WO2010062098A2

WO2010062098A2 - Grinder unit

Info

Publication number: WO2010062098A2
Application number: PCT/KR2009/006945
Authority: WO
Inventors: 유지하; 김정훈; 김영국
Original assignee: 유일시스템 주식회사
Priority date: 2008-11-25
Filing date: 2009-11-24
Publication date: 2010-06-03
Also published as: KR20100059034A; WO2010062098A3; KR101109768B1

Abstract

The present invention provides a grinder unit furnished with a grinder unit housing, a unit power part mounted on said grinder unit housing, a pair of grinder cutters that are mounted and deployed on said grinder unit housing to rotate, a unit power transmission part that connects said unit power part with said grinder cutters so that a target item may be crushed by said grinder cutters that have received rotational power from said unit power part, and a cutter driver part used to control the gap between the pair of grinder cutters that are deployed facing each other.

Description

Grinder unit

The present invention relates to a grinder, and more particularly to a grinder unit having a structure that enables the grinding of the object to a certain particle size.

The demand for coffee is exploding due to various preferences of consumers. The demand for coffee machines is increasing in line with the increase in the number of shops and specialization of consumers.

In the case of coffee machines, grinders and espresso machines were formed in many structures, but production of automated coffee machines capable of directly injecting coffee beans as objects and extracting coffee with steam according to consumer demand for automation Research is active.

On the other hand, in the case of a grinder provided in the coffee machine according to the prior art, the user manually adjusts the grain size of the coffee beans when the user is unfamiliar with the machine, such as a professional barista. There was a problem that it is difficult to uniformly provide the coffee taste.

In addition, the problem of controlling the object particle size in such a grinder is accompanied with the same problem as described above when grinding not only coffee but also food materials having a certain strength such as nuts to a certain particle size.

Accordingly, the present invention is to solve the above-described problems, the grinder unit is provided in a coffee machine, etc., provided with a component for controlling the particle size to be able to constantly provide the object powder, such as coffee beans powder of uniform particle size An object of the present invention is to provide a grinder unit having a structure that can be used.

The present invention for achieving the above object, a grinder unit housing, a unit power unit mounted to the grinder unit housing, a pair of grinder cutters rotatably mounted to the grinder unit housing, and the unit power unit A unit power transmission unit for connecting an object to the grinder cutter, the object being crushed by the grinder cutter received the rotational force from the unit power unit, and a pair of grinder cutters disposed to face each other. Provided is a grinder unit having a cutter movable portion.

In the grinder unit, the grinder cutter includes a lower grinder cutter, an upper grinder cutter disposed to face the lower grinder cutter, and the unit housing includes a lower grinder housing to which the lower grinder cutter is mounted, and the upper grinder cutter. An upper grinder housing to which a grinder cutter is mounted, wherein the cutter movable portion is connected to a cutter movable gear wheel formed on the upper grinder housing, a cutter movable gear engaged with the cutter movable worm wheel, and the cutter movable gear It is also possible to include a cutter movable motor for rotating the cutter movable gear.

In the grinder unit, the cutter movable gear wheel and the cutter movable gear may be formed in a worm gear structure.

In the grinder unit, the grinder cutter includes a lower grinder cutter, an upper grinder cutter disposed to face the lower grinder cutter, and the unit housing includes a lower grinder housing to which the lower grinder cutter is mounted, and the upper grinder cutter. And an upper grinder housing to which a grinder cutter is mounted, wherein the rotational force from the power unit is transmitted between the lower grinder cutter and the lower grinder housing in the direction of rotation of the unit power transmission unit and the grinder cutter. It may be further provided with a power transmission clutch for transmitting to.

In the grinder unit, the power transmission clutch includes: a clutch dome of a dome structure inclined in a radial direction from a center and a clutch extension portion radially extending on an outer edge of the clutch dome; An extension portion may be provided with a clutch cutter mounting portion extending toward the lower grinder cutter and engaged with the lower grinder cutter.

In the grind unit, the power transmission clutch may further include a clutch rib extending from the clutch extension part and contacting the pulverized object powder discharged between the upper grinder cutter and the lower grinder cutter.

In the grinder unit, a switch panel unit receiving a signal for adjusting a desired granularity of an object, a storage unit for storing a preset granularity adjustment value for the object, from the switch panel unit A control unit for applying a control signal to the cutter moving unit may be included based on an input signal and a value preset in the storage unit.

The grinder unit according to the present invention having the configuration as described above has the following effects.

First, the grinder unit according to the present invention provides a powder of a uniform particle size desired by a user to an object by providing object powder, such as coffee beans powder of consistent particle size, by automatically controlling the gap between the grinder cutters through a cutter moving part. It is possible to provide a grinder unit having a structure.

Secondly, the grinder unit according to the present invention achieves more accurate power transmission through the power transmission worm gear / gear wheel and power transmission clutch of the worm gear structure, thereby providing the user with a uniform particle size of ground coffee powder ground by driving force. can do.

Third, the grinder unit according to the present invention forms a dome-shaped clutch dome in the center of the power transmission clutch to enable more smooth discharge of the ground coffee powder in the grinder cutter inner space, thereby increasing durability of the unit and remaining residues. If possible, it may be accompanied by the effect of improving hygiene such as minimizing the possibility of bacterial occurrence.

Fourth, the grinder unit according to the present invention, through the clutch rib extending on the outer periphery of the power transmission clutch to facilitate the smooth discharge of the coffee beans powder pulverized in the grinder cutter smoothly to the coffee powder of the user's desired particle size At the same time, the durability of the grinder unit can be enhanced to minimize maintenance loads.

1 is a schematic partial sectional view of an automatic coffee machine including a grinder unit according to an embodiment of the present invention.

2 is a schematic cross-sectional view of a grinder unit according to an embodiment of the present invention.

3 is a schematic front sectional view of a structure including a lower grinder cutter of a grinder unit according to an embodiment of the present invention.

4 is another schematic cross-sectional view of the grinder unit in accordance with an embodiment of the present invention.

5 is a schematic perspective view of a grinder unit according to an embodiment of the present invention.

6 is a schematic plan view of a grinder unit according to an embodiment of the present invention.

7 is a schematic perspective view of a power transmission clutch of a grinder unit according to an embodiment of the present invention.

8 is a partially exploded perspective view of the configuration of the grinder unit according to an embodiment of the present invention.

9 is a block diagram of a grinder unit according to an embodiment of the present invention.

10 is a perspective partial cross-sectional view of the grinder unit in accordance with an embodiment of the present invention.

Hereinafter, a grinder unit according to the present invention will be described with reference to the drawings.

1 shows a schematic partial cross-sectional view of an automatic coffee machine 1 equipped with a grinder unit 10 according to an embodiment of the invention, and FIG. 2 shows a grinder unit 10 according to an embodiment of the invention. 3 and 3 show schematic front views of the upper and lower grinder cutters 350; 351 and 355 of the grinder unit 10 according to one embodiment of the invention. Another schematic cross-sectional view of the grinder unit 10 according to an embodiment of the present invention is shown, FIG. 5 is a schematic perspective view of the grinder unit 10 according to an embodiment of the present invention, and FIG. A schematic plan view of a grinder unit 10 according to an embodiment of the present invention is shown, and FIG. 7 is a schematic perspective view of a power transmission clutch 340 of the grinder unit 10 according to an embodiment of the present invention. Shown.

The grinder unit 10 of the present invention is mounted to the automatic coffee machine 1, more specifically, is provided in the machine housing 2 included in the automatic coffee machine 1. The grinder unit 10 of the present invention is mounted to the automatic coffee machine 1, more specifically, is provided in the machine housing 2 included in the automatic coffee machine 1. Coffee beans powder is disposed in the cylinder 30 through the hopper 20 to prevent the powder from being separated and the powder inside the cylinder is compressed and extracted with hot hot water. Although not shown in detail here, the automatic coffee machine 1 may further include other components such as a boiler (not shown). In addition, the case where the grinder unit 10 according to the present embodiment is mounted on the automatic coffee machine 1 will be described mainly. However, this is an example of the grinder unit 10 according to the present invention. Various modifications are possible, such as being formed in a structure that is mounted in conjunction with other devices.

