1018results about "Wood veneer joining" patented technology

The invention discloses a polyurethane modified epoxy resin adhesive as well as a preparation method and application thereof, and the polyurethane modified epoxy resin adhesive is prepared from the following components in parts by mass: 7-10 parts of E51 type bisphenol A diglycidyl ether, 3.5 parts of a phenolic aldehyde amine T31 curing agent and 1-3 parts of synthetic polyurethane, the synthetic polyurethane is prepared from polyether triol, polyether amine, isophorone diisocyanate and glycerol carbonate, and a blending system of the synthetic polyurethane and bisphenol A diglycidyl ether is adopted to be subjected to covalent crosslinking with phenolic aldehyde amine T31, so that the adhesive has high toughness and strength guarantee; the synthetic polyurethane prepared by the method is obtained through simple, green and efficient solvent-free synthesis, and the synthesized product has certain fluidity at room temperature, so that the subsequent stirring preparation process of an adhesive is facilitated. And a solvent-free synthesis method is adopted, so that the use of a toxic organic solvent in the traditional polyurethane synthesis process is avoided, and the synthesis process is greener.

The utility model relates to a sliding type cabinet door skin attaching mechanism which comprises a machine frame, a gluing conveying table and a transferring table top located on the side of the gluing conveying table, a releasing cylinder hinged to the machine frame and used for winding a skin is arranged above the transferring table top, and a skin pressing roller is further arranged above the front side of the transferring table top. A gluing roller is further arranged on the lower surface of the skin between the skin pressing roller and the releasing roller, the upper portion of the gluing roller makes contact with the lower surface of the skin, a glue groove is formed in the lower portion of the gluing roller, and a top roller which is matched with the gluing roller and used for clamping the skin to make the skin make full contact with the gluing roller is further arranged on the upper portion of the gluing roller; a plurality of conveying rollers used for conveying plates are arranged below the position, corresponding to the skin pressing rollers, of the transfer table top. According to the utility model, the coating roller and the coating compression roller are used for coating the coating and bonding the coating with the plate, and the coating compression roller is matched with the conveying roller to realize the smooth coating, so that the production efficiency is greatly improved.

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 invention discloses a flexible plain-color triamine film and a preparation method thereof, and the preparation method comprises the following steps: 1) coating the back surface of plain-color decorative paper with a back coating liquid, and drying to form a back coating layer, the back coating liquid at least comprising titanium dioxide and an acrylic emulsion; 2) dipping in a urea-formaldehyde resin dipping solution, and drying to form a covering layer surrounding the film material in the step 1); (3) coating the double surfaces with amine-aldehyde resin, and drying to form shielding layers at least covering the front surface and the back surface of the film material in the step (2); and (4) a non-woven fabric substrate is laid on the outer side of the shielding layer on the same side as the back coating, then a concave-convex surface is formed through coining, the coining depth does not exceed the shielding layer, the prepared flexible plain-color triamine film has excellent covering power, triamine facing on the surface of the fast-growing wood plywood is successfully achieved, and the service life of the fast-growing wood plywood is prolonged. The invention further discloses the plain-color ecological board containing the flexible plain-color triamine film and a preparation method of the plain-color ecological board.

The invention discloses a formaldehyde-free composite board for a cabinet and a preparation method of the formaldehyde-free composite board, and relates to the technical field of artificial board manufacturing. The preparation method of the formaldehyde-free composite board for the cabinet comprises the following steps: mixing high amylose with a choline chloride / urea deep eutectic solution, stirring, adding concentrated hydrochloric acid for reaction, adjusting the pH value, and adding ammonium persulfate to obtain pretreated oxidized starch; methacrylic acid dehydrated glyceride is added into the pretreated oxidized starch for a grafting reaction, then modified polyvinyl alcohol is added for blending, sodium metaphosphate is added for crosslinking, finally, heating and curing are conducted, modified titanium dioxide nanoparticles are added, and the formaldehyde-free starch adhesive is obtained. The wood shavings and the formaldehyde-free starch adhesive are mixed, and a core material is obtained; and arranging the core material between the formaldehyde-free veneers, and carrying out hot press molding to obtain the formaldehyde-free composite board. The formaldehyde-free composite board for the cabinet has excellent mechanical strength, bonding performance and water resistance.

The invention provides a preparation method of a stable-size and high-strength laminated timber, which comprises the following steps of: mixing boric acid and choline chloride, and heating and melting at 90 DEG C to form a uniform, stable and transparent liquid, so as to obtain a deep eutectic solvent DES; the preparation method comprises the following steps: under the vacuum degree of-0.1 MPa, dipping wood veneers in DES, performing high-temperature steam sterilization treatment under the condition of 121 DEG C, assembling the veneers subjected to multi-layer treatment according to a rift-grain mode, and performing hot pressing at 160 DEG C to obtain the laminated timber with stable size and high strength. The prepared laminated timber has dimensional stability and good mechanical properties, has structural applicability of direct contact with a moisture environment, and has the advantages of mildew resistance, corrosion resistance, flame retardance and the like.

A bamboo-based wood-plastic composite material manufacturing process has the following steps: S1, a bamboo processing step; S2, a bamboo core pretreatment step; S3, a wood-plastic composite material raw material preparation step; S4, a wood-plastic composite material hot processing step; S5, a bamboo blank processing step; S6, a wood-plastic composite material blank covering bamboo blank step; S7, a cooling and shaping step. The present application solves the problems of high density, high cost, brittleness and insufficient toughness of the existing wood-plastic composite material based on thermoplastic polymer, realizes the use of bamboo instead of plastic and solves the problem of recycling of waste plastic which is difficult to reuse. The present application can overcome the shortcomings of the prior art, be used for preparing a more practical and durable wood-plastic composite material which still has good mechanical properties after heating and forming. The present application also provides a product prepared by the bamboo-based wood-plastic composite material manufacturing process.

The invention discloses a preparation method for plasticizing and forming a flexible thin bamboo veneer, and belongs to the technical field of processing and application of biomass materials. The method comprises the following steps: soaking a thin bamboo veneer in a polyethylene glycol solution, and drying to obtain a polyethylene glycol impregnated material; uniformly coating the surface of the polyethylene glycol impregnated material with a silane coupling agent, and drying to obtain a coupling agent modified thin bamboo veneer; and hot-pressing and compounding the modified thin bamboo veneer and a hot melt adhesive to obtain the thin bamboo veneer composite material. Through pretreatment of the thin bamboo veneer and process optimization of hot-pressing compounding of the thin bamboo veneer and the degradable material, the tensile elastic modulus reaches 6654.41 N / mm < 2 >, the transverse flexibility and the water resistance are remarkably improved, and the application field of the thin bamboo veneer is expanded.

The invention discloses a method and system for preparing a composite board through continuous pressing of straw and waste textiles, and relates to the technical field of waste utilization, the system comprises a straw preparation unit, a waste spinning preparation unit, a mixed paving forming unit and a continuous flat pressing type hot press which are connected in sequence, and control is achieved through a control unit. The method comprises the following steps: carrying out chopping, fiber tearing and drying treatment on straws, and carrying out fiber regeneration treatment on waste textiles; mixing the two materials with an adhesive in proportion, and paving to form a three-layer blank; and sequentially carrying out pre-pressing, segmented hot-pressing curing, cutting, stack cooling and sanding packaging to obtain a finished product of the composite board. According to the method, resource utilization of the straw and the waste textiles is achieved, and the produced composite board is excellent in physical and mechanical property, high in production efficiency and suitable for large-scale production.

The invention belongs to the technical field of wood adhesives, and particularly relates to preparation of a starch-based full-biomass green adhesive with high adhesive strength and hot water soaking resistance and application of the starch-based full-biomass green adhesive in wood processing. The method comprises the following steps: preparing a starch-based adhesive from high amylose and tannic acid, treating the surface of wood by using KH560, coating a wood board with the starch-based adhesive, pressing and drying to obtain the plywood. Even if the plywood is soaked in water of 30 DEG C or hot water of 60 DEG C for 3 hours, the plywood does not have glue failure, the shearing strength is higher than 1.0 MPa when the plywood is torn, and the use requirements of national standard II-type plywood are met.

The invention discloses an oriented structural plate for a container bottom plate and a preparation method of the oriented structural plate. According to the method, fast-growing tree species wood is selected as a preparation raw material, and the preparation raw material is processed in a rotary cutting and slicing shaving mode; the wood shavings-shaped raw materials are dried; carrying out low-temperature plasma treatment on the dried shavings-shaped raw materials obtained by adopting the rotary cutting mode; selecting five layers of equal-proportion shaving-shaped raw materials, and carrying out sizing and directional paving to obtain shaving board blanks; the shaving board blank is subjected to three-section type long-time hot pressing treatment, and an oriented structural board with the thickness ranging from 15 mm to 18 mm is obtained; standing and storing the oriented structural plate subjected to hot pressing in a specified environment for specified time; according to the oriented structural plate for the container bottom plate and the preparation method of the oriented structural plate, the rotary-cut and sliced wood shaving layers are obtained in a wood shaving mode, the wood shaving layers are subjected to special drying, sizing and assembly structural design, and it is guaranteed that the plate has excellent bending resistance and is stable in size.

The utility model relates to the technical field of plate pressing machines, and provides a positive plate pressing machine convenient for pressing, which comprises a fixed base, and a push plate frame I is arranged on the outer side wall of the fixed base; the pressing mechanism comprises an adjusting frame, the adjusting frame is installed at the top end of the fixed base, a separating plate is installed at one end of the middle of the adjusting frame, a second motor is installed on the outer side of the middle of the adjusting frame, the output end of the second motor is fixedly connected with a reticulate pattern gluing steel roller, and a glue storage tank is installed on the outer side wall of the adjusting frame; a glue outlet of the glue storage tank is connected with the reticulated gluing steel roller through a guide pipe; the bottom of the upper end plate of the reticulate pattern gluing steel roller is matched with the discharging ports in the upper end and the lower end for gluing, adhesion between the upper plate and the lower plate can be facilitated, adhesion is carried out after gluing is completed, and the bonding efficiency of glue can reach the highest; and glue on the upper plate can be prevented from being adhered to other places in the descending process.

A structure can be formed by wrapping one or more densified, lignin-compromised wood veneers wrapped around a central axis. The wrapped wood veneers can form a circumferentially-extending wood wall. A glue can be provided on one or more surface portions of each wood veneer. The wood veneers can be lignin-compromised by in situ lignin modification, partial delignification, or full delignification. The circumferentially-extending wood wall can form a hollow member, for example, a tube, pipe, cup, tank, or bottle. Alternatively, the circumferentially-extending wood wall can surround a central member, for example, to form a rod, bat, club, or dowel.

The invention discloses a multi-layer hot press with a push-pull structure. The multi-layer hot press comprises a hot pressing assembly and a push-pull assembly, the feeding assembly comprises a feeding area and a plate pushing machine, the number of the feeding area is matched with that of the containing layers of the hot pressing assembly, and the plate pushing machine is arranged in a sliding mode in the first direction and can drive a plate pushing handle to make contact with and push a bearing base plate in the feeding area; the discharging assembly comprises a discharging area and a plate pulling machine, the discharging area and the feeding area are symmetrically arranged relative to the hot-pressing assembly in the first direction, the plate pulling machine is arranged in a sliding mode in the first direction and comprises a plate pulling touch hand facing the hot-pressing assembly, and the plate pulling touch hand can be connected with one side of the bearing base plate in a locking mode; through the arrangement of the plate pushing machine and the plate pulling machine on the two sides of the hot pressing assembly, the conveying difficulty of the bearing base plate is reduced, the operation efficiency of the hot press can be improved through simultaneous movement of the two sides, and the production cost is reduced.

The utility model discloses a high-strength anti-collision plywood, and relates to the technical field of plywood, in particular to the high-strength anti-collision plywood which comprises two outer panels, a supporting sleeve fixedly supported between the two outer panels, a supporting frame fixedly supported between the two outer panels, a PP framework fixedly sleeved with the supporting frame, and an outer panel fixedly sleeved with the PP framework. Supporting edge blocks which are attached to each other are fixedly supported between the two outer panels. According to the high-strength anti-collision plywood, the two outer panels are arranged, the supporting frame is fixedly arranged between the two outer panels in a sleeving mode, and meanwhile the latticed PP framework is fixedly arranged on the inner side of the supporting frame in a sleeving mode, so that the whole plywood can be effectively and stably supported, and deformation caused by large external force is avoided; meanwhile, the supporting edge blocks supported between the two outer panels on the inner side of the PP framework can effectively buffer impact force of points, the plywood is prevented from being directly punctured, the plywood has certain impact resistance, and meanwhile the overall weight is effectively reduced.

The present disclosure provides a board material and a preparation method thereof. The board material of the present disclosure includes: an inorganic board, the inorganic board includes a plant fiber and an inorganic material, in which the mass ratio of the inorganic material to the plant fiber ranges from 1.2 to 1.5; the raw material components of the inorganic material include a magnesium sulfate, a magnesium oxide, a magnesium chloride and a modifier, the mass ratio of the magnesium sulfate to the magnesium oxide ranges from 0.4 to 0.5; the mass ratio of magnesium chloride to magnesium oxide ranges from 0.05 to 0.15; the mass ratio of the modifier to the magnesium chloride ranges from 0.025 to 0.045; the 24 h water-absorbing thickness swelling of the inorganic board is less than or equal to 3%.

The application discloses an environment-friendly composite pear-wood floor processing device and a production method thereof, and relates to the technical field of wood floor processing, in particular to an environment-friendly composite pear-wood floor processing device. The environment-friendly composite pear-wood floor processing device comprises a bottom supporting block, a supporting frame is fixedly installed above the bottom supporting block, a hydraulic mechanism is fixedly installed on the top surface of the supporting frame, a pressing block is fixedly connected to the bottom end of the output shaft of the hydraulic mechanism, and a fixed limiting block is fixedly installed on the left side and the right side of the top surface of the bottom supporting block. The rear limiting block and the front limiting block can be limited through the cooperation of the movable limiting sleeve and the telescopic column, the front limiting block, the rear limiting block and the two fixed limiting blocks are limited, the superposition state is maintained during the pressing process of the wood layers, the subsequent cutting is avoided, the strength of the pressed floor is effectively ensured, and the quality of the product is improved.

A method for forming an engineered veneer block includes stacking a plurality of laminate layers. The method also includes spreading a bonding agent between each layer of the plurality of laminate layers. The bonding agent includes an adhesive. The adhesive consists essentially of one or more no added formaldehyde adhesives. The method also includes slicing an engineered veneer from the engineered veneer block. The engineered veneer has a thickness in the range of 0.1 millimeters to 0.5 millimeters.

The utility model relates to the technical field of edge covering dies, and discloses a fast integral edge covering die for multilayer materials, which solves the problems that the existing edge covering die is inconvenient to automatically position the multilayer materials and is low in working efficiency, and comprises a material positioning and placing table, and edge covering mechanisms are arranged on four side edges of the material positioning and placing table. The material positioning and placing table is composed of a supporting table base, a first servo motor, a rotary driving disc, a plurality of driving connecting rods and a plurality of positioning assemblies, the first servo motor is connected to the middle position of the bottom end of the supporting table base, and the rotary driving disc is located in the middle position of the bottom end in the supporting table base; the driving connecting rod is rotationally connected between the rotary driving disc and the positioning assembly. The edge covering mechanism is composed of a supporting assembly and an edge folding and covering assembly. By means of the edge covering die, rapid and automatic positioning of the multi-layer material can be achieved, the edge covering precision is improved, meanwhile, edge covering operation can be conducted on the four side edges of the multi-layer material at the same time, and the edge covering efficiency is improved.

The application provides a PET sandwich composite wood grain plate and a preparation process thereof, and has a surface micro-crease structure, comprises a primer and a topcoat, and the polymerizable monomers, namely, vinyl benzimidazole and vinyl imidazole, in the topcoat have photosensitive groups, namely, benzimidazole and imidazole, can synergize with a photoinitiator, promote the generation and transmission of free radicals under the action of UV light, increase the free radical concentration, can strengthen the UV energy gradient change from the topcoat to the primer, increase the micro-crease size, promote the diffuse reflection of light on the surface layer, reduce the gloss, and improve the scratch resistance and hardness.

The utility model discloses an ecological board surface spraying structure, and particularly relates to the technical field of ecological boards, wood fibers or other natural fibers are mixed with resin to form the ecological board surface spraying structure, the ecological board surface spraying structure has good strength and durability after being pressed, mineral filler is filled in a fiber board layer, the hardness, the pressure resistance and the abrasion resistance of the board are improved, and the ecological board surface spraying structure is more environment-friendly. The reinforcing layers are located on the two sides of the fiberboard layer, each reinforcing layer comprises a hot melt adhesive film, a UV coating and a polymer plastic board layer and is used for improving the structural strength and the overall stability, the waterproof layer comprises a polypropylene coating, a PU coating and a polyurethane coating, the waterproof performance is effectively improved, water is prevented from invading the fiberboard layer, and the bending resistance of the board is enhanced through the reinforcing layers; the waterproof layer effectively prolongs the service life of the ecological board, protects the ecological board from being influenced by a humid environment, keeps the functions of the ecological board unchanged for a long time, and comprehensively applies a coating technology, so that the ecological board meets higher requirements in the aspects of strength, durability and waterproof performance.

The utility model discloses an anti-static plywood and furniture, the anti-static plywood comprises a plywood body, the upper surface of the plywood body is provided with a groove, and the bottom wall of the groove is provided with an equipment positioning groove; the wireless charging module is arranged in the board body and located under the equipment positioning groove; and the covering part has a covering state and a non-covering state, when the covering part is in the covering state, the covering part covers a notch in the upper side of the groove, and a containing space capable of containing equipment is formed between the lower plate face of the covering part and the bottom wall of the equipment positioning groove. According to the anti-static plywood, related equipment can be placed in the equipment positioning groove to be positioned, the risk that the equipment slides freely and falls off is reduced, and the equipment can be a mobile phone, an intelligent watch, an intelligent earphone, an intelligent ring and the like. And after the equipment is placed in the equipment positioning groove, the risk that the equipment is pushed at will and falls off is reduced.

The application discloses a long-acting fragrance essential oil microcapsule veneer artificial board and a preparation method thereof, and comprises a core board, both sides of the core board are provided with surface layer single boards with holes, the surface of the surface layer single boards with holes is sequentially provided with a surface layer thin single board and an impregnated glue film paper; a plurality of waist-shaped through holes are arranged on the surface layer single boards with holes, and the waist-shaped through holes are filled with essential oil microcapsule composite fillers; the essential oil microcapsule composite fillers comprise essential oil microcapsules, putty powder, wood fibers and melamine urea-formaldehyde resin glue; and the essential oil microcapsules comprise single-layer coated microcapsules and double-layer coated microcapsules. The essential oil microcapsules are carried by means of the waist-shaped holes arranged on the surface layer single boards, so that the problem that the adding amount of the microcapsules cannot be improved is solved; and the single-layer and multi-layer microcapsules are simultaneously added, so that the damage of the temperature and pressure in the hot-pressing forming process to the microcapsules is avoided, the long-acting and slow-releasing effect of the fragrance can be realized, and the doped odor generated by the VOC release of the board itself is inhibited.

The utility model discloses a bamboo chip multi-layer hot-press shaping device which comprises a supporting press-fit device and a positioning adjusting device, the positioning adjusting device is arranged on the supporting press-fit device, the supporting press-fit device comprises a supporting main frame, the two ends of the supporting main frame are fixedly connected with limiting frames respectively, and the limiting frames are arranged on the supporting main frame. A two-way threaded rod is arranged on the inner side of the limiting frame, two positioning sliding blocks are symmetrically connected to the two-way threaded rod in a threaded mode, the positioning adjusting device comprises a supporting bottom plate and a bamboo chip, and two side edge positioning plates are symmetrically and movably connected to the top end of the supporting bottom plate. Through the linkage design of the two-way threaded rod and the positioning sliding block in the supporting and pressing device, precise adjustment of the pressing width is achieved in cooperation with scale marks on the limiting frame, the bamboo chip stacking and positioning precision and efficiency are improved, the positioning and adjusting device is of a side edge positioning plate and threaded rod combined structure, the limiting sliding rod is combined for guiding, and the positioning and adjusting device is simple in structure and convenient to use. And it is ensured that the bamboo chips are stable in position and convenient to discharge in the pressing process.

The utility model relates to the technical field of furniture board processing equipment, and discloses a furniture board glue pressing device which comprises a device shell and a conveying roller, the device shell comprises hydraulic cylinders, a lifting frame and a pressing roller, the two sets of hydraulic cylinders are symmetrically arranged at the two ends of the top of the device shell, the lifting frame is arranged at the telescopic ends of the two sets of hydraulic cylinders, and the pressing roller is arranged on the conveying roller. The pressure applying roller is arranged in the lifting frame, and the conveying roller comprises a first servo motor, a first power roller, a second power roller and a chain wheel transmission mechanism. A plate can be supported and conveyed through the conveying rollers, the first power roller and the second power roller can synchronously move through the first servo motor and the chain wheel transmission mechanism, the plate can be actively conveyed back and forth, and pressure can be conveniently applied to the plate back and forth; and the two sets of adjusting frames can be oppositely adjusted through a second servo motor, a two-way screw and a movable rod, the plate can be limited through a guide roller, and the plate can be prevented from deviating during conveying.

The utility model relates to the technical field of presser plate machine, disclose a kind of presser plate mechanism for wood industry processing, including base, the top surface both sides of base are fixedly connected with vertical board, vertical board is fixedly connected with cylinder, the piston rod of cylinder is fixedly connected with seat shifter, the bottom both sides of seat shifter are slidably connected with slide rail, the slide rail is fixedly installed on the base, the top of seat shifter is fixedly connected with support, two hydraulic buffers are fixedly connected on the support, the piston rod end portion of hydraulic buffer is fixedly installed with top plate, the top surface of top plate is fixedly connected with rubber seat, spring is sleeved on the hydraulic buffer, the spring is arranged between the top plate and the support.The utility model utilizes energy-absorbing anti-falling structure to avoid equipment failure to cause presser plate to directly hit base, so when personnel is on base unloading operation, avoid to cause damage to person, improve the use safety of equipment.

The invention discloses a formaldehyde-free environment-friendly multi-layer solid wood composite floor and a preparation method thereof.The formaldehyde-free environment-friendly multi-layer solid wood composite floor comprises a balance solid wood layer, a functional solid wood layer and a wear-resistant solid wood layer which are sequentially arranged from bottom to top; central areas among the balancing solid wood layer, the functional solid wood layer and the wear-resistant solid wood layer are formed by hot pressing of non-formaldehyde glue, and edge parts are formed by connecting of self-locking structures; first grid grooves are formed in the center area of the upper surface of the balance solid wood layer, a plurality of first pressing blocks corresponding to the first grid grooves are arranged on the lower surface of the functional solid wood layer, second grid grooves are formed in the center area of the upper surface of the functional solid wood layer, and a plurality of second pressing blocks corresponding to the second grid grooves are arranged on the lower surface of the wear-resistant solid wood layer. On the basis of ensuring the connecting strength of the floor, the floor has the characteristics that the glue consumption is reduced and the floor is more environment-friendly.

The utility model relates to the technical field of fireproof door processing, and discloses a cold-pressing gluing device for a wooden heat-insulation fireproof door, which is characterized in that a groove matched with a fireproof door frame in size is formed in the upper surface of a lower die, so that the fireproof door frame can be positioned in the cold-pressing process, and the fireproof door frame is prevented from being damaged. Therefore, the shape and the size of the fireproof door frame filled with the flame-retardant material are prevented from being changed in the cold pressing process. In addition, through holes are formed in the bottoms of the grooves, flame-retardant materials are injected into the filling cavity of the fireproof door through the through holes, and the situation that air is mixed into the flame-retardant materials to form gaps, and the filling effect is affected can be avoided. And meanwhile, flame-retardant materials can be injected into the multiple fireproof door filling cavities through the through holes at the same time, so that the flame-retardant materials in the fireproof door filling cavities can be uniformly diffused, the filling uniformity of the flame-retardant materials is ensured, and the flame-retardant materials are prevented from sputtering. The two steps of filling and cold pressing can be continuously carried out, equipment does not need to be replaced, and therefore the production quality and efficiency are improved.

The utility model discloses an automatic door plate pressing device which comprises a base, a rotating table is rotationally connected to the upper portion of the base, a rotating ring is welded to the bottom face of the rotating table, a gear ring is fixedly connected to the inner wall of the rotating ring, a limiting groove for the rotating ring to rotate is formed in the top face of the base, and a servo motor is arranged in the base. According to the utility model, the feeding plate is pushed by the first servo electric cylinder, so that the door plate can be accurately pushed to the feeding station from the placing position, then the door plate is driven to the lower part of the pressing plate by the rotation of the rotating table, and the pressing plate is pushed by the second servo electric cylinder to press the door plate, so that the pressing process is stable and accurate, and after the pressing is finished, the door plate can be accurately pressed. When the door plate is pressed, the rotating table drives the door plate to a discharging station, the third servo electric cylinder pushes the discharging plate to push down the pressed door plate, the whole process automation of automatic feeding, pressing and discharging is achieved, manual intervention is greatly reduced, and the production efficiency and the stability of product quality are improved.