CN111537666A - An automatic soil organic matter detection device - Google Patents

Abstract

The invention discloses an automatic soil organic matter detection device, comprising a casing, an electric gripper, a digestion bottle, a liquid addition device, and a heating device for a funnel assembly. The casing includes a base and a vertical frame, and one side of the base is provided with There is a stand, the stand is provided with an electric gripper, and the upper end of the base is sequentially provided with a digestion bottle holder, a titration box and a digestion box for placing the digestion bottle, and a plurality of digestion bottles are connected by the digestion bottle support plate and placed on the plate. In the support of the digestion bottle, the titration box is provided with a liquid adding device, the digestion box is provided with a heating device, the funnel assembly is matched with the upper end of the digestion bottle, and a controller is arranged in the vertical frame, and the controllers are respectively It is electrically connected with the electric gripper, the liquid adding device and the heating device. The heating and digestion are carried out by replacing the existing oil bath and sand bath by the heating device, and the detection process is more environmentally friendly.

Description

An automatic soil organic matter detection device

technical field

The invention relates to the technical field of soil organic matter detection, in particular to an automatic soil organic matter detection device.

Background technique

The existing soil organic matter determination methods mainly use oil bath and sand bath as digestion devices, artificially add reagents, observe the color change of the titration process through the human eye to determine the end point, and then use a calculator to calculate the experimental data through formulas to obtain the determination. result.

The whole experimental process is mainly manual operation, which is time-consuming and labor-intensive, and the oil bath device is used to pollute the air and emit a pungent smell. The manual operation error is large, resulting in poor stability of the experimental data and large data fluctuation, which reduces the accuracy of the experimental data. sex.

SUMMARY OF THE INVENTION

In view of the above shortcomings of the prior art, the present invention provides a fully automatic soil organic matter detection device, which realizes the successive transfer of digestion bottles through electric grippers, and uses a heating device to replace the existing oil bath and sand bath for heating and digestion. The liquid device is automatically titrated, and the entire digestion process is automated, replacing manual operation, reducing experimental errors and improving the accuracy of detection; through mechanical automation, the safety of the entire experimental process is increased, and it can be tested at one time. Multiple digestion bottles are operated, which improves work efficiency and saves time.

To achieve the above object, the present invention provides the following technical solutions:

A fully automatic soil organic matter detection device, comprising a casing, an electric gripper, a digestion bottle, a liquid addition device, and a heating device for a funnel assembly, the casing includes a base and a stand, and one side of the base is provided with a stand, The stand is provided with an electric gripper, and the upper end of the base is sequentially provided with a digestion bottle bracket, a titration box and a digestion box for placing the digestion bottle. , the titration box is provided with a liquid addition device, the digestion box is provided with a heating device, the funnel assembly is matched with the upper end of the digestion bottle, and the stand is provided with a controller, which is respectively connected with the electric gripper , The liquid adding device and the heating device are electrically connected.

Preferably, the digestion bottle support includes a bottle setting plate and a side plate, side plates are arranged on both sides of the bottle setting plate, a bottom plate connected to the side plate is arranged below the bottle setting plate, and the side plate is provided with a bottom plate connected to the side plate. Bottle setting holes are evenly arranged, and liquid leakage holes are arranged on the bottom plate.

Preferably, the digestion bottle support plate is evenly provided with fixing holes matched with the digestion bottle, the side wall of the digestion bottle is provided with a limit ring, and the side wall of the digestion bottle support plate is provided with an electric gripper for grasping the first lug.

Preferably, the funnel assembly includes an upper funnel and a lower funnel, the small diameter of the upper funnel is connected to the small diameter of the lower funnel through a connecting pipe, and the side wall of the lower funnel is provided with a ring cover matched with the upper end of the digestion bottle .

Preferably, one side of the funnel support plate is provided with a slot, the slot is matched with the connecting pipe, the upper funnel is located at the upper end of the funnel support plate, and the two sides of the funnel support plate are provided with electric grippers to grab of the second lug.

