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70results about How to "Timely action" patented technology

Double-station automatic grinding and cutting machine for ceramic green body tubes

The invention provides a double-station automatic grinding and cutting machine for ceramic green body tubes. The machine includes a machine frame, a storage silo, a feeding mechanism, a delivery mechanism, a ceramic green body tube grinding station and a ceramic green body tube cutting station; the ceramic green body tube grinding station is on the left side of the cutting station; the left side of the feeding mechanism is provided with the storage silo, a feeding air cylinder is located at the tail end of the storage silo, and the tail end of a storage silo supporting beam is fixedly provided with a guide plate for ceramic green body tube dropping; the delivery mechanism includes a delivery bracket driving air cylinder and a double-V-shaped groove delivery bracket which are fixed together, and the side of the double-V-shaped groove delivery bracket is fixedly provided with a guide slider; the grinding station includes a core-free supporting wheel, a magnetic-driving device and an abrasive belt grinding device; the cutting station includes a core-free supporting wheel, a magnetic-driving device and a cutting device and further includes a workpiece discharging mechanism. The machine has the advantage that ceramic green body tube surface grinding and ceramic green body tube two-end excess material cutting can be achieved with one machine.
Owner:ZHEJIANG UNIV

Automatic presser foot lifting device of sewing machine

The invention provides an automatic presser foot lifting device of a sewing machine. The automatic presser foot lifting device of the sewing machine comprises a drive source, a transmission lever, a lifting frame, a pressing rod, a pressing rod guide frame and a presser foot. The drive source is fixed to a shell of the sewing machine. The drive source comprises a telescopic shaft. The transmission lever comprises a pivot, a long arm of force and a short arm of force, wherein the pivot is hinged to the shell of the sewing machine, and the long arm of force and the telescopic shaft of the drive source are hinged to the two ends of a connecting rod respectively. The lifting frame comprises a bottom frame and a side frame, wherein the upper end of the side frame is hinged to the short arm of force. The pressing rod guide frame and the presser foot are fixed to a pressing rod body. The portion, below the pressing rod guide frame, of the pressing rod body is matched with a first guide sleeve fixed to the shell. The upper end of the pressing rod is matched with a second guide sleeve fixed to the shell. The lower end face of the pressing rod guide frame is attached to the upper end face of the bottom frame of the lifting frame. According to the automatic presser foot lifting device of the sewing machine, automatic pressure foot lifting motion of the sewing machine can be achieved through the drive source under the action of a small drive force, so that the drive source is small in size and low in manufacturing cost, the sewing machine is more attractive, and packaging and transportation of the sewing machine are facilitated.
Owner:JACK SEWING MASCH CO LTD

Brand-new photovoltaic grid-connected inverter multi-wave-crest MPPT algorithm

The invention discloses a brand-new photovoltaic grid-connected inverter multi-wave-crest MPPT algorithm. The brand-new photovoltaic grid-connected inverter multi-wave-crest MPPT algorithm includes determination of a working voltage meeting formula of a photovoltaic system, determination of a shadow judgment formula and shadow scanning and comprises the specific steps of firstly determining the working voltage meeting formula of the photovoltaic system, determining the shadow judgment formula according to the determined working voltage meeting formula of the photovoltaic system after the working voltage meeting formula of the photovoltaic system is determined, and performing shadow scanning after the judgment formula is determined. When a local shadow is produced, a local best working point is possibly located on the right side or the left side of the best working point in the last minute, but it is unknown whether a current working point is the best working point of the system or not at the moment, scanning is required to be performed again, other local best working points are found out and compared, and then the position of the highest one of the powers of the best working points found out in the comparison process is the best working point of the system.
Owner:SICHUAN SHUWANG TECH

Rotating tower type tool magazine knife-selecting device of numerically controlled machine

The invention belongs to the technical field of numerical control machine tool and in particular relates to a cutter selection device of a rotary tower cutter warehouse of a numerical control machine tool. A cutter motor is arranged on a base; the cutter motor drives a sliding shaft sleeve and a cutter shaft to rotate through a transmission belt and a driven wheel; the sliding shaft sleeve is connected with a cutter shaft through a second clutch disc; a piston rod of a small cylinder is connected with the sliding shaft sleeve and drives the sliding shaft sleeve to slide in the driven wheel so as to realize on-off between the sliding shaft sleeve and the cutter shaft through the second clutch disc; the sliding shaft sleeve can realize sliding and synchronous rotation in the driven wheel through sliding teeth; the outer end part of a camshaft of a large cylinder which is arranged on the base and is connected with a cylinder piston is fixedly connected with a cutter disc and can drive the on-off between the cutter disc and the base; a motor of the cutter disc drives the camshaft and the cutter disc to rotate through a separation mechanism of the cutter disc; and the action of the motor, the large cylinder and the small cylinder is controlled through a controller. The cutter selection device has the advantages that the cutter selection device has a simple structure, low cost, low working noise, convenient mounting and maintenance and is suitable to be popularized and applied to various numerical control machine tools.
Owner:王子彬

Automatic rain shielding device for animal husbandry outdoor captivity

The invention relates to automatic rain shielding devices for animal husbandry, in particular to an automatic rain shielding device for animal husbandry outdoor captivity. According to the provided automatic rain shielding device for animal husbandry outdoor captivity, automatic rain shielding can be completed without many persons, the rain shielding process is small in difficulty and short in time, the rain shielding effect is good, safe and reliable, and a measure can be taken to a captivity fold in time. In order to solve the technical problems, the automatic rain shielding device for animal husbandry outdoor captivity is provided and comprises a supporting rod, a telescopic rod, an electric wire winding wheel, a first draw cord, a first spring, a U-shaped communication box, a movable plate, a first button, a water receiving funnel, a guide rod and the like; the U-shaped communication box and the supporting rod are arranged on the ground; the supporting rod is located on the right of the U-shaped communication box; and the water receiving funnel is connected to the upper left portion of the U-shaped communication box and communicates with the U-shaped communication box. By means of the automatic rain shielding device for animal husbandry outdoor captivity, automatic rain shielding can be completed without many persons.
Owner:季虎

Damping type over discharge buffering device for mine hoisting system

InactiveCN104016206AShort retrofit shutdown cycleReduce security retrofit challengesElevatorsHydraulic cylinderArchitectural engineering
The invention relates to a damping type over discharge buffering device for a mine hoisting system. The damping type over discharge buffering device comprises a steel truss, a damping buffer and a buffering bracket, the steel truss is arranged on the mine wall of the bottom of a mine, one end of the damping buffer is connected with the steel truss, the other end of the damping buffer is connected with the buffering bracket, and a cage of the mine hoisting system falls on the buffering bracket during falling. By means of the damping type over discharge buffering device, a new over discharge prevention device is designed; the damping type over discharge buffering device is installed above over discharge prevention space at the mine bottom of the mine, the steel truss is arranged at the mine bottom, an over discharge prevention buffering device is hung on the steel truss, a damping groove is formed in a piston rod of a hydraulic cylinder, the depth size of the damping groove is changed along with stroke changes, the problem of insufficient over discharge prevention space of old mine transformation is solved, the over discharge prevention device can be additionally arranged in an old mine hoisting system, and security coefficients of mine production can be effectively improved; meanwhile, construction is simple, the construction period is short, the old-mine transformation halt period is short, and the old mine safety transformation problems are decreased as many as possible.
Owner:张纬

Power supply and distribution methods of low-voltage system

The invention belongs to the field of power supply and distribution of low-voltage systems and solves the problem that the current-carrying capacities of main cables or main busbars are not reasonably matched with the passing current in the full path in the mode that a power supply circuit is connected with a plurality of electrical units. The system adopts the mode that the main cables or main busbars with different sectional areas are connected according to stepped variation of the current-carrying capacities and is provided with one-circuit sectional variable diameter main cables or main busbars. The main cables or main busbars are connected with a plurality of electrical units. The current-carrying capacities of the cables or busbars are reasonably matched with the passing current on the whole sections of the main cables or main busbars. Meanwhile, secondary circuit breakers are arranged on the variable diameter parts of the main cables or main busbars and are used for sectional protection of the cables or busbars with different current-carrying capacities in the same circuit together with a main circuit breaker. In the method, the main and secondary circuit breakers act timely when the main cables or main busbars have faults while the materials and the manufacturing cost are saved, not only the requirement of power supply reliability is satisfied, but also the fault range is accurately judged so as to be convenient for rush repair.
Owner:张兵

Anti-crossing road isolation fence

The invention discloses an anti-crossing road isolation fence. The fence comprises multiple mounting seats, a protective structure is arranged at the upper end of each mounting base; the protective structure comprises a guardrail fixed at the upper end of the mounting base; a control groove is formed in the guardrail, a lead screw is inserted into the upper end of the control groove in a penetrating mode, a stress triggering mechanism is connected to the side wall of the lead screw, two symmetrically-arranged power magnetic blocks are fixed to the inner top of the control groove, and two symmetrically-arranged compression grooves are formed in the inner bottom of the control groove. The anti-crossing road isolation fence has the advantages that when a pedestrian climbs over the isolation fence, a pressing plate is pressed in the climbing process by means of force, the screw rod moves downwards, so that a magnetism isolating plate is rotated and dislocated, a sliding magnetic block slides under the magnetic force effect of the power magnetic block, air is conveyed to air cylinders of the adjacent guardrails, corrugated pipes on the adjacent guardrails are unfolded upwards, the height of the guardrails at the climbing position of a climber is increased, and the climber cannot climb over the guardrails.
Owner:台州市腾阳窗饰有限公司

Door closing device for flammable liquid storage safety cabinet

The invention discloses a door closing device of a safe storage cabinet for flammable liquids, belonging to the technical field of storage cabinets. Both sides of the inside of the storage cabinet are equipped with cylinders symmetrically, and the cylinders are connected to the cabinet doors at the corresponding positions through the cylinder pull rods. A fixing plate is installed on the upper end of the inside of the storage cabinet, and the front end of the first connecting rod is connected to the left cabinet. The door is fixedly connected, the front end of the sixth connecting rod is fixedly connected with the right cabinet door, a stop nut is arranged on the left side of the fixed plate, a slide rail is arranged on the right side of the fixed plate, and the front end of the fixed plate A retaining rod is provided, and the fourth connecting rod is provided with a fixing groove, which is reasonably designed, and the safety cabinet door is driven by the cylinder, and when the cabinet door is closed, the interaction between the six connecting rods and the track can be used to achieve Slowly close the left cabinet door first, and then close the right cabinet door. The whole action is timely, safe and orderly, which greatly improves the safety of the flammable liquid storage cabinet.
Owner:上海赛煜金属制品有限公司

Emergency hydraulic system of center hydraulic transmission hydraulic lifting harrow thickener

The invention discloses an emergency hydraulic system of a center hydraulic transmission hydraulic lifting harrow thickener. The series problems caused by power failure of the thickener are solved. The emergency hydraulic system is characterized in that a hydraulic bottom plate block is arranged, a low pressure overflow valve, a high pressure safety valve, a reversing valve I, a throttling valve, a one-way valve II, a pressure reducing valve and a reversing valve II are arranged on the hydraulic bottom plate block, and a hydraulic motor, a one-way throttling valve, an oil cylinder, an electromagnetic ball valve II, an oil return oil filter, an energy accumulator inlet one-way valve, a hydraulic energy accumulator, a pressure detector, a nonelectric lifting harrow electromagnetic ball valve, a manual stop valve, a pressure gauge, a pressure sensor, a nonelectric lifting harrow ball valve connecting emergency power supply and the like are respectively connected through pipelines. According to the emergency hydraulic system of the center hydraulic transmission hydraulic lifting harrow thickener, high pressure oil is stored through the hydraulic energy accumulator, the high pressure oil is released during power failure, and nonelectric automatic harrow lifting is achieved. The emergency power sully is used, so that the nonelectric lifting harrow electromagnetic ball valve is in a normally-closed state and is opened when sudden power failure happens, the nonelectric lifting harrow electromagnetic ball valve is opened by the emergency power supply, the high pressure oil is made to automatically enter an oil cylinder lifting harrow, and the facts that materials press the harrow and a pool is cleared are avoided.
Owner:淮北重科矿山机器有限公司

Lead frame handling system for semiconductor packaging systems

The invention discloses a lead frame clamping system used in a semiconductor packaging system. The lead frame clamping system comprises a clamping system, wherein the clamping system comprises a material loading clamping device and a material fetching clamping device; the material loading clamping device and the material fetching clamping device comprise multiple pairs of pneumatic manipulators; each of the pneumatic manipulators comprises an air cylinder which is provided with a piston rod therein; the side wall of the air cylinder is rotationally connected to a clamping jaw whose section is inverted-L shaped; one end of the clamping jaw is positioned outside the air cylinder, and the other end is extended in the air cylinder; the middle section of the piston rod is provided with a circle of recessed part adaptive to the clamping jaw end part; the bottom, positioned outside the air cylinder, of the clamping jaw is provided with a claw hook. According to the system, the material loading clamping device and the material fetching clamping device both adopt multiple pairs of pneumatic manipulators for series actions; during operation, the pneumatic manipulators are distributed at two sides of the lead frame and timely, accurately and quickly clamp the lead frame; the clamping jaw stays open status at the beginning; the problem of lead frame deformation due to the clamping jaw hitting on the lead frame during clamping the lead frame can be avoided.
Owner:ANHUI DAHUA SEMICON TECH CO LTD

Safety strategy system and method based on blind area monitoring

The invention relates to the technical field of automobiles, in particular to a safety strategy system based on blind area monitoring. The system comprises a distance detection module, a speed detection module, a vehicle door locking module and a processing module, wherein the distance detection module is used for detecting the distance between a vehicle body and an obstacle in real time to obtain a distance parameter; the speed detection module is used for detecting the movement speed of the obstacle in real time to obtain a speed parameter; a preset duration is stored in the processing module; the processing module is used for calculating a motion distance parameter according to the preset duration and the speed parameter; the processing module is used for comparing the motion distance parameter with the distance parameter to obtain a comparison result; and the vehicle door locking module is used for locking a vehicle door when the comparison result is that the movement distance parameter is greater than the distance parameter. In the prior art, the accident that the vehicle door collides with other vehicles due to mistaken opening of the vehicle door is likely to happen. Compared with the prior art, the obstacles in the blind area can be effectively detected, so that the vehicle door is locked in time, and the safety is effectively improved.
Owner:HOZON NEW ENERGY AUTOMOBILE CO LTD

Independent hydraulic wheel brake

The invention discloses an independent hydraulic wheel brake. The brake comprises clamp arms which are arranged symmetrically, a clamp base, brake shoes, a valve block, a spring hydraulic cylinder, ahydraulic pump and a hydraulic valve bank. The hydraulic pump is connected with the motor. A pressure cavity, a backpressure cavity, an oil inlet and an oil return port are formed in a spring hydraulic cylinder block. An oil way of the valve block communicates with the oil inlet and the oil return port in a butt-joint mode. A pressure end guide rod is arranged on one end surface of a piston and stretches out of one end of the cylinder block. A spring is arranged in the cylinder block, one end of the spring is fixedly connected with the end surface of the cylinder block, and the other end of the spring abuts against the end surface, where no pressure end guide rod is arranged, of the piston. One clamp arm is hinged to the pressure end guide rod, and the other clamp arm is hinged to the cylinder block. One end of the clamp base is hinged to one clamp arm, and the other end of the clamp base is hinged to the other clamp arm. The pair of brake shoes are hinged to the ends of the pair of clamp arms correspondingly. According to the independent hydraulic wheel brake, a highly integrated hydraulic driving mode is adopted, independent working is achieved, oil leakage is eliminated, and thesafety of main machine equipment is improved.
Owner:湖南三占科技股份有限公司
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