495results about How to "Reduce frequency" patented technology

A thin-wall annular part zero-point quick-change tool with cutting waste liquid collecting and discharging functions belongs to the technical field of aero-engine part manufacturing and comprises a zero-point quick-change tool mother disc, a zero-point quick-change tool son disc, a pneumatic blind rivet locking and positioning mechanism, a guide positioning pin mechanism, a thin-wall annular part clamp and a cutting waste liquid collecting and discharging assembly. According to the zero-point quick-change tool for the thin-wall annular part, cutting waste liquid can be efficiently discharged in the machining process of the thin-wall annular part, meanwhile, cutting impurities are filtered, and the reliability and stability of cutting waste liquid discharging are guaranteed; in the transferring process of the thin-wall annular part, the cutting waste liquid can be automatically sealed and stored, the cutting waste liquid is prevented from dripping on a mechanical arm or other transferring equipment of an automatic production line, the frequency and difficulty of equipment cleaning and maintenance are reduced, the production time occupancy rate of equipment cleaning and maintenance is further reduced, and the production efficiency is further improved. Meanwhile, potential safety hazards caused by the fact that cutting waste liquid drips on equipment are avoided.

The invention discloses an existing anchoring and shotcreting side slope ecological restoration technology and method with shrub planting as the core, a side slope vegetation hole environment improving device and a hole filling layered structure design are included, and the side slope vegetation hole environment improving device is mainly composed of a conical threaded drill bit, a connecting rod, a motor, a metal connecting hose, a pressure storage tank and an air compressor. The motor provides power for penetration of the gas injection needle head, and the air compressor provides power for injection of the plant nutrient solution; the vegetation hole layered structure comprises a bottom water retention layer, a base fertilizer layer, a nutrient soil layer and a surface covering layer; environment improvement is conducted on the vertical and horizontal directions of the planting holes through an environment improvement device, local dominant shrubs are planted in the planting holes, and local dominant vine plants are planted at the top of the slope to comprehensively and ecologically protect the slope; comprising the following steps: step 1, investigating and surveying plant communities and analyzing slope stability; step 2, slope vegetation hole environment improvement; 3, planting hole construction; and 4, slope top vine plant ecological slope protection construction is carried out.

The invention discloses a key value storage system indexing method oriented to an NVM-NVMe SSD (Non-Volatile Memory-Non-Volatile Memory Express Solid State Disk) hybrid architecture, which comprises the following steps of: constructing a heterogeneous storage architecture taking cold and hot data perception as a core driving mechanism, coordinating and managing two types of storage media, namely a non-volatile memory NVM and a solid state disk NVMe SSD, and realizing efficient identification, layered writing and dynamic migration of cold and hot data. According to the method, the characteristics of low delay, durability and byte addressing of the NVM are utilized, the frequency and I / O overhead of Flush and Compaction operations are reduced in a data write-in path, meanwhile, the problem of mixed storage of cold and hot data is avoided, and therefore the overall performance and storage efficiency of a system are remarkably improved. In addition, by introducing an asynchronous migration module, the method can dynamically adapt to the change of data popularity along with time evolution, and effectively support high performance and high availability of the key value system in long-term operation.

The invention relates to the technical field of electric energy optimization, and provides a micro-grid electric energy quality optimization treatment method and system. The method comprises the following steps: establishing a micro-grid model which comprises a power generation unit, an adjusting unit and a load group; setting a governance interval, and predicting a power generation power curve and a power utilization power curve in the governance interval; according to the power generation and utilization power curve, simulating to obtain an electric energy quality analysis value of the micro-grid; calling electric energy quality multi-dimensional constraints and judging an analysis value; when the constraint is not met, a control scheme is generated according to the power generation and utilization power curve in combination with an adjusting unit; and according to the control scheme, controlling the power generation and regulation unit in the treatment interval to supply power to the load group. The technical problem that the electric energy quality of the micro-grid is difficult to guarantee under the conditions of complex load requirements and unstable power generation is solved, and the effects of optimizing the electric energy quality of the micro-grid and guaranteeing the power utilization requirements of the industrial park through the multi-mode adjusting unit and accurate matching of the generated power and the load power are achieved.