The grinder unit 10 according to an embodiment of the present invention performs a function of pulverizing coffee beans as a provided object to a predetermined granularity. The grinder unit 10 includes a grinder unit housing 100 and a unit power unit ( 200, a grinder cutter 350, and a unit power transmission unit 300, the unit power unit 200, the grinder cutter 350, and the unit power transmission unit 300 are provided in the unit housing 100. It is placed stably.

The unit housing 100 includes a coffee bean accommodation housing 101, a cover housing 110, a body housing 120, a guide housing 130, a grinder housing 140, and a powder guide pipe housing 150. An opening is formed at an upper end of the coffee bean accommodating housing 101, and the coffee bean accommodating housing 101 has an opening having a cross-sectional area smaller than the upper end of the coffee bean accommodating housing 101 so that the coffee beans accommodated by the own weight are downward Take a structure to properly flow into the.

The cover housing 110 and the body housing 120 are disposed at the lower end of the coffee bean accommodating housing 101. The cover housing 110 and the body housing 120 are fastened to each other to form an internal space, thereby providing the grinder unit 10. To ensure that each component constituting the stable reception. The grinder cover housing 170 is disposed at the lower end of the coffee bean accommodating housing 101 as an inner space formed by the cover housing 110 and the body housing 120, and the grinder cover housing 170 is provided with the grinder housing 140. Connected. That is, the grinder housing 140 is disposed below the grinder cover housing 170, and the grinder housing 140 includes a lower grinder housing 141 and an upper grinder housing 145, and includes a lower grinder housing 141 and an upper part. The grinder housing 145 forms a grinder housing internal space, and the grinder cutter 350 is disposed in the grinder housing internal space that forms the lower grinder housing 141 and the upper grinder housing 145. In this case, one end of the lower grinder housing 141 is connected to one end of the grinder cover housing 170 and is fixed in position, and the upper grinder housing 145 is movably disposed on the upper part of the lower grinder housing 141.

The guide housing 130 enters the inner space through the upper ends of the cover housing 110 and the body housing 120. In the center of the guide housing 130, a guide housing through hole 131 is formed and the guide housing penetrates. The sphere 131 has a structure in which the guide housing mounting shaft 330 of the power transmission unit 300 described below is disposed through and supported by the guide housing 130 at one end thereof and the base housing 160 at the other end thereof. do. In some cases, the guide housing 130 may have a structure in which the guide housing 130 rotates together with the grinder cutter 350 by the turning force from the unit power unit 200. A spiral guide 133 (refer to FIG. 5) is disposed on an outer circumference of the guide housing 130. The spiral guide 133 accommodates coffee beans when the guide housing 130 rotates forward in a predetermined direction. It takes the structure which guides the coffee beans accommodated in the housing 101 downward. In some cases, the guide housing 130 may be configured to be rotatable in a direction opposite to forward rotation of guiding the coffee beans downward.

The upper grinder housing 145 and the grinder cover housing 170 are configured to engage with each other and the powder guide pipe housing 150 is disposed on the side of the lower grinder housing 141. The powder guide pipe housing 150 includes a powder guide first pipe housing 151 and a powder guide second pipe housing 153, wherein the powder guide second pipe housing 153 has a powder guide first pipe housing 151. Can be connected rotatably to one end of the. One end of the powder guide first pipe housing 151 is attached to the lower grinder housing outlet 144 formed on the side of the lower grinder housing 141, and the powder guide first pipe housing 151 and the powder guide second pipe housing The pulverized coffee bean powder discharged through the lower grinder housing discharge part 144 formed on the side of the lower grinder housing 141 may be moved through the 153.

In addition, a base housing 160 is disposed below the lower grinder housing 141, and the base housing 160 and the lower grinder housing 141 mesh with each other to form a space, in which the unit power transmission unit is described below. 300 and the unit power unit 200 is disposed.

The unit power unit 200 is disposed in the base housing 160. The unit power unit 200 is implemented as an electric motor in which the operation is determined according to a control signal applied by a controller (not shown) in the present embodiment. . The unit power unit 200 is mounted in a space formed at one side of the base housing 160. In this embodiment, the space in which the unit power unit 200 is formed is integrally formed in the base housing 160, but in some cases, the unit It is apparent from the above that the configuration may further be provided with a separate housing for accommodating the power unit 200.

The unit power transmission unit 300 is connected to the unit power unit 200, the unit power transmission unit 300 transmits the rotational force generated from the unit power unit 200 to the grinder cutter 350 to grinder cutter 350 ) Is guided by the guide housing 130 via the coffee bean receiving housing 101 to make it possible to grind coffee beans introduced into the space between the pair of grinder cutters 350; 351 and 355. In the present embodiment, the unit power transmission unit 300 includes a power transmission worm gear 310, a power transmission worm wheel 320, a guide housing mounting shaft 330, and a power transmission clutch 340. The 310 is coaxially connected with a rotation shaft (not shown) of the unit power unit 200 implemented by the electric motor and is engaged with the power transmission worm wheel 320. The rotation shaft of the power transmission worm wheel 320 has a structure that is perpendicular to the rotation shaft of the power transmission worm gear 310, the power transmission worm gear 310 and the power transmission worm wheel 320 is a unit power unit ( The power generated from 200 is converted into a high power turning force at a predetermined reduction ratio.

The rotation plane and the guide housing mounting shaft 330 where the power transmission worm wheel 320 is rotated take a vertically oriented structure, and the guide housing mounting shaft 330 is disposed through the power transmission worm wheel 320. . One end of the guide housing mounting shaft 330 is rotatably supported by the base housing 160 disposed through the power transmission worm wheel 330 and the other end of the guide housing mounting hole formed in the guide housing 130. 131 is disposed on the side of the guide housing 130 and is supported by an end formed inside the guide housing through hole 131, thereby enabling the guide housing 130 to be stably mounted.

The power transmission clutch 340 is disposed on an upper end of the power transmission worm wheel 320, and the power transmission clutch 340 receives the rotational force of the unit power unit 200 transmitted through the power transmission worm wheel 320. Directly to 350. The power transmission clutch 340 has a clutch shaft 347, as shown in Figures 3 and 7, the clutch shaft 347 is a power transmission worm in the center of the power transmission worm wheel 320 disposed below A wheel through hole 321 is provided, and the clutch shaft 347 is disposed through the power transmission worm wheel through hole 321. At this time, the inner surface of the power transmission worm wheel through hole 321 and the outer surface of the clutch shaft 347 is formed with a protrusion-groove structure corresponding to each other, and the projection structure is formed on each other and the outer surface of the clutch shaft 347 is formed. When the clutch shaft 347 is inserted into the power transmission worm wheel through hole 321, the clutch shaft 347 is engaged with each other so that relative rotational movement does not occur with each other, thereby completely transmitting the rotational force generated from the unit power unit 320. have.

When viewed in the axial length direction of the clutch shaft 347, a lower grinder housing 141 is disposed between the power transmission clutch 340 and the power transmission worm wheel 320 to reduce the speed of the gear transmission worm wheel and the gear transmission worm gear. The space in which the component that performs the function and other components are disposed may be partitioned. The lower grinder housing 141 has a structure that is fixed in position, and a clutch shaft bearing 360 is further disposed between the lower grinder housing 141 and the power transmission clutch 340 for stable rotation of the power transmission clutch 340. It may be provided. The outer circumferential surface of the clutch shaft bearing 360 contacts the inner surface of the lower grinder housing bearing accommodation portion 142 formed in the lower grinder housing 141, and the inner circumferential surface of the clutch shaft bearing 360 contacts the outer circumferential surface of the clutch shaft 347. In order to achieve stable support of the clutch shaft 347, but to allow a smooth relative rotation between the clutch shaft 347 and the lower grinder housing bearing accommodation portion 142, the smooth and stable rotation of the power transmission clutch 340 is ultimately achieved. This can be done.

A component for smoother rotation of the power transmission clutch 340 may be further provided on one surface where the body portion of the power transmission clutch 340 is disposed on one surface of the lower grinder housing 141. That is, a lower grinder housing ball bearing receiving part (not shown) is provided on one surface of the lower grinder housing 141 facing the body of the power transmission clutch 340, and the clutch ball bearing 370 is provided in the lower grinder housing ball bearing receiving part. ) May be arranged. Lower grinder housing ball bearing receiving portion (not shown) and the clutch ball bearing 370 is preferably provided with a plurality of structures to form a stable ground of the power transmission clutch 340. In some cases, in order to prevent the ground coffee powder pulverized between the upper grinder cutter 355 and the lower grinder cutter 351 undesirably flows into the clutch ball bearing 370, one surface of the lower grinder housing 141 The sealer accommodating portion 143 is provided on the outer side of the lower grinder housing ball bearing accommodating portion in which the clutch ball bearing 370 is disposed, i.e., the side away from the center, and the sealer accommodating portion 143 is provided with the sealer 380. May be further provided. In this embodiment, the sealer 380 is made of wool to allow smooth relative movement between the power transmission clutch 340 and the lower grinder housing 141, but a material is selected that can close the space between them and minimize the friction. Sealers of various materials may be arranged in the range to be made.

On the other hand, the power transmission clutch 340 according to the present invention may further include the following configuration. That is, as illustrated in FIGS. 3 and 7, the power transmission clutch 340 may further include a clutch dome 341 disposed at the center portion, and the clutch dome 341 may have a central portion of the power transmission clutch 340. It is formed in a dome structure having a curved slope disposed in and inclined in a spherical type radially from the center. In this case, a clutch through hole 342 is provided at the center of the clutch dome 341 to allow the guide housing mounting shaft 330 to pass therethrough. The clutch dome 341 of such a dome structure improves the discharge of coffee beans powder pulverized by the grinder cutter 350 disposed above the power transmission clutch 340 from the center to the radial direction, By providing a smooth coffee ground powder to provide a high quality, and also prevents the overload of the unit power unit caused by the coffee beans powder is not discharged smoothly in the outer radial direction from the inner space of the grinder cutter (350) The durability of the device can be improved.

In addition, the grinder cutter 350 is disposed above the power transmission clutch 340 according to the present invention, and the power transmission clutch 340 may further include a component for stably mounting and supporting the grinder cutter 350. have. The power transmission clutch 340 has a clutch extension 346 extending radially on the outer periphery of the clutch dome 341, from the clutch extension 346 to the grinder cutter 350, more specifically to the lower grinder cutter. A clutch cutter mounting portion 343 extending toward 351 and engaged with the lower grinder cutter 351 may be further provided. That is, the clutch cutter mounting portion 343 extends from the surface on which the lower grinder cutter 351 is disposed, and the clutch cutter mounting recess 344 is provided inside the clutch cutter mounting portion 343. The lower grinder cutter mounting portion 353 is formed to extend in the radial direction on the outer circumference of the lower grinder cutter 351. The lower grinder cutter mounting portion 353 is inserted into the clutch cutter mounting recess 344 from the side to be inserted into the lower grinder cutter ( By consolidating the fastening state between the 351 and the power transmission clutch 340, ultimately, the rotational force transmission generated from the unit power unit 200 may be smoothly performed (see FIG. 3).

The grinder cutter 350 includes an upper grinder cutter 355 and a lower grinder cutter 351. A relative rotational movement occurs between the upper grinder cutter 355 and the lower grinder cutter 351, and the upper grinder cutter 355 Cutter blades are formed on surfaces of the lower grinder cutter 351 facing each other, so that coffee beans introduced into the space therebetween may be ground.

As described above, the lower grinder cutter 355 is engaged with the power transmission clutch 340 so as to rotate relative to the lower grinder housing 141. The upper grinder cutter 355 is disposed facing the upper portion of the lower grinder cutter 351, and the upper grinder cutter 355 takes a structure that is mounted to the upper grinder housing 145. In the present exemplary embodiment, an upper grinder cutter fixture 147 (see FIG. 9) is further provided between the upper grinder cutter 355 and the upper grinder housing 145 for the stable mounting of the upper grinder cutter 355. 355) and the upper grinder housing 145 takes a structure, which is just an example for explaining the present invention according to the design specifications, such as may take a structure in which the upper grinder cutter is mounted directly on the upper grinder housing Various variations are possible. An upper grinder cutter through hole 357 is provided at the center of the upper grinder cutter 355 to allow the inflow of coffee beans. The upper grinder fixture 147 and the upper grinder housing 145 also have an upper grinder fixture through hole and an upper portion, respectively. The grinder housing through hole 146 is formed coaxially with the upper grinder cutter through hole 357 so that the inflow of coffee beans, ie, the inflow of coffee beans into the space between the upper grinder cutter 355 and the lower grinder cutter 351, is stable. Take a structure that can be made. At this time, as described above, the guide housing 130 having the spiral guide 133 formed on the outer circumferential surface of the upper grinder cutter through hole 357 is rotatably disposed to take a structure in which coffee beans flow more smoothly. As described above.

The upper grinder housing 147 is stably disposed in a space formed by the grinder cover housing 170 and the lower grinder housing 141. The upper grinder housing 147 on which the upper grinder cutter 355 is mounted is a lower grinder cutter. A component for achieving vertical movement in the rotational axis direction of the 351 is further provided. That is, as shown in Figures 5 and 6, the grinder unit 10 according to an embodiment of the present invention includes a cutter movable unit 400, the cutter movable unit 400 and the cutter movable motor and the cutter movable gear and It is equipped with a cutter movable gear wheel. The cutter movable gear wheel is formed in the upper grinder housing 170 and the cutter movable gear meshes with the cutter movable gear wheel, and the cutter movable motor is connected with the cutter movable gear to rotate the cutter movable gear. In this embodiment, the cutter movable part 400 takes a worm wheel structure to prevent the gap between the upper grinder wheel and the lower grinder wheel from changing due to the hardness difference of the coffee beans and to achieve smooth power transmission through deceleration. That is, as shown in Figures 5 and 6, the cutter movable motor 410 of the cutter movable unit 400 is implemented as an electric motor that operates in accordance with the electrical signal of the controller (not shown), the cutter movable gear is a worm gear The cutter movable worm gear 420 has a structure, and the cutter movable worm gear 420 is connected to the cutter movable motor 410 and disposed coaxially with the cutter movable motor 410. The cutter movable gear wheel is implemented by the cutter movable worm gear wheel 430, and the cutter movable worm gear wheel 430 is engaged with the cutter movable worm gear 420 to receive the power generated from the cutter movable motor 410. In this embodiment, the cutter movable worm gear wheel 430 is formed on the outer circumference of the upper grinder housing 147, when the user manipulates the switch panel unit 20 (see FIG. 10) to adjust the grain size of the coffee beans. According to the input signal, the control unit 30 communicates with the storage unit 40 and stores the predetermined preset stored value for the operation mode corresponding to the selection signal input by the user through the switch panel unit 20. Output from 40 and apply a predetermined control signal based on this. The control unit 30 is in electrical communication with the unit power unit 200 and the cutter movable motor 410, the control signal corresponding to the grain size of the beans selected by the user is output from the control unit 30 to the output control signal Accordingly, the cutter movable motor 410 is operated. In accordance with the operation of the cutter movable motor 410, the cutter movable worm gear 420 rotates, and the cutter movable worm gear wheel 430 engaged with the cutter movable worm gear 420 also rotates. At this time, the upper grinder housing 145 in which the cutter movable worm gear wheel 430 is integrally formed on the outer circumferential surface of the upper grinder housing 145 also moves up or down in the axial direction of the lower grinder cutter 141 and is mounted on the upper grinder housing 145 at the same time. The upper grinder cutter 355 is also raised or lowered together and positioned so that the gap between the upper grinder cutter 355 and the lower grinder cutter 351 is adjusted according to a condition selected by the user, and the coffee beans flow into the interspace. The particle size of the crushed can be adjusted. Although not shown here, the granularity adjustment selected by the switch panel unit 20 may be preset in several preset modes and stored in the storage unit 40, depending on the mode selected by the user along the switch panel unit. The control unit compares the preset value with the storage unit and transmits a control signal corresponding thereto to the cutter movable motor 410 to shift the upper grinder housing 145 to a predetermined position, thereby causing the upper grinder cutter 355 and the lower grinder cutter to move. The distance between the 351 may be kept constant to provide coffee beans powder of a desired particle size.

In addition, a component for smoothly discharging the ground coffee powder pulverized in the space between the present upper grinder cutter 355 and the lower grinder cutter 351 may be further provided. As illustrated in FIG. 7, a clutch rib 345 is further provided from the clutch extension 346 of the power transmission clutch 340 toward the direction in which the grinder cutter 350 is disposed. The clutch rib 345 is further provided. ) Is in contact with the ground coffee bean powder discharged between the upper grinder cutter 355 and the lower grinder cutter 351. That is, the ground coffee powder pulverized in the space between the upper grinder cutter 355 and the lower grinder cutter 351 is transferred in a radial direction and ejected to the outer periphery of the upper grinder cutter 355 and the lower grinder cutter 351. In the relative rotational movement between the upper grinder cutter 355 and the lower grinder cutter 351 rotated and positioned together with the clutch rib 345 extending from the power transmission clutch 340 rotating with the transmission worm wheel 320, The clutch rib 345 makes a relative rotational movement near the outer circumference of the upper grinder cutter 355 and the lower grinder cutter 351, more specifically, the outer circumference of the upper grinder cutter 355, so that the clutch rib 345 has an upper portion. By periodically removing the coffee beans powder discharged from between the grinder cutter 355 and the lower grinder cutter 351, the coffee beans are not blocked in these areas, It may be such that the discharge. Therefore, the coffee ground powder smoothly discharged through the clutch rib 345 which makes a relative rotational movement in close proximity to the outer periphery of the upper grinder cutter 355 as described above is formed in the lower grinder housing 141. The discharge unit 144 may be smoothly discharged through the powder guide pipe housing 150.

The above embodiments are examples for describing the present invention, but the present invention is not limited thereto. That is, the grinder unit may be used as an independent grinder for crushing nuts or the like in addition to an automatic coffee machine, or may be configured to be built in another device.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

In recent years, the demand for coffee is exploding according to various preferences of consumers, and the demand for coffee machines is increasing in accordance with the increase in the number of shops and specialization of consumers.

The grinder unit according to the present invention is capable of providing a powder of a uniform particle size desired by a user to an object by automatically controlling a gap between the grinder cutters through a cutter moving part to provide an object powder such as coffee beans powder of a consistent particle size. It is possible to provide a grinder unit of the structure.

Claims

Grinder unit housing,

A unit power unit mounted to the grinder unit housing;

A pair of grinder cutters rotatably mounted to the grinder unit housing;

A unit power transmission unit which connects the unit power unit and the grinder cutter so that an object is crushed by the grinder cutter received the rotational force from the unit power unit;

And a cutter movable portion for adjusting a pair of grinder cutter gaps arranged to face each other.
The method of claim 1,

The grinder cutter includes a lower grinder cutter and an upper grinder cutter disposed on the lower grinder cutter,

The unit housing includes a lower grinder housing to which the lower grinder cutter is mounted, and an upper grinder housing to which the upper grinder cutter is mounted.

The cutter moving part:

A cutter movable gear wheel formed on the upper grinder housing;

A cutter movable gear engaged with the cutter movable worm wheel,

And a cutter movable motor connected to the cutter movable gear to rotate the cutter movable gear.
The method of claim 2,

And the cutter movable gear wheel and the cutter movable gear are formed in a worm gear structure.
The method of claim 1,

The grinder cutter includes a lower grinder cutter and an upper grinder cutter disposed to face the lower grinder cutter,

The unit housing includes a lower grinder housing to which the lower grinder cutter is mounted, and an upper grinder housing to which the upper grinder cutter is mounted.

And a power transmission clutch for transmitting the rotational force from the power unit to the lower grinder cutter between the lower grinder cutter and the lower grinder housing in a direction of rotation of the unit power transmission unit and the grinder cutter. Grinder unit.
The method of claim 4, wherein

The power transmission clutch is:

A clutch dome having a dome structure in the center portion and inclined radially from the center,

A clutch extension part extending in a radial direction on an outer edge of the clutch dome;

And a clutch cutter mounting portion extending toward the lower grinder cutter to the clutch extension portion and engaged with the lower grinder cutter.
The method of claim 5,

The power transmission clutch further includes a clutch rib extending from the clutch extension part and contacting the pulverized object powder discharged between the upper grinder cutter and the lower grinder cutter.
The method of claim 1,

A switch panel unit configured to receive a signal for adjusting a desired granularity of the object;

A storage unit for storing preset values for adjusting the granularity of the object;

And a control unit for applying a control signal to the cutter movable unit based on an input signal from the switch panel unit and a value preset in the storage unit.