CN214096289U - Laboratory automatic sample weighing device based on suspension type forced vibration rod sample storage container - Google Patents

Abstract

The utility model relates to the technical field of inspection and detection equipment, in particular to a laboratory automatic sample weighing device based on a suspension type forced vibration rod sample storage container, which comprises a vibration table and a sample containing container which is positioned on the vibration table and can vibrate with the vibration table, wherein the sample containing container comprises a container body and a vibration rod suspended in the container body, the vibration rod is used for vibrating a sample in the container body and realizing the sample outlet from a sample outlet hole of the container body, the vibration rod comprises a first vibration rod and a second vibration rod movably connected with the first vibration rod, the first vibration rod is movably connected with the suspended vibration hole in the container body, a novel T-shaped suspension type forced vibration rod is designed and is internally hung in the sample containing container, not only plays the role of vibrating the sample, but also avoids the blocking phenomenon of the sample outlet hole, thereby realizing the continuous quantitative sampling and automatic weighing of the sample in the sample container.

Description

Laboratory automatic sample weighing device based on suspension type forced vibration rod sample storage container

Technical Field

The utility model relates to an inspection check out test set technical field especially relates to an automatic title appearance device in laboratory based on suspension type forced vibration stick stores up appearance container, but the wide application in trades such as agriculture, forestry, animal husbandry, mining industry, manufacturing, scientific research and technical service industry, water conservancy environment and public facilities management and education industry, is particularly useful for the laboratory detection of systems such as ground ore, environmental protection, agriculture, metallurgy, forestry, medicine, food and building materials.

Background

In a laboratory in the field of inspection and detection, weighing a sample is one of the most common and necessary operations in the laboratory, and accurate and quantitative weighing of the sample is the primary step and premise for ensuring accurate analysis and test data in the experimental test work of quantitative analysis. At present in the laboratory of inspection detection area, generally weigh the sample with electronic balance, the sample mode of title still relies on traditional pure manual operation, and the problem and the not enough that sample existence was weighed to manual work with electronic balance are: 1. cross contamination of the samples. Because the sample is weighed as many as one, the same sample weighing knife (spoon) is used by different sample weighing personnel (or the same sample weighing personnel) for many times, so that potential cross contamination among samples is caused, and the subsequent analysis and test quality is influenced. 2. The error rate is high. Because of manual operation, the sample and the vessel are often subjected to misoperation such as corresponding wrong numbers, and rework is directly caused. 3. When the samples are weighed in a constant amount, the accuracy of weighing the samples is difficult to judge and verify one by one on site; when the samples are weighed in a non-constant manner, the data are generally recorded manually one by one and cannot be automatically and instantly stored. 4. The whole sample weighing process needs manual guard, an operator needs to keep a double-arm support holding state, fatigue is easy to occur, labor intensity is high, continuous production is difficult, and production efficiency is low. 5. The whole sample weighing process completely depends on manual operation, the labor cost is high, and the economic benefit is low. Because the required sample weighing personnel are more, the personnel management difficulty and the cost are increased.

In order to solve the problems and the defects existing in manual sample weighing, the labor organization mode is thoroughly changed, a robot can be used for replacing the manual sample weighing, and the full automation of the laboratory sample weighing is realized. However, the first technical and technological problem to be solved by using a robot to weigh a sample is how to continuously and rapidly take out a small amount of sample or specimen from a sample storage container in a controllable manner without pollution. A common technically satisfactory and economically convenient way is to shake out the sample through a micro-hole or slit. However, in laboratories in the field of testing and testing, the sample or specimen used for analytical testing is in the form of powder with a small particle size, generally 20 to 325 mesh, i.e., 0.85 to 0.045mm, and mostly 120 to 200 mesh, i.e., 0.250 to 0.074 mm; and because the sample needs to be weighed as many as possible (i.e. a plurality of elements or items are analyzed and tested by one sample, and because the analysis and test task of the sample can be completely completed only by adopting a plurality of analysis and test methods due to limitation to the current technical level and process, the sample needs to be weighed for a plurality of times independently), the sample in the sample storage container can not be less than 10-50 g generally, so that the sample in the sample storage container with a small volume can form a hierarchical pressure, and in the process of vibrating the sample, due to the hierarchical pressure, adhesive force, cohesive force, electrostatic action, intermolecular action and other reasons existing among sample particles, phenomena such as arching, rat holes, bridging, adhesion and the like are easily caused in the powder sample, so that the vibrating sample discharging fails, and the automatic robot sample weighing program can not be completed.

In the prior art, chinese patent 201820596711.3-a solid powder sampling device discloses a sampling device, which realizes sampling by a vibrating funnel, and a rotatable glass rod is arranged in the funnel, and a groove at the lower end of the glass rod can drive solid powder to uniformly flow into a measuring instrument from the glass funnel, so as to realize sampling. But still can't realize carrying out the effect of vibration stirring to the inside holistic solid powder that is located glass funnel in the use, along with vibrating funnel continuous vibration, inside solid powder still has hierarchical pressure to cause the unable defect that normally flows downwards of powder, causes the vibration to go out the appearance failure.

Therefore, in light of the above-mentioned drawbacks, there is a need for further improvements to overcome the drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem among the prior art, provide an automatic appearance device that weighs in laboratory based on suspension type forced vibration stick stores up appearance container, can realize storing up the appearance container and continuously go out the appearance to avoid appearing phenomena such as solid powder frame arch, rat hole, bridging and adhesion.

The technical scheme of the utility model is that:

automatic appearance device of weighing in laboratory based on suspension type forced vibration stick stores up appearance container, include shaking table 2 and be located shaking table 2 and can with the flourishing appearance container 1 of 2 vibrations of shaking table, flourishing appearance container 1 includes vessel 101 and hangs the vibrting spear in vessel 101, the vibrting spear is used for right sample in vessel 101 vibrates and realizes that the sample goes out the appearance from vessel 101's play appearance hole 102.

The shaking table drives the vibration of flourishing appearance container, inside the being provided with vibrting spear at flourishing appearance container, the vibrting spear vibrates simultaneously with flourishing appearance container, when the vibration, the vibrting spear can vibrate the inside sample of flourishing appearance container, and go out the sample vibration around the appearance hole to flourishing appearance container, the vibration stirring of the inside whole sample of realization flourishing appearance container and the vibration stirring of the downthehole sample of appearance, the sample can continuous downward flow under the effect of gravity, accomplish out the appearance, whole process is independently realized through weighing appearance device completely, need not artifical supplementary, it is even smooth to go out the appearance effect.

As a preferable technical solution, one end of the vibrating rod is movably connected to the container body 101, and the other end of the vibrating rod passes through the sample outlet 102.

The vibrating spear is a T-shaped structure integral part, both ends position at the vibrating spear T type and the inside swing joint of vessel, the vibrating spear inserts the downthehole of vessel, and can be at downthehole activity, the lower extreme position of vibrating spear T type is deepened in the appearance hole of vessel, the vibrating spear inserts out in the appearance hole and can vibrate out the appearance to the sample that is located out the appearance hole when vibrating, the displacement of passing through the vibrating spear body upper end carries out vibration loosening to the inside sample of vessel during the vibrating spear vibration simultaneously, the sample flows downwards under the effect of gravity, the realization is to the vibration appearance of the inside sample of vessel, the vibrating spear can be controlled about the vessel relatively and beat, the realization is loose to the vibration of the inside sample of vessel.

Preferably, a hanging vibration hole 103 for hanging a vibration rod is formed in the container body 101.

The vibrating spear can be inserted into the suspended vibrating hole of the container body, and a clamping groove for mounting the vibrating spear can be formed in the inner wall of the container body, so that the vibrating spear can vibrate a sample in the jumping mode in the container body.

As a preferable technical solution, the vibrating rod includes a first vibrating rod 105 and a second vibrating rod 106 movably connected to the first vibrating rod 105, and the first vibrating rod 105 is movably connected to the hanging vibrating hole 103 inside the vessel body 101.

In the scheme, the vibrating spear is divided into two parts, wherein the first vibrating spear is connected with the container body, and the second vibrating spear is connected with the first vibrating spear. The first vibrating rod is movably connected with the container body, and the vibrating rod can be inserted into a hanging vibrating hole of the container body and also can be installed in a clamping groove of the container body. The second vibrating rod is movably connected with the first vibrating rod, and the second vibrating rod can bounce up and down, left and right relative to the first vibrating rod. When the container body vibrates to output a sample, the first vibrating rod drives the first vibrating rod to vibrate, and the first vibrating rod drives the second vibrating rod to vibrate. Further, depending on the complexity of the physical properties of the sample, the first vibrating rod may be provided with a third vibrating rod or a fourth vibrating rod. Meanwhile, a plurality of vibrating rods can be directly connected with the container body, and then a plurality of vertical vibrating rods are correspondingly arranged on each vibrating rod directly connected with the container body, so that the vibration sampling can be realized.

As a preferable technical solution, the second vibrating rod 106 is uniformly provided with vibrating wheels 107 for vibrating the sample.

Set up a plurality of vibrating wheels of evenly distributed from top to bottom on the second vibrting spear, can increase the area of contact with the sample, increase the intensity of loose vibration sample, improve and vibrate out a kind effect.

As a preferred technical solution, the vibrating wheel 107 may have a conical structure.

As a preferable technical solution, the lower end of the container body 101 is a tapered structure, and the sample outlet 102 is located at the center of the bottom of the container body 101.

In order to facilitate the sample discharge during the sample weighing process, the lower end of the container body 101 is tapered to increase the falling speed of the sample, and then the sample is discharged through the sample discharge hole 102.

As a preferable technical solution, a container cover 108 is provided at an opening end of the container body 101, a container base 104 is provided at a discharge end of the container body 101, and magnets attracting each other are provided in the container base 104 and the container body 101, respectively.

The container body 101 is clamped with the container cover 108; the container base 104 is connected with the container body 101 through a magnet, so that the container base 104 can be conveniently taken and placed, and the sample outlet hole 102 of the container body 101 can be opened or closed.

As a further preferable technical solution, the vibration table 2 includes a base 201, a pillar 202 fixedly connected to the base 201, a vibration table 203 fixedly connected to the pillar 202, and a vibrator 205 located on the vibration table 203, and the vibration table 203 is provided with a vibration limiting hole 204 for limiting the sample container 1.

As a further preferable technical solution, the sample collecting device further comprises a weighing sensor 3 located at the lower end of the sample container 1, a sample receiving vessel 4, a gripping mechanism 5 for gripping and moving the container base 104, and a controller 6.

The utility model discloses an automatic appearance device of title in laboratory based on suspension type forced vibration stick stores up appearance container, a neotype T type suspension type forced vibration stick has been designed, interior hanging is in the sample container of holding appearance of sample, not only play the effect of vibration sample, and still avoid out appearance hole blocking phenomenon to take place, the level pressure of having solved solid likepowder sample when the vibration because of between the granule exists, adhesive force, cohesion, the reunion of electrostatic action and intermolecular acting force and often appearing, block up out the appearance hole, go out appearance discontinuous scheduling problem, realize for the laboratory that the robot is automatic to title the appearance and provide new improvement scheme, help realizing the automation of title, reduce intensity of labour, improve work efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the internal structure of the sample container of the present invention;

the sample container comprises a sample container 1, a container body 101, a sample outlet hole 102, a hanging vibration hole 103, a container base 104, a first vibrating rod 105, a second vibrating rod 106, a vibrating wheel 107, a container cover 108, a vibrating table 2, a base 201, a support column 202, a vibrating table surface 203, a vibration limiting hole 204, a vibrator 205, a weighing sensor 3, a sample receiving vessel 4, a clamping mechanism 5 and a controller 6.

Detailed Description

In order to make the utility model realize that the technical means, technical characteristics, utility model purpose and technological effect are easily understood and known, combine specific figure below, further explain the utility model.

The first embodiment is as follows:

the laboratory automatic sample weighing device based on the suspension type forced vibration rod sample storage container comprises a sample storage container 1, a vibration table 2, a weighing sensor 3, a sample receiving vessel 4, a clamping mechanism 5 and a controller 6.

The sample container 1 comprises a container body 101, a sample outlet hole 102, a hanging vibration hole 103, a container base 104, a first vibrating rod 105, a second vibrating rod 106, a conical vibrating wheel 107 and a container cover 108. The first vibratory rod 105 is a horizontal vibratory rod and the second vibratory rod 106 is a vertical vibratory rod in this embodiment.

The functions of each part are as follows.

The container body 101 is used for holding a sample, and is generally made of plastic, metal (plastic in this case), and cylindrical in shape, square in shape, or other shapes (cylindrical in this case). The inner part is hollow, the wall thickness is generally 0.5 mm-10 mm, the upper part is cylindrical, the lower part is conical, and the conical taper ensures that the inclination angle of the vibration lower sample is larger than the repose angle of the sample.

The sample outlet 102 is a circular hole or a short slit (in this case, a circular hole) located at the center of the bottom of the container body 101, and has a hole diameter of 0.3mm to 5mm and a hole depth of 0.2mm to 10mm, and serves as a passage through which the sample is vibrated out of the container body 101 during vibration.

Two hanging vibration holes 103 are formed in the inner wall of the upper part of the container body 101, are opposite to each other and are not through with the outer wall of the container body 101, and are used for installing a horizontal vibration rod 105; the diameter of the hanging vibration hole 103 is larger than that of the horizontal vibration rod 105, so that the horizontal vibration rod 105 can be forced to vibrate in the hanging vibration hole 103, and the horizontal vibration rod 105 is ensured to keep a set amplitude in a working state.

The horizontal vibrating rod 105, the vertical vibrating rod 106 and the conical vibrating wheel 107 are core components for ensuring the continuous vibration and sample discharge of the sample. Two ends of a horizontal vibrating rod 105 are respectively inserted into the suspension vibrating holes 103, the upper end of a vertical vibrating rod 106 is connected to the middle position of the horizontal vibrating rod 105 in a suspension manner and is of a T-shaped structure, and a set working gap is kept at the joint of the horizontal vibrating rod 105 and the vertical vibrating rod 106 so as to ensure that the vertical vibrating rod 106 keeps a set amplitude during forced vibration; the lowest end of the vertical vibrating rod 106 passes through the sample outlet 102 and is parallel to the bottom end of the sample outlet 102, and the lowest end of the vertical vibrating rod 106 is in a vibrating state in the sample outlet 102 when forced vibration is performed, so that the sample outlet 102 is not blocked. The cone-shaped vibrating wheel 107 is mounted on the vertical vibrating rod 106 with the bottom surface of the cone down and the apex of the cone up, and the vertical vibrating rod 106 passes through the axis of the cone-shaped vibrating wheel 107. The conical vibrating wheel 107 has two functions, namely, the conical vibrating wheel is used as a balance weight, the amplitude of the horizontal vibrating rod 105 and the amplitude of the vertical vibrating rod 106 are increased during forced vibration, and the conical vibrating wheel plays a role in loosening the sample inside the container body 101, so that the sample is prevented from being subjected to forced vibration, and the sample is prevented from being subjected to arch erection, rat holes, bridging and adhesion phenomena due to agglomeration near the sample outlet hole 102, and the vibration sample outlet failure is caused.

The container cover 108 covers the upper portion of the container body 101, is made of the same material as the container body 101, and has two functions, namely, preventing external impurities from entering the container body 101 to cause sample pollution, and preventing the sample from splashing out of the container body 101 to cause sample loss during sample vibration.

The container base 104 is disposed at the lower part of the container body 101, is made of the same material as the container body 101, and is used for sealing the sample outlet 102 to prevent the sample from falling out of the container body 101 in an asymmetric sample state to cause sample loss. In the vibration operation, the container base 104 is removed by the gripping mechanism 5, and the sample outlet 102 is opened.

The sample is dry solid powder, the technical indexes such as granularity and water content need to meet the technical requirements specified by the industrial standard, and the sample is filled in the container body 101 for standby before working.

The vibration table 2 includes a base 201, a pillar 202, a vibration table 203, a vibration restricting hole 204, and a vibrator 205.

The functions of each part are as follows.

The base 201 and the pillar 202 are independently arranged on the working surface and are supporting parts of the whole vibration table 2; the vibration table 203 is connected with the support column 202 in a flexible connection mode, is horizontal to the working surface and is used for loading the sample container 1 and the vibrator 205, and the vibration table 203 is vertically provided with a vibration limiting hole 204 for limiting and inserting the sample container 1.

The vibrator 205 is mounted on the vibration platform 204 and serves as a seismic source to provide a vibration force to the sample in the sample container 1, so that the sample is continuously vibrated and flowed out of the sample outlet hole 102 into the sample receiving vessel 4.

The weighing sensor 3 is located under the vibration limiting hole 204, and is used for converting a mass signal of a sample which is vibrated and falls into an electric signal and feeding the electric signal back to the controller 6 during working, and the vibrator 205 is opened or closed by the controller 6, so that quantitative weighing is realized.

The sample receiving vessel 4 is placed on the weighing sensor 3 and is used for receiving and containing the sample shaken down from the sample outlet hole 102.

The gripping mechanism 5 is horizontally mounted on the column 202 at a height equal to the bottom of the sample container 1 inserted into the vibration limiting hole 204, and is used for gripping the movable container base 104 to open or close the sample outlet hole 102.

The controller 6 is electrically connected to the vibrator 205, the load cell 3, and the gripping mechanism 5, and operates to turn on or off the respective electric components according to a set program.

The working process is as follows:

1. the interior of the container body 101 is cleaned, and the container base 104 is attached to the bottom of the container body 101 to seal the sample outlet 102.

2. The sample container 1 is wholly limited and inserted into the vibration limiting hole 204. Then, the sample is poured into the container body 101, the container lid 108 is closed, and the sample receiving container 4 is placed on the load cell 3 so that the sample receiving port of the sample receiving container 4 faces the sample outlet 102 above.

3. And starting the commercial power of the device, connecting the weighing sensor 3 and storing initial data to be weighed.

4. The gripping mechanism 5 is turned on, and the container base 104 is gripped and horizontally moved, thereby opening the sample outlet 102.

5. The vibrator 205 is started to enable the sample to be uniformly shaken down in the sample receiving container 4 through the sample outlet 102, when the sample weighing weight is set, a signal is fed back to the controller 6 by the weighing sensor 3, the clamping mechanism 5 is switched on, the container base 104 is moved back to be installed at the bottom of the container body 101, and the sample outlet 102 is closed. Simultaneously turning off the vibrator 205 and stopping the vibration; the load cell 3 stores the sample weight. And ending the sample vibration, sample discharging and weighing process.

The device provides and designs a T-shaped suspension type vibrating spear, and the working clearance at the joint of the vibrating spear is calculated and set; the vibration amplitude of the vibrating rod is enhanced and maintained by utilizing the balance weight of the conical vibrating wheel; the powder sample is vibrated and loosened by the vibration of the vibrating rod. Through the process design, the process problems of arch erection, rat holes, bridging and adhesion of the solid powder sample near the micro sample outlet hole during vibration are solved, the continuous vibration sample outlet and automatic weighing of the solid powder sample with set weight can be completed by means of the vibrator, a core key component is provided for automatic sample weighing of a robot used in a laboratory, and the process problem is solved.

The T-shaped suspension type forced vibration rod has simple structure and ingenious conception, and is practical and effective after practical production verification; the device has low price, and is convenient for material taking, processing, popularization and use.

The sample is vibrated out by the aid of the T-shaped suspension type forced vibration rod, and the sample directly enters the sample receiving vessel after being vibrated out, so that an intermediate link of using a sample weighing knife (spoon) for manual sample weighing is omitted, the potential cross contamination among different samples is completely avoided, and the subsequent analysis and test quality is ensured.

The device can realize that the laboratory weighs the appearance automatically, has replaced the manual work, has reduced the recruitment cost, has alleviateed intensity of labour, has improved production efficiency.

In summary, the preferred embodiments of the present invention are only described, and the scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the content of the claims of the present invention shall fall within the technical scope of the present invention.

Claims (10)

1. Laboratory automatic title appearance device based on suspension type forced vibration stick stores up appearance container, include shaking table (2) and be located shaking table (2) and can with flourishing appearance container (1) of shaking table (2) vibration, its characterized in that, flourishing appearance container (1) includes vessel (101) and hangs the vibrting spear in vessel (101), the vibrting spear is used for right sample in vessel (101) vibrates and realizes that the sample goes out the appearance from play appearance hole (102) of vessel (101).

2. The laboratory automatic sample weighing device based on a suspended forced vibration rod sample storage container according to claim 1, wherein one end of the vibration rod is movably connected with the container body (101), and the other end of the vibration rod passes through the sample outlet hole (102).

3. The laboratory automatic sample weighing device based on the suspension type forced vibration rod sample storage container as claimed in claim 1, wherein the container body (101) is internally provided with a suspension vibration hole (103) for suspending a vibration rod.

4. The laboratory automated sample weighing apparatus based on a suspended forced vibration rod sample storage container according to claim 1, wherein the vibration rod comprises a first vibration rod (105) and a second vibration rod (106) movably connected with the first vibration rod (105), the first vibration rod (105) is movably connected with the suspended vibration hole (103) inside the container body (101).

5. The laboratory automatic sample weighing device based on a suspended forced vibration rod sample storage container according to claim 4, characterized in that the second vibration rod (106) is uniformly provided with a vibration wheel (107) for vibrating the sample.

6. Laboratory automated sample weighing device based on suspended forced vibration rod sample storage containers according to claim 5, characterized in that the vibration wheel (107) can be of conical structure.

7. Laboratory automated sample weighing device based on a suspended forced vibration rod sample storage container according to any of claims 1-6, characterized in that the lower end of the container body (101) is of a conical structure, and the sample outlet (102) is located at the center of the bottom of the container body (101).

8. Laboratory automated sample weighing device based on suspended forced vibration rod sample storage containers according to any of claims 1-6, characterized in that the open end of the container body (101) is provided with a container lid (108), the discharge end of the container body (101) is provided with a container base (104), and the container base (104) and the container body (101) are provided with magnets which attract each other.

9. The laboratory automatic sample weighing device based on the suspended forced vibration rod sample storage container according to any one of claims 1-6, characterized in that the vibration table (2) comprises a base (201), a pillar (202) fixedly connected with the base (201), a vibration table top (203) fixedly connected with the pillar (202), and a vibrator (205) positioned on the vibration table top (203), wherein the vibration table top (203) is provided with a vibration limiting hole (204) for limiting the sample storage container (1).

10. Laboratory automated sample weighing device based on suspended forced vibration rod sample storage containers according to any of claims 1-6, characterized by further comprising a weighing sensor (3) at the lower end of the sample storage container (1), a sample receiving vessel (4), a gripping mechanism (5) for gripping the moving container base (104) and a controller (6).

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