CN109091007B - Bean grinding device of coffee machine - Google Patents
Bean grinding device of coffee machine Download PDFInfo
- Publication number
- CN109091007B CN109091007B CN201811265708.4A CN201811265708A CN109091007B CN 109091007 B CN109091007 B CN 109091007B CN 201811265708 A CN201811265708 A CN 201811265708A CN 109091007 B CN109091007 B CN 109091007B
- Authority
- CN
- China
- Prior art keywords
- shell
- transmission gear
- grinding device
- ring
- bean grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/42—Beverage-making apparatus with incorporated grinding or roasting means for coffee
Abstract
The invention discloses a bean grinding device of a coffee machine, which comprises a shell with an upper feed inlet, wherein a cutter sleeve and a cutter head positioned in the cutter sleeve are arranged in the shell, a powder outlet for coffee powder to vertically fall down is arranged at the lower part of the shell, the cutter head and the shell are relatively static, a transmission gear driven by a motor is rotatably arranged in the shell, and the cutter sleeve and the transmission gear are circumferentially limited. The bean grinding device of the coffee machine has smooth and smooth powder outlet process and avoids the blockage of coffee powder.
Description
Technical Field
The invention relates to a part of a coffee machine, in particular to a bean grinding device of the coffee machine.
Background
The coffee machine is internally provided with a bean grinding device for stirring and grinding coffee beans into bean powder. The bean grinding device in the prior art is a transverse powder discharging structure and comprises a shell, a cutter sleeve is fixed in the shell, a conical hole with a large upper part and a small lower part is formed in a center hole of the cutter sleeve, a spindle driven by a motor is rotatably arranged in the shell, a powder throwing disc and a conical cutter head with a large upper part and a large lower part are fixed on the spindle, the cutter head is positioned in the center hole of the cutter sleeve, coffee beans fall to the powder throwing disc after being ground into powder in a gap between the cutter head and the cutter sleeve, are centrifugally thrown out from a powder outlet on the side face of the shell, and fall into a powder discharging funnel through a transverse channel.
The bean grinding device of the coffee machine in the prior art has the following defects: firstly, the coffee powder is transversely thrown out by the bean grinding device through the centrifugal force generated by the rotation of the powder throwing disc, the throwing power is slightly insufficient, and the coffee powder needs to pass through the transverse channel, so that the coffee powder cannot be prevented from being partially remained in the transverse channel, the residual powder is easy to deteriorate, and the taste of the coffee is influenced; moreover, long-term residual powder is accumulated continuously and even blocks the channel, so that the normal powder discharging process is interfered.
Disclosure of Invention
The invention aims to solve the technical problem of providing a bean grinding device of a coffee machine, which can enable a powder outlet process to be smooth and avoid blockage of coffee powder.
The technical scheme is that the bean grinding device of the coffee machine comprises a shell with an upper feed inlet, a cutter sleeve and a cutter head positioned in the cutter sleeve are arranged in the shell, a powder outlet for coffee powder to vertically fall down is formed in the lower portion of the shell, the cutter head and the shell are relatively static, a transmission gear driven by a motor is rotatably arranged in the shell, and the cutter sleeve and the transmission gear are circumferentially limited.
The working process of the bean grinding device of the coffee machine is as follows: the motor drives the cutter sleeve to rotate relative to the shell through the transmission gear, and the cutter head and the shell keep static, so that coffee beans enter the shell of the bean grinding device through the feed inlet, the gap between the cutter head and the cutter sleeve is ground into powder through the rotation of the cutter sleeve, coffee powder vertically falls down, falls from the powder outlet and is stored by the coffee powder collecting device.
Compared with the prior art, the bean grinding device of the coffee machine adopting the structure has the following advantages: firstly, the device has realized that coffee powder is vertical to direct whereabouts, for the horizontal play powder of prior art, the technical scheme of this application goes out the powder process smooth and easy, not blockking up, it is not residual, play powder function is reliable and stable, the taste of coffee has been guaranteed, and more importantly, the grinding structure of this application is that the tool bit in the middle is motionless and peripheral cover rotates, the advantage of this grinding structure needs dialectical seeing, all grinding device of prior art like the bean grinder of soybean milk machine, the beaten machine, or the bean grinder of coffee machine etc. are that center tool bit drive rotates and peripheral cover is irrotational, in this way, the middle tool bit need install on the transmission shaft, in order to vacate the space of feeding and play powder, the transmission shaft is difficult to install the bearing at upper and lower both ends, and the transmission shaft is elongated structure again, only one end installation bearing can lead to the concentricity poor, the free end slope of axle can not be guaranteed to the tool bit in the center of tool bit, influence normal grinding process and life, stability is poor, but adopt the structure that the middle tool bit of this invention is motionless and peripheral cover rotates, just above-mentioned, the concentricity is just good, long service life is just overcome.
Preferably, the shell bottom plate is provided with a central hole, a mounting seat is arranged in the central hole, a connecting rib is arranged between the mounting seat and the central hole, the cutter head is fixed on the mounting seat, and gaps among the central hole, the mounting seat and the connecting rib form a powder outlet. The structure realizes the connection and fixation of the cutter head and the shell, and the design of the connecting ribs not only ensures the structural firmness, but also vacates a larger area as much as possible for the coffee powder to pass through.
As a further preferable mode, the upper part of the cross section of each connecting rib is in a pointed cone shape, so that the upper parts of the connecting ribs are sharp two inclined planes, coffee powder is prevented from being accumulated on the connecting ribs, and smooth powder falling of the powder outlet is ensured.
The connection structure of the transmission gear and the shell is preferably as follows: the transmission gear comprises a guide ring at the upper part and a gear ring at the middle part, the guide ring is connected with the side wall of the shell through an upper bearing, a limiting convex ring is arranged on the bottom plate of the shell, the lower part of the transmission gear is sleeved outside the limiting convex ring, and the lower part of the transmission gear is connected with the limiting convex ring through a lower bearing; therefore, the structure is convenient to assemble, and the structure is only needed to be sleeved in sequence and clamped with each other; moreover, the transmission gear is connected through the upper bearing and the lower bearing, so that the concentricity is better, the operation is more stable, the deflection deformation is not easy, and the service life can be prolonged.
As a further improvement, the upper part of the cutter sleeve is externally protruded with a waist-shaped limit edge, the top of the transmission gear is provided with an inward flanging, the bottom surface of the inward flanging is provided with a waist-shaped notch, and the inward flanging positioned at two sides of the waist-shaped notch is provided with a bayonet; the bean grinding device also comprises a clamping ring with buckles at two sides, wherein the top annular surface of the clamping ring pushes the waist-shaped limiting edge of the cutter sleeve into the waist-shaped notch of the transmission gear, and the buckles at two sides are hooked and fixed with the two bayonets of the transmission gear; the structure has the advantages that: firstly, a waist-shaped limiting edge is clamped into a waist-shaped notch to realize circumferential limiting of the cutter sleeve and the transmission gear; secondly, the waist-shaped limiting edge can be regarded as a circular ring shape, the straight edges on two sides of the circular ring shape are cut off, the cut-off space just staggers the two buckles on two sides of the clamping ring, so that the clamping ring is hooked and fixed with the bayonet of the transmission gear, and the rest part of the waist-shaped limiting edge is just propped by the clamping ring to realize the vertical fixation of the cutter sleeve and the transmission gear; thirdly, the structure is simple and convenient to assemble, and only the cutter sleeve is sleeved into the transmission gear and clamped by the clamping ring. The transmission gear, the clamping ring and the cutter sleeve jointly form a rotating body of the bean grinding device.
As still further preferable, the bean grinding device further comprises a hanging sleeve, wherein a sword tooth notch is arranged at the lower part of the hanging sleeve, a lower annular groove is arranged on the top annular surface of the hanging sleeve, the hanging sleeve is placed on the connecting rib through the sword tooth notch, a lower flexible sealing ring is placed in the lower annular groove, and the upper end of the lower flexible sealing ring is abutted against the bottom of the clamping ring; the structure solves the sealing problem of the lower part of the rotating body and the shell, avoids the leakage of coffee powder from the lower part to corrode the lower bearing, has compact and reasonable structure, and the lower flexible sealing ring and the hanging sleeve are hooked on the existing connecting ribs, so that the support is stable and the installation is convenient.
As still further preferable, the top of the shell is in threaded connection with an annular cover plate, the top ring surface of the transmission gear is provided with an upper ring groove, an upper flexible sealing ring is placed in the upper ring groove, and the top of the upper flexible sealing ring is abutted against the cover plate; the structure solves the sealing problem of the upper part of the rotating body and the shell, and is convenient and stable to assemble.
Preferably, the bottom plate of the shell is connected with a conical hopper, an exhaust joint is arranged in the conical hopper, and the exhaust joint is provided with an exhaust pipe which is communicated with the air suction fan. The purpose of the above design is: the vertical bean grinding structure capable of directly feeding and discharging has the advantages of simple structure and smooth powder falling, and meanwhile has the defect that high-temperature and high-pressure steam in a brewing device of a coffee machine can be directly discharged upwards, so that coffee beans in a bean grinding device above are affected with damp and deteriorate, related pipelines are blocked, and the brewing taste and normal procedure of the coffee are affected; therefore, an exhaust pipe communicated with the air suction fan is added, high-temperature and high-pressure steam in the brewing cavity is actively pumped out, and the steam is prevented from entering the bean grinding device, so that the coffee beans are ensured to be dry, and the brewing taste is ensured.
Drawings
Fig. 1 is a schematic view showing a semi-sectional structure of a bean grinding device of the coffee maker of the present invention.
Fig. 2 is an exploded view of the bean grinding device of the coffee maker of the present invention.
Fig. 3 is a schematic structural view of a bean grinding device of the coffee maker of the present invention.
Fig. 4 is an exploded view of a rotary body of a bean grinding device of the coffee maker of the present invention.
Fig. 5 is a schematic view of an exploded structure of a housing and a hanging sleeve of a bean grinding device of the coffee maker of the present invention.
Fig. 6 is a schematic structural view of a transmission gear of a bean grinding device of the coffee machine of the present invention.
Fig. 7 is a schematic view of the structure of a housing of a bean grinding device of the coffee maker of the present invention.
The device is characterized by comprising a shell, a cutter sleeve, a cutter head, a cutter 4, a powder outlet, a cutter 5, a transmission gear, a guide ring, a gear ring, a mounting seat, a cutter 7, a connecting rib, a cutter 8, an upper bearing, a cutter 9, a limiting convex ring, a cutter 10, a lower bearing, a cutter 11, a waist-shaped limiting edge, a cutter 12, an inner flanging, a cutter 13, a waist-shaped notch, a cutter 14, a bayonet 15, a buckle, a cutter 16, a clamping ring 17, a hanging sleeve, a cutter 18, a sword notch, a cutter 19, a lower annular groove, a cutter 20, a lower flexible sealing ring, a cover plate 21, a cutter 22, an upper annular groove, a cutter 23, an upper flexible sealing ring 24, a conical hopper, a cutter 25, an exhaust connector 26, a spiral case, a cutter 27 and a worm.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the bean grinding device of the coffee machine comprises a shell 1 with an upper feed inlet, a cutter sleeve 2 and a cutter head 3 are arranged in the shell 1, the central hole of the cutter sleeve 2 is a conical hole with a large upper part and a small lower part, the cutter head 3 is a conical head with a large upper part and a large lower part, and the cutter head 3 is positioned in the central hole of the cutter sleeve 2.
The lower part of the shell 1 is provided with a powder outlet 4 for coffee powder to vertically fall, the cutter head 3 and the shell 1 are relatively static, specifically speaking, the bottom plate of the shell 1 is provided with a central hole, an installation seat 6 is arranged in the central hole, three connecting ribs 7 which are uniformly distributed along the circumferential direction are arranged between the installation seat 6 and the central hole, the cutter head 3 is fixed on the installation seat 6, and gaps among the central hole, the installation seat 6 and the connecting ribs 7 form the powder outlet 4. The upper part of the cross section of each connecting rib 7 is in a pointed cone shape, and two ends of each connecting rib 7 are respectively fixed with the mounting seat 6 and the shell 1.
A transmission gear 5 driven by a motor is rotatably arranged in the shell 1. Specifically, the housing 1 is communicated with a volute 26, a shell of the motor is fixed with the housing 1, an output shaft of the motor is provided with a worm 27, and the worm 27 stretches into the volute 26 and is meshed with the transmission gear 5. The transmission gear 5 comprises a guide ring 5.1 at the upper part and a gear ring 5.2 meshed with a worm 27 at the middle part, the guide ring 5.1 is connected with the side wall of the shell 1 through an upper bearing 8, a limiting convex ring 9 is arranged on the bottom plate of the shell 1, the lower part of the transmission gear 5 is sleeved outside the limiting convex ring 9, and the lower part of the transmission gear 5 is connected with the limiting convex ring 9 through a lower bearing 10.
The knife sleeve 2 and the transmission gear 5 are limited in the circumferential direction. Concretely, the upper part of the cutter sleeve 2 is externally protruded with a waist-shaped limit edge 11, the top of the transmission gear 5 is provided with an inward flange 12, the bottom surface of the inward flange 12 is provided with a waist-shaped notch 13, and the inward flange 12 positioned at two sides of the waist-shaped notch 13 is provided with a bayonet 14; the bean grinding device further comprises a clamping ring 16 with clamping buckles 15 at two sides, the waist-shaped limiting edge 11 of the cutter sleeve 2 is pushed into the waist-shaped notch 13 of the transmission gear 5 by the top ring surface of the clamping ring 16, and the clamping buckles 15 at two sides of the clamping ring 16 are hooked and fixed with the two clamping buckles 14 of the transmission gear 5.
The bean grinding device further comprises a hanging sleeve 17, a sword tooth notch 18 is formed in the lower portion of the hanging sleeve 17, a lower annular groove 19 is formed in the top annular surface of the hanging sleeve 17, the hanging sleeve 17 is placed on the connecting rib 7 through the sword tooth notch 18, a lower flexible sealing ring 20 is placed in the lower annular groove 19, and the upper end of the lower flexible sealing ring 20 abuts against the bottom of the clamping ring 16.
The top of the shell 1 is in threaded connection with an annular cover plate 21, an upper annular groove 22 is formed in the top annular surface of the transmission gear 5, an upper flexible sealing ring 23 is placed in the upper annular groove 22, and the top of the upper flexible sealing ring 23 abuts against the cover plate 21.
The bottom plate of the shell 1 is connected with a conical hopper 24, an exhaust joint 25 is arranged in the conical hopper 24, and the exhaust joint 25 is provided with an exhaust pipe which is communicated with an air suction fan. The suction fan can be an existing suction fan in other structures in the coffee machine, and can be a suction fan specially provided for the exhaust pipe.
The preferred embodiments of the present application are described above, but the present application is not limited to the above-described embodiments, and the specific structure thereof is modified as follows, in which a connecting beam may be provided at the upper portion of the housing 1, and the upper portion of the cutter head 3 is fixed to the connecting beam; the cutter sleeve 2 and the transmission gear 5 can be directly connected in a screwed manner or used as an insert of the transmission gear 5 for direct injection molding or interference fit without depending on the clamping ring 16; etc.
Claims (5)
1. The utility model provides a coffee machine's bean grinding device, this bean grinding device is including taking casing (1) of upper portion feed inlet, is equipped with tool sleeve (2) and tool bit (3) that are located in tool sleeve (2) in casing (1), its characterized in that: the lower part of the shell (1) is provided with a powder outlet (4) for coffee powder to vertically fall, the cutter head (3) and the shell (1) are relatively static, a transmission gear (5) driven by a motor is rotatably arranged in the shell (1), and the cutter sleeve (2) and the transmission gear (5) are circumferentially limited;
the bottom plate of the shell (1) is provided with a central hole, a mounting seat (6) is arranged in the central hole, a connecting rib (7) is arranged between the mounting seat (6) and the central hole, the cutter head (3) is fixed on the mounting seat (6), and gaps among the central hole, the mounting seat (6) and the connecting rib (7) form a powder outlet (4);
the transmission gear (5) comprises a guide ring (5.1) at the upper part and a gear ring (5.2) at the middle part, the guide ring (5.1) is connected with the side wall of the shell (1) through an upper bearing (8), a limiting convex ring (9) is arranged on the bottom plate of the shell (1), the lower part of the transmission gear (5) is sleeved outside the limiting convex ring (9), and the lower part of the transmission gear (5) is connected with the limiting convex ring (9) through a lower bearing (10);
the upper part of the cutter sleeve (2) is externally protruded with a waist-shaped limit edge (11), the top of the transmission gear (5) is provided with an inward flange (12), the bottom surface of the inward flange (12) is provided with a waist-shaped notch (13), and the inward flange (12) positioned at two sides of the waist-shaped notch (13) is provided with a bayonet (14); the bean grinding device further comprises a clamping ring (16) with buckles (15) at two sides, the waist-shaped limiting edge (11) of the cutter sleeve (2) is pushed into the waist-shaped notch (13) of the transmission gear (5) by the top ring surface of the clamping ring (16), and the buckles (15) at two sides are hooked and fixed with the two bayonets (14) of the transmission gear (5).
2. A bean grinding device of a coffee machine according to claim 1, characterized in that: the upper part of the cross section of each connecting rib (7) is in a sharp cone shape.
3. Bean grinding device of a coffee machine according to claim 1 or 2, characterized in that: the bean grinding device comprises a hanging sleeve (17), wherein a sword tooth notch (18) is formed in the lower portion of the hanging sleeve (17), a lower annular groove (19) is formed in the top annular surface of the hanging sleeve (17), the hanging sleeve (17) is placed on a connecting rib (7) through the sword tooth notch (18), a lower flexible sealing ring (20) is placed in the lower annular groove (19), and the upper end of the lower flexible sealing ring (20) abuts against the bottom of a clamping ring (16).
4. A bean grinding device of a coffee machine as claimed in claim 3, characterized in that: an annular cover plate (21) is in threaded connection with the top of the shell (1), an upper annular groove (22) is formed in the top annular surface of the transmission gear (5), an upper flexible sealing ring (23) is placed in the upper annular groove (22), and the top of the upper flexible sealing ring (23) abuts against the cover plate (21).
5. A bean grinding device of a coffee machine according to claim 1, characterized in that: the bottom plate of casing (1) is connected with toper hopper (24), is equipped with exhaust connector (25) in toper hopper (24), and exhaust connector (25) are equipped with the exhaust tube that is used for with the suction fan intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811265708.4A CN109091007B (en) | 2018-10-29 | 2018-10-29 | Bean grinding device of coffee machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811265708.4A CN109091007B (en) | 2018-10-29 | 2018-10-29 | Bean grinding device of coffee machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109091007A CN109091007A (en) | 2018-12-28 |
| CN109091007B true CN109091007B (en) | 2023-07-25 |
Family
ID=64869457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811265708.4A Active CN109091007B (en) | 2018-10-29 | 2018-10-29 | Bean grinding device of coffee machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109091007B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281149A (en) * | 2020-03-13 | 2020-06-16 | 黎媛 | Bean grinding coffee machine |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347313B (en) * | 2007-07-16 | 2010-09-01 | 沈高明 | Mill of coffee-making machine |
| CN201223317Y (en) * | 2008-06-18 | 2009-04-22 | 厦门灿坤实业股份有限公司 | Novel full-automatic bean grinder |
| CN102309256B (en) * | 2011-09-19 | 2013-10-09 | 美的集团股份有限公司 | Coffee bean grinder and coffeemaker with same |
| CN103284606B (en) * | 2012-02-27 | 2016-04-20 | 美的集团股份有限公司 | A kind of mill beans formula coffee machine |
| CN203016752U (en) * | 2012-12-14 | 2013-06-26 | 宁波美侬咖啡机有限公司 | Coffee bean grinding device |
| US10426296B2 (en) * | 2013-12-20 | 2019-10-01 | Van Deuce Pty Ltd | Coffee grinder |
| KR101623884B1 (en) * | 2014-06-12 | 2016-05-24 | 주식회사 유일코리아 | Device for automatic coffee machine bean grinder |
| WO2016042324A2 (en) * | 2014-09-19 | 2016-03-24 | Niche Coffee Limited | Coffee bean grinder |
| CN204192379U (en) * | 2014-11-25 | 2015-03-11 | 宁波路玛电器有限公司 | The mill beans assembly of coffee machine |
| CN104856574A (en) * | 2015-06-12 | 2015-08-26 | 宁波美侬咖啡机有限公司 | Air exhausting device of coffee machine |
| CN107049034B (en) * | 2017-03-23 | 2023-05-16 | 广东百胜图科技有限公司 | Bean grinding and dripping coffee machine |
| CN209058847U (en) * | 2018-10-29 | 2019-07-05 | 宁波卜合电器有限公司 | The bean milling device of coffee machine |
-
2018
- 2018-10-29 CN CN201811265708.4A patent/CN109091007B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109091007A (en) | 2018-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2875758B1 (en) | Juicer | |
| US9854944B2 (en) | Coffee beans grinder | |
| US8801506B2 (en) | Dust collection hood for grinding machine tools | |
| CN109091007B (en) | Bean grinding device of coffee machine | |
| CA2916106A1 (en) | Juice extractor | |
| CN108991931B (en) | Coffee machine | |
| CN111513587B (en) | Grinding device | |
| CN208926102U (en) | Stir cup assembly and food cooking machine | |
| CN111526945B (en) | Grinding type grinder | |
| CN209966136U (en) | Grinding device of coffee machine | |
| CN209770072U (en) | Grinding coffee machine | |
| CN209058847U (en) | The bean milling device of coffee machine | |
| CN209058848U (en) | Coffee machine | |
| CN210304577U (en) | Bran powder screening machine | |
| CN211432191U (en) | Centrifugal juicer with brushless motor | |
| CN208524572U (en) | Coffee machine | |
| CN211093540U (en) | Grinding device | |
| CN109419385A (en) | A kind of food processing machine grinding device | |
| CN219813904U (en) | Grinder powder discharging structure capable of manually removing electrostatic adsorption | |
| CN108013784B (en) | food processor | |
| CN217090350U (en) | Electric coffee machine | |
| CN218013200U (en) | Automatic plastic powder grinding machine | |
| CN220275390U (en) | Powder direct-falling type bean grinding device and coffee machine | |
| CN114916844B (en) | Device for rapidly preparing low-dreg soybean milk | |
| TW201938096A (en) | Grinder with feeding screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |