Gradient density solid wood multilayer board production equipment and process method

Abstract

The invention discloses gradient density solid wood multi-layer board production equipment and a process method, and belongs to the technical field of gradient density solid wood multi-layer board production.The gradient density solid wood multi-layer board production equipment comprises a hot press body and hydraulic cylinders symmetrically installed at the top of the hot press body, and a top plate is fixed to the telescopic ends of the hydraulic cylinders and located in the hot press body; hot pressing plates are uniformly mounted in the hot press body; grooves are symmetrically formed in one sides of the hot pressing plates, and heat conduction plates are installed in the grooves in a hinged mode. The groove can be exposed before and after hot pressing through gravity falling and overturning clamping of the heat conduction plate, sufficient force application space is provided for plate taking and placing, digging or prizing is not needed, operation is convenient, plate edge damage is avoided, safe taking and placing can be achieved without waiting for cooling after hot pressing, the scalding risk is avoided, extra power driving is not needed, and the heat conduction plate can be taken and placed safely. The structure is simple and does not interfere with the hot pressing process, and the taking and placing efficiency and the operation safety are greatly improved while the gradient density forming precision is guaranteed.

Description

Technical Field

[0001] This invention relates to a production equipment for multi-layer solid wood boards, and particularly to a production equipment and process for gradient density multi-layer solid wood boards, belonging to the field of gradient density multi-layer solid wood board production technology. Background Technology

[0002] Gradient density multilayer solid wood boards, with their differentiated density design between the surface and core layers, combine high strength, high stability, and lightweight characteristics, leading to their increasingly widespread application in furniture manufacturing, architectural decoration, and interior design. Their production process involves several key steps, including assembly, gluing, and hot pressing. The precise control of the production equipment directly affects the density distribution and overall performance of the product. Among these, the hot pressing equipment, as a core component, facilitates stable bonding between the board layers through the proper matching and transmission of temperature and pressure. Simultaneously, it promotes the formation of a predetermined density gradient between the surface and core layers, making it a crucial link in ensuring the forming quality and mass production efficiency of gradient density multilayer solid wood boards.

[0003] There are shortcomings in the existing technology:

[0004] Existing gradient density solid wood multilayer board hot pressing equipment uses flat hot pressing plates. After hot pressing, the boards adhere to the plate, leaving no space for force application at the edges. Picking and placing the boards requires prying or manipulating, which is laborious and easily damages the boards. In addition, placing the boards too close to the equipment and exposing them to high temperatures poses a certain danger. Furthermore, the hot surface after heating poses a risk of burns if handled directly. Cooling down and waiting also affects production efficiency. Some auxiliary picking and placing structures are complex in design or require additional power, which can easily interfere with the hot pressing process and result in poor adaptability.

[0005] To address these issues, gradient density solid wood multilayer board production equipment and processes were designed. Summary of the Invention

[0006] The main objective of this invention is to provide production equipment and process methods for gradient density multilayer solid wood boards to solve the problems mentioned in the background art.

[0007] The objective of this invention can be achieved by adopting the following technical solution:

[0008] Gradient density multilayer solid wood board production equipment and process, including a hot press body and hydraulic cylinders symmetrically installed on the top of the hot press body. The telescopic ends of the hydraulic cylinders are fixed with top plates, and the top plates are located inside the hot press body. Hot press plates are uniformly installed inside the hot press body. Each hot press plate has a groove symmetrically opened on one side. A heat-conducting plate is hinged inside each groove. An installation component is set between the heat-conducting plate and the groove. Ball bearings are set at the bottom of each heat-conducting plate.

[0009] Preferably, the mounting assembly includes a mounting slot, a retaining slot, and a sliding groove. The mounting slots are symmetrically opened on both sides of the heat-conducting plate. A rotating shaft is slidably installed inside each mounting slot. A baffle is fixed to the bottom of each rotating shaft. A sleeve is threadedly connected between the rotating shafts. The retaining slot is opened on one side of the heat-conducting plate. The sliding grooves are symmetrically opened on the inner sidewall of the groove. A slot is opened inside one end of each sliding groove, and the slot is slidably connected to the rotating shaft. A stop is fixed at the end of the sliding groove near the slot, and the stop is movably connected to the baffle.

[0010] Preferably, the bottom of the heat-conducting plate away from the groove has an arc-shaped groove, and the outer side of the heat-conducting plate has an anti-stick layer.

[0011] Preferably, the outer side of the sleeve is fitted with a protective layer, and the outer side of the protective layer is provided with anti-slip texture.

[0012] Preferably, the ball bearings are high-temperature resistant ceramic pulley assemblies, and the ball bearings are rotatably connected to the heat-conducting plate via a fixed shaft.

[0013] Preferably, the stop is a fan-shaped block, and buffer pads are provided on both sides of the stop.

[0014] Preferably, the sleeve has external threads with opposite directions at both ends, the shaft has internal threads that are compatible with the external threads, and the length of the sleeve is greater than the total length of the two sets of shafts.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention utilizes the combined use of a hot press body, hydraulic cylinder, top plate, hot press plate, heat-conducting plate, groove, and ball bearings. The heat-conducting plate's gravity allows for downward and flipping engagement, exposing the groove before and after hot pressing. This provides ample space for loading and unloading materials, eliminating the need for prying or manipulating. Operation is convenient and avoids edge damage. Materials can be safely loaded and unloaded without waiting for cooling after hot pressing, mitigating the risk of burns. No additional power is required, and the simple structure does not interfere with the hot pressing process. While ensuring the precision of gradient density molding, it significantly improves loading and unloading efficiency and operational safety.

[0017] 2. This invention facilitates the maintenance of the heat-conducting plate through the combined use of mounting groove, rotating shaft, baffle, sleeve, sliding groove, stop block, slot and card slot. When disassembling the heat-conducting plate, only the sleeve needs to be rotated to remove the retractable parts. The operation is simple and effortless, which improves the efficiency of picking and putting in, ensures the safety of operation, and the simple structure does not interfere with the hot pressing process. Attached Figure Description

[0018] Figure 1 This is a front sectional view of the present invention;

[0019] Figure 2 This is a partial structural diagram of the present invention;

[0020] Figure 3For the present invention Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the hot press plate of the present invention.

[0022] In the diagram: 1. Hot press body; 2. Hydraulic cylinder; 3. Top plate; 4. Hot press plate; 5. Heat conduction plate;

[0023] 6. Mounting components; 601. Mounting slot; 602. Shaft; 603. Baffle; 604. Sleeve; 605. Slide groove; 606. Stop block; 607. Slot; 608. Card slot;

[0024] 7. Groove; 8. Ball bearing. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the embodiments of the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Example 1

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a gradient density solid wood multilayer board production equipment and process, including a hot press body 1 and hydraulic cylinders 2 symmetrically installed on the top of the hot press body 1. The telescopic end of the hydraulic cylinder 2 is fixed with a top plate 3, and the top plate 3 is located inside the hot press body 1. Hot press plates 4 are uniformly installed inside the hot press body 1. Grooves 7 are symmetrically opened on one side of each hot press plate 4. Heat-conducting plates 5 are hinged inside each groove 7. An installation component 6 is provided between the heat-conducting plate 5 and the groove 7. Ball bearings 8 are provided at the bottom of each heat-conducting plate 5.

[0032] Hydraulic cylinder 2 is activated to lift the hot press plate 4, creating a gap between the hot press plates 4. The heat-conducting plate 5 on the lifted hot press plate 4 hangs down under gravity, exposing the groove 7. Then, the plate to be hot-pressed is placed on top of the hot press plate 4 by hand, and the position of the plate is manually adjusted through the groove 7. Hydraulic cylinder 2 is activated to move the top plate 3 and the hot press plate 4 downward, reducing the gap between the hot press plates 4. At the same time, the plate at the bottom pushes the heat-conducting plate 5 upward at the hinge point until the heat-conducting plate 5 is completely engaged inside the groove 7, forming a single plate with the hot press plate 4 for hot pressing. After hot pressing is completed, hydraulic cylinder 2 drives the hot press plate 4 upward, and under gravity, the heat-conducting plate 5 hangs down again, exposing the groove 7 for easy removal of the plate.

[0033] Example 2

[0034] The solution in Example 1 will be further described below with reference to its specific working method.

[0035] like Figure 1 As shown, in a preferred embodiment, based on the above method, the mounting component 6 further includes a mounting groove 601, a slot 608, and a sliding groove 605. The mounting groove 601 is symmetrically opened on both sides of the heat-conducting plate 5. A rotating shaft 602 is slidably installed inside the mounting groove 601. A baffle 603 is fixed to the bottom of each rotating shaft 602. A sleeve 604 is threadedly connected between the rotating shafts 602. The slot 608 is opened on one side of the heat-conducting plate 5. The sliding groove 605 is symmetrically opened on the inner sidewall of the groove 7. A slot 607 is opened inside one end of each sliding groove 605, and the slot 607 is slidably connected to the rotating shaft 602. A stop block 606 is fixed to the end of the sliding groove 605 near the slot 607, and the stop block 606 is movably connected to the baffle 603.

[0036] When the hot press plate 4 is lifted, the heat-conducting plate 5 hangs down under the action of gravity. The heat-conducting plate 5 drives the rotating shaft 602 and the baffle 603 to rotate until the baffle 603 rotates to contact the stop block 606. The stop block 606 limits the angle of the baffle 603 to prevent the heat-conducting plate 5 from being completely perpendicular to the hot press plate 4. When it is necessary to remove the heat-conducting plate 5, rotate the sleeve 604. After the sleeve 604 drives the baffle 603 to fit against one side of the stop block 606, continue to rotate the sleeve 604. Under the limitation of the stop block 606, the sleeve 604 drives the baffle 603 and the rotating shaft 602 to move into the mounting groove 601. After the baffle 603 and the rotating shaft 602 retract into the mounting groove 601, the heat-conducting plate 5 is taken out laterally along the slide groove 605.

[0037] like Figure 2 and Figure 4 As shown, in a preferred embodiment, based on the above method, an arc-shaped groove is further provided at the bottom of the end of the heat-conducting plate 5 away from the groove 7, and an anti-stick layer is provided on the outer side of the heat-conducting plate 5.

[0038] The arc groove can reduce the contact resistance when the plate pushes the heat-conducting plate 5 to flip, making the flipping action smooth and without jamming, ensuring the continuous and efficient hot pressing process. The anti-stick layer can effectively prevent the glue from sticking to the heat-conducting plate 5 during hot pressing.

[0039] like Figure 4 As shown, in a preferred embodiment, based on the above method, a protective layer is further provided on the outer side of the sleeve 604, and the outer side of the protective layer is provided with anti-slip texture.

[0040] The protective layer can effectively protect the sleeve 604 from hot pressing, high temperature and glue corrosion, and extend its service life; the anti-slip texture can increase the friction coefficient between the hand and the sleeve 604, making it less likely to slip when rotating and adjusting.

[0041] like Figure 2 and Figure 4 As shown, in a preferred embodiment, based on the above method, the ball 8 is further a high-temperature resistant ceramic pulley assembly, and the ball 8 is rotatably connected to the heat-conducting plate 5 through a fixed shaft.

[0042] The high-temperature resistant ceramic material is suitable for hot pressing and high-temperature working conditions, and is not easily deformed or damaged, with strong adaptability; the pulley structure transforms the sliding friction between the heat-conducting plate 5 and the inner wall of the groove 7 into rolling friction, significantly reducing the resistance to falling and turning, and making the heat-conducting plate 5 move more flexibly.

[0043] like Figure 4 As shown, in a preferred embodiment, based on the above method, the stop 606 is further configured as a fan-shaped block, and buffer pads are provided on both sides of the stop 606.

[0044] The fan-shaped block structure can precisely fit with the baffle 603, achieving precise limiting of the downward angle of the heat-conducting plate 5, and preventing excessive swinging that would affect the loading and unloading of the plate; the buffer pad can buffer the impact force when the baffle 603 contacts the stop block 606, preventing wear and deformation.

[0045] like Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the sleeve 604 is further provided with external threads with opposite directions at both ends, and the shaft 602 is provided with internal threads that are adapted to the external threads. The length of the sleeve 604 is greater than the total length of the two sets of shafts 602.

[0046] The opposite-direction external thread design allows the two sets of rotating shafts 602 to retract into the mounting groove 601 or extend outward simultaneously when rotating the sleeve 604, resulting in efficient operation and good synchronization; the length design of the sleeve 604 ensures that the baffle 603 can be completely retracted into the mounting groove 601.

[0047] Example 3

[0048] The solutions in Embodiment 1 and Embodiment 2 will be further described below with reference to their specific working methods.

[0049] Start hydraulic cylinder 2 to lift hot press plate 4 upward, so that a preset distance is formed between adjacent hot press plates 4;

[0050] The heat-conducting plate 5 on the hot press plate 4 hangs down naturally under the action of gravity, simultaneously driving the rotating shaft 602 and the two sets of baffles 603 to rotate until the baffles 603 contact the stop block 606. The stop block 606 limits the angle of the baffles 603 to prevent the heat-conducting plate 5 from being completely perpendicular to the hot press plate 4.

[0051] After the heat-conducting plate 5 is lowered, the groove 7 on one side of the hot press plate 4 is fully exposed. The plate to be hot-pressed is placed on the top of the hot press plate 4 by hand, and the plate is manually adjusted through the groove 7 to ensure accurate positioning.

[0052] Restart hydraulic cylinder 2 to drive top plate 3 and hot press plate 4 to move down synchronously. The distance between adjacent hot press plates 4 gradually decreases. The bottom plate pushes heat conduction plate 5 upward, causing it to rotate upward around pivot 602 as hinge point, until heat conduction plate 5 is completely rotated into groove 7, forming a flat pressing surface together with hot press plate 4, and hot pressing the plate is formed.

[0053] After hot pressing is completed, hydraulic cylinder 2 drives hot pressing plate 4 to lift up again, and heat conduction plate 5 hangs down again under the action of gravity, exposing groove 7, which makes it easy for manual removal of the formed plate.

[0054] When it is necessary to disassemble the heat-conducting plate 5, rotate the sleeve 604 to drive the two sets of baffles 603 to fit against the side of the stop block 606. Continue to rotate the sleeve 604. Under the limiting action of the stop block 606, the sleeve 604 drives the two sets of baffles 603 to retract into the mounting groove 601. After the baffles 603 have completely retracted into the mounting groove 601, the heat-conducting plate 5 can be pulled out laterally along the slide groove 605 to complete the disassembly.

[0055] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A gradient density solid wood multilayer board production equipment, comprising a hot press body (1) and hydraulic cylinders (2) symmetrically installed on the top of the hot press body (1), with a top plate (3) fixed to the telescopic end of the hydraulic cylinders (2), and the top plate (3) located inside the hot press body (1), and hot press plates (4) uniformly installed inside the hot press body (1); characterized in that: The hot press plate (4) has symmetrical grooves (7) on one side. The heat-conducting plate (5) is hinged inside the groove (7). An installation component (6) is provided between the heat-conducting plate (5) and the groove (7). Ball bearings (8) are provided at the bottom of the heat-conducting plate (5).

2. The gradient density solid wood multilayer board production equipment according to claim 1, characterized in that: The mounting assembly (6) includes a mounting groove (601), a slot (608), and a sliding groove (605). The mounting groove (601) is symmetrically opened on both sides of the heat-conducting plate (5). A rotating shaft (602) is slidably installed inside the mounting groove (601). A baffle (603) is fixed at the bottom of the rotating shaft (602). A sleeve (604) is threaded between the rotating shafts (602). The slot (608) is opened on one side of the heat-conducting plate (5). The sliding groove (605) is symmetrically opened on the inner side wall of the groove (7). A slot (607) is opened inside one end of the sliding groove (605), and the slot (607) is slidably connected to the rotating shaft (602). A stop (606) is fixed at the end of the sliding groove (605) near the slot (607), and the stop (606) is movably connected to the baffle (603).

3. The gradient density solid wood multilayer board production equipment according to claim 1, characterized in that: The bottom of the heat-conducting plate (5) away from the groove (7) has an arc groove, and the outer side of the heat-conducting plate (5) is provided with an anti-stick layer.

4. The gradient density solid wood multilayer board production equipment according to claim 2, characterized in that: The outer side of the sleeve (604) is fitted with a protective layer, and the outer side of the protective layer is provided with anti-slip texture.

5. The gradient density solid wood multilayer board production equipment according to claim 1, characterized in that: The ball (8) is a high-temperature resistant ceramic pulley assembly. The ball (8) is rotatably connected to the heat-conducting plate (5) through a fixed shaft.

6. The gradient density solid wood multilayer board production equipment according to claim 2, characterized in that: The stop block (606) is configured as a fan-shaped block, and buffer pads are provided on both sides of the stop block (606).

7. The gradient density solid wood multilayer board production equipment according to claim 2, characterized in that: The sleeve (604) has external threads with opposite directions at both ends, and the shaft (602) has internal threads that are compatible with the external threads. The length of the sleeve (604) is greater than the total length of the two sets of shafts (602).

8. A process method for producing gradient density multilayer solid wood boards, based on the gradient density multilayer solid wood board production equipment according to any one of claims 1-7, characterized in that: Includes the following steps: Step 1: The hydraulic cylinder (2) is started to lift the hot plate (4) so ​​that there is a gap between the hot plate (4). The heat-conducting plate (5) on the lifted hot plate (4) hangs down under the action of gravity, so that the groove (7) is exposed. Step 2: Then, manually place the plate to be hot-pressed on top of the hot press plate (4), manually adjust the placement position of the plate through the groove (7), start the hydraulic cylinder (2) to drive the top plate (3) and the hot press plate (4) to move down, and reduce the distance between the hot press plates (4); Step 3: At the same time, the bottom plate pushes the heat-conducting plate (5) upward to flip it upward at the hinge point until the heat-conducting plate (5) is completely locked inside the groove (7), so that it forms a plate with the hot pressing plate (4) and heat-presses the plate. After the heat pressing is completed, the hydraulic cylinder (2) drives the hot pressing plate (4) to move upward, and under the action of gravity, the heat-conducting plate (5) falls down again to expose the groove (7) to facilitate the removal of the plate.

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