112results about How to "Not easy to collect" patented technology

The invention relates to a line loss prediction method of a BP neural network optimized by a genetic algorithm, belonging to the technical field of line loss prediction and machine learning of a powernetwork. At first, the method obtains line characteristic parameters through the power network line, and establishes a prediction model of a BP neural network for the characteristic parameters. Then,the individual length is determined according to the weights and thresholds in the topology of BP neural network, and the individual is selected, crossed and mutated by genetic algorithm with real number coding. Finally, the convergence condition is judged and the optimal individual is selected. Then the BP neural network is initialized and trained with the variable learning rate momentum BP algorithm until the network converges. The genetic algorithm is used to optimize the BP neural network algorithm to predict the line loss. The method has the advantages of improved prediction accuracy, less calculation time and enhanced stability. Therefore, the method has certain research significance.

The invention provides a control method and a control device for an air-conditioning system. The control device is characterized by being a controller applied to the air-conditioning system. The method comprises the following steps: before receiving a heating starting instruction, utilizing a temperature sensor mounted on a housing of a spraying enthalpy compressor to continuously acquire a housing temperature of the spraying enthalpy compressor; when the housing temperature is smaller than a first temperature value, conveying preset current to a stator winding in the spraying enthalpy compressor; and when the housing temperature is greater than a second temperature value, stopping conveying preset current to the stator winding in the spraying enthalpy compressor, wherein the first temperature value is smaller than the second temperature value. The spraying enthalpy compressor comprises the stator winding, an oil tank, a compression cavity and a housing, which are adjacent to one another, so that heat generated by the stator winding can be transmitted to the oil tank, the compression cavity and the housing through heat exchange effect. A stator winding hating mode is adopted, so that the problems of oil shortage and low-temperature effusion of the spraying enthalpy compressor can be solved.

This invention discloses one test chip method, which comprises the following steps: a, setting programmable logic unit with analogue sensor output signals; b, programmable logic unit receiving input data and analogue output signal of sensor and the unit inputs the signals to the chip tested; c, receiving input data by use of output signal for data process. This invention compares the results of chips and software evaluation tool and also compares the chip and input data to observe chip computation formula effect.

The invention belongs to the technical field of power semiconductors and relates to a grooved gate short circuit anode SOI LIGBT. In comparison with the traditional short circuit anode LIGBT, anode grooves connected to anode potential are introduced at an anode end, and a P body area is introduced right below an N+ anode area; and grooved gates and cathode grooves connected with a cathode are introduced in a cathode area. When the device is turned off, the anode groove is connected to high potential, an NMOS in the anode area is started automatically, extraction of electrons stored in a driftarea is quickened, and the turn-off time and the turn-off energy loss are reduced; when the device is in a high-voltage high-current state, the cathode groove forms a hole bypass, and happening of latch-up effects is suppressed; when the device is conducted, under blocking of an electronic barrier in the P body area, electron current in the drift region is not easy to be collected by the N+ anode,voltage reentry effects are eliminated, and as the grooved gate structures of the cathode are in parallel connection, the channel density is increased and the conduction voltage drop is reduced. Thegrooved gate short circuit anode SOI LIGBT has the beneficial effects that in comparison with the traditional short circuit anode LIGBT, a voltage reentry phenomenon is eliminated under a smaller transverse cell size, and the conduction voltage drop is lower.

The invention discloses a raisin dehydration device based on power rotation and power vibration, and relates to the technical field of raisin processing. The raisin dehydration device based on power rotation and power vibration comprises a first shell, a driving device is fixedly connected with the bottom of the inner wall of the first shell, a first bearing is fixedly connected with the interiorof the upper surface of the first shell, and the inner wall of the first bearing is fixedly connected with the surface of the driving device. According to the raisin dehydration device based on powerrotation and power vibration, pushing blocks rotate to make a supporting frame move vertically, a dehydration barrel is driven to vibrate vertically, and raisins in a material taking barrel are evenlyspread on the inner wall of the material taking barrel, thus effectively solving the problem that when raisins in a dehydration device are subjected to dehydration, the raisins pile up, the raisins away from the barrel wall are subjected to low centrifugal force, and water absorbed by the surfaces of the raisins cannot be completely removed, so that the quality of the raisins subjected to dehydration treatment is reduced.

