Hot press for wood product processing and processing method thereof

Abstract

The invention relates to the technical field of wood product processing equipment, and discloses a wood product processing hot press which comprises a stand column, a sliding groove is formed in the outer surface of the stand column, a sliding block is slidably connected in the sliding groove, one end of the sliding block is fixedly connected with a storage table, lock catches are fixedly connected to the two sides of the storage table, chains are fixedly connected to the outer surfaces of the lock catches, and the chains are in meshed connection with chain wheels. A transmission rod is fixedly connected to the center of the chain wheel, a supporting plate is arranged at one end of the transmission rod, and a gear motor is installed on the outer surface of the supporting plate. Steam in the pressing plate is conveyed into the exhaust pipe by opening the electromagnetic valve, then the steam enters the spiral pipe through the gathering pipe, then the steam with waste heat in the spiral pipe exchanges heat with cold water, the steam is thoroughly cooled, and the cold water is conveyed into the steam generator again through the bent pipe after being heated to a certain temperature. And the thoroughly cooled gas is discharged from the bottom end of the spiral pipe, so that the energy consumption of the steam generator can be reduced by utilizing the waste heat of the steam.

Description

Technical Field

[0001] The invention relates to the technical field of wood product processing equipment, in particular to a hot press for wood product processing and a processing method thereof. Background Art

[0002] Wood products are increasingly used in people's daily life due to their beautiful appearance, close to nature, warm in winter and cool in summer. In the production and processing of wood products, cold pressing and hot pressing are often involved. Hot pressing requires the use of a hot press.

[0003] According to the search, Chinese patent literature, publication number: CN110171040B, discloses a hot press for wood plywood, which is provided with a limit block. When the limit block moves upward, the lifting block will also start to lift and lower. When lifting and lowering, the tooth mark groove will fit on the tooth mark of the rotating wheel, forcing it to start rotating. When the rotating wheel starts to rotate, the tooth mark will simultaneously drive the fixed block to start rotating so that it can fit into the fixed groove of the displacement block, making it impossible for the displacement block to continue to move, so that the force generated when the limit blocks on the anti-cracking plates of the two hot pressing plates are lifted and pressed against each other will not act on the wood. When the limit blocks of the anti-cracking plates of the two hot pressing plates are lifted and pressed against each other, the hot pressing plates cannot continue to extrude, thereby preventing the wood from cracking and breaking due to excessive extrusion force.

[0004] However, the above-mentioned wood hot presses and most hot presses on the market still rely on manual loading, which is not only inefficient, but also dangerous because the hot presses usually press multiple sheets of wood at a time, so the height is relatively high. Therefore, we need to make improvements. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a hot press machine for processing wood products and a processing method thereof, which has the advantages of utilizing the heat generated by steam to hot press wood and being able to automatically load materials before hot pressing, thus saving labor and improving efficiency, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot press for processing wood products, comprising a column, a slide groove is provided on the outer surface of the column, a slider is slidably connected in the slide groove, one end of the slider is fixedly connected to a storage table, both sides of the storage table are fixedly connected to lock buckles, the outer surface of the lock buckle is fixedly connected to a chain, the chain is meshed and connected to a sprocket, the center of the sprocket is fixedly connected to a transmission rod, a support plate is provided at one end of the transmission rod, a reduction motor is installed on the outer surface of the support plate, a straight groove is provided through the top of the storage table, a loading block is slidably connected in the straight groove, the bottom end of the loading block is fixedly connected to the connecting plate, and the connecting The screw rod is connected to the threaded connection in the plate, and the two sides of the storage table are fixedly connected to the ear plates, one of the ear plates is installed with a servo motor, one side of the column is fixedly connected to the positioning plate, the upper surface of the positioning plate is fixedly connected to the light rod, the outer surface of the light rod is slidably connected to the pressing plate, an intake pipe and a solenoid valve are installed on one side of the pressing plate, one end of the solenoid valve is connected to the exhaust pipe, the bottom end of the exhaust pipe is connected to the collecting pipe, the outer surface of the collecting pipe is fixedly connected to the spiral pipe, the spiral pipe is installed inside the water tank, one side of the water tank is fixedly connected to the circulation pump, and the other end of the water tank is fixedly connected to the elbow, and one end of the elbow is connected to the steam generator.

[0009] As a preferred technical solution of the present invention, the output shaft of the reduction motor is fixedly connected to a transmission rod, and two sides of the storage table are respectively fixedly connected to a sliding block.

[0010] As a preferred technical solution of the present invention, the output shaft of the servo motor is fixedly connected to the screw rod, and both ends of the connecting plate are fixedly connected to a loading block, and the loading block is in an inverted "L" shape.

[0011] As a preferred technical solution of the present invention, the bottom of the column is fixedly connected to the base, four groups of hydraulic cylinders are installed on the top of the base, and push plates are installed on the top of the four groups of hydraulic cylinders. There are several pressing plates, and the lower surface of the pressing plate located at the bottom contacts the push plate.

[0012] As a preferred technical solution of the present invention, ear blocks are fixedly connected to both sides of the pressing plate, the bottom of the ear blocks is fixedly connected to a support rod, and the bottom end of the support rod abuts against the positioning plate.

[0013] As a preferred technical solution of the present invention, the gas outlet end of the steam generator is fixedly connected to the gas inlet pipe, the gas inlet pipe is a high temperature resistant hose, and the pressing plate is hollow inside.

[0014] As a preferred technical solution of the present invention, the end of the circulation pump away from the water tank is connected to the water inlet valve, the bottom end of the spiral tube passes through the bottom of the water tank, and the collecting pipe is arranged inside the water tank.

[0015] As a preferred technical solution of the present invention, four columns are provided, wherein a bracket is fixedly connected between two columns, an electric push rod is installed on the bracket, and an output end of the electric push rod is fixedly connected to a push block.

[0016] As a preferred technical solution of the present invention, an electric control box is connected between the columns, and the electric control box is equipped with a wireless remote control.

[0017] The present invention also provides a processing method of a hot press for processing wood products, which is carried out according to the following steps:

[0018] S1. Place the plate to be hot-pressed on the storage table, and then start the reduction motor to cooperate with the transmission rod, chain, sprocket and lock to drive the storage table to rise;

[0019] S2, the storage table rises to be flush with one of the pressing plates and then stops, and the servo motor is started to cooperate with the screw rod and the connecting plate to drive the two loading blocks to move in the straight groove, and the loading blocks push the plate to be hot pressed into the upper surface of the pressing plate, and the above operation is repeated so that the plate to be hot pressed is placed on each pressing plate;

[0020] S3, by starting four groups of hydraulic cylinders to drive the push plate to rise, the push plate drives one of the pressing plates to rise, and finally the pressing plates can be stacked together under the guidance of the polished rod to apply pressure to the plate;

[0021] S4, starting the steam generator to generate steam and entering each air inlet pipe, and then the air inlet pipe transports the steam into the interior of the pressing plate, the pressing plate is kept under pressure for a period of time, and the generated heat is transferred to the plate to form it;

[0022] S5. By opening the solenoid valve, the cooled steam in the pressing plate enters the exhaust pipe, and then the exhaust pipe transports the gas containing waste heat to the spiral tube, and the circulating pump transports cold water to the water tank. The waste heat generated by the spiral tube heats the cold water, and the heated water enters the steam generator through the bent pipe. The thoroughly cooled steam is discharged from the bottom end of the spiral tube.

[0023] Compared with the prior art, the present invention provides a hot press for wood product processing and a processing method thereof, which has the following beneficial effects:

[0024] 1. The present invention places the plate to be hot-pressed on the storage table, starts the reduction motor to drive the transmission rod to rotate, and with the cooperation of the sprocket and the chain, can drive the lock to rise and fall, and then can drive the storage table to rise and fall, so that the storage table can be flush with the pressing plate, and by starting the servo motor to drive the screw rod to rotate, the screw rod drives the connecting plate to move forward, and the connecting plate then drives the loading block, and the loading block pushes the plate to be hot-pressed onto the upper surface of the pressing plate. The overall structure makes it possible to automatically place the plate on the pressing plate, avoiding traditional manual loading to improve efficiency while also reducing safety hazards.

[0025] 2. The present invention opens the solenoid valve to transport the steam in the pressed plate to the exhaust pipe, and then enters the spiral tube through the collecting pipe. Then the steam with waste heat in the spiral tube exchanges heat with cold water, so that the steam is completely cooled. After the cold water is heated to a certain temperature, it is transported to the steam generator again through the bent pipe. The completely cooled gas is discharged from the bottom end of the spiral tube. In this way, the waste heat of the steam can be used to reduce the energy consumption of the steam generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention from a first viewing angle;

[0027] Figure 2 The structure of the present invention Figure 1 A is a partial enlarged schematic diagram;

[0028] Figure 3 It is a schematic side view of the structure of the present invention;

[0029] Figure 4 It is a partial three-dimensional schematic diagram of the structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the back side of the structure of the present invention;

[0031] Figure 6 It is a three-dimensional schematic diagram of the structure of the present invention from a second viewing angle;

[0032] Figure 7 It is a cross-sectional schematic diagram of the structural water tank of the present invention.

[0033] Among them: 1. Column; 2. Slide; 3. Slider; 4. Storage table; 5. Lock; 6. Chain; 7. Sprocket; 8. Transmission rod; 9. Support plate; 10. Reducer motor; 11. Straight groove; 12. Loading block; 13. Connecting plate; 14. Screw rod; 15. Ear plate; 16. Servo motor; 17. Positioning plate; 18. Light rod; 19. Pressing plate; 20. Inlet pipe; 21. Solenoid valve; 22. Exhaust pipe; 23. Collection pipe; 24. Spiral pipe; 25. Water tank; 26. Circulation pump; 27. Bend pipe; 28. Steam generator; 29. ​​Hydraulic cylinder; 30. Push plate; 31. Ear block; 32. Support rod; 33. Bracket; 34. Electric push rod; 35. Push block; 36. Electric control box. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1-Figure 7 A hot press for processing wood products comprises a column 1, a slide groove 2 is provided on the outer surface of the column 1, a slider 3 is slidably connected in the slide groove 2, one end of the slider 3 is fixedly connected to a storage table 4, both sides of the storage table 4 are fixedly connected to lock buckles 5, the outer surface of the lock buckle 5 is fixedly connected to a chain 6, the chain 6 is meshed and connected to a sprocket 7, the center of the sprocket 7 is fixedly connected to a transmission rod 8, a support plate 9 is provided at one end of the transmission rod 8, a reduction motor 10 is installed on the outer surface of the support plate 9, a straight groove 11 is provided through the top of the storage table 4, a loading block 12 is slidably connected in the straight groove 11, the bottom end of the loading block 12 is fixedly connected to a connecting plate 13, the connecting plate 13 is threadedly connected to a screw rod 14, and both sides of the storage table 4 are fixed. The ear plates 15 are connected, and a servo motor 16 is installed on one of the ear plates 15. One side of the column 1 is fixedly connected to the positioning plate 17. The upper surface of the positioning plate 17 is fixedly connected to the light rod 18. The outer surface of the light rod 18 is slidably connected to the pressing plate 19. An intake pipe 20 and a solenoid valve 21 are installed on one side of the pressing plate 19. One end of the solenoid valve 21 is connected to the exhaust pipe 22. The bottom end of the exhaust pipe 22 is connected to the collecting pipe 23. The outer surface of the collecting pipe 23 is fixedly connected to the spiral tube 24. The spiral tube 24 is installed inside the water tank 25. One side of the water tank 25 is fixedly connected to the circulation pump 26, and the other end of the water tank 25 is fixedly connected to the elbow 27. One end of the elbow 27 is connected to the steam generator 28.

[0038] Specifically, the output shaft of the reduction motor 10 is fixedly connected to a transmission rod 8, and a slider 3 is fixedly connected to each side of the storage table 4. The advantage is that the wood to be hot-pressed is placed on the storage table 4, and then the reduction motor 10 is started to drive the transmission rod 8 to rotate, the transmission rod 8 drives the sprocket 7, the sprocket 7 drives the chain 6, the chain 6 drives the lock 5, and the lock 5 drives the storage table 4 to rise. When the storage table 4 rises to a position flush with the pressing plate 19, it stops, so that the plate to be hot-pressed can be transported to the vicinity of the pressing plate 19.

[0039] Specifically, the output shaft of the servo motor 16 is fixedly connected to the screw rod 14, and the two ends of the connecting plate 13 are fixedly connected to a loading block 12, and the loading block 12 is in an inverted "L" shape. The advantage is that when the position of the storage table 4 is flush with a certain pressing plate 19, the screw rod 14 is driven to rotate by starting the servo motor 16. Since the straight groove 11 guides and limits the loading block 12, the connecting plate 13 is driven forward under the drive of the screw rod 14, and the connecting plate 13 then drives the loading block 12. The loading block 12 pushes the plate to be hot-pressed into the upper surface of the pressing plate 19. The overall structure allows the plate to be automatically placed on the pressing plate 19, avoiding traditional manual loading to improve efficiency while also reducing safety hazards.

[0040] Specifically, the bottom of the column 1 is fixedly connected to the base, four groups of hydraulic cylinders 29 are installed on the top of the base, and push plates 30 are installed on the top of the four groups of hydraulic cylinders 29. There are several pressing plates 19, and the lower surface of the pressing plate 19 located at the bottom contacts the push plate 30. The advantage is that when the upper surfaces of all the pressing plates 19 are placed with plates, the push plate 30 can be driven to rise by starting the four groups of hydraulic cylinders 29, and the push plate 30 pushes the pressing plate 19 located at the bottom to rise. Under the guidance of the light rod 18, all the pressing plates 19 gradually move upward, and finally the pressing plates 19 and the plates are tightly pressed together.

[0041] Specifically, ear blocks 31 are fixedly connected to both sides of the press plate 19, the bottom of the ear blocks 31 are fixedly connected to the support rods 32, and the bottom ends of the support rods 32 abut against the positioning plate 17. The advantage is that the lengths of the support rods 32 are different, and the press plates 19 can be supported by the support rods 32 and the ear blocks 31 under normal conditions, so that there is a large distance between the press plates 19, which is convenient for loading.

[0042] Specifically, the outlet end of the steam generator 28 is fixedly connected to the air inlet pipe 20, the air inlet pipe 20 is a high temperature resistant hose, and the inside of the pressing plate 19 is hollow. The advantage is that the high temperature steam is generated by the steam generator 28, and the high temperature steam is transported to the inside of each pressing plate 19 through the air inlet pipe 20, and the pressing plate 19 generates high temperature through heat conduction, and the pressing plate 19 transfers high temperature to the plate, so that the plate receives enough heat to be shaped during the pressure holding period.

[0043] Specifically, one end of the circulation pump 26 away from the water tank 25 is connected to the water inlet valve, the bottom end of the spiral tube 24 passes through the bottom of the water tank 25 , and the collecting pipe 23 is arranged inside the water tank 25 . The advantage is that the water inlet valve is connected to the industrial water pipe. By opening the water inlet valve and then starting the circulation pump 26 to transport cold water into the water tank 25, when the water tank 25 is full of water during the first use, water will be transported to the steam generator 28 through the curved pipe 27. Once the steam generator 28 generates steam, the steam is transported into the pressing plate 19 through the air inlet pipe 20. After the pressing is completed, the steam in the pressing plate 19 is transported to the exhaust pipe 22 by opening the solenoid valve 21, and then enters the spiral tube 24 through the collecting pipe 23. Then, the steam with waste heat in the spiral tube 24 exchanges heat with the cold water, so that the steam is completely cooled, and the cold water is heated to a certain temperature and transported to the steam generator 28 again. The completely cooled gas is discharged from the bottom end of the spiral tube 24, so that the waste heat of the steam can be used to reduce the energy consumption of the steam generator 28.

[0044] Specifically, four columns 1 are provided, wherein a bracket 33 is fixedly connected between two columns 1, an electric push rod 34 is installed on the bracket 33, and an output end of the electric push rod 34 is fixedly connected to a push block 35. The advantage is that when the hot pressing is completed, the hydraulic cylinder 29 is reset, so that each pressing plate 19 is also reset, and at this time, the storage table 4 is raised to be flush with the pressing plate 19 at the highest position, and then the electric push rod 34 near the pressing plate 19 is started to drive the push block 35, and the push block 35 pushes the hot pressed plate to move to the storage table 4, and such repeated operations can move all the plates on all the pressing plates 19 to the storage table 4, completing automatic unloading.

[0045] Specifically, an electric control box 36 is connected between the columns 1, and the electric control box 36 is equipped with a wireless remote controller. The advantage is that by setting up an electric control box 36 to control the components such as the reduction motor 10, the servo motor 16, the solenoid valve 21, the steam generator 28, the circulation pump 26 and the electric push rod 34, it is convenient for workers to coordinate the operation of various devices, and the electric control box 36 is equipped with a wireless remote controller, which is convenient for remote operation.

[0046] A processing method of a hot press for processing wood products is carried out according to the following steps:

[0047] S1, placing the plate to be hot pressed on the storage table 4, and then starting the reduction motor 10 to cooperate with the transmission rod 8, chain 6, sprocket 7 and lock 5 to drive the storage table 4 to rise;

[0048] S2, the storage table 4 rises to be flush with one of the pressing plates 19 and then stops, and the servo motor 16 is started to cooperate with the screw rod 14 and the connecting plate 13 to drive the two loading blocks 12 to move in the straight groove 11, and the loading blocks 12 push the sheet to be hot pressed into the upper surface of the pressing plate 19, and the above operation is repeated so that the sheet to be hot pressed is placed on each pressing plate 19;

[0049] S3, by starting the four groups of hydraulic cylinders 29 to drive the push plate 30 to rise, the push plate 30 drives one of the pressing plates 19 to rise, and finally the pressing plates 19 can be stacked together under the guidance of the polished rod 18 to apply pressure to the plate;

[0050] S4, starting the steam generator 28 to generate steam and entering each air inlet pipe 20, and then the air inlet pipe 20 transports the steam into the inside of the pressing plate 19, the pressing plate 19 maintains pressure for a period of time, and the generated heat is transferred to the plate to form it;

[0051] S5. By opening the solenoid valve 21, the cooled steam in the pressing plate 19 enters the exhaust pipe 22. Then the exhaust pipe 22 transports the gas containing residual heat to the spiral tube 24. The circulating pump 26 transports cold water to the water tank 25. The residual heat generated by the spiral tube 24 heats the cold water. The heated water enters the steam generator 28 through the curved pipe 27. The thoroughly cooled steam is discharged from the bottom end of the spiral tube 24.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot press for processing wood products, comprising a column (1), characterized in that: The outer surface of the column (1) is provided with a slide groove (2), a slider (3) is slidably connected in the slide groove (2), one end of the slider (3) is fixedly connected to the storage platform (4), the two sides of the storage platform (4) are fixedly connected to the lock buckle (5), the outer surface of the lock buckle (5) is fixedly connected to the chain (6), the chain (6) is meshed and connected to the sprocket (7), the center of the sprocket (7) is fixedly connected to the transmission rod (8), one end of the transmission rod (8) is provided with a support plate (9), the outer surface of the support plate (9) is installed with a reduction motor (10), a straight groove (11) is provided through the top of the storage platform (4), a loading block (12) is slidably connected in the straight groove (11), the bottom end of the loading block (12) is fixedly connected to the connecting plate (13), the connecting plate (13) is internally threaded and connected to the screw rod (14), the two sides of the storage platform (4) are fixedly connected to the ear plate (1 5), a servo motor (16) is installed on one of the ear plates (15), one side of the column (1) is fixedly connected to a positioning plate (17), the upper surface of the positioning plate (17) is fixedly connected to a light rod (18), the outer surface of the light rod (18) is slidably connected to a pressing plate (19), an intake pipe (20) and a solenoid valve (21) are installed on one side of the pressing plate (19), one end of the solenoid valve (21) is connected to an exhaust pipe (22), the bottom end of the exhaust pipe (22) is connected to a collecting pipe (23), the outer surface of the collecting pipe (23) is fixedly connected to a spiral tube (24), the spiral tube (24) is installed inside a water tank (25), one side of the water tank (25) is fixedly connected to a circulation pump (26), and the other end of the water tank (25) is fixedly connected to a bend pipe (27), one end of the bend pipe (27) is connected to a steam generator (28).

2. A hot press for processing wood products according to claim 1, characterized in that: The output shaft of the reduction motor (10) is fixedly connected to a transmission rod (8), and two sides of the storage platform (4) are respectively fixedly connected to a sliding block (3).

3. A hot press for processing wood products according to claim 1, characterized in that: The output shaft of the servo motor (16) is fixedly connected to the screw rod (14), and the two ends of the connecting plate (13) are respectively fixedly connected to a loading block (12), and the loading block (12) is in an inverted "L" shape.

4. A hot press for processing wood products according to claim 1, characterized in that: The bottom of the column (1) is fixedly connected to the base, and four groups of hydraulic cylinders (29) are installed on the top of the base. Push plates (30) are installed on the tops of the four groups of hydraulic cylinders (29). There are several pressing plates (19), and the lower surface of the pressing plate (19) located at the bottom contacts the push plate (30).

5. A hot press for processing wood products according to claim 1, characterized in that: Ear blocks (31) are fixedly connected to both sides of the pressing plate (19), the bottom of the ear blocks (31) is fixedly connected to a support rod (32), and the bottom end of the support rod (32) abuts against the positioning plate (17).

6. A hot press for processing wood products according to claim 1, characterized in that: The gas outlet end of the steam generator (28) is fixedly connected to the gas inlet pipe (20), the gas inlet pipe (20) is a high temperature resistant hose, and the interior of the pressing plate (19) is hollow.

7. A hot press for processing wood products according to claim 1, characterized in that: One end of the circulation pump (26) away from the water tank (25) is connected to a water inlet valve, the bottom end of the spiral tube (24) passes through the bottom of the water tank (25), and the collecting pipe (23) is arranged inside the water tank (25).

8. A hot press for processing wood products according to claim 1, characterized in that: Four upright posts (1) are provided, wherein a bracket (33) is fixedly connected between two upright posts (1), an electric push rod (34) is installed on the bracket (33), and the output end of the electric push rod (34) is fixedly connected to a push block (35).

9. A hot press for processing wood products according to claim 1, characterized in that: An electric control box (36) is connected between the uprights (1), and the electric control box (36) is equipped with a wireless remote controller.

10. A processing method of a hot press for processing wood products, using the hot press for processing wood products according to any one of claims 1 to 9, characterized in that: Proceed as follows: S1, placing the plate to be hot pressed on the storage platform (4), then starting the reduction motor (10) to cooperate with the transmission rod (8), chain (6), sprocket (7) and lock (5) to drive the storage platform (4) to rise; S2, the storage table (4) rises until it is flush with one of the pressing plates (19) and then stops, and the servo motor (16) is started to cooperate with the screw rod (14) and the connecting plate (13) to drive the two loading blocks (12) to move in the straight groove (11), and the loading blocks (12) push the plate to be hot-pressed into the upper surface of the pressing plate (19), and the above operation is repeated so that the plate to be hot-pressed is placed on each pressing plate (19); S3, by starting four groups of hydraulic cylinders (29) to drive the push plate (30) to rise, the push plate (30) drives one of the pressing plates (19) to rise, and finally the pressing plates (19) can be stacked together under the guidance of the polished rod (18) to apply pressure to the plate; S4, starting the steam generator (28) to generate steam which enters each air inlet pipe (20), and then the air inlet pipe (20) transports the steam into the interior of the pressing plate (19), the pressing plate (19) is pressurized for a period of time, and the generated heat is transferred to the plate to form it; S5. The solenoid valve (21) is opened to allow the steam cooled in the pressing plate (19) to enter the exhaust pipe (22). The exhaust pipe (22) then transports the gas containing the residual heat to the spiral tube (24). The circulating pump (26) transports cold water to the water tank (25). The residual heat generated by the spiral tube (24) heats the cold water. The heated water enters the steam generator (28) through the curved tube (27). The steam that has been completely cooled is discharged from the bottom end of the spiral tube (24).

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