64 results about "Grain distribution" patented technology

The invention relates to the technical field of 3D printing, and discloses a fiber reinforced composite material 3D printer and a printing method, current deposition tows are heated / cooled under the action of a preset interlayer pressing force through an interlayer pressing device, interlayer fusion can be promoted, the interlayer bonding strength can be improved, the heat history in the wire cooling process can be eliminated, and the 3D printing quality of the fiber reinforced composite material is improved. The crystallization behavior, the grain size and the grain distribution of a polymer in a printing wire material are controlled, and the microscopic uniformity of a composite material printing product is improved. The side face and the upper surface of the current deposition tow are subjected to hot-pressing shaping through the inter-channel pressing device, meanwhile, secondary hot-pressing is conducted on the adjacent printing layer deposition tow, resin of the current deposition tow and resin of the adjacent printing layer deposition tow can be melted and flow, so that the inter-channel gap between the adjacent printing layers is filled, and the printing effect is improved. And the inter-track bonding strength is improved.

The present invention relates to the technical field of elevators, and more specifically, to a grain elevator based on modern agricultural machinery and equipment, comprising a base, an elevator structure, a drive structure, a feeding structure, a rotating structure, and an opening and closing structure. The setting of the feeding structure avoids the blockage problem caused by excessive accumulation of grain at the elevator feed port, making the grain distribution more uniform, while facilitating operators to add grain to the equipment and improving flexibility. The setting of the rotating structure facilitates rapid adjustment of the direction of the discharge pipe on the elevator, thereby facilitating the delivery of grain to grain storage tanks in different directions, avoiding the adjustment of the overall direction of the elevator and improving operational efficiency. The setting of the opening and closing structure can flexibly adjust the valve opening according to production needs, accurately control the discharge flow of materials such as grain, and quickly cut off the discharge, with strong flexibility.

The invention relates to the technical field of grain drying equipment, in particular to an electric rapid grain discharging device of a grain dryer and an intelligent control method, and the electric rapid grain discharging device comprises a grain storage bin, a grain distributing assembly, a conveying assembly and an intelligent regulation and control unit. The grain distributing assembly achieves flexible grain discharging through a rotating disc and an adjusting ring, the conveying assembly adopts a conveying belt with protruding strips to prevent grain from sliding, and the intelligent regulation and control unit combines multi-sensor data and a fuzzy logic algorithm to dynamically adjust the grain discharging speed and flow. Through structure optimization and intelligent control, the grain discharging efficiency, stability and adaptability are remarkably improved, the problems of unstable flow and low intelligent degree in the prior art are solved, and reliable technical support is provided for modernized agricultural production.

The utility model discloses a wide-grain filling device and a powder distributing machine. The wide-grain filling device comprises a wide-grain distribution hopper, a wide-grain distribution frame and a wide-grain rotation driver; the wide-grain distribution hopper is provided with a wide-grain feeding channel; the wide-grain material distribution frame is provided with a long-wide material distribution opening, and the input end of the long-wide material distribution opening is communicated with the output end below the wide-grain feeding channel; the length-width ratio of the length-width distribution opening is greater than 1; and the wide-grain rotation driver is used for driving the wide-grain material distribution frame to rotate and adjusting the length direction and the width direction of the length-width material distribution opening. According to the scheme, width control over the filling texture can be achieved, the filling efficiency of the width texture is improved, the plate blank can form the three-dimensional, natural, unique and attractive texture, the texture is closer to the natural texture, and the problems that the texture of an existing artificial stone plate blank lacks the three-dimensional sense and the natural sense, and the filling efficiency is low are solved.

The utility model relates to a fermented grain distribution state detection device which comprises a detection part arranged above a conveying part, the detection part comprises a first detection rod and a second detection rod which are sleeved with each other and can rotate independently, and the two detection rods respectively extend towards the direction of the conveying part to form at least one material touch block; when fermented grains pass through the transmission part area corresponding to the material touch block, the material touch block drives the detection rod corresponding to the material touch block to rotate by means of pushing force applied to the material touch block by the fermented grains, the end parts of the two detection rods are respectively and rotatably supported in the bases, a detection unit is arranged in each base, and the detection units are respectively connected with the detection rods. Each detection unit is configured to output a signal representing the distribution state of the fermented grains on the conveying part in response to the rotation of the corresponding detection rod.

The refrigerant valve comprises a valve seat, the crystal phase organization of the valve seat is in equiaxed grain distribution, and the forming process of the valve seat comprises a warm upsetting process. The forming process of the valve seat in the refrigerant valve comprises the warm upsetting process. The warm upsetting process can make the base body of the valve seat deform plastically, close the cracks around the inclusions in the base body, and further reduce the leakage of the refrigerant in the refrigerant valve.

This invention relates to the field of wafer appearance inspection formulation technology, specifically to a method, equipment, and system for creating a wafer appearance defect inspection formulation program. The method includes the following steps: Step S1: Loading the wafer and confirming its information; Step S2: Setting wafer angle correction to level the wafer; Step S3: Wafer offset correction to align the wafer center with the motion platform; Step S4: Setting a grain distribution map, matching the theoretical distribution map with the actual distribution map in terms of position; Step S5: Determining the detection elements, randomly selecting a region from the grain distribution map as the detection element, and sequentially planning and selecting the remaining regions to determine multiple detection elements; Step S6: Sequentially acquiring photographs of the detection elements; Step S7: Detection training to form a wafer appearance defect inspection formulation program.

This invention discloses a three-dimensional ordered abrasive grain arrangement device, method, and additive manufacturing equipment, belonging to the field of high-performance abrasive tool manufacturing technology for semiconductors, stone, ceramics, and optical crystal materials. The device comprises three main parts: an abrasive grain arranger, a feeding mechanism, and a transfer mechanism. The abrasive grain arranger achieves ordered arrangement through negative pressure adsorption; the feeding mechanism employs a circular roller design to achieve continuous feeding of diamond abrasive grains; and the transfer mechanism achieves precise transfer of diamond abrasive grains through the cooperation of an electric cylinder and a lifting platform. This invention effectively solves the problems of scattered and uneven abrasive grain distribution leading to rapid tool wear and poor processing quality in traditional diamond abrasive tool manufacturing. Combining this device with laser additive manufacturing (SLM) equipment can achieve additive manufacturing with ordered abrasive grain agglomeration, significantly improving the sharpness, cooling characteristics, grinding performance, wear resistance, and service life of diamond abrasive tools.

The application provides a high-resolution reconstruction method for sheet microstructure modeling, and relates to the technical field of metal structure reconstruction. The application obtains sheet thickness and average grain size by performing morphology and EBSD characterization on a metal material, compiles a microstructure reconstruction program based on a space segmentation algorithm and a sheet division algorithm, and establishes a microstructure reconstruction model; the three-dimensional reconstruction model closest to the real microstructure is obtained by adjusting the control parameters in the reconstruction program, namely sheet orientation, grain distribution and iteration number; the application can quickly and accurately reconstruct the sheet microstructure, and the generated microstructure model has high compatibility and can be transplanted to various finite element software for simulation analysis.

The utility model discloses a grain drying tower with uniform grain feeding. The grain drying tower comprises a grain distributing hopper, a grain discharging opening of the grain feeding main pipe is communicated to a grain feeding opening in the upper end of the grain distributing hopper; the upper ends of the four grain distributing branch pipes are respectively communicated with four grain outlets in the lower end of the grain distributing hopper; the rotating shaft is vertically and rotatably arranged on the axis of the grain separating hopper; one end of each supporting beam is fixed to the rotating shaft; the at least three material guide plates are arranged on the at least three supporting beams in a one-to-one correspondence manner; the at least three groups of spacers are respectively arranged on the upper surfaces of the at least three guide plates; and a tower body. According to the grain drying tower with the uniform grain feeding function, it can be guaranteed that all parts in the tower body are fully and uniformly filled with grains to be dried, the technical problem that local grain shortage possibly occurs in the tower body is effectively solved, the grain drying tower can be suitable for grain drying towers of different specifications, and the grain drying quality is effectively guaranteed.

The invention relates to the technical field of electromagnetic shielding, and discloses an electromagnetic shielding film and a circuit board, the electromagnetic shielding film comprises a metal shielding layer, the metal shielding layer comprises a first crystal grain distribution space and a second crystal grain distribution space, and the first crystal grain distribution space and the second crystal grain distribution space are adjacent in the thickness direction of the metal shielding layer; the metal shielding layer comprises a first surface and a second surface which are oppositely arranged, the first crystal grain distribution space is located in an area which extends inwards from the first surface and / or the second surface by 10%-30% of the thickness of the metal shielding layer, and the average crystal grain size of the first crystal grain distribution space is smaller than that of the second crystal grain distribution space. The first crystal grain distribution space and the second crystal grain distribution space cooperate with each other, so that the risk of fracture of the metal shielding layer is reduced, and the bending resistance and fracture resistance of the metal shielding layer are improved.

