Constant pressure feed type dustproof fabric automatic spraying device

Abstract

The utility model discloses a constant pressure feed formula dustproof fabric automatic spraying device of automatic spraying device belongs to technical field, it includes base, the recess is equipped with in the base upper end surface center -place, the recess inside center -place is equipped with conveying adsorption structure, the base upper end surface center -place is all equipped with frame to the front and the back, the front frame upper end surface center -place is equipped with spraying structure, the back frame upper end surface center -place is equipped with hot -blast structure, the spraying structure and hot -blast structure lower end surface center -place all are equipped with the conveying pipe, in addition, the utility model discloses, can to paint carry out sustained shearing mixing, prevent functional filler settlement, ensure that paint concentration is even, simultaneously, need not special tool to be able to manual screwing or disassembly spray head, when needing to replace different spray angle and different aperture's spray head to adapt different thickness and material's dustproof fabric, operating personnel can complete replacement fast, improve the versatility and production efficiency of equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of spraying devices, specifically a constant pressure feeding type automatic spraying device for dustproof fabric. Background Technology

[0002] As a key material in industrial protection, outdoor operations, and civilian dust protection, dustproof fabrics typically require the application of functional coatings to achieve dustproof, waterproof, and wear-resistant properties. As the market demands for the quality stability, production efficiency, and environmental friendliness of dustproof fabrics continue to increase.

[0003] The existing constant pressure feeding type automatic spraying device for dustproof fabric has the following main shortcomings:

[0004] Existing constant-pressure feeding automatic coating devices for dustproof fabrics mostly use ordinary centrifugal pumps or gravity feeding methods. During the transportation process, the coating is prone to pressure instability due to viscosity changes and fluctuations in pipeline resistance, resulting in uneven coating thickness on the fabric surface. At the same time, the coating is prone to particle sedimentation and component stratification during storage or transportation. Especially for coatings containing functional fillers, the problem of local dustproof performance failure of the fabric after spraying is likely to occur. Dustproof fabrics are mostly flexible materials, and traditional conveying methods can easily cause fabric wrinkles, displacement, or stretching deformation. During the spraying process, fabric displacement can cause coating overlap or missed spraying, which can easily form defective products after drying. In addition, insufficient fit between the fabric and the conveying equipment can also cause paint splatter during spraying, wasting raw materials and polluting the production environment. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a constant pressure feeding type automatic spraying device for dustproof fabrics. It solves the problem that existing technologies mostly use ordinary centrifugal pumps or gravity feeding methods, which are prone to pressure instability due to viscosity changes and pipeline resistance fluctuations during the transportation process, resulting in uneven coating thickness on the fabric surface. At the same time, the coating is prone to particle sedimentation and component stratification during storage or transportation. Especially for coatings containing functional fillers, the dustproof performance of the fabric is prone to failure after spraying.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a constant pressure feeding type automatic dustproof fabric spraying device, including a base, a groove at the center of the upper end face of the base, a conveying and adsorption structure at the center of the groove, a frame at the front and rear of the center of the upper end face of the base, a spraying structure at the center of the upper end face of the front frame, and a hot air structure at the center of the upper end face of the rear frame, a conveying pipe at the center of the lower end face of both the spraying structure and the hot air structure, and a spraying and blowing structure at the center of the lower end face of both conveying pipes;

[0007] The conveying and adsorption structure includes a conveyor belt, which is located at the center of the groove. A first servo motor is located at the front of the upper end of one side wall of the base. An adsorption chamber is located at the center of the conveyor belt. Multiple rollers are arranged front to back at the center of the adsorption chamber. Multiple adsorbers are arranged front to back at the upper end of the other side wall of the base. Multiple adsorption holes are arranged front to back on both sides of the center of the outer side wall of the conveyor belt.

[0008] As a further embodiment of this utility model: the spraying structure includes a spraying box, which is set on the upper surface of the frame at the front. A second servo motor is provided on both sides of the center of the upper surface of the spraying box, and a feed port is provided at the center of the upper surface of the spraying box.

[0009] As a further embodiment of this utility model: the output ends of the two second servo motors both penetrate through the upper end face of the spray box and extend into the interior of the spray box, and each end is fixedly connected with a spiral stirring rod. A constant pressure pump is provided at the center of the lower end face of the spray box, and one end of the conveying pipe is fixedly connected to the output end of the constant pressure pump.

[0010] As a further embodiment of this utility model: the hot air structure includes an air inlet frame, which is located at the center of the upper end face of the rear frame. A protective cover is provided at the center of the upper end face of the air inlet frame, and pins are provided at the four opposite corners of the lower end face of the protective cover.

[0011] As a further embodiment of this utility model: slots are provided at the four opposite corners of the upper end face of the air inlet frame, and the four slots are respectively adapted to the four pins. A filter screen is provided at the center of the inside of the protective cover.

[0012] As a further embodiment of this utility model: a first fan is provided at the upper center of the air intake frame, an electric heating tube is provided at the lower end of the first fan and inside the air intake frame, a fan pump is provided at the center of the lower inner wall of the air intake frame, and one end of the delivery pipe is fixedly connected to the output end of the fan pump at the rear.

[0013] As a further embodiment of this utility model: the two spraying and blowing structures include two spray pipes, which are respectively located at the center of the lower end face of the two conveying pipes. A connecting block is provided at the center of each side wall of the two spray pipes, and one side wall of each connecting block is respectively attached to the two inner side walls of the two spray pipes.

[0014] As a further embodiment of this utility model: multiple spray connecting pipes are arranged horizontally at the center of the lower end face of both spray pipes, and a nozzle is threadedly connected to the center of the lower end face of each of the multiple spray connecting pipes. A pressure gauge is provided at the lower center of one side wall of the front delivery pipe.

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

[0016] 1. This utility model uses a double-helix stirring rod driven by a second servo motor to continuously shear and mix the coating, preventing the functional filler from settling and ensuring uniform coating concentration. At the same time, the lower ends of multiple spray connection pipes are rotatably connected to the nozzles via threads, allowing manual tightening or disassembly of the nozzles without the need for special tools. When the nozzles become clogged, worn, or need to be replaced with nozzles of different spray angles and orifices to adapt to dustproof fabrics of different thicknesses and materials, operators can quickly complete the replacement, improving the equipment's versatility and production efficiency.

[0017] 2. In this utility model, the conveyor belt forms a negative pressure field through the adsorption chamber and multiple sets of adsorbers. The adsorption holes densely distributed on the surface tightly adhere the fabric, maintaining flatness and no displacement even under high-pressure spraying impact. It can stably transport fabrics of different widths. Furthermore, the hot air structure purifies the intake air through a HEPA-grade filter and uses a nickel-chromium alloy electric heating tube for precise temperature control. After being pressurized by a fan pump, it forms directional clean hot air, which is evenly blown onto the fabric surface through a blowing structure of the same specifications as the spray nozzle. The negative pressure fixation ensures that the fabric is subjected to uniform force. The clean hot air accelerates solvent evaporation while avoiding secondary pollution, thereby improving drying efficiency and enhancing coating adhesion. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front view structural diagram of the present utility model;

[0020] Figure 3 This is a side sectional view of the present invention.

[0021] Figure 4 This is a three-dimensional disassembled structural diagram of the hot air structure of this utility model;

[0022] Figure 5 This is a three-dimensional disassembled structural diagram of the spraying and blowing structure of this utility model.

[0023] In the diagram: 1. Base; 2. Groove; 3. Conveying and adsorption structure; 301. First servo motor; 302. Conveyor belt; 303. Roller; 304. Adsorber; 305. Adsorption hole; 306. Adsorption chamber; 4. Frame; 5. Spraying structure; 501. Spraying box; 502. Second servo motor; 503. Spiral stirring rod; 504. Constant pressure pump; 6. Hot air structure; 601. Air inlet frame; 602. Protective cover; 603. Slot; 604. Pin; 605. Filter screen; 606. First fan; 607. Electric heating tube; 608. Fan pump; 7. Conveying pipe; 8. Spraying and blowing structure; 801. Spraying pipe; 802. Connecting block; 803. Spraying connecting pipe; 804. Nozzle; 805. Pressure gauge. Detailed Implementation

[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0025] like Figures 1-5 As shown, this utility model provides a technical solution:

[0026] A constant pressure feeding type automatic spraying device for dustproof fabric includes:

[0027] The base 1 has a groove 2 at the center of its upper surface. The groove 2 has a conveying and adsorption structure 3 at its center. The upper surface of the base 1 has a frame 4 at both the front and rear sides. The upper surface of the front frame 4 has a spraying structure 5 at its center, and the upper surface of the rear frame 4 has a hot air structure 6 at its center. The lower surfaces of the spraying structure 5 and the hot air structure 6 are both equipped with conveying pipes 7. The lower surfaces of the two conveying pipes 7 are both equipped with spraying and blowing structures 8.

[0028] The conveying and adsorption structure 3 includes a conveyor belt 302, which is located at the center of the groove 2. A first servo motor 301 is located at the front of the upper end of one side wall of the base 1. An adsorption chamber 306 is located at the center of the conveyor belt 302. Multiple rollers 303 are arranged back and forth at the center of the adsorption chamber 306. Multiple adsorbers 304 are arranged back and forth at the upper end of the other side wall of the base 1. Multiple adsorption holes 305 are arranged back and forth on both sides of the center of the outer side wall of the conveyor belt 302. By starting the first servo motor 301, the conveyor belt 302 is driven to rotate. The dustproof fabric to be sprayed is placed on the upper surface of the conveyor belt 302. At the same time, the multiple adsorbers 304 on the other side of the base 1 are started. The adsorbers 304 generate negative pressure through the adsorption chamber 306 to the multiple adsorption holes 305 on the surface of the conveyor belt 302, which firmly adsorbs the fabric onto the conveyor belt 302, ensuring that the fabric is flat and stable during the conveying process and avoiding fabric displacement due to movement or spraying pressure.

[0029] The spraying structure 5 includes a spraying box 501, which is located on the upper surface of the front frame 4. A second servo motor 502 is located on both sides of the center of the upper surface of the spraying box 501. An inlet is located at the center of the upper surface of the spraying box 501. The output ends of both second servo motors 502 penetrate the upper surface of the spraying box 501 and extend into the interior of the spraying box 501, with a spiral stirring rod 503 fixedly connected to each end. A constant pressure pump 504 is located at the center of the lower surface of the spraying box 501. One end of the front conveying pipe 7 is fixedly connected to the output end of the constant pressure pump 504. When spraying is required, the conveying pipe 7 feeds water into the spraying box 501. After the dustproof coating is added to the feed port, the two second servo motors 502 are started to drive the spiral stirring rod 503 to rotate at high speed in the spray box 501, continuously stirring the coating to prevent sedimentation or stratification and ensure the uniformity of the coating. After stirring is completed, the constant pressure pump 504 is started. The constant pressure pump 504 pressurizes the coating in the spray box 501 and delivers it to the corresponding spray blowing structure 8 through the front conveying pipe 7. At this time, the pressure gauge 805 on the front conveying pipe 7 monitors the conveying pressure in real time. The constant pressure pump 504 adjusts the output pressure to ensure that the coating maintains a stable pressure during the conveying process, thus achieving constant pressure feeding.

[0030] The hot air structure 6 includes an air inlet frame 601, which is located at the center of the upper surface of the rear frame 4. A protective cover 602 is located at the center of the upper surface of the air inlet frame 601. Pins 604 are located at the four opposite corners of the lower surface of the protective cover 602. Slots 603 are located at the four opposite corners of the upper surface of the air inlet frame 601, and the four slots 603 are respectively matched with the four pins 604. A filter screen 605 is located at the center of the inside of the protective cover 602. A first fan 606 is located near the upper center of the inside of the air inlet frame 601. An electric heating element 607 is located below the first fan 606 and inside the air inlet frame 601. A blower pump 608 is located at the center of the inner wall of 601. One end of the conveying pipe 7 at the rear is fixedly connected to the output end of the blower pump 608. The coated fabric continues to be conveyed by the conveyor belt 302 to the bottom of the hot air structure 6. The protective cover 602 is fixed by the engagement of the pin 604 with the slot 603 of the air inlet frame 601. The external air enters the air inlet frame 601 after being filtered by the filter screen 605 inside the protective cover 602. The first blower 606 conveys the filtered air downwards, which is heated by the electric heating tube 607 to form hot air. The blower pump 608 pressurizes the hot air and conveys it to the corresponding spraying and blowing structure 8 through the conveying pipe 7 at the rear.

[0031] The two spraying and blowing structures 8 include two spray pipes 801, which are respectively located at the center of the lower end face of the two conveying pipes 7. Connecting blocks 802 are provided at the center of both side walls of the two spray pipes 801, with one side wall of each connecting block 802 respectively fitting against the two inner side walls of the two spray pipes 801. Multiple spray connecting pipes 803 are arranged laterally at the center of the lower end face of each of the two spray pipes 801, and each of the multiple spray connecting pipes 803 is threadedly connected to a nozzle 804 at the center of its lower end face. A pressure gauge 805 is located near the lower center of one side wall of the forward conveying pipe 7. The paint enters the forward spray pipe 801 through the conveying pipe 7. Multiple spray connecting pipes 803 arranged horizontally at the lower end of the spray pipe 801 are used to uniformly spray the dustproof fabric surface passing below through the threaded nozzle 804. The connecting block 802 reinforces the spray pipe 801 to ensure its stability during the spraying process. The threaded connection design of the nozzle 804 makes it easy to replace different models of nozzles 804 as needed to adjust the spraying range or precision. Furthermore, hot air is blown evenly onto the freshly sprayed fabric surface through the spray pipe 801, spray connecting pipes 803, and nozzle 804 at the rear, quickly evaporating the moisture in the paint and achieving the drying and curing of the fabric.

[0032] The working principle of this utility model is as follows: By placing the dustproof fabric to be processed on the input end of the conveyor belt 302, the first servo motor 301 is started. The driving force of the first servo motor 301 is transmitted to the roller 303 through the transmission mechanism, which drives the conveyor belt 302 to run horizontally and uniformly along the groove 2. The arrangement design of the roller 303 ensures that the conveyor belt 302 runs smoothly and avoids fabric wrinkles. At the same time, multiple adsorbers 304 on the other side of the base 1 are started. The adsorbers 304 generate negative pressure and transmit it to the adsorption chamber 306 through the pipe. Since multiple adsorption holes 305 are distributed on both sides of the surface of the conveyor belt 302, the negative pressure acts on the bottom surface of the fabric through the adsorption holes 305, forming a uniform adsorption force, which tightly adheres the fabric to the surface of the conveyor belt 302. This design can adapt to fabrics of different widths and ensures that the fabric does not shift or curl during the spraying and drying process.

[0033] By activating the second servo motor 502 inside the spray box 501, the spiral stirring rod 503 is driven to rotate at high speed. The spiral blades shear and mix the paint, preventing particle sedimentation or component separation, and ensuring uniform paint concentration. The stirring process continues until the spraying operation is completed. The constant pressure pump 504 draws paint from the bottom of the spray box 501, and the output pressure is maintained stable through the internal pressure regulating mechanism. The paint is then transported to the spray blowing structure 8 through the front delivery pipe 7. The pressure gauge 805 provides real-time feedback on the pressure inside the pipe. If the pressure deviates from the preset value... The system automatically adjusts the power of the constant pressure pump 504 for compensation, realizing the core function of constant pressure feeding. After the paint enters the spray pipe 801, it is distributed to multiple horizontally arranged spray connection pipes 803 through the internal flow channel. The nozzle 804 is connected to the spray connection pipe 803 by thread. Different nozzles 804 with different orifice diameters or spray angles can be replaced as needed to ensure that the paint evenly covers the surface of the fabric in a mist or column. The connecting block 802 enhances the structural rigidity of the spray pipe 801, avoids pipe vibration caused by high pressure paint impact, and ensures stable spray trajectory.

[0034] The filter 605 inside the protective cover 602 is a HEPA-grade filter to remove dust and fibers from the outside air, preventing contamination of the freshly sprayed fabric surface. The first fan 606 forces clean air into the air inlet frame 601. The airflow is heated to a preset temperature by the electric heating tube 607, which uses a nickel-chromium alloy heating element, forming dry hot air. The fan pump 608 pressurizes the heated hot air and delivers it to the corresponding spray pipe 801 through the rear conveyor pipe 7. The hot air is blown vertically onto the fabric surface through the spray connection pipe 803 and the nozzle 804, forming a uniform airflow field. The synergistic effect of the hot air temperature and wind speed accelerates the evaporation of solvents in the coating and promotes the bonding between the coating and the fabric fibers, shortening the curing time. The dried fabric is conveyed to the output end by the conveyor belt 302, where a manual or automated receiving mechanism collects the finished product.

[0035] Furthermore, the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0036] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A constant pressure feeding type automatic spraying device for dustproof fabric, characterized in that: Includes a base (1), a groove (2) is provided at the center of the upper end face of the base (1), a conveying and adsorption structure (3) is provided at the center of the inside of the groove (2), a frame (4) is provided at the front and rear of the center of the upper end face of the base (1), a spraying structure (5) is provided at the center of the upper end face of the front frame (4), a hot air structure (6) is provided at the center of the upper end face of the rear frame (4), a conveying pipe (7) is provided at the center of the lower end face of the spraying structure (5) and the hot air structure (6), and a spraying and blowing structure (8) is provided at the center of the lower end face of the two conveying pipes (7); The conveying and adsorption structure (3) includes a conveyor belt (302), which is located at the center of the groove (2). A first servo motor (301) is provided at the front of the upper end of one side wall of the base (1). An adsorption cavity (306) is provided at the center of the conveyor belt (302). Multiple rollers (303) are arranged back and forth at the center of the adsorption cavity (306). Multiple adsorbers (304) are arranged back and forth at the upper end of the other side wall of the base (1). Multiple adsorption holes (305) are arranged back and forth on both sides of the center of the outer side wall of the conveyor belt (302).

2. The constant pressure feeding type automatic dustproof fabric spraying device according to claim 1, characterized in that: The spraying structure (5) includes a spraying box (501), which is located on the upper surface of the front frame (4). A second servo motor (502) is provided on both sides of the center of the upper surface of the spraying box (501), and a feed port is provided at the center of the upper surface of the spraying box (501).

3. The constant pressure feeding type automatic dustproof fabric spraying device according to claim 2, characterized in that: The output ends of the two second servo motors (502) pass through the upper end face of the spray box (501) and extend into the interior of the spray box (501), and the ends of the two motors are fixedly connected to a spiral stirring rod (503). A constant pressure pump (504) is provided at the center of the lower end face of the spray box (501), and one end of the conveying pipe (7) is fixedly connected to the output end of the constant pressure pump (504) at the front.

4. The constant pressure feeding type automatic dustproof fabric spraying device according to claim 1, characterized in that: The hot air structure (6) includes an air inlet frame (601), which is located at the center of the upper end face of the rear frame (4). A protective cover (602) is provided at the center of the upper end face of the air inlet frame (601), and a pin (604) is provided at each of the four opposite corners of the lower end face of the protective cover (602).

5. The constant pressure feeding type automatic dustproof fabric spraying device according to claim 4, characterized in that: The air inlet frame (601) has slots (603) at the four opposite corners of its upper surface. The four slots (603) are respectively matched with four pins (604). The protective cover (602) has a filter screen (605) at its center.

6. The constant pressure feeding type automatic dustproof fabric spraying device according to claim 4, characterized in that: The air intake frame (601) is provided with a first fan (606) at the upper center of the interior. The lower end of the first fan (606) and inside the air intake frame (601) is provided with an electric heating tube (607). The air intake frame (601) is provided with a fan pump (608) at the center of the lower inner wall. The conveying pipe (7) is fixedly connected at one end to the output end of the fan pump (608) at the rear.

7. The constant pressure feeding type automatic dustproof fabric spraying device according to claim 1, characterized in that: The two spraying and blowing structures (8) include two spray pipes (801), which are respectively located at the center of the lower end face of the two conveying pipes (7). A connecting block (802) is provided at the center of both side walls of the two spray pipes (801), and one side wall of the two connecting blocks (802) is respectively attached to the two inner side walls of the two spray pipes (801).

8. The constant pressure feeding type automatic dustproof fabric spraying device according to claim 7, characterized in that: Multiple spray connecting pipes (803) are arranged horizontally at the center of the lower end face of both spray pipes (801). A nozzle (804) is threadedly connected to the center of the lower end face of each of the multiple spray connecting pipes (803). A pressure gauge (805) is provided at the lower center of one side wall of the front delivery pipe (7).

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