EP0787962B1 - Drying apparatus for filled tubular films - Google Patents

Drying apparatus for filled tubular films Download PDF

Info

Publication number
EP0787962B1
EP0787962B1 EP97100898A EP97100898A EP0787962B1 EP 0787962 B1 EP0787962 B1 EP 0787962B1 EP 97100898 A EP97100898 A EP 97100898A EP 97100898 A EP97100898 A EP 97100898A EP 0787962 B1 EP0787962 B1 EP 0787962B1
Authority
EP
European Patent Office
Prior art keywords
drying device
brush
brush rollers
foil tube
driven
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
EP97100898A
Other languages
German (de)
French (fr)
Other versions
EP0787962A3 (en
EP0787962A2 (en
Inventor
Wilhelm Baur
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.)
Natec Reich Summer GmbH and Co KG
Original Assignee
Natec Reich Summer GmbH and Co KG
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 Natec Reich Summer GmbH and Co KG filed Critical Natec Reich Summer GmbH and Co KG
Publication of EP0787962A2 publication Critical patent/EP0787962A2/en
Publication of EP0787962A3 publication Critical patent/EP0787962A3/en
Application granted granted Critical
Publication of EP0787962B1 publication Critical patent/EP0787962B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/24—Arrangements of devices using drying processes not involving heating
    • F26B13/28—Arrangements of devices using drying processes not involving heating for applying pressure; for brushing; for wiping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping

Definitions

  • the present invention relates to a drying device for filled, band-shaped film tubes according to the preamble of claim 1.
  • Such drying devices are used for drying with product filled film tubes, such as z. B. arise in the manufacture of Processed cheese in a continuous, continuous tubular film is filled in liquid form.
  • the adhering cooling medium - preferably water - if possible from the outside of this band-shaped Foil tube are removed. The reason for the need for Removal of the water is that this water is troublesome in the final packaging this is cheese slices packed in foils.
  • Another known method uses heated air on which the Foil tube leaving the cooling bath is steered, which has the disadvantage is connected that the film tube is heated again, resulting in a Liquefaction of the contents in the film tube leads. Then that is the Seal quality deteriorated. There is also a higher energy requirement.
  • the invention is therefore based on the object of a drying device further developed in such a way that the leaving the cooling bath, tape-shaped film tube filled with a product as gentle and as possible is dried using energy sparingly.
  • An essential feature of the invention is that now in the field of Drying device counter-rotating brush rollers are present, through the nip of the band-shaped film tube is, the brush rollers in the opposite direction to the transport direction of the Foil tube are driven.
  • the adhesive water film has the advantage that the stacking of the ribbon-shaped film tube cut single slices is significantly improved because of the microfine Water film is a volatile adhesive layer between the individual Forms disks, which are thus very full and close to each other without there is a risk of slipping in the stack.
  • Water ingress in the subsequent final packaging system is not allowed fear that drying out in the stack has already progressed so far, that the microfine water film is hardly present when the stack is formed and is no longer a problem in the final packaging.
  • drying device due to the mechanical brush rolling action now also water, which is in the Area of the handle of the cheese packaging is formed by the mechanical walkund Wiping and spreading action of the brush rollers easily from the film can be removed without the need for complex drying processes.
  • the Drying device from at least two opposite and one single brush nip forming brush roller.
  • the drying device 1 according to Figures 1 to 3 consists essentially of a housing, which is parallel and a mutual distance from each other engaging side plates 4, 5 has.
  • the housing is open on one side, while on the other side to the side plate 4,5 bearing blocks 6, 7th connect on which the drive units are mounted.
  • a drive motor 16, 18 is attached, the Drive shaft is rotatably connected to a drive wheel 28, 29.
  • a drive wheel 28, 29 about everyone Drive wheel 28, 29 each have a drive belt 17, 19, each Drive belts 17, 19 each a pair of the brush rollers 8, 9; 10, 11 drives.
  • Each brush roller here has associated drive wheels 24, 25, via which the respective drive belt 17, 19 runs.
  • Each brush roller 8-11 here consists of a plastic body 13 on which rotationally fixed a bristle coating 12 with radially outwardly directed bristles is arranged.
  • the respective pairs of brushes 8, 9 and 10, 11 are opposite to the Transport direction (arrow direction 3) of the film tube 2 driven.
  • the bristle coverings 12 of the individual brush rollers therefore brush 8 - 11 the broad sides of the film tube 2, while the front side 23 additionally by the interlocking in the overlap area 22 Bristles are brushed off.
  • a particularly simple drive arrangement results from the fact that the Brush rollers 8, 9 and 10, 11 arranged in pairs by the only one existing drive belts 17, 19 are driven, making them in Arrow direction 20, 21 are driven in opposite directions.
  • the water that forms in the housing and that flows from the film tube 2 was brushed, runs down the drain surface 27 and collects in Collection container 26 and is discharged through an outlet 30 to the outside.
  • the drying device described thus turns the outlet 30 into a microfine one Water film generated on all surfaces of the ribbon-shaped film tube 2, the the previously described advantages in stacking the cut Foil discs causes.
  • the brush rollers 8,9,10,11 are, for example, with a Speed of rotation driven by 1100 revolutions per minute. Because of this high number of revolutions, the Water from the bristle coating 12 and thus the water collects in the Collection container 26.
  • the film tube 2 is, for. B. at a speed of 70 m each Minute pulled through the drying device 1.
  • the thickness of the film tube is about 3 mm, the width can e.g. B. 84 mm amount, while the length is practically unlimited because it is one continuous film tube.
  • the brush rollers 8-11 are exchangeably held in the bearing blocks 6, 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Cleaning In General (AREA)
  • Polarising Elements (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A drying system for filled continuous tubes of film which is part of a filling, shaping, cooling, sealing, cutting, stacking and final packing plant has contra-rotating brush rolls (8,9,10,11) through the gap between which the tube of film is passed in the direction of arrow (3), so that the brush rolls are driven in a direction opposite to that of the movement of the tube.

