222results about "Domestic nets" patented technology

The invention relates to the technical field of silk-screen printing, and discloses a mesh straightness optimizing device which comprises a supporting frame, first supporting plates are fixedly connected to the four corners of the inner side of the supporting frame, one ends of the multiple first supporting plates are fixedly connected with the same first inner frame, and a fixing frame is arranged on the upper side of the supporting frame; second supporting plates are fixedly connected to the four corners of the inner side of the fixing frame, one ends of the multiple second supporting plates are fixedly connected with the same second inner frame, multiple hollow plates are fixedly connected to the periphery of the top of the fixing frame at equal intervals, and rotating shafts are rotatably connected to the inner sides of the multiple hollow plates; and the outer sides of the multiple rotating shafts are fixedly connected with L-shaped plates. When a sliding block moves, an L-shaped plate is driven to rotate through a movable plate, so that a roller is driven to move downwards to press a single net wire, the tightness of the single net wire can be adjusted, and the net wire tension of each part on a net plate can be accurately controlled.

The invention relates to a filter screen and a preparation method and application thereof, and belongs to the technical field of filtering equipment, the filter screen comprises a hydrophobic enhancement layer, a pre-filtering layer and a core filtering layer which are stacked in sequence; the hydrophobic reinforcing layer comprises the following components: metal fibers; the pre-filtering layer is prepared from the following components: basalt fibers; and the core filter layer comprises the following components: polytetrafluoroethylene fibers and polyether-ether-ketone fibers. By designing the structure of the filter screen, the filter screen which can stably work in a high-temperature environment, has excellent hydrophobic performance and filtering efficiency and is controllable in manufacturing cost is obtained.

Disclosed in the present application are a shielding PVC mesh-sandwiched material and a preparation method therefor. The shielding PVC mesh-sandwiched material comprises a mounting layer, a PVC coating, a polyester fiber mesh cloth layer, a PVC coating, a bonding layer and an electromagnetic shielding layer which are sequentially arranged, and the PVC coating comprises the following components in parts by weight: 90-100 parts of a PVC resin; 60-75 parts of a plasticizer; 3-6 parts of a stabilizer; 2-4 parts of soybean oil; 10-18 parts of titanium dioxide; 25-45 parts of calcium carbonate; 15-40 parts of glass beads; 6-15 parts of a flame retardant; 1-3 parts of an anti-UV agent; 1-2 parts of an antioxidant; 2.5-4 parts of a mold inhibitor; and 5-10 parts of a composite polymer. The shielding PVC mesh-sandwiched material of the present application can be stably used in a high-temperature environment for a long time and can have a stable and excellent shielding effect, thereby greatly improving the overall applicability.

Described is an insect net strip produced from a wide insect net which has been cut in a warp direction (xnet) by means of a one-step ultrasonic cutting and welding process. The insect net strip includes warp yarns and weft yarns extending substantially perpendicular to each other and at least 90% of the warp and weft yarns are monofilament yarns made of a thermoplastic material. After cutting and welding process the insect net strip has a first and a second edge extending parallel to said warp yarns each including a deformation zone being constituted by consolidated thermoplastic material deriving at least from said weft yarns. The deformation zone has a width (wdz) in the transverse direction (ystrip) of between 0.5-35 times the weft yarn diameter (øwe). At least 90% of gaps between adjacent weft yarns in the deformation zone are closed by consolidated thermoplastic material at least from the weft yarns which has been melted together to form a continuous or substantially continuous reinforced band-shaped edge portion of said insect net strip. The insect net strip is suitable for use in accordion-style constructions in greenhouse ventilation openings. A method for producing the insect strips is also described.

The utility model relates to the production of fiber-reinforced polymer mesh made of non-metallic materials, used for reinforcing masonry and brickwork, concrete structures, for soil reinforcement, as well as for fencing and increasing the service life of roads.The task of the utility model is to create a FRP mesh having high consumer characteristics, physical and mechanical properties, while ensuring high axial tensile strength of both longitudinal and transverse rods.The FRP mesh is made of longitudinal and transverse rods connected to each other in accordance with the principles of the utility model; the mesh cell zone is formed by connecting cured and uncured rods at a right angle with subsequent curing of the mesh, in that case the connection of rods is carried out by feeding bundles of roving strands belonging to the formed longitudinal rod that are divided into strands of unequal thickness, are oriented perpendicularly to the longitudinal axis of the transverse rod and cover areas of its radial surface on opposite sides, which leads to the formation of cavities between rectilinear sections of the longitudinal rod and the surface of the transverse rod (FIG. 6, Table 2)

The invention relates to the technical field of papermaking mesh production, in particular to a rapid pressing device for cylindrical forming of a papermaking mesh and a using method.The rapid pressing device comprises a reducing mechanism which comprises a base plate, a reducing cylinder arranged above the base plate, a locking disc coaxially arranged at one end of the reducing cylinder and a limiting arc rod concentrically arranged on the outer side of the locking disc; the radian of the limiting arc rod is alpha, and alpha is larger than or equal to 270 degrees and smaller than or equal to 330 degrees. The forming mechanism is arranged above the side wall of the variable-diameter cylinder and comprises an arc pressing plate, an arc movable plate coaxially arranged on one side of the arc pressing plate and a linkage ring concentrically connected to the outer side of the locking disc in a sleeving mode; the driving mechanism is arranged below the linkage ring and comprises a second fluted disc meshed with the second ring teeth and a motor used for driving the second fluted disc to rotate, and the motor is fixedly installed on the top face of the base plate. And the production of unqualified products can be effectively reduced.

The invention belongs to the technical field of geogrids, and discloses a geogrid with a drainage function and a manufacturing device and method.The geogrid comprises a plurality of grid strips, the grid strips are divided into drainage strips and common strips, each drainage strip comprises a groove-shaped strip body, a drainage groove is formed in the groove-shaped strip body in the length direction of the groove-shaped strip body, and the common strips are arranged in the drainage groove. Geotextile is arranged on the groove-shaped strip body and located on the notch side of the drainage groove, the common strip comprises a rectangular strip body and a groove-shaped strip body, a plurality of fiber tows are arranged in the rectangular strip body at intervals, drainage strips are adopted as the longitudinal grid strips, and drainage strips or common strips are adopted as the transverse grid strips. The design of the longitudinal drainage strips is adopted, the drainage channel penetrating in the longitudinal direction is formed, free water in the soil body can be rapidly collected and directionally drained out of an engineering area, the soil body saturation degree is effectively reduced, the residence time of water in the soil body is shortened, and the problems that due to water accumulation, the dead weight of the soil body is increased, and the bearing capacity is reduced are solved.

A knitted net (1) for round balers comprises a plurality of equidistant chains (2), arranged parallel to a longitudinal direction of development. Each chain (2) comprises a plurality of knots (3) placed at regular intervals. The adjacent chains (2) are connected to each other by transverse threads (4), at the knots (3). Each transverse thread (4) comprises a plurality of segments (5). In particular, each segment (5) develops between a first knot (3) of a chain (2) and a second knot (3) of an adjacent chain (2), located at a position preceding or following the first knot (3). Each chain (2) comprises a single longitudinal thread (6).

A cushion, a manufacturing tool, and a method of manufacture. The cushion comprises a filament mesh structure that comprises a set of filaments. The tool includes a funnel and a corresponding extension that are configured to shape and cool the filament mesh structure, respectively. The method includes forming the filament mesh structure via the tool.

The invention relates to the technical field of plastic processing, and discloses a papermaking polyester net production device which comprises a fixed side, a movable side arranged on the outer side of the fixed side and matched with injection molding, a cooling liquid channel fixedly installed on the inner surface of the movable side and matched with a cooling material, and a branch pipe fixedly connected to the lower portion of the cooling liquid channel. And the first electromagnetic valve is fixedly mounted on the outer surface of the branch pipe and cooperatively controls the flow direction of the cooling liquid. According to the mold, cooling liquid can be controlled to enter the cooling channel to cool materials through the mold body, or the cooling liquid can be controlled to enter the filtering tank, particulate matter in the cooling liquid can be intercepted and removed through cooperation of the filtering assembly, the sweeping assembly and the waste discharging assembly, and the cleanliness of the cooling liquid is ensured; the problems of cooling channel abrasion and blockage caused by excessive impurities are reduced; through cooperation of the force storage assembly and the force application assembly, the filtering tank can be impacted by the pendulum bob to generate vibration, and stubborn particles attached to the filtering net are vibrated down through vibration.

The utility model relates to the technical field of silk screen processing, in particular to a silk screen fuse machine which comprises a fuse machine body, an installation frame is fixedly connected to the bottom of the inner wall of the fuse machine body, a hydraulic cylinder is installed on the inner wall of the installation frame, and the output end of the hydraulic cylinder is fixedly connected with a top plate. A supporting frame is fixedly connected to the side face of the inner wall of the fuse machine body, a bearing plate is fixedly connected to the outer side of the supporting frame, a fixing plate is fixedly connected to the bottom of the bearing plate, high-temperature-resistant foam is arranged at the bottom of the fixing plate, and a containing assembly is arranged at the top of the top plate. According to the device, the hydraulic cylinder, the heating plate, the heat conducting plate, the silk screen, the polyester screen, the high-temperature-resistant foam and the PE film on the surface are arranged in a matched mode, the fusion effect of the polyester screen, the silk screen and the PE film in a uniform heating state can be good, and the surface of the fusion plate of the polyester screen, the silk screen and the PE film is in a flat state through matching of the heat conducting plate and the high-temperature-resistant foam.

The invention of this utility model relates to the manufacture of fiber-reinforced polymer meshes made of non-metallic materials. It is used for masonry, brickwork, reinforcement of concrete structures, soil reinforcement, fences, It is used to extend the useful life of roads, etc. The purpose of this utility model is to create an FRP mesh with high consumer characteristics, physical and mechanical properties. At the same time, the objective is to ensure high axial tensile strength in both the longitudinal and transverse bars. The FRP mesh is made by connecting vertical and horizontal bars according to the principle of this utility model. The lattice part of the shell is made by connecting hardened rods and unhardened rods at right angles, and then meshing them together. It is formed by hardening, in which case the rod connection belongs to the formed longitudinal rod This is done by feeding a fiber bundle, which is then split into strands of uneven thickness. divided and oriented perpendicular to the longitudinal axis of the transverse rod and opposite its radial surface This covers the side area, forming a cavity between the straight portion of the vertical rod and the surface of the horizontal rod. (Figure 6, Table 2)

The invention relates to the field of geogrids, in particular to a punching type geogrid and a machining device thereof.The punching type geogrid comprises a plurality of parallel fiber bundles arranged at intervals, and the multiple fiber bundles are wrapped between plastic layers; the long-strip-shaped holes are formed in the plastic layer between every two adjacent fiber bundles, the fiber bundles can be wrapped in the plastic layers, the tensile strength is improved, meanwhile, the connection strength between the fiber bundles and the plastic layers is guaranteed, and dislocation is reduced. The punching type geogrid machining device comprises a rack, and a winding drum is rotationally arranged at the front end of the rack; a guide mechanism is arranged on the rack close to the winding drum; a cutting mechanism is arranged on one side of the guide mechanism away from the reel; a hot melting area and a stamping area are sequentially arranged on the rack from front to back; a conveying mechanism and a dislocation mechanism are further arranged on the machine frame. The automatic production degree of the punching type geogrid is improved, the labor amount of workers is reduced, and the production efficiency is improved.

The present application discloses a method for preparing a shielding net, which comprises taking bisphenol A epoxy resin as a casting base material, adding a curing agent and a filler, injecting the casting material into an APG mold, and sequentially subjecting the casting material to a heating molding process, a curing process, and a zinc spraying process. The prepared shielding net has excellent insulation performance and greatly improves the shielding effect of the shielding net. The zinc layer is adapted to the shape of the shielding net module and can completely cover the surface of the shielding net module. The prepared shielding net has good shape and size controllability, and the deformation of the shielding net is small, which can meet the use size and shape requirements of solid insulation ring network cabinet components. The shielding net is cast into a solid insulation part, and then the solid insulation part is installed in the solid insulation cabinet, which solves the problem of poor insulation and reliability of the solid insulation ring network cabinet caused by shrinkage of the shielding net and poor insulation, and can ensure the long-term safe and stable operation of the solid insulation ring network cabinet.

A net including a plurality of transverse bands, intersecting a plurality of longitudinal bands, the plurality of longitudinal bands each comprising two intermittently adhered films forming channels at discontinuities of adhesion between the films, and wherein at least one intersection of the longitudinal and transverse bands at least one transverse band is threaded through at least one of the channels of at least one longitudinal band.

The invention discloses a manufacturing method of a screen. The manufacturing method comprises the steps of cutting, fixing, ultrasonic cleaning, plasma activation, coating spraying, air drying, heating curing and cooling. The passing rate of the screen is increased, the strength and the wear resistance of the screen are enhanced, the loss of the screen is reduced, and the service life of the screen is prolonged.

The present invention provides a process for preparing a non-destructive grille from waste tires, which relates to the technical field of solid waste treatment. Aiming at the problem that the existing grilles produced using waste tires have insufficient strength at the connection positions of intersections, the waste tires are cut to obtain tire strips, which are arranged in a manner where warps and wefts intersect, and fasteners are provided at the intersections for fixation. The fasteners are locked in position by ultrasonic welding, and connecting pieces are used to compensate for dimensional changes during the welding process, thereby ensuring the fit and locking ability of the fasteners to the intersections of the tire strips, and thus ensuring the strength and performance of the formed grille.

A body made from a plurality of extruded polymer filaments randomly oriented and interconnected to form a three-dimensional mesh structure. The body is elongated in an extrusion or longitudinal direction. First zones of the extruded polymer filaments have a first density and second zones of the extruded polymer filaments have a second density less than the first density. The first and second zones are separated by boundaries or transition regions. A method of making a seat cushion with extruded polymer filaments having different zones with different densities and hardness characteristics by controlling the speed of a plurality of tug belts in a cooling bath.

The invention discloses a shaping device with a built-in fixing structure for papermaking mesh production, and relates to the technical field of papermaking mesh production, the shaping device comprises a shell, the inner side of the shell is fixedly connected with a partition plate, the left side of the shell is provided with a wire inlet and a wire outlet, and the left side of the partition plate is fixedly connected with a mounting plate; first electric push rods are fixedly connected to the upper side and the lower side of the mounting plate correspondingly, tension rollers are arranged at the outer ends of the first electric push rods, a locking unit is arranged on the inner side of the shell, a rotating rod is rotationally connected to the inner side of the shell, and a shaping cylinder is fixedly connected to the middle of the rotating rod. According to the shaping device with the built-in fixing structure for papermaking mesh production, the shaping cylinder, a wire inlet and a wire outlet are arranged, a mesh body is conveniently shaped, a plurality of limiting rollers are controlled through a second electric push rod to lock the broken mesh body, meanwhile, a plurality of locking rods and friction blocks are controlled to make contact with a limiting disc, the shaping cylinder stops rotating, and the mesh body is prevented from being broken. The net body is prevented from being damaged.

The present disclosure provides composite materials comprising nettings, mattings or meshes thermally bonded to outer layers of nonwoven fibers that may be configured for use in a variety of applications and products. A composite material comprises a first layer of netting comprising intersecting strands and a second layer in contact with the first layer. The second layer comprises first and second fiber components. The first fiber components have a melting point at least 20 degrees higher than the melting point of the netting. The second fiber components have a melting point within 20 degrees Celsius of the fibers in the netting layer. This allows the second fiber components to thermally bond with the netting at contact points upon the application of heat and pressure. The first fiber components do not substantially thermally bond to the netting and thus form an outer layer, such as a sock, that protects the netting layer.

The utility model belongs to the technical field of geonet pad manufacturing, and particularly relates to one-time forming equipment for a three-dimensional geonet pad. The one-time forming equipment for the three-dimensional geonet pad comprises an extruder and a die head connected with the end part of the extruder, and is characterized in that an unwinding roller is arranged below the extruder, a slidable spinneret plate is connected below the die head, a plurality of uniformly arranged spinneret orifices are formed in the spinneret plate, a cooling water tank is arranged behind the unwinding roller, and a drawing roller is arranged behind the cooling water tank. The beneficial effects of the utility model are that one-step molding can be realized, the cost is effectively saved, and the material waste is avoided; by means of melt bonding, the problem of heating weld penetration caused in the prior art is avoided; and the flat screen does not need to be heated, so that the energy consumption is reduced.

The application relates to a filter screen and a preparation method and application thereof, and belongs to the technical field of filtering equipment. The filter screen comprises a hydrophobic reinforcing layer, a pre-filtering layer and a core filtering layer which are sequentially stacked; the hydrophobic reinforcing layer is composed of metal fibers; the pre-filtering layer is composed of basalt fibers; and the core filtering layer is composed of polytetrafluoroethylene fibers and polyether ether ketone fibers. The filter screen can stably work in a high-temperature environment, has excellent hydrophobic performance, high filtering efficiency and controllable manufacturing cost through the design of the structure of the filter screen.

A tensioning apparatus (200) is configured to apply a tension to elongate metal elements (20) which are supplied to a weaving machine (10) for manufacturing metal nettings (12) for geotechnical protection. The tensioning apparatus (200) comprises a tensioning device (228) having a group of drums (230), about which one or more coils of the elongate metal elements (20) to be placed under tension are wound. There are provided tensioning members (250) which keep the coils in contact with the drums (230) in such a manner as to adjust the friction between the elongate metal elements (20) and the drums (230) themselves so as to generate an opposing force counter to the pulling action which is applied by the weaving machine (10) and which tends to unwind the elongate metal elements (20) from the drums (230) of the tensioning device (228).

An assembly and method of manufacture. The assembly comprises a first mesh member, a second mesh member, and an adhesive. The first and second mesh members comprise first and second sets of filaments of polymeric material, respectively. The adhesive is adhered to the first mesh member and the second mesh member.

A yarn structure (14) is provided for use in a camouflage net. It comprises first (3), second (4) and third (5) yarn elements comprising, respectively, polymer, metal and carbon- or graphene-based material. The yarn elements are combined to form the yarn structure. The second yarn element (4) is present in an amount sufficient to provide radar scattering capabilities. The third yarn element (5) is present in an amount sufficient to reduce radar reflectivity of the yarn structure, compared to a yarn structure without the third yarn element.

The application relates to an automatic yarn winding system for glass steel moulded grid forming and a yarn winding process thereof, which comprises a forming mould, yarn winding systems for laying yarns in a grid forming cavity of the forming mould, a glue injection system for pouring resin in the grid forming cavity of the forming mould, and a yarn pressing system for compacting the resin and the yarns in the grid forming cavity of the forming mould and exhausting bubbles, the yarn winding system has two yarn winding systems in total, and the yarns in multiple layers distributed in the upper and lower positions of the grid forming cavity of the same forming mould are laid through the cooperative action of the two yarn winding systems. The application has the advantages that the two yarn winding systems are designed, and the yarns in the grid forming cavity of the same forming mould are laid through the cooperative action of the two yarn winding systems, so that the yarn winding time can be greatly reduced, and the work efficiency can be effectively improved.

A tensioning apparatus (200) is configured to apply tension to an elongated metal element (20) that is supplied to a knitting machine (10) for manufacturing a metal mesh (12) for geotechnical protection. The tensioning apparatus (200) comprises a tensioning device (228) having a set of drums (230) around which one or more coils of an elongated metal element to be placed in a tensioned state are wound. A tensioning member (250) is provided which holds the coil in contact with the drum (230) in such a way that the friction between the elongated metal element (20) and the drum (230) itself is adjusted to create a reaction force opposite the pulling action exerted by the knitting machine (10) which tends to unwind the elongated metal element (20) from the drum (230) of the tensioning device (228).

The present invention provides an anti-peeling geogrid and a processing method thereof, comprising a grid body and a docking plate for connecting adjacent grid bodies, wherein the grid body has a plurality of mesh holes arranged in a grid pattern inside, a card seal strip is fixed to the top surface of one side of the grid body, and two card seal strips are arranged in a mirror image about the vertical center line of the grid body, a first sealing plate is fixed to the side wall of the grid body, and the bottom surface of the first sealing plate is arranged flush with the bottom surface of the grid body; S1, compression molding; S2, conveying and splicing; S2.1, grid body docking; S2.2, pressing and punching; S2.3, docking plate plugging; S3, rolling and packaging. The present invention arranges the first sealing plate, the second sealing plate and the card seal strip structure on the grid body, so that during the production process, the docking plate can be pre-matched and inserted between the two grid bodies, so that the two grid bodies are connected as one body, and the first sealing plate and the second sealing plate are docked together, and then it is convenient to continuously roll up multiple grid bodies together.

The invention discloses a winding and dipping forming method of an ultrathin carbon-carbon screen blank, which is characterized by comprising the following steps: selecting a reinforcement fiber material and a matrix material; determining a winding system; based on the selected reinforcement fiber material and the selected matrix material, a composite material body is prepared through a winding tool by adopting a fiber wet-method winding process; performing first high-temperature treatment on the composite material body to obtain a porous preform; performing asphalt impregnation on the porous preform; and after the asphalt impregnation is completed, carrying out second high-temperature treatment to obtain an ultrathin carbon-carbon screen blank. According to the method disclosed by the invention, through two high-temperature treatment processes and an asphalt impregnation process, the prepared green body has a relatively low percentage of close area, the subsequent CVD (Chemical Vapor Deposition) carbonization process is facilitated, and the ultrathin carbon-carbon screen with qualified density is finally obtained.