CA1097010A - Skinning machine for double fillets - Google Patents
Skinning machine for double filletsInfo
- Publication number
- CA1097010A CA1097010A CA324,831A CA324831A CA1097010A CA 1097010 A CA1097010 A CA 1097010A CA 324831 A CA324831 A CA 324831A CA 1097010 A CA1097010 A CA 1097010A
- Authority
- CA
- Canada
- Prior art keywords
- skinning
- conveying surface
- knives
- conveying
- guide bars
- 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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- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
ABSTRACT OF DISCLOSURE
A skinning device for double fillets of fish is described, in which a skinning tool is arranged at a small distance from an endless conveyor belt receiving the double fillets lying on their skin sides, the skinning tool comprising a pair of symmetrically arranged skinning knives provided with outwardly facing cutting edges extending parallelly to the surface of the conveying belt from starting points, the skinning knives including between them a passage for the fin holders of the back fins. Two guide bars are provided extending from said starting points delimiting the passage in a direction opposite to the conveying direction and leaving between them a guide gap. The edges of the guide bars facing the conveying I.
belt extend in parallelism to the latter and are shaped as cutting edges. Above the skinning knives and on both sides of the guide bars there are provided presser belts for conveyingly engaging the flesh parts of the fillets and driven to move synchronously with the conveyor belt.
II.
A skinning device for double fillets of fish is described, in which a skinning tool is arranged at a small distance from an endless conveyor belt receiving the double fillets lying on their skin sides, the skinning tool comprising a pair of symmetrically arranged skinning knives provided with outwardly facing cutting edges extending parallelly to the surface of the conveying belt from starting points, the skinning knives including between them a passage for the fin holders of the back fins. Two guide bars are provided extending from said starting points delimiting the passage in a direction opposite to the conveying direction and leaving between them a guide gap. The edges of the guide bars facing the conveying I.
belt extend in parallelism to the latter and are shaped as cutting edges. Above the skinning knives and on both sides of the guide bars there are provided presser belts for conveyingly engaging the flesh parts of the fillets and driven to move synchronously with the conveyor belt.
II.
Description
~o9~o~o C~G~OU~ OF T~ vE~rIoN
l. Field of Invention The invention relates ~o a skinning clevice ~or double fillets o- fisn co~prisin~ a conveying surface for the skin side of the double fillets and a skinning tool arranged at a small distance from the COnVe~in~J
surface.
l. Field of Invention The invention relates ~o a skinning clevice ~or double fillets o- fisn co~prisin~ a conveying surface for the skin side of the double fillets and a skinning tool arranged at a small distance from the COnVe~in~J
surface.
2. Description of Prior Art It is a well known problem in the art that the skinnin~ of double fillets in known skinning machines and devices for fish fillets raise various difficulties which render such devices and machines little suitable for double fillet skinning. First of all, there is the danger of the skin tearing on the sides of the strip connecting the two fillets and containing the back fins and their fin holders, so that skin remnants or patches will remain on the fillets. On the other hand, the destruction of the back fins, their fin holders, or the fat strips adjacent the fins affected bv the co-action of the conveying surface and the skinning tool may cause a contamination of the skinned fillets which in most cases can either not be removed at all or at least only be eliminated partiall~. To overcome these difficulties the skinning of double fillets of herrings which have been pre-treated by herbes, picklPd or salted ~- as well as o~ mackerels is normall~ performed manually.
: 1
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3. Object of the Invention It is a main object of the present invention to obviate ,, ~
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iO970~0 these uif iculti~s anl to i,~lprove the kno~n s~innin~ d~.vice~
Eor fish -~illets such ~hat thQy ~Qnabl~ the sl~innin~ oE
double fillets of shoal :~ish in fresh or in pre-tr-~tecl condition.
5 SUL~RY OF T~l~ IM~E~TIO.~ :
According to the invention this object is achi2ved in a skinninc3 device com~rising a c~nvevinq surace or tne skin sides o-f the ~ouble filets an~ a s];inning -tool arranged at a small distance froin said conveving surface by the improvement that th~ skinning tool comprises two skinning knives which include between them a passac3e -for the back fins and the fin holders of th~ hack fins, this passage being arranyed centrically witn respect to the conveying surface.