The invention discloses a welding strip cutting mechanism, and belongs to the technical field of welding strip machining equipment. A welding strip cutting mechanism comprises a tool bit assembly, a tool bit driving assembly and a cutter lifting assembly. The tool bit driving assembly is installed below the tool bit assembly, and the output end of the tool bit driving assembly is connected with the input end of the tool bit assembly so as to drive the tool bit assembly to operate. The cutter lifting assembly is installed at the bottom of the cutter head driving assembly, and the output end of the cutter lifting assembly is connected with the input end of the cutter head driving assembly so as to drive the cutter head driving assembly to do reciprocating lifting motion in the vertical direction. The cutter head assembly comprises a cutter shell, a first cutter and a second cutter; the first cutter and the second cutter are arranged oppositely and abut against each other to form a cutter assembly, and the cutter shell is arranged on the periphery of the cutter assembly in a sleeving mode. And a flow guide groove is formed in the side, facing the second cutter, of the first cutter, so that the influence of scaling powder and the like on the cutters is reduced, and the abrasion of the cutters is reduced.

The invention discloses a treatment formula acting on dizziness and a preparation method thereof, the treatment formula comprises the following raw materials: 50-70 parts of Poria cocos, 60-80 parts of radix bupleuri, 40-50 parts of cassia twig, 10-20 parts of bighead atractylodes rhizome, 20-30 parts of gastrodia elata, 12-21 parts of dried orange peel, 12-25 parts of white peony root, 5-12 parts of licorice, 4-12 parts of dragon bone, 3-8 parts of red sage root, and 3-8 parts of pinellia ternate, and the invention relates to the technical field of medicine preparation. According to the treatment formula acting on dizziness and the preparation method thereof, the dizziness symptom can be relieved, for example, the dizziness symptom is relieved, the balance capacity is improved, the dizziness attack frequency and duration are reduced, cerebral ischemia and cerebral blood supply insufficiency are improved, neural function recovery is facilitated, the memory is enhanced, meanwhile, through cooperation of the medicinal materials, the physique of a patient can be improved, and the curative effect is good. The headache and dizziness symptoms are fundamentally treated, and the effect is good.

The invention discloses an alloy smelting batching scheme generation method and system, particularly relates to the technical field of metal material production and supply chain collaborative optimization, and is used for solving the problems of uncontrollable execution, cost waste and quality risk caused by disconnection of static parameters and a dynamic supply chain in an existing batching scheme. The method comprises the following steps: acquiring target alloy component demand parameters, raw material inventory allowance and purchase cycle parameters; identifying a dynamic constraint key material with a supply interruption risk; establishing a dynamic constraint model containing an inventory safety buffer threshold based on the historical consumption volatility; candidate batching schemes are generated through multi-level optimization; verifying inventory performability and compatibility of alternative material components; sorting and outputting the effective schemes according to the cost and inventory suitability; through supply chain risk quantification and dynamic constraint modeling, the feasibility of a batching scheme is remarkably improved, and production halt loss and potential quality hazards caused by supply interruption or blind substitution are reduced.

The invention discloses a power industry network security collaborative defense system based on a threat hunting technology, and particularly relates to the technical field of network security defense, and constructs a threat intelligence defense model comprising a threat intelligence sharing platform, a multi-layer defense architecture building unit, a network attack behavior analysis unit and a risk visual display unit. Security log information in a power system is collected and analyzed in real time, potential network security threats are found in time, and early warning is automatically given out. Acquiring network security threat information by building a threat intelligence sharing platform and a multi-layer defense architecture building unit; therefore, rich intelligence resources are provided for the risk visualization display unit, the risk visualization display unit can identify and analyze potential threats more accurately, quick response and effective disposal of the threats are achieved by establishing a linkage response mechanism among the hierarchies, and the risk visualization display unit is more efficient. The problem that in the prior art, a power industry network security cooperative defense system cannot provide perfect network security threat information is solved.

