A hot mechanical analyzer test front glue mold

Abstract

The utility model provides a kind of hot mechanical analyzer tests before glue mould, belong to glue mould technical field, including mould main part;Positioning assembly is located at the top of the mould main part;And be located at the position of the upper portion of the mould main part's coating thickness adjusting assembly;Push sample component is located at the bottom of the mould main part;Wherein, the positioning assembly includes: two positioning side plates are symmetrically located at the top of the mould main part;Positioning groove is opened on the outer wall on one side of the positioning side plate;The utility model can control the position error of sample in mould within ±0.1mm by the accurate cooperation of positioning assembly, greatly improve the accuracy of glue position, ensure the reliability of TMA test result, the accurate control of adhesive coating thickness can be realized by coating thickness adjusting assembly, and thickness error can be controlled within ±0.1mm range, effectively solve the problem of uneven glue thickness in prior art.

Description

Technical Field

[0001] This utility model belongs to the field of glue filling mold technology, specifically relating to a glue filling mold for testing with a thermomechanical analyzer. Background Technology

[0002] Thermomechanical analysis (TMA) technology, as a key analytical tool in the field of materials science, plays an important role in studying the thermal expansion, contraction, and softening properties of materials. With the continuous growth of material research and development needs, higher requirements are placed on the testing accuracy and efficiency of thermomechanical analyzers (TMA). In TMA testing, sample preparation is one of the key steps affecting the accuracy of test results. In the adhesive loading stage before TMA testing, the performance of the loading mold directly affects the coating effect of the adhesive and the fixation quality of the sample. Currently, the design and manufacturing level of molds in this field varies, and some molds have problems such as unreasonable structure and inconvenient operation, which affect the overall efficiency and accuracy of TMA testing.

[0003] Currently, in the pre-testing adhesive application process for TMA testing, the commonly used molds are mostly simple cuboid structures. The adhesive is applied to the sample manually. These molds typically lack specialized positioning structures and adjustment devices (the structure of commonly used molds is shown in the instruction manual). Figure 6 As shown in the image, the position and thickness of the adhesive application mainly rely on the operator's experience, which leads to the following problems:

[0004] 1. Inaccurate glue application position: Due to the lack of an effective positioning structure, operators have difficulty accurately controlling the position when applying adhesive, resulting in unstable sample fixation and affecting the accuracy of TMA test results;

[0005] 2. Uneven glue thickness: Mold assembly requires manual tightening of screws, which relies entirely on the operator's feel and experience, and is prone to inconsistent thickness, thus affecting the reliability of test data;

[0006] 3. Low operational efficiency: Manual operation is not only time-consuming and labor-intensive, but also makes it difficult to ensure the consistency and repeatability of glue application, which reduces the overall efficiency of TMA testing.

[0007] Therefore, a thermomechanical analyzer is proposed to test the pre-filled mold. Summary of the Invention

[0008] This invention provides a pre-loading mold for a thermomechanical analyzer, the purpose of which is to solve the problems mentioned above.

[0009] This utility model provides a pre-filling mold for a thermomechanical analyzer, including a mold body; a positioning component located on the top of the mold body; a coating thickness adjustment component located above the mold body; and a sample ejection component located at the bottom of the mold body. The positioning component includes two symmetrically positioned side plates on the top of the mold body; and a positioning groove on one outer wall of the side plates. The coating thickness adjustment component includes a pressure plate located above the mold body; an anti-overflow baffle symmetrically extending through the top of the pressure plate; a top block located on the top of the anti-overflow baffle; and a spring located between the bottom of the top block and the top of the pressure plate. The sample ejection component includes a base located below the mold body; an electric push rod located on the top of the base, the output end of which is fixedly connected to the bottom of the mold body; a top plate embedded on the top of the base; a top hole located on the top of the mold body near the outer side of the top plate; a sample located between the two positioning side plates; and positioning blocks symmetrically located on the outer wall of the sample.

[0010] Furthermore, positioning holes are provided on the top of both the mold body and the positioning side plate, and positioning pins are connected inside the positioning holes.

[0011] Furthermore, four guide pillars are symmetrically arranged on the top of the mold body, and four guide blocks are symmetrically arranged on the outer side wall of the pressure plate. The guide pillars pass through the positioning side plate and the guide blocks.

[0012] Furthermore, a drive connection platform is provided at the top center of the pressure plate, and the top of the drive connection platform is fixedly connected to the output end of the external lifting drive mechanism.

[0013] Furthermore, the positioning groove and the positioning block are matched and fit together.

