CN215502590U

CN215502590U - Device for grinding coffee bean granules by double grinding groups

Info

Publication number: CN215502590U
Application number: CN202121162462.5U
Authority: CN
Inventors: 刘锦松; 许逸伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-14
Filing date: 2021-05-27
Publication date: 2022-01-14
Anticipated expiration: 2031-05-27
Also published as: TWM602392U

Abstract

A device for grinding coffee beans by double grinding groups comprises a first grinding group and a second grinding group positioned at the front stage of the first grinding group, wherein the first grinding group comprises a first grinding seat, a first conical cutter and a first driving shaft, a first grinding gap is formed between the first conical cutter and the first grinding seat, and the width of the first grinding gap is independently adjusted by the first grinding group. The second grinding group comprises a second grinding seat, a second conical cutter and a second driving shaft, the second driving shaft and the first driving shaft are coaxially arranged and form linkage, a second grinding gap is formed between the second conical cutter and the second grinding seat, the width of the second grinding gap is independently adjusted by the second grinding group, and the width of the second grinding gap can be adjusted to be different from that of the first grinding gap.

Description

Device for grinding coffee bean granules by double grinding groups

Technical Field

The present invention relates to a device for grinding coffee beans, and more particularly, to a device for grinding coffee beans by using a double grinding set.

Background

Many of the existing bean grinding devices are commonly used to grind coffee beans in a single grinding group, as disclosed in the patent documents TW M580938, TW M577297, TW M562084, TW I513440, TW M474451, etc. However, the coffee powder ground by the above structure is prone to have a problem of obviously uneven particle size, which results in that the flavor of the coffee powder during brewing is not presented optimally.

However, although the coffee machine disclosed in TW M417875 includes two grinding sets, it can be clearly understood from the description and the drawings that the two grinding sets share the same driving shaft, so that the two grinding sets cannot be adjusted individually during the adjustment of the grinding gap, and are not easily adjusted to the desired grinding gap.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to solve the problem that the existing structure cannot independently adjust the grinding gap.

The utility model aims to solve the problem that the existing grinding structure is easy to cause obvious uneven particle sizes.

To achieve the above object, the present invention provides an apparatus for grinding coffee beans by a double grinding set, comprising:

a first grinding group, which comprises a first grinding seat, a first conical cutter matched with the first grinding seat and a first driving shaft connected with the first conical cutter, wherein a first grinding gap is formed between the first conical cutter and the first grinding seat, and the width of the first grinding gap is independently adjusted by the first grinding group; and

the second grinding group is positioned at the front stage of the first grinding group and comprises a second grinding seat, a second conical cutter matched with the second grinding seat and a second driving shaft which is connected with the second conical cutter and is interlocked with the first driving shaft, the second driving shaft and the first driving shaft are coaxially arranged and form linkage, a second grinding gap is formed between the second conical cutter and the second grinding seat, the second grinding group independently adjusts the width of the second grinding gap, and the width of the second grinding gap can be adjusted to be different from the width of the first grinding gap.

The device for grinding coffee beans by the double grinding group is characterized in that the second grinding gap width is larger than the first grinding gap width.

The device for grinding coffee beans by the double grinding groups is characterized in that a polygonal hole is formed at one end, connected with the second driving shaft, of the first driving shaft, and a polygonal head matched with the polygonal hole is formed at one end, connected with the first driving shaft, of the second driving shaft.

The device for grinding coffee beans by the double grinding groups comprises a first bearing seat for providing the first grinding seat, a second bearing seat for providing the second grinding seat, and a barrel body arranged between the first bearing seat and the second bearing seat.

The device for grinding coffee beans by the double grinding groups is characterized in that the first bearing seat forms a first feeding inclined plane and a first supporting arm which extends from the first feeding inclined plane and provides the first driving shaft for penetrating through on one side facing the second bearing seat, and the second bearing seat forms a second feeding inclined plane and a second supporting arm which extends from the second feeding inclined plane and provides the second driving shaft for penetrating through on one side not facing the first bearing seat.

The device for grinding coffee beans by the double grinding group comprises a second conical cutter, a second driving shaft, a second bearing plate and a second positioning assembly, wherein the second conical cutter can slide along the second driving shaft, the second grinding group is provided with the second bearing plate which is arranged on the second driving shaft and provides the second conical cutter to be supported on, the second positioning assembly is abutted against the top end of the second conical cutter, the second bearing plate and the second conical cutter form a linkage relation through a second linkage structure, and the second linkage structure is a second hole and a second column matched with the second hole, which are respectively arranged on the second bearing plate and the second conical cutter.

The device for grinding coffee beans by the double grinding set is characterized in that the first conical cutter can slide along the first driving shaft, the first grinding set is provided with a first bearing plate arranged on the first driving shaft and provided with the first conical cutter bearing and a first positioning component abutted against the top end of the first conical cutter, the first bearing plate and the first conical cutter form a linkage relation through a first linkage structure, and the first linkage structure is a first hole arranged on the first bearing plate and the first conical cutter respectively and a first column matched with the first hole.

The device for grinding coffee beans by using the double grinding group comprises a first pressing part arranged on the first driving shaft and positioned above the first conical cutter, a first fixing part arranged on the first driving shaft and spaced from the first pressing part, a first pressure spring arranged between the first pressing part and the first fixing part and normally applying an acting force towards the first conical cutter to the first pressing part, a second pressing part arranged on the second driving shaft and positioned above the second conical cutter, a second fixing part arranged on the second driving shaft and spaced from the second pressing part, and a second pressure spring arranged between the second pressing part and the second fixing part and normally applying an acting force towards the second conical cutter to the second pressing part.

The device for grinding coffee beans by the double grinding group comprises a first grinding group, a second grinding group and a third grinding group, wherein the first grinding group comprises an adjusting ring corresponding to the first grinding seat, at least one first supporting spring corresponding to the adjusting ring and an operating ring corresponding to the adjusting ring, the adjusting ring is provided with at least one continuous step-shaped structure, the operating ring is provided with at least one contact column facing the continuous step-shaped structure to abut against one of the steps of the continuous step-shaped structure, and the position of the first grinding seat relative to the first conical cutter is determined by the position of the contact column abutting against the continuous step-shaped structure.

Compared with the prior art, the utility model has the following characteristics: although the dual grinding sets are linked, the grinding gap can be independently adjusted by the first grinding set and the second grinding set, so that the grinding requirement of coffee beans can be met. On the other hand, during grinding, the coffee bean particles are ground twice with different parameters, so that the particle size of the ground coffee powder tends to be average.

The utility model is described in detail below with reference to the drawings and specific examples, but the utility model is not limited thereto.

Drawings

FIG. 1 is a sectional view of an apparatus for grinding coffee beans with a double grinding set according to an embodiment of the present invention;

FIG. 2 is an exploded view of a first polishing pad of one embodiment of the present invention;

FIG. 3 is a cross-sectional view of a first polishing pad of an embodiment of the present invention;

FIG. 4 is an exploded view of a second polishing pad of one embodiment of the present invention;

FIG. 5 is a cross-sectional view of a second polishing group according to one embodiment of the present invention.

Wherein the reference numerals

10 device

11: first bearing seat

111 first feeding inclined plane

112 first support arm

113 contact column

12: second bearing seat

121: second feeding inclined plane

122 second support arm

13: barrel body

14: base

20 first polishing group

21 the first grinding seat

22 first conical cutter

23 first driving shaft

231 polygonal hole

24 first grinding gap

25 first carrier plate

26 first positioning component

261 first pressing piece

262 first fixing part

263 first pressure spring

27 first linkage structure

271 first hole

272 first column

28 adjusting ring

281 continuous step structure

29 first supporting spring

30 operating ring

40 second grinding group

41 second grinding seat

42 parts of second conical cutter

43 second drive shaft

431 polygonal head

44 second grinding gap

45: second carrier plate

46 second positioning assembly

461 second pressing piece

462 second fixing part

463 second pressure spring

47 second linkage mechanism

471: second aperture

472 the second column

Detailed Description

The present invention is described in detail and technical content with reference to the accompanying drawings, wherein:

referring to fig. 1, the present invention provides an apparatus 10 for grinding coffee beans with two grinding groups, the apparatus 10 includes a first grinding group 20 and a second grinding group 40 located at a front stage of the first grinding group 20, and further, the second grinding group 40 is located right above the first grinding group 20, during the grinding process of the coffee beans, the second grinding group 40 is given a coarse grinding task, and the first grinding group 20 is given a fine grinding task to the coarse ground coffee beans.

The structure of the first polishing group 20 and the second polishing group 40 will be described later. Referring to fig. 2 to 3, the first polishing group 20 includes a first polishing base 21, a first conical cutter 22 engaged with the first polishing base 21, and a first driving shaft 23 connected to the first conical cutter 22, a first polishing gap 24 is formed between the first conical cutter 22 and the first polishing base 21, and the first polishing group 20 can independently adjust the width of the first polishing gap 24. In one embodiment, the first conical cutter 22 can slide along the first driving shaft 23, and the first polishing assembly 20 has a first carrier plate 25 disposed on the first driving shaft 23 and providing the first conical cutter 22 to be supported thereon, and a first positioning assembly 26 abutting against the top end of the first conical cutter 22. The first bearing plate 25 and the first cone cutter 22 form a linkage relationship by a first linkage structure 27, and the first linkage structure 27 is a first hole 271 and a first post 272 respectively disposed on the first bearing plate 25 and the first cone cutter 22, and the first post is matched with the first hole 271. In the embodiment disclosed in the drawings, the first hole 271 is temporarily disposed on the first conical cutter 22, and the first pillar 272 is disposed on the first support plate 25, which is not limited to the embodiment. Before the first conical cutter 22 is received, the first conical cutter 22 can slide along the first driving shaft 23, and it is obvious that the first conical cutter 22 is provided with the first driving shaft 23 to penetrate through but is not in close fit or fixed relation with the first driving shaft 23. After the first carrier plate 25 is mounted, it will rotate with the first driving shaft 23, and the first cone cutter 22 will be linked to rotate by the first linking structure 27. On the other hand, the position of the first bearing plate 25 can be adjusted according to the requirement, specifically, the first driving shaft 23 can be provided with a thread on the section allowing the position of the first bearing plate 25 to be changed, the first bearing plate 25 is provided with another thread on the periphery of the hole for the first driving shaft 23 to penetrate, and the position of the first bearing plate 25 can be adjusted by the two threads. In addition, the first conical cutter 22 is supported on the first carrier plate 25, and as long as the position of the first carrier plate 25 on the first driving shaft 23 is changed, the position of the first conical cutter 22 corresponding to the first grinding seat 21 is changed relatively, so as to change the width of the first grinding gap 24.

In addition, in one embodiment, the first polishing group 20 can achieve fine adjustment of the first polishing gap 24 with the aforementioned structure, and can further generate a step adjustment of the first polishing gap 24 with another structure to generate a coarse adjustment different from the aforementioned structure. More specifically, the first polishing group 20 includes an adjusting ring 28 disposed corresponding to the first polishing seat 21, at least one first supporting spring 29 disposed corresponding to the adjusting ring 28, and an operation ring 30 disposed corresponding to the adjusting ring 28. Wherein, the adjusting ring 28 is provided with at least one continuous step structure 281, the continuous step structure 281 is disposed along an arc line, when the adjusting ring 28 is provided with a plurality of continuous step structures 281, the plurality of continuous step structures 281 are disposed at intervals, and the distance between any two continuous step structures 281 is equal. In addition, the first supporting springs 29 of the present embodiment are not limited to a single implementation, but the number of the first supporting springs 29 may be determined according to the type of the first supporting springs 29, one side of the first supporting springs 29, which is not opposite to the adjusting ring 28, is abutted against a base 14 to which the apparatus 10 belongs, and the adjusting ring 28 and the operating ring 30 are interposed between the base 14 and the first bearing 11. The first support spring 29 is used to support the adjusting ring 28, so that the adjusting ring 28 normally receives a force pushing toward the operating ring 30. In addition, the first bearing seat 11 is stacked on the adjusting ring 28, at least one contact pillar 113 facing the continuous stepped structure 281 is formed on one side of the first bearing seat 11 facing the adjusting ring 28 to abut against one of the steps to which the continuous stepped structure 281 belongs, the position of the first grinding seat 21 relative to the first conical cutter 22 is determined by the position of the contact pillar 113 abutting against the continuous stepped structure 281, in an embodiment of the present invention, the position of the contact pillar 113 is fixed, the adjusting ring 28 is driven by the operating ring 30 to rotate relative to the first bearing seat 11 and the base 14, and the position of the continuous stepped structure 281 abutted against by the contact pillar 113 is changed. For details of the structure of the present embodiment, reference may be made to the patent application No. 109100470 in taiwan of the applicant of the present application, which is not described herein again.

Referring to fig. 4 and 5, as mentioned above, the second grinding assembly 40 includes a second grinding seat 41, a second bevel 42 engaged with the second grinding seat 41, and a second driving shaft 43 connected to the second bevel 42 and linked with the first driving shaft 23. A second polishing gap 44 is formed between the second taper cutter 42 and the second polishing seat 41, the width of the second polishing gap 44 can be independently adjusted by the second polishing group 40, and the width of the second polishing gap 44 can be adjusted to be different from the width of the first polishing gap 24. Further, the second polishing gap 44 is wider than the first polishing gap 24. In one embodiment, the second bevel blade 22 can slide along the second drive shaft 43, and the second grinding unit 40 has a second carrier plate 45 disposed on the second drive shaft 43 and supporting the second bevel blade 42 thereon, and a second positioning assembly 46 abutting against the top end of the second bevel blade 42. The second supporting plate 45 and the second conical cutter 42 form a linkage relationship by a second linkage structure 47, and the second linkage structure 47 is a second hole 471 and a second post 472 matching with the second hole 471 respectively disposed on the second supporting plate 45 and the second conical cutter 42. In the embodiment disclosed in the drawings, the second hole 471 is temporarily disposed on the second cone 42, and the second pillar 472 is disposed on the second support plate 45 for example, but the utility model is not limited thereto. Similarly, the second taper cutter 42 is not in a close-fitting or fixed relationship with the second drive shaft 43 so that the second taper cutter 42 can slide along the second drive shaft 43. After the second support plate 45 is mounted on the second driving shaft 43, it will rotate along with the second driving shaft 43, and when the second support plate 45 rotates, the second linkage structure 47 will drive the second cone 42 to rotate. On the other hand, the second supporting plate 45 can be operated to adjust its position so as to adjust the width of the second polishing gap 44. Specifically, the second driving shaft 43 may be provided with a thread on a section predetermined to be assembled with the second support plate 45, the second support plate 45 is provided with another thread on the periphery of the hole for the second driving shaft 43 to pass through, and the two threads are used to adjust the position of the second support plate 45. When the second carrier plate 45 is changed to the position on the second driving shaft 43, the second bevel 42 is changed to the position relative to the second grinding seat 41, and the width of the second grinding gap 44 is changed accordingly.

In summary, in the present invention, when the apparatus 10 is implemented, the second grinding group 40 firstly receives the unground coffee beans, after grinding starts, the second grinding group 40 is linked with the first grinding group 20, coarse coffee particles produced by grinding by the second grinding group 40 fall directly to the first grinding group 20, and the first grinding group 20 grinds the coffee particles again, so that the first grinding group 20 can grind the particles more uniformly because the particles ground by the first grinding group 20 are not originally larger coffee beans. In addition, the first grinding gap 24 and the second grinding gap 44 are independently adjusted according to the implementation requirement, so that the device 10 can meet the grinding requirement of various coffee beans, and the ground coffee powder can present better flavor during brewing.

Referring to fig. 1 to 5, in order to generate linkage between the first driving shaft 23 and the second driving shaft 43 belonging to two separable shaft elements, in one embodiment, a polygonal hole 231 is formed at one end of the first driving shaft 23 connected to the second driving shaft 43, and a polygonal head 431 matched with the polygonal hole 231 is formed at one end of the second driving shaft 43 connected to the first driving shaft 23. Although the present invention has been described by way of example, the polygonal hole 231 and the polygonal head 431 may be arranged in an interchangeable manner. Moreover, the rotation of the first driving shaft 23 and the second driving shaft 43 can be implemented by a manual structure or an electric structure, which is well known in the art and will not be described herein again.

Furthermore, in one embodiment, the apparatus 10 has a first seat 11 for providing the first grinding seat 21, a second seat 12 for providing the second grinding seat 41, and a barrel 13 disposed between the first seat 11 and the second seat 12. On the other hand, the first bearing seat 11 forms a first feeding inclined plane 111 on the side facing the second bearing seat 12 and a first supporting arm 112 extending from the first feeding inclined plane 111 and providing the first driving shaft 23 to penetrate therethrough, and the second bearing seat 12 forms a second feeding inclined plane 121 on the side not facing the first bearing seat 11 and a second supporting arm 122 extending from the second feeding inclined plane 121 and providing the second driving shaft 43 to penetrate therethrough.

Referring to fig. 2 to 3, the structure of the first positioning assembly 26 and the second positioning assembly 46 is described in an embodiment, the first positioning assembly 26 includes a first pressing member 261 disposed on the first driving shaft 23 and located above the first awl knife 22, a first fixing member 262 disposed on the first driving shaft 23 and spaced from the first pressing member 261, and a first pressure spring 263 disposed between the first pressing member 261 and the first fixing member 262 and normally applying a force to the first pressing member 261 in a direction toward the first awl knife 22. The first pressing member 261 contacts the first conical cutter 22 for a long time, and when the first conical cutter 22 is lifted by the action of the first bearing plate 25, the first pressing spring 263 is pressed along with the lifting of the first conical cutter 22, at this time, the first pressing spring 263 is pressed to store the reset energy, once the first conical cutter 22 is lifted, the first pressing member 263 releases the energy to push the first pressing member 261, so that the first pressing member 261 is always and specifically pressed against the top end of the first conical cutter 22, and the first conical cutter 22 is prevented from generating error displacement during grinding. On the other hand, referring to fig. 4 and 5, the second positioning assembly 46 includes a second pressing member 461 disposed on the second driving shaft 43 and located above the second conical cutter 42, a second fixing member 462 disposed on the second driving shaft 43 and spaced apart from the second pressing member 461, and a second pressing spring 463 disposed between the second pressing member 461 and the second fixing member 462 and normally applying a force to the second pressing member 461 in a direction toward the second conical cutter 42. The second fixing element 46 works in the same manner as the first fixing element 26, and is not described herein again.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. An apparatus for grinding coffee beans with a double grinding train, comprising:

2. The apparatus of claim 1, wherein the second grinding gap width is greater than the first grinding gap width.

3. The apparatus of claim 2, wherein the first driving shaft defines a polygonal opening at an end thereof coupled to the second driving shaft, and the second driving shaft defines a polygonal head at an end thereof coupled to the first driving shaft.

4. The apparatus of claim 1, wherein the first driving shaft defines a polygonal opening at an end thereof coupled to the second driving shaft, and the second driving shaft defines a polygonal head at an end thereof coupled to the first driving shaft.

5. The apparatus of claim 1, wherein the apparatus comprises a first seat for providing the first grinding base, a second seat for providing the second grinding base, and a barrel disposed between the first seat and the second seat.

6. The apparatus of claim 5, wherein the first holder defines a first feeding slant and a first support arm extending from the first feeding slant for the first driving shaft to pass through on a side facing the second holder, and the second holder defines a second feeding slant and a second support arm extending from the second feeding slant for the second driving shaft to pass through on a side not facing the first holder.

7. The apparatus for grinding coffee beans with the double grinding set as claimed in any one of claims 1 to 6, wherein the second conical cutter can slide along the second driving shaft, the second grinding set has a second carrier plate disposed on the second driving shaft and providing the second conical cutter to be supported thereon and a second positioning assembly abutting against a top end of the second conical cutter, the second carrier plate and the second conical cutter form a linkage relationship with a second linkage structure, the second linkage structure is a second hole disposed on the second carrier plate and the second conical cutter respectively and a second column engaged with the second hole.

8. The apparatus of claim 7, wherein the first conical cutter is capable of sliding along the first driving shaft, the first grinding assembly has a first supporting plate disposed on the first driving shaft and providing a bearing for the first conical cutter, and a first positioning component abutting against a top end of the first conical cutter, the first supporting plate and the first conical cutter form a linkage relationship with a first linkage structure, the first linkage structure is a first hole disposed on the first supporting plate and the first conical cutter, and a first post engaged with the first hole.

9. The apparatus of claim 8, wherein the first positioning assembly comprises a first pressing member disposed on the first driving shaft and above the first awl, a first fixing member disposed on the first driving shaft and spaced apart from the first pressing member, a first compression spring disposed between the first pressing member and the first fixing member and normally applying a force to the first pressing member in a direction toward the first awl, the second positioning assembly comprises a second pressing member disposed on the second driving shaft and above the second awl, a second fixing member disposed on the second driving shaft and spaced apart from the second pressing member, and a second compression spring disposed between the second pressing member and the second fixing member and normally applying a force to the second pressing member in a direction toward the second awl.

10. The apparatus of claim 9, wherein the first grinding set comprises an adjusting ring disposed corresponding to the first grinding seat, at least one first supporting spring disposed corresponding to the adjusting ring, and an operating ring disposed corresponding to the adjusting ring, the adjusting ring has at least one continuous step structure, the operating ring has at least one contact pillar facing the continuous step structure to abut against one of the steps of the continuous step structure, and the position of the first grinding seat relative to the first conical cutter is determined by the position of the contact pillar abutting against the continuous step structure.

11. The apparatus of claim 8, wherein the first grinding set comprises an adjusting ring disposed corresponding to the first grinding seat, at least one first supporting spring disposed corresponding to the adjusting ring, and an operating ring disposed corresponding to the adjusting ring, the adjusting ring has at least one continuous step structure, the operating ring has at least one contact pillar facing the continuous step structure to abut against one of the steps of the continuous step structure, and the position of the first grinding seat relative to the first conical cutter is determined by the position of the contact pillar abutting against the continuous step structure.