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CN-122003176-A - Knife device, apparatus and method for slicing deheaded slaughtered fish with open abdominal cavity

CN122003176ACN 122003176 ACN122003176 ACN 122003176ACN-122003176-A

Abstract

The invention relates to a knife arrangement (10) for at least partially separating fillets (12) from a slaughtered fish (11) with an open abdominal cavity (13), comprising a transport device (21) with at least one transport element (22) for transporting the fish (11) in a transport direction (24) with a tail (46) facing forward in a transport plane (23), at least one knife unit (25) arranged along the transport direction (24) and configured for at least partially penetrating into the transport plane (23), wherein the knife unit (25) comprises a knife (26) and a corresponding knife abutment support (27) exerting a spring load by means of at least one spring element (28), wherein the knife unit (25) is configured and adapted for at least partially peeling apart the fillets (12) from a rib (20) surrounding the abdominal cavity (13) under yielding counterpressure of the spine (14), characterized in that the knife arrangement (10) comprises an adjusting device (29) connected with the knife unit (25), wherein the adjusting device (29) is configured and adapted for at least partially pivoting the knife (26) about at least one pivot axis (31, 33) or at least one counter-clockwise. The invention further relates to a corresponding device and a corresponding method for separating fillets (12) from fish (11).

Inventors

  • Milco Pagels
  • Valerie Klein

Assignees

  • 北欧机械制造鲁道夫巴德尔有限及两合公司

Dates

Publication Date
20260508
Application Date
20230928

Claims (20)

  1. 1. Knife device (10) for at least partially separating fillets (12) from a deheaded slaughtered fish (11) having an open abdominal cavity (13), comprising A transport device (21) with at least one transport element (22) for transporting the fish (11) in a transport direction (24) in a transport plane (23) with a tail (46) facing forward, At least one scraper unit (25) arranged along the transport direction (24) and configured for at least partly penetrating into the transport plane (23), wherein the scraper unit (25) comprises a scraper (26) and a corresponding scraper abutment support (27) applying a spring load by means of at least one spring element (28), wherein the scraper unit (25) is configured and adapted for at least partly exfoliating and separating a fillet (12) from a rib (20) surrounding the abdominal cavity (13) under yielding counter pressure of the spine (14), It is characterized in that The knife arrangement (10) comprises an adjustment device (29) connected to the knife unit (25), wherein the adjustment device (29) is configured and adapted for at least partially pivoting the knife (26) about at least one pivot axis (30, 31) clockwise or counter-clockwise (32, 33).
  2. 2. The knife arrangement (10) according to claim 1, characterized in that the adjusting device (29) comprises at least one adjusting element (35), in particular a drive element, wherein the at least one adjusting element (35) is configured and adapted to configure and adapt at least part of the pivotability of the blade (26) about the at least one pivot axis (30, 31) clockwise or counter-clockwise (32, 33).
  3. 3. The knife arrangement (10) according to claim 1 or 2, characterized in that the adjusting device (29) is adapted for setting a defined angle (36) and/or a defined angle curve (36) of the doctor blade (26) relative to the transport plane (23), in particular for the separation of the fish fillet (12) in a configuration of a predetermined cutting angle (36) and/or cutting angle curve (36).
  4. 4. A knife arrangement (10) according to one or more of claims 1-3, characterized in that the at least one pivot axis (30, 31) is configured and adapted to be substantially parallel to the transport plane (23).
  5. 5. The knife arrangement (10) according to one or more of claims 2 to 4, characterized in that the at least one adjusting element (35) is constructed and adapted as at least one pneumatic, hydraulic, electrical and/or electromagnetic actuating element, in particular a servo motor for controlling the pivotability of a part about the at least one pivot axis (30, 31).
  6. 6. The blade arrangement (10) according to one or more of claims 1 to 5, further comprising at least one sensing unit (37) located upstream of the scraper unit (25), which is constructed and adapted for sensing fish anatomy (39), in particular the height, length, width and/or abdominal position (13) of the fish (11).
  7. 7. The knife arrangement (10) according to claim 6, characterized in that the adjusting device (29) is adapted to set a partial pivotability of the blade (26) about the at least one pivot axis (30, 31) in accordance with the fish anatomy (39) sensed by the sensing unit (37).
  8. 8. The knife arrangement (10) according to claim 7, characterized in that the adjustability of the pivotability of the fish anatomy (39) takes place automatically or in an automated manner, wherein at least one variability of the doctor blade (26) about the at least one pivot axis (30, 31) is configured and adapted clockwise and/or counter-clockwise (32, 33) during the separation of fish fillets (12) in the transport direction (24).
  9. 9. The knife arrangement (10) according to one or more of claims 3 to 8, characterized in that the adjusting means (29) comprise at least one measuring element for measuring and/or sensing the angular position of the blade (26).
  10. 10. The knife arrangement (10) according to one or more of claims 3 to 9, characterized in that the at least one adjusting element (35) is configured and adapted to adjust the knife unit (25), in particular the knife (26), to a cleaning position, wherein the angle (36) of the knife (26) relative to the transport plane (23) is preferably between 10 ° and 150 °, preferably between 30 ° and 120 °, particularly preferably in the range between 45 ° and 90 °.
  11. 11. The blade arrangement (10) according to one or more of claims 1 to 10, characterized in that the spring force of the blade against the at least one spring element (28) of the support (27) is configured and adapted to be adjustable in a variable manner, in particular automatically or in an automated manner, in order to set a variable spring load during the separation of the fish fillet (12).
  12. 12. The knife arrangement (10) according to one or more of claims 1 to 11, further comprising at least one trimming element (41), in particular a driven or drivable knife element (42), which is constructed and adapted for trimming an area within the abdominal cavity (13) of the fish (11).
  13. 13. The knife arrangement (10) according to claim 12, further comprising at least one dressing element adjustment device (43) connected with the at least one dressing element (41), wherein the dressing element adjustment device (43) is configured and adapted for at least partially pivoting the dressing element (41) about at least one pivot axis (44) clockwise or counter-clockwise (32, 33).
  14. 14. The knife arrangement (10) according to claim 12 or 13, characterized in that the at least one trimming element (41) and the doctor unit (25) are constructed and adapted to correspond to each other, wherein the trimming is provided according to the fish fillet (12) to be separated.
  15. 15. Device (40) for at least partially separating fillets from a deheaded slaughtered fish (11) having an open abdominal cavity (13), comprising A transport device (21) with at least one transport element (22) for transporting the fish (11) in a transport direction (24) in a transport plane (23) with a tail (46) facing forward, At least one dorsal knife (45) for exposing the dorsal bone (16) up to the spinal column (14), At least one abdominal blade for exposing an abdominal bone (17) in a caudal region (46) to the spine (14), At least one separating blade constructed and adapted for separating the fillet (12) from the spine (14), wherein the joint meat left around the spine (14) by the at least one abdominal blade and the at least one back blade (45) is severed, It is characterized in that The device (40) comprises at least one blade arrangement (10) with at least one blade unit (25) which is constructed and adapted for at least partially exfoliating and separating a fillet (12) from a rib (20) surrounding the abdominal cavity (13) under yielding counter-pressure of the spine (14) according to one or more of claims 1 to 14.
  16. 16. Method for at least partially separating fillets (12) from a deheaded slaughtered fish (11) having an open abdominal cavity (13), comprising the steps of: Transporting the fish (11) in a transport direction (24) with the tail (46) facing forward in a transport plane (23) by means of a transport device (21) having at least one transport element (22), -Penetrating a doctor unit (25) at least partially into the transport plane (23), the doctor unit (25) comprising a doctor (26) and a corresponding doctor abutment support (27) applying a spring load by means of at least one spring element (28), -At least partially flaking off and separating the fillet (12) from the rib (20) surrounding the abdominal cavity (13) under yielding counter pressure of the spine (14) by means of the spatula unit (25), It is characterized in that The doctor blade (26) is pivoted at least partially about at least one pivot axis (30, 31) clockwise or counterclockwise (32, 33) by means of an adjustment device (29).
  17. 17. Method according to claim 16, characterized in that the doctor blade (26) is pivoted at least partially about the at least one pivot axis (30, 31) clockwise or counterclockwise (32, 33) by means of at least one adjusting element (35), in particular a drive element, comprising the adjusting device (29).
  18. 18. Method according to claim 16 or 17, characterized in that a defined angle (36) and/or a defined angle curve (36) of the doctor blade (26) with respect to the transport plane (23) is set by means of the adjusting device (29), in particular in order to separate the fish fillet (12) at a predetermined cutting angle (36) and/or cutting angle curve (36).
  19. 19. The method according to one or more of claims 16 to 18, characterized in that said at least one pivot axis (30, 31) is configured and adapted to be substantially parallel to said transport plane (23).
  20. 20. Method according to one or more of claims 16 to 19, characterized in that the fish anatomy (39), in particular the height, length, width and/or abdominal position (11) of the fish (11), is sensed by a sensing unit (37) located upstream of the scraper unit (26).

