668 results about "Wire brush" patented technology

The invention discloses a derusting and polishing device for the outer surface of a steel pipe. The device comprises a rack part (1), a polishing part (2), a polisher locking mechanism (3), a rack locking mechanism (4), a guide rail part (5) and a reciprocating mechanism (6); a high-speed motor drives a steel wire brush to rotate for polishing and derusting the outer surface of the steel pipe, and the reciprocating mechanism (6) drives the polishing part (2) to rotate around a shaft of the steel pipe in a reciprocating manner to achieve the purposes of derusting and polishing the outer surface of the whole circumference of the cylindrical steel pipe; the device is suitable for steel pipes with different diameters due to the adjustable structure; the device is convenient and quick to mount and dismount due to the arrangement of the polisher locking mechanism (3) and the rack locking mechanism (4). The device can be applied to derusting and polishing of the outer surfaces of cylindrical metal guard railings and suspended metal pipelines in public places.

The invention discloses a square tube multiple face synchronous derusting machine. The derusting machine comprises an inverted-U-shaped rack and is characterized in that an upper motor is fixed to the middle of the upper wall of the inverted-U-shaped rack, and an upper horizontal rotating wire brush is fixed to the lower end of a shaft sleeve of a motor spindle, a fixed belt wheel at the upper end of the spindle is connected with driven shafts outside the left wall and the right wall of the inverted-U-shaped rack for transmission, and the middle of the driven shaft on the left and the middle of the driven shaft on the right are respectively meshed with a shaft end bevel gear of a transverse rotating shaft for transmission through a bevel gear; each transverse rotating shaft is provided with a transverse shaft sleeve connected with the transverse rotating shaft in a matched mode through a spline, and an upper perpendicular face rotating wire brush is fixed to the inner end of each transverse shaft sleeve; idler wheels are arranged at the bottom end of the inverted-U-shaped rack; synchronous rotation of the horizontal rotating wire brush and the perpendicular face rotating wire brushes is achieved through one motor, and thus the upper surface and the two side faces of a square tube can be polished and derusted synchronously. Thus, dust on the surface of the square tube can be cleared away fast with the derusting machine, energy is saved, labor efficiency can be improved, and the using effect of the square tube is improved.

The invention outlined in the disclosure is an adjustable wire brush tool for cleaning either the inside or the outside end of a copper pipe or fitting in preparation for soldering the parts together. The tool includes a hollow cylindrical section with a first wire brush on the interior surface of the section. Attached at one end of the cylindrical section is a slightly smaller cylindrical section sized to hold a second cylindrical twisted steel brush having a hexagonal shaft that extends from the smaller section, opposite the larger cylindrical section. The twisted steel brush and attached shaft can be moved to extend the twisted brush beyond the open end of the larger cylindrical section, for insertion into a fitting to clean the fitting interior surface by attaching a power drill to the shaft and rotating the twisted steel brush attached thereto. To clean the outside of a pipe, the twist brush is retracted into the smaller section and secured to that section with an engaging means. The pipe is inserted into the larger section, and the drill is activated to rotate the shaft and attached larger section to clean the pipe outer surface. The tool overcomes the need for separate tools to perform each task and requires but one drill to perform either task as needed. The tool is sized to handle a particular diameter of pipe and fitting, with sizes ranging from one quarter inch to several inches.

A technology for rolling the composite Cu-Al plate includes such steps as preheating the copper band and aluminium plate respectively at different temp for different time, acid washing of copper band, alkali washing of aluminium plate, brushing surface by steel wire brush, rolling by a pair of upper concave roller and lower convex roller, annealing in inertial gas, and straightening.

A cosmetic applicator assembly, which includes a polymeric brush and a twisted wire brush. Specifically, the polymeric brush comprises an elongated polymeric core and multiple polymeric tines protruding from the elongated polymeric core. The elongated polymeric core comprises a first polymeric material of a first tensile modulus, while at least some of the polymeric tines comprise a second polymeric material of a second tensile modulus that is smaller than the first tensile modulus. The twisted wire brush comprises a metal wire core and multiple bristles protruding from the metal wire core. The elongated polymeric core of the polymeric brush is complementarily engaged with at least a portion of the metal wire core of the twisted wire brush to form the cosmetic applicator assembly. The polymeric brush of the present invention is preferably formed by a bi-injection molding process.

The invention discloses a convenient and fast efficient steel pipe rust removal grinding machine. The convenient and fast efficient steel pipe rust removal grinding machine comprises a workbench, a motor fixing table, a rust removing device, a scrap iron clearing device and a protective cover. The rust removing device comprises a rust removing brush head and a rust removing roller. The rust removing brush head is connected with the bottom face of the motor fixing table through adjusting rods. The rust removing roller comprises a rust removing barrel body which is evenly provided with installing ports. Steel wire brushes are arranged in the installing ports and fixed through fastening pieces. The scrap iron clearing device comprises a chip removing funnel and a chip collecting device. The convenient and fast efficient steel pipe rust removal grinding machine is simple in structure and high in practicability; by improving the rust removing device, rust removal can be performed on the interior and the surface of a steel pipe at the same time, and operation can be more convenient and easier; due to design of a clamping jaw and a bracket, the steel pipe can be fixed more firmly; meanwhile, by adjusting the clamping jaw and the bracket, rust removal can be performed on steel pipes of different pipe diameters, the using range of the steel pipe rust removal grinding machine is further widened, and comprehensive utilizing efficiency is improved.

A bond of a rubbery component to a virgin surface of a tire's cured innerliner which virgin surface has never been contaminated by the remnants of a release agent left after buffing with a wire brush and solvent-cleaning the cured innerliner, is unexpectedly stronger than a bond of the component to the contaminated but “cleaned surface”, cleaned as indicated. As an alternative, buffing with a wire brush results in a textured surface that impairs adhesion of a balance pad. Therefore, a pneumatic tire is provided with a virgin surface protected against contamination by a release agent at the curing temperature of the tire; protection is provided by a self-supporting barrier film of sulfur non-vulcanizable, expandable, thermoformable synthetic resinous material; and, a method is provided for maintaining a virgin cured surface within all or part of either the exterior or interior of a pneumatic tire's rubber carcass which is conventionally cured. The barrier film which is substantially inextensible at ambient temperature, is removable without tearing into pieces from the protected surface of the cured tire. When the interior surface is provided by an innerliner, any component to be included within the interior of the carcass may be adhesively secured to the virgin surface of the innerliner more securely than has been heretofore possible.

The invention relates to a rotary washing blockage relieving pipe cleaning device which comprises a main cylinder body, an assistant cylinder body, a pressure control valve and a rotary washing mechanism, as well as a scraping plate and a leather cup mounted on a main shaft of the pipe cleaning device, wherein the assistant cylinder body is fixed at the front end of the main cylinder body; the pressure control valve is fixedly arranged in an inner chamber at the rear part of the main cylinder body; the rotary washing mechanism is mounted on the assistant cylinder body; the pressure control valve is fixed on the inner wall of the main cylinder body through a supporting plate; the supporting plate adopts a hollow structure; the rotary washing mechanism comprises a rotary washing spray head and a wire brush mechanism; rotating nozzles and horizontal nozzles are arranged on the outer wall of the rotary washing spray head; the inner wall of the rotary washing spray head is connected with a turbine group through a power shaft; the turbine group is mounted in an inner chamber of the assistant cylinder body; the wire brush mechanism consists of a crank sliding block mechanism and wire brush heads. The failure of pipeline blocking caused by hard dirt and more sewage can be effectively removed, and the pipe cleaning device reduces energy consumption, and is economical and practical.

The invention belongs to the technical field of shield tunnel engineering and particularly relates to a shield tunnel portal sealing device and a shield tunnel portal sealing method. The shield tunnel portal sealing device comprises a lined wall, an embedded steel ring is arranged on the lined wall, a sealing box is arranged on the embedded steel ring and comprises a sealing steel ring, a fixing plate, a fold type support plate and two waterproof structures, a plurality of grease injecting holes are evenly circumferentially reserved in the sealing steel ring between the two waterproof structures, each waterproof structure comprises a steel wire brush and a cord fabric rubber plate, the cord fabric rubber plates are arranged on one side close to the embedded steel ring, and grouting holes are reserved in the lined wall and in the sealing steel ring on the inner sides of the cord fabric rubber plates. The shield tunnel portal sealing device has the advantages that the cord fabric rubber plates are primarily used for sealing to prevent a major part of water and soil from pouring out, so that 'pouring prevention' is achieved; water penetration is prevented as the steel wire brushes secondarily achieve seamless contact with a shield tunneling machine shell or duct pieces; and the grouting holes reserved in the lined wall and the sealing steel ring can achieve grouting sealing timely in emergencies.

A cylindrical member maintenance device is comprised of a housing (10) comprised of two hinged halves (11, 12) for being closed around a cylindrical member (13), such as a stranded steel cable. A rotary helical brush assembly (21) and a rotary longitudinal brush assembly (22) are positioned in the housing and rotatable about an axis of the housing. Each rotary brush assembly is comprised of coaxial split rings (23, 26) with rotary cylindrical wire brushes (25, 28) connected in between and which are independently rotatable about their own axes. Nozzles (29) are positioned on the inside of the housing for applying a cleaning fluid or paint to the cylindrical member. Apertures (32) in the housing are for connecting to a suction device for removing debris, cleaning fluid, and paint to avoid contaminating the environment. Loops (18) on the housing are for attaching to cables for moving the housing along the cylindrical member.

A kind of drill sample method to detect the impermeability of solid concrete structure, using the drill sample method to get the concrete cylinder in the detected solid concrete structure; cuts the concrete cylinder into cylinder core board; puts the cylinder core board in the center of the cylinder test module; pulls the grouting material in the space between the cylinder test module and the cylinder core board to mold; uses the steel wire brush brush away the grout film in the end after demoulding, then doing standard maintain to it; takes six cylinder impermeability piece as a group, besmears a flat of melt airproof material in their side face, and then push down to the sample cover which has been preheat by the oven, test them at the impermeability instrument; the water pressure of the test begin at 0.1 megapascal, observe the water penetration situation of the cylinder impermeability piece end at any moment, when three of the six cylinder impermeability piece water penetrates, stopping the test, record the water pressure value of the time, calculates the impermeability grade according to the formula. It can really reflect the impermeability of solid concrete.

An apparatus, a system and a method are provided for monitoring position of a machine element within a mechanical system and/or cleaning a machine element. A light source and sensor may be positioned within a cylinder. The sensor may detect the intensity of light within the cylinder as a shaft element moves laterally throughout the cylinder. The measurement may indicate the position of the shaft element within the cylinder. In addition, a seal, a wire brush and/or a bronze brush may be placed near an end wall of a cylinder. The seal may surround the shaft element. Furthermore, the shaft element may be coated with a compound, such as a nitrile compound or a ceramic compound or the like. The wire brush and bronze brush may be in contact with the shaft element and may scrape any contaminants, such as weld spatter, which may be deposited on the shaft element.

The invention discloses a slurry shield starting tunnel portal sealing structure and a construction method thereof. The sealing structure comprises two streaks of steel wire brushes, two streaks of cord fabric rubber plates and sealing slurry poured in three sealing cavities formed among the two streaks of steel wire brushes, the two streaks of cord fabric rubber plates and a shield tunneling machine and used for sealing a tunnel portal. The construction method comprises the steps of first, tunnel portal steel ring mounting, second, mounting of the first streak of steel wire brushes and the second streak of steel wire brushes, third, first extending steel ring mounting, fourth, mounting of the first steak of cord fabric rubber plates and a second extending steel ring, fifth, mounting of the second steak of cord fabric rubber plates and a fixing steel ring, sixth, cord fabric pressing plate assembly mounting, and seventh, contacting of the shield tunneling machine and the tunnel face, and sealing slurry pouring. The sealing effect can be improved greatly, the situation that slurry overflows when a shield tunneling machine starting slurry bin is built can be avoided effectively, the phenomenon that the slurry overflows, so that a soil body is unstable is avoided, the safety of slurry shield starting is guaranteed, and the construction method is simple in step, reasonable in design and short in construction period.

The invention relates to a new type of power line deicer, which includes a box body and a bracket. There are left and right wire holes on the left and right sides of the box body. The left end of the bracket is equipped with a first wheel set and the first motor. Two wheels and the second motor, the center of the top wall of the box is equipped with an upper telescopic rod, an upper pressing block and an upper wire brush, and the center of the bottom wall of the box is equipped with a lower telescopic rod, a lower pressing block and a lower wire brush, and the upper and lower telescopic There are upper and lower coil springs on the outside of the rod. There are upper and lower pressure block through holes on the upper and lower pressure blocks. There are upper and lower electric heating tubes embedded inside. The top of the upper pressure block is equipped with an upper fan. There is a lower fan, the vertical side wall of the box includes inner and outer layers, the upper part of the inner layer and the lower part of the outer body are distributed with inner and outer ventilation holes, and the inside of the box is equipped with a temperature sensor, a microcontroller and a wireless transmitter , By adopting the above structure, the present invention can quickly and thoroughly perform deicing operation, and also effectively avoid damage to the circuit.

The invention relates to a cleaning machine used for washing external wall of pipes, which pertains to the special equipment of industrial production and is suitable for cleaning the external wall of the petroleum chemical pipeline, removing scale, rust and the vitiated old anticorrosion coating, and spaying. The invention mainly consists of a frame, a driving wheel, protective strips, working parts, lateral wheels, sliders, a radial wheel wire rope, a wire rope driving wheel, a wire rope driven wheel, a driven wheel, a governor and counterweight. The working parts comprise a hydraulic water nozzle, an impactor, a wire brush, a polishing wheel and a paint gun. The invention is characterized in that the cleaning machine which is used for washing external wall of pipes can walk on the pipes and work continuously with high efficiency. A plurality of cleaning ways can be combined for use or a single cleaning way can be used. The invention has good washing effect.

The invention discloses an abrasive wire brush and a production method thereof. The wire brush comprises three components, namely a base material, a plastic additive and a grinding material, wherein the base material refers to a nylon material. The method for producing the abrasive wire brush comprises the following fifteen steps: selecting the materials, proportioning and mixing the materials, selecting a mold, selecting a wire brush twin-screw extruder, performing mixing extrusion in the twin-screw extruder, cooling in a cold water tank, drawing in a drawing machine, performing secondary drawing, performing third drawing and wire brushing, changing straight wire brushing into curved wire brushing, setting the wire brush in a drying box, rolling, recovering, performing jet coding, weighing, boxing and the like. The wire brush disclosed by the invention has extremely high safety, long service life and stable quality, the production process is easy to control, and the machining precision is high.

A cleaning kit operable by a tool for cleaning pipes and fittings to prepare same for soldering. The cleaning kit includes a plurality of sockets including wire bristles attached thereto and for receiving the outer surface of a pipe therealong. The plurality of pipes are maintain in continuous contact with a pipe surface for cleaning same while a tool rotatably engages the plurality of sockets about the pipe. The cleaning kit also includes a shank for receiving the plurality of sockets therein and for removably connecting to a tool respectively. A wire brush including a lower end portion and a second shank connected thereto is removably attachable to a tool so that the wire brush can rotatably engage an interior of a pipe and thereby clean same.

The invention discloses steel bar grinding and descaling equipment for building construction. The equipment comprises a descaling box; the descaling box is internally provided with a descaling cavitywhich is through left and right; the descaling cavity is internally provided with a descaling device for conveying steel bars and preliminarily descaling the steel bars; the descaling cavity is internally provided with a grinding device located on the right side of the descaling device; the descaling cavity is internally provided with a spraying device located on the right side of the grinding device; and the end surface of the upper side of the descaling cavity is provided with a mixing device located on the upper side of the spraying device. The conveying device and the descaling device canautomatically adapt to the steel bars of different diameters through a telescopic mechanism, steel wire brushes are adopted by the descaling device for rapidly and preliminarily descaling the steel bars, the steel bars are further ground and descaled through a grinding wheel mechanism, thus, the descaling uniformity and descaling quality can be improved, and descaling liquid is sprayed to the descaled steel bars through the spraying device, so that the equipment has good descaling quality and can descale the steel bars.

The invention relates to a spiral-spring wire brush type tube cleaner. The spiral-spring wire brush type tube cleaner consists of springs I, spiral-spring wire brushes, a spring leather bowl seat I, leather bowls I, springs II, a spring leather bowl seat II and leather bowls II and is characterized in that the spiral-spring wire brushes are mounted at the outer edges of the springs I, the spring leather bowl seat I is mounted at one end of the springs I, the leather bowls I are mounted on the spring leather bowl seat I, one end of the springs II is connected with the spring leather bowl seat I, the other end of the springs II is connected with the spring leather bowl seat II, and the leather bowls II are mounted on the spring leather bowl seat II. According to the tube cleaner provided by the invention, the design is ingenious, the structure is simple, and the tube cleaner is impelled in a tube in a spiral rotation manner during tube cleaning operation; the tube cleaner has the advantages that the effect of cleaning dirt from the wall of the tube is good, the wear to the leather bowls is little and uniform, and the tube cleaner easily passes through elbows.

A cylindrical member maintenance device is comprised of a housing comprised of two hinged halves for being closed around a cylindrical member, such as a stranded steel cable. A rotary helical brush assembly and a rotary longitudinal brush assembly are positioned in the housing and rotatable about an axis of the housing. Each rotary brush assembly is comprised of coaxial split rings with rotary cylindrical wire brushes connected in between and which are independently rotatable about their own axes. Nozzles are positioned on the inside of the housing for applying a cleaning fluid or paint to the cylindrical member. Apertures in the housing are for connecting to a suction device for removing debris, cleaning fluid, and paint to avoid contaminating the environment. Loops on the housing are for attaching to cables for moving the housing along the cylindrical member.

The invention discloses a method for continuously reducing, rolling and compositing stainless steel/plain steel composite plate and a device thereof. The method comprises the following steps of: cleaning the surface of a stainless steel plate strip; heating and dephosphorizing a plain steel plate blank; reducing an oxidized iron sheet on the surface of the plain steel plate blank; heating the stainless steel plate strip; rolling and laminating; and cooling. The device used for the method comprises: a steel billet inlet guide roller, a steel billet inlet sealing guide mouth, a front-section heat-insulation reduction furnace, a steel billet running roller way, a sealing water tank, a steel wire brush, a stainless steel plate strip uncoiling machine, a stainless steel plate strip inlet sealing guide mouth, a stainless steel plate strip inlet guide roller, a middle-section reducing-atmosphere heating furnace, a heater, a heat-insulating layer, a stainless steel plate strip running roller way, a guide roller, a rolling mill inlet guide roller, a rolling mill inlet sealing guide and guard, a roughing mill, a protective gas inlet pipeline, a heat-insulating furnace between frames, a finishing mill and a protective gas water-cooling tank body. With the adoption of the method and the device, stainless steel composite plate blanks and plate strip materials can be continuously produced.

The invention discloses a manufacturing process of a brush type steam seal of a steam turbine. In the process, a layer of adhesive is evenly coated on each layer of metal wires when the brush wire bundle is wound, and each layer of metal wires is bonded to each other by the adhesive. As a whole, when the wound brush filament bundle is cut into brush filament clusters, the metal wires are still bonded together, so that when the inner hole diameter of the brush seal ring is processed, the excess length of the brush filament clusters can be processed in rows. When cutting, it is very convenient to operate, and can ensure the uniform length of the brush filaments, so that the brush filaments are arranged neatly and will not bend, so that the sealing effect of the brush-type steam seal can be effectively improved, thereby improving The efficiency of the steam turbine.

The invention discloses a mechanical gear machining device which comprises an installation plate, a supporting plate, a horizontal air cylinder, a clamping groove, a brush, a supporting column, a fixing nut, a clamping seat, limiting blocks, a sliding groove, a connection block, a vertical air cylinder, sliding rails, a sliding table, a guide rail, a sliding seat, a rotary table, a fixed column, a tool, a motor, an adjusting column, an installation block and an operation handle. The mechanical gear machining device has the beneficial effects that gear chamfering, tooth crest chamfering and the like can be conducted in a multi-angle mode; the sliding table can slide on the sliding rails under the traction of the horizontal air cylinder, and the tool can conduct multi-face machining on a gear conveniently during machining; the two rubber limiting blocks are fixed to the side edges, close to the supporting plate, of the sliding table, so that the sliding table is prevented from knocking into the supporting plate during movement; the brush is a wire brush and can be detached freely from the interior of the clamping groove, and deburring treatment can be conducted on the gear through the wire brush; the position of the installation block can be adjusted up and down on the fixed column, and specific adjustment can be conducted on gears of different specifications.

A barbeque grill scraper that uses a scraping edge with a tooth formed of a wearable material to remove char and debris from the grill grates. The tooth fits between adjoining grill grates to guide the scraping edge and create a plurality of indents in the scraping edge that match the top profile of the grill grates. The grill grates are thus thoroughly cleaned without the health risks associated with wire brush cleaners. Another embodiment further utilizes a protruding cleaning tool to access and clean the lower sides and bottom of the grill grates.

Motor vehicle jumper cables comprising an integral wire brush mounted on an interior portion of the clamp assemblies is herein disclosed. The jumper cables with the wire brush are to be motioned to remove battery terminal corrosion, thereby providing for a better electrical connection. The device resembles a standard pair of jumper cables used to aid in jump-starting a motor vehicle with a dead battery and comprises a small wire brush located inside of each jaw area. The bristles are made of conductive steel or copper of a sufficient stiffness to clean any corrosion from the battery terminals as the clamps are being installed. Due to the conductive nature of the bristles, current will flow through the bristles as well as the clamp body, thus improving charging and starting ability.

The invention relates to an overlaying method, in particular to a method for preventing an overlaying sealing surface from cracking. The method includes the following steps that a direct current arc welding machine is selected as a welding device, the surface of a steel member is polished before overlaying, and no oil stain or water is left on the surface of the steel member; after overlaying of each layer is finished, an overlaying layer needs to be cleaned carefully through a wire brush; when welding is carried out, the steel member is connected with the negative electrode of a power source, and a welding stick is connected with the positive electrode of the power source; angle wrapping weld beads are arranged on the two sides of an overlaying transition layer; the surface of the transition layer is polished; overlaying of the sealing surface is carried out; the quality of the surface of the overlaying layer is detected according to a PT method, if cracks are found, the cracks are polished and removed through a grinding wheel, and then the welding stick of the sealing surface is used for repairing. The sealing surface materials are overlaid on the steel member, shielded metal arc welding is adopted, the welding stick of the A307 type is used as the transition layer, the sealing surface materials are overlaid on the transition layer, welding is carried out in a cold state without preheating, and welding cracks are avoided.

The invention provides a double-pressure submerged arc furnace waste heat boiler with a mechanical brush ash-removing device, wherein a boiler barrel is arranged on a support, a convection vertical shaft is arranged in the support, one end of the convection vertical shaft is provided with a smoke inlet, and the other end of the convection vertical shaft is provided with a smoke outlet. A sub-middle-pressure superheater, a sub-middle-pressure evaporator, a sub-middle-pressure economizer, a low-pressure superheater, a low-pressure evaporator and a low-pressure economizer which are fixedly arranged on a ventilation beam are arranged in sequence from the smoke inlet to the smoke outlet in the convection vertical shaft; the mechanical brush ash-removing device is arranged on each heating surface of the submerged arc furnace waste heat boiler device; an external transmission device is connected with an internal ash-removing device; the internal ash-removing device is provided with a frame-type brush fixing device; a steel wire brush with upper and lower ends being respectively and fixedly arranged on a frame is arranged on the fixing device; two groups of rollers are arranged at the bottom of the brush fixing device; each group of rollers is arranged on one guide rail; and two ends of the two guide rails are connected with the boiler ventilation beam and an inner protective plate. The double-pressure submerged arc furnace waste heat boiler with the mechanical brush ash-removing device is small in investment, convenient to reform, complete in ash removing and high in heat transfer efficiency.

The invention discloses a metal inert gas (MIG) welding method of an aluminum alloy thin plate for a high speed train. The method is characterized in that an ER5356 welding wire and 99.9% argon protective gas are selected to conduct single pass welding. The method includes the following steps: 1) surface machining of a workpiece to be welded; 2) MIG welding; 3) welding gap defect checking. The step 1) includes that the workpiece to be welded is not preheated, an organic solvent is directly adopted to remove grease dirt and dust on the surface of the workpiece to be welded, and a mechanical method is adopted to remove an oxidation film on the surface of the workpiece in a washing mode. The step 2) includes that weld heat input is controlled between 4.0KJ/cm and 5.0KJ/cm during MIG welding, and environment humidity is controlled to be smaller than or equal to 70%. The step 3) includes that pore defects of a welded workpiece are removed through a steel wire brush or an air chipper. The method has the advantage that thin plate aluminum alloy welding connector pore welding hot crack number can be greatly reduced, welding gap forming is good, welding deformation is small, welding connector strength is higher, the MIG welding quality of the aluminum alloy thin plate for the high speed train is effectively improved, and welding quality stability is ensured.

A bamboo fibrillating-rolling device comprises a frame, a fibrillating mechanism, a rolling mechanism, a hammering mechanism, a skin-removing mechanism, a conveying mechanism and a power unit. The frame is provided with areas for fibrillating, rolling, hammering and skin removing. The fibrillating mechanism at least comprises one fibrillating roller set consisting of an upper and lower opposing paired fibrillating rollers, wherein at least the upper fibrillating roller is provided with fluffing teeth. The rolling mechanism consists of one or paired rolling rollers. The hammering mechanism comprises a plurality of hammers. The skin-removing mechanism is provided with metal wire brush rolls or scrapers for skin removing. The conveying mechanism is used to convey material to be processed to transversely pass through the areas for fibrillating, rolling, hammering and skin removing. The power unit powers the fibrillating mechanism, the rolling mechanism, the hammering mechanism, the skin-removing mechanism and the conveying mechanism respectively or simultaneously. The bamboo fibrillating-rolling device is available for efficiently producing bamboo fiber bundles with low transvers strength and reserved longitudinal strength. The skin-removing mechanism, the rolling mechanism, the fibrillating mechanism and the hammering mechanism are all in modular design and can be designed into a complete set for assembly and disassembly.

A toothbrush with a head having at least one pair of twisted wire brushes secured to the head's top surface in a position that creates a narrow and substantially uniform trench between the bristles of opposing brushes. Head construction may be solid, curved, blunt, tapering, or have a forked distal end. When a user's brace hardware and/or orthodontic wires are placed within the trench, bristles adjacent to it reach tooth surfaces behind the orthodontic wires to gently remove plaque without wire or hardware breakage. The twisted wires of opposing conical brushes are not parallel so as to create a uniform trench. The twisted wires in narrow end of conical brushes are also angled toward the distal end of the toothbrush head to facilitate reaching crowded back teeth without orthodontic wire breakage. The toothbrush handle can be laterally angled relative to its head and brushes are optionally replaceable by the user.