CN118624561B - Device and method for detecting food-borne pathogenic bacteria based on optics - Google Patents
Device and method for detecting food-borne pathogenic bacteria based on optics Download PDFInfo
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- CN118624561B CN118624561B CN202411116380.5A CN202411116380A CN118624561B CN 118624561 B CN118624561 B CN 118624561B CN 202411116380 A CN202411116380 A CN 202411116380A CN 118624561 B CN118624561 B CN 118624561B
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- 244000052616 bacterial pathogen Species 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 12
- 238000001514 detection method Methods 0.000 claims abstract description 90
- 235000013305 food Nutrition 0.000 claims abstract description 81
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 75
- 241000219112 Cucumis Species 0.000 claims abstract description 74
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims abstract description 74
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000004140 cleaning Methods 0.000 claims description 40
- 238000003825 pressing Methods 0.000 claims description 23
- 238000004804 winding Methods 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 13
- 238000004458 analytical method Methods 0.000 description 11
- 230000005389 magnetism Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007689 inspection Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 231100000678 Mycotoxin Toxicity 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 238000001391 atomic fluorescence spectroscopy Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002636 mycotoxin Substances 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000000273 veterinary drug Substances 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
-
- 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
-
- 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
-
- 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
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
-
- 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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- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to the technical field of food-borne pathogenic bacteria detection, in particular to a device for detecting food-borne pathogenic bacteria based on optics, which comprises a conveyor belt, wherein a bracket is arranged on the upper side of the middle part of the conveyor belt, and a near infrared hyperspectral system detection head is arranged in the middle of the lower end of the bracket; according to the invention, as the lifting frame continues to lift, the gear shaft can lift to the tail end of the teeth on the rack, at the moment, the gear shaft is not meshed with the rack any more, the torsion spring drives the gear shaft, the square telescopic rod, the arc magnetic connecting plate, the clamping plate and the melon and fruit food sample to reset for a while, the clamping plate is extruded by the top frame, the clamping plate can slide downwards on the arc magnetic connecting plate, the clamping plate on the other side can slide upwards to tilt upwards, at the moment, the transverse plate I and the transverse plate II on the two sides can extrude the spring II, the melon and fruit food sample can rotate anticlockwise under the action of the clamping plates on the two sides, so that the melon and fruit food sample can be conveniently subjected to multi-angle rotation detection, and the detection quality and efficiency are improved.
Description
Technical Field
The invention relates to the technical field of food-borne pathogenic bacteria detection, in particular to a device and a method for detecting food-borne pathogenic bacteria based on optics.
Background
The food inspection indexes mainly comprise general component analysis, microelement analysis, pesticide residue analysis, veterinary drug residue analysis, mycotoxin analysis, food additive analysis, analysis of other harmful substances and the like of food. The inspection of each index corresponds to a corresponding inspection method according to the characteristics of the inspected item. In addition to conventional analytical methods, instrumental analytical methods are becoming the primary means of food hygiene testing, including spectrophotometry, atomic fluorescence spectrometry, electrochemical methods, atomic absorption spectrometry, gas chromatography, high performance liquid chromatography, and the like. The above test methods can be broadly classified into an inorganic component analysis method and an organic component analysis method according to the test items.
The patent with bulletin number 201310309189.8 discloses a food-borne pathogenic bacteria detection system and method based on hyperspectrum, which comprises a surface detection line, a sorting line, a point detection line, a control system, a support frame and a plurality of sample containing boxes, wherein the surface detection line, the sorting line and the point detection line are respectively connected with the control system and are sequentially arranged on the support frame.
However, when the device is used, the near infrared hyperspectral system 1-1 is arranged above the central area of the surface detection transmission belt 1-3 through the surface detection line portal frame 1-4 and is used for carrying out hyperspectral surface scanning on the sample in the sample holding box 4 and transmitting the result to the control system 6, and the hyperspectral surface scanning can only be carried out on one angle of the sample, so that the detection quality of the sample is not facilitated, manual operation is required when the sample is turned over, and the detection efficiency is poor.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, only one angle of a sample can be scanned by a hyperspectral surface, the detection quality of the sample is not facilitated, manual operation is required if the sample is turned over, and the detection efficiency is poor.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The device for detecting the food-borne pathogenic bacteria based on the optics comprises a conveyor belt, wherein a bracket is arranged on the upper side of the middle part of the conveyor belt, and a near infrared hyperspectral system detection head is arranged in the middle of the lower end of the bracket;
The multi-angle infrared detection device is characterized by further comprising a multi-angle detection mechanism for carrying out multi-angle infrared detection on food, wherein the multi-angle detection mechanism comprises two clamping plates which are arranged in the middle of the upper end of a conveyor belt and are symmetrically arranged left and right, a gap is reserved between the lower end of each clamping plate and the conveyor belt, an arc-shaped magnetic connecting plate is slidably arranged at one end of each clamping plate, a square telescopic rod is fixedly arranged at the middle of one end of each arc-shaped magnetic connecting plate, a gear shaft is fixedly arranged at one end of each square telescopic rod, a lifting frame is rotatably arranged on each two gear shafts, a hydraulic cylinder is fixedly arranged at the middle of the upper end of each lifting frame, the middle of each hydraulic cylinder is fixedly connected with a bracket, a first spring is sleeved on the outer side of each square telescopic rod, and two ends of the first spring are fixedly connected with the gear shaft and the arc-shaped magnetic connecting plate respectively;
the cleaning mechanism comprises a magnetic bearing box arranged at the right lower side of the detection head of the near infrared hyperspectral system, a rotating rod is rotatably arranged in the middle of the inner bottom of the magnetic bearing box, a winding roller is fixedly arranged at the upper end of the rotating rod, a cleaning block is fixedly arranged at the upper end of the winding roller, and a torsion spring III is sleeved on the outer side of the rotating rod.
