52 results about "Oriented strand board" patented technology

A manufactured wood panel with integrated fire-resistant (FR) inorganic material, and methods of production. The manufactured wood panel may be structural or non-structural, and strand-based, such as, but not limited to, oriented strand board (OSB). Noncombustible FR inorganic material, including but not limited to, mineral wool, sand, rock, and the like, is added to and mixed with the wood strands before, during, and / or after the blending process on the production line (i.e., mat forming line). The mats formed from the mixed strands and inorganic material arc then subjected to heat and pressure in a press. The panel may have multiple strand layers, with all or only some of the strand layers comprising the noncombustible material. The percentage of noncombustible material may be the same in all mixed layers, or may vary between layers.

The utility model discloses an oriented strand board production board bundling device which comprises a base, a cabinet body is fixedly connected to the top of the base, two cabinet doors are rotatably connected to the interior of the cabinet body, handles are fixedly connected to the exteriors of the cabinet doors, a first base is fixedly connected to the top of the cabinet body, and a second base is fixedly connected to the top of the first base. The top of the first base is fixedly connected with a second base, and the exterior of the second base is fixedly connected with a first motor. By means of the structure, the first motor outside the second base is driven to be matched with the first driving rod to drive the external roller to rotate, so that the rope outside the roller is rotated, an operator binds one end of the rope and the fixed oriented strand board, and therefore binding operation can be completed at a high speed; compared with a manual bundling mode or other non-electric modes, the production efficiency is greatly improved, the production time of a single product is shortened, the rhythm of the whole production process is favorably improved, and the requirement of large-scale production is met.

The invention relates to a method and an apparatus for the process-optimized production of manufactured wood boards, in particular oriented strand boards. In order to provide a method and an apparatus for the process-optimized production of manufactured wood products which make it possible to optimize quality while providing continuous quality assurance, which allow the best possible control variables to be determined particularly easily and quickly, and which also guarantee continuous production that results in the lowest possible wastage while maintaining the highest possible level of process stability, the invention provides the following: at least one process parameter, in particular the water content and / or the quantity of adhesive applied to the raw chip material, is measured in the course of the method by means of near-infrared spectroscopy; the measured values of the at least one process parameter are then sent to a control unit for process optimization and / or process-optimized control of the method, wherein the measurement of the at least one process parameter is taken at one or more positions, selected from: a position immediately upstream of the gluing, in particular between a dry raw chip hopper and the gluing station; a position immediately downstream of the gluing, in particular between the gluing station and a chip material distributor and / or a dispersing station; a position in the provision phase immediately downstream of a timber yard, in particular between the timber yard and a subsequent dryer; and / or a position in the provision phase immediately downstream of a dryer, in particular between the dryer and a sieving station and / or a dry raw chip hopper.

A wood structural panel (such as oriented strand board, plywood, or other cellulosic panel) used for structural sheathing with one or more pre-applied weather resistant barriers or layers (WRBs) with integrated compression-resistant features. When installed, the integrated compression-resistant features provide an air space or channels the WRB layer and the exterior cladding. This allows drainage of rainwater or other moisture that otherwise become trapped between the cladding and WRB layer, thus providing extra protection for the structure. These features are applied at the factory during or immediately after the manufacturing of the structural sheathing panel with WRB layer, and thus are integrated therewith as part of the integrated finished product.

The invention provides a full-process preparation method for cutting and punching an OSB (oriented strand board) heat insulation board. Comprising the following steps: cutting and punching the OSB oriented structure insulation board; the fiber density, the glue content, the environment temperature and the humidity parameters of the OSB insulation board are collected through the sensing module; based on the parameters, the cutting speed, the punching pressure and the cutter feeding depth are dynamically adjusted through control logic operated by the micro-control unit; monitoring the state of the cutter in real time through a vibration sensor, and correcting parameters of the control logic according to a monitoring result; self-adaptive control over the whole cutting and punching process is achieved through a closed-loop feedback mechanism, and the closed-loop feedback mechanism comprises four sequentially-executed links including parameter collection, logic calculation, execution adjustment and state monitoring. The device can dynamically adapt to the whole cutting and punching process of plate characteristics and environmental changes.

