JP2003211010A - Mill having function of quantitatively feeding material to be pulverized - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the freedom of the installation of a mill by dispensing with the necessity of the hand work supply of a material to be pulverized or of quantitative supply equipment for the material to be pulverized. <P>SOLUTION: A quantitative supply surface for the material to be pulverized which has a small inclined angle is formed from the inner circumferential side surface 26a containing an outlet 31 of a supply hole 30 of the material to be pulverized in an upper grinding surface 21 and an opposed inner circumferential side surface 26b in a lower grinding surface 22. The gap between upper and lower quantitative supply surfaces 26 is made narrow so that the material to be pulverized 38 is not discharged from the outlet 31 through the gap in the outer circumferential side direction. A quantitative supply groove communicating with the outlet 31 is provided in every supply port 30 for the material to be pulverized on the quantitative supply surface 26a for the material to be pulverized and is extended to reach an upper grinding surface 27a present in the outer circumferential side of the quantitative supply surface 26a of the material to be pulverized of an upper grinding surface 21. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mill for grinding various kinds of grains, tea and other materials to be ground.

[0002]

2. Description of the Related Art Conventionally, when milling various kinds of grains such as rice, wheat, buckwheat, beans, etc. for milling, a device that does not generate a large amount of heat and does not impair the flavor is used, for example, as shown in FIG. Is used. This mortar 1 is a combination of two mortars 2 and 3 which are vertically stacked, and has rubbing surfaces 4 and 5 which are vertically stacked. Then, as shown in FIGS. 5 and 6, the central portion 6 (6a, 6b) of the upper and lower lapping surfaces 4, 5 is partially removed, and most of the ring is provided with a large number of grooves 7 (7a, 7b) dispersedly arranged. A ground surface 8 (8a, 8b), and a mandrel 9 is erected at the center of one of the upper and lower laminating surfaces 4, 5, for example, the lower lapping surface 5, and the mandrel 9 is placed at the center of the upper lapping surface 4. A fitting recess 10 is drilled.

Further, the upper and lower rubbing surfaces 4 and 5 are continuously lowered from the inner peripheral side toward the outer peripheral side, and the inclination angle of the upper rubbing surface 4 with respect to the horizontal direction except for the outermost peripheral area 11 , Slightly larger than the inclination angle of the lower lapping surface 5. However, the inclination angle near the outermost periphery 11 is made equal to the inclination angle of the lower lapping surface 5. Then, a space 12 for accommodating grains of grains and coarse and fine pulverized products thereof is formed between the upper and lower surfaces 4 and 5. Therefore, a shallow flat-bottomed grain reservoir recess 13 is formed on the upper surface of the upper mill 2 except for the edge portion, and a feed hole 15 for feeding grain to the upper and lower lapping surfaces 4 and 5 is usually provided from an inlet 14 provided in the flat bottom. Drill one. At that time, the outlet 16 of the supply hole 15 is provided closer to the inner peripheral side of the upper lapping surface 4 so that the grain reservoir recess 13 and the crushed material storage space 12 communicate with each other. Therefore, when the grain is dropped from the supply hole 16 while rotating the upper mill 2, the space between the upper and lower surfaces 4 and 5 forming the crushed material storage space 12 gradually increases from the inner peripheral side toward the outer peripheral side. Since it is narrow, and close contact is made in the vicinity of the outermost periphery 11, milling can be performed.

[0004]

However, in such a mortar 1, it is necessary to manually drop a certain amount of the grain accumulated in the recess 12 of the upper mill 2 into the supply hole 15 by hand. At that time, if the amount of supply is too large, grains enter the storage space 12 for crushed material too much and the upper mill 1 floats.
The quality of the milling is deteriorated by being released in the state that a coarse pulverized product is contained. Therefore, the amount of supply must be constantly maintained at an appropriate amount, which is a heavy burden. However, if the upper mill 1 is made heavier, it becomes easier to perform good milling, but since the resistance at the time of rotation also increases, it is naturally necessary to increase the rotational force. Then, in order to solve the difficulty of the fixed amount manual supply, it is necessary to install the pulverized material constant amount supply device 17.

The present invention has been made by paying attention to such conventional problems, and provides a mill having a large degree of freedom of installation, which does not require manual supply of a crushed object or a crushed object quantitative supply device. The purpose is to do.

[0006]

In order to achieve the above object, a mill according to the present invention has upper and lower rubbing surfaces, and a mandrel is provided upright at the center of one of the upper and lower rubbing surfaces. At the center of the core, a core receiving recess to which the mandrel fits is bored, and the upper and lower lapping surfaces are lowered from the inner peripheral side toward the outer peripheral side with the overall inclination angle with the horizontal direction lowered,
The upper and lower mortar surfaces are combined with upper and lower mortars each having a grinding surface in which a large number of grooves are dispersed, and one or a plurality of crushed material supply holes for supplying the crushed material to the upper and lower mortar surfaces The main hole is provided, and the outlet of the supply hole is provided on the inner peripheral side surface of the upper lapping surface.

The inner peripheral side surface of the upper lapping surface including the ground material supply hole outlet and the inner peripheral side surface of the lower lapping surface facing each other serve as a constant amount of comminuted material supplying surface having a small inclination angle with the horizontal direction. , The gap between the upper and lower crushed object quantitative supply surfaces is made smaller so that the crushed object will not be discharged from the supply hole outlet to the outer peripheral side direction through the clearance while the mill is rotating, For each crushed material supply hole on the supply surface, one crushed material fixed quantity supply groove connected to the supply hole outlet is provided, and the crushed material fixed quantity supply groove reaches the upper grinding surface on the outer peripheral side of the upper lapping surface. Extend to

Further, one or a plurality of crushed material fixed quantity supply grooves facing the crushed material fixed quantity supply groove provided on the upper crushed material fixed quantity supply surface are provided on the lower crushed material fixed quantity supply surface while the die is rotating. It is preferable to extend the fixed-quantity-feeding groove for crushed objects until it reaches the lower grinding surface on the outer peripheral side of the fixed-quantity-feeding surface for crushed objects on the lower grinding surface.

Further, between the inner peripheral side surfaces of the upper and lower grinding surfaces, there are provided crushed object and crushed material accommodating spaces whose intervals are large on the inner peripheral side and continuously decrease toward the outer peripheral side. Should be in close contact. Further, it is preferable that the cross-sectional area of the crushed material fixed amount supply groove connected to the crushed material supply hole outlet provided on the upper crushed material fixed quantity supply surface is larger than the cross-sectional areas of other grooves.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying FIGS. FIG. 1 is a vertical cross-sectional view of a main part showing a state in which a material to be ground is piled up in a reservoir recess provided in an upper mill of a mortar having a function of quantitatively supplying the material to be ground (the position XX in FIG. 2). 2) is a bottom view of the upper mill, and FIG. 3 is a plan view of the lower mill. This mortar 18 also has two mortars, for example, stone mortars 19 and 2, as shown in FIG.
It is a combination of 0s stacked one above the other, and has rubbing surfaces 21 and 22 that overlap each other. Further, for example, a mandrel 23 is erected on the upper and lower rubbing surfaces 21 and 22 at the center of the lower rubbing surface 22 and a core receiving recess 24 is formed at the center of the upper rubbing surface 21 to which the mandrel 23 fits. To do.

However, the central portions 25 (25a, 25b) of the upper and lower lapping surfaces 21, 22 are ring surfaces without grooves, are held horizontally and are in close contact, and the outside is directed from the inner peripheral side to the outer peripheral side. Decrease the overall tilt angle with the horizontal direction and lower each. At this time, as shown in FIGS. 2 and 3, the ring surfaces 26 (26a, 26b) on the inner peripheral side, which are located on the outer sides of the central portions 25 of the upper and lower lapping surfaces 21 and 22 and are in close contact with each other, are brought into close contact with each other to quantify the material to be ground. The supply surface is provided, and the ring surfaces 27 (27a, 27b) on the outer peripheral side that are located on the immediate outer side of the supply surface are provided as grinding surfaces. Both the crushed object constant quantity supply surface 26 and the opposing grinding surface 27 are located between the concentric circles of the upper and lower lapping surfaces.

Therefore, a funnel-shaped grain reservoir recess 28 is formed on the upper surface of the upper mill 19 except for the edge portion, and the grain 29 to be crushed, such as buckwheat, is ground up and down from an inlet 29 provided at the deepest portion of the bottom. One supply hole 30 for supplying 21 and 22 is vertically formed. At this time, the outlet 31 of the supply hole 30 is provided on the crushed object quantitative supply surface 26a, and the supply hole outlet 31 is provided on the grinding surface 27.
It is provided slightly inward from the boundary line with a. Then, the crushed material constant amount supply surface 26b excluding the central portion 25b of the lower mill 20
And the angle of inclination between the ground surface 27b and the horizontal direction are constant, for example, 5
Every time.

Further, the rubbing surface 22 except the central portion 25a of the upper mill 20 is also inclined. However, the inclination angle of the pulverized material constant amount supply surface 26a with respect to the horizontal direction is equal to that of the opposed pulverized material constant amount supply surface 26b and is, for example, 5 degrees.
The ground surface 27a has a large inclination angle with the horizontal direction of the inner peripheral side surface 27a, which is a large part of the ground surface 27a, and is set to, for example, 7.5 degrees. The inclination angle of the outer peripheral side surface 27a2 in the vicinity of the outermost periphery excluding the inner peripheral side surface 27a1 of the grinding surface 27a with the horizontal direction is equal to the inclination angle of the lapping surface 22 excluding the central portion 25a of the upper mill 20 and is 5 degrees. .

Then, a space 32 for accommodating the grains and the coarse and fine crushed products between the upper and lower grinding surfaces 27 facing each other.
You can Therefore, the ground surface 27a of the upper mill 19 is equally divided into six surfaces, and one groove 33 is provided at the right boundary of each divided surface.
(33a, ... 33f) are provided respectively. At that time, each boundary groove 33 is provided at a tangential position with respect to the outer circle of the horizontal ring surface 25a provided in the central portion. Further, for each boundary groove 33, a plurality of grooves 34, for example, five grooves 34, which are parallel to the corresponding partition surface, are arranged at equal distances between adjacent boundary grooves 33 in the left direction. At that time, both the boundary groove 33 and the parallel groove 34 have substantially the same width and depth.

Five parallel grooves 34, which are provided immediately to the left of each boundary groove 33, are extended inwardly and are provided up to the vicinity of the central ring position of the crushed material constant amount supply surface 26a. At this time, since the extension portion 35 of one parallel groove 34 is used as a main groove for quantitatively supplying the object to be ground, the supply hole 30
Connect with exit 31 of. At that time, the crushed material constant quantity supply main groove 35
The width and depth of the groove are larger than the widths and depths of the other boundary grooves 33 and the parallel grooves 34, and further larger than the grain size of buckwheat as the crushed material. Then, the cross-sectional area of the crushed object quantitative supply main groove 35 becomes larger than the cross-sectional areas of the other boundary grooves 33 and the parallel grooves 34, and the buckwheat grains are directly fed from the supply hole 30 through the supply main groove 35 and crushed. A fixed amount can be supplied to the object storage space 32. The parallel groove 34 provided immediately to the left of the boundary groove 33b is not extended.

Similarly, the ground surface 27b of the lower mill 20 is also divided into 6 sections, and 6 boundary grooves 36 (36a, ... 36) are formed therein.
f) is provided. Similarly, the parallel grooves 3 are similarly formed for each boundary line 36.
7 is provided. However, the parallel groove 37, which is provided immediately to the left of each boundary groove 33, extends inward only every other groove.

When such a mortar 18 is used, it is not necessary to constantly and manually feed a crushed material such as buckwheat little by little, or to install a crushed material quantitative supply device.
Therefore, the degree of freedom in installing the mortar 18 is increased. After the installation, the buckwheat noodles 38 are piled up in the grain reservoir recess 28 of the upper mill 19 as a crushed object during milling. Then, the buckwheat noodles 38 fall from the grain storage recess 28 into the crushed object supply hole 30 provided vertically, and the outlet 31 is closed by the lower crushed object constant amount supply surface 26b, so that the inside is filled up. Fill. Moreover, since the soba 38 has a small inclination angle with respect to the horizontal direction of the crushed material constant amount supply main groove 35 connected to the outlet 31, the inside of the supply main groove 35 and the supply main groove 35 thereof.
The crushed material and the crushed material storage space 32 connected to each other do not go into the crushed material storage space 32 so much.

