33results about How to "Guaranteed molding" patented technology

The invention relates to the technical field of electroslag remelting slag. The invention discloses a special slag system for an ingot pulling type electroslag remelting nitrogen-controlled austenitic stainless steel ingot, which comprises the following components in percentage by mass: 45-50% of CaF2, 25-30% of Al2O3, 15-20% of CaO, 3-6% of MgO, 5-10% of SiO2 and the balance of impurities, and the content of the impurities is less than or equal to 1%. The binary alkalinity CaO / SiO2 is 1.5 to 4; the melting point of the special slag system is 1250-1280 DEG C, the viscosity value of the special slag system at the temperature of 1600 DEG C is 0.044-0.053 Pa.s, and the resistivity of the special slag system at the temperature of 1600 DEG C is 0.51-0.55 omega.cm. According to the slag system, by optimizing the components of the slag system, the physical and chemical properties of the slag system are further improved, the slag-metal reaction is inhibited, and the production process requirements of ingot pulling type electroslag remelting large stainless steel ingots are met. The produced nitrogen-controlled austenitic stainless steel ingot is good in surface quality and free of defects such as obvious pits, slag runners and double skins; and easily oxidized elements Al and Si in the steel in the remelting process are uniformly distributed in the height direction of the cast ingot, so that the uniformity of alloy textures is ensured.

The invention provides a preparation method of coaxial aerogel fiber and temperature self-adaptive protective aerogel fabric, which comprises the following steps: weighing nano-crystalline cellulose powder and dispersing in deionized water to obtain nano-crystalline cellulose dispersion suspension, weighing phase change microcapsules and dispersing in the nano-crystalline cellulose dispersion suspension to obtain phase change microcapsules; a core layer spinning mixed solution is obtained; carrying out wet spinning on the nano aramid fiber spinning stock solution and the core layer spinning mixed solution through a coaxial spinning needle, and fully solidifying in a coagulating bath to obtain coaxial gel fibers; the coaxial gel fibers are subjected to multiple times of solvent replacement treatment, then washed to be neutral and finally subjected to freeze drying treatment, and the coaxial aerogel fibers are obtained. According to the fabric, the phase change microcapsules are perfectly wrapped in the aerogel fibers, and the fabric has good heat insulation performance, good mechanical performance, excellent low-temperature and high-temperature responsiveness and a good protection effect in an extreme environment.

The utility model relates to the technical field of water conservancy projects, and discloses a water conservancy constructional engineering reinforcing formwork which comprises an attaching plate and a bottom plate, a reinforcing mechanism is arranged on the edge of the right side of the upper surface of the bottom plate, and an adjusting mechanism is arranged below the bottom plate. The adjusting mechanism comprises a first mounting seat and a second mounting seat positioned above the first mounting seat; the building in the water conservancy construction engineering is attached through the attaching plate, forming of the building is guaranteed, the first reinforcing block and the second reinforcing block in the reinforcing mechanism are tightly attached to the attaching plate, so that the attaching plate is tightly attached to the building in the water conservancy construction engineering, and the attaching plate is prevented from falling or inclining; and a motor in the adjusting mechanism drives an adjusting rod to rotate, and a moving frame drives a second positioning plate to rotate to be in a nearly vertical state, so that the height of a second mounting seat is increased, the situation that the reinforcing gravity center is lower due to the fact that an attaching plate is high and a reinforcing point is low, and consequently reinforcing is unstable is avoided, and the device is suitable for water conservancy buildings with different heights.

The invention provides an electromagnetic shielding film. The electromagnetic shielding film adopts a polyvinyl alcohol-water-multi-walled carbon nanotube mixed material as a film substrate, and adopts liquid metal gallium indium alloy nanoparticles as a functional filler; the liquid metal gallium indium alloy nanoparticles are embedded in the lower part of the thin film substrate and are stacked to form a functional filler layer. The electromagnetic film sample has excellent electromagnetic shielding performance, also has the advantages of flexibility, plasticity and strong mechanical performance, and can fully adapt to various use environments.

