CA1078563A - Device for the oscillating movement of a knife bearing element of a machine for skinning fish fillets - Google Patents
Device for the oscillating movement of a knife bearing element of a machine for skinning fish filletsInfo
- Publication number
- CA1078563A CA1078563A CA285,819A CA285819A CA1078563A CA 1078563 A CA1078563 A CA 1078563A CA 285819 A CA285819 A CA 285819A CA 1078563 A CA1078563 A CA 1078563A
- Authority
- CA
- Canada
- Prior art keywords
- knife
- bearing element
- bearing
- return spring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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
- A22C25/17—Skinning fish
Landscapes
- 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
ABSTRACT OF THE DISCLOSURE
A device for creating an oscillating movement of a knife-bearing element in a machine for skinning fish fillets, wherein the device comprises a crank drive an eccentric crankpin of which carrying an idler ring, the knife bearing element is arranged essentially perpendicular to the axis of the crank drive, and one of the ends of the knife-bearing element is equipped with a sliding surface, an end face of which bears against the surface of the idler ring by the action of a return spring acting on the knife bearing element.
A device for creating an oscillating movement of a knife-bearing element in a machine for skinning fish fillets, wherein the device comprises a crank drive an eccentric crankpin of which carrying an idler ring, the knife bearing element is arranged essentially perpendicular to the axis of the crank drive, and one of the ends of the knife-bearing element is equipped with a sliding surface, an end face of which bears against the surface of the idler ring by the action of a return spring acting on the knife bearing element.
Description
`: \~
-~ 107~35~i3 The present invention relates to a device for producing an oscillating movement of a knife-bearing element in a machine for skinning fish fillets.
U.S. Patent 1,847,536 describes a machine for removing the rind from bacon, in which the knife is caused to oscillate by means of an eccentric crankpin and a connecting rod. This machine has the disadvantage that the drive makes it impossible to pivot the knife.
U.S. Patent 2,806,245 also describes a device for skinning fish fillets, in which the oscillating movement is transferred to the knife-bearing element, from an oscillator, by means of a coupling element arranged in extension of the a~is of the said knife-bearing element. Although this arrange-ment allows the knife-bearing element to rotate, it has the disadvantage that such rotation requires that frictional resistance be overcome. Furthermore, the play deve]oping between the bearing surfaces of the-coupling element not only produces a loud noise but also results in rapid wear.
It is the purpose of the invention to overcome the disadvantages of existing devices and to provide a device which imparts an oscillating movement to skinning knives, which operates continuously with little maintanance and lubrication, without readjustment, and with little noise, and which also allows the knife-bearing element to rotate about its axis unaffected by the forces of oscillation.
According to the present invention, there is provicled a dcvice Eor creating an 0scillating moveTnent oE a kniEe-bearillg element in a machine Eor skinnlng ish EilLets, wherein the device comprises a crank clrive an eccentric crankpin oE which carrying an idler riny, the kniEe bearing e]ement is arrangecl essentially perpendlcular to th~ axis o~ the crank drive, and one of the ends oE ;aid knife-beariny element is equippecl i"
:. . . . .
' " '' '" ' .
~lO'7~ ;3 with a sliding surface, an end face oE which bears agclinst the sur~ace of said idler ring by the action ~f a return sprin~
acting on said kniEe bearing element.
~ his means that the coupling elements require no adjustment or maintenance. Wear in the sliding or bearing surfaces does not produce noise or shorten the ]ife of the device. Furthermore, the skinning knife can be engaged very smoothly and quickly, which makes it posslble to keep the cutting losse~ small.
In order to keep as low as possible the resistance to the rotation of the knife-bearing element brought about by the oscillating drive, it is desirable for the surface of the ring to be cambered.
Mounting the ring upon the crankpin by means of a roller bearing is a simple way of allowing the oscillator to operate without being lubricated with fresh oil. -sy providing a thrust bearing between the return spring and the kniEe-bearing element or the abutment support-ing the free end thereof the resistance of the knife-bearing e]ement to rotation is reduced.
~ n example of embodiment of the invention is illustra-ted diagrammatically in the drawing attached hereto and is described hereinafter.
The figure, which does not show conventional componentS such as bearings, housings, drives, etc., is an -axonometrical representation of the device according to the invention in conjunction with a set o~ skinning rollers and a skinning knife associated therewith.
; .)!~
78~3 A skinning roller 1 rot~tes in a housing, not shown, about a skinning AXiS 2 and is driven by sultable means in the direction of arrow 3. Arranged obliquely below the said skinning roller is a clamping roller 4 which engages therewith and is caused to rotate, in the said housing, about a clampiny axis 5 parallel with the said axis 2, in the direction of arrow 6, and at the same peripheral velocity as skinning roller 1. Arranged parallel with axes 2 and 5 in the said housing is a knife-bearing element 7 mounted upon an axis 8 in such a manner that it can carry out simultaneously lateral movements in the axial direction and rotary movemen~s about its own axis. Secured to the said knife-bearing element, by means of screws, not shown, is a skinning kniEe 9 having a cutting edge 91. Knife-bearing element 7 carries at its left hand end a journal 12 smaller in diameter. Located at the transition is an engagement lever 10 carrying an engage-ment pin 11 at its free end, the said engagement pin running parallel with knife-bearing axis 8. Journal 12 carries a return spring 14~ one end of which bears, through a thrust bearing 13, against the hub of lever 10, while the other end 141 bears against an abutment, not shown, secured to the housing. Screwed to the right hand end of knife-bearing element 7 is a tappet 15, the right hand end of which has a hardened sliding surface 151. It is secured at its left hand end by means of a lock-nut. A crankshaft 17 rotates in a housing about an axis at right angles to axis 8 and is driven by suitable means, the said crankshaft carrying a flywheel 18 and an eccentric crankpin 20 adjacent thereto.
Crankshaft 17 may rotate in the direction of arrow 19, for example. Mounted upon crankpin 20, by means of a roller bearing, is a ring 21 having a cambered surface 211.
The device operates as follows. ~s it ro-ta-tes in its circular path, the eccentric, i.e. crankpin 20 compresses return spring 14 and ~orces knife-bearing element 7 to the left. At this time, surface 211 of ring 21 is bearing against end face 151 of tappet 15 and thus executes rolling movements in the vertical direction, the magnitude of these movements being governed by the diameter of the path of the crank, and crankpin 20 rotates in ring 21. When a fish fillet arrives, and skinning knife 9 is to be brought, with its cutting edge 91, near to the surface of skinning roller 1, e.g. by a resistance arising in the means driving skinning roller 1 and/or clamping roller 4, engagement pin 11 is used to pivot knife-bearing element 7 in an anti-clockwise direction. This causes thrust bearing 13 to rotate, while end face 151 of tappet 15 rotates, with a negligeable amount of friction, upon surface 211 of ring 21.
.
:
-~ 107~35~i3 The present invention relates to a device for producing an oscillating movement of a knife-bearing element in a machine for skinning fish fillets.
U.S. Patent 1,847,536 describes a machine for removing the rind from bacon, in which the knife is caused to oscillate by means of an eccentric crankpin and a connecting rod. This machine has the disadvantage that the drive makes it impossible to pivot the knife.
U.S. Patent 2,806,245 also describes a device for skinning fish fillets, in which the oscillating movement is transferred to the knife-bearing element, from an oscillator, by means of a coupling element arranged in extension of the a~is of the said knife-bearing element. Although this arrange-ment allows the knife-bearing element to rotate, it has the disadvantage that such rotation requires that frictional resistance be overcome. Furthermore, the play deve]oping between the bearing surfaces of the-coupling element not only produces a loud noise but also results in rapid wear.
It is the purpose of the invention to overcome the disadvantages of existing devices and to provide a device which imparts an oscillating movement to skinning knives, which operates continuously with little maintanance and lubrication, without readjustment, and with little noise, and which also allows the knife-bearing element to rotate about its axis unaffected by the forces of oscillation.
According to the present invention, there is provicled a dcvice Eor creating an 0scillating moveTnent oE a kniEe-bearillg element in a machine Eor skinnlng ish EilLets, wherein the device comprises a crank clrive an eccentric crankpin oE which carrying an idler riny, the kniEe bearing e]ement is arrangecl essentially perpendlcular to th~ axis o~ the crank drive, and one of the ends oE ;aid knife-beariny element is equippecl i"
:. . . . .
' " '' '" ' .
~lO'7~ ;3 with a sliding surface, an end face oE which bears agclinst the sur~ace of said idler ring by the action ~f a return sprin~
acting on said kniEe bearing element.
~ his means that the coupling elements require no adjustment or maintenance. Wear in the sliding or bearing surfaces does not produce noise or shorten the ]ife of the device. Furthermore, the skinning knife can be engaged very smoothly and quickly, which makes it posslble to keep the cutting losse~ small.
In order to keep as low as possible the resistance to the rotation of the knife-bearing element brought about by the oscillating drive, it is desirable for the surface of the ring to be cambered.
Mounting the ring upon the crankpin by means of a roller bearing is a simple way of allowing the oscillator to operate without being lubricated with fresh oil. -sy providing a thrust bearing between the return spring and the kniEe-bearing element or the abutment support-ing the free end thereof the resistance of the knife-bearing e]ement to rotation is reduced.
~ n example of embodiment of the invention is illustra-ted diagrammatically in the drawing attached hereto and is described hereinafter.
The figure, which does not show conventional componentS such as bearings, housings, drives, etc., is an -axonometrical representation of the device according to the invention in conjunction with a set o~ skinning rollers and a skinning knife associated therewith.
; .)!~
78~3 A skinning roller 1 rot~tes in a housing, not shown, about a skinning AXiS 2 and is driven by sultable means in the direction of arrow 3. Arranged obliquely below the said skinning roller is a clamping roller 4 which engages therewith and is caused to rotate, in the said housing, about a clampiny axis 5 parallel with the said axis 2, in the direction of arrow 6, and at the same peripheral velocity as skinning roller 1. Arranged parallel with axes 2 and 5 in the said housing is a knife-bearing element 7 mounted upon an axis 8 in such a manner that it can carry out simultaneously lateral movements in the axial direction and rotary movemen~s about its own axis. Secured to the said knife-bearing element, by means of screws, not shown, is a skinning kniEe 9 having a cutting edge 91. Knife-bearing element 7 carries at its left hand end a journal 12 smaller in diameter. Located at the transition is an engagement lever 10 carrying an engage-ment pin 11 at its free end, the said engagement pin running parallel with knife-bearing axis 8. Journal 12 carries a return spring 14~ one end of which bears, through a thrust bearing 13, against the hub of lever 10, while the other end 141 bears against an abutment, not shown, secured to the housing. Screwed to the right hand end of knife-bearing element 7 is a tappet 15, the right hand end of which has a hardened sliding surface 151. It is secured at its left hand end by means of a lock-nut. A crankshaft 17 rotates in a housing about an axis at right angles to axis 8 and is driven by suitable means, the said crankshaft carrying a flywheel 18 and an eccentric crankpin 20 adjacent thereto.
Crankshaft 17 may rotate in the direction of arrow 19, for example. Mounted upon crankpin 20, by means of a roller bearing, is a ring 21 having a cambered surface 211.
The device operates as follows. ~s it ro-ta-tes in its circular path, the eccentric, i.e. crankpin 20 compresses return spring 14 and ~orces knife-bearing element 7 to the left. At this time, surface 211 of ring 21 is bearing against end face 151 of tappet 15 and thus executes rolling movements in the vertical direction, the magnitude of these movements being governed by the diameter of the path of the crank, and crankpin 20 rotates in ring 21. When a fish fillet arrives, and skinning knife 9 is to be brought, with its cutting edge 91, near to the surface of skinning roller 1, e.g. by a resistance arising in the means driving skinning roller 1 and/or clamping roller 4, engagement pin 11 is used to pivot knife-bearing element 7 in an anti-clockwise direction. This causes thrust bearing 13 to rotate, while end face 151 of tappet 15 rotates, with a negligeable amount of friction, upon surface 211 of ring 21.
.
:
Claims (5)
1. A device for creating an oscillating movement of a knife-bearing element in a machine for skinning fish fillets, wherein the device comprises a crank drive an eccentric crankpin of which carrying an idler ring, the knife bearing element is arranged essentially perpendicular to the axis of the crank drive, and one of the ends of said knife-bearing element is equipped with a sliding surface, an end face of which bears against the surface of said idler ring by the action of a return spring acting on said knife-bearing element
2. A device according to claim 1, wherein the surface of the ring is cambered.
3. A device according to claim 1, wherein the ring is mounted upon the eccentric means by means of a roller bearing.
4. A device according to claim 1, wherein said return spring bears against a thrust bearing arranged on said knife-bearing element, or the abutment of said return spring.
5. A device according to claim 1, further comprising a journal carried at the other end of said knife-bearing element, said journal carrying a return spring one end of which bears through a thrust bearing against an engagement lever located at the transition of said knife-bearing element and said journal, the other end of said return spring bearing against an abutment secured to said housing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762642507 DE2642507C2 (en) | 1976-09-22 | 1976-09-22 | Knife drive for a machine for skinning fish fillets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1078563A true CA1078563A (en) | 1980-06-03 |
Family
ID=5988487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA285,819A Expired CA1078563A (en) | 1976-09-22 | 1977-08-30 | Device for the oscillating movement of a knife bearing element of a machine for skinning fish fillets |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1078563A (en) |
| DE (1) | DE2642507C2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2427789A1 (en) * | 1978-06-08 | 1980-01-04 | Wittig Jacques | Meat cleaning machine to strip skin, rind etc. - has reciprocating toothed roller to clean teeth of meat feed roller |
| EP0233454B1 (en) * | 1986-02-20 | 1994-04-06 | Nordischer Maschinenbau Rud. Baader Gmbh + Co Kg | Device for skinning fish |
| IT1238366B (en) * | 1989-10-18 | 1993-07-16 | Omar S N C Di Mario Baiocchi A | AUTOMATIC PEELER FOR NON-SQUAMOUS FISH. |
| SE503125C2 (en) * | 1994-09-05 | 1996-04-01 | Ubi Printer Ab | Device for printers for feeding web printing |
| DE10117304A1 (en) * | 2001-03-31 | 2002-10-10 | Nordischer Maschinenbau | Method and device for processing fish fillets |
-
1976
- 1976-09-22 DE DE19762642507 patent/DE2642507C2/en not_active Expired
-
1977
- 1977-08-30 CA CA285,819A patent/CA1078563A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2642507B1 (en) | 1977-09-01 |
| DE2642507C2 (en) | 1978-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |