99results about How to "Guaranteed fluency" patented technology

The invention relates to the technical field of information security, and discloses a terminal clipboard sensitive information cross-application leakage real-time interception method, which comprises the following steps of: registering a clipboard access hook function in a kernel layer or a system framework layer of a terminal operating system, and capturing a clipboard reading operation in real time; comparing an application program identifier corresponding to the captured reading operation with an application program identifier of a clipboard owner, and judging whether the access is cross-application access or not; when the access is determined to be cross-application access, triggering a clipboard content scanning engine to perform sensitive information identification on texts, images and file paths in a clipboard; and obtaining an evaluation result based on a preset sensitive information rule base and the dynamic strategy engine. A clipboard access hook function is deployed in a kernel layer or a system framework layer, millisecond-level capture and blocking of cross-application clipboard reading operation are achieved, and traditional extensive management based on application permission declaration is upgraded to refined management and control based on content risk identification.

The utility model relates to the technical field of plastic pulley production, and disclose a kind of feeding device for plastic pulley production, including bottom plate, first mounting bracket and second mounting bracket are arranged on bottom plate, supporting frame is arranged on second mounting bracket, supporting frame is arranged on the storage frame, the bottom end of storage frame is provided with mounting plate, conveying belt is arranged on first mounting bracket, conveying belt is located the side of storage frame;Adjusting assembly is arranged in storage frame, adjusting assembly includes movable plate sliding in mounting plate, the top of movable plate is provided with knob;When movable plate reciprocating sliding in mounting plate, knob pushes plastic gear shaft body in storage frame to slide on conveying belt;Conveying belt and mounting rod are rotated by servo motor synchronous drive, and the abutment transmission of cam plate and connecting plate is combined, reciprocating sliding push material is realized, cooperate the elastic reset of connecting spring, ensure that plastic gear shaft body is stably conveyed from storage frame to conveying belt, reduce feeding interruption.

The utility model relates to the technical field of cloth rolling, in particular to a functional knitted cloth rolling device which comprises a bottom plate and a rolling device body installed at the top end of the bottom plate, and a plurality of fixing frames fixedly connected to the top end of the bottom plate and symmetrically arranged are arranged on one side of the rolling device body. Through the arranged connector, the connecting rod, the connecting plate, the transmission roller, the transmission belt, the smooth particles, the rotating motor and the wire, when the device is used, the winding device body and the rotating motor are started, the smooth particles on the outer side of the transmission belt can stretch the wrinkled cloth to enable the cloth to be kept in a flat state, meanwhile, the winding device body can continuously wind the cloth, and the winding efficiency is improved. By means of the design, the wrinkled cloth can be leveled, so that the quality of the cloth is improved, movement of the cloth is not limited while the cloth is leveled, and the running smoothness of the device is guaranteed.

The utility model provides a kind of reciprocating bracket mechanism of deep well detection device, including two bearing seats, screw rod, guide shaft, guide sliding block, driving gear, rotating clutch seat and manual adjusting rod, screw rod and guide shaft are installed between two bearing seats in parallel, guide sliding block is equipped with guide sliding sleeve and translation sliding sleeve, guide sliding block upper end is further equipped with the guide roller assembly for cable multidirectional limit guide. The utility model is simple in structure, can ensure smoothness and neatness when paying off or taking up wire of deep well detection device, and can also manually adjust guide sliding block, ensure stable operation and neatness precision of the reciprocating bracket mechanism.

The utility model relates to mechanical engineering technical field discloses a kind of transmission screw of double thread structure, including stud, the outside of stud is fixedly connected with two inner rings, the outside of inner ring is fixedly connected with thread tooth, the surface of inner ring is equipped with lubricating groove, the outside of thread tooth is movably connected with multiple ball bearings, multiple ball bearings are evenly distributed in the outer surface of thread tooth in equidistant interval mode, and extend along the helical path of thread tooth, ball bearing is steel ball bearing, and surface is polished, the radial dimension of inner ring is less than thread tooth, and the corresponding ladder groove of adaptation bolt is equipped with, axial limit is formed when the two are clamped, and the inner wall of lubricating groove is equipped with flow guide line route.In the utility model, rely on the bidirectional ladder type clamping structure of double inner ring and bolt double internal thread, can form double axial limit effect, greatly enhance the connection firmness of screw and bolt, effectively avoid the front and rear sway or deviation caused by vibration, impact during transmission.

The utility model discloses a track and pulley assembly structure of an electric curtain, which relates to the technical field of electric curtains and comprises a track body and a pulley piece, a pair of guide rails is mounted in the track body, and the pulley piece comprises a moving shaft arranged in the track body. Rollers matched with the guide rails are rotationally mounted at the two ends of the moving shaft, a sleeve shell fixedly sleeves the middle of the moving shaft, and a hook is fixedly connected to the lower end of the sleeve shell; lubricating mechanisms are arranged on the two sides of the top of the guide rail and comprise oil boxes fixedly installed on the top of the guide rail. The lubricating mechanism is arranged at the top of the guide rail, the oil control piece is triggered through rolling of the roller, lubricating oil can be automatically released into the guide rail, the self-lubricating effect on the guide rail and the roller is achieved every time the curtain is opened and closed, friction and abrasion between the guide rail and the roller are effectively reduced, and the opening and closing smoothness of the curtain is guaranteed; and the service life of equipment is prolonged.

This invention relates to the field of online material tracking technology for production lines, and particularly to a method, apparatus, electronic device, and storage medium for tracking materials one by one. The method first acquires an image of an identification area, where each steel pipe has a tracking identification code recorded within the identification area. Then, image processing is performed on the identification area image, and the obtained edge map is identified to obtain a first identification of the steel pipe. Next, based on the positions of multiple steel pipes and their production sequence, the current steel pipe identification is estimated to obtain a second identification. Finally, based on the first and second identifications, the current steel pipe identification is determined. This invention combines image recognition identification with position estimation identification to confirm steel pipe identification, ensuring the continuity and accuracy of steel pipe identification traceability while guaranteeing smooth production.

The adjustable reverse boring groove cutter comprises a cutter bar, an embedded protruding block is arranged on the cutter bar, a cutter holder is connected to the embedded protruding block in a clamped mode, the cutter holder comprises a radial extension part, the radial extension part protrudes in the radial direction of the cutter bar, a mounting groove is formed in the radial extension part, and the cutter bar is connected with the mounting groove in a clamped mode. The mounting groove comprises a forward cutter groove and a pull-back cutter groove, the forward cutter groove and the pull-back cutter groove are formed in the two ends of the radial extension part in the axial direction of the cutter bar respectively, and blades are arranged on the forward cutter groove and the pull-back cutter groove. According to the adjustable reverse boring groove cutter, the same cutter can be used for machining the front face and the back face, the dismounting step and the positioning step are reduced, and certain machining precision can be improved while the machining efficiency is improved.

This invention discloses an integrated S-curve nozzle design method and nozzle for aircraft with a blended wing-body layout, belonging to the field of aero-engines. The method comprises the following steps: obtaining the external surface of the blended wing-body aircraft and the position and size parameters of the engine exit; establishing a model of the S-curve section of the nozzle; obtaining and modifying the upper expansion surface at the nozzle exit; designing the centerline of the nozzle's aft deck using Lee curves; designing the double sidewalls of the nozzle's aft deck using Lee curves; obtaining the aft deck profile of the nozzle based on the centerline and double sidewalls determined in steps 3 and 4; and obtaining the sidewall profile of the nozzle exit. This invention solves the problems of limited space layout, large drop between the nozzle exit and the aircraft's tail edge, and maintaining the streamline of the aircraft's external surface after nozzle installation when designing an integrated S-curve nozzle in a blended wing-body layout.

The utility model provides a kind of low-resistance ITO film slitting equipment, including round knife group, and one side of round knife group is provided with mounting rod, at least one group of slitting assembly is provided on the outside wall of mounting rod, for the secondary cutting of uncut film material, slitting assembly includes fixed plate slidingly connected on mounting rod, and one end of fixed plate is rotatably connected with transmission rod, and one end of transmission rod is provided with slitting knife, the cutting edge of each slitting knife is coaxially arranged with the cutting edge of each corresponding round knife, to ensure that the cutting position of uncut film material and slitting knife cutting position are completely coincident, the utility model is equipped with slitting assembly on one side of round knife group, and the cutting edge of slitting knife and corresponding round knife is coaxial, can be aimed at round knife blade wear, tension anomaly leads to uncut film material to carry out accurate secondary cutting, ensure that cutting position coincides, avoid tearing film material when winding due to tension accumulation, solve quality problem, improve yield, reduce cost.

This utility model provides a wool opening device, belonging to the field of wool processing technology. It includes a material box containing an opening mechanism for processing wool. The opening mechanism includes a feeding component and an opening component. The feeding component feeds wool into the material box, and the opening component is located below it, used to open the wool fibers. The feeding component includes a feeding ramp symmetrically mounted on the top of the material box and a feeding shaft symmetrically mounted above the ramp. Several feeding guide rods are distributed on the feeding shaft. This utility model can shred wool using meshing crushing rollers, avoiding problems such as uneven stress on wool fibers during opening due to improper or inaccurate roller coordination, and potential damage to some wool fibers due to over-opening.

This invention discloses a plastic box turning device for an assembly line, comprising a belt conveyor line, a base at the bottom of the belt conveyor line, side plates on the top of both sides of the base, and a lifting seat on the side of the side plates that are far apart from each other. The assembly line plastic box turning device also includes a clamping assembly positioned above the belt conveyor line. This invention relates to the field of plastic box production equipment technology. Through the cooperation of the belt conveyor line, base, side plates, lifting seat, clamping assembly, spacing adjustment assembly, and guide limiting assembly, plastic boxes conveyed to a designated position are fixed by clamping. Driven by a servo motor, the clamped plastic boxes are turned 180 degrees, realizing automated turning of plastic boxes and meeting the turning and conveying needs of plastic boxes of different specifications. This ensures the smooth conveying of the turned plastic boxes to subsequent processes, improving overall production efficiency and product qualification rate.

The invention relates to the technical field of spraying, and discloses a spraying machine arm for a railway wagon, which comprises a mechanical arm and further comprises a spraying main body, the spraying main body is internally provided with a coating channel, a gas channel and a flushing channel, and the coating channel and the gas channel are internally provided with a coating adjusting part and a spraying width adjusting part respectively; a blocking part A, a blocking part B, a nozzle and an atomizing cap are arranged in the coating channel and the gas channel respectively. When flushing fluid is injected through the flushing channel, the blocking part A can automatically block the coating channel A and open and block a through hole in the piston ring A, and meanwhile the blocking part B can automatically block the gas channel C and open the gas channel D, so that the flushing fluid can enter the coating channel B to flush the coating channel B, the nozzle and an inner cavity of the atomization cap; and gas can enter the coating channel B to blow and dry the coating channel B, the nozzle and the inner cavity of the atomizing cap, so that residual coating and flushing fluid are removed, and the subsequent spraying quality is guaranteed.

The invention relates to the technical field of fuel cells, and discloses a fuel cell humidifier with a novel structure, the fuel cell humidifier comprises a main body shell and a bundling shell, the bundling shell is assembled on an internal end plate of the main body shell, and the bundling shell is provided with an internal slide block structure; the internal sliding block structure is in sliding fit with an end plate in the main body shell so as to adjust the size of the bundling shell, a hollow fiber membrane tube is arranged in the bundling shell, the hollow fiber membrane tube is fixed with the main body shell through a pouring sealant surface, two ends of the main body shell are detachably connected with end covers, and the end covers are used for being connected with a dry gas path. A pressure regulating valve is installed on the main body shell and used for balancing the pressure difference of a dry path and a wet path, and a connector sliding block is arranged at a connector of the main body shell and is in sliding connection with the connector of the main body shell so as to adjust the direction of the connector of the wet path. The humidifier is used for solving the problems that an existing humidifier is insufficient in anti-compression and anti-impact strength, poor in plasticity and limited in adaptability, and the use stability is affected by differential pressure fluctuation of a dry path and a wet path.

The application discloses a real-time video playing method in QT environment, which comprises the following steps: S1, creating a compiling environment; S2, making a transmission service rule; S3, initializing ffmpeg stream pulling and decoding resources; S4, creating a stream pulling main thread; S5, decoding a data packet object obtained by stream pulling; S6, converting a decoded image frame; S7, obtaining the converted image frame and displaying in real time; and S8, releasing decoding channel resources. The application adopts a soft decoding method, effectively reduces decoding time, simultaneously adopts an RTSP video transmission protocol to obtain a video stream, effectively reduces playing delay, and guarantees video playing fluency.

The application provides a tactile feedback conversion method, device, electronic terminal and computer readable storage medium, wherein the tactile feedback conversion method is applied to a situation that an A application is interrupted by a B application when the A application is generating tactile feedback, and the method comprises the following steps: adjusting vibration delivery of the A application, so that the amplitude of the A application is reduced from a current amplitude to zero amplitude within a first preset time; and adjusting vibration delivery of the B application at the same time, so that the amplitude of the B application is increased from zero amplitude to the amplitude required by the B application within a second preset time. The application reduces the aftereffect of the motor, brings clear and comfortable vibration feeling to the user, improves the use experience of the user, ensures the fluency during the conversion of the tactile feedback, and effectively reduces the shell cracking phenomenon of the motor.

The invention discloses an event identification method and system for pig house intelligent monitoring, a camera and a medium. The method comprises the following steps: collecting and sampling pig house video streams; performing target identification on the sampled image to obtain an identification result including categories and position coordinates of pigs, personnel, vehicles and the like; performing label matching on the identification result based on a pre-configured label rule, wherein the matching rule at least comprises a target appearance rule, a region intersection rule, a target continuous appearance rule and a target disappearance rule; matching a pre-configured event rule according to a label matching result, and generating hog house monitoring events such as entry of pigs into a corridor and entry of personnel into an effective area; and intercepting an event associated video clip, monitoring a 4G network signal state, and adaptively selecting to locally store or report the event data and the video clip to a cloud platform. According to the invention, accurate and flexible event identification aiming at a pig house scene is realized, and the reliability of monitoring data in an environment without a wired network or a weak network is guaranteed.

This utility model belongs to the field of feed conveying technology, and particularly relates to an automatic weighing and feeding device for aquaculture feed. It includes a feeding device body, which comprises a material elevator for receiving and lifting materials. The output end of the material elevator is equipped with a material equalization mechanism, and the output end of the material equalization mechanism is equipped with a weighing and conveying mechanism integrating weighing and output functions. A receiving component is provided on one side of the weighing and conveying mechanism. The material elevator includes a carrier frame, and the material equalization mechanism includes a support frame. A material equalization conveyor belt is provided above the support frame, and a material equalization component is provided at the output end of the material equalization conveyor belt. This utility model has a reasonable design, simple structure, and is easy to process. It can be adapted to conveying production lines, achieving quantitative output of feed, ensuring relatively consistent feed quantity in the feed bins, improving work efficiency, ensuring convenient subsequent feed addition, and meeting usage requirements.

The present application relates to chain tensioner technical field, especially to a kind of hydraulic chain tensioner for electric automobile engine, including fixed seat, hydraulic seat is slidably fitted on fixed seat, tensioning sprocket is rotatably connected on hydraulic seat, oil tank is fixedly connected on the side of fixed seat, oil extraction seat is fixedly connected on oil tank, transmission mechanism is rotatably connected on oil extraction seat, oil liquid processing seat is fixedly connected on oil tank, automatic decontamination mechanism is rotatably connected in oil liquid processing seat, arc filter screen is fixedly connected in oil liquid processing seat, by setting automatic decontamination mechanism on arc filter screen, the effective working time of arc filter screen can be extended in the use process of hydraulic chain tensioner, prevent arc filter screen from being blocked due to impurity accumulation, ensure the fluency of oil, not only can effectively improve the stability, reliability and maintenance efficiency of system, also can prevent pressure fluctuation or tensioner jam caused by arc filter screen blockage.

The utility model provides a game device of mesa angle adjustable, including mesa board, the outside of mesa board is provided with hinge, the bottom of mesa board is provided with electric telescopic link angle adjusting assembly, the mesa board is connected with the table body through the hinge, the inside bottom fixed mounting of table body has computer control box, the top of computer control box is provided with desktop angle sensor, the inside fixed mounting of table body has LED luminous control device, the outside of mesa board is provided with dynamic star disk subassembly. This game device of mesa angle adjustable, through setting dynamic star disk subassembly, can through adjusting desktop angle and star disk rotation state, obtains rich game experience, solved the problem that traditional device track is single, realizes the stepless regulation and stable control of desktop angle, simultaneously, star disk can move in any position on the desktop, and player can form dynamic interaction through operation and device, improves the participation and challenge of game, has reduced production and use cost.

The invention discloses a stroller intelligent auxiliary braking system based on multi-sensor fusion, and relates to the field of intelligent traffic tools. The system comprises a multi-source sensing collection module, a braking execution construction module and a central decision optimization module. Holding pressure, vehicle body posture and wheel speed data are collected and fused in real time, the state verification unit calculates the hand release probability based on vibration characteristics, and mistaken touch signals caused by road bumping are effectively eliminated; the flexible braking generation unit generates a progressive braking curve according to the change rate of the pitch angle of the vehicle body and the speed deviation under the scene of downhill or high-speed hand release, and dynamically adjusts the damping force in combination with a safety truncation factor. According to the method, accurate recognition of the real hand release behavior can be achieved, flexible parking is achieved while the forward turning trend of the vehicle body is restrained, and the problems of sudden brake turnover and false triggering are solved.

The utility model discloses a knife tool module is changed with chopping board polishing, relates to chopping board polishing technical field, include: the frame, be located the assembly component of frame top, and the switching tool of staggered and symmetrically installed opposite of frame, the switching tool includes two pivot, two the opposite end of pivot fixed with two cross installation frame of staggered distribution, two cross installation frame through the opposite end rotation of a plurality of groups of pin shaft and a plurality of polishing module one -one assembly. The utility model discloses through always with horizontal state switching position's a plurality of polishing module, collocation different kinds of polishing mould, can realize the different polishing requirement of chopping board or the polishing of different kinds chopping board, and polishing mould operating end always faces down and horizontally, not only can ensure that polishing effect is uniform, surface quality is high, secondly reduces the time of adjustment and rework, guarantees the fluency of polishing, improves polishing efficiency.

The utility model belongs to the field of intelligent furniture, and provides a lifter with an oil gathering function and an electric lifting bed with the lifter with the oil gathering function, the lifter with the oil gathering function comprises a lead screw, a nut component and a motor, and the nut component comprises an oil cup and an internal thread nut. The electric lifting bed with the lifter with the oil gathering function comprises a bed body, bed legs and a control device, the lifter with the oil gathering function is installed on the bed legs, a nut component and the lead screw are arranged in an outer pipe, and a motor is arranged on the outer side of the outer pipe. The nut component and the lead screw can be guaranteed to be provided with lubricating oil for a long time, the smoothness of lifting action is improved, the actual service life of the whole device is prolonged, safety is high, and the device is suitable for large-scale popularization.

The invention provides a data transmission method, a vehicle and electronic equipment, and relates to the technical field of automobile communication. The method comprises the following steps: sending an address book data acquisition request for an address book to a mobile terminal; receiving address book basic data returned by the mobile terminal based on the address book data acquisition request, wherein the address book basic data comprises other contact data except the contact head portrait data; sending a head portrait data acquisition request to the mobile terminal based on the address book basic data; and receiving contact head portrait data returned by the mobile terminal based on the head portrait data acquisition request. According to the embodiment of the invention, the reachable time of the vehicle address book function can be shortened, the user experience is improved, the data transmission efficiency is improved, and the data processing pressure of the vehicle is relieved.

The utility model discloses a kind of multifunctional ultrasonic knife connecting devices, including socket and plug, socket proximal end has socket, socket is built-in with lock rod assembly, lock rod assembly includes lock rod and transmission connecting piece, lock rod is connected in socket by transmission connecting piece, socket is equipped with arc limit slot, plug is equipped with L type slot, lock rod is vertically slidably inserted in arc limit slot, its bottom end is slidably clamped in L type slot, the turning point of L type slot forms the dead point position of lock rod, with plug is inserted into socket, the bottom end of lock rod is synchronously slid into the slot starting end of L type slot and until moved to its slot end, to limit the plug-in between plug and socket;Socket is provided with identification switch, the distance between identification switch and socket is adapted to the insertion length of plug, only when plug is completely inserted into socket can trigger identification switch. The present scheme is connected between plug and socket by lock rod assembly and identification switch effectively.

The utility model discloses a novel capsicum uncapping machine, and particularly relates to the technical field of capsicum processing, the novel capsicum uncapping machine comprises a rack, a feed port and a discharge port, a capsicum stem discharge conveyor is installed in the rack, an uncapping assembly used for uncapping capsicum is connected between the rack and the feed port, and the discharge port is connected with the rack. The uncapping assembly comprises a plurality of conveying rollers rotationally connected between the feeding port and the rack, the adjacent conveying rollers are jointly connected with a plurality of sets of spiral rubber rollers, rubber roller supporting bearings are jointly connected between the spiral rubber rollers and the conveying rollers, and sieve plates are installed in the multiple conveying rollers. Through the arrangement of the uncapping assembly, the machine frame and the feeding port, pepper pedicles can be extruded to fall off, the pepper pedicles and the pepper pedicles can be synchronously removed, manual independent removal of the pepper pedicles is prevented, time and labor are saved, and the pepper processing efficiency is improved.

This utility model belongs to the field of crusher technology, and in particular to high-alloy crusher hammers. Addressing the wear problem, the following solution is proposed: It includes a circular plate and a protective shell; a hammer handle is fixedly connected to the lower surface of the circular plate; a hammer body is fixedly connected to the lower surface of the hammer handle; a first fixing hole is provided on one outer surface of the hammer body; a second fixing hole is fixedly connected to the lower surface of the hammer body; a mounting groove is provided on the inner surface of the circular plate; a third fixing hole is provided on the outer surface of the circular plate; a slider is slidably mounted on the inner surface of the mounting groove; a bearing is fixedly connected to the inner surface of the slider; and a fourth fixing hole is provided on the outer surface of the slider. The bearing and protective shell ensure the smooth operation of the high-alloy hammer, reduce wear on the circular plate, improve the wear resistance of the hammer body, and the buffer pad provides secondary protection for the hammer body.

The application provides a kind of remote scheduling method and system of intraoperative multi-modal medical image, it is related to medical image processing technical field, comprising: the multi-modal medical image is input into multi-input space-time convolutional neural network and is carried out surgical stage identification, and the output intraoperative state category;Based on multi-modal medical image extraction image node and construct atlas, through the association of atlas image node is enhanced embedding, obtain semantic feature matrix;According to intraoperative state category screening candidate image and calculating scheduling score, construct scheduling score model;Based on scheduling score model and current intraoperative behavior state dynamic adjustment display image, combined with non-contact gesture control model and C arm position coordinate interactive scheduling, obtain initial scheduling result;According to the embedded reinforcement learning mechanism and surgeon image call trajectory optimization initial scheduling result, combined with surgeon real-time feedback update display image, output optimization image call result.The application solves the problem of image display demand of surgeon.

This invention belongs to the field of metal processing technology, specifically relating to a multi-station stamping device for shock absorber spring washers. The device includes a hydraulic press and a stamping die. The stamping die comprises a base and a module. A shaft is integrally formed on the right side of the base, and an output shaft is rotatably connected to the left side. The right side of the module is rotatably connected to the left end of the shaft. A snap-fit ​​groove is formed on the left side of the module. A snap-fit ​​block is integrally formed on the right end of the output shaft and slidably connected to the snap-fit ​​groove. Several station slots and sliding grooves are formed on one side of the module. Through holes connect the station slots and sliding grooves. Stamping rods are slidably connected to the inner walls of the through holes, and sliders are integrally formed on the outer sides of the stamping rods. This device solves the problem that current stamping methods for shock absorber spring washers cannot achieve simultaneous multi-station stamping and burr removal during stamping, resulting in significantly reduced production efficiency and quality.

The application relates to the technical field of composite board production, and discloses a production equipment for composite boards, which comprises a bearing plate and a bottom bin, the bottom of the bearing plate is fixedly connected with the top of the bottom bin, the upper surface of the bearing plate is provided with a recess, one side of the bearing plate is provided with a guide plate mechanism, the inner wall of the recess is provided with a turnover plate line changing mechanism, the inner wall of the turnover plate line changing mechanism is provided with a clamping plate mechanism, the two sides of the upper surface of the bearing plate are both provided with a clamping mechanism, the inner wall of the bearing plate is provided with a hydraulic transmission mechanism, and the surface of the bearing plate is provided with a pushing mechanism. The production equipment for composite boards can be arranged at the tail of a production line, the turnover plate line changing mechanism is periodically turned over to drive the turnover of the boards, the pushing plate mechanism is used for pushing the boards to be stored and discharged, the baffle mechanism is used for providing a stop position to guarantee the smoothness of the board line changing, and the production line of the composite boards can be changed, and the production of the composite boards is smooth.