CN110907244B - West lake Longjing authenticity identification method capable of guaranteeing reliability of detection result - Google Patents
West lake Longjing authenticity identification method capable of guaranteeing reliability of detection result Download PDFInfo
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- CN110907244B CN110907244B CN201911226165.XA CN201911226165A CN110907244B CN 110907244 B CN110907244 B CN 110907244B CN 201911226165 A CN201911226165 A CN 201911226165A CN 110907244 B CN110907244 B CN 110907244B
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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Abstract
The invention discloses a method for identifying the truth of a West lake Longjing network, which ensures the reliability of a detection result and comprises the following steps: a. processing a tea sample before spectrum collection; b. collecting a near infrared spectrum of a tea sample; c. establishing dependent variables and independent variables of the west lake Longjing truth samples aiming at the partial least square method model; d. establishing a method for identifying the authenticity of the West lake Longjing tea; e. identifying the truth of the West lake Longjing of the unknown sample; tealeaves is by broken back in interior bucket, and tealeaves rotates along with interior bucket, throws away out in the tealeaves after the breakage from the through-hole under the centrifugal force effect, avoids tealeaves after the breakage and not being mixed together by broken tealeaves, reduces the resistance that receives when the cutter rotates to make the faster rotation of cutter promote the crushing effect to tealeaves, alleviate driving motor burden simultaneously, avoid motor load to lead to the fact motor damage, extension motor life too big.
Description
Technical Field
The invention belongs to the technical field of tea traceability, and particularly relates to a method for identifying the truth of a West lake Longjing tea, which can ensure the reliability of a detection result.
Background
Among the ten traditional famous teas in China, 8 famous teas such as Longjing tea, Wuyi rock tea, Huangshan Maofeng, Dongting Biluochun, Anxi Tieguanyin, Xinyang Maojian tea, Qimen black tea and Duyun Maojian tea pass the product protection of the original production region and the product protection of geographical signs. West lake Longjing has been in history for more than a thousand years so far, and is the first of ten famous teas in China. In 2001, the national quality control bureau formally protects the original production region of longjing tea, and defines longjing tea as: the name of the 'Longjing' place is used for defining 3 production areas of a west lake production area, a money pond production area and a Yunzhou production area, fresh tea leaves produced in a tea garden identified in the range of the original production area are used, and green tea processed according to the standard of the 'Longjing tea' is produced in the original production area. Meanwhile, only the Longjing tea produced by using the fresh tea leaves in Hangzhou West lake production area is specified to be called 'West lake Longjing tea'. The protection of geographical sign of West lake Longjing is further improved by the geographical sign product protection regulation which is implemented at 7/15 of 2005. However, the influence of counterfeit and shoddy products on the West lake Longjing is very serious at present, and because the West lake Longjing has good quality and high selling price, the phenomenon that tea leaves produced in places other than the original places of the West lake Longjing serves as the West lake Longjing tea for selling is very common in various tea markets with good quality and good quality. However, in the prior art, the shape, taste and aroma of the tea leaves in west lake Longjing tea and other flat tea prepared by the Longjing tea processing technology in other areas are difficult to distinguish. Therefore, in view of the current market, a rapid and reliable method for identifying the truth of the West lake Longjing is needed, and the method plays an important role in effectively fighting against counterfeit and faked products, keeping the market order and improving the position of the West lake Longjing.
When doing the detection to tealeaves, need be earlier to tealeaves the broken handle, tealeaves generally arranges the traditional chinese medicine breaker in and carries out the breakage, and the space in the tealeaves breaker is less, and tealeaves after the breakage still mixes together with the tealeaves that is not broken, influences the crushing effect of not by broken tealeaves, has increased the resistance that the motor received, influences motor life.
