Optical grain mould detection equipment

Abstract

The utility model relates to optical grain mould detection equipment. The optical grain mould detection equipment structurally comprises a material barrel, a grinding mechanism, a buffer discharging device and a fluorescence detection unit, the material barrel is provided with a feeding port and a discharging port, so that feeding and discharging of materials are facilitated; the grinding mechanism comprises a fixed grinding sleeve and a movable grinding roller, and the fixed grinding sleeve and the movable grinding roller form a precise grinding gap, so that uniform refining of materials in the grinding process is ensured; the buffer discharging device comprises a discharging cavity, a movable discharging disc and a pressing disc, and the material flow speed is effectively adjusted; the fluorescence detection unit is used for efficiently detecting mould in the material through a fluorescent lamp column and a spectrum acquisition plate; the rotating motor drives the movable grinding roller to rotate, so that automatic operation is realized; the equipment is exquisite in design and comprehensive in function, and a convenient and efficient solution is provided for mould detection.

Description

Technical Field

[0001] The utility model relates to an optical grain mold detection device, belonging to the field of grain detection equipment. Background Art

[0002] The surface of grains may produce mold spots due to Aspergillus flavus, Aspergillus ochraceus, etc., and the mold spots will be rich in aflatoxins and ochratoxins produced by Aspergillus flavus and Aspergillus ochraceus; therefore, it is necessary to conduct relevant tests on the grains in advance. In the existing technology, the detection of grains is mainly carried out by soaking or grinding the grains to separate the test samples, and the test samples are tested and analyzed by various analytical methods; however, because the location of the moldy grains is relatively random, and because the test samples in the existing methods require the grains to be soaked or ground, currently only random sampling of grains can be carried out, and large quantities of grains cannot be fully inspected. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the technical problems in the prior art and provide an optical grain mold detection device.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An optical grain mold detection device; comprising:

[0006] A material barrel, wherein a feed port is arranged on a side wall at one axial end of the material barrel, and a discharge port is arranged on the other axial end of the material barrel;

[0007] The grinding mechanism comprises a fixed grinding sleeve coaxially fixed in the material barrel, the fixed grinding sleeve is a transparent structure, the inner wall of the fixed grinding sleeve is provided with a spiral outer grinding protrusion, the grinding assembly also comprises a movable grinding roller rotatably connected in the material barrel, one end of the movable grinding roller is rotatably connected to the end of the material barrel facing the feed port, a spiral inner grinding protrusion is provided on the outer wall of the movable grinding roller, and the surface of the inner grinding protrusion is covered with a reflective layer; a grinding gap connected with the feed port and the discharge port is provided between the inner grinding protrusion and the outer grinding protrusion;

[0008] The buffer discharge mechanism is arranged at the discharge port, and includes a discharge cavity fixed to the axial end of the material barrel, and a discharge hole is arranged on the side wall of the discharge cavity; the buffer discharger also includes a movable discharge plate fixed to the end of the movable grinding roller, the movable discharge plate is located at the end of the discharge cavity, and a plurality of guide blades with arc-shaped convex structures are arranged on the surface of the movable discharge plate; the buffer discharge mechanism also includes a pressure plate arranged at the front end of the discharge cavity, the inner ring of the pressure plate is in sliding sealing contact with the outer ring of the end of the movable grinding roller, and a friction layer is arranged on the surface of the pressure plate;

[0009] The fluorescence detection mechanism includes a plurality of fluorescent lamp posts and a spectrum collection board embedded between the material barrel and the fixed grinding sleeve, and the fluorescent lamp posts and the spectrum collection board are arranged crosswise, wherein the fluorescent lamp posts include a light guide post and a fluorescent lamp post embedded at the end of the fluorescent lamp post, and the spectrum collection board includes a light guide plate, in which a light guide optical fiber is embedded, and the light guide optical fiber is connected to a fiber optic spectrometer;

[0010] A rotating motor is fixed at one end of the material barrel, and a motor shaft of the rotating motor passes through the end of the material barrel and is connected to the moving grinding roller.

