An acrylic emulsion low-temperature film-forming property test box

Abstract

The utility model discloses a kind of acrylic emulsion low-temperature film-forming property test box, including test box body, further include: triangular bottom groove, it is set on test box body;Strut, it is hingedly arranged on the triangle of triangular bottom groove;Ring groove is set on each strut;Limiting disc, it is provided with the bottom groove mouth of each ring groove clamping cooperation.The acrylic emulsion low-temperature film-forming property test box provided by the utility model, limiting disc is clamped cooperation with ring groove by bottom groove mouth, at this time metal net rack is installed on test box body and the top of limiting disc abutting cooperation, the device is supported by limiting disc on each strut to metal net rack, the contact area of support is increased by limiting disc, improve the support strength of metal net rack, secondly, the strut distributed on the triangle of triangular bottom groove is conveniently stored after rotating, when not needing to use support structure, strut is rotated and stored, save the space in test box, improve space utilization.

Description

Technical Field

[0001] This utility model relates to the field of acrylic emulsion technology, and more specifically to a low-temperature film-forming property test chamber for acrylic emulsions. Background Technology

[0002] As is well known, the acrylic emulsion low-temperature film-forming test chamber is an experimental device specifically designed to evaluate the film-forming performance of acrylic emulsions in low-temperature environments. It simulates the film-forming process of acrylic emulsions in actual low-temperature application scenarios by precisely controlling environmental conditions such as temperature and humidity. The test chamber consists of a chamber body, a refrigeration system, a temperature control and display system, and a humidity control system.

[0003] The steps for testing the low-temperature film-forming properties of acrylic emulsion are as follows: First, apply the acrylic emulsion to the iron plate substrate as required. Then, place the coated substrate into the acrylic emulsion low-temperature film-forming property test chamber and place it under the set low-temperature conditions for a sufficient period of time. After removal, observe whether the coating shows defects such as cracking and peeling to determine whether the low-temperature film-forming properties of the acrylic emulsion meet the requirements.

[0004] During testing of the aforementioned iron plate substrate coated with acrylic emulsion, if the substrate is large and heavy, the supporting strength of the metal mesh frame is usually insufficient, resulting in local deformation of the metal mesh frame. This causes the iron plate substrate to be placed unstable on the metal mesh frame, and the emulsion flows to the tilted side under the action of gravity. As a result, the emulsion that was originally evenly coated on the iron plate will gradually accumulate on the tilted side, causing the emulsion thickness to increase on one side and the emulsion thickness to decrease on the other side. This uneven emulsion coating distribution affects the film quality. Utility Model Content

[0005] In view of the above-mentioned problems in the prior art, one objective of this utility model is to provide a low-temperature film-forming property test chamber for acrylic emulsions to solve the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides a low-temperature film-forming property test chamber for acrylic emulsions, comprising a test chamber body and further comprising: a triangular bottom groove formed on the test chamber body; a support column hinged to the triangle of the triangular bottom groove; each support column having an annular groove; and a limiting plate having a bottom groove opening that engages with each annular groove; when each support column rotates to a vertical position, each annular groove engages with each bottom groove opening, so that the limiting plate abuts against the metal mesh frame.

[0007] Preferably, each of the triangles of the triangular base groove is provided with a groove, and each of the support columns is located on each of the grooves.

[0008] Preferably, each of the aforementioned pillars has an overall rectangular structure.

[0009] Preferably, each of the annular grooves is an arc-shaped structure, and the annular groove is adapted to each of the bottom groove openings.

[0010] Preferably, the metal grid frame consists of a frame and a plurality of cross columns connected to the frame.

[0011] Preferably, the test chamber body is provided with a working cavity.

[0012] Preferably, the working cavity is provided with a base opposite to it, and each base is provided with a groove.

[0013] Preferably, the groove is a U-shaped structure that engages with the frame.

[0014] Preferably, the limiting disk is a circular structure that contacts each of the horizontal columns.

[0015] Preferably, the test chamber body is equipped with a door, indicator lights, and an operation screen.

[0016] In the above technical solution, the acrylic emulsion low-temperature film-forming property test chamber provided by this utility model has the following beneficial effects: Before placing a large and heavy substrate into the test chamber body, the supports are first rotated to a vertical position, and then the limiting plate is engaged with the annular groove through the bottom groove. At this time, the metal mesh frame is installed on the test chamber body and abuts against the top of the limiting plate. Figure 3 As shown in the diagram, the device supports the metal mesh frame through limiting plates on each support column. The limiting plates increase the contact area of ​​the support, thereby improving the support strength of the metal mesh frame. Secondly, the supports distributed on the triangular base grooves are easy to rotate and store. When the support structure is not needed, the supports can be rotated and folded up, saving space in the test chamber, improving space utilization, and reducing or even avoiding the situation where the metal mesh frame is not strong enough due to the large size and weight of the substrate, which may cause local deformation of the metal mesh frame. This results in the iron plate substrate being placed unstable on the metal mesh frame, uneven emulsion coating, and affects the film quality. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partially enlarged structural diagram of the base of this utility model; Figure 3 This is a partially enlarged structural diagram of the limiting disc and metal mesh frame of this utility model; Figure 4 This is a partially enlarged structural diagram of the support column before its implementation.

