213results about How to "Adjustable thickness" patented technology

The invention provides an optical imaging lens, the optical imaging lens has eight lenses with focal power, and the optical imaging lens comprises a lens group, a spacing element group and a lens barrel group, the effective focal length f7 of the seventh lens and the interval EP67 between the sixth spacing element and the seventh spacing element in the direction of the optical axis of the optical imaging lens meet the following condition: f7 / EP67 is more than or equal to-8.25 and less than or equal to-6.82; the curvature radius R15 of the object side face of the eighth lens and the inner diameter d7m of the image side face of the seventh spacing element meet the condition that R15 / d7m is larger than or equal to 1.31 and smaller than or equal to 2.28. The multi-group optical imaging lens solves the problems that in the prior art, the rear end forming yield of the multi-group optical imaging lens is low, and stray light is serious.

The invention discloses a phase change fiber membrane with a composite core-sheath structure and a preparation method and application thereof.The method comprises the steps that polyacrylonitrile is dissolved in N 'N-dimethylformamide and stirred to be completely dissolved, then hydroxylated boron nitride is added, the hydroxylated boron nitride is evenly dispersed through ultrasonic treatment, and a sheath spinning precursor solution is prepared; dissolving polyethylene glycol in N 'N-dimethylformamide, stirring to melt the polyethylene glycol, and taking the polyethylene glycol as a core layer spinning precursor solution; preparing a phase change fiber membrane with a core-sheath structure from the sheath spinning precursor solution and the core spinning precursor solution through a coaxial electrostatic spinning process; and placing the phase change fiber membrane with the core-sheath structure in an ethanol dispersion liquid of hydroxylated boron nitride, carrying out ultrasonic dip-coating, and then carrying out cold pressing treatment to prepare the phase change fiber membrane with the composite core-sheath structure. The obtained composite core-sheath structure phase change fiber membrane has good latent heat property, thermal conductivity and flexibility, and meanwhile, leakage of the phase change material is prevented through the core-sheath structure.

The invention provides a preparation method and application of a corrosion-resistant micro-arc oxidation film layer. The method comprises the following steps: pretreating valve metal and / or an alloy matrix thereof; and the pretreated valve metal and / or an alloy matrix of the valve metal are / is immersed in electrolyte of a bipolar superaudio frequency pulse micro-arc oxidation system, micro-arc oxidation parameters are set as follows: the voltage ranges from-50 V to 600 V, the power output pulse frequency ranges from 1 kHz to 150 kHz, the duty ratio ranges from 0.1 to 0.5, micro-arc oxidation is conducted for a preset duration, and the metal matrix with the corrosion-resistant micro-arc oxidation film layer is obtained. According to the method, the high-corrosion-resistance micro-arc oxidation film layer can be obtained.

The utility model belongs to the technical field of building construction, and particularly relates to a plastering and masonry mortar paving dual-purpose device. According to the technical scheme, the dual-purpose device for plastering and masonry mortar paving comprises a shell, two adjustable side plates are arranged in the shell, side plate adjusting bolts are connected to the shell in a threaded mode, side plate fixing devices are fixed to the adjustable side plates, the side plate adjusting bolts are rotationally connected with the side plate fixing devices, and the side plate adjusting bolts are rotationally connected with the side plate fixing devices. A scraper adjusting bolt is further in threaded connection with the front side of the shell and rotationally connected with a mortar scraper, and a level gauge is installed on the shell. The utility model provides a dual-purpose device for plastering and paving masonry mortar.

The utility model discloses a zinc layer thickness control device for a galvanized steel wire, and relates to the technical field of zinc layer thickness control. Comprising a steel wire galvanizing mechanism, the steel wire galvanizing mechanism comprises a bottom plate, one side of the top of the bottom plate is fixedly connected with a left side base, a control panel is installed on one side of the left side base, a steel wire moving and adjusting assembly is fixedly installed on one side of the top of the control panel, and a steel wire body is arranged on the top of the steel wire moving and adjusting assembly; a galvanized pot is mounted on the surface of the base on the left side; the device can regulate and control the thickness of a steel wire galvanizing layer, is favorable for regulating the length of the steel wire extending into galvanizing liquid according to the requirement of steel wire galvanizing so as to regulate the thickness of the galvanizing layer, can regulate and control the thickness of the steel wire galvanizing layer by cooling and regulating the rolling speed of the steel wire, and improves the galvanizing effect of the steel wire; and the thickness of the steel wire galvanized layer is more accurately and efficiently regulated, and the production quality of the galvanized steel wire is improved.

