32results about How to "Realize automatic and precise control" patented technology

The invention discloses a ball screw pair pre-tightening force measurement and control system and method with a self-sensing function. The system comprises a pre-tightening device and a measurement and control device, a giant magnetostrictive material is used as the core, the functions of an actuator and a sensor are realized by using the normal inverse effect of the material, a permanent magnet provides a bias magnetic field for a giant magnetostrictive bar, one coil is used as an exciting coil for providing a driving magnetic field for the giant magnetostrictive actuator of the measurement and control device, the magnitude of pre-tightening force output by the actuator is controlled by changing the current of the exciting coil, and the other coil is used as a pick-up coil for realizing the self-sensing function of ball screw pair pre-tightening force by acquiring a magnetic field change caused by a pre-tightening force change. The system and the method can realize self-sensing of the ball screw pair pre-tightening force and automatic and accurate control of the pre-tightening force, and improve the transmission precision of the ball screw pair, so that the running precision and the machining quality of a numerically-controlled machine tool are guaranteed.

The invention relates to a double-stability automatic water injection control mechanism which keeps a water level control valve at a double-stability state and belongs the field of automatic control devices. The mechanism comprises swing blocks, a support, a connecting plate, a vertical rod, a floater, a rocker, a controller, a large counter balance and a small counter balance. The swing blocks are hinged on the support, and are respectively arranged on both sides of a hinge point when water is injected and stopped; the rocker is hinged on the support; the floater is fixedly arranged on the vertical rod; the vertical rod is hinged with the swing blocks; both ends of the connecting plate are respectively hinged with the swing blocks and the rocker; the upper end of the controller is hinged with the rocker; the floater is fixed arranged on the vertical rod; the vertical rod and the swing blocks are hinged together; both ends of the connecting plate are respectively hinged with the swing blocks and the rocker; and the upper end of the controller is hinged with the rocker. When the water is injected or stopped, the controller of the double-stability automatic water injection control mechanism always keeps a stable state.

The invention relates to a lightweight aggregate cement concrete mixing device. The lightweight aggregate cement concrete mixing device comprises a cement charging mechanism, a cement slurrying mechanism and a lightweight aggregate mixing mechanism which are sequentially connected, and the stirring speeds of the cement slurrying mechanism and the lightweight aggregate mixing mechanism are gradually reduced. The lightweight aggregate cement concrete mixing device further comprises a concrete continuous mixing mechanism connected with the lightweight aggregate mixing mechanism. The mixing speed of the concrete continuous mixing mechanism is lower than that of the lightweight aggregate mixing mechanism. The lightweight aggregate cement concrete mixing device overcomes the defects that a single type stirring machine is adopted in existing lightweight aggregate cement concrete mixing equipment, and consequently cement caking, lightweight aggregate crushing and uneven cement mixing are likely to be caused, and the lightweight aggregate cement concrete mixing device has the beneficial effects that the cement is not caked, the lightweight aggregate is not crushed, and the lightweight aggregate and the cement are evenly mixed.

The invention discloses an automatic drying system of electro-porcelain blank. An artificial operation way is changed to automatic control, firstly a temperature and humidity control gate is improved,a performer is additionally arranged on the temperature and humidity control gate, so that the rotation speed can be controlled to be accurate to 0.5 degree/Min for switch motion, and then the performer is connected to a corresponding temperature and humidity detection device; a testing part of the temperature and humidity detection device is in a drying room, and a display part is focused on a control room. In this way, so long as the drying curve is followed and a program is input before drying, the automatic drying can be conducted. The automatic drying system of electro-porcelain blank can realize automatic and accurate control, and the influence of human factors on the product quality is reduced.

The invention relates to a rolled steel macrostructure hot acid etching device, which comprises an acid etching device (1) formed by a tank body (11) and a tank cover (12), and an electromagnetic induction heating device (2), wherein the electromagnetic induction heating device comprises an induction plate (21) and a heating plate (22); the tank body (11) is arranged on the induction plate (21); the heating plate (22) is located on the bottom part of the inner cavity of the tank body (11). The rolled steel macrostructure hot acid etching device provided by the invention adopts an electromagnetic induction heating method, so that the heat efficiency is high, the safety and reliability in use are realized, the acid etching temperature and the acid etching time can be accurately controlled, the accuracy of a rolled steel sample macrostructure test result is ensured, the production cost can be effectively reduced, and the environment pollution is reduced.

