JP2022033716A - Triaxial planetary mixer - Google Patents

Abstract

To provide a triaxial planetary mixer which stirs particle aggregates of a raw material, to achieve good dispersion effect and improve production efficiency.SOLUTION: A triaxial planetary mixer comprises a box body 2, a gear box 3, and a stirring barrel 4. The triaxial planetary mixer further comprises: a first transmission unit 31 connected to a first driving motor 21; and a second transmission unit 32 connected to a second driving motor 22, and is provided with: two low speed gears 33 assembled to the first transmission unit 31; one high speed gear 34 assembled to the second transmission gear 32; two lower speed stirring assemblies 42 connected to the low speed gears 33; and one high speed stirring assembly 43 connected to the high speed gear 34. The high speed stirring assembly 43 and the low speed stirring assemblies 42 stir while rotating along an inner wall of a stirring tank 41 below the gear box 3 to revolve and auto-rotate.SELECTED DRAWING: Figure 1

Description

The present invention relates to a triaxial planetary mixer, and in particular, a particle aggregate (a mass of aggregated particles) is dispersed at high speed and uniformly on a high-speed shaft, and is mixed and kneaded in a tangential direction while the low-speed shafts intersect to form a raw material. The present invention relates to a triaxial planetary mixer that achieves a good dispersion effect and improves production efficiency by stirring the particle aggregates of the above.

The types and uses of conventional mixers differ depending on the purpose of use, but all are equipped with barrels, and after loading the material, a stirring blade is attached to the spindle to perform mixing work, and the powder and material are evenly dispersed. It can be reused after achieving its purpose.
However, although general mixers are suitable for small quantities or applications with little change in material structure, there are cases where needs, powders, material updates, and material types are different from the past due to advances in scientific technology. Many are more demanding on the role of the mixer, but traditional mixers can only meet general requirements, with higher volume, more sophisticated distribution requirements and consistent quality products at the same time. Multi-axis planetary mixers have been developed to face the problem of users having to find breakthroughs in the manufacturing process.
Common mechanical high speed mixing on the market operates at rotation speeds from 600 rpm to 7200 rpm, all uses belt operation and includes a belt adjuster, but when the belt operates for a long time Loosening of the belt, overheating of the belt, and slippage are likely to occur, which may cause torque cloth and malfunction.Furthermore, the cabinet space is narrow, the belt adjuster is not easy to install, and it is easy to malfunction if the belt idler is replaced. It affects production and causes the risk of production suspension and shift to repair.
Further, in general, the center of the 4-axis arm of the conventional 4-axis arm type planetary mixer is a diamond shape, and each axis occupies 1/6 of the arrangement space. The heart is small, it is easy to shake, the dynamic load of the bearing is weak, the shaft is easy to deform, and it is easy to bend. The high-speed dispersion blade has a low dispersion effect and is inefficient because it may collide with the low-speed blade due to lack of space.
In general, the center of the 2-axis arm of the conventional 2-axis arm type planetary mixer is a single character, the high-speed dispersion occupies two-fifths of the barrel diameter area, the space is large, and the bearing and the axis center. Because it is suitable for expansion, it is hard to shake, the dynamic load of the bearing is strong, the shaft is not easy to deform and bend, and the dispersion blade can also increase the dispersion, but because the high and low speed shafts are lined up in a row. It is known that the low-speed shaft is only mixed without kneading, and the blank convection on both sides cannot be operated only by revolving, and the efficiency effect of dispersion is poor.

Therefore, how to solve the above-mentioned conventional problems and shortcomings is an urgent direction for the inventor of the present invention and related manufacturers engaged in this industry to research and improve.

In view of this, in order to effectively solve the above problems, the main object of the present invention is to disperse the particle aggregates at high speed and uniformly on the high-speed shaft, and to mix the particle aggregates in the tangential direction while intersecting the low-speed shafts. And to provide a triaxial planetary mixer that achieves a good dispersion effect and improves production efficiency by kneading and stirring the particle aggregates of the raw materials.

Another object of the present invention is to provide a triaxial planetary mixer operating in full gear to avoid the problem of using a belt.

Another object of the present invention is to provide a triaxial planetary mixer in which the revolution or rotation range covers the inside of the stirring tank and enhances the dispersion efficiency.

To achieve the above object, the present invention provides a triaxial planetary mixer including a box body, a gearbox, and a stirring barrel. A first drive motor and a second drive motor are provided inside the box body. An expansion tank is provided above the box body. The gearbox is installed below the box body, and has a first transmission unit and a second transmission unit in the gearbox. The first transmission unit is connected to the first drive motor, and the second transmission unit is connected to the second drive motor.
Further, two low-speed gears and one high-speed gear are provided in the gearbox, the low-speed gears are mutually assembled with the first transmission unit, and the low-speed gears further include a low-speed shaft. On the other hand, the high-speed gear is mutually assembled with the second transmission unit, the high-speed gear is further provided with a high-speed shaft, and the stirring barrel is provided below the gearbox.
A stirring tank is formed in the stirring barrel, and two low-speed stirring assemblies and one high-speed stirring assembly are provided in the stirring barrel. The low speed agitation assembly connects to the low speed shaft and the high speed agitation assembly connects to the high speed shaft. The two slow stirring assemblies occupy 58% to 63% of the stirring tank area. The fast stirring assembly occupies 37% to 42% of the stirring tank area. Therefore, all the space of the stirring tank is filled with the low-speed stirring assembly and the high-speed stirring assembly, and the particles are stirred while rotating and rotating around the inner wall of the stirring tank at high speed and uniformly. Along with the dispersion, the low-speed shafts are mixed and kneaded in the tangential direction while intersecting, and the particle aggregates of the raw materials are agitated to achieve a good dispersion effect and improve the production efficiency. In addition, it operates in full gear to avoid the problem of using the belt.

According to one embodiment of the triaxial planetary mixer according to the present invention, the first drive motor has a first transmission assembly connected to the first transmission unit.

According to one embodiment of the triaxial planetary mixer according to the present invention, the second drive motor has a second transmission assembly connected to the second transmission unit.

According to one embodiment of the triaxial planetary mixer according to the present invention, the expansion tank has a communication passage that communicates with the inside of the gearbox.

According to an embodiment of the triaxial planetary mixer according to the present invention, a counterweight is further provided in the gearbox.

According to one embodiment of the triaxial planetary mixer according to the present invention, the first drive motor has a slow speed assembly.

According to one embodiment of the triaxial planetary mixer according to the present invention, the high speed stirring assembly is a stirable assembly such as a dispersion blade, a butterfly blade, a paddle blade, a disc blade or a rod blade.

According to one embodiment of the triaxial planetary mixer according to the present invention, the low speed stirring assembly is a straight frame blade or a spiral blade.

According to an embodiment of a triaxial planetary mixer according to the present invention, the slow stirring assembly has an upper side portion and a lower side portion. The low speed agitation assembly is stretched and connected to both ends of the upper side portion and the lower side portion at side portions, respectively, and the low speed agitation assembly is connected to the low speed shaft at the upper side portion.

According to an embodiment of the triaxial planetary mixer according to the present invention, the cross-sectional shape of the side portion is a mirror image symmetric hexagon having a maximum internal angle of 120 degrees or less and a minimum internal angle of 70 to 78 degrees. Consists of
The length of the upper side is greater than the distance between the low speed shafts of the adjacent low speed stirring assemblies.
Each of the low speed stirring assemblies revolves and at the same time rotates around each of the low speed shafts.
The upper side and the lower side are arranged so as to be alternately X-shaped in projection.
The side portion is configured to have a mirror image symmetric hexagonal cross-sectional shape with a maximum internal angle of 120 degrees or less and a minimum internal angle of 70 to 78 degrees.
The horizontal maximum width (L), vertical maximum width (W), and minimum side length (N) of the mirror image symmetric hexagon satisfy the following equations (1) and (2).
6: 5 ≤ L: W ≤ 7: 5 (1)
15: 5 ≦ L: N ≦ 40: 5 (2)

FIG. 1 is a schematic combination diagram of a triaxial planetary mixer according to the present invention. FIG. 2 is a partial schematic view of the triaxial planetary mixer according to the present invention. FIG. 3 (A) is a partial schematic view of a low speed stirring assembly of a triaxial planetary mixer according to the present invention. FIG. 3B is a schematic view of the cross-sectional angle of FIG. 3A. FIG. 4 is a schematic diagram of a partially implemented operation of the triaxial planetary mixer according to the present invention.

The above object of the present invention and its structural and functional features will be described based on preferred embodiments of the accompanying drawings.

1, FIG. 2, FIGS. 3 (A) and 3 (B) are a schematic combination diagram, a partial schematic diagram, a partial schematic diagram of the triaxial planetary mixer according to the present invention, and a partial schematic diagram and a cross-sectional angle of the low-speed stirring assembly, respectively. It is a schematic diagram. First, as is clear from the figure, the triaxial planetary mixer includes a box body 2, a gearbox 3, and a stirring barrel 4.

A first drive motor 21 and a second drive motor 22 are provided inside the box body 2. The first drive motor 21 has a first transmission assembly 211 and a slow speed assembly 212. Further, the expansion tank 23 is provided in the box body 2. The expansion tank 23 has a communication passage 231. Moreover, a through hole 232 is formed in the expansion tank.

Here, the gearbox 3 is provided at the bottom of the box body 2. One end of the communication passage 2311 of the expansion tank 23 communicates with the gearbox 3, and further, a first transmission unit 31 and a second transmission unit 32 are provided in the gearbox 3. The first transmission unit 31 interconnects with the first transmission assembly 211, and the second transmission unit 32 interconnects with the second transmission assembly 221.
The gearbox 3 further includes two low-speed gears 33 and one high-speed gear 34, and the low-speed gears 33 are mutually assembled with the first transmission unit 31. A low-speed shaft 331 is provided below the low-speed gear 33, while the high-speed gear 34 is mutually assembled with the second transmission unit 32. A high-speed shaft 341 is provided below the high-speed gear 34, and a counterweight 35 is further provided in the gearbox 3.

The stirring barrel 4 is provided below the gearbox 3, and a stirring tank 41 is formed inside the stirring barrel 4. Further, two low-speed stirring assemblies 42 and one high-speed stirring assembly 43 are provided in the stirring barrel 4.
The low speed stirring assembly 42 is connected to the low speed shaft 331, and the two low speed stirring assemblies 42 occupy 37% to 42% of the area of the stirring tank 41. Further, the high-speed stirring assembly 43 is connected to the high-speed shaft 341, and the high-speed stirring assembly 43 occupies 37% to 42% of the area of the stirring tank 41. In the high-speed stirring assembly 43, the raw material particles and the resin are uniformly mixed with a dispersion blade, a butterfly blade, a paddle blade, a disk type blade, a rod type blade, or the like according to the characteristics of the raw material molecular particles, and the molecular particles are desired. The shape can be reached. The low-speed stirring assembly 42 can uniformly mix the raw material particles and the resin with a straight frame blade, a spiral blade, or the like to reach the desired shape of the molecular particles.

The slow stirring assembly 42 further comprises an upper side portion 421 and a lower side portion 422. The low-speed stirring assembly 42 is extended and connected to both ends of the upper side portion 421 and the lower side portion 422 by side side portions 423, respectively. The low speed stirring assembly 42 is connected to the low speed shaft 331 at the upper side portion 421. The length of the upper side portion 421 is larger than the distance between the low speed shafts 331 of the adjacent low speed stirring assemblies 42. Each of the low-speed stirring assemblies 42 revolves and at the same time rotates around the low-speed shaft 331, and the upper side portion 421 and the lower side portion 422 are alternately arranged so as to form an X shape in projection. ..

Further, from the viewpoint of the uniformity of kneading and the stirring effect, the side portion 423 is appropriately configured to have a cross-sectional shape of either a three-way symmetric hexagon, an equiangular hexagon, a regular hexagon, or a mirror image symmetric hexagon. It is preferable to be done. More preferably, it forms a mirror image symmetric hexagon as shown in FIGS. 3 (A) and 3 (B).
That is, the side side portion 423 is configured to have a cross-sectional shape of a mirror image symmetrical hexagon having a maximum internal angle of 120 degrees or less and a minimum internal angle of 70 degrees to 78 degrees. Further, as shown in FIG. 3 (B), the maximum width (L) in the horizontal direction, the maximum width (W) in the vertical direction, and the length (N) of the minimum side of this mirror image symmetric hexagon are given by the following equation (1). Satisfy (2).
6: 5 ≤ L: W ≤ 7: 5 (1)
15: 5 ≤ L: N ≤ 40: 5 (2)

Further, from the viewpoint of improving the structural strength of the side side portion 423 and avoiding the occurrence of acute angle cracks, each apex angle of the mirror image symmetrical hexagon of the side side portion 423 is further formed as an arc angle. For example, arc angles having radii of curvature r1 and r2 as shown in FIG. 3B may be formed. Further, from the viewpoint of shortening the residence delay time and enhancing the stirring effect, the radius of curvature r1 and r2 of the arc angle is preferably in the range of 1/12 to 1/8 of the maximum lateral width (L). More preferably, it is in the range of 1/11 to 1/9. On the other hand, r1 and r2 may be the same or different.

Further, FIG. 4 is a schematic diagram of a partially implemented operation of the triaxial planetary mixer according to the present invention. Referring to FIG. 4 together with the drawings, when the triaxial planetary mixer is started, the first drive motor 21 is transmitted via the first transmission assembly 211 and the slow speed assembly 212. The unit 31 is revolved, and the first transmission unit 31 rotates at a low speed via the slow speed assembly 212, and at the same time as the first transmission unit 31 rotates, the low speed gear 33 rotates on its axis, and the low speed gear 33 is rotated. At the same time as the rotation of the shaft 331, the low speed shaft 331 revolves and rotates in the stirring barrel 4 to perform stirring.
Further, the second drive motor 22 revolves the second transmission unit 32 via the second transmission assembly 221 and rotates the high-speed gear 34 at the same time as the second transmission unit 32 rotates. At the same time as the high-speed gear 34 rotates, the high-speed shaft 341 revolves and rotates in the stirring barrel 4 to perform stirring.
Further, the two slow stirring assemblies 42 occupy 58% to 63% of the area of the stirring tank 41. The high speed stirring assembly 43 occupies 37% to 42% of the area of the stirring tank 41. Therefore, the low-speed agitation assembly 42 and the high-speed agitation assembly 43 revolve around each other along the inner wall of the agitation tank 41 to agitate, and the high-speed agitation assembly 43 accounts for 58% to 63% of the area of the agitation tank 41. Occupy. Therefore, the rotatable space is large, and when the rotatable space is large, the bearing and the axis used thereof can be expanded, so that the bearing does not easily shake, the dynamic load of the bearing is strong, and the shaft is deformed. It is difficult, the range of the blades used can be increased, and the effect of its dispersion effect efficiency can be reached.
Further, the space for rotation of the high-speed stirring assembly 43 is small, and the space is quickly filled together with the revolution, and the low-speed stirring assembly 42 is kneaded and mixed, both of which mix a mass of raw material aggregate particles, and convection and dispersion efficiency. High effect can be achieved rapidly.

Further, by arranging the triaxial planetary mixer in the gearbox 3 in full gear, the problem caused by the conventional belt operation can be solved, and the positive pressure gas generated by the low speed gear 33 and the high speed gear 34 can be solved. Is discharged to the expansion tank 23 via the communication passage 231 and then discharged from the through hole 232 of the expansion tank 23.
The expansion tank 23 can recover excess lubricating oil from the gear operation and circulate it to the gearbox 3 after shutdown to maintain and replenish the gear lubrication for a long period of time.
Further, the two low-speed stirring assemblies 42 and one high-speed stirring assembly 43 in the stirring barrel 4 form a triangular arrangement position, and the two low-speed stirring assemblies are provided on one side, while the high-speed stirring assembly 43 is provided on the other side. It is provided on the side. Therefore, by providing the counterweight 35 in the gearbox 3, the balance can be maintained when the gearbox 3 revolves or rotates, and the planetary mixer is prevented from shaking or vibrating due to the imbalance. be able to.

Although the present invention has been described in detail above, the above description is merely a preferred embodiment of the present invention and does not limit the scope of the present invention, that is, according to the claims of the present invention. The uniform changes and modifications to be made should belong to the claims of the present invention.

1 Triaxial planetary mixer 2 Box body 21 First drive motor 221 First transmission assembly 212 Slow speed assembly 22 Second drive motor 221 Second transmission assembly 23 Expansion tank 231 Communication passage 3 Gearbox 31 First Transmission unit 32 Second transmission unit 33 Low speed gear 331 Low speed shaft.
34 High-speed gear 341 High-speed shaft 35 Counterweight 4 Stirring barrel 41 Stirring tank 42 Low-speed stirring assembly 421 Upper side 422 Lower side.
423 Side 43 High Speed Stirring Assembly

Claims (10)

A box body in which a first drive motor and a second drive motor are provided inside, and an expansion tank having a through hole formed above is provided, and a box body.
It has a first transmission unit connected to the first drive motor and a second transmission unit connected to the second drive motor, which is installed below the box body and is internally connected to the first drive motor. Further, two low-speed gears and one high-speed gear are provided, and the low-speed gear is assembled with the first transmission unit to provide a low-speed shaft, while the high-speed gear is the second transmission unit. Is a gearbox that is mutually assembled and equipped with a high-speed shaft,
The agitation tank is formed and two low speed agitation assemblies and one high speed agitation assembly are provided, the low speed agitation assembly is connected to the low speed shaft, the high speed agitation assembly is connected to the high speed shaft, and the two low speed agitation assemblies are provided. The agitation assembly comprises a stirring barrel that occupies 58% to 63% of the agitation tank area and the high speed agitation assembly occupies 37% to 42% of the agitation tank area. .. The triaxial planetary mixer according to claim 1, wherein the first drive motor has a first transmission assembly connected to the first transmission unit. The triaxial planetary mixer according to claim 1, wherein the second drive motor has a second transmission assembly connected to the second transmission unit. The triaxial planetary mixer according to claim 1, wherein the expansion tank has a communication passage that communicates with the inside of the gearbox. The triaxial planetary mixer according to claim 1, wherein a counterweight is further provided in the gearbox. The triaxial planetary mixer according to claim 1, wherein the first drive motor has a slow speed assembly. The triaxial planetary mixer according to claim 1, wherein the high-speed stirring assembly is a stirable assembly such as a dispersion blade, a butterfly blade, a paddle blade, a disc blade, or a rod blade. The triaxial planetary mixer according to claim 1, wherein the low speed stirring assembly is a straight frame blade or a spiral blade. The slow stirring assembly has an upper side and a lower side.
The low-speed agitation assembly is characterized in that it is extended and connected to both ends of the upper side portion and the lower side portion at side portions, respectively, and the low-speed agitation assembly is connected to the low-speed shaft at the upper side portion. The triaxial planetary mixer according to claim 1. The cross-sectional shape of the side portion is configured to be a mirror image symmetrical hexagon having a maximum internal angle of 120 degrees or less and a minimum internal angle of 70 degrees to 78 degrees.
The length of the upper side is greater than the distance between the low speed shafts of the adjacent low speed stirring assemblies.
Each of the low speed stirring assemblies revolves and at the same time rotates around each of the low speed shafts.
The upper side and the lower side are arranged so as to be alternately X-shaped in projection.
The side portion is configured to have a mirror image symmetric hexagonal cross-sectional shape with a maximum internal angle of 120 degrees or less and a minimum internal angle of 70 to 78 degrees.
Claims characterized in that the maximum width (L) in the horizontal direction, the maximum width (W) in the vertical direction, and the length (N) of the minimum side of the mirror image symmetric hexagon satisfy the following equations (1) and (2). Item 9. The triaxial planetary mixer according to Item 9.
6: 5 ≤ L: W ≤ 7: 5 (1)
15: 5 ≦ L: N ≦ 40: 5 (2)

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