Non-woven fabric water-repellent coating device

Abstract

The utility model discloses a non-woven fabric water-repellent coating device, which relates to the technical field of non-woven fabric coating, and comprises a coating structure and a cleaning structure, the coating structure comprises an equipment frame, and a discharging roller, a coating roller, a first guide roller, a second guide roller and a coating scraper which are respectively and rotatably connected to the inner wall of the equipment frame, the cleaning structure comprises a threaded column rotationally connected to the inner wall of the equipment frame, a nut seat spirally driven on the surface of the threaded column, a cleaning scraper fixedly mounted on the lower surface of the nut seat, and a second motor fixedly mounted on the front surface of the equipment frame and used for driving the threaded column to rotate. Through rapid switching of the electromagnetic valves of the water inlet pipe and the feeding pipe, seamless switching between a coating mode and a cleaning mode can be achieved, the roller surface is evenly covered with cleaning liquid through the material supporting frame, the movable cleaning scraper is matched to scrape the coating roller, and therefore coating attached to the surface of the coating roller can be rapidly and efficiently scraped away.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric coating technology, and in particular to a nonwoven fabric water-repellent coating device. Background Technology

[0002] Water-repellent coating of nonwoven fabrics involves applying a finishing agent with a special molecular structure to the surface of the nonwoven fabric, thereby altering the chemical properties of the fiber surface and giving it water-repellent properties.

[0003] The doctor blade coating machine is an important piece of equipment in the water-repellent coating of nonwoven fabrics. However, during the coating process, some water-repellent coating residue adheres to the coating roller surface. After use, to prevent the coating from solidifying on the coating roller surface and causing uneven coating or mechanical jamming, manual cleaning of the coating roller is required. However, the coating roller is circular and has a large area, making manual cleaning inefficient. To address these shortcomings, we propose a water-repellent coating device for nonwoven fabrics. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a nonwoven fabric water-repellent coating device.

[0005] To address the problems existing in the prior art, this utility model adopts the following technical solution: a non-woven fabric water-repellent coating device, comprising:

[0006] The coating structure includes a frame, a feeding roller, a coating roller, a first guide roller, a second guide roller and a coating blade rotatably connected to the inner wall of the frame, and a paint discharge assembly disposed inside the frame.

[0007] The cleaning structure includes a threaded column rotatably connected to the inner wall of the equipment frame, a nut seat with helical drive on the surface of the threaded column, a cleaning scraper fixedly installed on the lower surface of the nut seat, a second motor fixedly installed on the front of the equipment frame for driving the threaded column to rotate, and a guide assembly provided on the inner wall of the equipment frame for guiding the nut seat.

[0008] The paint discharge assembly includes a sliding groove formed on the inner wall of the equipment frame, a discharge pipe slidably installed on the inner wall of the sliding groove, a discharge channel formed on the surface of the discharge pipe, a material support frame fixedly installed on the inner wall of the discharge channel; and a drive assembly provided on the surface of the equipment frame for driving the discharge pipe to move.

[0009] Preferably, the guide assembly includes a guide rod fixedly installed on the inner wall of the equipment frame, and a through hole opened on the surface of the nut seat, wherein the inner wall of the through hole is slidably connected to the surface of the guide rod.

[0010] Preferably, one side of the cleaning scraper is in contact with the outer surface of the coating roller.

[0011] Preferably, the two ends of the discharge pipe extend to the front and back of the equipment frame, respectively, and are connected to a water inlet pipe and a feed pipe, respectively.

[0012] Preferably, both the water inlet pipe and the feed pipe are equipped with solenoid valves, and the water inlet pipe is connected to an external water pump, while the feed pipe is connected to an external feeding system.

[0013] Preferably, a first motor capable of driving the coating blade to rotate is fixedly installed on the back of the equipment frame.

[0014] Preferably, a third motor capable of driving the coating roller to rotate is fixedly installed on the front of the equipment frame.

[0015] Preferably, the drive assembly includes cylinders that are fixedly installed on the front and back of the equipment frame, respectively, and the telescopic end of the cylinder is fixedly connected to the outer surface of the discharge pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The solenoid valves of the water inlet pipe and the feed pipe can quickly switch between coating and cleaning modes. The cleaning liquid is evenly covered on the coating roller surface through the material support frame, and the movable cleaning scraper scrapes the coating roller, thereby quickly and efficiently removing the coating material adhering to the coating roller surface.

[0018] 2. By setting an adjustable-angle coating blade, the distance between the coating blade and the coating roller can be increased. The distance between the material support frame and the coating roller can be increased by using an adjustable-position material support frame, thereby enabling the coating of nonwoven fabrics of different thicknesses. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an undue limitation. In the drawings:

[0020] Figure 1 This is a three-dimensional first-view schematic diagram of the present invention;

[0021] Figure 2 This is a three-dimensional second-view schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the nonwoven fabric coating of this utility model;

[0023] Figure 4 This is a cross-sectional view of the present invention;

[0024] Figure 5 This is a three-dimensional schematic diagram of the cleaning scraper of this utility model;

[0025] Figure 6This is a front sectional view of the discharge pipe of this utility model.

[0026] The components in the diagram are numbered as follows: 10 Equipment frame, 11 Feeding roller, 12 Coating roller, 13 First guide roller, 14 Second guide roller, 15 Coating scraper, 20 Threaded column, 21 Nut seat, 22 Cleaning scraper, 23 Second motor, 24 First motor, 25 Third motor, 30 Discharge pipe, 31 Discharge trough, 32 Material support frame, 40 Guide rod, 50 Water inlet pipe, 51 Feed pipe, 52 Solenoid valve, 60 Cylinder, 70 Nonwoven fabric. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figure 1-6 This utility model provides a technical solution: a non-woven fabric water-repellent coating device, comprising: a coating structure and a cleaning structure.

[0029] The coating structure includes a frame 10, a feeding roller 11, a coating roller 12, a first guide roller 13, a second guide roller 14, and a coating blade 15, all rotatably connected to the inner wall of the frame 10, and a paint discharge assembly disposed inside the frame 10. A first motor 24, which drives the coating blade 15 to rotate, is fixedly installed on the back of the frame 10. Driving the first motor 24 forward and reverse can drive the coating blade 15 to contact or move away from the coating blade 15. When the nonwoven fabric contacts the coating roller 12, driving the first motor 24 can drive the coating blade 15 closer to the nonwoven fabric. Conversely, when the coating blade 15 is rotated away from the coating roller 12, the nonwoven fabric can easily pass between the coating blade 15 and the coating roller 12. A third motor 25, which drives the coating roller 12 to rotate, is fixedly installed on the front of the frame 10.

[0030] The coating discharge assembly includes a sliding groove formed on the inner wall of the equipment frame 10, a discharge pipe 30 slidably installed on the inner wall of the sliding groove, a discharge trough 31 formed on the surface of the discharge pipe 30, and a material support frame 32 fixedly installed on the inner wall of the discharge trough 31; and a drive assembly provided on the surface of the equipment frame 10 for driving the discharge pipe 30 to move. The drive assembly includes cylinders 60 fixedly installed on the front and back of the equipment frame 10 respectively, and the telescopic end of the cylinders 60 is fixedly connected to the outer surface of the discharge pipe 30. When the nonwoven fabric passes between the material support frame 32 and the coating roller 12, the drive cylinder 30 can drive the material support roller 32 to approach the nonwoven fabric. By setting an adjustable-angle coating blade 15 and an adjustable-position material support frame 32, nonwoven fabrics of different thicknesses can be coated.

[0031] The two ends of the discharge pipe 30 extend to the front and back of the equipment frame 10, respectively, and are connected to the water inlet pipe 50 and the feed pipe 51. Solenoid valves 52 are provided on the surface of both the water inlet pipe 50 and the feed pipe 51. The water inlet pipe 50 is connected to an external water pump, and the feed pipe 51 is connected to an external feeding system. Water-repellent coating can be conveyed into the discharge pipe 30 through the feed pipe 51. The water-repellent coating will enter the material support frame 32 along the discharge trough 31. When the non-woven fabric passes through the material support frame 32, the water-repellent coating can be applied to the non-woven fabric. The non-woven fabric continues to move and will pass through the coating scraper 15. The coating scraper 15 can be used to scrape off the excess water-repellent coating on the non-woven fabric. The scraped coating will flow into the material support frame 32 for recycling, thereby performing water-repellent coating on the non-woven fabric.

[0032] The cleaning structure includes a threaded post 20 rotatably connected to the inner wall of the equipment frame 10, a nut seat 21 with helical drive on the surface of the threaded post 20, a cleaning scraper 22 fixedly installed on the lower surface of the nut seat 21, a second motor 23 fixedly installed on the front of the equipment frame 10 for driving the threaded post 20 to rotate, and a guide assembly provided on the inner wall of the equipment frame 10 for guiding the nut seat 21. One side of the cleaning scraper 22 contacts the outer surface of the coating roller 12. The guide assembly includes a guide rod 40 fixedly installed on the inner wall of the equipment frame 10 and a through hole opened on the surface of the nut seat 21, and the inner wall of the through hole is slidably connected to the surface of the guide rod 40. The nut seat 21 can slide along the surface of the guide rod 40, thereby limiting the movement trajectory of the nut seat 21.

[0033] When cleaning of the coating roller 12 is required, cleaning fluid can be introduced into the discharge pipe 30 through the water inlet pipe 50. The cleaning fluid will flow along the material support frame 32 onto the coating roller 12, thereby initially dissolving the adhesive on the coating roller 12. Then, the third motor 25 is driven to rotate the coating roller 12, so that the cleaning fluid is evenly applied to the coating roller 12. Next, the second motor 23 is driven to rotate the threaded column 20. The threaded column 20 and the nut seat 21 are screwed together, and the guide assembly guides the nut seat 21. The cleaning blade 22 can be driven to scrape off the adhesive on the surface of the coating roller 12. At the same time, an external collection frame can be added to the bottom of the equipment frame 10 to collect wastewater and scraped material. The solenoid valve 52 of the water inlet pipe 50 and the feed pipe 51 can be quickly switched to seamlessly switch between coating and cleaning modes. The cleaning liquid is evenly covered on the surface of the coating roller 12 through the material support frame 32. With the help of the movable cleaning blade 22, the coating roller 12 is scraped, so as to quickly and efficiently remove the coating material attached to the surface of the coating roller 12.

[0034] Specifically, the working principle and operation method of this utility model are as follows:

[0035] Coating supply: The nonwoven fabric passes through the feeding roller 11, the first guide roller 13, the coating roller 12 and the second guide roller 14 in sequence, and is connected to the external drying mechanism. The external feeding system delivers water-repellent coating to the discharge pipe 30 through the feed pipe 51. The coating flows into the material support frame 32 through the discharge trough 31 to form a continuous coating layer. As the nonwoven fabric moves, the coating can be transferred to the surface of the substrate.

[0036] Scraper finishing: Driven by the first motor 24, the coating scraper 15 approaches the coating roller 12 at a step angle of 0.01° to scrape off the excess coating on the surface of the nonwoven fabric into the material support frame 32 for recycling, forming a uniform coating.

[0037] Cleaning stage

[0038] Cleaning solution injection: Close the solenoid valve of feed pipe 51, start water inlet pipe 50 to inject 60℃ deionized water and surfactant mixture, and the cleaning solution covers the surface of coating roller 12 along the material support frame 32.

[0039] Dissolution-scraping synergy: The third motor 25 drives the coating roller 12 to rotate at a low speed, and the second motor 23 drives the cleaning scraper 22 to advance at a constant speed along the guide rod 40 through the threaded column 20 and the nut seat 21. The cleaning scraper 22 scrapes away the residue after dissolution with a gap of 0.5-1μm.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nonwoven fabric water repellent coating device characterized by comprising: The utility model relates to a coating device, which comprises a device frame (10), a feeding roller (11), a coating roller (12), a first guide roller (13), a second guide roller (14) and a coating scraper (15) rotatably connected to the inner wall of the device frame (10) respectively, and a paint discharging assembly arranged in the device frame (10). The utility model relates to a coating device, which comprises a device frame (10), a feeding roller (11), a coating roller (12), a first guide roller (13), a second guide roller (14) and a coating scraper (15) rotatably connected to the inner wall of the device frame (10) respectively, and a paint discharging assembly arranged in the device frame (10). The paint discharging assembly comprises a sliding groove formed in the inner wall of the device frame (10), a discharging pipe (30) slidingly arranged in the inner wall of the sliding groove, a discharging groove (31) formed in the surface of the discharging pipe (30), and a material supporting frame (32) fixedly arranged in the inner wall of the discharging groove (31). The guiding assembly comprises a guiding rod (40) fixedly arranged in the inner wall of the device frame (10) and a through hole formed in the surface of the nut seat (21), and the inner wall of the through hole is slidingly connected with the surface of the guiding rod (40).

2. A nonwoven water repellent coating apparatus according to claim 1, wherein: One side of the cleaning scraper (22) is in contact with the outer surface of the coating roller (12).

3. A nonwoven water repellent coating apparatus according to claim 1, wherein: The two ends of the discharging pipe (30) extend to the front and back surfaces of the device frame (10) respectively, and are respectively communicated with a water inlet pipe (50) and a material inlet pipe (51).

4. The nonwoven water repellent coating apparatus of claim 1, wherein: The surfaces of the water inlet pipe (50) and the material inlet pipe (51) are provided with electromagnetic valves (52), the water inlet pipe (50) is connected with an external water pump, and the material inlet pipe (51) is connected with an external material supply system.

5. A nonwoven water repellent coating apparatus according to claim 4, wherein: The back surface of the device frame (10) is fixedly provided with a first motor (24) capable of driving the coating scraper (15) to rotate.

6. A nonwoven water repellent coating apparatus according to claim 1, wherein: The front surface of the device frame (10) is fixedly provided with a third motor (25) capable of driving the coating roller (12) to rotate.

7. A nonwoven water repellent coating apparatus as defined in claim 1, wherein: The driving assembly comprises air cylinders (60) fixedly arranged on the front and back surfaces of the device frame (10) respectively, and the telescopic ends of the air cylinders (60) are fixedly connected with the outer surface of the discharging pipe (30).

8. A nonwoven water repellent coating apparatus according to claim 1 wherein: ​

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