Heating mechanism for a high-temperature resistant high-pressure forming mold for HPL (High-Pressure Laminate) board

Abstract

This utility model discloses a heating mechanism for a high-temperature resistant high-pressure forming mold of HPL (High-Pressure Laminate) board, belonging to the field of HPL processing technology. The heating mechanism includes a mounting plate with assembly holes on one pair of sides. A first pipe extending to the outside of the bottom surface of the mounting plate is connected to the other pair of sides of the mounting plate. A connecting block is installed at the end of the first pipe, and a pressure plate is installed at the bottom of the connecting block. An installation cavity is formed inside the pressure plate, and a pressure-bearing frame is installed inside the installation cavity. A top plate is installed on the top of the pressure plate. This utility model achieves the required processing temperature by using a hollow plate combined with high-temperature water. Furthermore, the addition of a push rod and spring combination provides sufficient pressure during processing to ensure processing results. The applied pressure also increases the internal water pressure, thereby improving the heat transfer efficiency of the hot water and ensuring the heating temperature.

Description

Technical Field

[0001] This utility model belongs to the field of HPL processing technology, specifically relating to a heating mechanism for a high-temperature resistant, high-pressure forming mold for HPL. Background Technology

[0002] HPL (High-Pressure Laminate) is a composite material made by laminating decorative colored paper impregnated with melamine resin, layering multiple layers of black or brown kraft paper impregnated with phenolic or urea-formaldehyde resin, and then pressing them together under high temperature and pressure with a steel plate. It has a smooth and hard surface and is wear-resistant, fire-resistant, and heat-resistant. It is generally made by impregnating recycled paper such as kraft paper with adhesives, laminating them together, and then preparing them under high temperature and pressure. It features high strength, high hardness, acid and alkali resistance, moisture resistance, impact resistance, and good sound insulation performance, and is widely used in partitions, kitchen and bathroom panels, medical tables, laboratory tables, medicine cabinets, and other applications, with continuously expanding market demand. However, traditional manufacturing methods have drawbacks such as complex processes, high paper consumption, low efficiency, and high energy consumption. To improve the process, related reports suggest that the technology uses multi-layer thin fiberboard and impregnated paper to be cross-laminated and hot-pressed, replacing a large amount of recycled paper with fiberboard, thus simplifying the traditional process. In addition, other existing technologies use up to 40% adhesive to apply to plant fibers through high-speed spraying, add dyes, and then laminate them under high temperature and high pressure to produce HPL (High-Pressure Laminate) boards.

[0003] During the pressing process, the steel plate used for processing needs to be heated. If the steel plate is heated directly, the temperature of the heating point is usually high, which can lead to uneven heat distribution throughout the steel plate. During the pressing process, high-temperature areas may damage the processed material and affect the finished product. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a heating mechanism for a high-temperature resistant high-pressure forming mold for HPL (High-Pressure Laminate) boards.

[0005] The technical solution adopted to solve the above technical problems is: a heating mechanism for a high-temperature resistant high-pressure forming mold of HPL (High-Pressure Laminate) board, including a mounting plate. A pair of sides of the mounting plate are provided with assembly holes. A first pipe extending to the outside of the bottom surface of the mounting plate is connected to another pair of sides of the mounting plate. A connecting block is installed at the end of the first pipe. A pressure plate is installed at the bottom of the connecting block. An installation cavity is opened inside the pressure plate. A pressure-bearing frame is installed inside the installation cavity. A top plate is installed on the top of the pressure plate. A first push rod is installed on the top of the top plate. A spring is sleeved on the top of the first push rod. A mounting plate is installed on the top of the spring. A push plate is installed on the top of the mounting plate. A second push rod is installed on the top of the push plate.

[0006] Furthermore, there are a total of six first pipes and connecting blocks, which are divided into two groups. The two groups of first pipes and connecting blocks are symmetrically arranged on the mounting plate and the pressure plate. Through the above-mentioned arrangement of the number of components used, an inlet and an outlet are formed to realize the circulation of heating water.

[0007] Furthermore, there are multiple first push rods, all of which penetrate the mounting plate. The push rod water volume is set to match the number of top plates. Because they penetrate the mounting plate, after the first push rod moves, combined with the number and distribution of top plates, the pressure distribution becomes more uniform, resulting in a better processing effect.

[0008] Furthermore, the top of the mounting plate is integrally formed with multiple spaced-apart arches, and there are multiple top plates evenly arranged between the multiple arches on the top of the mounting plate. The arches can increase the internal capacity of the pressure plate, and the arrangement of multiple top plates also makes the pressure distribution more uniform.

[0009] Furthermore, a mounting plate adapted to the spring is installed on the top side of the first push rod. The mounting plate provides a contact surface, allowing the spring to be compressed better, and the spring force after compression is used to further improve the pressing effect.

[0010] Furthermore, the connecting block has a through hole inside that communicates with the mounting cavity and the first pipe, so that the injected hot water can flow through the mounting cavity to form a continuous flow.

[0011] The beneficial effects of this utility model are as follows: This utility model uses a cavity plate combined with high-temperature water to achieve the required processing temperature, and the cavity filled with hot water makes the overall temperature of the plate surface more uniform. In addition, the combination of the added push rod and spring provides sufficient pressure during processing to ensure the processing effect. Furthermore, the applied pressure is used to increase the internal water pressure, which in turn increases the heat transfer efficiency of the hot water and ensures the heating temperature. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of the present invention;

[0013] Figure 2 This is a front view of the structure of this utility model;

[0014] Figure 3 This is a side view of the structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the pressure plate of this utility model.

[0016] Reference numerals: 1. Mounting plate; 2. Assembly hole; 3. First pipe; 4. Connecting block; 5. Pressure plate; 6. Mounting cavity; 7. Pressure-bearing frame; 8. Top plate; 9. First push rod; 10. Spring; 11. Connecting plate; 12. Push plate; 13. Second push rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] like Figures 1 to 4 As shown, the heating mechanism of a high-temperature resistant HPL high-pressure forming mold in this embodiment includes a mounting plate 1. A pair of sides of the mounting plate 1 have mounting holes 2, each with a threaded interior. The heating mechanism can be mounted to a processing pressure device using bolts. A second push rod 13 is brought into contact with the power end of the device, allowing the power end to drive a connecting plate 11 to move via the second push rod 13. Another pair of sides of the mounting plate 1 are connected to a first pipe 3 extending to the outside of the bottom surface of the mounting plate 1. A connecting block 4 is installed at the end of the first pipe 3. The connecting block 4 has a through hole communicating with the mounting cavity 6 and the first pipe 3. A pressure plate 5 is installed at the bottom of the connecting block 4. There are six first pipes 3 and six connecting blocks 4, divided into two groups. The two groups of first pipes 3 and connecting blocks... Connecting blocks 4 are symmetrically arranged on mounting plate 1 and pressure plate 5. The pressure plate 5 has an installation cavity 6 inside. As described above, a passage is formed between the pipe, connecting blocks 4 and pressure plate 5. As shown in the figure, the first pipes 3 on both sides are water inlets. When hot water for heating is injected into the installation cavity 6, it fills the cavity and then flows out through the first pipe 3 in the middle. In this way, the hot water fills the interior of the installation cavity 6, so that the pressure surface of the pressure plate 5 is heated evenly, avoiding uneven heating of the pressure plate 5 and affecting the processing. Since the number of water outlets is less than the number of water inlets, the water inlet is greater than the water outlet. By adjusting the water inlet rate and the water outlet rate, a certain water pressure can be maintained in the cavity. Under pressure, the heat conduction efficiency of high temperature water will be improved because the interaction between molecules is enhanced, and heat transfer is faster.

[0019] like Figure 4As shown, a pressure-bearing frame 7 is installed inside the mounting cavity 6. The function of the pressure-bearing frame 7 is to ensure the overall strength of the pressure plate 5 and to prevent the pressure plate 5 from being severely deformed under the combined action of water pressure and the top plate 8. Therefore, there are multiple pressure-bearing frames 7 arranged inside the mounting cavity 6. A top plate 8 is installed on the top of the pressure plate 5. The top of the mounting plate 1 is integrally formed with multiple mutually spaced arches. There are multiple top plates 8 and they are evenly arranged between the multiple arches on the top of the mounting plate 1. The arches are integrally formed on the pressure plate 5, thereby expanding the space of the mounting cavity 6. The position of the pressure-bearing frame 7 matches the position of the top plate 8. As can be seen from the figure, the distribution position of the top plate 8 and the shape of the pressure-bearing frame 7 are shown. The pressure-bearing frame 7 is located below the position of the top plate 8 to bear the pressure.

[0020] like Figure 1 As shown, a first push rod 9 is installed on the top of the top plate 8. There are multiple first push rods 9, all of which penetrate the mounting plate 1. Since the first push rod 9 penetrates the mounting plate 1, it can slide freely. Under the action of the connecting plate 11, the first push rod 9 can be driven to move. A spring 10 is sleeved on the top of the first push rod 9. An assembly plate adapted to the spring 10 is installed on the top side of the first push rod 9. Due to the use of the assembly plate, the spring 10 can be compressed during the movement of the connecting plate 11. With the help of the elastic force of the spring 10, the plate to be processed is further pressured in the subsequent process to improve the processing effect. The connecting plate 11 is installed on the top of the spring 10. A push plate 12 is installed on the top of the connecting plate 11. A second push rod 13 is installed on the top of the push plate 12.

[0021] The working principle of this embodiment is as follows: When the heating mechanism is working, it is installed onto the processing equipment through the assembly hole 2 on the side of the mounting plate 1, and hot water for heating is connected through the first pipe 3. Due to the number of pipes, six pipes are distributed on both sides of the mounting plate 1. When hot water is introduced, water enters through the pipes on both sides and exits through the pipe in the middle. The hot water heats the pressure plate 5. After the pressure plate 5 reaches the required temperature, the processing equipment pushes the connecting plate 11 to move through the second push rod 13. When the connecting plate 11 moves, the spring 1... While compressing, the first push rod 9 is also moved, which in turn moves the pressure plate 5 to apply pressure to the Beite board. Because the number of inlet pipes is greater than the number of outlet pipes, the water flow is slower, increasing the water pressure in the mounting cavity 6. This, combined with the pressure of the top plate 8 on the mounting plate 1 and the elastic force of the spring 10, further increases the water pressure inside the mounting cavity 6, improving heat transfer efficiency and ensuring the processing effect after pressing. Furthermore, the cavity filled with hot water makes the overall temperature of the board surface more uniform, preventing uneven temperature distribution from affecting the processing effect. The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model.

Claims

1. A heating mechanism for a high-temperature resistant high-pressure forming mold for HPL (High-Pressure Laminate) board, comprising a mounting plate (1), characterized in that: The mounting plate (1) has mounting holes (2) on one pair of sides. The mounting plate (1) has a first pipe (3) extending to the outside of the bottom surface of the mounting plate (1) on the other pair of sides. A connecting block (4) is installed at the end of the first pipe (3). A pressure plate (5) is installed at the bottom of the connecting block (4). An installation cavity (6) is opened inside the pressure plate (5). A pressure-bearing frame (7) is installed inside the installation cavity (6). A top plate (8) is installed on the top of the pressure plate (5). A first push rod (9) is installed on the top of the top plate (8). A spring (10) is sleeved on the top of the first push rod (9). A connecting plate (11) is installed on the top of the spring (10). A push plate (12) is installed on the top of the connecting plate (11). A second push rod (13) is installed on the top of the push plate (12).

2. The heating mechanism of the high-temperature resistant HPL high-pressure forming mold according to claim 1, characterized in that: There are six of the first pipes (3) and connecting blocks (4), and they are divided into two groups. The two groups of the first pipes (3) and connecting blocks (4) are symmetrically arranged on the mounting plate (1) and the pressure plate (5).

3. The heating mechanism of the high-temperature resistant HPL high-pressure forming mold according to claim 1, characterized in that: The number of the first push rods (9) is multiple and all of them penetrate the mounting plate (1).

4. The heating mechanism of the high-temperature resistant HPL high-pressure forming mold according to claim 1, characterized in that: The top of the mounting plate (1) is integrally formed with multiple mutually spaced arches, and the top plate (8) is multiple and evenly arranged between the multiple arches on the top of the mounting plate (1).

5. The heating mechanism of the high-temperature resistant HPL high-pressure forming mold according to claim 1, characterized in that: The first push rod (9) has a mounting plate adapted to the spring (10) installed on its top side.

6. The heating mechanism of the high-temperature resistant HPL high-pressure forming mold according to claim 1, characterized in that: The connecting block (4) has a through hole inside that communicates with the mounting cavity (6) and the first pipe (3).

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