Hot pressing equipment for plywood production

Abstract

The hot-pressing equipment for plywood production comprises a hot-pressing mechanism and a limiting mechanism, and the limiting mechanism is arranged on the side face of the hot-pressing mechanism; the hot pressing mechanism comprises a plurality of microwave heating plates and a plurality of middle partition plates arranged at intervals with the microwave heating plates, the microwave heating plates and the middle partition plates are connected with a limiting mechanism, and the limiting mechanism is used for limiting gaps between the adjacent microwave heating plates and middle partition plates; the microwave heating plate comprises a microwave generator used for heating the plate, the middle partition plate is provided with a cavity and through holes, and the through holes are formed in the two side faces of the cavity. Steam generated in the plate hot pressing process is discharged through the cavity and the through holes. And through the synergistic effect between the microwave heating plate and the middle partition plate, it is ensured that the pressure applied to the plate is evenly distributed, and the production efficiency of plate hot pressing and the quality of a final product are further improved.

Description

Technical Field

[0001] The present invention relates to the field of plywood production, and specifically to a hot pressing device for plywood production. Background Art

[0002] Plywood is a multi-layer board made by rotary cutting or planing logs into veneers (thin wood slices), rolling them up with adhesives in a way that the fiber directions of adjacent layers are perpendicular, and pressing them under high temperature and high pressure. Usually, it has an odd number of layers (such as three-ply board, five-ply board) to improve structural stability. Its structure includes surface boards (the front is the face panel, and the back is the back panel) and core boards (the middle layer). The main processes of plywood production include: rotary cutting / planing, drying, assembling embryos, and hot pressing.

[0003] The hot pressing process of plywood refers to placing the plywood blank coated with adhesive in a hot press, and under specific temperature, pressure, and time conditions, making each layer of wood tightly bond together through physical and chemical actions to form a board with high strength and water resistance. When traditional hot presses hot press boards, due to excessive local temperature or uneven pressure distribution, it often leads to over-curing of the adhesive or local failure, thus causing problems such as bubbling and delamination. At the same time, due to the relatively fast heat dissipation at the edges of the press plates, there is often a temperature gradient, resulting in uneven edge density and prone to problems such as paint surface cracking or deformation. Summary of the Invention

[0004] In order to overcome some of the problems mentioned in the above background, the present invention provides a hot pressing device for plywood production.

[0005] The technical solution adopted by the present invention is as follows: A hot pressing device for plywood production includes a hot pressing mechanism and a limiting mechanism, and the limiting mechanism is arranged on the side of the hot pressing mechanism; The hot pressing mechanism includes a plurality of microwave heating plates and a plurality of middle partition plates arranged at intervals therewith. The microwave heating plates and the middle partition plates are respectively connected to the limiting mechanism, and the limiting mechanism is used to define the gap between adjacent microwave heating plates and middle partition plates; The microwave heating plate includes a microwave generator for heating the board. The middle partition plate is provided with a cavity and through holes, and the through holes are arranged on both side surfaces of the cavity.

[0006] Further, the microwave heating plate further includes a first connection module and a heat insulation frame. The microwave generator is placed in the heat insulation frame, and the first connection module is fixedly connected to the heat insulation frame; There are two first connection modules, and the two first connection modules are arranged diagonally. The first connection module includes a first slider and a first connection column. The first connection column is arranged between the heat insulation frame and the first slider, and the first slider is slidably connected to the limiting mechanism; Two sets of first connection blocks are provided on both sides of the heat insulation frame, and the two sets of first connection blocks are symmetrically arranged along the center line of the heat insulation frame.

[0007] Furthermore, the middle partition board further includes a support shell plate, a plurality of vertical plates, and two second connection modules. The cavity is arranged inside the support shell plate, the through holes penetrate through the support shell plate, there are a plurality of through holes, and the plurality of through holes are arranged in an array along the surface of the support shell plate. The vertical plates are arranged between two adjacent rows of the through holes. The second connection module is fixedly connected to the side of the support shell plate. The two second connection modules are arranged diagonally, and the second connection module is connected to the limiting mechanism. The second connection module includes a second slider and a second connection column. The second connection column is arranged between the support shell plate and the second slider, and the second slider is slidably connected to the limiting mechanism. Air passing ports and two sets of second connection blocks are further provided on both sides of the support shell. The first connection block and the second connection block are arranged correspondingly. The air passing ports are communicated with the cavity. The two sets of second connection blocks are symmetrically arranged along the center line of the support shell plate, and the second connection blocks are arranged on both sides of the air passing holes.

[0008] Furthermore, the middle partition board is made of insulating material.

[0009] Furthermore, there are a plurality of limiting mechanisms, and the plurality of limiting mechanisms are respectively arranged in one-to-one correspondence with the first connection module and the second connection module. The limiting mechanism includes a shell, a slide rail, and a connecting rod module. The slide rail and the connecting rod module are arranged inside the shell. The connecting rod module is connected to the first connection column (or the second connection column), and the slide rail is slidably connected to the first slider (or the second slider).

[0010] Furthermore, it further includes a shielding cover, a hydraulic driving rod, and a support mechanism. The support mechanism is connected to the hot pressing mechanism. The fixed end of the hydraulic driving rod is connected to the support mechanism, and the movable end of the hydraulic driving rod is fixedly connected to the upper microwave heating plate. The upper microwave heating plate and the adjacent middle partition board are connected by a hinge. The shielding cover is arranged outside the support mechanism.

[0011] Furthermore, the support mechanism includes an upper sealing plate, a plurality of columns, a support frame, and a bottom plate. The support frame is fixedly connected to the bottom plate. The hydraulic telescopic rod is fixedly connected to the support frame. The upper sealing plate is fixedly connected to the support frame. The columns are arranged between the upper sealing plate and the bottom plate, and the columns are slidably connected to the first connection block and the second connection block.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The microwave heating plate uses a microwave generator to uniformly heat the plate, thereby improving the consistency of the drying and curing processes of the plate. The cavity and through holes of the middle partition are designed to discharge steam and introduce air during cooling, achieving the effects of rapid cooling and shaping, and improving quality and efficiency.

[0013] Finally, through the synergistic effect between the microwave heating plate and the middle partition, it is ensured that the pressure applied to the plate is evenly distributed, further improving the production efficiency of the hot pressing of the plate and the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the hot pressing equipment (excluding the shielding cover) for plywood production according to an embodiment of the present invention; Figure 2 Front view schematic diagram of the hot pressing equipment (excluding the shielding cover) for plywood production according to an embodiment of the present invention; Figure 3 is Figure 1 Cross-sectional view schematic diagram of the microwave heating plate; Figure 4 is Figure 1 Cross-sectional view schematic diagram of the middle partition; Figure 5 is Figure 1 Top view schematic diagram of the hot pressing mechanism and the limiting mechanism; Figure 6 is Figure 1 Schematic diagram of the limiting mechanism; Figure 7 is Figure 6 Schematic diagram of the connection between the connecting rod module and the first connection module; Figure 8 is Figure 6 Schematic diagram of the connection between the connecting rod module and the second connection module; Figure 9 Schematic diagram of the hot pressing equipment for plywood production according to an embodiment of the present invention.

[0015] In the figure: 1. Shielding cover; 2. Hydraulic drive rod; 3. Hot pressing mechanism; 31. Microwave heating plate; 311. Heat insulation frame; 312. Microwave generator; 313. First slider; 314. First connecting column; 315. First connecting block; 32. Middle partition; 321. Support shell plate; 322. Vertical plate; 323. Through hole; 324. Second connecting column; 325. Second slider; 326. Air passing port; 327. Second connecting block; 4. Support mechanism; 41. Upper sealing plate; 42. Column; 43. Support frame; 5. Limiting mechanism; 51. Housing; 52. Slide rail; 53. Connecting rod module; 6. Plate. Detailed implementation mode

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0018] As Figures 1 - 8 shown, in some embodiments, a hot pressing device for plywood production includes a hot pressing mechanism 3 and a limiting mechanism 5. Among them, the limiting mechanism 5 is arranged on the side of the hot pressing mechanism 3; through the limiting mechanism 5, the movement of the hot pressing mechanism 3 can be accurately controlled, thereby improving the hot pressing efficiency of the board 6.

