Powder sample pressing machine for research and development of filter membrane

Abstract

The utility model relates to the field of sample pressing, in particular to a powder sample pressing machine for filter membrane research and development, which comprises a working plate, a movable hole is arranged at the center of the working plate, a fixing structure is arranged on the inner wall of the working plate at the movable hole, a support rod is mounted on the outer wall of the top of the working plate, and a top plate is mounted on the outer wall of the top end of the support rod. The top plate is provided with a hydraulic push rod at the center of the movable hole; the fixing structure comprises a placement disc, a mounting groove formed in the outer wall of the bottom of the placement disc, a vibrator mounted on the placement disc and located on the inner wall of the mounting groove, a placement groove formed in the center of the outer wall of the top of the placement disc, and ventilation holes formed in the placement disc and located in the mounting groove at equal intervals. Micro-vibration generated by the vibrator is transmitted to the material pressing pipe and the powder through the placing disc, and air among the powder is exhausted after the powder vibrates, so that the powder in the material pressing pipe is more compact and convenient to exhaust, the gram weight of the powder is prevented from being reduced, and the accuracy of a sample is improved.

Description

Technical Field

[0001] This utility model relates to the field of sample pressing technology, and in particular to a powder sample pressing machine for filter membrane research and development. Background Technology

[0002] Filter membranes are used for the separation and concentration of solutes in solutions, and are also commonly used for the separation of colloidal suspensions. Their applications are constantly expanding. Membrane separation technology utilizes the difference in permeation rates of various components in a fluid to achieve component separation. Relying on the selective permeability of membranes, small molecules can freely pass through semi-permeable membranes, while large molecules are retained by selective membranes due to their impermeability, thus achieving the purpose of separating, purifying, and concentrating substances from multiple components.

[0003] A sample refers to a specimen that has been processed into a testable sample according to the test purpose. Currently, when preparing a sample, it is necessary to press the powder material into a testable sample. A patent search revealed: Powder Sample Pressing Machine for Graphene Composite Nanofiltration Membrane R&D (202220499649.2). This device has the advantages of simple structure, easy manufacturing, practicality and high efficiency. However, when the powder is pressed into shape in a container, the pores in the powder are relatively large. Direct pressing will cause some powder to be carried out by the gas pressure emission, resulting in insufficient basis weight of the pressed sample, which affects the sample. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems and deficiencies by proposing a powder sample pressing machine for filter membrane research and development: the vibrator generates micro-vibrations which are transmitted to the pressing tube and the powder through the placement plate. After the powder vibrates, the air between the powder particles is expelled, making the powder in the pressing tube more compact, facilitating air venting, avoiding a reduction in the powder weight, and improving the accuracy of the sample.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A powder sample pressing machine for filter membrane research and development includes a working plate with a movable hole at its center and a fixed structure on the inner wall of the working plate at the movable hole. A support rod is installed on the top outer wall of the working plate, and a top plate is installed on the top outer wall of the support rod. A hydraulic push rod is installed on the top plate at the center of the movable hole. The fixed structure includes a placement plate, a mounting groove on the bottom outer wall of the placement plate, a vibrator installed on the inner wall of the mounting groove of the placement plate, a placement groove at the center of the top outer wall of the placement plate, and ventilation holes equidistantly opened at the mounting groove of the placement plate.

[0007] Preferably, a pressing tube is provided at the center of the top outer wall of the placement tray, and a threaded cap is threadedly connected to the bottom inner wall of the pressing tube, and the bottom outer wall of the threaded cap is placed on the inner wall of the placement groove of the placement tray.

[0008] Preferably, the working plate has a fixing groove on the outer wall of each of the four ends of the movable hole, and an electric push rod is installed in each fixing groove. The output shaft of the electric push rod is installed with a fixing plate.

[0009] Preferably, the outer wall of the fixing plate near the pressure tube is provided with an arc-shaped groove, and the outer wall of the fixing plate is in contact with the outer wall of the pressure tube. The fixing plate is slidably connected to the inner wall of one end of the mounting groove.

[0010] Preferably, the outer side wall of the placement tray is equipped with connecting springs that are evenly distributed, and the other end of the connecting spring is installed on the inner wall of the working plate at the movable hole.

[0011] Preferably, a pressure block is installed on the bottom outer wall of the hydraulic push rod, and a pressure sensor is installed on the bottom outer wall of the pressure block. The side outer wall of the pressure block is slidably connected to the inner wall of the pressure tube.

[0012] Preferably, a controller is installed on one side of the outer wall of the working plate, and a support block is installed at the center of the top outer wall of the support plate, with the top outer wall of the support block in contact with the bottom outer wall of the placement tray.

[0013] Preferably, the electric push rod, hydraulic push rod, and vibrator are connected to the controller via wires, and the controller is connected to the power source via wires.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The vibrator generates micro-vibrations, which are transmitted to the pressing tube and powder through the placement plate. After the powder vibrates, the air between the powder particles is expelled, making the powder in the pressing tube more compact, facilitating air venting, avoiding a reduction in the powder weight, and improving the accuracy of the sample.

[0016] 2. Remove the threaded cap at the bottom of the pressing tube and take out the pressed sample from the bottom to facilitate sample removal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a powder sample pressing machine for filter membrane research and development proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of a powder sample pressing machine for filter membrane research and development proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the unfolded structure of the placement tray of a powder sample pressing machine for filter membrane research and development proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the bottom structure of the placement tray of a powder sample pressing machine for filter membrane research and development proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the pressing tube structure of a powder sample pressing machine for filter membrane research and development proposed in this utility model.

[0022] In the diagram: 1. Working plate, 2. Movable hole, 3. Support plate, 4. Fixed structure, 5. Pressing pipe, 6. Support rod, 7. Top plate, 8. Hydraulic push rod, 9. Lower pressing block, 10. Controller, 11. Threaded cover, 12. Connecting spring, 13. Placement plate, 14. Mounting slot, 15. Vibrator, 16. Ventilation hole, 17. Placement slot, 18. Fixed slot, 19. Electric push rod, 20. Fixed plate, 21. Support block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1:

[0025] Reference Figures 1-3 and Figure 5 A powder sample pressing machine for filter membrane research and development includes a working plate 1, a movable hole 2 is provided at the center of the working plate 1, and a fixing structure 4 is provided on the inner wall of the working plate 1 at the movable hole 2. A support rod 6 is installed on the top outer wall of the working plate 1, and a top plate 7 is installed on the top outer wall of the support rod 6. A hydraulic push rod 8 is installed on the top plate 7 at the center of the movable hole 2.

[0026] A pressing tube 5 is provided at the center of the top outer wall of the placement tray 13, and a threaded cap 11 is threadedly connected to the bottom inner wall of the pressing tube 5. The bottom outer wall of the threaded cap 11 is placed on the inner wall of the placement groove 17 of the placement tray 13. The threaded cap 11 at the bottom of the pressing tube 5 is removed, and the pressed sample is taken out from the bottom, which makes it easier to take out the sample.

[0027] A lower pressing block 9 is installed on the bottom outer wall of the hydraulic push rod 8, and a pressure sensor is installed on the bottom outer wall of the lower pressing block 9. The side outer wall of the lower pressing block 9 is slidably connected to the inner wall of the pressing tube 5. After the hydraulic push rod 8 is started, it drives the lower pressing block 9 to slide and connect to the inner wall of the pressing tube 5. After the bottom of the placement plate 13 contacts the support block 21, it is convenient for the hydraulic push rod 8 to press the powder, which is convenient for use and sample preparation.

[0028] A controller 10 is installed on one side of the outer wall of the work plate 1, and a support block 21 is installed at the center of the top outer wall of the support plate 3. The top outer wall of the support block 21 contacts the bottom outer wall of the placement tray 13.

[0029] The electric push rod 19, the hydraulic push rod 8, and the vibrator 15 are connected to the controller 10 via wires, and the controller 10 is connected to a power source via wires.

[0030] Example 2:

[0031] Reference Figures 3-5 The fixed structure 4 includes a placement tray 13, a mounting groove 14 formed on the bottom outer wall of the placement tray 13, a vibrator 15 installed on the inner wall of the mounting groove 14 of the placement tray 13, a placement groove 17 formed at the center of the top outer wall of the placement tray 13, and ventilation holes 16 formed at equal intervals on the placement tray 13 at the mounting groove 14. After the vibrator 15 is started, it vibrates the placement tray 13. The mounting groove 14 and the ventilation holes 16 facilitate heat dissipation of the vibrator 15 and make it easy to use.

[0032] The working plate 1 has a fixed groove 18 on each of the four ends of the outer wall at the movable hole 2, and an electric push rod 19 is installed in each of the fixed grooves 18. The output shaft of the electric push rod 19 is installed with a fixed plate 20. When the controller 10 on the working plate 1 starts the electric push rod 19, it starts synchronously and restricts or fixes the pressing tube 5 at the center of the placement plate 13 through the fixed plate 20, which is convenient for positioning and for maintaining the stability of the pressing process.

[0033] The outer wall of the fixing plate 20 near the pressure tube 5 is provided with an arc-shaped groove, and the outer wall of the fixing plate 20 is in contact with the outer wall of the pressure tube 5. The fixing plate 20 is slidably connected to the inner wall of one end of the mounting groove 14.

[0034] The outer side wall of the placement tray 13 is equipped with connecting springs 12 that are evenly distributed. The other end of the connecting spring 12 is installed on the inner wall of the working plate 1 at the movable hole 2. The placement tray 13 is connected to the movable hole 2 of the working plate 1 through the connecting spring 12, which reduces the amount of vibration transmitted when the vibrator 15 is started. At the same time, it fully transmits the vibration of the vibrator 15 to the pressing tube 5 and the powder, which facilitates the discharge of air in the powder and ensures stable pressing and stable sample weight.

[0035] Working principle: In use, screw the threaded cap 11 to the bottom end of the pressing tube 5, add the metered powder into the pressing tube 5, place the pressing tube 5 in the placement groove 17 on the placement plate 13, start the vibrator 15 in the mounting groove 14 at the bottom of the placement plate 13, the vibrator 15 generates micro-vibrations which are transmitted through the placement plate 13 to the pressing tube 5 and the powder. After the powder vibrates, the air between the powder particles is expelled, making the powder in the pressing tube 5 more compact. Start the electric push rod 19 to drive the fixing plates 20 to move closer together, one side of the fixing plate 20 contacts the pressing tube 5, pressing the powder. The four sides of the tube 5 are restricted so that the pressing tube 5 is located in the center of the placement plate 13. The hydraulic push rod 8 is activated to drive the lower pressing block 9 to descend. The lower pressing block 9 enters the inner wall of the pressing tube 5 to press the powder. The lower pressing block 9 and the hydraulic push rod 8 drive the pressing tube 5 and the placement plate 13 to descend. After the placement plate 13 descends, it contacts the support block 21 on the support plate 3. After the placement plate 13 stops descending, the powder is pressed into a whole by the lower pressing block 9. After the electric push rod 19 and the hydraulic push rod 8 return to their positions, the threaded cap 11 at the bottom of the pressing tube 5 is removed, and the pressed sample is taken out from the bottom for easy sample removal.

[0036] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A powder sample pressing machine for filter membrane research and development, comprising a working plate (1), characterized in that, The working plate (1) has a movable hole (2) at its center, and the inner wall of the working plate (1) at the movable hole (2) is provided with a fixed structure (4). The top outer wall of the working plate (1) is equipped with a support rod (6), and the top outer wall of the support rod (6) is equipped with a top plate (7). The top plate (7) is equipped with a hydraulic push rod (8) at the center of the movable hole (2). The fixing structure (4) includes a placement tray (13), a mounting groove (14) opened on the bottom outer wall of the placement tray (13), a vibrator (15) installed on the inner wall of the mounting groove (14) of the placement tray (13), a placement groove (17) opened at the center of the top outer wall of the placement tray (13), and ventilation holes (16) opened at equal intervals on the placement tray (13) at the mounting groove (14).

2. The powder sample pressing machine for filter membrane research and development according to claim 1, characterized in that, The top outer wall of the placement tray (13) is provided with a pressing tube (5), and the bottom inner wall of the pressing tube (5) is threadedly connected with a threaded cap (11), and the bottom outer wall of the threaded cap (11) is placed on the inner wall of the placement groove (17) of the placement tray (13).

3. The powder sample pressing machine for filter membrane research and development according to claim 1, characterized in that, The working plate (1) has a fixing groove (18) on each of its four outer walls at the movable hole (2), and an electric push rod (19) is installed in each fixing groove (18). The output shaft of the electric push rod (19) is fitted with a fixing plate (20).

4. The powder sample pressing machine for filter membrane research and development according to claim 3, characterized in that, The outer wall of the fixing plate (20) near the pressure tube (5) is provided with an arc-shaped groove, and the outer wall of the fixing plate (20) is in contact with the outer wall of the pressure tube (5). The fixing plate (20) is slidably connected to the inner wall of one end of the mounting groove (14).

5. A powder sample pressing machine for filter membrane research and development according to claim 1, characterized in that, The outer side wall of the placement plate (13) is equipped with connecting springs (12) that are evenly distributed, and the other end of the connecting springs (12) is installed on the inner wall of the working plate (1) at the movable hole (2).

6. The powder sample pressing machine for filter membrane research and development according to claim 1, characterized in that, The bottom outer wall of the hydraulic push rod (8) is equipped with a lower pressure block (9), and the bottom outer wall of the lower pressure block (9) is equipped with a pressure sensor. The side outer wall of the lower pressure block (9) is slidably connected to the inner wall of the pressure tube (5).

7. A powder sample pressing machine for filter membrane research and development according to claim 1, characterized in that, A controller (10) is installed on one side of the outer wall of the working plate (1), and a support block (21) is installed at the center of the top outer wall of the support plate (3). The top outer wall of the support block (21) is in contact with the bottom outer wall of the placement plate (13).

8. A powder sample pressing machine for filter membrane research and development according to claim 3, characterized in that, The electric push rod (19), the hydraulic push rod (8) and the vibrator (15) are connected to the controller (10) via wires, and the controller (10) is connected to the power source via wires.

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