CN107402273A - automatic sampling component and three-dimensional automatic sampling system - Google Patents
automatic sampling component and three-dimensional automatic sampling system Download PDFInfo
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- CN107402273A CN107402273A CN201710742150.3A CN201710742150A CN107402273A CN 107402273 A CN107402273 A CN 107402273A CN 201710742150 A CN201710742150 A CN 201710742150A CN 107402273 A CN107402273 A CN 107402273A
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- Prior art keywords
- sampling
- guide rail
- extension spring
- block
- automatic sampling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/24—Automatic injection systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
- G01N2030/201—Injection using a sampling valve multiport valves, i.e. having more than two ports
Abstract
A kind of automatic sampling component, on a sampling assemble fixed part of automatic sampling system, automatic sampling component includes：One extension spring fixed plate, two extension springs, a guide rail, a sliding block, a contiguous block, a pressure bottle block, a sampling needle stand, contiguous block are fixedly connected with sampling assemble fixed part, and sliding block and sampling needle stand are respectively fixed with contiguous block；Guide rail is arranged on sliding block, guide rail is formed slide construction with sliding block；The upper end of guide rail is fixed with the extension spring fixed plate, and the lower end of guide rail is fixed with the pressure bottle block；Two extension springs are separately positioned on the both sides of guide rail, and are arranged between extension spring fixed plate and contiguous block, and in the state that is stretched in the presence of extension spring fixed plate and contiguous block；Sampling probe is fixed with sampling needle stand.The automatic sampling component of the present invention can quickly, reasonably push down sample bottle, realize sampling, and sampling probe can quickly depart from sample bottle.
Description
Technical field
The present invention relates to automatic sampling system, more particularly to a kind of automatic sampling component and include automatic sampling component
Three-dimensional automatic sampling system.
Background technology
In fields such as biology, chemistry, medical treatment, chemical industry, with the development of automatic technology, automatic sampling system progressively generation
Substitute is dynamic to be sampled, as one of key link for obtaining sample.Using automatic sampling system, user can be completed from specific sample
Automatically a certain amount of sample is obtained in product container, then by the target containers such as sample delivery to blender, waits and sample is done
The further processing such as detection.
Have as a chromatography instrument comprises at least：Infusion pump, automatic sampling system, chromatographic column, chromatographic detection system,
Analysis system etc..
The infusion pump is used to provide mobile phase for whole chromatograph analytical instrument, and mobile phase is in chromatography instrument
Carry the material that detected sample moves forward, such as acetonitrile-aqueous solution, methanol-water solution etc..
The automatic sampling system is used to automatically take out detected sample from shuttle, then passing ratio valve
Sample and flowing are mixed, are then fed into chromatographic column.
The chromatographic column is used to separate sample with the mixed liquid of mobile phase, due to each component in sample
Have with the stationary phase (stationary phase is phase that is fixed, separating sample, such as silica gel etc. in chromatography instrument) in chromatographic column
There is different polarity, when mobile phase flows through chromatographic column, by the separation of stationary phase, sample is separated out from mobile phase successively, etc.
The detection of examining system to be checked.
Chromatographic detection system is used to detect the sample being separated in chromatographic column, is converted to corresponding optical signal or telecommunications
Number, it is then sent to analysis system and carries out qualitative and/or quantitative analysis, chromatographic detection system can be fluorescence detecting system, two poles
Pipe array detection systems, electrochemical detection system etc..
Analysis system is upper computer software, for detecting obtained optical signal to chromatographic detection system or electric signal is deposited
Storage and analysis, analysis result is shown to user.
Automatic sampling system is needed to carry out automatic sampling from sample bottle, and sample bottle is placed in sample tray, is taken automatically
Sample system generally requires pushes down corresponding sample bottle by pressure bottle part first, then sampling probe is punctured to the rubber blanket of sample bottle
Piece, sampling probe is contacted with sample, be then sampled, after the completion of sampling sampling probe need depart from sample bottle rubber sheet gasket,
Set back, wait next sub-sampling.
, it is necessary to face following problem in whole sampling process：
1st, how correctly and the excessive sample bottle of pushing down that will not exert oneself is always all the size of sample bottle is varied,
The problem of existing；
2nd, how sampling probe is rapidly separated sample bottle, is also one of to need to solve the problems, such as without taking up sample bottle.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of automatic sampling component, can quickly, reasonably push down
Sample bottle, sampling is realized, and sampling probe can quickly depart from sample bottle.
Automatic sampling component provided by the invention is arranged on a sampling assemble fixed part of automatic sampling system：
The automatic sampling component includes：One extension spring fixed plate, two extension springs, a guide rail, a sliding block, a company
Block, a pressure bottle block, a sampling needle stand are connect,
The contiguous block is fixedly connected with the sampling assemble fixed part, and the cunning is respectively fixed with the contiguous block
Block and the sampling needle stand；
The guide rail is arranged on the sliding block, the guide rail is formed slide construction with the sliding block；
The upper end of the guide rail is fixed with the extension spring fixed plate, and the lower end of the guide rail is fixed with the pressure bottle block；
Described two extension springs are separately positioned on the both sides of the guide rail, and are arranged on the extension spring fixed plate and the connection
Between block, and in the state that is stretched in the presence of the extension spring fixed plate and the contiguous block；
Sampling probe is fixed with the sampling needle stand.
