Detection device for coating thickener gel particles

Abstract

The utility model discloses a coating thickening agent gel particle detection device which comprises an LED (light-emitting diode) back plate, a sample placing area is formed at the upper part of the front surface of the LED back plate, and a coating thickening agent to be detected is placed in the sample placing area; the metal scraping plate is connected with the LED back plate in a sliding manner and can horizontally move along the front surface of the LED back plate; an observation area is arranged in the center of the LED back plate, and the LED back plate is electrically connected with an external power supply through the connected adjustable stepless speed change power supply jack so as to adjust the brightness of the observation area; the metal scraper moves along the surface of the LED back plate to coat the observation area with a to-be-detected coating thickening agent in the sample placement area, and the number of gel particles is observed according to different light transmittance of the coating thickening agent and the gel particles. The detection device can quickly, conveniently and accurately judge the number of the coating thickening agent gel particles, is simple and novel in structure and convenient to operate, is not influenced by human and external factors, and ensures that the detection result is accurate.

Description

Technical Field

[0001] This utility model relates to the field of detection and evaluation technology of paint thickeners, and in particular to a detection device for paint thickener gel particles. Background Technology

[0002] Thickeners are essential additives in coatings, improving storage stability and flowability, and enhancing application performance. Most coating thickeners are modified cellulose ethers or other natural modified polysaccharide polymers. Due to variations in pretreatment and etherification processes, thickener products often contain a certain degree of gel particles. If these gel particles appear in the finished paint film, stress concentration at these points can lead to film cracking and other quality issues.

[0003] Gel particles are an important indicator for paint thickeners, but there is no unified testing method in the industry. Users typically use a wet film preparation device to coat the thickener solution onto a glass plate or polyethylene film and then observe and count the number of gel particles. However, due to the complexity of the operation and variations in coating thickness, lighting conditions, and angles, the evaluation results can differ significantly.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a detection device for coating thickener gel particles. Utility Model Content

[0005] The purpose of this invention is to provide a detection device for coating thickener gel particles. This detection device can quickly, conveniently, and accurately determine the number of coating thickener gel particles. It has a simple and novel structure, is easy to operate, is not affected by human factors or external factors, and ensures accurate detection results.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a detection device for gel particles in coating thickeners, the detection device comprising:

[0008] LED backplate, wherein a sample placement area is formed on the upper part of the front side of the LED backplate, and the thickener of the coating to be tested is placed in the sample placement area;

[0009] A metal scraper that is slidably connected to the LED backplate and can move horizontally along the front of the LED backplate;

[0010] The LED backplate has an observation area at its center, and the LED backplate is electrically connected to an external power source via an adjustable stepless speed power socket to adjust the brightness of the observation area.

[0011] The metal scraper moves along the surface of the LED backplate to apply the thickener of the coating to be tested from the sample placement area to the observation area, and observes the number of gel particles by the difference in light transmittance between the coating thickener and the gel particles.

[0012] Furthermore, the observation area is configured as a nine-square grid observation area consisting of nine square grid regions;

[0013] The square grid area of ​​the nine-square observation area has a red and blue border.

[0014] Furthermore, the sample placement area is located above the observation area and on the side close to the upper end of the LED backplate;

[0015] The metal scraper can move from the upper side of the LED backplate to the lower side of the LED backplate and apply the thickener of the coating to be tested in the sample placement area to the observation area.

[0016] Furthermore, slide rails are provided on both sides of the LED backplate in the width direction, and the two slide rails are symmetrically arranged on both sides of the observation area and the sample placement area;

[0017] The lower parts of both ends of the metal scraper are embedded in the slide rail and slidably connected to the slide rail.

[0018] Furthermore, a certain coating gap is reserved between the coating surface of the metal scraper and the surface of the LED backplate;

[0019] The width of the coating gap is 100 μm.

[0020] In the above technical solution, the detection device for coating thickener gel particles provided by this utility model has the following beneficial effects:

[0021] The detection device of this invention can quickly, conveniently and accurately determine the number of gel particles in paint thickeners. It has a simple and novel structure, is easy to operate, is not affected by human factors or external factors, and ensures accurate detection results. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the structure of the detection device for coating thickener gel particles disclosed in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the adjustable continuously variable power socket of the detection device for coating thickener gel particles disclosed in this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. LED backplate; 2. Metal scraper; 3. Sample placement area; 4. Observation area; 5. Slide rail; 6. Adjustable stepless speed power socket;

[0027] 201. Scraping the surface. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] See Figures 1 to 2 As shown;

[0030] This embodiment discloses a device for detecting gel particles in coating thickeners, the device comprising:

[0031] LED backplate 1, a sample placement area 3 is formed on the upper part of the front of LED backplate 1, and the thickener of the coating to be tested is placed in the sample placement area 3.

[0032] A metal scraper 2 that is slidably connected to the LED backplate 1 and can move horizontally along the front of the LED backplate 1;

[0033] The LED backplate 1 has an observation area 4 at its center, and the LED backplate 1 is electrically connected to an external power supply through an adjustable stepless speed power socket 6 to adjust the brightness of the observation area 4.

[0034] The metal scraper 2 moves along the surface of the LED backplate 1 to apply the thickener of the coating to be tested in the sample placement area 3 to the observation area 4, and observes the number of gel particles by the difference in light transmittance between the coating thickener and the gel particles.

[0035] Specifically, this embodiment discloses a detection device suitable for detecting gel particles of paint thickeners, which mainly includes an LED backplate 1 and a metal scraper 2. The LED backplate 1 is divided into a sample placement area 3 and an observation area 4. The paint thickener to be detected is placed in the sample placement area 3, and the paint thickener is coated on the LED backplate 1 by the metal scraper 2, which can move along the LED backplate 1. Some of the paint thickener is scraped into the observation area 4 of the LED backplate 1, and the position and quantity of gel particles are displayed by the backlight of the LED backplate 1 according to the different light transmittance of the paint thickener and gel particles.

[0036] Preferably, in this embodiment, the observation area is configured as a nine-square grid observation area consisting of nine square grid regions; wherein the borders of the square grid regions in the nine-square grid observation area are red and blue borders. See also Figure 2 As shown, this embodiment designs an adjustable stepless speed power socket 6 for the LED back panel 1, which is electrically connected to it. By connecting the power supply through the adjustable stepless speed power socket 6, the brightness of the LED back panel 1 can be adjusted according to different lighting conditions and environments, making it more widely applicable.

[0037] Preferably, in this embodiment, the sample placement area 3 is located above the observation area 4 and on the side close to the upper end of the LED backplate 1;

[0038] The metal scraper 2 can move from the upper side of the LED backplate 1 to the lower side of the LED backplate 1 and apply the thickener of the coating to be tested in the sample placement area 3 to the observation area 4.

[0039] In this embodiment, slide rails 5 are provided on both sides of the LED backplate 1 in the width direction, and the two slide rails 5 are symmetrically arranged on both sides of the observation area 4 and the sample placement area 3.

[0040] The lower parts of both ends of the metal scraper 2 are embedded in the slide rail 5 and are slidably connected to the slide rail 5.

[0041] In order to achieve a coating of a specified thickness, a certain coating gap is reserved between the coating surface 201 of the metal scraper 2 and the surface of the LED backplate 1 in this embodiment; the width of the coating gap is 100μm.

[0042] This embodiment further defines the sliding connection structure between the metal scraper 2 and the LED backplate 1, as well as the positional relationship between the metal scraper 2 and the LED backplate 1 according to the coating thickness requirements. This embodiment designs a slide rail 5 for the metal scraper 2. The sliding connection structure between the metal scraper 2 and the slide rail 5 is not unique; it can be a sliding connection using a slider, or the lower ends of both ends of the metal scraper 2 can be protruded to form a slider. Therefore, this application does not specifically limit how the two achieve the sliding connection. The specific requirement is that, to ensure the coating thickness meets the requirements, the coating gap between the coating surface 201 of the metal scraper 2 and the LED backplate 1 is 100 μm.

[0043] The detection device in this embodiment utilizes the significant difference in light transmittance between the thickener and gel particles in the coating to be tested. Illumination with a light source makes insoluble particles easily identifiable, facilitating rapid and convenient determination of the number of gel particles in the observation area. The LED backplate 1 in this embodiment uses a parallel surface light source and has an adjustable stepless speed power socket 6 for adjusting the brightness of the LED backplate 1, making it suitable for different lighting conditions. The adjustable stepless speed power socket 6 is beneficial for observation under relatively dark conditions, and the nine-square observation area ensures that the observed area is the same, allowing for comparison of the number of gel particles in different thickener solutions under the same conditions.

[0044] In the above technical solution, the detection device for coating thickener gel particles provided by this utility model has the following beneficial effects:

[0045] The detection device of this invention can quickly, conveniently and accurately determine the number of gel particles in paint thickeners. It has a simple and novel structure, is easy to operate, is not affected by human factors or external factors, and ensures accurate detection results.

[0046] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for detecting gel particles in paint thickeners, characterized in that, The detection device includes: LED backplate (1), a sample placement area (3) is formed on the upper part of the front side of the LED backplate (1), and the thickener of the coating to be tested is placed in the sample placement area (3); A metal scraper (2) that is slidably connected to the LED backplate (1) and can move horizontally along the front of the LED backplate (1); The LED backplate (1) has an observation area (4) at its center, and the LED backplate (1) is electrically connected to an external power supply through an adjustable stepless speed power socket (6) to adjust the brightness of the observation area (4). The metal scraper (2) applies the paint thickener to be tested from the sample placement area (3) to the observation area (4) by moving along the surface of the LED backplate (1), and observes the number of gel particles by the difference in light transmittance between the paint thickener and the gel particles.

2. The detection device for coating thickener gel particles according to claim 1, characterized in that, The observation area (4) is configured as a nine-square grid observation area consisting of nine square grid regions; The square grid area of ​​the nine-square observation area has a red and blue border.

3. The detection device for coating thickener gel particles according to claim 2, characterized in that, The sample placement area (3) is located above the observation area (4) and on the side close to the upper end of the LED backplate (1); The metal scraper (2) can move from the upper side of the LED backplate (1) to the lower side of the LED backplate (1) and apply the thickener of the coating to be tested in the sample placement area (3) to the observation area (4).

4. The detection device for coating thickener gel particles according to claim 3, characterized in that, The LED backplate (1) is provided with slide rails (5) on both sides in the width direction. The two slide rails (5) are symmetrically arranged on both sides of the observation area (4) and the sample placement area (3). The lower parts of both ends of the metal scraper (2) are embedded in the slide rail (5) and are slidably connected to the slide rail (5).

5. The detection device for coating thickener gel particles according to claim 4, characterized in that, A certain coating gap is reserved between the coating surface (201) of the metal scraper (2) and the surface of the LED backplate (1); The width of the coating gap is 100 μm.

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