21 results about "Wood glue" patented technology

The utility model discloses a laminated slab strip reinforcing structure which comprises an ejector rod, the bottom of the middle end of the ejector rod is fixedly connected with a lead screw, the outer side of the lead screw is provided with threads and is in threaded connection with a fastening nut, and the ejector rod is arranged above a gap between two laminated slabs. The screw rod penetrates through the wood glue plate arranged below a gap between the two laminated plates and is in sliding connection with the wood glue plate, cement cushion blocks are arranged between the lower portions of the two ends of the ejector rod and the tops of the laminated plates, the screw rod is sleeved with a sleeve, and the sleeve is in sliding connection with the screw rod. The ejector rod is made to be higher than the pouring face of concrete, the screw rod is sleeved with the sleeve, the screw rod and the concrete are separated, the screw rod and the ejector rod can be taken down conveniently after pouring is completed, cost can be saved through recycling, and the working procedure of cutting protruding parts is omitted.

The invention belongs to the technical field of hot-pressing devices, and particularly discloses a bamboo laminated wood gluing assembly hot-pressing pressurizing device which comprises a machine base, a conveying rack is fixedly erected in the middle of the interior of the machine base, guide frames are fixedly installed on the two sides of the upper surface of the conveying rack correspondingly, and a plate pressing mechanism is arranged in the machine base; guide seats are slidably mounted in the two groups of guide frames, a frame body is jointly mounted on the lower surfaces of the two groups of guide seats, two-way telescopic rods are arranged on the two sides in the frame body, the two ends of the two groups of two-way telescopic rods are jointly connected with push plates respectively, and connecting columns are mounted on the two sides of the inner walls of the two opposite push plates; foreign matters or indentations on the surface of the pressure seat are automatically detected through the laser leveling positioning instrument, and defect positions are marked through fiber cotton, so that the detection efficiency and the maintenance convenience are remarkably improved; and meanwhile, the gluing device has the advantages of uniform gluing, reliable hot pressing, high adaptability and the like, and the production quality and the automation level of the bamboo laminated wood are effectively improved.

The present invention provides an adhesive composition, comprising a resin material modifier and a wood adhesive; the resin material modifier uses 3-chloro-2-hydroxy-propyl as a capping group, has a sulfur content of 5% to 60%, and a hydroxyl content of 1% to 10%. In the adhesive composition system of the present invention, a polythiol compound is used as a substrate, and 3-chloro-2-hydroxy-propyl is used as an end-capping group. By controlling the mutual restraint of sulfur content and hydroxyl content, the resin material modifier can achieve stable compatibility in a conventional wood glue system, while achieving a good level of dimensional stability for reconstituted wood substrates, excellent anti-aging performance, a thickness expansion rate of ≤3.5%, and a width expansion rate of less than or equal to 3%. The present invention also provides an application of the adhesive composition.

The application discloses a kind of plugging formwork structures of the pre-poured floor top plate of super-long building and the post-poured band on both sides, belong to the technical field of civil construction formwork, solve how to reliably seal on both sides of post-poured band conveniently, and improve the quality problem of the combination of post-poured band secondary pouring and floor slab concrete once pouring;Replace the plugging wood glue board strip under the steel mesh in the plate with inflatable flat rubber air bag, realize the sealing of concrete on both sides of post-poured band, when the concrete on both sides of post-poured band is finally cured, deflate, make the flat rubber air bag shrink, and it is convenient to take out, so as to ensure the reliable combination of subsequent post-poured band concrete and once pouring concrete, and the operation is convenient on site.

