CN113030013A - Automatic sample feeding and cleaning integrated device for near-infrared spectrometer - Google Patents
Automatic sample feeding and cleaning integrated device for near-infrared spectrometer Download PDFInfo
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- CN113030013A CN113030013A CN202110435649.6A CN202110435649A CN113030013A CN 113030013 A CN113030013 A CN 113030013A CN 202110435649 A CN202110435649 A CN 202110435649A CN 113030013 A CN113030013 A CN 113030013A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 130
- 238000003825 pressing Methods 0.000 claims abstract description 85
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- 230000033001 locomotion Effects 0.000 claims description 8
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- 238000012360 testing method Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
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- 238000002329 infrared spectrum Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/13—Moving of cuvettes or solid samples to or from the investigating station
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR
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- General Health & Medical Sciences (AREA)
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Abstract
The embodiment of the application discloses clean integrated device of autoinjection for near-infrared spectrometer includes: the device comprises a detection table, a sample pressing device, a first conveying sample tube and a second conveying sample tube; the detection table is of a hollow structure, and the top, the left side wall and the right side wall of the detection table are all of open structures; the sample pressing device is arranged at the top of the detection platform; the first conveying sample tube is communicated with the detection table through an open structure on the right side of the detection table; the second conveying sample tube is communicated with the detection platform through an open structure on the left side of the detection platform; the second conveying sample pipe is connected with a fan; a screen is arranged in the second conveying sample pipe; the bottom of the second conveying sample tube is provided with an automatic door capable of being opened and closed; the automatic door is positioned between the screen and the detection table; the central position of the bottom surface of the detection table is provided with quartz glass for the detection of a near-infrared spectrometer. The automatic sample feeding device can realize automatic sample feeding and cleaning, is convenient to use, and effectively solves the problems of inaccurate sample feeding amount, different sample laying thicknesses and difficulty in cleaning.
Description
Technical Field
The application relates to the technical field of sample detection auxiliary devices, in particular to an automatic sample injection and cleaning integrated device for a near-infrared spectrometer.
Background
The near infrared spectrum technology is an analysis technology which is developed rapidly in recent years and has wide application in the tobacco industry. The technology is that a Fourier transform near-infrared spectrometer is used for scanning the near-infrared spectrum of a sample to obtain difference information of hydrogen-containing groups of organic molecules in the sample, and then the information is analyzed and modeled through chemometrics to complete differentiation and identification of the difference.
When a Fourier transform near-infrared spectrometer is used for carrying out spectrum collection on a sample, the sample needs to be placed in a special sample cup for scanning. The sample detectable by the Fourier transform near infrared spectrometer comprises a solid sample and a liquid sample, wherein the spectrum of the solid sample is collected by using a diffuse reflection module, and the solid sample can be in the forms of filiform (such as cut tobacco, packaging paper, thin slice and the like), flake (such as flake tobacco, packaging paper flake, thin slice and the like) and powder (such as tobacco powder, paper powder, thin slice and the like). The continuous sample injection detection of the three forms of samples has the following requirements: firstly, the thickness of a sample needs to reach a certain degree so as to ensure that the light of a detection light source irradiates on the sample to generate diffuse reflection and avoid transmission; secondly, the sample needs to be paved, and the thickness of the center and the edge needs to be basically consistent; thirdly, after one sample is detected, the sample cup needs to be thoroughly cleaned so as to detect the next sample. In actual detection nowadays, the processes of sample feeding and cleaning have many problems. Firstly, the sample is grabbed into the sample cup by an operator, so that light leakage caused by too small sample amount is easily caused, or the thickness of the center and the periphery of the sample is inconsistent because the sample is not paved, and the deviation of detection data is large. Secondly, after each sample is scanned, the quartz glass at the bottom of the sample cup needs to be cleaned manually by a brush or a dust collector, so that the quartz glass at the bottom of the sample cup is difficult to clean completely and is easy to scratch. And the automation degree of the whole detection process is low, the sample introduction and cleaning processes are manually operated, time and labor are wasted, and the detection efficiency is low. Therefore, the invention provides an automatic sample feeding and cleaning integrated device for a near-infrared spectrometer.
Disclosure of Invention
The embodiment of the application provides a clean integrated device of autoinjection for near-infrared spectroscopy for can realize autoinjection and clean, convenient to use has effectively solved the sample volume inaccurate, the sample is laid the problem that thickness differs and clean difficulty.
In view of this, the present application provides an automatic sample feeding and cleaning integrated device for a near-infrared spectrometer, including: the device comprises a detection table, a sample pressing device, a first conveying sample tube and a second conveying sample tube;
the detection table is of a hollow structure, and the top, the left side wall and the right side wall of the detection table are all of open structures;
the sample pressing device is arranged at the top of the detection table and is used for performing sample pressing operation on a sample in the detection table;
the first conveying sample tube is communicated with the detection table through the open structure on the right side of the detection table;
the second sample conveying pipe is communicated with the detection platform through the open structure on the left side of the detection platform;
the second conveying sample pipe is connected with a fan;
a screen is arranged in the second sample conveying pipe;
the bottom of the second conveying sample tube is provided with an automatic door capable of being opened and closed;
the automatic door is positioned between the screen and the detection table;
and the central position of the bottom surface of the detection table is provided with quartz glass for detecting by a near-infrared spectrometer.
Optionally, the method further comprises: a controller;
the controller is respectively electrically connected with the sample pressing device, the fan and the automatic door.
Optionally, the sample pressing device comprises a sample pressing rod, a sample pressing block and a driving motor for driving the sample pressing rod to move in the up-and-down direction;
the sample pressing block is positioned in the detection table, and the outer side wall of the sample pressing block is attached to the inner side wall of the detection table;
the sample pressing block is connected with the detection table in a sliding manner;
the sample pressing rod is positioned above the sample pressing block and is fixedly connected with the sample pressing block;
the driving motor is in driving connection with the sample pressing rod;
the driving motor is electrically connected with the controller.
Optionally, a sensor for detecting whether the sample to be detected is contacted with the lower surface of the sample pressing block is arranged on the lower surface of the sample pressing block;
the sensor is electrically connected with the controller.
Optionally, a rack is arranged on the sample pressing rod;
the driving motor is in driving connection with the sample pressing rod through the rack.
Optionally, a driving device for driving the detection table to perform a fast small-amplitude left-right translational motion or a slow annular translational motion is arranged at the bottom of the detection table;
the driving device is electrically connected with the controller.
Optionally, the thickness of the quartz glass is smaller than that of the bottom surface of the detection table, and the upper surface of the quartz glass is flush with the upper surface of the bottom surface of the detection table.
Optionally, a near-infrared spectrometer is arranged below the detection table;
and a detection port of the near-infrared spectrometer is positioned right below the quartz glass.
Optionally, the detection table is a rectangular detection table;
the detection table is made of metal.
Optionally, the quartz glass is a perfect circle quartz glass.
According to the technical scheme, the embodiment of the application has the following advantages: the integrated device comprises a detection table, a sample pressing device, a first conveying sample pipe and a second conveying sample pipe, wherein the second conveying sample pipe is connected with a fan, negative pressure suction of a sample can be realized through the fan to perform automatic quantitative sample injection, and then sample pressing operation is performed on the sample in the detection table through the sample pressing device to ensure uniform sample laying thickness; after the detection is finished, the sample can be sucked out of the detection table by using the negative pressure again, and the aim of quick and automatic cleaning is fulfilled by using the quick flow of air. This integrated device convenient to use has effectively solved the inaccurate, the sample of input volume and laid the problem that thickness differs and clean difficulty.
Drawings
FIG. 1 is a schematic structural diagram of an automatic sample injection and cleaning integrated device for a near infrared spectrometer in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a testing table according to an embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of the bottom surface of the inspection station in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a sample pressing device in an embodiment of the present application;
FIG. 5 is a schematic diagram of a passive moving track of a detecting port in an embodiment of the present application;
wherein the reference numerals are:
1-detection table, 2-sample pressing device, 3-first conveying sample tube, 4-second conveying sample tube, 5-screen, 6-automatic door, 7-quartz glass, 21-sample pressing block, 22-sample pressing rod and 23-driving motor.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The application provides an embodiment of an automatic sample feeding and cleaning integrated device for a near-infrared spectrometer, and particularly refers to fig. 1 and fig. 2.
An autoinjection cleaning integrated device for near-infrared spectrometer in this embodiment includes: the device comprises a detection table 1, a sample pressing device 2, a first conveying sample tube 3 and a second conveying sample tube 4, wherein the detection table 1 is of a hollow structure, the top, the left side wall and the right side wall of the detection table 1 are all of an open structure, and the sample pressing device 2 is arranged at the top of the detection table 1 and is used for performing sample pressing operation on a sample in the detection table 1; first transport appearance pipe 3 through examine the open structure on platform 1 right side with examine test table 1 intercommunication, second transport appearance pipe 4 through examine test table 1 left open structure with examine test table 1 intercommunication, second transport appearance pipe 4 is connected with the fan, be provided with screen cloth 5 in the second transport appearance pipe 4, second transport appearance pipe 4 bottom is provided with automatically-controlled door 6 that can open and shut, automatically-controlled door 6 is located screen cloth 5 and examines between the test table 1, examine test table 1 bottom surface central point and put and be provided with the quartz glass 7 that is used for near-infrared spectroscopy to detect.
It should be noted that: the integrated device comprises a detection table 1, a sample pressing device 2, a first conveying sample tube 3 and a second conveying sample tube 4, wherein the second conveying sample tube 4 is connected with a fan, negative pressure suction of a sample can be realized through the fan to perform automatic quantitative sample injection, and then sample pressing operation is performed on the sample in the detection table 1 through the sample pressing device 2 to ensure uniform sample laying thickness; after the sample is detected, the sample can be sucked out of the detection table 1 by using negative pressure again (after the sucked sample is intercepted by the screen 5, the sample can be recovered by the automatic door 6), and the aim of quick and automatic cleaning is fulfilled by using quick air flow. This integrated device convenient to use has effectively solved the inaccurate, the sample of input volume and laid the problem that thickness differs and clean difficulty.
The above is a first embodiment of an automatic sample feeding and cleaning integrated device for a near-infrared spectrometer provided in the embodiments of the present application, and the following is a second embodiment of an automatic sample feeding and cleaning integrated device for a near-infrared spectrometer provided in the embodiments of the present application, specifically referring to fig. 1 to fig. 5.
An autoinjection cleaning integrated device for near-infrared spectrometer in this embodiment includes: the device comprises a detection table 1, a sample pressing device 2, a first conveying sample tube 3 and a second conveying sample tube 4, wherein the detection table 1 is of a hollow structure, the top, the left side wall and the right side wall of the detection table 1 are all of an open structure, and the sample pressing device 2 is arranged at the top of the detection table 1 and is used for performing sample pressing operation on a sample in the detection table 1; one end of the first sample conveying pipe 3 is communicated with the detection platform 1 through an open structure on the right side of the detection platform 1, and the other end of the first sample conveying pipe can extend into a sample to be detected for sample absorption; one end of the second conveying sample tube 4 is communicated with the detection table 1 through an open structure on the left side of the detection table 1, the other end of the second conveying sample tube is connected with a fan, negative pressure in the device can be formed or disappears by opening or closing a fan switch, and the wind power of the fan is adjustable.
The second conveying sample tube 4 is internally provided with a screen 5, specifically, the screen 5 is arranged at the middle position (about 10cm away from the detection platform 1) of the second conveying sample tube 4, the shape of the screen is rectangular, and the length and the width of the screen 5 are respectively equal to the length and the width of the cross section of the second conveying sample tube 4. It can be understood that the screen 5 can be replaced, the apertures on the same screen 5 are the same, the apertures between different screens 5 are different, and the screen 5 can be selectively replaced according to the form of the sample to be measured. The purpose of the setting of the screen 5 is to intercept the samples sucked by negative pressure, and the silk-shaped and chip-shaped samples to be detected are matched with the screen 5 with larger aperture, and the terminal samples to be detected are matched with the screen 5 with smaller aperture.
