EP0243870B1 - Device for controlling the supply of heat at moving webs of material - Google Patents

Device for controlling the supply of heat at moving webs of material Download PDF

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Publication number
EP0243870B1
EP0243870B1 EP87105918A EP87105918A EP0243870B1 EP 0243870 B1 EP0243870 B1 EP 0243870B1 EP 87105918 A EP87105918 A EP 87105918A EP 87105918 A EP87105918 A EP 87105918A EP 0243870 B1 EP0243870 B1 EP 0243870B1
Authority
EP
European Patent Office
Prior art keywords
rollers
cylinders
guide rollers
web
fabric web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87105918A
Other languages
German (de)
French (fr)
Other versions
EP0243870A3 (en
EP0243870A2 (en
Inventor
Harke Claus Dipl.-Ing. Paulsen
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.)
Babcock Textilmaschinen GmbH
Original Assignee
Babcock Textilmaschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Babcock Textilmaschinen GmbH filed Critical Babcock Textilmaschinen GmbH
Priority to AT87105918T priority Critical patent/ATE60947T1/en
Publication of EP0243870A2 publication Critical patent/EP0243870A2/en
Publication of EP0243870A3 publication Critical patent/EP0243870A3/en
Application granted granted Critical
Publication of EP0243870B1 publication Critical patent/EP0243870B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/12—Controlling movement, tension or position of material

Definitions

  • the invention relates to a device for regulating the supply of heat during the heat treatment of running woven or knitted webs or the like.
  • the webs are guided around the lateral surfaces of heated rollers or cylinders via guide rollers.
  • guide rollers are attached to the lateral surfaces, through which the web is guided so that the wrap angle of the web on the rollers or cylinders is as large as possible.
  • the present invention is intended to avoid these disadvantages and, in particular, to solve the problem of being able to quickly adapt the heat supply from the roller or cylinder jackets to the web of material to different requirements.
  • the guide rollers can be adjusted as a function of the measured values of a residual moisture measuring device for the material web arranged at the end of the treatment. It has proven to be advantageous to control the regulation of the wrapping of the material web on the roller or cylinders using microprocessors.
  • the control can take place in such a way that in the case of a plurality of rollers or cylinders, the wrap is only changed in one roller, if that is not yet sufficient for the following or previous roller or cylinder and so on.
  • the regulation can also be carried out in groups of two or more rollers or cylinders or in any other suitable or necessary manner. In no case is a change in the speed of the rollers or cylinders provided or required, which would be far too cumbersome for a quick control.
  • the microprocessor control also gives the option of a preselectable adjustment of the guide rollers and the length compensation devices required for the particular properties of the web to be treated.
  • the web 10 runs, as can be seen from the figure, on a guide roller 12 on the outer surface of a heated cylinder 11, wraps around a substantial part of its circumference and is finally removed from the outer surface of the cylinder via a further guide roller 12. Then the web 10 is fed via a guide roller 12 to a downstream cylinder 11 and so on until all the cylinders provided for the treatment have been rotated. At the end of the treatment, a residual moisture measuring device 14 is then arranged, which gives its measured values to a microprocessor 16, by the controller 15 for the adjustment of the guide rollers 12 to set a smaller or larger wrap angle of the web 10 on the cylinder 11, as in FIG Drawing is indicated to be controlled.
  • the guide rollers 12 are assigned length compensation devices 13 for the web, which can be designed as simple dancer rollers or in any other suitable form known per se.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • General Induction Heating (AREA)

Abstract

The device is for the heat treatment of running webs of woven or knitted material or the like which are led over guide rollers around the circumferential surfaces of heatable rolls or cylinders and is aimed at making it possible to adapt the heat supply from the surfaces of the rolls or cylinders to the web of material quickly to suit different requirements. The invention proposes arranging the guide rollers, which are disposed in front of and behind every heatable roll or cylinder, around the circumferential surfaces of the rolls or cylinders in such a way that they can swivel into different positions and assigning to the swivelling guide rollers length compensating devices for the web of material. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Regelung der Wärmezufuhr bei der Wärmebehandlung von laufenden Gewebe-, Gewirkebahnen oder dergl., bei der die Warenbahnen über Führungswalzen um die Mantelflächen von beheizbaren Walzen oder Zylindern herumgeführt sind.The invention relates to a device for regulating the supply of heat during the heat treatment of running woven or knitted webs or the like. In which the webs are guided around the lateral surfaces of heated rollers or cylinders via guide rollers.

Es ist bekannt, Warenbahnen zur Wärmebehandlung, wie z.B zum Trocknen über die zylindrisch ausgebildeten Mantelflächen von Hohlwalzen oder -zylindern zu führen, in deren Innenraum erhizter Dampf eingeleitet wird (siehe 2.B. US-A-4075 768).It is known to run webs for heat treatment, such as for drying, over the cylindrically shaped outer surfaces of hollow rollers or cylinders, into the interior of which heated steam is introduced (see 2.B. US-A-4075 768).

Damit eine gute Ausnutzung der von den Walzen- oder Zylindermänteln abgegebenen Wärme erreicht wird, sind an den Mantelflächen Führungswalzen angebracht, durch die die Warenbahn so geführt wird, daß der Umschlingungswinkel der Warenbahn an den Walzen oder Zylindern möglichst groß ist.So that a good utilization of the heat given off by the roller or cylinder jackets is achieved, guide rollers are attached to the lateral surfaces, through which the web is guided so that the wrap angle of the web on the rollers or cylinders is as large as possible.

Diese Vorrichtungen arbeiten sehr gut solange konstante Betriebsverhältnisse gegeben sind, wie z.B. immer gleich schwere Ware und/oder Durchlauf der Warenbahn mit konstanter Geschwindigkeit durch die Behandlung. Sie sind jedoch nur schwer an wechselnde Betriebsbedingungen wie unterschiedlich schwere Waren oder Veränderungen der Durchlaufgeschwindigkeit aus welchen Gründen auch immer anpaßbar, da in den Walzen- oder Zylindermänteln erhebliche Wärmemengen gespeichert sind, die nicht so schnell abgebaut werden können und die Drehzahl der Walzen oder Zylinder wegen der Trägheit der relativ schweren Walzen oder Zylinder nicht schnell verändert werden kann. Es besteht dann die Gefahr, daß der Warenbahn zuviel Wärme zugeführt wird, was zu Schädigungen der Warenbahn mit teuren Materialverlusten führen kann.These devices work very well as long as there are constant operating conditions, such as goods of the same weight and / or passage of the material web at a constant speed through the treatment. However, they are difficult to adapt to changing operating conditions such as goods of different weights or changes in throughput speed for whatever reason, since considerable amounts of heat are stored in the roller or cylinder jackets that cannot be broken down as quickly and because of the speed of the rollers or cylinders of indolence the relatively heavy rollers or cylinders cannot be changed quickly. There is then a risk that too much heat is supplied to the web, which can lead to damage to the web with expensive material losses.

Durch die vorliegende Erfindung sollen diese Nachteile vermieden werden und insbesondere die Aufgabe gelöst werden, die Wärmezuführung von den Walzen- oder Zylindermänteln an die Warenbahn schnell unterschiedlichen Erfordernissen anpassen zu können.The present invention is intended to avoid these disadvantages and, in particular, to solve the problem of being able to quickly adapt the heat supply from the roller or cylinder jackets to the web of material to different requirements.

Zur Lösung dieser Aufgabe wird erfindungsgemäß bei einer Vorrichtung der eingangs genannten Art vorgeschlagen, die vor und hinter jeder beheizbaren Walze oder Zylinder angeordneten Führungswalzen um die Mantelflächen der Walzen bzw. Zylinder herum in unterschiedliche Stellungen schwenkbar anzuordnen und den schwenkbaren Führungswalzen Längenausgleicheinrichtungen für die Warenbahn zuzuordnen.To achieve this object, it is proposed according to the invention in a device of the type mentioned at the outset to arrange the guide rollers arranged in front of and behind each heatable roller or cylinder so that they can pivot around the lateral surfaces of the rollers or cylinders in different positions and to assign length compensation devices for the web to the pivotable guide rollers.

Es liegt im Rahmen der Erfindung, bei einer Anordnung von mehreren Walzen bzw. Zylindern, die von der Warenbahn bei der Behandlung nacheinander umlaufen werden, nur an einzelnen Walzen bzw. Zylindern oder auch nur an einer Walze bzw. einem Zylinder in unterschiedliche Stellungen schwenkbare Führungswalzen sowie Längenausgleichseinrichtungen für die Warenbahn vorzusehen.It is within the scope of the invention, in the case of an arrangement of a plurality of rollers or cylinders which are rotated one after the other by the material web during the treatment, only on individual rollers or cylinders or also only on one roller or one cylinder pivotable guide rollers in different positions and to provide length compensation devices for the web.

Weitere Merkmale der Vorrichtung sind aus den Unteransprüchen zu entnehmen.Further features of the device can be found in the subclaims.

Zur Regelung der Umschlingung der Warenbahn auf der oder den Walzen bzw. Zylindern kann die Verstellung der Führungswalzen in Abhängigkeit von den Meßwerten eines am Ende der Behandlung angeordneten Restfeuchte-Meßgerätes für die Warenbahn erfolgen. Es hat sich als vorteilhaft erwiesen ,die Regelung der Umschlingung der Warenbahn auf der oder den Walzen bzw. Zylindern über Microprozessoren zu steuern. Dabei kann die Regelung so erfolgen, daß bei mehreren Walzen bzw. Zylindern erst nur bei einer Walze die Umschlingung verändert wird, falls das noch nicht ausreicht bei der folgenden oder vorhergehenden Walze bzw. Zylinder und so fort. Die Regelung kann auch in Gruppen von zwei oder mehreren Walzen bzw. Zylindern vorgenommen werden oder in sonstwie geeigneter oder erforderlicher Weise. In keinem Fall ist dabei eine Änderung der Drehzahl der Walzen bzw. Zylinder vorgesehen oder erforderlich, welche für eine schnelle Regelung viel zu schwerfällig wäre.To regulate the wrapping of the material web on the roller or cylinders or cylinders, the guide rollers can be adjusted as a function of the measured values of a residual moisture measuring device for the material web arranged at the end of the treatment. It has proven to be advantageous to control the regulation of the wrapping of the material web on the roller or cylinders using microprocessors. The control can take place in such a way that in the case of a plurality of rollers or cylinders, the wrap is only changed in one roller, if that is not yet sufficient for the following or previous roller or cylinder and so on. The regulation can also be carried out in groups of two or more rollers or cylinders or in any other suitable or necessary manner. In no case is a change in the speed of the rollers or cylinders provided or required, which would be far too cumbersome for a quick control.

Die Microprozessorsteuerung gibt auch die Möglichkeit einer vorwählbaren für die besonderen Eigenschaften der jeweils zu behandelnden Warenbahn erforderlichen Einstellung der Führungswalzen sowie der Längenausgleicheinrichtungen.The microprocessor control also gives the option of a preselectable adjustment of the guide rollers and the length compensation devices required for the particular properties of the web to be treated.

Auf der Zeichnung ist ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung schematisch dargestellt.In the drawing, an embodiment of a device according to the invention is shown schematically.

Die Warenbahn 10 läuft wie die Figur erkennen läßt, über eine Führungswalze 12 auf die Mantelfläche eines beheizten Zylinders 11 auf, umschlingt diesen über einen wesentlichen Teil seines Umfanges und wird schließlich über eine weitere Führungswalze 12 von der Mantelfläche des Zylinders abgenommen. Danach erfolgt die Zuführung der Warenbahn 10 über eine Führungswalze 12 auf einen nachgeschalteten Zylinder 11 und so fort bis alle für die Behandlung vorgesehenen Zylinder umlaufen sind. Am Ende der Behandlung ist dann ein Restfeuchte-Meßgerät 14 angeordnet, welches seine Meßwerte an einen Microprozessor 16 gibt, durch den Regler 15 für die Verstellung der Führungswalzen 12 zur Einstellung eines kleineren oder größeren Umschlingungswinkels der Warenbahn 10 auf den Zylinder 11, wie in der Zeichnung angedeutet ist, gesteuert werden.The web 10 runs, as can be seen from the figure, on a guide roller 12 on the outer surface of a heated cylinder 11, wraps around a substantial part of its circumference and is finally removed from the outer surface of the cylinder via a further guide roller 12. Then the web 10 is fed via a guide roller 12 to a downstream cylinder 11 and so on until all the cylinders provided for the treatment have been rotated. At the end of the treatment, a residual moisture measuring device 14 is then arranged, which gives its measured values to a microprocessor 16, by the controller 15 for the adjustment of the guide rollers 12 to set a smaller or larger wrap angle of the web 10 on the cylinder 11, as in FIG Drawing is indicated to be controlled.

Zum Längenausgleich der Warenbahn 10 durch die unterschiedliche Umschlingung der Warenbahn auf den Zylindern 11 sind den Führungswalzen 12 Längenausgleicheinrichtungen 13 für die Warenbahn zugeordnet, die als einfache Tänzerwalzen oder in sonstwie geeigneter an sich bekannter Form ausgeführt sein können.For length compensation of the web 10 by the different wrapping of the web on the cylinders 11, the guide rollers 12 are assigned length compensation devices 13 for the web, which can be designed as simple dancer rollers or in any other suitable form known per se.

Claims (9)

  1. Device to control the supply of heat in the heat treatment of running webs of woven or knitted fabrics and the like where the fabric webs are guided, via guide rollers, around the surface of heatable rollers or cylinders, whereby the guide rollers (12) are arranged to be slewable to different positions around the surfaces of the rollers or cylinders and length compensating mechanisms (13) for the fabric web (10) are coordinated with the slewable guide rollers.
  2. Device according to claim 1, whereby with a consecutive arrangement of several rollers or cylinders (11) in running direction of the fabric web (10) through the treatment, guide rollers (12), slewable to different positions, and length compensating mechanisms (13) for the fabric web are provided only at individual rollers or cylinders or only at one roller or one cylinder.
  3. Device according to claim 2, whereby only the final roller or cylinder (11) of the heat treatment is provided with slewable guide rollers (12) as well as a length compensating mechanism (13).
  4. Device according to claims 1 to 3, whereby adjustment of the guide rollers (12) is by means of hydraulic or pneumatic operating devices.
  5. Device according to claims 1 to 4, whereby several heated rollers or cylinders (11) are arranged horizontally in parallel.
  6. Device according to claims 1 to 4, whereby several heated rollers or cylinders (11) are arranged one above the other.
  7. Device according to claims 1 to 6, whereby for the control of the fabric web (10) looping around one or more rollers or cylinders (11), adjustment of the guide rollers (12) is effected depending on values measured by a residual moisture measuring instrument (14) of the fabric web.
  8. Device according to claims 1 to 7, whereby control by microprocessors (16) of the fabric web (10) looping around one or more rollers or cylinders (11) is such that control is effected for one roller or cylinder or for groups of two or more rollers or cylinders.
  9. Device according to claims 1 to 8, whereby length compensating mechanisms (13) are designed as dance rollers.
EP87105918A 1986-04-30 1987-04-22 Device for controlling the supply of heat at moving webs of material Expired - Lifetime EP0243870B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105918T ATE60947T1 (en) 1986-04-30 1987-04-22 DEVICE FOR ADJUSTING THE HEAT SUPPLY IN RUNNING WEBS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3614713 1986-04-30
DE19863614713 DE3614713A1 (en) 1986-04-30 1986-04-30 DEVICE FOR CONTROLLING THE HEAT SUPPLY OF RUNNING TRACKS

Publications (3)

Publication Number Publication Date
EP0243870A2 EP0243870A2 (en) 1987-11-04
EP0243870A3 EP0243870A3 (en) 1988-06-08
EP0243870B1 true EP0243870B1 (en) 1991-02-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105918A Expired - Lifetime EP0243870B1 (en) 1986-04-30 1987-04-22 Device for controlling the supply of heat at moving webs of material

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EP (1) EP0243870B1 (en)
AT (1) ATE60947T1 (en)
DE (2) DE3614713A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108056A1 (en) * 1991-03-13 1992-09-17 Feldmuehle Ag Stora METHOD FOR REMEDYING PLANNING OBSTACLES IN THE MANUFACTURE OF TRACKS IN PAPER OR CARTON MACHINES AND DEVICE FOR THEIR IMPLEMENTATION

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT212259B (en) * 1957-04-16 1960-12-12 Bertil Fredrik Helgeso Mellbin Device for driving a group of offset drying rollers
US4075768A (en) * 1972-06-05 1978-02-28 Valmet Oy Multicylinder dryer
DE3049457A1 (en) * 1980-12-30 1982-07-29 Willy Dipl.-Ing. 4040 Neuss Heckers Strip material tensionless drying track - has two suction cylinders in succession between successive pairs of drying drums

Also Published As

Publication number Publication date
EP0243870A3 (en) 1988-06-08
DE3768044D1 (en) 1991-03-28
ATE60947T1 (en) 1991-03-15
DE3614713A1 (en) 1987-11-05
EP0243870A2 (en) 1987-11-04

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