Preferably, the magnetic frame is attached to one end of the arc-shaped magnetic connecting plate, which is far away from each other, and the upper end of the magnetic frame is fixedly connected with the bracket, and the arc-shaped magnetic connecting plate and the magnetic frame are magnetically attracted to each other.
Preferably, the outer sides of the gear shafts are respectively sleeved with a torsion spring I, the upper sides of the gear shafts are provided with mutually matched racks, and the upper ends of the racks are fixedly arranged on the support.
Preferably, the middle part of the front end of the clamping plate is fixedly provided with a first transverse plate, one end of the arc-shaped magnetic connecting plate, which is close to each other, is vertically staggered and is fixedly provided with a second transverse plate, a second spring is fixedly arranged between the first transverse plate and the second transverse plate, and the middle part of the right end of the rack is fixedly provided with a top frame corresponding to the left clamping plate.
Preferably, the middle part of one end that the splint is close to each other is gone up and is all run through slidable mounting and is pressed the briquetting, presses the equal fixed mounting of bilateral symmetry of one end that the briquetting is kept away from each other and has the spring III, and the spring three other end and splint inside fixed connection.
Preferably, clamping strips are symmetrically inserted into the upper and lower ends of the clamping plates, which are close to each other, and active air bags are fixedly installed at the ends, which are far away from each other, of the pressing blocks, wherein the active air bags are communicated with passive air bags, and two ends of each passive air bag are fixedly connected with the clamping strips and the inside of the clamping plates respectively.
Preferably, the equal fixed mounting of arc magnetism connecting plate upper end has the push pedal, and one side that the push pedal is close to each other all is equipped with the sloping block, and equal fixed mounting in sloping block upper end has guide arm one, and the link is all run through slidable mounting on guide arm one upper end, link lower extreme and crane fixed connection, all overlaps on the guide arm one outside and is equipped with spring four, both ends respectively with link and sloping block fixed connection about the spring four.
Preferably, the one ends that the gear shaft kept away from each other are all fixed mounting has the lug wheel, and the lug wheel upside is equipped with the lug pole, rotates on the lug pole front side and installs the connecting axle, and connecting axle right-hand member fixed mounting is on the rack, and the cover is equipped with torsional spring two on the connecting axle outside.
Preferably, the winding has wire rope on the wind-up roll outside, wire rope's both ends respectively with wind-up roll and support fixed connection, fixed mounting has guide arm two on the magnetism accepting box front end, and guide arm two right-hand member runs through slidable mounting on the support, and support right-hand member corresponds guide arm two butt laminating and is equipped with the limiting plate, and the crane upper end corresponds magnetism accepting box fixed mounting and has the magnetic plate.
A method for detecting a device for food-borne pathogenic bacteria based on optics comprises the following specific steps:
Step one, cleaning dust and impurities on the lower surface of a detection head of a near infrared hyperspectral system through a cleaning mechanism;
Step two, clamping and lifting the melon and fruit food sample through the multi-angle detection mechanism, automatically overturning and rotating the melon and fruit food sample, and carrying out multi-angle detection on the melon and fruit food sample;
step three, the arc-shaped magnetic connecting plates are mutually moved close to each other through the push plate and the inclined block, so that a buffering effect is achieved;
Step four, extruding the active air bag by pressing the pressing block, so that the gas in the active air bag enters the passive air bag, and further pushing the upper, lower, front and rear clamping bars to extend out of the inside of the clamping plate, and stably abutting and clamping the two end parts of the melon and fruit food sample;
and fifthly, blocking the lug on the lug wheel through the lug at the lower end of the lug rod, and driving the lug rod to rotate on the connecting shaft when two lugs collide, so as to compress the torsion spring II, thereby slowing down the rotating speed of the gear shaft when the torsion spring I resets.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the hydraulic cylinder is started to drive the lifting frame to lift, the lifting frame drives the gear shafts and the torsion spring I at two sides to lift (the torsion spring I can enable the gear shafts not to rotate in the lifting process), the gear shafts drive the square telescopic rods at two sides, the arc-shaped magnetic connecting plates and the clamping plates to synchronously lift, when the arc-shaped magnetic connecting plates lift, the arc-shaped magnetic connecting plates are separated from the magnetic frame, and then the arc-shaped magnetic connecting plates at two sides are pushed to move close to each other under the action of the spring I, the square telescopic rods automatically extend out, the arc-shaped magnetic connecting plates also drive the clamping plates at two sides to move close to each other, two ends of the melon and fruit food samples are clamped, and the gear shafts are meshed with the racks along with the continuous lifting of the lifting frame to further drive the torsion spring I to rotate on the lifting frame, so that the melon and fruit food samples at the moment are synchronously lifted by the clamping plates at two sides, and the arc-shaped magnetic connecting plates, the square telescopic rods and the gear shafts are driven to synchronously rotate when the gear shafts rotate as a whole, so that the melon and fruit food samples at the moment can be driven to automatically turn over different faces of the melon and fruit food samples, and the melon and fruit food samples are detected, and the quality of different melon and fruit food samples are detected.
2. According to the invention, as the lifting frame continues to lift, the gear shaft can lift to the tail end of the teeth on the rack, at the moment, the gear shaft is not meshed with the rack any more, the torsion spring drives the gear shaft, the square telescopic rod, the arc magnetic connecting plate, the clamping plate and the melon and fruit food sample to reset for a while, the clamping plate is extruded by the top frame, the clamping plate can slide downwards on the arc magnetic connecting plate, the clamping plate on the other side can slide upwards to tilt upwards, at the moment, the transverse plate I and the transverse plate II on the two sides can extrude the spring II, the melon and fruit food sample can rotate anticlockwise under the action of the clamping plates on the two sides, so that the melon and fruit food sample can be conveniently subjected to multi-angle rotation detection, and the detection quality and efficiency are improved.
3. In the invention, when the arc-shaped magnetic connecting plates at two sides are close to each other, the two side pushing plates are driven to be close to each other, the pushing plates are contacted with the inclined blocks, the inclined blocks and the guide rod I are pushed to move upwards on the connecting frame, the spring IV is compressed, the inclined blocks can be reset under the action of the spring IV until the pushing plates pass over the inclined blocks, the arranged pushing plates and the inclined blocks conveniently move towards the arc-shaped magnetic connecting plates, the buffer effect is achieved, the situation that the damage to melon and fruit food samples occurs due to the fact that the movement speed of the arc-shaped magnetic connecting plates at two sides is too high when the first springs release the accumulated force is avoided, and the subsequent detection quality is ensured.
4. According to the invention, when clamping plates on two sides clamp a melon and fruit food sample, the pressing blocks are firstly contacted with two ends of the melon and fruit food sample, the pressing blocks are extruded by the two ends of the melon and fruit food sample and slide towards the inside of the clamping plates, the spring III is compressed, and the pressing blocks also extrude the driving air bag, so that gas in the driving air bag enters the passive air bag, and further the clamping strips which are up and down, front and back are pushed to extend out of the inside of the clamping plates to butt and clamp the two ends of the melon and fruit food sample, the falling condition of the melon and fruit food sample during overturning movement is avoided, the normal operation of detection work is ensured, and the detection quality and efficiency are ensured.
5. In the invention, when the gear shaft rises to the tail end of the tooth at the upper end of the rack, the gear shaft can also drive the lug wheel to rotate for resetting under the action of the first torsion spring, the lug on the lug wheel can collide with the lug rod, the lug at the lower end of the lug rod can block the lug on the lug wheel, and when two lugs collide, the lug rod can be driven to rotate on the connecting shaft to compress the second torsion spring, so that the rotating speed of the gear shaft is slowed down when the first torsion spring is reset, thereby avoiding the situation that the clamped melon and fruit food sample is loose and worn due to too high rotating speed when the gear shaft is reset, and also playing a good protection role on the melon and fruit food sample, and ensuring the quality of subsequent detection.
6. According to the invention, when the lifting frame ascends, the magnetic plate is driven to ascend, the magnetic block on the magnetic plate generates magnetic repulsive force on the magnetic bearing box when the magnetic plate ascends to the right side of the magnetic bearing box, and further the magnetic bearing box and the guide rod II are pushed to move leftwards on the bracket, the magnetic bearing box drives the rotating rod, the winding roller and the cleaning block to synchronously move, at the moment, the wound steel wire rope can be unfolded from the winding roller to compress the torsion spring III, the winding roller, the rotating rod and the cleaning block can rotate inside the magnetic bearing box, when the cleaning block moves to the lower side of the detection head of the near infrared hyperspectral system along with the magnetic bearing box, the cleaning block is contacted with the lower surface of the detection head of the near infrared hyperspectral system, dust and impurities on the surface of the detection head of the near infrared hyperspectral system are prevented from being influenced by dust and impurities adhered on the detection head of the near infrared hyperspectral system, and as the cleaning block is in a rotating state, the cleaning effect is good, and the magnetic bearing box is convenient for collecting dust and impurities which fall on fruit food samples below, and the detection quality is also ensured.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic bottom perspective view of the present invention;
FIG. 3 is a schematic view of the left side cross-sectional structure of the present invention;
FIG. 4 is an enlarged schematic view of the clamping plate of FIG. 1 according to the present invention;
FIG. 5 is an enlarged schematic view of the connection between the clamping plate and the lifting frame in FIG. 3 according to the present invention;
FIG. 6 is an enlarged schematic view of the connection between the bracket and the magnetic bearing box in FIG. 1 according to the present invention;
FIG. 7 is an enlarged schematic view of the junction of the cartridge and the cleaning block of FIG. 6 according to the present invention;
FIG. 8 is a schematic cross-sectional view of the cleat of FIG. 4, in accordance with the present invention;
FIG. 9 is a schematic diagram of the structure of FIG. 4A according to the present invention;
FIG. 10 is a schematic view of the structure of FIG. 5B according to the present invention;
in the figure, 1, a conveyor belt, 2, a bracket and 3, a near infrared hyperspectral system detection head;
the multi-angle detection mechanism comprises a 4, a clamping plate, a 5, an arc-shaped magnetic connecting plate, a 6, a square telescopic rod, a 61, a gear shaft, a 7, a lifting frame, an 8, a hydraulic cylinder, a 9, a first spring, a 10, a magnetic frame, a 11, a first torsion spring, a 12, a rack, a 13, a first transverse plate, a 14, a second transverse plate, a 15, a second spring, a 16, a top frame, a 17, a pressing block, a 18, a third spring, a 19, a clamping bar, a 20, an active air bag, a 21, a passive air bag, a 22, a push plate, a 23, an inclined block, a 24, a first guide rod, a 25, a fourth spring, a 26, a connecting frame, a 27, a bump wheel, a 28, a bump rod, a 29, a connecting shaft, a 30 and a second torsion spring;