Description

Gegenstand der vorliegenden Erfindung ist eine Trockeneinrichtung für gefüllte, bandförmige Folienschläuche nach dem Oberbegriff des Patentanspruches 1.The present invention relates to a drying device for filled, band-shaped film tubes according to the preamble of claim 1.

Aus dem Stand der Technik gehen dazu die DE -A-42 04 396 und die US 5,021,265 A hervor, wobei die DE -A-42 04 396 als nächstliegender Stand der Technik angesehen wird. Diese geht auf den Anmelder zurück und beschreibt ein "Verfahren und eine Vorrichtung zum Abpacken einer Masse in einem Folienschlauch".DE-A-42 04 396 and the US go from the prior art 5,021,265 A, with DE-A-42 04 396 as the closest version of the Technology is viewed. This goes back to the applicant and describes "Method and device for packaging a mass in a film tube".

Derartige Trockeneinrichtungen werden verwendet zur Trocknung von mit Produkt gefüllten Folienschläuchen, wie sie z. B. entstehen bei der Herstellung von Schmelzkäse, der in einen durchgehenden, fortlaufenden Folienschlauch in flüssiger Form eingefüllt wird.Such drying devices are used for drying with product filled film tubes, such as z. B. arise in the manufacture of Processed cheese in a continuous, continuous tubular film is filled in liquid form.

Nach der DE-A-4 204 396 wird der mit heißer Käsemasse gefüllte Folienschlauch etwa bandförmig geformt und durch ein Abkühlungsband hindurchgeschickt, wo die Käsemasse möglichst viel Wärme abgeben soll. Nach dem Durchlaufen durch das Kühlbad soll das anhaftende Kühlmedium - vorzugsweise Wasser - möglichst von den Außenseiten dieses bandförmigen Folienschlauches entfernt werden. Der Grund für die Notwendigkeit der Entfernung des Wassers ist, daß dieses Wasser störend bei der Endverpackung dieser in Folien verpackte Käsescheiben ist.According to DE-A-4 204 396, the one with hot cheese mass filled film tube shaped like a band and by a cooling band sent through where the cheese mass should give off as much heat as possible. To as it passes through the cooling bath, the adhering cooling medium - preferably water - if possible from the outside of this band-shaped Foil tube are removed. The reason for the need for Removal of the water is that this water is troublesome in the final packaging this is cheese slices packed in foils.

Bekannterweise wird nämlich der aus dem Kühlbad herausgezogene Folienschlauch zunächst einer Siegelstation zugeführt, nach dem Siegeln im Bereich von entsprechenden Quemähten wird er im Bereich der jeweiligen Quernaht abgeschnitten und es werden dann die so hergestellten Käsescheiben übereinandergestapelt und dann einer Endverpackungseinrichtung zugeführt. As is known, it is pulled out of the cooling bath Foil tube first fed to a sealing station, after sealing in the The area of the corresponding cross seams is in the area of the respective Cut off the transverse seam and then the cheese slices produced in this way stacked on top of one another and then fed to a final packaging device.

Wenn in dieser Endverpackungseinrichtung dann noch Wasser auf den Außenseiten der gesiegelten und geschnittenen Scheiben sich befindet, dann wird dieses mit in die Endverpackung eingetragen und es könnte zur Geruchsbelästigung oder Fäulnisbildung führen.If there is still water on the in this final packaging facility Outside of the sealed and cut panes is then this entered in the final packaging and it could be used Lead to odor or putrefaction.

Der zweite Grund ist, daß durch das anhaftende Wasser auf dem bandförmigen Folienschlauch der sich daran anschließende Siegelvorgang gestört werden könnte, weil die Siegelbacken eine erhöhte Wärmeleistung benötigen und außerdem die Siegelqualität beeinträchtigt werden könnte.The second reason is that due to the water adhering to the tape Foil tube the subsequent sealing process can be disrupted could, because the sealing jaws need an increased heat output and the seal quality could also be impaired.

Bisher hat man dieses Problem so gelöst, daß man den aus dem Kühlbad herausgezogenen, bandförmigen Folienschlauch durch eine Trockenstation hindurchführte, wo man mit Preßluft möglichst gekühlte Luft auf den Folienschlauch lenkte, um das Wasser in diesen Bereich zu entfernen. Nachteil ist jedoch, der hohe Luftverbrauch der Preßluftstation und eine gegebenenfalls damit verbundene Erwärmung des gekühlten Folienschlauches durch die darauf gelenkte Luft.So far, this problem has been solved by removing it from the cooling bath pulled out, ribbon-shaped film tube through a drying station led through, where with compressed air as possible cooled air on the Foil tubing steered to remove the water in this area. Disadvantage is however, the high air consumption of the compressed air station and possibly with it combined heating of the cooled film tube by the on it directed air.

