An apparatus for pressing and forming asphalt powder test samples

Abstract

This utility model relates to an asphalt powder testing sample tableting device, including a tableting machine and a forming kit located below the tableting machine. The forming kit includes a tableting sleeve, a limiting base, a supporting base, a limiting sleeve, and a top pressure head. The tableting sleeve adopts a trapezoidal cross-section structure with a larger top and a smaller bottom, and the limiting base adopts a trapezoidal cross-section structure with a smaller top and a larger bottom. The tableting sleeve is located inside the top of the limiting base. A vertically upward-extending supporting column is set at the center of the supporting base, and the top of the supporting column extends into the interior of the limiting base and abuts against the bottom of the tableting sleeve. A vertically downward-extending pressure-bearing column is set at the center of the top pressure head. A forming cavity is set inside the tableting sleeve, and the bottom of the pressure-bearing column passes through the limiting sleeve and presses against the top of the forming cavity. In summary, this utility model has the advantages of simple structure, convenient use, good testing effect, convenient tablet loading and unloading, low risk of tablet damage, and high efficiency in asphalt sample testing.

Description

Technical Field

[0001] This utility model belongs to the field of asphalt powder testing technology, specifically relating to an asphalt powder testing sample pressing and forming device. Background Technology

[0002] Asphalt is a dark brown, complex mixture composed of hydrocarbons of varying molecular weights and their non-metallic derivatives. At room temperature, it exists as a highly viscous liquid or semi-solid, with a black surface. It is soluble in carbon disulfide and carbon tetrachloride, but insoluble in water. It is primarily used in road engineering, building waterproofing, and industrial materials. As a key component in construction, it significantly impacts the quality of the work. Therefore, continuous sampling of asphalt is necessary before and during use, followed by testing and analysis. Testing liquid asphalt is inconvenient, so current testing methods tend to solidify it and press it into standard asphalt pellets for testing. However, these pellets lack corresponding testing components, resulting in poor testing effectiveness and inconvenient handling. The pellets are also easily damaged during handling, severely impacting the efficiency of asphalt sample testing.

[0003] The invention patent with application number "CN202110169916.X" entitled "An X-ray fluorescence spectroscopy determination of a pressed sample of asphalt and its sample preparation method" mentions that "the mixture is directly pressed into a tablet on a tablet press to make a smooth sample. The sample is placed in a 110°C oven for 10 minutes, and the sample softens. The experimenter can deform it by simply touching it with his hands while wearing cotton gloves." Although the tablet is pressed on a tablet press, the tablet is handled in a primitive way, which is not only inefficient but also very easy to cause damage.

[0004] Therefore, there is an urgent need for a sample pressing and forming device for asphalt powder testing to solve the problems of poor testing effect, inconvenient pressing and placing of tablets, easy damage to the tablets, and low efficiency of asphalt sample testing. Summary of the Invention

[0005] In view of this, the present invention proposes an asphalt powder testing sample pressing and forming device, which is applied to the field of asphalt powder testing technology, and solves the existing technical problems of poor testing effect, inconvenient pressing and placing, easy damage to pressing, and low efficiency of asphalt sample testing.

[0006] To achieve the above-mentioned technical objectives, the specific technical solution adopted by this utility model is as follows:

[0007] A tableting device for asphalt powder testing samples includes a tableting machine and a forming assembly located below the tableting machine. The forming assembly includes a tableting sleeve, a limiting base, a support base, a limiting sleeve, and a top pressure head. The tableting sleeve has a trapezoidal cross-section structure that is larger at the top and smaller at the bottom. The limiting base also has a trapezoidal cross-section structure that is smaller at the top and larger at the bottom. The tableting sleeve is located inside the top of the limiting base. A vertically upward-extending support column is provided at the center of the support base. The top of the support column extends into the interior of the limiting base and abuts against the bottom of the tableting sleeve. A vertically downward-extending pressure column is provided at the center of the top pressure head. A forming cavity is provided inside the tableting sleeve. The bottom of the pressure column passes through the limiting sleeve and presses against the top of the forming cavity. The position of the tableting sleeve is limited by the pressure column, the limiting base, and the support column.

[0008] Furthermore, the bottom of the limiting sleeve is provided with a downward-opening combined cavity, the top of the limiting base extends into the combined cavity, the forming cavity includes an upper cavity and a lower cavity, the diameter of the pressure-bearing column is the same as the inner diameter of the upper cavity, and the top diameter of the support column is larger than the inner diameter of the lower cavity.

[0009] Furthermore, the tablet compression sleeve includes a trapezoidal outer ring and a trapezoidal inner ring. The limiting base has an upper opening and a lower cavity inside. The inner diameter of the upper opening is larger than the inner diameter of the lower cavity. The trapezoidal outer ring is located inside the upper opening and is located vertically between the limiting sleeve and the limiting base. The trapezoidal inner ring and the support column are located inside the lower cavity.

[0010] Furthermore, the trapezoidal outer ring is located horizontally between the upper opening and the upper cavity.

[0011] Furthermore, the outer diameter of the limiting base is the same as the outer diameter of the limiting sleeve. The limiting base and the limiting sleeve together limit the tablet compression sleeve, and the limiting base supports the limiting sleeve.

[0012] Furthermore, the outer ring of the support base is provided with a vertically upward annular limiting ring, which surrounds the outer ring of the limiting base and is located below the limiting sleeve.

[0013] Furthermore, the limiting sleeve has a limiting cavity inside, through which the support column passes and is slidably connected to the inner wall of the limiting cavity.

[0014] Furthermore, a circular pressure plate is provided at the upper end of the top pressure head. The circular pressure plate is fixedly connected to the pressure-bearing column. The outer diameter of the circular pressure plate is smaller than the outer diameter of the limiting sleeve. Under the action of the tablet press, the circular pressure plate, through the transmission of the pressure column, squeezes the asphalt powder inside the limiting cavity into the molding cavity and extrudes and shapes the asphalt powder inside the molding cavity.

[0015] By adopting the above technical solution, this utility model can also bring the following beneficial effects:

[0016] 1. This utility model discloses an asphalt powder testing sample compression molding device. Through the setting of the molding kit, the position of the compression sleeve can be fully limited by the pressure column, the limiting base and the support column, preventing the compression sleeve from being displaced under pressure. At the same time, the top pressure head squeezes the asphalt powder into the molding cavity and forms it into a shape that is convenient for testing inside the compression cavity. It has the advantages of simple structure and good molding effect.

[0017] 2. This utility model discloses an asphalt powder testing sample pressing and forming device, mainly addressing the problem of taking and placing the formed asphalt pressings. It prevents the asphalt pressings formed under pressure from failing to quickly detach from the inner cavity wall, avoiding the risk of damage caused by squeezing the asphalt pressings with auxiliary tools such as tamping rods. It can quickly take and place the asphalt pressings by disassembling the limiting base, supporting base, and limiting sleeve. Moreover, the pressing sleeve can also transport the asphalt pressings without affecting the asphalt pressing test, thereby further reducing the risk of damage to the asphalt pressings. It has the advantages of convenient disassembly, low risk of pressing damage, high efficiency of asphalt sample testing, and suitability for large-scale promotion. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments 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 utility model provides a schematic diagram of the structure of an asphalt powder testing sample pressing and forming device;

[0020] Figure 2 This is a schematic diagram of the molding kit in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the transverse cross-section of the molding kit in an embodiment of this utility model;

[0022] Figure 4 This is an exploded view of the molded kit in an embodiment of this utility model;

[0023] 1. Tableting machine; 2. Forming kit; 3. Tableting sleeve; 4. Limiting base; 5. Support base; 6. Limiting sleeve; 7. Top pressure head; 8. Support column; 9. Pressure-bearing column; 10. Forming cavity; 11. Combined cavity; 12. Trapezoidal outer ring; 13. Trapezoidal inner ring; 14. Annular limiting ring; 15. Circular pressure plate; 16. Upper opening; 17. Lower cavity; 18. Limiting through cavity. Detailed Implementation

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. This utility model can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0028] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0029] In one embodiment of this utility model, such as Figures 1 to 4As shown, an asphalt powder testing sample tableting device includes a tablet press 1 and a forming kit 2 located below the tablet press 1. The forming kit 2 includes a tableting sleeve 3, a limiting base 4, a supporting base 5, a limiting sleeve 6, and a top pressing head 7. The tableting sleeve 3 adopts a trapezoidal cross-section structure with a larger top and a smaller bottom, and the limiting base 4 adopts a trapezoidal cross-section structure with a smaller top and a larger bottom. The tableting sleeve 3 is located inside the top of the limiting base 4. A vertically upward extending supporting column 8 is provided at the center of the supporting base 5. The top of the supporting column 8 extends into the interior of the limiting base 4 and abuts against the bottom of the tableting sleeve 3. A vertically downward extending pressure-bearing column 9 is provided at the center of the top pressing head 7. A forming cavity 10 is provided inside the tableting sleeve 3. The bottom of the pressure-bearing column 9 passes through the limiting sleeve 6 and is pressed against the top of the forming cavity 10. The position of the tableting sleeve 3 is limited by the pressure-bearing column 9, the limiting base 4, and the supporting column 8.

[0030] The bottom of the limiting sleeve 6 is provided with a downward-opening combined cavity 11. The top of the limiting base 4 extends into the combined cavity 11. The forming cavity 10 includes an upper cavity and a lower cavity. The diameter of the pressure-bearing column 9 is the same as the inner diameter of the upper cavity, and the top diameter of the support column 8 is larger than the inner diameter of the lower cavity. The tablet compression sleeve 3 includes a trapezoidal outer ring portion 12 and a trapezoidal inner ring portion 13. The limiting base 4 is provided with an upper opening 16 and a lower cavity 17. The inner diameter of the upper opening 16 is larger than the inner diameter of the lower cavity 17. The trapezoidal outer ring portion 12 is located inside the upper opening 16 and is vertically located between the limiting sleeve 6 and the limiting base 4. The trapezoidal inner ring portion 13 and the support column 8 are located inside the lower cavity 17. The trapezoidal outer ring portion 12 is horizontally located between the upper opening 16 and the upper cavity.

[0031] The outer ring of the support base 5 is provided with a vertically upward annular limiting ring 14, which surrounds the outer ring of the limiting base 4 and is located below the limiting sleeve 6. The limiting sleeve 6 has a limiting cavity 18 inside, through which the support column 8 passes and is slidably connected to the inner wall of the limiting cavity 18. The outer diameter of the limiting base 4 and the outer diameter of the limiting sleeve 6 are the same. The limiting base 4 and the limiting sleeve 6 together limit the tablet compression sleeve 3, and the limiting base 4 supports the limiting sleeve 6.

[0032] A circular pressure plate 15 is provided at the upper end of the top pressure head 7. The circular pressure plate 15 is fixedly connected to the pressure column 9. The outer diameter of the circular pressure plate 15 is smaller than the outer diameter of the limiting sleeve 6. Under the action of the tablet press 1, the circular pressure plate 15, through the transmission of the pressure column 9, squeezes the asphalt powder inside the limiting cavity 18 into the molding cavity 10, and extrudes and shapes the asphalt powder inside the molding cavity 10.

[0033] In use, the tableting sleeve 3 is first placed into the upper opening 16 of the limiting base 4. Then, the support column 8 on the supporting base 5 is inserted into the lower cavity 17 of the limiting base 4, and the support column 8 abuts against the lower end of the tableting sleeve 3. At this time, the bottom of the limiting base 4 also enters the annular limiting ring 14 on the supporting base 5. Then, the limiting sleeve 6 is installed downwards onto the limiting base 4, and the top of the limiting base 4 extends upwards into the combined cavity 11. Next, asphalt powder is added to the forming cavity 10 of the tableting sleeve 3 through the limiting passage 18 of the limiting sleeve 6. Then, the pressure-bearing column 9 of the top pressure head 7 is vertically inserted downwards into the limiting passage 18. Finally, the assembled molding kit 2 is placed in the corresponding position below the tablet press 1. Under the action of the tablet press 1, the circular pressure plate 15, through the transmission of the pressure column 9, squeezes the asphalt powder inside the limiting cavity 18 into the molding cavity 10, and shapes the asphalt powder inside the molding cavity 10. After the limiting base 4, support base 5, limiting sleeve 6 and top pressure head 7 are removed, the pressed asphalt tablet is moved to the subsequent testing process through the tablet pressing sleeve 3 for subsequent testing. In summary, this utility model has the advantages of simple structure, convenient use, good testing effect, convenient tablet loading and unloading, less risk of tablet damage, and high efficiency in asphalt sample testing.

[0034] 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 scope of the claims.

Claims

1. An asphalt powder detection sample tabletting device, characterized by: The device includes a tablet press (1) and a molding kit (2) located below the tablet press (1). The molding kit (2) includes a tablet compression sleeve (3), a limiting base (4), a support base (5), a limiting sleeve (6), and a top pressure head (7). The tablet compression sleeve (3) has a trapezoidal cross-section structure that is larger at the top and smaller at the bottom. The limiting base (4) has a trapezoidal cross-section structure that is smaller at the top and larger at the bottom. The tablet compression sleeve (3) is located inside the top of the limiting base (4). A vertically upward-extending support column (8) is provided at the center of the support base (5). The top of the support column (8) extends into the interior of the limiting base (4) and abuts against the bottom of the tablet compression sleeve (3). A vertically downward-extending pressure column (9) is provided at the center of the top pressure head (7). A molding cavity (10) is provided inside the tablet compression sleeve (3). The bottom of the pressure column (9) passes through the limiting sleeve (6) and presses against the top of the molding cavity (10).

2. The device for pressing and forming asphalt powder detection sample tablets according to claim 1, characterized in that: The bottom of the limiting sleeve (6) is provided with a downward-opening combined cavity (11), the top of the limiting base (4) extends into the combined cavity (11), the forming cavity (10) includes an upper cavity and a lower cavity, the diameter of the pressure-bearing column (9) is the same as the inner diameter of the upper cavity, and the top diameter of the support column (8) is greater than the inner diameter of the lower cavity.

3. The device for pressing and forming asphalt powder detection sample tablets according to claim 2, characterized in that: The tablet compression sleeve (3) includes a trapezoidal outer ring (12) and a trapezoidal inner ring (13). The limiting base (4) has an upper opening (16) and a lower cavity (17) inside. The inner diameter of the upper opening (16) is larger than the inner diameter of the lower cavity (17). The trapezoidal outer ring (12) is located inside the upper opening (16) and is located between the limiting sleeve (6) and the limiting base (4) in the vertical direction. The trapezoidal inner ring (13) and the support column (8) are located inside the lower cavity (17).

4. The asphalt powder testing sample pressing and forming device as described in claim 3, characterized in that: The trapezoidal outer ring (12) is located horizontally between the upper opening (16) and the upper cavity.

5. The asphalt powder testing sample pressing and forming device as described in claim 4, characterized in that: The outer diameter of the limiting base (4) is the same as that of the limiting sleeve (6). The limiting base (4) and the limiting sleeve (6) together limit the tablet sleeve (3), and the limiting base (4) supports the limiting sleeve (6).

6. The asphalt powder testing sample pressing and forming device as described in claim 5, characterized in that: The outer ring of the support base (5) is provided with a vertically upward annular limiting ring (14), which surrounds the outer ring of the limiting base (4) and is located below the limiting sleeve (6).

7. The asphalt powder testing sample pressing and forming device as described in claim 6, characterized in that: The limiting sleeve (6) has a limiting cavity (18) inside, and the support column (8) passes through the limiting cavity (18) and is slidably connected to the inner wall of the limiting cavity (18).

8. The asphalt powder testing sample pressing and forming device as described in claim 7, characterized in that: The top pressure head (7) is provided with a circular pressure plate (15) at its upper end. The circular pressure plate (15) is fixedly connected to the pressure column (9). The outer diameter of the circular pressure plate (15) is smaller than the outer diameter of the limiting sleeve (6). Under the action of the tablet press (1), the circular pressure plate (15) is transmitted through the pressure column (9) to squeeze the asphalt powder inside the limiting cavity (18) into the molding cavity (10) and to extrude the asphalt powder inside the molding cavity (10) into shape.

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