CN107764919A - A kind of Full automatic head-space sample injector mechanism and control method - Google Patents
A kind of Full automatic head-space sample injector mechanism and control method Download PDFInfo
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- CN107764919A CN107764919A CN201710759587.8A CN201710759587A CN107764919A CN 107764919 A CN107764919 A CN 107764919A CN 201710759587 A CN201710759587 A CN 201710759587A CN 107764919 A CN107764919 A CN 107764919A
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- sample
- tandem
- executing agency
- driving bogie
- temperature control
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000013461 design Methods 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 9
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004817 gas chromatography Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 4
- 238000004587 chromatography analysis Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
Head-space sampler is a kind of conveniently sample-pretreating method in gas chromatography.Full automatic head-space sample injector can realize automatic running, continuous analysis, unattended, and farthest play operating efficiency.The invention discloses a kind of Full automatic head-space sample injector mechanism and control method.Including executing agency, drive device, temperature control equipment and industrial computer (IPC).Executing agency is made up of two groups of the precision rotary positioning mechanisms A and B fixed on the table, and wherein sample disc is fixed on A, and heating dish is fixed on B, and A and B are respectively by two driving stepper motors.The analysis method that user calls is construed to the control logic of executing agency by IPC, and controls two stepper motors to produce relative motion, realizes sample disc hole position and the alignment of heating dish hole position, it is ensured that ml headspace bottle enters heating dish according to determination sequential.Due to installing heating module and temperature sensor in heating dish, the wire to solve in heating dish rotary movement winds problem, designs the signal transmitting apparatus being made up of copper ring and beryllium copper piece, realizes the structure decoupling of rotating mechanism and temperature control device.
Description
Technical field
The invention belongs to instrument field, more particularly to a kind of Full automatic head-space sample injector mechanism and control method.
Background technology
Headspace analysis techniques are that conveniently sample-pretreating method, its principle are to treat to one kind in gas chromatography
Test sample product are inserted in a closed container, volatile component is evaporated from sample matrices by heat temperature raising, in gas-liquid
Reach balance in (or gas-solid) two-phase, directly extract top gas and carry out chromatography, so as to volatile component in sample survey
Composition and content.
The testing process of headspace analysis techniques is：A certain amount of sample (solid or liquid) loads close in headspace sample bottle
Envelope, sample bottle reach balance each other (vapor liquid equilibrium or the gas-solid equilibrium) under certain temperature in the balance stove of head-space sampler,
The gas phase balanced in sample bottle headroom is imported in sample loop by the sampling system of head-space sampler again, then passes through top
Gas in sample loop is blown into the injection port of gas-chromatography, then the chromatographic column for passing through gas chromatograph by the carrier gas of empty injector
Separation detection is realized with detector.
1962, Beckman instrument companies put into effect the manual head-space sampler of First in the world.1967, Perkin
Elmer companies are proposed First automation head-space sampler in the world.Headspace analysis techniques are developed rapidly, both at home and abroad
There are a large amount of full-automatic headspace sampler Related products.Executing agency's overwhelming majority of current such product is using as follows
Design：Ml headspace bottle is positioned in sample disc, and can follow sample disc rotary motion to setting position, a Three Degree Of Freedom
Manipulator capture ml headspace bottle from setting position, and be put into tandem-driving bogie constant temperature Balance Treatment.This design needs four axles electricity
Machine controls, and includes the motion of head space disc spins and the manipulator control of the Three Degree Of Freedom of 3 axles of 1 axle.This undoubtedly increase system into
This, causes full-automatic headspace sampler valuable product.
The content of the invention
The shortcomings that it is an object of the invention to overcome prior art and deficiency, there is provided a kind of Full automatic head-space sample injector machine
Structure and control method, pass through mechanism optional design so that the action that ml headspace bottle enters tandem-driving bogie only needs 2 spindle motors to control
Complete, system cost purpose is reduced so as to reach.
