EP0457273A1 - Apparatus for compressive shrinkage of textile materials - Google Patents

Apparatus for compressive shrinkage of textile materials Download PDF

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Publication number
EP0457273A1
EP0457273A1 EP91107791A EP91107791A EP0457273A1 EP 0457273 A1 EP0457273 A1 EP 0457273A1 EP 91107791 A EP91107791 A EP 91107791A EP 91107791 A EP91107791 A EP 91107791A EP 0457273 A1 EP0457273 A1 EP 0457273A1
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EP
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Prior art keywords
shrinking
roller
elastic
covering
goods
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EP91107791A
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German (de)
French (fr)
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EP0457273B1 (en
Inventor
Gerhard Dipl.-Ing. Ruckh
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DIPL.-ING. GERHARD RUCKH GMBH MASCHINENFABRIK
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Dipl-Ing Gerhard Ruckh Maschinenfabrik GmbH
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/04—Carriers or supports for textile materials to be treated
    • 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
    • D06C21/00—Shrinking by compressing

Definitions

  • the invention relates to a device for shrinking textile knitted fabrics, in particular tubular knitted fabrics, according to the preamble of patent claim 1.
  • the Sanfor process is known for shrinking knitted fabrics.
  • the knitted fabric is guided by means of a sanforizing cloth in the form of a thick felt or rubber blanket in a larger wrap angle around a bare heated sanforizing roll, the facing work surfaces of the roll and cloth being moved at different speeds.
  • a force acting in the direction of travel of the fabric is exerted on the knitted fabric, which leads to mechanical compression of the fabric and thus favors the shrinkage which occurs on the heated roller surface during drying.
  • a force perpendicular to this causes the surface of the goods to be compressed.
  • the invention is therefore based on the object of providing a device for shrinking textile knitwear which enables the knitwear to be treated uniformly on both sides on a single shrinking roller.
  • a shrinking roller with a felt, in particular elastic covering Due to the inventive design of a shrinking roller with a felt, in particular elastic covering, the two surfaces of the knitted fabric are treated in the same way together with a felt or similar shrinking cloth and thus obtain a full, voluminous appearance with a good grip.
  • a shrinking roller equipped with a suitable covering such as a bare roller, also has a favorable effect on the shrinking process. With the help of this shrinking unit it is possible to optimize high shrinkage values and a voluminous surface.
  • a roller covering which is arranged on an elastic intermediate layer stretched around the roller, for example a spring ring, has proven to be particularly advantageous.
  • This increased flexibility of the roller covering enables the knitted fabric to be compacted and shrunk more intensely, without flattening the surface.
  • Such a shrinking roller dampens the contact pressure of the goods against the roller, ie the pressing force is largely minimized, thereby improving the surface of the knitted fabric and reducing the risk that it will be impaired by squeezing or pressing folds during this shrinking process.
  • the shrinking system shown comprises on the inlet side a spreader 1 for a tubular material S, which can be fed in the usual way.
  • the spreader is adjustable in width and a drive roller 2 is used to drive it.
  • the tubular fabric stretched by means of the spreader then passes through a damping device 3 for shrinking the tubular fabric, which is then transported on by heated calender rolls 4.
  • the tubular goods arrive on an intermediate conveyor belt 6, which is arranged such that the tubular goods are transferred from the calender rollers to the conveyor belt via a sagging section 5.
  • This sagging section 5 passes through the light barrier pairs 7.
  • From the intermediate conveyor belt 6, the goods are fed on a shrinking flag 8 to the actual shrinking unit 10 and introduced into a shrinking channel 11.
  • the shrinking unit consists of an endless circumferential shrinking cloth 12 and a shrinking roller 14 which is wrapped around by the shrinking cloth at a predetermined angle.
  • the shrink cloth is made of felt or other known material and has a thickness of about 4 to 8 cm
  • the steam-heated shrinking roller is 14 also provided with a felt or the like covering 15, which expediently has a certain radial elasticity.
  • the shrinkage flag 8 for example a Teflon tape, extends in the exemplary embodiment approximately to the lower apex of the shrinking roller 14.
  • the main shrinkage zone adjoins this shrinkage flag 8 in a region of the angle ⁇ which is on the inlet side of the shrinkage flag 8 and on the outlet side of one Printing roller 19 is limited and should not be larger than about 90 ° if possible. If the shrink flag is shorter, the main shrink zone can also begin before the apex.
  • the shrinkage flag 8 causes an increased shrinkage, which can be explained by the fact that the goods are additionally compressed on the hard edge of the Teflon cloth and mechanically shrunk in this way.
  • the actual shrinkage is brought about by the fact that the shrinking roller 14 and the shrinking cloth 12 move past one another at different speeds, thereby compressing the tubular goods, pushing them together and thus compressively shrinking. As a rule, the surface speed of the shrinking roller is higher than that of the shrinking cloth.
  • the shrinking cloth In order to obtain a suitable wrapping around the shrinking roller 14 by the shrinking cloth 12, the shrinking cloth is guided over a drive roller 17 and over the deflecting rollers 18.
  • the adjustable pressure roller 19 is used to press the shrink cloth against the shrink roller and limits the effective length of the shrink channel.
  • the tubular goods in turn pass through a hanging section 20 to an outlet conveyor belt 21, rollers 22 which are arranged to be counter-adjustable in height and finally to a stacking table 23 which carries out translation movements for stacking the goods.
  • shrinking roller 14 Due to the shrinking roller 14 provided with an elastic covering, hard treatment of the knitted fabric is also avoided on this side of the fabric and an optimal surface is achieved. In addition, this shrinking unit becomes a flat press the side edges of the tubular goods prevented. The tubular goods are thus equipped in the same way on both sides during a pass. This means that just one shrinking unit is sufficient for an optimally shrunk and treated knitwear. This shrinking unit can be used for both tubular and open knitted fabrics.
  • steam is introduced into the shrinking roller 14 via a pipeline 30, which condenses on the roller wall.
  • An overflow pipe 31 ensures a constant water level 32.
  • the surface temperature of the shrinking roller is approximately 60 ° C to 80 ° C. 3, the surface structure of a shrinking roller 14 is shown enlarged.
  • a spring ring 36 which is elastic in the radial direction and made up of individual interlocking spring elements 37, preferably made of spring steel, is clamped onto a roller jacket 35, and a cover 15 ', advantageously made of felt or wool, is pulled over it. This cushioning or resilience of the roller covering 15 creates an alternative for the knitted fabric to be shrunk, so that pinch folds are thereby avoided even with increased contact pressure.
  • an elastic intermediate layer can also be formed from a foam rubber, foam or the like soft layer or also from an air-filled base.
  • a similar elastic effect as the spring ring can also be achieved by a correspondingly thickened felt or rubber covering, if at least its lower layer on the roller side is of a soft consistency.
  • the goods entry and exit can be controlled inexpensively by a light barrier control.
  • the light barrier control works in intervals from 0.5 seconds to 10 seconds depending on the presetting and machine speed.
  • the transmitter and receiver are arranged at almost 90 ° to the direction of the goods. Because they are not exactly perpendicular to it, the response time to times significantly above msec. lying, enlarged. In this way, each passage of goods through the light barriers can be detected and processed by the computer control program.
  • the light barriers 7 regulate the falling angle of the knitted fabric during the transfer from the calender rollers 4 to the intermediate conveyor belt 6. Depending on whether the lower or upper pair of light barriers responds, the speeds on the spreader drive and on the calender rollers are reduced or increased. With the light barriers 7 ', which are arranged after the shrinking unit, the control impulse for speed changes is triggered on the tafler. Because the light barriers are arranged in sagging areas, not only the flow of goods can be set with this regulation, but also the advance of the goods through the sag control.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Laminated Bodies (AREA)

Abstract

In an apparatus for compressive shrinking of flat or tubular textile knitwear, on which the knitwear is shrunk in a shrinking channel (11) formed by a shrinking roller (14) and a shrinking cloth (12) partly surrounding this roller, the shrinking roller (14) is covered with a covering 15 that is elastic in radial direction, advisably with a surface made of felt or wool, for improving the roller-facing surface of the knitwear, so that the knitwear is worked simultaneously from both sides by e.g. felt surfaces and thereby compressively shrunk. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Krumpfen textiler Maschenware, insbesondere von schlauchförmiger Maschenware, gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a device for shrinking textile knitted fabrics, in particular tubular knitted fabrics, according to the preamble of patent claim 1.

Zum Krumpfen textiler Maschenware ist das Sanforverfahren bekannt. Hierbei wird die Maschenware mittels eines Sanforisiertuches in Form eines dicken Filz- oder Gummituches in einem größeren Umschlingungswinkel um eine blanke beheizte Sanforisierwalze geführt, wobei die zueinandergekehrten Arbeitsflächen von Walze und Tuch mit unterschiedlicher Geschwindigkeit bewegt werden. Dadurch wird auf die Maschenware eine in Warenlaufrichtung wirkende Kraft ausgeübt, die zum mechanischen Zusammenstauchen der Ware führt und damit das während des Trocknens auf der beheizten Walzenfläche eintretende Krumpfen begünstigt. Eine hierzu senkrecht stehende Kraft bewirkt hingegen das Zusammenpressen der Warenoberfläche. Da die Qualitätsanforderungen an eine Maschenware in geringen Restkrumpfwerten sowie in einer flauschigen, voluminösen Oberfläche bestehen, wird ein möglichst hoher Schrumpfeffekt bei möglichst geringer Preßwirkung angestrebt. Mit einer blanken Metallwalze werden zwar gute Krumpfwerte erzielt, jedoch muß auch ein starkes Flachpressen der Warenoberfläche mit einem brettähnlichen, flachgedrückten Aussehen hingenommen werden. Vor allem bei dunkler Ware zeigt die walzenseitige Warenoberfläche unerwünschte Reflektionen, so daß die gesamte Oberfläche unruhig und inhomogen erscheint. Für eine offene Maschenware mag dieses Ergebnis in manchen Fällen den gestellten Anforderungen genügen, bei Schlauchware ist aber eine unterschiedliche Außenfläche am Warenschlauch nicht annehmbar. Damit nun beide Oberflächen der Maschenware die gleiche Oberflächenqualität aufweisen, ist es erforderlich, zwei Sanforisierstationen einzusetzen.The Sanfor process is known for shrinking knitted fabrics. Here, the knitted fabric is guided by means of a sanforizing cloth in the form of a thick felt or rubber blanket in a larger wrap angle around a bare heated sanforizing roll, the facing work surfaces of the roll and cloth being moved at different speeds. As a result, a force acting in the direction of travel of the fabric is exerted on the knitted fabric, which leads to mechanical compression of the fabric and thus favors the shrinkage which occurs on the heated roller surface during drying. On the other hand, a force perpendicular to this causes the surface of the goods to be compressed. Since the quality requirements for a knitted fabric consist in low residual shrinkage values and in a fluffy, voluminous surface, the highest possible shrinkage effect with the least possible pressing effect is sought. Good shrinkage values are achieved with a bare metal roller, but a strong flat pressing of the surface of the goods with a board-like, flattened appearance must also be accepted. Especially with dark goods, the roller side shows Unwanted reflections on the surface of the goods, so that the entire surface appears restless and inhomogeneous. For open knitwear, this result may meet the requirements in some cases, but for tubular goods, a different outer surface on the fabric hose is not acceptable. So that both surfaces of the knitted fabric now have the same surface quality, it is necessary to use two sanforizing stations.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zum Krumpfen textiler Maschenware zu schaffen, die ein beidseitig gleichmäßiges Behandeln der Maschenware an einer einzigen Krumpfwalze ermöglicht.The invention is therefore based on the object of providing a device for shrinking textile knitwear which enables the knitwear to be treated uniformly on both sides on a single shrinking roller.

Diese Aufgabe wird an einer Vorrichtung gemäß dem Oberbegriff des Patentanspruches 1 erfindungsgemäß durch die Kennzeichnungsmerkmale dieses Patentanspruches gelöst.This object is achieved in a device according to the preamble of claim 1 according to the invention by the characterizing features of this claim.

Vorteilhafte Weiterentwicklungen der Erfindung sind in Unteransprüchen beansprucht.Advantageous further developments of the invention are claimed in the subclaims.

Durch die erfindungsgemäße Ausbildung einer Krumpfwalze mit einem Filz-, insbesondere elastischen Belag werden zusammen mit einem Filz- od. dgl. Krumpftuch die beiden Oberflächen der Maschenware in gleicher Weise behandelt und erhalten so ein volles voluminöses Aussehen mit einer griffigen Beschaffenheit. Überraschenderweise zeigte es sich, daß auch eine mit geeignetem Belag ausgerüstete Krumpfwalze wie eine blanke Walze den Krumpfvorgang günstig beeinflußt. Mit Hilfe dieser Krumpfeinheit ist es möglich, hohe Krumpfwerte und eine voluminöse Oberfläche zu optimieren.Due to the inventive design of a shrinking roller with a felt, in particular elastic covering, the two surfaces of the knitted fabric are treated in the same way together with a felt or similar shrinking cloth and thus obtain a full, voluminous appearance with a good grip. Surprisingly, it was found that a shrinking roller equipped with a suitable covering, such as a bare roller, also has a favorable effect on the shrinking process. With the help of this shrinking unit it is possible to optimize high shrinkage values and a voluminous surface.

