A fiberboard production method, system, intelligent terminal and storage medium

Abstract

The application relates to a fiberboard production method, a system, an intelligent terminal and a storage medium, relates to the fiberboard production process field, and the method comprises the following steps: carrying out flattening treatment on a lower plate; laying a fiber filler on the lower plate to form a fiber mat layer on the lower plate; carrying out pre-pressing treatment on the lower plate and the fiber mat layer; laying an upper plate on the fiber mat layer; carrying out hot-pressing treatment on the upper plate, the fiber mat layer and the lower plate to obtain a fiberboard finished product; and carrying out cutting treatment and stacking treatment on the fiberboard finished product. The application has the effects of simplifying the manufacturing process of the fiberboard and improving the quality of the fiberboard.

Description

Technical Field

[0001] This application relates to the field of fiberboard production processes, and in particular to a fiberboard production method, system, smart terminal, and storage medium. Background Technology

[0002] With the rapid development of the textile industry, the consumption of fiber materials has increased dramatically, generating a large amount of waste fiber materials. If these waste fiber materials are not properly disposed of, they will not only occupy land resources but may also pollute the environment. Therefore, fiber recycling is of great significance for achieving resource conservation, environmental protection, and sustainable development. Among these methods, the most common way to recycle waste fiber materials is by manufacturing fiberboard.

[0003] The relevant technology first crushes and mixes the fibers in the clothing with glue and then heat-presses them into a fiber pad. Then, wooden boards are added to the top and bottom sides of the fiber pad to form a fiberboard with thickness.

[0004] Regarding the aforementioned technologies, adhesives need to be added during the manufacturing of the fiber pad, which makes it easy for it to stick to the equipment surface. When the fiber pad is lifted, it is prone to breakage, affecting subsequent operation procedures. Summary of the Invention

[0005] In order to simplify the manufacturing process of fiberboard and improve the quality of fiberboard, this application provides a fiberboard production method, system, smart terminal and storage medium.

[0006] In a first aspect, this application provides a method for producing fiberboard, employing the following technical solution:

[0007] A method for producing fiberboard, comprising:

[0008] The lower layer of material is flattened.

[0009] Fiber filler is laid on the lower plate to form a fiber pad layer on the lower plate;

[0010] The lower sheet and the fiber pad are pre-compressed.

[0011] A top layer of board is laid on the fiber mat layer;

[0012] The upper board, the fiber pad layer, and the lower board are subjected to hot pressing to obtain the finished fiberboard product;

[0013] The finished fiberboard is then cut and stacked.

[0014] By adopting the above technical solution, a fiber mat layer is laid on the lower board, and after pre-pressing, an upper board is laid on the fiber mat layer. Finally, a hot-pressing process is performed to obtain the finished fiberboard. The finished fiberboard has a higher structural compactness and saves the tedious step of manually laying the upper and lower boards. The whole process is smoother, and the fiber mat layer will not stick to the device during processing, and no special lubrication treatment is required for the device.

[0015] Optionally, a first fiber filler is laid on the lower plate to form a first fiber pad layer;

[0016] A transition plate is laid on the side of the first fiber pad layer. The thickness of the transition plate is greater than a preset thickness, and the width of the transition plate is greater than a preset width.

[0017] A second fiber filler is laid on the first fiber pad and the transition plate to form a second fiber filler.

[0018] By adopting the above technical solution, a transition plate is added to the side of the fiber pad. The transition plate can tightly bond the first fiber pad and the second fiber pad, and can also solve the problem that the fiber filler is difficult to fill the side of the fiber pad.

[0019] Optionally, the first thickness of the first fiber pad layer is obtained;

[0020] Based on the first thickness, the raised area on the first fiber pad is extracted, and the first thickness corresponding to the raised area is greater than the first height threshold.

[0021] The transition plate is placed at the center of the first fiber pad layer;

[0022] A first preset pressure value is applied to the transition plate, and the transition plate is controlled to move toward the side of the first fiber pad layer;

[0023] During the movement of the transition plate, if the distance between the transition plate and the protruding area is less than a distance threshold, a second preset pressure value is applied to the transition plate until the transition plate leaves the protruding area, and the second preset value is greater than the first preset value.

[0024] By adopting the above technical solution and utilizing the laying process of the transition plate to smooth the surface of the first fiber mat layer, the first fiber mat layer can be made as flat as possible, ensuring that the thickness of the first fiber mat layer is uniform throughout. At the same time, it also facilitates the laying of the second fiber mat layer.

[0025] Optionally, after the transition plate moves to the side of the first fiber pad, a second thickness of the first fiber pad is obtained;

[0026] Based on the second thickness, the recessed area on the first fiber pad is extracted, and the second thickness corresponding to the recessed area is less than the second height threshold.