The invention relates to the technical field of wire harness processing, and discloses an electronic wire harness production line, and the production line comprises a feeding device, a processing device and a collecting device which are sequentially arranged in the wire harness advancing direction; the processing device is arranged on a workbench, and the feeding device comprises a wire harness feeding unit and a wire harness conveying unit which are sequentially arranged in the feeding direction; the processing device comprises a wire cutting unit, a feeding unit, a crimping unit and a terminal chain pushing unit. The wire cutting unit comprises a knife rest arranged on the collecting table and close to one side of the movable seat; the three cutter assemblies are arranged in parallel inthe length direction of the cutter rest, a cutter driving part is arranged on the cutter rest, a pull-back part is arranged below a movable base and used for driving the movable base to move in the width direction of the workbench, and a moving part is arranged between the collecting table and the workbench and used for driving the wire harness to move. The length direction of the knife rest is parallel to that of the workbench. The production line has the following advantages and effects that the machining procedures are integrated, and the machining efficiency is high.

The invention discloses a cutting device of a floating debris cleaning boat. The cutting device comprises transverse cutters, longitudinal cutters, a first hydraulic motor, a second hydraulic motor, a transverse bracket and a longitudinal bracket. The cutting device further comprises a third hydraulic motor. The third hydraulic motor is connected with the transverse bracket in a transmission way. The transverse cutter comprises a first rotating disk and a plurality of first detachable blades. Four transverse cutters are arranged along the transverse bracket. The area scanned by rotation of the first detectable blades on two adjacent first rotating disks is overlapped partially and is distributed by layers on a space. The longitudinal cutter comprises a second rotating disk and a plurality of second detectable blades. Two longitudinal cutters are respectively fixed on a left beam and a right beam of the longitudinal bracket. Disk surfaces of the second rotating disks of two longitudinal cutters are longitudinally and vertically arranged. The cutting device is out of order difficultly, capable of effectively cutting water plants fast, featured with high cutting efficiency and capable of cutting and cleaning the water plants in near-shore shallows.

The invention discloses an anti-diffusion tunnel surrounding rock blasting hole slag removal device, and relates to the technical field of tunnel construction. The anti-diffusion tunnel surrounding rock blasting hole slag removal device comprises a box body; first ball bearings are fixedly connected into the left side and the right side of the box body; a first rotary shaft is fixedly connected tothe inner walls of the first ball bearings, and the right side of the surface of the first rotary shaft is fixedly connected with fan blades; and a first conical fluted disc is fixedly connected to the position, located on the left sides of the fan blades, of the surface of the first rotary shaft. According to the anti-diffusion tunnel surrounding rock blasting hole slag removal device, negativepressure forms in the box body through rotation of the fan blades, waste slag removed from blasting holes is collected into the box body through a first pipeline and prevented from being diffused intothe other blasting holes, and accordingly, the problems that a slag removal device on the market at present cannot collect waste slag removed from blasting holes, the waste slag removed from the blasting holes are prone to being diffused into the cleaned blasting holes, and then, the blasting holes are not thoroughly cleaned are effectively solved.

The invention discloses a multifunctional car washing brush which comprises at least one brush body. The brush bodies are divided into an upper brush body, a middle brush body and a lower brush body which are detachably connected, a dedusting bag is arranged in the upper brush body, the middle brush body is a hollow water inlet and liquid storage cavity, the lower brush body comprises a first partition and multiple soft brush strips, one ends of the soft brush strips are fixedly arranged on the first partition, the soft brush strips are spaced and arranged in parallel, each soft brush strip is of an internally-hollow strip-shaped structure, the other end of each soft brush strip is spherical, and the spherical diameter of the other end of each soft brush strip is larger than the diameter of a cross section of the hollow structure of each soft brush strip. The multifunctional car washing brush is simple in structure, flexible to operate, convenient to use, and multipurpose.

The invention provides a multi-factor human face living body detection system and method, and belongs to the technical field of human face recognition. The system comprises a human face detection module, a human face image preprocessing module, a data storage module, a random number generation module and a multi-factor living body detection module. The method comprises: acquiring face image information and video information, and sending the acquired face image information and video information to a face image preprocessing module and a data storage module; enabling the face image preprocessingmodule to preprocess the received face image information and video information and judge whether the face information meets requirements or not according to a processing result; enabling the random number generation module randomly to generate multi-factor living body detection parameters; and enabling the multi-factor living body detection module to perform multi-factor human face living body detection according to the multi-factor living body detection parameters generated by the random number generation module. According to the method, challenge action combinations are diversified, challenge pools are richer, and the attack difficulty is greatly increased.