[0011] As a further improvement of the utility model, it also includes an airflow mechanism, which includes a main air inlet pipe connected to the outside of one end of the material barrel, and a secondary air inlet pipe extending toward the inside of the material barrel is coaxially fixed at one end of the material barrel, and the dynamic grinding roller is a hollow structure, and the outer side of the secondary air inlet pipe is in sliding and sealing contact with the hollow inner wall of the dynamic grinding roller; wherein a plurality of air outlet holes are arranged in an array on the surface of the dynamic grinding roller; wherein the motor is fixed to one axial end of the main air inlet pipe, and the motor shaft of the motor passes through the main air inlet pipe, the secondary air inlet pipe, and the dynamic grinding roller in sequence and is connected to the hollow end portion of the dynamic grinding roller; the airflow mechanism can blow the particles falling off the surface of the grain into the gap between the dynamic grinding roller and the fixed grinding sleeve, thereby further improving the efficiency of fluorescent irradiation.

[0012] As a further improvement of the utility model, a partition sheet is fixed in the main air inlet duct, and the motor shaft of the motor is rotationally connected to the partition sheet.

[0013] As a further improvement of the present invention, the outer ring array of the pressing plate is provided with a plurality of connecting ears, and the inner wall ring array of the discharging cavity is provided with a plurality of sliding grooves, the connecting ears are slidably connected in the sliding grooves, and a first supporting spring for pushing the pressing plate toward the movable discharging plate is provided between the connecting ears and one end of the sliding groove; the pressing plate uses an elastic connection to ensure that the grain is tightened between the pressing plate and the movable discharging plate, thereby improving the buffering discharging efficiency of the grain.

[0014] As a further improvement of the present invention, the discharge chamber includes a discharge shell, which is fixedly connected to the end of the material barrel by a connecting flange. The aforementioned sliding groove is open at the end face of the connecting flange, and a guide pin is embedded in the sliding groove. The connecting ear is slidably connected to the guide pin, and the support spring is sleeved on the guide pin; the guide pin can improve the stability of the elastic floating structure.

[0015] As a further improvement of the utility model, a push column is fixed at the end of the discharge chamber by a thread; a transmission groove is arranged at the hollow end of the movable grinding roller, the end of the motor shaft is slidably connected with the transmission groove by a sliding keyway structure, and a second support spring is arranged between the end of the motor shaft and the end of the transmission groove; the lateral spacing between the movable grinding roller and the protrusion of the fixed grinding sleeve can be conveniently adjusted by the push column to conveniently adapt to the use of grains with different particle sizes.

[0016] As a further improvement of the present invention, the fluorescence detection mechanism also includes a holder made of light-blocking material, in which an inlay groove is provided, and the light guide column and light guide plate array are inlaid in the inlay groove; the holder can facilitate the disassembly and maintenance of the optical structure.

[0017] As a further improvement of the utility model, one end of the material barrel corresponding to the discharge port is connected to a tail cover plate through a flange, the rotating motor is connected to the tail cover plate, and the end of the fixed grinding sleeve is fixed to the tail cover plate through a connecting ring.

[0018] The beneficial effects of the utility model are:

[0019] The utility model realizes mutual squeezing of grains and squeezing of the surfaces of the moving grinding roller and the fixed grinding sleeve by the grains through the combined structure of a dynamic and static combined moving grinding roller and a fixed grinding sleeve, and utilizes the differential rotation of the moving grinding roller and the fixed grinding sleeve. In the process of mutual squeezing of grains, the grain surface objects are peeled off, and the peeled particles can be quickly monitored in real time by a fluorescence detection mechanism, so that the virus content in the peeled particles can be detected quickly and conveniently. The buffer discharge mechanism arranged at the front can reduce the extrusion speed of grain particles, increase the discharge resistance of grains, ensure the accumulation amount of grains between the moving grinding roller and the fixed grinding sleeve, and ensure the squeezing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the movable discharging tray;

[0023] Figure 3 It is a structural schematic diagram of the pressing plate;

[0024] Figure 4 It is a cross-sectional schematic diagram of the cage.

