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WO2002007525A1 - Traitement de crevettes, appareil et procede - Google Patents

Traitement de crevettes, appareil et procede Download PDF

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Publication number
WO2002007525A1
WO2002007525A1 PCT/US2000/040425 US0040425W WO0207525A1 WO 2002007525 A1 WO2002007525 A1 WO 2002007525A1 US 0040425 W US0040425 W US 0040425W WO 0207525 A1 WO0207525 A1 WO 0207525A1
Authority
WO
WIPO (PCT)
Prior art keywords
shrimp
cutting
housing
downstream
pair
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.)
Ceased
Application number
PCT/US2000/040425
Other languages
English (en)
Inventor
R. Douglas Shelton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shelton Corp
Original Assignee
Shelton Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shelton Corp filed Critical Shelton Corp
Priority to PCT/US2000/040425 priority Critical patent/WO2002007525A1/fr
Priority to AU2000271358A priority patent/AU2000271358A1/en
Publication of WO2002007525A1 publication Critical patent/WO2002007525A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C29/00—Processing shellfish or bivalves, e.g. oysters, lobsters; Devices therefor, e.g. claw locks, claw crushers, grading devices; Processing lines
    • A22C29/02—Processing shrimps, lobsters or the like ; Methods or machines for the shelling of shellfish
    • A22C29/021—Cleaning operations on shellfish, e.g. evisceration, brushing
    • A22C29/022—Deveining shellfish
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C29/00—Processing shellfish or bivalves, e.g. oysters, lobsters; Devices therefor, e.g. claw locks, claw crushers, grading devices; Processing lines
    • A22C29/02—Processing shrimps, lobsters or the like ; Methods or machines for the shelling of shellfish
    • A22C29/024—Opening, shelling or peeling shellfish
    • A22C29/026—Mechanically peeling and shelling shrimps, prawns or other soft-shelled crustaceans

Definitions

  • the present invention relates generally to mechanically processing shrimp, and more particularly to the automated removal of the vein and shell from a headless shrimp.
  • U.S. Patent No. 3,345,682 to Lapeyre discloses the need for providing a clean-cut operation which preserves the integrity of the shrimp meat by individually cradling and securing one shrimp for cutting through a dorsal side of the shrimp and ripping out the vein.
  • a shrimp processing apparatus useful in removing the sand vein from a desirable shrimp meat portion and peeling the shell therefrom.
  • the apparatus comprises a housing with a plurality of radially opposing conveyor roller pairs carried by the housing in a spaced relation and rotatably driven for conveying a headless shrimp from an upstream pair of conveyor roller pairs receiving the shrimp at an entrance end of the housing to a downstream roller pair for ejecting a processed shrimp therefrom.
  • Each roller of the downstream roller pair includes a plurality of teeth elements radially extending therefrom for penetrating side wall shell sections of a cut shrimp and peeling the side wall sections from a desirable meat portion of the shrimp.
  • a dorsal cutting blade is carried by the housing and is positioned for cutting a strip into a shrimp dorsal side along the longitudinal axis and exposing a sand vein in a cut shrimp.
  • a brush carried by the housing and positioned downstream the cutting blade, is used to sweep the sand vein from the cut shrimp as the cut shrimp is conveyed therepast through the conveyor roller pairs.
  • a ventral cutting blade is also carried by the housing and is positioned downstream the entrance end for cutting through a shrimp ventral side along the longitudinal axis thereof.
  • a method aspect of the invention includes the steps of removing the sand vein from a desirable shrimp meat portion and peeling the shell therefrom.
  • the method comprises the steps of receiving a shrimp at an entrance end of a plurality of rotatably driven conveyor roller pairs aligned in a spaced relation for conveying the shrimp therethrough, conveying the shrimp downstream the entrance end, cutting an elongate strip within a dorsal side of the shrimp for exposing a sand vein within a cut shrimp, sweeping the sand vein from the cut shrimp, peeling the shell away from a desirable meat portion of the cut shrimp, and ejecting the deveined and peeled shrimp from the housing.
  • the method will further include the step of cutting the shrimp through a ventral side thereof along the longitudinal axis thereof.
  • FIG. 1 is a perspective view of a shrimp peeling and deveining apparatus in accordance with the present invention
  • FIG. 2 is a partial cross-section view of a shrimp illustrating a desirable meat portion of the shrimp
  • FIG. 3 is a perspective view of a headless shrimp
  • FIG. 4 is a partial side elevation view of elements of FIG. 1 illustrating one embodiment of a shrimp conveying and processing queue of FIG. 1 ;
  • FIG. 5 is an end view of a conveyor roller pair carried at an entrance end of a housing of FIG. 1 ;
  • FIG. 6 is a partial transverse cross-section view of the headless shrimp of FIG. 3, illustrating a cut-away dorsal strip portion
  • FIG. 7 is an end view of a peeler roller pair carried at an exit end of the housing of FIG. 1 ;
  • FIG. 8 is a partial front view of a dual bladed cutting saw of the present invention.
  • FIGS. 9 and 10 are side and top views of an alternate peeler roller pair
  • FIG. 11 is a top view of an opened housing of FIG. 1 illustrating a processing of a shrimp being conveyed through the apparatus to its ejection as a processed shrimp;
  • FIG. 12 is a partial side view of an alternate embodiment of FIG. 4.
  • one preferred embodiment of the present invention includes a shrimp processing apparatus 10 useful in removing the sand vein 12 from a desirable shrimp meat portion 14 and peeling the shell 16 from the shrimp 18 after removal of the head 20.
  • the apparatus 10 herein described by way of example, comprises a housing 22 which, in a preferred embodiment receives the headless shrimp 20 at an entrance end 24, removes the sand vein, partially or fully peels away the shell as desired, and ejects it from the exit end 26.
  • the housing 22 comprises approximate outside dimensions of 15" length, 10" width, and 10" height, and weights approximately 25 pounds, which makes it particularly attractive for use in retail stores and restaurants.
  • восем ⁇ flexible conveyor rollers 28 are arranged as a plurality of radially opposing conveyor roller pairs 30, and are carried within the housing 22 in a spaced relation and rotatably driven using cooperating gears 32 driven by a motor 34 carried within the housing.
  • the motor in a preferred embodiment of the invention includes a 1/8 house power electric motor using 110 volt service, and a centrifugal clutch, rather than a typically heavier 1/4 hp motor.
  • the conveyor roller pairs 30 make direct contact with the shrimp 18 and convey the shrimp from an upstream pair 36 of conveyor rollers 28 which receive the shrimp at the entrance end 24 of the housing 22 to a downstream pair 38.
  • a dorsal cutting blade 40 is carried by the housing 22 and positioned downstream the entrance end 24 between the adjacent conveyor roller pair 36.
  • the dorsal cutting blade 40 cuts a 1/16" wide strip 42 into the shrimp dorsal side 44 along the longitudinal axis 46 of the shrimp 18 being conveyed past the dorsal cutting blade for providing an access opening 48 to a sand vein 12, as illustrated with reference to FIG. 6.
  • a ventral cutting blade 50 is also carried by the housing 22 and is positioned downstream the entrance end 24 between adjacent conveyor roller pairs 30, midstream roller pairs 52, as herein described by way of example, for making a cut 54 through a shrimp ventral side 56 along the longitudinal axis 46 of the shrimp 18 being conveyed therepast.
  • the dorsal and ventral cutting blades 40, 50 in combination, cut through the shell 16 of the shrimp 18 to be severed and provide opposing left and right shell sections 58, 60.
  • a brush 62 is carried by the housing 22 and is positioned downstream the dorsal cutting blade 40, between adjacent conveyor roller pairs 30.
  • the brush 40 comprises a rotating cylindrical brush which sweeps into the access opening 48 in the shrimp dorsal side 44 and sweeps the sand vein 12 therefrom as the shrimp 18 is conveyed past the rotating brush 62 through the conveyor roller pairs 30.
  • the headless shrimp 18 is deveined and has its shell severed along the dorsal side 44, and optionally as desired, severed along its ventral side 56, as above described by way of example.
  • the left and right shell sections 58, 60 still adhere to the desirable, now deveined, meat portion 14, as the shrimp 18 is further conveyed toward the exit end 26 of the housing 22 and into peeler rollers 64 arranged as an opposing peeler roller pair 66.
  • a water line 29 is provided for directing water to various selected areas of the housing 22 between the entrance and exit ends 24, 26 for flushing out processing portions of the housing.
  • the opposing peeler roller pair 66 carried by the housing 22, is rotatably driven by the drive gears 32 and motor 34, earlier described, and are in a spaced relation for receiving the shrimp 18 therebetween.
  • the peeler roller pair 66 is positioned downstream the conveyor roller pairs 30 for receiving the deveined and cut shrimp 18 therefrom.
  • each peeler roller 64 includes a plurality of teeth elements 68 radially extending from a cylindrical shaped roller body 70 sufficiently pointed for penetrating the shrimp shell 16.
  • the peeler roller pair 66 receive the shrimp and penetrate the left and right shell sections 56, 60 to cause the sections to be pulled away from the desirable meat portion 14 under the action of the counter rotation rollers 64 for peeling the shrimp and ultimately ejecting the deveined and peeled shrimp out the exit end 26 of the housing 22.
  • the motor 34 and associated drive gears 32 provide drive means that are conveniently carried by the housing 22, and are operable for rotating the roller pairs 30, 66 and blades 40, 50.
  • the dorsal blade 40 may cut the strip 42 into multiple fragments or as preferred, make a clean 1/16" strip using a dual blade arrangement for providing the strip 42 described with reference again to FIG. 6. Such a cut is achieved using the dual blade assembly 72 as illustrated, by way of example, with reference to FIG. 8.
  • the dorsal cutting blade 40 comprises a coaxially spaced pair of cutting blades 40a, 40b separated by a spacer 74 having a lesser diameter (1/4" preferred) than the blades for limiting a depth of cut 76 for the dual blade assembly 72, and a thickness of approximately 1/16".
  • a pair of hubs 75 mounted on the outside of each blade 40a, 40b are effective in securing the blade 40 during rotation.
  • the hubs 75 provide a 1/8" depth of cut 76 which has been shown to be effective and avoids damage to the meat, while a 1/16" strip 42 provides an effective access for sweeping out the sand vein, as earlier described.
  • the dorsal cutting blade 40 is movably attached to the housing 22 by a lever arm 78 hinged to the housing and the axle of the dorsal blade for biasing toward the shrimp 18 and moveable along the outside contour of the shrimp during cutting thereof.
  • both the rotating cutting blades 40, 50 each comprise a saw tooth blade, sharpened to a knife styled edge for providing minimal damage to the meat portion 14 contacted by the blades.
  • the dorsal cutting blade 40 is adjustable for distance and bias toward to shrimp using a tensioned spring. This becomes useful with large shrimp size differences.
  • the rotating ventral cutting blade 50 does not "float” as does the dorsal blade.
  • the vertical position of the ventral blade 50 is adjustable, but is held at a preset and fixed axis location, as desired by the user.
  • the rotating brush 62 is 1.5" in diameter and comprises nylon bristles. In a preferred embodiment, the brush 62 is rotated at approximately 3000 rpm.
  • the brush is adjustable toward and away from the shrimp and includes a preselected spring tension for biasing the rotating brush against the cut shrimp without damaging the meat.
  • a preferred embodiment of the flexible conveyor rollers 28 comprises rollers formed as hollow molded rubber rollers having side walls sufficiently flexible for embracing the shrimp about its body between the conveyor roller pairs 30 and conveying the shrimp downstream from conveyor roller pair to an adjacent conveyor roller pair and finally into the peeling roller pair 66, as earlier described.
  • Each of the conveyor rollers herein described have a wall thickness of approximately 1/8" and are made of a A-40 durometer rubber. Such rollers have proven to be flexible enough to accommodate shrimp ranging in size from 100 count to 10 count per pound.
  • a preferred embodiment of the conveyor rollers 28 includes a plurality of ribs 76, radially extending therefrom, spaced from each other about the roller peripheral surface 78, and aligned generally parallel to each other and to the axis of the roller 28.
  • one embodiment of the peeler rollers 64 includes a plurality of axially spaced raised peripheral portions 80, with each raised peripheral portion having the teeth elements 68 formed as pins 82 radially extending therefrom.
  • the peeler rollers 64 comprise a plurality of circular saw styled discs 84 in an axially spaced arrangement, separated by a gap formed by the alternate stacking of a spacer 86 of lesser diameter that the discs 84.
  • the pins 82 and the teeth 86 radially extending from each roller of the peeler roller pair 66 in a forwardly angled orientation away from a radial line 88 extending from the axis of the peeler through the base of each tooth and pin.
  • the teeth elements 68 are angled toward a direction of rotation 90 of the roller 64, mirror images for opposing each peeler roller in the peeler roller pair 66.
  • a stripper plate 92 is operable with the peeler roller pair 66 for stripping debris remaining on the peeler rollers 64 after stripping the shell from the shrimp.
  • the stripper plate 92 includes a plurality of comb styled openings 94 for receiving the plurality of teeth elements 68 through the openings and close to the peeler roller body 70 to remove the debris from the peeler rollers 64 during their rotation.
  • the peeler rollers 64 are made from a hard plastic having a diameter of approximately 1.5". As illustrated with reference again to
  • FIGS. 7 and 9 is preferred to multiple discs 80, 84 with teeth elements 68 that protrude from the body 70 by approximately 3/32" on a 5 degree forward angle 96.
  • a stainless steel spring 98 extends between the opposing peeler rollers 64 for biasing the rollers against the shrimp.
  • each peeler roller 64 is mounted on a lever arm 100 hinged to the adjacent and most downstream conveyor roller pair 38. The spring 98 is connected between the lever arms 100. As a result, the peeler rollers 64 will separate and contract as demanded by the size of the shrimp being conveyed between them.
  • the movement of the peeler roller pair 66 on the lever arm 100 allows for a smooth transition from the conveyor roller pairs 30 to the peeler roller pair 66.
  • a desired processing of the shrimp 18 entering the housing 22 has its vein removed and its shell 16 severed and removed from the desirable meat portion 14.
  • the apparatus 10 includes an arcuate entrance ramp 102 adjustably hinged at the housing entrance end 24 for guiding the shrimp 18 into a desirable orientation prior to cutting by the dorsal cutting blade 40.
  • the upstream conveyor roller pair 36 comprises a shoulder 104 for assisting in guiding the shrimp 18 in combination with the entrance ramp 102.
  • the rear shell section illustrated with reference again to FIG. 3, may not be cut when desired.
  • a contour within the entrance ramp 102 corrects for such variations.
  • the ramp 102 will include a longitudinally extending groove 103 having width and depth dimensions ranging from approximately 3/8" to approximately 1/2" depending on the size of shrimp.
  • the narrower tail of the shrimp will ride within the groove, while the wider forward body will ride above it.
  • This will allow the dorsal cutting blade 40 to be set for cutting as much of the shrimp shell as desired, sometimes purposely not cutting the rearmost shell section 106 when a "tail-on" shrimp is desired, and cutting the rearmost shell section when a "tail-off shrimp is desired.
  • These tail-off and tail-on options are also available without the use of the ramp by adjusting the height of the dorsal blade 40.
  • the processed shrimp will be ejected from the housing with the shell attached only at the tail for easy manual removal of the shell from the shrimp for cooking and serving the desirable deveined and peeled shrimp.
  • peeling rollers 64 can be removed for yet another embodiment where peeling of the shrimp 18 is not desired.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Meat And Fish (AREA)

Abstract

La présente invention concerne un processeur (10) pour crevettes qui retire la veine de sable (12) indésirable de la chaire de la crevette (18) et qui retire une carapace (16) découpée de façon sélective. Ce processeur (10) pour crevettes comprend une série de paires de rouleaux (28) de transporteur alignées, portées dans leur boîtier et espacées de façon à transporter une crevette (20) étêtée d'une extrémité (24) entrée de ce boîtier (22) à une extrémité sortie (26) située en aval. Une lame (40) de découpe de type dents de scie à mouvement rotatif très rapide qui possède une arête vive est portée par le boîtier et positionnée en aval de l'extrémité entrée, entre deux paires de rouleaux de transporteur contiguës, de façon à découper une bande (42) d'une largeur de 1/16'' dans la partie dorsale de la crevette le long de l'axe longitudinal afin de découvrir la veine de sable. Combinée à la découpe de cette bande dorsale, une seconde lame (50) de découpe, coupe le côté ventral de la crevette afin de sectionner la carapace dans ses parties opposées. Une brosse (62) positionnée plus en aval balaye la veine de sable (12) sur la crevette coupée. Des rouleaux (64) de dépiautage opposés reçoivent ensuite la crevette, des dents (68) sortant de chaque rouleau pénètrent les partie (58, 60) de la carapace sectionnées, tandis que la crevette coupée est transportée en aval, arrachent ces parties de carapace de la chaire recherchée de la crevette, et éjectent cette crevette sans veine de sable et dépiautée hors du boîtier.
PCT/US2000/040425 2000-07-19 2000-07-19 Traitement de crevettes, appareil et procede Ceased WO2002007525A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2000/040425 WO2002007525A1 (fr) 2000-07-19 2000-07-19 Traitement de crevettes, appareil et procede
AU2000271358A AU2000271358A1 (en) 2000-07-19 2000-07-19 Shrimp processing apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/040425 WO2002007525A1 (fr) 2000-07-19 2000-07-19 Traitement de crevettes, appareil et procede

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104222250A (zh) * 2014-09-28 2014-12-24 南通宝泰机械科技有限公司 去虾壳生产线及虾仁加工工艺
WO2017007598A1 (fr) * 2015-07-09 2017-01-12 Laitram, L.L.C. Déveineur de crevettes doté de lames réglables
CN110235928A (zh) * 2019-06-24 2019-09-17 秦建华 一种小龙虾去壳装置
US11980199B2 (en) 2020-02-07 2024-05-14 Nova-Tech Engineering, Llc Shrimp processing apparatus and methods
US12458034B2 (en) 2020-02-07 2025-11-04 Nova-Tech Engineering, Llc Shrimp processing apparatus and methods

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE24115E (en) 1956-01-31 Shrimp peeling and veining machine
US2760224A (en) 1954-10-06 1956-08-28 Walter L Hennelly Laterally resiliently displaceable stop for relatively movable elements
US3040374A (en) 1959-05-04 1962-06-26 Miller Nikoli Shrimp peeling deveining and tail removing machine
US3345682A (en) 1965-05-25 1967-10-10 Laitram Corp Process for individually treating headless shrimp
US3787928A (en) 1972-06-19 1974-01-29 E Domecki Shrimp splitting and cleaning apparatus
US3947921A (en) * 1973-06-18 1976-04-06 Massachusetts Institute Of Technology Apparatus for cleaning marine animals of the mollusk type
US4393543A (en) 1981-06-12 1983-07-19 Martin Roger C Shrimp processing and handling apparatus
US4745660A (en) * 1987-07-20 1988-05-24 Gregor Jonsson Associates, Inc. Universal shrimp peeling machine
CA2276553A1 (fr) * 1998-06-29 1999-12-29 Shelton Corporation Appareil et methode de traitement des crevettes
US6129621A (en) * 1999-09-29 2000-10-10 Shelton Corporation Shrimp deveining apparatus and method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE24115E (en) 1956-01-31 Shrimp peeling and veining machine
US2760224A (en) 1954-10-06 1956-08-28 Walter L Hennelly Laterally resiliently displaceable stop for relatively movable elements
US3040374A (en) 1959-05-04 1962-06-26 Miller Nikoli Shrimp peeling deveining and tail removing machine
US3345682A (en) 1965-05-25 1967-10-10 Laitram Corp Process for individually treating headless shrimp
US3787928A (en) 1972-06-19 1974-01-29 E Domecki Shrimp splitting and cleaning apparatus
US3947921A (en) * 1973-06-18 1976-04-06 Massachusetts Institute Of Technology Apparatus for cleaning marine animals of the mollusk type
US4393543A (en) 1981-06-12 1983-07-19 Martin Roger C Shrimp processing and handling apparatus
US4745660A (en) * 1987-07-20 1988-05-24 Gregor Jonsson Associates, Inc. Universal shrimp peeling machine
CA2276553A1 (fr) * 1998-06-29 1999-12-29 Shelton Corporation Appareil et methode de traitement des crevettes
US6129621A (en) * 1999-09-29 2000-10-10 Shelton Corporation Shrimp deveining apparatus and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104222250A (zh) * 2014-09-28 2014-12-24 南通宝泰机械科技有限公司 去虾壳生产线及虾仁加工工艺
CN104222250B (zh) * 2014-09-28 2016-04-27 南通宝泰机械科技有限公司 去虾壳生产线及虾仁加工工艺
WO2017007598A1 (fr) * 2015-07-09 2017-01-12 Laitram, L.L.C. Déveineur de crevettes doté de lames réglables
US9622494B2 (en) 2015-07-09 2017-04-18 Laitram, L.L.C. Shrimp deveiner with adjustable blades
CN110235928A (zh) * 2019-06-24 2019-09-17 秦建华 一种小龙虾去壳装置
CN110235928B (zh) * 2019-06-24 2022-02-22 秦建华 一种小龙虾去壳装置
US11980199B2 (en) 2020-02-07 2024-05-14 Nova-Tech Engineering, Llc Shrimp processing apparatus and methods
US12089605B2 (en) 2020-02-07 2024-09-17 Nova-Tech Engineering, Llc Shrimp processing apparatus and methods
US12458034B2 (en) 2020-02-07 2025-11-04 Nova-Tech Engineering, Llc Shrimp processing apparatus and methods

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