The bottom of the second sample conveying pipe 4 is provided with an automatic door 6 which can be opened and closed, the automatic door 6 is positioned between the screen 5 and the detection platform 1, and a recovery bucket can be arranged below the automatic door 6 to recover samples. The central position of the bottom surface of the detection table 1 is provided with quartz glass 7 for the detection of a near infrared spectrometer.
In this embodiment, the first transporting sample tube 3 and the second transporting sample tube 4 are both smooth metal hollow structures, the cross section thereof is rectangular, and the length and width of the cross section are respectively equal to the width and height of the detecting table 1.
Further comprising: and the controller is electrically connected with the sample pressing device 2, the fan and the automatic door 6 respectively.
As shown in fig. 4, the sample pressing device 2 includes a sample pressing rod 22, a sample pressing block 21 and a driving motor 23 for driving the sample pressing rod 22 to move in the up-down direction, the sample pressing block 21 is located in the detection platform 1, and the outer side wall of the sample pressing block 21 is attached to the inner side wall of the detection platform 1; the sample pressing block 21 is connected with the detection table 1 in a sliding mode, the sample pressing rod 22 is located above the sample pressing block 21, and the sample pressing rod 22 is fixedly connected with the sample pressing block 21; the driving motor 23 is connected with the sample pressing rod 22 in a driving mode, and the driving motor 23 is electrically connected with the controller.
It is understood that, in order to prevent the samples to be measured on both sides from floating to the top of the sample pad 21 during the sample pressing, the sample pad 21 should have a certain thickness. In this embodiment, the sample block 21 is a metal sample block 21 having a square bottom surface, a thickness of 3 to 5cm, and a weight of 0.8 to 1.3kg, and can be pressed down.
The lower surface of the sample pressing block 21 is provided with a sensor for detecting whether the sample to be detected is contacted, and the sensor is electrically connected with the controller.
The sample pressing rod 22 is provided with a rack, the driving motor 23 is connected with the sample pressing rod 22 through the rack in a driving mode, when the sample pressing device is used, the driving motor 23 can drive the rack to move, and the rack can push the sample pressing block 21 to do downward pressing or upward lifting movement.
The bottom of the detection table 1 is provided with a driving device for driving the detection table 1 to perform rapid small-amplitude left-right translational motion or slow annular translational motion, and the driving device is electrically connected with the controller. Specifically, the bottom of the detection table 1 is provided with a groove, and the driving device is connected with the detection table 1 through the groove so as to drive the detection table 1 to move.
It can be understood that the rapid small-amplitude left-right translation is to make the thickness of the cut tobacco in the cavity of the detection table 1 more uniform, and the slow annular translation is to make the detection port of the near-infrared spectrometer passively scan the sample to be detected in a surrounding manner (as shown in fig. 5) to obtain more comprehensive spectral information.
As shown in FIG. 3, the quartz glass 7 is embedded in the bottom of the detection table 1, the thickness of the quartz glass 7 is smaller than that of the bottom surface of the detection table 1, and the upper surface of the quartz glass 7 is flush with the upper surface of the bottom surface of the detection table 1. Specifically, the thickness of the quartz glass 7 is 0.5 to 1mm thinner than the thickness of the bottom surface of the detection table 1.
It can be understood that the upper surface of the quartz glass 7 is flush with the upper surface of the bottom surface of the detection table 1, so that the quartz glass 7 is more convenient to clean, and the thickness of the quartz glass 7 is smaller than that of the bottom surface of the detection table 1, so that the quartz glass 7 can be suspended above the detection port of the near-infrared spectrometer, and the quartz glass 7 is prevented from generating contact friction with the glass of the detection port.
A near-infrared spectrometer is arranged below the detection table 1, and a detection port of the near-infrared spectrometer is positioned right below the quartz glass 7.
In this embodiment, the detection platform 1 is made of metal, preferably, the detection platform 1 is made of aluminum, the detection platform 1 is a smooth rectangular detection platform 1, the bottom surface of the detection platform 1 is square, a right circular hollow structure for installing the quartz glass 7 is arranged at the center position of the bottom surface, the quartz glass 7 is a right circular quartz glass 7, and the side surface of the right circular quartz glass 7 is tightly embedded with the right circular hollow structure on the bottom surface.
The gradual realization of all automatic operations of the integrated device can be controlled by setting time. In specific implementation, the first sample conveying pipe 3 is inserted into a sample storage bag or a sample storage bottle containing a sample to be detected, wherein the sample to be detected can be in a filamentous shape (such as cut tobacco, packaging paper shreds, thin slices and the like), a flake shape (such as flake tobacco, packaging paper shreds, thin slice fragments and the like) and a powder shape (such as tobacco powder, paper powder, thin slice powder and the like). At this time, the automatic door 6 is closed, and the first transporting sample tube 3, the inner chamber of the test table 1, and the second transporting sample tube 4 form a closed tubular space. The sample pressing device 2 is still right above the detection table 1. And starting a fan to enable negative pressure to be formed in a tubular space formed by the first conveying sample tube 3, the inner cavity of the detection platform 1 and the second conveying sample tube 4, so that the sample is sucked into the tubular space, setting proper suction time, automatically closing the fan, and enabling the negative pressure to disappear, and enabling the sample to be uniformly distributed in a certain volume in the tubular space of the first conveying sample tube 3, the inner cavity of the detection platform 1 and the second conveying sample tube 4. In order to further ensure that the sample can be in a state of consistent thickness, the detection table 1 is driven by a driving device below the detection table to perform rapid small-amplitude left-right translation movement for 6-8 times. Then, a driving motor 23 above the sample pressing rod 22 drives a rack on the sample pressing rod 22 to move, the rack drives the sample pressing rod 22 to enable the metal sample pressing block 21 at the top of the detection platform 1 to be pressed downwards at a constant speed, the sample pressing block 21 is provided with a sensor, when the sensor senses that the sensor is in contact with a sample to be detected, a signal is sent to a controller, the controller controls the driving motor 23 to stop moving, and at the moment, the metal sample pressing block 21 presses the sample to be detected by means of self gravity. Then, the inspection stage 1 starts to perform slow translation of the circular trajectory. The translational track can make the round detection port of the near-infrared spectrometer passively wind under the quartz glass 7 of the detection platform 1, so as to achieve the purpose of uniformly scanning the sample. After the detection is finished, the sample pressing device 2 drives the metal sample pressing block 21 to move vertically upwards, so that the metal sample pressing block returns to the top of the detection table 1. Then, the automatic door 6 on the second conveyance sample tube 4 is opened, and the sample between the screen 5 and the test stage 1 falls into the collection bucket. And finally, inserting the first conveying sample tube 3 into one end of a sample storage bag or a sample storage bottle to be extracted, closing the automatic door 6, opening the fan to form negative pressure, enabling the sample in the inner cavity of the detection platform 1 and the first conveying sample tube 3 to move towards the screen 5 of the second conveying sample tube 4, after the sample touches the screen 5, opening the automatic door 6, closing the fan, dropping the sample between the screen 5 and the detection platform 1 into the recovery barrel, and repeating the step for multiple times to clean the first conveying sample tube 3, the sample in the detection platform 1 and the second conveying sample tube 4 and the fragments remained on the quartz glass 7 on the bottom surface of the detection platform 1 into the recovery barrel. Based on the consideration of cleanliness, the wind power of the fan during cleaning can be larger than that during sample introduction. And after the cleaning is finished, the sample introduction, the detection and the cleaning of the next sample can be carried out.
