Composite board preparation method using a vacuum press

Abstract

The present invention discloses a method for preparing a composite board using a vacuum press, which relates to the technical field of composite board production equipment. A vacuum press is used, including a vacuum mechanism. The vacuum mechanism is fixedly connected to an extrusion and composite mechanism. The extrusion and composite mechanism includes an exhaust pipe and a first spring. The exhaust pipe is fixedly communicated with the upper part of a vacuum chamber. The first spring is fixedly connected to the vacuum chamber and is also fixedly connected to a first connecting plate. The first connecting plate is fixedly connected to a second sealing gasket, and the second sealing gasket is in close fit with a first sealing gasket. In the present invention, the boards to be pressed are placed on the surface of a material placement plate, the door of the box is closed to seal the vacuum chamber, then the second valve and the third valve are closed, and at the same time, the first valve is opened. The vacuum pump is started, and the air in the lower part of the vacuum chamber is pumped out through an air suction pipe to form a vacuum environment, and the bubbles between the boards are discharged.

Description

Technical Field

[0001] The present invention relates to the technical field of composite board production equipment, and specifically to a method for preparing composite boards using a vacuum press. Background Art

[0002] A composite board is a board composed of different materials with different functions in layers. For example, a three-in-one board for roofing, which includes concrete, a foam insulation layer, and a surface waterproof layer. A sandwich panel is also a type of composite board. Some composite boards are adhesively bonded in multiple layers and then extruded and formed by a hydraulic press.

[0003] In the prior art, such as the "Composite Board Pressing and Preparing Device" with Chinese Patent No.: CN214238685U, it includes a pressing table. A pressing frame is arranged on the top of the pressing table. Fixed boxes are arranged on both sides of the pressing frame. A refrigerator is arranged on one side inside the fixed box. A refrigeration pipe is arranged on one side of the refrigerator. An air pump is installed at the bottom of the fixed box. The air outlet end of the air pump is connected to a branch air pipe through a connecting pipe. A jet nozzle is installed on one side of the branch air pipe.

[0004] In the prior art, when a press presses an integrated board, it is unable to discharge the air between the panel and the core board, resulting in the retention of air in the glue. During the pressing process, high-pressure bubbles may be generated between the board layers. When the board is installed on the wall, due to changes in the external temperature, when the ambient temperature rises, the volume of the high-pressure bubbles expands, generating a large pressure difference. If there are too many high-pressure bubbles, it will cause the core material and the surface material to delaminate. If it is a flexible surface material, such as a metal aluminum plate, it may delaminate and become hollow due to excessive air pressure, resulting in a decrease in the wall surface flatness, affecting the appearance quality, and even causing delamination and falling off. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for preparing composite boards using a vacuum press, so as to solve the problem proposed in the above background art that when a press presses an integrated board, it is unable to discharge the air between the panel and the core board, resulting in the retention of air in the glue. During the pressing process, high-pressure bubbles may be generated between the board layers. When the board is installed on the wall, due to changes in the external temperature, when the ambient temperature rises, the volume of the high-pressure bubbles expands, generating a large pressure difference. If there are too many high-pressure bubbles, it will cause the core material and the surface material to delaminate. If it is a flexible surface material, such as a metal aluminum plate, it may delaminate and become hollow due to excessive air pressure, resulting in a decrease in the wall surface flatness, affecting the appearance quality, and even causing delamination and falling off.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A method for preparing composite boards using a vacuum press, which uses a vacuum press including a vacuum mechanism, and the vacuum mechanism is fixedly connected to an extrusion and composite mechanism;

[0007] The extrusion composite mechanism includes an exhaust pipe, a first spring, a plug board, a telescopic rod, a second spring, a second fixing plate, and an electric telescopic rod. The exhaust pipe is fixedly connected to the upper part of the vacuum chamber. The first spring is fixedly connected to the vacuum chamber and is also fixedly connected to a first connecting plate. The first connecting plate is fixedly connected to a second gasket. The second gasket is in close contact with a first gasket and is also in close contact with a fourth gasket. The plug board is fixedly connected to the first connecting plate and is also fixedly connected to a third gasket. The telescopic rod is fixedly connected to the vacuum chamber and is also fixedly connected to a slot. The slot is fixedly connected to a fifth gasket. The second spring is fixedly connected to the vacuum chamber and is also fixedly connected to the slot. The second fixing plate is fixedly connected to the vacuum chamber and is also fixedly connected to a material placement plate. The first connecting plate is fixedly connected to a pressing plate. The electric telescopic rod is fixedly connected to the second fixing plate and is also fixedly connected to the first connecting plate.

[0008] When preparing the composite board, close the door to seal the vacuum chamber, then close the second valve and the third valve, and at the same time open the first valve. Start the vacuum pump to extract the air from the lower part of the vacuum chamber through the suction pipe to form a vacuum environment. The bubbles between the plates are discharged, and at the same time, the extracted air is discharged into the upper part of the vacuum chamber through the exhaust pipe to form a high-pressure environment between the first connecting plate and the top of the vacuum chamber. At this time, due to the pressure difference, the first connecting plate drives the pressing plate to press down on the plate on the surface of the electric telescopic rod. During the downward movement of the first connecting plate, it drives the plug board and the third gasket to insert into the slot, improving the sealing performance below the first connecting plate and maintaining the stability of the vacuum environment, so that the plates can be stably pressed. When it is necessary to increase the pressure, open the electric telescopic rod to pull the first connecting plate downward to fully press the plates.

[0009] Preferably, the vacuum mechanism includes a vacuum chamber. The vacuum chamber is fixedly connected to a first fixing plate. The first fixing plate is fixedly connected to a vacuum pump. The vacuum pump is fixedly connected to a suction pipe. The suction pipe is fixedly and communicatively connected to the vacuum chamber.

[0010] Preferably, the vacuum chamber is rotatably connected to the door, and a sealing ring is provided on the surface of the vacuum chamber. A sealing groove is provided on the surface of the door. The sealing ring is located inside the sealing groove and is in close contact with the door.

[0011] Preferably, the vacuum chamber is fixedly connected to a first gasket. The door is fixedly connected to a fourth gasket.

[0012] Preferably, the vacuum chamber is fixedly and communicatively connected to a first connecting pipe. The first connecting pipe is fixedly connected to a second valve. The exhaust pipe is fixedly connected to the first valve. The vacuum chamber is fixedly and communicatively connected to a second connecting pipe. The second connecting pipe is fixedly connected to a third valve.

[0013] Preferably, a plurality of first springs are provided on the surface of the first connecting plate, and the plurality of first springs are evenly distributed on the surface of the first connecting plate.

[0014] Preferably, a plurality of telescopic rods are provided on the surface of the vacuum box, and the plurality of telescopic rods are evenly distributed on the surface of the vacuum box.

[0015] Preferably, the plug board is inserted into the slot, the third sealing gasket is in close fit with the fifth sealing gasket, and the slot is in close fit with the first sealing gasket.

[0016] Preferably, a plurality of electric telescopic rods are provided on the surface of the second fixing plate, and the plurality of electric telescopic rods are evenly distributed on the surface of the second fixing plate.

[0017] A method for preparing a composite board using a vacuum press includes the following steps:

[0018] S1. Place the board to be pressed on the surface of the material placement board, close the box door to seal the vacuum box, then close the second valve and the third valve, and at the same time open the first valve.

[0019] S2. Start the vacuum pump, extract the air from the lower part of the vacuum box through the suction pipe to form a vacuum environment, and at the same time discharge the extracted air into the upper part of the vacuum box through the exhaust pipe to form a high-pressure environment between the first connecting plate and the top of the vacuum box. The first connecting plate drives the extrusion plate to press down on the board on the surface of the electric telescopic rod. When it is necessary to increase the pressure, open the electric telescopic rod to pull the first connecting plate downward to press the board.

[0020] S3. Open the second valve and the third valve. At this time, the air in the upper part of the vacuum box is discharged, and the air in the lower part of the vacuum box enters. After the pressure inside the vacuum box is balanced, open the box door to complete the preparation of the composite board.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In the present invention, the board to be pressed is placed on the surface of the material placement board, the box door is closed to seal the vacuum box, then the second valve and the third valve are closed, and at the same time the first valve is opened. The vacuum pump is started, and the air in the lower part of the vacuum box is extracted through the suction pipe to form a vacuum environment, and the bubbles between the boards are discharged.

[0023] 2. In the present invention, the extracted air is discharged into the upper part of the vacuum chamber through the exhaust pipe, creating a high-pressure environment between the first connecting plate and the top of the vacuum chamber. At this time, due to the pressure difference, the first connecting plate drives the pressing plate to move downward to press the plate on the surface of the electric telescopic rod. During the downward movement of the first connecting plate, the plug board and the third gasket are driven to insert into the slot, improving the sealing performance of the lower part of the first connecting plate and maintaining the stability of the vacuum environment, so that the plate can be stably pressed. When it is necessary to increase the pressure, the electric telescopic rod is opened to pull the first connecting plate downward to fully press the plate.

[0024] 3. In the present invention, after the plate is prepared, the second valve and the third valve are opened. At this time, the air in the upper part of the vacuum chamber is discharged, and the air in the lower part of the vacuum chamber enters. After the pressure inside the vacuum chamber is balanced, the chamber door is opened. At this time, under the elastic force of the first spring, the first connecting plate is pulled upward to complete the reset, facilitating the removal of the plate on the surface of the material placement plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Structural schematic diagram of a vacuum press of the present invention Figure 1 ;

[0026] Figure 2 Structural schematic diagram of a vacuum press of the present invention Figure 2 ;

[0027] Figure 3 Top view structural schematic diagram of the first connecting plate of a vacuum press of the present invention;

[0028] Figure 4 Cross-sectional structural schematic diagram of the first connecting plate of a vacuum press of the present invention;

[0029] Figure 5 Cross-sectional structural schematic diagram of the slot of a vacuum press of the present invention;

[0030] Figure 6 Structural schematic diagram of the pressing plate of a vacuum press of the present invention;

[0031] Figure 7 Structural schematic diagram of the second connecting pipe of a vacuum press of the present invention.

[0032] In the figure:

[0033] 1. Vacuum mechanism; 2. Vacuum chamber; 3. Chamber door; 4. Sealing ring; 5. Sealing groove; 6. First fixing plate; 7. Vacuum pump; 8. Suction pipe; 9. Extrusion and compounding mechanism; 10. First valve; 11. First connecting pipe; 12. Second valve; 13. Second connecting pipe; 14. Third valve; 15. First gasket; 16. First connecting plate; 17. Second gasket; 18. First spring; 19. Plug board; 20. Third gasket; 21. Telescopic rod; 22. Second spring; 23. Slot; 24. Second fixing plate; 25. Material placement plate; 26. Electric telescopic rod; 27. Fourth gasket; 28. Extrusion plate; 29. Fifth gasket; 30. Exhaust pipe. Embodiment

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0035] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown in

[0036] Place the plates to be laminated on the surface of the material placement plate 25, close the box door 3 to enclose the vacuum box 2, then close the second valve 12 and the third valve 14, and at the same time open the first valve 10. Turn on the vacuum pump 7, and extract the air from the lower part of the vacuum box 2 through the suction pipe 8 to form a vacuum environment, and the bubbles between the plates are discharged.

[0037] At the same time, discharge the extracted air into the upper part of the vacuum box 2 through the exhaust pipe 30 to form a high-pressure environment between the first connecting plate 16 and the top of the vacuum box 2. At this time, under the pressure difference, the first connecting plate 16 drives the extrusion plate 28 to press down on the plates on the surface of the electric telescopic rod 26. During the downward movement of the first connecting plate 16, it drives the insertion plate 19 and the third gasket 20 to insert into the slot 23, improving the sealing performance of the lower part of the first connecting plate 16 and maintaining the stability of the vacuum environment, so that the plates can be stably laminated. When it is necessary to increase the pressure, open the electric telescopic rod 26 to pull the first connecting plate 16 downward to fully laminate the plates. Embodiment

[0038] According to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown in

[0039] After the plates are prepared, open the second valve 12 and the third valve 14. At this time, the air in the upper part of the vacuum box 2 is discharged, and the air in the lower part of the vacuum box 2 enters. After the pressure inside the vacuum box 2 is balanced, open the box door 3 to facilitate the removal of the plates on the surface of the material placement plate 25.

[0040] According to Figure 1 、 Figure 3 、 Figure 4 、and Figure 6As shown in the figure: There are multiple first springs 18 arranged on the surface of the first connecting plate 16, and the multiple first springs 18 are evenly distributed on the surface of the first connecting plate 16. There are multiple telescopic rods 21 arranged on the surface of the vacuum box 2, and the multiple telescopic rods 21 are evenly distributed on the surface of the vacuum box 2. The insertion plate 19 is inserted into the slot 23, the third gasket 20 is in close fit with the fifth gasket 29, the slot 23 is in close fit with the first gasket 15, and there are multiple electric telescopic rods 26 arranged on the surface of the second fixing plate 24, and the multiple electric telescopic rods 26 are evenly distributed on the surface of the second fixing plate 24.

