Roller coating equipment and using method thereof

Abstract

The invention discloses roller coating equipment and a using method thereof, and relates to the technical field of coatings, and the technical scheme is characterized in that an equipment body comprises an output assembly, a tension adjusting assembly, a coating chamber, a differential coating assembly, a drying oven and a rolling assembly which are sequentially arranged in the fabric conveying direction; the tension is reduced when the fabric is driven to descend, the thickness of a coating formed on the fabric is reduced when the rotating speed of the differential coating assembly is increased, the thickness of the coating formed on the fabric is increased when the rotating speed of the differential coating assembly is reduced, the bottom of the drying chamber communicates with an exhaust pipe, the exhaust pipe extends into the coating chamber, and coating in the coating chamber is heated by absorbing the temperature of the exhaust pipe. The problem that a traditional coating is uneven in thickness is effectively solved, the coating quality is improved, the machining cost is reduced by recycling resources, the labor intensity is reduced by adopting an automatic control system, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coatings, and more particularly to a roller coating device and a method for using the same. Background Art

[0002] In many industrial production fields, such as textiles, packaging, and composite materials manufacturing, coating process is a key link.

[0003] However, during the coating process, traditional hook-shaped scrapers are affected by many factors such as the surface flatness of the fabric, the pressure distribution of the scraper, and the fluidity of the paint, which can easily lead to uneven coating thickness. This hook-shaped scraper can easily scratch the fabric when applying thinner coatings, making it difficult to apply ultra-thin coatings on the fabric.

[0004] Therefore, it is necessary to design a coating equipment to overcome the defects of the traditional scraping method, achieve high-precision and uniform glue coating and flexibly adjust the thickness of the glue layer. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a roller coating device and a method for using the same.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A roller coating device includes a device body, on which a fabric is conveyed, and the device body includes an output assembly, a tension adjustment assembly, a coating chamber, a differential coating assembly, an oven, and a rolling assembly arranged in sequence along the fabric conveying direction; The tension adjustment assembly includes four electric push rods and two adjusting rollers. The ends of the adjusting rollers are rotatably connected to the telescopic ends of the two electric push rods. The fabric abuts against the top ends of the adjusting rollers. The electric push rods are used to drive the two adjusting rollers to lift or lower the fabric. When the fabric is lifted, the tension during transportation increases, and when the fabric is lowered, the tension during transportation decreases. The differential coating assembly includes a rotating roller 1, a rotating roller 2, and a rotating roller 3. The rotating roller 1 and the rotating roller 2 are both rotated by a motor. The rotating roller 1 contacts the coating, the rotating roller 3 contacts the fabric and has a rotation speed greater than that of the rotating roller 1. The rotating roller 2 counteracts the rotating roller 1 and the rotating roller 3. When the rotation speed of the rotating roller 3 increases, the thickness of the coating formed on the fabric becomes thinner, and when the rotation speed of the rotating roller 3 decreases, the thickness of the coating formed on the fabric becomes thicker. The bottom of the drying chamber is connected to an exhaust pipe, and the exhaust pipe extends into the paint chamber. The paint in the paint chamber is heated by absorbing the temperature of the exhaust pipe.

[0007] Preferably: an array of four electric push rods is arranged at the top of the paint chamber, the electric push rods are arranged to be telescopic in height, the telescopic ends of the electric push rods are fixedly connected to a connecting block, the connecting block is provided with a through hole, one end of the adjusting roller passes through the through hole along the longitudinal direction of the equipment body and is rotatably connected to the connecting block.

[0008] Preferably: the rotating roller one, rotating roller two and rotating roller three are all located in the paint chamber, the rotating roller one is arranged on the side close to the output component, the rotating roller two is located between the rotating roller one and the rotating roller three, the liquid level in the paint chamber is flush with the rotation axis of the rotating roller one, the bottom ends of the rotating roller two and the rotating roller three are both higher than the liquid level in the paint chamber, and the paint in the paint chamber is transferred to the rotating roller three through the rotating roller one and the rotating roller two in sequence.

