1566 results about "Wood plank" patented technology

The invention provides a wood board surface defect detection method based on multi-view feature extraction, and the method comprises the steps: obtaining image data collected by a plurality of industrial cameras on a wood board production line, and obtaining an original image set; extracting local texture and edge information in the original image set through a lightweight convolutional neural network to obtain local features; modeling a global topological relation in the original image set through a sparse image attention mechanism to obtain global features; performing dynamic weighted fusion on the local features and the global features through a channel attention fusion module to obtain final features; and performing optimization training on the initial model through the final features and a pre-constructed loss function to obtain a defect detection model. According to the method, the lightweight convolutional neural network and the sparse graph attention mechanism are applied in parallel, and dynamic weighted fusion is performed on the features output by the two methods, so that the precision and efficiency of defect detection are improved.

A multi-surface spraying machine for furniture board surface treatment relates to the technical field of spraying equipment and comprises an integrated base, a spraying box body is fixedly connected to the integrated base, and a lifting material receiving assembly, a side surface spraying assembly, a rotating material moving assembly, a turnover surface changing assembly, a surface spraying assembly, a drying and curing assembly and a transferring and conveying assembly are arranged in the spraying box body; the lifting material receiving assembly comprises a steering disc, a supporting column barrel is fixedly connected to the steering disc, a positioning table is fixedly connected to the supporting column barrel, two L-shaped swing arms are arranged on the longitudinal outer wall of the same side of the positioning table in a swinging mode, and U-shaped swing arms are arranged on the transverse outer walls of the two sides of the positioning table in a swinging mode. A lifting telescopic cylinder is arranged in the supporting column barrel, and the upper portion of the lifting telescopic cylinder is fixedly connected with a material receiving supporting plate in a telescopic mode. The problems that in the surface spraying process of furniture boards in the prior art, labor dependence is low, the production efficiency is low, the spraying quality is unstable, material waste is serious, the equipment function is single, flexibility is insufficient, and the working procedure collaboration is poor are solved.

The invention belongs to the technical field of visual identification, and discloses a board surface defect detection method and system based on industrial vision, and the method comprises the steps: constructing a standard board reference library; acquiring raw material information and visual data of a to-be-detected wood board; selecting a plurality of board images from the reference library according to the to-be-detected board information to form a contrast image set; performing comparative analysis on the to-be-detected wood board image and the contrast image set to obtain an abnormal region; and monitoring an abnormal region, if the abnormal region is empty, judging that no defect exists, otherwise, extracting an abnormal region image and inputting the abnormal region image into a pre-trained classification model to identify a defect type. According to the method, a two-stage strategy of firstly positioning the abnormal area and then identifying the defect type is adopted, the abnormal area is positioned by comparing with a defect-free sample, and only defect identification is performed on the abnormal area, so that the problem that defect features are diluted in the whole image is avoided; the problems of high identification difficulty, low accuracy and the like caused by overlarge information amount of the whole image in the prior art are solved.

The invention relates to the field of laser detection, and discloses a shaving board processing-based surface flatness detection device which comprises a base, a plurality of conveying rods are arranged at the side part of the base, a wood board is placed on the conveying rods, a detection box is fixedly mounted at the top end of the base, and a laser detector is fixedly mounted in the center of the top of the detection box. The laser detector is used for detecting the flatness of the surface of the wood board, a detection auxiliary device is fixedly installed on the side portion of the base located on the lower portion of the detection box, and a grinding device is arranged on the detection auxiliary device; the two rollers in the detection auxiliary device clamp a wood board, the detection plate is leveled to make contact with the side face of the wood board, a half gear is driven to rotate when the wood board inclines, the half gear is meshed with teeth, the position of a lifting block is adjusted, and even if the edge of the wood board protrudes, the edge of the wood board does not protrude. The lifting block can still be adjusted to enable the board to be in a horizontal position, so that the detection precision of the laser detector is improved, and the influence of board inclination on the detection of the laser detector is reduced.

A device for a cot or child's bed to encourage sleep, comprising a support device to be placed in or under a mattress, comprising at least at least one plank, and at least one support, a lifting unit, wherein the lifting unit comprises at least one bladder, preferably at least two bladders, positioned between the at least one plank and the at least one support.The lifting unit further comprising a control unit, wherein the control unit is configured to inflate and / or deflate the at least one bladder via a pump of a pump system for providing an alternating upward and downward motion of the at least one plank, a pliable skirt extending at least outward from a circumference of the at least one plank.

The utility model relates to the technical field of writing tools, and discloses cutting equipment for wood processing, which comprises a clamping component, the clamping component comprises clamping bases, the clamping bases are fixed on two sides of a transverse moving component, the rear sides of the clamping bases are movably mounted with an upper clamping frame through movable connecting blocks, and the upper clamping frame is fixed on the clamping bases. The clamping base is connected with the front side of the upper clamping frame through a connecting mechanism, and the clamping assembly can be opened and closed through the connecting mechanism. By arranging the clamping assembly and adopting the connecting mechanism for opening and closing, the problem that a clamping plate is limited by the movement mode of a threaded rod can be solved, so that the operation convenience is improved, and the clamping bases are fixed to the two sides of the transverse moving assembly and movably installed on the upper clamping frame through the movable connecting blocks; and the clamping base is connected with the front side of the upper clamping frame through the connecting mechanism, so that the clamping assembly can be flexibly opened and closed, a wood board to be machined is more conveniently placed in the clamping assembly for machining operation, the working efficiency is improved, and inconvenience in operation is reduced.

The invention provides a wood board multi-axis linkage laser cutting machine based on a high-precision gear box, the wood board multi-axis linkage laser cutting machine based on the high-precision gear box comprises a frame composed of a bottom plate, a supporting rod and a top plate, the top plate is provided with a first guide rail and a laser cutting transmission mechanism, the bottom plate is provided with a smoke suction mechanism, and the smoke suction mechanism is provided with a second guide rail. The transmission mechanism comprises a plurality of driving motors, a high-precision gear reducer, a threaded rod and a guide rail combination, multi-axis linkage of X, Y and Z axes and laser head distances is achieved, the smoke suction mechanism rapidly collects smoke dust through a suction horn mouth, a multi-stage suction pipe and a negative pressure device, the high-precision gear reducer is matched with a chain wheel for transmission, transmission gaps are eliminated, and the smoke suction efficiency is improved. An eccentric guide rail and a threaded rod are finely adjusted, the cutting depth is accurately controlled, a heat dissipation through hole plate and an integrated fan maintain the temperature of a gearbox to be stable, and a plurality of suction horn mouths are combined with a negative pressure device, so that the working environment is effectively improved.

The invention discloses an intelligent wood board raw material hanging and conveying system for wood board bed production, and relates to the technical field of wood board conveying. The intelligent hanging and conveying system for the wood board raw materials produced by the wood board bed comprises a track body, and a lead screw is rotationally connected to the interior of the track body; the sliding seat is assembled on the track main body, and the sliding seat and the track main body are in a sliding connection state. According to the intelligent hanging and conveying system for the wood board raw materials produced by the wood board bed, when wood placed on a hanging frame is conveyed, a first rotating rod moves along with the wood and is matched with a fixed toothed bar, a gear, a first hydraulic bin, a first transmission rod, a second hydraulic bin, a first spring, a movable block, a first arc-shaped rod, a first stress rod and a second spring; and the friction wheel moves upwards to the bottom position of the track main body and makes contact with the track main body, so that friction speed reduction is conducted, and the stability of the device in use is improved.

A transfer conveying system for board edge sealing and surface changing relates to the technical field of board workshop conveying and comprises an edge sealing conveying assembly, a surface changing conveying assembly, a transfer distribution assembly and a rotary conveying assembly. The edge sealing conveying assembly comprises an outer conveying frame and an inner conveying frame which are arranged in parallel, the outer conveying frame and the inner conveying frame longitudinally extend, the tail ends of the outer conveying frame and the inner conveying frame are bent to the transverse direction, a plurality of longitudinal conveying rollers are rotationally installed on the longitudinal extending parts of the outer conveying frame and the inner conveying frame, and a plurality of transverse conveying rollers are rotationally installed on the transverse extending parts of the outer conveying frame and the inner conveying frame; a plurality of transition rotating rollers are rotationally mounted at the bent parts of the outer conveying frame and the inner conveying frame; the edge sealing conveying assembly further comprises a horizontally-arranged guide wheel, and a plurality of centrosymmetric steering guide rollers are rotationally installed on the lower surface of the guide wheel. The problems of process discretization, manual operation, low positioning precision, layout fragmentation and the like which exist for a long time in the workshop processing and conveying process of furniture manufacturing wood boards in the prior art are solved.

The utility model discloses a tool-replaceable and self-locking tool, which belongs to the technical field of wood board processing, and comprises a spindle sleeve connected with a motor spindle of a machine tool power head, and the end part of the spindle sleeve far away from the motor spindle of the machine tool power head is connected with a first R tool; the spindle sleeve is provided with a guide rod; the main shaft sleeve is provided with a position-adjustable middle cutter assembly; the outer wall of the middle cutter assembly is movably connected with a position-adjustable outer cutter assembly; a locking assembly is attached to the outer wall of the outer cutter assembly in a sliding connection mode, the locking assembly is movably connected with the middle cutter assembly and the outer cutter assembly, and the locking assembly is connected with the main shaft sleeve; the locking assembly, the middle cutter assembly and the outer cutter assembly are movably connected with the guide rod; by means of the mode, corresponding adjustment machining can be conveniently carried out according to needs, the functions are rich, the multi-production-specification requirement is met, and actual use is convenient.

The utility model relates to a progressive striking type high-frequency compaction assembly line. The progressive striking type high-frequency compaction assembly line comprises operation equipment and a bearing component, the operation equipment comprises a preheating part, a high-frequency hot-pressing part and a water-cooling cold-pressing wood striking part; the high-frequency hot-pressing part comprises a plurality of high-frequency hot-pressing machines, a moving roller way of each high-frequency hot-pressing machine extends from an internal hot-pressing station to inlets and outlets in the two sides to be exposed, and the adjacent exposed moving roller ways are in butt joint; the water-cooling cold-pressing wood striking part comprises a plurality of water-cooling cold-pressing machines, a movable roller way of each water-cooling cold-pressing machine extends and is exposed towards inlets and outlets in the two sides from an internal pressing station, and the adjacent exposed movable roller ways are in butt joint; the bearing component is a tray which is arranged below the wood board and used for bearing the wood board. According to the production line, the high-frequency hot-pressing part, the water-cooling cold-pressing wood striking part and the bearing component are used, on the premise that the thickness of a wood board is allowed to rebound, the technical problems that in the prior art, due to the fact that an upper pressing plate and a lower pressing plate are needed for clamping and pressure maintaining, operation is complex, and process step adjustment is limited in the production line circulation process are solved, and the rebound problem is solved.

The present invention discloses a system for retaining a piece of wood onto a saw mill in an orientation at an angle to the horizontal, such that horizontal cuts made to the wood result in shorter planks with full exposure of wood end grain, and further, a system for rotating a piece of wood on a saw mill in order to create lumber with specific polygonal cross sections; and methods for producing lumber from pieces of wood using said systems.

A stairway work platform for a user includes a plank, a first leg assembly attached in proximity to a first end of the plank. The work platform includes an end pad directly attached to the first end of the plank which prevents damage to a vertical rise area of the stairway. The work platform includes a first bottom pad directly attached to a front of a first leg of the first leg assembly which prevents damage to a horizontal run area of the stairway while supporting a weight of the user. The work platform includes a second bottom pad directly attached to a front of a second leg of the first leg assembly which prevents damage to the horizontal run area of the stairway while supporting the weight of the user. The work platform includes a hinge bracket attached to the plank in proximity to the first end of the plank and to the first leg of the first leg assembly. In a stairway mode, the first leg assembly is in the closed position and is adapted to be disposed on a stair of the stairway and a second leg assembly is extended to a position which makes the plank level with respect to ground. A method for using a work platform. An end pad. A side-bottom pad.

The manufacturing method of the laminated directional batten bearing type bamboo-wood composite material comprises the following steps: (1) preparing raw materials; the whole chordwise bamboo strip mat, the radial bamboo strip curtain, the directional battens and the wood veneers are prepared according to process requirements, and wear-resistant layer materials are selected. And (2) paving a plate blank. And paving the whole-piece wood veneer, the non-whole-piece wood veneer, the radial bamboo split curtain, the directional batten, the radial bamboo split curtain, the non-whole-piece wood veneer, the whole chordwise bamboo split mat and the wear-resistant layer in sequence from bottom to top. And (3) hot press molding. The hot press can be an intermittent single-layer hot press or an intermittent multi-layer hot press; the hot pressing mode is a'cold feeding-cold discharging 'hot pressing forming process, namely the procedures of'feeding, heating, heat preservation and hot pressing, cooling and pressure relief and discharging'; the hot pressing process is divided into three stages, namely pressure boosting, pressure maintaining and unloading, in the pressure maintaining stage, the unit pressure of a press is 1.5-8Mpa, and the temperature of a hot pressing plate is 140-220 DEG C. And (4) longitudinally and transversely cutting edges to be processed into specification materials. And the thickness is 15-40mm, the common breadth is 1220 * 2440mm, and a specific breadth can be made as required. The bamboo-wood composite board has the advantages that bamboo wood and wood are used as main raw materials, leftover materials obtained through wood processing are combined, the physical and mechanical properties of the product are better than those of natural wood boards or other wood-based artificial board materials, and the bamboo-wood composite board can be widely applied to vehicle and ship bottom boards, container bottom boards and boards in other load-bearing occasions.

The traditional Chinese medicine splint bending forming equipment based on the distal radius fracture comprises a bending forming tool and a temperature control system, the bending forming tool comprises a bottom plate for placing a wood plate for forming, a fixing assembly is arranged on the bottom plate, and a working assembly is arranged on the right side of the fixing assembly. The working assembly comprises a plurality of pairs of forming moving pieces distributed in the length direction of the wood board for forming at intervals, each pair of forming moving pieces is used for moving to make contact with the front side face and the rear side face of the wood board for forming correspondingly, and a heating assembly is arranged on the pair of forming moving pieces corresponding to the position, needing to be bent, of the wood board for forming. And the heating assembly is connected with the temperature control system. The multi-point forming principle is achieved through the multiple pairs of forming moving pieces, a temperature control system is additionally arranged, the forming precision and forming efficiency of the traditional Chinese medicine wood clamping plate are improved, clamping plates with different bending radiuses can be achieved through multi-point forming, and the traditional Chinese medicine wood clamping plate forming device is different from fixed-parameter clamping plates sold in the market and is worthy of popularization. And individual requirements of different patients can be met.

The invention relates to the technical field of wood board carrying, and discloses a material conveying mechanical arm for wood board production and processing and a using method thereof.The material conveying mechanical arm comprises a transferring mechanism, a supporting assembly is fixedly installed on the inner wall of the transferring mechanism, a driving assembly is installed on the side wall of the transferring mechanism, a second electric telescopic rod is started to stretch out, and an adsorption frame is pushed to descend; as the connecting plate is static, the connecting plate extrudes gas in the adsorption frame, negative pressure is generated at the bottom of the connecting plate until the adsorption frame drives the suction cup to make contact with the thin plate, the suction cup and the thin plate are attached, after attachment, the adsorption frame continues to move, the connecting plate makes contact with the protruding position of the first spring reset rod, and therefore the first spring reset rod is pushed to ascend; when the thin plate is conveyed, the blocking plate is driven to ascend, the blocking plate is separated from the suction cup, negative pressure at the bottom of the connecting plate enters the suction cup, the suction cup adsorbs the thin plate and flexibly clamps the thin plate, the situation that the thin plate is prone to deformation due to the fact that large extrusion force is applied to the thin plate is effectively prevented, and the integrity of thin plate conveying is guaranteed.

The invention belongs to the technical field of overwater drilling, and provides an overwater drilling operation platform which comprises a platform frame, a drilling station, a propulsion system station, a plurality of hydraulic cylinders, a plurality of hydraulic cylinders, a plurality of hydraulic cylinders, a plurality of hydraulic cylinders and a plurality of hydraulic cylinders. The platform frame is sequentially provided with a plurality of containing spaces in the same direction. The wood plate is laid on the top of the platform frame; the buoy is arranged in the containing space and fixedly connected with the platform frame, an annular space and a counterweight space are arranged in the buoy, and the annular space surrounds the exterior of the counterweight space; the buoyancy adjusting assembly is arranged in the annular space; the counterweight device is arranged in the counterweight space; the drilling machine is arranged at the drilling station; and the propelling system is arranged at the propelling system station. Through organic combination of the platform frame, the buoy, the buoyancy adjusting assembly, the counterweight device, the drilling machine, the propelling system and other parts, the functions of stable floating, flexible movement, accurate drilling, safe operation and the like of the platform are achieved.

The utility model relates to the technical field of wood processing, in particular to a positioning and drilling device for wood processing, which comprises a processing table, a clamping mechanism for fixing a wood board is arranged on the processing table, and a drilling mechanism for quickly positioning a drilling position is arranged on the processing table. By arranging the clamping mechanism, wood boards of different sizes can be clamped and fixed in the process of drilling the wood boards, the drilling stability is improved, a certain buffering effect is achieved in the process of fixing the wood boards, the wood boards can be clamped and fixed more stably, and by arranging the drilling mechanism, the drilling efficiency is improved. According to the wood board drilling device, in the drilling process of a wood board, different positions of the wood board can be drilled, so that the drilling efficiency of the wood board is improved, wood chips generated during drilling can be removed in time, the situation that the wood chips are accumulated on the wood board to affect the drilling quality is avoided, and the production and processing efficiency of the wood board is improved.

The disclosure relates to compositions including a constituent—A, which constituent—A consists of a polylysine component, a XL-component, and a fibrous component which fibrous component consists of at least one fibrous element which fibrous element includes vegetable fibers, and where the fibrous element is free of any fibers other than the vegetable fibers, where and the composition is free of any fibers other than the vegetable fibers of the fibrous component. The disclosure further relates to processes for obtaining an object from the compositions. The disclosure further relates to objects such as sheets, tapes, sticks, strips, films, cloths, containers, boards, panels, beams, frames, planks, engineered wood e.g. fibreboards obtained by said processes.

The invention discloses a marine plank tapping machine with an anti-locking function, which relates to the technical field of plank tapping machines and comprises a machine table, a lifting device, a driving motor, a positioning device and a tapping device. A piston plate is driven by a first electromagnet to move upwards, so that an upper cavity is pressurized, and a lower cavity forms negative pressure, on one hand, pressurized gas in the upper cavity is pressed and conveyed to a locking cavity, a sliding block is pushed to extend outwards, friction clamping is formed between the sliding block and the inner wall of a locking head, reliable locking of a fixed ring piece and a follow-up ring piece is achieved, and therefore the distance between drill rods is stably kept; hole diameter deviation caused by hole opening counter-acting force is avoided; and on the other hand, the negative pressure of the lower cavity is transmitted to the expansion cavity through the passage, so that the expansion cavity is continuously in a negative pressure state, the sliding plate is stably adsorbed and positioned above the drill rod sliding groove, and relative movement in the drilling process is restrained. The follow-up ring piece is driven by the electric telescopic rod, so that the multiple drill rods are synchronously unfolded or folded around the axis, and rapid adjustment and automatic matching of the hole diameter of a hole are achieved.

The invention relates to a mobile platform device for tunnel construction. The mobile platform device comprises a movable supporting platform, a movable operating platform, a chain block and a special extension ladder, the movable supporting platform is formed by splicing customized square steel pipes with holes through universal connecting holes, customized connecting pieces and customized supporting pieces, and four brake trundles with locking mechanisms are installed at the bottom of the movable supporting platform. The movable operation platform is suspended below the movable supporting platform through a chain block, an anti-skid supporting wood plate is laid on the surface of the movable operation platform, and protective railings are arranged on the periphery of the movable operation platform. And the special extension ladder is connected to the vertical upright post of the movable supporting platform. The platform can freely move to different operation points in a tunnel through the rollers, is matched with a lifting function to meet the construction requirements of different heights, and breaks through the space limitation of a traditional fixed platform. And meanwhile, the tedious steps of scaffold building and disassembling are omitted, the equipment carrying and site conversion time is shortened, operation is achieved when the scaffold is arrived, and the procedure connection period is shortened.

The invention provides board grooving automation equipment which comprises a supporting shell, a supporting control frame and grooving units, and the multiple grooving units are arranged above a conveying belt set and used for conducting grooving treatment on boards; the grooving unit comprises a fixing frame and a regulating and controlling assembly, the regulating and controlling assembly is arranged on the inner side of the fixing frame and movably connected with the fixing frame, a lifting rack is arranged above the fixing frame, the bottom of the lifting rack is in transmission connection with the fixing frame through a position adjusting assembly, and the top of the lifting rack is connected with a lifting assembly. According to the grooving width requirement, the positions of the grooving tool sets can be adjusted and locked through the adjusting and controlling assembly, grooving treatment of different widths is conducted through the different grooving tool sets, the grooving equipment is wide in application range, different grooving requirements can be met, the grooving efficiency of a wood board is improved, and the grooving efficiency of the wood board is improved. And the grooving cutter set is matched with the conveying belt set and the conveying unit to conduct automatic grooving on the wood board, and the grooving efficiency can be further improved.

The invention provides automatic wood slicing equipment, and relates to the technical field of wood board cutting, the automatic wood slicing equipment comprises a mechanical frame, and a servo cutter assembly, a double-servo feeding assembly and a buffer belt assembly which are sequentially arranged on the mechanical frame; the servo cutter assembly is arranged at the discharging end of the mechanical frame, the servo cutter assembly drives a cutter to do vertical linear reciprocating motion through rotation of a servo motor, meanwhile, the height position of the cutter is monitored in real time, and starting and stopping of the double-servo feeding assembly are controlled according to the position of the cutter. A multi-servo assembly is adopted for feeding / cutting, a servo motor drives a cutter assembly to linearly reciprocate up and down, a double-servo feeding assembly is adopted for feeding, two sets of high-precision servo motors drive two sets of feeding roller shafts to conduct clamping feeding and double-servo precise feeding on wood, the feeding precision can be controlled within the extremely small range, and the feeding efficiency is improved. And the size error of the cut wood board is greatly reduced, various high-precision machining scenes are met, and the product quality is improved.

The utility model is applicable to the technical field of cellular boards, and provides a stone-wood cellular board which comprises a cellular board body, the cellular board body comprises a cellular layer core board, a first side board and a second side board, the cellular layer core board is arranged between the first side board and the second side board, and a double-layer cellular structure is arranged in the cellular layer core board. The honeycomb plate is high in compression resistance and non-deformation capacity, the sound insulation capacity can be improved through the double-layer honeycomb structure, tree felling can be reduced, environmental protection and energy saving are achieved, damage to metal materials during cutting is reduced by matching with the solid wood plates arranged on the two sides, and the honeycomb plate has high application value.

The utility model relates to the technical field of press planer feeding, and discloses a woodworking press planer speed-adjustable automatic feeding device which comprises a fixing base, a placing table is installed at the top end of the fixing base, a planer tool installation hole is formed in the central axis position of the placing table, supporting plates are installed at the bottom ends of the two sides of the fixing base respectively, and the supporting plates are arranged on the fixing base. And electric telescopic rods are mounted at the top ends of the supporting plates. The gear is pulled upwards and rotates to drive the meshing toothed plates, so that the two toothed plates are far away from each other or close to each other, the distance between the two limiting guide plates and the distance between the correcting guide plates are adjusted, wood boards with different widths are limited and guided, cutting lines between the wood boards and the planer tool are prevented from inclining, and the planer tool is prevented from being damaged. And the special structure of the correction guide plate is used for conveniently correcting and guiding the movement of the planed board, so that the forward movement smoothness of the planed board is ensured, and the planed board is ensured to move stably.

The present invention discloses an uninterrupted automatic sanding production line, which includes a supporting plate-feeding hydraulic roller elevator, a sheet material automatic feeder, a first plate-feeding roller conveyor, a first sander, a second plate-feeding roller conveyor, a rotary flipping integrated machine, a second sander, an outboard roller conveyor, a sheet material receiver, a first hydraulic roller outboard elevator, a second outboard hydraulic roller elevator, and a servo control system for controlling the operating states of each device; the automatic feeder transfers the sheet material onto the first plate-feeding roller conveyor and transports it into the first sander, the second plate-feeding roller conveyor is used to transport the wooden board to the rotary flipping integrated machine, the rotary flipping integrated machine flips the sheet material and transports the flipped wooden board into the second sander, the second sander performs secondary sanding treatment on the other side of the sheet material, and the sheet material receiver is used to stack and level the sheet material and place the leveled sheet material on the first hydraulic roller outboard elevator.

The invention discloses a composite film for an SPC wood board and a preparation method of the composite film, and relates to the technical field of composite films. The composite film for the SPC wood board comprises the following raw materials in parts by weight: 40-50 parts of polyvinyl chloride, 20-30 parts of polyurethane, 10-15 parts of epoxy resin, 3-5 parts of nano silicon dioxide, 2-4 parts of an anti-ultraviolet agent, 5-8 parts of modified polyvinyl alcohol, 5-10 parts of modified polyacrylate, 0.5-1 part of an antibacterial agent, 3-5 parts of a plasticizer, 0.5-2 parts of an antioxidant and 0.5-2 parts of a lubricant. The composite film for the SPC wood board has remarkable advantages and excellent protection performance, the wear resistance is enhanced by the nano material, and scratch wear is reduced; the anti-ultraviolet agent and the special formula can effectively resist ultraviolet rays and moisture and prevent aging, color fading, deformation and mildewing; the antibacterial and antioxidant functions are achieved, the health of the use environment is guaranteed, and the service life of the composite film is prolonged; and the plasticizer and the lubricant improve the fluidity, the process is simple, large-scale production is facilitated, and the cost is reduced.

The utility model relates to an assembled floating body construction hoisting platform system for hydroelectric power generation, which is characterized in that a plurality of air bags are arranged, top beams are supported at the tops of the air bags, the top beams are connected through top beam connecting beams to form a frame structure of a platform frame, and arc-shaped structures used for being connected with the air bags are arranged at the bottoms of the top beams. The bottom of the top beam is provided with an arc-shaped structure used for being connected with an air bag, the end of the air bag is provided with an inflation device, wood beam supporting structures are evenly distributed on the top beam connecting beam, the wood beams are installed on the platform frame through the corresponding wood beam supporting structures, and the top beam, the top beam connecting beam and the wood beams are connected into a whole to form a wood plate bracket and a mortise fixing point. A plurality of adjustable stand columns are installed on the platform frame, hoisting equipment used for hoisting operation is arranged on the platform frame, and a cantilever crane or a portal crane of a single-column and single-arm structure can be adopted. The hoisting device can be well suitable for the overwater hoisting operation in shallow water areas, and can be used for hydroelectric power generation hoisting or other adaptive occasions.

The invention belongs to the technical field of stoving varnish door plates, and discloses a preparation process of a solid wood core stoving varnish door plate. The method comprises the following steps that polygonal solid wood strips are spliced into a solid wood plate blank, then hot press molding, double-face sanding and vacuumizing are conducted, then curing and sanding are conducted after the solid wood plate blank is soaked with a wood reinforcing agent, and a pretreated solid wood plate is obtained; and coating seal primer on the pretreated solid wood board, spraying white primer and grinding, spraying a layer of white primer and grinding, spraying three layers of finish paint, and finally spraying varnish and grinding, drying, polishing and sealing edges to obtain the solid wood core stoving varnish door board. The wood reinforcing agent is prepared from the hydrophilic nano silicon dioxide aerogel powder, the modified waterborne polyurethane dispersoid, the microencapsulated ammonium polyphosphate and other raw materials, and a synergist is introduced into a varnish layer, so that the hardness, cracking resistance, deformation resistance and fire resistance of a paint film are effectively improved. Therefore, the method has a wider application prospect.