The present invention is achieved through the following technical solutions：
1st, a kind of Full automatic head-space sample injector mechanism and control method, it is characterised in that：
Including executing agency, drive device, temperature control equipment and industrial computer (IPC).Executing agency is by fixing
Two groups of precision rotary positioning mechanisms A and B composition on the table, wherein sample disc is fixed on A, and tandem-driving bogie is fixed on B
On, A and B are respectively by two driving stepper motors.The control that the analysis method that user calls is construed to executing agency by IPC is patrolled
Volume, and control two stepper motors to produce relative motion, realize the peace weighing apparatus case hole position alignment of sample disc hole position, it is ensured that ml headspace bottle
Enter heating dish according to determination sequential.Due to installing heating module and temperature sensor on tandem-driving bogie, to solve tandem-driving bogie rotation
Wire winding problem in motion process, designs the signal transmitting apparatus being made up of copper ring and beryllium copper piece, realizes rotating mechanism
With the structure decoupling of temperature control device.
2nd, a kind of Full automatic head-space sample injector device according to claim 1 and control method, it is characterised in that：
The design of executing agency：
(1), executing agency is made up of two groups of the precision rotary positioning mechanisms A and B fixed on the table；
(1), precision rotary positioning mechanism A includes stepper motor, decelerator, sample disc holder and can place 36 tops
The sample disc of empty bottle is formed；
(3), precision rotary positioning mechanism B includes stepper motor, decelerator, heating disc holder and can place 9 tops
The tandem-driving bogie of empty bottle is formed；
(4), precision rotary positioning mechanism A and B can produce relative motion under IPC controls, realize tandem-driving bogie hole position and sample
Product disk hole position is aligned, it is ensured that ml headspace bottle can accurately fall into tandem-driving bogie according to setting sequential, realize that constant temperature is handled.
3rd, a kind of Full automatic head-space sample injector device according to claim 1 and control method, it is characterised in that：
The structure decoupling of executing agency and temperature control equipment designs：
(1), head-space sampler is a kind of conveniently sample-pretreating method in gas chromatography, its principle be by
Testing sample is inserted in a closed container, volatile component is evaporated from sample matrices by heat temperature raising, in gas
Reach balance in liquid (or gas-solid) two-phase, directly extract top gas and carry out chromatography, so as to volatility group in sample survey
The composition and content divided, therefore precise temperature control device is key technology therein；
(2), the heating module in temperature control equipment and temperature sensor are arranged on tandem-driving bogie, it is therefore desirable to are solved
Wire winding problem in tandem-driving bogie rotary movement.
(3), 4 copper rings are fixed on tandem-driving bogie, and are rotated together in company with tandem-driving bogie, by exhausted between copper ring
Edge body is isolated, and is connected respectively with two wires of heating module and two wires of temperature sensor.
(4) 4 Elastic simply-supported beams, are process using beryllium copper, 4 Elastic simply-supported beams are insulated using epoxy resin board, and
Fixed on the table by support C.Four wires are drawn on 4 Elastic simply-supported beams respectively to connect with temperature control system.
(5), by adjusting the installation sites of support C on the table so that Elastic simply-supported beam is with certain pre-pressing force
Contacted with copper ring, dynamic contact is formed, so as to realize the structure decoupling of executing agency and temperature control equipment.
Embodiment
The present invention is more specifically described in detail with reference to specific embodiment.
Embodiment
1. executing agency
(1), precision rotary positioning mechanism A includes stepper motor, driver, decelerator, sample disc holder and can placed
The sample disc of 36 ml headspace bottles is formed.The type selecting of wherein stepper motor, driver and decelerator is shown in Table 1, sample disc holder and
Sample disc is made by oneself.
Table 1
(2), precision rotary positioning mechanism B includes stepper motor, decelerator, balance cassette carrier and can place 9 head spaces
The tandem-driving bogie of bottle is formed.The type selecting of wherein stepper motor, driver and decelerator is shown in Table 2.Balance cassette carrier peace weighing apparatus case certainly
System.
Table 2
(3), precision rotary positioning mechanism A and B relative positions should be able to realize tandem-driving bogie hole position and the alignment of sample disc hole position,
Ensure that ml headspace bottle can accurately fall into tandem-driving bogie according to setting sequential, realize that constant temperature is handled, such as Fig. 3 and Fig. 4.
2. the structure decoupling of executing agency and temperature control equipment designs：
(1), 4 copper ring materials are red copper bar, and heater and temperature sensor pass through 4 wires and 4 copper rings respectively
Connect, the insulating material between copper ring is polytetrafluoroethylene (PTFE), and copper ring and insulator are fixed on tandem-driving bogie transfer panel, is such as schemed
2。
(2), 4 Elastic simply-supported beams use thickness to be formed for 3mm beryllium copper printed line cutting processing, and use epoxy resin
Plate is fixed on the table as insulating body by support.Four wires and temperature are drawn on 4 Elastic simply-supported beams respectively
Control system connects, such as Fig. 2.
(3), the installation site adjustment amounts of support C on the table, need to be between the Elastic simply-supported beam and copper ring according to setting
Pre-pressing force size, to spring beam Elastic simply-supported beam carry out finite element analysis, obtain Elastic simply-supported beam stress and strain curve
After determine, such as Fig. 5, Fig. 6 and Fig. 7.
As described above, the present invention can be better realized.
Brief description of the drawings
Two groups of precision rotary positioning mechanisms of Fig. 1 executing agencies
Fig. 2 executing agencies and the structure decoupling of temperature control equipment
Fig. 3 tandem-driving bogies hole position and sample disc hole position alignment top view
Fig. 4 tandem-driving bogies hole position and sample disc hole position alignment side view
The finite element analysis of Fig. 5 Elastic simply-supported beams
The strain figure of Fig. 6 Elastic simply-supported beams
The strain figure of Fig. 7 Elastic simply-supported beams
The stress diagram of Fig. 8 Elastic simply-supported beams.
Claims (3)
1. a kind of Full automatic head-space sample injector mechanism and control method, it is characterised in that：
Including executing agency, drive device, temperature control equipment and industrial computer (IPC).Executing agency is by being fixed on work
Two groups of precision rotary positioning mechanisms A and B composition on platform, wherein sample disc is fixed on A, and tandem-driving bogie is fixed on B, and A and B divide
Not by two driving stepper motors.The analysis method that user calls is construed to the control logic of executing agency by IPC, and controls two
Individual stepper motor produces relative motion, realizes the peace weighing apparatus case hole position alignment of sample disc hole position, it is ensured that ml headspace bottle is according to determination sequential
Into heating dish.Due to installing heating module and temperature sensor on tandem-driving bogie, to solve in tandem-driving bogie rotary movement
Wire winds problem, designs the signal transmitting apparatus being made up of copper ring and beryllium copper piece, realizes the knot of rotating mechanism and temperature control device
Structure decouples.
2. a kind of Full automatic head-space sample injector device according to claim 1 and control method, it is characterised in that：
The design of executing agency：
(1), executing agency is made up of two groups of the precision rotary positioning mechanisms A and B fixed on the table；
(1), precision rotary positioning mechanism A includes stepper motor, reduction box, sample disc holder and can place 36 ml headspace bottles
Sample disc form；
(3), precision rotary positioning mechanism B includes stepper motor, reduction box, heating disc holder and can place 9 sample bottles
Balancing frame is formed；
(4), precision rotary positioning mechanism A and B can produce relative motion under IPC controls, realize tandem-driving bogie hole position and sample disc
Hole position is aligned, it is ensured that ml headspace bottle can accurately fall into tandem-driving bogie according to setting sequential, realize that constant temperature is handled.
3. a kind of Full automatic head-space sample injector device according to claim 1 and control method, it is characterised in that：
The structure decoupling of executing agency and temperature control equipment designs：
(1), head-space sampler is that conveniently sample-pretreating method, its principle are will to treat test sample to one kind in gas chromatography
Product are inserted in a closed container, volatile component is evaporated from sample matrices by heat temperature raising, in gas-liquid (or gas
Gu) reach balance in two-phase, directly extract top gas and carry out chromatography, so as to the composition of volatile component in sample survey
And content, therefore precise temperature control device is key technology therein；
(2), the heating module in temperature control equipment and temperature sensor are arranged on tandem-driving bogie, it is therefore desirable to solve tandem-driving bogie
Wire winding problem in rotary movement.
(3), 4 copper rings are fixed on tandem-driving bogie, and are rotated together in company with tandem-driving bogie, between copper ring by insulator every
From, and be connected respectively with two wires of heating module and two wires of temperature sensor.
(4) 4 Elastic simply-supported beams, are process using beryllium copper, 4 Elastic simply-supported beams are insulated using epoxy resin board, and are passed through
Support C is fixed on the table.Four wires are drawn on 4 Elastic simply-supported beams respectively to connect with temperature control system.
(5), by adjusting the installation sites of support C on the table so that Elastic simply-supported beam is with certain pre-pressing force and copper
Ring contacts, and dynamic contact is formed, so as to realize the structure decoupling of executing agency and temperature control equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710759587.8A CN107764919A (en) | 2017-08-30 | 2017-08-30 | A kind of Full automatic head-space sample injector mechanism and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710759587.8A CN107764919A (en) | 2017-08-30 | 2017-08-30 | A kind of Full automatic head-space sample injector mechanism and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764919A true CN107764919A (en) | 2018-03-06 |
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ID=61265306
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710759587.8A Pending CN107764919A (en) | 2017-08-30 | 2017-08-30 | A kind of Full automatic head-space sample injector mechanism and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806453A (en) * | 2020-01-08 | 2020-02-18 | 常州磐宇仪器有限公司 | Head space bottle transmission system of full-automatic head space device |
| CN114994225A (en) * | 2022-08-05 | 2022-09-02 | 河北华清环境科技集团股份有限公司 | Full-automatic headspace sample injector |
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| CN101321417A (en) * | 2007-06-07 | 2008-12-10 | 台州市巨业装饰材料有限公司 | Hot pressing drum apparatus |
| JP2011145124A (en) * | 2010-01-13 | 2011-07-28 | Shimadzu Corp | Chromatographic apparatus |
| CN102246018A (en) * | 2008-12-10 | 2011-11-16 | 株式会社岛津制作所 | Head space sample introduction device |
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| JP2014219200A (en) * | 2013-04-30 | 2014-11-20 | ジーエルサイエンス株式会社 | Head space sample introduction device and method |
| CN204325498U (en) * | 2014-12-11 | 2015-05-13 | 江苏科技大学 | A kind of integral type rotatable vapour deposition substrate heating device |
| WO2016027330A1 (en) * | 2014-08-20 | 2016-02-25 | 株式会社島津製作所 | Autosampler and analysis device provided with same |
| CN205123538U (en) * | 2015-11-12 | 2016-03-30 | 韩群山 | Electric motor car permanent magnetism has brush motor |
| CN206096050U (en) * | 2016-10-12 | 2017-04-12 | 北京中仪宇盛科技有限公司 | Full -automatic head space sampling device |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321417A (en) * | 2007-06-07 | 2008-12-10 | 台州市巨业装饰材料有限公司 | Hot pressing drum apparatus |
| CN102246018A (en) * | 2008-12-10 | 2011-11-16 | 株式会社岛津制作所 | Head space sample introduction device |
| JP2011145124A (en) * | 2010-01-13 | 2011-07-28 | Shimadzu Corp | Chromatographic apparatus |
| JP2014219200A (en) * | 2013-04-30 | 2014-11-20 | ジーエルサイエンス株式会社 | Head space sample introduction device and method |
| CN203820775U (en) * | 2014-04-25 | 2014-09-10 | 浙江瑞邦药业有限公司 | Fermentation tank |
| CN203854196U (en) * | 2014-05-30 | 2014-10-01 | 温州市通达包装机械厂 | Plastic suction machine |
| WO2016027330A1 (en) * | 2014-08-20 | 2016-02-25 | 株式会社島津製作所 | Autosampler and analysis device provided with same |
| CN204325498U (en) * | 2014-12-11 | 2015-05-13 | 江苏科技大学 | A kind of integral type rotatable vapour deposition substrate heating device |
| CN205123538U (en) * | 2015-11-12 | 2016-03-30 | 韩群山 | Electric motor car permanent magnetism has brush motor |
| CN206096050U (en) * | 2016-10-12 | 2017-04-12 | 北京中仪宇盛科技有限公司 | Full -automatic head space sampling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806453A (en) * | 2020-01-08 | 2020-02-18 | 常州磐宇仪器有限公司 | Head space bottle transmission system of full-automatic head space device |
| CN114994225A (en) * | 2022-08-05 | 2022-09-02 | 河北华清环境科技集团股份有限公司 | Full-automatic headspace sample injector |
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Application publication date: 20180306 |