[0019] Specifically, the hot pressing mechanism 3 is composed of a plurality of microwave heating plates 31 and a plurality of middle partition plates 32, and these microwave heating plates 31 and middle partition plates 32 are arranged alternately at intervals. Each microwave heating plate 31 and each middle partition plate 32 are respectively connected to the limiting mechanism 5. The function of the limiting mechanism 5 is to limit the gap between adjacent microwave heating plates 31 and middle partition plates 32, ensuring that these components can maintain an appropriate distance during the hot pressing process, thereby ensuring the uniformity and efficiency of the hot pressing effect; this design enables the hot pressing device to more accurately control the hot pressing process during operation, thereby improving the production efficiency and quality of the board 6.

[0020] Among them, each microwave heating plate 31 includes a microwave generator 312 and a first connection module, and this first connection module is arranged on the side of the microwave heating plate 31 and is connected to the limiting mechanism 5 through the first connection module, ensuring the stability and precise control of the microwave heating plate 31 during the hot pressing process.

[0021] It should be noted that the heating principle of the microwave generator 312 is mainly based on the interaction between the microwaves generated by it and the water molecules in the adhesive glue in the board 6, and the process of converting electromagnetic energy into heat energy, realizing the evaporation of the water molecules in the glue, heating the board 6 from the inside to the outside, realizing the uniform heating of the board 6, so as to realize the drying and curing of the board 6, and at the same time applying a certain pressure to complete the hot pressing treatment of the board 6.

[0022] As for the middle partition plate 32, it is designed to have a cavity and a through hole 323, and the cavity is in communication with the through hole 323. The steam generated by the plate 6 during the hot pressing process is discharged through the through hole 323, thereby improving the hot pressing efficiency and the quality of the plate 6. It should be particularly noted that when the hot pressing of the plate 6 reaches the specified time, air is introduced into the hot pressing mechanism 3 through the cavity and the through hole 323, so that the temperature inside it gradually decreases, playing a role in shaping the plate 6.

[0023] In this embodiment, through the adjustment of the limiting mechanism 5, the distance between the microwave heating plate 31 and the middle partition plate 32 can be accurately set, so as to form a series of placement spaces specifically for placing the plate 6, and these spaces can accommodate the plate 6 that has been assembled. Particularly, the size of this placement space is set according to the depth that the microwave can penetrate, ensuring that the microwave can fully act on the plate 6, realizing the overall heating of the plate 6 from the inside to the outside, and further ensuring the uniformity of heating.

[0024] Subsequently, the plate 6 that has been assembled is sequentially placed into these placement spaces. To ensure that the plate 6 can be fully pressed during the heating process, the hydraulic drive rod 2 starts to work and presses the microwave heating plate 31 downward. During this process, the microwave heating plate 31 and the middle partition plate 32 will move downward synchronously, thereby applying a uniform pressure to the plate 6 to ensure that the plate 6 can be uniformly processed during the hot pressing process.

[0025] When the microwave heating plate 31 and the middle partition plate 32 apply sufficient pressure to the plate 6, the microwave generator 312 is immediately powered on. The microwave generator 312 starts to work and heats the plate 6 by emitting microwaves. The purpose of this process is to evaporate the water in the glue in the plate 6 and make it solidify. During the heating process, the generated steam will enter the cavity through the through hole 323 on the middle partition plate 32 and then be discharged through the cavity. Such a design not only helps to control the steam pressure during the heating process, but also ensures that the moisture inside the plate 6 can be effectively discharged while the plate 6 is being heated.

[0026] When the hot pressing time reaches the specified value, the microwave generator 312 is turned off, and air is filled into the cavity through an external device and diffused into the hot pressing mechanism 3 through the through hole 323, so that the temperature inside it gradually decreases, and the plate 6 is subjected to pressure holding and cooling treatment to achieve the shaping effect.

[0027] The microwave heating plate 31 uses the microwave generator 312 to uniformly heat the plate 6, thereby improving the consistency of the drying and curing processes of the plate 6.

[0028] The cavity and through-holes 323 of the middle partition plate 32 are designed to discharge steam and introduce air during cooling, achieving rapid cooling and shaping, and improving quality and efficiency.

[0029] Finally, through the synergistic effect between the microwave heating plate 31 and the middle partition plate 32, it is ensured that the pressure applied to the sheet 6 is evenly distributed, further improving the production efficiency of hot pressing the sheet 6 and the quality of the final product.

[0030] Furthermore, in some embodiments, the microwave heating plate 31 further includes a heat insulation frame 311. The microwave generator 312 is placed in the internal space of the heat insulation frame 311. The heat insulation frame 311 provides a solid installation space for the microwave generator 312 and can ensure that when pressure is applied, it can maintain a stable form and provide uniform pressure for the sheet 6.

[0031] In addition, the first connection module and the heat insulation frame 311 are tightly combined by a fixed connection method, thus ensuring the integrity of the microwave heating plate 31. The number of the first connection modules is carefully designed to be two, and these two first connection modules are arranged at diagonal positions to achieve more uniform force distribution and better structural stability.

[0032] Specifically, each first connection module includes a first slider 313 and a first connection column 314. The first connection column 314 is arranged between the heat insulation frame 311 and the first slider 313 to ensure the firmness of the connection. The first slider 313 is connected to the limit mechanism 5 by a sliding connection method, so that the position and movement of the microwave heating plate 31 can be precisely controlled, thereby improving the accuracy and efficiency of the hot pressing process.

[0033] To further enhance the stability and reliability of the equipment, two groups of first connection blocks 315 are specially designed on both sides of the heat insulation frame 311. These two groups of first connection blocks 315 are symmetrically arranged along the center line of the heat insulation frame 311, and by evenly dispersing the pressure, the stability and load-bearing capacity of the microwave heating plate 31 are improved.

[0034] Furthermore, in some embodiments, the middle partition plate 32 further includes a support shell plate 321, a plurality of vertical plates 322, and two second connection modules. Among them, the cavity is arranged inside the support shell plate 321, the through-holes 323 penetrate the support shell plate 321, the number of the through-holes 323 is multiple, and these through-holes 323 are arranged in an array along the surface of the support shell plate 321. The vertical plates 322 are arranged between adjacent rows of through-holes 323 to provide necessary support and stability. This design not only improves the structural strength of the middle partition plate 32, but also ensures that during the hot pressing process, the middle partition plate 32 can withstand pressures from all directions without deformation.

[0035] Similarly, the second connection module is firmly connected to the side of the support shell plate 321. These two second connection modules are arranged in a diagonal position to ensure the stability of the middle partition plate 32 and the uniform distribution of force. The second connection module is also connected to the limiting mechanism 5 to accurately control the position of the middle partition plate 32 during the hot pressing process.

[0036] Specifically, each second connection module includes a second slider 325 and a second connection column 324, where the second connection column 324 is arranged between the support shell plate 321 and the second slider 325. The second slider 325 is slidably connected to the limiting mechanism 5, which can ensure that the partition plate 32 can smoothly move to the required position during the hot pressing process.

[0037] Air vents 326 and two groups of second connection blocks 327 are also provided on both sides of the support housing 51. The first connection block 315 is arranged corresponding to the second connection block 327, and the air vent 326 is connected to the cavity to ensure that steam can smoothly pass through during the hot pressing process. This design enables the hot pressing equipment to effectively discharge the internal gas during operation, avoiding uneven pressure caused by gas accumulation, and thus ensuring the hot pressing quality. It should be noted that the air vent 326 is not only connected to the cavity but also communicates with external equipment, used to discharge the steam generated during the hot pressing process and introduce low-temperature gas during the cooling stage. The two groups of second connection blocks 327 are symmetrically arranged along the center line of the support shell plate 321, and each second connection block 327 is configured on both sides of the air hole to provide additional connection points, enhancing the structural integrity and operational flexibility of the entire hot pressing equipment.

[0038] Furthermore, in some embodiments, the middle partition plate 32 is made of insulating material. This design aims to avoid uneven heat distribution and the resulting problem of uniform overheating during microwave heating due to the presence of metal or other conductive materials. This overheating phenomenon will further lead to quality defects during the hot pressing process and affect the overall quality of the product. Therefore, by using insulating material to make the middle partition plate 32, these problems can be effectively prevented, ensuring the uniformity of the microwave heating process and the quality of the final product.

[0039] As Figures 5 - 8 shown, in some embodiments, the number of the limiting mechanisms 5 is multiple, and these multiple limiting mechanisms 5 are respectively arranged in one-to-one correspondence with the first connection module and the second connection module. This design ensures that each connection module has a corresponding limiting mechanism 5 for precise control, thereby improving the stability and operational accuracy of the entire hot pressing mechanism 3.

[0040] Among them, each limiting mechanism 5 includes a housing 51, a slide rail 52 and a connecting rod module 53. Among them, the slide rail 52 and the connecting rod module 53 are arranged in the internal space of the housing 51. The housing 51 provides a stable installation platform for the slide rail 52 and the connecting rod module 53, and can also prevent dust and sundries from entering to ensure normal operation.

[0041] The connecting rod module 53 is connected to the first connecting column 314 (or the second connecting column 324) through a connecting structure, and the slide rail 52 is slidably connected to the first slider 313 (or the second slider 325). Through the action of the connecting rod, the connecting rod module 53 can be stretched up and down. This design enables the limiting mechanism 5 to flexibly adjust its position according to the needs during the hot pressing process, so as to realize the feeding and discharging of the plate 6.

[0042] Such as Figure 1 、 Figure 2 and Figure 9 As shown in In some embodiments, the hot pressing device further includes a shielding cover 1, a hydraulic drive rod 2 and a support mechanism 4. The support mechanism 4 is connected to the hot pressing mechanism 3, the fixed end of the hydraulic drive rod 2 is connected to the support mechanism 4, the movable end of the hydraulic drive rod 2 is fixedly connected to the upper microwave heating plate 31, and the upper microwave heating plate 31 and the adjacent middle partition plate 32 are hinged;

[0043] Such as Figure 1 、 Figure 2 and Figure 9 As shown in

[0044] In some embodiments, the hot pressing device further includes a shielding cover 1, a hydraulic drive rod 2 and a support mechanism 4. The support mechanism 4 is closely connected to the hot pressing mechanism 3 to ensure the stability of the entire hot pressing process. The fixed end of the hydraulic drive rod 2 is fixedly connected to the support mechanism 4, and the movable end of the hydraulic drive rod 2 is fixedly connected to the uppermost microwave heating plate 31. Such a design enables the microwave heating plate 31 to effectively move up and down, and provides a downward pressure for the entire device through the hydraulic drive rod 2 to realize the pressing of the plate 6.

[0045] Specifically, the shielding cover 1 is specially designed and arranged outside the support mechanism 4. The function of the shielding cover 1 is to protect the operator from the radiation damage that may occur during the hot pressing process, and at the same time prevent the external electromagnetic interference from affecting the normal operation of the microwave heating plate 31, ensuring the safety and reliability of the sheet 6 production process.

[0046] Furthermore, in some embodiments, the support mechanism 4 includes an upper sealing plate 41, a plurality of columns 42, a support frame 43, and a bottom plate 44. The support frame 43 is fixedly connected to the bottom plate 44, and the hydraulic drive rod 2 is connected to the support frame 43. The upper sealing plate 41 is fixedly connected to the support frame 43. The columns 42 are arranged between the upper sealing plate 41 and the bottom plate, and they can be slidably connected to the first connection block 315 and the second connection block 327 to guide the up and down movement of the microwave heating plate 31 and the middle partition plate 32.

[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0049] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural ways and embodiments without creative work without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A hot pressing device for plywood production, characterized in that, It includes a hot pressing mechanism (3) and a limiting mechanism (5), and the limiting mechanism (5) is arranged on the side of the hot pressing mechanism (3); The hot pressing mechanism (3) includes a plurality of microwave heating plates (31) and a plurality of middle partition plates (32) arranged at intervals therewith. The microwave heating plates (31) and the middle partition plates (32) are respectively connected to the limiting mechanism (5), and the limiting mechanism (5) is used to define the gap between adjacent microwave heating plates (31) and middle partition plates (32); The microwave heating plate (31) includes a microwave generator (312), and the microwave generator (312) is used to heat the plate (6). The middle partition plate (32) is provided with a cavity and through holes (323), and the through holes (323) are arranged on both side surfaces of the cavity.

2. The hot pressing equipment for plywood production according to claim 1, characterized in that, The microwave heating plate (31) further includes a first connection module and a heat insulation frame (311). The microwave generator (312) is placed in the heat insulation frame (311), and the first connection module is fixedly connected to the heat insulation frame (311); There are two first connection modules, and the two first connection modules are arranged diagonally. The first connection module includes a first slider (313) and a first connection column (314). The first connection column (314) is arranged between the heat insulation frame (311) and the first slider (313), and the first slider (313) is slidably connected to the limiting mechanism (5); Two groups of first connection blocks (315) are provided on both sides of the heat insulation frame (311), and the two groups of first connection blocks (315) are symmetrically arranged along the center line of the heat insulation frame (311).

3. The hot pressing equipment for plywood production according to claim 2, characterized in that, The middle partition plate (32) further includes a support shell plate (321), a plurality of vertical plates (322) and two second connection modules. The cavity is arranged in the support shell plate (321), the through holes (323) penetrate through the support shell plate (321), there are a plurality of through holes (323), and the plurality of through holes (323) are arranged in an array along the surface of the support shell plate (321). The vertical plates (322) are arranged between adjacent two rows of through holes (323); The second connection module is fixedly connected to the side of the support shell plate (321), the two second connection modules are arranged diagonally, and the second connection module is connected to the limiting mechanism (5); The second connection module includes a second slider (325) and a second connection column (324), and the second connection column (324) is arranged between the support shell plate (321) and the second slider (325). The second slider (325) is slidably connected to the limiting mechanism (5); Two air passing ports (326) and two groups of second connection blocks (327) are further provided on both sides of the support shell plate (321). The first connection blocks (315) and the second connection blocks (327) are arranged correspondingly. The air passing ports (326) are communicated with the cavity. The two groups of second connection blocks (327) are symmetrically arranged along the center line of the support shell plate (321), and the second connection blocks (327) are arranged on both sides of the air passing ports (326).

4. The hot pressing equipment for plywood production according to claim 1, characterized in that, The middle partition plate (32) is made of insulating material.

5. The hot pressing equipment for plywood production according to claim 3, characterized in that, A plurality of the limiting mechanisms (5) are provided, and the plurality of the limiting mechanisms (5) are respectively arranged in one-to-one correspondence with the first connection module and the second connection module; The limiting mechanism (5) includes a housing (51), a slide rail (52) and a connecting rod module (53). The slide rail (52) and the connecting rod module (53) are arranged in the housing (51). The connecting rod module (53) is connected to the first connecting column (314) and the second connecting column (324), and the slide rail (52) is slidably connected to the first slider (313) and the second slider (325).

6. The hot pressing equipment for plywood production according to claim 3, characterized in that, It further includes a shielding cover (1), a hydraulic driving rod (2) and a supporting mechanism (4). The supporting mechanism (4) is connected to the hot pressing mechanism (3). The fixed end of the hydraulic driving rod (2) is connected to the supporting mechanism (4), and the movable end of the hydraulic driving rod (2) is fixedly connected to the upper microwave heating plate (31). The upper microwave heating plate (31) and the adjacent middle partition plate (32) are hinged; The shielding cover (1) is arranged outside the supporting mechanism (4).

7. The hot pressing equipment for plywood production according to claim 6, characterized in that, The supporting mechanism (4) includes an upper sealing plate (41), a plurality of columns (42), a supporting frame (43) and a bottom plate. The supporting frame (43) is fixedly connected to the bottom plate. The hydraulic telescopic rod is fixedly connected to the supporting frame (43). The upper sealing plate (41) is fixedly connected to the supporting frame (43). The columns (42) are arranged between the upper sealing plate (41) and the bottom plate, and the columns (42) are slidably connected to the first connecting block (315) and the second connecting block (327).

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