29results about How to "Roll over stability" patented technology

The present application relates to a kind of automatic material dumping and box withdrawing method suitable for AGV car, which adopts the material dumping and box withdrawing structure including material box dumping mechanism, empty box conveying belt being arranged below material box dumping mechanism, material box transfer mechanism capable of transferring material box between material box dumping mechanism and empty box conveying belt, and comprising the following steps: S1, dumping material;S2, exit empty box.The present application realizes AGV car automatic turnover material box to dump bar material on one hand, turnover is stable, ensures that bar material is all fallen on feeding platform, reduces labor intensity and manpower cost;On the other hand, it realizes automatic empty box withdrawal, to facilitate AGV car to carry out next feeding action in time, effectively improves production efficiency;At the same time, opening direction is unchanged when empty box is withdrawn, to facilitate next material preparation.

The utility model relates to the technical field of welding robots, and discloses a clamping turnover mechanism for a welding robot workstation, which comprises a main body, two sides of the top surface of the main body are coupled with a clamping turnover assembly, the clamping turnover assembly comprises a turnover frame, the top surface of the turnover frame is provided with a clamping groove, and the top surface of the turnover frame is provided with the clamping groove. A fixed clamping plate is fixed to one end of the overturning frame, a rotating shaft rod is fixed to the center of the outer wall of the fixed clamping plate, one end of the rotating shaft rod is sleeved with a bearing frame, and the other end of the overturning frame is fixedly connected with a driving shaft rod. Turnover adjustment is carried out through the driving shaft rod and the turnover frame which are in driving connection with the torsion motor, turnover of materials clamped by the turnover frame is achieved, the driving clamping plate in the turnover frame can be matched with the transmission telescopic process of the telescopic rod to keep stable clamping of the materials, and the driving clamping plate is matched with the rubber pad to increase surface friction force. And the overturning process after clamping adjustment is kept stable, material shaking is avoided, and convenience is provided for the welding process.

The utility model discloses a kind of lead ingot turnover devices, it includes: two rotary cylinders are placed in the left and right ends of turnover device respectively;Four supports one is placed in the front and back two sides of two rotary cylinders, and the central rotating shaft of rotary cylinder is rotatably connected with support one;Two caterpillar belts are symmetrically around on the outer side of two rotary cylinders, and the outer surface of caterpillar belt and rotary cylinder is clamped;Rotary motor one is placed on the outer side of one of support one, and the rotating shaft of rotary motor one is fixedly connected with the central rotating shaft of rotary cylinder;Two supports two are placed in the front and back two sides of caterpillar belt respectively;Two baffle plates are placed above two caterpillar belts respectively;A plurality of telescopic cylinders are divided into two groups, and the telescopic rod of telescopic cylinder is fixedly connected with the outer side of baffle plate after passing through support two;Turnover plate is placed between two caterpillar belts;Turnover plate is reciprocatingly rotated between two caterpillar belts by rotary motor two.The utility model has the beneficial effects that: the purpose of stable turnover of multiple specifications of lead ingot can be applied.

The utility model discloses a key dispensing upper cover air tightness testing device, which belongs to the technical field of air tightness testing, and comprises a tool for testing air tightness, a positioning seat is arranged in the tool, the tool is positioned in a groove III, and an instrument panel of which the air tightness is to be tested is arranged in the tool; the rear end of the positioning seat is fixedly connected with a driving mechanism, the front end of the driving mechanism is rotatably connected with the top of a pressing plate, and the front end of the top of the pressing plate is fixedly connected with two hasp base plates. Uniform-speed opening and closing of the pressing plate and controllable adjustment of pressing speed and force are achieved through the air cylinder driving mechanism, impact force is prevented from damaging a precise instrument panel, and meanwhile the adaptability of equipment to jigs with different heights is enhanced through the stroke adjusting characteristic of the air cylinder; a rotating pair mechanism formed by the flip cover base and the single lug seat ensures that the pressing plate is stably turned over along a fixed axis, deflection errors generated by traditional hinge connection are eliminated, and it is guaranteed that the press-fit position is accurately repeated.

