28results about How to "Guaranteed volume" patented technology

The invention discloses a silicon-carbon composite material and a preparation method thereof, a pole piece and a battery. The silicon-carbon composite material comprises a cluster structure and a third carbon layer coating the cluster structure, wherein the cluster structure comprises a plurality of silicon-carbon composite particles, pores are distributed among the plurality of silicon-carbon composite particles, each silicon-carbon composite particle has a core-shell structure, each silicon-carbon composite particle comprises an inner core and an outer shell coating the inner core, each outer shell sequentially comprises a first carbon layer and a second carbon layer in the direction far away from the inner core, the first carbon layer comprises a conductive carbon material with a three-dimensional structure, an annular gap exists between the second carbon layer and the first carbon layer, and the inner core comprises porous silicon nanoparticles. The battery prepared from the silicon-carbon composite material has excellent electrochemical performance.

The invention provides a vacuum devolatilization device which comprises a vertical container, the container is provided with an extraction opening and a material inlet, the upper part of the container is provided with a melt pressure chamber, and the melt pressure chamber is communicated with the material inlet; the devolatilization device is provided with at least one falling film pipe, the inner wall surface of the falling film pipe is a material falling film flowing contact surface, a vacuum chamber is arranged above the melt pressure chamber in the container, and the extraction opening is formed in the vacuum chamber; and a gas phase channel pipe is arranged at the upper end of the falling film pipe, penetrates through the melt pressure chamber and is communicated with the vacuum chamber. The vacuum-pumping effect can be improved, interference of volatile component gas on material falling film flowing is reduced, and meanwhile the inner component is compact in structure and easy to industrially amplify.

The invention discloses a creep-resistant magnesium alloy and a preparation method thereof, and belongs to the technical field of magnesium alloy preparation, the creep-resistant magnesium alloy comprises a smelting furnace and a cover plate, the bottom of the smelting furnace is provided with a turnover mechanism, one side of the top of the cover plate is provided with a feeding port, a circular screen plate is horizontally arranged in the smelting furnace, and stirring blades are uniformly fixed to the bottom of the circular screen plate in the circumferential direction; a buffering mechanism connected with the circular screen plate is arranged in the middle of the top of the cover plate, and a rotating mechanism for controlling the circular screen plate to rotate is arranged on one side of the top of the cover plate. According to the smelting furnace, the circular screen plate is horizontally arranged in the smelting furnace, metal ingots can be supported, buffering can be conducted in the feeding process of the metal ingots in cooperation with a buffering mechanism composed of a sleeve, a sliding rod, a transverse rod, a strip-shaped groove, a first spring and a second spring, and therefore damage to a crucible in the smelting furnace is reduced; and the adding speed of the metal ingot is increased, and then the smelting speed is increased.

The utility model discloses a wire rod multi-pass distributor with a safety structure, which relates to the field of multi-pass distributors and comprises a distributor body, a negative connector and two positive connectors are arranged in the distributor body, a groove is arranged on the surface of the distributor body, the inside of the groove is communicated with the positions of the positive connectors, and the negative connector is connected with the two positive connectors. A groove is formed in the distributor body, a plug-in type fuse assembly is plugged in the groove, a packaging sleeve is fixedly installed on the surface of the distributor body, and the plug-in type fuse assembly is installed in the packaging sleeve. According to the wire rod multi-pass distributor with the safety structure, the protection sleeve, the packaging sleeve and the insertion piece type fuse assembly are arranged, when the wire rod multi-pass distributor is used, the insertion piece type fuse assembly is inserted into the groove, through the safety structure of the distributor body, the wire rod multi-pass distributor is more convenient to use, and meanwhile the protection sleeve is connected to the surface of the packaging sleeve in a sleeved mode. The protection sleeve is fixed on the surface of the packaging sleeve through friction force, and the protection sleeve protects the plug-in type fuse assembly, prevents the plug-in type fuse assembly from being damaged accidentally, and prevents the plug-in type fuse assembly from falling off to a certain extent.

