CN205176617U - Control circuit of food sample pretreatment instrument - Google Patents
Control circuit of food sample pretreatment instrument Download PDFInfo
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- CN205176617U CN205176617U CN201521029656.2U CN201521029656U CN205176617U CN 205176617 U CN205176617 U CN 205176617U CN 201521029656 U CN201521029656 U CN 201521029656U CN 205176617 U CN205176617 U CN 205176617U
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Abstract
The utility model discloses a control circuit of food sample pretreatment instrument, control circuit include smashing of each parts of control test platform and agitator motor, an elevator motor, the 2nd elevator motor, servo motor, a PLC control chip and the 2nd PLC control chip, a PLC control chip's model is DVP28SV, the 2nd PLC control chip's model is DVP16SP11T, an elevator motor, the 2nd elevator motor, smash and all be connected with a PLC control chip with agitator motor, servo motor. The test bench still includes the reagent bottle, and the measuring pump of reagent bottle bottleneck is connected with the 2nd PLC control chip. The utility model discloses make the ordinary medicament test bench application of electronic IT with intelligent, each step test operation need not the operator and directly interferes laboratory glassware, and then more accurateization of testing procedure such as medicament dosage and stirring can make process of the test investment regime many times, and the error reduces. Operator's work load has also been alleviateed simultaneously.
Description
Technical field
The utility model relates to field of food detection, is specifically related to a kind of control circuit of food samples pre-treatment instrument.
Background technology
In medical test, often need to carry out pre-treatment analysis to certain specific constituent of medicine or food.In this analysis, normal needs carry out stirring, heat, the operation such as centrifugal, in prior art, are that operator carries out manually operating realization step by step, this kind of operating process is more loaded down with trivial details, can take the plenty of time of operator, and when often walking operation, stirring dynamics all can be slightly different, heat time can not ensure completely the same, can will have an impact to test findings, and due to test procedure many, easily occur that when lot of experiments step mixes up the even mistake such as gaps and omissions.
Utility model content
For the shortcoming of prior art, the utility model discloses a kind of can by medicine and the constituent analysis of food and the control circuit of pretreatment process automated food sample pre-treatments instrument.
The technical solution of the utility model is as follows:
A kind of food samples pre-treatment instrument control circuit, described food samples pre-treatment instrument comprises spaced apart upper shaft collar, middle shaft collar and lower fixed disk from top to bottom, first guiding mechanism is arranged between shaft collar and middle shaft collar, and the second guiding mechanism is arranged between middle shaft collar and lower fixed disk; Upper displacement disc is connected with described first guiding mechanism, and the first screw mandrel of the first lifting motor connects described upper displacement disc by servomotor cover transverse slat and support column, makes described upper displacement disc vertically make displacement movement on the first guiding mechanism; Lower displacement disc is connected with described second guiding mechanism, and the second screw mandrel of the second lifting motor is connected with lower displacement disc, makes described lower displacement disc vertically make displacement movement on the second guiding mechanism; Displacement disc is also respectively arranged with on described servomotor and pulverizing and stirring motor, the output terminal connection of rotating dish of described servomotor, fixes multiple centrifuge tube on described rolling disc; Described pulverizing is connected Multi-stage transmission unit with the output terminal of stirring motor, and described Multi-stage transmission unit is connected with one end of each splash bar respectively, and the other end of each splash bar stretches in described centrifuge tube; On described middle shaft collar, multiple reagent bottle and volume pump are also set; In the upper surface also affixed heating tank for heating solution in centrifuge tube of described lower displacement disc;
Described control circuit comprises a PLC control chip and the 2nd PLC control chip; The model of a described PLC control chip is DVP28SV; The model of described 2nd PLC control chip is DVP16SP11T;
Described first lifting motor comprises the first upper limit position switch, the first lower position switch, the first drive pulse signal access port and the first driving direction signal access port; Described first upper limit position switch and the first lower position switch are connected reset terminal mouth and the first input end mouth of a PLC control chip respectively, and described first drive pulse signal access port and the first driving direction signal access port are connected the second output port and the 3rd output port of a PLC control chip respectively;
Described second lifting motor comprises the second upper limit position switch, the second lower position switch, the second drive pulse signal access port and the second driving direction signal access port; Described second upper limit position switch and the second lower position switch are connected the second input port and the 3rd input port of a PLC control chip respectively, and described second drive pulse signal access port and the second driving direction signal access port are connected the 4th output port and the 5th output port of a PLC control chip respectively;
Described servomotor comprises the 3rd limit switch, the 3rd drive pulse signal access port, the 3rd driving direction signal access port; Described 3rd limit switch connects the four-input terminal mouth of a PLC control chip, and described 3rd drive pulse signal access port is connected zero output port and first output port of a PLC control chip respectively with the 3rd driving direction signal access port;
Described volume pump has multiple, and the control end of multiple volume pump connects the 7th output port of a PLC control chip, the tenth output port respectively to the zero output port of the 13 output port and the 2nd PLC control chip to the 3rd output port.
Its further technical scheme is: described pulverizing and stirring motor are alternating current generator, and described first lifting motor, the second lifting motor and servomotor are direct current generator; Also comprise power circuit, described power circuit comprises the interchange inlet wire of 220V, also comprises the servo-driver, the first Switching Power Supply and the second switch power supply that are connected to and exchange on inlet wire; Between described servo-driver and interchange inlet wire, disconnect is installed; The output terminal of described servo-driver is three-phase four-wire system, connects the power input pulverized with stirring motor; The model of described first Switching Power Supply and second switch power supply is S-150-24V; The output terminal of described first Switching Power Supply connects the power input of servomotor; The output terminal of described second switch power supply is parallel with three points of output terminals; First point of output terminal and second point of output terminal are connected the power input of the first lifting motor and the second lifting motor respectively, and the 3rd point of output terminal connects the power input of a PLC control chip and the 2nd PLC control chip.
Advantageous Effects of the present utility model is:
The utility model makes common food samples pre-treatment electronicsization with intelligent, all parts on food samples pre-treatment instrument is all driven by motor, and by using PLC control chip, the motor of all parts is driven to control on food samples pre-treatment instrument, each step test operation is directly interfered without the need to operator, the then test procedure precision more such as medicament dosage and stirring, test of many times process standard can be made unified, and error reduces.Also mitigate the workload of operator simultaneously.
Accompanying drawing explanation
Fig. 1 is the perspective view I of food samples pre-treatment instrument.
Fig. 2 is the perspective view II of food samples pre-treatment instrument.
Fig. 3 is the structural representation of middle shaft collar in food samples pre-treatment instrument.
Fig. 4 is the sectional structure schematic diagram of Multi-stage transmission mechanism in food samples pre-treatment instrument.
Fig. 5 is the structural representation that in food samples pre-treatment instrument, back-up block is connected with centrifuge shield.
Fig. 6 is the structural representation of barred body in food samples pre-treatment instrument.
Fig. 7 is the structural representation of blade in food samples pre-treatment instrument.
In Fig. 1 to Fig. 7: 1, the first lifting motor; 2, upper shaft collar; 3, the first screw mandrel; 4, feed screw nut; 5, servomotor cover transverse slat; 6, support column; 7, servomotor; 8, reagent bottle; 9, middle shaft collar; 901, infusion hole; 902, through hole; 10, heating tank; 11, lower pillar stand; 12, the second screw mandrel; 13, lower fixed disk; 14, pulverizing and stirring motor; 15, the first holder; 16, upper pillar stand; 17, the first guidepost; 18, synchronizing wheel; 19, the first flange linear bearing; 20, shaft bearing sleeve; 21, electric machine support; 22, upper displacement disc; 23, centrifuge shield; 2301, internal thread; 2302, locating slot; 24, back-up block; 2401, skewed slot is located; 25, rolling disc; 26, the second holder; 27, the second flange linear bearing; 28, the second guidepost; 29, lower displacement disc; 30, splash bar; 31, limit support board; 32, the second lifting motor; 33, supporting leg; 34, centrifuge tube; 34, main bearing seat; 35, transmission shaft; 36, bearing; 37, locating shaft; 38, transmission shaft; 39, blade; 40, rod cover; 4001, pilot hole; 4002, flange; 4003, barred body; 4004, splash bar pilot hole; 4005, disk; 39, blade; 3901, splash bar mounting hole; 3902, the first helical teeth portion; 3903, side plate; 3904, the second helical teeth portion; 3905, hypotenuse; 3906, blade body.
Fig. 8 is the pinouts of a PLC control chip.
Fig. 9 is the pinouts of the 2nd PLC control chip.
Figure 10 is the schematic diagram of power circuit.
