High-strength wood-plastic floor processing method

Abstract

The invention relates to the technical field of high-strength wood-plastic floor processing, in particular to a high-strength wood-plastic floor processing method.The high-strength wood-plastic floor processing method comprises a cooling water tank, a partition unit, a water cooling unit and an air cooling unit, it is guaranteed that the upper surface and the lower surface of a floor blank make full contact with cooling water through the water cooling unit, and the situation that the floor blank is damaged due to the shape and the size of the floor blank is avoided; in order to solve the problem that the cooling water cannot reach the lower surface of the blank due to the fact that the cooling water forms a local vortex or a stagnation area in the flowing process, the upper surface and the lower surface of the floor blank are further cooled through the air cooling unit, and meanwhile the upper surface and the lower surface of the floor blank are dried; cooling water, cooling water with the temperature increased after heat exchange and cooling water for cooling treatment are stored respectively, the demand for the cooling water is reduced, the cooling cost is reduced, and meanwhile the situation that the cooling water with the temperature increased after heat exchange is directly close to the floor blank, and the cooling effect of the lower surface of the floor blank is poor is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of high-strength wood-plastic floor processing, and specifically to a high-strength wood-plastic floor processing method. Background Art

[0002] Wood-plastic floor is a new type of environmentally friendly composite material product. Its raw materials include wood powder and recycled plastic generated during the production process of medium and high density fiberboard. After the wood powder and recycled plastic are made into wood-plastic composite materials by granulating equipment, they are processed into wood-plastic floors through an extrusion molding process. This product combines the wood texture of wood and the water and corrosion resistance of plastic, and is suitable for the field of outdoor waterproof and anti-corrosion building materials.

[0003] The processing methods of wood-plastic floors mainly include: material preparation, mixing and stirring, extrusion molding, cooling and shaping, surface treatment and cutting and packaging. Among them, cooling and shaping determines the dimensional accuracy, mechanical properties, surface quality and production efficiency of wood-plastic floors. Therefore, in the process of wood-plastic floor processing, cooling and shaping plays a crucial role.

[0004] The traditional cooling and shaping method generally combines water cooling and air cooling. Cooling water is discharged onto the upper surface of the floor blank through a pipeline. As the water flows, the heat of the part of the floor blank surface in contact with the cooling water is taken away, so as to achieve the purpose of heat exchange and cooling. Then, air cooling is further carried out for cooling. However, after the cooling water contacts the upper surface of the floor blank, eddy currents or stagnant areas are easily formed when the cooling water flows on the upper surface, resulting in insufficient contact of the lower surface of the blank, poor cooling effect of the lower surface of the floor blank, uneven overall cooling of the floor blank, and affecting the curing and shaping quality of the floor blank; secondly, during the entire cooling process, cooling water is discharged onto the upper surface of the floor blank through a pipeline, and continuous cooling supply is required and it depends on the operation of the cooling tower, and the workload of the cooling tower is relatively large. Summary of the Invention

[0005] In view of the above problems, the embodiments of the present application provide a high-strength wood-plastic floor processing method to solve the technical problems of high cooling cost and uneven cooling effect in related technologies. To achieve the above purpose, the embodiments of the present application provide the following technical solutions.

[0006] A high-strength wood-plastic floor processing method according to the embodiments of the present application, a high-strength wood-plastic floor processing method, includes the following steps; S1. Material preparation: Prepare wood powder, plastic particles and additives.

[0007] S2. Mixing and stirring: Add the wood powder, plastic particles and additives into a high-speed mixer in proportion for sufficient mixing to form a premix.

[0008] S3. Extrusion Molding: The premix is added to a twin-screw extruder and heated to melt and plasticize it. The screw drives the plasticized material forward for further uniform mixing and then extrudes it through the die head to form a floor blank.

[0009] S4. Cooling and Shaping: The extruded floor blank is cooled and shaped by a cooling device to rapidly solidify the floor blank.

[0010] S5. Surface Treatment, Cutting, and Packaging: The surface of the cooled floor blank is sanded by a sander, then the sanded floor surface is coated. Then, the floor is cut according to the required size and packaged with a plastic film after passing quality inspection.

[0011] Among them, the cooling device involved in step S4 includes a cooling water tank. A partition unit is arranged at the inner end of the cooling water tank. A water cooling unit for water-cooling the floor blank is arranged on the left side of the cooling water tank, and an air cooling unit for air-cooling the floor blank and accelerating the drying of its surface is arranged on the right side of the cooling water tank.

[0012] According to an embodiment of the present invention, the partition unit includes a horizontal partition plate. The horizontal partition plate is fixedly installed at the inner end of the cooling water tank. A return groove is formed on the right side of the horizontal partition plate, and a valve I is fixedly installed in the return groove. A vertical partition plate is fixedly installed at the upper end of the horizontal partition plate. The front and rear ends of the vertical partition plate are fixedly connected to the cooling water tank. A communication pipe is fixedly installed in the middle of the lower side of the vertical partition plate, and a valve II is fixedly installed at the inner end of the communication pipe. A cooling rack for cooling the heat-exchanged cooling water is arranged on the right side of the inner end of the cooling water tank, and a guiding rack for guiding and limiting the floor blank is arranged on the left side of the inner end of the cooling water tank. A drain pipe is fixedly installed at the left end of the cooling water tank and above the horizontal partition plate, and a water supply pipe is fixedly installed at the left end of the cooling water tank and below the horizontal partition plate. The drain pipe is fixedly connected to a cooling tower. Roller conveyors are arranged on both the left and right sides of the cooling water tank. The cooling tower and the roller conveyors are prior arts and are not shown in the drawings.

[0013] According to an embodiment of the present invention, the water cooling unit includes a vertical pipe. An inclined guide plate and the left side of the horizontal partition plate are jointly fixedly installed with a vertical pipe. A spray rack I is fixedly installed at the inner end of the cooling water tank and directly above the vertical pipe. A water pump is fixedly installed at the lower end of the spray rack I, a waterproof cover is fixedly installed at the upper end of the water pump, and the water pump is fixedly connected to the vertical pipe. A spray rack II is fixedly installed at the upper end of the cooling water tank through an inverted L-shaped plate, and a through pipe is fixedly installed at the upper end of the spray rack II.

[0014] According to an embodiment of the present invention, the air-cooling unit includes a mouth-shaped tube. The upper right end of the cooling water tank is fixedly installed with mouth-shaped tubes arranged evenly from right to left through a connecting plate. The left end of the mouth-shaped tube is fixedly installed with inclined jet heads evenly along its trajectory, and the jet orifices of the jet heads face the middle. A first connecting pipe is fixedly installed between the lower left end of the rightmost mouth-shaped tube and the adjacent mouth-shaped tube. A second connecting pipe is fixedly installed between the upper left end of the middle mouth-shaped tube and the leftmost mouth-shaped tube.

[0015] According to an embodiment of the present invention, the first water spraying frame includes a king-shaped pipe rack. A king-shaped pipe rack is fixedly installed at the inner end of the cooling water tank and directly above the vertical pipe. Nozzles are fixedly installed evenly along the linear direction at the upper ends of the water pipes arranged in the front-back direction on the king-shaped pipe rack, and the nozzles are staggered between adjacent pairs on the left and right. The structure of the second water spraying frame is the same as that of the first water spraying frame, except that the setting direction of the nozzles of the second water spraying frame is opposite to that of the nozzles of the first water spraying frame.