This utility model provides a packaging carton flipping device, including horizontally arranged first and second conveyor belts and a stop shaft. The first conveyor belt transports the carton, and the second conveyor belt is offset vertically from the first conveyor belt. The stop shaft is located below the carton and in a special position, offset from the vertical center axis of the carton and behind the moving direction of the second conveyor belt. During operation, the carton is conveyed by the first conveyor belt and comes into contact with the stop shaft. The bottom is obstructed, and the top flips 90° around the stop shaft due to inertia and falls into the second conveyor belt. This device solves the problems of complex structure, high cost, easy damage to the carton, and unstable flipping of traditional flipping devices. Flipping is achieved through a simple mechanical structure, reducing cost and maintenance difficulty; the special position of the stop shaft and the soft rubber cover reduce damage to the carton; the design of the limiting plate and rotating stop shaft ensures smooth and accurate flipping. The conveyor belts are made of soft plastic belts, and the upper belt is supported by soft rubber tubes, further improving the stability and service life of the device, effectively improving the efficiency of the packaging production line and product quality.

This invention relates to a gear welding device and method for a press, belonging to the field of press manufacturing. The technical solution is as follows: A gear welding device for a press includes a work platform with a ground rail. A transfer trolley is movably mounted on the ground rail to carry the gear to be welded. Positioners are mounted on both sides of the ground rail, each equipped with a rotatable gripper. A gantry frame is also mounted on the work platform, spanning the ground rail. A welding robot is movably mounted on the gantry frame, its movement direction being horizontal and perpendicular to the ground rail. The welding robot is equipped with a machine vision module. This solution, through the positioner grippers, can precisely achieve 180° rotation of the gear, providing a stable posture adjustment basis for double-sided welding. The welding robot, combined with the machine vision module, enables automated and high-precision acquisition of weld information, providing data support for intelligent welding path planning.

The invention relates to an intelligent automatic bag turning gantry crane which comprises a rack and a bag turning device, the bag turning device comprises a plate hook mechanism and a supporting and turning mechanism, and the supporting and turning mechanism is installed at one end of the rack; the plate hook mechanism is installed on the machine frame, can reciprocate in the direction from one end of the machine frame to the other end of the machine frame and is used for hoisting and conveying the cinder ladles and conveying the cinder ladles to the supporting and overturning mechanism, and meanwhile the plate hook mechanism is matched with the supporting and overturning mechanism to conduct ladle overturning treatment on the cinder ladles. The slag ladle overturning device has the beneficial effects of being compact in structure, reasonable in design, capable of achieving stable conveying and overturning of slag ladles in the metallurgical operation process, high in operation efficiency, concentrated in slag dumping, convenient to conduct follow-up centralized treatment, safe and reliable.

The utility model discloses a kind of double helix shot blasting machine feeders, it is related to shot blasting machine technical field, and the utility model includes bottom plate, the top of bottom plate is equipped with feeding mechanism, for the workpiece needing to be processed by shot blasting machine is fed, feeding mechanism includes: feeding assembly includes the top plate of being arranged on the upper portion of bottom plate, the upper portion of top plate is fixedly installed with the material box of several annular array distribution, the top of top plate is fixedly installed with several pusher cylinder, the mobile frame is moved by the driving cylinder in the application, and the clamping groove of limit frame is cooperated with mobile frame, so that the sliding groove overturns the limit of mobile frame, guaranteeing that turnover plate is stably overturned, so that it is conveniently unloaded when unloading, reset when feeding, so that it is stored in material box, simultaneously after turnover plate overturns, under the drive of pusher cylinder, push plate is moved to one side, so that it is pushed into double helix shot blasting machine equipment, and the workpiece surface is operated, such as rust removal.

The utility model belongs to the technical field of reinforcing steel bar processing, and discloses a turnover device and a processing preparation system, the turnover device comprises a seat body, a turnover frame and two driving mechanisms, the turnover frame comprises a side supporting sheet body, an edge supporting sheet body, an adapter sheet body and supporting rotating shafts, the output ends of the two driving mechanisms are connected to the two supporting rotating shafts in a one-to-one correspondence mode, and the two driving mechanisms are connected with the two supporting rotating shafts in a one-to-one correspondence mode. The processing preparation system comprises the turnover device. According to the three-dimensional net overturning device, the two driving mechanisms drive the overturning frame to be switched between the bearing state and the laying-down state, so that the stress of the overturning frame is more balanced, overturning is more stable, the side supporting sheet bodies and the edge supporting sheet bodies on the overturning frame are matched with each other, and the side supporting sheet bodies can be attached to one side face of a three-dimensional net; the temple sheet body can be attached to one end face of the three-dimensional net in the width direction, so that the three-dimensional net is evenly stressed, deformation and damage of the three-dimensional net are avoided, the quality of the three-dimensional net is guaranteed, and the three-dimensional net is safer and more reliable.