[0009] Preferably: a groove is integrally formed on the top of the coating chamber, a coating groove is provided on the bottom of the groove, the top of the rotating roller three passes through the coating groove, four snap-in grooves are provided in an array on the bottom of the groove, and splash guards are snapped into the four snap-in grooves, and the length of the splash guard is less than the length of the coating groove and greater than the length of the rotating roller three.

[0010] Preferably: the output component and the rolling component are both composed of two horizontally arranged conveying rollers, and any conveying roller in the output component and the rolling component is rotated by a motor. The output component and the rolling component are both rotatably connected to a cloth roller, and the diameter of the cloth roller is greater than the distance between two adjacent conveying rollers. The inner side wall of the equipment body is rotatably connected to a plurality of guide rollers.

[0011] Preferably: the inner side wall of the equipment body is provided with four slide grooves 1 arranged opposite to each other in pairs, and the slide groove 1 is slidably connected to a limit assembly, and the limit assembly includes a slider 1, a sleeve rod, a spring, a slider 2, a moving rod and a resistance plate, the slider 1 is slidably connected in the slide groove 1, the inner wall of the sleeve rod is provided with two slide grooves 2 arranged opposite to each other, the slider 2 is slidably connected in the sleeve rod through two slide grooves 2, one end of the sleeve rod is fixedly connected to the slider 1, the two ends of the spring respectively resist against the slider 1 and the slider 2, one end of the moving rod is fixedly connected to the slider 2, the moving rod is synchronously slidably connected to the sleeve rod with the slider 2, one side of the resistance plate is fixedly connected to one end of the moving rod passing through the sleeve rod, the length of the resistance plate is greater than the width of the sleeve rod, and the side of the resistance plate away from the slider 2 resists against one end of the cloth roller.

[0012] Preferably: the end of the exhaust pipe away from the drying chamber passes through the side wall of the paint chamber, the end of the exhaust pipe passing through the paint chamber is connected to a fan, the inner wall of the paint chamber is provided with a water level sensor, the bottom of the paint chamber is connected to a material delivery pipe, and the end of the material delivery pipe away from the paint chamber is connected to a water pump.

[0013] Preferably, a control console is provided on the outer side wall of the equipment body, a temperature sensor is provided on the inner side wall of the oven, and the motor, electric push rod, fan, water pump, water level sensor and temperature sensor are all electrically connected to the control console.

[0014] A method for using a roller coating device is used to operate a roller coating device, and the method comprises the following steps: Step 1: The fabric to be processed is rolled up on the cloth roller and placed on the output assembly. The cloth roller is restricted from shaking by the limit assembly. The fabric is pulled through two adjusting rollers and several guide rollers and transported to the equipment body. Step 2: Use the console to adjust the speed of each motor, the telescopic distance of the electric push rod, the exhaust flow of the fan, the feed flow of the water pump, and the temperature in the oven to ensure the normal operation of the equipment. Step 3: When the rotating roller 1 rotates, it absorbs the coating and transfers it to the rotating roller 2. When the rotating roller 2 rotates, it transfers the coating to the rotating roller 3. The fabric is guided by the guide roller into the groove and contacts the rotating roller 3 for coating. Step 4: Use the control console to adjust the differential speed of the rotating rollers 1 and 3 in real time to change the thickness of the coating. At the same time, use the control console to adjust the tension of the fabric during conveying, the temperature in the oven, and the feed flow rate of the water pump in real time to match the change in coating thickness. Step 5: The paint in the coating room absorbs the temperature of the exhaust pipe through heat transfer to increase the temperature in the coating room, maintaining the fluidity of the paint during the coating process. The coated fabric is guided by the guide roller into the drying room for drying and curing; Step 6: Place an unloaded cloth roller on the rolling component to rewind the processed fabric, and use the limit component to limit the shaking of the cloth roller.

