JP3651848B2 - Milling tool with a function to supply the material to be crushed - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an mortar that grinds various grains, tea, and other objects to be ground.
[0002]
[Prior art]
Conventionally, when milling various kinds of grains such as rice, wheat, buckwheat, and beans, a millstone 1 as shown in FIG. 4 is used as an apparatus that does not generate a large amount of heat and does not impair the flavor. . This mortar 1 is a combination of two mortars 2 and 3 stacked one above the other, and has slidable surfaces 4 and 5 that overlap one another. Then, as shown in FIGS. 5 and 6, a ring in which a large number of grooves 7 (7a and 7b) are distributed in a large part of the center portion 6 (6a and 6b) of the upper and lower surfaces 4 and 5 is removed. A mandrel 9 is erected at the center of one of the upper and lower mating surfaces 5, for example, the lower mating surface 5, and the mandrel 9 is formed at the center of the upper mating surface 4. The centering recess 10 to be fitted is drilled.
[0003]
Further, the upper and lower sliding surfaces 4 and 5 are continuously lowered from the inner peripheral side toward the outer peripheral side, respectively, and the inclination angle with respect to the horizontal direction of the upper sliding surface 4 is lowered except for the vicinity 11 of the outermost periphery. Slightly larger than the inclination angle of the mating surface 5. However, the inclination angle in the vicinity of the outermost periphery 11 is made equal to the inclination angle of the lower facing surface 5. As a result, a space 12 is formed between the upper and lower mating surfaces 4 and 5 for storing grain grains and coarse and fine pulverized materials. Therefore, a shallow flat bottom grain reservoir recess 13 is formed on the upper surface of the upper mill 2 except for the edge, and a supply hole 15 for supplying grain to the upper and lower mating surfaces 4 and 5 from an inlet 14 provided on the flat bottom is usually provided. Drill one. At that time, the outlet 16 of the supply hole 15 is provided close to the inner peripheral side of the upper facing surface 4 so that the grain storage recess 13 and the storage space 12 for pulverized material are communicated. Therefore, when the grain is dropped from the supply hole 16 while rotating the upper mill 2, the space between the upper and lower mating surfaces 4 and 5 forming the storage space 12 for the pulverized material is gradually increased from the inner peripheral side toward the outer peripheral side. Since it is in close contact with the outermost periphery 11, milling can be performed.
[0004]
[Problems to be solved by the invention]
However, in such a milling tool 1, it is necessary to continue dropping the fixed quantity little by little into the supply hole 15 by manual work on the grains stored in the recess 13 of the upper milling die 2. At that time, if the supply amount is too large, too much grain enters the storage space 12 for the pulverized material and the upper mill 1 is lifted, so that the quality of the milling is deteriorated by being discharged in a state in which the coarse pulverized material is included. Become. Therefore, the supply amount must be constantly kept at an appropriate amount, which is a heavy burden. However, if the upper mill 1 is made heavy, it is easy to perform good milling. However, since the resistance at the time of rotation increases, naturally, it is necessary to increase the rotational force. And in order to solve the difficulty of the fixed quantity supply by manual work, installation of the pulverized object fixed quantity supply apparatus 17 is needed.
[0005]
The present invention has been made by paying attention to such conventional problems, and provides a tool with a high degree of freedom of installation that does not require the supply of the object to be crushed or the pulverized object quantitative supply device. Objective.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the milling tool according to the present invention has an upper and lower overlapping surfaces, and a mandrel is erected at one center of the upper and lower rubbing surfaces, and the mandrel is fitted at the other center. A receiving recess is drilled, and the upper and lower mating surfaces are lowered from the inner circumference side to the outer circumference side by decreasing the overall inclination angle with the horizontal direction, and a large number of grooves are distributed on the upper and lower mating surfaces. The upper and lower mortars each provided with a ground surface are combined, and one or a plurality of pulverized material supply holes for supplying the pulverized material to the upper and lower surface of the upper mortar are formed in the vertical direction. Is provided on the inner peripheral side of the upper mating surface.
[0007]
Then, the inner peripheral side surface including the outlet of the object to be pulverized on the upper facing surface and the inner peripheral side surface opposite to the lower facing surface are set as the pulverized material quantitative supply surface having a small inclination angle with respect to the horizontal direction. The crushed material constant supply surface that overlaps the crushed material constant supply surface is made small so that the pulverized material is not released from the outlet of the feed hole through the gap to the outer circumferential side during rotation of the mortar. Each crushed object supply hole is provided with one pulverized substance constant supply groove connected to the outlet of the supply hole, and the cross-sectional area of the pulverized substance constant supply groove is smaller than the cross-sectional area of the pulverized object supply hole, and The particle size of the pulverized product is made larger than that of the pulverized product, and the pulverized product constant supply groove is extended until it reaches the ground surface on the outer peripheral side of the upper facing surface.
