Hot pressing device for processing raw bamboo fiber side wall decoration plate and hot pressing method of hot pressing device

Abstract

The invention discloses a hot pressing device for processing a raw bamboo fiber side wall decoration plate and a hot pressing method thereof, relates to the field of automobile side wall decoration plate processing, and aims to solve the technical problems that in the prior art, a rapid cooling mechanism is arranged on an existing hot pressing mold, and when the raw bamboo fiber side wall decoration plate is pressed, the raw bamboo fiber side wall decoration plate cannot be quickly cooled due to non-uniform cooling. The problem that the production quality of the original bamboo fiber side wall decoration plate is affected due to deformation of the original bamboo fiber side wall decoration plate is solved. Guide columns are fixedly connected to the front ends and the rear ends of the two sides of the upper end face of the hot pressing table correspondingly, the lower ends of the middles of the four guide columns are jointly connected with a lower mold fixing plate, the upper ends of the middles of the four guide columns are jointly connected with an upper mold fixing plate, and cooling water cavities are formed in the lower mold and the upper mold correspondingly. A plurality of partition plates are arranged in the cooling water cavity, and a plurality of heat conduction supporting columns are arranged between the upper end face and the lower end face of the cooling water cavity in an array mode.

Description

Technical Field

[0001] The present invention relates to the field of automotive side trim panel processing, and specifically to a hot pressing device and a hot pressing method for processing original bamboo fiber side trim panels for automobiles. Background Art

[0002] Automotive original bamboo fiber side trim panels are automotive interior components made of natural bamboo fiber materials. Utilizing the characteristics of bamboo fiber being lightweight, high-strength, environmentally friendly and renewable, they provide an aesthetically pleasing and practical decoration solution for the automotive side panels. Such trim panels not only have unique textures and qualities, enhancing the natural and warm atmosphere inside the vehicle, but also have good wear resistance, anti-slip properties, and heat and sound insulation effects, contributing to improving the comfort and safety of the vehicle. At the same time, the use of bamboo fiber materials also reflects the automotive manufacturers' emphasis on environmental protection and sustainable development. When producing original bamboo fiber side trim panels, the heated and softened felt material needs to be pressed by a high-pressure mold to form product parts. In this process, the flat felt material is pressed into a specified shape, and at the same time, the melted low-melting-point fibers re-solidify in the part structure to act as a binder, thus forming a high-strength structure similar to "reinforced (polyester fiber) concrete".

[0003] Due to the different shrinkage rates of bamboo original fibers and PET fibers, no rapid cooling mechanism is provided on the existing hot pressing molds. When the original bamboo fiber side trim panel is pressed, due to uneven cooling, the original bamboo fiber side trim panel will deform, thereby affecting the production quality of the original bamboo fiber side trim panel. Therefore, there is an urgent need in the market to develop a hot pressing device for processing original bamboo fiber side trim panels to help people solve the existing problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a hot pressing device for processing original bamboo fiber side trim panels, so as to solve the problem that due to the different shrinkage rates of bamboo original fibers and PET fibers, no rapid cooling mechanism is provided on the existing hot pressing molds. When the original bamboo fiber side trim panel is pressed, due to uneven cooling, the original bamboo fiber side trim panel will deform, thereby affecting the production quality of the original bamboo fiber side trim panel as mentioned in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A hot pressing device for processing bamboo fiber side trim panels, comprising a hot pressing table. On both the front and rear ends of the two sides of the upper end surface of the hot pressing table, guide columns are fixedly connected. The upper ends of the four guide columns are commonly fixedly connected to a support plate. The lower ends of the middle parts of the four guide columns are commonly connected to a lower mold fixing plate. The upper ends of the middle parts of the four guide columns are commonly connected to an upper mold fixing plate. A lower mold is fixedly connected to the upper end of the lower mold fixing plate. An upper mold is fixedly connected to the lower end of the upper mold fixing plate. Cooling water cavities are arranged inside both the lower mold and the upper mold. A plurality of partition plates are arranged inside the cooling water cavity. A plurality of heat conducting support columns are arranged in an array between the upper and lower end surfaces of the cooling water cavity.