Embodiment
As shown in Figure 1 and Figure 2, food samples pre-treatment instrument comprises spaced apart upper shaft collar 2, middle shaft collar 9 and lower fixed disk 13 from top to bottom, first guiding mechanism is arranged between shaft collar 2 and middle shaft collar 9, and the second guiding mechanism is arranged between middle shaft collar 9 and lower fixed disk 13; Upper displacement disc 22 is connected with the first guiding mechanism, and the first screw mandrel 3 of the first lifting motor 1 connects upper displacement disc 22 by servomotor cover transverse slat 5 and support column 6, makes displacement disc 22 vertically make displacement movement on the first guiding mechanism.As shown in Figure 1, the junction overlapping transverse slat 5 at the first screw mandrel 3 and servomotor also arranges feed screw nut 4, and four bights that one end of each support column 6 and servomotor overlap transverse slat 5 are affixed, and the other end of each support column 6 is connected with the upper surface of upper displacement disc 22 respectively.Lower displacement disc 29 is connected with the second guiding mechanism, and the second screw mandrel 12 of the second lifting motor 32 is connected with lower displacement disc 29, makes lower displacement disc 29 vertically make displacement movement on the second guiding mechanism; Upper displacement disc 22 is also respectively arranged with servomotor 7 and pulverizes and stirring motor 14, the output terminal connection of rotating dish 25 of servomotor 7, fixes multiple centrifuge tube 34 on rolling disc 25.Output terminal in above-mentioned servomotor 7 also installs a pair thrust bearing, and each thrust bearing is installed in main bearing seat 35.Pulverize with the output terminal of stirring motor 14 by being connected Multi-stage transmission unit, Multi-stage transmission unit is connected with one end of each splash bar 30 respectively, and the other end of each splash bar 30 stretches in centrifuge tube 34.
As shown in Figure 1 and Figure 2, first guiding mechanism at least comprises three upper pillar stands 16, affixed a pair spaced apart first holder 15 of difference on each upper pillar stand 16, the first guidepost 17 is connected between a pair first holders 15, each first guidepost 17 also installs the first flange linear bearing 19, and each first flange linear bearing 19 is all connected with the outward extending multiple end of upper displacement disc 22; Second guiding mechanism at least comprises three lower pillar stands 11, affixed a pair spaced apart second holder 26 of difference on each lower pillar stand 11, the second guidepost 28 is connected between a pair second holders 26, each second guidepost 28 also installs the second flange linear bearing 27, and each second flange linear bearing 27 is all connected with the outward extending multiple end of lower displacement disc 29.
As shown in Figure 1 and Figure 2, above-mentioned pulverizing and stirring motor 14 are arranged on electric machine support 21, and electric machine support 21 is affixed with the upper surface of middle shaft collar 9.Multi-stage transmission unit comprises multiple along the circumferential direction uniform synchronous wheels and bearing seat group, above-mentioned synchronous wheels and bearing seat group are installed on displacement disc 22, as shown in Figure 1, Figure 2 and shown in Fig. 4, synchronous wheels and bearing seat group arranged concentric each other, synchronous wheels are made up of a pair synchronizing wheel 18 arranged from top to bottom, transmit power between each adjacent sync wheel 18 by Timing Belt.Bearing seat group is made up of a pair shaft bearing sleeve 20 arranged from top to bottom, in each shaft bearing sleeve 20, bearing 36 is all installed, transmission shaft 38 order runs through synchronizing wheel 18, shaft bearing sleeve 20 and bearing 36, one end that transmission shaft 38 stretches out shaft bearing sleeve 20 is connected with one end of splash bar 30, at the other end of splash bar 30, blade 39 is installed, has at least a transmission shaft 38 to be connected with the output terminal of stirring motor 14 with pulverizing by shaft coupling.
As shown in Figure 7, blade 39 comprises blade body 3906, splash bar mounting hole 3901 is had in the center of blade body 3906, in the diagonal angle place of blade body 3906, the first helical teeth portion 3902 and hypotenuse 3905 are set respectively, stretch out in the same direction respectively in the two ends of blade body 3906 and be integrally formed side plate 3903, each side plate 3903 is connected stroke " U " shape structure with blade body 3906; The second helical teeth portion 3904 is also had on each side plate 3903, the first adjacent each other helical teeth portion 3902 and the helical teeth in the second helical teeth portion 3904 form direction and are positioned at " U " shape structure homonymy, angle in first helical teeth portion 3902 and the second helical teeth portion 3904 between the helical teeth flank of tooth and surface level is 45 ° ± 1 °, in actual installation process, blade 39 is arranged down.The maximum rotating diameter of insert is 26 ~ 27mm, being furnished with of hypotenuse 3905 is beneficial to the area reducing rotational resistance and reduce blade 39, first helical teeth portion 3901 and being furnished with of the second helical teeth portion 3904 are beneficial to all kinds of meat of cut-out or greengrocery raw material, be convenient to detect different material, improve sensing range.