A Rapid Assembly House Kit System for emergency shelter, temporary dwelling and permanent residence comprising: a plurality of lightweight pre-manufactured structural components, each structural component having pre-made coupling features, wherein the structural components include studs placed flange-to-flange with lips touching to create hollow columns and studs placed web-to web creating H-beams in cross section that sandwich a central wood strip; a plurality of pre-manufactured oriented strand board panels with adhered rigid insulation set for both interior and exterior use attaching to a structural framework; a set of bolts, washers and screws, wherein the pre-manufactured oriented strand board panels are coupled to the structural components through the pre-made coupling features with the bolts, washers and screws; and a set of modular components, including doors, windows, rafter connectors, and interior partition walls having coupling features that attach to the studs and tracks of the structural components.

The invention relates to a novel high-strength wear-resistant container floor which comprises a surface layer, at least one OSB (oriented strand board) layer, a bamboo-wood composite layer and a reinforced bottom layer, in the actual container floor processing process, the reinforcing bottom layer can be laid on the bottommost face, then the OSB oriented strand board layers are laid on the reinforcing bottom layer, and when the OSB oriented strand board layers are laid, the bamboo-wood composite layers are laid on the upper sides and the lower sides of the OSB oriented strand board layers and used for discharging moisture in the OSB oriented strand board layers, the strength is guaranteed, and the OSB oriented strand board layers are laid on the reinforcing bottom layer. And finally, the surface layer is laid on the uppermost bamboo-wood composite layer, and hot press forming is performed through a hot press after laying is completed, so that an existing container floor can be better replaced, and the production cost of the container floor is reduced while the strength is guaranteed.

This invention relates to the field of particleboard production equipment technology, specifically to a surface-oriented particleboard (SOC) laying device, comprising a laying roller, sliders, slide rails, and an adjustment assembly. The laying roller is rotatably connected to the sliders at both ends; the sliders are slidably connected to the slide rails; the slide rails are arc-shaped and centered on the midpoint of the laying roller's axis; the adjustment assembly connects to two sliders respectively, allowing the two sliders to move in opposite directions along their corresponding slide rails to adjust and fix the tilt angle of the laying roller. This invention can adapt to the high-precision continuous laying requirements of multi-specification particleboard.

This invention provides a bamboo shavings production line for bamboo oriented strand board (BOS), comprising: a feeding and conveying device for placing stacked bamboo chips; a transitional pressure clamping device, including a roller conveyor and a transitional pressure clamping assembly; a rotary shaving machine located at the discharge port of the transitional roller conveyor; a bamboo shavings flotation device, including an oil flotation tank, a flotation washing drum, a first scraper conveyor, and a first bamboo shavings collection belt conveyor; and a boiling device, including a hot water tank, a bamboo shavings pressing drum, a second scraper conveyor, and a second bamboo shavings collection belt conveyor. The advantages of this invention are: the transitional pressure clamping device clamps the stacked bamboo chips, the rotary shaving machine performs radial cutting on the bamboo, and the stacked bamboo chips are shaved into bamboo shavings by a ring cutter. The bamboo shavings are then screened in the bamboo shavings flotation device to separate qualified bamboo shavings and bamboo shavings. After boiling, steaming, and drying, the bamboo shavings meet the production requirements of BOS, resulting in high production efficiency.

The utility model relates to the technical field of artificial board discloses a kind of high-strength wear-resistant composite artificial board, including two combination boards, the outer wall bottom of combination board is fixedly connected with reinforcing glue, the outer wall top of reinforcing glue is fixedly connected with reinforcing mechanism, the outer wall of reinforcing glue is provided with wear-resistant mechanism, the reinforcing mechanism includes bamboo fibre layer, the outer wall bottom of bamboo fibre layer is fixedly connected in the outer wall top of reinforcing glue, the outer wall top of bamboo fibre layer is fixedly connected with shaving layer, the outer wall top of shaving layer is fixedly connected with resin layer, the outer wall top of resin layer is fixedly connected with polyurethane glue layer, the outer wall top of polyurethane glue layer is provided with fibre assembly.In the utility model, bottom layer bamboo fibre layer and oriented shaving board provide basic support, enhance the strength of core layer using high-performance fibre and composite material, each layer synergistic effect, through performance complementation and structure optimization, realize the high-strength demand of artificial board.

The invention relates to the technical field of oriented strand boards, and discloses a high-water-resistance fine-surface oriented strand board and a preparation method thereof.The high-water-resistance fine-surface oriented strand board comprises a core layer and surface layers arranged on the upper layer and the lower layer of the core layer, and the high-water-resistance fine-surface oriented strand board is prepared by conducting gluing, pavement forming, pre-pressing and hot pressing on surface layer wood shavings and core layer wood shavings in sequence; the surface layer wood shavings are fine wood shavings, and the core layer wood shavings are large wood shavings; according to the percentage accounting for the absolutely dry mass of the surface layer wood shavings, the step of sizing is to apply 8% of an isocyanate adhesive, 12-14% of a urea-formaldehyde resin adhesive and 3-5% of a silane coupling agent into the surface layer wood shavings; according to the percentage accounting for the absolutely dry mass of the core layer wood shavings, the step of sizing is to apply 3-5% of an isocyanate adhesive, 1-3% of a paraffin emulsion and 2-5% of a silane coupling agent into the core layer wood shavings. The FOSB with high water resistance and high bonding strength is prepared by applying the waterproof agent to the surface layer and the core layer and controlling the compounding proportion of the adhesive and the waterproof agent and the application amount of the adhesive and the waterproof agent in the surface layer and the core layer.

The utility model discloses an energy-saving and environment-friendly aluminum honeycomb core wood composite board, and relates to the technical field of wood composite boards. The energy-saving and environment-friendly aluminum honeycomb core wood composite board comprises an aluminum board, a plurality of groups of honeycomb holes are formed in the outer side of the aluminum board; the composition mechanism is arranged on the outer side of the aluminum plate and comprises oriented strand boards and wood grain boards, two sets of oriented strand boards are arranged on the outer side of the aluminum plate, and the wood grain boards are fixedly installed on the outer sides of one set of oriented strand boards; the installation mechanism is arranged on the outer side of the aluminum plate and located on the outer side of the composition mechanism. The inner sides of the two sets of oriented strand boards can be attached to the outer side of an aluminum plate, connecting rods and mounting cylinders are arranged in honeycomb holes, the connecting rods are arranged on the inner sides of the mounting cylinders, the relative positions of the two sets of oriented strand boards are fixed, wood grain boards and frosted boards are arranged in clamping grooves, and the positions of the wood grain boards and the frosted boards are limited; and the outer sides of the oriented strand board and the wood grain board are protected, and the situation that boards in the board are bonded through glue is reduced.

Chipboard with the addition of plasma-treated rubber consists of oriented wood chips (1) with a length of 80 to 150 mm, a width of 10 to 25 mm and a thickness of 0.5 to 0.75 mm, rubber granulate (2) treated by plasma in a proportion of 10 to 20% by weight with a fraction of 1 to 3 mm and an adhesive mixture, where the said OSB board is formed by hot pressing at a specific specific pressure, a specific temperature and a specific time.

A method for preparing flame-retardant surface-layer oriented strand board (OSB) based on interfacial penetration anchoring is provided, comprising: stirring long wood shavings and an acidic adhesive system composed of 1,6-hexanediamine aqueous solution, 2-hydroxyphosphonic acid-acetic acid aqueous solution, and diphenylmethane diisocyanate in a mixer under the condition of hot air flow; discharging the material when the pH value of the shaving surface reaches 4.0-6.0 to obtain pretreated surface-layer large shavings; mixing copolymer CS-H-H, wood fines, and diphenylmethane diisocyanate; discharging the material when the pH value of the wood fines reaches 7.7-8.5 to obtain pretreated core-layer fines; the reaction formula for preparing copolymer CS-H-H is as follows; laying the pretreated material in the order of surface-layer large shavings, core-layer fines, and surface-layer large shavings as the lower surface layer, core layer, and upper surface layer, and performing a hot-pressing process. This solves the problems of low interlayer bonding strength and easy corrosion of metal connectors in previous fine-grain core-layer OSBs.

The invention relates to a method for manufacturing reusable concrete formwork panels and to a reusable concrete formwork panel in concrete casting. In order to provide a method for manufacturing concrete formwork panels which can be used multiple times and which is inexpensive to manufacture, and a concrete formwork panel, wherein the concrete formwork panel is also suitable for fair-faced concrete casting, a particle board or oriented strand board having two cover sides and side faces is first provided, a water-based two-component coating composition is then applied to at least one cover side in liquid form, wherein one component of the coating composition has a thermosetting carrier resin and the second component comprises at least one release agent component. Finally, the coated coating composition is cured in a hot press, thereby forming a closed coating on the particle board or oriented strand board.

