A dispersion stirring device for colloidal stirring

Abstract

The present application relates to colloid stirring technical field, and disclose a kind of dispersion stirring device for colloid stirring, including stirring tank, screw assembly and driving part;Stirring rod is vertically arranged in stirring tank and is rotated by driving part, and stirring rod is sequentially installed with stirring part and tooth type dispersing part from top to bottom;Tooth type dispersing part is detachably installed with multiple screw pieces arranged in circumference and located below stirring part, and multiple screw pieces form circular agitation structure;Screw assembly is detachably installed on tooth type dispersing part by one of screw pieces and is transversely arranged.The present application is rotated by stirring part and tooth type dispersing part, forms convection and forced shear dispersing bottom agglomerated powder, continuously sweeps to prevent secondary accumulation, screw piece is detachably installed on tooth type dispersing part, realizes hierarchical refinement, fills in dispersion weak area, can be equipped with self-rotating screw assembly, and agitation position and amplitude are self-adaptively adjusted with rotating speed, effectively prevent peripheral re-agglomeration, guarantee slurry dispersion effect.

Description

Technical Field

[0001] This invention relates to the field of colloid stirring technology, and more particularly to a dispersion stirring device for colloid stirring. Background Technology

[0002] In the pulping process of acrylic conductive adhesives and epoxy conductive adhesives, a mixing tank is usually used as a dispersion device. During operation, the resin matrix, modified tackifying resin, metal powder (such as nickel powder, silver powder, copper powder), diluent and coupling agent are directly added into the tank. The colloid is mixed and dispersed by stirring. The conductive adhesive slurry produced by this pulping process is mainly suitable for the front-end adhesive preparation stage of products such as conductive cloth, conductive tape and electromagnetic shielding film prepared by coating method.

[0003] However, since the density of metal powder is much higher than that of the resin matrix, it is easily settled into the mixing tank area by gravity during the stirring and dispersion process. It is difficult to be effectively dispersed by the stirring blades. The deposited metal powder continues to accumulate and be squeezed at the bottom of the tank, gradually forming an agglomerated block structure. This block structure is difficult to integrate with the resin matrix through conventional stirring. At the same time, in order to break the above agglomerated structure and redisperse the settled powder, it is necessary to extend the stirring time and increase the stirring intensity. This not only reduces the pulping efficiency and increases energy consumption, but also causes abnormal changes in the viscosity of the resin matrix due to prolonged stirring, which ultimately seriously affects the conductivity of the conductive adhesive slurry.

[0004] To address the aforementioned problems, this application proposes a dispersion and stirring device for colloid stirring. Summary of the Invention

[0005] This invention proposes a dispersion and stirring device for colloidal mixing, which solves the problem in related technologies that metal powder has a much higher density than resin matrix, and tends to settle to the bottom of the tank during stirring, accumulating and compressing to form agglomerates. Conventional stirring is difficult to redisperse and fuse them, while prolonged or intensified stirring will reduce efficiency, increase energy consumption, and cause abnormal resin viscosity, ultimately seriously affecting the conductivity of conductive slurry.

[0006] The present invention provides a dispersion and stirring device for colloid stirring, comprising a stirring tank, a spiral assembly and a drive unit;

[0007] The stirring rod is vertically installed inside the mixing tank and is driven to rotate by the drive unit. The stirring rod is equipped with a stirring component and a toothed dispersing component from top to bottom.

[0008] The toothed dispersing component is detachably mounted with multiple circumferentially arranged screw components located below the stirring component, and the multiple screw components form a circular stirring structure;

[0009] The spiral assembly is detachably mounted on the toothed disintegrating component via one of the screw members and is arranged laterally.

[0010] When the stirring rod is driven to rotate by the drive unit, the stirring component, toothed dispersing component and screw component rotate accordingly. The spiral assembly follows the toothed dispersing component and rotates circumferentially in the mixing tank, agitating the rubber material and rotating on its own.

[0011] As a further optimization of the present invention, the toothed dispersing component includes a dispersing disc and dispersing teeth. The dispersing disc located below the stirring component is mounted on the stirring rod, and multiple circumferentially arranged dispersing teeth are installed on the top and bottom surfaces of the dispersing disc.

[0012] As a further optimization of the present invention, the screw component includes a screw body and a nut. The dispersing disc has multiple circumferentially arranged insertion holes, which are located between adjacent dispersing teeth. Each insertion hole contains a vertically arranged screw body located below the stirring component. Each screw body is threaded with two nuts, and the dispersing disc is clamped between the two nuts. Each screw body has a fixed end at its top. The spiral assembly is sleeved on one of the screw bodies and clamped between the dispersing disc and one of the nuts.

[0013] As a further optimization of the present invention, the spiral assembly includes a strip, which is fitted onto one of the screw bodies and clamped between the dispersing disc and one of the nuts. The strip is arranged laterally, and a through-hole channel is opened in the strip. A loading cavity communicating with the through-hole channel is opened in one end of the strip. An elastic element is installed in the loading cavity. One end of the elastic element is rotatably connected to a first spiral element located at the end of the strip. The first spiral element faces the inner wall of the mixing tank. The other end of the elastic element extends into the through-hole channel and is rotatably connected to a second spiral element located below the strip. The second spiral element faces the bottom of the mixing tank.

[0014] As a further optimization of the present invention, the first spiral component includes a first dispersing column and a first spiral blade. The first dispersing column is rotatably connected to one end of the elastic component and located at the end of the strip. The first spiral blade is fixedly mounted on the first dispersing column.

[0015] As a further optimization of the present invention, the second spiral component includes a second dispersing column and a second spiral blade. The second dispersing column is rotatably connected to the other end of the elastic component and located below the strip. The second spiral blade is fixedly mounted on the second dispersing column.

[0016] As a further optimization of the present invention, the elastic element includes a loading cylinder, which is installed in the loading cavity of the strip and arranged laterally. A loading rod arranged laterally is slidably connected inside the loading cylinder and extends out of one end of the loading cylinder. The first dispersion column is rotatably connected to one end of the loading rod. An opening is formed at the other end of the loading cylinder. A disc located at the opening is fixed at the other end of the loading rod. A spring is sleeved on the loading rod, and the two ends of the spring are respectively connected to the inner wall of one end of the loading cylinder and the disc. An L-shaped rod extending into the open channel is installed at the end of the disc. The second dispersion column is rotatably connected to the bottom end of the L-shaped rod.

[0017] As a further optimization of the present invention, the mixing component includes a loading shaft and an anchor paddle, the loading shaft is fixedly mounted on the mixing rod, and anchor paddles are installed on both sides of the loading shaft, and the screw component is located between the toothed disintegrating component and the anchor paddle.

[0018] As a further optimization of the present invention, the driving unit is a motor, a bracket is installed at the bottom of the mixing tank, the motor is installed on the bracket, and the output end of the motor is connected to the bottom end of the stirring rod.

[0019] As a further optimization of the present invention, a conical region is formed at the bottom of the mixing tank, a discharge pipe communicating with the interior of the mixing tank is connected to the bottom of the mixing tank, and a valve is installed on the discharge pipe. A semi-circular cover plate is hinged to the top of the mixing tank, and a feed pipe is connected to the top of the mixing tank.

[0020] The above-described technical solution of the present invention has the following beneficial technical effects:

[0021] 1. By coordinating the rotation of the agitator and the toothed dispersant, an up-and-down circulating convection is formed in the mixing tank. At the same time, the toothed structure of the toothed dispersant forces the metal powder deposited and agglomerated at the bottom of the mixing tank to be sheared and dispersed. The bottom of the mixing tank is continuously scraped to prevent secondary accumulation. Thus, without excessively extending the mixing time or increasing the mixing intensity, the uniformity of the mixing between the metal powder and the resin matrix is ​​improved. This effectively avoids abnormal resin viscosity caused by long-term strong mixing and ensures the stable conductivity of the conductive paste.