As shown in Figure 1, Figure 3, multiple through hole 902 stretching into centrifuge tube 34 for splash bar 30 is had on middle shaft collar 9, at least between two adjacent through holes 902, on middle shaft collar 9, also have an infusion hole 901 for transfusion in centrifuge tube 34, multiple reagent bottle 8 and volume pump be also set on above-mentioned middle shaft collar 9, pipeline on volume pump stretches in above-mentioned infusion hole 901, when each centrifuge tube 34 turns to infusion hole 901, by volume pump to liquid feeding in centrifuge tube 34.As shown in Figure 1 and Figure 2, in the upper surface also affixed heating tank 10 for heating solution in centrifuge tube 34 of lower displacement disc 29, in the lower surface also affixed limit support board 31 of lower displacement disc 29.
As shown in Figure 1 and Figure 2, rolling disc 25 has multiple opening 2501 for installing centrifuge tube 34, the affixed back-up block 24 of difference in the two ends, left and right of opening 2501, on rolling disc 25, each back-up block 24 connects the centrifuge shield 23 for the centrifuge tube 34 that is spirally connected by locating shaft 37.As shown in Figure 5, the location skewed slot 2401 for installing locating shaft 37 one end is had on back-up block 24, on centrifuge shield 23, having the locating slot 2302 for installing locating shaft 37 other end, in centrifuge shield 23, also having the internal thread 2301 for centrifuge tube 34 one end that is spirally connected.Lower surface in lower fixed disk 13 also connects multiple supporting leg 33.
As shown in Figure 6, in the opposite position of each shaft bearing sleeve 20, go back mounting bar cover 40 in the bottom of upper displacement disc 22, rod cover 40 comprises disk 4005 and the barred body 4003 of one connection, in the periphery of disk 4005 also one flange connector 4002, disk 4005 is offered multiple for the pilot hole 4001 affixed with upper displacement disc 22, the external diameter of barred body 4003 is less than the aperture of centrifuge tube 34, and barred body 4003 also has the splash bar pilot hole 4004 for running through splash bar 30.Above-mentioned flange 4002 is circular, the bottom of flange 4002 contacts with the aperture end face of centrifuge tube 34, close the hole of centrifuge tube 34 thus, prevent the liquid splash in centrifuge tube 34 in centrifugal process, play sealing process, the external diameter of barred body 4003 is less than the aperture of centrifuge tube 34 simultaneously, makes it not affect the centrifugal of centrifugal liquid in pipe, can also prevent centrifuge tube 34 from shaking under the action of the centrifugal simultaneously, ensure that the dewatering ability of centrifuge tube 34.
First lifting motor 1, second lifting motor 32 of the present utility model, servomotor 7, to pulverize and volume pump on stirring motor 14 and reagent bottle 8 all controlled by PLC control chip.
Fig. 8 is the pinouts of a PLC control chip.As shown in Figure 8, the model of a PLC control chip is DVP28SV, comprises multiple input port and output port.Fig. 9 is the pinouts of the 2nd PLC control chip, and as shown in Figure 9, the model of the 2nd PLC control chip is DVP16SP11T.Composition graphs 8 and Fig. 9, the method for attachment of each motor and control chip is as follows:
First lifting motor 1 comprises the first upper limit position switch, the first lower position switch, the first drive pulse signal access port and the first driving direction signal access port.First upper limit position switch and the first lower position switch are connected reset terminal mouth X100 and the first input end mouth X101 of a PLC control chip respectively, and the first drive pulse signal access port and the first driving direction signal access port are connected the second output port Y102 and the 3rd output port Y103 of a PLC control chip respectively.First lifting motor 1 controls the first screw mandrel 2 and moves up and down.When the first screw mandrel 2 drives stirring apparatus to move to high-low limit position; touch the first upper limit position switch or the first lower position switch; send current signal transfer to a PLC control chip, a PLC control chip controls the first lifting motor 1 and shuts down, in order to avoid cause device damage.
Second lifting motor 32 comprises the second upper limit position switch, the second lower position switch, the second drive pulse signal access port and the second driving direction signal access port; Second upper limit position switch and the second lower position switch are connected the second input port X102 and the 3rd input port X103 of a PLC control chip respectively, and the second drive pulse signal access port and the second driving direction signal access port are connected the 4th output port Y104 and the 5th output port Y105 of a PLC control chip respectively.Second lifting motor 32 controls the second screw mandrel 12 and moves up and down.When the second screw mandrel 12 drives lower displacement disc 29 and heating tank 10 to move to high-low limit position; touch the second upper limit position switch or the second lower position switch; send current signal transfer to a PLC control chip; one PLC control chip controls the second lifting motor 5 and shuts down, in order to avoid cause device damage.
Servomotor 7 comprises the 3rd limit switch, the 3rd drive pulse signal access port, the 3rd driving direction signal access port.3rd limit switch connects the four-input terminal mouth X104 of a PLC control chip, and the 3rd drive pulse signal access port is connected zero output port Y100 and the first output port Y101 of a PLC control chip respectively with the 3rd driving direction signal access port.Servomotor 7 drives rolling disc 25 to rotate, and when rolling disc 7 turns to extreme position, touches the 3rd limit switch, sends current signal to a PLC control chip, and a PLC control chip controls servomotor 7 and shuts down, in order to avoid cause device damage.
The utility model also comprises multiple reagent bottle 8, and the bottleneck of reagent bottle 8 is all provided with volume pump, in the present embodiment, has eight volume pumps.Volume pump is provided with control end, can control the openend opening and closing of reagent bottle 8, and the reaction reagent in reagent bottle 8 is flowed out by prescribed dose and kind.The reaction reagent be equipped with in reagent bottle 8 can instill in the centrifuge tube 34 be placed in rolling disc 25.Rotating by controlling rolling disc 25, corresponding reagent bottle 8 and centrifuge tube 34 can be selected mutually.The zero output port Y200 of the 7th output port Y107, the tenth output port Y110 to the 13 output port Y103 and the 2nd PLC control chip that the control end of eight volume pumps connects a PLC control chip is respectively to the 3rd output port Y202.
In the utility model, pulverizing with stirring motor 14 is alternating current generator, and the first lifting motor 1, second lifting motor 32 and servomotor 7 are all direct current generator.
The power circuit that the invention also discloses.Figure 10 is the schematic diagram of power circuit.As shown in Figure 10, power circuit comprises interchange inlet wire U1, N1 of 220V, also comprises being connected to exchanging servo-driver A, the first Switching Power Supply B on inlet wire U1, N1 and second switch power supply C.
Servo-driver A and exchange between inlet wire U1, N1 and be connected with circuit breaker Q F2.Servo-driver is conventional commercial goods, and IO interface is standard system.First interchange inlet wire U1 connects input port R and the input port L1c of servo-driver A, second interchange inlet wire N1 connects input port S and the input port L2c of servo-driver 11, the output terminal of servo-driver A is three-phase four-wire system, connects the power input pulverized with stirring motor 14.
The model of the first Switching Power Supply B and second switch power supply C is S-150-24V, the alternating current of 220V can be converted to the direct current of 24V.Output terminal P1-1+, P1-of first Switching Power Supply B connect the power input of servomotor 7.The output terminal of second switch power supply C is parallel with three points of output terminals.First point of output terminal P2-1+, P2-and second point of output terminal P2-2+, P2-are connected the power input of the first lifting motor 1 and the second lifting motor 32 respectively, and the 3rd point of output terminal P2-3+, P2-connect the power input of a PLC control chip and the 2nd PLC control chip.
Composition graphs 8, Figure 10, for a PLC control chip, first upper limit position switch, the first lower position switch, the second upper limit position switch, the second lower position switch are connected the 3rd point of output head anode P2-3+ with one end of the 3rd limit switch, and the other end connects the reset terminal mouth X100 of a PLC control chip respectively to four-input terminal mouth X104.3rd point of negative pole of output end P2-connects five out-put supply port C10 ~ C14 and two input power ports S/S1, S/S2 of a PLC control chip.
Composition graphs 9, Figure 10, for the 2nd PLC control chip, the 3rd point of negative pole of output end P2-connects out-put supply port C20 and the input power port S/S3 of the 2nd PLC control chip.
All the other ports of one PLC control chip and the 2nd PLC control chip are standby port.
Using following two embodiments to illustrate utilizes the control circuit of food samples pre-treatment instrument to carry out the control method controlled.
Embodiment 1: measure the content of formaldehyde in beans blinds.Method described in embodiment 1 also can be used for testing the content of formaldehyde in sea-tangle, only the beans blinds in raw material need be changed into formaldehyde.
1st step: add raw material to be detected in each centrifuge tube 34; Raw material is 1 gram of beans blinds and 10 grams of water; Start second switch power supply C, a PLC control chip and the 2nd PLC control chip are started working;
2nd step: control the first lifting motor 1 by a PLC control chip and start, first lifting motor 1 drives the first screw mandrel 3 descending, first screw mandrel 3 drives upper displacement disc 22 to move down on the first guidepost 17 by servomotor cover transverse slat 5 and support column 6, make the servomotor 7 being arranged on displacement disc, pulverize and move down with the splash bar 30 in stirring motor 14 and Multi-stage transmission mechanism, until splash bar 30 stretches in centrifuge tube 34, and the first lower position switch touched on the first lifting motor 1, first lower position switch transmits stop signal to a PLC control chip, one PLC control chip controls the first lifting motor 1 and closes,
3rd step: close circuit breaker Q F2, starts servo-driver A, and then opens and stir companion's motor 14; One PLC control chip controls to pulverize and starts with stirring motor 14, pulverize and drive splash bar 30 with stirring motor 14 by synchronizing wheel 18, Timing Belt, transmission shaft 35, blade 39 rotates, until after the raw material in centrifuge tube 34 shredded by splash bar 30, controlled to pulverize by a PLC control chip and close with stirring motor 14;
4th step: a PLC control chip controls the first lifting motor 1 and starts, first lifting motor 1 drives the first screw mandrel 3 up, first screw mandrel 3 drives upper displacement disc 22 to move up on the first guidepost 17 by servomotor cover transverse slat 5 and support column 6, pulverize and move up with the splash bar 30 in stirring motor 14 and Multi-stage transmission mechanism, until splash bar 30 leaves centrifuge tube 34, and the first upper limit position switch triggered on the first lifting motor 1, first upper limit position switch transmits stop signal to a PLC control chip, one PLC control chip controls the first lifting motor 1 and closes,
5th step: open the first Switching Power Supply B, control servomotor 7 by a PLC control chip to start, rolling disc 25 slow rotation is driven to look for position, centrifuge tube 34 on rolling disc 25 is when turning to infusion hole 901, one PLC control chip controls servomotor 7 and closes, the woven hose of volume pump stretches in the centrifuge tube 34 corresponding with infusion hole 901 infuses, and liquid is reflection medicament B10 gram.After infusion-completed, a PLC control chip control servomotor 7 starts, and the above-mentioned action that circulates, until all complete transfusion work in all centrifuge tubes 34, controls servomotor 7 by a PLC control chip and closes; The unlatching of multiple volume pump and closing is controlled respectively by a PLC control chip and the 2nd PLC control chip;
6th step: repeat the 2nd step and the 3rd step action, make the liquid in centrifuge tube 34 and raw material form potpourri;
7th step: repeat the 4th step action, make until splash bar 30 leaves centrifuge tube 34;
8th step: a PLC control chip controls servomotor 7 and starts, the output terminal of servomotor 7 drives rolling disc 25 to rotate, and makes each centrifuge tube 34 be fixed on rolling disc 25 carry out centrifugal motion under high-speed motion;
9th step: take out mixed liquor centrifugal in each centrifuge tube 34 in order.
10th step: cleaning equipment, and powered-down.
Embodiment 2: measure the Asia pin acid content in jellyfish wire.Embodiment 2 difference from Example 1 is, embodiment 2 employs heating steps.
1st step: add raw material to be detected in each centrifuge tube 34; Raw material is 1 gram of jellyfish wire and 10 grams of water; Start second switch power supply C, a PLC control chip and the 2nd PLC control chip are started working;
2nd step: control the first lifting motor 1 by a PLC control chip and start, first lifting motor 1 drives the first screw mandrel 3 descending, first screw mandrel 3 drives upper displacement disc 22 to move down on the first guidepost 17 by servomotor cover transverse slat 5 and support column 6, make the servomotor 7 being arranged on displacement disc, pulverize and move down with the splash bar 30 in stirring motor 14 and Multi-stage transmission mechanism, until splash bar 30 stretches in centrifuge tube 34, and the first lower position switch touched on the first lifting motor 1, first lower position switch transmits stop signal to a PLC control chip, one PLC control chip controls the first lifting motor 1 and closes,
3rd step: close circuit breaker Q F2, starts servo-driver A, and then opens and stir companion's motor 14; One PLC control chip controls to pulverize and starts with stirring motor 14, pulverize and drive splash bar 30 with stirring motor 14 by synchronizing wheel 18, Timing Belt, transmission shaft 35, blade 39 rotates, until after the raw material in centrifuge tube 34 shredded by splash bar 30, controlled to pulverize by a PLC control chip and close with stirring motor 14;
4th step: a PLC control chip controls the first lifting motor 1 and starts, first lifting motor 1 drives the first screw mandrel 3 up, first screw mandrel 3 drives upper displacement disc 22 to move up on the first guidepost 17 by servomotor cover transverse slat 5 and support column 6, pulverize and move up with the splash bar 30 in stirring motor 14 and Multi-stage transmission mechanism, until splash bar 30 leaves centrifuge tube 34, and the first upper limit position switch triggered on the first lifting motor 1, first upper limit position switch transmits stop signal to a PLC control chip, one PLC control chip controls the first lifting motor 1 and closes,
5th step: open the first Switching Power Supply B, control servomotor 7 by a PLC control chip to start, rolling disc 25 slow rotation is driven to look for position, centrifuge tube 34 on rolling disc 25 is when turning to infusion hole 901, one PLC control chip controls servomotor 7 and closes, the woven hose of volume pump stretches in the centrifuge tube 34 corresponding with infusion hole 901 infuses, and liquid is hydrochloric acid reflection medicament relevant with other A totally 10 grams.After infusion-completed, a PLC control chip control servomotor 7 starts, and the above-mentioned action that circulates, until all complete transfusion work in all centrifuge tubes 34, controls servomotor 7 by a PLC control chip and closes; The unlatching of multiple volume pump and closing is controlled respectively by a PLC control chip and the 2nd PLC control chip;
6th step: repeat the 2nd step and the 3rd step action, make the liquid in centrifuge tube 34 and raw material form potpourri;
61st step: PLC control chip second lifting motor 32 starts, second lifting motor 32 drives the second screw mandrel 12 up, second screw mandrel 12 drives lower displacement disc 29 to move up on the second guidepost 28, heating water in heating tank 10 contacts with centrifuge tube 34, and the second upper limit position switch triggered on the second lifting motor 32, second upper limit position switch transmits stop signal to a PLC control chip, and a PLC control chip controls the second lifting motor 32 and closes; Potpourri in centrifuge tube 34 heats up;
62nd step: after temperature-rise period terminates, one PLC control chip controls control second lifting motor 32 and starts, second lifting motor 32 drives the second screw mandrel 12 descending, and the second screw mandrel 12 drives lower displacement disc 29 to move down on the second guidepost 28, and heating tank 10 is separated with centrifuge tube 34.
7th step: repeat the 4th step action, make until splash bar 30 leaves centrifuge tube 34;
8th step: a PLC control chip controls servomotor 7 and starts, the output terminal of servomotor 7 drives rolling disc 25 to rotate, and makes each centrifuge tube 34 be fixed on rolling disc 25 carry out centrifugal motion under high-speed motion;
9th step: take out mixed liquor centrifugal in each centrifuge tube 34 in order.
10th step: cleaning equipment, and powered-down.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite not departing from spirit of the present utility model and design, all should think and be included within protection domain of the present utility model.
Claims (2)
1. the control circuit of a food samples pre-treatment instrument, it is characterized in that: described food samples pre-treatment instrument comprises spaced apart upper shaft collar (2), middle shaft collar (9) and lower fixed disk (13) from top to bottom, first guiding mechanism is arranged between shaft collar (2) and middle shaft collar (9), and the second guiding mechanism is arranged between middle shaft collar (9) and lower fixed disk (13); Upper displacement disc (22) is connected with described first guiding mechanism, first screw mandrel (3) of the first lifting motor (1) overlaps transverse slat (5) by servomotor and support column (6) connects described upper displacement disc (22), makes described upper displacement disc (22) vertically make displacement movement on the first guiding mechanism; Lower displacement disc (29) is connected with described second guiding mechanism, second screw mandrel (12) of the second lifting motor (32) is connected with lower displacement disc (29), makes described lower displacement disc (29) vertically make displacement movement on the second guiding mechanism; Displacement disc (22) be also respectively arranged with on described servomotor (7) and pulverize and stirring motor (14), the output terminal connection of rotating dish (25) of described servomotor (7), in the upper fixing multiple centrifuge tube (34) of described rolling disc (25); Described pulverizing is connected Multi-stage transmission unit with the output terminal of stirring motor (14), described Multi-stage transmission unit is connected with one end of each splash bar (30) respectively, and the other end of each splash bar (30) stretches in described centrifuge tube (34); On described middle shaft collar (9), multiple reagent bottle (8) and volume pump are also set; In the upper surface also affixed heating tank (10) for heating solution in centrifuge tube (34) of described lower displacement disc (29);
Described control circuit comprises a PLC control chip and the 2nd PLC control chip; The model of a described PLC control chip is DVP28SV; The model of described 2nd PLC control chip is DVP16SP11T;
Described first lifting motor (1) comprises the first upper limit position switch, the first lower position switch, the first drive pulse signal access port and the first driving direction signal access port; Described first upper limit position switch and the first lower position switch are connected reset terminal mouth (X100) and the first input end mouth (X101) of a PLC control chip respectively, and described first drive pulse signal access port and the first driving direction signal access port are connected the second output port (Y102) and the 3rd output port (Y103) of a PLC control chip respectively;
Described second lifting motor (32) comprises the second upper limit position switch, the second lower position switch, the second drive pulse signal access port and the second driving direction signal access port; Described second upper limit position switch and the second lower position switch are connected the second input port (X102) and the 3rd input port (X103) of a PLC control chip respectively, and described second drive pulse signal access port and the second driving direction signal access port are connected the 4th output port (Y104) and the 5th output port (Y105) of a PLC control chip respectively;
Described servomotor (7) comprises the 3rd limit switch, the 3rd drive pulse signal access port, the 3rd driving direction signal access port; Described 3rd limit switch connects the four-input terminal mouth (X104) of a PLC control chip, and described 3rd drive pulse signal access port is connected zero output port (Y100) and first output port (Y101) of a PLC control chip respectively with the 3rd driving direction signal access port;
Described volume pump has multiple, and the control end of multiple volume pump connects the 7th output port (Y107) of a PLC control chip, the tenth output port (Y110) respectively to the zero output port (Y200) of the 13 output port (Y103) and the 2nd PLC control chip to the 3rd output port (Y202).
2. the control circuit of food samples pre-treatment instrument as claimed in claim 1, it is characterized in that: described pulverizing and stirring motor (14) are alternating current generator, described first lifting motor (1), the second lifting motor (32) and servomotor (7) are direct current generator; Also comprise power circuit, described power circuit comprises the interchange inlet wire (U1, N1) of 220V, also comprises the servo-driver (A), the first Switching Power Supply (B) and the second switch power supply (C) that are connected to and exchange on inlet wire (U1, N1); Between described servo-driver (A) and interchange inlet wire (U1, N1), disconnect (QF2) is installed; The output terminal of described servo-driver (A) is three-phase four-wire system, connects the power input pulverized with stirring motor (14); The model of described first Switching Power Supply (B) and second switch power supply (C) is S-150-24V; The output terminal of described first Switching Power Supply (B) connects the power input of servomotor (7); The output terminal of described second switch power supply (C) is parallel with three points of output terminals; First point of output terminal and second point of output terminal are connected the power input of the first lifting motor (1) and the second lifting motor (32) respectively, and the 3rd point of output terminal connects the power input of a PLC control chip and the 2nd PLC control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029656.2U CN205176617U (en) | 2015-12-11 | 2015-12-11 | Control circuit of food sample pretreatment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029656.2U CN205176617U (en) | 2015-12-11 | 2015-12-11 | Control circuit of food sample pretreatment instrument |
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| Publication Number | Publication Date |
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| CN205176617U true CN205176617U (en) | 2016-04-20 |
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| CN201521029656.2U Withdrawn - After Issue CN205176617U (en) | 2015-12-11 | 2015-12-11 | Control circuit of food sample pretreatment instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425715A (en) * | 2015-12-11 | 2016-03-23 | 无锡职业技术学院 | Control circuit of food sample pretreatment apparatus and control method thereof |
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- 2015-12-11 CN CN201521029656.2U patent/CN205176617U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425715A (en) * | 2015-12-11 | 2016-03-23 | 无锡职业技术学院 | Control circuit of food sample pretreatment apparatus and control method thereof |
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