44results about How to "High injection precision" patented technology

The invention discloses an electrolyte injection system with a vacuumizing function for a lithium battery. The electrolyte injection system comprises a feeding unit, a liquid injection unit, a vacuumizing unit, a sealing unit, a weighing and detecting unit and a discharging unit, wherein the liquid injection unit comprises an intermediate belt conveyor, a battery positioning mold, a lifting board, a first lifting cylinder, a quantitative liquid injector and the like; the weighing and detecting unit comprises a front weighing sensor, a rear weighing sensor, a waste conveyor and the like; the vacuumizing unit comprises a seal cover, a gas-type fitting, a vacuum sensor and a vacuum pump. The capacity of the inner chamber of a quantitative cylinder of the quantitative liquid injector is equal to the standard liquid injection amount of the lithium battery, so that the amount of an electrolyte pushed out by a liquid injection cylinder every time is equal to the standard liquid injection amount of the lithium battery, and the liquid injection precision is high; the vacuumizing unit can prevent a reaction between moisture in air in the seal cover and electrolyte solute lithium hexafluorophosphate to avoid generation of hydrofluoric acid, so that the problem that hydrofluoric acid adversely influences the electrochemical property and the safety performance of the battery is solved.

The invention discloses a battery liquid-filling device. The battery liquid-filling device is structurally characterized in that: an air extracting pump is sequentially and hermetically connected with an air suction pipe, a buffer bottle, an air extracting pipe, a liquid-filling pipe and a metering pump; the liquid-filling pipe is provided with an electromagnetic valve; the air extracting pipe is provided with an electromagnetic valve and a filter sheet; the neck of the buffer bottle is provided with a secondary filter sheet; and both the filter sheet and the secondary filter sheet are polytetrafluoroethylene or polypropylene porous filter sheets, the aperture is 2 to 60 microns, and the porosity is 70 to 85 percent. The device is simple in structure, convenient to operate and low in cost, is used for filling electrolyte for a lithium battery and a super capacitor, and can timely and fully discharge the gas in the battery so as to prevent the battery from swelling, shorten the liquid-filling time and improve the liquid-filling precision; and the device can be reused for a long term, and is economic and practical.

The invention discloses a high-precision plunger type trace sampling pump. Guide rails are horizontally arranged and are connected with the bottom end of a sliding bracket, so that the sliding bracket moves left and right on the guide rails; a plunger pump is arranged at the top end of the sliding bracket; a liquid inlet one-way valve and a liquid outlet one-way valve are respectively arranged in a liquid inlet and a liquid outlet of the plunger pump; one end of a plunger of the plunger pump is embedded inside the plunger pump; a separation-reunion plate is arranged at the other end of the plunger; a spring coaxially sleeves the plunger; two ends of the spring are respectively in contact with the separation-reunion plate and the plunger pump; a motor is fixedly placed; a cam is fixed on a driving shaft of the motor. The high-precision plunger type trace sampling pump disclosed by the invention has the advantages of simple structure, high sampling precision, adjustable trace, stable operation and low cost; the high-precision plunger type trace sampling pump is suitable for accurate sampling of an analysis instrument system and high-precision agent mixing, in particular for sampling detection of microbial culture solution.

The invention discloses a lithium battery electrolyte injection system with a self-checking function. The lithium battery electrolyte injection system comprises a feeding unit, a middle electrolyte injection unit, a middle sealing unit, a weighing detection unit and a discharging unit, wherein the middle electrolyte injection unit comprises a middle belt conveyer, a battery positioning mould, a lifting plate, a first lifting air cylinder and a quantified electrolyte injector; the weighing detection unit comprises a front weighing sensor, a rear weighing sensor and a waste conveyer; and each of the feeding unit and the discharging unit comprises a belt conveyer, a straight sliding rail, a positioning air cylinder, a positioning block, a pickup air cylinder, a corner air cylinder and a vacuum chuck. According to the lithium battery electrolyte injection system, the inner cavity capacity of the quantified electrolyte injector is equal to a standard electrolyte injection amount of lithium batteries, so that the electrolyte amount pushed by an electrolyte injection air cylinder for each time is correctly equal to the standard electrolyte injection amount of lithium batteries, and the electrolyte injection precision is high; and the weighing detection unit can be used for detecting and monitoring the electrolyte injection quality, so that the unqualified products and fault problems of the electrolyte injector can be discovered in time and then the electrolyte injection quality is ensured.

The invention discloses a constant-temperature heating and liquid injection device of a lithium ion battery. The constant-temperature heating and liquid injection device comprises a first electrolyte heating tank, a second electrolyte heating tank, an electrolyte constant-temperature buffer tank, a liquid injection system and a lithium battery positioning fixture, wherein one end of the first electrolyte heating tank is connected with a first liquid inlet valve, the other end of the first electrolyte heating tank is connected with a liquid inlet in a side wall of the electrolyte constant-temperature buffer tank via a first electrolyte valve, and the bottom of the electrolyte constant-temperature buffer tank communicates with the liquid injection system via a third electrolyte valve. The invention also discloses a constant-temperature heating and liquid injection method of the lithium ion battery. With the adoption of the constant-temperature heating and liquid injection device for liquid injection of the lithium battery, the liquid injection accuracy and the stability of liquid injection quantity can be improved, the liquid injection quantity is free from the influence of an external environmental temperature, so that the liquid injection process capability is improved, and the production efficiency and the material utilization ratio are improved; and meanwhile, after an electrolyte is heated, the viscosity of the electrolyte can be reduced, the mobility and the infiltration performance of the electrolyte are improved, the liquid injection efficiency is improved, and the infiltration performance of the electrolyte is improved.

The invention belongs to the technical field of liquid chromatograph equipment, and in particular relates to an automatic sampler of a liquid chromatograph, and an automatic correction method of a sampling hole of the automatic sampler. According to the automatic sampler of the liquid chromatograph, a sealing ring seat mounting groove is formed in a sampling platform; a sealing ring seat is arranged in the sealing ring seat mounting groove; the sealing ring seat is provided with a sealing ring, and the sealing ring is fixed by a sealing ring cover; the sealing ring seat is provided with a sample tube hole; a through hole I is formed in the sealing ring cover, and a through hole II is formed in the sealing ring; a sample tube is arranged in the sample tube hole; the upper end of the sample tube is connected with the sealing ring seat, and the through hole II of the sealing ring is communicated with an inner hole of the sample tube; the sealing ring seat can be translated along the plane direction in the seal ring seat mounting groove, and drives the sealing ring and the sealing ring cover to move synchronously. The automatic sampler can enable a sampling needle to accurately enter the sampling hole and to be well sealed with the sealing ring in the sampling hole, so that the sampling accuracy of the sampler is improved, and the service life of the automatic sampler is greatly prolonged.

The invention discloses a liquid injection device and a liquid injection production line, the liquid injection device comprises a feeding part and a liquid injection part, the liquid injection part comprises a fixing plate and a liquid injection cup, the liquid injection cup is arranged on the fixing plate, the feeding part moves relative to the liquid injection part, and the feeding part conveys a battery to the position below the liquid injection cup and enables the battery to be communicated with the liquid injection cup; the electrolyte in the electrolyte injection cup is injected into the battery, and the electrolyte injection cup is kept fixed before and after electrolyte injection, so that the electrolyte injection quality can be improved, and the electrolyte injection precision is ensured; the liquid injection cup is provided with a liquid injection opening and a liquid injection pipeline, the liquid injection opening and the liquid injection pipeline are used for guiding the electrolyte, and the liquid injection pipeline can guide the electrolyte into the liquid injection cup. The liquid injection pipeline is provided with the liquid outlet, the liquid outlet is obliquely arranged, the electrolyte flows to the inner wall of the liquid injection cup from the liquid outlet, the electrolyte flows downwards along the inner wall of the liquid injection cup, the electrolyte can be prevented from directly falling to generate bubbles, and the liquid injection precision of the electrolyte is guaranteed.

The invention discloses a sample injection method and device for a digital micro-fluidic chip. The sample injection device of the digital micro-fluidic chip mainly comprises a sample injection pressure head (1) and a driving mechanism (6) for driving the sample injection pressure head to move. And the sample injection pressure head (1) is used for injecting a reagent pre-embedded in the chip (12) into the chip (12). And the driving mechanism (6) is used for controlling the sample injection pressure head (1) to move so as to realize automatic sample injection. The sample injection mode has the advantages of high sensitivity, high accuracy, high flux, high integration level and the like, cross contamination is avoided in the whole process reaction, one-key operation can be achieved, and the two hands of an operator are greatly liberated.

The invention discloses a micro-sampling tube. The micro-sampling tube comprises a main body part and a solution immersion part, wherein the main body part is a hollow column body, and the inner boundary of the cross section of the main body part is circular; the end face of the bottom end of the main body part is vertical to the longitudinal cross section of the solution immersion part; the thickness of the solution immersion part is less than or equal to the that of a tube wall of the main body part. The micro-sampling tube provided by the invention has the advantages that the sampling accuracy is high, and a wall hanging phenomenon of a solution is avoided, thus being especially suitable for dripping the solution in a way of semi-drop or non-whole drop. Furthermore, by adopting the micro-sampling tube, low manufacturing cost, simple technology and convenient operation are realized.

This is a cell needle and the injection device. The needle is of an inner cavum which is sealed in a vacuum needle and steel ball matching to the end of the needle. There is a concave part on the side wall of the cavum, and an electromagnet is installed to the position of the concave part.

The digital quantitative continuous injection pump includes a power source, a transmission system, an actuator, and a control system. The power source outputs rotary motion, and the transmission system changes the speed of the rotary motion output by the power source, and then converts it into linear motion, and then drives the actuator The liquid in the container is sucked into the device, and then discharged from the liquid outlet. The control system is used to control the entire device, realize stepless speed change by controlling the pulse frequency, realize quantitative liquid injection by controlling the number of pulses, and improve the liquid injection accuracy by introducing flow feedback , Overload protection is achieved by introducing a pressure switch. By adjusting the speed of the stepping motor to control the flow speed of the fluid, the working pressure of the system is above the air separation pressure and saturated vapor pressure of the liquid, preventing cavitation, and greatly improving the stability of the system and the use of the device. life.

The invention discloses a portable needle-free injector with accurate dosage, which is composed of a thruster, a medicine-drawing interface and a dosage medicine tube. The thruster is composed of an upper casing part, an adjusting part, an injection part, a lower casing part and a safety part. The medicine bottle storing the medicine liquid is inserted into the medicine pumping interface, and is locked by the medicine pumping interface; the front end of the dosage medicine tube is connected to the back end of the medicine pumping interface, and the adjusting handwheel in the adjusting part is turned to extract the medicine liquid, and store it in the dose Inside the drug tube. When injecting, open the safety part, release the injection part, push the push rod assembly in the adjustment part through the thrust spring of the injection part, and then push the core rod and piston in the dosage medicine tube to make the medicine liquid in the dosage medicine tube form a finer liquid The stream is ejected through the nozzle hole in the top of the dosing tube. The medicine liquid dose of the present invention is precise; the dose of the thruster is adjustable, and the gear adjustment is reliable; the medicine pumping interface has strong adaptability; the medicine liquid injection precision is high; the use is safe, reliable and easy to carry.

The invention discloses a high-precision plunger type trace sampling pump. Guide rails are horizontally arranged and are connected with the bottom end of a sliding bracket, so that the sliding bracket moves left and right on the guide rails; a plunger pump is arranged at the top end of the sliding bracket; a liquid inlet one-way valve and a liquid outlet one-way valve are respectively arranged in a liquid inlet and a liquid outlet of the plunger pump; one end of a plunger of the plunger pump is embedded inside the plunger pump; a separation-reunion plate is arranged at the other end of the plunger; a spring coaxially sleeves the plunger; two ends of the spring are respectively in contact with the separation-reunion plate and the plunger pump; a motor is fixedly placed; a cam is fixed on a driving shaft of the motor. The high-precision plunger type trace sampling pump disclosed by the invention has the advantages of simple structure, high sampling precision, adjustable trace, stable operation and low cost; the high-precision plunger type trace sampling pump is suitable for accurate sampling of an analysis instrument system and high-precision agent mixing, in particular for sampling detection of microbial culture solution.

The invention provides a blast furnace coal injection system. The blast furnace coal injection system comprises an injection tank, a distributor, an injection gun and a coal powder bin communicated through pipes, wherein a quantitative feeder is arranged at the bottom of the injection tank; a coal powder main pipe is arranged between an outlet of the quantitative feeder and the distributor and the injection gun, and is provided with a coal outlet valve and a coal conveying valve; and a pressure homogenizing pipe is arranged between the coal powder main pipe and the top of the injection tank. An air source main pipe is divided into three pipes of pressure stabilization, injection and air replenishment, which are respectively connected with the injection tank, the quantitative feeder and the coal powder main pipe. A control method of the blast furnace coal injection system is as follows: while one injection tank injects, the other injection tank performs preparations of pressure relief, quick relief, powder loading, pressurization and waiting; after the injection of the first injection tank is finished, the tank is replaced; and then, the second injection tank enters the preparation process for alternate circulation. The quantitative feeder is mounted at the bottom of the injection tank, so that the injection precision is improved, the tank replacement fluctuation time is shortened, and necessary conditions are provided for stabilization of blast furnace production.

The invention relates to a method for achieving online blending of multi-grade hydraulic oil through intelligent injection control. A solid agent lifting machine has a negative pressure suction function, and can suck a solid powder drug from a solid agent measuring tank to a hopper of configuring of the solid powder drug, the solid agent measuring tank has a self-weighing function, and weighs thesolid powder drug falling in a solid agent dispensing tank in real time and feeds back to a control cabinet, a first instantaneous delivery passing through a fluid flowmeter can be fed back to the control cabinet through the fluid flowmeter connected with a liquid agent discharging pump, the first instantaneous delivery passing through the fluid flowmeter can be fed back to the control cabinet through the fluid flowmeter, a second instantaneous delivery passing through a mother liquid dilution flowmeter can be fed back to the control cabinet through the mother liquid dilution flowmeter, the solid agent dispensing tank and a liquid agent dispensing tank can be correspondingly mixed and stirred through an aeration disc of a pulse wind stirrer, the type and proportion of preparation of additives needed to be added in different formula hydraulic oil are stored in the control cabinet, agent adding pumps of corresponding dispensing tanks are automatically controlled to be started, and automatic adjustment is conducted according to dispensing change of hydraulic oil blending amount.

The invention discloses a liquid injection cup device comprising a vacuum cup, a liquid guide structure and a liquid draining structure; the liquid guide structure is hermetically arranged at an inlet; the vacuum cup is provided with a cavity for holding liquid and the inlet and an outlet communicated with the cavity; the liquid guide structure is movably arranged, a motion path of the liquid guide structure is at least provided with a communication position used for being communicated with the cavity via the inlet and a separation position used for exiting the inlet to be separated from the cavity; the liquid draining structure is hermetically arranged at the outlet, and used for draining the liquid in the cavity to a battery. The liquid injection cup device provided by the invention is good in sealing effect and high in reliability and liquid injection accuracy, and effectively solves the problem that the cost is high due to the fact that the rubber sealing ring needs to be changed periodically.

The invention discloses a lithium battery electrolyte injection system with a self-checking function. The lithium battery electrolyte injection system comprises a feeding unit, a middle electrolyte injection unit, a middle sealing unit, a weighing detection unit and a discharging unit, wherein the middle electrolyte injection unit comprises a middle belt conveyer, a battery positioning mould, a lifting plate, a first lifting air cylinder and a quantified electrolyte injector; the weighing detection unit comprises a front weighing sensor, a rear weighing sensor and a waste conveyer; and each of the feeding unit and the discharging unit comprises a belt conveyer, a straight sliding rail, a positioning air cylinder, a positioning block, a pickup air cylinder, a corner air cylinder and a vacuum chuck. According to the lithium battery electrolyte injection system, the inner cavity capacity of the quantified electrolyte injector is equal to a standard electrolyte injection amount of lithium batteries, so that the electrolyte amount pushed by an electrolyte injection air cylinder for each time is correctly equal to the standard electrolyte injection amount of lithium batteries, and the electrolyte injection precision is high; and the weighing detection unit can be used for detecting and monitoring the electrolyte injection quality, so that the unqualified products and fault problems of the electrolyte injector can be discovered in time and then the electrolyte injection quality is ensured.