The invention relates to the technical field of calcium silicate boards, and discloses a production method of an environment-friendly light calcium silicate board, the calcium silicate board comprises the following raw materials: fly ash, cement, slaked lime, a reinforcing component, an inorganic modified filler and water; wherein the reinforcing component is bamboo fiber of which the surface is grafted with 1-naphthol-3, 6-sodium disulfonate, and the breaking strength of the calcium silicate board can be effectively improved by utilizing the bamboo fiber and sulfonic acid groups in the reinforcing component; according to the inorganic modified filler, a polymer with a large amount of quaternary ammonium salt and carboxyl groups is inserted between layers of rectorite, so that the compactness of the calcium silicate board is enhanced, and the strength of the calcium silicate board is further improved. Through the synergistic effect of the raw materials, the strength of the calcium silicate board is remarkably improved, so that the service life of the calcium silicate board is prolonged, and the application effect of the calcium silicate board in various fields is effectively improved.

The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a photovoltaic support operation and maintenance management monitoring device comprising a sensor module used for collecting photovoltaic support data and photovoltaic support environment data and comprising a temperature sensor, a humidity sensor, a tuyere meteorological instrument, a tilt angle sensor and a pressure sensor; the data preprocessing and transmitting module is used for preprocessing the data acquired by each sensor and equipment in the sensor module and uploading the data to the operation and maintenance management monitoring module; the operation and maintenance management monitoring module is used for receiving the data uploaded by the data preprocessing transmission module and storing, monitoring, analyzing and displaying the data; and the early warning and diagnosis module is used for setting a threshold value and carrying out early warning and diagnosis on abnormal data. According to the photovoltaic support operation and maintenance management monitoring device provided by the invention, manual inspection is reduced, real-time monitoring of the state of the photovoltaic support is realized, timeliness and accuracy of operation and maintenance management are improved, and safe operation of a photovoltaic power station is guaranteed.

The invention relates to the technical field of motor body components, in particular to an oil-cooling three-in-one motor shell which comprises an outer protective shell, an inner assembly pipe is movably mounted in the outer protective shell, limiting end covers are fixedly mounted at the top and the bottom of the inner assembly pipe, inner positioning pipes are fixedly mounted in the limiting end covers, and a plurality of stators are movably mounted in the inner positioning pipes. The movable end covers are arranged above and below the structure formed by the inner assembly pipe and the limiting end cover, the movable end covers are movably clamped in the outer protection shell, cooling oil passing through the one-way valve flows back into the side oil guide pipe, circulation of the cooling oil is achieved, heat is taken away, only part of the cooling oil in the motor shell is needed in the using mode, and therefore the cooling oil can be recycled. When the part of the cooling oil cannot be used, the part of the cooling oil is replaced, and the purchasing of the cooling oil usually needs certain expenditure. The purchase cost can be directly reduced by reducing the using amount of the cooling oil, and the cooling oil needs to be replaced and maintained regularly in the using process, so that certain cost is generated.

The invention discloses a metering industry park lighting facility operation and maintenance control system, which relates to the technical field of intelligent control and comprises a remote monitoring module, a fault diagnosis and alarm module, an energy-saving management module, a data analysis and report generation module and a mobile terminal management module. The remote monitoring module is used for monitoring the operation state parameters of the lighting facility in real time, and the operation parameters comprise the brightness, the voltage and the current of the lamp. According to the operation and maintenance control system for the lighting facilities in the metering industry park, the operation state parameters, including the brightness, the voltage and the current of the lighting facilities, of the lighting facilities can be monitored in real time through the remote monitoring module and the system, comprehensive monitoring of the lighting facilities is achieved, the operation and maintenance efficiency is greatly improved, the frequency and the cost of manual inspection are reduced, and the working efficiency is improved. Fault diagnosis can be automatically carried out on the operation parameters, alarm information is sent out after it is determined that faults exist, meanwhile, the positions of the faults are located, and operation and maintenance personnel can quickly respond and process the faults.

The invention discloses a high-stability weighing sensor based on self-adaptive structure adjustment, relates to the technical field of weighing sensors, and aims to solve the technical problem that the sensor bears unbalance loading force due to the fact that the placement position of an object is deviated, and the high-stability weighing sensor comprises a fixed base and a resistance strain type weighing sensor fixedly installed at the top of the fixed base. An adjusting mechanism is arranged at the top of the fixed base, and a stabilizing mechanism is arranged at the top of the adjusting mechanism. According to the invention, the floating seat is connected with the bearing seat through the spherical universal joint, and when a weighing object is placed at the edge of the bearing seat and causes unbalance loading, the spherical universal joint can actively adjust the posture of the bearing seat through inclination, and the L-shaped elastic arm at the unbalance loading side is matched to generate tiny bending due to increased stress; in the force transmission process, the first arc thin connection section can deform through self elasticity, interference of transverse component force on the main elastic body is eliminated, and the problem that the sensor bears unbalance loading force due to the fact that the placing position of an object is deviated is solved.

The application relates to the technical field of wireless products, in particular to a wireless product frequency calibration method and a wireless product frequency calibration system thereof. When a test calibration board detects that a DUT product starts a radio frequency end and stably works, a stable square wave signal output by a high-frequency crystal oscillator is acquired, a pulse width test is carried out in response to a PC host computer instruction, an actual crystal oscillator frequency is obtained, an absolute radio frequency deviation is calculated according to the actual crystal oscillator frequency and is uploaded, the PC host computer judges whether the absolute radio frequency deviation exceeds a pre-warning limit value, if the absolute radio frequency deviation exceeds the pre-warning limit value, a target crystal oscillator absolute frequency deviation value is reversely calculated and is issued, the test calibration board generates a first standardized compensation value, and the DUT product frequency deviation is retested according to the first standardized compensation value, and the absolute radio frequency deviation after the retest is less than a qualified limit value. The application realizes efficient and accurate calibration.

The utility model provides a kind of monitoring system of photolithography machine internal environment, comprising: photolithography machine;Air circulation air outlet located in the photolithography machine inside;Particle detection device located at the air circulation air outlet, for real-time monitoring the particle contaminant inside the photolithography machine and generating detection data;Data sending module is electrically connected with the particle detection device, for accepting the detection data and real-time transmission to external monitoring equipment;Real-time monitoring and data real-time transmission to photolithography machine internal environment particle contaminant are realized.This enables operator to promptly understand photolithography machine internal air quality condition, provides strong guarantee for the stable performance of photolithography process, improves the automation level and operating efficiency of entire photolithography machine.

This invention provides an ink mixing device for a packaging box printing machine, relating to the field of ink processing technology. The ink mixing device for the packaging box printing machine includes a mixing tank and a bottom tank; it also includes a drive motor, the output end of which is connected to a pressing mechanism and a reciprocating mechanism. The pressing end of the pressing mechanism is connected to a piston, which moves within a metering mechanism. An adjustment mechanism for metering is also provided on the outside of the metering mechanism. Inside the mixing tank, a stirring assembly and a scraper are provided for ink mixing. The stirring assembly and scraper are driven by the drive motor. The reciprocating end of the reciprocating mechanism is connected to a scraper ring for scraping the inner wall of the mixing tank. This invention achieves coordinated operation of metered ink delivery, efficient mixing, and automatic tank wall cleaning by simultaneously driving the pressing mechanism, stirring assembly, and reciprocating mechanism with a single drive motor, effectively reducing equipment energy consumption and structural complexity.

