EP0292657A2 - Stretcher for thermal treatment of sheet-like materials in the width - Google Patents

Stretcher for thermal treatment of sheet-like materials in the width Download PDF

Info

Publication number
EP0292657A2
EP0292657A2 EP88103817A EP88103817A EP0292657A2 EP 0292657 A2 EP0292657 A2 EP 0292657A2 EP 88103817 A EP88103817 A EP 88103817A EP 88103817 A EP88103817 A EP 88103817A EP 0292657 A2 EP0292657 A2 EP 0292657A2
Authority
EP
European Patent Office
Prior art keywords
cooling air
tensioning
chain
heat treatment
guide rails
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.)
Granted
Application number
EP88103817A
Other languages
German (de)
French (fr)
Other versions
EP0292657A3 (en
EP0292657B1 (en
Inventor
Harry Gresens
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.)
Brueckner Trockentechnik GmbH and Co KG
Original Assignee
Brueckner Trockentechnik 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 Brueckner Trockentechnik GmbH and Co KG filed Critical Brueckner Trockentechnik GmbH and Co KG
Priority to AT88103817T priority Critical patent/ATE53079T1/en
Publication of EP0292657A2 publication Critical patent/EP0292657A2/en
Publication of EP0292657A3 publication Critical patent/EP0292657A3/en
Application granted granted Critical
Publication of EP0292657B1 publication Critical patent/EP0292657B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus

Definitions

  • the invention relates to a tensioning machine for the heat treatment of wide webs, in particular textile webs, according to the preamble of claim 1.
  • the tensioning chains intended for transporting the material webs through the machine often have to run at relatively high speeds, and they are also exposed to relatively high treatment temperatures.
  • the chain links of these tension chains are indeed provided with so-called high-temperature greases on their joints, the service life of which depends not only on the chain load but also to a considerable extent on the temperature load that is caused by the respective chain temperature.
  • the tensioning chain can only be cooled by a relatively small amount (for example by a relatively few ° C.), which cannot lead to an effective extension of the service life of high-temperature greases commonly used in tensioning chains, with the fact that the life expectancy is a function of the operating temperature of the grease.
  • the invention is therefore based on the object of providing a tensioning machine of the type required in the preamble of claim 1, which is characterized by a particularly effective cooling of the tensioning chains at a relatively low level Distinguished construction effort.
  • the cooling air inflators are only arranged approximately on the length of the longitudinal sections of the chain guide rails running within the web treatment fields. In practice, this means that the cooling air is blown at least onto the returning tensioning chain centers over a length which is considerably greater than the length of the inlet and outlet fields. This alone can bring about a significantly more effective and stronger cooling of the tension chains compared to known designs, so that this design according to the invention can also bring about a clearly visible gain in service life for the high-temperature greases used.
  • cooling air inflators are arranged in the interior of the heat treatment fields, where they cannot adversely affect the aforementioned assemblies and are therefore much more useful for the overall structure and maintenance of the tensioning machine for this reason alone.
  • the tensioning machine 1 is used for heat treatment, e.g. Drying and / or fixing, wide webs 2 (see Fig. 2), which are in particular textile webs.
  • the tensioning machine 1 is divided in its longitudinal direction into a number of successive fields, namely that it contains - in the direction of the web transport (arrow 2a) successively - a web inlet field 3, three heat treatment fields 4, 5, 6 and a web outlet field 7.
  • Two in 1 and 2 tension chains 8 and 9, which are only indicated by dash-dotted lines, are arranged endlessly in the longitudinal direction of the tensioning machine through all fields 3 to 7 and at a transverse distance from one another.
  • These tension chains 8, 9 can be designed in the usual way and in this case carry holding elements 11 on chain links 10 (see also FIG.
  • the tensioning machine 1 also contains two cooling air inflators 14 and 15, each of which is assigned to a chain guide rail 12 or 13. According to the invention, these cooling air inflators 14, 15 are only arranged approximately on the length of the longitudinal sections of the chain guide rails 12, 13 which run within the heat treatment fields 4, 5, 6. 3, the arrangement and design of the cooling air inflators 14, 15 is such that the used cooling air can be introduced into the heat treatment fields 4 to 6 as preheated fresh air.
  • the design and arrangement of the cooling air inflators 14, 15 is further provided so that the chain guide rail longitudinal sections running within the heat treatment fields 4, 5, 6 at least in their areas designed for the returning tensioning chain centers, for example 13a in FIG. 3, in each case one as Sheet metal channel 16, 17 serving cooling air guide channels are encapsulated, these sheet channels 16, 17 also being able to extend in the transverse direction at least above the chain guide rails 12, 13 and have an open connection to the interior of the associated heat treatment fields, so that - as in particular 3 shows - the used cooling air (cf. arrows BL in FIGS. 2 and 3) through the inner areas assigned to the leading tension chain centers, for example 13b, of the chain guide rails 12, 13 reaches the heat treatment fields.
  • each cooling air blower is connected to each sheet metal channel 16 or 17.
  • a cooling air connection piece 22 (see also FIG. 3) is attached to each end 16a, 16b and 17a, 17b of each sheet metal channel 16, 17, which is connected to the pressure side of the associated (separate) cooling air blower 18 to 21 .
  • cooling air can be blown in at long ends of the sheet metal ducts 16, 17 in the case of long tensioning machines, expediently in each case about 50% of the total Cooling air from the front and rear ends of the corresponding sheet metal duct.
  • each sheet metal channel is provided with a cooling air connecting piece which is connected to the pressure side of a single, associated cooling air blower.
  • each cooling air blower 18-21 can be supplied with cooling air from any suitable cooling air source. However, it has proven to be particularly expedient if each cooling air blower 18 to 21 is acted upon by cold room air or ambient air from the tensioning machine 1. High-pressure fans are particularly suitable as cooling air blowers for the cooling air inflators 14, 15.
  • the chain guide rails 12, 13 are completely closed in their longitudinal sections running inside the heat treatment fields 4, 5, 6 - except for the cooling air connecting piece 22.
  • an extremely reliable supply of the cooling air (see dashed arrows) into the sheet metal channels 16, 17 and from there directly to the tension chains 8, 9.
  • FIG. 3 there is only a cross section through the chain guide rail 13 and illustrates the tension chain 9 carried by it with its leading and returning runs 9a and 9b;
  • the other chain guide rail 12 and the tension chain 8 associated there are designed and arranged in a similar, mirror-image arrangement.
  • the measured values listed in the table were obtained by measuring the contact on the chain clips.
  • the table shows very clearly that with the aid of the tensioning machine 1, i.e. through the design and arrangement of the cooling air inflators 14 and 15 according to the invention, very effective cooling of the tension chains 8 and 9 can be achieved. If, for example, the temperatures of the chain clips at the tenter inlet are compared, then the temperature of the chain clips in the tenter at an air temperature (treatment air temperature) of 120 ° C. without cooling is 85 ° C., while it is only 52 ° C. with the cooling according to the invention, which is makes a difference of 33 ° C.
  • the significantly reduced temperature of the chain clips due to the cooling according to the invention can also be read from the temperature diagram in FIG.
  • the various treatment air temperature values (in ° C) within the tensioning machine 1 are entered on the ordinate and the chain clip temperature values (also in ° C), determined by contact measurement, are entered on the abscissa.
  • curve E shows the temperature values of the chain clips at the tensioner inlet
  • curve A shows the chain clip temperature values at the tensioner outlet, in each case with tension chains 8, 9 cooled according to the invention
  • curves E 'and A' illustrate the chain clip temperature values for uncooled tension chains.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Control Of Heat Treatment Processes (AREA)

Abstract

1. Tensioning machine for the heat treatment of lengths of material which are guided widthways, in particular lengths of textile material, containing a) a material inlet zone (3), a plurality of heat treatment zones (4 to 6) and a material outlet zone (7), all the zones being arranged in succession in the longitudinal direction of the tensioning machine (1), b) two tensioning chains (8, 9) which run continuously in the longitudinal direction of the tensioning machine through all the zones and are an oblique distance apart and on chain links (10) which are flexibly connected to one another bear holding elements (11) for gripping the two long edges of the lengths of material (2) to be treated, c) chain guide rails (12, 13) to support and guide the advancing and returning strands of the two tensioning chains, d) cooling air blowing arrangements (14, 15) which are associated with long sections of the chain guide rails at least in the region of the returning strand of the tensioning chain, characterised in that e) the cooling air blowing arrangements (14, 15) which are only arranged approximately on the length of the long sections of the chain guide rails (12, 13) which run inside the heat treatment zones (4, 5, 6), are constructed in such a way that these long sections of the chain guide rails are each enclosed at least in their outer regions (e.g. 13a) constructed for the returning strands of the tensioning chain in a sheet metal channel (16, 17) serving as a cooling air guide channel, and these channels also extend in the transverse direction at least above the chain guide rails (12, 13) and thus have an open connection to the interior of the appertaining heat treatment zones so that used cooling air is introduced into the heat treatment zones through the inner regions (e.g. 13b) of the chain guide rails (12, 13) associated with the advancing strands of the tensioning chain (e.g. 9a).

Description

Die Erfindung betrifft eine Spannmaschine zur Wärmebehandlung von breitgeführten Warenbahnen, insbesondere Textilbahnen, gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a tensioning machine for the heat treatment of wide webs, in particular textile webs, according to the preamble of claim 1.

In Spannmaschinen, insbesondere moderneren Spann­maschinen, müssen die zum Transport der Waren­bahnen durch die Maschine bestimmten Spannketten vielfach mit relativ hohen Geschwindigkeiten um­laufen, wobei sie außerdem noch relativ hohen Behandlungstemperaturen ausgesetzt sind. Die Ket­tenglieder dieser Spannketten sind an ihren Ge­lenken zwar mit sogenannten Hochtemperaturfetten versehen, deren Lebensdauer neben der Kettenbe­lastung auch in einem beträchtlichen Umfange von der Temperaturbelastung abhängt, die von der je­weiligen Kettentemperatur ausgeht.In tensioning machines, in particular modern tensioning machines, the tensioning chains intended for transporting the material webs through the machine often have to run at relatively high speeds, and they are also exposed to relatively high treatment temperatures. The chain links of these tension chains are indeed provided with so-called high-temperature greases on their joints, the service life of which depends not only on the chain load but also to a considerable extent on the temperature load that is caused by the respective chain temperature.

Man ist daher bestrebt, die Kettentemperatur möglichst niedrig zu halten, um dadurch die Le­bensdauer der verwendeten Hochtemperaturfette zu erhöhen. So ist es für diesen Zweck u.a. be­reits vorgeschlagen worden (DE-OS 35 26 584), bei einer Spannmaschine den Kettenführungsschie­nen in den Längsabschnitten, die sich im Bereich des Warenbahn-Einlaßfeldes und/oder des Waren­ bahn-Auslaßfeldes befinden, Kühlluft-Aufblasein­richtungen zuzuordnen. Auf diese Weise sollen vor allem die im Bereich außerhalb der Wärmebehand­lungsfelder verlaufenden Spannkettenabschnitte mit kalter Luft beblasen und dadurch etwas abge­kühlt werden. Bei der praktischen Durchführung dieser bekannten Spannmaschinenausbildung läßt sich die Spannkette jedoch nur um einen relativ kleinen Betrag (beispielsweise um relativ wenige °C) abkühlen, was zu keiner effektiven Verlänge­rung der Lebensdauer von üblicherweise bei Spann­ketten verwendeten Hochtemperaturfetten führen kann, wobei zu bedenken ist, daß die Lebensdauer­erwartung eine Funktion der Betriebstemperatur des Fettes ist.Efforts are therefore made to keep the chain temperature as low as possible in order to increase the service life of the high-temperature greases used. So it has already been proposed for this purpose (DE-OS 35 26 584), in a tensioning machine the chain guide rails in the longitudinal sections, which are in the area of the web inlet field and / or the goods web outlet field are to assign cooling air inflators. In this way, the tension chain sections running in the area outside the heat treatment fields are to be blown with cold air and thereby cooled somewhat. In the practical implementation of this known tensioner design, however, the tensioning chain can only be cooled by a relatively small amount (for example by a relatively few ° C.), which cannot lead to an effective extension of the service life of high-temperature greases commonly used in tensioning chains, with the fact that the life expectancy is a function of the operating temperature of the grease.

Als weiterer Nachteil der bekannten Spannmaschine sei erwähnt, daß dort die vor- und rücklaufenden Trums der Spannketten von unten her, d.h. durch in den Laufflächen vorgesehene Bohrungen mit Kühlluft beblasen werden. Die dafür notwendigen konstruktiven Maßnahmen im Bereich der Ketten­führungsschienen bedingen einen erheblichen zu­sätzlichen Bauaufwand.As a further disadvantage of the known tensioning machine it should be mentioned that there the forward and backward runs of the tensioning chains from below, i.e. be blown with cooling air through the holes provided in the treads. The structural measures required for this in the area of the chain guide rails require considerable additional construction work.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Spannmaschine der im Oberbegriff des Pa­tentanspruches 1 vorausgesetzten Art zu schaffen, die sich durch eine besonders wirkungsvolle Kühlung der Spannketten bei relativ niedrigem Bauaufwand auszeichnet.The invention is therefore based on the object of providing a tensioning machine of the type required in the preamble of claim 1, which is characterized by a particularly effective cooling of the tensioning chains at a relatively low level Distinguished construction effort.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

Im Gegensatz zu der eingangs geschilderten be­kannten Ausführung sind also bei der erfindungs­gemäßen Spannmaschine die Kühlluft-Aufblasein­richtungen nur etwa auf der Länge der innerhalb der Warenbahnbehandlungsfelder verlaufenden Längs­abschnitte der Kettenführungsschienen angeordnet. Dies bedeutet in der Praxis, daß die Kühlluft zumindest auf die rücklaufenden Spannkettentrums auf einer Länge aufgeblasen wird, die ganz be­trächtlich größer ist, als die Länge der Einlaß-­und Auslaßfelder. Allein hierdurch kann bereits eine gegenüber bekannten Ausführungen erheblich wirkungsvollere und stärkere Abkühlung der Spann­ketten herbeigeführt werden, so daß durch diese erfindungsgemäße Ausführung auch ein deutlich sichtbar werdender Gewinn an Lebensdauer für die verwendeten Hochtemperaturfette herbeigeführt werden kann.In contrast to the known embodiment described at the outset, in the tensioning machine according to the invention the cooling air inflators are only arranged approximately on the length of the longitudinal sections of the chain guide rails running within the web treatment fields. In practice, this means that the cooling air is blown at least onto the returning tensioning chain centers over a length which is considerably greater than the length of the inlet and outlet fields. This alone can bring about a significantly more effective and stronger cooling of the tension chains compared to known designs, so that this design according to the invention can also bring about a clearly visible gain in service life for the high-temperature greases used.

Ein weiterer Vorteil der erfindungsgemäßen Aus­führung wird aus folgendem Sachverhalt deutlich: Bei der oben geschilderten bekannten Spannmaschine wird die Kühlluft aus dem die Spannmaschine umge­benden Raum entnommen, auf die Spannketten (im Bereich des Einlaß- und/oder Auslaßfeldes) aufge­blasen und dann wieder in den umgebenden Raum ein­geführt. Bei den ohnehin hohen Wärmebelastungen in Textilveredelungsbetrieben ist dies eine sehr unangenehme und unerwünschte Begleiterscheinung. Da demgegenüber bei der erfindungsgemäßen Spann­maschine die Kühlluft auf die Spannketten nur im Bereich innerhalb der Wärmebehandlungsfelder auf­geblasen wird und dabei die verbrauchte Kühlluft als vorgewärmte Frischluft in die Wärmebehandlungs­felder eingeführt werden kann, treten bei dieser erfindungsgemäßen Ausführung weder unerwünschte Raumbelastungen (mit entsprechend aufgewärmter Kettenkühlungs-Abluft) noch Wärmeverluste auf. Die den Spannketten bei ihrer Kühlung entnommene Wärme kommt somit auf dem Wege der Frischluftzu­führung dem Wärmebehandlungsprozeß innerhalb der Spannmaschine unmittelbar zugute, so daß hier­durch die Wirtschaftlichkeit der Spannmaschine entsprechend erhöht werden kann.Another advantage of the embodiment according to the invention is clear from the following facts: In the known tensioning machine described above, the cooling air is removed from the space surrounding the tensioning machine, onto the tensioning chains (in Inflated area of the inlet and / or outlet field) and then reintroduced into the surrounding space. With the already high heat loads in textile finishing companies, this is a very unpleasant and undesirable side effect. In contrast, since with the tensioning machine according to the invention the cooling air is blown onto the tension chains only in the area within the heat treatment fields and the used cooling air can be introduced into the heat treatment fields as preheated fresh air, in this embodiment according to the invention neither undesirable space loads occur (with correspondingly warmed up chain cooling exhaust air) still heat losses. The heat removed from the tensioning chains during their cooling thus directly benefits the heat treatment process within the tensioning machine by way of the fresh air supply, so that the economy of the tensioning machine can be increased accordingly.

Bei Spannmaschinen ist ferner allgemein zu be­achten, daß die meisten warenführenden und Kettenservice-Baugruppen im Bereich der außen (außerhalb der Wärmebehandlungsfelder) befind­lichen Spannketten und Kettenführungsschienen vorgesehen sind, diese Bereiche also schon des­wegen für die Anbringung zusätzlicher Einrich­tungen, wie die Kühlluft-Aufblaseinrichtungen, ungeeignet erscheinen. Demgegenüber sind bei der vorliegenden Erfindung die Kühlluft-Aufblas­einrichtungen im Innern der Wärmebehandlungsfel­der angeordnet, wo sie die zuvor erwähnten Bau­gruppen nicht beeinträchtigen können und somit schon aus diesem Grunde dem Gesamtaufbau und der Wartung der Spannmaschine viel dienlicher sind.In the case of tensioning machines, it should also be noted in general that most goods-carrying and chain service assemblies are provided in the area of the tension chains and chain guide rails located outside (outside the heat treatment fields), which makes these areas unsuitable for the attachment of additional devices such as the cooling air inflators appear. In contrast are at According to the present invention, the cooling air inflators are arranged in the interior of the heat treatment fields, where they cannot adversely affect the aforementioned assemblies and are therefore much more useful for the overall structure and maintenance of the tensioning machine for this reason alone.