[0015] In summary, the present invention has the following beneficial effects: The differential speed coordination between the rotating rollers 1 and 3 enables precise control of the coating thickness. At the same time, the transition of the rotating roller 2 allows the coating to be evenly diluted during the transfer process, reducing the fluidity of the coating, and enabling coating processing on ultra-thin fabrics. Since the rotating roller 2 is unpowered, it can absorb the tension fluctuations caused by the speed difference between the rotating rollers 1 and 3, avoiding streaks or faults in the coating due to sudden stretching, effectively solving the problem of uneven thickness of traditional coatings and improving coating quality.

[0016] The splash shield can prevent paint from splashing when the rotating roller three rotates quickly. At the same time, excess paint will gather in the groove and flow back into the paint chamber from the gap between the rotating roller three and the coating tank, reducing waste of resources.

[0017] The tension of the fabric during conveyance can be adjusted in real time by adjusting the component, so that when the rotation speed of the rotating roller three is increased, the tension of the fabric during conveyance can be appropriately increased, thereby reducing the amplitude of the fluctuation or shaking of the fabric caused by the influence of the rotating roller three, so that the coating can be evenly adhered to the surface of the fabric. At the same time, since the thickness of the coating becomes thinner, the temperature in the drying room can be appropriately lowered, thereby reducing the energy consumption of the drying room. The temperature inside the paint chamber is heated by absorbing the temperature of the high-temperature exhaust gas in the exhaust pipe through heat transfer, thereby maintaining the fluidity of the paint during the coating process. This eliminates the need for additional heating devices in the paint chamber and realizes the recovery and reuse of waste heat from the high-temperature exhaust gas. The equipment adopts an automated control system. Various parameters can be set and adjusted through the console. The operator only needs to perform simple operations to complete the entire coating process, which reduces labor intensity and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 An exploded view of the tension adjustment assembly of the present invention; Figure 5 It is a cross-sectional view of the limiting component in the present invention.

[0019] Figure: 1. Equipment body; 2. Output assembly; 3. Tension adjustment assembly; 301. Electric push rod; 302. Adjusting roller; 303. Connecting block; 304. Through hole; 4. Coating chamber; 5. Differential coating assembly; 501. Rotating roller 1; 502. Rotating roller 2; 503. Rotating roller 3; 6. Drying chamber; 7. Rolling assembly; 8. Motor; 9. Exhaust pipe; 10. Groove; 11. Coating tank; 12. Card Connecting groove; 13. Splash shield; 14. Conveyor roller; 15. Cloth roller; 16. Chute 1; 17. Limiting assembly; 1701. Slider 1; 1702. Sleeve rod; 1703. Spring; 1704. Slider 2; 1705. Moving rod; 1706. Contact plate; 18. Chute 2; 19. Fan; 20. Water level sensor; 21. Feed pipe; 22. Water pump; 23. Control console; 24. Temperature sensor. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0021] Embodiment: A roller coating device, such as Figure 1-Figure 3As shown, the device body 1 includes an output component 2, a tension adjustment component 3, a coating chamber 4, a differential coating component 5, an oven and a rolling component 7, which are arranged in sequence along the fabric conveying direction. The output component 2 and the rolling component 7 are both composed of two horizontally arranged conveying rollers 14. Any one of the conveying rollers 14 constituting the output component 2 and the rolling component 7 is rotated by a motor 8. A cloth roller 15 is rotatably connected to each of the output component 2 and the rolling component 7. The diameter of the cloth roller 15 is greater than the distance between two adjacent conveying rollers 14 to prevent the cloth roller 15 from falling out from between the two conveying rollers 14. The inner side wall of the device body 1 is rotatably connected to a plurality of guide rollers, which are driven to rotate by the friction force during fabric conveyance. The fabric to be processed is wound on the cloth roller 15 and then placed on the output component 2. The fabric output from the output component 2 is guided by the plurality of guide rollers and passes through the tension adjustment component 3, the coating chamber 4 and the drying chamber 6 in sequence, and is finally wound on the cloth roller 15 of the rolling component 7.

[0022] like Figure 1 、 Figure 2 and Figure 4 As shown, the tension adjustment assembly 3 includes four electric push rods 301 and two adjusting rollers 302. The four electric push rods 301 are arranged in an array at the top of the coating chamber 4. The electric push rods 301 are set to be telescopic in height. The telescopic end of the electric push rod 301 is fixedly connected to a connecting block 303. The connecting block 303 is provided with a through hole 304. One end of the adjusting roller 302 passes through the through hole 304 along the longitudinal direction of the equipment body 1 and is rotatably connected to the connecting block 303, so that the two ends of the adjusting roller 302 are respectively rotatably connected to the telescopic ends of the two electric push rods 301. The adjusting roller 302 is connected to the fiber end and one end of the adjusting roller 302 passing through the connecting block 303 can be connected to the buckle to prevent the adjusting roller 302 from falling out of the through hole 304 during long-term rotation. The fabric is against the top of the adjusting roller 302. When the electric push rod 301 is stretched and contracted, the fabric is driven up and down respectively. When the fabric is lifted up, the angle between the fabric and the guide roller and the adjusting roller 302 becomes smaller, thereby increasing the friction and resistance between the fabric and the guide roller and the adjusting roller 302, so that the tension of the fabric during transportation is increased, and conversely, when the fabric is lowered, the tension during transportation is reduced.

[0023] like Figure 1-Figure 3As shown, the differential coating assembly 5 includes a rotating roller 1 501, a rotating roller 2 502 and a rotating roller 3 503. The rotating rollers 1 501, 2 502 and 3 503 have the same diameter. The rotating rollers 1 501 and 2 502 are all rotated by a motor 8. The rotating rollers 1 501, 2 502 and 3 503 are all located in the coating chamber 4. The rotating roller 1 501 is arranged on the side close to the output assembly 2. The rotating roller 2 502 is located between the rotating rollers 1 501 and 3 503. The rotating rollers 2 502 are against the rotating rollers 1 501 and 3 503. The liquid level in the coating chamber 4 is flush with the rotation axis of the rotating roller 1 501, so that the bottom of the rotating roller 1 501 can contact the coating, and the bottom ends of the rotating roller 2 502 and the rotating roller 3 503 are both higher than the liquid level in the coating chamber 4. The coating in the coating chamber 4 is transferred to the rotating roller 3 503 through the rotating roller 1 501 and the rotating roller 2 502 in turn. A groove 10 is integrally formed on the top of the coating chamber 4, and a coating groove 11 is provided on the bottom surface of the groove 10. The top end of the rotating roller 3 503 passes through the coating groove 11 and is against the fabric, so that the rotating roller 3 503 applies the coating on the fabric when it rotates.

[0024] like Figure 3 As shown, the rotating roller 2 502 is not provided with power, and the rotating roller 2 502 rotates by friction with the rotating roller 1 501 and the rotating roller 2 502. The rotating speed of the rotating roller 3 503 is greater than the rotating speed of the rotating roller 1 501, so that when the rotating roller 2 502 is in contact with the rotating roller 1 501 and the rotating roller 3 503, the glue forms a certain accumulation on the surface of the rotating roller 2 502. The rotating roller 3 503 rotates rapidly to evenly apply the coating on the surface of the rotating roller 2 502 on the fabric. The faster the rotating roller 3 503 rotates, the thinner the coating formed on the fabric. Conversely, the slower the rotating speed, the thicker the coating. Therefore, it is only necessary to adjust the rotating roller 1. The speed difference between 501 and rotating roller three 503 can conveniently and accurately adjust the coating thickness, which can meet different glue coating thickness requirements and greatly improve the applicability and flexibility of the equipment. At the same time, the coating is evenly diluted during the transfer process through the transition of rotating roller two 502, reducing the fluidity of the coating, and can be used for coating of ultra-thin fabrics. Since rotating roller two 502 is unpowered, it can absorb the tension fluctuation caused by the speed difference between rotating roller one 501 and rotating roller three 503, avoiding the situation where the coating will have stripes or faults due to sudden stretching, effectively solving the problem of uneven thickness of traditional coatings and improving the coating quality.