The application discloses a die flash groove structure for asymmetric forging, which can be applied to the forging of circumferential asymmetric class and axial thin-wall deep cavity forgings, can reasonably distribute materials, effectively increase the outflow resistance of the flash, improve the filling capacity of the forgings, improve the quality of the forgings, reduce material consumption and reduce production cost. The upper die and the lower die are used for being mounted on a forging press, the middle part of the upper die and the lower die forms a forging cavity, the edge part of the upper die and the lower die is provided with a flash groove, the flash groove comprises a bridge part and a bin part, the cavity is a non-symmetrical deep cavity, the bin part is horizontally arranged, and the upper end of the bridge part is outwardly inclined.

The invention discloses a ceramic glaze with corrosion resistance and a method for preparing a ceramic product by using the ceramic glaze, and belongs to the technical field of ceramics. A ceramic glaze material with corrosion resistance is composed of an inner layer material and an outer layer material, and the inner layer material comprises the following components: kaolin, quartz, zirconium carbonate, graphene, potassium feldspar, albite and 9-12 parts of boron nitride; the outer layer material comprises the following components: epoxy resin, diatomite, graphene, basalt powder, cashew nut shell oil and diisopropanolamine. And the prepared corrosion-resistant ceramic product has excellent corrosion resistance and high glossiness.

The invention belongs to the technical field of pie formulas, and discloses a beef stuffing formula and a preparation process thereof, the beef stuffing formula comprises ingredients, main materials and seasonings, the main materials comprise 67 g of TongLiao yellow cattle meat and 41 g of high-quality wheat flour, the ingredients comprise 13 g of allium fistulosum, allium mongolicum regel, caraway and fennel which are equally divided and 29 g of water, and the seasonings comprise salt, paprika powder, dried ginger powder, pepper powder and soy sauce. According to the meat pie, green Chinese onion, allium mongolicum, coriander and fennel in ingredients are added in the making process, in the meat pie, the fishy smell of meat can be removed, the overall fragrance of the pie can be improved, Tongliao yellow cattle meat is a good source of high-quality protein, and the Tongliao yellow cattle meat also contains various mineral substances such as iron and zinc and nutritional ingredients such as vitamin B family, so that the meat pie is rich in nutrition. According to the method, the pie is delicious and has nutritional value, the pie has rich and mellow meat fragrance, and the natural beef fragrance is fully diffused in the cooking process, so that the pie has rich meat fragrance, the appetite of people is greatly improved, and actual application and operation are facilitated.

The utility model discloses a rotary traction machine which comprises a machine frame, a hollow connecting shaft head and a rotary frame are connected to the machine frame, the upper end face of the rotary frame is connected with a first guide wheel assembly and a second guide wheel assembly, the lower end face of the rotary frame is connected with a third guide wheel, and a rotary motor is fixed to the inner wall of the machine frame. A rotating motor drives a connecting shaft head to rotate, a wiring motor is further fixed to the rack, a transmission wheel is connected to the portion, on the same side of the wiring motor, of the connecting shaft head through a bearing, the output end of the wiring motor is connected with the transmission wheel, a reduction gearbox is connected to the side face of the second guide wheel assembly, and the output end of the reduction gearbox is connected with the transmission wheel. According to the utility model, the second guide wheel is driven to rotate through the cooperation of the routing motor transmission wheel and the reduction gearbox, the wire feeding speed of the cable on the guide wheel is controlled, and the rotating speed of the rotating frame is controlled through the rotation of the rotating motor, so that the rotating speed of the rotating frame and the wire feeding speed of the cable are more accurate.

The invention relates to the technical field of underground engineering of energy storage engineering, and provides a one-time blasting forming method and system for excavation of a large-section compressed air energy storage gas storage. S2, determining a blasting free face according to a layering and blocking result; s3, the blasting safety explosive loading amount is determined; s4, determining a rock blasting network control mode; and S5, blasting the layered and partitioned rocks according to the blasting safety explosive load and the blasting rock network control mode. The system comprises a rock layering and blocking unit, a blasting free face determining unit, a blasting safety explosive load determining unit and a blasting rock network determining unit. The free face II is added, so that the damage to the reserved rock mass of the gas storage is greatly reduced; the explosive loading amount of a single section is controlled, and the detonation pressure is controlled; segmental delay is adopted for the detonators and is not limited by the volume and the size of a tunnel face; a parallel reserve blasting network is adopted for connection, so that the accurate blasting rate is ensured; one-time blasting forming is achieved, and the construction progress is accelerated.

The invention discloses a device and a method for preparing a metal sewing thread for a sewing machine, a sewing thread and a special sewing machine, designs a pure metal sewing thread formed by twisting and annealing seven superfine stainless steel monofilaments, adopts the special sewing machine, and can realize machine sewing; in the metal sewing thread preparation device, a whole set of sewing thread production equipment is designed, the phenomenon of thread breakage in the production process can be effectively reduced, and meanwhile the flexibility of the sewing thread is improved through annealing equipment. A special metal sewing thread guide device is designed on the sewing machine for the metal sewing thread, so that the special metal sewing thread guide device can be matched with the up-and-down moving stroke of the sewing thread, and automatic sewing of the metal sewing thread is achieved. According to the design, not only are the flexibility and strength optimization of the metal sewing thread achieved, but also automatic sewing of the pure metal sewing thread on a sewing machine is achieved.

The invention discloses a plastic mold for preparing a control handle on a car steering wheel, comprising a fixed mold plate and a movable mold plate, wherein a first slider assembly is arranged on the movable mold plate, and two second slider assemblies symmetrical to each other are arranged on the first slider assembly, and two second slider assemblies symmetrical to each other are arranged on the first slider assembly, and are respectively used for molding a first concave cavity and a connecting shaft on a product body of the control handle and molding a second concave cavity on the connecting shaft, and a delayed contact mechanism is arranged so that when the movable mold plate moves to open the mold, the first slider assembly starts to move after the second slider assembly finishes moving, and only one movement of the movable mold plate is required to complete the core pulling movement in two directions, thereby ensuring the molding of product features in two perpendicular directions, simplifying the process and improving the mold opening efficiency.

The invention is suitable for the technical field of titanium pipe elbow machining, and provides seamless titanium pipe elbow machining equipment and a machining method thereof.The seamless titanium pipe elbow machining equipment comprises a pushing unit, a sliding unit and a lifting unit; the pushing unit comprises an operation table, a sliding rail, an electric sliding block, a sliding plate, a limiting piece, a clamping piece, a main rod core, an ox horn rod core and an induction type heating coil. Each sliding unit comprises a supporting plate, a circular track, an electric ring block, a fixing disc, a sliding piece, a rotating disc, a pushing air cylinder, an electric telescopic rod and a fixing pile. The lifting unit comprises a vertical plate, an adjusting piece and a lifting piece; through mutual cooperation of the adjusting piece and the lifting piece, the formed titanium elbow can be lifted and supported, and the situation that no bottom supporting mechanism is arranged below the formed elbow, the formed elbow shakes in the air due to inertia, the formed elbow pulls the formed elbow, and the forming quality of the titanium elbow is improved is avoided. The problem that the end, making contact with the bent pipe being formed, of the formed bent pipe deforms together is solved, and therefore the production quality of the titanium bent pipe is improved.

The invention relates to the field of lost foam casting, in particular to a casting method of a motor shell with a spiral water channel, which comprises the following steps of: S1, manufacturing and forming a motor shell white mold through a mold; the motor shell white mold in the step S1 comprises a shell mold sheet and an inner cylinder mold sheet; a shell cavity is formed in the shell mold piece, a shell spiral protrusion is arranged on the inner wall of the shell cavity, and the thickness of one end of the shell spiral protrusion is smaller than that of the other end of the shell spiral protrusion. An inner cylinder spiral bulge corresponding to the shell spiral bulge is arranged on the outer peripheral surface of the inner cylinder mold sheet; the thickness of one end of the inner cylinder spiral bulge is smaller than that of the other end of the inner cylinder spiral bulge; s2, the outer surfaces of the shell mold piece, the inner cylinder mold piece, the shell spiral protrusion and the inner cylinder spiral protrusion are coated with an adhesive; and S3, the inner barrel mold piece is sleeved with the shell mold piece in the axis direction of the inner barrel mold piece. The manufacturing method has the advantages that the manufacturing difficulty of the white mold is reduced, and therefore the manufacturing efficiency of the motor shell is ensured.

The invention discloses silicone oil paper for a steamer and a preparation technology of the silicone oil paper, and belongs to the technical field of silicone oil paper.The silicone oil paper is characterized by comprising a paper sheet body, and the paper sheet body comprises fiber body paper; the coatings are arranged on the two side faces of the fiber body paper, and the coatings are prepared by uniformly mixing cellulose, chitosan, an oxidizing agent, emulsion silicone oil and a cross-linking agent in proportion; the through hole penetrates through the fiber body paper and the coating; the slotted holes are formed in at least one coating layer, and the slotted holes are connected with the fiber body paper. According to the application, the slotted holes can be formed in the silicone oil paper, so that steamed stuffed buns can be conveniently adhered to fiber base paper in the silicone oil paper sheet body, and the steamed stuffed buns are not easy to fall off and are not difficult to take down.

The utility model relates to bridge construction equipment technical field, and disclose a kind of pier column bent cap reinforcement framework piece shaping jig frame, including outer frame system, inner support system and connecting piece, the outer frame system includes first shaping frame, second shaping frame and third shaping frame, connecting piece two sides are respectively symmetrical and connect a group of outer frame system and inner support system, so that outer frame system and inner support system can be combined into a whole, the assembly and disassembly of jig frame are facilitated, construction efficiency is improved, and damage or deformation can be replaced individually in certain part, without replacing the whole jig frame, reduce construction cost.

This utility model discloses a creasing device for corrugated cardboard boxes, including a processing table with a feed roller and a stop roller at both ends. The stop roller has a stop strip, and two adjusting grooves are symmetrically arranged on the processing table. A creasing support is provided, with a lifting cylinder at the top and a carrying plate fixed to the lower end of the lifting cylinder. Pressure plates are provided on both sides of the carrying plate, and a spring is provided between the carrying plate and the pressure plates. A creasing knife is provided on the lower surface of the carrying plate. Two symmetrical guide plates are provided, each with a linkage boss and several guide wheels. The linkage bosses are slidably connected to the adjusting grooves, and a linkage adjusting assembly is provided between the two linkage bosses. During processing, the feed rollers drive the cardboard towards the processing table. The cardboard is aligned by the guide plates and its travel distance is limited by the stop strips. After the cardboard reaches its position, the pressure plates press it down, and then creasing is performed. This avoids positional deviations in the creasing and ensures the normal forming of the corrugated cardboard box.

The invention relates to a free liquid level type electrostatic spinning device which comprises a high-voltage generator, two supporting frames, a liquid dropping platform, a plurality of sets of jet flow generating devices, a collecting plate and a liquid supply device. The two support frames are symmetrically fixed on the high-voltage generator; the liquid dropping platform is slidably installed between the two supporting frames, and a plurality of grooves are formed in the top face of the liquid dropping platform. The multiple sets of jet flow generating devices are arranged between the two supporting frames and correspond to the multiple grooves. The collecting plate is arranged right above the plurality of groups of jet flow generating devices; and the liquid supply device is connected with the liquid inlet pipeline. The spinning solution drips from the liquid outlet pipeline and then falls onto the metal wires to form a free liquid level, large-range nano-micron fibers are generated and deposited on the collecting plate under the action of an electric field between the metal wires and the collecting plate, the wire output amount is large, the production efficiency is high, the metal wires can be kept far away from one another, the interference effect of the electric field is avoided, and the production efficiency is improved. And the fiber forming and spinning stability is ensured.

