Powder sample weighing auxiliary device
By designing an automated powder sample weighing auxiliary device, the problems of high labor intensity and high operator proficiency in the powder sample weighing process were solved, and efficient and accurate sample weighing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, the process of weighing powder samples is labor-intensive and requires a high level of operational skill. It is also prone to sample spillage, which can contaminate the balance and affect the accuracy of weighing.
A powder sample weighing auxiliary device was designed, comprising a frame, a sample hopper, a sample leakage valve, a dual-axis stepper motor, an angle displacement sensor, and a control circuit, to realize automated sample addition and weighing, reducing manual operation.
It reduces the workload of operators, lowers the skill requirements, improves the accuracy and efficiency of weighing, and avoids sample spillage.
Smart Images
Figure CN224051422U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to weighing equipment technical field, concretely relates to a powder sample weighing auxiliary device. BACKGROUND
[0002] When carrying out experimental operation in environmental monitoring laboratory, powder sample (such as coal coke powder, ore powder, soil, etc.) is often weighed by electronic balance. In the prior art, the sample adding and weighing process is often completed manually by the analyst, and the analyst needs to carefully add sample into the container on the electronic balance little by little, which is time-consuming and laborious. When the number of sample weighing operations is large, the analyst has a high labor intensity. For the analyst who is not skilled in sample weighing, the amount of sample added each time is not easy to grasp, and if the operation is failed, the sample will be scattered on the pan of the electronic balance, polluting the electronic balance and affecting the weighing accuracy.
[0003] Therefore, there is an urgent need in the prior art for a powder sample weighing auxiliary device that can reduce the labor intensity of the operator and has low requirements on the operation proficiency of the operator. SUMMARY
[0004] The utility model discloses a kind of powder sample weighing auxiliary devices to overcome the deficiencies of prior art, can reduce the labor intensity of the operator, and has low requirements on the operation proficiency of the operator.
[0005] The utility model discloses a kind of powder sample weighing auxiliary devices, including the frame body being set to the side of electronic balance, the frame body is provided with the first connecting beam of longitudinal direction and the second connecting beam of longitudinal direction, the first connecting beam is fixedly provided with sample hopper To, the sample hopper is provided with sample bucket, the lower end of the sample bucket is formed with sample placing pipe, the sample placing pipe is located the just above of sample receiving vessel on the electronic balance, the middle section of the sample placing pipe is provided with sample leakage valve, the sample leakage valve is provided with sample leakage switch handle, the outside of the sample bucket is connected with connecting card, the connecting card is connected with oscillator, the second connecting beam is located the side of the first connecting beam, the second connecting beam is fixedly provided with support plate, the support plate is provided with double-shaft stepper motor, the front axle of the double-shaft stepper motor is connected with a transmission shaft, the front section of the transmission shaft is fixedly provided with gripper, gripper and the sample leakage switch handle are mutually opposite, the gripper clamps the sample leakage switch handle, the rear axle of the double-shaft stepper motor is connected with angle displacement sensor through coupling, still include control circuit, the control circuit is electrically connected with the oscillator, the double-shaft stepper motor, the angle displacement sensor, the outside of the electronic balance and the frame body is covered with wind shield, the wind shield is provided with sliding door, the outside of the wind shield is provided with control button electrically connected with the control circuit.
[0006] The frame body comprises a bottom plate, a stand column fixedly arranged on the bottom plate, and a cross beam arranged at the top of the stand column, and the stand column is fixedly arranged with a counterweight.
[0007] The cross beam is provided with two left and right longitudinal long strip-shaped through holes, the top end of the first connecting beam and the top end of the second connecting beam are provided with threaded heads, the lower end of the threaded head of the first connecting beam and the lower end of the threaded head of the second connecting beam are fixedly provided with limit plates, and the threaded heads of the first connecting beam and the second connecting beam are respectively connected with corresponding lock nuts by penetrating the two long strip-shaped through holes upward.
[0008] The utility model has the advantages of convenient use, reduced labor intensity of operators, easy operation, and low requirement for the operation proficiency of operators. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the structural schematic diagram of the utility model.
[0010] In the figure, 1 is an electronic balance, 2 is a sample container, 3 is an oscillator, 4 is a connecting card, 5 is a wind shield, 6 is a sliding door, 7 is a sample hopper, 8 is a sample placing tube, 9 is a sample leakage switch handle, 10 is a clamp, 11 is a first connecting beam, 12 is a second connecting beam, 13 is a sample hopper support, 14 is a double-shaft stepping motor, 15 is an angle displacement sensor, 16 is a support plate, 17 is a counterweight, 18 is a long strip-shaped through hole, 19 is a lock nut, 20 is a limit plate, 21 is a transmission shaft, 22 is a shaft coupling, 23 is a frame body, 24 is a cross beam, and 25 is a sample leakage valve. DETAILED DESCRIPTION
[0011] The utility model will be described in detail in combination with the drawings.
[0012] As Figure 1As shown, a powder sample weighing auxiliary device includes a frame 23 arranged beside an electronic balance 1, the frame 23 is provided with a first longitudinal connecting beam 11 and a second longitudinal connecting beam 12, the first connecting beam 11 is fixedly provided with a sample cup holder 13, the sample cup holder 13 is provided with a sample cup 7, the lower end of the sample cup 7 is formed with a sample pouring tube 8, the sample pouring tube 8 is located directly above a sample receiving vessel 2 on the electronic balance 1, the middle section of the sample pouring tube 8 is provided with a sample leakage valve 25, the sample leakage valve 25 is provided with a sample leakage valve handle 9, the outer side of the sample cup 7 is connected with a connecting card 4, the connecting card 4 is connected with an oscillator 3, the second connecting beam 12 is located beside the first connecting beam 11, the second connecting beam 12 is fixedly provided with a support plate 16, the support plate 16 is provided with a double-shaft stepping motor 14, the front shaft of the double-shaft stepping motor 14 is connected with a transmission shaft 21, the front section of the transmission shaft 21 is fixedly provided with a gripper 10, the gripper 10 and the sample leakage valve handle 9 are opposite to each other, the gripper 10 clamps the sample leakage valve handle 9, the rear shaft of the double-shaft stepping motor 14 is connected with an angle displacement sensor 15 through a shaft coupling 22, and the device further includes a control circuit, the control circuit is electrically connected with the oscillator 3, the double-shaft stepping motor 14 and the angle displacement sensor 15, the outer side of the electronic balance 1 and the frame 23 is covered with a wind shield 5, the wind shield 5 is provided with a sliding door 6, and the outer side of the wind shield 5 is provided with control buttons electrically connected with the control circuit.
[0013] During the experiment, the sample receiving vessel 2 is placed on the weighing pan of the electronic balance 1, the operator starts the double-shaft stepping motor 14 and the oscillator 3 through the control buttons, the double-shaft stepping motor 14 drives the sample leakage valve handle 9 to rotate and opens the sample leakage valve 25, the rear shaft of the double-shaft stepping motor 14 is connected with the angle displacement sensor 15 through the shaft coupling 22, the opening degree of the sample leakage valve 25 can be detected through the angle displacement sensor 15, the oscillator 3 vibrates, the sample falls into the sample receiving vessel 2, the electronic balance 1 weighs the sample data in real time, when the pre-weighing value is reached, the oscillator 3 is turned off, and the double-shaft stepping motor 14 drives the sample leakage valve handle 9 to act, and the sample leakage valve 25 is closed. After the operator opens the sliding door 6 to take away the sample, the next sample receiving vessel 2 is placed on the electronic balance 1, and the weighing work is performed again.
[0014] When the sample in the sample cup 7 is less, the sample in the sample cup 7 can be added at any time. When different samples are replaced, other standby sample cups 7 need to be replaced to avoid cross contamination. After the weighing is completed, the sample cup 7 is washed with distilled water and is repeatedly used after drying.
[0015] Referring to Figure 1 , the frame 23 includes a bottom plate, a stand column fixedly arranged on the bottom plate and a cross beam 24 arranged at the top of the stand column, the stand column is fixedly provided with a counterweight 17.
[0016] The crossbeam 24 is provided with two longitudinal strip-shaped through holes 18, the top end of the first connecting beam 11 and the top end of the second connecting beam 12 are provided with threaded heads, the lower end of the threaded head of the first connecting beam 11 and the lower end of the threaded head of the second connecting beam 12 are fixedly provided with limit plates 20, and the threaded heads of the first connecting beam 11 and the second connecting beam 12 are respectively connected with corresponding lock nuts 19 by penetrating the two strip-shaped through holes 18 upwards. By loosening the lock nuts 19, the corresponding positions of the first connecting beam 11 and the second connecting beam 12 can be adjusted, so that the sample leakage switch handle 9 is just clamped by the clamp 10.
[0017] The wind shield 5 is arranged outside the electronic balance 1 and the powder sample weighing auxiliary device, the side surface of the wind shield 5 is provided with a sliding door 6 for sample placing and taking.
[0018] In the utility model, the oscillation intensity of the oscillator 3 can also be set. The electronic balance 1 can be electrically connected with the control circuit, and the operation personnel need not operate the control button, so that the sample automatic adding and weighing are realized. During work, the control circuit controls the double-shaft stepping motor 14 to open the sample leakage valve 25 to the maximum opening degree, the opening degree of the sample leakage valve 25 can be detected through the angle displacement sensor 15, the oscillator 3 starts oscillation at the maximum intensity according to the preset frequency, the sample falls into the sample receiving vessel 2, and the control circuit reads the real-time weighing data of the electronic balance 1. When the sample amount approaches the preset value, the oscillation intensity of the oscillator 3 is reduced, the stepping motor drives the sample leakage switch handle 9 to act, the opening degree of the sample leakage valve 25 is reduced, the sample falling amount is reduced, until the preset weighing value is reached, the oscillator 3 is closed, and the stepping motor drives the sample leakage switch handle 9 to act, and the sample leakage valve 25 is closed.
[0019] Finally, it should be noted that the above content is only used to explain the technical scheme of the utility model, and is not a limitation on the protection scope of the utility model. Simple modifications or equivalent replacements of the technical scheme of the utility model by those skilled in the art do not deviate from the essence and scope of the technical scheme of the utility model.
Claims
1. A powder sample weighing auxiliary device, comprising a frame body arranged beside an electronic balance, characterized in that: The frame body is provided with a first connecting beam and a second connecting beam in longitudinal direction, the first connecting beam is fixedly provided with a sample cup holder, the sample cup holder is provided with a sample cup, a sample pouring tube is formed at the lower end of the sample cup, the sample pouring tube is located directly above a sample receiving container on the electronic balance, a sample leakage valve is arranged at the middle section of the sample pouring tube, the sample leakage valve is provided with a sample leakage switch handle, a connecting card is connected to the outside of the sample cup, the connecting card is connected with an oscillator, the second connecting beam is located beside the first connecting beam, the second connecting beam is fixedly provided with a support plate, the support plate is provided with a double-shaft stepping motor, the front shaft of the double-shaft stepping motor is connected with a transmission shaft, the front section of the transmission shaft is fixedly provided with a clamping device, the clamping device and the sample leakage switch handle are opposite to each other, the clamping device clamps the sample leakage switch handle, the rear shaft of the double-shaft stepping motor is connected with an angle displacement sensor through a shaft coupling, and the electronic balance and the frame body are covered with a wind shield, the wind shield is provided with a sliding door, and the wind shield is provided with a control button which is electrically connected with the control circuit.
2. The powder sample weighing aid of claim 1, wherein: The frame body comprises a bottom plate, a stand column fixedly arranged on the bottom plate, and a cross beam arranged at the top of the stand column.
3. A powder sample weighing aid according to claim 2, characterised in that: The cross beam is provided with two long strip-shaped through holes in longitudinal direction, the top end of the first connecting beam and the top end of the second connecting beam are provided with threaded heads, the lower end of the threaded head of the first connecting beam and the lower end of the threaded head of the second connecting beam are fixedly provided with limit plates, and the threaded head of the first connecting beam and the threaded head of the second connecting beam are respectively connected with corresponding lock nuts by penetrating the two long strip-shaped through holes upwards.