JP2005081220A - Lower bed stone rotation type mill - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lower bed stone rotation type mill capable of uniformly and finely pulverizing a material to manufacture pulverized material of excellent quality. <P>SOLUTION: A material supply hole 10 is formed at the center of a mano 2, a tip part 23 of a rotary shaft 20 provided at the center of a bed stone 3 is protruded from a lower grinding surface 21, and the tip part 23 of the rotary shaft is inserted in a lower hole 12 of the material supply hole 10. A material supply space 24 is formed around the tip part 23 of the rotary shaft with an inner surface of a lower hole 12 of the material supply hole 10 by a predetermined distance from an outer surface of the tip part 23 of the rotary shaft, and a material scraping projecting part 22 is provided on the tip part 23 of the rotary shaft. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an mortar that grinds various grains, tea, and other objects to be ground.

  Conventionally, when milling various types of grains such as rice, wheat, buckwheat, beans, etc., a milling tool that combines two stone mills one above the other is used as a device that does not generate a lot of heat and does not impair the flavor. It has been. And this mortar is used as a pulverizer which grinds the soybeans which were crushed at the time of manufacture of tofu, and the raw material (bean soup) is manufactured. However, the production of mortar with a mortar is low in production efficiency and labor-intensive. Therefore, today, a grinder that rotates at a high speed is used instead of the tool, and the tool is hardly used.

  Certainly, the grinder has high production efficiency and is suitable for mass production, so it can provide tofu to consumers at low cost. However, when soybeans crushed by a grinder are ground, a greater mechanical force is applied to the soybeans than in the case of a mortar. Then, the soybean fiber is shredded, the calorific value is increased, and the ground soybean is altered by heat. Therefore, the tofu produced by the grinder does not have the taste of millet tofu and does not taste like real tofu.

Therefore, in order to provide the taste of real tofu, the making of tofu with a mortar has been reviewed. Such a milling tool for crushing a material to be crushed is usually a combination of two stone mills stacked one above the other, and has a mating surface that overlaps the top and bottom. The upper and lower surfaces of the upper and lower surfaces are all ring-shaped grinding surfaces in which a large number of eyes are dispersed, except for the central portion, and a mandrel is centered on one of the upper and lower surfaces. Standing up, a center receiving recess in which the mandrel fits in the center is drilled in the upper mating surface.

  The upper and lower surfaces are continuously lowered from the inner peripheral side to the outer peripheral side, respectively, and the inclined angle with the horizontal direction of the upper combined surface is excluded except for the vicinity of the outermost peripheral surface. A little larger than the inclination angle. However, the inclination angle near the outermost periphery is made equal to the inclination angle of the lower surface. As a result, a space (container) for storing the object to be crushed and its coarse and fine pulverized material is formed between the upper and lower surfaces. Therefore, the upper die is formed with a recess for storing the object to be crushed except for the edge on the upper surface, and a supply hole for supplying the object to be crushed from the entrance provided at the bottom of the recess to the upper and lower surfaces is provided. To do. At that time, the discharge port of the supply hole is provided close to the inner peripheral side of the upper laying surface, and the pulverized material reservoir recess and the crushed material storage space are communicated. Therefore, if the material to be crushed is dropped from the supply hole while rotating the upper die, the space between the upper and lower surfaces forming the storage space for the crushed material is gradually narrowed from the inner circumference side toward the outer circumference side. In addition, the object to be crushed can be crushed because it is in close contact near the outermost periphery.

Japanese Patent Application No. 2002-017772 Japanese Patent Application No. 2002-219909

  However, in such a tool, a center recess is provided at the center of the upper face of the upper die (lower surface), and the lower end face (upper surface) of the mandrel fixed to the center of the lower die in the center recess. The protruding tip is fitted. For this reason, since the to-be-ground material supply hole cannot be provided at the center of the upper die, the supply hole is provided apart from the center. Then, it is impossible to make a ground surface by making an eye near the center of the upper and lower surface. Therefore, the area of the ground surface provided on the upper and lower surfaces cannot be increased, the distance to grind the material to be ground is shortened, and it is difficult to uniformly finely grind the material to be ground.

  The present invention has been made paying attention to such conventional problems, and an object of the present invention is to provide a lower mill rotary milling tool capable of producing a high-quality pulverized material by uniformly pulverizing the material to be pulverized. To do.

  In order to achieve the above-mentioned object, the lower mill rotary milling tool according to the present invention combines upper and lower dies each provided with a grinding surface in which a number of eyes are distributed on the upper and lower overlapping surfaces, and the upper die is ground. A material inlet is provided on the top surface, a discharge port with material distribution is provided on the top surface, a material supply hole for supplying the material to be ground to the top and bottom surface is drilled, and the upper die is fixed. Then, set the lower die to be rotatable.

  Then, an object supply hole is provided at the center of the upper die, the tip of the rotary shaft provided at the center of the lower die is protruded from the lower surface, and the tip of the rotary shaft is inserted into the object supply hole. Inserted into the lower hole, the inner surface of the lower hole of the object to be crushed is separated from the outer surface of the tip of the rotating shaft by a predetermined distance to form a material supply space around the tip of the rotating shaft, and further rotated An object scraping protrusion is provided at the tip of the shaft.

Further, the hole diameter of the lower hole is made larger than the upper hole of the above-mentioned pulverized material supply hole, and further, the lower hole is greatly expanded downward, and the tip of the rotating shaft tip fitted into the lower hole is made conical, It is preferable to provide an object scraping protrusion that extends from the base end side to the tip end side on the inclined surface of the conical tip.

  As an effect of the present invention, according to the first aspect of the present invention, by providing a material supply hole in the center of the upper mill, each of the ground surfaces provided with eyes up to the vicinity of the center on the upper and lower surfaces of the upper and lower mills, respectively. It can be formed and the area of each ground surface can be increased to increase the distance for grinding the object to be crushed. In addition, by providing a scraping protrusion at the tip of the rotating shaft that fits into the lower hole of the grinding object supply hole, the grinding object that falls into the lower hole of the grinding object supply hole is removed from the tip of the rotating shaft. Scraping material scraping protrusions rotating from the ground material supply space formed around the part sequentially scrape out, and can be smoothly supplied to both ground surfaces through the discharge port and the material distribution. Therefore, the pulverized material can be efficiently and uniformly finely pulverized to produce a high-quality pulverized material.

  According to the second aspect of the present invention, the diameter of the lower hole is made larger than the upper hole of the pulverized material supply hole, and the lower hole is further expanded downward to be fitted into the lower hole. By making the tip of the part conical, the falling movement of the object to be crushed in the supply hole is smoothly guided along the slope of the conical tip, and the base end provided on the slope of the conical tip It can be scraped out by the scraping protrusions to be crushed extending from the side to the tip side, and can be supplied more smoothly to both ground surfaces. Therefore, a finely pulverized product can be produced by more efficiently and uniformly pulverizing the material to be pulverized.

Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS.
FIG. 1 is a longitudinal sectional view showing a main part of a lower mill rotary milling tool for manufacturing to which the present invention is applied, FIG. 2 is a front view of the lower mill rotary milling tool, and FIG. It is a rear view. This lower mill rotary milling tool 1 is a milling machine main body 4 composed of stone mills 2 and 3 combined one above the other, and an installation table on which the milling machine main body 4 is placed, and houses a driving device for applying driving force to the milling machine main body 4. The drive device storage box 5, a controller box 7 with an operation unit provided on a column 6 erected on the top left corner of the top plate of the drive device storage box 5, and a hopper 8 that rides on the upper die 2. In addition, casters 9 are attached to the four corners of the bottom of the drive device storage box 5 in order to make it easy to move the tool 1.

  The upper die 2 is a disc body as shown in FIGS. 4 and 5, and a through-hole 10 for supplying an object to be crushed is provided at the center thereof. At that time, the hole diameter of the lower hole 12 is made larger than the upper hole 11 of the pulverized material supply hole 10, and the lower hole 12 is larger in the lower part, and is further greatly expanded particularly near the opening. Then, the central opening of the upper surface 13 is used as the material inlet 14 and the central opening of the upper mating surface (lower surface) 15 is used as the discharge port 16. Further, the upper balancing surface 15 is provided with deformed circular material distributions 17 (17a, 17b) communicating with the inside of the lower hole 12 of the material supply hole 10 at symmetrical positions on both sides of the discharge port 16, respectively. Further, a large number of protrusions 18 for eyes are dispersedly disposed on the entire surface excluding the discharge port 16 and the distribution 17 near the center of the upper facing surface 15 of the upper mill 2 to form a ground surface. Then, the area of a grinding surface can be enlarged and the distance which grind | pulverizes a to-be-ground object can be lengthened.

As shown in FIGS. 6 and 7, the lower die 3 installed under the upper die 2 is also formed into a disk body, and a through hole 19 is provided at the center thereof. However, the through hole 19 is a through hole for a shaft through which the rotary shaft 20 is inserted and fixed. Then, a large number of eye ridges 18 are distributed over the entire surface of the lower mortar 3 except for the central opening of the lower surface (upper surface) 21 to form a ground surface. Then, the area of the ground surface can be increased, and the pulverization distance of the object to be pulverized can be increased.

  The rotary shaft 20 provided at the center of the lower mill 3 has a conical tip, and the projecting length from the inclined surface is equal to the inclined surface of the conical tip from the proximal end to the distal end. The part 22 is extended. And as shown in FIG. 8, it equips with the front-end | tip part 23 of the rotating shaft 20 projecting upwards from the center of the lower alignment surface 21. As shown in FIG.

  Then, when the upper and lower mortars 2 and 3 are overlapped, the rotary shaft tip portion 23 is inserted into the lower hole 12 of the material supply hole 10, and the inner surface of the lower hole 12 extends from the outer surface of the rotary shaft tip portion 23. The object supply space 24 can be formed around the rotation shaft tip 23 at a predetermined distance. Further, the crushed material scraping protrusion 22 can be arranged in the pulverized material supply space 24, and the crushed material can be scraped out from the pulverized material supply space 24 by the protrusion 22.

  In the drive device housing box 5 in which such a mortar body 4 is installed, as a drive device, a geared motor that applies a drive force for vertical movement to the upper die 2 and a drive force for rotation to the rotary shaft 20 of the lower die 3 are provided. Accommodates with a geared motor to give. Then, the upper die 2 can be moved up and down and can be reversed. Therefore, the horizontal shafts 25 (25a, 25b) projecting in the horizontal direction on the left and right sides are provided at the left and right centers of the side surface of the upper mill 2, respectively. Each horizontal shaft 25 of the upper die 2 is supported by a gate-shaped member 26 (26a, 26b) that protrudes upward through the vicinity of the left and right edges of the top plate of the drive device housing box 5.

  The horizontal shaft supporting gate-shaped member 26 has two driving force transmission vertical axes 27 that are vertically separated from each other in the front-rear direction, and a horizontal axis that supports the horizontal shaft 25 by being installed on the upper ends of both vertical axes 27. It comprises a support erection member 28. Then, the horizontal axis supporting portal member 26 is erected in the vicinity of the left and right edges of the top plate of the drive device storage box 5, and the vertical axis guiding portal member 29 (29a, 29a, 29) that guides the vertical movement of each vertical axis 27 29b). Each horizontal shaft 25 is provided with an upper die reversing joint 30 (30a, 30b) that enables the upper die 2 to be horizontally fixed and reversed.

  The operation unit facing the front of the controller box 7 includes a dial 31 with a scale of a lower mill rotational speed setting switch at the lower center, a push button 32 of a lower mill drive switch on the left and right of the dial 31, and a water pump start switch. Push button 33, an upper and lower mortar position display panel 34 for displaying the distance between the upper and lower mating surfaces 15 and 21 of the main body 4 on the upper side of the dial 31, and an upper die raising switch push button 35 on the upper right and lower of the panel 34. The push button 36 of the upper die lowering switch is provided facing the outside. Further, in order to store the material to be crushed in the hopper 8 placed on the upper die 2 and supply it to the main body 4, the diameter of the upper opening 37 and the internal space 38 are enlarged, and the supply port portion 39 at the lowermost portion is narrowed. A funnel-shaped cylindrical body in which the diameter of the lower opening 40 is reduced is used. The hopper 8 is provided to the mortar body 4 by inserting the supply port 39 into the upper hole 11 of the material supply hole 10 of the upper mortar 2.

  When setting the distance between the upper and lower mortars 2 and 3, it is necessary to finely adjust the position of the upper mortar 2, so the fine adjustment handle is positioned closer to the lower edge of the left wall surface of the drive device housing box 5. Prepare for. In addition, a hydration tank 42 for supplying water to the hopper 8 at the time of manufacture is provided on the back side of the drive device storage box 5.

  In the case of manufacturing a rice with such a lower mill rotary mill 1, after the power switch is turned on, the interval between the upper and lower mating surfaces 15 and 21 of the mill body 4 is set. At this time, when the button 35 is pressed, a geared motor for up-and-down movement of the upper die is activated, and the vertical shaft 27 of the double-portion-shaped member 26 that supports the horizontal shaft 25 of the upper die 2 is connected from the geared motor through the connecting mechanism. The driving force in the upward movement direction is transmitted, and each vertical axis 27 is moved upward to raise the upper die 2. When the button 35 is pressed again, the geared motor is stopped. Therefore, the upper die 2 can be stopped at a position where it is lifted from the lower die 3 by a required height, and the upper die 2 can be fixed. . In addition, even if the upper die 2 is not pressed to turn off the button 35, the upper die 2 is provided with a limit switch so that it does not rise above a certain height.

  When the button 36 is pressed, a gear motor for up-and-down movement of the upper die is activated, and a driving force in the downward movement direction is transmitted from the geared motor to each of the vertical axes 27. 2 can be lowered. When the button 36 is pressed again, the geared motor is stopped, so that the height of the upper mill 2 can be selected and stopped. However, even if the upper die 2 does not push the button 36 for turning off when it is lowered, the upper die 2 stops when the distance between the upper and lower alignment surfaces 15 and 21 becomes 1 mm, for example, by the operation of the provided limit switch. Then, the distance between the upper and lower mating surfaces 15 and 21 is displayed on the upper and lower die position display panel 34.

  Therefore, after the interval between the upper and lower surfaces 15, 21 is 1 mm, the fine adjustment handle 41 is operated by hand, the interval between the upper and lower surfaces 15, 21 is set to 0.05 mm, for example, and the upper die 2 is Fix it. Then, even if the lower mill 3 is rotated, the upper and lower mating surfaces 15 and 21 do not come into contact with each other, and wear of the eye ridges 18 due to empty grinding does not occur. Next, the dial 31 is rotated to set the number of rotations of the lower mill 3. Then, the rotation speed of the geared motor can be controlled by changing the frequency by the inverter used as the lower mill rotation speed setting switch in correspondence with the indicated value of the dial 31. For example, the geared motor is a combination of a 1800 rpm motor and a gear capable of reducing the rotational speed of the motor to 1/120.

  Next, soybeans soaked in water as a material to be crushed are put into the hopper 8, the button 33 is pressed, and the hydration pump is activated. Then, the button 32 is pressed to activate the lower mill rotation geared motor. At that time, by pressing the button 32 and setting so that the lower mill 3 starts to rotate after 1 to 2 seconds, the feed port 39 of the hopper 8 enters the lower hole 12 of the material supply hole 10. The falling soy contains enough water.

  In this way, when the upper die 2 is fixed and the lower die 3 is rotated, the diameter of the lower hole 12 is larger than the upper hole 11 of the object supply hole 10 provided at the center of the upper die 2, and the lower portion is further lowered. The hole 12 is larger in the lower part, particularly in the vicinity of the discharge port 16, and the tip of the rotary shaft tip 23 fitted into the lower hole 12 is conical, and the inner surface of the lower hole 12 is the tip of the rotary shaft. The fall of the soft soybeans supplied to the lower hole 12 of the supply hole 10 by forming a crushed material supply space 24 around the rotation shaft tip 23 at a predetermined distance from the outer surface of the part 23. The movement can be smoothly guided along the slope of the conical tip.

  In addition, the soybean to be supplied into the lower hole 12 is sequentially scraped from the ground material supply space 24 by the ground material scraping protrusion 22 extending from the base end to the front end provided on the inclined surface of the conical tip, 16 and the distribution 17 can be smoothly supplied to both ground surfaces. Therefore, it is possible to produce a high-quality rice by pulverizing soybeans with a large area and a fine grinding surface with a long grinding distance efficiently and uniformly.