The invention relates to the technical field of assembly type laminated slab construction, and particularly discloses an assembly type laminated slab disc buckle type quick release supporting frame and a construction method thereof.The assembly type laminated slab disc buckle type quick release supporting frame comprises a plurality of vertical rods, and a plurality of connecting discs are arranged on the vertical rods at intervals in the vertical direction; the two ends of the transverse rods are detachably connected with the connecting discs through connecting base assemblies; the two ends of each inclined strut are detachably connected with the connecting disc through a connecting base assembly; the adjustable base is arranged at the bottom of the vertical rod and used for adjusting the height of the bottom of the vertical rod; the adjustable jacking is arranged at the top of the vertical rod and used for adjusting the height of the top of the vertical rod; the square steel is arranged at the top of the adjustable jacking; and the wood glue plate is arranged at the top of the square steel and is used for supporting the assembly type laminated slab. The defects of the supporting frame body in the background technology are overcome.

The invention relates to the technical field of wind power tower drums, in particular to a hollow segmental bamboo-like wood wind power tower drum structure which comprises a plurality of segmental uniform-section drum bodies, and intelligent connecting systems similar to bamboo joints are arranged in the plurality of segmental uniform-section drum bodies. The multiple segmented uniform-section barrels are coaxially assembled through an intelligent connecting system similar to a bamboo joint, and the wall thicknesses of the multiple segmented uniform-section barrels are distributed in a non-linear increasing mode from the top end to the bottom end. In the structure performance, excellent load transmission efficiency is achieved through the bamboo joint imitating segmented design and an intelligent connection system, the stress concentration risk is effectively reduced, in the material aspect, the weight is greatly reduced while the strength is guaranteed through optimal combination of the wood gluing structure and the fiber reinforcement layer, the weight is obviously reduced compared with a traditional steel tower, and the dynamic characteristic is greatly improved. And the built-in tuned mass damping system and the distributed optical fiber monitoring module work cooperatively, so that the wind vibration resistance and the operation stability are remarkably improved.

The utility model discloses a kind of viscosity detection devices for woodworking glue production, including base, stand and controller, the upper surface of the base is fixedly installed with stand, the surface of the stand is equipped with the controller that can move up and down, the rear end side of the controller is installed with locking knob, the lower end of the controller is installed with motor, the output end of the motor is fixedly installed with rotor, the side surface of the motor is installed with protection frame.The utility model relates to a kind of viscosity detection devices for woodworking glue production, when the rotor needs to be disassembled, pull down protection frame, when protection frame drops, slide sleeve will be driven to drop, until the positioning rod of protection frame is withdrawn from the positioning groove of motor, in this process, spring will be compressed by the slide sleeve that is moved down, finally overturn protection frame and loosen the external force that pull down protection frame, at this time, there is greater working space when the rotor is disassembled, and it is not affected by the fixed protection frame.

The utility model is suitable for the technical field of wood processing, and provides a wood gluing machine capable of uniformly gluing, which comprises an operation table, supporting frames are installed on the left side and the right side of the operation table correspondingly, and rotating rollers are rotationally installed at the front end and the rear end of the operation table correspondingly. According to the wood gluing machine with the uniform gluing function, the conveying belt is arranged to convey wood boards at the uniform speed, coating is sprayed to the surfaces of the wood boards at the uniform speed, the wood boards can pass through the first scraping plate after spraying is completed, and along with uniform-speed conveying of the wood boards, the coating on the surfaces of the wood boards can be scraped to be flat through the first scraping plate; through the arrangement of a recycling box and a second scraping plate, along with continuous conveying of the conveying belt, the coating falling onto the surface of the conveying belt can be scraped down by the second scraping plate and flows into the recycling box to be collected, and through the arrangement of a draught fan and an air groove, air blowing and dust removal can be conducted on the wood board; therefore, the subsequent coating effect is improved.

