CN115193704B

CN115193704B - Appearance defect walnut detects and sorting facilities

Info

Publication number: CN115193704B
Application number: CN202210799271.2A
Authority: CN
Inventors: 徐道春; 王景巍; 胡晓照
Original assignee: Beijing Forestry University
Current assignee: Beijing Forestry University
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2023-07-14
Anticipated expiration: 2042-07-06
Also published as: CN115193704A

Abstract

The invention discloses appearance defect walnut detection and separation equipment, which comprises a feeding mechanism, a winnowing mechanism, a clamping conveying mechanism, a detection mechanism, a separation mechanism and a computer case, wherein the feeding mechanism, the winnowing mechanism, the clamping conveying mechanism, the detection mechanism, the separation mechanism and the computer case are arranged on a rack; the clamping and conveying mechanism comprises a rotating disc, a driving assembly and a clamping assembly; the detection mechanism comprises a camera bracket, an industrial camera and an annular light source; the sorting mechanism comprises a defective walnut sorting assembly and a normal walnut sorting assembly, the defective walnut sorting assembly comprises a second rotary power device, a second photoelectric sensor and a defective walnut discharging channel, the second rotary power device is connected with an eccentric block, a detection plate is arranged on the eccentric block, and the second photoelectric sensor is located on one side of the eccentric block and corresponds to the detection plate. The walnut detecting and sorting equipment with the appearance defects can improve the detection precision and sorting efficiency of walnut sorting procedures, and is stable in operation and high in accuracy.

Description

Appearance defect walnut detects and sorting facilities

Technical Field

The invention relates to the technical field of detection and separation equipment, in particular to walnut detection and separation equipment with appearance defects.

Background

Walnut is the most economic forest species in China, has very high nutritive value and commercial value, is always favored by people, and is usually mainly dried fruits and primary processed foods. In recent years, the walnut planting area and the walnut yield in China are the first world, the walnut export amount and the walnut export amount are increased year by year, and the improvement of the yield makes people have higher requirements on the walnut production efficiency.

The sorting of defective walnuts is one of important procedures in the walnut production process, most of the existing sorting procedures adopt assembly line manual sorting, the walnut with the defective appearance is removed, the manual sorting has the defects of low efficiency, low accuracy and the like, and the defects of part of walnuts are not obvious, are difficult to observe by human eyes and are easily ignored, so that the overall quality of walnut products is influenced. In order to realize the mechanized detection and separation of defective walnuts, a novel device is needed to be provided to improve the efficiency and accuracy of the detection and separation of defective walnuts.

Disclosure of Invention

The invention aims to provide the walnut detecting and sorting equipment with the appearance defects, which can improve the detection precision and sorting efficiency of walnut sorting procedures, and has stable operation and high accuracy.

In order to achieve the above purpose, the invention provides appearance defect walnut detecting and sorting equipment, which comprises a feeding mechanism, a winnowing mechanism, a clamping conveying mechanism, a detecting mechanism, a sorting mechanism and a computer case which are arranged on a frame, wherein the computer case is electrically connected with the winnowing mechanism, the clamping conveying mechanism, the detecting mechanism and the sorting mechanism, the feeding mechanism comprises a hopper, a material conveying plate and a feeding cylinder which are sequentially arranged on the frame, the bottom end of one side plate of the feeding cylinder is provided with a spring piece, the bottom end of one end plate of the feeding cylinder is connected with an L-shaped support plate, the bottom surface of the L-shaped support plate is provided with a U-shaped groove, the opening of the U-shaped groove is arranged towards the spring piece, the winnowing mechanism comprises a fan and a shrunken walnut discharging channel which are correspondingly arranged on two sides of the tail end of the material conveying plate, and the fan is electrically connected with the computer case;

the clamping and conveying mechanism comprises a rotating disc, a driving assembly and a clamp assembly, wherein the driving assembly is connected with the middle part of the bottom surface of the rotating disc, the clamp assemblies are uniformly distributed at the edge of the top surface of the rotating disc, the clamp assembly comprises an outer clamp and an inner clamp, the outer clamp is fixed on the rotating disc, the tail end of the outer clamp is provided with a bending part, a clamping position is formed between the bending part and the inner clamp, the inner clamp is movably connected with a linear guide rail fixed on the rotating disc, the top surface of the inner clamp is provided with a clamp stop block, and one end surface of the inner clamp, which is far away from the bending part, is connected with a spring stop block fixed on the rotating disc through a pressure spring;

the detection mechanism comprises a camera support, an industrial camera and an annular light source, the industrial camera is electrically connected with the computer case, the industrial camera is connected with the rack through the camera support, the annular light source is arranged at the periphery of a lens of the industrial camera, and the lens is correspondingly arranged with the clamping position;

the sorting mechanism is including setting gradually rotatory disc outlying defect walnut sorting unit and normal walnut sorting unit, defect walnut sorting unit includes second rotary power device, second photoelectric sensor and defect walnut discharging channel, second rotary power device with second photoelectric sensor all with computer machine case electricity is connected, second rotary power device is connected with the eccentric block, the eccentric block with clamp dog corresponds the setting, just be equipped with the detection board on the eccentric block, second photoelectric sensor is located one side of eccentric block and with the detection board corresponds the setting, defect walnut discharging channel's top with clamping position corresponds the setting, normal walnut sorting unit includes rotatory ejector pad and normal walnut discharging channel, rotatory ejector pad through rotatory ejector pad with the frame is connected, just rotatory ejector pad with clamp dog corresponds the setting, normal walnut discharging channel's top with clamping position corresponds the setting.

Preferably, the material conveying plate is provided with a triangular groove, the material conveying plate comprises a conveying section and a wind selecting section which are integrally connected, the wind selecting section is located below the conveying section, the top end of the conveying section corresponds to the bottom end of the hopper, the two sides of the conveying section are provided with protective edges, a baffle plate is arranged between the conveying section and the hopper, and the bottom end of the wind selecting section corresponds to the top end of the feeding barrel.

Preferably, the feeding mechanism further comprises a vibration exciter, the vibration exciter is fixed on the frame through a vibration exciter support plate, the vibration exciter is connected with the material conveying plate, and the vibration exciter is electrically connected with the computer case.

Preferably, the driving assembly comprises a first rotary power device, a speed reducer, a coupler and a disc transmission shaft which are sequentially connected from bottom to top, the first rotary power device is electrically connected with the computer case, the top of the disc transmission shaft is connected with the rotating disc through a connecting flange, the bottom of the disc transmission shaft is connected with the frame through a bearing seat, and a speed reducer support plate used for connecting and fixing the speed reducer is arranged at the bottom of the bearing seat.

Preferably, the bearing seat is provided with a first photoelectric sensor, the first photoelectric sensor is electrically connected with the computer case, the connecting flange is provided with a bending plate, and the bending plate is correspondingly arranged with the first photoelectric sensor.

Preferably, a limiting groove is formed in one side surface, far away from the outer clamp, of the inner clamp, and the limiting groove is arranged corresponding to a stop rod fixed on the rotating disc.

Preferably, the ends of the inner clamp and the bending part are provided with chamfers.

Preferably, two detection mechanisms are provided, and the two detection mechanisms are respectively positioned at the upper side and the lower side of the clamping and conveying mechanism.

Preferably, the camera support comprises a unit frame fixed on the stand, the unit frame is connected with a displacement platform through a camera support plate, and the displacement platform is connected with the industrial camera through a camera support plate.

Preferably, the side of frame is equipped with the backplate, one of them be equipped with on the backplate three respectively with the flat walnut discharge channel defective walnut discharge channel with the discharge gate that normal walnut discharge channel is connected, every discharge gate all corresponds and is provided with a collection box.

Preferably, the top of frame is equipped with the roof, be equipped with feed inlet, scram button, start button, trichromatic lamp and display on the roof, the feed inlet with the top of hopper is connected, scram button start button trichromatic lamp with the display all with the computer machine case electricity is connected, the backplate with all be equipped with the viewing aperture on the roof, be equipped with transparent acrylic board in the viewing aperture.

Preferably, the bottom of the frame is provided with a supporting plate, and the bottom surface of the supporting plate is provided with universal casters.

Preferably, the rotary pushing block is an external thread bearing.

Therefore, the walnut detecting and sorting equipment with the appearance defects can improve the detection precision and sorting efficiency of walnut sorting procedures, and is stable in operation and high in accuracy.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic view showing an embodiment of the internal structure of the walnut detecting and sorting apparatus with appearance defects according to the present invention;

FIG. 2 is a schematic diagram of an embodiment of the appearance defect walnut detecting and sorting apparatus of the present invention;

FIG. 3 is a schematic view of an embodiment of a feeding mechanism in the appearance defect walnut detecting and sorting apparatus of the present invention;

FIG. 4 is a schematic view of an embodiment of a sorting mechanism and clamp assembly in the appearance defect walnut detection and sorting apparatus of the present invention;

FIG. 5 is a schematic view of an embodiment of a drive assembly in an appearance defect walnut detection and sorting apparatus of the present invention;

fig. 6 is a schematic view of an embodiment of the detection mechanism in the walnut detecting and sorting apparatus with appearance defects according to the present invention.

Reference numerals

1. A frame; 2. a feeding mechanism; 21. a hopper; 22. a material conveying plate; 23. a feed cylinder; 24. a vibration exciter; 25. a striker plate; 26. a spring piece; 27. an L-shaped support plate; 3. a wind separation mechanism; 31. a blower; 32. A shrunken walnut discharge channel; 4. clamping and conveying mechanisms; 41. rotating the disc; 42. a drive assembly; 421. a first rotary power device; 422. a speed reducer; 423. a coupling; 424. a disc drive shaft; 425. a first photosensor; 426. a bending plate; 43. a clamp assembly; 431. an outer clamp; 432. an inner clamp; 433. A clamping position; 434. a linear guide rail; 435. a clamp stop; 436. a pressure spring; 437. a spring stop; 438. a gear lever; 5. a detection mechanism; 51. a camera mount; 52. an industrial camera; 53. an annular light source; 6. a sorting mechanism; 61. a second rotary power unit; 62. a second photosensor; 63. defective walnut discharge channels; 64. an eccentric block; 65. a detection plate; 66. rotating the pushing block; 67. a normal walnut discharging channel; 7. a computer case; 8. universal castor; 9. a discharge port; 10. a feed inlet; 11. an emergency stop button; 12. a start button; 13. a tri-color lamp; 14. a display; 15. and (5) an observation port.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

As shown in the figure, the walnut detecting and sorting equipment with appearance defects comprises a feeding mechanism 2, a winnowing mechanism 3, a clamping conveying mechanism 4, a detecting mechanism 5, a sorting mechanism 6 and a computer case 7 which are arranged on a frame 1, wherein the computer case 7 is electrically connected with the winnowing mechanism 3, the clamping conveying mechanism 4, the detecting mechanism 5 and the sorting mechanism 6, and the computer case 7 can control the running and stopping of the winnowing mechanism 3, the clamping conveying mechanism 4, the detecting mechanism 5 and the sorting mechanism 6. The bottom of frame 1 is equipped with the layer board, and the bottom surface of layer board is equipped with universal castor 8, and universal castor 8 conveniently removes whole detection and sorting facilities. The side of frame 1 is equipped with the backplate, is equipped with three respectively with the discharge gate 9 that flat walnut discharge channel 32, defect walnut discharge channel 63 and normal walnut discharge channel 67 are connected on one of them backplate, every discharge gate 9 all corresponds to be provided with a collection box, collects the box and conveniently collects the walnut after detecting.

The top of the frame 1 is provided with a top plate, and the top plate is provided with a feed inlet 10, an emergency stop button 11, a start button 12, a tri-color lamp 13 and a display 14. The feed inlet 10 is connected with the top end of the hopper 21, and the feed inlet 10 is used for throwing the walnut to be sorted into the hopper 21. The emergency stop button 11, the starting button 12, the tri-color lamp 13 and the display 14 are all electrically connected with the computer case 7, and the display 14 can display information such as equipment running state and the like, so that a user can know the running condition of the machine conveniently. When the starting button 12 is started, the computer case 7 controls the tri-color lamp 13 to display green, when the emergency stop button 11 is started, the computer case 7 controls the tri-color lamp 13 to display red, when a fault occurs in the operation of the equipment, the computer case 7 controls the tri-color lamp 13 to display yellow, and at the moment, the detachable guard board is overhauled. The guard plate and the top plate are respectively provided with an observation opening 15, a transparent acrylic plate is arranged in the observation window, and the transparent acrylic plate is convenient for users to know the operation condition of the inside of the equipment.

The feeding mechanism 2 comprises a hopper 21, a material conveying plate 22 and a feeding cylinder 23 which are sequentially arranged on the frame 1, the feeding mechanism 2 further comprises a vibration exciter 24, and the vibration exciter 24 is fixed on the frame 1 through a vibration exciter support plate. The vibration exciter 24 is connected with the material conveying plate 22, the vibration exciter 24 is electrically connected with the computer case 7, and the computer case 7 can control the vibration exciter 24 to be started, so that the vibration exciter 24 drives the material conveying plate 22 to vibrate, and the phenomenon that walnut is blocked on the material conveying plate 22 is prevented. The triangular grooves are formed in the material conveying plate 22, so that the stability of the walnut in the conveying process can be effectively improved, and the walnut is prevented from changing in position and posture on the material conveying plate 22. The conveying plate 22 comprises a conveying section and a wind selecting section which are integrally connected, wherein the wind selecting section is positioned below the conveying section, the top end of the conveying section is correspondingly arranged with the bottom end of the hopper 21, and the bottom end of the wind selecting section is correspondingly arranged with the top end of the feeding cylinder 23. The both sides of carrying the section are equipped with the guard edge, and the guard edge can prevent that the walnut from taking place to drop on carrying the section. A stop plate 25 is arranged between the conveying section and the hopper 21, and the stop plate 25 can prevent walnut from falling off the conveying plate when the walnut enters the conveying plate 22 from the hopper 21 and bounces. The bottom of a side board of feed section of thick bamboo 23 is equipped with spring leaf 26, and the bottom and the L shape extension board 27 of a end board of feed section of thick bamboo 23 are connected, are equipped with the U-shaped groove on the bottom surface of L shape extension board 27, and the opening in U-shaped groove leans on towards spring leaf 26 setting, and the cooperation in spring leaf 26 and U-shaped groove can guarantee the stability of walnut at feed section of thick bamboo 23 internal position, prevents to remove the feed section of thick bamboo 23 outside when the bottom of feed section of thick bamboo 23 is carried to the walnut.

The air separation mechanism 3 comprises a fan 31 and a shrunken walnut discharging channel 32 which are correspondingly arranged on two sides of the tail end of the material conveying plate 22, the fan 31 is electrically connected with the computer case 7, and the fan 31 can be a turbine fan 31. The computer case 7 controls the fan 31 to start and stop, and the fan 31 can blow the shrunken walnut into the shrunken walnut discharging channel 32 from the material conveying plate 22, and finally the shrunken walnut falls into the collecting box to realize sorting and collecting.

The clamping and conveying mechanism 4 comprises a rotating disc 41, a driving assembly 42 and a clamping assembly 43, wherein the driving assembly 42 is connected with the middle part of the bottom surface of the rotating disc 41, and the clamping assemblies 43 are uniformly distributed at the edge of the top surface of the rotating disc 41. The driving assembly 42 comprises a first rotary power device 421, a speed reducer 422, a coupling 423 and a disc driving shaft 424 which are sequentially connected from bottom to top, the top of the disc driving shaft 424 is connected with the rotary disc 41 through a connecting flange, the bottom of the disc driving shaft 424 is connected with the frame 1 through a bearing seat, and a speed reducer 422 support plate for connecting and fixing the speed reducer 422 is arranged at the bottom of the bearing seat. The first rotary power device 421 may be a servo motor, the first rotary power device 421 is electrically connected with the computer case 7, the computer case 7 controls the first rotary power device 421 to operate, the first rotary power device 421 transmits power to the speed reducer 422 and the coupling 423, the coupling 423 transmits power to the disc drive shaft 424, and the disc drive shaft 424 drives the connecting flange and the rotating disc 41 to rotate synchronously. Be equipped with first photoelectric sensor 425 on the bearing frame, first photoelectric sensor 425 is connected with computer case 7 electricity, is equipped with bent plate 426 on the flange, and bent plate 426 corresponds the setting with first photoelectric sensor 425, realizes once disconnection and switch-on of first photoelectric sensor 425 when bent plate 426 passes through first photoelectric sensor 425, and photoelectric sensor gives computer case 7 with signal transmission, and computer case 7 controls first rotation power device 421 that is servo motor returns zero.

The clamp assembly 43 includes an outer clamp 431 and an inner clamp 432, the outer clamp 431 is fixed on the rotating disc 41, and a bending part is arranged at the tail end of the outer clamp 431, and a clamping position 433 is formed between the bending part and the inner clamp 432. The inner clamp 432 is movably connected with a linear guide rail 434 fixed on the rotating disc 41, a clamp stop 435 is arranged on the top surface of the inner clamp 432, and one end surface of the inner clamp 432, which is far away from the bending part, is connected with a spring stop 437 fixed on the rotating disc 41 through a pressure spring 436. A limiting groove is arranged on one side surface of the inner clamp 432, which is far away from the outer clamp 431, and is correspondingly arranged with a stop lever 438 fixed on the rotary disc 41, and the stop lever 438 is used for limiting the displacement of the inner clamp 432 on the linear guide rail 434, so that the excessive displacement of the inner clamp 432 is prevented from influencing the clamping effect of the walnut. The ends of the inner clamp 432 and the bending part are provided with chamfers, and the chamfers facilitate the walnut to smoothly enter the clamping position 433. When the clamp assembly 43 rotates to the feeding barrel 23 along with the rotating disc 41, the walnut keeps still under the action of the spring piece 26, the walnut pushes the inner clamp 432 to move along the linear guide rail 434 towards the spring stop 437 and then enter the clamping position 433, and when the pushing force of the clamp assembly 43 on the spring piece 26 is larger than the resistance of the spring piece 26 on the clamp assembly 43, the clamp assembly 43 clamps the walnut to move out of the feeding barrel 23.

The detection mechanism 5 is equipped with two, and two detection mechanism 5 are located the upper and lower both sides of centre gripping conveying mechanism 4 respectively, and two detection mechanism 5 can be more comprehensive to the detection of walnut, improves the detection precision of walnut. The detection mechanism 5 comprises a camera support 51, an industrial camera 52 and an annular light source 53, the industrial camera 52 is connected with the rack 1 through the camera support 51, the camera support 51 comprises a unit frame fixed on the rack 1, the unit frame is connected with a displacement platform through a camera support plate, the displacement platform is connected with the industrial camera 52 through a camera support plate, and the displacement platform can adjust the position of the camera so that the lens is opposite to the clamping position 433 and the integrity of image information is guaranteed. The periphery of the lens of the industrial camera 52 is provided with an annular light source 53, the lens is correspondingly arranged with the clamping position 433, the industrial camera 52 is electrically connected with the computer case 7, and the industrial camera 52 can collect the image information of the upper surface and the lower surface of the walnut on the clamping position 433 and transmit the image information to the computer case 7.

The sorting mechanism 6 comprises a defective walnut sorting assembly and a normal walnut sorting assembly which are sequentially arranged on the periphery of the rotary disc 41. The defective walnut sorting assembly comprises a second rotary power device 61, a second photoelectric sensor 62 and a defective walnut discharging channel 63, wherein the second rotary power device 61 can be a stepping motor, the top end of the defective walnut discharging channel 63 is correspondingly arranged with a clamping position 433, and the second rotary power device 61 and the second photoelectric sensor 62 are electrically connected with the computer case 7. The second rotation power device 61 is connected with an eccentric block 64, the eccentric block 64 is arranged corresponding to the clamp stop block 435, the eccentric block 64 is provided with a detection plate 65, and the second photoelectric sensor 62 is positioned at one side of the eccentric block 64 and is arranged corresponding to the detection plate 65. When the computer case 7 receives the image information acquired by the industrial camera 52 and judges that the defective walnut is detected, the computer case 7 controls the second rotary power device 61 to rotate, the second rotary power device 61 drives the eccentric block 64 and the detection plate 65 to rotate, the eccentric block 64 is contacted with the clamp stop 435 to push the clamp stop 435 to the spring stop 437, the inner clamp 432 is far away from the outer clamp 431, the defective walnut is released, and the defective walnut falls into the collecting box through the defective walnut discharging channel 63 to be sorted and collected. When the detection plate 65 moves through the second photoelectric sensor 62, the second photoelectric sensor 62 is turned off and on once, information is uploaded to the computer case 7, the computer case 7 controls the stepping motor to return to zero, and meanwhile, after the eccentric block 64 rotates for one circle, the stepping motor is controlled to stop running.

The normal walnut sorting assembly comprises a rotary push block 66 and a normal walnut discharging channel 67, wherein the rotary push block 66 is connected with the frame 1 through a rotary push block support plate, and the rotary push block 66 is an external thread bearing. The rotary pushing block 66 is arranged corresponding to the clamp stop block 435, and the top end of the normal walnut discharging channel 67 is arranged corresponding to the clamping position 433. The walnut on the clamp assembly 43 is clamped by the defective walnut sorting assembly and enters the normal walnut sorting assembly, the rotary pushing block 66 in the normal walnut sorting assembly pushes the clamp stop 435 to the spring stop 437, the inner clamp 432 is far away from the outer clamp 431 to release the normal walnut, the normal walnut falls into the collecting box through the normal walnut discharging channel 67 to be sorted and collected, and meanwhile, the rotary pushing block 66 can rotate, so that large abrasion to the clamp stop 435 cannot be generated when the rotary pushing block 66 contacts with the clamp stop 435, and the service life of the clamp stop 435 is guaranteed.

During the use, through feeding mechanism 2 to the walnut feeding, winnowing mechanism 3 blows the flat walnut to in flat walnut discharging channel 32 at feeding mechanism 2 end, and then make flat walnut fall into and collect the sorting and the collection of realizing flat walnut in the box, remaining non-flat walnut removes detection mechanism 5 and sorting mechanism 6 under the centre gripping of centre gripping conveying mechanism 4, detection mechanism 5 carries out the gathering of picture information and gives computer machine case 7 with information transfer to the upper and lower surface of walnut, computer machine case 7 judges whether the walnut is the defect walnut, when judging that the walnut of defect walnut removes to defect walnut sorting subassembly department, second rotary power device 61 drives eccentric block 64 motion and makes eccentric block 64 promote clamp dog 435, make clamp subassembly 43 release the defect walnut, make defect walnut fall into and collect in the box through defect walnut discharging channel 63, realize sorting and collection. When the rest normal walnut moves to the normal walnut sorting assembly under the clamping of the clamping conveying mechanism 4, the rotary pushing block 66 pushes the clamp stop block 435 to the spring stop block 437, so that the clamp assembly 43 releases the normal walnut, and the normal walnut falls into the collecting box through the normal walnut discharging channel 67 to be sorted and collected.

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the walnut sorting machine, the feeding mechanism, the winnowing mechanism, the clamping conveying mechanism, the detecting mechanism, the sorting mechanism and the computer case can reliably realize the functions of walnut feeding, appearance detection, clamping, positioning and conveying and sorting, the whole structure is simple, the function is reliable, the implementation is easy, and the detection precision and the sorting efficiency of walnut sorting procedures can be improved.

(2) According to the feeding mechanism, the vibration exciter drives the material conveying plate to vibrate and convey materials, namely, the vibration exciter vibrates and drives the material conveying plate to vibrate, stacked walnuts can be dispersed, the walnuts are prevented from being blocked on the material conveying plate, the reliability of the feeding mechanism is guaranteed, meanwhile, the blower is arranged to blow air from the side face to the material conveying plate, hollow and flat walnuts with lighter weight are directly blown away from the material conveying plate, the number of walnut detection and sorting is reduced, and therefore the working efficiency of equipment is improved; the feeding mechanism prevents walnut from falling into the outer side of the feeding cylinder by arranging the spring piece on the side surface of the feeding cylinder, and the reliability of the walnut falling into the clamping and conveying mechanism is improved.

(3) According to the clamping and conveying mechanism, the falling walnut is clamped and positioned through the clamp assembly, the rotating disc is driven to rotate through the servo motor, and then the walnut is driven to rotate to the detection position, the normal walnut discharging channel and the defective walnut discharging channel in sequence, so that the structure is simple, the function is reliable, and the implementation is easy.

(4) The clamping assembly is simple in structure and stable in work, the clamping and loosening actions of the walnut are realized through the outer clamp and the inner clamp, the reliable clamping and loosening actions of the inner clamp are realized through the elastic force of the pressure spring on the inner clamp and the thrust force of the clamp stop dog, and the clamping assembly is simple in action and reliable in function.

(5) According to the sorting mechanism, the eccentric blocks are driven by the stepping motor to deflect, the eccentric blocks act on the clamp check blocks of the clamp assembly, and the detected defective walnuts are loosened, so that the defective walnuts fall into corresponding defective walnut discharging channels; the sorting mechanism also acts on the clamp check blocks of the clamp assemblies through the external thread bearings, and after the clamp assemblies are loosened, the intact walnuts fall into the corresponding normal walnut discharging channels, so that walnut sorting is realized, and the reliability and the effectiveness of setting work are ensured.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.

Claims

1. Appearance defect walnut detects and sorting facilities, its characterized in that: the automatic feeding device comprises a feeding mechanism, a winnowing mechanism, a clamping conveying mechanism, a detecting mechanism, a sorting mechanism and a computer case, wherein the feeding mechanism, the winnowing mechanism, the clamping conveying mechanism, the detecting mechanism and the sorting mechanism are arranged on a rack, the computer case is electrically connected with the winnowing mechanism, the clamping conveying mechanism, the detecting mechanism and the sorting mechanism, the feeding mechanism comprises a hopper, a material conveying plate and a material feeding barrel which are sequentially arranged on the rack, a spring piece is arranged at the bottom end of one side plate of the material feeding barrel, the bottom end of one end plate of the material feeding barrel is connected with an L-shaped support plate, a U-shaped groove is arranged on the bottom surface of the L-shaped support plate, the opening of the U-shaped groove is close to the spring piece, the winnowing mechanism comprises a fan and a shrunken walnut discharging channel which are correspondingly arranged at the two sides of the tail end of the material conveying plate, and the fan is electrically connected with the computer case;

2. The appearance defect walnut detecting and sorting equipment according to claim 1, wherein: the feeding device comprises a feeding barrel, and is characterized in that a triangular groove is formed in the feeding plate, the feeding plate comprises a conveying section and a wind selecting section which are integrally connected, the wind selecting section is located below the conveying section, the top end of the conveying section and the bottom end of the hopper are correspondingly arranged, protective edges are arranged on two sides of the conveying section, a baffle plate is arranged between the conveying section and the hopper, and the bottom end of the wind selecting section and the top end of the feeding barrel are correspondingly arranged.

3. The appearance-defect walnut detecting and sorting equipment according to claim 1 or 2, characterized in that: the feeding mechanism further comprises a vibration exciter, the vibration exciter is fixed on the frame through a vibration exciter support plate, the vibration exciter is connected with the material conveying plate, and the vibration exciter is electrically connected with the computer case.

4. The appearance defect walnut detecting and sorting equipment according to claim 3, wherein: the driving assembly comprises a first rotary power device, a speed reducer, a coupler and a disc driving shaft which are sequentially connected from bottom to top, wherein the first rotary power device is electrically connected with the computer case, the top of the disc driving shaft is connected with the rotating disc through a connecting flange, the bottom of the disc driving shaft is connected with the frame through a bearing seat, and a speed reducer support plate used for connecting and fixing the speed reducer is arranged at the bottom of the bearing seat.

5. The appearance defect walnut detecting and sorting equipment of claim 4, wherein: the bearing seat is provided with a first photoelectric sensor, the first photoelectric sensor is electrically connected with the computer case, the connecting flange is provided with a bending plate, and the bending plate is correspondingly arranged with the first photoelectric sensor.

6. The appearance defect walnut detecting and sorting equipment of claim 5, wherein: and a limiting groove is formed in one side surface, far away from the outer clamp, of the inner clamp, and the limiting groove is arranged corresponding to a stop rod fixed on the rotating disc.

7. The appearance defect walnut detecting and sorting equipment of claim 6, wherein: the inner clamp and the end part of the bending part are respectively provided with a chamfer.

8. The appearance defect walnut detecting and sorting apparatus of claim 7, wherein: the two detection mechanisms are arranged and are respectively positioned on the upper side and the lower side of the clamping and conveying mechanism.

9. The appearance defect walnut detecting and sorting device of claim 8, wherein: the camera support comprises a unit frame fixed on the stand, the unit frame is connected with a displacement platform through a camera support plate, and the displacement platform is connected with the industrial camera through a camera support plate.

10. The appearance defect walnut detecting and sorting device of claim 9, wherein: the side of frame is equipped with the backplate, one of them be equipped with on the backplate three respectively with the flat walnut discharge channel defective walnut discharge channel with the discharge gate that normal walnut discharge channel is connected, every the discharge gate all corresponds and is provided with a collection box.

11. The appearance defect walnut detecting and sorting device of claim 10, wherein: the top of frame is equipped with the roof, be equipped with feed inlet, scram button, start button, trichromatic lamp and display on the roof, the feed inlet with the top of hopper is connected, scram button start button trichromatic lamp with the display all with the computer machine case electricity is connected, the backplate with all be equipped with the viewing aperture on the roof, be equipped with transparent acrylic board in the viewing aperture.

12. The appearance defect walnut detecting and sorting device of claim 11, wherein: the bottom of frame is equipped with the layer board, the bottom surface of layer board is equipped with the universal caster.

13. The appearance defect walnut detecting and sorting device of claim 12, wherein: the rotary pushing block is an external thread bearing.