[0025] like Figure 1-Figure 3As shown, the bottom array of the groove 10 is provided with four snap-in grooves 12, and a splash guard 13 is snapped into the four snap-in grooves 12. The length of the splash guard 13 is less than the length of the coating groove 11 and greater than the length of the rotating roller three 503. In order to improve the applicability of the equipment body 1, the length of the rotating roller three 503 is greater than the width of the fabric, so that the part of the rotating roller three 503 that is not in contact with the fabric will splash paint when it rotates rapidly. Therefore, this problem can be effectively solved by setting the splash guard 13. The inner wall of the groove 10 is treated with hydrophobicity so that the paint blocked by the splash guard 13 will gather at the bottom of the groove 10 and flow back into the paint chamber 4 from the gap between the rotating roller three 503 and the coating groove 11, thereby reducing the waste of resources.

[0026] like Figure 1 and Figure 2 As shown, the bottom of the drying chamber 6 is connected to an exhaust pipe 9, which extends into the coating chamber 4. The drying chamber 6 and the coating chamber 4 are both made of stainless steel, which has good thermal insulation and can effectively reduce temperature loss. The exhaust pipe 9 is made of aluminum alloy and has good thermal conductivity. The end of the exhaust pipe 9 away from the drying chamber 6 passes through the side wall of the coating chamber 4, and the end of the exhaust pipe 9 passing through the coating chamber 4 is connected to a fan 19, which discharges the high-temperature exhaust gas generated in the drying chamber 6 through the fan 19. At the same time, when the high-temperature exhaust gas passes through the coating chamber 4, the coating in the coating chamber 4 can absorb the exhaust gas temperature in the exhaust pipe 9 by heat transfer to heat it, thereby increasing the temperature in the coating chamber 4, thereby maintaining the fluidity of the coating during the coating process, so that the coating chamber 4 does not need to be equipped with an additional heating device, thereby realizing the recovery and reuse of the waste heat of the high-temperature exhaust gas, and the end of the exhaust pipe 9 passing through the coating chamber 4 is connected to an exhaust gas treatment device.

[0027] like Figures 1-4As shown, a water level sensor 20 is provided on the inner wall of the coating chamber 4, and a feed pipe 21 is connected to the bottom of the coating chamber 4. The end of the feed pipe 21 away from the coating chamber 4 is connected to a water pump 22. The paint can be extracted by the water pump 22 and continuously transported to the coating chamber 4 through the feed pipe 21, thereby maintaining the liquid level in the coating chamber 4. A control console 23 is provided on the outer wall of the equipment body 1, and a temperature sensor 24 is provided on the inner wall of the oven. The motor 8, the electric push rod 301, the fan 19, the water pump 22, the water level sensor 20, and the temperature sensor 24 are all electrically connected to the control console 23. The control console 23 is configured as a programmable logic controller or an industrial computer for receiving signals from the water level sensor 20 and the temperature sensor 24, and adjusting the speed of the motor 8 and the speed of the electric push rod 301 according to the parameters and the program. The telescopic distance, the exhaust flow of the fan 19, the feed flow of the water pump 22, and the temperature in the oven are precisely controlled. The tension of the fabric during transportation can be adjusted in real time through the adjustment component, so that when the rotation speed of the rotating roller three 503 is increased, the tension of the fabric during transportation can be appropriately increased, thereby reducing the amplitude of the fabric's fluctuation or shaking due to the influence of the rotating roller three 503, so that the coating can be evenly adhered to the surface of the fabric. At the same time, since the thickness of the coating becomes thinner, the required drying and curing temperature and time are reduced, so the temperature in the drying chamber 6 can be appropriately lowered, thereby reducing the energy consumption of the drying chamber 6. The liquid level sensor can adjust the feed amount according to the change of the coating thickness to ensure the liquid level height in the coating chamber, thereby realizing the automation and intelligence of the entire coating process, reducing labor intensity and improving production efficiency.

[0028] like Figure 1 、 Figure 2 and Figure 5As shown, the inner wall of the device body 1 is provided with four slide grooves 16 arranged in pairs, and a limit assembly 17 is slidably connected in the slide groove 16. The limit assembly 17 includes a slider 1701, a sleeve rod 1702, a spring 1703, a slider 2 1704, a moving rod 1705 and a contact plate 1706. The slider 1701 is slidably connected in the slide groove 16, and the inner wall of the sleeve rod 1702 is provided with two slide grooves 2 18 arranged in opposite directions. The slider 2 1704 is slidably connected in the sleeve rod 1702 through the two slide grooves 2 18. One end of the sleeve rod 1702 is fixedly connected to the slider 1701, and the spring 1703 is fixedly connected to the spring 1704. The two ends of 03 are respectively against slider 1 1701 and slider 2 1704, one end of the moving rod 1705 is fixedly connected to slider 2 1704, and the moving rod 1705 is synchronously slidably connected to the sleeve rod 1702 with the slider 2 1704, and one side of the contact plate 1706 is fixedly connected to the end of the moving rod 1705 passing through the sleeve rod 1702, and the length of the contact plate 1706 is greater than the width of the sleeve rod 1702, and the side of the contact plate 1706 away from slider 2 1704 is against one end of the cloth roller 15, and the limiting component 17 can limit the cloth roller 15 on the output component 2 and the winding component 7, thereby ensuring the stability of the fabric during the transportation process.

[0029] like Figure 1-Figure 5 As shown, a method for using a roller coating device is used to operate a roller coating device, and the method includes the following steps: Step 1: The fabric to be processed is wound onto the cloth roller 15 and placed on the output assembly 2. The cloth roller 15 is restricted from shaking by the limit assembly 17. The fabric is pulled through two adjusting rollers 302 and several guide rollers and transported to the equipment body 1. Step 2: Use the control console 23 to adjust the speed of each motor 8, the telescopic distance of the electric push rod 301, the exhaust flow of the fan 19, the feed flow of the water pump 22, and the temperature in the oven to ensure the normal operation of the equipment body 1; Step 3: The first rotating roller 501 absorbs the coating and transfers it to the second rotating roller 502. The second rotating roller 502 transfers the coating to the third rotating roller 503. The fabric is guided by the guide roller into the groove 10 and contacts the third rotating roller 503 for coating. Step 4: The control console 23 is used to adjust the differential speed of the rotating roller 1 501 and the rotating roller 3 503 in real time to change the thickness of the coating. At the same time, the control console 23 is used to adjust the tension of the fabric during transportation, the temperature in the oven, and the feed flow rate of the water pump 22 in real time to match the change in coating thickness. Step 5: The paint in the coating chamber 4 absorbs the temperature of the exhaust pipe 9 by heat transfer to increase the temperature in the coating chamber 4, maintaining the fluidity of the paint during the coating process. The coated fabric is guided by the guide roller into the drying chamber 6 for drying and curing; Step 6: Place an unloaded cloth roller 15 on the rolling component 7 to reel in the processed fabric, and limit the shaking of the cloth roller 15 through the limiting component 17.

[0030] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A roller coating device, comprising a device body (1), wherein a fabric is conveyed on the device body (1), characterized in that: The equipment body (1) comprises an output assembly (2), a tension adjustment assembly (3), a coating chamber (4), a differential coating assembly (5), an oven, and a rolling assembly (7) which are sequentially arranged along the fabric conveying direction; The tension adjustment assembly (3) comprises four electric push rods (301) and two adjustment rollers (302), the two ends of the adjustment rollers (302) being rotatably connected to the telescopic ends of the two electric push rods (301), the fabric abutting against the top ends of the adjustment rollers (302), the electric push rods (301) being used to drive the two adjustment rollers (302) to lift or lower the fabric, the tension during transportation of the fabric increasing when the fabric is lifted, and the tension during transportation of the fabric decreasing when the fabric is lowered; The differential coating assembly (5) comprises a rotating roller 1 (501), a rotating roller 2 (502) and a rotating roller 3 (503), wherein the rotating roller 1 (501) and the rotating roller 2 (502) are both rotated by a motor (8), the rotating roller 1 (501) contacts the coating, the rotating roller 3 (503) contacts the fabric and has a rotation speed greater than that of the rotating roller 1 (501), the rotating roller 2 (502) counteracts the rotating roller 1 (501) and the rotating roller 3 (503), and when the rotation speed of the rotating roller 3 (503) increases, the thickness of the coating formed on the fabric becomes thinner, and when the rotation speed of the rotating roller 3 (503) decreases, the thickness of the coating formed on the fabric becomes thicker; The bottom of the drying chamber (6) is connected to an exhaust pipe (9), which extends into the coating chamber (4). The coating in the coating chamber (4) is heated by absorbing the temperature of the exhaust pipe (9).

2. A roller coating device according to claim 1, characterized in that: Four electric push rods (301) are arranged in an array on the top of the coating chamber (4). The electric push rods (301) are configured to be telescopic in height. The telescopic ends of the electric push rods (301) are fixedly connected to a connecting block (303). The connecting block (303) is provided with a through hole (304). One end of the adjusting roller (302) passes through the through hole (304) along the longitudinal direction of the equipment body (1) and is rotatably connected to the connecting block (303).

3. The roller coating device according to claim 1, characterized in that: The rotating roller 1 (501), the rotating roller 2 (502) and the rotating roller 3 (503) are all located in the coating chamber (4); the rotating roller 1 (501) is arranged on a side close to the output component (2); the rotating roller 2 (502) is located between the rotating roller 1 (501) and the rotating roller 3 (503); the liquid level in the coating chamber (4) is flush with the rotation axis of the rotating roller 1 (501); the bottom ends of the rotating roller 2 (502) and the rotating roller 3 (503) are both higher than the liquid level in the coating chamber (4); the coating in the coating chamber (4) is sequentially transferred to the rotating roller 3 (503) through the rotating roller 1 (501) and the rotating roller 2 (502).

4. A roller coating device according to claim 3, characterized in that: The top of the coating chamber (4) is integrally formed with a groove (10), the bottom surface of the groove (10) is provided with a coating groove (11), the top end of the rotating roller (503) passes through the coating groove (11), the bottom surface of the groove (10) is provided with four snap-fit ​​grooves (12) in an array, and splash guards (13) are snap-fitted into the four snap-fit ​​grooves (12), and the length of the splash guard (13) is less than the length of the coating groove (11) and greater than the length of the rotating roller (503).

5. The roller coating device according to claim 1, characterized in that: The output assembly (2) and the rolling assembly (7) are both composed of two horizontally arranged conveying rollers (14). Any conveying roller (14) constituting the output assembly (2) or the rolling assembly (7) is rotated by a motor (8). The output assembly (2) and the rolling assembly (7) are both rotatably connected to a cloth roller (15). The diameter of the cloth roller (15) is greater than the distance between two adjacent conveying rollers (14). The inner side wall of the equipment body (1) is rotatably connected to a plurality of guide rollers.