The utility model discloses a dust removal device, which relates to the technical field of dust removers and comprises a dust remover shell, the bottom end of the dust remover shell is provided with the dust remover shell, the side edge of the dust remover shell is provided with an air inlet, and the outer wall of the dust remover shell is provided with a motor. The output end of the motor extends into the dust remover shell and is connected with a first rotating shaft, and the other end of the first rotating shaft is connected with the inner wall of the dust remover shell through a bearing. According to the dust remover, the motor and the stirring piece are arranged, in the using process, the stirring piece can be driven by the motor to continuously rotate in the dust falling opening in the bottom end of the air inlet so that falling dust can be stirred, the threaded sleeve and the impact plate are arranged, and in the forward and reverse rotation process of the motor, the dust can be prevented from falling off. And the impact plate can be driven to intermittently impact the inner wall of the ash bucket, so that dust attached to the inner wall of the ash bucket can be knocked off, and relatively humid dust is prevented from being attached to the inner wall of the ash bucket all the time and caking.

The embodiment of the utility model discloses an iris acquisition and recognition device and iris acquisition and recognition terminal equipment. According to one specific embodiment, the iris acquisition and recognition device comprises a telescopic device body and a camera assembly, the telescopic device body comprises a telescopic device sleeve and a telescopic device inner core, and the telescopic device inner core is telescopically embedded into the telescopic device sleeve; the camera shooting assembly is arranged in the telescopic device inner core, the camera shooting assembly comprises a main board, a lens and an infrared lamp assembly, and the telescopic device inner core comprises an external interface and a light supplementing lamp cover plate assembly; in the contraction state, the camera shooting assembly and the telescopic device inner core are embedded into the telescopic device sleeve; in the extending state, the camera assembly and the telescopic device inner core partially extend out of the telescopic device sleeve. According to the iris acquisition and recognition device, the portability of the iris acquisition and recognition device can be improved, and a user can use the iris acquisition and recognition device more conveniently.

This invention relates to the field of wireless charging technology, and more particularly to a wireless charging system and application method. The system includes: m inverters, m-1 RIITs, and a transmitting coil at the GA end; and n first rectifiers, n-1 corresponding RIITs for the first rectifiers, q second rectifiers, q corresponding RIITs for the second rectifiers, and a receiving coil at the VA end. The outputs of the n first rectifiers are connected in parallel to output power to the high-voltage battery; the outputs of the q second rectifiers are connected in parallel to output power to the low-voltage battery. Both the high-voltage and low-voltage batteries are powered through the receiving coil at the VA end. By setting the operating state of the rectifiers, the charging mode can be changed, achieving decoupled control of charging the high-voltage and low-voltage batteries. This invention effectively reduces the size and cost of the charging structure at the VA end, and by adjusting the number of inverters and rectifiers, it can accommodate different power requirements.

A unit base structure integrated with a lubricating system comprises main beams, the two main beams are supported and connected through a plurality of spaced cross beams, an oil pump mounting plate is welded to the outer end face of the main beam located at one end, a pre-supply oil pump and an oil supplementing pump are fixed to the oil pump mounting plate, and a flange cover plate is installed on the outer end face of the main beam located at the other end through a sealing gasket and a fastener. The interiors of the left main beam and the right main beam are hollow structures and are filled with oil, the left main beam serves as an auxiliary oil tank, and the right main beam serves as a new oil tank; the upper portion of the engine oil pan is communicated with the interior of the auxiliary oil tank through an overflow pipe, an engine oil level sensor is installed beside the engine oil pan, the lower portion of the engine oil pan is communicated with the interior of the auxiliary oil tank through an oil pre-supply pump, and the auxiliary oil tank and the new oil tank are connected to an oil supplementing pump at the same time; and the engine lubricating oil pump pumps oil from an engine oil pan to supply lubricating oil to the engine, so that the occupied space is greatly saved, the oil tank is convenient to maintain, and the working reliability is good.

Embodiments of the present application provide an electronic device, comprising a display module, a frame, a back cover, a decoration assembly, a battery and a circuit board, the display module and the back cover are arranged on opposite sides of the frame, the back cover and the frame are integrally formed, the back cover comprises a first cover body and a second cover body, the first cover body and the second cover body are arranged side by side along a first direction, the decoration assembly is arranged in extension along a second direction and is arranged in layers along a third direction on a side of the first cover body away from the display module, the battery is arranged on a side of the first cover body adjacent to the display module, and the circuit board is arranged on a side of the second cover body adjacent to the display module. By integrally forming the back cover and the frame, the internal accommodation space of the electronic device can be effectively improved, and by arranging the battery and the circuit board side by side, the thickness of the electronic device can be effectively reduced.