[0027] Detect the area of ​​the first region of the recessed region;

[0028] If the area of ​​the first region is greater than the area threshold, an additional amount of the second fiber filler is generated based on the area of ​​the first region.

[0029] The second fiber filler is laid in the recessed area according to the additional laying amount.

[0030] By adopting the above technical solution, a second fiber filler is laid in the recessed area according to the additional laying amount, so that the recessed area is filled with the second fiber filler, ensuring that the thickness of the second fiber pad is consistent everywhere, which is conducive to ensuring the quality of the finished fiberboard.

[0031] Optionally, a third thickness of the fiber pad layer can be obtained;

[0032] Based on the third thickness, a first target region and a second target region are extracted on the fiber pad layer, wherein the third thickness corresponding to the first target region is greater than a preset range, and the third thickness corresponding to the second target region is less than the preset range;

[0033] During the hot pressing process, the hot pressing temperature of the first target area is increased and the hot pressing pressure of the first target area is increased.

[0034] During the hot pressing process, the hot pressing temperature of the second target area is reduced and the hot pressing pressure of the second target area is increased.

[0035] By adopting the above technical solution, the first target area and the second target area in the fiber pad are determined, and the first target area and the second target area are processed accordingly in the hot pressing process, so that the thickness of the entire fiber pad remains uniform after the hot pressing process.

[0036] Optionally, during the hot pressing process, the hot pressing pressure at various points on the upper sheet material can be obtained;

[0037] Candidate regions are determined based on the hot-pressing pressure, wherein the hot-pressing pressure corresponding to the candidate region is less than a pressure threshold.

[0038] Obtain the temperature change curve of the candidate region over a historical period;

[0039] Calculate the slope of the temperature change curve and compare the slope with a preset slope;

[0040] If the slope of the curve is less than the preset slope, increase the hot-pressing pressure of the candidate region and decrease the hot-pressing temperature of the candidate region.

[0041] By adopting the above technical solution, the candidate region is determined by using the hot pressing pressure and temperature change curve, and the hot pressing pressure of the candidate region is increased and the hot pressing temperature of the candidate region is decreased, so that the thickness of the candidate region after hot pressing can reach the average thickness of the fiber pad layer.

[0042] Optionally, the area of ​​the second region of the candidate region is calculated;

[0043] If the area of ​​the second region is greater than the preset area, the reduction rate is calculated based on the slope of the curve and the area of ​​the second region.

[0044] Based on the reduction rate, the cooling rate of the candidate region is reduced.

[0045] By adopting the above technical solution, the reduction rate is calculated based on the curve slope and the area of ​​the second region, and the reduction rate is used to reduce the cooling rate of the candidate region.

[0046] Secondly, this application provides a fiberboard production system, which adopts the following technical solution:

[0047] A fiberboard production system, comprising:

[0048] The acquisition module is used to acquire the first thickness, the first height threshold, the first preset value, the second preset value, the second thickness, the area, the third thickness, the hot pressing pressure, and the temperature change curve.

[0049] A memory for storing the program of any of the above-mentioned fiberboard production methods;

[0050] A processor, a program in memory that can be loaded and executed by the processor and implement any of the above-mentioned fiberboard production methods.

[0051] By adopting the above technical solution, a fiber mat layer is laid on the lower board, and after pre-pressing, an upper board is laid on the fiber mat layer. Finally, a hot-pressing process is performed to obtain the finished fiberboard. The finished fiberboard has a higher structural compactness and saves the tedious step of manually laying the upper and lower boards. The whole process is smoother, and the fiber mat layer will not stick to the device during processing, and no special lubrication treatment is required for the device.

[0052] Thirdly, this application provides a smart terminal, which adopts the following technical solution:

[0053] A smart terminal includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed by any of the methods described above.

[0054] By adopting the above technical solution, a fiber mat layer is laid on the lower board, and after pre-pressing, an upper board is laid on the fiber mat layer. Finally, a hot-pressing process is performed to obtain the finished fiberboard. The finished fiberboard has a higher structural compactness and saves the tedious step of manually laying the upper and lower boards. The whole process is smoother, and the fiber mat layer will not stick to the device during processing, and no special lubrication treatment is required for the device.

[0055] Fourthly, this application provides a computer storage medium capable of storing corresponding programs, which facilitates the simplification of fiberboard manufacturing processes and improves fiberboard quality. The technical solution adopted is as follows:

[0056] A computer-readable storage medium storing a computer program that can be loaded by a processor and executed in any of the fiberboard production methods described above.

[0057] By adopting the above technical solution, a fiber mat layer is laid on the lower board, and after pre-pressing, an upper board is laid on the fiber mat layer. Finally, a hot-pressing process is performed to obtain the finished fiberboard. The finished fiberboard has a higher structural compactness and saves the tedious step of manually laying the upper and lower boards. The whole process is smoother, and the fiber mat layer will not stick to the device during processing, and no special lubrication treatment is required for the device.

