DE2606178B1

DE2606178B1 - Fish filleting machine - with lower fishbone guides slotted for ventral spikes, and upper guides to dorsal spike cutters

Info

Publication number: DE2606178B1
Application number: DE19762606178
Authority: DE
Inventors: Franz Dohrendorf
Original assignee: Nordischer Maschinenbau Rud Baader GmbH and Co KG
Current assignee: Nordischer Maschinenbau Rud Baader GmbH and Co KG
Priority date: 1976-02-17
Filing date: 1976-02-17
Publication date: 1976-11-11
Also published as: DE2606178A1

Abstract

A fish filleting machine consists of a pair of ventral filleting blades to cut off the ventral spikes, a pair of rib blades to cut free the ventral flaps and a pair of blades to cut free the dorsal spikes. The discs of the spine are supported by a pair of lower fishbone guides with a slot for the ventral spikes. This provides a sure guide for the fishbone structure of fish in a great variety of sizes. Even small fish with rigid vertebral extensions can now be turned into fillets.

Description

Bei dem in F i g. 1 dargestellten Ausschnitt aus einer Filetiermaschine für Fische ist unterhalb einer Bahn 61 für in ihrer Längsrichtung geförderte Fische ein Paar Bauchfiletiermesser 11 und 12 und in Förderrichtung der Fische hinter diesen gelegen ein Paar in einem rechten oder stumpfen Winkel zueinander liegender Rippenmesser 21 und 22 angeordnet. In Förderrichtung des Fisches gesehen hinter diesen liegt ein Paar im spitzen Winkel zueinander angeordneter Messer 31 und 32 zum Freischneiden der Rückenspeichen von Fischen. Die Berührungsstelle der Schneiden der beiden Messer 31 und 32 überragt die Bahn 61 des Fisches um ein bestimmtes Maß. Hinter den Bauchfiletiermessern 11 und 12 sind in deren Ebenen ein Paar miteinander verbundener, einen Schlitz 45 zwischen sich lassender unterer Grätenführungen 43 und 44 angeordnet, welche um eine maschinenfeste Achse 46 schwenkbar und In the case of the FIG. 1 shown section from a filleting machine for fish is below a track 61 for fish conveyed in its longitudinal direction a pair of belly filleting knives 11 and 12 and behind them in the conveying direction of the fish a pair of rib knives lying at a right or obtuse angle to each other 21 and 22 arranged. Seen in the conveying direction of the fish lies behind this a pair of knives 31 and 32 arranged at an acute angle to one another for free cutting the spokes of the backs of fish. The point of contact between the cutting edges of the two knives 31 and 32 protrudes beyond the path 61 of the fish by a certain amount. Behind the belly filleting knives 11 and 12 are a pair of interconnected slots 45 in their planes arranged between letting lower bone guides 43 and 44, which around a machine-fixed axis 46 pivotable and

gegen Ausweichen nach unten durch eine Druckfeder 47 abgestützt sind. Diese unteren Grätenführungen 43 und 44 erstrecken sich von den Bauchfiletiermessern 11 und 12 unter den Rippenmessern 21 und 22 hinweg bis zwischen oder hinter die Messer 31 und 32 zum Freischneiden der Rückenspeichen von Fischen. Außer nicht dargestellter Antrieben für die Messer 11, 12, 21, 22,31 und 32, Mitteln zum fördernden Angriff an einem Fisch und solchen zum Führen desselben sind in den Ebenen der Rippenmesser 31 und 32 einen Schlitz 48 zwischen sich einschließender oberer Grätenführungen 41 und 42 maschinenfest angeordnet, welche sich bis zu den Außenseiten der Messer 31 und 32 erstrecken.are supported against dodging downward by a compression spring 47. These lower bone guides 43 and 44 extend from the belly filleting knives 11 and 12 under the rib knives 21 and 22 up between or behind the Knives 31 and 32 for cutting free the back spokes of fish. Except not shown Drives for the knives 11, 12, 21, 22, 31 and 32, means for promoting attack on a fish and those for guiding it are in the planes of the rib knives 31 and 32 a slot 48 between them enclosing upper bone guides 41 and 42 fixed to the machine, which extend to the outside of the knife 31 and 32 extend.

