Description

APPARATUS FOR SEPARATING AND COLLECTING MILLED

POWDER FROM MILL

Technical Field

[1] The present invention relates to an improvement of a mill for shattering grain such as rice, barley, bean, wheat, and the like, and medicines such as Chinese medicine, charcoal, and the like, and more particularly, to an apparatus for continuously separating and collecting powder shattered by a mill such that the powder shattered by the mill can be easily separated and collected by this process, productivity of shattering can be improved, and sanitary shattering can be performed.

[2]

Background Art

[3] Generally, grain such as rice, barley, bean, wheat, and the like, and medicines such as Chinese medicine, charcoal, and the like are pulverized in accordance with desired uses, and a mill is widely used as a device to pulverize the above-material.

[4] Powder shattered by the mill is gathered into a sack-shaped bag tied to a side of the mill by an elastic cord. When the sack-shaped bag is filled with the shattered powder, the mill is stopped and the elastic cord tied to the end of the bag is released such that powder filled in the bag is separated and collected. When the separation and collection of the powder is finished, the end of the bag is tied with the elastic cord to seal the bag and the mill is operated again to perform the shattering.

[5] As described above, it is complicated to stop the mill and to release and tie the elastic cord from and to the end of the sack-shaped bag in order to collect the powder shattered by the mill. Moreover, since the shattered material would be polluted by contaminated hands of a worker during the tying and releasing of the elastic cord, it is unsanitary. Since the shattering is not continuously performed, productivity is deteriorated.

[6]

Disclosure of Invention

Technical Problem

[7] Therefore, the present invention has been made in view of the above problems, and it is an aspect of the present invention to provide an apparatus for easily collecting powder shattered by a mill and for enabling a sanitary and continuous shattering to improve productivity.

[8]

Technical Solution

[9] In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of an apparatus for separating and collecting milled powder from a mill and provided in the lower side of the mill, comprising: a filter connected to a base plate of the mill; a rotation body and a rotation plate installed in the lower side of the filter to be rotated by a geared motor such that a pusher is provided to a side of the rotation body and cut-off holes are formed in the rotation plate; an upper plate having a drop hole and provided between the rotation plate and the rotation body; a lower plate having a discharging hole and provided in the lower side of the rotation plate. Brief Description of the Drawings

[10] FIG. 1 is a schematic view illustrating a mill according to an embodiment of the present invention;

[11] FIG. 2 is a view illustrating a main part of the mill according to the embodiment of the present invention;

[12] FIG. 3 is a schematic view illustrating a powder separating and collecting apparatus employed in the mill according to an embodiment of the present invention;

[13] FIG. 4 is a view illustrating the connection of an upper end of a filter, employed in the powder separating and collecting apparatus according to the embodiment of the present invention;

[14] FIG. 5 is a schematic view illustrating a rotation body employed in the powder separating and collecting apparatus according to the embodiment of the present invention;

[15] FIG. 6 is a view illustrating the connection of a lower end of a filter, employed in the powder separating and collecting apparatus according to the embodiment of the present invention;

[16] FIG. 7 is an exploded perspective view illustrating a main part of the powder separating and collecting apparatus according to the embodiment of the present invention; and

[17] FIG. 8 is a sectional view illustrating a powder separating and collecting apparatus according to another embodiment of the present invention.

[18] <Description of Reference Numerals for Main Components of the Drawings>

[19] 100: mill 110: frame

[20] 111: base plate 112: cavity

[21] 200: powder collecting apparatus 210: filter

[22] 220: fixing plate 221 : cavity

[23] 222: elastically supporting pieces 223: fastening nuts

[24] 224: sealing packing 225: supporting ring

[25] 230: lower plate 231 : through-hole

[26] 232: discharging hole 233: coupling hole

[27] 234: discharging chute 235: fixing piece

[28] 236: fastening bolts 240, 240': rotation plates

[29] 241, 241': cut-off holes 242, 242': rectangular holes

[30] 243, 243': gap maintaining rings 244: coupling ring

[31 ] 250: upper plate 251 : drop hole

[32] 252: circular hole 253: coupling hole

[33] 254: screw fastening hole 255: coupling ring

[34] 256: elastically supporting pieces 260: rotation body

[35] 261: needle-shaped protrusion 262: circular part

[36] 263: pusher 264: rectangular hole

[37] 266: shaft rod 267: rectangular rod

Best Mode for Carrying Out the Invention

[38] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[39] A base plate 111 is installed on a frame 110, a conventional mill 100 is installed on the base plate 111, and a powder collecting apparatus 200 according to an embodiment of the present invention is installed in the lower side of the mill 100 such that the shattering is continuously performed by the mill 100 and the shattered powder is continuously collected.

[40] The powder collecting apparatus 200 according to the embodiment of the present invention will be described in detail.

[41] A funnel-shaped filter 210 has a wide upper side and a narrow lower side and is installed in the lower side of the conventional mill 100 mounted on the base plate 111.

[42] The filter 210 is made of fabric such as a cotton fabric, a nylon fabric, and the like and a non-fabric to filter the shattered powder while air passes through the filter 210.

[43] In order to install the filter 210 to the lower side of the mill 100, as illustrated in

FIG. 3, a fixing plate 220 having a cavity 221 is positioned in the lower side of the base plate 111 having a cavity 112.

[44] A plurality of elastically supporting pieces 222 are installed in the low rim of the fixing plate 220 at a regular interval and fastening bolts 223 are inserted into the elastically supporting pieces 222 from the lower sides of the elastically supporting pieces 222 to penetrate the fixing plate 220 and the base plate 111. The fastening bolts 223 are secured and fixed by fastening nuts 226.

[45] A sealing packing 224 is installed between the fixing plate 220 and the elastically supporting pieces 222 and a metal supporting ring 225 is positioned on the sealing

packing 224. Then the fastening bolts 223 inserted into the elastically supporting pieces 222 are fastened so that the elastically supporting pieces 222 press the metal supporting ring 225.

[46] Thus, as illustrated in FIG. 4, when the upper outer circumference of the filter 210 is surrounded by the supporting ring 225 and the supporting ring 225 is positioned under the sealing packing 224, the filter 210 is positioned between the supporting ring 225 and the sealing packing 224. In this state, when the fastening bolts 223 are fastened, the elastically supporting pieces 222 press the supporting ring 225 so that the filter 210 is securely fixed between the sealing packing 224 and the supporting ring 225.

[47] A device is provided in the lower side of the filter 210 such that the shattered powder can drop down without influence of wind.

[48] In more detail, as illustrated in FIGS. 5 to 7, a shaft rod 260 of a geared motor M is inserted into a through-hole 231 formed in the center of a lower plate 230 such that the lower plate 230 is mounted around the shaft rod 260 of the geared motor M. In this case, the upper side of the shaft rod 260 of the geared motor M is made of a rectangular rod 261, a discharging hole 232 is formed in a side of the lower plate 230, and coupling holes 233 are formed in the rim of the lower plate 230.

[49] Since a rotation plate 240 having a plurality of cut-off holes 241 is installed above the lower plate 230 and the rectangular rod 261 formed in the upper side of the shaft rod 260 of the geared motor M is inserted into a rectangular hole 242 formed in the center of the rotation plate 240, the rotation plate 240 rotates together with the shaft rod 260 when the shaft rod 260 rotates.

[50] In this case, a diameter of the rotation plate 240 is smaller than a diameter of the lower plate 230 such that a gap maintaining ring 243 is formed outside the rotation plate 240. The gap maintaining ring 243 includes a coupling hole 244 to be aligned with the coupling hole 233 of the lower plate 230.

[51] An upper plate 250 having a circular hole 252 and a drop hole 251 is positioned on the rotation plate 240 and the gap maintaining ring 243. A coupling hole 253 is formed in the rim of the upper plate 250 such that the coupling hole 253 is aligned with the coupling holes 233 and 244 of the lower plate 230 and the gap maintaining ring 243.

[52] A rotation body 260 is installed in the upper side of the upper plate 250 such that a circular part 262 formed in the lower side of the rotation body 260 is inserted into the circular hole 252 of the upper plate 250. A needle-shaped protrusion 261 is formed in the upper side of the circular part 262 and a pusher 263 is formed in a side of the rotation body 260.

[53] In this case, since a rectangular hole 264 is formed in the lower center of the rotation body 260 into which the rectangular rod 267 formed in the upper end of the

shaft rod 266 of the geared motor M is inserted, the rotation body 260 rotates together with the shaft rod 266 when the shaft rod 266 of the geared motor M rotates.

[54] Moreover, a coupling ring 255 having a screw fastening hole 254 and elastically supporting pieces 256 are placed on the rim of the upper plate 250 such that the screw fastening hole 254 is aligned with the coupling hole 253 of the upper plate 250, a sealing packing 257 is placed inside the coupling ring 255, and a metal supporting ring 258 is placed on the sealing packing 257. Thus, the metal supporting ring 258 placed on the sealing packing 257 is positioned in the lower sides of the elastically supporting pieces 256 of the coupling ring 255.

[55] As described above, when the lower plate 230, the rotation plate 240, the upper plate 250, and the rotation body 260 are coupled with the shaft rod 266 and the rectangular rod 267 of the geared motor M and the gap maintaining ring 243 and the coupling ring 255 are respectively placed between the lower plate 230 and the upper plate 250 and in the upper side of the upper plate 250, a fastening bolt 236 is inserted into the coupling hole 233 formed in the lower side of the lower plate 230 to penetrate the respective coupling holes 244 and 253 and is coupled with the screw fastening hole 254 of the coupling ring 255 by means of threads, so that they are integrally fastened and the metal supporting tin 258 placed on the sealing packing 257 is elastically supported by the elastically supporting piece 250 of the coupling ring 255.

[56] In this case, as illustrated in FIG. 6, the lower end of the filter 210 is positioned at the outer circumference of the metal supporting ting 258 and is fixed between the sealing packing 257 and the metal supporting ring 258.

[57] The geared motor M employed in the present invention is rotated at relatively low revolutions per minute (RPM) of 5 to 20 such that wear of various components caused by the rotational friction can be minimized.

[58] Moreover, the rotation plate 240, disposed between the upper plate 250 and the lower plate 230, contacts the lower plate 230 by the weight of the rotation plate 240 and the rectangular rod 261 of the geared motor M when the rectangular rod 261 is inserted into the rectangular hole 242 and is spaced apart from the upper plate 250 by about 0.1 mm. The space between the upper plate 250 and the lower plate 230 is adjusted by the gap maintaining ring 243 disposed between the upper plate 250 and the lower plate 230.

[59] The drop hole 251 formed in the upper plate 250 and the discharging hole 232 formed in the lower plate 230 are formed in the opposite positions so that a wind generated during the shattering by the mill 100 does not influence the discharging hole 232 of the lower plate 230.

[60] When implementing the present invention, as illustrated in FIG. 8, an auxiliary plate

270 and an auxiliary rotation plate 240' may be installed between the lower plate 230

and the upper plate 250.

[61] In other words, the auxiliary plate 270 formed with a drop hole 271 and the auxiliary rotation plate 240' formed with a plurality of cut-off holes 241' and a rectangular hole 242' are disposed between the rotation plate 240 and the lower plate 230 and an auxiliary gap maintaining ring 243' is disposed out of the auxiliary rotation plate 240' to maintain a gap.

[62] In this case, the drop hole 251 formed in the upper plate 250 and the drop hole 172 formed in the auxiliary plate 270 are formed in the opposite positions, and the drop hole 271 of the auxiliary plate 270 and the discharging hole 232 of the lower plate 230 are also formed in the opposite positions.

[63] When the present invention is implemented, the rotation plate 240 are not used as dual layers as illustrated in FIG. 8, but also may be triple layers or quadruple layers.

[64] A reference numeral 300 is assigned to a geared motor fixing plate, a reference numeral 310 is assigned to a collecting container, and a reference numeral 330 is assigned to a fastening bolt.

[65] As described above, in the present invention, grain such as rice, barley, bean, wheat, and the like, and medical material such as Chinese medicine, charcoal, and the like are milled into powder like in the conventional mill.

[66] However, in the mill 100 of the present invention, the powder of the grain and medicine milled by the mill 100 is continuously dropped down and automatically collected through the powder collecting apparatus 200 installed in the lower side of the mill 100, so that the continuous milling is enabled, it is convenient to work without exchanging a sack for collecting the powder, and productivity can be increased.

[67] In other words, when the mill is operated, the powder milled by the mill 100 is transferred down the mill 100 due to the wind and the wind passes through the filter 210 and only the milled powder drops down and is accumulated on the upper plate 250.

[68] In this case, powder, of the powder dropping within the filter 210, which drops down on the needle-shaped protrusion 261 slides along slope of the needle-shaped protrusion 261 and is accumulated on the upper plate 250.

[69] The powder accumulated on the upper plate 250 drops down into the drop hole 251 by the pusher 263 provided at the side of the rotation body 260.

[70] In other words, when the milling of the mill 100 is started, the geared motor M is rotated together with the mill 100 to rotate the shaft rod 266. Due to the rotation of the shaft rod 266, the rotation plate 240 and the rotation body 260 into which the rectangular rod 261 is inserted rotate, the pusher 263 provided at the side of the rotation body 260 rotates on the upper surface of the upper plate 250 due to the rotation of the rotation body 260 and pushes the accumulated powder toward the drop hole 251.

[71] As described above, the powder dropped into the drop hole 251 enters the cut-off holes 241 of the rotating rotation plate 240 and the powder introduced into the cut-off holes 241 moves along the rotation plate 240.

[72] When the powder which is introduced into the cut-off holes 241 and moved, reaches the discharging hole 232 of the lower plate 230, the powder drops down into the discharging hole 232 due to the weight of the powder and the discharged powder drops down into the collecting container 310 disposed under a discharging chute 234 through the discharge chute 234 and is accumulated.

[73] As described above, the powder milled by the mill 100 and accumulated on the upper plate 250 is pushed by the pusher 263 of the rotation body 260 to be dropped down into the drop hole 251, and the dropped powder drops into the discharging hole 232 of the lower plate 230 through the cut-off holes 241 of the rotation body 240. These operations are repeated so that the continuous powder collecting and milling operation can be performed.

[74] When implementing the present invention, as illustrated in FIG. 8, the auxiliary plate 270 formed with the drop hole 271 and the auxiliary rotation plate 240 formed with the plurality of cut-off holes 241' are further disposed between the rotation body 240 and the lower plate 230 so that the powder milled by the mill 100 can be continuously separated and collected.

[75] In other words, the powder dropped on the upper plate 250 drops down into the drop hole 251 of the upper plate 250 by the pusher 263 of the rotation body 266 to enter the cut-off holes 241 of the rotation plate 240.

[76] The powder introduced into the cut-off holes 241 of the rotation plate 240 drops down into the drop hole 271 of the auxiliary plate 270 again and enters the cut-off holes 241' of the auxiliary rotation plate 240'. The powder introduced into the cut-off holes 241' of the auxiliary rotation plate 240' rotates along the auxiliary rotation plate 240 and drops down into the discharging hole 232 to be accumulated in the collecting container 310.

[77] The reason that the collection of the powder is enabled regardless of wind although the powder milled by the powder collecting apparatus 200 is dropped and collected through the discharging chute 234 provided in the lower side of the lower plate 230 is because the drop hole 251 formed in the upper plate 250 is positioned at the position opposite to the position of the discharging hole 232 formed in the lower plate 230 and the rotation plate 240 is positioned therebetween so that the wind generated within the filter 210 does not influence the powder dropping through the discharging hole 232.

[78] In this case, the rectangular rod 267 of the shaft rod 266 is inserted into the rotation plate 240 and the rotation plate 240 is placed on the lower plate 230 due to its own weight. Moreover, the gap between the upper plate 250 and the rotation plate 240 is

about 0.1 mm so that the wind generated within the filter 210 scarcely influences the discharging hole 232.

[79] Furthermore, in order to connect the filter 210 to the base plate 111 of the mill 100, the metal supporting ring 225 is positioned on the sealing packing 224 such that the elastically supporting pieces 222, which are installed to the fixed plate 220 by the fastening bolts 223 and the fastening nuts 226, elastically support the metal supporting ring 225. In this case, the upper end of the filter 210 is inserted between the metal supporting ring 225 and the sealing packing 224 so that the upper end of the filter 210 can be securely connected to the base plate 111 and the wind can be prevented from leaking through the connected portion.

[80] In order to connect the lower end of the filter 210, as illustrated in FIG. 6, the metal supporting ring 258 is placed on the sealing packing 257 such that the metal supporting ring 258 is elastically supported by the elastically supporting pieces 256 of the coupling ring 255. In this case, the lower end of the filter 210 is inserted between the metal supporting ring 258 and the sealing packing 257 so that the lower end of the filter 210 can be securely connected and the wind can be prevented from leaking through the connected portion.

[81] The geared motor M is coupled with and fixed to the geared motor fixing plate 300 positioned at the central area of the frame 110 and the fastening bolts 330 are fastened to fixing pieces 320 formed at the lateral sides of the lower plate 230 such that the lower plate 230 is fixed to the geared motor fixing plate 300 and can stably support the powder collecting apparatus 200.

[82] Moreover, since the motor, which rotates the rotation plate 240 and the rotation body 260, rotates at low speed of about 5 RPM to 20 RPM, the friction coefficients of the rotation plate 240 and the rotation body 260 are reduced to minimize wearing.

[83]

Industrial Applicability

[84] As described above, according to the present invention, since grain such as rice, barley, bean, wheat, and the like, and medicines such as Chinese medicine, charcoal, and the like are shattered into powder by a mill, and continuously separated and collected by the powder collecting apparatus such that the shattering can be performed without stopping, the conveniences and productivity of shattering can be improved. Moreover, since the tying and untying of the elastic cord around the bag are unnecessary when the powder is separated, unlike in the related art, sanitary shattering can be performed.