[0058] In summary, this application includes at least one of the following beneficial technical effects:

[0059] 1. A fiber mat layer is laid on the lower board, and after pre-pressing, an upper board is laid on the fiber mat layer. Finally, a hot-pressing process is performed to obtain the finished fiberboard. The finished fiberboard has a higher structural compactness and saves the tedious step of manually laying the upper and lower boards. The whole process is smoother, and the fiber mat layer will not stick to the equipment during processing, and no special lubrication treatment is required for the equipment.

[0060] 2. Add a transition plate to the side of the fiber pad. The transition plate can make the first fiber pad and the second fiber pad tightly bonded together, and can also solve the problem that the fiber filler is difficult to fill the side of the fiber pad.

[0061] 3. By using the transition board to level the surface of the first fiber mat layer, the first fiber mat layer can be made as flat as possible, ensuring that its thickness is uniform throughout. This also facilitates the laying of the second fiber mat layer. Attached Figure Description

[0062] Figure 1 This is a schematic flowchart of a fiberboard production method provided in an embodiment of this application.

[0063] Figure 2 This is a schematic diagram of a fiberboard production method provided in an embodiment of this application.

[0064] Figure 3 This is a schematic diagram of a fiberboard side gap provided in an embodiment of this application.

[0065] Figure 4 This is a schematic flowchart of a fiber filler laying method provided in an embodiment of this application.

[0066] Figure 5 This is a structural schematic diagram of a fiberboard provided in an embodiment of this application.

[0067] Figure 6 This is a flowchart illustrating a method for laying transition plates according to an embodiment of this application.

[0068] Figure 7 This is a schematic flowchart of a method for laying a second fiber filler provided in an embodiment of this application.

[0069] Figure 8 This is a schematic flowchart of a hot pressing method provided in an embodiment of this application. Figure 1 .

[0070] Figure 9 This is a schematic flowchart of a hot pressing method provided in an embodiment of this application. Figure 2 .

[0071] Figure 10 This is a schematic flowchart of a hot pressing method provided in an embodiment of this application. Figure 3 .

[0072] Figure 11 This is a schematic diagram of the structure of a fiberboard production system provided in an embodiment of this application. Detailed Implementation

[0073] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figures 1 to 11 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0074] This application discloses a schematic flowchart of a fiberboard production method. (Refer to...) Figure 1 The method includes:

[0075] Step S101: Flatten the lower layer of material.

[0076] Flattening treatment includes, but is not limited to, at least one of rolling treatment, cold flattening treatment, hot flattening treatment, and mechanical stretching treatment.

[0077] Furthermore, after flattening the lower layer of material, the surface flatness of the lower layer is checked. If the surface flatness falls within the preset flatness range, it indicates that the flattened lower layer meets the design standard, and subsequent steps can continue. If the surface flatness does not fall within the preset flatness range, it indicates that the flattened lower layer does not meet the design standard. Therefore, the process parameters for flattening are updated based on the difference between the surface flatness and the preset flatness range. For example, taking the flattening process as a rolling process, when the surface flatness does not fall within the preset flatness range, process parameters such as rolling time, rolling pressure, and the moving speed of the lower layer can be adjusted.

[0078] Optionally, the lower layer may be made of flexible material.

[0079] Step S102: Lay fiber filler on the lower board to form a fiber pad layer on the lower board.

[0080] In this embodiment, the fiber filler consists of waste fiber material and an adhesive. For example, the waste fiber material can be obtained by crushing waste clothing. The adhesive used is MDI (diphenylmethane diisocyanate).

[0081] Optionally, the adhesive content of the fiber filler is 2%-7%wt.

[0082] For example, as the lower sheet moves with the conveyor belt, the fiber filler is poured evenly onto the lower sheet, so that the fiber filler is evenly laid on the lower sheet.

[0083] For example, please refer to Figure 2 Fiber filler is laid on the lower board 201 to form a fiber pad 202.

[0084] Step S103: Pre-compress the lower board and fiber pad layer.

[0085] Optionally, the pre-compression treatment can be performed using cold pressing.

[0086] For example, please refer to Figure 2 The lower board 201 and the fiber pad 202 are pre-compressed to make the surface of the fiber pad 202 as flat as possible.

[0087] Step S104: Lay the upper board on the fiber mat layer.

[0088] The materials of the upper and lower layers can be the same or different.

[0089] For example, the upper sheet is made of flexible sheet, and as the lower sheet and fiber mat layer move with the conveyor belt, the upper sheet wrapped around the roller is pulled out and laid on the fiber mat layer.

[0090] For example, please refer to Figure 2 The upper board 203 is laid on the fiber pad 202.

[0091] Step S105: Hot-press the upper board, fiber pad, and lower board to obtain the finished fiberboard.

[0092] Optional process parameters related to hot pressing are: transfer speed of 3-12 m / min, hot pressing temperature of 160-230℃, hot pressing factor of 35 s / min, high pressure zone of 330-450 bar, low pressure zone of 160-350 bar, and hot pressing residence time of 2-15 min.

[0093] Optionally, the density of the finished fiberboard is 0.8-1.3 kg / m3 and the thickness is 0.6-1.8 cm.

[0094] For example, please refer to Figure 2 The upper board 203, fiber pad 202 and lower board 201 are subjected to hot pressing treatment, which melts the adhesive in the fiber pad 2022 and tightly bonds the upper board 203, fiber pad 202 and lower board 201 together to form the finished fiberboard 204.

[0095] Furthermore, after the hot pressing process is completed, the finished fiberboard product needs to be cooled to a preset temperature so that it can be handled by relevant personnel.

[0096] Step S106: Cut and stack the finished fiberboard.

[0097] For example, the finished fiberboard product is cut into several fiberboard products of the same shape and size. The specific parameters of the fiberboard products can be adjusted according to actual needs.

[0098] By adopting the above technical solution, a fiber mat layer is laid on the lower board, and after pre-pressing, an upper board is laid on the fiber mat layer. Finally, a hot-pressing process is performed to obtain the finished fiberboard. The finished fiberboard has a higher structural compactness and saves the tedious step of manually laying the upper and lower boards. The whole process is smoother, and the fiber mat layer will not stick to the device during processing, and no special lubrication treatment is required for the device.

[0099] In the following embodiments, since the fiber filler is obtained by crushing waste clothing, the fiber filler particles are relatively coarse. When the fiber filler is laid on the lower layer board, the sides of the lower layer board are often not completely filled with fiber filler, resulting in gaps and affecting the structural compactness of the finished fiberboard. Please refer to [reference needed]. Figure 3 To address this issue, this application discloses a schematic flowchart of a method for laying fiber fillers. (Refer to...) Figure 4 The method includes:

[0100] Step S401: Lay the first fiber filler on the lower plate to form the first fiber pad layer.

[0101] The process of laying the first fiber filler on the lower layer board and Figure 1 Step S102 in the illustrated embodiment is similar and will not be described again here.

[0102] It should be noted that the thickness of the first fiber pad is less than the thickness of the fiber pad.

[0103] Step S402: Lay a transition plate on the side of the first fiber pad layer. The thickness of the transition plate is greater than the preset thickness, and the width of the transition plate is greater than the preset width.

[0104] The width of the transition plate corresponds to the direction perpendicular to the aforementioned side.

[0105] In some other embodiments, gaps are more likely to appear closer to the side edge, and the size of the gap is also larger closer to the side edge. Therefore, the thickness of any point on the transition plate is negatively correlated with the distance from that point to the side edge; in other words, the closer any point on the transition plate is to the side edge, the smaller the thickness corresponding to that point.

[0106] Step S403: Lay the second fiber filler on the first fiber pad and the transition plate to form the second fiber filler.

[0107] The process of laying the first fiber filler on the first fiber pad and the transition plate is as follows Figure 1 Step S102 in the illustrated embodiment is similar and will not be described again here.

[0108] For example, please refer to Figure 5In the finished fiberboard product, the side is composed of a lower layer 201, a first fiber pad 2021, a transition layer 301, a second fiber pad 2022, and an upper layer 203. On one hand, the transition layer fills some of the gaps on the side, improving the structural compactness of the finished fiberboard product. On the other hand, the thinner first fiber pad allows the adhesive in it to better contact the lower and transition layers, thus improving the adhesion between them. Similarly, the second fiber pad also improves the adhesion between the upper and transition layers, resulting in a higher structural compactness of the finished fiberboard product. Furthermore, ensuring a certain thickness in the finished fiberboard product enhances its overall strength.

[0109] By adopting the above technical solution, a transition plate is added to the side of the fiber pad. The transition plate can tightly bond the first fiber pad and the second fiber pad, and can also solve the problem that the fiber filler is difficult to fill the side of the fiber pad.

[0110] In the following embodiments, when laying the transition plate, the surface of the first fiber mat layer can also be leveled to make it as flat as possible, which is beneficial for the subsequent laying of the second fiber mat layer. Therefore, this application discloses a flowchart of a method for laying a transition plate. (Refer to...) Figure 6 The method includes:

[0111] Step S601: Obtain the first thickness of the first fiber pad.

[0112] For example, a first rangefinder is provided on the first fiber pad layer to obtain a first reading of the first rangefinder; the difference between the preset height and the first reading is calculated to obtain the first thickness.

[0113] Step S602: Based on the first thickness, extract the raised area on the first fiber pad, where the first thickness corresponding to the raised area is greater than the first height threshold.

[0114] In some embodiments, the first height threshold is a preset empirical value.

[0115] In some embodiments, a first thickness is obtained at various points on the first fiber pad. The average value of the first thickness is calculated to obtain a first height threshold.

[0116] For example, the surface of the first fiber pad is scanned to obtain a first surface model of the first fiber pad, which describes the surface shape of the first fiber pad. The raised areas on the first fiber pad are then obtained using the first surface model.

[0117] Step S603: Place the transition plate at the center of the first fiber pad layer.

[0118] The center position of the first fiber pad refers to the position of the centerline along the length of the first fiber pad.

[0119] Step S604: Apply a first preset pressure value to the transition plate and control the transition plate to move toward the side of the first fiber pad layer.

[0120] The first preset value is a pre-defined empirical value. Relevant personnel can adjust the specific value of the first preset value according to actual needs.

[0121] As the transition plate moves toward the side of the first fiber pad, and a first preset pressure value is applied to the transition plate, the transition plate will flatten the surface of the first fiber pad, making the surface of the first fiber pad as flat as possible.

[0122] For example, two transition plates are placed abutting each other at the center of the first fiber pad, with one transition plate moving toward one side of the first fiber pad and the other transition plate moving toward the other side of the second fiber pad.

[0123] Step S605: During the movement of the transition plate, if the distance between the transition plate and the raised area is less than the distance threshold, apply a second preset pressure value to the transition plate until the transition plate leaves the raised area and the second preset value is greater than the first preset value.

[0124] The distance threshold is a preset empirical value.

[0125] When the transition plate approaches the raised area, a second preset pressure value is applied to the transition plate. Therefore, the transition plate will use the second preset pressure value to act on the raised area, and the second preset pressure value can make the raised area as flat as possible.

[0126] By adopting the above technical solution and utilizing the laying process of the transition plate to smooth the surface of the first fiber mat layer, the first fiber mat layer can be made as flat as possible, ensuring that the thickness of the first fiber mat layer is uniform throughout. At the same time, it also facilitates the laying of the second fiber mat layer.

[0127] In the following embodiments, the laying of the second fiber filler is affected by the first fiber mat layer. For example, the surface of the first fiber mat layer has recessed areas. These recessed areas need to be considered when laying the second fiber mat layer to avoid the final fiber mat layer also having recessed areas. Recessed areas will affect the hot-pressing process, thereby leading to a decrease in the quality of the finished fiberboard. Therefore, this application discloses a schematic flowchart of a method for laying a second fiber filler. (Refer to...) Figure 7 The method includes:

[0128] Step S701: After the transition plate moves to the side of the first fiber pad, the second thickness of the first fiber pad is obtained.

[0129] For example, a second rangefinder is provided on the first fiber mat layer to obtain a second reading of the second rangefinder; the difference between the preset height and the second reading is calculated to obtain the second thickness of the first fiber mat layer.

[0130] Step S702: Based on the second thickness, extract the recessed area on the first fiber pad layer, where the second thickness corresponding to the recessed area is less than the second height threshold.

[0131] In some embodiments, the second height threshold is a preset empirical value.

[0132] In some embodiments, a second thickness is obtained at various points on the first fiber pad. The average value of the second thickness is calculated to obtain a second height threshold.

[0133] For example, the surface of the first fiber pad is scanned to obtain a second surface model of the first fiber pad. The recessed areas on the first fiber pad are then obtained using the second surface model.

[0134] It should be noted that this embodiment only obtains the recessed area on the first fiber pad layer, and does not obtain the raised area. This is because the upper board, fiber pad layer and lower board need to be hot-pressed in the future. The hot-pressing process is more sensitive to the recessed area. If the depth of the recessed area is too deep, there is a high probability that the fiber pad layer will be incompletely hot-pressed inside the finished fiberboard after the hot-pressing process, which will reduce the structural compactness of the finished fiberboard and affect the quality of the finished fiberboard.

[0135] Step S703: Detect the area of ​​the first region of the depression.

[0136] Optionally, after scanning the surface of the first fiber pad to obtain a second surface model of the first fiber pad, the shape and boundary lines of the recessed region are extracted using the second surface model. An integral operation is then performed based on the aforementioned shape and boundary lines to obtain the area of ​​the first region of the recessed region.

[0137] Step S704: If the area of ​​the first region is greater than the area threshold, generate an additional amount of second fiber filler based on the area of ​​the first region.

[0138] The area threshold is a preset empirical value. Relevant personnel can adjust the area threshold according to actual needs.

[0139] For example, the depth of each location in the recessed area is extracted using the second surface model; the area of ​​the first region and the depth of the recessed area are integrated to obtain the recessed volume of the recessed area; and the recessed volume is used as the additional amount of the second fiber filler.

[0140] Step S705: Lay a second fiber filler in the recessed area according to the additional amount to be laid.

