144 results about "Medium density fiberboard" patented technology

The utility model relates to the technical field of pressing for medium density fiberboard production, and discloses a pressing device for medium density fiberboard production, which comprises a worktable, a connecting frame, a driving device and a lower pressing plate, the connecting frame is fixedly mounted at one end of the worktable, and the lower pressing plate is mounted at the bottom of the connecting frame through the driving device. Two first vertical plates are fixedly mounted at one end of the workbench, a first electric telescopic rod is fixedly mounted at one end of each first vertical plate, a mounting base is fixedly mounted on the outer side of each first electric telescopic rod, and a brush body and a first scraping plate are mounted at the bottom of each mounting base. And after machining is completed, first electric telescopic rods on the two sides are started, so that a mounting base pushes the medium density fiberboard to move forwards, a brush body and a first scraping plate scrape off the adhesive residues on the outer surface of the workbench, and meanwhile second electric telescopic rods on the two sides are started to drive a second scraping plate to scrape off the adhesive residues on the two sides of the medium density fiberboard.

The present invention relates to the technical field of sheet defect detection, and specifically discloses a surface defect detection device and method based on the production of waterproof medium density fiberboard, including a defect detection box. A vision sensor is provided inside the defect detection box, and the vision sensor is used to identify and detect surface defects of the fiberboard to be detected. There are also a sheet feeding port and a sheet discharging port, and the sheet feeding port and the sheet discharging port are arranged on the side of the defect detection box; a first camera, the first camera is installed above the defect detection box, the recognition direction of the first camera is downward, and the first camera is used to identify the object below it; two second cameras, the two second cameras are respectively installed at the front and rear ends of the defect detection box, the recognition directions of the two second cameras are horizontal, and the second cameras are used to identify the objects within their horizontal ranges.

The invention relates to the technical field of density fiberboard conveyors, in particular to an intelligent suspension conveying device for medium density fiberboard production, which comprises a suspension conveyor and two groups of lifting and clamping assemblies, the lifting and clamping assemblies are used for clamping and lifting boards, the suspension conveyor is used for suspending and conveying the boards, and the lifting and clamping assemblies are used for clamping and lifting the boards. The clamping and lifting assemblies are matched with the suspension conveyor, one side of the plate can be lifted to the suspension conveyor, the plate is conveyed in a vertical state in the suspension process, then the horizontal space of the plate can be converted into the vertical space, the plate can be conveyed in the vertical state, the plate can be conveyed in the vertical state, and therefore the plate can be conveyed in the vertical state, and the plate can be conveyed in the vertical state. And meanwhile, one suspension conveyor is matched with the two clamping and lifting assemblies, the clamping and lifting time needed by the clamping and lifting assemblies can be saved, after one plate is hooked, the next plate can be rapidly transferred and hooked, and the suspension space is fully utilized.

The invention relates to the technical field of formaldehyde purification, and discloses a medium density fiberboard production glue-making formaldehyde tail gas multi-stage circulation absorption device which comprises a formaldehyde absorption device, an upper door is installed at the upper end of the formaldehyde absorption device, and two sets of side doors are installed at the position, close to the front side, of one end of the formaldehyde absorption device. A switching assembly is arranged on the inner side of the formaldehyde absorbing device, multi-stage filtering assemblies are arranged in the positions, close to the front and rear sides of the switching assembly, in the lower side of the formaldehyde absorbing device, and regeneration assemblies are arranged in the positions, close to the front and rear sides of the switching assembly, in the upper side of the formaldehyde absorbing device; the switching assembly comprises a switching shell fixedly arranged in the formaldehyde absorption device, and cavities are formed between the switching shell and the inner walls of the front side and the rear side of the formaldehyde absorption device. According to the multi-stage circulating absorption device for the formaldehyde tail gas generated in glue making in medium density fiberboard production, through overall cooperative use, pores of activated carbon are automatically flushed through high-temperature water vapor, and the activated carbon is fully utilized.

