Stirring device for epoxy resin

Abstract

The utility model discloses a stirring device for epoxy resin, which comprises a stirring barrel, a vacuum component and a stirring mechanism, the lower end of the stirring barrel is communicated with a discharge pipe, two feeding components for quantitative blanking are mounted at the upper end of the stirring barrel, the vacuum component is mounted at the upper end of the stirring barrel, and the stirring mechanism is mounted at the lower end of the stirring barrel. The stirring mechanism is arranged in the stirring barrel and comprises an adjusting assembly for adjusting the movement of a stirring assembly; the stirring assembly can be driven by the adjusting assembly to rotate and can also ascend and descend at the same time, materials can be effectively prevented from forming inertial flow along with the rotation action of the stirring assembly, then epoxy resin and a curing agent can be better mixed, the processing effect is improved, air in the stirring barrel can be pumped out through the vacuum assembly, and the stirring efficiency is improved. A vacuum state is formed in the stirring barrel, so that air is prevented from entering the stirring barrel in a mixing process, bubbles are prevented from appearing in a product, and product quality is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of epoxy resin processing, in particular to a stirring device for epoxy resin. Background Art

[0002] Epoxy resin is a high molecular polymer with a molecular formula of , which is a general term for a class of polymers containing two or more epoxy groups in the molecule. It is a condensation product of epichlorohydrin and bisphenol A or polyols. The main raw materials of epoxy resin potting glue are epoxy resin and curing agent. A stirring device is required to mix the epoxy resin and curing agent during the production process.

[0003] A stirring device for producing epoxy resin compositions disclosed in reference authorization announcement number CN210045235U comprises a stirring barrel, a corresponding cover is provided on the top of the stirring barrel, a corresponding stirring shaft is provided at the center of the stirring barrel, the stirring shaft is driven by a driving mechanism provided at the top of the cover, the upper and lower ends of the stirring shaft are respectively slidably connected with a plurality of corresponding stirring blades at equal angles, the outer ends of the stirring blades at the same height are respectively hinged to the corresponding annular positioning plates, the outer ends of the two sides of the annular positioning plates are respectively provided with corresponding pull rods, the top ends of the pull rods respectively extend outward from the cover and are driven by corresponding driving cylinders, the pull rods are respectively rotated inwardly at positions corresponding to the annular positioning plates and are installed with a group of corresponding positioning tubes, and the two sides of the annular positioning plates are respectively clamped in the corresponding positioning tubes. The utility model can effectively improve the stirring efficiency and stirring effect. Mixing is a key step to ensure that the epoxy resin and the curing agent are fully combined. During the mixing process, air should be prevented from entering, as this may cause bubbles to appear in the product. The utility model feeds materials through the feed port, and the device is not in a vacuum-tight state, which easily causes bubbles to form in the mixed epoxy resin, affecting the product quality. In addition, the top ends of the pull rods extend out of the cover and are driven by corresponding drive cylinders. The drive cylinders are fixedly installed. When the drive cylinder drives the stirring blade to move, the drive motor cannot drive the stirring blade to rotate. Therefore, those skilled in the art provide a stirring device for epoxy resin to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a stirring device for epoxy resin, which has the advantage of vacuum stirring, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A stirring device for epoxy resin, comprising:

[0007] A stirring barrel, wherein the lower end of the stirring barrel is connected to a discharge pipe, and the upper end of the stirring barrel is equipped with two feeding components for quantitative feeding;

[0008] A vacuum assembly, the vacuum assembly being mounted on the upper end of the mixing barrel; and

[0009] A stirring mechanism is arranged in the stirring barrel, and the stirring mechanism includes an adjusting component for adjusting the movement of the stirring component.

[0010] Preferably, the feeding assembly comprises a feeding tank, a connecting pipe is connected between the feeding tank and the stirring barrel, a flow control valve is installed on the connecting pipe, and a feed pipe is provided at the upper end of the feeding tank.

[0011] Preferably, the vacuum assembly includes a vacuum pump and an exhaust pipe, the vacuum pump is fixedly mounted on the upper end of the mixing barrel, one end of the exhaust pipe passes through the mixing barrel, and the other end is connected to the vacuum pump.

