CA1092305A - Process and apparatus for obtaining fish pulp - Google Patents
Process and apparatus for obtaining fish pulpInfo
- Publication number
- CA1092305A CA1092305A CA277,154A CA277154A CA1092305A CA 1092305 A CA1092305 A CA 1092305A CA 277154 A CA277154 A CA 277154A CA 1092305 A CA1092305 A CA 1092305A
- Authority
- CA
- Canada
- Prior art keywords
- drum
- fish
- fillets
- peripheral wall
- guide plate
- 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.)
- Expired
Links
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- Processing Of Meat And Fish (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:-In a process and an apparatus for obtaining pulp from fish comprising the steps of beheading, gutting and filleting such fish to provide fillets and using a press separating machine comprising a perforated drum and a presser member the invention lies in placing single or double fillets in non-overlapping relationship on the peripheral wall of the rotatable perforated drum so that the fillets lie against the peripheral wall of the drum, pressing the fillets against the peripheral wall of the drum to urge portions thereof through the perforations in the drum wall and into the interior of the drum, and continuously withdrawing the resulting fish pulp from the interior of the drum.
Description
;,;
The present invention relates to a process and to an apparatus for obtaining fish pulp.
A process for the production of fish pulp is already known in which two fish-fillet-like pieces of fish flesh are severed from every fish with the use of a filleting machine operating without water rinsing and from which fish pulp is , ~ produced by milling comminution after their skinning without use of a separator or a straining machine.
Such a process has the disadvantage that every ` 10 fillet-like piece of fish flesh must be laid by hand on the feed belt of a skinning machine and that the fibrous structure of the fish flesh is largely destroyed when the fish pulp is obtained by milling comminution. Fish pulp of that kind inclines to jelly and is generally unsuitable for use either as a filling ; ; for fish fingers or for the manufacture of frozen fish boards or - plates.
~- It is one of the main objects of~the invention to provide for a possiblity to produce fish pulp which retains the - natural fibre structure of the fish flesh advantageously from small size fish, such as blue whiting or the like and by saving any manual activity apart from the possible feeding of the fish . :.. . . . .
- filleting machine. i .. : .
`~ Accordingly, the invention as herein claimed is a ~ ~-process for obtaining pulp from fish, essentially comprising the ~ ;
-steps of beheading, gutting and filleting such fish to provide fillets, placing such fillets in non-overlapping relationship on the peripheral wall of a rotatable perforated drum so that the .. ~
fillets lie against the peripheral wall of the drum, pressing the fillets against the peripheral wall o~ the drum to urge portions thereof through the perforations in the drum wall and into the interior of the drum, and continuously withdrawing the resulting fish pulp from the interior of~the drum. -. ~ ,,4~ .
: , :: .. . . . . .. ... .. .
~9~3~S
~ he present invention is also an apparatus for obtaining fish pulp, essentially comprising a processinc3 machine to behead, gut and fillet: fish and to place the fish fillets in non-overlapping relationship on the peripheral wall oE a rotatable perLorated frun~ so that the _ .
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- la -" ~; -: '',.'' ~9z305 rillets l:ie against the peripheral wall of the drum, a pressermember to press the rillets against th~ peri~heral wall of the drum and ther~by urge portions thereof throu~h the per-forations in the peripheral wall and into the interior Or the drum, and withdrawal means to withdraw the resulting ~ish pulp from the interior o.f the drum.
One of the main advantages achieved by the invention lies in the fact that each fillet or double fillet is fed completely automatically in an appropriate attitude and position for press separatin~ or straining to a fish straSining machine. Thereby, the obtaining of fish pulp of highest quality is made possible with best yield and, moreover, the prerequisite is given for the economical processing even of mass fish of small dimen-sions9 which are particularly suitable for processing in such apparatus.
According to a preferred embodiment of the invention an appropriate fish filleting machine may be equipped for the automatical gaining of fish pulp if a fish straining or press separating machine comprising the presser member and the rotata~le perforated drum is connected to the frame of the processing machine, the straining machine being disposed adjacent the outlet end of the processing machine and below a feed path of the latter along which the fillets are conveyed through the processing machine and the drum rotating at a peripheral speed which is at least equal to that at which the fillets are conveyed through the processing machine. In such an arrangement the pi.votable connection of the straining machine to the frame of the fish filleting machine enables the alternate use of such a fish filleting machine for the production of fish fillets or fish pulp.
In order to facilitate the automatical feeding of the fillets to the perforated drum,.the latter may be mounted to be rotatable about a substantially horizontal axis which extends transversely of the feed path, and the upper sur~ace of the peripheral wall of the drum may extend substantially tangenti.ally to the upper surface of a guide plate which defines a prolongation of the feed path. I'his upper surface of the guide plate may be substantially planar or arcuate.
.
~ 2 ~
~ .,,., ~......
~ ,, '" . .:.'; ; -f' ' ',,' ,~ ' ' According to yet another embodiment of the invention the presser member comprises and endless belt which extends into the immediate proximity of the upper surface ~f the guide plate and around a peripheral drum wall portion, which is disposed on the side of the drum remote from the guide plate and which subtends an angle 3f at least 120 at the axis of rotation of the drum. Thus a sufficient pressing length is achieved along the periphery oE the perforated drum. In such an embodiment the endless belt may extend over the upper surface of the guide plate and be guided by a deflecting roller whichis rotatably mounted above the guide plate. This allows the fillets to be safely conveyed into the pressing or straining zone by conveying them from below and above. In order to additionally facilitate the entering of the fillets into the straining zone it is advantageous to provide for a portion of the endless belt facing the peripheraI wall of the drum and extending .~ ,....................................................................... .
between the guide plate and the peripheral drum wall, said portion being guided by a pair of guide elements which support ~ :.
~; the respective edge portions of the belt, the arrangement being - 20 such that the belt portion is constrained by the guide elements to describe an upwardly arched arc.
BRIEF DESCRIPTION OF THE DRAWING
An embodiment of the present invention will now be , ~- more particularly described by way of example with reference ,- ' to the single Figure of the accompanying drawing, which shows ' ~ a perspective view of apparatus embodying the invention . -t~ including part of a filleting machine and a straining machine.
" ., .~
Referring now to the accompanying drawing, the ap-,- ~ paratus illustrated schematically kherein includes part of a fish filleting machine indiaated generally by the reference numeral 1 and a fish straining or press separating machine .: ~
- indicated generally by the reference numeral 2. The fish ...
.. .
23~5 ., filleting machine 1 is provided with a frame (not shown) which supports a number of tools, guide elements, conveying elements and drive elements some of which, in the interest of clarity of illustration, have also not been shown in the drawing.
In the drawing, a pair of belly filleting knives 11, a pair of rib knives 15 and a pair of bone knives 16 are shown disposed below a feed path 13 along which fish are fed in the direction indicated by the arrow at the left hand end of the feed path 13, which is defined by bone guides 17 and fillet guides 18~ A pair of endless belt conveyors 19, circulating in planes inclined to one another and indicated in the drawing by dash-dotted lines are arranged so that respec-tive ones of the belt conveyors are disposed on each side of and slightly above the feed path 13 for the fish. A guide plate 14 is disposed behind the~bone knives 16 at the outlet end 12 of the filleting machine 1 to define a prolongation of its -feed path. In the preferred embodiment, the guide plate 14 extends with its upper surface in a generally horizontal plane, apart from a trailing end portion of the plate which is arcuate.
~owever, the guide plate 14 may be entirelyplanar or entirely arcuate. A vertical axle 29, about which the straini~g machine
The present invention relates to a process and to an apparatus for obtaining fish pulp.
A process for the production of fish pulp is already known in which two fish-fillet-like pieces of fish flesh are severed from every fish with the use of a filleting machine operating without water rinsing and from which fish pulp is , ~ produced by milling comminution after their skinning without use of a separator or a straining machine.
