GB2565994A - Adaptor and method for converting a sausage extrusion machine - Google Patents

Adaptor and method for converting a sausage extrusion machine Download PDF

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Publication number
GB2565994A
GB2565994A GB1704153.4A GB201704153A GB2565994A GB 2565994 A GB2565994 A GB 2565994A GB 201704153 A GB201704153 A GB 201704153A GB 2565994 A GB2565994 A GB 2565994A
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GB
United Kingdom
Prior art keywords
extrusion
collagen
adaptor
filler material
static
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Withdrawn
Application number
GB1704153.4A
Other versions
GB201704153D0 (en
Inventor
August Schultz Hermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Freddy Hirsch Group AG
Freddy Hirsch Group Pty Ltd
Original Assignee
Freddy Hirsch Group AG
Freddy Hirsch Group Pty Ltd
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
Application filed by Freddy Hirsch Group AG, Freddy Hirsch Group Pty Ltd filed Critical Freddy Hirsch Group AG
Priority to GB1704153.4A priority Critical patent/GB2565994A/en
Publication of GB201704153D0 publication Critical patent/GB201704153D0/en
Publication of GB2565994A publication Critical patent/GB2565994A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C11/00—Sausage making ; Apparatus for handling or conveying sausage products during manufacture
    • A22C11/001—Machines for making skinless sausages, e.g. Frankfurters, Wieners
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C11/00—Sausage making ; Apparatus for handling or conveying sausage products during manufacture
    • A22C11/02—Sausage filling or stuffing machines
    • A22C11/0209—Stuffing horn assembly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Meat And Fish (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Abstract

A static extrusion machine 10 suitable for co-extruding an alginate gel sausage casing material with a filler material, includes a static extrusion head 12 comprising an extrusion nozzle 14 incorporating a static cylindrical extrusion die (16, figure 10) and an adaptor 18. The invention extends to the adaptor 18 which is configured for converting a collagen extrusion machine into the static extrusion machine 10 and comprises a connector body 20 for connecting the extrusion nozzle 14 to a filler material feed pipe of the collagen extrusion machine. The collagen extrusion machine is of a type incorporating rotating jacket technology and includes the filler material feed pipe which passes through a centre of an extrusion head of the collagen extrusion machine for conveying filler material through the extrusion head. The extrusion head of the collagen extrusion machine is removed and a static extrusion head is installed in place thereof between the filler material feed pipe of the collagen extrusion machine and the static extrusion head, thereby converting the collagen extrusion machine into the static extrusion machine.

Description

ADAPTOR AND METHOD FOR CONVERTING A SAUSAGE EXTRUSION MACHINE
FIELD OF INVENTION
This invention relates to a method for converting a sausage extrusion machine. It relates also to an adaptor for use in converting a sausage extrusion machine.
BACKGROUND TO INVENTION
Edible casings for sausages are typically produced from the sub-mucosal layer of animal intestines or are manufactured in an extrusion process wherein a sausage 10 casing material is co-extruded together with a filler material to form an edible casing for the filler material.
It is known to use collagen or a collagen-based substance as a sausage casing material for forming an edible casing around a filler material in a co-extrusion process. The 15 collagen is typically re-generated collagen obtained from bovine or porcine skin. The collagen may comprise collagen only or a composition comprising a mixture of collagen and other substances.
Collagen is naturally fibrous and as such, the collagen fibres have a tendency to become aligned during an extrusion process, along the axis of extrusion. This alignment of collagen fibres during extrusion is undesirable as it significantly weakens the structural integrity and durability of the sausage casing. In order to counteract the tendency of collagen fibres to become aligned with the extrusion axis during an extrusion process, the collagen composition is stirred and agitated immediately prior to extrusion. In addition, sausage extrusion machines have been developed which apply rotation forces to the collagen composition during extrusion so as to limit alignment of collagen fibres and promote cross over of collagen fibres. Known collagen extrusion machines of this type typically make use of single rotating jackets or independently counter-rotating jackets to promote crossing over of collagen fibres. Commercially available collagen extrusion machines utilising rotating jacket technology are supplied by companies such as Marel SA (Pty) Ltd and Stork Townsend B.V.
Such collagen extruders using rotating or counter-rotating extrusion technologies are relatively expensive compared to static head extrusion systems due to the complexity of such extruders and the control systems required to achieve the desired degree of crossover of collagen fibres during extrusion. Accordingly, in order to form a sausage casing around a filler material, a collagen or collagen-based composition is co-extruded with the filler material using a collagen extrusion machine including an extrusion head incorporating a single rotating jacket or independently counter-rotating jackets. The filler material is conveyed into the extrusion head via a filler feed pipe which is connected to the extrusion head. The collagen sausage casing composition is conveyed to the extrusion head via a casing feed pipe which is connected to the extrusion head. After extrusion, the extruded sausage is conveyed from the extrusion head. Any reference in this specification to a “collagen extrusion machine” must be interpreted to mean a reference to an extrusion machine of a type as described hereinabove for co-extruding a collagen or collagen-based sausage casing material with a sausage filler material, wherein the extruder includes an extrusion head having a single rotating jacket or counter-rotating jackets for applying rotation forces to the collagen for limiting alignment of collagen fibres and promoting cross-over of collagen fibres.
It is also known to use an alginate-based composition as a sausage casing material. In order to form a sausage casing from an alginate-based sausage casing composition, an alginate solution is co-extruded with a sausage filler material using a sausage extrusion machine including a static extrusion head comprising an extrusion nozzle incorporating a static cylindrical extrusion die. The alginate solution is thereafter treated with a calcium chloride solution which causes the alginate composition to undergo a gelification process in which matrices of cross-linked alginate chains form a circumfused casing layer around the filler material. The filler material is conveyed into the extrusion head via a filler feed pipe which is connected to the extrusion nozzle. The alginate solution is conveyed to the extrusion nozzle via a casing feed pipe which is connected to the extrusion nozzle. After extrusion, the extruded sausage is conveyed from the extrusion nozzle via a channel section where a setting agent is applied to the alginate sausage casing for setting the casing so as to form a circumfused layer around the filler material. Any reference in this specification to a “static extrusion machine” must be interpreted to mean a static extrusion machine as described hereinabove having a static extrusion head incorporating a static cylindrical extrusion die, which is suitable for use in co-extruding an alginate-based sausage casing composition with a filler material.
Unlike collagen or collagen-based sausage casing compositions, alginate-based sausage casing compositions do not contain fibres and thus do not suffer from the challenges associated with the extrusion of collagen or collagen-based sausage casing compositions as described hereinabove. As such, rotating or counter-rotating jackets are not required for extrusion heads for use in the co-extrusion of alginate-based sausage casing materials. In fact, co-extrusion heads having rotating or counterrotating jackets are wholly unsuited for the extrusion of alginate sausage casing compositions and pose unwanted challenges in achieving a desired coverage of the casing layer around a filler material and subsequent gelification of the casing layer.
It is an object of the present invention to convert a collagen extrusion machine suitable for co-extrusion of a collagen sausage casing material with a filler material into a static extrusion machine suitable for co-extrusion of an alginate sausage casing material with a filler material, obviating the need to replace the entire collagen extrusion machine with a static extrusion machine or purchase a separate static extrusion machine should it be required to manufacture sausages having both collagen and alginate sausage casings.
SUMMARY OF INVENTION
According to a first aspect of the invention there is provided a method of converting a collagen extrusion machine suitable for co-extruding a collagen sausage casing material, with a filler material, into a static extrusion machine suitable for co-extruding an alginate sausage casing material with a filler material, the method including:
providing an adaptor comprising a connector body having first and second open ends and defining an internal passage extending between the ends, the connector body defining a first connecting formation at the first end thereof and a second connecting formation at the second end thereof;
removing the extrusion head of the collagen extrusion machine;
in place of the extrusion head of the collagen extrusion machine, installing a static extrusion head suitable for co-extrusion of an alginate sausage casing material with a filler material;
connecting the first connecting formation of the adaptor to a filler material feed pipe of the collagen extrusion machine;
connecting the second connecting formation of the adaptor to the static extrusion head; and connecting a casing feed pipe to the static extrusion head for conveying the alginatebased sausage casing material to the static extrusion head.
According to a second aspect of the invention there is provided an adaptor for use in converting a collagen extrusion machine suitable for co-extruding a collagen sausage casing material with a filler material into a static extrusion machine suitable for coextruding an alginate sausage casing material with a filler material, the adaptor comprising a connector body having first and second open ends and defining an internal passage extending between the ends, the connector body defining a first connecting formation near the first end for connection to a filler material feed pipe of the collagen extrusion machine and a second connecting formation near the second end for connection to a static extrusion head after replacing a collagen extrusion head of the collagen extrusion machine with the static extrusion head.
The internal passage of the connector body may be configured and dimensioned so as to define an internal diameter which is similar to an internal diameter of the filler feed pipe, the connector body forming an extension of the filler feed pipe when connected thereto, in use, for conveying filler material to the static extrusion head.
The first connecting formation may comprise an engagement formation for complementary engagement with a formation of the filler material feed pipe for connecting the connector body to the filler material feed pipe. More specifically, the first connecting formation may be in the form of a screw thread formation for screw-threaded engagement with the filler material feed pipe. The screw thread may be an external screw thread for screw-threaded engagement with an internal screw thread of the filler material feed pipe.
The second connecting formation may comprise a formation for complementary engagement with a formation of the filler material feed pipe for connecting the connector body to the filler material feed pipe.
More specifically, the second connecting formation may be in the form of a screw thread formation for screw-threaded engagement with the static extrusion head. The screw thread may be an external screw thread for screw-threaded engagement with an internal screw thread of the static extrusion head.
The invention extends to the static extrusion machine as defined and described hereinabove in accordance with the second aspect of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Further features of the invention are described hereinafter by way of a non-limiting example of the invention, with reference to and as illustrated in the accompanying diagrammatic drawings. In the drawings:
Figure 1 shows a schematic block diagram of a prior art collagen extrusion machine;
Figure 2 shows a side elevation of the collagen extrusion machine of Figure 1;
Figure 3 shows enlarged detail A of the collagen extrusion machine of Figure 2;
Figure 4 shows a side view of a converted static extrusion machine in accordance with the invention;
Figure 5 shows an end view of the converted static extrusion machine of Figure 4;
Figure 6 shows a three-dimensional view of the converted static extrusion machine of Figure 4;
Figure 7 shows a top plan view of the converted static extrusion machine of Figure 4;
Figure 8 shows a partly sectioned side view of the converted static extrusion machine of Figure 4;
Figure 9 shows a partly sectioned top plan view of the converted static extrusion machine of Figure 4;
Figure 10 shows a three-dimensional view of an extrusion nozzle, adaptor and part of a filler feed pipe of the static extrusion machine of Figure 4, in an assembled condition;
