CN111250188A - Automatic dropwise add device of solvent - Google Patents
Automatic dropwise add device of solvent Download PDFInfo
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- CN111250188A CN111250188A CN202010186752.7A CN202010186752A CN111250188A CN 111250188 A CN111250188 A CN 111250188A CN 202010186752 A CN202010186752 A CN 202010186752A CN 111250188 A CN111250188 A CN 111250188A
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- dripping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
- B01L3/0293—Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0476—Moving receptacles, e.g. rotating receptacles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0492—Applications, solvents used
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Abstract
An automatic solvent dripping device belongs to the technical field of automatic dripping equipment. The method is characterized in that: the transverse moving device (3) is arranged on one side of the sample tray (1), the longitudinal moving device is arranged on the transverse moving device, the dripping device is arranged on the longitudinal moving device, and the moving directions of the transverse moving device and the longitudinal moving device are mutually vertical in a horizontal plane; the dripping device comprises a dripping pump and a dripping pipe (5), a dripping nozzle (13) is installed at the output end of the dripping pipe (5), the dripping nozzle (13) is in sliding connection with the dripping pipe (5), and a sealing device is arranged between the dripping nozzle (13) and the dripping pipe (5). The automatic solvent dripping device realizes the automatic addition of the solvent, and avoids the influence of toxic solvent on the health of people; a sealing device is arranged between the dripping nozzle and the dripping pipe, so that the dripping pipe is ensured to be more accurate when a solvent is dripped, the accuracy of the dripping amount of the solvent is ensured, and the pretreatment of large-batch samples can be realized.
Description
Technical Field
An automatic solvent dripping device belongs to the technical field of automatic dripping equipment.
Background
Quality problems of edible oils are often of public concern, and the first step prior to analytical testing of edible oils is to separate the analyte from the oil. The pretreatment steps are basically as follows: accurately weighing a certain amount of edible oil sample in a test tube, adding a certain amount of extraction liquid by using a glass pipette, and oscillating/heating, uniformly mixing and extracting. The step is suitable for pretreatment of a small amount of samples, manpower is needed to be added when the amount of the samples is large, meanwhile, the detection result is uneven and inaccurate due to manual operation of the solution, and great influence is brought to detection of the edible oil.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the automatic solvent adding device capable of realizing automatic solvent adding and ensuring accurate solvent adding is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: the automatic dropwise add device of this solvent, its characterized in that: the device comprises a sample tray, a transverse moving device, a longitudinal moving device and a dripping device, wherein the sample tray is provided with a plurality of test tube holes;
the dropwise add device is including dropwise add pump and dropwise add pipe, and the output of dropwise add pump is linked together with the input of dropwise add pipe, and the dropwise add mouth is installed to the output of dropwise add pipe, dropwise add mouth and dropwise add pipe sliding connection, and the lower part of dropwise add mouth is the toper by the supreme diameter crescent down, is provided with closing device between dropwise add mouth and the dropwise add pipe, and the suitable for reading of test tube hole is the toper by the increase between the supreme diameter down.
Preferably, the closing device comprises a sealing plug, the upper end of the dripping nozzle is slidably sleeved outside the lower end of the dripping pipe, the sealing plug is arranged in the dripping nozzle and synchronously ascends and descends along with the dripping nozzle, the sealing plug is cylindrical and is coaxial with the dripping pipe, and the upper part of the sealing plug is provided with a conical sealing part with the diameter gradually reduced from bottom to top.
Preferably, the diameter of the middle part of the dropping pipe is larger than the diameters of the two ends, and a buffer cavity is formed in the middle part of the dropping pipe.
Preferably, the transverse moving device comprises a transverse moving motor, a transverse moving rack and a transverse shifting wheel, the transverse moving rack is slidably mounted on the sample tray, the transverse shifting wheel is horizontally arranged on one side of the transverse moving rack, an output shaft of the transverse moving motor is connected with the transverse shifting wheel and drives the transverse shifting wheel to rotate, a transverse shifting tooth used for shifting the transverse moving rack is arranged on one side of the transverse shifting wheel, and the longitudinal moving device is connected with the transverse moving rack.
Preferably, the longitudinal moving device comprises a longitudinal moving motor, a longitudinal moving rack and a longitudinal shifting wheel, the longitudinal moving rack is slidably mounted on the transverse moving device, the longitudinal shifting wheel is horizontally arranged on one side of the longitudinal moving rack, an output shaft of the longitudinal moving motor is connected with the longitudinal shifting wheel and drives the longitudinal shifting wheel to rotate, at least two groups of longitudinal shifting teeth for shifting the longitudinal moving rack are arranged on the side portion of the longitudinal shifting wheel at intervals, and the dripping device is arranged on the longitudinal moving rack.
Preferably, the longitudinal moving device is connected with a control circuit.
Preferably, the control circuit comprises a power supply U, a switch S, a motor M, contactors KM 1-KM 2 and travel switches SQ 1-SQ 2, wherein the positive electrode of the power supply U is simultaneously connected with one end of a normally open contact KM1-1 of a contactor KM1, one end of a normally closed contact KM2-2 of the contactor KM2, one end of a coil of the contactor KM1 and one end of a coil of the contactor KM2, the other end of the normally open contact KM1-1 of the contactor KM1 is simultaneously connected with one end of the motor M and one end of a normally closed contact KM2-1 of the contactor KM2, the other end of the normally closed contact KM2-1 of the contactor KM2 is connected with one end of the switch S, the other end of the motor M is simultaneously connected with the other end of a normally closed contact KM2-2 of the contactor KM2 and one end of a normally open contact KM1-2 of, the other end of the coil of the contactor KM1 is connected in series with a normally closed contact KM2-3 of a contactor KM2 and then is simultaneously connected with one end of a normally open contact KM1-4 of a contactor KM1 and one end of a travel switch SQ1, the other end of the normally open contact KM1-4 of the contactor KM1 and the other end of the travel switch SQ1 are simultaneously connected with one end of a switch S, the other end of the coil of the contactor KM2 is connected in series with a normally closed contact KM1-3 of a contactor KM1 and then is simultaneously connected with one end of a normally open contact KM2-4 of a contactor KM2 and one end of a travel switch SQ2, the other end of the normally open contact KM2-4 of the contactor KM2 and the other.
Preferably, still include controlling means, the input of dropwise add device is connected with many feed liquor pipes simultaneously, all is provided with the feed liquor valve on every feed liquor pipe, and controlling means's signal output part links to each other with a plurality of feed liquor valves simultaneously.
Preferably, the dropping devices are provided with at least two.
Compared with the prior art, the invention has the beneficial effects that:
1. the transverse moving device and the longitudinal moving device of the automatic solvent dripping device are matched to drive the dripping device to move, so that the automatic solvent addition is realized, manual dripping one by one is not needed, and the influence of toxic solvents on the health of people is avoided; be provided with closing device between dropwise add mouth and the dropwise add pipe to guarantee that the dropwise add pipe is more accurate when dropwise add solvent, guaranteed that the solvent dropwise add volume is accurate, and then guaranteed that the experimental result is more accurate, can realize the pretreatment of big batch sample.
2. The upper portion of sealing plug is provided with conical sealing, and when shifting out the dropwise add mouth test tube hole, dropwise add mouth and test tube hole phase-match promote dropwise add mouth to shift up, and the sealing plug shifts up with dropwise add mouth in step to realized the closure of dropwise add pipe, when dropwise add mouth and test tube hole alignment, the sealing plug is opened under the pressure effect, thereby continued to add the solvent, realized the automatic of solvent and closed and open.
3. The diameter of the middle part of the dripping pipe is larger than the diameters of the two ends to form a buffer cavity, when the dripping nozzle is closed, the dripping pump does not need to be stopped, the solvent is cached in the buffer cavity, and the damage caused by frequent starting and stopping of the dripping pump is avoided.
4. The transverse moving motor stirs the transverse moving rack to move through the transverse shifting teeth on the transverse shifting wheel, so that the intermittent motion of the transverse moving rack is realized, the transverse moving motor does not need to be started or stopped frequently, and the transverse moving motor is prevented from being damaged.
5. The longitudinal moving motor stirs the longitudinal moving rack to move through the longitudinal shifting teeth on the longitudinal shifting wheel, so that the intermittent motion of the longitudinal moving rack is realized, the longitudinal moving motor does not need to be started or stopped frequently, and the damage to the longitudinal moving motor is avoided.
6. Reciprocating rotation of the motor M is realized through the stroke switches SQ1 and SQ2, and then the test tubes in one row of test tube holes can be added and completed, and the solvent is added to the other row of test tube holes in a reverse motion mode without artificial participation, so that the automation degree is high.
7. The control device can control the opening and closing of the liquid inlet valve, and when the solvent is dripped into the test tube hole on the sample tray, the solvent corresponding to the dripped solvent in the test tube hole corresponding to the sample tray can be set through the control device, so that the use is convenient.
8. The dropwise add device is provided with at least two to can the dropwise add multiple solvent, and every dropwise add device is equal independent work, thereby can enough be for simultaneously for a plurality of test tube holes dropwise add the same solvent, also can the dropwise add different solvents simultaneously, the dropwise add is convenient, can realize the pretreatment of big batch sample.
Drawings
FIG. 1 is a schematic top view of an automatic solvent dropping apparatus.
Fig. 2 is a schematic structural diagram of the transverse moving device and the longitudinal moving device.
FIG. 3 is a schematic sectional view of the dropping tube and the test tube hole.
Fig. 4 is a circuit diagram of a control circuit of the longitudinal motor.
1. The device comprises a sample plate 2, a test tube hole 3, a transverse moving device 4, a longitudinal moving device 5, a dropping tube 6, a transverse shifting wheel 601, a transverse shifting tooth 7, a transverse moving rack 8, a transverse moving rack 9, a longitudinal moving rack 10, a longitudinal moving rack 11, a longitudinal shifting wheel 1101, a longitudinal shifting tooth 12, a buffer cavity 13, a dropping nozzle 14 and a sealing plug.
Detailed Description
Fig. 1 to 4 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 4.
An automatic solvent dripping device comprises a sample tray 1, a transverse moving device 3, a longitudinal moving device 4 and a dripping device, wherein a plurality of test tube holes 2 are formed in the sample tray 1, the transverse moving device 3 is installed on one side of the sample tray 1, the longitudinal moving device is installed on the transverse moving device, the dripping device is installed on the longitudinal moving device, and the moving directions of the transverse moving device and the longitudinal moving device are mutually vertical in a horizontal plane; the dropwise add device is including dropwise add pump and dropwise add pipe 5, and the output of dropwise add pump is linked together with the input of dropwise add pipe 5, and dropwise add mouth 13 is installed to the output of dropwise add pipe 5, dropwise add mouth 13 and dropwise add 5 sliding connection of pipe, and the lower part of dropwise add mouth 13 is the toper by the diameter crescent of supreme down, is provided with closing device between dropwise add mouth 13 and the dropwise add pipe 5, and the suitable for reading of test tube hole 2 is the toper by the increase between the supreme diameter of lower. The transverse moving device and the longitudinal moving device of the automatic solvent dripping device are matched to drive the dripping device to move, so that the automatic solvent addition is realized, manual dripping one by one is not needed, and the influence of toxic solvents on the health of people is avoided; be provided with closing device between dropwise add mouth 13 and dropwise add pipe 5 to guarantee that dropwise add pipe 5 is more accurate when dropwise add solvent, guaranteed that the solvent dropwise add volume is accurate, and then guaranteed that the experimental result is more accurate.
The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.
Example 1
As shown in fig. 1: sample dish 1 is the cuboid, is provided with test tube hole 2 on the sample dish 1, and test tube hole 2 intervals are provided with a plurality ofly, and a plurality of test tube holes 2 interval equipartitions on sample dish 1, the bottom of sample dish 1 are provided with the heating plate to guarantee the maintenance constant temperature of the test tube on the sample dish 1, so that the sample maintains suitable temperature. The bottom of sample dish 1 is provided with electromagnetic vibrator, can shake even to the sample and the solvent in test tube hole 2. Set up temperature detect switch on the sample dish 1, temperature detect switch links to each other with the heating plate to can adjust the temperature of sample dish 1 as required, and can be sample dish 1 automatic maintenance constant temperature.
The transverse moving device is installed on the sample tray 1, the longitudinal moving device is installed on the transverse moving device, the dripping device is installed on the longitudinal moving device, the transverse moving device moves transversely in the horizontal plane, and the longitudinal moving device moves longitudinally in the horizontal plane, so that the dripping device can add the solvent to the test tubes in each test tube hole 2.
As shown in fig. 2: the transverse moving device comprises a transverse moving motor, a transverse moving rack 8 and a transverse shifting wheel 6, a transverse moving frame 7 is arranged on the sample plate 1 in a sliding mode, a horizontal transverse guide rail is arranged on one side of the sample plate 1, the transverse moving frame 7 is arranged on the transverse guide rail in a sliding mode, the transverse moving rack 8 is horizontally arranged on the transverse moving frame 7, the transverse moving motor is arranged on the sample plate 1, an output shaft of the transverse moving motor is vertically arranged, and the transverse shifting wheel 6 and the output shaft are coaxially arranged, and rotates synchronously with the transverse shifting wheel 6, one side of the transverse shifting wheel 6 is provided with a transverse shifting tooth 601, one group of transverse shifting teeth 601 is provided, the transverse shifting teeth 601 are meshed with the transverse moving rack 8, therefore, in the process of continuous work of the transverse moving motor, the intermittent motion of the transverse moving rack 8 is realized, the transverse moving motor does not need to be started or stopped frequently, and the damage of the transverse moving motor is avoided. The lateral pick-up teeth 601 are provided only in one set, so that sufficient time can be left for dripping the solvent in the corresponding row of test tube holes 2.
The longitudinal moving device comprises a longitudinal moving motor, a longitudinal moving rack 10 and a longitudinal shifting wheel 11, wherein the longitudinal moving rack 9 is slidably mounted on the transverse moving rack 7, a horizontal longitudinal guide rail is mounted on one side of the transverse moving rack 7 and is perpendicular to the transverse guide rail, the longitudinal moving rack 9 is slidably mounted on the longitudinal guide rail, the longitudinal moving rack 10 is horizontally mounted on the longitudinal moving rack 9, the longitudinal moving motor is mounted on the transverse moving rack 7, an output shaft of the longitudinal moving motor is vertically arranged, the longitudinal shifting wheel 11 and the output shaft are coaxially arranged and synchronously rotate along with the output shaft, one side of the longitudinal shifting wheel 11 is provided with a longitudinal shifting tooth 1101, only one group of the longitudinal shifting teeth 1101 is arranged, and the longitudinal shifting tooth 1101 is meshed with the longitudinal moving rack 10, so that the intermittent movement of the longitudinal moving rack 10 is realized in the continuous working process of the longitudinal moving motor, and the longitudinal moving motor does not need to be frequently started and, the damage of the longitudinal movement motor is avoided. Four groups of longitudinal shifting teeth 101 are uniformly distributed at intervals, so that the dripping of the solvent into each test tube hole 2 in each row can be realized.
As shown in fig. 3: the dropwise add device is including dropwise add pump and dropwise add pipe 5, the vertical setting of dropwise add pipe 5, the upper end of dropwise add pipe 5 is the input, the lower extreme is the output, the upper end of dropwise add pipe 5 is installed on longitudinal movement frame 9, the middle part diameter of dropwise add pipe 5 is greater than the diameter at both ends to form cushion chamber 12 at the middle part of dropwise add pipe 5, the buffering of solvent has been realized, the dropwise add pump lasts work, can realize the intermittent type interpolation of liquid, avoid causing the damage to the dropwise add pump. The input end of the dripping pump is communicated with the bottom of the container for containing the solvent, and the output end of the dripping pump is communicated with the input end of the dripping pipe 5.
The lower extreme of dropwise add pipe 5 is provided with dropwise add mouth 13, the upper end slip cover of dropwise add mouth 13 is established outside the outer end of dropwise add pipe 5, the lower extreme that encircles dropwise add pipe 5 is provided with outside turn-ups, the upper end that encircles dropwise add mouth 13 is provided with inside turn-ups, the inside turn-ups slides and sealing connection with the inner wall of dropwise add mouth 13, turn up all the way with the inner wall slip and sealing connection of dropwise add pipe 5, thereby realized dropwise add spacing of mouth 13, closing means sets up in dropwise add mouth 13, the lower part of dropwise add mouth 13 is for reducing the toper from top to bottom diameter gradually, the upper end of test tube hole 2 is the toper that the diameter increases gradually from bottom to top, thereby when dropwise add mouth 13 removed, rely on the upper port of test tube hole 2 to realize shifting up of dropwise add mouth.
The sealing device comprises a sealing plug 14, the sealing plug 14 is arranged in a dropping nozzle 13, the sealing plug 14 and the dropping nozzle 13 are lifted synchronously, a channel for a solvent to pass through is arranged between the sealing plug 14 and the dropping nozzle 13, the sealing plug 14 and the dropping pipe 5 are coaxially arranged, the upper part of the sealing plug 14 is provided with a conical sealing part with the diameter gradually reduced from bottom to top, the sealing part stretches into the lower end of the dropping pipe 5, the sealing of the dropping pipe 5 is realized, the sealing effect is good, and the automatic on-off of the solvent in the dropping pipe 5 is realized.
As shown in fig. 4: the longitudinal moving device is connected with a control circuit, and the circuit of the motor of the transverse moving device is the same as that of the longitudinal moving motor. The control circuit comprises a power supply U, a switch S, a motor M, contactors KM 1-KM 2 and travel switches SQ 1-SQ 2, wherein the positive electrode of the power supply U is simultaneously connected with one end of a normally-open contact KM1-1 of a contactor KM1, one end of a normally-closed contact KM2-2 of the contactor KM2, one end of a coil of the contactor KM1 and one end of a coil of the contactor KM2, the other end of the normally-open contact KM1-1 of the contactor KM1 is simultaneously connected with one end of the motor M and one end of a normally-closed contact KM2-1 of the contactor KM2, the other end of the normally-closed contact KM2-1 of the contactor KM2 is connected with one end of a switch S, the other end of the motor M is simultaneously connected with the other end of a normally-closed contact KM2-2 of the contactor 2 and one end of a normally-open contact KM1-2 of the contactor KM1, the normally-open contact KM 86 One end of a normally open contact KM1-4 and one end of a travel switch SQ1 of a device KM1, the other end of a normally open contact KM1-4 and the other end of a travel switch SQ1 of a contactor KM1 are simultaneously connected with one end of a switch S, the other end of a coil of the contactor KM2 is connected with one end of a normally open contact KM2-4 and one end of a travel switch SQ2 of a contactor KM2 after being connected with the normally closed contact KM1-3 of the contactor KM1 in series, the other end of a normally open contact KM2-4 and the other end of a travel switch SQ2 of the contactor KM2 are simultaneously connected with one end of the switch S. The motor M is the above-mentioned longitudinal moving motor.
And (3) closing the switch S, rotating the motor, moving the dripping nozzle 13, closing a travel switch SQ1 when touching a travel switch SQ1, electrifying a coil of the contactor KM1, acting a contact of the contactor KM1, reversely connecting the positive electrode and the negative electrode of the motor M, reversely rotating the motor M and reversely moving the dripping nozzle 13, so that automatic reversing of the dripping nozzle 13 is realized, manual participation is not needed, and the automation degree is high.
In this application, the solvent can directly add in test tube hole 2, also can place the test tube in test tube hole 2, and the solvent dropwise add is in test tube hole 2's test tube. The solvent of the test tube hole 2 is 10-100 ml to meet the requirements of the experiment. In this embodiment, the dropwise add device is provided with two at least to can enough be simultaneously the same solvent of 2 droppings of test tube hole, with the speed that improves the solvent dropwise add, can dropwise add different solvents again, the dropwise add is convenient, can realize the pretreatment of big batch sample.
Example 2
Example 2 differs from example 1 in that: the dropping pipe 5 is in a vertical cylindrical shape, the dropping pump is a metering pump, or a metering valve is arranged on the dropping pipe 5, so that the accurate control of the dropping amount of the solvent is realized.
In this embodiment, the dropwise add device has and only one, and this automatic dropwise add device of solvent still includes controlling means, and controlling means is PLC controller or singlechip, and the input of dropwise add device is connected with many feed liquor pipes simultaneously, and in every feed liquor pipe all stretched into the container that corresponds, all was provided with the feed liquor valve on every feed liquor pipe. The signal output end of the control device is simultaneously connected with the plurality of liquid inlet valves, so that the category of the dropwise added solvent can be controlled. The control device is also connected with the transverse moving device 3 and the longitudinal moving device 4, and adjusts the position of the dropping pipe 5 according to the requirement. Through the kind of the dropwise add of the solvent of every test tube hole 2 on the controlling means is last to set up sample tray 1, controlling means when controlling lateral shifting device 3 and longitudinal movement device 4 and remove, can also real-time supervision with dropwise add 5 test tube holes 2 of adjusting well to the solvent that corresponds for 2 dropwise add of every test tube hole that can be accurate, the dropwise add is convenient.
The dropping pipe 5 can also be connected with a flushing pump, water is pumped through the flushing pump to clean the dropping pipe 5, and the mutual interference of different types of solvents during dropping is avoided.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides an automatic dropwise add device of solvent which characterized in that: the device comprises a sample tray (1), a transverse moving device (3), a longitudinal moving device (4) and a dripping device, wherein a plurality of test tube holes (2) are formed in the sample tray (1), the transverse moving device (3) is installed on one side of the sample tray (1), the longitudinal moving device is installed on the transverse moving device, the dripping device is installed on the longitudinal moving device, and the moving directions of the transverse moving device and the longitudinal moving device are mutually vertical in a horizontal plane;
the dropwise add device is including dropwise add pump and dropwise add pipe (5), the output of dropwise add pump is linked together with the input of dropwise add pipe (5), dropwise add mouth (13) are installed to the output of dropwise add pipe (5), dropwise add mouth (13) and dropwise add pipe (5) sliding connection, the lower part of dropwise add mouth (13) is for the toper by supreme diameter crescent down, be provided with the closing means between dropwise add mouth (13) and dropwise add pipe (5), the last mouthful of test tube hole (2) is the toper by the increase between supreme diameter down.
2. The automatic solvent dropwise adding device according to claim 1, characterized in that: the sealing device comprises a sealing plug (14), the upper end of the dripping nozzle (13) is slidably sleeved outside the lower end of the dripping pipe (5), the sealing plug (14) is arranged in the dripping nozzle (13) and synchronously ascends and descends along with the dripping nozzle, the sealing plug (14) is cylindrical and is coaxially arranged with the dripping pipe (5), and the upper part of the sealing plug (14) is provided with a conical sealing part with the diameter gradually reduced from bottom to top.
3. The automatic solvent dropping apparatus according to claim 1 or 2, characterized in that: the diameter of the middle part of the dropping pipe (5) is larger than the diameters of the two ends, and a buffer cavity (12) is formed in the middle part of the dropping pipe (5).
4. The automatic solvent dropwise adding device according to claim 1, characterized in that: the horizontal moving device comprises a horizontal moving motor, a horizontal moving rack (8) and a horizontal shifting wheel (6), the horizontal moving rack (8) is slidably mounted on the sample tray (1), the horizontal shifting wheel (6) is horizontally arranged on one side of the horizontal moving rack (8), an output shaft of the horizontal moving motor is connected with the horizontal shifting wheel (6) and drives the horizontal shifting wheel to rotate, a horizontal shifting tooth (601) used for shifting the horizontal moving rack (8) is arranged on one side of the horizontal shifting wheel (6), and the longitudinal moving device is connected with the horizontal moving rack (8).
5. The automatic solvent dropwise adding device according to claim 1, characterized in that: the longitudinal moving device comprises a longitudinal moving motor, a longitudinal moving rack (10) and a longitudinal shifting wheel (11), wherein the longitudinal moving rack (10) is slidably mounted on the transverse moving device, the longitudinal shifting wheel (11) is horizontally arranged on one side of the longitudinal moving rack (10), an output shaft of the longitudinal moving motor is connected with the longitudinal shifting wheel (11) and drives the longitudinal shifting wheel to rotate, at least two groups of longitudinal shifting teeth (1101) for shifting the longitudinal moving rack (10) are arranged on the side portion of the longitudinal shifting wheel (11) at intervals, and the dripping device is arranged on the longitudinal moving rack (10).
6. The automatic solvent dropwise adding device according to claim 1, characterized in that: the longitudinal moving device is connected with a control circuit.
7. The automatic solvent dropwise adding device according to claim 6, characterized in that: the control circuit comprises a power supply U, a switch S, a motor M, contactors KM 1-KM 2 and travel switches SQ 1-SQ 2, wherein the positive electrode of the power supply U is simultaneously connected with one end of a normally-open contact KM1-1 of a contactor KM1, one end of a normally-closed contact KM2-2 of the contactor KM2, one end of a coil of the contactor KM1 and one end of a coil of the contactor KM2, the other end of the normally-open contact KM1-1 of the contactor KM1 is simultaneously connected with one end of the motor M and one end of a normally-closed contact KM2-1 of the contactor KM2, the other end of the normally-closed contact KM2-1 of the contactor KM2 is connected with one end of the switch S, the other end of the motor M is simultaneously connected with the other end of the normally-closed contact KM2-2 of the contactor KM2 and one end of the normally-open, the other end of the coil of the contactor KM1 is connected in series with a normally closed contact KM2-3 of a contactor KM2 and then is simultaneously connected with one end of a normally open contact KM1-4 of a contactor KM1 and one end of a travel switch SQ1, the other end of the normally open contact KM1-4 of the contactor KM1 and the other end of the travel switch SQ1 are simultaneously connected with one end of a switch S, the other end of the coil of the contactor KM2 is connected in series with a normally closed contact KM1-3 of a contactor KM1 and then is simultaneously connected with one end of a normally open contact KM2-4 of a contactor KM2 and one end of a travel switch SQ2, the other end of the normally open contact KM2-4 of the contactor KM2 and the other.
8. The automatic solvent dropwise adding device according to claim 1, characterized in that: still include controlling means, the input of dropwise add device is connected with many feed liquor pipes simultaneously, all is provided with the feed liquor valve on every feed liquor pipe, and controlling means's signal output part links to each other with a plurality of feed liquor valves simultaneously.
9. The automatic solvent dropwise adding device according to claim 1, characterized in that: the number of the dripping devices is at least two.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010186752.7A CN111250188B (en) | 2020-03-17 | 2020-03-17 | Automatic dropwise add device of solvent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010186752.7A CN111250188B (en) | 2020-03-17 | 2020-03-17 | Automatic dropwise add device of solvent |
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| CN111250188A true CN111250188A (en) | 2020-06-09 |
| CN111250188B CN111250188B (en) | 2022-07-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337526A (en) * | 2020-11-22 | 2021-02-09 | 刘广芝 | Reagent is with moving positioning system that carries of sample frame |
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