One of the main advantages achieved bv the invention is that in skinning double fillets the skin may be separated from the fillets without beinc3 damaged, w~nile, at the same time, avoiding any damage of. the back ins, of their fin holders, and/or of the fat strips present on both sides of the back fins. Thus, it is e.g. rendered possible to produce ~kinned herb Eillets o high quality.
Acaording to a preferred embodiment of the invention the conveying surEace is plane in region of the skinning ~ ~ knives and the skinning knives may comprise cutting edges 1l ; 25 extending outwardly from their starting points delimiting the passage, these cutting edges including between them . an angle opening in the conveying direction oE the ,. . .
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conveying surface. This arranyement e~les a skinning of double fillets without damaging the s~in, since the skinninq proc~dure mav be perforl~ed starting from the head end on both sides of the strip containin~ the back Eins, 'he skin being held tight transversely of the conveying direction during the skinni~y process.
Preferably there mav be provided guide rails at a small distance from the conveying surface, these guide rails ext~nding from the staxting points of the skinniny knives in the conveying diraction and parallellv to the latter.
~i Such guide rails serve to improve the safe-ty oE
the skinning process; by guiding the strip containing the back fins and assisting to avoid unsymmetrical stressing of the skin during the skinning process.
According to an expedient embodiment of the invention a pair of guide bars may be provided at a small distance from the conveying surface and extending from the starting points of the skinning knives in the opposite direction of .:
the conveying direction and parallelIy to the latter. These ~gu-ide bars, too, serve to increase the safety of the skinning process by holding the double fillet in a position suitable for skinning well before reaching the points of the sklnning knives or at least b~ bringing the do~ble fi~llets lnto such position~
25 ~ Preferably, the guide bars comprise cutting edqes faclng the conveying surface. It i5 thus rendered possible ; ;to increase the safety of the skinning process of double 3` -. ' . ~ ' .'- ''. ' ., - ' ~097(~0 fillets considerably hy 3?reparing -the separation o~ the fillets from the skin along the back for the pene-tration c,f the points or tips of the skinning knives.
Advantageously the guide bars may include be-tween t:hem a slot, and in the region in front of the points of the skinning knives may b~ provided with scraping tools facing away from that slot. Such an arrangement enables the production of skinned fillets of an annropriate quality in certain cases in so far as a separation o the back sides of the fillets from the fat strips remaining on the skin may be performed before the skinning takes place.
In order to enable an additional support or conveyance of the double fillet before, during, or after the completion of the skinning process there may be arranged one endless presser belt each moving synchro-nously with said conveying surface on either side of the passage or the slot.
If it is an aim to feed douhle fillets to a a skinning device directly and process them therein in a very practical manner by maintaining their normal position when leaving a filleting machine, the conveying surface may be arranged above the skinning knlves, while the presser belts can be provided underneath the skinning knives.
To this end, the conveying surface may be formed by , the lower run of an endless conveyor belt turning downwardly ,1 ~ _ 4 _ 97(1~0 by means of a deElection roller. Thus, a conveying surface is achieved which guarantees a safe conve~ing even of double fillets having a very thin and delicate skin throughout the whole skinning procedure.
The presser belts and their deflection rollers may reach beyond the deflection rollers of the conveyor belts in a direction opposite to the conveying direction in order to enable a feeding of the double fillets to the conveying surface by means of the presser belts.
Preferably, protruding ends of the guide bars may extend beyond the deflection rollers of the presser belts in a direction opposite to the conveying direction and comprise downwardly directed saddle faces which are inclined with respect to each other. This facilitates a manual or automatical feeding of pre-treated double i fillets, e.g. of double fillets having been herb-treated.
` BRIEF DESCRIPTION OF THE DRAWINGS
' Embodiments of the present invention will now he more particularly described by way of axample and with reference to the accompanying drawings, which show in Fig. 1 an axonometric illustration of a skinnlng devlce according to the invention, '~f Fig. 2 a cross-section according to section line II-II
; o~ Fig. 1 positioned vertically through the conveying surface in the region of the guide bars in front of the presser belts, : ~ :
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~:~97(~10 Fig. 3 a cross-section according to section line III III
of Fig. 1 in the region o-E the ~resse~ belts, Fig. 4 a cross section according to section line IV-IV
of Fig. 1 in the region o~ the skinning knives, and Fig. 5 a skinning device according to the invention having skinning knives belo~7 the conveying surface and in a position which is inverted by 1~0 with respect to the embodiment shown in Fig. 1.