6. The roller coating device according to claim 1, characterized in that: The inner side wall of the device body (1) is provided with four slide grooves (16) arranged in pairs, and the slide grooves (16) are slidably connected to the limiting assembly (17). The limiting assembly (17) includes a slider (1701), a sleeve rod (1702), a spring (1703), a slider (1704), a moving rod (1705) and a contact plate (1706). The slider (1701) is slidably connected to the slide groove (16). The inner wall of the sleeve rod (1702) is provided with two slide grooves (18) arranged in pairs, and the slider (1704) is slidably connected to the sleeve rod (1702) through the two slide grooves (18). The sleeve rod (1702) One end of the spring (1703) is fixedly connected to the slider one (1701), and the two ends of the spring (1703) are respectively against the slider one (1701) and the slider two (1704). One end of the moving rod (1705) is fixedly connected to the slider two (1704). The moving rod (1705) is connected to the sleeve rod (1702) in a synchronous sliding manner with the slider two (1704). One side of the contact plate (1706) is fixedly connected to the end of the moving rod (1705) passing through the sleeve rod (1702). The length of the contact plate (1706) is greater than the width of the sleeve rod (1702). The side of the contact plate (1706) away from the slider two (1704) is against one end of the cloth roller (15).

7. The roller coating device according to claim 1, characterized in that: The end of the exhaust pipe (9) away from the drying chamber (6) passes through the side wall of the coating chamber (4), and the end of the exhaust pipe (9) passing through the coating chamber (4) is connected to a fan (19). The inner wall of the coating chamber (4) is provided with a water level sensor (20). The bottom of the coating chamber (4) is connected to a material delivery pipe (21), and the end of the material delivery pipe (21) away from the coating chamber (4) is connected to a water pump (22).

8. The roller coating device according to claim 7, characterized in that: A control console (23) is provided on the outer side wall of the equipment body (1), a temperature sensor (24) is provided on the inner side wall of the oven, and the motor (8), electric push rod (301), fan (19), water pump (22), water level sensor (20), and temperature sensor (24) are all electrically connected to the control console (23).

9. A method for using a roller coating device, for operating the roller coating device according to any one of claims 1 to 8, characterized in that: The method of use includes the following steps: Step 1: The fabric to be processed is rolled up on a cloth roller (15) and placed on an output assembly (2), and the cloth roller (15) is restricted from shaking by a limit assembly (17), and the fabric is pulled through two regulating rollers (302) and a plurality of guide rollers and transported to the device body (1); Step 2: Regulate the rotation speed of each motor (8), the telescopic distance of the electric push rod (301), the exhaust flow rate of the fan (19), the feed flow rate of the water pump (22), and the temperature in the oven through the control console (23) to ensure the normal operation of the equipment body (1); Step 3: When the rotating roller 1 (501) rotates, it absorbs the coating and transfers it to the rotating roller 2 (502). When the rotating roller 2 (502) rotates, it transfers the coating to the rotating roller 3 (503). The fabric enters the groove (10) through the guidance of the guide roller and contacts the rotating roller 3 (503) for coating operation. Step 4: adjusting the differential speed of the rotating roller 1 (501) and the rotating roller 3 (503) in real time through the control console (23) to change the thickness of the coating, and at the same time adjusting the tension of the fabric during transportation, the temperature in the oven, and the feed flow rate of the water pump (22) in real time through the control console (23) to match the change in coating thickness; Step 5: The paint in the coating chamber (4) absorbs the temperature of the exhaust pipe (9) by heat transfer to increase the temperature in the coating chamber (4), thereby maintaining the fluidity of the paint during the coating process. The coated fabric is guided by the guide roller into the drying chamber (6) for drying and curing; Step 6: Place an unloaded cloth roller (15) on the rolling assembly (7) to reel in the processed fabric, and limit the shaking of the cloth roller (15) through the limiting assembly (17).

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