WO2014148779A1 - Rice milling machine - Google Patents
Rice milling machine Download PDFInfo
- Publication number
- WO2014148779A1 WO2014148779A1 PCT/KR2014/002208 KR2014002208W WO2014148779A1 WO 2014148779 A1 WO2014148779 A1 WO 2014148779A1 KR 2014002208 W KR2014002208 W KR 2014002208W WO 2014148779 A1 WO2014148779 A1 WO 2014148779A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rice
- ring
- cutting
- circumferential surface
- support shaft
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
- B02B7/02—Feeding or discharging devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/06—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of screws or worms
Definitions
- the present invention relates to a rice scouring machine capable of supplying sufficient air to smoothly discharge rice bran and cool the rice grains. More specifically, the present invention relates to a rice polisher that can be processed into white rice, which is cookable without washing brown rice, that is, clean rice.
- rice husks removed from rice paddies are called brown rice (100 degrees, white degree ⁇ 20), and rice bran layers, which refer to the outermost layer of brown rice, such as rinds of skin, seed, endosperm, and whistle, are called white rice.
- White rice is divided into 5 minutes, 7 minutes, and 10 minutes depending on the degree of milling.
- the process of separating rice bran (rice bran) from brown rice is called the milling process, and the device used in the milling process is called rice milling.
- the present invention relates to a rice mill of the cutting method.
- Republic of Korea Patent No. 664,675 discloses a rice mill of the cutting method having a hollow shaft, a cutter ring, a spacer and a baffle ring.
- a cutter ring and a spacer are alternately inserted into a hollow shaft in which a vent hole is formed.
- On the outer circumferential surface of the cutter ring a plurality of arc-shaped grooves are formed at equal intervals and the brown rice is cut while being fed into the arc-shaped grooves.
- an obtuse portion for cutting brown rice is formed on the outer circumferential surface of the spacer, and an open cutout portion is formed to discharge air supplied to the hollow shaft.
- the bran-cut rice mill disclosed in the above patent has a problem that the white rice is not completely discharged in the whitening chamber and the remaining amount remains even after the milling process is completed. This problem is caused by a gap between the screen and the hollow shaft installed horizontally as the center of the screen is struck when used for a long time. In addition, since a large horsepower driving motor is required to horizontally feed rice, there is a problem in that the manufacturing cost and the maintenance cost are increased.
- the present invention is devised to improve the problems of the conventional cutting type rice polishing machine as described above.
- the present invention is because the drive shaft equipped with the brown rice processing rotating body is installed inclined in the direction of the white rice outlet in the hopper for supplying the brown rice, the milled rice is naturally flowing in the discharge direction to provide a rice polisher with no residue remaining inside the white room. The purpose.
- an object of the present invention is to provide a rice mill configured to smoothly convey the grains of rice at the time of milling.
- a milling machine of a cutting method provided with a micromachined rotating body.
- the rice cleaning machine includes a main body having a hopper to which rice grains are supplied at one end and an outlet for discharging rice grains at the other end thereof, a drive shaft rotatably installed on the main body so as to be inclined in the discharge port direction from the hopper, and mounted on the drive shaft.
- the brown rice processing rotating body which presses and transports the rice bran of rice grain supplied through the hopper while being pressed and discharged in the direction of the outlet, the screen which is installed at the outside of the brown rice processing rotating body and separates only the removed rice bran, and transmits the rotational force to the drive shaft. It includes a drive motor.
- the micro-machined rotary body of an embodiment according to the present invention includes a screw mounted on a drive shaft, a support shaft having a hollow cylindrical shape so as to be installed adjacent to the screw, and having at least one key groove formed in the longitudinal direction on the inner and outer circumferential surfaces thereof, And a plurality of cutting rings fitted and coupled to the support shaft, and a plurality of gap rings fitted and coupled to the support shaft so as to be disposed between the plurality of cutting rings.
- the cutting ring according to the present invention has a ring shape having a constant thickness, and has a plurality of cutting passages formed to connect both sides of the ring such that rice bran is cut while rice grains are passed through the outer circumferential surface, and a keyway connection protrusion formed on the inner circumferential surface of the driving shaft. It is fitted in the key groove formed on the outer peripheral surface.
- the cutting passage has a channel shape extending to both sides of the ring, and the channel includes a bottom surface and a pair of sides extending from both sides of the bottom surface. The brown rice passing through the cutting passage contacts the edge of the channel and the rice bran is cut and polished. In particular, netting is achieved while simultaneously contacting the bottom and side surfaces near the edge of the channel.
- each spacing ring is ring-shaped with fixed thickness, is arrange
- the bottom surface of the cutting ring is a plane perpendicular to the plane passing through the center axis of the cutting ring, and both sides may be configured to meet the bottom surface at an angle of at least 90 °.
- the outer peripheral surface between each neighboring cutting passage may be formed in a plane perpendicular to the plane passing through the center axis of the cutting ring.
- the cutting ring supports the cutting ring so as to secure an air passage between the support shaft and the inner circumferential surface inserted and coupled inwardly, and is disposed at regular intervals in the circumferential direction from the inner circumferential surface and extends inwardly toward the center axis line. And a plurality of support portions and keyway connection protrusions formed on at least one end of the plurality of supports.
- the spacing ring supports the spacing ring so as to secure an air passage between the support shaft and the inner circumferential surface inserted and coupled inwardly, and is disposed at regular intervals in the circumferential direction from the inner circumferential surface, and extends inward toward the central axis.
- a plurality of cutting passages are formed in a ring shape of a certain thickness so as to be installed at the outermost end of at least one of the plurality of cutting rings, and are formed to connect both sides of the ring so that the rice bran is cut while passing through the outer circumferential surface And an auxiliary cutting ring in which an air passage is formed to communicate with the air passage of the cutting ring.
- air for cooling the rice grains may be supplied through a space formed by the inner circumferential surface of the cutting ring and the inner circumferential surface of the spacing ring through an air supply hole formed in the main body end, which is the outer circumferential surface of the drive shaft, in the refining process.
- the spacer ring supports the ring so as to secure an air passage between the support shaft and the inner circumferential surface inserted and coupled inwardly, and is disposed at regular intervals in the circumferential direction on the inner circumferential surface, and extends inwardly toward the center axis.
- the keyway connecting protrusion of the spacing ring may be formed at an end of the at least one spacing ring support.
- an air ring is inserted in order to secure a clearance between the gap ring and the cutting ring to allow air to flow.
- the air ring has a ring shape having a constant thickness and is disposed between the cutting ring and the spacing ring, the outer diameter of which is smaller than the inner circumferential surface of the spacing ring, and a keyway connecting protrusion formed on the inner circumferential surface can be fitted into the key groove formed on the outer circumferential surface of the support shaft.
- the drive shaft equipped with the micro-processing rotary body according to the present invention may be installed to be inclined toward the outlet in the hopper in order to smoothly transfer the rice grain supplied through the hopper in the outlet direction. It is preferable that the inclination angle of the drive shaft is in the range of 5 ° to 30 °.
- the cutting ring assembly according to the present invention may further comprise an induction blade to facilitate the feeding of rice grains.
- the guide blade may be inserted and fixed to the outer circumferential surface of the plurality of cutting rings to be inclined spirally at an angle along the longitudinal direction of the drive shaft. It is preferable that the inclination angle is in the range of 0 ° to 45 ° when the guide blade is fixed.
- the brown rice processing rotating body may form at least one air supply hole along the length direction of the support shaft to cool the rice grains by using the air supplied through the hollow support shaft in the refining process.
- the drive shaft is a hollow cylindrical shape
- the drive shaft is provided with at least one air supply hole along the longitudinal direction so as to communicate with the air supply hole of the support shaft.
- the gap ring may include a cutout in which the inner circumferential surface and the outer circumferential surface are opened such that air supplied through the air supply hole of the support shaft is discharged through the gap ring.
- the rice mill according to the present invention because the brown rice processing rotating body is installed on the drive shaft inclined in the direction of the outlet from the hopper, the white rice flows naturally in the outlet direction so that the remaining amount does not remain in the interior of the white room, the recovery rate is improved have. In addition, since white rice is pumped while flowing down toward the outlet, it is possible to use a driving motor having a small horsepower, thereby reducing the manufacturing cost and maintenance cost.
- the rice mill according to the present invention has the effect that the cutting ring is a channel-shaped cutting passage is formed can remove the rice bran layer without damaging the brown rice.
- the cutting passage between the cutting ring and the cutting ring to move the rice is formed in the channel shape can effectively cut the surface of the rice grain to be milled.
- the rice mill according to the present invention supplies a large amount of air evenly between the cutting ring and the spacing ring. Therefore, the rice grains are smoothly transferred and the rice brans are completely discharged so that the remaining rice bran does not stick to the surface of the rice grains and effectively cools the rice grains to prevent deterioration of the milled rice grains.
- the surface of the milled rice can produce clean, clean, and long-term storage.
- the rice cleaning machine according to the present invention is provided with an induction blade in the brown rice processing rotating body, it is possible to effectively feed the grain of rice at the time of milling, it is possible to operate the rice mill at high speed, it is possible to easily adjust the degree of milling.
- the rice grains are less damaged during the milling, so that the susceptibility of 92% or more can be achieved depending on the driving conditions during the milling.
- FIG. 1 is a perspective view of one embodiment of a rice mill according to the present invention.
- FIG. 2 is a partial cross-sectional view of the rice mill shown in FIG. 1.
- FIG. 3 is a perspective view of one embodiment of a screw installed in the microfabricated rotating body shown in FIG.
- FIG. 4 is a perspective view of one embodiment of a cutting ring assembly installed in the microfabricated rotating body shown in FIG. 2.
- FIG. 5 is an exploded perspective view of the cutting ring assembly shown in FIG. 4.
- FIG. 6 is a front view of one embodiment of the cutting ring shown in FIG.
- FIG. 7 is a front view of one embodiment of the spacing ring shown in FIG.
- FIG. 8 is a cross-sectional view taken along the line A-A of FIG. 2 and is an explanatory view showing a state in which the grain of rice is cut in the cutting ring assembly of the embodiment shown in FIG.
- FIG. 9 is a front view of one embodiment of an air ring that may be used in a cutting ring assembly in accordance with the present invention.
- FIG. 10 is a schematic cross-sectional view showing another embodiment of the rice cleaning machine according to the present invention.
- FIG. 11 is a perspective view of another embodiment of the cutting ring assembly shown in FIG. 10.
- FIG. 12 is an exploded perspective view of the cutting ring assembly shown in FIG. 11.
- FIG. 13 is a front view of another embodiment of the cutting ring shown in FIG. 12.
- FIG. 14 is a front view of another embodiment of the spacing ring shown in FIG. 12.
- FIG. 15 is a cross-sectional view taken along line B-B of FIG. 10 and is an explanatory view showing a state in which the grain of rice is cut in the cutting ring assembly of another embodiment shown in FIG.
- one side is the front side of the ring and the other side is the rear side of the ring when viewed in the conveying direction of the grain of rice, and the one side and the other side are connected
- the side is called the outer circumferential surface of the ring and the inner side is defined as the inner circumferential surface of the ring.
- FIG. 1 is a perspective view of one embodiment of a rice mill according to the present invention
- Figure 2 is a partial cross-sectional view of the rice mill shown in FIG.
- the rice polisher 100 includes a main body 110.
- the whitening chamber 111 is provided on the main body 110.
- the hopper 112 is provided at an upper end of the whitening chamber 111, and the brown rice supplied through the hopper 112 is transferred to the brown rice processing rotating body 160.
- the white rice discharge port 113 is installed at the other end lower part of the whitening chamber 111, and discharges the rice grain which was inverted by the brown rice processing rotating body 160 to the outside.
- the rice bran outlet 114 is installed at the bottom of the brown rice processing rotating body 160, and discharges rice bran, which is rice bran removed from the grains of rice, when the brown rice is inverted to white rice.
- the drive shaft 120 is rotatably installed in the center of the white room 111 so as to be inclined toward the white rice outlet 113 from the hopper 112.
- the driven pulley 121 is installed at one end of the drive shaft 120.
- the outer peripheral surface of the drive shaft 120 is provided with a brown rice processing rotating body 160 for pressing and conveying the rice bran of the rice grain supplied through the hopper 112 in the direction of the white rice outlet (113).
- both ends of the drive shaft 120 is of course supported by the first bearing 115 and the second bearing 116.
- the minute adjuster 117 is installed at the other end of the whitening thread 111, and the white rice inverted by the brown rice processing rotating body 160 pushes the plate of the minute adjuster and is discharged to the white rice outlet 113.
- Cutting ring assembly 180 of the embodiment according to the present invention in order to smoothly transfer the rice grain supplied through the hopper 112 in the direction of the white rice outlet 113, in the direction of the white rice outlet 113 from the hopper 112.
- the inclination angle a of the driving shaft 120 is preferably about 15 °, but is not limited thereto.
- the inclination angle of the drive shaft 120 can adjust the inclination angle within the range of 5 ° ⁇ 30 ° according to the length, degree of precision or yield.
- the drive motor 130 is mounted below the main body 110 and a drive pulley (not shown) is installed on the shaft of the drive motor 130.
- the belt 140 is connected to the driven pulley 121 of the drive shaft 120 and the drive pulley of the drive motor 130, respectively. Therefore, when the driving motor 120 operates, the belt 140 rotates while the driving pulley rotates, and the driven pulley 121 is rotated by the rotational force of the belt 140.
- the rotational force of the driven pulley 121 is transmitted to the drive shaft 120 and the micro-machined rotating body 160 rotates in the same direction as the rotational direction of the drive shaft 120.
- Screen 150 is installed at intervals on the outside of the brown rice processing rotating body 160, and discharges the rice bran removed during the milling to the outside.
- the microfabricated rotating body 160 includes a screw 170 and a cutting ring assembly 180.
- the micro-machined rotary body according to an embodiment of the present invention uses a cutting ring assembly, but is not limited thereto.
- a roller assembly, a polishing assembly, or the like may also be used.
- the brown rice supplied to the hopper 112 is pushed toward the cutting ring assembly 180 by the screw 170 which is the brown rice processing rotating body 160.
- the screw 170 has a shaft hole 171 through which a center thereof is penetrated to be mounted on the drive shaft 120, and has a blade 172 spirally formed on an outer circumferential surface thereof. Further, a plurality of through holes 173 are formed in the axial hole 171 in the circumferential direction. Then, the brown rice pushed by the screw 120 is pushed toward the white rice outlet 113 while passing through the adjacent cutting passage 12 of the cutting ring assembly 180 that rotates together with the drive shaft 120.
- the rice grains passing through the cutting passage 12 pass through the bottom surface 12a of the cutting passage 12 and the edges of the pair of side surfaces 12b extending on both sides of the bottom surface 12a. It is cut off and removed.
- the rice mill 100 includes an air supply hole 118 that supplies air to the outside of the main body 110 adjacent to the driven pulley 121.
- the air supplied to the air supply hole 118 passes through the through hole 173 formed in the screw 170, the micromachined rotating body 160, into an air passage formed in each ring installed in the cutting ring assembly 180. Supplied.
- the large amount of air supplied as described above discharges the rice bran which is cut rice bran to the outside of the screen 150 so that the rice bran does not stick to the rice grains and remains.
- the rice grains having a high temperature are cooled by friction between the cutting ring and the spacer ring installed in the cutting ring assembly 180.
- FIG. 4 is a perspective view of one embodiment of a cutting ring assembly installed in the microfabricated rotating body shown in FIG. 2, and FIG. 5 is an exploded perspective view of the cutting ring assembly shown in FIG.
- the cutting ring assembly 180 installed in the micromachined rotating body 160 of the present embodiment includes a plurality of cutting rings 10 and a plurality of spacing rings assembled by being alternately fitted to the support shaft 30. 20) and a plurality of guide blades 50 coupled to grooves formed so as to be inclined to outer peripheral surfaces of the auxiliary cutting ring 40 and the plurality of cutting rings 10 respectively provided at both ends.
- the support shaft 30 of one embodiment has a hollow shaft 31 formed to be mounted on the fixed shaft 120, and key grooves 32 and 33 are formed in the longitudinal direction on the outer circumferential surface and the inner circumferential surface, respectively. It is.
- the key groove formed on the outer circumferential surface of the support shaft 30 is called the outer key groove 32, and the key groove engaging projection 14 of the plurality of cutting rings 10 and the key groove of the spacer ring 20 are connected to the outer key groove 32.
- the protrusions 24 are fitted and engaged.
- Four outer key grooves 32 according to the present invention are formed at intervals such as 90 °, but are not limited thereto.
- the key groove formed on the inner circumferential surface of the support shaft 30 is called the inner key groove 33, the key for coupling so as to transmit the power of the drive shaft 120 inserted into the hollow 31 of the support shaft 30 is inserted.
- the air supply hole 34 may be formed in the support shaft 30. At least one air supply hole 34 is formed along the longitudinal direction of the support shaft 30 so as to communicate with the hollow shaft 31. Therefore, the outside air supplied to the hollow shaft 31 passes through the air supply hole 34 and is discharged radially outward of the cutting ring assembly 180.