  Such balls are discharged to the outside from the outermost periphery of the upper and lower mating surfaces 15, 21 and fall into the receiving tray 43 surrounding the lowermost part of the lower mill 3, and are guided from there and stored in another container. Finally, the rice remaining in the receiving tray 43 is scraped off to the lower die 3 and attached with a brush to be rotated several times for cleaning. In addition, in order to clean the dust remaining on the upper and lower surfaces 15, 21, after raising the upper die to a required height, the reversing joint 30 is operated to invert the upper die 2 so that it is fixed and washed with water. To do.

  In the above embodiment, the case where the lower mortar rotary milling tool according to the present invention is applied to the manufacture of the rice has been described. However, by changing the material distribution, eyes, packing, etc. according to the material to be crushed, rice, wheat, buckwheat It can also be applied to a mortar that grinds various grains such as cereals, tea and other crushed objects.

It is a longitudinal cross-sectional view which shows the principal part of the lower mill rotary type milling tool for manufacture to which this invention is applied. It is a front view of the same lower dies rotation type tool. It is a rear view of the same lower mortar rotary type tool. It is a longitudinal cross-sectional view (XX sectional drawing of FIG. 5) of the upper mill which comprises the same lower mill rotation type tool.

It is a bottom view of the same die. It is a longitudinal cross-sectional view (YY sectional drawing of FIG. 7) of the lower die which comprises the same lower die rotary type | mold die. It is a top view of the lower mill. FIG. 6 is a perspective view of the vicinity of a lower mating surface showing a protruding state of a distal end portion of a rotary shaft provided in the lower mill.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Lower mortar rotary type mortar 2, 3 ... Upper / lower mortar 4 ... Tooling machine main body 5 ... Drive apparatus accommodation box 7 ... Controller box with an operation part 8 ... Hopper 10 ... Ground supply hole 11 ... Upper hole 12 ... Lower hole 13 ... Upper surface 14 ... Input port 15, 21 ... Top and bottom mating surface 16 ... Discharge port 17 ... Distributing material 18 ... Eye projection 19 ... Shaft through hole 20 ... Rotating shaft 22 ... Grinding object scraping projection 23 ... Tip 24 ... Ground supply space 25 ... Horizontal axis 26 ... Horizontal axis support portal member 27 ... Driving force transmission longitudinal axis 28 ... Horizontal axis support installation member 29 ... Vertical axis guide portal member 30 ... Upper mill reversal joint 31 ... Bottom Dial with mortar rotational speed setting scale 32 ... Lower die drive push button 33 ... Hydropump activation push button 34 ... Upper and lower die position display panel 35 ... Upper die up push button 36 ... Upper die lower push button 37, 40 ... Up Lower opening 38 ... Internal space 39 ... Supply port 41 ... Fine adjustment handle 42 ... Water tank

Claims (2)

Combining upper and lower mortars each provided with a grinding surface in which a number of eyes are distributed on the upper and lower overlapping surfaces, the upper mortar is provided with an inlet for the material to be crushed on the upper surface, and the discharge port with the distribution is raised. A lower mill rotary milling tool that is provided on the mating surface, drilled with a milling material supply hole that feeds the milled material to the upper and lower mating surfaces, fixed the upper die, and rotatably installed the lower die. The object to be crushed is provided at the center of the upper die, the tip of the rotating shaft provided at the center of the lower die is protruded from the lower surface, and the tip of the rotating shaft is provided to the object to be crushed. The inner surface of the lower hole of the crushed object supply hole is separated from the outer surface of the rotating shaft tip by a predetermined distance to form a pulverized material supply space around the rotating shaft tip. A lower mill rotary milling tool, characterized in that a crushed object scraping projection is provided at the tip of the rotary shaft. The diameter of the lower hole is made larger than the upper hole of the material supply hole, and the lower hole expands further downward, and the tip of the rotating shaft that fits in the lower hole is made conical, and the tip of the conical tip is The lower mortar rotary type mortar according to claim 1, wherein a crushed object scraping protrusion extending from the proximal end side to the distal end side is provided on the slope.

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