The invention discloses a microvibration loading device for bone formation related cells. According to the device, the excitation end of an electromagnetic vibration exciter is in threaded connection with the bottom of a vibration cavity, and a microvibration box in which the bone formation related cells are accommodated is arranged in the vibration cavity; the cavity cover of the vibration cavity is positioned on the vibration cavity through a side positioning screw; the electromagnetic vibration exciter is electrically connected with an excitation control device; according to the excitation device, a singlechip controls a sine wave signal generator, and a power amplifier drives the electromagnetic vibration exciter; and control parameters are input and displayed by a display and input circuit. The device can perform microvibration loading on the bone formation related cells, stimulate the microvibration environment of the bone formation related cells to analyze the influence of microvibration on the proliferation activity and the functional state of the bone formation related cells of an interface, provides accurate and reliable experimental basis for design, manufacturing and implanting of an implant, ensures that the implant can be combined with the bone interface well, and improves the effects of treating and repairing the bone interface.

The invention discloses a novel spraying and flavoring device for non-fried instant noodles. The novel spraying and flavoring device comprises an enclosure, a pressurizer, an automatic controller and a favoring chamber, wherein the automatic controller is arranged at one side of the enclosure; the pressurizer is arranged at the top part of one side of the enclosure; a ventilation window is arranged at one side of the pressurizer; a seasoning mixing box is arranged below the pressurizer; the flavoring chamber is arranged inside the enclosure; sterilizing lams are arranged at the top part inside the flavoring chamber; a conveyor is arranged at the top part inside the flavoring chamber; a turning wheel is arranged below the conveyor; a lifting frame is arranged on the turning wheel; seasoning spray pipes are arranged at two sides inside the flavoring chamber; a filter screen is arranged below inside the flavoring chamber; a water mist collector is arranged below the flavoring chamber. The novel spraying and flavoring device disclosed by the invention has the beneficial effects that automatic and accurate control over flavoring of the non-fried instant noodles can be realized; in addition, by means of the automatic controller, the injecting concentration of seasonings can be automatically adjusted and the mouthfeel of the instant noodles is adjusted.

The invention provides an automatic quantitative blood collection device and relates to the technical field of medical instruments. The automatic quantitative blood collection device comprises a pedestal and a support arm fixed on the pedestal. The support arm is provided with a plurality of syringe needle fixing bases, blood collection tube fixing clamps and a tube flow control device, wherein the blood collection tube fixing clamps are corresponding to the syringe needle fixing bases in a one-to-one manner, and the syringe needle fixing bases and the blood collection tube fixing clamps are arranged on the support arm in a spaced manner horizontally. The automatic quantitative blood collection device also comprises an automatic control system which can control the blood collection quantities of blood collection tubes in real time. The automatic control system communicates with the tube flow control device. The syringe needle fixing bases and the blood collection tube fixing clamps can clamp and fix a plurality of blood collection syringe needles and blood collection tubes at the same time, so that the blood collection tubes can collect blood simultaneously and the blood collection efficiency is increased; the automatic control system can control the tube flow control devices, so that the blood collection quantities can be automatically and accurately controlled and the accuracy of the blood collection quantities is greatly improved; blood collection requires no manual intervention, so that the labor intensity of people is reduced and the blood collection efficiency is further increased.

The invention discloses a probe ageing test device and method for three-electrode conductivity sensors. The probe ageing test device comprises a control box, a sea water tank and a fresh water tank, wherein a plurality of probes are connected in series through a pipeline and form an ageing test pipeline; a suction pump is arranged at an entrance of the ageing test pipeline, and normally closed electric valves are arranged at all branches of the entrance; an exit is divided into two exit branches, and normally closed electric valves are arranged at both branches of the exit; the control box is connected with and controls the suction pump and the normally closed electric valves, and is further provided with a probe connecting line to be connected with the to-be-aged probes. Through automatic and precise control of a conductivity sensor probe ageing test process, multiple conductivity probes are subjected to an ageing test simultaneously, the labor cost of the ageing test is reduced, and the consistency of the ageing test is improved.

