A compression apparatus for a hinoki homogeneous board and a method of use

By using multi-plate collaborative operation and stepped intelligent cleaning technology, the problem of difficult removal of resin and paclitaxel in the production of cedar homogeneous boards has been solved, achieving non-destructive cleaning of the platen surface and improving product quality.

CN121223922BActive Publication Date: 2026-02-03FUREN WOOD (FUZHOU) CO LTD
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Patent Information

Application Number
CN202511774968.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-02-03
Estimated Expiration
2045-11-28

AI Technical Summary

Technical Problem

In the existing technology, during the production of cedar homogeneous boards, resin and cedrol seep out and solidify on the surface of the board under high temperature and pressure, which is difficult to completely remove, resulting in indentations and uneven heating, affecting product quality and appearance.

Method used

Employing multi-pressure plate collaborative operation and stepped intelligent cleaning technology, the system utilizes a full-process cleaning system of preheating softening, airbag extrusion, gas explosion crushing, and mechanical sweeping. It achieves segmented temperature control using a heating plate core and combines the linkage of airbags and gas explosion components to thoroughly separate and remove resin and cedrol.

Benefits of technology

This method achieves non-destructive cleaning of the pressure plate surface, improves product quality stability and appearance, ensures the adhesion and heating uniformity between the pressure plate and the cedar board, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of multi-pressing plate hot press, and discloses a compression equipment for cypress homogenate plate and a use method, which comprises a compression frame and a hydraulic cylinder fixed below the compression frame, further comprises two conical guide columns fixed on the two sides of the compression frame and arranged diagonally, two guide columns fixed on the two sides of the compression frame and arranged diagonally, and multiple guide plates, each of which is sleeved on the conical guide column at one end and is sleeved on the guide column at the other end, and the multiple guide plates are arranged in two rows at equal intervals, the present application solves the industry pain points that the cured resin and cypressinol on the surface of the multi-pressing plate hot press are difficult to remove and the equipment is easy to be damaged by constructing a multi-pressing plate collaborative operation and ladder type intelligent cleaning integrated technical scheme, and a preheating softening-air bag extrusion-air explosion crushing-mechanical cleaning whole-process cleaning system is implemented.
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Description

Technical Field

[0001] This invention relates to the field of multi-plate hot press technology, specifically to a pressing device and method for using homogeneous cedar boards. Background Technology

[0002] In the production and processing of homogeneous cedar plywood, the multi-plate hot press is the core equipment for pressurizing and molding cedar plywood. It uses multiple sets of pressure plates working together, combined with heating of the core plate, to cure the cedar plywood under high temperature and high pressure, significantly improving production efficiency and product uniformity. However, cedar plywood itself contains a certain amount of resin and cedrol. During the pressing process of the multi-plate hot press, under the influence of high temperature and high pressure, these resins and cedrol gradually seep out from the interior of the cedar plywood and adhere directly to the working surfaces of each pressure plate. Because the production process requires continuous high temperature and high pressure conditions, the resin and cedrol adhering to the pressure plate surface will quickly solidify and form a strong bond with the pressure plate surface. With long-term use, the solidified material will gradually accumulate and thicken.

[0003] In existing technologies, conventional manual cleaning methods are not only cumbersome, time-consuming, and labor-intensive, but also struggle to reach the surface gaps and critical areas of the matrix distribution on the pressing plate, resulting in incomplete cleaning. Chemical solvent cleaning may corrode the surface material of the pressing plate, affecting its flatness and subsequent pressing accuracy. Mechanical scraping methods easily scratch the working surface of the pressing plate, further exacerbating product defects. More critically, residual solidified material continues to adhere to the pressing plate surface. When the equipment performs pressing operations again, these raised solidified materials form additional indentations on the cedar board surface, severely damaging the appearance and surface flatness of the homogeneous cedar board, leading to a decrease in product qualification rate. Simultaneously, the accumulation of solidified material also affects the adhesion between the pressing plate and the cedar board, causing uneven heating and pressurization, further reducing product quality stability. These problems have long plagued the cedar homogeneous board production industry, becoming a core pain point restricting the application effect and product quality improvement of multi-plate hot presses. Summary of the Invention

[0004] This invention provides a pressing device and method for using homogeneous cedar boards, which effectively removes resin and cedrol that seeps out of the cedar boards.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] In a first aspect, a pressing device for homogeneous cedar boards includes: a pressing frame and a hydraulic cylinder fixed below the pressing frame, and further includes:

[0007] Two conical guide pillars are provided, fixed to both sides of the clamping frame and arranged diagonally; two guide pillars are provided, fixed to both sides of the clamping frame and arranged diagonally; multiple guide plates are provided, each guide plate having one end sleeved on the conical guide pillar and the other end slidably sleeved on the guide pillar, the multiple guide plates being arranged in two rows at equal intervals; multiple pressure plates are provided, each pressure plate having both ends fixed to the guide plates, and two pressure plates are provided on the guide plates in the same row; multiple airbag components are fixed on the pressure plates, and multiple airbag components are provided on the same pressure plate and arranged in a matrix; multiple air detonation components are fixed on the pressure plates, and multiple airbag components are provided on the same pressure plate and arranged in a matrix; a cleaning component is slidably disposed on the pressure plate;

[0008] The main air passage is located inside the pressure plate; the airbag groove is located on the top of the pressure plate; and the elastic airbag is fixed inside the airbag groove.

[0009] The system includes: a high-pressure chamber located within the pressure plate, with two chambers at the same main air passage; a switching hole located within the pressure plate and connected to both the main air passage and the high-pressure chamber; a distribution air passage located within the pressure plate and connected to the high-pressure chamber; an air explosion groove located on the pressure plate and connected to the distribution air passage; a limiting groove located below the air explosion groove; an air explosion head vertically sliding within the air explosion groove; a limiting protrusion ring fixed below the air explosion head and located within the limiting groove; an instantaneous channel located within the air explosion head; an instantaneous air groove located above the air explosion head and connected to the instantaneous channel; and an instantaneous airbag fixed above the air explosion head.

[0010] Furthermore, it also includes:

[0011] The heating plate core is fixed on the pressure plate; the air supply pipe is fixed at one end on the pressure plate and extends out of the guide plate at the other end; the electric switch valve is fixed at the end of the air supply pipe near the guide plate; the top partition is fixed above the clamping frame; the control console is fixed on the clamping frame; and the bearing column is fixed at both ends on the pressure plate.

[0012] Furthermore, the airbag component also includes:

[0013] A limiting ring is fixed at the bottom of the main air passage; an airbag piston is slidably disposed within the main air passage; a spring ring seat is fixed at the top of the main air passage; an airbag spring is fixed at one end to the airbag piston and at the other end to the spring ring seat; and an airbag hole is opened within the main air passage.

[0014] Furthermore, the airbag component also includes:

[0015] Mounting base, fixed inside the spring ring seat; mounting column, fixed on the mounting base and located inside the main air passage; permanent magnet, fixed on the end of the mounting column away from the spring ring seat; magnet sheet, fixed above the airbag piston.

[0016] Furthermore, the gas explosion component also includes:

[0017] The high-pressure piston is slidably disposed in the high-pressure chamber; the high-pressure spring is fixed at one end in the high-pressure chamber and at the other end on the high-pressure piston; the trigger pin is fixed in the high-pressure chamber; the trigger groove is formed on the end of the trigger pin near the high-pressure piston; the trigger slot is formed on the side of the high-pressure piston near the trigger pin; and the high-pressure ring is fixed in the high-pressure chamber.

[0018] Furthermore, the gas explosion component also includes:

[0019] A locking groove is formed inside the high-pressure piston and is connected to the trigger groove; the locking piston is slidably disposed in the locking groove; a nickel-titanium spring is fixed at one end in the locking groove and at the other end on the locking piston; a heating ring is fixed on the locking piston; and a locking rod is fixed at one end on the locking piston and at the other end slides out of the locking groove.

[0020] Furthermore, the gas explosion component also includes:

[0021] A venting channel is provided on the high-pressure piston; a switch channel is provided on the high-pressure piston; a switch rod is fixed at one end to the locking piston and extends into the switch channel at the other end; a switch plate is fixed on the end of the switch rod away from the locking piston and is located in the venting channel; a return spring is sleeved on the locking rod and is located inside the Nitinol spring; and a gas explosion spring is fixed at one end to the gas explosion groove and at the other end to the gas explosion head.

[0022] Furthermore, the cleaning component also includes:

[0023] The cleaning guide rod is fixed at both ends to the guide plate; the threaded rod is rotatably mounted on the guide plate at both ends; the cleaning sleeve is slidably sleeved on the cleaning guide rod on all four sides, and threadedly sleeved on the threaded rod at the middle position; the cleaning motor is fixed on the guide plate; the cleaning bevel gear has the input bevel gear fixed on the cleaning motor and the output bevel gear fixed on the threaded rod.

[0024] Furthermore, the cleaning component also includes:

[0025] The cleaning box is fixed to the cleaning sleeve block; the sliding plate is slidably set inside the cleaning box; the sliding rod is fixed at one end to the sliding plate and extends out of the cleaning box at the other end; the threaded torsion bar is rotatably set on the cleaning box; the adjusting gear is fixed on the end of the threaded torsion bar that extends out of the cleaning box; the adjusting plate is slidably set inside the cleaning box and its two ends are slidably sleeved on the sliding rod; the adjusting spring is fixed at one end to the sliding plate and at the other end to the adjusting plate; and the cleaning scraper is fixed on the end of the sliding rod that extends out of the cleaning box.

[0026] Secondly, a method for using a pressing device for homogeneous cedar boards, the steps of which are as follows:

[0027] S1. Place multiple cedar boards on top of the pressure plate in sequence, ensuring they are placed flat.

[0028] S2. Start the heating plate core and hydraulic cylinder through the control console. The hydraulic cylinder extends and drives the guide plate and the lower pressure plate to move upward. The guide plate moves along the guide column and drives the cedar board to stack up to the uppermost pressure plate and reach the top partition.

[0029] S3. The hydraulic cylinder continuously applies pressure, and the heated core transfers heat to the cedar board through the pressure plate to complete the heating and pressing, forming a homogeneous cedar board.

[0030] S4. After pressing, remove the cedar homogeneous board from the press plate, turn on the heating plate core through the control console, preheat the press plate to 30-40℃, then raise the temperature to 45-55℃ and keep it warm to make the cured material in a soft state.

[0031] S5. The control console controls the gas supply system to supply gas to the gas supply pipe. The gas pushes the airbag piston upward through the main gas channel, compressing the airbag spring. The gas passes through the airbag hole, causing the elastic airbag to inflate and rupture the soft, solidified material.

[0032] S6. After the elastic airbag inflates to the specified level, the airbag piston continues to move upward to block the airbag hole and is fixed by the permanent magnet; at the same time, the switching hole opens and gas enters the high-pressure chamber.

[0033] S7. The increased air pressure in the high-pressure chamber pushes the high-pressure piston to move, triggering the heating ring to heat the nickel-titanium spring, which in turn drives the locking mechanism to connect the venting channel with the distribution channel.

[0034] S8. High-pressure gas enters the gas explosion tank through the channel, lifting the instantaneous gas bag and the gas explosion head. Gas is injected from the instantaneous gas tank into the gap between the solidified material and the pressure plate, and the residual solidified material is separated by a micro-gas explosion.

[0035] S9. After cleaning, the control panel turns off the heating and controls the air supply system to reverse the air intake, so that the elastic airbag, air burst head and high pressure piston components are reset.

[0036] S10. Start the sweeping motor, which drives the sweeping scraper to slide along the pressure plate through the transmission mechanism. It lightly scrapes away the broken and solidified material and collects it. Finally, the staff collects the collected residue.

[0037] The above-described solution of the present invention has at least the following beneficial effects:

[0038] This invention completely solves the industry pain point of difficult removal and easy damage to equipment caused by the hard-to-remove resin and paclitaxel on the surface of multi-platen hot presses by constructing an integrated technology solution of multi-platen collaborative operation and stepped intelligent cleaning. It implements a full-process cleaning system of preheating softening, airbag extrusion, air explosion crushing, and mechanical cleaning. Relying on the heating plate core, it achieves segmented precise temperature control of 30-40℃ preheating and 45-55℃ heat preservation. First, it softens the bonding surface between the resin and paclitaxel and the platen. Then, the matrix-arranged elastic airbags on the platen synchronously expand and extrude, causing large pieces of resin and paclitaxel to break up, forming multiple... The process involves regional differentiation; then, through the high-pressure chamber of the gas explosion component, the instantaneous airbag, and the gas explosion head, an instantaneous high-pressure gas explosion is formed to separate the resin and paclitaxel within the separation area. The gas explosion head moves upward synchronously with the instantaneous airbag, exerting a pushing effect on the softened resin and paclitaxel on the pressure plate surface. Gas is then injected through the instantaneous air groove into the gap between the softened resin and paclitaxel and the pressure plate. As gas is continuously injected, the air pressure in the gap continuously increases and micro-gas explosions occur, completely separating and breaking down the resin and paclitaxel in the area not covered by the elastic airbag. The cleaning scraper of the cleaning component pushes and scrapes with a safe force to achieve damage-free removal.

[0039] This invention achieves a closed-loop cleaning process for the protective plate through unified scheduling of the air supply pipe and control console throughout the entire process; it realizes the linkage and self-locking control of the airbag and the gas explosion action. The main air channel and the high-pressure chamber switching hole are opened synchronously by the adsorption and positioning of the airbag piston and the permanent magnet and the magnetic sheet. The high-pressure piston is locked by the heating and shortening of the nickel-titanium spring, which drives the locking rod to lock into the trigger groove of the trigger column. At the same time, the linkage switch rod opens the gas release channel to ensure that the high-pressure gas accurately flows into the gas explosion chamber, realizing the seamless connection and precise control of the two actions. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of a pressing device for homogeneous cedar boards provided in an embodiment of the present invention;

[0041] Figure 2 A schematic diagram of the control console structure of a pressing device for homogeneous cedar boards provided in an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the pressing plate structure of a pressing device for homogeneous cedar boards provided in an embodiment of the present invention;

[0043] Figure 4 A pressing device for cedar homogeneous boards provided in an embodiment of the present invention. Figure 3 Enlarged view of point A;

[0044] Figure 5 This is a schematic diagram of the heating plate core structure of a pressing device for homogeneous cedar boards provided in an embodiment of the present invention;

[0045] Figure 6This is a schematic diagram of the elastic airbag structure of a pressing device for homogeneous cedar boards provided in an embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the air bladder groove structure of a pressing device for homogeneous cedar boards provided in an embodiment of the present invention;

[0047] Figure 8 A pressing device for cedar homogeneous boards provided in an embodiment of the present invention. Figure 7 Enlarged view of point B;

[0048] Figure 9 A pressing device for cedar homogeneous boards provided in an embodiment of the present invention. Figure 7 Enlarged view of point C;

[0049] Figure 10 A pressing device for cedar homogeneous boards provided in an embodiment of the present invention. Figure 7 Enlarged view of point D;

[0050] Figure 11 A pressing device for cedar homogeneous boards provided in an embodiment of the present invention. Figure 7 Enlarged view of point E.

[0051] Explanation of reference numerals in the attached figures:

[0052] In the diagram: 1. Clamping frame; 2. Hydraulic cylinder; 3. Conical guide post; 4. Guide post; 5. Guide plate; 6. Pressure plate; 7. Airbag component; 701. Main air passage; 702. Airbag groove; 703. Elastic airbag; 704. Limiting ring; 705. Airbag piston; 706. Spring ring seat; 707. Airbag spring; 708. Airbag hole; 709. Mounting base; 7010. Mounting post; 7011. Permanent magnet; 701 2. Magnetic sheet; 8. Gas explosion component; 801. High-pressure chamber; 802. Switching hole; 803. Gas distribution channel; 804. Gas explosion groove; 805. Limiting groove; 806. Gas explosion head; 807. Limiting protrusion ring; 808. Instantaneous release channel; 809. Instantaneous release gas groove; 8010. Instantaneous release airbag; 8011. High-pressure piston; 8012. High-pressure spring; 8013. Trigger post; 8014. Trigger groove; 8015. Trigger groove; 8016, High-pressure ring; 8017, Locking groove; 8018, Locking piston; 8019, Nickinol spring; 8020, Heating ring; 8021, Locking rod; 8022, Venting channel; 8023, Switch channel; 8024, Switch rod; 8025, Switch plate; 8026, Return spring; 8027, Gas explosion spring; 9, Cleaning component; 901, Cleaning guide rod; 902, Threaded rod; 903. Sweeping block; 904. Sweeping motor; 905. Sweeping bevel gear; 906. Sweeping box; 907. Slide plate; 908. Slide bar; 909. Threaded torsion bar; 9010. Adjusting gear; 9011. Adjusting plate; 9012. Adjusting spring; 9013. Sweeping scraper; 10. Heating plate core; 11. Air supply pipe; 12. Electric switch valve; 13. Top partition; 14. Control console; 15. Support column. Detailed Implementation

[0053] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0054] like Figures 1 to 11 As shown, an embodiment of the present invention provides a pressing device for homogeneous cedar boards, comprising: a pressing frame 1 and a hydraulic cylinder 2 fixed below the pressing frame 1, and further comprising:

[0055] Two conical guide pillars 3 are provided, fixed on both sides of the clamping frame 1 and arranged diagonally; two guide pillars 4 are provided, fixed on both sides of the clamping frame 1 and arranged diagonally; multiple guide plates 5 are provided, each guide plate 5 having one end sleeved on the conical guide pillar 3 and the other end slidably sleeved on the guide pillar 4, with multiple guide plates 5 arranged in two rows at equal intervals; multiple pressure plates 6 are provided, each pressure plate 6 having both ends fixed on the guide plates 5, with two pressure plates 6 provided on the guide plates 5 in the same row; airbag components 7 are fixed on the pressure plates 6 and located on the same... Multiple gas explosion components 8 are arranged in a matrix on the pressure plate 6; multiple gas explosion components 8 are fixed on the pressure plate 6 and arranged in a matrix on the same pressure plate 6; cleaning components 9 are slidably arranged on the pressure plate 6; the system also includes: a heating plate core 10, fixed on the pressure plate 6; a gas supply pipe 11, one end fixed on the pressure plate 6 and the other end extending onto the guide plate 5; an electric switch valve 12, fixed on the end of the gas supply pipe 11 near the guide plate 5; a top partition 13, fixed above the clamping frame 1; a control console 14, fixed on the clamping frame 1; and a bearing column 15, both ends of which are fixed on the pressure plate 6.

[0056] The main air passage 701 is located within the pressure plate 6; the airbag groove 702 is located at the top of the pressure plate 6; the elastic airbag 703 is fixed within the airbag groove 702; the high-pressure chamber 801 is located within the pressure plate 6, and two chambers are located at the same location as the main air passage 701; the switching hole 802 is located within the pressure plate 6 and is connected to both the main air passage 701 and the high-pressure chamber 801; the air distribution passage 803 is located within the pressure plate 6 and is connected to the high-pressure chamber 801; and the air explosion groove 804 is located within the pressure plate 6. The upper part is connected to the gas distribution channel 803; the limiting groove 805 is opened below the gas explosion groove 804; the gas explosion head 806 is vertically slidably set in the gas explosion groove 804; the limiting protrusion ring 807 is fixed below the gas explosion head 806 and located in the limiting groove 805; the instantaneous channel 808 is opened in the gas explosion head 806; the instantaneous gas groove 809 is opened above the gas explosion head 806 and is connected to the instantaneous channel 808; the instantaneous airbag 8010 is fixed above the gas explosion head 806.

[0057] Specifically, the core of this equipment adopts a multi-plate configuration design. Multiple pressure plates 6 work together to heat and compact the cedar boards, ultimately transforming them into homogeneous cedar boards. The basic pressing unit of the equipment is supported by two parallel guide plates 5, and equipped with two vertically parallel pressure plates 6. A heating core 10 is fixed in the middle area of ​​these two pressure plates 6, which can simultaneously and evenly heat the two pressure plates 6, ensuring temperature stability during the pressing process. To ensure the stability of the pressing plate structure, multiple support columns 15 are fixed between the two pressure plates 6. Through the connection of the support columns 15, the two pressure plates 6 and the support columns 15 form a rigid whole. The structure consisting of two guide plates 5, two pressure plates 6, and a set of heating cores 10 constitutes an independent cedar board pressing unit. By setting up multiple such pressing units, the equipment can simultaneously accommodate multiple cedar boards for synchronous pressing, significantly improving the production efficiency of homogeneous cedar boards.

[0058] In another preferred embodiment of the present invention, the airbag component 7 further includes: a limiting ring 704, fixed to the bottom of the main air channel 701; an airbag piston 705, slidably disposed in the main air channel 701; a spring ring seat 706, fixed to the top of the main air channel 701; an airbag spring 707, one end fixed to the airbag piston 705 and the other end fixed to the spring ring seat 706; and an airbag hole 708, formed in the main air channel 701.

[0059] The airbag component 7 also includes: a mounting base 709, fixed inside the spring ring seat 706; a mounting post 7010, fixed on the mounting base 709 and located inside the main air passage 701; a permanent magnet 7011, fixed on the end of the mounting post 7010 away from the spring ring seat 706; and a magnet sheet 7012, fixed above the airbag piston 705.

[0060] Specifically, the permanent magnet 7011 is made of samarium cobalt permanent magnet; the magnet sheet 7012 is made of samarium cobalt alloy sheet.

[0061] In another preferred embodiment of the present invention, the gas explosion component 8 further includes: a high-pressure piston 8011, slidably disposed within the high-pressure chamber 801; a high-pressure spring 8012, one end fixed within the high-pressure chamber 801 and the other end fixed to the high-pressure piston 8011; a trigger post 8013, fixed within the high-pressure chamber 801; a trigger groove 8014, formed on one end of the trigger post 8013 near the high-pressure piston 8011; a trigger slot 8015, formed on one side of the high-pressure piston 8011 near the trigger post 8013; and a high-pressure ring 8016, fixed within the high-pressure chamber 801.

[0062] The gas explosion component 8 also includes: a locking groove 8017, which is formed in the high-pressure piston 8011 and is connected to the trigger groove 8015; a locking piston 8018, which is slidably disposed in the locking groove 8017; a nickel-titanium spring 8019, one end of which is fixed in the locking groove 8017 and the other end of which is fixed on the locking piston 8018; a heating ring 8020, which is fixed on the locking piston 8018; and a locking rod 8021, one end of which is fixed on the locking piston 8018 and the other end of which slides out of the locking groove 8017.

[0063] The gas explosion component 8 also includes: a venting channel 8022, which is opened on the high-pressure piston 8011; a switching channel 8023, which is opened on the high-pressure piston 8011; a switching rod 8024, one end of which is fixed on the locking piston 8018 and the other end extends into the switching channel 8023; a switching plate 8025, which is fixed on the end of the switching rod 8024 away from the locking piston 8018 and located in the venting channel 8022; a reset spring 8026, which is sleeved on the locking rod 8021 and located in the Nitinol spring 8019; and a gas explosion spring 8027, one end of which is fixed on the gas explosion groove 804 and the other end of which is fixed on the gas explosion head 806.

[0064] In another preferred embodiment of the present invention, the cleaning component 9 further includes: a cleaning guide rod 901, both ends of which are fixed on the guide plate 5; a threaded rod 902, both ends of which are rotatably mounted on the guide plate 5; a cleaning sleeve block 903, which is slidably sleeved on the cleaning guide rod 901 on all four sides and threadedly sleeved on the threaded rod 902 at the middle position; a cleaning motor 904, which is fixed on the guide plate 5; and a cleaning bevel gear 905, with the input bevel gear fixed on the cleaning motor 904 and the output bevel gear fixed on the threaded rod 902.

[0065] The cleaning component 9 also includes: a cleaning box 906, fixed on the cleaning sleeve block 903; a sliding plate 907, slidably disposed within the cleaning box 906; a sliding rod 908, one end fixed on the sliding plate 907 and the other end extending out of the cleaning box 906; a threaded torsion bar 909, rotatably disposed on the cleaning box 906; an adjusting gear 9010, fixed on one end of the threaded torsion bar 909 extending out of the cleaning box 906; an adjusting plate 9011, slidably disposed within the cleaning box 906, with both ends slidably sleeved on the sliding rod 908; an adjusting spring 9012, one end fixed on the sliding plate 907 and the other end fixed on the adjusting plate 9011; and a cleaning scraper 9013, fixed on one end of the sliding rod 908 extending out of the cleaning box 906.

[0066] Specifically, the cleaning scraper 9013 can collect the broken resin and cedrol; the cleaning motor 904 and the threaded rod 902 drive the cleaning sleeve block 903, the cleaning box 906, the slide bar 908 and the cleaning scraper 9013 to move.

[0067] When installing the pressing equipment for cedar homogeneous boards—the multi-plate hot press—it is necessary to first dig a space underground to accommodate the hydraulic cylinder 2, and then firmly fix the pressing frame 1 on the ground to complete the basic installation of the equipment. During long-term use, resin and cedrol will gradually adhere to and solidify in some areas of the pressing plate 6. These solidified substances will cause additional indentations on the cedar board when the pressing plate 6 is working, directly affecting the final appearance of the cedar homogeneous board.

[0068] The working principle is as follows: multiple cedar boards are placed sequentially on top of the pressure plate 6. A command is sent via the control console 14 to control the heating core 10 and hydraulic cylinder 2 to start working. The hydraulic cylinder 2 extends outward, causing the pressure plate 6 below the bottom guide plate 5 of the pressing frame 1 to move upward. As the pressure plate 6 moves upward, it causes the corresponding guide plate 5 to move upward along the guide post 4, and the guide plate 5 carries the cedar board it supports to move upward synchronously. With the linkage of various components, all the pressure plates 6 and cedar boards are gradually stacked together from bottom to top until the top pressure plate 6 moves to the top partition 13. At this time, the hydraulic cylinder 2 remains extended, applying a stable force to the cedar board through the pressure plate 6. Simultaneously, the heating core 10 begins to heat the pressure plate 6, and the heat is transferred to the cedar board through the pressure plate 6. After a period of continuous pressurization and heating, the cedar board is finally formed into a homogeneous cedar board. When the hydraulic cylinder 2 retracts, the guide plate 5, which is thinner at the top and thicker at the bottom, returns to its original position and height through the tapered guide post 3.

[0069] During long-term use of the equipment, when the pressure plate 6 applies pressure and heats the cedar board, the resin and cedrol inside the cedar board will gradually seep out and remain on the surface of the pressure plate 6. Under long-term high temperature and high pressure environment, the resin and cedrol will gradually solidify on the surface of the pressure plate 6, which is difficult to remove completely by conventional methods. When the pressure plate 6 with solidified resin and cedrol is used again, the resin and cedrol will form additional indentations on the surface of the cedar board, which will seriously affect the appearance of the homogeneous cedar board.

[0070] For cleaning the cured resin and cedar alcohol on the surface of the pressure plate 6, the heating core 10 is turned on through the control console 14 to preheat the pressure plate 6, stabilizing its surface temperature between 30-40℃. This preheating process effectively softens the bonding surface between the cured resin and cedar alcohol and the surface of the pressure plate 6, laying the foundation for subsequent cleaning. After preheating, the temperature is raised to a softening range of 45-55℃ and kept stable, so that the resin and cedar alcohol are in a soft state, thereby reducing their interfacial adhesion to the surface of the pressure plate 6. In the soft state, tiny gaps will naturally form between the resin and cedar alcohol and the pressure plate 6, and their flexibility will be improved. The subsequently injected gas can fully penetrate through these tiny cracks, eventually covering all residual areas.

[0071] After the temperature control reaches the target, the air supply system is activated via the control panel 14, continuously supplying air to the air supply pipe 11. Compressed gas in the air supply pipe 11 enters the main air channel 701 inside the pressure plate 6, pushing the airbag piston 705 within the main air channel 701 upwards. During this movement, the airbag piston 705 compresses the upper airbag spring 707. When the airbag piston 705 rises to the set height, the gas below the airbag piston 705 flows through the airbag hole 708 in the main air channel 701 to the area above the airbag piston 705, and then injects into the elastic airbag 703 in the airbag groove 702, causing the elastic airbag 703 to inflate rapidly. The inflated elastic airbag 703 compresses the softened resin and cedrol on the surface of the pressure plate 6, causing... The soft resin and cedar alcohol rupture; after the elastic airbag 703 inflates to a certain extent, the airbag piston 705 continues to move upward until it completely blocks the upper airbag hole 708, cutting off the gas connection between the main air passage 701 and the elastic airbag 703; then the airbag piston 705 continues to move upward to the mounting post 7010, and the permanent magnet 7011 at the end of the mounting post 7010 firmly attracts the magnetic sheet 7012 above the airbag piston 705, thus fixing the airbag piston 705; at the same time as the airbag piston 705 moves upward, the switching hole 802 between the main air passage 701 and the high-pressure chamber 801 opens simultaneously, and the compressed gas in the main air passage 701 enters the high-pressure chamber 801 through the switching hole 802.

[0072] The gas entering the high-pressure chamber 801 causes the internal pressure to rise continuously. The high-pressure gas pushes the high-pressure piston 8011 within the high-pressure chamber 801 to move. During this movement, the high-pressure piston 8011 compresses the high-pressure spring 8012 until it reaches the trigger pin 8013, precisely aligning the trigger pin 8013 with the trigger groove 8015 on the high-pressure piston 8011. As the high-pressure piston 8011 moves toward the trigger pin 8013, it activates the heating ring 8020 on the locking piston 8018. The heat generated by the heating ring 8020 is transferred to the nitinol spring 8019 via heat transfer. The nitinol spring 8019 is then... After heating, the spring 8019 shortens; the shortened NiTiNo spring 8019 pulls the locking piston 8018 in the locking groove 8017 to move. When the locking piston 8018 moves, it compresses the internal return spring 8026 and drives the locking rod 8021 to extend from the locking groove 8017 into the trigger groove 8015. When the locking rod 8021 contacts the trigger post 8013, the trigger post 8013 pushes the locking rod 8021 into the locking groove 8017. The heating ring 8020 continues to maintain the heating state until the locking rod 8021 is completely inserted into the trigger groove 8014 on the trigger post 8013, thereby locking and fixing the high-pressure piston 8011.

[0073] As the locking piston 8018 moves, it simultaneously drives the switch rod 8024 to move. The switch rod 8024 moves into the switch channel 8023, and the switch plate 8025 at its end disengages from the vent channel 8022, allowing the vent channel 8022 to fully open and precisely align with the gas distribution channel 803. At this moment, the high-pressure gas in the high-pressure chamber 801 instantly rushes into the gas explosion groove 804 through the vent channel 8022 and the gas distribution channel 803. The powerful instantaneous air pressure pushes the instantaneous airbag 8010 in the gas explosion groove 804 upward. The gas explosion head 806 moves upward synchronously with the instantaneous airbag 8010, exerting a pushing effect on the softened resin and cedrol on the surface of the pressure plate 6. When 806 moves upward, it causes the lower limiting protrusion 807 to slide within the limiting groove 805. The maximum rising height of the air explosion head 806 is limited by the cooperation between the limiting protrusion 807 and the limiting groove 805. At the same time, the air explosion head 806 stretches the air explosion spring 8027 during its movement. The high-pressure gas entering the air explosion groove 804 flows through the instantaneous channel 808 in the air explosion head 806 to the instantaneous gas groove 809, and is sprayed from the instantaneous gas groove 809 into the gap between the softened resin and cedar alcohol that is being lifted and the pressure plate 6. As the gas is continuously injected, the air pressure in the gap continues to rise and a small air explosion occurs, completely separating and breaking the resin and cedar alcohol in the area not covered by the elastic airbag 703.

[0074] After the resin and cedar alcohol are crushed, the heating plate core 10 and heating ring 8020 are stopped by the control console 14, thus stopping all heating operations. At the same time, the control console 14 instructs the air supply system to reverse the air intake, reducing the air pressure in the air explosion groove 804. The tension of the air explosion spring 8027 drives the air explosion head 806 back into the air explosion groove 804, and the instantaneous airbag 8010 retracts and resets. The reverse air intake of the air supply system creates a negative pressure in the main air channel 701. Under the combined action of the elastic force of the airbag spring 707 and the negative pressure, the airbag piston 705 is disengaged from the permanent magnet 7011 and resets downwards. During the reset process of the airbag piston 705, the gas in the elastic airbag 703 is drawn out through the air supply system, the elastic airbag 703 contracts and re-enters the airbag groove 702; after the heating stops, the nickel-titanium spring 8019 cools down naturally and returns to its original state, the reset spring 8026 pushes the locking piston 8018 and the locking rod 8021 to reset, and the locking rod 8021 disengages from the trigger groove 8014 of the trigger post 8013; the elastic force of the high-pressure spring 8012 pushes the high-pressure piston 8011 to move back until the high-pressure piston 8011 abuts against the high-pressure ring 8016 to complete the reset.

[0075] Finally, the cleaning component 9 is activated to clean up the residue. The cleaning motor 904 is turned on, and the output shaft of the cleaning motor 904 drives the cleaning bevel gear 905 to rotate. The cleaning bevel gear 905 drives the threaded rod 902 to rotate through gear meshing. When the threaded rod 902 rotates, it pushes the cleaning sleeve block 903 to slide smoothly along the cleaning guide rod 901 through the threaded transmission. During the movement of the cleaning sleeve block 903, it drives the cleaning box 906 fixed on it to move synchronously. The cleaning box 906 drives the cleaning scraper 9013 to move on the surface of the pressure plate 6 through the slide rod 908. In order to avoid damaging the surface of the pressure plate 6, the contact force between the cleaning scraper 9013 and the pressure plate 6 is controlled within a safe range. By reciprocating pushing and scraping, the broken resin and cedrol on the pressure plate 6 are completely scraped off and concentrated on one side of the pressure plate 6. Finally, the staff collects and disposes of the concentrated residue.

[0076] In another preferred embodiment of the present invention, a method for using a pressing device for homogeneous cedar boards includes the following steps:

[0077] S1. Place multiple cedar boards on top of the pressure plate 6 in sequence, ensuring they are placed flat.

[0078] S2. Start the heating plate core 10 and hydraulic cylinder 2 through the control console 14. The hydraulic cylinder 2 extends and drives the guide plate 5 and the lower pressure plate 6 to move upward. The guide plate 5 moves along the guide column 4, driving the cedar board to stack up to the uppermost pressure plate 6 and reach the top partition 13.

[0079] S3, the hydraulic cylinder 2 continuously applies pressure, and the heating core 10 transfers heat to the cedar board through the pressure plate 6 to complete the heating and pressing, forming a homogeneous cedar board;

[0080] S4. After pressing, remove the cedar homogeneous board on the pressing plate 6, turn on the heating core 10 through the control console 14, preheat the pressing plate 6 to 30-40℃, and then raise the temperature to 45-55℃ and keep it warm so that the cured material is in a soft state.

[0081] S5, the control console 14 controls the air supply system to supply air to the air supply pipe 11. The gas pushes the airbag piston 705 upward through the main air passage 701, compressing the airbag spring 707. The gas passes through the airbag hole 708 to make the elastic airbag 703 inflate and rupture the soft and solidified material.

[0082] S6. After the elastic airbag 703 is inflated to the specified degree, the airbag piston 705 continues to move upward to block the airbag hole 708 and is fixed by the permanent magnet 7011; at the same time, the switching hole 802 is opened and gas enters the high-pressure chamber 801.

[0083] S7. The increased air pressure in the high-pressure chamber 801 pushes the high-pressure piston 8011 to move, triggering the heating ring 8020 to heat the nickel-titanium spring 8019, which in turn drives the locking mechanism to engage the venting channel 8022 with the gas distribution channel 803.

[0084] S8. High-pressure gas enters the gas explosion tank 804 through the channel, lifting the instantaneous airbag 8010 and the gas explosion head 806. Gas is injected from the instantaneous air tank 809 into the gap between the solidified material and the pressure plate, and the residual solidified material is separated by a micro-gas explosion.

[0085] S9. After cleaning, the control panel 14 turns off the heating and controls the air supply system to reverse the air intake, so that the elastic airbag 703, the air burst head 806 and the high pressure piston 8011 are reset.

[0086] S10. Start the sweeping motor 904, which drives the sweeping scraper 9013 to slide along the pressure plate 6 through the transmission mechanism. Scrape off the broken and solidified material with light force and collect it. Finally, the staff will collect the collected residue.

[0087] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pressing device for homogeneous cedar boards, comprising: The clamping frame and the hydraulic cylinder fixed below the clamping frame are characterized in that they further include: Two conical guide pillars are provided, fixed to both sides of the clamping frame and arranged diagonally; two guide pillars are provided, fixed to both sides of the clamping frame and arranged diagonally; multiple guide plates are provided, each guide plate having one end sleeved on the conical guide pillar and the other end slidably sleeved on the guide pillar, the multiple guide plates being arranged in two rows at equal intervals; multiple pressure plates are provided, each pressure plate having both ends fixed to the guide plates, and two pressure plates are provided on the guide plates in the same row; multiple airbag components are fixed on the pressure plates, and multiple airbag components are provided on the same pressure plate and arranged in a matrix; multiple air detonation components are fixed on the pressure plates, and multiple airbag components are provided on the same pressure plate and arranged in a matrix; a cleaning component is slidably disposed on the pressure plate; The main air passage is located inside the pressure plate; the airbag groove is located on the top of the pressure plate; and the elastic airbag is fixed inside the airbag groove. The system includes: a high-pressure chamber located within the pressure plate, with two chambers at the same main air passage; a switching hole located within the pressure plate and connected to both the main air passage and the high-pressure chamber; a distribution air passage located within the pressure plate and connected to the high-pressure chamber; an air explosion groove located on the pressure plate and connected to the distribution air passage; a limiting groove located below the air explosion groove; an air explosion head vertically sliding within the air explosion groove; a limiting protrusion ring fixed below the air explosion head and located within the limiting groove; an instantaneous channel located within the air explosion head; an instantaneous air groove located above the air explosion head and connected to the instantaneous channel; and an instantaneous airbag fixed above the air explosion head.

2. The pressing equipment for homogeneous cedar boards according to claim 1, characterized in that, Also includes: The heating plate core is fixed on the pressure plate; the air supply pipe is fixed at one end on the pressure plate and extends out of the guide plate at the other end; the electric switch valve is fixed at the end of the air supply pipe near the guide plate; the top partition is fixed above the clamping frame; the control console is fixed on the clamping frame; and the bearing column is fixed at both ends on the pressure plate.

3. The pressing equipment for homogeneous cedar boards according to claim 1, characterized in that, The airbag component also includes: A limiting ring is fixed at the bottom of the main air passage; an airbag piston is slidably disposed within the main air passage; a spring ring seat is fixed at the top of the main air passage; an airbag spring is fixed at one end to the airbag piston and at the other end to the spring ring seat; and an airbag hole is opened within the main air passage.

4. The pressing equipment for homogeneous cedar boards according to claim 3, characterized in that, The airbag component also includes: Mounting base, fixed inside the spring ring seat; mounting column, fixed on the mounting base and located inside the main air passage; permanent magnet, fixed on the end of the mounting column away from the spring ring seat; magnet sheet, fixed above the airbag piston.

5. The pressing equipment for homogeneous cedar boards according to claim 1, characterized in that, The gas explosion component also includes: The high-pressure piston is slidably disposed in the high-pressure chamber; the high-pressure spring is fixed at one end in the high-pressure chamber and at the other end on the high-pressure piston; the trigger pin is fixed in the high-pressure chamber; the trigger groove is formed on the end of the trigger pin near the high-pressure piston; the trigger slot is formed on the side of the high-pressure piston near the trigger pin; and the high-pressure ring is fixed in the high-pressure chamber.

6. The pressing device for homogeneous cedar boards according to claim 5, characterized in that, The gas explosion component also includes: A locking groove is formed inside the high-pressure piston and is connected to the trigger groove; the locking piston is slidably disposed in the locking groove; a nickel-titanium spring is fixed at one end in the locking groove and at the other end on the locking piston; a heating ring is fixed on the locking piston; and a locking rod is fixed at one end on the locking piston and at the other end slides out of the locking groove.

7. The pressing device for homogeneous cedar boards according to claim 6, characterized in that, The gas explosion component also includes: A venting channel is provided on the high-pressure piston; a switch channel is provided on the high-pressure piston; a switch rod is fixed at one end to the locking piston and extends into the switch channel at the other end; a switch plate is fixed on the end of the switch rod away from the locking piston and is located in the venting channel; a return spring is sleeved on the locking rod and is located inside the Nitinol spring; and a gas explosion spring is fixed at one end to the gas explosion groove and at the other end to the gas explosion head.

8. The pressing equipment for homogeneous cedar boards according to claim 1, characterized in that, The cleaning component also includes: The cleaning guide rod is fixed at both ends to the guide plate; the threaded rod is rotatably mounted on the guide plate at both ends; the cleaning sleeve is slidably sleeved on the cleaning guide rod on all four sides, and threadedly sleeved on the threaded rod at the middle position; the cleaning motor is fixed on the guide plate; the cleaning bevel gear has the input bevel gear fixed on the cleaning motor and the output bevel gear fixed on the threaded rod.

9. The pressing device for homogeneous cedar boards according to claim 8, characterized in that, The cleaning component also includes: The cleaning box is fixed to the cleaning sleeve block; the sliding plate is slidably set inside the cleaning box; the sliding rod is fixed at one end to the sliding plate and extends out of the cleaning box at the other end; the threaded torsion bar is rotatably set on the cleaning box; the adjusting gear is fixed on the end of the threaded torsion bar that extends out of the cleaning box; the adjusting plate is slidably set inside the cleaning box and its two ends are slidably sleeved on the sliding rod; the adjusting spring is fixed at one end to the sliding plate and at the other end to the adjusting plate; and the cleaning scraper is fixed on the end of the sliding rod that extends out of the cleaning box.

10. A method of using a pressing device for homogeneous cedar boards, applicable to the pressing device for homogeneous cedar boards as described in any one of claims 1-9, characterized in that, The usage steps are as follows: S1. Place multiple cedar boards on top of the pressure plate in sequence, ensuring they are placed flat. S2. Start the heating plate core and hydraulic cylinder through the control console. The hydraulic cylinder extends and drives the guide plate and the lower pressure plate to move upward. The guide plate moves along the guide column and drives the cedar board to stack up to the uppermost pressure plate and reach the top partition. S3. The hydraulic cylinder continuously applies pressure, and the heated core transfers heat to the cedar board through the pressure plate to complete the heating and pressing, forming a homogeneous cedar board. S4. After pressing, remove the cedar homogeneous board from the press plate, turn on the heating plate core through the control console, preheat the press plate to 30-40℃, then raise the temperature to 45-55℃ and keep it warm to make the cured material in a soft state. S5. The control console controls the gas supply system to supply gas to the gas supply pipe. The gas pushes the airbag piston upward through the main gas channel, compressing the airbag spring. The gas passes through the airbag hole, causing the elastic airbag to inflate and rupture the soft, solidified material. S6. After the elastic airbag inflates to the specified level, the airbag piston continues to move upward to block the airbag hole and is fixed by the permanent magnet; at the same time, the switching hole opens and gas enters the high-pressure chamber. S7. The increased air pressure in the high-pressure chamber pushes the high-pressure piston to move, triggering the heating ring to heat the nickel-titanium spring, which in turn drives the locking mechanism to connect the venting channel with the distribution channel. S8. High-pressure gas enters the gas explosion tank through the channel, lifting the instantaneous gas bag and the gas explosion head. Gas is injected from the instantaneous gas tank into the gap between the solidified material and the pressure plate, and the residual solidified material is separated by a micro-gas explosion. S9. After cleaning, the control panel turns off the heating and controls the air supply system to reverse the air intake, so that the elastic airbag, air burst head and high pressure piston components are reset. S10. Start the sweeping motor, which drives the sweeping scraper to slide along the pressure plate through the transmission mechanism. It lightly scrapes away the broken and solidified material and collects it. Finally, the staff collects the collected residue.

Citation Information

Patent Citations

  • Hot pressing equipment for wood plywood processing

    CN116572328A

  • Multi-layer hot press convenient for cleaning residual glue

    CN214447100U