The utility model belongs to the technical field of grain screw conveyor screening, and particularly relates to a grain conveyor with a screening function, which comprises a grain feeding barrel and a support frame, the grain feeding barrel is fixedly mounted at the top of the support frame, a barrel cover is fixedly mounted at the top of the grain feeding barrel, and a conical barrel is fixedly mounted at the bottom of the grain feeding barrel. A transmission barrel is fixedly mounted at the bottom of the conical barrel, a transmission motor is fixedly mounted on the left side of the transmission barrel, a screw rod is fixedly connected to the output end of the transmission motor, spiral blades are fixedly mounted on the surface of the screw rod, a grain outlet pipe is fixedly mounted at the bottom of the transmission barrel, an air blower is fixedly mounted on the left side of the grain outlet pipe, and a grain distribution box is fixedly mounted on the right side of the grain outlet pipe; and a screening mechanism is arranged in the grain distribution box. According to the grain conveyor with the screening function, grains are screened through the screening mechanism in the grain distribution box, so that the grains are screened more conveniently, and the situation that rhizomes, weeds and the like are mixed in the grains, screening is difficult, and the grain quality is affected is prevented.

The invention provides a preparation method of high-compaction and high-electrical-property iron phosphate, and belongs to the technical field of lithium ion batteries, and the preparation method comprises the following steps: S1, preparing an iron salt solution A, an iron salt solution B, a phosphorus salt solution A and a phosphorus salt solution B; s2, adding a doping agent A into the ferric salt solution A to obtain a doped ferric salt solution A; adding a doping agent B into the ferric salt solution B to obtain a doped ferric salt solution B; adding an oxidizing agent into the phosphorus salt solution A to obtain a phosphorus-oxygen mixed solution C; s3, adding the doped ferric salt solution A and the phosphorus-oxygen mixed solution C to generate an intermediate A; adding the doped ferric salt solution B and the phosphorus salt solution B to generate an intermediate B, so as to obtain mixed slurry D; s4, heat preservation; s5, washing, drying, calcining, demagnetizing and sieving to obtain high-compaction battery-grade iron phosphate; through multi-stage concentration control and grain composition, the prepared iron phosphate material has optimized grain distribution, and the compaction density can be remarkably improved.

The application discloses a mechanism for improving the pesticide application uniformity of a grain storage pesticide application machine and a control method thereof. The mechanism comprises a grain storage micro-spraying pesticide box shell, a plurality of motors installed in the grain storage micro-spraying pesticide box shell, a plurality of blades sequentially jointed into a ring-shaped opening at the head and tail, and the blades are arranged in one-to-one correspondence with the motors. One end of the blade is connected with the output end of the motor, the other end of the blade is provided with an arc-shaped hole, the blade is slidably connected with the output end of the motor connecting adjacent blades through the arc-shaped hole, a grain distribution hemisphere with an upward spherical surface is coaxially arranged in the center of the grain storage micro-spraying pesticide box shell, the ring-shaped opening formed by the blades is coaxially arranged above the grain distribution hemisphere, and a plurality of gravity detection sensors are connected with the outer edge of the grain distribution hemisphere at one end and connected with the grain storage micro-spraying pesticide box shell at the other end.

The invention discloses a macrosegregation prediction simulation method for directional solidification of a large ingot. The method specifically comprises the following steps: (1) obtaining thermophysical parameters of a material; (2) establishing a three-dimensional model of directional solidification and large cast ingots and carrying out grid division; (3) calculating mass, momentum, energy and solute transfer required by solidification of the metal material through a four-phase coupling model, wherein four phases comprise a liquid phase, an equiaxed crystal phase, a columnar crystal phase and a gas phase; (4) setting boundary conditions; (5) dynamically judging the growth areas of the isometric crystal and the columnar crystal based on the temperature gradient and the supercooling degree threshold value, wherein the columnar crystal only starts to grow from the casting mold wall and tracks the tip position of the columnar crystal; (6) iteratively solving the conservation equation of each phase until convergence, and outputting a liquid phase fraction, grain distribution and a solute concentration field; and (7) verifying by adopting an actually produced cast ingot, and quantifying the macrosegregation degree through a segregation index (SI).

The invention discloses a horizontal warehouse distributed multipoint warehousing system based on pneumatic conveying. The horizontal warehouse distributed multipoint warehousing system comprises a pneumatic grain conveying system and a horizontal warehouse in-warehouse material distribution system. The pneumatic grain feeding system comprises a Roots blower system, a transfer granary, a pneumatic mixing tee joint, a folding telescopic lifting frame and a first moving trolley. The invention further discloses a single-side or double-side grain feeding system. The problems that in the grain warehousing process of a horizontal warehouse, equipment needs to be frequently moved and adjusted, and a large amount of labor force is consumed are solved, and mechanical, automatic, remote, uniform and rapid grain distribution operation is achieved through a pneumatic grain feeding and in-warehouse material distribution system.

The present invention provides a method for preparing a high-modulus, high-strength, and high-fatigue-resistant aluminum-based composite sheet. The method comprises subjecting an in-situ ceramic particle-reinforced aluminum-based composite material to a sequential semi-continuous casting, hot rolling, cold rolling, solution treatment, cold rolling, and aging treatment. The method for preparing the aluminum-based composite sheet provided by the present invention features a simple and rational process. The non-uniform distribution of in-situ ceramic particles forms a two-stage heterogeneous structure with a non-uniform grain distribution, achieving a multi-layered reinforcement structure and a microstructure that inhibits fatigue crack propagation. This method simultaneously improves the elastic modulus, tensile strength, fatigue limit strength, and fatigue crack propagation resistance of the aluminum-based composite sheet, and can be industrially produced using existing industrial equipment.

The application discloses a kind of high-purity aluminum target blank and preparation method thereof, belong to material processing technical field;Using the preparation method of high-purity aluminum target blank provided by the application can obtain the high-purity aluminum target blank of grain size <200 μm, (100) face orientation content >70%;That is, the grain distribution of the high-purity aluminum target blank obtained is small, and the orientation distribution uniformity of the target blank is high, so as to ensure that the high-purity aluminum target blank prepared has high sputtering efficiency and good sputtering stability.And, the preparation method provided by the application is suitable for high-purity aluminum ingot with purity above 5N5, and also can obtain products with high size distribution uniformity;At the same time, the preparation method provided by the application has simple process flow, short preparation time, can reduce the preparation cost, and can be applied to actual production.

The upper-lower double-layer squat silo comprises a cylindrical silo body, a silo top equipment room is arranged at the top of the silo body, an inner cavity of the silo body is divided into an upper-layer storage space and a lower-layer storage space by a middle equipment layer, the middle equipment layer comprises an upper-layer partition plate and a lower-layer partition plate, and an upper-layer partition plate grain outlet is formed in the upper-layer partition plate; a center cylinder with the top extending into the position between the upper-layer partition plate and the lower-layer partition plate is arranged in the center of the lower-layer storage space, a center cylinder elevator is arranged in the center cylinder, and a grain distribution conveyor and a grain outlet conveyor are arranged between the upper-layer partition plate and the lower-layer partition plate. A grain outlet of the center cylinder elevator, a grain outlet of the upper partition plate and a grain outlet conveyor are correspondingly arranged, the grain distribution conveyor is used for conveying bulk grains to a grain distribution opening of the lower partition plate, and a bin body side elevator used for lifting the bulk grains to the height of the middle equipment layer and the height of the bin top equipment room is further arranged beside the bin body. The invention provides a double-layer squat silo capable of simultaneously storing two types of grains.

A squat silo gravity self-discharging type lifting multi-point material distribution device system comprises an upper buffering hopper, a fixed platform, a middle telescopic conical hopper, a lower buffering bin, a heavy hammer flap valve device, a lower material distributor, a triangular lifting platform, a material distribution groove, a winch and a steel wire rope from top to bottom. The material distributor is characterized in that the lower material distributor comprises a conical collecting and distributing hopper 1051, an annular material stabilizing barrel 1052, a conical multi-groove material distributor 1053 and a conical material distributing core 1054; according to the invention, the occurrence of bin deviation is fundamentally perfected and effectively avoided. The discharging ground clearance can be adjusted up and down according to needs, the phenomenon that grains are crushed and graded due to the fact that the height difference is too large is avoided, physical distribution is uniform, the effect is good, and unbalance loading caused by uneven grain distribution is avoided.

The utility model discloses a convenient to dismantle and wash's intelligent feeding device, including mutually cooperate and feed the main part and feeding bowl, feed the main part includes the grain outlet subassembly of being located below and the grain storage subassembly of being located above, the grain outlet subassembly includes the main shell with the installation cavity in the inside, the grain outlet bottom cover of being installed at the top of installation cavity and two sides with the side of main shell through a buckle structure detachable connection, install grain distribution drive assembly in installation cavity, install grain distribution vane in the top surface middle part of grain outlet bottom cover and with grain distribution drive assembly detachable connection and the downcomer, the grain storage subassembly includes the grain bucket of being penetrated with the top cover of being detachably installed at the top of grain bucket through a buckle structure and being grain storage space in the inside up and down both ends, and the grain bucket can be used for clamping and is established in the top of main shell and is detachable connection through a buckle structure between both. The utility model discloses through with grain distribution vane, grain outlet bottom cover, grain bucket and top cover all adopt detachable design, can conveniently wash them and take out.

The invention relates to the technical field of molecular sieve preparation, in particular to a preparation method of a 13X molecular sieve with a low silica-alumina ratio. The preparation method comprises the following steps: mixing a first aluminum source and an alkali source to obtain a first mixture; mixing a guiding agent, a first silicon source and the first mixture to obtain a second mixture; performing first aging treatment on the second mixture to obtain first aged slurry; adding a second silicon source and a second aluminum source into the first aged slurry to obtain a third mixture; performing second aging treatment on the third mixture to obtain second aged slurry; performing crystallization treatment on the second aged slurry to obtain a crystallized product; and purifying the crystallized product to obtain the 13X molecular sieve with low silica-alumina ratio. According to the preparation method, collaborative optimization of purity and grain distribution of the 13X molecular sieve with the low silica-alumina ratio is realized through step-by-step introduction of an aluminum-silicon source and dual-stage aging regulation and control.

According to the movable, rotary and telescopic grain loading belt conveyor and the loading method thereof, the outline of a compartment is scanned in real time through a vehicle recognition radar, meanwhile, the type of a truck compartment is recognized, material levels are equally divided based on short and medium-sized compartments, and the material stacking state of each equally-divided material level is synchronously monitored through a material level radar; the rotary walking wheel device is linked to drive the belt conveyor to move with the rotary supporting wheel as the circle center, full-automatic even distribution is achieved, adjustment of the telescopic belt conveyor is combined, the discharging port is always stabilized above the central axis of the compartment, the belt conveyor autonomously completes space pose adjustment, a truck does not need to move to adjust the material level to conduct distribution, and the labor intensity of workers is reduced. The problem that grain distribution is not uniform due to the fact that a driver adjusts the material level to move the vehicle is effectively solved.

This invention relates to the field of grain air-drying technology, specifically a grain discharge structure for a grain air-drying silo. The unloading pallet assembly includes several sets of fixed pallets relatively fixed to both sides of the inner wall of the grain discharge section frame. A flip-over pallet is detachably and rotatably connected between the fixed pallets in the same set. An adjustable latch, which can be quickly locked or released, is provided between the free end of the flip-over pallet on the side facing away from the grain discharge channel and the side wall of the grain distribution plate. Multiple horizontally arranged grain discharge plates are fixed along the length of the grain discharge section frame, positioned above and staggered with the grain distribution plates. This invention solves the problems of cumbersome pallet adjustment and disassembly, numerous parts, and inconvenient operation in emergency situations in traditional grain discharge structures. It achieves rapid locking, releasing, and flipping adjustment of the pallets, significantly improving the convenience and efficiency of operation and maintenance.

The utility model relates to the technical field of grain storage, and discloses a porous uniform unpowered distributing device, which comprises a distributor and a plurality of distributing pipelines connected with the distributor, the distributing pipelines are provided with a plurality of blanking holes, and the blanking holes are distributed at intervals along the length direction of the distributing pipelines. The grain distribution device has the advantages that grain distribution is achieved through the distributor and the multiple distribution pipelines, the multiple blanking holes are designed in each distribution pipeline, distribution is uniform due to the design of a porous structure, the distributor is of an unpowered design, manufacturing cost and operation cost are reduced, extra energy is not consumed, and environment protection and energy conservation are achieved.