[0016] According to an embodiment of the present invention, the temperature reduction frame includes a rotating shaft. The rotating shaft is rotatably connected to the upper side of the horizontal partition plate on the right side of the cooling water tank. A group of fixed rods are fixedly installed evenly along the linear direction at the outer left end of the rotating shaft. Each group of fixed rods is composed of connecting rods arranged evenly along the circumference of the rotating shaft. The connecting rods on the same group of fixed rods are fixedly installed together at the end far from the rotating shaft with a circular conveying plate. Water receiving grooves are evenly opened at the end of the circular conveying plate far from the rotating shaft. Ventilation grooves are symmetrically opened on the front and back of the cooling water tank and directly above the circular conveying plate. An exhaust pipe is fixedly installed on the right side of the vertical partition plate. Exhaust ports are evenly opened at the lower end of the exhaust pipe and directly above the circular conveying plate. A rotating cylinder is rotatably connected evenly from right to left along the linear direction below the rotating shaft on the right side of the cooling water tank. Stirring plates are fixedly installed evenly along the circumference at the outer end of the rotating cylinder. A sprocket is fixedly installed at the front end of each rotating cylinder, and the sprockets are connected by a toothed chain belt drive. A temperature measuring instrument is arranged on the right side of the cooling water tank and on the right side of the vertical partition plate. The sprockets, the toothed chain belt, and the temperature measuring instrument are all prior arts and are not shown in the drawings.

[0017] According to an embodiment of the present invention, the guiding frame includes guiding columns. The guiding columns are rotatably connected together at the front and rear sides on the left side of the inner end of the cooling water tank. A bidirectional screw rod is rotatably connected to the middle of the guiding columns. Circular plates are symmetrically threadedly connected to the front and back of the bidirectional screw rod. Connecting blocks penetrating the guiding columns are fixedly installed evenly along the circumference at the outer ends of the circular plates. The ends of the connecting blocks on the same side far from the circular plates are fixedly connected together with an annular pressing plate.

[0018] According to an embodiment of the present invention, fixed cylinders are fixedly installed evenly along the linear direction at the lower end of the horizontal partition plate. A floating plate is slidably connected up and down together on the fixed cylinders. The floating plate is of a hollow structure.

[0019] According to an embodiment of the present invention, rectangular grooves are formed at both the front and rear ends of the floating plate on the cooling water tank, and transparent glasses are fixedly installed in the rectangular grooves.

[0020] According to an embodiment of the present invention, an inclined guide plate is fixedly installed at the left end of the vertical partition plate, and both the front and rear ends of the inclined guide plate are fixedly connected to the cooling water tank.

[0021] From the above technical solutions, the following advantages of the present invention can be seen: 1. In the present invention, through the water cooling unit, it is ensured that the upper and lower surfaces of the floor blank are completely in contact with the cooling water, avoiding the formation of local eddy currents or stagnant areas during the flow of the cooling water due to the shape and size of the floor blank, which may cause the situation where the cooling water cannot reach the lower surface of the blank. Through the air cooling unit, the upper and lower surfaces of the floor blank are further cooled and dried. Through the partition unit, the cooling water tank is divided into three intervals to store cooling water, cooling water with increased temperature after heat exchange, and cooling water for temperature reduction treatment respectively, reducing the demand for cooling water, lowering the cooling cost, and at the same time preventing the cooling water with increased temperature after heat exchange from directly approaching the floor blank, resulting in poor cooling effect on the lower surface of the floor blank.

[0022] 2. In the present invention, according to the width of the floor blank, the bidirectional screw is rotated to adjust the distance between the annular pressing plates. With the cooperation of the guide posts and the annular pressing plates, the conveying and guiding of the floor blank are assisted. The cooling water is sprayed onto the upper and lower surfaces of the floor blank through the staggered nozzles, ensuring that the upper and lower surfaces of the floor blank are completely in contact with the cooling water while saving the amount of cooling water required during cooling.

[0023] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, other technical problems that can be solved by the high-strength wood-plastic floor processing method provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manner. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative efforts.

[0025] Figure 1 Shows the working flow chart of wood-plastic floor processing.

[0026] Figure 2 The front perspective structural schematic diagram of the cooling device is shown.

[0027] Figure 3 The front perspective structural schematic diagram of the cooling device with the front side of the cooling water tank removed is shown.

[0028] Figure 4 The front perspective structural schematic diagram of the cooling device with the front side of the cooling water tank and the floor blank removed is shown.

[0029] Figure 5 The front perspective sectional plane structural schematic diagram of the cooling device is shown.

[0030] Figure 6 The right perspective sectional plane structural schematic diagram of the circular plate and the connecting block is shown.

[0031] Among them, the above-mentioned drawings include the following reference numerals: 1. Cooling water tank; 11. Transparent glass; 2. Partition unit; 21. Horizontal partition plate; 211. Fixed cylinder; 212. Floating plate; 22. Return flow tank; 23. Valve 1; 24. Vertical partition plate; 241. Inclined guide plate; 25. Connecting pipe; 26. Valve 2; 27. Cooling rack; 271. Rotating shaft; 272. Connecting rod; 273. Ring-shaped conveying plate; 274. Water receiving tank; 275. Ventilation slot; 276. Exhaust pipe; 277. Exhaust port; 278. Rotating cylinder; 279. Stirring plate; 28. Guide frame; 281. Guide post; 282. Bidirectional screw; 283. Circular plate; 284. Connecting block; 285. Annular pressing plate; 29. Drain pipe; 30. Water replenishing pipe; 3. Water cooling unit; 31. Vertical pipe; 32. Spraying rack 1; 321. King-shaped pipe rack; 322. Nozzle; 33. Water pump; 34. Spraying rack 2; 35. Water passing pipe; 4. Air cooling unit; 41. Square-shaped pipe; 42. Air jet head; 43. Connecting pipe 1; 44. Connecting pipe 2. Detailed implementation manners

[0032] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be made with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] Refer to Figure 1 And Figure 2 , a processing method for high-strength wood-plastic floor, comprising the following steps; S1. Material preparation: Prepare wood powder, plastic particles and additives.

[0034] S2. Mixing and Stirring: Add wood powder, plastic particles, and additives in proportion to a high-speed mixer for thorough mixing to form a premix.

[0035] S3. Extrusion Molding: Add the premix to a twin-screw extruder for heating to melt and plasticize it. The screw drives the plasticized material forward for further uniform mixing, and then it is extruded through the die head of the machine to form a floor blank.

[0036] S4. Cooling and Shaping: The extruded floor blank is cooled and shaped through a cooling device to quickly solidify the floor blank.

[0037] S5. Surface Treatment, Cutting, and Packaging: The surface of the cooled floor blank is sanded by a sander, then the sanded floor surface is coated. Then, the floor is cut according to the required size and packaged with a plastic film after passing quality inspection.

[0038] Among them, the cooling device involved in step S4 includes a cooling water tank 1. A partition unit 2 is arranged at the inner end of the cooling water tank 1. A water cooling unit 3 for water-cooling the floor blank is arranged on the left side of the cooling water tank 1, and an air cooling unit 4 for air-cooling the floor blank and accelerating the drying of its surface is arranged on the right side of the cooling water tank 1.

[0039] Refer to Figure 2 、 Figure 3 and Figure 5 The partition unit 2 includes a horizontal partition board 21. The horizontal partition board 21 is fixedly installed at the inner end of the cooling water tank 1. A return groove 22 is formed on the right side of the horizontal partition board 21, and a valve 23 is fixedly installed in the return groove 22. A vertical partition board 24 is fixedly installed at the upper end of the horizontal partition board 21. The front and rear ends of the vertical partition board 24 are fixedly connected to the cooling water tank 1. An inclined guide plate 241 is fixedly installed at the left end of the vertical partition board 24, and the front and rear ends of the inclined guide plate 241 are fixedly connected to the cooling water tank 1. A communicating pipe 25 is fixedly installed in the middle of the lower side of the vertical partition board 24, and a valve 26 is fixedly installed at the inner end of the communicating pipe 25. A cooling rack 27 for cooling the heat-exchanged cooling water is arranged on the right side of the inner end of the cooling water tank 1, and a guiding rack 28 for guiding and limiting the floor blank is arranged on the left side of the inner end of the cooling water tank 1. A drain pipe 29 is fixedly installed at the left end of the cooling water tank 1 and above the horizontal partition board 21, and a water supply pipe 30 is fixedly installed at the left end of the cooling water tank 1 and below the horizontal partition board 21. The drain pipe 29 is fixedly connected to a cooling tower. Roller conveyors are arranged on both the left and right sides of the cooling water tank 1. The cooling tower and the roller conveyors are prior arts and are not shown in the drawings.

