EP1590514A1 - Element de fermeture pour tubes polygonaux a air comprime sur un metier a filer - Google Patents

Element de fermeture pour tubes polygonaux a air comprime sur un metier a filer

Info

Publication number
EP1590514A1
EP1590514A1 EP03767658A EP03767658A EP1590514A1 EP 1590514 A1 EP1590514 A1 EP 1590514A1 EP 03767658 A EP03767658 A EP 03767658A EP 03767658 A EP03767658 A EP 03767658A EP 1590514 A1 EP1590514 A1 EP 1590514A1
Authority
EP
European Patent Office
Prior art keywords
compressed air
sealing
sealing element
polygonal tube
element according
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
EP03767658A
Other languages
German (de)
English (en)
Other versions
EP1590514B1 (fr
Inventor
Wilhelm Birkenmaier
Jürgen Schlegel
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
TEXparts 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 TEXparts GmbH filed Critical TEXparts GmbH
Publication of EP1590514A1 publication Critical patent/EP1590514A1/fr
Application granted granted Critical
Publication of EP1590514B1 publication Critical patent/EP1590514B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/52—Loading arrangements using fluid pressure

Definitions

  • the invention relates to a closure element for compressed air-carrying polygonal tubes according to the preamble of claim 1. _
  • Pneumatically loadable upper roller support and load arms are used on drafting systems for spinning machines, which are attached to a support rod of the machine by means of supports.
  • the support rod is hollow and also serves as a compressed air line.
  • Such a drafting system is described for example in DE 198 29 403 AI.
  • a support rod formed from polygonal tube pieces is known, the tube pieces being provided at each end with end elements.
  • a support rod which is composed of individual pieces of pipe, a modular structure of the support rod and the compressed air supply for spinning machines of different lengths is possible.
  • the end elements are sealingly inserted into the ends of the polygonal tube pieces.
  • the compressed air is routed between the polygonal pipe sections by connecting pipe sections between the end elements.
  • a secure, permanent seal is not guaranteed. If leaks occur during operation, such sealing elements are difficult to disassemble and cannot be reused. Often, the entire section of tube has to be replaced.
  • the sealant is also only able to a very limited extent to hold the sealing piece against the internal pressure in the profile tube in the required position in addition to the sealing function. Additional, special measures, for example the installation of locking pins, are required to secure the sealing piece against axial displacement.
  • the polygonal tubes are received at their ends in recesses by supports also referred to as punches and by means of Screw connections fixed.
  • the profile tube is penetrated by a fastening screw in the end region in which the respective end element is also inserted. Tightening the fastening screw can lead to elastic or plastic deformation of the polygonal hollow profile, which also jeopardizes the sealing effect of the end element.
  • the l invention is based on the object to improve the known closure elements.
  • closure element is the subject of the dependent claims.
  • the closure element according to the invention seals the polygonal tube reliably and with long-term stability.
  • An additional safeguard, for example by means of positive locking pins, against shifting due to the air pressure built up inside the polygonal tube is not necessary, since the sealing element is firmly and positively fixed in position when the sealing function is activated. Assembly and disassembly of the end elements compared to end elements according to the known prior art are facilitated.
  • the end elements and the polygonal tubes are reusable without having to operate, such as cleaning.
  • a closing element according to claim 2 enables the sealing element to be subjected to uniform axial pressure and to achieve a reliable sealing effect.
  • the closure element according to claim 3 allows sealing and fixing to be effected simultaneously with a closure element already inserted in the polygonal tube. The loosening of the fixation and the disassembly of the end element from the polygonal tube can be carried out easily and in a simple manner.
  • a closure element according to claim 4 offers sufficient space for the compressed air channel, which ensures the necessary flow of compressed air, and also allows a central engagement of the screw on the counterpart, which counteracts tilting of the counterpart when tightening the screw.
  • the formation of the end piece and counterpart in the area of the compressed air duct prevents the parts of the closing element from being joined in the wrong position.
  • a closure element according to claim 6 or 7 ensures a sufficient and safe sealing effect.
  • a closure element according to claim 8 is universally suitable for different designs of supports or punches.
  • a support profile on both sides at the recess of the end element counteracts a deformation of the hollow profile, even when the tightening torque of the fastening screws is excessive.
  • the closure element is designed so that it seals the interior of the polygonal tube against the recess.
  • the fastening points of the polygonal tube piece are arranged in a region of the closure element which does not carry compressed air.
  • the shape and position of the recess ensures sufficient stiffening of the end of the polygonal tube.
  • the closure element according to the invention seals the interior of the polygonal tube reliably and with long-term stability. Simultaneously with the sealing effect, the closing element can be fixed in its position against the air pressure prevailing inside the polygonal tube without additional aids. Any necessary repair of a polygonal tube forming the support rod is also possible in a simple manner with little disassembly and assembly effort if the polygonal tube is installed as part of a support rod between other polygonal tubes.
  • FIG. 2 shows the parts of the closure element of FIG. 1, partly in section
  • Fig. 3 shows a section through the end region of two
  • Polygonal tubes each with a closure element and a connecting tube piece with the section A-A from FIG. 1.
  • the end element 1 comprises an end piece 2, a sealing element 3, a counterpart 4, a screw 5 and a sealing washer 6.
  • the end piece 2 has a guide section 7, the outer profile of which is adapted to the inner profile of the polygonal tube 8 shown in dashed lines in FIG.
  • the polygonal tube 8 is designed as a square profile.
  • the guide section 7 is followed by a sealing section 9 with an outer profile of the same shape, the width and height of the outer profile of the sealing section 9 being less than the width and height of the guide section 7.
  • a Stop 10 is formed, which cooperates with the end face 11 of the polygonal tube 8 and prevents the closing element 1 from being drawn or pressed into the polygonal tube 8 beyond the desired position.
  • the guide section 7 has a recess 12. Through this recess 12 and the bores 13, a fastening screw (not shown for reasons of simplification) extends, with which the polygonal tube 8 is fastened to the support or punch.
  • a support profile 14, 15 is formed on both sides of the recess 12 counteracts a deformation of the hollow polygonal tube 8.
  • the recess 12 in the end piece 2 for the fastening screw is dimensioned large enough to be universally suitable and usable for various screw sizes and positions depending on the design of the punches.
  • the stop 10 has in the middle the mouth of the feed channel 16 for the screw 5 and off-center the mouth of the connecting channel 17 for the compressed air guide.
  • the profile shape of the sealing element 3 corresponds to the polygonal tube 8 and the sealing section 9, the inner profile of the sealing element 3 being adapted to the outer profile of the sealing portion 9 and the outer profile of the sealing element 3 being adapted to the inner profile of the polygonal tube 8.
  • the sealing element 3 is made of rubber.
  • the wall thickness T of the sealing element 3 is slightly smaller than the distance that exists between the inside of the polygonal tube 8 and the outside of the guide section 7 when the closure element 1 is inserted into the polygonal tube 8.
  • the length L of the sealing element 3 is a multiple of the wall thickness T and is designed so that the counterpart 4 can sufficiently apply axial pressure to the sealing element 3.
  • the counterpart 4 comprises a hollow profile 18 with the same profile shape as the sealing element 3 and is closed at one end by the rear wall 19 shown in FIG. 2.
  • Rear wall 19 has an inwardly directed support element 20 and a channel element 21.
  • the hollow profile 18 projects with its edge 22 relative to the support element 20.
  • the channel element 21 still protrudes beyond the edge 22.
  • the counterpart 4 can only fit together with the end piece 2 if the slightly protruding channel element 21 assumes the correct position.
  • the correct position of the channel element 21 is in the exemplary embodiment shown in FIG. 1 at the top left in the counterpart 4. This ensures that the compressed air flows through.
  • a bore 23 extends through the rear wall 19 and the support element 20, into which a thread is formed. Both the end piece 2 and the counterpart 4 are made of die-cast zinc.
  • the sectional view in FIG. 2 shows further details of the design of the closure element 1.
  • the feed channel 16 merges into a smaller diameter in the interior of the end piece 2, the transition to the smaller diameter of the feed channel 16 being designed as a support 24.
  • the connecting duct 17 merges into a compressed air duct 25, which has a smaller effective cross section than the connecting duct 17.
  • the passage opening 26 for the compressed air can be seen.
  • the channel element 21 forms part of the extension of the compressed air channel 25.
  • the sealing element 3 When assembling the closure element 1, the sealing element 3 is first pushed onto the sealing section 9 of the end piece 2 up to the guide section 7. Then the screw 5 is inserted together with the sealing washer 6 into the feed channel 16, the sealing washer 6 being placed on the support 24. The end of the screw is screwed into the threaded bore 23 of the counterpart 4 only to such an extent that it engages in the thread and that the counterpart 4 does not yet exert any axial pressure on the sealing element 3.
  • the pre-assembled end element 1 is inserted into the end of the polygonal tube 8 up to the stop 10. Then the screw 5, the head of which has a hexagon socket 27, is tightened such that the end piece 2 exerts pressure axially on the sealing element 3 with its edge 22. As a result, the sealing element 3 bears against the inside of the polygonal tube 8 and fixes the position of the
  • End element 1 against the air pressure occurring in the interior of the polygonal tube 8 and seals airtight between the polygonal tube 8 and the end piece 2.
  • a terminating element 1 in this state is shown in FIG. 3.
  • the compressed air can flow through the closure element 1 from the passage opening 26 via the compressed air duct 25 to the connecting duct 17 or in the opposite direction.
  • An adjacent polygonal tube 28 is connected to the polygonal tube 8 at a short distance.
  • the end element 29 inserted into the polygonal tube 28 is a mirror image of the end element 1.
  • the closing element 1 and the closing element 29 are connected to one another by a connecting tube 30, the ends of which are inserted into the connecting channel 17 and the connecting channel 31. An unimpeded flow of compressed air between polygonal tube 8 and polygonal tube 28 through the compressed air channels 25 and 33 is thus possible.
  • the connection pipe 30 is sealed by means of O-ring seals 32, as is known from DE 198 30 048 AI.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Gasket Seals (AREA)
  • Pipe Accessories (AREA)
  • Sealing Devices (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

L'invention concerne un élément de fermeture (1) pour tubes polygonaux à air comprimé, lequel élément de fermeture est introduit de façon étanche côté extrémité dans le tube polygonal (8) et comprend un élément d'étanchéité élastique (3). Une fois introduit, cet élément de fermeture est conçu pour solliciter ledit élément d'étanchéité (3), de sorte que cet élément d'étanchéité fixe l'élément de fermeture (1) par rapport au tube polygonal (8) et assure l'étanchéité entre ces deux derniers. Les éléments de fermeture de ce type servent à assurer l'étanchéité sur des bras de support dans des métiers à filer équipés de bras de support de rouleau supérieur et de bras de charge à pression pneumatique.
EP03767658A 2003-01-25 2003-11-26 Element de fermeture pour tubes polygonaux a air comprime sur un metier a filer Expired - Lifetime EP1590514B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10302880A DE10302880A1 (de) 2003-01-25 2003-01-25 Abschlußelement für druckluftführende Mehrkantrohre
DE10302880 2003-01-25
PCT/EP2003/013263 WO2004067821A1 (fr) 2003-01-25 2003-11-26 Element de fermeture pour tubes polygonaux a air comprime sur un metier a filer

Publications (2)

Publication Number Publication Date
EP1590514A1 true EP1590514A1 (fr) 2005-11-02
EP1590514B1 EP1590514B1 (fr) 2008-06-11

Family

ID=32667824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03767658A Expired - Lifetime EP1590514B1 (fr) 2003-01-25 2003-11-26 Element de fermeture pour tubes polygonaux a air comprime sur un metier a filer

Country Status (9)

Country Link
US (1) US7287367B2 (fr)
EP (1) EP1590514B1 (fr)
JP (1) JP2006513336A (fr)
KR (1) KR20050092441A (fr)
CN (1) CN100436673C (fr)
DE (2) DE10302880A1 (fr)
ES (1) ES2307986T3 (fr)
TW (1) TWI303678B (fr)
WO (1) WO2004067821A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008036664A1 (de) * 2008-08-06 2010-02-11 Oerlikon Textile Components Gmbh Oberwalzen-Trag- und Belastungsarm
DE102012203193A1 (de) * 2012-03-01 2013-09-05 Dr. Johannes Heidenhain Gmbh Längenmesseinrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315305C2 (de) * 1983-04-27 1986-01-30 SKF GmbH, 8720 Schweinfurt Streckwerk mit zentraler Be- und Entlastung
DE3718619C3 (de) * 1987-06-03 1995-03-23 Thyssen Polymer Gmbh Verschlußstopfen
DE3732132A1 (de) * 1987-09-24 1989-04-13 Skf Textilmasch Komponenten Spinnmaschine mit walzenstreckwerken
US5673549A (en) * 1994-08-26 1997-10-07 Caress Yarns, Inc. Method and apparatus for producing randomly variegated multiple strand twisted yarn and yarn and fabric made by said method
DE29515398U1 (de) * 1995-09-18 1995-11-23 Siemens Ag Verschlußeinrichtung
DE19829403A1 (de) * 1998-07-01 2000-01-05 Texparts Gmbh Streckwerk für Spinnereimaschinen
DE19830048C2 (de) * 1998-07-04 2000-10-19 Texparts Gmbh Spinnmaschine mit pneumatisch belasteten Oberwalzentrag- und Belastungsarmen
DE19906253A1 (de) * 1999-02-17 2000-08-31 Oskar Lehmann Gmbh & Co Kg Stopfen zum Anschluß von Rohren
DE10061832C2 (de) * 2000-12-12 2002-12-19 Helmut Bardenhagen Stopfen zur innenseitigen Rohrabdichtung
US20050183244A1 (en) * 2002-10-24 2005-08-25 Texparts Gmbh Roller mounting assembly for textile drafting system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004067821A1 *

Also Published As

Publication number Publication date
ES2307986T3 (es) 2008-12-01
DE50309987D1 (de) 2008-07-24
CN1742122A (zh) 2006-03-01
TWI303678B (en) 2008-12-01
US20050229578A1 (en) 2005-10-20
EP1590514B1 (fr) 2008-06-11
WO2004067821A1 (fr) 2004-08-12
KR20050092441A (ko) 2005-09-21
TW200506119A (en) 2005-02-16
JP2006513336A (ja) 2006-04-20
DE10302880A1 (de) 2004-08-05
US7287367B2 (en) 2007-10-30
CN100436673C (zh) 2008-11-26

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