The invention belongs to the field of semiconductor bridge current protection, and particularly relates to a semiconductor bridge current protection method based on a vanadium dioxide thick film thermistor. Firstly, copper, nickel and gold interdigital electrodes are deposited and grown on an aluminum oxide ceramic substrate, then a methanol solution of vanadyl acetylacetonate is sprayed on the surface of the heated interdigital electrode, a vanadium dioxide thermistor device is obtained, the vanadium dioxide thermistor device is connected with a semiconductor bridge in parallel, and current protection of the semiconductor bridge thermistor is achieved. Vanadium dioxide with a single valence state can be synthesized by adjusting the synthesis method and process, M-phase vanadium dioxide is synthesized on the interdigital electrode in one step, the vanadium dioxide prepared by the method avoids the tedious process that vanadium dioxide powder is firstly prepared and then transplanted to the surface of the interdigital electrode, and the preparation method is simple and convenient to operate. And the vanadium dioxide can be more stably combined on the surface of the interdigital electrode.

The invention discloses roll-to-roll gum dipping and rolling integrated equipment, which relates to the technical field of fuel cell production and comprises an unwinding system, a gum dipping system, a drying system, a continuous rolling system and a winding system which are connected in sequence, wherein the unwinding system is used for unwinding a carbon fiber paper raw paper coiled material and outputting a material belt; the glue dipping system is used for dipping the material belt with glue slurry; the drying system is used for drying the sizing material slurry loaded on the material belt; the continuous rolling system is used for adjusting the thickness of the sizing material cured on the material belt; and the winding system is used for rewinding the material strip to form the carbon fiber paper glue-carrying coiled material. According to the device, the carbon fiber paper raw paper coiled material can be continuously subjected to gum dipping, drying and hot rolling processing, a gum material can be uniformly distributed on a material belt, the defects of the surface layer of the gum material are reduced, and the overall production efficiency and production quality of the carbon fiber paper can be effectively improved.

The invention discloses a long-time strong-adhesion tissue repair patch and a preparation method thereof, and the preparation method comprises the following steps: adding an adhesion component, an anti-swelling component and alpha-ketoglutaric acid into a colloidal aqueous solution of a patch matrix material to obtain a precursor solution; and pouring the precursor solution into a patch mold, carrying out ultraviolet curing, and drying the obtained gel to obtain the patch. From the selection of materials and chemical bonds, physical and chemical bonds such as amido bonds, disulfide bonds and catechol groups are combined, so that the adhesion strength is improved, the adhesion duration is prolonged, and the adhesive has excellent anti-swelling performance and mechanical performance, can effectively isolate external saliva, food residues and the like when being applied to the oral cavity, reduces infection of ulcer wounds, and has a good application prospect. The dental ulcer healing is accelerated, and the method also has a relatively good application prospect in the field of tissue repair.

The invention relates to a terahertz transparent electrode based on a nickel tellurium compound and a preparation method and application thereof, and belongs to the technical field of terahertz electrodes. In order to solve the problem that an existing terahertz transparent electrode cannot have high transmittance and good conductivity in the terahertz wave propagation direction at the same time, the invention provides a terahertz transparent electrode based on a nickel-tellurium compound, which comprises a substrate and a nickel-tellurium compound film. The nickel-tellurium compound films with different nickel-tellurium ratios are prepared by setting the target materials with different nickel-tellurium areas, so that the conductivity, transmittance and thickness of the terahertz transparent electrode are adjusted, and the relatively high transmittance and high conductivity of the terahertz wave band of the terahertz transparent electrode are balanced; the transmittance of the obtained terahertz transparent electrode based on the nickel tellurium compound in the terahertz wave band is higher than 80%, the conductivity is larger than 1000 S / cm, and the qualified standard of a transparent conductive film is met. The preparation method is low in requirement and suitable for practical batch production of the terahertz transparent electrode.

The utility model relates to the technical field of motor production, in particular to an automatic paint spraying device for motor production, a paint spraying assembly is installed on the upper portion of a fixing table, an adjusting assembly is installed on the upper portion of the fixing table and corresponds to the paint spraying assembly, and the paint spraying assembly comprises an adjusting seat installed on the upper portion of the fixing table. A first adjusting frame is rotatably connected to the upper portion of the adjusting seat, a pushing sliding rod is rotatably connected between the adjusting seat and the inner side of the first adjusting frame, a first sliding seat is slidably connected to the upper portion of the first adjusting frame, and a first paint spraying gun is fixedly installed on the upper portion of the first sliding seat; a second adjusting frame is fixedly installed at the position, close to the adjusting base, of the upper portion of the fixing table, and a second sliding base is slidably connected to the upper portion of the second adjusting frame. According to the automatic paint spraying device for motor production, motor shells of different specifications can be conveniently fixed through the device for paint spraying, all-directional paint spraying is achieved, and the paint spraying effect is improved.

The utility model discloses a thickness control device for a storage battery pole plate smear, and relates to the technical field of lead-acid storage battery pole plates. The continuous plate coating machine comprises a continuous plate coating machine and a height adjusting device, a compression roller mechanism is arranged in the continuous plate coating machine, and the compression roller mechanism comprises a driving roller and an auxiliary roller; the height adjusting device comprises a mounting rack, a vertical lifting assembly, an infrared distance measuring sensor and a control cabinet; a mounting plate is mounted on the inner wall of the mounting rack, and an auxiliary roller is assembled on the mounting plate; a vertical lifting assembly is arranged on the inner wall of the mounting rack in a sliding fit mode, and a driving roller is assembled on the vertical lifting assembly. An infrared distance measuring sensor is fixed on the top surface of the mounting plate; and the control cabinet is fixed on the mounting rack, and a control panel is fixedly mounted on the control cabinet. Through the action of the height adjusting device, the height of the vertical lifting assembly is controlled, so that the thickness of the polar plate is quickly adjusted, acquisition monitoring and data display are carried out, and the thickness of the adjusted polar plate is ensured to be consistent.

The invention discloses a hoop and a forming method thereof, the hoop comprises a hoop belt with an elastic part, a first mounting part and a second mounting part, the first mounting part and the second mounting part are detachably connected through a connecting piece, and the elastic part, the first mounting part and the second mounting part are integrally formed by paving continuous long fibers and resin materials; the thickness of the large deformation area of the elastic part is smaller than that of the small deformation area and / or the large deformation area is provided with an annular groove. The invention provides a high-performance light-weight long-fiber clamp which is used for fixing aviation cables and pipelines, the clamp can independently adopt a strap and can also be used in cooperation with a rubber pad, the strap adopts a long-fiber composite material strap to replace a metal clamp strap, the product weight is reduced, the size is reduced, and the structural strength is guaranteed; by adopting the modes of reducing structural design, combination of continuous long fibers and resin materials and the like, the toughness of the strap is improved, the deformation elastic force is reduced, the hoop can be manually opened, and the problems of brittle failure and the like of the carbon fiber strap are avoided.

The invention discloses a negative oxygen ion catalyzed SPC stone-plastic floor material and a preparation method and equipment thereof, and belongs to the technical field of stone-plastic floors, the negative oxygen ion catalyzed SPC stone-plastic floor material is prepared from polyvinyl chloride resin, ground calcium carbonate, nano titanium dioxide, tourmaline, nano magnesium oxide, a plasticizer, a lubricant, a surfactant and a stabilizer. According to preparation of the negative oxygen ion catalyzed SPC stone plastic floor material, porous anatase crystal type nano carbon dioxide particles doped with rare earth elements, tourmaline containing iron and manganese elements and nano magnesium oxide particles are added, so that the prepared negative oxygen ion catalyzed SPC stone plastic floor material has the function of releasing negative ions; the SPC stone-plastic flooring material has good air purification effect and good photocatalytic effect, overcomes the defects of low air purification effect and single function of the existing SPC stone-plastic flooring material, and is simple and feasible in preparation method and suitable for large-scale industrial production and application.

Provided is a method for producing a film, which is a method for forming a coating film having a width of 1600 mm or more and a thickness of 30 [mu] m or less on a substrate using a slit die, the method comprising: an application step for applying an application liquid to the substrate; and a drying step for drying the coating liquid applied to the base material. The thickness of the pad of the slit die is 20 [mu] m or more and 100 [mu] m or less.

The invention discloses an MOSCAP device based on a p-dipole material Ga2O3 and a preparation method of the MOSCAP device. The method comprises the following steps: firstly, growing a SiO2 interface layer (IL) on a p-Si substrate through a thermal oxidation method; ga2O3 with different cycle numbers is grown on the IL layer through an atomic layer deposition technology, and an HfO2 film is grown in situ. And then, rapidly annealing the device to repair oxide defects between the dielectric layers. And finally, preparing a patterned W electrode, thereby obtaining the MOSCAP device. According to the invention, after the Ga2O3 dipole layer is added, the MOSCAP device shows a relatively low hysteresis curve, only an extremely low equivalent oxide thickness (EOT) is increased, and meanwhile, remarkable VFB forward adjustment is realized. The invention proves that Ga2O3 is a novel p-dipole material with potential, and shows a wide application prospect in multi-threshold technical development of advanced process nodes.

The utility model relates to a hot rolling mechanism capable of adjusting the thickness of a copper plate, which comprises a working table and a hot rolling bin fixed on the working table, the upper surface of the working table is provided with an adjusting component for adjusting the thickness of the copper plate, and the upper surface of the hot rolling bin is provided with a cooling component for cooling the copper plate. According to the hot rolling mechanism capable of adjusting the thickness of the copper plate, the adjusting assembly is arranged in the hot rolling mechanism capable of adjusting the thickness of the copper plate, and by arranging a second motor, a lead screw, a nut sleeve, a movable plate, a positioning plate and a second shaft rod, height adjustment of a second hot rolling roller is achieved; by changing the distance between the second hot rolling roller and the first hot rolling roller, the hot rolling mechanism can adjust the thickness of the copper plate, the variable machining requirements are met, the practicability is improved, and the problems that in the copper plate machining process, the hot rolling thickness of the copper plate cannot be adjusted according to the machining requirements, and the practicability is reduced are solved.

The utility model discloses a base plate on-line powder spreading device which comprises a support, a base plate conveying roller, a material distributing hopper and a powder hopper are sequentially installed on the support from bottom to top, a vibrating screen is arranged between the material distributing hopper and the powder hopper, the base plate conveying roller is rotatably installed on the support, the material distributing hopper comprises a hopper body and a material distributing section, a material distributing cavity is formed in the material distributing section, and the vibrating screen is arranged in the material distributing section. A material distributing cavity is formed in the material distributing section and communicated with the interior of the hopper body, a material distributing opening communicated with the material distributing cavity is formed in the lower end of the material distributing section, the length direction of the material distributing opening is parallel to the axis direction of the substrate conveying roller, the length of the material distributing opening is adjustable, the vibration screen is driven by a vibration driving mechanism to vibrate, a discharging opening is formed in the lower end of the powder hopper, and a valve is installed at the discharging opening. According to the on-line powder laying device for the base plate, powder can be evenly and stably laid on the base plate, the thickness of a powder layer can be adjusted, and the on-line powder laying device for the base plate can be suitable for laying powder on the base plates of different specifications and is wide in application range.

The slicing device for processing the traditional Chinese medicine decoction pieces comprises a first supporting piece, a plurality of sets of baffles capable of sliding up and down are installed on the upper surface of the first supporting piece at equal intervals, the baffles are in sliding connection with limiting plates installed at supporting legs of the first supporting piece through elastic supporting pieces, and a containing groove is formed between every two adjacent sets of baffles. According to the traditional Chinese medicine slicing device, the elastic supporting piece can assist the baffle to reset, traditional Chinese medicine can be placed in the containing groove, the limiting block extends into the containing groove, the traditional Chinese medicine can be pushed to move towards the slicing structure when the belt conveyor operates, the height of the belt conveyor can be adjusted through the lifting assembly, and the traditional Chinese medicine slicing device is convenient to use and high in practicability. Under pushing of the elastic supporting piece, the baffle can make contact with the belt conveyor all the time, the material combing effect is achieved, meanwhile, conveying of traditional Chinese medicinal materials is not affected, the slicing efficiency can be improved, and the traditional Chinese medicinal material slicing device can be suitable for being used for traditional Chinese medicinal materials with different thicknesses.

The invention discloses a cassava planter for both flat land and ridge surface, comprising: a frame; a planting device, which is installed at the bottom of the frame, the planting device comprises at least one planting mechanism, each planting mechanism comprises a fertilizing furrowing plow, a planting furrowing plow, a seed cutter and a soil covering device in sequence from front to back, the fertilizing furrowing plow and the planting furrowing plow are staggered front and back; the seed cutter is located above the planting furrowing plow; two ridge protection plates, the two ridge protection plates are symmetrically arranged on the left and right sides of the planting furrowing plow, and the top of each ridge protection plate is hinged to the frame in a way that it can be flipped left and right; and a fertilizing device, which is installed on the frame, and the outlet of the fertilizing device is installed on the rear side of the fertilizing furrowing plow. The cassava planter of the invention integrates fertilization, furrowing, seed cutting, planting and soil covering, can stagger cassava planting and fertilization, and improve the germination rate of cassava; the two ridge protection plates can adapt to ridge surface planting and flat land planting, and has strong practicality.

The utility model discloses an automatic gluing machine which comprises a rack and is characterized in that a product conveying device, a gluing device, a manipulator device and a discharging device are arranged on the rack, and the product conveying device comprises a mold for bearing products, a mold linear sliding rail and a mold driving structure. The moving path of the mold passes through a gluing area of the gluing device, a product on the mold is glued by the gluing device, the discharging device is arranged at the tail end of the product conveying device, and the mechanical arm device is connected with the product conveying device and the discharging device to transfer and stack the product. The product disclosed by the utility model adopts mold conveying, movable gluing and stacking discharging, so that gluing, stacking and collecting can be quickly completed, and the production efficiency is improved.

The invention provides an in-situ hard carbon coating for the surface of a graphite workpiece, the hard carbon coating is a carbon coating derived from a ZIF-8 coating after high-temperature carbonization, and the ZIF-8 coating is prepared from a zinc oxide coating electrochemically deposited on the surface of the graphite workpiece and 2-methylimidazole through an in-situ solid-phase reaction. According to the in-situ synthesis method, use of a binder in the traditional carbon coating coating process is avoided, meanwhile, good coating bonding performance is achieved, in addition, the porous structure inherited from ZIF-8 changes the pore channel structure of the surface of the graphite workpiece, and the specific surface area of the surface part of the graphite workpiece is increased. The method is efficient and easy to implement and has a wide application prospect.

The application relates to a gluing mechanism and a gluing device, and belongs to the gluing mechanical field, wherein the gluing mechanism is used for gluing the surface of a product to be glued, and comprises a gluing head and a glue discharging assembly; the gluing head is provided with: a horizontal moving device one connected with a mounting plate, the mounting plate is driven to move horizontally by the horizontal moving device one; an axle support hinged to the mounting plate, the axle support is rotatably provided with a gluing roller; and a push-pull device hinged to the mounting plate, a push-pull movable end of the push-pull device is connected with the axle support, the push-pull device is used for driving the axle support to swing around the mounting plate, the swinging of the axle support can make the gluing roller contact the product to be glued, and then the horizontal moving device one drives the gluing roller to roll against the surface of the product to be glued. The gluing device of the application glues the product in a fixed state by the stable movement of the gluing mechanism, the gluing mechanism moves stably and has high precision, the roller does not shake in the moving process, and the uniform consistency of the glue film thickness is ensured.

The utility model discloses a base paper production glue scraping device, including frame, the frame inside installation has conveying assembly, and the frame outside wall is equipped with the motor of drive conveying assembly rotation, the frame top middle part is equipped with the top cover that fixes, the top cover upper surface one side is equipped with the glue storage box that fixes, the top cover top penetrates and is equipped with the glue outlet pipe that fixes, the top cover upper surface is equipped with the peristaltic pump of connection glue storage box and glue outlet pipe. In the utility model, setting frame, conveying assembly, top cover, glue storage box, glue outlet pipe, peristaltic pump and scraping assembly, through peristaltic pump, the glue in glue storage box is extracted and is dropped on the base paper surface through glue outlet pipe, along with conveying assembly drive base paper movement, the first scraper, second slide and third scraper of scraping assembly, in turn, scrape the glue on the base paper surface, and three scraper height gradually reduces, so that the glue can be more evenly spread on the base paper surface, need not adopt the complex structure to adjust the width of coating.

The application discloses an adjustable leveling device for raw material stirring, and relates to the technical field of raw material conveying, which comprises a conveyor, a conveying belt and a driving motor one, the conveying belt is arranged in the middle of the conveyor, the driving motor one is arranged on one side of the conveyor, a reserved groove is formed on the top of the two sides of the conveyor, and a fixed block is arranged on the inside of the reserved groove and above the conveying belt; the leveling plate and the stirring fork can turn and level the raw material on the surface of the conveying belt, so that the raw material on the surface of the conveying belt can be conveyed to a specified position; the leveling plate and the stirring fork are in constant contact with the surface of the conveying belt, so that the raw material can be evenly leveled on the surface of the conveying belt; the distance between the leveling plate and the stirring fork of the leveling structure and the conveying belt can be adjusted; when the fixed block is lifted, the leveling structure is guaranteed to stop rotating; when the height of the leveling structure is adjusted, the raw material on the surface of the conveying belt is prevented from being disturbed; and after the fixed block is placed, the leveling structure is not affected in work.

The present invention relates to a large-area halide perovskite single crystal heterojunction and a growth method thereof and an application in a nuclear radiation detector. The growth method of the large-area halide perovskite single crystal heterojunction comprises the following steps: placing a pretreated cesium-bromine-lead or cesium-bromine-bismuth substrate in a reagent bottle containing a perovskite precursor solution, and then sealing it; fixing the sealed reagent bottle in a water tank, and performing epitaxial growth of a large-area halide perovskite single crystal film on the substrate by an inversion crystallization method or a cooling crystallization method to obtain a large-area halide perovskite single crystal heterojunction. The method of the present invention has the advantages of low cost, simplicity and high efficiency; the perovskite single crystal heterojunction detector of the present invention can effectively suppress the dark current drift caused by ion migration under reverse bias, thereby obtaining a detection effect with high sensitivity and low detection limit.

The invention relates to the technical field of aerated concrete production, and discloses a ground turnover system for aerated concrete preparation, which solves the problem of poor use effect of the existing ground turnover system.The ground turnover system comprises a ground turnover mechanism, a mold feeding track and a transfer feeding track, the mold feeding track is located at one end of the ground turnover mechanism, and the transfer feeding track is located at the other end of the ground turnover mechanism; the transfer material conveying rail is located at the other end of the ground overturning mechanism, and the ground overturning mechanism is composed of a supporting frame, an L-shaped material overturning frame, a rotating shaft, a material overturning driving mechanism, a material receiving rail, a mold supporting mechanism, an aerated concrete mold bottom plate, a material receiving mechanism, a discharging rail, a bearing plate supporting mechanism, a bearing plate and a discharging mechanism; by means of the ground overturning system, aerated concrete blanks can be automatically overturned, automatic transferring is achieved, the working efficiency is improved, and meanwhile the concrete blanks are effectively prevented from being abraded in the overturning process.

The utility model belongs to the technical field of coating devices, and particularly relates to an adjustable film coating device which comprises a rack, a material groove, a coating roller, a bottom roller, a guide roller and a fine adjustment mechanism are arranged on the rack, the fine adjustment mechanism comprises a fixed seat, two transmission shafts are rotationally installed on the fixed seat, first gears are installed at the two ends of the transmission shafts, and the first gears are connected with second gears in a meshed mode. The second gear is installed on the first adjusting screw and the second adjusting screw, the first adjusting screw and the second adjusting screw are in threaded connection with a fixing base, a sliding rod is installed in the fixing base in a sliding mode, a first taper hole and a second taper hole which are attached to the conical end of the first adjusting screw and the conical end of the second adjusting screw in a matched mode are formed in the sliding rod, and the sliding rod is connected with the comma scraper roller through a fixing plate. The distance between the comma scraper roller and the bottom roller is accurately adjusted by rotating the adjusting screw I and the adjusting screw II, so that the thickness of a coating layer is accurately adjusted; the gear mechanism can enable the two sliding rods to move synchronously, and the moving stability of the comma scraper roller is guaranteed.

The utility model discloses a gluing machine structure capable of automatically adjusting a gluing head, which comprises a mounting fixing plate, an air cylinder fixing plate fixed on the mounting fixing plate, a rodless air cylinder fixed on the air cylinder fixing plate, an air cylinder sliding plate arranged on the side surface of the air cylinder fixing plate and connected with the rodless air cylinder, and an adjusting structure arranged on the air cylinder sliding plate. A gluing head structure, a scraper structure and a scraper fine adjustment structure are arranged on the adjusting structure; hot melt glue is coated through the glue coating head structure, and the glue coating width is adjusted through the scraper fine adjustment structure. The glue spreading device is reasonable in structural arrangement, glue spreading operation can be effectively achieved, glue spreading uniformity can be guaranteed, position translation of the scraper structure can be achieved through the scraper fine adjustment structure, glue outlet width adjustment is achieved, the use requirements of different glue outlet widths can be met, the use cost range of the glue spreading device is widened, and the glue spreading device is suitable for popularization and application. And the adjusting structure can ascend and descend, so that the gluing thickness is adjusted, operation is convenient and fast, applicability is high, and practicability is good.

The utility model provides a large-area silver mirror coating and paint spraying production device, and relates to the field of paint spraying production. The large-area silver mirror film coating and paint spraying production device comprises a conveying device, a mounting frame and a drying device, a storage box is arranged at the top of the conveying device, a discharging chute is formed in the bottom of the outer side of the storage box, a rubber sheet is obliquely arranged in the discharging chute, a pressure sensor is arranged in the storage box, and the pressure sensor is connected with the mounting frame. And one side of the storage box is fixedly connected with a material shoveling plate. According to the large-area silver mirror film coating and paint spraying production device, after the hydraulic pressure in the storage box reaches a certain value, a rubber sheet obliquely arranged in the discharging chute deforms, and at the moment, part of paint liquid in the storage box is sprayed out through a gap between the deformed rubber sheet and the storage box; and the paint liquid is finally sprayed to the top of the silver mirror which is conveyed by the conveying equipment and passes through the bottom of the storage box, so that the paint liquid is scattered to the top of the silver mirror in a uniform water flow form, the thickness uniformity of the paint liquid is ensured, and the processing quality is ensured.

The present invention belongs to the technical field of two-dimensional materials, specifically a kind of amorphous silicon dioxide two-dimensional material and its preparation method. The present invention uses pre-polymerized tetraethyl silicate, ethyl acetate and alkali source as raw materials, and prepares amorphous silicon dioxide two-dimensional material precursor by self-assembly reaction; utilizes easy high temperature, chemical etching and electrochemical corrosion sacrificial template method, and obtains amorphous silicon dioxide two-dimensional material by removing template; Compared with existing methods, this method has low cost, simple process, strong universality, and output improvement of 100-10000 times; product morphology is adjustable between 1μm-40μm, and thickness is adjustable between 1nm-10nm; the amorphous silicon dioxide two-dimensional material has excellent high temperature resistance (can withstand more than 1,000 degrees Celsius for a long time), good semiconductor properties and biocompatibility and other characteristics, and has broad application prospects in the fields of semiconductors and integrated circuits, biomedicine, aerospace and scientific research.