[0012] Preferably, the stirring assembly includes a connecting column and a plurality of stirring blades, and the plurality of stirring blades are fixedly mounted on the connecting column.

[0013] Preferably, the adjustment assembly includes a servo electric cylinder, a threaded rod and a support frame, the support frame is fixedly mounted at the lower end of the inner cavity of the mixing barrel, the threaded rod is fixedly mounted on the support frame, a threaded cavity threadedly connected to the threaded rod is provided in the connecting column, and the output end of the servo electric cylinder passes through the mixing barrel and is connected to the connecting column through a connecting part.

[0014] Preferably, the connecting part includes two connecting blocks and a connecting plate, the output end of the servo electric cylinder is connected to the two connecting blocks, and the other ends of the two connecting blocks are connected to the connecting plate, a connecting ring is provided on the connecting plate, and a connecting groove for rotational connection of the connecting ring is provided at the upper end of the connecting column.

[0015] Preferably, a scraper is installed at one end of a plurality of the stirring blades, and the scraper is in contact with and connected to the inner wall of the stirring barrel.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model can control the feeding amount of epoxy resin and curing agent through the setting of two feeding components, thereby increasing the accuracy of the ratio, and the stirring mechanism is set by the stirring component and the adjusting component. The adjusting component can drive the stirring component to rotate and also rise and fall, which can effectively prevent the material from forming inertial flow with the rotation of the stirring component, thereby better mixing the epoxy resin and the curing agent and increasing the processing effect.

[0018] 2. The utility model can extract the air inside the mixing barrel by setting the vacuum component, so that a vacuum state is formed in the mixing barrel, which can prevent air from entering during the mixing process, thereby causing bubbles to appear in the product and affecting the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a stirring device for epoxy resin in an embodiment of the present application;

[0020] Figure 2 This is a schematic cross-sectional view of a stirring device for epoxy resin in an embodiment of the present application;

[0021] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of a stirring mechanism of a stirring device for epoxy resin in an embodiment of the present application.

[0023] In the figure: 1. stirring barrel; 2. discharge pipe; 3. feeding assembly; 301. feeding tank; 302. connecting pipe; 303. flow control valve; 304. feeding pipe; 4. vacuum assembly; 401. vacuum pump; 402. exhaust pipe; 5. stirring mechanism; 501. stirring assembly; 5011. connecting column; 5012. stirring blade; 5013. connecting groove; 5014. scraper; 5015. threaded cavity; 5016. tapered hole; 502. adjustment assembly; 5021. servo electric cylinder; 5022. threaded rod; 5023. support frame; 503. connecting part; 5031. connecting block; 5032. connecting plate; 5033. connecting ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 , the utility model provides a technical solution:

[0026] A stirring device for epoxy resin, comprising:

[0027] A mixing barrel 1, the lower end of which is connected to a discharge pipe 2, and the upper end of which is provided with two feeding components 3 for quantitative feeding;

[0028] A vacuum component 4, which is mounted on the upper end of the mixing barrel 1; and

[0029] The stirring mechanism 5 is disposed in the stirring barrel 1 , and the stirring mechanism 5 includes an adjusting component 502 for adjusting the movement of the stirring component 501 .

[0030] In this embodiment, the vacuum component 4 is used to suck out the air in the mixing barrel 1, so that the mixing barrel 1 is in a vacuum state, which can prevent air from entering during the mixing process, thereby causing bubbles in the product and affecting the product quality. The epoxy resin and the curing agent are respectively placed in the feeding component 3, and then the feeding component 3 is used to control the feeding, and quantitative feeding can be performed into the mixing barrel 1, thereby increasing the mixing accuracy and improving the processing quality.

[0031] Then, the adjusting component 502 drives the stirring component 501 to rotate to stir and mix the epoxy resin and the curing agent. While the adjusting component 502 drives the stirring component 501 to rotate, it can also drive the stirring component 501 to rise and fall, which can effectively prevent the material from forming inertial flow as the stirring component 501 rotates, thereby further increasing the mixing effect of the epoxy resin and the curing agent.

