Multifunctional grain sample splitter

Abstract

The invention relates to a multifunctional grain sample splitter, which comprises a rotatable sample cup holder, a plurality of hollow areas distributed around the rotation axis of the sample cup holder, and a plurality of sample cups arranged on the sample cup holder, the sample cup is detachably mounted on the sample cup holder, and when the sample cup is mounted on the sample cup holder, the at least one hollow area can be covered; the device is reasonable in design structure, in the material sample separation process, different numbers of sample cups can be placed in the hollowed-out areas according to actual requirements, so that part or all of the hollowed-out areas are covered, the sample separation requirements of division, equal division and unequal division are met, and the sample separation efficiency is improved. The proportion adjustment of division, equal division and unequal division can be realized by adjusting the size of the sample cup, and the multifunctional sample dividing device has the advantages of multiple functions, good sample dividing effect, high detection efficiency and high accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of sampler design, and in particular to a multifunctional grain sampler. Background Art

[0002] The sample splitter is a pre-treatment device for detecting material ratios. Its core function is to sample out part of the sample for subsequent laboratory testing. The similar characteristics and contents of the various components in the sub-sample and the parent sample are the prerequisites for accurate testing. Currently, there are two main functions of sample splitters on the market. One is to divide the sample into several equal parts for parallel sampling, retention sampling, etc.; the other is to reduce the sample from a large number of samples to a small number of samples for subsequent testing. However, there is currently no sample splitter or sampling technology on the market that can simultaneously achieve the effects of reduction ratio adjustment, equal division score adjustment, and unequal division. In addition, the function of adjustable ratio cannot be achieved during the reduction, equal division, and unequal division processes. As a result, when sampling grains, multiple devices with different functions need to be used for sampling processing, which results in high equipment investment costs and low sampling efficiency. Summary of the invention

[0003] In order to solve the problem in the prior art mentioned in the above background technology that it is impossible to achieve reduction, equal division and unequal division on the same sampling device, the present application provides a multifunctional grain sampler.

[0004] The multifunctional grain sampler provided in this application adopts the following technical solution: A multifunctional grain sampler, comprising: A rotatable sample cup holder, the sample cup holder being provided with a plurality of hollow areas distributed around its rotation axis; The sample cup is detachably mounted on the sample cup holder, and when the sample cup is mounted on the sample cup holder, it can cover at least one hollow area.

[0005] By adopting the above technical solution, in the process of material sampling, sample cups of different numbers and sizes can be placed in the hollow area according to actual needs, so as to cover part or all of the hollow area to meet the needs of reduction, equalization and unequal sampling. For example, when performing reduction, sample cups of specified proportions can be placed in the hollow area, and the materials are located above the sample cup rack and fall under their own gravity. Since the sample cup rack can rotate at a certain speed, the materials of the specified proportion can fall into the sample cup, while other materials pass through the hollow area and fall down, thus completing the reduction effect. When performing equal division, the hollow area can be completely covered with sample cups of the same size, so that the weight of the materials falling into different sample cups can be the same during the rotation of the sample cup rack, thus achieving the equal division effect. In the process of unequal sampling, sample cups of different sizes can be placed on the sample cup rack, so that the materials can fall into different sample cups in different proportions, thus achieving the effect of unequal sampling.

[0006] Optionally, the plurality of hollow areas are evenly distributed around the rotation axis of the sample cup holder.

[0007] By adopting the above technical solution, the weight of the material falling into the hollow area can be kept uniform during the falling process, thereby improving the sampling effect.

[0008] Optionally, the sample cup holder includes a central column, partitions are evenly distributed at the outer diameter position of the lower end of the central column, the ends of the partitions are connected to outer rings, the outer rings are coaxially arranged with the central column, and the hollow area is formed in the fan-shaped area between two adjacent partitions.

[0009] By adopting the above technical solution, the area formed by the outer ring and the central column can be evenly distributed using partitions, making the hollow area more intuitive and convenient for placing the sample cup.

[0010] Optionally, a first support ring is installed on the lower surface of the partition, and the first support ring is coaxially arranged with the outer ring and close to one side of the outer ring; the lower end of the center column has a second support ring protruding along its radial direction, and the upper surface of the second support ring is coplanar with the upper surface of the first support ring, and the bottom surface of the sample cup can contact the upper surfaces of the first support ring and the second support ring.

[0011] By adopting the above technical solution, on the one hand, the first support ring and the second support ring can be used to reinforce the entire sample cup rack to improve the overall structural stability of the sample cup rack; on the other hand, it is also to enable the sample cup to be placed stably on the sample cup rack to avoid shaking or movement of the sample cup during the rotation of the sample cup rack.

[0012] Optionally, when the sample cup is installed in the hollow area, the downward projection area of ​​the single sample cup is N times the downward projection area of ​​the hollow area, where N is a number greater than zero.

[0013] By adopting the above technical solution, sample cups of different capacities can be set according to actual needs to meet the needs of different proportions of reduction, equal division and unequal division during sample division, thereby expanding its scope of application.

[0014] Optionally, also include: frame; A motor is mounted on the frame, and an output shaft of the motor is connected to the sample cup holder to drive the sample cup holder to rotate; A hopper, which is mounted on the top of the frame; The feeding device is installed on the frame and is configured to receive the material dropped from the hopper and guide the material to a position above the sample cup holder.

[0015] By adopting the above technical solution, the frame as the skeleton structure of the entire sampler can be made of square tubes, aluminum alloy profiles, etc. to improve the structural stability; the hopper is used to hold the grain raw materials, and the feeding device is mainly used to feed at a certain speed to meet the sampling needs.

[0016] Optionally, the feeding device includes a trough, a feeding end of the trough is located below the hopper, and a discharging end of the trough is located above the sample cup rack, a vibration motor is installed below the trough, a bracket is connected below the vibration motor, and an elastic member is connected between the bracket and the frame.

[0017] By adopting the above technical solution, the material falling into the trough can be moved toward the outlet end more evenly by using a vibration motor, which is beneficial to the uniformity of the falling material.

[0018] Optionally, it also includes a receiving tray, which is coaxially connected to the sample cup holder and can rotate synchronously with the sample cup holder. The receiving tray is provided with the same number of feeding channels as the hollow areas, and the feeding channels correspond to the hollow areas one by one, and the feeding channels have a conical structure that is wide at the top and narrow at the bottom.

[0019] By adopting the above technical solution, the receiving tray can be used to guide the material, thereby preventing the material from directly falling on the sample cup holder and causing material splashing.

[0020] Optionally, a material receiving funnel is also included, which is arranged below the sample cup holder.

[0021] By adopting the above technical solution, the receiving funnel can be used to receive the materials in the process of reduction or unequal sampling.

[0022] Optionally, a tray is provided below the receiving funnel.

[0023] By adopting the technical solution, the material dropped from the material receiving funnel can be contained.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: (1) The present invention has a sophisticated design structure. During the material sampling process, different numbers of sample cups can be placed in the hollow area according to actual needs, so that part or all of the hollow area is covered to meet the sampling needs of reduction, equal and unequal division, and the proportion of reduction, equal and unequal division can be adjusted by adjusting the size of the sample cups. The present invention has the advantages of functional integration, convenient use, high flexibility, good sampling effect, high detection efficiency and high accuracy.

[0025] (2) Since the present invention integrates the functions of reducing, equalizing and unequally dividing the sample into a single sample divider device, it can not only reduce the investment cost of the equipment, but also reduce the floor space occupied by the equipment in actual production. In addition, since the equipment integrates multiple sample dividing functions, it has the advantages of being easy to use, flexible, and able to be quickly adjusted according to different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a stereogram of the present invention; Figure 2 It is a three-dimensional diagram of the present invention hiding the frame and the hopper; Figure 3 It is an exploded view of the hidden frame and hopper of the present invention; Figure 4 is a three-dimensional diagram of the sample cup holder of the present invention; Figure 5 It is a three-dimensional diagram of the receiving tray of the present invention; Figure 6 is a perspective view of the feeding device of the present invention; Figure 7 It is an exploded view of the connection between the sample cup holder of the present invention and different sample cups.

[0027] Description of reference numerals: 1. Frame; 2. Hopper; 3. Tray; 4. Receiving funnel; 5. Sample cup holder; 501. Center column; 502. Outer ring; 503. First support ring; 504. Second support ring; 505. Partition; 506. Hollow area; 6. Sample cup; 7. Receiving tray; 701. Discharge channel; 8. Motor; 9. Feeding device; 901. Material trough; 902. Vibration motor; 903. Bracket; 904. Elastic part. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] As shown in the figure, the embodiment of the present application discloses a multifunctional grain sampler, comprising: A rotatable sample cup holder 5, on which a plurality of hollow areas 506 distributed around the rotation axis are provided; The sample cup 6 is detachably mounted on the sample cup holder 5 . When the sample cup 6 is mounted on the sample cup holder 5 , it can cover at least one hollow area 506 .

[0030] Among them, when the sample cup rack 5 is rotating, the grain material can be placed on the sample cup rack 5 and fall at a certain rate. At this time, the purpose of reducing, equally dividing and unequally dividing the grain material can be achieved by adjusting the number of sample cups 6. More specifically, the sample cups 6 can be set with different volumes, so that the sample proportions during reduction, equal division and unequal division can be adjusted, which has the effects of flexibility, diversity of functions and a wider range of applications.

[0031] Specifically, in one embodiment, the plurality of hollow areas 506 are evenly distributed around the rotation axis of the sample cup holder 5, such as Figure 4 As shown, there are twelve hollow areas 506 on the sample cup holder 5 , and the twelve hollow areas 506 are evenly distributed around the rotation axis of the sample cup holder 5 .

[0032] Specifically, in one embodiment, the sample cup holder 5 includes a central column 501, and partitions 505 are evenly distributed at the outer diameter position of the lower end of the central column 501. The ends of the partitions 505 are connected to the outer ring 502, and the outer ring 502 is coaxially arranged with the central column 501. The hollow area 506 is formed in the fan-shaped area between two adjacent partitions 505, wherein the central column 501, the partitions 505, and the outer ring 502 can be connected and fixed by welding.

[0033] Specifically, in one embodiment, a first support ring 503 is installed on the lower surface of the partition 505, and the first support ring 503 is coaxially arranged with the outer ring 502 and close to one side of the outer ring 502; the lower end of the central column 501 has a second support ring 504 protruding along its radial direction, and the upper surface of the second support ring 504 is coplanar with the upper surface of the first support ring 503, and the bottom surface of the sample cup 6 can contact the upper surfaces of the first support ring 503 and the second support ring 504, and the first support ring 503 and the second support ring 504 can respectively support the two ends of the sample cup 6, so that the sample cup 6 can maintain balance on the sample cup rack 5.

[0034] Specifically, in one embodiment, when the sample cup 6 is installed in the hollow area 506, the downward projection area of ​​a single sample cup 6 is twice the downward projection area of ​​the hollow area 506. Figure 7The sample cup 6a shown is placed in only one of the hollow areas 506 when it is shrunk; and is placed in all the hollow areas 506 when it is equally divided.

[0035] In another embodiment, the downward projection area of ​​a single sample cup 6 is twice the downward projection area of ​​the hollow area 506. Figure 7 The sample cup 6c shown has an upwardly recessed groove in the middle of its bottom so as not to interfere with the partition 505 in the middle when it spans across the two hollow areas 506. Thus, compared with the above-mentioned sample cup 6a, when it is shrunk, the amount of grain it can accommodate is also twice the amount of the above-mentioned sample cup 6a. When it is equally divided, all the hollow areas 506 are used to place the sample cup 6c.

[0036] In addition, in another embodiment, the downward projection area of ​​a single sample cup 6 is three times the downward projection area of ​​the hollow area 506. Figure 7 The sample cup 6b shown is similar to the above-mentioned principle of reduction and equal division, and can accommodate a larger amount of grains in the sample cup 6b.

[0037] In addition, in another embodiment, the downward projection area of ​​a single sample cup 6 is four times the downward projection area of ​​the hollow area 506, which is not shown in the figure, and the principle is the same as above. In addition, the ratio of the downward projection area of ​​a single sample cup 6 to the downward projection area of ​​the hollow area 506 can also be set according to different needs, which is not limited here.

[0038] In addition, in another embodiment, sample cups 6 of different sizes can be placed on the sample cup rack 5 at the same time, so as to achieve the effect of unequal sample division.

[0039] Specifically, it also includes: Rack 1; A motor 8 is mounted on the frame 1, and an output shaft of the motor 8 is connected to the sample cup holder 5, so as to drive the sample cup holder 5 to rotate; A hopper 2 is mounted on the top of the frame 1; The feeding device 9 is installed on the frame 1 and is configured to receive the material dropped from the hopper 2 and guide the material to a position above the sample cup holder 5 .

[0040] Specifically, the feeding device 9 includes a material trough 901, the feeding end of the material trough 901 is located below the hopper 2, and the discharging end of the material trough 901 is located above the sample cup rack 5. A vibration motor 902 is installed below the material trough 901, and a bracket 903 is connected below the vibration motor 902. An elastic member 904 is connected between the bracket 903 and the frame 1. The elastic member 904 can be a spring, which is used to make the material trough 901 vibrate slightly when the vibration motor 902 is working, so as to facilitate the discharge of materials. In other embodiments, the number of material troughs 901 can be two, three or more, and multiple material troughs 901 can be evenly distributed around the center line of the sample cup rack 5, thereby further improving the uniformity of the sampling process.

[0041] Specifically, it also includes a receiving tray 7, which is coaxially connected to the sample cup holder 5 and can rotate synchronously with the sample cup holder 5. The receiving tray 7 is provided with the same number of discharge channels 701 as the hollow areas 506, and the discharge channels 701 correspond to the hollow areas 506 one by one, and the discharge channels 701 are in a conical structure that is wide at the top and narrow at the bottom, so that the material can pass through the receiving tray 7 before falling into the sample cup holder 5 below, so as to avoid the problem of material splashing between two adjacent sample cups 6 due to structural reasons.

[0042] Specifically, it also includes a material receiving funnel 4, which is arranged below the sample cup rack 5. A tray 3 is arranged below the material receiving funnel 4. The material falling from the hollow area 506 can pass through the material receiving funnel 4 and fall into the tray 3 below to realize the collection of the material. The tray 3 and the material receiving funnel 4 are both installed on the frame 1, and the tray 3 can be pulled out so that the staff can take the material out of it.

[0043] The following is a comparison table of different sample dividers in the prior art and the sample divider of this embodiment in terms of equipment unit price, equipment volume and function: Device Name model Reference unit price Equipment size Function Laboratory grain sample automatic sampler Sinograin JFYZ-Ⅱ 60,000 yuan 890mm×600mm×400mm Can only be divided into two equal parts; the reduction ratio is adjustable Gamet Electric Rotary Sample Divider Gamet Electric Rotary Sample Divider 140,000-170,000 yuan 558mm×558×838mm Fixed ratio, equal / unequal Electric mixing and separating machine from a certain manufacturer Electric mixing and separating machine 60,000-80,000 yuan 610mm×320mm×755mm Fixed ratio, equal / unequal division (customizable division ratio) This embodiment of the invention is a machine for dividing, unequally dividing and reducing 60,000-80,000 yuan 480mm×520mm×800mm Reduction / equal division / unequal division (proportion adjustable) It can be seen from the above table that the sample divider in this embodiment has obvious advantages in terms of price, equipment footprint and usage functions. It can not only reduce the investment cost of the equipment, but also reduce the floor space occupied by the equipment in actual production. In addition, since the equipment integrates multiple sample sorting functions, it is convenient and flexible to use and can be quickly adjusted according to different needs. In actual sample sorting operations, the maximum sample sorting capacity of the sample divider in this embodiment is 15kg, the sample sorting error of small particles is ≤1%, and the sample sorting error of large particles is ≤2%, and the sample sorting effect is good.

[0044] As shown in the table above, in the existing equipment, if the functions of material reduction, equal division and unequal division need to be realized, at least two devices are required, which not only increases the difficulty of operation, but also the cost of the equipment is at least between 120,000 and 140,000 yuan; while in the present embodiment, it only costs 60,000 to 80,000 yuan to complete the above three functions, and the cost is reduced by at least 50%, which significantly improves the economic benefits; and, in terms of function, the sample divider in the present embodiment not only has the functions of reduction, equal division and unequal division, but also in actual operation, it can realize flexible adjustment of the proportion according to the actual sampling needs, while other existing sample dividers have a fixed proportion, do not have the function of flexibly adjusting the sampling proportion, and have poor flexibility.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multifunctional grain sampler, characterized in that: include: A rotatable sample cup holder (5), wherein the sample cup holder (5) is provided with a plurality of hollow areas (506) distributed around its rotation axis; The sample cup (6) is detachably mounted on the sample cup holder (5); when the sample cup (6) is mounted on the sample cup holder (5), it can cover at least one hollow area (506).

2. A multifunctional grain sampler according to claim 1, characterized in that: The plurality of hollow areas (506) are evenly distributed around the rotation axis of the sample cup holder (5).

3. A multifunctional grain sampler according to claim 1, characterized in that: The sample cup holder (5) comprises a central column (501), partitions (505) are evenly distributed at the outer diameter position of the lower end of the central column (501), the ends of the partitions (505) are connected to the outer rings (502), the outer rings (502) are coaxially arranged with the central column (501), and the hollow area (506) is formed in the fan-shaped area between two adjacent partitions (505).

4. A multifunctional grain sampler according to claim 3, characterized in that: A first support ring (503) is installed on the lower surface of the partition (505), and the first support ring (503) is coaxially arranged with the outer ring (502) and close to one side of the outer ring (502); the lower end of the central column (501) has a second support ring (504) protruding along its radial direction, and the upper surface of the second support ring (504) is coplanar with the upper surface of the first support ring (503), and the bottom surface of the sample cup (6) can contact the upper surfaces of the first support ring (503) and the second support ring (504).

5. The multifunctional grain sampler according to claim 1, characterized in that: When the sample cup (6) is installed in the hollow area (506), the downward projection area of ​​a single sample cup (6) is N times the downward projection area of ​​the hollow area (506), where N is a number greater than zero.

6. The multifunctional grain sampler according to claim 1, characterized in that: Also includes: Rack(1); A motor (8) mounted on the frame (1), wherein an output shaft of the motor (8) is connected to the sample cup holder (5) and is used to drive the sample cup holder (5) to rotate; A hopper (2) mounted on the top of the frame (1); A feeding device (9) is mounted on the frame (1) and is configured to receive material dropped from the hopper (2) and guide the material to a position above the sample cup holder (5).

7. A multifunctional grain sampler according to claim 6, characterized in that: The feeding device (9) comprises a trough (901), wherein a feeding end of the trough (901) is located below the hopper (2), and a discharging end of the trough (901) is located above the sample cup holder (5). A vibration motor (902) is installed below the trough (901), a bracket (903) is connected below the vibration motor (902), and an elastic member (904) is connected between the bracket (903) and the frame (1).

8. A multifunctional grain sampler according to any one of claims 1 to 7, characterized in that: It also includes a material receiving tray (7) which is coaxially connected to the sample cup holder (5) and can rotate synchronously with the sample cup holder (5); the material receiving tray (7) is provided with the same number of material discharge channels (701) as the number of hollow areas (506); the material discharge channels (701) correspond to the hollow areas (506) one by one, and the material discharge channels (701) are in a tapered structure that is wide at the top and narrow at the bottom.

9. A multifunctional grain sampler according to any one of claims 1 to 7, characterized in that: It also includes a material receiving funnel (4), which is arranged below the sample cup holder (5).

10. The multifunctional grain sampler according to claim 9, characterized in that: A tray (3) is provided below the material receiving funnel (4).

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