EP0478467A1 - Einrichtung für Handhabung und Kalibrierung von Artikeln, namentlich Schalentiere und insbesondere Austern - Google Patents

Einrichtung für Handhabung und Kalibrierung von Artikeln, namentlich Schalentiere und insbesondere Austern Download PDF

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Publication number
EP0478467A1
EP0478467A1 EP91402610A EP91402610A EP0478467A1 EP 0478467 A1 EP0478467 A1 EP 0478467A1 EP 91402610 A EP91402610 A EP 91402610A EP 91402610 A EP91402610 A EP 91402610A EP 0478467 A1 EP0478467 A1 EP 0478467A1
Authority
EP
European Patent Office
Prior art keywords
articles
conveyor
roller
bucket
installation according
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.)
Withdrawn
Application number
EP91402610A
Other languages
English (en)
French (fr)
Inventor
Michel Alix
Jean-Claude Rollet
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.)
TUYAUTERIE CHAUDRONNERIE DU COTENTIN
Original Assignee
TUYAUTERIE CHAUDRONNERIE DU COTENTIN
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 TUYAUTERIE CHAUDRONNERIE DU COTENTIN filed Critical TUYAUTERIE CHAUDRONNERIE DU COTENTIN
Publication of EP0478467A1 publication Critical patent/EP0478467A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/16—Sorting according to weight
    • B07C5/18—Sorting according to weight using a single stationary weighing mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
    • B07C2501/0081—Sorting of food items

Definitions

  • the present invention relates to an installation for handling and calibrating articles; it applies in particular, but not exclusively, to an installation for the treatment of shellfish, and in particular for that of oysters.
  • oysters are sold by categories, or classes, which are defined essentially as a function of their weight and dimensions.
  • the object of the present invention is to remedy these drawbacks by providing an installation for handling and calibrating articles of a simple design, and consequently inexpensive, while being very reliable.
  • the installation according to the invention has the particularity of presenting an entry station which comprises: means, such as a roller, for transporting the articles individually; means for delivering the articles in a substantially aligned manner to the inlet of said roller, a conveyor provided at the outlet of the roller for successively and individually receiving the articles from said roller; and means for controlling in time the unitary passage of the articles from the roller to the conveyor.
  • an entry station which comprises: means, such as a roller, for transporting the articles individually; means for delivering the articles in a substantially aligned manner to the inlet of said roller, a conveyor provided at the outlet of the roller for successively and individually receiving the articles from said roller; and means for controlling in time the unitary passage of the articles from the roller to the conveyor.
  • the means for delivering the articles in a substantially aligned manner at the inlet of the roller are of the gravity type.
  • the conveyor may include unitary support means for the articles, for example of the bucket type or the like.
  • the means for controlling over time the unitary passage of the articles from the roller to the conveyor comprise: a detector of the presence of an article in the vicinity of the outlet of the roller, and controlled means by the detector and arranged to allow the passage of said article on the conveyor only at a predetermined rate with respect to the passage of the preceding article, in synchronism with the speed of the conveyor.
  • the means which are controlled by the detector they are for example constituted by a clutch controlling the stopping and the circulation of the roller.
  • the presence of the article in the vicinity of the outlet of the roller can be detected in any suitable manner, for example by a detector of the mechanical probe type or of the optical type.
  • the weighing station can be arranged at the outlet from the conveyor, and said weighing station is then remarkable in that it comprises a unitary weighing pan for articles coming from the conveyor; memory means for storing the weight of the articles weighed successively; conveyor means for receiving the items from the transporter individually and for moving these items individually to the weighing pan; ejector means controlled by the memory means for selectively directing each article present on the conveyor means towards one of a plurality of receptacles according to its weight.
  • the weighing plate and some of the ejector means are elements of the slide, the continuity of which they break.
  • the ejector means may comprise a plurality of hatches, each associated with a jack, each jack causing the opening of its associated hatch under the control of the memory means when the bucket-bucket support assembly which transports the article in front, by its weight, being directed towards the container associated with said actuator and with said hatch passes overhanging said hatch.
  • the speed of movement of the conveyor means is in synchronism with that of the conveyor.
  • Each bucket-bucket support assembly can advantageously be fixed to the chain device by two horizontal fingers provided externally at the bottom and front of each support, each finger simultaneously constituting the connecting axis between two successive links of a chain and said two fingers forming a horizontal axis around which the support is free to pivot.
  • each of the two wings of said support being crossed in its upper part by a horizontal pivot which is carried at its upper part each side of the bucket associated with said support so that said bucket free to oscillate relative to its support around the horizontal axis that constitute the two pivots.
  • the memory means can be arranged to total the weights of the weighed articles belonging to the same category and transported to the same support. Said memory means can also be arranged to stop the spillage of articles in a container when the total weight of the articles already spilled in said container reaches a predetermined value.
  • the oysters after their harvest, and preferably after having undergone at least a washing and pre-sorting treatment, in order to be rid of waste, empty shells or oysters which cannot be marketed because of their too small size, are placed in bulk in a feed hopper (1) from which they are taken up, almost randomly, by an auxiliary conveyor (2), for example an elevating conveyor of the type with transverse pallets (3).
  • an auxiliary conveyor (2) for example an elevating conveyor of the type with transverse pallets (3).
  • the oysters At the exit of the transporter (2), that is to say from the upper part of said elevator in the case shown, the oysters, as shown by the arrow (4), fall into an inclined chute (5), straight or angled, to be discharged onto another auxiliary conveyor (6), for example a horizontal conveyor belt.
  • This conveyor (6) has for example a length slightly less than one meter, a width of a few centimeters and a speed adjusted so that the oysters are driven in (7) being approximately aligned, without however being possible here. to create regular spacing between them.
  • the oysters are delivered to a straight inclined chute (8) for alignment, with a V-profile whose length is approximately 50 cm, along which they slide by gravity at (9 ) by being arranged online.
  • the oysters come up against a roller (10) with a horizontal axis (11) arranged transversely to the direction (9) in which the oysters slide upstream .
  • the periphery of the roller (10) is rough and provided with teeth (12) so that the oysters which, one after the other, abut on the roller are then entrained by the teeth (12) of the latter, then pass over said roller to finally fall one by one, as shown schematically by the arrow (13), in a bucket (14) whose role will be described below.
  • the oysters are then delivered to the unit by the roller (10) on a main conveyor (15) which receives the oysters successively and to the unit.
  • the conveyor (15) is an oblique elevator and is equipped with buckets (14) or the like suitable for each receiving a single oyster.
  • the installation includes means for controlling in time the unitary and clocked passage of the oysters from the roller (10) to the main transporter (15).
  • the roller (10) is driven by an electric motor (16) on the output shaft (17) which is interposed a clutch (18), for example electromagnetic, controlling the stop and the rotation of the roller (10).
  • the clutch (18) cooperates with a detector shown diagrammatically at (19) which is arranged to detect the passage of an oyster at the outlet of the roller (10).
  • This detector (19) is for example a mechanical probe or a detector of the optical type with photoelectric cell.
  • the detector (19) is therefore able to control the stopping of the roller (10), by opening the clutch (18), as soon as it detects the passage of an oyster at the outlet of this roller, either because the feeler touches an oyster, either because the oyster passes through the radius of the cell.
  • the detected oyster ends its fall by gravity in a bucket (14) of the main conveyor (15) while the roller (10) stops, thus stopping the next oyster.
  • the purpose of this order to stop the roller (10) is to prevent two successive oysters from being delivered to the transporter (15) too closely together over time.
  • the control of the restarting of the roller (10) is carried out automatically after a predetermined period of time following the previous restarting, this period of time, of the order of a few tenths of a second, corresponding to the time interval which separates the passage of two successive buckets (14) from the conveyor (15) in line with the exit of the roller (10).
  • the operating cycle of the roller (10) therefore depends on the speed of circulation of the conveyor (15) and the spacing of the buckets (14), and said cycle is therefore in synchronism with the speed of the conveyor (15).
  • any other arrangement could be provided to ensure with certainty the unit supply of oysters from the roller (10), the spacing of which is not clocked, in the buckets (14) of the main conveyor (15) , where conversely the timing is perfect since the cups (14) are regularly spaced there.
  • the clutch (18) could be disengaged when detecting the fall of an oyster at the exit of the roller (10), the latter therefore stopping after the oyster has fallen.
  • a timed relay would cause, after a predetermined period of time following the stopping of the roller (10), the closing of the electrical circuit of the clutch (18), which would put the roller (10) back in rotation.
  • the oysters are delivered to the unit and in a clocked manner to a weighing calibration system (49).
  • the oysters fall one by one, always in rhythm, as shown schematically by the arrow (20), on a conveyor (21) also equipped with buckets (22) each of which is suitable for receiving an oyster.
  • the speed of travel (23) of the conveyor (21) is in synchronism with that of the main conveyor (15), namely that the step - or interval separating two successive buckets, respectively (14) and (22) - is traversed according to exactly the same time by the conveyor (15) and respectively the conveyor (21 ).
  • the oysters transported individually by the transporter (15) are deposited one by one, each in a bucket (22) of the conveyor (21), so that each bucket (22) receives one and only one oyster.
  • the conveyor (21) consists of a device with two parallel chains (24), each arranged in a loop and both driven in the same movement by sprockets (25), themselves rotated by an electric motor ( 26), and a fixed slide (27) centered between and under the two chains (24), slide which extends at least under the upper horizontal strands of the loops (24).
  • Each of the buckets (22) equipping the conveyor (21) is driven by the two chains (24) by means of a support (28), metal or plastic, U-shaped whose sole (29) carries under its underside a central pad (30) by which the bucket support is supported on the slide (27), and by which the sliding of said support along the slide is facilitated, and each of the two wings (31) is crossed in its upper part by a horizontal pivot (32) which carries at its upper part each flank (48) of the bucket (22), so that said bucket is free to oscillate, relative to its support (28), around of the horizontal axis that constitute the two pivots (32) so that the oyster transported by the bucket (22) has its center of gravity placed below the vertical of this axis.
  • a horizontal finger (outside of each of its supports (28) is provided at the bottom and front of each support (28). 33) which simultaneously constitutes the connecting axis between two successive links (34) of a chain (24).
  • each support (28) is driven in displacement by its two fingers (33) caught between the two chains (24), while simultaneously preserving complete freedom of pivoting around the horizontal axis that constitute the two fingers (33).
  • the two parallel chains (24) drive all the buckets (22) in the same translational movement, each bucket (22), free to oscillate relative to its support (28) around the axis (32), being driven by said support, of which it is integral, by the axis (33) around which the support (28) is also free to oscillate, the bucket assembly (22) - bucket support (28) sliding by its pad central (30) on the slide (27) centered between and under the upper horizontal strands of the two chains (24).
  • each bucket (22) passes over the plate (35) of an electric load cell (36) which, before taring, allows the measurement of the weight of the oyster to within a few grams.
  • This plate (35) is advantageously arranged in alignment with the slide (27), of which it constitutes one of the portions.
  • the weight of each oyster is recorded in a central memory unit (37) which, in addition, controls the various elements of the weighing station (49), as described below.
  • a jack (38), pneumatic, hydraulic or electric causes the opening of 'an associated hatch (39) which also breaks the continuity of the slide (27) on which the bucket supports (28) slide.
  • a bucket support (28) passes over a hatch which then opens under the control of the unit (37), it rocks by gravity around its axis (33) and the bucket (22), which itself swings around its axis (32), drops the oyster which it transports ( Figure 4) on a transverse conveyor belt (40) which discharges the oyster from the side in a receptacle (41) oysters, which can be a pouch, a bag or a basket.
  • a position detector (42) sends to the central unit (37) an electrical signal for the position of the weighed oyster.
  • the unit (37) then simultaneously processes the “weight” and “position” data of the different oysters then in place on the conveyor (21) and it causes the actuators (38) which open the hatches (39) causing the tilting buckets (22) and the fall of the oysters according to their weight, that is to say their size.
  • the first cylinder (38a) ( Figure 1) corresponds for example to oysters of size 1, the second cylinder (38b) to oysters of size 2, the third cylinder (38c) to oysters of size 3, and so on.
  • the oysters calibrated as just said are therefore sent by gravity from the transverse belts (40) into that of their container (41a, 41b, 41c) which corresponds to them in the calibration plane.
  • each container for receiving oysters of the same size is provided with a flap (43) for stopping the oysters from spilling into the container (41) concerned.
  • This component makes it possible to stop the filling of a container (41) when the total weight of the oysters dropped therein has reached a value previously given and fixed to the central unit (37).
  • a jack (44) whose position of the rod (45) is controlled by the unit (37). This device allows the operator to remove the full container (41) and replace it with an empty container.
  • each of the buckets (22) equipping the conveyor (21) is driven by the two chains (24) by means of a support (128), metallic or plastic, in the form of a rectangular frame whose long sides or sides (131) extend parallel to the drive chains (24), the lower edges (131a) of these sides (131) constituting the pads allowing the sliding of the frame support (128), and of the bucket ( 22) that it contains, on two horizontal slides (27) which also extend parallel to the drive chains (24).
  • the frame support (128) consists exclusively of its four vertical walls, that is to say that it is hollow and open at its base and at its top.
  • a pit (23) separates the two slides (27) to allow free passage of the bottom of the bucket (22), which extends well beyond the lower part of its support (128).
  • each flank (131) of the frame support (128) is crossed by a horizontal pivot (32) which each flank (48) of the bucket (22) carries at its upper part so that said bucket is free to oscillate relative to the frame support (128), around the horizontal axis which constitute the two pivots (32), and that the oyster transported by the bucket (22) has its center of gravity placed under the vertical of this horizontal axis.
  • each frame support (128) is provided by an axis (33) which passes through said frame support and which is taken at each of its ends in a recess (54) defined by the connection between two links (34) successive of a chain (24).
  • the axis (33) passes through each flank (131) of the frame support (128) by penetrating an oblong lumen (50) formed near the upper front corner of said flank.
  • the oblong lumen (50) extends essentially vertically by having a width equal to about one and a half times the diameter of the axis (33) and a height of the order of two and a half times said diameter of the axis (33).
  • the two parallel chains (24) drive all the buckets (22) in the same translational movement (23), each bucket (22), free to oscillate relative to its frame support (128) around the axis (32), being driven by said frame support, of which it is integral, by the axis (33) around which the frame support (128) is also free to oscillate, the bucket assembly (22) - support- frame (128) sliding on the two slides (27) placed under the lateral pads (131a) of said support (128).
  • each bucket (22) passes over the plate (35) of the electric load cell (36) which, before taring, makes it possible to measure the weight of the oyster to within a few grams.
  • This plate (35) is advantageously arranged in alignment with the slides (27), of which it then constitutes one of the portions.
  • connection between the horizontal drive axis (33) of each frame support (128) and said support is provided and completed on each side (131) of said frame support by a plastic bar (51) which allows a double articulation between the axis (33) of the support drive (128) and said support (128).
  • the bar (51) is terminated by two bulges, respectively (51a) and (51b), which are each pierced with an orifice crossed, the first, by the axis (33) and, the second, by a finger (52) which extends horizontally and outside the sidewall (131).
  • the two lateral bars (51) allow a drive of the frame support (128) while eliminating the parasitic friction forces between the drive axis (33) and the frame support (128).
  • the weight of each oyster measured by the weighing scale (36) is recorded in the central unit (37) with memory.
  • an electric actuator (55) whose rod (56) is normally retracted causes the bucket (22) to tilt about its axis of oscillation (32), thus allowing the oyster it contains to be evacuated into a pit (53) located between the two slides (27) and its recovery, either in a chute, or by a conveyor belt (40), which will pour the oyster into a pouch, a bag or a basket, as has been seen previously.
  • Each container will thus receive oysters of the same size.
  • the tilting of the bucket (22) is obtained by means of a tongue (57) which is mounted against a side (48) of the bucket, inside the latter, and which is retained against this side by the 'axis (32) and a screw (58).
  • the stop (59) thus no longer blocks the passage of the tongues (57) and it will then be only on new instruction from the central unit (37) and energization of the jack (55) that the stop will be active again. when the oyster contained in the support-bucket assembly which has the desired size.

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  • Sorting Of Articles (AREA)
EP91402610A 1990-09-28 1991-09-30 Einrichtung für Handhabung und Kalibrierung von Artikeln, namentlich Schalentiere und insbesondere Austern Withdrawn EP0478467A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9011961 1990-09-28
FR9011961A FR2667300B1 (fr) 1990-09-28 1990-09-28 Installation pour la manutention et le calibrage d'articles, notamment de coquillages, et plus particulierement d'huitres.

Publications (1)

Publication Number Publication Date
EP0478467A1 true EP0478467A1 (de) 1992-04-01

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EP91402610A Withdrawn EP0478467A1 (de) 1990-09-28 1991-09-30 Einrichtung für Handhabung und Kalibrierung von Artikeln, namentlich Schalentiere und insbesondere Austern

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EP (1) EP0478467A1 (de)
FR (1) FR2667300B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042197A1 (en) * 1997-03-21 1998-10-01 Octa Technologies Pty. Ltd. A shell feeder apparatus
AU724869B2 (en) * 1997-03-21 2000-10-05 Octa Technologies Pty Ltd A shell feeder apparatus
FR2792555A1 (fr) * 1999-04-20 2000-10-27 Sarl Hardouin Joel Installation pour le tri d'objets, en particulier de coquillages, notamment d'huitres
EP1353155A1 (de) * 2002-04-11 2003-10-15 Tuyauterie Chaudronnerie du Contentin S.A. Verfahren und Vorrichtung zum fortlaufenden Wiegen von Gegenständen und eine entsprechende Einrichtung zum Kalibrieren von zweischaligen Seetieren
FR3052149A1 (fr) * 2016-06-02 2017-12-08 Bira Procede de conditionnement de fruits de mer par une pesee individuelle de chaque produit.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645394A (en) * 1970-09-21 1972-02-29 Goodale Mfg Co Inc Apparatus for sorting and grading cut flowers
FR2549395A1 (fr) * 1983-07-22 1985-01-25 Pierre Daniel Separation et pesage unitaire de corps solides (huitres, fruits, etc.)
GB2167211A (en) * 1984-10-18 1986-05-21 British Cast Iron Res Ass Article recognition and handling system
DE3906084A1 (de) * 1988-03-01 1989-09-07 Kone Oy Verfahren und einrichtung zum parallelausrichten von nutzholz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645394A (en) * 1970-09-21 1972-02-29 Goodale Mfg Co Inc Apparatus for sorting and grading cut flowers
FR2549395A1 (fr) * 1983-07-22 1985-01-25 Pierre Daniel Separation et pesage unitaire de corps solides (huitres, fruits, etc.)
GB2167211A (en) * 1984-10-18 1986-05-21 British Cast Iron Res Ass Article recognition and handling system
DE3906084A1 (de) * 1988-03-01 1989-09-07 Kone Oy Verfahren und einrichtung zum parallelausrichten von nutzholz

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042197A1 (en) * 1997-03-21 1998-10-01 Octa Technologies Pty. Ltd. A shell feeder apparatus
AU724869B2 (en) * 1997-03-21 2000-10-05 Octa Technologies Pty Ltd A shell feeder apparatus
FR2792555A1 (fr) * 1999-04-20 2000-10-27 Sarl Hardouin Joel Installation pour le tri d'objets, en particulier de coquillages, notamment d'huitres
EP1353155A1 (de) * 2002-04-11 2003-10-15 Tuyauterie Chaudronnerie du Contentin S.A. Verfahren und Vorrichtung zum fortlaufenden Wiegen von Gegenständen und eine entsprechende Einrichtung zum Kalibrieren von zweischaligen Seetieren
FR2838515A1 (fr) * 2002-04-11 2003-10-17 Tuyauterie Chaudronnerie Du Co Procede et dispositif de pesage d'articles en continu, et installation correspondante pour le calibrage de coquillages, et notamment d'huitres
FR3052149A1 (fr) * 2016-06-02 2017-12-08 Bira Procede de conditionnement de fruits de mer par une pesee individuelle de chaque produit.

Also Published As

Publication number Publication date
FR2667300A1 (fr) 1992-04-03
FR2667300B1 (fr) 1992-11-27

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