KR-102963853-B1 - A Planetary Mixer With Anti-stop Structure

Abstract

The present invention relates to a planetary stirrer having an anti-crack structure, and discloses a planetary stirrer having an anti-crack structure that allows stable operation without the phenomenon of blades being cracked by aggregated substances to be stirred, even when equipped with three or more blades, by forming a flow path on the lower surface of the blade through which a substance to be stirred can flow.

Inventors

• 이제열
• 김한성

Assignees

• 에스케이온 주식회사
• 주식회사 윤성에프앤씨

Dates

Publication Date

20260513

Application Date

20231204

Claims (5)

1. In a multi-axis planetary stirrer having a stirring section provided inside a vessel and including blades, wherein each of the blades rotates around a rotation axis and simultaneously revolves around an orbit axis, The lower surface of the blade is formed with a gap of 10 mm or less from the bottom surface of the vessel, and has a shape that extends for a certain length in a direction perpendicular to the axis of rotation. A planetary stirrer having an anti-jamming structure, wherein an inlet for introducing a substance to be stirred, an outlet for discharging the substance introduced through the inlet, and a connecting slot connecting the inlet and the outlet are formed by being recessed on the lower surface of the blade to form a flow path.
2. In paragraph 1, A planetary stirrer having an anti-jamming structure, wherein the inlet through which the substance to be stirred is introduced is located outside the outlet through which the substance to be stirred is discharged based on the rotational radius of the blade, so that the substance to be stirred introduced from the outside of the blade based on the rotational radius of the blade is discharged into the inside of the blade.
3. In paragraph 2, A planetary stirrer having an anti-cracking structure in which a plurality of the above-mentioned inlet and outlet are formed.
4. In paragraph 3, A planetary agitator having an anti-pinch structure, wherein the above-mentioned connecting slot is formed so that the plurality of inlets and outlets are in communication with each other.
5. In paragraph 3, A planetary agitator having an anti-squeezing structure, wherein the above-mentioned connecting slots are formed such that a pair of inlets and outlets are separated from another pair of inlets and outlets, thereby separating the flow paths from each other.

Description

Planetary Mixer with Anti-stop Structure The present invention relates to a planetary stirrer having an anti-crack structure, and more specifically, to a planetary stirrer having an anti-crack structure that can prevent malfunction of the planetary stirrer caused by aggregated aggregated aggregated material flowing into the lower part of the blade. Generally, a stirrer is a device that stirs multiple substances using mechanical force. Among them, the planetary stirrer comprises a stirring unit that performs actual stirring work on the material to be stirred, and a driving unit for driving the stirring unit. In detail, the drive unit (10) comprises a sun gear (11) as shown in FIG. 1, a ring gear (15) arranged coaxially with the sun gear (11), a plurality of planetary gears (13) arranged radially around the sun gear (11) and arranged to mesh with the sun gear (11) and the ring gear (15), and a drive motor that rotates the sun gear (11) around the orbital axis (101) which is the center of the sun gear (11). As the sun gear (11) rotates while the ring gear (15) is fixed, the planetary gears (13) rotate around their respective center rotational axis (103) and orbit around the sun gear (11). And the stirring unit is composed of blades coupled to the lower side of each planetary gear as shown in FIG. 2, and a plurality of blades arranged radially around the orbital axis inside the vessel rotate around their respective rotational axes while simultaneously orbiting around the orbital axis to stir the material to be stirred. Meanwhile, the aforementioned planetary stirrer is widely used in various fields such as chemistry, medicine, ceramics, food, feed, steel, non-ferrous metals, and electronics, but in the electronics field, it is used to manufacture electrode layers for lithium-ion secondary batteries. Conventional planetary stirrers for manufacturing battery layers typically have two blades, and separate wings for dispersion have been provided on the blades. However, while having three or more blades improves stirring efficiency, the tips of each blade converge below the rotation axis to form a closed section. Consequently, high-viscosity target materials contained within this closed section are compressed and aggregated. The aggregated materials then enter the space of approximately 10 mm formed between the blade and the vessel and get stuck, acting like a brake and causing a problem that hinders the rotation and rotational movement of the blade. As a prior patent for solving the aforementioned problem, Japanese Published Patent Application No. 2006-192358, "Oil-mixer and processing method using the same," has been disclosed. In detail, the prior art patent above solves the aggregation phenomenon of the target substance by sufficiently spacing the blades formed in the center of the orbital axis to 15 to 40 mm, as shown in FIG. 3, so that a closed section is not formed in the center of the orbital axis. However, since planetary stirrers perform the function of mixing the material to be stirred in the narrow gap between the blades, if the gap between each blade is wide as in the prior art patent above, the stirring efficiency decreases, so there is a problem that the meaning of installing multiple blades to increase stirring efficiency is lost. Therefore, there is an urgent need to develop a multi-axis planetary stirrer equipped with three or more multi-axis blades that can increase stirring efficiency by preventing the aggregation of the material to be stirred in the center of the container without widening the distance between the blades. Figure 1 is a plan view illustrating the drive unit of a planetary stirrer. FIG. 2 is a bottom perspective view illustrating the stirring section of a conventional planetary stirrer. Figure 3 is a bottom view showing the arrangement structure of blades included in a conventional planetary mixer. FIG. 4 is a bottom perspective view illustrating a blade according to a preferred embodiment of the present invention. FIG. 5 is a bottom view showing the arrangement structure of blades included in a planetary mixer having an anti-jamming wing structure according to a preferred embodiment of the present invention. FIG. 6 is a bottom view showing the flow path shape of a planetary mixer having an anti-pinch wing structure according to a preferred embodiment of the present invention. FIG. 7 is a bottom view showing the formation range of the inlet and outlet of a planetary mixer having an anti-jamming wing structure according to a preferred embodiment of the present invention. FIG. 8 is a bottom view illustrating a case where the flow paths formed in a planetary mixer having a jamming prevention wing structure according to preferred embodiment 2 of the present invention are separated from each other. FIG. 9 is a bottom view illustrating the flow path shape of a planetary mixer having an anti-squeezing wing structure according to preferred embodiment 3 of the present invention. Hereinafte