[0008]
In addition, one or a plurality of pulverized material quantitative supply grooves provided on the upper pulverized material quantitative supply surface are provided on the lower pulverized material quantitative supply surface while the mill is rotating. It is preferable to extend the fixed amount supply groove until it reaches a ground surface on the outer peripheral side of the ground material fixed amount supply surface of the lower surface.
[0009]
Also, between the inner peripheral side surfaces of the upper and lower ground surfaces, there is provided a space for storing the pulverized material and pulverized material in which the interval is continuously increased toward the outer peripheral side, and the outer peripheral side surfaces of the upper and lower ground surfaces are in close contact with each other. It is good to.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a longitudinal sectional view of a main part showing a state where piled objects are piled up in a reservoir recess provided in an upper die of a milling tool having a function for supplying a constant quantity of objects to which the present invention is applied (at a position XX in FIG. 2). FIG. 2 is a bottom view of the upper die, and FIG. 3 is a plan view of the lower die. As shown in FIG. 1, this milling die 18 is also a combination of two mortars, for example, stone mortars 19 and 20, which are stacked in a vertical direction, and have slidable surfaces 21 and 22 that overlap in the vertical direction. Further, for example, a mandrel 23 is erected on the upper and lower mating surfaces 21 and 22 at the center of the lower mating surface 22, and a mandrel recess 24 into which the mandrel 23 fits is formed at the center of the upper mating surface 21. To do.
[0011]
However, the central portion 25 (25a, 25b) of the upper and lower sliding surfaces 21, 22 is a ring surface without a groove, is held horizontally and is in close contact, and its outer side is directed horizontally from the inner peripheral side toward the outer peripheral side. Decrease the overall inclination angle of each of them. At that time, as shown in FIGS. 2 and 3, the ring inner surface 26 (26a, 26b) on the inner peripheral side, which is directly outside the central portion 25 of the upper and lower mating surfaces 21, 22, is brought into close contact with each other to determine the crushed material. The ring surface 27 (27a, 27b) on the outer peripheral side which is the outermost side on the supply surface is used as a ground surface. It should be noted that the opposing ground material constant supply surface 26 and the opposing grinding surface 27 are both between concentric circles at the center of the upper and lower surfaces.
[0012]
Accordingly, the upper surface of the upper mill 19 is formed with a funnel-like grain storage recess 28 except for the edge portion, and the grain as a material to be crushed, such as buckwheat, from the entrance 29 provided at the bottom deepest part thereof, the upper and lower surfaces 21 and 22. One supply hole 30 to be supplied to is vertically drilled. At this time, the outlet 31 of the supply hole 30 is provided on the pulverized material constant supply surface 26a, and the supply hole outlet 31 is provided slightly away from the boundary line with the grinding surface 27a. Then, the inclination angle between the pulverized material constant supply surface 26b excluding the central portion 25b of the lower mill 20 and the horizontal direction of the grinding surface 27b is set to, for example, 5 degrees.
[0013]
Further, the laminating surface 22 excluding the central portion 25a of the upper die 20 is also inclined. However, the inclination angle of the ground material constant supply surface 26a with the horizontal direction is equal to the opposing ground material constant supply surface 26b and is, for example, 5 degrees, whereas the ground surface 27a is the inner peripheral side surface 27a corresponding to most of the ground surface 27a. The inclination angle with respect to the horizontal direction is made large and constant, for example, 7.5 degrees. The angle of inclination of the outer peripheral side surface 27a2 near the outermost periphery excluding the inner peripheral side surface 27a1 of the ground surface 27a is set to 5 degrees equal to the inclination angle of the mating surface 22 excluding the central portion 25a of the upper die 20. .
[0014]
As a result, a space 32 is formed between the opposing upper and lower ground surfaces 27 for storing grain grains and coarse and fine pulverized materials. Therefore, the ground surface 27a of the upper mill 19 is equally divided into six surfaces, and one groove 33 (33a,... 33f) is provided on the right boundary of each divided surface. At that time, each boundary groove 33 is provided at a position tangent to the outer circle of the horizontal ring surface 25a provided at the center. Further, for each boundary groove 33, a plurality of, for example, five, grooves 34 parallel to the corresponding dividing surface are spaced apart from each other by a distance of 5 from each other. At that time, both the boundary groove 33 and the parallel groove 34 have substantially the same width and depth.