Figure 11 shows a side view of the extrusion nozzle, adaptor and filler feed pipe assembly of Figure 10;
Figure 12 shows an exploded three-dimensional view of the extrusion nozzle, adaptor and part of the filler feed pipe of the static extrusion machine of Figure 4;
Figure 13 shows an end view of the assembled extrusion nozzle, adaptor and part of the filler feed pipe of Figure 10;
Figure 14 shows a sectional side view of the assembly of Figure 10, sectioned along section line XIV-XIV of Figure 13;
Figure 15 shows a three-dimensional view of the adaptor of the static extrusion machine of Figure 4;
Figure 16 shows another three-dimensional view of the adaptor of Figure 15;
Figure 17 shows a sectional side view of the adaptor of Figure 15, sectioned along XVIIXVII of Figure 16;
Figure 18 shows a side view of the extrusion nozzle of the static extrusion machine of Figure 4; and
Figure 19 shows an end view of the extrusion nozzle of Figure 18.
DETAILED DESCRIPTION OF THE INVENTION
With reference to Figures 1 to 3 of the drawings, a prior art collagen extrusion machine utilizing rotating jacket technology, which is suitable for co-extruding a collagen sausage casing material with a filler material, is designated by the reference numeral 1. The collagen extrusion machine 1 includes an extrusion head 2 incorporating counterrotating jackets 3 which are driven by an electric motor 4 via a belt drive system 5. The collagen extrusion machine includes a filler feed pipe 6 which passes through the centre of the extrusion head for conveying a filler material such as a meat filler emulsion through the extrusion head. A collagen sausage casing composition is conveyed to the extrusion head via a casing feed pipe 7 which is connected to the extrusion head, for co-extrusion with the filler material. The filler material is pumped along the filler feed pipe 6 from a hopper 6.1 by means of a pump 9. The collagen sausage casing composition is pumped along the casing feed pipe 7 from a hopper 6.1 by means of a pump 9.
After extrusion, extruded sausage having a collagen casing layer attached to an outer side of the filler material is conveyed from the extrusion head in the form of a sausage pipe 8.
With reference to Figures 4 to 19 of the drawings, a static extrusion machine produced by conversion of the collagen extrusion machine 1 in accordance with the invention, is designated generally by the reference numeral 10. The static extrusion machine 10 is suitable for co-extruding an alginate sausage casing material with a filler material such as a meat emulsion. The static extrusion machine 10 includes a static extrusion head 12 comprising an extrusion nozzle 14 incorporating a static cylindrical extrusion die16.
The static extrusion machine includes an adaptor 18 comprising a connector body 20 for connecting the extrusion nozzle 14 to the filler feed pipe 6 of the collagen extrusion machine 1.
In accordance with the invention, a method of converting the collagen extrusion machine 1 which is suitable for co-extruding a collagen sausage casing material with a filler material such as a meat emulsion, into the static extrusion machine 10 includes disabling the drive mechanism 5 for the counter-rotating jackets 3 of the extrusion head. The counter-rotating jackets and any associated utilities such as pipes for cooling fluid, and the like, are then disconnected and removed. The adaptor 18 is connected at one end thereof, to the filler material feed pipe 6 and the extrusion nozzle 14 is connected to the other end of the adaptor. Finally, an alginate casing feed pipe 21 is connected to the extrusion nozzle 14.
An end of the filler material feed pipe is connected to a discharge nozzle through which the extruded sausage is discharged. As such, the end of the filler material feed pipe defines an internal screw thread for connection to the discharge nozzle.
The connector body 20 of the adaptor has an open end 22 at one end thereof and an open end 24 at an opposite end and an internal passage 25 which extends between the ends 22, 24. A first raised collar having an external screw thread 26 is disposed near the end 22 of the connector body for screw threaded engagement with the internal screw thread of the filler material feed pipe 6 for connecting the adaptor to the end of the pipe 6. A second raised collar having an external screw 28 is disposed at the end 24 of the connector body for screw threaded engagement with the extrusion nozzle 18 for connecting the extrusion nozzle to the adaptor, the extrusion nozzle having a complementary internal screw thread for engagement with the screw thread 28. Flat engagement faces 30 are provided on external sides of the connector body, permitting the connector body to be engaged by a spanner or other tool for applying a rotation force to the connector body for screwing the ends of the connector body into the ends of the filler material feed pipe 6 and the extrusion nozzle 14. One of the screw threads 26, 28 is a left hand thread and the other thread is a right hand thread. The internal 5 diameter of the passage 25 is similar to the internal diameter of the pipe 6 thereby forming an extension of the pipe 6 when connected to the pipe for conveying filler material to the extrusion nozzle 14.
The invention extends to the adaptor. The invention also extends to the converted 10 static extrusion machine.
The conversion method described hereinabove using the adaptor provides for simply, yet inexpensively and effectively converting a collagen extrusion machine into a static extrusion machine.

Claims (11)

CLAIMS:
1. A method of converting a collagen extrusion machine suitable for co-extruding a collagen sausage casing material, with a filler material, into a static extrusion machine suitable for co-extruding an alginate sausage casing material with a filler material, the method including:
providing an adaptor comprising a connector body having first and second open ends and defining an internal passage extending between the ends, the connector body defining a first connecting formation at the first end thereof and a second connecting formation at the second end thereof;
removing the extrusion head of the collagen extrusion machine;
in place of the extrusion head of the collagen extrusion machine, installing a static extrusion head suitable for co-extrusion of an alginate sausage casing material with a filler material;
connecting the first connecting formation of the adaptor to a filler material feed pipe of the collagen extrusion machine;
connecting the second connecting formation of the adaptor to the static extrusion head; and connecting a casing feed pipe to the static extrusion head for conveying the alginate-based sausage casing material to the static extrusion head.
2. An adaptor for use in converting a collagen extrusion machine suitable for coextruding a collagen sausage casing material with a filler material, into a static extrusion machine suitable for co-extruding an alginate sausage casing material with a filler material, the adaptor comprising:
a connector body having first and second open ends and defining an internal passage extending between the ends, the connector body defining a first connecting formation near the first end for connection to a filler material feed pipe of the collagen extrusion machine and a second connecting formation near the second end for connection to a static extrusion head after replacing a collagen extrusion head of the collagen extrusion machine with the static extrusion head.
3. The adaptor as claimed in claim 2, wherein the internal passage of the connector body is configured and dimensioned so as to define an internal diameter which is similar to an internal diameter of the filler feed pipe, the connector body forming an extension of the filler feed pipe when connected thereto, in use, for conveying filler material to the static extrusion head.
4. The adaptor as claimed in claim 2 or claim 3, wherein the first connecting formation comprises a formation for complementary engagement with a formation of the filler material feed pipe for connecting the connector body to the filler material feed pipe.
5. The adaptor as claimed in claim 4, wherein the first connecting formation is in the form of a screw thread formation for screw-threaded engagement with the filler material feed pipe.
6. The adaptor as claimed in claim 5, wherein the screw thread is an external screw thread for screw-threaded engagement with an internal screw thread of the filler material feed pipe.
7. The adaptor as claimed in any one of claims 2 to 6, wherein the second connecting formation comprises an engagement formation for complementary engagement with a formation of the filler material feed pipe for connecting the connector body to the filler material feed pipe.
8. The adaptor as claimed in claim 7, wherein the second connecting formation is in the form of a screw thread formation for screw-threaded engagement with the static extrusion head.
9. The adaptor as claimed in claim 8, wherein the screw thread is an external screw thread for screw-threaded engagement with an internal screw thread of the static extrusion head.
10. The adaptor as claimed in any one of claims 2 to 9, wherein the adaptor is configured for use in the method according to claim 1.
11. A static extrusion machine including the adaptor as claimed in any one of claims 2 to 10.
GB1704153.4A 2017-03-15 2017-03-15 Adaptor and method for converting a sausage extrusion machine Withdrawn GB2565994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1704153.4A GB2565994A (en) 2017-03-15 2017-03-15 Adaptor and method for converting a sausage extrusion machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1704153.4A GB2565994A (en) 2017-03-15 2017-03-15 Adaptor and method for converting a sausage extrusion machine

Publications (2)

Publication Number Publication Date
GB201704153D0 GB201704153D0 (en) 2017-04-26
GB2565994A true GB2565994A (en) 2019-03-06

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Family Applications (1)

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GB1704153.4A Withdrawn GB2565994A (en) 2017-03-15 2017-03-15 Adaptor and method for converting a sausage extrusion machine

Country Status (1)

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Non-Patent Citations (1)

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