[0025] In the figure: 1. material barrel; 2. main air inlet pipe; 3. motor; 4. motor shaft; 5. tail cover; 6. auxiliary air inlet pipe; 7. dynamic grinding roller; 8. inner grinding protrusion; 9. hollow cavity; 10. air outlet; 11. fixed grinding sleeve; 12. outer grinding protrusion; 13. pressing plate; 14. friction layer; 15. dynamic discharge plate; 16. push column; 17. material guide paddle; 18. discharge pipe; 19. fluorescence detection mechanism; 20. feed pipe; 21. connecting sleeve; 22. connecting ear; 23. sliding groove; 24. discharge shell; 25. light guide sheet; 26. light guide column; 27. retaining frame. DETAILED DESCRIPTION

[0026] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0027] like Figure 1 , an optical grain mold detection device; comprising:

[0028] A material barrel, a feed port is arranged on the side wall of one axial end of the material barrel, a feed pipe penetrating the material barrel is arranged in the feed port, a discharge cavity is arranged on the other axial end of the material barrel, the discharge cavity includes a discharge shell, the discharge shell is fixedly connected to the end of the material barrel by a connecting flange, and a discharge pipe is connected to the side wall of the discharge shell;

[0029] The grinding mechanism comprises a fixed grinding sleeve coaxially fixed in the material barrel, the fixed grinding sleeve is a transparent structure, the inner wall of the fixed grinding sleeve is provided with a spiral outer grinding protrusion, the grinding assembly also comprises a movable grinding roller rotatably connected in the material barrel, one end of the movable grinding roller is rotatably connected to the end of the material barrel facing the feed port, a spiral inner grinding protrusion is provided on the outer wall of the movable grinding roller, and the surface of the inner grinding protrusion is covered with a reflective layer; a grinding gap connected with the feed port and the discharge port is provided between the inner grinding protrusion and the outer grinding protrusion, and the feed pipe penetrates into the grinding gap; a rotating motor is fixed at one end of the material barrel through a tail cover plate, and the motor shaft of the rotating motor passes through the end of the material barrel and is connected to the movable grinding roller;

[0030] The buffer discharge mechanism is arranged at the discharge port, and the buffer discharge mechanism includes a discharge cavity fixed to the axial end of the material barrel, and the side wall of the discharge cavity is provided with a discharge hole; the buffer discharger also includes a movable discharge plate fixed to the end of the movable grinding roller, and the movable discharge plate is located at the end of the discharge cavity, such as Figure 2 , a plurality of guide blades with arc-shaped convex structures are arranged on the surface of the movable discharge plate; the buffer discharge mechanism also includes a pressure plate arranged at the front end of the discharge cavity, and the inner ring of the pressure plate is in sliding sealing contact with the outer ring of the end of the movable grinding roller;

[0031] The fluorescence detection mechanism includes a plurality of fluorescent lamp posts and a spectrum collection board embedded between the material barrel and the fixed grinding sleeve, such as Figure 4 The fluorescence detection mechanism also includes a holder made of light-blocking material, in which an inlay groove is arranged, and the light guide column and the light guide plate cross array are inlaid in the inlay groove, wherein the fluorescent lamp column includes a light guide column and a fluorescent lamp column inlaid at the end of the fluorescent lamp column, and the spectrum collection board includes a light guide plate, in which a light guide optical fiber is inlaid, and the light guide optical fiber is connected to the optical fiber spectrometer.

[0032] It also includes an airflow mechanism, which includes a main air inlet pipe connected to the outside of one end of the material barrel, a connecting sleeve is provided on the side wall of the air inlet pipe, the connecting sleeve is connected to the air outlet part of the fan, and an auxiliary air inlet pipe extending toward the inside of the material barrel is coaxially fixed at one end of the material barrel, and the movable grinding roller is provided with a hollow cavity, and the outer side of the auxiliary air inlet pipe is in sliding and sealing contact with the inner wall of the hollow cavity of the movable grinding roller; wherein a plurality of air outlet holes are arranged in an array on the surface of the movable grinding roller; wherein the motor is fixed to one axial end of the main air inlet pipe, a partition plate is fixed in the main air inlet pipe, a motor shaft of the motor is rotatably connected to the partition plate, and the motor shaft of the motor passes through the main air inlet pipe, the auxiliary air inlet pipe, and the movable grinding roller in sequence and is connected to the end portion of the hollow cavity of the movable grinding roller.

[0033] Among them, Figure 3 A plurality of connecting ears are provided in an annular array on the outer ring of the pressing plate, and a plurality of sliding grooves are provided in an annular array on the inner wall of the discharging chamber. The connecting ears are slidably connected in the sliding grooves, and a first supporting spring for pushing the pressing plate toward the movable discharging plate is provided between the connecting ears and one end of the sliding grooves. A friction layer of rubber material is provided on the surface of the pressing plate, and the sliding groove is opened at the end face of the connecting flange. A guide pin is embedded in the sliding groove, and the connecting ears are slidably connected to the guide pins, and the supporting spring is sleeved on the guide pins; a front-end tapered push column is fixed by threads at the end of the discharging chamber; a transmission groove is provided at the hollow end of the movable grinding roller, and the end of the motor shaft is slidably connected to the transmission groove through a sliding keyway structure, and a second supporting spring is provided between the end of the motor shaft and the end of the transmission groove.

[0034] When in use, first adjust the relative positions of the inner and outer grinding protrusions of the movable grinding roller and the fixed grinding sleeve according to the particle diameter of the material through the push column; then start the motor and the fan, and the airflow passes through the main air inlet pipe, the auxiliary air inlet pipe, and the hollow cavity and is discharged from the air outlet; then start the motor and put the material in from the feed pipe, and the material rubs against each other under the relative extrusion of the inner and outer grinding protrusions, causing the surface of the material to fall off to a certain extent, and the fallen dust flows in the gap between the inner and outer grinding protrusions through the blowing of the air outlet in a fluidized state; at the same time, the fluorescence of the fluorescence detection mechanism is emitted through the light guide column and is discharged through the fixed The grinding sleeve irradiates the gap between the inner grinding protrusion and the outer grinding protrusion. After irradiating the dust, the fluorescence is reflected by the surface of the dynamic grinding roller and captured by the light guide plate, and then transmitted to the spectrum detector through the optical fiber for excited fluorescence spectrum detection; after the extrusion is completed, the material enters the discharge cavity, and then the material is clamped between the pressure plate and the dynamic discharge plate. The material passes through the guide blades on the surface of the dynamic discharge plate and the friction layer. The material is pushed out to the outer ring of the dynamic discharge plate by the rotating guide blades and finally discharged from the discharge pipe. The clamped pressure plate and the dynamic discharge plate reduce the discharge rate to prevent the material from being discharged too quickly and unable to fully realize mutual extrusion.

