104results about How to "Reduce scatter" patented technology

This invention relates to the field of polymer material synthesis technology, specifically to a modified PVB resin and its preparation method. The invention introduces a fluorinated acetal monoaldehyde derivative containing fluorine into the PVB resin. This derivative is mixed with n-butyraldehyde and glyoxal, thereby undergoing an acetalization reaction with the 1,3-o-diol structure of the PVB molecular chain, incorporating the fluorinated side link into the PVB molecular chain. Utilizing the high electronegativity and high C-F bond energy of fluorine atoms, it shields against the intrusion of external corrosive media, inhibits oxidative yellowing, and improves weather resistance. Furthermore, the invention introduces glyoxal as a crosslinking agent, containing dialdehyde groups, which can react between adjacent polyvinyl alcohol segments, causing slight crosslinking between the originally linear PVB resin segments, improving the resin's shielding performance, further reducing the intrusion of external corrosive media, and enhancing the stability of the PVB resin.

This utility model belongs to the field of crane technology, specifically a crane for large water meter testing. It includes a crane body with an oil tank fixedly attached to its top. The oil tank has an oil inlet at its top. A first oil pump is connected to the side wall of the oil tank. A connecting plate is connected to the bottom of the first oil pump. Multiple brushes are fixedly attached to the bottom of the connecting plate. The brushes are arranged through the crane body. A fixing plate is provided at the bottom of the crane body. A first servo motor is fixedly attached to the side wall of the fixing plate. A drive wheel is fixedly attached to the output end of the first servo motor. The drive wheel and the crane body are in a rolling connection. The brushes and the drive wheel are correspondingly arranged. A cable reel is fixedly attached to the bottom of the fixing plate. A second servo motor is fixedly attached to the side wall of the cable reel. A pair of lifting ropes are slidably connected to the bottom of the cable reel. A hook is fixedly attached to the bottom of the lifting ropes. Multiple first circular holes are opened inside the crane body.

The utility model relates to the technical field of retroreflective sheeting provides an environmental protection type hard PVC retroreflective sheet, solves the problem that the reflectivity of existing retroreflective sheet is low, and the optical performance is relatively weak, and the surface layer anti -peeling impact force is not good, including the retroreflective sheet body, the retroreflective sheet body includes the protective surface layer, prism air microcapsule layer, degradable back film layer from top to bottom sequentially laminated, the prism air microcapsule layer includes wall material and core material, the core material includes prism reflection matrix layer and air layer, the protective surface layer is by PVC material layer and acrylic material layer composite, the prism reflection matrix layer is by several microangle pyramid prism structure unit close arrangement, the microangle pyramid prism structure unit is cutting obtains to cubic angle pyramid prism.

The utility model relates to garbage treatment technical field discloses a combined feeding system, including frame, the frame front end is provided with feeding mechanism, the frame inside fixedly connected with push mechanism, the frame inside is provided with the material collecting bin, the feeding mechanism includes two big arms connecting shaft, two big arms connecting shaftes all are rotatively connected in the outside of frame, the big arms connecting shaft is rotatively connected with hopper away from frame one end, the hopper outside rotatively connected with connecting rod axle, the connecting rod axle is rotatively connected in the outside of frame away from hopper one end, two big arms connecting shaftes between fixedly connected with the turnover pivot. In the utility model, the scheme does not need to build double -deck station house or deep foundation pit, and the frame is used as the basis support feeding mechanism, push mechanism and material collecting bin, after the feeding mechanism receives the material on the ground, the garbage is poured into the material collecting bin through lifting and overturning, and the push mechanism pushes the garbage to the compression box, and the construction cost and construction difficulty are greatly reduced.

The invention relates to the technical field of particle accelerators, in particular to a compact rotary thin-wall beam transmission vacuum system and a design method. The beam transmission vacuum system comprises: a first transmission unit, one end of which is provided with a first bifurcated thin-wall dipolar iron vacuum chamber to form a first branch and a second branch; one end of the second transmission unit is connected with the second branch, and a second bifurcated thin-wall dipolar iron vacuum chamber and a third bifurcated thin-wall dipolar iron vacuum chamber are sequentially arranged in the second transmission unit to form a third branch, a fourth branch and a fifth branch; the fixed treatment terminal is connected with the first branch; and rotating the treatment terminal to provide the beam to one of the plurality of treatment rooms in an alternative manner. According to the invention, an intensive architecture that a single rotary treatment terminal provides particle beams for a plurality of treatment rooms at the same time is adopted, so that the equipment manufacturing cost is greatly reduced, the equipment utilization rate is improved, and the treatment cost is reduced.

The utility model provides an ultra-radio frequency anti-aging transdermal collagen light beauty instrument. The ultra-radio-frequency anti-aging transdermal collagen light beauty instrument comprises a shell, and a skin contact area is formed at one end of the shell; the optical assembly comprises a halogen lamp tube, a light filtering part and a light transmitting part which are sequentially arranged at intervals, the halogen lamp tube and the light filtering part are arranged in the shell, at least part of the light transmitting part is exposed out of the skin contact area, and the light filtering part allows near-infrared light emitted by the halogen lamp tube to pass through and prevents non-near-infrared light emitted by the halogen lamp tube from passing through; the light transmitting piece is used for enabling near-infrared light formed after filtering of the light filtering piece to irradiate out of the shell, the halogen lamp tube and the light filtering piece are arranged in parallel, and the distance between the halogen lamp tube and the light filtering piece is not smaller than 2 mm; the controller is arranged in the shell, and the halogen lamp tube is electrically connected with the controller so as to control the halogen lamp tube to work. According to the technical scheme, the problems that in the prior art, a beautifying instrument is low in use safety and poor in beautifying effect are solved.

The application discloses an impact-resistant high-thermal-conductivity polyphenylene sulfide composite material and a preparation method thereof, and relates to the technical field of plastic processing. The preparation method comprises the following steps: S1, preparation of a highly oriented PPS fiber insert; and S2, preparation of the impact-resistant high-thermal-conductivity PPS composite material. The application provides an impact-resistant high-thermal-conductivity PPS composite material and a preparation method thereof. Firstly, the viscoelasticity of PPS resin is improved by using high-melt-viscosity and high-temperature-resistant aromatic polyamide, the interfacial compatibility of PPS / aromatic polyamide is enhanced by using a functionalized polysulfone-based resin as a compatibilizer, so that the stretchability and the tensile orientation degree of PPS are improved; PPS composite fibers are obtained by using a melt spinning machine, and a fiber solid-phase high-multiple-stretching-annealing forming process is established, so that the high-toughness and highly oriented PPS composite fiber material is obtained.

This invention discloses a protective garment for epicondylitis of the humerus based on an antibacterial and thermally conductive composite material, belonging to the field of medical protective gear technology. It includes a forearm support and an upper arm support, which are rotatably connected by an adjusting mechanism. The upper arm and forearm sleeves are 3D printed using an antibacterial and thermally conductive composite material, which comprises a polylactic acid matrix, a graphene oxide-silver nanoparticle-carbon nanotube ternary composite filler, and phase change microcapsules, with a thermal conductivity of 1.5-4.0 W·m. ‑1 ·K ‑1 With an antibacterial rate of ≥95%, it solves the problems of poor thermal conductivity, lack of antibacterial properties, and uneven heat therapy in existing protective gear.

The utility model relates to sealing device technical field, concretely relates to a kind of automatic sealing device of powder material sampling barrel, including adjustable height base, the upper portion of base is provided with support plate, the upper surface of support plate is provided with the sampling barrel body for receiving material, the top of sampling barrel body is detachably provided with receiving pipe, support device for fixing the height of sampling barrel body is provided between support plate and base, receiving pipe detachably arranged on the top of sampling barrel body and good sealing design, avoid the leakage of powder material in repeated sampling process, protect the environment, ensure the health of operator.

The present application relates to the technical field of polyester material modification, and particularly relates to a high-transparency polyethylene naphthalate material, a preparation method and application, aiming at the problems of fast crystallization rate of the PEN material in the process of processing and molding, easy crystallization of thick products, light transmittance reduction caused by the crystallization, and insufficient material toughness, the present application introduces a diol monomer containing a side group and a flexible chain segment diol monomer into the PEN melt polycondensation process for copolymerization, wherein the diol containing a side group introduces a steric hindrance structure in the molecular chain to destroy the regular packing of the PEN molecular chain, thereby inhibiting the material crystallization behavior and improving the light transmittance of the thick product; the flexible diol introduces a flexible chain segment in the molecular chain to increase the free volume of the molecular chain and improve the molecular chain movement ability, thereby improving the material toughness. Through the above-mentioned synergistic copolymerization modification method, the crystallization tendency of the PEN material can be effectively reduced, the obtained PEN thick product has excellent light transmittance and toughness at the same time, and is suitable for the preparation of high-performance transparent polyester products.

This invention relates to the field of lighting technology, and in particular to a white light supercontinuum fiber combiner, a light-emitting unit, and a method for fabricating the same, including N 2 One first input optical fiber, (N-1) 2 The first input fibers consist of a second input fiber and a square output fiber. Multiple first input fibers are arranged in a square array. One or more second input fibers are respectively disposed in the gaps formed between the multiple first input fibers. The square output fiber is fused to the tapered fused ends of the first and second input fibers. N is a natural number greater than or equal to 2. This invention's white light supercontinuum fiber combiner can transmit spectral energy with high quality, offering superior color reproduction compared to traditional white light illumination. It also meets the application requirements for high illumination brightness, effectively solving the problem of insufficient brightness in existing lighting devices.

The invention relates to the field of semiconductor material physical property regulation and control and power device optimization design, and particularly discloses a method for regulating and controlling the carrier mobility of beta-type gallium oxide (beta-Ga2O3) based on triaxial stress. Gallium oxide serving as a fourth-generation ultra-wide band gap semiconductor has high breakdown field strength and good stability, but the carrier mobility of the gallium oxide is low, and application of the gallium oxide in high-power devices is limited. The electron mobility of beta-Ga2O3 is improved from 85.8 cmV <-1 > s <-1 > to 170.9 cmV <-1 > S <-1 > by applying-4% of compressive strain to 4% of tensile strain and is improved by nearly 100%, and the mechanism that the energy band slope is increased, the group velocity is increased, the effective mass is reduced and the scattering rate is reduced due to stress is disclosed. The method is simple in process, low in cost and suitable for manufacturing high-performance wide-bandgap semiconductor power electronic devices.

The application provides a cover plate and a preparation method thereof and an electronic device. The cover plate comprises: an anti-glare layer, the anti-glare layer comprising a substrate and a microstructure layer, the microstructure layer being arranged on the surface of the substrate along the thickness direction of the substrate; an anti-reflection layer, the anti-reflection layer being arranged on one side of the anti-glare layer, the anti-reflection layer being a multilayer structure, the refractive index of the multilayer structure gradually decreasing from the side close to the anti-glare layer to the side away from the anti-glare layer; and an anti-fingerprint layer, the anti-fingerprint layer being arranged on the side of the anti-reflection layer away from the anti-glare layer. The cover plate can further reduce the reflectivity, improve the eye protection effect and appearance performance on the basis of ensuring the anti-glare effect.

This disclosure relates to the field of underwater optical imaging technology, specifically providing an underwater microscopic observation instrument, including a light source chamber and an imaging chamber connected by a focusing mount. The imaging chamber contains an imaging unit for imaging underwater targets between the light source chamber and the imaging chamber. The light source chamber includes a first housing, optical components, and a driving mechanism. The optical components include a laser and a dimming assembly. The laser outputs a pulsed laser beam. The dimming assembly includes a reflector, a conical mirror, and a lens arranged sequentially along the optical axis of the pulsed laser beam. The conical reflector of the mirror reflects the pulsed laser beam, forming a first reflected beam. The first reflected beam is reflected by the inner surface of the reflector to form a conical second reflected beam, which passes through the lens and converges on the optical axis to form an illumination layer. The driving mechanism is used to adjust the position and thickness of the illumination layer to improve the clarity of the underwater imaging of the target by the imaging chamber.

The present application relates to the technical field of millimeter wave communication, and particularly relates to a V / W wave band low-loss metal waveguide and a preparation method thereof. The preparation method provided by the present application combines metal additive manufacturing, inner wall conductive metal deposition, super-smooth inner surface polishing and external single-point diamond turning technology. The waveguide manufactured by the composite process chain comprises an aluminum-magnesium (zirconium) alloy waveguide structure manufactured by laser beam melting additive manufacturing, a copper (silver) inner wall coating deposited by chemical reduction plating technology, an inner wall surface with a roughness of less than 50 nm Ra processed by abrasive flow machining, and a self-aligning flange with a flatness of less than 0.1 microns and a butt joint surface roughness of less than 20 nm Ra processed by super-precision machining. The present application improves the electrical performance, thermal interface consistency and assembly accuracy. The preparation method of the present application solves the problems of high insertion loss of the existing waveguide structure in high-frequency applications, high-cost mode coupling caused by large structural assembly errors, uncontrollable inner wall roughness and the like.

The invention relates to the technical field of semiconductors, and provides a light-emitting diode, a preparation method thereof and a communication system. The light emitting diode comprises a substrate, a first semiconductor layer, an active layer and a second semiconductor layer which are stacked in sequence. The active layer comprises at least one group of quantum well layers and quantum barrier layers which are periodically and alternately stacked; the quantum well layer comprises an In component; the active layer further comprises at least one covering layer; the covering layer is located between the quantum well layer and the quantum barrier layer; the material of the covering layer is selected from a III-V group nitride semiconductor material, and the bond energy of a chemical bond formed by a metal element contained in the III-V group nitride semiconductor material and a nitrogen element is higher than the bond energy of In-N formed by an indium element and the nitrogen element in the quantum well layer. Through the above arrangement, mutual diffusion of In atoms in the quantum well containing the In component is effectively inhibited, a clear interface of the quantum well layer is maintained, and high-speed LED communication is further realized.

This invention relates to a high thermal conductivity rare-earth copper-chromium alloy and its preparation method, belonging to the field of alloy material technology. The chemical composition of the copper-chromium alloy includes: 0.5-1.0 wt% Cr, 0.01-0.05 wt% Zr, 0.005-0.015 wt% Ce, no more than 0.005 wt% unavoidable impurity elements, and the balance being Cu. By adding trace amounts of cerium and zirconium to the copper-chromium alloy, this invention not only utilizes the grain boundary purifying effect of cerium in the alloy system and reduces the scattering of thermally conductive electrons by solid-solution Cr and Zr atoms, thereby significantly reducing the adverse effects of solid-solution chromium and zirconium atoms on the thermal conductivity of copper, but also utilizes the synergistic effect of zirconium and chromium to significantly improve the thermal conductivity, stress relaxation resistance, and high-temperature strength of the copper-chromium alloy. The high thermal conductivity rare-earth copper-chromium alloy of this invention has excellent thermal conductivity and high-temperature strength, making it suitable for large-scale application as an electrical contact material.

The application relates to the field of intelligent navigation of fire-fighting robots, and discloses a smoke environment sensing and obstacle avoidance navigation method and system based on a fire-fighting robot; the method collects smoke concentration, visible light images, infrared thermal images, laser radar point clouds, laser radar echo intensity, millimeter wave radar echo and robot pose data during the travel of the fire-fighting robot; smoke degradation credibility of multiple azimuth sectors is calculated according to the above data, and a layered environment map including an entity obstacle layer, a smoke shielding layer and a thermal risk layer is constructed; a comprehensive passing cost map is generated according to the layered environment map, and an obstacle avoidance navigation path is planned. When there is a low credibility smoke shielding area in front of the path, the fire-fighting robot is controlled to perform an active detection action, and the map layer attributes are corrected according to the re-collected multiple frames of sensing results, and a return and evacuation safety corridor is maintained.

The present application aims at the problem that existing thermal insulation materials are difficult to have ultra-low thermal conductivity, high flame retardancy and dynamic flexibility, and proposes a flexible flame-retardant thermal insulation composite material and a preparation method thereof. The modified amorphous silicon dioxide functional powder is prepared by an innovative non-mechanical compression densification process, and then is physically combined with a flexible fiber porous substrate and naturally solidified by means of an alternating electric field treatment process. The finally obtained material has excellent flexibility, strong operability, can adapt to complex application scenarios, high flame retardancy ensures safety in use, and excellent thermal insulation effectively reduces heat conduction. The material can be widely applied to the thermal management field such as spacecraft thermal protection and industrial pipeline insulation, and is expected to promote the technological innovation and development of related industries.

The application discloses an in-situ environmental device suitable for in-situ loading and heating of metal materials and relates to the field of material mechanical property testing.The device comprises a shell base, a sample clamping assembly, an environmental cavity, a loading mechanism, a force sensor, a heating assembly and a thermocouple, the environmental cavity is composed of a light transmission cylinder, a supporting cylinder and a supporting cylinder base, the heating assembly is installed on the bottom surface of an upper clamp and covers the periphery of a sample, the sample is locally heated through a silicon carbide heating sheet, the loading mechanism is arranged in the shell base to apply an axial load to the sample, the force sensor collects load signals in real time, and the thermocouple monitors the temperature of the sample area and feeds back to a temperature control unit.The device has compact structure and good imaging compatibility, and can realize in-situ testing and three-dimensional damage evolution analysis of metal materials under thermal-mechanical coupling conditions.

The utility model discloses a die pressing device for refractory brick production. The die pressing device comprises a rack, a die assembly, a hydraulic assembly, a discharging assembly and a feeding assembly, wherein the die assembly, the hydraulic assembly, the discharging assembly and the feeding assembly are arranged on the rack. The feeding assembly drives a feeding frame through a mounting plate, a pushing air cylinder and a sliding structure, refractory brick materials are accurately fed into a mold cavity of the mold assembly, and scattering of the materials is avoided. The mold assembly comprises an upper mold, a lower mold, a demolding plate and a material surrounding plate, and the material surrounding plate standardizes materials and is matched with the excess material recycling structure to collect overflowing materials. The excess material recycling structure is composed of a recycling plate, a recycling opening, a collecting plate, a collecting pipe and a collecting box, materials overflowing from the side edge of the material surrounding plate are automatically recycled, and waste is reduced. The hydraulic assembly drives the upper mold and the demolding plate through the first hydraulic cylinder and the second hydraulic cylinder and is matched with the limiting rod to ensure stable pressing and demolding. Through precise feeding, efficient excess material recovery, stable pressing and automatic operation, the production efficiency of refractory bricks is remarkably improved, and material waste and manual cleaning cost are reduced.

This utility model relates to the field of seedling transplanting technology and discloses a seedling transplanting device, including a seedling taking component, comprising a first seedling taking plate and a second seedling taking plate, which are rotatably connected. It also includes a holding component, comprising two vertical rods and two handles, with the two vertical rods respectively fixedly installed on the first and second seedling taking plates. In this utility model, when taking seedlings, the first and second seedling taking plates are inserted into the soil and rotated to form a cylindrical soil mound. Then, two sliders are slid to unlock the two handles, and the two handles are rotated, causing the first and second seedling taking plates to slide closer together, compressing the soil mound between them, thus making the soil mound more compact and firm. At this point, releasing the two sliders locks the first and second seedling taking plates, allowing the soil mound and seedling to be lifted and transplanted. This reduces the possibility of the soil mound scattering during transplanting and improves the success rate of transplanting.

The application provides a parabolic antenna. The parabolic antenna comprises a feed source assembly, a support rod and a parabolic reflector. The feed source assembly comprises a feed source cover and a PCB oscillator arranged in the feed source cover. The two ends of the support rod are connected to the focal point of the parabolic reflector and the feed source cover respectively. The feed source cover comprises a first sub-cover and a second sub-cover which are connected to each other. The first sub-cover is farther away from the support rod than the second sub-cover. In the direction towards the support rod, the first sub-cover is in a cylindrical shape with a diameter which is first tapered and then expanded. The second sub-cover is in a cylindrical shape or in a cylindrical shape with a diameter which is expanded by less than or equal to 5%. The shape of the connection between the first sub-cover and the second sub-cover changes abruptly. The parabolic antenna has a simple structure, a small number of parts, a low cost, high electrical performance and high environmental reliability.

This invention discloses a high specific surface area mesoporous tin oxide powder and its preparation method. The method includes: dissolving a tin source in a mixed solvent of alcohol and deionized water, adding a ketone complexing agent and a nonionic dispersant, and stirring to form a tin-based complex precursor solution; then transferring the solution to a hydrothermal reactor for hydrothermal aging treatment, causing the precursor solution to hydrolyze and condense, forming gel particles in situ; after solid-liquid separation, washing with alternating anhydrous ethanol and dilute ammonia water, and drying to obtain the precursor powder; finally, performing staged heating calcination under an air-nitrogen mixed atmosphere, first removing organic components at low temperature, and then completing the crystal phase transformation at high temperature to obtain rutile phase SnO2 powder. The powder has an average particle size of 8–15 nm and a specific surface area of ​​85–110 m² / g. 2 The powder has a pergola size of 3–6 nm and good dispersibility. This invention effectively suppresses grain agglomeration through complexation regulation, hydrothermal-sol-gel coupling, and gradient atmosphere calcination. The prepared powder is suitable for applications such as gas sensors, lithium-ion battery anodes, or transparent conductive films.

The application discloses a kind of preparation methods for high transparent polyethylene film additive, belong to polyethylene technical field, to solve the technical problems of high transparent polyethylene film in prior art, high production cost, aging resistance performance needs to be further provided, including nucleating agent grafting quaternary ammonium salt modified nanosilica and low-density polyethylene are mixed, initiator is added, by melt grafting reaction in twin-screw extruder, reaction is finished, extrusion, cooling, granulation, obtain intermediate I;Intermediate I, antioxidant 168, antioxidant 1076, zinc stearate, antistatic agent 1800 and mustard acid amide are mixed, to obtain high transparent polyethylene film additive;The high transparent polyethylene film additive prepared in the application is mixed with low-density polyethylene, and the processing performance is good, to obtain the high transparent polyethylene film with lower cost;This film not only has good transparency and tensile property, but also has good aging resistance.

The utility model discloses a big gyration paper cutting machine is with paper leakage collection device, including frame, install on the conveyance subassembly of frame, paper cutting subassembly and paper scrap collection subassembly, the conveyance subassembly is including install on the first conveyance spare of frame, install on the second conveyance spare of first conveyance spare one end, be equipped with paper cutting channel between first conveyance spare with second conveyance spare, paper cutting subassembly includes the movable element of installing on frame, install on the paper cutting spare of movable element, paper scrap collection subassembly includes the collection conveyance spare of installing on frame, install on the collection element of collection conveyance spare, the paper cutting spare is used for cutting the paper spare on paper cutting channel and carries out the section, the collection element includes the support plate of installing on the both sides of collection conveyance spare, install on the collection hopper of support plate, the big gyration paper cutting machine is with paper leakage collection device of the utility model, can reduce paper scrap and pollute scattering.

The invention discloses a transparent aerogel heat-insulation self-cleaning coating as well as a preparation method and application thereof. The transparent aerogel heat-insulation self-cleaning coating comprises the following components in parts by mass: 30-50 parts of film-forming resin; 5 to 15 parts of modified silicon dioxide aerogel; 1 to 5 parts of rare earth doped tungsten trioxide thermochromic particles; 2-8 parts of a graphene / manganese dioxide porous network; 1 to 3 parts of ionic liquid modified LDH nanosheets; the auxiliary agent comprises the following components in parts by weight: 0.5-2 parts of a dispersing agent, 0.2-0.8 part of a flatting agent, 0.1-0.5 part of a defoaming agent and 1-3 parts of a curing agent; and 30-60 parts of a solvent. The invention has the following beneficial effects: high transparency and heat insulation are cooperated: the nanoscale aerogel and the functional particles reduce light scattering, and the visible light transmittance is greater than or equal to 65%; the multilayer structure reflects infrared rays, the heat insulation efficiency is larger than or equal to 80%, energy consumption is remarkably reduced, the lasting self-cleaning capacity is achieved, the super-hydrophobic surface enables stains to be easily washed by rainwater, glass is kept clean, the mechanical performance is excellent, the LDH-fiber composite structure improves the wear resistance and adhesive force of the coating, intelligent temperature adjustment is achieved through the thermochromic characteristic, and the performance is stable in the environment of-40 DEG C to 120 DEG C.

This utility model relates to the field of cellulose ether distribution technology and discloses a vibrating cellulose ether distribution device, including a rotary vibrating screen body and a discharge assembly. The discharge assembly includes a discharge cylinder fixedly installed on the rotary vibrating screen body and a flexible guide tube, the upper end of which is fixedly installed inside the discharge cylinder. A sliding retracting assembly is longitudinally slidably inserted into the discharge cylinder, and the lower end of the flexible guide tube is fixedly connected to the sliding retracting assembly. In use, the movable rod can be unlocked by pulling the pull ring, and then the movable rod can be slid upward. After the movable rod rotates upward by 90 degrees, the limiting block will block the semi-circular rod, so that the movable rod is just in a vertical state. At this time, pressing down on the sliding plate and the movable rod will drive the sliding rod to slide downward and thus drive the flexible guide tube to unfold, which can extend the material conveying path into the receiving container, reduce the scattering of powdery materials, and thus reduce pollution to the working environment and material waste.

The utility model relates to tobacco machinery technical field provides a kind of turnover gripper and its robot, wherein, turnover gripper includes connecting frame, multiple embrace fork components, multiple drive components and at least one press-down component, multiple embrace fork components are oppositely and rotatably arranged on connecting frame, multiple embrace fork components mutually enclose and form gripping space, multiple embrace fork components have the first gripping state of opening gripping space and the second gripping state of mutually gathering closing gripping space in the process of rotation;Multiple drive components are arranged on connecting frame, and are connected with embrace fork component, and drive component is used to drive embrace fork component to rotate;Press-down component is connected on connecting frame, and press-down component is used to pre-press tobacco leaf in gripping space into special tobacco frame. The present application can realize the single repetitive work of complete gripping replacement, to improve production efficiency, while can reduce tobacco leaf scattering and overflow phenomenon, improve the management level of entire tobacco processing and warehousing link.

The utility model provides a modularized multifunctional file cabinet, which relates to the technical field of file cabinets and comprises a file cabinet main body, a drawer main body is connected in the file cabinet main body in a sliding manner; two guide sliding blocks are symmetrically and fixedly connected to the outer part of the drawer main body; two guide sliding rails are symmetrically and fixedly connected in the file cabinet main body; the two guide sliding blocks are connected into the two guide sliding rails in a sliding mode correspondingly. Two protective shells are symmetrically and fixedly connected to the front part of the file cabinet main body; the top end face of the file cabinet body is fixedly connected with four splicing blocks in a rectangular array shape. And when the drawer main body is completely pulled out, the limiting clamping frame can be reset along with springback of the connecting spring, so that the limiting clamping frame is inserted into the limiting clamping groove to fix the position of the drawer main body, and the problems that the mobility of personnel is large, when the drawer is pulled out for taking documents, the body parts of passing personnel are likely to touch the drawer, and the safety is high are solved. And the problem that the drawer is accidentally closed is solved.