64 results about "Dual layer" patented technology

The invention relates to the technical field of composite films, in particular to a food packaging film double-layer composite laminating machine and a laminating method. The method comprises the following steps: acquiring film data and temperature data; a tension fluctuation index is calculated based on tension difference and tension deviation conditions collected by a sensor, and abnormal nodes are screened; analyzing the correlation between the abnormal node and a target node based on the distance between the abnormal node and the unwinding side and the distance between the abnormal node and the winding side and the film compounding speed in combination with a tension fluctuation index so as to screen the abnormal side; adjusting the initial gain coefficient based on the abnormal node and the relevant features of the winding side and the unwinding side to obtain an adjusted gain coefficient; further adjusting the unwinding side based on the temperature to obtain an abnormal gain coefficient; according to different abnormal sides, different weights are carried out to obtain a final gain coefficient, and tension control is realized; and detecting the quality of the produced composite film. The probability of film wrinkling, stretching and the like is reduced, and the quality of finished products is effectively improved.

The invention discloses a video abstract generation method based on double-layer routing sparse attention and space pixel recalibration, and belongs to the field of computer vision. The method comprises the following steps: reading an input video and extracting a frame-level feature vector; constructing a video abstract generation model, and performing channel enhancement on the frame-level feature vector to obtain enhanced features; performing double-layer routing sparse attention and space pixel re-calibration on the enhanced features, and performing fusion to obtain fusion features; and inputting the fusion features into an importance score regression network, outputting frame importance scores, and selecting frames to generate a video abstract. According to the method, double-layer routing sparse attention and space pixel re-calibration are combined, the global dependency relationship and local detail information are effectively fused, and the key segments in the video can be accurately identified while the calculation complexity is reduced. Experimental results based on a SumMe and TVSum reference data set show that the method disclosed by the invention shows a good effect in a video abstract generation task.

The invention discloses a centralized storage and unified management method, system, equipment and medium for a remote video monitoring system of a power generation enterprise, and belongs to the technical field of video monitoring. Identifying a monitoring blind area; replacing equipment according to an evaluation and classification result, and adding a high-definition network camera in a monitoring blind area; constructing a three-layer network architecture comprising an access layer, a convergence layer and a core layer, wherein the core layer adopts redundant connection; optimizing a hard disk video recorder deployment scheme based on the network topological relation; establishing a double-layer storage architecture, and adjusting a data uploading strategy according to a network state and a video recording type; unified access of devices of different manufacturers is realized through protocol conversion; and generating a monitoring interface according to the user role. Scientific classified updating of equipment is realized through a multi-dimensional equipment evaluation model, a transmission path is shortened through network hop count minimization and optimization deployment, bandwidth peak shifting utilization is realized through double-layer storage and intelligent scheduling, and unified and efficient management is realized.

The utility model relates to the technical field of workbenches, in particular to an auxiliary assembling structure for a double-layer workbench, which comprises a workbench, the auxiliary assembling structure for the double-layer workbench comprises a connecting rod and an inserting plate, the inserting plate is connected with a clamping block through an inserting block, the connecting rod is connected with a disc, the disc is connected with a sliding block through a transmission rod, and the sliding block is connected with a sliding block. The sliding block is connected with a clamping block through a rotating plate, and the clamping block is connected with an inserting block through a spring. The workbench has the advantages that the two workbenches are spliced by inserting the inserting plates into the inserting grooves, the clamping blocks can fix the spliced workbenches by buckling the clamping blocks into the clamping grooves, and when the connecting rod is rotated, the disc drives the sliding blocks to slide, so that the springs are compressed, the clamping blocks are separated from the clamping grooves, and separation is completed. The whole device can be quickly spliced and separated, and the connection is tight.

The utility model relates to the technical field of SMT (Surface Mount Technology) processing, and provides a trolley compatible with trays with various sizes, which comprises a supporting assembly, at least one group of single-layer material box assembly and / or at least one group of double-layer material box assembly, the supporting assembly comprises a supporting seat and a plurality of groups of positioning and locking mechanisms arranged on the supporting seat; the supporting base is detachably connected with the single-layer material box assembly or the double-layer material box assembly through any set of positioning and locking mechanism. The single-layer material box assembly comprises a first material disc support. The double-layer material box assembly comprises a second material disc support and a third material disc support, and the second material disc support and the third material disc support are distributed in an up-down staggered mode. Free combination of different material frame assemblies is facilitated, material trays of various sizes can be stored in a compatible mode, material taking convenience is improved, material taking operation of different feeders is facilitated, the overall structure is simple, the manufacturing cost is low, the application range is expanded, and therefore the production and machining technology and the production efficiency are effectively improved.

This invention discloses a long-distance dual-axis self-synchronizing double-layer vibrating tension screen, comprising an excitation device, an upper coarse-pore screen, a fixed screen frame, a floating screen frame, and a lower fine-pore flexible screen. The excitation device includes a rear excitation device mounted on a side plate corresponding to the feed inlet and a front excitation device mounted on the side plate corresponding to the fine slag outlet. The line connecting the central axis of the drive shaft of the front excitation device and the central axis of the drive shaft of the rear excitation device forms a spatial inclined plane, and the angle between the spatial inclined plane and the upper coarse-pore screen ranges from 20° to 45°. The center of mass of the entire screen body is located within the spatial inclined plane, and the distance between the central axis of the drive shaft of the front excitation device and the center of mass of the entire screen body is the same as the distance between the central axis of the drive shaft of the rear excitation device and the center of mass of the entire screen body. This invention can achieve dry screening of moist fine-grained materials with complex particle size distribution, and is particularly suitable for raw coal grading and screening in coal preparation processes.

The invention belongs to the technical field of printed circuit boards, and discloses a board matching machine which comprises a rack and further comprises a double-layer lifting mechanism used for vertically lifting and caching a carrying disc; the roller conveying mechanism is in butt joint with the double-layer lifting mechanism and is used for transversely conveying the carrying disc; the carrying disc stacking mechanisms are arranged on the two sides of the roller conveying mechanism and used for positioning and stacking the carrying discs; the single loading disc backflow conveying mechanism is arranged at the rear end of the roller conveying mechanism and used for backflow of the unloaded disc; the ninety-six-layer carrying disc stacking mechanism is used for caching and extracting multiple layers of carrying discs; the material taking manipulator mechanism is used for taking and placing the materials; through collaborative design and precise control of the double-layer lifting mechanism, the roller conveying mechanism, the single carrying disc backflow conveying mechanism, the ninety-six-layer stacking carrying disc mechanism and the lifting opening and closing conveying mechanism, automatic and continuous circulation of carrying discs and materials between stations is achieved, and the production efficiency is greatly improved.

The utility model discloses a disc type double-sided brick grinding machine, which relates to the technical field of brick grinding machines, is used for solving the problems of low grinding efficiency and large occupied space of the existing double-sided brick grinding machine, and comprises a brick grinding mechanism, a cam disc clamping mechanism, a support table and a feeding mechanical arm, the brick grinding mechanism comprises a base and two brick grinding machine heads arranged on the base in the longitudinal direction, the cam disc clamping mechanism comprises a disc base, a double-layer disc and a driving device, the outer side of the disc base is sleeved with a bearing seat assembly, and a cam is arranged at the top of the disc base; the double-layer disc is provided with a plurality of clamping vacancies and a plurality of arc-shaped grooves, each clamping vacancy is provided with a push plate, and a transmission rod assembly is arranged in an interlayer of the double-layer disc. The double-face brick grinding machine can complete double-face grinding at a time, is small in occupied space and high in grinding efficiency, and well solves the problems that an existing double-face brick grinding machine is low in grinding efficiency and large in occupied space.

The double-layer garbage can comprises a first garbage can body, a second garbage can body and a second sliding rod, the first garbage can body and the second garbage can body are the same in shape and size, a supporting plate is fixedly connected to the side wall of the first garbage can body, the first sliding rod is arranged at the top end of the supporting plate, and a threaded connection groove is formed in the top end of the first sliding rod. A threaded connecting head is arranged at the bottom end of the second sliding rod, the outer side wall of the threaded connecting head is in threaded connection with the inner side wall of the threaded connecting groove, a movable plate is fixedly connected to the side wall of the second garbage can, a sliding hole is formed in the top end of the movable plate in a penetrating mode, and a locking mechanism is arranged on the movable plate. Under the condition that the vertical space is enough, the second garbage can and the first garbage can are vertically assembled, the transverse space is saved, the bottom end of the second garbage can can be used as a sealing cover of the first garbage can, and the structure is simple and practical; the two garbage cans are flexibly assembled and can be freely changed and assembled according to space requirements, and the space utilization rate is increased.

A method includes forming a first layer of a disk, the first layer comprising a first material and forming a second layer of the disk by depositing a second material on the first layer. The method further includes irradiating at least the second layer of the disk to cross-link the second material. The first material has a higher melting point than the second material, and the dual-layer disk is configured to be thermoformed into an oral appliance.

This invention discloses a multi-layer composite sound-absorbing device. The double-layer micro-perforated plate of this invention includes an upper micro-perforated plate and a lower micro-perforated plate, which are connected by a disc spring device. The upper and lower micro-perforated plates are connected around their perimeter by a frame, ensuring the disc spring device between them is compressed. The density gradient porous sound-absorbing material layer is composed of at least two layers of sound-absorbing material with different densities stacked together. This multi-layer composite sound-absorbing device is composed of resonant and resistive sound-absorbing materials, achieving excellent low-frequency broadband sound absorption, effectively solving low-frequency noise pollution problems in substations, converter stations, and other fields. By adjusting the plate spacing to change the compression state of the disc springs, different stiffness characteristics are obtained, thereby enhancing the resonant sound absorption effect for specific frequency bands of noise and specifically improving the sound absorption coefficient of the device for specific frequency bands of noise.

The application discloses an elastic support assembly and an adjustable-inclination disc spring vibrating screen and relates to the technical field of vibrating screening. The elastic support assembly comprises a fixed bottom plate, a disc spring group system, a double-layer triangular plate main frame and connecting bolts; a through hole is arranged in a first layer bottom plate of the double-layer triangular plate main frame; the disc spring group system passes through the through hole of the first layer bottom plate of the double-layer triangular plate main frame and is arranged on the fixed bottom plate; the connecting bolts pass through the fixed bottom plate, the first layer bottom plate and a second layer bottom plate of the double-layer triangular plate main frame in sequence and are used for fixedly connecting the fixed bottom plate and the double-layer triangular plate main frame. The adjustable-inclination disc spring vibrating screen is realized by adopting a support assembly, an adjustable-inclination screen mesh, a driving device and a screen mesh inclination external adjusting device. The application is suitable for vibrating screening in mineral processing.

The utility model discloses a double-layer easy-to-tear packaging bag which comprises a packaging bag body, the packaging bag body is formed by compositing an inner layer film and an outer layer film, a half-frame-shaped first arc line is cut out of the outer layer film outside the packaging bag, a half-frame-shaped second arc line located in the first arc line is cut out of the inner layer film inside the packaging bag, and the second arc line is located in the first arc line. A bonding area is formed between the first arc line and the second arc line, the bonding area is coated with repeatable bonding glue before the inner-layer film and the outer-layer film are compounded, and permanent glue is adopted for other compounding parts of the inner-layer film and the outer-layer film except for the bonding area; a label is formed by tearing along the first arc line, and an opening in the direction of a second arc line is formed in the packaging bag body. According to the packaging bag, the inner-layer film and the outer-layer film are compounded, and the first arc line and the second arc line are cut open, so that the label and the opening which are integrated with the packaging bag can be formed, waste of materials is avoided, meanwhile, the label does not need to be additionally mounted, and the cost is reduced.

The utility model discloses a greenhouse big -arch shelter with double -layer heat preservation film structure, including ground beam, the ground beam's top one side installs the support side plate, the top of ground beam and the one side outer wall of support side plate install between first installation framework and second installation framework, the top of first installation framework is paved with first heat preservation film, the top of second installation framework is provided with the heat preservation film take -up assembly for the take -up of second heat preservation film, heat preservation film take -up assembly sets up on the arc pneumatic slide platform for moving in a certain direction for driving heat preservation film take -up assembly. The utility model can according to actual demand and weather change, the covering state of second heat preservation film is flexibly controlled, when needing to enhance the heat preservation effect, can quickly lay second heat preservation film on the top of second installation framework, when weather is getting warmer or carries out the inside operation of big -arch shelter, can also conveniently wind it, and simple and efficient operation saves manpower and time cost.

The utility model relates to periscopic four-station AA equipment. The periscopic four-station AA equipment comprises a base; the four AA modules arranged in parallel have AA stations, so that the PCB and the lens perform AA operation; the first feeding and discharging module used for feeding PCBs is provided with a stripping module used for tearing films of the PCBs. The double-layer assembly line module is used for transferring the film-torn PCBs or AA finished products of the first feeding and discharging module; the first transfer module is used for transferring the PCB with the film torn from the double-layer assembly line module to an AA station and transferring the finished product with AA completed to the double-layer assembly line module; the second loading and unloading module is used for loading the lens; the second transfer module is used for transferring the lens of the second loading and unloading module to an AA station; and the material taking module is used for transferring the finished products AA by the double-layer assembly line module. Stripping and film tearing of the PCB are achieved through the stripping module, a stripping machine does not need to be additionally arranged, full-automatic feeding and discharging are achieved through the arrangement of the double-layer assembly line module and the combination of the four AA modules arranged side by side, internal carrier plate backflow is uninterrupted feeding, and the production efficiency is improved.

This invention belongs to the field of integral bladed disk size detection technology, and provides a three-coordinate measuring machine (TCM) method for detecting the dimensions of a double-layer integral bladed disk. The method includes the following steps: Step 1, designing the TCM probe structure based on the disk structure; Step 2, configuring the calibration ball orientation for the probe structure; Step 3, calibrating all probes and placing them in the probe replacement rack; Step 4, establishing the disk coordinate system; Step 5, automatically running the program and calling the corresponding probes to scan the disk profile; Step 6, using the scanned data for dimensional evaluation. This invention efficiently completes the detection of the double-layer integral bladed disk profile, avoids missing disk dimensions, achieves quality control, improves measurement efficiency and accuracy, and increases detection efficiency by 50%.

The invention discloses a double-layer alternate feeding device, and relates to the technical field of automatic feeding equipment.The double-layer alternate feeding device comprises a rack, a first feeding assembly and a second feeding assembly, and a feeding channel is formed in the first direction; a feeding area, a first feeding area and a second feeding area are sequentially arranged in the extending direction of the feeding channel, the first feeding assembly can supply materials in the first feeding area, and the second feeding assembly can supply materials in the second feeding area. A first material disc and a second material disc of the first feeding assembly and a third material disc and a fourth material disc of the second feeding assembly are arranged in a stacked mode in the second direction, so that the material discs do not interfere with one another in movement. The first feeding area and the second feeding area can achieve feeding at the same time, feeding of different types of heat dissipation mud can be met, the production efficiency is improved, and the adaptability of the equipment is further improved.

The invention discloses an automatic pushing device and method for a heat-shrinkable sleeve of an optical fiber fusion splicer, and belongs to the technical field of optical fiber fusion splicers. The device comprises an optical fiber fusion splicer, a double-layer disc inner disc and a double-layer disc outer disc, and the double-layer disc inner disc and the double-layer disc outer disc are arranged at the two ends of the optical fiber fusion splicer; the sliding device and the heating furnace are arranged at the top of the optical fiber fusion splicer; and the rotating inner shaft is arranged in the centers of the double-layer disc inner disc and the double-layer disc outer disc. The method comprises the step that the double-layer disc inner disc, the double-layer disc outer disc and the sliding device are used for pushing the heat-shrinkable sleeve to the heating furnace to complete hot joining. The method for automatically pushing the heat-shrinkable sleeve can overcome the defects that an existing heat-shrinkable sleeve pushing device is insufficient in manual pushing and positioning precision, and a fusion point of an optical fiber is prone to deviating from the center of the heat-shrinkable sleeve.

The invention is applicable to the field of dissolving and dispersing equipment, and provides a double-layer high-speed shearing and dispersing disc and a polypropylene manufacturing method, and the double-layer high-speed shearing and dispersing disc comprises a driving shaft which is connected with a driver; the main dispersion disc is connected with the driving shaft; at least one auxiliary dispersion disc and a clutch member; the clutch piece can enable the auxiliary dispersion disc to be connected or disconnected relative to the driving shaft; when the driving shaft is at the first rotating speed, the auxiliary dispersion disc and the driving shaft are disconnected and rotate relatively; when the driving shaft is at the second rotating speed, the auxiliary dispersion disc is connected with the driving shaft, and the driving shaft drives the auxiliary dispersion disc to rotate; the second rotating speed is greater than the first rotating speed, so that the working state of the auxiliary dispersion disc can be switched by utilizing the change of the speed after secondary raw materials are added, and when the auxiliary dispersion disc is at a low speed on the driving shaft, the auxiliary dispersion disc enters an'inert 'state and inhibits centrifugal force generated by circumferential eddy current; the slurry is reduced to drive the to-be-dissolved raw materials to the side wall of the stirring tank.

The utility model relates to a film supporting mechanism of a full-automatic bagging machine, the film supporting mechanism comprises a film supporting frame and a film supporting assembly, the film supporting assembly comprises two film supporting blocks, the two film supporting blocks are arranged on the two opposite sides of the film supporting frame respectively, and when the film supporting mechanism supports a double-layer coating film, the two film supporting blocks are both arranged in the double-layer coating film in a penetrating mode; and then the two film supporting blocks abut against the two sides of the interior of the double-layer wrapping film correspondingly, so that the two sides of the interior of the double-layer wrapping film are supported, a gap of the double-layer wrapping film is opened, and cards, sheet-shaped products, book-shaped products or box-shaped products are more easily pushed to the position between the double-layer wrapping film. The double-layer packaging film has the effect that cards, sheet-shaped products, book-shaped products or box-shaped products can be more easily pushed between the double layers of packaging films.