JP6529395B2 - Pulverizer - Google Patents

Description

The invention, and water by mixing about pulverizng device you pulverizng is extracted liquid coffee beans are raw materials.

  When coffee beans, dry soybeans, etc., which are dry materials, are crushed to extract the extract, a liquid for extraction such as water, warm water, etc. and dry materials are mixed and crushed in order to extract efficiently without damaging flavor components and the like. Wet grinding equipment is used. FIG. 12 is a schematic view showing the configuration of a conventional wet grinding apparatus.

  As shown in FIG. 12, the conventional wet pulverizing apparatus supplies coffee beans from a raw material tank 1 and a liquid for extraction from a raw material tank 2 to a mixing tank 3 and mixes them. Then, it is transferred from the mixing tank 3 to the wet pulverizing apparatus (primary pulverizer) 4 to be roughly pulverized and further finely pulverized by the secondary pulverizer 5. However, with regard to the dried raw material having a small specific gravity, the dried raw material tends to float on the liquid surface of the liquid for extraction in the mixing tank 3, and there is also a possibility that it may be difficult to crush it with the primary crusher 4.

  Thus, for example, Patent Document 1 discloses a coffee beverage manufacturing apparatus provided with a grinding device in which water is supplied into a grinding chamber together with coffee beans and a fixed cutter having annular teeth and a rotary cutter grind the coffee beans. There is. Patent Document 2 discloses a crusher in which the central axes of rotation of the fixed blade body and the rotary blade body are in the vertical direction. In either case, dry raw material and water can be supplied along the natural fall or the inclination of the supply pipe.

JP 2000-333612 A Unexamined-Japanese-Patent No. 2004-105907

  However, in the grinding device disclosed in Patent Document 1, coffee beans are guided into the grinding device by natural fall. Therefore, depending on the supply amount, the specific gravity, and the like of the dry raw material, there has been a problem that it may be difficult to smoothly guide the dry raw material into the crushing apparatus. Further, as in the crusher disclosed in Patent Document 2, when the central axis of rotation of the fixed blade body and the rotary blade body is in the vertical direction, clogging of the fixed blade body and the rotary blade body is easily caused by the drying raw material .

The present invention has been made in view of such circumstances, raw materials and extraction liquid is reliably self-priming, and an object thereof is to provide a capable pulverizng device be efficiently pulverized.

In order to achieve the above object, a crushing apparatus according to a first aspect of the present invention includes a rotor having a first member, a stator having a second member, and a housing for accommodating the rotor and the stator, wherein the rotor is rotated. A pulverizing device for pulverizing the raw material by causing the raw material to be introduced between the first member and the second member while the plurality of stages of the first member are provided on the rotor, And the second member is a fixed tooth provided in a plurality of stages on the stator and formed in a plurality of circumferential directions in each of the stages. The fixed teeth in each stage on the stator may be fitted between stages of the rotating teeth on the rotor .

According to a first aspect of the invention, a rotor having a first member, a stator having a second member, and a housing for housing the rotor and the stator are provided. Since the negative pressure is generated inside the casing when the raw material is introduced between the first member and the second member and the raw material is crushed while rotating the rotor, the introduced raw material is guided to the rotor It is possible to grind the raw material in a self-priming manner. In addition, since the fixed teeth in each of the stages on the stator are inserted between the stages of the rotating teeth on the rotor and the stages of the rotating teeth, the raw material can be made into the first member and the second member while rotating the rotor. It is easy to get in between, and it becomes possible to grind the raw material self-priming.

In the crushing apparatus according to the second aspect of the present invention, in the first aspect , the rotary teeth of the rotor are formed in a saw blade shape, and the stationary teeth of the stator are in a saw blade shape on the side facing the rotary teeth of the rotor. It is characterized in that it is formed.

In the second invention, the rotating teeth of the rotor are formed in a saw blade shape, and the fixed teeth of the stator are formed in a saw blade shape on the side facing the rotating teeth of the rotor. It is easy to capture between fixed teeth and can be crushed more efficiently.

A crushing apparatus according to a third aspect of the present invention is characterized in that in the first or second aspect , the distance between the fixed teeth and the fixed teeth of the stator becomes smaller as the distance from the center of rotation decreases. .

In the third aspect of the invention, since the distance between the fixed teeth and the fixed teeth of the stator is set so as to decrease as the step away from the rotation center, the crushed and reduced raw material is crushed more finely as it approaches the outer edge. It becomes possible.

