169results 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.

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 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).

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 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 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.

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 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.

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).

Embodiments relate to a method for manufacturing a screen fabric to be installed in a golf simulator, the method including: a step of manufacturing a fabric body having a predetermined area by processing a biodegradable resin (poly(lactic acid) (PLA)) into yarn and weaving the yarn; and a coating step of applying a coating solution to at least one of both surfaces of the fabric body to form a coating layer, wherein at least one gap exposing the fabric body is formed in the coating layer.

Screening media to screen oversized material having a main body and a plurality of openings extending through the main body between an upward facing contact face and a downward facing bottom face. A textured pattern is provided at the contact face to provide a roughened surface for the partial entrapment of material fines. Such a configuration protects the screen media from aggressive contact with the material to be screened and provides a bedding layer that is maintained by material-on-material attrition during bulk material flow over the media.

To provide a body for a seat assembly and a method for a seat pad.SOLUTION: A body is composed of a plurality of extruded polymer filaments randomly oriented and bonded together to form a three-dimensional mesh structure. The body is elongated in an extrusion, or longitudinal, direction. First zones of the extruded polymer filaments having a first density and second zones of the extruded polymer filaments having a second density less than the first density. The first and second zones are separated by boundaries, or transition areas. There is provided a method of making a seat pad with extruded polymer filaments having different zones with different densities and hardness characteristics by controlling speed of a plurality of tractor belts in a cooling bath.SELECTED DRAWING: Figure 2

The present invention provides a filter mesh manufacturing device, belonging to the technical field of filter mesh manufacturing. The device comprises a conveying component for conveying fluid, a first cooling component, a mesh forming component, a pace control component, and a second cooling component. The conveying component conveys the fluid to the first cooling component for cooling to a set temperature. The mesh forming component has a transition chamber within it, which is a strip-shaped rectangular cavity. The cooled fluid in the first cooling component flows into the transition chamber of the mesh forming component. The conveying component is connected to the pace control component so that the mesh forming component punches the cooling fluid flowing through the transition chamber once every rated time. The second cooling component is connected to the transition chamber so that the filter mesh formed after punching is finally cooled and hardened in the second cooling component. The present invention achieves high efficiency in manufacturing filter mesh, reduces the number of process steps, and makes costs more manageable.

The utility model relates to an automatic demolding platform for a sieve plate. The automatic demolding platform comprises a rack, a worktable mounted on the rack and an ejection mechanism for demolding the sieve plate, the workbench comprises a bottom plate and a forming frame fixed to the upper surface of the bottom plate, and the forming frame and the bottom plate are matched to form at least one die cavity station used for forming the sieve plate. And the ejection mechanism comprises an ejection rod which penetrates through the bottom plate and can move up and down to eject the sieve plate formed in the forming cavity, and a driving piece for driving the ejection rod to move up and down. Through the sieve plate demoulding device, the sieve plate can be demoulded conveniently, the working efficiency of sieve plate production is improved, manual demoulding is not needed, and the stability of product quality is ensured.

This invention provides a flexible metal mesh composite self-lubricating material and its preparation method, belonging to the field of functional composite materials. The invention involves preparing a perforated metal skeleton by punching holes in a multi-layer composite metal plate using a perforation machine, then preparing modified PTFE by blending PTFE and functional modified fillers, and finally incorporating it into the perforated metal skeleton. The flexible metal mesh composite self-lubricating material is then prepared through drying, sintering, and rolling processes. This material can be used in textile machinery, joint bearings, automotive door hinges, and other fields, solving the problems of poor corrosion resistance, easy lubricant dissipation or uneven distribution, and the inability to simultaneously achieve material strength and lubrication performance in traditional metal-based self-lubricating materials. The self-lubricating material of this invention combines high strength, excellent corrosion resistance, and long-lasting self-lubricating properties, exhibiting a sandwich-like flexible composite structure with a three-dimensional interpenetrating microstructure, demonstrating significant application potential in high-performance engineering applications.

The grating structure comprises a base and a mold body arranged on the base and connected with the base, and grating holes are formed in the mold body; the grating structure further comprises grating columns, the section shape of the grating columns is matched with the grating holes, and the grating columns are inserted into the grating holes. And the base and the die body are locked through a connecting piece. According to the utility model, the defects in the prior art that the production loss is larger, and products with complex molded surface structures are more difficult to process are overcome; and by directly forming the grid structure, the production loss is effectively reduced, and more types of surface structures can be dealt with.

The invention relates to a multidirectional stretching three-dimensional drainage net and a forming and manufacturing process thereof, and belongs to the technical field of drainage permeation protection. The drainage net comprises a supporting net and supporting columns, the supporting columns are perpendicular to the supporting net, and the top ends of the supporting columns are connected to the intersection points of the supporting net. The molding and manufacturing process comprises the following steps: mixing the thermoplastic plastic with the color master batch, the nucleating agent and the anti-ultraviolet agent by an automatic mixing machine, and then conveying the mixture to an extruder for extrusion and plasticization; the materials are conveyed to a forming machine through a metering pump and are subjected to dynamic sealing blade coating through a transition plate and a rotary roller, and a hollow three-dimensional plate is formed; and sequentially carrying out longitudinal stretching and transverse stretching on the hollow three-dimensional plate to obtain a bidirectional, three-directional or multi-directional stretching product. By arranging the supporting columns and the multi-direction stretching supporting net structure, the drainage capacity is enhanced, and after plastic is subjected to two-way stretching, the plastic is higher in strength, lighter in gram weight and better in bearing capacity.

This invention relates to the field of vascular stent fabrication technology, and discloses a method for fabricating a stent with electrodes, comprising the following steps: providing a planar stent precursor with thermally responsive deformation characteristics; forming a conductive layer on the surface of the planar precursor, and patterning the conductive layer to form at least one electrode unit and at least one conductive wire unit electrically connected to the electrode unit; forming a non-conductive material layer on at least a portion of the surface of the conductive layer; placing the planar precursor under constraint and heating it to a molding temperature below 300°C to soften the planar precursor, cause a shape memory phase transition or crystal structure transformation, and shape it into a stent structure using a mold; wherein, the non-conductive material layer maintains structural integrity and insulation properties at the molding temperature, the non-conductive material layer has windows for exposing the electrode unit, and the non-conductive material layer covers the conductive wire unit, thus avoiding thermal damage to the non-conductive material layer caused by high-temperature processes.