Novel high-pressure crucible tablet press

Abstract

The utility model provides a novel high-pressure crucible tablet press, which comprises a main body, a pressure head, a pressure head driving device and a turntable for placing a crucible, a groove for placing the crucible is arranged on the middle lower part of the main body, the pressure head driving device is arranged in a vertical groove arranged on the main body above the groove, the upper end of the pressure head driving device is connected with the main body, and the turntable is arranged on the upper end of the pressure head driving device. A rotary disc is arranged at the position, corresponding to the pressing head, of the lower surface of the groove. A Z-shaped pressing rod is fixedly arranged on the side face of the pressing head driving device, and a first reset spring is arranged at the upper end of the pressing head driving device and connected with the body. The compression bar has the advantages that space is saved, the size of the whole compression bar is smaller, installation and layout are more convenient, the mechanical mechanics principle is fully considered, and the length of a power arm of the compression bar is optimized. A pressure detection device and a pressure reading display function are added, so that the pressure when the crucible is pressed can be directly and accurately judged and read.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of crucible tablet press, concretely relates to a novel high pressure crucible tablet press. BACKGROUND

[0002] The current material thermal stability milligram level test adopts differential scanning calorimeter, and the measured sample needs to be sealed in a high pressure crucible and then put into the differential scanning calorimeter test cavity for testing. During the pressing process of the crucible, the following situations may occur: unqualified pressing, inconvenient pressing, long pressing time, etc. In particular, if the sealing performance of the crucible pressing is unqualified, it may cause material leakage during the test, and a large amount of sample may overflow or vaporize, resulting in deviation of the test data. In severe cases, it may also contaminate the pressure sensor of the differential scanning calorimeter, affecting the performance of the pressure sensor or causing corrosion and damage to the pressure sensor. In addition, the high-temperature vapor of the sample leakage may also escape into the differential scanning calorimeter during the test, causing other important accessories to be in a poor environment, shortening the service life of the equipment and weakening the performance of the equipment.

[0003] Therefore, a novel high pressure crucible tablet press is needed, which can quickly and efficiently meet the pressing of high pressure crucibles of multiple models, effectively reduce the risk of sample leakage in the crucible caused by unqualified sealing performance of the crucible pressing, weaken the impact of the leaked sample on the equipment, and obtain accurate and effective data. The patent with publication number CN217033264U discloses a high pressure crucible tablet press, which is arranged on the turntable. The pressing structure of this patent is vertically movable up and down, which requires multiple rotations of the torque wrench, requires a large space for operation, is very laborious during use, and takes a long time to operate. It cannot efficiently complete the pressing of the crucible, especially in situations that require rapid completion of the crucible pressing experiment, such as volatile samples and unstable samples, which leads to unqualified preparation of the experimental crucible and the inability to obtain accurate and effective data. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the problems of the high pressure crucible tablet press, such as the need for a large space, laborious use, and the inability to obtain accurate and effective data, are solved.

[0005] The utility model provides a novel high pressure crucible tablet press, which comprises a main body, a pressure head, a pressure head driving device and a turntable for placing a crucible, a recess for placing the crucible is formed in the lower part of the main body, a vertical groove is formed in the upper part of the main body, and the pressure head driving device is arranged in the vertical groove, the upper end of the pressure head driving device is connected to the main body, the lower end of the pressure head driving device is provided with the pressure head, and the turntable is arranged at the position corresponding to the pressure head on the lower surface of the recess.

[0006] The side of the pressure head driving device is fixedly provided with a Z-shaped pressing rod, and the upper end of the pressure head driving device is provided with a first reset spring connecting body.

[0007] Further, a pressure sensor is arranged at the bottom of the rotary disc.

[0008] Further, a display screen for displaying the current pressure value is arranged at the top surface of the main body, and the pressure sensor is electrically connected to the display screen.

[0009] As a preferred solution, a second reset spring is arranged at the upper surface of the groove and is fixedly connected to a rebound plate arranged at the side of the pressure head driving device.

[0010] Further, a plurality of positioning holes for fixing different types of crucibles are arranged at the upper surface of the rotary disc.

[0011] Further, a bolt hole for fixing the bottom is arranged at the edge of the bottom of the main body.

[0012] Further, the pressure head driving device comprises a rotating part fixedly connected to the pressing rod, a pressure bearing part fixedly connected to the pressure head, and a transmission part hingedly connected to one end of the rotating part and the upper end of the pressure bearing part, respectively, the middle part of the rotating part is rotatably connected to the main body, the pressing rod drives the one end of the rotating part hingedly connected to the transmission part to rotate downward, and drives the transmission part and the pressure bearing part to move downward.

[0013] As a preferred solution, the shape of the vertical groove is matched with the pressure head driving device, and the vertical groove guides the pressure head driving device.

[0014] As a preferred solution, when the rotating part rotates to a vertical state, the transmission part is also in a vertical state.

[0015] The operation process of the utility model is as follows:

[0016] Before testing, the high-pressure crucible is weighed, an appropriate amount of sample to be tested is added into the high-pressure crucible by using appropriate sampling tools, and the sample mass is weighed, the crucible gasket and the crucible cover are placed in the main body of the crucible at appropriate positions; according to the crucible model, the crucible to be pressed is placed on the rotary disc and rotated to be directly below the pressure head.

[0017] The pressing rod is held and pressed counterclockwise, under the action of coaxial rotation, the pressure head is lowered by the pressure driving device, and the pressing of the crucible is quickly completed. After the pressing of the crucible is completed, the relevant tests can be carried out according to the conventional thermal stability test operation procedures. Before testing, the weight of the test crucible sample and the weight of the crucible are recorded, and after testing, the total weight of the crucible and the sample can be normally weighed, the test related parameters are read, the parameters and test curves are calculated through professional matching software, and the thermal stability test data of the sample can be obtained.

[0018] The utility model has the beneficial effects that:

[0019] 1. The utility model adopts a unique side setting Z type pressure bar design. This design not only saves space significantly, makes the overall equipment volume smaller, is more convenient for installation and layout, but also fully considers the mechanical principle, makes the power arm length of pressure bar be optimized. The extension of power arm helps reduce the force required when operating, thereby improving work efficiency and reducing the labor intensity of operator.

[0020] 2. The utility model discloses a lower punch die turntable of placing crucible has multiple model positioning hole, the utility model discloses a turntable of different model combination is suitable for different specifications of crucible on the market, only need to rotate the turntable in the operation process can select to press different specifications high -pressure crucible, do not need to disassemble and replace accessories, more efficient, can adapt to multiple test scene needs.

[0021] 3. The utility model adds pressure detection device and pressure display function on practical function, can directly accurately judge and read the pressure size when pressing crucible, is convenient for intuitive judgment the pressure size of crucible pressing and whether the sealing property of crucible is qualified.

[0022] 4. The utility model discloses a labor -saving pressure bar and pressure sensor combined mode is adopted to press crucible, not only laborsaving fast when operating, and can directly accurately judge and read the pressure data of pressing crucible, convenient for judging whether the sealing property of crucible pressing is qualified. DRAWINGS

[0023] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed, wherein

[0024] Figure 1 It is the structural schematic diagram of the utility model.

[0025] Figure 2 It is the structural schematic diagram of the utility model Figure 1 A-A angle.

[0026] Figure 3 It is the structural schematic diagram of the utility model Figure 1 A-A angle.

[0027] The reference numerals in the drawings are:

[0028] 1, main body, 11, recess, 12, pressure sensor, 13, display screen, 14, second reset spring, 15, rebound plate, 16, vertical slot, 2, pressure head, 3, driving device, 31, pressure bar, 32, rotating part, 33, pressure receiving part, 34, transmission part, 35, first reset spring, 4, turntable. CONCRETE IMPLEMENTATION

[0029] To illustrate the characteristics of the present application, the present application will be further described below in conjunction with the drawings and examples.