The utility model relates to glass processing technical field, concretely is a kind of glass processing furnace, including base, the base is located the bottom end of whole device, the base upper end is fixedly installed with main part, the main part front is equipped with movable door, the main part is equipped with mixing subassembly, and mixing subassembly is installed with motor, motor output end is installed with stirring rod, and stirring rod both sides are evenly installed with stirring vane.This device sets up and is stirred to glass raw material by processing furnace motor-driven stirring rod and stirring vane, and by adjusting component, the angle and position of stirring vane can be adjusted, make glass raw material fully mix in mixing tank, improve the quality of glass finished product, reduce the problem such as impurity and uneven color, temperature sensor real-time monitoring the temperature in mixing tank, air duct heater can be accurately adjusted according to temperature feedback information, meet the requirement of different glass product to melting temperature, guarantee the formation and performance of glass.

The utility model relates to the technical field of injection molds, in particular to an injection mold capable of controlling the material flow speed. The device comprises a first mold and an adjusting assembly, the adjusting assembly comprises a connecting block, the connecting block is fixedly connected to one side of the first mold, a connecting column is slidably connected to the interior of the connecting block, a rotating groove is formed in the top of the connecting column, and the interior of the rotating groove is in a convex shape; the interior of the rotating groove is rotationally connected with a rotating block, and the rotating block is in a convex shape. According to the injection mold capable of controlling the material flow speed, when injection molding work is carried out, a rotating block can push a limiting block to move downwards through a connecting column, and meanwhile by observing the height difference between a graduated scale and a handle, the limiting block moving downwards can control the size of the inner space of a conveying groove; therefore, the speed and the flow of injection molding materials can be accurately controlled, flexible adjustment can be carried out according to material characteristics, and it is ensured that various types of plastic can be formed in the optimal state.

The utility model relates to the technical field of spring roll production, in particular to a spring roll turning and skin folding device, two turning and skin folding mechanisms with opposite turning directions are arranged on a bottom plate, and each turning and skin folding mechanism comprises a position adjusting assembly, a tracking moving mechanism and a turning and skin folding assembly. The overturning and skin turning assembly comprises a moving plate, an overturning air cylinder, a connecting rod structure and a mold plate, the moving plate is connected with the driving assembly and is in sliding connection with the guide sliding shaft, a piston rod of the overturning air cylinder is connected with the connecting rod structure, the connecting rod structure is connected with an overturning seat, and the overturning seat is fixedly arranged at the bottom of the mold plate; and the mold plate is rotationally arranged at the upper end of the moving plate. The spring roll wrapper folding machine adopts a mechanical structure to complete the wrapper folding of a spring roll, can control the posture and the wrapper folding process of the spring roll wrapper, improves the spring roll wrapper folding effect, can ensure the wrapper folding forming of the spring roll, and improves the success rate of the spring roll wrapper folding.

The invention provides a thermoplastic resin composite material fiber bundle continuous laying forming device, and belongs to the technical field of composite material fiber bundle laying equipment.The thermoplastic resin composite material fiber bundle continuous laying forming device comprises a supporting frame, an unwinding unit is connected to the left side wall face of the supporting frame, a traction unit is arranged on one side of the unwinding unit, and a compounding unit is arranged on the other side of the traction unit; the composite unit is correspondingly provided with a compression molding unit, one side of the compression molding unit is provided with a heating unit, two sides of the heating unit are respectively provided with a leveling unit and a cooling unit, and one side of the cooling unit is provided with a laying roller. According to the thermoplastic resin composite material fiber bundle continuous laying forming device, the problem that in the prior art, laying equipment and high-temperature welding are carried out step by step, operation is tedious is solved, the structures of all the parts are used in a matched mode, laying and compositing are integrated, it is guaranteed that fiber tension is uniform, and laying efficiency is improved.

