Reaction kettle for synthesizing VOC (volatile organic compound)-free hole plugging resin for printed circuit board

Abstract

The utility model discloses a reaction kettle for synthesizing VOC (Volatile Organic Compounds)-free plug hole resin for a printed circuit board, which belongs to the technical field of reaction kettles and comprises a kettle body, the top of the kettle body is provided with a feed port, the inner bottom wall of the kettle body is hemispherical, and the inner bottom wall of the kettle body is provided with a discharge port; the driving motor is mounted at the top of the kettle body; the stirring rod is connected to the output end of the driving motor through a coupler; the arc-shaped stirring paddle is arranged in the kettle body, and the arc-shaped stirring paddle is fixedly connected to the lower end part of the stirring rod; the arc-shaped air bag is installed on the arc-shaped stirring paddle, the vacuum pump is used for inflating the arc-shaped air bag to enable the arc-shaped air bag to be expanded, the arc-shaped air bag is attached to the inner bottom wall of the kettle body after being expanded, the driving motor rotates to drive the stirring rod to rotate, and then the arc-shaped stirring paddle and the arc-shaped air bag are driven to scrape residues in the kettle body and discharge the residues from the discharge port. The overall structural design is simple and ingenious, and the manufacturing cost of the reaction kettle is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of reaction vessel technology, and in particular relates to a reaction vessel for synthesizing VOC-free pore-sealing resin for printed circuit boards. Background Technology

[0002] Synthetic printed circuit boards (Synthetic PCBs) are printed circuit boards manufactured using special materials or processes. They are typically used in electronic devices with high performance requirements. VOC-free via-filling resin is an environmentally friendly filler material specifically developed for the needs of printed circuit board manufacturing. Its core feature is that it does not release volatile organic compounds during production and use, while meeting the requirements for high-performance via filling.

[0003] Chinese Patent (CN202122067569.8) discloses a water-based polyurethane resin production reactor that is easy to clean, comprising: a reactor body and a stirring paddle. The upper end of the reactor body is connected to a top cover by snap fasteners on both sides. A stirring mechanism is provided at the upper end of the reactor body. The stirring paddle is rotatably connected to the bottom end of the reactor body through the stirring mechanism. The stirring mechanism includes a connecting cylinder and a stirring rod. A lifting mechanism is provided inside the connecting cylinder.

[0004] Currently, existing reactors use a lifting mechanism to control the raising and lowering of the stirring paddle, which in turn allows the scraper on the stirring paddle to remove residue from the inner wall of the reactor. This makes the structure of the stirring device cumbersome and increases the manufacturing cost of the reactor. Utility Model Content

[0005] The purpose of this invention is to provide a reaction vessel for synthesizing VOC-free pore-sealing resin for printed circuit boards in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a reaction vessel for synthesizing VOC-free pore-sealing resin for printed circuit boards, comprising:

[0007] The vessel body has a feed inlet at the top, the inner bottom wall of the vessel body is hemispherical, and the inner bottom wall of the vessel body has a discharge outlet.

[0008] A drive motor is mounted on top of the vessel body;

[0009] A stirring rod, which is connected to the output end of the drive motor via a coupling;

[0010] An arc-shaped stirring paddle is disposed inside the vessel body and is fixedly connected to the lower end of the stirring rod. An installation groove is provided on the surface of the arc-shaped stirring paddle.

[0011] An arc-shaped airbag is fixedly connected within the mounting groove;

[0012] A vacuum pump is located outside the vessel body and is fixedly connected to the stirring rod. The vacuum pump is connected to the arc-shaped air bladder.

[0013] As a further description of the above technical solution:

[0014] An airflow channel is provided inside the stirring rod, and an air nozzle is provided on the arc-shaped airbag, with the air nozzle connected to the airflow channel.

[0015] As a further description of the above technical solution:

[0016] The vessel body is fixedly connected to a support base on the outside.

[0017] As a further description of the above technical solution:

[0018] The stirring rod is equipped with multiple auxiliary stirring blades, which are disposed inside the reactor.

[0019] As a further description of the above technical solution:

[0020] The drive motor is connected to the vessel body via a fixed base.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] In this invention, an arc-shaped airbag is installed on an arc-shaped stirring paddle. A vacuum pump is used to inflate the arc-shaped airbag, causing it to expand. After expansion, the arc-shaped airbag adheres to the inner bottom wall of the reactor body. The drive motor rotates, which in turn rotates the stirring rod, thereby driving the arc-shaped stirring paddle and the arc-shaped airbag to scrape off the residue inside the reactor body and discharge it from the outlet. The overall structure design is simple and ingenious, reducing the manufacturing cost of the reactor. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a reactor for synthesizing a VOC-free via-sealing resin for printed circuit boards.

[0024] Figure 2 An exploded view of a reactor for synthesizing a VOC-free via-sealing resin for printed circuit boards.

[0025] Figure 3 This is a cross-sectional view of a reactor used for synthesizing a VOC-free via-sealing resin for printed circuit boards.

[0026] Figure 4 for Figure 3 The usage status is shown in the diagram.

[0027] Legend:

[0028] 1. Kettle body; 2. Inlet; 3. Outlet; 4. Drive motor; 5. Stirring rod; 6. Arc-shaped stirring paddle; 7. Mounting groove; 8. Arc-shaped airbag; 9. Vacuum pump; 10. Airflow channel; 11. Air nozzle; 12. Support base; 13. Auxiliary stirring paddle; 14. Fixing base. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a reaction vessel for synthesizing VOC-free pore-sealing resin for printed circuit boards, comprising:

[0031] The vessel body 1 has a feed inlet 2 at its top, the inner bottom wall of the vessel body 1 is hemispherical, and the inner bottom wall of the vessel body 1 has a discharge outlet 3.

[0032] Drive motor 4 is mounted on top of the vessel body 1;

[0033] The stirring rod 5 is connected to the output end of the drive motor 4 via a coupling;

[0034] An arc-shaped stirring paddle 6 is disposed inside the vessel body 1, and the arc-shaped stirring paddle 6 is fixedly connected to the lower end of the stirring rod 5. An installation groove 7 is provided on the surface of the arc-shaped stirring paddle 6.

[0035] An arc-shaped airbag 8 is fixedly connected within the mounting groove 7;

[0036] A vacuum pump 9 is located outside the vessel body 1 and is fixedly connected to the stirring rod 5. The vacuum pump 9 is connected to the arc-shaped air bag 8.

[0037] An airflow channel 10 is provided inside the stirring rod 5, and an air nozzle 11 is provided on the arc-shaped air bag 8. The air nozzle 11 is connected to the airflow channel 10 to ensure that the vacuum pump 9 can be smoothly connected to the arc-shaped air bag 8.

[0038] The vessel body 1 is fixedly connected to the outside of a support base 12 for structural support of the vessel body 1;

[0039] The stirring rod 5 is provided with a plurality of auxiliary stirring paddles 13, which are disposed inside the reactor body 1 to ensure uniform resin mixing.

[0040] The drive motor 4 is connected to the vessel body 1 via a fixed base 14, which facilitates the assembly of the reactor.

[0041] Working principle: The vacuum pump 9 inflates the arc-shaped air bag 8, causing it to expand. After the arc-shaped air bag 8 expands, it adheres to the inner bottom wall of the vessel body 1. The drive motor 4 rotates, which in turn drives the stirring rod 5 to rotate, thereby driving the arc-shaped stirring paddle 6 and the arc-shaped air bag 8 to scrape off the residue in the vessel body 1 and discharge it from the outlet 3.

[0042] 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 reaction vessel for synthesizing VOC-free via-sealing resin for printed circuit boards, characterized in that: include: The vessel body (1) has a feed inlet (2) at its top. The inner bottom wall of the vessel body (1) is hemispherical, and the inner bottom wall of the vessel body (1) has a discharge outlet (3). A drive motor (4) is mounted on top of the vessel body (1); A stirring rod (5) is connected to the output end of the drive motor (4) via a coupling; An arc-shaped stirring paddle (6) is disposed inside the vessel body (1), and the arc-shaped stirring paddle (6) is fixedly connected to the lower end of the stirring rod (5). An installation groove (7) is provided on the surface of the arc-shaped stirring paddle (6). An arc-shaped airbag (8) is fixedly connected in the mounting groove (7); A vacuum pump (9) is located outside the vessel body (1) and is fixedly connected to the stirring rod (5). The vacuum pump (9) is connected to the arc-shaped air bag (8).

2. The reactor for synthesizing VOC-free via-sealing resin for printed circuit boards according to claim 1, characterized in that, An airflow channel (10) is provided inside the stirring rod (5), and an air nozzle (11) is provided on the arc-shaped airbag (8), with the air nozzle (11) connected to the airflow channel (10).

3. The reactor for synthesizing VOC-free via-sealing resin for printed circuit boards according to claim 1, characterized in that, The vessel body (1) is externally fixedly connected to a support base (12).

4. The reactor for synthesizing VOC-free via-sealing resin for printed circuit boards according to claim 1, characterized in that, The stirring rod (5) is provided with a plurality of auxiliary stirring paddles (13), and the plurality of auxiliary stirring paddles (13) are disposed inside the vessel body (1).

5. The reactor for synthesizing VOC-free via-sealing resin for printed circuit boards according to claim 1, characterized in that, The drive motor (4) is connected to the vessel body (1) via a fixed base (14).

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