Als besonders vorteilhaft hat sich ein Walzenbelag erwiesen, der auf einer elastischen um die Walze gespannten Zwischenlage, z.B. einem Federring angeordnet ist. Diese erhöhte Nachgiebigkeit des Walzenbelages ermöglicht nämlich ein verstärktes Kompaktieren und Krumpfen der Maschenware, ohne die Oberfläche flachzupressen. Eine solche Krumpfwalze dämpft den Anpreßdruck der Ware an die Walze, d.h. die Preßkraft wird weitgehend minimiert, dadurch die Oberfläche der Maschenware verbessert und die Gefahr vermindert, daß sie während dieses Krumpfvorganges durch Quetsch- oder Preßfalten beeinträchtigt wird.A roller covering, which is arranged on an elastic intermediate layer stretched around the roller, for example a spring ring, has proven to be particularly advantageous. This increased flexibility of the roller covering enables the knitted fabric to be compacted and shrunk more intensely, without flattening the surface. Such a shrinking roller dampens the contact pressure of the goods against the roller, ie the pressing force is largely minimized, thereby improving the surface of the knitted fabric and reducing the risk that it will be impaired by squeezing or pressing folds during this shrinking process.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels, das auch in der Zeichnung schematisiert dargestellt ist, näher beschrieben. Es zeigen:

Fig. 1
eine Schemadarstellung einer Krumpfanlage,
Fig. 2
einen Axialschnitt durch eine teilweise gezeigte Krumpfwalze und
Fig. 3
einen Schnitt durch ein Walzensegment.
The invention is described below with reference to an embodiment which is also shown schematically in the drawing. Show it:
Fig. 1
a schematic representation of a shrinking system,
Fig. 2
an axial section through a partially shown shrink roller and
Fig. 3
a section through a roller segment.

Die dargestellte Krumpfanlage umfaßt auf der Einlaufseite einen Breithalter 1 für eine Schlauchware S, die in üblicher Weise zugeführt werden kann. Der Breithalter ist breitenverstellbar und zu seinem Antrieb dient eine Antriebsrolle 2. Die mittels des Breithalters gestreckte Schlauchware passiert hierauf eine Dämpfeinrichtung 3 zum Vorkrumpfen der Schlauchware, die dann von beheizten Kalanderwalzen 4 weitertransportiert wird. Nach diesen Kalanderwalzen gelangt die Schlauchware auf ein Zwischentransportband 6, das so angeordnet ist, daß die Überführung der Schlauchware von den Kalanderwalzen auf das Transportband über einen Durchhängeabschnitt 5 erfolgt. Dieser Durchhängeabschnitt 5 durchquert die Lichtschrankenpaare 7. Vom Zwischentransportband 6 wird die Ware auf einer Krumpffahne 8 der eigentlichen Krumpfeinheit 10 zugeführt und in einen Krumpfkanal 11 eingeleitet. Die Krumpfeinheit besteht aus einem endlosen umlaufenden Krumpftuch 12 und einer Krumpfwalze 14, die in einem vorbestimmten Winkel vom Krumpftuch umschlungen wird. Während das Krumpftuch beispielsweise aus Filz oder anderem bekannten Material besteht und eine Dicke von etwa 4 bis 8 cm aufweist, ist die dampfbeheizte Krumpfwalze 14 ebenfalls mit einem Filz- od. dgl. Belag 15, der zweckmäßig eine gewisse radiale Elastizität aufweist, versehen. Die Krumpffahne 8, beispielsweise ein Teflonband, reicht beim Ausführungsbeispiel etwa bis zum unteren Scheitelpunkt der Krumpfwalze 14. An diese Krumpffahne 8 schließt sich die Hauptkrumpfzone in einem Bereich des Winkels β an, der auf der Einlaufseite von der Krumpffahne 8 und auf der Auslaufseite von einer Druckwalze 19 begrenzt wird und möglichst nicht größer als etwa 90° sein soll. Ist die Krumpffahne kürzer, kann die Hauptkrumpfzone auch vor dem Scheitelpunkt beginnen. Die Krumpffahne 8 bewirkt eine verstärkte Krumpfung, die sich damit erklären läßt, daß an der harten Kante des Teflontuchs die Ware zusätzlich gestaucht und auf diese Weise mechanisch gekrumpft wird. Die eigentliche Krumpfung wird aber dadurch bewirkt, daß sich Krumpfwalze 14 und Krumpftuch 12 mit unterschiedlicher Geschwindigkeit aneinander vorbeibewegen, dadurch die Schlauchware stauchen, zusammenschieben und so kompressiv schrumpfen. In der Regel ist die Oberflächengeschwindigkeit der Krumpfwalze höher als die des Krumpftuches.The shrinking system shown comprises on the inlet side a spreader 1 for a tubular material S, which can be fed in the usual way. The spreader is adjustable in width and a drive roller 2 is used to drive it. The tubular fabric stretched by means of the spreader then passes through a damping device 3 for shrinking the tubular fabric, which is then transported on by heated calender rolls 4. After these calender rolls, the tubular goods arrive on an intermediate conveyor belt 6, which is arranged such that the tubular goods are transferred from the calender rollers to the conveyor belt via a sagging section 5. This sagging section 5 passes through the light barrier pairs 7. From the intermediate conveyor belt 6, the goods are fed on a shrinking flag 8 to the actual shrinking unit 10 and introduced into a shrinking channel 11. The shrinking unit consists of an endless circumferential shrinking cloth 12 and a shrinking roller 14 which is wrapped around by the shrinking cloth at a predetermined angle. For example, while the shrink cloth is made of felt or other known material and has a thickness of about 4 to 8 cm, the steam-heated shrinking roller is 14 also provided with a felt or the like covering 15, which expediently has a certain radial elasticity. The shrinkage flag 8, for example a Teflon tape, extends in the exemplary embodiment approximately to the lower apex of the shrinking roller 14. The main shrinkage zone adjoins this shrinkage flag 8 in a region of the angle β which is on the inlet side of the shrinkage flag 8 and on the outlet side of one Printing roller 19 is limited and should not be larger than about 90 ° if possible. If the shrink flag is shorter, the main shrink zone can also begin before the apex. The shrinkage flag 8 causes an increased shrinkage, which can be explained by the fact that the goods are additionally compressed on the hard edge of the Teflon cloth and mechanically shrunk in this way. The actual shrinkage is brought about by the fact that the shrinking roller 14 and the shrinking cloth 12 move past one another at different speeds, thereby compressing the tubular goods, pushing them together and thus compressively shrinking. As a rule, the surface speed of the shrinking roller is higher than that of the shrinking cloth.