[0014] Furthermore, the top of the top plate and the top of the mold body are on the same horizontal plane, and the outer side wall of the top plate and the inner side wall of the top hole are in contact.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention, through the precise matching of positioning components, allows the positional error of the sample in the mold to be controlled within ±0.1mm, greatly improving the accuracy of the glue application position and ensuring the reliability of TMA test results. The coating thickness adjustment component enables precise control of the adhesive coating thickness, with a thickness error controllable within ±0.1mm, effectively solving the problem of uneven glue thickness in existing technologies. The optimized mold structure and operation method make the glue application process simpler and faster, increasing operator efficiency by more than 30%, while ensuring consistency and repeatability of the glue application.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the mold according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the sample component structure of an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the coating thickness adjustment component structure according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the sample structure according to an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a mold structure commonly used for pre-loading adhesive in traditional TMA testing;

[0025] Reference numerals: 1. Mold body; 2. Positioning component; 21. Positioning side plate; 22. Positioning groove; 23. Positioning pin; 24. Positioning hole; 3. Coating thickness adjustment component; 31. Guide post; 32. Pressure plate; 33. Guide block; 34. Anti-overflow baffle; 35. Top block; 36. Spring; 37. Drive connecting platform; 4. Sample ejection component; 41. Electric push rod; 42. Top plate; 43. Top hole; 44. Base; 5. Sample; 6. Positioning block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Reference Figures 1-3 This utility model embodiment proposes a pre-testing mold for a thermomechanical analyzer, including a mold body 1. The mold body 1 is rectangular in shape and is made of high-quality steel, which has good strength and wear resistance. The shape and size of the mold body 1 are designed according to the requirements of TMA testing to ensure compatibility with the testing instrument. Two positioning side plates 21 from the positioning assembly 2 are symmetrically arranged on the top of the mold body 1. Positioning grooves 22 are opened on the outer wall of the opposite side of the two positioning side plates 21. The positioning side plates 21 have an L-shaped structure. The top of the mold body 1 and the positioning side plates 21 are both provided with through positioning holes 24. Positioning pins 23 are pinned inside the positioning holes 24. The positioning pins 23 and the positioning holes 24 cooperate with each other to accurately determine the position of the sample 5 in the mold. The positioning pins 23 are manufactured using high-precision machining technology to ensure the accuracy of positioning.

[0028] To ensure precise positioning of sample 5 when placed in the mold, two L-shaped positioning side plates 21 are symmetrically placed on the top of the mold body 1. When the positioning holes 24 on the mold body 1 and the positioning side plates 21 coincide, the positioning pin 23 is passed through the positioning holes 24 to fix the mold body 1 and the positioning side plates 21. After the installation of the positioning assembly 2 is completed, sample 5 is placed on the top of the mold body 1 and between the two positioning side plates 21. The positioning block 6, which protrudes outward from the outer wall of sample 5, is inserted into the positioning groove 22 to achieve rapid positioning of sample 5. This solves the problem of inaccurate glue application position, ensures that the adhesive can be accurately applied to the designated position of sample 5, and ensures the stability of position and coating accuracy when applying adhesive later.

[0029] Reference Figure 1 and Figure 4 The top of the mold body 1 is symmetrically provided with four guide pillars 31 of the coating thickness adjustment component 3, and a pressure plate 32 is provided at the top of the mold body 1. Four guide blocks 33 are symmetrically provided on the outer side wall of the pressure plate 32. The guide pillars 31 pass through the guide blocks 33. Two anti-overflow baffles 34 are symmetrically provided at the top of the pressure plate 32. A top block 35 is provided at the top of each of the two anti-overflow baffles 34. A spring 36 is provided between the bottom of the top block 35 and the top of the pressure plate 32. A drive connecting platform 37 is provided at the center of the top of the pressure plate 32. The bottom of the drive connecting platform 37 is fixedly connected to the output end of the external lifting drive structure.

[0030] To achieve precise adjustment of the adhesive coating thickness, after the sample 5 is precisely positioned, the adhesive is applied to the top of the sample 5. The output end of the external lifting drive structure pushes the pressure plate 32 downward. Under the vertical guidance of the guide column 31 and the guide block 33, the pressure plate 32 moves downward, and the anti-overflow baffle 34 moves downward simultaneously. The anti-overflow baffle 34 first contacts the top of the mold body 1. As the pressure plate 32 continues to move downward, the anti-overflow baffle 34 is blocked and moves upward relative to the pressure plate 32. The spring 36 is stretched, and the rebound force of the spring 36 makes the anti-overflow baffle 34 press against the top of the mold body 1 and the positioning block 6. This not only prevents glue overflow but also limits the positioning block 6. By adjusting the height of the pressure plate 32, excess adhesive on the top of the pressure plate 32 can be squeezed out, ensuring the adhesive coating thickness and solving the problem of uneven glue thickness, thus achieving precise control of the adhesive coating thickness.

