CN112774561B - Automatic liquid injection device for inspection - Google Patents
Automatic liquid injection device for inspection Download PDFInfo
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- CN112774561B CN112774561B CN202011483174.XA CN202011483174A CN112774561B CN 112774561 B CN112774561 B CN 112774561B CN 202011483174 A CN202011483174 A CN 202011483174A CN 112774561 B CN112774561 B CN 112774561B
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- liquid injection
- bag
- bag opening
- piece
- liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2117—Weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/23—Mixing of laboratory samples e.g. in preparation of analysing or testing properties of materials
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses an automatic liquid injection device for inspection, which comprises: a base, wherein a liquid storage container is arranged in the base; the bag opening mechanism comprises a bag opening piece, an electromagnet, a bag opening driving piece, a guide piece and magnetic pieces, the electromagnet is arranged on the bag opening piece, the bag opening driving piece, the guide piece and the magnetic pieces are arranged on two side walls of the homogeneous bag, the homogeneous bag is clamped between the two bag opening pieces, the electromagnet is used for attracting the magnetic pieces on the homogeneous bag, and the bag opening piece is matched with the guide piece and moves along the guide piece; the liquid injection mechanism moves the liquid injection port to the corresponding position of the opening of the opened homogeneous bag under the driving of the liquid injection driving piece, and liquid is injected into the homogeneous bag through the liquid injection pump. The invention realizes automation from bag opening to liquid injection and bag sealing, avoids manual participation, improves the problem of inconvenient bag opening, simultaneously improves the working efficiency, obviously improves the test accuracy, and can also be used for sample pretreatment work in sites or laboratories with unavailable conditions.
Description
Technical Field
The invention relates to the technical field of microorganism detection equipment, in particular to an automatic liquid injection device for inspection.
Background
When detecting microorganisms in a sample, the detection is carried out in a clean room, and the conventional operations are as follows: firstly, opening a homogenizing bag, then putting a sample into the homogenizing bag, adding a certain amount of diluent or culture solution, and then carrying out subsequent operation. The disadvantages of this are: firstly, a clean room meeting the cleanliness requirement is required; secondly, sticky substances such as plasticine and the like are usually used for respectively sticking to two sides of a shelf of the homogenizing bag in actual work, the shelf of the homogenizing bag is manually kneaded to stick and open two sides of the homogenizing bag to finish bag opening operation, when a sample is powdery or an oily/aqueous sample, powder or oil and water are easily stuck to the wall of the homogenizing bag, the sticky substances directly stuck to the two sides of the shelf of the homogenizing bag cannot stick to the homogenizing bag, and bag opening failure is caused; thirdly, the whole process of opening the bag and adding the diluent or the culture solution still needs manual operation, the labor force is increased, the working efficiency is reduced, the risk of polluting the sample exists, the uncertainty factor of the final result is large, and the accuracy of the result is influenced.
Disclosure of Invention
The technical scheme adopted by the invention for solving the technical problems is as follows:
automatic priming device is used in inspection includes:
the base is internally provided with a liquid storage container;
at least one bag opening mechanism disposed on the base, comprising: the bag opening device comprises two bag opening pieces for opening the mouths of homogeneous bags, electromagnets arranged on the bag opening pieces, a bag opening driving piece, at least one guide piece and at least one pair of oppositely attracted magnetic pieces arranged on two side walls of the homogeneous bags, wherein the homogeneous bags are clamped between the two bag opening pieces, the electromagnets are used for attracting the magnetic pieces on the homogeneous bags, and the bag opening pieces are matched with the guide pieces and move along the guide pieces;
the setting is in annotate liquid mechanism on the base, it includes: the liquid injection device comprises a liquid injection body internally provided with a liquid injection pipe and a liquid injection driving piece for driving the liquid injection body to move, wherein the liquid injection body is movably connected with a base, a liquid injection port for injecting liquid into the homogenizing bag is formed in the liquid injection body, the liquid injection body comprises a liquid injection pump for sucking the liquid in the liquid storage container to the liquid injection port, and the liquid injection pipe is respectively communicated with the liquid storage container and the liquid injection port;
the main controller is in communication connection with the bag opening driving piece, the liquid injection driving piece and the liquid injection pump;
the power supply mechanism is used for supplying power to the bag opening mechanism, the liquid injection pump and the main controller;
the liquid injection mechanism is driven by the liquid injection driving piece to move the liquid injection port to a position corresponding to the opening of the opened homogeneous bag, and liquid is injected into the homogeneous bag through the liquid injection pump.
Preferably, the two bag opening pieces are arranged oppositely, and the electromagnets are respectively arranged on two opposite surfaces of the two bag opening pieces which are arranged oppositely;
the bag opening device comprises a guide piece, bag opening pieces and a bag closing piece, wherein the guide piece is a guide groove, guide blocks sliding in the guide groove are arranged at the bottom of the bag opening pieces, the two bag opening pieces move along the guide groove through the guide blocks, and the moving directions of the two guide blocks in the guide groove are opposite;
or the guide piece is a guide rail, guide grooves matched with the guide rail are formed in the bottom of the bag opening piece, the two bag opening pieces move along the guide rail through the guide grooves, and the moving directions of the two guide grooves on the guide rail are opposite.
Preferably, annotate the liquid driving piece and pass through the rotary disk drive annotate the liquid body rotation, annotate the liquid body with rotary disk fixed connection, annotate the liquid pipe and run through the rotary disk extends to in the stock solution container.
Preferably, annotate the liquid body include with rotary disk fixed connection's stand and with stand fixed connection's notes liquid piece, annotate liquid piece one end with stand fixed connection, the other end is equipped with annotate the liquid mouth, annotate the liquid mouth with the stand is connected to annotate same one side of liquid piece.
Preferably, the automatic priming device for the inspection further comprises a positioning mechanism in communication connection with the main controller, the positioning mechanism comprises a signal emitting piece and a signal receiving piece, one of the signal emitting piece and the signal receiving piece is arranged on the base, the other of the signal emitting piece and the signal receiving piece is arranged on the priming piece, and the signal emitting piece and the signal receiving piece are arranged oppositely in the vertical direction;
the number and the arrangement positions of the signal emitting pieces or the signal receiving pieces arranged on the base correspond to those of the bag opening mechanisms one by one;
after the signal receiving part receives the signal of the signal transmitting part, the signal receiving part sends a positioning signal to the main controller, and the main controller controls the liquid injection driving part to stop working and controls the liquid injection pump to start injecting liquid.
Preferably, the base is further provided with a weighing sensor for weighing the sample, the weighing sensor is in communication connection with the main controller, and the weighing sensor is arranged between the two bag opening pieces and corresponds to the homogenizing bag.
Preferably, the liquid injection mechanism further comprises a flow meter for measuring the liquid injection amount of the liquid injection body, and the flow meter is in communication connection with the control unit;
the main controller also comprises a memory, the memory stores the corresponding relation between the sample weight and the liquid injection amount, the main controller reads the sample weight of the weighing sensor to obtain the preset liquid injection amount corresponding to the sample weight, and the opening and closing of the liquid injection pump are controlled by reading the numerical value of the flow meter and comparing the numerical value with the preset liquid injection amount.
Preferably, the magnetic member is a strip-shaped magnetic sheet having the same width as the homogenization bag, and the strip-shaped magnetic sheet is arranged in parallel with the width direction of the homogenization bag;
or the magnetic pieces are at least two magnetic sheets arranged on the side wall of the homogenizing bag at intervals.
Preferably, the liquid storage container is detachably connected with the base, and the liquid injection pipe is detachably connected with the liquid injection body.
Preferably, the automatic liquid injection device for inspection further comprises a shell covering the bag opening mechanism and the liquid injection mechanism, the shell is detachably connected with the base, the top surface of the shell is provided with feed ports corresponding to the positions and the number of the homogeneous bags, the feed ports are provided with cover bodies covering the feed ports, and the cover bodies are movably connected with the feed ports.
The invention has the following beneficial effects: the invention realizes automation from bag opening to liquid injection and bag sealing, avoids manual participation, improves the problem of inconvenient bag opening, simultaneously improves the working efficiency and obviously improves the test accuracy.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural view of a bag opening mechanism in one embodiment of the present invention;
FIG. 3 is a schematic view of the combination of a guide slot and a guide block according to an embodiment of the present invention;
FIG. 4 is a schematic view of a combination of a guide rail and a guide groove according to an embodiment of the present invention;
fig. 5 is a top view of the assembly mechanism of the bag opening mechanism and the filling mechanism of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
The automatic liquid injection device for the inspection provided by the invention can be used in the microorganism detection work, and particularly, referring to fig. 1, the automatic liquid injection device for the inspection comprises a base 10, a bag opening mechanism 20, a liquid injection mechanism 30, a main controller, a power supply mechanism and a shell 50. The automatic liquid injection device for the test can comprise a bag opening mechanism 20 and also can comprise a plurality of bag opening mechanisms 20, wherein the bag opening mechanism 20 comprises at least one pair of oppositely attracted magnetic pieces 61, the magnetic pieces 61 are arranged on the side wall of a homogenizing bag 60 for containing samples and diluent/culture solution, specifically, the homogenizing bag 60 is a special sterile homogenizing bag for the test, the homogenizing bags provided with the magnetic pieces 61 are arranged in a one-to-one correspondence manner with the bag opening mechanisms 20, the bag openings of the homogenizing bags are naturally attracted by the magnetic pieces 61 under the action of no external force, but when the homogenizing bags need to be opened, the closed bag openings of the homogenizing bags are opened by the bag opening mechanisms 20, and liquid is automatically injected into the homogenizing bags by the liquid injection mechanisms 30.
Specifically, in the present invention, the magnetic members 61 may be fixed on two side walls of the homogeneous bag 60 by gluing or other fixing means, and the two side walls of the homogeneous bag 60 are attracted to each other by the magnetic sheets and then folded without external force. In some embodiments, the magnetic members 61 are a pair of strip-shaped magnetic pieces with the same width as the side walls of the homogenization bag 60, the strip-shaped magnetic pieces are arranged in parallel with the width direction of the side walls of the homogenization bag 60, and the mouth of the homogenization bag 60 is completely closed under the attraction of the strip-shaped magnetic pieces on the side walls of the homogenization bag 60; in other embodiments, the magnetic members 61 are a plurality of pairs of magnetic sheets spaced apart from each other on the sidewall of the homogenizer bag 60, and the mouth of the homogenizer bag 60 is partially closed under the attraction of the plurality of magnetic sheets spaced apart from each other, so as to provide oxygen for culturing microorganisms in the homogenizer bag 60 while preventing impurities from entering the homogenizer bag 60.
In some embodiments, the bag opening mechanism 20 and the liquid injection mechanism 30 are both disposed on the base 10, the base 10 is a seat body having a certain thickness, and in some embodiments, a liquid storage container 11 is disposed in the base 10, and the diluent or the culture solution is contained in the liquid storage container 11. The liquid injection mechanism 30 is communicated with the liquid storage container 11 through the liquid injection pipe 33, so that the liquid injection function is realized. In some embodiments, the liquid storage container 11 needs to be sterilized, the liquid storage container 11 is detachably connected to the base 10, and specifically, the base 10 and the liquid storage container 11 are connected to each other by a detachable connection manner such as a threaded connection or a snap connection.
In some embodiments, the bag opening mechanism 20 includes two bag opening members 21 for opening the mouths of the homogenization bags 60, an electromagnet 211 disposed on the bag opening members 21, a bag opening driving member, and at least one guiding member 22, in this embodiment, the two bag opening members 21 are disposed oppositely, and the homogenization bags 60 are sandwiched between the two oppositely disposed bag opening members 21. Specifically, the bag opening member 21 may be a plate-shaped bag opening member 21, and two oppositely disposed plate-shaped bag opening members may be disposed in parallel or may be disposed in an inclined manner, so that the distance between the bottoms of the two plate-shaped bag opening members is greater than the distance between the tops of the two plate-shaped bag opening members, and the bottom of the two plate-shaped bag opening members forms an accommodating space for accommodating the liquid-filled homogenizing bag 60; in other embodiments, referring to fig. 2, the side surface of the bag opening member 21 is "7", that is, the upper part of the plate-shaped bag opening member is provided with a protrusion for clamping the homogenization bag 60, the protrusions on the two bag opening members 21 are oppositely arranged, when the two protrusions are closed to clamp the homogenization bag 60, a certain distance is left between the lower parts of the two bag opening members 21, so as to form a containing space for containing the liquid in the homogenization bag 60. The electromagnets 211 are respectively disposed on two opposite surfaces of the two oppositely disposed bag opening members 21, the position of the electromagnet 211 on the bag opening member 21 preferably corresponds to the position of the magnetic member 61 on the sidewall of the homogenizer bag 60, when the side surface of the bag opening member 21 is "7", the electromagnet 211 is preferably disposed on the protrusion, for example, the electromagnet 211 can be disposed on two opposite surfaces of the protrusion. The bag opening member 21 is matched with the guide member 22, and the bag opening driving member drives the bag opening member 21 to move along the guide member 22, specifically, the two oppositely arranged bag opening members 21 move on the guide member 22 in opposite directions, that is, the two bag opening members 21 can move relatively or move back to back. When the electromagnet 211 arranged on the bag opening member 21 is energized, the electromagnet 211 on the bag opening member 21 adsorbs the magnetic member 61 on the side wall of the homogeneous bag 60, and simultaneously the two bag opening members 21 move back along the guide member 22, so as to drive the two side walls of the homogeneous bag 60 to move in two opposite directions, thereby opening the bag mouth; after the liquid injection operation is completed, the two bag opening members 21 move oppositely along the guide member 22 to drive the opening of the homogenizing bag 60 to be folded, when the two side walls of the homogenizing bag 60 are close, the bag opening members 21 are powered off, the electromagnets 211 lose magnetism, the magnetic members 61 on the two side walls of the homogenizing bag 60 are mutually adsorbed, and then the homogenizing bag 60 is sealed.
Further, in some embodiments, referring to fig. 3, the guiding member 22 is a guiding groove 221 disposed on the base 10, the bottom of the bag opening member 21 is further provided with a guiding block 212 sliding in the guiding groove 221, two bag opening members 21 are moved along the guiding groove 221 by the guiding block 212, and the two guiding blocks 212 are moved in opposite directions in the guiding groove 221. Specifically, the guide groove 221 is preferably a linear guide groove, one guide groove 221 may be disposed on the base 10, or a plurality of guide grooves 221 may be disposed in parallel, two guide blocks 212 with opposite moving directions are disposed in each guide groove 221, the guide blocks 212 are fixedly connected with the bag opening member 21, and the two guide members 22 respectively drive the two bag opening members 21 to linearly move in the guide grooves 221 in opposite directions. In other embodiments, referring to fig. 4, the guiding element 22 is a guiding rail 222, the bottom of the pocket-opening member 21 is provided with a guiding groove 213 matching with the guiding rail 222, the guiding groove 213 is clamped on the guiding rail 222, two pocket-opening members 21 move along the guiding rail 222 through the guiding groove 213, and the two guiding grooves 213 move on the guiding rail 222 in opposite directions. Specifically, the guide rail 222 is preferably a linear guide rail, one guide rail 222 may be disposed on the base 10, or a plurality of guide rails 222 may be disposed in parallel, each guide rail 222 is provided with two guide grooves 213 with opposite moving directions, the guide grooves 213 are fixedly connected with the bag opening member 21, and the two guide grooves 213 respectively drive the two bag opening members 21 to linearly move on the guide rail 222 in opposite directions.
Annotate liquid mechanism 30 including establishing notes liquid body 31 of annotating liquid pipe 33 in, drive the notes liquid driving piece that annotates liquid body 31 and remove, annotate liquid body 31 and base 10 swing joint, be equipped with on annotating the liquid body 31 and be used for annotating the liquid mouth 311 of annotating to the homogeneity bag 60, annotate liquid body 31 and include the notes liquid pump 35 that draws the liquid in the stock solution container 11 to annotate liquid mouth 311, annotate liquid pipe 33 respectively with stock solution container 11 and annotate liquid mouth 311 intercommunication setting. In some embodiments, the liquid injection driving member can drive the liquid injection body 31 to move linearly, in this embodiment, a plurality of bag opening mechanisms 20 are arranged at intervals along the movement direction of the liquid injection body 31; in other embodiments, referring to fig. 5, the injection driving member can drive the injection body 31 to rotate, in this embodiment, a plurality of bag opening mechanisms 20 are arranged in a ring shape of the injection body 31, and preferably, a plurality of bag opening mechanisms 20 can be uniformly distributed in a ring shape of the injection body 31.
In some embodiments, the liquid injection driving member drives the liquid injection body 31 to rotate through the rotating disc 32, the rotating disc 32 is disposed between the liquid injection mechanism 30 and the base 10, the liquid injection body 31 is fixedly connected to the rotating disc 32, and the liquid injection pipe 33 extends through the rotating disc 32 to the liquid storage container 11. Further, the liquid injection body 31 comprises a column 313 fixedly connected with the rotating disc 32 and a liquid injection member 312 fixedly connected with the column 313, preferably, the liquid injection member 312 is arranged perpendicular to the column 313, one end of the liquid injection member 312 is fixedly connected with the column 313, the other end is provided with a liquid injection port 311, and the liquid injection port 311 and the column 313 are arranged on the same side of the liquid injection member 312. In some embodiments, the liquid injection tube 33 may be a flexible tube with an indefinite shape or a rigid tube with a fixed shape, and since the liquid injection environment needs to be maintained in an aseptic state, in some embodiments, the liquid injection tube 33 is detachably connected to the liquid injection body 31 so as to be able to remove the liquid injection tube 33 for sterilization, specifically, a buckle 36 for fixing the liquid injection tube 33 may be provided in the liquid injection body 31, and the liquid injection tube 33 is fixed in the liquid injection body 31 through the buckle 36.
In some embodiments, the height of the liquid injection port 311 is higher than that of the homogenization bag 60, so that the liquid injection body 31 can be driven by the liquid injection driving member to move the liquid injection port 311 to the position above the opened homogenization bag 60, and the liquid is injected into the homogenization bag 60 through the liquid injection pump 35.
The shell 50 covers the bag opening mechanism 20 and the liquid injection mechanism 30 and is detachably connected with the base 10. In some embodiments, a plurality of feeding ports 51 are provided at the top of the housing 50, and the number and the positions of the feeding ports 51 correspond to those of the homogenizer bags 60 one by one, so that the laboratory staff can feed materials into the homogenizer bags 60 after the openings of the homogenizer bags 60 are opened. In order to ensure that the homogenizer bag 60 is not polluted by the external environment during the experiment, a cover body 52 covering the feeding port 51 is preferably arranged on the feeding port 51, the cover body 52 is movably connected with the feeding port 51, in some embodiments, the cover body 52 is rotatably connected with the feeding port 51, namely, the feeding port 51 is completely opened after rotating 180 degrees, and the cover body 52 completely covers the feeding port 51 after rotating 180 degrees, so that the feeding port 51 is closed. Of course, in other embodiments, the cover 52 and the dispensing opening 51 may also be connected in other manners known in the art, which are not described herein again. Further, in some embodiments, ultraviolet lamps are disposed within the housing 50 for continuous sterilization of the feeding port 51 and the cover 52 of the housing 50 and the components within the housing 50.
The automatic liquid injection device for the inspection further comprises a main controller which is in communication connection with the bag opening driving piece, the liquid injection driving piece and the liquid injection pump 35, and a power supply mechanism which supplies power to the bag opening mechanism 20, the liquid injection mechanism 30, the liquid injection pump 35 and the main controller. In some embodiments, the main controller controls the electromagnet 211 on the bag opening mechanism 20 to adsorb the magnetic member 61 on the wall of the homogeneous bag 60, controls the bag opening driving member to open the mouth of the homogeneous bag 60, controls the liquid injection mechanism 30 to move to above the homogeneous bag 60 with the mouth opened, controls the liquid injection pump 35 to inject liquid into the homogeneous bag 60, and after the liquid injection is completed, the main controller controls the next bag opening mechanism 20 to open the homogeneous bag 60, and controls the liquid injection mechanism 30 to move to above the next homogeneous bag 60, and simultaneously controls the bag opening mechanism 20 corresponding to the homogeneous bag 60 with the liquid injection completed to close the homogeneous bag 60.
Further, in some embodiments, the automatic fluid injection device for testing further comprises a positioning mechanism 40 communicatively connected to the main controller for positioning the injection port 311 above the opened homogenizer bag 60. The positioning mechanism 40 comprises a signal emitting element 41 and a signal receiving element 42, in some embodiments, the signal emitting element 41 is disposed on the base 10, and the signal receiving element 42 is disposed on the injection body 31; in other embodiments, the signal receiving element 42 is disposed on the base 10 and the signal emitting element 41 is disposed on the injection body 31. In the two embodiments, the signal emitting element 41 and the signal receiving element 42 are arranged oppositely in the vertical direction, the number of the signal emitting element 41 or the signal receiving element 42 arranged on the base 10 corresponds to the number of the bag opening mechanisms 20, the arrangement position of the signal emitting element corresponds to the position of the bag opening mechanism 20, when the liquid injection mechanism 30 moves, the signal receiving element 42 or the signal emitting element 41 corresponding to the bag opening mechanism 20 of the opened bag starts to work, the signal receiving element 42 receives a signal sent by the corresponding signal emitting element 41, or the corresponding signal receiving element 42 sends a positioning signal to the main controller after receiving the signal sent by the signal emitting element 41, and the main controller controls the liquid injection driving element to stop working and controls the liquid injection pump 35 to start to inject liquid. In some embodiments, the positioning mechanism 40 may be an infrared positioner, a laser positioner, or other positioner known in the art.
In some embodiments, a load cell 70 for weighing the sample is further disposed on the base 10, the load cell 70 is in communication with the main controller, the load cell 70 is disposed between the two bag-opening members 21 and is disposed corresponding to the homogenization bag 60, and the load cell 70 can automatically detect the weight of the sample after the user puts the sample into the homogenization bag 60. In some embodiments, the liquid injection mechanism 30 further includes a flow meter 34 for measuring the injection amount of the liquid injection body 31, the flow meter 34 is in communication connection with the control unit, and the weighing sensor 70 is matched to realize automatic liquid injection after the sample is input; in this embodiment, the main controller further includes a memory, where the memory stores the corresponding relationship between the sample weight and the injection amount, the main controller reads the sample weight of the weighing sensor 70 and obtains the corresponding preset injection amount, and the on/off of the injection pump 35 is further controlled by reading the real-time injection amount of the flow meter 34. That is, after the experimenter added the sample to the opened homogeneous bag 60, the weight sensor identified the current sample weight and sent to the main controller, the main controller obtained the preset injection amount corresponding to the current sample weight through the corresponding relationship between the sample weight and the injection amount in the memory, and controlled the opening of the injection pump 35, when the flowmeter 34 detected that the injection amount reached the preset injection amount, the main controller controlled the injection pump 35 to stop working, and simultaneously controlled the bag opening driving member to drive the bag opening mechanism 20 to close the bag opening, and controlled the injection driving member to drive the injection body 31 to move to the top of the next opened homogeneous bag 60.
The following are specific operation steps of one embodiment of the automatic liquid injection device for the inspection provided by the invention:
s1, starting up, controlling one bag opening mechanism 20 to be electrified by a main controller, namely, an electromagnet 211 adsorbs a magnetic piece 61 on a homogeneous bag 60, driving the bag opening mechanism 20 to drive two bag opening pieces 21 to move along the direction to the back, and further opening a bag opening;
s2, separating the cover body 52 from the feeding port 51 by an experimenter, and feeding a sample into the homogenizing bag 60 with the mouth opened through the feeding port 51;
s3, after the weighing sensor 70 detects the weight of the sample in the homogenizing bag 60, automatically identifying the preset liquid injection amount corresponding to the weight of the sample, simultaneously controlling the liquid injection driving piece by the main controller to drive the liquid injection body 31 to rotate, and after the signal receiving piece 42 receives a signal sent by the signal sending piece 41 corresponding to the bag opening mechanism 20 of the opened bag, controlling the liquid injection driving piece to stop working by the main controller, positioning the liquid injection port 311 above the homogenized bag 60 of the opened bag, and controlling the liquid injection pump 35 to start liquid injection;
s4, when the flow meter 34 detects that the liquid injection amount reaches the preset liquid injection amount corresponding to the weight of the sample, the main controller controls the liquid injection pump 35 to stop working, the bag opening driving piece controls the two bag opening pieces 21 to move oppositely to restore the original state, meanwhile, the electromagnet 211 on the bag opening mechanism 20 is powered off, the bag opening of the homogeneous bag 60 filled with liquid in the middle of the bag opening mechanism 20 is closed under the attraction effect of the magnetic pieces 61 on the two side walls, the liquid injection work is completed, and meanwhile, the next bag opening mechanism 20 is powered on to start working to perform the next liquid injection work.
S5, stopping working after the main controller detects that all homogeneous bags 60 are filled with liquid completely, or stopping the filling work of the automatic filling device for inspection by an experimenter through power failure;
s6, separating the shell 50 from the base 10, and taking out the homogeneous bag 60 filled with the liquid by an experimenter to perform the next operation.
By utilizing the automatic liquid injection device for inspection, provided by the invention, automatic sequential liquid injection of a plurality of homogeneous bags or culture bags with samples can be realized, automatic complete sealing or local sealing can be realized, the manual participation is reduced, and the working efficiency is improved.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. An automatic priming device is used in inspection, its characterized in that includes:
the device comprises a base (10), wherein a liquid storage container (11) is arranged in the base (10);
at least one bag opening mechanism (20) disposed on the base (10), comprising: the device comprises two bag opening pieces (21) for opening the mouth of a homogenizing bag (60), an electromagnet (211) arranged on the bag opening pieces (21), a bag opening driving piece, at least one guide piece (22) and at least one pair of magnetic pieces (61) which are mutually attracted and arranged on two side walls of the homogenizing bag (60), wherein the homogenizing bag (60) is clamped between the two bag opening pieces (21); the two bag opening pieces (21) are arranged oppositely, and the electromagnets (211) are respectively arranged on two opposite surfaces of the two bag opening pieces (21) which are arranged oppositely;
before liquid injection, the electromagnet (211) is electrified, the electromagnet (211) on the bag opening piece (21) adsorbs the magnetic piece (61) on the side wall of the homogenizing bag (60), and the two oppositely arranged bag opening pieces (21) move on the guide piece (22) along opposite directions to drive the two side walls of the homogenizing bag (60) to move towards opposite directions, so that the homogenizing bag (60) is opened; after the liquid injection is finished, the two oppositely arranged bag opening pieces (21) move on the guide piece (22) along opposite directions, the electromagnet (211) is powered off, the magnetic pieces (61) arranged in pairs attract each other, and the homogenizing bag (60) is closed;
the guide piece (22) is a guide groove (221), the bottom of the bag opening piece (21) is provided with a guide block (212) which slides in the guide groove, the two bag opening pieces (21) move along the guide groove (221) through the guide block (212), and the moving directions of the two guide blocks (212) in the guide groove (221) are opposite; or the guide piece (22) is a guide rail (222), the bottom of the bag opening piece (21) is provided with a guide groove (213) matched with the guide rail (222), two bag opening pieces (21) move along the guide rail (222) through the guide groove (213), and the moving directions of the two guide grooves (213) on the guide rail (222) are opposite;
the magnetic piece (61) is a strip-shaped magnetic piece with the same width as the homogenizing bag (60), and the strip-shaped magnetic piece is arranged in parallel with the width direction of the homogenizing bag (60); or the magnetic pieces (61) are at least two magnetic sheets arranged on the side wall of the homogenizing bag (60) at intervals;
a liquid injection mechanism (30) disposed on the base (10), comprising: the liquid injection device comprises a liquid injection body (31) internally provided with a liquid injection pipe (33), and a liquid injection driving piece for driving the liquid injection body (31) to move, wherein the liquid injection body (31) is movably connected with the base (10), a liquid injection port (311) for injecting liquid into the homogenizing bag (60) is arranged on the liquid injection body (31), the liquid injection body (31) comprises a liquid injection pump (35) for sucking the liquid in the liquid storage container (11) to the liquid injection port (311), and the liquid injection pipe is respectively communicated with the liquid storage container (11) and the liquid injection port (311);
the main controller is in communication connection with the bag opening driving piece, the liquid injection driving piece and the liquid injection pump;
the power supply mechanism is used for supplying power to the bag opening mechanism (20), the liquid injection mechanism (30), the liquid injection pump (35), the bag opening driving piece and the main controller;
the liquid injection mechanism (30) moves the liquid injection port (311) to a position corresponding to the opening of the opened homogeneous bag (60) under the driving of the liquid injection driving piece, and liquid is injected into the homogeneous bag (60) through the liquid injection pump (35);
the base (10) is also provided with a weighing sensor (70) for weighing the sample, the weighing sensor (70) is in communication connection with the main controller, and the weighing sensor (70) is arranged between the two bag opening pieces (21) and is arranged corresponding to the homogenizing bag (60);
the liquid injection mechanism (30) further comprises a flow meter (34) used for measuring the liquid injection amount of the liquid injection body (31), and the flow meter (34) is in communication connection with the main controller;
the main controller further comprises a storage, the storage stores the corresponding relation between the sample weight and the liquid injection amount, the main controller reads the sample weight of the weighing sensor (70), obtains the preset liquid injection amount corresponding to the sample weight, and controls the opening and closing of the liquid injection pump (35) by reading the numerical value of the flow meter and comparing the numerical value with the preset liquid injection amount.
2. The automatic liquid injection device for the inspection according to claim 1, wherein the liquid injection driving member drives the liquid injection body (31) to rotate through a rotating disc (32), the liquid injection body (31) is fixedly connected with the rotating disc (32), and the liquid injection pipe (33) extends into the liquid storage container (11) through the rotating disc (32).
3. The automatic liquid injection device for the inspection according to claim 2, wherein the liquid injection body (31) comprises a column (313) fixedly connected with the rotating disk (32) and a liquid injection piece (312) fixedly connected with the column (313), one end of the liquid injection piece (312) is fixedly connected with the column (313), the other end of the liquid injection piece is provided with the liquid injection port (311), and the liquid injection port (311) and the column (313) are connected to the same side of the liquid injection piece (312).
4. The automatic priming device for the inspection according to claim 3, further comprising a positioning mechanism (40) communicatively connected with the main controller, wherein the positioning mechanism (40) comprises a signal emitting element (41) and a signal receiving element (42), one of the signal emitting element (41) and the signal receiving element (42) is arranged on the base (10), the other of the signal emitting element (41) and the signal receiving element (42) is arranged on the priming element (312), and the signal emitting element (41) and the signal receiving element (42) are oppositely arranged in a vertical direction;
the number and the arrangement positions of the signal emitting pieces (41) or the signal receiving pieces (42) arranged on the base (10) correspond to those of the bag opening mechanisms (20) one by one;
and after receiving the signal of the signal emitting piece (41), the signal receiving piece (42) sends a positioning signal to the main controller, and the main controller controls the liquid injection driving piece to stop working and controls the liquid injection pump to start injecting liquid.
5. The automatic priming device for testing of claim 1, wherein said reservoir (11) is detachably connected to said base (10), and said priming tube (33) is detachably connected to said priming body (31).
6. The automatic liquid injection device for the inspection according to claim 1, further comprising a housing (50) covering the bag opening mechanism (20) and the liquid injection mechanism (30), wherein the housing (50) is detachably connected to the base (10), the top surface of the housing (50) is provided with material feeding ports (51) corresponding to the positions and the number of the homogeneous bags (60), the material feeding ports (51) are provided with cover bodies (52) covering the material feeding ports (51), and the cover bodies (52) are movably connected to the material feeding ports (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483174.XA CN112774561B (en) | 2020-12-15 | 2020-12-15 | Automatic liquid injection device for inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483174.XA CN112774561B (en) | 2020-12-15 | 2020-12-15 | Automatic liquid injection device for inspection |
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| Publication Number | Publication Date |
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| CN112774561A CN112774561A (en) | 2021-05-11 |
| CN112774561B true CN112774561B (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011483174.XA Active CN112774561B (en) | 2020-12-15 | 2020-12-15 | Automatic liquid injection device for inspection |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07257518A (en) * | 1994-03-24 | 1995-10-09 | Samejima Bankin Kogyo Kk | Container gas and opening device thereof |
| JPH11314602A (en) * | 1998-05-08 | 1999-11-16 | Furukawa Mfg Co Ltd | Method and device of metering, filling and packaging |
| CN107410814A (en) * | 2017-08-01 | 2017-12-01 | 湖南丰祥润食品有限公司 | It is a kind of suitable for nutrition powder solid beverage of pregnant woman and preparation method thereof |
| CN111232269A (en) * | 2020-01-14 | 2020-06-05 | 王玲 | Filling method of soft bag infusion product |
| CN212023149U (en) * | 2020-01-15 | 2020-11-27 | 辽宁东萌肥业科技有限公司 | Fertilizer packaging machine |
-
2020
- 2020-12-15 CN CN202011483174.XA patent/CN112774561B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07257518A (en) * | 1994-03-24 | 1995-10-09 | Samejima Bankin Kogyo Kk | Container gas and opening device thereof |
| JPH11314602A (en) * | 1998-05-08 | 1999-11-16 | Furukawa Mfg Co Ltd | Method and device of metering, filling and packaging |
| CN107410814A (en) * | 2017-08-01 | 2017-12-01 | 湖南丰祥润食品有限公司 | It is a kind of suitable for nutrition powder solid beverage of pregnant woman and preparation method thereof |
| CN111232269A (en) * | 2020-01-14 | 2020-06-05 | 王玲 | Filling method of soft bag infusion product |
| CN212023149U (en) * | 2020-01-15 | 2020-11-27 | 辽宁东萌肥业科技有限公司 | Fertilizer packaging machine |
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| Publication number | Publication date |
|---|---|
| CN112774561A (en) | 2021-05-11 |
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