Anti-warping frame device of a hot press

Abstract

This utility model discloses an anti-warping frame pressing device for a hot press, belonging to the technical field of frame pressing devices. It includes an operating table with two connecting rods on both sides, one end of which is connected to a mounting wall; a flattening mechanism comprising two movable frames mounted on the top of the operating table, with multiple limiting frames on the inner wall of each frame; a contour strip between adjacent limiting frames, with both ends of the contour strip passing through the corresponding limiting frames; and an edge pressing mechanism including a mounting base mounted on the outer wall of one side of the mounting wall, with a drive shaft passing through the mounting base and a rotating block outside the drive shaft, one end of which is connected to a pressing rod. In this utility model, the flattening mechanism removes air between the decorative panel and the wooden substrate to prevent air bubbles from forming during hot pressing, and the edge pressing mechanism presses the edge of the decorative panel to prevent warping during the cooling stage after hot pressing.

Description

Technical Field

[0001] This utility model belongs to the technical field of frame pressing devices, and particularly relates to an anti-warping frame pressing device for a hot press. Background Technology

[0002] A hot press is a device that processes materials through heating and pressure. It is widely used in industrial manufacturing, scientific research and light industry production. Its core structure includes a pressure actuation unit, a heat supply unit and a control system. The steps of material processing by a hot press are loading, heating and pressurizing and cooling, among which heating and pressurizing are the key steps in material processing.

[0003] Traditional hot presses lack effective pre-flattening treatment before bonding decorative panels to wooden substrates. Air between the decorative panels and wooden substrates cannot be fully expelled. After hot pressing, residual gas expands due to heat, forming bubbles. During the cooling stage, this causes irregular wrinkles on the surface of the decorative panel, severely affecting its aesthetics. Decorative panels often have specific textures or three-dimensional finishes. Conventional flattening devices are prone to damaging or deforming these textures due to concentrated pressure, lacking adaptability and protection for the surface structure. At the same time, during the cooling process of the board after hot pressing, the edges of the decorative panel are prone to wrinkles due to the release of internal stress and material shrinkage. This results in poor edge flatness after the product has completely cooled, reducing the yield rate. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-warping frame device for a hot press to solve the problems of traditional hot presses not protecting the texture of decorative panels and the easy warping of decorative panels after hot pressing and cooling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hot press anti-warping edge pressing device, comprising an operating table, two connecting rods on both sides of the operating table, one end of the connecting rods being connected to a mounting wall, a flattening mechanism, the flattening mechanism comprising two movable frames disposed on the top of the operating table, the inner wall of the movable frames being provided with multiple limiting frames, a contour strip being disposed between two adjacent limiting frames, the two ends of the contour strip respectively passing through the limiting frames at corresponding positions, the contour strip being configured such that its outer wall is fitted with the outer surface of the decorative panel to form a contour area with the same texture as the decorative panel, and an edge pressing mechanism, the edge pressing mechanism comprising a mounting base mounted on one side of the outer wall of the mounting wall, a drive shaft passing through the mounting base, a rotating block disposed outside the drive shaft, one end of the rotating block being connected to a pressing rod, the pressing rod being configured to rotate around the drive shaft as the axis to press the edge of the decorative surface.

[0006] Preferably, a support plate is provided below the operating table, and a stroke groove is provided on the top outer wall of the support plate. A gear is provided inside the stroke groove, and racks are slidably connected to the inner walls on both sides of the stroke groove.

[0007] Preferably, a motor is fixedly installed on the bottom outer wall of the support plate, and the output end of the motor is fixedly connected to the outer wall of the gear side.

[0008] Preferably, the inner wall of the movable frame is connected to a plurality of sleeve rods, one end of each sleeve rod is connected to a rotating frame, and an extrusion roller is rotatably connected inside the rotating frame. The outer wall of the extrusion roller is in contact with the outer wall of the top of the contour strip.

[0009] Preferably, a spring is sleeved on the outside of the sleeve rod, and the two ends of the spring are fixedly connected to the inner wall of the movable frame and the outer wall of the top of the rotating frame, respectively.

[0010] Preferably, the bottom of the operating table is connected to multiple rotating seats, and a hydraulic rod is rotatably connected inside the rotating seat. One end of the hydraulic rod is rotatably connected to a drive block, and one end of the drive shaft passes through the drive block.

[0011] Preferably, a plurality of buffer blocks are connected to one side of the outer wall of the extrusion rod, and one side of the outer wall of the buffer block is in contact with the top outer wall of the operating table.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by setting a flattening mechanism, the decorative panel is flattened before hot pressing, eliminating the air between the decorative panel and the wood composite board, preventing the formation of air bubbles directly between the decorative panel and the wood composite board, and preventing wrinkles from forming at the locations of air bubbles after hot pressing, which would affect the appearance of the decorative panel. At the same time, by setting an elastic contour strip, a contour area with the same texture as the surface of the decorative panel can be formed, protecting the texture of the decorative panel from damage during the flattening process, and making the synchronous alignment of textures more accurate.

[0014] 2. In this utility model, by setting an edge pressing mechanism, the edge part of the decorative panel is fixed to prevent the edge from twisting and wrinkling due to the residual internal stress of the material during the cooling stage after hot pressing, thus ensuring the edge flatness of the product, improving the yield rate, and ensuring the final quality of the product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an anti-warping frame pressing device for a hot press proposed in this utility model;

[0016] Figure 2 This is a schematic diagram showing the disassembled structure of an anti-warping frame device for a hot press according to the present invention.

[0017] Figure 3 This is a schematic diagram of the flattening mechanism of the anti-warping frame pressing device for a hot press proposed in this utility model;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of part A in the middle;

[0019] Figure 5 This is a schematic diagram of the edge pressing mechanism of an anti-warping edge pressing frame device for a hot press proposed in this utility model.

[0020] Legend: 1. Operating table; 2. Connecting rod; 3. Mounting wall; 4. Support plate; 5. Stroke groove; 6. Flattening mechanism; 601. Moving frame; 602. Rack; 603. Gear; 604. Motor; 605. Limit frame; 606. Contour strip; 607. Rotating frame; 608. Sleeve rod; 609. Spring; 610. Extrusion roller; 7. Edge pressing mechanism; 701. Mounting base; 702. Drive shaft; 703. Drive block; 704. Rotating base; 705. Hydraulic rod; 706. Rotating block; 707. Extrusion rod; 708. Buffer block. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This utility model provides a technical solution: an anti-warping frame pressing device for a hot press, including an operating table 1, with two connecting rods 2 on both sides of the operating table 1, one end of each connecting rod 2 being connected to a mounting wall 3, and a flattening mechanism 6. The flattening mechanism 6 includes two movable frames 601 set on the top of the operating table 1, with multiple limiting frames 605 set on the inner wall of the movable frames 601, and a contour strip 606 set between two adjacent limiting frames 605, with both ends of the contour strip 606 passing through the corresponding limiting frames. Inside 605, the contour strip 606 is configured to fit the outer wall of the decorative panel with the outer surface, forming a contour area with the same texture as the decorative panel. The edge pressing mechanism 7 includes a mounting base 701 installed on the outer wall of one side of the mounting wall 3. A drive shaft 702 is installed inside the mounting base 701. A rotating block 706 is provided outside the drive shaft 702. One end of the rotating block 706 is connected to a pressing rod 707. The pressing rod 707 is configured to rotate around the drive shaft 702 to press the edge of the decorative surface.

[0023] A support plate 4 is provided below the operating table 1. A stroke groove 5 is provided on the top outer wall of the support plate 4. A gear 603 is provided inside the stroke groove 5. A rack 602 is slidably connected to the inner walls on both sides of the stroke groove 5.

[0024] A motor 604 is fixedly installed on the bottom outer wall of the support plate 4, and the output end of the motor 604 is fixedly connected to the outer wall of one side of the gear 603.

[0025] Multiple sleeve rods 608 are connected to the inner wall of the movable frame 601. One end of the sleeve rod 608 is connected to a rotating frame 607. An extrusion roller 610 is rotatably connected inside the rotating frame 607. The outer wall of the extrusion roller 610 is in contact with the top outer wall of the contour strip 606.

[0026] A spring 609 is sleeved on the outside of the sleeve rod 608. The two ends of the spring 609 are fixedly connected to the inner wall of the movable frame 601 and the top outer wall of the rotating frame 607, respectively.

[0027] Specifically, in the initial state, the two movable frames 601 are far apart and located on both sides of the operating table 1. The wooden substrate is placed on the table surface of the operating table 1, and then the decorative panel is aligned with the wooden substrate and placed on top of the wooden substrate. The motor 604 is started, and the motor 604 drives the gear 603 to rotate through the output shaft. The gear 603 meshes with the rack 602. When the gear 603 rotates clockwise, the two racks 602 move closer to each other, and the racks 602 drive the movable frames 601 to move. The two movable frames 601 move closer to each other. The contour strip 606 is made of elastic material. The bottom outer wall of the contour strip 606 is in contact with the outer surface of the decorative panel. The contour strip 606 changes with the texture of the outer surface of the decorative panel. The top outer wall of the contour strip 606 is in contact with the outer wall of the extrusion roller 610. When the contour strip 606 changes, it pushes the extrusion roller 610 upward. The spring 609, which is sleeved on the outside of the sleeve rod 608, is compressed. The spring 609 pushes the extrusion roller 610 downward through its elastic force, so that the extrusion roller 610 applies downward pressure to the contour strip 606, making the contour strip 606 fit more tightly with the texture of the outer surface of the decorative panel. The contour strip 606 slides across the outer surface of the decorative panel as the moving frame 601 moves, making the decorative panel and the wooden substrate more fully in contact. After the left and right moving frames 601 move to the center position and make contact with each other, the motor 604 runs in the opposite direction, the gear 603 rotates counterclockwise, the two racks 602 move away from each other and drive the two moving frames 601 to move away from each other. The contour strip 606 slides across the outer surface of the decorative panel again from the center position, expelling the air between the decorative panel and the wooden substrate, reducing the air bubbles generated during hot pressing, and making the decorative panel fit more tightly and naturally with the wooden substrate after hot pressing.

[0028] It should be noted that the selection of motor 604 in the above description is as needed. Motor 604 is controlled by an external control unit. This part is well-known technology in the field and will not be described in detail here.

[0029] The bottom of the control panel 1 is connected to multiple rotating seats 704. A hydraulic rod 705 is rotatably connected inside the rotating seat 704. One end of the hydraulic rod 705 is rotatably connected to a drive block 703. One end of the drive shaft 702 passes through the drive block 703.

[0030] Multiple buffer blocks 708 are connected to one side of the outer wall of the extrusion rod 707, and one side of the outer wall of the buffer block 708 is in contact with the top outer wall of the operating table 1.

[0031] Specifically, the hydraulic rod 705 is controlled by an external oil circuit system. Both ends of the drive shaft 702 pass through corresponding drive blocks 703. Initially, the sidewalls of the drive blocks 703 are parallel to the top of the operating table 1. The rotating block 706 has an L-shaped cross-section. Initially, the shorter end of the L-shape of the rotating block 706 is parallel to the top of the operating table 1. The external oil circuit system controls the extension of the hydraulic rod 705. One end of the hydraulic rod 705 rotates around the axis of the rotating seat 704. The extension and retraction of the hydraulic rod 705 drives the drive blocks 703 around the drive shaft 702. Rotating downwards by 90 degrees, the drive shaft 702 rotates synchronously with the drive block 703 by 90 degrees. The drive shaft 702 drives the rotating block 706 to rotate downwards by 90 degrees, causing the pressing rod 707 connected to the shorter L-shaped end of the rotating block 706 to press down and make the bottom outer wall of the pressing rod 707 fit against the outer surface of the decorative panel edge. The buffer block 708 connected to the bottom of the pressing rod 707 is made of elastic material to prevent stress from damaging the texture of the decorative panel edge. The pressing rod 707 presses the edge of the decorative panel tightly to prevent the edge of the decorative panel from warping during the cooling process.

[0032] It should be noted that the external oil circuit system described above consists of a system flow distributor, a position sensor, a flow divider valve, and a proportional valve. The flow distributor distributes the oil flow to the hydraulic rod 705, the position sensor controls the movement path of the hydraulic rod 705, and the flow divider valve and proportional valve precisely control the oil flow rate and pressure. This part is well-known technology in the field and will not be elaborated here.

[0033] It should be noted that the elastic material mentioned above is rubber, which is a highly elastic polymer material with reversible deformation. It is elastic at room temperature and can produce large deformation under a small external force. After the external force is removed, it can return to its original shape. This part is well known in the field and will not be described in detail here.

[0034] Working principle: In use, the operator first places and fixes the wooden substrate on the workbench 1, then aligns the decorative panel with the wooden substrate and places the decorative panel on top of the wooden substrate. The operator then starts the motor 604, causing the flattening mechanism 6 to slide from the outside to the inside across the outer surface of the decorative panel. When the two moving frames 601 reach the center, the operator reverses the motor 604, causing the flattening mechanism 6 to slide from the inside to the outside across the outer surface of the decorative panel, expelling the air between the decorative panel and the wooden substrate and making them fit more tightly. Then, the operator controls the edge pressing mechanism 7 through the external oil circuit system to press the edge of the decorative panel. The operator then starts the hot press to perform the hot pressing process. After the hot pressing is completed, the operator waits for the decorative panel to cool down. During this period, the edge pressing mechanism 7 continues to press the edge of the decorative panel to prevent it from warping. After the decorative panel has completely cooled down, the operator controls the edge pressing mechanism 7 to move away from the edge of the decorative panel through the external oil circuit system.

[0035] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] 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 device for preventing edge lifting of a press frame of a hot press, characterized in that, include: The operating table (1) has two connecting rods (2) on both sides, and one end of the connecting rod (2) is connected to the mounting wall (3). A flattening mechanism (6) includes two movable frames (601) set on the top of the operating table (1). The inner wall of the movable frame (601) is provided with a plurality of limiting frames (605). A contour strip (606) is provided between two adjacent limiting frames (605). The two ends of the contour strip (606) are respectively inserted into the corresponding limiting frames (605). The contour strip (606) is configured such that its outer wall is attached to the outer surface of the decorative panel to form a contour area with the same texture as the decorative panel. The edge pressing mechanism (7) includes a mounting base (701) installed on the outer wall of one side of the mounting wall (3). A drive shaft (702) is installed inside the mounting base (701). A rotating block (706) is provided outside the drive shaft (702). One end of the rotating block (706) is connected to an extrusion rod (707). The extrusion rod (707) is configured to rotate around the drive shaft (702) to press the edge of the decorative surface.

2. A device for preventing edge lifting of a press frame of a hot press according to claim 1, wherein A support plate (4) is provided below the operating table (1). A stroke groove (5) is provided on the top outer wall of the support plate (4). A gear (603) is provided inside the stroke groove (5). A rack (602) is slidably connected to the inner walls on both sides of the stroke groove (5).

3. A device for preventing edge lifting of a press frame of a hot press according to claim 2, wherein A motor (604) is fixedly installed on the bottom outer wall of the support plate (4), and the output end of the motor (604) is fixedly connected to the outer wall of one side of the gear (603).

4. A device for preventing edge lifting of a press frame of a hot press according to claim 1, wherein The inner wall of the movable frame (601) is connected to a plurality of sleeve rods (608), one end of the sleeve rod (608) is connected to a rotating frame (607), and an extrusion roller (610) is rotatably connected inside the rotating frame (607). The outer wall of the extrusion roller (610) is in contact with the top outer wall of the contour strip (606).

5. A device for preventing edge lifting of a press frame of a hot press according to claim 4, wherein A spring (609) is sleeved on the outside of the sleeve rod (608), and the two ends of the spring (609) are fixedly connected to the inner wall of the movable frame (601) and the top outer wall of the rotating frame (607) respectively.

6. A device for preventing edge lifting of a press frame of a hot press according to claim 1, wherein The bottom of the operating table (1) is connected to multiple rotating seats (704). A hydraulic rod (705) is rotatably connected inside the rotating seat (704). One end of the hydraulic rod (705) is rotatably connected to a drive block (703). One end of the drive shaft (702) passes through the drive block (703).

7. A device for preventing edge lifting of a press frame of a hot press according to claim 1, wherein The outer wall of one side of the extrusion rod (707) is connected to a plurality of buffer blocks (708), and the outer wall of one side of the buffer block (708) is in contact with the top outer wall of the operating table (1).

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