Disclosure of Invention
The invention provides a rapid and reliable method for identifying the truth of the West lake Longjing to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for identifying the authenticity of the West lake Longjing which ensures the reliability of the detection result comprises the following steps:
a. processing before spectrum collection of a tea sample: crushing a tea sample in a traditional Chinese medicine crusher, sieving the crushed powder with a 40-mesh sieve, and accurately weighing 10g of the powder as a near-infrared analysis material;
b. collecting a tea sample near infrared spectrum: the acquisition of the near infrared spectrum of the tea sample is carried out on an IFS28/N near infrared spectrometer, and random software comprises the following steps: opus Quant2, wherein the acquisition mode is absorption spectrum, and the spectrum is the average value of 64 scans;
c. the method comprises the following steps of (1) establishing dependent variables and independent variables of a west lake Longjing truth sample aiming at a partial least square method model: respectively assigning a dependent variable 'Y' to different samples, wherein the dependent variable 'Y' defined by the samples of the West lake Longjing has a value of 1, the dependent variable 'Y' of the samples of the non-West lake Longjing has a value of '-1', and the spectral data is used as an independent variable 'X';
d. the establishment of the west lake Longjing authenticity identification method comprises the following steps: randomly selecting 200 west lake Longjing samples and 100 other flat tea samples as training set samples, adopting internal cross validation, establishing an identification model of the west lake Longjing by using an original spectrum and a partial least square method, and then carrying out authenticity judgment by taking 0 as a middle value, wherein the non-west lake Longjing is determined when a calculated value of the model is less than 0, and the west lake Longjing is determined when the calculated value is more than 0;
e. and (3) identifying the truth of the West lake Longjing of the unknown sample: respectively processing and spectrum collecting unknown samples according to the steps a and b, analyzing the spectrum by using the partial least square method model established in the step d to obtain a predicted value, and carrying out authenticity judgment by using 0 as an intermediate value, wherein the non-West lake dragon well is used when the calculated value of the model is less than 0, and the authentic West lake dragon well is used when the calculated value is more than 0;
the traditional Chinese medicine pulverizer in the step a comprises an outer shell, an inner barrel arranged in the outer shell and a cover plate arranged at the top of the outer shell, wherein a first movable groove is formed in the inner wall of the outer shell, the first movable groove is rotatably connected with a supporting block, a base is arranged at the bottom of the inner barrel, a first groove matched with the supporting block is formed in the base, a first connecting rod is arranged at the bottom of the inner barrel, a first limiting plate is arranged at the bottom of the first connecting rod, and a first movable cavity matched with the first limiting plate is formed in the base; the top of the cover plate is provided with a driving motor, the bottom of the cover plate is provided with an installation seat, the installation seat is provided with a connecting shaft, the connecting shaft is provided with a plurality of cutters, the bottom of the cover plate is provided with a transmission ring matched with the inner barrel, and the side wall of the inner barrel is provided with a plurality of through holes; after tea samples are collected, the cover plate is opened, the tea samples are placed in the inner barrel, the cover plate is covered on the outer shell, the driving motor drives the connecting shaft to rotate, the connecting shaft drives the cutter and the transmission ring to rotate, the transmission ring is in contact with the inner barrel to drive the inner barrel to rotate, the cutter is in contact with the tea to crush the tea, the crushed tea rotates along with the inner barrel to throw the tea out of the through hole, and the tea falls into the outer shell; after the tea is broken, the cover plate is opened, the inner barrel is taken out of the outer shell, the outer shell is poured, the tea in the outer shell is taken out, and the tea sample is collected.
After the tea leaves are crushed in the inner barrel, the tea leaves rotate along with the inner barrel, and the crushed tea leaves are thrown out from the through holes under the action of centrifugal force, so that the crushed tea leaves and the tea leaves which are not crushed are prevented from being mixed together, the resistance force on the cutter during rotation is reduced, the crushing effect on the tea leaves is improved by the cutter through faster rotation, meanwhile, the load of a driving motor is reduced, the damage to the motor caused by overlarge motor load is avoided, and the service life of the motor is prolonged; the connecting shaft and the inner barrel rotate simultaneously, so that the contact effect of the cutter and the tea is improved, the tea is better contacted with the cutter, and the tea crushing effect is improved; after the tea leaves are crushed, the tea leaves in the inner barrel and the outer shell can be poured out conveniently by taking the inner barrel out, the tea leaves in the inner barrel and the outer shell are collected, the tea leaf waste is reduced, meanwhile, the inner barrel and the outer shell can be cleaned conveniently, and the influence on the use of the crusher caused by the residue of tea leaf dust in the crusher is avoided; under the effect of the first limiting plate, the inner barrel can be rotatably connected to the base, the inner barrel is stably arranged in the outer shell, meanwhile, the rotary motion of the inner barrel is guaranteed, and the matching effect of the inner barrel and the outer shell is guaranteed.
The scanning area of the near-infrared spectrometer in the step b is 10000-.
The near infrared spectrum in step b has 1685 data points, and the room temperature is controlled at 20-25 ℃ during collection.
And c, processing the non-West lake Longjing sample in the step c by adopting a Longjing tea processing technology.
A second movable groove is formed in the side wall of the shell, a through groove is formed in the inner wall of the second movable groove, the through groove is communicated with the first movable groove, a push block is arranged in the second movable groove, and a first lug matched with the support block is arranged on the side wall of the push block; a first through cavity is formed in the first bump, a first push rod penetrates through the first through cavity, a second movable cavity is formed in the inner wall of the first through cavity, and a second limiting plate matched with the second movable cavity is arranged on the first push rod; the pushing block is also provided with a second through cavity, the second through cavity is arranged above the first through cavity, a second push rod penetrates through the second through cavity, the inner wall of the second through cavity is provided with a third movable cavity, and the second push rod is provided with a third limiting plate matched with the third movable cavity; after the tea leaves are crushed, taking out the inner barrel from the outer shell, pushing the push block downwards, driving the first lug to move downwards by the push block, enabling the first lug to be in contact with one end of the supporting block, pushing the supporting block to rotate around a connecting point, enabling the supporting block to rotate to an inclined state, pushing the first push rod into the outer shell, pushing the supporting block by the first push rod to continue rotating, enabling the supporting block to rotate into the first movable groove, and pouring the outer shell to pour out the tea leaves; when the inner barrel is arranged in the outer shell, a second push rod is pushed into the outer shell, the second push rod pushes the supporting block to rotate around the connecting point, the inner barrel is arranged in the outer shell after the supporting block rotates to the horizontal position, and the base is arranged on the supporting block to complete the installation of the inner barrel; under the mutual cooperation of the push block and the first convex block, the supporting block is pushed to rotate in the first movable groove, the supporting block can only rotate to an inclined state under the action of the first convex block, the supporting block is continuously turned over under the action of the first push rod, the whole supporting block can be turned into the first movable groove, the first movable groove is sealed by the supporting block, the situation that the broken powder enters the first movable groove when tea leaves are poured out is avoided, meanwhile, the supporting block is prevented from blocking the pouring-out operation of the tea leaves, and the waste of the tea leaves is reduced; when the supporting block is required to be turned down, the second push rod is pushed, the top of the supporting block is pushed to turn over downwards by the second push rod, the supporting block is pushed to an inclined state by the second push rod piece, the supporting block turns over downwards under the action of gravity, the supporting block is turned to a horizontal state, the bottom surface of the supporting block is in contact with the bottom surface of the first movable groove, supporting force is provided for the supporting block, the base is stably arranged on the supporting block, and the matching effect of the inner barrel and the outer shell is improved.
The mounting seat is provided with a mounting groove, the connecting shaft is inserted into the mounting groove, the bottom of the mounting seat is provided with a connecting plate, a third through cavity is arranged on the connecting plate, a fixing plate penetrates through the third through cavity, the inner wall of the third through cavity is provided with a sliding block, the side wall of the fixing plate is provided with a first sliding groove matched with the first sliding block, the first sliding block is provided with a first limiting spring, and the connecting shaft is provided with a fixing groove matched with the fixing plate; a fourth movable cavity matched with the fixed groove is arranged on the connecting shaft, a first rotary disc is arranged in the fourth movable cavity, a second convex block is arranged on the first rotary disc, and a push block matched with the second convex block is arranged in the fourth movable cavity; when the cutter is maintained, the first rotary disc is rotated, the second lug on the first rotary disc is contacted with the push block, the second lug pushes the push block to move towards the outer side of the fixed groove, the push block pushes the fixed plate to be separated from the fixed groove, the connecting shaft is pulled outwards to pull the connecting shaft out of the mounting groove, and the cutter on the connecting shaft is maintained; after the cutter is maintained, the fixed plate is opposite to the fixed groove, the connecting shaft is directly inserted into the mounting groove, and the fixed plate is inserted into the fixed groove to complete the mounting of the connecting shaft; under the mutual matching of the fixing plate and the fixing groove, the connecting shaft is fixed and prevented from rotating, the connecting shaft is fixed in the mounting groove, and the connecting effect of the connecting shaft and the mounting seat is improved; the connecting shaft is fixed in the mounting groove in a mode of directly pushing the connecting shaft into the mounting groove, so that the fixing plate is automatically matched with the fixing groove, the mounting difficulty of the connecting shaft is reduced, and the connecting shaft is conveniently connected with the mounting seat; the second lug is pushed to move by the rotation of the first rotary disc, so that the fixed plate is separated from the fixed groove, the connecting shaft is more convenient to disassemble and assemble, and the maintenance cost of the pulverizer is reduced.
The invention has the following advantages: through the PLS analysis method of near infrared technology and chemometrics, the method for respectively defining dependent variables for the West lake Longjing sample and the non-West lake Longjing sample of a calibration collection sample establishes a recognition model for the truth recognition of the West lake Longjing, and can realize the reliable recognition of the truth of the West lake Longjing through a model prediction value, thereby providing a reliable method for the truth recognition of the West lake Longjing in the market, make rubbing crusher possess longer life-span, reduce the required cost among the testing process, not stayed interior bucket by broken tealeaves, because partial tealeaves has been discharged from interior bucket, interior relative tealeaves space increase of bucket makes tealeaves throw at will in interior bucket, promotes the cooperation effect of tealeaves and cutter to break into required size with tealeaves, guarantee the accuracy to element determination in the tealeaves, so that promote the accuracy that the tealeaves true and false was judged.
Drawings
Fig. 1 is a schematic view showing a structure of a drug pulverizer of the present invention.
Fig. 2 is a first sectional view of the drug crusher of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is an enlarged view of fig. 2 at B.
Fig. 5 is an enlarged view of fig. 2 at C.
Fig. 6 is an enlarged view of fig. 2 at D.
Fig. 7 is an enlarged view of fig. 2 at E.
Fig. 8 is a second sectional view of the drug crusher of the present invention.
Fig. 9 is an enlarged view of fig. 8 at F.
Fig. 10 is a third sectional view of the drug crusher of the present invention.
Fig. 11 is an enlarged view at G in fig. 10.
Fig. 12 is a fourth sectional view schematically showing the drug crusher of the present invention.
Fig. 13 is an enlarged view of fig. 12 at H.
Fig. 14 is a fifth sectional view of the medicine crusher of the present invention.
Fig. 15 is an enlarged view at I in fig. 14.
Fig. 16 is a sixth sectional view of the drug crusher of the present invention.