The present invention relates to a process for preparing a bonding resin, lignin in solid form or in the form of a dispersion in water is mixed with a crosslinker; and optionally one or more additives followed by addition of a basic solution. The bonding resin is useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards, laminates or mineral wool insulation.

The present disclosure relates to an aqueous dispersion binding agent for use in the manufacture of medium density fiberboard (MDF) and high-density fiberboard (HDF). The aqueous binding agent comprises a polyol component, soy flour, a sulfite agent, a surfactant, and an anti-foam agent. The present disclosure also provides a method for making MDF and HDF using an aqueous binding agent.

The invention relates to a floor board including a decorative surface layer applied to a substrate, where the substrate optionally MDF or HDF material at a side edge thereof. The invention also relates to a floor board covering consisting of a plurality of floor boards according to the invention. The invention further relates to a method for manufacturing such floor boards according to the invention.

The utility model discloses a noise reduction composite floor. The composite floor body comprises a surface layer, a first waterproof layer, a first noise reduction layer, a first strengthening layer, a second noise reduction layer, a second strengthening layer, a second waterproof layer and a bottom layer. The surface layer is made of stone plastic materials, the first waterproof layer and the second waterproof layer are polyurethane waterproof coating layers, the first strengthening layer and the second strengthening layer are made of medium-density fiberboards, and the bottom layer is made of thermoplastic polyester elastomer materials. The first noise reduction layer is composed of a first cork frame and a first noise reduction piece, and the first cork frame is provided with a first rectangular groove. The second noise reduction layer is composed of a second cork frame and a second noise reduction piece, and the second cork frame is provided with a second rectangular groove. According to the floor, through unique structural design and material combination, excellent noise reduction performance is achieved, and noise of different frequencies is effectively blocked; good waterproofness is achieved, and the floor can be prevented from being affected with damp; high strength and stability are achieved, and the device can adapt to various use scenes; the comprehensive performance is excellent, and the quality and the use comfort of indoor floor decoration are improved.

The invention provides medium-density fiberboard drying waste gas treatment equipment, and relates to the technical field of waste gas treatment, the medium-density fiberboard drying waste gas treatment equipment comprises a fixed seat, a bracket is fixedly mounted on the side of the fixed seat, a barrel body is fixedly mounted in the fixed seat, gas inlet pipes are fixedly mounted at the two ends of the barrel body, and a driving motor is fixedly mounted at one end of the barrel body. According to the invention, the movable cylinder is pushed to move by the air pressure of waste gas, the movement of the movable cylinder realizes the filtration of a filter point according to the thrust of the air pressure, the movable cylinder enters the fixed cylinder under the pushing of the air pressure, and the air outlet hole preferentially contacts with the 1 / 2 part of the filter plate for filtration; the gas filtered by the filter plate is secondarily adsorbed and filtered by water mist sprayed by the atomizing spray head, the gas pressure of the waste gas is reduced in the later period, the movable cylinder is shrunk by a half distance, and the gas outlet hole moves to the other half position for filtering.

The utility model discloses a medium density fiberboard processing wood chip screening machine which comprises a base, the base is connected with a screening assembly used for screening raw materials for medium density fiberboard processing wood chips, and the screening assembly comprises a screening piece which is installed on the base and used for screening out impurities in raw material mixtures, the screening part comprises a rotating cylinder rotationally connected to the right end of the upper side of the base, a filtering cylinder used for filtering impurities is installed on the left side of the rotating cylinder, and a recycling box used for receiving the impurities is placed on the portion, corresponding to the lower side of the filtering cylinder, of the upper side of the base. According to the wood chip screening machine for medium-density fiberboard processing, the air cylinder assembly is matched with the push plate, materials retained in the rotating cylinder and the filter cylinder are guided out, the material recovery rate is increased, and the water pump, the three-way valve, the corrugated pipe, the water spraying ring, the branch pipe and the water spraying strip are matched with one another, so that the inner wall and the outer surface of the filter cylinder are cleaned.