Automatic sampling component provided by the invention is used as main body by being fixedly connected with contiguous block with sampling assemble fixed part,
Sampling needle stand and sliding block are installed on contiguous block, guide rail, guide rail and sliding block composition slide construction are set through sliding block, guide rail can
To be slided up and down along sliding block, extension spring fixed plate is fixed in guide rail upper end, extension spring, extension spring are installed between extension spring fixed plate and sliding block
All the time in the state being stretched, pressure bottle block is installed in the lower end of guide rail.During specific works, sampling assemble fixed part drives connection
Block moves downward, and because the stress of guide rail is only the pulling force of extension spring, therefore guide rail follows contiguous block to move downwardly together；When leading
After the pressure bottle block of rail lower end pushes down sampling bottle, sampling assemble fixed part continues to drive contiguous block to move downward, now due to guide rail
Lower end be sampled that bottle is withstood therefore guide rail is not moving with respect to sampling bottle, and contiguous block and sliding block then continue opposite rail to
Lower motion, during this extension spring progressively constantly stretched by fixed extension spring fixed plate and the contiguous block that moves downward so that
The stress of extension spring is stepped up, and the rubber sheet gasket of sampling bottle can be punctured by sampling the sampling probe installed on needle stand in this process
And it is sampled；After the completion of sampling, sampling assemble fixed part transfers to move upwards, drives sampling probe to depart from sampling bottle, Ran Hou
During being moved further up with component fixed part entirely, due to the effect of the pulling force of extension spring, guide rail and pressure bottle block one are driven
Motion upwards is played, completes primary sample process.In whole sampling process, due to the presence of guide rail, guide rail can be in the work of power
Relative slip freely is done along sliding block with lower, no matter the realization that the height of sample bottle, guide rail and extension spring can be adaptive
Quick pressure bottle, and due to guide rail and the effect of extension spring when sampling, sampling probe will not also take up sample bottle, whole sampling process for
All be for sample bottle progressively stress, progressively take off the process of power, rather than the process of hard stress, therefore whole sampling process stress
It is very smooth.
As a kind of for example, in automatic sampling component of the invention, two are respectively fixed with the contiguous block
Extension spring piece, described two extension springs are arranged between the extension spring fixed plate and the extension spring piece, and cause described two extension springs
Axle center and the guide rail parallel.
As another for example, in the automatic sampling component of the present invention, the sliding block is arranged on by the sampling probe
Seat and the contiguous block are surrounded in the space formed.
As another for example, in the automatic sampling component of the present invention, a through hole is provided with the pressure bottle block,
The fixed sampling probe is set through the through hole on the sampling needle stand.
As another for example, in the automatic sampling component of the present invention, the pressure bottle block includes articulamentum and branch
Layer is supportted, the U-shaped structure in cross section of the articulamentum, the top of the U-shape structure is arranged to square with the guide rail
Groove；The supporting layer is arranged on the bottom of the articulamentum, in cylinder type；The through hole through the articulamentum bottom and
The supporting layer.
As another for example, in the automatic sampling component of the present invention, optocoupler inspection is provided with the contiguous block
Device is surveyed, it is described for detecting that optocoupler catch, the optocoupler detector and the optocoupler catch are correspondingly fixed with the guide rail
Automatic sampling component is in initial zero position.
As another for example, in the automatic sampling component of the present invention, the optocoupler catch is L-shaped, wherein one
Side is fixed with the guide rail, and another a line is corresponding with the detecting position of the optocoupler detector.
As another for example, in the automatic sampling component of the present invention, it is disposed with the extension spring piece multiple
Extension spring fixing hole.
In order to solve above mentioned problem present in background technology, present invention also offers a kind of three-dimensional automatic sampling system,
The three-dimensional automatic sampling system includes automatic sampling component, and the automatic sampling component is arranged on the one of automatic sampling system
On individual sampling assemble fixed part：
The automatic sampling component includes：One extension spring fixed plate, two extension springs, a guide rail, a sliding block, a company
Block, a pressure bottle block, a sampling needle stand are connect,
The contiguous block is fixedly connected with the sampling assemble fixed part, and the cunning is respectively fixed with the contiguous block
Block and the sampling needle stand；
The guide rail is arranged on the sliding block, the guide rail is formed slide construction with the sliding block；
The upper end of the guide rail is fixed with the extension spring fixed plate, and the lower end of the guide rail is fixed with the pressure bottle block；
Described two extension springs are separately positioned on the both sides of the guide rail, and are arranged on the extension spring fixed plate and the connection
Between block, and in the state that is stretched in the presence of the extension spring fixed plate and the contiguous block；
Sampling probe is fixed with the sampling needle stand.