An improved oriented strand board (OSB) panel or board with higher resin loading and control of the density to provide improved and / or enhanced properties, and methods of manufacturing such an improved OSB panel or board. In several exemplary embodiments, as described in greater detail below, resin loading of the strands used for OSB formation is increased in conjunction with the density of the manufactured OSB board being controlled to a certain density or within certain density ranges for use with decorative panels, exterior cladding or siding panels, engineered wood flooring, and / or exterior structural wall or roofing panels. Both increased resin-loading and controlled density increases are required for overall core performance increases, and the surprisingly enhanced performance characteristics outweigh the increased cost of production.

An improved oriented strand board (OSB) panel or board with higher resin loading and control of the density to provide improved and / or enhanced properties, and methods of manufacturing such an improved OSB panel or board. In several exemplary embodiments, as described in greater detail below, resin loading of the strands used for OSB formation is increased in conjunction with the density of the manufactured OSB board being controlled to a certain density or within certain density ranges for use with decorative panels, exterior cladding or siding panels, engineered wood flooring, and / or exterior structural wall or roofing panels. Both increased resin-loading and controlled density increases are required for overall core performance increases, and the surprisingly enhanced performance characteristics outweigh the increased cost of production.

The invention discloses a shaving board reinforced by a fiber reinforced polymer layer and a preparation method and application thereof, and belongs to the technical field of wood composite materials. The shaving board comprises a shaving board base material and an FRP layer bonded to at least one surface of the shaving board base material. Wherein the FRP layer is composed of carbon fiber cloth and epoxy resin; the thickness of the shaving board base material is 18 mm, the density is 0.64-0.72 g / cm < 3 >, and the surface density of the carbon fiber cloth is 300 g / m < 2 >. The bending strength of the prepared FRP-PB reaches 53.98 MPa under the standard condition, and the strength retention rate reaches 84.8% after high-humidity or heat-moisture treatment; under normal humidity, the creep quantity is lower than that of a common protection plate and is equivalent to that of an oriented strand board; after high-humidity treatment, the FRP-PB shows more excellent creep resistance than a common shaving board and an oriented shaving board; the invention is especially suitable for bathroom cabinets, kitchen cabinets and other furniture and building built-in components.

A wood structural panel (such as oriented strand board, plywood, or other cellulosic panel) used for structural sheathing with one or more pre-applied weather resistant barriers or layers (WRBs) with integrated compression-resistant features. When installed, the integrated compression-resistant features provide an air space or channels the WRB layer and the exterior cladding. This allows drainage of rainwater or other moisture that otherwise become trapped between the cladding and WRB layer, thus providing extra protection for the structure. These features are applied at the factory during or immediately after the manufacturing of the structural sheathing panel with WRB layer, and thus are integrated therewith as part of the integrated finished product.

The utility model discloses a deviation rectifying device for OSB (oriented strand board) production, which comprises a support frame, a stacking frame is fixedly connected to the outside of the support frame, a shell is arranged at the top of the stacking frame, a base is fixedly connected to the top of the stacking frame, an electric push rod is fixedly connected to the bottom of the base, and the electric push rod is fixedly connected to the bottom of the shell. The output end of the electric push rod is rotationally connected with a first rotating shaft, and the outer portion of the first rotating shaft is fixedly connected with an impeller. Through the structure, the electric push rod at the bottom drives the first rotating shaft to rotate so as to drive the external impeller to rotate, so that the second connecting rods at the two ends of the impeller move, and one ends of the second connecting rods are fixed to the base, so that the clamping plates at the top of the base are driven to move, and the edges between oriented strand boards are tidied; therefore, tight arrangement can be achieved, and gaps and space waste between stacks are reduced. Therefore, the storage space can be more effectively utilized in a warehouse or in the transportation process, the storage and transportation efficiency is improved, and the cost is reduced.

The invention belongs to the field of oriented structural plates, and relates to an adhesive composition for an oriented structural plate, the oriented structural plate and a preparation method of the oriented structural plate. The adhesive composition for the oriented structural plate is prepared from the following components in parts by weight: 80 to 120 parts of polymerized MDI isocyanate, 5 to 10 parts of epoxidized natural rubber, 1 to 3 parts of carboxylated nanocellulose, 3 to 5 parts of a core-shell structure toughening agent, 1 to 2 parts of a silane coupling agent, 1 to 2 parts of a lignin model compound and 0.5 to 1 part of a latent catalyst. In the core-shell structure toughening agent, the core is polybutadiene, and the shell is polymethyl methacrylate. According to the adhesive composition disclosed by the invention, through multi-component collaborative design, the toughness is remarkably improved on the premise of not weakening the bonding strength, the contradiction between the bending strength and the impact toughness is fundamentally relieved, and a key material basis is provided for preparation of a high-performance formaldehyde-free oriented structural plate.

This invention discloses a continuous flat-press manufacturing method for rapidly curing polyurethane-based blockboard, relating to the field of wood processing technology. The method involves using finger-jointing and cross-jointing methods to form core boards from strips. When the finger-jointed strips are cross-jointed, the finger joints are staggered and do not overlap. The core boards are then longitudinally joined using finger-jointing on the production line to form continuous core boards. Continuous wood veneers are obtained by splicing wood veneers. Solvent-free foaming polyurethane resin is used as an adhesive; after applying the adhesive to the continuous core board and continuous wood veneers, the continuous wood veneers are laid on the upper and lower surfaces of the continuous core board to obtain a continuous blockboard blank. After hot pressing, the blank is sawn to obtain blockboard of the desired specifications. This invention solves the technical problems of high formaldehyde release, low production efficiency, and limited product width in blockboard manufacturing. This invention can also be used to prepare blockboard products with oriented strand board (OSB) as the substrate.

A waterborne external release agent for producing ligno-cellulose composites such as oriented strand board (OSB), particle board (PB) and medium density fiberboard (MDF), which employ isocyanate-based adhesives such as pMDI is provided. The release agent as a formulation includes effective amounts of at least one tertiary ethoxylated fatty amine, effective amounts at least one of an acidic alkyl phosphate ester and an acidic phosphate ester ethoxylate, or combinations thereof, with the balance water. The formulation can also include a defoamer and a nonionic surfactant. The formulation can be applied to mats and / or metal platens when making the ligno-cellulosic composites, wherein the effective amounts of the at least one tertiary ethoxylated fatty amine and the at least one of an acidic alkyl phosphate ester and an acidic phosphate ester ethoxylate, or combinations thereof provide improved release properties, corrosion inhibition for metal surfaces, and minimum film build up when making ligno-cellulosic composites.

The invention provides a high-strength graphene oxide bamboo oriented strand board and a preparation method thereof.The preparation method comprises the processes of bamboo delignification treatment, glue solution preparation, glue applying and paving and hot press molding, staged delignification treatment greatly improves retention of a cellulose skeleton, the problem that the material performance is reduced due to excessive delignification is solved, and the high-strength graphene oxide bamboo oriented strand board is obtained. The lignin removal effect is improved; the tertiary amine modified M-GO can obviously accelerate the curing process of phenolic resin, a more compact three-dimensional network structure with a higher crosslinking degree is formed, and the bonding strength, various mechanical properties (MOR, MOE and IB) and water resistance / moisture resistance (low TS and WA) of the bamboo OSB are improved; the seven-layer orthogonal assembly pavement enables the whole pavement of the plate to be more balanced, and the uniformity of the plate forming material is obviously improved. According to the obtained high-strength graphene oxide bamboo oriented strand board, the static bending intensity can reach 58.7 MPa (GB / T 17657-2022), the elastic modulus can reach 6850 MPa, the 24-hour water absorption thickness swelling rate is smaller than 8.3%, and the heat deformation temperature (1.82 MPa) is not lower than 142 DEG C (ISO 75-2).

A wood structural panel (such as oriented strand board, plywood, or other cellulosic panel) used for structural sheathing with one or more pre-applied weather resistant barriers or layers (WRBs) with integrated compression-resistant features. When installed, the integrated compression-resistant features provide an air space or channels the WRB layer and the exterior cladding. This allows drainage of rainwater or other moisture that otherwise become trapped between the cladding and WRB layer, thus providing extra protection for the structure. These features are applied at the factory during or immediately after the manufacturing of the structural sheathing panel with WRB layer, and thus are integrated therewith as part of the integrated finished product.

The application discloses a kind of formaldehyde-free light high-strength fine surface Chinese fir directional shaving board production equipment and process, including support table, the support table is equipped with multiple groups of directional roller, the directional roller is rotatably connected with the inner wall of the support table, the side of the directional roller is equipped with conveying belt;The side of the support table is equipped with pre-orientation mechanism, the pre-orientation mechanism includes fixed frame, the fixed frame is located at the side of the support table, the control frame is slidably arranged in the fixed frame, before directional paving to shaving piece, pre-orientation mechanism is used to pre-orient shaving piece, so that the direction of the surface layer and core layer of shaving piece is more easily controlled, the strength of the multi-layer structure directional shaving board formed by the perpendicular interlaced of directional surface layer shaving and directional core layer shaving is more easily reached the specified requirement.

The invention provides a micro-foaming adhesive, a preparation method and application of the micro-foaming adhesive and a preparation process of a multi-layer structure oriented strand board, and particularly relates to the technical field of strand boards. The micro-foaming adhesive comprises the following components in parts by weight: 80-90 parts of water-based phenolic resin, 0.5-1.5 parts of a composite foaming agent, 0.1-0.3 part of a foam stabilizer, 0.5-1 part of a wetting modifier and 5-10 parts of a diluent, the composite foaming agent comprises a foaming agent and a nano inorganic filler. According to the micro-foaming adhesive provided by the invention, all the components synergistically construct a continuous moisture-proof barrier and block a water vapor permeation channel, and meanwhile, the micro-foaming adhesive is adaptive to an oriented strand board production process, so that the moisture-proof performance of the micro-foaming adhesive meets the use requirements of outdoor semi-open and open spaces on the basis of maintaining the original mechanical properties and environmental protection characteristics of boards.

The flaking machine comprises a base, a supporting plate, a guide cover and a bearing plate, wherein the supporting plate and the guide cover are fixedly connected with the upper side of the middle of the base and the upper side of the right end of the base respectively, and the bearing plate is arranged in the supporting plate in an embedded mode. An anti-deviation limiting structure is arranged on the inner side of the left end of the base, the anti-deviation limiting structure comprises an adjusting rod, a movable plate, a fixed plate and a connecting plate, and the adjusting rod is connected into the base in a clamped mode; symmetrical electric telescopic rods are fixedly installed in the supporting plate and the bearing plate, a conveying structure is arranged in the bearing plate, the conveying structure comprises pressing rods, worm wheels, worms, limiting blocks and a first motor, and the pressing rods are rotationally connected to the inner side of the lower end of the bearing plate at equal intervals. According to the flaking machine for machining the light high-strength oriented strand board, deviation prevention limiting and downward pressing conveying can be conveniently carried out on different materials to be flaked, flaking can be conveniently carried out on the materials to be flaked, the abraded planer tool roller can be conveniently replaced, and the flaking efficiency is guaranteed.

The present disclosure discloses a method for preparing an anti-mold and odor-removing oriented strand board (OSB). The anti-mold and odor-removing OSB includes a biologically active substance. The method includes preparing the biologically active substance, preparing a molecular nest carrier, loading the molecular nest carrier with the biologically active substance, preparing a functional impregnating agent, and impregnating a OSB with the functional impregnating agent. Preparing the molecular nest carrier includes first-time modifying zeolite powder, second-time modifying zeolite powder, modifying β-cyclodextrin, mixing, and cross-linking. The anti-mold and odor-removing OSB prepared by the present disclosure exhibits excellent antibacterial, anti-mold and odor-removing performance, high mechanical strength, and superior aging resistance.

The utility model discloses a cleaning device for paved oriented strand boards, which comprises a workbench, two sides of the workbench are fixedly connected with a sliding block and a fixed block, the inside of the sliding block is slidably connected with a first sliding column, one side of a first rotating shaft is fixedly connected with a cleaning roller, and the upper end of the cleaning roller is provided with a protective cover. A collecting box is connected to one side of the protective cover in a sleeving mode, a turbine is arranged in the collecting box, a dust outlet is formed in the lower end of the turbine, a dust suction box is fixedly connected to the interior of the second sliding column, dust suction equipment is arranged in the dust suction box, and dust removal cloth is fixedly connected to the interior of the third sliding column. A recovery rotating shaft is fixedly connected to the interior of the supporting column, a recovery roller is fixedly connected to the exterior of the recovery rotating shaft, and through the structure, dust on the European pine boards can be better reduced, flying of the dust during cleaning can be reduced, the cleaning efficiency is improved, and the cleaning time is shortened.