324results about How to "Adapt to requirements" patented technology

The invention provides a multifunctional optical-axis parallelism rectifying instrument and a method for calibrating the rectifying instrument, which can greatly reduce the manufacturing and mounting cost of rectifying equipment and perform flexible configuration to be suitable for the requirements of different multi-optical axis systems to be rectified. The multifunctional optical-axis parallelism rectifying instrument comprises a plurality of discrete parallel light tubes, wherein the plurality of parallel light tubes are in one-to-one correspondence with a plurality of sub-systems of the multi-optical axis system to be rectified; and the plurality of parallel light tubes are fixedly mounted on a compound table respectively through a positioning block, and a fine adjustment-locking device is arranged in the positioning block. The multifunctional optical-axis parallelism rectifying instrument provided by the invention can avoid the processing risk and high cost of a large-caliber non-spherical reflecting mirror and can meet the requirements of large optical axis span parallelism rectification; and a targeted light source and observation equipment can be adopted, thus functional modules do not need to be replaced during the rectification process, the operation is simple and ordered, and the repeated adjustment is not required.

The invention discloses a method for tracking a moving object on a production line, and belongs to the field of automatic devices. The method comprises the following steps that: a visual sensor acquires an image of the moving object and transmits the image to a computer; a servo motor controls the operating speed of a conveying belt and acquires displacement information of the conveying belt; the computer receives the image and identifies position information of the moving object; the computer eliminates the situations of missing and repeated identification of the moving object according to the image, the position information, a first decision making condition and a second decision making condition and acquires effective position information of the moving object; the computer acquires position coordinates of the moving object according to the effective position information and the displacement information and stores the position coordinates in a grasped moving object database; and parallel mechanical hands sequentially extract the position coordinates of the moving objects from the grasped moving object database and perform the grasping operation. The method can meet the requirement that the parallel mechanical hands grasp the scattered moving objects at a high speed in real time.

The invention discloses an industrial field oriented intelligent Internet-of-things gateway which comprises an industrial PC. The industrial PC is provided with an Ethernet interface, a POWERLINK interface, a USB interface and a serial port. The industrial PC performs communication with external equipment through an OPC / OPC UA protocol. Along with economy development and manpower cost increase, amanufacturing enterprise tends to utilize automatic and intelligent equipment or system for replacing or reducing working of the man. But for truly realizing few man working and no-man working in a production process, cooperated control of producing steps of production field processing, conveying, ensuring, detecting and the like is required in a production process control system. Furthermore functions such as real-time monitoring of a field state and in-time response elimination of a field abnormity are required. The industrial field oriented intelligent Internet-of-things gateway can realizereal-time acquisition of field data, intelligent perception and real-time optimization control of the process. Furthermore the industrial field oriented intelligent Internet-of-things gateway can supply basic supporting for realizing a production process intelligent control function.

The invention provides a polyurethane rail tie plate which is a microporous polyurethane elastomer made from raw materials of a polyalcohol composition, an NCO-blocking modified isocyanate curing agent and a foaming agent. The invention further provides a preparation method of the polyurethane tie plate, comprising the following steps: adding the foaming agent to the polyalcohol composition; adding the modified isocyanate curing agent to a mixture of the polyalcohol composition and the foaming agent according to a certain proportion at the temperature of 25-60 DEG C; and stirring and evenly mixing the obtained mixture, casting for molding, curing, taking out and then post-curing to obtain the polyurethane tie plate. The dynamic-static stiffness ratio of the tie plate is not more than 1.5; fatigue tests for 3 million times show no damage to appearance of the tie plate and low dimensional change rate of not more than 30%, thus achieving good damping and cushioning effects and enhancing comfortableness when a train runs; and meanwhile the rail tie plate has good durability.

The invention discloses a method for realizing a sleeping and waking mechanism of an optical network unit (ONU) of a passive optical network, which comprises: arranging a register on an ONU device specially used for storing a sleeping / waking state parameter of the ONU device; arranging a descriptive list for the sleeping / waking state of the ONU device on an OLT; and then, adopting different steps under the triggering case of the ONU device from the sleeping state to the waking state or from the waking state to the sleeping state. The invention enhances the ability of the OLT to control the ONU and enhances the judging ability of the ONU in the meantime.