[0022] 2. To further improve the dispersing effect on agglomerated materials, this invention installs multiple circumferentially arranged screws on the toothed dispersing component. These screws form a circular structure. When the agglomerated material at the bottom of the mixing tank is dispersed and moves upward by the toothed dispersing component, the screws on the toothed dispersing component can further disperse smaller agglomerated materials. Furthermore, the screws can fill the area between the mixing component and the toothed dispersing component, resulting in more thorough material dispersion. The screws are detachable from the toothed dispersing component. In practical use, the installation of screws on the toothed dispersing component can be selected based on the different material properties. The aforementioned detachable screws on the toothed dispersing component can further refine and break up residual small pieces of material after the agglomerated material is dispersed and rises, filling the weak dispersion area between the mixing component and the toothed dispersing component, achieving graded processing, and making the material dispersion more thorough. The detachable design also enhances the equipment's process adaptability to slurries of different viscosities and metal powders of different particle sizes, avoiding excessive shearing that could adversely affect some sensitive resins.

[0023] 3. To prevent the dispersed and aggregated materials from re-aggregating on the outer periphery of the toothed dispersing component, a spiral assembly can be installed on the toothed dispersing component via one of the screw components. When the stirring rod drives the toothed dispersing component to rotate, the strip drives the first and second spiral components to rotate around the toothed dispersing component. During circumferential rotation, both the first and second spiral components rotate under the action of the material. The first spiral component can agitate the material near the inner wall of the mixing tank, while the second spiral component agitates the material at the bottom of the mixing tank. Similarly, depending on the characteristics of different materials, it is possible to choose whether to install the spiral assembly on the toothed dispersing component. The above design, through the circumferential rotation and self-rotation of the first and second spiral components in the spiral assembly with the toothed dispersing component, actively agitates the material near the inner wall and bottom of the mixing tank, respectively, effectively preventing the dispersed metal powder from re-aggregating and depositing on the outer periphery of the toothed dispersing component, thus expanding the dispersion space. At the same time, the modular design allows for optional installation according to needs, making the equipment more flexible in use.

[0024] 4. Since the first and second spiral components are respectively installed at both ends of the elastic component, when the stirring rod rotates at a high speed, the elastic component drives both the first and second spiral components to move closer to the inner wall of the mixing tank. When the rotation is slower, the elastic component drives the first and second spiral components to move less. By controlling the rotation speed of the stirring rod, the position of the first and second spiral components can be changed, further improving the dispersion effect of the material. The above design controls the displacement amplitude of the first and second spiral components by controlling the rotation speed of the stirring rod, realizing adaptive adjustment of stirring intensity and coverage. It can not only stir for different dispersion stages, but also avoid abnormal fluctuations in the viscosity of the resin matrix caused by single high-intensity stirring, thus ensuring the conductivity of the conductive adhesive. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a dispersion and stirring device for colloidal stirring proposed in this invention.

[0026] Figure 2 This is a schematic diagram of the internal structure of a dispersion and stirring device for colloidal stirring proposed in this invention.

[0027] Figure 3 This is a front view of a dispersion stirring apparatus for colloidal stirring according to the present invention;

[0028] Figure 4 This is a schematic diagram of the mating structure of the stirring rod, stirring component, toothed dispersing component, screw component, and spiral assembly in this invention;

[0029] Figure 5 This is a schematic diagram of the mating structure of the toothed disintegrating component, the screw component, and the helical assembly in this invention;

[0030] Figure 6 For the present invention Figure 5 Enlarged view of A in the middle;

[0031] Figure 7 This is a schematic diagram of the toothed disassembly component in this invention;

[0032] Figure 8 This is a schematic diagram of the spiral assembly in this invention;

[0033] Figure 9 This is an internal cross-sectional view of the strip in this invention;

[0034] Figure 10 This is a schematic diagram of the elastic element in this invention.

[0035] Reference numerals: 1. Mixing tank; 101. Mixing rod; 102. Support; 103. Motor; 104. Discharge pipe; 105. Semi-circular cover plate; 106. Feed pipe; 2. Mixing component; 21. Loading shaft; 22. Anchor paddle; 3. Toothed dispersing component; 31. Dispersing disc; 32. Dispersing teeth; 4. Screw component; 41. Screw body; 42. Nut; 43. End; 5. Spiral assembly; 51. Strip; 511. Open channel; 52. Elastic component; 521. Loading cylinder; 522. Loading rod; 523. Disc; 524. Spring; 525. L-shaped rod; 53. First spiral component; 531. First dispersing column; 532. First spiral blade; 54. Second spiral component; 541. Second dispersing column; 542. Second spiral blade. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0037] like Figure 1-10 As shown, the present invention provides a dispersion and stirring device for colloid stirring, comprising a stirring tank 1, a spiral assembly 5, and a drive unit;

[0038] The stirring rod 101 is vertically installed inside the mixing tank 1 and is driven to rotate by the drive unit. The stirring rod 101 is equipped with a stirring component 2 and a toothed dispersing component 3 from top to bottom.

[0039] Multiple circumferentially arranged screws 4 located below the agitator 2 are detachably mounted on the toothed dispersing component 3, and the multiple screws 4 form a circular agitation structure.

[0040] The spiral assembly 5 is detachably mounted on the toothed disintegrating component 3 via one of the screw components 4 and is arranged laterally.

[0041] When the stirring rod 101 is driven to rotate by the drive unit, the stirring component 2, the toothed dispersing component 3 and the screw component 4 rotate accordingly, and the spiral assembly 5 follows the toothed dispersing component 3 to rotate circumferentially in the mixing tank 1, agitating the rubber material and rotating on its own.

[0042] During operation, the drive unit drives the stirring rod 101 to rotate synchronously with the stirring component 2 and the toothed dispersing component 3. The stirring component 2 rotates in the middle area of ​​the mixing tank 1, generating a convection effect that circulates the colloidal material, causing the upper resin matrix and the lower metal powder to be initially mixed. Since the toothed dispersing component 3 is close to the bottom of the mixing tank 1, when it rotates with the stirring rod 101, it uses its own toothed structure to shear and disperse the metal powder agglomerates that have settled at the bottom, while continuously scraping the bottom of the tank to prevent secondary accumulation of powder. Multiple screw components 4 arranged circumferentially on the toothed dispersing component 3 form a circular stirring structure. As it rotates, the material surging upwards is further agitated, filling the weak dispersion areas between the stirring component 2 and the toothed dispersing component 3. When the toothed dispersing component 3 rotates, the spiral component 5 rotates circumferentially within the mixing tank 1. Simultaneously, its own structure rotates under the resistance of the material, thereby applying additional agitation to the material near the inner wall and bottom of the mixing tank 1. Through the above synergistic effect, effective dispersion of the sedimentation and agglomeration of metal powder is achieved without excessively extending the stirring time or increasing the stirring intensity, avoiding abnormal resin viscosity, and ensuring the stability of the slurry's electrical conductivity.

[0043] It should be noted that since the screw component 4 can be detachably installed on the toothed dispersing component 3, the screw component 4 and the spiral assembly 5 can be selected to be installed on the toothed dispersing component 3 according to the material characteristics. This enhances the equipment's process adaptability to slurries of different viscosities and metal powders of different particle sizes, and avoids excessive shearing from causing adverse effects on some sensitive resins.

[0044] In this embodiment, the toothed dispersing component 3 includes a dispersing disc 31 and dispersing teeth 32. The dispersing disc 31 located below the stirring component 2 is mounted on the stirring rod 101. Multiple circumferentially arranged dispersing teeth 32 are installed on the top and bottom surfaces of the dispersing disc 31.

[0045] The stirring rod 101 drives the dispersing disc 31 to rotate as a whole. The dispersing teeth 32 on the bottom surface of the dispersing disc 31 continuously scrape and disperse the metal powder agglomerates deposited at the bottom of the mixing tank 1 in close contact with the conical area at the bottom of the tank, avoiding the formation of dense clumps due to gravity accumulation. The dispersing teeth 32 on the top surface of the dispersing disc 31 perform secondary shearing on the powder floating upward after being dispersed, preventing small particles from re-agglomerating. The upper and lower double-layer dispersing teeth 32 form a bidirectional shearing surface, which improves the dispersing efficiency of the metal powder at the bottom of the mixing tank 1, reduces the powder deposition residence time, reduces the subsequent stirring load, shortens the overall pulping time, and reduces energy consumption.

[0046] In this embodiment, the screw component 4 includes a screw body 41 and a nut 42. The dispersing disc 31 has multiple circumferentially arranged insertion holes, which are located between adjacent dispersing teeth 32. Each insertion hole contains a vertically arranged screw body 41 located below the stirring component 2. Each screw body 41 is threaded with two nuts 42, and the dispersing disc 31 is clamped between the two nuts 42. Each screw body 41 has a fixed end 43 at its top. The spiral assembly 5 is sleeved on one of the screw bodies 41 and clamped between the dispersing disc 31 and one of the nuts 42.

[0047] During installation, the screw body 41 is inserted into the corresponding hole, and the dispersing disc 31 is clamped between the upper and lower nuts 42. The screw body 41 is fixed by tightening the nuts 42. The end 43 at the top of the screw body 41 plays a screwing role. When the dispersing disc 31 rotates, all the screw bodies 41 rotate around the stirring rod 101 together. Since the surface of the screw body 41 has a threaded structure, it generates a shearing and diversion effect on the surrounding slurry when it rotates, which can further refine the small agglomerates that rise after being initially dispersed by the toothed dispersing part 3.

[0048] It should be noted that the spiral assembly 5 is sleeved on one of the screw bodies 41 and is also clamped between the dispersing disc 31 and the nut 42, which facilitates the disassembly and assembly of the spiral assembly 5. The operator can choose whether to install the screw body 41 and the spiral assembly 5 on the dispersing disc 31 as needed, which further enhances the equipment's process adaptability to slurries of different viscosities and metal powders of different particle sizes, and avoids excessive shearing from causing adverse effects on some sensitive resins.

[0049] It should be further noted that if the spiral assembly 5 malfunctions, the corresponding nut 42 can be loosened to remove the spiral assembly 5 from the screw body 41 for repair.

[0050] In this embodiment, the spiral assembly 5 includes a strip 51, which is fitted onto one of the screw bodies 41 and clamped between the dispersing disc 31 and one of the nuts 42. The strip 51 is arranged laterally, and a through-hole channel 511 is opened in the strip 51. A loading cavity communicating with the through-hole channel 511 is opened in one end of the strip 51. An elastic member 52 is installed in the loading cavity. One end of the elastic member 52 is rotatably connected to a first spiral member 53 located at the end of the strip 51. The first spiral member 53 faces the inner wall of the mixing tank 1. The other end of the elastic member 52 extends into the through-hole channel 511 and is rotatably connected to a second spiral member 54 located below the strip 51. The second spiral member 54 faces the bottom of the mixing tank 1.

[0051] To prevent the dispersed, agglomerated material from re-agglomerating away from the outer periphery of the toothed dispersing member 3, a spiral assembly 5 can be installed on the toothed dispersing member 3 via one of the screw components 4. The main body of the spiral assembly 5 is a strip 51, which contains an elastic element 52. One end of the elastic element 52 is rotatably connected to a first spiral element 53 facing the inner wall of the mixing tank 1, and the other end is rotatably connected to a second spiral element 54 facing the bottom of the mixing tank 1. When the stirring rod 101 drives the toothed dispersing member 3 to rotate, the strip 51 drives the first spiral element 53 and the second spiral element 54 to rotate circumferentially around the toothed dispersing member 3. During circumferential rotation, both the first spiral element 53 and the second spiral element 54 are subjected to the action of the material. The first spiral component 53 can agitate the material near the inner wall of the mixing tank 1, and the second spiral component 54 can agitate the material at the bottom of the mixing tank 1. Similarly, depending on the characteristics of different materials, it is possible to choose whether to install the spiral assembly 5 on the toothed dispersing component 3. The above design uses the first spiral component 53 and the second spiral component 54 in the spiral assembly 5 to rotate around the toothed dispersing component 3 and to actively agitate the material near the inner wall and bottom of the mixing tank 1, respectively. This effectively prevents the dispersed metal powder from re-aggregating and depositing in the outer peripheral area away from the toothed dispersing component 3, thus expanding the dispersion space. At the same time, the modular design can be selected according to needs, making the equipment more flexible in use.

[0052] Since the first spiral component 53 and the second spiral component 54 are respectively installed at both ends of the elastic component 52, when the stirring rod 101 rotates at a relatively fast speed, the elastic component 52 drives the first spiral component 53 and the second spiral component 54 to move closer to the inner wall of the mixing tank 1. When the rotation is slower, the elastic component 52 drives the first spiral component 53 and the second spiral component 54 to move less. By controlling the rotation speed of the stirring rod 101, the position of the first spiral component 53 and the second spiral component 54 can be changed, further improving the dispersion effect of the material. The above design controls the displacement amplitude of the first spiral component 53 and the second spiral component 54 by controlling the rotation speed of the stirring rod 101, realizing the adaptive adjustment of stirring intensity and coverage. It can not only stir for different dispersion stages, but also avoid abnormal fluctuations in the viscosity of the resin matrix caused by single high-intensity stirring, thus ensuring the conductivity of the conductive adhesive paste.

[0053] In this embodiment, the first spiral component 53 includes a first dispersing column 531 and a first spiral blade 532. The first dispersing column 531 is rotatably connected to one end of the elastic component 52 and located at the end of the strip 51. The first spiral blade 532 is fixedly mounted on the first dispersing column 531.

[0054] When the strip 51 rotates circumferentially with the dispersing disc 31, the first dispersing column 531 and the first spiral blade 532 on it rotate accordingly. The impact force of the slurry on the first spiral blade 532 causes the first dispersing column 531 to rotate, and the first spiral blade 532 stirs the slurry near the inner wall of the mixing tank 1, thus avoiding the sedimentation and accumulation of metal powder on the inner wall of the mixing tank 1 far from the central mixing area.

[0055] In this embodiment, the second spiral member 54 includes a second dispersing column 541 and a second spiral blade 542. The second dispersing column 541 is rotatably connected to the other end of the elastic member 52 and located below the strip 51. The second spiral blade 542 is fixedly mounted on the second dispersing column 541.

[0056] When the strip 51 operates, it synchronously drives the second dispersion column 541 to move in a ring along the bottom of the mixing tank 1. The high-density colloid at the bottom washes over the second spiral blade 542, driving the second dispersion column 541 to rotate. The second spiral blade 542 generates an upward conveying flow, which continuously lifts the metal powder that has been broken up by the dispersion teeth 32 at the bottom of the mixing tank 1, preventing the broken powder from settling and accumulating again. It forms a coordinated crushing effect with the dispersion teeth 32 on the bottom surface of the dispersing disc 31, continuously renewing the colloid at the bottom of the mixing tank 1, effectively reducing the probability of powder agglomeration and shortening the mixing time required for colloid homogenization.

[0057] In this embodiment, the elastic element 52 includes a loading cylinder 521, which is installed in the loading cavity of the strip 51 and arranged laterally. A loading rod 522 is slidably connected inside the loading cylinder 521 and extends out of one end of the loading cylinder 521. A first dispersion column 531 is rotatably connected to one end of the loading rod 522. An opening is formed at the other end of the loading cylinder 521. A disc 523 located at the opening is fixed at the other end of the loading rod 522. A spring 524 is sleeved on the loading rod 522, and the two ends of the spring 524 are respectively connected to the inner wall of one end of the loading cylinder 521 and the disc 523. An L-shaped rod 525 extending into the open channel 511 is installed at the end of the disc 523. A second dispersion column 541 is rotatably connected to the bottom end of the L-shaped rod 525.

[0058] When the stirring rod 101 increases its speed, the first spiral component 53 is subjected to centrifugal force, pulling the loading rod 522 towards the inner wall of the mixing tank 1. The disc 523 moves along with the compression spring 524, and the second spiral component 54 connected to the L-shaped rod 525 also moves along with it. The first spiral component 53 moves closer to the tank wall, expanding the stirring range on the wall surface. When the speed decreases, the spring 524 rebounds, pulling the loading rod 522 back, and the first spiral component 53 moves away from the inner wall of the mixing tank 1, adapting to the low-intensity dispersion requirements of low-viscosity colloids. The disc 523 at the end of the loading rod 522 simultaneously drives the L-shaped rod 525 to move laterally, adjusting the distance between the second spiral component 54 and the stirring rod 101. The above design controls the displacement amplitude of the first spiral component 53 and the second spiral component 54 by controlling the speed of the stirring rod 101, realizing adaptive adjustment of stirring intensity and coverage. It can stir for different dispersion stages and avoid abnormal fluctuations in the viscosity of the resin matrix caused by single high-intensity stirring, thus ensuring the conductivity of the conductive slurry.

[0059] It should be noted that: one end of the loading cylinder 521 has a through hole for the smooth sliding of the disc 523, which is not shown in the figure. This is existing technology and will not be elaborated on here.

