CN201108357Y

CN201108357Y - Coffee-making machine mills

Info

Publication number: CN201108357Y
Application number: CNU2007201119263U
Authority: CN
Inventors: 沈高明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-16
Filing date: 2007-07-16
Publication date: 2008-09-03
Anticipated expiration: 2017-07-16

Abstract

A grinder of a coffee maker comprises a grinding head, a tool bit, a tool case and a transmission mechanism, wherein, the grinding head is installed fixedly on the upper end of a vertical rotating axis in the grinder; the tool bit is arranged in the lower part; the tool bit is clearance fit with the tool case arranged in the grinder; a coffee rotary table is fixed in the vertical rotating axis, the lower end of which is drivable connected with the transmission mechanism. The grinder is characterized in that the tool bit and the tool case are made of porcelain; moreover, the tool bit is inserted and connected with the coffee rotary table through a location pin, and an elastic element is provided to support between the tool bit and the relative surface of the coffee rotary table. The tool bit and the tool case are made of porcelain, and the elastic mechanism is provided, therefore, the tool bit component has the advantages of wear resistance, high temperature resistance, corrosion resistance, little heat deformation, high hardness and great strength, thus the grinder produces swiftly even lapping powder, noise is lowered and the structure is reasonable and practicable.

Description

A kind of coffee machine grinder

Technical field

The utility model relates to a kind of coffee machine grinder.

Background technology

Along with improving constantly of living standards of the people, coffee machine is progressively come into the family of numerous people, will use mill in coffee machine, is convenient to the coffee bean grind into powder is made coffee again.

As the patent No. is that the European patent of EP0684003B1 discloses a kind of coffee grinder, it is particularly useful for coffee machine, it comprises a conical apparatus that grinds, this taper shape grinds apparatus and can rotate around the vertical axis in grinding the axle collar, and connect by gear drive, this taper shape grinds apparatus and axially is connected with a clutch discs, this clutch discs connects a rotatable transmission device, in addition, a kind of claw coupling is provided between clutch discs and transmission device, between clutch discs and grinding apparatus, provide an overload-release clutch, limit rotatable moment of torsion, overload-release clutch includes one and contains ball, under elastic pressure, can move along clutch discs axis hole direction, cooperate with grinding apparatus bottom surface opening portion, clutch discs and gear drive partly include synthetic material and make, be characterised in that in clutch discs to have embedded metal dish, have the opening of ball hole in the above, and make to have resilient damping element between the hook of claw type connector towards the one side of grinding apparatus.The mill of this coffee machine uses in practice and shows and also have following problem:

Defectives such as 1, mill does not adopt metal cutter head broach shell, and difficulty of processing is big, and is wear-resisting, easily get rusty, and mill abrasive dust thickness is inhomogeneous, powder delivery is slow, noise is big.

2, feel trim actuator complex structure, assembling difficulty; Topmost skidding when still transshipping very easily worn and torn following support chip, has some resistances just to produce skidding a little, normal use brought have a strong impact on.

3, elasticity hitch bar assembling difficulty, no positive effect.

4, original steel ball is a solid matter on the mill, be easy to generate to dredge tight irregular phenomenon, and the location is stable bad, assembles time-consuming.

5, cutter head, broach shell are directly to be screwed on the steel ball seat that plastics do with tapping screw on the original mill, are easy to generate screw like this and skid, and cause the fixing difficulty of cutter head, and grinding effect is bad.

Comprehensively above-mentioned, also need to be further improved design.

Summary of the invention

Technical problem to be solved in the utility model is that a kind of wear-resisting, high temperature resistant, corrosion-resistant, thermal deformation is little, hardness is high, intensity is big coffee machine grinder is provided at background technology, thus make mill abrasive dust even thickness, powder delivery fast, reduce noise.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of coffee machine grinder, it includes grinding head, cutter head, broach shell, transmission mechanism, grinding head is fixed on vertical rotation axle upper end in the mill, being provided with below is cutter head, cutter head is a matched in clearance with the broach shell that is arranged in the mill, also be fixed with the coffee rotating disk in the vertical rotation axle, vertical rotation axle lower end is to drive to be connected with transmission mechanism, it is characterized in that described cutter head, broach shell adopts ceramic material to make, and, cutter head is plugged and connected by alignment pin and coffee rotating disk, is supported with flexible member between cutter head and the coffee rotating disk opposite face.