The invention provides a multifunctional roundness measuring instrument for a mute ball bearing, which relates to the field of measuring instruments, and comprises a workbench, and a rotating support is rotatably connected to the left side of the top end face of the workbench; the transmission chuck is rotationally connected to the upper side of the inner end of the rotary support. The two driving auxiliary frames are arranged on the outer side of the rotating support in a left-right alignment and sliding mode. The positioning auxiliary mechanism is arranged between the driving auxiliary frame and the transmission chuck; the movable optical shaft is slidably connected to the right side of the top end face of the workbench. The movable bracket is arranged outside the movable optical axis in a vertical sliding manner; the fine adjustment bracket is hinged to the outer side of the lower end of the movable bracket; the protection auxiliary mechanism is arranged between the fine adjustment support and the sliding support, automatic clamping and positioning of the bearing are achieved, the frequency and workload of repeated labor of operators are relieved, and the positioning efficiency and the measuring efficiency of the bearing are improved; the problems that the repeated labor frequency and workload of operators are increased, and the positioning efficiency and the measuring efficiency of the bearing are affected are solved.

The utility model discloses a particle steel hot press forming device which comprises a working table, a stand, a hydraulic cylinder and a guide hopper, the stand is connected to the top end of the working table, the hydraulic cylinder is arranged on the stand, a telescopic rod is vertically downward, and the bottom end of the hydraulic cylinder is connected with a pressing block. The rotating mechanism is used for driving the rotating disc to rotate, one pressing groove is filled with materials when passing through the lower portion of the material guiding pipe, the pressing groove is pressed when passing through the lower portion of the hydraulic cylinder, after rotation continues, when the pulley rolls on the protruding block, the pulley jacks the top plate upwards, the top plate pushes out pressed particle steel, and continuous circulation is achieved. The particle steel hot-pressing efficiency is improved, during material filling, the driving mechanism continuously drives the material guide pipe to rotate, the probability and frequency of blockage are greatly reduced through rotation of the material guide pipe, the requirement for shutdown cleaning is reduced, and the continuous operation time and reliability of equipment are improved.

The utility model discloses an automatic feeding device for a dyeing pool, which comprises a pool body, a fixing frame is arranged on one side of the pool body, a plurality of tank bodies are transversely arranged on the fixing frame, a collecting part is arranged below the tank bodies, a vibrator is arranged outside the collecting part, and an electromagnetic valve opening is arranged at the lower end of the collecting part. The automatic feeding device has the following advantages and effects that the problem that the powdery dye is easily clamped at the outlet can be reduced through the automatic feeding device, so that a large amount of powdery dye can be fed into the tank body at one time, the adding frequency is reduced, and the burden of workers is reduced. Meanwhile, errors caused by dye proportioning can be avoided, and the dyeing quality is guaranteed.

The invention belongs to the technical field of pest monitoring, early warning, prevention and control, and particularly relates to a pest trapping device convenient for dosing and pest collection, which comprises a box body, a cover plate, a rotary switching device and a trapping container, the cover plate is connected to the box body; a mounting inner cavity is formed in the box body; the box body is provided with an insect collecting pipeline and a trapping channel which are communicated with the mounting inner cavity; a dosing channel communicated with the inner cavity is arranged in the cover plate; the trapping container comprises a first container and a second container; the rotary switching device is connected to the interior of the box body and is connected with the first container and the second container; an insect collecting inner cavity is formed in the first container and / or the second container; an insect collecting pipeline is further arranged on the box body; and during insect collection operation, the insect collection pipeline is communicated with the insect collection inner cavity. According to the invention, excessive investment of manpower and material resources can be reduced, the problem of inconvenience in dosing and insect collection caused by a specific monitoring environment is solved, and the convenience and efficiency of trapping can be improved.

This invention provides an ultrafiltration membrane module resistant to high suspended solids impact, relating to the field of wastewater filtration technology. It includes a hollow cylinder and an ultrafiltration mechanism within it. The ultrafiltration mechanism includes a membrane filtration unit and an anti-shock component at its lower end. The anti-shock component includes a rotating lower sleeve with lower blades evenly distributed around its outer circumference, and a sludge removal component above it for scraping sludge from the cylinder wall. Below the fixed plate, there is also an mounting sleeve and a rotating upper sleeve, with upper blades evenly distributed around its outer circumference and connected to an upper scraper. During filtration, raw water impacts the lower blades at the inlet and enters the membrane filtration unit, driving the lower scraper to rotate and scrape sludge. Simultaneously, the rising water flow drives the upper scraper to clean the upper section of the cylinder wall. During backwashing, high-pressure purified water impacts the lower blades in the opposite direction, causing them to rotate and scrape sludge, which is then discharged from the sludge removal hole. This invention utilizes hydraulic self-drive to achieve online cleaning of the cylinder wall, effectively buffering the impact of high suspended solids, protecting the membrane surface, and extending its service life.

The application discloses an intelligent dust removal device for waste gas treatment of a coal-fired power plant, and relates to the technical field of waste gas treatment.The device comprises a dust removal box, an air inlet fixedly connected to the side wall of the dust removal box, a filter plate fixedly connected to the inside of the dust removal box, and a filter effect real-time detection mechanism and a dust cleaning and collecting mechanism.The device can reduce unnecessary troubleshooting and maintenance frequency, thereby reducing maintenance cost and time cost, and can maintain or replace the clogged or damaged filter plate in time when the filter plate is damaged, so that the continuous and efficient operation of the spray dust removal system can be ensured, and the overall operation efficiency is improved.Further, the device can avoid long-time use of the filter plate without timely maintenance or replacement, so that impurities and particulate matter can be prevented from entering the spray dust removal system, the cleanliness of water resources is ensured, and the overall performance of the spray dust removal system is improved.

The present invention relates to the field of oncolytic viruses, in particular to a recombinant rhabdovirus, such as a vesicular stomatitis virus, encoding a gasdermin in its genome. The present invention further relates to the use of the recombinant virus in the treatment of cancer and to methods of producing such viruses.

This utility model belongs to the field of concrete construction equipment, specifically relating to a concrete trowel. It includes a frame located above a segment mold. Linear guide rails are mounted on both sides of the frame, with a linear motor and a sliding cover mounted on each rail. Mounting beams are mounted on the linear motors and sliding covers, and a cylinder is mounted above the mounting beams. A slider is mounted on the output end of the cylinder and is mounted on the mounting beams. A connecting rod is connected to the slider, and a trowel plate is hinged to the other end of the connecting rod. A cleaning component is provided on one side of the segment mold, including a cleaning groove with guide edges on both sides. The trowel plate is mounted on the guide edges. A lead screw is installed inside the cleaning groove, and a drive motor is located outside the cleaning groove. The output shaft of the drive motor is connected to the lead screw, and a cleaning block with scraping grooves is mounted on the lead screw. The purpose of this utility model is to provide a concrete trowel that solves the problem of residual concrete on the trowel plate after use, which affects the subsequent troweling effect.

The utility model discloses a snap ring punch for a combined die casting machine, which comprises a supporting seat, a plurality of snap rings are sleeved on the outer wall of the supporting seat, through grooves are arranged at four corners of the outer wall of the supporting seat, limit grooves are arranged among the through grooves, limit blocks are slidably connected in the limit grooves, built-in jacking pipes are fixed on the inner sides of the limit blocks, and the built-in jacking pipes are fixed on the outer wall of the supporting seat. A square penetrating groove is formed in the position, corresponding to the through groove formed in the supporting base, of the built-in jacking pipe, a fixing clamping block is slidably connected into the through groove of the supporting base, a pushing block is fixed to the inner side of the fixing clamping block, and a driving piece is arranged at the top end of the supporting base. When the snap ring is installed, the built-in jacking pipe can move upwards through thread meshing of the round rod and the built-in jacking pipe only by horizontally placing the supporting base, sleeving the snap ring and rotating the connecting base, then the fixed clamping block is driven to be inserted into the clamping groove of the snap ring, rapid assembly is completed, and compared with a traditional snap ring installation mode, the assembling steps are remarkably reduced, and the operation time is remarkably shortened.

The invention relates to the technical field of water treatment, discloses an intelligent flocculant adding method and system based on water quality dynamic data, and aims to solve the technical problems that an existing adding mode is extensive, lagged in control and difficult to adapt to dynamic water quality fluctuation. The method comprises the following steps: collecting turbidity and flow data of a water inlet end; carrying out feedforward prediction by utilizing a long-short-term memory network model, calculating a theoretical dosage and driving a metering pump to execute; and the effluent turbidity is monitored in real time, and feedback correction is performed by using a PID algorithm. The system comprises an online monitoring unit, an intelligent control unit, a precise adding execution unit and an effect feedback unit. Through composite control of feedforward prediction and feedback correction, advanced and accurate addition of the flocculant is realized, the drug consumption cost is reduced, the impact load is effectively dealt with, and the stability of the effluent quality and the intelligentization of system operation and maintenance are ensured.

The utility model provides a built-in counter weight aerator which comprises an air chamber, a supporting aeration pipe and a built-in counter weight pipe, the two ends of the supporting aeration pipe are respectively communicated with the air chamber, the two ends of the air chamber are sealed through end cover plugs, the built-in counter weight pipe is arranged in the air chamber through the end cover plugs, and the built-in counter weight pipe is arranged in the air chamber. The diameter of the built-in counter weight pipe is smaller than that of the inner wall of the air chamber, an air inlet channel is formed between the built-in counter weight pipe and the inner wall of the periphery of the air chamber, the two ends of the supporting aeration pipe are communicated with the air inlet channels of the air chambers at the two ends respectively, a counter weight mounting sleeve is arranged on the side, located in the air chamber, of the end cover plug, and the axis of the counter weight mounting sleeve coincides with the axis of the air chamber. The two ends of the built-in counterweight pipe are arranged in the air chamber through counterweight mounting sleeves respectively. According to the technical scheme of the utility model, the structure is simple, the counterweight effect is good, the occupied area and the volume of the aerator cannot be increased due to the built-in counterweight, the arrangement density of the aerator cannot be influenced, the use and maintenance cost is low, and the aerator is suitable for popularization and application in aeration devices.

A method for assembling a hair cutting appliance is presented. The body is provided with a power switch connected to a power source. A drive system within the body is in selective electrical communication with the power source. The cutting unit is electrically connected to the drive system. An optical sensor is mounted to the body to sense a predefined skin-hair edge. A control circuit within the body is electrically connected to the optical sensor. The switch element is electrically connected with the control unit. The switching element is switchable between a conductive state and a non-conductive state by the control circuit. The switching element is switched to a non-conductive state when the sensing condition of the optical sensor exceeds a first pre-programmed threshold. A first pre-programmed threshold is stored in the control circuit. A method for assembling a power conversion module for use with a hair cutting appliance is provided.

This utility model provides an automatic sawing device for automotive castings, belonging to the field of casting riser sawing devices. It includes a machine room with a material drop chute at the bottom, within which a conveyor is installed; and a sawing assembly located on the inner rear side of the machine room. This utility model, through its separation shell, separation plate, and drive assembly, can collect falling structural parts and flowing cooling water during the sawing process of automotive castings. The cooling water is then discharged through a water trough on the separation plate and collected in a water collection tank through separation holes. After water separation, the structural parts fall after the separation plate is removed, enter the material drop chute, and are conveyed out of the machine room by the conveyor. This minimizes the problem of contaminating the conveyor when removing the sawn structure, improves the service life of the conveyor structure after long-term use, and reduces the frequency of conveyor belt cleaning.