39results about How to "Realize automatic injection" patented technology

The invention discloses an automatic injector. The automatic injector comprises a shell, a needle protecting cover, a push rod, a sounding cylinder, an inner tube, a release ring, a driving elastic piece and a reset elastic piece. When the automatic injector is used, a needle syringe is fixed in the shell; a needle head extends out of the front end of the shell; the needle protecting cover is telescopically connected with the shell; the needle protecting cover can push the release ring to slide towards the rear end of the shell; after the release ring moves to the rear end, a first clip of theinner tube releases snap-in limitation on the push rod; and the push rod pushes a piston under the action of the driving elastic piece to inject liquid in the needle syringe to a part, which needs tobe injected, of a body, thus realizing the goal of automatic injection. After injection is finished, the sounding cylinder is separated from limiting of the inner tube and slides towards the rear endof the shell so as to send out a signal that injection is finished. According to the automatic injector provided by the scheme, the automatic injection function of a pre-filled needle syringe can beachieved by eight parts, and compared with the prior art, the automatic injector is simple in structure, small in number of parts, simple in mechanism action principle and high in reliability.

The invention discloses a fuzzy control used for ash cleaning of a deduster and a system. The fuzzy control method comprises steps of receiving a detection input transmitted by the detection device, calculating the deviation between detection input and a given value and a deviation changing rate as an input variable of the fuzzy control, fuzzifying the input variable into a fuzzy input, performing fuzzy inference and decision based on the fuzzy input in order to obtain fuzzy output and defuzzifying the fuzzy output as control output, and outputting the control output to a deduster pulse valve controller in order to control the switch of the pulse valve of the deduster, wherein the detection input comprises pressure difference of the outlet and inlet of the deduster and inlet and outlet pressure difference of various chambers of the deduster; and the control output is the dust cleaning time of various chambers of the deduster. The above method and the system adopt the fuzzy control strategy to realize the dedusting control of various chambers of the deduster, and can solve the dust cleaning problem under the condition that the filtering loads of the filtering bags of various chambers are not uniform.

The invention discloses a continuous and automatic injection device used for loach hormone injection. The continuous and automatic injection device comprises a rack, as well as a positioning mechanism, a clamping mechanism, a loach releasing mechanism, an injecting mechanism, a photoelectric sensor, a water tank and a PLC which are mounted on the rack, wherein the positioning mechanism is a channel which is slantwise arranged and is used for a loach to slide down, the lower part of the channel is introduced into the water tank, the loach releasing mechanism is used for controlling the opening and closing of the channel, and the clamping mechanism is used for fixing the loach so that the injecting mechanism carries out injection on the loach. According to the continuous and automatic injection device, an air cylinder is combined with a syringe, so that the guide, the automatic clamping and the automatic injection are realized on the loach; the continuous and automatic injection device is simple in structure, high in degree of automation, precise to operate, and strong in reliability, and the automatic injection efficiency for the loach is effectively improved; the continuous and automatic injection device can carry out automatic and continuous hormone injection on the loach.

The invention provides a liquid spraying device of a digital printing machine and a control method of the liquid spraying device. According to the liquid spraying device of the digital printing machine and the control method of the liquid spraying device, a power mechanism is controlled to deliver compressed air into a liquid storage tank to press treating fluid in the liquid storage tank into a main pipeline, and then the treating fluid enters all branch pipelines, so that when first solenoid valves mounted at the outlet ends of all the branch pipelines are opened, the treating fluid is sprayed from nozzles mounted at the outlet ends of the first solenoid valves to the surface of a printing medium on a platform located below the nozzles. In this way, the treating fluid is automatically sprayed to the surface of the printing medium, it is guaranteed that the treating fluid sprayed onto the printing medium is uniform, time and labor are saved, and the treating fluid spraying efficiency is greatly improved.

The invention discloses an autologous liposuction, purification, precise injection and safety monitoring system comprising an injection gun and an infrared imaging mechanism. The injection gun comprises a syringe and a driving mechanism for driving the syringe to perform suction or injection, and the syringe is connected to a syringe needle. The infrared imaging mechanism includes an infrared thermal imaging camera, and the infrared thermal imaging camera focuses on the portion of the syringe for suction or injection and is used for collecting subcutaneous tissue distribution information acquired by the infrared thermal imaging camera. The system can automatically perform autologous liposuction, and sucked fat is purified and then undergoes injection; when the autologous liposuction and injection are performed, the infrared imaging mechanism is adopted to observe the subcutaneous tissue distribution information, and the liposuction and injection accuracy and security are improved.

