18results about How to "Guaranteed molding" patented technology

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 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 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 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 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.

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 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.

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.

The invention relates to the technical field of 3D printing, in particular to a 3D printer which comprises a machine shell, a driving device installed on the upper portion of the interior of the machine shell and a platform device installed at the bottom of the interior of the machine shell, a printing assembly is arranged in the middle of the driving device and comprises a spray head pipe, and an installation space is formed in the middle of the spray head pipe. The nozzle pipe is divided into a feeding part at the upper end and a discharging part at the lower end by the mounting space; a linkage device is arranged in the mounting space and comprises a motor, a first driving gear and a first gear ring, the motor is fixedly mounted on the side edge of the spray head pipe, the first driving gear is fixedly connected to the output end of the motor, and the first gear ring is rotationally mounted at the bottom end of the feeding part; and the first driving gear is in engaged connection with the first gear ring. The interior of the spray head pipe is emptied, the next material can be conveniently guided in, the switching speed of the materials of multiple colors is increased, and the printing efficiency is improved.

The application discloses a manufacturing process for improving the solder mask bridge falling problem of a high-layer circuit board based on an AI server, relates to the field of PCB manufacturing technologies, and comprises a pretreatment process, a silk-screen printing process, a pre-baking process, an exposure process, a developing process and a high-temperature curing process. The pretreatment process adopts volcano ash plate grinding and super-rough cleaning. The silk-screen printing process adopts secondary printing of oil, and the first solder mask bridge position is blocked from oil. The exposure process reduces the gap between the solder mask bridge and the design PAD and etching PAD. The developing process maintains the pH value of developing liquid at a constant value by calculating the ink usage of a single PCB and adopting the drag tank method or the production green oil plate method, so that the problems of the prior art, such as the easy falling of the solder mask bridge and the high defect rate, are solved.

The invention discloses a preparation method of a large thick-wall hard alloy mixture. The preparation method comprises the following steps that 1, various raw materials needed for preparing the mixture are put into a 300-liter tilting-type ball mill to be subjected to ball milling; step 2, the slurry is sieved by a 325-mesh sieve, and the sieved slurry is put into a large barrel to be precipitated for 24 hours; step 3, putting the precipitated slurry of which the absolute ethyl alcohol on the surface is filtered out into a 300-liter vertical stirring dryer, and drying for 4-6 hours; cooling to room temperature after the powder is dried; step 4, continuing to mix the rubber forming agent in the vertical stirring dryer; and step 5, filling inert gas into the material barrel filled with the mixed material doped with the glue for protection, then lifting the feeding cover for discharging, sieving, sampling and detecting, and packaging qualified products into the barrel. All operations including drying, glue mixing, drying and the like can be completed on the same equipment.