WO2014104888A1 - Dispositif de décorticage et procédé de décorticage de crevettes - Google Patents

Dispositif de décorticage et procédé de décorticage de crevettes Download PDF

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Publication number
WO2014104888A1
WO2014104888A1 PCT/NL2013/050955 NL2013050955W WO2014104888A1 WO 2014104888 A1 WO2014104888 A1 WO 2014104888A1 NL 2013050955 W NL2013050955 W NL 2013050955W WO 2014104888 A1 WO2014104888 A1 WO 2014104888A1
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WO
WIPO (PCT)
Prior art keywords
peeling
shrimps
clamping
shrimp
tail
Prior art date
Application number
PCT/NL2013/050955
Other languages
English (en)
Inventor
Bernardus Ludgerus Lubertus Hijlkema
Henricus Hubertus VAN DER WIEL
Original Assignee
Gpm Seafood B.V.
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 Gpm Seafood B.V. filed Critical Gpm Seafood B.V.
Publication of WO2014104888A1 publication Critical patent/WO2014104888A1/fr

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Classifications

    • AHUMAN NECESSITIES
    • A22BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22CPROCESSING MEAT, POULTRY, OR FISH
    • A22C29/00Processing shellfish or bivalves, e.g. oysters, lobsters; Devices therefor, e.g. claw locks, claw crushers, grading devices; Processing lines
    • A22C29/02Processing shrimps, lobsters or the like ; Methods or machines for the shelling of shellfish
    • A22C29/024Opening, shelling or peeling shellfish
    • A22C29/026Mechanically peeling and shelling shrimps, prawns or other soft-shelled crustaceans