- FIG. 6 shows an embodiment of a cutting ring according to the present invention.
- the cutting ring 10 has a ring shape in which a support shaft fitting hole 11 is formed at the center and has a constant thickness.
- the cutting passage 12 has a channel shape in which the front and rear surfaces are connected to each other.
- the channel includes a bottom face 12a and a pair of side faces 12b extending on both sides of the bottom face 12a.
- the plurality of cutting passages 12 are formed on the outer circumferential surface of the cutting ring 10 at equal intervals, but may not be equal intervals in other embodiments.
- the rice bran is cut in contact with the edge (edge) of the bottom surface 12a of the channel and the edge (edge) of the side surface 12b as it passes through the cutting passage 12.
- the cutting ring 10 of the present embodiment has an edge of the bottom surface 12a and the edges of both sides 12b when the grain of rice passes through the portion where the bottom surface 12a of the channel and the pair of side surfaces 12b meet.
- the cutting effect is excellent while simultaneously cutting in contact with (see FIG. 8).
- the channel-shaped cutting passage 12 is the bottom surface 12a is a plane perpendicular to the plane passing through the center axis of the cutting ring 10, both sides 12b are angles of 90 degrees or more with the bottom surface 12a It is configured to meet with. Therefore, the substantially rugby ball-shaped rice grains passing through the cutting passage 12 are not caught in the corners of the cutting passage 12 to increase the cutting effect.
- a ring between the cutting passage 12 and the cutting passage 12 so that the rice grain passing through the space between the cutting ring 10 and the screen 150 contacts the outer circumferential edge of the cutting ring 10 to effectively cut the rice bran. It is preferable that the outer circumferential surface of is formed in a plane perpendicular to the plane passing through the central axis of the cutting ring 10, like the bottom surface 12a.
- the support part 13 extends from the inner peripheral surface of the cutting ring 10 to the support shaft fitting hole 11, and is provided in plurality at regular intervals along the circumferential direction of the cutting ring 10. In this embodiment, four are extended inward toward the center axis of the cutting ring 10, but is not limited thereto.
- the key groove connecting projection 14 is formed at the end of each support 13, each key groove connecting projection 14 is fitted in the key groove formed in the corresponding support shaft (30).
- the keyway connecting protrusions 14 are all formed at the ends of each support 13, but are not limited thereto and may be formed at at least one end of each support 13.
- the air passage 15 is formed between the support shaft 30 and the inner circumferential surface, and air introduced into the air supply passage 118 formed in the main body 110 passes through this space.
- the spacing ring 20 has a ring shape having a constant thickness, and a support shaft fitting hole 21 penetrated at the center thereof is formed.
- the air passage channel 22 is a portion formed radially on one side of the ring so that the inner circumferential surface and the outer circumferential surface of the ring communicate with each other, and when the air passage channel 22 is assembled to the cutting ring assembly 180, air is supplied from the outside.
- a plurality of support portions 23 are disposed on the inner circumferential surface of the support shaft fitting hole 21 at regular intervals in the circumferential direction.
- the key groove connecting projection 24 is formed at the end of each support 23, it is fitted to the outer key groove 32 formed on the support shaft (30).
- the key groove connecting protrusions 24 are all formed at the ends of the respective support parts 23, but are not limited thereto and may be formed at at least one end of each support part 23.
- the air passage 25 is formed between the support shaft 30 and the inner circumferential surface, and the air introduced into the air supply passage 118 formed in the main body 110 passes through this space.
- the auxiliary cutting ring 40 may be installed when finishing both ends of the cutting ring assembly 180. In some cases, the auxiliary cutting ring 40 may not be installed, and only the cutting ring 30 may be finished.
- the auxiliary cutting ring 40 has a ring shape having a constant thickness, and a support shaft fitting hole 41 penetrated at the center thereof is formed.
- the cutting passage 42 has a channel shape in which front and rear surfaces are connected to each other, and has the same structure as the cutting passage 12 of the cutting ring 10, and a detailed description thereof will be omitted below.
- the air passage 43 is provided in plural in the circumferential direction of the support shaft fitting hole 41.
- the air introduced into the air supply hole 118 provided in the main body 110 passes through the through hole 173 of the screw 170 and then passes through the air passage 33 of the auxiliary cutting ring 40 to the cutting ring ( 10 and air passages 15 and 25 of the spacing ring 20.
- the spacing ring provided between the cutting ring 10 and the cutting ring 10 may not be formed with an air passage channel 22 formed in the spacing ring 20 of one embodiment.
- the air ring 60 may be installed. The air ring 60 of this embodiment is installed to secure a clearance for air to flow between the gap ring and the cutting ring.
- the air ring 60 has a ring shape having a constant thickness and a support shaft fitting hole 61 penetrated at the center thereof.
- the key groove connecting protrusion 62 extends in the center direction from the inner circumferential surface of the support shaft fitting hole 61, and is fitted into and coupled to the respective outer key grooves 32 formed on the outer circumferential surface of the support shaft 30.
- the outer protrusions 63 are formed on the outer circumferential surface of the ring on the outer circumferential surface, and are disposed on the supporting portion of the spacing ring 20. Moreover, it is preferable that the outer diameter of the air ring 60 is smaller than the inner peripheral surface of the support shaft fitting hole 21 of the space ring 20.
- the air supplied to the air passage of the cutting ring in the cutting ring assembly including the air ring 60 is discharged into the gap formed between the cutting ring and the spacing ring by the air ring 60, thereby cutting the cut rice bran out of the screen. So that the rice bran does not stick to the milled rice grains and remain.
- the temperature of the rice grains is cooled by the friction of the cutting ring and the spacer ring installed in the cutting ring assembly.
- the micromachined rotating body 160 equipped with the screw 170 and the cutting ring assembly 180 is used for a large-scale rice mill.
- at least one cutting ring assembly 180 used for a large scale rice cleaning machine may be installed on the fixed shaft 120.
- the blade 172 of the screw 170 is pushed into the fixed shaft 120 to be located below the hopper 112.
- the cutting ring assembly 180 is installed on the fixed shaft 120.
- at least one cutting ring assembly 180 may be installed in accordance with the length of the fixed shaft 120.
- the auxiliary cutting ring 40 is pushed to the end of the support shaft 30.
- the cutting ring 10 is inserted into the support shaft 30 and pushed to the end of the auxiliary cutting ring 30.
- each key groove connecting protrusion 15 formed in the support shaft fitting hole 11 of the cutting ring 10 is assembled in a state of being fitted into each outer key groove 32 formed on the outer circumferential surface of the support shaft 30.
- the key groove connecting protrusion 14 of the cutting ring 10 moves along the outer key groove 32 formed in the support shaft 30, the cutting ring 10 may be installed accurately without being rotated or twisted.
- the support part 13 of the cutting ring 10 is assembled in a state in which it is in stable contact with the outer peripheral surface of the support shaft 30.
- each of the key groove connecting projections 24 formed in the support shaft fitting hole 21 of the spacing ring 20 is installed in a state of being fitted into each of the outer key grooves 32 formed on the outer circumferential surface of the support shaft 30.
- the key groove connecting protrusion 24 of the gap ring 20 moves along the outer key groove 32 formed in the support shaft 30, so that the gap ring 20 can be installed accurately without being rotated or twisted.
- the support 23 of the spacing ring 20 is installed in a state in which it is in close contact with the outer peripheral surface of the support shaft 30 in a stable manner.
- the other cutting ring 10 is pushed to the fitted gap ring 20, and the new gap ring 20 is pushed to the fitted cutting ring 10 first.
- the cutting ring 10 and the spaced ring 20 are fitted to the support shaft 30 so that the plurality of spaced rings 20 are alternately arranged between the plurality of cutting rings 10.
- the auxiliary cutting ring 40 is assembled at the end of the support shaft 300 such that the plurality of cutting rings 10 and the spacing ring 20 are not separated from the support shaft 30.
- the cutting ring assembly 180 includes a plurality of cutting rings 10, a plurality of spacing rings 20, and an auxiliary cutting ring 40 alternately fitted to the support shaft 30, and then fixed shafts. 120 is mounted.
- the cutting ring assembly 180 when the cutting ring assembly 180 is integrally assembled, the cutting ring assembly 180 may be damaged and the replacement may be easily performed.
- the plurality of cutting rings 10, the plurality of gap rings 20, and the auxiliary cutting rings 40 may be assembled to the fixed shaft 120 so as not to be separated.
- the fixed shaft 120 is a plurality of key grooves are formed in the longitudinal direction on the outer peripheral surface is, of course.
- a plurality of guide blades 50 inclined spirally at a predetermined angle are provided on an outer circumferential surface of which the plurality of cutting rings 10 and the plurality of spacing rings 20 are sequentially assembled.
- the guide blade 50 uses a long steel member, but is not limited thereto. As long as the insertion is made of aluminum or plastic in a suitable form and can block the space between the cutting ring 10 and the cutting ring 10 and the gap ring 20 in the longitudinal direction, it is possible.
- a pair of guide blades 50 are used, but the present invention is not limited thereto, and one guide blade or two or more guide blades may be installed.
- each guide blade 50 installed as described above, when the cutting blade assembly 180 is rotated, the rice grain located above the spacing ring 20 to move the rice grain in the rotational direction of the support shaft 30, the rice grain is mixed.
- the inclination angle (b °) of each guide blade 50 is preferably about 15 ° so that the rice grain is smoothly transferred, but is not limited thereto.
- the inclination angle of the induction blade 50 may adjust the inclination angle of the induction blade 50 within the range of 0 ° to 45 ° according to the length, cutting degree, or yield of the cutting ring assembly 180.
- the cutting ring assembly 180 may adjust the thickness of the spacing ring 20 or the size of the air passage channel 22 to reduce or increase air emissions along the direction in which the grain of rice is inverted and conveyed.
- the thickness of the spacing ring 20 or the size of the air passage channel 22 may be made smaller in the direction in which the grain of rice moves, so that the amount of air supplied may decrease according to the direction in which the grain of rice is conveyed.
- the amount of rice bran generated by cutting decreases as the cutting progresses, so cooling or discharging of rice bran is possible even if the air supply is reduced, thereby saving energy by reducing the air supply.
- Figure 10 is a schematic cross-sectional view showing another embodiment of the rice mill according to the present invention
- Figure 11 is a perspective view of another embodiment of the cutting ring assembly shown in Figure 10
- Figure 12 is an exploded view of the cutting ring assembly shown in Figure 11 Perspective view.
- a hollow cylindrical drive shaft 220 is installed in the cutting ring assembly of another embodiment, compared to the rice mill 100 of the embodiment shown in FIG. There is a difference in that an air supply hole (not shown) is formed in the longitudinal direction of 220.
- a rice mill of such a structure is used for a small rice mill.
- the rice cleaning machine 200 includes a whitening chamber 211 on an upper portion of the main body.
- the hopper 212 is provided at an upper end of the whitening chamber 211, and the brown rice supplied through the hopper 212 is transferred to the brown rice processing rotating body 260.
- the white rice discharge port 213 is provided at the lower end of the other end of the whitening chamber 211 and discharges the rice grain which has been inverted by the brown rice processing rotary body 260 to the outside.
- the rice bran outlet 214 is installed at the lower portion of the brown rice processing rotating body 260, and discharges rice bran, which is rice bran removed from the grains of rice, when the brown rice is turned into white rice.
- the drive shaft 220 has a hollow cylindrical shape and is rotatably installed at the center of the whitening chamber 211 so as to be inclined in the direction of the white rice outlet 213 from the hopper 212.
- the hollow of the drive shaft 220 is used as the air supply hole 218 for supplying air to the micromachined rotary body 260.
- the driven pulley 221 is installed at one end of the drive shaft 220.
- the outer peripheral surface of the drive shaft 220 is provided with a brown rice processing rotating body 260 for pressing and conveying the rice bran of the rice grain supplied through the hopper 212 toward the white rice outlet 213. And both ends of the drive shaft 220 is of course supported by the first bearing 215 and the second bearing (216).
- the minute adjuster 217 is installed at the other end of the whitening chamber 211.
- the cutting ring assembly 280 of another embodiment according to the present invention in order to smoothly transfer the rice grains supplied through the hopper 212 toward the white rice outlet 213, from the hopper 212 toward the white rice outlet 213. Can be installed obliquely.
- the inclination angle of the driving shaft 220 is preferably about 15 °, but is not limited thereto.
- the inclination angle of the drive shaft 220 may be adjusted within the range of 5 ° to 30 ° according to the length, degree of precision, or yield.
- the drive motor is mounted under the main body, the drive pulley is installed on the shaft of the drive motor.
- the belt is connected to the driven pulley 221 of the drive shaft 220 and the drive pulley of the drive motor, respectively.
- the screen 250 is installed at intervals on the outside of the brown rice processing rotating body 260, and discharges the rice bran removed during the milling to the outside.
- the microfabricated rotating body 260 includes a screw 270 and a cutting ring assembly 280.
- the cutting ring assembly 280 of another embodiment includes a plurality of cutting rings 70 and a plurality of spacing rings 80 assembled by being alternately fitted to the support shaft 90, and a cutting ring 70. And a fastening member 97 for fixing the spacer ring 80 to the support shaft 90, and two guide blades 50 coupled to the grooves formed to be inclined to the outer circumferential surfaces of the plurality of cutting ring assemblies.
- a pair of guide blades 50 are used, but the present invention is not limited thereto, and one guide blade or two or more guide blades may be installed.
- the guide blade 50 allows the rice grains located above the spacing ring 80 to move the rice grains in the rotational direction of the support shaft 90 so that the rice grains are mixed and fed to the outlet. do. Therefore, the inclination angle of each guide blade 50 is preferably about 15 ° so that the rice grains are smoothly conveyed, but is not limited thereto.
- the inclination angle of the induction blade 50 may adjust the inclination angle of the induction blade 50 within the range of 0 ° to 45 ° according to the length, degree of cutting, or yield of the cutting ring assembly 280 for the rice mill.
- the support shaft 90 is a cylindrical shape of the hollow 91, and the key grooves 92 and 93 are formed in the longitudinal direction in the outer peripheral surface and the inner peripheral surface, respectively.
- the key groove formed on the outer circumferential surface of the support shaft 90 is called the outer key groove 92, and the key groove engaging protrusion 74 of the plurality of cutting rings 70 and the key groove of the spacer ring 80 are connected to the outer key groove 92.
- the protrusions 84 are sequentially fitted and engaged.
- Four outer keyways 92 according to the present invention are formed at intervals such as 90 °, but are not limited thereto.
- the key groove formed on the inner circumferential surface of the support shaft 90 is referred to as an inner key groove 93, and a key for coupling so that the power of the drive shaft 220 inserted into the support shaft 90 is transmitted is inserted.
- an air supply hole 94 may be formed in the support shaft 90. At least one air supply hole 94 is formed along the longitudinal direction of the support shaft 90 so as to communicate with the hollow 91. Therefore, the outside air supplied to the hollow 91 is discharged radially outward of the cutting ring assembly 280 through the air supply hole 94 and the cutout 82 of the spacing ring 80.
- the plurality of spacing rings 80 are preferably assembled so that the cutouts 82 are cleaned at regular angles in the circumferential direction at the time of assembly so that air is evenly discharged in the circumferential direction.
- One end of the support shaft 90 is provided with a flange 95 for supporting the inserted cutting ring 70 and the spacing ring 80 so as not to fall out, and the other end is formed with a thread 96 on an outer circumferential surface thereof.
- the fastening member 97 has a thread 98 formed on the inner circumferential surface thereof, and is fastened with the thread 96 so that a plurality of cutting rings and gap rings alternately inserted into the other end of the support shaft 90 do not fall out.
- threads are formed at both ends of the support shaft 90 and the fastening member 97 may be screwed at each end.
- FIG. 14 is a front view of another embodiment of the spacing ring shown in FIG. 12.
- the cutting ring 70 of another embodiment of the present invention has a plurality of support parts 73 extending shorter toward the center than the cutting ring 10 of the embodiment shown in FIG. There is a difference in securing an air passage 75 in a narrow space between the outer circumferential surface of 90 and the inner circumferential surface of cutting ring 70.
- the cutting ring 70 of another embodiment has a ring shape having a constant thickness, and a support shaft fitting hole 71 is formed through the center thereof.
- the cutting passage 72 is a channel shape in which the front and rear surfaces are connected to each other.
- the channel includes a bottom surface 72a and a pair of side surfaces 72b extending on both sides of the bottom surface 72a.
- the plurality of cutting passages 72 are formed on the outer circumferential surface of the cutting ring 70 at equal intervals, but may not be equal intervals in other embodiments.
- the rice bran is cut in contact with the edge (edge) of the bottom surface 72a of the channel and the edge (edge) of the side surface 72b when passing through the cutting passage 72.
- the cutting ring 70 of the present embodiment has an edge of the bottom surface 72a and an edge of both sides 72b when the grain of rice passes through the portion where the bottom surface 72a of the channel and the pair of side surfaces 72b meet. It is cut while contacting at the same time, and the cutting effect is excellent (see FIG. 15).
- the channel-shaped cutting passage 72 is the bottom surface 72a is a plane perpendicular to the plane passing through the center axis of the cutting ring 70, both sides 72b are at least 90 degrees to the bottom surface 72a. It is configured to meet with. Therefore, the rugby ball-shaped rice grains passing through the cutting passage 72 are not caught in the corners of the cutting passage 72 to increase the cutting effect.
- a ring between the cutting passage 72 and the cutting passage 72 so that rice grains passing through the space between the cutting ring 70 and the screen 250 contact the edges of the outer circumferential surface of the cutting ring 70 to effectively cut the rice bran.
- the outer circumferential surface of the surface is preferably formed in a plane perpendicular to the plane passing through the central axis of the cutting ring 70, like the bottom surface 72a.
- the support portion 73 extends shortly from the inner circumferential surface of the cutting ring 70 to the support shaft fitting hole 71, and is provided in plurality at regular intervals along the circumferential direction of the cutting ring 70. In this embodiment, four are extended inward toward the center axis of the cutting ring 70, but is not limited thereto.
- the key groove connecting projection 74 is formed at the end of each support portion 73, each key groove connecting projection 74 is fitted in the key groove formed on the corresponding support shaft (90).
- the key groove connecting protrusion 74 is formed at both ends of each support part 73, but is not limited thereto and may be formed at at least one end of each support part 73.
- FIG. 15 is a cross-sectional view taken along line B-B of FIG. 10 and is an explanatory view showing a state in which the grain of rice is cut in the cutting ring assembly of another embodiment shown in FIG.
- the spacing ring 80 according to the present embodiment has a plurality of support portions 23 extending shorter toward the center than the spacing ring 20 of the embodiment shown in FIG. There is a difference in securing the cutout portion 82 in which the inner circumferential surface and the outer circumferential surface are opened to secure the.
- the spacing ring 80 is a ring shape having a support shaft fitting hole 81 formed in the center and having a constant thickness.
- the cutout 82 is a portion open to allow the inner circumferential surface and the outer circumferential surface of the ring to communicate with the cutting ring assembly 280 and is used as a passage through which air supplied from the outside is discharged.
- a plurality of support portions 83 are disposed on the inner circumferential surface of the support shaft fitting holes 81 at regular intervals in the circumferential direction. Preferably four extend inward toward the central axis of the spacing ring 80, but is not limited thereto.
- the key groove connecting protrusion 84 for fitting to the outer key groove 92 formed on the support shaft 90 is formed at the end of each support portion 83, but may be formed only at one end of the support portion 83. have.
Landscapes
- Adjustment And Processing Of Grains (AREA)
Abstract
The present invention relates to a rice milling machine which can dicharge rice bran smoothly and supply enough air to cool the rice grain. More specifically, the present invention relates to a rice milling machine which can process brown rice into white rice that can be cooked without washing, i.e. clean rice (no-wash rice). The rice milling machine according to the present invention comprises: a main body having on one end a hopper through which rice grain is supplied, and having on the other end a discharge port through which rice grain is discharged; a drive shaft rotatably provided in the main body so as to slope from the hopper towards the discharge port; a brown rice processing rotor installed on the drive shaft, and removing rice bran of rice grain supplied through the hopper while compressing and forwarding same toward the discharge port; a screen installed on the exterior of the brown rice processing rotor with a space in between, and separating the removed rice bran; and a drive motor which transmits rotational force to the drive shaft.
Description
본 발명은 쌀겨를 원활하게 배출하고 쌀알을 냉각하기에 충분한 공기를 공급할 수 있는 정미기에 관한 것이다. 더욱 상세하게는 현미를 씻지 않고 취반이 가능한 백미 즉 클린라이스(CLEAN RICE : 무세미)로 가공할 수 있는 정미기에 관한 것이다.The present invention relates to a rice scouring machine capable of supplying sufficient air to smoothly discharge rice bran and cool the rice grains. More specifically, the present invention relates to a rice polisher that can be processed into white rice, which is cookable without washing brown rice, that is, clean rice.
일반적으로 논에서 수확한 벼의 왕겨를 제거한 것을 현미(도정도 100, 백도±20)라 부르고, 현미의 최외층인 과피, 종피, 외배유 및 호분층까지를 말하는 쌀겨층을 제거한 것을 백미라 한다. 백미는 도정 정도에 따라 5분도, 7분도, 10분도 등 다양하게 나뉘고, 현미에서 쌀겨(미강)를 분리하는 공정을 도정 공정이라 하고, 도정 공정에 사용되는 장치를 정미기라 한다.Generally, rice husks removed from rice paddies are called brown rice (100 degrees, white degree ± 20), and rice bran layers, which refer to the outermost layer of brown rice, such as rinds of skin, seed, endosperm, and whistle, are called white rice. White rice is divided into 5 minutes, 7 minutes, and 10 minutes depending on the degree of milling. The process of separating rice bran (rice bran) from brown rice is called the milling process, and the device used in the milling process is called rice milling.
현미를 도정하는 방법으로는 연삭 방식, 마찰 방식, 절삭 방식이 알려져 있다. 본 발명은 절삭 방식의 정미기와 관련된다.As a method for milling brown rice, a grinding method, a friction method, and a cutting method are known. The present invention relates to a rice mill of the cutting method.
대한민국 등록 특허 제664,675호(발명의 명칭 : 겨 절삭형 정미기)에는 중공축과 커터 링과 스페이서 및 배플 링을 구비한 절삭 방식의 정미기가 개시되어 있다. 상기 특허에 개시된 겨 절삭형 정미기는, 통풍구가 형성된 중공의 축에 커터 링과 스페이서가 교대로 삽입되어 있다. 커터 링의 외주면에는 등 간격으로 복수의 원호상의 홈이 형성되어 있고 현미가 원호상의 홈으로 압송되면서 절삭된다. 또한, 스페이서의 외주면에는 현미를 깎아내기 위한 둔각부가 형성되어 있고 중공의 축으로 공급된 공기가 배출되도록 개방된 절결부가 형성되어 있다.Republic of Korea Patent No. 664,675 (name of the invention: bran-cutting rice mill) discloses a rice mill of the cutting method having a hollow shaft, a cutter ring, a spacer and a baffle ring. In the bran cutting type rice polishing machine disclosed in the patent, a cutter ring and a spacer are alternately inserted into a hollow shaft in which a vent hole is formed. On the outer circumferential surface of the cutter ring, a plurality of arc-shaped grooves are formed at equal intervals and the brown rice is cut while being fed into the arc-shaped grooves. In addition, an obtuse portion for cutting brown rice is formed on the outer circumferential surface of the spacer, and an open cutout portion is formed to discharge air supplied to the hollow shaft.
상기 특허에 개시된 겨 절삭형 정미기는, 도정 공정이 완료되어도 정백실에 백미가 완전히 배출되지 못하고 잔량이 잔존하는 문제점이 있다. 이러한 문제점은 장시간 사용할 경우 스크린의 중앙부분이 쳐지면서 스크린과 수평으로 설치된 중공의 축 사이에 틈새가 발생하기 때문이다. 또한, 쌀을 수평으로 압송하기 위해 큰 마력의 구동모터가 필요하기 때문에 제작비용이나 유지비용이 상승되는 문제점이 있다.The bran-cut rice mill disclosed in the above patent has a problem that the white rice is not completely discharged in the whitening chamber and the remaining amount remains even after the milling process is completed. This problem is caused by a gap between the screen and the hollow shaft installed horizontally as the center of the screen is struck when used for a long time. In addition, since a large horsepower driving motor is required to horizontally feed rice, there is a problem in that the manufacturing cost and the maintenance cost are increased.
또한, 호퍼를 통해 공급된 현미를 도정하면, 도정된 백미의 표면에 잔류미강이 깨끗이 처리되지 못하고, 쌀의 온도가 높아져서 보관 중에 변질 되는 문제점이 있다. 이러한 문제점은 중공의 축과 스페이서의 절결부를 통하여 공급되는 공기의 양이 부족하여 쌀겨가 완전히 제거되지 못하고 동시에 도정 중에 쌀이 충분히 냉각되지 못하기 때문이다. 또한, 현미가 커터 링의 외주면에 형성된 원호상의 홈을 원활하게 통과하여 압송되지 못하기 때문이다. 도정 과정에서 쌀알이 원활하게 압송되지 못하면 쌀알이 커터 링의 측벽이나 스크린과 접촉하여 접촉 압력이 높아지고 마찰열이 증가하여 쌀알이 부서지게 된다. 따라서 도정의 수율 즉 정백율이 낮아진다.In addition, when the brown rice supplied through the hopper, the residual rice bran is not cleanly processed on the surface of the polished white rice, the temperature of the rice is high, there is a problem that deterioration during storage. This problem is because the rice bran is not completely removed due to insufficient amount of air supplied through the hollow shaft and the cutout of the spacer, and at the same time, the rice is not sufficiently cooled during milling. This is because the brown rice does not pass smoothly through the arc-shaped groove formed on the outer circumferential surface of the cutter ring. If the grains are not conveyed smoothly during the milling process, the grains of rice grains come into contact with the side wall or the screen of the cutter ring, resulting in high contact pressure and increased frictional heat. As a result, the yield of the mill is reduced.
본 발명은 상기와 같은 종래의 절삭 방식 정미기의 문제점을 개선하기 위하여 고안된 것이다.The present invention is devised to improve the problems of the conventional cutting type rice polishing machine as described above.
본 발명은 현미 가공 회전체가 장착된 구동축이 현미를 공급하는 호퍼에서 백미 배출구 방향으로 경사지게 설치되기 때문에 도정된 백미는 배출구 방향으로 자연적으로 흘러내려 정백실 내부에 잔량이 남지 않는 정미기를 제공하는 것을 목적으로 한다.The present invention is because the drive shaft equipped with the brown rice processing rotating body is installed inclined in the direction of the white rice outlet in the hopper for supplying the brown rice, the milled rice is naturally flowing in the discharge direction to provide a rice polisher with no residue remaining inside the white room. The purpose.
또한, 본 발명은 도정시에 쌀알이 원활하게 압송되도록 구성된 정미기를 제공하는 것을 목적으로 한다.In addition, an object of the present invention is to provide a rice mill configured to smoothly convey the grains of rice at the time of milling.
또한, 본 발명은 도정시에 쌀겨를 원활하게 배출하고 쌀알을 냉각하기에 충분한 공기를 공급하도록 구성된 정미기를 제공하는 것을 목적으로 한다.It is also an object of the present invention to provide a rice polisher configured to smoothly discharge rice bran at the time of milling and to supply sufficient air to cool the rice grains.
본 발명의 일 측면에 따라서, 현미 가공 회전체가 설치된 절삭 방식의 정미기가 제공된다. 본 발명에 따른 정미기는, 일단에 쌀알이 공급되는 호퍼를 구비하고 타단에 쌀알이 배출되는 배출구를 구비한 본체와, 호퍼에서 배출구 방향으로 경사지도록 본체에 회전 가능하게 설치된 구동축과, 구동축에 장착되고 호퍼를 통해 공급된 쌀알의 쌀겨를 제거하면서 배출구 방향으로 압착 이송하는 현미 가공 회전체와, 현미 가공 회전체의 외측에 간격을 두고 설치되며 제거된 쌀겨만을 분리하는 스크린과, 구동축에 회전력을 전달하는 구동모터를 포함한다.According to one aspect of the present invention, there is provided a milling machine of a cutting method provided with a micromachined rotating body. The rice cleaning machine according to the present invention includes a main body having a hopper to which rice grains are supplied at one end and an outlet for discharging rice grains at the other end thereof, a drive shaft rotatably installed on the main body so as to be inclined in the discharge port direction from the hopper, and mounted on the drive shaft. The brown rice processing rotating body which presses and transports the rice bran of rice grain supplied through the hopper while being pressed and discharged in the direction of the outlet, the screen which is installed at the outside of the brown rice processing rotating body and separates only the removed rice bran, and transmits the rotational force to the drive shaft. It includes a drive motor.
본 발명에 따른 일 실시예의 현미 가공 회전체는, 구동축에 장착되는 스크류와, 스크류와 이웃하게 설치되도록 중공의 실린더 형상이고, 내주면과 외주면에 길이 방향으로 적어도 하나의 키홈이 각각 형성된 지지축과, 지지축에 끼워져서 결합된 복수의 절삭 링과, 복수의 절삭 링 사이에 배치되도록 지지축에 끼워져서 결합된 복수의 간격 링을 포함한다. 본 발명에 따른 절삭 링은, 일정한 두께의 링 형상이고, 외주면에 쌀알이 통과되면서 쌀겨가 절삭되도록 링의 양 측면을 연결하도록 형성된 복수의 절삭 통로를 구비하고, 내주면에 형성된 키홈 연결 돌기가 구동축의 외주면에 형성된 키홈에 끼워져서 결합된다. 절삭 통로는 링의 양 측면으로 연장되는 채널 형상이고, 채널은 바닥면과 바닥면의 양측에서 연장된 한 쌍의 측면을 포함한다. 절삭 통로를 통과하는 현미는 채널의 에지와 접촉하여 쌀겨(미강)가 절삭되어 정미된다. 특히, 채널의 모서리 부근에서 바닥면과 측면에 동시에 접촉하면서 정미가 이루어진다. 또한, 각각의 간격 링은, 일정한 두께를 갖는 링 형상이고, 복수의 절삭 링 사이에 배치되고, 내주면에 형성된 키홈 연결 돌기가 지지축의 외주면에 형성된 키홈에 끼워져서 결합된다.The micro-machined rotary body of an embodiment according to the present invention includes a screw mounted on a drive shaft, a support shaft having a hollow cylindrical shape so as to be installed adjacent to the screw, and having at least one key groove formed in the longitudinal direction on the inner and outer circumferential surfaces thereof, And a plurality of cutting rings fitted and coupled to the support shaft, and a plurality of gap rings fitted and coupled to the support shaft so as to be disposed between the plurality of cutting rings. The cutting ring according to the present invention has a ring shape having a constant thickness, and has a plurality of cutting passages formed to connect both sides of the ring such that rice bran is cut while rice grains are passed through the outer circumferential surface, and a keyway connection protrusion formed on the inner circumferential surface of the driving shaft. It is fitted in the key groove formed on the outer peripheral surface. The cutting passage has a channel shape extending to both sides of the ring, and the channel includes a bottom surface and a pair of sides extending from both sides of the bottom surface. The brown rice passing through the cutting passage contacts the edge of the channel and the rice bran is cut and polished. In particular, netting is achieved while simultaneously contacting the bottom and side surfaces near the edge of the channel. Moreover, each spacing ring is ring-shaped with fixed thickness, is arrange | positioned between a some cutting ring, and the keyway connection protrusion formed in the inner peripheral surface is fitted in the key groove formed in the outer peripheral surface of the support shaft, and is engaged.
일 실시예에 있어서, 절삭 링의 바닥면은 절삭 링의 중심 축선을 통과하는 평면에 수직인 평면이고, 양 측면은 바닥면과 90°이상의 각도로 만나도록 구성될 수 있다. 또한, 스크린과 절삭 링 사이의 공간을 통과하는 쌀알의 절삭 효과를 높이기 위하여 각각의 이웃하는 절삭 통로 사이의 외주면은 절삭 링의 중심 축선을 통과하는 평면에 수직인 평면으로 형성할 수 있다.In one embodiment, the bottom surface of the cutting ring is a plane perpendicular to the plane passing through the center axis of the cutting ring, and both sides may be configured to meet the bottom surface at an angle of at least 90 °. In addition, in order to increase the cutting effect of the grain of rice passing through the space between the screen and the cutting ring, the outer peripheral surface between each neighboring cutting passage may be formed in a plane perpendicular to the plane passing through the center axis of the cutting ring.
일 실시예에 있어서, 절삭 링은 내측으로 삽입되어 결합되는 지지축과 내주면 사이에 공기 통로를 확보하도록 절삭 링을 지지하고, 내주면에서 원주 방향으로 일정한 간격으로 배치되고, 중심 축선을 향하여 내측으로 연장된 복수의 지지부와, 복수의 지지부 중 적어도 하나의 단부에 형성된 키홈 연결 돌기를 포함할 수 있다.In one embodiment, the cutting ring supports the cutting ring so as to secure an air passage between the support shaft and the inner circumferential surface inserted and coupled inwardly, and is disposed at regular intervals in the circumferential direction from the inner circumferential surface and extends inwardly toward the center axis line. And a plurality of support portions and keyway connection protrusions formed on at least one end of the plurality of supports.
일 실시예에 있어서, 간격 링은 내측으로 삽입되어 결합되는 지지축과 내주면 사이에 공기 통로를 확보하도록 간격 링을 지지하고, 내주면에서 원주 방향으로 일정한 간격으로 배치되고, 중심 축선을 향하여 내측으로 연장된 복수의 지지부와, 복수의 지지부 중 적어도 하나의 단부에 형성된 키홈 연결 돌기와, 링의 일 측면에 외주면과 내주면이 연통하는 공기 통로를 확보하기 위하여 링의 일 측면에 반경 방향으로 형성된 공기 통로 채널을 포함한다.In one embodiment, the spacing ring supports the spacing ring so as to secure an air passage between the support shaft and the inner circumferential surface inserted and coupled inwardly, and is disposed at regular intervals in the circumferential direction from the inner circumferential surface, and extends inward toward the central axis. A plurality of supporting portions, a keyway connecting protrusion formed at at least one end of the plurality of supporting portions, and an air passage channel formed at one side of the ring in a radial direction so as to secure an air passage in which the outer and inner circumferential surfaces communicate on one side of the ring. Include.
몇몇 실시예에 있어서, 복수의 절삭 링 중 적어도 하나의 최외측 단부에 설치되기 위하여 일정한 두께의 링 형상이고, 외주면에 쌀알이 통과되면서 쌀겨가 절삭되도록 링의 양 측면을 연결하도록 형성된 복수의 절삭 통로를 구비하고, 절삭 링의 공기 통로와 연통되도록 공기 통로가 형성된 보조 절삭 링을 더 포함할 수 있다.In some embodiments, a plurality of cutting passages are formed in a ring shape of a certain thickness so as to be installed at the outermost end of at least one of the plurality of cutting rings, and are formed to connect both sides of the ring so that the rice bran is cut while passing through the outer circumferential surface And an auxiliary cutting ring in which an air passage is formed to communicate with the air passage of the cutting ring.
몇몇 실시예에 있어서, 도정 공정에서 구동축의 외주면인 본체 말단에 형성된 공기 공급 구멍을 통해서 절삭 링의 내주면 및 간격 링의 내주면에 의해서 형성되는 공간을 통하여 쌀알을 냉각하기 위한 공기를 공급할 수도 있다. 또한, 간격 링은 내측으로 삽입되어 결합되는 지지축과 내주면 사이에 공기 통로를 확보하도록 링을 지지하고, 내주면에 원주 방향으로 일정한 간격으로 배치되고, 중심 축선을 향하여 내측으로 연장된 복수의 지지부를 포함하고, 간격 링의 키홈 연결 돌기는 적어도 하나의 간격 링 지지부의 단부에 형성될 수 있다. 또한, 간격 링과 절삭 링 사이로 공기가 통하도록 틈새를 확보하기 위하여 에어 링을 끼워 넣는다. 에어 링은 일정한 두께의 링 형상이고, 절삭 링과 간격 링 사이에 배치되고, 외경이 간격 링의 내주면 보다 작고, 내주면에 형성된 키홈 연결 돌기가 지지축의 외주면에 형성된 키홈에 끼워져서 결합될 수 있다.In some embodiments, air for cooling the rice grains may be supplied through a space formed by the inner circumferential surface of the cutting ring and the inner circumferential surface of the spacing ring through an air supply hole formed in the main body end, which is the outer circumferential surface of the drive shaft, in the refining process. In addition, the spacer ring supports the ring so as to secure an air passage between the support shaft and the inner circumferential surface inserted and coupled inwardly, and is disposed at regular intervals in the circumferential direction on the inner circumferential surface, and extends inwardly toward the center axis. And the keyway connecting protrusion of the spacing ring may be formed at an end of the at least one spacing ring support. In addition, an air ring is inserted in order to secure a clearance between the gap ring and the cutting ring to allow air to flow. The air ring has a ring shape having a constant thickness and is disposed between the cutting ring and the spacing ring, the outer diameter of which is smaller than the inner circumferential surface of the spacing ring, and a keyway connecting protrusion formed on the inner circumferential surface can be fitted into the key groove formed on the outer circumferential surface of the support shaft.
몇몇 실시예에 있어서, 본 발명에 따른 현미 가공 회전체가 장착된 구동축은 호퍼를 통해 공급된 쌀알을 배출구 방향으로 원활하게 이송하기 위해, 호퍼에서 배출구 방향으로 경사지게 설치될 수 있다. 구동축의 경사 각도를 5°내지 30° 범위로 하는 것이 바람직하다.In some embodiments, the drive shaft equipped with the micro-processing rotary body according to the present invention may be installed to be inclined toward the outlet in the hopper in order to smoothly transfer the rice grain supplied through the hopper in the outlet direction. It is preferable that the inclination angle of the drive shaft is in the range of 5 ° to 30 °.
몇몇 실시예에 있어서, 본 발명에 따른 절삭 링 조립체는 쌀알의 압송을 원활하게 하기 위한 유도날을 더 포함할 수 있다. 유도날은 복수의 절삭 링의 외주면에 구동축의 길이 방향을 따라서 일정 각도로 나선형으로 경사지도록 삽입 고정될 수 있다. 유도날의 고정시에 경사 각도를 0°내지 45° 범위로 하는 것이 바람직하다.In some embodiments, the cutting ring assembly according to the present invention may further comprise an induction blade to facilitate the feeding of rice grains. The guide blade may be inserted and fixed to the outer circumferential surface of the plurality of cutting rings to be inclined spirally at an angle along the longitudinal direction of the drive shaft. It is preferable that the inclination angle is in the range of 0 ° to 45 ° when the guide blade is fixed.
다른 실시예에 따른 현미 가공 회전체는, 도정 공정에서 중공의 지지축을 통하여 공급되는 공기를 이용하여 쌀알을 냉각시키도록 지지축에는 길이 방향을 따라서 적어도 하나의 공기 공급 구멍을 형성할 수 있다. 이때 구동축은 중공의 실린더 형상이고, 지지축의 공기 공급 구멍과 연통되도록 구동축에는 길이 방향을 따라서 적어도 하나의 공기 공급 구멍을 구비한다. 또한, 지지축의 공기 공급 구멍을 통하여 공급된 공기가 간격 링을 통과하여 배출되도록, 간격 링은 내주면과 외주면이 개방된 절결부를 포함할 수 있다.According to another embodiment, the brown rice processing rotating body may form at least one air supply hole along the length direction of the support shaft to cool the rice grains by using the air supplied through the hollow support shaft in the refining process. At this time, the drive shaft is a hollow cylindrical shape, the drive shaft is provided with at least one air supply hole along the longitudinal direction so as to communicate with the air supply hole of the support shaft. In addition, the gap ring may include a cutout in which the inner circumferential surface and the outer circumferential surface are opened such that air supplied through the air supply hole of the support shaft is discharged through the gap ring.
본 발명에 따른 정미기는, 호퍼에서 배출구 방향으로 경사진 상태로 설치된 구동축에 현미 가공 회전체가 설치되기 때문에 백미는 배출구 방향으로 자연적으로 흘러내려 정백실 내부에 잔량이 남지 않아 회수율이 향상되는 효과가 있다. 또한, 백미는 배출구 방향으로 흘러내리면서 압송하기 때문에 마력이 작은 구동모터를 사용할 수 있으므로 제작비용이나 유지비용을 절감할 수 있는 효과가 있다.The rice mill according to the present invention, because the brown rice processing rotating body is installed on the drive shaft inclined in the direction of the outlet from the hopper, the white rice flows naturally in the outlet direction so that the remaining amount does not remain in the interior of the white room, the recovery rate is improved have. In addition, since white rice is pumped while flowing down toward the outlet, it is possible to use a driving motor having a small horsepower, thereby reducing the manufacturing cost and maintenance cost.
또한, 본 발명에 따른 정미기는, 절삭 링이 채널 형상의 절삭 통로가 형성되어 현미를 손상시키지 않고 쌀겨 층을 제거할 수 있는 효과가 있다. 또한, 쌀이 이동하는 절삭 링과 절삭 링 사이의 절삭 통로는 채널 형상으로 형성되어 있어서 도정되는 쌀알의 표면을 효과적으로 절삭할 수 있다.In addition, the rice mill according to the present invention has the effect that the cutting ring is a channel-shaped cutting passage is formed can remove the rice bran layer without damaging the brown rice. In addition, the cutting passage between the cutting ring and the cutting ring to move the rice is formed in the channel shape can effectively cut the surface of the rice grain to be milled.
또한, 본 발명에 따른 정미기는, 절삭 링과 간격 링 사이로 많은 공기를 균일하게 공급한다. 따라서 쌀알의 이송을 원활하게 하고 절삭된 쌀겨를 완전히 배출시켜서 잔류 미강이 쌀알의 표면에 달라붙지 않고, 쌀알을 효과적으로 냉각하여 도정된 쌀알의 변질을 방지한다. 그리고 도정된 쌀의 표면이 깨끗한 무세미를 생산할 수 있고 장기간 보관이 가능하다.In addition, the rice mill according to the present invention supplies a large amount of air evenly between the cutting ring and the spacing ring. Therefore, the rice grains are smoothly transferred and the rice brans are completely discharged so that the remaining rice bran does not stick to the surface of the rice grains and effectively cools the rice grains to prevent deterioration of the milled rice grains. In addition, the surface of the milled rice can produce clean, clean, and long-term storage.
또한, 본 발명에 따른 정미기는 현미 가공 회전체에 유도날을 구비하고 있어서, 도정시에 쌀알을 효과적으로 압송할 수 있어서 정미기의 고속 운전이 가능하고, 도정의 정도를 용이하게 조절할 수 있다. 또한, 도정시 쌀알의 손상이 적어서 도정시 운전 조건에 따라서 92 % 이상의 현백율을 달성할 수 있다.In addition, the rice cleaning machine according to the present invention is provided with an induction blade in the brown rice processing rotating body, it is possible to effectively feed the grain of rice at the time of milling, it is possible to operate the rice mill at high speed, it is possible to easily adjust the degree of milling. In addition, the rice grains are less damaged during the milling, so that the susceptibility of 92% or more can be achieved depending on the driving conditions during the milling.
도 1은 본 발명에 따른 정미기의 일 실시예의 사시도이다.1 is a perspective view of one embodiment of a rice mill according to the present invention.
도 2는 도 1에 도시된 정미기의 일부 단면도이다.2 is a partial cross-sectional view of the rice mill shown in FIG. 1.
도 3은 도 2에 도시된 현미 가공 회전체에 설치된 스크류의 일 실시예의 사시도이다.3 is a perspective view of one embodiment of a screw installed in the microfabricated rotating body shown in FIG.
도 4는 도 2에 도시된 현미 가공 회전체에 설치된 절삭 링 조립체의 일 실시예의 사시도이다.4 is a perspective view of one embodiment of a cutting ring assembly installed in the microfabricated rotating body shown in FIG. 2.
도 5는 도 4에 도시된 절삭 링 조립체의 분해 사시도이다.5 is an exploded perspective view of the cutting ring assembly shown in FIG. 4.
도 6는 도 5에 도시된 절삭 링의 일 실시예의 정면도이다.6 is a front view of one embodiment of the cutting ring shown in FIG.
도 7은 도 5에 도시된 간격 링의 일 실시예의 정면도이다.7 is a front view of one embodiment of the spacing ring shown in FIG.
도 8은 도 2의 A-A선 단면도로써 도 4에 도시된 일 실시예의 절삭 링 조립체에서 쌀알이 절삭되는 상태를 나타내는 설명도이다.FIG. 8 is a cross-sectional view taken along the line A-A of FIG. 2 and is an explanatory view showing a state in which the grain of rice is cut in the cutting ring assembly of the embodiment shown in FIG.
도 9는 본 발명에 따른 절삭 링 조립체에 사용될 수 있는 에어 링의 일 실시예의 정면도이다.9 is a front view of one embodiment of an air ring that may be used in a cutting ring assembly in accordance with the present invention.
도 10은 본 발명에 따른 정미기의 다른 실시예를 나타내는 개략적인 단면도이다.10 is a schematic cross-sectional view showing another embodiment of the rice cleaning machine according to the present invention.
도 11은 도 10에 도시된 절삭 링 조립체의 다른 실시예의 사시도이다.11 is a perspective view of another embodiment of the cutting ring assembly shown in FIG. 10.
도 12는 도 11에 도시된 절삭 링 조립체의 분해 사시도이다.12 is an exploded perspective view of the cutting ring assembly shown in FIG. 11.
도 13은 도 12에 도시된 절삭 링의 다른 실시예의 정면도이다.FIG. 13 is a front view of another embodiment of the cutting ring shown in FIG. 12.
도 14는 도 12에 도시된 간격 링의 다른 실시예의 정면도이다.14 is a front view of another embodiment of the spacing ring shown in FIG. 12.
도 15는 도 10의 B-B선 단면도로써 도 11에 도시된 다른 실시예의 절삭 링 조립체에서 쌀알이 절삭되는 상태를 나타내는 설명도이다.FIG. 15 is a cross-sectional view taken along line B-B of FIG. 10 and is an explanatory view showing a state in which the grain of rice is cut in the cutting ring assembly of another embodiment shown in FIG.
본 발명의 그 밖의 목적, 특정한 장점들과 신규한 특징들은 첨부된 도면들과 연관되어지는 이하의 상세한 설명과 바람직한 실시예들로부터 더욱 분명해질 것이다.Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings.
이하, 본 발명에 따른 정미기에 대한 바람직한 실시예들을 첨부된 도면들에 의거하여 상세하게 설명한다. 설명에 있어서, 링 형상을 갖는 절삭 링, 간격 링 및 에어 링의 설명에서, 쌀알의 이송 방향에서 볼 경우 일 측면은 링의 전면이고 타 측면은 링의 후면이며, 일 측면과 타 측면이 연결된 외측면을 링의 외주면이라 하고 내측면을 링의 내주면이라고 정의한다.Hereinafter, preferred embodiments of the rice cleaning machine according to the present invention will be described in detail with reference to the accompanying drawings. In the description, in the description of the cutting ring, the spacing ring and the air ring having a ring shape, one side is the front side of the ring and the other side is the rear side of the ring when viewed in the conveying direction of the grain of rice, and the one side and the other side are connected The side is called the outer circumferential surface of the ring and the inner side is defined as the inner circumferential surface of the ring.
도 1은 본 발명에 따른 정미기의 일 실시예의 사시도이고, 도 2는 도 1에 도시된 정미기의 일부 단면도이다.1 is a perspective view of one embodiment of a rice mill according to the present invention, Figure 2 is a partial cross-sectional view of the rice mill shown in FIG.
도 1을 참조하면, 정미기(100)는 본체(110)를 포함한다. 정백실(111)은 본체(110) 상부에 구비한다. 호퍼(112)는 정백실(111)의 일단 상부에 설치되어 있고, 호퍼(112)를 통해 공급된 현미는 현미 가공 회전체(160)로 이송된다. 백미 배출구(113)는 정백실(111)의 타단 하부에 설치되어 있고, 현미 가공 회전체(160)에 의해 도정된 쌀알을 외부로 배출한다. 미강 배출구(114)는 현미 가공 회전체(160)의 하부에 설치되고, 현미가 백미로 도정될 때 쌀알에서 제거된 쌀겨인 미강을 외부로 배출한다.Referring to FIG. 1, the rice polisher 100 includes a main body 110. The whitening chamber 111 is provided on the main body 110. The hopper 112 is provided at an upper end of the whitening chamber 111, and the brown rice supplied through the hopper 112 is transferred to the brown rice processing rotating body 160. The white rice discharge port 113 is installed at the other end lower part of the whitening chamber 111, and discharges the rice grain which was inverted by the brown rice processing rotating body 160 to the outside. The rice bran outlet 114 is installed at the bottom of the brown rice processing rotating body 160, and discharges rice bran, which is rice bran removed from the grains of rice, when the brown rice is inverted to white rice.
구동축(120)은 호퍼(112)에서 백미 배출구(113) 방향으로 경사지도록 정백실(111)의 중심에 회전 가능하게 설치된다. 종동풀리(121)는 구동축(120)의 일단에 설치된다. 또한, 구동축(120)의 외주면에는 호퍼(112)를 통해 공급된 쌀알의 쌀겨를 제거하면서 백미 배출구(113) 방향으로 압착 이송하는 현미 가공 회전체(160)가 설치된다. 그리고 구동축(120)의 양단은 제1 베어링(115)과 제2 베어링(116)으로 지지되어 있음은 물론이다. 분도 조절기(117)는 정백실(111)의 타단에 설치되고, 현미 가공 회전체(160)에 의해 도정된 백미가 분도 조절기의 판을 밀고 백미 배출구(113)로 배출된다. 본 발명에 따른 일 실시예의 절삭 링 조립체(180)는, 호퍼(112)를 통해 공급된 쌀알을 백미 배출구(113) 방향으로 원활하게 이송하기 위해, 호퍼(112)에서 백미 배출구(113) 방향으로 경사지게 설치될 수 있다. 이때 구동축(120)의 경사 각도(a°)는 대략 15°정도가 바람직하나, 이에 한정되는 것은 아니다. 구동축(120)의 경사 각은 길이나 도정 정도나 수율에 따라서 경사 각도를 5°~ 30°범위 내에서 조절할 수 있다.The drive shaft 120 is rotatably installed in the center of the white room 111 so as to be inclined toward the white rice outlet 113 from the hopper 112. The driven pulley 121 is installed at one end of the drive shaft 120. In addition, the outer peripheral surface of the drive shaft 120 is provided with a brown rice processing rotating body 160 for pressing and conveying the rice bran of the rice grain supplied through the hopper 112 in the direction of the white rice outlet (113). And both ends of the drive shaft 120 is of course supported by the first bearing 115 and the second bearing 116. The minute adjuster 117 is installed at the other end of the whitening thread 111, and the white rice inverted by the brown rice processing rotating body 160 pushes the plate of the minute adjuster and is discharged to the white rice outlet 113. Cutting ring assembly 180 of the embodiment according to the present invention, in order to smoothly transfer the rice grain supplied through the hopper 112 in the direction of the white rice outlet 113, in the direction of the white rice outlet 113 from the hopper 112. Can be installed obliquely. In this case, the inclination angle a of the driving shaft 120 is preferably about 15 °, but is not limited thereto. The inclination angle of the drive shaft 120 can adjust the inclination angle within the range of 5 ° ~ 30 ° according to the length, degree of precision or yield.
구동모터(130)는 본체(110) 하부에 장착되고, 구동모터(130)의 축에 구동풀리(미되시 됨)가 설치된다. 벨트(140)는 구동축(120)의 종동풀리(121)와 구동모터(130)의 구동풀리에 각각 연결되어 있다. 따라서 구동모터(120)가 작동하면 구동풀리가 회전하면서 벨트(140)가 회전하고, 벨트(140)의 회전력에 의해 종동풀리(121)가 회전된다. 종동풀리(121)의 회전력은 구동축(120)에 전달되고 구동축(120)의 회전 방향과 동일 방향으로 현미 가공 회전체(160)가 회전한다. 스크린(150)은 현미 가공 회전체(160)의 외측에 간격을 두고 설치되며, 도정시 제거된 쌀겨를 외부로 배출한다. 현미 가공 회전체(160)는 스크류(170)와 절삭 링 조립체(180)를 포함한다. 본 발명의 일 실시예에 따른 현미 가공 회전체는 절삭 링 조립체를 사용하였으나, 이에 한정하는 것은 아니고 롤러 조립체, 연마 조립체 등을 사용할 수도 있다.The drive motor 130 is mounted below the main body 110 and a drive pulley (not shown) is installed on the shaft of the drive motor 130. The belt 140 is connected to the driven pulley 121 of the drive shaft 120 and the drive pulley of the drive motor 130, respectively. Therefore, when the driving motor 120 operates, the belt 140 rotates while the driving pulley rotates, and the driven pulley 121 is rotated by the rotational force of the belt 140. The rotational force of the driven pulley 121 is transmitted to the drive shaft 120 and the micro-machined rotating body 160 rotates in the same direction as the rotational direction of the drive shaft 120. Screen 150 is installed at intervals on the outside of the brown rice processing rotating body 160, and discharges the rice bran removed during the milling to the outside. The microfabricated rotating body 160 includes a screw 170 and a cutting ring assembly 180. The micro-machined rotary body according to an embodiment of the present invention uses a cutting ring assembly, but is not limited thereto. A roller assembly, a polishing assembly, or the like may also be used.
도 2 및 도 3을 참조하면, 구동축(120)이 회전하면 호퍼(112)로 공급된 현미는 현미 가공 회전체(160)인 스크류(170)에 의해서 절삭 링 조립체(180)를 향하여 압송된다. 스크류(170)는 구동축(120)에 장착되기 위하여 중심이 관통된 축 구멍(171)이 형성되고, 외주면에 나선형으로 날개(172)를 구비한다. 또한, 축 구멍(171)에서 원주 방향으로 복수의 관통 구멍(173)이 형성된다. 그리고, 스크류(120)에 의해 압송된 현미는 구동축(120)과 함께 회전하는 절삭 링 조립체(180)의 인접하는 절삭 통로(12)를 통과하면서 백미 배출구(113) 방향으로 압송된다. 절삭 통로(12)를 통과한 쌀알은 절삭 통로(12)의 바닥면(12a)과 바닥면(12a)의 양측에 연장된 한 쌍의 측면(12b)의 모서리와 접촉하면서 통과하므로 현미의 쌀겨가 절삭되어 제거된다. 2 and 3, when the drive shaft 120 rotates, the brown rice supplied to the hopper 112 is pushed toward the cutting ring assembly 180 by the screw 170 which is the brown rice processing rotating body 160. The screw 170 has a shaft hole 171 through which a center thereof is penetrated to be mounted on the drive shaft 120, and has a blade 172 spirally formed on an outer circumferential surface thereof. Further, a plurality of through holes 173 are formed in the axial hole 171 in the circumferential direction. Then, the brown rice pushed by the screw 120 is pushed toward the white rice outlet 113 while passing through the adjacent cutting passage 12 of the cutting ring assembly 180 that rotates together with the drive shaft 120. The rice grains passing through the cutting passage 12 pass through the bottom surface 12a of the cutting passage 12 and the edges of the pair of side surfaces 12b extending on both sides of the bottom surface 12a. It is cut off and removed.
본 실시예에 따른 정미기(100)는 종동풀리(121)와 인접한 본체(110)의 외부에 공기를 공급하는 공기 공급 구멍(118)을 구비한다. 공기 공급 구멍(118)으로 공급된 공기는 현미 가공 회전체(160)인 스크류(170)에 형성된 관통 구멍(173)을 지나 절삭 링 조립체(180)에 설치된 각각의 링에 형성되어 있는 공기 통로로 공급된다. 이와 같이 공급된 다량의 공기는 절삭된 쌀겨인 미강을 스크린(150)의 외부로 배출시켜 미강이 쌀알에 달라붙어 잔류하지 않도록 한다. 또한, 절삭 링 조립체(180)에 설치된 절삭 링과 간격 링의 마찰에 의하여 온도가 높아진 쌀알을 냉각시킨다.The rice mill 100 according to the present embodiment includes an air supply hole 118 that supplies air to the outside of the main body 110 adjacent to the driven pulley 121. The air supplied to the air supply hole 118 passes through the through hole 173 formed in the screw 170, the micromachined rotating body 160, into an air passage formed in each ring installed in the cutting ring assembly 180. Supplied. The large amount of air supplied as described above discharges the rice bran which is cut rice bran to the outside of the screen 150 so that the rice bran does not stick to the rice grains and remains. In addition, the rice grains having a high temperature are cooled by friction between the cutting ring and the spacer ring installed in the cutting ring assembly 180.
도 4는 도 2에 도시된 현미 가공 회전체에 설치된 절삭 링 조립체의 일 실시예의 사시도이고, 도 5는 도 4에 도시된 절삭 링 조립체의 분해 사시도이다.4 is a perspective view of one embodiment of a cutting ring assembly installed in the microfabricated rotating body shown in FIG. 2, and FIG. 5 is an exploded perspective view of the cutting ring assembly shown in FIG.
도 4를 참조하면, 본 실시예의 현미 가공 회전체(160)에 설치된 절삭 링 조립체(180)는 지지축(30)에 교대로 끼워져서 조립된 복수의 절삭 링(10) 및 복수의 간격 링(20)과, 양단에 각각 설치된 보조 절삭 링(40)과 복수의 절삭 링(10)의 외주면에 경사지도록 형성된 홈에 결합된 복수의 유도날(50)을 포함한다.Referring to FIG. 4, the cutting ring assembly 180 installed in the micromachined rotating body 160 of the present embodiment includes a plurality of cutting rings 10 and a plurality of spacing rings assembled by being alternately fitted to the support shaft 30. 20) and a plurality of guide blades 50 coupled to grooves formed so as to be inclined to outer peripheral surfaces of the auxiliary cutting ring 40 and the plurality of cutting rings 10 respectively provided at both ends.
도 5를 참조하면, 일 실시예의 지지축(30)은 고정축(120)에 장착될 수 있도록 중공축(31)이 형성되고, 외주면과 내주면에 각각 길이 방향으로 키홈(32, 33)이 형성되어 있다. 그 중 지지축(30)의 외주면에 형성된 키홈은 외측 키홈(32)이라 하고, 외측 키홈(32)에 복수의 절삭 링(10)의 키홈 결합 돌기(14)와 간격 링(20)의 키홈 결합 돌기(24)가 끼워져 결합된다. 본 발명에 따른 외측 키홈(32)은 90°등 간격으로 4개 형성되어 있으나 이에 한정하는 것은 아니다. 그리고 지지축(30)의 내주면에 형성된 키홈을 내측 키홈(33)이라 하고, 지지축(30)의 중공(31)으로 삽입된 구동축(120)의 동력이 전달되도록 결합하기 위한 키가 삽입된다. 또한, 지지축(30)에는 공기 공급 구멍(34)이 형성될 수도 있다. 공기 공급 구멍(34)은 중공축(31)과 연통되도록 지지축(30)의 길이 방향을 따라서 하나 이상 형성된다. 따라서 중공축(31)으로 공급된 외부의 공기는 공기 공급 구멍(34)을 통과해서 절삭 링 조립체(180)의 반경 방향 외부로 배출된다. Referring to FIG. 5, the support shaft 30 of one embodiment has a hollow shaft 31 formed to be mounted on the fixed shaft 120, and key grooves 32 and 33 are formed in the longitudinal direction on the outer circumferential surface and the inner circumferential surface, respectively. It is. The key groove formed on the outer circumferential surface of the support shaft 30 is called the outer key groove 32, and the key groove engaging projection 14 of the plurality of cutting rings 10 and the key groove of the spacer ring 20 are connected to the outer key groove 32. The protrusions 24 are fitted and engaged. Four outer key grooves 32 according to the present invention are formed at intervals such as 90 °, but are not limited thereto. And the key groove formed on the inner circumferential surface of the support shaft 30 is called the inner key groove 33, the key for coupling so as to transmit the power of the drive shaft 120 inserted into the hollow 31 of the support shaft 30 is inserted. In addition, the air supply hole 34 may be formed in the support shaft 30. At least one air supply hole 34 is formed along the longitudinal direction of the support shaft 30 so as to communicate with the hollow shaft 31. Therefore, the outside air supplied to the hollow shaft 31 passes through the air supply hole 34 and is discharged radially outward of the cutting ring assembly 180.
도 6은 본 발명에 따른 절삭 링의 일 실시예가 도시되어 있다. 절삭 링(10)은 지지축 끼움 구멍(11)이 중심에 형성되고 일정한 두께를 갖는 링 형상이다. 절삭 통로(12)는 전면과 후면이 서로 연결된 채널 형상이다. 채널은 바닥면(12a)과 바닥면(12a)의 양측에 연장된 한 쌍의 측면(12b)을 포함한다. 절삭 통로(12)는 절삭 링(10)의 외주면에 등 간격으로 복수 개가 형성되어 있으나, 다른 실시예에 있어서 등 간격이 아닐 수도 있다. 쌀알은 절삭 통로(12)를 통과할 때 채널의 바닥면(12a)의 에지(모서리), 측면(12b)의 에지(모서리)와 접촉하여 쌀겨가 절삭된다. 특히, 본 실시예의 절삭 링(10)은 쌀알이 채널의 바닥면(12a)과 한 쌍의 측면(12b)이 만나는 부분을 통과할 때 바닥면(12a)의 모서리와 양 측면(12b)의 모서리에 동시에 접촉하면서 절삭되어 절삭효과가 우수하다(도 8 참조).Figure 6 shows an embodiment of a cutting ring according to the present invention. The cutting ring 10 has a ring shape in which a support shaft fitting hole 11 is formed at the center and has a constant thickness. The cutting passage 12 has a channel shape in which the front and rear surfaces are connected to each other. The channel includes a bottom face 12a and a pair of side faces 12b extending on both sides of the bottom face 12a. The plurality of cutting passages 12 are formed on the outer circumferential surface of the cutting ring 10 at equal intervals, but may not be equal intervals in other embodiments. The rice bran is cut in contact with the edge (edge) of the bottom surface 12a of the channel and the edge (edge) of the side surface 12b as it passes through the cutting passage 12. In particular, the cutting ring 10 of the present embodiment has an edge of the bottom surface 12a and the edges of both sides 12b when the grain of rice passes through the portion where the bottom surface 12a of the channel and the pair of side surfaces 12b meet. The cutting effect is excellent while simultaneously cutting in contact with (see FIG. 8).
그리고 채널 형상의 절삭 통로(12)는 바닥면(12a)은 절삭 링(10)의 중심 축선을 통과하는 평면에 수직인 면이고, 양 측면(12b)은 바닥면(12a)과 90°이상의 각도로 만나도록 구성되어 있다. 따라서 절삭 통로(12)를 통과하는 대략 럭비공 형상인 쌀알이 절삭 통로(12)의 구석에 끼이지 않게 되어 절삭 효과를 증대 시킨다. 또한, 절삭 링(10)과 스크린(150) 사이의 공간을 통과하는 쌀알이 절삭 링(10)의 외주면 모서리에 접촉하여 쌀겨가 효과적으로 절삭되도록 절삭 통로(12)와 절삭 통로(12) 사이의 링의 외주면도 바닥면(12a)과 같이 절삭 링(10)의 중심 축선을 통과하는 평면에 수직인 평면으로 형성하는 것이 바람직하다.And the channel-shaped cutting passage 12 is the bottom surface 12a is a plane perpendicular to the plane passing through the center axis of the cutting ring 10, both sides 12b are angles of 90 degrees or more with the bottom surface 12a It is configured to meet with. Therefore, the substantially rugby ball-shaped rice grains passing through the cutting passage 12 are not caught in the corners of the cutting passage 12 to increase the cutting effect. In addition, a ring between the cutting passage 12 and the cutting passage 12 so that the rice grain passing through the space between the cutting ring 10 and the screen 150 contacts the outer circumferential edge of the cutting ring 10 to effectively cut the rice bran. It is preferable that the outer circumferential surface of is formed in a plane perpendicular to the plane passing through the central axis of the cutting ring 10, like the bottom surface 12a.
또한, 지지부(13)는 절삭 링(10)의 내주면에서 지지축 끼움 구멍(11)까지 연장되고, 절삭 링(10)의 원주 방향을 따라 일정한 간격으로 복수개 구비한다. 본 실시예에서는 절삭 링(10)의 중심 축선을 향하여 내측으로 4개가 연장되어 있으나, 이에 한정되는 것은 아니다. 그리고 키홈 연결돌기(14)는 각각의 지지부(13)의 단부에 형성되며, 각각의 키홈 연결돌기(14)는 대응되는 지지축(30)에 형성된 키홈에 끼워진다. 본 실시예에서 키홈 연결 돌기(14)는 각각의 지지부(13)의 단부에 모두 형성되어 있지만, 이에 한정하는 것은 아니고 각각의 지지부(13) 중 적어도 하나의 단부에 형성될 수도 있다. 또한, 공기 통로(15)는 지지축(30)과 내주면 사이에 형성되고, 이 공간으로 본체(110)에 형성된 공기 공급 통로(118)로 유입된 공기가 통과된다.In addition, the support part 13 extends from the inner peripheral surface of the cutting ring 10 to the support shaft fitting hole 11, and is provided in plurality at regular intervals along the circumferential direction of the cutting ring 10. In this embodiment, four are extended inward toward the center axis of the cutting ring 10, but is not limited thereto. And the key groove connecting projection 14 is formed at the end of each support 13, each key groove connecting projection 14 is fitted in the key groove formed in the corresponding support shaft (30). In the present embodiment, the keyway connecting protrusions 14 are all formed at the ends of each support 13, but are not limited thereto and may be formed at at least one end of each support 13. In addition, the air passage 15 is formed between the support shaft 30 and the inner circumferential surface, and air introduced into the air supply passage 118 formed in the main body 110 passes through this space.
도 7에는 도 6에 도시된 절삭 링과 함께 절삭 링 조립체의 구성에 사용될 수 있는 간격 링의 일 실시예가 도시되어 있다. 간격 링(20)은 일정한 두께를 갖는 링 형상이고, 중심에 관통된 지지축 끼움 구멍(21)이 형성된다. 공기 통로 채널(22)은 링의 내주면과 외주면이 통하도록 링의 일 측면에 반경 방향으로 형성된 부분으로 절삭 링 조립체(180)에 조립된 경우 외부로부터 공급된 공기가 배출되는 통로로 사용된다. 지지부(23)는 지지축 끼움 구멍(21)의 내주면에 원주 방향으로 일정한 간격으로 복수 개 배치된다. 바람직하게는 간격 링(20)의 중심 축선을 향하여 내측으로 4개 연장되나 이에 한정하는 것은 아니다. 그리고 키홈 연결 돌기(24)는 각각의 지지부(23)의 단부에 형성되며, 지지축(30)에 형성된 외측 키홈(32)에 끼워진다. 본 실시예에서 키홈 연결 돌기(24)는 각각의 지지부(23)의 단부에 모두 형성되어 있지만, 이에 한정하는 것은 아니고 각각의 지지부(23) 중 적어도 하나의 단부에 형성될 수도 있다. 또한, 공기 통로(25)는 지지축(30)과 내주면 사이에 형성되고, 이 공간으로 본체(110)에 형성된 공기 공급 통로(118)로 유입된 공기가 통과된다.7 shows one embodiment of a spacing ring that can be used in the construction of a cutting ring assembly with the cutting ring shown in FIG. 6. The spacing ring 20 has a ring shape having a constant thickness, and a support shaft fitting hole 21 penetrated at the center thereof is formed. The air passage channel 22 is a portion formed radially on one side of the ring so that the inner circumferential surface and the outer circumferential surface of the ring communicate with each other, and when the air passage channel 22 is assembled to the cutting ring assembly 180, air is supplied from the outside. A plurality of support portions 23 are disposed on the inner circumferential surface of the support shaft fitting hole 21 at regular intervals in the circumferential direction. Preferably four extend inward toward the central axis of the spacing ring 20, but is not limited thereto. And the key groove connecting projection 24 is formed at the end of each support 23, it is fitted to the outer key groove 32 formed on the support shaft (30). In the present embodiment, the key groove connecting protrusions 24 are all formed at the ends of the respective support parts 23, but are not limited thereto and may be formed at at least one end of each support part 23. In addition, the air passage 25 is formed between the support shaft 30 and the inner circumferential surface, and the air introduced into the air supply passage 118 formed in the main body 110 passes through this space.
도 5를 참조하면, 보조 절삭 링(40)은 절삭 링 조립체(180)의 양 단을 마무리할 때 설치될 수 있다. 경우에 따라서 보조 절삭 링(40)이 설치되지 않고 절삭 링(30)만으로 마무리할 수 있다. 이와 같은 보조 절삭 링(40)은 일정한 두께를 갖는 링 형상이고, 중심에 관통된 지지축 끼움 구멍(41)이 형성된다. 절삭 통로(42)는 전면과 후면이 서로 연결된 채널 형상으로써, 절삭 링(10)의 절삭 통로(12)와 동일한 구조이고 이하에서는 상세한 설명은 생략한다. 또한, 공기 통로(43)는 지지축 끼움 구멍(41)의 원주 방향으로 복수개 구비한다. 따라서 본체(110)에 구비한 공기 공급 구멍(118)으로 유입된 공기는 스크류(170)의 관통 구멍(173)을 통과한 후 보조 절삭 링(40)의 공기 통로(33)를 지나 절삭 링(10)과 간격 링(20)의 공기 통로(15, 25)로 공급된다.Referring to FIG. 5, the auxiliary cutting ring 40 may be installed when finishing both ends of the cutting ring assembly 180. In some cases, the auxiliary cutting ring 40 may not be installed, and only the cutting ring 30 may be finished. The auxiliary cutting ring 40 has a ring shape having a constant thickness, and a support shaft fitting hole 41 penetrated at the center thereof is formed. The cutting passage 42 has a channel shape in which front and rear surfaces are connected to each other, and has the same structure as the cutting passage 12 of the cutting ring 10, and a detailed description thereof will be omitted below. In addition, the air passage 43 is provided in plural in the circumferential direction of the support shaft fitting hole 41. Therefore, the air introduced into the air supply hole 118 provided in the main body 110 passes through the through hole 173 of the screw 170 and then passes through the air passage 33 of the auxiliary cutting ring 40 to the cutting ring ( 10 and air passages 15 and 25 of the spacing ring 20.
또한, 몇몇 실시예에 있어서 절삭 링(10)과 절삭 링(10) 사이에 설치되는 간격 링은 일 실시예의 간격 링(20)에 형성된 공기 통로 채널(22)이 형성되지 않은 수도 있다. 이와 같이 공기 통로 채널(22)를 구비하지 않은 간격 링을 사용할 경우 에어 링(60)을 설치할 수 있다. 본 실시예의 에어 링(60)은 간격 링과 절삭 링 사이로 공기가 통하도록 틈새를 확보하기 위해 설치된다.In addition, in some embodiments the spacing ring provided between the cutting ring 10 and the cutting ring 10 may not be formed with an air passage channel 22 formed in the spacing ring 20 of one embodiment. As such, when using an interval ring not provided with the air passage channel 22, the air ring 60 may be installed. The air ring 60 of this embodiment is installed to secure a clearance for air to flow between the gap ring and the cutting ring.
에어 링(60)은, 일정한 두께를 갖는 링 형상이고 중심에 관통된 지지축 끼움 구멍(61)이 형성된다. 키홈 연결 돌기(62)는 지지축 끼움 구멍(61)의 내주면에서 중심 방향으로 복수개 연장되고, 지지축(30)의 외주면에 형성된 각각의 외측 키홈(32)에 끼워져 결합된다. 외측 돌기(63)는 링의 외주면에 외주면에 복수개 형성되고, 간격 링(20)의 지지부에 배치된다. 또한, 에어 링(60)의 외경은 간격 링(20)의 지지축 끼움 구멍(21)의 내주면보다 작은 것이 바람직하다. 따라서 에어 링(60)을 포함하는 절삭 링 조립체에서 절삭 링의 공기 통로로 공급되는 공기는 에어 링(60)에 의해서 절삭 링과 간격 링 사이에 형성되는 틈새로 배출되어, 절삭된 쌀겨를 스크린 외부로 배출시켜서 미강이 도정된 쌀알에 달라붙어 잔류하지 않도록 한다. 또한, 절삭 링 조립체에 설치된 절삭 링 및 간격 링의 마찰에 의하여 온도가 높아진 쌀알을 냉각시킨다.The air ring 60 has a ring shape having a constant thickness and a support shaft fitting hole 61 penetrated at the center thereof. The key groove connecting protrusion 62 extends in the center direction from the inner circumferential surface of the support shaft fitting hole 61, and is fitted into and coupled to the respective outer key grooves 32 formed on the outer circumferential surface of the support shaft 30. The outer protrusions 63 are formed on the outer circumferential surface of the ring on the outer circumferential surface, and are disposed on the supporting portion of the spacing ring 20. Moreover, it is preferable that the outer diameter of the air ring 60 is smaller than the inner peripheral surface of the support shaft fitting hole 21 of the space ring 20. Therefore, the air supplied to the air passage of the cutting ring in the cutting ring assembly including the air ring 60 is discharged into the gap formed between the cutting ring and the spacing ring by the air ring 60, thereby cutting the cut rice bran out of the screen. So that the rice bran does not stick to the milled rice grains and remain. In addition, the temperature of the rice grains is cooled by the friction of the cutting ring and the spacer ring installed in the cutting ring assembly.
도 3 및 도 4에 도시된 스크류(170)와 절삭 링 조립체(180)가 장착된 현미 가공 회전체(160)는 대규모 정미기에 사용된다. 이와 같이 대규모 정미기에 사용되는 절삭 링 조립체(180)는 고정축(120)에 적어도 하나 이상 설치되어 사용할 수 있음은 물론이다.3 and 4, the micromachined rotating body 160 equipped with the screw 170 and the cutting ring assembly 180 is used for a large-scale rice mill. As described above, at least one cutting ring assembly 180 used for a large scale rice cleaning machine may be installed on the fixed shaft 120.
본 실시예에서와 같이 대규모 정미기에 사용되는 현미 가공 회전체(160)의 조립순서를 설명한다.The assembly sequence of the brown rice processing rotating body 160 used for a large-scale rice milling machine as in this embodiment will be described.
먼저, 스크류(170)의 날개(172)가 호퍼(112)의 하부에 위치하도록 고정축(120)에 밀어 넣는다. 다음으로, 절삭 링 조립체(180)를 고정축(120)에 설치한다. 이때, 절삭 링 조립체(180)는 고정축(120)의 길이에 맞춰 적어도 하나 이상 설치할 수 있다.First, the blade 172 of the screw 170 is pushed into the fixed shaft 120 to be located below the hopper 112. Next, the cutting ring assembly 180 is installed on the fixed shaft 120. In this case, at least one cutting ring assembly 180 may be installed in accordance with the length of the fixed shaft 120.
다음으로, 절삭 링 조립체(180)의 조립순서에 대해 설명한다. 먼저, 보조 절삭 링(40)을 지지축(30)의 단부까지 밀어 넣는다. 지지축(30)에 절삭 링(10)을 끼우고 보조 절삭 링(30)의 단부까지 밀어 넣는다. 이때, 절삭 링(10)의 지지축 끼움 구멍(11)에 형성된 각각의 키홈 연결 돌기(15)는 지지축(30)의 외주면에 형성된 각각의 외측 키홈(32)에 끼워진 상태에서 조립된다. 이와 같이 절삭 링(10)의 키홈 연결 돌기(14)는 지지축(30)에 형성된 외측 키홈(32)을 따라 이동하기 때문에 절삭 링(10)이 회전되거나 뒤틀리지 않고 정확하게 설치될 수 있다. 또한, 절삭 링(10)의 지지부(13)는 지지축(30)의 외주면에 안정적으로 밀착된 상태에서 조립된다.Next, the assembling procedure of the cutting ring assembly 180 will be described. First, the auxiliary cutting ring 40 is pushed to the end of the support shaft 30. The cutting ring 10 is inserted into the support shaft 30 and pushed to the end of the auxiliary cutting ring 30. At this time, each key groove connecting protrusion 15 formed in the support shaft fitting hole 11 of the cutting ring 10 is assembled in a state of being fitted into each outer key groove 32 formed on the outer circumferential surface of the support shaft 30. As such, since the key groove connecting protrusion 14 of the cutting ring 10 moves along the outer key groove 32 formed in the support shaft 30, the cutting ring 10 may be installed accurately without being rotated or twisted. In addition, the support part 13 of the cutting ring 10 is assembled in a state in which it is in stable contact with the outer peripheral surface of the support shaft 30.
다음으로, 지지축(30)에 간격 링(20)을 끼우고 먼저 끼워진 절삭 링(10)까지 밀어 넣는다. 이때, 간격 링(20)의 지지축 끼움 구멍(21)에 형성된 각각의 키홈 연결 돌기(24)는 지지축(30)의 외주면에 형성된 각각의 외측 키홈(32)에 끼워진 상태에서 설치된다. 이와 같이 간격 링(20)의 키홈 연결 돌기(24)는 지지축(30)에 형성된 외측 키홈(32)을 따라 이동하기 때문에 간격 링(20)이 회전되거나 뒤틀리지 않고 정확하게 설치할 수 있다. 또한, 간격 링(20)의 지지부(23)는 지지축(30)의 외주면에 안정적으로 밀착된 상태에서 설치된다.Next, the spacer ring 20 is inserted into the support shaft 30 and pushed to the cutting ring 10 fitted first. At this time, each of the key groove connecting projections 24 formed in the support shaft fitting hole 21 of the spacing ring 20 is installed in a state of being fitted into each of the outer key grooves 32 formed on the outer circumferential surface of the support shaft 30. As such, the key groove connecting protrusion 24 of the gap ring 20 moves along the outer key groove 32 formed in the support shaft 30, so that the gap ring 20 can be installed accurately without being rotated or twisted. In addition, the support 23 of the spacing ring 20 is installed in a state in which it is in close contact with the outer peripheral surface of the support shaft 30 in a stable manner.
다음으로, 다른 절삭 링(10)을 끼워진 간격 링(20)까지 밀어 넣고, 새로운 간격 링(20)을 먼저 끼워진 절삭 링(10)까지 밀어 넣는다. 이와 같이 복수의 절삭 링(10) 사이에 복수의 간격 링(20)이 교대로 배치되도록 절삭 링(10)과 간격 링(20)을 지지축(30)에 끼워 넣는다. 그리고 복수의 절삭 링(10)과 간격 링(20)이 지지축(30)으로부터 분리되지 않도록 지지축(300)의 말단에 보조 절삭 링(40)을 조립한다.Next, the other cutting ring 10 is pushed to the fitted gap ring 20, and the new gap ring 20 is pushed to the fitted cutting ring 10 first. Thus, the cutting ring 10 and the spaced ring 20 are fitted to the support shaft 30 so that the plurality of spaced rings 20 are alternately arranged between the plurality of cutting rings 10. Then, the auxiliary cutting ring 40 is assembled at the end of the support shaft 300 such that the plurality of cutting rings 10 and the spacing ring 20 are not separated from the support shaft 30.
일 실시예의 절삭 링 조립체(180)는, 복수의 절삭 링(10)과 복수의 간격 링(20) 및 보조 절삭 링(40)을 지지축(30)에 각각 교대로 끼워져서 조립한 후 고정축(120)에 장착된다. 이와 같이 일체로 조립된 절삭 링 조립체(180)를 사용할 경우 절삭 링 조립체(180)가 손상되면 교체가 용이한 효과가 있다. 경우에 따라서 고정축(120)에 복수의 절삭 링(10)과 복수의 간격 링(20) 및 보조 절삭 링(40)을 분리되지 않도록 조립할 수도 있다. 이때, 고정축(120)은 외주면에 길이 방향으로 복수의 키홈이 형성되이 있음은 물론이다.In one embodiment, the cutting ring assembly 180 includes a plurality of cutting rings 10, a plurality of spacing rings 20, and an auxiliary cutting ring 40 alternately fitted to the support shaft 30, and then fixed shafts. 120 is mounted. In this case, when the cutting ring assembly 180 is integrally assembled, the cutting ring assembly 180 may be damaged and the replacement may be easily performed. In some cases, the plurality of cutting rings 10, the plurality of gap rings 20, and the auxiliary cutting rings 40 may be assembled to the fixed shaft 120 so as not to be separated. At this time, the fixed shaft 120 is a plurality of key grooves are formed in the longitudinal direction on the outer peripheral surface is, of course.
다음으로, 복수의 절삭 링(10)과 복수의 간격 링(20)이 순차적으로 조립된 외주면에 일정 각도로 나선형으로 경사진 복수의 유도날(50)을 설치한다. 유도날(50)을 설치하기 전에, 절삭 링 조립체(180)의 외주면에 유도날(50)을 삽입하기 위한 경사진 홈을 형성하는 것이 바람직하나, 이에 한정하는 것은 아니다. 유도날(50)은 길이가 긴 강철 부재를 사용하나, 이에 한정되는 것은 아니다. 알루미늄이나 플라스틱으로 삽입이 적당한 형태로 형성하여, 길이 방향으로 절삭 링(10)과 절삭 링(10) 사이와 간격 링(20) 상부의 공간을 막을 수 있는 것이면 어느 것이나 가능하다. 본 실시예에서는 한 쌍의 유도날(50)을 사용하였으나, 이에 한정하는 것은 아니고, 하나의 유도날을 설치하거나 두 개 이상의 유도날을 설치할 수도 있다.Next, a plurality of guide blades 50 inclined spirally at a predetermined angle are provided on an outer circumferential surface of which the plurality of cutting rings 10 and the plurality of spacing rings 20 are sequentially assembled. Before installing the guide blade 50, it is preferable to form an inclined groove for inserting the guide blade 50 in the outer peripheral surface of the cutting ring assembly 180, but is not limited thereto. The guide blade 50 uses a long steel member, but is not limited thereto. As long as the insertion is made of aluminum or plastic in a suitable form and can block the space between the cutting ring 10 and the cutting ring 10 and the gap ring 20 in the longitudinal direction, it is possible. In the present embodiment, a pair of guide blades 50 are used, but the present invention is not limited thereto, and one guide blade or two or more guide blades may be installed.
상기에서와 같이 설치된 유도날(50)은 절삭 날 조립체(180)가 회전할 때, 간격 링(20) 상부에 위치하는 쌀알이 지지축(30)의 회전 방향으로 쌀알이 이동하도록 하여 쌀알이 혼합되면서 배출구로 압송되도록 한다. 따라서 쌀알이 원활하게 이송되도록 각각의 유도날(50)의 경사 각도(b°)는 대략 15°정도가 바람직하나, 이에 한정되는 것은 아니다. 유도날(50)의 경사 각은 절삭 링 조립체(180)의 길이나 도정 정도나 수율에 따라서 유도날(50)의 경사 각도를 0°~ 45°범위 내에서 조절할 수 있다.The guide blade 50 installed as described above, when the cutting blade assembly 180 is rotated, the rice grain located above the spacing ring 20 to move the rice grain in the rotational direction of the support shaft 30, the rice grain is mixed. To be discharged to the outlet. Therefore, the inclination angle (b °) of each guide blade 50 is preferably about 15 ° so that the rice grain is smoothly transferred, but is not limited thereto. The inclination angle of the induction blade 50 may adjust the inclination angle of the induction blade 50 within the range of 0 ° to 45 ° according to the length, cutting degree, or yield of the cutting ring assembly 180.
또한, 절삭 링 조립체(180)는, 쌀알이 도정되어 이송되는 방향을 따라서 공기 배출량이 감소하거나 증가하도록 간격 링(20)의 두께나 공기 통로 채널(22)의 크기를 조절할 수 있다. 예를 들면, 간격 링(20)의 두께나 공기 통로 채널(22)의 크기를 쌀알이 이동하는 방향으로 갈수록 작게 하여 쌀알이 이송되는 방향에 따라서 공기 공급량이 줄어들도록 할 수 있다. 이와 같이 조절할 경우 도정이 진행되면서 절삭에 의해서 발생하는 쌀겨 양이 감소하므로 공기 공급량을 줄여도 냉각이나 쌀겨의 배출이 가능하여, 공기 공급량을 줄여서 에너지를 절약할 수 있게 된다.In addition, the cutting ring assembly 180 may adjust the thickness of the spacing ring 20 or the size of the air passage channel 22 to reduce or increase air emissions along the direction in which the grain of rice is inverted and conveyed. For example, the thickness of the spacing ring 20 or the size of the air passage channel 22 may be made smaller in the direction in which the grain of rice moves, so that the amount of air supplied may decrease according to the direction in which the grain of rice is conveyed. In this case, the amount of rice bran generated by cutting decreases as the cutting progresses, so cooling or discharging of rice bran is possible even if the air supply is reduced, thereby saving energy by reducing the air supply.
도 10은 본 발명에 따른 정미기의 다른 실시예를 나타내는 개략적인 단면도이고, 도 11은 도 10에 도시된 절삭 링 조립체의 다른 실시예의 사시도이며, 도 12는 도 11에 도시된 절삭 링 조립체의 분해 사시도이다.Figure 10 is a schematic cross-sectional view showing another embodiment of the rice mill according to the present invention, Figure 11 is a perspective view of another embodiment of the cutting ring assembly shown in Figure 10, Figure 12 is an exploded view of the cutting ring assembly shown in Figure 11 Perspective view.
본 발명에 따른 다른 실시예의 정미기(200)는, 도 2에 도시된 일 실시예의 정미기(100)와 비교하여 다른 실시예의 절삭 링 조립체에 중공의 실린더 형상의 구동축(220)이 설치되고, 구동축(220)의 길이 방향으로 공기 공급 구멍(미도시 됨)이 형성된 점에서 차이가 있다. 이와 같은 구조의 정미기는 소형 정미기에 사용되는 것이다.In another embodiment of the rice mill 200 according to the present invention, a hollow cylindrical drive shaft 220 is installed in the cutting ring assembly of another embodiment, compared to the rice mill 100 of the embodiment shown in FIG. There is a difference in that an air supply hole (not shown) is formed in the longitudinal direction of 220. A rice mill of such a structure is used for a small rice mill.
도 11을 참조하면, 본 발명에 따른 다른 실시예의 정미기(200)는 본체 상부에 정백실(211)을 구비한다. 호퍼(212)는 정백실(211)의 일단 상부에 설치되어 있고, 호퍼(212)를 통해 공급된 현미는 현미 가공 회전체(260)로 이송된다. 백미 배출구(213)는 정백실(211)의 타단 하부에 설치되어 있고, 현미 가공 회전체(260)에 의해 도정된 쌀알을 외부로 배출한다. 미강 배출구(214)는 현미 가공 회전체(260)의 하부에 설치되고, 현미가 백미로 도정될 때 쌀알에서 제거된 쌀겨인 미강을 외부로 배출한다.Referring to FIG. 11, the rice cleaning machine 200 according to another embodiment of the present invention includes a whitening chamber 211 on an upper portion of the main body. The hopper 212 is provided at an upper end of the whitening chamber 211, and the brown rice supplied through the hopper 212 is transferred to the brown rice processing rotating body 260. The white rice discharge port 213 is provided at the lower end of the other end of the whitening chamber 211 and discharges the rice grain which has been inverted by the brown rice processing rotary body 260 to the outside. The rice bran outlet 214 is installed at the lower portion of the brown rice processing rotating body 260, and discharges rice bran, which is rice bran removed from the grains of rice, when the brown rice is turned into white rice.
구동축(220)은 중공의 실린더 형상이고, 호퍼(212)에서 백미 배출구(213) 방향으로 경사지도록 정백실(211)의 중심에 회전 가능하게 설치된다. 구동축(220)의 중공은 현미 가공 회전체(260)에 공기를 공급하기 위한 공기 공급 구멍(218)으로 사용된다. 종동풀리(221)는 구동축(220)의 일단에 설치된다. 또한, 구동축(220)의 외주면에는 호퍼(212)를 통해 공급된 쌀알의 쌀겨를 제거하면서 백미 배출구(213) 방향으로 압착 이송하는 현미 가공 회전체(260)가 설치된다. 그리고 구동축(220)의 양단은 제1 베어링(215)과 제2 베어링(216)으로 지지되어 있음은 물론이다. 분도 조절기(217)는 정백실(211)의 타단에 설치된다. 본 발명에 따른 다른 실시예의 절삭 링 조립체(280)는, 호퍼(212)를 통해 공급된 쌀알을 백미 배출구(213) 방향으로 원활하게 이송하기 위해, 호퍼(212)에서 백미 배출구(213) 방향으로 경사지게 설치될 수 있다. 이때, 구동축(220)의 경사 각도 대략 15°정도가 바람직하나, 이에 한정되는 것은 아니다. 구동축(220)의 경사 각은 길이나 도정 정도나 수율에 따라서 경사 각도를 5°~ 30°범위 내에서 조절할 수 있다.The drive shaft 220 has a hollow cylindrical shape and is rotatably installed at the center of the whitening chamber 211 so as to be inclined in the direction of the white rice outlet 213 from the hopper 212. The hollow of the drive shaft 220 is used as the air supply hole 218 for supplying air to the micromachined rotary body 260. The driven pulley 221 is installed at one end of the drive shaft 220. In addition, the outer peripheral surface of the drive shaft 220 is provided with a brown rice processing rotating body 260 for pressing and conveying the rice bran of the rice grain supplied through the hopper 212 toward the white rice outlet 213. And both ends of the drive shaft 220 is of course supported by the first bearing 215 and the second bearing (216). The minute adjuster 217 is installed at the other end of the whitening chamber 211. The cutting ring assembly 280 of another embodiment according to the present invention, in order to smoothly transfer the rice grains supplied through the hopper 212 toward the white rice outlet 213, from the hopper 212 toward the white rice outlet 213. Can be installed obliquely. At this time, the inclination angle of the driving shaft 220 is preferably about 15 °, but is not limited thereto. The inclination angle of the drive shaft 220 may be adjusted within the range of 5 ° to 30 ° according to the length, degree of precision, or yield.
또한, 구동모터는 본체 하부에 장착되고, 구동모터의 축에 구동풀리가 설치된다. 벨트는 구동축(220)의 종동풀리(221)와 구동모터의 구동풀리에 각각 연결되어 있다. 스크린(250)은 현미 가공 회전체(260)의 외측에 간격을 두고 설치되며, 도정시 제거된 쌀겨를 외부로 배출한다. 현미 가공 회전체(260)는 스크류(270)와 절삭 링 조립체(280)를 포함한다.In addition, the drive motor is mounted under the main body, the drive pulley is installed on the shaft of the drive motor. The belt is connected to the driven pulley 221 of the drive shaft 220 and the drive pulley of the drive motor, respectively. The screen 250 is installed at intervals on the outside of the brown rice processing rotating body 260, and discharges the rice bran removed during the milling to the outside. The microfabricated rotating body 260 includes a screw 270 and a cutting ring assembly 280.
도 11을 참조하면, 다른 실시예의 절삭 링 조립체(280)는, 지지축(90)에 교대로 끼워져서 조립된 복수의 절삭 링(70) 및 복수의 간격 링(80)과, 절삭 링(70) 및 간격 링(80)을 지지축(90)에 고정하기 위한 체결부재(97)와, 복수의 절삭 링 조립체의 외주면에 경사지도록 형성된 홈에 결합된 두 개의 유도날(50)을 포함한다.Referring to FIG. 11, the cutting ring assembly 280 of another embodiment includes a plurality of cutting rings 70 and a plurality of spacing rings 80 assembled by being alternately fitted to the support shaft 90, and a cutting ring 70. And a fastening member 97 for fixing the spacer ring 80 to the support shaft 90, and two guide blades 50 coupled to the grooves formed to be inclined to the outer circumferential surfaces of the plurality of cutting ring assemblies.
본 실시예에서는 한 쌍의 유도날(50)을 사용하였으나, 이에 한정되는 것은 아니고, 하나의 유도날을 설치하거나 두개 이상의 유도날을 설치할 수도 있다. 유도날(50)은 절삭 링 조립체(280)가 회전할 때, 간격 링(80) 상부에 위치하는 쌀알이 지지축(90)의 회전 방향으로 쌀알이 이동하도록 하여 쌀알이 혼합되면서 배출구로 압송되도록 한다. 따라서 쌀알이 원활하게 압송되도록 각각의 유도날(50)의 경사 각도는 대략 15°정도가 바람직하나, 이에 한정되는 것은 아니다. 유도날(50)의 경사 각은 정미기용 절삭 링 조립체(280)의 길이나 도정 정도나 수율에 따라서 유도날(50)의 경사 각도를 0°~ 45°범위 내에서 조절할 수 있다.In the present embodiment, a pair of guide blades 50 are used, but the present invention is not limited thereto, and one guide blade or two or more guide blades may be installed. When the cutting ring assembly 280 rotates, the guide blade 50 allows the rice grains located above the spacing ring 80 to move the rice grains in the rotational direction of the support shaft 90 so that the rice grains are mixed and fed to the outlet. do. Therefore, the inclination angle of each guide blade 50 is preferably about 15 ° so that the rice grains are smoothly conveyed, but is not limited thereto. The inclination angle of the induction blade 50 may adjust the inclination angle of the induction blade 50 within the range of 0 ° to 45 ° according to the length, degree of cutting, or yield of the cutting ring assembly 280 for the rice mill.
도 12를 참조하면, 지지축(90)은, 중공(91)의 실린더 형상이고 외주면과 내주면에 각각 길이 방향으로 키홈(92, 93)이 형성되어 있다. 그 중 지지축(90)의 외주면에 형성된 키홈을 외측 키홈(92)이라 하고, 외측 키홈(92)에 복수의 절삭 링(70)의 키홈 결합 돌기(74)와 간격 링(80)의 키홈 결합 돌기(84)가 순차로 끼워져 결합된다. 본 발명에 따른 외측 키홈(92)은 90°등 간격으로 4개 형성되어 있으나 이에 한정하는 것은 아니다. 그리고 지지축(90)의 내주면에 형성된 키홈을 내측 키홈(93)이라 하고, 지지축(90) 중공으로 삽입된 구동축(220)의 동력이 전달되도록 결합하기 위한 키가 삽입된다. 또한, 지지축(90)에는 공기 공급 구멍(94)이 형성될 수 있다. 공기 공급 구멍(94)은 중공(91)과 연통되도록 지지축(90)의 길이 방향을 따라서 하나 이상 형성된다. 따라서 중공(91)으로 공급된 외부의 공기는 공기 공급 구멍(94)과 간격 링(80)의 절결부(82)를 통하여 절삭 링 조립체(280)의 반경 방향 외부로 배출된다. Referring to FIG. 12, the support shaft 90 is a cylindrical shape of the hollow 91, and the key grooves 92 and 93 are formed in the longitudinal direction in the outer peripheral surface and the inner peripheral surface, respectively. The key groove formed on the outer circumferential surface of the support shaft 90 is called the outer key groove 92, and the key groove engaging protrusion 74 of the plurality of cutting rings 70 and the key groove of the spacer ring 80 are connected to the outer key groove 92. The protrusions 84 are sequentially fitted and engaged. Four outer keyways 92 according to the present invention are formed at intervals such as 90 °, but are not limited thereto. The key groove formed on the inner circumferential surface of the support shaft 90 is referred to as an inner key groove 93, and a key for coupling so that the power of the drive shaft 220 inserted into the support shaft 90 is transmitted is inserted. In addition, an air supply hole 94 may be formed in the support shaft 90. At least one air supply hole 94 is formed along the longitudinal direction of the support shaft 90 so as to communicate with the hollow 91. Therefore, the outside air supplied to the hollow 91 is discharged radially outward of the cutting ring assembly 280 through the air supply hole 94 and the cutout 82 of the spacing ring 80.
또한, 복수의 간격 링(80)은 조립시에 절결부(82)가 원주 방향으로 일정한 각도씩 어끗나도록 배치시켜 원주 방향으로 골고루 공기가 배출되도록 조립되는 것이 바람직한다. 지지축(90)의 일단에는 삽입된 절삭 링(70)과 간격 링(80)이 빠지지 않도록 지지하기 위한 플랜지(95)를 구비하고, 타단에는 외주면에 나사산(96)이 형성되어 있다. 체결부재(97)는 내주면에 나사산(98)이 형성되어 있고, 지지축(90)의 타단으로 교대로 삽입된 복수의 절삭 링과 간격 링이 빠지지 않도록 나사산(96)과 체결된다. 몇몇 실시예에서, 지지축(90)의 양단에 나사산이 형성되고, 체결부재(97)를 각각의 양단에 나사결합할 수도 있다.In addition, the plurality of spacing rings 80 are preferably assembled so that the cutouts 82 are cleaned at regular angles in the circumferential direction at the time of assembly so that air is evenly discharged in the circumferential direction. One end of the support shaft 90 is provided with a flange 95 for supporting the inserted cutting ring 70 and the spacing ring 80 so as not to fall out, and the other end is formed with a thread 96 on an outer circumferential surface thereof. The fastening member 97 has a thread 98 formed on the inner circumferential surface thereof, and is fastened with the thread 96 so that a plurality of cutting rings and gap rings alternately inserted into the other end of the support shaft 90 do not fall out. In some embodiments, threads are formed at both ends of the support shaft 90 and the fastening member 97 may be screwed at each end.
도 14는 도 12에 도시된 간격 링의 다른 실시예의 정면도이다. 도 14를 참조하면 본 발명의 다른 실시예의 절삭 링(70)은, 도 6에 도시된 일 실시예의 절삭 링(10)과 비교하여 복수의 지지부(73)가 중심을 향하여 짧게 연장되고, 지지축(90)의 외주면과 절삭 링(70)의 내주면 사이의 좁은 공간의 공기 통로(75)를 확보한 점에서 차이가 있다.14 is a front view of another embodiment of the spacing ring shown in FIG. 12. Referring to FIG. 14, the cutting ring 70 of another embodiment of the present invention has a plurality of support parts 73 extending shorter toward the center than the cutting ring 10 of the embodiment shown in FIG. There is a difference in securing an air passage 75 in a narrow space between the outer circumferential surface of 90 and the inner circumferential surface of cutting ring 70.
다른 실시예의 절삭 링(70)은 일정한 두께를 갖는 링 형상이고, 중심에 관통된 지지축 끼움 구멍(71)이 형성된다. 절삭 통로(72)는 전면과 후면이 서로 연결된 채널 형상이다. 채널은 바닥면(72a)과 바닥면(72a)의 양측에 연장된 한 쌍의 측면(72b)을 포함한다. 절삭 통로(72)는 절삭 링(70)의 외주면에 등 간격으로 복수 개가 형성되어 있으나, 다른 실시예에 있어서 등 간격이 아닐 수도 있다. 쌀알은 절삭 통로(72)를 통과할 때 채널의 바닥면(72a)의 에지(모서리), 측면(72b)의 에지(모서리)와 접촉하여 쌀겨가 절삭된다. 특히, 본 실시예의 절삭 링(70)은 쌀알이 채널의 바닥면(72a)과 한 쌍의 측면(72b)이 만나는 부분을 통과할 때 바닥면(72a)의 모서리와 양 측면(72b)의 모서리에 동시에 접촉하면서 절삭되어 절삭효과가 우수하다(도 15 참조).The cutting ring 70 of another embodiment has a ring shape having a constant thickness, and a support shaft fitting hole 71 is formed through the center thereof. The cutting passage 72 is a channel shape in which the front and rear surfaces are connected to each other. The channel includes a bottom surface 72a and a pair of side surfaces 72b extending on both sides of the bottom surface 72a. The plurality of cutting passages 72 are formed on the outer circumferential surface of the cutting ring 70 at equal intervals, but may not be equal intervals in other embodiments. The rice bran is cut in contact with the edge (edge) of the bottom surface 72a of the channel and the edge (edge) of the side surface 72b when passing through the cutting passage 72. In particular, the cutting ring 70 of the present embodiment has an edge of the bottom surface 72a and an edge of both sides 72b when the grain of rice passes through the portion where the bottom surface 72a of the channel and the pair of side surfaces 72b meet. It is cut while contacting at the same time, and the cutting effect is excellent (see FIG. 15).
그리고 채널 형상의 절삭 통로(72)는 바닥면(72a)은 절삭 링(70)의 중심 축선을 통과하는 평면에 수직인 면이고, 양 측면(72b)은 바닥면(72a)과 90°이상의 각도로 만나도록 구성되어 있다. 따라서 절삭 통로(72)를 통과하는 대략 럭비공 형상인 쌀알이 절삭 통로(72)의 구석에 끼이지 않게 되어 절삭 효과를 증대 시킨다. 또한, 절삭 링(70)과 스크린(250) 사이의 공간을 통과하는 쌀알이 절삭 링(70)의 외주면 모서리에 접촉하여 쌀겨가 효과적으로 절삭되도록 절삭 통로(72)와 절삭 통로(72) 사이의 링의 외주면도 바닥면(72a)과 같이 절삭 링(70)의 중심 축선을 통과하는 평면에 수직인 평면으로 형성하는 것이 바람직하다.And the channel-shaped cutting passage 72 is the bottom surface 72a is a plane perpendicular to the plane passing through the center axis of the cutting ring 70, both sides 72b are at least 90 degrees to the bottom surface 72a. It is configured to meet with. Therefore, the rugby ball-shaped rice grains passing through the cutting passage 72 are not caught in the corners of the cutting passage 72 to increase the cutting effect. In addition, a ring between the cutting passage 72 and the cutting passage 72 so that rice grains passing through the space between the cutting ring 70 and the screen 250 contact the edges of the outer circumferential surface of the cutting ring 70 to effectively cut the rice bran. The outer circumferential surface of the surface is preferably formed in a plane perpendicular to the plane passing through the central axis of the cutting ring 70, like the bottom surface 72a.
또한, 지지부(73)는 절삭 링(70)의 내주면에서 지지축 끼움 구멍(71)까지 짧게 연장되고, 절삭 링(70)의 원주 방향을 따라 일정한 간격으로 복수개 구비한다. 본 실시예에서는 절삭 링(70)의 중심 축선을 향하여 내측으로 4개가 연장되어 있으나, 이에 한정되는 것은 아니다. 그리고 키홈 연결돌기(74)는 각각의 지지부(73)의 단부에는 형성되며, 각각의 키홈 연결돌기(74)는 대응되는 지지축(90)에 형성된 키홈에 끼워진다. 본 실시예에서 키홈 연결 돌기(74)는 각각의 지지부(73)의 단부에 모두 형성되어 있지만, 이에 한정하는 것은 아니고 각각의 지지부(73) 중 적어도 하나의 단부에 형성될 수도 있다.In addition, the support portion 73 extends shortly from the inner circumferential surface of the cutting ring 70 to the support shaft fitting hole 71, and is provided in plurality at regular intervals along the circumferential direction of the cutting ring 70. In this embodiment, four are extended inward toward the center axis of the cutting ring 70, but is not limited thereto. And the key groove connecting projection 74 is formed at the end of each support portion 73, each key groove connecting projection 74 is fitted in the key groove formed on the corresponding support shaft (90). In the present embodiment, the key groove connecting protrusion 74 is formed at both ends of each support part 73, but is not limited thereto and may be formed at at least one end of each support part 73.
도 15는 도 10의 B-B선 단면도로써 도 11에 도시된 다른 실시예의 절삭 링 조립체에서 쌀알이 절삭되는 상태를 나타내는 설명도이다. 본 실시예에 따른 간격 링(80)은, 도 7에 도시된 일 실시예의 간격 링(20)과 비교하여 복수의 지지부(23)가 중심을 향하여 짧게 연장되어 공기 통로(85)와, 공기 통로를 확보하기 위하여 내주면과 외주면이 개방된 절결부(82)를 확보한 점에서 차이가 있다.FIG. 15 is a cross-sectional view taken along line B-B of FIG. 10 and is an explanatory view showing a state in which the grain of rice is cut in the cutting ring assembly of another embodiment shown in FIG. The spacing ring 80 according to the present embodiment has a plurality of support portions 23 extending shorter toward the center than the spacing ring 20 of the embodiment shown in FIG. There is a difference in securing the cutout portion 82 in which the inner circumferential surface and the outer circumferential surface are opened to secure the.
간격 링(80)은 지지축 끼움 구멍(81)이 중심에 형성되고 일정한 두께를 갖는 링 형상이다. 절결부(82)는 링의 내주면과 외주면이 통하도록 개방된 부분으로 절삭 링 조립체(280)에 조립된 경우 외부로부터 공급된 공기가 배출되는 통로로 사용된다. 지지부(83)는 지지축 끼움 구멍(81)의 내주면에 원주 방향으로 일정한 간격으로 복수개 배치된다. 바람직하게는 간격 링(80)의 중심 축선을 향하여 내측으로 4개 연장되나 이에 한정하는 것은 아니다. 또한 지지축(90)에 형성된 외측 키홈(92)에 끼워지기 위한 키홈 연결 돌기(84)가 각각의 지지부(83)의 단부에 형성되어 있으나, 지지부(83) 중 어느 하나의 단부에만 형성될 수도 있다.The spacing ring 80 is a ring shape having a support shaft fitting hole 81 formed in the center and having a constant thickness. The cutout 82 is a portion open to allow the inner circumferential surface and the outer circumferential surface of the ring to communicate with the cutting ring assembly 280 and is used as a passage through which air supplied from the outside is discharged. A plurality of support portions 83 are disposed on the inner circumferential surface of the support shaft fitting holes 81 at regular intervals in the circumferential direction. Preferably four extend inward toward the central axis of the spacing ring 80, but is not limited thereto. In addition, the key groove connecting protrusion 84 for fitting to the outer key groove 92 formed on the support shaft 90 is formed at the end of each support portion 83, but may be formed only at one end of the support portion 83. have.
앞에서 설명되고 도면에 도시된 본 발명의 실시예들은, 본 발명의 기술적 사상을 한정하는 것으로 해석되어서는 안 된다. 본 발명의 보호범위는 청구범위에 기재된 사항에 의하여만 제한되고, 본 발명의 기술분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상을 다양한 형태로 개량 변경하는 것이 가능하다. 따라서 이러한 개량 및 변경은 통상의 지식을 가진 자에게 자명한 것인 한 본 발명의 보호범위에 속하게 될 것이다.Embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.
Claims (15)
- 일단에 쌀알이 공급되는 호퍼를 구비하고 타단에 쌀알이 배출되는 배출구를 구비한 본체와,A main body having a hopper to which rice grains are supplied at one end and an outlet for discharging rice grains at the other end thereof;상기 호퍼에서 상기 배출구 방향으로 경사지도록 상기 본체에 회전 가능하게 설치된 구동축과,A drive shaft rotatably installed on the main body so as to be inclined toward the outlet from the hopper;상기 구동축에 장착되고 상기 호퍼를 통해 공급된 쌀알의 쌀겨를 제거하면서 상기 배출구 방향으로 압착 이송하는 현미 가공 회전체와,A brown rice processing rotary body mounted on the drive shaft and pressed and transported in the direction of the outlet while removing rice bran of the rice grain supplied through the hopper;상기 현미 가공 회전체의 외측에 간격을 두고 설치되며 제거된 쌀겨만을 분리하는 스크린과,A screen for separating only the rice bran removed and installed at intervals outside the brown rice processing rotating body,상기 구동축에 회전력을 전달하는 구동모터를 포함하는 정미기.Rice cleaning machine comprising a drive motor for transmitting a rotational force to the drive shaft.
- 제1항에 있어서,The method of claim 1,상기 본체의 말단에 상기 현미 가공 회전체 방향으로 공기를 공급하는 복수의 공기 공급 구멍이 형성된 정미기.A rice cleaning machine having a plurality of air supply holes for supplying air in the direction of the brown rice processing rotating body at the end of the main body.
- 제1항에 있어서,The method of claim 1,상기 현미 가공 회전체는,The brown rice processing rotating body,상기 구동축에 장착되기 위하여 중공의 실린더 형상이고, 외주면에 나선형으로 날개가 설치되고 내주면에서 원주 방향으로 복수의 관통 구멍이 형성된 스크류와,A screw having a hollow cylindrical shape to be mounted on the drive shaft, the blade being spirally installed on the outer circumferential surface, and having a plurality of through holes formed in the circumferential direction on the inner circumferential surface;상기 스크류와 이웃하게 설치되도록 중공의 실린더 형상이고, 내주면과 외주면에 길이 방향으로 적어도 하나의 키홈이 각각 형성된 지지축과,A support shaft having a hollow cylindrical shape so as to be installed adjacent to the screw, and having at least one key groove formed in a longitudinal direction on an inner circumferential surface and an outer circumferential surface thereof,일정한 두께의 링 형상이고, 외주면에 쌀알이 통과되면서 쌀겨가 절삭되도록 링의 양 측면을 연결하도록 형성된 복수의 절삭 통로를 구비하고, 내주면에 형성된 키홈 연결 돌기가 상기 지지축의 외주면에 형성된 키홈에 끼워져서 결합된 복수의 절삭 링과,Ring shape of a certain thickness, having a plurality of cutting passages formed to connect both sides of the ring so that the rice bran is cut as the rice grains pass through the outer peripheral surface, the key groove connecting projection formed on the inner peripheral surface is fitted into the key groove formed on the outer peripheral surface of the support shaft A plurality of combined cutting rings,일정한 두께의 링 형상이고, 상기 복수의 절삭 링 사이에 배치되고, 내주면에 형성된 키홈 연결 돌기가 상기 지지축의 외주면에 형성된 키홈에 끼워져서 결합된 복수의 간격 링을 포함하고,A ring shape having a constant thickness and disposed between the plurality of cutting rings, the key groove connecting protrusion formed on an inner circumferential surface of the ring including a plurality of spacing rings coupled to the key groove formed on the outer circumferential surface of the support shaft;상기 절삭 통로는 링의 양 측면으로 연장되는 채널 형상이고,The cutting passage has a channel shape extending to both sides of the ring,상기 채널은 바닥면과 상기 바닥면의 양측에서 연장된 한 쌍의 측면을 포함하는 정미기.And the channel includes a bottom surface and a pair of sides extending from both sides of the bottom surface.
- 제3항에 있어서,The method of claim 3,상기 바닥면은 상기 절삭 링의 중심 축선을 통과하는 평면에 수직인 평면이고,The bottom surface is a plane perpendicular to the plane passing through the central axis of the cutting ring,상기 양 측면은 상기 바닥면과 90°이상의 각도로 만나도록 구성된 정미기.Both sides are configured to meet with the bottom surface at an angle of more than 90 °.
- 제4항에 있어서,The method of claim 4, wherein상기 각각의 이웃하는 절삭 통로 사이의 외주면은 상기 절삭 링의 중심 축선을 통과하는 평면에 수직인 평면으로 형성된 정미기.An outer circumferential surface between each neighboring cutting passage is formed in a plane perpendicular to a plane passing through a central axis of the cutting ring.
- 제3항 내지 제5항 중 어느 한 항에 있어서,The method according to any one of claims 3 to 5,상기 절삭 링과 상기 간격 링은, 상기 지지축과 내주면 사이에 공기 통로를 확보하도록 링을 지지하고, 내주면에서 원주 방향으로 일정한 간격으로 배치되고, 중심 축선을 향하여 내측으로 연장된 복수의 지지부와,The cutting ring and the spacing ring support a ring so as to secure an air passage between the support shaft and the inner circumferential surface, and are disposed at regular intervals in the circumferential direction from the inner circumferential surface, and a plurality of support portions extending inwardly toward the center axis line;상기 복수의 지지부 중 적어도 하나의 단부에 형성된 상기 키홈 연결 돌기를 포함하고,The key groove connecting projection formed on at least one end of the plurality of support,상기 본체의 공기 공급 구멍을 통해 유입된 공기는 상기 공기 통로로 공급되는 정미기.The rice mill introduced through the air supply hole of the main body is supplied to the air passage.
- 제6항에 있어서,The method of claim 6,상기 복수의 절삭 링 중 적어도 하나의 최외측 단부에 설치되기 위하여 일정한 두께의 링 형상이고, 외주면에 쌀알이 통과되면서 쌀겨가 절삭되도록 링의 양 측면을 연결하도록 형성된 복수의 절삭 통로를 구비하고, 상기 절삭 링의 공기 통로와 연통되도록 공기 통로가 형성된 보조 절삭 링을 더 포함하는 정미기.In order to be installed at the outermost end of the at least one of the plurality of cutting ring is a ring shape of a constant thickness, and has a plurality of cutting passages formed to connect both sides of the ring so that the rice bran is cut while passing through the outer circumferential surface, And a secondary cutting ring in which the air passage is formed to communicate with the air passage of the cutting ring.
- 제6항에 있어서,The method of claim 6,상기 간격 링은 링의 일 측면에 외주면과 내주면이 연통하는 공기 통로를 확보하기 위하여 링의 일 측면에 반경 방향으로 형성된 공기 통로 채널을 포함하는 정미기.And the spacing ring includes an air passage channel formed radially on one side of the ring to secure an air passage in which the outer and inner circumferential surfaces communicate on one side of the ring.
- 제6항에 있어서,The method of claim 6,상기 간격 링은 외주면과 내주면이 연통하는 공기 통로를 확보하기 위하여 링의 내주면과 외주면이 개방된 절결부를 포함하는 정미기.The spacing ring comprises a cutout in which the inner circumferential surface and the outer circumferential surface of the ring are open so as to secure an air passage in which the outer and inner circumferential surfaces communicate.
- 제6항에 있어서,The method of claim 6,일정한 두께의 링 형상이고,It is ring shape of constant thickness,상기 절삭 링과 간격 링 사이에 배치되고, 외경이 상기 간격 링의 내주면 보다 작고, 내주면에 형성된 키홈 연결 돌기가 상기 지지축의 외주면에 형성된 키홈에 끼워져서 결합된 복수의 에어 링을 포함하는 정미기.And a plurality of air rings disposed between the cutting ring and the spacing ring, the outer diameter of which is smaller than an inner circumferential surface of the spacing ring, and in which a keyway connecting protrusion formed on the inner circumferential surface is inserted into and coupled to the key groove formed on the outer circumferential surface of the support shaft.
- 제1항에 있어서,The method of claim 1,상기 구동축의 경사 각도가 5°내지 30° 범위인 정미기.A rice mill having an inclination angle of the drive shaft in a range of 5 ° to 30 °.
- 제3항 내지 제5항 중 어느 한 항에 있어서,The method according to any one of claims 3 to 5,상기 복수의 절삭 링의 외주면에 상기 지지축의 길이 방향을 따라서 일정 각도로 나선형으로 경사지도록 삽입 고정된 적어도 하나의 유도날을 더 포함하는 정미기.And at least one guide blade inserted and fixed to an outer circumferential surface of the plurality of cutting rings to be helically inclined at a predetermined angle along the longitudinal direction of the support shaft.
- 제12항에 있어서,The method of claim 12,상기 유도날의 경사 각도가 0°내지 45° 범위인 정미기.A rice mill having an inclination angle of the guide blade in a range of 0 ° to 45 °.
- 제3항에 있어서,The method of claim 3,상기 절삭 링과 상기 간격 링 사이로 공기를 배출시키기 위한 틈새가 형성된 정미기.A rice mill having a gap for discharging air between the cutting ring and the spacing ring.
- 제3항에 있어서,The method of claim 3,상기 구동축은, 중공의 실린더 형상이고 길이 방향을 따라서 적어도 하나 이상의 공기 공급 구멍이 형성되어 있고,The drive shaft is a hollow cylindrical shape and at least one air supply hole is formed along the longitudinal direction,상기 지지축은 상기 구동축의 공기 공급 구멍과 연통되도록 대응되는 위치에 적어도 하나 이상의 공기 공급 구멍이 형성된 정미기.And the support shaft has at least one air supply hole formed at a position corresponding to the air supply hole of the drive shaft.
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CN106622440A (en) * | 2017-02-20 | 2017-05-10 | 福州天兵环保科技有限公司 | Improved germ remaining rice husking machine huller blade set |
CN108525729A (en) * | 2018-04-10 | 2018-09-14 | 湖南文理学院 | A kind of sand roller husk rice rice bran separation screening equipment |
CN112844529A (en) * | 2020-12-29 | 2021-05-28 | 福建泉州市金穗米业有限公司 | Rice processing hulling and polishing machine with function of controlling rice conveying amount and polishing method thereof |
CN112892638A (en) * | 2021-01-18 | 2021-06-04 | 林艳烽 | Splash-proof sand roller rice mill for grain processing |
JP2021176625A (en) * | 2020-05-04 | 2021-11-11 | セノンテック カンパニー リミテッド | Cutting tool of cutting type rice mill fitted and joined with ceramic cutting teeth |
CN114761133A (en) * | 2020-05-04 | 2022-07-15 | 森王技术有限公司 | Metal net with rice milling function and rice polisher comprising same |
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CN107519970B (en) * | 2017-09-27 | 2019-07-16 | 安徽省中日农业环保科技有限公司 | A kind of two-stage abrasive type rice whitening machine |
KR101967680B1 (en) * | 2018-12-31 | 2019-04-11 | 홍영표 | Rice whitening apparatus a protractor controller |
KR102452444B1 (en) * | 2022-05-18 | 2022-10-07 | 주식회사 세농테크 | Cutting rice milling machine |
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KR101483762B1 (en) | 2015-01-16 |
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