Weitere vorteilhafte Ausgestaltungen und Weiter­bildungen der Erfindung sind Gegenstand der Unteransprüche.Further advantageous refinements and developments of the invention are the subject of the dependent claims.

Die Erfindung sei im folgenden anhand der Zeich­nung näher erläutert. In der Zeichnung zeigen

  • Fig.1 eine ganz schematisch gehaltene (Teil-) Seitenansicht der erfindungsgemäßen Spannmaschine;
  • Fig.2 eine vereinfachte, schematische Auf­sicht auf die erfindungsgemäße Spann­maschine (bei abgedeckten Wärmebe­handlungsfeldern);
  • Fig.3 eine Querschnittsansicht etwa entlang der Linie III-III in Fig.2, darstellend einen Querschnitt durch eine Ketten­führungsschiene (mit Spannkette) in vergrößertem Maßstab;
  • Fig.4 ein Temperatur-Diagramm zur Gegen­überstellung gekühlter und ungekühlter Kluppen bei verschiedenen Lufttempe­raturen in der Spannmaschine.
The invention is explained in more detail below with reference to the drawing. Show in the drawing
  • 1 shows a very schematic (partial) side view of the tensioning machine according to the invention;
  • 2 shows a simplified, schematic plan view of the tensioning machine according to the invention (with covered heat treatment fields);
  • 3 shows a cross-sectional view approximately along the line III-III in FIG. 2, illustrating a cross section through a chain guide rail (with tension chain) on an enlarged scale;
  • 4 shows a temperature diagram to compare cooled and uncooled clips at different air temperatures in the stenter.

Anhand der Fig.1 und 2 sei zunächst der allge­meine Aufbau der erfindungsgemäßen Spannmaschine 1 erläutert. Die Spannmaschine 1 dient zur Wärme­behandlung, z.B. Trocknen und/oder Fixieren, von breitgeführten Warenbahnen 2 (vgl. Fig.2), bei denen es sich insbesondere um textile Warenbahnen handelt.1 and 2, the general structure of the tensioning machine 1 according to the invention is first explained. The tensioning machine 1 is used for heat treatment, e.g. Drying and / or fixing, wide webs 2 (see Fig. 2), which are in particular textile webs.

Die Spannmaschine 1 ist in ihrer Längsrichtung in eine Anzahl von aufeinanderfolgenden Feldern unterteilt, und zwar enthält sie - in Richtung des Warenbahn-Transports (Pfeil 2a) aufeinander­folgend - ein Warenbahneinlaßfeld 3, drei Wärme­behandlungsfelder 4, 5, 6 und ein Warenbahnaus­laßfeld 7. Zwei in den Fig.1 und 2 nur verein­facht strichpunktiert angedeutete Spannketten 8 und 9 sind in Spannmaschinen-Längsrichtung durch alle Felder 3 bis 7 endlos umlaufend und mit Querabstand voneinander angeordnet. Diese Spann­ketten 8, 9 können in üblicher Weise ausgeführt sein und dabei an gelenkig miteinander verbunde­nen Kettengliedern 10 (vgl. auch Fig.3) Halte­elemente 11 tragen, die gemäß Fig.3 in Form von bekannten Kluppen 11 oder ansonsten auch in Form von Nadelleisten oder kombinierten Kluppen ausgeführt sein können, um die beiden Längsränder der zu behandelnden Warenbahnen 2 während des Warenbahntransportes (an den vorlaufenden Trums der Spannketten) festzuhalten. Die vor- und rück­laufenden Trums beider Spannketten 8, 9 werden in zugeordneten, an sich bekannten Kettenfüh­rungsschienen 12, 13 geführt.The tensioning machine 1 is divided in its longitudinal direction into a number of successive fields, namely that it contains - in the direction of the web transport (arrow 2a) successively - a web inlet field 3, three heat treatment fields 4, 5, 6 and a web outlet field 7. Two in 1 and 2, tension chains 8 and 9, which are only indicated by dash-dotted lines, are arranged endlessly in the longitudinal direction of the tensioning machine through all fields 3 to 7 and at a transverse distance from one another. These tension chains 8, 9 can be designed in the usual way and in this case carry holding elements 11 on chain links 10 (see also FIG. 3) which are connected to one another in an articulated manner, which according to FIG combined clips can be carried out to hold the two longitudinal edges of the webs to be treated 2 during web transport (on the leading strands of the tension chains). The forward and return runs of both tension chains 8, 9 are guided in associated, known chain guide rails 12, 13.

Die Spannmaschine 1 enthält ferner zwei Kühlluft-­Aufblaseinrichtungen 14 und 15, die jeweils einer Kettenführungsschiene 12 bzw. 13 zugeordnet sind. Erfindungsgemäß sind diese Kühlluft-Aufblasein­richtungen 14, 15 nur etwa auf der Länge der innerhalb der Wärmebehandlungsfelder 4, 5, 6 verlaufenden Längsabschnitte der Kettenführungs­schienen 12, 13 angeordnet. Wie sich aus der detaillierteren Erläuterung zur Fig.3 noch er­geben wird, ist die Anordnung und Ausbildung der Kühlluft-Aufblaseinrichtungen 14, 15 dabei der­art, daß die verbrauchte Kühlluft als vorgewärmte Frischluft in die Wärmebehandlungsfelder 4 bis 6 eingeführt werden kann.The tensioning machine 1 also contains two cooling air inflators 14 and 15, each of which is assigned to a chain guide rail 12 or 13. According to the invention, these cooling air inflators 14, 15 are only arranged approximately on the length of the longitudinal sections of the chain guide rails 12, 13 which run within the heat treatment fields 4, 5, 6. 3, the arrangement and design of the cooling air inflators 14, 15 is such that the used cooling air can be introduced into the heat treatment fields 4 to 6 as preheated fresh air.