Definitions

  • the present invention relates to a shrimp peeling device for peeling shrimps.
  • the present invention has for its object to reduce or wholly obviate the existing problems.
  • the invention provides for this purpose a peeling device for peeling shrimps, the device comprising:
  • Objects can be peeled fully automatically with the peeling device according to the invention.
  • the objects are preferably shrimps. It is also possible to perform the peeling at a desired location, for instance close to the port, distribution centres or even on board a ship. It is also possible to peel types of shrimp other than Crangon shrimp, as well as peeling other crustaceans and/or shellfish. With the peeling device according to the invention the shrimp are peeled under controlled hygienic conditions. In addition, the transport of the objects is minimized, which contributes toward a cost-effective and more environmentally-friendly processing.
  • the holder comprises a clamping device for clamping the object.
  • the clamping device achieves that the objects, such as shrimps, can preferably be held individually during the peeling process.
  • the clamping device comprises adjusting means for adjusting a clamping force on the object.
  • the adjusting means makes it possible to adjust a clamping force.
  • the clamping can hereby be adjusted to the requir ement depending on the object and the status of the peeling process.
  • the adjusting means preferably comprise a control for controlling, during peeling, the clamping force and/or rotation speed with which the holder rotates around the rotation axis.
  • the peeling device comprises a singulator.
  • a singulator objects supplied in a tray are singulated or individualized for further processing in the peeling device, and particularly in the centrifuge.
  • the peeling device comprises an orienting apparatus for orienting the objects.
  • the preferably singulated objects arc carried in an aligned and preferably specific manner into the holder.
  • the orienting apparatus is preferably provided with blowing means for changing the orientation of the objects.
  • the peeling device comprises a centrifuge buffer.
  • Providing a centrifuge buffer enables controlled placing of an object in the holder. A batch-wise peeling is possible using the buffer. The effectiveness is hereby further increased.
  • the invention also further relates to a method for peeling shrimps, comprising of supplying shrimps and peeling the shrimps using a device as described and shown in the present application.
  • the invention comprises all combinations of aspects and measures for peeling particularly shrimps as described in the foregoing description and/or shown in and elucidated with the accompanying figures.
  • FIG. 1 and 2 show a view of the supply and singulation of the shrimps in combination with the peeling device
  • FIG. 3 shows a detail view of the singulation of figures 1 and 2;
  • FIG. 4-7 show views of a shrimp being taken up with the device according to the invention.
  • the peeling device is further elucidated on the basis of a number of process steps. This begins with the supplying of the shrimps, wherein the shrimps are also singulated and oriented. The peeling centrifuge according to the invention is then further discussed.
  • the first operation relates to the controlled depositing of the shrimps into an elongate, funnel-like buffer (figure 1, station b).
  • the brown circles represent a certain quantity of shrimps; the smaller circles slightly smaller numbers.
  • the subsequent operation preferably relates to orienting the shrimps with the back facing forward in the direction of the pattern of movement.
  • This is realized by mounting the vibrating plate on one or more vibrating tables in the form of for instance vibrating magnets.
  • the orienting effect intended with the vibrating plate can be enhanced by having, in combination therewith, the most uniformly controlled possible airflow (figure 1 , station e and figure 3) flow along the full width of the vibrating plate over the shrimps in the direction opposite to the movement of these shrimps.
  • This airflow has the aerodynamic effect on the droplet form of the shrimps that the backs of the shrimps will be positioned still better in the direction of the airflow.
  • the following operation is the individualizing/singulating of the shrimps so that these shrimps can be introduced one at a time into the clamping means required for the peeling process.
  • This individualizing of the shrimps is achieved in that these shrimps drop with their back first into one of the holes of one or more rows of holes of for instance 16 mm (one row in the figures) positioned at the end of the vibrating plate (see figure 3). These holes are arranged a short distance from each other, wherein the holes of the different rows are optionally offset half a centre-to-centre distance relative to each other.
  • the step following individualizing is that the shrimps passing over the rows of holes without dropping into one of the holes will fall at the end of the vibrating plate into a conveyor belt arranged at this position (figure 1 , station f) and be guided via a discharge system to the funnel-like buffer.
  • the following process is the successive placing of the shrimps so that these shrimps are guided into a trough-like transport channel provided with vibrating magnets (figure 1 , station g) (see figure 3). This is achieved in that the majority of the shrimps, owing to their positioning on the vibrating plate with their back in the direction of the pattern of holes, drop with their back first into the holes and only one individual shrimp can fall here through each individual hole at a time.
  • Arranging guide profiles (h) on the underside of the holes ensures that the shrimps ar e guided with their backs in the conect orientation into the transport channels placed thereunder and also come into contact with the least possible force with the shrimp or shrimps possibly already present at this position.