[0006] Preferably, water supply pipes and return pipes are respectively fixedly connected to the front and rear ends of the middle parts of one side of the lower mold and the upper mold. Both the water supply pipes and the return pipes are communicated with the cooling water cavity.

[0007] Preferably, a servo motor is fixedly arranged inside the hot pressing table. The upper end of the output shaft of the servo motor is fixedly connected to a rotating pipe. Strip-shaped openings are arranged on both sides of the rotating pipe. A limiting pipe is fixedly connected to the middle part of the upper end surface inside the hot pressing table. The upper end of the rotating pipe is inserted into the limiting pipe.

[0008] Preferably, an internal threaded pipe is fixedly connected to the upper end inside the limiting pipe. The upper end of the internal threaded pipe extends out of the upper end surface of the hot pressing table.

[0009] Preferably, a pressure sensor is fixedly connected to the middle part of the lower end of the lower mold fixing plate. The lower end of the pressure sensor is rotatably connected to a screw rod. The lower end of the screw rod passes through the internal threaded pipe and is inserted into the rotating pipe. The screw rod is threadedly connected to the internal threaded pipe. Rectangular limiting parts are fixedly connected to both the lower ends of the two sides of the screw rod. The two rectangular limiting parts on the screw rod respectively slide into the two strip-shaped openings.

[0010] Preferably, guide pipes are fixedly connected to the front and rear ends of the middle parts of both sides of the lower mold fixing plate and the upper mold fixing plate. The four guide pipes on the lower mold fixing plate and the upper mold fixing plate are respectively sleeved on the four guide columns.

[0011] Preferably, a hydraulic rod is fixedly connected to the middle part of the upper end of the support plate. The telescopic end of the lower end of the hydraulic rod passes through the support plate and is fixedly connected to a lower pressing plate.

[0012] Preferably, both sides of the middle part between the lower end surface of the lower pressing plate and the upper end surface of the upper mold fixing plate are connected by damping telescopic rods. Springs are arranged outside each damping telescopic rod between the lower end surface of the lower pressing plate and the upper end surface of the upper mold fixing plate.

[0013] Preferably, a mold temperature controller is arranged on one side of the hot pressing table. Both sides of the lower mold and the upper mold are connected to the mold temperature controller through control lines.

[0014] A hot pressing method includes the following steps: Step 1: According to the sizes of the installed lower die and upper die, drive the rotating tube to rotate through a servo motor, so that the rotating tube synchronously drives the two rectangular limiting parts to rotate. Drive the screw to rotate by the rotation of the two rectangular limiting parts. Since the screw is threadedly connected to the internal threaded tube, when the screw rotates, it moves up and down through the threaded connection relationship, and then the up and down movement of the screw drives the lower die fixing plate to move up and down, adjusting the distance between the lower die and the upper die, facilitating hot pressing of the original bamboo fiber side trim panels of different sizes; Step 2; Place the hot pressing material of the original bamboo fiber side trim panel on the upper end of the lower die. Drive the lower pressing plate to descend through a hydraulic rod, so that the upper die connected to the lower end of the lower pressing plate closes with the lower die. The hydraulic rod continues to press down the lower pressing plate, causing the damping telescopic rod between the lower pressing plate and the upper die to contract and compress the spring. Through the buffer mechanism composed of the damping telescopic rod and the spring, buffer the acting force of the upper die pressing down on the lower die, slow down the pressure between the lower die and the upper die, and slowly press the hot pressing material of the original bamboo fiber side trim panel to prevent damage to the hot pressing material caused by excessive acting force; Step 3: When the upper die descends and contacts the lower die, control the upper die and the lower die to be heated simultaneously through a mold temperature controller via a control line, so that the upper and lower end faces of the hot pressing material of the original bamboo fiber side trim panel are heated evenly synchronously, preventing deformation of the hot pressing material of the original bamboo fiber side trim panel due to uneven heating. When the hydraulic rod works to press the upper die and the lower die against the hot pressing material of the original bamboo fiber side trim panel, continuously monitor the pressure through a pressure sensor to ensure that the pressure is within a stable range; Step 4: The water supply pipe and the water return pipe on one side of the upper die and the lower die are both connected to an external refrigeration device. After the hot pressing of the hot pressing material of the original bamboo fiber side trim panel between the upper die and the lower die is completed, convey condensed water to the cooling water chambers inside the upper die and the lower die synchronously through the external refrigeration device via the water supply pipe. The cooling water chambers are separated by multiple partition plates to form a cooling water circuit, expanding the cooling water circulation time. At the same time, heat transfer is carried out through multiple heat conducting support columns to improve the cooling efficiency of the upper die and the lower die, and further improve the cooling efficiency of the hot pressing material of the original bamboo fiber side trim panel after pressing. At the same time, ensure that the hot pressing material of the original bamboo fiber side trim panel is cooled evenly. When the hot pressing material of the original bamboo fiber side trim panel is cooled, the hydraulic rod drives the upper die to lift, and then the hot pressed original bamboo fiber side trim panel can be taken out.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) In this invention, by designing a hot pressing die including a cooling water chamber, a partition plate, and heat conducting support columns, efficient and uniform cooling of the hot pressing material for the bamboo fiber side trim panel is achieved. This design not only improves the cooling efficiency but also ensures the uniformity of the hot pressing material during the cooling process, effectively avoiding deformation problems caused by uneven cooling, thereby improving the production quality of the product.

[0016] (2) In this invention, the lifting and adjusting mechanism composed of a servo motor, a rotating tube, a rectangular limiting part, and a screw rod can precisely adjust the distance between the upper die and the lower die to meet the hot pressing requirements of bamboo fiber side trim panels of different sizes. This design not only improves the flexibility of the equipment but also reduces the operation difficulty, providing convenience for quick die change during the production process.

[0017] (3) In this invention, the buffering mechanism composed of a hydraulic rod, a damping telescopic rod, and a spring effectively reduces the force exerted by the upper die on the lower die, preventing damage to the hot pressing material caused by excessive force. At the same time, the introduction of the mold temperature controller enables the upper die and the lower die to be heated simultaneously, ensuring synchronous and uniform heating of the upper and lower end faces of the hot pressing material, further improving the production quality and stability of the product. Description of the Drawings

[0018] Figure 1 is the front view of a hot pressing device for processing bamboo fiber side trim panels according to the present invention; Figure 2 is the main sectional view of the present invention; Figure 3 is the side sectional view of the cooling water chamber of the present invention; Figure 4 is the side sectional view of the damping telescopic rod of the present invention; Figure 5 is the top sectional view of the cooling water chamber of the present invention; Figure 6 is the enlarged detail view A of the present invention.

[0019] In the figures: 1, hot pressing table; 101, servo motor; 102, rotating tube; 103, strip-shaped opening; 104, limiting tube; 105, internally threaded tube; 106, guiding column; 107, support plate; 108, hydraulic rod; 109, lower pressing plate; 2, lower die fixing plate; 201, pressure sensor; 202, screw rod; 203, rectangular limiting part; 204, upper die fixing plate; 3, lower die; 301, upper die; 302, cooling water chamber; 303, partition plate; 304, heat conducting support column; 305, water supply pipe; 306, water return pipe; 307, damping telescopic rod; 308, spring; 4, guiding tube; 5, mold temperature controller; 501, control line. Detailed Embodiments

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.

[0021] Please refer to Figure 1-6 , an embodiment provided by the present invention: a hot pressing device for processing the side trim panel of bamboo fiber, including a hot pressing table 1. At the front, rear, left, and right ends of the upper end surface of the hot pressing table 1, guide columns 106 are fixedly connected. The upper ends of the four guide columns 106 are commonly fixedly connected to a support plate 107. The lower ends of the middle parts of the four guide columns 106 are commonly connected to a lower mold fixing plate 2. The upper ends of the middle parts of the four guide columns 106 are commonly connected to an upper mold fixing plate 204. A lower mold 3 is fixedly connected to the upper end of the lower mold fixing plate 2. An upper mold 301 is fixedly connected to the lower end of the upper mold fixing plate 204. Cooling water cavities 302 are arranged inside both the lower mold 3 and the upper mold 301. A plurality of partition plates 303 are arranged inside the cooling water cavities 302. A plurality of heat-conducting support columns 304 are arranged in an array between the upper and lower end surfaces of the cooling water cavities 302. At the front, rear, left, and right ends of the middle part of one side of the lower mold 3 and the upper mold 301, a water supply pipe 305 and a water return pipe 306 are respectively fixedly connected. Both the water supply pipe 305 and the water return pipe 306 are communicated with the cooling water cavities 302. The water supply pipe 305 and the water return pipe 306 will convey condensed water into the cooling water cavities 302 inside the upper mold 301 and the lower mold 3. The cooling water cavities 302 are separated by a plurality of partition plates 303 to form a cooling water circuit, thereby extending the circulation time of the cooling water and improving the cooling efficiency. At the same time, a plurality of heat-conducting support columns 304 will also conduct heat, further improving the cooling effect. When the hot pressing material of the bamboo fiber side trim panel cools to an appropriate temperature.

[0022] Please refer to Figure 2 and Figure 6, a servo motor 101 is fixedly arranged inside the hot press table 1. The upper end of the output shaft of the servo motor 101 is fixedly connected to a rotating tube 102. Both sides of the rotating tube 102 are provided with strip-shaped openings 103. The middle part of the upper end face inside the hot press table 1 is fixedly connected to a limiting tube 104. The upper end of the rotating tube 102 is inserted into the inside of the limiting tube 104. The upper end inside the limiting tube 104 is fixedly connected to an internal thread tube 105. The upper end of the internal thread tube 105 extends out of the upper end face of the hot press table 1. The middle part of the lower end of the lower mold fixing plate 2 is fixedly connected to a pressure sensor 201. The lower end of the pressure sensor 201 is rotatably connected to a screw rod 202. The lower end of the screw rod 202 passes through the internal thread tube 105 and is inserted into the inside of the rotating tube 102. The screw rod 202 is threadedly connected to the internal thread tube 105. Both lower ends of the screw rod 202 are fixedly connected with rectangular limiting parts 203. The two rectangular limiting parts 203 on the screw rod 202 respectively slide into the two strip-shaped openings 103. In order to hot press the original bamboo fiber side trim panels of different sizes, it is first necessary to adjust the distance between the lower mold 3 and the upper mold 301. This process is achieved by the servo motor 101. After starting the servo motor 101, it will drive the rotating tube 102 to rotate. The rotation of the rotating tube 102 will further drive the rotation of the two rectangular limiting parts 203. Due to the threaded connection relationship between the screw rod 202 and the internal thread tube 105, when the rectangular limiting part 203 rotates, it will drive the screw rod 202 to move up and down. In this way, by adjusting the up and down movement of the screw rod 202, the up and down movement of the lower mold fixing plate 2 can be driven, so as to accurately adjust the distance between the lower mold 3 and the upper mold 301.

[0023] Please refer to Figure 2-3, guide tubes 4 are fixedly connected to the front and rear ends on both sides of the middle parts of the lower die fixing plate 2 and the upper die fixing plate 204. Four guide tubes 4 on the lower die fixing plate 2 and the upper die fixing plate 204 are respectively sleeved on four guide posts 106. The middle part of the upper end of the support plate 107 is fixedly connected with a hydraulic rod 108. The telescopic end of the lower end of the hydraulic rod 108 passes through the support plate 107 and is fixedly connected with a lower pressing plate 109. Both sides of the middle part between the lower end surface of the lower pressing plate 109 and the upper end surface of the upper die fixing plate 204 are connected by damping telescopic rods 307. Springs 308 are arranged on the outside of each damping telescopic rod 307 between the lower end surface of the lower pressing plate 109 and the upper end surface of the upper die fixing plate 204. After adjusting the die spacing, next, the hot pressing material of the original bamboo fiber side trim panel needs to be placed on the upper end of the lower die 3. Then, through the telescopic movement of the hydraulic rod 108, the lower pressing plate 109 is driven to descend. When the lower pressing plate 109 descends to a certain extent, the upper die 301 connected to its upper end will close with the lower die 3. At this time, the hydraulic rod 108 will continue to press down, causing the damping telescopic rods 307 between the lower pressing plate 109 and the upper die 301 to contract and compress the springs 308. The design of this buffer mechanism can slow down the acting force of the upper die 301 on the lower die 3 and prevent the hot pressing material from being damaged due to excessive acting force. Through this step, the hot pressing material of the original bamboo fiber side trim panel can be pressed slowly and evenly.

[0024] Please refer to Figure 1 and Figure 2 , a mold temperature controller 5 is arranged on one side of the hot pressing table 1. Both the lower die 3 and the upper die 301 are connected to the mold temperature controller 5 through control lines 501 on one side. When the upper die 301 contacts the lower die 3, the mold temperature controller 5 will simultaneously control the upper die 301 and the lower die 3 to be heated through the control lines 501. In this way, the hot pressing material of the original bamboo fiber side trim panel can be evenly heated on both the upper and lower end faces, preventing deformation problems caused by uneven heating. At the same time, the hydraulic rod 108 will continue to work to press the hot pressing material of the original bamboo fiber side trim panel between the upper die 301 and the lower die 3. During this process, the pressure sensor 201 will continuously monitor the pressure value to ensure that the pressure remains within a stable range, thereby ensuring the hot pressing effect.

[0025] A hot pressing method includes the following steps: Step 1: According to the sizes of the lower die 3 and the upper die 301 installed, the servo motor 101 drives the rotating pipe 102 to rotate, thereby synchronously driving the two rectangular limiting parts 203 on the rotating pipe 102 to rotate. The rotation of the two rectangular limiting parts 203 drives the screw rod 202 to rotate. Since the screw rod 202 is threadedly connected to the internal thread pipe 105, when the screw rod 202 rotates, it moves up and down through the threaded connection relationship. Thus, the up and down movement of the screw rod 202 drives the lower die fixing plate 2 to move up and down, adjusting the distance between the lower die 3 and the upper die 301, facilitating the hot pressing of the original bamboo fiber side trim panels of different sizes. Step 2: Place the hot pressing material of the original bamboo fiber side trim panel on the upper end of the lower die 3. The hydraulic rod 108 drives the lower pressing plate 109 to descend, causing the upper die 301 connected to the lower end of the lower pressing plate 109 to close with the lower die 3. The hydraulic rod 108 continues to press down the lower pressing plate 109, causing the damping telescopic rod 307 between the lower pressing plate 109 and the upper die 301 to contract and compress the spring 308. Through the buffer mechanism composed of the damping telescopic rod 307 and the spring 308, the force of the upper die 301 pressing down on the lower die 3 is buffered, reducing the pressure between the lower die 3 and the upper die 301, enabling the slow pressing of the hot pressing material of the original bamboo fiber side trim panel, and preventing damage to the hot pressing material due to excessive force. Step 3: When the upper die 301 descends and contacts the lower die 3, the mold temperature controller 5 controls the upper die 301 and the lower die 3 to be heated simultaneously via the control line 501, enabling the upper and lower end faces of the hot pressing material of the original bamboo fiber side trim panel to be uniformly heated synchronously, preventing deformation of the hot pressing material of the original bamboo fiber side trim panel due to uneven heating. When the hydraulic rod 108 operates to press the upper die 301 and the lower die 3 against the hot pressing material of the original bamboo fiber side trim panel, the pressure is continuously monitored by the pressure sensor 201 to ensure that the pressure is within a stable range. Step 4: The water supply pipe 305 and the water return pipe 306 on one side of the upper die 301 and the lower die 3 are both connected to an external refrigeration device. After the hot pressing of the hot pressing material of the original bamboo fiber side trim panel by the upper die 301 and the lower die 3 is completed, the external refrigeration device conveys condensed water to the cooling water cavity 302 inside the upper die 301 and the lower die 3 synchronously via the water supply pipe 305. The cooling water cavity 302 is divided by multiple partition plates 303 to form a cooling water circuit, extending the cooling water circulation time. At the same time, heat transfer is carried out through multiple heat conducting support columns 304, improving the cooling efficiency of the upper die 301 and the lower die 3, thereby enhancing the cooling efficiency of the hot pressing material of the original bamboo fiber side trim panel after pressing, and ensuring uniform cooling of the hot pressing material of the original bamboo fiber side trim panel. When the hot pressing material of the original bamboo fiber side trim panel is cooled, the hydraulic rod 108 drives the upper die 301 to lift, and then the hot pressed original bamboo fiber side trim panel can be taken out.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any respect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A hot pressing device for processing raw bamboo fiber side panel, comprising a hot pressing table (1), characterized in that: Guide columns (106) are fixedly connected to both front and rear ends of the upper end surface of the hot pressing platform (1); the upper ends of the four guide columns (106) are commonly fixedly connected to a support plate (107); the middle lower ends of the four guide columns (106) are commonly connected to a lower mold fixing plate (2); the middle upper ends of the four guide columns (106) are commonly connected to an upper mold fixing plate (204); the upper end of the lower mold fixing plate (2) is fixedly connected to a lower mold (3); the lower end of the upper mold fixing plate (204) is fixedly connected to an upper mold (301); cooling water chambers (302) are arranged inside the lower mold (3) and the upper mold (301); a plurality of partition plates (303) are arranged inside the cooling water chamber (302); and a plurality of heat-conducting support columns (304) are arranged in an array between the upper and lower end surfaces of the cooling water chamber (302).

2. The hot pressing device for processing the original bamboo fiber side panel according to claim 1, characterized in that: A water supply pipe (305) and a water return pipe (306) are respectively fixedly connected to the front and rear ends of the middle part of one side of the lower mold (3) and the upper mold (301), and the water supply pipe (305) and the water return pipe (306) are both in communication with the cooling water cavity (302).

3. The hot pressing device for processing raw bamboo fiber side panel according to claim 1, characterized in that: A servo motor (101) is fixedly arranged inside the hot press platform (1), the upper end of the output shaft of the servo motor (101) is fixedly connected to a rotating tube (102), both sides of the rotating tube (102) are provided with strip openings (103), and a limiting tube (104) is fixedly connected to the middle of the upper end surface inside the hot press platform (1), and the upper end of the rotating tube (102) is inserted into the interior of the limiting tube (104).

4. The hot pressing device for processing the original bamboo fiber side panel according to claim 3, characterized in that: The upper end of the interior of the limiting tube (104) is fixedly connected to an internally threaded tube (105), and the upper end of the internally threaded tube (105) extends out of the upper end surface of the hot pressing platform (1).

5. The hot pressing device for processing the original bamboo fiber side panel according to claim 4, characterized in that: A pressure sensor (201) is fixedly connected to the middle of the lower end of the lower mold fixing plate (2), and a screw rod (202) is rotatably connected to the lower end of the pressure sensor (201). The lower end of the screw rod (202) passes through the internal threaded tube (105) and is inserted into the interior of the rotating tube (102). The screw rod (202) is threadedly connected to the internal threaded tube (105). The lower ends of both sides of the screw rod (202) are fixedly connected to rectangular limiting portions (203), and the two rectangular limiting portions (203) on the screw rod (202) slide into the interior of the two strip-shaped openings (103) respectively.

6. The hot pressing device for processing raw bamboo fiber side panel according to claim 1, characterized in that: The front and rear ends of both sides of the middle of the lower mold fixing plate (2) and the upper mold fixing plate (204) are fixedly connected with guide tubes (4), and the four guide tubes (4) on the lower mold fixing plate (2) and the upper mold fixing plate (204) are respectively inserted into four guide columns (106).

7. The hot pressing device for processing raw bamboo fiber side panel according to claim 1, characterized in that: A hydraulic rod (108) is fixedly connected to the middle of the upper end of the support plate (107), and a telescopic end of the lower end of the hydraulic rod (108) passes through the support plate (107) and is fixedly connected to a lower pressing plate (109).

8. The hot pressing device for processing raw bamboo fiber side panel according to claim 7, characterized in that: Both sides of the middle portion between the lower end surface of the lower pressing plate (109) and the upper end surface of the upper mold fixing plate (204) are connected via damping telescopic rods (307), and a spring (308) is provided between the lower end surface of the lower pressing plate (109) and the upper end surface of the upper mold fixing plate (204) and on the outside of each damping telescopic rod (307).

9. The hot pressing device for processing raw bamboo fiber side panel according to claim 1, characterized in that: A mold temperature controller (5) is provided on one side of the hot pressing platform (1), and one side of each of the lower mold (3) and the upper mold (301) is connected to the mold temperature controller (5) via a control line (501).

10. A hot pressing method, implemented based on a hot pressing device for processing raw bamboo fiber side panel according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: According to the sizes of the installed lower mold (3) and upper mold (301), the servo motor (101) drives the rotating tube (102) to rotate, thereby causing the rotating tube (102) to synchronously drive the two rectangular limiting parts (203) to rotate, and the two rectangular limiting parts (203) are rotated to drive the screw rod (202) to rotate. Since the screw rod (202) is threadedly connected to the internal threaded tube (105), the screw rod (202) is lifted and lowered through the threaded connection when it rotates, and the lifting of the screw rod (202) drives the lower mold fixing plate (2) to lift and lower, and adjusts the distance between the lower mold (3) and the upper mold (301), so as to facilitate hot pressing of original bamboo fiber side panel trims of different sizes; Step 2: placing the original bamboo fiber side panel hot-pressing material on the upper end of the lower mold (3), driving the lower pressing plate (109) to descend through the hydraulic rod (108), so that the upper mold (301) connected to the lower end of the lower pressing plate (109) and the lower mold (3) are closed, and the hydraulic rod (108) continues to press the lower pressing plate (109) downward, so that the damping telescopic rod (307) between the lower pressing plate (109) and the upper mold (301) contracts and compresses the spring (308), and the buffer mechanism composed of the damping telescopic rod (307) and the spring (308) buffers the force of the upper mold (301) pressing down the lower mold (3), reduces the pressure between the lower mold (3) and the upper mold (301), and the original bamboo fiber side panel hot-pressing material is slowly pressed to prevent the hot-pressing material from being damaged due to excessive force; Step 3: When the upper mold (301) descends to contact the lower mold (3), the mold temperature controller (5) controls the upper mold (301) and the lower mold (3) to be heated simultaneously via the control line (501), so that the upper and lower end surfaces of the original bamboo fiber side panel hot pressing material are heated synchronously and evenly, thereby preventing the original bamboo fiber side panel hot pressing material from being deformed due to uneven heating. When the hydraulic rod (108) works to make the upper mold (301) and the lower mold (3) press the original bamboo fiber side panel hot pressing material, the pressure is continuously monitored by the pressure sensor (201) to ensure that the pressure is within a stable range. Step 4: The water supply pipe (305) and the water return pipe (306) on one side of the upper mold (301) and the lower mold (3) are connected to an external refrigeration device. After the hot pressing of the original bamboo fiber side panel material of the upper mold (301) and the lower mold (3) is completed, the condensed water is synchronously transported to the cooling water chamber (302) inside the upper mold (301) and the lower mold (3) through the water supply pipe (305) through the external refrigeration device. The cooling water chamber (302) is divided into two parts by a plurality of partition plates (303). A cooling water loop is formed to extend the cooling water circulation time. At the same time, heat is transferred through a plurality of heat-conducting support columns (304), thereby improving the cooling efficiency of the upper mold (301) and the lower mold (3), thereby improving the cooling efficiency of the original bamboo fiber side panel hot-pressing material after pressing, and ensuring that the original bamboo fiber side panel hot-pressing material is evenly cooled. When the original bamboo fiber side panel hot-pressing material is cooled, the hydraulic rod (108) drives the upper mold (301) to lift, and the original bamboo fiber side panel that has been hot-pressed can be taken out.

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