Preferably, the side wall of the titration box is provided with a fan, the upper end of the titration box is provided with two first support plates, and the upper end of the first support plate is provided with a first fixing groove matched with the funnel support plate, and the two Between the blocks of the first support plates, there is an escape hole matched with the digestion bottle.

Preferably, the liquid adding device includes a fourth linear module, a visual sensor, an electric push rod and a titration rod, the fourth linear module is arranged at the bottom of the titration box, and the slider of the first linear module is provided with a support The support frame is provided with an electric push rod and a visual sensor, the piston rod of the electric push rod is provided with a titration rod, the upper end of the titration box is provided with a sliding hole, and the electric push rod is connected with The sliding hole is matched, the titration rod is located above the titration box, the installation plate is provided with a magnetic stirring, and the magnetic stirring is located below the digestion bottle.

Preferably, the magnetic stirring includes a stirring magnet and a stirring motor, the stirring motor is connected with the mounting plate, and the stirring magnet is connected with the rotating shaft of the stirring motor through a fixed piece.

Preferably, one side of the digestion box is provided with a reagent placement groove, the upper end of the digestion box is provided with two second support plates, and the upper end of the second support plate is provided with a second fixing groove matched with the funnel support plate, A heating hole is arranged between the two second support plates, and the heating device is located below the heating hole.

Compared with the prior art, the beneficial effects of the present invention are:

1. The present invention realizes the successive transfer of digestion bottles through electric grippers, and replaces the existing oil bath and sand bath with a heating device for heating and digestion. The detection process is more environmentally friendly, the liquid adding device automatically performs titration, and the entire digestion process is automated. Instead of manual operation, the experimental error is reduced and the detection accuracy is improved; through the automatic mechanical operation, the safety in the whole experimental process is increased, and multiple digestion bottles can be operated at one time, which improves work efficiency and saves money. time.

2. The digestion bottle support plate of the present invention has a simple structure, is convenient for the electric gripper to grasp, facilitates the electric gripper to extract and transfer a plurality of digestion flasks at the same time, and increases the convenience of operation.

3. The funnel support plate of the present invention can facilitate the electric gripper to grab multiple funnel assemblies at the same time and cooperate with the digestion bottle. The funnel support plate is provided with a slot, which facilitates the disassembly and assembly of the funnel assembly and is more convenient to use.

4. The funnel assembly of the present invention includes an upper funnel and a lower funnel. The upper funnel can easily add liquid and ensure that the liquid is added to the digestion bottle smoothly. The ring cover on the funnel can block the upper end of the digestion bottle, which on the one hand realizes the installation of the funnel assembly, and on the other hand, can prevent the reagent from volatilizing.

5. The present invention automatically judges the end point of the titration by means of a visual sensor, which is accurate and timely, and realizes the stirring inside the digestion bottle through magnetic stirring, which speeds up the reaction and improves the reaction speed.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the top view of the present invention;

Fig. 3 is the front view of the present invention;

Fig. 4 is the structural representation of electric gripper;

Fig. 5 is the structural representation of digestion bottle support;

Fig. 6 is the structural representation of titration box;

Fig. 7 is the structural representation of digestion box;

Fig. 8 is the structural representation of digestion bottle support plate;

Fig. 9 is the structural representation of the funnel support plate;

Fig. 10 is the structural representation of liquid adding device;

Figure 11 is a schematic structural diagram of a funnel assembly;

Figure 12 is a schematic structural diagram of a digestion flask.

In the figure: 1-chassis; 101-stand; 102-base; 2-electric gripper; 201-first linear module; 202-second linear module; 203-third linear module; 204-tube hole; 205-block; 3-digestion bottle support plate; 301-fixing hole; 302-first ear plate; 303-first lifting hole; 4-digestion bottle bracket; 401-side plate; 402-bottom plate; 403- Leakage hole; 404 - bottle setting plate; 405 - bottle setting hole; 5 - titration box; 501 - fan; 502 - first support plate; 503 - first fixing groove; 6-Digestion box; 601-Reagent placement tank; 602-Second support plate; 603-Second fixing tank; 604-Heating hole; 7-Funnel assembly; 701-Upper funnel; 702-Connecting pipe; 704-ring cover; 8-dosing device; 801-fourth linear module; 802-vision sensor; 803-electric push rod; 804-titration rod; 805-support frame; 806-stirring magnet; 807-stirring motor; 808-installation plate; 9-funnel support plate; 901-card slot; 902-second lug plate; 903-second lifting hole; 10-heating device; 11-digestion bottle; 1101-limiting ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1-3, an automatic soil organic matter detection device includes a casing 1, an electric gripper 2, a digestion bottle 11, a liquid adding device 8, a funnel assembly 7, a heating device 10, and the casing 1 includes a base 102 and Stand 101, one side of the base 102 is provided with a stand 101, the stand 101 is provided with an electric gripper 2, the upper end of the stand 101 is provided with a third linear module 203, and the third linear module 203 is vertically connected with The second linear module 202, the first linear module 201 is vertically connected to the second linear module 202, the motor gripper is installed on the first linear module 201 and is located above the base 102, and the motor gripper 2 is on the first linear module 201. The linear module 201, the second linear module 202 and the third linear module 203 can move in three directions of X/Y/Z. As shown in FIG. 4 , the electric jaw is provided with a tube hole 204 for fixing the burette, The burette is connected to the reagent bottle through a syringe pump, and is used for dripping reagents before digestion. The upper end of the base 102 is sequentially provided with a digestion bottle support 4 on which the digestion bottle 11 is placed, a titration box and a digestion box 6. A plurality of digestion bottles 11 pass through the digestion bottle holder. The plate 3 is connected and placed in the digestion bottle holder 4. In this embodiment, there are two digestion bottle holders 4, a liquid addition device 8 is arranged in the titration box, a heating device 10 is arranged in the digestion box 6, and the funnel assembly 7 is located in the It is used during heating digestion and titration. The funnel assembly 7 is matched with the upper end of the digestion bottle 11. The vertical frame 101 is provided with other electrical components such as a syringe pump, pipeline, and controller required for liquid addition. The controller adopts PLC, and the controllers are respectively It is electrically connected with the electric gripper 2 , the liquid adding device 8 and the heating device 10 .

In this embodiment, the specific structure is:

As shown in FIG. 5 , the digestion bottle holder 4 includes a bottle setting plate and a side plate 401. Side plates 401 are provided on both sides of the bottle setting plate. Two bottle setting plates are arranged in parallel. The bottom plate 402 connected by 401, and the side plate 401 are evenly provided with bottle setting holes 404, the bottle setting holes 404 are 4 rows, each row has 5 bottle setting holes 404, and they are labeled in sequence, which is convenient for setting the program for the electric gripper 2 to grasp Generally, the digestion bottle holder 4 is placed on the test bench first, and then the reagent is dispensed into the digestion bottle 11 and placed in the bottle setting hole 404. Leakage to prevent liquid from flowing onto the base 102 .

The digestion bottles 11 in each row are fixed by the same digestion bottle support plate 3, as shown in FIG. 8, the digestion bottle support plate 3 is evenly provided with fixing holes 301 that cooperate with the digestion bottles 11, as shown in FIG. There is a limit ring 1101 on the side wall of 11. After the digestion bottle 11 is put into the fixing hole 301, the limit ring 1101 is located at the upper end of the digestion bottle support plate 3, and the side wall of the digestion bottle support plate 3 is provided with an electric gripper 2 The grabbed first lug plate 302 is provided with a first hanging hole 303 on the first lug plate 302 , and a clamping block 205 which is matched with the first hanging hole 303 is provided on the electric gripper 2 .

The electric gripper 2 grabs and removes the dissolving bottle pallet 3 and moves a row of digestion bottles 11 into the digestion box 6 at the same time, as shown in FIG. , pure water, etc. are placed in the reagent placement tank 601 through the reagent bottle, the upper end of the digestion box 6 is provided with two second support plates 602, the upper end of the second support plate 602 is provided with a second fixing groove 603, two second support plates A heating hole 604 is provided between the plates 602, the heating device 10 is located below the heating hole 604, the digestion bottle 11 is placed in the heating hole 604, the bottom is located in the heating device 10, and the upper end of the second support plate 602 is provided with a funnel support plate 9. The funnel support plate 9 is provided with a funnel assembly 7 matched with the upper end of the digestion bottle 11 . The electric gripper 2 grabs the funnel support plate 9 and places the funnel assembly 7 on the upper end of the digestion bottle 11 . in,

As shown in FIG. 11 , the funnel assembly 7 includes an upper funnel 701 and a lower funnel 703 . The small diameter of the upper funnel 701 is connected to the small diameter of the lower funnel 703 through a connecting pipe 702 , and the large diameter of the lower funnel 703 is smaller than the inner diameter of the digestion bottle 11 . , the side wall of the lower funnel 703 is provided with a ring cover 704 matched with the upper end of the digestion bottle 11 , and the ring cover 704 covers the upper end of the digestion bottle 11 .

According to the structure of the funnel assembly 7 , as shown in FIG. 9 , a slot 901 is provided on one side of the funnel support plate 9 , the slot 901 is matched with the connecting pipe 702 , the upper funnel 701 is located at the upper end of the funnel support plate 9 , and the lower funnel 703 is located at the The lower end of the funnel support plate 9, the two sides of the funnel support plate 9 are provided with a second lug plate 902 for grasping by the electric gripper 2, and the second lug plate 902 is provided with a second hanging hole 903 matched with the clamping block 205, After the funnel assembly 7 is placed on the upper end of the digestion bottle 11 , both ends of the funnel support plate 9 are matched with the second fixing grooves 603 on the second support plate 602 .

The heating device 10 adopts an aluminum block, the upper end of the aluminum block is provided with a hole position matched with the digestion bottle 11, and a heating tube is arranged in the aluminum block to heat the aluminum block. During the heating process, the lower funnel 703 can condense the steam and return it to the digestion flask 11 to reduce the volatilization of the reagent.

After the heating and digestion is completed, the electric gripper 2 grabs and removes the bottle support plate 3, and moves the digestion bottle 11 together with the funnel assembly 7 into the titration box 5. As shown in FIG. 6, the side wall of the titration box 5 is provided with a fan 501. , the digestion bottle 11 is dissipated, the upper end of the titration box 5 is provided with two first support plates 502, the upper end of the first support plate 502 is provided with a first fixing groove 503 matched with the funnel support plate 9, and the two first support plates 503 Between the plates 502, there is an escape hole 504 which is matched with the digestion bottle 11.

As shown in FIG. 10 , the liquid adding device 8 includes a fourth linear module 801, a visual sensor 802, an electric push rod 803 and a titration rod 804. The fourth linear module is arranged at the bottom of the titration box, and the sliding of the first linear module 201 A support frame 805 and a mounting plate 808 are arranged on the block, an electric push rod 803 and a visual sensor 802 are arranged on the support frame 805, a titration rod 804 is arranged on the piston rod of the electric push rod 803, and a sliding hole 505 is arranged at the upper end of the titration box. , the sliding hole 505 is on the side of the abdication hole, the electric push rod 803 cooperates with the sliding hole 505, the titration rod 804 is located above the titration box, and three burettes are connected to the titration rod 804. The reagent bottles are connected, one is a burette, the other is a pure water tube, and the other is an indicator tube. The mounting plate 808 is provided with a magnetic stirrer, which is located below the digestion bottle 11. The magnetic stirrer includes a stirring magnet 806 and a stirring motor 807 , the stirring motor 807 is connected with the mounting plate 808, and the stirring magnet 806 is connected with the rotating shaft of the stirring motor 807 through the fixed piece.

The staff put the sample to be tested into the digestion bottle 11, and then put the digestion bottle 11 into the positioning hole 405 of the digestion bottle holder 4, and the electric gripper 2 passed the burette to the first row of No. 1-5 digestion bottles 11 in turn. Add 10ml potassium dichromate solution, then clamp the digestion flask support plate 3 and move the five digestion flasks 11 to the digestion box 6 , the electric gripper 2 grabs the funnel support plate 9 and places the funnel assembly 7 on the upper end of the digestion flask 11 , the heating device 10 heats the digestion bottle 11 for 10 min. After digestion, the liquid addition device 8 is used to add pure water to the upward funnel 701. After the addition, grab the funnel support plate 9 and put the funnel assembly 7 back to its original position. At this time, the titration rod 804 descends, titrate the digestion bottles 11 one by one, and determine the end point by the visual sensor 802 . After the titration is completed, the electric gripper 2 returns the five digestion bottles 11 to the digestion bottle holder 4 .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (9)

1. a fully automatic soil organic matter detection device, is characterized in that: comprise casing, electric gripper, digestion bottle, liquid adding device, funnel assembly heating device, described casing comprises base and stand, a The side is provided with a stand, and the stand is provided with an electric gripper. The upper end of the base is sequentially provided with a digestion bottle support, a titration box and a digestion box for placing the digestion bottles. It is placed in the support of the digestion bottle, the titration box is provided with a liquid adding device, the digestion box is provided with a heating device, the funnel assembly is matched with the upper end of the digestion bottle, and a controller is arranged in the stand, and the control The device is respectively electrically connected with the electric gripper, the liquid adding device and the heating device. 2. A kind of automatic soil organic matter detection device as claimed in claim 1, is characterized in that: described digestion bottle support comprises bottle setting plate and side plate, and both sides of described bottle setting plate are provided with side plate, described bottle setting plate is provided with side plate, described A bottom plate connected to the side plate is arranged below the bottle setting plate, bottle setting holes are evenly arranged on the side plate, and liquid leakage holes are arranged on the bottom plate. 3 . The automatic soil organic matter detection device according to claim 1 , characterized in that: the support plate of the digestion bottle is evenly provided with fixed holes matched with the digestion bottle, and the side wall of the digestion bottle is provided with a limiter. 4 . The position ring is provided on the side wall of the digestion bottle support plate with a first lug plate for grasping by the electric gripper. 4 . The automatic soil organic matter detection device according to claim 1 , wherein the funnel assembly comprises an upper funnel and a lower funnel, and the small diameter of the upper funnel is connected to the small diameter of the lower funnel through a connecting pipe. 5 . , the side wall of the lower funnel is provided with a ring cover matched with the upper end of the digestion bottle. 5 . The automatic soil organic matter detection device according to claim 4 , wherein a clamping slot is provided on one side of the funnel support plate, the clamping slot is matched with the connecting pipe, and the upper funnel is located in the funnel. 6 . The upper end of the support plate and the two sides of the funnel support plate are provided with second lugs for grasping by the electric clamping jaws. 6 . The automatic soil organic matter detection device according to claim 1 , wherein a fan is arranged on the side wall of the titration box, and two first support plates are arranged on the upper end of the titration box. 6 . The upper end of a support plate is provided with a first fixing groove which is matched with the funnel support plate, and an abdication hole matched with the digestion bottle is arranged between the two first support plates. 7. The automatic soil organic matter detection device according to claim 1, wherein the liquid adding device comprises a fourth linear module, a visual sensor, an electric push rod and a titration rod, and the fourth linear module It is located at the bottom of the titration box, the slider of the first linear module is provided with a support frame and a mounting plate, the support frame is provided with an electric push rod and a visual sensor, and the piston rod of the electric push rod is provided with a titration The upper end of the titration box is provided with a sliding hole, the electric push rod is matched with the sliding hole, the titration rod is located above the titration box, the installation plate is provided with a magnetic stirrer, and the magnetic stirrer is located below the digestion bottle . 8 . The fully automatic soil organic matter detection device according to claim 7 , wherein the magnetic stirring comprises a stirring magnet and a stirring motor, the stirring motor is connected with the mounting plate, and the stirring magnet is connected to the mounting plate through a fixed piece. 9 . The shaft of the stirring motor is connected. 9 . The automatic soil organic matter detection device according to claim 1 , wherein a reagent placement tank is provided on one side of the digestion box, and two second support plates are provided on the upper end of the digestion box. 10 . The upper end of the second support plate is provided with a second fixing groove matched with the funnel support plate, a heating hole is arranged between the two second support plates, and the heating device is located below the heating hole.

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