[0040] Refer to Figure 3 and Figure 5, the water cooling unit 3 includes a vertical pipe 31. The inclined guide plate 241 and the left side of the horizontal partition plate 21 are jointly and fixedly installed with the vertical pipe 31. At the inner end of the cooling water tank 1 and directly above the vertical pipe 31, a first water spraying rack 32 is fixedly installed. At the lower end of the first water spraying rack 32, a water pump 33 is fixedly installed. At the upper end of the water pump 33, a waterproof cover is fixedly installed. The water pump 33 is fixedly connected to the vertical pipe 31. At the upper end of the cooling water tank 1, a second water spraying rack 34 is fixedly installed through an inverted L-shaped plate. At the upper end of the second water spraying rack 34, a water pipe 35 is fixedly installed.

[0041] Refer to Figure 4 , the first water spraying rack 32 includes a king-shaped pipe rack 321. At the inner end of the cooling water tank 1 and directly above the vertical pipe 31, the king-shaped pipe rack 321 is fixedly installed. At the upper ends of the water pipes arranged in the front-back direction on the king-shaped pipe rack 321, spray nozzles 322 are linearly and evenly fixedly installed along it. The spray nozzles 322 are staggered between two adjacent ones left and right. The structure of the second water spraying rack 34 is the same as that of the first water spraying rack 32, only the installation direction of the spray nozzles 322 of the second water spraying rack 34 is opposite to that of the spray nozzles 322 of the first water spraying rack 32.

[0042] Refer to Figure 4 And Figure 6 , the guide frame 28 includes guide columns 281. The front and rear sides on the left side of the inner end of the cooling water tank 1 are jointly rotatably connected with the guide columns 281. In the middle of the guide columns 281, a bidirectional screw rod 282 is rotatably connected. One end of the bidirectional screw rod 282 penetrates through the side wall of the cooling water tank 1. On the bidirectional screw rod 282, circular plates 283 are symmetrically threadedly connected in the front and back. At the outer ends of the circular plates 283, connecting blocks 284 penetrating through the guide columns 281 are evenly fixedly installed along the circumferences thereof. At the ends of the connecting blocks 284 on the same side away from the circular plates 283, an annular pressing plate 285 is jointly fixedly connected.

[0043] According to the width of the floor blank, rotate the bidirectional screw rod 282 to adjust the distance between the annular pressing plates 285. At this time, the floor blank extruded from the head die enters the cooling equipment under the transportation of the roller conveyor. With the cooperation of the guide columns 281 and the annular pressing plates 285, the transportation and guiding of the floor blank are further assisted. When the floor blank enters between the king-shaped pipe racks 321 on the upper and lower sides, cooling water is sprayed onto the upper and lower surfaces of the floor blank through the staggered spray nozzles 322 to ensure that both the upper and lower surfaces of the floor blank are in contact with the cooling water.

[0044] Refer to Figure 3 And Figure 5, the air-cooling unit 4 includes a U-shaped pipe 41. The upper right end of the right side of the cooling water tank 1 is fixedly installed with U-shaped pipes 41 arranged evenly from right to left through a connecting plate. The left end of the U-shaped pipe 41 is fixedly installed with inclined jet heads 42 evenly along its track. The jet ports of the jet heads 42 face the middle. A first connecting pipe 43 is fixedly installed between the lower left end of the rightmost U-shaped pipe 41 and the adjacent U-shaped pipe 41. A second connecting pipe 44 is fixedly installed between the upper left end of the middle U-shaped pipe 41 and the leftmost U-shaped pipe 41.

[0045] Refer to Figure 4 And Figure 5 , the temperature reduction frame 27 includes a rotating shaft 271. The rotating shaft 271 is rotatably connected to the upper side of the horizontal partition plate 21 on the right side of the cooling water tank 1. A group of fixed rods is fixedly installed evenly along the outer end of the left side of the rotating shaft 271. Each group of fixed rods is composed of connecting rods 272 arranged evenly along the circumference of the rotating shaft 271. The ends of the connecting rods 272 on the same group of fixed rods away from the rotating shaft 271 are jointly fixedly installed with a circular conveying plate 273. The end of the circular conveying plate 273 away from the rotating shaft 271 is evenly provided with water holding grooves 274. Ventilation grooves 275 are symmetrically arranged in front and behind the circular conveying plate 273 on the cooling water tank 1. An exhaust pipe 276 is fixedly installed on the right side of the vertical partition plate 24. Exhaust ports 277 are evenly arranged at the lower end of the exhaust pipe 276 and directly above the circular conveying plate 273. Rotating cylinders 278 are rotatably connected evenly from right to left below the rotating shaft 271 on the right side of the cooling water tank 1. Stirring plates 279 are fixedly installed evenly along the circumference of the outer end of the rotating cylinders 278. Sprockets are fixedly installed at the front ends of the rotating cylinders 278. The sprockets are connected by a toothed chain belt. A temperature measuring instrument is arranged on the right side of the cooling water tank 1 and on the right side of the vertical partition plate 24. The sprockets, the toothed chain belt and the temperature measuring instrument are all prior arts and are not shown in the drawings.

[0046] The floor blank continues to move to the right under the conveyance of the roller conveyor. The part that has passed through water cooling moves to the right and enters the square tube 41. Pressurized gas is respectively introduced into the square tube 41 and the exhaust pipe 276 through an externally arranged air pump. The air is blown onto the surface of the floor blank through the air jet head 42, so as to cool the floor blank by air and accelerate the drying of its surface at the same time. The cooling water that has contacted and exchanged heat with the floor blank drips downward onto the surface of the inclined guide plate 241. Under the action of gravity, the heat-exchanged cooling water enters the space on the upper surface of the horizontal partition plate 21 that cooperates with the cooling water tank 1. Most of the heat-exchanged cooling water is located on the left side of the vertical partition plate 24. When a small amount of cooling water that has not flowed down in time reaches near the air jet head 42 during the movement of the floor blank, it drips onto the right side of the vertical partition plate 24 under the action of wind force and gravity. At the same time, the valve two 26 on the communicating pipe 25 is opened, so that the cooling water on the left side of the vertical partition plate 24 flows to the right side of the vertical partition plate 24. When the content of the cooling water on the right side of the vertical partition plate 24 reaches the amount that can be used for cooling, the valve two 26 is closed. A large amount of the cooling water on the surface of the floor blank enters the cooling water tank 1, and a small amount flows leftward along the floor blank and drips onto the ground to the left of the cooling water tank 1. Since the amount is small, it can be ignored or a water tank can be set up for recovery.

[0047] Refer to Figure 4 , at the lower end of the horizontal partition plate 21, fixed cylinders 211 are uniformly and fixedly installed along its length. A floating plate 212 is connected to the fixed cylinders 211 in a vertically sliding manner. The floating plate 212 is of a hollow structure.

[0048] Refer to Figure 1 , on the cooling water tank 1 and at both the front and rear ends of the floating plate 212, rectangular grooves are provided, and transparent glasses 11 are fixedly installed in the rectangular grooves.

[0049] At this time, an externally installed motor drives the rotating shaft 271 to rotate, thereby driving the circular ring conveying plate 273 to rotate. The water containing tank 274 on the circular ring conveying plate 273 takes the cooling water on the right side of the vertical partition plate 24 out of the water surface, making it contact with the air discharged from the exhaust port 277 on the exhaust pipe 276 to accelerate its cooling. At the same time, the gas flow is accelerated through the ventilation slot 275 to further accelerate the cooling rate of the cooling water. The stirring plate 279 is driven to rotate by the rotating cylinder 278 to stir the cooling water, ensuring that the cooling water on the right side of the vertical partition plate 24 is completely cooled down. After a period of time, it is measured by a temperature measuring instrument. When the temperature of the cooling water on the right side of the vertical partition plate 24 reaches the initial temperature of the cooling water, the first valve 23 is opened to make the cooled cooling water flow to the lower part of the horizontal partition plate 21. Since a part of the cooling water will evaporate during air cooling, the total amount of the cooling water in the cooling water tank 1 will gradually decrease, resulting in a gradual decrease in the amount of the cooling water under the horizontal partition plate 21. The downward displacement distance of the floating plate 212 can be observed through the transparent glass 11. When the displacement change reaches the maximum change value, cooling water is replenished into the space in the cooling water tank 1 and under the horizontal partition plate 21 through the water replenishing pipe 30. When the amount of the floor blanks to be cooled is small, a connecting channel is provided at the front end of the cooling water tank 1 and under the horizontal partition plate 21, and the other end of the connecting channel is fixedly connected to the water pipe 35. When the amount of the floor blanks to be cooled is large, a connecting channel is provided between the water pipe 35 and an external cooling water source. The cooling water under the horizontal partition plate 21 is only used by the first spraying rack 32. At this time, the amount of the cooling water after heat exchange above the horizontal partition plate 21 increases relatively fast. Most of the cooling water after heat exchange is sent to an externally installed cooling tower through the drain pipe 29 for cooling. Since local eddies or stagnant areas formed during the flow of the cooling water have an area smaller than the lower surface of the floor blank, compared with the method of cooling the lower surface of the floor blank with the cooling water under the horizontal partition plate 21, the heat exchange utilization rate of the cooling water is lower when completely using external cooling water to cool the upper and lower surfaces of the floor blank, and the working burden of the cooling tower is increased.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "middle part", "upper", "lower", "front", "rear", "right", "left", "top", "bottom", "inner", "outer", "end", "axial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0051] In addition, the terms "first", "second", "No. 1", "No. 2", "one", and "two" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0052] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A high-strength wood-plastic floor processing method, characterized in that , including the following steps; S1, material preparation: preparing wood powder, plastic particles and additives; S2. Mixing and stirring: fully mix the wood powder, plastic particles and additives according to the proportion to form a premix; S3, extrusion molding: heating the premix to melt and plasticize, continuing to mix after plasticization, and then extruding to form a floor blank; S4, cooling and shaping: the extruded floor blank is cooled and shaped, so that the floor blank is quickly solidified; S5. Surface treatment, cutting and packaging: After cooling and shaping, the surface of the floor blank is sanded, and then painted. Then the floor is cut and packaged with plastic film after quality inspection. The step S4 is completed by using a cooling device, the cooling device includes a cooling water tank, a partition unit is arranged at the inner end of the cooling water tank, a water cooling unit for water cooling the floor blank is arranged on the left side of the cooling water tank, and an air cooling unit for air cooling the floor blank and accelerating the drying of its surface is arranged on the right side of the cooling water tank; The partition unit includes a horizontal partition plate, which is fixedly installed at the inner end of the cooling water trough, a reflux trough is opened on the right side of the horizontal partition plate, and a valve one is fixedly installed in the reflux trough, a vertical partition plate is fixedly installed at the upper end of the horizontal partition plate, and the front and rear ends of the vertical partition plate are fixedly connected to the cooling water trough, a connecting pipe is fixedly installed in the middle of the lower side of the vertical partition plate, and a valve two is fixedly installed at the inner end of the connecting pipe, and a cooling rack for cooling the cooling water after heat exchange is arranged on the right side of the inner end of the cooling water trough.

2. A high-strength wood-plastic floor processing method according to claim 1, characterized in that: A guide frame for guiding the limiting floor blank is arranged on the left side of the inner end of the cooling water trough, a drainage pipe is fixedly installed on the left end of the cooling water trough and located on the upper side of the horizontal partition plate, and a water supply pipe is fixedly installed on the left end of the cooling water trough and located on the lower side of the horizontal partition plate.

3. A method for processing high-strength wood plastic flooring according to claim 2, characterized in that: An inclined guide plate is fixedly installed at the left end of the vertical partition plate, and the front and rear ends of the inclined guide plate are fixedly connected to the cooling water tank.

4. A method for processing high-strength wood plastic flooring according to claim 3, characterized in that: The water cooling unit includes a vertical pipe, and the vertical pipe is fixedly installed on the inclined guide plate and the left side of the horizontal partition plate. A water spray rack 1 is fixedly installed at the inner end of the cooling water trough and directly above the vertical pipe, a water pump is fixedly installed at the lower end of the water spray rack, a waterproof cover is fixedly installed at the upper end of the water pump, the water pump is fixedly connected to the vertical pipe, a water spray rack 2 is fixedly installed at the upper end of the cooling water trough through an inverted L-shaped plate, and a water pipe is fixedly installed at the upper end of the water spray rack 2.

5. A high-strength wood plastic floor processing method according to claim 1, characterized in that: The air cooling unit includes a U-shaped tube, and the U-shaped tubes evenly arranged from right to left are fixedly installed on the upper right end of the cooling water tank through a connecting plate, and inclined nozzles are evenly fixedly installed along the left end of the U-shaped tube, and the nozzles of the nozzles are facing the middle. A connecting tube 1 is fixedly installed between the lower left end of the rightmost U-shaped tube and the adjacent U-shaped tube, and a connecting tube 2 is fixedly installed between the upper left end of the U-shaped tube in the middle and the leftmost U-shaped tube.

6. A method for processing high-strength wood plastic flooring according to claim 2, characterized in that: The water spray rack 1 includes a W-shaped pipe rack, which is fixedly installed at the inner end of the cooling water trough and directly above the vertical pipe. The upper ends of the water pipes arranged in the front and rear directions on the W-shaped pipe rack are evenly fixedly installed with nozzles along the linear direction, and the nozzles adjacent to each other on the left and right are staggered. The structure of the water spray rack 2 is the same as that of the water spray rack 1, except that the nozzle setting direction of the water spray rack 2 is opposite to that of the nozzle setting direction of the water spray rack 1.

7. A method for processing high-strength wood plastic flooring according to claim 2, characterized in that: The cooling rack includes a rotating shaft, which is rotatably connected to the right side of the cooling water trough and located on the upper side of the horizontal partition plate, and a fixed rod group is evenly fixedly installed on the left outer end of the rotating shaft along the linear direction thereof, and each fixed rod group is composed of connecting rods evenly arranged along the circumference of the rotating shaft, and a circular conveying plate is commonly fixedly installed on the connecting rods on the same fixed rod group at the end away from the rotating shaft, and a water tank is evenly opened on the circular conveying plate at the end away from the rotating shaft, and ventilation grooves are symmetrically opened on the cooling water trough and located on the front and back of the circular conveying plate, an exhaust pipe is fixedly installed on the right side of the vertical partition plate, and exhaust ports are evenly opened at the lower end of the exhaust pipe and located directly above the circular conveying plate, and a rotating cylinder is evenly connected to the right side of the cooling water trough and located below the rotating shaft along the linear direction from right to left, and a stirring plate is evenly fixedly installed on the outer end of the rotating cylinder along the circumference thereof.

8. A method for processing high-strength wood plastic flooring according to claim 2, characterized in that: The guide frame includes a guide column, which is rotatably connected to the front and rear sides of the left inner end of the cooling water trough, and a bidirectional screw is rotatably connected to the middle of the guide column. One end of the bidirectional screw penetrates the side wall of the cooling water trough, and a circular plate is symmetrically threaded on the front and rear of the bidirectional screw. A connecting block that penetrates the guide column is evenly fixedly installed on the outer end of the circular plate along its circumference, and an annular pressure plate is fixedly connected to the end of the connecting block on the same side away from the circular plate.

9. A method for processing high-strength wood plastic flooring according to claim 2, characterized in that: The lower end of the horizontal partition plate is evenly and fixedly installed with a fixed cylinder along its linear direction, and a floating plate is connected to the fixed cylinder for upward and downward sliding movement, and the floating plate is a hollow structure.

10. A method for processing high-strength wood plastic flooring according to claim 9, characterized in that: Rectangular grooves are provided on the cooling water tank and at both ends of the floating plate, and transparent glass is fixedly installed in the rectangular grooves.

Images