Hot-pressing and drying treatment device for composite board

Abstract

The invention discloses a hot-pressing drying treatment device for a composite board, and relates to the technical field of composite board processing, the hot-pressing drying treatment device comprises a device main body, a pressing plate and a heating plate, an air heater is installed in the device main body, an air inlet is formed in one end of the air heater, an air outlet pipeline is installed at the air outlet end of the air heater, and multiple sets of heating pipelines are installed in the heating plate. The multiple sets of heating pipelines are connected through connecting pipelines, and an air supply pipe is movably installed in the air outlet pipeline. By arranging the hot air pipelines, the connecting pipelines, the air supply pipes and the hot air blowers, the air supply pipes displace in stages, one ends of the air supply pipes move into the adjacent connecting pipelines in stages, the other ends of the air supply pipes displace into the air outlet pipelines, the multiple connecting pipelines are closed in sequence, and hot air conveying of the multiple connecting pipelines is stopped in sequence; the multiple sets of heating pipelines are cooled from inside to outside, damage caused by continuous heating of the center area of the composite board is avoided, and the production effect of the composite board is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of composite board processing, in particular to a hot-pressing and drying treatment device for composite boards. BACKGROUND

[0002] The hot-pressing and drying treatment device for composite boards is a device for achieving the required physical properties and quality standards of composite boards through heating and pressing. The core is to evaporate the water in the board and cure the adhesive through heating, and to ensure the compactness of the board structure and the firmness of the interlayer bonding through pressing. Auxiliary systems such as ventilation, vacuum, and transmission are used to improve efficiency and quality.

[0003] The hot-pressing and drying treatment device mainly consists of a heating system, a pressure system, and a control system. The heating system usually uses electric heating or oil heating to heat the press plate from room temperature to a specified temperature within a certain time and maintain temperature accuracy. The pressure system consists of a hydraulic station and an oil cylinder, which moves the piston through hydraulic oil to apply pressure to the hot press plate and achieve pressing of the composite board. The control system adjusts and controls temperature, time, pressure, and other parameters through the control panel to ensure safety and stability of the work.

[0004] In the prior art, during the heating and drying process of the composite board by the electric heating plate, the heat of the electric heating plate is conducted inward through the surface of the board. The base material and adhesive of the composite board have a clear heat resistance threshold. When the central moisture is basically discharged, the thermal conductivity will decrease, and the heat will easily accumulate in the central area, causing the temperature to continue to rise. If the temperature exceeds the heat resistance threshold, the cellulose and hemicellulose of the wooden base material will pyrolyze, the central area of the composite board will become brittle and discolored, and the adhesive will decompose due to high temperature, causing the molecular chain to break and reducing the interlayer bonding strength. Even delamination occurs, affecting the production effect of the composite board. SUMMARY

[0005] Therefore, the present application aims to provide a hot-pressing and drying treatment device for composite boards to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a hot-pressing and drying treatment device for composite boards, comprising a device main body, a press plate, and a heating plate. The press plate is movably installed inside the device main body, and the heating plate is installed inside the device main body and arranged opposite to the press plate. A hot air blower is installed inside the device main body. One end of the hot air blower is provided with an air inlet, and the outlet end of the hot air blower is provided with an air outlet pipeline. A plurality of heating pipelines are installed inside the heating plate, and the plurality of heating pipelines are connected by connecting pipelines. A supply air pipe is movably installed inside the air outlet pipeline and movably connected to the plurality of heating pipelines and the plurality of connecting pipelines. A plurality of groups of sealing plates are movably installed at two ends of the connecting pipes, and the sealing plates are movably connected with the air supply pipes.

[0007] By adopting the above technical scheme, the problem of continuous heating damage to the center area of the composite board is solved.

[0008] The device body is internally provided with a hydraulic pump, two groups of hydraulic cylinders, and two groups of hydraulic columns movably installed in the hydraulic cylinders and connected with the pressing plates at one end.

[0009] Preferably, after the hydraulic pump is started, the hydraulic pump introduces hydraulic oil into the two groups of hydraulic cylinders through the two groups of hydraulic pipes, and the two groups of hydraulic columns are moved out of the two groups of hydraulic cylinders, thereby pushing the pressing plates to move upward.

[0010] The heating pipes are arranged in a "mouth" shape, and the heating pipes are of different sizes.

[0011] Preferably, the arrangement of the heating pipes enables the heating pipes to cool from the inside to the outside when cooling.

[0012] The air outlet pipe is internally provided with two groups of supporting blocks, two groups of drive shafts movably installed in the supporting blocks, and a toothed synchronous belt connected with the drive shafts extending to one end of the air outlet pipe.

[0013] Preferably, the drive motor is started to drive one group of drive shafts to rotate, and the two groups of drive shafts are connected through the toothed synchronous belt, so that the two groups of drive shafts rotate synchronously.

[0014] The air supply pipe is internally provided with two groups of supporting plates arranged alternately, and the inner walls of the supporting plates are threadedly connected with the outer walls of the two groups of drive shafts.

[0015] As preferably, the two groups of driving shafts rotate synchronously, the outer walls of the two groups of driving shafts are respectively connected with the inner walls of the two groups of supporting plates through threads, so that the two groups of supporting plates displace, thereby driving the air supply pipe to displace towards the inside of the air outlet pipe, and further driving the toothed plate to displace.

[0016] The application is further provided that the upper ends of the plurality of heating pipes are movably installed with driving shafts, the plurality of driving shafts are respectively extended into the inside of the plurality of heating pipes and are installed with driving gears at one end, and the plurality of driving gears are sequentially connected with the toothed plate.

[0017] As preferably, the toothed plate displaces, driving the driving gear to rotate, thereby driving the driving shaft to rotate.

[0018] The application is further provided that the upper ends of the plurality of heating pipes are movably installed with driving shafts, the plurality of driving shafts are respectively extended into the inside of the plurality of heating pipes and are installed with driving gears at one end, and the plurality of driving gears are sequentially connected with the toothed plate.

[0019] As preferably, one group of driving shafts rotates, one group of driving shafts and one group of driving shafts are connected through the toothed synchronous belt, one group of driving shafts rotates, and the plurality of driving shafts are respectively connected through the plurality of toothed synchronous belts, the plurality of driving shafts rotate, the outer walls of the plurality of driving shafts are respectively connected with the inner walls of the plurality of sealing plates through threads, and the two groups of sealing plates displace.

[0020] The application is further provided that the heating plate is installed with an air outlet pipe, the air outlet pipe is connected with the plurality of heating pipes, the air outlet pipe is symmetrically provided with a plurality of air outlets, the air outlet pipe is provided with a plurality of one-way valves, the device body is provided with a first branch pipe, one end of the first branch pipe is connected with one end of the air outlet pipe through an electromagnetic valve, and the other end of the first branch pipe is connected with the air inlet end of the hot air machine.

[0021] As preferably, the one-way valve is provided, avoiding the airflow in the heating pipe at the outer end to enter the inside of the heating pipe through the air outlet pipe, and after the electromagnetic valve is opened, the airflow in the air outlet pipe enters the inside of the first branch pipe.

[0022] The application is further provided that the inner wall of the device body is provided with an air suction plate, the air suction plate is installed with air suction pipes at both ends, the air inlet end of the hot air machine is installed with a second branch pipe, and one end of the second branch pipe is connected with the two air suction pipes.

[0023] As preferably, after the hot air machine is started, one end of the second branch pipe is connected with the air inlet end of one end of the hot air machine, so that the second branch pipe generates negative pressure, the other end of the second branch pipe is connected with the two air suction pipes, and the two air suction pipes are respectively connected with the two ends of the air suction plate, so that the air suction plate generates suction force.

[0024] The present invention is further configured such that a control panel is installed on the outer wall of the main body of the device, and the control panel is electrically connected to the hydraulic pump, the hot air blower, the drive motor and the solenoid valve.

[0025] Preferably, the operator starts the hydraulic pump, hot air blower, drive motor and solenoid valve respectively through the control panel.

[0026] In summary, the present invention has the following main beneficial effects: This invention solves the problem of continuous heating and damage to the central area of ​​composite panels by incorporating hot air ducts, connecting pipes, air supply pipes, and a hot air blower. During the hot pressing and drying process of the composite panels, the air supply pipes undergo phased displacement. One end of the air supply pipe moves in stages into the interior of an adjacent set of connecting pipes, while the other end moves into the interior of the outlet pipe. Multiple sets of connecting pipes are closed sequentially, and the hot air delivery is stopped sequentially. This allows multiple sets of heating pipes to cool from the inside out, avoiding damage caused by continuous heating in the central area of ​​the composite panels and improving the production efficiency of the composite panels.

[0027] This invention features an air suction plate. After the hot air blower is started, one end of the second branch pipe is connected to the air inlet of the hot air blower, creating negative pressure inside the second branch pipe. The other end of the second branch pipe is connected to two sets of suction pipes, which are respectively connected to both ends of the air suction plate. Thus, the air suction plate generates suction. When the composite board is hot-pressed and dried, the air suction plate absorbs the moisture discharged from the four ends of the composite board, preventing the moisture from flowing back and adhering to the outer wall of the composite board, thereby improving the hot-pressing and drying effect of the composite board. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main body of the device in this invention; Figure 2 This is a schematic diagram of the air intake plate in this invention; Figure 3 This is a schematic diagram of the hot air blower in this invention; Figure 4 This is a schematic diagram of the internal structure of the main body of the device in this invention; Figure 5 This is a schematic diagram of the hydraulic pump in this invention; Figure 6 This is a schematic diagram of the heating plate in this invention; Figure 7 This is a schematic diagram of the internal structure of the heating plate in this invention; Figure 8 This is a bottom view of the internal structure of the heating plate in this invention; Figure 9 This is a side sectional view of the air outlet duct in this invention; Figure 10 for Figure 9 Enlarged view of point A in the image; Figure 11 is an enlarged view of B in Figure 9 Figure 12 is a cross-sectional view of the heating pipe in the present application; Figure 13 is an exploded view of the heating pipe in the present application; Figure 14 is an enlarged view of C in Figure 13 Figure 15 is a schematic view of the air supply pipe connected with the multiple groups of heating pipes and the multiple groups of connecting pipes in the present application; Figure 16 is an enlarged view of D in Figure 15

[0029] BRIEF DESCRIPTION OF DRAWINGS 1, device main body; 2, control panel; 3, hydraulic pump; 4, hydraulic pipe; 5, hydraulic cylinder; 6, hydraulic column; 7, pressing plate; 8, heating plate; 9, hot air machine; 10, air inlet; 11, air outlet pipe; 12, supporting block; 13, driving motor; 14, driving shaft; 15, air supply pipe; 16, air supply port; 17, supporting plate; 18, reserved groove; 19, toothed plate; 20, heating pipe; 21, connecting pipe; 22, transmission shaft; 23, transmission gear; 24, linkage shaft; 25, sealing plate; 26, air outlet pipe; 27, air outlet port; 28, one-way valve; 29, first branch pipe; 30, electromagnetic valve; 31, air suction plate; 32, air suction pipe; 33, second branch pipe; 34, inlet port. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0031] The embodiments of the present application will be described below according to the overall structure of the present application.

[0032] A hot-pressing drying treatment device for composite boards, please refer to Figure 1 - Figure 16 , comprising a device main body 1, a pressing plate 7 and a heating plate 8, the pressing plate 7 is movably installed in the device main body 1, the heating plate 8 is installed in the device main body 1, and the heating plate 8 is arranged opposite to the pressing plate 7; ​​​The device body 1 is internally provided with a hot air blower 9, one end of the hot air blower 9 is provided with an air inlet 10, the air outlet end of the hot air blower 9 is provided with an air outlet pipeline 11, a plurality of heating pipelines 20 are internally provided in the heating plate 8, the plurality of heating pipelines are connected through the connecting pipelines 21, the air supply pipe 15 is movably arranged in the air outlet pipeline 11, and the air supply pipe 15 is movably connected with the plurality of heating pipelines 20 and the plurality of connecting pipelines 21, the air supply pipe 15 is in phased displacement, one end of the air supply pipe 15 is in phased displacement into the adjacent connecting pipeline 21, the other end of the air supply pipe 15 is displaced into the air outlet pipeline 11, the plurality of connecting pipelines 21 are sequentially closed, and the plurality of connecting pipelines 21 are sequentially stopped to heat air supply, so that the plurality of heating pipelines 20 are cooled from inside to outside. The two ends of the plurality of connecting pipelines 21 are movably provided with sealing plates 25, and the plurality of sealing plates 25 are movably connected with the air supply pipe 15.

[0033] Please refer to Figure 1 - Figure 5 The device body 1 is internally provided with a hydraulic pump 3, two groups of hydraulic cylinders 5 are internally provided in the device body 1, the two groups of hydraulic cylinders 5 are movably provided with hydraulic columns 6, and one end of the two groups of hydraulic columns 6 is connected with the pressing plate 7, the output end of the hydraulic pump 3 is provided with two groups of hydraulic pipes 4, and the two groups of hydraulic pipes 4 are connected with the two groups of hydraulic cylinders 5, respectively, after the hydraulic pump 3 is started, the hydraulic pump 3 guides the hydraulic oil into the two groups of hydraulic cylinders 5 through the two groups of hydraulic pipes 4, and the two groups of hydraulic columns 6 are respectively moved out of the two groups of hydraulic cylinders 5, so as to drive the pressing plate 7 to move upwards.

[0034] Please refer to Figure 7 - Figure 13 The plurality of heating pipelines 20 are arranged in the shape of "mouth", and the plurality of heating pipelines 20 are different in size, the plurality of heating pipelines 20 are arranged in the shape of "back", and the arrangement of the plurality of heating pipelines 20 enables the plurality of heating pipelines 20 to be cooled from inside to outside.

[0035] Please refer to Figure 4 - Figure 9 Two groups of supporting blocks 12 are alternately arranged in the air outlet pipeline 11, the two groups of supporting blocks 12 are movably provided with driving shafts 14, and the two groups of driving shafts 14 are connected with the toothed synchronous belts arranged at one end of the outer wall of the air outlet pipeline 11, a driving motor 13 is internally provided in the device body 1, and one group of driving shafts 14 is connected with the output end of the driving motor 13, the driving motor 13 is started to drive one group of driving shafts 14 to rotate, the two groups of driving shafts 14 are connected through the toothed synchronous belts, so the two groups of driving shafts 14 rotate synchronously, and the arrangement of the two groups of supporting blocks 12 improves the stability of the two groups of driving shafts 14.

[0036] Please refer to Figure 4 - Figure 11The inside of the air supply pipe 15 is provided with two groups of supporting plates 17 which are staggered, the inner walls of the two groups of supporting plates 17 are respectively threadedly connected with the outer walls of the two groups of driving shafts 14, a reserved groove 18 is formed in the upper end of the air supply pipe 15, a gear plate 19 is mounted at one end of the reserved groove 18, the two groups of driving shafts 14 rotate synchronously, the outer walls of the two groups of driving shafts 14 are respectively threadedly connected with the inner walls of the two groups of supporting plates 17, so that the two groups of supporting plates 17 are displaced, thereby driving the air supply pipe 15 to be displaced into the inside of the air outlet pipe 11, and further driving the gear plate 19 to be displaced.

[0037] Please refer to Figure 7 - Figure 16 The upper ends of the groups of heating pipe 20 are movably provided with driving shafts 22, the groups of driving shafts 22 respectively extend into the inside of the groups of heating pipe 20, and the ends of the groups of driving shafts 22 are respectively provided with driving gears 23, and the groups of driving gears 23 are sequentially meshed and connected with the gear plate 19, the gear plate 19 is displaced, driving the driving gears 23 to rotate, thereby driving the driving shafts 22 to rotate.

[0038] Please refer to Figure 7 - Figure 16 The upper ends of the groups of heating pipe 20 are movably provided with driving shafts 22, the groups of driving shafts 22 respectively extend into the inside of the groups of heating pipe 20, and the ends of the groups of driving shafts 22 are respectively provided with driving gears 23, and the groups of driving gears 23 are sequentially meshed and connected with the gear plate 19, the gear plate 19 is displaced, driving the driving gears 23 to rotate, thereby driving the driving shafts 22 to rotate.

[0039] Please refer to Figure 12 - Figure 16 The inside of the heating plate 8 is provided with an air outlet pipe 26 which is connected with the groups of heating pipe 20, the air outlet pipe 26 is symmetrically provided with groups of air outlets 27, the air outlet pipe 26 is provided with groups of one-way valves 28, the inside of the device main body 1 is provided with a first branch pipe 29, one end of the first branch pipe 29 is connected with one end of the air outlet pipe 26 and is provided with an electromagnetic valve 30, and the other end of the first branch pipe 29 is connected with the air inlet end of the hot air machine 9, the arrangement of the one-way valves 28 avoids the gas flow in the heating pipe 20 at the outer end from entering the inside of the heating pipe 20 through the air outlet pipe 26, and after the electromagnetic valve 30 is opened, the gas flow in the air outlet pipe 26 enters the inside of the first branch pipe 29.

[0040] Please refer to Figure 2 - Figure 4The inner wall of the device body 1 is provided with an air suction plate 31, both ends of the air suction plate 31 are provided with air suction pipes 32, the air inlet end of the hot air blower 9 is provided with a second branch pipe 33, one end of the second branch pipe 33 is connected with the two groups of air suction pipes 32, after the hot air blower 9 is started, one end of the second branch pipe 33 is connected with the air inlet end of one end of the hot air blower 9, so that negative pressure is generated in the second branch pipe 33, the other end of the second branch pipe 33 is connected with the two groups of air suction pipes 32, and the two groups of air suction pipes 32 are respectively connected with both ends of the air suction plate 31, so that the air suction plate 31 generates suction force.

[0041] Please refer to Figure 1 - Figure 4 The outer wall of the device body 1 is provided with a control panel 2, and the control panel 2 is electrically connected with the hydraulic pump 3, the hot air blower 9, the driving motor 13 and the electromagnetic valve 30, and the staff starts the hydraulic pump 3, the hot air blower 9, the driving motor 13 and the electromagnetic valve 30 through the control panel 2.

[0042] The working principle of the present application is as follows: when the staff uses the device to perform hot pressing operation on the composite board, the staff places the composite board on the upper end of the pressing plate 7, and then the staff starts the hydraulic pump 3 and the hot air blower 9 through the control panel 2; When the hydraulic pump 3 is started, the hydraulic pump 3 introduces hydraulic oil into the two groups of hydraulic cylinders 5 through the two groups of hydraulic pipes 4, and the two groups of hydraulic columns 6 are respectively moved out of the two groups of hydraulic cylinders 5, so as to push the pressing plate 7 to move upward, and then drive the composite board to move upward; When the hot air blower 9 is started, after the airflow enters the hot air blower 9 through the air inlet 10, the hot air blower 9 increases the temperature of the airflow, and then the airflow enters the air outlet pipe 11, and then the airflow enters the air supply pipe 15 through the air outlet pipe 11, and then the airflow is respectively conducted into the plurality of heating pipes 20 through the air supply pipe 15 and the plurality of air supply openings, and then the airflow enters the air outlet pipe 26 through the plurality of air outlets 27, but the electromagnetic valve at the connection end of the air outlet pipe 26 and the first branch pipe 29 is in a closed state, so the airflow is not lost, and the hot air in the plurality of heating pipes 20 heats the plurality of heating pipes 20, so that the temperature of the heating plate 8 is increased, and the pressing plate 7 and the heating plate 8 cooperate to perform hot pressing and drying operation on the composite board, and the electromagnetic valve 30 is opened and then closed every certain time, so that the hot air in the plurality of heating pipes 20 is replaced, and the heat of the plurality of heating pipes 20 is maintained; When the hot air blower 9 is started, one end of the second branch pipe 33 is connected with the air inlet end of one end of the hot air blower 9, so that negative pressure is generated in the second branch pipe 33, the other end of the second branch pipe 33 is connected with the two groups of air suction pipes 32, and the two groups of air suction pipes 32 are respectively connected with both ends of the air suction plate 31, so that the air suction plate 31 generates suction force, and when the composite board is subjected to hot pressing and drying operation, the air suction plate 31 absorbs the water vapor discharged from the four ends of the composite board, so as to avoid the water vapor from being attached to the outer wall of the composite board after flowing back, and the hot pressing and drying effect of the composite board is improved. When the composite board is hot-pressed and dried for a certain period of time, the driving motor 13 is started to drive a set of driving shafts 14 to rotate, and the two sets of driving shafts 14 are connected by a toothed synchronous belt, so that the two sets of driving shafts 14 rotate synchronously. The outer walls of the two sets of driving shafts 14 are respectively threadedly connected with the inner walls of the two sets of supporting plates 17, so that the two sets of supporting plates 17 are displaced, thereby driving the air supply pipe 15 to displace into the air outlet pipe 11, so that one end of the air outlet pipe 11 moves out of the inside of one set of connecting pipes 21, and one end of the air outlet pipe 11 moves into the inside of an adjacent set of connecting pipes 21, and the driving motor 13 is turned off. When the air outlet pipe 11 is displaced, the toothed plate 19 is displaced, and the toothed plate 19 is meshingly connected with a set of transmission gears 23 during movement. The set of transmission gears 23 rotates to drive a set of transmission shafts 22 to rotate. The set of transmission shafts 22 is connected by a toothed synchronous belt with a set of connecting shafts 24. The set of connecting shafts 24 rotates, and a plurality of sets of connecting shafts 24 are respectively connected by a plurality of sets of toothed synchronous belts. The plurality of sets of connecting shafts 24 rotate, and the outer walls of the plurality of sets of connecting shafts 24 are respectively threadedly connected with the inner walls of a plurality of sets of sealing plates 25. The two sets of sealing plates 25 are displaced, and the two sets of sealing plates 25 close the two ends of a set of connecting pipes 21, so that a set of heating pipes 20 lacks continuous hot air transmission, and the temperature of the set of heating pipes 20 decreases. During the hot-pressing and drying process of the composite board, the driving motor 13 is started and closed in stages to drive the air supply pipe 15 to displace into the air outlet pipe 11. A plurality of sets of connecting pipes 21 are closed in turn, and a plurality of sets of connecting pipes 21 stop hot air delivery in turn, so that a plurality of sets of connecting pipes 21 are cooled from the inside out, avoiding damage to the central area of the composite board caused by continuous heating, and improving the production effect of the composite board.

[0043] Although embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, as long as they are within the scope of the present application.

Claims

1. A hot-press drying device for composite board, comprising a device body (1), a pressing plate (7) and a heating plate (8), characterized in that: The device body (1) is internally movably mounted with a pressing plate (7), the device body (1) is internally mounted with a heating plate (8), and the heating plate (8) is oppositely arranged with the pressing plate (7); The device body (1) is internally mounted with a hot air blower (9), one end of the hot air blower (9) is provided with an air inlet (10), the air outlet end of the hot air blower (9) is mounted with an air outlet pipeline (11), the heating plate (8) is internally mounted with a plurality of heating pipelines (20), a plurality of the heating pipelines are connected with the connecting pipelines (21) arranged therebetween, the air outlet pipeline (11) is movably mounted with an air supply pipe (15), and the air supply pipe (15) is movably connected with the plurality of heating pipelines (20) and the plurality of connecting pipelines (21). Both ends of the plurality of connecting pipelines (21) are movably mounted with sealing plates (25), and the plurality of sealing plates (25) are movably connected with the air supply pipe (15), and the outer wall of the air supply pipe (15) is symmetrically provided with a plurality of air supply openings (16).

2. The hot-press drying treatment device for composite board according to claim 1, characterized in that: The device body (1) is internally mounted with a hydraulic pump (3), the device body (1) is internally mounted with two groups of hydraulic cylinders (5), both of which are movably mounted with hydraulic columns (6) inside, and one end of the two groups of hydraulic columns (6) is connected with the pressing plate (7), and the output end of the hydraulic pump (3) is provided with two groups of hydraulic pipes (4), and the two groups of hydraulic pipes (4) are respectively connected with the two groups of hydraulic cylinders (5).

3. The hot-press drying device for composite board according to claim 1, characterized in that: The plurality of heating pipelines (20) are arranged in a "mouth" shape, and the plurality of heating pipelines (20) are of different sizes, and the plurality of heating pipelines (20) are arranged in a "back" shape.

4. The hot-press drying device for composite board according to claim 2, characterized in that: The air outlet pipeline (11) is internally staggered mounted with two groups of supporting blocks (12), both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are movably mounted with drive shafts (14) inside, and both of which are 5. The hot-press drying device for composite board according to claim 4, characterized in that: ​ 6. The hot-press drying device for composite board according to claim 5, characterized in that: ​ 7. The hot-press drying device for composite board according to claim 6, characterized in that: ​ 8. The hot-press drying device for composite board according to claim 4, characterized in that: The heating plate (8) is internally provided with an air outlet pipe (26) connected with a plurality of groups of heating pipes (20), the air outlet pipe (26) is symmetrically provided with a plurality of groups of air outlets (27), the air outlet pipe (26) is provided with a plurality of groups of one-way valves (28), the device body (1) is internally provided with a first branch pipe (29), one end of the first branch pipe (29) is connected with one end of the air outlet pipe (26) and provided with an electromagnetic valve (30), and the other end of the first branch pipe (29) is connected with an air inlet end of the hot air fan (9).

9. The hot-press drying device for composite board according to claim 1, characterized in that: The device body (1) is internally provided with an air suction plate (31), the air suction plate (31) is provided with air suction pipes (32) at both ends, and the air inlet end of the hot air fan (9) is provided with a second branch pipe (33) connected with the two groups of air suction pipes (32).

10. The hot-press drying device for composite board according to claim 8, characterized in that: The device body (1) is externally provided with a control panel (2) electrically connected with the hydraulic pump (3), the hot air fan (9), the driving motor (13) and the electromagnetic valve (30).

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