An apparatus for coating a nonwoven water repellent layer

Abstract

The utility model relates to the technical field of non - woven fabric production device discloses a kind of coating device of non - woven fabric water repellent layer, including fixed bracket and the coating roller of rotation connection in the inside of fixed bracket, the inside of the fixed bracket and the position at the top of coating roller position is also fixed with blanking frame, the bottom of the blanking frame is communicated with blanking port;The left side fixed with fixed plate one in the inside of the fixed bracket, electric telescopic link one is installed in the middle part of one side of fixed plate one, the coating in the blanking frame can be made even from blanking port to coating roller, to ensure the even material sticking of coating roller, more conducive to the even coating of non - woven fabric, and the utilization of this mode to coating is higher, avoid the waste brought by floating, utilize receiving frame one to receive the excess material falling from blanking port, facilitate to recycle excess material, also avoid the splashing when excess material drops and pollute nearby component.

Description

Technical Field

[0001] This utility model relates to the technical field of nonwoven fabric production equipment, specifically to a coating device for a nonwoven fabric water-repellent layer. Background Technology

[0002] Nonwoven water-repellent layer is a structural layer that gives nonwoven fabric waterproof and moisture-proof functions through special processing. It is commonly used in automotive interiors, filter materials, protective clothing fabrics and other fields. During production, a coating device is used to coat the nonwoven fabric with water-repellent material.

[0003] A search revealed a nonwoven fabric water-repellent coating device with publication number CN221580985U, which stated: "It includes a base and a conveying assembly mounted on the base, drying assemblies symmetrically arranged on both sides of the conveying assembly, and a coating cabinet mounted on the base. A coating device is mounted on the base inside the coating cabinet, and a feeding device is located on one side of the coating device. The feeding device is used to feed material to the coating device. The feeding device includes a paint tank mounted on the coating cabinet, and a conveying pipe and a rigid pipe are connected to the paint tank. The bottom end of the conveying pipe is connected to a nozzle for spraying paint onto the coating device. Below the nozzle is a scraper for spreading the paint on the coating device. The scraper has grooves for collecting excess material on the coating device. The coating device is used to coat the nonwoven fabric with paint, allowing the coating roller to adhere to and contact the nonwoven fabric, improving the coating effect and enabling the recovery of excess material scraped off by the scraper, thus avoiding paint waste."

[0004] Through a search of the aforementioned patents, we found that the technical solution still has certain defects in use. When coating the non-woven fabric with water-repellent material, the water-repellent material is sprayed onto the coating roller using a nozzle. When the nozzle sprays the material, it causes the coating to scatter, making it difficult to fully contact the coating roller, resulting in waste of coating and a certain degree of pollution to the device. Furthermore, after the coating work is completed, some coating will remain in the nozzle. Due to gravity, the coating will drip naturally, which will not only waste the coating but also cause splashing when dripping, thus contaminating the nearby structures. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coating device for a non-woven water-repellent layer, comprising a fixed frame and a coating roller rotatably connected inside the fixed frame; a feeding frame is also fixed inside the fixed frame at the top of the coating roller, and the bottom of the feeding frame is connected to a feeding port; a fixed plate is fixed on the left side inside the fixed frame, and an electric telescopic rod is installed in the middle of one side of the fixed plate; the power output shaft of the electric telescopic rod movably passes through the fixed plate and is connected to a receiving assembly slidably connected inside the fixed frame; the receiving assembly includes a movable plate and a receiving frame disposed on the top of the movable plate; the middle of one side of the movable plate is fixed to the power output shaft of the electric telescopic rod; a support plate is fixed inside the receiving frame, and a rubber gasket is glued to the top of the support plate.

[0007] As a further embodiment of this utility model: limit sliders are fixed on both the front and rear sides of the movable plate, and limit grooves are provided on both sides of the inner wall of the fixed frame at positions corresponding to each limit slider, and the limit sliders are slidably connected in the limit grooves.

[0008] As a further embodiment of this utility model: positioning holes are provided at the four corners of the top of the movable plate, and a damping rubber ring is fixedly fitted in each positioning hole. A positioning rod is fixed at the bottom of the receiving frame and at the position corresponding to each positioning hole. The positioning rod is inserted into the damping rubber ring.

[0009] As a further embodiment of this utility model: the bottom of the inner wall of the feeding frame is designed as an inclined structure, the bottom of the inner cavity of the feeding port is a flat opening design, and the top of the rubber pad is higher than the top of the receiving frame.

[0010] As a further embodiment of this utility model: a paint tank is also provided on the front of the fixing frame, a pump body is provided inside the paint tank, and the output port of the pump body is connected to a conveying pipe. The end of the conveying pipe away from the paint tank is bent and connected to the inside of the feeding frame.

[0011] As a further embodiment of this utility model, a cleaning scraper is also fixed at the center of the bottom of the movable plate.

[0012] As a further embodiment of this utility model: a second fixing plate is fixed inside the fixing frame and located to the right of the coating roller. A support block is fixed to the bottom of one side of the second fixing plate. A second receiving frame is provided on the top of the support block. A discharge pipe that passes through the support block is connected to the bottom of the second receiving frame.

[0013] As a further embodiment of this utility model: an electric telescopic rod 2 is installed on the other side of the fixed plate 2. The power output shaft of the electric telescopic rod 2 movably passes through the fixed plate 2 and is fixed with a movable block. A scraper block is fixed on the side of the movable block near the coating roller. A groove is provided on the top of the scraper block. A guide pipe inclined to the receiving frame 2 is connected to the bottom of the groove.

[0014] As a further embodiment of this utility model: two mutually spaced limiting rods are fixed on the side of the movable block near the second fixed plate, and the end of the limiting rod away from the movable block moves through the second fixed plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this application, the designed feeding frame, feeding port and other structures enable the coating material in the feeding frame to flow evenly from the feeding port to the coating roller, thereby ensuring uniform material adhesion to the coating roller, which is more conducive to uniform coating of non-woven fabric. In addition, this method has a higher utilization rate of coating material and avoids waste and pollution of other parts of the device caused by scattering.

[0017] Second, in this application, the designed receiving component allows the remaining material falling from the discharge port to be caught at the end of the coating process, facilitating the recycling of the remaining material and preventing splashing and contamination of nearby components when the remaining material drips.

[0018] Third, in this application, the gap between the scraper block and the coating roller can be changed by designing the electric telescopic rod II, scraper block, groove, guide pipe and receiving frame II, etc., so as to determine the coating thickness of water-repellent coating on non-woven fabric by changing the gap. It is suitable for non-woven fabrics with different water-repellent coating thicknesses and is more practical than the fixed gap of the prior art. Attached Figure Description

[0019] Figure 1 This is a cross-sectional three-dimensional structural diagram of the fixing frame of this utility model;

[0020] Figure 2 This is a three-dimensional disassembled structural diagram of the material receiving component of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the movable block of this utility model;

[0022] Figure 4 This is a partial cross-sectional view of the front view of this utility model;

[0023] Figure 5 This is a utility model Figure 4 A magnified structural diagram of point A in the diagram, showing the receiving frame in the receiving state;

[0024] Figure 6 This is a utility model Figure 4 Enlarged structural diagram at point B in the diagram;

[0025] Figure 7 This is a utility model Figure 4 A magnified structural diagram of point A in the diagram, showing the structure when the movable plate is driven to the end point and the discharge port is blocked by the rubber gasket.

[0026] Figure 8 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0027] The reference numerals and names in the figure are as follows:

[0028] 1. Fixed frame; 2. Coating roller; 3. Limiting slide groove; 4. Receiving assembly; 401. Movable plate; 4011. Limiting slider; 4012. Positioning insertion hole; 402. Receiving frame one; 4021. Positioning rod; 5. Fixed plate one; 6. Electric telescopic rod one; 7. Discharge frame; 701. Discharge port; 8. Fixed plate two; 9. Support plate; 10. Rubber gasket; 11. Cleaning scraper; 12. Electric telescopic rod two; 13. Movable block; 1301. Limiting rod; 14. Scraper block; 15. Groove; 16. Guide pipe; 17. Support block; 18. Receiving frame two; 19. Coating box; 20. Conveying pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-8A coating device for a nonwoven water-repellent layer includes a fixed frame 1 and a coating roller 2 rotatably connected inside the fixed frame 1. A feeding frame 7 is also fixed inside the fixed frame 1 at the top of the coating roller 2. The bottom of the feeding frame 7 is connected to a feeding port 701. The bottom of the inner wall of the feeding frame 7 is designed with an inclined structure, which facilitates the flow of coating material towards the bottom center. The bottom of the inner cavity of the feeding port 701 is designed with a flat opening, which facilitates uniform coating material discharge. A fixed plate 5 is fixed to the left side inside the fixed frame 1. An electric telescopic rod 6 is installed in the middle of one side of the fixed plate 5. The power output shaft of the electric telescopic rod 6 movably passes through the fixed plate 5 and is connected to a receiving assembly 4 slidably connected inside the fixed frame 1. The receiving assembly 4 includes a movable plate 401 and a receiving frame 402 set on the top of the movable plate 401. A cleaning scraper 11 is also fixed at the center of the bottom of the movable plate 401. After the coating work is completed, when the movable plate 401 is driven to… When the limit chute 3 reaches its end point, the cleaning scraper 11 is just in contact with the top of the coating roller 2. This allows the rotating coating roller 2 to contact the cleaning scraper 11, thus removing residual material from the coating roller 2 and cleaning it. The movable plate 401 is fixed to the power output shaft of the electric telescopic rod 6 on one side. A support plate 9 is fixed inside the receiving frame 402. A rubber gasket 10 is glued to the top of the support plate 9, and the top of the rubber gasket 10 is higher than... The top of the receiving frame 402 allows for easy compression of the rubber gasket 10 when the discharge port 701 comes into contact, thereby achieving the effect of sealing the discharge port 701. The front of the fixing frame 1 is also provided with a paint tank 19. The paint tank 19 is equipped with a pump body (not shown) inside, and the output port of the pump body is connected to a conveying pipe 20. The end of the conveying pipe 20 away from the paint tank 19 is bent and connected to the inside of the discharge frame 7. The top of the paint tank 19 is also provided with a pipe for conveniently adding paint into the paint tank 19.

[0031] Please see Figure 1 , Figure 2 and Figure 5 In this embodiment, limit sliders 4011 are fixed on both the front and rear sides of the movable plate 401. Limit grooves 3 are provided on both sides of the inner wall of the fixed frame 1 at positions corresponding to each limit slider 4011. The limit sliders 4011 are slidably connected in the limit grooves 3.

[0032] Specifically, when the movable plate 401 is in motion, the limiting slider 4011 in the limiting groove 3 can ensure the stable sliding of the movable plate 401, so that the receiving frame 402 at the top of the movable plate 401 can smoothly come to the bottom of the unloading frame 7.

[0033] Please see Figure 2 and Figure 5In this embodiment, positioning holes 4012 are provided at the four corners of the top of the movable plate 401, and a damping rubber ring is fixedly fitted in each positioning hole 4012. A positioning rod 4021 is fixed at the bottom of the receiving frame 402 and at the position corresponding to each positioning hole 4012. The positioning rod 4021 is inserted into the damping rubber ring.

[0034] Specifically, since the receiving frame 402 is inserted into the top of the movable plate 401, it is convenient to remove the receiving frame 402 from the movable plate 401 and pour out and recycle the paint in the receiving frame 402. The positioning rod 4021 is inserted into the damping ring in the positioning hole 4012, which can greatly improve the stability of the receiving frame 402 after insertion.

[0035] Please see Figure 1 , Figure 3 , Figure 4 and Figure 6 In this embodiment, a second fixing plate 8 is fixed inside the fixing frame 1 and located to the right of the coating roller 2. A support block 17 is fixed to the bottom of one side of the second fixing plate 8. A receiving frame 18 is provided on the top of the support block 17. The bottom of the receiving frame 18 is connected to a discharge pipe that passes through the support block 17. An electric telescopic rod 12 is installed on the other side of the second fixing plate 8. The power output shaft of the electric telescopic rod 12 passes through the second fixing plate 8 and is fixed to a movable block 13. A scraper block 14 is fixed on the side of the movable block 13 near the coating roller 2. A groove 15 is provided on the top of the scraper block 14. A guide pipe 16 inclined to the receiving frame 18 is connected to the bottom of the groove 15.

[0036] Specifically, the bottom of the receiving frame 2 18 has a discharge pipe, and a hose can be connected to the discharge pipe to transport the recycled paint in the receiving frame 2 18 for easy recycling. When the scraper block 14 scrapes off a portion of the paint thickness on the coating roller 2, the paint will enter the groove 15 and flow into the receiving frame 2 18 from the guide pipe 16.

[0037] Please see Figure 1 and Figure 3 In this embodiment, two mutually spaced limiting rods 1301 are fixed on the side of the movable block 13 near the fixed plate 2 8. The end of the limiting rod 1301 away from the movable block 13 moves through the fixed plate 2 8.

[0038] Specifically, the limit rod 1301 can improve the stability of the movable block 13 during movement, ensuring that the movable block 13 drives the scraper block 14 to move stably.

[0039] When using:

[0040] The paint inside the paint tank 19 can be drawn into the conveying pipe 20 by the pump body, and then guided into the feeding frame 7 through the conveying pipe 20. The paint flows out through the feeding port 701 at the bottom of the feeding frame 7 and contacts the coating roller 2. The non-woven fabric enters from the right side of the fixed frame 1 and passes between the two coating rollers 2. When the coating roller 2 rotates, the paint on its roller surface is coated onto the non-woven fabric.

[0041] After the coating operation is completed, the worker can activate the electric telescopic rod 6, thereby pushing the movable plate 401 to move, and bringing the receiving frame 402 on the top of the movable plate 401 to the bottom of the discharge port 701, as shown. Figure 5 As shown, the paint residue in the discharge port 701 can fall directly into the receiving frame 402 and be collected by the receiving frame 402, which facilitates subsequent recycling.

[0042] Another way to avoid waste of residual paint in the discharge port 701 is to further extend and retract the power output shaft of the electric telescopic rod 6, thereby driving the limit slider 4011 to the end point, that is, the receiving frame 402 to the end point. At this time, the discharge port 701 compresses the rubber gasket 10 (see...). Figure 7 Thus, the bottom of the discharge port 701 can be sealed by the rubber gasket 10, and the excess material can be sealed in the discharge port 701 to avoid waste of excess material. The method of avoiding waste of excess material can be determined according to the actual situation and is not limited here.

[0043] When a recoating operation is required, simply remove the receiving component 4 using the electric telescopic rod 6. To improve the uniformity of feeding in the feeding frame 7 and the uniform feeding from the feeding port 701, the receiving component 4 can be moved to the bottom of the feeding port 701 first, and the feeding port 701 can be sealed with the rubber gasket 10. After a certain amount of paint is fed into the feeding frame 7, the receiving component 4 can be removed. This ensures that there is sufficient paint in the feeding frame 7, uniform feeding from the feeding port 701, and uniform adhesion of the coating roller 2.

[0044] Before coating the nonwoven fabric, the coating roller 2 can activate the electric telescopic rod 12 to move the movable block 13, thereby causing the scraper block 14 to move closer to or further away from the coating roller 2. By changing the gap between them, the thickness of the water-repellent coating on the nonwoven fabric can be adjusted. After the movable block 13 is adjusted, the scraper block 14 scrapes off a portion of the coating thickness from the coating roller 2. This portion of the coating enters the guide pipe 16 from the groove 15, so that it can be easily recycled through the receiving frame 18.

[0045] It should be noted that a drive motor (not shown) for driving the coating roller 2 to rotate is installed on the back of the fixing frame 1. The coating roller 2 can be driven to rotate by the drive motor.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A coating device for a nonwoven water-repellent layer, comprising a fixed frame (1) and a coating roller (2) rotatably connected inside the fixed frame (1), characterized in that, Inside the fixing frame (1) and at the top of the coating roller (2), a feeding frame (7) is also fixed, and the bottom of the feeding frame (7) is connected to the feeding port (701). A fixing plate (5) is fixed on the left side inside the fixing frame (1). An electric telescopic rod (6) is installed in the middle of one side of the fixing plate (5). The power output shaft of the electric telescopic rod (6) passes through the fixing plate (5) and is connected to a receiving assembly (4) that is slidably connected inside the fixing frame (1). The receiving assembly (4) includes a movable plate (401) and a receiving frame (402) set on the top of the movable plate (401). The middle part of one side of the movable plate (401) is fixed to the power output shaft of the electric telescopic rod (6). A support plate (9) is fixed inside the receiving frame (402). A rubber gasket (10) is glued to the top of the support plate (9).

2. The coating device for a nonwoven water-repellent layer according to claim 1, characterized in that, Limiting sliders (4011) are fixed on both the front and rear sides of the movable plate (401). Limiting grooves (3) are opened on both sides of the inner wall of the fixed frame (1) at positions corresponding to each limiting slider (4011). The limiting sliders (4011) are slidably connected in the limiting grooves (3).

3. The coating device for a nonwoven water-repellent layer according to claim 1, characterized in that, The four corners of the top of the movable plate (401) are provided with positioning holes (4012), and each positioning hole (4012) is fixedly fitted with a damping rubber ring. The bottom of the receiving frame (402) and the position corresponding to each positioning hole (4012) are fixed with positioning rods (4021), and the positioning rods (4021) are inserted into the damping rubber rings.

4. The coating device for a nonwoven water-repellent layer according to claim 1, characterized in that, The bottom of the inner wall of the feeding frame (7) is designed as an inclined structure, the bottom of the inner cavity of the feeding port (701) is a flat opening design, and the top of the rubber pad (10) is higher than the top of the receiving frame (402).

5. The coating device for a nonwoven water-repellent layer according to claim 1, characterized in that, The front of the fixed frame (1) is also provided with a paint box (19), the inside of the paint box (19) is provided with a pump body, and the output port of the pump body is connected to a material conveying pipe (20). The end of the material conveying pipe (20) away from the paint box (19) is bent and connected to the inside of the material feeding frame (7).

6. The coating device for a nonwoven water-repellent layer according to claim 1, characterized in that, A cleaning scraper (11) is also fixed at the center of the bottom of the movable plate (401).

7. The coating device for a nonwoven water-repellent layer according to claim 1, characterized in that, A fixing plate two (8) is fixed inside the fixing frame (1) and located to the right of the coating roller (2). A support block (17) is fixed at the bottom of one side of the fixing plate two (8). A receiving frame two (18) is provided at the top of the support block (17). A discharge pipe that passes through the support block (17) is connected to the bottom of the receiving frame two (18).

8. The coating device for a nonwoven water-repellent layer according to claim 7, characterized in that, On the other side of the fixed plate 2 (8), an electric telescopic rod 2 (12) is installed. The power output shaft of the electric telescopic rod 2 (12) passes through the fixed plate 2 (8) and is fixed with a movable block (13). A scraper block (14) is fixed on the side of the movable block (13) near the coating roller (2). A groove (15) is opened on the top of the scraper block (14). The bottom of the groove (15) is connected to a guide pipe (16) that is inclined to the receiving frame 2 (18).

9. The coating device for a nonwoven water-repellent layer according to claim 8, characterized in that, Two mutually spaced limiting rods (1301) are fixed on the side of the movable block (13) near the fixed plate two (8). The end of the limiting rod (1301) away from the movable block (13) moves through the fixed plate two (8).

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