[0030] Embodiment:

[0031] Reference Figures 1 to 3 The present embodiment provides a novel high-pressure crucible tablet press, which comprises a main body 1, a pressure head 2, a pressure head driving device 3 and a turntable 4 for placing a crucible, a recess 11 for placing a crucible is formed in the lower middle part of the main body 1, a vertical groove 16 is formed in the upper part of the main body, and the pressure head driving device 3 is arranged in the vertical groove 16, the shape of the vertical groove is matched with the pressure head driving device in the present embodiment, and the pressure head driving device is guided, the upper end of the pressure head driving device 3 is connected with the main body 1, the lower end of the pressure head driving device 3 is provided with the pressure head 2, the turntable 4 is arranged at the position corresponding to the pressure head on the lower surface of the recess 11, and a bolt hole 20 for fixing the bottom is arranged at the edge of the bottom of the main body 1;

[0032] A Z-shaped pressure rod 31 is fixedly arranged on the side surface of the pressure head driving device 3, and the main consideration of this arrangement scheme is to save space and save labor, which is different from the scheme of placing a pressure rod on the top of a traditional tablet press, the side surface arrangement scheme adopted in the present embodiment saves more space, and the utilization efficiency of force is improved by increasing the power arm, and a first reset spring 35 is arranged at the upper end of the pressure head driving device 3 and connected with the main body 1, two tension springs are selected as the first reset spring 35 in the present embodiment, and after use, the pressure head driving device 3 is more labor-saving and rebounding under the pushing of hands, and the operation is convenient.

[0033] The pressure head driving device 3 comprises a rotating part 32 fixedly connected with the pressure rod 31, a pressure bearing part 33 fixedly connected with the pressure head 2 and a transmission part 34 hingedly connected with one end of the rotating part 32 and the upper end of the pressure bearing part 33 respectively, the middle part of the rotating part 32 is rotatably connected with the main body 1, the pressure rod 31 drives the one end of the rotating part 32 hingedly connected with the transmission part 34 to rotate downward, and drives the transmission part 34 and the pressure bearing part 33 to move downward.

[0034] In order to make the pressure result more controllable, a pressure sensor 12 is arranged at the bottom of the turntable 4, and a display screen 13 for displaying the current pressure value is arranged on the top surface of the main body 1, the pressure sensor 12 is electrically connected with the display screen 13, and when the pressure head 2 is pressed down, the pressure sensor 12 detects the current pressure and transmits the pressure data to the display screen 13 for display, so that the operator can read the pressure value at any time.

[0035] In order to ensure the rebounding force of the pressure head driving device 3, a second reset spring 14 is arranged on the upper surface of the recess 11 and connected with a rebounding plate 15 fixedly arranged on the side surface of the pressure head driving device 3, and when the pressure head driving device 3 rebounds, the first reset spring 35 and the second reset spring 14 work together to ensure the rebounding force.

[0036] In order to adapt to different types of high-pressure crucibles, a plurality of positioning holes 111 for fixing different types of crucibles are formed on the upper surface of the rotating disc 4, and when the crucible is placed, the rotating disc 4 is rotated to make the corresponding positioning hole 111 face the pressure head 2.

[0037] The operation process of the embodiment is as follows:

[0038] Before testing, the high-pressure crucible is weighed, an appropriate amount of sample to be tested is added into the high-pressure crucible by using a suitable sampling tool, and the sample mass is weighed, the crucible gasket and the crucible cover are placed in the appropriate position in the crucible main body; according to the type of the crucible, the crucible to be pressed is placed in the corresponding crucible positioning hole 12, the rotating disc 4 is rotated, and the crucible positioning hole thereof is rotated to the position directly below the pressure head; the pressure rod handle 3 is held and pressed counterclockwise, the pressure rod 31 is driven, the rotating part 32 fixedly connected and coaxially rotated with the pressure rod 31 is further rotated downward through the one end of the rotating part 32 hinged with the transmission part 34, and the transmission part 34 and the pressure bearing part 33 are driven to move downward to make the pressure head 2 descend, the rotating part 32 is rotated to the vertical state, and at this time, the transmission part 34 is also in the vertical state, and the pressing of the crucible is completed; the pressure sensor 12 is arranged directly below the pressure head 2, which can detect the pressure of the pressed crucible, and the pressure signal is transmitted to the display screen 13 through the pressure signal transmission line, so that the pressure of the pressed crucible can be confirmed in real time, and whether the pressing of the crucible is qualified can be judged. After the pressing of the crucible is completed, the related test can be carried out according to the conventional thermal stability test operation procedure. The weight of the test crucible sample and the weight of the crucible are recorded before testing, and after testing, the total weight of the crucible and the sample can be weighed, the test related parameters can be read, the parameters and the test curve can be calculated through the professional matching software, and the thermal stability test data of the sample can be obtained.

[0039] The above embodiment and the drawings are only used to illustrate the technical scheme of the utility model, and are not limited to the utility model. The utility model has been described in detail with reference to the preferred embodiment, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model. Other related technical structures not described in detail in the utility model are the existing technologies in the art.

Claims

1. A novel high-pressure crucible tablet press, comprising a main body (1), a pressure head (2), a pressure head driving device (3) and a turntable (4) for placing a crucible, a recess (11) for placing a crucible is formed in the lower middle part of the main body (1), Characterized in that: a vertical groove (16) is formed in the upper part of the main body above the recess (11), and the pressure head driving device (3) is arranged in the vertical groove (16), the upper end of the pressure head driving device (3) is connected with the main body (1), the lower end of the pressure head driving device (3) is provided with the pressure head (2), and the turntable (4) is arranged at the position corresponding to the pressure head on the lower surface of the recess (11); a Z-shaped pressure rod (31) is fixedly arranged on the side surface of the pressure head driving device (3), and a first reset spring (35) is arranged on the upper end of the pressure head driving device (3) to connect the main body (1).

2. The novel high pressure crucible tableting machine according to claim 1, characterized in that: A pressure sensor (12) is arranged at the bottom of the turntable (4).

3. The novel high pressure crucible tableting machine according to claim 2, characterized in that: A display screen (13) for displaying the current pressure value is arranged on the top surface of the main body (1), and the pressure sensor (12) is electrically connected with the display screen (13).

4. The novel high pressure crucible tableting machine according to claim 1, characterized in that: A rebound plate (15) is arranged on the side surface of the pressure head driving device, and a second reset spring (14) is arranged on the upper surface of the recess (11) to connect the rebound plate (15).

5. The novel high pressure crucible tableting machine according to claim 1, characterized in that: A plurality of positioning holes (111) for fixing different models of crucibles are formed in the upper surface of the turntable (4).

6. The novel high pressure crucible tableting machine according to claim 1, characterized in that: Bolt holes (20) for fixing the bottom are arranged at the edge of the bottom of the main body (1).

7. The novel high pressure crucible tableting machine according to claim 1, characterized in that: The pressure head driving device (3) comprises a rotating part (32) fixedly connected with the pressure rod (31) and coaxially rotating, a pressure bearing part (33) fixedly connected with the pressure head (2), and a transmission part (34) hingedly connected with one end of the rotating part (32) and the upper end of the pressure bearing part (33), respectively, the middle part of the rotating part (32) is rotatably connected with the main body (1), the pressure rod (31) drives the one end of the rotating part (32) hingedly connected with the transmission part (34) to rotate downward, and drives the transmission part (34) and the pressure bearing part (33) to move downward.

8. The novel high pressure crucible tableting machine according to claim 1, characterized in that: The shape of the vertical groove (16) is matched with the pressure head driving device (3) to guide the pressure head driving device (3).

9. The novel high pressure crucible tableting machine according to claim 7, characterized in that: When the rotating part (32) rotates to the vertical state, the transmission part (34) is also in the vertical state.

Images