Straw wood plastic composite board and its preparation method, curing production equipment and application

Abstract

The invention provides a straw wood plastic composite board, which relates to the technical field of building materials. The board is composed of a base layer, an intermediate bonding layer, and a surface layer. The base layer is a cured concrete board, and the weight ratio of each component is: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of gravel, 90-120 parts of mineral powder, 5-10 parts of water reducer, and 110-120 parts of water. The intermediate bonding layer is a structural adhesive, which is applied between the base layer and the surface layer. The surface layer is a straw wood plastic composite board, and the weight ratio of each component is: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder, and 1-2 parts of plasticizer. The board with concrete as the base layer and the wood composite layer as the surface layer has a real wood texture on the surface layer, is not easily deformed as a whole, saves raw wood, and is suitable for mass production. At the same time, the invention also provides a preparation method, curing production equipment, and application of the straw wood plastic composite board.

Description

Technical Field

[0001] The invention relates to the technical field of building materials, and in particular to a straw-wood-plastic composite board and a preparation method, curing production equipment and application thereof. Background Art

[0002] Straw is the general term for the stems and leaves (ears) of mature crops, usually referring to the remaining parts of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops after harvesting seeds. More than half of the products of crop photosynthesis are present in straw. Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, and is a multi-purpose renewable biological resource.

[0003] In the existing decoration process, with the improvement of people's living standards, floor tiles are usually laid in the living room. The floor tiles are roughly divided into three categories. The first is a wooden original wood board tile that is truly trimmed from a whole piece of log. The advantages are clear texture and good quality. The disadvantages are that a large amount of logs are required, the cost is high, and it is not suitable for the current development needs of energy conservation and emission reduction. The second is solid wood plywood tiles. This type of brick is pressed and formed by wood powder and various adhesives. Its biggest disadvantage is that it warps and deforms when it comes into contact with water, and its stability is not strong. The third is artificial imitation wood board tiles. Ordinary building materials are made into brick shapes, and then the surface is painted with imitation wood paint. After long-term use, this type of floor tile loses its original luster and does not reflect the authenticity or high-end feeling of wood. Therefore, this application provides a new method and idea for how to make full use of a large amount of inexpensive and abundant straw resources to prepare a wood-plastic composite board. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a straw wood-plastic composite board, which has concrete as the base layer and a wood composite layer as the surface layer, so that the surface layer presents a real wood texture and is not easy to deform, saves raw wood, and is suitable for mass production.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a straw-wood-plastic composite board, which is composed of a three-layer structure of a base layer, an intermediate bonding layer, and a surface layer bonded by pressing;

[0006] The base layer is a cured concrete slab, which is formed by uniformly mixing the following components and curing them through a mold, wherein the weight ratio of each component is: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of gravel, 90-120 parts of mineral powder, 5-10 parts of water reducer, and 110-120 parts of water;

[0007] The intermediate bonding layer is a structural adhesive, which is coated between the base layer and the surface layer to play a bonding role;

[0008] The surface layer is a straw wood-plastic composite board, which is formed into a wooden thin board by evenly mixing the following components and then calendering. The weight ratio of each component is: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder, and 1-2 parts of plasticizer.

[0009] Further, it is composed of a three-layer structure of a base layer, an intermediate bonding layer, and a surface layer bonded by pressing;

[0010] The base layer is a cured concrete slab, which is formed by mixing the following components evenly and curing them through a mold, wherein the weight ratio of each component is: 28 parts of cement, 82 parts of sand, 98 parts of gravel, 110 parts of mineral powder, 8 parts of water reducer, and 115 parts of water;

[0011] The intermediate bonding layer is a structural adhesive, which is coated between the base layer and the surface layer to play a bonding role;

[0012] The surface layer is a straw wood-plastic composite board, which is formed into a wooden thin board by evenly mixing the following components and then calendering. The weight ratio of each component is: 22 parts of straw powder, 20 parts of log composite powder, 1.5 parts of natural resin, 65 parts of high-density polyethylene, 1.5 parts of nano zinc oxide powder, and 1.5 parts of plasticizer.