[0015]
Then, five parallel grooves 34 provided immediately in the left direction of the respective boundary grooves 33 are all extended inward to the vicinity of the center ring position of the pulverized material constant supply surface 26a. At that time, the extension portion 35 of one parallel groove 34 is used as a main groove for supplying the object to be crushed and is connected to the outlet 31 of the supply hole 30. At that time, the width and depth of the pulverized material constant supply main groove 35 are made larger than the groove widths and depths of the other boundary grooves 33 and the parallel grooves 34, and further larger than the particle size of the side being the pulverized material. Then, the cross-sectional area of the pulverized material constant supply main groove 35 becomes larger than the cross-sectional areas of the other boundary grooves 33 and the parallel grooves 34, and the pulverized material and pulverized directly through the supply main groove 35 from the supply hole 30 with the side being left as grains. A fixed amount can be supplied to the object storage space 32. In addition, the parallel groove 34 provided immediately in the left direction of the boundary groove 33b does not extend.
[0016]
Similarly, the ground surface 27b of the lower mill 20 is divided into six sections, and six boundary grooves 36 (36a,... 36f) are disposed there. Similarly, a parallel groove 37 is provided for each boundary line 36. However, the parallel grooves 37 provided immediately in the left direction of the boundary grooves 33 are extended inward every other.
[0017]
When such a milling tool 18 is used, it is not necessary to constantly supply a constant amount of the object to be crushed such as buckwheat by hand, or to install a material to be pulverized constant supply. Therefore, the degree of freedom of installation of the mortar 18 is increased. After the installation, at the time of milling, the soba 38 is piled up as a material to be crushed in the grain storage recess 28 of the upper mill 19. Then, the buckwheat 38 falls from the grain storage recess 28 to the pulverized material supply hole 30 provided vertically, and its outlet 31 is closed by the lower pulverized material constant supply surface 26b. Fill. Moreover, since the buckwheat 38 has a small inclination angle with respect to the horizontal direction of the pulverized material constant supply main groove 35 connected to the outlet 31, the pulverized material and pulverized material connected to the inside of the supply main groove 35 and the supply main groove 35. The inside of the storage space 32 does not go so much.
[0018]
Therefore, in the case of human power, the direction of each groove provided in the upper mill 19 is the right direction, so it rotates to the right. In the case of motor, water wheel, other mechanical power, etc., one of the upper and lower mills 19, 20 is Rotate right. Then, a centrifugal force directed toward the outer peripheral side acts on the buckwheat 38 that has remained in the vicinity of the inlet of the pulverized material constant supply main groove 35. However, the gap between the upper and lower ground material constant supply surfaces 26 is small so that the buckwheat 38 does not pass through, so the buckwheat 38 is not released toward the outer peripheral side. Therefore, the buckwheat 38 gradually moves downward in the pulverized material constant supply main groove 35 having a small inclination angle with respect to the horizontal direction, and fills the main groove completely.
[0019]
Then, for example, by rotating the upper mill 19, the pulverized material constant supply main groove 35 repeats on the extended grooves 37 a (37 a 1, 37 a 2, 37 a 3) of the three parallel grooves 37 provided on the lower pulverized material constant supply surface 26 b. pass. Then, the to-be-ground material fixed supply main groove 35 becomes a distribution groove, and the buckwheat 38 can be periodically distributed to the respective extension grooves 37a by a necessary amount. At that time, the pulverized material constant supply main groove 35 is bent in a substantially horizontal direction with respect to the pulverized material supply hole 30 provided vertically, and the inclination angle thereof is small. Since the area is much smaller, too much buckwheat 38 enters the ground material constant supply main groove 35 and the upper mill 19 is lifted, and the gap between the upper and lower ground material constant supply surface 26 is increased, and the soba 38 is passed through the space. Is not released in the outer peripheral direction.
[0020]
Further, each extended groove 37a serves as a sub-groove for supplying the object to be crushed, so that the buckwheat 38 can be regularly distributed to each of the three divided surfaces having different directions of the vertical grinding surface 27. Further, the buckwheat 38 remaining without being distributed inside the pulverized material constant supply main groove 35 directly enters the pulverized material and pulverized material storage space 32 and is uniformly supplied to the respective divided surfaces of the upper and lower ground surfaces 27. At that time, since the interval between the upper and lower grinding surfaces 27 is continuously reduced from the inner peripheral side to the outer peripheral side in the pulverized object and pulverized substance storage space 32, the inner peripheral side contains a large amount of the pulverized object. On the other hand, as it goes to the outer peripheral side, those objects to be pulverized are also ground at each location such as the inner peripheral side surface 27a of the upper and lower grinding surface 27, and the pulverized material contained in the coarsely pulverized material into the finely pulverized material. The particle size gradually decreases.
[0021]
Finally, the fine pulverized material contained in the storage space 32 is well ground by the outer peripheral side surface 27a2 etc. in close contact with the upper and lower ground surfaces 27, and milling to become a finely pulverized material is performed. It is discharged from the outermost periphery of the surfaces 21 and 22. In this way, when the buckwheat 38 accumulated in the grain storage recess 28 is continuously supplied and milled continuously with the rotation of the upper mill 19, the buckwheat 38 accumulated in the recess 28 naturally decreases.
[0022]
Therefore, if the buckwheat 38 is moderately added, such as when the buckwheat 38 becomes small and the soba 38 is piled up again, it is convenient that the same milling can be continued. In addition, the extended grooves 34a (34a1,... 34a4) of the four parallel grooves 34 other than the ground material constant supply main groove 35 provided on the upper ground material constant supply surface 26a of the upper mill 19 are particularly determined. It is a sweeping groove for sweeping out powder adhering to the supply surface 26a in the outer peripheral direction and keeping the gap between the upper and lower ground material constant supply surfaces 26 small.
[0023]
In the above-described embodiment, one pulverized material supply hole 30 is provided in the pulverized material reservoir recess 28 of the upper mill 19, and the pulverized material constant supply surface 26 a of the upper mating surface 21 is connected to the supply hole outlet 31. Although the case where one pulverized material constant supply main groove 35 is provided has been described, a plurality of pulverized material supply holes are provided in the pulverized material reservoir recess of the upper mortar according to the size of the mortar, the supply amount of the crushed material, and the like. For example, it is possible to provide 2 to 6 pulverized material constant supply main grooves connected to the supply hole outlet for each supply hole on the pulverized material constant supply surface of the upper friction surface.
[0024]
In the above-described embodiment, the inner peripheral side surface 27a1 of the grinding surface 27a provided on the mating surface 21 of the upper die 19 is recessed to form the object to be crushed and crushed material storage space 32. It is also possible to form the object to be crushed and crushed object storage space by making the inner peripheral side surface of the ground surface provided on the surface into a recess.
[0025]
【The invention's effect】
According to the present invention described above, in the first aspect of the present invention , one or a plurality of pulverized material supply holes for supplying the pulverized material to the upper and lower surfaces of the upper die are formed in the vertical direction. The inner peripheral side surface including the outlet of the grinding object supply hole on the grinding surface and the inner peripheral side surface opposite to the lower grinding surface are used as the ground constant quantity supply surface with a small inclination angle with respect to the horizontal direction, The gap between the ground material constant supply surface is reduced so that the material to be ground is not discharged from the outlet of the feed hole to the outer peripheral side through the gap during rotation of the mortar. By providing one pulverized material quantitative supply groove connected to the outlet of the supply hole, the outlet of the pulverized material quantitative supply hole can be closed by the lower pulverized material quantitative supply surface and communicated with the pulverized material supply hole. The fixed quantity supply groove can be extended substantially horizontally.
[0026]
Then, the cross-sectional area of the ground material constant supply groove is made smaller than the cross-sectional area of the ground material supply hole and further larger than the particle size of the ground material, and the ground material constant supply groove By extending until reaching the ground surface on the outer peripheral side, the material to be crushed is filled in the supply hole of the upper die, and even if the material to be crushed is subjected to centrifugal force by the rotation of the mortar, the material to be crushed is supplied quantitatively A large amount is not supplied into the groove in a short time, and a fixed amount can be sequentially supplied to the upper and lower ground surfaces through the supply groove. Accordingly, it is not necessary to manually supply the object to be crushed and to install the object to be pulverized constant supply, and the degree of freedom for installing the milling tool is increased.
[0027]
According to the second aspect of the present invention, one or a plurality of pulverized material quantitative supply grooves are provided on the lower pulverized material quantitative supply surface, which faces the pulverized material quantitative supply groove provided on the upper pulverized material quantitative supply surface while the mill is rotating. By providing this, the material to be crushed is periodically fed to the ground material feed groove provided on the lower ground material feed surface from the ground material feed groove provided on the upper ground material feed surface during the mill rotation. Distribute and supply division surface in a different direction from the supply division surface by the upper ground material fixed supply groove on the upper and lower ground surfaces on the outer peripheral side of the upper and lower ground material fixed supply surface through the lower ground material fixed supply groove It is possible to supply a fixed amount of the material to be ground. Therefore, the material to be crushed can be dispersed on the upper and lower ground surfaces, and good milling can be performed.
[0028]
Further, in the invention according to claim 3, between the inner peripheral side surfaces of the upper and lower ground surfaces, there is provided a space for storing the pulverized material and pulverized material in which the distance between the inner peripheral side is large and the inner peripheral side is continuously reduced toward the outer peripheral side. By closely contacting the outer peripheral surface of the surface, the object to be crushed and the crushed object are provided in the space between the inner peripheral side surfaces of the upper and lower ground surfaces, and the pulverized object is sequentially crushed from the inner peripheral side toward the outer peripheral side. A large amount of fine and finely pulverized material is collected, and the material to be crushed and coarsely pulverized material are sequentially crushed on the inner peripheral side surface to obtain a finely pulverized material. Milling can be performed satisfactorily by making a finely pulverized product.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a main part (corresponding to the position XX in FIG. 2) showing a state in which crushed materials are piled up in a storage recess of a mortar having a function for supplying pulverized materials to which the present invention is applied. is there.
FIG. 2 is a bottom view of the same die.
FIG. 3 is a plan view of the lower mill.
FIG. 4 is a vertical cross-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 an upper mill of a conventional mortar or is fed using a pulverized material quantitative supply device. .
FIG. 5 is a bottom view of the same die.
FIG. 6 is a plan view of the lower die.
[Explanation of symbols]
18 ... Muscle 19,20 ... Upper and lower mortars 21,22 ... Upper and lower grinding surfaces 23 ... Spindle 24 ... Center receiving recess 25 ... Upper and lower central horizontal ring surface 26 ... Upper and lower ground material supply surface 27 ... Upper and lower grinding surface 28 ... Subject Pulverized material reservoir recess 29 ... Inlet 30 ... Milled material supply hole 31 ... Outlet 32 ... Milled material and pulverized material storage space 33, 36 ... Boundary groove 34, 37 ... Parallel groove 34a ... Sweeping groove 35 ... Matter to be crushed Constant feed main groove 37a ... Substance to be crushed constant feed sub groove

Claims (3)

Each has an upper and lower overlapping surface, and a mandrel is erected at the center of one of the upper and lower rubbing surfaces, and a mandrel recess into which the mandrel fits is drilled at the other center. The upper and lower surfaces are each provided with a ground surface in which a large number of grooves are distributed on the outer peripheral side of the upper and lower mating surfaces. One or a plurality of pulverized material supply holes for supplying the pulverized material to the upper and lower surfaces of the upper mortar are drilled in the vertical direction, and the outlet of the supply hole is the inner periphery of the upper surface. A mortar provided on a side surface, wherein an inner peripheral side surface including the outlet of the material to be crushed on the above-described upper facing surface and an inner peripheral side surface opposite to the lower facing surface are covered with a small inclination angle with respect to the horizontal direction. The pulverized material feed plane is the crushed material constant supply surface, and the crushed material is rolled in the gap between the pulverized material constant supply surface that overlaps the upper and lower sides. It is made small so that it is not discharged from the outlet of the supply hole to the outer peripheral side through the gap, and the pulverized substance constant supply groove connected to the outlet of the supply hole is connected to the pulverized substance constant supply surface for each of the pulverized substance supply holes. One is provided, and the cross-sectional area of the pulverized material constant supply groove is made smaller than the cross-sectional area of the pulverized material supply hole and further larger than the particle size of the pulverized material. A mortar having a function of supplying a constant quantity of material to be crushed, which extends until reaching the ground surface on the outer peripheral side of the surface.   One or a plurality of pulverized material quantitative supply grooves are provided on the lower pulverized material quantitative supply surface while the crushed material quantitative supply surface faces the upper pulverized material quantitative supply surface while the mill is rotating. 2. The milling die having a grinding object quantitative supply function according to claim 1, wherein the groove is extended until it reaches a ground surface on the outer peripheral side of the ground grinding material supply surface of the ground surface.   Between the inner peripheral side surfaces of the upper and lower ground surfaces, a space for storing the pulverized material and pulverized material whose inner peripheral side is continuously increased toward the outer peripheral side is provided, and the outer peripheral side surfaces of the upper and lower ground surfaces are in close contact with each other. 3. An mortar having a function of supplying a constant quantity of the object to be ground according to claim 1 or 2.

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