31 parts of cleaning mechanism, 32 parts of magnetic bearing box, 32 parts of rotating rod, 33 parts of wind-up roll, 34 parts of cleaning block, 35 parts of torsion spring III, 36 parts of steel wire rope, 37 parts of guide rod II, 38 parts of limiting plate, 39 parts of magnetic plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to figures 1-10, a device for optically detecting food-borne pathogenic bacteria comprises a conveyor belt 1, a bracket 2 is arranged on the upper side of the middle part of the conveyor belt 1, a near infrared hyperspectral system detection head 3 is arranged in the middle of the lower end of the bracket 2, a multi-angle detection mechanism for carrying out multi-angle infrared detection on food is further arranged, the multi-angle detection mechanism comprises two clamping plates 4 which are arranged in the middle of the upper end of the conveyor belt 1 and are symmetrically arranged left and right, a gap is reserved between the lower end of the clamping plates 4 and the conveyor belt 1, an arc-shaped magnetic connecting plate 5 is slidably arranged at one end of the clamping plates 4, square telescopic rods 6 are fixedly arranged at the middle parts of one ends of the arc-shaped magnetic connecting plate 5, a lifting frame 7 is rotatably arranged on the two gear shafts 61, a hydraulic cylinder 8 is fixedly arranged at the middle parts of the upper ends of the lifting frame 7, a first spring 9 is sleeved on the outer side of the square telescopic rods 6, two ends of the first spring 61 and the arc-shaped magnetic connecting plate 5 are fixedly connected with each other, one end of the arc-shaped magnetic connecting plate 5 is attached to a first transverse frame 10, a second transverse frame 10 is fixedly arranged on the upper end of the bracket 12 and is fixedly arranged on the two transverse frames 12, two transverse frames 12 are fixedly arranged on the two transverse frames 12 and are fixedly arranged at the upper ends of the two transverse frames 12, and the two transverse frames 12 are fixedly arranged at the upper ends of the transverse frames 12 and are fixedly arranged on the two transverse frames 12, respectively, and the upper ends of the transverse frame 12 are fixedly arranged at the transverse frame 12 and the upper ends are fixedly arranged at the upper ends of the transverse frame 12 and the upper end of the transverse frame and the transverse frame is fixedly arranged at the transverse frame and the transverse frame is mounted on the transverse frame and the transverse frame is mounted upper end is mounted on the transverse frame and the upper end is installed, the middle part of the right end of the rack 12 is fixedly provided with a top frame 16 corresponding to the left clamping plate 4, the middle parts of the ends of the clamping plates 4 close to each other are respectively penetrated and slidably provided with a pressing block 17, the upper and lower symmetrical ends of the pressing blocks 17 far away from each other are respectively fixedly provided with a spring III 18, the other ends of the springs III 18 are fixedly connected with the inside of the clamping plates 4, the upper and lower symmetrical ends of the clamping plates 4 close to each other are respectively inserted with a clamping strip 19, the ends of the pressing blocks 17 far away from each other are respectively fixedly provided with an active air bag 20, the active air bags 20 are communicated with a passive air bag 21, the two ends of the passive air bags 21 are respectively fixedly connected with the clamping strips 19 and the inside of the clamping plates 4, the upper ends of the arc-shaped magnetic connecting plates 5 are respectively fixedly provided with a push plate 22, the side of the push plate 22, which is close to each other, is provided with an inclined block 23, the upper end of the inclined block 23 is fixedly provided with a first guide rod 24, the upper end of the first guide rod 24 is provided with a connecting frame 26 in a penetrating and sliding manner, the lower end of the connecting frame 26 is fixedly connected with the lifting frame 7, the outer side of the first guide rod 24 is sleeved with a fourth spring 25, the upper end and the lower end of the fourth spring 25 are respectively fixedly connected with the connecting frame 26 and the inclined block 23, one end, which is far away from each other, of the gear shaft 61 is fixedly provided with a cam wheel 27, the upper side of the cam wheel 27 is provided with a cam rod 28, the front side of the cam rod 28 is rotatably provided with a connecting shaft 29, the right end of the connecting shaft 29 is fixedly arranged on the rack 12, and the outer side of the connecting shaft 29 is sleeved with a second torsion spring 30;
During operation, oval melon and fruit food samples are conveyed through the conveyor belt 1, when the melon and fruit food samples move to the lower side of the detection head 3 of the near infrared hyperspectral system, the detection head 3 of the near infrared hyperspectral system detects infrared light of the melon and fruit food samples, the hydraulic cylinder 8 is started to drive the lifting frame 7 to lift, the lifting frame 7 drives the gear shafts 61 and the torsion springs 11 on two sides to lift (the torsion springs 11 can enable the gear shafts 61 not to rotate in the lifting process), and the gear shafts 61 drive the square telescopic rods 6 on two sides to move, The arc magnetic connecting plates 5 and the clamping plates 4 rise synchronously, when the arc magnetic connecting plates 5 rise, the arc magnetic connecting plates are separated from the magnetic frame 10, and then the arc magnetic connecting plates 5 at two sides are pushed to move close to each other under the action of the first spring 9, and the square telescopic rods 6 automatically extend out, the arc magnetic connecting plates 5 also drive the clamping plates 4 at two sides to move close to each other, the two ends of a melon and fruit food sample are clamped, along with the continuous rising of the lifting frame 7, the gear shafts 61 at two sides are meshed with the racks 12, the gear shafts 61 are driven to rotate on the lifting frame 7, the first torsion spring 11 is compressed, and the melon and fruit food sample is clamped and rises synchronously by the clamping plates 4 at two sides, so the melon and fruit food sample at the moment and the clamping plates 4 at two sides, The arc magnetic connecting plate 5, the square telescopic rod 6 and the gear shaft 61 are integrated, and then the gear shaft 61 can drive the melon and fruit food samples to synchronously rotate when rotating, so that the melon and fruit food samples can be automatically turned over, the different faces of the melon and fruit food samples can be conveniently subjected to infrared light detection, the detection efficiency and quality are improved, the gear shaft 61 can be lifted to the tail end of the tooth on the rack 12 along with the continuous lifting of the lifting frame 7, the gear shaft 61 is not meshed with the rack 12 any more, and the first torsion spring 11 can drive the gear shaft 61, the square telescopic rod 6, the arc magnetic connecting plate 5, The clamping plate 4 and the melon and fruit food sample reset, the clamping plate 4 is extruded by the top frame 16, the clamping plate 4 can slide downwards on the arc magnetic connecting plate 5, the clamping plate 4 at the other side can slide upwards and tilt upwards, the transverse plate I13 and the transverse plate II 14 at the two sides can extrude the spring II 15, the melon and fruit food sample can rotate anticlockwise under the action of the clamping plate 4 at the two sides, the melon and fruit food sample can be conveniently subjected to multi-angle rotation detection, the detection quality and the efficiency are improved, when the arc magnetic connecting plates 5 at the two sides are mutually close, the pushing plates 22 at the two sides are also driven to mutually close, the pushing plates 22 are contacted with the inclined blocks 23, the inclined blocks 23 and the guide rod I24 are pushed to move upwards on the connecting frame 26, the spring IV 25 is compressed, the inclined blocks 23 can reset under the action of the spring IV 25 until the pushing plates 22 pass the inclined blocks 23, when the push plate 22 and the inclined block 23 are arranged to facilitate the mutual approaching movement of the arc-shaped magnetic connecting plates 5, a buffer effect is achieved, when the first spring 9 releases the accumulated force, the arc-shaped magnetic connecting plates 5 on two sides are prevented from moving too fast, the extruding force on the melon and fruit food sample is too large, the damage condition of the melon and fruit food sample is caused, the subsequent detection quality is ensured, when the clamping plates 4 on two sides clamp the melon and fruit food sample, the pressing blocks 17 are firstly contacted with two ends of the melon and fruit food sample, the pressing blocks 17 are extruded by two ends of the melon and fruit food sample, the pressing blocks slide towards the inside of the clamping plates 4, the third spring 18 is compressed, the pressing blocks 17 also extrude the driving air bag 20, the gas in the driving air bag 20 enters the driven air bag 21, and then the up and down can be pushed, The front clamping strip 19 and the rear clamping strip 19 extend out of the clamping plate 4 to butt and clamp two end parts of a melon and fruit food sample, so that the situation that the melon and fruit food sample falls off during overturning is ensured, normal running of detection work is ensured, detection quality and efficiency are ensured, when the gear shaft 61 rises to the tail end of the tooth at the upper end of the rack 12, the gear shaft 61 also drives the lug wheel 27 to rotate and reset under the action of the first torsion spring 11, the lug on the lug wheel 27 collides with the lug rod 28, the lug at the lower end of the lug rod 28 can block the lug on the lug wheel 27, the lug rod 28 can be driven to rotate on the connecting shaft 29 when the two lugs collide, the second torsion spring 30 is compressed, and then the rotating speed of the first torsion spring 11 is slowed down, the rotating speed of the gear shaft 61 is prevented from being too fast during resetting, the situation that the clamped melon and fruit food sample is loose and worn is caused, the quality of subsequent detection is ensured.
The invention is used as an embodiment, the invention also provides a cleaning mechanism for cleaning dust and impurities on the surface of the detection head 3 of the near infrared hyperspectral system, the cleaning mechanism comprises a magnetic bearing box 31 arranged at the right lower side of the detection head 3 of the near infrared hyperspectral system, a rotating rod 32 is rotatably arranged at the middle part of the inner bottom end of the magnetic bearing box 31, a winding roller 33 is fixedly arranged at the upper end of the rotating rod 32, a cleaning block 34 is fixedly arranged at the upper end of the winding roller 33, a torsion spring III 35 is sleeved on the outer side of the rotating rod 32, a steel wire rope 36 is wound on the outer side of the winding roller 33, two ends of the steel wire rope 36 are fixedly connected with the winding roller 33 and a bracket 2 respectively, a guide rod II 37 is fixedly arranged at the front end of the magnetic bearing box 31, the right end of the guide rod II 37 is penetrated and slidably arranged on the bracket 2, a limiting plate 38 is arranged at the right end of the bracket 2 in a butt joint manner corresponding to the guide rod II 37, and a magnetic plate 39 is fixedly arranged at the upper end of the lifting bracket 7 corresponding to the magnetic bearing box 31;
During operation, when the lifting frame 7 ascends, the magnetic plate 39 is driven to ascend, when the magnetic plate 39 ascends to the right side of the magnetic bearing box 31, the magnetic block on the magnetic plate 39 generates magnetic repulsion force to the magnetic bearing box 31, and then the magnetic bearing box 31 and the second guide rod 37 are pushed to move leftwards on the support 2, the magnetic bearing box 31 drives the rotating rod 32, the winding roller 33 and the cleaning block 34 to synchronously move, at the moment, the wound steel wire rope 36 can be unfolded from the winding roller 33, the third torsion spring 35 is compressed, the winding roller 33, the rotating rod 32 and the cleaning block 34 can rotate inside the magnetic bearing box 31, when the cleaning block 34 moves to the lower side of the near infrared hyperspectral system detection head 3 along with the magnetic bearing box 31, the cleaning block 34 contacts with the lower surface of the near infrared hyperspectral system detection head 3, dust and impurities on the surface of the near infrared hyperspectral system detection head 3 are prevented from being influenced by the dust and impurities, and the cleaning block 34 is prevented from affecting the detection quality, and as the cleaning block 34 is in a rotating state, the winding wire rope 36 can be conveniently unfolded from the winding roller 33, the rotating rod 32 and the cleaning block 34 can be conveniently rotated inside the magnetic bearing box 31, the cleaning block 34 can be prevented from rotating on the lower side of the winding box 31, the lower side of the cleaning block is prevented from being reset from the lower side of the magnetic block 34 and the lower surface of the near infrared hyperspectral system detection head 3, and the impurities are prevented from being reset on the surface of the near infrared hyperspectral system detection head 3, and the cleaning dust and impurities are prevented from the dust and impurities on the cleaning block.
A method for detecting a device for food-borne pathogenic bacteria based on optics comprises the following specific steps:
step one, cleaning dust and impurities on the lower surface of a detection head 3 of a near infrared hyperspectral system through a cleaning mechanism;
Step two, clamping and lifting the melon and fruit food sample through the multi-angle detection mechanism, automatically overturning and rotating the melon and fruit food sample, and carrying out multi-angle detection on the melon and fruit food sample;
step three, the arc-shaped magnetic connecting plate 5 is buffered when being moved close to each other through the push plate 22 and the inclined block 23;
Step four, extruding the active air bag 20 by the pressing block 17 to enable the air in the active air bag 20 to enter the passive air bag 21, so as to push the upper, lower, front and rear clamping strips 19 to extend out of the clamping plate 4, and stably abutting and clamping the two end parts of the melon and fruit food sample;
and fifthly, the bump on the bump wheel 27 is blocked by the bump at the lower end of the bump rod 28, when two bumps collide, the bump rod 28 is driven to rotate on the connecting shaft 29, the torsion spring II 30 is compressed, and then the rotation speed of the gear shaft 61 is slowed down when the torsion spring I11 is reset.
Working principle:
When the infrared detection device is used, oval melon and fruit food samples are conveyed through the conveyor belt 1, when the melon and fruit food samples move to the lower side of the detection head 3 of the near infrared hyperspectral system, the detection head 3 of the near infrared hyperspectral system is used for infrared detection of the melon and fruit food samples, the hydraulic cylinder 8 is started to drive the lifting frame 7 to lift, the lifting frame 7 drives the gear shafts 61 and the torsion springs 11 on two sides to lift (the torsion springs 11 can prevent the gear shafts 61 from rotating in the lifting process), and the gear shafts 61 drive the square telescopic rods 6 on two sides, The arc magnetic connecting plates 5 and the clamping plates 4 rise synchronously, when the arc magnetic connecting plates 5 rise, the arc magnetic connecting plates are separated from the magnetic frame 10, and then the arc magnetic connecting plates 5 at two sides are pushed to move close to each other under the action of the first spring 9, and the square telescopic rods 6 automatically extend out, the arc magnetic connecting plates 5 also drive the clamping plates 4 at two sides to move close to each other, the two ends of a melon and fruit food sample are clamped, along with the continuous rising of the lifting frame 7, the gear shafts 61 at two sides are meshed with the racks 12, the gear shafts 61 are driven to rotate on the lifting frame 7, the first torsion spring 11 is compressed, and the melon and fruit food sample is clamped and rises synchronously by the clamping plates 4 at two sides, so the melon and fruit food sample at the moment and the clamping plates 4 at two sides, The arc magnetic connecting plate 5, the square telescopic rod 6 and the gear shaft 61 are integrated, and then the gear shaft 61 can drive the melon and fruit food samples to synchronously rotate when rotating, so that the melon and fruit food samples can be automatically turned over, the different faces of the melon and fruit food samples can be conveniently subjected to infrared light detection, the detection efficiency and quality are improved, the gear shaft 61 can be lifted to the tail end of the tooth on the rack 12 along with the continuous lifting of the lifting frame 7, the gear shaft 61 is not meshed with the rack 12 any more, and the first torsion spring 11 can drive the gear shaft 61, the square telescopic rod 6, the arc magnetic connecting plate 5, The clamping plate 4 and the melon and fruit food sample reset, the clamping plate 4 is extruded by the top frame 16, the clamping plate 4 can slide downwards on the arc magnetic connecting plate 5, the clamping plate 4 at the other side can slide upwards and tilt upwards, the transverse plate I13 and the transverse plate II 14 at the two sides can extrude the spring II 15, the melon and fruit food sample can rotate anticlockwise under the action of the clamping plate 4 at the two sides, the melon and fruit food sample can be conveniently subjected to multi-angle rotation detection, the detection quality and the efficiency are improved, when the arc magnetic connecting plates 5 at the two sides are mutually close, the pushing plates 22 at the two sides are also driven to mutually close, the pushing plates 22 are contacted with the inclined blocks 23, the inclined blocks 23 and the guide rod I24 are pushed to move upwards on the connecting frame 26, the spring IV 25 is compressed, the inclined blocks 23 can reset under the action of the spring IV 25 until the pushing plates 22 pass the inclined blocks 23, when the push plate 22 and the inclined block 23 are arranged to facilitate the mutual approaching movement of the arc-shaped magnetic connecting plates 5, a buffer effect is achieved, when the first spring 9 releases the accumulated force, the arc-shaped magnetic connecting plates 5 on two sides are prevented from moving too fast, the extruding force on the melon and fruit food sample is too large, the damage condition of the melon and fruit food sample is caused, the subsequent detection quality is ensured, when the clamping plates 4 on two sides clamp the melon and fruit food sample, the pressing blocks 17 are firstly contacted with two ends of the melon and fruit food sample, the pressing blocks 17 are extruded by two ends of the melon and fruit food sample, the pressing blocks slide towards the inside of the clamping plates 4, the third spring 18 is compressed, the pressing blocks 17 also extrude the driving air bag 20, the gas in the driving air bag 20 enters the driven air bag 21, and then the up and down can be pushed, the front and rear clamping strips 19 extend out of the clamping plate 4 to butt and clamp two end parts of the melon and fruit food sample, so that the melon and fruit food sample is prevented from falling off during overturning, the normal operation of detection work is ensured, the detection quality and efficiency are ensured, when the gear shaft 61 rises to the tail end of the tooth at the upper end of the rack 12, the gear shaft 61 also drives the bump wheel 27 to rotate and reset under the action of the torsion spring 11 when the gear shaft 61 rotates and resets, bumps on the bump wheel 27 collide with the bump rod 28, bumps at the lower end of the bump rod 28 block bumps on the bump wheel 27, when two bumps collide, the bump rod 28 is driven to rotate on the connecting shaft 29, compressing the second torsion spring 30, further slowing down the rotation speed of the first torsion spring 11 when resetting, thus avoiding the situation that the rotation speed of the gear shaft 61 is too fast when resetting, leading to loose abrasion of clamped melon and fruit food samples, and also playing a good role in protecting the melon and fruit food samples, ensuring the quality of subsequent detection, when the lifting frame 7 is lifted, the magnetic plate 39 is also driven to lift, and when the magnetic plate 39 is lifted to the right side of the magnetic bearing box 31, the magnetic block on the magnetic plate 39 generates magnetic repulsive force to the magnetic bearing box 31, and further pushes the magnetic bearing box 31 and the second guide rod 37 to move leftwards on the bracket 2, the magnetic bearing box 31 drives the rotating rod 32, the winding roller 33 and the cleaning block 34 synchronously move, and the wound steel wire rope 36 is unwound from the winding roller 33, compresses the torsion spring III 35, the winding roller 33, The bull stick 32 and clearance piece 34 can be at magnetism box 31 internal rotation that accepts, when clearance piece 34 moved to near infrared hyperspectral system detection head 3 downside along with magnetism box 31 accepted, clearance piece 34 and near infrared hyperspectral system detection head 3 lower surface contact, clear up dust and impurity on near infrared hyperspectral system detection head 3 surface, avoid adhesion dust and impurity on the near infrared hyperspectral system detection head 3 to influence the quality of detection, because clearance piece 34 self is also rotation state, so cleaning effect is better, and magnetism box 31 accepted also is convenient for collect the dust and the impurity that the clearance falls, avoided dust and impurity to fall to on the melon fruit food sample of below, the same quality of detection has been guaranteed, when the upper end of magnetic plate 39 is far away from magnetism box 31 right side accepted, can drive bull stick 32 under the effect of torsional spring three 35 The wind-up roller 33 and the cleaning block 34 rotate automatically to wind up the steel wire rope 36, so that the magnetic bearing box 31 and the second guide rod 37 move rightwards to reset, and the limiting plate 38 limits the second guide rod 37 and the magnetic bearing box 31 when reset.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The device for detecting the food-borne pathogenic bacteria based on the optics comprises a conveyor belt (1), and is characterized in that a bracket (2) is arranged on the upper side of the middle part of the conveyor belt (1), and a near infrared hyperspectral system detection head (3) is arranged in the middle of the lower end of the bracket (2);
Still be equipped with the multi-angle detection mechanism that is used for carrying out multi-angle infrared light detection to food, multi-angle detection mechanism is including setting up in conveyer belt (1) upper end middle part, and be two splint (4) that bilateral symmetry set up, there is the clearance between splint (4) lower extreme and conveyer belt (1), the one end slidable mounting that splint (4) kept away from each other has arc magnetic connection board (5), the one end middle part that arc magnetic connection board (5) kept away from each other is equal fixed mounting have square telescopic link (6), the one end that square telescopic link (6) kept away from each other is equal fixed mounting have gear shaft (61), rotate on two gear shafts (61) and install crane (7), the middle part of the upper end of the lifting frame (7) is fixedly provided with a hydraulic cylinder (8), the middle part of the hydraulic cylinder (8) is fixedly connected with a bracket (2), a first spring (9) is sleeved on the outer side of the square telescopic rod (6), two ends of the first spring (9) are respectively fixedly connected with a gear shaft (61) and an arc magnetic connecting plate (5), one end, far away from each other, of the arc magnetic connecting plate (5) is attached with a magnetic frame (10), the upper end of the magnetic frame (10) is fixedly connected with the bracket (2), the arc magnetic connecting plate (5) and the magnetic frame (10) are magnetically adsorbed with each other, a first torsion spring (11) is sleeved on the outer side of the gear shaft (61), the upper side of the gear shaft (61) is provided with a rack (12) which is matched with each other, and the upper end of the rack (12) is fixedly arranged on the bracket (2);
The cleaning mechanism is further provided with a cleaning mechanism for cleaning dust and impurities on the surface of the near infrared hyperspectral system detection head (3), the cleaning mechanism comprises a magnetic bearing box (31) arranged at the right lower side of the near infrared hyperspectral system detection head (3), a rotating rod (32) is rotatably arranged in the middle of the inner bottom end of the magnetic bearing box (31), a winding roller (33) is fixedly arranged on the upper end of the rotating rod (32), a cleaning block (34) is fixedly arranged on the upper end of the winding roller (33), and a torsion spring III (35) is sleeved on the outer side of the rotating rod (32).
2. The device for detecting food-borne pathogenic bacteria according to claim 1, wherein the middle parts of the front ends of the clamping plates (4) are fixedly provided with a first transverse plate (13), the upper and lower staggered ends of the arc-shaped magnetic connecting plates (5) close to each other are fixedly provided with a second transverse plate (14), springs (15) are fixedly arranged between the first transverse plate (13) and the second transverse plate (14), and the middle parts of the right ends of the racks (12) are fixedly provided with top frames (16) corresponding to the clamping plates (4) on the left side.
3. The device for detecting food-borne pathogenic bacteria according to claim 1, wherein the middle parts of the ends of the clamping plates (4) close to each other are respectively provided with a pressing block (17) in a penetrating and sliding manner, the ends of the pressing blocks (17) far away from each other are respectively provided with a spring three (18) in an up-down symmetry manner, and the other ends of the springs three (18) are fixedly connected with the inside of the clamping plates (4).
4. The device for detecting food-borne pathogenic bacteria according to claim 1, wherein clamping strips (19) are symmetrically inserted into the upper and lower ends and the front and rear ends of the ends, close to each other, of the clamping plates (4), active air bags (20) are fixedly installed at the ends, far away from each other, of the pressing blocks (17), the active air bags (20) are communicated with passive air bags (21), and two ends of each passive air bag (21) are fixedly connected with the clamping strips (19) and the inside of the clamping plates (4) respectively.
5. The device for detecting food-borne pathogenic bacteria according to claim 1, wherein the push plates (22) are fixedly installed at the upper ends of the arc-shaped magnetic connecting plates (5), inclined blocks (23) are arranged on the sides, close to each other, of the push plates (22), guide rods I (24) are fixedly installed at the upper ends of the inclined blocks (23), connecting frames (26) are installed at the upper ends of the guide rods I (24) in a penetrating and sliding mode, the lower ends of the connecting frames (26) are fixedly connected with the lifting frames (7), springs IV (25) are sleeved on the outer sides of the guide rods I (24), and the upper ends and the lower ends of the springs IV (25) are fixedly connected with the connecting frames (26) and the inclined blocks (23) respectively.
6. The device for detecting food-borne pathogenic bacteria according to claim 2, wherein the gear shafts (61) are fixedly provided with bump wheels (27) at the ends far away from each other, bump rods (28) are arranged on the upper sides of the bump wheels (27), connecting shafts (29) are rotatably arranged on the front sides of the bump rods (28), the right ends of the connecting shafts (29) are fixedly arranged on the racks (12), and torsion springs II (30) are sleeved on the outer sides of the connecting shafts (29).
7. The device for detecting food-borne pathogenic bacteria according to claim 1, wherein a steel wire rope (36) is wound on the outer side of the wind-up roll (33), two ends of the steel wire rope (36) are fixedly connected with the wind-up roll (33) and the support (2) respectively, a guide rod II (37) is fixedly installed on the front end of the magnetic bearing box (31), the right end of the guide rod II (37) penetrates through and is slidably installed on the support (2), a limiting plate (38) is arranged on the right end of the support (2) in a butt joint mode corresponding to the guide rod II (37), and a magnetic plate (39) is fixedly installed on the upper end of the lifting frame (7) corresponding to the magnetic bearing box (31).
8. The method of claim 6, wherein the method further comprises the steps of:
step one, cleaning dust and impurities on the lower surface of a detection head (3) of a near infrared hyperspectral system through a cleaning mechanism;
Step two, clamping and lifting the melon and fruit food sample through the multi-angle detection mechanism, automatically overturning and rotating the melon and fruit food sample, and carrying out multi-angle detection on the melon and fruit food sample;
Step three, the arc-shaped magnetic connecting plates (5) are buffered when being moved close to each other through the push plates (22) and the inclined blocks (23);
Step four, extruding the active air bag (20) by the pressing block (17), so that gas in the active air bag (20) enters the passive air bag (21), and further pushing the upper, lower, front and rear clamping strips (19) to extend out of the clamping plate (4), and stably abutting and clamping two end parts of the melon and fruit food sample;
And fifthly, blocking the lug on the lug wheel (27) through the lug at the lower end of the lug rod (28), and driving the lug rod (28) to rotate on the connecting shaft (29) when two lugs are impacted, so as to compress the torsion spring II (30), and further, slowing down the rotating speed of the gear shaft (61) when the torsion spring I (11) is reset.
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| CN119470492B (en) * | 2025-01-15 | 2025-04-22 | 上海聚跃检测技术有限公司 | Detection device and detection method for gallium nitride semiconductor chip processing |
| CN120207948A (en) * | 2025-05-27 | 2025-06-27 | 江苏晟楠电子科技股份有限公司 | Fixed seat rotating mechanism for measuring plane display |
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| CN103398994A (en) * | 2013-07-22 | 2013-11-20 | 华南理工大学 | Food-borne pathogenic bacterium detection system and method based on high spectrum |
| CN112606570A (en) * | 2021-01-06 | 2021-04-06 | 南京包文果科技有限公司 | Device for automatically detecting melon and fruit maturity and spraying code identification by laser |
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| KR102815617B1 (en) * | 2022-05-10 | 2025-06-02 | 주식회사 마스터코리아 | Multifunctional portable multispectral fruit sugar content meter |
| CN116593390A (en) * | 2022-12-19 | 2023-08-15 | 常州工学院 | Circular fruit vegetables centre gripping detection device based on spectral technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103398994A (en) * | 2013-07-22 | 2013-11-20 | 华南理工大学 | Food-borne pathogenic bacterium detection system and method based on high spectrum |
| CN112606570A (en) * | 2021-01-06 | 2021-04-06 | 南京包文果科技有限公司 | Device for automatically detecting melon and fruit maturity and spraying code identification by laser |
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