The utility model discloses a primary-secondary door leaf with an anti-deformation structure, which comprises a first door leaf used as a secondary door and a second door leaf used as a primary door, and laminated veneer lumber is arranged at the adjacent ends of the first door leaf and the second door leaf. The laminated veneer lumber and the hollow shaving board arranged on the side of the laminated veneer lumber are used as core materials of the first door leaf and the second door leaf; the front side and the rear side of the laminated veneer lumber and the hollow-core shaving board are respectively provided with a medium-density fiberboard, the outer surfaces of the medium-density fiberboards are coated with facing material layers, and edge sealing materials are arranged at the ends of the laminated veneer lumber and the hollow-core shaving board. The high-strength laminated veneer lumber is adopted as one part of the core plate, the overall strength of the door leaf is guaranteed, the other part of the core plate is made of the hollow-core shaving board, and gaps used for absorbing deformation are formed in the hollow-core shaving board. In addition, the medium-density fiberboards arranged on the surfaces of the laminated veneer lumber and the hollow-core shaving board are made of soft materials, small gaps exist in the medium-density fiberboards, and the anti-deformation effect can also be achieved.

The utility model discloses a sand finish paint coating structure which comprises a base material, a first primer layer, a first white primer layer, a second white primer layer, a sand finish paint layer and a transparent matte paint layer, the base material is a medium density fiberboard; the first polishing layer is coated with the first primer layer; the first white primer layer is coated on the second polishing layer; the second white primer layer is coated on the third polishing layer; the sand finish paint layer is coated on the fourth polishing layer; and the transparent matte paint layer is coated on the sand finish paint layer. The point spraying face is formed on the surface of the sand finish paint layer in a point spraying mode, a new visual effect is brought to an existing sand finish paint coating structure through the design of the point spraying face, aesthetic fatigue of consumers on the existing sand finish paint coating structure can be eliminated, meanwhile, manufacturers do not need to develop new products and new decorative paint again, only one process step needs to be added to a production line, and the production cost is reduced. The production line does not need to be replaced or redesigned, and the development cost, labor cost and time cost of manufacturers are greatly reduced.

The utility model discloses a keel anti-deformation structure and a wooden door, the keel anti-deformation structure comprises a keel frame and a combined pressing keel, and the keel frame comprises a main keel; the combined pressing and attaching keel comprises a shaving board and an anti-deformation medium density fiberboard, the anti-deformation medium density fiberboard is attached to the shaving board, the combined pressing and attaching keel supports the keel frame, and the anti-deformation strength of the combined pressing and attaching keel can be improved through the arrangement of the anti-deformation medium density fiberboard; the combined pressing and pasting keels are arranged on the two sides of the keel frame in a staggered mode, one end of each combined pressing and pasting keel is arranged on the keel frame, and the other end of each combined pressing and pasting keel and the other adjacent combined pressing and pasting keel are arranged in an up-and-down attached mode, so that the length of a single combined pressing and pasting keel can be shortened; and the length of the combined pressing keel can be controlled in a standardized mode, materials are saved, and the material utilization rate is increased. The up-and-down attaching arrangement can avoid insufficient strength at the splicing position, and the anti-deformation strength is improved.

A billiards table is disclosed comprising a synthetic slate that includes a top layer formed from a reinforcing fiber and a curing resin, and a support layer adhered to a bottom side of the top layer. A first frame structure is attached to a bottom side of the support layer. The support layer may include polyurethane foam or medium-density fiberboard. A heating element is attached to a bottom side of the support layer, and an insulating layer covers a bottom side of the heating element. A second frame structure supports the first frame structure and defines a cavity that contains a weight. The reinforcing fiber may be carbon fiber, and the curing resin may be epoxy-based, with a ratio of approximately 1:1 by weight. A plurality of legs may support both the first and second frame structures.

