CN107096729B

CN107096729B - Intelligent peanut kernel screening machine and screening method

Info

Publication number: CN107096729B
Application number: CN201710499354.9A
Authority: CN
Inventors: 谷晓红; 丁汉凤; 王效睦; 宫永超; 田茜; 辛富刚; 蒲艳艳; 李娜娜
Original assignee: Shandong Crop Germplasm Resource Center
Current assignee: Shandong Crop Germplasm Resource Center
Priority date: 2017-06-27
Filing date: 2017-06-27
Publication date: 2022-09-09
Anticipated expiration: 2037-06-27
Also published as: CN107096729A

Abstract

An intelligent peanut kernel screening machine and a screening method are used for improving the working efficiency of peanut kernel screening, cleaning and bottling. The material spraying device comprises a hopper, a material spraying pipe, a screening pipe, a cleaning pipe, a drying pipe and a material discharging pipe which are sequentially arranged on a base, wherein the material spraying pipe is arranged at the small end of the hopper, and a material spraying assembly is arranged on the material spraying pipe; the lower end of the material discharge pipe is butted with a screening pipe which is obliquely arranged, and a screening assembly for screening out rotten peanut seeds is arranged in the screening pipe; the small end of the screening pipe is connected with a cleaning pipe which is obliquely arranged, and a cleaning assembly for cleaning peanut seeds is arranged in the cleaning pipe; the lower end of the cleaning pipe is butted with a horizontally arranged drying pipe, a belt conveyor is arranged below the drying pipe, and a drying assembly is arranged on the inner wall of the upper side of the drying pipe; the right end of the drying tube is butted with a discharge tube which is obliquely arranged, and the lower end of the discharge tube is provided with a bottle for containing peanut seeds. The invention can efficiently realize screening and bottling of peanut seeds.

Description

Intelligent peanut kernel screening machine and screening method

Technical Field

The invention relates to the technical field of peanut kernel screening, in particular to an intelligent peanut kernel screening machine and a screening method.

Background

Peanuts are important oil crops and economic crops, and have important effects and influences on the development of light industry and the safety of grain and oil in China. After the peanuts are harvested and before the peanuts are stored, the peanut seeds need to be screened, cleaned, bottled and stored, and high-quality raw material materials can be provided for subsequent processing, storage and utilization. The screening, cleaning and bottling operations of peanut seeds in the prior art are all performed manually, and although the quality of screening, cleaning and bottling of the peanut seeds can be guaranteed, the working efficiency is low, and time and labor are wasted.

Disclosure of Invention

The invention aims to provide an intelligent peanut kernel screening machine and a screening method, which are used for improving the working efficiency of peanut kernel screening, cleaning and bottling.

The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent peanut kernel screening machine is characterized by comprising a hopper, a material spitting pipe, a screening pipe, a cleaning pipe, a drying pipe and a discharging pipe which are sequentially arranged on a base, wherein the material spitting pipe is arranged at the small end of the hopper;

the lower end of the material discharging pipe is butted with a screening pipe which is obliquely arranged, a first screw nut is slidably mounted at the top of the screening pipe and matched with a first lead screw which is rotatably mounted on the screening pipe, and the first lead screw is driven by a first translation motor positioned at the top of the screening pipe to rotate; an electric telescopic rod and a resisting mechanism which are arranged in the front and back are fixed on the first screw, a pressing block is arranged on the electric telescopic rod, and a pressure sensor is arranged on the action surface of the pressing block; the blocking mechanism comprises a fixed rod fixed on the first screw, a blocking rod movably arranged on the fixed rod, a blocking spring arranged between the blocking rod and the fixed rod, an actuating rod fixed on the blocking rod, a rotating wheel rotatably arranged on the actuating rod, and a driving block fixed on the inner wall of the upper side of the screening pipe, wherein an inclined plane on the driving block faces to one side where the blocking mechanism is located; the lower end of the screening pipe is connected with a material distributing pipe, an acute included angle is formed between the material distributing pipe and the screening pipe, and a material shifting mechanism for plugging the screening pipe or the material distributing pipe is arranged at the joint of the screening pipe and the material distributing pipe; the material shifting mechanism, the resisting mechanism, the first screw, the first lead screw, the electric telescopic rod and the first translation motor form a screening assembly;

the lower end of the screening pipe is in butt joint with a cleaning pipe which is obliquely arranged, a second screw nut is slidably mounted at the top of the cleaning pipe and matched with a second lead screw which is rotatably mounted on the cleaning pipe, and the second lead screw is fixedly connected with the output end of a second translation motor which is positioned on the cleaning pipe; the cleaning mechanism comprises a cleaning motor fixed on the second screw, a rotating rod driven by the cleaning motor, a pressing rod movably arranged on the rotating rod, a cleaning piece fixed on the pressing rod, a pressing spring arranged between the cleaning piece and the rotating rod, and a guide plate arranged on the cleaning piece and forming an obtuse included angle with the cleaning piece, wherein a pair of water spray pipes arranged left and right are arranged on the second screw, and the water spray pipes are connected with a water pump; the rear side of the cleaning pipe is provided with a resisting mechanism which is completely the same as the resisting mechanism on the screening pipe in structural composition; the bottom of the lower end of the cleaning pipe is provided with a long hole, and the second nut, the second screw rod, the second translation motor, the wiping mechanism, the water spraying pipe and the resisting mechanism form a cleaning assembly;

the lower end of the cleaning pipe is butted with a horizontally placed drying pipe, a belt conveyor is arranged below the drying pipe, the upper layer of a conveying belt on the belt conveyor is aligned with the inner wall of the lower side of the drying pipe, an air nozzle is fixed on the inner wall of the upper side of the drying pipe, the air nozzle is connected with an air pipe through a connecting pipe, the air pipe is connected with a fan, and the fan, the air pipe, the connecting pipe and the air nozzle form a drying assembly;

the right end of the drying tube is butted with a discharge tube which is obliquely arranged, and the lower end of the discharge tube is provided with a bottle for containing peanut seeds.

Furthermore, the material stirring mechanism comprises a material stirring motor fixed on the screening pipe, a material stirring shaft fixed at the output end of the material stirring motor, and a screening plate fixed on the material stirring shaft.

Furthermore, a dredging mechanism is arranged on the hopper, the dredging mechanism comprises a vibration exciter fixed on the hopper, a vibration rod fixed on the vibration exciter and arranged on the inner side of the hopper, and a dredging plate with the upper end hinged on the inner side wall of the hopper, and the vibration rod is in contact with the lower end of the dredging plate.

Further, the connection part of the material discharging pipe and the screening pipe is in round corner transition.

Further, be equipped with first track at the top of screening pipe, first screw slidable mounting is equipped with the groove of dodging electric telescopic handle and dead lever on first track.

Further, a wiping groove is provided on the working surface of the wiper.

Furthermore, the two water spraying pipes are arranged in an inverted splayed shape, and the water spraying pipes spray water mist.

Furthermore, an inclined block is arranged at the upper end of the cleaning pipe and positioned on the inner wall of the lower side of the cleaning pipe, and the included angle between the cleaning pipe and the horizontal plane is larger than that between the screening pipe and the horizontal plane.

Furthermore, a fluid director is arranged in the air nozzle, and an air hole is formed in the fluid director.

The peanut kernel screening method is characterized by comprising the following steps:

(1) and carrying out grain-by-grain taking on peanut seeds:

(2) detecting the surface quality of the peanut seeds;

(3) cleaning peanut seeds;

(4) drying the cleaned peanut kernels;

(5) and bottling the dried peanut kernels.