Detailed Description
A method for identifying the authenticity of the West lake Longjing which ensures the reliability of the detection result comprises the following steps: a. processing before spectrum collection of a tea sample: crushing a tea sample in a traditional Chinese medicine crusher, sieving the crushed powder with a 40-mesh sieve, and accurately weighing 10g of the powder as a near-infrared analysis material; b. collecting a tea sample near infrared spectrum: the acquisition of the near infrared spectrum of the tea sample is carried out on an IFS28/N near infrared spectrometer, and random software comprises the following steps: opus Quant2, wherein the acquisition mode is absorption spectrum, and the spectrum is the average value of 64 scans; c. the method comprises the following steps of (1) establishing dependent variables and independent variables of a west lake Longjing truth sample aiming at a partial least square method model: respectively assigning a dependent variable 'Y' to different samples, wherein the dependent variable 'Y' defined by the samples of the West lake Longjing has a value of 1, the dependent variable 'Y' of the samples of the non-West lake Longjing has a value of '-1', and the spectral data is used as an independent variable 'X'; d. the establishment of the west lake Longjing authenticity identification method comprises the following steps: randomly selecting 200 west lake Longjing samples and 100 other flat tea samples as training set samples, adopting internal cross validation, establishing an identification model of the west lake Longjing by using an original spectrum and a partial least square method, and then carrying out authenticity judgment by taking 0 as a middle value, wherein the non-west lake Longjing is determined when a calculated value of the model is less than 0, and the west lake Longjing is determined when the calculated value is more than 0; e. and (3) identifying the truth of the West lake Longjing of the unknown sample: respectively processing and spectrum collecting unknown samples according to the steps a and b, analyzing the spectrum by using the partial least square method model established in the step d to obtain a predicted value, and carrying out authenticity judgment by using 0 as an intermediate value, wherein the non-West lake dragon well is used when the calculated value of the model is less than 0, and the authentic West lake dragon well is used when the calculated value is more than 0; the scanning area of the near-infrared spectrometer in the step b is 10000-; the number of data points of the near infrared spectrum in the step b is 1685, and the room temperature is controlled to be 20-25 ℃ during collection; and c, processing the non-West lake Longjing sample in the step c by adopting a Longjing tea processing technology.
As shown in fig. 1 to 16, the traditional Chinese medicine pulverizer in step a includes an outer casing 1, an inner barrel 3 disposed in the outer casing 1, and a cover plate 2 disposed on the top of the outer casing 1, wherein a first movable groove is disposed on the inner wall of the outer casing 1, the first movable groove is rotatably connected with a supporting block 12, a base 32 is disposed at the bottom of the inner barrel 3, a first groove matched with the supporting block 12 is disposed on the base 32, a first connecting rod is disposed at the bottom of the inner barrel 3, a first limiting plate 33 is disposed at the bottom of the first connecting rod, and a first movable cavity matched with the first limiting plate 33 is disposed on the base 32; the top of the cover plate 2 is provided with a driving motor 23, the bottom of the cover plate 2 is provided with a mounting seat 24, the mounting seat 24 is provided with a connecting shaft 4, the connecting shaft 4 is provided with a plurality of cutters 41, the bottom of the cover plate 2 is provided with a driving ring 27 matched with the inner barrel 3, and the side wall of the inner barrel 3 is provided with a plurality of through holes; after tea samples are collected, the cover plate 2 is opened, the tea samples are placed in the inner barrel 3, the cover plate 2 is covered on the outer shell 1, the driving motor 23 drives the connecting shaft 4 to rotate, the connecting shaft 4 drives the cutter 41 and the driving ring 27 to rotate, the driving ring 27 is in contact with the inner barrel 3 to drive the inner barrel 3 to rotate, the cutter 41 is in contact with the tea to crush the tea, the crushed tea rotates along with the inner barrel 3 to throw the tea out of the through hole, and the tea falls into the outer shell 1; after the tea is broken, the cover plate 2 is opened, the inner barrel 3 is taken out from the outer shell 1, the outer shell 1 is poured, the tea in the outer shell 1 is taken out, and a tea sample is collected.
After the tea leaves are crushed in the inner barrel, the tea leaves rotate along with the inner barrel, and the crushed tea leaves are thrown out from the through holes under the action of centrifugal force, so that the crushed tea leaves and the tea leaves which are not crushed are prevented from being mixed together, the resistance force on the cutter during rotation is reduced, the crushing effect on the tea leaves is improved by the cutter through faster rotation, meanwhile, the load of a driving motor is reduced, the damage to the motor caused by overlarge motor load is avoided, and the service life of the motor is prolonged; the connecting shaft and the inner barrel rotate simultaneously, so that the contact effect of the cutter and the tea is improved, the tea is better contacted with the cutter, and the tea crushing effect is improved; after the tea leaves are crushed, the tea leaves in the inner barrel and the outer shell can be poured out conveniently by taking the inner barrel out, the tea leaves in the inner barrel and the outer shell are collected, the tea leaf waste is reduced, meanwhile, the inner barrel and the outer shell can be cleaned conveniently, and the influence on the use of the crusher caused by the residue of tea leaf dust in the crusher is avoided; under the effect of the first limiting plate, the inner barrel can be rotatably connected to the base, the inner barrel is stably arranged in the outer shell, meanwhile, the rotary motion of the inner barrel is guaranteed, and the matching effect of the inner barrel and the outer shell is guaranteed.
