Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

88results about How to "Increase sharpness" patented technology

Laser backlight liquid crystal display (LCD) system

InactiveCN101702063AImprove color gamutImprove light energy utilization and spatial resolutionMechanical apparatusStatic indicating devicesPersistence of visionLight source
The invention provides a laser backlight liquid crystal display (LCD) system which comprises a laser source with three primary colors, a light combination system, dot line light source switching system(s), a backlight plate, a liquid crystal plate and a signal receiving and processing drive system, wherein the light combination system is positioned between the laser source and the dot line light source switching system(s), the dot line light source switching system(s) is/are positioned at one or two side(s) of the backlight plate, the liquid crystal plate is positioned on the backlight plate, and the liquid crystal plate is connected with the signal receiving and processing drive system. By adopting the laser with the three primary colors, high brightness and good monochromaticity as the backlight, and the liquid crystal plate without a colored filter film, the system can realize the laser sequential display way by controlling the sequential luminescence of a laser with the three colors by timing sequence, and utilizes the characteristic of persistence of vision of human eyes to realize time color mixture, thus greatly expanding the displayed color gamut, and improving the optical energy utilization rate and the space resolution rate; furthermore, as the front of the liquid crystal plate is stuck with a view field angle expanded film, the view field can be expanded.
Owner:SHANDONG UNIV

Reversible holes turning insert

InactiveCN1799736AIncrease sharpnessEffectively guide the flowTurning toolsEllipseEngineering
The invention provides a variable-position turning cutter in polyton shape for accurately turning the internal hole, which comprises upper and lower surfaces and several side walls. Wherein, the side walls intersect the upper surfaces to form the cutting edge; and the upper surface forms the rack face of cutting edge. Said invention is characterized in that: two nearby side walls via taper surface are connected to form back face; upper surface, side wall and arc surface are intersected to form an angle of cutting edge; the cutting edges are symmetry distributed relative to the geometry bipartition of said angle of cutting edge to form spatial spiral line shape while the top edge is highest; a groove is arranged in the middle of top part of said cutting edge angle which also has a chip-breaker groove formed by spherical boss in said groove; the tail part of spherical boss via generatrix is connected to a cylinder surface with a ª’ relative to horizontal direction and the upper surface of cutting edge; the bottom of said groove is in ellipse shape and same height of the bottom of knife slit; and the side wall and the axes of blade have a included angle of ª‰. The inventive variable-position turning edge has sharp blade, controllable cutting direction and shape, which can remove chip successfully.
Owner:ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD

Efficient motorized geotome without moisture loss

The invention provides an efficient motorized geotome without moisture loss. The efficient motorized geotome without moisture loss comprises a power source, wherein the power source is connected with a drill rod through drill rod threads; the drill rod is connected with a drill drum through drill drum threads; the drill drum is internally provided with a bulldozing screw rod, and the lower part of the drill drum is connected with a drill head through drill head threads; and the length of the drill drum is at least 30cm, and the length of the drill rod is at least 50cm. By utilizing the technical scheme of the invention, three cutting teeth are uniformly distributed on the drill head, the root parts of the cutting teeth are provided with cutter root circular arcs, thus the flexural strength of the cutting teeth is enhanced, and the service efficiency of the drill head is improved; and based on the design that the cutting face of the drill head is tangential to an inner cylindrical faceand the secondary cutting edge of the drill head is tangential to the cutter root circular arcs and is transitioned to a cutter tip structure through natural circular arcs, the one-time drilling depth of the drill head is ensured to be deeper, and the service efficiency of the drill head is improved.
Owner:HENAN AGRICULTURAL UNIVERSITY

LSPR adjustable gold@silver core-shell nanostar and preparation method thereof

The invention relates to an LSPR adjustable gold@silver core-shell nanostar and a preparation method thereof. The gold@silver core-shell nanostar comprises a gold nanostar and a silver shell layer coated on the surface of the gold nanostar, wherein the gold nanostar comprises a gold nanosphere positioned at the core and gold nanospines on the surface of the gold nanosphere. Firstly, a liquid-phasechemical method regulated by seeds is adopted, the concentration of the gold nanosphere in a precursor is regulated, and the regulating effect of a surfactant on the growth of a gold nanostructure isutilized, so that the gold nanostar with adjustable size and the LSPR peak between 587-890 nm is prepared; and a polyhydroxy alcohol reduction method is further adopted, ethylene glycol is used as asolvent and a reducing agent, silver nitrate is used as a silver source, the silver shell layer is coated on the surface of the gold nanostar in situ, the surface enhanced Raman scattering (SERS) activity of the nanostar structure is greatly improved, and meanwhile the morphology and the LSPR interval of the core-shell nanostar are maintained. The LSPR adjustable gold@silver core-shell nanostar provides a new choice of materials for a plasmon-driven solar-chemical energy photocatalytic reaction.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Thread machining blade

ActiveCN103639543AReduced contact area and frictionIncrease cooling areaThread cutting toolsMachiningEngineering
The invention discloses a thread machining blade which comprises a blade body. The blade body is provided with a blade center hole and cutting edge parts. Each cutting edge part is defined by a front blade surface, a cutting edge angle arc surface and two cutting edge angle side surfaces in an enclosed mode, wherein the two cutting edge angle side surfaces intersect with the front blade surface to form two side cutting edges, the included angle between the two side cutting edges is a cutting edge angle, the front blade surface is connected with the upper surface of the blade body through a connecting curved surface, the front blade surface is provided with a chip guiding groove which is arranged in a symmetric mode relative to the angular bisector N of the cutting edge angle, a spherical chip breaking boss higher than the front blade surface is formed in an outward protruding mode from the inside of the chip guiding groove, a triangular chip breaking boss is formed by extending from the connecting curved surface towards the inside of the chip guiding groove, and the triangular chip breaking boss is connected with the chip guiding groove in a circular arc transition mode. The thread machining blade has the advantages that machining is easy and fast, chips are low in friction in the flowing process, the degree of finish of a workpiece thread is high, the blade is high in strength, machining efficiency can be effectively improved, and production cost is lowered.
Owner:ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD

Punching device preventing automobile sealing strip with skeleton from machining deformation

A punching device preventing an automobile sealing strip with a skeleton from machining deformation comprises a female die 7, a pressure plate 5 and a cutter 6, and is characterized in that a groove 9 for placing the sealing strips and a guide mechanism 8 for guiding the cutter 6 to finish the punching operation are arranged on the female die 7; the guide mechanism 8 is intersected with the groove 9 to form a guiding included angle Gamma; the cutter 6 is provided with a horizontal cutting edge 12 and a vertical cutting edge 10; the moving direction of the horizontal cutting edge 12 and the moving direction of the cutter 6 form a cutting edge included angle Beta 1; one end, far from the pressure plate 5, of the horizontal cutting edge 12 inclines towards the punching advance direction of the cutter 6; the cutting edge included angle Beta 1 is smaller than the guiding included angle Gamma; in punching, the sealing strips are cut step by step by the horizontal cutting edge 12 at first, then are cut by the vertical cutting edge 10, so that the impulsive force of the cutter 6 on the sealing strips is reduced, and the deformation of the sealing strips is further reduced, the incision surfaces of the sealing strips are smooth, and the skeleton deformation is avooided.
Owner:瀚德(中国)汽车密封系统有限公司

Axial-force-controllable surgical bone drill using brazed PCBN (Polycrystalline Cubic Boron Nitride) superhard material drill bit

The invention relates to an axial-force-controllable surgical bone drill using a brazed PCBN (Polycrystalline Cubic Boron Nitride) superhard material drill bit. The axial-force-controllable surgical bone drill has the advantages that the control accuracy is high and damages to brain tissues can be effectively avoided. A direct-current motor is arranged in the case of a drill body. The direct-current motor is connected with an intelligent integrated control system and a direct-current power supply. The output shaft of the direct-current motor is connected with a gear transmission device. The gear transmission device is connected with a drill bit chuck through a transmission shaft. A drill bit is installed on the drill bit chuck. A thrust bearing is arranged at the junction of the drill bit chuck and the transmission shaft. The thrust bearing is in close contact with a deformable element. The deformable element is in close contact with the case. The deformable element is positioned by using an elastic element. A resistance strain gage is bonded on the internal surface of the deformable element. The resistance strain gage is additionally connected with the intelligent integrated control system. A sealing device is arranged between the drill bit chuck and the case. The drill bit comprises a cylindrical basal body. A twist drill tip is arranged on the cylindrical basal body. A spiral groove is additionally arranged on the cylindrical basal body. PCBN superhard materials are arranged in the spiral groove and on the surface of the main rear blade of the drill bit.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Indexable turning blade for high temperature alloy semifinishing under high-pressure cooling

The invention relates to an indexable turning blade for high temperature alloy semifinishing under high-pressure cooling, and belongs to the technical field of turning tools. The turning blade comprises a turning blade body, the shape of the outline of the horizontal cross section of the turning blade body is hexagon, a fastening screw hole is formed in the geometrical center of the hexagonal turning blade body, a front cutter face is arranged on the outer periphery of the top face of the hexagonal turning blade body, and the six vertex angles of the hexagonal turning blade body are composed of three 80-degree angles and three 160-degree angles which are sequentially and alternatively arranged; arc cutter tips are arranged at the three 80-degree angles of the hexagonal turning blade body, negative chamfered edge cutting edges are arranged at the six outer edges of the top face of the hexagonal turning blade body, and protrusions are arranged nearby each arc cutter tip; and fold line step-shaped chip breaker grooves are arranged on the top face of the hexagonal turning blade body and the corresponding positions of the 160-degree angles on the front cutter face, chip grooves are composed of the fold line step-shaped chip breaker grooves and the front cutter face, and the bottom face of the hexagonal turning blade body is a blade installing supporting face. The indexable turning blade is used for high temperature alloy semifinishing under high-pressure cooling.
Owner:HARBIN UNIV OF SCI & TECH

Method for preparing needle point of atomic force microscope

The invention relates to the field of atomic force microscopes, and provides a method for preparing a needle point of the atomic force microscope. A current feedback loop is composed of a power supply U, a resistor, a current feedback system, a cantilever, a needle point, a gap between the needle point and a sample, and the sample; concave pits with the diameter of 100nm and the depth of 30nm are formed in the surface of a first specific sample every 100nm; bulges with the height of 20nm and the diameter of 10nm are formed on the surface of a second specific sample every 20nm; a needle-shaped object is generated by the first specific sample, and a needle-shaped object, which is vertical to the surface of the sample, grows by utilizing the second specific sample; a parameter for determining whether the needle point is sharp or not is checked: the other sample with a relatively flat surface is used and works at a phase shaft mode; an initial amplitude is set to be AO, a scanning distance is set to be 15nm and a pre-set value is 0.6AO; if the phase shift on the flat surface is negative, the needle point is a sharp needle point capable of meeting experiment requirements; if the phase shift is not negative, a process of applying the power supply to form a high electric field in the gap between the needle point and the sample is repeated.
Owner:JINHUA VOCATIONAL TECH COLLEGE

Manufacturing method of bucket teeth for excavating

The invention provides a manufacturing method of bucket teeth for excavating. The bucket teeth comprise a connecting base and tooth tips. The left side wall and the right side wall, away from one endsof the tooth tips, of the connecting base are provided with counter bores. The two sides of the upper end face and the lower end face of each tooth tip are provided with concave surfaces. The concavesurfaces extend to the front edges of the tooth tips from the connecting portions of the connecting base and the tooth tips. The reinforcing portion inclining downwards is arranged between every twoconcave surfaces. The free end portions of the tooth tips are provided with sharp teeth separated at equal intervals. A first reinforcing rib and a second reinforcing rib are arranged between every two adjacent sharp teeth. The first reinforcing ribs and the second reinforcing ribs are arranged in a staggered manner. The free end portions of the tooth tips are provided with the separated sharp teeth, the keenness degree of the tooth tips is improved, excavation is benefitted, the sharp teeth are provided with the first reinforcing ribs and the second reinforcing ribs in a penetrating manner, the first reinforcing ribs and the second reinforcing ribs are arranged in a staggered manner, impact force borne by the sharp teeth is dispersed, it is ensured that the sharp teeth cannot be bent or deformed under the larger impact force, and the service life of the bucket teeth can be effectively ensured.
Owner:TIANJIN CMC XIONGFENG CONSTR MACHINERY

Particle material rotary valve

PendingCN109484861AContinuous and uniform fluidityContinuous uniform stateBulk conveyorsRotary valveReducer
The invention discloses a particle material rotary valve. The particle material rotary valve comprises a valve body, a rotor, a driving mechanism, a controller and a junction box, wherein the upper port of the valve body is a feeding port and the lower port of the valve body is a discharge port, each of a left port and a right port of the valve body is provided with an end plate, and a shaft holeis formed in the middle of each end plate; a plurality of material cutting teeth are arranged on one side of the inner wall of the feeding port side of the valve body in a protruding mode, an exhaustport is formed in the other side of the valve body, exhaust grooves are formed in the bottom surfaces of the material cutting teeth, and an exhaust channel connected to the exhaust port and the exhaust grooves is formed in the upper part of the inner wall of the valve body; the inner wall, on the same side of the exhaust port, of the discharge port of the valve body is provided with the material cutting teeth in the protruding mode; the rotor is in a star-shaped structure, and comprises a central shaft and a plurality of blades thereon; the driving mechanism comprises a motor, a speed reducer,a driving chain wheel, a driven chain wheel and a chain, a chain wheel protecting cover and a sensor, wherein the motor and the speed reducer are arranged on one side of the valve body, the driving chain wheel is arranged on a speed reducer output end and the driven chain wheel is arranged on the end part of one end of the rotor central shaft, the chain wheel protecting cover is arranged outsidethe driving chain wheel and the driven chain wheel in a covering mode, and the sensor is arranged on the outer side of the other end of the rotor center shaft; and the controller and the junction boxare arranged on the other side of the valve body, and the motor and the sensor are electrically connected to the interior of the junction box.
Owner:SHANGHAI BOLONG EQUIP TECH CO LTD

Thread cutting insert for thread turning processing and external thread component manufacturing method

The present invention relates to a thread cutting insert for thread turning processing, and the cutting insert has a thread cutting edge formed on the outer peripheral surface of a shaft member by thread turning processing. A thread groove is bilaterally symmetrical in the section passing through the axis of the shaft member, and thus does not cause the reduction of machining surface accuracy, soas to reduce the cost of processing. The cutting edge is formed in a manner that the one side face of the cutting insert is used as the flank face, and the common flank face with the main flank angleof 0 is formed as the flank face, and the rake face is formed on the front and rear surfaces of the cutting insert. There are two cutting edges on one side of the face. In the thread turning process,interrupted cutting of minute portions is performed, and the cutting edge after one cutting operation is a machining surface away from the thread groove processed by the previous cutting. Therefore, without the main relief angle, the machining surface accuracy is not reduced. Therefore, the cutting insert is provided with the cutting edge on the front and back without the main relief angle, and the cutting edge strength is improved without reducing the accuracy of the machining surface, thereby reducing the cost of the machining.
Owner:NGK SPARK PLUG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products