Automatic sampling component provided by the invention is by setting guide rail slide block structure, extension spring structure to be used as power in sampling process
Buffer structure, no matter the quick pressure bottle of realization that the height of sample bottle, guide rail and extension spring can be adaptive, and when sampling
Due to guide rail and the effect of extension spring, sampling probe will not also take up sample bottle, whole sampling process be all for sample bottle by
Walk stress, progressively take off the process of power, rather than the process of hard stress, therefore whole sampling process stress is very smooth.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the three-dimensional automatic sampling system 100 of the present invention；
Fig. 2 is the structural representation of the main view of the three-dimensional automatic sampling system 100 of the present invention；
Fig. 3 is the structural representation of the vertical view of the three-dimensional automatic sampling system 100 of the present invention；
Fig. 4 is the structural representation of the X-direction moving component 1 of the present invention；
Fig. 5 is the structural representation of the Y-direction moving component 2 of the present invention；
Fig. 6 is the another structural representation of the Y-direction moving component 2 of the present invention；
Fig. 7 is the structural representation of the Z-direction moving component 3 of the present invention；
Fig. 8 is the another structural representation of the Z-direction moving component 3 of the present invention；
Fig. 9 is the structural representation of the pressure bottle block 511 of the present invention；
Wherein, 100 be three-dimensional automatic sampling system, and 1 and 1 ' is X-direction moving component, and 2 and 2 ' be Y-direction moving component,
3 and 3 ' be Z-direction moving component, and 4 be bottom plate, and 5 be sampling portion, and 6 be sampling valve, and 11 and 12 are installing plates, and 13 and 15 are optical axises,
14 be the first leading screw, and 16 be square shaft, and 17 be the first leading screw drive division, and 18 be moving mass, and 21 be the second leading screw, and 22 be the second leading screw
Drive division, 23 be feed screw nut, and 24 be pinboard, and 25 and 26 are slide rails, and 27 be movable cover plate, and 28 be specimen holder, and 29 be sample
Bottle, 210 be the first sliding block, and 211 be the second sliding block, and 31 be gear, and 32 be square shaft drive division, and 33 be rack, and 51 be the first guide rail,
52 be the 3rd sliding block, and 53 be Four-slider, and 54 be contiguous block, and 55 be the second guide rail, and 56 be the 5th sliding block, and 57 be sampling needle stand,
58 be extension spring fixed plate, and 59 and 510 are extension springs, and 511 be pressure bottle block, and 512 be sampling probe, and 513 and 514 are extension spring pieces, and 515 be light
Coupling detector, 516 be optocoupler catch, and 517 be through hole, and 61 be articulamentum, and 62 be supporting layer, and 63 be square groove.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
With reference to refer to the attached drawing 1, accompanying drawing 1 shows a kind of three-dimensional automatic sampling system 100 of the present invention, includes X-direction
Kinematic system, Y-direction kinematic system, Z-direction kinematic system and bottom plate 4, X-direction kinematic system include two to be arranged in parallel
Group X-direction moving component 1 and 1 ', Y-direction kinematic system includes two groups of Y-direction moving components 2 and 2 ' be arrangeding in parallel, Z side
Include two groups of Z-direction moving components 3 and 3 ' being separately mounted in two groups of X-direction kinematic systems 1 and 1 ' to kinematic system, its
Middle X-direction moving component 1 and 1 ' is arranged on bottom plate 4, and Y-direction moving component 2 and 2 ' is arranged on X-direction moving component 1 and 1 '
Between bottom plate 4 on.
With reference to refer to the attached drawing 2 and accompanying drawing 4, the present embodiment is that specific embodiment moves to X-direction with X-direction moving component 1
System is described in detail.
In the present embodiment, X-direction moving component 1 includes installing plate 11 and 12, the optical axis 13 for being vertically arranged in both sides
With the 15, first leading screw 14, moving mass 18, the first leading screw drive division 17.
Installing plate 11 and 12 is vertically mounted on bottom plate 4, and installing plate 11 and 12, bottom plate 4 together constitute three-dimensional and taken automatically
The supporting construction of sample system 1.
Optical axis 13 and 15, leading screw 14 are arranged between two installing plates 11 and 12 in X direction, in the present embodiment X-direction
As horizontal direction, wherein leading screw 14 are arranged on the centre of optical axis 13 and optical axis 15, make leading screw 14, optical axis 13, optical axis 15 in Z side
To in straight line.
One end of leading screw 14 is connected with leading screw drive division 17, and leading screw drive division 17 is arranged on installing plate 11 in the present embodiment
Outside, leading screw drive division 17 can drive leading screw 14 to rotate.Leading screw drive division 17 can be directly constituted by stepper motor, stepping
Motor is directly connected with leading screw 14 or realized by stepper motor by timing belt, stepper motor is driven by timing belt
Leading screw 14 rotates.
The moving mass 18 is set through the leading screw 14, optical axis 13 and 15, moving mass 18 and the composition transmission knot of leading screw 14
Structure, leading screw drive division 17 can drive leading screw 14 to rotate, and the rotation of leading screw 14 can drive the left and right fortune in X direction of moving mass 18
It is dynamic, i.e., the rotational motion of motor is changed for the linear motion of moving mass 18, the direction of motion of moving mass 18, movement velocity,
Movement position etc. is controlled by motor rotational parameters.
Connect, set on leading screw 14 matched generally by feed screw nut between the moving mass 18 and leading screw 14
Feed screw nut, then moving mass 18 is fixed with feed screw nut, you can realize the biography between leading screw 14 and moving mass 18
Dynamic connection.
