CA2537453C - Method for controlling mechanical processing headless and gutted whitefish and device for carrying out said method - Google Patents
Method for controlling mechanical processing headless and gutted whitefish and device for carrying out said method Download PDFInfo
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- CA2537453C CA2537453C CA002537453A CA2537453A CA2537453C CA 2537453 C CA2537453 C CA 2537453C CA 002537453 A CA002537453 A CA 002537453A CA 2537453 A CA2537453 A CA 2537453A CA 2537453 C CA2537453 C CA 2537453C
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- fish
- blood
- cleaning
- main bone
- residues
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- 241000442132 Lactarius lactarius Species 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 29
- 241000251468 Actinopterygii Species 0.000 claims abstract description 119
- 239000008280 blood Substances 0.000 claims abstract description 114
- 210000004369 blood Anatomy 0.000 claims abstract description 114
- 238000004140 cleaning Methods 0.000 claims abstract description 91
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 210000000683 abdominal cavity Anatomy 0.000 claims abstract description 33
- 239000012528 membrane Substances 0.000 claims abstract description 19
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 15
- 210000003734 kidney Anatomy 0.000 claims description 10
- 210000001015 abdomen Anatomy 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 238000011109 contamination Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241001609030 Brosme brosme Species 0.000 description 1
- 241000346692 Coregoninae Species 0.000 description 1
- 241000276438 Gadus morhua Species 0.000 description 1
- 241001098054 Pollachius pollachius Species 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013332 fish product Nutrition 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/14—Beheading, eviscerating, or cleaning fish
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/14—Beheading, eviscerating, or cleaning fish
- A22C25/145—Eviscerating fish
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Processing Of Meat And Fish (AREA)
Abstract
The invention relates to a device (9) for controlling mechanical processing headless and gutted whitefish (1), in particular for producing salted fish, comprising a conveyor (3) forming a track way for transporting large quantity of fish to be processed (1) and a fish boning unit (6) which is arranged on the track way for separating and extracting a main bone from abdominal cavity.
A high-pressure liquid-jet cleaning device (5) for extracting blood residues from the nape, which are removed from heads is provided along the track way in the direction of the fish moving direction upstream of the fish boning unit (6). Said residues are removed before separating the main bone by means of at least one cleaning high-pressure liquid-jet oriented towards the blood residues of the nape. The fishflesh under a membrane which covers the abdominal cavity remains protected from liquid jets.
A high-pressure liquid-jet cleaning device (5) for extracting blood residues from the nape, which are removed from heads is provided along the track way in the direction of the fish moving direction upstream of the fish boning unit (6). Said residues are removed before separating the main bone by means of at least one cleaning high-pressure liquid-jet oriented towards the blood residues of the nape. The fishflesh under a membrane which covers the abdominal cavity remains protected from liquid jets.
Description
METHOD FOR CONTROLLING MECHANICAL PROCESSING
HEADLESS AND GUTTED WHITEFISH AND DEVICE
FOR CARRYING OUT SAID METHOD
The invention relates to a process for controlled machine processing of headless and gutted white fish, in particular for producing salt fish, wherein the inain bone is separated out in the region of the abdominal cavity. The invention also relates to a device suitable for carrying out the process. Cod, pollack, cusk and ling may be mentioned as examples of white fish to be processed.
When separating out the main bone in the region of the abdoniinal cavity, some of the neck blood and some of the blood sac remains at the tail-side end of the abdominal cavity in the product. These blood residues are traditionally removed manually, after the white fish product has been taken from the fish-processing machine. The required working steps are expensive in terms of time and personnel. Conventional manual brush cleaning must proceed relatively intensively, namely deep-acting, over a large surface area and also for a long time on open flesh. There is thus the danger of contamination by bacteria being distributed over a wide surface of the flesh.
The aims of the invention are to simplify the said processing of white fish with respect to the removal of blood residues. Cleaning should take place largely by machine and in a manner which protects the product and should eliminate the danger of contamination existing in traditional manual brush cleaning. A device suitable for carrying out the process should be siinple to construct and be able to be operated for white fish which are very different in length and weight at optimum throughput rate.
According to the present invention, there is provided a process for controlled machine processing of headless and gutted white fish having a body with a main bone, wherein the main bone is separated out in a region of an abdominal cavity of the fish, characterised in that neck blood residues exposed on a head side of cut lateral blood kidneys of the body of the fish to be processed and la provided with the main bone are removed using at least one cleaning high-pressure liquid jet aligned with the neck blood residues, such that flesh of the fish remains protected from the high-pressure liquid jet by a membrane of the fish, spanning the main bone on an abdomen side of the fish, and in that the main bone lying in the region of the abdominal cavity is then removed and hence the fish membrane is opened, as a result of which neck blood residues of the lateral blood kidneys cut at the head of the fish and lying on a tail side of the fish become free.
Preferably, the aims are achieved in the process mentioned in the introduction in that neck blood residues exposed on the head-side, with which the fish to be processed is tainted, are removed before separating out the main bone using at least one cleaning high-pressure liquid jet aligned with the neck blood residues.
In a device suitable for carrying out the process, which comprises a conveying device determining the conveying path for conveying the fish to be processed in plural and a filleting device arranged on the conveying path for separating out the main bone in the region of the abdominal cavity, according to the invention a high-pressure liquid jet cleaning device for removing head-side neck blood residues is arranged along the conveying path in the direction of fish travel upstream of the filleting device. One important measure according to the invention consists in at least removing a large part of neck blood residues by means of at least one high-pressure liquid jet automatically in a fish machine and largely in a manner which protects the product. This is possible in that neck blood exposed in depressions and occurring on the fish membrane is removed using liquid blasting under high pressure, advantageously and expediently using water, wherein the flesh remains protected by the fish membrane over the abdominal cavity. The liquid high-pressure cleaning of the invention takes place in a relatively short time, locally concentrated and limited. Consequently, due to the measure that high-pressure liquid jet cleaning is carried out before separating out the main bone lying in the abdominal cavity region, on the one hand exposed blood residues are removed virtually without residue using liquid means, which is applied intensively at a local defined site, and on the other hand the fish flesh remains uninjured in spite of this intensive machine cleaning. Due to the removal according to the invention of neck blood residues exposed on the head side, a considerable saving of personnel and costs is achieved by avoiding expensive brush cleaning to be carried out traditionally by hand. The high-pressure liquid jet cleaning device of the invention can be operated not only using high speed, but it is also constructed simply and in space-saving manner. On the whole, considerable advantages are thus achieved for processing headless and gutted white fish, the main bone of which can be removed only in the abdominal cavity region.
Advantageously, first of all the fish to be processed may be sliced in the tail region laterally of the main bone, before the exposed neck blood residues are removed directly thereafter by means of high-pressure liquid jet cleaning.
