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A five-roller embosser
This application discloses a five-roll embossing machine, including a machine body, an embossing assembly, a paper feeding assembly, a main drive assembly, and a pressing roller. The embossing assembly includes five embossing rollers, a pair of main gears, and a pair of positioning assemblies. The pair of main gears are rotatably mounted on both sides of the machine body and driven to rotate by the auxiliary drive assembly. Each embossing roller is provided with a quick-release assembly at both ends. The quick-release assembly includes a bearing groove, a toothed cover, several pressure covers, and a fastening assembly. The fastening assembly achieves simultaneous locking of all pressure covers and toothed covers by a single bolt operation through a linkage. The main drive assembly drives the working position embossing roller and the pressing roller to rotate synchronously. The positioning assembly performs precise circumferential positioning of the main gears. This invention solves the problems of cumbersome roller changing, long time consumption, and low positioning accuracy of existing embossing machines, realizes quick roller changing by a single person and seamless switching of five patterns, and greatly improves production efficiency and equipment versatility.
Owner:瑞安市奥特包装机械有限公司
Compensated shrinkage concrete containing acid-free weak base expanded graphite and its preparation method
The application discloses a shrinkage-compensating concrete containing acid-free weak base expandable graphite and a preparation method thereof. The concrete comprises cement 200-500 parts, mineral admixtures 50-200 parts, fine aggregate 600-800 parts, coarse aggregate 1000-1300 parts, water 120-200 parts, additive 5-15 parts and acid-free weak base low-temperature expandable graphite 15-75 parts. The expansion trigger temperature of the graphite is 90-100 DEG C, and the pH value is 6.0-8.0. The method comprises the following steps: firstly, uniformly mixing and stirring cement, mineral admixtures, fine aggregate, coarse aggregate and acid-free weak base low-temperature expandable graphite to obtain dry mixture B; secondly, mixing water and additive and adding the mixture into the dry mixture B to uniformly stir to obtain a concrete mixture; and thirdly, forming the concrete mixture, carrying out steam curing after final setting, naturally cooling to room temperature and obtaining the shrinkage-compensating concrete. Therefore, the concrete self-shrinkage can be precisely and efficiently compensated in the steam curing process of the concrete.
Owner:WUHAN TEXTILE UNIV
Multi-layer automatic seedbed system
PendingCN122074326ATo achieve intensive utilizationFully automatedConveyorsPlanting bedsGear wheelElectric machinery
The invention discloses a multi-layer automatic seedbed system which comprises a rack main body and is characterized in that a motor assembly seat is fixedly mounted on the lower side of the rack main body, a servo motor is fixedly mounted on the motor assembly seat, a driving gear is arranged at the driving end of the servo motor, and the driving gear is in meshed connection with a first transmission chain; the invention relates to the technical field of automatic seedbeds, and has the beneficial effects that a multi-layer metal frame forms a framework of a system, provides stable support and realizes intensive utilization of a vertical space, and a chain and chain wheel conveying system is a key for realizing automation. The system can drive the seedling raising plates to horizontally move or vertically ascend and descend among all the layers, the space efficiency is extremely high, the most prominent advantage is that through three-dimensional stacking, the production capacity of the unit occupied area is multiplied, and the system is very suitable for intensive production in environments such as greenhouses and plants with high space cost.
Owner:HEBEI NONGZHUANGYUAN AGRICULTURAL TECHNOLOGY CO LTD
Anti-agglomerated short-cut carbon fiber flocking feed device
This invention relates to the field of feeding devices, specifically to an anti-agglomeration short-cut carbon fiber flocking feeding device, comprising a processing box for crushing and screening fibers. A feeding assembly is connected to the bottom of the processing box, and a storage hopper is connected to the bottom of the feeding assembly for collecting the processed fibers. A discharge assembly is connected to the bottom of the storage hopper. Two rotating rods are rotatably connected through the upper and middle sections of the processing box. Toothed rollers and gears are fixedly connected to the outer rings of the rotating rods. A motor is fixedly connected to the outside of the processing box, and its output end is fixedly connected to the rear rotating rods. A sprocket is fixedly connected to the outer rings of both the upper and lower rotating rods at the rear. By setting up a multi-layered rotating rod + toothed roller multi-stage tearing structure, combined with synchronous transmission of gears and chains, the agglomerated fibers are gradually torn apart and dispersed, resulting in a strong initial dispersing effect.
Owner:DONGHUA UNIV
A kind of active air intake grille structure for range extender
ActiveCN224408947Ureduce distractionsreduce resistanceDriving modeElectrical and Electronics engineering
The utility model relates to the technical field of range extending type automobile, especially increase a kind of active air intake grille structure for range extender, including grille frame, the upper or front area of car rear wheel package is provided with grille mounting hole;Grille frame one end is embedded and fixed in the inboard of grille mounting hole, forms air inlet end, the other end is equipped with air outlet end, for connecting the air intake system of range extender;Drive assembly is located on grille frame, for driving flap to carry out overturning movement, to open or close air inlet end. By arranging air inlet end in the upper or front area of car rear wheel package, and setting flap controlled by drive assembly, active opening and closure to air inlet end are realized. When vehicle is in pure electric driving mode, range extender does not need to work, flap closes air inlet end under the action of drive assembly, effectively reduces vehicle front end airflow interference, reduces air resistance, improves pure electric cruising range;When range extender starts, flap is automatically opened, guarantees engine air intake demand.
Owner:WUHAN JIANGXIA CHUNENG AUTOMOBILE TECHNOLOGY R&D CO LTD
Safety seat
The application discloses a safety seat, comprising a base, a seat, an adjusting assembly and a backrest, the base is provided with a connecting boss extending in the front-rear direction and provided with a plurality of clamping holes in the front-rear direction; the seat is provided with a connecting groove matched with the connecting boss, so that the seat is adjustably arranged on the base; the adjusting assembly is arranged on the seat, and the clamping piece of the adjusting assembly is selectively clamped into any clamping hole to fix the seat; the backrest is detachably connected to the seat through a backrest pipe, the connecting boss is provided with a limiting groove, the backrest pipe is provided with a blocking piece, and the seat is provided with a limiting piece selectively extending into the limiting groove; when the backrest is removed, the clamping piece is clamped in the last clamping hole, and the limiting groove is matched with the limiting piece to lock the seat; when the backrest is installed on the seat, at least part of the blocking piece is located between the limiting groove and the limiting piece to release the locking of the seat, so that the application range is improved, and the safety and reliability are improved.
Owner:CHINA WONDERLAND NURSERYGOODS
In-situ system and method for dimension acquisition of electric arc additive deposition based on binocular vision
ActiveCN115908534Bgood synchronizationAccurate measurement dataImage analysisIncreasing energy efficiencyDeposition processVisual perception
The application provides a kind of based on binocular vision's electric arc additive deposition size in-situ acquisition system and method, comprising: electric arc additive manufacturing system, image acquisition and processing system, wherein the electric arc additive manufacturing system is configured with robot, intelligent welding machine, wire feeder, welding torch, welding protection gas bottle, the image acquisition and processing system is configured with binocular camera, computer;The binocular camera is installed on the welding torch, for collecting the deposited pass image in deposition process, and the deposited pass image collected is sent to computer for processing, obtains the overall size of current deposition piece.The application can directly monitor the deposition size in deposition process, obtain the size of deposition piece, with good synchronism, not by large workpiece size limitation advantage.And not by size restriction, can realize the size in-situ monitoring in the process of large piece electric arc additive manufacturing, measurement data is more accurate.
Owner:SHANGHAI JIAOTONG UNIV
A clothing pocket folding mechanism with high adaptability and stability
The utility model belongs to the technical field of bag opening machine relates to a kind of clothing pocket folding mechanism with high adaptability and stability, including the folding knife mounting plate of lifting motor module drive, and folding knife mounting plate is provided with front and rear pneumatic finger and left and right pneumatic finger;Two executing elements of the front and rear pneumatic finger are respectively connected with front and rear pull rod, and the front and rear pull rod is respectively connected with front and rear folding knife adjusting seat, and front and rear folding knife adjusting seat is provided with front and rear folding knife;Two executing elements of the left and right pneumatic finger are respectively connected with left and right pull rod, and the left and right pull rod is respectively connected with left and right folding knife adjusting seat, and left and right folding knife adjusting seat is provided with left and right folding knife.The clothing pocket folding mechanism provided by the utility model has stronger adaptability and higher stability compared with the existing folding mechanism.
Owner:ZHEJIANG MAQI SEWING MACHINE
A gravity return hinge device
The utility model discloses a gravity return hinge device belongs to door body hinge field, including upper hinge, pin shaft, first shaft sleeve, second shaft sleeve and lower hinge, upper hinge is integral type structure, is constituted by upper hinge board, sleeve and pivot, upper hinge board bottom surface and sleeve top end vertical, pivot is located in the sleeve, and with sleeve coaxial arrangement, pivot top end and upper hinge board vertical, bottom end and stretch out sleeve, be equipped with first through -hole and second through -hole on the sleeve wall, be equipped with third through -hole on the pivot, and three through -holes coaxial arrangement, pin shaft passes first through -hole, third through -hole and second through -hole in proper order, and with three through -hole interference fit, first shaft sleeve rotatable sleeve on pin shaft between first through -hole and third through -hole section, second shaft sleeve rotatable sleeve on pin shaft between second through -hole and third through -hole section. Pin shaft and upper hinge jointly bear the weight of door body, greatly improved the bearing strength to door body, has promoted the service life of hinge.
Owner:QINGDAO MEIZHI COLD CHAIN TECH CO LTD
A dual-spray arm structure for a dishwasher and the dishwasher
Owner:GUANGDONG JIENUO HOUSEHOLD APPLIANCES CO LTD
A multi-directional extension mechanism, leg rest and car seat
Owner:JIFENG SEAT (WUHU) CO LTD
Cooperative control method for multi-axle heavy off-road vehicle height-adjustable independent suspension
PendingCN122100724Areduce connectionsSimple structureBiological modelsResilient suspensionsClosed loop feedbackSimulation
The application provides a cooperative control method for a multi-axle heavy off-road vehicle height-adjustable independent suspension, and belongs to the technical field of vehicle suspension control, and the method comprises the following steps: S1, scenario-based hierarchical setting of a target vehicle height; S2, synchronous acquisition of a vehicle body state and load pressure and difference calculation; S3, load adaptive single pendulum wave-cuckoo cooperative motion planning; S4, pilot pressure synchronous output control based on load grading; S5, multi-channel flow decoupling proportional valve dynamic control; S6, chaotic-single pendulum wave fusion adaptive sliding mode closed-loop feedback; S7, double-verification system locking and unloading control. The application solves the technical pain points of complex structure, poor synchronism, insufficient stability, and low precision in the height adjustment of the existing multi-axle heavy off-road vehicle oil gas spring suspension, and finally realizes the significant improvement of the passing capacity and handling stability performance of the multi-axle heavy off-road vehicle in the off-road scenes such as muddy roads, rocky roads, and sand dune roads, and meets the driving requirements in complex road conditions.
Owner:63963 TROOP OF THE PLA
Satellite communication frequency offset estimation and synchronization method, storage medium and satellite communication terminal
ActiveCN121814186BImprove robustnessHigh precisionError preventionCarrier regulationSatellite radioCarrier frequency offset
This application relates to the field of satellite communication technology, specifically to a satellite communication frequency offset estimation and synchronization method, a storage medium, and a satellite communication terminal. The satellite communication frequency offset estimation and synchronization method includes: receiving a satellite radio signal containing a frequency correction channel burst and a broadcast control channel burst; detecting the frequency correction channel burst to obtain a coarse carrier frequency offset; locating the baseband data corresponding to the broadcast control channel burst in the satellite radio signal; pre-compensating the baseband data corresponding to the broadcast control channel burst using the coarse carrier frequency offset, and calculating the residual frequency offset for the residual frequency offset signal; obtaining the total carrier frequency offset based on the coarse carrier frequency offset and the residual frequency offset; and performing full compensation, demodulation, and channel decoding on the baseband data corresponding to the broadcast control channel burst using the total carrier frequency offset to obtain decoded data. This invention combines coarse estimation of the FCCH with fine estimation and verification mechanisms of the BCCH, ensuring the reliability of synchronization even under complex channel conditions.
Owner:SUTAI INTELLIGENT TECH (SHANGHAI) CO LTD