Therefore, in the case of human power, since the grooves in the upper mill 19 are in the right direction, they rotate in the right direction,
When using a motor, a water turbine, or other mechanical power, one of the upper and lower mills 19 and 20 is rotated to the right. Then, the soba 3 stayed near the entrance of the crushed object quantitative supply main groove 35
A centrifugal force acting on the outer peripheral side 8 acts. However, since the gap between the upper and lower crushed material quantitative supply surfaces 26 is so small that the buckwheat 38 does not pass through, the buckwheat 38 is not discharged in the outer peripheral direction. Therefore, the soba 38 gradually moves downward only inside the crushed material constant amount supply main groove 35 having a small inclination angle with the horizontal direction, and fills the inside of the main groove fully.

Then, for example, by rotating the upper mill 19,
The crushed material constant quantity supply main groove 35 has a lower crushed material quantity supply surface 26.
extension grooves 37a (37a) of the three parallel grooves 37 provided in b.
1, 37a2, 37a3). Then, the crushed material quantitative supply main groove 35 becomes a distribution groove, and the soba 3
8 can be periodically distributed to each extension groove 37a in a fixed amount. At this time, the crushed material constant amount supply main groove 35 is bent in a substantially horizontal direction with respect to the crushed material supply hole 30 provided vertically, and its inclination angle is small, so that the crushed material supply hole 30 is provided.
Since its cross-sectional area is much smaller than that of soybeans, too much buckwheat 38 will enter the crushed material constant amount supply main groove 35 and the upper mill 1
9 does not float up, the gap between the upper and lower quantitatively-pulverized material constant supply surfaces 26 becomes large, and the soba 38 is not discharged toward the outer peripheral side through the gap.

Further, each of the extension grooves 37a serves as a sub-groove for quantitatively supplying the object to be crushed, so that the buckwheat 38 can be regularly distributed in a fixed amount to each of the three divided surfaces having different directions of the upper and lower grinding surfaces 27. Further, the soba 38 left undistributed inside the crushed material constant amount supply main groove 35 directly enters the crushed material and crushed material storage space 32 and is evenly supplied to each divided surface of the upper and lower grinding surfaces 27. At that time, crushed object, crushed object storage space 3
In the inside of 2, since the interval between the upper and lower grinding surfaces 27 is continuously reduced from the inner peripheral side toward the outer peripheral side, the inner peripheral side contains a large amount of the object to be crushed, while The object to be crushed, etc., is also ground at each location such as the inner peripheral side surface 27a of the upper and lower grinding surface 27, and the particle size of the crushed material contained in the crushed material becomes gradually smaller.

Finally, the finely ground material contained in the storage space 32 is the outer peripheral side surface 2 of the upper and lower grinding surfaces 27 which are in close contact with each other.
It is ground well by 7a2 or the like and milled into a finely pulverized product, which is discharged from the outermost periphery of the upper and lower grinding surfaces 21 and 22 of the mortar 18. In this way, when the buckwheat noodles 38 accumulated in the grain storage recess 28 are continuously quantitatively supplied and milled as the upper mill 19 rotates, naturally the buckwheat noodles 3 accumulated in the recesses 28
8 decreases.

Then, when the remaining amount of the soba 38 becomes very small, the soba 38 is piled up again, and so on.
If you add the appropriate amount, you can continue the same milling, which is convenient. It should be noted that four parallel grooves 3 other than the constant-quantity-feeding main groove 35 for crushing objects provided on the constant-quantity-feeding surface 26a for upper crushed objects of the upper mill 19.
The extension grooves 34a (34a1, ... 34a4) of No. 4 are sweeping grooves for sweeping out powder adhering to the upper crushed material constant quantity supply surface 26a in the outer peripheral direction in order to keep the gap between the upper and lower crushed material quantity supply surfaces 26 small. Is.

In the above embodiment, one crushed material supply hole 30 is provided in the crushed material reservoir recess 28 of the upper mill 19, and the supply hole outlet 31 is provided in the crushed material constant amount supply surface 26a of the upper lapping surface 21. The case of providing one crushed object constant quantity supply main groove 35 connected to the crushed object has been described, but the crushed object supply hole is provided in the crushed object reservoir recess of the upper mill according to the size of the mill and the amount of the crushed object supplied. It is also possible to provide a plurality of, for example, 2 to 6, and to provide the crushed material constant quantity supply main groove connected to the supply hole outlet for each supply hole on the crushed material quantity supply surface of the upper lapping surface.

In the above embodiment, the inner peripheral side surface 27a1 of the grinding surface 27a provided on the grinding surface 21 of the upper mill 19 is used as a recess to form the crushed object and crushed object storage space 32.
It is also possible to form the ground object and the ground material storage space by making the inner peripheral side surface of the grinding surface provided on the grinding surface of the lower mill a recess.

[0025]

According to the present invention described above, claim 1
In the invention described, the inner peripheral side surface including the crushed object supply hole outlet of the upper grinding surface, and the inner peripheral side surface facing the lower grinding surface is a small crushed material quantitative supply surface of the inclination angle with the horizontal direction,
The gap between the upper and lower parts of the fixed quantity supply surface of the object to be ground is reduced so that the material to be ground is not discharged from the outlet of the supply hole through the clearance toward the outer peripheral side while the mortar is rotating. By providing one crushed material quantitative supply groove for each material supply hole, which is connected to the supply hole outlet, the outlet of the crushed material quantitative supply hole can be closed by the lower crushed material quantitative supply surface. It is possible to extend a groove for quantitatively supplying the material to be crushed, which is communicated with the groove, in a substantially horizontal direction.

Therefore, the material to be crushed is filled in the supply hole of the upper mill, and even if the material to be crushed is subjected to centrifugal force by the rotation of the mill, a large amount of material to be crushed is supplied in a short time to the groove for quantitatively supplying the material to be crushed. It is possible to supply a fixed amount little by little to the upper and lower ground surfaces through the supply groove without causing the waste. Therefore, it is not necessary to manually supply the crushed object or to install a crushed object quantitative supply device, and the degree of freedom in installing the mortar increases.

Further, in the second aspect of the invention, the fixed amount constant supply groove for the object to be ground, which the constant amount constant supply groove for surface to be grind provided on the upper constant amount supply surface for the object to be ground faces, is set on the lower constant amount object supply surface while the die is rotating. By arranging a book or a plurality of crushed objects, the crushed object is regularly provided on the lower crushed object quantitative supply surface through the crushed object quantitative supply groove provided on the upper crushed object quantitative supply surface while the mill is rotating. It is distributed to the supply groove, and through the lower crushed material constant quantity supply groove, it is in a different direction from the supply division surface by the upper crushed material constant quantity supply groove on the upper and lower grinding surfaces on the outer peripheral side of the upper and lower crushed material quantity supply surfaces. It is possible to quantitatively supply the crushed material to the supply division surface. Therefore, the material to be crushed can be dispersed on the upper and lower ground surfaces, and good milling can be performed.

Further, in the invention according to claim 3, between the inner peripheral side surfaces of the upper and lower grinding surfaces, there is provided a crushed object and a crushed object storage space in which the interval is large on the inner peripheral side and continuously decreases toward the outer peripheral side, By making close contact with the outer peripheral side surfaces of the upper and lower grinding surfaces, the object to be ground provided between the inner side surfaces of the upper and lower grinding surfaces and the ground material storage space are sequentially ground from the inner peripheral side toward the outer peripheral side. A large amount of coarse crushed material and fine crushed material is stored in a fixed amount, and the crushed material and coarse crushed material are crushed sequentially on the inner peripheral side to make finely crushed material, and finely crushed on the outer peripheral side that is in close contact. Milling can be satisfactorily performed by converting the pulverized product into a finely pulverized product.

Further, according to the invention of claim 4, the cross-sectional area of the crushed material constant quantity supply groove connected to the crushed material supply hole outlet provided on the upper crushed material quantity supply surface is made larger than other groove cross-sectional areas. The material to be crushed can be quickly and quantitatively supplied from the supply hole to the upper and lower ground surfaces through the constant quantity supply groove for the material to be pulverized and dispersed, and good milling can be performed.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view (corresponding to position XX of FIG. 2) showing a state in which a material to be ground is piled up in a reservoir recess of a mill having a function of quantitatively supplying the material to be ground to which the present invention is applied. is there.

FIG. 2 is a bottom view of the mill.

FIG. 3 is a plan view of the lower mill.

FIG. 4 is a longitudinal sectional view of a main part showing a state in which a material to be crushed is manually supplied from a reservoir recess provided in the upper mill of a conventional mill or is supplied by using a crushed material quantitative supply device. .

FIG. 5 is a bottom view of the mill.

FIG. 6 is a plan view of the lower mill.

[Explanation of symbols]

18 ... Milling mill 19, 20 ... Vertical milling 21, 21 ... Vertical laminating surface 23 ... Mandrel 24 ... Heart receiving recess 25 ... Vertical center horizontal ring surface 26 ... Upper and lower grinding material quantitative supply surface 27
... Top and bottom ground surface 28 ... Grinding material reservoir recess 29 ... Entrance
30 ... Milled object supply hole 31 ... Exit 32 ... Milled object,
Grinded material storage space 33, 36 ... Boundary groove 34, 37 ... Parallel groove 34a ... Sweep groove 35 ... Grinding material quantitative supply main groove
37a ... Sub-groove for quantitatively supplying object to be crushed

Claims (4)

[Claims] 1. An upper and lower rubbing surfaces are respectively provided, a mandrel is erected at the center of one of the upper and lower rubbing surfaces, and a core receiving recess to which the mandrel is fitted is bored at the other center. The upper and lower lapping surfaces are lowered from the inner peripheral side toward the outer peripheral side with a smaller overall inclination angle with respect to the horizontal direction, and each grinding surface has a large number of grooves distributed on the outer peripheral side of the upper and lower laminating surfaces. The upper mortar is combined with each other, and one or more crushed material supply holes for supplying the crushed material to the upper and lower rubbed surfaces are formed in the upper mortar, and the outlet of the supply hole is provided on the upper rubbed surface. A mill provided on the inner peripheral side surface, the inner peripheral side surface including the crushed material supply hole outlet of the upper grinding surface, and the opposing inner peripheral side surface of the lower grinding surface of the inclination angle of the horizontal direction. A small amount of material to be ground is supplied, and the space between the upper and lower surfaces of the material to be ground is fixed. It is made small so as not to be discharged to the outer peripheral side through the gap from the supply hole outlet during rotation, and on top of that, the pulverized material constant amount supply groove is connected to the pulverized material constant amount supply surface for each pulverized material constant amount supply surface. A mill having a function of quantitatively supplying a substance to be crushed, characterized in that one of them is provided, and a groove for quantitatively feeding the substance to be crushed is extended until it reaches an upper ground surface on the outer peripheral side of the upper lapping surface. 2. One or a plurality of crushed object constant quantity supply grooves facing the crushed object constant quantity supply groove provided on the upper crushed object constant quantity supply surface while the mill is rotating on the lower crushed object constant quantity supply surface. 2. The crushed material quantitative supply function according to claim 1, wherein the crushed material quantitative supply groove is extended to reach a lower grinding surface on an outer peripheral side of the crushed material quantitative supply surface of the lower lapping surface. Millet. 3. An object to be crushed and a crushed object accommodating space having a large inner peripheral side and a continuously small outer peripheral side are provided between inner peripheral side surfaces of the upper and lower ground surfaces, and outer peripheral side surfaces of the upper and lower ground surfaces. The mortar having a function of quantitatively supplying the material to be crushed according to claim 1 or 2, which is in close contact with each other. 4. The cross-sectional area of the crushed material constant quantity supply groove connected to the crushed material supply hole outlet provided on the upper crushed material quantity supply surface is made larger than other groove cross-sectional areas. Two
Or, a mill having the function of quantitatively supplying the crushed material according to item 3.