Set because moving mass 18 also extends through two optical axises 13 and 15, the light simultaneously when moving in X direction of moving mass 18
The limitation of axle 13,15 and leading screw 14 so that moving mass 18 will not produce front and rear swing or rock, and ensure that moving mass 18 one
Side-to-side movement on the straight line of bar X-direction, improve the precision of automatic sampling system 100.
Deformed as one kind, the leading screw drive division 17 can also be arranged on the outside of installing plate 12.
Deformed as one kind, the X-direction moving component 1 can comprise only one in optical axis 13 and 15.
Deformed as one kind, the position of the leading screw 14 can not be between optical axis 13 and optical axis 15, such as leading screw 14 is set
Put the top in optical axis 13 and optical axis 15.
As another deformation, the leading screw 14, the optical axis 13 and 15 can be staggered in z-direction.
With reference to refer to the attached drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 5 and accompanying drawing 6, the present embodiment is specific with Y-direction moving component 2
Y-direction kinematic system is described in detail embodiment.
Y-direction moving component 2 and 2 ' is arranged on the bottom plate 4 between two installing plates 11 and 12, and is parallel in the Y direction
Installation, two Y-direction moving components 2 are consistent with 2 ' structure.
Y-direction moving component 2 includes fixed mount, the second leading screw 21, the second leading screw drive division 22, sample tray, wherein
Leading screw 21 is arranged on fixed mount along Y-direction, and leading screw drive division 22 is fixed on fixed mount and the output of leading screw drive division 22 turns
Axle is fixedly connected with leading screw 21, and leading screw drive division 22 can drive leading screw 21 to rotate, leading screw 21 and sample tray composition transmission knot
Structure, the rotation of leading screw 21 can drive sample tray to be moved along a straight line along Y-direction.
In the present embodiment, Y-direction moving component 2 also includes two slide rails 25 and 26, and sample tray includes switching
Plate 24, movable cover plate 27, specimen holder 28.
Slide rail 25 and 26 is parallel to leading screw 21 and is separately mounted to the both sides of leading screw 21 and is fixed on fixed mount, sample carrier
The bottom of disk is provided with feed screw nut 23, and feed screw nut 23 directly forms drive mechanism with leading screw 21, in two slide rails 25 and 26
On be also respectively provided with matched the first sliding block 210 and the second sliding block 211.Leading screw drive division 22 can drive 21 turns of leading screw
Dynamic, the rotation driving feed screw nut 23 of leading screw 21 moves along a straight line forward or backward in the Y direction, and feed screw nut 23 is due to being and sample
What pallet was fixed, therefore sample tray moves along a straight line forward or backward under the drive of feed screw nut 23 along Y-direction.
The pallets of many sample bottles 29 can be prevented because sample tray is traditionally arranged to be, there is certain length and width
Degree, in order to avoid sample tray rolls tiltedly to a certain, two slide rails 25 and 26 is provided with to support sample tray so that sample carrier
Gravity is uniformly distributed when disk moves under the driving of leading screw 21, smooth, accurate along the slip of Y-direction；Particularly when sampling portion pair
When sample bottle 29 applies downward power, slide rail 25 and 26 can effectively support sample tray.
Pinboard 24 is the lower side part of sample tray, the bottom of pinboard 24 respectively with feed screw nut 23, sliding block 25
It is fixedly connected with 26, the movable cover plate 27 is installed on the top of pinboard 24, and the specimen holder is installed on the top of movable cover plate 27
28, specimen holder 28 is used to place sample bottle 29.Such set-up mode causes Y-direction moving component 2 to be easily assembled to, and is easily changed
Sample tray.
As a kind of for example, the slide rail 210 and 211 in the present embodiment is cylindrical slide rail, the corresponding He of sliding block 210
211 inner side is cylindrical structural.
Deformed as one kind, slide rail 25 and 26 can also use the slide rail of the other shapes such as square slide rail.
As another deformation, more are could be arranged to 25 and 26 corresponding sliding block of slide rail in the present embodiment.
As another deformation, the slide rail 25 and 26 in the present embodiment can also be omitted, and be made merely with leading screw 21 itself
For the supporting construction of sample tray.
As another deformation, the sample tray in the present embodiment can also be integrally formed structure, rather than discrete
It is designed as pinboard 24, movable cover plate 27, specimen holder 28.
As explanation, leading screw drive division 22 can be directly constituted by stepper motor, stepper motor directly connects with leading screw 21
Connect or realized by stepper motor by timing belt, stepper motor drives leading screw 21 to rotate by timing belt.
As explanation, sample bottle 29 can be the existing various sample bottles for placing fluid sample.
As explanation, Y-direction moving component 2 and 2 ' could be arranged to completely the same, and the leading screw drive division of the two can also
It is separately positioned on the both sides of Y-direction.
With reference to refer to the attached drawing 1, accompanying drawing 2, accompanying drawing 4, accompanying drawing 7 and accompanying drawing 8, the present embodiment is specific with Z-direction moving component 3
Y-direction kinematic system is described in detail embodiment.
Z-direction moving component 3 and Z-direction moving component 3 ' are completely the same structures, are separately mounted to two X-direction fortune
On dynamic component 1 and 1 ', moved left and right in X direction under the drive of X-direction moving component 1 and 1 '.