A very particularly advantageous measure of the invention consists in that after separating out the main bone, neck blood residues lying on the tail side are removed using means which protect the flesh. It is post-cleaning, since according to the invention the greatest part of neck blood residues has already been removed by the step of high-pressure liquid jet cleaning. It has been found that after separating out the main bone lying in the region of the abdominal cavity, that is after opening the fish membrane, only a relatively small part of the neck blood, namely about 20 %
and less, remains on the then open fish flesh. Such residues may advantageously be detached using brush means which particularly protect the flesh, the intensity of which is largely reduced.
A supplementary further process step may advantageously consist in that after the fish to be processed has been sliced in the tail region laterally of the main bone, a blood sac residue lying at the tail-side end of the abdominal cavity is removed using at least one cleaning high-pressure liquid jet aligned with the latter. First of all the main bone may advantageously be separated out in the region of the abdominal cavity and the blood sac residue may be removed after removing neck blood.
At least one cleaning high-pressure liquid jet in the form of a high-pressure waterjet, advantageously having jet pressure at the blood site to be removed of at least 50 bar, preferably at 70 to 100 bar, may advantageously be applied at a blood site to be cleaned primarily.
In order to control the cleaning operation, the process of slicing the fish in the tail region laterally of the main bone may be used particularly advantageously, wherein a fish size value is obtained for controlled operation of at least one cleaning step.
In order to render neck blood residues to be removed accessible as much as possible to high-pressure liquid jet cleaning, the fish is advantageously conveyed in a position pressed against lateral support at least at one site upstream of jet cleaning in order to press forward neck blood residues below the fish membrane.
A further advantageous additional process measure may consist in that the region of the processed fish which is freed of blood residues is washed using rinsing liquid, which is applied at low static pressure in a manner which protects the flesh.
The cleaning device may advantageously have at least one pair of nozzles producing in each case a high-pressure liquid jet for removing head-side neck blood residues, wherein the nozzles are aligned assigned to depressions of a passing fish having the blood and lying laterally of the main bone and on the head-side end of the fish membrane.
In order to slice the fish in the tail region before cleaning, a device for slicing the tail region of the fish laterally of its main bone is arranged along the conveying path in the direction of fish travel upstream of the cleaning device provided for removing head-side neck blood residues.
According to the present invention, there is also provided a device for processing of headless and gutted white fish for carrying out the process, comprising a conveying device determining a conveying path for conveying the fish to be processed in plural and a filleting device arranged on a conveying path for separating out the main bone in the region of the abdominal cavity, characterised in that a high-pressure liquid jet cleaning device for removing neck blood residues exposed on the head side of cut lateral blood kidneys of the fish body to be processed and provided with the main bone is along the conveying path in the direction of fish travel upstream of the filleting device, so that said at least one cleaning high-pressure liquid jet blasted from the cleaning device is aligned with the exposed neck blood residues such that the fish flesh remains protected from the high-pressure liquid jet by the fish membrane spanning the main bone on the abdomen side.
Preferably, in order to also remove by machine proportionately fewer neck blood residues, which occur after filleting in the region of the fish abdominal cavity, a cleaning device for removing tail-side neck blood residues may be arranged advantageously in the direction of fish travel downstream of the filleting device.
Such a cleaning device advantageously has a detaching means having mechanical detaching elements and which can be contacted with the blood sites in a manner which protects the flesh. This means is advantageously formed by at least one drivable brush, preferably in the form of a double cone-like roller brush which can be rotated. A controllable means, which brings the brush into cleaning engagement with the blood sites to be cleaned when passing the latter, may advantageously be assigned to the brush. In a preferred embodiment according to the invention, a cover element, the position of which can be changed accordingly, which releases the brush only for cleaning, otherwise which covers it, is provided as a controllable engagement means. The brush engagement means may advantageously have a movement means, by means of which the brush can be moved in particular by adjustable compressive force against the blood sites to be cleaned and can be removed from the latter. The cleaning device provided for removing tail-side neck blood residues may also advantageously comprise a controllable means for pressing the fish against the detaching means in the region of the blood sites to be cleaned.
Preferably, in a development of the device of the invention, a high-pressure liquid jet device for removing blood sac residue lying at the tail-side end of the abdominal cavity may be arranged on the conveying path. This cleaning device is arranged expediently and advantageously along the conveying path in the direction of fish travel behind the filleting device.
Preferably in order to arrange nozzles of a cleaning device of the invention in a particularly space-saving and simple manner, in an embodiment of the invention, at least one transfer body is provided with at least one opening for the passage of cleaning liquid, which is blasted from at least one nozzle, wherein the transfer body preferably has a support surface pointing upwards for abdomen-side fish support.
Preferably, in order to treat sites already essentially freed of blood residues for removing cleaning residues, a further cleaning device in the form of a rinsing device for washing the blood sites to be cleaned may be arranged in the direction of fish travel behind at least one cleaning device primarily removing blood residues. The rinsing device preferably has at least one rinsing nozzle releasing rinsing liquid, in particular water, under low static pressure.
5a A device for slicing the tail region of the fish laterally of its main bone may advantageously be arranged along the conveying pat in the direction of fish travel upstream of the cleaning device provided for removing head-side neck blood residues, wherein a measuring device with assigned conveying path for fish length measurement, which is provided for operational control at least of a cleaning means which removes blood residues, is arranged before the cutting device.
Particularly expedient and advantageous embodiments or possibilities of the invention are described in more detail using the following description of the exemplary embodiments shown in the schematic drawing.
Figure 1 shows in longitudinal side view, a device of the invention with cleaning stations, Figure 2 shows in detailed side view of the device according to Figure 1, cutting device assigned to the tail region of the fish and cleaning device arranged downstream of the latter, Figures 3A and 3B show a headless and gutted white fish before processing in bottom view and sectional view, Figures 4A and 4B show in bottom view and sectional view, the fish according to Figure 3 after slicing in the tail region and having closed membrane in position for removing exposed head-side neck blood residues, Figures 5A, 5B and 5C show in bottom, longitudinal and transverse view, the fish according to Figure 4 after filleting in the region of its abdominal cavity and in position of brush cleaning of the invention for removing tail-side neck blood residues and Figure 6 shows in bottom view, the fish which is filleted in the abdominal cavity region and freed of neck blood residues with exposed blood sac residue in position for high-pressure liquid jet cleaning.
A device 9 of the invention provided for carrying out the process of the invention, as can be seen from Figure 1, comprises in a manner known per se, a frame 91 having a cutting device 4 and filleting device 6 arranged downstream of the latter. A
table 92 is provided, via which the device 9 is charged in succession with white fishes 1 to be processed. A conveying device 3 comprises in serial arrangement, groups of carrier elements 311 guided in continuously circulating manner and driven by means of conveying chain 31 for the transport of the fishes 1 in direction of fish travel R along the conveying path of the device 9. Each fish 1 is gripped by means of tail clamps 312 and conveyed with its tail in front.
A first high-pressure liquid jet cleaning device 5 of the invention is arranged along the conveying path between the cutting device 4 and the filleting device 6. A
brush cleaning device 7 of the invention is situated in the direction of fish travel R behind the filleting device 6. A rinsing device 99 is arranged downstream of this brush cleaning device 7, and a second high-pressure liquid jet cleaning device 8 of the invention follows the rinsing device 99 of the invention in turn in the direction of fish travel R.
As can be seen from Figures 1 and 2, conventional conducting bodies 93, 94, via which the fish 1 is brought to a cutting circular knife 41 of the cutting device 4, are provided at the entrance to the cutting device 4.
Each white fish 1 to be processed is a fish body which is freed of head and guts, but still provided with main bone 11. This is shown in Figures 3A and 3B. As is conventional for producing salt fish from white fish, the fish 1 is sliced in the tail region laterally of the main bone 11 from below to above the main bone 11 by means of the cutting device 4 and the knife 41 aligned accordingly vertically. The cutting line 411 can be seen from Figures 3A and 3B as a dot-and-dash line. The product shown in Figures 4A and 4B and guided over a conducting body 42 of the device 4 is produced. This is tainted with blood residues 21 exposed towards the head end of the fish 1, which lie to the left and right laterally of the main bone 111 in sites 2 formed by depressions in the region of the collar bone 12. These blood sites 2 are produced when cutting lateral blood kidneys at the head of the fish.
Means may be provided in order to favour emergence of blood below the membrane 13. Advantageously, the conducting body 93 may be shaped at the start of the conveying path by lateral flank surfaces 931 and/or may be provided with projecting elements so that lateral supports are formed, which act on the blood sites at the outer-lying abdomen flaps of the fish I under conveying pressure, in order to additionally press forward neck blood residues 21 below the fish membrane 13.
According to the invention, the neck blood residues 21 exposed on the head side are removed before separating out the main bone 111 lying in the region of the abdominal cavity 14 using high-pressure water jets 54 aligned with the neck blood residues 21 (Figure 2). As can be seen from Figures 4A and 4B, the high-pressure water jets 54 catch a working region 510 including the head-side neck blood residues 21.
Since the main bone of the abdominal cavity region has not yet been separated out, the fish flesh remains protected from water jet cleaning by the fish membrane 13 spanning the main bone 111 on the abdomen side.
Important parts of the first water jet cleaning device 5 can be seen in detail from Figure 2. The transfer body 42 has a roof ridge-like profile cross-section. An opening 421, from which water blasts at high pressure, namely at advantageously 70 to bar upwards into the working region 510, is situated in each lateral roof-ridge surface 420. The openings 421 are produced by a pair of vertically directed openings 53 in the conducting body 42. A pair of high-pressure water jet nozzles 51, which are exposed to water in each case via a hose 52 and are aligned with the associated opening 53, are arranged below the body 42.
As can be seen in particular from Figure 2, the two water jets 54 produced on the roof-ridge surfaces 420 still lie in the region of the cutting knife 4, so that cleaning takes place briefly in time and in a short space and immediately following the step in the cutting device 4. In particular it may be advantageous to start high-pressure water jet cleaning even before the end of step 411. As is conventional in fish-processing devices and fish-processing machines, the units acting on the fish are controlled as a function of the length of the fish 1 conveyed into the device. For this purpose, the length of each fish 1 is measured. Length measurement advantageously takes place in a manner known per se in the region upstream of the cutting device 4. The length value used for cutting the fish 1 may then also be used advantageously for controlling the water jet nozzles 51. The water jets 54 are controlled in particular as a function of fish length via magnetic valves 55 by means of a conventional computer not shown. It is significant that the water jets are produced in a relatively short time and with high intensity when passing the sites 2 of blood residues 21.
According to the invention, the main bone 111 lyinR in the reizion of the abdominal cavity 14 is removed by means of the filleting device 6 only after cleaning in the device 5. The filleting device 6 comprises in a conventional arrangement and design, a pair of circular knives 61, which are indicated in Figure 4B by a dot-and-dash line.
They are aligned at an angle with respect to one another according to the flank bones of the abdominal cavity 14. Whereas the part 112 of the main bone 11 remains in the tail region of the fish 1, the part 111 of the main bone 11 in the region of the abdominal cavity 14 is cut out of the fish 1 together with the membrane 13 and the blood kidneys lying below the main bone part 111. As can be seen from Figure 5A, neck blood residues 22 of the lateral blood kidneys cut at the head of the fish 1 and lying at the sites 2 towards the end of the tail of the fish 1 thus become free. These blood residues 22 have a significantly lower proportion than the head-side blood residues 21 already removed, and they are now removed according to the invention using a cleaning means which protects the flesh. For this purpose, in the exemplary embodiment the brush cleaning device 7 is provided, which can be seen in more detail from Figure 5B and 5C with essential elements.
The device 7 comprises a roller brush 71 which is like a double cone in longitudinal cross-section and which is mounted rotatably about an axis 710 in conjunction with a rotary drive 75. The axis 710 is directed vertically to an intended synunetrical conveying plane 90, in which the carriers 311 of the conveying device 3 circulate.
Bristles 76 terminate according to the obtuse-angle shape and guiding of the fish 1 at its bottom side using conically inclined brush detaching surface, so that they pass in adapted form in the working region 720 gently into brush engagement with the tail-side blood residues 22 lying at the sites 2, when the fish I passes the brush 71 for cleaning.
The fish 1 is pulled through the device 7 with the tail end in front by means of tail clamps. The device 7 comprises a brush cover 72 which can be seen from Figure and which forms a controlled engagement means, and which has a shell segment corresponding to the brush cone shape which can be pivoted back and forth about the roller axis 710 by means of control as a function of passing the blood residues 22.
Figure 5B shows the cover 72 in the position releasing the bristles 76 for cleaning the blood sites 2. Outside of the cleaning phase, the cover 72 is pivoted below the fish 1.
It forms a conducting surface, which closes a brush window 621 in a conducting body 62, which takes the fish 1 from the filleting device 6.
As can be seen from Figure 1, the brush 71 is mounted pivotably and arranged above an arm about an axis 730 which is parallel to the roller axis 710 such that the brush 71 can be pivoted towards the underside of the fish 1 or away therefrom, it can thus be raised and lowered in direction B. This movement for brush engagement is controlled in correspondence and connection with the movement of the cover 72, and specifically as a function of the occurrence and the passing of the sites 2 to be cleaned of the blood residues 22. Pneumatic control means 73 and 78 are advantageously provided, which are connected to conventional fish machine control.