The integrated device integrates sample introduction and cleaning, and has the advantages of high automation degree, standard sample introduction amount, high cleaning cleanliness, simple and quick operation and the like.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. The utility model provides a clean integrated device of autoinjection for near-infrared spectrometer which characterized in that includes: the device comprises a detection table, a sample pressing device, a first conveying sample tube and a second conveying sample tube;
the detection table is of a hollow structure, and the top, the left side wall and the right side wall of the detection table are all of open structures;
the sample pressing device is arranged at the top of the detection table and is used for performing sample pressing operation on a sample in the detection table;
the first conveying sample tube is communicated with the detection table through the open structure on the right side of the detection table;
the second sample conveying pipe is communicated with the detection platform through the open structure on the left side of the detection platform;
the second conveying sample pipe is connected with a fan;
a screen is arranged in the second sample conveying pipe;
the bottom of the second conveying sample tube is provided with an automatic door capable of being opened and closed;
the automatic door is positioned between the screen and the detection table;
and the central position of the bottom surface of the detection table is provided with quartz glass for detecting by a near-infrared spectrometer.
2. The integrated automatic sample introduction and cleaning device for a near infrared spectrometer as claimed in claim 1, further comprising: a controller;
the controller is respectively electrically connected with the sample pressing device, the fan and the automatic door.
3. The automatic sample feeding and cleaning integrated device for the near-infrared spectrometer as claimed in claim 2, wherein the sample pressing device comprises a sample pressing rod, a sample pressing block and a driving motor for driving the sample pressing rod to move in the up-and-down direction;
the sample pressing block is positioned in the detection table, and the outer side wall of the sample pressing block is attached to the inner side wall of the detection table;
the sample pressing block is connected with the detection table in a sliding manner;
the sample pressing rod is positioned above the sample pressing block and is fixedly connected with the sample pressing block;
the driving motor is in driving connection with the sample pressing rod;
the driving motor is electrically connected with the controller.
4. The automatic sample feeding and cleaning integrated device for the near-infrared spectrometer as claimed in claim 3, wherein a sensor for detecting whether a sample to be detected is contacted is arranged on the lower surface of the sample pressing block;
the sensor is electrically connected with the controller.
5. The integrated automatic sample feeding and cleaning device for the near infrared spectrometer as claimed in claim 3, wherein a rack is arranged on the sample pressing rod;
the driving motor is in driving connection with the sample pressing rod through the rack.
6. The automatic sample feeding and cleaning integrated device for the near-infrared spectrometer as claimed in claim 2, wherein a driving device for driving the detection table to perform a fast small-amplitude left-right translational motion or a slow circular translational motion is arranged at the bottom of the detection table;
the driving device is electrically connected with the controller.
7. The integrated automatic sample feeding and cleaning device for a near infrared spectrometer as claimed in claim 1, wherein the thickness of the quartz glass is smaller than the thickness of the bottom surface of the detection table, and the upper surface of the quartz glass is flush with the upper surface of the bottom surface of the detection table.
8. The automatic sample feeding and cleaning integrated device for the near-infrared spectrometer as claimed in claim 1, wherein the near-infrared spectrometer is arranged below the detection table;
and a detection port of the near-infrared spectrometer is positioned right below the quartz glass.
9. The automatic sample feeding and cleaning integrated device for the near infrared spectrometer as claimed in claim 1, wherein the detection table is a rectangular detection table;
the detection table is made of metal.
10. The integrated automatic sample feeding and cleaning device for a near infrared spectrometer as claimed in claim 1, wherein the quartz glass is a right circular quartz glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435649.6A CN113030013A (en) | 2021-04-22 | 2021-04-22 | Automatic sample feeding and cleaning integrated device for near-infrared spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435649.6A CN113030013A (en) | 2021-04-22 | 2021-04-22 | Automatic sample feeding and cleaning integrated device for near-infrared spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113030013A true CN113030013A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110435649.6A Pending CN113030013A (en) | 2021-04-22 | 2021-04-22 | Automatic sample feeding and cleaning integrated device for near-infrared spectrometer |
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| Country | Link |
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| CN (1) | CN113030013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023010619A1 (en) * | 2021-08-05 | 2023-02-09 | 长鑫存储技术有限公司 | Device detection method and system |
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2021
- 2021-04-22 CN CN202110435649.6A patent/CN113030013A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023010619A1 (en) * | 2021-08-05 | 2023-02-09 | 长鑫存储技术有限公司 | Device detection method and system |
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