Waterproof coating device for breathable film cloth production

Abstract

The utility model relates to the technical field of breathable film cloth production, in particular to a waterproof coating device for breathable film cloth production, which comprises a coating device shell, a roll coating component for roll coating is mounted in the coating device shell, and a spraying component for spraying is mounted on the rear side of the roll coating component. A feeding assembly used for feeding is arranged at the top of the coating device shell. A feeding roller used for feeding is rotationally installed at the front end of the coating device shell, and a discharging roller used for discharging is rotationally installed at the rear end of the coating device shell. The roller coating assembly comprises an upper roller and a lower roller arranged below the upper roller in parallel. Through mutual cooperation of the spraying assembly and the roller coating assembly, roller coating can be carried out on a breathable film firstly, then spraying is carried out through the spraying assembly after roller coating is carried out, the adhesive force of a coating is increased through bottoming and thick coating of a roller firstly, then a surface layer is sprayed, and the coating uniformity of waterproof paint is improved.

Description

Technical Field

[0001] This utility model relates to the field of breathable membrane fabric production technology, and in particular to a waterproof coating device for the production of breathable membrane fabric. Background Technology

[0002] Breathable membrane fabric is a material that combines waterproofing and breathability, widely used in medical protective clothing, outdoor apparel, and building waterproofing. Through special processes and material combinations, a microporous structure is formed on or inside the membrane fabric, allowing water vapor molecules to pass through while blocking liquid water and microorganisms, thus achieving both breathability and waterproofing. Although the microporous structure of breathable membrane fabric can block liquid water, there is still a risk of water leakage under extreme conditions (such as high-pressure water jets or heavy rain).

[0003] Applying a hydrophobic coating (such as a fluorocarbon) using a waterproof coating device can improve hydrostatic pressure resistance.

[0004] The existing publicly available technical solution, CN221656984U, discloses a waterproof coating device for the production of breathable membrane fabric, including a membrane fabric output assembly, a membrane fabric roll assembly, a coating roll, an ink press, and a support frame. The device applies waterproof coating to the breathable membrane fabric through a sponge coating roll that can uniformly absorb the coating material.

[0005] In actual implementation, the above technical solution involves applying a waterproof coating to the breathable membrane by rotating a sponge coating roller. When the sponge comes into contact with the breathable membrane, local compression differences in the sponge can easily lead to fluctuations in the coating thickness. Furthermore, roller coating has poorer uniformity compared to spray coating. Summary of the Invention

[0006] The purpose of this utility model is to provide a waterproof coating device for the production of breathable membrane fabric. It can first roll-coate the breathable membrane through the cooperation of the spraying component and the roller coating component, and then spray it through the spraying component. The thick coating is first applied by the roller to increase the adhesion of the coating, and then the uniformity of the waterproof coating is improved by spraying the top layer, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a waterproof coating device for the production of breathable membrane fabric, comprising a coating device housing, wherein a roller coating assembly for roller coating is installed inside the coating device housing, and a spraying assembly for spraying is installed on the rear side of the roller coating assembly, and a feeding assembly for feeding materials is provided on the top of the coating device housing.

[0008] The front end of the coating device housing is rotatably equipped with a feed roller for feeding material, and the rear end of the coating device housing is rotatably equipped with a discharge roller for discharging material.

[0009] The roller coating assembly includes an upper roller and a lower roller arranged parallel to and below the upper roller;

[0010] The spraying assembly includes a spraying pipe and a plurality of atomizing nozzles evenly distributed at equal intervals fixed to the bottom of the spraying pipe. A rotatable support roller is provided below the spraying assembly.

[0011] Preferably, the feeding assembly further includes a paint tank fixed to the middle of the top of the coating device housing, with output pumps fixed on both the front and rear sides of the paint tank, and a conveying pipe fixed to the output end of the output pump, with a telescopic pipe fixedly connected to the end of the conveying pipe.

[0012] Preferably, the telescopic tube is externally fitted with a support flange, and the support flange is fixedly installed on the inner top surface of the coating device housing by screws.

[0013] Preferably, the roller coating assembly includes a servo motor fixed to one side of the top of the coating device housing. The power output end of the servo motor is fixed with a bidirectional lead screw, and two sets of guide sliders are connected to the outside of the bidirectional lead screw through a threaded sleeve. The upper roller and the lower roller are respectively rotatably mounted on the inside of the guide sliders.

[0014] Preferably, a guide groove is provided at the connection between the guide slider and the coating device housing, and a support shaft is fixedly inserted inside the upper and lower rollers, and the support shaft is mounted on the side of the guide slider through a bearing.

[0015] Preferably, a transfer box is provided above the upper roller and fits against the upper roller, and the transfer box is fixedly connected to one of the sets of telescopic tubes. A first cylinder is fixedly installed between the transfer box and the coating device housing. Support frames are provided on the left and right sides of the transfer box and sleeved on the outside of the support shaft.

[0016] Preferably, the spraying assembly further includes a second cylinder disposed between the spraying pipe and the coating device housing, and the spraying pipe is fixedly connected to another set of telescopic pipes.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By cooperating with the spraying and roller coating components, the breathable membrane can be coated first by roller coating, and then sprayed by the spraying component. The thick base coat is applied first by roller coating to increase the adhesion of the coating, and then the top layer is sprayed to improve the uniformity of the waterproof coating.

[0019] 2. The servo motor can adjust the distance between the upper and lower rollers under the action of the bidirectional lead screw, so that the upper and lower rollers can be adapted to breathable membranes of different thicknesses. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an overall structural view of the present invention;

[0022] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure of the feeding assembly of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Coating device housing; 2. Feeding assembly; 201. Paint tank; 202. Output pump; 203. Material conveying pipe; 204. Support flange; 205. Telescopic pipe; 3. Roller coating assembly; 301. Servo motor; 302. Guide chute; 303. Lower roller; 304. Upper roller; 305. Transfer box; 306. Support frame; 307. Support shaft; 308. Guide slider; 309. Bidirectional lead screw; 310. First cylinder; 4. Spraying assembly; 401. Atomizing nozzle; 402. Spraying pipe; 403. Second cylinder; 5. Feed roller; 6. Support roller; 7. Discharge roller. Detailed Implementation

[0026] 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.

[0027] This utility model provides a technical solution:

[0028] Please see Figures 1 to 3 A waterproof coating device for producing breathable membrane fabric includes a coating device housing 1, a roller coating component 3 for roller coating is installed inside the coating device housing 1, and a spraying component 4 for spraying is installed on the rear side of the roller coating component 3. A feeding component 2 for feeding materials is provided on the top of the coating device housing 1.

[0029] A feed roller 5 for feeding is rotatably mounted at the front end of the coating device housing 1, and a discharge roller 7 for discharging is rotatably mounted at the rear end of the coating device housing 1.

[0030] The roller coating assembly 3 includes an upper roller 304 and a lower roller 303 arranged parallel to the lower part of the upper roller 304;

[0031] The spraying assembly 4 includes a spraying pipe 402 and a plurality of atomizing nozzles 401 that are evenly distributed at equal intervals and fixed to the bottom of the spraying pipe 402. A rotatable support roller 6 is provided below the spraying assembly 4.

[0032] The feeding assembly 2 also includes a paint tank 201 fixed to the middle of the top of the coating device housing 1. Output pumps 202 are fixed on both the front and rear sides of the paint tank 201, and a conveying pipe 203 is fixed to the output end of the output pump 202. A telescopic pipe 205 is fixedly connected to the end of the conveying pipe 203. A support flange 204 is fixedly sleeved on the outside of the telescopic pipe 205, and the support flange 204 is fixedly installed on the inner top surface of the coating device housing 1 by screws.

[0033] By adopting the above technical solution, the breathable membrane enters the interior of the coating device housing 1 through the feed roller 5, is coated between the roller coating components 3, and then reaches the top of the support roller 6. After being conveyed by the support roller 6, it is transferred to the bottom of the spraying component 4. After spraying, it can be output from the coating device housing 1 through the discharge roller 7. Waterproof coating is placed in the coating tank 201. The output pump 202 is started, and the waterproof coating is conveyed through the conveying pipe 203 to the telescopic pipe 205. Through a set of telescopic pipes 205, it can be conveyed to the roller coating component 3 for replenishment. The material is conveyed through a telescopic tube 205 to the spraying assembly 4. The paint can be sprayed out through the atomizing nozzle 401 at the bottom of the spraying tube 402 to achieve the spraying operation of the breathable membrane. Through the cooperation of the spraying assembly 4 and the roller coating assembly 3, the breathable membrane can be roller coated first, and then sprayed through the spraying assembly 4. The thick coating is first applied by the roller to increase the adhesion of the coating, and then the uniformity of the waterproof coating is improved by spraying the surface layer. The feed roller 5, the discharge roller 7 and the support roller 6 are all existing guide rollers, and their structures will not be described in detail here.

[0034] Specifically, such as Figure 3 As shown, the roller coating assembly 3 includes a servo motor 301 fixed to one side of the top of the coating device housing 1. A bidirectional lead screw 309 is fixed to the power output end of the servo motor 301, and two sets of guide sliders 308 are connected to the outside of the bidirectional lead screw 309 through a threaded sleeve. The upper roller 304 and the lower roller 303 are respectively rotatably installed on the inner side of the guide sliders 308. A guide groove 302 is provided at the connection between the guide sliders 308 and the coating device housing 1. A support shaft 307 is fixedly inserted inside the upper roller 304 and the lower roller 303, and the support shaft 307 is installed on the side of the guide slider 308 through a bearing.

[0035] A transfer box 305 is provided above the upper roller 304 and is in close contact with the upper roller 304. The transfer box 305 is fixedly connected to one of the sets of telescopic tubes 205. A first cylinder 310 is fixedly installed between the transfer box 305 and the coating device housing 1. The spraying assembly 4 also includes a second cylinder 403 disposed between the spraying pipe 402 and the coating device housing 1. The spraying pipe 402 is fixedly connected to another set of telescopic tubes 205. Support frames 306 sleeved on the outside of the support shaft 307 are provided on the left and right sides of the transfer box 305.

[0036] By adopting the above technical solution, when the waterproof coating is conveyed to the roller coating assembly 3 through one set of telescopic pipes 205, the waterproof coating can enter the transfer box 305. The bottom of the transfer box 305 has an arc-shaped opening and fits against the upper roller 304. The arc-shaped opening is adapted to the size of the upper roller 304. When the breathable membrane passes between the upper roller 304 and the lower roller 303, a motor is installed at one end of the support shaft 307. The motor drives the support shaft 307 to rotate. The motor is installed inside the guide slider 308. The two sets of motors drive the support shaft 307 inside the upper roller 304 and the lower roller 303 to rotate, thereby driving the upper roller 304 and the lower roller 303 to rotate. The upper roller 304 and the lower roller 303 are fixedly connected to the support shaft 307. At the same time, the upper roller 304 and the lower roller 303 rotate in opposite directions. The waterproof coating in the transfer box 305 can be transferred to the surface of the upper roller 304. As the upper roller 304 rotates, the waterproof coating is transferred to the breathable membrane through the upper roller 304. Simultaneously, the distance between the upper roller 304 and the lower roller 303 can be adjusted according to the thickness of the breathable membrane. During adjustment, the servo motor 301 can be started. The power output end of the servo motor 301 drives the bidirectional lead screw 309 to rotate. The two sets of guide sliders 308 on the bidirectional lead screw 309 are set relative to the horizontal center line of the bidirectional lead screw 309. When the bidirectional lead screw 309 rotates, the two sets of screw sleeves on it can drive the guide sliders 308 to slide inside the guide groove 302. At the same time, since the transfer box 305 is connected to the support shaft 307 through the support frame 306, and the connection between the support frame 306 and the support shaft 307 is provided with a bearing, the support shaft 307 can rotate inside the support frame 306. While the upper roller 304 moves, the first cylinder 310 is started. The first cylinder 310 can extend and retract in coordination with the movement of the upper roller 304. At this time, the telescopic tube 205 is a plastic corrugated tube, which can extend and retract with the movement of the upper roller 304 to realize the movement of the upper roller 304.

[0037] Another set of telescopic tubes 205 can be conveyed to the spraying assembly 4. At this time, the height of the spraying tube 402 can be adjusted according to the position of the breathable membrane. The second cylinder 403 can be started to drive the spraying tube 402 to move. At this time, the telescopic tubes 205 on the spraying tube 402 also extend and retract with the movement of the spraying tube 402. The first cylinder 310 and the second cylinder 403 used are existing cylinder devices. Their related components and working principles will not be described in detail here. The servo motor 301 can adjust the distance between the upper roller 304 and the lower roller 303 under the action of the bidirectional lead screw 309, so that the upper roller 304 and the lower roller 303 can be adapted to breathable membranes of different thicknesses.

[0038] Working principle: The breathable membrane enters the coating device housing 1 through the feed roller 5, is coated between the roller coating components 3, and then reaches the support roller 6. Conveyed by the support roller 6, it is transferred to the bottom of the spraying component 4. After spraying, it exits the coating device housing 1 through the discharge roller 7. When the waterproof coating is conveyed to the roller coating component 3 through one set of telescopic pipes 205, it enters the transfer box 305. The bottom of the transfer box 305 has an arc-shaped opening that fits snugly against the upper roller 304. The arc-shaped opening is sized similarly to the upper roller 304. When the breathable membrane passes between the upper roller 304 and the lower roller 303, the support motor drives the support shaft 307 to rotate, causing the upper roller 304 and the lower roller 303 to rotate in opposite directions. The waterproof coating in the transfer box 305 can be transferred to the surface of the upper roller 304. As the upper roller 304 rotates, the waterproof coating is transferred to the breathable membrane. Simultaneously, the distance between the upper roller 304 and the lower roller 303 can be adjusted according to the thickness of the breathable membrane. During adjustment, the servo motor 301 can be activated, and the power of the servo motor 301... The output end drives the bidirectional lead screw 309 to rotate. The two sets of guide sliders 308 on the bidirectional lead screw 309 are positioned relative to each other about the horizontal center line of the bidirectional lead screw 309. When the bidirectional lead screw 309 rotates, the two sets of threaded sleeves on it can drive the guide sliders 308 to slide inside the guide groove 302. Simultaneously, since the transfer box 305 is connected to the support shaft 307 via a support frame 306, and a bearing is installed at the connection between the support frame 306 and the support shaft 307, the support shaft 307 can rotate inside the support frame 306. The upper roller 30... 4. While moving, the first cylinder 310 is activated. The first cylinder 310 can extend and retract in coordination with the movement of the upper roller 304. At this time, the telescopic tube 205 is a plastic corrugated tube, which can extend and retract with the movement of the upper roller 304 to realize the movement of the upper roller 304. Another set of telescopic tubes 205 can be transported to the spraying assembly 4. At this time, the height of the spraying tube 402 can be adjusted according to the position of the breathable membrane. Activating the second cylinder 403 can drive the spraying tube 402 to move. At this time, the telescopic tubes 205 on the spraying tube 402 also extend and retract with the movement of the spraying tube 402.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A waterproof coating device for producing breathable membrane fabric, comprising a coating device housing (1), characterized in that: The coating device housing (1) is equipped with a roller coating assembly (3) for roller coating, and a spraying assembly (4) for spraying is installed on the rear side of the roller coating assembly (3). A feeding assembly (2) for feeding materials is provided on the top of the coating device housing (1). The front end of the coating device housing (1) is rotatably equipped with a feed roller (5) for feeding, and the rear end of the coating device housing (1) is rotatably equipped with a discharge roller (7) for discharging. The roller coating assembly (3) includes an upper roller (304) and a lower roller (303) arranged parallel to the lower part of the upper roller (304). The spraying assembly (4) includes a spraying pipe (402) and a plurality of atomizing nozzles (401) evenly distributed at equal intervals fixed to the bottom of the spraying pipe (402). A rotatable support roller (6) is provided below the spraying assembly (4).

2. The waterproof coating device for producing breathable membrane fabric according to claim 1, characterized in that: The feeding assembly (2) also includes a paint tank (201) fixed in the middle of the top of the coating device housing (1). Output pumps (202) are fixed on both the front and rear sides of the paint tank (201), and a conveying pipe (203) is fixed at the output end of the output pump (202). A telescopic pipe (205) is fixedly connected to the end of the conveying pipe (203).

3. The waterproof coating device for producing breathable membrane fabric according to claim 2, characterized in that: The telescopic tube (205) is externally fixed with a support flange (204), and the support flange (204) is fixedly installed on the inner top surface of the coating device housing (1) by screws.

4. The waterproof coating device for producing breathable membrane fabric according to claim 3, characterized in that: The roller coating assembly (3) includes a servo motor (301) fixed to one side of the top of the coating device housing (1). The power output end of the servo motor (301) is fixed with a bidirectional lead screw (309), and the outer side of the bidirectional lead screw (309) is connected to two sets of guide sliders (308) through a threaded sleeve. The upper roller (304) and the lower roller (303) are respectively rotatably installed on the inner side of the guide sliders (308).

5. A waterproof coating device for producing breathable membrane fabric according to claim 4, characterized in that: A guide groove (302) is provided at the connection between the guide slider (308) and the coating device housing (1). A support shaft (307) is fixedly inserted inside the upper roller (304) and the lower roller (303), and the support shaft (307) is installed on the side of the guide slider (308) by bearing.

6. The waterproof coating device for producing breathable membrane fabric according to claim 5, characterized in that: A transfer box (305) is provided above the upper roller (304) and is in close contact with the upper roller (304). The transfer box (305) is fixedly connected to one of the telescopic tubes (205). A first cylinder (310) is fixedly installed between the transfer box (305) and the coating device housing (1). Support frames (306) are provided on the left and right sides of the transfer box (305) and sleeved on the outside of the support shaft (307).

7. A waterproof coating device for producing breathable membrane fabric according to claim 6, characterized in that: The spraying assembly (4) also includes a second cylinder (403) disposed between the spraying pipe (402) and the coating device housing (1), and the spraying pipe (402) is fixedly connected to another set of telescopic pipes (205).

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