A water-based coating device with low-temperature adaptability

Abstract

This utility model discloses a water-based coating device with low-temperature adaptability, comprising: a coating device including a main body, an unwinding assembly, and a winding assembly, wherein the unwinding assembly is located on one side of the main body and the winding assembly is located on the other side of the main body; and a coating head disposed at the upper end of the main body, the coating head including a coating tank and a stirring assembly and an electric heating plate installed in the middle of the coating tank, wherein a heat preservation box is connected to the bottom of the coating tank, which can maintain the temperature of the coating to be sprayed and quickly dry the coating after spraying, avoiding crystallization during coating atomization and solving the problem of sudden drop in the drying speed of water-based coatings in low-temperature environments.

Description

Technical Field

[0001] This utility model relates to the field of water-based coating technology, and in particular to a water-based coating device with low-temperature adaptability. Background Technology

[0002] Water-based coatings are a coating application technology that uses water as a solvent or dispersion medium. With water as the solvent, the content of volatile organic compounds (VOCs) is as low as 5%-10%, significantly reducing construction pollution and meeting green building requirements. Solvent-free coatings eliminate fire hazards, improve the construction environment, and reduce health hazards to operators. With the strengthening of environmental regulations and the advancement of technology, water-based coatings are being used more and more widely in fields such as construction, furniture, and automobiles, and have huge market potential in the future.

[0003] Existing coating processes cannot do without coating equipment, which consists of an unwinding system, coating head, drying chamber and rewinding device. However, when working at low temperatures, the coating is prone to freezing. At the same time, when the coating passes through the pipeline and pump body and finally enters the nozzle, it cannot be guaranteed that its temperature will not be lost, which can easily lead to crystallization when the coating is atomized. Utility Model Content

[0004] This invention provides a water-based coating device with low-temperature adaptability, which can keep the coating to be sprayed at a constant temperature and dry the coating quickly after spraying, avoiding crystallization during coating atomization and solving the problem of sudden drop in the drying speed of water-based coatings in low-temperature environments.

[0005] This utility model provides a water-based coating device with low-temperature adaptability, comprising:

[0006] A coating apparatus includes a main body, an unwinding assembly, and a winding assembly, wherein the unwinding assembly is located on one side of the main body and the winding assembly is located on the other side of the main body.

[0007] A coating head is located at the upper end of the main body of the device. The coating head includes a paint tank and a stirring assembly and an electric heating plate installed in the middle of the paint tank. The bottom of the paint tank is connected to an insulation box, and a collection pipe is laid between the insulation box and the paint tank. Spray nozzles are connected at equal intervals in the middle of the insulation box, and a heating pipe and heat-conducting liquid are installed inside the insulation box.

[0008] A drying assembly is located on one side edge of the main body of the device. The drying assembly includes a drying chamber and an aluminum reflector, a short-wave infrared tube, and a mid-wave infrared tube installed inside the drying chamber.

[0009] In a water-based coating device with low-temperature adaptability according to an embodiment of the present invention, the upper end of the coating tank is provided with a feed port connected to an external liquid supply pipe, the stirring assembly includes a stirring motor installed in the center of the coating tank, and the output end of the stirring motor is connected to a stirring shaft, and stirring blades are arranged in an array on the outer side of the stirring shaft.

[0010] In a water-based coating device with low-temperature adaptability according to an embodiment of the present invention, a placement cavity is provided in the middle of the coating tank, and a precision metering pump is installed inside the placement cavity. The input and output ends of the precision metering pump are both connected to an insulation pipe that communicates with the inside of the coating tank and the inside of the collection pipe. A temperature sensor is installed on the outside of both the insulation box and the coating tank.

[0011] In a water-based coating device with low-temperature adaptability according to an embodiment of the present invention, a connecting rod is installed on the outside of the drying box, and mounting holes are opened on the outside of both the connecting rod and the outside of the device body, and mounting bolts are installed inside the mounting holes. Inlet and outlet are opened on the outside of both the aluminum reflector and the drying box, and guide roller 2 is installed inside the aluminum reflector.

[0012] In a water-based coating device with low-temperature adaptability according to an embodiment of the present invention, a control box and a circuit breaker are bolted to the upper end of the drying box, and a control circuit board is installed inside the control box, while an infrared thermocouple is installed on the outside of the drying box.

[0013] In a water-based coating device with low-temperature adaptability according to an embodiment of the present invention, the main body of the device includes a support frame, a drive roller, an auxiliary roller, a guide roller and a material receiving tray connected in the middle of the support frame, a drive mechanism is installed on the outside of the support frame, and a drive motor is installed on the outside of the drive mechanism.

[0014] In the water-based coating device with low-temperature adaptability according to one embodiment of the present invention, the outer shell of the drive mechanism is made of aluminum-silicon alloy, and the drive motor is a rare earth permanent magnet motor.

[0015] In a water-based coating device with low-temperature adaptability according to one embodiment of the present invention, the unwinding assembly includes an unwinding bracket and an unwinding roller connected in the middle of the unwinding bracket.

[0016] In a water-based coating device with low-temperature adaptability according to an embodiment of the present invention, the winding assembly includes a winding bracket, a winding roller installed in the middle of the winding bracket, and a winding motor installed on the outside of the winding bracket, wherein the winding motor is a rare earth permanent magnet motor.

[0017] The technical solution provided in this application embodiment may include the following beneficial effects: This application designs a water-based coating device with low-temperature adaptability. Since a coating head and a drying component are installed on the upper end and the outside of the device body, the coating to be sprayed can be kept at a constant temperature and the coating after spraying can be dried quickly, avoiding the crystallization phenomenon when the coating is atomized and solving the problem of the sudden drop in the drying speed of water-based coatings in low-temperature environments.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a water-based coating device with low-temperature adaptability provided in an embodiment of this application;

[0021] Figure 2 yes Figure 1 A partially disassembled structural diagram of the coating device in the diagram;

[0022] Figure 3 yes Figure 1 A partial side-section diagram of the coating device in the diagram;

[0023] Figure 4 yes Figure 1 A partial structural diagram of the coating head in the process;

[0024] Figure 5 yes Figure 1 A partial side-section diagram of the coating device in the diagram;

[0025] Figure 6 yes Figure 5 Enlarged view of point A in the middle. 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] like Figures 1 to 6 As shown, this application provides a water-based coating apparatus with low-temperature adaptability, comprising: a coating apparatus 100, including a main body 10, an unwinding assembly 40, and a winding assembly 50, wherein the unwinding assembly 40 is located on one side of the main body 10, and the winding assembly 50 is located on the other side of the main body 10; a coating head 20, disposed at the upper end of the main body 10, the coating head 20 including a coating tank 21, and a stirring assembly 23 and an electric heating plate 24 installed in the middle of the coating tank 21, and a heat preservation device connected to the bottom of the coating tank 21. The device includes a heat preservation box 210, with a connecting pipe 28 laid between the heat preservation box 210 and the coating box 21. Spray nozzles 29 are equidistantly connected in the middle of the heat preservation box 210, and a heating pipe 211 and heat-conducting liquid are installed inside the heat preservation box 210. The drying assembly 30 is located on one side edge of the main body 10 of the device. The drying assembly 30 includes a drying box 31 and an aluminum reflector 35, a short-wave infrared tube 311 and a medium-wave infrared tube 312 installed inside the drying box 31, so that the coating device can be used normally in a low-temperature environment.

[0030] After adopting the above technical solution, since the coating head 20 is located at the upper end of the main body 10 of the device, when the winding assembly 50 unwinds the fabric, the coating can be sprayed onto the upper end of the fabric. At the same time, the coating is kept at a constant temperature until it is sprayed out, so there will be no crystallization phenomenon when the coating is atomized and the problem of the drying speed of water-based coatings drops sharply in low temperature environment is solved.

[0031] For example, the upper end of the paint tank 21 is provided with an inlet 22 that communicates with an external liquid supply pipe. The stirring assembly 23 includes a stirring motor 231 installed in the center of the paint tank 21, and the output end of the stirring motor 231 is connected to a stirring shaft 232. Stirring blades 233 are arrayed on the outer side of the stirring shaft 232, so that the stirring shaft 232 and stirring blades 233 can be rotated by the output end of the stirring motor 231 to stir the paint. The middle part of the paint tank 21 is provided with a placement cavity 25, and a precision metering pump 26 is installed inside the placement cavity 25. The input and output ends of the precision metering pump 26 are both connected to the inside of the paint tank 21 and the inside of the collection pipe 28. Temperature sensors 212 are installed on the outside of the insulation pipe 27, the insulation box 210, and the paint box 21. When the paint enters the paint box 21, the electric heating plate 24 is activated to heat it while the stirring component 23 stirs the paint. The temperature sensor 212 detects the temperature inside the paint box 21 until the set temperature is reached. At the same time, the precision metering pump 26 introduces the paint into the collection pipe 28 through the insulation pipe 27. Then the heating pipe 211 heats the heat transfer liquid inside the insulation box 210, which heats the multiple sets of nozzles 29. This ensures that the paint is heated when it passes through the nozzles 29, and that no crystallization occurs when the paint is sprayed from the nozzles 29.

[0032] In one optional embodiment, a connecting rod 32 is installed on the outside of the drying chamber 31, and mounting holes 33 are provided on the outside of both the connecting rod 32 and the outside of the main body 10 of the device. Mounting bolts 34 are installed inside the mounting holes 33. An inlet 36 and an outlet 37 are provided on the outside of both the aluminum reflector 35 and the drying chamber 31. A guide roller 310 is installed inside the aluminum reflector 35. A control box 39 and a circuit breaker 38 are installed on the upper end of the drying chamber 31 by bolts. A control circuit board is installed inside the control box 39. An infrared thermocouple 313 is installed on the outside of the drying chamber 31. After the fabric is sprayed, it enters the drying chamber 31 and the interior of the aluminum reflector 35 through the inlet 36. Under the support of the guide roller 310, the control circuit board inside the control box 39 controls the short-wave infrared tube 311 and the medium-wave infrared tube 312 to start, so as to dry the coating. The aluminum reflector 35 has a reflectivity ≥95%.

[0033] It should be noted that by emitting short-wave infrared light through the short-wave infrared tube 311, the coating is preferentially absorbed by surface water molecules, achieving "outside-in" drying. Then, the medium-wave infrared light emitted by the medium-wave infrared tube 312 is absorbed by the organic resin, promoting the cross-linking reaction. At the same time, the infrared thermocouple 313 detects the temperature, and the circuit breaker 38 cuts off the power in time when the temperature is too high. Infrared drying saves 30-40% energy compared to hot air drying, increases the drying speed by more than 50% (e.g., a 100μm coating can be cured within 15 seconds), and has no airflow interference, ensuring the uniformity of the coating. This solves the problem of the sudden drop in the drying speed of water-based coatings in low-temperature environments.

[0034] In an optional embodiment, the main body 10 of the device includes a support frame 11, a drive roller 12, an auxiliary roller 13, a guide roller 16 and a material receiving plate 17 connected in the middle of the support frame 11, a drive mechanism 14 is installed on the outside of the support frame 11, and a drive motor 15 is installed on the outside of the drive mechanism 14.

[0035] It should be noted that the drive roller 12, auxiliary roller 13, and guide roller 16 are all movably connected to the support frame 11, and the material receiving plate 17 is located at the bottom of the support frame 11 to receive the falling paint. It can be connected to the input end of the drive mechanism 14 through the output end of the drive motor 15, and then the drive roller 12 is driven to rotate through the drive mechanism 14, thereby rolling the cloth.

[0036] In one optional embodiment, the housing of the drive mechanism 14 is made of aluminum-silicon alloy, and the drive mechanism 14 is a gearbox, while the drive motor 15 is a rare-earth permanent magnet motor, thereby ensuring that the drive mechanism 14 can be used in cold-resistant environments.

[0037] It should be noted that the seals inside the drive mechanism 14 are fluoropolymer rubber seals that are resistant to -50°C, and the drive motor 15 can also operate at low temperatures, as it is a low-temperature rare-earth permanent magnet motor.

[0038] In an optional embodiment, the unwinding assembly 40 includes an unwinding bracket 41 and an unwinding roller 42 connected in the middle of the unwinding bracket 41, which facilitates the support of the unwinding roller 42 and makes it convenient to unwind the fabric.

[0039] In an optional embodiment, the winding assembly 50 includes a winding bracket 51, a winding roller 52 mounted in the middle of the winding bracket 51, and a winding motor 53 mounted on the outside of the winding bracket 51. The winding motor 53 is a rare earth permanent magnet motor, which can support the winding roller 52. The winding roller 52 is driven to rotate through the output end of the winding motor 53, which facilitates the winding of the fabric.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A water-based coating device with low-temperature adaptability, characterized in that, include: A coating apparatus includes a main body, an unwinding assembly, and a winding assembly, wherein the unwinding assembly is located on one side of the main body and the winding assembly is located on the other side of the main body. A coating head is located at the upper end of the main body of the device. The coating head includes a paint tank and a stirring assembly and an electric heating plate installed in the middle of the paint tank. The bottom of the paint tank is connected to an insulation box, and a collection pipe is laid between the insulation box and the paint tank. Spray nozzles are connected at equal intervals in the middle of the insulation box, and a heating pipe and heat-conducting liquid are installed inside the insulation box. A drying assembly is located on one side edge of the main body of the device. The drying assembly includes a drying chamber and an aluminum reflector, a short-wave infrared tube, and a mid-wave infrared tube installed inside the drying chamber.

2. The water-based coating apparatus with low-temperature adaptability according to claim 1, characterized in that, The upper end of the paint tank is provided with a feed port that is connected to an external liquid supply pipe. The stirring assembly includes a stirring motor installed in the center of the paint tank, and the output end of the stirring motor is connected to a stirring shaft. Stirring blades are arranged in an array on the outer side of the stirring shaft.

3. The water-based coating apparatus with low-temperature adaptability according to claim 1, characterized in that, The paint tank has a placement cavity in the middle, and a precision metering pump is installed inside the placement cavity. The input and output ends of the precision metering pump are connected to an insulation pipe that communicates with the inside of the paint tank and the inside of the collection pipe. A temperature sensor is installed on the outside of both the insulation box and the paint tank.

4. The water-based coating apparatus with low-temperature adaptability according to claim 1, characterized in that, A connecting rod is installed on the outside of the drying oven, and mounting holes are opened on both the outside of the connecting rod and the outside of the main body of the device. Mounting bolts are installed inside the mounting holes. Inlet and outlet are opened on the outside of both the aluminum reflector and the drying oven, and guide rollers are installed inside the aluminum reflector.

5. The water-based coating apparatus with low-temperature adaptability according to claim 4, characterized in that, The upper end of the drying oven is bolted with a control box and a circuit breaker, and the control box contains a control circuit board. An infrared thermocouple is installed on the outside of the drying oven.

6. The water-based coating apparatus with low-temperature adaptability according to claim 1, characterized in that, The main body of the device includes a support frame, a drive roller, an auxiliary roller, a guide roller connected in the middle of the support frame, and a material receiving plate. A drive mechanism is installed on the outside of the support frame, and a drive motor is installed on the outside of the drive mechanism.

7. The water-based coating apparatus with low-temperature adaptability according to claim 6, characterized in that, The housing of the drive mechanism is made of aluminum-silicon alloy, and the drive motor is a rare-earth permanent magnet motor.

8. The water-based coating apparatus with low-temperature adaptability according to claim 1, characterized in that, The unwinding assembly includes an unwinding bracket and an unwinding roller connected in the middle of the unwinding bracket.

9. The water-based coating apparatus with low-temperature adaptability according to claim 1, characterized in that, The winding assembly includes a winding bracket, a winding roller installed in the middle of the winding bracket, and a winding motor installed on the outside of the winding bracket, wherein the winding motor is a rare earth permanent magnet motor.

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