803results about How to "Avoid Caton" patented technology

The invention discloses a separated modular anchor implantation system with a line, and relates to the technical field of medical apparatuses and instruments. The separated modular suture anchor implanting system comprises an inserter and a storage box, the inserter comprises an insertion rod, and an insertion part is arranged at the head of the insertion rod. An anchor and a suture line are stored in the storage box, an inlet and an outlet are formed in the two ends of the storage box respectively, and the insertion rod can be inserted into the storage box through the inlet, so that the insertion part is connected with the anchor in an inserted mode, the anchor is pushed out of the outlet, and the assembly of the inserter and the anchor is completed; after the anchor nail is implanted by the inserter, the insertion part and the anchor nail can be disconnected and the suture line can be directly withdrawn by moving the inserter in the direction opposite to the implanting direction without being removed by a doctor, so that independent storage of the anchor nail and the suture line is realized, and meanwhile, free assembly of the anchor nail and the inserter is realized; due to the modular structural design, the anchor can be selected and matched according to actual operation requirements, the inserter can be repeatedly used, waste of medical resources is reduced, and environmental protection is facilitated.

The invention discloses a walking path planning method suitable for a cabin unmanned excavator, and the method comprises the steps: employing an inertial navigation module to combine with a laser radar to scan cabin environment information, dividing the cabin environment information into a plurality of grid units, constructing a cabin environment space coordinate system, and forming a three-dimensional environment map; the grid units in the space coordinate system serve as basic units, the obstacle position points are assigned, and planning area path data are obtained; taking an original point as an initial node of the planning area path data, and obtaining path data from the initial node to a target node; smoothing path information of the path data by adopting a path planning algorithm, and planning a path with the minimum elevation change as a walking path; self-adaptive dynamic adjustment is conducted on the walking path of the unmanned excavator, an evaluation function is established, the optimal path track is obtained, the walking dynamic state of the unmanned excavator can be mastered in real time, it is ensured that the unmanned excavator is always kept stable in the walking process, and overturning and jamming are avoided.

The invention relates to the technical field of electronic digital data processing, in particular to a memory bank initialization failure processing method which comprises the following steps: judging whether a memory bank fails to be read or not, if an error memory signal is detected, indicating that the memory bank fails to be read, and marking the memory bank as a memory bank to be detected; running state data, including memory bank performance data and aging condition data, of the to-be-tested memory bank is collected, and a memory bank performance evaluation index and a memory bank aging degree evaluation index are obtained through comprehensive analysis; and comprehensively analyzing to obtain a memory bank exception evaluation index, judging whether the memory bank has a fault according to the memory bank exception evaluation index, and processing the memory bank according to a judgment result. According to the method for processing the initialization failure of the memory bank, provided by the invention, data loss can be prevented, data security can be guaranteed, and system stability and performance optimization can be improved, so that dissatisfaction and troubles caused by system problems of users can be reduced, and the satisfaction degree of the users can be improved.

The invention provides an image classification method and device based on a student model, equipment and a medium, and relates to the technical field of knowledge distillation, and the method comprises the steps: obtaining a to-be-classified image; inputting the to-be-classified image into a target student model to obtain a category corresponding to the to-be-classified image; inputting the initial image set into a trained teacher model and a preset initial student model, and obtaining a teacher model imbalance category probability and a student model imbalance category probability; inputting the mixed image set into a trained teacher model and a preset initial student model, and obtaining a teacher model imbalance category probability and a student model imbalance category probability; determining a corresponding loss; according to the loss, performing back propagation to update student model parameters so as to obtain a target student model; when the image is classified, the resource computing power required by computer hardware can be reduced, the response speed of a computer is improved, and the phenomenon of computer jamming is avoided.

The invention relates to the technical field of welding devices, and discloses an automobile part automatic welding device which comprises a main plate, the top of the main plate is fixedly connected with a first fixing plate, the left side of the main plate is fixedly connected with a supporting plate, the top of the main plate is fixedly connected with a sliding column, and the front portion of the sliding column is slidably connected with a guide rail. The bottom of the guide rail is slidably connected with a welding gun, the top of the main plate is fixedly connected with a second fixing plate, and the front portion of the first fixing plate is fixedly connected with a leakage plate. When welding is started, a first elastic telescopic plate drives a first push plate to move, and therefore a part needing to be welded can be clamped; and the inclined plate moves to push the clamping plate to move, so that the other side of the part can be clamped, the part can be more reliably and stably fixed to the workbench, and the machining precision is improved.

The invention is suitable for the technical field of transplanting machinery, and provides a soil scraping device of a transplanter planter, the soil scraping device comprises a planter, a driving mechanism and a mud scraping mechanism, the driving mechanism is installed on an engine, the driving mechanism is used for enabling the planter to perform circular-arc circulating reciprocating motion, the planter in the moving process penetrates through the mud scraping mechanism, and the mud scraping mechanism is installed on the planter. Mud attached to the surface of the planting device is removed through the mud scraping mechanism; wherein the bottoms of the front end and the rear end of the engine are fixedly provided with a first fixing rod and a second fixing rod respectively, the lower end of the second fixing rod is connected with a movable rod through a buffer assembly, and the bottom end of the movable rod is connected with the mud scraping mechanism; the mud scraping mechanism is further connected with the bottom end of the first fixing rod through a second reset spring. The driving mechanism is used for pushing the duckbilled device of the planting device to do circular-arc circulating reciprocating motion, the duckbilled device in the moving process penetrates through the mud scraping mechanism, and mud attached to the surface of the duckbilled device is removed through the mud scraping mechanism.

The present invention relates to a hydraulic rotary drilling machine and a control method thereof, belonging to the technical field of mechanical equipment, including a platform frame, a plurality of cutting head assemblies are arranged at the lower end of the platform frame, a reducer is arranged between the cutting head assembly and the platform frame and is connected to the cutting head assembly by spline shaft nesting transmission, a pair of scraper frames which are distributed in a mirror-symmetrical manner on the left and right and are bolted to the lower end of the platform frame are arranged at the rear end of the cutting head assembly, and a grab bucket assembly which is movably inserted and sleeved with the platform frame is arranged at the upper end of the platform frame. It has the characteristics of compact structure, convenient disassembly, good operation stability and long service life. It solves the problem that a base cannot be built on a mountain. It improves the stability of drilling operation, reduces shaking caused by high-speed operation, and avoids jamming and drill back phenomena.

The five-axis numerical control machine tool comprises an electric push rod and a machine box, a sealing plate arranged on the machine box rotatably exposes an internal machining space, the bottom of the machine box communicates with a clamping assembly, the bottom of an inner cavity of the machine box is fixedly connected with a protection assembly, and the top of the protection assembly is slidably connected with an auxiliary frame. A cooling assembly is fixedly connected to the position, away from the protection assembly, of the machine box. According to the five-axis numerical control machine tool for workpiece milling, the situation that the temperature of a milling device and the temperature of a workpiece are too high, so that use of equipment is affected is avoided, and therefore the situation that the surface of the workpiece is scratched due to the fact that chippings are accumulated on the clamping assembly is avoided, the machining precision of the milling device is improved, and the workpiece machining difficulty is reduced; and the influence of circulation of the cooling liquid on cooling is avoided, the workpiece machining integrity is ensured, and chippings generated by the workpiece and the cooling liquid are collected through the clamping assembly.

The invention relates to the technical field of essential oil extraction and analysis, in particular to a vitex trifolia leaf essential oil extraction and component analysis and identification method which comprises the following steps: S1, pretreatment of vitex trifolia leaves: flushing the vitex trifolia leaves with clear water for 10-15 minutes, drying moisture on the surfaces of the vitex trifolia leaves, preparing an extraction device, setting the extraction device to be in an initial state, and extracting the vitex trifolia leaves; putting vitex trifolia leaves into an extraction device; s2, squeezing the vitex trifolia leaves: squeezing the vitex trifolia leaves of which the surface moisture is dried by an extraction device for 5-10 minutes to obtain squeezed vitex trifolia leaves and a vitex trifolia leaf oil-water mixture; s3, grinding the vitex trifolia leaves: grinding the squeezed vitex trifolia leaves for 10-15 minutes through an extraction device to obtain ground vitex trifolia leaves and a vitex trifolia leaf oil-water mixture; s4, filtering vitex trifolia leaf essential oil: filtering vitex trifolia leaves and the vitex trifolia leaf oil-water mixture through an extraction device to obtain a vitex trifolia leaf oil-water mixture; s4, extracting vitex trifolia leaf essential oil; the device has comprehensive functions and can effectively improve the extraction efficiency.

The invention relates to a hard rock tunneling and supporting miner-bolter, which belongs to the technical field of miner-bolter, and comprises a machine body erected on a crawler belt, the middle part of the machine body is provided with a miner-bolter mechanism for crushing and tunneling hard rock, the machine body is provided with a flow guide mechanism and a conveying belt for discharging broken stones, and the top is provided with a supporting mechanism for providing temporary support; the digging and anchoring mechanism comprises a cap-shaped rotating frame, the levelness is adjusted through a first oil cylinder, the front portion of the rotating frame is connected with a pitching frame, and a second oil cylinder is used for adjusting the pitching angle. A rotating shaft is arranged on the pitching frame, a tunneling head is connected into the rotating shaft, stone jacking hammers are symmetrically arranged on the two sides of the tunneling head, and the supporting mechanism is a rock crushing cone and provided with a rotatable conical protruding part. A gravel separating disc is arranged at the rear part of the rock crushing cone, grinding balls are uniformly distributed on the gravel separating disc, and the gravel separating disc can vertically move for grinding and guiding small gravels; by means of innovative structural design and function integration, various pain points in a traditional bolter miner supporting technology are solved, and the efficiency and safety of hard rock tunnel tunneling and supporting are greatly improved.

The invention discloses a multi-person interaction method based on a large-space computing technology, and relates to the technical field of multi-person interaction. In order to solve the technical problem that in the prior art, most of existing multi-user virtual interaction systems depend on a single interaction area, so that the user experience is poor when multiple users interact at the same time, the technical scheme provided by the invention is as follows: a multi-user interaction method based on a large-space computing technology is provided. Comprising the following steps: dividing a virtual space into a plurality of functional areas; controlling the temperature of the interaction area and the non-interaction area in real time; sharing of virtual roles is realized through the cloud computing platform; a sharing conflict coordination mechanism is introduced, an operation request of a user for a virtual role is managed, and conflicts are coordinated; creating a virtual computing space and dynamically allocating computing resources by combining distributed computing and a cloud platform; a digital co-construction and sharing platform is built through a 5G network and a holographic image technology, and multi-user interaction and co-construction and sharing of virtual articles are achieved. The method is suitable for being applied to virtual reality scene building work of multi-person interaction.

The utility model discloses a plastic impact testing machine, which structurally comprises an upper top cover, a support frame, a guide shaft, a replacement door, a rubber pad, a placement table, a fixed base, a driver, an impact hammer body mechanism and an adjusting replacer, and the lower end of the upper top cover is welded with the upper end of the support frame. Structurally, the guide shaft is connected with the sliding rail groove frame arranged in the outer side of the hammer body shell for lifting and positioning, and a rolling bearing is arranged in the sliding rail groove frame, so that the movement process is smoother, and the unnecessary jamming phenomenon is avoided; furthermore, a connecting shaft is mounted in the hammer body shell, so that the weight of the counterweight thallium can be conveniently replaced and adjusted through a replacement door, and the counterweight thallium can be disassembled and changed more quickly in the impact test process of different bearing forces of different plastic parts according to needs and is fixed through a fixing shaft bolt; and the sliding wheels arranged on the inner sides of the limiting blocks can provide a smoother process in the disassembly, assembly and replacement processes.

The invention provides a view display method and device, electronic equipment and a storage medium, and relates to the technical field of computers.The method comprises the steps that a target view after a to-be-zoomed view is zoomed is determined according to a zooming operation instruction; radiating outwards by taking the position of the reference point in the view window as a center, and dividing the target view into a first preset number of view areas; and radiating outwards by taking the position of the reference point as a center, and rendering and displaying the preset number of view areas in sequence. According to the technical scheme provided by the invention, a visual lag phenomenon during re-rendering display after view zooming can be avoided, the view response speed is improved, and the view display effect is optimized.

The invention provides an extrusion device and method for cable production. The extrusion device comprises a rack, an extrusion mold, a wire conduit and a wire core surface treatment device, wherein the wire conduit is horizontally and fixedly arranged on the rack, is connected with the extrusion die and is used for guiding a wire core to enter the extrusion die; the wire core surface treatment device comprises a plurality of extrusion rods and a driving mechanism, the plurality of extrusion rods are uniformly arranged around the central axis of the wire conduit, one end of each extrusion rod is located in the wire conduit and is provided with an embossing bulge, and the other end of each extrusion rod movably penetrates through the outer side of the wire conduit in the radial direction of the wire conduit; and the driving mechanism is arranged on the outer side of the wire conduit and is used for synchronously driving the plurality of extrusion rods to reciprocate, so that the embossing bulges apply embossing on the outer surface of the wire core. The embossing is applied to the surface of the wire core, so that the contact area and the friction coefficient between the wire core and the insulating layer are increased, the adhesive force between the insulating layer and the wire core is improved, and the insulating layer is more stable and is not easy to strip or slide in the coating process.

The invention discloses a method for intelligently controlling a digital human through an action tag, and relates to the technical field of intelligent control. The method comprises the following steps: S1, determining the range and purpose of actions, classifying the actions, and determining which specific application scenes and target user groups are to be used by an action library; s2, designing a technical label system used for describing various action features and providing a basis for technical action recognition and analysis; s3, establishing a behavior control model of the digital character according to the tagged action description; and S4, through cross validation, dividing the data set into a plurality of subsets for multiple times of training and verification, and adjusting the structure of the model according to an evaluation result. According to the method, the naturalness and fluency of digital character expression can be improved, the flexibility and customization capability of the technology are enhanced, and intelligent action selection and transition are realized, so that better user experience and technical support are provided for various application scenes.

The present invention relates to the field of mining engineering technology, and in particular to an underground ore hoisting device for mining, comprising a lifting channel, a lifting frame slidably connected to the inner wall of the lifting channel, and a clamping mechanism for supporting and locking the lifting frame is provided in the lifting channel. When a power outage occurs suddenly during the ore lifting process, the electromagnet is powered off and stops adsorbing the iron plate, and under the action of spring I, the iron plate drives the ratchet bar II thereon to move away from the lifting frame and mesh with the ratchet bar I, and the lifting frame is clamped and fixed in the lifting channel through the cooperation of the ratchet bar I and the ratchet bar II, so as to support and lock the lifting frame, avoid the lifting frame from falling and causing a safety accident when a power outage occurs suddenly during the ore lifting process, and avoid a huge impact and pulling on the drive motor and the entire lifting device, thereby protecting the drive motor, and reducing the risk of breaking the steel rope I, effectively improving stability and safety.

The invention provides a voice instruction determination method, electronic equipment and a storage medium, and the method comprises the steps: obtaining a current recognition result corresponding to a to-be-processed voice sent by a user, determining whether the current recognition result is an intermediate result, carrying out the text supplement of the intermediate result in response to the intermediate result, and obtaining a corresponding prediction text, judging whether a semantic understanding task corresponding to the prediction text exists or not, if not, obtaining a semantic instruction based on the generated semantic understanding task corresponding to the prediction text, then returning to execute the step of obtaining the current recognition result and determining whether the current recognition result is an intermediate result or not, and responding to the current recognition result as a final result. Whether the semantic understanding task corresponding to the prediction text which is the same as the final result exists or not is judged, and if yes, the semantic instruction corresponding to the prediction text serves as a final instruction, so that the starting frequency of a semantic understanding module is greatly reduced; the problems that a large number of intermediate results are subjected to semantic understanding, so that the computing power is soaring, and the vehicle command response is slow are solved.

The utility model relates to the technical field of pipeline cleaning equipment, in particular to a pipeline cleaning device which comprises a flushing pipe set, the flushing pipe set comprises a hose, the left side of the hose is connected with a connecting coil pipe, the side of the connecting coil pipe is connected with a water outlet pipe, and the outer side of the water outlet pipe is in threaded butt joint with a connecting pipe. And a cleaning assembly is installed on the outer side of the hose and comprises a buckling ring buckled to the outer side of the hose, a fastening part is connected to the outer side of the buckling ring, a steel wire rope is inserted into the fastening part, and a cleaning assembly is arranged on the left side of the connecting coil pipe. The buckling ring is arranged on the outer side of the hose in a sleeving mode, the steel wire rope penetrates through the interior of the ring pipe, then the hose has toughness, the hose can move in a bent pipeline, the inner wall of the hose can be scoured through fan-shaped water flow sprayed out of the interior of the nozzle in the moving process of the hose, and cleanliness of the interior of the pipeline is guaranteed; and the convenience during cleaning is improved.

The invention discloses energy-saving tubular pile concrete admixture proportioning equipment and a method thereof, and relates to the technical field of concrete mixing equipment, the energy-saving tubular pile concrete admixture proportioning equipment comprises a mixing drum, a plurality of supports and a feeding hopper, the supports are fixedly connected to the outer surface of the mixing drum, and the feeding hopper is fixedly connected to the outer surface of the mixing drum. Transmission can be shared by the four second gears through the first gear, then balance and sharing of the transmission are achieved, the labor-saving effect is achieved, the purpose of saving energy for the motor is achieved, the rotating speed of the second gears can be higher than that of the first gear through different rotation ratios, rotation of the motor can be effectively converted, and the motor is more stable in rotation. The energy utilization rate of the motor is increased, the cement mortar can be fully mixed within a short time when being stirred by the stirring shaft, the cement mortar can form up-and-down backflow in the stirring barrel through the spiral stirring effect of the stirring shaft, and the mixing efficiency of the cement mortar is effectively improved.

The invention provides an H.323 video conference secure transmission system and method based on isolated transmission equipment, and relates to the technical field of data transmission. Comprising an extranet conference agent used for receiving a registration signaling of a conference calling terminal and transmitting the registration signaling to an intranet conference agent; after the conference called terminal completes registration, receiving a conference call of the conference calling terminal and transmitting the conference call to the intranet conference agent; receiving a call response and forwarding the call response to the conference call terminal; the intranet conference agent is used for receiving the registration signaling and the conference call sent by the extranet conference agent, and forwarding the registration signaling and the conference call to the called conference terminal; and receiving a call response sent by the called conference terminal, and transmitting the call response to the external network conference agent. According to the invention, high-efficiency transmission of audio and video data is realized, centralized management is carried out through a single-guide mode, and the system is suitable for scenes requiring low-delay and high-reliability audio and video transmission, such as online conferences, video live broadcast and multimedia applications.

The present invention discloses a powder screw conveyor for anti-sticking materials, and the present invention relates to the technical field of screw conveyors, comprising a conveying cylinder, which is used for guiding and conveying powder materials, and support frames are fixedly installed on both sides of the bottom of the conveying cylinder, and a discharge pipe is opened at the bottom of the conveying cylinder; a spiral stirring piece, which is used for stirring and conveying sticky powder materials, and a motor is fixedly installed on the outer surface of the spiral stirring piece, and a fixed frame is fixedly installed at the bottom of the motor. The powder screw conveyor for anti-sticking materials, after the powder material is introduced into the guide ball, slides downward along the inner wall of the guide ball and slides to the surface of the bent pad. At this time, the powder material sliding downward squeezes the bent pad, so that the curved sheet is concave downward and abuts against the inner squeeze sheet, so that the powder material is initially buffered by the curved sheet, so as to prevent the powder material from directly sliding into the conveying cylinder when introduced, causing toxic dust to fly and causing harm to the staff.

The utility model discloses high-pressure spraying equipment for dust treatment, which comprises a dust treatment high-pressure spraying equipment main body, a spray head height adjusting assembly is arranged in the dust treatment high-pressure spraying equipment main body, and the spray head height adjusting assembly comprises a lifting plate and a threaded rod main body. Lubricating discs are arranged on the upper portion and the lower portion of the lifting plate respectively, lubricating agents are smeared on the contact portions of the lubricating discs, the lubricating agents can form a layer of protective film on the surface, and therefore the lubricating effect is improved. And dry friction between contact parts is converted into internal friction between lubricant molecules, so that the friction force is reduced, the phenomena of abrasion and blockage are effectively avoided, and the service life of equipment is prolonged.

The utility model provides a chip test fixture and a chip test system, and relates to the technical field of semiconductor test. A movable block of the movable mechanism is provided with at least one first matching part, the first matching part is used for being matched with a second matching part on the test station so as to test the performance of the chip, and the movable block is arranged to be capable of rotating in the matching process of the first matching part and the second matching part so as to enable the first matching part to be aligned with the second matching part. And the adjusting mechanism is arranged to drive the movable mechanism to move towards the direction close to the test station when being subjected to external force of the test station, so that the first matching part of the movable block is matched with the second matching part. According to the technical scheme, the movable block can rotate in the matching process of the first matching part and the second matching part, so that the first matching part is aligned with the second matching part, the situation that the chip test fixture is blocked or cannot be butted with the test station when being butted with the test station is avoided, and the chip test fixture is ensured to be smoothly butted with the test station.

The invention discloses a 3D point cloud detection algorithm of an embedded computing platform, which relates to the technical field of 3D point cloud detection, and comprises the following steps: S1, data processing; s2, performing pretreatment; s3, feature extraction; s4, hardware acceleration; s5, software optimization is carried out; s6, target detection; s7, post-processing; and S8, outputting and displaying. According to the 3D point cloud detection algorithm of the embedded computing platform, the parallel computing capability acceleration algorithm of the embedded GPU is utilized, the programmability of the FPGA is utilized to realize customized hardware acceleration, the signal processing capability of the DSP is utilized to carry out point cloud filtering and feature extraction, hardware acceleration is realized, information processing is ensured to be more timely, and in addition, through optimization of software, the calculation efficiency is improved. According to the technical scheme, the algorithm operation memory is sufficient, the situation that due to the fact that the memory is large, information processing is not smooth is avoided, in addition, through a voxel-based method, a point-based method and a projection-based method, features are extracted from point cloud data through the three methods, and the completeness of 3D information is ensured.

The utility model relates to the technical field of elevator safety, in particular to an elevator emergency braking device which comprises an elevator body, the two side surfaces of the elevator body are in sliding connection with guide rails, the two side surfaces of the elevator body are fixedly connected with a brake caliper and a fixing base, the two side surfaces of the brake caliper are in sliding connection with wedge blocks, and the surfaces of the wedge blocks are fixedly connected with ceramic pieces. The bottom end of the wedge block is fixedly connected with a limiting column, the surface of the limiting column is sleeved with a rubber sleeve, a round rod is fixed to the surface of the fixing base, and a check block is inserted into the surface of the round rod and extrudes the surface of the fixing plate; the device has the beneficial effects that the connecting rod and the wedge block are arranged, the ceramic piece is prevented from being blocked, the braking effect on the guide rail is improved, the limiting column and the rubber sleeve are arranged, automatic reset of the ceramic piece and the wedge block is achieved, the working efficiency of the braking device is improved, the telescopic check block is arranged, rapid disassembly and replacement between the fixing base and the fixing plate are achieved, and the practicability is high. And the connection between the fixing plate and the fixing seat is firmer.

The invention belongs to the technical field of wall surface hoisting, and particularly relates to wall surface hoisting equipment for assembly type bathroom construction, the wall surface hoisting equipment comprises a supporting steel plate, the supporting steel plate is fixedly connected with a hoisting arm, an adjusting and reinforcing device is arranged on a connecting rod, and the adjusting and reinforcing device comprises a sliding plate. According to the wall hoisting equipment for fabricated bathroom construction, through the arranged adjusting and reinforcing device, a sliding plate is connected to the smooth surface of the middle of a connecting rod in a sleeving mode, then the two ends of the connecting rod are in threaded connection with nuts, a control handle is rotated to drive an internal threaded rod to rotate, and the threaded rod drives a threaded sleeve to move front and back; the threaded sleeve drives the hinged second hinge rod and the hinged third hinge rod to move, along with movement of the second hinge rod, the first hinge rod deflects, the overall length is extended, the silica gel block on the third hinge rod is driven to make contact with the wall, the contact area with the wall is increased, and therefore the friction coefficient is increased, the structural stability is enhanced, and more effective supporting is provided for the wall.

The invention relates to the technical field of grinding devices, and discloses a precision bearing machining grinding device which comprises a base, the top of the base is slidably connected with a moving table, the front portion of the moving table is fixedly connected with a fixing block, the right side of the moving table is provided with a first grinding machine, and the right side of the fixing block is provided with a second grinding machine. According to the grinding device, during grinding, a transmission wheel rotates at the top of the base through friction force, a groove is formed in the surface of the transmission wheel, and oil in an oil tank is evenly sprayed into the groove in the surface of the base through rotation of the transmission wheel; and meanwhile, condensation caused by oil in a low-temperature environment in winter can be avoided, and blockage caused by the fact that the device cannot be normally lubricated is avoided.

The utility model relates to a push-pull cutting platform of an optical fiber laser cutting machine, and belongs to the technical field of laser cutting machines. The push-pull cutting platform comprises a supporting rack, the supporting rack comprises a metal frame and a supporting grating, borders on the two sides of the metal frame are slidably connected with the two sides of the machine body frame through heavy sliding rails correspondingly, and the machine body frame is provided with a push-pull air cylinder fixedly connected with the front ends of the borders on the two sides of the metal frame. L-shaped positioning plates are connected to the front portions of the two sides of the machine body frame respectively, flat plate parts of the positioning plates on the two sides are located on the upper sides of borders on the two sides of the metal frame respectively, and rollers on the bottom faces of the positioning plates are pressed on the borders on the two sides of the metal frame. The two sides of the push-pull cutting platform are connected with the machine body frame through the heavy sliding rails, it is guaranteed that the platform has larger bearing capacity, the positioning plates are arranged on the two sides of the machine body frame respectively to press the cutting platform, it is guaranteed that the platform still has good stability after stretching out, and the burden of the heavy sliding rails is relieved.

The utility model discloses an integrated thin sunshade curtain which comprises a glass assembly, a front cross beam assembly, a motor transmission assembly, a front sunshade curtain body, a rear sunshade curtain body and a flexible shaft assembly. The glass assembly comprises glass, a guide rail and a PU covered edge, and the guide rail is connected with the PU covered edge; the front cross beam assembly is connected with the PU covered edge, and the front cross beam assembly is provided with a mounting groove; the front sunshade curtain and the rear sunshade curtain are installed on the guide rails respectively, and the movable ends of the front sunshade curtain and the rear sunshade curtain are connected with the flexible shaft assemblies respectively. And the flexible shaft assembly is movably mounted in the guide rail and the mounting groove and is matched with the motor transmission assembly. The integral structure of the utility model is convenient for integral installation and use; the motor transmission assembly is matched with the flexible shaft assembly to achieve opening or closing of the front sunshade curtain and the rear sunshade curtain, the front sunshade curtain and the rear sunshade curtain are of a split structure, the curtain rolling stroke is shortened, and blocking can be avoided; and the combined design of the guide rails and the PU covered edges can reduce the manufacturing cost, logistics management and later local disassembly and maintenance are facilitated, and popularization and application are facilitated.

The invention belongs to the technical field of tire production, and particularly relates to a tire inner cavity grinding machine for tire production, which comprises a grinding table and a grinding plate, a rotating table is rotatably mounted in the grinding table, a mounting box is fixedly mounted at the top of the rotating table, and a hydraulic cylinder is fixedly mounted on one side of the mounting box; a movable connecting block is fixedly mounted at the output end of the hydraulic cylinder, a second vertical sliding groove is formed in the side, provided with the hydraulic cylinder, of the mounting box, the polishing plate in the initial state horizontally enters the inner side of a tire, the polishing plate is conveniently placed into the inner side of the tire, the process of placing the polishing plate into the inner side of the tire is greatly simplified, and the polishing efficiency is improved. And after the grinding plate completely enters the inner cavity of the tire, the grinding plate can be in a vertical state, so that the outer side of the grinding plate is attached to the inner side of the tire, the inner side of the tire is conveniently attached, the grinding effect is guaranteed, the uniformity and comprehensiveness of grinding are improved, and it can be guaranteed that the grinding effect reaches the optimal state.