The invention discloses a liquid injection device which comprises a liquid injection head, a lower cavity, an upper cavity, a valve guide rod, a liquid feeding sealing rod, a high-pressure cavity anda battery clamp, wherein the high-pressure cavity is sealed with the battery clamp; the liquid injection head is mounted on the high-pressure cavity and is in elastic sealing communication with a battery liquid injection hole in a liquid injected battery; the lower cavity is communicated with a vacuum pipeline and is in sealing communication with the liquid injection head; electrolyte is stored inthe upper cavity. The liquid injection device has the advantages of being simple in structure, convenient to operate, low in implementation cost, high in liquid injection efficiency, good in batteryliquid injection quality, small in environment pollution, and the like that the prior art does not have.

Through outlet pipe with throttle, each gas tank is connected to jet orifice of smoke plume. Jet orifices of smoke plume of multiple gas tanks are arranged on vertical plane in sequence from top to low in same jetting direction. Through cut off valve, gas tank is connected to generation system of smoke plume in white color. Through adjustable valve of compressed air, each gas tank is connected to system of compressed air. Each gas tank is connected to color injection system. Electric throttle, electric cut off valve, and electric adjustable valve of compressed air are connected to intelligent control system electrically. The color injection system includes environment protective color smoke agent on base of gas tank, and connected color generation controller, which is connected to intelligent control system electrically. The invention discloses device of displaying environment protective vivid striking flow pattern of flow field in clear level of structure for wind tunnel test.

The invention provides a syringe injection device special for animal husbandry and a use method of the syringe injection device. The syringe injection device comprises a plurality of long strip-shapedfirst viscose cloths fixedly connected to an inner side of a head end of an elastic collar, wherein a second viscose cloth is fixedly connected to an outer side of a tail end of the elastic collar; asyringe fixing frame housing with an opened upper end is fixedly connected to the upper end outside the elastic collar; a positioning plate is fixedly connected to the interior of the syringe fixingframe housing; a semicircular groove for placing a syringe is formed in the positioning plate; an outer convex edge of a lower end of a syringe barrel is clamped on the semicircular groove of the positioning plate; a fixing sleeve with a semicircular clamping groove is hinged to the outer side of the syringe fixing frame housing; the semicircular clamping groove can be clamped on a cylinder outside the syringe. The syringe injection device provided by the invention performs intravenous injection in a manner of combining a scalp needle with the syringe fixed on a neck of a livestock, thereby avoiding a disadvantage that the livestock does not cooperate during injection of a conventional syringe, and the injection is performed many times to waste liquor; and the syringe injection device is efficient and easy to use.

The invention discloses an anesthesia depth monitoring device for anaesthesia department. The device structurally comprises a monitoring machine, display panels, pushing frames, a monitoring tube, clamping structures and needle tubes; the display panels are arranged on the front side of the monitoring machine and are electrically connected; the pushing frames are arranged in the front side of themonitoring machine and is embedded inside the monitoring machine; the left end of the monitoring tube is embedded inside the monitoring machine; the clamping structures are vertically arranged on thefront side of the monitoring machine and are mechanically connected; the needle tubes are respectively embedded in the clamping structures and are movably connected; each clamping structure comprisesa fixing plate, an embedded fixing structure, the outer side limiting structure, a limiting plate and a movable structure, wherein the embedded fixing structure is embedded inside the fixing plate, and the outer side limiting structure is embedded inside the limiting plate and is movably connected. According to the invention, the clamping structures are respectively arranged outside the needle tubes, a space between the needle tubes and the monitoring machine is reduced by the pushing springs, and loosening is prevented, so that the needle tubes are better fixed, and automatic injection of needle tubes with different pipe diameters is realized.

The invention discloses a new automatic spraying system for a solid reducing agent. The system is provided with a feeding unit, a fluidized boosting unit, a fluidized hybrid adjusting unit, a feedback adjustment spraying unit, an LV automatic compensation unit, a supporting and weighing unit, a pneumatic control station and a PLC process control unit, wherein the reducing agent enters the fluidized boosting unit through the feeding unit by means of the dead weight and forms initial gas-solid two-phase flow in the fluidized hybrid adjusting unit after being boosted to flow out; the feedback adjustment spraying unit adjusts the proportion of the initial two-phase flow to meet the requirements of the reducing technology; the LV automatic compensation unit detects and rapidly responds to the gas-solid two-phase flow to ensure no recharging of liquid copper; the pneumatic control station distributes compressed air, nitrogen gas and oxygen required by the process and a meter gas source required for controlling each unit to each point; and the PLC process control unit programs, processes the switching value and the analog quantity, sends a control signal and gives an instruction to the feeding unit to ensure that the feeding unit is in a normal operating state. The automatic spraying system can realize automatic spraying of the solid reducing material and ensure uniform and controllable material supply.