Description

Knife device, apparatus and method for slicing deheaded slaughtered fish with open abdominal cavity Technical Field The invention relates to a knife arrangement for at least partially separating fillets from a deheaded slaughtered fish having an open abdominal cavity, comprising a transport device having at least one transport element for transporting the fish in a transport direction in a tail-forward manner within a transport plane, at least one knife unit arranged in the transport direction and configured to penetrate at least partially into the transport plane in language, wherein the knife unit comprises a knife and a corresponding knife abutment support which is spring-loaded by means of at least one spring element, wherein the knife unit is configured and adapted for at least partially exfoliating and separating the fillets from a rib surrounding the abdominal cavity under a yielding counter pressure of the spinal column. The invention further relates to a device for at least partially separating fillets from slaughtered fish having an open abdominal cavity for removing heads, comprising a transport device with at least one transport element for transporting the fish in a transport direction in a transport plane in a tail-forward manner, at least one back knife for exposing back bone to the spine, at least one abdominal knife for exposing abdominal bone to the spine in the tail region, at least one separating knife configured and adapted for separating fillets from the spine, wherein the connection meat left around the spine by the at least one abdominal knife and the at least one back knife is severed. The invention further relates to a method for at least partially separating fillets from a deheaded slaughtered fish with an open abdominal cavity, comprising the steps of transporting the fish in a transport direction in a transport plane with the aid of a transport device with at least one transport element in a tail-forward manner, penetrating at least partially into the transport plane a scraper unit comprising a scraper and a corresponding scraper which is spring-loaded by means of at least one spring element against a support, and at least partially flaking the fillets from the rib surrounding the abdominal cavity under the yielding counter pressure of the spinal column by means of the scraper unit. Background Such knife equipment, devices and methods for separating fish fillets are well known in the art. The blade equipment used to separate the fish fillets is typically part of a complex apparatus and machine that contains other blade equipment. In the known device/method, in addition to the conventional abdominal slicer, back slicer and separating knife for cutting the released ribs, a corresponding scraping tool is integrated. These scraping tools have in particular a cutting edge which scrapes directly on the rib or vertebral protrusion. As a result, less fillet meat remains attached to the bone frame than rigid rib knives used in part in the same known devices, which improves yield. However, when using such a scraping tool, it is appropriate to make a separation cut in advance in order to separate the meat strips remaining on each side of the spine after the abdominal and back section cut and before the rib cut. This is necessary because a spatula in the plane of the lower edge of the back guide will peel the fillet off the rib. This requires complete separation of the fillet and results in more complex and special processing of the fish. Furthermore, it has been shown that this type of cutting sequence can lead to irregularities in the cutting guide, which impair the quality and yield of the slicing result. Moreover, it is difficult to ensure that the separated fillets can always be placed in a regular posture, e.g. with the skin facing down. However, this is necessary for smooth automatic further processing, such as for example peeling. In addition, using conventional equipment/equipment and methods, only a uniform variety or fish size can typically be processed. The scraping tools are provided for a specific fish type, so that the respective positions and distances between the tools used have to be chosen accordingly. When there is a large difference between the fish to be processed, the possibility of error increases, which may result in loss of yield and damage to the fish to be sliced. There are also known devices with scraping tools having wedge-shaped cutting edges and resilient abutment supports on both sides of the belly and back guides. These scraping tools are run just before reaching the end of the abdominal cavity of the fish in order to expose the fish fillet in tension to scraping forces. This results in smoother cut surfaces and improved yields. Furthermore, the fillets are not completely released by the separation cut after scraping so that they can be conveniently placed for automatic further processing. This known machine is suitable for use with various fish species, su