Vacuum efficiency improving system of high-temperature vacuum laminating machine

Abstract

The utility model relates to a vacuum efficiency improving system of a high-temperature vacuum pressing machine, which comprises the high-temperature vacuum pressing machine and a vacuum pump set, a vacuum buffer tank is arranged between the high-temperature vacuum pressing machine and the vacuum pump set, the vacuum buffer tank comprises a tank body, one side of the tank body is provided with a gas path inlet, and the other side of the tank body is provided with a gas path outlet. The gas path inlet is connected with an extraction opening of the high-temperature vacuum pressing machine through a first gas inlet pipeline, and the gas path outlet is connected with a gas inlet of the vacuum pump set through a second gas inlet pipeline; a liquid condenser is arranged in the tank body, a liquid inlet of the liquid condenser is located on the outer side of the tank body and close to the bottom, and a liquid outlet of the liquid condenser is located on the outer side of the tank body and close to the top. The vacuum efficiency improving system of the high-temperature vacuum laminating machine can reduce the starting operation times of the vacuum pump, improve the production efficiency, save energy and reduce consumption; water molecules and microparticles entering a vacuum pump cavity can be reduced, vacuum pump oil is effectively prevented from being emulsified and deteriorated due to water vapor, and the working efficiency of the vacuum pump is improved.

Description

Technical Field

[0001] This utility model relates to vacuuming in a high-temperature vacuum press, and more particularly to a vacuum efficiency enhancement system for a high-temperature vacuum press. Background Technology

[0002] A high-temperature vacuum press is a device that presses multi-layer products together under vacuum conditions. During operation, the vacuum system expels the air from the press chamber, making its internal space close to a vacuum state. This device is widely used in the copper clad laminate industry.

[0003] In the vacuum system of a high-temperature vacuum press, the vacuum pump is an indispensable component. However, existing vacuum pump devices are prone to wear and the vacuum is not stable enough. The gas in the chamber of the high-temperature vacuum press contains dust and other solid particles after heating. When it is extracted by the vacuum pump, it can easily enter the vacuum pump. Furthermore, the vacuum pump and the high-temperature vacuum press are connected by pipes. The heated gas will cool down during the pumping process and produce some condensation. This moisture passes through the vacuum pump, causing the vacuum oil in the vacuum pump to be contaminated by moisture and microparticles. This reduces the working efficiency of the vacuum pump and leads to poor airflow between the copper foil and the prepreg layer and within the fiberglass cloth bundle during the hot pressing of the copper-clad laminate. As a result, the high-temperature vacuum press chamber cannot reach the required vacuum value in a short time, affecting product processing. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a vacuum efficiency improvement system for a high-temperature vacuum press that can improve the working efficiency of a vacuum pump.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A vacuum efficiency enhancement system for a high-temperature vacuum press includes a high-temperature vacuum press and a vacuum pump group consisting of several vacuum pumps. The vacuum pump group is connected to the interior of the high-temperature vacuum press's cabin via pipelines. A vacuum buffer tank is provided between the high-temperature vacuum press and the vacuum pump group. The vacuum buffer tank includes a tank body, with an inlet on one side and an outlet on the other side. The outlet is higher than the inlet. The inlet is connected to the exhaust port of the high-temperature vacuum press via a first inlet pipe, and the outlet is connected to the inlet of the vacuum pump group via a second inlet pipe. A liquid condenser is provided inside the tank body. The liquid condenser's inlet is located on the outside of the tank body near the bottom, and its outlet is located on the outside of the tank body near the top.

[0007] Furthermore, the top of the tank is provided with an opening that connects the inside and outside, a sealing cover is provided on the opening, and a sealing ring is provided between the sealing cover and the opening.

[0008] Furthermore, the tank body is provided with several stainless steel wire balls.

[0009] Furthermore, a support base is provided at the bottom of the tank, and a drain hole is provided at the center of the bottom of the tank. A drain pipe is fixedly connected to the drain hole. The drain pipe passes through the bottom of the support base downward and extends outward. A manual valve is provided on the drain pipe.

[0010] Furthermore, an air filter is provided at the air inlet of the vacuum pump unit.

[0011] Furthermore, a moisture filter is installed on the second air intake pipe.

[0012] Furthermore, a steel platform is provided on one side of the high-temperature vacuum press, and the vacuum pump unit is fixedly installed on the top of the steel platform, with its height higher than the top of the high-temperature vacuum press.

[0013] Furthermore, the liquid condenser is a spiral plate condenser or a shell-and-tube condenser.

[0014] Compared with the prior art, the advantages of this utility model are: this high-temperature vacuum pressing machine vacuum efficiency improvement system can reduce the number of vacuum pump start-ups, improve production efficiency, and save energy and reduce consumption; it can reduce the entry of water molecules and microparticles into the vacuum pump cavity, effectively prevent the vacuum pump oil from deteriorating due to water vapor emulsification, improve the vacuum oil lubrication of the vacuum pump rotor blades and stator, making the operation smoother, and making the exhaust between the copper foil and the semi-cured sheet layers and inside the fiberglass cloth bundle more smooth during the hot pressing of the copper-clad laminate, making management and maintenance convenient, and improving the working efficiency of the vacuum pump. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the system principle of a high-temperature vacuum press vacuum efficiency improvement system;

[0017] Figure 2 This is a side structural cross-sectional view of a vacuum buffer tank in a high-temperature vacuum press vacuum efficiency enhancement system of this utility model.

[0018] In the diagram: 1. High-temperature vacuum press; 11. First air inlet pipe; 2. Vacuum pump unit; 21. Air inlet; 22. Air filter; 3. Vacuum buffer tank; 31. Tank body; 311. Air inlet; 312. Air outlet; 32. Support base; 33. Sealing cover; 331. Sealing ring; 34. Liquid condenser; 341. Liquid inlet; 342. Liquid outlet; 35. Stainless steel wire ball; 36. Drain pipe; 361. Manual valve; 4. Steel structure platform; 5. Second air inlet pipe; 6. Moisture filter. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected 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. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships commonly used when the product of the present invention is in use, they are only for the convenience of describing the present 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 the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0021] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure or component must be completely horizontal, but can be slightly tilted.

[0022] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0023] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Example

[0025] Please refer to the instruction manual attached. Figure 1 and 2 As shown, the instruction manual is attached. Figure 1 and 2The diagram illustrates a vacuum efficiency enhancement system for a high-temperature vacuum press according to this invention. This system can improve the vacuuming efficiency inside the high-temperature vacuum press 1. The system includes the high-temperature vacuum press 1 and a vacuum pump group 2 composed of several vacuum pumps. The vacuum pumps are connected together via pipelines to form the vacuum pump group 2. The vacuum pump group 2 is equipped with an air inlet 21, which is connected to the interior of the high-temperature vacuum press 1's chamber via a pipeline, allowing for the extraction of gas from the press 1. It should be noted that a steel platform 4 is installed on one side of the high-temperature vacuum press 1, and the vacuum pump group 2 is fixedly installed on the top of the steel platform 4 at a height of [missing information]. At the top of the high-temperature vacuum press 1, the connected pipes can be positioned upwards, creating a chimney effect to facilitate gas flow. To extend the service life of the vacuum pump and ensure its working efficiency and stability, a vacuum buffer tank 3 is installed between the high-temperature vacuum press 1 and the vacuum pump assembly 2. The vacuum buffer tank 3 includes a tank body 31, and a support base 32 is provided at the bottom of the tank body 31, providing a height gap between the bottom of the tank body 31 and the mounting surface. One side of the tank body 31 has an internally and externally connected gas inlet 311, and the other side has an internally and externally connected gas outlet 312. The gas outlet 312 is located near the top of the tank body 31, and the gas inlet 311 is located near... Located near the bottom of the tank 31, the gas outlet 312 is higher than the gas inlet 311, facilitating the upward discharge and cooling of gas entering from the gas inlet 311. Correspondingly, the gas inlet 311 is connected to the suction port of the high-temperature vacuum press 1 via a first inlet pipe 11, and the gas outlet 312 is connected to the inlet 21 of the vacuum pump unit 2 via a second inlet pipe 5. Gas from the high-temperature vacuum press 1 enters the tank 31 through the first inlet pipe 11 and exits through the second inlet pipe 5. To cool the heated gas entering the tank 31, a liquid condenser 34 is installed inside the tank 31. The liquid condenser 34 is a spiral... The condenser is a plate condenser or a tube condenser. After the gas enters the tank 31 through the gas inlet 311, it extends upward and passes through the liquid condenser 34 for cooling. To ensure the cooling effect, a number of stainless steel balls 35 are installed inside the tank 31. The stainless steel balls 35 are plugged between the gaps of the liquid condenser 34 to accelerate the cooling of the gas and gas-liquid separation inside the tank 31. The liquid inlet 341 of the liquid condenser 34 is located on the outside of the tank 31 near the bottom, and the liquid outlet 342 is located on the outside of the tank 31 near the top. The condensate enters through the liquid inlet 341 and exits through the liquid outlet 342, cooling the hot gas flowing through the tank 31.To facilitate internal maintenance of the tank 31 and the disassembly and assembly of the liquid condenser 34 and stainless steel ball 35, the top of the tank 31 has an opening that connects the inside and outside. A sealing cover 33 is installed on the opening, and the sealing cover 33 is fixedly connected to the opening by a quick-release clamp. To ensure airtightness, a sealing ring 331 is installed between the sealing cover 33 and the opening. To facilitate the discharge of condensate after gas-liquid separation inside the tank 31, a drain hole 313 is provided at the center of the bottom of the tank 31. A drain pipe 36 is fixedly connected to the drain hole 313, and the drain pipe 36 penetrates downward through the bottom of the supporting base 32. The drain pipe 36 extends outwards and is equipped with a manual valve 361, which controls the opening and closing of the drain pipe 36. To filter the gas in the second intake pipe 5 and remove dust and other fine particles, an air filter 22 is installed at the air inlet 21 of the vacuum pump assembly 2. To filter moisture from the cooled gas in the second intake pipe 5 and prevent it from entering the vacuum pump, a moisture filter 22 is installed on the second intake pipe 5. The moisture filter 6 and the air filter 22 can filter out moisture, dust, and other particles in the gas, preventing contamination of the vacuum oil inside the vacuum pump.

[0026] During operation, vacuum pump unit 2 starts to draw a vacuum. Hot gas in high-temperature vacuum press 1 enters tank 31 through first inlet pipe 11 from gas inlet 311. The gas in tank 31 is discharged through gas outlet 312. As the gas rises from the bottom of the inner cavity of tank 31, it passes through liquid condenser 34 and stainless steel balls 35. Liquid condenser 34 and stainless steel balls 35 can cool the hot gas. The condensate generated during cooling can be discharged from drain pipe 36 at the bottom of tank 31. The cooled gas is input into second inlet pipe 5 through gas outlet 312. The gas in second inlet pipe 5 becomes drier after being filtered by moisture filter 6. After being filtered by air filter 22, it can effectively remove dust and other solid microparticles in the gas, improve the cleanliness of the gas, and ensure that the filtered gas will not be contaminated by dust, moisture and other microparticles when passing through the vacuum pump. This improves the working efficiency and service life of the vacuum pump, reduces the downtime of the vacuum pump, and ensures the production efficiency and processing quality of high-temperature vacuum press 1.

[0027] This high-temperature vacuum pressing machine vacuum efficiency enhancement system can reduce the number of vacuum pump starts and operations, improve production efficiency, and save energy and reduce consumption. It can reduce the entry of water molecules and microparticles into the vacuum pump chamber, effectively prevent the vacuum pump oil from deteriorating due to water vapor emulsification, improve the vacuum oil lubrication of the vacuum pump rotor blades and stator, making the operation smoother. It also makes the exhaust between the copper foil and the semi-cured sheet layers and inside the fiberglass cloth bundle more smooth during the hot pressing of copper-clad laminates. It is easy to manage and maintain, improves the working efficiency of the vacuum pump, and the vacuum pump can quickly reach the required vacuum value of 30 Torr within 5 minutes, meeting the performance requirements of various copper-clad laminates.

[0028] It should be emphasized that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-temperature vacuum press vacuum performance improvement system, comprising a high-temperature vacuum press (1) and a vacuum pump set (2) composed of several vacuum pumps, the vacuum pump set (2) being connected with the inside of the cabin of the high-temperature vacuum press (1) through a pipeline, characterized in that: The high-temperature vacuum press (1) and the vacuum pump group (2) are provided with a vacuum buffer tank (3), the vacuum buffer tank (3) includes a tank body (31), one side of the tank body (31) is provided with an air inlet (311) connected inside and outside, the other side is provided with an air outlet (312) connected inside and outside, the air outlet (312) is higher than the air inlet (311), the air inlet (311) is connected together with the air outlet of the high-temperature vacuum press (1) through the first air inlet pipeline (11), the air outlet (312) is connected together with the air inlet (21) of the vacuum pump group (2) through the second air inlet pipeline (5); The tank body (31) is provided with a liquid condenser (34), the liquid inlet (341) of the liquid condenser (34) is located on the outside of the tank body (31) near the bottom, and the liquid outlet (342) is located on the outside of the tank body (31) near the top. ​ 2. The system for improving the vacuum performance of a high-temperature vacuum press according to claim 1, wherein: The top of the tank body (31) is provided with an opening connected inside and outside, the opening is provided with a sealing cover (33), and a sealing ring (331) is arranged between the sealing cover (33) and the opening.

3. The system of claim 1, wherein: The tank body (31) is provided with a plurality of stainless steel wire balls (35).

4. The system of claim 1, wherein: The bottom of the tank body (31) is provided with a supporting base (32), and the center of the bottom of the tank body (31) is provided with a drainage hole (313), the drainage hole (313) is provided with a drainage pipe (36) fixedly connected therewith, the drainage pipe (36) penetrates through the bottom of the supporting base (32) downward and extends outward, and a manual valve (361) is arranged on the drainage pipe (36).

5. The system of claim 1, wherein: The air inlet (21) of the vacuum pump group (2) is provided with an air filter (22).

6. The system of claim 1, wherein: The second air inlet pipeline (5) is provided with a moisture filter.

7. The system of claim 1, wherein: The high-temperature vacuum press (1) is provided with a steel structure platform (4) on one side, and the vacuum pump group (2) is fixedly installed on the top of the steel structure platform (4), and the height of the vacuum pump group (2) is higher than that of the high-temperature vacuum press (1).

8. The system of claim 1, wherein: The liquid condenser (34) is a spiral plate condenser or a tube condenser.

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