EP3346844A1 - Mixing machine - Google Patents
Mixing machineInfo
- Publication number
- EP3346844A1 EP3346844A1 EP16795137.5A EP16795137A EP3346844A1 EP 3346844 A1 EP3346844 A1 EP 3346844A1 EP 16795137 A EP16795137 A EP 16795137A EP 3346844 A1 EP3346844 A1 EP 3346844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotation
- roller
- mixing machine
- rotary motion
- bowl
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
- A21C1/00—Mixing or kneading machines for the preparation of dough
- A21C1/02—Mixing or kneading machines for the preparation of dough with vertically-mounted tools; Machines for whipping or beating
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
- A21C1/00—Mixing or kneading machines for the preparation of dough
- A21C1/14—Structural elements of mixing or kneading machines; Parts; Accessories
- A21C1/1465—Drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1142—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections of the corkscrew type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
- B01F29/85—Mixers with rotating receptacles rotating about a substantially vertical axis with helices, e.g. rotating about an inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/33—Transmissions; Means for modifying the speed or direction of rotation
- B01F35/333—Transmissions; Means for modifying the speed or direction of rotation the rotation sense being changeable, e.g. to mix or aerate, to move a fluid forward or backward or to suck or blow
Definitions
- the present invention regards a machine for mixing food products, particularly suitable for mixing a mixture containing flour of the type used for making bread, pasta, pastries and similar products.
- a mixing machine more precisely known as a spiral mixer, comprises a bowl for containing the ingredients to be mixed, which is driven in rotation around the axis thereof.
- a fixed tool Inside the bowl there are arranged a fixed tool and a mixing tool, preferably spiral screw-shaped, which is driven to rotate around a respective rotational axis.
- the rotation of the bowl around the axis thereof enables delivering different portions of the dough to the tools.
- the combined action of the tools and the containment bowl described above enables mixing the ingredients of the mixture and simulating the actions of pressing, drawing and turning the dough typical of hand kneading.
- a first type comprises a single motion generation source, in particular a single electric motor, to which there are associated first transmission members for driving the kneading tool in rotation and second transmission members for driving the bowl in rotation.
- a single motion generation source in particular a single electric motor
- Such first type of mixing machine providing for a single rotary motion generation source, is advantageously light and inexpensive.
- the presence of such single source disadvantageously entails the possibility of rotating the containment bowl and the kneading tool exclusively according to the same direction of rotation.
- a second alternative solution with the aim of overcoming the aforementioned drawback, consists in a mixing machine available in the market that provides for a first rotary motion generation source operatively associated to the kneading tool by means of first transmission members and a second rotary motion generation source, independent from the first, operatively associated to the bowl by means of second transmission members.
- the present invention aims at overcoming all the aforementioned drawbacks, regarding the mixing machines of the known type.
- an object of the present invention is to provide a machine for mixing food products capable of driving the bowl and the kneading tool in rotation according to two opposite directions of rotation, while simultaneously maintaining the costs and weight of the mixing machine low with respect to the mixing machines of the prior art.
- Another object of the present invention is to provide a mixing machine capable of enabling to obtain a dough with quality similar to the one that can be obtained using a mixing machine with two motion generation sources of the prior art.
- Another object of the present invention is to provide a mixing machine that is easy to manufacture with respect to the aforementioned machine with two rotary motion generation sources of the prior art.
- an object of the invention is to provide a machine capable of enabling the rotation of the bowl and the tool in the same direction of rotation or, alternatively, in opposite directions, without requiring two rotary motion generation sources and without requiring the intervention of an operator on the structure of the machine.
- the lower construction complexity of the machine of the invention enables reducing the cost thereof with respect to the mixing machines of the known type.
- the lower construction complexity of the machine makes it more reliable, thus reducing the need for maintenance operations.
- the reduction of costs due to the presence of a single motion generation source possibly enables obtaining the mixing machine using higher quality materials or equipping the mixing machine with higher performance accessories, while simultaneously maintaining the cost thereof in line with the mixing machines with two rotary motion generation sources of the prior art.
- the presence of a single rotary motion generation source which still enables the rotation of the bowl according to the two directions of rotation, enables obtaining the entire structure of the mixing machine made of stainless steel, at a markedly lower cost with respect to the mixing machines available in the market with a stainless steel structure but with two rotary motion generation sources.
- - fig. 1 represents an axonometric view of the mixing machine of the invention
- - fig. 2 represents the mixing machine of fig. 1 in a partly sectional view
- - fig. 3 represents a schematised axonometric view of the rotary motion generation source and the transmission members present in the mixing machine of the invention
- - fig. 4 represents the top view of the motion diverter unit of the mixing machine of the invention
- - fig. 5 represents the sectional view of the motion diverter unit of fig. 4 according to the section plane A-A;
- - fig. 6 represents the sectional view of the motion diverter unit of fig. 4 according to the section plane B-B;
- - fig. 7 represents the schematised top view of the motion diverter unit at the first operating position
- - fig. 8 represents the schematised top view of the motion diverter unit at the second operating position.
- the spiral mixer of the invention represented in fig. 1 and herein indicated in its entirety with 1 , is particularly suitable for kneading a mixture comprising flour, of the type used for making bread, pasta, pastries and other similar products.
- the spiral mixer 1 of the invention comprises a bowl 2 for containing the ingredients to be kneaded, in which there is arranged a kneading tool 3, still observable in fig. 1 and in the section of fig. 2.
- Variant embodiments of the machine 1 of the invention may provide for a number of kneading tools 3 greater than one.
- such kneading tool 3 is spiral screw-shaped, thus the name spiral mixer.
- the machine 1 also comprises a rotary motion generation source 4 operatively associated to first and second transmission members, respectively indicated with 5 and 6 in fig. 3.
- first and second transmission members 5 and 6 are, in turn, respectively configured to drive such kneading tool 3 and the aforementioned containment bowl 2 in rotation around corresponding rotational axes X1 and X2.
- rotational axes X1 and X2 are mutually parallel.
- the aforementioned rotary motion generation source 4 is an electric motor 41.
- the mixing machine 1 of the invention also comprises a framework, indicated with 8 in fig. 1 , on which or in which the aforementioned elements are assembled.
- machine 1 of the invention clearly comprises pre-programmed electronic control means (not represented in the figures) capable of managing the functionality of the machine 1.
- the second transmission members 6 comprise a motion diverter unit 7, configured to transmit the rotary motion generated by the aforementioned electric motor 41 to the containment bowl 2 alternatively according to any of the two directions of rotation.
- a motion diverter unit 7 enables the user of the mixing machine 1 of the invention to reverse or not reverse the direction of rotation of the aforementioned containment bowl 2 with respect to the rotary motion generated by the electric motor 41 and directly transmitted to the kneading tool 3.
- Such operation is obtained albeit the use of a single electric motor 41 , or more generally, a single rotary motion generation source 4 for driving the kneading tool 3 and the containment bowl 2.
- such motion diverter unit 7 comprises a first flexible transmission element 71 loop-wound around three idle pulleys 72a, 72b and 72c.
- the number of idle pulleys, around which such first flexible transmission element 71 is wound be different from three, as long as greater or equal to tWO.
- the preferred embodiment of the invention provides for that the three idle pulleys 72a, 72b and 72c be rotatably connected to a first support structure 74. More in detail, preferably but not necessarily, as observable in fig. 6, such first support structure 74 comprises two shaped plates 74a and 74b arranged parallel and between which the aforementioned three idle pulleys 72a, 72b and 72c are rotatably connected.
- the first flexible transmission element 71 preferably comprises a transmission belt 711.
- Such transmission belt 711 is operatively associated to the containment bowl 2, so as to transfer the rotary motion thereof to the latter as observable in fig. 3.
- the preferred embodiment of the mixing machine 1 of the invention as represented in fig. 1 , comprises a containment bowl 2 of the removable type, such operative association between the transmission belt 711 and the containment bowl 2 is obtained by making the latter idle with respect to the rotational axis thereof X2 and placing the lateral surface thereof at contact with the outer surface 71a of the transmission belt 711.
- the transmission belt 711 is driven in rotation, as described below, it will also drive the containment bowl 2 in rotation due to friction.
- a different embodiment of the mixing machine 1 of the invention may comprise a containment bowl 2 of the non-removable type.
- the containment bowl 2 is made idle with respect to the rotational axis thereof X2 and it is driven in rotation by friction with the transmission belt 711 .
- the motion diverter unit 7 also comprises a motion reversal unit 73 configured to be driven in rotation by the rotary motion generation source 4 and to take, with respect to the aforementioned first flexible transmission element 71 , a first position so as to drive the flexible transmission element 71 and thus the containment bowl 2 in rotation in a first of the two directions of rotation and a second position so as to drive the aforementioned first flexible transmission element 71 and the containment bowl 2 in rotation in the second of the two directions of rotation.
- a motion reversal unit 73 configured to be driven in rotation by the rotary motion generation source 4 and to take, with respect to the aforementioned first flexible transmission element 71 , a first position so as to drive the flexible transmission element 71 and thus the containment bowl 2 in rotation in a first of the two directions of rotation and a second position so as to drive the aforementioned first flexible transmission element 71 and the containment bowl 2 in rotation in the second of the two directions of rotation.
- the motion reversal unit 73 in turn provides for, as observable in fig. 5, a first driven pulley 731 configured to be driven in rotation, as described hereinafter, by the rotary motion generation source 4.
- the motion reversal unit 73 also comprises, according to the preferred embodiment of the invention, a first roller 732 and a second roller 733 configured to rotate around their axes X3 and X4 integrally joined to the aforementioned first driven pulley 731.
- such integral rotation of the first driven pulley 731 , of the first roller 732 and of the second roller 733 is preferably obtained, by fitting the first driven pulley 731 on a first end 732a of the first roller 732, by fitting a first driving pulley 734 at the second end 732b of the first roller 732 and lastly by fitting a second driven pulley 735 on the second roller 733, as observable in fig. 5.
- Such first driving pulley 734 of the first roller 732 and such second driven pulley 735 of the second roller 733 are operatively associated to each other.
- the latter association is preferably obtained by means of a transmission belt 736 loop-wound around the two aforementioned pulleys 734 and 735.
- the elements of the motion reversal unit 73 are assembled and are rotatably connected to a second support structure 75.
- the second support structure 75 it comprises two shaped plates 75a and 75b arranged parallel and between which the first roller 732 and the second roller 733 are rotatably connected.
- the motion reversal unit 73 is configured, as previously mentioned, according to the invention to take, with respect to the aforementioned first flexible transmission element 71 , such first position which provides for the contact between the outer surface 71a of the first flexible transmission element 71 and the second roller 733, so that the latter drives the flexible transmission element 71 and thus the containment bowl 2 in rotation by friction in a first of the two directions of rotation.
- the motion reversal unit 73 is configured to take, with respect to the aforementioned first flexible transmission element 71 , also the aforementioned second position which provides for the contact between the inner surface 71 b of the first flexible transmission element 71 and the first roller 732 so that the latter drives the flexible transmission element 71 and thus the containment bowl 2 in rotation by friction in the second of the two directions of rotation.
- the bowl 2 at the first aforementioned position, will be driven in rotation in the same direction of the rotary motion generated by the aforementioned electric motor 41.
- the containment bowl 2 at the aforementioned second position, will be driven in rotation in the opposite direction with respect to the direction of the rotary motion generated by the electric motor 41.
- the alternative embodiment which provides for the containment bowl 2 of the non-removable type.
- the preferred embodiment of the invention provides for that the second support structure 75 of the motion reversal unit 73 be rotatably connected to the first support structure 74 in a position such that the transmission belt 711 be suitable to slide through the empty space I defined between said two rollers 732 and 733.
- rotating such second support structure 75 around the rotational axis X5 thereof, in one direction or the other allows obtaining precisely the same conditions described above as regards the first and the second position, respectively represented in fig. 7 and in fig. 8.
- first transmission members 5 as observable in fig. 3, they comprise a second flexible transmission element 51 , preferably a transmission belt 511 , loop-wound around a second driving pulley 52 fitted on the rotary shaft 42 of the electric motor 41 and a third driven pulley 53 fitted on the rotary shaft 31 of the kneading tool 3.
- the kneading tool 3 is driven in rotation in the same direction of rotation of the aforementioned motor 41.
- additional variation means not represented in the figures, configured to modify the rotational speed of the latter with respect to the rotational speed of the motor 41 .
- the second transmission members 6 upstream of the aforementioned motion diverter unit 7, provide for a return shaft 63 which has, at a first end 63a thereof, a third driving pulley 62 and, at the second end 63b, a fourth driven pulley 64.
- such second transmission members 6 comprise a third flexible transmission element 61 , preferably a transmission belt 611 , loop-wound around the fourth driven pulley 64 and a fourth driving pulley 65, which - according to the preferred embodiment of the invention - is fitted on the rotary shaft 31 of the kneading tool 3, coaxially to the aforementioned third driven pulley 53.
- such fourth driving pulley 65 could be fitted on the rotary shaft 42 of the electric motor 41 , coaxially to the aforementioned second driving pulley 52.
- the second transmission members 6 comprise a fourth flexible transmission element 66, preferably a transmission belt 661 , loop-wound around the third driving pulley 62 and the aforementioned first driven pulley 731 of the motion diverter unit 7.
- the presence of such return shaft 63 serves to transfer the rotary motion generated by the electric motor 41 along the vertical axis, in that the electric motor 41 and the containment bowl 2 are arranged vertically on two different levels, as observable in fig. 3.
- An alternative embodiment of the mixing machine 1 of the invention which provides for arranging the containment bowl 2 and the electric motor 41 on the same level and the kneading tool 3 arranged above at a different level, could provide for the possibility of inserting such return shaft 63 between the electric motor 41 and the kneading tool 3.
- variation means configured to change the rotational speed of the containment bowl 2 with respect to the rotational speed of the rotary motion generated by the electric motor 41.
- the mixing machine 1 of the invention attains all the preset objects.
- the object of providing a machine for mixing food products capable of driving the containment bowl and the kneading tool in rotation according to two opposite directions of rotation, while simultaneously maintaining the costs and weight of the mixing machine low with respect to the mixing machines of the prior art, is attained.
- the object of providing a mixing machine capable of enabling to obtain a dough with quality similar to the one that can be obtained using a mixing machine with two motion generation sources of the prior art is also attained.
- the object of providing a mixing machine capable of enabling the rotation of the bowl and the tool in the same direction of rotation or, alternatively, in opposite directions, without requiring two rotary motion generation sources and without requiring the intervention of an operator on the structure of the machine, is attained.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUB2015A003544A ITUB20153544A1 (en) | 2015-09-10 | 2015-09-10 | MIXER MACHINE |
PCT/IB2016/055327 WO2017042694A1 (en) | 2015-09-10 | 2016-09-07 | Mixing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3346844A1 true EP3346844A1 (en) | 2018-07-18 |
Family
ID=54843986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16795137.5A Withdrawn EP3346844A1 (en) | 2015-09-10 | 2016-09-07 | Mixing machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3346844A1 (en) |
IT (1) | ITUB20153544A1 (en) |
WO (1) | WO2017042694A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110881489B (en) * | 2019-12-25 | 2021-04-06 | 河南职业技术学院 | Imitative artifical kneading device of range upon range of formula |
IT202000000904A1 (en) * | 2020-01-17 | 2021-07-17 | Lp Group Srl | Mixer comprising a fixed bowl |
CN111700085B (en) * | 2020-06-30 | 2022-06-24 | 深圳市三利达电器科技有限公司 | Dough kneading device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1959799A1 (en) * | 1969-11-28 | 1971-06-03 | Kemper Kate | Plant for the preparation of dough or similar goods |
DE8525866U1 (en) * | 1985-09-11 | 1985-11-07 | Häussler, Karl-Heinz, 7940 Heiligkreuztal | Kneading machine |
-
2015
- 2015-09-10 IT ITUB2015A003544A patent/ITUB20153544A1/en unknown
-
2016
- 2016-09-07 EP EP16795137.5A patent/EP3346844A1/en not_active Withdrawn
- 2016-09-07 WO PCT/IB2016/055327 patent/WO2017042694A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
ITUB20153544A1 (en) | 2017-03-10 |
WO2017042694A1 (en) | 2017-03-16 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Extension state: BA ME |
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DAV | Request for validation of the european patent (deleted) | ||
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Effective date: 20190916 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18D | Application deemed to be withdrawn |
Effective date: 20200128 |