EP0346610B1 - Installation pour l'empaquetage des composants d'un mélange à plusieurs composants - Google Patents

Installation pour l'empaquetage des composants d'un mélange à plusieurs composants Download PDF

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Publication number
EP0346610B1
EP0346610B1 EP89108360A EP89108360A EP0346610B1 EP 0346610 B1 EP0346610 B1 EP 0346610B1 EP 89108360 A EP89108360 A EP 89108360A EP 89108360 A EP89108360 A EP 89108360A EP 0346610 B1 EP0346610 B1 EP 0346610B1
Authority
EP
European Patent Office
Prior art keywords
container
weighing
sack
installation according
edge
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 - Lifetime
Application number
EP89108360A
Other languages
German (de)
English (en)
Other versions
EP0346610A2 (fr
EP0346610A3 (en
Inventor
Werner Reif
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.)
Motan Verfahrenstechnik & Co GmbH
Original Assignee
Motan Verfahrenstechnik & Co GmbH
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 Motan Verfahrenstechnik & Co GmbH filed Critical Motan Verfahrenstechnik & Co GmbH
Priority to AT89108360T priority Critical patent/ATE86197T1/de
Publication of EP0346610A2 publication Critical patent/EP0346610A2/fr
Publication of EP0346610A3 publication Critical patent/EP0346610A3/de
Application granted granted Critical
Publication of EP0346610B1 publication Critical patent/EP0346610B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
    • B65B1/12—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of screw type

Definitions

  • the invention relates to a system for filling several individual components of a multi-substance mixture according to the preamble of claim 1.
  • Known filling and packaging systems for individual components consist of one-component containers with an assigned multi-component scale.
  • the production of a certain composition of substances from the individual components takes place in that the additive weighing of the individual components on a balance produces the mixture of substances and then packs it.
  • the weighing of chemicals in small quantities for medical technology or other areas must be carried out with high-precision weighing equipment.
  • considerable weight differences of the individual substance components can occur, ie a large amount of the first substance is mixed, for example, with a very small amount of a second substance.
  • the weighing devices to be used must cover very large weight ranges, which on the one hand entails a high technical outlay and on the other hand an inaccuracy that is ultimately unavoidable due to excessively large weight ranges.
  • Additive weighing of individual components also has the disadvantage that the weighing process takes a very long time because of this is only completed when all individual components on the multi-component scale have been weighed.
  • Several such multi-component scales or Multi-component filling stations can be arranged one behind the other. However, these cannot work together because each filling station carries out a self-contained process for the complete weighing and filling of the individual components.
  • the invention has for its object to propose an improved system for filling several individual components of a multi-substance mixture, which corresponds to the highest demands on the accuracy, purity and reliability of the filled multi-substance mixture.
  • the aforementioned disadvantages are to be avoided and a highly precise weighing and merging of individual components with a high throughput or filling speed should be made possible.
  • the present invention is based on the core idea of providing a separate combined discharge, weighing and transfer device in the area of each storage container of a respective individual component, which is adapted to the respective individual component.
  • an additional screw conveyor for high-precision fine adjustment is provided, the precise delivery of each individual component helping to achieve the highest level of precision when filling the entire mixture.
  • the invention is also based on the basic idea that an extremely precise weighing process in an economically justifiable degree and at high speed only makes sense with a one-component weighing device.
  • the invention therefore proposes the series connection of one-component containers, each with an associated filling device, for recipes consisting of several individual substances.
  • a filling device consists of a discharge device, possibly specially adapted to the substance to be filled, and a downstream weighing device, as well as a transfer device in the form of a weighing container which can be pivoted through 180 ° for transferring the weighed individual substance into a container.
  • the aim is to ensure that the materials are treated as dust-free as possible, in particular in the type of loading of the fill-up containers.
  • they are fed, for example, from sacks with individual chemicals, the emptied sacks being conveyed in a conveying channel for empty sacks by negative pressure to a sack compressor located at the end of the system.
  • An additional suction device is provided in order to suction off the possibly harmful dust formation and vapors of the chemicals, which also sucks off the dust or vapors via the sack channel.
  • the invention lies in the special closing device of the plastic bag used.
  • the upper edge of the plastic sack which is turned over the container edge, is sucked into a ring-shaped upper slot by means of a suction device and pulled apart by means of two laterally arranged grippers in order to be welded together thereafter.
  • a special bag ejection station with a downstream bag check weigher is also advantageous.
  • the system according to the invention has the advantage that it is almost fully automatic, i. H. can usually only be operated with a supervisor. High throughput rates can be achieved with the utmost precision and accuracy of the filling and packaging process.
  • Plant 1 shown schematically in side view in FIG. 1 and in plan view in FIG. 2, is used in the special exemplary embodiment for weighing and packaging individual chemicals. In general, up to about 10 individual components for the production of a specific recipe from z. B. 44 different individual components selected and metered.
  • Filling stations 4 to 6 are arranged one behind the other along a linear conveyor belt 2 with individual containers 3 displaceable thereon. As can be seen from FIG. 2 in a top view, 4 to 6 each have two filling containers 7, 7 'arranged side by side, so that in the illustration according to FIG. 2, for example, twenty-two pairs of filling containers connected in series, ie a total of forty four filling containers, are provided.
  • the numbered fillers 1 to 4 (filling stations 4), the fillers 5 to 10 (filling stations 5) and the fillers 11 to 44 (filling stations 6) are each listed in the same design in the exemplary embodiment.
  • the individual filling stations 4 to 6 with respective fill-up containers 7 are loaded with individual chemicals from above. This happens, for example, in that the individual chemicals delivered in bags are poured into the respective fill-up container 7 as a silo or storage container.
  • a special feature of the system is that the cut and emptied plastic bags 8 are sucked off in a special conveyor channel 9 for empty bags and fed to a special bag compressor 10.
  • the conveying channel serves as a suction channel for the dust developments or vapors which arise when the chemicals are poured into the filling container 7.
  • a special suction and filter device 11 is provided for producing the negative pressure in the delivery line 9 and filtering the dust or vapors.
  • the suction and filter device 11 consists of a funnel-shaped container 12 in the lower region and an upper central filter 13, and a fan 14 arranged behind the filter for generating the negative pressure.
  • a container 15 for residues from the container 12 is arranged below the funnel-shaped container 12.
  • the conveying channel 9 crosses the container 12 and leads via the subsequent line 9 'to the bag compressor 10.
  • the empty bags 8 are pressed into bales 17 or packaging by means of a screw conveyor 16.
  • each filler container 7 has in its upper region a sack filler 18 with a fill opening 19 for the respective filler container 7 and an empty sack insertion opening 20 for the conveying and suction channel 9 for the empty sacks 8.
  • the filling stations 5, d. H. the individual containers 5 to 10 are equipped in the exemplary embodiment with an outer water cooling jacket 21 for temperature-sensitive chemicals.
  • a combined discharge, weighing and transfer device 22 for the individual component is assigned to each fill-up container 7 in its lower region. This also applies to the arrangement shown in FIG. 2 with filling containers 7, 7 'positioned next to one another.
  • the discharge, weighing and transfer device of the rear filling container 7 ' is identified by reference symbol 22'.
  • the first filling station type 4 (individual containers 1 to 4) shown in FIG. 1 has a discharge device 23 which consists of two electronically controlled screw conveyors 24 and an electronically controlled shut-off valve 25 arranged one above the other.
  • the double screw conveyor serves to adapt the metering capacity to the material to be conveyed or to the weight to be weighed out of the filling container 7.
  • the screw speed of the screw conveyor 24 is electronically controlled by the weighing device 26 arranged underneath, which has a hemispherical weighing container 28 on an arm 27 which can be rotated through 180 °. Due to the electronically controlled screw transport of the screw conveyor 24, the quantity conveyed by the screw into the hemispherical container 28 is measured via the weighing device and the screw drive is continuously regulated back towards the end of the measuring process. An exact metering can finally be ensured by the electronically controlled shut-off valve 25 provided between the screw conveyor 24 and the weighing container 28.
  • the discharge, weighing and transfer devices 22 of the further filling stations 5 and 6 do not differ in principle from that of the filling station 4. As shown in FIG. 1, these can have, for example, a discharge device 23 designed only with a screw conveyor 24, the combined one Discharge, weighing and transfer process can each be adapted to the specific component to be treated or the substance in the respective dumping container.
  • additional suction lines 29 are further provided between the discharge, weighing and transfer device 22 and the suction and filter device 11 in order to keep this area completely dust-free by suction of dust and vapors.
  • a single container 3 is arranged below the discharge, weighing and transfer device 22 in order to receive the substance to be removed from the respective filling station.
  • the containers 3 are loaded manually or automatically with a plastic bag 30, the upper edge 31 of the plastic bag 30 being turned over the container edge 32 is. 3, the container 3 loaded with a plastic bag 30 is covered with an eyeglass-shaped cover 33, so that the outer edge 31 of the plastic bag is protected behind a cover and cannot collect dust.
  • the discharge, weighing and transfer device 22 has in its lower region of the transfer device 34 a connecting flange 35 which interacts with the eyeglass-shaped cover 33 and enables the material from the transfer device 34 to be filled into the plastic bag 30 without dust from the outside.
  • the refilling process takes place by a 180 ° rotary movement of the hemispherical weighing container 28, so that the material contained therein is emptied.
  • the light barrier 36 checks for the plastic bag inserted in the container 3.
  • the individual containers 3 shown in FIG. 1 are pushed one behind the other on the linear conveyor belt 2, so that no play can occur between the individual containers 3. This is expedient in the case of a large number of filling stations 4 to 6 connected in series in order to obtain the most precise and simple positioning of the individual containers below the respective filling station.
  • the last filling station 6, z. B. passed single station 44 or a preceding station, it is fed to a special stationary welding station 37 shown in FIGS. 4a-d.
  • the eyeglass-shaped lid 33 is folded away to the side and a separate sack rim suction device 38 is placed over the rim 32 of the container.
  • the sack edge suction device 38 has a slotted annular channel 39, in which the upper edge 31 of the plastic bag 30 is sucked in by negative pressure (edge 31 ').
  • the upper edge of the bag 31 is gripped by two opposite grippers 40, 40 'projecting through the lateral slots and pulled apart laterally (see FIG.
  • the welding station 37 is followed by a discharge station 42 for the filled plastic bags 30.
  • the container 3 is equipped in its lower region with a pivotable flap 43, the flap 43 being opened gently and gradually by means of a cam control 44 in such a way that the sack 30 does not suddenly arrives at the control weighing station 45 arranged below the discharge station 42.
  • the exact total weight of the filled individual components is checked again by the control weighing station 45 and faulty batches are sorted out if necessary.
  • the weighed end product then arrives on a conveyor belt 46 for further transport.
  • the container emptied in the discharge station 42 is transported further on the conveyor belt 2, a cam control 47 or an equivalent mechanism leading to the closing of the pivotable flap 43.
  • the stations 37, 42, 45 arranged after the last filling station 6 can be stations running parallel to the filling stations 4 to 6 be carried out to shorten the total length of the system.
  • An additional swivel station 48 for swiveling the eyeglass-shaped cover away from the welding station 37 is indicated in FIG. 2.
  • a faulty batch belt 49 is drawn in after the control weighing station 45, the faulty batches being sorted out from the system.
  • the empty containers 3 are filled manually or automatically with empty plastic sacks 30 in a sack filling station 50 before they are returned to the first filling container 7 in the first filling station 4 in the circuit. Before that, the light control barrier 26 is still provided for the bag control.
  • the invention is not restricted to the exemplary embodiment shown and described. Rather, it also encompasses all professional training courses without their own inventive content.
  • the filling stations 4 to 6 can also be arranged on a circular or oval ring, the individual containers 3 on the conveyor belt 2 again preferably being clocked under the filling stations.
  • the further processing stations 37, 42, 45 can be located inside or outside the circular or oval transport arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Basic Packing Technique (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Claims (9)

  1. Installation pour mettre plusieurs composants individuels d'un mélange complexe dans un récipient (30), comportant un réservoir pour chaque composant individuel, chaque composant individuel étant amené à un dispositif de pesage et de transfert (22) associé au réservoir respectif et chargé ensuite dans un récipient de transport (3), guidé le long d'une étendue de transport (2), à sac vide (30),
    caractérisée en ce qu'un dispositif combiné de déversement, de pesage, et de transfert (22) est prévu, qui comprend un dispositif de pesage (26) ayant un récipient de pesage (28) pouvant pivoter de 180°, et qui présente, en amont en tant que dispositif de déversement, un transporteur à vis (24) commandé électroniquement et réglable de façon dépendant du dispositif de pesage (26), pour le réglage fin du poids.
  2. Installation selon la revendication 1,
    caractérisée en ce qu'une soupape d'arrêt (25) est prévue à la sortie du transporteur à vis (24) pour stopper le processus de pesage.
  3. Installation selon la revendication 1 ou 2,
    caractérisée en ce que le récipient de pesage (28) est réalisé en tant que récipient (28) hémisphérique.
  4. Installation selon une des revendications 1 à 3,
    caractérisée en ce que les récipients de transport (3) reçoivent un sac (30) de matière synthétique, dont la zone supérieure (31) est retournée au-dessus du bord supérieur (32) du récipient, la zone supérieure retournée (31) du sac étant recouverte avantageusement par un couvercle (33) en forme de lunette à ouverture de remplissage pendant la phase de transport et de remplissage.
  5. Installation selon une des revendications 1 à 4,
    caractérisée en ce que, à l'extrémité de l'étendue de chargement des composants individuels (4 à 6), est prévu un dispositif (37) de fermeture des récipients, en particulier un dispositif (37) de fermeture des sacs.
  6. Installation selon la revendication 5,
    caractérisée en ce qu'un dispositif automatique (37) de fermeture des sacs présente un dispositif (38) d'aspiration des bords des sacs ayant un canal annulaire de dépression (39), qui peut être placé sur le bord (32) des récipients et entraîne une aspiration du bord supérieur (31) des sacs, retourné sur le bord (32) des récipients, en ce que le bord (31) des sacs tiré vers le haut peut être saisi au moyen de deux pinces (40,40') et étiré en un tronçon de bord plat, et en ce qu'un dispositif de soudage de matière synthétique (41) est prévu pour fermer le bord supérieur (31) des sacs.
  7. Installation selon la revendication 1,
    caractérisée en ce que, dans la zone d'extrémité de l'étendue de transport (2), un poste (42) de largage des sacs est prévu, un volet inférieur pouvant pivoter (43) du récipient (3) pouvant être ouvert vers le bas ou pivoté au moyen d'une commande à came (44) ou analogue.
  8. Installation selon la revendication 1 ou 7,
    caractérisée en ce que, dans la zone d'extrémité de la voie de transport et/ou après le poste de largage (42), est prévu un poste de pesage de contrôle (45) pour le mélange complexe pesé et emballé.
  9. Installation selon la revendication 4 ou 5,
    caractérisée en ce que la présence d'un sac dans un récipient (3) est contrôlée par un barrage photoélectrique (36).
EP89108360A 1988-05-11 1989-05-10 Installation pour l'empaquetage des composants d'un mélange à plusieurs composants Expired - Lifetime EP0346610B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89108360T ATE86197T1 (de) 1988-05-11 1989-05-10 Anlage zur verpackung der einzelkomponenten eines mehrstoffgemisches.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3816202 1988-05-11
DE3816202A DE3816202A1 (de) 1988-05-11 1988-05-11 Anlage zur herstellung und verpackung eines mehrstoffgemisches

Publications (3)

Publication Number Publication Date
EP0346610A2 EP0346610A2 (fr) 1989-12-20
EP0346610A3 EP0346610A3 (en) 1990-06-13
EP0346610B1 true EP0346610B1 (fr) 1993-03-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108360A Expired - Lifetime EP0346610B1 (fr) 1988-05-11 1989-05-10 Installation pour l'empaquetage des composants d'un mélange à plusieurs composants

Country Status (4)

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US (1) US4959947A (fr)
EP (1) EP0346610B1 (fr)
AT (1) ATE86197T1 (fr)
DE (2) DE3816202A1 (fr)

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AT513610B1 (de) * 2013-04-26 2014-06-15 Kisch Andreas Vorrichtung zur Bereitstellung von Back- und Backzusatzstoffen
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Also Published As

Publication number Publication date
EP0346610A2 (fr) 1989-12-20
US4959947A (en) 1990-10-02
EP0346610A3 (en) 1990-06-13
DE3816202A1 (de) 1989-11-23
ATE86197T1 (de) 1993-03-15
DE58903632D1 (de) 1993-04-08

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