EP0401510B1 - Dispositif pour remplir des emballages de produits pouvant s'écouler - Google Patents

Dispositif pour remplir des emballages de produits pouvant s'écouler Download PDF

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Publication number
EP0401510B1
EP0401510B1 EP90108402A EP90108402A EP0401510B1 EP 0401510 B1 EP0401510 B1 EP 0401510B1 EP 90108402 A EP90108402 A EP 90108402A EP 90108402 A EP90108402 A EP 90108402A EP 0401510 B1 EP0401510 B1 EP 0401510B1
Authority
EP
European Patent Office
Prior art keywords
filling
piston
valve
fill pipe
lead container
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
EP90108402A
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German (de)
English (en)
Other versions
EP0401510A1 (fr
Inventor
Wilhelm Reil
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.)
Tetra Laval Holdings and Finance SA
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Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP0401510A1 publication Critical patent/EP0401510A1/fr
Application granted granted Critical
Publication of EP0401510B1 publication Critical patent/EP0401510B1/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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/06—Sterilising or cleaning machinery or conduits
    • B65B2210/08—Cleaning nozzles, funnels or guides through which articles are introduced into containers or wrappers

Definitions

  • the invention relates to a system for filling packs with flowable filling material with piston and piston rod, wherein an essentially vertically arranged filling pipe, provided with a pressure relief valve that can be closed by a spring, is supplied on the inlet side via a feed line, with a flow container, which is connected to a supply line for cleaning agents is connected, and with a shut-off valve arranged in the line from the flow tank to the filling pipe.
  • DE-A-20 64074 discloses a system for filling packs similar to the type mentioned above, milk being filled into packs made of coated paper that are open on one side.
  • a metering piston pump in addition to a metering tube, there is the cylindrical space of a metering piston pump, in which a piston with a piston rod is arranged at the bottom in such a way that it can be moved from an enlarged part down to the top of the pump body.
  • the invention has for its object to improve a system for filling packs of the type mentioned in such a way that the machine can be cleaned better without extensive disassembly work and the filling operation can be started again after a short changeover.
  • the filling pipe is provided in the immediate vicinity of its outlet with the pressure relief valve and has the inside of the piston and the piston rod, that the feed line is arranged in the line from the flow tank to the filling pipe below the flow tank and that the piston on the edge is so flexible that during the return stroke it moves through the supply of the filling material above.
  • a problem with filling unilaterally open packages that are conveyed out of a package manufacturing machine with liquids is the exact dosing or filling without gas inclusions, air bubbles or foam (forms in milk).
  • the flow tank mentioned is arranged in the vertical direction at the top and connected to the feed line arranged below it, so that all gases or trapped gases arising in this system or in other line parts which are connected to the feed line can rise upwards.
  • the filling material can advantageously be fed into the supply tank, so that a larger liquid column is always arranged above the outlet side of the filling pipe arranged underneath, which is very suitable for receiving the gases rising upwards.
  • the function of known filling systems can be fully maintained and, at the same time, better cleaning is provided, in particular because the flow container is connected to a supply line for cleaning agents with a simple construction.
  • the cleaning agent can therefore be introduced on one side of the system and removed on another side without essential parts of the system having to be dismantled and without this resulting in longer downtimes than are necessary for the cleaning process itself.
  • shut-off valve is arranged in the line to the filling pipe, so that the operation can be divided into separate sections, not only the separation between the filling phase and the cleaning phase on the one hand but also the separation of individual stages within the cleaning phase on the other hand being possible.
  • Actuation of these shut-off valves first the one part and then possibly later the second part to be cleaned.
  • the shut-off valves at this point also favor maintenance or repair work, if this is necessary.
  • the pressure relief valve there is a spring in the pressure relief valve.
  • the latter is arranged at the outlet end of the filling pipe, as was already customary in known filling pipes.
  • the spring ensures that this pressure relief valve is closed until the filling pressure above this valve exceeds a certain value, after which the pressure relief valve opens. This also determines its name. This results in operational simplifications insofar as such overpressure is easily generated by the piston in the filling tube, preferably whenever a certain dose of filling material is to be ejected.
  • This pressure relief valve always opens for the discharge and then closes again.
  • the arrangement of a pressure relief valve that closes in this way at the outlet end of the filling pipe is particularly expedient when liquid filling material is to be processed and, by means of measures taken consciously, during the return stroke of the piston to the inlet end of the filling pipe and into the room via the pressure relief valve , which is the part of the filling pipe on the outlet side.
  • an inlet valve is connected to the inlet-side end of the feed line and can be controlled by a probe arranged on the inlet vessel for sensing the filling level in the inlet vessel.
  • probes commercially available that can be attached to containers are that they switch to a first state when a certain fill level of the contents is reached or exceeded, in which, for example, the inlet valve on the feed line is closed and, when this fill level is reached or fallen below, specify a different, second switching state or a corresponding control signal, so that the inlet valve is then opened, for example.
  • the supply line for cleaning agents opens tangentially into the peripheral wall of the flow container and its upper part.
  • the aim of the invention is not only to construct the system in a particularly simple manner but also to ensure cleaning without major assembly work.
  • Such cleaning is favorable on the one hand if it is possible to run the system from one end to the other.
  • one end of the system represents the upper part of the flow container. It is precisely in this part at the top of the supply tank that the cleaning agent feed line opens.
  • the cleaning agent can flow off at the other end, and this other end is preferably the outlet side of the filling pipe, where the pressure relief valve is arranged in normal operation.
  • the cleaning is particularly thorough and without manual intervention by the personnel if the supply line for cleaning agents is arranged tangentially in the peripheral wall, so that the cleaning agent introduced creates a vortex solely through the inlet, which guarantees a perfect cleaning of the supply container, even without after Disassembly of its lid cleaning tools would have to be introduced, such as Brushes, rags or scrapers.
  • the invention is further advantageously designed that the flow tank is provided at the top with a vent valve, preferably having a filter.
  • a vent valve preferably having a filter.
  • gases that settle at the top of the flow tank could be removed by opening the inlet valve for cleaning agents, it has proven to be more expedient to keep this inlet valve closed in normal filling operation and instead to install the aforementioned vent valve at the top of the system.
  • a filter is preferably arranged on the vent valve, which can expediently prevent the entry of bacteria from the environment into the flow container from the outside inwards.
  • the feed line for the filling material is also advantageously connected to a series of shut-off valves, each with a downstream filling pipe.
  • This measure allows the simultaneous filling of several packs, that is, the filling in series.
  • This type of filling is particularly desirable in high-performance machines if packs are produced in such a way that two, four, six or at least several packs in a row have to be filled in succession at the same time. In this case, the output of a filling system is multiplied accordingly.
  • a number of filling pipes can also be supplied with filling material without the fluctuations in the supply tank causing problems. The larger the number of filling pipes, the larger the diameter of the feed line for the filling material and preferably also of the flow container will be selected.
  • the inlet-side part of the filling pipe has a larger diameter than its outlet-side part
  • the piston which is designed as a sleeve with a flexible rim
  • a suitable size distribution between the inlet-side and the outlet-side part of a filling tube allows the quantity of filling material to be metered out to be precisely adjusted and maintained.
  • the arrangement of the piston in the inlet-side part with the larger diameter allows even smaller ones Hubs larger volumes to be filled.
  • the piston is designed as a sleeve, that is to say it is flexible at the edge.
  • similarly simple cuffs from other pumps for example also with bicycle air pumps.
  • the piston rod is arranged in the inlet-side part of the filling tube and is mounted on the end wall of the filling tube arranged on the inlet side by means of a separate insert. Inside such an insert is a space that acts as a vapor barrier during operation, so that no gases escape from the contents nor - what is more important when filling liquid foods - contamination from the environment and air from the outside of the contents can be done.
  • the piston rod is expediently stored at two spaced ends of this separate insert, between which the chamber with the vapor barrier effect is arranged. The distance between the two bearing points of this insert, which are preferably designed as slide bearings, must then be greater than the stroke of the piston.
  • the piston which is preferably designed as a simple sleeve, can be moved back and forth with the aid of the piston rod.
  • these are arranged in the plumb line.
  • the piston oscillates in the vertical direction. This movement can be controlled by motors with link guides or by air rotating cylinders, which are known per se to the person skilled in the art. It can be important to change the stroke of the piston without much To have to make modifications.
  • Such drives are also commercially available.
  • FIG. 2 is first described, which overall shows a production machine for packs 1 of paper coated on both sides with plastic.
  • the package is tubular, for example with an essentially round or square cross section, the bottom of the package being formed by folding the paper and the cover being formed by injection molding a thermoplastic.
  • the mandrel represents the inner shape of an injection mold, the swivel levers having suitably designed inner surfaces, so that in the retracted state, as shown in FIG. 2, the outer shaped part is formed by the two swivel levers 4.
  • plastic is introduced from the respective injection unit 5, which is supplied with plastic via the dashed lines 6, to inject a cover onto one end of the tube .
  • the plastic is still in the form of granules.
  • injection units 5 are held side by side in the carrier 8 of the machine, drive wheels 9 and levers 10 being shown schematically at the upper end of the injection units, which are not discussed in detail here, since the injection process and the machine for this are described in more detail elsewhere.
  • the mandrel 2 with the molded-on cover finally reaches the lower position in FIG. 2 below the common axis 3 and is conveyed into the position of the long row of packs 1 by a stripper (not shown).
  • the lid In this row the lid is located on the tube at the bottom, and the material area of the tube at the top, from which the bottom is later made by folding, is still unfolded so high that the package 1 is open at the top. From these positions, the respective pack is conveyed in the direction of arrow 11 under the filling system, generally designated 12.
  • the above explanation of the manufacturing and filling machine for liquid packs makes it understandable that the filling system 12 acts as a part and operates in a synchronously driven manner.
  • the filling system 12 essentially has a horizontally arranged feed line 20, at the inlet-side end of which an actuable inlet valve 21 and at the opposite end of a feed tank 22 with a ventilation valve 23 arranged at the top is arranged.
  • the filter in the vent valve 23 is not shown.
  • shut-off valve 25 is connected under the flow container 22 in the connected line 24, which leads to the filling pipe 13.
  • the air cylinder 26 arranged to the left of it is provided for driving it.
  • shut-off valves 25 connected under the feed line 20 are assigned to each filling pipe 13.
  • the respective filler tube 13 consists of an inlet-side part 27 with a larger diameter d 1 and an outlet-side part 14 arranged below it with a smaller diameter d 2.
  • the transition between these two parts 14 and 27 takes place through a truncated cone-shaped jacket 28.
  • a piston 29 in the form of a simple sleeve is located approximately in the middle of the inlet-side part 27 with the larger diameter d 1 and can from the piston rod 30 to dispense a certain amount of filling material in the direction of arrow 31 around the stroke h in the inlet-side part 27 the larger diameter d 1 are moved down. After that he will pulled back into the upper position.
  • a pressure relief valve 32 On the lower, outlet-side part 14 of the filling tube 13 there is a pressure relief valve 32, the spring 33 of which ensures its closed position with such a force that this valve 32 only opens at a pressure of greater than 0.2 bar. Only at this overpressure is the force of the spring 33 overcome, so that the valve 32 opens.
  • This value of 0.2 bar which can of course be set to other values in other systems, arises from the liquid column in the filler pipe 13 up to the liquid level 34 in the supply tank 22.
  • the pressure relief valve 32 is also provided with a cover 35, which can be seen in FIG 2 recognized.
  • an end wall 36 with a fastening connection 37 is attached on the inlet side at the top, in which a separate insert 38 made of elastic material is arranged.
  • This insert 38 is hollow and defines an inner chamber 39 which acts as a vapor barrier during operation in order to avoid contamination of the liquid foodstuffs by outside air.
  • the insert 38 has a length d3, which is greater than the stroke h, so that when the piston 29 moves with its piston rod 30 via the stroke h, no part of the piston rod comes out of the interior of the filling tube 13 via the insert 38 upwards. This means that the environment or outside air cannot contaminate any parts of the piston rod 30 which subsequently enter the filling tube 13.
  • a tab 40 is rotatably articulated, on the upper side 41 of which an articulation point is eccentrically attached to an air cylinder 42.
  • This cylinder 42 preferably rotates 180 ° first in one direction and then in the other direction, so that during operation the piston rod 30 continuously makes an oscillating movement.
  • a dashed line is at the top right next to the air rotating cylinder 42 another drive option indicated, namely with a motor 43 and pin 44 which is displaceable in a link guide 45 of a lever 46, whereby this lever 46 is rotatable about the stationary bearing 47 and can be moved up and down in the direction of the double arrow 48 so that in turn a Similar tab as the tab 40 would cause an oscillating up and down movement of the piston rod 30 when attached to this lever 46.
  • the difference between the two types of drive is that the articulation point 41 of the bracket 40 is more difficult to adjust in the case of the pneumatic cylinder 42 (if other strokes are to be set) than in the right-hand dashed illustration. There a displacement of the motor 43 in the direction of the arrow 49 on the right or left is sufficient to make the stroke smaller or larger.
  • a feed line 50 for cleaning agent opens tangentially at the flow tank 22 and can be shut off via an inlet valve 51.
  • the inlet valve 21 is controlled by a probe, not shown, which opens the inlet valve 21 when the liquid level 38 falls below a certain level; and closes when the liquid level 34 rises above the previously set mark.
  • the normal filling is carried out in such a way that the inlet valve 21 is opened and the filling material enters the feed line 20 in the direction of the arrow 52. After filling the feed line 20, the liquid to be filled slowly rises to the fill level 34 in the flow tank 22. If the shut-off valves 25 are opened, the fill pipes 13 also fill.
  • the vent valve 23 is open during operation. Any air that is trapped in the system escapes up into the feed tank 22 and from there through the vent valve 23 into the atmosphere.
  • the piston 29 determines the output quantity via its stroke h.
  • a simple cuff does not require any elaborate guidance since the outer edge of the cuff, ie the piston 29, is very flexible and is also permissible for operation.
  • an overpressure arises in front of the piston 29 (below the same in the drawing), by means of which the flexible edge of the piston 29 firmly adheres to the wall of the filling tube 13 is pressed, the force of the spring 33 is overcome, the pressure relief valve 32 opens, and the pack 1 is filled.
  • a negative pressure is created in the space above the piston 29.
  • valve 25 Because the valve 25 is open, contents can be sucked in from the feed line 20 or else from line 24.
  • the piston 29 then moves back into the position shown in FIG. 1. Before the return stroke, ie in the lower end position of the piston 29, the valve 25 is closed by a signal. There is no longer any pressure difference in the filling tube 13.
  • the piston 29 practically moves through the supply of the filling material. As a result, the volume emptied by the discharge is replenished under the piston 29.
  • the liquid collecting in the outlet-side part 14 of the filling pipe 13 is blocked by the pressure relief valve 32, because this is closed.
  • the opening takes place only by the downward movement of the piston 29 in the direction of the arrow 31.
  • shut-off valves 25 are opened, and at the latest now the inlet valve 21 must be closed.
  • the cleaning liquid now flows down into the filling tubes 13, via the piston 29, past the sleeve downwards into the outlet-side part 14 of the filling tube 13.
  • the pistons 29 work by performing their oscillating up and down movement.
  • the only and less complex assembly for the cleaning operation is that the pressure relief valve 32, as has also been the case in known devices up to now, is removed by hand, cleaned and reinstalled later.
  • the outlet-side ends of the filling pipes 13 are connected together to a return pipe via lines (not shown). The cleaning liquid therefore flows down through the filling pipes 13 and back into the feed system (not shown) via the return pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Sealing Material Composition (AREA)
  • Gasket Seals (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (7)

  1. Installation pour remplir des emballages (1) de produit fluide comportant : un piston (29) et une tige de piston (30), un tube de remplissage (13) sensiblement vertical étant prévu du côté de l'entrée d'un conduit d'alimentation (20) avec une valve de surpression (32) sollicitée vers sa fermeture par un ressort (33) ; un réservoir amont (22) qui est raccordé à un conduit (50) d'introduction d'un produit de nettoyage et ; une valve de barrage (25) disposée dans le conduit (24) reliant le réservoir (22) au tube de remplissage (13), caractérisée en ce que le tube de remplissage (13) comporte au voisinage de sa sortie une valve de surpression (32) et renferme le piston (29) et la tige de piston (30) ; en ce que le conduit d'alimentation (20) est disposé dans le conduit (24) allant du réservoir (22) au tube de remplissage (13) en dessous du réservoir (22) ; et en ce que le piston (29) a un bord souple de sorte que dans sa course de retour il traverse la réserve disponible en produit fluide qui se trouve au dessus de lui.
  2. Installation selon la revendication 1, caractérisée en ce qu'une valve d'entrée (21) est raccordée à l'extrémité d'entrée du conduit d'alimentation (20) laquelle est commandée (fig. 2) par une sonde disposée sur le réservoir (22) pour détecter le niveau de remplissage (34) dans le réservoir (22).
  3. Installation selon la revendication 1 ou 2, caractérisée en ce que le conduit d'introduction (50) du produit de nettoyage débouche tangentiellement dans la paroi latérale du réservoir (22) à la partie supérieure de celui-ci.
  4. Installation selon l'une des revendications 1 à 3, caractérisée en ce que le réservoir (22) est prévu à son sommet avec un filtre muni avantageusement d'une valve d'échappement d'air (23).
  5. Installation selon l'une des revendications 1 à 4, caractérisée en ce que le conduit d'alimentation (20) pour le produit fluide est relié (fig. 2) à une série de valves de barrage (25) raccordées chacune à un tube de remplissage (13).
  6. Installation selon l'une des revendications 1 à 5, caractérisée en ce que la partie (27) du côté de l'entrée (27) du tube de remplissage (13) a un diamètre (d₁) qui est plus grand que celui (d₂) de la partie (14) du côté de la sortie et en ce que le piston (29) agit avantageusement comme une manchette (fig. 1) dans la partie (27) du côté de l'entrée.
  7. Installation selon l'une des revendications 1 à 6, caractérisée en ce que la tige de piston (30) est disposée dans la partie d'entrée (27) du tube de remplissage (13) et se trouve guidée (fig. 1) sur le bord frontal (36) côté entrée du tube de remplissage (13) au moyen d'une pièce rapportée séparée (38).
EP90108402A 1989-05-10 1990-05-04 Dispositif pour remplir des emballages de produits pouvant s'écouler Expired - Lifetime EP0401510B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915273A DE3915273A1 (de) 1989-05-10 1989-05-10 Anlage zum befuellen von packungen mit fliessfaehigem fuellgut
DE3915273 1989-05-10

Publications (2)

Publication Number Publication Date
EP0401510A1 EP0401510A1 (fr) 1990-12-12
EP0401510B1 true EP0401510B1 (fr) 1994-01-05

Family

ID=6380397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108402A Expired - Lifetime EP0401510B1 (fr) 1989-05-10 1990-05-04 Dispositif pour remplir des emballages de produits pouvant s'écouler

Country Status (5)

Country Link
EP (1) EP0401510B1 (fr)
AT (1) ATE99620T1 (fr)
DE (2) DE3915273A1 (fr)
DK (1) DK0401510T3 (fr)
ES (1) ES2047746T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1615003T3 (pl) 2004-07-09 2015-02-27 Soremartec Sa Maszyna do dozowania kroplami
JP5032107B2 (ja) * 2006-12-22 2012-09-26 四国化工機株式会社 充填タンクの洗浄方法
DE102009040496A1 (de) * 2009-09-08 2011-03-10 Iwk Verpackungstechnik Gmbh Tubenfüllmaschine und Verfahren zur Steuerung einer Dosierpumpe insbesondere in einer Tubenfüllmaschine
FR3021715B1 (fr) * 2014-05-28 2016-05-20 Pcm Dispositif de distribution et ensemble de tels dispositifs de distribution
CN115027715B (zh) * 2022-05-27 2023-08-18 山东辉成药业有限公司 一种医疗液体药物分装装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE356683B (fr) * 1969-12-30 1973-06-04 Tetra Pak Int
US3911972A (en) * 1971-05-27 1975-10-14 Ernst Hubers Method of filling containers enclosing solid matter with an accurate amount of liquid
DE3024489A1 (de) * 1980-06-28 1982-01-21 Josef 4422 Ahaus Finnah Vorrichtung zum portionsweisen abfuellen von fluessigen oder pastoesem fuellgut in behaeltnisse
IT1145648B (it) * 1981-12-30 1986-11-05 Ferrero Spa Macchina colatrice in particolare per la colata in quantita dosate di prodotti alimentari
DE3623417A1 (de) * 1986-07-11 1988-02-04 Benz & Hilgers Gmbh Dosiervorrichtung zum dosieren und abfuellen von fluessigen oder pasteusen massen, insbesondere keimfrei zu haltenden nahrungsmitteln, wie milch, joghurt, pudding, desserts oder dergleichen in behaelter

Also Published As

Publication number Publication date
DE59004094D1 (de) 1994-02-17
DE3915273A1 (de) 1990-11-15
EP0401510A1 (fr) 1990-12-12
DK0401510T3 (da) 1994-05-16
ATE99620T1 (de) 1994-01-15
ES2047746T3 (es) 1994-03-01

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