The invention relates to a miniature hydraulic garage, comprising two layers on the ground, wherein each layer has two spaces. The garage is simple lift type solid parking equipment with independent structure and control. The garage comprises a support mechanism, front and rear parking boards, a lifting arm mechanism, a dynamic control mechanism and a steel wire synchronous mechanism. The steel wire synchronous mechanism realizes synchronization of two lift cylinders; the parking boards are in horizontal state when on the ground, so that parking is convenient, while the parking plates are lifted, the parking space for the next space is increased. The garage adopts self-locking of a connecting rod type lifting arm instead of a safe hook, when the parking board is lifted to a right position, the included angle between the connecting rod and the lifting arm exceeds 180 degrees to form self locking. The miniature hydraulic garage has the characteristics of more convenient vehicle storage and pickup and simpler operation, has safer and more reliable structure, and can meet the requirement of different users.

The invention discloses an event-based autonomous identification method for power grid monitoring alarm information. The event-based autonomous identification method comprises the following steps: the step 1, collecting required basic data; the step 2, sorting feature information related to power grid change, and building an event rule base; the step 3, judging the alarm information by using a rule to form an event preliminary classification result and converting the event preliminary classification result into a vector; the step 4, performing data preprocessing on the original monitoring alarm information, generating a feature vector, and building a training sample set by combining the feature vector with the vector of the preliminary classification result; the step 5, training and learning the training sample set by adopting a convolutional neural network classification model; and the step 6, obtaining an accurate identification result of the monitoring event by using the trained convolutional neural network model. According to the method, autonomous identification of power grid alarm events and business events can be realized, the screen monitoring pressure of monitoring business personnel is effectively reduced, and the work efficiency of daily monitoring and accident exception handling is improved.

The invention relates to a system in which bridges (16, 18) with flanges (17, 19) for intercell connectors (24), said bridges connecting positive lugs (12), on the one hand, and negative lugs (14), on the other, are, in a casting station (270), cast onto the lugs (12, 14) of positive and negative battery plates, which are assembled to form packs (10), after subjecting the lugs (12, 14) to a pretreatment by brushing and with flux. The packs (10), which are comprised of battery plates and which are provided with bridges (16, 18) in the aforementioned manner, are placed inside compartments (22) for cells in battery cases (20) while being arranged in groups each consisting of three packs. Cassettes (30) are used for moving the packs (10) of battery plates, and the packs (10) are held in these cassettes while being squeezed between fixed and moving partitions (305, 307). The packs (10) are placed inside these cassettes (30) in such a manner that solely lugs (12) of positive plates are placed on one longitudinal side, and solely lugs (14) of negative plates are placed on the other longitudinal side.

The invention provides a power grid out-of-step disconnecting control system and method, and belongs to the field of power system stability control. Based on out-of-step judgment of a regional power grid, an out-of-step situation of the regional power grid is judged step by step, so that the invention provides more comprehensive consideration; based on out-of-step judgment of a large-area power grid, the influence of out-of-step of the regional power grid is considered, and the possibility of power failure of a local power grid is reduced; furthermore, the out-of-step judgment method provided by the invention effectively locates a line where an out-of-step center is located, and performs a disconnecting operation on the line where the out-of-step center is located; when a system generates serious out-of-step oscillation, the power grid is quickly disconnected, the disconnecting measure is quickly and reasonably utilized in a first period of the out-of-step, and the out-of-step fault is prevented from spreading over the whole power grid; by inducing a wide-area measurement technique and utilizing a PMU device, electric data of the power grid is measured in real time on-line, communication is performed by utilizing the optical fiber communication technology, and a main grid control center judges the out-of-step of the power grid, controls the whole power grid and ensures that the power grid is reliably disconnected when the power grid occurs the out-of-step.

The invention relates to a full-automatic intelligent hydraulic workover rig. The full-automatic intelligent hydraulic workover rig comprises a vehicle-mounted chassis, an electric control cabinet, chassis support legs, a hydraulic station, an energy-accumulation compensating device, a derricking cylinder, an operation console, an oil sucker rod, an uplifting manipulator, a flexible guide rail steel wire rope, a small crane winch, a hydraulic elevator, a small crane, a flexible guide rail winch, a main cylinder guide rail, a main steel wire rope, a fixing end of the main steel wire rope, a top driving device, a main hydraulic cylinder, a derrick, an oblique steel wire rope, an oil pipe, an energy accumulator, a nitrogen bag, pipe moving guide rails, a main valve block, a pipe moving gear rack, pipe moving rollers, a pipe moving trolley, a rotary mechanism assembly, a pipe moving cantilever assembly, a pipe moving motor protecting cover, a pipe moving motor assembly and a main fixed pulley block, wherein an automatic pipe moving and arrangement system is arranged on the vehicle-mounted chassis, and comprises an automatic pipe arrangement mechanism, an oil sucker rod pipe arrangement device assembly, an oil pipe arrangement device assembly and a pipe moving mechanism assembly. The full-automatic intelligent hydraulic workover rig is suitable for the development requirements of intelligence of workover operation of an oilfield and automation of whole-process operation.

The invention relates to a method of preparing polyhydric alcohol by using crops straws, comprising the steps: counting by mass portion, 100 portions of organic solvent and 1 to 6 portions of catalyst are evenly mixed, then 15 to 40 portions of crops straws are added under 80 to 210 DEG C, and the polyhydric alcohol can be obtained by reacting for 60 to 240min. The method fully utilizes rich and reproducible agricultural residue; the hydroxyl value of the obtained polyhydric alcohol is 180 to 850mg KOH / g; crops straw catabolites of different contents and polyhydric alcohol of different hydroxyl values can be obtained by adjusting the production process and the portions according to requirements. The production process of the invention is simple and the invention can be directly used for synthesizing polyurethane foam plastics without the need of post-processing procedures of vacuum dehydration, product separation, etc.

The invention discloses an elastic knurling tool of a robot, which is characterized in that a cover plate flange and a sleeve are fixedly connected by bolts; a pressure sensor is fixedly arranged on the cover plate flange by the bolts, a pressure head of the sensor is connected to the bottom of the pressure sensor by threads, a spring compressing block supports against the pressure head of the sensor by the upper end of a compressed spring, and the lower end of the compressed spring supports against the top end of a spline shaft; a roller wheel installing block for installing a blank-pressed roller wheel is arranged and is connected with the spline shaft by a connecting block, and the mutual rotation between the roller wheel installing block and the spline shaft is limited by a flat key of the spline shaft; and the rotation between the spline shaft and the sleeve is stopped by the flat key of the spline shaft. The elastic knurling tool has the advantage of simple structure, is easy to implement, and can meet the requirements of an elastic adjusting mechanism of a knurling system.

The double spherical shock absorbing and insulating bearer for railroad bridge includes an upper bearing plate, a middle bearing plate and a lower bearing plate superposed successively and sliding teflon plates set between bearing plates. The lower bearing plate has fixed shearing force member. The middle bearing plate has an upper spherical surface in small curvature radium for connection to the upper bearing plate through spherical spin friction, and a lower spherical surface in great curvature radium for connection to the lower bearing plate through spherical sliding friction. In addition, there are also a top basin on the upper bearing plate and a sliding teflon plate in between. the present invention has obvious shock absorbing and insulating effect, easy control and regulation, capacity of ensuring structural safety and lowering engineering cost, and other features.

The invention discloses a cervical lymph node ultrasonoscopy feature selection method, and relates to the technical field of image processing. The technical problem needing to be solved is that the genetic algorithm and the dispersing particle swarm optimization are easily caught in the local extremum when the genetic algorithm and the dispersing particle swarm optimization are utilized for carrying out cervical lymph node ultrasonoscopy feature selection. According to the technical scheme, the method comprises the first step of collecting and extracting the quantization feature of a cervical lymph node image, the second step of forming a sample set, the third step of designing an extremity learning machine classifier, the fourth step of learning and training the sample set, the fifth step of calculating the accelerated speed of each individual, the sixth step of updating the respective speed, the seventh step of calculating the respective Boltzmann function, the eighth step of updating the respective position and the ninth step of terminating the process and outputting the optimal position, namely, the optimal character subset if the end condition is met, or otherwise, adding iteration with 1 and carrying out the third step to continue evolving the population until the end condition is met. The cervical lymph node ultrasonoscopy feature selection method is suitable for helping doctors to select valuable cervical lymph node ultrasonoscopy features.

The invention discloses a water-based polyurethane adhesive and a preparation method thereof. The preparation method is characterized by comprising the following steps: mixing and emulsifying a non-water-soluble blocked isocyanate curing agent and a polyurethane prepolymer, thereby obtaining the water-based polyurethane adhesive, wherein the non-water-soluble blocked isocyanate curing agent serves as the core, and the polyurethane prepolymer serves as the shell; or mixing and emulsifying a polyurethane prepolymer of which the NCO terminal group is blocked by a blocking agent and the non-water-soluble blocked isocyanate curing agent, thereby obtaining the water-based polyurethane adhesive, wherein the non-water-soluble blocked isocyanate curing agent serves as the core, and the polyurethane prepolymer of which the NCO terminal group is blocked by the blocking agent serves as the shell; or mixing and emulsifying a prepolymer of which the NCO terminal group is blocked by a blocking agent and non-water-soluble polyamine, thereby obtaining the water-based polyurethane adhesive, wherein the non-water-soluble polyamine serves as the core, and the polyurethane prepolymer of which the NCO terminal group is blocked by the blocking agent serves as the shell. According to the water-based polyurethane adhesive disclosed by the invention, the double components are stably stored under the mixing condition at normal temperature, the construction process is simple, the manual labor is not consumed compared with the conventional double-component polyurethane due to the operations of mixing and metering, and hazards of release of the blocking agent on the environment can be controlled.

A conductively cooled high-repetition single frequency Nd: YAG Laser is disclosed. An improved resonance detection method is used to obtain an injection-seeded single frequency pulse laser. A laser resonator is a u-shaped cavity, which uses two high peak power LD to pump a laser crystal from ends. High-precision TEC is used to control the temperature of the laser crystal. With changes of applied voltage on piezoelectric ceramics, seed lights reflected twice from a Brewster angle polarizing sheet interfere with each other. Interference signals received by photodiodes are processed by a sequential control system and when there is a maximum value, Q-witch is opened by the sequential control system. And then a close-to-diffraction-limited single-rate pulse laser is output. According to changes of light extraction time, system can give a negative feedback so that a cavity length can be maintained stably. The invention possesses a high-repetition frequency, high energy, conduction cooling, narrow linewidth, high frequency stability, and a compact structure and can work stably.

The invention discloses a method for dynamically and concurrently detecting record groups with completely same contents from the data of a plurality of information sources in a concentrated way. In the method, each original record or alternation record is read from the data of the plurality of information sources in a concentrated way; the Hash codes and inspection codes of each record are calculated by the hash function and the inspection function code function built by the invention according to the inherent fields of the records; moreover, a group of buckets shared by the data sets of all the information sources and the relevant information of the buckets are dynamically established and modified; and repeated record groups distributed in each information source are quickly detected. The method has the advantages of high efficiency, high accuracy, and high utilization rate of memory resources; moreover, the method can also dynamically implement increment detection.

The invention relates to an intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection. A resonance detection method is used for obtaining 1064nm single-frequency pulse laser for seed injection is obtained and 532nm single-longitudinal-mode pulse laser is obtained through intracavity frequency doubling. A laser resonant cavity is a U-shaped cavity. Two high-peak-power laser diodes (LD) are used for pumping laser crystals from an end surface, a high-precision thermoelectric cooler is used for controlling the temperature of the laser crystals and green light output is obtained through intracavity lithium triborate (LBO) frequency doubling. The intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection has the characteristics of high efficiency, high energy, conduction cooling, narrow line width, high frequency stability, compact structure and high working stability.

The invention discloses a method for producing metal fiber blended yarn. First, drawing of textile fiber rods and metal fiber rods is carried out; the proportion by weight of the metal fiber is 2.9%-3.2% after the drawing; and then the metal fiber blended yarn is formed through the process of tearing up, opening, scutching and coiling, cotton carding, drawing and spinning of the drawn textile fiber rods and metal fiber rods. The method can be completely applied to production, and is convenient in application and easy in operation; metal fibrous raw materials are not liable to fall off during the production, and the content of the metal fiber is easy to control; and the produced metal fiber blended yarn has the advantages of high strength, low yarn unevenness, less hairiness, less yarn faults and good shielding performance, and meets the requirements of garment fabrics.

The invention discloses a universal auxiliary welding device for microwave antennas, and belongs to auxiliary welding devices. By the universal auxiliary welding device, problems that component parts of a microwave antenna cannot be completely fixed by the aid of an existing auxiliary welding device, and the existing auxiliary welding device is poor in universality are solved. The universal auxiliary welding device is characterized in that a support of the universal auxiliary welding device can transversely move along a base and can be fixed, a center hole and positioning holes are formed in an adjusting disc connected with the support, and the positioning holes are circumferentially and uniformly distributed; a rotary shaft penetrates the center hole of the adjusting disc and a longitudinal shaft hole of the support, and positioning dowels are arranged at two ends of a transverse positioning rod of the rotary shaft; one end of a sliding plate penetrates the rotary shaft, and pressure plate screws at the other end of the sliding plate are connected with a lower pressure plate and an upper pressure plate; a clamp plate can longitudinally move along the base and can be fixed, a longitudinal clamping opening and a horizontal transverse sliding groove are formed in the clamp plate, and a push pin is arranged in the transverse sliding groove. The universal auxiliary welding device has the advantages that the height and an angle of the universal auxiliary welding device can be adjusted conveniently, so that the universal auxiliary welding device is adaptable to dimensional and angular difference among different types of microwave antennas, various parts of components of the antennas can be completely constrained, the radiating performance is excellent in a welding procedure, and accumulated solder paste can be cleaned conveniently after welding.

The embodiment of the invention discloses a mail attachment automatic previewing method. Content of a mail attachment is decoded by a mail server, converted into a picture format, inserted into an original mail again, sent to a client terminal and presented to a user. The embodiment of the invention further discloses a mail attachment automatic previewing system. According to the mail attachment automatic previewing method and system, the user can preview the content of the attachment without downloading the attachment and can completely get rid of limitation of a browser, and the mail attachment automatic previewing method and system are suitable for meeting the requirements for receiving, sending and previewing mails of various mobile terminals.

The invention relates to a pleurotus ostreatus culture medium containing ramie bone powder, and a pleurotus ostreatus cultivation method. The method comprises the following steps: the preparation of a pleurotus ostreatus culture medium, inoculation, spawn running, fruiting and harvesting by the stubble, wherein the preparation of the culture medium comprises the steps of preparing raw materials, bagging and sterilizing the obtained product; the components of the culture medium are: 70 to 80 percent of ramie bone powder, 17 to 27 percent of rice bran, 1 to 1.5 percent of light calcium carbonate, 1 to 1.5 percent of sucrose and 0.1 to 0.2 percent of dipotassium hydrogen phosphate; the culture medium is sterilized, cooled to less than or equal to 30 DEG C, inoculated with pleurotus ostreatus strain and cultivated for 25 to 30 days at 22 to 28 DEG C at relative air humidity of 80 to 90 percent so as to allow a bag to be full of grown mycelium; cultivation is continued at 18 to 26 DEG C at relative air humidity of 85 to 95 percent so as to allow pleurotus ostreatus to grow; and the pleurotus ostreatus is harvest by the stubble. The method increases yield by 40 to 50 percent compared with the prior pleurotus ostreatus cultivation art; the cost of the culture medium used in the method is about 80 percent lower than that of cottonseed hulls; and the problems of difficult returning of ramie bone, environmental pollution of incineration and the like can also be solved.

The invention discloses a multifunctional body-building device comprising a couch body and at least one of an elbow and arm up-down motion mechanism, a leg up-down motion mechanism, a heel forth-back push-pull motion mechanism, a couch plate up-down motion mechanism, a couch plate forth-back motion mechanism, a couch plate left-right swing mechanism and a couch plate left-right rotating mechanism driven by a motor. The couch body comprises a couch plate and a couch frame. The invention enables people to actively select various combined motion modes of lifting and extension movements of wrists and legs or / and forth-back push-pull of feet by swinging or vibrating the couch plate in a passive state so that skeletons of the whole body, muscles and vital organs can take part in movements, the blood circulation is promoted, the sleep quality is improved, the human immunity is enhanced, and the purpose of body building is achieved. By using the product, the effects on reducing the blood sugar and the blood grease and treating the fatty liver can be achieved. The invention is suitable for families, gymnasiums, hospitals and other places and used for enabling the body to selectively make comprehensive passive movements in a dorsal position.

The invention discloses a demodulation circuit used in a passive ultrahigh frequency radio-frequency identification label chip, and the circuit comprises an envelope detection circuit, a voltage limiting circuit, a low-pass filter circuit, a reference level generation and comparison output circuit. All are in series connection in the order as they are listed aforementioned. The envelope detection circuit of the invention adopts the method of active envelope detection to restore a baseband signal modulated on a high-frequency carrier wave, and the restored envelope signal is limited to the common-mode input range of the latter-stage circuit through the voltage limiting circuit, and then through the low-pass filter circuit, noise signals in the filter high-frequency carrier wave and the environment are filtered before being transmitted to the reference level generation and comparison output circuit where they are compared to the reference level. Following that, digital signals are outputted for digital baseband processing. With high sensitivity yet low power consumption, the circuit is also small in size.

The invention provides an automatic startup and shutdown device of a mobile phone. The device comprises a base (1), a transverse sliding rail (2), a longitudinal sliding rail (8) and a key control device, wherein the transverse sliding rail (2) is parallel with the longitudinal sliding rail (8), so that a sliding block (6) of a fixture freely moves in the X direction and the Y direction; the key control device comprises the longitudinal sliding rail (8), a lifting guide rail (11) and a horizontal guide rail (14). Because of the structure, a horizontal key (16) can move in the X direction and the Z direction, a vertical key (17) can move in the X direction, the Y direction and the Z direction, the device is matched with the fixture of the mobile phone to move in the X direction and the Y direction, and startup motion testing is completed. The fixture is flexible to modulate according to the size and applicable to mobile phones of various sizes (including ultrathin large sizes) and types (flip phones and bar phones), and the mobile phone can be placed horizontally and vertically. A manipulator moves in the X direction, the Y direction and the Z direction through an electromagnet, and the requirements for mobile phone sizes and key positions are met.

The invention discloses a preparation method of a display panel. The preparation method of the display panel is used for solving the problem in the prior art that an area where the thickness of film is uneven is wide when an ink jet type printing mode is adopted to manufacture alignment film of the display panel. The preparation method of the display panel comprises manufacturing a color film substrate underlay on one side, facing an array side substrate, of the lower portion of a color film substrate; manufacturing a film even-thickness area and a film uneven-thickness area of first alignment film below the color film substrate underlay by using different temperatures of solidification or alignment liquid with different viscosity; manufacturing a thin film transistor substrate underlay on one side, facing the color film side substrate, on the upper portion of the array side substrate; and manufacturing a film even-thickness area and a film uneven-thickness area of second alignment film on the thin film transistor substrate underlay by using different temperatures of solidification or alignment liquid with different viscosity.

The invention relates to a silicon vanadium steel plate with promoted bulletproof performance and a manufacturing method. The bulletproof performance means the capacity of the silicon vanadium steel plate to resist against bullet shooting or glass breaking. The silicon vanadium steel plate can meet the practical requirements of stability and light weight. The silicon vanadium steel plate comprises the following chemical elements by weight percent: 0.28-0.43% of C, 0.3-2.0% of Si, 0.3-1.0% of Mn, 0.3-1.5% of Cr, 0.3-3.0% of Ni, 0.1-0.6% of Mo, 0.03-0.12% of V, not more than or equal to 0.03% of inevitable impurities and the balance of Fe.

The invention relates to a high-liquidity high-glossiness flame retardant toughened polypropylene material and a preparation method thereof. The material comprises the following components in parts by weight: 100 parts of polypropylene, 5-10 parts of a toughening agent, 1-5 parts of graft, 10-20 parts of high-glossiness barium sulfate, 10-14 parts of a flame retardant, 5-7 parts of an auxiliary flame retardant, 0.05-0.2 part of a nucleating agent, 0.2-0.4 part of an antioxidant, 0.2-0.4 part of a surface treating agent, 0.2-0.5 part of a dispersing lubricant and 0.03 part of a fluorescent whitening agent. The preparation method comprises the following steps: firstly, mixing the surface treating agent, the dispersing lubricant, the high-glossiness barium sulfate, the flame retardant and the auxiliary flame retardant; then, mixing the polypropylene, the toughening agent, the graft, the nucleating agent, the antioxidant and the fluorescent whitening agent with the mixture; and finally, extruding and pelletizing. The material prepared by the preparation method disclosed by the invention has high glossiness, high impact, high liquidity and flame resistance, and is suitable for requirements of household appliances; meanwhile, compared with the acrylonitrile-butadiene-styrene copolymer, the high-liquidity high-glossiness flame retardant toughened polypropylene material is low in price.

The invention discloses a pump and an automatic putting system provided with the same. The pump comprises a power source capable of rotating forwardly or reversely to output power, a pump body and at least two clutch mechanisms, wherein the pump body is provided with at least two pump cavities, and each pump cavity is correspondingly provided with a pump cavity driving assembly; the clutch mechanisms are in one-to-one correspondence with the pump cavities and are connected with the pump cavity driving assemblies of the corresponding pump cavities. When the power source rotates forwardly or reversely to output power, at least one clutch mechanism is in a power connection state, at least one clutch mechanism is in a power separation state, and the power source transmits the power to the corresponding pump cavity driving assemblies through the clutch mechanisms in the power connection state to make the corresponding pump cavities work. The pump can achieve the function that a single power source drives multiple pump cavities to work, and is high in integration degree, good in reliability, convenient to install, capable of saving energy and low in manufacture cost.