WO2013030037A1 - Spindle for mixing frozen dessert - Google Patents

Spindle for mixing frozen dessert Download PDF

Info

Publication number
WO2013030037A1
WO2013030037A1 PCT/EP2012/066235 EP2012066235W WO2013030037A1 WO 2013030037 A1 WO2013030037 A1 WO 2013030037A1 EP 2012066235 W EP2012066235 W EP 2012066235W WO 2013030037 A1 WO2013030037 A1 WO 2013030037A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
thread
cuts
mixing
spindle according
Prior art date
Application number
PCT/EP2012/066235
Other languages
French (fr)
Inventor
Asbjørn HANSEN SR.
Original Assignee
Marienlyst Eiendom As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from NO20111193A external-priority patent/NO333371B1/en
Priority claimed from US13/223,854 external-priority patent/US20130058188A1/en
Application filed by Marienlyst Eiendom As filed Critical Marienlyst Eiendom As
Publication of WO2013030037A1 publication Critical patent/WO2013030037A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/04—Production of frozen sweets, e.g. ice-cream
    • A23G9/22—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups
    • A23G9/224—Agitators or scrapers
    • 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
    • B01F27/1141—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections having holes in the surface
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B01F27/921—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle
    • B01F27/9212—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle with conical helices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/06—Mixing of food ingredients
    • B01F2101/13—Mixing of ice-cream ingredients

Definitions

  • the present invention describes details of an apparatus for mixing and blending ice cream and other frozen desserts. More specifically the invention describes details of a spindle for a mixing apparatus.
  • a mixing apparatus for mixing ice cream and other frozen desserts with one or more additives typically comprises a funnel for holding the frozen dessert and additives, a spindle for creating a mixing action, a spindle driver for rotating the spindle, and a linear actuator for relative movement of the funnel and spindle into a position in which the spindle is telescoped into the funnel, in which position a rotation of spindle will mix the different ingredients of the frozen dessert.
  • the ice cream would dispense too quickly if the spindle was washed just before being used, because the friction between the spindle and the surface of the mixing house probably was too small. Further that the ice cream would stick to the spindle when it was cold leaving a portion of the product mix sticking to the spindle.
  • the geometry of the spindle was more or less similar through different development stages until about 2007 when work for improving the spindle started.
  • the amount of sugar in the ice cream was increased to soften the ice cream.
  • the temperature and amount of the fruit were decreased.
  • the mixing house was insulated to maintain a steady temperature of the surface in order to keep constant friction.
  • the motor power driving the spindle was increased.
  • Several changes of the spindle were made and tested.
  • the diameter of the spindle was increased, and cuts were made in the spindle.
  • the idea of making cuts was to make the "cutting" of the ice cream and fruit more effective. We found that the power required is less and the stress on the machine is less.
  • Several designs of the spindle were tested. Among these were a few cuts half way into the threads; many cuts half way into the threads; many cuts full into the threads; varying the number of cuts, and experimenting with cutting the threads at an angle such that the cuts were more effective.
  • the inventive spindle has been made for overcoming known problems, and the final design of the spindle was produced after extensive product development and testing.
  • the following disclosure relate to a spindle for a mixing apparatus for making ice cream.
  • the apparatus and spindle described is however well suited for mixing other types of desserts.
  • the object of the invention is to provide a spindle for a mixing apparatus with improved mixing and dispensing properties.
  • the invention is defined by a spindle for mixing frozen desserts in a closed mixing chamber formed by a funnel and a top chamber, the spindle is accommodated through said top chamber with driver means for rotating the spindle, said spindle comprises an auger thread revolving around the centre axis of the spindle making a conical helix from the tip of the spindle and along a portion of the spindle in the axial direction, and where the thread of the spindle is made in a continuous embodiment with several cuts partly into the thread.
  • Fig. 1 shows an overall view of a spindle according to the invention
  • Fig. 2A shows details of a cut in the thread that is V-shaped
  • Fig. 2B shows details of a cut in the thread that is U-shaped
  • Fig. 3 shows that a profile of a cut in the thread.
  • Figure 1 shows an overall view of a spindle according to the invention.
  • the main functions of the spindle is mixing frozen desserts in a closed mixing chamber formed by a funnel and a top chamber and to dispense the dessert through a valve in the funnel part of the mixing chamber.
  • the spindle is accommodated through said top chamber, and rotated by driving means.
  • the spindle comprises an auger thread revolving around the centre axis of the spindle making a conical helix from the tip of the spindle and along a portion of the spindle in the axial direction.
  • the spindle is characterised in that a thread is made in an unbroken embodiment with several cuts partly into the thread.
  • the cuts in the thread are V-shaped or U-shaped ref. Fig 2A and 2B. A combination of V-shaped and U-shaped cuts is also feasible. Each cut has preferably a width between 5-20mm.
  • the cuts are further made at an angle relative to the upper and lower face of the thread such that the part of the cuts on the lower face of the thread acts as a cutting blade when the spindle is rotating, ref. Fig.3.
  • the cuts are provided in the thread where the outer diameter of the thread exceeds a predetermined measurement, e.g. more that 720 degrees from the tip of the spindle.
  • the cuts are placed a distance between 60° and 90° from each other, i.e. from 4 to 6 cuts per 360°.
  • the number of cuts can be increased when the diameter of the spindle increases. However, mixing rarely takes place above the fourth thread.
  • the pitch of the threads revolving around the centre axis of the spindle is varying between 10-30mm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Confectionery (AREA)

Abstract

A spindle for mixing frozen desserts in a closed mixing chamber formed by a funnel and a top chamber, the spindle is accommodated in said top chamber with driver means for rotating the spindle, said spindle comprises an auger thread revolving around the centre axis of the spindle making a conical helix from the tip of the spindle and along a portion of the spindle in the axial direction, and where the thread of the spindle is made in a continuous embodiment with several cuts partly into the thread.

Description

Spindle for mixing frozen dessert
FIELD OF THE INVENTION
The present invention describes details of an apparatus for mixing and blending ice cream and other frozen desserts. More specifically the invention describes details of a spindle for a mixing apparatus.
BACKGROUND OF THE INVENTION
A mixing apparatus for mixing ice cream and other frozen desserts with one or more additives typically comprises a funnel for holding the frozen dessert and additives, a spindle for creating a mixing action, a spindle driver for rotating the spindle, and a linear actuator for relative movement of the funnel and spindle into a position in which the spindle is telescoped into the funnel, in which position a rotation of spindle will mix the different ingredients of the frozen dessert.
Around 1996, the applicant developed the first prototype of a spindle for frozen desserts. It was a conical spindle with continuous threads. The spindle was connected to an electrical motor. During testing with the prototype various challenges were encountered. One of theses was that the ice cream mix would not always dispense from the spindle. Another was that the motor was not strong enough to mix fruit and the ice cream. This would typically occur if the temperature of the ice cream was too cold or if the fruit mix was too hard, for example with frozen strawberries. The motor driving the spindle up and down was further not strong enough if the ice cream/fruit was too cold.
The ice cream would dispense too quickly if the spindle was washed just before being used, because the friction between the spindle and the surface of the mixing house probably was too small. Further that the ice cream would stick to the spindle when it was cold leaving a portion of the product mix sticking to the spindle.
The geometry of the spindle was more or less similar through different development stages until about 2007 when work for improving the spindle started.
When working with improving the spindle different parameter of the mixing apparatus where changed and tested. The temperature of the ice cream was maintained above
-18°C. The amount of sugar in the ice cream was increased to soften the ice cream. The temperature and amount of the fruit were decreased. The mixing house was insulated to maintain a steady temperature of the surface in order to keep constant friction. The motor power driving the spindle was increased.
After testing the different parameters, we found that there still were several weaknesses with the mixing apparatus. To dispense the product completely we had to change the rotational speed of the spindle during dispensing. However, sometimes the product would still not dispense even at full speed. The mixing of the ice cream and fruit was not always satisfactory. Sometimes the ice cream would dispense too early before it was properly mixed with the fruit. The temperature of the ice cream was also a challenge. Although the power of the motor driving the spindle was increased, the force required for mixing was sometimes too large for the machine to handle.
The focus was then changed to the design of the spindle itself for improving mixing and disposing of the mixed product. Several changes of the spindle were made and tested. The diameter of the spindle was increased, and cuts were made in the spindle. The idea of making cuts was to make the "cutting" of the ice cream and fruit more effective. We found that the power required is less and the stress on the machine is less. Several designs of the spindle were tested. Among these were a few cuts half way into the threads; many cuts half way into the threads; many cuts full into the threads; varying the number of cuts, and experimenting with cutting the threads at an angle such that the cuts were more effective.
Testing showed that if there are too many cuts, the ice cream mix will not dispense, i.e. it is left in the spindle. If the cuts are too narrow there will be problems with washing the spindle.
The inventive spindle has been made for overcoming known problems, and the final design of the spindle was produced after extensive product development and testing. The following disclosure relate to a spindle for a mixing apparatus for making ice cream. The apparatus and spindle described is however well suited for mixing other types of desserts.
SUMMARY OF THE INVENTION
The object of the invention is to provide a spindle for a mixing apparatus with improved mixing and dispensing properties.
The invention is defined by a spindle for mixing frozen desserts in a closed mixing chamber formed by a funnel and a top chamber, the spindle is accommodated through said top chamber with driver means for rotating the spindle, said spindle comprises an auger thread revolving around the centre axis of the spindle making a conical helix from the tip of the spindle and along a portion of the spindle in the axial direction, and where the thread of the spindle is made in a continuous embodiment with several cuts partly into the thread.
Further features of the invention are defined in the dependent claims.
It should be understood that the detailed description and specific examples, while indicating preferred embodiments of the spindle are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art. BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be explained by a description of a preferred embodiment with reference to the accompanying drawings which are given by way of illustration. The scope of the invention is defined in the main claim.
Fig. 1 shows an overall view of a spindle according to the invention;
Fig. 2A shows details of a cut in the thread that is V-shaped;
Fig. 2B shows details of a cut in the thread that is U-shaped, and
Fig. 3 shows that a profile of a cut in the thread. DESCRIPTION OF PREFERRED EMBODIMENTS
Figure 1 shows an overall view of a spindle according to the invention. The main functions of the spindle is mixing frozen desserts in a closed mixing chamber formed by a funnel and a top chamber and to dispense the dessert through a valve in the funnel part of the mixing chamber. The spindle is accommodated through said top chamber, and rotated by driving means. The spindle comprises an auger thread revolving around the centre axis of the spindle making a conical helix from the tip of the spindle and along a portion of the spindle in the axial direction. The spindle is characterised in that a thread is made in an unbroken embodiment with several cuts partly into the thread.
In one embodiment, the cuts in the thread are V-shaped or U-shaped ref. Fig 2A and 2B. A combination of V-shaped and U-shaped cuts is also feasible. Each cut has preferably a width between 5-20mm.
The cuts are further made at an angle relative to the upper and lower face of the thread such that the part of the cuts on the lower face of the thread acts as a cutting blade when the spindle is rotating, ref. Fig.3.
In one embodiment, the cuts are provided in the thread where the outer diameter of the thread exceeds a predetermined measurement, e.g. more that 720 degrees from the tip of the spindle.
In one embodiment the cuts are placed a distance between 60° and 90° from each other, i.e. from 4 to 6 cuts per 360°. The number of cuts can be increased when the diameter of the spindle increases. However, mixing rarely takes place above the fourth thread.
In one embodiment the pitch of the threads revolving around the centre axis of the spindle is varying between 10-30mm.
Different thicknesses of the thread have been studied, and it is found that a thickness between 2-4mm is advantageous. The thickness of the thread can also vary along the axis of the spindle. For a man skilled in the art it is obvious that he invention described above can be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious are intended to be included within the scope of the following claims.

Claims

1. A spindle for mixing frozen desserts in a closed mixing chamber formed by a funnel and a top chamber, the spindle is accommodated in said top chamber with driver means for rotating the spindle, said spindle comprises an auger thread revolving around the centre axis of the spindle making a conical helix from the tip of the spindle and along a portion of the spindle in the axial direction, and where the spindle is
c h a r a c t e r i z e d in that a thread is made in an unbroken embodiment with several cuts partly into the thread.
2. A spindle according to claim 1, where said cuts in the thread are V-shaped and/or U-shaped.
3. A spindle according to claim 1, where said cuts in the thread are made at an angle relative to the upper and lower face of the thread such that the part of the cuts on the lower face of the thread acts as a cutting blade when the spindle is rotating.
4. A spindle according to claim 1, where said cuts are provided in the thread where the outer diameter of the thread exceeds a predetermined measurement.
5. A spindle according to claim 4, where the predetermined measurement is more that 720 degrees from the tip of the spindle.
6. A spindle according to claim 1, where said cuts into the thread are placed a distance between 60° and 90° from each other.
7. A spindle according to claim 1, where the pitch of the threads revolving around the centre axis of the spindle is varying.
8. A spindle according to claim 1, where the pitch of the threads is between
10-30mm.
9. A spindle according to claim 1, where the thickness of the thread is varying along the axis of the spindle.
10. A spindle according to claim 1 , where the thickness of the thread is between 2-4mm.
PCT/EP2012/066235 2011-09-01 2012-08-21 Spindle for mixing frozen dessert WO2013030037A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO20111193A NO333371B1 (en) 2011-09-01 2011-09-01 Spindle for mixing frozen dessert
NO20111193 2011-09-01
US13/223,854 2011-09-01
US13/223,854 US20130058188A1 (en) 2011-09-01 2011-09-01 Spindle for mixing frozen dessert

Publications (1)

Publication Number Publication Date
WO2013030037A1 true WO2013030037A1 (en) 2013-03-07

Family

ID=46724411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/066235 WO2013030037A1 (en) 2011-09-01 2012-08-21 Spindle for mixing frozen dessert

Country Status (1)

Country Link
WO (1) WO2013030037A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2012936A (en) * 1978-01-09 1979-08-01 King Seeley Thermos Co Ice Auger and Ice Extruder and Ice Making Apparatus Using Such Auger
US4525073A (en) * 1978-01-09 1985-06-25 King-Seeley Thermos Company Ice making apparatus
US4708489A (en) * 1984-06-04 1987-11-24 Wizards Ice Cream & Confectionery Shoppe, Ltd. Blending machine
WO2001043562A1 (en) * 1999-12-17 2001-06-21 Marienlyst Eiendom As An auger for an ice cream mixing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2012936A (en) * 1978-01-09 1979-08-01 King Seeley Thermos Co Ice Auger and Ice Extruder and Ice Making Apparatus Using Such Auger
US4525073A (en) * 1978-01-09 1985-06-25 King-Seeley Thermos Company Ice making apparatus
US4708489A (en) * 1984-06-04 1987-11-24 Wizards Ice Cream & Confectionery Shoppe, Ltd. Blending machine
WO2001043562A1 (en) * 1999-12-17 2001-06-21 Marienlyst Eiendom As An auger for an ice cream mixing apparatus

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