arc-shaped processing liquid frame for storing the waterproof agent that has fallen during spraying and having a certain amount of waterproof agent itself is provided inside the spraying box. The middle roller is entirely located inside the arc-shaped processing liquid frame, and the silk fabric conveyed through the middle roller will come into contact with the waterproof agent in the arc-shaped processing liquid frame again for infiltration.

[0009] As a preferred embodiment, a heating rod for heating the waterproof agent inside it is provided inside the arc-shaped processing liquid frame. The heating temperature range of the heating rod for the waterproof agent is from 40°C to 80°C. Liquid outlet side holes for controlling the liquid level of the waterproof agent are provided on both sides of the arc-shaped processing liquid frame.

[0010] As a preferred embodiment, two roller brushes are rotatably provided inside the spraying box and are located inside the arc-shaped processing liquid frame and are used for evenly wiping the fabric passing below the middle roller.

[0011] As a preferred embodiment, gears are respectively provided at the rotation points of the two roller brushes on the front of the spraying box. The two gears mesh with each other. One of the gears is driven and connected by a motor fixed on the front of the spraying box.

[0012] As a preferred embodiment, the interiors of the two roller brushes are both hollow, and a plurality of side grooves are provided on the surfaces of the two roller brushes.

[0013] As a preferred embodiment, when the two roller brushes rotate, they can stir the waterproof agent in the arc-shaped processing liquid frame through the non-smooth surface features of the side grooves.

[0014] As a preferred embodiment, the interior of the middle roller is hollow, and a plurality of elastic telescopic grooves are provided on the surface of the middle roller. A fixed rod is fixedly connected inside the middle roller, and a plurality of elastic pressing blocks are fixedly arranged outside the fixed rod through a plurality of elastic telescopic rods.

[0015] As a preferred embodiment, the elastic pressing blocks cooperate with the two roller brushes to elastically press the passing fabric. The surfaces of the plurality of elastic pressing blocks slide in the corresponding elastic telescopic grooves.

[0016] As a preferred embodiment, the elastic telescopic rod includes a telescopic cylinder and a telescopic column. The telescopic column slides telescopically on the telescopic cylinder. A spring is arranged inside the telescopic cylinder. A sliding limit block is fixedly arranged at the bottom end of the telescopic column. The sliding limit block is slidably arranged inside the telescopic cylinder, and the sliding limit block is located at the top end of the spring. When the elastic telescopic rod expands and contracts, the telescopic column squeezes the spring inside the telescopic cylinder through the sliding limit block to achieve adaptive expansion and contraction.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In the present invention, when the silk fabric passes through the V-shaped path formed between the inner roller and the middle roller in the spraying box, due to a certain bending angle, the stress accumulated inside the fabric is effectively released. During this process, the oblique feeding cooperates with the spraying nozzles obliquely above and obliquely below to eliminate the disadvantages of unilateral spraying, ensure uniform distribution of the sprayed liquid, and when passing through for the first time, the fabric fibers are stretched and the fabric gaps are improved, enhancing the spraying density and the quality of the waterproof layer. After the fabric is sprayed, it will continue to move along the other inclined surface of the V shape, that is, when passing through between the inner roller and the middle roller again, secondary stress release will occur, promoting the better penetration of the waterproof agent into the fiber gaps, enhancing the durability and anti-wear ability of the waterproof layer, and effectively solving the problems of stress and uneven spraying caused by traditional linear conveying.

[0019] In the present invention, the oblique feeding of the fabric causes the sprayed liquid to naturally accumulate in the arc-shaped processing liquid frame. The heating rod controls the temperature of the waterproof agent in the arc-shaped processing liquid frame at 40°C to 80°C, softens the fibers and enhances the activity. After the fabric comes into contact, the roller brush driven by the motor rotates in the reverse direction to wipe, and the roller brush flips the waterproof agent to achieve full wetting and uniform spraying, improving the spraying quality of the silk fabric.

[0020] In the present invention, the fabric conveying clock drives the middle roller to rotate. The elastic pressing block adaptively presses under the action of the elastic telescopic rod, generating a dynamic acting force to further dissipate the stress, optimizing the fabric fiber gaps, which is more comprehensive and effective than simple roller surface contact, and cooperating with the roller brush to adjust the stress from multiple aspects, so that the fabric maintains stress optimization during processing, enhancing the bonding effect between the waterproof layer and the fabric and the product performance.

[0021] In the present invention, the elastic structure of the middle roller enables it to rotate adaptively under the drive of the fabric, flipping the waterproof agent concentrated on the V-shaped path, and cooperating with the roller brush to enhance the fluidity and activity of the waterproof agent, ensuring its uniform distribution, and enhancing the uniformity and consistency of the waterproof layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 is a schematic diagram of the rear three-dimensional structure of the present invention;

[0024] Figure 3 Schematic diagram of the sectional three-dimensional structure of the present invention;

[0025] Figure 4 Schematic diagram of the partial three-dimensional structure of the present invention;

[0026] Figure 5 Schematic diagram of the partial sectional three-dimensional structure of the present invention;

[0027] Figure 6 Schematic diagram of the three-dimensional structure of the arc-shaped processing liquid frame of the present invention;

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the middle roller of the present invention;

[0029] Figure 8 Schematic diagram of the three-dimensional structure of the middle roller housing of the present invention;

[0030] Figure 9 Schematic diagram of the three-dimensional structure of the fixing rod of the present invention;

[0031] Figure 10 Schematic diagram of the sectional three-dimensional structure of the elastic telescopic rod of the present invention.

[0032] In the figure: 1, spraying box; 2, conveying roller group; 3, inner roller; 4, middle roller; 5, spraying nozzle; 6, liquid storage tank; 7, conveying hard pipe; 8, conveying pump; 9, arc-shaped processing liquid frame; 10, heating rod; 11, roller brush; 12, gear; 13, motor; 14, side groove; 15, elastic telescopic groove; 16, fixing rod; 17, elastic telescopic rod; 171, telescopic cylinder; 172, telescopic column; 173, spring; 174, sliding limit block; 18, elastic pressing block; 19, liquid outlet side hole. Detailed implementation manners

[0033] The present invention will be further described below in conjunction with embodiments.

[0034] The following embodiments are used to illustrate the present invention, but cannot be used to limit the protection scope of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention all belong to the scope required to be protected by the present invention.

[0035] Please refer to Figures 1-10 , the present invention provides a spraying device for a high-density waterproof layer on the surface of silk fabric, including a spraying box 1. Conveying roller groups 2 for conveying silk fabric are arranged on both sides of the spraying box 1. Two inner rollers 3 and a middle roller 4 are rotatably arranged inside the spraying box 1. The middle roller 4 is located slightly below the middle between the two inner rollers 3, and the fabric conveying path formed by the middle roller 4 and the two inner rollers 3 is in a V shape. The fabric passing between the middle roller 4 and the two inner rollers 3 will change its conveying path;

[0036] Inside the spraying box 1, there are two spraying nozzles 5 for spraying a waterproof layer on the surface of the silk fabric. A liquid storage tank 6 for storing the waterproof agent is installed on the spraying box 1. One side of each of the two spraying nozzles 5 is connected to the liquid storage tank 6 through a rigid conveying pipe 7. A conveying pump 8 providing conveying power is arranged on each of the two rigid conveying pipes 7. The conveying pump 8 pumps out the waterproof agent in the liquid storage tank 6 through power and conveys it to the spraying nozzle 5 through the rigid conveying pipe 7 to spray the surface of the silk fabric passing through. The two spraying nozzles 5 are respectively located obliquely above and obliquely below one side slope of the V-shaped conveying path between the middle roller 4 and the two inner rollers 3. When the silk fabric passes through the V-shaped path formed between the inner roller 3 and the middle roller 4 in the spraying box 1, due to a certain bend angle, based on the stress relaxation principle of the material, the stress accumulated inside the fabric is effectively released. In this process, the two spraying nozzles 5 are respectively located obliquely above and obliquely below, and their spraying angles are skillfully matched with the moving direction of the fabric, eliminating the blind spots and uneven thickness problems that are prone to occur in single-sided spraying. Among them, the oblique conveying path also plays a good guiding role for the sprayed liquid. During the oblique conveying process of the sprayed liquid, guided by the path, the free flow caused by gravity is avoided, ensuring the uniformity of the distribution of the sprayed liquid on the fabric. At the same time, when the fabric first passes between the inner roller 3 and the middle roller 4 to release stress, the fabric fibers are stretched, and the uneven phenomenon of fiber gaps that may be caused by stress concentration is improved. This enables the waterproof agent sprayed by the spraying nozzle 5 to fill the fiber gaps more evenly, thereby achieving a more uniform and sufficient spraying density, greatly improving the overall quality and waterproof performance of the waterproof layer. In addition, when the fabric completes the first spraying and continues to move along the other side slope of the V-shaped path, that is, when it passes between the inner roller 3 and the middle roller 4 again, secondary stress release will occur, and the fabric fibers will undergo micro-level adjustment, promoting the better penetration of the waterproof agent into the fiber gaps, and forming a more compact and firm waterproof layer structure after curing, significantly improving the durability and abrasion resistance of the waterproof layer.

[0037] As Figure 4 shown, an arc-shaped processing liquid frame 9 for storing the waterproof agent that has fallen during spraying and having a certain amount of waterproof agent itself is arranged inside the spraying box 1. The middle roller 4 is entirely located inside the arc-shaped processing liquid frame 9, and the silk fabric conveyed through the middle roller 4 will come into contact with the waterproof agent in the arc-shaped processing liquid frame 9 again for infiltration.

[0038] As Figure 4 shown, a heating rod 10 capable of heating the waterproof agent inside it is arranged inside the arc-shaped processing liquid frame 9. The heating temperature range of the heating rod 10 for the waterproof agent is 40°C to 80°C. Liquid outlet side holes 19 for controlling the liquid level of the waterproof agent are arranged on both sides of the arc-shaped processing liquid frame 9.

[0039] As Figure 4As shown, two roller brushes 11 are rotatably arranged inside the spraying box 1 and are located inside the arc-shaped processing liquid frame 9 and are used for evenly wiping the fabric passing under the middle roller 4.

[0040] As Figure 1 and Figure 4 shown, at the rotating parts of the two roller brushes 11 on the front of the spraying box 1, gears 12 are respectively arranged, and the two gears 12 are meshed with each other. One of the gears 12 is driven and connected by a motor 13 fixed on the front of the spraying box 1. Due to the good diversion effect of the oblique conveying path on the sprayed liquid, the sprayed liquid naturally accumulates in the arc-shaped processing liquid frame 9. The heating rod 10 just right controls the temperature of the waterproof agent at 40°C to 80°C. This temperature range can not only effectively soften the silk fibers, reduce the internal stress, but also enhance the activity of the waterproof agent, making it easier to combine with the fabric. When the fabric passes through the middle roller 4 and has a shallow contact with the waterproof agent in the arc-shaped processing liquid frame 9, it enters the fine processing stage dominated by the two roller brushes 11. The motor 13 drives the two roller brushes 11 to rotate in opposite directions through the meshed gears 12, and evenly wipes the soaked fabric in all directions. This mechanical friction not only helps to further release the internal stress of the fabric, but also promotes the uniform distribution of the waterproof agent on the fabric surface. The roller brushes 11 fully stir and turn the waterproof agent in the arc-shaped processing liquid frame 9 during the rotation process, which makes the waterproof agent continuously contact the fabric, so that in addition to waterproof spraying, a full and uniform wetting effect can also be achieved. In summary, this further makes the waterproof agent penetrate more fully and improves the quality of silk fabric spraying.

[0041] As Figure 5 shown, the interiors of the two roller brushes 11 are all hollow, and a plurality of side grooves 14 are formed on the surfaces of the two roller brushes 11.

[0042] As Figure 4 and Figure 5 shown, when the two roller brushes 11 rotate, they can stir and turn the waterproof agent in the arc-shaped processing liquid frame 9 through the non-smooth surface features of the side grooves 14.

[0043] As Figure 7 and Figure 8 shown, the interior of the middle roller 4 is hollow, and a plurality of elastic telescopic grooves 15 are formed on the surface of the middle roller 4. A fixing rod 16 is fixedly connected inside the middle roller 4, and a plurality of elastic pressing blocks 18 are fixedly arranged on the outside of the fixing rod 16 through a plurality of elastic telescopic rods 17.

[0044] As Figure 8 and Figure 9As shown, the elastic pressing block 18 cooperates with two roller brushes 11 to elastically press the fabric passing through. The surfaces of multiple elastic pressing blocks 18 slide in the corresponding elastic telescopic grooves 15. When the fabric is conveyed in the device and passes through the middle roller 4, it will drive the middle roller 4 to rotate. At this time, the elastic pressing block 18 in contact with the fabric at the bottom, under the action of the elastic telescopic rod 17, performs adaptive elastic pressing according to the actual situation of the fabric. Under the action of the elastic pressing block 18, the fabric fibers are subjected to periodic and continuously changing extrusion forces and frictional forces, so that the stress accumulated during the original processing gradually dissipates under this dynamic acting force. Compared with simple roller surface contact, this elastic pressing method can act on all parts of the fabric more comprehensively, ensuring the uniformity of stress release. The gaps between the fabric fibers are continuously adjusted and optimized, becoming more uniform and tiny, making the attachment of the waterproof agent on the fabric tighter and more uniform. Coupled with the elastic pressing of the two roller brushes 11 on the fabric passing through, the stress of the fabric is adjusted from multiple angles. The synergistic effect of the roller brush 11 and the elastic pressing block 18 enables the fabric to always be in a state of stress optimization during the processes of being wetted and sprayed. This not only helps to improve the stability of the fabric in the subsequent processing, but also ensures that the combination between the waterproof layer and the fabric is tighter and more uniform, greatly improving the spraying quality of the high-density waterproof layer on the surface of the silk fabric and the overall performance of the product. In addition, relying on the elastic telescopic rod 17 inside and the elastic pressing block 18 outside, when the fabric drives the middle roller 4 to rotate, the middle roller 4 realizes adaptive elastic pressing rotation. When the fabric passes through the middle roller 4 along the V-shaped conveying path, this rotation method of the elastic pressing block 18 can effectively turn over the waterproof agent accumulated on the V-shaped conveying path, making dynamic contact with the waterproof agent, so that the waterproof agent is no longer in a relatively static state, but forms local flow and tumbling. At the same time, in cooperation with the side grooves 14 on the surface of the roller brush 11 to strongly stir the waterproof agent in the arc-shaped processing liquid frame 9, the fluidity and activity of the waterproof agent are further enhanced. This synergistic effect first ensures that the distribution of the waterproof agent around the fabric is more uniform, effectively improving the overall uniformity and consistency of the waterproof layer.

[0045] As Figure 10 shown, the elastic telescopic rod 17 includes a telescopic cylinder 171 and a telescopic column 172. The telescopic column 172 slides telescopically on the telescopic cylinder 171. A spring 173 is arranged inside the telescopic cylinder 171. A sliding limit block 174 is fixedly arranged at the bottom end of the telescopic column 172. The sliding limit block 174 is slidably arranged in the telescopic cylinder 171, and the sliding limit block 174 is located at the top end of the spring 173. When the elastic telescopic rod 17 expands and contracts, the telescopic column 172 squeezes the spring 173 inside the telescopic cylinder 171 through the sliding limit block 174 to realize adaptive expansion and contraction.

[0046] Working principle and usage process of the present invention: First, turn on the device. The conveying roller group 2 drives the fabric to enter the spraying box 1 at a constant speed. After the fabric enters the spraying box 1, it is conveyed along the V-shaped path formed by two inner rollers 3 and the middle roller 4, enabling the fabric to achieve preliminary stress release. During this process, the elastic pressing block 18 of the middle roller 4 is pressed against by the elastic force. Under the action of the elastic telescopic rod 17, it makes an adaptive elastic pressing on the fabric according to the actual situation of the fabric. When the fabric passes through the middle roller 4, it will drive the middle roller 4 to rotate. The contact between the elastic pressing block 18 and the fabric not only helps to release the internal stress of the fabric, but also flips the waterproof agent accumulated on the V-shaped conveying path. At the same time, the waterproof agent in the liquid storage tank 6 is conveyed to the spraying nozzle 5 through the conveying hard pipe 7 under the action of the conveying pump 8. The two spraying nozzles 5 respectively spray the fabric being conveyed from the upper and lower oblique sides of one side of the V-shaped path. In the arc-shaped processing liquid frame 9, the heating rod 10 heats the waterproof agent to a suitable temperature of 40 to 80 degrees Celsius, which helps to soften the silk fabric, reduce internal stress, and enhance the activity of the waterproof agent at the same time. When the fabric passes through the middle roller 4, it will have a relatively shallow contact with the waterproof agent in the arc-shaped processing liquid frame 9, making the fabric preliminarily wet. Among them, the motor 13 drives one of the gears 12 to rotate, and through the meshing of the gears 12, the two roller brushes 11 rotate at high speed in the arc-shaped processing liquid frame 9 in opposite directions. The side grooves 14 on the surface of the roller brushes 11 stir the waterproof agent, further enhancing the fluidity and activity of the waterproof agent, making the infiltration of the waterproof agent on the fabric more sufficient. During the rotation of the roller brushes 11, they evenly wipe the fabric passing under the middle roller 4, cooperating with the elastic pressing of the elastic pressing block 18 on the fabric, further releasing the fabric stress, and ensuring that the waterproof agent is evenly distributed on the fabric surface, improving the uniformity and adhesion of the waterproof layer. During the entire spraying process, the arc-shaped processing liquid frame 9 can discharge liquid through the liquid discharge side holes 19 on both sides to control the level of the waterproof agent to achieve the best processing effect. When the fabric completes the processing process in the spraying box 1, it is sent out by the conveying roller group 2 on the other side, completing the spraying operation of the high-density waterproof layer on the surface of the silk fabric.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for spraying a high-density waterproof layer on the surface of a silk fabric, comprising a spray box (1), wherein both sides of the spray box (1) are provided with a conveying roller group (2) for conveying the silk fabric, and characterized in that: Two inner rollers (3) and an intermediate roller (4) are rotatably arranged inside the spray box (1), the intermediate roller (4) is located slightly below between the two inner rollers (3), and the fabric conveying path formed by the intermediate roller (4) and the two inner rollers (3) is V-shaped, and the fabric passing between the intermediate roller (4) and the two inner rollers (3) will change its conveying path; The spray box (1) is provided with two spray nozzles (5) for spraying a waterproof layer on the surface of the silk fabric. The spray box (1) is provided with a liquid storage tank (6) for storing a waterproof agent. One side of the two spray nozzles (5) is connected to the liquid storage tank (6) through a delivery hard pipe (7). The two delivery hard pipes (7) are provided with a delivery pump (8) for providing delivery power. The delivery pump (8) uses power to extract the waterproof agent in the liquid storage tank (6) and delivers it to the spray nozzle (5) through the delivery hard pipe (7) to spray the surface of the silk fabric delivered. The two spray nozzles (5) are respectively located obliquely above and obliquely below the inclined surface of one side of the V-shaped conveying path on the middle roller (4) and the two inner rollers (3); The interior of the intermediate roller (4) is hollowed out, and a plurality of elastic expansion and contraction grooves (15) are provided on the surface of the intermediate roller (4); a fixing rod (16) is fixedly connected to the interior of the intermediate roller (4), and a plurality of elastic pressure blocks (18) are fixedly provided on the exterior of the fixing rod (16) via a plurality of elastic expansion and contraction rods (17); The elastic pressure block (18) cooperates with two roller brushes (11) to elastically press the warp conveying fabric, and the surfaces of the plurality of elastic pressure blocks (18) slide in the corresponding elastic expansion grooves (15); The elastic telescopic rod (17) comprises a telescopic tube (171) and a telescopic column (172); the telescopic column (172) is slidably telescopic on the telescopic tube (171); a spring (173) is arranged inside the telescopic tube (171); a sliding limit block (174) is fixedly arranged at the bottom end of the telescopic column (172); the sliding limit block (174) is slidably arranged inside the telescopic tube (171), and the sliding limit block (174) is located at the top end of the spring (173); when the elastic telescopic rod (17) is extended or retracted, the telescopic column (172) squeezes the spring (173) inside the telescopic tube (171) through the sliding limit block (174), thereby achieving adaptive extension and retraction, releasing the stress of the silk fabric, and optimizing the fiber gap.

2. The high-density waterproof layer spraying device for silk fabric surface according to claim 1 is characterized by: The spray box (1) is provided with an arc-shaped processing liquid frame (9) for storing the waterproofing agent sprayed and containing a certain amount of the waterproofing agent. The intermediate roller (4) is entirely located in the arc-shaped processing liquid frame (9), and the silk fabric transported by the intermediate roller (4) will be soaked and contacted with the waterproofing agent in the arc-shaped processing liquid frame (9) again.

3. The high-density waterproof layer spraying device for silk fabric surface according to claim 2 is characterized by: The arc-shaped machining liquid frame (9) is provided with a heating rod (10) capable of heating the waterproofing agent therein, the heating rod (10) heating the waterproofing agent to a temperature range of 40° C. to 80° C., and both sides of the arc-shaped machining liquid frame (9) are provided with liquid outlet side holes (19) capable of controlling the liquid level of the waterproofing agent.

4. The high-density waterproof layer spraying device for silk fabric surface according to claim 2 is characterized by: Two roller brushes (11) are rotatably arranged in the spray box (1) and are located in an arc-shaped processing liquid frame (9) and are used to evenly wipe the fabric passing under the middle roller (4).

5. The high-density waterproof layer spraying device for the surface of silk fabric according to claim 4 is characterized by: The two roller brushes (11) are respectively provided with gears (12) at the rotational positions on the front side of the spray box (1); the two gears (12) are meshed with each other, and one of the gears (12) is driven and connected to a motor (13) fixed on the front side of the spray box (1).

6. The high-density waterproof layer spraying device for the surface of silk fabric according to claim 4, characterized in that: The interiors of the two roller brushes (11) are both hollow, and the surfaces of the two roller brushes (11) are both provided with a plurality of side grooves (14).

7. The high-density waterproof layer spraying device for the surface of silk fabric according to claim 6, characterized in that: When the two roller brushes (11) rotate, they can stir the waterproofing agent in the arc-shaped processing liquid frame (9) through the non-smooth surface features of the side grooves (14), thereby ensuring that the waterproofing agent is in full and uniform contact with the silk fabric.

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