209 results about "Needle penetration" patented technology

The invention discloses a preparation method of a high-density carbon-carbon composite material, which comprises the following steps: soaking a needled prefabricated body in a resin mixed solution, vacuumizing and dipping, drying in a drying oven, then putting into a mold, carrying out hot-pressing curing molding, and carbonizing to obtain the high-density carbon-carbon composite material. According to the preparation method, the carbon-carbon composite material with the density larger than 1.2 g / cm < 3 > can be obtained through one-time dipping and one-time hot pressing, the production period is short, energy consumption is low, the production cost is remarkably reduced, and the carbon-ceramic composite material with the density larger than 1.2 g / cm < 3 > can be obtained through one-time dipping and one-time hot pressing. And the prepared carbon-carbon composite material can achieve a high-density effect when the density is low, and has the characteristics of good air tightness, difficulty in deformation at high temperature and the like.

The utility model discloses needling equipment with a mesh belt mesh feeding mechanism. The needling equipment comprises the mesh belt mesh feeding mechanism and a needling mechanism, the mesh belt mesh conveying mechanism comprises two conveying meshes which are arranged up and down at an interval, and a fiber mesh is conveyed between the two conveying meshes; the up-down conveying net is composed of a plurality of net belts which are sequentially arranged in parallel, and gaps allowing needles of the needling mechanism to penetrate through are formed between the adjacent net belts. The mesh belt mesh conveying mechanism is adopted to replace a common mesh pressing roller, a mesh stripping plate and a mesh supporting plate, the phenomenon that a fluffy fiber mesh is blocked when entering a needling area due to the fact that the fiber mesh rebounds due to the fact that gaps exist between the mesh pressing roller and the mesh stripping plate as well as between the mesh pressing roller and the mesh supporting plate can be avoided, the fiber mesh is clamped and synchronously conveyed between the upper conveying mesh and the lower conveying mesh, and the needling efficiency is improved. The efficiency of the needling equipment can be greatly improved, and the process speed limitation of the traditional needling equipment is broken through.

The invention relates to the technical field of needling machine equipment, in particular to a needling device suitable for a special-shaped composite material preform, which comprises a mounting seat, a speed reducing motor is connected to the mounting seat, the output end of the speed reducing motor is connected with a rotating shaft, the rotating shaft is connected with an eccentric through hole of an eccentric wheel, and the eccentric wheel is rotatably connected in a cylindrical needle bearing; the cylindrical needle bearing is inserted into a second through hole in the end of the push plate, the push plate is in sliding fit with the mounting base, the other end of the push plate is connected with the quick-change needle row, the other end of the quick-change needle row faces the tool, the bottom of the mounting base is connected with the horizontal moving part, and the quick-change needle row is adjusted to face the normal direction of a prefabricated body and conducts needling on the prefabricated body. The surface of the R-angle prefabricated body and the surface of the conical prefabricated body can be needled, and then the purpose of tight combination of fibers in the prefabricated body is achieved.

The invention provides a needling method cement blanket and a processing technology thereof, and relates to the technical field of cement blankets, the needling method cement blanket comprises a top fabric layer, function complementation is achieved through a three-layer composite structure of the top fabric layer, a curable layer and a bottom fabric layer, a top polyester non-woven fabric has filtering and protecting effects, particles of the curable layer can be prevented from seeping out, and the effect of preventing the particles from seeping out is achieved. The high-strength polypropylene fiber woven fabric at the bottom layer provides stable support, so that the shape stability in construction and use is guaranteed; the integrated connection characteristic is prominent, all the layers are tightly combined through the needling technology, the layering problem is avoided, and the overall reliability is improved. The real-time monitoring module arranged on the needling machine can dynamically capture the thickness change of the curable layer, the response time is shortened to be within 0.5 second, and the thickness deviation can be found in time; deviation correction is automatic, when the thickness exceeds the threshold value of + / -0.5 mm, the spreading speed is automatically adjusted, manual intervention is not needed, the thickness out-of-tolerance rate is reduced to 1% or below from 15% or above of a traditional technology, and the problem of uneven thickness is thoroughly solved.

The invention discloses a needle-punched glass fiber aerogel sound-absorbing plate which comprises the following components: 30-50% of a silicon dioxide aerogel precursor, 20-40% of a needle-punched glass fiber felt, 1-3% of a silane coupling agent, 0.5-1% of a dispersing agent, 0.2-0.5% of a defoaming agent, 3-8% of reinforced fibers and 2-5% of a binder. Through needled glass fiber mat reinforcement, silane interface modification and normal-pressure drying processes, collaborative optimization of high strength (compressive strength is greater than 0.64 MPa), high sound absorption performance (sound absorption coefficient is greater than 0.8) and low heat conductivity coefficient (0.018) of the material is realized. The preparation process is simple, the cost is low, and the material is suitable for noise treatment in the fields of buildings, automobiles, aerospace and the like and has remarkable economic benefits and environmental benefits.

The invention provides a machine learning-based acupuncture combined transcranial magnetic stimulation scheme selection method, which comprises the following steps of: performing acupuncture on an object, recording acupuncture data, and obtaining acupuncture text characteristics; the acupuncture data comprises acupuncture object data and acupuncture operation data, the acupuncture object data comprises gender, age, disease name, symptom, medical history and living habit, and the acupuncture operation data comprises body position, acupuncture point, acupuncture sequence, needle inserting, needle moving and duration; performing transcranial magnetic stimulation on the needled object for multiple times to obtain transcranial magnetic stimulation data, the transcranial magnetic stimulation data including hot spot positioning, working parameters, process data and effect data, and obtaining transcranial magnetic stimulation features; establishing association between acupuncture text features and transcranial magnetic stimulation features, constructing a database storing multiple groups of acupuncture combined transcranial magnetic stimulation schemes, and selecting a layered random forest regression model for training; and selecting an acupuncture combined transcranial magnetic stimulation scheme from the database according to actual data by using a reverse prediction method.

1. The name of the design product: needle plate polishing mold for needle loom. 2. The use of the design product: used for clamping the needle plate of the needle loom and guiding the polishing treatment of the surface and needle hole of the needle plate by abrasive. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention discloses a forming method of an aerogel heat insulation part, which comprises the following steps: selecting a needling die, a forming die and a porous pressing plate according to the shape and the size of a target heat insulation part, needling and forming a fiber preform on the needling die, coating the preform with demolding cloth, and sewing at the edge; the prefabricated body is arranged in a forming mold, the mold gap is adjusted twice, two-step vacuum-assisted sol-gel dipping compounding is conducted, gel aging, solvent replacement and supercritical drying are completed together with the mold, and a finished product is obtained after demolding. According to the method, machining is not needed, fiber completeness can be kept, thin part machining cracking is effectively avoided, the product thickness precision and surface flatness are improved, the defects of air holes, insufficient pouring and the like are overcome, and the method is suitable for preparing thin aerogel heat insulation parts of various structures.

The utility model relates to the technical field of composite needle-punched non-woven fabric production, and discloses a composite needle-punched non-woven fabric winding mechanism which comprises a connecting frame, the front inner side and the rear inner side of the connecting frame are rotationally connected with a first guide roller, an electric push rod is started through a fixed winding quick-release mechanism, then a hexagonal column of the electric push rod is completely separated from a winding roller, and the first guide roller is connected with a second guide roller. Then the winding rollers are sleeved with the corresponding winding drums of different models, the rotating blocks are manually rotated, so that the winding drums are fixed, the winding rollers of different models are rapidly fixed, the winding work of the composite needle-punched non-woven fabrics of different models is met, meanwhile, the operation is reversely repeated in the later-period disassembling process, and the working efficiency is greatly improved. According to the device, the hexagonal column of the device is separated from the winding roller, so that the subsequent composite needle-punched non-woven fabric and the winding roller can be conveniently and rapidly disassembled, the situation that more time and energy are spent on workers is avoided, meanwhile, the outer portion of the clamping block does not make contact with the inner wall of a winding barrel, and winding rollers of different models can be rapidly disassembled.

The invention relates to the technical field of spiral paving, and discloses a spiral paving device which is characterized in that a rotary paving mechanism is arranged on the left side of the top of a horizontal ground, a movable paving mechanism is arranged on the right side of the rotary paving mechanism, and a paving working mechanism is arranged on the front side of the movable paving mechanism; a prepreg cloth transferring mechanism is arranged on the right side of the paving working mechanism, an unwinding and cutting mechanism is arranged on the right side in the prepreg cloth transferring mechanism, the rotary paving mechanism comprises a fixing table, the fixing table is arranged at the top of the horizontal ground, and the bottom of the fixing table is attached to the top of the horizontal ground; and the top of the fixed table is rotationally connected with a rotating structure. A first needling tooling at the tail end of the six-axis robot firstly loosens a material piece, the material piece is laid on a mold body, meanwhile, a rubber strip is clamped into a groove in the mold body, an air cylinder drives a fixing structure to rotate on the inner side of a fixing frame, the material piece is controlled on a mold, and an external motor drives a rotating structure to drive the whole mold to rotate.

A composite textile can include one or more nonwoven fiber webs (e.g., with staple fibers) joined to one or more functional layers (e.g., nonwoven layer with elastomeric continuous filament fibers). In at least some examples, the layers are joined by fiber plugs, which include bundles of staple-fiber portions extending through (and frictionally retained within) openings (e.g., needle-penetration openings) within the composite textile. In addition, the fiber plugs can have varied properties that are collectively optimized to impart desired properties (e.g., stretch properties) to the composite textile. For example, the fiber plugs can include different numbers of fibers and can be anchored at different depths within the composite textile.

The utility model relates to the related field of cotton quilt needling machines, in particular to a cotton quilt needling machine for cotton quilt production, which comprises a device body, the device body internally comprises a main frame, a storage component and an adjusting component, a needling frame is arranged at the top of the main frame, a control box is arranged on one side of the lower end of the main frame, and the control box is connected with the storage component. A mounting groove is formed in one side of the lower end of the main rack, a limiting hole is formed in the inner wall of the mounting groove, the storage assembly is rotationally mounted in the mounting groove, the adjusting assemblies are mounted on the two side walls of the main rack, the storage assembly comprises a storage box, a storage groove is formed in the inner side of the storage box, and the storage groove is formed in the inner side of the storage box. An extension plate is rotationally arranged in the storage groove, the adjusting assembly comprises a fixing sleeve, the storage box and the extension plate can be conveniently taken and placed, the processed end of the cotton quilt can be conveniently supported and placed, the supporting rod can be rotationally adjusted, the unprocessed side of the cotton quilt can be conveniently supported and placed, and the rear end of the cotton quilt is prevented from mopping the ground.

1. Name of the product in this design: Lawn Lamp (Needle-pierced Guanxiang Four Scenes). 2. Purpose of this design: for decorative lighting. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted. 6. Other situations requiring explanation: Other explanations: The front view, rear view, left view, and right view of the changed state are the power-off state of the front view, rear view, left view, and right view of this application.

The application discloses a kind of bubble elimination device and method for complex curved surface component automatic laying, belong to composite material laying technical field, including rack, be provided with needle roller mechanism, compaction roller mechanism on rack;Needle roller mechanism includes several needle roller, be provided with needle on needle roller, each needle roller is connected with rack by first attitude adjusting component, and first attitude adjusting component realizes the attitude adjustment of needle roller;Compaction roller mechanism includes several compaction rollers, each compaction roller is connected with rack by second attitude adjusting component, and second attitude adjusting component realizes the attitude adjustment of compaction roller.The application is integrated with needle roller mechanism, compaction roller mechanism, each needle roller is adapted to a first attitude adjusting component, each compaction roller is adapted to a second attitude adjusting component, to make needle roller mechanism, compaction roller mechanism can adapt to the defoaming compaction operation of different curvature component surface sheet.

The utility model provides a needling rolling device for a perforated film, which comprises a rack, an upper roller and a lower roller are arranged on the rack, a plurality of arrayed conical bulges are arranged on the surface of the upper roller, grooves corresponding to the bulges are arranged on the surface of the lower roller, raised positioning thimbles are arranged at the bottoms of the grooves, and the positioning thimbles are arranged on the surfaces of the upper roller and the lower roller. And the height of the positioning ejector pin is lower than the depth of the groove. By means of the structure, when a large hole of a punching film is punched, the punching film passing through can be rolled under the cooperation of the protrusion of the upper roller and the groove of the lower roller, and the punching position can be positioned under the arrangement of the positioning ejector pin of the groove, so that the accuracy of the hole position is improved, and the punching efficiency is improved. The deviation of the hole site is avoided, and the processing quality of the large hole of the perforated film is improved.

To provide a tufted carpet with no edge processing using a needle punch base fabric, which does not require an edge processing step, can reduce the number of steps in carpet manufacturing, shortens the production time per carpet, eliminates the need for thread materials and machine maintenance for edge processing, and further eliminates labor costs, thereby reducing the overall production cost. [Solution] The borderless tufted carpet is composed of, from top to bottom, a yarn layer 2, a needle-punched base fabric layer 1, an emulsion layer 3, a binder layer 4, a backing fabric layer 5, and an anti-slip layer. The yarn layer is tufted onto the needle-punched base fabric layer. The needle-punched base fabric layer is a needle-punched nonwoven fabric and is integrated with the binder layer by either lamination with a binder or heat and pressure consolidation. The emulsion layer is evenly applied to the underside of the needle-punched base fabric layer. The binder layer is made of one of PE, EVA, PO, SBR, asphalt, PU, ​​or TPE.

This invention provides a method for assessing the risk of internal short-circuit failure in a battery cell. The method includes acquiring the cell's parameter information and calculating the theoretical limiting short-circuit resistance value; preparing a test electrode assembly; performing a needle penetration test on the test electrode assembly; measuring and obtaining the actual short-circuit resistance value of the electrode plates in the test electrode assembly; and comparing the actual short-circuit resistance value with the theoretical limiting short-circuit resistance value to determine the level of short-circuit failure risk of the electrode assembly. This method, by comparing the theoretical limiting short-circuit resistance value with the actual short-circuit resistance value, can quickly assess the level of short-circuit failure risk of the test electrode assembly, shorten the assessment cycle, provide feedback and guidance for product design, and save on cell sample manufacturing and testing costs by using a test electrode assembly instead of a real battery cell.

The invention relates to the field of trenchless repair, in particular to a permanent inner film for a UV-CIPP drainage material, which comprises a PET needle-punched cloth layer serving as an inner layer, a surface layer serving as an outermost layer, a PA layer bonded with the surface layer, and a bonding layer for bonding the PET needle-punched cloth layer and the PA layer, the PA layer and the surface layer are heated and extruded through three screws of film spraying equipment and then compounded through a die head, the temperature resistance and styrene erosion and elongation resistance of the inner film in the construction process are improved, the stability of the material and the influence of adverse factors in the material construction process are greatly improved, meanwhile, the permanent inner film serves as the inner wall of the pipeline, and the service life of the pipeline is prolonged. The flow velocity of the pipeline can be greatly increased, and the problem that the drainage UV-CIPP material is not resistant to internal pressure can be solved.

A method and system for the production of a web the fibers of which form a mean angle with respect to the longitudinal direction. The method and system include the passage of the web through a looping system, the passing of the web over a conveyor provided with brushes, the deposition of a first pre-needle-punched layer of fibers over the accumulated undulations, the assembling of the accumulated undulations with the first pre-needle-punched layer by needling, the assembling of the structure with a second pre-needle-punched layer of fibers, so as to obtain a sandwich structure, and the separation of the sandwich structure so as to obtain two symmetrical velour coverings. The web is a card web with a mean angle between 5 and 10° and an area density between 80 and 120 g / m2. The method includes a longitudinal drawing of the web, with a stretch ratio between 1.5 and 2.

A drug delivery device includes an ingestible pill including an enteric coating that covers a patch which defines therein a chamber, the patch being constructed to allow entry of liquid into the chamber. The patch includes at least one raised pouch that protrudes outwardly from the patch and which is in fluid communication with the chamber. The at least one raised pouch includes at least one drug-delivery needle. A gas-generating substance is disposed in the chamber. The gas-generating substance is configured to release gas after the liquid has entered the chamber, the gas being flowable into the at least one raised pouch.

The utility model belongs to the technical field of needling machines, and discloses a special-shaped fabric needling machine which comprises a needling module, a pressing rod is movably arranged on the needling module in a penetrating mode, a pressing plate is connected to the bottom of the pressing rod, a plurality of protruding points are arranged on the lower surface of the pressing plate, needle holes are formed in the pressing plate, needles are connected to the needling module, and the needles and the needle holes are oppositely arranged. The pressing rod is sleeved with a spring. According to the special-shaped fabric needling machine, the pressing operation of the thickness of the fabric can be achieved through the pressing plate, and due to the design of the protruding points on the lower surface of the pressing plate, the contact face between the pressing plate and the fabric is greatly reduced, more Z-direction fibers are introduced when the needling module conducts needling operation, and therefore the interlayer strength is improved.

This application provides a flexible production line capable of producing multi-grammage PET filament composite materials, relating to the field of nonwoven fabric production equipment technology. The production line includes, in sequence, a raw material processing unit, a mixing unit, a screw melt extrusion unit, a filtration unit, a metering extrusion unit, a drawing and filament forming unit, a hot air preheating unit, and a path switching mechanism for switchable high-grammage and low-grammage paths. The high-grammage path includes a cross-laying unit, a needle-punching composite unit, a slicing unit, and a hot-pressing unit, while the low-grammage path includes a hot-rolling unit and a winding and slitting unit. The drawing and filament forming unit employs a three-section fiber drawing machine (upper, middle, and lower), with a 30°–45° deflected airflow introduced in the middle section. This application achieves flexible switching between high-grammage and low-grammage products through the path switching mechanism, enabling the production of PET filament composite materials ranging from 9 g / m² to 2600 g / m² on the same production line, suitable for applications such as automotive sound insulation materials and filter materials.

This invention discloses an intelligent, efficient, and low-damage garlic scape harvester, comprising a walking base on which a divider, a pre-processing mechanism, a clamping and conveying mechanism, and a storage bin are mounted. The pre-processing mechanism includes a needle holder, needles, and a pushing mechanism, as well as a strip plate arranged parallel to the needle holder, with through holes corresponding to each needle. A guide mechanism and a spring are provided between the strip plate and the needle holder, the spring causing the strip plate to tend to move away from the needle holder. The pre-processing mechanism also includes a holding block and a driving component, the holding block being able to enter or leave the space between the needle holder and the strip plate under the action of the driving component. In this invention, on the one hand, different functional states can be determined according to the characteristics of the garlic scape for needle piercing or clamping operations. On the other hand, it can effectively improve the success rate of needle penetration into the garlic scape, ensuring that the needles can be successfully pulled out of the garlic scape, preventing damage to the garlic scape and leaves due to untimely needle removal.

A shape forming tool for pre-carbonization shaping of a fibrous preform is provided, comprising a rounded preform and an inner die to fit within the preform. The rounded preform may be a cylindrical, conical, or frustoconical shape. The inner die may be of a non-uniform diameter and / or have complex features. The preform may shrink to conform to the inner die.

A prefabricated segment abutted seam needling minimally invasive grouting plugging method is used for plugging a tunnel (11), a plurality of shield segments (1) are spliced in a staggered mode to form the prefabricated segment abutted seam needling minimally invasive grouting plugging method, each shield segment (1) mainly comprises a main body inner side (12), a water stop belt (3) is arranged on the lower portion of the periphery of the end of each main body inner side (12), the outer layer of each shield segment (1) is a main body outer side (8), and the outer layer of each shield segment (1) is provided with a water stop belt (3). A connecting area (14) used for connection is arranged at the end of the main body inner side (12), a grouting machine injects inorganic gel grouting materials into the position between the water stop belt (3) and the main body outer side (8) through a needle tube (9-2), and the soil facing face reconstructed water stop belt (10) is formed. The construction method has the beneficial effects that the grouting reconstructed waterproof belt is formed between the water stop belt and the protective layer, so that the waterproof performance of the tunnel can be effectively improved, and the waterproof performance of the tunnel is enhanced.

The application provides a needling device for a carbon-carbon crucible, and relates to the technical field of needling devices.The application is provided with a first needling unit and a second needling unit and is arranged at both ends of a crucible part to perform needling operation, and the application is further provided with a control unit which is electrically connected with the crucible mounting unit, the first needling unit and the second needling unit.In the whole operation process, the application can realize automatic needling movement mode.Compared with the traditional manual operation mode, the application can ensure that the force of each needling is uniform, the needling depth and the needling density are kept uniform, and the uncertainty of relying on manual operation experience is eliminated.The application can ensure product quality, reduce labor intensity of manual operation, and is more efficient in needling work efficiency.

The utility model provides a needle penetration detection device, and relates to the technical field of material testing. The needle penetration detection device comprises a connecting rod, a hammer body, a bottom plate and a detection needle, a first moving groove is formed in the hammer body, and the connecting rod is in sliding connection with the first moving groove; a second moving groove is formed in the top of the bottom plate, the connecting rod is slidably connected with the second moving groove, and the bottom of the bottom plate is connected with one end of the detection needle; a first sensor is arranged at the bottom of the bottom plate; a second sensor is arranged at the other end of the detection needle; a calculator is arranged on the side face of the bottom plate and used for calculating the penetration degree of the cold ramming paste according to the depth and the temperature. Needle penetration is calculated by introducing a variety of sensors and parameters, not merely depending on depth measurement. According to the method, the influence of the temperature factor on the cold ramming paste is considered, more comprehensive measurement data is provided, and the reliability of needle penetration detection is improved. Meanwhile, the sensor is used for measurement, errors caused by manual detection are reduced, and the accuracy of needle penetration detection is improved.

The application provides a needle punching rubber extraction method and device, and particularly relates to the following steps: S10: adjusting a needle punching mechanism to a set initial position, and obtaining a rubber extraction instruction; S20: according to the rubber extraction instruction, moving the needle punching mechanism to a target needle punching point in a first direction, and after the needle punching mechanism reaches the target needle punching point and completes the needle punching operation, moving the needle punching mechanism in a second direction; wherein, when the needle punching mechanism moves to a trigger position in the first direction or the needle punching mechanism moves to the trigger position in the second direction, a walking mechanism starts to move along the displacement direction of a guide rail frame to drive the needle punching mechanism to move along a rubber tree; S30: when the needle punching mechanism reaches a next needle punching position of the rubber tree, obtaining the rubber extraction instruction again, moving the needle punching mechanism to the target needle punching point in the first direction according to the rubber extraction instruction, and performing the needle punching operation; and S40: repeating steps S20 to S30 until the needle punching operation of the whole rubber tree is completed. The needle punching rubber extraction method ensures operation accuracy and reduces dependence on manual work.