The utility model relates to maintenance device technical field especially relates to a kind of turnover device, including support frame, turnover assembly and moving assembly;Support frame includes two opposite fixed load-bearing beams, two load-bearing beams are spaced apart along left and right direction, and load-bearing beam is along front-back direction extension setting;Turnover assembly includes first connecting piece, first turnover piece and second turnover piece, first connecting piece is slidably connected in two load-bearing beams, and first turnover piece includes first turnover lever and first driver, and second turnover piece includes second turnover lever and second driver, and first turnover lever and second turnover lever are arranged in first connecting piece, and first driver is connected to first turnover lever, and second driver is connected to second turnover lever;Moving assembly is arranged in load-bearing beam, and moving assembly is connected to first connecting piece, and moving assembly drives first connecting piece to move along front-back direction.The utility model turnover device is high in safety and high in work efficiency during turnover operation.

The utility model relates to the technical field of food processing, and discloses a rice soaking device for rice noodle production, which comprises an outer cylinder, and an overturning component is arranged in the outer cylinder. According to the rice soaking device for rice noodle production, through the arranged overturning assembly, in the inner cylinder lifting process, a wave groove guides a limiting block and an inner cylinder to shake left and right, rice grains are evenly distributed, slight caking caused by starch dissolution is scattered, the mobility is improved, the situation that the rice grains are stacked into clusters on the inner wall or the bottom is further reduced, and the rice noodles are more uniform. In the process that the rice is poured out by inclining the inner barrel, the limiting blocks are movably connected with the protruding blocks, so that the inner barrel vibrates in the overturning process, due to the influence of vibration, the adhesive force between rice grains can be reduced, particularly viscous substances formed after starch is dissolved can be dispersed through vibration, the rice grains can flow more easily, and the rice grains can be prevented from falling off. And the discharging thoroughness is further improved.

The utility model discloses a testing arrangement for semiconductor processing, including conveying frame, the inside of conveying frame is provided with conveyer belt, the front end and rear end of conveyer belt upper middle are respectively arranged with the positioning board of symmetry, the outside of two positioning boards all rotatory mounting has power box, the side of power box away from positioning board is fixedly installed with transmission plate, and the inside of power box at left side is provided with motor cavity, the motor cavity inside of power box is fixedly installed with motor, and the output of motor is fixedly connected with positioning board, the both sides in conveying frame inside are respectively arranged with the slot of symmetry, the both sides of conveying frame are respectively arranged with fixed folding plate of symmetry. It has realized the turnover ability, has increased the practicality, thereby solved the problem that does not have the turnover structure when the appearance defect of semiconductor device is tested, is not favorable to the defect detection of semiconductor device positive and negative sides.

This invention discloses a turning machine for producing subway tunnel segments, belonging to the field of tunnel segment turning technology. It includes a base frame, with adjustable rotating components connected to both sides of the upper surface of the base frame via short columns. A turning frame is mounted on each of the adjustable rotating components. The turning frame, driven by a hydraulic cylinder mounted within the base frame, rotates the tunnel segments placed on its surface from 0° to 180°. An adjustable support component is inserted into the turning frame. Through the set turning frame and adjustable support component, relay support is achieved between the two turning frames. Combined with the hydraulic cylinder drive, the turning of the tunnel segments from 0° to 180° can be stably completed without auxiliary hoisting, improving turning efficiency. The adjustable support component on the turning frame allows adjustment of the support rod protrusion height by rotating the threaded rod, reducing stress concentration, preventing tunnel segment damage, and adapting to the production needs of tunnel segments of different specifications.

This utility model discloses a substrate feeding mechanism and feeding device, relating to the field of substrate processing technology. The substrate feeding mechanism includes a first transmission component and a flipping component. The first transmission component includes a transmission structure and a clearance space disposed between the transmission structure, the transmission structure being configured to transmit substrates. The flipping component includes a lifting frame, a rotating shaft, a flipping arm, and a limiting claw. The rotating shaft is rotatably mounted on the lifting frame and extends along a first direction. The flipping arm is connected to the rotating shaft. The lifting frame is liftable, and the rotating shaft and flipping arm can pass through the clearance space. The flipping arm is equipped with multiple suction cups for adsorbing and fixing the substrate. The limiting claw is disposed on the flipping arm and abuts against the substrate in a second direction, the first direction and the second direction forming an angle. This substrate feeding mechanism can support the substrate during flipping, preventing the suction cups from being pulled, ensuring the adsorption effect between the suction cups and the substrate, protecting the suction cups, and extending their service life.

