Viscosity testing device for heat reflection coating

Abstract

The utility model provides a viscosity testing device for a heat reflection coating, relates to the technical field of coating processing equipment, and solves the problem of limited measuring range in the prior art by arranging a plurality of rotors to be correspondingly matched with rotating speed regulators with different rotating speed ranges. The device has the advantage of expanding the test range to adapt to heat-reflecting coatings with different viscosities.

Description

Technical Field

[0001] This utility model relates to the field of coating processing equipment technology, and in particular to a heat-reflective coating viscosity testing device. Background Technology

[0002] Paint, traditionally known as varnish, is a coating applied to the surface of an object to be protected or decorated, forming a continuous, firmly adhering film. It is typically a viscous liquid made primarily of resin, oil, or emulsion, with or without pigments and fillers, and appropriate additives, formulated with organic solvents or water. Heat-reflective coatings are mainly composed of acrylic emulsions, leveling agents, rutile titanium dioxide, dispersants, heavy calcium carbonate, bactericides and preservatives, borate glass microspheres, pH adjusters, rare earth metal oxides, cellulose thickeners, silicone defoamers, and water in a specific ratio. Heat-reflective coatings can regulate temperature under sunlight while also providing excellent waterproofing and seepage prevention. These self-cleaning, UV-resistant, anti-aging, acid and alkali resistant, and corrosion-resistant coatings are a new type of energy-saving, long-life coating.

[0003] Currently, there are various types of viscosity testing devices for heat-reflective coatings, but they all suffer from limited functionality. These include devices such as Zein cups, laboratory rotational viscometers, falling ball or piston viscometers, and vibration viscometers. The most significant problem with these devices is their limited measurement range, making them unsuitable for heat-reflective coatings with varying viscosity ranges. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a viscosity testing device for heat reflective coatings, so as to solve the technical problem that the viscosity testing devices in the prior art have limited range, which makes them unable to adapt to heat reflective coatings with different viscosity ranges.

[0005] To achieve the above objectives, this utility model provides a heat reflective coating viscosity testing device, including a base, a column, and a main unit. The column is vertically fixed on the base, and the main unit is fixed on the top of the column. A rotor is detachably provided below the main unit. The rotor includes multiple rotors, and the viscosity test is performed while the main unit drives the rotors to rotate.

[0006] The main unit is equipped with a speed regulator, and the different speed ranges of the speed regulator correspond to different rotors.

[0007] Optionally, the rotors include four rotors, and the speed regulator includes four speed settings, with each rotor corresponding to a speed regulator at each speed setting.

[0008] Optionally, the host computer also includes a torque detector, a torque processor, and a viscosity display, wherein the torque detector and the viscosity display are electrically connected to the torque processor.

[0009] Optionally, the torque detector detects the torque of the rotor and transmits the torque signal to the torque processor, which processes the torque signal into a viscosity signal and transmits it to the viscosity display, which displays the viscosity.

[0010] Optionally, the column is configured as a lifting column.

[0011] Optionally, the lifting column includes a fixed rod, a lifting rod, and a rotary handle. The fixed rod is fixedly mounted on the base, the lifting rod is movably mounted on the fixed rod relative to the fixed rod, the rotary handle is mounted on the lifting rod, and the main unit is mounted on the lifting rod.

[0012] Optionally, the lifting rod is a hollow columnar structure and the fixing rod is a solid columnar structure; or the lifting rod is a solid columnar structure and the fixing rod is a hollow columnar structure.

[0013] Optionally, the host computer is also equipped with a power adapter.

[0014] Optionally, a connecting rod is provided below the main unit, the main unit is connected to the connecting rod in a transmission connection, and the connecting rod is detachably connected to the rotor in a transmission connection.

[0015] Optionally, a chassis is provided below the main unit, and a protective frame for protecting the rotor is provided below the chassis.

[0016] The heat-reflective coating viscosity testing device provided by this utility model has the following technical effects:

[0017] This viscosity testing device solves the problem of limited measurement range in the prior art by setting up multiple rotors and matching them with speed regulators of different speed ranges. It has the advantage of expanding the testing range to adapt to heat reflective coatings of different viscosities. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of a preferred embodiment of the heat reflective coating viscosity testing device of this utility model;

[0020] Figure 2 yes Figure 1 Side view of the viscosity testing device for medium-heat reflective coatings;

[0021] Figure 3 yes Figure 1 Top view of the viscosity testing device for medium-heat reflective coatings.

[0022] in, Figures 1-3 :

[0023] 1. Base; 11. Casters;

[0024] 2. Column; 21. Fixing rod; 22. Lifting rod; 23. Tightening handle;

[0025] 3. Main unit; 31. Power adapter; 32. Connecting rod; 33. Chassis;

[0026] 4. Rotor; 41. Protective frame. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In existing technologies, viscosity testing devices for heat-reflective coatings have long faced the challenge of limited measurement range. Traditional testing instruments, such as rotational viscometers and Zein cups, typically employ a fixed rotor with a single rotational speed, resulting in a narrow testing range. When testing heat-reflective coatings of different viscosity grades, operators must frequently change equipment or manually adjust parameters, making the testing process cumbersome and inefficient.

[0029] To address the aforementioned issues, the inventors noted the wide viscosity range of heat-reflective coatings and realized that a single rotor 4 combined with a fixed rotational speed was insufficient to meet practical application requirements. By analyzing the principle of rotational viscosity testing, they discovered that the geometry of rotor 4 and its rotational speed parameters jointly influence the shear rate range, thereby determining the measurable viscosity interval. This led to the concept of systematically matching multiple rotors 4 with various rotational speeds, aiming to extend the measurement range through hardware integration.

[0030] Based on the above reasons, such as Figure 1-3As shown, this utility model proposes a viscosity testing device including a base 1, a column 2, and a main unit 3. The column 2 is vertically fixed on the base 1, and the main unit 3 is mounted on the top of the column 2. Multiple detachable rotors 4 are arranged below the main unit 3, and the main unit 3 drives the rotors 4 to rotate for viscosity testing. The main unit 3 integrates a speed regulator, with different speed ranges corresponding to different rotors 4.

[0031] like Figure 1 and Figure 2 As shown, the base 1 is the basic structure that supports the overall weight of the device. It can be made of metal casting or injection molded engineering plastics, providing a stable support platform for the column 2 and the main unit 3. Figure 3 As shown, the base 1 of this utility model is preferably a four-pronged type, but it can also be a three-pronged type. Universal wheels 11 are installed below the forks of the base 1.

[0032] The column 2 is a vertically extending support component, which can be a height-adjustable lifting structure to adapt the working height of the main unit 3.

[0033] The host unit 3 is the core drive control unit, which can be an integrated mechatronics device with a servo motor, which drives the rotor 4 to rotate through the transmission mechanism.

[0034] The rotor 4 is a test component that comes into contact with the coating. Specifically, it can adopt a cylindrical, disc-shaped, or conical geometric structure. Rotors 4 of different sizes can be quickly assembled and disassembled through snaps or threads. The preferred shape of this utility model is cylindrical.

[0035] The speed regulator is a motor control system. Specifically, it can be a multi-speed variable frequency speed control module. Different speeds correspond to specific speed ranges, and each speed range is adapted to the geometric parameters of a specific rotor 4.

[0036] Specifically, during operation, a matching rotor 4 is selected based on the viscosity range of the coating being tested, and the corresponding speed setting is selected via the speed regulator. The main unit 3 drives the selected rotor 4 to rotate at a preset speed, and the resistance of the coating to the rotor 4 generates a torque signal. This torque signal is detected, processed, and converted into a viscosity value, thereby enabling the testing of heat-reflective coatings of different viscosity grades. The combination and matching of multiple rotors 4 with multiple speed settings allows a single device to cover a wider viscosity measurement range.