[0032] Furthermore, the feeding assembly 3 includes a feeding tank 301 , a connecting pipe 302 is connected between the feeding tank 301 and the mixing barrel 1 , a flow control valve 303 is installed on the connecting pipe 302 , and a feed pipe 304 is provided at the upper end of the feeding tank 301 .

[0033] The feeding tank 301 can control the epoxy resin and curing agent in the feeding tank 301 to be quantitatively discharged through the flow control valve 303 to increase the accuracy of discharge. The epoxy resin and curing agent can enter the mixing barrel 1 through the connecting pipe 302.

[0034] The vacuum assembly 4 includes a vacuum pump 401 and an exhaust pipe 402. The vacuum pump 401 is fixedly mounted on the upper end of the mixing barrel 1. One end of the exhaust pipe 402 passes through the mixing barrel 1, and the other end is connected to the vacuum pump 401. The vacuum pump 401 can extract the gas in the mixing barrel 1 through the exhaust pipe 402, so that the mixing barrel 1 is in a vacuum state, thereby avoiding bubbles in the mixture during the mixing process, which affects the product quality.

[0035] Specifically, the stirring component 501 includes a connecting column 5011 and a plurality of stirring blades 5012, and the plurality of stirring blades 5012 are fixedly mounted on the connecting column 5011. The adjusting component 502 includes a servo electric cylinder 5021, a threaded rod 5022 and a support frame 5023, and the support frame 5023 is fixedly mounted on the lower end of the inner cavity of the stirring barrel 1, and the threaded rod 5022 is fixedly mounted on the support frame 5023. A threaded cavity 5015 threadedly connected to the threaded rod 5022 is provided in the connecting column 5011, and the output end of the servo electric cylinder 5021 passes through the stirring barrel 1 and is connected to the connecting column 5011 through the connecting part 503.

[0036] The connecting part 503 includes two connecting blocks 5031 and a connecting plate 5032. The output end of the servo electric cylinder 5021 is connected to the two connecting blocks 5031, and the other ends of the two connecting blocks 5031 are connected to the connecting plate 5032. A connecting ring 5033 is provided on the connecting plate 5032. A connecting groove 5013 for rotatable connection of the connecting ring 5033 is provided at the upper end of the connecting column 5011. A scraper 5014 is installed at one end of the plurality of stirring blades 5012, and the scraper 5014 is in contact with and connected to the inner wall of the stirring barrel 1.

[0037] The servo electric cylinder 5021 drives the connecting plate 5032 to move up and down through the two connecting blocks 5031, thereby driving the connecting column 5011 to move up and down. Since the connecting column 5011 is provided with a threaded cavity 5015 threadedly connected to the threaded rod 5022, and the upper end of the connecting column 5011 is provided with a connecting groove 5013 for the connecting ring 5033 to be rotatably connected, when the connecting column 5011 moves up and down, the connecting column 5011 rotates, and the connecting ring 5033 rotates in the connecting groove 5013, thereby driving the plurality of stirring blades 5012 to rotate and move up and down, thereby increasing the stirring range and the mixing effect of the epoxy resin and the curing agent. When the plurality of stirring blades 5012 rotate, the scraper 5014 at one end of the stirring blade 5012 can scrape off the mixture adhering to the inner wall of the stirring barrel 1, so as to clean the inner wall of the stirring barrel 1;

[0038] Among them, a number of conical holes 5016 are opened on the several stirring blades 5012. Therefore, in the process of stirring by the several stirring blades 5012, the epoxy resin flows from the end with a larger diameter of the several conical holes 5016 to the end with a smaller diameter, which can not only increase the dispersion effect of the epoxy resin, thereby further increasing the stirring and mixing effect of the epoxy resin and the curing agent, but also can eliminate bubbles in the event of a vacuum pump failure. The specific principle is disclosed in the prior art, so it will not be further described here.

