EP1760179A2 - Dichtungsvorrichtung - Google Patents

Dichtungsvorrichtung Download PDF

Info

Publication number
EP1760179A2
EP1760179A2 EP06360033A EP06360033A EP1760179A2 EP 1760179 A2 EP1760179 A2 EP 1760179A2 EP 06360033 A EP06360033 A EP 06360033A EP 06360033 A EP06360033 A EP 06360033A EP 1760179 A2 EP1760179 A2 EP 1760179A2
Authority
EP
European Patent Office
Prior art keywords
actuators
sealing
rollers
horizontal
frame
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
EP06360033A
Other languages
English (en)
French (fr)
Other versions
EP1760179A3 (de
EP1760179B1 (de
Inventor
Michel Mazoyer
Antoine Chochol
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.)
Superba SAS
Original Assignee
Superba SAS
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 Superba SAS filed Critical Superba SAS
Publication of EP1760179A2 publication Critical patent/EP1760179A2/de
Publication of EP1760179A3 publication Critical patent/EP1760179A3/de
Application granted granted Critical
Publication of EP1760179B1 publication Critical patent/EP1760179B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D06B23/14—Containers, e.g. vats
    • D06B23/18—Sealing arrangements

Definitions

  • the present relates to the field of the textile industry, in particular the treatment of son by means of heat treatment machines commonly called heat-setting machines, and relates to a sealing head for such machines.
  • These heat treatment machines essentially consist of a pressurized heat treatment chamber for textile threads deposited on a conveyor belt passing through said chamber, which is closed at its two ends by sealing heads each comprising a frame attached to the pressurized enclosure. a pair of superposed horizontal rollers which are pressed against the opposite faces of the conveyor belt and sealing means to form a seal between the rollers and the frame.
  • the horizontal rollers are actuated by clamping means allowing at least one of the rollers to move towards one another and the sealing means are in the form, on the one hand, of an upper element and an elongate lower member and supported against generatrices of the two rollers and, secondly, lateral sealing plates slidably pressed against the corresponding ends of the rollers.
  • the application of the sealing means is effected by means of actuators, in the form of hydraulic cylinders with high pressure, rods or drilled-block cylinders for horizontal elements and hydraulic cylinders at high pressure with angle lever, for side sealing plates.
  • the bored block cylinders are, in fact, cylinders having a plurality of pistons and piston rods which are aligned parallel in a single block of cylinders and has a single hydraulic supply, their operation being, moreover, identical to that of the usual hydraulic cylinders .
  • the entire sealing head has a totally rigid pressurizing system allowing no fluctuation or pressure variation on any of the actuators.
  • the present invention aims to overcome these disadvantages by providing a sealing head for son heat treatment machines for easy access to the wear elements and to avoid the disadvantages of hydraulic actuators at high pressure.
  • the sealing head for wire heat treatment machines which essentially consists of a frame attached to a pressurized chamber traversed by a conveyor belt, by a pair of superposed horizontal rollers which are pressed against the opposite faces of the conveyor belt and by sealing means to form a sealing between the rollers and the frame, at least one of the horizontal rollers and the sealing means being connected to corresponding displacement actuators, is characterized in that the actuators of the horizontal roller (s) and the sealing means between the rollers and the frame are constituted in the form of low-pressure actuators without piston, namely of the balloon or bellows type.
  • FIGS. 1 to 4 of the appended drawings represent, by way of example, a sealing head for wire heat treatment machines, which essentially consists of a frame 1 fixed to a pressurized enclosure (not shown) traversed by a band conveyor 100, by a pair of superposed horizontal rollers 2 and 3 which are pressed against the opposite faces of the conveyor belt 100 and by sealing means 4 and 5 to form a sealing between the rollers 2 and 3 and the frame 1 at least one, 2, horizontal rollers and the sealing means 4 and 5 being connected to corresponding displacement actuators 6 to 8.
  • a sealing head for wire heat treatment machines which essentially consists of a frame 1 fixed to a pressurized enclosure (not shown) traversed by a band conveyor 100, by a pair of superposed horizontal rollers 2 and 3 which are pressed against the opposite faces of the conveyor belt 100 and by sealing means 4 and 5 to form a sealing between the rollers 2 and 3 and the frame 1 at least one, 2, horizontal rollers and the sealing means 4 and 5 being connected to corresponding displacement actuators 6 to 8.
  • the actuators 6 to 8 of the horizontal roller or rollers 2 and / or 3 and sealing means 4 and 5 between the rollers 2 and 3 and the frame 1 are constituted in the form of low-pressure actuators without piston, namely of the balloon or bellows type.
  • these actuators 6 to 8 are actuators operating at a maximum operating pressure of the order of 8 bars.
  • FIG. 1 is schematic and the arrangement of the actuators 8 for the sealing means 5 is only symbolic, in order to perfectly highlight the action of said actuators 8, the positioning of such an actuator being shown in Figure 5.
  • the actuators 6, which are intended to apply at least one of the two horizontal rollers on the conveyor belt 100 against the other horizontal roller 3, are advantageously double-acting diaphragm cylinders and are arranged on the frame 1, from and other said rollers horizontal and 2 and 3 and act on the drive shaft or guide of said horizontal rollers 2 and 3, at their ends, by means of sliding bearings 9 guided in the corresponding ends of the frame 1 and cooperating with push rods 10, connected at one end to said sliding bearing 9 and connected at their other end to the corresponding membrane of the actuator 6 ( Figure 4).
  • each actuator 6 in the form of two actuators of the balloon or single-acting bellows type, these two actuators each acting on either side, or of the support bearing of the shaft of the corresponding roller, or on a moving means connected to said bearing.
  • the actuators 8 are advantageously bellows or balloon actuators and act on the sealing means 5 between the horizontal rollers 2 and 3 and the frame 1, which are constituted in the form of sealing plates, by means of a force transfer device in the form of a bent lever 16 pivotally mounted by an axis 16 'on the frame 1 and pivotally actuated by means of a transmission rod 17 having a return spring 17 '.
  • each actuator 8 has the effect of moving the transmission rod 17 in the direction of a tilting actuation of the bent lever 16 about its axis 16 ', resulting in a corresponding transmission the force in the direction of the corresponding plate forming the sealing means 5 and the application under a predetermined pressure of said plate against the ends of the rollers 2 and 3.
  • a bent lever 16 it is possible to performing an overdrive of the application force of the sealing means 5 by matching a transmission torque ratio corresponding to the ratio of the lever arms of the bent lever.
  • the actuators 6 to 8 are advantageously pneumatic actuators.
  • the use of such pneumatic actuators makes it possible, due to the compressibility of the air or a gas, to obtain damping of the vibrations and / or deformations. It is, however, also possible to make these actuators in the form of hydraulic actuators, oil or aqueous fluids, such as water or glycol, in particular.
  • these actuators because of their constitution without sliding element outside their pressure chamber, are perfectly sealed, so that the risk of leakage of fluids are eliminated. Moreover, their operation at low pressure prevents any risk of overheating, which could be harmful for their operation.
  • actuators 6 to 8 are advantageously commercial bellows flexible cylinders known by the name pneuride, of dimension 6 "x 1", and available in particular under the references PM31061 from NORGREN, 9109004 from PARKER or SP1536 from WEFORMA, and flexible bellows guns on the market known under the name pneuride, of size 4 "1/2 x 1", available in particular under the references PM31041 from NORGREN, 9109400 from PARKER or SP2334 from WEFORMA, and double-acting diaphragm cylinders, available in particular under the trade references KHGS from CEF and COD600-50 from REXROTH PARKER- BOSCH.
  • the balloons constituting the actuators 6 to 8 can be made, depending on the conditions of use, of natural or synthetic rubber of the butyl, epichloro or nitrile type, these materials being optionally combined with a textile reinforcement.
  • the damping effect will be limited to the deformability of the balloon, which is generally defined for a maximum operating pressure of 8 bar and an operating temperature of between -40 ° C. and + 130 ° C. depending on the material of the balloon. It is also possible to add to this material anti-UV agents for improving the resistance to ozone or to provide special protection on the surface of the bellows.
  • the actuators 6 to 8 simultaneously act as actuators and air springs and allow, while being compact construction, obtaining a high power in a small footprint, and a high reliability and flexibility important operation.
  • these actuators are maintenance-free, resistant to aggressive environments and their service life is very important.
  • the bellows is protected from harmful side vibrations, even in case of asymmetrical wear of a blade or a sealing plate.
  • the membranes being, moreover, in a known manner, protected against the projections of chemical agents by a stainless steel shield ensuring a perfect control of the stroke of the bellows, this protection is also effective against tears, scratches, nicks, the projections of particles and against shocks, as well as against the accidental overpressure of the fluid, the shielding preventing loosening.
  • the various actuators 6 to 8 are each provided with a drain valve 6 'to 8' and are advantageously controlled automatically, either by means of a programmable controller 200, or by via a pneumatic automaton implementing elements of pneumatic logic, standard logic or electropneumatic logic acting on control valves 6 "to 8" arranged in the supply circuit of these actuators 6 to 8 (FIG. 1).
  • the implementation of a heat treatment machine with sealing heads provided with the actuators 6 and 8 is carried out according to a control method which consists, from an open treatment enclosure position, to temporarily closing the horizontal sealing rollers 2 and 3 around the conveyor belt 100, and then aligning the horizontal sealing rollers 2 and 3 by means of the sealing means 5, to definitively put in pressure the horizontal sealing rollers 2 and 3 against the conveyor belt 100, to then apply under pressure the sealing strips 12 of the sealing means 4 on the horizontal sealing rollers 2 and 3, to then apply under pressure the sealing means; 5 against the ends of the horizontal sealing rollers 2 and 3, then put the treatment chamber under pressure, subject to authorization to put en route delivered by contacts or sensors noting the closing of the various drain valves 6 'to 8' and the opening of the regulation valves 6 "to 8" assigned to the actuators 6 to 8, a pressure drop in the enclosure or an opening command of a sealing head causing a control shutdown of the regulation valves 6 "to 8" simultaneously with an opening of the emptying valve of the enclosure and the delivery of a restart prohibition signal
  • the alignment of the horizontal sealing rollers 2 and 3 by means of the sealing means 5, after temporary closing of the horizontal sealing rollers 2 and 3 around the conveyor belt 100, is preferably carried out by a series of bets. under pressure and depressurization, actuators 8 acting on the sealing means 5.
  • actuators 8 acting on the sealing means 5.
  • the prediction of a detection of a pressure drop in the treatment machine makes it possible, thanks to the method described above, to prevent any unintentional opening of a sealing head following the emergency stop thus caused and ensures a process of access inside the enclosure of the machine perfectly controlled.
  • sealing heads for wire heat treatment machines employing actuators that can be used simultaneously for the displacement of different moving elements and for the damping of the vibrations caused during operation, these actuators can be powered by different fluids, under a low pressure.
  • the actuators according to the invention are not subject to any internal sealing problem and are of low cost.
  • actuators are extremely robust, withstand aggressive and high temperature environments, are maintenance-free and can operate with angular and axial misalignments.
  • the actuators 6 to 8 because of their constitution do not require specific guidance, can be easily and quickly mounted and dismounted, reassembly taking place without complex adjustment or special tools.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Package Closures (AREA)
  • Actuator (AREA)
  • Diaphragms And Bellows (AREA)
  • Glass Compositions (AREA)
  • Seal Device For Vehicle (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
EP06360033A 2005-09-01 2006-08-02 Dichtungsvorrichtung Active EP1760179B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0508987A FR2890084B1 (fr) 2005-09-01 2005-09-01 Tete d'etancheite

Publications (3)

Publication Number Publication Date
EP1760179A2 true EP1760179A2 (de) 2007-03-07
EP1760179A3 EP1760179A3 (de) 2008-05-21
EP1760179B1 EP1760179B1 (de) 2011-09-07

Family

ID=36481431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06360033A Active EP1760179B1 (de) 2005-09-01 2006-08-02 Dichtungsvorrichtung

Country Status (4)

Country Link
EP (1) EP1760179B1 (de)
CN (1) CN1924152B (de)
AT (1) ATE523621T1 (de)
FR (1) FR2890084B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108611794B (zh) * 2018-07-02 2020-06-30 吉安新华南户外用品有限公司 一种纺织布料拉绒加工设备及布料拉绒加工工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074130A (en) * 1989-10-11 1991-12-24 Passap Knitting Machines Inc. Sealing unit for an inlet or outlet of a textile thread treatment apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074130A (en) * 1989-10-11 1991-12-24 Passap Knitting Machines Inc. Sealing unit for an inlet or outlet of a textile thread treatment apparatus

Also Published As

Publication number Publication date
CN1924152B (zh) 2011-11-16
ATE523621T1 (de) 2011-09-15
EP1760179A3 (de) 2008-05-21
FR2890084B1 (fr) 2007-10-12
EP1760179B1 (de) 2011-09-07
CN1924152A (zh) 2007-03-07
FR2890084A1 (fr) 2007-03-02

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