CN214096291U

CN214096291U - Laboratory automatic sample weighing device based on spiral drill bit and stirring impeller sample storage container

Info

Publication number: CN214096291U
Application number: CN202023298127.6U
Authority: CN
Inventors: 邵长伟; 滕永波; 王阳; 毕建玲; 宋慧靖; 蒿艳飞
Original assignee: Shandong Institute of Geophysical and Geochemical Exploration
Current assignee: Shandong Institute of Geophysical and Geochemical Exploration
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-31
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to an inspection check out test set technical field especially relates to an automatic appearance device that weighs in laboratory based on auger bit and impeller store up appearance container, include shaking table, agitator motor and be located on the shaking table and can with the flourishing appearance container of shaking table vibration, flourishing appearance container includes vessel and fixed spiral impeller and auger bit that sets up in vessel, spiral impeller is used for vibrating the stirring loose to the inside sample of vessel, auger bit one end is deepened the appearance hole of going out of vessel, auger bit is used for unscrewing this internal sample of vessel from going out the appearance hole, under the combined action that the vibration goes out appearance and spiral go out the appearance, has realized taking out and automatic weighing in the continuous ration of solid powder sample in the flourishing appearance container.

Description

Laboratory automatic sample weighing device based on spiral drill bit and stirring impeller 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 auger bit and impeller store 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 industry and education industry, is particularly useful for the laboratory test of systems such as ground ore deposit, 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., 0.025 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 201920406285.7-automatic branch appearance weighing device of granule or powder sample discloses a title appearance device, it is through vibration mechanism, empty the mechanism and title appearance mechanism and accomplish automatic title appearance, whole title appearance process is through empting containing the sample container, realize the title appearance of sample, nevertheless cause the sample to empty excessively easily empting the in-process of empting, and can't directly stir the sample at title appearance in-process, the phenomenon such as arch of erection, rat hole, bridging and adhesion appears easily in the sample of sample container inside, cause the vibration to go out the appearance failure.

Therefore, there is a need for a new and improved method for overcoming 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 auger bit and impeller store up appearance container, combine together through auger bit and impeller, realize loose the stirring of the continuation of sample in the flourishing appearance container to through spiral revolve the appearance and vibrate out the appearance, guaranteed the continuation of appearance, avoid solid powder to appear in near appearance hole phenomenons such as arching, rat hole, bridging and adhesion.

The technical scheme of the utility model is that:

automatic title appearance device in laboratory based on helical bit and impeller storage appearance container, include shaking table 2, agitator motor 8 and be located on shaking table 2 and can with but the flourishing appearance container 1 of shaking table 2 vibration, flourishing appearance container 1 includes vessel body 101 and fixed helical impeller 106 and the helical bit 107 that sets up in vessel body 101, helical impeller 106 is used for vibrating the stirring loose to the inside sample of vessel body 101, the play appearance hole 102 of vessel body 101 is deepened to helical bit 107 one end, helical bit 107 is used for the sample in vessel body 101 from the back-off of play appearance hole 102.

Vibrate flourishing appearance container through the shaking table, the sample in the flourishing appearance container can be continuous downward flow under the effect of vibration, and at the inside spiral impeller that sets up of container body, the realization is stirred loosely to the inside sample of container body, prevent adhesion or reunion phenomenon from appearing when the sample vibration descends, spiral impeller helical direction is downwards, the continuous downward rotation of impeller when spiral impeller is rotatory, realize the whereabouts that lasts of sample, and spiral impeller also realizes the stirring effect that lasts to the sample. The spiral drill bit is installed at the lower end of the spiral stirring impeller, one end of the spiral drill bit penetrates through the sample outlet hole of the container body, the spiral groove in the spiral drill bit is used for conveying the sample continuously downwards, and meanwhile, the spiral drill bit is used for vibrating the sample in the sample outlet hole under the action of vibration. And the sample container is internally provided with a spiral stirring impeller and a spiral drill bit which are combined to vibrate, stir and loosen the sample so as to continuously output the sample.

As a preferable technical solution, the helical stirring impeller 106 is fixedly installed on the rotating shaft 105, and the helical drill 107 is fixedly connected with the rotating shaft 105.

Spiral impeller fixed mounting can weld or through bolt fixed connection in the pivot, and the pivot is rotatory to be driven spiral impeller and is rotatory simultaneously, connects the auger bit at the lower extreme of pivot, and pivot and auger bit bolted connection or welding.

As a preferable technical solution, a first fixing plate 103 and a second fixing plate 104 for fixing the rotating shaft 105 are provided inside the container body 101.

The first fixing plate and the second fixing plate are arranged inside the container body, the first fixing plate and the second fixing plate are used for fixing the rotating shaft, shaking or inclining is avoided in the rotating process of the rotating shaft, and stability of vibration stirring is guaranteed.

As a preferred technical scheme, the stirring motor 8 is connected with the rotating shaft 105 through a coupler 9, the stirring motor 8 is fixedly installed on a motor connecting rod 7, and the motor connecting rod 7 is connected with the electric control lifting platform 6 on the vibration platform 2.

The stirring motor is connected with the rotating shaft through the coupler, and the stirring motor drives the rotating shaft to rotate, so that the sample in the sample container is stirred. Meanwhile, in the working process, the stirring motor is fixedly arranged on the motor connecting rod, and the motor connecting rod can realize height adjustment through the electric control lifting platform, so that the control and adjustment are convenient.

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 set to be in a conical structure, the falling speed of the sample is increased, 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 109 is provided at a discharge end of the container body 101, and magnets attracting each other are provided in the container base 109 and the container body 101, respectively.

The container body 101 is clamped with the container cover 108, and the container base 109 is connected with the container body 101 through magnet attraction, so that the container base 109 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 109, and a controller 10.

The utility model discloses an automatic appearance device that weighs in laboratory based on auger bit and impeller sample storage container, auger bit and impeller combined member install in sample container, solved solid powdery sample when vibrating because of the level pressure, adhesive force, cohesion, electrostatic interaction and intermolecular forces that exist between the granule often appear reunion, block up out the appearance hole, go out appearance discontinuity scheduling problem to utilize auger bit's helicla flute to screw out the sample, realized forcing out the appearance; under the combined action of vibration sample discharging and spiral sample discharging, the continuous quantitative taking out of the solid powder sample is realized.

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 first fixing plate 103, a second fixing plate 104, a rotating shaft 105, a spiral stirring impeller 106, a spiral drill bit 107, a container cover 108, a container base 109, a vibrating table 2, a base 201, a support column 202, a vibrating table top 203, a vibration limiting hole 204, a vibrator 205, a weighing sensor 3, a sample receiving vessel 4, a clamping mechanism 5, an electric control lifting table 6, a motor connecting rod 7, a stirring motor 8, a coupling 9 and a controller 10.

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:

automatic appearance device of weighing in laboratory based on auger bit and impeller store up appearance container, including containing appearance container 1, shaking table 2, weighing sensor 3, connecing appearance household utensils 4, pressing from both sides and get mechanism 5, automatically controlled elevating platform 6, motor connecting rod 7, agitator motor 8, shaft coupling 9 and controller 10.

The sample container 1 includes a container body 101, a sample outlet 102, a first fixing plate 103, a second fixing plate 104, a rotating shaft 105, a helical stirring impeller 106, a helical drill 107, a container cover 108, and a container base 109.

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 is used as a passage through which the sample is vibrated and screwed out of the container body 101 during vibration.

Two ends of the first fixing plate 103 are respectively and horizontally and rigidly connected to the inner wall of the upper part of the container body 101, and a bearing is horizontally arranged in the middle position of the first fixing plate 103; two ends of the second fixing plate 104 are respectively and horizontally and rigidly connected to the inner wall of the lower part of the container body 101, and a bearing is horizontally arranged in the middle of the second fixing plate 104; the axial leads of the two bearings are coincident with the axis of the cylindrical container body 101 in the vertical direction; the first fixing plate 103 and the second fixing plate 104 both pass through the axis of the cylindrical vessel body 101 in the horizontal direction. The two bearings are used for supporting and sleeving the rotating shaft 105, the upper end of the rotating shaft 105 penetrates through the container cover 108, and the coupling 9 and the stirring motor 8 are connected during operation so as to obtain rotating force; the lower end of the rotating shaft 105 is vertically connected with a spiral drill bit 107; the spiral stirring impeller 106 is arranged on the rotating shaft 105 in a surrounding mode and is used for loosening the sample when the sample works and rotates to prevent the sample from agglomerating. The auger bit 107 is vertically connected and installed at the lower end of the rotating shaft 105, the diameter of the auger bit 107 is smaller than that of the sample outlet hole 102, the auger bit 107 penetrates the sample outlet hole 102 in the middle and is level with the bottom end of the sample outlet hole 102, and during vibration work, a sample passes through the sample outlet hole 102 by two functions: firstly, the sample is continuously rotated in the sample outlet hole 102 through the spiral drill 107, and the sample is screwed out by the spiral groove and falls into the sample receiving vessel 4; secondly, by means of forced vibration of the container body 101, the sample is vibrated out of the sample hole 102 and falls into the sample receiving vessel 4.

Container lid 108 covers in container body 101 upper portion, and the trompil placed in the middle, sealed perforation in pivot 105 upper end are exposed on container lid 108 upper portion, and the during operation is used for being connected with shaft coupling 9, and the material is with container body 101, and the effect has two: firstly, prevent that outside impurity from getting into container body 101 inside and causing the sample contaminated, secondly during the vibration appearance, prevent that the sample splash from container body and cause the sample loss.

The container base 109 is placed on the lower portion 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 to cause sample loss. In the vibration operation, the container base 109 is removed by the gripping mechanism 5, and the sample outlet 102 is opened.

The materials of the parts of the container body 101 are selected according to the principle of no contamination of the sample.

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 table 203 and serves as a vibration source to provide vibration force to the sample in the sample container 1, so that the sample is continuously vibrated and screwed out of the sample outlet hole 102 into the sample receiving vessel 4.

The weighing sensor 3 is located right below the vibration limiting hole 204, and is used for converting mass signals of samples which are screwed out and vibrated down into electric signals to be fed back to the controller 10 during operation, and the vibrator 205 is turned on or off by means of the controller 10, 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 a sample screwed out and shaken off from the sample outlet hole 102.

The gripping mechanism 5 is horizontally arranged at the right side of the pillar 202, and has 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 109 to open or close the sample outlet hole 102.

The electric control lifting platform 6 is vertically arranged at the upper position of the right side of the pillar 202, the height of the electric control lifting platform is higher than the upper end of the rotating shaft 105, and the electric control lifting platform is used for driving the stirring motor 8 and the coupler 9 to move up and down through the motor connecting rod 7 during work so as to connect or disconnect the rotating shaft 105.

The left end of the motor connecting rod 7 is rigidly and horizontally connected with the working end of the electric control lifting platform 6, and the right end is rigidly connected with the stirring motor 8;

the stirring motor 8 is vertically arranged at the right end of the motor connecting rod 7, the motor shaft is vertically downward, the axis is superposed with the rotating shaft 105, and the shaft coupling 9 is arranged on the motor shaft.

The coupling 9 is used to quickly connect or disconnect the shaft 105.

The controller 10 is electrically connected with the vibrator 205, the weighing sensor 3, the gripping mechanism 5, the electrically controlled lifting platform 6 and the stirring motor 8, and is used for turning on or off each electric element according to a set program during working.

The working process is as follows:

1. the interior of the container main body 101 is cleaned, and the container base 109 is attached to the bottom of the container main 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 specimen 112 is poured into the container body 101, the container lid 108 is closed, the upper end of the rotary shaft 105 is exposed to the upper portion of the container lid 108, 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 switching on the commercial power of the device, switching on the weighing sensor 3 and storing initial data to be weighed.

4. And starting the electric control lifting platform 6 to enable the electric control lifting platform 6 to drive the coupler 9 to descend for a set distance, and connecting the electric control lifting platform 6 with the rotating shaft 105.

5. The gripping mechanism 5 is turned on, and the container base 109 is gripped and horizontally moved, thereby opening the sample outlet 102.

6. Starting the vibrator 205 to make the sample container 1 vibrate forcedly; and starting the stirring motor 8, driving the rotating shaft 105 to rotate through the coupler 9, driving the spiral stirring impeller 106 and the spiral drill bit 107 to rotate by the rotating shaft 105, loosening the sample, and simultaneously screwing out the sample by virtue of the spiral groove on the spiral drill bit 107. Under the combined action of vibration sample discharging and spiral sample rotating, the sample is uniformly and continuously taken out through the sample discharging hole 102, falls into the sample receiving container 4 through a free falling body, when the weight of the sample is set, a signal is fed back to the controller 10 by the weighing sensor 3, and the stirring motor 8 and the vibrator 205 are turned off; the gripping mechanism 5 is turned on to move the container base 109 back to the bottom of the container body 101, and the sample outlet 102 is closed. After the reading is stabilized, the weighing sensor 3 stores the sample weight. And starting the electric control lifting platform 6 to enable the electric control lifting platform 6 to drive the coupler 9 to ascend for a set distance and return to the original position, and disconnecting the electric control lifting platform from the rotating shaft 105.

And ending the automatic weighing process of spiral sample discharging and vibration sample discharging.

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

1. Laboratory automatic sample weighing device based on auger bit and impeller store up appearance container, include shaking table (2), agitator motor (8) and be located on shaking table (2) and can with flourishing appearance container (1) of shaking table (2) vibration, its characterized in that: flourishing appearance container (1) is including vessel (101) and fixed helical mixing impeller (106) and the auger bit (107) of setting in vessel (101), helical mixing impeller (106) are used for stirring loose to the inside sample of vessel (101), auger bit (107) one end is dark goes out appearance hole (102) of vessel (101), auger bit (107) are used for screwing out the sample in vessel (101) from going out appearance hole (102).

2. The laboratory automatic sample weighing device based on auger bit and impeller sample storage container of claim 1, wherein: the spiral stirring impeller (106) is fixedly arranged on a rotating shaft (105), and the spiral drill bit (107) is fixedly connected with the rotating shaft (105).

3. The laboratory automatic sample weighing device based on auger bit and impeller sample storage container of claim 1, wherein: a first fixing plate (103) and a second fixing plate (104) for fixing the rotating shaft (105) are arranged in the container body (101).

4. The laboratory automatic sample weighing device based on auger bit and impeller sample storage container of claim 1, wherein: stirring motor (8) are connected with pivot (105) through shaft coupling (9), stirring motor (8) fixed mounting is on motor connecting rod (7), motor connecting rod (7) with automatically controlled elevating platform (6) on shaking table (2) are connected.

5. The laboratory automatic sample weighing device based on auger bit and impeller sample storage container of claim 1, wherein: the lower end of the container body (101) is of a conical structure, and the sample outlet hole (102) is located in the center of the bottom of the container body (101).

6. The laboratory automatic sample weighing device based on auger bit and impeller sample storage container of claim 1, wherein: the open end of the container body (101) is provided with a container cover (108), the discharge end of the container body (101) is provided with a container base (109), and magnets which are mutually attracted are correspondingly arranged on the container base (109) and the container body (101).

7. The laboratory automatic sample weighing device based on auger bit and impeller sample storage container of claim 1, wherein: the vibrating table (2) comprises a base (201), a support column (202) fixedly connected with the base (201), a vibrating table top (203) fixedly connected with the support column (202) and a vibrator (205) located on the vibrating table top (203), wherein the vibrating table top (203) is provided with a vibration limiting hole (204) for limiting the sample container (1).

8. The laboratory automatic sample weighing device based on auger bit and impeller sample storage container according to any one of claims 1-7, wherein: the sample collecting device is characterized by further comprising a weighing sensor (3) positioned at the lower end of the sample containing container (1), a sample receiving vessel (4), a clamping mechanism (5) used for clamping and moving the container base (109) and a controller (10).