The utility model discloses a vertical full-automatic filling and packaging machine, which relates to the technical field of filling and packaging, and comprises a stock bin, a first-stage electric push rod and a plurality of material injection components, each material injection component comprises a first-stage charging barrel, a second-stage charging barrel, a material sliding pipe, a joint sleeve, a third-stage electric push rod, a second-stage electric push rod and a material injection pipe, the joint sleeve is located at the joint of the first-stage charging barrel, the sliding pipe and the second-stage charging barrel, the sliding pipe is communicated with the interior of the stock bin, the number of the material injection pipes is two, and a middle sliding pipe is installed between the two material injection pipes in a sliding mode; an air-blowing expansion auxiliary mode is adopted, and the air-blowing expansion auxiliary mode is characterized in that a container is filled with a rubber sleeve subjected to air-blowing expansion, the rubber sleeve is in a continuous reset process in the powder blowing process, and the purpose is that on the basis that powder blowing is not interfered, the shape change of the rubber sleeve is used for adapting to the powder blowing volume; and the purposes of preventing the powder from flying dust, wasting and polluting the working environment are achieved.

The reversing horn comprises a horn body (3), the horn body (3) is installed in a horn inner shell (2), the horn inner shell (2) is installed in a horn outer shell (1), a waterproof sound amplifying cover (1.3) with the opening end facing the horn body (3) is installed in the horn outer shell (1), and a horn sound amplifying opening (2.1) of the horn inner shell (2) is inserted into the waterproof sound amplifying cover (1.3). A rear cover (4) is installed on the tail portion of the loudspeaker outer shell (1), and the loudspeaker body (3) is contained in a sealing cylinder (4.3), inserted into the loudspeaker outer shell (1), on the rear cover (4). According to the reversing horn disclosed by the invention, the perfect solution of waterproof and sound amplification effects is realized in a compact structural design through a brand new design.

The utility model relates to the technical field of air conditioners, in particular to a shell assembly and an air conditioner, the shell assembly comprises a shell, a side air outlet piece and an air deflector, the shell is provided with an air outlet, the side air outlet piece is arranged on the shell and is adjacent to at least one side of the shell, and a side air outlet is formed between the side air outlet piece and the shell; the air deflector is movably connected with the shell between a first position and a second position, air in the shell is at least discharged from the side air outlet in the length direction of the air deflector at the first position, and air in the shell is at least discharged from the side air outlet in the length direction of the air deflector at the second position. And air in the shell is discharged from the side air outlet, at least one side of the air deflector in the width direction and at least one side of the air deflector in the length direction. According to the shell assembly, side air outlet of the shell assembly can be achieved, the volume of the heat exchange air duct in the shell assembly is guaranteed, and the air outlet effect is improved.

The invention relates to the technical field of quantitative feeding, in particular to a quantitative feeding device for a compression molding machine. Comprising a base and a quantitative shunting block, a material channel is arranged in the quantitative shunting block, the feeding end of the material channel is connected with a feeding mechanism, the discharging end of the material channel is connected with a discharging mechanism, the discharging mechanism is provided with a discharging valve, and the top of the quantitative shunting block is provided with a quantitative tank and a buffer tank which are communicated with the material channel; a first driving hydraulic cylinder and a second driving hydraulic cylinder are respectively arranged at the tops of the quantitative tank and the buffer tank; the steering hydraulic cylinder is used for controlling the mandrel to enter and exit from the through hole and controlling the flowing direction of materials in the material channel, so that the materials enter the quantitative tank to be quantified or enter the buffer tank to be temporarily stored, non-stop feeding can be achieved, and abrasion to equipment is reduced; the ascending height and the descending height of the first extrusion plate are determined through the electronic measuring scale, so that the volume of materials in the quantitative tank is ensured to be constant, precise quantitative feeding is realized, and the stability of product quality is ensured.

