43results about How to "Eliminate security risks" patented technology

The application relates to the technical field of a wire drawing verticality detection device, and discloses a wire drawing machine wire drawing verticality detection device, which comprises a curved extension plate, the end of the curved extension plate is rotationally connected with a push plate, the bottom of the curved extension plate is rotationally connected with a push rod, the end, away from the curved extension plate, of the push rod is rotationally connected with a bent rod, and the lower surface of a protection telescopic plate is fixedly connected with a supporting telescopic rod. The protection mechanism is arranged, when the lifting frame moves upwards, the pull ring is driven to move upwards, at this time, the pull ring pulls the protection telescopic plate to extend upwards, so that the same height as the whole metal wire is ensured, the setting of the protection telescopic plate effectively prevents the metal wire from being excessively stretched, broken and splashed to both sides by the elastic force, the metal wire is blocked by the protection telescopic plate, and the safety hazard is eliminated.

The utility model provides a kind of assembly T beam negative bending moment tensioning construction work frame, left front and left rear retractable chain are pulled to left front and left rear movable guardrail right upper, and then left movable guardrail and bottom left movable platform are pulled to right upper, so that left movable guardrail is close to front and rear fixed guardrail right upper, bottom left movable platform is rotated into inclined state right upper, right front and right rear retractable chain are pulled to right front and right rear movable guardrail left upper, and then right movable guardrail and bottom right movable platform are pulled to left upper, so that right movable guardrail is close to front and rear fixed guardrail left upper, bottom right movable platform is rotated into inclined state left upper, folding is realized, and then assembly T beam wet joint position can be lowered, and it can be unfolded after being lowered.The utility model can eliminate safety risk, prevent the occurrence of safety accident, and ensure that assembly T beam negative bending moment tensioning construction work is carried out normally and safely.

The application provides an XGBoost training method and system based on multi-party privacy protection, and belongs to the technical field of machine learning; a key pair is generated for each user by encoding feature values in a one-hot encoding mode; data is encrypted by using a single instruction multiple data method and uploaded to the cloud; for a partition scene corresponding to a data type of the encrypted data, the encrypted data of each user is aggregated to construct an encrypted data set; based on the encrypted training set, a secure training algorithm is used to generate an XGBoost model in a ciphertext state for encrypted prediction services; wherein the secure training algorithm comprises secure gain calculation, secure division calculation, secure sigmoid calculation and secure tree building calculation. The private data of multiple participants can be encrypted respectively, privacy leakage caused by direct use of plaintext data is avoided, and the encrypted data can be used for offline training after being uploaded, so that practicability and deployment flexibility are considered.

The invention belongs to the technical field of dibromohydantoin production, and particularly provides a dibromohydantoin synthesis method which comprises the following steps: S1, preparing a raw material aqueous solution, namely respectively mixing dimethyl hydantoin, sodium bromide and liquid caustic soda NaOH with deionized water to form a dimethyl hydantoin aqueous solution, a sodium bromide aqueous solution and a liquid caustic soda NaOH aqueous solution; s2, premixing the raw material aqueous solution, namely mixing the aqueous solution of dimethyl hydantoin, sodium bromide and caustic soda liquid NaOH prepared in S1 to obtain a premix; s3, electrochemical in-situ bromination reaction: introducing the premix into a micro-channel reactor provided with an electrolysis electrode, and applying current to the premix to obtain a dibromohydantoin initial solution; and S4, crystallizing, separating and drying the product, carrying out cooling crystallization through a three-stage stepped cooling method to obtain a dibromohydantoin crystal, carrying out centrifugal separation to obtain a dibromohydantoin wet product, and then drying to obtain a dibromohydantoin finished product. The method can improve the generation stability and the product quality of the dibromohydantoin.

The application discloses a top-opening drum washing machine inner drum positioning method and a washing machine. The method comprises the following steps: after setting a washing program, the inner drum is controlled to rotate at a preset low speed; the rotation angle of the inner drum is collected and the deviation of the rotation angle from a target angle is calculated; the motor speed is controlled by PID closed-loop regulation with feedforward compensation based on the deviation, wherein the feedforward compensation amount is calculated according to the load weight, the speed fluctuation and / or the deviation change rate; when the deviation is less than a preset threshold, segmented braking is performed until the inner drum is locked at the target angle position; if the locking fails, the inner drum is reversely rotated to a preset angle, and the segmented braking is retried with corrected braking parameters. The application combines PID regulation with feedforward compensation and segmented braking, introduces a failure retry and parameter self-adaptive correction mechanism, and realizes high-precision, impact-free and high-reliability positioning of the inner drum.

The invention relates to the technical field of circulating carriers, and discloses a rollover self-unloading type goods standardized circulating logistics carrier which comprises a logistics carrier body used for goods transportation, the logistics carrier body is a rectangular box body composed of a bottom frame and a frame installed on the periphery of the bottom frame, and the upper end face of the box body is open and used for bearing and transporting goods; a side frame door is arranged between two adjacent side frames of the box body, the upper end of the side frame door is rotatably connected with the upper ends of the two side frames through a rotating shaft, the lower end of the side frame door and the box body are detachably connected with a bottom frame through two sets of self-locking mechanisms, each self-locking mechanism comprises a connecting rod, and the connecting rods are rotatably connected with the bottom frame of the box body through a first support. And a lock catch is vertically and fixedly mounted at one end of the connecting rod. During unloading, the box body is inclined towards one side of the side frame door around the second bracket; the first chain is loosened, so that the connecting rod rotates under the action of gravity, and the lock catch is automatically separated from the side frame door; and the side frame door is automatically opened under the action of gravity.

The utility model discloses a portable wall line drawing tool, which aims to solve the technical problems of high risk and low efficiency in high-altitude line drawing operation in the prior art. The tool mainly comprises an extension module, a sliding module and an extension rod. The core improvement lies in that the extension module is composed of an extension outer box with a sliding groove and an extension inner box sleeve with a sliding groove. By setting a smooth transition groove at the end of the extension inner box, smooth sliding of the sliding module in the full length range of the extension is realized. The sliding module is internally provided with an elastic line drawing module (such as a line drawing roller or a line drawing pen) and a lever type constant pressure ink supply mechanism, which ensures that the line drawing head can adapt to the concave-convex wall surface, keeps the line drawing pressure stable and the ink supply uniform. In addition, the level, laser and continuous scale line are integrated, which assists in rapid and accurate positioning. The utility model can enable the operator to safely complete the continuous and smooth line drawing operation on the high wall surface on the ground, and significantly improves the construction efficiency and quality.

The utility model relates to the technical field of plastic processing discloses an automatic expansion machine of insulating tube with automatic feeding, including main part assembly, including expansion machine body, expansion machine body one side is fixed with switch, expansion machine body one side is fixed with the material collecting box, feeding assembly, set up in expansion machine body, including feeding piece, the feeding piece includes the feeding roller. The utility model has the advantages that: a plurality of insulating tubes are placed in the special storage box in advance, the insulating tubes can be discharged from the storage box one by one to realize automatic feeding, which is convenient for operators to take, and the whole insulating tube expansion work can be carried out more efficiently and smoothly, the work efficiency and the convenience of operation are effectively improved, and the surface of the insulating tube can be prevented from being contaminated by dust, impurities and other foreign matters, the quality of the insulating tube is guaranteed, the insulation performance is maintained, and the risk of potential safety hazards caused by subsequent wrapping wire cores is eliminated.

A method for the synergistic lithium and phosphorus supplementation and targeted regeneration of lithium iron phosphate (LFP) cathode materials is disclosed, involving a regeneration and repair method for retired LFP cathode materials. This method aims to address the technical problems of poor uniformity, poor electrochemical performance, and poor safety associated with existing direct regeneration methods for retired LFP cathode materials. The method comprises: 1. Cathode material stripping and crushing; 2. Preparation of an aqueous repair solution using a reducing agent, lithium salt, and phytic acid; reaction of the degraded LFP black powder in the repair solution; filtration, drying, and segmented sintering to completely reconstruct the material's intact crystal structure and coat it with a highly conductive carbon layer. The regenerated LFP cathode material exhibits a discharge specific capacity of up to 149.7 mAh g⁻¹ at a current density of 1 C. ‑ ¹, and it is cycle-stable, making it suitable for use in the battery industry.

This invention provides an anti-static endoscope camera system host, relating to the field of endoscope technology. It includes a housing with four terminals mounted on its side wall. The side wall of the housing has a grounding structure, which includes a conductive frame, a conductive component for conducting static electricity, a discharge block for discharging static electricity, and a protective component for shielding the discharge block. The conductive frame is electrically connected to the housing and is made of copper. The inner wall of the conductive frame has a conductive component, which includes a retaining plate slidably connected to the inner wall of the conductive frame. The retaining plate is also made of copper. This invention, by setting a grounding structure, can promptly conduct static electricity generated on the housing to the ground, thereby minimizing the accumulation of static electricity on the housing and preventing damage to electronic components inside the housing. This extends the service life of the host and, to a certain extent, eliminates safety hazards.

The invention provides a horizontal furnace hot-state roller changing device and method.The roller changing device comprises a recycling bin and a pushing bin which are arranged side by side, the recycling bin is used for storing old furnace rollers extracted from a hearth, the pushing bin is used for storing new furnace rollers to be replaced, and the recycling bin and the pushing bin are adjacent side by side; the complete replacement process of pulling out an old furnace roller and pushing a new furnace roller can be completed, and one-time hoisting disassembly and reassembly are achieved. The two sets of operation procedures do not interfere with each other and are connected with each other, the transfer problem of old furnace rollers does not need to be considered midway, replacement time can be greatly shortened, and efficiency is improved. And meanwhile, corresponding heat insulation measures are set for the recovery bin, so that the recovery bin can adapt to hot-state roller replacement in a non-stop state, the whole roller replacement process is completed through remote control, safety risks are eliminated, and damage to operators caused by high temperature is avoided. In addition, the roll changing device is small in size, can adapt to various working environments with narrow spaces, and is high in adaptability.

The utility model belongs to the technical field of angle steel production lines, particularly relates to a shearing device for an angle steel production line, and aims to solve the problems that in the using process of an existing shearing device, sheared angle steel is inconvenient to automatically collect and needs to be manually carried, so that sharp edges of the sheared angle steel are easily scratched, and large risks exist. According to the scheme, the device comprises a machining table, a support and a collecting box, the support is fixedly installed at the top of the machining table, and the collecting box is installed on one side of the machining table; the hydraulic cylinder is fixedly installed at the top of the support, and an output shaft of the hydraulic cylinder is fixedly connected with a shearing tool; according to the angle steel shearing and collecting device, the sheared angle steel sections are automatically conveyed to the collecting box while angle steel is pressed and sheared, full-process automation of positioning, shearing and collecting is achieved, the scratch risk caused by manual carrying of sheared parts is thoroughly avoided, and the structure of the device is simplified.

The utility model relates to air treatment equipment technical field especially relates to a kind of hidden nail frameless air conditioner box structure.The utility model is formed by air conditioner box structure of panel, fastening screw, turn bag hole assembly;Panel is connected by fastening screw and turn bag hole with hidden nail type, and the corner of air conditioner box is equipped with reinforcing corner piece to strengthen connection strength, and the inside of panel is equipped with reinforcing rib to promote rigidity, and wind baffle is additionally arranged in box cavity to realize secondary structure strengthening, panel joint is equipped with panel material, panel inter material and sealant to realize heat preservation sealing, and access door and panel assembly form integral sealing structure.The utility model is strengthened by multilayer structure, cancels traditional main frame still guarantee structure strength, and hidden nail design makes the outer surface of equipment without exposed nail head, with aesthetic property and security, all adopt fastener connection without welding procedure, improve production installation efficiency, while heat preservation sealing structure guarantees air treatment effect, and it is suitable for air treatment system in people flow dense place.

This invention introduces a gravity-type wharf fixed crane foundation structure and its construction method. The foundation structure includes a small caisson assembly, a riprap foundation, precast blocks, a breast wall, and a top concrete layer. The small caisson assembly is installed on the riprap foundation. Precast blocks are placed on the riprap foundation on both sides of the small caisson assembly, and a breast wall is installed on each precast block. A top concrete layer is poured on top of the small caisson assembly. The small caisson assembly includes multiple small caissons connected by the poured top concrete layer. A bottom concrete layer is provided inside each small caisson, and embedded reinforcing bars are installed within the bottom concrete layer, which is connected to the top concrete layer via the embedded reinforcing bars. Through this design, this application eliminates the problem of grout leakage caused by deformation or displacement of the formwork during concrete pouring in traditional gravity-type block wharf fixed crane foundation construction, leading to poor sealing at the joint between the formwork and the riprap foundation.

The invention belongs to the technical field of Raman spectrum, and particularly relates to an environmental parameter self-adaptive Raman spectrum explosive identification instrument calibration method which comprises the following steps: constructing a Raman spectrum detection system; executing calibration, and controlling the laser source to irradiate the built-in standard substance module; a stable built-in standard substance module is integrated in the identification instrument, dependence on a real explosive sample is eliminated, a light source irradiates a harmless built-in standard substance during calibration, safety risks and regulatory obstacles caused by storage and use of dangerous goods in public places are fundamentally eliminated, and in addition, the identification instrument is convenient to use and popularize. The calibration process can be automatically triggered when external conditions change, drift of core parameters of the instrument caused by temperature drift, mechanical stress and the like can be quantified and compensated in real time through a wavelength-pixel coordinate correction relation established through polynomial fitting, it is ensured that wavelength coordinates output by the instrument are accurate in the on-site environment, and the calibration accuracy is improved. And a solid foundation is laid for subsequent accurate identification.

This invention relates to a longitudinal loading test fixture and method for toothed concrete sleepers. Two support components are spaced apart along a second direction, and each support component has two mounting slots spaced apart along a first direction. The openings of the mounting slots face upwards, allowing the four mounting slots of the two support components to be fitted to the four rail bearing slots of the two sleepers. Two force transmission components are correspondingly connected to the opposite sides of the two sleepers and located at the transverse center of the sleepers, enabling vertical loading between the two sleepers. This forms a symmetrical longitudinal loading test for the sleepers. The torque generated by the loading is balanced by the opposite sleeper, avoiding interference with the test results and fundamentally eliminating the safety risks caused by torque. Furthermore, it eliminates the need for further forced constraint on the sleepers, simplifying the loading process. Moreover, by utilizing this symmetrical loading principle, parallel fatigue testing of dual sleeper samples is achieved, simultaneously improving fatigue testing efficiency.

A suspended construction device for waterproof membrane is disclosed, relating to a construction device for waterproof membrane on basement side walls or culvert exterior walls. It includes a membrane container, a suspension device, and a pressing device. The membrane container has an opening on one side, and stiffening rings are respectively installed at both ends of the body. A cross is installed on the inner ring of the stiffening ring. The suspension device includes a load-bearing rod and an upward lifting cable. The pressing device has a variable rod fixed to the top of the cross, a pressing roller installed at the lower end of the variable rod, a small crossbar installed between the center of the cross and the variable rod, and a spring installed between the lower end of the cross and the variable rod. Control ropes are provided at both ends of the pressing roller. The advantages of this utility model are: waterproof membrane can be constructed on basement side walls or culvert exterior walls without the need for scaffolding, eliminating the safety risks of ground-mounted scaffolding, saving material and labor costs associated with erecting ground-mounted scaffolding, and completely solving the problems of high cost and time-consuming ground-mounted scaffolding construction.

The utility model provides a kind of offshore photovoltaic platform automatic unhooking device, belong to photovoltaic installation technical field.The device integrates automatic unhooking, weighing and remote control function, the device adopts the hook made of 30Cr2Ni2Mo high-strength alloy steel material, rated load capacity reaches 5 tons, the automatic suction of the lifting ring on the hoisted article is realized by strong magnet and loosens, and equipped with servo motor drive speed reduction gear transmission device to realize accurate unhooking.The built-in load cell can monitor load in real time, support remote control operation within 100 meters, avoid artificial close high-risk area.The modular design of device is convenient for maintenance, and rechargeable lithium battery supports 5000 times opening and closing cycle or 250 hours standby.The device has anti-splashing characteristics, suitable for harsh marine environment, significantly improves construction safety and efficiency, solves the risk and efficiency bottleneck of traditional manual operation.

The utility model relates to the technical field of computer bases, in particular to a lifting type computer base which comprises a supporting mechanism, the supporting mechanism comprises a supporting column, a bottom block is arranged in the supporting column, a spring is arranged at the top of the bottom block, a limiting plate is arranged in the supporting column, and a lifting mechanism is arranged on the limiting plate. A limiting pipe attached to the limiting plate is arranged in the supporting column. The sliding mechanism comprises a sleeve, a support is arranged on the outer edge face of the sleeve, the support extends into the sleeve and is connected with a connecting column, the connecting column is arranged in the sleeve, the bottom end of the connecting column is connected with a limiting column, the limiting column is arranged in the supporting column in a sliding mode, and a limiting claw facing the connecting column is arranged in the limiting plate. And a U-shaped limiting piece is arranged at the top of the limiting plate. The base has the advantages of being simple in structure, reasonable in design, provided with a protection structure, capable of avoiding the phenomenon that the base pops up, capable of eliminating potential safety hazards and capable of reducing the return rate, and worthy of being widely applied and popularized.

This utility model provides a rope winding mechanism for a bag unpacking machine, comprising: a frame, a transverse guide rail mounted on the frame, and a rope winding mechanism mounted on the transverse guide rail. The rope winding mechanism includes: a rope winding moving frame, which is mounted on the transverse guide rail via a transverse moving module. A longitudinally driven sliding cylinder is mounted on the rope winding moving frame. A movable mounting seat is mounted on the telescopic shaft of the sliding cylinder. A rope winding box is mounted at the bottom of the movable mounting seat. A vertically downward-oriented rope winding motor is mounted inside the rope winding box. A turntable is mounted on the output shaft of the rope winding motor. Two downward-extending and symmetrically arranged rope winding rods are mounted at the bottom of the turntable. This bag unpacking machine's rope winding mechanism is reasonably designed and highly automated, enabling automatic collection, winding, and unloading of ropes cut from bundled materials. This not only improves unpacking efficiency but also eliminates potential safety risks during rope extraction.

The utility model relates to water body sampling device technical field discloses a sampling device for water ecological monitoring, including positioning stand, the top end fixedly connected with connecting plate respectively of positioning stand, utilize connecting plate and unmanned plane connection, the bottom end all around fixedly connected with the supporting leg of outward bending of positioning stand, the top end middle part symmetry fixedly connected with motor and positioning plate of positioning stand, and the motor output end place is connected with winding mechanism, and the other end of winding mechanism is connected with positioning plate, and the bottom of winding mechanism is connected with sampling cylinder. The utility model discloses through unmanned plane transportation, can easily reach the core water area such as lake heart, reservoir heart far from the shore, breaks through the traditional manual sampling in the space limit. Sampling device obtains water sample through the way of silent sinking and remote control trigger closing, effectively avoids the disturbance of bottom mud and water body caused by personnel, ship approach or equipment operation, greatly guarantees the authenticity and representativeness of water sample, solves the problem that sample is easy turbid distortion.

The utility model relates to the technical field of high-altitude operation safety facilities, and particularly discloses a closed arc-shaped wall life rope fixing device which comprises a nut, a gasket, a life rope fixing device body and a life rope, the life rope fixing device body penetrates through a wall during installation, the two ends of the life rope fixing device body extend out of the wall, and the life rope fixing device body is fixed to the nut. One end of the life rope fixing device is sleeved with the nut and the gasket, the nut is in threaded connection with the life rope fixing device, and the other end of the life rope fixing device is a connecting end and is in a square shape; the life rope is connected with the connecting end of the life rope fixing device, and the life rope comprises a galvanized steel wire rope, a matched rope clamp and a safety hook. The problems that in the prior art, a safety belt in a closed arc-shaped wall is not provided with a hanging point, and the personal safety of constructors is difficult to ensure in the process of dismantling inner and outer frames of the closed arc-shaped wall are solved.

This invention discloses an intelligent programmed engineered probiotic system and its preparation method. The system uses probiotic strains as the engineered substrate bacteria, and is constructed by integrating the coding genes for superoxide dismutase (SOD), antimicrobial peptides (AMP), and a synchronized cleavage circuit (SLC) with the probiotic strains through genetic engineering technology. This invention also discloses a pH-responsive genetically engineered bacterial microsphere containing the aforementioned intelligent programmed engineered probiotic system, which is encapsulated in a carrier formed by the cross-linking reaction of sodium alginate and calcium chloride ions. The intelligent programmed engineered probiotic system and the accompanying pH-responsive genetically engineered bacterial microspheres constructed in this invention, through the synergistic design of the dual-function therapeutic modules SOD and AMP, and the programmed cleavage circuit SLC, simultaneously address the three core problems of IBD: oxidative stress, dysbiosis, and intestinal barrier damage.

The application relates to a manufacturing method of a head structure of a carbon fiber composite material-based aerodynamic push rod, which comprises the following steps: dividing the head structure into five parts, i.e. a circular truncated cone-shaped upper shell, an inverted circular truncated cone-shaped lower shell, a supporting pipe, a flange seat and a circular truncated cone-shaped protective sleeve; setting a first thickened area and a second thickened area in the upper shell; setting a third thickened area and a fourth thickened area in the lower shell; adopting carbon fiber prepreg to carry out multi-layer pasting on the upper shell, and then inserting multi-layer carbon fiber prepreg into the multi-layer interval of the first thickened area and the second thickened area for pasting; adopting carbon fiber prepreg to carry out multi-layer pasting on the lower shell, and then inserting multi-layer carbon fiber prepreg into the multi-layer interval of the third thickened area and the fourth thickened area for pasting; adopting carbon fiber prepreg to carry out multi-layer pasting on the supporting pipe, and then carrying out curing and forming through a hot pressing tank process after the pasting is completed. According to the head structure requirements, reasonable optimization design of prepreg layer angle, layer sequence and layer proportion is carried out, the head structure bearing requirements are met, and overall weight reduction is realized.

The utility model belongs to the technical field of distribution box, concretely relates to a kind of overhaul power supply box intelligent control power transmission device, including total power supply control box and several overhaul power supply boxes, and the incoming line end inside total power supply control box is provided with power supply total air switch, and the input end of each overhaul power supply box is respectively connected to the output end of power supply total air switch by branch air switch, and multiple feeder circuits are provided in each overhaul power supply box, and the outgoing line end of each feeder circuit is correspondingly connected with one power socket for inserting temporary power plug during overhaul, and the leakage protection switch with leakage and overload protection function is respectively arranged on each feeder circuit, and the control contactor that can be remotely controlled to attract / close is connected with secondary line control circuit.The device can realize remote power transmission and timing power-off of overhaul power supply box through mobile phone APP, which can effectively reduce the trouble and safety risk caused by frequent connection and disconnection of temporary power line in overhaul work and stop power transmission operation.

The utility model relates to the technical field of photovoltaics and semiconductors, in particular to a tail end cover and atomic layer deposition equipment, and the tail end cover comprises a substrate which is provided with a thermal field mounting hole which is configured to be inserted into or pulled out of a thermal field; the reinforcing structure assembly comprises a strength part which vertically extends in the direction away from the substrate along the edge of the thermal field mounting hole; the flange plate extends outwards from the side face of the end, away from the base plate, of the strength piece. The sealing plate is installed on the flange plate in a sealing mode, and a thermal field wire outlet hole is formed in the sealing plate; and the wire outlet sealing column is installed in the thermal field wire outlet hole in a sealed mode, and the wire outlet sealing column is configured to be electrically connected with the thermal field. By adjusting the connection mode of the thermal field and the tail end cover of the ALD equipment, the thermal field is independently sealed and fixed by using the reinforcing structure assembly and the sealing plate, the disassembly and assembly process of the thermal field is simplified, the maintenance difficulty is reduced, and the safety risk is eliminated.

This invention relates to a low-temperature difference indirect temperature control multifunctional bathing aid device, comprising a bathtub and a bathing chair. On one hand, this invention indirectly adjusts the temperature of the bath liquid in the bathtub based on the temperature control of the water tank, and ensures that the water discharged from the bathtub can circulate and return while maintaining equal supply and return volumes. This not only eliminates safety risks caused by temperature differences in the bath liquid, but also avoids direct temperature control. Constant temperature control is achieved while the bath liquid is flowing, preventing direct waste discharge. Furthermore, based on the massage or acupoint stimulation function created by the water jets, and the equal supply and discharge of water in the water replenishment chamber, interference between inflow and outflow is avoided. The water replenishment chamber serves as the optimal water temperature monitoring area for more accurate temperature control. On the other hand, the built-in locking mechanism eliminates interference or obstacles caused by external components, preserving the overall aesthetic appearance of the bathtub. The locking force, generated by the internal squeezing force from multiple points on the lock head, not only allows for adjustment but also reduces safety risks associated with bathing.

The utility model discloses a kind of online polishing equipment of upper pinch roll of gateway type coiler, including the mounting bracket integrated in the coiler rack, be located on the lifting mechanism of mounting bracket, with the polishing assembly of lifting mechanism connection, the transverse swing mechanism of driving polishing assembly, and be located between the guide pulley guide mechanism of lifting mechanism and mounting bracket.Lifting mechanism drives polishing assembly to lift to approach or away from upper pinch roll, transverse swing mechanism drives polishing assembly to reciprocate along roll shaft direction, guide pulley guide mechanism guarantees lifting stability.Through the cooperation of each mechanism, roller surface can be polished automatically under non-stop state, eliminate the security risk of manual polishing, improve polishing quality and efficiency, solve the problem of strip steel quality caused by not in time due to roller surface defect processing.

The invention discloses an automatic pouring system and an automatic pouring process for propellants. The automatic pouring system comprises an automatic quantitative pouring system (2), a vacuum cylinder (1), a truss manipulator (7), a mold (9), a truss manipulator clamp (16) and a ground rail conveying line (3), the automatic quantitative pouring system (2) comprises a first-stage chemical pouring system and a second-stage chemical pouring system, the first-stage chemical pouring system comprises a first-stage pouring hopper (2-4) and a first servo rubber tube valve (2-12), and the second-stage chemical pouring system comprises a second-stage pouring hopper (2-7) and a second servo rubber tube valve (2-16); the ground rail conveying line (3) is used for conveying the mold (9) and the vacuum cylinder (1), and the truss mechanical arm clamp (16) can be matched with the truss mechanical arm (7) to load the mold (9) into the vacuum cylinder (1) and take the mold (9) away from the vacuum cylinder (1). According to the automatic quantitative pouring device, the safety of the product pouring process is improved, the pouring quality of the product is guaranteed, the production efficiency is improved, and the safety risk is effectively eliminated by adopting the automatic quantitative pouring mode of the first-stage hopper and the second-stage hopper.

This invention discloses a method for the continuous flow synthesis of β-vinylsilane compounds catalyzed by Cu / Ag-ZSM-5 molecular sieve. The method includes: providing a microchannel reactor loaded with a Cu / Ag-ZSM-5 bimetallic molecular sieve heterogeneous catalyst; dissolving an arylaceyne compound and (dimethylbenzyl)borate pinacol ester in a mixed solvent of methanol and water; continuously passing the premixed reaction solution into the microchannel reactor; and carrying out an anti-Markovnikov hydroaddition reaction at 25-30°C, followed by separation and purification to obtain the target β-vinylsilane product. This invention utilizes a copper-silver bimetallic synergistic catalysis to achieve highly selective anti-Markovnikov hydroaddition of terminal arylaceyne compounds, providing a new approach for the functionalization of β-vinylsilane compounds and opening a new pathway for the green synthesis of organosilicon functional molecules. Its industrial application will significantly enhance the market competitiveness of related pharmaceutical and material products, yielding significant economic and social benefits.