The invention discloses an anti-deformation door plate with a sound insulation function and a honeycomb structure and without a straightener, which comprises an aluminum honeycomb core plate, a first inner-layer medium-density fiberboard and a second inner-layer medium-density fiberboard, and the first inner-layer medium-density fiberboard and the second inner-layer medium-density fiberboard and the second inner-layer medium-density fiberboard are adhered to two sides of the aluminum honeycomb core plate in the thickness direction. The upper frame, the left frame, the lower frame and the right frame wrap the aluminum honeycomb core plate to form a plate-shaped structure, and a first outer-layer medium-density fiberboard and a second outer-layer medium-density fiberboard are bonded to the two thickness sides of the plate-shaped structure respectively. The door plate is an integrated door plate, paint spraying, handle adding, hinge adding and other treatment can be conducted on the door plate subsequently, the application range is wide, the sound insulation effect is good, high deformation resistance is achieved, and the door plate as high as 3000 mm can be manufactured while a straightener is not used.

To provide a wooden shaft material exhibiting a high yield with less variation in appearance and bending strength, and to provide a joint structure thereof.SOLUTION: A rectangular cross-sectional wooden shaft material 10 comprises a core material 1 made from a medium density fiberboard folded into a rectangular cylindrical shape, and at least one reinforcing material 2 made from a medium density fiberboard folded into a rectangular cylindrical shape, that is provided around the core material 1.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of solid waste utilization furnaces, and discloses a medium density fiberboard calcination solid waste utilization furnace which comprises a base, an installation seat is fixedly assembled on the top of the base, a heat preservation pipe is installed in an inner cavity of the installation seat, a water tank is fixedly assembled on the outer wall of the installation seat, and a water pump is fixedly assembled on the outer wall of the water tank. According to the medium density fiberboard calcination solid waste utilization furnace, a recycling box is arranged on the outer wall of a mounting base, smoke generated by incineration is guided into the recycling box through a smoke guide pipe, high-temperature and high-heat smoke makes contact with the outer wall of a heat conduction pipe, heat is transmitted to water in an inner cavity of the heat conduction pipe, the temperature of the water is increased, and then circulation is conducted through a heat preservation pipe; and a certain heat preservation effect is achieved on the outer wall of the mounting base through the heat pipe, heat in high-temperature and high-heat flue gas can be recycled, a certain heat preservation effect can also be achieved on the inner wall of the mounting base, and therefore the incineration bin can conduct incineration operation better.

A cordless aw is provided with regenerative braking means that increases the number of repeated cuttings the saw is able to perform (x) per full discharge cycle of the battery pack, as compared to the number of repeated cuttings achievable by the same saw not employing a regenerative braking means (y) per full discharge cycle of the battery pack, such that x / y is approximately at least one of the following: i) 1.1 when cutting a Pressure-Treated (PT) lumber workpiece having a cross-sectional size of approximately 89 mm×89 mm±2 mm, ii) 1.15 when cutting a Spruce Pine Fir (SPF) lumber workpiece having a cross-sectional size of approximately 38 mm×89 mm±2 mm, or iii) 1.25 when cutting Medium Density Fiberboard (MDF) workpiece having a thickness of approximately 19 mm±1 mm and a width of approximately 76 mm±2 mm.

The utility model provides an acid-resistant and alkali-resistant medium-density fiberboard, which relates to the technical field of medium-density fiberboards and comprises a base plate, a heat insulation layer fixedly connected to the outer surface wall of the base plate, a buffer layer fixedly connected to the outer surface wall of the heat insulation layer, and a first acid-resistant and alkali-resistant coating fixedly connected to the outer surface wall of the buffer layer. A wear-resisting layer is fixedly connected to the outer surface wall of the first acid-resisting and alkali-resisting coating, a second acid-resisting and alkali-resisting coating, a buffer layer and a heat insulation layer are evenly sprayed to the outer surface wall of the wear-resisting layer, four fixing grooves are formed in the base plate, and under the action of the second acid-resisting and alkali-resisting coating, when the surface of the fiberboard makes contact with acid and alkali, the acid and the alkali can be effectively resisted; and under the action of the first acid-base resistant coating, when the acid-base strength is too high and the wear-resistant layer is penetrated, the acid and the base can be resisted again, so that the acid and the base can be blocked at the wear-resistant layer, and the base plate is prevented from being influenced by the acid and the base.

The present invention relates to a door panel comprising a stile (1) filled with rock wool and covered on both sides with mineral sodium silicate barrier or gypsum board, a door panel comprising MDF board (2) covered on both sides of the mineral sodium silicate barrier or gypsum board barrier, and a door comprising said door panel. The inventive door panel and door provide both fire resistance and acoustic insulation.

In the field of decorative floor coverings, decorative panels are known that have a core layer based on MDF (medium-density fiberboard) or HDF (high-density fiberboard) onto which a decorative substrate is bonded to give the panels the desired appearance. The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel, or a wall panel. The invention also relates to a floor covering consisting of a plurality of panels joined together.

The invention relates to a method and an apparatus for process-optimized manufacture of wooden boards, in particular fiberboards or MDF boards. In order to provide such a method and such an apparatus, which allow quality optimization and at the same time also continuous quality assurance, make it possible to determine the best possible control variables particularly easily and quickly, and additionally ensure continuous production with the lowest possible reject rate and the greatest possible process stability, according to the invention at least one process parameter, in particular the water content and / or the amount of adhesive applied to the fibrous material, is measured by near-infrared spectroscopy and the measured values of the at least one process parameter are transmitted to a control unit for process optimization and / or for process-optimized control of the method. The at least one process parameter is measured at one or more positions selected from a position during the provision of wood chips directly downstream of the lumberyard, in particular between the lumberyard and a subsequent wood-chip scrubber, and / or a position downstream of the provision of wood chips and during the boiling of the fibrous material, in particular between a wood-chip scrubber and a pre-boiler or a boiler, and / or a position directly downstream of the drying of the glued fibrous material, in particular between the dryer and a screen and / or the fiber bin, and / or a position on or in the fiber bin, in particular on a window of the fiber bin, and / or a position downstream of the spreading, in particular downstream of the spreading station and / or downstream of a molding machine, and / or upstream of a press for pressing the molded strand and / or in the region of the molding belt.

The utility model provides an environment-friendly flame-retardant medium-density fiberboard, which relates to the technical field of fiberboards and comprises a frame, a fiberboard body is movably inserted into the inner surface wall of the frame, and a slider is fixedly mounted on one side of the outer wall of the frame. According to the utility model, before the fiberboard is used, a worker can insert the baffle plate and the fiberboard into the frame, the clamping block can fix the position of the baffle plate and prevent the fiberboard from falling off from the frame, and the frame and the baffle plate provide extra support for the fiberboard, so that the stability of the whole structure is obviously enhanced; the fiberboards are prevented from deforming or cracking when needing to bear heavy objects or large pressure, the integrity and safety of the fiberboard structure are guaranteed, meanwhile, the sliding grooves, the sliding blocks and the fixing screws on the frame are matched with one another, splicing of different fiberboards can be facilitated, the time for waiting for drying and curing of adhesives is greatly shortened, and the service life of the fiberboards is prolonged. And the splicing efficiency is improved.

A panel, in particular wall, ceiling, furniture or floor panel, wherein the panel comprises: a support panel, such as a medium density fiber (MDF) panel, a high density fiber panel (HDF) or a particle panel; wherein the panel has at least one chamfer at least one edge; and a decorative printing layer applied to the panel and to the at least one chamfer.

The invention discloses medium-density fiberboard hot-press forming equipment adopting a correction overlying mechanism, and particularly relates to the field of plate hot-press forming. The medium-density fiberboard hot-press forming equipment comprises a hot press, two sets of lifting sliding rails are symmetrically installed on the side wall of the hot press, and threaded rods are rotationally arranged in the lifting sliding rails; auxiliary mounting plates in sliding fit with the lifting sliding rails are in threaded connection with the outer walls of the threaded rods, a surface layer optimizing part for shaping the surface of the plate blank is arranged between the two sets of auxiliary mounting plates, and a permeation promoting part for promoting permeation of glue in the plate blank is arranged on one side of the shaping part. The pattern wheel periodically vibrates to promote uniform permeation of glue, the leveling roller and the lower alignment roller cooperatively flatten the surface and the edge of the plate blank, and the cleaning air pipe performs high-pressure dust removal, so that a correction overlying mechanism is formed, and the defects of glue agglomeration, surface concavo-convex, edge curling, impurity pollution and the like are effectively eliminated; the plate blank enters the hot-pressing process in a flat and dust-free state, and the quality stability of a finished product is comprehensively improved.