The present application relates to a kind of preparation methods of post mould insert composite coating in the field of mould accessory manufacturing, comprising: extracting grain orientation and interface bonding state information from initial transition layer surface, using ion beam scanning technology to analyze grain distribution uniformity and interface stress, determine coating bonding force basic parameter;According to microdefect distribution data, the influence degree of defect on thermal fatigue resistance is analyzed by combining preset threshold range, and the real-time evaluation result of coating performance is obtained;Improved gradient composite coating is generated by optimized deposition process, and the change trend of microdefect is scanned again using online detection system, to determine the improvement range of coating durability and production efficiency;Key performance indicators are extracted from simulation results, combined with the data log of online detection system, process parameters are iteratively optimized by gradient descent algorithm, and the final stable coating preparation scheme is obtained.

The utility model discloses a grain arrangement mechanism used for a grain distribution truck and the grain distribution truck in the field of grain loading equipment, the grain distribution truck comprises a conveyor rack, a walking mechanism is arranged at the bottom of the conveyor rack, a belt conveying mechanism is arranged on the conveyor rack, the belt conveying mechanism comprises a main body support and a mechanism frame arranged at the front end of the main body support, and a conveying belt is arranged on the mechanism frame. The grain arranging mechanism is arranged at the front end of the mechanism frame and comprises a grain arranging support and a telescopic rod, one end of the grain arranging support is hinged to the mechanism frame, the fixed end of the telescopic rod is hinged to the mechanism frame, and the telescopic end of the telescopic rod is hinged to the grain arranging support. During grain distribution, the grain arrangement support is located at the folding station, normal conveying of bulk grains on the conveying belt is not affected, after grain distribution at one grain distribution point is finished, the telescopic rod can be used for driving the grain arrangement support to turn over to the grain arrangement station, then the grain distribution vehicle is moved, the grain arrangement support is used for preliminarily flattening conical grain piles, follow-up grain flattening operation of the grain flattening vehicle is facilitated, and work efficiency is improved. And the overall grain loading efficiency is improved.

The invention relates to the technical field of salt rock grain model construction, in particular to a salt rock grain model construction method based on multi-source experimental data and Voronoi polygons, which comprises the following steps: performing parameter extraction on a real salt rock sample to obtain a real grain diameter set and a real mechanical curve set, constructing a grain distribution probability density function according to the real grain diameter set, and calculating the grain distribution probability density according to the grain distribution probability density function. And constructing a geometric model based on the grain distribution probability density function to obtain a polygonal grain model, and performing mechanical property simulation based on the real mechanical curve set, the initial parameter vector, the mechanical loading condition and the polygonal grain model to obtain a salt rock property structure model. According to the method, the geometric authenticity and mechanical prediction accuracy of the salt rock grain model can be improved, and the reproducibility of the macromechanical behavior of the salt rock is enhanced.

The dust filtering device of the grain elevator comprises a grain distributing box and a dust removing mechanism, a grain conveying mechanism is fixedly arranged at the top end of the grain distributing box, a first supporting frame is fixedly arranged on the periphery of the lower end of the grain distributing box, and a second vibration motor is fixedly arranged on one side of the grain distributing box. A volute fan is fixedly arranged on one side of the dust removal mechanism, a first vibration motor is fixedly arranged on the other side of the dust removal mechanism, a dust removal pipe is fixedly arranged at the position, close to the lower end of the first vibration motor, of the other side of the dust removal mechanism, a collection box is arranged at the bottom end of the dust removal mechanism, and second supporting frames are fixedly arranged on the periphery of the lower end of the dust removal mechanism. The dust removal mechanism comprises a shell. The grain distribution box has the beneficial effects that most dust of grains can be stripped in front of a dust removal system through the grain distribution box, the device is provided with a quick disassembly structure, the filter screen can be disassembled and assembled without tools, and daily cleaning and maintenance are facilitated.

The present disclosure relates to a seed planting device, and proposes a grain seeding device (100). The grain seeding device (100) comprises at least one grain seeding unit (104) mounted on a frame (102). The grain seeding unit (104) comprises a container (108), a distribution mechanism (110) disposed in a housing (106), a drive shaft (116) and an outlet manifold (118). The distribution mechanism (110) comprises an inner cylinder (112) and a cylinder cover (114). A plurality of first slits (113) are configured on the inner cylinder (112). A plurality of second slots (115) are configured on the cylinder cover (114). The inner cylinder (112) rotates relative to the cylinder cover (114) to distribute seeds to the outlet manifold (118) through the slots (115). The drive shaft (116) connects the grain distribution mechanism (110) with a PTO shaft to rotate the inner cylinder (112) and the cylinder cover (114).