The bottom of the cover plate is provided with a second groove, the mounting seat is provided with a second groove, the output shaft of the driving motor penetrates through the second groove, the output shaft of the driving motor is provided with a first connecting groove, the mounting seat is provided with a limiting rod 243 matched with the first connecting groove, the output shaft of the driving motor is provided with a thread groove, and the mounting seat is fixed on the output shaft of the driving motor through a screw 25; when the mounting base is mounted, the limiting rod is aligned with the first connecting groove and inserted into the first connecting groove, the mounting base and the output shaft of the driving motor form rotation stopping fit, the mounting base is pressed to enable the mounting base to be incapable of rotating, the screw is rotated into the threaded groove, the mounting base is fixed on the output shaft of the driving motor, and mounting of the mounting base is completed.
A transmission cavity communicated with the second groove is arranged on the cover plate, a transmission wheel 26 in transmission fit with the mounting seat is arranged in the transmission cavity, and the transmission wheel is in transmission fit with the transmission ring; when the apron lid was on the shells body, the transmission ring pressed on interior bucket, increased the contact effect of transmission ring and interior bucket, and driving motor drive mount pad drives the transmission ring and rotates when rotating to make interior bucket take place to rotate, make connecting axle rotation direction and transmission ring rotation opposite direction under the drive wheel effect, thereby make interior bucket and connecting axle rotate with opposite direction, increase the contact effect of tealeaves and cutter, promote the crushing effect of tealeaves.
The side wall of the inner barrel is provided with a cavity, a surrounding plate 31 penetrates through the cavity, the surrounding plate is provided with a plurality of sieve holes matched with the through holes, the side wall of the surrounding plate is provided with a third bump, the inner wall of the cavity is provided with a third groove matched with the third bump, and under the mutual matching of the third bump and the third groove, the surrounding plate is positioned, so that the sieve holes are matched with the through holes, the crushed tea is filtered, the tea with the size is thrown out from the inner barrel, and the phenomenon that the tea is completely gathered in the inner barrel to cause overlarge resistance to the rotation of the cutter is avoided; the coamings with different sieve pore diameters can be selected according to the size of the needed crushed particles, so that the products after crushing can be primarily screened in the crushing process.
A plurality of second connecting grooves are formed in the connecting shaft, a third connecting rod is arranged at one end of the cutting knife, a third connecting rod matched with the second connecting grooves is arranged at one end of the third connecting rod, and the third connecting rod is connected with the second connecting grooves through threads; the cutter can be conveniently disassembled and assembled under the thread matching, and the maintenance difficulty of the cutter is reduced.
The cover plate is provided with an equipment cavity 21 matched with the driving motor, the top of the equipment cavity is provided with a top cover 22, the top cover is provided with a plurality of air holes, and the top cover is connected with the equipment cavity through threads; the driving motor is arranged in the equipment cavity, and the vent hole plays a role in heat dissipation for the driving motor, so that the driving motor is prevented from being damaged due to overheating; when maintaining the driving motor seat, go out the top cap from the equipment chamber, can directly take out driving motor from the equipment intracavity to do the maintenance to driving motor, reduce driving motor maintenance cost.
A second movable groove is formed in the side wall of the outer shell 1, a through groove is formed in the inner wall of the second movable groove, the through groove is communicated with the first movable groove, a first push block 11 is arranged in the second movable groove, and a first bump 111 matched with the support block 12 is arranged on the side wall of the first push block 11; a first through cavity is formed in the first bump 111, a first push rod 112 penetrates through the first through cavity, a second movable cavity is formed in the inner wall of the first through cavity, and a second limiting plate matched with the second movable cavity is arranged on the first push rod 112; a second through cavity is further formed in the first push block 11 and is arranged above the first through cavity, a second push rod 113 penetrates through the second through cavity, a third movable cavity is formed in the inner wall of the second through cavity, and a third limiting plate matched with the third movable cavity is arranged on the second push rod 113; after the tea leaves are crushed, the inner barrel 3 is taken out of the outer shell 1, the first push block 11 is pushed downwards, the first push block 11 drives the first lug 111 to move downwards, the first lug 111 is in contact with one end of the supporting block 12, the supporting block 12 is pushed to rotate around a connecting point, the supporting block 12 rotates to an inclined state, the first push rod 112 is pushed into the outer shell 1, the first push rod 112 pushes the supporting block 12 to rotate continuously, the supporting block 12 is rotated into the first movable groove, and the outer shell 1 is poured to pour the tea leaves; when the inner barrel 3 is arranged in the outer shell 1, the second push rod 113 is pushed into the outer shell 1, the second push rod 113 pushes the supporting block 12 to rotate around a connecting point, the inner barrel 3 is arranged in the outer shell 1 after the supporting block 12 rotates to a horizontal position, the base 32 is arranged on the supporting block 12, and the inner barrel 3 is installed; under the mutual cooperation of the first push block and the first convex block, the supporting block is pushed to rotate in the first movable groove, the supporting block can only rotate to an inclined state under the action of the first convex block, the supporting block is enabled to continuously turn over under the action of the first push rod, the whole supporting block can be rotated into the first movable groove, the first movable groove is sealed by the supporting block, the situation that dust enters the first movable groove when tea leaves are poured out is avoided, meanwhile, the supporting block is prevented from blocking the pouring-out operation of the tea leaves, and the waste of the tea leaves is reduced; when the supporting block is required to be turned down, the second push rod is pushed, the top of the supporting block is pushed to turn over downwards by the second push rod, the supporting block is pushed to an inclined state by the second push rod piece, the supporting block turns over downwards under the action of gravity, the supporting block is turned to a horizontal state, the bottom surface of the supporting block is in contact with the bottom surface of the first movable groove, supporting force is provided for the supporting block, the base is stably arranged on the supporting block, and the matching effect of the inner barrel and the outer shell is improved.