[0041] After the plate is prepared, open the second valve 12 and the third valve 14. At this time, the air in the upper part of the vacuum box 2 is discharged, and the air in the lower part of the vacuum box 2 enters. After the pressure inside the vacuum box 2 is balanced, open the box door 3. At this time, under the elastic force of the first spring 18, the first connecting plate 16 is pulled up to complete the reset, which is convenient for taking out the plate on the surface of the material placing plate 25.

[0042] A method for preparing a composite plate using a vacuum press includes the following steps:

[0043] S1. Place the plate to be pressed on the surface of the material placing plate 25, close the box door 3 to seal the vacuum box 2, then close the second valve 12 and the third valve 14, and at the same time open the first valve 10.

[0044] S2. Start the vacuum pump 7, extract the air in the lower part of the vacuum box 2 through the suction pipe 8 to form a vacuum environment, and at the same time discharge the extracted air into the upper part of the vacuum box 2 through the exhaust pipe 30 to form a high-pressure environment between the first connecting plate 16 and the top of the vacuum box 2. The first connecting plate 16 drives the pressing plate 28 to press down on the plate on the surface of the electric telescopic rod 26. When it is necessary to increase the pressure, open the electric telescopic rod 26 to pull the first connecting plate 16 downward to press the plate.

[0045] S3. Open the second valve 12 and the third valve 14. At this time, the air in the upper part of the vacuum box 2 is discharged, and the air in the lower part of the vacuum box 2 enters. After the pressure inside the vacuum box 2 is balanced, open the box door 3 to complete the preparation of the composite plate.

[0046] The usage method and working principle of this device: Place the plate to be pressed on the surface of the material placing plate 25, close the box door 3 to seal the vacuum box 2, then close the second valve 12 and the third valve 14, and at the same time open the first valve 10. Start the vacuum pump 7, extract the air in the lower part of the vacuum box 2 through the suction pipe 8 to form a vacuum environment, and the bubbles between the plates are discharged.

[0047] Meanwhile, the extracted air is discharged into the upper part of the vacuum chamber 2 through the exhaust pipe 30, creating a high-pressure environment between the first connecting plate 16 and the top of the vacuum chamber 2. At this time, under the pressure difference, the first connecting plate 16 drives the pressing plate 28 to press down on the plate on the surface of the electric telescopic rod 26. During the downward movement of the first connecting plate 16, the insertion plate 19 and the third sealing gasket 20 are driven to insert into the inside of the slot 23, improving the sealing performance of the lower part of the first connecting plate 16 and maintaining the stability of the vacuum environment, so that the plate can be stably pressed. When it is necessary to increase the pressure, the electric telescopic rod 26 is opened to pull the first connecting plate 16 downward to fully press the plate.

[0048] After the plate is prepared, the second valve 12 and the third valve 14 are opened. At this time, the air in the upper part of the vacuum chamber 2 is discharged, and the air in the lower part of the vacuum chamber 2 enters. After the pressure inside the vacuum chamber 2 is balanced, the chamber door 3 is opened. At this time, under the elastic force of the first spring 18, the first connecting plate 16 is pulled upward to complete the reset, facilitating the removal of the plate on the surface of the material placement plate 25.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for preparing a composite board using a vacuum press, characterized in that: A vacuum press is used, which includes a vacuum mechanism (1), and the vacuum mechanism (1) is fixedly connected to an extrusion composite mechanism (9); The extrusion composite mechanism (9) includes an exhaust pipe (30), a first spring (18), a plug board (19), a telescopic rod (21), a second spring (22), a second fixing plate (24) and an electric telescopic rod (26). The exhaust pipe (30) is fixedly communicated with the upper part of a vacuum box (2). The first spring (18) is fixedly connected to the vacuum box (2), and the first spring (18) is fixedly connected to a first connecting plate (16). The first connecting plate (16) is fixedly connected to a second sealing gasket (17). The second sealing gasket (17) is closely attached to a first sealing gasket (15), and the second sealing gasket (17) is closely attached to a fourth sealing gasket (27). The plug board (19) is fixedly connected to the first connecting plate (16), and the plug board (19) is fixedly connected to a third sealing gasket (20). The telescopic rod (21) is fixedly connected to the vacuum box (2), and the telescopic rod (21) is fixedly connected to a slot (23). The slot (23) is fixedly connected to a fifth sealing gasket (29). The second spring (22) is fixedly connected to the vacuum box (2), and the second spring (22) is fixedly connected to the slot (23). The second fixing plate (24) is fixedly connected to the vacuum box (2), and the second fixing plate (24) is fixedly connected to a material placing plate (25). The first connecting plate (16) is fixedly connected to an extrusion plate (28). The electric telescopic rod (26) is fixedly connected to the second fixing plate (24), and the electric telescopic rod (26) is fixedly connected to the first connecting plate (16); The vacuum mechanism (1) includes a vacuum box (2). The vacuum box (2) is fixedly connected to a first fixing plate (6). The first fixing plate (6) is fixedly connected to a vacuum pump (7). The vacuum pump (7) is fixedly connected to an air suction pipe (8). The air suction pipe (8) is fixedly communicated with the vacuum box (2). The vacuum box (2) is rotatably connected to a box door (3), and a sealing ring (4) is arranged on the surface of the vacuum box (2). A sealing groove (5) is arranged on the surface of the box door (3). The sealing ring (4) is located inside the sealing groove (5) and is closely attached to the box door (3). The vacuum box (2) is fixedly connected to a first sealing gasket (15). The box door (3) is fixedly connected to a fourth sealing gasket (27); The vacuum chamber (2) is fixedly communicated with the first connecting pipe (11), the first connecting pipe (11) is fixedly connected with the second valve (12), the exhaust pipe (30) is fixedly connected with the first valve (10), the vacuum chamber (2) is fixedly communicated with the second connecting pipe (13), the second connecting pipe (13) is fixedly connected with the third valve (14), a plurality of first springs (18) are arranged on the surface of the first connecting plate (16), and the plurality of first springs (18) are evenly distributed on the surface of the first connecting plate (16). A plurality of telescopic rods (21) are arranged on the surface of the vacuum chamber (2), and the plurality of telescopic rods (21) are evenly distributed on the surface of the vacuum chamber (2). The plug board (19) is inserted into the slot (23), the third gasket (20) is in close fit with the fifth gasket (29), and the slot (23) is in close fit with the first gasket (15). A plurality of electric telescopic rods (26) are arranged on the surface of the second fixing plate (24), and the plurality of electric telescopic rods (26) are evenly distributed on the surface of the second fixing plate (24); The air extracted is discharged into the upper part of the vacuum chamber (2) through the exhaust pipe (30), forming a high-pressure environment between the first connecting plate (16) and the top of the vacuum chamber (2). At this time, under the pressure difference, the first connecting plate (16) drives the pressing plate (28) to press down on the plate on the surface of the electric telescopic rod (26). During the downward movement of the first connecting plate (16), the plug board (19) and the third gasket (20) are driven to insert into the slot (23) to maintain the stability of the vacuum environment, and the plate can be stably pressed. When it is necessary to increase the pressure, the electric telescopic rod (26) is opened to pull the first connecting plate (16) downward.

2. The method for preparing a composite board using a vacuum press according to claim 1, wherein It includes the following steps: S1. Place the plate to be pressed on the surface of the material placement plate (25), close the box door (3) to seal the vacuum chamber (2), then close the second valve (12) and the third valve (14), and at the same time open the first valve (10); S2. Start the vacuum pump (7), extract the air in the lower part of the vacuum chamber (2) through the suction pipe (8) to form a vacuum environment, and at the same time discharge the extracted air into the upper part of the vacuum chamber (2) through the exhaust pipe (30), forming a high-pressure environment between the first connecting plate (16) and the top of the vacuum chamber (2). The first connecting plate (16) drives the pressing plate (28) to press down on the plate on the surface of the electric telescopic rod (26). When it is necessary to increase the pressure, the electric telescopic rod (26) is opened to pull the first connecting plate (16) downward to press the plate; S3. Open the second valve (12) and the third valve (14). At this time, the air in the upper part of the vacuum chamber (2) is discharged, and the air in the lower part of the vacuum chamber (2) enters. After the pressure inside the vacuum chamber (2) is balanced, open the box door (3) to complete the preparation of the composite board.

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