CN215985304U - Powder sampling device - Google Patents
Powder sampling device Download PDFInfo
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- CN215985304U CN215985304U CN202121588752.6U CN202121588752U CN215985304U CN 215985304 U CN215985304 U CN 215985304U CN 202121588752 U CN202121588752 U CN 202121588752U CN 215985304 U CN215985304 U CN 215985304U
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- powder sampling
- sampling device
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Abstract
The utility model discloses a powder sampling device which comprises a spiral conveying device, wherein a balance tank body is arranged at the feeding end of the spiral conveying device, a pressure rising and reducing plate is arranged in the balance tank body, the top of the pressure rising and reducing plate is connected with the bottom of a counterweight plate through a connecting rod, a baffle plate is arranged on one side of the pressure rising and reducing plate and matched with a feeding hole formed in the side wall of the balance tank body, and a feeding pipe is obliquely arranged on one side of the feeding hole; the device provided by the utility model can improve the powder sampling efficiency, avoid the problems of easy powder leakage and long time consumption in the sample adding process, and ensure the accuracy of a powder density test.
Description
Technical Field
The utility model relates to the technical field of powder sampling, in particular to a powder sampling device.
Background
The most common powder sampler in a laboratory is various sample spoons, and the sample spoons sold in the market still have great defects in the test process, wherein the biggest defect is easy powder leakage, and the retest is often caused. For powder density test, the unreasonable time consumption that causes of application of sample instrument, the application of sample process leaks powder easily and leads to the repeatability test, and the repetition test time interval is long, wastes time and energy. Particularly for a construction site laboratory, the cement dosage is large every day, and the density detection frequency is high, so that a mode for solving the difficulty in the current test process is urgently needed to be found.
Disclosure of Invention
The utility model aims to overcome the defects and provide the powder sampling device, which can improve the powder sampling efficiency, avoid the problems of easy powder leakage and long time consumption in the sample adding process and ensure the accuracy of a powder density test.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a powder sampling device, includes screw conveyer, screw conveyer feed end department is equipped with the balance tank body, the internal pressure rising and dropping board that is equipped with of balance tank, the pressure rising and dropping board top is passed through the connecting rod and is connected with the counterweight plate bottom, pressure rising and dropping board one side is equipped with the baffle, the baffle cooperates with the feed inlet that the balance tank body lateral wall was seted up, feed inlet one side slant is equipped with the inlet pipe.
Preferably, the top of the balance tank body is also vertically provided with an electric push rod, and the telescopic end of the electric push rod is provided with a top block.
Preferably, one side of the electric push rod is also provided with a pressure sensor, the output end of the pressure sensor is connected with the input end of a controller, and the control signal output end of the controller is connected with the control end of the electric push rod.
Preferably, the spiral conveying device comprises a conveying pipeline, a rotating shaft is arranged in the conveying pipeline, spiral blades are arranged on the rotating shaft, the input end of the rotating shaft is connected with a servo motor, the control end of the servo motor is connected with a controller, and a discharge hole is formed in the bottom of one side of the conveying pipeline.
Preferably, the balance tank body is of a cuboid structure, the top of the balance tank body is detachably connected with the top cover, the baffle plate and the lifting pressing plate are of rectangular plate-shaped structures matched with the inner size of the balance tank body, and the connecting rod is in sliding fit with the through hole formed in the top cover.
The utility model has the beneficial effects that:
the device can improve the sampling efficiency of the powder, avoid the problems of easy powder leakage and long time consumption in the sample adding process and ensure the accuracy of the powder density test; and the lifting pressing plate can be tightly attached to the upper surface of the powder, so that the powder can be compacted, the generation of gaps is avoided, the quantity of the powder output in unit time can be basically consistent in the subsequent spiral conveying process, and the accuracy of taking the powder is ensured.
Drawings
FIG. 1 is a schematic structural view of a powder sampling apparatus;
fig. 2 is an enlarged structural view of the interior of the balancing tank in fig. 1.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific embodiments.
As shown in fig. 1 and 2, a powder sampling device comprises a screw conveyer 1, a balance tank body 2 is arranged at the feed end of the screw conveyer 1, a pressure rising and reducing plate 3 is arranged in the balance tank body 2, the top of the pressure rising and reducing plate 3 is connected with the bottom of a counterweight plate 5 through a connecting rod 4, a baffle 6 is arranged on one side of the pressure rising and reducing plate 3, the baffle 6 is matched with a feed inlet 7 formed in the side wall of the balance tank body 2, and a feed pipe 8 is obliquely arranged on one side of the feed inlet 7.
Preferably, the top of the balance tank body 2 is also vertically provided with an electric push rod 9, and the telescopic end of the electric push rod 9 is provided with a top block 10.
Preferably, a pressure sensor 11 is further arranged on one side of the electric push rod 9, the output end of the pressure sensor 11 is connected with the input end of a controller 12, and the control signal output end of the controller 12 is connected with the control end of the electric push rod 9.
In the above technical scheme, whether the weight plate 5 contacts the surface of the weight plate can be sensed through the pressure sensor 11, when the weight plate 5 moves down to contact the surface of the pressure sensor 11, the pressure sensor 11 transmits a sensed pressure change signal to the controller 12, the controller 12 controls the electric push rod 9 to extend, so that the weight plate 5 is lifted to the highest point, and then the electric push rod contracts and returns to the original position. In this embodiment, controller 12 may be a single chip microcomputer of the type STM32F103RBT 6.
Preferably, spiral delivery mechanism 1 includes pipeline 1.1, be equipped with rotation axis 1.2 in the pipeline 1.1, be equipped with helical blade 1.3 on the rotation axis 1.2, rotation axis 1.2 input is connected with servo motor 1.4, servo motor 1.4 control end is connected with controller 12, and pipeline 1.1 one side bottom has seted up discharge gate 1.5. In this embodiment, when servo motor 1.4 worked, it drove rotation axis 1.2 and rotates to drive helical blade 1.3 rotatory, realize its auger delivery process, can control opening of servo motor 1.4 in addition through controller 12 and stop.
Preferably, the balance tank body 2 is a cuboid structure, the top of the balance tank body is detachably connected with the top cover 2.1, the baffle 6 and the lifting pressing plate 3 are both rectangular plate-shaped structures matched with the internal size of the balance tank body 2, and the connecting rod 4 is in sliding fit with a through hole formed in the top cover 2.1.
The working principle of the embodiment is as follows:
firstly, powder continuously slides into a balance tank body 2 from a feeding pipe 8 which is obliquely arranged through a feeding hole 7, then the powder is accumulated at the feeding end of a spiral conveying device 1 and gradually accumulated in the balance tank body 2, a weight plate 5 is lifted to the highest position by a top block 10 under the initial state due to the extension of an electric push rod 9, so that a pressure rising and reducing plate 3 is positioned at the highest point in the balance tank body 2 under the initial state, after a period of time, the balance tank body 2 is filled with the powder, the electric push rod 9 is contracted at the moment, and the pressure rising and reducing plate 3 can be tightly attached to the upper surface of the powder due to the gravity action of the weight plate 5, so that the powder can be compacted, gaps are avoided, and in the subsequent spiral conveying process, the quantity of the powder output in unit time can be ensured to be basically consistent, and the accuracy of the powder taking is ensured; in the process of taking the powder. The controller 12 controls the servo motor 1.4 to be started, when the servo motor 1.4 works, the servo motor drives the rotating shaft 1.2 to rotate, so that the spiral blade 1.3 is driven to rotate, the spiral conveying process is realized, powder is discharged from the discharge hole 1.5, the powder is conveyed to a corresponding position, the powder sampling process is realized, and in the process, the powder is always positioned in the conveying pipeline 1.1, so that the powder leakage phenomenon cannot occur; the lifting pressure plate 3 can also descend along with the gradual reduction of the powder in the balance tank body 2, the baffle 6 can also move downwards along with the powder and gradually block the feed port 7, the excessive powder can be prevented from entering the spiral conveying device 1, the feeding rate can be obviously controlled, in the process, the counterweight plate 5 can also move downwards, when the counterweight plate moves downwards to contact the surface of the pressure sensor 11, the pressure sensor 11 transmits a sensed pressure change signal to the controller 12, the controller 12 controls the electric push rod 9 to extend, so that the counterweight plate 5 is lifted to the highest point, at the moment, the baffle 6 removes the blocking effect on the feed port 7, the powder is accumulated in the balance tank body 2 again, at the moment, the electric push rod 9 contracts to return to the original position, and then the process is repeated.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.
Claims (5)
1. The utility model provides a powder sampling device, includes screw conveyor (1), its characterized in that: screw conveyor (1) feed end department is equipped with the balance tank body (2), be equipped with pressure rising and dropping board (3) in the balance tank body (2), pressure rising and dropping board (3) top is passed through connecting rod (4) and is connected with counterweight plate (5) bottom, pressure rising and dropping board (3) one side is equipped with baffle (6), feed inlet (7) cooperation that baffle (6) and balance tank body (2) lateral wall were seted up, feed inlet (7) one side slant is equipped with inlet pipe (8).
2. The powder sampling device of claim 1, wherein: the top of the balance tank body (2) is also vertically provided with an electric push rod (9), and the telescopic end of the electric push rod (9) is provided with an ejector block (10).
3. The powder sampling device of claim 2, wherein: electric putter (9) one side still is equipped with pressure sensor (11), pressure sensor (11) output is connected with controller (12) input, controller (12) control signal output is connected with electric putter (9) control end.
4. A powder sampling apparatus as defined in claim 3, wherein: spiral delivery mechanism (1) includes pipeline (1.1), be equipped with rotation axis (1.2) in pipeline (1.1), be equipped with helical blade (1.3) on rotation axis (1.2), rotation axis (1.2) input is connected with servo motor (1.4), servo motor (1.4) control end is connected with controller (12), and discharge gate (1.5) have been seted up to pipeline (1.1) one side bottom.
5. The powder sampling device of claim 1, wherein: the balance tank body (2) is of a cuboid structure, the top of the balance tank body is detachably connected with the top cover (2.1), the baffle (6) and the lifting pressing plate (3) are of rectangular plate-shaped structures matched with the internal size of the balance tank body (2), and the connecting rod (4) is in sliding fit with the through hole formed in the top cover (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121588752.6U CN215985304U (en) | 2021-07-13 | 2021-07-13 | Powder sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121588752.6U CN215985304U (en) | 2021-07-13 | 2021-07-13 | Powder sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215985304U true CN215985304U (en) | 2022-03-08 |
Family
ID=80577306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121588752.6U Active CN215985304U (en) | 2021-07-13 | 2021-07-13 | Powder sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215985304U (en) |
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2021
- 2021-07-13 CN CN202121588752.6U patent/CN215985304U/en active Active
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