An agitator for preparing an aqueous UV resin

Abstract

The present application relates to a kind of stirring device for preparing water-based UV resin, including main body, main body includes lower box, stirring body being arranged in the inside of lower box, and reduction motor being arranged in the outside of lower box, the rotary shaft of reduction motor is connected with stirring body to drive stirring body rotation;The upper portion of main body is also provided with mixing assembly, and mixing assembly includes detachable upper box being fixed in the opening of lower box top, and multiple mixing plates being transversely arranged in the inside of upper box and being sequentially stacked from top to bottom;Stirring body includes transversely arranged dynamic pipe, fixed shaft being concentrically arranged in the inside of dynamic pipe, and multiple stirring units being arranged outside dynamic pipe and sequentially distributed along the length direction of dynamic pipe;The present application is suitable for water-based UV resin with lower viscosity by using transverse stirring mode, and the stirring speed is accelerated to improve stirring efficiency;Stirring mode is also increased and optimized, so that the mixing effect of each formula material is greatly improved to significantly improve the uniformity of mixed material.

Description

Technical Field

[0001] This invention relates to the field of waterborne UV resin preparation technology, and more particularly to a stirring device for preparing waterborne UV resin. Background Technology

[0002] Waterborne UV resin is a type of UV resin that is soluble in water or dispersible in water. It has low viscosity and its molecules contain both a certain number of strong hydrophilic groups, such as carboxyl, hydroxyl, amino, ether, and amide groups, and unsaturated groups, such as acryloyl, methacryloyl, or allyl groups. This structure allows waterborne UV resin to form stable dispersions or emulsions in water and other liquid media, while also possessing UV curing capabilities. In addition, different color developers and modifiers are added as needed. Commonly used modifiers include organosilicon, alumina, and SiO2 nanoparticles. Adding organosilicon can improve the overall performance of waterborne UV resin; adding alumina and SiO2 nanoparticles can effectively increase the hardness of the coating without affecting the adhesion between the coating and the substrate.

[0003] The preparation of waterborne UV resins requires sequential steps such as batching, stirring, soaking, and filtration. Stirring is a crucial step affecting the performance of waterborne UV resins. Existing stirring equipment for preparing waterborne UV resins uses a relatively simple stirring mode, resulting in poor mixing of the various formulation materials and consequently low uniformity of the mixture. Moreover, most of them use vertical stirring, which is slow and inefficient, causing the mixture to easily settle at the bottom. This method is often used for more viscous materials and is therefore unsuitable for waterborne UV resins with lower viscosity, which urgently needs to be addressed. Summary of the Invention

[0004] In view of the current status of the prior art, the technical problem to be solved by the present invention is to provide a stirring device for preparing waterborne UV resin that is suitable for waterborne UV resin with low viscosity, so as to accelerate the stirring speed and improve the stirring efficiency, and also increases and optimizes the stirring mode to greatly improve the mixing effect of each formulation material, thereby significantly improving the uniformity of the mixture.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problem is as follows: a stirring device for preparing water-based UV resin, comprising a main body, the main body including a lower box, a stirring body disposed inside the lower box, and a reduction motor disposed outside the lower box, the rotating shaft of the reduction motor being connected to the stirring body to drive the stirring body to rotate, characterized in that:

[0006] A mixing assembly is also provided above the main body. The mixing assembly includes a detachable upper box fixed at the top opening of the lower box and multiple mixing plates arranged horizontally inside the upper box and stacked sequentially from top to bottom. A cavity is opened at the bottom of the upper box. The length and width of the mixing plates are greater than the length and width of the cavity to prevent the horizontally placed mixing plates from falling through the cavity.

[0007] Each of the mixing plates has the same number of spiral through holes. The upper opening of any spiral through hole is connected to the lower opening of the spiral through hole above and adjacent to it, and the lower opening of any spiral through hole is connected to the upper opening of the spiral through hole below and adjacent to it.

[0008] Each of the spiral through holes that are connected to each other from top to bottom forms a spiral mixing channel. The lower opening of each spiral mixing channel is located inside the cavity and is connected to the top opening of the lower box.

[0009] Any two adjacent mixing plates are fitted together to prevent material residue between them. The bottom outer wall of the lowest mixing plate is fitted to the bottom inner wall of the upper box to prevent material from flowing into the cavity through the gap between the lowest mixing plate and the bottom of the upper box.

[0010] Preferably, the stirring body includes a horizontally arranged moving tube, a fixed shaft concentrically arranged inside the moving tube, and a plurality of stirring units arranged outside the moving tube and distributed sequentially along the length of the moving tube. The two ends of the moving tube are rotatably sealed and inserted into the left and right sides of the lower box body, and the two ends of the fixed shaft extend to the outside of the two ends of the moving tube and are fixed to the outer walls of the left and right sides of the lower box body.