Such a process has the disadvantage that every ` 10 fillet-like piece of fish flesh must be laid by hand on the feed belt of a skinning machine and that the fibrous structure of the fish flesh is largely destroyed when the fish pulp is obtained by milling comminution. Fish pulp of that kind inclines to jelly and is generally unsuitable for use either as a filling ; ; for fish fingers or for the manufacture of frozen fish boards or - plates.
~- It is one of the main objects of~the invention to provide for a possiblity to produce fish pulp which retains the - natural fibre structure of the fish flesh advantageously from small size fish, such as blue whiting or the like and by saving any manual activity apart from the possible feeding of the fish . :.. . . . .
- filleting machine. i .. : .
`~ Accordingly, the invention as herein claimed is a ~ ~-process for obtaining pulp from fish, essentially comprising the ~ ;
-steps of beheading, gutting and filleting such fish to provide fillets, placing such fillets in non-overlapping relationship on the peripheral wall of a rotatable perforated drum so that the .. ~
fillets lie against the peripheral wall of the drum, pressing the fillets against the peripheral wall o~ the drum to urge portions thereof through the perforations in the drum wall and into the interior of the drum, and continuously withdrawing the resulting fish pulp from the interior of~the drum. -. ~ ,,4~ .
: , :: .. . . . . .. ... .. .
~9~3~S
~ he present invention is also an apparatus for obtaining fish pulp, essentially comprising a processinc3 machine to behead, gut and fillet: fish and to place the fish fillets in non-overlapping relationship on the peripheral wall oE a rotatable perLorated frun~ so that the _ .
/
/
: ` / ' -, ': / ~` -' :' . ` / :.
/
.:. . / .
:`1 / : . ,.
/
~ . .................................. : /
. /
,' ' / :
. /
'.' ~ / ~' ~,:.:. / . .
: . / .
::, / ;
:~ /
, . /
..
.:: /
r~ /
';: /
' , , . .
.', ' \ ' ~
- la -" ~; -: '',.'' ~9z305 rillets l:ie against the peripheral wall of the drum, a pressermember to press the rillets against th~ peri~heral wall of the drum and ther~by urge portions thereof throu~h the per-forations in the peripheral wall and into the interior Or the drum, and withdrawal means to withdraw the resulting ~ish pulp from the interior o.f the drum.
One of the main advantages achieved by the invention lies in the fact that each fillet or double fillet is fed completely automatically in an appropriate attitude and position for press separatin~ or straining to a fish straSining machine. Thereby, the obtaining of fish pulp of highest quality is made possible with best yield and, moreover, the prerequisite is given for the economical processing even of mass fish of small dimen-sions9 which are particularly suitable for processing in such apparatus.
According to a preferred embodiment of the invention an appropriate fish filleting machine may be equipped for the automatical gaining of fish pulp if a fish straining or press separating machine comprising the presser member and the rotata~le perforated drum is connected to the frame of the processing machine, the straining machine being disposed adjacent the outlet end of the processing machine and below a feed path of the latter along which the fillets are conveyed through the processing machine and the drum rotating at a peripheral speed which is at least equal to that at which the fillets are conveyed through the processing machine. In such an arrangement the pi.votable connection of the straining machine to the frame of the fish filleting machine enables the alternate use of such a fish filleting machine for the production of fish fillets or fish pulp.
In order to facilitate the automatical feeding of the fillets to the perforated drum,.the latter may be mounted to be rotatable about a substantially horizontal axis which extends transversely of the feed path, and the upper sur~ace of the peripheral wall of the drum may extend substantially tangenti.ally to the upper surface of a guide plate which defines a prolongation of the feed path. I'his upper surface of the guide plate may be substantially planar or arcuate.
.
~ 2 ~
~ .,,., ~......
~ ,, '" . .:.'; ; -f' ' ',,' ,~ ' ' According to yet another embodiment of the invention the presser member comprises and endless belt which extends into the immediate proximity of the upper surface ~f the guide plate and around a peripheral drum wall portion, which is disposed on the side of the drum remote from the guide plate and which subtends an angle 3f at least 120 at the axis of rotation of the drum. Thus a sufficient pressing length is achieved along the periphery oE the perforated drum. In such an embodiment the endless belt may extend over the upper surface of the guide plate and be guided by a deflecting roller whichis rotatably mounted above the guide plate. This allows the fillets to be safely conveyed into the pressing or straining zone by conveying them from below and above. In order to additionally facilitate the entering of the fillets into the straining zone it is advantageous to provide for a portion of the endless belt facing the peripheraI wall of the drum and extending .~ ,....................................................................... .
between the guide plate and the peripheral drum wall, said portion being guided by a pair of guide elements which support ~ :.
~; the respective edge portions of the belt, the arrangement being - 20 such that the belt portion is constrained by the guide elements to describe an upwardly arched arc.
BRIEF DESCRIPTION OF THE DRAWING
An embodiment of the present invention will now be , ~- more particularly described by way of example with reference ,- ' to the single Figure of the accompanying drawing, which shows ' ~ a perspective view of apparatus embodying the invention . -t~ including part of a filleting machine and a straining machine.
" ., .~
Referring now to the accompanying drawing, the ap-,- ~ paratus illustrated schematically kherein includes part of a fish filleting machine indiaated generally by the reference numeral 1 and a fish straining or press separating machine .: ~
- indicated generally by the reference numeral 2. The fish ...
.. .
23~5 ., filleting machine 1 is provided with a frame (not shown) which supports a number of tools, guide elements, conveying elements and drive elements some of which, in the interest of clarity of illustration, have also not been shown in the drawing.
In the drawing, a pair of belly filleting knives 11, a pair of rib knives 15 and a pair of bone knives 16 are shown disposed below a feed path 13 along which fish are fed in the direction indicated by the arrow at the left hand end of the feed path 13, which is defined by bone guides 17 and fillet guides 18~ A pair of endless belt conveyors 19, circulating in planes inclined to one another and indicated in the drawing by dash-dotted lines are arranged so that respec-tive ones of the belt conveyors are disposed on each side of and slightly above the feed path 13 for the fish. A guide plate 14 is disposed behind the~bone knives 16 at the outlet end 12 of the filleting machine 1 to define a prolongation of its -feed path. In the preferred embodiment, the guide plate 14 extends with its upper surface in a generally horizontal plane, apart from a trailing end portion of the plate which is arcuate.
~owever, the guide plate 14 may be entirelyplanar or entirely arcuate. A vertical axle 29, about which the straini~g machine
2 is mounted to be pivotable 50 as to be capable of being pivoted out of the fish feed path 13 by a pivotation through an angle o~ substantially 90 in counterclockwise sense, is supported at the end of the not illustrated frame of the fil-leting machine 1. The straining machine 2 comprises a hollow perforated drum 21, which is rotatable in a clockwise sense .. . .
around a horizontal axis 23, and a belt 27 which is circulated synchronously with the drum. The forward facing end of the drum 21, as shown in the drawing~ is open and the perforations are preferably in the form of elongate apertures extending _ :: . ' . ~ . . .
~ ' ,.,~
~L09~3~5 ,, /
in the peripheral direction of the drum. The belt 27 is urged by a driving roller 28 l:owards the circumference of the perforated drum 21 and is guided by a deflecting roller 25 so as to extend around a large part of the circumference of the perforated drum 21. The belt 27 is maintained in tension by a tension roller 26. A run-off chute is arranged below the open end of the perforated drum 21 and a pair of traingular guide elements 30 is arranged in the region of the catchment location of the belt 27 to support its edge portions. The undersides of the guide elements 30 are adapted to the outer diameter of the perforated drum 21 and the upper sides of the guide elements 30 are shaped to define respective upwardly arched arcuate surfaces.
