Efficient hot press molding process for microstructured fiberboard

Abstract

The invention relates to the field of fiberboard processing, in particular to a microstructured fiberboard high-efficiency hot-press forming process which adopts a microstructured fiberboard high-efficiency hot-press forming device which comprises a rack. The rack is provided with a conveying piece used for conveying a fiberboard to be processed and a hot-pressing piece which is arranged corresponding to the conveying piece and used for hot-pressing the fiberboard. Through continuous operation of the conveying belt and synchronous cooperation of the hot-pressing rollers, continuous conveying and hot-pressing forming of the fiberboards are achieved, the downtime in traditional intermittent production is avoided, the fiberboards can be continuously and orderly placed on the conveying belt to be subjected to batch hot-pressing forming treatment, and the fiberboard hot-pressing forming device is suitable for large-scale industrial production.

Description

Technical Field

[0001] The invention relates to the field of fiberboard processing, and in particular to a high-efficiency hot pressing molding process for a microstructured fiberboard. Background Art

[0002] Microstructured fiberboard is a new type of board material with excellent mechanical properties, heat resistance and fast preparation process. It has broad application prospects in various fields. The traditional fiberboard hot pressing molding scheme generally adopts a conventional press to press the fiberboard through external heating and direct pressing. This method can easily cause uneven heating of the board due to uneven heat transfer of the equipment during the pressing process, resulting in a large temperature gradient inside the fiberboard and uneven thermal stress, which affects the molding effect and performance of the final product.

[0003] With the development of science and technology, technicians in related fields have also made a lot of optimizations on the technical means used for hot pressing of microstructured fiberboards. In order to make a more accurate comparison, for example, a Chinese patent with publication number CN112497416A discloses a fiberboard hot pressing forming device and its working method, including a hot pressing machine, a hot pressing oil circuit, a hydraulic press and a control system. When in use, the hot pressing temperature, the movement speed and displacement of the upper pressing plate are controlled in real time, ensuring that the pressure of the hydraulic press is fully applied to the fiberboard, thereby improving the hot pressing control accuracy and improving the quality of the formed fiberboard.

[0004] However, the above fiberboard hot pressing forming equipment still has the following shortcomings in actual use: The above-mentioned equipment connects the upper pressure plate, the enclosure plate and the ball screw through the first and second slider groups to ensure that the enclosure plate and the upper pressure plate are raised and lowered synchronously, prevents the enclosure plate from reacting on the hydraulic press, and ensures that the pressure acts effectively on the fiberboard. When the above-mentioned equipment is used to perform hot press forming on the fiberboard, it is necessary to place the fiberboard to be processed between the upper pressure plate, the lower pressure plate and the enclosure plate, and then control and adjust the relative position between the upper pressure plate and the lower pressure plate to complete the hot press forming of the fiberboard. Therefore, if there are many fiberboards to be processed, the above-mentioned equipment needs to frequently adjust the relative position between the upper pressure plate and the lower pressure plate and requires intermittent shutdown at the same time so that the fiberboard can be placed therein for processing, which reduces the efficiency of hot press forming of the fiberboard.

[0005] Therefore, based on the above-stated viewpoint, there is still room for improvement in the existing technical means for hot pressing of fiberboard. Summary of the invention

[0006] In order to solve the above problems, the present invention provides an efficient hot pressing molding process for microstructured fiberboard. The efficient hot pressing molding process adopts the following efficient hot pressing molding device for microstructured fiberboard, including a frame, on which a conveying member for conveying the fiberboard to be processed and a hot pressing member for hot pressing the fiberboard arranged corresponding to the conveying member.

[0007] The conveying member comprises: The conveyor belt, the transmission limit is located on the frame, and is used to convey the fiberboard to be processed.

[0008] The hot pressing part comprises: The mounting frame is located on the frame in a V-shape, and the two vertical sections are symmetrically distributed on both sides of the conveying path of the conveyor belt.