[0011] Preferably, the stirring unit includes a stirring shaft that is rotatably and detachably connected to the moving tube and perpendicular to the central axis of the fixed shaft, a stirring block that is detachably fixed to the end of the stirring shaft, and a fixed plate that is concentrically sleeved and fixed outside the fixed shaft and located inside the moving tube. The root of the stirring shaft extends into the interior of the moving tube and is located to the left or right of the fixed plate. The rotating shaft of the reduction motor is connected to one end of the moving tube.

[0012] Preferably, a conical tooth ring is formed on the outer circumferential surface of the root of the stirring shaft. Correspondingly, an annular conical tooth surface that cooperates with the conical tooth ring is formed on the outer wall of the fixed plate facing the root of the stirring shaft. The conical tooth ring meshes on the annular conical tooth surface. The outer diameter of the root of the conical tooth ring is not greater than the outer diameter of the root of the stirring shaft so that the conical tooth ring can be smoothly inserted into the interior of the moving tube.

[0013] Preferably, a sealing sleeve is also provided outside the stirring shaft. The sealing sleeve is inserted between the inner wall and the outer wall on the corresponding side of the moving tube and is perpendicular to the central axis of the fixed shaft.

[0014] Preferably, the stirring unit further includes two diagonally opposite seats located outside the moving tube and detachably fixed to each other to hold the moving tube, with the root of the stirring shaft rotatably inserted into one of the seats.

[0015] Preferably, the radial cross-sectional outer contour of the moving tube is square, and a plurality of annular grooves are formed on the outer wall of the moving tube in sequence along the length of the moving tube. The number of annular grooves is equal to the number of stirring units. The radial cross-sectional outer contour of the annular groove is square, and the sealing sleeve is inserted between one of the bottom surfaces of the annular groove and the inner wall of the moving tube.

[0016] Preferably, the two seat blocks are fixed diagonally in a corresponding annular groove, and the opposite outer walls of the two seat blocks are respectively attached to two diagonally distributed bottom surfaces in the annular groove to prevent the two seat blocks from shifting along the length of the moving tube; a limiting groove is provided on the opposite outer walls of the two seat blocks, and the two inner walls of each limiting groove are respectively attached to the other two diagonally distributed bottom surfaces to prevent the two seat blocks from shifting in a direction perpendicular to the central axis of the moving tube.

[0017] Preferably, a vertically arranged guide strip is fixed on the inner walls of both the left and right sides of the upper box body. Correspondingly, a guide notch is opened on the outer walls of both the left and right sides of each mixing plate, and the two guide strips are respectively movably embedded in the two guide notches of each mixing plate.

[0018] Preferably, each of the mixing plates is further provided with a threaded hole, and a screw is inserted and screwed into the uppermost threaded hole, and a pull ring is formed at the end of the screw.

[0019] Compared with the prior art, the advantages of the present invention are as follows: The present invention adopts a transverse stirring method to be suitable for water-based UV resins with low viscosity, thereby speeding up the stirring speed and improving the stirring efficiency; it also uses a mixing component to pre-mix the various formulation materials first, and then uses a stirring body to perform fine mixing, and the stirring body adopts a combination of rotation and revolution, thereby increasing and optimizing the stirring mode, thus greatly improving the mixing effect of the various formulation materials and significantly improving the uniformity of the mixture. Attached Figure Description

[0020] Figure 1 This is an exploded top view of the right front side of the present invention;

[0021] Figure 2This is a top view of the right front side of the spiral mixing channel formed by vertically stacking multiple mixing plates according to the present invention.

[0022] Figure 3 This is a vertical cross-sectional structural diagram of the stirring unit of the present invention;

[0023] Figure 4 For the present invention in Figure 1 A magnified view of the structure at point A in the middle. Detailed Implementation

[0024] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0026] like Figures 1-4 As shown, a stirring device for preparing waterborne UV resin includes a main body 1. The main body 1 includes a lower box 11, a stirring body 14 disposed inside the lower box 11, and a reduction motor 12 disposed outside the lower box 11. The rotation shaft of the reduction motor 12 is connected to the stirring body 14 to drive the stirring body 14 to rotate.

[0027] A mixing assembly 2 is also provided above the main body 1. The mixing assembly 2 includes an upper box 21 that is detachably fixed to the top opening of the lower box 11, and a plurality of mixing plates 22 that are horizontally arranged inside the upper box 21 and stacked from top to bottom. A cavity 211 is provided at the bottom of the upper box 21. The length and width of the mixing plates 22 are greater than the length and width of the cavity 211 to prevent the horizontally placed mixing plates 22 from falling through the cavity 211.

[0028] Each mixing plate 22 has the same number of spiral through holes 221. The upper opening of any spiral through hole 221 is connected to the lower opening of a spiral through hole 221 located above and adjacent to it. The lower opening of any spiral through hole 221 is connected to the upper opening of a spiral through hole 221 located below and adjacent to it.

[0029] A spiral mixing channel 23 is formed between each spiral through hole 221 that is connected to each other from top to bottom. The lower opening of each spiral mixing channel 23 is located inside the cavity 211 and is connected to the top opening of the lower box 11.

[0030] Any two adjacent mixing plates 22 are fitted together to prevent material residue between any two adjacent mixing plates 22. The bottom outer wall of the bottom mixing plate 22 is fitted to the bottom inner wall of the upper box 21 to prevent material from flowing into the cavity 211 through the gap between the bottom mixing plate 22 and the bottom of the upper box 21.

[0031] The stirring body 14 includes a horizontally arranged moving tube 141, a fixed shaft 142 concentrically arranged inside the moving tube 141, and a plurality of stirring units 143 arranged outside the moving tube 141 and distributed sequentially along the length of the moving tube 141. The two ends of the moving tube 141 are rotatably and sealedly connected to the left and right sides of the lower box 11, and the two ends of the fixed shaft 142 extend to the outside of the two ends of the moving tube 141 and are fixed to the outer walls of the left and right sides of the lower box 11.

[0032] The stirring unit 143 includes a stirring shaft 1431 that is rotatably and detachably connected to the moving tube 141 and perpendicular to the central axis of the fixed shaft 142, a stirring block 1432 that is detachably fixed to the end of the stirring shaft 1431, and a fixed plate 1433 that is concentrically sleeved and fixed outside the fixed shaft 142 and located inside the moving tube 141. The root of the stirring shaft 1431 is sealed and extends into the interior of the moving tube 141 and is located to the left or right of the fixed plate 1433. The rotating shaft of the geared motor 12 is connected to one end of the moving tube 141.

[0033] A beveled tooth ring 14311 is formed on the outer peripheral surface of the root of the stirring shaft 1431. Correspondingly, an annular beveled tooth surface 14331 is formed on the outer wall of the fixed plate 1433 facing the root of the stirring shaft 1431, which cooperates with the beveled tooth ring 14311. The beveled tooth ring 14311 meshes on the annular beveled tooth surface 14331.

[0034] The outer diameter of the root of the bevel gear ring 14311 is not greater than the outer diameter of the root of the stirring shaft 1431 so that the bevel gear ring 14311 can be smoothly inserted into the interior of the moving tube 141.

[0035] A sealing sleeve 1434 is also fitted outside the stirring shaft 1431. The sealing sleeve 1434 is inserted between the inner wall and the outer wall of the moving tube 141 on the corresponding side and is perpendicular to the central axis of the fixed shaft 142.

[0036] The stirring unit 143 also includes two diagonally opposite seats 1435 located outside the moving tube 141 and detachably fixed to each other to hold the moving tube 141. The root of the stirring shaft 1431 is rotatably inserted into one of the seats 1435.

[0037] The radial cross-sectional outer contour of the moving tube 141 is square. Multiple annular grooves 1411 are formed on the outer wall of the moving tube 141 in sequence along the length of the moving tube 141. The number of annular grooves 1411 is equal to the number of stirring units 143. The radial cross-sectional outer contour of the annular groove 1411 is square. The sealing sleeve 1434 is inserted and embedded between one of the bottom surfaces of the annular groove 1411 and the inner wall of the moving tube 141.

[0038] Two seat blocks 1435 are fixed diagonally in corresponding annular grooves 1411. The opposite outer walls of the two seat blocks 1435 are respectively attached to two diagonally distributed bottom surfaces in the annular grooves 1411 to prevent the two seat blocks 1435 from shifting along the length of the moving tube 141. A limiting groove 14351 is provided on the opposite outer walls of the two seat blocks 1435. The two inner walls of each limiting groove 14351 are respectively attached to the other two diagonally distributed bottom surfaces to prevent the two seat blocks 1435 from shifting in a direction perpendicular to the central axis of the moving tube 141.

[0039] A vertically arranged guide bar 24 is fixed on the inner walls of the left and right sides of the upper box 21. Correspondingly, a guide notch 222 is opened on the outer walls of the left and right sides of each mixing plate 22. The two guide bars 24 are respectively movably embedded in the two guide notches 222 on each mixing plate 22.

[0040] Each mixing plate 22 also has a threaded hole 223, and a screw 225 is inserted into the uppermost threaded hole 223. The end of the screw 225 also forms a pull ring 2251.

[0041] A driven gear 13 is also fixed on one end of the moving tube 141 near the geared motor 12. Correspondingly, a driving gear 16 is also fixed on the rotating shaft of the geared motor 12, which is concentrically arranged and meshes with the driven gear 13.

[0042] The left and right outer walls of the lower housing 11 are respectively fixed with brackets 15 and end blocks 17. The two ends of the fixed shaft 142 are respectively fixed on the brackets 15 and end blocks 17, and the driven gear 13 is located inside the brackets 15.

[0043] Working principle:

[0044] Each component of the water-based UV resin is poured into the upper chamber 21 through the top opening of the upper chamber 21, above the uppermost mixing plate 22, thus allowing the components to be initially mixed. Subsequently, after flowing through each spiral mixing channel 23, the mixture passes through the cavity 211 and enters the lower chamber 11 through the top opening of the lower chamber 11. During this process, the mixture is divided into a corresponding number of branches according to the number of spiral mixing channels 23. Each branch flows downward along the trajectory of the spiral mixing channel 23, thereby extending the flow path and time of each branch to ensure thorough mixing of the components and preventing excessive flow rate and velocity of the mixture entering the lower chamber 11.

[0045] Start the geared motor 12 to make its rotating shaft rotate, and then drive multiple stirring units 143 to rotate through the moving tube 141 in the stirring body 14. Thus, the mixing materials in the lower box 11 are stirred by the stirring shaft 1431 in each stirring unit 143 in a revolution manner.

[0046] During the above process, the fixed shaft 142 remains stationary, while the stirring shaft 1431 rotates around the fixed shaft 142. Since the bevel gear ring 14311 located at the root of the stirring shaft 1431 meshes with the annular bevel gear surface 14331 on the fixed plate 1433, the stirring shaft 1431 rotates on its own axis while rotating around the fixed shaft 142. Thus, the stirring block 1432 stirs the mixture in the lower box 11 by rotating on its own axis. The simultaneous action of revolution stirring and rotation stirring can greatly improve the mixing uniformity of the mixture.

[0047] To change the length of each spiral mixing channel 23, simply increase or decrease the number of mixing plates 22 from top to bottom, making it flexible and convenient. To remove a mixing plate 22, simply hook the pull ring 2251 with your hand or a tool, then pull the mixing plate 22 vertically upwards until it leaves the upper housing 21. Then rotate the pull ring 2251 to unscrew the screw 225 from the threaded hole 223 on the mixing plate 22, and then screw it into the threaded hole 223 on the uppermost mixing plate 22 inside the upper housing 21. This prevents the mixed material from falling into the lower housing 11 through the threaded hole 223 on each mixing plate 22, and so on. The cooperation between the two guide strips 24 and the two guide notches 222 on each mixing plate 22 prevents the mixing plate 22 from shifting laterally, thereby ensuring that the spiral mixing channels 23 can be accurately connected and that the flow rate of the mixed material is stable.

[0048] To disassemble the stirring shaft 1431, first separate the two seats 1435 from each other, and then pull the stirring shaft 1431 and one of the seats 1435 containing the stirring shaft 1431 outward in a direction perpendicular to the central axis of the fixed shaft 142. This will cause the stirring shaft 1431 to slide outward along the inner wall of the sealing sleeve 1434, thereby pulling out the bevel gear ring 14311 located at the root of the stirring shaft 1431 from the sealing sleeve 1434. To install the stirring shaft 1431, simply reverse the above steps.

[0049] This invention employs a transverse stirring method suitable for water-based UV resins with low viscosity, thereby accelerating the stirring speed and improving stirring efficiency. It also uses the mixing component 2 to perform preliminary mixing of each formulation material first, and then uses the stirring body 14 for fine mixing. The stirring body 14 adopts a combination of rotation and revolution, thereby increasing and optimizing the stirring mode, which greatly improves the mixing effect of each formulation material and significantly improves the uniformity of the mixture.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stirring device for preparing waterborne UV resin, comprising a main body, the main body including a lower chamber, a stirring body disposed inside the lower chamber, and a geared motor disposed outside the lower chamber, the rotating shaft of the geared motor being connected to the stirring body to drive the stirring body to rotate, characterized in that: A mixing assembly is also provided above the main body. The mixing assembly includes a detachable upper box fixed at the top opening of the lower box and multiple mixing plates arranged horizontally inside the upper box and stacked sequentially from top to bottom. A cavity is opened at the bottom of the upper box. The length and width of the mixing plates are greater than the length and width of the cavity to prevent the horizontally placed mixing plates from falling through the cavity. Each of the mixing plates has the same number of spiral through holes. The upper opening of any spiral through hole is connected to the lower opening of the spiral through hole above and adjacent to it, and the lower opening of any spiral through hole is connected to the upper opening of the spiral through hole below and adjacent to it. Each of the spiral through holes that are connected to each other from top to bottom forms a spiral mixing channel. The lower opening of each spiral mixing channel is located inside the cavity and is connected to the top opening of the lower box. Any two adjacent mixing plates are fitted together to prevent material residue between any two adjacent mixing plates. The bottom outer wall of the bottom mixing plate is fitted to the bottom inner wall of the upper box to prevent material from flowing into the cavity through the gap between the bottom mixing plate and the bottom of the upper box. The stirring body includes a horizontally arranged moving tube, a fixed shaft concentrically arranged inside the moving tube, and a plurality of stirring units arranged outside the moving tube and distributed sequentially along the length of the moving tube. The two ends of the moving tube are rotatably sealed and inserted into the left and right sides of the lower box body, and the two ends of the fixed shaft extend to the outside of the two ends of the moving tube and are fixed to the outer walls of the left and right sides of the lower box body. The stirring unit includes a stirring shaft that is rotatably and detachably connected to the moving tube and perpendicular to the central axis of the fixed shaft, a stirring block that is detachably fixed to the end of the stirring shaft, and a fixed plate that is concentrically sleeved and fixed outside the fixed shaft and located inside the moving tube. The root of the stirring shaft is sealed and extends into the interior of the moving tube and is located to the left or right of the fixed plate. The rotating shaft of the geared motor is connected to one end of the moving tube.

2. The stirring device for preparing waterborne UV resin according to claim 1, characterized in that, A conical tooth ring is formed on the outer circumferential surface of the root of the stirring shaft. Correspondingly, an annular conical tooth surface that cooperates with the conical tooth ring is formed on the outer wall of the fixed plate facing the root of the stirring shaft. The conical tooth ring meshes on the annular conical tooth surface. The outer diameter of the root of the conical tooth ring is not greater than the outer diameter of the root of the stirring shaft so that the conical tooth ring can be smoothly inserted into the interior of the moving tube.

3. The stirring device for preparing waterborne UV resin according to claim 1, characterized in that, A sealing sleeve is also fitted outside the stirring shaft. The sealing sleeve is inserted between the inner wall and the outer wall on the corresponding side of the moving tube and is perpendicular to the central axis of the fixed axis.

4. The stirring device for preparing waterborne UV resin according to claim 3, characterized in that, The stirring unit also includes two diagonally opposite seats located outside the moving tube and detachably fixed to hold the moving tube in place. The root of the stirring shaft is rotatably inserted into one of the seats.

5. The stirring apparatus for preparing waterborne UV resin according to claim 4, characterized in that, The radial cross-sectional outer contour of the moving tube is square. Multiple annular grooves are formed on the outer wall of the moving tube along the length of the moving tube. The number of annular grooves is equal to the number of stirring units. The radial cross-sectional outer contour of the annular groove is square. The sealing sleeve is inserted between one of the bottom surfaces of the annular groove and the inner wall of the moving tube.

6. The stirring apparatus for preparing waterborne UV resin according to claim 5, characterized in that, Two seat blocks are fixed diagonally in corresponding annular grooves. The opposite outer walls of the two seat blocks are respectively attached to two diagonally distributed bottom surfaces in the annular grooves to prevent the two seat blocks from shifting along the length of the moving tube. A limiting groove is provided on the opposite outer walls of the two seat blocks. The inner walls on both sides of each limiting groove are respectively attached to the other two diagonally distributed bottom surfaces to prevent the two seat blocks from shifting in a direction perpendicular to the central axis of the moving tube.

7. The stirring apparatus for preparing waterborne UV resin according to claim 1, characterized in that, A vertically arranged guide strip is fixed on the inner walls of both the left and right sides of the upper box. Correspondingly, a guide notch is opened on the outer walls of both the left and right sides of each mixing plate. The two guide strips are respectively movably embedded in the two guide notches of each mixing plate.

8. The stirring apparatus for preparing waterborne UV resin according to claim 1, characterized in that, Each of the mixing plates is also provided with a threaded hole, and a screw is inserted into the uppermost threaded hole. The end of the screw is also formed with a pull ring.

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