Be equipped with first reset spring on the second limiting plate, be equipped with second reset spring on the third limiting plate, make first push rod and second push rod can automatic re-setting after removing under the reset spring effect to do control to the supporting shoe.
A fourth groove is formed in the inner wall of the first movable groove, a movable block 13 is arranged in the fourth groove, a second sliding block is arranged on the movable block, a second sliding groove matched with the second sliding block is formed in the inner wall of the fourth groove, a fourth limiting plate 131 is hinged to the movable block, and a second limiting spring 132 is arranged on the side wall of the movable block; a fifth groove matched with the fourth limiting plate is formed in the side wall of the supporting block; when the supporting block rotates and enters into the first movable groove, the supporting block side wall is contacted with the fourth limiting plate, the fourth limiting plate rotates around the connecting point, the movable block is pushed to move in the fourth groove, after the supporting block completely enters into the first movable groove, the fourth limiting plate enters into the fifth groove, the fourth limiting plate is matched with the fifth groove, the supporting block is fixed in the first movable groove, and the supporting block is prevented from being turned out from the first movable groove.
The mounting seat 24 is provided with a mounting groove, the connecting shaft 4 is inserted into the mounting groove, the bottom of the mounting seat 24 is provided with a connecting plate 241, the connecting plate 241 is provided with a third through cavity, a fixing plate 242 penetrates through the third through cavity, the inner wall of the third through cavity is provided with a sliding block, the side wall of the fixing plate 242 is provided with a first sliding groove matched with the first sliding block, the first sliding block is provided with a first limiting spring, and the connecting shaft 4 is provided with a fixing groove matched with the fixing plate 242; a fourth movable cavity matched with the fixed groove is arranged on the connecting shaft 4, a first rotating disc 42 is arranged in the fourth movable cavity, a second bump 421 is arranged on the first rotating disc 42, and a second push block 44 matched with the second bump 421 is arranged in the fourth movable cavity; when the cutter 41 is maintained, the first rotating disc 42 is rotated, the second lug 421 on the first rotating disc 42 is in contact with the second pushing block 44, the second lug 421 pushes the second pushing block 44 to move towards the outer side of the fixed groove, the second pushing block 44 pushes the fixed plate 242 to be separated from the fixed groove, the connecting shaft 4 is pulled outwards, the connecting shaft 4 is pulled out from the mounting groove, and the cutter 41 on the connecting shaft 4 is maintained; after the maintenance of the cutter 41 is completed, the fixing plate 242 is opposite to the fixing groove, the connecting shaft 4 is directly inserted into the mounting groove, and the fixing plate 242 is inserted into the fixing groove to complete the installation of the connecting shaft 4; under the mutual matching of the fixing plate and the fixing groove, the connecting shaft is fixed and prevented from rotating, the connecting shaft is fixed in the mounting groove, and the connecting effect of the connecting shaft and the mounting seat is improved; the connecting shaft is fixed in the mounting groove in a mode of directly pushing the connecting shaft into the mounting groove, so that the fixing plate is automatically matched with the fixing groove, the mounting difficulty of the connecting shaft is reduced, and the connecting shaft is conveniently connected with the mounting seat; the second lug is pushed to move by the rotation of the first rotary disc, so that the fixed plate is separated from the fixed groove, the connecting shaft is more convenient to disassemble and assemble, and the maintenance cost of the pulverizer is reduced.
The side wall of the second push block is provided with a third slide block, the inner wall of the fourth movable cavity is provided with a third slide groove matched with the third slide block, the third slide block is provided with a third reset spring, and the second push block is automatically reset under the third reset spring after pushing the second push block to move, so that the second push block is prevented from blocking the connection of the fixed plate.
A fifth movable cavity communicated with the fourth movable cavity is arranged below the fourth movable cavity, a second rotary table 43 is arranged in the fifth movable cavity, the second rotary table is connected with the first rotary table through a second connecting rod, an opening is formed in the side wall of the fifth movable cavity, a third push rod 431 is arranged on the second rotary table, and the third push rod penetrates through the opening; the second rotary table can be conveniently pushed to rotate under the arrangement of the third push rod, the second rotary table rotates to drive the first rotary table to rotate, the second convex block is in contact with the push block, the push block moves towards the outer side of the fixed groove, the fixed plate is pushed out from the fixed groove, and therefore the connecting shaft is detached from the mounting seat.