DESCRIPTION OF THE PREFERRED EMBoDIrlENTs In a frame (not shown) there are arranged a deflection roller 13 and a driving roller 14 of an endless conveyor ; belt, which is driven to turn continuously by appropriate drive means (not shown) and which has an upper run the upwardly facing side of which forms a conveying surface 11.
This conveying surface 11 is moved in an essentially horizontal conveying direction 12. At least the outer face of the conveying surface 11 consists of caoutchouc, synthetic rubber or an elastomeric material and is provided with burls or any other suitable roughening.
; 20 A left skinning knife 21 and a right skinning knife 25 are arranged at a distance of tenths of millimetres above the conveying surface 11 and in such a manner that between th~m a passage lying exactly in the conveying direction 12 is formed essentially in the middle of the conveying surface 11. The two skinning knives 21 and 25 are arranged in a symmetrical manner and have the shape of trian~les. Each of the :
~:~97(~0 skinnin~ knives 21 and 25 is pxoviclecl with a starting point or tip 22 resp. 26 lying on the side of the passage 24 and beinq directed opposite to, i.e. upstream t:he conveving direction 12. Also, each of the skinning knives has a cutting edge 23 resp. 27 extending outwardlY
from the point 22 resp. 26 and forming the hvpotenuse of the triangle. The two cutting edges 23 and 27 include between them an acute angle 28. Along their edges on the sides of the passage 24 the skinning knives 21 and 25 carry a small rail extending upwardly in a vertical direction towards the conveying surface 11 and forming a guide rail 31 resp. 32. These two guide rails 31 and 32 include between them a slot 33 and each comprise a protrusion extending be~ond the conveying surface 11 in an opposite direction to the conveying direction 12 and starting from the point 22 resp. 26, this protrusion being shaped as a guide bar 34 resp. 37. The guide bars 34 and 37 each have a feeding or intake end (not specifically ~ designated) with an intake edge approaching the conveying ; 20 surface 11 at an acute anglel while downstream this intake end a cutting edge 35 resp. 38 is arranged closely above the conveying surface 11. From each of the cutting edges 35 resp. 38 there is extending an outwardly facing scraping kni~e 36 resp. 39 upstream the point 22 resp. 26.
Above the skinning knives 21 and 25 there is arranged one presser belt 4 resp. S each extending from the ends ~- of the guide bars 34 and 37 to the ends of the guide rails :`~
' .
~C~7(1110 31 and 32 arranged in the conveying direction 12, the lower runs of the presser belts 4 and 5 moving synchronously with the conveying surface 11.
The function of the skinning device is as follows:
A double fillet is placed with its skin side on the conveying surface 11 in such a manner that its fin strip formed by the back fins and their fin holders may enter between the two guide bars 34 and 37. These will then guide the fin strip as sh~wn in Fig. 2. Upon further advance of the double fillet the scraping knives 36 and 39 according to their respective shape penetrate either between the fin strip and the back of the two fillets or between the respective at strip of each fillet and the back to the skin and thus separate the fillets from the skin in the region of the back. This step is partially shown with a double fillet in Fig. 3. The skin of the ; double fillets is pressed firmly against the conveying surface 11 by the cutting edges 35 and 38 resp. the scraping ; 20 knives 36 and 39 so that the double fillet will be transported slip-free by the conveying surface 11 and may thus also be conveyed in the region of the skinning knives 21 and 25. While the skin of the double ~illet is tightly held in a position against the conveylng surfaae 11 the skinning knives 21 and 25 peel off the fillets from the skin while the latter is also being tightly stretched .,..... ,. ~ :
in an ou~ward direction~ The presser belts 4 and 5 provide for ~`: .` , ; .:
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.