The utility model belongs to the technical field of mooncake production, and discloses an automatic mooncake forming machine with a mold convenient to replace, which comprises a vertical frame, a cylinder and a lifting plate fixedly connected to the telescopic end of the cylinder, and further comprises a mounting cylinder arranged below the lifting plate, and a plurality of sliding grooves are formed in the mounting cylinder. According to the mooncake stuffing forming device, the lifting plate can descend through the air cylinder, the mold sleeve is sleeved on mooncake stuffing, the bottom face of the mold sleeve makes contact with a mooncake conveying belt, at the moment, the lifting plate continuously descends and drives the sliding column and the clamping frame to slide in the sliding groove, and the pressure spring drives the top cover and the embossing plate to descend together till the embossing plate extrudes and forms the mooncake stuffing. Meanwhile, a clamping frame is clamped and fixed in a sliding groove through a clamping block, after mooncakes are formed, an air cylinder is used for controlling a lifting plate to ascend, the clamping frame drives a mounting barrel and a mold sleeve to ascend, the mooncakes are prevented from being attached to the inner wall of the mold sleeve, and an embossing plate continuously extrudes the mooncakes under the elastic force action of a compression spring so that the mooncakes at the bottom end of the embossing plate can fall off.

The utility model discloses a nail bin seat. The nail bin seat comprises a nail bin seat body, a through groove for the cutter to move is formed in one side of the nail bin seat body; a limiting piece used for preventing the two sides of the middle of the nail bin base body from being opened outwards is arranged in the middle of the bottom face of the nail bin base body. The limiting piece used for preventing the two sides of the middle of the nail bin seat body from being opened outwards is arranged in the middle of the bottom face of the nail bin seat body, and the limiting piece limits the middle of the nail bin seat body, so that the two sides of the middle of the nail bin seat body are prevented from being opened outwards, and the situation that the nail abutting seat and the nail groove of the nail bin body are staggered is avoided; and the forming of the anastomosis nail is ensured.

This invention relates to a high-performance fiber-metal laminate rapid prototyping device, belonging to the field of sheet metal forming technology. The device includes a base plate, above which are sequentially arranged a first yarn rack, a glue-impregnation tank, a second yarn rack, a pre-pressing mechanism, a preheating mechanism, a pressurizing mechanism, a heating and pressurizing shaping mechanism, a cooling mechanism, a conveying mechanism, a cutting mechanism, and a frame. This invention effectively avoids relative slippage between the multi-layer fiber cloth and the metal strip during rolling, thereby preventing a decrease in overall stiffness and load-bearing capacity due to interface failure, and significantly reducing the initiation and propagation of cracks. Simultaneously, the rollers apply sufficient compaction to the multi-layer material, completely eliminating interlayer bubbles and local debonding defects, significantly improving the subsequent service performance and durability of the sheet metal. This invention offers high forming efficiency and fast forming speed.

The invention discloses an injection mold with an efficient cooling function, and relates to the technical field of injection molds, the injection mold comprises a base, a pair of side vertical plates are fixedly mounted at the top of the base, hydraulic cross rods are fixedly mounted on the opposite sides of the side vertical plates, and connecting plates are fixedly mounted at the opposite ends of the hydraulic cross rods; by means of the transmission assembly, after the two injection molds are opened, a piston square plate can move downwards, so that a cavity cylinder, an end rod and a cooling end cavity plate are pushed to move downwards to be located between the injection molds after mold opening, when a small air pump operates, air can be filled into the cooling end cavity plate, and the cooling end cavity plate is cooled. After heat exchange cooling of the heat exchange pieces, cold air is blown to a mold cavity of the injection mold, efficient cooling of the injection mold can be achieved in cooperation with a self-contained water cooling system of the injection mold in the prior art, auxiliary cooling can be carried out on an injection product while cooling is carried out, and cooling and forming of the injection product are guaranteed.

The invention discloses a heat insulation strip extrusion combined die and a heat insulation strip processing method.The die comprises an upper die body and a lower die body, a directional sealing unit is arranged on the upper die body, a separation unit is arranged in the lower die body and located at the bottom of the lower die body, and die cavities are formed in the upper die body and the lower die body correspondingly; the directional sealing unit comprises a sealing frame, a blocking telescopic rod is arranged in the middle of the top end of the sealing frame, a memory spring is arranged on the blocking telescopic rod, a blocking sealing piece is arranged at the bottom end of the memory spring, a bearing is arranged on one side of the sealing frame, a communicating pipeline is arranged in the bearing, and a condenser is arranged on the communicating pipeline. According to the invention, the upper and lower die body cavities can be sealed through the communicating pipelines in the directional sealing units and the arranged plugging sealing pieces, so that more bubbles are prevented from being generated in the extrusion forming process of the heat insulation strip, and the condenser is arranged to quickly cool the whole cavity, so that the quality of the formed heat insulation strip product is ensured to reach the standard.

The invention relates to a tank head template of an electrolytic tank. The tank head template comprises a U-shaped plate and at least one reinforcing plate, the reinforcing plate is matched with the U-shaped plate, the reinforcing plate is arranged in the U-shaped plate, and one end of the reinforcing plate is connected with the inner wall of the U-shaped plate; the opening end of the U-shaped plate faces downwards and is fixed to the groove head assembling platform, the U-shaped plate is matched with the groove head structure, the groove head structure is used for being assembled on the outer wall of the U-shaped plate, and the groove head structure is connected with the U-shaped plate in a clamped mode through a clamping plate; compared with traditional groove head structure part assembly, the construction efficiency is improved; and meanwhile, forming of the bent steel plate is ensured, and stress deformation after welding is avoided.

The application relates to a free liquid surface type electrostatic spinning device which comprises a high-voltage generator, two supporting frames, a liquid drop platform, a plurality of groups of jet flow generating devices, a collecting plate and a liquid supply device; the two supporting frames are symmetrically fixed on the high-voltage generator; the liquid drop platform is slidingly installed between the two supporting frames, and the top surface of the liquid drop platform is provided with a plurality of grooves; the plurality of groups of jet flow generating devices are arranged between the two supporting frames and correspond to the plurality of grooves; the collecting plate is arranged directly above the plurality of groups of jet flow generating devices; and the liquid supply device is connected with a liquid inlet pipeline. After the spinning liquid drops from the liquid outlet pipeline, the spinning liquid falls on the metal wires to form free liquid surfaces; under the action of the electric field between the metal wires and the collecting plate, a large range of nanometer and micrometer fibers are deposited on the collecting plate, the amount of spun yarn is large, the production efficiency is high, a relatively long distance can be ensured between the metal wires to avoid the interference of the electric field, and the stability of fiber forming and spinning is ensured.

The invention discloses an automatic binding device for physical examination blood sampling in the technical field of nursing instruments, the automatic binding device comprises a bottom frame and a binding belt, supporting plates are fixedly connected to the positions, close to the front portion and the rear portion, of the bottom frame, and a certain distance is formed between the two supporting plates; the middle positions between the two supporting plates are jointly connected with a positioning piece in a sliding manner; according to the invention, through multi-point positioning of the placing space by the first strap and the two second straps, the placing space cannot be distorted and misplaced under the characteristics of easy bending and easy winding after being formed, so that misplacement caused by the fact that the strap binds an arm along with gradual reduction of the placing space during subsequent blood sampling is avoided; and in the process of reducing the placing space, the two second binding belts continuously displace in the process of being in contact with the binding belt so as to adapt to the reduction of the placing space.

This utility model provides an agricultural machinery soil turning device, including: a main connecting frame, soil turning blades, and thickened blades. The left side of the main connecting frame is provided with several sets of main support frames for connecting, fixing, and supporting the main frame. The middle position of the main connecting frame is provided with a set of connecting holes for connecting and fixing with external traction machinery. Compared with the prior art, this utility model has the following beneficial effects: the main connecting frame is hinged and fixed to the traction machinery through the connecting holes in the middle position. During traction operation, the main support frame and the lower support frame are combined to disperse the load stress and prevent structural deformation. The main frame is fixed with several sets of front-view J-shaped and right-side horizontally staggered soil turning blades by bolts of the lower connecting frame. The thickened blades strengthen the soil breaking strength and resist soil erosion at the lower end of the blade. After the soil turning blades cut into the soil layer as the machinery moves, the J-shaped structure guides the soil to rise and turn laterally. The retaining plate restricts the fall path of the turned soil clods to ensure the formation of trenches.