The invention has the beneficial effects that: the intelligent peanut kernel screening machine and the screening method provided by the invention can sequentially realize single spitting of peanut kernels, screening of the peanut kernels, cleaning of the peanut kernels, drying of the peanut kernels and bottling of the peanut kernels, and the whole process does not need human intervention and replaces manpower. Due to the arrangement of the screening assembly, rotten peanut seeds can be selected, and the rotten peanut seeds are prevented from being filled into a bottle. The cleaning assembly and the drying assembly are arranged, so that the cleaning and drying of peanut grains can be realized, and a good environment is provided for subsequent breeding research.

Drawings

FIG. 1 is a schematic view of the construction of the screening machine of the present invention;

FIG. 2 is a schematic view of the internal structure of the hopper;

FIG. 3 is a schematic illustration of the installation of the screening tube and screening assembly;

FIG. 4 is a schematic view of a sizing tube;

FIG. 5 is a schematic view of the installation of the sizing plates;

FIG. 6 is a schematic view of a screening assembly;

FIG. 7 is a schematic view of the installation of the cleaning tube and the cleaning assembly;

FIG. 8 is a partial view taken along line A of FIG. 7;

FIG. 9 is a schematic view of the cleaning assembly;

FIG. 10 is a schematic view of the location of the wiper and the spout in a cross-section of the cleaning tube;

FIG. 11 is a schematic view of the installation of the drying tube and the drying assembly;

FIG. 12 is a schematic view of a discharge tube;

FIG. 13 is a schematic view of the installation of the stop lever;

in the figure: 1, a base, 11 support rods, 12 protection pads, 13 collecting tanks, 14 water mist, 15 peanut seeds, 16 recovery tanks, 17 water collecting tanks and 18 bottles;

2, a hopper, 21 protrusions, 22 dredging plates, 23 lug plates, 24 vibration rods, 25 vibration exciters and 26 through holes;

3, a material spitting pipe, 31 a fixing frame, 32 a material spitting motor, 33 a rotating shaft, 34 a material spitting device, 35 a peanut kernel groove and 36 a funnel;

4 screening pipes, 41 first rails, 42 first nuts, 421 first lead screws, 422 first supports, 423 first translation motors, 424 grooves, 43 electric telescopic rods, 431 pressing blocks, 44 mounting plates, 45 fixing rods, 451 stop rods, 452 support springs, 453 actuating rods, 454 rotating wheels, 46 avoiding grooves, 47 driving blocks, 471 inclined planes, 48 stirring motors, 481 stirring shafts, 482 screening plates and 49 screening pipes;

5 cleaning pipe, 51 second rail, 52 second screw, 521 second lead screw, 522 second support, 523 second translation motor, 524 motor groove, 53 wiping motor, 54 rotating rod, 541 pressing rod, 542 pressing spring, 543 wiping piece, 544 guide plate, 545 wiping groove, 55 oblique block, 56 long hole and 57 water spray pipe;

6 drying pipes, 61 belt conveyors, 611 conveying belts, 62 carrier rollers, 63 air nozzles, 64 connecting pipes, 65 fluid deflectors, 651 air holes, 66 air pipes and 67 fans;

7 discharge tube, 71 discharge hole, 72 clamping seat, 721 blanking hole.

Detailed Description

As shown in fig. 1 to 13, the screening machine of the present invention mainly includes a hopper 2, a spitting assembly, a screening pipe 4, a screening assembly, a cleaning pipe 5, a cleaning assembly, a drying pipe 6, a drying assembly, and a discharging pipe 7, which are disposed on a base 1, and the hopper, the spitting pipe, the screening pipe, the cleaning pipe, and the drying pipe are all fixed on the base by a support rod 12, and the screening machine of the present invention will be described in detail with reference to the drawings.

As shown in figure 1, a base 1 is a basic component of the screening machine, a hopper 2 is arranged above the left end of the base, as shown in figure 2, the hopper is in a conical structure with a large upper part and a small lower part, a protrusion 21 is fixed on the inner wall of the upper side of the hopper, a dredging plate 22 is arranged on the inner side of the hopper, and an ear plate 23 connected with the protrusion in a hinged mode is arranged on the upper side of the dredging plate. A vibration exciter 25 is fixed on the side wall of the hopper, and a vibration rod 24 is arranged on the vibration exciter and is in contact with the dredging plate. When the vibration exciter works, the vibration rod can be driven to vibrate, and then the dredging plate is driven to vibrate, so that the blockage caused by accumulation of peanut seeds in the hopper is avoided. The vibration exciter, the vibration rod, the dredging plate and the protrusion form a dredging mechanism.

The small end of the hopper is provided with a through hole, a material discharging pipe 3 is arranged below the through hole, and the material discharging pipe is fixed at the bottom of the hopper. The outer wall of the material discharging pipe is fixed with a fixed ring 31, the fixed ring is fixedly provided with a material discharging motor 32, a rotating shaft 33 fixed at the output end of the material discharging motor is rotatably connected with the material discharging pipe, a spherical material discharging device 34 arranged at the inner side of the material discharging pipe is fixed on the rotating shaft, the outer wall of the material discharging device is provided with a peanut seed groove 35, and a protection pad 12 is arranged in the peanut seed groove. A funnel 36 is arranged on the inner side of the material discharge pipe and positioned above the material discharge device, the large end of the funnel is communicated with the through hole 26 at the small end of the hopper, and the small end of the funnel is positioned right above the material discharge device. Peanut kernels in the hopper pass through the through holes and enter the hopper, and when the peanut kernel groove faces right above, the peanut kernels in the hopper fall into the peanut kernel groove. And then the material spitting motor drives the material spitting device to rotate 180 degrees, and the peanut seeds fall off from the material spitting device to realize the material spitting operation. And only one peanut kernel is removed from the hopper every time the material is spitted, and the size of the peanut kernel groove is matched with that of the peanut kernels. The material spitting motor, the rotating shaft, the material spitting device, the fixing ring and the funnel form a material spitting assembly.

And a screening pipe 4 which is obliquely arranged is arranged below the material discharging pipe, and the screening pipe and the material discharging pipe are in round corner transition. An acute included angle is formed between the screening pipe and the horizontal plane, as shown in fig. 3, a first rail 41 is arranged above the screening pipe, the first rail is fixedly connected with the screening pipe, a first nut 42 is slidably mounted on the first rail, the first nut is matched with a first lead screw 421, the first lead screw is rotatably mounted between a pair of first supporting seats 422 fixed on the first rail, and the first lead screw is driven by a first translation motor 423 to rotate. Grooves 424 are respectively formed in the top and the bottom of the first screw, the grooves are arranged in the front and the back of the screening pipe in the length direction, an installation plate 44 is fixed in the groove in the bottom, an electric telescopic rod 43 is fixed on the installation plate, a pressing block 431 is arranged on the electric telescopic rod, and a pressure sensor is arranged at the bottom of the pressing block. The electric telescopic rod drives the pressing block to be close to the peanut seeds, and after the pressing block is contacted with the peanut seeds, the pressure sensor can sense the pressure between the pressing block and the peanut seeds. If the peanut kernel does not decay, after the pressing block is in contact with a plurality of points on the outer wall of the peanut kernel, the pressure sensed by the pressure sensor is about the value N (or between N1 and N2, and the difference between N2 and N1 is small), wherein N is a certain value larger than 0. If the pressing block contacts with a rotten part on the peanut kernel, the pressure value f sensed by the pressure sensor is smaller than N, and the difference value between f and N is larger. When the electric telescopic rod moves for the same distance, the pressing block is not contacted with the peanut seeds when the pressure sensed by the pressure sensor is zero because the shape of the peanut seeds is not a full circle. The pressure sensed by the pressure sensor is used for judging whether the peanut kernels are rotten or not.