[0031] Reference Figures 1-3 A base 44 for ejecting sample assembly 4 is provided at the bottom of the mold body 1. Two electric push rods 41 are symmetrically arranged on the top of the base 44. The output ends of the two electric push rods 41 are fixed to the bottom of the mold body 1. An ejector plate 42 is embedded in the top of the base 44. An ejector hole 43 is provided on the top of the mold body 1 near the outer side of the ejector plate 42. The top of the ejector plate 42 and the top of the mold body 1 are on the same horizontal plane, and the outer side wall of the ejector plate 42 and the inner side wall of the ejector hole 43 are in contact, which can prevent the adhesive from overflowing through the ejector hole 43 and ensure that the sample 5 on the top of the ejector plate 42 is placed horizontally.

[0032] To facilitate the ejection of the adhesive-coated sample 5, after the adhesive coating on the top of sample 5 is completed, the electric push rod 41 is controlled to pull the mold body 1 downwards via its output end. As the mold body 1 moves downwards, the ejector plate 42 and the mold body 1 move relative to each other. At this time, the ejector plate 42 lifts the sample 5 during its relative upward movement, and the sample 5 is gradually pushed away from the mold body 1. The residual adhesive connected to the adhesive coating on the top of the sample 5 is also ejected. Once the sample 5 is separated from the mold body 1, it can be removed for easy extraction.

[0033] Reference Figure 1 and Figure 5 The sample 5 is placed between the two positioning side plates 21 near the top of the mold body 1. Two positioning blocks 6 are symmetrically arranged on the outer side wall of the sample 5. The positioning groove 22 and the positioning block 6 are matched and fitted to achieve positioning of the sample 5, thereby ensuring that the sample 5 is quickly positioned and placed. The sample 5 is located directly above the top material hole 43.

[0034] The designed sample 5 with positioning block 6 can cooperate with positioning component 2 to achieve rapid positioning of sample 5, which solves the problem of inaccurate glue application position and ensures that the adhesive can be accurately applied to the designated position of sample 5.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pre-loading mold for a thermomechanical analyzer, characterized in that: Includes the mold body (1); The positioning component (2) is located on the top of the mold body (1); and A coating thickness adjustment component (3) is provided above the mold body (1); Sample ejection assembly (4) is located at the bottom of the mold body (1); The positioning component (2) includes: Two positioning side plates (21) are symmetrically arranged on the top of the mold body (1); A positioning groove (22) is formed on the outer wall of one side of the positioning side plate (21); The coating thickness adjustment component (3) includes: A pressure plate (32) is provided above the mold body (1); An anti-overflow baffle (34) symmetrically extends through the top of the pressure plate (32); A top block (35) is provided on the top of the overflow baffle (34); A spring (36) is provided between the bottom of the top block (35) and the top of the pressure plate (32); The sample launcher assembly (4) includes: A base (44) is provided at a position below the mold body (1); An electric push rod (41) is provided on the top of the base (44), and the output end of the electric push rod (41) is fixedly connected to the bottom of the mold body (1); A top plate (42) is embedded in the top of the base (44); An ejector hole (43) is provided on the top of the mold body (1) near the outer side of the ejector plate (42); The specimen (5) is placed between the two positioning side plates (21); Positioning blocks (6) are symmetrically arranged on the outer side wall of the sample (5).

2. The pre-testing mold for a thermomechanical analyzer according to claim 1, characterized in that: The top of both the mold body (1) and the positioning side plate (21) are provided with positioning holes (24), and positioning pins (23) are pinned inside the positioning holes (24).

3. The pre-testing mold for a thermomechanical analyzer according to claim 1, characterized in that: The top of the mold body (1) is symmetrically provided with four guide pillars (31), and the outer side wall of the pressure plate (32) is symmetrically provided with four guide blocks (33). The guide pillars (31) pass through the positioning side plate (21) and the guide blocks (33).

4. The pre-testing mold for a thermomechanical analyzer according to claim 1, characterized in that: A drive connecting platform (37) is provided at the top center of the pressure plate (32), and the top of the drive connecting platform (37) is fixedly connected to the output end of the external lifting drive mechanism.

5. The pre-testing mold for a thermomechanical analyzer according to claim 1, characterized in that: The positioning groove (22) and the positioning block (6) are matched and fit together.

6. The pre-testing mold for a thermomechanical analyzer according to claim 1, characterized in that: The top of the top plate (42) and the top of the mold body (1) are on the same horizontal plane, and the outer side wall of the top plate (42) and the inner side wall of the top hole (43) are in contact.

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