Um eine geeignete Umschlingung der Krumpfwalze 14 durch das Krumpftuch 12 zu erhalten, wird das Krumpftuch über eine Antriebswalze 17 und über die Umlenkwalzen 18 geführt. Die einstellbare Druckwalze 19 dient zum Anpressen des Krumpftuches an die Krumpfwalze und begrenzt die Wirklänge des Krumpfkanales. Vom Krumpftuch gelangt schließlich die Schlauchware wiederum über einen Hängeabschnitt 20 auf ein Auslauftransportband 21, von diesem zu kontrarotierenden höhenverstellbar angeordneten Walzen 22 und schließlich auf einen Stapeltisch 23, der zum Abtafeln der Ware Translationsbewegungen ausführt.In order to obtain a suitable wrapping around the shrinking roller 14 by the shrinking cloth 12, the shrinking cloth is guided over a drive roller 17 and over the deflecting rollers 18. The adjustable pressure roller 19 is used to press the shrink cloth against the shrink roller and limits the effective length of the shrink channel. Finally, from the shrink cloth, the tubular goods in turn pass through a hanging section 20 to an outlet conveyor belt 21, rollers 22 which are arranged to be counter-adjustable in height and finally to a stacking table 23 which carries out translation movements for stacking the goods.

Durch die mit elastischem Belag versehene Krumpfwalze 14 wird ein hartes Behandeln der Maschenware auch auf dieser Warenseite vermieden und eine optimale Oberfläche erzielt. Außerdem wird durch diese Krumpfeinheit ein Flachpressen der Seitenkanten der Schlauchware verhindert. Die Schlauchware wird also während eines Durchlaufes auf beiden Seiten in gleicher Weise ausgerüstet. Dies bedeutet, daß bereits eine Krumpfeinheit für eine optimal gekrumpfte und behandelte Maschenware ausreicht. Diese Krumpfeinheit kann sowohl für Schlauch- als auch für offene Maschenware eingesetzt werden.Due to the shrinking roller 14 provided with an elastic covering, hard treatment of the knitted fabric is also avoided on this side of the fabric and an optimal surface is achieved. In addition, this shrinking unit becomes a flat press the side edges of the tubular goods prevented. The tubular goods are thus equipped in the same way on both sides during a pass. This means that just one shrinking unit is sufficient for an optimally shrunk and treated knitwear. This shrinking unit can be used for both tubular and open knitted fabrics.

