TW201800151A - Grinding-type horizontal rice mill - Google Patents

Abstract

A grinding-type horizontal rice mill that can ensure good flowability of the rice grains and improve milling efficiency even when the supply of rice grains is increased and the degree of fullness of the polishing chamber is increased, wherein grooves for agitation that extend in the axial direction are formed on the circular external peripheral surface of the grinding roll, a plurality of blow holes are formed in each of these grooves, and air is blown from the blow holes while the polishing roll is rotationally driven, thereby polishing the rice grains in the polishing chamber.

Description

Grinding horizontal rice mill

The present invention relates to a grinding-type horizontal rice polishing machine for polishing rice grains by using a grinding drum.

Conventionally, there is known a polishing-type horizontal rice mill, which uses a grinding drum having an abrasive grain layer formed on the outer peripheral surface to refine the rice grains (see Patent Documents 1 and 2).

FIG. 8 shows a polishing-type horizontal rice mill described in Patent Document 1. FIG. Patent Document 1 describes that a polished rice grinder 1 has a horizontally grindable grinding rotor 18 inside the rotor, and a porous-walled bran-refining white cylinder 19 is provided around the grinding rotor 18, and the grinding rotor 18 and the porous wall are removed. A whitening chamber 20 is formed between the white rice bran cylinders 19, and a baffle 23 is provided on the rice grain discharge port 21 side of the whitening chamber 20.

According to the rice polishing machine described in Patent Document 1, the rice is polished by entering the rice grains in the whitening chamber 20 and contacting the rotating grinding rotor 18 to gradually grind the surface, and the rice bran is debranched from the porous wall. The holes of the fine white tube 19 are eliminated, and the baffle 23 is pushed open by the fine white rice grains, and is discharged from the rice grain discharge port 21 to the outside.

However, in the polished rice grinder described in Patent Document 1, if the supply of rice grains is increased in order to improve the efficiency of polished rice, and the filling degree of the rice grains in the refined white room is increased, problems such as a decrease in fluidity of the rice grains and clogging may occur.

FIG. 9 shows a polishing-type horizontal rice mill described in Patent Document 2. The grain rolling machine described in Patent Document 2 is composed of an emery drum 14 which can be arbitrarily rotated in a wire net 6, and a gap between the wire net 6 and the emery drum 14 becomes a fine white chamber 15. A pressing cover 27 biased toward the fine white chamber 15 by a biasing force by a weight 28 provided near the discharge port on one end side of the fine white chamber 15 is provided on the inner surface of the wire net 6 and within the fine white chamber 15. Multiple blocking claws 29.

According to the rice grinder described in Patent Document 2, the polished rice is sent to the polished rice in the whitening chamber 15 and the bran layer is removed by the corundum roller 14 to be polished white before being transported to the discharge port side. Function, the rice grains that become polished white resist the pressure cover 27 and are discharged outside the discharge port 26.

In addition, according to the grain rolling machine described in the aforementioned Patent Document 2, by changing the angle of the blocking claw 29 provided in the whitening chamber 15 and changing the resistance to the rice grains, uneven grinding can be prevented and the whitening ability can be performed ( Fine whiteness) adjustment.

However, in the rice grinder described in the above Patent Document 2, if the supply of rice grains is increased in order to improve the efficiency of polished rice, and the filling degree of the rice grains in the refined white room is increased, problems such as a decrease in the fluidity of the rice grains and blockages may also occur. . [Habitual technical literature] [patent literature]

Patent Document 1: Japanese Patent Publication No. 2-18138 Patent Document 2: Japanese Patent Publication No. 62-114633

[Problems to be Solved by the Present Invention] Therefore, an object of the present invention is to provide a grinding-type horizontal rice mill, which can ensure the rice grains even when the supply of rice grains is increased and the filling degree of rice grains in the whitening room is improved Mobility to improve polished rice efficiency. [Technical means to solve the problem]

In order to achieve the above object, it is a polishing type horizontal rice polishing machine according to an embodiment of the present invention, which has a fine white cylinder composed of a porous wall, and a grinding roller rotatably arranged in the fine white cylinder. A whitening chamber is formed between the whitening cylinder and the grinding drum. Rice grains supplied from one end side of the whitening chamber are whitened in the whitening chamber, and the whitened rice grains are discharged from the other end side of the whitening chamber, which are characterized by: A circular outer circumferential surface of the grinding drum with a cross section perpendicular to the axial direction forms a stirring groove extending in the axial direction, and a plurality of air jet holes are formed in the groove, while the grinding drum is rotationally driven from the air jet Air is blown through the holes to perform fine whitening in the fine whitening chamber.

In the grinding-type horizontal rice mill of this embodiment, the grinding drum has a circular outer peripheral surface, and a groove for agitating extending in the axial direction is formed on the outer peripheral surface of the grinding drum, and a plurality of air jets are formed in the groove. The hole can drive the grinding roller while blowing air from the air-jet hole to perform fine whitening in the fine white room, so together with the rice grain stirring effect produced by the stirring groove and the rice grain stirring effect produced by the air, And can greatly improve the mobility of rice grains in the whitening room.

The grinding type horizontal rice polishing machine according to another embodiment of the present invention is preferably provided with a discharge port closed by a baffle for giving a predetermined biasing force to the other end side of the refined white room, so that the refined white Rice grains are pushed out of the baffle plate and discharged from the discharge port provided on the other end side of the fine white room.

Therefore, according to the grinding-type horizontal rice mill according to this embodiment, even if the supply of rice grains is increased and the filling degree of rice grains in the whitening room is increased, the fluidity of rice grains can be ensured and the efficiency of polished rice can be improved.

In the grinding type horizontal rice mill of another embodiment of the present invention, it is preferable that the air-jet hole has an opening for blowing air in the groove toward the rear of the grinding drum in the direction of rotation.

If the grinding-type horizontal rice mill of this embodiment has an opening for blowing air in the groove toward the rear of the grinding drum in the rotation direction, the rice grains can be stirred by the air, and The rice bran produced in the whitening chamber is effectively discharged from the porous wall of the whitening tube.

In the polishing type horizontal rice mill of another embodiment of the present invention, it is preferable that the air jet hole has an opening for blowing air in the groove toward the front of the rotation direction of the grinding drum.

In the grinding type horizontal rice mill of this embodiment, if the air-jet hole has an opening for blowing air in the groove toward the front of the rotation direction of the grinding drum, the rice grains can be effectively stirred by the air, and Rice bran produced in the whitening chamber is discharged from the porous wall of the whitening cylinder.

In the polishing-type horizontal rice polishing machine according to another embodiment of the present invention, it is preferable that the air jet hole has an opening for blowing air in the groove toward the one end side of the whitening room.

In the polishing type horizontal rice mill of this embodiment, if the air-jet hole is provided with an opening for blowing air in the groove toward the one end side of the whitening room, the rice grains can be effectively stirred by the air.

In the polishing type horizontal rice mill of another embodiment of the present invention, it is preferable that the air-jet hole has an opening for blowing air in the groove toward the other end side of the white room.

The grinding type horizontal rice mill of this embodiment, if the air-jet hole has an opening for blowing air in the groove toward the other end side of the whitening chamber, the rice grains can be stirred by the air, and the rice grains can be improved. Flowability in the direction of conveyance.

In the polishing-type horizontal rice mill of another embodiment of the present invention, it is preferable that the groove is formed by a gently inclined surface on the front side in the rotation direction of the grinding drum and a steep inclined surface on the rear side.

In the grinding type horizontal rice mill of this embodiment, if the groove is formed, the front side of the grinding drum in the rotation direction is formed by a gently inclined surface, and the rear side is formed by a steep inclined surface, and the rice grains flowing into the groove from the gently inclined surface. By forcibly eliminating the steep slope, rice grains can be stirred more effectively.

In a polishing type horizontal rice mill according to another embodiment of the present invention, it is preferable that the polishing drum has an outer peripheral surface on which a super-hard abrasive grain layer is formed.

In the polishing-type horizontal rice mill of the present invention, if the grinding drum is provided with an outer peripheral surface on which a super-hard abrasive grain layer is formed, the grinding ability of the grinding drum is improved, and thus it is effective in improving the efficiency of polished rice.

The polishing type horizontal rice mill of another embodiment of the present invention is preferably provided with a blocking member that provides resistance to the rice grains moving in the white rice chamber on the inner surface of the white rice cylinder.

In the polishing type horizontal rice mill of this embodiment, if a blocking member that provides resistance to rice grains moving in the polished white room is provided on the inner surface of the polished white tube, the polished horizontal rice as described in Patent Document 2 is used. In the machine, even when the supply of rice grains is increased and the filling degree of the rice grains in the refined white room is increased, the fluidity of the rice grains can be ensured and the efficiency of the polished rice can be improved.

In the polishing type horizontal rice mill of another embodiment of the present invention, it is preferable that the grinding roller is formed to be divided into a plurality of rollers.