The utility model provides a semiconductor material deformation monitoring device, which relates to the technical field of semiconductor production, and comprises a tank body and a sound wave detection head, the inside of the tank body is fixedly connected with an overturning detection assembly, the top end of the overturning detection assembly is fixedly connected with a pressure assembly, and the top end of the tank body is fixedly connected with a feeding assembly. The overturning detection assembly comprises a motor and a connecting plate, the outer side of the motor is fixedly connected to the tank body, the driving end of the motor is fixedly connected with a top cover, the bottom end of the top cover is fixedly connected with a guide plate, and one end of the connecting plate is fixedly connected with a guide sliding column; the innovative design concept enables detection and analysis of the semiconductor material to be more flexible and comprehensive, careful observation can be performed from multiple angles, and researchers can accurately monitor the deformation process of the material, so that behaviors and characteristics of the material under different conditions can be better known, and the detection accuracy of the semiconductor material is improved. Therefore, the rupture of the thin film caused by uneven stress generated in the temperature change process is effectively avoided.

This utility model discloses a device for detecting the flatness of a polyhedral prism's cut surface, specifically relating to the field of flatness detection technology. It includes a base, a two-dimensional translation stage fixedly connected to the top of the base, a white light interferometer mounted on the front side of the translation stage, and a limiting component and a cleaning mechanism mounted above the base. The limiting component includes a placement stage fixedly connected to the top of the base. Two sliding grooves are formed on the upper surface of the placement stage, and a first electric push rod is installed inside the placement stage. A movable plate is fixedly connected to the output end of the first electric push rod, and the movable plate is slidably connected to the inner sides of the two sliding grooves. By setting the limiting component and the cleaning mechanism, this utility model can maintain the same position for different surfaces during detection, reducing detection data errors caused by clamping deviations. An electrostatic brush is used to adsorb dust on the surface of the polyhedral prism and neutralize static electricity, reducing interference from dust adsorption during flatness detection.

The utility model discloses a kind of auxiliary processing frock of grooved shell, the left and right ends of base are symmetrically provided with side groove, screw rod is rotatably installed in two groups of side groove, the lower end of two groups of screw rod is fixedly installed with synchronous wheel, synchronous belt is sleeved on two groups of synchronous wheel, lifting frame is threadedly sleeved on two groups of screw rod, the upper end of two groups of lifting frame is provided with overturning assembly, and multiple groups of fixed components are provided on overturning assembly;The utility model guarantees the stability and accuracy of grooved shell in overturning process by the design of overturning assembly, avoids the positioning error possibly generated when reinstallation positioning, to ensure the machining precision, reduce production cost, and the fixed component on frock can firmly fix grooved shell, prevent it from moving or shaking in processing process, further ensure processing quality and safety.

This utility model discloses a reversible eyeglasses belonging to the field of eyewear technology, including a mounting frame, a reversible frame, and temples. The reversible frame is hinged to the mounting frame via a hinge assembly. One end of the hinge assembly passes through the reversible frame, and the other end is fixedly connected to the end of the mounting frame near the temple. The reversible frame and the mounting frame are overlapped, with the hinge assembly passing through the reversible frame and the other end welded to the mounting frame. The reversible frame flips relative to the mounting frame via the hinge assembly, and the mounting frame is located inside the eyeglasses. When worn, the reversible frame does not contact the face or brow bone, effectively improving the comfort of the eyeglasses. Furthermore, when the user needs to raise their eyes, the reversible frame can be rotated directly to a similar horizontal position to the mounting frame without moving the entire eyeglasses, reducing friction between the temples and the ears, and minimizing discomfort caused by the temples sliding against the head, significantly improving the applicability of the reversible eyeglasses.

The invention discloses a pretreatment system for protecting active ingredients of traditional Chinese medicinal materials, and relates to the field of traditional Chinese medicinal material treatment.The pretreatment system comprises a box body, a turnover mechanism and a control mechanism, a plurality of spray guns are fixedly connected to the two sides of the top end of the box body respectively, and the turnover mechanism comprises a connecting frame fixed in the box body; two connecting plates which can jointly form a disc shape are slidably connected into the connecting frame, and a plurality of fixing shafts which are distributed at equal intervals and used for clamping traditional Chinese medicinal materials from the upper side and the lower side are fixedly connected to one ends of the two connecting plates correspondingly. And when the traditional Chinese medicinal materials are overturned, dirt on the surfaces of the traditional Chinese medicinal materials is further removed through a friction sleeve and a rolling structure of the upper and lower end faces of the traditional Chinese medicinal materials, and the rotating directions of the fixed shafts in every two adjacent tooth chains are opposite, so that the traditional Chinese medicinal materials can be stably overturned on the fixed shafts while being rubbed to remove the dirt.

The invention discloses an automatic turnover device and method for a marine diesel engine cylinder block. The automatic turnover device for the marine diesel engine cylinder block comprises a pit, a supporting bracket, a turnover support and two driving assemblies. The overturning support comprises two supporting frames which are vertically connected, and the overturning support has a first posture in which the outer wall of one supporting frame abuts against the supporting bracket in parallel and a second posture in which the outer wall of the other supporting frame abuts against the supporting bracket in parallel. Each driving assembly comprises at least one hydraulic cylinder, one end of each hydraulic cylinder is rotationally installed on the bottom face of the pit through a supporting base, the other end of each hydraulic cylinder penetrates through the corresponding supporting bracket and is hinged to the outer wall of the corresponding supporting frame, and the two driving assemblies are matched to drive the overturning support to overturn between the first posture and the second posture in a reciprocating mode. The driving assembly is simple in structure and convenient to control, mounting steps of a turnover device mechanism and the air cylinder body can be simplified, meanwhile, steel wire ropes are prevented from pulling the surface of the air cylinder body, and operation efficiency and product quality are improved.

This utility model discloses an anti-deformation control flipping fixture for automobile frames, relating to the field of automobile frame processing technology. It includes a fixed base plate and a flipping assembly. A support plate is mounted on the left side of the upper surface of the fixed base plate, and a control body is located on the right side of the upper surface of the fixed base plate. The flipping assembly is disposed on the surface of the control body and includes a servo motor, a hydraulic push rod, a limiting inner groove, a first limiting rod, a support crossbar, a limiting ring, an annular limiting groove, a second limiting rod, and a fixed plate. The servo motor is disposed on the right surface of the control body, and its output end is connected to the hydraulic push rod via a coupling. This anti-deformation control flipping fixture for automobile frames enables stable flipping of the automobile frame through the flipping assembly, facilitating multi-faceted processing of the automobile frame and improving processing efficiency. The limiting assembly enables stable limiting of the automobile frame, preventing deformation of the frame during the processing flipping process.

The utility model provides a movable forge piece turnover device which comprises a support located below a forging mechanism, a machining base with the bottom connected with a plurality of bases is further arranged below the forging mechanism, a containing cavity is formed among the bases, the support is arranged in the containing cavity in a lifting mode, and L-shaped supports connected with the support in a sliding mode are symmetrically arranged at the top of the support. The other end of the L-shaped support extends to the position above the machining base, a first through groove is formed in the top of the L-shaped support, a first motor is fastened in the first through groove, a first lead screw is connected between the output end of the first motor and the inner wall of the first through groove, and a mounting frame is slidably arranged in the first through groove. The end, located in the first through groove, of the mounting frame is in threaded connection with the first lead screw, and the other end of the mounting frame is fixedly connected with a second motor. According to the utility model, the placing height of the two mounting frames and the distance between the two mounting frames can be adjusted according to the width and the thickness of the forge piece, so that the forge piece turnover processing device meets the turnover processing use of forge pieces with different sizes.

The present application relates to the technical field of tobacco processing, in particular to a kind of automatic tobacco stick cutting system and method;Including frame turning machine, intermediate conveying belt machine, slitting machine, loose belt machine and automatic control system;The frame turning machine is set in the front end of system, and can be lifted and turned over after the frame, and then the tobacco stick pile in the frame is transported to the next station;The intermediate conveying belt machine is connected with frame turning machine and slitting machine, and has the functions of buffer and accurate conveying;The slitting machine is provided with a flap mechanism, a second lifting mechanism, a cutter assembly and a knife pressing assembly, which can completely cut the tobacco stick pile after being transported from the intermediate conveying belt machine to the cutter assembly;In the process of controlling the frame turning of the frame turning machine, the tobacco stick pile is compressed by the discharge belt machine, so that the tobacco stick pile of different heights in the frame can be compressed, ensuring the integrity of the stacking form of the tobacco stick pile, and improving the subsequent cutting quality.

The application relates to the technical field of metallurgical preparation equipment, and provides a boat unloading mechanism, which comprises a rack, a first driving element, a turnover bin, a crushing assembly, a first knocking assembly and a second knocking assembly, a feeding port is arranged on one side of the rack, and a discharging port is arranged below the feeding port; the turnover bin is provided with an extension inlet corresponding to the feeding port; a limiting assembly for limiting the boat is arranged in the turnover bin; the crushing assembly is arranged between the feeding port and the extension inlet and is used for pre-crushing materials; in an initial state, the boat enters between the feeding port and the extension inlet, the crushing assembly pre-crushes the materials in the boat and then enters the turnover bin, and the limiting assembly limits the boat; the first driving element drives the turnover bin to rotate in the rack; when the boat faces the discharging port, the boat is in a discharging state; the first knocking assembly rotates and knocks the boat; and the second knocking assembly knocks the boat in the vertical direction. Therefore, the production efficiency can be improved, and the product quality can be ensured.

The invention relates to special-shaped metal injection molding-detection integrated equipment based on MIM alloy, and belongs to the technical field of MIM alloy, the special-shaped metal injection molding-detection integrated equipment comprises an equipment main body, a taking mechanism is fixedly mounted on one side of the equipment main body, a molding mechanism is arranged in the equipment main body, and an injection mechanism is fixedly mounted on the upper surface of the equipment main body; a conveying mechanism is arranged on one side of the equipment body, two detection mechanisms and a driving mechanism are fixedly installed on the upper surface of the conveying mechanism, the driving mechanism is arranged between the two detection mechanisms, a sorting table is arranged on one side of the conveying mechanism, and a defective product box is arranged on the side, away from the conveying mechanism, of the sorting table. According to the invention, through the arrangement of the turnover mechanism, a product can be turned over, it is ensured that the product can be comprehensively detected, meanwhile, the turnover stability can be ensured, and a to-be-detected surface can be accurately detected by the detection mechanism, so that the effects of comprehensive detection, low defective rate and high detection efficiency are achieved.

The utility model discloses a kind of turnover machines, including rack, arc-shaped turnover frame, the motor of driving arc-shaped turnover frame rotates on rack, motor is fixed on rack, the arc shape of arc-shaped turnover frame is 3 / 4 circle, arc-shaped turnover frame has product mounting plate, product mounting plate is installed with the product to be turned over, arc-shaped turnover frame has arc bottom surface, and the two sides of arc bottom surface are respectively provided with transmission chain;Rack is provided with transmission shaft, and the both ends of transmission shaft are rotatably installed on rack by bearing, and the middle part of transmission shaft is fixedly provided with auxiliary sprocket, and both ends are fixedly provided with driven sprocket;The output shaft of motor is provided with main sprocket, and main sprocket is meshed with auxiliary sprocket and is provided with synchronous chain;Two driven sprockets are meshed with two transmission chains respectively;The front and rear positions of the both sides of rack are provided with guide wheel, and the guide wheels of same side are distributed in the front and rear ends of transmission shaft.The utility model can improve the stability of turnover machine turnover.

The fertilizer spreading mechanism comprises a control box, a quantitative turnover mechanism, a discharging and dredging mechanism and a dredging auxiliary mechanism, the quantitative turnover mechanism comprises a driving motor, a rotating shaft, a quantitative shaft, a quantitative groove and a scraping plate, and the discharging and dredging mechanism comprises a dredging pipe, a rotating sleeve, a matching groove, a rotary pushing block, a rotary pushing spring, a limiting plate and a dredging plate. The quantitative overturning mechanism can accurately control the amount of fertilizer overturned each time through cooperation of a quantitative groove and a scraper blade, uniform spreading of the fertilizer is guaranteed, the fertilizer spreading precision is improved, and due to the design of a discharging dredging mechanism, a dredging pipe, a rotating sleeve, a rotary pushing block, a rotary pushing spring and other assemblies, the phenomenon that the fertilizer is blocked in the discharging process is effectively avoided; the combination of the rotary pushing spring and the rotary pushing block enables the dredging mechanism to have a flexible cleaning function.