67results about How to "Reduce operational difficulties" patented technology

The invention discloses a new mineral separation method suitable for separation of hard-separation micro-fine particle magnetic iron ores. The new mineral separation method adopts a process comprising the steps of carrying out two-stage grinding on raw ores, carrying out low-intensity magnetic separation, obtaining ore concentrate through reverse flotation and single-stage roughing, regrinding middlings, carrying out the low-intensity magnetic separation and carrying out the reverse flotation; two-stage low-intensity magnetic separation ore concentrate is obtained through the process by adopting a method comprising the steps of stage grinding and stage low-intensity magnetic separation tailings discarding; qualified iron ore concentrate can be obtained in advance by carrying out a cationic collector reverse flotation technology on the two-stage low-intensity magnetic separation ore concentrate under the situation that the granularity is roughened; a regrinding and low-intensity magnetic separation technology is carried out on reverse flotation middlings, the cationic collector reverse flotation technology is carried out on three-stage low-intensity magnetic separation ore concentrate, and thus the iron concentrate grade is increased. According to the new mineral separation method disclosed by the invention, ore concentrate is obtained in advance as the reverse flotation is carried out by independently adopting a cationic collector under the situation that a depressor DF is not added, adding points of medicament are reduced, the manual operation difficulty is reduced, and the cost of mineral separation medicament is reduced; since the ore concentrate is obtained in advance through the reverse flotation, three-stage ball milling material amount is reduced, the ore grinding cost is greatly reduced, and the effect of extracting iron and reducing the energy can be achieved.

A multidirectional flexible bending and locking surgical device comprises a hollow rigid rod body having a control portion and a wrist structure at both ends of the rod body, the control portion having a first ball socket joint and a driving device, the wrist structure having a second ball socket joint, the second ball socket joint being connected with a front end actuator, and a drive cable beingconnected between the first ball head and the second ball socket; the first ball and socket joint includes a first ball head and a first socket, and the second ball and socket joint has a second ballhead and a second socket. The first ball socket joint and the second ball socket joint connected to each other through the drive cable synchronize the operation of the operator in the control sectionand the execution of the wrist structure. The invention has the advantages of reasonable structure design, convenient use, good portability and economy.

The invention belongs to the technical field of polylactic acid production, and particularly relates to a production method for preparing polylactic acid by a ring-opening polymerization method, a prepolymer mixture and polylactic acid, wherein the production method comprises the following steps: (1) contacting an initiator, a catalyst and a monomer I in a production device to carry out a ring-opening polymerization reaction to generate a prepolymer mixture containing a polylactic acid prepolymer; (2) enabling the prepolymer mixture to be in contact with a monomer II for reaction to generate high-molecular-weight polylactic acid, wherein the monomer I and the monomer II are the same or different and respectively and independently comprise lactide. According to the production method, the feeding quality fluctuation of the initiator and the catalyst can be reduced, and the production stability in the production process is improved.

The invention discloses an LED display screen and a mounting structure capable of adjusting the connecting angle of boxes of the LED display screen, and belongs to the field of LED display screens. In the display screen, the two adjacent boxes of the LED display screen are connected by the mounting structure. The mounting structure comprises an adjusting assembly and a middle lock assembly, wherein the adjusting assembly comprises an adjusting wheel and a knob; the knob drives the adjusting wheel to rotate; the adjusting wheel is provided with a plurality of adjusting surfaces; angles of inclination of the adjusting surfaces are different; when the two adjacent boxes of the LED display screen are connected, the adjusting surfaces are in contact connection with side surfaces of the other box of the LED display screen; and the middle lock assembly comprises a middle lock handle and a limiting pin connected with the middle lock handle. By the mounting structure, zero-angle connection of the LED display screen can be realized; and moreover, the mounting structure can adapt to inner arc mounting and outer arc mounting; the boxes are connected quickly in field; the mounting structure is easy to operate; and any tools are not required.

The invention relates to a method for drawing color lines on a plate-type ceramic product to form a concave-convex embossment pattern. The method comprises the steps of green body finishing, water washing, biscuit firing, internal glazing, external glazing, natural drying, kiln firing. According to the method, a glazing manner and a needle line drawing manner are combined to form the concave-convex embossment pattern, namely, a transmutation glaze is adopted as a bottom glaze, a bright coloured glaze and a strong fusing agent form a hand drawing material, an ear washing bulb and a needle are utilized to draw lines and circles, after firing, the concave-convex embossment pattern appears, a diffusion feeling is achieved, an obtained glaze surface is natural, and the surface pattern and a glaze layer are more harmonious and richer; the transmutation glaze is adopted as the bottom glaze, the ear washing bulb and the needle are utilized to draw the line pattern to form the textile, the operation is simple, the product cost is low, the operation is meticulous, and the product quality reaches around 90%; and the technology has the advantages that the operation difficulty is extremely low, after firing, the product has no detect, and the integral brightness of the product is greatly improved on the contrary.

The invention provides a stamping die which comprises a lower die assembly, an upper die assembly used for being matched with the lower die assembly to stamp materials, a guiding assembly arranged onone side of the upper die assembly and used for transferring materials, a cutting assembly movably arranged in the upper die assembly and extending out of the other side of the upper die assembly, a driving assembly fixedly connected to the upper die assembly and used for driving the cutting assembly to cut the materials, and a control assembly electrically connected to the driving assembly. The driving assembly movably abuts against the cutting assembly. The cutting assembly is movably arranged on the upper die assembly, the control assembly controls the driving assembly to drive the cuttingassembly to cut, thus the cutting assembly cuts under control of the control assembly, accordingly the materials carried with a plurality of stamping products can be cut after stamping for multiple times, then the multiple products are further machined simultaneously, and thus the production efficiency is improved; and the multiple products are connected into a whole, thus the size of the productsis enlarged compared with the size of one single product, and the operating difficulty of workers is lowered.

The invention provides an improved structure of a positioning device. The structure comprises a guide seat, a sliding seat and a wrenching assembly, a guide channel is formed in the top surface of theguide seat in an inward sectioning manner, the side plates are bent at the two sides of a base of the sliding seat in a same direction, and the positioning parts are arranged on the two side plates.The wrenching assembly is provided with a wrenching body pivoted on the sliding seat, a guide piece is arranged on the wrenching body, and a fixing piece is arranged at one side, opposite to the guidepiece, of the wrenching body. When the wrenching body of the wrenching assembly is in an opening state, the fixing piece is not positioned on the positioning part, and when the wrenching body of thewrenching assembly is used for locking, the guide piece is positioned in the guide channel of the guide seat and slides, and the sliding seat is driven to slide towards the other direction opposite tothe siding direction of the guide piece. When the wrenching body of the wrenching assembly is in a locked state, the fixing piece of the wrenching assembly is positioned on the positioning part of the sliding seat, so that the overall operation difficulty can be reduced without needing the tedious assembly actions, such as screw locking, etc., and the effect of increasing the overall assembly speed is achieved.

The invention provides a multi-directional flexible bending and locking surgical device, which has a hollow hard rod body, and has a control part and a wrist structure at both ends of the rod body, the control part has a first ball joint and a driving device, and the wrist The structure has a second ball-and-socket joint, the second ball-and-socket joint is connected to the front-end actuator, and a transmission cable is connected between the first ball head and the second ball-socket joint; the first ball-socket joint includes a first ball head and a first ball Seat, the second ball joint has a second ball head and a second ball seat; the first ball joint and the second ball joint are connected to each other through a transmission cable to synchronize the operation of the operator on the control part and the execution of the wrist structure action. The invention has reasonable structural design, is convenient to use, and has good portability and economy.

The invention provides a novel carbon fiber fabric setting device and process. According to the novel carbon fiber fabric setting process, one or more thin resin layers are added to one or both of the upper surface and the lower surface of each carbon fiber fabric; through the adhesive force obtained after melting of resin, fibers of the carbon fiber fabric can be mutually bonded, thereby setting the carbon fiber fabric; and through the thin resin layers or with the help of hot wind, automatic bonding among a plurality of carbon fiber fabrics in a laying-pasting process can be achieved. By adoption of the novel carbon fiber fabric setting device and process, the performance and the efficiency of fabric laying-pasting on a mold can be improved; and meanwhile, the thin resin layers are added through external operation, and direct fiber treatment or usage of set fibers are avoided, thereby guaranteeing the production simplification, reducing the production cost, and facilitating mass production.

The invention discloses an emergency nursing hemostasis auxiliary device, and relates to the technical field of medical appliances, the emergency nursing hemostasis auxiliary device comprises a binding table, a positioning assembly and a hemostasis assembly.A wrapping sticker is pasted on the skin of a patient, blood is absorbed through hemostatic cotton, and the blood is prevented from permeating outwards through an anti-permeation layer; then, an arc-shaped pressing plate is pressed downwards to extrude gas and hemostatic drugs in a closed drug storage cavity formed between the arc-shaped pressing plate and an isolation layer, the gas pushes a film to extend downwards and protrude to be in contact with microneedles for puncturing, and at the moment, the gas drives the hemostatic drugs to flow into a circulation cavity through a hole; a medical worker or a patient can manually press the arc-shaped pressing plate for multiple times to blow air to the circulation cavity through the cavity, the hemostatic medicine is blown to the wound of the patient for multiple times, and the hemostatic effect is achieved. And soft air is blown to the wound of the patient, so that the stuffiness and discomfort of the wound can be relieved.

The invention provides an improved structure of a positioning device. The structure comprises a guide seat, a sliding seat and a wrenching assembly, a guide channel is formed in the top surface of theguide seat in an inward sectioning manner, the side plates are bent at the two sides of a base of the sliding seat in a same direction, and the positioning parts are arranged on the two side plates.The wrenching assembly is provided with a wrenching body pivoted on the sliding seat, a guide piece is arranged on the wrenching body, and a fixing piece is arranged at one side, opposite to the guidepiece, of the wrenching body. When the wrenching body of the wrenching assembly is in an opening state, the fixing piece is not positioned on the positioning part, and when the wrenching body of thewrenching assembly is used for locking, the guide piece is positioned in the guide channel of the guide seat and slides, and the sliding seat is driven to slide towards the other direction opposite tothe siding direction of the guide piece. When the wrenching body of the wrenching assembly is in a locked state, the fixing piece of the wrenching assembly is positioned on the positioning part of the sliding seat, so that the overall operation difficulty can be reduced without needing the tedious assembly actions, such as screw locking, etc., and the effect of increasing the overall assembly speed is achieved.

The invention relates to the technical field of machine control, in particular to a robot operation control method and system and a robot. The method comprises the following steps: acquiring spatial data of a breeding work ship; performing multi-source sensor network deployment according to the spatial data of the cultivation work ship to generate a multi-source sensor network; performing sensor data integration on the multi-source sensor network to generate cultivation work ship environment sensing integrated data; performing real-time environment updating on the cultivation work ship environment sensing integrated data to generate cultivation work ship real-time environment monitoring data; performing spatio-temporal data synchronization on the real-time environment monitoring data of the breeding work ship to generate environment synchronization data of the breeding work ship; and according to the cultivation work ship environment synchronization data, environment model construction is carried out to generate a comprehensive cultivation environment model. Through real-time environment sensing, dynamic path planning, intelligent feeding control and anomaly detection, the stability and the intelligent level of robot operation control are improved.

The invention brings forward a treating method for industrial waste water by using ultraviolet light for catalytic oxidation. The method comprises the following steps: adding a catalyst into industrial waste water; generating ultraviolet light; irradiating industrial waste water containing the catalyst with the generated ultraviolet light and carrying out a catalytic oxidation reaction. Compared to conventional treating methods for industrial waste water, the treating method provided in the invention at least has the advantages of reduction in secondary pollution and energy consumption, simple operation, etc.

The invention relates to a tooth extraction auxiliary device, in particular to a tooth extraction auxiliary device for the department of stomatology. The technical problem is to provide the tooth extraction auxiliary device for the stomatology department, which can suck saliva and is convenient for medical personnel to extract teeth. According to the technical scheme, the tooth extraction auxiliary device for the stomatology department comprises a hand pull rod, a screw rod, a rotating handle, a first support, a threaded seat, a second support, a hollow frame, a telescopic rod, a first swing rod, a fixing rod, a rotating seat, a material supporting block, a suction mechanism and a lighting mechanism, the upper portion of the hand pull rod is rotationally connected with the screw rod, and the rotating handle is arranged on one side of the screw rod. According to the tooth extraction device, the tongue of a patient is pressed by a second swing rod, so that the phenomenon that the tongue of the patient licks an affected part and hinders work of a doctor when the doctor extracts teeth of the patient can be prevented, and the tongue of the patient can be prevented from being pressed too tightly by arranging a torsion spring, so that the tongue of the patient can slightly move, and the discomfort of the patient is reduced.