[0141] For example, the sum of the additional layup amount and the preset layup amount is calculated to obtain the total layup amount for the recessed area. The second fiber filler is then laid on the recessed area according to the total layup amount.

[0142] By adopting the above technical solution, a second fiber filler is laid in the recessed area according to the additional laying amount, so that the recessed area is filled with the second fiber filler, ensuring that the thickness of the second fiber pad is consistent everywhere, which is conducive to ensuring the quality of the finished fiberboard.

[0143] In the following embodiments, if uneven areas are detected on the surface of the fiber pad layer before hot pressing of the upper board, fiber pad layer, and lower board, the parameters used for hot pressing can be adjusted. Therefore, this application discloses a schematic flowchart of a hot pressing method. Figure 1 . Reference Figure 8 The method includes:

[0144] Step S801: Obtain the third thickness of the fiber pad layer.

[0145] For example, a third rangefinder is provided on the fiber pad layer to obtain a third reading of the third rangefinder; the difference between the preset height and the third reading is calculated to obtain the third thickness.

[0146] Furthermore, the average fiber size of the fiber pad is obtained. The FEM (Finite Element Method) model is then used to process the average fiber size and the third thickness, thereby correcting the third thickness.

[0147] Step S802: Based on the third thickness, extract the first target area and the second target area on the fiber pad layer. The third thickness corresponding to the first target area is greater than the preset range, and the third thickness corresponding to the second target area is less than the preset range.

[0148] The preset range is a preset empirical value.

[0149] The third thickness of the first target region is greater than the preset range. This means that the thickness of the first target region is relatively large, which may lead to localized excessive accumulation or unevenness of material. For the first target region, additional processing methods are needed in the subsequent hot pressing process to eliminate the adverse effects of the excessive thickness.

[0150] The third thickness of the second target region is less than the preset range. This indicates that the thickness of the second target region is relatively small, which may lead to uneven material distribution and localized weaknesses. For the second target region, additional processing measures are needed in subsequent hot pressing to ensure the material's performance stability throughout the entire processing.

[0151] Step S803: During the hot pressing process, increase the hot pressing temperature of the first target area and increase the hot pressing pressure of the first target area.

[0152] For the first target area, the temperature and pressure of the hot-pressing process will be appropriately increased. This treatment strategy is mainly to address the problem of excessive thickness in the first target area. Increasing the hot-pressing temperature can accelerate the plastic deformation of the fiber filler, allowing the excessively thick areas of the fiber pad to expand more evenly and reducing localized overthrow. At the same time, increasing the hot-pressing pressure can promote further compaction of the fiber filler, reduce the thickness of the fiber pad, and ensure its flatness and uniformity.

[0153] Furthermore, the first mapping table pre-records the mapping relationship between the thickness of the first target area and the hot-pressing temperature and pressure. During the hot-pressing process, the hot-pressing temperature and pressure on the first target area are obtained through the first mapping table.

[0154] Step S804: During the hot pressing process, reduce the hot pressing temperature of the second target area and increase the hot pressing pressure of the second target area.

[0155] The thinner thickness of the second target region may be due to uneven material distribution or insufficient local pressure, resulting in a weak area. Lowering the hot-pressing temperature in this region can prevent premature softening or flow of the material, ensuring that this part maintains appropriate structural strength during subsequent processing. Simultaneously, increasing the hot-pressing pressure in this region helps to compact its weak points, increasing its density and thus improving the overall uniformity of the material.

[0156] Furthermore, the second mapping table pre-records the mapping relationship between the thickness of the second target region and the hot-pressing temperature and pressure. During the hot-pressing process, the hot-pressing temperature and pressure on the second target region are obtained through the second mapping table.

[0157] By adopting the above technical solution, the first target area and the second target area in the fiber pad are determined, and the first target area and the second target area are processed accordingly in the hot pressing process, so that the thickness of the entire fiber pad remains uniform after the hot pressing process.

[0158] In the following embodiments, during the actual hot pressing process, parameters such as hot pressing temperature and pressure need to be constantly monitored to ensure that the hot pressing process can be performed normally. This application discloses a flowchart of a hot pressing method. Figure 2 . Reference Figure 9 The method includes:

[0159] Step S901: During the hot pressing process, obtain the hot pressing pressure at various points on the upper plate.

[0160] Optionally, the hot pressing equipment includes an upper hot pressing plate and a lower hot pressing plate. The upper hot pressing plate corresponds to the upper layer of the sheet material, and the lower hot pressing plate corresponds to the lower layer of the sheet material. The upper layer of the sheet material, the fiber pad layer, and the lower layer of the sheet material are sandwiched between the upper hot pressing plate and the lower hot pressing plate. The upper hot pressing plate and the lower hot pressing plate interact to clamp the upper layer of the sheet material, the fiber pad layer, and the lower layer of the sheet material.

[0161] Furthermore, a pressure sensor array is installed on the upper hot press plate, distributed at multiple points on the upper hot press plate, to obtain the hot pressing pressure at various points on the upper plate in real time.

[0162] In some other embodiments, the hot-pressing pressure at various points on the lower sheet material can also be obtained.

[0163] Step S902: Determine the candidate region based on the hot-pressing pressure, where the hot-pressing pressure corresponding to the candidate region is less than the pressure threshold.

[0164] Optionally, the pressure threshold is a preset empirical value.

[0165] Optionally, the average value of the hot-pressing pressure at various points on the upper plate can be calculated and used as the pressure threshold.

[0166] Step S903: Obtain the temperature change curve of the candidate region over historical periods.

[0167] The length of the historical period is a preset empirical value.

[0168] Optionally, the historical period is determined based on the time when the hot-pressing pressure is acquired. For example, if the hot-pressing pressure is acquired at 12:00, the historical period is from 11:00 to 12:00.

[0169] Optionally, the historical time period is determined based on the duration of the hot-pressing process on the upper layer of the sheet material. For example, if the hot-pressing pressure is acquired at 13:00, and the upper layer of the sheet material enters the hot-pressing equipment at 11:30, then 11:30 to 13:00 is set as the historical time period.

[0170] Step S904: Calculate the slope of the temperature change curve and compare the slope with the preset slope.

[0171] The preset slope is a preset empirical value.

[0172] Optionally, the slope of the temperature change curve at each time point within the historical period can be calculated. The mean of the slopes at each of the aforementioned time points is then calculated to obtain the curve slope.

[0173] Optionally, the slope of the temperature change curve at each time point within the historical period can be calculated. The slope that appears most frequently at each time point is taken as the curve slope.

[0174] Step S905: If the slope of the curve is less than the preset slope, increase the hot-pressing pressure of the candidate region and decrease the hot-pressing temperature of the candidate region.

[0175] Since the slope of the temperature change curve in the candidate region is less than the preset value, it means that the region was not heated sufficiently or the temperature rose too slowly during hot pressing, requiring adjustment measures. In this step, based on the abnormal temperature change, the hot pressing pressure in this region needs to be increased first. Increasing the hot pressing pressure can accelerate the compaction of the fiber filler, promote heat conduction within the fiber filler, and improve the temperature rise rate of the candidate region. However, while increasing the hot pressing pressure, the control of the hot pressing temperature also needs to be adjusted. Generally, moderately reducing the hot pressing temperature can prevent excessive softening of the fiber filler, keeping it within a suitable temperature range for hot pressing. At the same time, increasing the hot pressing pressure can ensure more uniform compaction and heating of the material. Therefore, by adjusting both the hot pressing pressure and the hot pressing temperature, the temperature change in the candidate region can be improved, the uniformity of the hot pressing process can be promoted, and the physical properties of the candidate region can be enhanced.

[0176] By adopting the above technical solution, the candidate region is determined by using the hot pressing pressure and temperature change curve, and the hot pressing pressure of the candidate region is increased and the hot pressing temperature of the candidate region is decreased, so that the thickness of the candidate region after hot pressing can reach the average thickness of the fiber pad layer.

[0177] In the following embodiments, when processing the candidate region, the cooling rate of the candidate region also needs to be adjusted accordingly so that it can be cooled at a specific cooling rate. This application discloses a flowchart of a hot pressing process. Figure 3 . Reference Figure 10 The method includes:

[0178] Step S1001: Calculate the area of ​​the second region of the candidate region.

[0179] Optionally, the shape and boundary lines of the candidate region are obtained, and an integral operation is performed according to the aforementioned shape and boundary lines to obtain the area of ​​the second region of the candidate region.

[0180] Step S1002: If the area of ​​the second region is greater than the preset area, the reduction rate is calculated based on the slope of the curve and the area of ​​the second region.

[0181] Optionally, the corresponding rate of decrease can be found in a preset rate mapping table based on the slope of the curve and the area of ​​the second region.

[0182] Step S1003: Reduce the cooling rate of the candidate region according to the reduction rate.

[0183] The goal of this step is to make the temperature change process in the candidate region more gradual, thereby ensuring the mechanical properties, surface quality, and structural stability of the material. If the cooling rate is too fast, a large temperature difference often occurs during the cooling process of the fiber filler. If the temperature difference changes too rapidly, the fiber filler may crack or deform due to stress concentration. Therefore, precisely controlling the cooling rate during the cooling process is one of the key factors in avoiding adverse reactions in the fiber filler.

[0184] By adopting the above technical solution, the reduction rate is calculated based on the curve slope and the area of ​​the second region, and the reduction rate is used to reduce the cooling rate of the candidate region.

[0185] Based on the same inventive concept, this application provides a fiberboard production system. Please refer to [link / reference]. Figure 11 The system includes:

[0186] The acquisition module 1101 is used to acquire the first thickness, the first height threshold, the first preset value, the second preset value, the second thickness, the area, the third thickness, the hot pressing pressure, and the temperature change curve;

[0187] The memory 1102 is used to store the program of the fiberboard production method of any of the above-mentioned methods;

[0188] The processor 1103 is capable of loading and executing programs in memory to implement any of the fiberboard production methods described above.

[0189] In summary, the fiberboard product is obtained by laying a fiber pad layer on the lower board, pre-pressing it, laying the upper board layer on the fiber pad layer, and finally hot-pressing it. The finished fiberboard product has a higher structural compactness and saves the tedious step of manually laying the upper and lower boards. The whole process is smoother, and the fiber pad layer will not stick to the equipment during processing, and no special lubrication treatment is required for the equipment.

[0190] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0191] This application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and executed as a fiberboard production method.

[0192] Computer storage media include, for example, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media that can store program code.

[0193] Based on the same inventive concept, embodiments of this application provide a smart terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed in a fiberboard production method.

[0194] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0195] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. A method for producing a fiberboard, characterized by, The method comprises: flatting the lower layer of board; laying fiber filler on the lower layer of board to form a fiber mat layer on the lower layer of board; pre-pressing the lower layer of board and the fiber mat layer; laying an upper layer of board on the fiber mat layer; hot-pressing the upper layer of board, the fiber mat layer and the lower layer of board to obtain a fiber board product; cutting and stacking the fiber board product; the laying of fiber filler on the lower layer of board comprises: laying first fiber filler on the lower layer of board to form a first fiber mat layer; laying a transition board on the side of the first fiber mat layer, the thickness of the transition board being greater than a preset thickness, and the width of the transition board being greater than a preset width; laying second fiber filler on the first fiber mat layer and the transition board to form a second fiber filler; obtaining a first thickness of the first fiber mat layer; extracting a raised area on the first fiber mat layer according to the first thickness, the first thickness corresponding to the raised area being greater than a first height threshold; placing the transition board at the center of the first fiber mat layer; applying a first preset value of pressure to the transition board and controlling the transition board to move towards the side of the first fiber mat layer; during the movement of the transition board, applying a second preset value of pressure to the transition board when the distance between the transition board and the raised area is less than a distance threshold, until the transition board leaves the raised area, the second preset value being greater than the first preset value; obtaining hot-pressing pressure at different positions of the upper layer of board during hot-pressing; determining a candidate area according to the hot-pressing pressure, the hot-pressing pressure corresponding to the candidate area being less than a pressure threshold; obtaining a temperature change curve of the candidate area in a historical period; calculating the curve slope of the temperature change curve and comparing the curve slope with a preset slope; in the case where the curve slope is less than the preset slope, increasing the hot-pressing pressure of the candidate area and reducing the hot-pressing temperature of the candidate area; calculating a second area of the candidate area; in the case where the second area is greater than a preset area, calculating a reduction rate according to the curve slope and the second area; reducing the cooling rate of the candidate area according to the reduction rate.

2. The fiberboard production method according to claim 1, characterized in that, The method further comprises: after the transition board moves to the side of the first fiber mat layer, obtaining a second thickness of the first fiber mat layer; extracting a recessed area on the first fiber mat layer according to the second thickness, the second thickness corresponding to the recessed area being less than a second height threshold; detecting a first area of the recessed area; in the case where the first area is greater than an area threshold, generating an additional laying amount of the second fiber filler according to the first area; laying the second fiber filler on the recessed area according to the additional laying amount.

3. The fiberboard production method according to claim 2, characterized in that, after the pre-pressing of the lower layer of board and the fiber mat layer, the method further comprises: obtaining a third thickness of the fiber mat layer; According to the third thickness, a first target area and a second target area on the fiber mat are extracted, the first target area corresponding to the third thickness greater than a preset interval, and the second target area corresponding to the third thickness less than the preset interval; During the hot-pressing process, the hot-pressing temperature of the first target area is increased and the hot-pressing pressure of the first target area is increased; During the hot-pressing process, the hot-pressing temperature of the second target area is decreased and the hot-pressing pressure of the second target area is increased.

4. A fiberboard production system characterized by, The system comprises: an acquisition module configured to acquire a first thickness, a first height threshold, a first preset value, a second preset value, a second thickness, an area of a region, a third thickness, a hot-pressing pressure, and a temperature change curve; a memory configured to store a program of the fiberboard production method according to claim 1; a processor, the program in the memory being loadable and executable by the processor and implementing the fiberboard production method according to claim 1.

5. A smart terminal, characterized by a memory and a processor, the memory storing a computer program loadable and executable by the processor and implementing any one of the methods according to claims 1 to 3.

6. A computer-readable storage medium, characterized in that, a memory storing a computer program loadable and executable by the processor and implementing any one of the methods according to claims 1 to 3.

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