The invention provides a falling film type devolatilization device which comprises a vertical container, a melt pressure chamber is arranged on the upper portion of the container, a discharging chamber is arranged at the bottom of the container, the melt pressure chamber is communicated with a material inlet, the discharging chamber is provided with a material outlet, and the vertical container is provided with a heat exchange chamber between the melt pressure chamber and the discharging chamber. The devolatilization device is provided with a plurality of falling film pipes, the inner wall surfaces of the falling film pipes are material falling film flowing contact surfaces, the diameter of the inscribed circle of each falling film pipe is 50-300 mm, and the falling film pipes penetrate through the heat exchange chamber; the lower end of the falling film pipe is communicated with the blanking chamber; a circle of multiple film distribution holes are formed in the inner side of a pipe opening in the upper end of the falling film pipe in the circumferential direction, the diameter of the inscribed circle of each film distribution hole ranges from 2 mm to 15 mm, and the length-diameter ratio L / D of the length L of each film distribution hole to the diameter D of the inscribed circle ranges from 2 to 15. And the melt pressure chamber is communicated with the falling film pipe through the film distribution holes. According to the invention, the film-forming flow uniformity of materials in the equipment is good, the heat and mass transfer efficiency is high, and the internal components are compact in structure and easy to industrially amplify.

The utility model discloses a coal taking device of being favorable to improve the sampling representativeness of factory coal, it includes the sampling tube of coal taking machine, be equipped with screw rod in the sampling tube, be equipped with sampling box on the sampling tube upper end, sampling box lower extreme and upper end are equipped with sample discharge gate and sample feed port respectively, sample feed port with sampling tube intercommunication, be equipped with the feed port size adjusting device for adjusting the feed quantity at sample feed port, the utility model is favorable to improve the sampling representativeness, and the objective reaction factory coal quality.

The invention belongs to the technical field of aircraft sensor design, and discloses a compact temperature and pressure composite sensor, which optimizes the layout of a pressure core body and a platinum resistor by designing a pressure core body placing cavity I and a pressure leading hole on a mounting sleeve into an eccentric structure and designing a platinum resistor placing cavity II and a lead hole into a bevel design. On the premise that the structural strength of a product is guaranteed, the size of the product is compressed to the maximum extent, miniaturization and light weight of the composite sensor can be achieved, and certain environmental adaptability is achieved.

The utility model discloses an automatic clamp for OWS earphone testing, which relates to the field of earphone production and comprises a bottom plate, a substrate, a jig and a detection mechanism, the substrate is slidably arranged, the jig is arranged on the substrate, a workpiece groove is arranged on the upper surface of the jig, a second through groove is arranged at one end of the jig, a third through groove is arranged at one end of the substrate, and the workpiece groove is communicated with the second through groove through a sound hole. The detection mechanisms are arranged at the detection stations, each detection mechanism comprises a telescopic device and a detection unit, the upper end and the lower end of each telescopic device are arranged on the corresponding detection unit and the bottom plate respectively, and the telescopic direction of each telescopic device is inclined relative to the sliding direction of the base plate and the plane where the bottom plate is located; when the substrate is located at the detection station, the upper end of the detection unit is arranged in the second through groove, and the detection unit penetrates through the third through groove. The telescopic device can extend to send the detection unit into the second through groove, the distance between the detection unit and the earphone is reduced, and it is guaranteed that the volume of sound collected by the detection unit meets the detection requirement.

The present invention relates to the technical field of air compressors, and in particular to an oil supply device for an air compressor, comprising an oil tank, an oil pump, an oil filter device and a cooler installed on the air compressor, the oil filter device comprising a reversing seat, a first installation cavity and a second installation cavity being arranged in the reversing seat, an oil inlet pipe being coaxially arranged at one end of the first installation cavity, an oil outlet pipe being coaxially arranged at one end of the second installation cavity, auxiliary oil outlets being arranged on both sides of the first installation cavity, and auxiliary oil inlets being arranged on both sides of the second installation cavity, the oil filter device also comprises a main oil filter and an auxiliary oil filter, the main oil filter and the auxiliary oil filter are respectively connected with the auxiliary oil outlet and the auxiliary oil inlet located on the same side of the reversing seat; the oil inlet pipe and the oil outlet pipe are both provided with connecting pipes extending radially along their own axes, and the reversing seat is provided with a driving unit. The technical solution rotates the oil inlet pipe and the oil outlet pipe in the reversing seat through the driving unit to change the flow direction of the lubricating oil, thereby realizing the replacement of the filter element in the main oil filter without stopping the machine.

