JP3320663B2 - Crusher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a crusher for crushing tea, cereals such as sesame, barley, buckwheat, etc., and minerals such as ceramics and rocks to an appropriate particle size (fineness). .

[0002]

2. Description of the Related Art Tea is not only a specialty product but also a popular health food. Tea is rich in vitamins and minerals, and if the tea is simply served with hot water, most of the above-mentioned nutrients will remain in the tea and the nutrients cannot be taken. Therefore, if the tea is made into powdered tea and is served with hot water, sufficient intake of the above-mentioned nutrients becomes possible.

By the way, as a crusher for converting leaf tea into powdered tea, the present applicant has previously described in Japanese Patent Application No. 7-113802,
As shown in FIG. 15, a ceramic lower die 101 having a mortar-shaped crushing surface on the inner surface 101a side, and an outer surface 102a
The grinding surface formed on the side of the lower mill 101 coincides with the grinding surface of the lower mill 101, and a ceramic upper die 102 having a funnel-shaped hopper portion 103 formed on the inner surface 102b side, and a driving device for rotationally driving the upper mill 102 104 and an adjusting member 105 for adjusting the pressure of the crushing surface between the upper mill 102 and the lower mill 101
And a new compact (tabletop) crusher 100 composed of
Suggested.

[0004]

The present invention further improves the above-mentioned pulverizer, and provides a pulverizer which can easily obtain powdered tea of a desired particle size and can replace a stirring member for leaf tea. The purpose is to do so.

[0005]

According to the present invention, in order to solve the above-mentioned problems, leaf tea is supplied from a material input port provided on an upper part of a case, and the leaf tea is supplied from a material discharge port provided on an upper mill. A crusher that leads to a crushing surface between an upper mill and a lower mortar and crushes on the crushing surface into powdered tea, sweeps out the powdered tea with a brush, drops the powdered tea into a cup, and stores the powdered tea, In the hopper for storing the charged leaf tea, a supply amount adjusting plate for adjusting the supply amount of the leaf tea to the material discharge port by changing the diameter of the material discharge port of the upper mill is provided. the stirring member for stirring the leaf tea which is accumulated in the hopper unit with comprising, with its lower part in the <br/> so that passing over the material outlet with the rotation of the die, further, interchangeable the stirring member It is characterized by having prepared for.

According to a second aspect of the present invention, a drive shaft for rotating the mortar is provided at the center of the mortar, leaf tea is supplied from a material input port provided at the upper part of the case, and the leaf tea is radially displaced from the center of the upper mortar. From the material discharge port provided in the portion deviated to the upper mill and the lower mill, pulverize on the crush surface to powder tea, sweep the powder tea with a brush and drop it into a cup to powder In the hopper for storing the tea and storing the input leaf tea, the amount of the leaf tea supplied to the material discharge port is changed by changing the size of the diameter of the material discharge port of the upper mill. the stirring member for stirring the leaf tea which is accumulated in the hopper unit provided with a supply amount adjusting plate for adjusting comprises as its lower part passes over upper <br/> SL material outlet with the rotation of the die Further, the stirring member is replaceably provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, reference numeral 1 denotes a crusher, which is a table type as an example.

Reference numeral 2 denotes a main body case, which comprises an upper lid case 3, an upper case 4, a lower case 5, and a bottom lid case 6. The upper lid case 3 is formed at the center thereof with an input port 3a for inputting the material a, and the input port 3a has a distal end portion 3b fitted into a hole 21b of an inner lid 21 described later. The inlet 3a is closed by inserting a lid 7 made of a transparent synthetic resin colored so that the inside can be seen from the outside when the material a is not charged or during operation with the crusher (during rotation of the upper mill). I can do it. Further, the upper lid case 3 is provided so as to be openably and closably fitted to the upper case 4 so as to cover the upper part of the upper case 4.

The upper case 4 accommodates upper and lower dies, which will be described later, and has a discharge port 4b for discharging the fine powder b and a cup 8 made of a transparent synthetic resin for storing the pulverized material b on the side surface 4a side. Is provided, and is detachably fixed to the upper surface 5a side of the lower case 5 by a screw method.

The lower case 5 is provided with a driving device 23 to be described later.
A handle (not shown) is attached to a side of the lower case 5, and the lower surface 5 b of the lower case 5 is closed by a bottom cover case 6. The lower case 5 and the bottom lid case 6 are provided with a slit-shaped or hole-shaped radiating port 6a for releasing heat generated by the driving device 23.

Reference numeral 9 denotes a ceramic lower mortar, such as alumina porcelain, ordinary porcelain, or porcelain, having a mortar-shaped crushing surface 9a. The lower mortar 9 has a shaft hole 9b formed of a through hole at the center and an inner surface thereof. On the 9c side, as shown in FIG. 3, a main groove 9d composed of a plurality of parallel grooves and a sub-groove 9e whose direction is changed with respect to the main groove 9d are formed alternately over the entire circumference on the inner surface 9c side. A grinding surface 9a is formed.

Reference numeral 11 denotes a lower mill fixing member made of a synthetic resin, the inner surface 11a of which is formed in a mortar shape that matches the outer surface 9f of the lower mill 9, and the lower mill 9 is attached to the inner surface 11a with an adhesive 1
0, the lower mill 9 is fixed to the lower mill fixing member 11.

At the center of the bottom plate 11d of the lower mill fixing member 11, a bearing portion 11b is formed upright through a shaft hole 11c, and the bearing portion 11b is formed at the center of the bottom plate of the lower mill 9 through the shaft. It is fitted in the hole 9b. A drive shaft 26 is rotatably inserted into and supported by the bearing 11b, and an adhesive 1 is inserted into a gap (shaft hole 9b) between the bearing 11b and the lower mill 9.
0 is filled. A concave detent part 11e is formed in a part of the lower surface of the bottom plate 11d in the circumferential direction,
The detent 11e is connected to the upper surface 5a of the lower case 5 described above.
The lower mill 9 is placed on the lower case 5 together with the lower mill fixing member 11 while being prevented from rotating.

Further, a concave portion 11f is formed on one side surface of the lower mill fixing member 11, and an inner wall 4d forming a storage portion 4c of the upper case 4 is fitted and positioned in the concave portion 11f. The rotation of the upper case 4 in the circumferential direction is stopped.

Reference numeral 12 denotes an inverted conical outer surface which matches the crushing surface 9a of the lower mill 9, and the upper end 12a is attached to the lower mill 9
The upper mill is formed to be slightly longer than the upper end 9g and protruded upward, and is made of ceramics like the lower mill 9. As shown in FIG. 4, a pulverized surface 12e in which a main groove 12c and a sub-groove 12d similar to the lower mill 9 are alternately formed over the entire circumference is formed on the outer surface 12b of the upper mill 12. Further, a material discharge port 13 is formed in the upper mill 12 so as to penetrate vertically, and extends from the lower end 13a of the material discharge port 13 to the crushing surface 12e in accordance with the rotation direction of the mortar (in this case, the upper mill). An arcuate material guide groove 14 formed as described above is formed.

Further, a funnel-shaped hopper portion 15 is formed on the inner surface 12f side of the upper mill 12 so as to open upward, and a material inlet 12g is formed at the upper portion thereof. The upper part of the material outlet 13 is the hopper 1
5, and a lower portion thereof communicates with the crushing surface 12e and is connected to the material guide groove 14.

A shaft hole 12h formed as a through hole is formed at the center of the bottom wall of the upper mill 12, and a drive shaft 26 of a drive device 23 and a hook member 17 described later are formed in the hole 12h. It is fitted with a margin (gap) 16.
As shown in FIG. 4, the shape of the shaft hole 12h includes a circular shaft through portion 12i and a square fitting portion 12j formed in a concave shape on both sides thereof.

Reference numeral 17 denotes a hook member formed of a synthetic resin. The hook member 17 is an oval-shaped shaft hole 1 that matches an oval-shaped portion 26a formed at an intermediate portion of the drive shaft 26.
7a is formed as shown in FIG.
6 so that the rotational driving force of the drive shaft 26 is reliably transmitted. Further, as shown in FIG. 5, the outer shape is a circular bearing portion 17b which fits into the circular shaft hole 12h of the upper mill 12 with a margin (gap), and a concave fitting portion 12j of the upper mill 12. And a hook portion 17c having a rectangular shape that fits with a tolerance (gap). FIG. 6 shows a fitting state of the hook member 17 and the shaft hole 12h.

By being fitted as described above,
When the hook member 17 rotates in one direction, the hook portion 17c hits the inner surface of the fitting portion 12j and rotates the upper mill 12 in the same direction. Since the upper mill 12 and the hooking member 17 are fitted with allowances in the radial direction, the circumferential direction and the vertical direction, the upper mill 12 is rotated in a state where the upper mill 12 is pressed by the mounting nut 18 described later. In this case, even if there is an error in the dimensions of the upper mill 12 or the lower mill 9 and the upper and lower mills are not properly engaged with each other, the milling surface of the upper mill 12 matches the milling surface of the lower mill 9. And the material a is efficiently crushed.

Reference numeral 18 denotes a mounting nut, as shown in FIG. 7, a main body 18e made of a synthetic resin such as an ABS resin.
And an insert 18h inserted and fixed to the main body 18e, a pressing member 18g, and a pressing spring 18c which is an elastic member compressed and interposed between the main body 18e and the pressing metal 18g.

The upper surface 18a of the head of the main body 18e is rounded, and a knurl 18b is provided on the side of the head to prevent the finger from slipping when the nut 18 is tightened, and a housing 18d for housing a spring 18c is provided inside. Has formed. Further, a guide recess 18i is formed in the lower inner peripheral surface of the main body 18e as shown in FIG.

A female screw 18j is formed at the lower center of the insert fitting 18h with its lower end opened. Presser member 1
8g, as shown in FIG. 9, the outer peripheral surface is formed in a circular shape having a diameter slidable up and down on the lower inner peripheral surface of the main body portion 18e, and the outer peripheral surface is formed on the inner peripheral surface of the main body portion 18e. A guide projection 18k is formed integrally with the guide recess 18i so as to be vertically slidable. In the center, a shaft hole 18m through which the insert fitting 18h is slidably inserted.
Further, a discharge hole 18n is formed in the central plate portion for discharging the pulverized material entered in the main body 18e and the water entered during washing with water.

Then, as shown in FIG. 7, the pressing spring 18c is inserted into the main body 18e, and the pressing member 18g is attached to the main body 18e.
e, the guide projection 18k is inserted into the guide recess 18 from below.
The retaining ring 18p is fitted into the storage portion 18d, and the retaining ring 18p is fitted into the insert fitting 18h to prevent the holding member 18g from coming off, thereby forming the mounting nut 18 as a whole.

Then, the upper mill 12 is fitted to the drive shaft 26 projecting upward from the center of the lower mill 9 with the fitting portion 12j thereof being positioned at the hook portion 17c of the hook member 17,
Further, the female screw 18j of the mounting nut 18 is screwed into the male screw portion 26b of the drive shaft 26 projecting upward from the upper mill 12, and the mounting nut 18 is tightened. This tightening is completed until the lower end 18q of the insert fitting 18h hits the step 26c of the drive shaft 26 as shown in FIG.

Thus, the biasing load of the pressing spring 18c is transmitted to the upper mill 12 via the pressing member 18g.
Is pressed against the lower mill 9 at a predetermined pressure. Note that the above two screws 1
8j and 26b are engraved in a direction in which the mounting nut 18 is tightened by rotation of the drive shaft 26 (that is, a reverse screw), so that the mounting nut 18 does not loosen even when the upper mill 12 rotates. I have.

When changing the particle size of the pulverized material by adjusting the pressing force of the upper mill 12 against the lower mill 9, the pressing spring 18
c, a plurality of mounting nuts 18 having different urging loads are prepared and used as desired, or a plurality of spacers 19 having different thicknesses D as shown in FIG. Then, this is selected as desired and used interposed as shown in FIG.

The spacer 19 is, as shown in FIG.
A main body portion 19b having a predetermined thickness D having a shaft hole 19a formed in the center, a convex portion 19c fitted into the shaft through portion 12i,
And a projection 19d fitted to the holding member 18g.

Reference numeral 20 denotes a tray member which is removably fitted to the outside of the upper end 9g of the lower mill 9.
Is a receiving portion 20a formed over the entire circumference to receive the fine powder b discharged from the crushing surfaces 9a and 12e, and an attaching portion 20c for attaching to the lower mill 9 provided on the lower surface 20b side of the receiving portion 20a. And a discharge portion 20d for discharging the fine powder b crushed from a part of the receiving portion 20a to the storage portion 4c of the upper case 4. The receiving portion 20a is provided at the upper end 9g of the lower mill 9. It is formed so as to receive the fine powder b without coming in contact therewith. Receiving tray member 2
The distal end portion 20e of the discharge portion 20d at 0 projects slightly downward from the discharge port 4b formed in the upper case 4, and has a function of preventing the pan member 20 from rotating.

Reference numeral 21 denotes an inner lid which is detachably attached to the material inlet 12g of the upper mill 12 and rotates integrally with the upper mill 12.
It is made of a synthetic resin such as polyethylene, nylon, or polypropylene, and is provided so that the material a in the hopper portion 15 does not spill out of the die from the material input port 12g side during rotation driving. It is detachably mounted by a general fastening means such as a fitting type used, a detachable type using a locking member such as a spring, or a screw tightening type using a reverse screw, and a hopper. Part 15
It is made of a transparent synthetic resin so that the remaining state of the material a in the inside can be visually confirmed from outside through the inner lid 21.

Reference numeral 22 denotes one or a plurality of brushes provided on the outer periphery of the inner cover 21, and a fitting method utilizing the elasticity of the inner cover 21 itself or the elasticity of the brush 22 itself is fitted to the flange 21 a of the inner cover 21. It is attached detachably (replaceable) by general fastening means, and when the upper mill 12 rotates,
The inner lid 21 fitted to the upper mill 12 also rotates, and the fine powder b discharged from the crushing surfaces 9a and 12e of the upper and lower dies is received by the receiving plate portion 20a of the plate member 20, and the received fine powder b is It is collected by the rotating brush 22 and discharged to the cup 8 from the discharge portion 20d of the tray member 20.

Reference numeral 23 denotes a small motor 24, a transmission gear 25 for shifting the high-speed rotation of the motor to low-speed rotation, a drive shaft 26, the motor 24 and the gear 25, and
And a timer (not shown) for controlling the rotation time of the motor 24. The motor 24 is attached to the mounting fitting 27 by a screw 32. The mounting bracket 27 is further attached to the bottom lid case 6 by three sets of screws 28.
(Only one set of screws is shown in the figure). The gear portion 25 is provided on the upper surface 2 of the mounting bracket 27.
7a side, the first gear 25a and the second gear 25
b.
9 and supported on the upper wall of the lower case 5 by three sets of screws 30 (only one set of screws is shown in the figure).

The rotation of the motor 24 is controlled by the shaft 2
4a, the first gear 25a, and the second gear 25b are transmitted to the drive shaft 26 via the first gear 25a, and the upper mill 12 is driven via the hook member 17. At this time, the ratio between the first gear 25a and the second gear 25b is adjusted so that the drive shaft 26 rotates at 200 to 300 rpm.

The motor 24 is controlled so as to be driven for a predetermined time and then stopped by setting a timer (not shown). The above motor 2
No. 4 may be replaced by a geared motor equipped with a transmission gear.

Reference numeral 31 agitates the material a, which is entangled in a bridge shape and stays in the hopper portion 15 of the upper mill 12, particularly near the material discharge port 13 located below the hopper portion 15, as the upper mill 12 rotates. Stirring member,
The member 31 is an inlet 3a located at the center of the upper lid case 3.
The upper end case 31 is inserted and mounted from below the upper lid case 3 to the holding portion 3c attached to the upper case 12 so that the lower end portion 31a is located above the material discharge port 13 below the upper mill 12. In addition,
The stirring member 31 held by the holding portion 3c can be replaced by extracting it downward, and for example, if it is cut off, it can be replaced with a new one.

Next, a case will be described in which leaf tea t (material a) is converted into powdered tea p (fine powder b) by using the crusher 1 described above. When the crusher 1 is stopped, the pressure between the crushing surfaces 9a and 12e of the lower mill 9 and the upper mill 12 is set to a desired particle size (fineness).
A mounting nut 18 having a pressing spring 18c having a desired biasing load is selected and tightened, or the mounting nut 18 is tightened via a spacer 19 having a desired thickness so that the powdered tea P is ground. That is, when the particle size is reduced, the mounting nut 18 having a large urging load of the pressing spring 18c is used, or the spacer 19 having a large thickness is used. Conversely, when it is desired to increase the particle size, the mounting nut 18 with a small biasing load of the pressing spring 18c is used, or the spacer 19 with a small thickness is used.

Then, a predetermined amount of leaf tea t is supplied to the hopper 15 formed on the upper mill 12, and the inner lid 21 and the upper lid case 3 are fitted into the upper mill 12 and the upper case 4 and fixed. In addition, when the particle size (fineness) of the powdered tea p is not changed or when the leaf tea t is continuously converted into the powdered tea p, the lid 7 provided at the input port 3a of the upper lid case 3 is removed.
The leaf tea t may be supplied to the hopper 15 from the inlet 3a.

When the supply of the leaf tea t is completed, a power cord (not shown) is plugged into an outlet, a crushing time is determined according to a crushing amount by a timer (not shown), and the power is turned on when the timer is set. , Drive 2
3 starts, the drive shaft 26 rotates at a low speed, and the upper mill 12 rotates.

At this time, if one or both of the upper mill 12 and the lower mill 9 has a dimensional error due to distortion or the like at the time of firing, and there is a fitting failure between the crushed surfaces of the two mills 12 and 9, A gap 16 between the hook member 17 and the upper mill 12 in the vertical, horizontal, and circumferential directions;
Since the upper mill 12 is pressed by c, the upper mill 12 freely changes its posture and rotates along the pulverized surface of the lower mill 9, thereby avoiding the rotation failure and the poor pulverization due to the above-described poor fitting. it can.

The leaf tea t put into the hopper 15 is stirred by the stirring member 31 attached to the upper lid case 3 as the upper mill 12 rotates each time the leaf tea t in the hopper 15 is stirred. . Therefore, the leaf tea t is smoothly discharged from the material discharge port 13 below the upper mill 12.

The leaf tea t discharged from the material discharge port 13 is guided to the crushing surfaces 9a and 12e through the material guide grooves 14 by centrifugal force accompanying the rotation of the upper mill 12. The leaf tea t is further rotated by rotation of the upper mill 12 to form the main grooves 9 of the upper and lower mills 9 and 12.
d and 12c and the sub-grooves 9e and 12d intersect and slide, and move inside or on the groove while being crushed or crushed, and move toward the radially outer periphery. At this time, since the crushing surfaces 9a and 12e of the upper and lower mortars are in the shape of a mortar, the leaf tea t stays for a long time by moving back and forth on the crushing surface, and gradually moves toward the outer peripheral side to become finer. Is crushed.

As the pulverization further proceeds, the pulverized powdered tea p is discharged from the joint end face A of the upper mill 12 and the lower mill 9, and accumulates on the tray 20a. The accumulated powdered tea p is swept in the direction of the discharge portion 20d of the tray member 20 by the sweeping action of the brush 22 fixed to the inner lid 21 that rotates together with the upper mill 12, and is discharged in the direction of the discharge portion 20d of the tray member 20a. From the aircraft. The discharged powdered tea p is dropped and stored in a container such as a cup which is located separately at the tip end portion 20e. Then, when the crushing time previously determined is reached, the timer is turned off, and the power is also turned off, and the operation of turning the leaf tea t into the powder tea p is completed.

While the above has been described with reference to an example in which leaf tea is made into powdered tea, the material to be crushed is not limited to tea leaves, but may be other cereals or minerals. Also, the size of the crusher is not limited to the table type, and a large crusher installed on the ground may be used as long as it does not deviate from the purpose of the present application.

Next, the care after use of the crusher 1 will be described. In the crusher 1 according to the present invention, the upper lid case 3 and the upper case 4 can be disassembled to facilitate cleaning.

First, the upper lid case 3 is opened. Next, the mounting nut 18 is loosened and removed.
When using, the spacer 19 is also removed. ) Then, the upper mill 12 is lifted and removed from the drive shaft 26 and the hook member 17, and the hook member 17 is also taken out from the drive shaft 26. Further, the lower mill 9 is similarly lifted and removed, and then the upper case 4 is removed. The upper and lower mortar and upper case are brushed, and if necessary, washed with water to remove the adhered powder residue,
Wipe dry and dry. The main body case 2 is also cleaned with a brush or the like. Upper mill 12 once removed after cleaning as described above
Etc. are reassembled to the main body case 2 in the reverse order of the removal, and the cleaning is completed. Cleaning (care) after use does not need to be performed each time, but is performed as necessary after checking the adhesion state and the like.

FIGS. 12 to 14 show another embodiment of the present invention. In this embodiment, the upper mill 12 is provided with a material discharge port 13.
Is provided with a supply amount adjusting plate 33 that adjusts the opening degree.

In FIG. 12, a supply amount adjusting plate 33 is for adjusting the input amount (supply amount) of the material (leaf t) to the material discharge port 13 and is made of a metal such as a stainless steel plate or a synthetic resin. The lower surface of the holding member 18g and the upper mill 1
The mounting hole 33d is mounted on the drive shaft 26 so as to be interposed between the lower portions of the inner surfaces of the two. After the supply nuts 33 are loosened or the nuts are removed from the drive shaft 26, the adjusting parts 33a, 33b,
Rotation adjustment (position change) is performed so that 33c is positioned above the discharge port 13. The diameter of the material discharge port 13 is changed by this adjustment (position change).

That is, when the adjusting portion 33a having a large degree of protrusion is located on the discharge port 13, it is largely obstructed by the adjusting portion 33a and the diameter of the material discharge port 13 becomes substantially small. As the amount of tea leaves decreases, the force of pushing up the tea leaves (powder tea) upwards becomes weaker, the residence time on the crushed surface becomes longer, and the crushed particle size of the leaf teas becomes finer. In addition, when the adjusting portion 33c with a small degree of protrusion is located, the diameter of the material discharge port 13 is increased, and the amount of leaf tea sent to the crushing surface is increased. The residence time on the surface becomes shorter, and the crushed particle size becomes coarser than the above. In the case of the adjusting portion 33b having an intermediate degree of protrusion, the diameter of the material discharge port 13 is also an intermediate diameter between the two, so that the pulverized particle size is naturally intermediate.

[0048]

As described above, according to the present invention, the supply amount adjusting plate for adjusting the supply amount of leaf tea from the upper mill by changing the diameter of the material discharge port provided in the upper mill is provided in the hopper. By appropriately changing the size of the outlet, the crushed particle size of the leaf tea is set as desired, and powdered tea having the desired particle size is obtained.

Further, since the stirring member is provided in the hopper portion, the hopper is entangled like a bridge near the discharge port of the upper mill and stagnates.
Is stirred and the leaf tea is smoothly discharged from the material discharge port. Furthermore, it is possible to adjust the milled particle size of the leaf tea to adjust the diameter of the adjustment to the material discharge port supply amount adjusting plate
You. Further, when the stirring member is broken, for example , the member can be replaced with a new one.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a crusher of the present invention.

FIG. 2 is an enlarged sectional 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 of FIG. 1;

FIG. 5 is a top view of the hook member of FIG. 1;

FIG. 6 is an enlarged view of the shaft hole when the hooking member is inserted into the shaft hole of the upper mill as viewed from the hopper side of the upper mill.

FIG. 7 is a side sectional view of a mounting nut.

8 (a) is a side sectional view, and FIG. 8 (b) is a bottom view, showing a main body of the mounting nut.

9A and 9B show a holding member, wherein FIG. 9A is a plan view,
(B) is a side sectional view.

10A and 10B show a spacer, in which FIG.
(B) is a side view, (c) is a side sectional view.

FIG. 11 is an enlarged side sectional view of a main part in a state where a spacer is inserted between an upper mill and a mounting nut.

FIG. 12 is a sectional side view of a main part showing a second embodiment provided with a supply amount adjusting plate.

FIG. 13 is a side view of a supply amount adjusting plate.

FIG. 14 is a plan view of a supply amount adjusting plate.

FIG. 15 is a side view of a conventional crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Crusher 8 Cup 9 Lower mill 9a Grinding surface 12 Upper mill 12e Grinding surface 13 Material outlet 15 Hopper part 22 Brush 31 Stirring member 33 Supply amount adjusting plate

Continuation of the front page (56) References JP-A-60-12142 (JP, A) JP-A-49-58884 (JP, U) JP-A-53-23974 (JP, U) JP-A-3-34787 (JP) , U) Jikgyo 1687 (JP, Y1) Utility model registration 356378 (JP, Z1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B02C ^7/ 00-7/18

Claims (2)

(57) [Claims] 1. A leaf tea is supplied from a material input port provided in an upper part of a case, and the leaf tea is guided from a material discharge port provided in an upper mill to a crushing surface between an upper mill and a lower mill. It is a crusher that is crushed to powdered tea, is a crusher that sweeps the powdered tea with a brush and drops into a cup to store the powdered tea, and a hopper portion for storing the input leaf tea is A stirrer that stirs the leaf tea stored in the hopper with the supply amount adjustment plate that changes the size of the diameter of the material outlet of the upper mill and adjusts the supply amount of the leaf tea to the material outlet, its lower part with the rotation of the die includes Te by <br/> Unishi passes over the material outlet, furthermore, grinder, characterized by comprising interchangeably the stirring member. 2. A drive shaft for rotating the mill is provided at the center of the mill,
The leaf tea is supplied from the material input port provided at the upper part of the case, and the leaf tea is supplied to the crushing surface between the upper mill and the lower mill from the material discharge port provided at a portion deviated from the center of the upper mill in the radial direction. The powdered tea is crushed by the crushing surface to powder tea, the powdered tea is swept with a brush and dropped in a cup so as to store the powdered tea, and further into a hopper portion for storing the charged leaf tea. A stirrer for changing the diameter of the material outlet of the upper mill to adjust a supply amount of the leaf tea to the material outlet, and a supply amount adjusting plate for stirring the leaf tea stored in the hopper. The lower part of the material outlet with the rotation of the mortar
A pulverizer characterized by being provided so as to pass thereover, and further having the stirring member exchangeably provided.