MODE OF OPER TION
The mode of operation of the apparatus is as follows~
A beheaded fish, the abdominal cavity of which has preferably previously been cleaned, is fed belly downwards along the feed path 13 in the direction of the arrow. The flank portions of ~, - the fish are seized by the belt conveyors 19 and conveyed past the filleting tools 11, 15 and 16, which cut the fish into -'~ , a double fillet. After leaving the belly filleting knives 11, the fish is guided by the bone guides 17 until it reaches the rib knives lS and, after the cutting free of the ribs and lateral vertebral projections, the fish is guided by the fillet guides 18 until it reaches the bone knives 16. The latter operate to so ever the fillets from the back spodes that their connection remains maintained along the back of the fish. A
double fillet which is obtained in this manner is spread out with its skin side facing upwards is conveyed over the upper - 30 surface of the plate 14 towards the perforated drum 21 and is ! , ~ .
~; entrained by the drum in the wedge-shap$d catchment zone which , is disposed below the belt 27. Thus, the double fillet is 1~923~S
also seized and entrained by the part of the belt 27 which projects over the upper surface of the plate 14. During passage of the fish fillets between the periphery of the - ~ perforated drum 21 and the belt 27, the valuable fish flesh ; is pressed - while maintaining the original length of its flesh fibres-into the int~rior 24 of the perforated drum 21, from which it can be withdrawn by means of, for example, a worm conveyor (not shown).
~ The generally triangular guide elements 30, which - 10 are disposed at the catchment zone and between the side edge portions of the belt 27 and the peripheral surface of the perforated drum 21, serve to enlarge the angle included between the belt 27 and the peripheral surface of the perforated drum 21 by guiding the belt 27 along an upwardly arched arcuate path. In this way, the passage of thicker or stiffer double fillets of fish into the catchment zone is facilitated.
.
-`! :
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' '
around a horizontal axis 23, and a belt 27 which is circulated synchronously with the drum. The forward facing end of the drum 21, as shown in the drawing~ is open and the perforations are preferably in the form of elongate apertures extending _ :: . ' . ~ . . .
~ ' ,.,~
~L09~3~5 ,, /
in the peripheral direction of the drum. The belt 27 is urged by a driving roller 28 l:owards the circumference of the perforated drum 21 and is guided by a deflecting roller 25 so as to extend around a large part of the circumference of the perforated drum 21. The belt 27 is maintained in tension by a tension roller 26. A run-off chute is arranged below the open end of the perforated drum 21 and a pair of traingular guide elements 30 is arranged in the region of the catchment location of the belt 27 to support its edge portions. The undersides of the guide elements 30 are adapted to the outer diameter of the perforated drum 21 and the upper sides of the guide elements 30 are shaped to define respective upwardly arched arcuate surfaces.
MODE OF OPER TION
The mode of operation of the apparatus is as follows~
A beheaded fish, the abdominal cavity of which has preferably previously been cleaned, is fed belly downwards along the feed path 13 in the direction of the arrow. The flank portions of ~, - the fish are seized by the belt conveyors 19 and conveyed past the filleting tools 11, 15 and 16, which cut the fish into -'~ , a double fillet. After leaving the belly filleting knives 11, the fish is guided by the bone guides 17 until it reaches the rib knives lS and, after the cutting free of the ribs and lateral vertebral projections, the fish is guided by the fillet guides 18 until it reaches the bone knives 16. The latter operate to so ever the fillets from the back spodes that their connection remains maintained along the back of the fish. A
double fillet which is obtained in this manner is spread out with its skin side facing upwards is conveyed over the upper - 30 surface of the plate 14 towards the perforated drum 21 and is ! , ~ .
~; entrained by the drum in the wedge-shap$d catchment zone which , is disposed below the belt 27. Thus, the double fillet is 1~923~S
also seized and entrained by the part of the belt 27 which projects over the upper surface of the plate 14. During passage of the fish fillets between the periphery of the - ~ perforated drum 21 and the belt 27, the valuable fish flesh ; is pressed - while maintaining the original length of its flesh fibres-into the int~rior 24 of the perforated drum 21, from which it can be withdrawn by means of, for example, a worm conveyor (not shown).