Because the screening pipe is an inclined pipe, the peanut seeds can roll downwards under the action of self gravity. In order to stop the peanut kernel after rolling and facilitate multipoint sampling measurement on the outer wall of the peanut kernel, a fixing rod 45 is fixed in the groove at the upper part, as shown in fig. 6 and 13, a blocking rod 451 is slidably mounted in an inner cavity of the fixing rod, a resisting spring 452 is arranged between the blocking rod and the inner cavity wall of the fixing rod, and most of the blocking rod extends out of the fixing rod under the action of the resisting spring. After the peanut seeds are contacted with the stop lever, the stop lever prevents the peanut seeds from continuously rolling downwards. When the stop lever moves downwards, the peanut kernels move downwards while contacting the stop lever and rotate. The first translation motor acts once, the first nut moves on the first rail once, the peanut seeds rotate once, the electric telescopic rod acts once, the pressure sensor on the pressing block senses the pressure value between the pressing block and the peanut seeds once, and the measured value is transmitted to the controller. After the first translation motor acts for multiple times, the peanut seeds rotate for at least one circle, so that the outer walls of the peanut seeds can be sampled and detected. The lower parts of the electric telescopic rod and the fixed rod penetrate through the first rail and then are arranged on the inner side of the screening pipe, and in order to avoid the electric telescopic rod and the fixed rod, avoiding grooves 46 are respectively formed in the first rail and the screening pipe. In order to drive the stop lever to retract into the inner cavity of the fixing lever, an actuating lever 453 is vertically fixed on the stop lever, one end of the actuating lever is fixedly connected with the stop lever, and a rotating wheel 454 is rotatably mounted at the other end of the actuating lever. A right-angled trapezoidal driving block 47 is fixed to the inner wall of the upper side of the sieving tube, and the inclined surface 471 of the driving block faces the side where the stopper is located. Electric telescopic handle, dead lever and pin all are located the cross section of screening pipe, and perpendicular to screening pipe. After the inclined plane contact on runner and the drive block, along with the continuation removal of first screw, the runner rotates along the inclined plane, and the pin removes relative dead lever, and after the pin withdrawed to one section in the dead lever inner chamber, the effect of blocking of pin to peanut seed grain disappeared, and the peanut seed grain can cross the pin and roll downwards. The fixed rod, the stop lever, the stop spring, the actuating rod and the rotating wheel form a stop mechanism.

As shown in fig. 4, a material distributing pipe 49 is connected to the lower end of the sieving pipe, and the material distributing pipe is communicated with the sieving pipe and forms an acute included angle with the sieving pipe. The material distributing mechanism is arranged at the joint of the material distributing pipe and the screening pipe and mainly comprises a material distributing motor 48 fixed on the screening pipe, a material distributing shaft 481 fixed at the output end of the material distributing motor and a screening plate 482 fixed on the material distributing shaft, wherein the screening plate is a flat plate. When the peanut kernel is intact, the screening board and the screening pipe parallel arrangement and the screening board plug up the branch material pipe, and the peanut kernel rolls from top to bottom along the screening pipe. When peanut seed grain has rotten place, dial material motor drive and dial the material axle and rotate for screening board anticlockwise rotation certain angle, the screening pipe is plugged up to the screening board this moment. Rotten peanut kernel rolls to in the branch material pipe along screening board to the removal of rotten peanut kernel is realized. A collecting tank 13 is arranged below the lower end of the material separating pipe to collect rotten peanut seeds. The material stirring mechanism, the first screw, the first lead screw, the first translation motor, the electric telescopic rod, the pressing block and the blocking mechanism form a screening assembly.

The lower end of the screening pipe is butted with a cleaning pipe 5 which is obliquely arranged, and the included angle between the cleaning pipe and the horizontal plane is larger than that between the screening pipe and the horizontal plane. As shown in fig. 7 and 9, a second rail 51 is fixed to an upper portion of the cleaning pipe, a second nut 52 is slidably mounted on the second rail, the second nut is engaged with a second screw 521 rotatably mounted between two second brackets 522, the second brackets are fixed to the second rail, and a second translation motor 523 for rotating the second screw is provided on the second rail. Be equipped with three motor groove 524 in the front side of second screw, three motor groove is located the upside of second screw respectively, left side and right side, be equipped with cleaning motor 53 in the motor groove, output at cleaning motor is fixed with rotary rod 54, slidable mounting has compressing rod 541 in the inner chamber of rotary rod, lower extreme at compressing rod is fixed with wiper 543, be equipped with pressure spring 542 between wiper and rotary rod, the wiper is the platelike structure, be fixed with deflector 544 on the wiper, certain contained angle has between deflector and the wiper, and the free end of deflector is towards the inner wall of scavenge pipe. The second rail and the cleaning pipe are also provided with an avoiding groove, and the rear side of the second screw nut is provided with a resisting mechanism in the same installation mode, wherein the resisting mechanism is the same as the resisting mechanism on the first screw nut in structure and function. And the fixing rod and the rotating rod can be avoided by the arrangement of the avoiding groove. Under the action of the compression spring, the wiping piece is in contact with peanut kernels, and the wiping piece rotates under the action of the wiping motor to wipe the peanut kernels. The wiping motor, the rotating rod, the pressing spring and the guide plate form a wiping mechanism, and a wiping groove 545 is arranged on the acting surface of the wiping piece so that the wiping piece is in contact with the surface of peanut kernel. As shown in fig. 10, a wiping mechanism is respectively arranged on the upper side, the left side and the right side (the front side and the rear side along the length direction of the cleaning tube) of the cleaning tube, and the three wiping mechanisms respectively wipe the peanut kernels from the upper side, the left side and the right side. When the peanut kernels roll from top to bottom, the peanut kernels firstly contact the guide plate, then the compression spring is pressed to contract, the peanut kernels are squeezed into the three wiping parts, and the peanut kernels squeezed into the wiping parts are blocked by the blocking rod. When the second translation motor acts once, the second screw and the stop lever move downwards for a certain distance, and peanut seeds roll downwards once under the action of self gravity, so that after the second translation motor acts for multiple times, the peanut seeds can be wiped at multiple points along the circumferential direction.

Still fixed a pair of spray pipe 57 of controlling the setting on the second screw, the lower extreme of spray pipe is towards the space that three cleaning member enclosed, and the spray pipe can spout water smoke, and at the whole in-process that the second screw from top to bottom moved, the spray pipe all is in operating condition, and the cleaning member is cleaned the peanut seed grain that has spouted water smoke to guarantee the cleaning performance.

The upper side inner wall of the cleaning pipe is provided with a driving block 47, and the stop lever moves upwards after the rotating wheel on the stop mechanism is contacted with the driving block until the peanut seeds are released, and the peanut seeds continue to roll downwards. To collect the water in the washing tube, as shown in fig. 8, a plurality of elongated holes 56 are provided at the bottom of the lower side of the washing tube to facilitate the outflow of the water. A recovery groove 16 positioned on the base is arranged below the long holes to recover water after the peanut seeds are cleaned.

Because abluent demand, the size of scavenge pipe is greater than the size of screening pipe, for realizing the linking between screening pipe and the scavenge pipe to make peanut seed grain accelerate smoothly and get into between the three wiper piece in the scavenge pipe, be equipped with sloping block 55 in the upper end of scavenge pipe, and the sloping block is located the lower part of the inner chamber of scavenge pipe, and the peanut seed grain accelerates when the sloping block passes through. The second screw nut, the second screw rod, the second translation motor, the resisting mechanism, the wiping mechanism and the water spray pipe form a cleaning assembly, and the water spray pipe is connected with the water pump.