The utility model discloses a dish-washing machine which comprises a dish-washing inner container and a hanging frame arranged in the dish-washing inner container, the hanging frame comprises a supporting rod and a support body arranged on the supporting rod, and the dish-washing machine is characterized in that the support body comprises a lock catch, a lock hook and a telescopic rod used for hanging objects to be cleaned, and the lock catch is connected to the supporting rod; and the lock hook is matched with the lock catch to arrange the telescopic rod. Compared with the prior art, the dishwasher has the advantages that the hanging frame with the telescopic rod is arranged on the dishwasher and can be used for hanging cleaning cloth and other objects to be cleaned, and the function of cleaning the cleaning cloth on the dishwasher is achieved; the hanging rack is arranged on the top wall of the dish washing liner, occupies small space, keeps the original size of the dish washing machine, and avoids increasing the occupied space due to adding of a cleaning cloth cleaning function.

This invention specifically relates to a thermal insulation fabric and its preparation method. The thermal insulation fabric comprises the following raw materials in parts by weight: 70-90 parts of ethylene-vinyl acetate copolymer, 2-12 parts of polyethylene, 3-10 parts of polyolefin elastomer, and 3-10 parts of thermoplastic polyurethane, or further comprising 4-10 parts of ethylene propylene diene monomer (EPDM) rubber, 6-12 parts of foaming agent, and 0.5-5 parts of additives. For different formulation characteristics, supercritical physical foaming process and chemical foaming process are provided respectively. The supercritical process uses nitrogen and carbon dioxide as foaming agents, which is environmentally friendly and leaves no residue; the chemical foaming process ensures uniform dispersion of components through mixing and refining, and has strong process adaptability.

The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle for processing liquid seasoning, which comprises a reaction component, an adding structure and stirring equipment, the reaction component comprises a reaction kettle and a top ring fixed at the top end of the reaction kettle, and a circle of rotating groove is arranged on the inner side wall of the top ring. The adding structure comprises a positioning ring, a rack and a positioning plate fixed to the rack, the top end of the top ring is fixed to the positioning ring, a rotating motor is fixed to one side of the positioning ring, the rack is arranged in the rotating groove in a sleeved mode, and multiple sets of charging barrels are fixedly inserted into the positioning ring. The rotating motor at the top end can drive the rotating teeth and the rack to rotate, the vacant positioning plate groove body is rotated to one side to be installed with the prepared charging barrel, opening and closing are achieved through the electromagnetic valve at the bottom, and it is guaranteed that the volume of the material added into the reaction kettle meets the proportion.

The utility model provides a quick dissolving device for powdery traditional Chinese medicinal materials, and relates to the technical field of medicinal material dissolution. The quick dissolving device for the powder traditional Chinese medicinal materials comprises a dissolving tank and a sealing cover, and the sealing cover is in threaded connection with the top of the dissolving tank. According to the rapid dissolving device for the powder traditional Chinese medicinal materials, the lifting and dispersing assembly is arranged in the dissolving tank, so that the powder traditional Chinese medicinal materials gathered at the bottom of the dissolving tank can be lifted in the dissolving tank, and the powder traditional Chinese medicinal materials are dispersed to the periphery of the interior of the dissolving tank when the powder traditional Chinese medicinal materials reach the vertex; meanwhile, the transmission assembly is used for driving the stirring assembly located on the outer side of the lifting and dispersing assembly to rotate while performing revolution, the dispersed powder traditional Chinese medicinal materials can be rapidly stirred, the powder traditional Chinese medicinal materials can be prevented from being accumulated at the bottom of the dissolving tank, the dissolving efficiency is improved, a driving device can be prevented from being additionally arranged on the outer side of the device, and the cost is reduced. The original size of the equipment is kept while the manufacturing cost of the equipment is reduced, and practical application is facilitated.

The utility model discloses a digestion disc with a condensation structure, which comprises a mounting bracket, a box body is arranged above the mounting bracket, bakelite heat-insulating plate layers are arranged on the inner side edges of the box body, a heating film is arranged between the bakelite heat-insulating plate layers and on the inner bottom surface of the box body, an aluminum alloy heat-conducting plate is arranged above the heating film, and the aluminum alloy heat-conducting plate is arranged above the aluminum alloy heat-conducting plate. A test tube bottom placing layer is arranged above the aluminum alloy heat conduction plate, a test tube position control support is arranged above the test tube bottom placing layer, a heat insulation box body is arranged above the test tube position control support, and the test tube bottom placing layer, the test tube position control support and the heat insulation box body are connected through fixing copper columns; the temperature above the test tube is reduced through the cold water tube, so that the temperature below the test tube is not influenced, the temperature above the test tube is reduced, the evaporation capacity of a sample in the test tube is reduced, the volume of the sample in the test tube is kept, the concentration change of a tested substance is reduced, and a test value is more stable.

