CN104367192A - Coffee bean grinding device of coffee machine - Google Patents

Coffee bean grinding device of coffee machine Download PDF

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Publication number
CN104367192A
CN104367192A CN201410686197.9A CN201410686197A CN104367192A CN 104367192 A CN104367192 A CN 104367192A CN 201410686197 A CN201410686197 A CN 201410686197A CN 104367192 A CN104367192 A CN 104367192A
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CN
China
Prior art keywords
lid
cover plate
coffee
main shaft
bean
Prior art date
Application number
CN201410686197.9A
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Chinese (zh)
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CN104367192B (en
Inventor
张永法
Original Assignee
宁波路玛电器有限公司
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Priority to CN201410686197.9A priority Critical patent/CN104367192B/en
Publication of CN104367192A publication Critical patent/CN104367192A/en
Application granted granted Critical
Publication of CN104367192B publication Critical patent/CN104367192B/en

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Abstract

The invention discloses a coffee bean grinding device of a coffee machine. The coffee bean grinding device of the coffee machine comprises a hopper (1), a cover plate (2), a protecting sleeve (3), a tool bit (4), a cutter sleeve (5), a powder throwing disk (6) and a main shaft (8) driven by a motor (7), wherein the cover plate (2) is located above a discharge outlet (1.1) which is communicated with the cutter sleeve (5) through the protecting sleeve (3), a connecting shaft (10) is fixed to the top end of the main shaft (8), and external threads (10.1) are arranged on the outer circumferential face of the connecting shaft (10); a guide sleeve (2.2) of the cover plate (2) is matched with the connecting shaft (10) through splines; a plurality of first shifting ribs (2.5) which are evenly distributed in the circumferential direction and used for shifting coffee beans from the center of a cover body (2.1) to the outer circumference of the cover body (2.1) are arranged on the upper surface of a cover body (2.1). Due to the device, discharging is smoother.

Description

The bean milling device of coffee machine

Technical field

The present invention relates to a kind of parts of coffee machine, is specifically a kind of bean milling device of coffee machine.

Background technology

Bean milling device coffee bean agitation grinding being become bean powder is provided with in coffee machine housing.The bean milling device of the coffee machine of prior art comprises up big and down small roughly tapered hopper 101, cover plate 102, protection sleeve 103, ox horn shift fork 104, cutter head 105, broach shell 106, get rid of powder dish 107 and through motor-operated main shaft 108; Hopper 101 and broach shell 106 are all fixed with the housing of coffee machine, and main shaft 108 is also arranged in coffee machine housing through bearing; The discharging opening of hopper 101 is positioned at bottom hopper 101; cover plate 102 is positioned at above discharging opening and cover plate 102 is fixed through the oblique sidewall of many dowels 109 with hopper 101; discharging opening is communicated with broach shell 106 through protection sleeve 103; ox horn shift fork 104 is positioned at the cylinder chamber of protection sleeve 103 and ox horn shift fork 104 is fixing with main shaft 108; cutter head 105 is up-small and down-big Rotary-table; cutter head 105 is positioned at the centre bore of broach shell 106 and cutter head 105 is fixed with main shaft 108, gets rid of powder dish 107 and to be positioned at below cutter head 105 and to fix with main shaft 108.

The course of work of the bean milling device of this coffee machine is: be deposited in by coffee bean in hopper; coffee bean drops to discharging opening; protection sleeve is entered in the gap between cover plate and the oblique sidewall of hopper; now; ox horn shift fork rotates; constantly the coffee bean of discharging opening and protection sleeve junction is stirred; coffee bean is made to continue to drop in the gap between broach shell and cutter head; and then be broken into coffee bean powder by the cutter head grounds travel rotated, finally drop to getting rid of powder dish of rotation from the gap between broach shell and cutter head and throw away to surrounding.

The bean milling device of the coffee machine of prior art there is a critical defect and coffee bean blanking process has some setbacks very much, very easily blocks.Cause the reason of this situation to be that near the discharging opening of hopper, sectional area successively decreases gradually, the gap between cover plate and the oblique sidewall of hopper is narrow, sectional area is little, and coffee bean easily blocks herein; And the existence of reinforcement connecting cover plate has been blocked coffee bean blanking further, exacerbates blocking; Moreover two of ox horn shift fork ox horns all upwarp towards this gap, therefore a larger active force upwards towards direction, discharging opening gap can be produced when ox horn shift fork rotates, exacerbate the blocking of coffee bean further.But nonetheless, again can cover plate be set, otherwise coffee bean blanking is too fast, the amount of the coffee bean in broach shell exceeds cutter head amount of grinding and can cause more serious blocking, ox horn shift fork can not be set equally, otherwise more easily block in coffee bean is directly just deposited between cover plate and the oblique sidewall of hopper gap.

The parts 101 of prior art bean milling device, hopper, 102, cover plate, 103, protection sleeve, 104, ox horn shift fork, 105, cutter head, 106, broach shell, 107, get rid of powder dish, 108, main shaft, 109, dowel;

The parts 1 of bean milling device of the present invention, hopper, 1.1, discharging opening, 2, cover plate; 2.1, lid, 2.2, fairlead, the 2.3, second centre bore; 2.4, annular table terrace, 2.5, first stirs muscle, and 2.6, second stirs muscle; 3, protection sleeve, 4, cutter head, 5, broach shell; 5.1, the first centre bore, 6, get rid of powder dish, 7, motor; 8, main shaft; 9, bearing, 10, connecting axle, 10.1, external screw thread; 10.2, internal thread hole; 11, spline, 12, screw, 13, stage clip; 14, worm set, 15, worm gear.

Summary of the invention

The technical problem to be solved in the present invention is, provides a kind of and can make the bean milling device that coffee bean blanking is more smooth and easy, reduce the coffee machine of coffee bean blocking probability.

Technical solution of the present invention is, provides a kind of bean milling device of coffee machine, and it comprises hopper, cover plate, protection sleeve, cutter head, broach shell, get rid of powder dish and through motor-operated main shaft; Hopper and broach shell are all fixed with the housing of coffee machine, and main shaft is also arranged in coffee machine housing through bearing; The discharging opening of hopper is positioned at feed hopper bottom, and cover plate is positioned at above discharging opening, and discharging opening is communicated with broach shell through protection sleeve, and cutter head is positioned at the first centre bore of broach shell and cutter head and main shaft are fixed, and gets rid of powder dish and to be positioned at below cutter head and to fix with main shaft,

Main shaft top is fixed with a connecting axle, and the outer circumference surface of connecting axle is provided with external screw thread, and connecting axle top is provided with internal thread hole, and the anchor ring on connecting axle top is provided with spline;

Cover plate is made up of the fairlead of lid and lid lower end, lid and fairlead coaxial, cover plate is provided with the second centre bore penetrating into fairlead from lid, the anchor ring of fairlead bottom is also provided with spline, annular table terrace is provided with in second centre bore, a screw is equipped with in second centre bore, the screw rod of screw screws in the internal thread hole of connecting axle, screw rod is sheathed with stage clip, stage clip upper end and screw head push against, and stage clip lower end and annular table terrace push against to make the spline of fairlead bottom anchor ring and the spline fitted of connecting axle nose-circle anchor ring;

The upper surface of lid is provided with many of being uniformly distributed circumferentially for what stirred to the excircle of lid from lid center by coffee bean and first stirs muscle.

The course of work of the bean milling device of this coffee machine is: be deposited in by coffee bean in hopper, coffee bean drops near discharging opening, drive motor is through main shaft band dynamic cutter head, connecting axle external screw thread and cover plate rotate, the coffee bean majority be positioned near discharging opening is piled up on the cover board, minority drops in the gap between cover plate and the oblique sidewall of hopper, for ease of describing, this gap is defined as discharging opening gap, on cover plate first is stirred muscle rotation and the coffee bean piled up on the cover board can be passed to discharging opening gap, then fall in protective sleeve through gap, stirred by the external screw thread of the connecting axle rotated in protective sleeve again, fall in the first centre bore of broach shell, bean powder is broken into by cutter head grounds travel, drop to from the gap between cutter head and broach shell and get rid of powder dish, finally thrown away by the powder dish that gets rid of rotated.

There is a few spotlight in the design of this bean milling device: one is the ox horn shift fork substituting prior art with the external screw thread of connecting axle, and what cause this place to produce to the active force in direction, discharging opening gap when this avoid the rotation of ox horn shift fork blocks up, two is be connected with main shaft by cover plate, instead of is fixed on hopper with dowel as prior art, like this, eliminates whole dowels, expands the aisle spare in discharging opening gap, alleviate the blocking of this position further, three is designs that lid upper surface first stirs muscle, the direction that every bar first stirs muscle tilting is contrary with the direction that cover plate rotates, like this, when cover plate rotates, first stirs muscle and can pass piling up bean or pea on the cover board to discharging opening gap, the blanking of further quickening bean or pea, and, this feature and Article 1 feature be combined with each other synergistic, although rotate to cause the resistance of discharging opening block up because solve ox horn shift fork by the scheme that the external screw thread of connecting axle substitutes ox horn shift fork, but the efficiency of external screw thread stirring bean or pea may be desirable not as ox horn shift fork after all, blanking velocity is slowed down, but first stirs the passing of muscle to bean or pea, have modified this nibs, the Whole blanking speed of bean milling device is obviously accelerated, the maximum design bright spot of of this device is, the spline fitted of fairlead and connecting axle, and two pressured spring pressings of spline, like this, start most, the speed that cover plate rotates is identical with the rotating speed of cutter head, cutter head rotating speed is fast, cover plate rotating speed is also fast, on the cover plate of quick rotation first is stirred influential point of tendons and bean or pea is passed discharging opening gap in a large number, if cover plate rotating speed is always constant, bean or pea can be made too much to block up in discharging opening gap, but the bean or pea of piling up in discharging opening gap are increased gradually, first stirs muscle passes the resistance of bean or pea and naturally increases gradually to discharging opening gap, resistance increases to and the spline between the fairlead of cover plate and connecting axle to a certain degree can be made to skid, and then cause fairlead and connecting axle to be thrown off, make cover plate and first stir muscle no longer to rotate, by the time the bean or pea in discharging opening gap do not stop minimizing, first resistance stirring myospasm dynamic is also reduced naturally, two splines compress by stage clip again, first stirs myospasm speed accelerates again gradually, that is, the design that spline adds stage clip achieves automatic adjustment and the compensation that first stirs myospasm speed, bean or pea are many in discharging opening gap, then rotating speed does not even turn slowly, rotating speed is fast at least for discharging opening gap bean or pea, can prevent from blocking up, blanking can be accelerated again.

In sum, the bean milling device adopting the coffee machine of above structure compared with prior art, has the following advantages: namely make coffee bean blanking fast smooth and easy, stops the situation of coffee bean blocking.

As improvement; the lower surface of lid is provided be uniformly distributed circumferentially many for coffee bean is stirred muscle from lid excircle to second of the centre toggle of lid; the direction that every bar second stirs muscle tilting is identical with the direction that lid rotates; like this; rotate along with lid second stirs muscle can pass the bean or pea at discharging opening gap place to centre; be convenient to bean or pea fall to protective sleeve, prevent blocking further, accelerate blanking.

Accompanying drawing explanation

Fig. 1 is the sectional structure schematic diagram of the bean milling device of the coffee machine of prior art.

Fig. 2 is the sectional structure schematic diagram of the bean milling device of coffee machine of the present invention.

Fig. 3 is the detonation configuration schematic diagram of the bean milling device of coffee machine of the present invention.

Fig. 4 is the structure for amplifying schematic diagram of the cover plate of the bean milling device of coffee machine of the present invention.

Fig. 5 be the cover plate of the bean milling device of coffee machine of the present invention look up structural representation.

Fig. 6 is the plan structure schematic diagram of the cover plate of the bean milling device of coffee machine of the present invention.

Shown in figure

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the invention will be further described.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, the bean milling device of coffee machine of the present invention, it comprises hopper 1, cover plate 2, protection sleeve 3, up-small and down-big Rotary-table cutter head 4, columnar broach shell 5, the main shaft 8 that gets rid of powder dish 6 and drive through motor 7.The output shaft of motor 7 is provided with worm set 14, and main shaft 8 is provided with transmission worm gear 15, and worm set 14 engages with worm gear 15.Hopper 1 and broach shell 5 are all fixed with the housing of coffee machine, and main shaft 8 is also arranged in coffee machine housing through bearing 9, and protection sleeve 3 also can be fixed with broach shell 5 with coffee machine housing is fixing.

Hopper 1 is up big and down small roughly tapered.The discharging opening 1.1 of hopper 1 is positioned at bottom hopper 1; cover plate 2 is positioned at above discharging opening 1.1; discharging opening 1.1 is communicated with the first centre bore 5.1 of broach shell 5 through the cylinder chamber of protection sleeve 3; cutter head 4 is positioned at the first centre bore 5.1 of broach shell 5 and cutter head 4 is fixed with main shaft 8, gets rid of powder dish 6 and to be positioned at below cutter head 4 and to fix with main shaft 8.

Cutter head 4 is protruded on main shaft 8 top and main shaft 8 top is fixing has screwed a connecting axle 10 as being spirally connected, the outer circumference surface of connecting axle 10 is provided with external screw thread 10.1, and connecting axle 10 top is provided with internal thread hole 10.2, and the anchor ring on connecting axle 10 top is provided with spline 11.

Cover plate 2 is made up of the fairlead 2.2 of lid 2.1 and lid 2.1 lower end.The dead in line of lid 2.1 and fairlead 2.2 and both are one-body molded.Cover plate 2 is provided with the second centre bore 2.3 penetrating into fairlead 2.2 from lid 2.1, and namely the second centre bore 2.3 gangs up the bottom of fairlead 2.2 always from the upper surface of lid 2.1.The anchor ring of fairlead 2.2 bottom is also provided with spline 11, is provided with in annular table terrace 2.4, second centre bore 2.3 and is equipped with a screw 12 in the second centre bore 2.3, and the screw rod of screw 12 screws in the internal thread hole 10.2 of connecting axle 10.Screw rod is sheathed with stage clip 13, stage clip 13 upper end and screw 12 head push against, and stage clip 13 lower end and annular table terrace 2.4 push against the spline 11 of fairlead 2.2 bottom anchor ring is coordinated with the spline 11 of connecting axle 10 nose-circle anchor ring.

As shown in Figure 6, the upper surface of lid 2.1 is provided with many of being uniformly distributed circumferentially for what stirred to the excircle of lid 2.1 from lid 2.1 center by coffee bean and first stirs muscle 2.5, and it is contrary with the direction that lid 2.1 rotates that every bar first stirs the direction that muscle 2.5 tilts.As shown in Figure 5, the lower surface of lid 2.1 is provided be uniformly distributed circumferentially many for coffee bean is stirred muscle 2.6 from lid 2.1 excircle to second of the centre toggle of lid 2.1, and it is identical with the direction that lid 2.1 rotates that every bar second stirs the direction that muscle 2.6 tilts.

Claims (2)

1. a bean milling device for coffee machine, it comprises hopper (1), cover plate (2), protection sleeve (3), cutter head (4), broach shell (5), the main shaft (8) that gets rid of powder dish (6) and drive through motor (7); Hopper (1) and broach shell (5) are all fixed with the housing of coffee machine, and main shaft (8) is also arranged in coffee machine housing through bearing (9); The discharging opening (1.1) of hopper (1) is positioned at hopper (1) bottom; cover plate (2) is positioned at discharging opening (1.1) top; discharging opening (1.1) is communicated with broach shell (5) through protection sleeve (3); cutter head (4) is positioned at first centre bore (5.1) of broach shell (5) and cutter head (4) is fixing with main shaft (8); get rid of powder dish (6) be positioned at cutter head (4) below and fix with main shaft (8), it is characterized in that:
Main shaft (8) top is fixed with a connecting axle (10), the outer circumference surface of connecting axle (10) is provided with external screw thread (10.1), connecting axle (10) top is provided with internal thread hole (10.2), and the anchor ring on connecting axle (10) top is provided with spline (11);
Cover plate (2) is made up of the fairlead (2.2) of lid (2.1) and lid (2.1) lower end, lid (2.1) and fairlead (2.2) are coaxially, cover plate (2) is provided with the second centre bore (2.3) penetrating into fairlead (2.2) from lid (2.1), the anchor ring of fairlead (2.2) bottom is also provided with spline (11), annular table terrace (2.4) is provided with in second centre bore (2.3), a screw (12) is equipped with in second centre bore (2.3), the screw rod of screw (12) screws in the internal thread hole (10.2) of connecting axle (10), screw rod is sheathed with stage clip (13), stage clip (13) upper end and screw (12) head push against, stage clip (13) lower end and annular table terrace (2.4) push against the spline (11) of fairlead (2.2) bottom anchor ring is coordinated with the spline (11) of connecting axle (10) nose-circle anchor ring,
The upper surface of lid (2.1) is provided with many of being uniformly distributed circumferentially for what stirred to the excircle of lid (2.1) from lid (2.1) center by coffee bean and first stirs muscle (2.5).
2. the bean milling device of coffee machine according to claim 1, is characterized in that: the lower surface of lid (2.1) is provided be uniformly distributed circumferentially many for coffee bean is stirred muscle (2.6) from lid (2.1) excircle to second of the centre toggle of lid (2.1).
CN201410686197.9A 2014-11-25 2014-11-25 Coffee bean grinding device of coffee machine CN104367192B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410686197.9A CN104367192B (en) 2014-11-25 2014-11-25 Coffee bean grinding device of coffee machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410686197.9A CN104367192B (en) 2014-11-25 2014-11-25 Coffee bean grinding device of coffee machine

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CN104367192A true CN104367192A (en) 2015-02-25
CN104367192B CN104367192B (en) 2017-01-25

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200833282A (en) * 2007-02-05 2008-08-16 Chung-Jen Pai A grinder
CN101862118A (en) * 2009-10-22 2010-10-20 美的集团有限公司 Food grinder
US20130319821A1 (en) * 2012-06-01 2013-12-05 Joseph Y. Ko Destroying apparatus for electronic elements
CN203408740U (en) * 2013-07-16 2014-01-29 东莞日之泉蒸馏水有限公司 Split type stainless steel colloid grinder
WO2014165905A1 (en) * 2013-04-08 2014-10-16 Breville Pty Limited Improvements to coffee grinder
CN204192378U (en) * 2014-11-25 2015-03-11 宁波路玛电器有限公司 The bean milling device of coffee machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200833282A (en) * 2007-02-05 2008-08-16 Chung-Jen Pai A grinder
CN101862118A (en) * 2009-10-22 2010-10-20 美的集团有限公司 Food grinder
US20130319821A1 (en) * 2012-06-01 2013-12-05 Joseph Y. Ko Destroying apparatus for electronic elements
WO2014165905A1 (en) * 2013-04-08 2014-10-16 Breville Pty Limited Improvements to coffee grinder
CN203408740U (en) * 2013-07-16 2014-01-29 东莞日之泉蒸馏水有限公司 Split type stainless steel colloid grinder
CN204192378U (en) * 2014-11-25 2015-03-11 宁波路玛电器有限公司 The bean milling device of coffee machine

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