[0013] Furthermore, the cement grade is 42.5.

[0014] Furthermore, the mineral powder is slag powder.

[0015] Furthermore, the water reducer is a polycarboxylic acid high-performance water reducer, the solid content of the water reducer is not less than 20%, and the water reduction rate is not less than 25%.

[0016] Furthermore, the structural adhesive can be BD811 high-strength structural adhesive produced by Xiangfan Lianji Adhesive Factory, and components A and B are mixed evenly at a mass ratio of A:B=4:1 or a volume ratio of 3:1 before use.

[0017] Furthermore, the sand particle size is <2 mm, and the gravel particle size is 4 to 15 mm.

[0018] Furthermore, the straw is one or more of wheat, rice, and corn stalks, which are washed, dried, and crushed into straw powder. Among the straw powder, 30%-40% have a particle size of 0.3-0.5 mm, and 60%-70% have a particle size of <0.3 mm.

[0019] Furthermore, the log composite powder is prepared by mixing, crushing, fine grinding and screening in the following proportions: 60% to 70% high-density polyethylene and 30% to 40% log powder by weight, and the log composite powder with a particle size of 0.1 to 0.3 mm is prepared; wherein the log powder is one or more of elm, birch, walnut, locust, crabapple, beech, cherry, longan and camphor, all of which are log processing residues, including scraps, shavings, sawdust, etc., and the log powder is formed after being crushed and dried.

[0020] In a second aspect, the present invention also provides a method for preparing a straw-wood-plastic composite board, comprising the following steps:

[0021] S1. Base forming: The base is a cured concrete slab, which is formed by mixing the following components evenly and curing them into a concrete slab through a mold, wherein the weight ratio of each component is: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of gravel, 90-120 parts of mineral powder, 5-10 parts of water reducer, and 110-120 parts of water;

[0022] S2. Preparation of the intermediate bonding layer: The intermediate bonding layer is a structural adhesive. The components A and B of the structural adhesive are mixed evenly at a mass ratio of A:B=4:1 or a volume ratio of 3:1 and set aside;

[0023] S3, surface forming: the surface layer is a straw wood plastic composite board, which is formed into a wood thin board by calendering after the following components are evenly mixed, and the weight ratio of each component is: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder, and 1-2 parts of plasticizer; 0.8-2mm thick straw wood plastic composite board is formed by calendering, wherein the calendering forming temperature is 220-280℃, the forming pressure is 400-500MPa, the heat preservation and pressure holding time is 15-30min, and the cooling medium is liquid nitrogen;

[0024] S4, board bonding and pressing: clean the bonding and pressing surfaces of the concrete board and the straw-wood-plastic composite board respectively, and then preheat the bonding and pressing surfaces by steam at 30-50°C, evenly apply the structural adhesive in S2 on the joint surfaces of the concrete board and the straw-wood-plastic composite board, and then bond and solidify the concrete board and the straw-wood-plastic composite board under slight pressure to obtain the straw-wood-plastic composite board.

[0025] Furthermore, the straw is one or more of wheat, rice, and corn stalks, which are washed, dried, and crushed into straw powder, of which 30%-40% have a particle size of 0.3-0.5 mm and 60%-70% have a particle size of <0.3 mm.

[0026] Furthermore, the log composite powder is prepared by mixing, crushing, fine grinding and screening in the following proportions: 60% to 70% high-density polyethylene and 30% to 40% log powder by weight, and the log composite powder with a particle size of 0.1 to 0.3 mm is prepared; wherein the log powder is one or more of elm, birch, walnut, locust, crabapple, beech, cherry, longan and camphor, all of which are log processing residues, including scraps, shavings, sawdust, etc., and the log powder is formed after being crushed and dried.

[0027] Furthermore, in step S4, the curing process is: curing for 24 hours in a temperature environment of 20-25°C; or curing for 2 hours in a temperature environment of 20-25°C, and then heating to a temperature environment of 70-80°C, and curing for 2 hours before being put into use.

[0028] In a third aspect, the present invention provides a curing production equipment for straw wood plastic composite board, comprising: a conveying device for horizontally conveying a concrete board, a transfer device for moving the straw wood plastic composite board to above the concrete board, a steam dispersing device for performing steam preheating treatment between the concrete board and the straw wood plastic composite board joint surface, and a gluing device for uniformly applying glue on the joint surface of the concrete board and the straw wood plastic composite board;

[0029] The transfer device comprises: a suspension rotating around a vertical axis, a rotary drive mechanism for driving the suspension to rotate, a mounting plate connected to the suspension via a lifting mechanism, and a suction cup at the bottom end of the mounting plate for sucking the straw wood-plastic composite board;

[0030] The steam dispersing device comprises: a hollow shell, air outlets on the shell respectively facing the concrete plate and the straw-wood-plastic composite board, and an air inlet pipe communicating with the inside of the shell for introducing steam therein;

[0031] The glue coating device comprises: a mounting frame, a roller brush mounted thereon for rotation around a horizontal axis, a driving motor for driving the roller brush to rotate, and glue spray nozzles evenly arranged on the mounting frame along the axis of the roller brush and with the nozzles facing the brushing surface of the roller brush; the other end of the glue spray nozzle is connected to the glue storage tank pipeline through a pump;

[0032] The steam dispersing device is installed at one end of a beam which can rotate around a vertical axis, and the glue coating device is installed at the other end of the beam; a rotating driving mechanism for driving the beam to rotate is also provided on the beam.

[0033] Furthermore, the conveying device includes: a conveyor belt, a plurality of conveyor rollers mounted on a frame and drivingly connected to the conveyor belt, and a motor for driving the conveyor rollers to rotate.

[0034] Furthermore, the lifting mechanism includes a vertically arranged telescopic rod and a guide assembly, one end of the telescopic rod is connected to the suspension, and the other end is connected to the mounting plate, and the suspension and the mounting plate are installed with the guide assembly.

[0035] Furthermore, the rotary drive mechanism comprises: a column rotating around a vertical axis, a reducer for driving the column to rotate, and the lower end of the column is drivingly connected to the output end of the reducer.

[0036] In a fourth aspect, the present invention provides an application of a straw-wood-plastic composite board, and the application of the straw-wood-plastic composite board or the straw-wood-plastic composite board obtained by the above-mentioned preparation method in laying floor tiles and wall tiles.

[0037] Compared with the prior art, the beneficial effects of the present invention are: the board with concrete as the base layer and the wood composite layer as the surface layer makes the surface layer present a real wood texture and is not easy to deform, saves raw wood, and is suitable for mass production.

[0038] The curing production equipment in the present invention first cleans the bonding surface between the concrete board and the wood-plastic composite board by steam, and preheats the bonding surface and keeps the bonding surface slightly moist, thereby ensuring that the structural adhesive is bonded at an optimal temperature, humidity and micro-pressure state in the next step, fundamentally solving the problem of weak interface bonding between the two, effectively preventing the straw wood-plastic composite board from cracking during later use, and the equipment has high production efficiency and is suitable for large-scale continuous production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] Figure 1 Schematic diagram of the front view structure of a plate (a) and a schematic diagram of the side view structure of a plate (b) in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the main structure of the curing production equipment according to an embodiment of the present invention;

[0042] Figure 3For the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0043] Figure 4 For the present invention Figure 2 A schematic diagram of the top view of the installation relationship between the steam dispersing device and the glue coating device;

[0044] Figure 5 For the present invention Figure 2 Schematic diagram of the structure from the middle side.

[0045] In the figure: 1. conveying device; 11. conveyor belt; 12. conveying roller; 13. motor; 2. transfer device; 21. suspension; 22. lifting mechanism; 221. telescopic rod; 222. guide assembly; 23. mounting plate; 24. suction cup; 3. steam dissipation device; 31. shell; 32. air outlet; 33. air inlet pipe; 4. gluing device; 41. mounting frame; 42. roller brush; 43. driving motor; 44. glue spray nozzle; 5. crossbeam; 6. column; 7. reducer. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0047] See also Figure 1-Figure 5 , Figure 1 Schematic diagram of the front view structure of a plate (a) and a schematic diagram of the side view structure of a plate (b) in an embodiment of the present invention; Figure 2 This is a schematic diagram of the main structure of the curing production equipment according to an embodiment of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A; Figure 4 For the present invention Figure 2 A schematic diagram of the top view of the installation relationship between the steam dispersing device and the glue coating device; Figure 5 For the present invention Figure 2 Schematic diagram of the structure from the middle side.

[0048] Embodiment 1:

[0049] The embodiment of the present invention provides a straw wood-plastic composite board, which is composed of a three-layer structure of a base layer, an intermediate bonding layer, and a surface layer bonded by pressing;

[0050] The base layer is a cured concrete slab, which is formed by mixing the following components evenly and curing them through a mold, wherein the weight ratio of each component is: 25 parts of cement, 80 parts of sand, 95 parts of gravel, 90 parts of mineral powder, 5 parts of water reducer, and 110 parts of water;

[0051] The intermediate bonding layer is a structural adhesive, which is coated between the base layer and the surface layer to play a bonding role;

[0052] The surface layer is a straw wood-plastic composite board, which is formed into a wooden thin board by evenly mixing the following components and then calendering. The weight ratio of each component is: 20 parts of straw powder, 15 parts of log composite powder, 0.5 parts of natural resin, 60 parts of high-density polyethylene, 0.5 parts of nano zinc oxide powder, and 1 part of plasticizer.

[0053] Embodiment 2:

[0054] The embodiment of the present invention provides a straw wood-plastic composite board, which is composed of a three-layer structure of a base layer, an intermediate bonding layer, and a surface layer bonded by pressing;

[0055] The base layer is a cured concrete slab, which is formed by uniformly mixing the following components and curing them through a mold, wherein the weight ratio of each component is: 30 parts of cement, 85 parts of sand, 100 parts of gravel, 120 parts of mineral powder, 10 parts of water reducing agent, and 120 parts of water;

[0056] The intermediate bonding layer is a structural adhesive, which is coated between the base layer and the surface layer to play a bonding role;

[0057] The surface layer is a straw wood-plastic composite board, which is formed into a wooden thin board by evenly mixing the following components and then calendering. The weight ratio of each component is: 25 parts of straw powder, 25 parts of log composite powder, 2 parts of natural resin, 70 parts of high-density polyethylene, 2 parts of nano zinc oxide powder, and 2 parts of plasticizer.

[0058] Embodiment three:

[0059] The embodiment of the present invention provides a straw wood-plastic composite board, which is composed of a three-layer structure of a base layer, an intermediate bonding layer, and a surface layer bonded by pressing;

[0060] The base layer is a cured concrete slab, which is formed by mixing the following components evenly and curing them through a mold, wherein the weight ratio of each component is: 28 parts of cement, 82 parts of sand, 98 parts of gravel, 110 parts of mineral powder, 8 parts of water reducer, and 115 parts of water;

[0061] The intermediate bonding layer is a structural adhesive, which is coated between the base layer and the surface layer to play a bonding role;

[0062] The surface layer is a straw wood-plastic composite board, which is formed into a wooden thin board by evenly mixing the following components and then calendering. The weight ratio of each component is: 22 parts of straw powder, 20 parts of log composite powder, 1.5 parts of natural resin, 65 parts of high-density polyethylene, 1.5 parts of nano zinc oxide powder, and 1.5 parts of plasticizer.

[0063] In the above-mentioned embodiments 1, 2 and 3, the cement grade is 42.5. The mineral powder is slag powder. The water reducer is a polycarboxylic acid high-performance water reducer, the solid content of the water reducer is not less than 20%, and the water reduction rate is not less than 25%. The structural adhesive can adopt the BD811 high-strength structural adhesive produced by Xiangfan Lianji Adhesive Factory, and the A and B components are mixed evenly according to the mass ratio A:B=4:1 or the volume ratio 3:1 before use. The sand particle size is <2mm, and the gravel particle size is 4-15mm. The straw is one or more of wheat, rice, and corn stalks, which are washed, dried, and crushed into straw powder. Among the straw powder, the particle size of 0.3-0.5mm accounts for 30%-40%, and the particle size of <0.3mm accounts for 60%-70%. The log composite powder is prepared by mixing 60% to 70% high-density polyethylene and 30% to 40% log powder in weight percentage, and after mixing, crushing, fine grinding and screening, a log composite powder with a particle size of 0.1 to 0.3 mm is prepared; wherein the log powder is one or more of ash, birch, walnut, locust, crabapple, beech, cherry, longan and camphor, all of which are log processing residues, including scraps, shavings, sawdust, etc., and the log powder is formed after crushing and drying.

[0064] Embodiment 4:

[0065] In a second aspect, the present invention also provides a method for preparing a straw-wood-plastic composite board, comprising the following steps:

[0066] S1. Base forming: The base is a cured concrete slab, which is formed by mixing the following components evenly and curing them into a concrete slab through a mold, wherein the weight ratio of each component is: 25-30 parts of cement, 80-85 parts of sand, 95-100 parts of gravel, 90-120 parts of mineral powder, 5-10 parts of water reducer, and 110-120 parts of water;

[0067] S2. Preparation of the intermediate bonding layer: The intermediate bonding layer is a structural adhesive. The components A and B of the structural adhesive are mixed evenly at a mass ratio of A:B=4:1 or a volume ratio of 3:1 and set aside;

[0068] S3, surface forming: the surface layer is a straw wood plastic composite board, which is formed into a wood thin board by calendering after the following components are evenly mixed, and the weight ratio of each component is: 20-25 parts of straw powder, 15-25 parts of log composite powder, 0.5-2 parts of natural resin, 60-70 parts of high-density polyethylene, 0.5-2 parts of nano zinc oxide powder, and 1-2 parts of plasticizer; 0.8-2mm thick straw wood plastic composite board is formed by calendering, wherein the calendering forming temperature is 220-280℃, the forming pressure is 400-500MPa, the heat preservation and pressure holding time is 15-30min, and the cooling medium is liquid nitrogen;

[0069] S4, board bonding and pressing: clean the bonding and pressing surfaces of the concrete board and the straw-wood-plastic composite board respectively, and then preheat the bonding and pressing surfaces by steam at 30-50°C, evenly apply the structural adhesive in S2 on the joint surfaces of the concrete board and the straw-wood-plastic composite board, and then bond and solidify the concrete board and the straw-wood-plastic composite board under slight pressure to obtain the straw-wood-plastic composite board.

[0070] Preferably, the straw is one or more of wheat, rice and corn stalks, which are washed, dried and crushed into straw powder, wherein the straw powder has a particle size of 0.3-0.5 mm accounting for 30%-40% and a particle size of <0.3 mm accounting for 60%-70%.

[0071] Preferably, the log composite powder is prepared by mixing 60% to 70% high-density polyethylene and 30% to 40% log powder in weight percentage, and after mixing, crushing, fine grinding and screening, a log composite powder with a particle size of 0.1 to 0.3 mm is prepared; wherein the log powder is one or more of elm, birch, walnut, locust, crabapple, beech, cherry, longan and camphor, all of which are log processing residues, including scraps, shavings, sawdust, etc., which are crushed and dried to form log powder.

[0072] Preferably, in step S4, the curing process is: curing for 24 hours in a temperature environment of 20-25°C; or curing for 2 hours in a temperature environment of 20-25°C, and then heating to a temperature environment of 70-80°C, and curing for 2 hours before being put into use.

[0073] Embodiment five:

[0074] In a third aspect, the present invention provides a curing production equipment for a straw-wood-plastic composite board, comprising: a conveying device 1 for horizontally conveying a concrete board, a transfer device 2 for moving the straw-wood-plastic composite board to the top of the concrete board, a steam dispersing device 3 for performing steam preheating treatment between the concrete board and the straw-wood-plastic composite board joint surface, and a glue coating device 4 for uniformly coating glue on the concrete board and the straw-wood-plastic composite board joint surface;

[0075] The transfer device 2 includes: a suspension 21 rotating around a vertical axis, a rotary drive mechanism for driving the suspension 21 to rotate, a mounting plate 23 connected to the suspension 21 through a lifting mechanism 22, and a suction cup 24 located at the bottom of the mounting plate 23 for sucking the straw-wood-plastic composite board; a silo for containing the straw-wood-plastic composite board is also provided on the side of the conveying device 1, so that the transfer device 2 can rotate the straw-wood-plastic composite board therein to just above the concrete slab on the conveying device 1.

[0076] The steam dispersing device 3 comprises: a hollow shell 31, air outlet holes 32 respectively opened on the shell 31 facing the concrete slab and the straw-wood-plastic composite board, and an air inlet pipe 33 communicating with the inside of the shell 31 for introducing steam therein;

[0077] The glue coating device 4 comprises: a mounting frame 41, a roller brush 42 mounted thereon for rotation around a horizontal axis, a driving motor 43 for driving the roller brush 42 to rotate, and glue spray nozzles 44 evenly arranged on the mounting frame 41 along the axis of the roller brush 42 and with the nozzles facing the brush surface of the roller brush 42; the other end of the glue spray nozzle 44 is connected to the glue storage tank pipeline through a pump;

[0078] The steam dispersing device 3 is installed at one end of a crossbeam 5 which can rotate around a vertical axis, and the glue coating device 4 is installed at the other end of the crossbeam 5; a rotating driving mechanism for driving the crossbeam 5 to rotate is also provided on the crossbeam 5.

[0079] Specifically, the conveying device 1 conveys the concrete slab to the working position, and stops conveying. The transfer device 2 sucks up the straw wood-plastic composite board through the suction cup 24 and rotates it to the top of the working position, and the lifting mechanism 22 descends to a suitable position; the crossbeam 5 rotates, so that the steam dispersing device 3 extends between the concrete slab and the wood-plastic composite board on the working position, and the steam preheats the joint surface of the concrete slab and the wood-plastic composite board through the air inlet pipe 33, the inside of the shell 31, and the air outlet 32, and the temperature is about 30 degrees; then, the crossbeam 5 rotates, and the glue coating device 4 starts to work at this time. After the base glue in its two glue storage tanks is mixed with the curing agent, it is pumped to the glue spray nozzle 44, and then sprayed onto the outer circumference of the roller brush 42. At the same time, the driving motor 43 drives the roller brush 42 to rotate. When the roller brush 42 passes between the concrete slab and the wood-plastic composite board, it applies glue to the two A layer of structural adhesive layer is evenly brushed on the bonding surface; finally, the lifting mechanism 22 continues to descend, so that the wood-plastic composite board is pressed onto the concrete board, and after a period of time, the straw wood-plastic composite board of the present invention is prepared, and the rear suction cup 24 is loosened, and the conveying device 1 is turned on for conveying, and the next board is pressed. It can be understood that the equipment first cleans the bonding surface between the concrete board and the wood-plastic composite board by steam, and on the other hand, preheats it and keeps the bonding surface slightly wet, so as to ensure that the next step of the structural adhesive is combined at an optimal temperature, humidity, and micro-pressure state. The interface is combined, which fundamentally solves the problem of weak interface bonding between the two, and effectively prevents the cracking of the straw wood-plastic composite board during the later use process, and the equipment has high production efficiency and is suitable for large-scale continuous production needs.

[0080] Preferably, the conveying device 1 comprises: a conveying belt 11, a plurality of conveying rollers 12 mounted on a frame and drivingly connected to the conveying belt 11, and a motor 13 for driving the conveying rollers 12 to rotate.

[0081] Preferably, the lifting mechanism 22 includes a vertically arranged telescopic rod 221 and a guide assembly 222. The telescopic rod 221 can be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, etc., one end of which is connected to the suspension 21 and the other end is connected to the mounting plate 23, and the suspension 21 and the mounting plate 23 are installed with the guide assembly 222.

[0082] Preferably, the rotary drive mechanism comprises: a column 6 rotating around a vertical axis, a reducer 7 for driving the column 6 to rotate, and the lower end of the column 6 is drivingly connected to the output end of the reducer 7. The bottom of the reducer 7 is fixed on the foundation, and the reducer 7 drives the column 6 to rotate intermittently at 180 degrees in the horizontal plane.

[0083] Embodiment six:

[0084] In a fourth aspect, the present invention provides an application of a straw-wood-plastic composite board, and the application of the straw-wood-plastic composite board or the straw-wood-plastic composite board obtained by the above-mentioned preparation method in laying floor tiles and wall tiles.

[0085] Specifically, the above-mentioned board is cut into a suitable size, and the wooden board surface can be grinded and polished and laid flat on the ground or wall.

[0086] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. The curing production equipment of straw wood plastic composite board is characterized in that: include: A conveying device (1) for conveying the concrete slab laterally, a transfer device (2) for moving the straw-wood-plastic composite board to the top of the concrete slab, a steam dispersing device (3) for performing steam preheating treatment on the joint surface between the concrete slab and the straw-wood-plastic composite board, and a gluing device (4) for evenly applying glue on the joint surface between the concrete slab and the straw-wood-plastic composite board; The transfer device (2) comprises: a suspension (21) rotating about a vertical axis, a rotation drive mechanism for driving the suspension (21) to rotate, a mounting plate (23) connected to the suspension (21) via a lifting mechanism (22), and a suction cup (24) located at the bottom end of the mounting plate (23) for sucking the straw wood-plastic composite board; The steam dissipation device (3) comprises: a hollow shell (31), air outlet holes (32) respectively opened on the shell (31) facing the concrete slab and the straw-wood-plastic composite board, and an air inlet pipe (33) communicating with the interior of the shell (31) for introducing steam therein; The glue coating device (4) comprises: a mounting frame (41), a roller brush (42) mounted thereon so as to rotate about a horizontal axis, a driving motor (43) for driving the roller brush (42) to rotate, and glue spray nozzles (44) evenly arranged on the mounting frame (41) along the axis of the roller brush (42) and with the nozzles facing the brush surface of the roller brush (42); the other end of the glue spray nozzle (44) is connected to a glue storage tank pipeline via a pump; The steam dispersing device (3) is mounted on one end of a crossbeam (5) that can rotate about a vertical axis, and the glue coating device (4) is mounted on the other end of the crossbeam (5); a rotating drive mechanism for driving the crossbeam (5) to rotate is also provided on the crossbeam (5); The lifting mechanism (22) comprises a vertically arranged telescopic rod (221) and a guide assembly (222); one end of the telescopic rod (221) is connected to the suspension (21), and the other end is connected to the mounting plate (23); and the guide assembly (222) is mounted on the suspension (21) and the mounting plate (23); The conveying device (1) comprises: a conveying belt (11), a plurality of conveying rollers (12) mounted on a frame and drivingly connected to the conveying belt (11), and a motor (13) for driving the conveying rollers (12) to rotate; The rotary drive mechanism comprises: a column (6) rotating about a vertical axis, and a reducer (7) for driving the column (6) to rotate, wherein the lower end of the column (6) is drivingly connected to the output end of the reducer (7).

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