A mixer for epoxy resin

Abstract

The utility model provides a kind of mixer for epoxy resin, it is related to mixer field, including shell, stirring subassembly, feed inlet, discharge port and bubble-removing component;Feed inlet and discharge port are communicated with the inner cavity of shell;Stirring subassembly includes stirring shaft and several blades;Blade is fixed with stirring shaft;Blade is located above bubble-removing component;The fixed part of bubble-removing component is closely attached with the side wall of inner cavity;Fixed part is equipped with cavity;The top and bottom of cavity are respectively provided with inflow and outflow, and are communicated with inner cavity;The side wall of cavity is rough, and is provided with several grooves;The extruding piece of bubble-removing component is located in cavity, and is fixed with stirring shaft;Gap is equipped between extruding piece and cavity side wall;Several elastic protruding parts are equipped on extruding piece;Elastic protruding part is attached with the side wall of cavity.The utility model can solve the problem that air may be mixed in epoxy resin during high-speed stirring of prior art, leading to the existence of bubble in the material made of epoxy floor.

Description

Technical Field

[0001] This utility model relates to the field of mixers, and more particularly to a mixer for epoxy resin. Background Technology

[0002] Epoxy flooring is a high-strength and wear-resistant flooring. It is mainly composed of epoxy resin, curing agent, diluent, dispersant, pigments and fillers, and other additives.

[0003] To produce epoxy flooring materials, a mixer is needed to mix epoxy resin, curing agent, diluent, dispersant, pigments, fillers, and other additives to ensure stable material properties. The structure of the mixer can be referenced in Chinese Patent Application No. 202122437953.2, which discloses a mixing device for epoxy resin. This device includes a tank and a material extraction assembly located on the right side of the tank. A motor is fixed to the center of the top of the tank, and a rotating rod is fixed to the motor's output end. The lower end of the rotating rod passes through the top of the tank and extends to the lower interior of the tank. Several evenly distributed blades are fixed to both sides of the rotating rod. The material extraction assembly includes a material extraction pipe, a liquid pump, and a discharge pipe. The left end of the material extraction pipe is fixed to and communicates with the lower right side of the tank. The mixing device provided by the aforementioned patent extracts the epoxy resin from the lower interior of the tank to the upper interior, and then repeatedly stirs the epoxy resin using multiple blades, which helps to ensure uniform mixing of the epoxy resin in all parts of the tank.

[0004] However, when using the mixing device provided by the aforementioned patent, since epoxy resin is viscous and there is air in the tank, high-speed mixing of epoxy resin by the mixing device may cause air to be mixed into the epoxy resin, resulting in air bubbles in the epoxy flooring material. If the epoxy flooring material containing air bubbles is directly laid on the ground, it may reduce the wear resistance or impermeability of the epoxy flooring, affecting its service life. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a mixer for epoxy resin, which solves the problem that high-speed mixing of epoxy resin using existing mixing devices may introduce air into the epoxy resin, resulting in air bubbles in the finished epoxy flooring material; thus reducing air bubbles in the epoxy resin and extending the service life of the epoxy flooring.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a mixer for epoxy resin, including a shell, a mixing assembly, a feed inlet, a discharge outlet, and a defoaming assembly;

[0008] The housing has an inner cavity; the inlet and the outlet are both connected to the inner cavity; the inlet is located at the top of the housing; the outlet is located at the bottom of the housing;

[0009] The stirring assembly includes a stirring shaft and several blades; one end of the stirring shaft is located outside the housing, and the other end is located inside the inner cavity; the blades are located inside the inner cavity; the blades are fixed to the stirring shaft; the blades are located above the defoaming assembly.

[0010] The defoaming component includes a fixing component and an extruding component;

[0011] The edge of the fixing member is in close contact with the side wall of the inner cavity; the fixing member is provided with a cavity; the top of the cavity is provided with an inlet; the inlet communicates with the inner cavity; the bottom of the cavity is provided with an outlet; the outlet communicates with the inner cavity; the stirring shaft passes through the inlet and is fitted inside the cavity.

[0012] The sidewalls of the cavity are rough; several grooves are formed on the sidewalls of the cavity.

[0013] The extruder is located inside the cavity; the extruder is fixed to the stirring shaft; a gap is provided between the extruder and the side wall of the cavity; the extruder is provided with a plurality of elastic protrusions; the elastic protrusions are in contact with the side wall of the cavity.

[0014] The epoxy resin mixer provided by this utility model preferably further includes a sealing plate; the sealing plate is located below the defoaming assembly; the edge of the sealing plate is in close contact with the side wall of the inner cavity; the sealing plate has a plurality of defoaming holes extending from top to bottom; the defoaming holes include a first guide hole, a connecting hole, and a second guide hole; the first guide hole is located above the second guide hole; the diameter of the first guide hole is larger than the diameter of the second guide hole; the connecting hole connects the first guide hole and the second guide hole; the cross-section of the connecting hole gradually decreases from top to bottom.

[0015] The epoxy resin mixer provided by this utility model preferably has a cross-section of the cavity that gradually increases from top to bottom; a heating chamber is provided inside the fixing member; the heating chamber is arranged around the cavity; and a plurality of heating wires are evenly distributed inside the heating chamber.

[0016] The epoxy resin mixer provided by this utility model preferably includes a temperature sensor in the heating chamber; the temperature sensor is electrically connected to the heating wire.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] The epoxy resin mixer provided by this utility model, when the epoxy resin mixture is stirred by the stirring component, the motor drives the stirring shaft, the stirring shaft drives the blades to rotate, and the blades may mix air when mixing the epoxy resin mixture, causing air bubbles to form in the epoxy resin mixture, which affects the normal use of the epoxy flooring material. Therefore, the mixer also includes a defoaming component.

[0019] To remove air bubbles from the epoxy resin mixture after stirring, the blades are positioned above the defoaming assembly;

[0020] Specifically, the defoaming component includes a fixing member and an extrusion member; to prevent the epoxy resin mixture from leaving through the gap between the fixing member and the inner cavity, thus preventing the air bubbles in the epoxy resin mixture from being completely removed, the edge of the fixing member is tightly attached to the side wall of the inner cavity; to remove the air bubbles in the epoxy resin mixture, more specifically, the fixing member is provided with a cavity, the top of the cavity has an inlet that communicates with the inner cavity, allowing the epoxy resin mixture that has not been treated for air bubbles to enter the cavity through the inlet; the bottom of the cavity has an outlet that communicates with the inner cavity, allowing the epoxy resin mixture that has been treated for air bubbles to leave the cavity through the outlet.

[0021] Furthermore, the extruder is placed inside the cavity, and the extruder and the side wall of the cavity exert extrusion pressure to break the air bubbles in the epoxy resin mixture. Specifically, a gap is provided between the extruder and the side wall of the cavity to allow the epoxy resin mixture to pass through continuously. The stirring shaft passes through the inlet and is fitted inside the cavity, so that the extruder and the stirring shaft are fixed. Several elastic protrusions are provided on the extruder, so that the elastic protrusions are in contact with the side wall of the cavity. The rotation of the stirring shaft can drive the elastic protrusions to rotate in close contact with the side wall of the cavity. The elastic protrusions squeeze the air bubbles located on the side wall of the cavity and break them, thereby reducing the number of air bubbles in the epoxy resin mixture.

[0022] Based on this, in order to allow air bubbles in the epoxy resin mixture to remain on the sidewall of the cavity, and to facilitate the elastic protrusions to squeeze the air bubbles on the sidewall of the cavity, specifically, the sidewall of the cavity is made rough to increase the contact resistance between the air bubbles and the sidewall, and slow down the movement speed of the air bubbles; and several grooves are formed on the sidewall of the cavity, so that the flow rate of the epoxy resin mixture is reduced when passing through the grooves. If air bubbles enter the grooves, the slow-moving epoxy resin mixture will have difficulty carrying the air bubbles away from the grooves, and the air bubbles will easily be trapped in the grooves. Combined with the elastic protrusions, they can effectively squeeze into the grooves, thereby improving the removal efficiency of air bubbles in the epoxy resin mixture;

[0023] Existing technologies using high-speed agitation of epoxy resin may introduce air into the resin, resulting in air bubbles in the finished epoxy flooring material. The epoxy resin mixer provided in this invention, by creating a gap between the fixing and extruding components and by roughening the cavity sidewalls and adding grooves, increases the retention rate of air bubbles on the cavity sidewalls. Combined with the elastic protrusions on the extruding components, this effectively improves the removal efficiency of air bubbles in the epoxy resin mixture, thereby reducing air bubbles in the epoxy resin mixture and extending the service life of the epoxy flooring. Attached Figure Description

