JP3503000B2 - Crusher - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] In addition to tea, crushing for crushing cereals such as sesame and barley, minerals such as ceramics and rocks to an appropriate particle size (fineness). The improvement of the machine. [0002] Tea is not only a specialty product but also a popular health food. Tea is rich in vitamins and minerals, and simply serving tea as it is with hot water will leave most of the above-mentioned nutrients in the tea, making it impossible to take in nutrients. Therefore, if the tea is made into powdered tea, and the tea is served with hot water, the above-mentioned nutrients can be sufficiently taken. At present, a stone mill is generally used as a crusher for converting leaf tea into powdered tea. [0004] However, in the above-mentioned stone mortar, since the opposing crushing surfaces of the upper mill and the lower mortar are flat to each other, the residence time on the crushing surface is shortened, and powdered tea of an appropriate particle size is obtained. Was not able to be done. As a solution to this problem, it is conceivable to lengthen the pulverization process by using a large diameter to increase the residence time.However, such a method inevitably increases the size of the apparatus and also requires a large driving power. It is not preferable because something is required. On the other hand, in the case of conventional stone mortars, the crushed material adheres to the crushing surface of the mortar, so that it is difficult to remove the mortar from the mortar even after the completion of the crushing. In addition, the material to be treated, which was introduced from the material inlet, was not smoothly guided to the grinding surface, so that the grinding efficiency was not so high. In addition, the millstone was significantly worn depending on the material, and was often easily chipped due to collision or the like. In addition, the stone mortar has a problem that it is expensive and requires technical skill because it is manufactured by processing natural stone such as granite. SUMMARY OF THE INVENTION [0006] The present invention is directed to solving the above-mentioned problems at once, and a first invention is to provide a lower mill having a mortar-shaped crushing surface and a crushing surface. An upper mill that matches the grinding surface of the lower mill, a drive device for rotating the upper and lower mills or one of the mills, and a type of the workpiece and a desired particle size.
Therefore, a pulverizer including an angle changing device for changing the above-mentioned two mortars from a horizontal state to an arbitrary angle of approximately 90 degrees before and after.
Around the lower mill from the joint end face of both mills.
Place a pan to receive the crushed material
In a state where the upper and lower mortars are tilted back and forth,
The present invention proposes a pulverizer characterized by providing an outlet located below each. An embodiment of the present invention will be described below with reference to FIGS. 1 to 11. In the figure, reference numeral 1 denotes a pulverizer, which is a table type as an example. 2 is a metal having a mortar-shaped crushing surface 2a,
A metal lower mill made of ceramics or a crushed surface 2a coated with a ceramic member having excellent wear resistance and heat resistance. In addition, a shaft hole 2b having a through hole is formed at the center, and the upper surface thereof is formed. On the 2c side, there is formed a crushing surface 2a composed of a main groove 2d composed of a plurality of parallel grooves and a sub-groove 2e whose direction is changed with respect to the main groove 2d. In addition, reference numeral 3 denotes a grinding surface 3a which coincides with the grinding surface 2a of the lower mill 2, and the upper end 3f of which is connected to the upper end 2 of the lower mill 2.
The upper mill is made of metal, ceramics or a metal coated with a crushed surface 3a, like the lower mill formed slightly shorter than f. The middle mill passes through the upper surface 3e side and the lower surface 3g side. In addition to the shaft hole 3h, a material input port 3i formed of a through hole is formed at an adjacent position, and a plug made of rubber or synthetic resin or the like is provided in the port 3i so that the input material does not spill out of the die during grinding. 4 is detachably inserted. 3a is a crushing surface formed on the lower surface 3g side facing the crushing surface 2a of the lower mill 2, and the main grooves 3d and the sub-grooves 3e are alternately formed over the entire circumference as in the case of the lower mill 2. . 3j is a crushing surface 3 from the lower end 3i 'of the material inlet 3i in accordance with the rotation direction of the mortar (in this case, the upper mortar).
5A shows an arcuate material guide groove formed so as to reach a. Reference numeral 5 denotes a fixed mounting base on which the lower mill 2 and the tray 6 are mounted on the upper surface 5a side by screws 7, and 8 denotes a driving device mounted on the lower surface 5b side of the fixed mounting base 7 by screws (not shown). This is a motor with an AC speed reducer that is configured to rotate the upper mill 3 at an arbitrary low speed of, for example, 30 rpm to 200 rpm. 8a is a motor 8
Is a rotating shaft protruding upward from the projection, and a projection 8 formed on the peripheral surface.
b is fitted into the fitting groove 3k of the shaft hole 3h of the upper mill 3 so as not to run idle, so that the output of the rotating shaft of the motor is reliably transmitted to the upper mill. Reference numeral 9 denotes a tightening screw for connecting the rotary shaft 8a and the upper mill 3. Reference numeral 10 denotes a support table for table-top installation, and reference numeral 12 denotes a motor 8 provided with a speed reducer by fitting the lower portion 8c side thereof.
Storage case 11 for integrally mounting the table 8, the upper and lower dies 3, 2, the fixed mount 5, and the pan 6 to the support 10.
The upper and lower dies 3, 2 attached to the support base 10 are substantially at 0 degrees to 18 degrees.
This is an angle changing device for changing the angle to an arbitrary angle within a range of 0 degrees. The device is screwed into a screw hole 10a of a support base 10 as shown in FIG. A support pin 13 which is inserted into the support hole 12a and rotatably supports the storage case 12 and the like around the pin 13.
And screwed into the screw hole 10c on the side surface of the support base 10 located below the support pin 13 and the tip 14a is engaged with (contacted with) the angle changing groove 12b formed on the side surface of the storage case 12. And an angle changing pin 14 for changing and setting the storage case and the like to an arbitrary angle. The angle changing groove 12b has a shallow groove-shaped guide portion 12c and a guide portion 12c.
And a deep groove-shaped fixing portion 12d formed at predetermined intervals at a predetermined interval.
4 along a locus. Note that the angle changing device 11 is not limited to the above, but a screw tightener that can continuously and finely change the angle by forming a guide groove 12b having only a shallow groove-shaped guide portion as shown in FIG. It can also be implemented by changing the angle by using a gear type or a latch type for the rotating part (support pin part) or even the rotating part (support pin part). FIG. 9 shows another embodiment of the present invention. As shown in FIGS. 10 and 11, the upper mill 3 and the lower mill 2 have the same diameter, and the crushing surfaces 3a, 2a The angle of inclination of the screw is slightly smaller than that of the above-described embodiment, and furthermore, the screw is mounted so that the upper mill 3 can be easily removed by lifting up the same, so that the upper mill 3 does not run idle on the rotating shaft 8a. The difference is that they are not tightened, but the other structures are substantially the same. Next, the use state of the above-mentioned pulverizer will be described. When a power source (not shown) is turned on, the motor 8 with a speed reducer starts, and the rotating shaft 8a of the motor rotates at a constant low speed. In this state, the tea leaves a to be processed are introduced from the material introduction port 3i. The introduced leaf is guided to the crushing surface 3a through the material guide groove 3j by the centrifugal force accompanying the rotation of the mortar.
The leaf a further moves in or on the groove while being crushed or crushed by the intersection and sliding of the main grooves 3d and 2d and the sub grooves 3e and 2e of the upper and lower dies 3, 2 by the rotation of the upper mill 3, and the radial direction. Move toward the outer peripheral side. In this case, since the crushing surfaces 3a, 2a of the upper and lower mortars are in the shape of a mortar,
The leaves stay for a long time as they move up and down the grinding surface, and are gradually pulverized while moving toward the outer periphery. After the pulverization is completed, the angle of the upper and lower mills in the horizontal state of FIG. 1 is changed by the angle changing device 11 to an arbitrary angle, for example, from the horizontal state of FIG. 1 to 60 degrees as shown in FIG. The angle can be changed to any angle from the state of FIG. 1 to approximately 90 degrees before and after, and the change is performed by turning the angle changing pin 14 in a loosening direction. That is, when the change pin 14 is turned, the angle change groove 12 on the side surface of the storage case 12 is turned.
The distal end 14a of the pin located at the fixing portion 12d of FIG. 2b is separated from the pin, so that the storage case 12 can be changed to an arbitrary angle. When the angle change is completed, the change pin 14 is retightened to fix the angle. When the mortar is rotated again, the powdered tea that has already been pulverized is smoothly discharged out of the mortar through the gap between the joint end surfaces 2n and 3n of the mortar with the rotation of the mortar, and once falls into the saucer 6, Further, due to the inclination, the tray 6 is discharged out of the machine from the door-like outlet 6a of the tray 6 located at the lowermost position. In the above description, the crusher 1 is set on a desk and the mortar is driven with the mortar being horizontal. However, the crusher can be crushed from the beginning. In this case, the larger the inclination (change) angle, the shorter the residence time of the object to be processed on the pulverized surface, and the coarser the particle.
Further, if the retention time is lengthened by keeping the mill horizontal, fine pulverization becomes possible. Therefore, if the inclination angle is changed in accordance with the type of the object to be processed and the desired particle size, the particle size can be appropriately adjusted at the time of pulverization. Such crushing conditions are substantially the same not only for leaf tea but also for other cereals and minerals.In addition, the crusher is not limited to the type in which the upper mill is rotated, and conversely, the lower mill is rotated to rotate the upper mill. Or the type of rotating both the upper and lower mortar together, and the size is not limited to the tabletop type. It does not matter if it does not deviate. In the crusher having the above structure, when crushing an object to be processed, for example, leaf tea (object to be processed), the opposing crushing surfaces of the upper and lower mortars are flat as in the prior art. Since it is not in shape but in a mortar shape, the residence time (crushing process) can be lengthened without increasing the diameter of the mortar so much, and a powdered tea (processed product) with uniform and fine particle size can be reliably produced. be able to. Since the mill can be changed to any angle,
By changing the angle and crushing, the residence time of the material to be processed on the crushing surface can be adjusted, and powdered tea (processed material) having a desired particle size can be easily obtained. The powdered tea (processed product) remaining on the crushed surface of the mill after milling is changed from the joint end face of the upper and lower mills to the outside of the mill by rotating the upper mill after changing the angle of the mill. Since the tray is provided with an outlet located at the lowermost position when the tray is inclined, powder tea (processed material) can be easily taken out of the machine. [0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a crusher of the present invention. FIG. 2 is an enlarged view of a main part of FIG. FIG. 3 is a top view of the lower mill of FIG. 1; FIG. 4 is a bottom view of the upper mill. FIG. 5 is a plan view of the crusher of FIG. 1; FIG. 6 is a front view of the crusher in a state where the angle is changed; FIG. 7 is a side view of the angle changing device. FIG. 8 is a front view of a crusher showing another embodiment of the present invention. FIG. 9 is a sectional view of a main part of a crusher showing another embodiment of the present invention. FIG. 10 is a top view of the lower mill of FIG. 9; FIG. 11 is a bottom view of the upper mill. [Description of Signs] 1 crusher 2 lower mill 2a crushing surface 2n joining end surface 3 upper mill 3a crushing surface 3i material input port 3j material guide groove 3n joining end surface 6 receiving tray 6a take-out port 8 drive device (motor with reduction gear) 11) Angle changing device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B02C 7/04 B02C 7/11 B02C 7/12

Claims (1)

(1) A lower mill (2) having a mortar-shaped crushing surface (2a), and a crushing surface (3a) having a crushing surface (2) of the lower mill (2).
Upper mill (3) that matches a) and upper and lower mills (3), (2)
Or a drive device for rotating one of the dies (8)
When the type and desired the both die by particle size of the workpiece (3), (2) at a consisting of the angle changing device for changing the arbitrary angle until before Koryaku 90 degrees from the horizontal state grinder
There, Ryousu the periphery of the lower die (2) (2), the joint end of (3)
Receives pulverized material discharged from surfaces (2n) and (3n)
Pan (6) for receiving, and the pan (6)
Later, the upper and lower mortars (3) and (2) are in an inclined state
And the outlets (6a) located below each
Crusher characterized by the following