As can be seen from Figures 1, 5B and 5C, the brush cleaning device 7 has pressing means in the form of suppressors 74 engaging laterally on the fish 1 in a pair from the top, and which are arranged to be pivotably movable about an axis 740 which is parallel to the brush roller axis 710. The pivoting movement of these suppressors 74 is controlled in time with the fish-processing machine 9, and specifically such that they prevent escape of the fish I at the top when the cover 72 is pivoted away and the brush 71 is raised.
As can be seen from Figure 1, the conducting body 42, which has the brush window 621 which can be closed by the cover 72, has a water rinsing device 99 immediately following the brush 71 spatially and in temporal operation. This water rinsing device 99 is formed by a plurality of water nozzles 991 and openings 993, which are provided and arranged in this respect in the same manner as the corresponding elements of the cleaning device 5. However, an essential difference exists in that the nozzles 991 and the associated openings 993 are advantageously provided in greater number, for example four times, and the water jet force is only so great that in the working region 992 which can be seen from Figure 6, namely in the region of the blood sites 2 already cleaned using primary cleaning in the stations 5 and 7, only final cleaning rinsing takes place using low water pressure.
To realise a further process step of the invention, a second high-pressure liquid jet cleaning device 8, which is operated using water, is provided on the conducting body 62 immediately spatially behind the rinsing device 99. This device has at least one nozzle 81 with assigned opening 83 arranged above the latter in the conc_lucting hody 62. In the device 8, a controlled water jet under high pressure is aligned with a further blood site 2, at which namely a blood sac residue 23 lies at the tail-side end of the abdominal cavity 14, as can be seen from Figures 4A, 5A and 6. It is significant that this water jet high-pressure cleaning only takes place when the main bone 111 lying in the region of the abdominal cavity 13 has been removed by means of the filleting device 6, since the blood sac freely comes to rest at the end of the then cut-away blood kidneys. In the exemplary embodiment, the blood sac residue 23 is removed after complete removal of neck blood. However, it may also be advantageous, for example to arrange the device 8 between the device 6 and the device 7. As for the other cleaning devices, water-jet control takes place, for example by means of magnetic valve, as a function of the occurrence and passing of the blood sac residue 23 at the cleaning device 8. For this purpose, the valve or valves are connected to the conventional operational control computer of a fish-processing machine for water-jet control.
HEADLESS AND GUTTED WHITEFISH AND DEVICE
FOR CARRYING OUT SAID METHOD
The invention relates to a process for controlled machine processing of headless and gutted white fish, in particular for producing salt fish, wherein the inain bone is separated out in the region of the abdominal cavity. The invention also relates to a device suitable for carrying out the process. Cod, pollack, cusk and ling may be mentioned as examples of white fish to be processed.
When separating out the main bone in the region of the abdoniinal cavity, some of the neck blood and some of the blood sac remains at the tail-side end of the abdominal cavity in the product. These blood residues are traditionally removed manually, after the white fish product has been taken from the fish-processing machine. The required working steps are expensive in terms of time and personnel. Conventional manual brush cleaning must proceed relatively intensively, namely deep-acting, over a large surface area and also for a long time on open flesh. There is thus the danger of contamination by bacteria being distributed over a wide surface of the flesh.
The aims of the invention are to simplify the said processing of white fish with respect to the removal of blood residues. Cleaning should take place largely by machine and in a manner which protects the product and should eliminate the danger of contamination existing in traditional manual brush cleaning. A device suitable for carrying out the process should be siinple to construct and be able to be operated for white fish which are very different in length and weight at optimum throughput rate.
According to the present invention, there is provided a process for controlled machine processing of headless and gutted white fish having a body with a main bone, wherein the main bone is separated out in a region of an abdominal cavity of the fish, characterised in that neck blood residues exposed on a head side of cut lateral blood kidneys of the body of the fish to be processed and la provided with the main bone are removed using at least one cleaning high-pressure liquid jet aligned with the neck blood residues, such that flesh of the fish remains protected from the high-pressure liquid jet by a membrane of the fish, spanning the main bone on an abdomen side of the fish, and in that the main bone lying in the region of the abdominal cavity is then removed and hence the fish membrane is opened, as a result of which neck blood residues of the lateral blood kidneys cut at the head of the fish and lying on a tail side of the fish become free.
Preferably, the aims are achieved in the process mentioned in the introduction in that neck blood residues exposed on the head-side, with which the fish to be processed is tainted, are removed before separating out the main bone using at least one cleaning high-pressure liquid jet aligned with the neck blood residues.
In a device suitable for carrying out the process, which comprises a conveying device determining the conveying path for conveying the fish to be processed in plural and a filleting device arranged on the conveying path for separating out the main bone in the region of the abdominal cavity, according to the invention a high-pressure liquid jet cleaning device for removing head-side neck blood residues is arranged along the conveying path in the direction of fish travel upstream of the filleting device. One important measure according to the invention consists in at least removing a large part of neck blood residues by means of at least one high-pressure liquid jet automatically in a fish machine and largely in a manner which protects the product. This is possible in that neck blood exposed in depressions and occurring on the fish membrane is removed using liquid blasting under high pressure, advantageously and expediently using water, wherein the flesh remains protected by the fish membrane over the abdominal cavity. The liquid high-pressure cleaning of the invention takes place in a relatively short time, locally concentrated and limited. Consequently, due to the measure that high-pressure liquid jet cleaning is carried out before separating out the main bone lying in the abdominal cavity region, on the one hand exposed blood residues are removed virtually without residue using liquid means, which is applied intensively at a local defined site, and on the other hand the fish flesh remains uninjured in spite of this intensive machine cleaning. Due to the removal according to the invention of neck blood residues exposed on the head side, a considerable saving of personnel and costs is achieved by avoiding expensive brush cleaning to be carried out traditionally by hand. The high-pressure liquid jet cleaning device of the invention can be operated not only using high speed, but it is also constructed simply and in space-saving manner. On the whole, considerable advantages are thus achieved for processing headless and gutted white fish, the main bone of which can be removed only in the abdominal cavity region.
Advantageously, first of all the fish to be processed may be sliced in the tail region laterally of the main bone, before the exposed neck blood residues are removed directly thereafter by means of high-pressure liquid jet cleaning.
A very particularly advantageous measure of the invention consists in that after separating out the main bone, neck blood residues lying on the tail side are removed using means which protect the flesh. It is post-cleaning, since according to the invention the greatest part of neck blood residues has already been removed by the step of high-pressure liquid jet cleaning. It has been found that after separating out the main bone lying in the region of the abdominal cavity, that is after opening the fish membrane, only a relatively small part of the neck blood, namely about 20 %
and less, remains on the then open fish flesh. Such residues may advantageously be detached using brush means which particularly protect the flesh, the intensity of which is largely reduced.
A supplementary further process step may advantageously consist in that after the fish to be processed has been sliced in the tail region laterally of the main bone, a blood sac residue lying at the tail-side end of the abdominal cavity is removed using at least one cleaning high-pressure liquid jet aligned with the latter. First of all the main bone may advantageously be separated out in the region of the abdominal cavity and the blood sac residue may be removed after removing neck blood.
At least one cleaning high-pressure liquid jet in the form of a high-pressure waterjet, advantageously having jet pressure at the blood site to be removed of at least 50 bar, preferably at 70 to 100 bar, may advantageously be applied at a blood site to be cleaned primarily.
In order to control the cleaning operation, the process of slicing the fish in the tail region laterally of the main bone may be used particularly advantageously, wherein a fish size value is obtained for controlled operation of at least one cleaning step.
In order to render neck blood residues to be removed accessible as much as possible to high-pressure liquid jet cleaning, the fish is advantageously conveyed in a position pressed against lateral support at least at one site upstream of jet cleaning in order to press forward neck blood residues below the fish membrane.
A further advantageous additional process measure may consist in that the region of the processed fish which is freed of blood residues is washed using rinsing liquid, which is applied at low static pressure in a manner which protects the flesh.
The cleaning device may advantageously have at least one pair of nozzles producing in each case a high-pressure liquid jet for removing head-side neck blood residues, wherein the nozzles are aligned assigned to depressions of a passing fish having the blood and lying laterally of the main bone and on the head-side end of the fish membrane.
In order to slice the fish in the tail region before cleaning, a device for slicing the tail region of the fish laterally of its main bone is arranged along the conveying path in the direction of fish travel upstream of the cleaning device provided for removing head-side neck blood residues.
According to the present invention, there is also provided a device for processing of headless and gutted white fish for carrying out the process, comprising a conveying device determining a conveying path for conveying the fish to be processed in plural and a filleting device arranged on a conveying path for separating out the main bone in the region of the abdominal cavity, characterised in that a high-pressure liquid jet cleaning device for removing neck blood residues exposed on the head side of cut lateral blood kidneys of the fish body to be processed and provided with the main bone is along the conveying path in the direction of fish travel upstream of the filleting device, so that said at least one cleaning high-pressure liquid jet blasted from the cleaning device is aligned with the exposed neck blood residues such that the fish flesh remains protected from the high-pressure liquid jet by the fish membrane spanning the main bone on the abdomen side.
Preferably, in order to also remove by machine proportionately fewer neck blood residues, which occur after filleting in the region of the fish abdominal cavity, a cleaning device for removing tail-side neck blood residues may be arranged advantageously in the direction of fish travel downstream of the filleting device.
Such a cleaning device advantageously has a detaching means having mechanical detaching elements and which can be contacted with the blood sites in a manner which protects the flesh. This means is advantageously formed by at least one drivable brush, preferably in the form of a double cone-like roller brush which can be rotated. A controllable means, which brings the brush into cleaning engagement with the blood sites to be cleaned when passing the latter, may advantageously be assigned to the brush. In a preferred embodiment according to the invention, a cover element, the position of which can be changed accordingly, which releases the brush only for cleaning, otherwise which covers it, is provided as a controllable engagement means. The brush engagement means may advantageously have a movement means, by means of which the brush can be moved in particular by adjustable compressive force against the blood sites to be cleaned and can be removed from the latter. The cleaning device provided for removing tail-side neck blood residues may also advantageously comprise a controllable means for pressing the fish against the detaching means in the region of the blood sites to be cleaned.
Preferably, in a development of the device of the invention, a high-pressure liquid jet device for removing blood sac residue lying at the tail-side end of the abdominal cavity may be arranged on the conveying path. This cleaning device is arranged expediently and advantageously along the conveying path in the direction of fish travel behind the filleting device.
Preferably in order to arrange nozzles of a cleaning device of the invention in a particularly space-saving and simple manner, in an embodiment of the invention, at least one transfer body is provided with at least one opening for the passage of cleaning liquid, which is blasted from at least one nozzle, wherein the transfer body preferably has a support surface pointing upwards for abdomen-side fish support.
Preferably, in order to treat sites already essentially freed of blood residues for removing cleaning residues, a further cleaning device in the form of a rinsing device for washing the blood sites to be cleaned may be arranged in the direction of fish travel behind at least one cleaning device primarily removing blood residues. The rinsing device preferably has at least one rinsing nozzle releasing rinsing liquid, in particular water, under low static pressure.
5a A device for slicing the tail region of the fish laterally of its main bone may advantageously be arranged along the conveying pat in the direction of fish travel upstream of the cleaning device provided for removing head-side neck blood residues, wherein a measuring device with assigned conveying path for fish length measurement, which is provided for operational control at least of a cleaning means which removes blood residues, is arranged before the cutting device.
Particularly expedient and advantageous embodiments or possibilities of the invention are described in more detail using the following description of the exemplary embodiments shown in the schematic drawing.
Figure 1 shows in longitudinal side view, a device of the invention with cleaning stations, Figure 2 shows in detailed side view of the device according to Figure 1, cutting device assigned to the tail region of the fish and cleaning device arranged downstream of the latter, Figures 3A and 3B show a headless and gutted white fish before processing in bottom view and sectional view, Figures 4A and 4B show in bottom view and sectional view, the fish according to Figure 3 after slicing in the tail region and having closed membrane in position for removing exposed head-side neck blood residues, Figures 5A, 5B and 5C show in bottom, longitudinal and transverse view, the fish according to Figure 4 after filleting in the region of its abdominal cavity and in position of brush cleaning of the invention for removing tail-side neck blood residues and Figure 6 shows in bottom view, the fish which is filleted in the abdominal cavity region and freed of neck blood residues with exposed blood sac residue in position for high-pressure liquid jet cleaning.
A device 9 of the invention provided for carrying out the process of the invention, as can be seen from Figure 1, comprises in a manner known per se, a frame 91 having a cutting device 4 and filleting device 6 arranged downstream of the latter. A
table 92 is provided, via which the device 9 is charged in succession with white fishes 1 to be processed. A conveying device 3 comprises in serial arrangement, groups of carrier elements 311 guided in continuously circulating manner and driven by means of conveying chain 31 for the transport of the fishes 1 in direction of fish travel R along the conveying path of the device 9. Each fish 1 is gripped by means of tail clamps 312 and conveyed with its tail in front.
A first high-pressure liquid jet cleaning device 5 of the invention is arranged along the conveying path between the cutting device 4 and the filleting device 6. A
brush cleaning device 7 of the invention is situated in the direction of fish travel R behind the filleting device 6. A rinsing device 99 is arranged downstream of this brush cleaning device 7, and a second high-pressure liquid jet cleaning device 8 of the invention follows the rinsing device 99 of the invention in turn in the direction of fish travel R.
As can be seen from Figures 1 and 2, conventional conducting bodies 93, 94, via which the fish 1 is brought to a cutting circular knife 41 of the cutting device 4, are provided at the entrance to the cutting device 4.
Each white fish 1 to be processed is a fish body which is freed of head and guts, but still provided with main bone 11. This is shown in Figures 3A and 3B. As is conventional for producing salt fish from white fish, the fish 1 is sliced in the tail region laterally of the main bone 11 from below to above the main bone 11 by means of the cutting device 4 and the knife 41 aligned accordingly vertically. The cutting line 411 can be seen from Figures 3A and 3B as a dot-and-dash line. The product shown in Figures 4A and 4B and guided over a conducting body 42 of the device 4 is produced. This is tainted with blood residues 21 exposed towards the head end of the fish 1, which lie to the left and right laterally of the main bone 111 in sites 2 formed by depressions in the region of the collar bone 12. These blood sites 2 are produced when cutting lateral blood kidneys at the head of the fish.
Means may be provided in order to favour emergence of blood below the membrane 13. Advantageously, the conducting body 93 may be shaped at the start of the conveying path by lateral flank surfaces 931 and/or may be provided with projecting elements so that lateral supports are formed, which act on the blood sites at the outer-lying abdomen flaps of the fish I under conveying pressure, in order to additionally press forward neck blood residues 21 below the fish membrane 13.
According to the invention, the neck blood residues 21 exposed on the head side are removed before separating out the main bone 111 lying in the region of the abdominal cavity 14 using high-pressure water jets 54 aligned with the neck blood residues 21 (Figure 2). As can be seen from Figures 4A and 4B, the high-pressure water jets 54 catch a working region 510 including the head-side neck blood residues 21.
Since the main bone of the abdominal cavity region has not yet been separated out, the fish flesh remains protected from water jet cleaning by the fish membrane 13 spanning the main bone 111 on the abdomen side.
Important parts of the first water jet cleaning device 5 can be seen in detail from Figure 2. The transfer body 42 has a roof ridge-like profile cross-section. An opening 421, from which water blasts at high pressure, namely at advantageously 70 to bar upwards into the working region 510, is situated in each lateral roof-ridge surface 420. The openings 421 are produced by a pair of vertically directed openings 53 in the conducting body 42. A pair of high-pressure water jet nozzles 51, which are exposed to water in each case via a hose 52 and are aligned with the associated opening 53, are arranged below the body 42.
As can be seen in particular from Figure 2, the two water jets 54 produced on the roof-ridge surfaces 420 still lie in the region of the cutting knife 4, so that cleaning takes place briefly in time and in a short space and immediately following the step in the cutting device 4. In particular it may be advantageous to start high-pressure water jet cleaning even before the end of step 411. As is conventional in fish-processing devices and fish-processing machines, the units acting on the fish are controlled as a function of the length of the fish 1 conveyed into the device. For this purpose, the length of each fish 1 is measured. Length measurement advantageously takes place in a manner known per se in the region upstream of the cutting device 4. The length value used for cutting the fish 1 may then also be used advantageously for controlling the water jet nozzles 51. The water jets 54 are controlled in particular as a function of fish length via magnetic valves 55 by means of a conventional computer not shown. It is significant that the water jets are produced in a relatively short time and with high intensity when passing the sites 2 of blood residues 21.
According to the invention, the main bone 111 lyinR in the reizion of the abdominal cavity 14 is removed by means of the filleting device 6 only after cleaning in the device 5. The filleting device 6 comprises in a conventional arrangement and design, a pair of circular knives 61, which are indicated in Figure 4B by a dot-and-dash line.
They are aligned at an angle with respect to one another according to the flank bones of the abdominal cavity 14. Whereas the part 112 of the main bone 11 remains in the tail region of the fish 1, the part 111 of the main bone 11 in the region of the abdominal cavity 14 is cut out of the fish 1 together with the membrane 13 and the blood kidneys lying below the main bone part 111. As can be seen from Figure 5A, neck blood residues 22 of the lateral blood kidneys cut at the head of the fish 1 and lying at the sites 2 towards the end of the tail of the fish 1 thus become free. These blood residues 22 have a significantly lower proportion than the head-side blood residues 21 already removed, and they are now removed according to the invention using a cleaning means which protects the flesh. For this purpose, in the exemplary embodiment the brush cleaning device 7 is provided, which can be seen in more detail from Figure 5B and 5C with essential elements.
The device 7 comprises a roller brush 71 which is like a double cone in longitudinal cross-section and which is mounted rotatably about an axis 710 in conjunction with a rotary drive 75. The axis 710 is directed vertically to an intended synunetrical conveying plane 90, in which the carriers 311 of the conveying device 3 circulate.
Bristles 76 terminate according to the obtuse-angle shape and guiding of the fish 1 at its bottom side using conically inclined brush detaching surface, so that they pass in adapted form in the working region 720 gently into brush engagement with the tail-side blood residues 22 lying at the sites 2, when the fish I passes the brush 71 for cleaning.
The fish 1 is pulled through the device 7 with the tail end in front by means of tail clamps. The device 7 comprises a brush cover 72 which can be seen from Figure and which forms a controlled engagement means, and which has a shell segment corresponding to the brush cone shape which can be pivoted back and forth about the roller axis 710 by means of control as a function of passing the blood residues 22.
Figure 5B shows the cover 72 in the position releasing the bristles 76 for cleaning the blood sites 2. Outside of the cleaning phase, the cover 72 is pivoted below the fish 1.
It forms a conducting surface, which closes a brush window 621 in a conducting body 62, which takes the fish 1 from the filleting device 6.
As can be seen from Figure 1, the brush 71 is mounted pivotably and arranged above an arm about an axis 730 which is parallel to the roller axis 710 such that the brush 71 can be pivoted towards the underside of the fish 1 or away therefrom, it can thus be raised and lowered in direction B. This movement for brush engagement is controlled in correspondence and connection with the movement of the cover 72, and specifically as a function of the occurrence and the passing of the sites 2 to be cleaned of the blood residues 22. Pneumatic control means 73 and 78 are advantageously provided, which are connected to conventional fish machine control.
As can be seen from Figures 1, 5B and 5C, the brush cleaning device 7 has pressing means in the form of suppressors 74 engaging laterally on the fish 1 in a pair from the top, and which are arranged to be pivotably movable about an axis 740 which is parallel to the brush roller axis 710. The pivoting movement of these suppressors 74 is controlled in time with the fish-processing machine 9, and specifically such that they prevent escape of the fish I at the top when the cover 72 is pivoted away and the brush 71 is raised.
As can be seen from Figure 1, the conducting body 42, which has the brush window 621 which can be closed by the cover 72, has a water rinsing device 99 immediately following the brush 71 spatially and in temporal operation. This water rinsing device 99 is formed by a plurality of water nozzles 991 and openings 993, which are provided and arranged in this respect in the same manner as the corresponding elements of the cleaning device 5. However, an essential difference exists in that the nozzles 991 and the associated openings 993 are advantageously provided in greater number, for example four times, and the water jet force is only so great that in the working region 992 which can be seen from Figure 6, namely in the region of the blood sites 2 already cleaned using primary cleaning in the stations 5 and 7, only final cleaning rinsing takes place using low water pressure.
To realise a further process step of the invention, a second high-pressure liquid jet cleaning device 8, which is operated using water, is provided on the conducting body 62 immediately spatially behind the rinsing device 99. This device has at least one nozzle 81 with assigned opening 83 arranged above the latter in the conc_lucting hody 62. In the device 8, a controlled water jet under high pressure is aligned with a further blood site 2, at which namely a blood sac residue 23 lies at the tail-side end of the abdominal cavity 14, as can be seen from Figures 4A, 5A and 6. It is significant that this water jet high-pressure cleaning only takes place when the main bone 111 lying in the region of the abdominal cavity 13 has been removed by means of the filleting device 6, since the blood sac freely comes to rest at the end of the then cut-away blood kidneys. In the exemplary embodiment, the blood sac residue 23 is removed after complete removal of neck blood. However, it may also be advantageous, for example to arrange the device 8 between the device 6 and the device 7. As for the other cleaning devices, water-jet control takes place, for example by means of magnetic valve, as a function of the occurrence and passing of the blood sac residue 23 at the cleaning device 8. For this purpose, the valve or valves are connected to the conventional operational control computer of a fish-processing machine for water-jet control.
Claims (28)
1. Process for controlled machine processing of headless and gutted white fish (1) having a body with a main bone, wherein the main bone (111) is separated out in a region of an abdominal cavity (14) of the fish, characterised in that neck blood residues (21) exposed on a head side of cut lateral blood kidneys of the body of the fish to be processed and provided with the main bone (111) are removed using at least one cleaning high-pressure liquid jet (54) aligned with the neck blood residues (21), such that flesh of the fish remains protected from the high-pressure liquid jet (54) by a membrane (13) of the fish, spanning the main bone (111) on an abdomen side of the fish, and in that the main bone (111) lying in the region of the abdominal cavity (14) is then removed and hence the fish membrane (13) is opened, as a result of which neck blood residues (22) of the lateral blood kidneys cut at the head of the fish (1) and lying on a tail side of the fish become free.
2. Process according to claim 1, characterised in that the fish (1) to be processed is sliced in its tail region laterally of the main bone (11), then the exposed neck blood residues (21) are removed by means of high-pressure liquid jet cleaning and then the main bone (111) is separated out in the region of the abdominal cavity (14).
3. Process according to claim 1 or 2, characterised in that after separating out the main bone (111) lying in the region of the abdominal cavity (14), neck blood residues (22) lying on the tail side are removed using cleaning means (71) which protect the flesh.
4. Process according to claim 3, characterised in that the neck blood residues (22) lying on the tail side are detached using controlled brush means (71).
5. Process according to any one of claims 1 to 4, characterised in that the fish (1) to be processed is sliced in its tail region laterally of the main bone (11) and a blood sac residue (23) lying at the tail-side end of the abdominal cavity (14) is removed using at least one cleaning high-pressure liquid jet aligned with the latter.
6. Process according to claim 5, characterised in that the blood sac residue (23) is removed after separating out the main bone (111) lying in the region of the abdominal cavity (14).
7. Process according to any one of claims 1 to 6, characterised in that said at least one cleaning high-pressure liquid jet (54) is in the form of a high-pressure water jet, having jet pressure at the blood site (2) to be removed in the order of magnitude of at least 50 bar and is applied at blood site (2) to be cleaned.
8. Process according to claim 7, wherein the jet pressure is at 70 to 100 bar.
9. Process according to any one of claims 1 to 8, characterised in that the region of the processed fish (1) which is freed of neck blood residues (21, 22) is washed using liquid, which is applied at low static pressure in a manner which protects the flesh.
10. Process according to any one of claims 1 to 9, characterised in that the fish (1) is conveyed in a position pressed against a support (42) at least at one site upstream of high-pressure liquid jet cleaning which removes the exposed neck blood residues (21) in order to press forward neck blood residues (21) below the fish membrane (13).
11. Process according to any one of claims 1 to 10, characterised in that the fish (1) to be processed is conveyed with its tail in front.
12. Process according to any one of claims 1 to 11, characterised in that the fish (1) to be processed is sliced in the tail region laterally of the main bone (11) and at least one fish size value is obtained for controlled operation of high-pressure liquid jet cleaning when the fish (1) is sliced.
13. Device for processing of headless and gutted white fish for carrying out the process according to any one of claims 1 to 12, comprising a conveying device (3) determining a conveying path for conveying the fish (1) to be processed in plural and a filleting device (6) arranged on a conveying path for separating out the main bone (111) in the region of the abdominal cavity (14), characterised in that a high-pressure liquid jet cleaning device (5) for removing neck blood residues (21) exposed on the head side of cut lateral blood kidneys of the fish body to be processed and provided with the main bone (111) is along the conveying path in the direction of fish travel (R) upstream of the filleting device (6), so that said at least one cleaning high-pressure liquid jet (54) blasted from the cleaning device (5) is aligned with the exposed neck blood residues (21) such that the fish flesh remains protected from the high-pressure liquid jet (54) by the fish membrane (13) spanning the main bone (111) on the abdomen side.
14. Device according to claim 13, characterised in that the cleaning device (5) for removing head-side neck blood residues (21) has at least one pair of nozzles (51) producing in each case the high-pressure liquid jet (54), wherein the nozzles (51) are aligned assigned to depressions of a passing fish (1) having blood and lying laterally of the main bone (11) and on a head-side end of the fish membrane (13).
15. Device according to claim 13 or 14, comprising a device (4) for slicing the tail region of the fish (1) laterally of its main bone (11), along the conveying path in the direction of fish travel (R) upstream of the cleaning device (5) provided for removing head-side neck blood residues (21).
16. Device according to any one of claims 13 to 15, comprising a cleaning device (7) for removing tail-side neck blood residues (22), along the conveying path in the direction of fish travel (R) downstream of the filleting device (6).
17. Device according to claim 16, characterised in that the cleaning device (7) provided for removing tail-side neck blood residues (22) comprises a detaching means (71) having mechanical detaching elements and which is capable of being contacted with blood sites (2) in a manner which protects the flesh.
18. Device according to claim 17, characterised in that the detaching means has at least one drivable brush (71).
19. Device according to claim 18, comprising a controllable means (72) which brings the brush into cleaning engagement with the blood sites (2) to be cleaned only when passing the latter, assigned to the brush (71).
20. Device according to claim 18, characterised in that the controllable means (72) comprises a cover element, a position of which is capable of being changed accordingly, which releases the brush (71) only for cleaning, otherwise which covers it.
21. Device according to claim 19 or 20, characterised in that the controllable means (72) has a movement means (73), by means of which the brush (71) is movable against the blood sites (2) to be cleaned and is removable from the latter.
22. Device according to any one of claims 17 to 21, characterised in that the cleaning device (7) provided for removing tail-side neck blood residues (22) comprises a controllable means (74) for pressing the fish (1) against the detaching means (71) in the region of the blood sites (2) to be cleaned.
23. Device according to any one of claims 13 to 22, comprising a high-pressure liquid jet device (8) for removing blood sac residue (23) lying at a tail-side end of the abdominal cavity, arranged on the conveying path.
24. Device according to claim 22, characterised in that the cleaning device (8) provided for removing the blood sac residue (23) is arranged along the conveying path in the direction of fish travel (R) behind the filleting device (6).
25. Device according to any one of claims 13 to 24, characterised in that the high-pressure liquid jet cleaning device is mounted on at least one transfer body (42, 62) of a pre-arranged station (4, 6), wherein the transfer body (42, 62) has at least one opening (53; 83; 993) for a passage of cleaning liquid, which is blasted from at least one nozzle (51; 81; 991).
26. Device according to any one of claims 13 to 25, comprising a further cleaning device in the form of a rinsing device (99) for washing the blood sites (2), mounted in the direction of fish travel (R) behind said liquid jet cleaning device (5, 7) removing blood residues (21, 22, 23), wherein the rinsing device (99) has at least one rinsing nozzle (991) releasing rinsing liquid under low static pressure.
27. Device according to claim 26, wherein the rinsing liquid is water.
28. Device according to claim 15, comprising a device (4) for slicing the tail region of the fish (1) laterally of its main bone (11), along the conveying path in the direction of fish travel (R) upstream of the cleaning device (5) provided for removing head-side neck blood residues (21), wherein a measuring device with assigned conveying path for fish length measurement, which is provided for operational control of the cleaning device which removes blood residues (2), is mounted before the cutting device (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003141941 DE10341941B3 (en) | 2003-09-06 | 2003-09-06 | Assembly for mechanical processing of beheaded and gutted white fish, for salt fish production, has a high pressure water jet cleaning station to clean blood from the head ends before filleting |
| DE10341941.1 | 2003-09-06 | ||
| PCT/EP2004/009038 WO2005023009A1 (en) | 2003-09-06 | 2004-08-12 | Method for controlling mechanical processing headless and gutted whitefish and device for carrying out said method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2537453A1 CA2537453A1 (en) | 2005-03-17 |
| CA2537453C true CA2537453C (en) | 2008-12-30 |
Family
ID=33441810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002537453A Expired - Lifetime CA2537453C (en) | 2003-09-06 | 2004-08-12 | Method for controlling mechanical processing headless and gutted whitefish and device for carrying out said method |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1659869B8 (en) |
| CA (1) | CA2537453C (en) |
| DE (2) | DE10341941B3 (en) |
| DK (1) | DK200600247A (en) |
| ES (1) | ES2276331T3 (en) |
| IS (1) | IS2535B (en) |
| NO (1) | NO329722B1 (en) |
| PT (1) | PT1659869E (en) |
| WO (1) | WO2005023009A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005009034B3 (en) * | 2005-02-18 | 2006-03-16 | Nordischer Maschinenbau Rud. Baader Gmbh + Co Kg | Controlled automatic processing method e.g. for headed and gutted white fish, involves carefully removing meat from neck of fish in layers with meat within abdominal cavity is separated from main fishbone |
| DE112011105444B4 (en) * | 2011-07-11 | 2015-02-19 | Nordischer Maschinenbau Rud. Baader Gmbh + Co. Kg | A method for removing blood released during filleting from the main bone of fish and means for removing such blood |
| CN111184055B (en) * | 2020-02-19 | 2021-04-30 | 大连工业大学 | Dirty belt cleaning device is removed to fish |
| CN111387262B (en) * | 2020-03-02 | 2022-02-11 | 中山火炬职业技术学院 | Fish continuous conveying bloodletting equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2993227A (en) * | 1957-10-14 | 1961-07-25 | Robert F Couret | Fish cleaning and scaling machine |
| US3139648A (en) * | 1962-06-29 | 1964-07-07 | Sr Emory C Rice | Fish cutting and cleaning machine |
| JPS54160697A (en) * | 1978-05-29 | 1979-12-19 | Taiyo Seisakushiyo Kk | Horizontal type *mefun* removing machine |
| DE2832259C2 (en) * | 1978-07-22 | 1980-07-10 | Nordischer Maschinenbau Rud. Baader Gmbh + Co Kg, 2400 Luebeck | Method of de-grazing fish |
| US4446601A (en) * | 1982-08-23 | 1984-05-08 | Carruthers Equipment Co. | Squid cleaning method and apparatus |
| DE4439158A1 (en) * | 1994-11-04 | 1996-05-09 | Nordischer Maschinenbau | Process for mechanically gutting fish and machine for carrying out the process |
| US5628680A (en) * | 1995-09-08 | 1997-05-13 | Royal Seafoods, Inc. | Water jet fish cleaning apparatus for kirimi processor |
-
2003
- 2003-09-06 DE DE2003141941 patent/DE10341941B3/en not_active Expired - Lifetime
-
2004
- 2004-08-12 PT PT04764042T patent/PT1659869E/en unknown
- 2004-08-12 CA CA002537453A patent/CA2537453C/en not_active Expired - Lifetime
- 2004-08-12 EP EP04764042A patent/EP1659869B8/en not_active Expired - Lifetime
- 2004-08-12 ES ES04764042T patent/ES2276331T3/en not_active Expired - Lifetime
- 2004-08-12 DE DE502004002399T patent/DE502004002399D1/en not_active Expired - Lifetime
- 2004-08-12 WO PCT/EP2004/009038 patent/WO2005023009A1/en active IP Right Grant
-
2005
- 2005-03-01 NO NO20051094A patent/NO329722B1/en unknown
-
2006
- 2006-02-21 DK DK200600247A patent/DK200600247A/en unknown
- 2006-03-01 IS IS8335A patent/IS2535B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PT1659869E (en) | 2007-02-28 |
| NO20051094L (en) | 2005-06-24 |
| NO329722B1 (en) | 2010-12-06 |
| WO2005023009A1 (en) | 2005-03-17 |
| EP1659869B8 (en) | 2007-03-14 |
| DE502004002399D1 (en) | 2007-02-01 |
| IS2535B (en) | 2009-08-15 |
| CA2537453A1 (en) | 2005-03-17 |
| DE10341941B3 (en) | 2004-12-16 |
| ES2276331T3 (en) | 2007-06-16 |
| DK200600247A (en) | 2006-05-04 |
| EP1659869B1 (en) | 2006-12-20 |
| EP1659869A1 (en) | 2006-05-31 |
| IS8335A (en) | 2006-03-01 |
| NO20051094D0 (en) | 2005-03-01 |
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| EEER | Examination request |