  • the profile of the transport channel in combination with the positioning of the outflow of the guide profiles is embodied such that accumulation of shrimps is hereby prevented as far as possible.
  • a clamping provision (j) will clamp the head of this shrimp before the ring is moved upward, as a result of the upward movement of the ring this shrimp will be lifted by this ring out of the relevant transport channel (see figure 7), and then be unloaded into a discharge channel arranged for the purpose or in other manner, and can be guided back again to buffer b.
  • For the purpose of performing this operation means are arranged which temporarily hold parts of the shrimps present in the transport channels in a desired position during the above described operation by for instance pressing on or restraining them. The same applies to those parts of the shrimps present in the transport channels which are situated at the end of the transport channels for the purpose of enabling the tail parts of the shrimps to be placed into the clamping means of the centrifuge buffers.
  • each shrimp has to be positioned for this purpose as close to a right angle as possible relative to the head of this shrimp.
  • a fork-like clamping device see figures 8-16, which during clamping centres the tail part of the shrimp manoeuvred into this position and fixes the body of this shrimp in this position (see herefor the sections a and b of figures 9 and 10).
  • the airflows (1 in figures 10/12) flowing out of the air outflow openings arranged in the fork parts can then move the tail part in the direction of this right-angled position.
  • a wire or rod device (m) positioned in transverse direction then ensures that the tail parts of all shrimps situated simultaneously in this position of the transport channels are carried into a position as close as possible to a right angle relative to the head parts, whereby the associated clamping means of the centrifuge buffers (n) can enclose and subsequently clamp these tail parts.
  • the wire or rod devices will be moved into the zero position and the fork-like clamping devices will be opened, after which all these shrimps are lifted out of the transport channels by the above stated clamping means.
  • all shrimps have to be introduced during the peeling procedures to be performed into this centrifuge device using a uniform clamping device.
  • the shell the shell parts, skeleton or carapace of the shrimp is separated from the pith, the meat of the shrimp.
  • the fully automatic peeling of shrimps referred to as the peeling procedure, according to the methods described in this application takes place on the basis of utilizing the centrifugal forces produced by a centrifuge device.
  • the first type consists of a centrifuge device with which the peeling procedure is performed directly after filling with the shrimps.
  • the second type consists of a peeling station constructed from a frame with drive and control in combination with a certain number of centrifuge buffers (o, shown in figures 1 and 2).
  • a centrifuge buffer can be described as a cylindrical frame in which an x-number of extendable sets of two clamping strips are accommodated in longitudinal direction.
  • a centrifuge buffer is positioned in this embodiment transversely above a certain number of adjacently placed transport channels such that, of the shrimps present in the transport channels, the tail parts brought into the right-angled position are enclosed by extending one set of clamping strips as shown in figure 9, and are clamped in these clamping strips, see figures 12 and 13.
  • this set of clamping strips is retracted into the centrifuge buffer, after which the following set of clamping strips can be positioned in this filling position by rotating the centrifuge buffer, and this filling procedure can be repeated until all clamping strips have been filled with shrimps.
  • the relevant centrifuge buffer is then set in the wait position, after which an empty centrifuge buffer can take its place in order to be filled.
  • centrifuge buffer Once a centrifuge buffer has been placed in the vertical position from the wait position in the peeling station, this centrifuge buffer is fixed to the frame, and all provisions for perfect operation of the peeling procedure, such as the operating members, energy lines and detection provisions, are thereby simultaneously coupled and connected. Operations performed during the peeling procedure in the peeling centrifuge will be energized and activated here as far as possible by external actions. It will thus be possible to perform an uncoupling action, for instance for adjusting the position of all clamping strips in one operation by pressing aside a ring mounted on the peeling centrifuge by means of three bearings mounted displaceably on the fixed world.
  • electric slide contacts can be utilized for energy supply, data traffic and so on.
  • optical data traffic for instance via infrared, and possibly also wireless communication means will be utilized for perfect control and monitoring of the peeling procedure. As soon as these operations have taken place, the peeling procedure can be started by switching on the drive and allowing the rotation speed of the peeling centrifuge to increase.
  • the head is attached very flexibly to the abdominal part carapace via several point connections, while the links of this carapace, while being slightly stronger, are nevertheless connected
  • the tail part carapace of the shrimp is extremely strong and robust.
  • a relatively great pressure force can therefore be exerted on the tail part carapace without it breaking or tearing, and the flesh present therein is hardly damaged, while the flesh can however in this way be clamped and secured in the tail part carapace.
  • a sufficiently great pulling force in the direction of the head
  • a sufficiently great pulling force can also be exerted on the tail part for the peeling process without the connection between the tail part carapace and these tail fans being broken.
  • centrifugal force has a number of highly attractive aspects for the development of an optimum shrimp peeling process.
  • the force "engages" at the centre of gravity of a mass or a collection of masses without pressure force having to be exerted on these masses in order to obtain sufficient friction for the necessary engagement, or without grip on or at these masses engagement having to be obtained in other manner.
  • This has the result that aspects such as shape, dimensioning, nature, the degree of moistness etc. of the carapace or the flesh of the shrimp are in principle no longer of importance. Even a shrimp with a "softened” head can be properly peeled via utilization of this force.
  • the centrifugal force exerted on this mass is directly proportional to the rotation speed of the centrifuge.
  • the desired centrifugal force can hereby be obtained in very precise manner, and there is moreover a direct relation between the increasing or decreasing rotation speed of the centrifuge and the increase or decrease in the centrifugal force on this mass.
  • the gradualness with which such an increasing or decreasing centrifugal force can be generated is of extremely great importance in "pulling apart" a connection, a link. This is because no more force is ever exerted than is necessary to have the desired action take place, and no excessive exertion of force therefore takes place during peeling of a shrimp when the shrimp is arranged in the correct straightened position.
  • a first aspect relates to the fact that the shrimp is position as straight as possible because the centrifugal force engages on the centre of gravity of the flesh and in such a position the flesh appears to encounter the least possible resistance from the carapace. This particularly the case when during the first action of the centrifuge peeling process only the head of the shrimp is removed.
  • a second aspect relates to the fact that no or substantially no (pressure) force is exerted on the tail part carapace and the abdominal part carapace possibly still connected thereto.
  • a third aspect relates to the fact that the legs of the shrimp have sufficient freedom of movement to be able to move (forward and backwar d) unimpeded.
  • the most ideal position for the centrifugal peeling will be a (slightly) over-straightened position. This may have something to do with the release of the flesh from the "attachment" to the "legs" of the shrimp. It is likely that, when the abdominal part carapace is still connected to that of the tail part, the legs must therefore possibly have sufficient space for movement so as to be able to move freely in order to give the flesh the possibility of being able to leave the car apace via the peeling method described here.
  • the clamping block being configured such that, in addition to fixedly clamping the tail fans, the tail part can be clamped symmetrically via two (or more) (sliding) parts, whereby the flesh is secured in this tail part.
  • the head and the abdominal part have to be enclosed such that there is substantially no undesired and excessive application of force, but however such that it is guaranteed that the shrimp is manoeuvred into the correct straightened position and is also held in this straightened position during centrifuging.
  • the collecting and discharge device of this centrifuge can consist of two (or more) strictly separated drum-like vibrating gutters, one vibrating gutter of which is intended solely for the purpose of collecting the flesh. This avoids (as far as possible) the flesh being mixed with other remnants of the shrimps. The flesh thus comes into direct contact only with this vibrating gutter during the whole peeling process, whereby the occurrence of (bacterial) contamination of the flesh is prevented as far as possible during the peeling process.
  • the device is provided with a centrifuge which is equipped such that the operations necessary for the transition from action 1 to action 2 and from action 2 to action 3 can be carried out.
  • the technique of individualizing, positioning and orienting the shrimps as specified above can also be utilized for the subsequent peeling of shrimps according to a second embodiment of the peeling device, the so-called clamping disc shrimp peeling technique.
  • each shrimp from the transport channel of the feed unit is inserted with the tail tip into one of the tail tip clamps (10) of a vertically positioned clamping disc 11 and clamped fixedly.
  • this clamping take place such that only the tip of the tail will be clamped while positioned as completely and perfectly as possible in the associated tail tip clamp, the following straightening and insertion procedure will be performed.
  • the shrimp is clamped laterally with clamping means (1) at the end position of the transport channel and thereby centred, see figure 18.
  • clamping means (1) Arranged in straightening pin (2) are air outflow openings through which flowing airflows move the tail part of the shr imp (8) sufficiently upward and whereby the straightening pin can be pushed under the tail part, see figure 19.
  • Air outflow openings can also be arranged in clamping means (1) or directly thereabove through which flowing airflows will move the tail part sufficiently upward and whereby the straightening pin situated above one of the clamping means can be pushed under this tail part.
  • a pin clamp (3) situated above the transport channel and provided with at least four pins is displaced downward, whereby the four pins (4) are carried into recesses in the clamping means (figure 21) such that two pins are located on each side of the shrimp. These pairs can be moved toward each other, whereby the body of the shrimp is clamped fixedly by this pin clamp.
  • the so-called tail fork (7) is also situated on the pin clamp. Simultaneously with the downward movement of the pin clamp the tail part of the shrimp (8) is held by this tail fork, brought into horizontal position and centred by the triangular form of the tail fork, see figure 21, followed by the retraction of the straightening pin and the displacement of this straightening pin to its zero position, see figure 22.
  • the shrimp then clamped by the pin clamp is then free to be displaced forward to the tail tip detection position, see figure 23.
  • This positioning detection can be performed using the line detection means (9) arranged at that location. This action is of essential importance for performing the subsequent peeling process as perfectly as possible in order to thereby enable positioning of the tail tip exactly in the position of figure 23 and thereby eliminate the adverse positioning effects resulting from the length differences in the shrimps, and then displacement over a fixed distance applicable for every shrimp, the displacement from figure 23 to figure 24, for the purpose of inserting the tail tip in the associated tail clamp.
  • tail tip clamp (10) of clamping disc (11) As soon as the relevant tail tip clamp (10) of clamping disc (11) is in position and has come sufficiently to a stop, the tail tip can be placed in this tail tip clamp, see figure 24, immediately following which the tail tip is clamped by the tail tip clamp, see figure 25, immediately following which the clamping by the pin clamp is released, see figure 26, and immediately following which the pin clamp can move first to the rear, see figure 27 and subsequently to its zero position, whereby the shrimp is situated in free space except for the clamped tail tip, see figures 27/28.
  • This second embodiment of the peeling device is constructed from a certain number of clamping discs of for instance 300 mm placed vertically adjacent to each other. During operation the whole system makes a stepwise rotation of for instance eight equal steps via in this embodiment a standard angular displacement of 45°.
  • eight separately controllable tail tip clamps (10) and eight separately controllable tail part clamps (15) are arranged in identical manner in each disc and via external actions are operated via for instance partially conical rods (12) which are positioned by the whole system of clamping discs at right angles to the clamping discs and are reciprocally movable.
  • tail part clamps (15) positioned at right angles to the tail tip clamps are accommodated in the clamping discs.
  • Such a tail part clamp has the main function of clamping the tail part of the relevant shrimp during shearing of the head shell part from the flesh of the shrimp in position 5, whereby the flesh of this shrimp is simultaneously clamped.
  • This clamp can also function to support the tail part during the rotation movements.
  • Position 1 (fig. 24/28): clamping the tail tip of the shrimp, optionally combined with partial clamping of the tail clamp in order to support the tail part, and removing the pin clamp (3) and tail fork (7);
  • Position 4 (fig. 31/33): kneading the part of the shrimp protruding outside the clamps, wherein support plate (14) is placed behind the shrimp.
  • This kneading as takes place in this exemplary embodiment with two rollers moving toward each other during this action, can be combined with other actions such as for instance vibration, but can also be performed with additional means with which kneading actions can also be performed at right angles to the pattern of movement utilized here. These kneading actions are intended to break or to weaken the internal connections between the flesh and the head shell part of the shrimp.
  • Position 5 (fig 35/38): determining via position detection means (17), in the form applied in this embodiment of an electronic registration of the angular displacement of the sensor pin of 17, see figures 34/35, and controlling with the data obtained thereby the positioning of the actuator (19), and thereby carrying and fixing the external shearing plate (18) horizontally into the correct position, see figure 36, followed by vertical positioning of the external shearing plate, see figure 37.
  • Shearing plates 16 and 18 are both provided with a half-notch of for instance 8 mm, whereby, after enclosing the head shell part of the shrimp therein as shown in figures 36 and 37, followed in this exemplary embodiment by a flesh-removing action during the subsequent rotation movement by temporary coupling in the form of for instance a magnetic coupling of the internal shearing plate (16) to the external shearing plate (18), see figures 37/38.
  • the first stage of shearing the head shell part of the shr imp off the flesh of the shrimp takes place here during the action of figure 36 to figure 37, whereby the structural connection between the head shell part and the meat, the flesh, has wholly or partially taken place.
  • the complete shearing off of the head shell part can then take place by continuing this vertical movement of the combination of shearing plates, or takes place as shown in this embodiment by halting the shearing plates in combination with pulling of the flesh out of the head shell part during the first part of the continued rotation step.
  • the coupling of the shearing plates is broken, the external shearing means return to their zero position and the head shell part is collected in a collecting device (20) arranged at that location, see figure 39.
  • Position 6 (fig. 40/44): clamping the flesh (21) protruding out of the tail part, figures 40/42, in combination with opening the tail clamp, sec figures 41/42, and subsequently pulling the flesh out of the tail part, see fig. 42/43, and in this exemplary embodiment the flesh, after being released from the flesh clamp (22), is collected in a collecting device (23) positioned at that location, see figure 44; use of other versions of clamping means is likewise possible.
  • Position 8 activating a strong air blast (24) from the direction of the position of the tail tip clamp together with immediate, substantially simultaneous opening of the tail tip clamp (15) has the result that the tail part shell (25) is blown out of the clamping disc into the collecting device (26) positioned at that location.

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

Abstract

L'invention concerne un dispositif de décorticage et un procédé de décorticage d'objets. Le dispositif de décorticage de l'invention comprend : un cadre doté d'un axe de rotation ; et un support d'objet pour décorticage relié au cadre, le support tournant autour de l'axe de rotation pendant l'utilisation de telle sorte que les objets sont décortiqués. Les objets sont, de préférence, des crevettes.
PCT/NL2013/050955 2012-12-24 2013-12-24 Dispositif de décorticage et procédé de décorticage de crevettes WO2014104888A1 (fr)

Applications Claiming Priority (2)

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NL2010054 2012-12-24
NL2010054 2012-12-24

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WO2014104888A1 true WO2014104888A1 (fr) 2014-07-03

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PCT/NL2013/050955 WO2014104888A1 (fr) 2012-12-24 2013-12-24 Dispositif de décorticage et procédé de décorticage de crevettes

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113229343A (zh) * 2020-12-28 2021-08-10 甸硕水产科技(化州)有限公司 一种虾体上料装置及方法
CN113229344A (zh) * 2020-12-28 2021-08-10 甸硕水产科技(化州)有限公司 一种虾仁排列装置及方法
US11980199B2 (en) 2020-02-07 2024-05-14 Nova-Tech Engineering, Llc Shrimp processing apparatus and methods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465383A (en) * 1968-12-09 1969-09-09 Alaska Peelers Inc Process and apparatus of feeding shrimp to deshelling means and of deshelling shrimp
US4616382A (en) * 1983-08-17 1986-10-14 Megapel Bv Mechanische Garnalenpeltechniek Shrimp-peeling machine according to the method
US4769871A (en) * 1986-08-18 1988-09-13 Gregor Jonsson Associates, Inc. Shrimp peeling machine and method
US5366405A (en) * 1992-09-14 1994-11-22 Gregor Jonsson, Inc. Semi-automatic shrimp peeling machine
US20100233948A1 (en) * 2009-03-12 2010-09-16 Gregor Jonsson Inc. Shrimp processing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465383A (en) * 1968-12-09 1969-09-09 Alaska Peelers Inc Process and apparatus of feeding shrimp to deshelling means and of deshelling shrimp
US4616382A (en) * 1983-08-17 1986-10-14 Megapel Bv Mechanische Garnalenpeltechniek Shrimp-peeling machine according to the method
US4769871A (en) * 1986-08-18 1988-09-13 Gregor Jonsson Associates, Inc. Shrimp peeling machine and method
US5366405A (en) * 1992-09-14 1994-11-22 Gregor Jonsson, Inc. Semi-automatic shrimp peeling machine
US20100233948A1 (en) * 2009-03-12 2010-09-16 Gregor Jonsson Inc. Shrimp processing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11980199B2 (en) 2020-02-07 2024-05-14 Nova-Tech Engineering, Llc Shrimp processing apparatus and methods
CN113229343A (zh) * 2020-12-28 2021-08-10 甸硕水产科技(化州)有限公司 一种虾体上料装置及方法
CN113229344A (zh) * 2020-12-28 2021-08-10 甸硕水产科技(化州)有限公司 一种虾仁排列装置及方法
CN113229343B (zh) * 2020-12-28 2023-08-08 甸硕水产科技(化州)有限公司 一种虾体上料装置及方法
CN113229344B (zh) * 2020-12-28 2023-10-03 甸硕水产科技(化州)有限公司 一种虾仁排列装置及方法

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