Epoxy resin plate preparation device and method

Abstract

The invention relates to the technical field of epoxy resin plate preparation, in particular to an epoxy resin plate preparation device and method.The device comprises a mixing container and a preparation mechanism arranged on the mixing container, and the preparation mechanism comprises a supporting assembly running on the mixing container; a motor and a speed reducer connected with the output end of the motor are arranged on the supporting assembly, the supporting assembly drives the motor and the speed reducer to translate at a constant speed in the length direction of the supporting assembly, a driving shaft is connected to the end, away from the motor, of the speed reducer, the driving shaft is vertically arranged, and a plurality of mixing blades are fixed in the circumferential direction of the driving shaft; the mixing container comprises a containing tank and a measuring pipe arranged on one side of the containing tank. According to the epoxy resin plate preparation device, the problem that bubbles are accumulated in the containing tank is effectively solved, needle holes and pits are eliminated, the attractiveness and smoothness of a product are improved, the strength of an epoxy resin plate finished product is improved, the bubble discharging condition is conveniently judged, and actual work is more convenient.

Description

Technical Field

[0001] This invention relates to the field of epoxy resin board preparation technology, specifically to an epoxy resin board preparation apparatus and method. Background Technology

[0002] Epoxy resin board is a sheet-like material made primarily of epoxy resin, also known as insulating board, epoxy board, or 3240 epoxy board. It is a composite material made by impregnating electrical glass cloth with epoxy resin, followed by drying and hot pressing. It possesses characteristics such as strong adhesion and low curing shrinkage (less than 2%). Epoxy resin boards are widely used in the electronics and electrical appliance fields, often as PCB insulating substrates, FPC reinforcing boards, and pads for computer drilling. Its high insulation and moisture resistance make it suitable for insulating structural components in motors and electrical equipment, such as switches and transformers. Furthermore, epoxy resin plays an important role in semiconductor packaging, protecting electronic components from moisture and mechanical damage. During the preparation of epoxy resin boards, epoxy resin and a curing agent need to be stirred and mixed in a preparation device. Epoxy resin is a high-molecular polymer containing two or more epoxy groups in its molecule, belonging to thermosetting resins. It forms a three-dimensional network structure through reaction with the curing agent, possessing excellent mechanical properties, electrical insulation, adhesion, and chemical corrosion resistance.

[0003] Existing epoxy resin board preparation equipment has a complex structure and unreasonable design. During preparation, epoxy resin and curing agent are poured into a container tank, but the stirring mechanism on the tank is fixed in position, allowing stirring only in the central area of ​​the tank cavity. Material in the outer edges of the tank cavity cannot be effectively stirred, easily accumulating numerous air bubbles that cannot be effectively eliminated. This results in pinholes or pits on the surface of the finished product, affecting its appearance and smoothness, and significantly reducing its strength. Furthermore, during operation, operators cannot determine whether all air bubbles have been completely expelled. Therefore, the inventor has improved the structure of the epoxy resin board preparation equipment. Summary of the Invention

[0004] The purpose of this invention is to provide an epoxy resin board preparation apparatus and method. The apparatus has the advantages of simple structure, reasonable design, effective solution to the problem of air bubble accumulation in the container, elimination of pinholes and pits, improvement of product aesthetics and smoothness, improvement of the strength of the finished epoxy resin board, and easy judgment of the air bubble discharge status, making actual work more convenient. It solves the problems mentioned in the above-mentioned technical background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an epoxy resin board preparation apparatus, the apparatus comprising a mixing container and a preparation mechanism disposed on the mixing container, the preparation mechanism comprising a support assembly running on the mixing container, a motor disposed on the support assembly and a reducer connected to the output end of the motor, and the support assembly driving the motor and the reducer to move at a uniform speed along the length direction of the support assembly, a drive shaft being connected at the end of the reducer away from the motor, wherein the drive shaft is vertically disposed, and a plurality of mixing blades are fixed in the circumferential direction of the drive shaft.

[0006] Preferably, the mixing container includes a receiving tank and a measuring tube disposed on one side of the receiving tank. The receiving tank is a hollow cavity structure with an opening at one end. An L-shaped fixing tube is fixed at both ends of the measuring tube. The two fixing tubes are respectively fixed at both ends of the receiving tank. The drive shaft and multiple mixing blades are disposed in the cavity of the receiving tank.

[0007] Preferably, a discharge pipe is fixed at the end of the container away from the support assembly, and a valve is installed on the discharge pipe.

[0008] Preferably, the support assembly includes a U-shaped support base, which is fixed to the container tank, and two parallel linear guide rails are mounted on the upper end face of the support base.

[0009] Preferably, there are connecting seats running on both linear guides, and a mounting plate is fixed between the two connecting seats. The reducer is fixed to the upper end face of the mounting plate.

[0010] Preferably, there are multiple sets of mixing blades, and the multiple sets of mixing blades are spaced apart on the drive shaft, with each set of mixing blades having three blades.

[0011] Preferably, the drive shaft and multiple sets of mixing blades are all disposed inside the mixing container, and the drive shaft is arranged vertically.

[0012] Preferably, the mixing blades are locked to the drive shaft by screws, and the mixing blades are placed at an angle.

[0013] Preferably, the mixing container is provided with a base at the end away from the preparation mechanism, and the mixing container is fixed on the base.

[0014] A method of using an epoxy resin board preparation apparatus includes the following steps: Step 1: Prepare epoxy resin, curing agent, and filler; Step 2: Weigh 10 to 12 parts of epoxy resin and 8 to 15 parts of curing agent by weight, add the two raw materials into the cavity of the container, and drive the reducer by motor to make the drive shaft drive multiple mixing blades to rotate, removing air bubbles generated during material mixing. Step 3: Move the mounting plate and two connecting seats back and forth along the length of the support on two linear guide rails. This will drive multiple rotating mixing blades to fully mix the material at the inner edge of the container cavity, preventing air bubbles from accumulating on the inner wall of the container cavity. Step four: Impregnate the filler into the resin semi-finished product and then heat and press it into shape using a press.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention provides an epoxy resin board preparation device and method, which includes a mixing container and a preparation mechanism disposed on the mixing container. The overall structure is simple and reasonably designed. The preparation mechanism includes a support component running on the mixing container. A motor and a reducer connected to the output end of the motor are disposed on the support component. The support component drives the motor and the reducer to move at a constant speed along the length direction of the support component. A drive shaft is connected to the end of the reducer away from the motor. Multiple mixing blades are fixed in the circumferential direction of the drive shaft. By causing the motor and the reducer to move along the length direction of the support component, the multiple rotating mixing blades are driven to fully stir the material at the inner edge of the container cavity, avoiding the accumulation of air bubbles on the inner wall of the container cavity. This effectively solves the problem of air bubble accumulation in the container, eliminates pinholes and pits, and improves the appearance and smoothness of the product, making it suitable for widespread use.

[0016] 2. The mixing container in this invention includes a receiving tank and a measuring tube disposed on one side of the receiving tank. The receiving tank is a hollow cavity structure with an opening at one end. An L-shaped fixing tube is fixed at both ends of the measuring tube. The two fixing tubes are respectively fixed at both ends of the receiving tank. The surface of the measuring tube is provided with scale lines. Personnel can know the volume of material in the cavity of the receiving tank in real time by looking at the scale on the measuring tube. At the same time, it is easy to judge the discharge status of air bubbles, making the actual work more convenient.

[0017] 3. In the operation of this invention, after the epoxy resin and curing agent are mixed, the filler is impregnated in the resin semi-finished product, and then it is heated and pressed by a press to form the finished epoxy resin board. This step can improve the strength of the finished epoxy resin board. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention.

[0019] Figure 2 This is a schematic diagram of the mixing container of the present invention.

[0020] Figure 3 This is a schematic diagram of the preparation mechanism of the present invention.

[0021] Figure 4 This is a schematic diagram of the support component of the present invention.

[0022] Figure 5 This is a schematic diagram of the overall structure of the present invention.

[0023] The reference numerals and names in the figure are as follows: 1. Mixing container; 11. Receiving tank; 12. Measuring tube; 13. Fixing tube; 14. Discharge tube; 15. Valve; 2. Preparation mechanism; 21. Support assembly; 211. Support base; 212. Linear guide rail; 213. Connecting seat; 214. Mounting plate; 22. Motor; 23. Reducer; 24. Drive shaft; 25. Mixing blades; 3. Base. Detailed Implementation

[0024] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0027] Please see Figure 1One embodiment of the present invention is an epoxy resin board preparation device, which includes a mixing container 1 and a preparation mechanism 2 disposed on the mixing container 1, and the mixing container 1 is disposed on a base 3.

