Wood composite board hot-pressing device

Abstract

The utility model discloses a wood composite board hot pressing device which comprises a bearing frame, a first support and a second support are fixedly installed on the top face of the bearing frame, a hydraulic cylinder is fixedly installed on the first support, a lifting plate is installed at the telescopic end of the hydraulic cylinder, and a guide rod is arranged on the surface of the lifting plate in a penetrating mode. A limiting block is installed at one end of the guide rod, and a supporting plate is installed at the other end of the guide rod. According to the conveying device, the supporting frames capable of being adjusted oppositely are arranged, flexible adjustment can be conducted according to different widths of boards, the boards can be reliably guided in the conveying process, the risk that the boards are disengaged from the conveying rollers is greatly reduced, the stability and continuity of production are improved, and when wood composite boards of different specifications are machined, the production efficiency is improved. The conveying requirements of plates with different widths can be met only by starting the servo motor and adjusting the position of the supporting frame, and conveying equipment does not need to be frequently replaced or complex adjusting operation does not need to be conducted.

Description

Technical Field

[0001] This utility model relates to the field of wood composite board processing technology, and in particular to a wood composite board hot pressing device. Background Technology

[0002] Wood composite boards are widely used in furniture manufacturing, building decoration and other fields due to their good physical properties, processing properties and decorative properties. In the production process of wood composite boards, hot pressing is a crucial step, which can fully cure the adhesive, enhance the bonding force between wood units and improve the strength and stability of the composite board.

[0003] Existing technologies have the following problems:

[0004] Extensive searches revealed that patent application CN202423195537.6 discloses a hot-pressing device for wood composite boards. However, in terms of board conveying, the conveyor rollers in this patent lack an effective guiding structure, resulting in poor adaptability to boards of varying widths. When conveying boards of inconsistent widths, the boards are prone to shifting, wobbling, or even detaching from the conveyor rollers, affecting production efficiency, potentially damaging the boards, and increasing production costs. For example, some simple hot-pressing devices rely solely on ordinary flat belts for conveying, failing to consider the issues arising from differences in board width, leading to frequent board conveying failures in actual production. Furthermore, during the hot-pressing process, pressure uniformity is difficult to guarantee. The hot-pressing device employs a relatively simple pressure application method, and when the hot-pressing plate contacts the board, uneven force distribution can easily lead to over- or under-compaction in certain areas of the composite board. This not only affects the overall quality of the composite board but may also cause defects such as warping and delamination. When the hot-pressing plate presses down rapidly, the instantaneous impact can cause excessive localized stress on the board, thus reducing the product's pass rate.

[0005] To address these shortcomings, we propose a hot-pressing device for wood composite boards. Utility Model Content

[0006] The purpose of this invention is to provide a hot pressing device for wood composite boards to overcome the shortcomings of existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a wood composite board hot pressing device, comprising a support frame, a first bracket and a second bracket fixedly installed on the top surface of the support frame, a hydraulic cylinder fixedly installed on the first bracket, and a lifting plate installed on the telescopic end of the hydraulic cylinder, a guide rod penetrating the surface of the lifting plate, a limit block installed at one end of the guide rod, a support plate installed at the other end of the guide rod, and a buffer spring sleeved between the support plate and the lifting plate on the outside of the guide rod, a hot pressing plate provided on the bottom surface of the support plate, a hydraulic pump station fixedly installed on the top surface of the first bracket, a drive motor fixedly installed on the second bracket, and a cooling fan blade installed at the output end of the drive motor, a guide groove opened on the surface of the support frame, a servo motor installed inside the guide groove, a positive and negative threaded screw installed at the output end of the servo motor, and a threaded block used in conjunction with the surface of the positive and negative threaded screw, and the threaded block slidingly connected to the guide groove, a support frame welded to the top surface of the threaded block, and a pulley installed on the support frame.

[0008] Preferably, a control switch is fixedly installed on the surface of the support frame, and the control switch is electrically connected to the servo motor and the drive motor through wires.

[0009] Preferably, the pulleys are provided in multiple quantities, and the multiple pulleys are distributed at equal intervals on the support frame.

[0010] Preferably, the hydraulic pump station is used in conjunction with the hydraulic cylinder via pipelines.

[0011] Preferably, there are multiple guide rods, and the multiple guide rods are evenly distributed at the four corners of the surface of the lifting plate.

[0012] Preferably, the support frame is inclined.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features an adjustable support frame that can be flexibly adjusted according to the different widths of the boards. During the conveying process, it provides reliable guidance for the boards, greatly reducing the risk of the boards detaching from the conveyor rollers and improving the stability and continuity of production. When processing wood composite boards of different specifications, simply start the servo motor and adjust the position of the support frame to adapt to the conveying needs of boards of different widths, without the need for frequent changes in conveying equipment or complex adjustment operations.

[0015] In this invention, the design of the buffer spring plays a crucial role in the hot pressing process. When the hot pressing plate presses down, the buffer spring effectively cushions the impact force of the hot pressing plate on the board, making the pressure more evenly distributed on the board. This not only improves the hot pressing quality of the composite board and reduces defects such as warping and delamination, but also extends the service life of the board and the hot pressing plate. For example, when hot pressing thinner or softer wood composite boards, the buffer spring can prevent the hot pressing plate from excessively squeezing the board, ensuring that the quality of the composite board meets the standards. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a wood composite board hot pressing device proposed in this utility model;

[0018] Figure 2 This is a connection diagram of the support frame, the positive and negative lead screws, and the servo motor.

[0019] Figure 3 for Figure 1 A partial structural diagram;

[0020] Figure 4 for Figure 3 An enlarged diagram of A in the diagram.

[0021] Legend:

[0022] 1. Support frame; 2. First support; 3. Hydraulic cylinder; 4. Lifting plate; 5. Guide rod; 6. Limit block; 7. Buffer spring; 8. Support plate; 9. Hot press plate; 10. Support frame; 11. Pulley; 12. Guide groove; 13. Positive and negative threaded screw; 14. Threaded block; 15. Hydraulic pump station; 16. Servo motor; 17. Second support; 18. Drive motor; 19. Cooling fan blade; 20. Control switch. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, 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; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please refer to Figure 1-4 A wood composite board hot pressing device includes a support frame 1. A first support 2 and a second support 17 are fixedly installed on the top surface of the support frame 1. A hydraulic cylinder 3 is fixedly installed on the first support 2, and a lifting plate 4 is installed at the telescopic end of the hydraulic cylinder 3. A guide rod 5 is provided through the surface of the lifting plate 4, and a limit block 6 is installed at one end of the guide rod 5. A support plate 8 is installed at the other end of the guide rod 5, and a buffer spring 7 is sleeved between the support plate 8 and the lifting plate 4 on the outside of the guide rod 5. A hot pressing plate 9 is provided on the bottom surface of the support plate 8. The top surface of the first support 2... A hydraulic pump station 15 is fixedly installed. A drive motor 18 is fixedly installed on the second bracket 17. A cooling fan blade 19 is installed at the output end of the drive motor 18. A guide groove 12 is opened on the surface of the support frame 1. A servo motor 16 is installed inside the guide groove 12. A positive and negative threaded screw 13 is installed at the output end of the servo motor 16. A threaded block 14 is used in conjunction with the surface of the positive and negative threaded screw 13. The threaded block 14 is slidably connected to the guide groove 12. A support frame 10 is welded to the top surface of the threaded block 14. A pulley 11 is installed on the support frame 10.

[0026] Before starting the equipment, operate the control switch 20 to start the servo motor 16 according to the width of the wood composite board to be processed. The servo motor 16 drives the positive and negative threaded screws 13 to rotate. Since the threaded block 14 is threadedly connected to the positive and negative threaded screws 13 and slidably connected to the guide groove 12, the threaded block 14 will move along the guide groove 12 under the drive of the positive and negative threaded screws 13, thereby driving the support frame 10 welded to its top surface to move. Multiple pulleys 11 evenly distributed on the support frame 10 move accordingly, adjusting the support frame 10 to a suitable position so that the pulleys 11 can guide boards of different widths, while reducing the friction between the board and the support frame 10 during the conveying process. After completing the preparation work, place the wood composite board to be hot-pressed on the conveying roller. During the conveying process, the two sides of the board contact the pulleys 11 on the support frame 10. The pulleys 11 roll along the guide groove 12 to guide the board and prevent the board from shifting, shaking or falling off on the conveying roller, ensuring that the board is smoothly conveyed to the support plate 8. When the board is in place, operate the control switch 20 to start the servo motor 16. The hydraulic pump station 15 supplies pressurized oil to the hydraulic cylinder 3 through pipelines, causing the telescopic end of the hydraulic cylinder 3 to push the lifting plate 4 downward along the guide rods 5 evenly distributed at its four corners. The guide rods 5 act as guides, ensuring the lifting plate 4 descends smoothly. As the hot pressing plate 9 descends with the lifting plate 4, the buffer spring 7, sleeved on the outside of the guide rods 5 and located between the support plate 8 and the lifting plate 4, begins to function at the moment of contact with the board. This buffers the impact force of the hot pressing plate 9 on the board, allowing it to apply pressure evenly to achieve the hot pressing operation, promote the curing of the adhesive, and enhance the bonding force between the wood units. After the hot pressing is completed, the control switch 20 is operated again to reverse the movement of the hydraulic cylinder 3, raising the lifting plate 4 and the hot pressing plate 9 to their initial positions. At this time, the control switch 20 starts the drive motor 18, causing the cooling fan blades 19 to start rotating, cooling the hot-pressed composite board, accelerating the cooling of the composite board, and improving production efficiency. After cooling is completed, the conveying rollers rotate again, conveying the composite board out of the device, completing the entire hot pressing process.

[0027] In this embodiment: a control switch 20 is fixedly installed on the surface of the support frame 1, and the control switch 20 is electrically connected to the servo motor 16 and the drive motor 18 through wires.

[0028] Specifically, the common circuit connection structure will not be elaborated on here.

[0029] In this embodiment, multiple pulleys 11 are provided, and the multiple pulleys 11 are equidistantly distributed on the support frame 10.

[0030] Specifically, by reducing the friction between the sheet material and the support frame 10, the sheet material is transported more smoothly.

[0031] In this implementation plan: the hydraulic pump station 15 is used in conjunction with the hydraulic cylinder 3 through pipelines.

[0032] Specifically, this ensures that hydraulic cylinder 3 can operate normally.

[0033] In this implementation scheme: multiple guide rods 5 are provided, and the multiple guide rods 5 are evenly distributed at the four corners of the surface of the lifting plate 4.

[0034] Specifically, this makes the stress on the sheet material more uniform during the hot pressing process.

[0035] In this implementation plan: the support frame 10 is inclined.

[0036] Specifically, see the instruction manual. Figure 2 As shown, the sheet material can be guided and conveyed from left to right.

[0037] In this implementation scheme: the control switch 20 is an existing structure, and the control circuit can be implemented by a person skilled in the art through simple programming. It is common knowledge in the art, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0038] Working Principle: Before starting the equipment, operate the control switch 20 to start the servo motor 16 according to the width of the wood composite board to be processed. The servo motor 16 drives the positive and negative threaded screws 13 to rotate. Since the threaded block 14 is threadedly connected to the positive and negative threaded screws 13 and slidably connected to the guide groove 12, the threaded block 14 will move along the guide groove 12 under the drive of the positive and negative threaded screws 13, thereby driving the support frame 10 welded to its top surface to move. Multiple pulleys 11 evenly distributed on the support frame 10 move accordingly, adjusting the support frame 10 to a suitable position so that the pulleys 11 can guide boards of different widths, while reducing the friction between the board and the support frame 10 during the conveying process. After the preparation work is completed, place the wood composite board to be hot-pressed on the conveying roller. During the conveying process, the two sides of the board contact the pulleys 11 on the support frame 10. The pulleys 11 roll along the guide groove 12 to guide the board and prevent the board from shifting, shaking or falling off on the conveying roller, ensuring that the board is smoothly conveyed to the support plate 8. When the board is conveyed to the position, operate the control switch. 20. Start the hydraulic pump station 15. The hydraulic pump station 15 supplies pressurized oil to the hydraulic cylinder 3 through the pipeline. The telescopic end of the hydraulic cylinder 3 pushes the lifting plate 4 downward along the guide rods 5 evenly distributed at its four corners. The guide rods 5 play a guiding role to ensure that the lifting plate 4 descends smoothly. The hot pressing plate 9 descends with the lifting plate 4. At the moment of contact with the board, the buffer spring 7, which is sleeved on the outside of the guide rod 5 and located between the support plate 8 and the lifting plate 4, begins to play its role. It buffers the impact force of the hot pressing plate 9 on the board, so that the hot pressing plate 9 can apply pressure to the board evenly, realize the hot pressing operation, promote the curing of the adhesive, and enhance the bonding force between the wood units. After the hot pressing is completed, operate the control switch 20 again to make the hydraulic cylinder 3 move in the opposite direction, lifting the lifting plate 4 and the hot pressing plate 9 to the initial position. At this time, the control switch 20 starts the drive motor 18, so that the cooling fan blades 19 start to rotate to cool the hot-pressed composite board, accelerate the cooling of the composite board, and improve production efficiency. After cooling is completed, the conveying roller runs again to transport the composite board out of the device, completing the entire hot pressing process.

[0039] It should be noted that, as per the instruction manual... Figure 1 As shown, the conveyor rollers are roller type, and the positive and negative threaded screws 13 are located between the two conveyor rollers and are set parallel to the conveyor rollers. There will be no movement interference, which ensures that the support frame 10 can move and adjust along the axial direction of the conveyor rollers, thereby ensuring that different specifications of plates can be guided and conveyed.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wood composite board hot pressing device, comprising a support frame (1), characterized in that, The top surface of the support frame (1) is fixedly equipped with a first bracket (2) and a second bracket (17). A hydraulic cylinder (3) is fixedly installed on the first bracket (2), and a lifting plate (4) is installed on the telescopic end of the hydraulic cylinder (3). A guide rod (5) is provided through the surface of the lifting plate (4), and a limit block (6) is installed on one end of the guide rod (5). A support plate (8) is installed on the other end of the guide rod (5), and a buffer spring (7) is sleeved between the support plate (8) and the lifting plate (4) on the outside of the guide rod (5). A hot press plate (9) is provided on the bottom surface of the support plate (8). A hydraulic cylinder (3) is fixedly installed on the top surface of the first bracket (2). Pump station (15), the second bracket (17) is fixedly installed with a drive motor (18), and the output end of the drive motor (18) is equipped with a cooling fan blade (19). The surface of the support frame (1) is provided with a guide groove (12), and a servo motor (16) is installed inside the guide groove (12). The output end of the servo motor (16) is equipped with a positive and negative thread screw (13), and the surface of the positive and negative thread screw (13) is fitted with a threaded block (14). The threaded block (14) is slidably connected to the guide groove (12). The top surface of the threaded block (14) is welded with a support frame (10), and a pulley (11) is installed on the support frame (10).

2. The wood composite board hot pressing device according to claim 1, characterized in that, A control switch (20) is fixedly installed on the surface of the support frame (1), and the control switch (20) is electrically connected to the servo motor (16) and the drive motor (18) through wires.

3. The wood composite board hot pressing device according to claim 1, characterized in that, The pulleys (11) are provided in multiples, and the multiple pulleys (11) are equidistantly distributed on the support frame (10).

4. The wood composite board hot pressing device according to claim 1, characterized in that, The hydraulic pump station (15) is used in conjunction with the hydraulic cylinder (3) through pipelines.

5. The wood composite board hot pressing device according to claim 1, characterized in that, The guide rod (5) is provided in multiple parts, and the multiple guide rods (5) are evenly distributed at the four corners of the surface of the lifting plate (4).

6. The wood composite board hot pressing device according to claim 1, characterized in that, The support frame (10) is inclined.

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