1~97~10 supporting the Eillets during the skinning process and also for the further conveyance after the separation of the fillets frorn the skin. To avoid sli~ping o the skin of the do~hle fillets on the conveying surface 11 the upper run of the conveyor belt for~ing the conveving surface 11 is supported by a rigid support (not shown), which is arranged at least in the region of the skinning knives.
In the embodiment of a skinning device as shown in Fig. 5 the guide rails 31 and 32 as well as the guide bars 34 and 37 do not extend upwardly but downwardly and away from the conveying surface 11 lying closely above the skinning knives 2i and 25 and beins formed by the lower run of the conveyor belt. The presser belts 4 and 5 are arranged beneath the skinning knives 21 and 25 and are deflected about one deflecting roller 42 resp. 52 each at the ends of the skinning knives and about one deflection roller 41 resp. 51 at their feed-in ends. The presser belts 4 and 5 are longer than the conveyor belt 15 forming the conveying surface 11 and with their deflection rollers 41 and 51 ` 20 extend beyond the deflection roller 13 of the conveyor belt 15. The guide bars 34 and 37 facing downwardly protrude beyond the de~lection rollers 41 and 51 50 that they enable a placing of the double fillets on their protruding ends 61 and 62, which form a roof-like saddle. A double fillet is placed on the protruding ends 61 and 62 with its flesh side and pushed forwardly into the region of the pres~er ;` belts 4 and 5 until it is seized by these and pushed towards the conveying surface 11 riding on the upper edges .
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, ' ' ' :
1'.)97(1110 of the guide bars 34 and 37. In this emhbodiment, too~ the fin strip is guided within the slot 33 present between the t:wo guicle bars 34 and 37.
The pressing oE the skin onto the conveying surface 11, the separation of the :Eat strips resp. the backs of the fillets from the skin, and finally the separation o the two fillets from the skin bv means of the skinning knives 21 and 25 are performed in the same manner as in the skinning machine shown in Fig. 1 and in correspondence with the respective description.
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.. .
~':: , . . . .. ..
;. . ,. - :
,. . . - . , , ,: ~ ' .,, . : : ' ~, , :',' . .. ' , ~ ' ' , . .. . : .. .
iO970~0 these uif iculti~s anl to i,~lprove the kno~n s~innin~ d~.vice~
Eor fish -~illets such ~hat thQy ~Qnabl~ the sl~innin~ oE
double fillets of shoal :~ish in fresh or in pre-tr-~tecl condition.
5 SUL~RY OF T~l~ IM~E~TIO.~ :
According to the invention this object is achi2ved in a skinninc3 device com~rising a c~nvevinq surace or tne skin sides o-f the ~ouble filets an~ a s];inning -tool arranged at a small distance froin said conveving surface by the improvement that th~ skinning tool comprises two skinning knives which include between them a passac3e -for the back fins and the fin holders of th~ hack fins, this passage being arranyed centrically witn respect to the conveying surface.
One of the main advantages achieved bv the invention is that in skinning double fillets the skin may be separated from the fillets without beinc3 damaged, w~nile, at the same time, avoiding any damage of. the back ins, of their fin holders, and/or of the fat strips present on both sides of the back fins. Thus, it is e.g. rendered possible to produce ~kinned herb Eillets o high quality.
Acaording to a preferred embodiment of the invention the conveying surEace is plane in region of the skinning ~ ~ knives and the skinning knives may comprise cutting edges 1l ; 25 extending outwardly from their starting points delimiting the passage, these cutting edges including between them . an angle opening in the conveying direction oE the ,. . .
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conveying surface. This arranyement e~les a skinning of double fillets without damaging the s~in, since the skinninq proc~dure mav be perforl~ed starting from the head end on both sides of the strip containin~ the back Eins, 'he skin being held tight transversely of the conveying direction during the skinni~y process.
Preferably there mav be provided guide rails at a small distance from the conveying surface, these guide rails ext~nding from the staxting points of the skinniny knives in the conveying diraction and parallellv to the latter.
~i Such guide rails serve to improve the safe-ty oE
the skinning process; by guiding the strip containing the back fins and assisting to avoid unsymmetrical stressing of the skin during the skinning process.
According to an expedient embodiment of the invention a pair of guide bars may be provided at a small distance from the conveying surface and extending from the starting points of the skinning knives in the opposite direction of .:
the conveying direction and parallelIy to the latter. These ~gu-ide bars, too, serve to increase the safety of the skinning process by holding the double fillet in a position suitable for skinning well before reaching the points of the sklnning knives or at least b~ bringing the do~ble fi~llets lnto such position~
25 ~ Preferably, the guide bars comprise cutting edqes faclng the conveying surface. It i5 thus rendered possible ; ;to increase the safety of the skinning process of double 3` -. ' . ~ ' .'- ''. ' ., - ' ~097(~0 fillets considerably hy 3?reparing -the separation o~ the fillets from the skin along the back for the pene-tration c,f the points or tips of the skinning knives.
Advantageously the guide bars may include be-tween t:hem a slot, and in the region in front of the points of the skinning knives may b~ provided with scraping tools facing away from that slot. Such an arrangement enables the production of skinned fillets of an annropriate quality in certain cases in so far as a separation o the back sides of the fillets from the fat strips remaining on the skin may be performed before the skinning takes place.
In order to enable an additional support or conveyance of the double fillet before, during, or after the completion of the skinning process there may be arranged one endless presser belt each moving synchro-nously with said conveying surface on either side of the passage or the slot.
If it is an aim to feed douhle fillets to a a skinning device directly and process them therein in a very practical manner by maintaining their normal position when leaving a filleting machine, the conveying surface may be arranged above the skinning knlves, while the presser belts can be provided underneath the skinning knives.
To this end, the conveying surface may be formed by , the lower run of an endless conveyor belt turning downwardly ,1 ~ _ 4 _ 97(1~0 by means of a deElection roller. Thus, a conveying surface is achieved which guarantees a safe conve~ing even of double fillets having a very thin and delicate skin throughout the whole skinning procedure.
The presser belts and their deflection rollers may reach beyond the deflection rollers of the conveyor belts in a direction opposite to the conveying direction in order to enable a feeding of the double fillets to the conveying surface by means of the presser belts.
Preferably, protruding ends of the guide bars may extend beyond the deflection rollers of the presser belts in a direction opposite to the conveying direction and comprise downwardly directed saddle faces which are inclined with respect to each other. This facilitates a manual or automatical feeding of pre-treated double i fillets, e.g. of double fillets having been herb-treated.
` BRIEF DESCRIPTION OF THE DRAWINGS
' Embodiments of the present invention will now he more particularly described by way of axample and with reference to the accompanying drawings, which show in Fig. 1 an axonometric illustration of a skinnlng devlce according to the invention, '~f Fig. 2 a cross-section according to section line II-II
; o~ Fig. 1 positioned vertically through the conveying surface in the region of the guide bars in front of the presser belts, : ~ :
. ' .
,, , .. .- ,- .
, .. .. : . . - . :
~' ''' ~ . .,' ..
,.
~:~97(~10 Fig. 3 a cross-section according to section line III III
of Fig. 1 in the region o-E the ~resse~ belts, Fig. 4 a cross section according to section line IV-IV
of Fig. 1 in the region o~ the skinning knives, and Fig. 5 a skinning device according to the invention having skinning knives belo~7 the conveying surface and in a position which is inverted by 1~0 with respect to the embodiment shown in Fig. 1.
DESCRIPTION OF THE PREFERRED EMBoDIrlENTs In a frame (not shown) there are arranged a deflection roller 13 and a driving roller 14 of an endless conveyor ; belt, which is driven to turn continuously by appropriate drive means (not shown) and which has an upper run the upwardly facing side of which forms a conveying surface 11.
This conveying surface 11 is moved in an essentially horizontal conveying direction 12. At least the outer face of the conveying surface 11 consists of caoutchouc, synthetic rubber or an elastomeric material and is provided with burls or any other suitable roughening.
; 20 A left skinning knife 21 and a right skinning knife 25 are arranged at a distance of tenths of millimetres above the conveying surface 11 and in such a manner that between th~m a passage lying exactly in the conveying direction 12 is formed essentially in the middle of the conveying surface 11. The two skinning knives 21 and 25 are arranged in a symmetrical manner and have the shape of trian~les. Each of the :
~:~97(~0 skinnin~ knives 21 and 25 is pxoviclecl with a starting point or tip 22 resp. 26 lying on the side of the passage 24 and beinq directed opposite to, i.e. upstream t:he conveving direction 12. Also, each of the skinning knives has a cutting edge 23 resp. 27 extending outwardlY
from the point 22 resp. 26 and forming the hvpotenuse of the triangle. The two cutting edges 23 and 27 include between them an acute angle 28. Along their edges on the sides of the passage 24 the skinning knives 21 and 25 carry a small rail extending upwardly in a vertical direction towards the conveying surface 11 and forming a guide rail 31 resp. 32. These two guide rails 31 and 32 include between them a slot 33 and each comprise a protrusion extending be~ond the conveying surface 11 in an opposite direction to the conveying direction 12 and starting from the point 22 resp. 26, this protrusion being shaped as a guide bar 34 resp. 37. The guide bars 34 and 37 each have a feeding or intake end (not specifically ~ designated) with an intake edge approaching the conveying ; 20 surface 11 at an acute anglel while downstream this intake end a cutting edge 35 resp. 38 is arranged closely above the conveying surface 11. From each of the cutting edges 35 resp. 38 there is extending an outwardly facing scraping kni~e 36 resp. 39 upstream the point 22 resp. 26.
Above the skinning knives 21 and 25 there is arranged one presser belt 4 resp. S each extending from the ends ~- of the guide bars 34 and 37 to the ends of the guide rails :`~
' .
~C~7(1110 31 and 32 arranged in the conveying direction 12, the lower runs of the presser belts 4 and 5 moving synchronously with the conveying surface 11.
The function of the skinning device is as follows:
A double fillet is placed with its skin side on the conveying surface 11 in such a manner that its fin strip formed by the back fins and their fin holders may enter between the two guide bars 34 and 37. These will then guide the fin strip as sh~wn in Fig. 2. Upon further advance of the double fillet the scraping knives 36 and 39 according to their respective shape penetrate either between the fin strip and the back of the two fillets or between the respective at strip of each fillet and the back to the skin and thus separate the fillets from the skin in the region of the back. This step is partially shown with a double fillet in Fig. 3. The skin of the ; double fillets is pressed firmly against the conveying surface 11 by the cutting edges 35 and 38 resp. the scraping ; 20 knives 36 and 39 so that the double fillet will be transported slip-free by the conveying surface 11 and may thus also be conveyed in the region of the skinning knives 21 and 25. While the skin of the double ~illet is tightly held in a position against the conveylng surfaae 11 the skinning knives 21 and 25 peel off the fillets from the skin while the latter is also being tightly stretched .,..... ,. ~ :
in an ou~ward direction~ The presser belts 4 and 5 provide for ~`: .` , ; .:
., ; , ~ .
,,, - .
.
1~97~10 supporting the Eillets during the skinning process and also for the further conveyance after the separation of the fillets frorn the skin. To avoid sli~ping o the skin of the do~hle fillets on the conveying surface 11 the upper run of the conveyor belt for~ing the conveving surface 11 is supported by a rigid support (not shown), which is arranged at least in the region of the skinning knives.
In the embodiment of a skinning device as shown in Fig. 5 the guide rails 31 and 32 as well as the guide bars 34 and 37 do not extend upwardly but downwardly and away from the conveying surface 11 lying closely above the skinning knives 2i and 25 and beins formed by the lower run of the conveyor belt. The presser belts 4 and 5 are arranged beneath the skinning knives 21 and 25 and are deflected about one deflecting roller 42 resp. 52 each at the ends of the skinning knives and about one deflection roller 41 resp. 51 at their feed-in ends. The presser belts 4 and 5 are longer than the conveyor belt 15 forming the conveying surface 11 and with their deflection rollers 41 and 51 ` 20 extend beyond the deflection roller 13 of the conveyor belt 15. The guide bars 34 and 37 facing downwardly protrude beyond the de~lection rollers 41 and 51 50 that they enable a placing of the double fillets on their protruding ends 61 and 62, which form a roof-like saddle. A double fillet is placed on the protruding ends 61 and 62 with its flesh side and pushed forwardly into the region of the pres~er ;` belts 4 and 5 until it is seized by these and pushed towards the conveying surface 11 riding on the upper edges .
'~
-- : . - . - , -:, . : . . , . : .
, ' ' ' :
1'.)97(1110 of the guide bars 34 and 37. In this emhbodiment, too~ the fin strip is guided within the slot 33 present between the t:wo guicle bars 34 and 37.
The pressing oE the skin onto the conveying surface 11, the separation of the :Eat strips resp. the backs of the fillets from the skin, and finally the separation o the two fillets from the skin bv means of the skinning knives 21 and 25 are performed in the same manner as in the skinning machine shown in Fig. 1 and in correspondence with the respective description.
~ .
Claims (16)
1. A skinning device for double fillets of fish comprising a conveying surface for the skin sides of the double fillets and a skinning tool arranged at a small distance from said conveying surface, c h a r a c t e -r i z e d in that the skinning tool comprises two skinning knives which include between them a passage for the back fins and the fin holders of the back fins, said passage being arranged centrically with respect to said conveying surface.
2. A skinning device according to claim 1 in which the conveying surface is plane in the region of the skinning knives, and in which the skinning knives comprise cutting edges extending outwardly from their starting points delimiting the passage, said cutting edges including between them an angle opening in the conveying direction of the conveying surface.
3. A skinning device according to claim 2 in which guide rails are provided at a small distance from said conveying surface, the guide rails extending from said points of the skinning knives in the conveying direction and parallelly to the latter.
4. A skinning device according to claim 3 in which a pair of guide bars is provided at a small distance from said conveying surface, the guide bars extending from said points of the skinning knives in the opposite direction of the conveying direction and parallelly to the latter.
5. A skinning device according to claim 4 in which the guide bars comprise cutting edges facing said conveying surface.
6. A skinning device according to claim 4 in which the guide bars include between them a slot and are provided with scraping tools directed away from said slot in the region in front of said points of the skinning knives.
7. A skinning device according to claim 1 in which on either side of said passage there is arranged one endless presser belt each turning synchronously with said conveying surface.
8. A skinning device according to claim 6 in which on either side of said slot there is arranged one endless presser belt each turning synchronously with said conveying surface.
9. A skinning device according to claim 7 in which said conveying surface is arranged above the skinning knives, while said presser belts are provided underneath the skinning knives.
10. A skinning device according to claim 9 in which said conveying surface is formed by the lower run of an endless conveyor belt turning downwardly by means of a deflection roller.
11. A skinning device according to claim 10 in which the presser belts and their deflection rollers reach beyond the deflection roller of said conveyor belt in a direction opposite to the conveying direction.
12. A skinning device according to claim 11 in which the protruding ends of said guide bars extend beyond the de-flection rollers of the presser belts in a direction opposite to the conveying direction and comprise downwardly directed saddle faces which are inclined with respect to each other.
13. A skinning device according to claim 8 in which said conveying surface is arranged above the skinning knives, while said presser belts are provided underneath the skinning knives.
14. A skinning device according to claim 13 in which said conveying surface is formed by the lower run of an endless conveyor belt turning downwardly by means of a deflec-tion roller.
15. A skinning device according to claim 14 in which the presser belts and their deflection rollers reach beyond the deflection roller of said conveyor belt in a direc-tion opposite to the conveying direction.
16. A skinning device according to claim 15 in which the protruding ends of said guide bars extend beyond the deflection rollers of the presser belts in a direction opposite to the conveying direction and comprise downwardly directed saddle faces which are inclined with respect to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA324,831A CA1097010A (en) | 1979-04-03 | 1979-04-03 | Skinning machine for double fillets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA324,831A CA1097010A (en) | 1979-04-03 | 1979-04-03 | Skinning machine for double fillets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1097010A true CA1097010A (en) | 1981-03-10 |
Family
ID=4113913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA324,831A Expired CA1097010A (en) | 1979-04-03 | 1979-04-03 | Skinning machine for double fillets |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1097010A (en) |
-
1979
- 1979-04-03 CA CA324,831A patent/CA1097010A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |