A hot-pressing device based on composite board processing

Abstract

The application belongs to the technical field of composite board processing equipment, and particularly relates to a hot-pressing equipment based on composite board processing. If dust or particles attached to the surface of the board before hot pressing are not cleaned, pits, imprints and other defects are easily caused, and the quality and yield of finished products are reduced. The following scheme is proposed, which comprises a base, a hot-pressing machine body arranged on the base, two lifting tracks arranged on the hot-pressing machine body, two lifting blocks arranged on the corresponding lifting tracks, and support plates arranged on the two lifting blocks. The hot-pressing equipment based on composite board processing has a board surface cleaning assembly which can remove hard particles by high-frequency vibration scrapers, and can realize secondary cleaning and dust suction recovery by simultaneously rotating cleaning rollers, so that double-sided efficient cleaning is realized. Meanwhile, the cleaning rollers are convenient to disassemble and assemble, continuous operation is ensured, hot-pressing pits, pockmarks and other defects are effectively avoided, and the surface quality and yield of the board are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of composite board processing equipment technology, and in particular to a hot pressing device based on composite board processing. Background Technology

[0002] Composite panels refer to multi-layered structural panels made by combining two or more materials with different properties through processes such as lamination, pressure, and chemical reaction using adhesives or their own melting characteristics. The aim is to achieve synergistic complementarity in properties such as strength, wear resistance, fire resistance, or decorative properties. In its processing, the core role of the hot press is to simultaneously apply precise high temperature and high pressure, which not only causes the adhesive to melt and flow rapidly and fully penetrate into the interior of each layer of material to achieve chemical curing and cross-linking, thus giving the panel a strong interlayer bond, but also uses pressure to forcibly compress the loose components to a specified density and thickness, while effectively expelling air trapped between layers and eliminating internal stress. Ultimately, this ensures that the finished panel has a smooth and flat surface, uniform physical and mechanical properties, and good dimensional stability in subsequent use.

[0003] When existing hot pressing equipment processes composite boards, dust or hard particles may adhere to both sides of the boards during transportation and loading. If these particles are not cleaned before hot pressing, defects such as pits, pinholes, and indentations are easily formed on the surface of the finished product. This leads to a decline in product appearance quality and substandard surface flatness. In severe cases, it can even cause the entire batch of boards to be scrapped, affecting the yield rate and production efficiency of subsequent processes. Summary of the Invention

[0004] This invention discloses a hot pressing device based on composite board processing, which aims to solve the technical problem in the background art that if dust or particles attached to the surface of the board are not cleaned before hot pressing, defects such as pits and embossing are easily caused, reducing the quality and yield of finished products.

[0005] This invention proposes a hot pressing device based on composite sheet processing, comprising: A base, on which a hot press body is mounted, and the hot press body is provided with two lifting rails; Two lifting blocks are respectively set on corresponding lifting tracks, and each of the two lifting blocks is provided with a support plate; Two H-shaped frames are respectively set on corresponding support plates; Two panel cleaning components are arranged opposite to each other on an H-shaped frame. Each of the two panel cleaning components includes two hollow rotating shafts and two main moving blocks. Two plate preheating assemblies are arranged opposite each other on an H-shaped frame. Each of the two plate preheating assemblies includes two rotating shafts and two auxiliary moving blocks.

[0006] In a preferred embodiment, the panel cleaning assembly further includes: Two sliding sleeves, one end of each sliding sleeve is slidably connected to the interior of one end of a corresponding hollow rotating shaft, and the two hollow rotating shafts are respectively connected to the interior of the corresponding main moving block through bearings; Two sliding frames are respectively set on one side of the corresponding main moving block, and the two main moving blocks are slidably connected to the inside of the corresponding H-shaped frame.

[0007] In a preferred embodiment, the panel cleaning assembly further includes: Two embedded blocks are respectively embedded inside the other end of the corresponding sliding groove sleeve; Two actuating rings are respectively fitted onto the outer wall of the other end of the corresponding hollow rotating shaft; Two locking springs are respectively disposed inside the corresponding hollow rotating shaft. One end of each locking spring is fixedly connected to one end of the corresponding sliding groove sleeve, and the other end of each locking spring is fixedly connected to the inner wall of the corresponding hollow rotating shaft.

[0008] Two sliding blocks are slidably connected to the inside of the corresponding slide rail frame.

