JP2001157848A - Grain pearling container of grain pearling mill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a noise prevention treatment to a gain pearling container, i.e., a noise source, of a grain pearling mill without increasing the size of the mill and without using a sound absorption material to thereby provide a grain pearling container of which the noise generation during grain pearling is reduced. SOLUTION: In the grain pearling mill, grains are pearled under agitation in a grain pearling container 4, enclosed and fixed in a machine frame 2, with a rotary agitator 13 installed upright at the bottom center of the container 4. The container 4 is equipped with an agitator 13 or an agitator drive shaft 23 rotated by a motor 3, a porous wall 6 for bran removal, and a frame 4B installed at the upper side of and connected to the upper part of the porous wall 6. The upper part of the porous wall 6 and the lower part of the frame 4B are connected with overlapping with some width so as to relatively give them play and so as not to allow them to rotate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention A stirrer that stands up and rotates and a grain container surrounding the stirrer are provided. Grains are put into the grain container, and the stirrer is rotated by driving means to stir the grains. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain container of a grain mill for grain milling, and more particularly to a grain container in which noise generated by stirring of grains is reduced.

[0002]

2. Description of the Related Art In the case of a large-scale mill installed outdoors, which is commonly called "coin milling", it is used outdoors, so that the user does not notice much noise. Noise measures can be taken sufficiently. But,
JP-A-56-176042, JP-A-11-19752
As disclosed in No. 1, when using a small-sized "home-use" rice-milling machine for rice milling, particularly about 5 rice, indoors, the noise generated during the milling is anxious.
Especially, household grain mills developed for easy use in kitchens and kitchens are small, but if the noise during use is not unbearable, the usage time can be 1-2 minutes, long It is on the order of minutes and it is desired to be as quiet as possible to use it in the room.

[0003]

With such a household grain mill, noise can be easily prevented by using a conventional sound absorbing material, but a space for packing the sound absorbing material is absolutely necessary. Since it is desired that the household grain mill be small, it is a means to avoid increasing the size by adding a volume for preventing noise as much as possible.

A sound absorbing material used for noise prevention, for example, urethane foam, has a fine space due to its function, so that the bran component generated by the cereal grains enters the sound absorbing material portion with long-term use. Considering the possibility, this condition is an excellent hotbed of pests and there is a concern that new damage may occur, and if possible, we do not want to use such a sound absorbing material to prevent noise. Even if the structure is changed to prevent noise, it is desired that the structure be easily realized, and the structure is not desired to be complicated.

[0005] From the above, it is possible to reduce the noise generated at the time of grain crushing by preventing noise from occurring in the grain crushing container, which is a source of noise, without increasing the size of the grain crushing machine and without using a sound absorbing material. It is an object of the present invention to provide a milling container for a milling machine. Further, the present invention provides a simple grain container configuration for realizing noise prevention of the grain container.

[0006]

SUMMARY OF THE INVENTION According to the present invention, cereals are agitated while stirring the grains in the cereal vessel by means of a rotating stirrer which is erected at the center bottom of the cereal vessel accommodated in the machine frame. A grain-milling device, wherein the grain-milling container is provided with a stirring body rotated by a driving means or a stirring-body driving shaft, and a grain-forming section having a plurality of holes through which grains do not come out; The upper part has an additional frame part provided in a substantially continuous shape with the upper part, and the upper part of the grain part and the lower part of the additional frame part have an overlap allowance of a predetermined width, so that these have relative play and A means for solving the above problem is provided by a grain container of the grain mill which is engaged so as not to rotate.

That is, in the present invention, the following improvements have been made to a grain container without using a sound absorbing material. That is, a grain container, a grain portion in which a plurality of holes are formed such that grains for discharging bran peeled off from the surface of the grain by the grain are formed, and an upper portion of the grain portion. It consists of two parts, an upper part and an additional frame part which is provided in a substantially continuous shape, and has an overlap allowance of a predetermined width at an upper part of the grain part and a lower part of the additional frame part, which have relatively play. And are engaged so as not to rotate.

[0008] In the household rice mill according to the present invention, the vibration generated by the contact between the grain stirred by the stirrer and the milled portion is the main source of noise. In order to prevent noise caused by such a factor generated in the grain portion from being transmitted to other portions, a structure is provided in which a play is relatively provided between the grain portion and an additional frame portion provided above the grain portion. As a result, the vibrations of the grain milling section are not directly transmitted to the additional frame section, and the vibrations are not amplified and generate large noise in the additional frame section. To be transmitted to the outside and leaked to the outside.

[0009] Here, the additional frame portion refers to the grain storage capacity and grain storage capacity of the grain milling apparatus, regardless of whether the configuration or shape is perforated or non-porous, even if the configuration and shape do not directly contribute to the grain milling action. Includes a structure that increases the capacity to secure the capacity, or a part that has a structure that forms a space that allows grains stirred by the milling action to jump in the milling vessel, and is exactly the same as the milling section It may be a material or a material different from the grain portion.

[0010] Since the grain mill is provided with a stirring body driven by the driving means, the grain mill does not rotate with the rotation of the stirring body, that is, the grain mill rotates relative to the additional frame. It is engaged so as not to move. That is, the grain portion and the additional frame portion are not joined to each other, and play is provided at a predetermined overlapping margin portion between the upper portion of the grain portion and the lower portion of the additional frame portion so as to overlap and engage so as not to rotate. . As a result, since the grain portion and the additional frame portion are not joined to each other, the vibration of the grain portion is not directly increased and transmitted to the frame portion. In addition, since it is engaged, the grain portion does not rotate independently. The additional frame portion is preferably configured so that it can be fixed in the machine frame by storing it in the machine frame. This can be achieved by appropriate fitting or engagement between the inside of the machine frame and the additional frame portion.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of a household rice mill according to the present invention will be described with reference to FIGS. FIG. 1 is a central longitudinal sectional view showing the internal configuration of a household rice mill. Reference numeral 1 denotes a household rice mill, reference numeral 2 denotes a machine frame, which accommodates a motor 3 and the like serving as a driving source at a lower portion, and accommodates a mortar container (milling container) 4 and the like at an upper portion. The mortar-shaped container 4 is formed in a hopper shape whose upper part can be opened by removing the lid 5, and at least the lower peripheral wall of the mortar-shaped container 4 is formed on the bran removing porous wall 6. The lower peripheral wall of the bran removing porous wall 6 is formed in a cylindrical portion 7 having an inner diameter smaller than the inner diameter of the upper edge of the mortar-shaped container 4. Reference numeral 8 denotes a non-porous bottom portion, and reference numeral 9 denotes fixing means for fixing the mortar-shaped container 4 to the bran collecting container 10. Code 22
Numeral denotes a projection of the bran collecting container 10. The fixing means 9 of the cylindrical portion 7 is fitted to the outer periphery of the projection 22 to fix the non-porous bottom portion 8.

The outer periphery of the mortar-shaped container 4 is surrounded by a cylindrical bran collecting container 10. At this time, since the lower peripheral wall of the bran removing porous wall 6 is formed in the cylindrical portion 7 having a small diameter, the bran removing chamber 11 is formed in the gap between the mortar-shaped container 4 and the bran collecting container 10. The mortar-shaped container 4 is fixed to the outer frame 2a by the protrusion 22 and the upper end of the bran collecting container 10. The bottom 8 of the mortar 4
At the center, there is provided a bearing 23 for rotatably supporting the longitudinal axis 12, and the longitudinal axis 12 is provided with a milling longitudinal axis 24 having a plurality of agitating projections 13 radially mounted thereon. A joint 14 is provided below the shaft 12 so that the rotational force from the motor 3 can be separated.

Next, the structure of the drive source and the like housed in the machine frame 2 will be described. The machine frame 2 includes a motor 3 whose rotation speed can be changed.
And a vertical axis 16 rotatable by a bearing 15 is provided directly below the vertical axis 12. A motor pulley 17 is mounted on the motor shaft 26 of the motor 3, while a relay pulley 18 is mounted on the upper part of the longitudinal axis 16, and the other joint 25 of the joint 14 is mounted on an upper part of the relay pulley 18. . The belt 1 is provided between the motor pulley 17 and the relay pulley 18.
9, the rotational force of the motor 3 moves to the vertical axis 16, for example,
It is formed so as to be transmitted at a reduction ratio of 1: 3. Reference numeral 20 denotes a rotation sensor for detecting the number of rotations of the vertical axis 16;
Reference numeral denotes an operation panel provided with an operation switch, a switch for setting a sticking amount and whiteness, and an LED for displaying the setting.

Further, a structure for ventilating into the mortar container 4 will be described with reference to FIG. An air inlet 27 and an air outlet 28 communicating with the outside are provided at the bottom 2b of the machine frame 2.
Are formed, and inside the machine frame 2 are formed a wind guide path 29a for taking in external air and a discharge path 29b for discharging the taken-in air. That is, the air guide path 29a
Is formed in a space between a partition wall 30a for vertically partitioning the inside of the machine frame 2 and the operation panel 21 in front of the rice milling machine, and an exhaust air passage 29b is provided between the partition wall 30b for vertically partitioning the inside of the machine frame 2 and the rice milling machine. It is formed in a space with the side wall of the rear machine frame 2. The upper part of the air duct 29a communicates with the air duct 31a formed in the outer frame 2a at the front of the rice mill, and the lower part of the air duct 29a connects the air inlet 27. Further, the upper part of the exhaust air passage 29b communicates with an exhaust air passage 31b formed in the outer frame 2a at the rear of the rice mill,
The lower portion of the exhaust passage 29b is connected to an air outlet 28 via a blower fan 32 driven by the motor 3.

The air guide path 31a and the exhaust path 31b
Are partition walls 34a, 34 that vertically partition the inside of the outer frame 2a.
b, the inner wall of the lid 5 fitted on the upper portion of the outer frame 2a has portions 33a, 33b intersecting with the extension lines of the partition walls 34a, 34b so as not to block the air guide path 31a and the exhaust path 31b. May be cut out in the outer circumferential direction to form air flow passages 35a and 35b.

FIG. 2 is an enlarged sectional view of the periphery of the cylindrical portion 7 of the mortar-shaped container 4. As shown in FIG. The shape of the agitating projection 13 will be described in detail with reference to FIG. The agitating projection 13 is a lateral transport surface 13 that transports the rice grains deposited in the cylindrical portion 7 to the inner peripheral surface of the cylindrical portion 7.
A and the rice grains transported on the horizontal transport surface 13A are transferred to the cylindrical portion 7.
Vertical transport surface 13B raised along the vertical transport surface 13B
B is a shape provided with a throwing surface 13C for throwing the rice grains transported in B onto the inclined surface 6A of the mortar-shaped container 4.

FIG. 4 shows the mortar-shaped container 4 and the bran collecting container 1
0 is a schematic component diagram showing a state in which the mortar-shaped container 4 is separated from the machine frame 2 and the mortar-shaped container 4 and the bran collecting container 10 are separable. Referring to FIG. 4, rice grains and bran can be carried after the completion of the milling, and maintenance after use can be easily performed. Reference numeral 4A is a flange provided on the upper peripheral edge of the mortar-shaped container 4 for mounting the mortar-shaped container 4 on the bran collecting container 10. Reference numeral 10A is provided on the upper peripheral rim of the bran-collecting container 10, and is taken out from the outer frame 2a. This is the collar for the handle.

Next, the operation of the household rice mill according to the present invention in the above configuration will be described. When milling rice to be eaten at home in the range of one go to several go, remove the lid 5 and put brown rice weighed with a measuring cup etc. from the opening surface of the mortar container 4 to remove brown rice It is stored in the cylindrical portion 7 of the porous wall 6. At this time, since the inner diameter of the cylindrical portion 7 is formed relatively small, even a small amount of brown rice does not accumulate in a thin layer, and has a layer thickness that is high enough to hide the stirring projection 13. Is deposited. Next, the lid 5 is fitted to the mortar container 4 and the operation panel 21
The setting amount is set by a setting amount switch (not shown), the whiteness is set by a whiteness setting switch (not shown), and the operation switch (not shown) is turned on to start polishing. . Then, the control device (not shown)
Calculates the number of rotations and driving time of the motor 3 according to the set amount of sticking and whiteness or reads a preset value, and supplies electricity to the motor 3 based on the calculation result or the read value. Drive. For example, when the sticking amount is set to “one go” and the whiteness is set to “white rice”, the rotation speed is set to 2,400 rpm and the driving time is set to 90 seconds.

When the torque of the motor shaft 26 is transmitted to the longitudinal axis 16 via the belt 19 by the motor 3, the joint 26,
It is transmitted to the longitudinal axis 12 in the mortar container 4 via 14. As a result, the stirring protrusion 13 mounted on the vertical axis 12 rotates. However, since the stirring protrusion 13 is deposited so as to be almost hidden by the introduced brown rice, sufficient polishing power is given. Become. This milling state will be described.
3 is extruded in the inner circumferential direction of the cylindrical portion 7 by the rotation of the horizontal transport surface 13A, and then is raised while rotating on the inner peripheral surface of the cylindrical portion 7 by the rotation of the vertical transport surface 13B. It is thrown up on the inclined surface (porous wall 6 for bran removal) of the shaped container 4. As a result, the rice grains form a large circulation locus in the mortar-shaped container 4 and are milled (see the locus indicated by the broken line in FIG. 5). ) Decreases, and the finished whiteness becomes the same as the set whiteness.

When the motor shaft 26 is rotated by the motor 3, the blower fan 32 is rotated, and external air is taken into the mortar container 4 through the air inlet 27, the air guide path 29a and the air guide path 31a. Can be Since this external air easily flows in from the flow passage 35a provided in the lid 5, the rice grains heated by polishing rice in the mortar-shaped container 4 can be cooled, and the incidence of broken rice can be prevented. Further, even if the temperature of the air in the mortar container 4 rises, the inside of the mortar container 4 is cooled by the inflow of external air, and the lid 5 is closed.
The occurrence of dew condensation on the inner surface can be prevented.

The air flowing into the mortar container 4 is
5b, the air is exhausted to the outside through the exhaust path 31b, the blower fan 32, the exhaust path 29b, and the air outlet 28. At the same time, the motor 3 heated by the suction of the air by the blower fan 32 can be cooled.

When the driving time has elapsed and the milling is completed, the lid 5 is removed as shown in FIG. 4, and the mortar-shaped container 4 and the bran collecting container 5 are removed from the base 2 by holding the flange 10A by hand. You can carry the milled white rice. Also,
Since the mortar-shaped container 4 and the bran collecting container 5 can be separated, the bran can be taken out from the bran collecting container 5 when using the bran for food, and the maintenance such as washing with water after use is easy. It can be carried out.

Next, a first embodiment of the mortar type container 4 (milling container) of the present invention will be described with reference to FIGS. FIG.
6A is an enlarged end view of a portion denoted by reference numeral 37 in FIG. 2, and FIG. 6B is a cross-sectional view taken along line BB of FIG. 6A. The mortar-shaped container 4 includes an additional frame portion 4B and a perforated wall for bran removal (milled portion) 6, and an upper end of the perforated wall 6 for bran removal and a lower end of the additional frame portion 4B have a predetermined overlap margin 40. , With play 41,42. The upper end of the bran-removing porous wall 6 and the lower end of the additional frame portion 4B have substantially the same flat cross-sectional shape in FIG. 2 (similar shape), and are formed substantially continuously when viewed from the side. Further, the additional frame portion 4B and the bran removing porous wall 6 are provided with a protrusion 43 on one side and a concave portion 44 on the other side so as to prevent relative rotation.

At the upper end of the bran removing porous wall 6, a ring 45 having a concave portion 44 formed at a predetermined location around the upper end thereof is fixedly attached. Also, at the lower end of the additional frame portion 4B,
A ring 47 having a predetermined gap 46 larger than the plate thickness of the additional frame 4B and the ring 45 is fixedly attached. Further, a projection 43 is formed at a predetermined location on the inner surface around the ring 47.

The bran removing porous wall 6 to which the ring 45 is fixed is increased and attached to the lower end of the frame portion 4B, and the ring 47 is lifted from below the ring 45 (the bran removing porous wall 6) to surround the ring 42. The object of the present invention can be attained by attaching the projection 43 and the recess 44 so that the ring 47 is increased and fixed to the frame 4B. In the mortar-shaped container 4 configured as described above, there are gaps 41 and 42 between the additional frame portion 4B and the porous wall 6 for bran removal, and the rings 45 and 47.
The relative rotation is prevented by the recesses 44 and the projections 43, so that even if the rice is polished as described above, the vibration of the bran-removing porous wall 6 caused by the rice polishing is increased, and the vibrations are directly transmitted to the frame 4B. Therefore, the noise is not transmitted directly to the machine casing 2 and the noise generated by the milled rice can be reduced. Further, in the space within the bran removing porous wall 6, since the rice grains in the milled rice are pushed and moved in one rotation direction by the agitating projections 13, the rice bran removing porous wall 6 also receives this action and receives a rotating action. Since the relative rotation is prevented by the concave portion 44 and the projection 43, the bran removing porous wall 6 does not have to be fixed to the frame portion 4B as in the prior art. The rice grains are milled without turning.

Although the bran removing porous wall 6 is fixed to the outside of the ring 45, it may be inside. Similarly, the ring 45 and the ring 47 may be provided inside the additional frame 4B. Also, the explanation has been given on the assumption that the bran removing porous wall 6 has a circular flat cross-sectional shape. However, if it is polygonal (hexagonal or octagonal), the ring shape is naturally polygonal accordingly. Needless to say. Also,
The positions of the protruding portions 43 and the concave portions 44 may be interchanged with each other and may be formed in one place or in a plurality of places. The shapes of the protrusions 43 and the recesses 44 are not limited to the present embodiment.

As for the gaps 41 and 42, it is sufficient that at least one of the gaps exists. The purpose of the gap is that the additional frame 4B and the porous wall 6 for bran removal are not fixed. It is not a requirement that both 41 and 42 have a uniform gap. The additional frame 4B is shown as a non-porous wall in FIGS. 1 to 4, but may be the same as the bran removing porous wall 6. The fixing means may be welding, riveting, or a method using an adhesive.

The second embodiment will be described with reference to FIGS. 7 (a) and 7 (b). While the configuration shown in FIG. 6 is such that the additional frame portion 4B and the porous rice bran wall 6 are engaged in an inclined state, the configuration shown in FIG. The figure shows that the porous wall 6 is engaged in a substantially vertical state. FIG. 7B shows a cross-sectional shape taken along the line CC. The engagement shown in FIG. 7, for example, inserts the additional frame 4B into the ring 45,
Here, the vertically divided ring 47 surrounds the ring 45, and the vertically divided portion of the ring 47 is TIG.
The object of the present invention is achieved by welding and adding the ring 47 to the frame portion 4B. When the protrusion of the ring 47 is an obstacle, it may be designed so that the rings 45 and 47 are provided inside the additional frame portion 4B (the perforated wall 6 for removing bran).

In this configuration, similarly to the first embodiment, in the mortar-shaped container 4 thus configured, gaps 41 and 42 are provided between the additional frame portion 4B and the porous wall 6 for bran removal. Further, since the relative rotation is prevented by the concave portions 44 and the projecting portions 43 of the rings 45 and 47, the vibration of the rice bran removing porous wall 6 generated by the milled rice is not directly transmitted to the frame portion 4B, Therefore, it is not directly transmitted to the machine frame 2,
The noise generated by rice polishing can be reduced. Further, since the relative rotation is prevented by the concave portion 44 and the protruding portion 43, the bran removing porous wall 6 does not have to be additionally fixed to the frame portion 4B as in the related art. In No. 6, the rice grains are milled as before without rotation.

Next, a third embodiment will be described with reference to FIG.
This is an example in which the projection 43 is formed directly on the lower end of the additional frame 4B, and also shows an example in which a ring for engagement is fixed only to the porous wall 6 for bran removal. In this case, ring 4
5 is provided with an opening 48 which is larger than the cross section of the projection 43 so as to correspond to the projection 43.
And the ring 45 are provided with a gap 41, and when the projection 43 is inserted into the opening 48, the projection 43 is not restrained by the opening 48, so that the porous wall 6 for bran removal increases and does not adhere to the frame 4B. It is formed as follows. In this case, the ring 45 is fixed to the upper end of the bran removing porous wall 6, and the ring 45 of the bran removing porous wall 6 is increased and pressed against the lower end of the frame 4 </ b> B, so that the projection 43 is set in the opening 48. Thereby, the object of the present invention is achieved.

The noise value when the rice is milled by the mortar-shaped container 4 constructed as described above and the noise value when the rice is milled by the conventional mortar-shaped container having the additional frame and the porous wall for bran removal fixed. When measured and compared with a sound level meter, the noise value of the conventional rice milling apparatus was 75 dB, and the noise value of the rice milling apparatus of the present invention was 68 dB, and a reduction of 7 dB was achieved.

[0032]

According to the present invention, the grain container comprises a stirring body rotated by a driving means or a stirring body drive shaft, and a grain section having a plurality of holes through which grains do not come out, and an upper portion of the grain section. The upper part is provided with an additional frame part provided in a substantially continuous shape, and the upper part of the grain part and the lower part of the additional frame part have an overlap allowance of a predetermined width. It is a grain container engaged so as not to increase the noise of the grain part generated by the grain, and it does not transmit to the frame part, and it does not amplify, so it is possible to reduce the noise at the time of the grain. It can be used comfortably at home.

The additional frame portion and the grain portion are provided with a gap at a predetermined interval larger than the thickness of the other one of the upper portion of the grain portion and the lower portion of the additional frame portion. The grain container is inserted into the gap and engaged so as not to rotate relatively, and the additional frame portion and the grain portion are shaped such that the upper portion of the grain portion is added from outside the lower portion of the frame portion, An additional ring-shaped plate surrounding the upper portion of the stacked grain portion is provided with a predetermined gap with the frame wall and fixed to the additional frame portion, and the upper portion of the grain portion is inserted into the gap and engaged. Because of the use of the grain container, the additional frame portion and the grain portion can be integrally manufactured by engagement without relying on fixing, and these engagements can be easily realized without requiring special assembly processing.

The overlapping margin between the lower portion of the additional frame and the upper portion of the grain portion has a shape in which the inner volume gradually decreases from above to below, and when the upper end of the grain portion is relatively large, the upper end of the grain portion is formed. Both can be temporarily fixed in a form attached from the lower end of the additional frame. When the lower end of the additional frame portion is relatively large, both can be temporarily fixed in such a manner that the grain portion is dropped from above the inner side of the additional frame portion. Therefore, the time and effort for fixing in manufacturing can be omitted.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view showing the internal configuration of a household rice mill according to the present invention.

FIG. 2 is an enlarged cross-sectional view around a cylindrical portion of a bran removing porous wall.

FIG. 3 is a cross-sectional view taken along line AA of FIG.

FIG. 4 is a schematic component diagram showing a detached state of the internal configuration of the household rice mill.

FIG. 5 is a schematic view showing a trajectory of circulation of rice grains in a mortar container.

FIG. 6 is a first embodiment view (an enlarged view of a portion denoted by reference numeral 37) of the mortar-shaped container engaging portion according to the present invention.

FIG. 7 is a view showing a second embodiment of a mortar-shaped container engaging portion according to the present invention.

FIG. 8 is a diagram showing a third embodiment of a mortar-shaped container engaging portion according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Home rice mill 2 Machine frame 2a Outer frame 2c Bottom 3 Motor 4 Mortar-shaped container 4A Flange 5 Lid 6 Porous wall for bran removal 7 Cylindrical portion 8 Bottom 9 Fixing means 10 Bran collection vessel 10A Flange section 11 Bran removal room 12 Vertical Shaft 13 Stirring protruding piece 14 Joint 15 Bearing 16 Vertical axis 17 Motor pulley 18 Relay pulley 19 Belt 20 Rotation sensor 21 Operation panel 22 Projection 23 Bearing part 24 Vertical axis for rice polishing 25 Other joint 26 Motor shaft 27 Air intake 28 Air Discharge port 29 Air guide path 30 Partition wall 31 Air guide path 32 Ventilation fan 33 Notch section 34 Partition wall 35 Flow path 40 Overlap margin 41 Play 42 Play 43 Projection 44 Recess 45 Ring 46 Gap 47 Ring 48 Opening

Claims (5)

[Claims] 1. A grain-milling apparatus for milling grains while stirring the grains in the grain-milling container by means of a rotating stirrer which stands upright at the center bottom of the grain-milling container housed and fixed in the machine frame. In addition, the milling container has a stirring unit rotated by a driving means or a stirring unit driving shaft, and a milling unit having a plurality of holes formed therein through which grains do not come out. And an additional frame portion provided in a substantially continuous shape, and an upper portion of the grain portion and a lower portion of the additional frame portion have an overlap allowance of a predetermined width, so that they have relative play and do not rotate. A grain container for a grain mill characterized by being engaged. 2. An additional frame portion and a grain portion, wherein a gap at a predetermined interval larger than the thickness of the other portion is formed on one of the upper portion of the grain portion and the lower portion of the additional frame portion. The grain container of a grain mill according to claim 1, wherein the other is inserted into the gap and engaged so as not to rotate relatively. 3. The additional frame portion and the grain portion are formed such that the upper portion of the grain portion is overlapped from the outside of the lower portion of the frame portion, and a ring-shaped plate surrounding the upper portion of the stacked grain portion is added to the wall portion of the frame portion. 3. A grain container for a grain mill according to claim 2, wherein the grain is fixed to the additional frame portion with a gap, and the upper portion of the grain section is inserted into the gap and engaged. 4. A protruding portion is formed on one of the lower portion of the additional frame portion and the upper portion of the grain portion for engagement, and a concave portion for preventing relative rotation is formed on the other by the protruding portion. A grain container for a grain mill according to any one of claims 1 to 3. 5. The grain milling device according to claim 1, wherein the overlap between the lower portion of the additional frame portion and the upper portion of the grain portion has a shape in which the internal volume gradually decreases from above to below. Grain container.