Further improve, described transmission mechanism shell upper is fixed with the steel ball holder, and the steel ball holder is distributed with the lopping steel ball by annular retainer, and the coffee rotating disk rollably is arranged on above the steel ball by the last circle of annular.Use the steel ball solid matter instead the retainer structure like this, make steel ball and steel ball locations spaced clocklike, avoided phenomenon of uneven density, make its accurate positioning, easy for installation, frictional resistance minimizing.

Improve again, described vertical rotation axle adopts a long spiro nail, after passing grinding head, cutter head, coffee rotating disk, steel ball holder successively, the attaching nut, carry out axial limiting with nut and fix, and the clutch end socket connection of nut and driving mechanism together, use left-handed screw like this instead, also solve cutter head, broach shell skidding with the nut anti-looseness function, can overcome tapping screw is screwed in and is easy to generate screw thread damage on the plastics and causes the defective of skidding

Further improve; its power section motor of described driving mechanism is connected with electronic overcurrent protection device, when the motor output abnormality operating current become big as during when stall electric current be maximum, overcurrent protective device moves in the several seconds; not only current limliting but also step-down are protected motor.

Improve again, upper and lower settings is connected with the planetary gear reducing mechanism of two-stage series connection in the described driving mechanism shell, and the input of reducing gear is connected with motor, and the nut of output and long spiro nail carries out socket connection, make the transmission mechanism compact conformation, be convenient to install and peg graft.

At last, described broach shell is on cutter in the cutting ferrule, cutting ferrule also under cutter, in the embedding crane, accent amount fluted disc and crane link together, and crane is threaded in coffee meal outlet assembly outside, links together by collar and driving mechanism shell together again, can lead to the thickness that the overtravel fluted disc is adjusted abrasive flour like this, mismachining tolerance and alignment error in the elimination production process between inevitable cutter head and the broach shell.

Compared with prior art, advantage of the present utility model is: the cutter head and the broach shell that adopt ceramic material to make, and in conjunction with elastic mechanism, make cutter head assembly wear-resisting, high temperature resistant, corrosion-resistant, and thermal deformation is little, hardness is high, intensity is big, thereby makes mill abrasive dust even thickness, and powder delivery is fast, reduce noise, practicality rational in infrastructure.

Description of drawings

Fig. 1 is a coffee machine grinder cutaway view of the present utility model;

Fig. 2 a is a coffee machine grinder part three-dimensional exploded view of the present utility model;

Fig. 2 b is a coffee machine grinder part three-dimensional exploded view of the present utility model.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As schematically shown in Figure 1, wherein Fig. 2 a, 2b have formed complete coffee machine grinder three-dimensional exploded view.A kind of coffee machine grinder, it includes grinding head 3, cutter head 6, broach shell 7, critical pieces such as transmission mechanism, wherein vertical drive shaft has adopted a long spiro nail 1 in the mill, long spiro nail 1 upper end places and is fixed with a grinding head 3, position, long spiro nail 1 middle and lower part places and is fixed with coffee rotating disk 15, between grinding head 3 and coffee rotating disk 15, be provided with cutter head 6, simultaneously, cutter head 6 is enclosed within on the vertical rotation axle of long spiro nail 1, be supported with flexible member 13 between the opposite face of cutter head 3 and coffee rotating disk 15 as spring or block rubber, and between the lining wool felt 12, cutter head 6 also is plugged and connected by alignment pin 14 and coffee rotating disk 15, alignment pin 14 numbers are three, be evenly distributed on the opposite face between them, after steel ball holder 18 is passed in the lower end of long spiro nail 1, carrying out axial limiting with nut 19 fixes, thereby with grinding head 3, cutter head 6, coffee rotating disk 15 is arranged in the steel ball holder 18 rotationally, be convenient to be connected and installed, cutter head 6 is matched in clearance with the broach shell 7 that is arranged in the mill, in order to reach wear-resisting, high temperature resistant, corrosion resistant effect, cutter head 6 and broach shell 7 are to adopt thermal deformation little, the hardness height, the ceramic material that intensity is big.Steel ball holder 18 is fixed on transmission mechanism shell 21 tops, annular retainer 16 is arranged on the steel ball holder 18, annular retainer 16 circumference are distributed with lopping steel ball 17 equably, and coffee rotating disk 15 just rollably is arranged on above the steel ball 17 by the circle 22 of going up of annular, has formed bearing element mechanism.Upper and lower settings is connected with the planetary gear reducing mechanism 24 of two-stage series connection in the driving mechanism shell 21; the input of reducing gear 24 is connected with motor; planetary gear reducing mechanism 24 outputs both center output precision have nut bore 23; carry out socket connection with the nut 19 of long spiro nail; in order to play better connection and fastening effect; nut 19 is to adopt double nut; the power section motor of driving mechanism is connected with electronic overcurrent protection device; electric current is maximum as when stall the time when the motor output abnormality; overcurrent protective device action in the several seconds; not only current limliting but also step-down are protected motor.For the ease of regulating, broach shell 7 is packed on the cutter in the cutting ferrule 4, cover under cutter on the cutting ferrule 5, and embed together in the crane 9, accent amount fluted disc 8 links together with crane 9, crane 9 is threaded in coffee meal outlet assembly 10 outsides, be connected on the driving mechanism shell 21 by collar together again, like this as long as suitably rotate accent amount fluted disc 8, driving crane 9 on coffee powder delivery spout assembly 10 moves up and down, and broach shell 7 is installed on the crane 9 by cutting ferrule up and down, can play the effect of adjusting gap between cutter head 6 and the broach shell 7 like this.Be connected and installed rubber sleeve 2 on cutting ferrule 4 outer circumference surfaces on the cutter, be convenient to charging.

Its operation principle is such, motor output in this coffee machine grinder is through after planetary gear reducing mechanism 24 speed changes of two-stage series connection, rotating disk alignment pin 14 on the coffee powder rotating disk drives cutter head 6 rotations, coffee bean is packed into behind the rubber sleeve 2, through milling of cutter head 6 and broach shell 7, enter in the coffee outlet storehouse, by the blade on the coffee rotating disk 15 coffee powder is thrown away outside the coffee powder spout assembly 10 again.

Claims

1. coffee machine grinder, it includes grinding head, cutter head, broach shell, transmission mechanism, grinding head is fixed on vertical rotation axle upper end in the mill, being provided with below is cutter head, cutter head is a matched in clearance with the broach shell that is arranged in the mill, also be fixed with the coffee rotating disk in the vertical rotation axle, vertical rotation axle lower end is to drive to be connected with transmission mechanism, it is characterized in that described cutter head, broach shell adopt ceramic material to make, and, cutter head is plugged and connected by alignment pin and coffee rotating disk, is supported with flexible member between cutter head and the coffee rotating disk opposite face.

2. coffee machine grinder according to claim 1, it is characterized in that described transmission mechanism shell upper is fixed with the steel ball holder, the steel ball holder is distributed with the lopping steel ball by annular retainer, and the coffee rotating disk rollably is arranged on above the steel ball by the last circle of annular.

3. coffee machine grinder according to claim 1 and 2, it is characterized in that described vertical rotation axle adopts a long spiro nail, after passing grinding head, cutter head, coffee rotating disk, steel ball holder successively, be connected with nut, and the clutch end socket connection of nut and driving mechanism together.

4. coffee machine grinder according to claim 3 is characterized in that its power section motor of described driving mechanism is connected with electronic overcurrent protection device.

5. coffee machine grinder according to claim 4, it is characterized in that upper and lower settings in the described driving mechanism shell is connected with the planetary gear reducing mechanism of two-stage series connection, the input of reducing gear is connected with motor, and the nut of output and long spiro nail carries out socket connection.

6. coffee machine grinder according to claim 5, it is characterized in that described broach shell is on cutter in the cutting ferrule, cutting ferrule also under cutter, in the embedding crane, accent amount fluted disc and crane link together, crane is threaded in coffee meal outlet assembly outside, links together by collar and tooth driving mechanism shell together again.