A crushing apparatus according to a fourth aspect of the present invention is the crusher according to any one of the first to third aspects, further comprising: an inlet for supplying the raw material to the rotor, wherein the inlet is directed downward toward the rotor. It is characterized by being inclined.

In the fourth aspect of the invention, since the inlet for supplying the raw material is inclined downward toward the rotor side, the rotor can self-suck the raw material, and it becomes possible to grind it reliably.

A crushing apparatus according to a fifth aspect of the present invention comprises a rotor having a first member, a stator having a second member, and a housing for containing the rotor and the stator, and rotating the rotor, the raw material is A pulverizing apparatus for pulverizing a raw material by being introduced between the first member and the second member, wherein the first member is provided in a plurality of stages on the rotor, and the circumferential direction in each stage And the second member is a plate member provided with a plurality of steps on the stator and having a plurality of slits formed in the circumferential direction in each step. The plate member in each stage on the stator is characterized in that it is fitted between the stages of the rotating teeth and the stages of the plurality of stages on the rotor.

In the fifth aspect of the invention, the first member is a rotary tooth provided in a plurality of stages on the rotor and formed in the circumferential direction in each stage. The second member is a plate member provided with a plurality of stages on the stator, and further having a plurality of slits formed circumferentially in each stage. The plate members in each of the stages on the stator are inserted between the stages of the rotating teeth on the rotor and the stages of the rotating teeth, so that while rotating the rotor, the raw material is made of the first and second members. It is easy to get in between, and it becomes possible to grind the raw material in a self-priming manner.

A crushing apparatus according to a sixth invention is characterized in that, in any one of the first to fifth inventions, the rotor is provided with a centrifugal blade member at an outer edge portion.

In the sixth aspect of the invention, since the rotor is provided with the centrifugal blade members at the outer edge, negative pressure can be generated in the rotor, and the introduced raw material and extraction liquid can be guided to the rotor. It becomes possible to grind the raw material in a self-priming manner.

A crushing apparatus according to a seventh invention is characterized in that, in any one of the first to sixth inventions, an axial direction of rotation of the rotor is different from a vertical direction.

In the seventh invention, since the axial direction of rotation of the rotor is different from the vertical direction, the raw material is less likely to be clogged in the vicinity of the center of the rotation axis, and a long grinding operation becomes possible.

A crushing apparatus according to an eighth invention is characterized in that in the seventh invention, an axial direction of rotation of the rotor is a horizontal direction orthogonal to the vertical direction.

In the eighth aspect of the invention, since the axial direction of the rotation of the rotor is a horizontal direction orthogonal to the vertical direction, clogging of the raw material in the vicinity of the center of the rotation axis is unlikely, and a long grinding operation becomes possible.

According to the present invention, by rotating the rotor can be crushed raw material with the extraction liquid, is provided with the centrifugal blade member to the outer edge of the rotor in addition, it is produced negative pressure in the rotor can, the inserted raw material and extraction liquid can be guided to the rotor, it is possible to grind the raw material to the own吸的.

BRIEF DESCRIPTION OF THE DRAWINGS It is the front view and model sectional drawing which show the structure of the wet-crusher based on embodiment of this invention. It is a schematic cross section which shows the structure of the wet-grinding apparatus which concerns on embodiment of this invention, and AA sectional drawing of Fig.2 (a). It is a front view showing composition of a rotor of a wet grinding device concerning an embodiment of the invention. It is a schematic cross section which shows the structure of the rotor of the wet-crusher based on embodiment of this invention. It is a front view showing composition of a stator of a wet grinding device concerning an embodiment of the invention. It is a schematic cross section which shows the structure of the stator of the wet-crusher based on embodiment of this invention. It is a front view which shows the positional relationship of the rotor and stator of the wet crushing apparatus which concerns on embodiment of this invention. It is a front view which shows the positional relationship of the rotor and stator of the wet crushing apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the meshing relation of the rotating tooth of a rotor of the wet-crusher concerning embodiment of this invention, and a stator. It is a schematic diagram which shows the structure of the extraction apparatus using the wet-crusher concerning embodiment of this invention. It is an illustration figure of the shape of the slit of the wet-crusher based on embodiment of this invention. It is a schematic diagram which shows the structure of the conventional wet-grinding apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, coffee beans having a particle size of 10 mm or less and a water content of 30% or less are assumed as raw materials (hereinafter, dry raw materials) . Moreover, the wet-crusher which uses fresh water as an extraction liquid is mentioned as an example, and is demonstrated .

  FIG. 1 is a front view and a schematic cross-sectional view showing the configuration of a wet grinding apparatus according to an embodiment of the present invention. Fig.1 (a) shows the front view which shows the structure of the wet-crusher 10 which concerns on embodiment of this invention, FIG.1 (b) shows the structure of the wet-crusher 10 which concerns on embodiment of this invention The schematic cross section is shown, respectively.

  As shown in FIG. 1, the wet crushing apparatus 10 according to the present embodiment is configured of a fixed stator 104 and a rotor 103 that can be rotated by the drive motor 11. It is possible to supply coffee beans, which are dry raw materials, and fresh water, which is a liquid for extraction.

The inlet 101 is inclined downward toward the rotor 103 side. Therefore, the coffee beans and the extraction liquid (fresh water) supplied from the inlet 101 are supplied to the vicinity of the rotating teeth of the rotor 103 along the inclination of the inlet 101. As the rotor 103 rotates, dry raw materials such as coffee beans are crushed by the rotating teeth of the rotor 103 and the fixed teeth of the stator 104, and are discharged together with the extract (slurry) from the discharge port 102.

  FIG. 2: is a schematic cross section which shows the structure of the wet-crusher 10 which concerns on embodiment of this invention, and AA sectional drawing of Fig.2 (a). Fig.2 (a) is a schematic cross section which shows the structure of the wet-crusher 10 which concerns on embodiment of this invention, FIG.2 (b) shows the structure of the wet-crusher 10 which concerns on embodiment of this invention The AA sectional view shown is shown, respectively.

  As shown in FIG. 2A, the inlet 101 is inclined downward toward the rotor 103 (the stator 104). Therefore, the coffee beans input from coffee bean input section 111 and the extraction liquid (fresh water) input from fresh water input section 112 are guided to the rotor 103 side (stator 104 side) along the inclination of input port 101. Ru.

  The stator 104 is provided with a plurality of stages of fixed teeth 114 concentrically, with the fixed teeth 114 formed with a plurality of teeth in the circumferential direction as one stage. The rotor 103 is provided with a plurality of stages of rotary teeth 113 concentrically with the stator 104, with the rotary teeth 113 formed of a plurality of teeth in the circumferential direction as one stage. The fixed teeth 114 of the stator 104 are disposed so as to be fitted between the stages of the rotary teeth 113 of the plurality of stages of the rotor 103.

  As the stator 104, a plate member having a plurality of slits may be used instead of the fixed teeth 114. Since the dried raw material such as coffee beans can be captured by the slit and the captured dried raw material can be crushed by the rotational movement of the rotary teeth 113 of the rotor 103, the same effect can be expected.

  FIG. 3 is a front view showing the configuration of the rotor 103 of the wet grinding apparatus 10 according to the embodiment of the present invention. FIG. 4 is a schematic cross-sectional view showing the configuration of the rotor 103 of the wet grinding apparatus 10 according to the embodiment of the present invention.

  The rotor 103 of the wet crushing apparatus 10 according to the present embodiment is provided with a plurality of rotating teeth 113 in a comb-like shape for each step. That is, the plurality of rotating teeth 113 are arranged in a plurality of stages in the circumferential direction of the concentric circles, and sawtooth teeth 113a are formed in the hatched portion shown in FIG. In the example of FIG. 3 and FIG. 4, a plurality of rotating teeth 113 are arranged in four stages in the circumferential direction of the concentric circle.

  In addition, the wet crushing apparatus 10 according to the present embodiment includes the centrifugal blade member 120 at the outer edge portion of the rotor 103. Since the centrifugal blade member 120 also rotates with the rotation of the rotor 103, the crushed slurry can be guided to the outer peripheral side of the rotor 103, and the slurry can be reliably discharged from the discharge port 102. In addition, since the negative pressure inside the housing (including the stator 104) housing the rotor 103 is large, the force for sucking the dried raw material such as coffee beans and the liquid for extraction (fresh water) into the rotor 103 is increased. It becomes strong, and it becomes possible to self-suck and grind | pulverize dry raw materials, such as a coffee bean.

  FIG. 5 is a front view showing the configuration of the stator 104 of the wet grinding device 10 according to the embodiment of the present invention. FIG. 6 is a schematic cross-sectional view showing the configuration of the stator 104 of the wet grinding device 10 according to the embodiment of the present invention. In addition, the ellipse area | region shown in FIG. 5 has shown the connection position of the insertion port 101, and a dry raw material and the liquid for extraction are injected | thrown-in from an ellipse area | region. By connecting the inlet 101 to the opposite side of the outlet 102, the dried raw material is prevented from being discharged without being crushed.

  The stator 104 of the wet crushing apparatus 10 according to the present embodiment has a plurality of circumferentially concentric with the rotor 103 so that the plurality of rotary teeth 113 of the rotor 103 can rotate between the stages. The fixed teeth 114 are provided in a comb-like shape for each step. That is, the plurality of fixed teeth 114 are arranged in a plurality of stages in the circumferential direction of the concentric circle, and sawtooth teeth 114 a are formed in the hatched portion shown in FIG. 5. In the example of FIG.5 and FIG.6, the several fixed tooth 114 is arrange | positioned five steps in the circumferential direction of a concentric circle.

  Then, as the rotor 103 rotates, the relative positional relationship between the rotary teeth 113 of the plurality of stages of the rotor 103 and the fixed teeth 114 of the plurality of stages of the stator 104 changes. 7 and 8 are front views showing the relative positional relationship between the rotor 103 and the stator 104 of the wet grinding apparatus 10 according to the embodiment of the present invention. FIG. 8 shows the relative positional relationship between the rotating teeth 113 of the rotor 103 and the fixed teeth 114 of the stator 104 when the rotor 103 is rotated 15 degrees with reference to FIG.

  As understood from the comparison between FIG. 7 and FIG. 8, the shape of the gap between the rotating teeth 113 of the rotor 103 and the fixed teeth 114 of the stator 104 is changed by the rotation of the rotor 103, and the introduced coffee A dry raw material such as beans is repeatedly crushed when it enters between the rotating teeth 113 and the fixed teeth 114, and is crushed when it enters. Therefore, it becomes possible to grind dry materials efficiently.

  FIG. 9 is a schematic view showing the meshing relationship between the rotary teeth 113 of the rotor 103 and the stator 104 of the wet grinding apparatus 10 according to the embodiment of the present invention. As shown in FIG. 9, the rotary teeth 113 of the rotor 103 have a shape that inclines along the circumferential direction (arrow direction). The rotating teeth 113 of the rotor 103 are formed in a saw blade shape.

  FIG. 9A shows the case where the stator 104 is provided with a plurality of stages of fixed teeth 114. The fixed teeth 114 of the stator 104 are formed in a sawtooth shape on the side facing the rotating teeth 113 formed in the sawtooth shape of the rotor 103. Further, it is preferable that the fixed teeth 114 of the stator 104 be inclined in the opposite direction to the inclining direction of the rotary teeth 113 of the rotor 103. This is because the dry raw material such as coffee beans can be easily pinched between the rotating teeth 113 of the rotor 103 and the fixed teeth 114 of the stator 104, and the efficiency of crushing becomes high. As a result, when the rotor 103 rotates in the direction of the arrow, dry raw material such as coffee beans is obtained by the sawtooth teeth 114a of the fixed teeth 114 of the stator 104 and the sawtooth teeth 113a of the rotary teeth 113 of the rotor 103. Can be crushed reliably.

  The distance between the fixed teeth 114 of the adjacent stators 104 is set so as to decrease as the distance from the rotation center of the rotor 103 increases. As a result, the rotor 103 can be pulverized more finely from the inside to the outside, and the pulverized slurry can be reliably discharged from the discharge port 102.

  Further, as described above, the stator 104 may be provided with a plate member having a slit instead of the fixed teeth 114. FIG. 9B shows the case where the stator 104 is provided with a plurality of plate members having the slits 114 d.

  As shown in FIG. 9B, instead of the fixed teeth 114 of the stator 104, a plate member 114c having a slit 114d is provided. As a result, when the rotor 103 rotates in the direction of the arrow, the dry raw material such as coffee beans can be reliably crushed by the slits 114 d of the stator 104 and the saw-tooth shaped teeth 113 a of the rotating teeth 113 of the rotor 103. .

  The distance between the slits 114 d (plate members 114 c) of the adjacent stators 104 is set so as to decrease as the distance from the rotation center of the rotor 103 increases. As a result, the dry raw material can be pulverized more finely from the inside to the outside of the rotor 103, and the pulverized slurry can be reliably discharged from the discharge port 102.

  FIG. 10 is a schematic view showing a configuration of an extraction apparatus using the wet grinding apparatus 10 according to the embodiment of the present invention. As shown in FIG. 10, dry raw materials such as coffee beans charged into the primary tank 50 are transported by the screw feeder 80 and stored in the secondary tank 60. In a state where dry raw materials such as coffee beans supplied from the secondary tank 60 and the extraction liquid supplied from the liquid supply pipe 70 are mixed, a slurry is formed by the wet grinding device 10. A return device 30 may be provided to circulate the slurry for higher concentration extraction.

  As described above, according to the present embodiment, the rotor 103 can be rotated to grind dry raw materials such as coffee beans together with the liquid for extraction, and additionally, the centrifugal blade member 120 is provided at the outer edge of the rotor 103 Therefore, negative pressure can be generated in the rotor 103, and the supplied drying raw material such as coffee beans and the extraction liquid can be guided to the rotor 103, and the self-priming dried raw material such as coffee beans It becomes possible to crush.

  In particular, ungrind roasted coffee beans which have a small specific gravity and easily float on the liquid surface of the extraction liquid (fresh water) are continuously wet-pulverized and pulverized by the wet pulverizing apparatus 10 according to the present embodiment. The coffee slurry can be extracted by solid-liquid separation thereafter. In addition to coffee beans, it can also be used, for example, for wet grinding dry soybeans in soymilk production. That is, as long as the dry raw material is wet-pulverized in the food production, it is possible to apply the wet-pulverizing apparatus 10 according to the present embodiment.

  It goes without saying that various modifications can be made to the above embodiment without departing from the spirit of the present invention. For example, the shape of the slits 114 d of the stator 104 is not limited to being rectangular as in the embodiment.

  FIG. 11 is an exemplary view of the shape of the slit 114 d of the wet grinding apparatus 10 according to the embodiment of the present invention. Assuming that the rotational direction of the rotor 103, that is, the moving direction of the rotary teeth 113 is the same as that shown in FIG. 9, for example, as shown in FIG. It may be a slit having a parallelogram shape 114d. Of course, as shown in FIG. 11B, it may be a trapezoidal slit 114d, one side of which is inclined in the opposite direction to the inclination direction of the rotary teeth 113 of the rotor 103.

  Alternatively, even in the case of the rectangular slit 114d similar to the embodiment, in the meshing direction (left end of the rectangular slit) of the rotating teeth 113 of the rotor 103 and the slit 114d of the stator 104, as shown in FIG. As shown, a tooth pattern may be formed in the slit 114d. This also makes it possible to grind dry materials such as coffee beans more reliably.

DESCRIPTION OF REFERENCE NUMERALS 10 wet grinding apparatus 101 input port 102 discharge port 103 rotor 104 stator 113 rotating tooth 114 fixed tooth 114 c plate member 114 d slit 120 centrifugal blade member

Claims (8)

A rotor having a first member;
A stator having a second member;
A housing that houses the rotor and the stator;
A pulverizing apparatus for pulverizing a raw material by letting the raw material enter between the first member and the second member while rotating the rotor.
The first member is a rotary tooth provided in a plurality of stages on the rotor and formed in the circumferential direction in each stage.
The second member is a fixed tooth which is provided in a plurality of stages on the stator and which is formed in the circumferential direction in each stage.
The fixed teeth in each of the stages on the stator, the milling device according to claim Rukoto is fitted between the rotary teeth of the stage and the stage of the plurality of stages on the rotor. The rotating teeth of the rotor are formed in the shape of a saw blade,
Fixing teeth of the stator, the milling device of claim 1, the side opposite to the rotation teeth of the rotor, characterized that you have been formed in sawtooth. Distance between the fixed tooth and the fixed tooth of the stator, the milling device according to claim 1 or 2, as provided Oh characterized Rukoto which decreases as stages away from the center of rotation. And an inlet for supplying the raw material to the rotor,
-Projecting inlet, crushing apparatus according to any one of claims 1 to 3, characterized that you have inclined downwardly toward the rotor side. A rotor having a first member;
A stator having a second member;
A housing for housing the rotor and the stator;
Equipped with
A pulverizing apparatus for pulverizing a raw material by letting the raw material enter between the first member and the second member while rotating the rotor.
The first member is a rotary tooth provided in a plurality of stages on the rotor and formed in the circumferential direction in each stage.
The second member is a plate member provided with a plurality of stages on the stator, and further having a plurality of slits formed circumferentially in each stage,
Said plate member in each of the stages on the stator, fitted to pulverizng device you wherein Rukoto between the rotating teeth of the stage and the stage of the plurality of stages on the rotor. The rotor, grinding apparatus according to any one of claims 1 to 5, characterized that you have provided a centrifugal blade member to the outer edge. The crushing apparatus according to any one of claims 1 to 6, wherein an axial direction of rotation of the rotor is different from a vertical direction . Axial rotation of the rotor, the milling device according to claim 7, wherein the horizontal der Rukoto perpendicular to the vertical direction.

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