Grinder using induced electric field

Abstract

The present invention relates to a grinder using induced electric fields. The grinder comprises: a grinding unit on which a plurality of protrusions for cutting are disposed on an outer circumferential surface thereof; a power unit disposed in the grinding unit to generate electric fields and attach the conductive materials to the grinding unit; and a chamber disposed outside the grinding unit and comprising beads that disperse and grind the conductive materials attached to the grinding unit, wherein the conductive materials have directionality by the electric fields of the power unit.

Claims

1. A method of dispersing and grinding conductive materials using induced electric fields, the conductive materials comprising carbon nano fibers (CNFs) or carbon nano tubes (CNTs), the method comprising: rotating a grinding unit of a grinder, the grinding unit having a plurality of protrusions disposed on an outer circumferential surface thereof, the protrusions having a cylindrical spike mill structure in which the grinding unit has a cylindrical shape and the protrusions extend from the outer circumferential surface thereof; generating the induced electric fields from a power unit disposed in the grinding unit, the induced electric fields attaching the conductive materials to the grinding unit, the conductive materials being given directionality by the induced electric fields, the conductive materials being aligned by the induced electric fields in a direction perpendicular to the grinding unit; and dispersing and grinding the conductive materials attached to the grinding unit using beads contained within a chamber disposed outside the grinding unit, the conductive materials being ground by being disposed between the protrusions and the beads when the grinding unit rotates.

2. The method of claim 1, wherein the beads contained within the chamber comprise zirconia beads.

3. The grinder method of claim 1, wherein the grinding unit is electrically grounded.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a view of a grinder using induced electric fields according to the present invention,

(2) FIG. 2 is a perspective view of the grinder using the induced electric fields according to the present invention, and

(3) FIGS. 3 and 4 are cross-sectional views illustrating an aligned state of conductive materials in the grinder using the induced electric fields according to the present invention.

MODE FOR CARRYING OUT THE INVENTION

(4) Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(5) As illustrated in FIGS. 1 to 4, a grinder using induced electric fields comprises a grinding unit 100 having protrusions 101, a power unit 110 generating electric fields, a chamber 120 comprising beads 121, and conductive materials having directionality by the electric fields.

(6) As illustrated in FIGS. 2 and 3, the grinding unit 100 may be a grinding device on which a plurality of protrusions 101 for cutting are disposed on an outer circumferential surface thereof.

(7) Here, the grinding unit 100 has a cylindrical spike mill structure and performs the grinding while rotating.

(8) As illustrated in FIGS. 1 and 2, the power unit 110 is disposed in the grinding unit 100 to generate the electric fields when power is applied thereto.

(9) The chamber 120 is disposed outside the grinding unit 100. The beads 121 are disposed in the chamber 120. Thus, when the grinding unit 100 rotates, the conductive materials 130 that will be described below may be physically ground by kinetic energy between the beads 121 and the protrusions 101.

(10) Also, the chamber 120 may have a grounding function so that the grinding unit 100 is grounded when the power is generated by the power unit 110.

(11) As illustrated in FIGS. 3 and 4, the conductive materials 130 may be disposed between the protrusions 101 of the grinding unit 100 and the beads 121 of the chamber 120 and have directionality by the electric fields of the power unit 110.

(12) Here, the conductive materials 130 may comprise carbon nano fibers (CNFs) or carbon nano tubes (CNTs).

(13) Also, the beads disposed on the chamber 120 may comprise zirconia beads, which are minerals having high refractive index, corrosion resistance, and melting point so that the beads 121 are not worn due to their high strength when the conductive materials 130 are ground.

(14) As described above, the conductive materials 130 are aligned in a direction perpendicular to the grinding unit 100 when induced electric fields are generated by the electric fields of the power unit 110. Thus, when the grinding unit 100 rotates, the conductive materials 130 are ground through the protrusions 101 in the state in which the conductive materials 130 are vertically disposed between the protrusions 101 of the grinding unit 100 and the beads 121 of the chamber 120.

(15) Here, a distance between each of the protrusions 101 of the grinding unit 100 and each of the beads 121 of the chamber 120 may be set to adjust a ground length of each of the conductive materials 130.

(16) That is, the grinder according to the present invention comprises the grinding unit 100 on which the protrusions 101 for the cutting are disposed on the outer circumferential surface thereof, the power unit 110 disposed in the grinding unit 100 to generate the electric fields, the chamber 120 disposed outside the grinding unit 100 and comprising the beads 121 therein, and the conductive materials 130 disposed between the protrusions 101 of the grinding unit 100 and the beads 121 of the chamber 120 and having the directionality by the electric fields of the power unit 110. Therefore, the CNFs and the CNTs may be fixed in the direction perpendicular to the grinder through the induced electric fields to improve the grinding efficiency of the conductive materials 130 and thus to reduce the number of grinding processes, thereby reducing the process costs and time.

(17) Accordingly, the scope of the present invention is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein. Various modifications made within the meaning of an equivalent of the claims of the invention and within the claims are to be regarded to be in the scope of the present invention.