[0039] Here’s how this application works:

[0040] Epoxy resin and curing agent are added into the feeding tank 301 through the feeding pipe 304 respectively, and the vacuum pump 401 extracts the gas in the mixing barrel 1 through the exhaust pipe 402 to make the mixing barrel 1 in a vacuum state, and then the flow control valve 303 is controlled to quantitatively discharge the epoxy resin and curing agent. After the discharge is completed, the servo electric cylinder 5021 drives the connecting plate 5032 to move up and down through the two connecting blocks 5031;

[0041] During the up-and-down movement of the connecting plate 5032, since one end of the threaded rod 5022 is threadedly connected to the threaded cavity 5015 of the connecting column 5011, and the connecting ring 5033 on the connecting plate 5032 is rotatably connected to the connecting groove 5013 of the connecting column 5011, the connecting plate 5032 can drive the connecting column 5011 to rotate while driving the connecting column 5011 to move up and down, and the connecting column 5011 can drive a plurality of stirring blades 5012 to mix the epoxy resin and the curing agent during the rotation process;

[0042] Since the plurality of stirring blades 5012 can move up and down during the rotation process, the mixing range is increased, and the mixing effect is further improved. In the mixing process, the scraper 5014 at one end of the plurality of stirring blades 5012 can scrape off the mixture adhering to the inner wall of the mixing barrel 1 and clean the inner wall of the mixing barrel 1. After the mixing is completed, the mixture can be discharged through the discharge pipe 2.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stirring device for epoxy resin, characterized in that: include: A stirring barrel (1), wherein the lower end of the stirring barrel (1) is connected to a discharge pipe (2), and the upper end of the stirring barrel (1) is equipped with two feeding components (3) for quantitative feeding; A vacuum component (4), the vacuum component (4) being installed on the upper end of the mixing barrel (1); and A stirring mechanism (5), wherein the stirring mechanism (5) is arranged in the stirring barrel (1), and the stirring mechanism (5) comprises an adjusting component (502) for adjusting the movement of the stirring component (501).

2. The stirring device for epoxy resin according to claim 1, characterized in that: The feeding assembly (3) comprises a feeding tank (301), a connecting pipe (302) is connected between the feeding tank (301) and the stirring barrel (1), a flow control valve (303) is installed on the connecting pipe (302), and a feed pipe (304) is provided at the upper end of the feeding tank (301).

3. The stirring device for epoxy resin according to claim 1, characterized in that: The vacuum assembly (4) comprises a vacuum pump (401) and an exhaust pipe (402); the vacuum pump (401) is fixedly mounted on the upper end of the mixing barrel (1); one end of the exhaust pipe (402) passes through the mixing barrel (1), and the other end is connected to the vacuum pump (401).

4. The stirring device for epoxy resin according to claim 1, characterized in that: The stirring assembly (501) comprises a connecting column (5011) and a plurality of stirring blades (5012), wherein the plurality of stirring blades (5012) are fixedly mounted on the connecting column (5011).

5. The stirring device for epoxy resin according to claim 4, characterized in that: A scraper (5014) is installed at one end of each of the stirring blades (5012), and the scraper (5014) is in contact with and connected to the inner wall of the stirring barrel (1).

6. The stirring device for epoxy resin according to claim 4, characterized in that: The adjustment component (502) comprises a servo electric cylinder (5021), a threaded rod (5022) and a support frame (5023); the support frame (5023) is fixedly mounted on the lower end of the inner cavity of the mixing barrel (1); the threaded rod (5022) is fixedly mounted on the support frame (5023); a threaded cavity (5015) threadedly connected to the threaded rod (5022) is provided in the connecting column (5011); the output end of the servo electric cylinder (5021) passes through the mixing barrel (1) and is connected to the connecting column (5011) through the connecting portion (503).

7. The stirring device for epoxy resin according to claim 6, characterized in that: The connecting portion (503) comprises two connecting blocks (5031) and a connecting plate (5032); the output end of the servo electric cylinder (5021) is connected to the two connecting blocks (5031), and the other ends of the two connecting blocks (5031) are connected to the connecting plate (5032); a connecting ring (5033) is provided on the connecting plate (5032); and a connecting groove (5013) for rotatable connection of the connecting ring (5033) is provided on the upper end of the connecting column (5011).

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