EP0316268B1 - Vorrichtung zum Behandeln einer Textilbahn mit einer Mehrzahl von Walzen - Google Patents

Vorrichtung zum Behandeln einer Textilbahn mit einer Mehrzahl von Walzen Download PDF

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Publication number
EP0316268B1
EP0316268B1 EP19880810683 EP88810683A EP0316268B1 EP 0316268 B1 EP0316268 B1 EP 0316268B1 EP 19880810683 EP19880810683 EP 19880810683 EP 88810683 A EP88810683 A EP 88810683A EP 0316268 B1 EP0316268 B1 EP 0316268B1
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EP
European Patent Office
Prior art keywords
valve
pressure
pressure medium
manual
control
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
EP19880810683
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German (de)
English (en)
French (fr)
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EP0316268A1 (de
Inventor
Edi Virtic
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.)
Benninger AG
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Benninger AG
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Publication date
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Publication of EP0316268A1 publication Critical patent/EP0316268A1/de
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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
    • D06B7/00—Mercerising, e.g. lustring by mercerising
    • D06B7/08—Mercerising, e.g. lustring by mercerising of fabrics of indefinite length

Definitions

  • the invention relates to a device for treating a textile web according to the preamble of claim 1.
  • This can be, for example, a mercerizing machine in which a textile web in a bound web guide passes through several treatment stages and is immersed in liquid reaction or detergent. The liquid is squeezed out again via squeeze rollers and dancer rollers ensure uniform tension control of the textile web.
  • the machine operator uses manual valves to set the desired operating pressure on the pressure medium drive or to switch it on and off.
  • a disadvantage of known devices is that each individual pressure medium drive has to be set or operated manually, which makes commissioning and monitoring of the system considerably more difficult. Central operation of all pressure medium drives in manual mode could only be achieved by the complex laying of relatively long pressure medium lines. It is therefore an object of the invention to provide a device of the type mentioned in the introduction, in which all pressure medium drives can be carried out both on site manually and via a remote control from a central point, without the function and operational reliability being impaired.
  • this object is achieved with a device which has the features of claim 1.
  • the remote-controlled directional valve enables remote control of the pressure medium drives regardless of the position of the manual valve, since the latter is bridged by the bypass line. For example, all squeeze rollers can be delivered or lowered from a control center without having to operate each individual manual valve.
  • the setting of the desired operating pressure on the individual pressure medium drives can be made considerably easier if a remote-controllable pressure control valve is connected to the bypass line. In this way, the desired squeeze pressure on the squeeze mechanism or the tension on the dancer roller can also be set from a control center. Remote control is made considerably easier if the pressure medium drive can be activated pneumatically and if the pressure control valve can be controlled with an electrical signal.
  • the electrical signal lines can be accommodated in a space-saving manner without great effort and the pressure control can be carried out in the simplest way via a variable control voltage which is proportional to a specific output pressure at the pressure regulating valve.
  • a mercerizing machine 1 is shown in FIG. 1 as a representative of all fabric width treatment plants. It consists of squeezing 2 with its drive motors 3, which drive the squeezing 2, the absorbed liquid being squeezed out in the fabric web 4 or the fabric web being transported on.
  • the fabric web 4 is guided over lower and upper rollers 5a and 5b, and it is also acted upon by dancer rollers 6 in such a way that it passes the system with the desired fabric tension.
  • control stations 7 are generally arranged in the area of the squeeze, at which the squeeze pressure, the squeeze infeed and the fabric tension can be set manually by the machine operator 8.
  • a control panel is indicated at 23, on which the machine operator 8 can enter the various control commands centrally.
  • FIG. 2 A machine control according to the known prior art is shown in FIG. 2 for better understanding.
  • a machine control according to the known prior art is shown here, for better understanding.
  • a textile finishing machine such as, for example, a mercerizing machine.
  • the squeezers 2 consist of an upper squeeze roller 9b and a lower squeeze roller 9a.
  • the upper squeeze roller 9b is driven by a drive motor 3, while the lower squeeze roller 9a can be pressed against the upper squeeze roller via a pneumatic bellows 10.
  • the pneumatic bellows 10 is connected to the main pneumatic line 11 via a limiting valve 12, a reducing valve 13 and a closing valve 14. The pneumatic bellows 10 then actuates the lower squeeze roller 9a via a lever system (not shown).
  • the limiting valve 12 serves to limit the maximum permissible pressure, so that the rubberized surface of the two squeeze rollers 9a and 9b is protected against excessive stress.
  • the desired pinch pressure can be set manually on the reducing valve 13. This can be read on the manometer 15, which is calibrated in kN, for example.
  • the closing valve 14 which is also manually operated, the pneumatic bellows 10 is pressurized with compressed air or is decoupled from the compressed air and vented. When the pneumatic bellows 10 is vented, the lower squeeze roller 9a is lowered.
  • the valves 12, 13 and 14 described and the manometer 15 are located at the operating stations 7 according to FIG. 1 and are operated there by the machine operator 8.
  • the dancer rollers 6 assigned to the squeezers 2 generate the fabric tension via a pneumatic cylinder 18, which is also connected to the main pneumatic line 11 via a reducing valve 16.
  • the fabric web 4 is tensioned in accordance with the set pressure, which can be read on the manometer 17.
  • the pressure gauge 17 is preferably also calibrated in N.
  • the potentiometer 19, which is operatively connected to the drive motor 3 via a connecting line 20, is used to maintain the fabric tension.
  • a pressure switch 21 is also arranged in the main pneumatic line 11, which for safety reasons only releases the electrical system 22 when the pneumatic system is under pressure.
  • FIG. 3 now shows an arrangement according to the invention, in which the lower squeeze rollers 9a can be advanced or lowered via a remote control.
  • a directional control valve 24 is inserted in front of each pneumatic bellows 10, which can be activated via an electrical connecting line 25 by actuating the changeover switch 26 on the control panel 23 (FIG. 1).
  • the directional control valve 24 is connected on the one hand to the closing valve 14 and on the other hand to a bypass line 47 with which the closing valve 14 can be bridged. If the changeover switch 26 is actuated, the directional control valve 24 is set such that the pneumatic bellows 10 is pressurized via the bypass line 47.
  • the closing valve 14 is bridged regardless of its actual position, so that all squeezes can be delivered or lifted from the control panel 23. However, the desired operating pressure is still set manually via the reducing valve 13, since this is not bypassed by the bypass line 47.
  • an electrovalve 27 is installed in the main pneumatic line 11 and is connected to the electrical system 22. Regardless of which operating position the directional control valve 24 is in, if the electrical system 22 fails, the solenoid valve 27 is switched over and the main pneumatic line 11 is interrupted, so that the lower the nip rollers 9a and damage to the roller coating in the event of malfunctions is avoided.
  • the main pneumatic line 11 is connected again via the solenoid valve 27 and the squeeze rollers 9a are fed.
  • the delivery takes place with a time delay only when the feed pressure has built up in the entire system.
  • FIG. 4 shows a further stage of expansion of the control according to the invention.
  • an electropneumatic pressure control valve 29 is installed in the bypass line 47 of the squeezers 2, which is operatively connected to the potentiometer 30 on the control panel 23 via an electrical connecting line 31.
  • the pressure control valve 29 sets an electrical signal, e.g. convert an electrical voltage from zero to ten volts into an analog pneumatic pressure.
  • the mode of operation of such a pressure control valve is described in more detail, for example, in the journal "Oil Hydraulics and Pneumatics" 31 (1987) No. 5, pp. 454 to 456.
  • the desired control voltage or the desired operating pressure can be set by means of the potentiometer 30, the squeezing pressure analogous to the respective operating pressure being shown on the squeezer 2 on the display device 32 with kN calibration.
  • bypass line 47 in this arrangement not only has to bridge the closing valve 14, but also the reducing valve 13, so that there is no pressure limitation via the latter. From a central point, every single squeeze can be set to the correct operating pressure in the simplest way. The possibility of remote control is maintained until the switch 26 is switched to machine operation. When the switch 26 is actuated, the potentiometer 30 on the one hand and the electropneumatic pressure control valve 29 on the other hand are put out of operation. Likewise, the switch valve 24, which interrupts the bypass line 47, so that the reducing valve 13 and the closing valve 14 become effective again. The set squeezing pressure can always be read on the manometer 15.
  • the dancer rollers 6 can also be remotely controlled, in which the conventional reducing valve 16 can also be bridged with the aid of a directional valve 33 and a bypass line 47.
  • An electropneumatic pressure control valve 34 is installed in the bypass line.
  • the directional control valve 33 is connected to the electrical connecting line 36 via the electrical connecting line 35.
  • the pressure control valves 34 are operatively connected to a potentiometer 37 on the control panel, which is fed via the electrical connecting line 36.
  • the fabric tension can now also be set via the potentiometer 37, the tension exerted being read directly on an electrical display device 38 calibrated in N.
  • the changeover switch 39 in the electrical connecting line 36 optionally allows remote control via the pressure control valves 34 or manual operation via the reducing valves 16.
  • FIG. 5 shows in principle the same switching arrangement as FIG. 4, but the individual operating data can be entered and read at an input station 40 during remote control operation.
  • the input station 40 with a symbolically represented input 46 and an output 45 now makes it possible to prepare the mercerizing machine for a specific fabric web and to carry out the commissioning, the machine operator 8 now only having to perform a monitoring function.
  • the machine operator 8 now only having to perform a monitoring function.
  • he has the option of switching off the input station 40 in the event of malfunctions via the switch 44 and switching the system or parts of the system to manual operation depending on the position of the switch 44.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Paper (AREA)
EP19880810683 1987-10-12 1988-10-04 Vorrichtung zum Behandeln einer Textilbahn mit einer Mehrzahl von Walzen Expired - Lifetime EP0316268B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3990/87 1987-10-12
CH399087A CH673854A5 (enrdf_load_stackoverflow) 1987-10-12 1987-10-12

Publications (2)

Publication Number Publication Date
EP0316268A1 EP0316268A1 (de) 1989-05-17
EP0316268B1 true EP0316268B1 (de) 1992-01-02

Family

ID=4267745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880810683 Expired - Lifetime EP0316268B1 (de) 1987-10-12 1988-10-04 Vorrichtung zum Behandeln einer Textilbahn mit einer Mehrzahl von Walzen

Country Status (4)

Country Link
EP (1) EP0316268B1 (enrdf_load_stackoverflow)
CH (1) CH673854A5 (enrdf_load_stackoverflow)
DE (1) DE3867434D1 (enrdf_load_stackoverflow)
ES (1) ES2028360T3 (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100451A1 (de) * 1980-04-10 1982-01-07 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Fernverstellsystem zur steuerung der druckbilderzeugung an druckmaschinen
DD158712A3 (de) * 1981-06-15 1983-02-02 Alfons Degwerth Verfahren und vorrichtung zum mercerisieren von textilen stoffbahnen
FI74064C (fi) * 1984-05-18 1987-12-10 Waertsilae Oy Ab Regleranordning foer valspress.

Also Published As

Publication number Publication date
ES2028360T3 (es) 1992-07-01
EP0316268A1 (de) 1989-05-17
CH673854A5 (enrdf_load_stackoverflow) 1990-04-12
DE3867434D1 (de) 1992-02-13

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