[0019] Explanation of reference numerals in the attached figures: 1. Test chamber body; 2. Chamber door; 3. Metal mesh frame; 4. Limiting plate; 5. Support column; 1.1. Operation panel; 1.2. Indicator light; 1.3. Working chamber; 1.4. Base; 1.5. Groove; 1.6. Triangular bottom groove; 3.1. Horizontal column; 4.1. Bottom groove opening; 5.1. Circular groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 A low-temperature film-forming test chamber for acrylic emulsion is provided to address the issue that, during testing of iron plate substrates coated with acrylic emulsion, if the substrate is large or heavy, the supporting strength of the metal mesh frame is often insufficient, leading to localized deformation of the metal mesh frame. This results in the iron plate substrate being placed unstable on the metal mesh frame, and the emulsion flowing to one side under gravity. Consequently, the emulsion, which was originally evenly applied to the iron plate, gradually accumulates on the tilted side, causing the emulsion thickness to increase on one side and decrease on the other, resulting in uneven emulsion distribution and affecting film quality.

[0022] As a further technical solution proposed in this utility model, the test chamber body 1 includes: a triangular bottom groove 1.6, which is formed on the test chamber body 1; a support column 5, which is hinged to the triangle of the triangular bottom groove 1.6; each support column 5 is provided with an annular groove 5.1; a limiting plate 4, which is provided with a bottom groove opening 4.1 that engages with each annular groove 5.1; when each support column 5 is rotated to a vertical position, each annular groove 5.1 engages with each bottom groove opening 4.1, so that the limiting plate 4 abuts against the metal mesh frame 3. Specifically, before placing a large and heavy substrate into the test chamber body 1, each support column 5 is first rotated to a vertical position, and then the limiting plate 4 is engaged with the annular groove 5.1 through the bottom groove opening 4.1. At this time, the metal mesh frame 3 is then installed on the test chamber body 1 and abuts against the top of the limiting plate 4. Figure 3As shown in the diagram, the device supports the metal mesh frame 3 through the limiting discs 4 set on each support column 5. The limiting discs 4 increase the contact area of ​​the support and improve the support strength of the metal mesh frame 3. Secondly, the support columns 5 distributed on the triangular base groove 1.6 are easy to rotate and store. When the support structure is not needed, the support columns 5 can be rotated and folded up, saving space in the test box, improving space utilization, and reducing or even avoiding the situation where the support strength of the metal mesh frame is insufficient due to the large size and weight of the substrate, resulting in local deformation of the metal mesh frame. This leads to the iron plate substrate being placed unstable on the metal mesh frame, uneven distribution of emulsion coating, and affecting the film quality.

[0023] In this embodiment, the metal mesh frame 3 is specifically a parallel strip metal mesh frame 3. The area of ​​the limiting plate 4 is the area supporting the metal mesh frame 3. The specific diameter and length of the limiting plate 4 are set according to the needs of those skilled in the art. The triangular groove 1.6 after being opened is adapted to the triangular point of the circular edge of the limiting plate 4 (so that when the support column 5 is rotated to the vertical state, each support column 5 can accurately connect with the limiting plate 4, making the limiting of the support column 5 more accurate and stable, and enabling the support force to be transmitted more evenly). When the support column 5 is in the vertical state, the support column 5 abuts against the inner wall of the hinged groove, thereby limiting the hinged rotation angle of the support column 5, so that the maximum hinged rotation angle of the support column 5 is 90° (when testing a lighter substrate, the unimplemented support column 5 is initially in a parallel state, such as...). Figure 4 As shown in the diagram, each support column 5 is housed within the triangular base groove 1.6 (to improve space utilization), ensuring that the support column 5 remains stable and vertical when supporting the metal grid frame 3.

[0024] In another embodiment of this utility model, grooves are provided on the triangles of the triangular bottom groove 1.6, and each support column 5 is located on each groove. Further, the number of grooves provided on the triangles of the triangular bottom groove 1.6 is specifically three, and the number of support columns 5 corresponds to the number of grooves. Preferably, each support column 5 has a rectangular structure. The support column with a rectangular cross section has better bending resistance when subjected to pressure in the vertical direction (support direction). Its cross section has a larger moment of inertia and can more effectively resist bending deformation caused by external forces, thereby providing more stable and reliable support for the metal grid frame 3.