The invention relates to a patient limb restricting device for neurosurgery. The patient limb restricting device comprises a base, wherein universal wheels are uniformly and fixedly connected to the periphery of the bottom surface of the base, a lifting device is arranged on the left side and the right side of the central position of the upper surface of the base, a support seat is fixedly connected to the top end of the lifting device, a main transmission device for driving the lifting device to move up and down is arranged at the central position of the rear end of the inner wall of the base, and an auxiliary transmission device for driving the main transmission device is arranged at the central position of the rear end of the upper surface of the support seat. The lifting device linkedwith a bed board is arranged, so that the condition that the patient is horizontally placed in the bed forcibly is avoided, the working difficulty of personnel can be reduced, and the physical strength of the medical personnel is saved; and an arm restricting device and a leg restricting device are arranged, so that restricting limbs of the patient can be realized. The patient limb restricting device is simple to operate and convenient to use, and the functions and the practicality are improved; and a restricting removing device is arranged, so that the purpose that restricting the limbs of the patient is completely removed once can be realized.

The invention discloses a harvesting system. The harvesting system comprises a track mechanism, a moving mechanism, a retractable mechanism and a harvesting device. The track mechanism comprises multiple longitudinal tracks and at least one group of transverse tracks, and each group of transverse tracks comprise two transverse tracks perpendicularly intersecting with the corresponding longitudinaltracks; the moving mechanism comprises a moving platform and multiple wheel groups; the retractable mechanism is disposed on the moving platform to jack the moving platform, so that the wheel groupsare detached from the tracks and correspondingly rotated to move on every two adjacent longitudinal tracks or move on one group of longitudinal track; the harvesting device is disposed on the moving platform and used for harvesting field crops. The harvesting system has the advantages that there is no overlap during harvesting, missing is reduced, the harvesting range at a time is large, the harvesting efficiency is improved, and the problem that conventional harvesting machines directly run on farmland inconveniently under driving of tires is effectively avoided.

The invention belongs to the technical field of packaging machines, and provides a secondary discharging device of a packaging machine. The secondary discharging device comprises a primary dischargingdevice, a secondary mixing device is arranged below the primary discharging device, and the secondary mixing device is connected with a former; materials enter the secondary mixing device through theprimary discharging device and directly enter the former after being mixed in the secondary mixing device, so that the packaging speed is increased, and the working efficiency is improved; more preferably, in the primary discharging device, the materials firstly enter a feeding device, and due to the arrangement of a material blocking device, the materials cannot continue to flow downwards; a driving device drives the feeding device to move, so that the material blocking device is separated from the feeding device, the materials flow out of the feeding device, flow into a metering hopper through the feeding device and then flow into the secondary mixing device through the metering hopper; and the primary discharging device effectively reduces the initial speed of the materials and reducesthe rebound of the materials, so that the phenomenon of material clamping is avoided.

The invention provides a structural steel trestle platform and Bailey trestle platform connecting structure which comprises a steel pipe pile at the joint of a structural steel trestle platform and a Bailey trestle platform, a cross beam on the side of the Bailey trestle platform is fixed to a pile cap of the steel pipe pile, and vertical channel steel limits Bailey pieces; lower steel channels are welded to the cross beams, the lower portions of the section steel trestle platform side longitudinal beret pieces are welded to the lower steel channels, and the section steel trestle platform side longitudinal beret pieces and the section steel trestle platform side longitudinal beret pieces are fixed through screws at the same time. The upper channel steel is welded and fixed with the longitudinal Bailey pieces on the Bailey trestle platform side and is fixed with the longitudinal Bailey pieces on the section steel trestle platform side through bolts, and a plurality of transverse Bailey pieces are arranged between the upper channel steel and the section steel on the section steel trestle platform side. The operation difficulty caused by short-distance driving of multiple rows of steel pipe piles can be reduced, a large number of steel pipe pile materials can be saved, and rapid construction can be achieved through the standard Bailey pieces and the channel steel.

The utility model discloses a safe street lamp control box convenient to maintain, which comprises a box body, a box door is hinged on the front surface of the box body, a bearing plate is slidably connected in the box body through a linear slide rail, a vertical plate for mounting electrical equipment is fixedly arranged on the upper end surface of the bearing plate, and a plurality of screw fixing holes are formed in the vertical plate. The utility model relates to a wiring harness storage box which comprises a box body, a vertical plate is arranged on the box body, a plurality of screw fixing holes are formed in the vertical plate, electrical equipment is fixed on the vertical plate through screws, and a plurality of movable buckle assemblies used for storing wiring harnesses are arranged at positions, corresponding to the screw fixing holes, on the vertical plate, Compared with the prior art, the wiring harness storage box has the advantages that the vertical plate for installing the electrical equipment can be conveniently pulled out of the box body by adopting the bearing plate in sliding connection; the arrangement of the movable buckle assembly can effectively accommodate the wire harness, so that the wire harness is tidy and ordered, the line identification and maintenance operation is simplified, and the operation difficulty of maintenance personnel is reduced.

The invention provides an airway foreign matter taking-out device and equipment, and belongs to the technical field of foreign matter taking-out equipment. The device comprises a conveying catheter and an object taking part, the object taking part is arranged on the conveying catheter, and the object taking part is located at the end, stretching into the trachea, of the conveying catheter; an object taking net is arranged in the object taking part, the object taking net can expand to open a mesh net to take foreign matters, and meshes can be contracted to lock the foreign matters. Through the arrangement of the conveying catheter and the fetching net in the fetching part, the foreign matter in the trachea can be conveniently and effectively captured, and through the special design of the fetching net and the cooperation of the endoscope, the annular sliding block, the auxiliary block, the silk thread and other components, the purpose of fine adjustment of the position of the conveying catheter in the auxiliary components such as the artificial airway component is achieved.

The invention discloses a novel mouth gag applied to a mouse. The novel mouth gag comprises fixed supporting shelves, a gear adjusting mechanism and forceps, the forceps are of a forcipated structurecomposed of two arch-shaped supports, the two arch-shaped supports are the first arch-shaped support and the second arch-shaped support respectively, and the middles of the first arch-shaped support and the second arch-shaped support are crossed through a locating part; the fixed supporting shelves are arranged at the two ends of the outer side of the head of the forceps, the gear adjusting mechanism is arranged in the middle of a holding handle of the forceps, and the inner sides of the first arch-shaped support and the second arch-shaped support are connected through the gear adjusting mechanism. The novel mouth gag is simple in structure, low in weight, small in size and low in cost and has a great application prospect; the requirements of various operations on the oral cavity of the mouse for different mouth opening degrees can be met; the oral cavity of the mouse can be fully exposed, the to-be-operated part is clear, the operation is convenient, the operation time is shortened, the efficiency is improved, and the operability and stability are very high.

The invention discloses a manufacturing method of blood-dredging gloves. The manufacturing method comprises the following steps: uniformly mixing dimethyl silicone oil, deionized water and Tween 80 according to a certain proportion, carrying out water bath, uniformly spraying a liquid mixed spray on conventional gloves through a small sprinkling can, and standing for two minutes, thus obtaining the blood-dredging gloves. The blood-dredging gloves have the advantages that the blood-dredging effect is good, the operation difficulty caused by the fact that blood of a patient is solidified on thegloves during the operation process can be prevented, the operation quality is improved, the operation difficulty of an operation doctor and the mechanical injury to the patient are avoided, the operation time is reduced, the prognosis of the patient is improved to a certain extent, the safety and non-toxicity effects are achieved, the manufacturing is simple, the use is convenient, the economic and practical effects are achieved, the cost is low, and the economic burden of families and society of the patient is alleviated. The novel blood-dredging gloves manufactured by the manufacturing method can be widely applied to most operation scenes, especially operations in the departments of cardiothoracic surgery, neurosurgery, gastrointestinal surgery and the like.

The invention relates to a method for drawing color lines on a plate-type ceramic product to form a concave-convex embossment pattern. The method comprises the steps of green body finishing, water washing, biscuit firing, internal glazing, external glazing, natural drying, kiln firing. According to the method, a glazing manner and a needle line drawing manner are combined to form the concave-convex embossment pattern, namely, a transmutation glaze is adopted as a bottom glaze, a bright coloured glaze and a strong fusing agent form a hand drawing material, an ear washing bulb and a needle are utilized to draw lines and circles, after firing, the concave-convex embossment pattern appears, a diffusion feeling is achieved, an obtained glaze surface is natural, and the surface pattern and a glaze layer are more harmonious and richer; the transmutation glaze is adopted as the bottom glaze, the ear washing bulb and the needle are utilized to draw the line pattern to form the textile, the operation is simple, the product cost is low, the operation is meticulous, and the product quality reaches around 90%; and the technology has the advantages that the operation difficulty is extremely low, after firing, the product has no detect, and the integral brightness of the product is greatly improved on the contrary.

The invention provides a low-polarization-mode dispersion fiber manufacturing method and device in the field of fiber manufacture. The low-polarization-mode dispersion fiber manufacturing device comprises a fiber testing device, a PMD twisting control device and a closed-loop control module connected with the fiber testing device and the PMD twisting control device respectively, wherein the fiber testing device and the PMD twisting control device are arranged under a fiber drawing furnace, the closed-loop control module obtains an actually-tested fiber spin value from the fiber testing device, performs analysis processing and then outputs a corresponding twisting speed instrument to the PMD twisting control device so as to achieve automatic twisting adjustment. The spin value and twist relation is utilized to reduce spin so as to decrease twist and reduce the difficulty brought by follow-up fiber cabling process, one online testing index parameter of a fiber and the PMD twisting control device of the fiber are utilized to form automatic closed-loop control, and the fiber index out of control and scrap problems are effectively solved.

The invention discloses a modularized assembly type steel structure connecting piece. The modularized assembly type steel structure connecting piece comprises a cube block and connecting columns, each plane of the cube block is provided with a connecting part, one ends of the connecting columns are provided with inserting groove allowing steel to be inserted, the other ends, away from the inserting grooves, of the connecting columns are provided with mounting parts, the connecting columns are detachably connected to the connecting parts of the cube block through the mounting parts, a plurality of mounting holes are formed in the surfaces of the connecting columns, and the mounting holes communicate with the inserting grooves. With the adoption of arrangement, the modular connection function can be realized, so that the beneficial effect of simple operation is achieved.

The present invention relates to the technical field of coal loading equipment, and specifically discloses an intelligent coal loading device, including two mobile chassis, a fixed frame and a mounting frame symmetrically arranged front and back. The coal in a clumping state is dispersed by a loading assembly to ensure the fluidity of the coal during the loading process, thereby effectively improving the loading efficiency of the coal. After the coal is dispersed by the loading assembly inside the loading rack, it is diverted inside the movable rack, and then weighed and metered by the metering rack. The movable rack performs reciprocating linear motion inside the bucket of the transport vehicle, so the coal can be evenly loaded into the bucket. Compared with the current method of centralized loading of coal by a loading hopper, the loading method proposed in this scheme can effectively avoid the accumulation of coal inside the bucket. The height of the coal at each position in the bucket after loading is uniform, which effectively reduces the difficulty of subsequent coal leveling operations.

The invention relates to a method for synchronously and rapidly detecting multiple parameters of respirable dust and silicon dioxide on a membrane, and belongs to the field of dust monitoring. The method comprises the following steps: S1, carrying out on-membrane sampling and Fourier infrared spectrum scanning on the quartz respirable dust, taking the quartz respirable dust as a spectrum library of a standard sample, and establishing a standard silicon dioxide and quartz respirable dust quality prediction model based on a spectrum absorption peak of silicon dioxide at 800cm <-1 >; s2, selecting different types of dust, carrying out on-film sampling and spectrum comparative analysis, and establishing spectrum databases and dynamic correction models of different types of dust; and S3, aiming at concentration calculation deviation caused by sampling flow fluctuation, establishing a flow compensation and concentration calculation model, and finally realizing synchronous detection of multiple parameters such as respirable dust mass concentration, silicon dioxide mass concentration and silicon dioxide mass percent.