[0009] In a preferred embodiment, the panel cleaning assembly further includes: The cleaning roller is fixedly connected to two embedded blocks on opposite sides. Two arc-shaped blocks are respectively disposed on the outer wall of the corresponding sliding block, and the two arc-shaped blocks can respectively press and contact the corresponding actuating ring.

[0010] In a preferred embodiment, the panel cleaning assembly further includes: Two telescopic springs are provided, with one end of each spring being disposed at one end of a corresponding sliding block, and the other end of each spring being fixedly connected to the inner wall of one end of a corresponding slide rail frame.

[0011] In a preferred embodiment, the panel cleaning assembly further includes: A vacuum cleaner scraper is mounted on two sliding blocks, and multiple vacuum holes are evenly spaced on the inclined surface of the vacuum cleaner scraper. The dust collection bin is located on the upper side of the suction scraper.

[0012] In a preferred embodiment, the panel cleaning assembly further includes: Two suction pipes, one end of each suction pipe is inserted into the two ends of the dust collection bin, and the other end of each suction pipe is inserted into the two ends of the suction scraper. Two vacuum pumps are installed on the outer wall of their respective vacuum pipes.

[0013] In a preferred embodiment, the plate preheating assembly further includes: A heat-conducting roller is fixedly connected to one side of two rotating shafts, and the two rotating shafts are respectively connected to the interior of the corresponding auxiliary moving block through bearings; Two rotary motors are respectively mounted on corresponding auxiliary moving blocks. The two auxiliary moving blocks are slidably connected inside the corresponding H-shaped frame. The drive ends of the two rotary motors are respectively connected to one end of the corresponding rotating shaft through couplings.

[0014] In a preferred embodiment, the plate preheating assembly further includes: Two U-shaped tubes are arranged opposite each other inside the heat-conducting roller, with the air outlet and air inlet of the two U-shaped tubes located outside the heat-conducting roller.

[0015] In a preferred embodiment, the plate preheating assembly further includes: Two air intake heads are respectively set on the outer wall of the air intake end of the corresponding U-shaped tube; Two air outlets are respectively installed on the outer wall of the air outlet end of the corresponding U-shaped tube, and a suction pump is also installed on the outer wall of the air outlet end of each of the two U-shaped tubes.

[0016] In a preferred embodiment, it also includes: Two drive belts are respectively installed on the outer wall of the corresponding hollow rotating shaft and the rotating shaft; Multiple adjustable telescopic rods are respectively set on corresponding H-shaped frames, and the telescopic ends of the multiple adjustable telescopic rods are respectively fixedly connected to the corresponding main moving block and the corresponding auxiliary moving block.

[0017] As can be seen from the above, the hot pressing equipment based on composite board processing provided by the present invention has a board surface cleaning component that powerfully removes hard particles through a high-frequency vibrating scraper, and is combined with a synchronously rotating cleaning roller for secondary cleaning and dust collection, achieving efficient cleaning on both sides. At the same time, the cleaning roller is easy to disassemble and assemble, ensuring continuous operation, effectively avoiding defects such as hot pressing pits and pockmarks, and significantly improving the surface quality and yield of the board. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a hot pressing device based on composite sheet processing proposed in this invention; Figure 2 This is a schematic diagram of the overall structure of the lifting track of a hot pressing equipment based on composite board processing proposed in this invention; Figure 3 This is a schematic diagram of the overall structure of a panel cleaning component in a hot pressing device based on composite panel processing, as proposed in this invention. Figure 4This is an exploded structural diagram of a panel cleaning component for a hot pressing device based on composite panel processing, as proposed in this invention. Figure 5 This is an exploded structural diagram of the slide rail frame in the panel cleaning assembly of a hot pressing equipment based on composite panel processing proposed in this invention; Figure 6 This is a schematic diagram of the overall structure of the preheating component of a hot pressing device based on composite sheet processing proposed in this invention; Figure 7 This is a schematic cross-sectional view of the internal structure of the heat-conducting roller in a hot-pressing device based on composite sheet processing, as proposed in this invention.

[0019] In the diagram: 1. Hot press body; 2. Lifting rail; 3. Panel cleaning assembly; 301. Dust suction scraper; 302. Cleaning roller; 303. Dust storage bin; 304. Dust pump; 305. Dust suction pipe; 306. Hollow rotating shaft; 307. Actuating ring; 308. Locking spring; 309. Sliding sleeve; 310. Embedded block; 311. Main moving block; 312. Slide frame; 313. Arc block; 314. Sliding block; 315. Telescopic spring; 4. Base; 5. Lifting block; 6. Support plate; 7. H-shaped frame; 8. Panel preheating assembly; 801. Rotary motor; 802. Secondary moving block; 803. Heat-conducting roller; 804. U-shaped tube; 805. Suction head; 806. Rotating shaft; 807. Suction pump; 808. Air outlet; 9. Adjustable telescopic rod; 10. Drive belt. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] The hot pressing equipment disclosed in this invention, based on the processing of composite boards, is mainly used in scenarios where dust or particles adhering to the surface of the board before hot pressing are not cleaned, which can easily lead to defects such as pits and embossing, reducing the quality and yield of finished products.

[0022] Reference Figures 1-7 A hot pressing device based on composite sheet processing, comprising: Base 4, hot press body 1 is mounted on base 4, and two lifting rails 2 are mounted on hot press body 1; Two lifting blocks 5 are respectively set on the corresponding lifting rails 2, and support plates 6 are respectively set on the two lifting blocks 5; Two H-shaped frames 7 are respectively set on the corresponding support plates 6; Two panel cleaning components 3 are arranged opposite to each other on the H-shaped frame 7. Each panel cleaning component 3 includes two hollow rotating shafts 306 and two main moving blocks 311. Two plate preheating components 8 are arranged opposite each other on the H-shaped frame 7. Each plate preheating component 8 includes two rotating shafts 806 and two auxiliary moving blocks 802.

[0023] In this invention, the panel cleaning assembly 3 further includes: Two sliding sleeves 309, one end of each sliding sleeve 309 is slidably connected to the inside of one end of a corresponding hollow rotating shaft 306, and the two hollow rotating shafts 306 are respectively connected to the inside of the corresponding main moving block 311 through bearings; Two sliding brackets 312 are respectively disposed on one side of the corresponding main moving block 311, and the two main moving blocks 311 are respectively slidably connected to the interior of the corresponding H-shaped frame 7.

[0024] In this invention, the panel cleaning assembly 3 further includes: Two embedded blocks 310 are respectively embedded inside the other end of the corresponding sliding groove sleeve 309; Two actuating rings 307 are respectively sleeved on the outer wall of the other end of the corresponding hollow rotating shaft 306; Two locking springs 308 are respectively disposed inside the corresponding hollow rotating shaft 306. One end of each locking spring 308 is fixedly connected to one end of the corresponding sliding sleeve 309, and the other end of each locking spring 308 is fixedly connected to the inner wall of the corresponding hollow rotating shaft 306.

[0025] Two sliding blocks 314 are slidably connected to the inside of the corresponding slide rail frame 312.

[0026] In this invention, the panel cleaning assembly 3 further includes: Cleaning roller 302 is fixedly connected to the opposite side of two embedded blocks 310; Two arc-shaped blocks 313 are respectively disposed on the outer wall of the corresponding sliding block 314, and the two arc-shaped blocks 313 can respectively press and contact the corresponding actuating ring 307.

[0027] In this invention, the panel cleaning assembly 3 further includes: Two telescopic springs 315 are provided, one end of each of the two telescopic springs 315 is respectively set at one end of the corresponding sliding block 314, and the other end of each of the two telescopic springs 315 is respectively fixedly connected to the inner wall of one end of the corresponding slide rail 312.

[0028] In this invention, the panel cleaning assembly 3 further includes: The vacuum cleaner 301 is mounted on two sliding blocks 314, and multiple vacuum holes are evenly spaced on the inclined surface of the vacuum cleaner 301. Dust collection bin 303 is located on the upper side of the dust suction scraper 301.

[0029] In this invention, the panel cleaning assembly 3 further includes: Two suction pipes 305, one end of each suction pipe 305 is inserted into the two ends of the dust collection chamber 303, and the other end of each suction pipe 305 is inserted into the two ends of the suction scraper 301. Two vacuum pumps 304 are respectively installed on the outer wall of the corresponding vacuum pipe 305.

[0030] Specifically, the board material is actively conveyed to the interior of two hot press plates via two upper and lower cleaning rollers 302 and two upper and lower heat-conducting rollers 803. During this process, two suction scrapers 301 scrape off the hard impurities attached to the upper and lower surfaces of the board material. As the two hollow rotating shafts 306 continue to rotate, the two actuating rings 307 intermittently and continuously squeeze and contact the corresponding arc-shaped blocks 313. The two arc-shaped blocks 313 then intermittently drive the corresponding sliding blocks 314 to move inside the corresponding slide frame 312. Combined with the reset action of the two telescopic springs 315, the two suction scrapers 301 vibrate at high frequency to efficiently scrape off impurities with strong adhesion. The dust raised on the surface of the board material is absorbed into the dust storage bin 303 through the two suction pipes 305 by the two activated dust pumps 304 for later recycling. When the board material passes through the two cleaning rollers 302, the cleaning rollers 302 further clean the dust on the surface of the board material.

[0031] In specific application scenarios, the vacuum scraper 301 removes hard impurities while using high-frequency vibration to break the adhesion of stubborn deposits, significantly improving cleaning intensity and preventing impurities from affecting the hot-press bonding quality. After the vacuum scraper 301 performs coarse cleaning, the cleaning roller 302 uses a rotating contact method to adsorb residual floating dust, ensuring the cleanliness of the upper and lower surfaces of the board. The combined use of the dust storage bin 303, the vacuum pump 304, and the vacuum pipe 305 forms a negative pressure dust collection system, which simultaneously sucks up dust at the moment of scraping, suppressing dust diffusion from the source, protecting the working environment, and preventing dust from falling onto the board again. The locking spring 308, the sliding sleeve 309, and the embedded block 310 form a quick-release locking structure that allows for quick disassembly and installation of the cleaning roller 302 through axial compression, without the need for special tools, greatly reducing maintenance downtime.

[0032] Reference Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7In a preferred embodiment, the plate preheating assembly 8 further includes: The heat-conducting roller 803 is fixedly connected to the opposite side of the two rotating shafts 806. The two rotating shafts 806 are respectively connected to the interior of the corresponding auxiliary moving block 802 through bearings. Two rotary motors 801 are respectively mounted on corresponding auxiliary moving blocks 802. The two auxiliary moving blocks 802 are slidably connected inside the corresponding H-shaped frame 7. The drive ends of the two rotary motors 801 are respectively connected to one end of the corresponding rotating shaft 806 through couplings.

[0033] In this invention, the plate preheating assembly 8 further includes: Two U-shaped tubes 804 are arranged opposite each other inside the heat-conducting roller 803, with the air outlet and air inlet of the two U-shaped tubes 804 located outside the heat-conducting roller 803.

[0034] In this invention, the plate preheating assembly 8 further includes: Two air intake heads 805 are respectively disposed on the outer wall of the air intake end of the corresponding U-shaped tube 804; Two air outlets 808 are respectively installed on the outer wall of the air outlet end of the corresponding U-shaped tube 804, and a suction pump 807 is also installed on the outer wall of the air outlet end of the two U-shaped tubes 804 respectively.

[0035] Specifically, when the sheet material passes through the two heat-conducting rollers 803, the working environment of the hot press body 1 is at a certain high temperature. Therefore, by turning on the two suction pumps 807, the high-temperature air in the working environment enters the interior of the two U-shaped tubes 804 through the two suction heads 805 and finally exits through the two air outlets 808. During the process of the high-temperature air flowing inside the two U-shaped tubes 804, it continuously heats the heat-conducting rollers 803 through the two U-shaped tubes 804, thereby achieving the preheating of the sheet material while the two heat-conducting rollers 803 are conveying it.

[0036] In specific application scenarios, the heat-conducting roller 803 serves as a heat exchange carrier while fulfilling its conveying function, allowing the sheet material to be preheated before entering the hot pressing zone, reducing the temperature difference between the hot pressing plate and the sheet material, thereby shortening the hot pressing holding time and increasing the production cycle. The U-shaped path formed by the U-shaped tube 804 extends the residence time of high-temperature air inside the heat-conducting roller 803, enhancing the fullness of heat exchange. Furthermore, the suction head 805 directly draws in high-temperature air from around the hot press, eliminating the need for an additional heating source and enabling waste heat recovery and utilization.

[0037] Reference Figures 2-7 In a preferred embodiment, it also includes: Two drive belts 10 are respectively disposed on the outer walls of the corresponding hollow rotating shaft 306 and rotating shaft 806; Multiple adjustable telescopic rods 9 are respectively set on the corresponding H-shaped frame 7, and the telescopic ends of the multiple adjustable telescopic rods 9 are respectively fixedly connected to the corresponding main moving block 311 and the corresponding auxiliary moving block 802.

[0038] Working principle: In use, firstly, the two opposite board cleaning components 3 and the two opposite board preheating components 8 are moved to the two hot press plates at the bottom of the hot press body 1 by the lifting rail 2. Then, by opening multiple adjusting telescopic rods 9, the corresponding multiple main moving blocks 311 and multiple auxiliary moving blocks 802 slide along the inside of the two H-shaped frames 7, thereby realizing the simultaneous adjustment of the distance between the two board cleaning components 3 and the two board preheating components 8, so as to adapt to the processing of boards of different thicknesses. After the spacing between the two panel cleaning components 3 and the spacing between the two panel preheating components 8 are adjusted, one end of the panel is pushed into the gap formed between the two vacuum scrapers 301 until the upper and lower surfaces of one end of the panel contact the two cleaning rollers 302 respectively. Then, the two rotating motors 801 are turned on to drive the two rotating shafts 806 to rotate the heat-conducting rollers 803. Since the two rotating shafts 806 are respectively provided with the same transmission belt 10 on the outer wall of the corresponding hollow rotating shafts 306, the two hollow rotating shafts 306 also rotate as the two rotating shafts 806 continue to rotate. Since the two sliding sleeves 309 are respectively slidably connected to the inside of the corresponding hollow rotating shafts 306, and the cleaning rollers 302 are inserted into the two sliding sleeves 309 through two embedding blocks 310, the cleaning rollers 302 and the heat-conducting rollers 803 finally rotate synchronously, so that the panel is actively transported to the inside of the two hot press plates through the upper and lower cleaning rollers 302 and the upper and lower heat-conducting rollers 803. During this process, two vacuum scrapers 301 scrape away hard impurities adhering to the upper and lower surfaces of the board. As the two hollow rotating shafts 306 continue to rotate, the two actuating rings 307 intermittently and continuously press against the corresponding arc-shaped blocks 313. The two arc-shaped blocks 313 then intermittently drive the corresponding sliding blocks 314 to move inside the corresponding slide frame 312. Combined with the resetting action of the two telescopic springs 315, the two vacuum scrapers 301 vibrate at high frequency to efficiently scrape away impurities with strong adhesion. The dust raised on the surface of the board is drawn into the dust storage bin 3 by the two activated vacuum pumps 304 through the two vacuum pipes 305. 03 The internal parts await subsequent recycling. When the board passes through the two cleaning rollers 302, the cleaning rollers 302 further clean the dust on the surface of the board. When the cleaning effect of the cleaning roller 302 is not good and needs to be replaced, it is only necessary to push one end of the cleaning roller 302 to make the cleaning roller 302 squeeze the sliding sleeve 309 in contact with the other end. This causes the sliding sleeve 309 at the other end to overcome the corresponding locking spring 308 and move along the corresponding hollow rotating shaft 306. This causes one end of the cleaning roller 302 to move away from the interior of the adjacent sliding sleeve 309, and then the cleaning roller 302 can be removed. Then, the new cleaning roller 302 can be reinstalled on the board cleaning assembly 3 in the same way. When the sheet material passes through the two heat-conducting rollers 803, the working environment of the hot press body 1 is at a certain high temperature. Therefore, by turning on the two suction pumps 807, the high-temperature air in the working environment enters the interior of the two U-shaped tubes 804 through the two suction heads 805 and finally exits through the two exhaust heads 808. During the process of the high-temperature air flowing inside the two U-shaped tubes 804, the heat-conducting rollers 803 are continuously heated through the two U-shaped tubes 804. This achieves the preheating of the sheet material while the two heat-conducting rollers 803 are conveying it, thereby improving the efficiency and effect of the hot press body 1 on the sheet material.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A hot pressing device based on composite sheet processing, characterized in that, include: The base (4) is provided with a hot press body (1), and the hot press body (1) is provided with two lifting rails (2). Two lifting blocks (5) are respectively set on corresponding lifting rails (2), and support plates (6) are respectively set on the two lifting blocks (5); Two H-shaped frames (7) are respectively set on the corresponding support plates (6); Two panel cleaning components (3) are arranged opposite to each other on the H-shaped frame (7). Each of the two panel cleaning components (3) includes two hollow rotating shafts (306) and two main moving blocks (311). Two plate preheating components (8) are arranged opposite each other on the H-shaped frame (7). Each of the two plate preheating components (8) includes two rotating shafts (806) and two auxiliary moving blocks (802).

2. The hot pressing equipment based on composite sheet processing according to claim 1, characterized in that, The panel cleaning assembly (3) also includes: Two sliding sleeves (309) are provided, one end of which is slidably connected to the interior of one end of a corresponding hollow rotating shaft (306). The two hollow rotating shafts (306) are respectively connected to the interior of the corresponding main moving block (311) through bearings. Two sliding frames (312) are respectively disposed on one side of the corresponding main moving block (311), and the two main moving blocks (311) are respectively slidably connected to the interior of the corresponding H-shaped frame (7).

3. A hot pressing device based on composite sheet processing according to claim 2, characterized in that, The panel cleaning assembly (3) also includes: Two embedded blocks (310) are respectively embedded inside the other end of the corresponding sliding sleeve (309); Two actuating rings (307) are respectively sleeved on the outer wall of the other end of the corresponding hollow rotating shaft (306); Two locking springs (308) are respectively disposed inside the corresponding hollow rotating shaft (306). One end of each locking spring (308) is fixedly connected to one end of the corresponding sliding sleeve (309), and the other end of each locking spring (308) is fixedly connected to the inner wall of the corresponding hollow rotating shaft (306). Two sliding blocks (314) are slidably connected to the inside of the corresponding slide frame (312).

4. A hot pressing device based on composite sheet processing according to claim 3, characterized in that, The panel cleaning assembly (3) also includes: A cleaning roller (302) is fixedly connected to two embedded blocks (310) on opposite sides; Two arc-shaped blocks (313) are respectively disposed on the outer wall of the corresponding sliding block (314), and the two arc-shaped blocks (313) can respectively press and contact the corresponding actuating ring (307).

5. A hot pressing device based on composite sheet processing according to claim 4, characterized in that, The panel cleaning assembly (3) also includes: Two telescopic springs (315) are provided, one end of each of the two telescopic springs (315) is respectively provided at one end of the corresponding sliding block (314), and the other end of each of the two telescopic springs (315) is respectively fixedly connected to the inner wall of one end of the corresponding slide frame (312).

6. A hot pressing device based on composite sheet processing according to claim 5, characterized in that, The panel cleaning assembly (3) also includes: A vacuum cleaner scraper (301) is mounted on two sliding blocks (314), and a plurality of vacuum holes are equally spaced on the inclined surface of the vacuum cleaner scraper (301). Dust collection bin (303) is located on the upper side of the dust suction scraper (301).

7. A hot pressing device based on composite sheet processing according to claim 6, characterized in that, The panel cleaning assembly (3) also includes: Two suction pipes (305) are provided, one end of which is inserted into the two ends of the dust collection bin (303), and the other end of which is inserted into the two ends of the suction scraper (301). Two vacuum pumps (304) are respectively installed on the outer wall of the corresponding vacuum pipe (305).

8. A hot pressing device based on composite sheet processing according to claim 1, characterized in that, The plate preheating assembly (8) also includes: A heat-conducting roller (803) is fixedly connected to the opposite side of two rotating shafts (806), and the two rotating shafts (806) are respectively connected to the interior of the corresponding auxiliary moving block (802) through bearings; Two rotary motors (801) are respectively mounted on corresponding auxiliary moving blocks (802). The two auxiliary moving blocks (802) are slidably connected inside the corresponding H-shaped frame (7). The driving ends of the two rotary motors (801) are respectively connected to one end of the corresponding rotating shaft (806) through couplings.

9. A hot pressing device based on composite sheet processing according to claim 8, characterized in that, The plate preheating assembly (8) also includes: Two U-shaped tubes (804) are arranged opposite each other inside the heat-conducting roller (803), with the air outlet and air inlet of the two U-shaped tubes (804) located outside the heat-conducting roller (803).

10. A hot pressing device based on composite sheet processing according to claim 9, characterized in that, The plate preheating assembly (8) also includes: Two suction heads (805) are respectively disposed on the outer wall of the air inlet end of the corresponding U-shaped tube (804); Two air outlets (808) are respectively disposed on the outer wall of the air outlet end of the corresponding U-shaped tube (804), and a suction pump (807) is also respectively disposed on the outer wall of the air outlet end of the two U-shaped tubes (804). Two drive belts (10) are respectively disposed on the outer walls of the corresponding hollow rotating shaft (306) and rotating shaft (806); Multiple adjustable telescopic rods (9) are respectively set on the corresponding H-shaped frame (7), and the telescopic ends of the multiple adjustable telescopic rods (9) are respectively fixedly connected to the corresponding main moving block (311) and the corresponding auxiliary moving block (802).

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