[0024] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0025] Figure 1 This is a cross-sectional schematic diagram of the epoxy resin mixer provided in Embodiment 1 of this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0027] Example 1:

[0028] like Figure 1 As shown, Embodiment 1 of this utility model provides a mixer for epoxy resin, including a shell 1, a mixing assembly 2, a feed inlet 3, a discharge outlet 4, and a defoaming assembly 5;

[0029] The housing 1 has an inner cavity 11; the inlet 3 and the outlet 4 are both connected to the inner cavity 11; the inlet 3 is located at the top of the housing 1; the inlet 4 is located above the defoaming component 5; and the outlet 4 is located at the bottom of the housing 1.

[0030] The stirring assembly 2 includes a stirring shaft 21 and several blades 22; one end of the stirring shaft 21 is located outside the housing 1, and the other end is located inside the inner cavity 11; the blades 22 are located inside the inner cavity 11; the blades 22 are fixed to the stirring shaft 21; the blades 22 are located above the defoaming assembly 5;

[0031] The defoaming component 5 includes a fixing member 51 and an extruding member 52;

[0032] The edge of the fixing member 51 is in close contact with the side wall of the inner cavity 11; the fixing member 51 is provided with a cavity 511; the top of the cavity 511 is provided with an inlet 5111; the inlet 5111 communicates with the inner cavity 11; the bottom of the cavity 511 is provided with an outlet 5112; the outlet 5112 communicates with the inner cavity 11; the stirring shaft 21 passes through the inlet 5111 and is fitted inside the cavity 511.

[0033] The sidewalls of the cavity 511 are rough; several grooves 5113 are formed on the sidewalls of the cavity 511.

[0034] The extruder 52 is located inside the cavity 511; the extruder 52 is fixed to the stirring shaft 21; there is a gap between the extruder 52 and the side wall of the cavity 511; the extruder 52 is provided with a number of elastic protrusions 521; the elastic protrusions 521 are in contact with the side wall of the cavity 511.

[0035] When using the epoxy resin mixer provided in Embodiment 1 of this utility model, an epoxy resin mixture containing curing agent, diluent, dispersant, pigments, fillers, and other additives is fed into the inner cavity 11 through the inlet 3 and falls above the fixing member 51; a motor is installed outside the housing 1, and the output shaft of the motor is fixed to the stirring shaft 21. The motor drives the stirring shaft 21 to rotate, and the stirring shaft 21 drives the blades 22 to rotate, thus stirring and mixing the epoxy resin mixture in the inner cavity 11; the epoxy resin mixture near the top of the fixing member 51 flows in from the inlet 3. The epoxy resin mixture enters the cavity 511 through the outlet 5111. Specifically, the epoxy resin mixture enters the gap between the side wall of the cavity 511 and the extruder 52. Air bubbles in the epoxy resin mixture are trapped on the side wall of the cavity 511 or in the groove 5113. The extruder 52 is driven to rotate by the stirring shaft 21. The extruder 52 drives the elastic protrusion 521 to rotate. The elastic protrusion 521 squeezes the air bubbles on the side wall of the cavity 511 or in the groove 5113 and leaves the cavity 511 through the outlet 5112. The epoxy resin mixture is discharged from the discharge port 4.

[0036] The epoxy resin mixer provided in Embodiment 1 of this utility model, when the epoxy resin mixture is stirred by the stirring component 2, the motor drives the stirring shaft 21, the stirring shaft 21 drives the blades 22 to rotate. When the blades 22 rotate and mix the epoxy resin mixture, air may be mixed in, causing bubbles to form in the epoxy resin mixture, which affects the normal use of the epoxy flooring material produced. Therefore, the mixer also includes a defoaming component 5.

[0037] In order to remove air bubbles in the epoxy resin mixture after stirring, the blade 22 is positioned above the defoaming component 5;

[0038] Specifically, the defoaming component 5 includes a fixing member 51 and an extrusion member 52. To prevent the epoxy resin mixture from leaving through the gap between the fixing member 51 and the inner cavity 11, thus preventing the air bubbles in the epoxy resin mixture from being completely removed, the edge of the fixing member 51 is tightly attached to the side wall of the inner cavity 11. More specifically, to remove the air bubbles in the epoxy resin mixture, the fixing member 51 is provided with a cavity 511. The top of the cavity 511 is provided with an inlet 5111, which communicates with the inner cavity 11, allowing the epoxy resin mixture that has not been treated for air bubbles to enter the cavity 511 through the inlet 5111. The bottom of the cavity 511 is provided with an outlet 5112, which communicates with the inner cavity 11, allowing the epoxy resin mixture that has been treated for air bubbles to leave the cavity 511 through the outlet 5112.

[0039] Furthermore, the extruder 52 is placed inside the cavity 511, and the extrusion force formed between the extruder 52 and the side wall of the cavity 511 causes the air bubbles in the epoxy resin mixture to burst. Specifically, a gap is provided between the extruder 52 and the side wall of the cavity 511 to allow the epoxy resin mixture to pass through continuously. The stirring shaft 21 passes through the inlet 5111 and is fitted inside the cavity 511, so that the extruder 52 is fixed to the stirring shaft 21. Several elastic protrusions 521 are provided on the extruder 52, so that the elastic protrusions 521 are in contact with the side wall of the cavity 511. The rotation of the stirring shaft 21 can drive the elastic protrusions 521 to rotate in close contact with the side wall of the cavity 511. The elastic protrusions 521 squeeze the air bubbles located on the side wall of the cavity 511 and cause them to burst, thereby reducing the number of air bubbles in the epoxy resin mixture.

[0040] Based on this, in order to allow the air bubbles in the epoxy resin mixture to remain on the side wall of the cavity 511, so that the elastic protrusion 521 can squeeze the air bubbles on the side wall of the cavity 511, specifically, the side wall of the cavity 511 is made rough to increase the contact resistance between the air bubbles and the side wall and slow down the movement speed of the air bubbles; and several grooves 5113 are formed on the side wall of the cavity 511, so that the flow rate of the epoxy resin mixture is reduced when it passes through the grooves 5113. If the air bubbles enter the grooves 5113, the low-speed epoxy resin mixture will have difficulty carrying the air bubbles away from the grooves 5113, and the air bubbles will easily be trapped in the grooves 5113. In conjunction with the elastic protrusion 521, it can effectively squeeze into the grooves 5113, thereby improving the removal efficiency of air bubbles in the epoxy resin mixture.

[0041] Existing technologies may introduce air into epoxy resin through high-speed stirring, resulting in air bubbles in the finished epoxy flooring material. The epoxy resin mixer provided in Embodiment 1 of this invention, by creating a gap between the fixing member 51 and the extruder 52, and by roughening the sidewall of the cavity 511 and providing several grooves 5113 on the sidewall of the cavity 511, increases the retention rate of air bubbles on the sidewall of the cavity 511. Combined with the elastic protrusion 521 located on the extruder 52, this effectively improves the removal efficiency of air bubbles in the epoxy resin mixture, thereby reducing air bubbles in the epoxy resin mixture and extending the service life of the epoxy flooring.

[0042] The epoxy resin mixer provided in Embodiment 1 of this utility model preferably includes a sealing plate 6 to further reduce air bubbles in the epoxy resin mixture. The sealing plate 6 is located below the defoaming component 5. The edge of the sealing plate 6 is tightly attached to the side wall of the inner cavity 11 so that all the epoxy resin mixture must pass through the sealing plate 6. Specifically, the sealing plate 6 has a plurality of defoaming holes 61 extending from top to bottom. Each defoaming hole 61 includes a first guide hole 611, a connecting hole 612, and a second guide hole 613. The first guide hole 611 is located above the second guide hole 613, and the connecting hole 612 connects the first guide hole 611 and the second guide hole 613. 3. When the epoxy resin mixture passes through the defoaming hole 61, it passes through the first guide hole 611, the connecting hole 612, and the second guide hole 613 in sequence. The diameter of the first guide hole 611 is larger than the diameter of the second guide hole 613, and the cross-section of the connecting hole 612 gradually decreases from top to bottom. The process of gradually reducing the pore size is controlled by the connecting hole 612. When the epoxy resin mixture with bubbles transitions from a larger pore size to a smaller pore size, a pressure difference is formed because the larger pore size has a larger static pressure and the smaller pore size has a smaller static pressure. The bubbles are squeezed and broken by the epoxy resin mixture on the high-pressure side, thereby reducing the number of bubbles in the epoxy resin mixture.

[0043] It should be noted that the outlet 4 is located below the sealing plate 6 to ensure that the epoxy resin mixture discharged from the outlet 4 has been de-bubbled by the sealing plate 6.

[0044] The epoxy resin mixer provided in Embodiment 1 of this utility model is preferably designed to further improve the retention rate of air bubbles in the epoxy resin mixture on the side wall of the cavity 511. Specifically, the cross-section of the cavity 511 is gradually increased from top to bottom, making the side wall of the cavity 511 inclined. A heating cavity 512 is provided in the fixing member 51, and the heating cavity 512 is arranged around the cavity 511. A plurality of heating wires 5121 are evenly distributed in the heating cavity 512. A regulated power supply is used to energize the heating wires 5121 to form a constant temperature to heat the epoxy resin mixture in the gap between the fixing member 51 and the extruder 52, so that the air bubbles in the epoxy resin mixture float to the side wall of the cavity 511, and the inclined side wall can better intercept the air bubbles.

[0045] The epoxy resin mixer provided in Embodiment 1 of this utility model preferably includes a temperature sensor in the heating chamber 512 to monitor the temperature of the heating chamber 512, thereby indirectly monitoring the temperature of the epoxy resin mixture and preventing the epoxy resin from degenerating under overheating conditions; the temperature sensor is electrically connected to the heating wire 5121, and if the temperature sensor detects that the heating chamber 512 exceeds the preset temperature, the heating wire 5121 is de-energized.

[0046] In summary, the mixer for epoxy resin provided by this utility model can solve the problem that high-speed stirring of epoxy resin by existing stirring devices may cause air to be mixed into the epoxy resin, resulting in air bubbles in the finished epoxy flooring material; thus reducing air bubbles in epoxy resin and improving the service life of epoxy flooring.

[0047] Those skilled in the art should understand that variations can be implemented by combining existing technology and the above embodiments, and will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here.

[0048] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of this utility model, or equivalent embodiments with equivalent changes, do not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A mixer for epoxy resin, characterized by, Includes a shell, stirring assembly, feed inlet, discharge outlet, and defoaming assembly; The housing has an inner cavity; the inlet and the outlet are both connected to the inner cavity; the inlet is located at the top of the housing; the outlet is located at the bottom of the housing; The stirring assembly includes a stirring shaft and several blades; one end of the stirring shaft is located outside the housing, and the other end is located inside the inner cavity; the blades are located inside the inner cavity; the blades are fixed to the stirring shaft; the blades are located above the defoaming assembly. The defoaming component includes a fixing component and an extruding component; The edge of the fixing member is in close contact with the side wall of the inner cavity; the fixing member is provided with a cavity; the top of the cavity is provided with an inlet; the inlet communicates with the inner cavity; the bottom of the cavity is provided with an outlet; the outlet communicates with the inner cavity; the stirring shaft passes through the inlet and is fitted inside the cavity. The sidewalls of the cavity are rough; several grooves are formed on the sidewalls of the cavity. The extruder is located inside the cavity; the extruder is fixed to the stirring shaft; a gap is provided between the extruder and the side wall of the cavity; the extruder is provided with a plurality of elastic protrusions; the elastic protrusions are in contact with the side wall of the cavity.

2. The mixer for epoxy resin as described in claim 1, characterized in that, It also includes a sealing plate; the sealing plate is located below the defoaming assembly; the edge of the sealing plate is in close contact with the side wall of the inner cavity; the sealing plate has a plurality of defoaming holes extending from top to bottom; the defoaming holes include a first guide hole, a connecting hole and a second guide hole; the first guide hole is located above the second guide hole; the diameter of the first guide hole is larger than the diameter of the second guide hole; the connecting hole connects the first guide hole and the second guide hole; the cross-section of the connecting hole gradually decreases from top to bottom.

3. The mixer for epoxy resin as described in claim 1, characterized in that, The cross-section of the cavity gradually increases from top to bottom; a heating cavity is provided inside the fixing member; the heating cavity is arranged around the cavity; and several heating wires are evenly distributed inside the heating cavity.

4. The mixer for epoxy resin as described in claim 3, characterized in that, A temperature sensor is also provided inside the heating chamber; the temperature sensor is electrically connected to the heating wire.

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