[0009] There are several hot pressing rollers, which are respectively connected to the frame and the mounting frame in a limited position. The hot pressing rollers arranged on the frame and the mounting frame are separated up and down by the conveyor belt and arranged one by one.

[0010] The hydraulic end is limited on the frame and is used to provide driving force to drive the hot pressing roller to rise, fall and slide.

[0011] The following steps are included when the microstructured fiberboard high-efficiency hot pressing forming device is used to perform hot pressing forming on the fiberboard: S1. Place the fiberboard to be processed on a conveyor belt for transportation.

[0012] S2. When the fiberboard is conveyed to the hot pressing roller by the conveyor belt, it is heated by the hot pressing roller to provide the necessary temperature conditions for hot pressing of the fiberboard.

[0013] S3. During the conveying process of the fiberboard, the relative position distance between the hot pressing roller and the fiberboard is adjusted to adjust the pressure applied to the fiberboard for hot pressing, thereby completing the hot pressing process of the fiberboard.

[0014] Preferably, the conveyor belt is evenly spaced with a plurality of openings, and the plurality of openings are arranged corresponding to the positions of the hot pressing rollers.

[0015] Preferably, the conveying member also includes a driving shaft that is limitedly passed through the frame and arranged at both ends of the conveyor belt. The driving shaft is provided with a driving roller that is closely connected to the conveyor belt. The continuous transportation of the fiberboard is completed through the transmission cooperation between the two driving rollers and the conveyor belt.

[0016] Preferably, the hot pressing roller is symmetrically connected with a driven shaft passing through the frame and the mounting frame, wherein all the driven shafts limited on the frame and the two driving shafts are connected together through a belt transmission.

[0017] Preferably, the mounting frame is a telescopic structure, wherein the hot pressing roller limited on the mounting frame is limitedly connected to the telescopic section of the mounting frame, and the telescopic section of the mounting frame is driven by the hydraulic end to perform sliding adjustment.

[0018] Preferably, both ends of the installation frame are limit-connected with sealing plates, and the two sealing plates, the installation frame and the conveyor belt together enclose a heating chamber to heat the fiberboard passing through.

[0019] Preferably, two ends of any two upper and lower corresponding hot pressing rollers are symmetrically sleeved with synchronous pulleys, and a transmission belt is commonly connected between the two synchronous pulleys corresponding to the same side.

[0020] Preferably, the transmission belt passes through the mounting frame at one end away from the frame and is provided with a tensioning wheel. The tensioning wheels on the transmission belt at both ends of the same hot pressing roller are symmetrically arranged, and an adjusting plate is connected to the two corresponding tensioning wheels for common rotation. The adjusting plate is symmetrically provided with adjusting screws that are limited and connected to the mounting frame.

[0021] Preferably, a driven gear is sleeved on the adjusting screw, and all the driven gears on the same side are meshed with a driving gear plate.

[0022] Preferably, the mounting frame is also limitedly connected to a connecting rotating rod, a spiral groove is formed on the outside of the connecting rotating rod, a driven sliding rod is slidably engaged in the spiral groove, the driven sliding rod is driven by the hydraulic end to slide to drive the connecting rotating rod to rotate, and the connecting rotating rod is connected to a driving gear that meshes with the driving tooth plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention realizes continuous conveying and hot pressing of fiberboards through the continuous operation of the conveyor belt and the synchronous cooperation of the hot pressing rollers, avoiding the downtime in traditional intermittent production, and can continuously and orderly place the fiberboards on the conveyor belt for batch hot pressing processing, which is suitable for large-scale industrial production.

[0024] 2. The belt transmission method of the present invention drives several hot pressing rollers to rotate synchronously, ensuring that the fiberboard is subjected to uniform heat and pressure when passing through, avoiding local overheating or underheating, and deformation caused by uneven pressure, and driving the installation frame to slide up and down through the hydraulic end to achieve precise adjustment of the relative position between the two corresponding hot pressing rollers, thereby achieving precise control of the pressure applied to the fiberboard and ensuring uniform distribution of pressure during the hot pressing molding process.

[0025] 3. The present invention cooperates between the electrically heated hot pressing roller and other hollow hot pressing rollers filled with heat-conducting fluid, so that the fiberboard can be quickly preheated by the electrically heated hot pressing roller before entering the main hot pressing area, shortening the time to reach the predetermined processing temperature and improving the overall hot pressing efficiency. At the same time, the heat-conducting fluid stored in the hollow hot pressing roller continuously provides stable heat, ensuring that the temperature of the hot pressing roller is uniform and stable, improving the heat storage and transfer efficiency, and ensuring that the fiberboard can be heated quickly and evenly during the hot pressing molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a schematic diagram of the structure of the conveying part and the hot pressing part of the present invention.

[0029] Figure 3 It is a schematic structural diagram of the driving roller of the present invention.

[0030] Figure 4 It is a structural schematic diagram of the sealing plate of the present invention.

[0031] Figure 5 It is a structural schematic diagram of the synchronous pulley of the present invention.

[0032] Figure 6 It is a structural schematic diagram of the hot pressing roller of the present invention.

[0033] Figure 7 It is a structural schematic diagram of the driving tooth plate of the present invention.

[0034] Figure 8 The present invention Figure 7 A is an enlarged view of the middle image.

[0035] Fig. 9 It is a structural schematic diagram of the connecting rotating rod of the present invention.

[0036] In the figure, 1, frame; 2, conveying member; 20, conveyor belt; 200, through-hole; 21, driving shaft; 22, driving roller; 3, hot pressing member; 30, mounting frame; 31, hot pressing roller; 32, hydraulic end; 33, driven shaft; 34, sealing plate; 35, synchronous pulley; 350, transmission belt; 351, tensioning wheel; 352, adjusting plate; 353, adjusting screw; 354, driven gear; 355, driving gear plate; 36, connecting rod; 360, spiral slide; 361, driven slide rod; 362, driving gear; 363, extension block; 364, limit block; 365, reset spring; 37, conduction pipe; 370, connecting pipe. DETAILED DESCRIPTION

[0037] The following is combined with Figures 1 to 9 Embodiments of the present invention are described in detail.

[0038] The embodiment of the present application discloses an efficient hot pressing forming process for microstructured fiberboard. The present invention is mainly used in the process of hot pressing forming fiberboard, and achieves the effect of hot pressing forming fiberboard in terms of technical effect. In particular, during the hot pressing process, the fiberboard is conveyed and hot pressed at the same time by the cooperation between the conveyor belt and a number of upper and lower corresponding hot pressing rollers, thereby effectively improving the efficiency of hot pressing forming of the fiberboard. Furthermore, the present application also ensures that the fiberboard can be heated quickly and evenly by the mutual cooperation between the set hot pressing rollers, thereby effectively improving the quality of the finished product of the hot pressing forming of the fiberboard.

[0039] Example 1: Reference Figure 1 As shown, a high-efficiency hot pressing forming process for microstructured fiberboard is adopted. The high-efficiency hot pressing forming process adopts the following high-efficiency hot pressing forming device for microstructured fiberboard, including a frame 1 arranged in a U-shape, on which a conveying member 2 for conveying the fiberboard to be processed and a hot pressing member 3 for hot pressing the fiberboard arranged corresponding to the conveying member 2 are provided.

[0040] When in use, the fiberboard to be processed is placed on the conveyor belt 20 for transportation. After the fiberboard is transported to the hot pressing part 3, the pressure and temperature provided by the hot pressing part 3 cause the fiberboard to be heated and pressed at the same time, thereby achieving the effect of hot pressing and forming the fiberboard. By continuously and orderly placing the fiberboard on the conveyor 2, the effect of continuous batch hot pressing and forming of the fiberboard can be achieved, which effectively increases the processing efficiency of the hot pressing and forming of the fiberboard.

[0041] Reference Figures 1 to 3 As shown, a conveying member 2 for conveying the fiberboard to be processed and a hot pressing member 3 for hot pressing the fiberboard arranged corresponding to the conveying member 2; specifically, the conveying member 2 includes: The conveyor belt 20 is located on the frame 1 and is used to convey the fiberboard to be processed.

[0042] The hot pressing part 3 includes: The mounting frame 30 is located on the frame 1 in a U-shape, and two vertical sections are symmetrically distributed on both sides of the conveying path of the conveyor belt 20.

[0043] There are several hot pressing rollers 31, which are respectively connected to the frame 1 and the mounting frame 30 in a limited manner. The hot pressing rollers 31 set on the frame 1 and the mounting frame 30 are separated up and down by the conveyor belt 20 and are set one by one to complete the transportation and hot pressing molding of the fiberboard.

[0044] The hydraulic end 32 is limited on the frame 1 and is used to provide a driving force to drive the hot pressing roller 31 to rise, fall and slide, so as to adjust the pressure applied by the hot pressing roller 31 to the fiberboard. The hydraulic end 32 is a conventional hydraulic telescopic device, which is connected to the frame 1 through a connecting frame and is located on the upper side of the mounting frame 30 to drive the mounting frame 30 and the connected hot pressing rollers 31 to be adjusted.

[0045] When in use, the fiberboard to be processed is transported by the conveyor belt 20, and all the hot pressing rollers 31 are activated at the same time, so that the hot pressing rollers 31 are heated to provide the temperature conditions required for the hot pressing process of the fiberboard, and then the relative position distance between all the upper and lower corresponding hot pressing rollers 31 is adjusted by the hydraulic end 32, so as to adjust the pressure applied to the fiberboard according to the fiberboard to be processed. After the fiberboard is transported by the conveyor belt 20 and passes through all the hot pressing rollers 31, the hot pressing forming of the fiberboard is also completed synchronously, so as to continue the hot pressing treatment of the next fiberboard.

[0046] Reference Figure 2 and Figure 3 As shown, the conveyor belt 20 is evenly spaced with a plurality of through-holes 200, which are arranged corresponding to the positions of the hot pressing rollers 31, wherein the arc surfaces of the hot pressing rollers 31 connected to the frame 1 partially pass through the through-holes 200 to perform hot pressing treatment on the fiberboard on the conveyor belt 20. During use, after the conveyor belt 20 is driven to operate, the plurality of through-holes 200 arranged thereon are driven to rotate synchronously, so that relative position slippage is formed between the through-holes 200 and the hot pressing rollers 31.

[0047] Reference Figures 2 to 4 As shown, the conveying member 2 also includes a driving shaft 21 which is limitedly passed through the frame 1 and arranged at both ends of the conveyor belt 20. A driving roller 22 which is closely connected to the conveyor belt 20 is sleeved on the driving shaft 21. The continuous conveying of the fiberboard is completed through the transmission cooperation between the two driving rollers 22 and the conveyor belt 20.

[0048] When in use, by driving any one of the two driving shafts 21 to rotate, the driving shaft 21 drives the connected driving roller 22 and the conveyor belt 20 to rotate, and at the same time, the conveyor belt 20 also drives the other driving roller 22 and the driving shaft 21 to rotate synchronously, thereby achieving the effect of transporting the fiberboard placed on the conveyor belt 20.

[0049] Reference Figures 3 to 6As shown, the hot pressing roller 31 is symmetrically connected with a driven shaft 33 that is rotatably arranged on the frame 1 and the mounting frame 30, wherein all the driven shafts 33 limited on the frame 1 and the two driving shafts 21 are connected together through a belt transmission. When in use, the driving shaft 21 is driven to rotate, and the driving shaft 21 drives all the driven shafts 33 and the other driving shaft 21 to rotate synchronously through the belt transmission, and the driven shaft 33 rotates to drive the connected hot pressing roller 31 to rotate synchronously. At this time, since the hot pressing roller 31 is seamlessly fitted with the fiberboard when rotating, the heat is evenly transferred to avoid local overheating or underheating. At the same time, the pressure between the two corresponding hot pressing rollers 31 is evenly distributed, ensuring that the fiberboard is subjected to uniform pressure during the molding process, avoiding deformation and unevenness, and effectively improving the efficiency and quality of the hot pressing molding process of the fiberboard.

[0050] Reference Figures 2 to 4 As shown, the mounting frame 30 is a telescopic structure, wherein the hot pressing roller 31 limited on the mounting frame 30 is limitedly connected to the telescopic section of the mounting frame 30 and simultaneously slides through the fixed section arranged at the lower side of the mounting frame 30. The telescopic section of the mounting frame 30 is precisely controlled by the hydraulic end 32 to achieve sliding adjustment. During use, the telescopic section of the mounting frame 30 is driven by the hydraulic end 32 to lift and slide in the vertical direction. The sliding of the telescopic section of the mounting frame 30 drives all the connected hot pressing rollers 31 and the driven rotating shaft 33 to slide synchronously, thereby completing the adjustment of the relative position between all the two hot pressing rollers 31 corresponding to each other, that is, the effect of adjusting the pressure applied by the hot pressing roller 31 to the fiberboard.

[0051] Further, refer to Figures 2 to 4 As shown, in order to improve the heating effect of the fiberboard when passing through the hot pressing roller 31, both ends of the mounting frame 30 are limitedly connected with sealing plates 34, and the sealing plates 34 are connected to the telescopic section of the mounting frame 30, and slide synchronously with the telescopic section of the mounting frame 30. The two sealing plates 34, the mounting frame 30 and the conveyor belt 20 together enclose a heating chamber to heat the passing fiberboard.

[0052] When in use, the heat emitted by the hot pressing roller 31 after heating dissipates in the heating chamber, and the enclosed heating chamber is used to insulate the temperature environment of the fiberboard during hot pressing molding to ensure that the fiberboard is transported to the heating chamber and heated evenly, thereby improving the quality of the hot pressing molding process of the fiberboard.

[0053] As an optional implementation, the hot pressing roller 31 is also covered with a protective oil film.

[0054] Reference Figures 3 to 6 As shown, the two ends of any two corresponding hot-pressing rollers 31 are symmetrically sleeved with synchronous pulleys 35 , and a transmission belt 350 is commonly connected between the two corresponding synchronous pulleys 35 on the same side.

[0055] When in use, after driving the driving shaft 21 to rotate, the driving shaft 21 rotates through the synchronous belt to drive all the connected hot pressing rollers 31 (here only the hot pressing roller 31 connected to the frame 1 on the lower side) to rotate synchronously, and the hot pressing roller 31 rotates through the transmission belt 350 and the synchronous pulley 35 to drive another hot pressing roller 31 corresponding to the upper and lower sides to rotate synchronously, so that when the fiberboard to be processed passes through, uniform pressure is applied to the fiberboard synchronously from top to bottom, thereby providing the finished product quality of the fiberboard hot pressing molding.

[0056] Reference Figures 3 to 7 As shown, one end of the transmission belt 350 away from the frame 1 passes through the mounting frame 30 and is penetrated by a tensioning wheel 351. The tensioning wheels 351 on the transmission belt 350 at both ends of the same hot pressing roller 31 are symmetrically arranged, and an adjusting dial plate 352 is connected to rotate together between the two corresponding tensioning wheels 351. The adjusting dial plate 352 is symmetrically penetrated by an adjusting screw 353 which is limitedly connected to the mounting frame 30.

[0057] When in use, by rotating the adjusting screw 353, the adjusting plate 352 is slidably adjusted along the adjusting screw 353 in the vertical direction through the thread on the connected adjusting screw 353. The movement of the adjusting plate 352 drives the connected tensioning wheel 351 to slide synchronously. The sliding of the tensioning wheel 351 can adjust the tensioning amplitude of the connected transmission belt 350, thereby facilitating the synchronous rotation of the two connected hot pressing rollers 31.

[0058] Reference Figures 5 to 9 As shown, in order to synchronously drive all the adjusting screws 353 to rotate synchronously, so as to achieve the effect of tensioning and adjusting the synchronous pulleys 35 on all the transmission belts 350, a driven gear 354 is sleeved on the adjusting screw 353, and all the driven gears 354 on the same side are meshed with a driving toothed plate 355. When in use, by driving the driving toothed plate 355 to slide in the horizontal direction, the sliding of the driving toothed plate 355 drives all the meshed driven gears 354 to rotate synchronously, and the rotation of the driven gear 354 drives the connected adjusting screws 353 to rotate synchronously, so as to achieve the effect of driving all the adjusting screws 353 to rotate synchronously.

[0059] Reference Figures 7 to 9As shown, the mounting frame 30 is also limitedly connected with a connecting rod 36, and a spiral groove 360 ​​is formed on the outer side of the connecting rod 36. A driven sliding rod 361 is slidably matched in the spiral groove 360. The driven sliding rod 361 is driven by the hydraulic end 32 to slide to drive the connecting rod 36 to rotate. The connecting rod 36 is connected with a driving gear 362 meshed with the driving gear plate 355. When in use, the driven sliding rod 361 is driven to slide synchronously by the telescopic sliding of the hydraulic end 32. The driven sliding rod 361 slides along the spiral groove 360 ​​to drive the connecting rod 36 to rotate. The connecting rod 36 rotates to drive the driving gear 362 to rotate. The driving gear 362 rotates to drive the meshing driving gear plate 355 to slide in the horizontal direction, thereby completing the effect of driving all the adjusting screws 353 to rotate synchronously.

[0060] Furthermore, in order to drive the tensioning wheel 351 to return to its original position after tension adjustment, an extension block 363 is provided at one end of the driving tooth plate 355, a limit block 364 is provided on the mounting frame 30, a return spring 365 is connected between the extension block 363 and the limit block 364, and the driving gear 362 is an incomplete gear setting. When in use, the hydraulic end 32 moves upward and contracts to drive the mounting frame 30 and the connected hot pressing roller 31 to move upward, and also synchronously drives the driven slide bar 361 to move upward. The driven slide bar 361 moves upward along the spiral slide groove 360 ​​on the connecting rotating rod 36 to drive the connected connecting rotating rod 36 and the driving gear 362 to rotate. After the toothed section of the driving gear 362 rotates and meshes with the driving tooth plate 355, it drives the driving tooth plate 355 to slide. The movement of the driving tooth plate 355 drives the return spring 365 to shift so that the return spring 365 is stretched by force. After the tension adjustment of the transmission belt 350 is completed, The telescopic section of the hydraulic end 32 stops sliding, at which time the toothed section of the driving gear 362 is out of meshing with the driving tooth plate 355, and under the reset drive of the stretched reset spring 365, the driving tooth plate 355 always has the driving force to slide and reset in the horizontal direction, so the driving tooth plate 355 slides and resets, and the sliding and resetting of the driving tooth plate 355 drives all the driven gears 354 to rotate in the opposite direction, thereby driving the adjusting screw 353 to rotate in the opposite direction, so as to drive the adjusting plate 352 and the tensioning wheel 351 to slide and reset, so that the tensioning wheel 351 re-tensions the connected transmission belt 350.

[0061] Example 2: Reference Figures 3 to 7As shown, on the basis of Example 1, in order to further improve the efficiency and effect of hot pressing forming of fiberboard, the upper and lower corresponding hot pressing rollers 31 located at the front end of the fiberboard conveying path are electric heating rollers, which can be driven to heat up quickly by electric heating, so that the fiberboard as a whole is quickly heated and heated, and then the remaining hot pressing rollers 31 and the driven shaft 33 are all hollow structures for storing heat-conducting liquid. The heat-conducting liquid is preferably a heating liquid with high specific heat capacity and good thermal conductivity, such as thermal oil, so as to improve the heat storage and transfer efficiency. The two ends of the hot pressing roller 31 are symmetrically connected with a conducting pipe 37, and the conducting pipe 37 is limitedly inserted in the driven shaft 33, and the conducting pipes 37 on the same side at both ends of the hot pressing roller 31 are respectively connected with a connecting pipe 370.

[0062] It should be noted that the heating temperature of the electrically heated roller should be higher than the heating temperature of the remaining hot pressing rollers 31 so as to achieve the effect of quickly preheating the passing fiberboard and shorten the time for the fiberboard to reach the predetermined processing temperature. At this time, in order to avoid the high temperature of the electrically heated hot pressing roller 31 causing the fiberboard to melt quickly, the thermal conductivity of the protective oil film on the outside of the electrically heated hot pressing roller 31 should be lower than the thermal conductivity of the protective oil film on the outside of the remaining hot pressing rollers 31.

[0063] During use, the heat transfer liquid heated to a certain temperature is pre-circulated into the connected hot pressing rollers 31 through the connecting pipe 370 and a plurality of conducting pipes 37 to complete the effect of heating the hot pressing rollers 31. When the fiberboard is placed on the conveyor belt 20 and transported to the heating chamber, the side of the fiberboard close to the mounting frame 30 will be in advance in contact with the hot pressing roller 31 with electric heating at the front end, so as to achieve the effect of driving the fiberboard to be treated to be heated quickly in advance. Then, after the fiberboard continues to be transported deeper into the heating chamber with the conveyor belt 20, the preheated fiberboard is further hot-pressed by the remaining hot pressing rollers 31 filled with the heated heat transfer liquid, so that during the hot pressing molding process, the fiberboard can be ensured to be heated quickly and evenly, thereby avoiding the problem of deformation of the board after molding.

[0064] As an optional embodiment, when the processing temperatures required on both sides of the fiberboard to be processed are different, the connecting pipes 370 connected to the upper and lower corresponding hot pressing rollers 31 can also be respectively input with heat transfer fluids of different temperatures to meet the different processing temperature requirements on both sides of the fiberboard. If the temperature requirements on both sides are the same, the connecting pipes 370 of the upper and lower pairs of hot pressing rollers 31 can be directly connected to each other through external connecting pipes.

[0065] The following steps are included when the microstructured fiberboard high-efficiency hot pressing forming device is used to hot press the fiberboard: S1. Place the fiberboard to be processed on the conveyor belt 20 for conveying.

[0066] S2. When the fiberboard is conveyed to the hot pressing roller 31 by the conveyor belt 20, the hot pressing roller 31 heats and raises the temperature to provide the necessary temperature conditions for hot pressing of the fiberboard.

[0067] S3. During the conveying process of the fiberboard, the relative position distance between the hot pressing roller 31 and the fiberboard is adjusted to adjust the pressure applied to the fiberboard for hot pressing, thereby completing the hot pressing process of the fiberboard.

[0068] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0069] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A microstructured fiberboard high-efficiency hot pressing molding process, the high-efficiency hot pressing molding process using the following microstructured fiberboard high-efficiency hot pressing molding device, including a frame (1), characterized in that: On the described frame (1), there is a conveyor (2) for conveying the fiberboard to be processed and a hot pressing member (3) for hot pressing the fiberboard corresponding to the conveyor (2), where: The described conveyor (2) includes: A conveyor belt (20), which is transmission-limited on the frame (1) and is used to convey the fiberboard to be processed; The described hot pressing member (3) includes: An installation frame (30), which is in a U-shape and is limited on the frame (1), and its two vertical sections are symmetrically distributed on both sides of the conveying path of the conveyor belt (20); Hot pressing rollers (31), several of which are provided, and are respectively limited and connected to the frame (1) and the installation frame (30). The hot pressing rollers (31) provided on the frame (1) and the installation frame (30) are separated up and down by the conveyor belt (20) and are arranged in one-to-one correspondence; A hydraulic end (32), which is limited on the frame (1) and is used to provide the driving force for driving the hot pressing roller (31) to lift and slide; When using this high-efficiency hot pressing forming device for microstructured fiberboards to perform hot pressing forming processing on fiberboards, the following steps are included: S1. Place the fiberboard to be processed on the conveyor belt (20) for conveying; S2. When the fiberboard is conveyed by the conveyor belt (20) to the hot pressing roller (31), it is heated and raised in temperature by the hot pressing roller (31) to provide the necessary temperature conditions required for the hot pressing forming of the fiberboard; S3. At the same time, during the conveying process of the fiberboard, adjust the relative position distance between the hot pressing roller (31) and the fiberboard to achieve the adjustment of the pressure applied to the hot pressing forming of the fiberboard, thereby completing the hot pressing forming processing of the fiberboard.

2. The high-efficiency hot-pressing forming process for microstructured fiberboard according to claim 1, characterized in that: The described conveyor belt (20) is provided with a number of through holes (200) at uniform intervals, and the number of through holes (200) is set corresponding to the position of the hot pressing roller (31).

3. The high-efficiency hot pressing process for forming microstructured fiberboard according to claim 1, characterized in that: The described conveyor (2) further includes driving rotating shafts (21) that are limited and inserted through the frame (1) and are provided corresponding to both ends of the conveyor belt (20). Driving rollers (22) that are sleeved on the driving rotating shafts (21) and are in fit connection with the conveyor belt (20) are used to complete the continuous conveying of the fiberboard through the transmission cooperation between the two driving rollers (22) and the conveyor belt (20).

4. The high-efficiency hot pressing process for forming microstructured fiberboard according to claim 1, characterized in that: Driven rotating shafts (33) that are symmetrically connected to the hot pressing roller (31) and are inserted through the frame (1) and the installation frame (30) are provided. Among them, all the driven rotating shafts (33) limited on the frame (1) and the two driving rotating shafts (21) are commonly connected by belt transmission.

5. The high-efficiency hot pressing process for forming microstructured fiberboard according to claim 1, characterized in that: The described installation frame (30) is a telescopic structure, and the hot pressing roller (31) limited on the installation frame (30) is limited and connected to the telescopic section of the installation frame (30). The telescopic section of the installation frame (30) is driven by the hydraulic end (32) to perform sliding adjustment.

6. The high-efficiency hot pressing process for forming microstructured fiberboard according to claim 1, characterized in that: Sealing plates (34) are limited and connected to both ends of the described installation frame (30). A heating cavity is jointly formed among the two sealing plates (34), the installation frame (30) and the conveyor belt (20) to heat the passing fiberboard.

7. The high-efficiency hot-pressing forming process for microstructured fiberboard according to claim 1, characterized in that: Synchronous belt wheels (35) are symmetrically sleeved on both ends of any two vertically corresponding hot pressing rollers (31), and a transmission belt (350) is commonly connected between the two synchronous belt wheels (35) corresponding to the same side.

8. The high-efficiency hot pressing process for forming microstructured fiberboard according to claim 7, characterized in that: The end of the transmission belt (350) away from the frame (1) passes through the mounting frame (30) and is provided with a tensioning wheel (351). The tensioning wheels (351) on the transmission belt (350) at both ends of the same hot pressing roller (31) are symmetrically arranged. An adjusting plate (352) is rotatably connected between the two corresponding tensioning wheels (351). The adjusting plate (352) is symmetrically provided with adjusting screws (353) which are limitedly connected to the mounting frame (30).

9. The high-efficiency hot pressing process for forming microstructured fiberboard according to claim 8, characterized in that: The adjusting screw rod (353) is sleeved with a driven gear (354), and all the driven gears (354) on the same side are meshed with a driving toothed plate (355).

10. The high-efficiency hot pressing process for forming microstructured fiberboard according to claim 9, characterized in that: The mounting frame (30) is also limitedly connected to a connecting rod (36), a spiral groove (360) is formed on the outer side of the connecting rod (36), a driven slide rod (361) is slidably engaged in the spiral groove (360), the driven slide rod (361) is driven by the hydraulic end (32) to slide so as to drive the connecting rod (36) to rotate, and the connecting rod (36) is connected to a driving gear (362) meshing with the driving gear plate (355).

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