The lower end of the cleaning pipe is butted with a horizontally placed drying pipe 6, as shown in fig. 11, a belt conveyor 61 is arranged below the drying pipe, the upper layer of an upper conveying belt 611 of the belt conveyor and the lower inner wall of the drying pipe are positioned in the same plane, and a notch for accommodating the conveying belt is arranged at the bottom of the drying pipe. In order to stably lift peanut seeds, supporting rollers 62 are arranged on the upper layer and the lower layer of the conveying belt. The drying device is characterized in that a strip-shaped air nozzle 63 is fixed in the upper wall of the drying pipe, a connecting pipe 64 is arranged at the top of the air nozzle and is communicated with the inner cavity of the air nozzle, a fluid director 65 is arranged in the inner cavity of the air nozzle, a plurality of air holes 651 are arranged on the fluid director, the connecting pipe is connected with a fan 67 through an air pipe 66, the fan conveys air flow into the air nozzle through the air pipe and the connecting pipe, and the air flow is blown out of the air nozzle to accelerate the evaporation of moisture on the surface of peanut seeds so as to play a role in drying the peanut seeds. The belt conveyor should operate at a lower speed to ensure that no moisture is present on the surface of the peanut kernels as they leave the conveyor. The fan, the air pipe, the connecting pipe, the air nozzle and the fluid director form a drying assembly. In order to collect water drops on the outer wall of the peanut seed, a water collecting tank 17 is arranged below the drying pipe, and a round hole for containing the water drops is arranged on the conveying belt.

The right-hand member at the drying tube is docked has discharge tube 7 that the slope set up, and the upper end of discharge tube is connected with the right-hand member of drying tube, and during the peanut seed grain got into the discharge tube after breaking away from the conveyer belt, rolled downwards along the discharge tube. The lower extreme of discharge tube is sealed, is equipped with discharge opening 71 in the bottom of discharge tube lower extreme, below the discharge opening with the screens seat 72 of the bottom fixed connection of discharge tube, the bottom level of screens seat is equipped with the blanking hole 721 with the discharge opening intercommunication on the screens seat, the peanut seed grain falls after passing discharge opening, blanking hole in proper order. The bottle 18 is placed below the clamping seat, and peanut seeds fall into the bottle for storage.

In order to avoid the damage to the outer skin of the peanut seeds caused by multiple collisions, the inner walls of the material discharging pipe, the screening pipe, the cleaning pipe, the drying pipe and the discharging pipe are provided with a protection pad 12.

The working process of the screening machine of the present invention is briefly described below:

the peanut kernel is poured into the hopper, the material spitting motor is started, the peanut kernels enter the screening pipe from the hopper side by side, and when the peanut kernels need to be discharged, the vibration exciter is started to clear blockage in the hopper. After the peanut seeds are contacted with the stop lever in the screening pipe, the first translation motor is started to enable the peanut seeds to roll from top to bottom, and each time the peanut seeds roll, the electric telescopic rod acts once to drive the pressure sensor on the pressing block to detect pressure; when the peanut seeds are intact, the peanut seeds enter the cleaning pipe through the screening pipe; when the peanut seeds 15 are rotten, the material shifting motor drives the screening plate to rotate, so that the peanut seeds enter the material distributing pipe through the screening pipe and finally fall into the collecting tank; peanut seeds entering the cleaning pipe are extruded into the three wiping pieces, the wiping pieces are driven to act at the moment to wipe the peanut seeds by the aid of the wiping motor, and the second translation motor is driven to act to continuously roll the peanut seeds downwards; when the second screw nut moves downwards to the maximum stroke, the peanut kernels cross the stop lever and then enter the drying pipe; in the drying tube, the peanut kernels are dried by air drying, enter the discharge tube under the conveying of the belt conveyor, and finally fall through the discharge hole at the lower end of the discharge tube, and can be bottled and stored at the moment. From the left hand right side, peanut seed grain can be under the effect of self gravity in proper order through spitting material pipe, screening pipe, scavenge pipe, drying tube and discharge tube, utilizes the gravity of self to realize the transport to self, can practice thrift conveying structure's setting.

The method for screening the peanut kernels by using the intelligent peanut kernel screening machine comprises the following steps:

(1) and carrying out kernel-by-kernel taking on peanut kernels:

(2) performing surface quality detection on the peanut seeds;

(3) cleaning the peanut seeds;

(4) drying the cleaned peanut kernels;

(5) and bottling the dried peanut kernels.

Claims

1. The intelligent peanut kernel screening machine is characterized by comprising a hopper, a material spitting pipe, a screening pipe, a cleaning pipe, a drying pipe and a discharging pipe which are sequentially arranged on a base, wherein the material spitting pipe is arranged at the small end of the hopper; the hopper is provided with a dredging mechanism, the dredging mechanism comprises a vibration exciter fixed on the hopper, a vibration rod fixed on the vibration exciter and arranged on the inner side of the hopper, and a dredging plate, the upper end of the dredging plate is hinged on the inner side wall of the hopper, and the vibration rod is in contact with the lower end of the dredging plate;

the lower end of the material discharging pipe is butted with a screening pipe which is obliquely arranged, a first screw nut is slidably mounted at the top of the screening pipe and matched with a first lead screw which is rotatably mounted on the screening pipe, and the first lead screw is driven by a first translation motor positioned at the top of the screening pipe to rotate; an electric telescopic rod and a resisting mechanism which are arranged in the front and at the back are fixed on the first screw, a pressing block is arranged on the electric telescopic rod, and a pressure sensor is arranged on the action surface of the pressing block; the resisting mechanism comprises a fixed rod fixed on the first screw nut, a stop lever movably arranged on the fixed rod, a resisting spring arranged between the stop lever and the fixed rod, an actuating rod fixed on the stop lever, a rotating wheel rotatably arranged on the actuating rod, and a driving block fixed on the inner wall of the upper side of the screening pipe, wherein an inclined plane on the driving block faces to one side where the resisting mechanism is located; the lower end of the screening pipe is connected with a material distributing pipe, an acute included angle is formed between the material distributing pipe and the screening pipe, a material shifting mechanism for plugging the screening pipe or the material distributing pipe is arranged at the joint of the screening pipe and the material distributing pipe, and the material shifting mechanism comprises a material shifting motor fixed on the screening pipe, a material shifting shaft fixed at the output end of the material shifting motor, and a screening plate fixed on the material shifting shaft; the material shifting mechanism, the resisting mechanism, the first screw, the first lead screw, the electric telescopic rod and the first translation motor form a screening assembly;

2. The intelligent peanut kernel screening machine of claim 1, wherein the connection of the spitting pipe and the screening pipe is in rounded corner transition.

3. The intelligent peanut kernel screening machine of claim 1, wherein a first rail is arranged at the top of the screening pipe, the first nut is slidably mounted on the first rail, and an avoiding groove for avoiding the electric telescopic rod and the fixing rod is arranged on the first rail.

4. The intelligent peanut kernel screening machine of claim 1, wherein a wiping groove is provided on the action surface of the wiper.

5. The intelligent peanut kernel screening machine of claim 1, wherein the two water spray pipes are arranged in an inverted splayed shape and spray water from the water spray pipes.

6. The intelligent peanut kernel screening machine of claim 1, wherein an inclined block is arranged at the upper end of the cleaning pipe, the inclined block is arranged on the inner wall of the lower side of the cleaning pipe, and the included angle between the cleaning pipe and the horizontal plane is larger than the included angle between the screening pipe and the horizontal plane.

7. The intelligent peanut kernel screening machine of claim 1, wherein a deflector is disposed in the air nozzle, and an air hole is disposed on the deflector.