The utility model provides a tray wood gluing machine which comprises a bottom face supporting mechanism, the bottom face supporting mechanism comprises a containing bottom plate which is placed on the ground in a supporting mode, dispatching supports are installed on the two sides of the plate face of the containing bottom plate respectively, concave open grooves are formed in the side walls of the edges of the dispatching supports, and the side walls of the concave open grooves are matched with the designated containing bottom plate. A trapezoid support used for arrangement is arranged in the middle of the top end of the containing bottom plate, a regulation and control open groove is formed in the middle of the trapezoid support, an attaching gasket is hinged to the edge side of the regulation and control open groove, rotation of the tray wood is dispatched through control rotation of the containing bottom plate and the rotary disc and lifting rotation of the attaching gasket, and during rotation, the tray wood is adjusted to rotate. The brush roller shaft and the outer wall of the tray rotate in a contact mode, the groove position coordination effect of the concave open groove is combined, weight sharing is achieved between the brush roller shaft and the trapezoidal support, the rotating disc and the connecting sleeve are used for sleeving and limiting to achieve rotation, the steering motor is used for controlling swing of the arc-shaped poke rod after being limited by rotation, and therefore contact rotation of the brush roller shaft and the outer wall of the tray is achieved.

The invention is suitable for the technical field of wood non-adhesive connection, and provides a China fir round tenon segmented variable-speed rotary friction welding method which is characterized in that aiming at the characteristics of China fir materials, a'preheating-main welding-stable welding 'three-stage variable-speed process is innovated, and a special tenon with a spiral guide groove and an annular stop boss is matched, so that the China fir round tenon segmented variable-speed rotary friction welding is realized. And the surface is coated with a lignin-nano silicon dioxide composite modifier. The method comprises the steps of mortise precision pretreatment, tenon modification preparation, segmented welding and heat preservation curing, specifically, gradient heating is conducted to 180-220 DEG C in the preheating stage, lignin is melted at a high speed in the main welding stage, and three-dimensional mechanical interlocking is formed at a low speed in the stable welding stage. The problems of high wood loss rate, insufficient joint strength and poor water resistance in the prior art are solved, compared with the prior art, the pulling resistance of the welded joint is greatly improved, the wood loss rate is remarkably reduced, the thickness swelling rate of water absorption in 24 hours is greatly reduced, the process is stable, the automation degree is high, and adhesive pollution is avoided; and the industrial green production requirements of furniture manufacturing and wood structure buildings are met.

The utility model is suitable for the technical field of platform roof canopies, and provides a platform canopy expansion joint cover plate structure which comprises a first beam body and a second beam body, and an expansion joint is formed between the first beam body and the second beam body. One side of the protective cover plate is fixedly connected with the top end of the first beam body; the other side of the protective cover plate covers the top end of the second beam body; the middle part of the protective cover plate covers the expansion joint; a buffering seam is formed between the protective cover plate and the top end of the second beam body, a heat preservation extruded sheet is arranged in the buffering seam, and a wood glue plate is arranged between the protective cover plate and the heat preservation extruded sheet. The protective cover plate is installed at the top end of the first beam body through a fixing assembly. And an extension plate is integrally formed on the bottom surface of the end part of the protective cover plate, a rain baffle is arranged on the extension plate through a mounting assembly, and the rain baffle is used for achieving a rain blocking effect on the buffer seam, so that rainwater is prevented from entering the expansion joint from the buffer seam.

The present invention discloses a method for constructing a post-cast strip of a precast floor top plate of an extra-long building, which belongs to the technical field of civil construction formwork. The method solves the problem of how to conveniently and reliably seal both sides of the post-cast strip and improve the quality of the combination of the secondary cast post-cast strip and the single-cast floor slab concrete; an inflatable and deflable flat rubber air bag is used to replace the sealing wood glue board strip under the steel mesh in the plate, thereby realizing the sealing of the concrete on both sides of the post-cast strip; when the concrete on both sides of the post-cast strip is finally set, the flat rubber air bag is deflated to shrink and is easy to remove, thereby ensuring the reliable combination of the subsequent post-cast strip concrete and the single-cast concrete, and convenient on-site operation; the present invention kills three birds with one stone, namely, it realizes the sealing of narrow gaps, and also facilitates the overall removal of the later sealing objects. In addition, the flat air bag is also reusable.

This utility model discloses a bonding device for mixed eucalyptus and poplar laminated timber, including a base, a clamping mechanism, a cleaning and gluing mechanism, a gripping mechanism, and a conveying mechanism mounted on the base. When two pieces of eucalyptus and poplar laminated timber fall onto the worktable, the hydraulic cylinder is activated to move the support plate downwards, and the gripping cylinder is activated to adjust the angle of the suction cup. At the same time, the suction cup picks up the upper piece of timber. The electric push rod is activated to adjust the height of the cleaning and gluing mechanism by moving the slide rail. Then, the motor for driving the rotation of the drive spur gear is activated. The meshing of the drive spur gear and the rack drives the housing to move. The bottom of the upper piece of timber and the top of the lower piece of timber are cleaned by two cleaning plates and a dust suction plate. The gluing roller is pressed against the top of the lower piece of timber to roll and apply glue. Then, the hydraulic cylinder is activated again to press the upper piece of timber down, gluing the two pieces of timber together, which facilitates a more secure bonding of the timber.

The utility model belongs to the technical field of woodworking glue production equipment, and particularly relates to a filling device of a reaction kettle for woodworking glue production, which comprises a bottom plate and further comprises a lifting mechanism mounted on the bottom plate, and a lifting plate is arranged on one side of the lifting mechanism; the rotating rod is rotationally connected to the lifting plate; the disc is coaxially and fixedly connected to the lower end of the rotating rod, filling mechanisms distributed in an array mode are arranged on the disc, each filling mechanism comprises a tank detachably arranged on the disc, a discharging hopper is integrally formed at the bottom of each tank, and the lower end of each discharging hopper communicates with a filling nozzle. The rotating rod is rotationally connected to the lifting plate, the disc is fixed to the lower end of the rotating rod, and the filling mechanisms distributed in an array mode are arranged on the disc, so that canning treatment of different raw materials can be achieved, rapid canning of the raw materials of the reaction kettle is achieved, and the problems that at the present stage, the canning mode of the reaction kettle for woodworking glue production is unreasonable, and efficiency is low are solved.

This application relates to the field of adhesives, specifically disclosing a highly weather-resistant, antibacterial, and environmentally friendly water-based wood adhesive and its preparation method. The adhesive comprises the following components by weight: 50-70 parts of a water-soluble antibacterial polyurethane-modified acrylic resin; 0.3-0.6 parts of a defoamer; 0.5-0.8 parts of a dispersant; 0.2-0.5 parts of a thickener; 5-8 parts of a cross-linking agent; 5-10 parts of a solvent; and 3-8 parts of microcapsules. This wood adhesive is environmentally friendly, exhibits strong adhesion, and offers long-lasting antibacterial and weather resistance, making it suitable for bonding outdoor wood products.

This invention belongs to the field of building restoration technology, specifically a method for restoring a wooden Manchurian window in a historical building. The method includes the following steps: preparing the necessary tools and materials; protectively removing the wooden Manchurian window as a whole; repairing the wooden Manchurian window; removing paint from the wooden Manchurian window sash; cleaning the surface of the wooden Manchurian window; applying two coats of preservative and two coats of insect repellent to the wood surface; repairing any defects in the appearance of the wooden Manchurian window; sealing the window structure before painting; painting the surface of the window structure; restoring the window structure; and installing the wooden Manchurian window. By using small steel nails and wood glue for fixing during the window structure restoration process, the window structure can be restored to its original appearance according to the original mortise and tenon joint design, better preserving its original historical features, improving the restoration quality and service life of the Manchurian window in the historical building, and addressing the problems of significant color differences between the old and new windows and unsatisfactory restoration results caused by large-scale demolition and reconstruction in traditional techniques.

The invention discloses a method for preparing a high-strength nano cellulose membrane and a wood formaldehyde-free adhesive by efficiently deconstructing a wood fiber raw material, and belongs to the field of clean separation and high-value utilization of the wood fiber raw material. The preparation method comprises the following steps: constructing a solvent system by adopting ethylene glycol and sodium sulfide, pretreating a lignin fiber raw material at 110-150 DEG C, carrying out solid-liquid separation, carrying out high-pressure homogenization and suction filtration on a solid material to prepare a nano cellulose membrane, and preparing a lignin formaldehyde-free adhesive from a liquid component. According to the method, a solvent system is constructed by adopting ethylene glycol and sodium sulfide, a large amount of lignin in the wood fiber raw material can be removed, most cellulose and hemicellulose are reserved in the lignin removal process, high-quality nano cellulose can be prepared from pretreated fibers, the tensile stress of the nano cellulose after film forming can reach 1.17 GPa, and the tensile strength of the nano cellulose can reach 1.17 GPa. The lignin obtained through separation can be used as wood glue for bonding plywood after being mixed with water, and the dry strength and the wet strength of the bonded plywood can reach 1.49 MPa and 1.17 MPa.

The utility model relates to the technical field of plywood production, and discloses environment-friendly vacuum pressurization curing termite-proof plywood production equipment which comprises a shell, material ports are formed in the two ends of the shell, and a conveying assembly is arranged in the shell. The size of the scraper blade is optimized to be wider than the conveying belt and smaller than the inner wall of the shell, a self-adaptive width gluing channel is formed, and the gluing requirements of wood of various widths are met. When the scraping plate transversely moves to scrape the sizing material, the redundant sizing material on the surface of the wood overflows towards the two sides and falls into the first guide frame and the second guide frame below. The first guiding frame and the second guiding frame are each of a funnel-shaped structure, and accumulated colloid is guided to the collecting frame through the guiding frames. In the subsequent recycling process, the glue in the collecting frame is poured into an external regeneration heating tank, the glue can be pumped into a heating glue box again for recycling, and the problems of glue waste and environmental pollution in a traditional process are solved through a gluing-strickling-recycling forming system.

The utility model discloses a wood-replacing adhesive fixing and clamping tool which comprises a clamping unit, the clamping unit comprises a base and two supporting screw rods, and the bottom ends of the two supporting screw rods are connected with the base in a sliding fit mode; each supporting screw rod is sleeved with a connecting plate, one end of each connecting plate is connected with a first pressing screw rod parallel to the corresponding supporting screw rod in a threaded fit mode, each supporting screw rod is connected with a first nut in a threaded fit mode, and the first nuts are located above the connecting plates. The device has the advantages that vertically downward pressing force can be applied to the wood substitute blank through the pressing screw, the wood substitute blank can be fixed in the bonding process, and the wood substitute blank is prevented from sliding and displacing in the wood substitute glue curing process. The wood substitute blank is evenly stressed, the thickness of the coated wood substitute glue can be controlled by controlling the progress of the pressing screw, materials can be saved, and the wood substitute glue can be evenly coated.

A wood gluing device comprises a bottom plate, supporting plates are vertically arranged at the two ends of a base, a supporting roller and a transmission roller are rotationally distributed between the two supporting plates, a gluing device and a removing assembly are arranged at the position, located above the transmission roller, between the two supporting plates, and the removing assembly can clean the gluing device. A third motor is arranged on the supporting plate on one side of the bottom plate and connected with the supporting roller. The gluing device comprises a gluing roller and an extrusion roller which are rotationally arranged between the two supporting plates, the extrusion roller is located on one side of the gluing roller, the first motor and the second motor are arranged on one supporting plate, and the first motor and the second motor are connected with the gluing roller and the extrusion roller respectively. According to the glue coating device, the cleaning assembly is arranged, glue on the glue coating roller can be scraped and collected, the labor intensity of manual cleaning is reduced, and waste of the glue is reduced.