[0028] Please see Figure 2 The mixing container 1 includes a receiving tank 11 and a measuring tube 12 disposed on one side of the receiving tank 11. The receiving tank 11 is a hollow cavity structure with an opening at one end. Two L-shaped fixing tubes 13 are fixed to both ends of the measuring tube 12, respectively. Both fixing tubes 13 communicate with the cavity of the receiving tank 11, allowing material inside the receiving tank 11 to enter the measuring tube 12 through the fixing tubes 13. The surface of the measuring tube 12 is provided with graduation lines, allowing personnel to determine the cavity size of the receiving tank 11 by observing the graduations on the measuring tube 12. The volume of the material inside is measured by observing the gradual decrease of the liquid level through the scale line on the measuring tube 12 during the process of eliminating air bubbles. When the liquid level stops decreasing, it can be determined that the air bubbles have been completely eliminated, thus avoiding unnecessary stirring and reducing energy consumption. A discharge pipe 14 is fixed at the end of the container 11 away from the support component 21, and a valve 15 is installed on the discharge pipe 14. In this embodiment, the valve 15 is a ball valve. The container 11 is fixed on the base 3, and the base 3 is used to support the mixing container 1 and the preparation mechanism 2, so that the mixing container 1 and the preparation mechanism 2 are structurally stable.

[0029] Please see Figure 3 The preparation mechanism 2 includes a support assembly 21 running on the mixing container 1. The support assembly 21 is equipped with a motor 22 and a reducer 23 connected to the output end of the motor 22. The support assembly 21 drives the motor 22 and the reducer 23 to move at a constant speed along the length of the support assembly 21. A drive shaft 24 is connected to the end of the reducer 23 away from the motor 22. The drive shaft 24 is vertically arranged. Multiple mixing blades 25 are fixed in the circumferential direction of the drive shaft 24. The mixing blades 25 are locked to the drive shaft 24 by screws. The multiple sets of mixing blades 25 are all placed at an angle. The drive shaft 24 and the multiple mixing blades 25 are all arranged in the cavity of the container 11, and the drive shaft 24 is vertically arranged.

[0030] Please see Figures 4 to 5The support assembly 21 includes a U-shaped support base 211, which is fixed to the receiving tank 11. Two parallel linear guide rails 212 are mounted on the upper surface of the support base 211. Connecting seats 213 run on each of the two linear guide rails 212, and a mounting plate 214 is fixed between the two connecting seats 213. A reducer 23 is fixed to the upper surface of the mounting plate 214. The support base 211 supports the motor 22 and the reducer 23, and the two linear guide rails 212 drive the motor 22, the reducer 23, the drive shaft 24, and the mixing blades 25. The mixing blades 25 are arranged in multiple sets, and the multiple sets of mixing blades 25 are spaced apart on the drive shaft 24. Each set of mixing blades 25 has three blades. In this embodiment, both the drive shaft 24 and the mixing blades 25 adopt a lightweight structure, which greatly reduces the shaking generated during their rotation. Both the drive shaft 24 and the mixing blades 25 are made of special wear-resistant alloy, specifically high-chromium alloy wear-resistant steel. The width of the mixing blades 25 gradually decreases at the end away from the drive shaft 24, which helps to reduce the pressure at the end away from the drive shaft 24 and keep the drive shaft 24 stable during rotation.

[0031] A method of using an epoxy resin board preparation apparatus includes the following steps: Step 1: Prepare epoxy resin, curing agent and filler. The curing agent is an amine curing agent, specifically ethylenediamine or diethylenetriamine, which has the advantages of high activity and room temperature curing. Step 2: Weigh 10 to 12 parts of epoxy resin and 8 to 15 parts of curing agent by weight, add the two raw materials into the cavity of the container 11, and drive the reducer 23 through the motor 22 to make the drive shaft 24 drive multiple mixing blades 25 to rotate, thereby removing air bubbles generated during material mixing. Step 3: The mounting plate 214 and the two connecting seats 213 are moved back and forth along the length of the support seat 211 on the two linear guide rails 212, which drives multiple rotating mixing blades 25 to fully stir the material at the inner edge of the cavity of the container 11, so as to avoid the accumulation of air bubbles on the inner wall of the cavity of the container 11. Step four: The filler is impregnated in the resin semi-finished product and then heated and pressed by a press to form the product. In this embodiment, the filler is glass fiber or carbon fiber.

[0032] After step four is completed, the molded product needs to be sent into a curing oven for curing. The curing temperature is between 60℃ and 80℃, and the curing time is controlled between 7h and 8.5h. Then, it is cut with a cutting device and its edges are polished with a grinding device to make its shape regular, and finally an epoxy resin board is obtained. In this embodiment, the structure of the press, curing oven, cutting device and grinding device are all existing technologies, and will not be described in detail here.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An epoxy resin board preparation apparatus, characterized in that: The apparatus includes a mixing container (1) and a preparation mechanism (2) disposed on the mixing container (1). The preparation mechanism (2) includes a support assembly (21) running on the mixing container (1). A motor (22) and a reducer (23) connected to the output end of the motor (22) are disposed on the support assembly (21). The support assembly (21) drives the motor (22) and the reducer (23) to move at a constant speed along the length direction of the support assembly (21). A drive shaft (24) is connected to the end of the reducer (23) away from the motor (22). Multiple mixing blades (25) are fixed in the circumferential direction of the drive shaft (24). The mixing container (1) includes a container (11) and a measuring tube (12) disposed on one side of the container (11). The container (11) is a cavity structure with an opening at one end and a hollow interior. Both ends of the measuring tube (12) are fixed with L-shaped fixing tubes (13). The two fixing tubes (13) are respectively fixed at both ends of the container (11). The drive shaft (24) and multiple mixing blades (25) are disposed in the cavity of the container (11).

2. The epoxy resin board preparation apparatus according to claim 1, characterized in that: The end of the container (11) away from the support assembly (21) is fixed with a discharge pipe (14), and a valve (15) is installed on the discharge pipe (14).

3. The epoxy resin board preparation apparatus according to claim 1, characterized in that: The support assembly (21) includes a support base (211) in the shape of a square, the support base (211) is fixed on the container (11), and two parallel linear guide rails (212) are installed on the upper end face of the support base (211).

4. The epoxy resin board preparation apparatus according to claim 1, characterized in that: Each of the two linear guides (212) has a connecting seat (213) running on it, and a mounting plate (214) is fixed between the two connecting seats (213). The reducer (23) is fixed to the upper surface of the mounting plate (214).

5. The epoxy resin board preparation apparatus according to claim 1, characterized in that: The mixing blades (25) are provided in multiple sets, and the multiple sets of mixing blades (25) are spaced apart on the drive shaft (24), with each set of mixing blades (25) having three blades.

6. The epoxy resin board preparation apparatus according to claim 1, characterized in that: The drive shaft (24) and multiple sets of mixing blades (25) are both disposed inside the mixing container (1), and the drive shaft (24) is disposed vertically.

7. The epoxy resin board preparation apparatus according to claim 1, characterized in that: The mixing blades (25) are locked to the drive shaft (24) by screws, and multiple sets of mixing blades (25) are placed at an angle.

8. The epoxy resin board preparation apparatus according to claim 1, characterized in that: The mixing container (1) is provided with a base (3) at the end away from the preparation mechanism (2), and the mixing container (1) is fixed on the base (3).

9. A method of using the epoxy resin board preparation apparatus according to any one of claims 1 to 8, characterized in that, Includes the following steps: Step 1: Prepare epoxy resin, curing agent, and filler; Step 2: Weigh 10 to 12 parts of epoxy resin and 8 to 15 parts of curing agent by weight, add the two raw materials into the cavity of the container (11), and drive the reducer (23) through the motor (22) to make the drive shaft (24) drive multiple mixing blades (25) to rotate, and remove the air bubbles generated during material mixing. Step 3: Move the mounting plate (214) and the two connecting seats (213) back and forth along the length of the support seat (211) on the two linear guide rails (212), thereby driving multiple rotating mixing blades (25) to fully stir the material at the inner edge of the cavity of the container (11) and avoid bubbles accumulating on the inner wall of the cavity of the container (11). Step four: Impregnate the filler into the resin semi-finished product and then heat and press it into shape using a press.

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