Wie aus Fig. 2 ersichtlich ist, wird in die Krumpfwalze 14 über eine Rohrleitung 30 Dampf eingeleitet, der an der Walzenwand kondensiert. Ein Überlaufrohr 31 sorgt für einen gleichmäßigen Wasserstand 32. Die Oberflächentemperatur der Krumpfwalze beträgt etwa 60 °C bis 80 °C. In Fig. 3 ist der Oberflächenaufbau einer Krumpfwalze 14 vergrößert dargestellt. Auf einem Walzenmantel 35 ist ein in Radialrichtung elastischer Federring 36 aus einzelnen ineinandergreifenden Federelementen 37, vorzugsweise aus Federstahl, aufgespannt, über den ein Überzug 15', zweckmäßig aus Filz oder Wolle, aufgezogen ist. Durch diese Abfederung bzw. Nachgiebigkeit des Walzenbelages 15 wird eine Ausweichmöglichkeit für die zu krumpfende Maschenware geschaffen, so daß hierdurch Quetschfalten auch bei erhöhtem Anpreßdruck vermieden werden. Anstelle des gezeigten Federringes 36 kann eine elastische Zwischenlage auch von einer Moosgummi-, Schaumstoff- od. dgl. weichen Schicht oder auch von einer luftgefüllten Unterlage gebildet sein. Eine ähnliche elastische Wirkung wie der Federring kann auch durch einen entsprechend verdickten Filz- oder Gummibelag erreicht werden, wenn zumindest dessen walzenseitige Unterschicht von weicher Konsistenz ist.As can be seen from FIG. 2, steam is introduced into the shrinking roller 14 via a pipeline 30, which condenses on the roller wall. An overflow pipe 31 ensures a constant water level 32. The surface temperature of the shrinking roller is approximately 60 ° C to 80 ° C. 3, the surface structure of a shrinking roller 14 is shown enlarged. A spring ring 36, which is elastic in the radial direction and made up of individual interlocking spring elements 37, preferably made of spring steel, is clamped onto a roller jacket 35, and a cover 15 ', advantageously made of felt or wool, is pulled over it. This cushioning or resilience of the roller covering 15 creates an alternative for the knitted fabric to be shrunk, so that pinch folds are thereby avoided even with increased contact pressure. Instead of the spring ring 36 shown, an elastic intermediate layer can also be formed from a foam rubber, foam or the like soft layer or also from an air-filled base. A similar elastic effect as the spring ring can also be achieved by a correspondingly thickened felt or rubber covering, if at least its lower layer on the roller side is of a soft consistency.

Durch eine Lichtschrankenregelung läßt sich der Wareneinlauf und -auslauf günstig steuern. Die Lichtschranken 7, die vor der Krumpfeinheit angeordnet sind, steuern die Menge der zuzuführenden Maschenware. Wird nämlich über die Kalanderwalzen 4 zuviel Ware gefördert, kommt diese in Falten in die Krumpfeinheit. Dort wird dann keine Krumpfung erzielt, sondern es werden lediglich Quetschfalten in die Ware gepreßt. Wird dagegen zuwenig Ware gefördert, so beeinflußt eine unter Spannung zugeführte Ware den Krumpfprozeß ungünstig. Um eine für die Krumpfung optimale Warenzufuhr zu erhalten und um auch eine den Ansprüchen meist nicht genügende Handregelung zu ersetzen, arbeitet die Lichtschrankenregelung in Intervallen im Bereich von 0,5 sec. bis 10 sec. je nach Voreinstellung und Maschinengeschwindigkeit. Sender und Empfänger sind in nahezu 90° zur Warenlaufrichtung angeordnet. Dadurch, daß sie nicht genau senkrecht dazu stehen, wird die Ansprechzeit auf Zeiten, die erheblich oberhalb msec. liegen, vergrößert. Auf diese Weise kann jeder Warendurchgang durch die Lichtschranken vom Computer-Steuerungsprogramm erfaßt und verarbeitet werden. Die Lichtschranken 7 regeln den Fallwinkel der Maschenware bei der Übergabe von den Kalanderwalzen 4 auf das Zwischentransportband 6. Je nachdem, ob das untere oder obere Lichtschrankenpaar anspricht, werden die Geschwindigkeiten am Breithalterantrieb und an den Kalanderwalzen verringert oder erhöht. Mit den Lichtschranken 7', die nach der Krumpfeinheit angeordnet sind, wird der Regelimpuls für Geschwindigkeitsänderungen am Tafler ausgelöst. Dadurch, daß die Lichtschranken in Durchhängebereichen angeordnet sind, kann mit dieser Regelung nicht nur der Warenfluß, sondern durch die Durchhangsteuerung auch die Voreilung der Ware eingestellt werden.The goods entry and exit can be controlled inexpensively by a light barrier control. The light barriers 7, which are arranged in front of the shrinking unit, control the amount of knitwear to be fed. If too much goods are conveyed via the calender rolls 4, they come into folds in the shrinking unit. There will be no shrinkage there achieved, but only pinch folds are pressed into the goods. If, on the other hand, too little product is conveyed, a product supplied under tension affects the shrinking process unfavorably. In order to obtain an optimal supply of goods for the shrinkage and also to replace a manual control that usually does not meet the requirements, the light barrier control works in intervals from 0.5 seconds to 10 seconds depending on the presetting and machine speed. The transmitter and receiver are arranged at almost 90 ° to the direction of the goods. Because they are not exactly perpendicular to it, the response time to times significantly above msec. lying, enlarged. In this way, each passage of goods through the light barriers can be detected and processed by the computer control program. The light barriers 7 regulate the falling angle of the knitted fabric during the transfer from the calender rollers 4 to the intermediate conveyor belt 6. Depending on whether the lower or upper pair of light barriers responds, the speeds on the spreader drive and on the calender rollers are reduced or increased. With the light barriers 7 ', which are arranged after the shrinking unit, the control impulse for speed changes is triggered on the tafler. Because the light barriers are arranged in sagging areas, not only the flow of goods can be set with this regulation, but also the advance of the goods through the sag control.

Claims (10)

Vorrichtung zum Krumpfen textiler offener und schlauchförmiger Maschenware, mit einem von einer Krumpfwalze (14) und einem diese Walze teilweise umschlingenden Krumpftuch (12) aus Filz oder Gummi gebildeten Krumpfkanal (11) zum Durchführen der Maschenware (S), wobei die von Krumpfwalze und Krumpftuch gebildeten Arbeitsflächen sich mit unterschiedlichen Geschwindigkeiten bewegen, dadurch gekennzeichnet, daß die Krumpfwalze (14) mit einem in Radialrichtung elastischen Belag (15) versehen ist.Device for shrinking textile open and tubular knitted fabrics, with a shrinking channel (11) made of felt or rubber formed by a shrinking roll (14) and a shrinking cloth (12) which partially wraps around this roll, for guiding through the knitted goods (S), the shrinking roll and shrinking cloth Working surfaces formed move at different speeds, characterized in that the shrinking roller (14) is provided with a covering (15) which is elastic in the radial direction. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der wirksame Krumpfkanal (11) auf einen Bereich beschränkt ist, der nicht merklich größer als ein Kreisquadrant ist.Device according to claim 1, characterized in that the effective shrinking channel (11) is limited to an area which is not appreciably larger than a circular quadrant. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Krumpfkanal (11) auf der Einlaufseite durch eine Krumpffahne (8) und auf der Auslaufseite durch eine Druckwalze (19) begrenzt ist.Apparatus according to claim 1 or 2, characterized in that the shrinking channel (11) is delimited on the inlet side by a shrinkage flag (8) and on the outlet side by a pressure roller (19). Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Krumpffahne (8) etwa bis zum unteren Scheitelpunkt der Krumpfwalze (14) in den Krumpfkanal (11) hineinreicht.Device according to one of claims 1 to 3, characterized in that the shrinking flag (8) extends approximately up to the lower apex of the shrinking roller (14) into the shrinking channel (11). Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der elastische Belag (15) der Krumpfwalze (14) von einem äußeren Überzug (15') und einer elastischen Zwischenlage gebildet ist.Device according to one of claims 1 to 4, characterized in that the elastic covering (15) of the shrinking roller (14) is formed by an outer covering (15 ') and an elastic intermediate layer. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Überzug (15') aus einer Filz-, Wolle- od. dgl. Umhüllung besteht.Apparatus according to claim 5, characterized in that the covering (15 ') consists of a felt, wool or the like. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die elastische Zwischenlage aus einem Federring (36) besteht.Apparatus according to claim 5 or 6, characterized in that the elastic intermediate layer consists of a spring ring (36). Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Zwischenlage von einer elastischen Gummi- oder Schaumstoff-Beschichtung oder einer luftgefüllten Unterlage gebildet ist.Apparatus according to claim 5 or 6, characterized in that the intermediate layer is formed by an elastic rubber or foam coating or an air-filled base. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der elastische Belag (15) von einer mehrschichtigen Filz- oder Gummi-Lage gebildet ist, deren zumindest walzenseitige Schicht von weicher, elastischer Konsistenz ist.Device according to one of claims 1 to 4, characterized in that the elastic covering (15) is formed by a multilayer felt or rubber layer, the at least roller-side layer of which is of a soft, elastic consistency. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß zur Steuerung des Warenlaufes durch die Krumpfeinheit (10) den Warenantrieb steuernde Lichtschranken (7,7') vor und nach dem Krumpfkanal (11) in einem Durchhängebereich (5,20) der Maschenware vorgesehen sind.Device according to one of claims 1 to 9, characterized in that for controlling the flow of goods through the shrinking unit (10), light barriers (7, 7 ') controlling the goods drive in front of and after the shrinking channel (11) in a sagging area (5, 20) of the Knitted fabrics are provided.
EP91107791A 1990-05-15 1991-05-14 Apparatus for compressive shrinkage of textile materials Expired - Lifetime EP0457273B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4015611A DE4015611A1 (en) 1990-05-15 1990-05-15 DEVICE FOR SANFORIZING TEXTILE KNITWEAR
DE4015611 1990-05-15

Publications (2)

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EP0457273A1 true EP0457273A1 (en) 1991-11-21
EP0457273B1 EP0457273B1 (en) 1995-08-09

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EP91107791A Expired - Lifetime EP0457273B1 (en) 1990-05-15 1991-05-14 Apparatus for compressive shrinkage of textile materials

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EP (1) EP0457273B1 (en)
AT (1) ATE126286T1 (en)
DE (2) DE4015611A1 (en)
ES (1) ES2078381T3 (en)
GR (1) GR3017104T3 (en)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
GB2261628A (en) * 1991-05-25 1993-05-26 Kannegiesser Martin Apparatus for bonding textile sheet-like structures
EP0950748A1 (en) * 1998-04-17 1999-10-20 LAFER SpA Compaction device for fabrics
EP1085117A1 (en) * 1999-09-01 2001-03-21 Huyck Austria Ges. m.b.H. Textile machine felt
EP1489216A2 (en) * 2003-06-16 2004-12-22 Brückner Trockentechnik GmbH & Co. KG Device for shrinking textile fabrics
CN116590844A (en) * 2023-06-30 2023-08-15 杭州金百合非织造布有限公司 Heating shaft roller with zero deformation force on non-woven fabric

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE19622658C1 (en) * 1996-06-05 2001-05-03 Gerhard Ruckh Gmbh I K Dipl In Assembly for shrinking flat or tubular knitted goods, comprise shrinking channel for fabric with geometric shape which can be adjusted between linear and convex shape

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US4118179A (en) * 1976-12-08 1978-10-03 Honeywell Inc. Material processor with relative movement between material and its positioner
GB2043727A (en) * 1979-03-08 1980-10-08 Hunt & Moscrop Compressive shrinkage of textile and paper webs
EP0364024A1 (en) * 1988-10-14 1990-04-18 SPEROTTO RIMAR S.p.A. Apparatus for causing the shrinking of a cloth

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IT1215521B (en) * 1987-05-26 1990-02-14 Sperotto Rimar Spa CONTINUOUS DECATISSING PROCESS OF A FABRIC AND RELATED EQUIPMENT.

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FR2070866A1 (en) * 1969-12-15 1971-09-17 Cluett Peabody & Co Inc
FR2243288A1 (en) * 1973-09-07 1975-04-04 Clupak Inc
US4118179A (en) * 1976-12-08 1978-10-03 Honeywell Inc. Material processor with relative movement between material and its positioner
GB2043727A (en) * 1979-03-08 1980-10-08 Hunt & Moscrop Compressive shrinkage of textile and paper webs
EP0364024A1 (en) * 1988-10-14 1990-04-18 SPEROTTO RIMAR S.p.A. Apparatus for causing the shrinking of a cloth

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261628A (en) * 1991-05-25 1993-05-26 Kannegiesser Martin Apparatus for bonding textile sheet-like structures
GB2261628B (en) * 1991-05-25 1994-12-14 Kannegiesser Martin Apparatus for bonding textile sheet-like structures
US5501764A (en) * 1991-05-25 1996-03-26 Herbert Kennegiesser Gmbh & Co. Apparatus for bonding textile sheet-like structures
EP0950748A1 (en) * 1998-04-17 1999-10-20 LAFER SpA Compaction device for fabrics
EP1085117A1 (en) * 1999-09-01 2001-03-21 Huyck Austria Ges. m.b.H. Textile machine felt
EP1489216A2 (en) * 2003-06-16 2004-12-22 Brückner Trockentechnik GmbH & Co. KG Device for shrinking textile fabrics
EP1489216A3 (en) * 2003-06-16 2005-09-21 Brückner Trockentechnik GmbH & Co. KG Device for shrinking textile fabrics
CN116590844A (en) * 2023-06-30 2023-08-15 杭州金百合非织造布有限公司 Heating shaft roller with zero deformation force on non-woven fabric

Also Published As

Publication number Publication date
DE59106182D1 (en) 1995-09-14
DE4015611A1 (en) 1992-02-06
ATE126286T1 (en) 1995-08-15
EP0457273B1 (en) 1995-08-09
GR3017104T3 (en) 1995-11-30
ES2078381T3 (en) 1995-12-16

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