The invention discloses urban solid waste treatment equipment which comprises a crushing frame and an installation barrel. The crushing frame is installed at the top of a base, the installation barrelis installed at the upper end of the top of a bearing plate, a connecting plate is connected between one side of the installation barrel and the base, the connecting plate is obliquely arranged downwards from one side of the installation barrel to one side of the base, the inner bottom end of the base is hollow, and the inner middle end of the connecting plate is provided with a groove in the length direction. Liquid can flow out of holes of a conveying mesh belt, cement and sand in construction waste can fall out of the holes of the conveying mesh belt after being crushed, and residual steelbars, metals and other objects in the conveying mesh belt can continue to enter the installation barrel for subsequent uniform collection. The crushed cement sand and metals can be reused, the benefits can be maximized by separate collection, and environmental protection is facilitated.

The invention discloses a sampling device of collaborative particulates of a low-temperature plasma generator and a sampling method and relates to the technical field of purification treatment of harmful exhaust gas of cars. The sampling device comprises a main gas inlet pipe (1), a bracket A (5), the low-temperature plasma generator (6), a gas inlet pipe (7), a particulate sampling device A (10), a particulate sampling device B (14), a gas exhausting pipe (17), a bracket B (18), a total gas exhausting pipe (20) and a base (21). The sampling device and the sampling method disclosed by the invention have the advantages that by combination of the particulate sampling device, a particulate sample before low-temperature plasma treatment can be obtained by opening a valve A (8), and a particulate sample after low-temperature plasma treatment can be obtained by opening a valve B (16). The sampling device and the sampling method can be used for testing and analyzing the particulate sample before and after action of the low-temperature plasma so as to obtain the action rule of the low-temperature plasma on the particulates. The sampling device provides convenient conditions for studying the action mechanism of the particulates by low-temperature plasma treatment.

The invention is the biological tissue slice making method, which comprises the following processes: A. flatten the tissue sample and fix on the vertical plate of the inverse T-shape non-metal bracket, and fix the base plate of the bracket on the carrying platform and make the vertical plate of the bracket in front of the knifeware and parallel the platform of the bracket and the moving direction of the carrying platform; B. the slicing machine simultaneously slices the tissue samples and the vertical plate of the non-mental bracket. The invention makes the slicing face vertical to the interface of each tissue sample layer, and every interface is flat and straight.

The invention discloses a negative pressure type blast hole slag removal device for tunnel surrounding rock blasting, and relates to the technical field of tunnel construction. The negative pressure type blast hole slag removal device for tunnel surrounding rock blasting comprises a driving mechanism, a supporting frame is fixedly connected to the left side of the driving mechanism, an adjusting mechanism is connected to the surface of the driving mechanism in a sleeving mode, the right side of the adjusting mechanism is fixedly connected with the left side of the supporting frame, a first groove is formed in the left side of the adjusting mechanism, and a fixed mechanism is fixedly connected to the inner wall of the first groove. According to the negative pressure type blast hole slag removal device for tunnel surrounding rock blasting, dust in a blast hole enters the interior of a second shell with airflow, and the dust in the blast hole is cleaned, so that the problem that the normal service life of a hairbrush is reduced due to the fact that at present, when the dust in the blast hole is cleaned, the hairbrush is mostly adopted to clean the dust in the blast hole, but rocks arerelatively hard and are prone to scratching the hairbrush during cleaning by the hairbrush is effectively solved.

The invention discloses an agricultural mower convenient to use. The mower includes a connection block. a penetrating circular groove is disposed at the top of the connection block; right sides of a front surface and a back surface of the connection block are movably connected with a first rotating rod; a rotating wheel is fixedly connected to the surface of the first rotating rod; the left side of the bottom of the connection block is fixedly connected with a universal wheel; the bottom of the universal wheel is located on the same horizontal line as the bottom of the rotating wheel; and thetop of the connection block is fixedly connected with a lifting mechanism; and the right side of the top of the connection block is fixedly connected with a handle, wherein the handle is L-shaped. Themower works through telescopic cylinders, so that telescopic rods work for stretching or retracting, so that toothed plates can be moved up and down, meshed gears can rotate, and a cutting mechanismcan perform a lifting motion during operation without generating a skewing situation, the work efficiency is improved, thus avoiding the problems of low efficiency of the agricultural mower and inconvenience of adjusting the height.

The invention discloses an automobile sealing element sealing performance detection device, which comprises a device outer shell, a clamping plate, flow guide fan blades, exhaust fan blades, a scraping rod and a collecting frame, wherein a hydraulic cylinder is mounted on the device outer shell through bolts; a hydraulic rod is mounted at the output end of the hydraulic cylinder through using thebolts; a first circular gear is installed on a connecting pipe, and flow guide fan blades are connected to the first circular gear through a shaft; a supporting rod is connected to the first circulargear through using a screw, and the scraping rod is connected to the bottom end of the supporting rod through using a screw; and a collecting groove is formed in a fixing plate, and a collecting frameis connected to the bottom end of the fixing plate through using a screw. The automobile sealing element sealing performance detection device is provided with the scraping rod, the supporting rod candrive the scraping rod to conduct rotary scraping work on the fixing plate, accumulated liquid can be pushed into the collecting frame to be collected and observed, meanwhile, the residual accumulated liquid can be effectively removed, and then the situation that the detection result of a next sealing element body is inaccurate due to accumulated liquid residues can be effectively prevented.

The invention relates to an odor treatment system for an indoor polluted space. The odor treatment system comprises: a microorganism carrier, which is arranged in the indoor polluted space; an activemicroorganism storage device, which is used for storing an active microorganism bacterium solution; an atomization device, which is used for spraying the active microorganism bacterium solution to themicroorganism carrier; a gas pipeline, which is arranged in the indoor polluted space; high-energy ion equipment, which is used for introducing ion fresh air into the gas pipeline; a photocatalytic deodorization lamp, which is arranged in the gas pipeline and used for carrying out photocatalytic deodorization; an odor detection device, which is used for detecting the concentration of odor in theindoor polluted space; a humidity sensor, which is used for detecting the humidity of the microorganism carrier; and a control device, which is used for controlling the atomization device to spray theactive microorganism bacterium solution to the microorganism carrier according to the humidity of the microorganism carrier, and controlling the high-energy ion equipment and the photocatalytic deodorization lamp according to the concentration of the odor for photocatalytic deodorization under ion fresh air. The odor treatment system provided by the invention realizes deodorization of a pollutedspace which is not prone to collection and concentrated treatment of odor and is low in concentration.

The invention provides an electrical perforating device for electrical construction and a using method. The electrical perforating device comprises a table body, wherein a limiting plate is arranged on the upper portion of the table body and is parallel to the table body, and a distance adjusting component is arranged between the table body and the limiting plate; supporting frames are arranged atthe two ends of the top of the table body, a movable transverse plate is arranged between the two supporting frames, the movable transverse plate is in sliding connection with the supporting frames,and first limiting components are arranged between the movable transverse plate and the supporting frames; and a movable rod is arranged on the movable transverse plate, the movable rod is slidably connected with the movable transverse plate, a second limiting piece is arranged between the movable rod and the movable transverse plate, a motor is arranged at the bottom of the movable rod, a rotating sleeve is arranged at the output end of the motor, a drill bit is arranged at the bottom of the rotating sleeve, and the rotating sleeve is in threaded connection with the drill bit. The electricalperforating device for electrical construction is reasonable in structure and convenient to operate, avoids loss caused by deformation and even breakage of metal accessories in a perforating process,improves the use safety and accuracy and saves the cost.

The invention discloses a circulation-type raisin winnowing device based on dynamic shaking and dynamic vibrating, and relates to the technical field of raisin processing. The device comprises a firsthousing, both front and rear sides of the bottom of the inner wall of the first housing are fixedly connected with shaking devices, both left and right sides of the shaking devices penetrate throughthe first housing and extend to the outer side of the first housing, and first limiting blocks and first rotary discs are fixedly connected with both left and right sides of the shaking devices respectively. According to the device, a straight tooth block is pushed by a sector tooth block to perform left and right reciprocating movement to allow a control device to generate vibration, and therefore the current problem that winnowed raisins easily enter an adjacent collecting box when raisins at the edge of a collecting box are accumulated to a higher position exceeding the height of the collecting box resulting in lower winnowed raisin accuracy is effectively solved.

The invention provides a continuous and automatic aerobic bacterium cultivation system. The continuous and automatic aerobic bacterium cultivation system comprises a bacterium cultivation area, wherein a plurality of shaking platforms which are connected with one another to form a production line are arranged in the bacterium cultivation area, and bacterium cultivation boxes are driven by a plurality of push-pull conveying devices to walk along the production line of the shaking platforms, so that bacterium cultivation is completed. The structure of each bacterium cultivation boxes lies in that openable side wall structures are arranged on two sides of a box body, a culture blanket is arranged in the box body, a culture medium is arranged on the inner surface of the culture blanket, the culture blanket forms a water storage structure in the box body, and when the side walls of the box body are opened, the two sides of the culture blanket slide down to enable bacterium liquid to flow out. By adopting the scheme that the push-pull conveying devices drive the bacterium cultivation boxes to move, continuous and automatic production of natto can be achieved, the moving time of the bacterium cultivation boxes and bean fermentation boxes in the bacterium cultivation area and a solid fermentation area is the time needed by the whole production, and therefore, continuous and automatic production of products is achieved.

The present invention discloses a metal powder production dust removal equipment with the collecting and screening functions. The equipment comprises a metal powder processing box, a dust removal screening box is arranged on one side of the metal powder processing box, and a purification box is arranged on the side, away from the metal powder processing box, of the dust removal screening box; wherein the outer wall of one side of the metal powder machining box is fixedly connected with a first connecting pipe, and the outer wall of one side of the dust removal screening box is fixedly connected with a draught fan. During use, the first motor is started to drive a first gear to rotate so as to drive a second gear to rotate, then the rotation of the second gear drives stirring blades and gathering blades to rotate, and the rotation of a first rotating shaft, the stirring blades and the gathering blades generates centrifugal force in a bearing cylinder, so that metal powder dust is gathered towards the middle. According to the equipment, through combined arrangement of the stirring blades, the receiving cylinder and other devices, dust entering the receiving cylinder is gathered and made to move downwards, dust flying is avoided, and the dust is not likely to be collected.

A powder recovery device of metal additive manufacturing equipment comprises a box. A box cover is arranged on the upper portion of the box, a first supporting frame is mounted at the bottom of the box, and a feeding hopper is arranged inside the box and located in the middle of the box; a feeding inlet is formed in the upper end of the feeding hopper, the upper end of the feeding inlet can penetrate through the box cover to be located outside, and a first discharging outlet is formed in the lower end of the feeding hopper; and an atomizing bin and a floating-down bin are arranged inside the box, and the floating-down bin is located at the bottom of the atomizing bin. First electromagnets are mounted in dust suction covers, and the first electromagnets are powered on so that metal powder can penetrate through through holes to enter the dust suction covers, and after stopping for a period of time, a control device controls a driving motor to rotate; the first electromagnets are poweredoff, and second electromagnets are powered on so that the metal powder can enter dust-removing cloth bags and can rapidly arrive at the lower ends of the dust-removing cloth bags under the attractionforce of the second electromagnets, meanwhile, second knocking rods knock the dust-removing cloth bags, thus the situation that the metal powder is pasted to the inner walls of the dust-removing clothbags is avoided, and the collecting speed is increased.

The invention relates to an aid, in particular to a blood drawing aid and belongs to the technical field of medical instruments. The blood drawing aid comprises a lining support and a pressurizer, wherein the pressurizer is arranged on one side of the lining support, a drawer is arranged at one end of the lining support, an arc-shaped groove matched with the arm is formed in the upper end face of the lining support, the pressurizer comprises an airbag connected with an air pump through a conduit, a hoop and loop fastener used for tightening the arm is arranged on the two sides of the airbag, and a deflation valve is arranged on the conduit. Due to the fact that the arc-shaped groove is formed in the upper end face of the lining support, a patient can be made to relax and feel comfortable during blood drawing, and the arm does not feel too tense; the air pump can be placed in the drawer arranged at one end of the lining support after being used, does not get lost easily and can be stored conveniently; due to the adoption of the airbag in the pressurizer, the pain caused by tightening the arm of the patient with a rubber hose is avoided, even pressurization can be achieved, subcutaneous congestion is avoided, using is convenient, and the working efficiency of medical staff is improved.

