CN205694972U - Egg based on machine vision is to targeting to cleaning and sterilization coating device - Google Patents

Egg based on machine vision is to targeting to cleaning and sterilization coating device Download PDF

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Publication number
CN205694972U
CN205694972U CN201620193835.8U CN201620193835U CN205694972U CN 205694972 U CN205694972 U CN 205694972U CN 201620193835 U CN201620193835 U CN 201620193835U CN 205694972 U CN205694972 U CN 205694972U
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China
Prior art keywords
egg
cleaning
machine vision
targeting
torr
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CN201620193835.8U
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Chinese (zh)
Inventor
王树才
王巧华
祝志慧
熊利荣
吴兰兰
徐胜勇
卫佳
陶凯
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Huazhong Agricultural University
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Huazhong Agricultural University
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Abstract

This utility model relates to egg washing technical field, especially relates to egg based on machine vision to targeting to cleaning and sterilization coating device.This utility model uses the position of spot on machine vision device ONLINE RECOGNITION eggshell, by the computer image information to egg, transporting velocity information and the comprehensive of rotation information are analyzed and process, further determine that the position of dirty egg and dirty some region on eggshell, and as targeting, then control the pin mouth shower nozzle dirty point on dirty egg by PLC and target is sprayed high-efficiency washing antibacterial, optionally single targeting egg spray clear water is rinsed from production line, after air knife drying and ultraviolet irradiation-sterilize, cleaned targeting egg orientation is smeared protecting film, the egg that surface is clean then blows floating dust and the ultraviolet sterilization of eggshell surface off merely through air knife, it is not carried out and film.This invention can avoid egg all to clean, and damaged big, sterilizing detergent for cleaning consumption is big, the problems such as water consumption is big.

Description

Egg based on machine vision is to targeting to cleaning and sterilization coating device
Technical field
The present invention relates to egg washing technical field, especially relate to egg based on machine vision To targeting to cleaning and sterilization coating device.
Background technology
Egg is requisite Main Foods in huge numbers of families' daily life.At present, on market The fresh hen egg of more than 90% is egg of raising in cages, and after cage bird is laid eggs, egg rolls out from cage bottom, one As surface ratio cleaner;But, owing to cultivating condition difference, chicken and egg individuality there are differences, And various random accidentally factor, still there is a small amount of egg surface adhesion chicken manure, chicken feather, blood stains, The fouls such as feedstuff, affect egg outward appearance and storage time, even carry H7N9, Salmonella, The sex pheromones such as escherichia coli.For the fresh hen egg to market supply clean hygiene, it is right to need " dirty egg " is carried out.
Three kinds of modes are currently mainly had to provide fresh hen egg, one to be to use machinery clear to market Wash mode, such as American cleaning, i.e. use film scheme of cleaning, after egg output, immediately Enter and clean link, be equipped with appropriate abluent with warm water, use hairbrush to clean eggshell surface dirty, Then dry, ultraviolet sterilization, then one layer of white oil of film or other liniment carry out fresh-keeping and anti- Only microorganism invades.And for example disclosed " the machine of Chinese patent (patent No.: 200810048380.0) The method and apparatus of tool wet rubbing cleaning poultry eggs ".Above-mentioned cleaning way or there is cleaning equipment cost The deficiency high, equipment investment is big, or have that abluent consumption is big, water consumption big, cleaning efficiency , the most all there is the deficiency of certain broken rate of eggshell in the highest deficiency.Another kind is direct The method using manual cleaning fresh hen egg, exists that cleaning efficiency is low, clean deficiency costly, Small business of China and individual raiser etc. adopt in this way.It is European for also having one Clean egg technique, emphasizes strictly to control the welfare condition of breeding environment and chicken in cultivating link, to protect The egg eggshell surface clean hygiene of card output, does not allow to be carried out egg, utilizes chicken to produce Chicken is realized from urodaeum themselves at one layer of biological waxiness and the lysozyme of eggshell surface during egg Egg fresh-keeping and prevent microorganism from invading, this scheme is to poultry farming environmental requirement height, automatization Degree is high, and culture benefit is poor, for egg such to China consumes big country, and this cultivation side Formula will be difficult to supply market fresh hen egg demand.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides egg based on machine vision to targeting To cleaning and sterilization coating device, have that abluent consumption is few, water consumption is few, broken rate of eggshell is The feature of zero.
The technical solution used in the present invention is: target directional cleaning is killed by egg based on machine vision Bacterium coating device, including egg conveyer device, air-dry apparatus, ultraviolet sterilization apparatus, orientation Sprayed coating film device and frame, described egg conveyer device includes that two are separately positioned on frame two The chain of side and multiple for driving the sprocket wheel of chain, and many two ends are all connected with chain Torr egg roll shaft and multiple torr egg roller, many described torr egg roll shafts are placed equidistant on chain, every The most equidistantly being provided with multiple torr egg roller on torr egg roll shaft, described air-dry apparatus, ultraviolet sterilization fill Put be fixedly installed on successively in frame along egg conveying direction with directional spray coating device and Be respectively positioned on torr egg roller above, it is characterised in that: before also including being respectively positioned on described air-dry apparatus and The machine vision device that is fixedly installed on successively in frame along egg carriage direction, clear to target spray Wash sterilizing unit and clear water flusher, and two toothed rack, multiple be all meshed with tooth bar Gear, it is connected with rotary encoder for the rotary encoder detecting transportation sprocket rotating speed PLC, two described tooth bars are separately positioned on the both sides of frame, and multiple described gears are equal It is separately mounted to hold in the palm the two ends of egg roll shaft;
Described machine vision device include the CCD camera for gathering egg picture signal and to CCD camera provides the light source of illumination, and described CCD camera and light source are all fixedly mounted in frame, The signal output part of described CCD camera is connected with computer through data acquisition line concentration;
Described include target cleaning showers sterilizing unit being arranged on below frame detergent container, Drain pipe, the circulating pump being connected with the drain pipe other end that one end is connected with detergent container, set There are the catheter of multiple liquid outlet, multiple pin mouth shower nozzle being equipped with electromagnetic valve, described drain The two ends of pipe are connected with circulating pump and detergent container respectively, and the inlet of described electromagnetic valve is equal Being connected with the liquid outlet of catheter, the liquid outlet of each described pin mouth shower nozzle is arranged at correspondence Above torr egg roller, the signal input part of each described electromagnetic valve is all by control signal output lead It is connected with PLC;
Described clear water flusher includes multiple spray nozzle being all connected with clear water electromagnetic valve, often The outlet of individual described spray nozzle is all correspondingly arranged at the top of torr egg roller, each described clear water Electromagnetic valve is all connected with PLC.
As preferably, described air-dry apparatus includes that multiple air knife, each described air knife all correspondences set Put above torr egg roller.
As preferably, described ultraviolet sterilization apparatus includes multiple Burdick lamp, each described purple Outside line lamp is all correspondingly arranged at the top of torr egg roller.
As preferably, described directional spray coating device includes that film case and multiple being arranged at are coated with Liniment shower nozzle in film case, each described liniment shower nozzle is all correspondingly arranged at the upper of torr egg roller Side.
As preferably, described machine vision device also includes that at least two opens connecing of CCD camera Nearly switch, described proximity switch is arranged in frame.
As preferably, one end of described catheter is connected with detergent container by crossing overflow valve.
As preferably, described target cleaning showers sterilizing unit and clear water flusher are all included many Sheet baffle plate, baffle plate described in multi-disc lays respectively between the adjacent torr egg roller on every torr egg rod axle.
As preferably, described PLC is connected with computer through data telecommunication line.
The present invention obtains and provides the benefit that: the present invention uses machine vision device ONLINE RECOGNITION dirty Dirty area size in dirty egg and dirty egg and position, controlled by computer and PLC Image information, transmission information and the rotary speed information of egg are comprehensively analyzed and process by device, will Dirty region in the dirty egg determined and dirty egg is classified as targeting, is then controlled by PLC Device processed controls pin mouth shower nozzle and target is sprayed high-efficiency washing antibacterial (hydrogen peroxide etc.), with to dirty The dirty region of egg carries out sterilization and cleans, and optionally to single targeting chicken from production line Egg carries out clear water flushing, air knife drying and ultraviolet irradiation-sterilize, to cleaned targeting egg Orientation smears protecting film, and the egg clean to surface then blows the floating of eggshell surface off merely through air knife Dirt and ultraviolet sterilization, do not carry out sterilization and clean and clean water and film.The present invention can avoid Egg all cleans that the abluent consumption of existence is big, water consumption big, the damaged problem such as big.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the machine vision device structural representation of Fig. 1;
Fig. 4 be Fig. 1 to target cleaning showers sterilizing unit schematic diagram;
Fig. 5 is the logistics schematic diagram of the present invention;
Fig. 6 is the flow of information schematic diagram of the present invention.
In figure: 1, computer, 2, data telecommunication line, 3, PLC, 4, data acquisition Line concentration, 5, rotary encoder, 6, proximity switch, 7, chain, 8, tooth bar, 9, gear, 10, torr egg roller, 11, torr egg roll shaft, 12, egg, 13, CCD camera, 14, light source, 16, control signal output lead, 17, cleaning and sterilization agent, 18, detergent container, 19, feed liquor Pipe, 20, circulating pump, 21, drain pipe, 23, electromagnetic valve, 24, pin mouth shower nozzle, 25, Overflow valve, 26, sprocket wheel, 27, frame, 28, spray nozzle, 29, air knife, 30, ultraviolet Line lamp, 31, film case, 32, liniment shower nozzle, 33, baffle plate.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
As shown in Figure 1-2, a kind of egg based on machine vision is to targeting to cleaning and sterilization film Device, the egg conveyer device including frame 27 and being successively set in frame, machine vision Device, target cleaning showers sterilizing unit, clear water flusher, air-dry apparatus, ultraviolet are killed Bacterium device and directional spray coating device, machine vision device, to target cleaning showers sterilizing unit, Clear water flusher, air-dry apparatus, ultraviolet sterilization apparatus and directional spray coating device are successively Across on egg conveyer device.
Frame 27 both sides are provided with the chain 7 for transmitting egg, frame 27 along conveying direction Both sides are fixed with the sprocket wheel 26 driving chain 7, and the bearing pin of each chain 7 is equipped with torr Egg roll shaft 11, every torr egg roll shaft 11 is equidistantly provided with torr egg roller 10, in the middle of torr egg roller 10 It is provided with the groove holding egg 12;Transportation sprocket 26 section direction is provided with and is installed on frame 27 On rotary encoder 5, rotary encoder 5 is by data acquisition line concentration 4 and PLC 3 Connect, be used for collecting sprocket wheel 26 rotation information, monitor the anglec of rotation position of egg 12 further Put;Frame 27 is provided with tooth bar 8 along conveying direction, torr egg roll shaft 11 two ends set be provided with The gear 9 that tooth bar 8 is meshed, when torr egg roll shaft 11 edge transmission side under the traction of chain 7 When motion, the gear 9 at its two ends engages each other with tooth bar 8, drives torr egg roll shaft 11 to revolve Turn so that be placed on torr egg roller 10 on egg 12 under the effect of frictional force, also with one Rise and rotate, then by rotary encoder 5, the rotating signal of egg 12 is transferred to PLC and controls In device 3 processed.
Shown in Fig. 3, machine vision device includes CCD camera 13 and light source 14, machine Sighting device is across in frame 27, and the both sides of frame 27 are mounted on believing for egg image Number CCD camera 13 gathered and trigger CCD camera 13 and gather the proximity switch 6 of image, machine The light source 14 that illumination is provided also it is fixed with to CCD camera 13 on frame 27;When egg carries During to figure acquisition zone, gear 9 is close with the proximity switch 6 in frame 27, triggers CCD Camera 13 shoots a two field picture, and CCD camera 13 is to each egg respectively from oblique upper, left and right even The continuous every half-twist of 4 two field pictures, i.e. egg that gathers shoots a two field picture, by taken Image, in data acquisition line concentration 4 is transferred to computer 1, then uses image processing techniques identification And combine the rotating speed of sprocket wheel 26 and the coding information of rotary encoder 5, identify egg 12 is whether It is subject to " pollution " and remembers dirty egg 12 and dirty area size and position.
Shown in Fig. 4, to target cleaning showers sterilizing unit across in frame 27, including Electromagnetic valve 23 and pin mouth shower nozzle 24, the end of electromagnetic valve 23 is provided with pin mouth shower nozzle 24, In to target cleaning showers sterilizing unit pin mouth shower nozzle 24 above egg 12 along long axis direction (vertical with egg direction of advance) arranges three pieces of pin mouth shower nozzles 24, exists along egg 12 direction of advance Eight pieces of pin mouth shower nozzles, the top that i.e. one piece of egg rotates a circle it is uniformly distributed on whole egg equatorial perimeter 24 pieces of pin mouth shower nozzles 24, each pin mouth shower nozzle are had to be connected to it on electromagnetic valve by one 23 control its break-make, control electromagnetic needle by PLC 3 through control signal output lead 16 Valve 23;To in target cleaning showers sterilizing area, the lower section of frame 27 is provided with detergent container 18, Detergent container 18 is connected with circulating pump 20 by feed tube 19, and circulating pump 20 is by going out liquid Pipe 21 is connected with electromagnetic valve 23, and the end of drain pipe 21 is back to after overflow valve 25 In detergent container 18, constitute liquid stream loop, detergent container 18 built with abluent be Strong bactericidal agent (hydrogen peroxide etc.).When the egg 12 surface blot information that Machine Vision Detection arrives, The coding information of integrated rotary encoder device 5, the rotating speed of sprocket wheel 26 and the image information of collection, Calculate electromagnetic valve 23 and spray delay time, when the spot point on a certain piece of egg 12 is the most right Accurate a certain pin mouth shower nozzle 24 or when a certain shower nozzle is nearest, corresponding electromagnetic valve 23 is opened, to Spot point sprays a certain amount of potent cleaning and sterilization agent, for prevent around other egg 12 also by Spray arrives, and often arranges and be provided with baffle plate 33 between egg 12 in frame 27.
Clear water flusher is across in frame 27, including spray nozzle 28, spray nozzle 28 For arc clear water spray nozzle, all pacify along egg 12 direction of advance above every piece of egg 12 Fill two spray nozzles 28, when the egg 12 of spray over cleaning antibacterial arrives first spray During shower nozzle 28, the coding information of integrated rotary encoder device 5, the rotating speed of sprocket wheel 26 and collection Image information, computer 1 calculating processes, and PLC 3 controls two spray nozzles 28 Open or close, it is ensured that the egg complete cycle of spray over cleaning antibacterial can be flushed to by clear water, For preventing other egg 12 to be around also washed into, frame 27 is often arranged between egg 12 Baffle plate 33 is installed.
Along egg 12 conveying direction, after clear water flusher, it is provided with air blade device, wind Knife system is across in frame 27, and air blade device is provided with air knife 29, the air outlet of air knife 29 It is in the top of egg 12, for air-drying cleaned egg 12, to unwashed egg 12, Blown off the floating dust of eggshell surface by air knife 29.
Along egg conveying direction, after air-dry apparatus, it is provided with ultraviolet sterilization apparatus, ultraviolet Line sterilizing unit includes three quartz burners 30, when all egg 12 is through quartz burner Ultraviolet irradiation to its doses time below 30, kills harmful microorganism.
Along egg conveying direction, after ultraviolet sterilization apparatus, it is provided with directional spray film Device, directional spray coating device includes film case 31, film case 31 is provided with liniment Shower nozzle 32, is respectively provided with a liniment shower nozzle 32 above every piece of egg 12, with compression sky Liniment in the method atomization film case 31 of gas, spray solenoid valve controls liniment shower nozzle 32 Opening and closing, when arriving below liniment shower nozzle 32 through the egg of over cleaning, computer 1 is combined Close the coding information of rotary encoder 5, the rotating speed of sprocket wheel 26 and the image information of collection, right Carry out coating preservation through the egg 12 of over cleaning, clean egg 12 be not carried out and Coating problems, blows floating dust, ultraviolet radiation sterilizing off only with air knife 29.
Shown in Fig. 5-6, use the egg based on machine vision of said apparatus that target is cleaned Sterilization coating method: comprise the following steps:
A, by the egg 12 of unprocessed mistake successively be placed on torr egg roller 10 on, at sprocket wheel 26 Driving under, chain 7 drives egg 12 at the uniform velocity to transmit on egg vehicle, exists simultaneously Under the effect of gear 9 and tooth bar 8, egg 12 rotates on egg vehicle, and PLC controls Device 3 detects the velocity of rotation of egg 12 by rotary encoder 5;
B, when egg 12 enters in machine vision device, torr egg roller 10 lower end gear 8 Close with proximity switch 6, trigger CCD camera 13 and shoot egg 12 image, by collect Picture signal is input in computer 1, and is analyzed image processing, by PLC control Transmission speed, the rotary speed of egg 12 of egg 12 are analyzed processing by device 3, determine The size in dirty egg 12 and dirty region and its position on eggshell;
C, after step B image acquisition, egg 12 enter immediately to target cleaning showers sterilize Device, when the dirty dirty face of egg 12 is in below pin mouth shower nozzle 24, opens and sprays target Electromagnetic valve 23 in cleaning and sterilization device, by pin mouth shower nozzle 24 to dirty egg 12 Dirty region carries out sterilization and cleans, and clean egg 12 is not carried out, PLC 3 The position carrying out the egg 12 that sterilization is cleaned is tracked;
D, through step C sterilization clean after, egg 12 enter immediately to target cleaning showers sterilize Device, when being in below spray nozzle 28 through the cleaned egg 12 that sterilizes, opens clear water Electromagnetic valve, carries out clear water flushing by spray nozzle 28 to through the cleaned egg 12 that sterilizes;
E, after D step is rinsed, egg 12 enters air-dry apparatus immediately, opens and air-dries dress Put interior air knife 29, carry out wind to through the egg 12 that sterilizing detergent for cleaning cleans and clear water is flushed Dry, to not blowing eggshell surface off through the egg 12 that sterilizing detergent for cleaning cleans and clear water is flushed Floating dust;
F, through E step air-dry after, egg 12 enters ultraviolet sterilization apparatus immediately, through purple Burdick lamp 30 in outside line sterilizing unit irradiates, and carries out ultraviolet sterilization;
G, after F step ultraviolet sterilization, egg enters directional spray coating device immediately, In directional spray coating device, when cleaned egg 12 is through liniment shower nozzle 32, It is carried out sprayed coating film, do not have cleaned egg 12 then normal through, i.e. obtain finished product Egg.

Claims (8)

  1. null1. egg based on machine vision is to targeting to cleaning and sterilization coating device,Including egg conveyer device、Air-dry apparatus、Ultraviolet sterilization apparatus、Directional spray coating device and frame (27),Described egg conveyer device includes two chains (7) being separately positioned on frame (27) both sides and multiple for driving the sprocket wheel (26) of chain (7),And torr egg roll shaft (11) that is all connected with chain (7) of many two ends and multiple torr egg roller (10),Many described torr egg roll shaft (11) are placed equidistant on chain (7),Multiple torr egg roller (10) the most equidistantly it is provided with on every torr egg roll shaft (11),Described air-dry apparatus、Ultraviolet sterilization apparatus and directional spray coating device are fixedly installed on frame (27) successively along egg (12) conveying direction and above and are respectively positioned on torr egg roller (10) top,It is characterized in that: before also including being respectively positioned on described air-dry apparatus and along egg (12) carriage direction, be fixedly installed on the machine vision device in frame (27) successively、To target cleaning showers sterilizing unit and clear water flusher,And two toothed rack (8)、Multiple gears (9) being all meshed with tooth bar (8)、For detecting the rotary encoder (5) of transportation sprocket (26) rotating speed、The PLC (3) being connected with rotary encoder (5),Two described tooth bars (8) are separately positioned on the both sides of frame (27),Multiple described gears (9) are arranged on the two ends of torr egg roll shaft (11) respectively;
    Described machine vision device includes the CCD camera (13) for gathering egg (12) picture signal and provides the light source (14) of illumination to CCD camera (13), described CCD camera (13) and light source (14) are all fixedly mounted in frame (27), and the signal output part of described CCD camera (13) is connected with computer (1) through data acquisition line concentration (4);
    nullThe described detergent container (18) including target cleaning showers sterilizing unit being arranged on frame (27) lower section、The drain pipe (19) that one end is connected with detergent container (18)、The circulating pump (20) being connected with drain pipe (19) other end、It is provided with the catheter (21) of multiple liquid outlet、Multiple pins mouth shower nozzle (24) being equipped with electromagnetic valve (23),The two ends of described catheter (21) are connected with circulating pump (20) and detergent container (18) respectively,The inlet of described electromagnetic valve (23) all liquid outlets with catheter (21) are connected,The liquid outlet of each described pin mouth shower nozzle (24) is arranged at torr egg roller (10) top of correspondence,The signal input part of each described electromagnetic valve (23) is all connected with PLC (3) by control signal output lead (16);
    Described clear water flusher includes multiple spray nozzle (28) being all connected with clear water electromagnetic valve, the outlet of each described spray nozzle (28) is all correspondingly arranged at the top of torr egg roller (10), and each described clear water electromagnetic valve is all connected with PLC (3).
  2. Egg based on machine vision the most according to claim 1 is to targeting to cleaning and sterilization coating device, it is characterized in that: described air-dry apparatus includes multiple air knife (29), each described air knife (29) is all correspondingly arranged at the top of torr egg roller (10).
  3. Egg based on machine vision the most according to claim 1 is to targeting to cleaning and sterilization coating device, it is characterized in that: described ultraviolet sterilization apparatus includes multiple Burdick lamp (30), each described Burdick lamp (30) is all correspondingly arranged at the top of torr egg roller (10).
  4. Egg based on machine vision the most according to claim 1 is to targeting to cleaning and sterilization coating device, it is characterized in that: described directional spray coating device includes film case (31) and multiple liniment shower nozzle (32) being arranged in film case (31), each described liniment shower nozzle (32) is all correspondingly arranged at the top of torr egg roller (10).
  5. 5. according to the egg based on machine vision described in any one of claim 1-4 to targeting to cleaning and sterilization coating device, it is characterized in that: described machine vision device also includes that at least two opens the proximity switch (6) of CCD camera (13), and described proximity switch (6) is arranged in frame (27).
  6. Egg based on machine vision the most according to claim 5 is to targeting to cleaning and sterilization coating device, it is characterised in that: one end of described catheter (21) is connected with detergent container (18) by crossing overflow valve (25).
  7. Egg based on machine vision the most according to claim 6 is to targeting to cleaning and sterilization coating device, it is characterized in that: described target cleaning showers sterilizing unit and clear water flusher are all included multi-piece baffle plate (33), baffle plate (33) described in multi-disc lays respectively between adjacent torr egg roller (10) on every torr egg roll shaft (11).
  8. Egg based on machine vision the most according to claim 7 is to targeting to cleaning and sterilization coating device, it is characterised in that: described PLC (3) is connected with computer (1) through data telecommunication line (2).
CN201620193835.8U 2016-03-11 2016-03-11 Egg based on machine vision is to targeting to cleaning and sterilization coating device Withdrawn - After Issue CN205694972U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620193835.8U CN205694972U (en) 2016-03-11 2016-03-11 Egg based on machine vision is to targeting to cleaning and sterilization coating device

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Application Number Priority Date Filing Date Title
CN201620193835.8U CN205694972U (en) 2016-03-11 2016-03-11 Egg based on machine vision is to targeting to cleaning and sterilization coating device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106694435A (en) * 2016-12-29 2017-05-24 茂名市鹿缘农业发展有限公司 Cornu cervi pantotrichum cleaning device
EP3354131A1 (en) * 2017-01-27 2018-08-01 Sanovo Technology A/S Apparatus and method for washing shell eggs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106694435A (en) * 2016-12-29 2017-05-24 茂名市鹿缘农业发展有限公司 Cornu cervi pantotrichum cleaning device
EP3354131A1 (en) * 2017-01-27 2018-08-01 Sanovo Technology A/S Apparatus and method for washing shell eggs
WO2018138339A1 (en) * 2017-01-27 2018-08-02 Sanovo Technology A/S An apparatus and method for washing shell eggs
CN110290699A (en) * 2017-01-27 2019-09-27 塞诺沃科技有限公司 For cleaning the device and method of shell egg
US11259505B2 (en) 2017-01-27 2022-03-01 Sanovo Technology A/S Apparatus and method for washing shell eggs
CN110290699B (en) * 2017-01-27 2022-07-19 塞诺沃科技有限公司 Apparatus and method for washing shell eggs

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