[0035] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An optical grain mold detection device; characterized in that: include: A material barrel, wherein a feed port is arranged on a side wall at one axial end of the material barrel, and a discharge port is arranged on the other axial end of the material barrel; The grinding mechanism comprises a fixed grinding sleeve coaxially fixed in the material barrel, the fixed grinding sleeve is a transparent structure, the inner wall of the fixed grinding sleeve is provided with a spiral outer grinding protrusion, the grinding assembly also comprises a movable grinding roller rotatably connected in the material barrel, one end of the movable grinding roller is rotatably connected to the end of the material barrel facing the feed port, a spiral inner grinding protrusion is provided on the outer wall of the movable grinding roller, and the surface of the inner grinding protrusion is covered with a reflective layer; a grinding gap connected with the feed port and the discharge port is provided between the inner grinding protrusion and the outer grinding protrusion; The buffer discharge mechanism is arranged at the discharge port, and the buffer discharge mechanism includes a discharge cavity fixed to the axial end of the material barrel, and the side wall of the discharge cavity is provided with a discharge hole; the buffer discharger also includes a movable discharge plate fixed to the end of the movable grinding roller, the movable discharge plate is located at the end of the discharge cavity, and a plurality of guide blades with arc-shaped convex structures are provided on the surface of the movable discharge plate; The buffer discharge mechanism also includes a pressing plate arranged at the front end of the discharge cavity, the inner ring of the pressing plate is in sliding sealing contact with the outer ring of the end of the dynamic grinding roller, and a friction layer is provided on the surface of the pressing plate; The fluorescence detection mechanism includes a plurality of fluorescent lamp posts and a spectrum collection board embedded between the material barrel and the fixed grinding sleeve, and the fluorescent lamp posts and the spectrum collection board are arranged crosswise, wherein the fluorescent lamp posts include a light guide post and a fluorescent lamp post embedded at the end of the fluorescent lamp post, and the spectrum collection board includes a light guide plate, in which a light guide optical fiber is embedded, and the light guide optical fiber is connected to a fiber optic spectrometer; A rotating motor is fixed at one end of the material barrel, and a motor shaft of the rotating motor passes through the end of the material barrel and is connected to the moving grinding roller.

2. The optical grain mold detection device according to claim 1, characterized in that: It also includes an airflow mechanism, which includes a main air inlet pipe connected to the outside of one end of the material barrel, and a secondary air inlet pipe extending toward the inside of the material barrel is coaxially fixed at one end of the material barrel, and the dynamic grinding roller is a hollow structure, and the outer side of the secondary air inlet pipe is in sliding and sealing contact with the hollow inner wall of the dynamic grinding roller; wherein a plurality of air outlet holes are arranged in an array on the surface of the dynamic grinding roller; wherein the motor is fixed to one axial end of the main air inlet pipe, and the motor shaft of the motor passes through the main air inlet pipe, the secondary air inlet pipe, and the dynamic grinding roller in sequence and is connected to the hollow end portion of the dynamic grinding roller.

3. The optical grain mold detection device according to claim 2, characterized in that: A partition sheet is fixed in the main air inlet pipe, and the motor shaft of the motor is rotationally connected to the partition sheet.

4. The optical grain mold detection device according to claim 1, characterized in that: The outer ring array of the pressure plate is provided with a plurality of connecting ears, and the inner wall ring array of the discharge cavity is provided with a plurality of sliding grooves. The connecting ears are slidably connected in the sliding grooves, and a first supporting spring is provided between the connecting ears and one end of the sliding groove to push the pressure plate toward the movable discharge plate.

5. The optical grain mold detection device according to claim 4, characterized in that: The discharge chamber includes a discharge shell, which is fixedly connected to the end of the material barrel through a connecting flange. The aforementioned sliding groove is open at the end face of the connecting flange, a guide pin is embedded in the sliding groove, the connecting ear is slidably connected to the guide pin, and the support spring is sleeved on the guide pin.

6. The optical grain mold detection device according to claim 1, characterized in that: A push column is fixed at the end of the discharge chamber by a thread; a transmission groove is arranged at the hollow end of the movable grinding roller, the end of the motor shaft is slidingly connected to the transmission groove by a sliding keyway structure, and a second support spring is arranged between the end of the motor shaft and the end of the transmission groove.

7. The optical grain mold detection device according to claim 1, characterized in that: The detection mechanism also includes a holder made of light-blocking material, in which an inlay groove is arranged, and the light guide column and the light guide sheet array are inlaid in the inlay groove.

8. The optical grain mold detection device according to claim 1, characterized in that: One end of the material barrel corresponding to the discharge port is connected to a tail cover plate through a flange, the rotating motor is connected to the tail cover plate, and the end of the fixed grinding sleeve is fixed to the tail cover plate through a connecting ring.

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