The invention belongs to the field of building materials, and particularly relates to a building material pulverizer, which is characterized in that a pulverizer body is internally provided with a feed port, airbag rollers, a filtering plate and a first piston barrel from top to bottom in sequence; a drive unit is also arranged in the pulverizer body; two airbag rollers are arranged and are rotatably connected with the pulverizer body; the outer wall of each airbag roller is fixedly connected with a plurality of bulges in the circumferential direction; each airbag roller is internally providedwith a hollow mandrel communicating with the airbag roller; the outer wall of the mandrel is fixedly connected with a plurality of elastic rods in the circumferential direction; the free ends of theelastic rods are fixedly connected with magnetic plates; the filtering plate is slidably connected in the pulverizer body; a first spring is connected between the lower end of the filtering plate andthe pulverizer body; the filtering plate has magnetism; the two end faces of the first piston barrel are sealed; the drive unit comprises a drive shaft and a driven shaft; and a second piston barrel is arranged in the pulverizer body. With the technical scheme of the present invention, problems that the crushed raw materials and uncrushed raw materials are difficult to separate are solved.

The invention discloses fruit and vegetable slicing equipment. The equipment comprises a rack, two material guiding devices, a pushing rod, a roller, a connecting rod and a supporting mechanism; the two material guiding devices are horizontally in mirror symmetry with each other, and each material guiding device comprises a shell, a first partition plate, a cutting mechanism, two sliding boards and a material hopper; opposite first and second side faces of each shell are communicated with each other, and the top face of each shell is provided with a feeding port; each first partition plate isvertically arranged in the corresponding shell; each cutting mechanism comprises a plurality of blades distributed at intervals, and each blade is of a triangular prism structure; every two sliding boards are slidingly located in two first spaces respectively and elastically connected with the side edge of the first side face of the corresponding shell; each material hopper is located above the corresponding shell, and the lower end of each material hopper is fixedly provided with a material guiding pipe; the pushing rod is horizontally located between the two shells; the circumferential surface of the roller is provided with a serpentine groove; the connecting rod is horizontally located between the roller and the pushing rod; the supporting mechanism is used for supporting the pushing rod. By means of the fruit and vegetable slicing equipment, the work of slicing garlic can be quickly and efficiently completed, an anti-oxidation solvent can be applied during cutting, and the qualityof obtained finished garlic slice products is improved.

The present invention relates to the technical field of coconut outer shell removal and particularly relates to a coconut outer shell removal device for coconut selling street pedlars. The coconut outer shell removal device comprises a material storage box; the bottom part of the inner cavity of the material storage box is fixedly connected with a coconut rotating positioning mechanism; the side surfaces of the top part of the material storage box are fixedly connected with two support plates; the top parts of the support plates are both fixedly connected with a bottom part of a top plate; theinside of the top plate is provided with a coconut position limiting mechanism; the side surfaces of the support plates are fixedly connected with two telescopic and wrapping outer shell stripping mechanism; the bottom part of the material storage box is fixedly connected with two material discharging pipes; the side surface of the bottom part of the material storage box is fixedly connected withsupport legs; and the side surfaces of the support legs are fixedly connected with a coconut outer shell collecting mechanism. The coconut outer shell removal device is suitable for removing coconutouter shells of coconuts, rapidly removes the outer shells of the coconuts, is more comprehensive for removing the outer shells of the coconuts to prevent the remaining coconut outer shells from affecting the beautiful appearances of the coconuts, and simultaneously punches the coconuts, which is convenient to insert drinking straws to suck up coconut juice.

The invention discloses a circulating raisin winnowing device based on power swaying and power shaking, and relates to the technical field of raisin machining. The circulating raisin winnowing devicebased on power swaying and power shaking comprises a first shell, wherein rocking devices are fixedly connected to the front side and the rear side of the bottom of the inner wall of the first shell,the left and right sides of the rocking devices penetrate through the first shell and extend out of the first shell, and the left and right sides of the rocking devices are fixedly connected with a first limiting block and a first rotary disc respectively. According to the circulating raisin winnowing device based on power swaying and power shaking, a fan-shaped tooth block pushes a straight toothblock to reciprocate left and right, so that a control device vibrates, and the problem that at present, raisins at the edge of a material collecting box are stacked high, and when the raisins are higher than the material collecting box, the winnowed raisins easily enter adjacent material collecting boxes, the precision of the winnowed raisins is low is solved.