Die Ausbildung und Anordnung der Kühlluft-Auf­blaseinrichtungen 14, 15 ist dabei ferner so vorgesehen, daß die innerhalb der Wärmebehand­lungsfelder 4, 5, 6 verlaufenden Kettenführungs­schienen-Längsabschnitte zumindest in ihren für die rücklaufenden Spannkettentrums ausgebildeten Bereichen, z.B. 13a in Fig.3, in je einen als Kühlluft-Führungskanal dienenden Blechkanal 16, 17 eingekapselt sind, wobei diese Blechkanäle 16, 17 sich in Querrichtung auch zumindest oberhalb der Kettenführungsschienen 12, 13 noch erstrecken können und dabei eine offene Verbindung zum Innern der zugehörigen Wärmebehandlungsfelder aufweisen, so daß - wie sich insbesondere aus Fig.3 ergibt - die verbrauchte Kühlluft (vgl. Pfeile BL in Fig.2 und 3) durch die den vorlau­fenden Spannkettentrums zugeordneten inneren Bereiche, z.B. 13b, der Kettenführungsschienen 12, 13 in die Wärmebehandlungsfelder gelangt. Je nach Gesamtlänge der Spannmaschine 1 bzw. der Wärmebehandlungsfelder 4, 5, 6 und somit je nach Länge der Blechkanäle 16, 17 ist an jeden Blech­kanal 16 bzw. 17 wenigstens ein Kühlluftgebläse angeschlossen. Im Falle der Fig.1 und 2 sei an­genommen, daß es sich um eine relativ große Ge­samtlänge der Wärmebehandlungsfelder 4, 5, 6 handelt, so daß dort jedem Blechkanal 16, 17 zwei Kühlluftgebläse 18, 19 bzw. 20, 21 zuge­ordnet sind. Zweckmäßig ist dabei an jedem Ende 16a, 16b bzw. 17a, 17b jedes Blechkanales 16, 17 ein Kühlluft-Anschlußstutzen 22 (vgl. auch Fig.3) angebracht, der jeweils mit der Druckseite des zugehörigen (gesonderten) Kühlluftgebläses 18 bis 21 verbunden ist. Auf diese Weise kann bei langen Spannmaschinen an beiden Enden der Blech­kanäle 16, 17 Kühlluft eingeblasen werden, und zwar zweckmäßig jeweils etwa 50 % der gesamten Kühlluft vom vorderen und vom hinteren Ende des entsprechenden Blechkanales.The design and arrangement of the cooling air inflators 14, 15 is further provided so that the chain guide rail longitudinal sections running within the heat treatment fields 4, 5, 6 at least in their areas designed for the returning tensioning chain centers, for example 13a in FIG. 3, in each case one as Sheet metal channel 16, 17 serving cooling air guide channels are encapsulated, these sheet channels 16, 17 also being able to extend in the transverse direction at least above the chain guide rails 12, 13 and have an open connection to the interior of the associated heat treatment fields, so that - as in particular 3 shows - the used cooling air (cf. arrows BL in FIGS. 2 and 3) through the inner areas assigned to the leading tension chain centers, for example 13b, of the chain guide rails 12, 13 reaches the heat treatment fields. Depending on the total length of the tensioning machine 1 or the heat treatment fields 4, 5, 6 and thus depending on the length of the sheet metal channels 16, 17, at least one cooling air blower is connected to each sheet metal channel 16 or 17. In the case of FIGS. 1 and 2, it is assumed that there is a relatively large total length of the heat treatment fields 4, 5, 6, so that there two cooling air blowers 18, 19 and 20, 21 are assigned to each sheet metal duct 16, 17. Appropriately, a cooling air connection piece 22 (see also FIG. 3) is attached to each end 16a, 16b and 17a, 17b of each sheet metal channel 16, 17, which is connected to the pressure side of the associated (separate) cooling air blower 18 to 21 . In this way, cooling air can be blown in at long ends of the sheet metal ducts 16, 17 in the case of long tensioning machines, expediently in each case about 50% of the total Cooling air from the front and rear ends of the corresponding sheet metal duct.

Es versteht sich von selbst, daß bei kürzeren Spannmaschinen nur ein Ende jedes Blechkanales mit einem Kühlluft-Anschlußstutzen versehen ist, der mit der Druckseite eines einzigen, zugehöri­gen Kühlluftgebläses in Verbindung steht.It goes without saying that in the case of shorter clamping machines, only one end of each sheet metal channel is provided with a cooling air connecting piece which is connected to the pressure side of a single, associated cooling air blower.

Generell kann jedes Kühlluftgebläse 18 bis 21 mit Kühlluft von irgendeiner geeigneten Kühl­luftquelle beaufschlagt werden. Als besonders zweckmäßig hat es sich jedoch herausgestellt, wenn jedes Kühlluftgebläse 18 bis 21 mit kalter Raumluft bzw. Umgebungsluft der Spannmaschine 1 beaufschlagt wird. Als Kühlluftgebläse für die Kühlluft-Aufblaseinrichtungen 14, 15 sind vor allem Hochdruckventilatoren geeignet.In general, each cooling air blower 18-21 can be supplied with cooling air from any suitable cooling air source. However, it has proven to be particularly expedient if each cooling air blower 18 to 21 is acted upon by cold room air or ambient air from the tensioning machine 1. High-pressure fans are particularly suitable as cooling air blowers for the cooling air inflators 14, 15.

Wie sich der Querschnittsansicht in Fig.3 ent­nehmen läßt, sind die Kettenführungsschienen 12, 13 in ihren innerhalb der Wärmebehandlungs­felder 4, 5, 6 verlaufenden Längsabschnitten nach außen hin - bis auf die Kühlluft-Anschluß­stutzen 22 - vollkommen abgeschlossen. Auf diese Weise erfolgt eine äußerst zuverlässige Zuführung der Kühlluft (vgl. gestrichelte Pfeile) in die Blechkanäle 16, 17 und von dort unmittelbar an die Spannketten 8, 9. In Fig.3 ist lediglich ein Querschnitt durch die Kettenführungsschiene 13 und die von ihr getragene Spannkette 9 mit ihren vorlaufenden und rücklaufenden Trums 9a und 9b veranschaulicht; in gleichartiger, spiegelbild­licher Anordnung sind die andere Kettenführungs­schiene 12 und die dort zugehörige Spannkette 8 ausgebildet und angeordnet.As can be seen from the cross-sectional view in FIG. 3, the chain guide rails 12, 13 are completely closed in their longitudinal sections running inside the heat treatment fields 4, 5, 6 - except for the cooling air connecting piece 22. In this way, an extremely reliable supply of the cooling air (see dashed arrows) into the sheet metal channels 16, 17 and from there directly to the tension chains 8, 9. In FIG. 3 there is only a cross section through the chain guide rail 13 and illustrates the tension chain 9 carried by it with its leading and returning runs 9a and 9b; The other chain guide rail 12 and the tension chain 8 associated there are designed and arranged in a similar, mirror-image arrangement.

Bei den der Erfindung zugrundeliegenden Versuchen wurden Temperaturmessungen an der Spannmaschine bei verschiedenen Betriebstemperaturen, d.h. bei verschiedenen Behandlungsluft-Temperaturen an den Spannketten und dort insbesondere an den Kettenkluppen 11 durchgeführt, wobei - wie die nachfolgende Tabelle zeigt - die Temperatur­messungen an den Kettenkluppen 11 einmal ohne Spannkettenkühlung und einmal mit Spannketten­kühlung sowohl am Spannmaschineneinlaß als auch am Spannmaschinenauslaß vorgenommen worden sind.

Figure imgb0001
In the experiments on which the invention is based, temperature measurements were carried out on the tensioning machine at different operating temperatures, that is to say at different treatment air temperatures, on the tensioning chains and there in particular on the chain clips 11, the temperature measurements on the chain clips 11, as shown in the table below, once without tensioning chain cooling and once with tension chain cooling both at the tensioner inlet and at the tensioner outlet.
Figure imgb0001

Die in der Tabelle angeführten Meßwerte wurden erhalten durch eine Kontaktmessung an den Ketten­kluppen.The measured values listed in the table were obtained by measuring the contact on the chain clips.

Die Tabelle zeigt sehr deutlich, daß mit Hilfe der erfindungsgemäß ausgeführten Spannmaschine 1, d.h. durch die erfindungsgemäße Ausbildung und Anordnung der Kühlluft-Aufblaseinrichtungen 14 und 15 eine sehr effektive Kühlung der Spann­ketten 8 und 9 erzielt werden kann. Vergleicht man beispielsweise die Temperaturen der Ketten­kluppen am Spannmaschinen-Einlaß, dann beträgt die Temperatur der Kettenkluppen in der Spann­maschine bei einer Lufttemperatur (Behandlungs­lufttemperatur) von 120°C ohne Kühlung 85°C, während sie mit der erfindungsgemäßen Kühlung nur 52°C beträgt, was einen Unterschied von 33°C ausmacht. Bei den höheren Behandlungsluft­temperaturen in der Spannmaschine wirken sich diese Unterschiede zwischen nicht besonders ge­kühlten Kettenkluppen und erfindungsgemäß ge­kühlten Kettenkluppen noch deutlicher aus: Bei­spielsweise bei einer Behandlungslufttemperatur von 220°C weisen die Kluppenketten am Einlaß ohne Kühlung 148°C und mit erfindungsgemäßer Kühlung nur 82°C auf (also ein Unterschied von 66°C!).The table shows very clearly that with the aid of the tensioning machine 1, i.e. through the design and arrangement of the cooling air inflators 14 and 15 according to the invention, very effective cooling of the tension chains 8 and 9 can be achieved. If, for example, the temperatures of the chain clips at the tenter inlet are compared, then the temperature of the chain clips in the tenter at an air temperature (treatment air temperature) of 120 ° C. without cooling is 85 ° C., while it is only 52 ° C. with the cooling according to the invention, which is makes a difference of 33 ° C. At the higher treatment air temperatures in the tentering machine, these differences between chain clips not particularly cooled and chain clips cooled according to the invention have an even clearer effect: for example at a treatment air temperature of 220 ° C., the clip chains have 148 ° C. at the inlet without cooling and only 82 ° C. with cooling according to the invention on (a difference of 66 ° C!).

Diese in der Tabelle angeführten Temperatur­werte der Kettenkluppen bei den verschiedenen Behandlungslufttemperaturen in der Spannmaschine unterstreichen somit die besondere Wirksamkeit der erfindungsgemäßen Spannkettenkühlung, so daß die Lebensdauer der in den Spannkettengliedern verwendeten Hochtemperaturfette bei verbessertem Spannmaschinen-Wirkungsgrad und relativ einfachem konstruktiven Aufbau der Kühlluft-Aufblasein­richtungen 14, 15 erheblich verlängert werden kann.These temperature values of the chain clips at the different ones listed in the table Treatment air temperatures in the stenter thus underline the particular effectiveness of the tension chain cooling according to the invention, so that the service life of the high-temperature greases used in the tension chain links can be considerably extended with improved tensioner efficiency and a relatively simple structural design of the cooling air inflators 14, 15.

Die zuvor anhand der Tabelle erläuterte, deut­lich herabgesetzte Temperatur der Kettenkluppen aufgrund der erfindungsgemäßen Kühlung läßt sich auch aus dem Temperaturdiagramm in Fig.4 ab­lesen. In diesem Diagramm sind an der Ordinaten die verschiedenen Behandlungslufttemperaturwerte (in °C) innerhalb der Spannmaschine 1 und an der Abszisse die - durch Kontaktmessung festgestellten - Kettenkluppen-Temperaturwerte (ebenfalls in °C) eingetragen. In den wiedergegebenen Kurven dieses Diagrammes gemäß Fig.4 zeigt die Kurve E die Temperaturwerte der Kettenkluppen am Spann­maschinen-Einlaß und die Kurve A die Ketten­kluppen-Temperaturwerte am Spannmaschinenauslaß, jeweils bei erfindungsgemäß gekühlten Spannketten 8, 9, während die Kurven E′ und A′ die Ketten­kluppen-Temperaturwerte bei ungekühlten Spann­ketten veranschaulichen.The significantly reduced temperature of the chain clips due to the cooling according to the invention, previously explained with reference to the table, can also be read from the temperature diagram in FIG. In this diagram, the various treatment air temperature values (in ° C) within the tensioning machine 1 are entered on the ordinate and the chain clip temperature values (also in ° C), determined by contact measurement, are entered on the abscissa. In the curves shown in this diagram according to FIG. 4, curve E shows the temperature values of the chain clips at the tensioner inlet and curve A shows the chain clip temperature values at the tensioner outlet, in each case with tension chains 8, 9 cooled according to the invention, while curves E 'and A' illustrate the chain clip temperature values for uncooled tension chains.

Claims (5)

1. Spannmaschine zur Wärmebehandlung von breitge­führten Warenbahnen, insbesondere textilen Warenbahnen, enthaltend a) ein Warenbahn-Einlaßfeld (3), mehrere Wärme­behandlungsfelder (4 bis 6) und ein Waren­bahn-Auslaßfeld (7), wobei alle Felder in Längsrichtung der Spannmaschine (1) auf­einanderfolgend angeordnet sind, b) zwei in Spannmaschinen-Längsrichtung durch alle Felder endlos umlaufende, mit Quer­abstand voneinander angeordnete Spannketten (8, 9), die an gelenkig miteinander ver­bundenen Kettengliedern (10) Halteelemente (11) zum Festhalten der beiden Längsränder der zu behandelnden Warenbahnen (2) tragen, c) Kettenführungsschienen (12, 13) zum Ab­stützen und Führen der vor- und rücklaufen­den Trums beider Spannketten, d) Kühlluft-Aufblaseinrichtungen (14, 15), die Längsabschnitten der Kettenführungsschienen zumindest im Bereich der rücklaufenden Spannkettentrums zugeordnet sind, dadurch gekennzeichnet, daß e) die Kühlluft-Aufblaseinrichtungen (14, 15) nur etwa auf der Länge der innerhalb der Wärmebehandlungsfelder (4, 5, 6) verlau­fenden Längsabschnitte der Kettenführungs­schienen (12, 13) angeordnet sind, wobei verbrauchte Kühlluft (BL) als vorgewärmte Frischluft in die Wärmebehandlungsfelder einführbar ist. 1. Tensioning machine for the heat treatment of wide webs, in particular textile webs, containing a) a web inlet field (3), a plurality of heat treatment fields (4 to 6) and a web outlet field (7), all fields being arranged in succession in the longitudinal direction of the tensioning machine (1), b) two tensioning chains (8, 9) which run endlessly in the longitudinal direction of the tensioning machine through all the fields and which hold tensioning elements (11) on chain links (10) which are connected to one another in an articulated manner to hold the two longitudinal edges of the material webs to be treated (2) , c) chain guide rails (12, 13) for supporting and guiding the forward and returning runs of both tension chains, d) cooling air inflators (14, 15) which are assigned to longitudinal sections of the chain guide rails at least in the area of the returning tension chain center, characterized in that e) the cooling air inflators (14, 15) are only arranged approximately on the length of the longitudinal sections of the chain guide rails (12, 13) running within the heat treatment fields (4, 5, 6), with used cooling air (BL) being preheated fresh air into the Heat treatment fields can be introduced. 2. Spannmaschine nach Anspruch 1, dadurch gekenn­zeichnet, daß die innerhalb der Wärmebehandlungs­felder (4 bis 6) verlaufenden Kettenführungs­schienen-Längsabschnitte zumindest in ihren für die rücklaufenden Spannkettentrums (9b) ausgebildeten äußeren Bereichen (13a) in je einen als Kühlluft-Führungskanal dienenden Blechkanal (16, 17) eingekapselt sind, der eine offene Verbindung zum Innern der Wärme­behandlungsfelder aufweist und an wenigstens ein Kühlluftgebläse (18 bis 21) angeschlossen ist.2. Tensioning machine according to claim 1, characterized in that the chain guide rail longitudinal sections running within the heat treatment fields (4 to 6), at least in their outer regions (13b) designed for the returning tension chain center (9b), each in a sheet metal channel serving as a cooling air guide channel ( 16, 17) are encapsulated, which has an open connection to the interior of the heat treatment fields and is connected to at least one cooling air blower (18 to 21). 3. Spannmaschine nach Anspruch 2, dadurch gekenn­zeichnet, daß an einem Ende jedes Blechkanales ein Kühlluft-Anschlußstutzen angebaut ist, der mit der Druckseite eines Kühlluftgebläses in Verbindung steht.3. Clamping machine according to claim 2, characterized in that a cooling air connection piece is attached to one end of each sheet metal channel, which is connected to the pressure side of a cooling air blower. 4. Spannmaschine nach Anspruch 2, dadurch gekenn­zeichnet, daß an beiden Enden (16a, 16b, 17a, 17b) jedes Blechkanales (16, 17) je ein Kühl­luft-Anschlußstutzen (22) angebracht und jeder Kühlluft-Anschlußstutzen mit der Druckseite eines gesonderten Kühlluftgebläses (18 bis 21) verbunden ist.4. Clamping machine according to claim 2, characterized in that at both ends (16a, 16b, 17a, 17b) each sheet metal channel (16, 17) each have a cooling air connection piece (22) attached and each cooling air connection piece with the pressure side of a separate cooling air blower (18 to 21) is connected. 5. Spannmaschine nach Anspruch 2, dadurch gekenn­zeichnet, daß jedes Kühlluftgebläse mit kalter Raumluft beaufschlagbar ist.5. Clamping machine according to claim 2, characterized in that each cooling air blower can be acted upon with cold room air.
EP88103817A 1987-05-26 1988-03-10 Stretcher for thermal treatment of sheet-like materials in the width Expired - Lifetime EP0292657B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103817T ATE53079T1 (en) 1987-05-26 1988-03-10 TENSIONING MACHINE FOR THE HEAT TREATMENT OF WIDE-FEED WEBS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873717774 DE3717774A1 (en) 1987-05-26 1987-05-26 TENSIONER FOR THE HEAT TREATMENT OF WIDTH-BASED PRODUCTS
DE3717774 1987-05-26

Publications (3)

Publication Number Publication Date
EP0292657A2 true EP0292657A2 (en) 1988-11-30
EP0292657A3 EP0292657A3 (en) 1989-02-22
EP0292657B1 EP0292657B1 (en) 1990-05-23

Family

ID=6328480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103817A Expired - Lifetime EP0292657B1 (en) 1987-05-26 1988-03-10 Stretcher for thermal treatment of sheet-like materials in the width

Country Status (4)

Country Link
US (1) US4899427A (en)
EP (1) EP0292657B1 (en)
AT (1) ATE53079T1 (en)
DE (2) DE3717774A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925737A1 (en) * 1989-08-03 1991-02-07 Brueckner Trockentechnik Gmbh Stenter chain - has sliding units on clip or needle carriers in at least two sliding planes
ES2096630T3 (en) * 1990-08-23 1997-03-16 Nippon Petrochemicals Co Ltd STRETCHING MACHINE.
AU719339B2 (en) * 1996-07-30 2000-05-04 Kurt Dr. Muller Process and apparatus for the drying and shrinking of textile goods
ES2126862T3 (en) * 1995-01-31 1999-04-01 Kurt Dr Muller PROCEDURE AND DEVICE FOR DRYING AND CONTRACTION OF TEXTILE FABRIC.
JP4191855B2 (en) * 1999-08-24 2008-12-03 新日本石油株式会社 Method for producing transversely stretched nonwoven fabric and transversely stretched apparatus
DE10152539B4 (en) * 2001-10-24 2005-06-09 Koenig & Bauer Ag guide rail
US6936209B2 (en) * 2002-11-27 2005-08-30 3M Innovative Properties Company Methods and devices for processing polymer films
US8899408B2 (en) 2012-08-03 2014-12-02 Applied Materials, Inc. Temperature actuated tensioning mechanism
DE102012025487A1 (en) * 2012-12-20 2014-06-26 Brückner Maschinenbau GmbH & Co. KG Transport system, in particular Querreckanlage
WO2014094803A1 (en) 2012-12-20 2014-06-26 Brückner Maschinenbau GmbH & Co. KG Stretching unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB971737A (en) * 1961-01-01 1964-10-07 Dornier Gmbh Lindauer Stretching frame with travelling clip chains for stretching organic thermoplastic films
GB1015499A (en) * 1963-11-26 1966-01-05 Dornier Gmbh Lindauer Improvements in stretching machines for webs of plastics material
DE3526584A1 (en) * 1985-07-25 1987-02-05 Monforts Gmbh & Co A CLOTH TENSIONER

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327367A (en) * 1964-12-15 1967-06-27 Artos Meier Windhorst Kg Apparatus for thermic treatment of textile materials
DE8306640U1 (en) * 1983-03-08 1983-07-14 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg TENSIONER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB971737A (en) * 1961-01-01 1964-10-07 Dornier Gmbh Lindauer Stretching frame with travelling clip chains for stretching organic thermoplastic films
GB1015499A (en) * 1963-11-26 1966-01-05 Dornier Gmbh Lindauer Improvements in stretching machines for webs of plastics material
DE3526584A1 (en) * 1985-07-25 1987-02-05 Monforts Gmbh & Co A CLOTH TENSIONER

Also Published As

Publication number Publication date
ATE53079T1 (en) 1990-06-15
US4899427A (en) 1990-02-13
DE3860171D1 (en) 1990-06-28
EP0292657A3 (en) 1989-02-22
EP0292657B1 (en) 1990-05-23
DE3717774A1 (en) 1988-12-08

Similar Documents

Publication Publication Date Title
EP0292657B1 (en) Stretcher for thermal treatment of sheet-like materials in the width
DE843386C (en) Fabric tensioning and drying machine with slot nozzles that can be adjusted according to the different fabric widths
DE3703097C1 (en) Clip chain conveyor for endless rotating clamps in clamping frames
EP0989233B1 (en) Drying section and convection dryer for such a drying section
DE2320480A1 (en) TEXTILE HEAT TREATMENT DEVICE IN PARTICULAR CLAMPING FRAME
DE3854017T2 (en) Veneer dryer with opposing belts.
DE2607504C3 (en) Device for drying thin materials in pieces or webs in a continuous flow
DD206507A3 (en) DEVICE FOR GLAETTING AND DRYING HUMIDITY
EP0810413A1 (en) Drying and/or fixing apparatus
DE1729208B2 (en) Dryer for veneers, cardboard or the like
WO2003106754A1 (en) Stretching machine
DE3116836A1 (en) METHOD AND DEVICE FOR HOT-AIR DRYING TEXTILE GOODS
DE2808428B2 (en) Device for transporting moist veneers through one behind the other pre-drying and main drying zones
DE2833408C3 (en) Clip chain conveyor on a stenter frame
DD206312A3 (en) DEVICE FOR GLAETTING AND DRYING HUMIDITY
DE2612468A1 (en) Endless conveyor for drying oven - has endless travelling supporting grating running synchronously inside air permeable conveyor belt path
DE639453C (en) Drying device for tissue, paper or the like in sheet or tape form
CH280046A (en) Conveyor device for webs of paper, cellulose felt, fabric or the like.
DE8111908U1 (en) DEVICE FOR HOT-AIR DRYING A TRACK OF GOODS
AT158236B (en) Drying felt and drying group for paper machines.
DE2143774A1 (en) Fabric transport - with hooks at edges on chain drive system to hold fabric over powered roller
EP0616067A2 (en) Tenterdevice
EP0989077B1 (en) Conveyor track with rollers and roller chain therefor
DE7717141U1 (en) DEVICE FOR HEAT TREATMENT, IN PARTICULAR DRYING AND / OR SETTING, OF CONTINUOUSLY TRANSPORTED TEXTILE TRACKS
WO2003106753A1 (en) Stentering machine

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 DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT

17P Request for examination filed

Effective date: 19890622

17Q First examination report despatched

Effective date: 19890922

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: ING. FERRAROTTI GIOVANNI

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT

REF Corresponds to:

Ref document number: 53079

Country of ref document: AT

Date of ref document: 19900615

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REF Corresponds to:

Ref document number: 3860171

Country of ref document: DE

Date of ref document: 19900628

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

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990208

Year of fee payment: 12

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

Ref country code: AT

Payment date: 19990210

Year of fee payment: 12

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

Ref country code: GB

Payment date: 19990216

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: 19990528

Year of fee payment: 12

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

Ref country code: GB

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

Effective date: 20000310

Ref country code: AT

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

Effective date: 20000310

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000310

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

Ref country code: FR

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

Effective date: 20001130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

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

Effective date: 20010103

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: 20050310