CN220170594U - Quantitative sampling device - Google Patents

Abstract

The utility model provides a quantitative sampling device, which comprises a charging barrel for storing materials; and a material pipe for conveying materials into the material cylinder; the quantitative sampling device also comprises a driving mechanism for driving the material pipe to move along the vertical direction relative to the material cylinder; the drive mechanism is configured to move the tube to adjust the length of the tube extending into the barrel. The quantitative sampling device can realize the automation of quantitative grain sampling, and greatly improve the sampling efficiency of grain samples.

Description

A quantitative sampling device

Technical field

The utility model relates to the technical field of automation equipment. More specifically, it relates to a quantitative sampling device.

Background technique

At present, quantitative sampling of samples for grain inspection and testing usually uses a tripod-type or horizontal format sampler. The samples submitted for inspection are repeatedly divided and then weighed using an electronic scale to obtain the required number of samples. This manual sampling method has shortcomings such as low efficiency and long cycle, and the dust pollution is serious. The workload of inspection personnel is heavy, and they are prone to fatigue when working for a long time.

Utility model content

In view of the above problems, the present utility model provides a quantitative sampling device that can realize the automation of quantitative sampling of grains and greatly improve the sampling efficiency of grain samples.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

The utility model provides a quantitative sampling device, which includes:

Barrels used to store materials; and

Material pipe used to transport materials into the barrel;

The quantitative sampling device further includes a driving mechanism for driving the material tube to move in a vertical direction relative to the material barrel;

The driving mechanism is configured to drive the material tube to move so as to adjust the length of the material tube extending into the barrel.

Preferably, the material pipe includes a vertical pipe arranged in a vertical direction and a downwardly inclined inclined pipe; the inclined pipe is connected with the vertical pipe.

Preferably, the driving mechanism includes a driving motor, a screw rod arranged in a vertical direction, and a sliding member arranged on the screw rod;

The screw is combined and fixed with the rotating shaft of the driving motor; the sliding member can move in the vertical direction on the screw; the material tube is combined and fixed with the sliding member.

Preferably, the quantitative sampling device further includes a support frame to support the barrel;

A discharge opening is formed on the bottom surface of the barrel; a through hole corresponding to the position of the discharge opening is provided on the support frame;

A discharge insert plate is provided between the discharge port and the through hole for blocking the discharge port.

A preferred solution is that the support frame is provided with a motion mechanism for driving the discharge insert plate to move in the horizontal direction;

The motion mechanism is a driving cylinder arranged in the horizontal direction; the discharge inserting plate is combined and fixed with the cylinder rod of the driving cylinder.

In a preferred solution, the barrel includes a barrel cover; an opening through which a feed pipe passes is formed on the barrel cover; and the driving mechanism is coupled and fixed to the barrel cover.

Preferably, the quantitative sampling device further includes a control system; both the driving mechanism and the motion mechanism are electrically connected to the control system.

The preferred solution is that the plane of the outlet of the material tube is not higher than the plane of the top surface of the barrel.

The preferred solution is that when the material capacity of the barrel is increased, the driving mechanism drives the material tube to move upward in the vertical direction relative to the barrel;

When the material capacity of the barrel is reduced, the driving mechanism drives the material tube to move downward in the vertical direction relative to the barrel.

Preferably, the quantitative sampling device further includes a distance sensor used to obtain the movement distance of the material tube.

The beneficial effects of this utility model are:

Through the cooperation of the material barrel, the material pipe and the driving mechanism, the utility model uses the driving mechanism to drive the material pipe to move vertically to adjust the length of the material pipe extending into the barrel, thereby changing the capacity of the material barrel when storing materials; it can adjust the material according to different According to the type of grain bulk density, the driving mechanism is used to adjust the vertical position of the barrel to increase or decrease the volume of the barrel to measure the required grain samples. This quantitative sampling device has a compact structure, simple operation, and a high degree of automation. It can realize the automation of grain feeding, sampling, and unloading, thereby greatly improving the sampling efficiency of grain samples and improving the overall work efficiency. This quantitative sampling device can be integrated in automatic inspection and testing equipment. The system is used to measure quantitative grain samples from mixed samples, and can also be used independently as a testing device.

Description of drawings

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Figure 1 is a schematic diagram of the overall structure of the utility model.

Figure 2 is a schematic diagram of the state of the utility model during quantitative sampling.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses.

Techniques and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques and equipment should be considered a part of the specification.

In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters refer to similar items in the following figures, so that once an item is defined in one figure, it does not need further discussion in subsequent figures.

At present, the main method of quantitative sampling for grain inspection is that inspectors will collect samples and use mechanical sampling instruments to manually divide samples. When dividing the sample, pour a certain weight of grain sample into the sample divider, divide the grain into two parts, and divide one part repeatedly. Repeat this until the required sample weight is reached, and then weigh the divided samples. This separate sampling method has low efficiency, long cycle, serious dust pollution, and heavy workload for inspection personnel.

In order to solve the problems of low efficiency and long cycle in the existing manual sampling method. The utility model provides a quantitative sampling device, as shown in Figures 1 to 2. Specifically, the quantitative sampling device includes: a barrel 8 for storing materials; and a material tube for transporting materials into the barrel 8. ; The quantitative sampling device also includes a driving mechanism 12 for driving the material tube to move in the vertical direction relative to the barrel 8; the driving mechanism 12 is configured to drive the movement of the material tube to adjust the extension of the material tube to the barrel 8 The length inside is used to change the capacity of the barrel by using the lifting and lowering of the barrel. It should be noted that the plane of the discharge port of the material pipe is not higher than the plane of the top surface of the barrel 8, ensuring that all materials flowing out from the discharge port can accurately enter the barrel 8; when the material needs to be increased When the material capacity of the barrel 8 is increased, the driving mechanism 12 drives the material tube to move upward in the vertical direction relative to the barrel 8; when it is necessary to reduce the material capacity of the barrel 8, the driving mechanism 12 drives the material tube to move relative to the material tube. The barrel 8 moves downward in the vertical direction. The quantitative sampling device can integrate the functions of feeding, removing residual grain, sample weighing, and unloading to form a complete system consisting of a barrel, a feed tube, a driving mechanism, a discharge insert, a distance sensor, a control system, etc. Set of weighing equipment. This quantitative sampling device has the characteristics of automatic feeding, unloading remaining grain, automatic adjustment of barrel volume, automatic unloading, automatic lifting and distance measurement, and has the characteristics of compact structure, simple operation, high automation and high work efficiency.

The utility model realizes the quantitative sampling function by utilizing the grain to fall into the barrel 8 through the vertical pipe 1 and accumulate and rise, and then overflow the excess grain through the inclined pipe 2. By adjusting the height of the discharge port, the storage volume of the barrel 8 can be adjusted so as to achieve the quantitative sampling function. To realize the function of variable volume sampling, the design of large barrel and thin tube can not only reduce the volume of the device but also improve the sampling accuracy. It can collect samples of different weights according to the laboratory sampling needs without manual labor.

The utility model can quantitatively sample different types of materials according to needs. By measuring the outlet height parameters of the material pipes corresponding to the volumes of the barrels 8 required for different materials, the quantitative sampling function can be realized through the height of the outlet; the same can be sampled according to needs. Different types of materials are sampled in different volumes. By adjusting the height of the discharge port, the same type of materials can be sampled in different volumes.

The utility model uses the principle that the material in the barrel 8 can be blocked by rising materials, thereby realizing the storage of materials in the barrel and the discharge of materials in the barrel, which can not only improve the quantitative sampling accuracy but also reduce the volume of the device.

In the above embodiment, in order to eliminate excess grain, the material pipe includes a vertical pipe 1 arranged in the vertical direction and a downwardly inclined inclined pipe 2; the inclined pipe 2 is connected with the vertical pipe 1; the material pipe includes The feed port, the discharge port and the diversion port are formed on the top of the vertical pipe 1, the discharge port is formed on the bottom end of the vertical pipe 1, and the diversion port is formed on the inclined tube 2; The diversion port can eliminate excess grain; through the above settings, the function of automatically feeding and eliminating excess grain samples is realized. Specifically, the grain samples that need to be weighed are first prepared, and the grain passes through the inlet and outlet. The grains are introduced into the barrel 8, and the grains continue to accumulate. When the barrel 8 is full, the grains in the barrel no longer continue to accumulate, and all begin to flow out of the diversion port, and the feeding stage ends.

Regarding the specific structure of the driving mechanism 12, the driving mechanism 12 includes a driving motor 5, a screw 7 arranged in the vertical direction, and a sliding member 4 arranged on the screw 7; the screw 7 is combined and fixed with the rotating shaft of the driving motor 5; The sliding part 4 can move in the vertical direction on the screw 7; the material tube is combined and fixed with the sliding part 4. After changing the grain variety, the height of the feed tube needs to be adjusted. The barrel 8 is located below the barrel, and the driving mechanism 12 is located on one side of the barrel. The driving mechanism 12 is fixed to the barrel 8. When the barrel needs to be adjusted, the driving mechanism 12 starts to work, and the driving motor 5 drives the screw 7 to rotate, thereby driving the sliding Part 4 moves along the vertical direction, and sliding part 4 drives the material pipe to move up and down. When the material pipe moves, the ranging sensor starts to record the moving distance and feeds it back to the control system 11. When the requirements are met, the control system 11 issues a stop-in-position signal. signal, the lifting movement of the material tube stops and the adjustment is completed.

In a specific embodiment, the quantitative sampling device further includes a support frame 10 for supporting the barrel 8; a discharge port is formed on the bottom surface of the barrel 8; the support frame 10 is provided with a There is a through hole corresponding to the position of the discharge port; a discharge insert plate 9 for blocking the discharge port is provided between the discharge port and the through hole.

Further, the support frame 10 is provided with a movement mechanism 13 for driving the discharge insert plate 9 to move in the horizontal direction; the movement mechanism 13 is a driving cylinder arranged in the horizontal direction; the discharge insert plate 9 and the drive The cylinder rod of the cylinder is fixed together.

Through the above settings, when the grain sample is no longer fed and the feeding and weighing work is completed, the discharge insert plate 9 is opened, and the grain in the barrel 8 is discharged and flows into the material receiving device. The material receiving device is located below the support frame 10 and The position of the through hole corresponds to that when all the remaining grain in the barrel 8 is discharged to the material receiving device, the discharge insert plate 9 is closed and the discharge is completed.

In a specific embodiment, the quantitative sampling device further includes a control system 11; the driving mechanism 12 and the movement mechanism 13 are both electrically connected to the control system 11; the control system 11 can control the driving mechanism 12 to drive the material tube to move vertically , the control motion mechanism 13 drives the discharge insert plate 9 to move horizontally.

In a specific embodiment, the barrel 8 includes a barrel cover; an opening through which a feed pipe passes is formed on the barrel cover; the driving mechanism 12 is combined and fixed on the barrel cover through a fixing bracket 6; The positioners 3 are installed on the upper and lower sides of the fixed frame respectively to limit the stroke of the sliding member 4; the driving motor 5 is installed on the fixed frame 6, the fixed frame 6 is fixed on the cylinder cover, and the discharge insert plate 9 is located on the support On the frame 10, the support frame 10 is fixed below the barrel 8.

In order to accurately obtain the movement distance of the material tube in the vertical direction, the quantitative sampling device also includes a distance sensor for obtaining the movement distance of the material tube; the distance sensor is electrically connected to the control system.

The working flow of the quantitative sampling device of the present utility model is as follows: the unloading insert plate 9 is in a closed state, and the grain to be quantified is gradually put into the feeding tube; the vertical pipe 1 begins to continuously and gradually unload the grain into the barrel 8; when the barrel 8 The grain inside will continue to accumulate until the outlet is blocked, and the grain will no longer flow into the barrel 8. At this time, the grain will begin to accumulate upward in the vertical pipe 1 until the accumulation height reaches the intersection of the inclined pipe 2 and the vertical pipe 1. The excess grain will flow from Inclined tube 2 overflows until all the grain to be quantified is discharged. The excess grain no longer overflows from inclined tube 2. The control system 11 sends an opening signal. The discharge insert plate 9 is driven by the driving cylinder to open the barrel 8 and the vertical pipe. The grain in 1 is released into the receiving container below the support frame 10, and a complete sample grain quantitative sampling and collection process ends.

When changing to the next type of grain or changing the range of the same type of grain, after adjusting the corresponding parameters of the control system 11, the control system 11 sends a control signal, and the driving motor 5 receives the signal and starts to rotate forward (or reverse) to drive the slider 4 Ascending (or descending), the sliding member 4 drives the material tube to perform an ascending (or descending) movement to adjust the height of the discharge port until the discharge port reaches the specified height, thereby adjusting the grain capacity of the barrel 8, thereby achieving quantitative Sampling device with variable capacity sampling function.

To sum up, the present utility model uses the cooperation of the barrel, the barrel and the driving mechanism, and uses the driving mechanism to drive the barrel to move vertically to adjust the length of the barrel extending into the barrel, thereby changing the position of the barrel when storing materials. Capacity: According to the bulk density of different types of grains, the driving mechanism can be used to adjust the vertical position of the feeding tube to increase or decrease the volume of the feeding barrel to measure the required grain samples. This quantitative sampling device has a compact structure, simple operation, and a high degree of automation. It can realize the automation of grain feeding, sampling, and unloading, thereby greatly improving the sampling efficiency of grain samples and improving the overall work efficiency. This quantitative sampling device can be integrated in automatic inspection and testing equipment. The system is used to measure quantitative grain samples from mixed samples, and can also be used independently as a testing device.

Obviously, the above-mentioned embodiments of the present invention are only examples to clearly illustrate the present invention, and are not intended to limit the implementation of the present invention. For those of ordinary skill in the art, based on the above description, Other changes or modifications can also be made in different forms. It is impossible to exhaustively enumerate all the implementation modes here. All obvious changes or modifications derived from the technical solutions of the present utility model are still within the protection scope of the present utility model. .

Claims (10)

1. A quantitative sampling device, characterized in that it includes: Barrels used to store materials; and Material pipe used to transport materials into the barrel; The quantitative sampling device further includes a driving mechanism for driving the material tube to move in a vertical direction relative to the material barrel; The driving mechanism is configured to drive the material tube to move so as to adjust the length of the material tube extending into the barrel. 2. The quantitative sampling device according to claim 1, wherein the material pipe includes a vertical pipe arranged along the vertical direction and a downwardly inclined inclined pipe; the inclined pipe is connected with the vertical pipe. 3. The quantitative sampling device according to claim 1, characterized in that the driving mechanism includes a driving motor, a screw arranged in a vertical direction and a slider arranged on the screw; The screw is combined and fixed with the rotating shaft of the driving motor; the sliding member can move in the vertical direction on the screw; the material tube is combined and fixed with the sliding member. 4. The quantitative sampling device according to claim 1, wherein the quantitative sampling device further includes a support frame to support the barrel; A discharge opening is formed on the bottom surface of the barrel; a through hole corresponding to the position of the discharge opening is provided on the support frame; A discharge insert plate is provided between the discharge port and the through hole for blocking the discharge port. 5. The quantitative sampling device according to claim 4, wherein the support frame is provided with a motion mechanism for driving the discharge insert plate to move in the horizontal direction; The motion mechanism is a driving cylinder arranged in the horizontal direction; the discharge inserting plate is combined and fixed with the cylinder rod of the driving cylinder. 6. The quantitative sampling device according to claim 1, wherein the barrel includes a barrel cover; an opening through which a feed pipe penetrates is formed on the barrel cover; and the driving mechanism is coupled and fixed to the barrel. Cover. 7. The quantitative sampling device according to claim 5, characterized in that the quantitative sampling device further includes a control system; the driving mechanism and the motion mechanism are both electrically connected to the control system. 8. The quantitative sampling device according to claim 1, characterized in that the plane of the outlet of the material tube is not higher than the plane of the top surface of the barrel. 9. The quantitative sampling device according to claim 1, characterized in that when the material capacity of the barrel is increased, the driving mechanism drives the material tube to move upward in the vertical direction relative to the barrel; When the material capacity of the barrel is reduced, the driving mechanism drives the material tube to move downward in the vertical direction relative to the barrel. 10. The quantitative sampling device according to claim 1, characterized in that the quantitative sampling device further includes a distance sensor used to obtain the movement distance of the material tube.