~ The generally triangular guide elements 30, which - 10 are disposed at the catchment zone and between the side edge portions of the belt 27 and the peripheral surface of the perforated drum 21, serve to enlarge the angle included between the belt 27 and the peripheral surface of the perforated drum 21 by guiding the belt 27 along an upwardly arched arcuate path. In this way, the passage of thicker or stiffer double fillets of fish into the catchment zone is facilitated.
.
-`! :
, :'` ' . ` :
' '
Claims (12)
1. A process for obtaining pulp from fish comprising the steps of beheading, gutting and filleting such fish to pro-vide fillets, placing such fillets in non-overlapping relation-ship on the peripheral wall of a rotatable perforated drum so that the fillets lie against the peripheral wall of the drum, pressing the fillets against the peripheral wall of the drum to urge portions thereof through the perforations in the drum wall and into the interior of the drum, and continuously withdrawing the resulting fish pulp from the interior of the drum.
2. A process as claimed in claim 1, wherein the filleting step provides double fillets.
3. Apparatus for obtaining fish pulp, comprising a processing machine to behead, gut and fillet fish and to place the fish fillets in non-overlapping relationship on the peri-pheral wall of a rotatable perforated drum so that the fillets lie against the peripheral wall of the drum, a presser member to press the fillets against the peripheral wall of the drum and thereby urge portions thereof through the perforations in the peripheral wall and into the interior of the drum, and withdrawal means to withdraw the resulting fish pulp from the interior of the drum.
4. Apparatus as claimed in claim 3, wherein the pro-cessing machine is adapted to provide a double fillet from each of such fish.
5. Apparatus as claimed in claim 3, wherein the pres-ser member and the rotatable drum constitute respective elements of a fish straining machine which is connected to the frame of the processing machine, the straining machine being disposed adjacent the outlet end of the processing machine and below a feed path along which the fillets are conveyed through the processing machine.
6. Apparatus as claimed in claim 5, comprising drive means to rotate the drum at a peripheral speed which is at least equal to that at which the fillets are conveyed through the processing machine.
7. Apparatus as claimed in either claim 5 or claim 6, wherein the straining machine is so pivotably connected to the frame of the processing machine as to be capable of being pivotably displaced to a position in which it does not impede the passage of the fish fillets along the feed path.
8. Apparatus as claimed in claim 5, wherein the drum is mounted to be rotatable about a substantially horizontal axis which extends transversely of the feed path, and the upper surface of the peripheral wall of the drum extends substantially tangentially to the upper surface of a guide plate which defines a prolongation of the feed path.
9. Apparatus as claimed in claim 8, wherein the upper surface of the guide plate is substantially planar.
10. Apparatus as claimed in claim 8, wherein the presser member comprises an endless belt which extends into the immediate proximity of the upper surface of the guide plate and around a peripheral drum wall portion, which is disposed on the side of the drum remote from the guide plate and which subtends an angle of at least 120° at the axis of rotation of the drum.
11. Apparatus as claimed in claim 10, wherein the endless belt extends over the upper surface of the guide plate and is guided by a deflecting roller which is rotatbly mounted above the guide plate.
12. Apparatus as claimed in claim 10, wherein a portion of the endless belt facing the peripheral wall of the drum and extending between the guide plate and the peripheral drum wall is guided by a pair of guide elements which support the respective edge portions of the belt, the arrangement being such that the belt portion is constrained by the guide elements to describe an upwardly arched arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA277,154A CA1092305A (en) | 1977-04-27 | 1977-04-27 | Process and apparatus for obtaining fish pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA277,154A CA1092305A (en) | 1977-04-27 | 1977-04-27 | Process and apparatus for obtaining fish pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1092305A true CA1092305A (en) | 1980-12-30 |
Family
ID=4108521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA277,154A Expired CA1092305A (en) | 1977-04-27 | 1977-04-27 | Process and apparatus for obtaining fish pulp |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1092305A (en) |
-
1977
- 1977-04-27 CA CA277,154A patent/CA1092305A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |