EP1141525A1 - Procede et dispositif de fabrication d'un silencieux a absorption - Google Patents

Procede et dispositif de fabrication d'un silencieux a absorption

Info

Publication number
EP1141525A1
EP1141525A1 EP99968804A EP99968804A EP1141525A1 EP 1141525 A1 EP1141525 A1 EP 1141525A1 EP 99968804 A EP99968804 A EP 99968804A EP 99968804 A EP99968804 A EP 99968804A EP 1141525 A1 EP1141525 A1 EP 1141525A1
Authority
EP
European Patent Office
Prior art keywords
steel wool
section
tube
wool band
station
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.)
Ceased
Application number
EP99968804A
Other languages
German (de)
English (en)
Inventor
Karl Hörmann
Georg Vill
Rüdiger Wessling
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.)
Arvin Industries Deutschland GmbH
Original Assignee
Zeuna Starker GmbH and Co KG
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 Zeuna Starker GmbH and Co KG filed Critical Zeuna Starker GmbH and Co KG
Publication of EP1141525A1 publication Critical patent/EP1141525A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/04—Metallic wool, e.g. steel wool, copper wool or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/06—Inserting sound absorbing material into a chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49391—Tube making or reforming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49398—Muffler, manifold or exhaust pipe making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49828—Progressively advancing of work assembly station or assembled portion of work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5136—Separate tool stations for selective or successive operation on work
    • Y10T29/5137—Separate tool stations for selective or successive operation on work including assembling or disassembling station
    • Y10T29/5142—Separate tool stations for selective or successive operation on work including assembling or disassembling station and means to sever work from supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5185—Tube making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5197—Multiple stations working strip material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53313—Means to interrelatedly feed plural work parts from plural sources without manual intervention
    • Y10T29/53348—Running-length work
    • Y10T29/53357—Pipe section

Definitions

  • the present invention relates to a method for producing an absorption muffler, in which a section of a steel wool band is separated from a supply, a perforated tube is wrapped in the region of its perforation with the steel wool band section, the pipe wrapped with the steel wool band section is embedded in sound-absorbing material and the one wrapped with the steel wool band section and tube embedded in sound absorbing material is inserted into a housing.
  • Absorption silencers comprise at least one absorption chamber filled with sound-absorbing material, an exhaust gas-carrying pipe being connected to the absorption chamber via a perforation.
  • a known problem with absorption mufflers is the destruction of the sound absorbent material by exhaust gas pulsations.
  • it is known to cover the exhaust gas-carrying pipe in the region of its perforation with a prefabricated steel knitted stocking or to wrap it with a steel wool band section.
  • a known method of the type mentioned above is characterized in that the individual steel wool strip sections are torn from the steel wool strip supply during winding onto the respective tube.
  • a device provided for carrying out the method has a "brake" which, when actuated while the steel wool jacket is being wound, holds the steel wool tape supply adjacent to the intended separation point that the steel wool tape breaks. Accordingly, the free end of the steel wool tape section formed is wound onto the pipe while the winding continues.
  • the known generic method is disadvantageous in several respects. Particularly noteworthy here is only a low level of process reliability, i. H. a great susceptibility to failure. Furthermore, the relatively high material requirements for steel wool and the time required to carry out the method are considered disadvantageous.
  • the task on which the present invention is based is derived from this, which consists in creating a method of the type mentioned at the outset, which takes place with a relatively low amount of material and a reduced time requirement with a high degree of process reliability.
  • this object is achieved in that the steel wool strip section is separated from the supply by means of a thermal cut.
  • a device suitable for carrying out the method is accordingly characterized in that the separating station which serves to separate individual steel wool strip sections from the steel wool strip supply comprises a thermal separating device for severing the steel wool strip. This measure alone can significantly increase the process reliability of the method mentioned at the beginning. Because by cutting the steel wool strip by means of a thermal cut, the free ends of the cut steel wool threads of each of the two steel wool strip sections are welded together.
  • the tensile strength that can be applied which increases with the number of steel wool threads to be cut, limits both the width of the steel wool band and its strength.
  • the possibility provided by the present invention to process a wider and / or stronger steel wool band is reflected in a number of further decisive advantages.
  • the steel wool tape only needs to be wrapped around the tube two to four times in order to ensure adequate protection of the sound absorbing material. This leads to a considerable shortening of the manufacturing process compared to the prior art, which is conditional the use of a thinner and narrower steel wool strip means that a multiple number of windings is required.
  • the steel wool band used in the previously known method is narrower than the axial extent of the perforated area of the tube, an axial reversing movement of the steel wool band is required when wrapping the tube.
  • an unnecessarily large amount of material is consumed and the weight of the silencer increases unnecessarily. This is all the more true after the previously used low-strength steel wool tapes can only be manufactured with a relatively large tolerance, so that for safety reasons some additional windings have to be carried out.
  • a steel wool tape of almost any width and thickness can be processed using the present invention.
  • a correspondingly strong steel wool tape can be manufactured with a low tolerance, so that there is no need to wrap safety supplements.
  • the fact that the free ends of the steel wool threads are welded to one another in the region of the two end faces of each steel wool band section is not only reflected during the manufacture of the corresponding silencer. This feature also proves to be particularly favorable when the silencer is in use. Because in this way there is a risk that the steel wool band section in the region of its two end edges will be damaged by the pulsating exhaust gas is significantly reduced. This leads to a longer service life of the corresponding silencer.
  • the tube to be wrapped with the steel wool band section can, but does not have to have a round cross section. It can also be composed of several components and / or have attached components. So-called inner baskets and comparable hollow bodies are also to be regarded as "tubes" in the sense of the present invention.
  • the steel wool strip can be separated from the steel wool strip supply before the winding is started or after the winding has started.
  • the pre-commissioning of the steel wool belt sections mentioned in the first place is in turn favored by the problem-free transport of the sections; it leads to a further noticeable time saving in the production process for absorption silencers.
  • the steel wool band section is particularly preferably separated from the supply by resistance melting.
  • the thermal separation device particularly preferably comprises a resistance melting bar which is connected to a power supply unit.
  • the steel wool strip section is attached to the tube at the beginning of the winding process in the region of its front end - in the conveying direction - by means of at least one spot weld. Accordingly, it stands out for use in Device provided as part of the method according to the invention advantageously characterized in that at least one spot welding electrode is assigned to the winding station.
  • at least one spot welding electrode is assigned to the winding station.
  • the finished wound steel wool strip section can also be attached to the tube at the end of the winding process in the region of its rear end in the conveying direction. This again saves time compared to the prior art, in which for the purpose of mechanical matting or interlocking of the steel wool threads, a several-revolution wake, during which a mechanical friction element is pressed against the wound steel wool jacket, is required.
  • fixing the steel wool strip section to the pipe by means of spot welding is by no means mandatory.
  • fixation by mechanical hooking with needles is also possible.
  • the present invention enables the width of the steel wool strip to be greater than the axial length of the to select the perforated area of the tube so that reversing of the steel wool tape to be wound is not necessary. This does not, of course, preclude that such a reversing device is nevertheless used under certain conditions. This can prove to be expedient, for example, in order to avoid the production of an extra wide steel wool band in individual cases, ie with a particularly large axial length of the perforated area of the tube, and to use a narrower steel wool band instead.
  • steel wool tape is not only to be understood as a tape made of disoriented steel threads which are matted together. Rather, this term also includes tapes made from steel threads in which the threads assume a predetermined arrangement and orientation, for example in the form of a knitted fabric or fabric.
  • This shows a schematic view of a device for separating a steel wool band section from a steel wool band supply and for wrapping a perforated tube of an absorption silencer in the area of its perforation with the steel wool band section.
  • the device illustrated in the drawing comprises a frame 1.
  • a holder 2 for a wound steel wool tape supply 3 is mounted thereon.
  • a bed 4 is arranged within the frame 1.
  • a transport unit 5 is assigned to this. This conveys the steel wool strip 6 unwound from the steel wool strip supply 3 along the bed 4 in the direction (arrow A) towards the winding station 7.
  • This in turn comprises a motor-driven receptacle 8 for the tube to be wrapped.
  • a separation station 9 is arranged within the frame 1, which comprises a thermal separation device 10 with a resistance melting bar 11.
  • the resistance melting bar 11 can be raised and lowered by means of an associated drive (double arrow B).
  • a welding unit 12 is provided below the winding station 7. This comprises two spot welding electrodes 13. These are driven to be vertically displaceable (double arrow C). With them, the beginning and the end of the respective steel wool band section can be attached to the pipe.
  • the winding station 7 comprises a reversing device (not shown) which, if necessary, brings about an axial displacement of the steel wool strip section to be wound.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un silencieux à absorption, dans lequel on sépare un segment d'une bande de paille de fer d'une réserve, on enveloppe un tube perforé au niveau de sa perforation avec le segment de bande de paille de fer, on pose le tube enveloppé avec le segment de bande de paille de fer dans un isolant sonore et on place le tube enveloppé avec le segment de bande de paille de fer et posé dans de l'isolant sonore dans un boîtier. Le procédé selon l'invention est caractérisé en ce que la séparation du segment de bande de paille de fer de la réserve se fait à l'aide d'une découpe thermique. Un dispositif convenant à l'exécution du procédé comprend un poste de réserve pour la bande de paille de fer (6), un poste de séparation (9) pour séparer des segments de bande de paille de fer individuels de la réserve de bande de paille de fer, un poste de transport pour transporter la bande de paille de fer ou le segment de bande de paille de fer dans le sens (A) sur le tube à envelopper, et enfin un poste de bobinage (7) pour envelopper le tube avec le segment de bande de paille de fer, le poste de séparation (9) comportant un dispositif de séparation thermique (10) pour le sectionnement de la bande de paille de fer (6).
EP99968804A 1999-01-14 1999-12-18 Procede et dispositif de fabrication d'un silencieux a absorption Ceased EP1141525A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19901150A DE19901150A1 (de) 1999-01-14 1999-01-14 Verfahren und Vorrichtung zur Herstellung eines Absorptionsschalldämpfers
DE19901150 1999-01-14
PCT/EP1999/010109 WO2000042301A1 (fr) 1999-01-14 1999-12-18 Procede et dispositif de fabrication d'un silencieux a absorption

Publications (1)

Publication Number Publication Date
EP1141525A1 true EP1141525A1 (fr) 2001-10-10

Family

ID=7894220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99968804A Ceased EP1141525A1 (fr) 1999-01-14 1999-12-18 Procede et dispositif de fabrication d'un silencieux a absorption

Country Status (6)

Country Link
US (1) US6588105B1 (fr)
EP (1) EP1141525A1 (fr)
DE (1) DE19901150A1 (fr)
HU (1) HUP0103963A3 (fr)
WO (1) WO2000042301A1 (fr)
ZA (1) ZA200105779B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018188092A1 (fr) * 2017-04-14 2018-10-18 深圳市源畅通科技有限公司 Machine à poinçonner présentant un bon effet d'amortissement

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1929415A (en) * 1930-04-21 1933-10-10 California Corrugated Culvert Manufacture of welded spiral pipe
DE665167C (de) * 1935-12-09 1938-09-22 Servais Silencers Ltd Absorptionsmaterial fuer Schalldaempfer
FR2166670A5 (fr) * 1971-12-30 1973-08-17 Barbera Daniel
DE2745389C2 (de) * 1977-10-08 1984-03-08 Hoesch Werke Ag, 4600 Dortmund Verfahren und Vorrichtung zur Herstellung mehrschichtiger Schraubennahtrohre
EP0074220A3 (fr) * 1981-08-26 1984-05-16 Lancaster Glass Fibre Limited Insertion pour silencieux
SE446647B (sv) * 1985-02-19 1986-09-29 Malmsten Sven O Ljuddempande avgasledning och framstellning derav
DE3805469C1 (en) * 1988-02-22 1988-09-08 Eisen- Und Hammerwerk Gmbh, 7835 Teningen, De Apparatus for the production of a steel-wool hose
DE3826707A1 (de) * 1988-08-05 1990-02-08 Gruenzweig & Hartmann Verfahren zum herstellen eines abgas-schalldaempfers
ES2043123T3 (es) * 1990-01-20 1993-12-16 Thyssen Industrie Procedimiento y dispositivo para soldar una con otra chapas de acero mediante un procedimiento de soldadura por rayo laser.
JP3207608B2 (ja) * 1993-04-19 2001-09-10 三恵技研工業株式会社 消音器の製造方法および製造装置
JP2967390B2 (ja) * 1994-04-21 1999-10-25 本田技研工業株式会社 消音器及びその製造方法
DE4429281A1 (de) * 1994-08-19 1995-03-23 Losberger Sonnenschutz Verfahren und Vorrichtung zum Konfektionieren großflächiger flexibler Flächengebilde
US5711879A (en) * 1996-03-04 1998-01-27 American Metal Fibers Radial-flow filter and method of manufacture
US6138791A (en) * 1998-03-10 2000-10-31 Bay Industries, Inc. Muffler sleeve, and method and apparatus for manufacturing same
US6191382B1 (en) * 1998-04-02 2001-02-20 Avery Dennison Corporation Dynamic laser cutting apparatus
JP4132489B2 (ja) * 1999-10-19 2008-08-13 本田技研工業株式会社 マフラー構造

Non-Patent Citations (1)

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Title
See references of WO0042301A1 *

Also Published As

Publication number Publication date
WO2000042301A8 (fr) 2001-03-15
US6588105B1 (en) 2003-07-08
HUP0103963A3 (en) 2002-05-28
HUP0103963A2 (hu) 2002-03-28
DE19901150A1 (de) 2000-07-27
WO2000042301A1 (fr) 2000-07-20
ZA200105779B (en) 2002-08-23

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