[0060] It should be further noted that in actual use, the elastic element 52 may not be provided in the spiral assembly 5 as required. It is sufficient to allow the first spiral element 53 to be rotatably connected to one end of the strip 51 and the second spiral element 54 to be rotatably connected to the bottom of the strip 51.

[0061] In this embodiment, the mixing component 2 includes a loading shaft 21 and an anchor 22. The loading shaft 21 is fixedly mounted on the mixing rod 101, and anchors 22 are installed on both sides of the loading shaft 21. The screw component 4 is located between the toothed dispersing component 3 and the anchor 22.

[0062] The stirring rod 101 drives the loading shaft 21 and the two anchor paddles 22 to rotate synchronously. The anchor paddles 22 stir the colloid in the upper part of the mixing tank 1, forming a circulating convection field from top to bottom and from bottom to top. The metal powder floating at the bottom of the mixing tank 1 is crushed by the toothed dispersing component 3, the screw component 4, and the spiral assembly 5. It is then transported upward to the middle of the mixing tank 1 by the convection field. The anchor paddles 22 fully integrate the powder with the resin and additives. The anchor paddles 22 and the screw component 4 below are arranged in layers to form a two-stage dispersion structure of bottom layer crushing and middle layer mixing, which improves the overall material uniformity and solves the defects of traditional single stirring paddles that cannot circulate up and down and powder stagnation at the bottom of the mixing tank 1.

[0063] In this embodiment, the driving unit is a motor 103. A bracket 102 is installed at the bottom of the mixing tank 1, and the motor 103 is installed on the bracket 102. The output end of the motor 103 is connected to the bottom end of the stirring rod 101. During operation, the motor 103 drives the stirring rod 101 to synchronously drive the stirring component 2, the toothed dispersing component 3, the screw component 4 and the spiral assembly 5 to rotate, so that the materials are fully mixed.

[0064] In this embodiment, a conical region is formed at the bottom of the mixing tank 1. The bottom of the mixing tank 1 is connected to a discharge pipe 104 that communicates with its interior, and a valve is installed on the discharge pipe 104. A semi-circular cover plate 105 is hinged to the top of the mixing tank 1, and a feed pipe 106 is connected to the top of the mixing tank 1.

[0065] When feeding materials, the semi-circular cover plate 105 can be opened to put the raw materials into the mixing tank 1. The auxiliary materials can be sent into the mixing tank 1 through the feed pipe 106. After feeding is completed, the semi-circular cover plate 105 closes and seals the mixing tank 1 to prevent the colloid from splashing and the solvent from evaporating during the mixing process. The conical area at the bottom of the mixing tank 1 guides the high-density metal powder to naturally gather towards the center. All the settled powder is concentrated in the working range of the toothed dispersing component 3 and the spiral component 5, which improves the dispersing efficiency. After the mixing is completed, the discharge pipe 104 valve is opened to completely discharge the mixed conductive slurry by the weight of the conical bottom. The conical bottom structure, combined with the bottom dispersing structure, effectively reduces the accumulation of powder in dead corners.

[0066] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A dispersion stirring device for colloid stirring, characterized in that, It includes a mixing tank (1), a spiral assembly (5), and a drive unit; The stirring rod (101) is vertically arranged inside the mixing tank (1) and is driven to rotate by the driving unit. The stirring rod (101) is equipped with a stirring component (2) and a toothed dispersing component (3) from top to bottom. The toothed dispersing component (3) is detachably mounted with multiple circumferentially arranged screw components (4) located below the stirring component (2), and the multiple screw components (4) form a circular stirring structure; The spiral assembly (5) is detachably mounted on the toothed disintegrating component (3) and arranged laterally via one of the screw components (4); When the stirring rod (101) is driven to rotate by the drive unit, the stirring component (2), the toothed dispersing component (3) and the screw component (4) rotate accordingly, and the spiral assembly (5) follows the toothed dispersing component (3) to rotate circumferentially in the mixing tank (1), agitating the rubber material and rotating on its own.

2. The dispersion and stirring device for colloid stirring according to claim 1, characterized in that, The toothed dispersing component (3) includes a dispersing disc (31) and dispersing teeth (32). The stirring rod (101) is fitted with a dispersing disc (31) located below the stirring component (2). The top and bottom surfaces of the dispersing disc (31) are each equipped with a plurality of circumferentially arranged dispersing teeth (32).

3. The dispersion and stirring device for colloid stirring according to claim 2, characterized in that, The screw component (4) includes a screw body (41) and a nut (42). The dispersing disc (31) has multiple circumferentially arranged insertion holes, which are located between adjacent dispersing teeth (32). Each insertion hole is fitted with a vertically arranged screw body (41) located below the stirring component (2). Each screw body (41) is threaded with two nuts (42), and the dispersing disc (31) is clamped between the two nuts (42). Each screw body (41) has an end head (43) fixed at its top. The spiral assembly (5) is fitted onto one of the screw bodies (41) and clamped between the dispersing disc (31) and one of the nuts (42).

4. A dispersion stirring device for colloid stirring according to claim 3, characterized in that, The spiral assembly (5) includes a strip (51), which is fitted onto one of the screw bodies (41) and clamped between the dispersing disc (31) and one of the nuts (42). The strip (51) is arranged laterally. A through-hole channel (511) is provided in the strip (51), and a loading cavity communicating with the open channel (511) is provided at one end of the strip (51). An elastic element (52) is installed in the loading cavity. One end of the elastic element (52) is rotatably connected to a first spiral element (53) located at the end of the strip (51). The first spiral element (53) faces the inner wall of the mixing tank (1). The other end of the elastic element (52) extends into the open channel (511) and is rotatably connected to a second spiral element (54) located below the strip (51). The second spiral element (54) faces the bottom of the mixing tank (1).

5. A dispersion stirring device for colloid stirring according to claim 4, characterized in that, The first spiral component (53) includes a first dispersing column (531) and a first spiral blade (532). The first dispersing column (531) is rotatably connected to one end of the elastic component (52) and located at the end of the strip (51). The first spiral blade (532) is fixedly mounted on the first dispersing column (531).

6. A dispersion stirring apparatus for colloid stirring according to claim 5, characterized in that, The second spiral component (54) includes a second dispersing column (541) and a second spiral blade (542). The second dispersing column (541) is rotatably connected to the other end of the elastic component (52) and located below the strip (51). The second spiral blade (542) is fixedly mounted on the second dispersing column (541).

7. A dispersion stirring apparatus for colloid stirring according to claim 6, characterized in that, The elastic element (52) includes a loading cylinder (521), which is installed in the loading cavity of the strip (51) and arranged laterally. A loading rod (522) is slidably connected inside the loading cylinder (521) and extends out of one end of the loading cylinder (521). The first dispersion column (531) is rotatably connected to one end of the loading rod (522). An opening is formed at the other end of the loading cylinder (521). A disc (523) located at the opening is fixed at the other end of the loading rod (522). A spring (524) is sleeved on the loading rod (522), and the two ends of the spring (524) are respectively connected to the inner wall of one end of the loading cylinder (521) and the disc (523). An L-shaped rod (525) extending into the open channel (511) is installed at the end of the disc (523). The second dispersion column (541) is rotatably connected to the bottom end of the L-shaped rod (525).

8. A dispersion stirring device for colloid stirring according to claim 1, characterized in that, The mixing component (2) includes a loading shaft (21) and an anchor (22). The loading shaft (21) is fixedly mounted on the mixing rod (101), and anchors (22) are installed on both sides of the loading shaft (21). The screw component (4) is located between the toothed disintegrating component (3) and the anchor (22).

9. A dispersion stirring device for colloid stirring according to claim 1, characterized in that, The driving unit is a motor (103), and a bracket (102) is installed at the bottom of the mixing tank (1). The motor (103) is installed on the bracket (102), and the output end of the motor (103) is connected to the bottom end of the stirring rod (101).

10. A dispersion stirring apparatus for colloid stirring according to claim 1, characterized in that, The bottom of the mixing tank (1) forms a conical region. The bottom of the mixing tank (1) is connected to a discharge pipe (104) that communicates with its interior. A valve is installed on the discharge pipe (104). A semi-circular cover plate (105) is hinged to the top of the mixing tank (1). A feed pipe (106) is connected to the top of the mixing tank (1).

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