The invention relates to the technical field of chemical reactors, and discloses a reaction kettle temperature control system. The reaction kettle temperature control system comprises a reaction kettle, a heat exchanger, a steam inlet pipe connected with a gas inlet of the heat exchanger, a first steam return pipe connected with a gas outlet of the heat exchanger, a heat preservation water tank, a temperature control system, and a steam electromagnetic valve, a first three-way reversing electromagnetic valve, a second three-way reversing electromagnetic valve, a first water pump, a second water pump, a first temperature transmitter and a second temperature transmitter connected with the temperature control system; the steam electromagnetic valve is arranged on the steam inlet pipe, the first temperature transmitter is arranged inside the heat preservation water tank, the second temperature transmitter is arranged inside the reaction kettle, a water inlet of the heat exchanger is connected with a cold water outlet of the heat preservation water tank through the first water pump, and the second water pump is located between the heat preservation water tank and the second three-way reversing valve. The temperature of the reaction kettle can be automatically and accurately controlled, the product quality is ensured, and the production efficiency is improved.

The invention provides a fully-automatic metering bacterium-adding system for fertilizer particles, and relates to the field of bacterium adding systems of fertilizer production. The fully-automatic metering bacterium-adding system comprises a bacterial powder supply system, a fertilizer particle supply system, an organic matter supply system and a powder applying cylinder; the bacterial powder supply system comprises an upper hopper, a lower hopper and a bacterial powder conveying pipe which are sequentially connected up and down, and the bacterial powder conveying pipe is provided with an electromagnetic oscillator; the fertilizer particle supply system comprises a fertilizer conveying belt, a fertilizer storage hopper, a conveying motor and a screw conveyor which are sequentially connected up and down; and the organic matter supply system includes a humic acid conveyor belt, a stevia rebaudiana powder conveyor belt, a water pipe, an organic matter storage hopper, a powder metering pump and an organic matter conveyor belt which are sequentially connected up and down. The fully-automatic metering bacterium-adding system provided by the invention has a high automation degree and accurate measurement and realizes uniform metering and adding of bacterial powder; and the number of strains for a single fertilizer particle is consistent, a survival rate of the strains is greatly improved, and needs of automated production of bacterial fertilizers can be met.

The invention provides an artificial intelligence proportional control gas stove. The artificial intelligence proportional control gas stove comprises a shell, a user operation panel, an intake pipe,a combustor, a gas pipe, a temperature sensing probe and a pulse ignition needle; and inner and outer fire rings are arranged in the combustor. The artificial intelligence proportional control gas stove is characterized in that flow control valves are arranged at intake ends of the inner and outer fire rings; the flow control valves are connected and controlled by a central controller; and the central controller is connected with a user operation panel control circuit and a power supply circuit. The artificial intelligence proportional control gas stove can realize automatic and precise firepower control, realizes programming control, and is safe, energy-saved and excellent in popularization value.

The invention provides an auxiliary device for thrombectomy of cerebrovascular diseases, and relates to an auxiliary device for thrombectomy of cerebrovascular diseases. The auxiliary device further comprises a supporting module used for supporting and fixing the head of the patient, an irradiation module used for conducting lamplight irradiation on the surgical wound area of the patient, and a positioning module used for conducting image analysis on the target wound area of the patient and obtaining the irradiation direction of the irradiation module on the wound. And the rotating module is used for further driving the irradiation module to move based on the positioning module so as to perform directional irradiation on the target wound. According to the invention, the irradiation direction and the irradiation range of the irradiation module are further controlled and adjusted by identifying the position and the size of the surgical wound of a patient, so that the convenience of light adjustment in the surgical process is effectively improved; meanwhile, the head of the patient is adjustably fixed through the supporting module, so that long-time extrusion damage to head tissue cells in the same area of the patient is reduced.