If the grinding-type horizontal rice mill of this embodiment is formed so that the grinding drum can be divided into a plurality of drums, assembly or replacement becomes easy, and a single operator can perform the combination and other operations. In addition, in the case where the abrasive particle layer of a part of the grinding drum is worn, it is only necessary to replace the necessary drum, which is more cost effective than the case of replacing the entire grinding drum. [Effect of the present invention]

According to the present invention, it is possible to provide a grinding-type horizontal rice mill, which can ensure the fluidity of rice grains and improve the efficiency of polished rice even when the supply of rice grains is increased and the filling degree of rice grains in the whitening room is increased.

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view of a polishing-type horizontal rice mill according to an embodiment of the present invention. The polishing-type horizontal rice mill 100 according to the embodiment of the present invention includes a valley feeding unit 110 and a whitening unit 120. The grain-feeding section 110 includes a cylindrical grain-feeding cylinder 111 and a threaded drum 112 disposed in the grain-feeding cylinder 111. A grain-feeding chamber for conveying rice grains is formed between the grain-feeding cylinder 111 and the threaded drum 112. 113. The grain-feeding cylinder 111 has a raw material supply port 114 formed on an upper portion of one end side, a raw material supply cylinder 115 is provided upright at the raw material supply port 114, and an open end is formed on the other end side. The threaded drum 112 is mounted on a main shaft 116 which is rotationally driven by a drive motor (not shown).

The fine white portion 120 includes a cylindrical or polygonal fine white cylinder 121 composed of a porous wall such as a wire mesh, and a grinding drum 122 located in the fine white cylinder 121 and arranged coaxially with the threaded drum 112. A whitening chamber 123 is formed between the whitening cylinder 121 and the grinding drum 122 to whiten rice grains. Here, the grinding drum 122 has a circular outer peripheral surface in a vertical cross section in the axial direction, and a superhard abrasive grain layer is formed on the outer peripheral surface. The superhard abrasive grains composed of cBN abrasive grains or diamond abrasive grains are electrodeposited and formed. to make.

The whitening chamber 123 communicates with the grain-feeding chamber 113 at one end side, and the rice grains to be transported from the grain-feeding chamber 113 are refined in the white-refining chamber 123. The rice grain discharge discharge port 124 is closed with a baffle 125 that gives a predetermined biasing force by adjustment of a weight or the like.

A plurality of air-jet holes 126 are formed in the polishing drum 122, and air supplied into the polishing drum 122 is sprayed from the air-jet holes 126 from an air supply source (not shown). A bran collecting chamber 127 is provided around the fine white chamber 123, and the bran collecting chamber 127 communicates with a bran collecting duct 128 provided below.

In the grinding type horizontal rice mill 100 according to the embodiment of the present invention, the raw rice R supplied from the raw material supply cylinder 115 through the raw material supply port 114 to the grain-feeding chamber 113 is passed through the threaded drum 112 to the refined white chamber. 123 side delivery. Next, the raw rice R transported to the whitening chamber 123 is whitened by the grinding action of the grinding drum 122 and moved toward the discharge port 124, and the baffle 125 is pushed open and discharged.

In the whitening chamber 123, rice bran is generated due to the whitening of the raw rice R. However, the rice bran passes air from the holes of the whitening cylinder 121 through the bran collecting chamber 127 through the air blown from the air jet holes 126 formed in the grinding drum 122 It is discharged to the bran collecting duct 128.

Fig. 2 is an explanatory view showing a grinding drum, and is a front view. In addition, FIG. 3 shows a left side view of FIG. 2. In the embodiment of the present invention, a plurality of agitating grooves 131 are formed on a circular outer peripheral surface of the grinding drum 122 so as to extend parallel to the central axis of the grinding drum 122 and linearly extend. The groove 131 has a V-shaped cross-section, and the air injection hole 126 is formed to be opened on the inclined surface of the groove 131 that constitutes a V-shape.

FIG. 4 shows a sectional perspective view of FIG. 2. The polishing drum 122 has a hollow portion 132 inside. An air inlet 133 is provided at an end portion of one end of the grinding drum 122 on the discharge outlet 124 side of the fine white chamber 123, and is used to feed air f1 supplied from an air supply source (not shown) to The grinding drum 122 is introduced into the hollow portion 132.

Fig. 5 shows a perspective view of a cylindrical drum constituting a grinding drum. The polishing drum 122 includes a plurality of cylindrical drums 134. The cylindrical drum 134 includes a mounting portion 135 for the main shaft 116 in the center, and a plurality of pillars 136 provided in a radial shape at the mounting portion 135. Super hard abrasive grains are formed on the outer peripheral surface by the pillars 136.层 之 柱体 137。 Layer of the cylinder 137. In the grinding drum 122, a jet hole 126 opened in the V-shaped inclined surface of the groove 131 communicates with the hollow portion 132, and the air f2 is introduced from the air introduction port 133 into the hollow portion 132 of the grinding drum 122. The air f3 is sprayed from the opening in the groove 131 through the air-jet hole 126.

FIG. 6 is a left side view of FIG. 2 and is a diagram illustrating the operation of the grinding drum. In the embodiment of the present invention, the groove 131 for stirring of the grinding drum 122 is formed with an opening of the air-jet hole 126 on an inclined surface located at a position on the front side in the rotation direction A of the grinding drum 122.

In the embodiment of the present invention, the grinding drum 122 is rotationally driven and air f3 is blown from the air-jet hole 126. The rice grains are refined in the whitening chamber 123, so that the grinding by the grinding drum 122 is performed in the whitening chamber 123. The fine-grained rice grains are stirred by the plurality of grooves 131 for stirring, and are also stirred by the air blown from the air-jet holes 126, so the fluidity is greatly improved.

Therefore, according to the grinding type horizontal rice mill 100 according to the embodiment of the present invention, even if the supply amount of rice grains is increased and the filling degree of the rice grains in the whitening room 123 is increased, compared with the conventional grinding type horizontal rice mill Rice polishing machine can still ensure the fluidity of rice grains, so it can improve the efficiency of polished rice.

In addition, according to the polishing horizontal rice mill 100 according to the embodiment of the present invention, air is sprayed from the air-jet hole 126 toward the rear of the grinding drum 122 in the direction of rotation A, and the generated air in the fine white room 123 can be blown. Rice bran is effectively discharged from the holes of the fine white tube 121.

FIG. 7 shows another operation explanatory diagram of the polishing drum, which is another embodiment of the present invention. In another embodiment of the present invention, the groove 131 for stirring of the grinding drum 122 is formed with an opening of the air-jet hole 126 on an inclined surface located at a position rearward of the rotation direction A of the grinding drum 122.

According to the polishing-type horizontal rice mill 100 according to another embodiment of the present invention, air f3 is blown from the air-jet hole 126 toward the front of the rotation direction A of the grinding drum 122, so that the The white rice grains polished by the grinding action of the grinding drum 122 are more effectively stirred by the air blown from the air-jet holes 126.

Therefore, according to the grinding type horizontal rice mill 100 according to another embodiment of the present invention, even if the supply amount of rice grains is increased and the filling degree of the rice grains in the whitening room 123 is increased, compared with the conventional grinding type Horizontal rice mills can still ensure the fluidity of rice grains, so the efficiency of polished rice can be further improved.

In the embodiment of the present invention, the air-jet hole 126 may have an opening for blowing air toward the rice grain supply side of the fine white chamber 123. If the air-jet hole 126 has an opening that blows air toward the rice grain supply side of the fine white room 123, the rice grains can be more effectively stirred by the air.

In addition, in the embodiment of the present invention, the air jet hole 126 may have an opening for blowing air from the fine white chamber 123 toward the rice grain discharge side. If the air-jet hole 126 has an opening for blowing air from the fine white room 123 toward the rice grains discharge side, the rice grains can be stirred by the air, and the fluidity of the rice grains in the conveying direction can be improved.

In the embodiment of the present invention, the agitating groove 131 may be formed by a gently inclined surface in the rotation direction front side of the grinding drum 122 and a steeply inclined surface in the rotation direction rear side. For the groove 131, if the front side in the rotation direction of the grinding drum 122 is formed by a gentle slope, and the rear side in the rotation direction is formed by a steep slope, the rice grains flowing into the groove 131 from the gentle slope are forced by the steep slope. The ground is discharged, and the rice grains can be stirred more effectively.

In the embodiment of the present invention, the grinding drum 122 is constituted by combining a plurality of severable cylindrical drums 134. Therefore, the grinding drum 122 can be easily assembled or replaced, and various operations can be performed by a single operator. In addition, in the case where a part of the abrasive grain layer is worn, the grinding drum 122 can be replaced by only the necessary cylindrical drum 134, which is more cost effective than the case where the entire grinding drum is replaced.

In the embodiment of the present invention described above, although the case where the grinding type horizontal rice mill 100 is not provided with a blocking claw in the whitening room 123 is described as an example, the grinding type described in Patent Document 2 shown in FIG. 9 In the case of a horizontal type rice mill, a blocking claw that provides resistance to rice grains moving in the whitening room is provided. Similarly, when the supply of rice grains is increased and the filling degree of the rice grains in the whitening room is increased, the flow of rice grains can be ensured Improve the efficiency of polished rice.

The present invention is not limited to the above-mentioned embodiments, and it is naturally possible to appropriately change the configuration without departing from the scope of the invention. [Industrial availability]

The grinding-type horizontal rice mill of the present invention can ensure the fluidity of rice grains and improve the efficiency of polished rice even when the supply of rice grains is increased and the filling degree of rice grains in the refined white room is increased, so it is extremely useful.

6‧‧‧line network
14‧‧‧ Emery Roller
15‧‧‧White Room
18‧‧‧ grinding rotor
19‧‧‧ Porous wall dehulling white tube
20‧‧‧White Room
21‧‧‧ rice grains outlet
23‧‧‧ bezel
26‧‧‧Exhaust
27‧‧‧Pressure cover
28‧‧‧ weight
29‧‧‧ blocking claw
100‧‧‧ Grinding Type Horizontal Rice Mill
110‧‧‧ Valley delivery department
111‧‧‧Send grain tube
112‧‧‧Threaded Drum
113‧‧‧Valley delivery room
114‧‧‧ raw material supply port
115‧‧‧ raw material supply cylinder
116‧‧‧ Spindle
120‧‧‧ Fine White Department
121‧‧‧ white tube
122‧‧‧Grinding roller
123‧‧‧White Room
124‧‧‧Exhaust
125‧‧‧ bezel
126‧‧‧air hole
127‧‧‧Branch Room
128‧‧‧ collection bran catheter
131‧‧‧ trench
132‧‧‧Hollow
133‧‧‧air inlet
134‧‧‧ cylindrical drum
135‧‧‧Mounting Department
136‧‧‧ Pillar
137‧‧‧cylinder
f2, f3‧‧‧ air
R‧‧‧ raw rice

FIG. 1 is a schematic cross-sectional view of a polishing-type horizontal rice mill according to an embodiment of the present invention. Figure 2 is a front view of the grinding drum. FIG. 3 is a left side view of FIG. 2. FIG. 4 is a sectional perspective view of FIG. 2. Fig. 5 is a perspective view of a cylindrical drum. Fig. 6 is a diagram illustrating the operation of the polishing drum. Fig. 7 is a diagram for explaining another operation of the polishing drum. FIG. 8 is an explanatory diagram of a conventional grinding-type horizontal rice mill. FIG. 9 is an explanatory diagram of a conventional grinding-type horizontal rice mill.

no

126‧‧‧air hole

131‧‧‧ trench

134‧‧‧ cylindrical drum

135‧‧‧Mounting Department

136‧‧‧ Pillar

137‧‧‧cylinder

f2, f3‧‧‧ air

Claims (7)

A polishing-type horizontal rice polishing machine has a refined white cylinder composed of a porous wall and a grinding roller rotatably arranged in the refined white cylinder. A refined white chamber is formed between the refined white cylinder and the grinding roller, Rice grains supplied at one end of the whitening chamber are refined in the whitening chamber, and the whitened grains are discharged from the other end of the whitening chamber, which is characterized by a circular outer periphery of a cross section perpendicular to the axial direction of the grinding drum. A groove for agitating extending in the axial direction is formed on the surface, and a plurality of air-jet holes are formed in the groove. Air is blown from the air-jet hole while the grinding drum is rotationally driven, and the whitening is performed in the whitening room. For example, the polishing-type horizontal rice mill of claim 1, wherein the air-jet hole has an opening for blowing air in the groove toward the rear of the grinding drum in the direction of rotation. For example, the polishing-type horizontal rice mill of claim 1, wherein the air-jet hole has an opening for blowing air in the groove toward the front of the rotation direction of the grinding drum. For example, the polishing type horizontal rice mill of any of claims 1 to 3, wherein the groove is formed by a gently inclined surface on the front side and a steep inclined surface on the rear side in the rotation direction of the grinding drum. form. The polishing-type horizontal rice mill according to any one of claims 1 to 3, wherein the grinding drum includes an outer peripheral surface on which a super-hard abrasive grain layer is formed. For example, the polishing type horizontal rice mill of any one of claims 1 to 3 of the patent application scope, wherein a blocking member that provides resistance to the rice grains moving in the white rice chamber is provided on the inner surface of the white rice cylinder. For example, the polishing type horizontal rice mill of any one of claims 1 to 3, wherein the grinding roller is formed to be divided into a plurality of rollers.