112results about How to "Improve working power" patented technology

A high-power LED constant-current driving circuit converts an input power supply into an enable signal through a voltage conversion module, and outputs the enable signal to a constant-current driving module. An energy storage module starts energy storage when connected to the input power supply. The input power supply supplies power to a series LED lamp group through the energy storage module. When an enable end of the constant-current driving module receives the enable signal, a first switching end and a second switching end of the constant-current driving module are switched on. The constant-current driving module is used for boosting and driving the LED lamp group to turn on the LD lamp group. When the enable end of the constant-current driving module does not receive the enable signal, the first switching end and the second switching end of the constant-current driving module are switched off. The energy storage module supplies power to the series LED lamp group. When the constant-current driving module receives the enable signal, the series LED lamp group is boosted and driven, and the working power of a load series LED lamp group is increased. Thus, the high-power LED constant-current driving circuit can be connected with a high-power series LED lamp group.

The invention discloses an automatic escalator or a sidewalk that is driven by a double main machine, which includes a drive device, a first main machine and a second main machine that are connected in parallel, a control device and a load detection device, wherein, the load detection device is utilized to detect a load state signal of the escalator or the sidewalk and output the signal to the control device; the control device is utilized to judge the load state and control the drive unit to drive the first main machine to work independently or drive the first main machine and the second main machine to work at the same time. The automatic escalator or the sidewalk has the advantages that the escalator or the sidewalk is controlled by a double main machine independently, and the power of the main machines can be combined conveniently; the main machine can have different running states that can be adjusted according to the load state so that the two main machines can work at the power nearest to their rated load, so the working efficiency and the power factor of the main machine can be improved, the service life can be prolonged; meanwhile, the invention can save energy and the operation is safe and reliable.

The invention provides an all-fiber Bessel light beam generator which is composed of a standard single-core fiber, an annular core fiber and a graded index fiber. When light wave is input to the single-core fiber, the transmission light wave can be coupled to the annular core fiber to form an annular light field, then the annular light field is formed into the Bessel light beam at a fiber end through the equivalent Fourier expansion optical transformation of the graded index fiber. Due to the light beam generator provided by the invention employing an all-fiber system, the graded index fiber is used for realizing a function of the lens, the whole generator is easy to align and is more stable compared with the traditional geometry optical system. In addition, the light beam generator has the characteristics of minimal structure, agile operation and strong anti-interference capability. The light beam generator can be applied to the fields of light beam generation, particle controlling and sensing and the like.

The invention relates to a potato harvesting machine for hilly and mountains regions, and belongs to the field of agricultural harvesting machinery and equipment. An excavating device digs up soil andpotato mixtures; power is transmitted to a power transmission system through a power output shaft of a tractor, is outputted to drive shafts in a gear box to rotate, and is transmitted to a driving wheel through a chain to drive vibration separating devices to rotate; the primary vibration separating device is rotated to vibrate and separate the soil and potato mixtures which are then conveyed tothe secondary vibration separating device; potatoes with less soil are subjected to vibration separating again by the secondary vibration separating device, and then conveyed to a lateral conveying system. The potato harvesting machine has the advantages that the angle of the excavating device is adjusted through a hydraulic cylinder to achieve stepless angle adjustment; the two-stage vibration separating devices are applied to solve the problem of high soil stickiness of the hilly and mountains regions, and the separation frequency is high; the potatoes are piled up in strips through a lateral conveying device, the rate of visible potatoes is increased, and the potato burry rate and damage rate are decreased.

The invention discloses a vapor chamber with a supporting pillar and a groove composite structure. The vapor chamber comprises an upper covering plate and a lower covering plate, wherein a condensation end liquid suction core is disposed in a cavity of the upper covering plate; an evaporation end liquid suction core is disposed in a cavity of the lower covering plate; an annular cavity is disposedin the evaporation end liquid suction core; a supporting pillar is disposed at the center of the annular cavity; a groove structure is disposed in peripheries of the annular cavity; both the supporting pillar and the groove structure get contacted with the condensation end liquid suction core; and the upper covering plate and the lower covering plate are sealed, and a liquid filling hole is formed between the upper covering plate and the lower covering plate. Evaporation of a liquid working medium and collection of a condensation liquid are promoted by the cavity of the evaporation end liquidsuction core, and a liquid backflow channel is formed by the supporting pillar to reduce a pressure drop at the center; evaporation of the liquid working medium and backflow of the working medium toa center evaporation area are promoted by the cavity of the groove, so heat transfer performance is improved; a main backflow channel of the condensation liquid is formed by an entity part of the groove, so condensation and backflow are accelerated; and strength of the vapor chamber is ensured by the supporting pillar and the groove structure, so collapse and thermal deformation of the vapor chamber are avoided effectively.

The present invention relates to a wind tunnel airflow engine, a wind tunnel airflow generator and application thereof. The wind tunnel airflow engine comprises a wind tunnel and an airflow engine which are mounted in wind tunnel by bearing; the hull of wind tunnel is rigidity channel which consisting of an air inlet and air outlet on two sides and tail part, the air outlets on two sides of wind tunnel extend outward as airplane wings from two sides of tunnel; the airflow engine device is provided in the space of air inlet and air outlet of wind tunnel. The present invention using wind tunnel can produce positive and negative pressure at air inlet and outlet to cause airflow in tunnel do work and the power is higher than power produced by airflow outside the tunnel, airflow engine device of generator mounted in wind tunnel make the generate power of wind tunnel airflow generator is higher than power of wind power generator in environment, the energy conversion rate is enhanced and the airflow generator is not effected by change of nature wind power, wind direction, and the application range is wide.

The invention relates to a non-polar capacitor voltage reducing and dividing rectification linear light-emitting diode (LED) driving circuit. A capacitor is adopted to reduce voltage first and then divide the voltage, input alternating current voltage and output power change linearly by utilizing capacitive reactance, the ripple of the direct current voltage output by a voltage dividing rectification circuit is small, and the capacity of a filtering capacitor is small. A non-polar capacitor voltage reducing and dividing rectification linear LED driving circuit has the advantages of being simple in structure, low in cost, small in size, high in power factor and efficiency and long in service life. The LED driving circuit is simplified, a driving requirement of the LED is met, a non-polar capacitor is utilized to replace an electrolytic capacitor, capacitor loss is reduced, and the service life of the driving power supply is prolonged. A dimming variable resistor is provided to achieve brightness adjustment of an LED group, the shortcomings of low power factor and efficiency and no dimming of a capacitance-resistance pressure reducing type LED driving power supply are overcome, the driving power supply is especially suitable for driving LED lamps with the power ranging from 3 to 20 watts and is an improved product of the existing capacitance-resistance LED lamp driving power supply.

The invention provides an ultrasonic-crushing planetary ball mill which comprises a planetary gear transmission mechanism. The input end of the planetary gear transmission mechanism is connected with a motor. At least two ball mill tanks are arranged on a rotary disc of the planetary gear transmission mechanism. An ultrasonic generator is arranged in each ball mill tank. When planetary ball milling is carried out on materials by the ultrasonic-crushing planetary ball mill, ultrasonic wave intensity energy fields are exerted, and therefore while even material mixing is achieved, material powder can be crushed into the nanometer order from the micro order; and the ultrasonic-crushing planetary ball mill has the advantages of being simple in structure, high in ball milling efficiency and capable of crushing powder.

The invention relates to radio communication equipment and discloses a P-waveband high-power broadband element antenna which comprises an antenna element, a tuning post, a tuning cavity, a vertical post, a feed seat and a base seat, wherein a coaxial feed connector is installed on the antenna base seat and is connected with a signal transmitting source, and a balance feed structure in the form of a grid plate is arranged between the coaxial feed connector and the element. The power capacity is 3 times of that of the conventional coaxial wire balance feed, the standing wave bandwidth of the element antenna is broadened, and the bandwidth on a carrier with the standing-wave ratio smaller than 1.3 can reach 20% which is 2 times of the bandwidth of the conventional element antenna structure. The invention solves the problems of narrow bandwidth, small power capacity and the like of the traditional element antenna and has the advantages of broad band, compact structure, high power resistance and the like.

The invention discloses a waste gas bypass valve of a turbocharger. The waste gas bypass valve is provided with a bypass flow channel and a valve element, a gas inlet and a gas outlet of a turbine are communicated through the bypass flow channel, and the valve element is used for opening or closing the opening part of the bypass flow channel. The valve element comprises a valve rod part and a valve plate part connected to the valve rod part, the valve rod part can axially move so that the valve plate part can be driven to horizontally move along the end face of the opening part of the bypass flow channel, and the end face of the opening part is opened or closed through the valve plate part. The waste gas bypass valve can improve control precision of an engine under various load work conditions, and enhance sealing performance of the waste gas bypass valve of the engine under a high load.

The invention relates to a wireless electromagnetic wave direct current control casing valve capable of relieving pressure. The valve comprises an upper joint, a baffle ring, an upper outer shell, a middle outer shell, a lower outer shell, a lower joint, a valve clack opening and closing mechanism, a bypass pressure relief mechanism and a wireless electromagnetic wave control system, wherein the valve clack opening and closing mechanism and the bypass pressure relief mechanism are arranged in the middle outer shell, the upper joint and the lower joint are connected with an upper casing pipe and a lower casing pipe respectively through taper threads. According to the valve, through the adopted wireless electromagnetic wave control system, signals are transmitted through the metal walls of the casing pipes, the safety and reliability are higher compared with that of an existing control mode, and the machining and operation construction difficulty of a casing pipe string is reduced; a hollow shaft motor is used in the valve clack opening and closing mechanism, so that the narrow space between the casing pipes is well met, and the motor can output large torque, so that valve clack opening and closing are reliable; and the bypass pressure relief mechanism is arranged so that the upper and lower pressure of the casing valve can be balanced, lower pressure building is prevented, and normal opening of the casing valve is guaranteed.

The invention provides a self-cleaning dining table including tables, four legs, two side panels, two guide rails, two rack bars, two sliding blocks, two first electric joints, two first telescopic cylinders and two first connecting plates. The self-cleaning dining table is characterized in that four table legs are fixedly installed on four corners below the dining table respectively, two side support plates are symmetrically installed under the dining table respectively, and two guide rails are fixedly installed on the outer surfaces of the two side support plates respectively; As that cleanmechanism flips from under the table to the working position when the table needs to be cleaned. At first, that leftover food on the table is simply turned up by a hard brush to prevent sticking too firmly, so that the work power of the negative pressure generator is too high, and then the leftover food is sucked into a garbage bag by a rear table top garbage suction nozzle through a table top garbage feed pipe and a table top garbage discharge pipe.

The invention relates to a device for improving water hammer effect to generate kinetic energy. The device comprises a shell, a transmission wheel and a rotating shaft; the transmission wheel is rotationally sealed in the shell through the rotating shaft; square gaps are formed in the outer peripheral edge of the transmission wheel, and include a first gap, a second gap, and a third gap; a water tank is arranged out of the shell; the water tank communicates with the internal of the shell through a first water pipe and a second water pipe, and conveys water currents alternately into the third gaps; and the first water pipe and the second water pipe are respectively provided with a first electromagnetic valve and a second electromagnetic valve for opening or closing the first water pipe and the second water pipe to enable the water currents in the corresponding gaps to generate the water hammer effect. The device has the following beneficial effects: as the water hammer effect generating place is in a cavity formed by the upper gap of the transmission wheel and the inner wall of the shell, and the acting of the water hammer effect is mainly generated on the transmission wheel, the device for generating the kinetic energy greatly improves the acting rate of the water hammer effect, and the output kinetic energy is higher.

The invention provides a cable cooling system and a control method thereof and belongs to the field of machinery. The cable cooling system and the control method thereof are used for solving the problem that cables are heated. The cable cooling system comprises a cooling pipe, a cooling device, a hot water pipe, a cold water pipe and two pumps, wherein the hot water pipe is connected with a hot water outlet of the cooling pipe and a hot water inlet of the cooling device, the cold water pipe is connected with a cold water inlet of the cooling pipe and a cold water outlet of the cooling device, and the two pumps are arranged in the hot water pipe and the cold water pipe respectively. The cable cooling system can effectively reduce heat of the cables and can be applied to different types of cables.

The invention discloses adjust and control circuit in use for circuit of high intensity discharge (HID) lamp, and for controlling ascend of operating power of HID lamp. When operating power of HID lamp exceeds setting value in advance, the invention makes circuit of HID lamp fall into protection state. Through monitoring device, the invention monitors circuit of HID lamp. Comparing monitored signal with power signal setup in advance as well as safety signal setup in advance, the invention adjusts operating state of HID lamp circuit. That is to say the invention adjusts power of lamp circuit or makes lamp circuit enter into protection state.

The invention discloses a humidifying method and device for a household appliance and the household appliance. The method comprises the steps of controlling the household appliance to start a wet filmassembly for humidifying an indoor part, and detecting the first humidity of the current indoor part; recognizing that the humidifying duration of the wet film assembly reaches the preset duration, and detecting the second humidity of the current indoor part; and obtaining a humidity difference between the first humidity and the second humidity, and according to the humidity difference, adjustingthe water spraying amount of a humidifying device to the wet film assembly. After the wet film assembly is started to perform humidifying, the first humidity and the second humidity are obtained, when it is recognized that the second humidity is smaller than a first preset humidity threshold value, the humidifying device is started for spraying water to the wet film assembly, and the problems that when only the wet film assembly is depended on for performing humidifying, the evaporation effect is poor, and the humidifying amount is small are solved. Furthermore, the water spraying amount of the humidifying device can be adjusted according to the humidity difference, the requirement for the humidifying amount can be met, and the problem that the user comfort level is lowered due to the fact that the humidifying amount is excessively large can be avoided.

The invention belongs to the related technical field of micro-pumps, and discloses a vortex type micro-pump. The micro-pump comprises a volute, a rotor component, a stator component and a base; the volute is connected to the base; a pump cavity is formed by the volute and the base together; the rotor component is accommodated in the pump cavity and is rotationally connected to the base; the statorcomponent is arranged in the base; the outer side of the stator component is sleeved with the rotor component; the rotor component comprises a columnar impeller; the impeller is rotationally connected to the base and comprises an impeller base body, multiple upper blades, multiple lower blades and an annular blade separator; the blade separator is arranged on the outer circumference of the impeller base body; and the upper blades and the lower blades are arranged on the blade separator respectively and are located on two opposite sides of the blade separator respectively. According to the micro-pump, the lift and the efficiency are increased, and the micro-pump is relatively high in applicability and compact in structure.

The invention discloses a coaxial two-terminal output integrated permanent magnet transmission device, which comprises a permanent magnet motor assembly, a cycloidal permanent magnet gear assembly anda power output assembly, wherein the permanent magnet motor assembly comprises a first shell, a stator and a rotor; and the cycloidal permanent magnet gear assembly comprises a second shell, an outerpermanent magnet coil, a first inner permanent magnet coil, a second inner permanent magnet coil, a power output disc, a pin shaft, a first eccentric wheel and a second eccentric wheel. A belt pulleyand a transmission node thereof are cancelled, thereby improving the transmission reliability and the transmission efficiency; the permanent magnet motor is adopted to replace an asynchronous motor,and as the work efficiency and the power factor of the permanent magnet motor are greatly higher than those of the asynchronous motor, the transmission efficiency of the system can be further improved; the cycloidal permanent magnet gear is adopted to replace a mechanical contact gear, and as the permanent magnet gear has the advantages of no friction, no wear, no noise and overload protection, the transmission reliability of the system can be further improved.

The invention relates to a device capable of generating kinetic energy by enhancing the water hammer effect. The device capable of generating the kinetic energy by enhancing the water hammer effect comprises a shell body, a driving wheel and a rotary shaft, wherein the driving wheel is rotatably sealed in the shell body through the rotary shaft; square through holes are formed in the peripheral edge of the driving wheel and comprise the first through hole, the second through hole and the third through hole; and a water tank is arranged outside the shell body, the water tank communicates with the interior of the shell body through a first water pipe and a second water pipe and delivers water flow into the three through holes alternately, a first solenoid valve and a second solenoid valve are correspondingly arranged on the first water pipe and the second water pipe, and the water flow in the corresponding through holes can generate the water hammer effect through opening or closing of the first solenoid valve and the second solenoid valve. The device capable of generating the kinetic energy by enhancing the water hammer effect has the beneficial effects that since the water hammer effect is generated in the through holes of the driving wheel, the power of the water hammer effect is mainly generated on the driving wheel, the power efficiency of the water hammer effect is greatly improved, and output kinetic energy is large.

The invention relates to a high-power solid-state laser. The high-power solid-state laser comprises xenon lamp tubes used as light sources, a laser rod which can generate laser through the cooperation of the xenon lamp tubes, light-reflecting tiles arranged at the external sides of the xenon lamp tubes, as well as xenon lamp tube circulating water sleeves and a laser rod circulating water sleeve which are respectively sleeved on the external sides of the xenon lamp tubes and the external side of the laser rod and are used for water circulation heat dissipation. The high-power solid-state laser is characterized in that the number of the xenon lamp tubes is three; the three xenon lamp tubes are distributed in a manner that the three xenon lamp tubes from a structure shaped like a Chinese character ''pin'' and then are arranged around the laser rod; the three light-reflecting tiles are respectively arranged at the back side of each xenon lamp tube, and the light-reflecting surfaces of the light-reflecting tiles face the laser rod; and rare earth glass tubes are adopted as the circulating water sleeves. The high-power solid-state laser of the invention has the advantages of small dimension, large power and wide application range.

The invention discloses a multi-functional kitchen equipment, the principle of which is to utilize the flowable and variable-shaped characteristics of the air, accelerate it with a fan, combine the air duct of the turntable to generate eddy current wind energy, and take away the cooling capacity of frozen food. And perform heat exchange with it to complete the thawing of food. At the same time, the cooking of the food can also be completed after the air is heated by the heating device. Moreover, the structure of the device can exist independently, and can also be combined with a microwave oven to give birth to a new multifunctional device.

The invention discloses an efficient spraying vehicle and belongs to the field of plant protection machinery. The efficient spraying vehicle comprises a vehicle frame, and the bottom of the vehicle frame is provided with wheels. A chemical supply box, a fuel generator and a spraying mechanism are arranged on the upper portion of the vehicle frame. The spraying mechanism comprises an air drum, a fan, a plurality of spraying heads and a high-pressure pump. The fan is arranged in the air drum, the two ends of the air drum are provided with an air inlet and an air outlet respectively, and the spraying heads are circumferentially arranged at intervals along the air outlet. An inlet of the high-pressure pump is connected with the chemical supply box, an outlet of the high-pressure pump is connected with the spraying heads, and the high-pressure pump and the fan are electrically connected with the fuel generator. The fuel generator generates electricity to drive the fan and the high-pressure pump to work, the operation power of the spraying vehicle is improved, the working lift is improved, so that the spraying requirements of various trees are met, and the efficient spraying vehicle is simple in structure and convenient to operate. The spraying heads are arranged on the air outlet and supply liquid more evenly and more stably, and the spraying effect is improved.

The invention belongs to a power-driven power generation method for a device assembled to a running electric vehicle. The power-driven power generation method comprises the steps that a cam wheel is driven when the electric vehicle runs, the cam wheel drives drive shafts of drivers, the drive shafts drive a shaft, the shaft drives a push rod, the push rod drives a spline shaft, the spline shaft drives a gear to drive a generator to generate electricity, and the generated electricity is used for charging the electric vehicle or supplying power to power consumption equipment through an electricenergy control module on the electric vehicle. According to the power-driven power generation method, a transmission device and a power generation device are included. The transmission device comprises an electric vehicle underframe, the cam wheel, a driver device, the shaft, the push rod, the spline shaft and the gear. The power generation device comprises a support seat, the generator, a gear and a one-way bearing. According to the device, the device cam wheel is mainly arranged at the bottom of the electric vehicle, the bottom end of a tire is in flush contact with the ground of an electricvehicle tire, and when the electric vehicle is a two-wheel vehicle, the electric vehicle is located between a front wheel and a rear wheel of the device cam wheel position and is close to the rear wheel; and when the electric vehicle is an electric vehicle with three or more wheels, the device cam wheel position is located between two rear wheels.

The invention discloses an intelligent braking system with quick cooling function. The intelligent braking system with the quick cooling function comprises a cooling device and a braking device. The braking system can achieve braking by enabling brake pads to move towards a brake disc simultaneously, so that the braking response speed of a brake is quicker, and the brake is more sensitive. Additionally, the system is helped by the gravity action of a gravity wheel to recover the state without braking. According to the brake, cooling is achieved by utilizing a semiconductor cooler, and the speed of cooling on the brake can be achieved by controlling the power of the semiconductor cooler. The intelligent braking system with the quick cooling function has the advantages of being simple in brake structure, high in brake cooling speed, safe and quick in braking response.

The invention relates to the technical field of engines, in particular to a method for increasing the power of an engine with water; the method comprises the following steps: fuel is fed into a burning chamber, and burned in the burning chamber; the water is injected into the burning chamber; high temperature is produced when the fuel is burned; although the water cannot be directly burned and produces heat, the water quickly produces plenty of gas under the high temperature of the burning chamber, produces higher pressure, and expands and makes power together with the gas produced when the fuel is burned, which improves the power of the engine and reduces the fuel oil consumption.

The invention discloses an electronic vibration fresh-keeping refrigerator with a good fresh-keeping effect. The electronic vibration fresh-keeping refrigerator comprises a refrigerator body, a fresh-keeping chamber is formed in the refrigerator body, a refrigerator door is rotatably connected to the outer wall of the refrigerator body, a cavity is formed in the refrigerator body, a fixing plate is fixedly connected to the inner wall of the cavity, and a moving rod is inserted into the fixing plate; and a sliding groove is formed in the end, away from the fixing plate, of the movable rod, a rotating rod is rotationally connected to the inner wall of the box door, and a push rod located in the sliding groove is fixedly connected to the end of the rotating rod. By the arrangement of an ultrasonic generator and an ultrasonic transducer, frosting of the inner wall of the refrigerator is avoided, and the refrigerating effect of the refrigerator is guaranteed; a time relay and an electromagnet are arranged, when the refrigerator door is opened for a period of time or longer, the electromagnet is powered on to generate magnetism to push a toothed plate to move, and automatic closing of the refrigerator door is achieved; and a power amplifier is arranged to increase power when the refrigerator door is opened, so that constant air temperature in the refrigerator is ensured.

The invention provides a portable laser gun, which comprises a CO2 laser emitter, a sighting device and a housing. The portable laser gun is characterized by further comprising a super capacitor, a boost power supply, a controller, a water pump and a cool storage cooler. The portable laser gun can achieve the following aims: firstly, it takes only dozens of seconds to remove foreign matters within a laser effective working distance range, lead equipment will not be damaged, the operation is safe and fast, the super capacitor can meet needs of high-power power supplying, and compared with a generator, the laser gun is greatly reduced in weight and is convenient to carry; secondly, through the in-built water pump and the cool storage cooler, the laser gun can be quickly adjusted to work at a normal temperature, is simple and safe to operate, and is further reduced in weight; and thirdly, except a tripod with a holder, all fittings and the laser emitter are integrated as a whole, the occupation space is greatly saved, the number of on-site carrying workers is reduced, the laser gun is convenient to carry, and brings convenience for field work to workers.

The invention relates to the technical field of three-phase asynchronous motors, in particular to a three-phase asynchronous motor energy-saving device which comprises a motor. Connecting ports of the motor are respectively connected with a three-phase power source, thyristors are arranged among the three-phase power source and the connecting ports of the motor, two optional power wires of the three-phase power source among the three-phase power source and the corresponding thyristors are connected with a power circuit and a phase-sequence detector respectively, a terminal of the power circuit is connected with a power port of a single chip microcomputer, a corresponding terminal of the phase-sequence detector is fixedly connected with a corresponding pin of the single chip microcomputer, and an operating signal interface and a trigger interface of each thyristor are fixedly connected with corresponding pins of the single chip microcomputer. When the three-phase asynchronous motor energy-saving device is used, the single chip microcomputer and the thyristors are used for adjusting terminal voltage of the motor, so that operating efficiency of the motor can be greatly improved, power factor of the motor can be greatly increased, and energy saving is achieved. The three-phase asynchronous motor energy-saving device has the advantages of simple structure, reasonableness in arrangement, low manufacture cost and the like.

The invention relates to the technical field of 3D printing, and discloses an intelligent 3D printing consumable recovery device. The recovery device comprises a melting barrel, wherein the left and right sides of the front and rear sides of the melting barrel are fixedly connected with the tops of four supporting legs correspondingly; and the inner sides of the two supporting legs located on theleft side of the melting barrel are fixedly connected with the front and rear sides of a storage battery correspondingly, and a controller is fixedly connected to the front side of the supporting leglocated on the right front side of the melting barrel. According to the intelligent 3D printing consumable recovery device, through the arrangement of an electric heating plate, 3D printing consumables are molten into melt, and through the cooperative arrangement of a first driving motor and rotating rods, spiral blades can rotate, the 3D printing consumables are molten more sufficiently; and through cooperative arrangement of a second driving motor, a cam, a connecting plate and an ejector rod, a push plate extrudes the melt in a discharging groove out of an extrusion head, and through arrangement of a third driving motor, a collecting wheel collects the melt extruded out of the extrusion head.