A floor board including a decorative surface layer applied to a substrate, where the substrate is optionally MDF or HDF material at a side edge thereof, and at least one side edge together with a side edge opposite thereto forming a first pair of opposite side edges of said substrate. The first pair of opposite side edges includes mechanical first and second coupling parts, respectively, allowing the floor board to be coupled at the respective side edges with a similar floor board. Also, a floor board covering consisting of a plurality of the floor boards and a method for manufacturing such floor boards.

This utility model discloses an aluminum-wood composite structure door, including an internal core panel. The core panel includes a first keel and a second keel. A first filler is provided on the inner side of the first and second keels, and a second filler is provided on the outer side of the first and second keels. A veneer laminate is provided on the outer side of the second filler. A multi-layer board is provided on the front and rear sides of the core panel, and a medium-density fiberboard is provided on the outer side of the multi-layer board. The side of the veneer laminate is sealed by a side edge sealing profile. This utility model improves the overall structural strength by setting an aluminum alloy keel inside the door panel, and setting the first filler, second filler, and veneer laminate on the inner and outer sides of the keel to form the core panel. At the same time, multi-layer boards and medium-density fiberboard are connected on the front and rear sides of the core panel through a composite process, and the side of the veneer laminate is sealed by a side edge sealing profile.

The utility model discloses a medium density fiberboard paving pre-pressing device which comprises machine boxes, a pre-pressing box is installed between the two machine boxes, a telescopic cylinder is installed in the pre-pressing box, a second support is installed at the output end of the telescopic cylinder, a plurality of small wheels are installed on the second support in a gradient mode, and the small wheels are installed on the second support. A pre-pressing platform is arranged in the pre-pressing box and above the second support, and a through hole is formed in the pre-pressing platform. According to the scheme, the first conveying belt can convey a fiberboard into the pre-pressing box to complete automatic feeding, after pre-pressing is completed, the telescopic cylinder moves to drive the small wheels to penetrate through the through holes to lift the fiberboard, and due to the fact that the small wheels are arranged in a gradient mode, the fiberboard slides down from the small wheels to the second conveying belt to complete automatic discharging under the action of gravity.

The utility model relates to the technical field of medium density fiberboard processing, and discloses a compaction device with a protection mechanism, which comprises a compaction table, a positioning frame is fixedly mounted on the surface of the compaction table, a support is fixedly mounted on the surface of the compaction table, and an electric compaction plate is arranged on the surface of the support. By arranging a control assembly, an output shaft of a motor drives a reciprocating lead screw to rotate in a connecting frame, in the rotating process of the reciprocating lead screw, a sliding ring can stably and transversely move in the connecting frame through supporting of a supporting rod, and when the sliding ring moves, a connecting plate fixed to the surface of the sliding ring can drive a brush plate to move on the surface of an observation window; according to the observation window, scraps adhering to the surface of the observation window are scraped, the situation that the scraps stay on the observation window for a long time, and machining judgment of an operator on the medium-density fiberboard is affected is avoided, and meanwhile the aim of conducting double protection on the observation window and the operator can be achieved through the mode.

The present invention relates to a process for the manufacture of a lignocellulosic fibre-based composite material comprising the steps of:obtaining a fibrous mix (S1) comprising a defibrated lignocellulosic material and defibrated plant seeds;blending the fibrous mix with a resin (S2) to form a composite mixture; andcuring (S3) the composite mixture, thereby forming the lignocellulosic fibre-based composite material.A preferred application of this process is the manufacture of fibreboards, such as MDF.