[0025] In another embodiment of this utility model, each annular groove 5.1 is specifically an arc-shaped structure, and the annular groove 5.1 is adapted to each bottom groove opening 4.1 (when bearing the weight of the metal mesh frame 3 and the substrate it carries, the arc-shaped connection structure can more evenly distribute the stress and avoid stress concentration at local locations of the connection point). Furthermore, the adaptation of the arc-shaped annular groove 5.1 to the bottom groove opening 4.1 can achieve a tighter fit when the support column 5 is connected to the limiting plate 4. The arc-shaped fit can minimize the gap between the two and avoid shaking caused by loosening of the connection part when supporting the metal mesh frame 3, thereby ensuring that the metal mesh frame 3 remains stable during the test after the substrate is placed, and avoiding uneven distribution of acrylic emulsion due to substrate shaking.

[0026] In another embodiment of this utility model, the metal mesh frame 3 consists of a frame and multiple horizontal columns 3.1 connected to the frame. The limiting disk 4 is specifically a circular structure that contacts each horizontal column 3.1. The circular surface of the disk has no stress concentration points, allowing the vertical support force of the support column 5 to be evenly distributed across the entire disk surface. This force is then transferred to the multiple horizontal columns 3.1 of the metal mesh frame 3, ensuring that the force on the multiple horizontal columns 3.1 is evenly distributed across the disk surface, preventing individual horizontal columns 3.1 from bending and deforming due to excessive force. Furthermore, as... Figure 2 As shown, multiple horizontal columns 3.1 are distributed in parallel within the frame (e.g., with a spacing of 15-20cm), and the specific spacing between each horizontal column 3.1 is set according to the needs of those skilled in the art. The weight of the base material (iron plate) is evenly distributed on each horizontal column 3.1.

[0027] In another embodiment of this utility model, a working chamber 1.3 is provided on the test chamber body 1, and a base 1.4 is arranged opposite to it on the working chamber 1.3. Each base 1.4 has a groove 1.5, which is specifically a U-shaped structure that engages with the frame. Furthermore, the U-shaped groove 1.5 of the base 1.4 engages with the frame of the metal mesh frame 3, such as... Figure 2 As shown in the diagram, the opening of the U-shaped groove 1.5 faces upwards. The frame of the metal mesh frame 3 can be inserted simply by aligning it with the opening of the groove 1.5 from above. The curved corners of the structural connections on the frame abut against the groove 1.5, thereby limiting the length of the frame (the length direction of the base 1.4). When disassembling the metal mesh frame 3, first lift the metal mesh frame 3 upwards, and the frame can be directly removed from the U-shaped groove to complete the disassembly. The snap-fit ​​method improves the ease of operation for installation and disassembly.

[0028] In another embodiment of this utility model, the test chamber body 1 is provided with a door 2, an indicator light 1.2, and an operation screen 1.1. Further, as... Figure 1As shown in the status diagram, the door 2 is the core component of the closed working chamber 1.3 of the test chamber body 1, which is used for sample handling and safety protection. The indicator light 1.2 is a signal for real-time monitoring of the status of the test chamber body 1. It allows the operator to judge whether the equipment is operating normally through different color flashing patterns. The operation screen 1.1 is used to set and adjust core test parameters and record and store test data through a touch design. It is existing technology and will not be described in detail.

[0029] 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 low-temperature film-forming property test chamber for acrylic emulsions, comprising a test chamber body (1), characterized in that, Also includes: A triangular bottom groove (1.6) is formed on the test box body (1); The support column (5) is hinged to the triangle of the triangular bottom groove (1.6); Each of the aforementioned support columns (5) is provided with an annular groove (5.1); The limiting plate (4) is provided with a bottom groove (4.1) that engages with each of the aforementioned annular grooves (5.1). When each of the pillars (5) rotates to a vertical position, each of the annular grooves (5.1) engages with each of the bottom groove openings (4.1) so that the limiting plate (4) abuts against the metal mesh frame (3).

2. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 1, characterized in that, The triangular bottom groove (1.6) has grooves on its triangles, and each of the pillars (5) is located on each of the grooves.

3. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 2, characterized in that, Each of the aforementioned pillars (5) has a rectangular structure.

4. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 1, characterized in that, Each of the aforementioned annular grooves (5.1) is specifically an arc-shaped structure, and the annular grooves (5.1) are adapted to each of the aforementioned bottom groove openings (4.1).

5. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 1, characterized in that, The metal mesh frame (3) consists of a frame and a plurality of horizontal columns (3.1) connected to the frame.

6. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 5, characterized in that, The test chamber body (1) is provided with a working cavity (1.3).

7. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 6, characterized in that, The working chamber (1.3) is provided with bases (1.4) opposite to each other, and each base (1.4) is provided with a groove (1.5).

8. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 7, characterized in that, The groove (1.5) is specifically a U-shaped structure, which is snapped into the frame.

9. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 8, characterized in that, The limiting disk (4) is specifically a disc structure, which is in contact with each of the horizontal columns (3.1).

10. The low-temperature film-forming property test chamber for acrylic emulsions according to claim 1, characterized in that, The test chamber body (1) is equipped with a door (2), an indicator light (1.2), and an operation screen (1.1).

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