The invention discloses a ceiling built-in perfluoro(2-methyl-3-pentanone) fire extinguishing system which comprises a bracket and a fire extinguishing assembly. The fire extinguishing assembly is installed on the bracket. The bracket includes a top plate, a bottom plate and a connecting column. The top plate is connected to the bottom plate through the connecting column. Expansion bolts are arranged at four corners of the top plate, the connecting column is connected with the top plate and the bottom plate through bolts, and the bottom plate is provided with an opening. The fire extinguishingassembly includes a storage box, a smoke detection device, a controller, a spray head, a first mixing chamber and a second mixing chamber. The system is used to be installed on a ceiling, the installation and use process is more convenient, and meanwhile, the system has the advantage of good fire extinguishing effect. In addition, the invention further provides a fire extinguishing method. The purpose of extinguishing fire rapidly can be achieved.

The invention belongs to the field of newborn piglet nursing, particularly relates to a portable tooth grinding, tail cutting and iron supplementing all-in-one machine for newborn piglets, and provides the following scheme aiming at the problems of complicated operation and low efficiency of piglet nursing. The machine comprises a fixing assembly, wherein an injection assembly is arranged at one end of the fixing assembly; a tail breaking assembly is arranged at the other end of the fixing assembly; the fixing assembly comprises a bottom supporting plate with a U-shaped structure; supporting frames are fixedly connected to the bottoms of two ends of the bottom supporting plate; a fixed clamping plate is fixedly connected to the top of one end of the bottom supporting plate; and a movable clamping plate is hinged to the top of the other end of the bottom supporting plate. The machine realizes integrated operation of tooth grinding, iron supplementing and tail cutting of the piglets, caneffectively fix the piglets, is convenient for nursing the piglets, can open the mouth of the piglets during tooth grinding, is convenient for personnel to operate, realizes the functions of automatic injection and needle head changing of iron supplementing, realizes automatic tail cutting operation, improves the efficiency of piglet nursing, and saves labor.

The invention relates to an automatic nozzle for spraying concrete in a tunnel and a construction method thereof. The automatic nozzle comprises a fixing device which is provided with a rotating mechanism and a rotating driving mechanism. The rotating mechanism is provided with a nozzle body and a grouting opening. A circulation pipeline is arranged between the nozzle body and the grouting opening. The rotating driving mechanism drives the rotating mechanism to drive the nozzle body to rotate within the set range of the vertical plane. The fixing device is provided with a traction mechanism, and the bottom end of the fixing device is provided with pulleys. A trolley is provided with sliding rails matched with the pulleys.

The invention relates to a battery liquid injection system including: a loading mechanical arm, an unloading mechanical arm, a pallet transporter, an injection machine, and a transporting mechanism. The injection machine includes a driving apparatus, a rotary disc and an injector pump. The driving apparatus drives the rotary disc to rotate, wherein a plurality of mounting positions are arranged onthe periphery of the rotary disc and used for placing pallets. When a pallet is fully loaded with batteries by the loading mechanical arm, the pallet transporter transports the pallet to preset positions; then, the transporting mechanism places the pallet on one mounting position of the injector machine, so that the rotary disc can drive the pallet to rotate to a position corresponding to the injector pump, and the injector pump injects the battery with electrolyte by preset amount; after all batteries are injected with the electrolyte, the transporting mechanism moves the pallet back to thepallet transporter, and the unloading mechanical arm moves out the batteries in the pallet. The battery liquid injection system achieves automatic injection of the electrolyte instead of conventionalmanual work mode, so that damage to human body due to the electrolyte is prevented.

The invention relates to a chain wheel lubricating device and method of a chain scraper conveyor, the chain scraper conveyor and tobacco storage equipment. The chain wheel lubricating device comprisesa detection device, an oil supply device, an air supply device and a nozzle, the detection device is configured to detect whether a chain wheel to be lubricated reaches a preset position or not; theoil supply device comprises an oil supply pipeline and a first adjusting valve arranged on the oil supply pipeline, the oil supply pipeline is configured to convey lubricating oil, the first adjustingvalve is in signal connection with the detection device so as to adjust the flow of the oil supply pipeline according to a detection signal of the detection device, the air supply device comprises anair supply pipeline and a second adjusting valve arranged on the air supply pipeline, the air supply pipeline is configured to convey compressed gas, the second adjusting valve is in signal connection with the detection device so as to adjust the flow of the air supply pipeline according to a detection signal of the detection device, the nozzle is arranged on the downstream of the detection device and communicates with the oil supply pipeline and the air supply pipeline, and the nozzle is configured to atomize the lubricating oil liquid to form oil mist and spray the oil mist to the chain wheel.

The invention discloses a tool rotating incremental forming device for a magnesium alloy sheet. The tool rotating incremental forming device for the magnesium alloy sheet comprises a rack and a forming tool head. The tool rotating incremental forming device for the magnesium alloy sheet is characterized in that the rack is further provided with a lubricating oil injecting device, and the lubricating oil injecting device is connected with a controller in an external mode; during the incremental forming process, and under the control of the controller, the lubricating oil injecting device injects lubricating oil to the periphery of the working end which surrounds the forming tool head, and a bubble-like oil film is formed on a magnesium alloy sheet blank. The tool rotating incremental forming device further controls the lubricating oil to reasonably mix and blend with air, and according to the temperature rising condition of a forming region, automatic control is automatically carried out on a lubricating oil injection time, an injection volume and a rate. The tool rotating incremental forming device for the magnesium alloy sheet has the advantages that the structure is simple, the layout is compact, during the incremental forming process, the lubrication on a working face is more scientific and reasonable, the improvement on the quality of incremental forming processing can be effectively promoted, the pollution on an operating environment is lowered, and the waste of the lubricating oil is reduced.

The invention relates to equipment for injecting medicines into bodies of animals, in particular to a full-automatic continuous injector for epidemic prevention of chickens. The full-automatic continuous injector comprises a shell; a frame and an injector are arranged in the shell; the frame is provided with a coupling quick-clamping mechanism and a cylinder; the injector is connected with the cylinder through the coupling quick-clamping mechanism, and comprises a liquid inlet, an injection port and a liquid accommodating cavity; the liquid inlet and the injection port are respectively in sealed connection with a liquid medicine bottle and an injection needle, and are respectively provided with a check valve; one end of the liquid accommodating cavity is communicated with the injection port, while the other end is in sealed connection with a piston rod of the cylinder; the piston rod extends into the liquid accommodating cavity; a spring is arranged between the liquid accommodating cavity and the cylinder; one end of the spring is fixed on the outer wall of the injector, while the other end is connected with the piston rod; one end of the cylinder is connected with the injector, while the other end is connected with an injection quantitative regulation device; a needle outlet plate is arranged on the outer side of the shell, and is fixed with a chicken tracer corresponding to the injection needle; and the needle outlet plate and the shell are provided with needle outlets corresponding to the needle.

The invention provides a safe injector, and belongs to the technical field of medical apparatuses and instruments. The safe injector comprises an injecting end, a liquid storing device, a driving device, an energy storage element, an energy converter and a microprocessor, the injecting end is provided with a needle protecting assembly and detachably connected with the liquid storing device, the driving device comprises a power device and a transmission device, and the mutual bounding of a piezoelectric material layer and a substrate layer forms the energy convertor. The safe injector achievesautomatic injecting and meanwhile ensures the accuracy of the liquid inlet amount, the needle protecting assembly can effectively prevent a patient or a nurse in a hospital from being punctured by theneedle tip in the operating porcess, the patient and the nurse can keep away from the infection risk, the energy convertor converts mechanical energy into electric energy, the electric energy can bestored in the energy storing element to be supplied to the power device and the microprocessor, partial energy can be recycled to avoid energy waste, the manpower, the material resources and the financial resources can be saved to a great extent, and the energy consumption is reduced.

The invention provides an automatic treatment fermentation facility for livestock and poultry breeding manure, and relates to the technical field of wastewater treatment. The facility comprises a first fermenting tank and a second fermenting tank consisting of outer plates, arc plates and inner plates, wherein middle parts of the first and second fermenting tanks are separated through the inner plates; supporting rods are arranged at end parts of guide rods; a roof is arranged on the plurality of supporting rods; a plurality of diversion channels are formed in the arc plates in parallel; one guide rod is erected on each side of a fermenting tank component consisting of the first and second fermenting tanks, and a manure jet mechanism is arranged on the guide rods in a sliding fit manner; and a straw quantitative pushing mechanism is arranged on the outer plates. According to the automatic treatment fermentation facility, livestock and poultry breeding manure is automatically jetted byutilizing the automatic design of multiple mechanisms, padding is added automatically without manual participation to realize automatic treatment of manure, so that labor cost can be saved, and the efficiency can be effectively improved.

The invention discloses a medical automatic enema device. The device includes a syringe, an enema hose is sleeved on an injection nozzle at the top of the syringe, an opening is formed in the side wall of the syringe, a medicine grinding mechanism is mounted on the cylinder wall of the syringe at the opening position, a piston is arranged in the syringe, the periphery of the piston is sleeved witha sealing gasket, the rear end of the piston is connected to a connecting rod extending out of the syringe, a push handle is welded to the tail end of the connecting rod, a linear motor is installedon the connecting rod and fixed to the bottom of the syringe through a fixing frame, the medicine grinding mechanism comprises a fixing cylinder welded and fixed to the syringe, and a through hole corresponding to the opening is reserved in the bottom of the fixing cylinder. The medical automatic enema device is ingenious in structural arrangement and reasonable in layout. When in use, medicines or medicine powder is not needed to be ground in advance and pumped and injected with water through the syringe for injection, the medicines can be directly put into the medicine grinding mechanism tobe automatically ground and then mixed with the water, personnel only need to control injection, and operation is convenient and easy.

The invention discloses a ceiling built-in perfluorohexanone fire extinguishing system, which includes a bracket and a fire extinguishing assembly, and the fire extinguishing assembly is installed on the bracket; The position is provided with expansion bolts, the connecting column is connected with the top plate and the bottom plate by bolts, and an opening is set on the bottom plate; the fire extinguishing assembly includes a storage box, a smoke detection device, a controller, a nozzle, a first mixing chamber and a second mixing chamber. The system is used to be installed on the ceiling, and the process of installation and use is more convenient, and at the same time, it has the advantage of good fire extinguishing effect. In addition, the present invention also provides a fire extinguishing method, which can realize the purpose of rapid fire extinguishing.

A water tank refrigeration system of an agricultural irrigation machine comprises a water injecting pipe and a water discharging pipe which are arranged on the water tank. A water inlet electromagnetic valve is arranged on the water injecting pipe, a turbine is arranged on the water discharging pipe, and the turbine is connected with a driving motor. A water temperature sensor and a water level sensor are arranged in the water tank. The system further comprises a microcontroller. The water temperature sensor and the water level sensor are connected with the input end of the microcontroller and used f or transmitting the detected water temperature signal and the water level signal in the water tank to the microcontroller. The water inlet electromagnetic valve is connected with the output end of the microcontroller, the driving motor is connected with a relay, and the relay is connected with the output end of the microcontroller. The microcontroller controls the output signals of the water inlet electromagnetic valve and the relay according to the received water temperature signal and the water level signal. The invention automatically injects and discharges water, prevents the scalding accidents caused by manual operations, saves the labour force and reduces the labour strength.

The invention relates to the technical field of piglet vaccine injection equipment, in particular to an automatic piglet vaccine injection robot. The automatic piglet vaccine injection robot comprises a rack, a belt conveying device, a position sensor, an injection device and a controller, wherein the belt conveying device, the position sensor and the injection device are arranged on the rack; the position sensor is located at the injection device; the belt conveying device, the position sensor and the injection device are electrically connected with the controller; and piglets are placed on the belt conveying device, the belt conveying device drives the piglets to move, the position of the piglets is identified through the position sensor, then the piglets are conveyed to a designated position, the injection device injects vaccines to the piglets after the piglets reach the designated position, and the belt conveying device keeps on running for injection of the next piglet after injection. According to the automatic piglet vaccine injection robot, automatic injection of piglet vaccines is achieved, one-by-one inoculation by technicians is not needed, and personnel participation is not needed in the injection process, so that the efficiency is improved, and mistakes such as missed injection and mistaken injection are prevented.

The invention belongs to the technical field of animal epidemic prevention, and discloses an animal epidemic prevention injection device which comprises a medicine injection cylinder, a medicine pushing module, a medicine injection amount detection module, a medicine injection speed adjusting module, a medicine storage module and a main control module. The main control module is connected with the medicine pushing module, the medicine injection amount detection module, the medicine injection speed adjusting module and the medicine storage module and used for detecting the working states of all the controlled modules through the controller and conducting coordination control on work of all the controlled modules according to preset parameters. The medicine pushing module is used for pushing liquid medicine through an electric pump arranged at the rear end of the medicine injection barrel, and the input end of the electric pump communicates with the medicine storage module through a connecting pipe. Through the medicine pushing module, the medicine injection amount detection module, the medicine injection speed adjusting module, the medicine storage module and the main control module, automatic injection of medicine liquid can be achieved, the operation difficulty is lowered, manual confirmation of the medicine injection amount is not needed, time and labor are saved, the accuracy of the medicine liquid injection amount is improved, and safety is high.

The invention provides a liquid spraying device of a digital printing machine and its control method. By controlling the power mechanism to deliver compressed air to the inside of the liquid storage tank, the treatment hydraulic pressure in the liquid storage tank enters the main pipeline, thereby entering each branch pipeline, so as to When the first electromagnetic valve installed at the outlet end of each branch pipeline is opened, the treatment liquid is sprayed from the nozzle installed at the outlet end of the first electromagnetic valve to the surface of the printing medium on the platform below the nozzle, thereby realizing automatic spraying on the surface of the printing medium The treatment liquid operation not only ensures that the treatment liquid sprayed onto the printing medium is uniform, but also saves time and labor, and greatly improves the treatment liquid spraying efficiency.

The invention relates to dilution equipment, in particular to corrosive liquid dilution equipment for biotechnology. The technical problem to be solved is to provide the corrosive liquid dilution equipment for the biotechnology, which can realize automatic stirring and dilution and has a protection function. According to the technical scheme, the corrosive liquid diluting equipment for the biotechnology comprises a supporting base, an air cylinder, a stirrer, a clamping mechanism and a protection mechanism, the air cylinder is arranged on the upper portion of the supporting base, the stirrer is arranged on the lower portion of an air cylinder telescopic rod, the clamping mechanism is arranged on the supporting base, and the protection mechanism is arranged on the supporting base. Through cooperation between the clamping mechanism and the protection mechanism, when the corrosive liquid is diluted, the glass container can be clamped and limited, so that the situation that the dilution effect is affected due to the fact that the glass container shifts in the process of diluting the corrosive liquid is avoided.

The invention discloses a tool rotating incremental forming device for a magnesium alloy sheet. The tool rotating incremental forming device for the magnesium alloy sheet comprises a rack and a forming tool head. The tool rotating incremental forming device for the magnesium alloy sheet is characterized in that the rack is further provided with a lubricating oil injecting device, and the lubricating oil injecting device is connected with a controller in an external mode; during the incremental forming process, and under the control of the controller, the lubricating oil injecting device injects lubricating oil to the periphery of the working end which surrounds the forming tool head, and a bubble-like oil film is formed on a magnesium alloy sheet blank. The tool rotating incremental forming device further controls the lubricating oil to reasonably mix and blend with air, and according to the temperature rising condition of a forming region, automatic control is automatically carried out on a lubricating oil injection time, an injection volume and a rate. The tool rotating incremental forming device for the magnesium alloy sheet has the advantages that the structure is simple, the layout is compact, during the incremental forming process, the lubrication on a working face is more scientific and reasonable, the improvement on the quality of incremental forming processing can be effectively promoted, the pollution on an operating environment is lowered, and the waste of the lubricating oil is reduced.

The invention relates to an automatic injection instrument for radioactive substances. The automatic injection instrument comprises a power and stroke control part and an injection source; the power and stroke control part comprises lead screw fixing frames and lead screws fixed between the lead screw fixing frames; sliding blocks are arranged on the lead screws; injector downward-pressing platesare installed on the sliding blocks; the lead screws are connected with a motor; the injection source comprises an injector and a liquid three-way valve; the output end of the injector is connected with the liquid three-way valve; the liquid three-way valve is connected with a flow guide pipe; the motor is used for driving the lead screws to rotate; the lead screws are used for driving the slidingblocks to move vertically; and the sliding blocks are used for driving the injector lower pressing plate to move downwards to push the injector to inject liquid. The motor and the injector are adopted to achieve liquid injection; and injection with a person far away from the mold body is achieved in a guide rail mode and a wireless communication mode, automatic injection is achieved, radiation tothe person in the injection process is avoided, and the injection efficiency is improved.