In Fig. 2 tragen die im stumpfen Winkel zueinander angeordneten oberen Grätenführungen 41 und 42 die durch die Rippenmesser 21 und 22 freigeschnittenen Bauchlappen eines Fisches, dessen Wirbel 51 nach oben durch die Grätenführungen 41 und 42 und von unten durch die beiden unteren Grätenführungen 43 und 44 abgestützt sind. Während erstere 41 und 42 an den Wurzeln Rückenspeichen 53 angreifend das Grätengerüst seitlich zentrieren, greifen die unteren Grätenführungen 43 und 44 an den von den Bauchfiletiermessern 11 und 12 freigeschnittenen Bauchspeichen 52 an und stabilisieren damit das Grätengerüst. Die von den Rippenmessern 21 und 22 freigeschnittenen seitlichen Wirbelfortsätze 54 mit Rippen 55 liegen unterhalb der oberen Grätenführungen 41 und 42 und werden gerade von den Messern 31 und 32 von den Wirbeln 51 abgeschnitten, während die über die oberen Grätenführungen 41 und 42 hinausragenden Teile der Messer 31 und 32 beidseitig der Wirbel 51 und der Rückenspeichen 53 Einschnitte in das Rückenteil des Fisches machen, durch welche der Fisch als Blockfilet von dem Grätengerüst abgeschnitten wird. In Fig. 2 wear the upper one arranged at an obtuse angle Bone guides 41 and 42 cut free by the rib knives 21 and 22 Belly lobes of a fish whose vertebrae 51 up through the bone guides 41 and 42 and supported from below by the two lower bone guides 43 and 44 are. While the former 41 and 42 attacking the roots back spokes 53 the Center the bone structure laterally, the lower bone guides 43 and 44 grip on the pancreas 52 cut free by the belly filleting knives 11 and 12 and thus stabilize the skeleton. Those of the rib knives 21 and 22 cut free lateral vertebral processes 54 with ribs 55 lie below the upper bone guides 41 and 42 and are straight from the knives 31 and 32 of the vertebrae 51 cut, while the over the upper bone guides 41 and 42 protruding parts of the knives 31 and 32 on both sides of the vertebrae 51 and the spine 53 Make incisions in the back of the fish, through which the fish can be Block fillet is cut from the skeleton.

Die Wirkungsweise einer derartigen Maschine ist folgende: Ein geköpfter und ausgeweideter Fisch wird mit seiner Bauchseite nach unten den Bauchfiletiermessern 11 und 12 so zugeführt, daß seine Wirbelsäule längs der Bahn 61 in Richtung des Pfeiles 62 gefördert wird. The mode of operation of such a machine is as follows: A decapitated one and gutted fish is belly-side down with the belly filleting knives 11 and 12 so fed that his spine along the path 61 in the direction of the Arrow 62 is promoted.

Die Förderung kann dabei wahlweise Schwanz voraus oder Kopfende voraus erfolgen. Durch die Bauchfiletiermesser 11 und 12 wird der Fisch von seiner Bauchseite zwischen Bauchhöhle und Schwanzwurzel mit je einem Einschnitt rechts und links der Bauchspeichen versehen, in welche die unteren Grätenführungen 43 und 44 eindringen und gleichzeitig die Abstützung der Wirbel 51 des Fisches übernehmen. Durch nicht dargestellte Ausbreiter und Führungsklappen bekannter Art werden die Bauchlappen des Fisches den Rippenmessern 21 und 22 so zugeführt, daß diese oberhalb der Rippen 55 und der seitlichen Wirbelfortsätze 54 bis an die Wurzeln der Rückenspeichen 53 reichende Einschnitte in den Fisch machen, in welche die oberen Grätenführungen 41 und 42 eindringen und die Abstützung und Führung der Wirbel 51 von oben übernehmen. Der nun durch achtfachen Angriff an seinem Grätengerüst sicher geführte Fisch wird nun zu den Messern 31 und 32 gefördert, welche von dem unausweichlich geführten Grätengerüst die seitlichen Wirbelfortsätze 54 mit den Rippen 55, beidseitig der Rückenspeichen 53 den Fisch von dem Grätengerüst freischneiden. Ein derart hergestelltes Blockfilet kann nun direkt seiner Konservierung oder anderweitigen Aufbereitung zugeführt werden. Es können aber auch durch hinter den Messern 31 und 32 anzuordnende Trennmesser die beiden Filets voneinander und dem zwischen ihnen befindlichen Flossenstreifen getrennt werden.The promotion can either tail ahead or head end ahead take place. The belly filleting knives 11 and 12 remove the fish from its belly side between the abdominal cavity and the root of the tail with an incision each to the right and left of the Provided pancakes into which the lower bone guides 43 and 44 penetrate and at the same time take over the support of the vertebrae 51 of the fish. By not shown spreaders and guide flaps of known type are the abdominal flaps of the fish the rib knives 21 and 22 fed so that they are above the ribs 55 and the lateral vertebral processes 54 to the roots of the back spokes 53 Make extensive incisions in the fish, in which the upper bone guides 41 and 42 penetrate and take over the support and guidance of the vertebrae 51 from above. The fish is now safely guided by eightfold attacks on its skeleton now promoted to the knives 31 and 32, which are guided by the inevitable The skeleton of the lateral vertebral processes 54 with the ribs 55, on both sides of the Back spokes 53 cut the fish free from the skeleton. A manufactured in this way Block fillet can now be preserved or processed in any other way are fed. But it can also be arranged behind the knives 31 and 32 Separating knife the two fillets from each other and the fin strip between them be separated.

Claims

Claims: 1. Machine for filleting fish with a Pair of belly filleting knives, a pair of rib knives, a pair arranged behind them Knife for cutting free the back spokes and a pair behind the rib knives arranged upper ones that engage in the cuts made by the rib knives Herringbone guides, d u r c h marked that below the upper bone guides (41, 42) one with a slot (45) for the belly filleting knives (11, 12) cut-free pancakes (52), the vertebrae (51) of the spine of is arranged below supporting lower bone guide (43,44).

2. Machine according to claim 1, characterized in that the lower Bone guide (43, 44) is evasive against spring force.

3. Machine according to claims' and 2, characterized in that the knives (31, 32) for cutting free the back spokes (53) on the belly side of the upper ones Bone guides (41, 42) are arranged at an acute angle and through between them and protrude beyond their upper edges and the lower bone guides (43, 44) at least reach just behind the knives (31,32) interfaces.

The invention relates to a machine for filleting fish with a pair of belly filleting knives, a pair of rib knives, a pair behind them arranged knife for cutting free the back spokes and a pair behind the Rib knives arranged more engaging in the cuts made by the rib knives upper bone guides.

Such a machine can be used in a known manner for the production of Single fillets are used, but they can also be designed for the production of block fillets be.

Machines for the production of block fillets are preferred if the manufactured product e.g. B. is to be smoked or marinated. While processing of fish without lateral vertebral processes, such as herrings or mackerel the production of single fillets or block fillets known as butterfly does not Trouble. Problems especially arise when the fish are rigid sideways Have vertebral processes and their dimensions in the range of those of herrings lie.

From GB-PS 7 47 117 a method is already known in which after performing the belly fillet cuts and the rib cuts from the belly side of the fish from circular knives placed at an acute angle to one another by means of a pair the back spokes cut free while severing the lateral vertebral processes be, with a block fillet made in this way then by two in a row guided cuts individual fillets can be made.

This procedure has not been able to prevail because with larger ones Fish the undercut that occurs when making the back filleting cuts the eddy leads to an excessive loss of meat yield, but small fish are too strained due to insufficient leadership opportunities and none usable fillets or block fillets.

Now the DT-OS 20 59 835 already has one Arrangement on filleting machines known in which of the incisions made by the rib knives submerged panels have two or more straight, parallel hooked conveyors are arranged with the backbone and the lateral vertebral processes against the Hooks of the conveyor are to be pressed. That's enough for that there provided cutting free of the back spokes and separation of the fillets through over them arranged back filleting knife is not sufficient, but is for making the back filleting cuts unusable by severing the lateral vertebral processes because the bones are not are adequately managed.

Even with the one known from DT-PS 23 16 791, compared to the previous one improved design of the guide plates and one by resilient pressure rails supported, spiked chain existing transport and guide device an inevitable guidance of the bones is not guaranteed.

The invention is based on the object of the aforementioned Machine for filleting fish after making the rib cuts the backbone and inevitably guide the pancakes.

This object is achieved in that below of the upper bone guides one with a slot for the belly filleting knives cut open pancakes, supporting the vertebrae of the spine from below lower bone guide is arranged.

The successes that can be achieved in this way consist in the fact that it can be done without guidance the back spokes is possible by attacking the vertebrae and the bone structure inevitably to guide the pancreas, even with fish of different kinds Art. By the measure of claim 2 is not only a safe management of the skeleton fish of different sizes, but also different areas of the same Fish guaranteed.

By a machine according to claim 3, the production of Block fillets from fish with small, rigid vertebral processes are made possible.

An embodiment of the invention is shown schematically in the drawings and is described below. It shows F i g. 1 in axonometric Representation of a detail from a filleting machine and FIG. 2 a cross section by the knife intended for cutting free the back spokes and by a with its abdominal cavity in this fish.