[0037] Compared to existing technologies, traditional equipment can only change the measurement range by replacing the rotor 4 or adjusting the speed, while this invention forms a composite adjustment mechanism through the coordinated matching of the rotor 4 and the speed. For example, when using a large-size rotor 4, it is used with a low-speed setting, and when using a small-size rotor 4, it is used with a high-speed setting, thereby expanding the effective measurement range while ensuring measurement accuracy.

[0038] Through the above technical solution, this utility model can adapt to the testing requirements of heat-reflective coatings with different viscosity characteristics, avoid the operational burden caused by frequent changes of testing equipment, and significantly improve testing efficiency and equipment utilization. The systematic matching mechanism between rotor 4 and rotational speed effectively breaks through the range limitation of traditional devices, providing more comprehensive testing support for the quality control of heat-reflective coatings.

[0039] In addition, such as Figure 1 and Figure 2 As shown, a connecting rod 32 is located below the main unit 3. The main unit 3 is connected to the connecting rod 32 in a transmission manner, and the connecting rod 32 is detachably connected to the rotor 4 in a transmission manner. The connecting rod 32 is a rigid connecting component that connects the main unit 3 and the rotor 4. Specifically, it can be implemented using a cylindrical metal rod, and its diameter range can be adapted to the installation requirements of rotors 4 of different specifications.

[0040] Specifically, the output shaft of the main unit 3 is rigidly connected to the upper end of the connecting rod 32 via a coupling. The lower end of the connecting rod 32 has an internal thread, and the top of the rotor 4 has a corresponding external thread. During testing, the rotor 4 of a specific specification is installed onto the end of the connecting rod 32 by screwing. After the main unit 3 is started, the rotational torque is transmitted to the rotor 4 through the connecting rod 32, causing the rotor 4 to rotate in the paint sample and generate shear force. When the rotor 4 needs to be replaced, the original rotor 4 can be separated from the connecting rod 32 by screwing in the opposite direction. The threaded end of the replaced rotor 4 is then relocked to the connecting rod 32.

[0041] In some specific embodiments, a standardized flange interface can be provided at the end of the connecting rod 32, such as a hexagonal slot structure according to ISO standards. An adapter is provided at the top of the matching rotor 4, and quick locking and separation are achieved by a press-type spring pin.

[0042] To protect rotor 4, such as Figure 1 and Figure 2 As shown, a chassis 33 is also provided below the main unit 3, and a protective frame 41 for protecting the rotor 4 is provided below the chassis 33.

[0043] Specifically, the chassis 33 is rigidly connected to the base of the main unit 3, forming a test base and maintaining the rotor 4 in a horizontal position during operation. The protective frame 41 is installed at the bottom of the chassis 33 and remains closed when the equipment is idle or during transport. Its grid gaps allow airflow but effectively prevent external objects from contacting the rotor 4 surface. Before testing, the protective frame 41 is moved laterally along the slide rail or flipped upwards to fully expose the rotor 4 for viscosity measurement. This structure ensures testing accuracy while preventing a decrease in accuracy due to accidental collisions or environmental contaminants.

[0044] As one embodiment of this utility model, for example, the rotor 4 includes four rotors, and the speed regulator includes four speed settings, with each rotor 4 corresponding to each speed regulator setting.

[0045] It should be noted that this utility model does not limit the number of rotors 4 or the speed regulator settings.

[0046] Specifically, each of the four rotors 4 is paired with one of the four speed regulators, resulting in 16 possible combinations. For example, when testing low-viscosity coatings, a smaller diameter rotor 4 can be selected and paired with a low speed setting; when testing high-viscosity coatings, a larger diameter rotor 4 can be switched to a high speed setting. By adjusting the combination of rotors 4 and speed settings, the test parameters can be dynamically adjusted according to the coating viscosity, thus achieving multi-range coverage in a single device.

[0047] This utility model further proposes that the host 3 is also equipped with a torque detector, a torque processor and a viscosity display, and the torque detector and the viscosity display are electrically connected to the torque processor.

[0048] The torque detector is a sensor used to detect the torque signal generated when rotor 4 rotates. It can be implemented using a strain gauge sensor or a magnetoelectric sensor. Its function is to convert the mechanical torque into an electrical signal for subsequent processing. The torque processor is a computational module used to receive and process the torque signal. It can be implemented using an embedded microcontroller or a digital signal processor. Its function is to convert the torque signal into a corresponding viscosity value through an algorithm. The viscosity display is an output device used to display the viscosity value in real time. It can be implemented using an LCD screen or a digital tube display module. Its function is to present the processed viscosity data visually to the operator.

[0049] Specifically, as rotor 4 rotates in the coating, the torque detector collects the torque signal generated by the rotational resistance in real time and transmits this signal to the torque processor. The torque processor converts the received torque signal into a corresponding viscosity value based on a preset viscosity calculation model, and then synchronously outputs the processing result to the viscosity display. Thus, operators can directly read real-time viscosity test data without relying on external computing equipment.

[0050] Compared to existing technologies, traditional rotational viscometers typically only have a single signal acquisition module, requiring an external computer for data processing and display. This solution, however, integrates a torque processing and display unit, enabling online processing and real-time visualization of test data, avoiding signal distortion during data transmission, and simplifying the operation process.

[0051] Through the above technical solution, this utility model solves the problem of traditional viscosity testing devices relying on external equipment for data processing, realizes real-time acquisition, automatic conversion and intuitive display of test data, significantly improves the efficiency and accuracy of viscosity testing of heat reflective coatings, and is especially suitable for production or laboratory scenarios that require rapid acquisition of viscosity data.

[0052] like Figure 1 and Figure 2 As shown, this utility model further proposes that the column 2 be configured as a lifting column 2.

[0053] The lifting column 2 is an adjustable-height support structure. Specifically, it can adopt a nested structure of fixed rod 21 and lifting rod 22. The height can be adjusted by rotating the handle to drive the lifting rod 22 to move up and down. With the lifting column 2, the vertical position of the main unit 3 can be flexibly adjusted according to the testing requirements, thereby adapting to paint containers or testing environments of different volumes and solving the limitation of traditional fixed-height columns 2 in terms of operational flexibility.

[0054] Specifically, the lifting column 2 ensures stability by connecting to the base 1 via the fixed rod 21. The lifting rod 22 slides within the fixed rod 21 through a nested structure, and the lifting rod 22 is raised or lowered by turning the handle 23. When the test height needs to be adjusted, the operator rotates the handle 23, causing the lifting rod 22 to raise or lower the main unit 3 until the target position is reached. This structure allows the contact depth or distance between the rotor 4 and the paint sample to be adjusted according to actual needs. For example, when changing to a rotor 4 of different sizes or adapting to paints of different viscosities, there is no need to change equipment or perform complex adjustments.

[0055] In detail, the lifting column 2 includes a fixed rod 21, a lifting rod 22 and a rotary handle 23. The fixed rod 21 is fixedly mounted on the base 1, the lifting rod 22 is mounted on the fixed rod 21 in a way that allows it to be raised and lowered relative to the fixed rod 21, the rotary handle 23 is mounted on the lifting rod 22, and the main unit 3 is mounted on the lifting rod 22.

[0056] Specifically, when the test height needs to be adjusted, the handle 23 can be loosened to allow the lifting rod 22 to slide along the fixed rod 21 to the target position. Then, the handle is tightened to press the gap between the lifting rod 22 and the fixed rod 21, forming a rigid connection. The main unit 3 rises and falls synchronously with the lifting rod 22, allowing precise control of the contact depth or immersion angle between the rotor 4 and the tested coating. By adjusting the height of the lifting rod 22, rotors 4 of different sizes can be matched or the coating liquid level of different containers can be adapted, avoiding test errors or operational inconvenience caused by a fixed height.

[0057] More specifically, the lifting rod 22 is a hollow columnar structure, and the fixing rod 21 is a solid columnar structure; or the lifting rod 22 is a solid columnar structure, and the fixing rod 21 is a hollow columnar structure.

[0058] Specifically, when the lifting rod 22 adopts a hollow structure and the fixed rod 21 adopts a solid structure, the solid nature of the fixed rod 21 can provide a stable foundation support for the lifting rod 22, while the hollow structure of the lifting rod 22 can reduce the inertial load during the lifting and adjusting process, making height adjustment more convenient.

[0059] Conversely, if the lifting rod 22 is solid and the fixing rod 21 is hollow, the hollow design of the fixing rod 21 can reduce the overall weight of the device, while the solid structure of the lifting rod 22 can ensure the stability of the main unit 3 when rotating at high speed. Both combinations optimize the ease of operation and mechanical stability of the lifting system while ensuring load-bearing capacity through complementary structural designs.

[0060] like Figure 2 As shown, this utility model further proposes that the host 3 is also equipped with a power adapter 31. The power adapter 31 is a device that converts AC power into DC power, which can be implemented by an AC-DC conversion module to provide a stable power supply for the host 3.

[0061] Specifically, the main unit 3 can be directly connected to an external AC power source, such as mains power or generator output, via an integrated power adapter 31. The adapter converts the input AC power into DC power that matches the operating voltage of the main unit 3. Since the heat reflective coating viscosity testing device needs to operate in different environments, such as laboratories or industrial sites, the power adapter 31 can adapt to power supply conditions with a wide voltage fluctuation range, avoiding abnormal operation of the main unit 3 or interruption of data acquisition due to voltage instability, thereby ensuring the stability of the viscosity testing process.

[0062] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] In the description of this utility model, it should also be noted that, unless otherwise explicitly 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for testing the viscosity of heat-reflective coatings, characterized in that, The device includes a base, a column, and a main unit. The column is vertically fixed on the base, and the main unit is fixed on the top of the column. A rotor is detachably provided below the main unit. The rotor includes multiple rotors. Viscosity testing is performed while the main unit drives the rotors to rotate. The main unit is equipped with a speed regulator, and the different speed ranges of the speed regulator correspond to different rotors.

2. The heat-reflective coating viscosity testing device according to claim 1, characterized in that, The rotors include four, and the speed regulator includes four speed settings, with each rotor corresponding to a speed regulator at each speed setting.

3. The heat-reflective coating viscosity testing device according to claim 1, characterized in that, The host also includes a torque detector, a torque processor, and a viscosity display. The torque detector and the viscosity display are electrically connected to the torque processor.

4. The heat-reflective coating viscosity testing device according to claim 3, characterized in that, The torque detector detects the torque of the rotor and transmits the torque signal to the torque processor. The torque processor processes the torque signal into a viscosity signal and transmits it to the viscosity display, which displays the viscosity.

5. The heat reflective coating viscosity testing device according to any one of claims 1-4, characterized in that, The column is designed to be a lifting column.

6. The heat-reflective coating viscosity testing device according to claim 5, characterized in that, The lifting column includes a fixed rod, a lifting rod, and a rotary handle. The fixed rod is fixedly mounted on the base. The lifting rod is movably mounted on the fixed rod relative to the fixed rod. The rotary handle is mounted on the lifting rod. The main unit is mounted on the lifting rod.

7. The heat-reflective coating viscosity testing device according to claim 6, characterized in that, The lifting rod is a hollow columnar structure, and the fixing rod is a solid columnar structure; or the lifting rod is a solid columnar structure, and the fixing rod is a hollow columnar structure.

8. The heat-reflective coating viscosity testing device according to claim 1, characterized in that, The host is also equipped with a power adapter.

9. The heat-reflective coating viscosity testing device according to claim 1, characterized in that, A connecting rod is provided below the main unit, the main unit is connected to the connecting rod in a transmission manner, and the connecting rod is detachably connected to the rotor in a transmission manner.

10. The heat-reflective coating viscosity testing device according to claim 1, characterized in that, The main unit is also provided with a chassis below it, and a protective frame for protecting the rotor is provided below the chassis.

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