Z-direction moving component 3 includes square shaft 16, gear 31, square shaft drive division 32, rack 33, sampling portion 5.
Wherein, square shaft 16 is arranged between two installing plates 11 and 12, is parallel with leading screw 14 and optical axis 13 and optical axis 15
Set, gear 31 is arranged on moving mass 18 and is arranged and on square shaft 16, square shaft drive division 32 is fixedly connected with square shaft 16, tooth
Wheel 31 is equipped with the rack 33 along Z-direction, and sampling portion 5 is fixedly mounted with rack 33, can drive sampling portion 5 in X direction
Move left and right and moved up and down along Z-direction, square shaft drive division 32 is arranged on the outside of installing plate 12, can also be arranged on installation
The outside of plate 11.
Because gear 31 is fixedly connected with moving mass 18, thus can under the drive of moving mass 18 in X direction to the left or
Move right, therefore and drive sampling portion 5 to move to the left or to the right in X direction.Square shaft drive division 32 can drive square shaft
16 rotate, square shaft 16 rotate again can the rotation with moving gear 31, the rotation of gear 31 and then can be with carry-over bar 33 along Z side
To being moved upwardly or downwardly, and then drive sampling portion 5 to be moved upwardly or downwardly along Z-direction, be sampled.
Sampling portion 5 is described in detail below.
Sampling portion 5 includes the first guide rail 51, the 3rd sliding block 52, Four-slider 53, contiguous block 54, the second guide rail 55,
Five sliding blocks 56, sampling needle stand 57, extension spring fixed plate 58, extension spring 59 and 510, pressure bottle block 511, sampling probe 512, the and of extension spring piece 513
514th, optocoupler detector 515, optocoupler catch 516, wherein contiguous block 54, the second guide rail 55, the 5th sliding block 56, sampling needle stand 57,
Extension spring fixed plate 58, extension spring 59 and 510, pressure bottle block 511, sampling probe 512, extension spring piece 513 and 514, optocoupler detector 515, light
Coupling catch 516 etc. constitutes (automatic) sampling assemble, and gear 31, rack 33, moving mass 18, first guide rail 51 etc. constitute
The sampling assemble fixed part of (automatic) sampling assemble.
First guide rail 51 is fixed together with the rack 33 along Z-direction so that the first guide rail 51 can be in rack
Moved up and down under 33 drive along Z-direction.
Sliding block 52 and 53 is fixedly mounted on moving mass 18, and sliding block 52 and 53 forms sliding matching structure with guide rail 51,
So that guide rail 51 is slided in the path that sliding block 52 and 53 forms when being moved up and down along Z-direction, without producing left and right skew.
Contiguous block 54 is fixedly connected with guide rail 51, and contiguous block 54 can move up and down under the drive of guide rail 51 along Z-direction.
5th sliding block 56 and sampling needle stand 57 are installed on contiguous block 54, and sliding block 56 is arranged on the sampling He of needle stand 57
Contiguous block 54 is surrounded in the space formed, has saved space, also causes being more firmly mounted, being not likely to produce skew for sliding block 56.
Second guide rail 55 is arranged on the sliding block 56, guide rail 55 and sliding block 56 is formed slide construction, and guide rail 55 can be with
The straight line limited along sliding block 56 moves up and down.
The upper end of guide rail 55 is fixed with extension spring fixed plate 58,58 generally T-shaped structure of extension spring fixed plate, and both sides are used to install
Extension spring 59 and 510, extension spring 59 and 510 is separately positioned on the both sides of guide rail 55, and is installed in extension spring fixed plate 58 and contiguous block
Between 54, extension spring 59 and 510 is in the presence of extension spring fixed plate 58 and contiguous block 54 all the time in the state that is stretched.
In the present embodiment, two extension spring pieces 513 and 514, the He of extension spring piece 513 are respectively fixed with the both sides of contiguous block 54
Extension spring 59 and 510 is installed between 514 and extension spring fixed plate 58, and make it that the axle center of extension spring 59 and 510 is parallel with guide rail 55,
I.e. so that the axle center of two extension springs 59 and 510 is along Z-direction to be in straight line, best effect can be reached.
The axle center of extension spring 59 and 510 refers to：Because extension spring is generally cylindrical structure, the axle center of cylinder is the cylinder
The straight line that the center of circle of the circular section of body is limited, the straight line are the axle center of extension spring.
Pressure bottle block 511 is installed in the lower end of guide rail 55, pressure bottle block 511 is used to fix sample bottle 29 in sampling, made
Sample bottle 29 will not rock when must sample.
Sampling probe 512 is installed on sampling needle stand 57, a through hole 517 is provided with pressure bottle block 511 so that sampling
Pin 512 can pass through the through hole 517.
In the present embodiment, include articulamentum 61 and supporting layer 62 with reference to refer to the attached drawing 9, the pressure bottle block 511, connect
The U-shaped structure in cross section of layer 61, the top of U-shape structure are arranged to the square groove 63 matched with guide rail 55, under U-shape structure
Portion is through hole 517, supporting layer 62 in cylinder type, be arranged on the bottom of articulamentum 61, supporting layer 62 is directly and sample bottle during sampling
29 contacts, the middle part of supporting layer 62 are similarly the through hole 517, i.e. through hole 517 passes through bottom and the supporting layer 62 of articulamentum 61,
Sampling probe 512 is allowd to enter sample bottle 29 through through hole 517.
A screw hole is also provided with the square groove 63 of pressure bottle block 511, for by a screw by pressure bottle
Block 511 is fixed together with guide rail 55.
In the present embodiment, an optocoupler detector 515 is additionally provided with the contiguous block 54, it is corresponding on guide rail 55
It is provided with optocoupler catch 516, optocoupler detector 515 and optocoupler catch 516 can be used for detecting (or the automatic sampling group of sampling portion 5
Part) initial zero position is in, or in a certain precalculated position.
Deformed as one kind, the axial direction of the extension spring 59 and 510 can also deviate Z-direction, such as two Hes of extension spring 59
510 bottom can be to be received in the direction of direction guiding rail 55.
Deformed as one kind, the contiguous block 54 directly can be connected with extension spring 59 and 510, without extension spring piece 513
With 514.
Deformed as one kind, the sliding block 56 can not also in by contiguous block 54 and the space that surrounds of sampling needle stand 57,
It is but separately installed.
Deformed as one kind, on the pressure bottle block 511 can also by set the modes such as semi-surrounding hole fix sample bottle 29,
And sampling probe 512 is set to enter sample bottle 29 through pressure bottle block 511.
Deformed as one kind, the pressure bottle block 511 can also also can only with the structure of the shapes such as such as trapezoidal, rectangle
Reach the effect of fixed sample bottle 29.
As one kind for example, the optocoupler catch 516 is L-shaped, wherein a line is fixed with guide rail 55, another a line
Corresponding with the detecting position of optocoupler detector 515, optocoupler catch 516 can reach optocoupler detector 515 under the drive of guide rail 55
Detecting position, now show that sampling portion 5 (or automatic sampling component) reaches predetermined initial zero position, when sampling when, in guide rail
Under 55 drive, optocoupler catch 516 leave the detecting position of optocoupler detector 515, be sampled.
As one kind for example, being disposed with multiple extension spring fixing holes, Ke Yigen on the extension spring piece 513 and 514
Different extension spring fixing holes is selected according to the size of the pulling force of extension spring 59 and 510.
Specific sampling process is described in detail 1- accompanying drawings 9 below in conjunction with the accompanying drawings.
Using the direction shown in accompanying drawing 2 as forward direction, when user is carried out using three-dimensional automatic sampling system 100 of the present invention
During sampling, user needs to place the sample bottle 29 built with sample, sample on the specimen holder 28 of moving component 2 and 2 ' in the Y direction
Bottle 29 can select different models as needed, many individual sample bottles 29 can be placed with specimen holder 28, in two Y-directions
Identical sample can be placed with sample bottle on moving component 2 and 2 ', different samples can also be placed with.
Described two Z-direction moving components 3 are connected with the fixing end of 3 ' two sampling probes 512 by respective conduit
To same sampling valve 6, sampling valve 6 can be six-way valve, eight ways valve etc., and the sampling valve 6 shown in accompanying drawing 1 is six-way valve.
During specific connection, the sampling probe 512 of Z-direction moving component 3 is connected to one of them of sampling valve 6 by conduit and entered
Sample end, the sampling probe of Z-direction moving component 3 ' are connected to another sample introduction end of sampling valve 6 by conduit.
When specific sampling, in X-direction moving component 1, the first leading screw drive division 17 driving leading screw 14 rotates, the band of leading screw 14
The whole Z-direction moving component 3 of dynamic moving mass 18 and connection moving mass 18 moves to Y-direction moving component 2 to the left in X direction
Top, Y-direction moving component 2, under the driving of the second leading screw drive division 22, leading screw 21 rotates and drives specimen holder 28 along Y-direction
Move forward to the lower section of X-direction moving component 1 so that the sampling probe 512 of Z-direction moving component 3 is directed at Y-direction moving component
Sample bottle 29 on 2；In X-direction moving component 1 ', the first leading screw drive division driving leading screw rotates, and leading screw drives moving mass and company
The whole Z-direction moving component for connecing moving mass moves right the top of Y-direction moving component 2 ', Y-direction motion portion in X direction
In part 2 ', under the driving of the second leading screw drive division, leading screw rotate drive specimen holder 28 along Y-direction move rearwards to X-direction fortune
The lower section of dynamic component 1 ' so that the sample bottle on the sampling probe alignment Y-direction moving component 2 ' of Z-direction moving component 3 '.
Sampling valve 6 is switched in the path that the sampling probe 512 of Z-direction moving component 3 connects, then Z-direction motion portion
The square shaft drive division 32 of part 3 moves, and drives square shaft 16 and gear 31 to rotate, and the rotation of gear 31 can transport under the band row of carry-over bar 33
Dynamic, rack 33 can drive the guide rail 51 being fixedly connected with rack 33 synchronously to move downward, guide rail 51 can then drive contiguous block 54 to
Lower motion, the whole sampling portion 5 being connected with contiguous block 54 can move downward, and pressure bottle block 511 is first during moving downward
First contact and push down sample bottle 29, under the driving of square shaft drive division 32, whole sampling portion 5 continues to move downward, now due to
Pressure bottle block 511 with sample bottle 29 fix contact, pressure bottle block 511 and guide rail 55 no longer move, and rack 33, guide rail 51,
Contiguous block 54, sampling probe 512 etc. continue to move downward, and moving downward for contiguous block 54 can be continuous with the transfixion of guide rail 55
Two extension springs 59 and 510 are stretched, extension spring 59 and 510 is constantly further stretched by the effect of pulling force, until sampling probe 512 punctures
The rubber bottle cap of sample bottle 29, into being sampled in sample bottle 29, sampling probe 512 enters in sample bottle 29 the sample meeting obtained
Into in the quantitative loop of sampling valve 6, primary sample is completed, then square shaft drive division 32 rotates backward, drives square shaft 16 reversely to turn
Dynamic, square shaft 16 can rotate backward with moving gear 31, and rotating backward for gear 31 can move upwards with carry-over bar 33 and guide rail 51, lead
Rail 51 can drive the grade of contiguous block 54 to move upwards, because the pulling force of extension spring 59 and 510 continues to apply downward power to guide rail 55, pressure
Bottle block 511 remains stationary as, and sampling probe 512 progressively takes off the rubber bottle cap of power sample bottle 29, then continues up fortune in contiguous block 54
In dynamic process, the pulling force of extension spring 59 and 510 progressively reduce, the free degree of guide rail 55 is progressively released, drive pressure bottle block 511 from
Open sample bottle, return to initial position, the sampling process of the first step is completed.
After the completion of the sampling of the above-mentioned first step, the first leading screw drive division 17 whole sampling portion 5 can be driven to continue to transport to the left
Move and wash pin position, carry out washing pin (including inner and outer wall of sampling probe 512 etc.) operation.
It is above-mentioned wash pin operation during, sampling valve 6 is switched to the sampling probe connecting path of Z-direction moving component 3 '
In, Z-direction moving component 3 ' repeats the sampling process of above-mentioned Z-direction moving component 3：The square shaft driving of Z-direction moving component 3 '
Portion is moved, and drives square shaft and pinion rotation, and the rotation of gear can be moved under band carry-over bar row, and rack, which can drive to fix with rack, to be connected
The guide rail connect synchronously moves downward, and guide rail can then drive contiguous block to move downward, and the whole sampling portion being connected with contiguous block can
Move downward, pressure bottle block contacts and pushes down sample bottle first during moving downward, whole under the driving of square shaft drive division
Individual sampling portion continues to move downward, and now fixes contacting with sample bottle due to pressure bottle block, pressure bottle block and guide rail are no longer transported
It is dynamic, and rack, guide rail, contiguous block, sampling probe etc. continue to move downward, the transfixion moved downward with guide rail of contiguous block
Can constantly stretch two extension springs and, extension spring and constantly further stretched by the effect of pulling force, until sampling probe punctures sample bottle
Rubber bottle cap, into being sampled in sample bottle, sampling probe, which enters in sample bottle the sample obtained, can enter determining for sampling valve
Measure in ring, complete primary sample, then square shaft drive division rotates backward, drives square shaft to rotate backward, and square shaft can be anti-with moving gear
To rotation, rotating backward for gear can move upwards with carry-over bar and guide rail, and guide rail can drive contiguous block etc. to move upwards, due to
The pulling force of extension spring sum continues to apply downward power to guide rail, and pressure bottle block remains stationary as, and sampling probe progressively takes off the rubber of power sample bottle
Bottle cap, then during contiguous block continues up, the pulling force of extension spring sum progressively reduce, the free degree of guide rail progressively by
Release, pressure bottle block is driven to leave sample bottle, return to initial position, the sampling process of second step is completed.
After the completion of the sampling of above-mentioned second step, the first leading screw drive division can drive whole sampling portion continue to the left (or to
It is right) move to and wash pin position, carry out washing pin (including inner and outer wall of sampling probe etc.) operation, X-direction moving component 1 and Z side
Continue the sampling operation of next step to moving component 3, and sequentially repeat said process.
It should be noted that in above-mentioned sampling process, can be exchanged between two Y-direction moving components 2 and 2 ', or only
Above-mentioned sampling process can also be completed using a Y-direction moving component, simply need Y-direction moving component in every sub-sampling
Moved forward and backward.
It should be further stated that because the three-dimensional automatic sampling system 100 of the present invention includes and can be freely composed
Two groups of sampling systems of sampling system, it can also complete to carry out the sampling work of two kinds of samples, such as X-direction moving component simultaneously
1st, Y-direction moving component 2, Z-direction moving component 3 are used to be sampled sample 1 therein, X-direction moving component 1 ', Y side
It is used to be sampled sample 2 therein to moving component 2 ', Z-direction moving component 3 ' so that sampling plan is more diversified.
Sampling portion 5 of the present invention (or automatic sampling component) can be seen that by the description of above-mentioned sampling process
Due to using 59 and 510 fixed form as pressure bottle block 511 of free guide rail 55 and extension spring, different height can be perfectly adapted to
Sample bottle 29, will not because exert oneself it is excessive push down sample bottle 29, the extension spring 59 during sampling probe 512 departs from sample bottle 29
With 510 caused by power can push down pressure bottle block 511 again so that pressure bottle block 511 sampling probe 512 depart from sample bottle 29 before always can
Sample bottle 29 is pushed down, whole sampling process is quick, accurate, efficiency high, therefore the sampling portion 5 (or automatic sampling component) of the present invention
Scheme solve the problems, such as sample bottle size it is varied bring it is how correct, will not exert oneself it is excessive push down sample bottle, with
And how sampling probe is rapidly separated the problem of sample bottle is without taking up sample bottle.
The sampling process of the three-dimensional automatic sampling system 100 of the present invention is in two three-dimensional automatic sampling systems (respectively by X side
To moving component 1, Y-direction moving component 2, Z-direction moving component 3 and X-direction moving component 1 ', Y-direction moving component 2 ', Z
Direction moving component 3 ' forms) between switch successively, wash in pin operating process even in one of them three-dimensional sampling system, be another
Individual three-dimensional sampling system can also continuous firing, substantially increase the sampling efficiency of automatic sampling system, reduce two sub-samplings
Between time interval, can improve using the three-dimensional automatic sampling system 100 chromatography instrument analysis efficiency, contracting
Short analysis time, therefore the three-dimensional automatic sampling system of the present invention solves the problems, such as that the sampling efficiency of automatic sampling system is low.
Above-described is only the specific embodiment of the present invention, should be understood that the explanation of above example is simply used
In help understand the present invention method and its core concept, the protection domain being not intended to limit the present invention, it is all the present invention
Any modification for being made within thought and principle, equivalent substitution etc., should be included in the scope of the protection.
Claims (9)
- A kind of 1. automatic sampling component, on a sampling assemble fixed part of automatic sampling system, it is characterised in that：The automatic sampling component includes：One extension spring fixed plate, two extension springs, a guide rail, a sliding block, a connection Block, a pressure bottle block, a sampling needle stand,The contiguous block is fixedly connected with the sampling assemble fixed part, be respectively fixed with the contiguous block sliding block and The sampling needle stand；The guide rail is arranged on the sliding block, the guide rail is formed slide construction with the sliding block；The upper end of the guide rail is fixed with the extension spring fixed plate, and the lower end of the guide rail is fixed with the pressure bottle block；Described two extension springs are separately positioned on the both sides of the guide rail, and installed in the extension spring fixed plate and the contiguous block it Between, and in the state that is stretched in the presence of the extension spring fixed plate and the contiguous block；Sampling probe is fixed with the sampling needle stand.
- 2. automatic sampling component according to claim 1, it is characterised in that：It is respectively fixed with two extension spring pieces on the contiguous block, described two extension springs are arranged on the extension spring fixed plate and described Between extension spring piece, and cause the axle center of described two extension springs and the guide rail parallel.
- 3. automatic sampling component according to claim 1 or 2, it is characterised in that：The sliding block is arranged on to be surrounded in the space formed by the sampling needle stand and the contiguous block.
- 4. automatic sampling component according to claim 1, it is characterised in that：A through hole is provided with the pressure bottle block, the sampling probe fixed on the sampling needle stand is set through the through hole Put.
- 5. automatic sampling component according to claim 5, it is characterised in that：The pressure bottle block includes articulamentum and supporting layer,The U-shaped structure in cross section of the articulamentum, the top of the U-shape structure are arranged to square recessed with the guide rail Groove；The supporting layer is arranged on the bottom of the articulamentum, in cylinder type；The through hole passes through the bottom of the articulamentum and the supporting layer.
- 6. automatic sampling component according to claim 1, it is characterised in that：Optocoupler detector is provided with the contiguous block, optocoupler catch, the optocoupler inspection are correspondingly fixed with the guide rail Survey device and the optocoupler catch and be in initial zero position for detecting the automatic sampling component.
- 7. automatic sampling component according to claim 6, it is characterised in that：The optocoupler catch is L-shaped, and wherein a line is fixed with the guide rail, another a line and the detection of the optocoupler detector Position is corresponding.
- 8. automatic sampling component according to claim 2, it is characterised in that：Multiple extension spring fixing holes are disposed with the extension spring piece.
- A kind of 9. three-dimensional automatic sampling system, it is characterised in that：Including just like taking automatically any one of claim 1-8 Sample component.
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| CN108225874A (en) * | 2017-12-18 | 2018-06-29 | 中国原子能科学研究院 | A kind of mechanical arm separation module |
| CN108646009A (en) * | 2018-03-26 | 2018-10-12 | 潍坊科技学院 | A kind of multifunctional examining experiment device when blood sampling and its method of inspection |
| CN109633051A (en) * | 2019-02-19 | 2019-04-16 | 安徽皖仪科技股份有限公司 | Autosampler, liquid chromatograph and liquid chromatograph automatic sampling method |
| CN111896760A (en) * | 2020-07-15 | 2020-11-06 | 宁波华仪宁创智能科技有限公司 | Control method of closed space and automatic sample introduction method |
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| CN107402273B (en) | 2023-10-03 |
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