Wegen dem Nachteil des hohen Luftverbrauches besteht auch der Nachteil des hohen Energieverbrauches, weil die Kühlluft entsprechenden Kühlaggregaten zugeführt werden muß, um eine unerwünschte Erwärmung des bandförmigen Folienschlauches nach dem Verlassen des Kühlbades zu vermeiden.Because of the disadvantage of high air consumption, there is also the disadvantage of high energy consumption because the cooling air corresponding cooling units must be supplied to undesirable heating of the band-shaped Avoid film tube after leaving the cooling bath.

Ein anderes bekanntes Verfahren verwendet erwärmte Luft, die auf den das Kühlbad verlassenden Folienschlauches gelenkt wird, was mit dem Nachteil verbunden ist, daß der Folienschlauch wieder erwärmt wird, was zu einer Wiederverflüssigung des Inhaltes im Folienschlauch führt. Damit ist dann die Siegelqualität verschlechtert. Außerdem besteht ein höherer Energiebedarf. Another known method uses heated air on which the Foil tube leaving the cooling bath is steered, which has the disadvantage is connected that the film tube is heated again, resulting in a Liquefaction of the contents in the film tube leads. Then that is the Seal quality deteriorated. There is also a higher energy requirement.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Trockeneinrichtung der eingangs genannten Art so weiterzubilden, daß der das Kühlbad verlassende, bandförmige, mit einem Produkt gefüllte Folienschlauch möglichst schonend und unter sparsamer Verwendung von Energie abgetrocknet wird.The invention is therefore based on the object of a drying device further developed in such a way that the leaving the cooling bath, tape-shaped film tube filled with a product as gentle and as possible is dried using energy sparingly.

Zur Lösung der gestellten Aufgabe ist die Erfindung durch die technische Lehre des Anspruches 1 gekennzeichnet.To solve the problem, the invention is through the technical teaching of claim 1.

Wesentliches Merkmal der Erfindung ist, daß nun im Bereich der Trockeneinrichtung gegenläufig zueinander angetriebene Bürstenwalzen vorhanden sind, durch deren Walzenspalt der bandförmige Folienschlauch geführt wird, wobei die Bürstenwalzen in Gegenrichtung zur Transportrichtung des Folienschlauches angetrieben sind.An essential feature of the invention is that now in the field of Drying device counter-rotating brush rollers are present, through the nip of the band-shaped film tube is, the brush rollers in the opposite direction to the transport direction of the Foil tube are driven.

Erfindungsgemäß kommt es lediglich zu einem Abbürsteffekt des auf dem Folienschlauch anhaftenden Wassers durch die gegenläufig angetriebenen Bürstenwalzen, durch deren Bürstenspalt der Folienschlauch hindurch transportiert wird. Es kommt also - im Gegensatz zu den bekannten Trockenverfahren des Standes der Technik - nicht zu einer Entfernung des Wassers, sondern nur zu einer feinfühligen, gleichmäßigen Erzeugung eines Wasserfilmes auf der Außenseite des bandförmigen Folienschlauches, was mit überraschenden Vorteilen verbunden ist.According to the invention, there is only a brushing effect on the Foil tube adhering water through the counter-driven Brush rollers, through the brush gap of the film tube is transported. So it comes - in contrast to the known ones Prior art dry process - not to remove the Water, but only for a sensitive, even generation of a Water film on the outside of the band-shaped film tube, what with surprising advantages.

Es hat sich nämlich gezeigt, wenn ein hauchdünner Wasserfilm auf dem Folienschlauch verbleibt, daß dann die Siegelgüte der Quemähte nicht beeinträchtigt wird und im Prinzip keine höhere Energieaufnahme an den Siegelbacken zu erwarten ist. Der anhaftende Wasserfilm hat aber den Vorteil, daß die Stapelbildung der aus dem bandförmigen Folienschlauch abgeschnittenen Einzelscheiben wesentlich verbessert ist, weil der mikrofeine Wasserfilm eine sich verflüchtigende Klebeschicht zwischen den einzelnen Scheiben bildet, die sich dadurch sehr satt und dicht aufeinanderlegen, ohne daß die Gefahr des Verrutschens im Stapel besteht.It has been shown that a wafer-thin film of water on the Foil tube remains that then the sealing quality of the cross seams not is impaired and in principle no higher energy consumption at the Sealing jaws can be expected. The adhesive water film has the advantage that the stacking of the ribbon-shaped film tube cut single slices is significantly improved because of the microfine Water film is a volatile adhesive layer between the individual Forms disks, which are thus very full and close to each other without there is a risk of slipping in the stack.

Damit wird also eine überlegene Stapelhaftung der Einzelscheiben im Stapel erreicht, was bisher mit den bekannten Trockeneinrichtungen nicht möglich war.This means that the individual slices in the stack have superior stack adhesion achieved what was previously not possible with the known drying facilities.

Man überwindet also mit der vorliegenden Erfindung ein Vorurteil, indem man von der vorherigen, bekannten, vollständigen Entfernung des Wasserfilmes abgeht, was einerseits Energie einspart und andererseits die Stapelqualität wesentlich verbessert.One overcomes a prejudice with the present invention by of the previous, known, complete removal of the water film which saves energy on the one hand and stack quality on the other improved.

Bei der bekannten Lufttrocknung konnte man nämlich die Wasserverteilung auf der Außenseite des bandförmigen Folienschlauches nicht beeinflussen, was dazu führte, daß man eine hohe Wärmeleistung zuführen mußte, weil auch einzelne Tropfen entfernt werden mußten, die sich irgendwo nestartig auf der Oberseite oder Unterseite des Folienschlauches bildeten. Damit war schon von vom herein eine hohe Wärmeleistung notwendig. Dies wird bei der vorliegenden Erfindung vermieden, indem ein gleichmäßiger, mikrofeiner Wasserfilm auf allen Seiten des bandförmigen Folienschlauches erzeugt wird.With the known air drying, the water distribution could be increased the outside of the band-shaped film tube does not affect what led to the fact that one had to supply a high heat output, because also individual ones Drops had to be removed that were nesting somewhere on the top or underside of the film tube formed. That was the end of it high heat output necessary. This will be the case with the present invention avoided by using an even, microfine water film on all sides of the ribbon-shaped film tube is generated.

Ein Wassereindrang in der nachfolgenden Endverpackungsanlage ist nicht zu befürchten, weil die Abtrocknung im Stapel bereits schon soweit fortgeschritten ist, daß der mikrofeine Wasserfilm bei der Stapelbildung noch kaum mehr vorhanden ist und in der späteren Endverpackung nicht mehr stört.Water ingress in the subsequent final packaging system is not allowed fear that drying out in the stack has already progressed so far, that the microfine water film is hardly present when the stack is formed and is no longer a problem in the final packaging.

Ein weiterer Vorteil der erfindungsgemäßen Trockeneinrichtung besteht darin, daß aufgrund der mechanischen Bürstenwalzaktion nun auch Wasser, welches sich im Bereich der Grifflasche der Käseverpackung bildet durch die mechanische Walkund Abstreif- sowie Ausstreichaktion der Bürstenwalzen leicht von der Folie entfernen läßt, ohne daß es hierbei aufwendiger Trocknungsverfahren bedarf. Another advantage of the drying device according to the invention is that due to the mechanical brush rolling action now also water, which is in the Area of the handle of the cheese packaging is formed by the mechanical walkund Wiping and spreading action of the brush rollers easily from the film can be removed without the need for complex drying processes.

Im übrigen hat es sich als vorteilhaft ergeben, wenn die einander zugewandten Bürstenwalzen mit ihren Borsten überlappen, d. h. die Borsten der einen Bürstenwalze greifen teilweise in die Borsten der gegenüberliegenden Bürstenwalze ein, so daß diese sich fingerförmig ineinander verkeilen und durch diesen Borstenspalt sich der bandförmige Folienschlauch bewegt. Im Bereich der Breitseiten werden damit das Wasser durch eine relativ starke mechanische Abstreif-Aktion von den Flachseiten des Folienschlauches entfernt, während im Bereich der Schmalseiten (schmale Stirnseiten) die ineinander tauchende Borsten auch diese schmalen Stirnseiten abbürsten und den dort haftenden Wasserfilm entfernen.For the rest, it turned out to be advantageous if the mutually facing Brush rollers overlap with their bristles, d. H. the bristles of some The brush roller partially engages the bristles of the opposite one Brush roller so that they wedge into each other and finger through the band-shaped film tube moves this bristle gap. In the field of Broad sides are thus the water through a relatively strong mechanical Stripping action removed from the flat sides of the film tube, while in Area of the narrow sides (narrow end faces) the intermeshing bristles also brush off these narrow end faces and the water film adhering there remove.

Es wird hierbei im Rahmen der vorliegenden Erfindung bevorzugt, wenn die Trockeneinrichtung aus mindestens zwei einander gegenüberliegenden und einen einzigen Bürstenspalt bildenden Bürstenwalze besteht.It is preferred in the context of the present invention if the Drying device from at least two opposite and one single brush nip forming brush roller.

In einer Weiterbildung der vorliegenden Erfindung ist es vorgesehen, wenn zwei oder mehrere derartig paarweise angeordneten und gegenläufig angetriebenen Bürstenwalzen übereinander anliegend angeordnet sind, um nacheinander folgend den bandförmigen Folienschlauch in Transportrichtung zu behandeln. In a development of the present invention, it is provided if two or several such pairs arranged and driven in opposite directions Brush rollers are arranged one above the other in order to successively then treat the ribbon-shaped film tube in the direction of transport.

Im folgenden wird die Erfindung anhand von mehrere Ausführungswege darstellenden Zeichnungen näher erläutert.In the following the invention is based on several ways of execution illustrative drawings explained in more detail.

Es zeigen:

Figur 1:
die Trockeneinrichtung in Vorderansicht,
Figur 2:
die Trockeneinrichtung in der Draufsicht in Richtung des Pfeiles II in Figur 1,
Figur 3:
die Trockeneinrichtung nach Figur 1 und 2 in Richtung des Pfeiles III in Figur 2.
Show it:
Figure 1:
the drying device in front view,
Figure 2:
the drying device in plan view in the direction of arrow II in Figure 1,
Figure 3:
the drying device according to Figures 1 and 2 in the direction of arrow III in Figure 2.

Die Trockeneinrichtung 1 nach den Figuren 1 bis 3 besteht im wesentlichen aus einem Gehäuse, welches parallele und einen gegenseitigen Abstand voneinander einnehmende Seitenplatten 4, 5 hat. An der einen Seite ist das Gehäuse geöffnet, während an der anderen Seite an die Seitenplatte 4,5 jeweils Lagerböcke 6, 7 anschließen, auf denen die Antriebseinheiten gelagert sind.The drying device 1 according to Figures 1 to 3 consists essentially of a housing, which is parallel and a mutual distance from each other engaging side plates 4, 5 has. The housing is open on one side, while on the other side to the side plate 4,5 bearing blocks 6, 7th connect on which the drive units are mounted.

In den Lagerblöcken 6, 7 ist jeweils ein Antriebsmotor 16, 18 befestigt, dessen Antriebsachse drehfest mit einem Antriebsrad 28, 29 verbunden ist. Über jedes Antriebsrad 28, 29 läuft jeweils ein Antriebsriemen 17, 19, wobei jeder Antriebsriemen 17,19 jeweils ein Paar von den Bürstenwalzen 8, 9; 10, 11 antreibt.In the bearing blocks 6, 7, a drive motor 16, 18 is attached, the Drive shaft is rotatably connected to a drive wheel 28, 29. About everyone Drive wheel 28, 29 each have a drive belt 17, 19, each Drive belts 17, 19 each a pair of the brush rollers 8, 9; 10, 11 drives.

Jede Bürstenwalze weist hierbei zugeordnete Antriebsräder 24, 25 auf, über welche der jeweilige Antriebsriemen 17, 19 läuft. Each brush roller here has associated drive wheels 24, 25, via which the respective drive belt 17, 19 runs.

Nachdem die Lager- und Antriebseinheiten genau gleich ausgebildet sind, reicht es aus, jeweils eine Bürsteneinheit, bestehend aus den Bürstenwalzen 8, 9 mit dem Lagerblock 6 zu beschreiben, weil die anderen Bürstenwalzen 10, 11 mit dem Lagerbock 7 genau identisch ausgebildet sind.After the bearing and drive units are exactly the same, that's enough it out, each with a brush unit consisting of the brush rollers 8, 9 to describe the bearing block 6 because the other brush rollers 10, 11 with the bearing block 7 are exactly identical.

Es wurde eingangs bereits schon ausgeführt, daß lediglich eine einzige Bürstenwalzeneinheit 8, 9 vorhanden sein muß, während die andere Bürstenwalzeneinheit 10, 11, entfallen könnte.It was already stated at the beginning that only one Brush roller unit 8, 9 must be present while the other Brush roller unit 10, 11, could be omitted.

Jede Bürstenwalze 8 - 11 besteht hierbei aus einem Kunststoffkörper 13, auf dem drehfest ein Borstenbelag 12 mit radial nach außen gerichteten Borsten angeordnet ist.Each brush roller 8-11 here consists of a plastic body 13 on which rotationally fixed a bristle coating 12 with radially outwardly directed bristles is arranged.

Die Borsten der einzelnen Bürstenwalzen 8 - 11 überlappen sich im Überlappungsbereich 22 (Figur 2), d. h. sie tauchen ineinander und greifen fingerförmig ineinander über.The bristles of the individual brush rollers 8-11 overlap in Overlap area 22 (Figure 2), i.e. H. they dive into each other and grip finger-shaped into each other.

Durch den Bürstenspalt der Bürstenpaare 8, 9 bzw. 11, 12 wird der bandförmige Folienschlauch 2, der etwa rechteckförmig profiliert ist, in Pfeilrichtung 3 nach obengehend hindurchgezogen.Through the brush gap of the brush pairs 8, 9 and 11, 12 the band-shaped Foil tube 2, which is profiled approximately rectangular, in the direction of arrow 3 pulled through at the top.

Hierbei sind die jeweiligen Bürstenpaare 8, 9 und 10, 11 entgegen der Transportrichtung (Pfeilrichtung 3) des Folienschlauches 2 angetrieben.The respective pairs of brushes 8, 9 and 10, 11 are opposite to the Transport direction (arrow direction 3) of the film tube 2 driven.

Gemäß Figur 2 bürsten somit die Borstenbeläge 12 der einzelnen Bürstenwalzen 8 - 11 die Breitseiten des Folienschlauches 2 ab, während die Stimseite 23 zusätzlich durch die sich im Überlappungsbereich 22 ineinander greifenden Borsten abgebürstet werden. According to FIG. 2, the bristle coverings 12 of the individual brush rollers therefore brush 8 - 11 the broad sides of the film tube 2, while the front side 23 additionally by the interlocking in the overlap area 22 Bristles are brushed off.

Eine besonders einfache Antriebsanordnung ergibt sich dadurch, daß die paarweise angeordneten Bürstenwalzen 8, 9 und 10, 11 durch den jeweils einzig vorhandenen Antriebsriemen 17, 19 angetrieben werden, wodurch sie in Pfeilrichtung 20, 21 gegenläufig angetrieben sind.A particularly simple drive arrangement results from the fact that the Brush rollers 8, 9 and 10, 11 arranged in pairs by the only one existing drive belts 17, 19 are driven, making them in Arrow direction 20, 21 are driven in opposite directions.

Das sich im Gehäuse bildende Wasser, welches von dem Folienschlauch 2 abgebürstet wurde, läuft über die Ablauffläche 27 nach unten und sammelt sich im Sammelbehälter 26 und wird durch einen Auslauf 30 nach außen abgeleitet.The water that forms in the housing and that flows from the film tube 2 was brushed, runs down the drain surface 27 and collects in Collection container 26 and is discharged through an outlet 30 to the outside.

In den Figuren 1 und 2 ist im übrigen noch dargestellt, daß beispielsweise die Bürstenwalzen 8, 9 in den Drehachsen 14, 15 im Lagerbock 6 drehbar gelagert sind.In Figures 1 and 2 it is also shown that, for example, the Brush rollers 8, 9 rotatably supported in the bearing block 6 in the axes of rotation 14, 15 are.

Mit der beschriebenen Trockeneinrichtung wird also am Auslauf 30 ein mikrofeiner Wasserfilm auf allen Flächen des bandförmigen Folienschlauches 2 erzeugt, der die vorher beschriebenen Vorteile bei der Abstapelung der abgeschnittenen Folienscheiben bewirkt.The drying device described thus turns the outlet 30 into a microfine one Water film generated on all surfaces of the ribbon-shaped film tube 2, the the previously described advantages in stacking the cut Foil discs causes.

Die Bürstenwalzen 8,9,10,11 werden beispielsweise mit einer Umdrehungsgeschwindigkeit von 1100 Umdrehungen pro Minute angetrieben. Wegen dieser hohen Umdrehungszahl kommt es zu einem Abschleudern des Wassers aus dem Borstenbelag 12 und damit sammelt sich das Wasser im Sammelbehälter 26 an.The brush rollers 8,9,10,11 are, for example, with a Speed of rotation driven by 1100 revolutions per minute. Because of this high number of revolutions, the Water from the bristle coating 12 and thus the water collects in the Collection container 26.

Der Folienschlauch 2 wird hierbei, z. B. mit einer Geschwindigkeit von 70 m pro Minute durch die Trockeneinrichtung 1 hindurchgezogen.The film tube 2 is, for. B. at a speed of 70 m each Minute pulled through the drying device 1.

Die Dicke des Folienschlauches beträgt etwa 3 mm, die Breite kann z. B. 84 mm betragen, während die Länge praktisch unbegrenzt ist, weil es sich um einen kontinuierlichen Folienschlauch handelt. Die Bürstenwalzen 8 - 11 sind auswechselbar in den Lagerblöcken 6, 7 gehalten. The thickness of the film tube is about 3 mm, the width can e.g. B. 84 mm amount, while the length is practically unlimited because it is one continuous film tube. The brush rollers 8-11 are exchangeably held in the bearing blocks 6, 7.

Zeichnungs-LegendeDrawing Legend

11
Trockeneinrichtungdrying device
22
bandförmiger Folienschlauchribbon-shaped film tube
33
Pfeilrichtungarrow
44
Seitenplatteside plate
55
Seitenplatteside plate
66
Lagerblockbearing block
77
Lagerblockbearing block
88th
Bürstenwalzebrush roll
99
Bürstenwalzebrush roll
1010
Bürstenwalzebrush roll
1111
Bürstenwalzebrush roll
1212
Borstenbelagbristle covering
1313
KunststoffkörperPlastic body
1414
Drehachseaxis of rotation
1515
""
1616
Antriebsmotordrive motor
1717
Antriebsriemendrive belts
1818
Antriebsmotordrive motor
1919
Antriebsriemendrive belts
2020
Pfeilrichtungarrow
2121
""
2222
Überlappungsbereichoverlap area
2323
Stirnseitefront
2424
Antriebsraddrive wheel
2525
""
2626
SammelbehälterClippings
2727
Ablaufflächedrainage area
2828
Antriebsraddrive wheel
2929
""
3030
Auslaufoutlet

Claims (14)

  1. Drying device for product-filled ribbon-form foil tubes, which cooperates with a filling, forming, cooling, sealing, drying and cutting station and also with a stacking and final packing unit in an apparatus for packaging the foil tubes, wherein the drying station is configured as a cold or hot compressed-air drying unit, characterized in that the drying device (1) essentially consists of a housing which is open on one side and has side plates (4, 5) that are parallel and spaced apart, two bearing blocks (6, 7) with drive units being connected on the closed side of these side plates (4, 5), and brush rollers (8, 9, 10, 11), which are driven in contrarotation and through whose roller-gap the ribbon-form foil tube (2) is led in the direction of the arrow (3), being provided, the brush rollers (8, 9; 10, 11) being driven in the opposite direction to the transport direction of the foil tube (2).
  2. Drying device according to Claim 1, characterized in that the brush rollers (8, 9; 10, 11) facing one another overlap, and are configured with their bristles plunging into each other and interdigitating, in a region of overlap (22) through which the ribbon-form foil tube (2) passes.
  3. Drying device according to Claim 1 or Claim 2, characterized in that the drying device (1) consists of at least two opposing brush rollers (8, 9; 10, 11) with every two such rollers forming a roller pair with a single brush-gap.
  4. Drying device according to any one of Claims 1 to 3, characterized in that two or more such brush roller pairs (8, 9; 10, 11) with the brush rollers in each pair driven in contrarotation are juxtaposed one pair above the other.
  5. Drying device according to Claim 1, characterized in that a drive motor (16, 18) whose drive shaft is connected fixedly in rotation to an associated drive wheel (28, 29) is mounted in each bearing block (6, 7), a drive belt (17, 19) running over each such drive wheel (28, 29) and each such drive belt (17, 19) driving a pair of brush rollers (8, 9; 10, 11) via drive wheels (24, 25) provided thereon.
  6. Drying device according to any one of Claims 1 to 5, characterized in that each brush roller (8, 9; 10, 11) consists of a body (13) of plastic material which is mounted axially rotatably on a rotational axis (14, 15) and on which a bristle jacket (12) with radially outwards directed bristles is arranged fixedly in rotation.
  7. Drying device according to any one of Claims 1 to 6, characterized in that the ribbon-form foil tube (2), which has an approximately rectangular profile, is drawn upwards in the direction of the arrow (3) through the brush-gap of the brush pairs (8, 9; 10, 11), each brush pair (8, 9; 10, 11) being driven the opposite way to the transport direction (arrow 3) of the foil tube (2).
  8. Drying device according to any one of Claims 1 to 7, characterized in that the broad sides of the foil tube (2) are swept by the bristle jackets (12) of the individual brush rollers (8, 9, 10, 11), while the edge (23) of the foil tube (2) is additionally swept by the meshing bristles in the overlap region (22).
  9. Drying device according to any one of Claims 1 to 8, characterized in that the brush rollers (8, 9; 10, 11) arranged in pairs are driven in contrarotation in the directions indicated by the arrows (20, 21) by the single drive belt (17, 19) provided for each pair.
  10. Drying device according to Claim 1 or Claim 2, characterized in that the water swept off the foil tube (2) and forming in the casing runs down over a run-off surface (27) and collects in the sump (26) and is removable via a drain (30).
  11. Drying device according to any one of Claims 1 to 10, characterized in that the brush rollers (8, 9) are mounted rotatably in their rotational axes (14, 15) in the bearing block (6).
  12. Drying device according to any one of Claims 1 to 11, characterized in that the brush rollers (8, 9; 10, 11) are driven at a speed of preferably approx. 1100 revolutions per minute.
  13. Drying device according to any one of Claims 1 to 12, characterized in that the foil tube (2) is drawn through the drying device (1) at a speed of approx. 70 m per minute, its thickness is approx. 3 mm and its width is approx. 84 mm.
  14. Drying device according to any one of Claims 1 to 13, characterized in that the brush rollers (8, 9, 10, 11) are removably held in the bearing blocks (6, 7).
EP97100898A 1996-02-02 1997-01-22 Drying apparatus for filled tubular films Expired - Lifetime EP0787962B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19603717 1996-02-02
DE19603717A DE19603717C2 (en) 1996-02-02 1996-02-02 Drying device for filled, ribbon-shaped film tubes

Publications (3)

Publication Number Publication Date
EP0787962A2 EP0787962A2 (en) 1997-08-06
EP0787962A3 EP0787962A3 (en) 2000-09-06
EP0787962B1 true EP0787962B1 (en) 2003-08-20

Family

ID=7784318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97100898A Expired - Lifetime EP0787962B1 (en) 1996-02-02 1997-01-22 Drying apparatus for filled tubular films

Country Status (5)

Country Link
US (1) US5761826A (en)
EP (1) EP0787962B1 (en)
JP (1) JPH09310974A (en)
AT (1) ATE247810T1 (en)
DE (2) DE19603717C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7319479B1 (en) 2000-09-22 2008-01-15 Brickstream Corporation System and method for multi-camera linking and analysis
US7171024B2 (en) * 2003-12-01 2007-01-30 Brickstream Corporation Systems and methods for determining if objects are in a queue
CN106322872B (en) * 2016-09-07 2019-01-15 株洲瑞德尔冶金设备制造有限公司 A kind of metallurgy cooling air-drying mechanism
CN108729074B (en) * 2018-06-04 2020-11-06 义乌市鼎莎针织有限公司 Drying device is used in cloth processing
CN113091311B (en) * 2021-03-23 2022-05-03 中国水产科学研究院黄海水产研究所 Self-cleaning progressive water scale hot water tank for ship

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2378418A (en) * 1942-07-31 1945-06-19 Charles H Lister Fresh fruit treating machine
US2534205A (en) * 1947-07-03 1950-12-12 Johnson & Son Inc S C Apparatus for removing water by capillary action from moist perishables
US3542570A (en) * 1967-02-10 1970-11-24 Schreiber Cheese Co L D Process of manufacturing individually wrapped slices of extrudable products
DE2337281A1 (en) * 1973-07-23 1975-02-13 Gogas Goch & Co Compact dryer for plates and strips - has elastic surface rollers revolving at high speed for expelling moisture droplets
US4630407A (en) * 1984-05-29 1986-12-23 Rhodes Lynn R Method for finishing a thermoplastic coating
US4706325A (en) * 1986-07-09 1987-11-17 Michelson Manfred G Film cleaner
DE3634367A1 (en) * 1986-10-09 1988-04-21 Schloemann Siemag Ag ROLLER ARRANGEMENT FOR DEFORM-FREE TREATMENT OF MOVING TAPE-SHAPED PRODUCTS
DE4204396C2 (en) * 1992-02-14 1996-09-05 Natec Reich Summer Gmbh Co Kg Device for packing a mass in a film tube
DE4300439A1 (en) * 1993-01-09 1994-07-14 Egon Thumm Device for cleaning slats
GB2282463A (en) * 1993-09-10 1995-04-05 Manfred George Michelson Cleaning photographic film

Also Published As

Publication number Publication date
JPH09310974A (en) 1997-12-02
DE19603717A1 (en) 1997-08-07
DE19603717C2 (en) 1998-12-03
US5761826A (en) 1998-06-09
DE59710590D1 (en) 2003-09-25
EP0787962A3 (en) 2000-09-06
ATE247810T1 (en) 2003-09-15
EP0787962A2 (en) 1997-08-06

Similar Documents

Publication Publication Date Title
DE69630243T2 (en) METHOD AND DEVICE FOR PRODUCING SLICED CHEESE
DE68908306T2 (en) Method and device for making a laminated strip.
DE69218459T2 (en) METHOD AND DEVICE FOR FORMING A DISC OF A FOOD WITH AN ADHESIVE HOT SEAL
DE1296780B (en) Method for producing a fabric-like network from a film made of thermoplastic material
DE1611891A1 (en) Process for the production of individually packaged discs from extruded products
DD287451A5 (en) FORM FILLING LOCKING MACHINE FOR THE AUTOMATIC MANUFACTURE OF A PREFERRED NUMBER OF FILLED AND SEALED FINISHED PACKAGING
DE2951449A1 (en) METHOD AND DEVICE FOR PRODUCING DOUBLE-LAYERED RAILWAY MATERIAL
DE2322684A1 (en) DEVICE FOR CONTINUOUS DEFORMING OF RAIL MATERIAL
DE2201552A1 (en) Process for the production of strip-shaped material and device for carrying out the process
DE2224407A1 (en) DEVICE FOR MANUFACTURING PACKAGING OR CONTAINERS
DE2353887A1 (en) DEVICE FOR FEEDING A FILM STRIP OR DGL. IN ZIGZAG SHAPE
EP0787962B1 (en) Drying apparatus for filled tubular films
DE69311483T2 (en) Method and device for producing oriented plastic tapes
DE2853054A1 (en) Extruding droplets from pressurised container to form granulate - by forcing heated pressurised material through perforation onto steel belt beneath so as to cause cooling
DE2603487A1 (en) DEVICE FOR CONTINUOUS WELDING OF TUBE-SHAPED PLASTIC FILMS
DE3530508C2 (en)
DE2607211C3 (en) Strip cutting device for roller heads made of rubber or rubber-like material
DE2315405A1 (en) METHOD AND DEVICE FOR APPLYING A PLASTIC LAYER TO A FABRIC
DE68907475T2 (en) System for the continuous production of bags made of polypropylene, polyethylene, PVC or similar plastic materials.
DE69915463T2 (en) MACHINE FOR MANUFACTURING AND FILLING CONTAINERS
DE2553539C2 (en) Method and device for dividing a used pneumatic tire
DE19634759A1 (en) Process for producing a packaging and packaging which can be produced thereafter
DE2626410C2 (en) Method and apparatus for destroying photographic materials
DE508847C (en) Process for the production of stave-like and similar work pieces for barrels, buckets or the like from a raw material strip of fiber material
DE2145061C3 (en) Device for generating stiffening longitudinal waves in a material web

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 20001129

17Q First examination report despatched

Effective date: 20020612

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030820

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030820

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030820

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030820

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030820

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59710590

Country of ref document: DE

Date of ref document: 20030925

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: KIRKER & CIE SA

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031120

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031120

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040122

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040131

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20030820

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: *NATEC REICH SUMMER G.M.B.H. & CO. K.G.

Effective date: 20040131

26N No opposition filed

Effective date: 20040524

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050122

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: NATEC GMBH

Free format text: NATEC REICH, SUMMER GMBH & CO. KG#KOLPINGSTRASSE 32#88178 HEIMENKIRCH (DE) -TRANSFER TO- NATEC GMBH#KOLPINGSTRASSE 32#88178 HEIMENKIRCH (DE)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080128

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20071206

Year of fee payment: 12

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090131

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090801

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080125

Year of fee payment: 12

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091201

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091201