When tea leaves are crushed, the tea leaves are placed in the inner barrel, the cover plate is covered, the driving motor drives the connecting shaft and the inner barrel to rotate, the cutter is made to be fully contacted with the tea leaves, the tea leaves are crushed, the inner barrel rotates to throw the tea leaves out of the sieve pores under the action of centrifugal force, and the crushed tea leaves fall into the outer shell; after the tea leaves are crushed, the cover plate is opened, the inner barrel is taken out of the outer shell, the push block is pushed to move downwards, the support block enters the first movable groove, the outer shell is turned over, the tea leaves are poured out of the outer shell, meanwhile, the tea leaves in the inner barrel are poured out, and the tea leaves are screened; then directly pour into the clear water into in the shell to do the washing to the shell, interior bucket is put into the aquatic and is washd, reduces rubbing crusher's the washing degree of difficulty, so that rubbing crusher's next use.
Claims (5)
1. A method for identifying the truth of the West lake Longjing which ensures the reliability of the detection result is characterized in that: the method comprises the following steps:
a. processing before spectrum collection of a tea sample: crushing a tea sample in a traditional Chinese medicine crusher, sieving the crushed powder with a 40-mesh sieve, and accurately weighing 10g of the powder as a near-infrared analysis material;
b. collecting a tea sample near infrared spectrum: the acquisition of the near infrared spectrum of the tea sample is carried out on an IFS28/N near infrared spectrometer, and random software comprises the following steps: opus Quant2, the collection mode is absorption spectrum, and the spectrum is the average value of 64 scans;
c. the method comprises the following steps of (1) establishing dependent variables and independent variables of a west lake Longjing truth sample aiming at a partial least square method model: respectively assigning a dependent variable 'Y' to different samples, wherein the dependent variable 'Y' defined by the samples of the West lake Longjing has a value of 1, the dependent variable 'Y' of the samples of the non-West lake Longjing has a value of '-1', and the spectral data is used as an independent variable 'X';
d. the establishment of the west lake Longjing authenticity identification method comprises the following steps: randomly selecting 200 west lake Longjing samples and 100 other flat tea samples as training set samples, adopting internal cross validation, establishing an identification model of the west lake Longjing by using an original spectrum and a partial least square method, and then carrying out authenticity judgment by taking 0 as a middle value, wherein the non-west lake Longjing is determined when a calculated value of the model is less than 0, and the west lake Longjing is determined when the calculated value is more than 0;
e. and (3) identifying the truth of the West lake Longjing of the unknown sample: respectively processing and spectrum collecting unknown samples according to the steps a and b, analyzing the spectrum by using the partial least square method model established in the step d to obtain a predicted value, and carrying out authenticity judgment by using 0 as an intermediate value, wherein the non-West lake dragon well is used when the calculated value of the model is less than 0, and the authentic West lake dragon well is used when the calculated value is more than 0;
the traditional Chinese medicine pulverizer in the step a comprises an outer shell (1), an inner barrel (3) arranged in the outer shell (1) and a cover plate (2) arranged at the top of the outer shell (1), wherein a first movable groove is formed in the inner wall of the outer shell (1), the first movable groove is rotatably connected with a supporting block (12), a base (32) is arranged at the bottom of the inner barrel (3), a first groove matched with the supporting block (12) is formed in the base (32), a first connecting rod is arranged at the bottom of the inner barrel (3), a first limiting plate (33) is arranged at the bottom of the first connecting rod, and a first movable cavity matched with the first limiting plate (33) is formed in the base (32); the top of the cover plate (2) is provided with a driving motor (23), the bottom of the cover plate (2) is provided with a mounting seat (24), the mounting seat (24) is provided with a connecting shaft (4), the connecting shaft (4) is provided with a plurality of cutters (41), the bottom of the cover plate (2) is provided with a transmission ring (27) matched with the inner barrel (3), and the side wall of the inner barrel (3) is provided with a plurality of through holes; after tea samples are collected, the cover plate (2) is opened, the tea samples are placed in the inner barrel (3), the cover plate (2) is covered on the outer shell (1), the driving motor (23) drives the connecting shaft (4) to rotate, the connecting shaft (4) drives the cutter (41) and the transmission ring (27) to rotate, the transmission ring (27) is in contact with the inner barrel (3) to drive the inner barrel (3) to rotate, the cutter (41) is in contact with the tea to crush the tea, the crushed tea rotates along with the inner barrel (3) to throw the tea out of the through hole, and the tea falls into the outer shell (1); after the tea is crushed, opening the cover plate (2), taking the inner barrel (3) out of the outer shell (1), pouring the outer shell (1), taking out the tea in the outer shell (1), and collecting a tea sample;
a second movable groove is formed in the side wall of the outer shell (1), a through groove is formed in the inner wall of the second movable groove, the through groove is communicated with the first movable groove, a first push block (11) is arranged in the second movable groove, and a first convex block (111) matched with the supporting block (12) is arranged on the side wall of the first push block (11); a first through cavity is formed in the first bump (111), a first push rod (112) penetrates through the first through cavity, a second movable cavity is formed in the inner wall of the first through cavity, and a second limiting plate matched with the second movable cavity is arranged on the first push rod (112); a second through cavity is further formed in the first push block (11), the second through cavity is arranged above the first through cavity, a second push rod (113) penetrates through the second through cavity, a third movable cavity is formed in the inner wall of the second through cavity, and a third limiting plate matched with the third movable cavity is arranged on the second push rod (113); after the tea leaves are crushed, the inner barrel (3) is taken out of the outer shell (1), a first push block (11) is pushed downwards, the first push block (11) drives a first lug (111) to move downwards, the first lug (111) is in contact with one end of a supporting block (12), the supporting block (12) is pushed to rotate around a connecting point, the supporting block (12) rotates to an inclined state, a first push rod (112) is pushed into the outer shell (1), the first push rod (112) pushes the supporting block (12) to continue rotating, the supporting block (12) is rotated into a first movable groove, and the outer shell (1) is poured to pour out the tea leaves; when the inner barrel (3) is arranged in the outer shell (1), the second push rod (113) is pushed into the outer shell (1), the second push rod (113) pushes the supporting block (12) to rotate around the connecting point, the inner barrel (3) is arranged in the outer shell (1) after the supporting block (12) rotates to the horizontal position, and the base (32) is arranged on the supporting block (12) to complete the installation of the inner barrel (3).
2. The west lake Longjing authenticity identification method for ensuring the reliability of the detection result according to claim 1, characterized in that: the scanning area of the near-infrared spectrometer in the step b is 10000-.
3. The west lake Longjing authenticity identification method for ensuring the reliability of the detection result according to claim 1, characterized in that: the near infrared spectrum of said step b is collected at a temperature of 20-25 ℃ as data point 1685.
4. The west lake Longjing authenticity identification method for ensuring the reliability of the detection result according to claim 1, characterized in that: and c, processing the non-West lake Longjing sample in the step c by adopting a Longjing tea processing technology.
5. The west lake Longjing authenticity identification method for ensuring the reliability of the detection result according to claim 1, characterized in that: the mounting seat (24) is provided with a mounting groove, the connecting shaft (4) is inserted into the mounting groove, the bottom of the mounting seat (24) is provided with a connecting plate (241), the connecting plate (241) is provided with a third through cavity, a fixing plate (242) penetrates through the third through cavity, the inner wall of the third through cavity is provided with a first sliding block, the side wall of the fixing plate (242) is provided with a first sliding groove matched with the first sliding block, the first sliding block is provided with a first limiting spring, and the connecting shaft (4) is provided with a fixing groove matched with the fixing plate (242); a fourth movable cavity matched with the fixed groove is formed in the connecting shaft (4), a first rotating disc (42) is arranged in the fourth movable cavity, a second bump (421) is arranged on the first rotating disc (42), and a second push block (44) matched with the second bump (421) is arranged in the fourth movable cavity; when the cutter (41) is maintained, the first rotating disc (42) is rotated, the second bump (421) on the first rotating disc (42) is in contact with the second push block (44), the second bump (421) pushes the second push block (44) to move towards the outer side of the fixed groove, the second push block (44) pushes the fixed plate (242) to be separated from the fixed groove, the connecting shaft (4) is pulled outwards, the connecting shaft (4) is pulled out from the mounting groove, and the cutter (41) on the connecting shaft (4) is maintained; after the cutter (41) is maintained, the fixing plate (242) is opposite to the fixing groove, the connecting shaft (4) is directly inserted into the mounting groove, and the fixing plate (242) is inserted into the fixing groove to complete the mounting of the connecting shaft (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226165.XA CN110907244B (en) | 2019-12-04 | 2019-12-04 | West lake Longjing authenticity identification method capable of guaranteeing reliability of detection result |
| JP2020006434A JP6696073B1 (en) | 2019-12-04 | 2020-01-18 | Reliable Authenticity Identification Method for Saiko Tatsui Tea |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911226165.XA CN110907244B (en) | 2019-12-04 | 2019-12-04 | West lake Longjing authenticity identification method capable of guaranteeing reliability of detection result |
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| CN110907244A CN110907244A (en) | 2020-03-24 |
| CN110907244B true CN110907244B (en) | 2020-10-30 |
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| CN112816385B (en) * | 2020-12-31 | 2023-09-08 | 成都富思特新材料有限公司 | Method for detecting performance of heat insulation board |
| CN113252003B (en) * | 2021-05-28 | 2023-01-06 | 金川集团股份有限公司 | Method and device for checking and accepting mine roadway engineering specification and quality |
| CN113358599A (en) * | 2021-06-07 | 2021-09-07 | 浙江育英职业技术学院 | West lake Longjing traceability technology based on new retail mode |
| CN114345690B (en) * | 2022-01-19 | 2023-12-05 | 平利县飞燕茶业有限公司 | Tea leaf and tea leaf dust separation device |
| CN114608861B (en) * | 2022-03-31 | 2023-09-12 | 泰安市食品药品检验检测研究院(泰安市纤维检验所) | Multi-point sampling device for detecting tea yield |
| CN115250737A (en) * | 2022-08-24 | 2022-11-01 | 杭州茶否科技有限公司 | A trimming means for picking of fresh leaf of tealeaves |
| CN116165354B (en) * | 2023-04-20 | 2023-07-28 | 德州健之源生物科技有限公司 | Mulberry tea beverage detection device and detection method thereof |
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| CN110907244A (en) | 2020-03-24 |
| JP6696073B1 (en) | 2020-05-20 |
| JP2021089260A (en) | 2021-06-10 |
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