832results about How to "Improve fluency" patented technology

The invention discloses an agent task scheduling planning method, and relates to the technical field of agent scheduling. The method comprises the steps of analyzing a task instruction to generate atomic tasks capable of being independently executed, constructing a subtask dependency graph, and defining association constraints between the tasks; determining the real-time resource occupancy state of the intelligent agent to obtain a resource state tensor, completing resource-task association anchoring and dependency priority ranking in combination with the sub-task dependency graph, and generating a task priority sequence with resource constraint; performing dynamic capability matching and predictive load balancing calculation on the sequence through a task-agent adaptation model, and determining a target execution agent of each atomic task; and based on the target execution agent and the subtask dependency graph, performing time sequence scheduling arrangement and conflict resolution, and generating a collaborative execution scheme. The method improves the reasonability and efficiency of agent task scheduling, reduces resource conflicts and execution timeout risks, and is suitable for agent cluster collaborative scheduling in a complex scene.

The invention discloses a geological map-oriented breakpoint repairing and closed curve reconstruction method and system and a medium. The method comprises the following steps of: preprocessing an original geological map to obtain a grayscale image; carrying out binarization and morphological closed operation processing to obtain a grayscale image of the edge of the smooth contour curve; performing pixel skeletonization to obtain a pixel-level skeleton diagram; performing secondary edge extraction, connected domain marking and endpoint statistics on the pixel-level skeleton diagram, and screening out a non-closed curve and an endpoint set; carrying out nearest neighbor retrieval by adopting KD-Tree to obtain a candidate pairing set of each end point; performing priority pairing in combination with the spatial distance and the direction smoothness; and generating a transition line segment according to a pairing result to supplement the fracture part of the non-closed curve. According to the method, non-closed breakpoints generated by scanning or drawing errors in the geological map can be automatically restored, and a closed curve with topological integrity and a smooth boundary is generated.

The invention discloses a curved surface porous structure modeling simulation method and system for finite element analysis, and belongs to the technical field of mechanical engineering simulation, and the method mainly comprises the steps: carrying out the initial grid division of a target curved surface part, and obtaining a grid node set covering a curved surface; according to a preset hole center coordinate, three closest grid nodes are automatically searched in the grid node set, a local reference plane is established, and the hole axis direction is determined; generating an offset sketch plane in the normal direction of the reference plane, projecting the hole center to the sketch plane, drawing a circular sketch, and executing a stretching and cutting command to form a hole; and circularly executing the operation to realize automatic generation of multiple holes on the curved surface. And finally, the porous structure is subjected to grid division again, so that subsequent operation is facilitated. According to the method, the modeling process is combined with parameterization analysis and an automatic process, the efficiency and stability of porous modeling of the complex curved surface structure are remarkably improved, and a basis is provided for finite element pretreatment of the complex curved surface structure.

The invention relates to the field of video generation, in particular to a new media video automatic generation method and system based on artificial intelligence. The method comprises the following steps: identifying user input information; performing deep semantic analysis on the user input information, and constructing a time sequence demand curve; performing role behavior analysis according to the time sequence demand curve, and constructing a role behavior data packet; performing visual expression demand analysis according to user input information, and constructing a multi-level 3D scene; performing dynamic behavior scene fusion on a multi-level 3D scene by using the role behavior data packet, and outputting a video frame sequence; and performing intelligent compression and dynamic code rate optimization on the video frame sequence, and outputting a finished video. According to the invention, full-process automatic, high-quality and high-efficiency generation of the new media video from content conception to finished product output is realized.

The application provides a consumer rights protection intelligent review method and system based on a large language model, and relates to the technical field of artificial intelligence and natural language processing. The method comprises: preprocessing a text to be reviewed to obtain structured text feature data; using a pre-trained large language model to perform semantic understanding on the structured text feature data to obtain a text semantic vector containing domain semantic information; performing joint retrieval and matching on the text semantic vector in combination with a knowledge graph and a rule base to identify and output a risk element set; and performing compliance determination based on the risk element set to obtain a preliminary review conclusion containing a risk level, evidence sufficiency, rule matching degree and benchmark confidence. The application automatically converts an original text into a high-confidence review conclusion with explainability through intelligent processing of the whole process.

The embodiment of the invention discloses a configuration interaction method and device, equipment, a medium and a product, and the method comprises the steps: displaying a configuration interface for a target system, and the configuration interface comprises an instruction interaction region; in response to an interaction instruction received through the instruction interaction area, a dynamic configuration panel is displayed in the configuration interface, and the dynamic configuration panel comprises interaction configuration elements matched with the interaction instruction; and in response to a trigger operation for the interaction configuration element, displaying a visual display interface, and updating and displaying a rendering result of the target system in real time in the visual display interface so as to present a visual effect consistent with the interaction configuration element after the trigger operation. According to the technical scheme of the embodiment of the invention, efficient interaction of instruction-on-demand configuration element display-real-time feedback is constructed, and the accuracy and efficiency of configuration interaction are improved.

The application provides a double-station worktable for CNC, and particularly relates to the technical field of CNC machine tool auxiliary equipment, and comprises a CNC main body, an inner platform and a tool head unit, and further comprises a double-shaft switching mechanism arranged between the outer side of the CNC main body and the inner platform, wherein the double-station worktable for CNC; the double-shaft switching mechanism composed of an X-axis displacement component, a Y-axis displacement component and a sinking fastening component is arranged, so as to solve the defects of the existing technology, such as the jamming misplacement caused by the single guide rail alignment of the multi-station switching, the lack of special connection structure, the non-separation of the carrier and the guide rail during the processing, the vibration transmission affecting the precision, and the like, to realize the cooperative action of the X-direction bearing movement of the jig table, the Y-direction smooth connection and the locking of the processing position sinking, and the double-station switching does not need complex debugging, so that the equipment downtime is greatly reduced, and the processing precision and stability are ensured.

The invention belongs to the crossing field of artificial intelligence and barrier-free assistance technology, and particularly discloses a sign language translation method and device based on a large language model.The method is applied to a terminal and comprises the steps that key points are extracted from sign language video frames; based on the coordinates, types and global indexes of the key points in the sign language video frames, obtaining fusion features through feature fusion; based on the fusion features corresponding to the sign language video frames in the frame window, time sequence modeling and classification are carried out, and a word prediction result of the frame window is obtained; a sliding window voting and deduplication mode is adopted, the candidate word sequence is preprocessed, a preprocessed word sequence is obtained, and the candidate word sequence is formed by connecting word prediction results of all frame windows in series according to a time sequence; based on the preprocessed word sequence, word error correction and statement generation are carried out by calling a large language model, and a sign language translation result is generated. According to the invention, sign language video translation can be realized for the terminal, and the accuracy and fluency of the translation result can be guaranteed.

A voice interaction method, system, device, and storage medium are disclosed. The method includes: acquiring historical voice interaction data of a target user, their viewing location, and an audio stream at that location; acquiring a knowledge graph of multiple exhibits within the area where the viewing location is located; determining the target user's voice interaction commands in the audio stream; associating the voice interaction commands with historical voice interaction data based on a preset contextual dialogue model to obtain contextual dialogue data; determining the target user's intent based on the voice interaction commands and contextual dialogue data; determining the explanation content based on the exhibit knowledge graph and the target user's intent, and generating a target display scene based on the explanation content; selecting a target virtual guide from a preset virtual guide library based on the explanation content, and displaying the target display scene; and having the target virtual guide explain the target display scene based on the explanation content. This application can improve the accuracy of voice interaction in VR exhibitions.

The application relates to a battery assembling terminal mounting device and method; the battery assembling terminal mounting device comprises an arrangement mechanism and a mounting mechanism movably arranged above the arrangement mechanism, the mounting mechanism comprises a telescopic frame movably and rotatably arranged above the arrangement mechanism, clamping arms openably and closably arranged on the telescopic frame, a material distribution assembly and a welding assembly; the arrangement mechanism positions a plurality of batteries after combination covers; after the clamping arms move to the material distribution assembly with the telescopic frame and position and clamp terminals, the clamping arms move with the telescopic frame to connect connecting holes of the terminals to pole columns of the batteries, and welding is performed through the welding assembly; the battery assembling terminal mounting method based on the above battery assembling terminal mounting device comprises the following steps: an arrangement process, a detection process, a removal process and a mounting process; the application solves the problems of low production efficiency, low product consistency, heavy burden on operators and hidden safety hazards during terminal mounting.

This invention relates to the field of industrial robots, specifically to a heavy-duty robot with an adjustable counterweight arm. A robotic arm structure and a counterweight structure are respectively arranged on both sides of a support column. A first motor is located above the support column, and the output end of the first motor is connected to a first lead screw. The first motor drives the first lead screw to rotate, controlling the robotic arm structure to move up and down along the lead screw. A connecting structure is provided between the robotic arm structure and the counterweight structure. The counterweight structure contains several counterweight blocks, and a counterweight adjustment component is located on one side of the counterweight structure. The counterweight adjustment component can automatically increase or decrease the number of counterweight blocks inside the counterweight structure to balance the weight of the robotic arm structure. The adjustment is automatic based on the weight difference between one side of the robotic arm structure and the other side of the counterweight structure, eliminating the need for manual adjustment of the number of counterweight blocks and improving work efficiency.

The invention relates to the technical field of rock-soil slope reinforcement, in particular to a reinforcement device for a rock-soil slope. The device comprises a plurality of reinforcing anchor rods assembled on one side of a rock-soil slope, and reinforcing mechanisms are assembled on the inner sides of the reinforcing anchor rods. Through the structural design of the reinforcing mechanism, the stiffening mechanism and the limiting mechanism, the metal protective net can stably cover the rock-soil side slope conveniently, meanwhile, one end of a reinforcing anchor rod can be fixed to the inner side of the rock-soil side slope in cooperation with filler, the anchoring effect of the reinforcing anchor rod on the metal protective net is improved, and the service life of the metal protective net is prolonged. The reinforcing anchor rod is prevented from loosening when subjected to external scouring, the safety of the device is improved, the reinforcing anchor rod can be assisted to be inserted into the rock-soil side slope, meanwhile, the reinforcing anchor rod and the rock-soil side slope can be conveniently separated, and the operation efficiency during rock-soil side slope reinforcing construction is improved; and a second long stiffening rod, a third long stiffening rod and a second short stiffening rod are added into the filler, so that the tensile strength can be improved, and the integrity and stability of the structure are enhanced.

The utility model provides an auxiliary device for sleeving a casing into a filling pipe, which comprises a curled film main body, the film main body is curled in a natural state to form a C-shaped tubular structure with a longitudinal opening, and horn mouth parts are arranged at two ends of the film main body. By arranging the curled film main body and utilizing the C-shaped tubular structure formed in the natural state, when the auxiliary device is sleeved into the filling pipe, the tubular film main body can form a temporary isolation layer between the casing and the filling pipe. And the chance that the casing is in direct contact with the port or the pipe wall of the filling pipe is reduced, so that the risk that the casing is damaged due to direct scratching is reduced, and the casing is protected. And the horn mouth parts arranged at the two ends of the film main body provide effective guidance for sleeving the auxiliary device into the filling pipe and subsequently sleeving the casing into the auxiliary device. Therefore, an operator can more easily align and place the auxiliary device at the port of the filling pipe, the alignment operation is simplified, and the smoothness of the sleeving process is improved.

This utility model relates to the field of roller shutter door technology, specifically to an anti-friction side plate for roller shutter doors. It includes a mounting base with a sliding groove inside. A movable plate slides within the groove, and several bearings are located at the bottom of the movable plate. An anti-friction component is installed between two adjacent bearings at one end of the movable plate. By installing the anti-friction component between adjacent bearings, this utility model ensures that during the movement of the movable plate, only the steel balls first slide and contact the top wall of the groove, while the bearings do not contact the top wall of the groove. This significantly improves the smoothness of the movable plate's left and right movement, effectively preventing jamming and sticking. Furthermore, by arranging bearings and anti-friction components opposite to each other on the movable plate, this utility model further adapts to large roller shutter doors. When the movable plate slides within the groove, the steel balls on both sides contact the top and bottom walls of the groove respectively, ensuring operational stability and reducing the problem of jamming in large roller shutter doors.

The invention discloses a micro centrifugal compressor impeller parameterization design method, which relates to the technical field of impeller parameter design, and comprises the following steps: determining rated design input parameters, solving target flow state parameters, obtaining target aerodynamic performance parameters and design check parameters, and solidifying a design constraint reference; basic geometric parameters of the meridian plane of the impeller are calculated, the contour of a compressor shell and the contour of an impeller hub are constructed, and the boundary molded line of the meridian flow channel of the impeller is obtained; blade center line distribution, blade angle distribution and blade thickness distribution are constructed, and a single main blade full-parameterized three-dimensional molded line is obtained; constructing main blade circumferential arrangement parameters and position parameters of splitter blades relative to the main blades, and obtaining impeller blade group arrangement parameters; and constructing an impeller candidate three-dimensional model, carrying out three-dimensional flow analysis and convergence check on impeller blades, obtaining an impeller CAD model, and enhancing design chain continuity, parameter adjustment pertinence, model convergence stability and engineering output directness.

The present application relates to the technical field of tobacco processing, in particular to a pneumatic conveying device and method for improving the conveying efficiency of tobacco material, the pneumatic conveying device comprising a feeding pipe, a material conveying pipe and an adjustable air pipe, which are arranged in a T-shaped layout and are interconnected, wherein the feeding pipe is perpendicular to the material conveying pipe and the adjustable air pipe; a wind volume adjusting plate assembly and a constant speed spiral air hole plate are sequentially arranged from outside to inside at the inlet of the adjustable air pipe; the wind volume adjusting plate assembly is used for controlling the wind volume entering the adjustable air pipe; the constant speed spiral air hole plate is a circular plate, the outer diameter of which matches the inner diameter of the adjustable air pipe, a plurality of through holes are formed in the circular plate, the plurality of through holes are arranged in a constant speed spiral layout, and each through hole has a consistent inclination angle between the axis of the through hole and the tangent of the center of the circular plate. The present application can significantly improve the conveying smoothness of tobacco material, and can also reduce the crushing rate of tobacco sheets and other fragile materials.

This utility model relates to the field of switch protection technology, specifically a protective device for preventing accidental touch of a touch switch. It includes a protective housing, with a resistive touch switch fixedly connected to the center of one side of the inner wall of the housing. A blocking flange is fixedly connected to the inner wall of the housing near the edge of the opening. The advantages of this utility model are: Touch operation is achieved by applying pressure to the resistive touch switch by pushing the pressure plate. However, before pressing, the push plate must first be pushed upwards to disengage the locking pin, thus unlocking the switch. This opening method effectively prevents children from accidentally pressing the switch, thus avoiding abnormal opening and closing, improving the protective effect, preventing damage caused by repeated high-frequency pressing by children, and extending the service life. The operation of pushing the push plate and then pressing aligns with user habits, reducing the impact of unlocking operations, improving opening and closing efficiency, and making the entire opening and closing operation smoother and more convenient to use.

The invention belongs to the technical field of motorcycle starting relay assembly, and particularly relates to a motorcycle starting relay assembly machine which comprises the following steps: S1A, feeding a plastic upper cover through a stock bin and a vibration disc; s2A, feeding is conducted through a vibration disc, and the rivets are loaded into the plastic upper cover; s3A, the rivet is pressed tightly; s4A, the product is turned over; s5A, feeding is carried out through a vibration disc, and the large sealing ring is arranged in the plastic upper cover; and S6A, through the layout of double-machine cooperation and vibration disc distributed feeding, a production line frame which is tightly connected physically and is highly automatic in material feeding is constructed, a hardware foundation is provided for achieving unmanned operation of the whole process from core component assembling to final testing of the relay, and the production efficiency of the relay is improved. Conditions are created for reducing manual intervention in links such as material sorting, transferring and equipment turnover and improving the continuity and the efficiency stability of the production process.

The application relates to a street intelligent playground device suitable for children, which comprises seven modules, the seven modules comprising five isosceles right-angled triangle modules, one rectangular module and one parallelogram module, the seven modules being spliced with each other to form a seven-piece puzzle structure, and the modules being connected through magnetic adsorption. The application has the effect of improving the applicability of the children playground device.

The invention discloses a full-process visual monitoring and intelligent management method for a glass bracket production line, and relates to the technical field of industrial quality control, and the method comprises the steps: carrying out the continuous image collection of all stations of the glass bracket production line through an image collection unit, and constructing a full-process image data sequence; detecting the size of the glass bracket by using the qualified glass bracket size image database, and judging whether the size is abnormal or not; further performing defect detection on the glass bracket with the normal size, and determining whether an abnormal defect exists or not through pixel value difference analysis; and finally, summarizing the glass brackets with abnormal sizes or defects and related information thereof, and generating a visual quality report, so as to quickly position problems and optimize the production process. The comprehensive monitoring and intelligent management of the glass bracket production process are realized, and the production efficiency and the product quality are improved.

This invention relates to the field of natural language processing technology, specifically to a method and system for matching the intent of intelligent NPC dialogues in multimodal interaction. The method involves real-time acquisition of multimodal data, generating multimodal semantic features through submodal preprocessing; integrating the semantic features of each modality using a cross-modal fusion module based on semantic association, generating a candidate intent set based on semantic context representation and combined with a semantic parsing module and predefined intent templates; tracking changes in user intent in real time through a continuous semantic learning mechanism and an interactive memory module, combined with a Bayesian update method, dynamically adjusting the confidence level of each intent in the candidate intent set, and filtering the final intent; constructing an NPC semantic cognition model, and performing semantic consistency analysis to perform semantic checks on user input and NPC dialogue state; combining the final intent and a decision engine to generate a dialogue strategy and output synchronized response content; this invention improves the accuracy of dynamic matching of intelligent dialogue intents.

The utility model discloses a sofa cover elastic band installation threading device, including threading device assembly, still including magnetic suction disc subassembly, threading device assembly includes and has threading head, the upper end of threading head is provided with the magnetic suction board, and one end of threading head is provided with the connecting sleeve, the utility model discloses through elastic band placing groove place elastic band, then utilizes the lower pressure splicing strip to be fixed with elastic band placing groove splicing after the lower pressure of elastic band, thereby realizes the fixed function of one end of elastic band, then whole threading device assembly is inserted into the elastic band cover of sofa cover, then hand holds the handle and will be close to threading head with magnetic suction piece, because the magnetic attraction between threading head and magnetic suction piece makes when dragging handle, the magnetic suction board is adsorbed and dragged by magnetic suction piece, thereby completes the dragging threading function of elastic band, greatly improves the efficiency of sofa cover elastic band threading.

The invention discloses a few-sample fault diagnosis method based on TFCD fusing time sequence characteristics, and the method comprises the steps: inputting a preprocessing state signal into a trained fault diagnosis model, so as to enable the fault diagnosis model to carry out the fault diagnosis of a core part. The fault diagnosis model is obtained by training a plurality of training samples generated by a trained TFCD model, and the TFCD model extracts discriminative time sequence features by introducing a long short term memory network, and embeds the discriminative time sequence features as static condition vectors into a DDPM model. According to the method, the model can effectively capture the long-range dependency relationship and the dynamic mode characteristics in the vibration signal, so that the generated sample keeps good coherence in the time domain, meanwhile, the specific periodic impact mode of the fault is reserved, and the physical rationality of the generated sample is remarkably improved. Therefore, accurate diagnosis under cross-working conditions can be realized.

Sliding grooves are formed in the top of a machining table and close to the edges of the two sides, the sliding grooves are detachably connected with a door frame through sliding blocks in the sliding grooves, a telescopic rod is arranged below the door frame, the output end of the telescopic rod is detachably connected with a connecting plate, one side of the connecting plate is rotationally connected with a cutting frame, and the cutting frame is rotationally connected with the machining table. The foam processing device has the following advantages that foam needing to be processed is placed on the placing disc and pressed forcibly, so that the inserting column is inserted into the foam, the foam can be stably placed in cooperation with adsorption of the suction cup, then the driver is started to drive the placing disc to rotate, and therefore the foam is driven to rotate; the rotating foam can be matched with a cutting path, the cutting smoothness is improved, meanwhile, the cutting frame can be driven to move through the moving block, the telescopic rod and the motor, so that operation of different cutting paths is completed, the foam does not need to be adjusted through shutdown, and the cutting operation efficiency is improved.

The invention discloses a one-time laying system for a wave glider and a collaborative operation method of the one-time laying system, and belongs to the technical field of ocean engineering. The system comprises a wave glider and a transferring and laying device. The moving, transporting and laying device is a detachable separation support, and an upper laying support and a lower moving support are connected through a positioning pin. The laying support is provided with a bearing face matched with the ship body, four hanging rings, a supporting rod for supporting the traction machine and a floating body arranged on the middle rear portion. The method comprises the steps that the device is moved to a deck to be locked; the positioning pins are taken down, and the whole support and the glider are vertically hoisted and laid through the four slings; when the glider is immersed in water, the bracket inclines forward by using the floating body, and the glider is automatically separated; and the mother ship leaves and recycles the laying bracket. Rapid, stable and safe one-time laying of the wave glider under the complex sea condition is achieved, the risk of graded laying and umbilical cable winding are avoided, and the operation efficiency and safety are remarkably improved.

The application discloses a mechanical clamp jaw with anti-deviation positioning function and relates to the technical field of mechanical clamp jaws.The mechanical clamp jaw comprises two groups of jaw bodies arranged in the interior of an assembly body and used for assisting in clamping assembly of a direct-current contactor.The direct-current contactor comprises an upper shell and a lower shell.The mechanical clamp jaw triggers an inner elastic support structure through a clamping process linkage, can support the inner wall of a weak recessed opening of the upper shell of the direct-current contactor by a support plate when clamping the upper shell, effectively balances clamping extrusion force, restricts the inward collapse and distortion of the opening edge, accurately maintains the original size and shape of the opening, guarantees the basic matching precision of the openings of the upper and lower shells, and automatically completes the accurate alignment and communication of the openings of the upper and lower shells by relying on an anti-deviation positioning assembly to adaptively rotate and correct the lower shell with placement deviation during the assembly butt joint process of the shells, so that the problems of shell clamping deformation, assembly alignment deviation and assembly failure that are prone to occur in traditional clamp jaws are solved.

This application discloses an automated video generation system and method based on AI Agentic multimodal collaborative control. The system includes: a requirement acquisition module for acquiring multimodal generation requirement information; a hierarchical intent parsing and dynamic graph construction module for generating an intent graph with priorities and constraints; a multi-scale spatiotemporal capsule scene generation module for generating multi-scale spatiotemporal capsule modeling information; a physical-semantic joint constraint verification module for acquiring verified modeling information; a spatiotemporal consistency optimization and content fusion module for acquiring a spatiotemporally consistent optimized video frame sequence; and a dynamic bitrate video synthesis and output module for generating video files. This application overcomes the rigidity and separation problems of traditional video generation technologies through a dynamic adaptive architecture and global joint optimization, achieving intelligent control throughout the entire process from multimodal input to high-quality video output.

The utility model belongs to electromechanical equipment technical field especially relates to a kind of electromechanical equipment surface polishing device, including polishing machine main body, the front end of polishing machine main body is fixedly installed with polishing head, dust hood is movably installed below the polishing head, the side surface of dust hood is equipped with air pipe for connecting fan, the inside of the polishing machine is equipped with buffer mechanism.The electromechanical equipment surface polishing device, dust removal mechanism is matched by fan, dust hood, rubber ring and spring one, adsorbs dust, enhances sealing, adapts to different surface, solves dust pollution and other problems;Buffer mechanism uses the floating design of spring two to unload force, reduces impact force, reduces polishing wheel wear, protects equipment, while the setting of ball in polishing machine reduces the friction between components, improves operating stability and smoothness while extending the service life of equipment.

The utility model relates to mahjong machine technical field, concretely relates to a mahjong machine with multi -surface control panel, including mahjong machine outer frame and outer frame batten, the desktop of mahjong machine is provided with the lifting panel, the four sides of mahjong machine are provided with the mounting groove, and the control panel is arranged in each mounting groove, the lifting panel is electrically connected with the control panel. The mounting groove and control panel rotatable connection are connected, the both sides of control panel are provided with rotating shaft respectively, and the both sides of mounting groove are provided with the mounting hole coaxial with rotating shaft respectively, and rotating shaft can be inserted into the inside of mounting hole. The upper side of control panel is provided with the lug, and the inside of mounting groove is provided with the guide sliding slot, and the lug slides in the guide sliding slot. The utility model solves the technical problem that the control panel of existing mahjong machine is set on the lifting panel and makes the control panel vulnerable to external factors interference, leads to false touch or damage, and makes the dice display area compression and leads to the technical problem of insufficient visibility.

The utility model discloses a kind of food crushers, including body, crushing bin and inlet-outlet structure, further include: turntable, set in crushing bin;Knife groove, the inside of the turntable is formed with knife groove and penetrates;Knife disc, by joint structure installation in knife groove.In the present application, first, double-end joint structure of axial and circumferential limit is used between knife disc and bracket, and unlocking is completed by exposed handle, without any auxiliary tool, knife disc replacement or cleaning can be completed, to reach the purpose of convenient cleaning, second, oval knife disc with its long axis periodicity sweeps feed inlet, forms shear and shielding alternation, to improve crushing efficiency and fluency, finally, lock point is hidden in the narrowest tail end of knife disc and extends to center opposite side, make joint structure completely avoid shear area, while completing axial close and circumferential positioning when knife disc is pushed into shaft sleeve, both can realize the full use of crushing space, and can simplify the number of parts and assembly step.