The invention provides a semiconductor three-dimensional deposition process simulation method and device and electronic equipment, and relates to the technical field of semiconductor simulation, and the method comprises the steps: extracting a level set curved surface of an initial substrate from a sign function with distance of an initial computational domain through a three-dimensional contour surface extraction algorithm; respectively constructing a closed air volume boundary of a new air area and a closed deposition volume boundary of a new deposition material area based on the level set curved surface; and gridding the closed air volume boundary and the closed deposition volume boundary, and stitching the generated grids back to the initial computational domain to obtain a three-dimensional deposition result which is used for accurately extracting the three-dimensional deposition result.

The utility model belongs to the technical field of vehicles, and particularly relates to a vehicle frame with a motor mounting component, which comprises a vehicle main frame, a motor mounting component and a motor mounting component. The rear bottom fork is hinged to the main frame; the motor mounting component is mounted in the main frame on the rear side of the accommodating area and is positioned in front of the rear fork; the motor installation assembly comprises an installation frame, an arc-shaped motor installation position is arranged on the installation frame, and the upper end and the lower end of the installation frame are each provided with a fixing part; the fixing rod is arranged in the fixing part in a penetrating mode, and the fixing rod is connected to the vehicle main frame; the motor installation assembly does not occupy the containing area, the unsprung weight of the rear wheel cannot be increased, the endurance of the vehicle is improved, and the damping effect of the rear wheel and the riding comfort are guaranteed.

The contactor with the surge suppression module comprises a base, a coil assembly and the surge suppression module, the coil assembly and the surge suppression module are arranged in the base, the surge suppression module comprises a circuit board and an electronic component arranged on the circuit board, the base is provided with a first slot, an upper opening and a side opening, and the upper opening and the side opening are communicated with the first slot. The upper opening is used for inserting a circuit board, and two sides of the side opening are provided with bosses which are arranged on the base and abut against the edge of the circuit board. Compared with the prior art in which the surge suppression module is fixed on the contactor shell, the surge suppression module is small in occupied space and faster and more convenient to install.

The utility model discloses a high-low rail 30-degree oblique angle tool turret numerical control lathe, and relates to the technical field of numerical control lathes, the high-low rail 30-degree oblique angle tool turret numerical control lathe comprises a base, a main shaft assembly and a tool turret assembly, one side of the main shaft assembly is provided with a discharging mechanism, the discharging mechanism comprises a discharging groove and a machine tool water tank, the discharging groove is formed in the top of the base, and the machine tool water tank is arranged in the discharging groove. The machine tool water tank is arranged on the lower side of the top of the base and located under the discharging groove. A filter frame is inserted into a top opening of the machine tool water tank, and a filter screen is fixedly connected to a bottom opening of the filter frame; waste cutting fluid flows to the two sides from the middle of the filter screen, so that metal chippings remain at the top of the filter screen and are prevented from being deposited in the machine tool water tank massively, and therefore the normal volume of the machine tool water tank and normal work of equipment are guaranteed. And the shape of the filter screen is arranged, so that the waste cutting fluid can conveniently flow on the filter screen and is prevented from being massively accumulated at a certain position at the top of the filter screen, and the filtering effect is ensured.

The application provides a winding device for hydrogen storage cylinders, which comprises a bottle head clamping mechanism, a bottle tail adsorption mechanism arranged opposite to the bottle head clamping mechanism, a line releasing and winding mechanism arranged on one side of the arrangement direction of the bottle tail adsorption mechanism and the bottle head clamping mechanism, a bottle rotating driving mechanism with a power output end connected with the bottle tail adsorption mechanism, and a fiber laying guide mechanism arranged on one side of the line releasing and winding mechanism. The bottle tail adsorption mechanism and the bottle head clamping mechanism form a two-point fixing pattern of front and back, and the fiber laying guide mechanism drags the fiber to realize high-precision reciprocating linear motion, which is coordinated with the rotating motion of the cylinder to realize accurate control of the winding position, the laying angle and the interlayer transition, so that the winding line is uniformly and stably arranged on the outer surface of the hydrogen storage cylinder without defects such as overlapping, gap or uneven density, and the quality and the uniformity of the winding line are improved.