DE102005041128A1 - Sealing bead, especially for motor vehicle bodywork, is extruded and then plastically deformed to vary the cross-sectional profile along its length - Google Patents
Sealing bead, especially for motor vehicle bodywork, is extruded and then plastically deformed to vary the cross-sectional profile along its length Download PDFInfo
- Publication number
- DE102005041128A1 DE102005041128A1 DE102005041128A DE102005041128A DE102005041128A1 DE 102005041128 A1 DE102005041128 A1 DE 102005041128A1 DE 102005041128 A DE102005041128 A DE 102005041128A DE 102005041128 A DE102005041128 A DE 102005041128A DE 102005041128 A1 DE102005041128 A1 DE 102005041128A1
- Authority
- DE
- Germany
- Prior art keywords
- strand
- sealing strip
- cross
- sectional profile
- extruded
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 239000011324 bead Substances 0.000 title abstract 4
- 238000012545 processing Methods 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims 2
- 239000002184 metal Substances 0.000 description 10
- 241000283216 Phocidae Species 0.000 description 8
- 230000001154 acute effect Effects 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
- F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
- F16J15/027—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with a hollow profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
- B29C53/043—Bending or folding of plates or sheets using rolls or endless belts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/108—Special methods for making a non-metallic packing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Seal Device For Vehicle (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft einen Strang für die Bildung von Dichtungen, insbesondere in Fahrzeugkarosserien, mit einem in Stranglängsrichtung variierenden Querschnittsprofil.The Invention relates to a strand for the formation of seals, especially in vehicle bodies, with one in the longitudinal direction of the strand varying cross-sectional profile.
Bekanntermaßen werden z.B. Türen und Kofferraumklappen von Fahrzeugkarosserien mit Hilfe an karosserieseitigen Tür- bzw. Klappenausschnitten oder auch direkt tür- bzw. klappenseitig applizierter umlaufender Stränge aus elastischem Material, wie z.B. EPDM/TPE, abgedichtet. Die extrudierten, ggf. zu einem geschlossenen Ring zusammengefügten Dichtungsstränge weisen in der Regel ein über ihre gesamte Länge gleichbleibendes Querschnittsprofil auf.Be known e.g. doors and trunk flaps of vehicle bodies with the help of body-side Door or Flap cutouts or also directly on the door or on the flap appliquierter applied strands made of elastic material, e.g. EPDM / TPE, sealed. The extruded, possibly have sealing strands joined together to form a closed ring usually one about her whole length consistent cross-sectional profile.
Aus der Wo/2004/039619 sind Dichtungsstränge der eingangs erwähnten Art bekannt, deren Querschnittsprofil in Abschnitten, welche unter starker Krümmung, z.B. an Türecken, verlegt werden, vom Querschnittsprofil in den übrigen Strangbereichen abweicht. So lassen sich Verformungen vermeiden, welche die Funktion des Dichtungsstrangs in den gekrümmten Abschnitten beeinträchtigen. Zur Änderung des Querschnittsprofils in den gekrümmten Bereichen erfolgt eine entsprechende Variation des Extrusionsspalts.Out Where / 2004/039619 are sealing strands of the type mentioned known whose cross-sectional profile in sections, which under strong Curvature, e.g. at door corners, be laid, deviates from the cross-sectional profile in the other strand areas. This prevents deformations that affect the function of the sealing strip in the curved Affect sections. To change the cross-sectional profile in the curved areas is a corresponding variation of the extrusion gap.
Der Erfindung liegt die Aufgabe zugrunde, weitere Möglichkeiten für die Konstruktion und Herstellung von Dichtungen mit variabler Querschnittsgeometrie zu erschließen.Of the Invention is the object of further possibilities for the design and manufacture of seals with variable cross-sectional geometry to open up.
Diese Aufgabe wird gemäß der Erfindung durch einen Dichtungsstrang gelöst, welcher extrudiert und zur Variation des Profilquerschnitts nachträglich plastisch verformt worden ist.These Task is carried out according to the invention solved a sealing strand, which extruded and subsequent to the variation of the profile cross section plastically has been deformed.
Gemäß der Erfindung wird ein mit ggf. konstantem Profilquerschnitt extrudierter Strang nach der Extrusion plastisch verformt, so dass sich der Profilquerschnitt in Stranglängsrichtung ändert.According to the invention becomes a extruded with possibly constant profile cross section strand plastically deformed after extrusion, so that the profile cross-section in strand longitudinal direction changes.
Vorteilhaft kann das Querschnittsprofil entsprechend einer sich in Stranglängsrichtung ändernden Einbaugeometrie variieren, so dass z.B. der Einbau erleichtert oder/und über die gesamte Stranglänge eine optimale Dicht- und Haltefunktion erreicht wird.Advantageous can the cross-sectional profile corresponding to a changing in the longitudinal direction of the strand Mounting geometry vary, so that e.g. the installation facilitates and / or over the entire strand length an optimal sealing and holding function is achieved.
Das Querschnittsprofil kann in einer Ausführungsform der Erfindung entsprechend einer sich in Stranglängsrichtung ändernden Geometrie des Dichtungssitzes variieren und insbesondere an die sich ändernde Geometrie eines den Dichtungssitz bildenden Flansches oder U-Kanals angepasst sein. Insbesondere an Fahrzeugkarosserien ist häufig ein solcher Flanschsitz für die Aufnahme von Dichtungssträngen vorgesehen.The Cross-sectional profile can in accordance with an embodiment of the invention accordingly one changing in strand longitudinal direction Geometry of the seal seat vary and in particular to the changing Geometry of a seal seat forming flange or U-channel be adjusted. In particular, to vehicle bodies is often a such flange seat for the inclusion of sealing strands intended.
Während es denkbar wäre, dass unmittelbar aus dem Extrusionsspalt austretende, vor einer Vulkanisation noch plastisch verformbare Material des Dichtungsstrangs zu verformen, wird in einer bevorzugten Ausführungsform der Erfindung, vorzugsweise nach einer Vulkanisation, nur ein dazu geeigneter Teil des Stranges plastisch verformt. Insbesondere handelt es sich hierbei um eine versteifende Einlage aus Metall oder Kunststoff. Zur plastischen Verformung in Betracht kommen auch Strangteile aus einer härteren Dichtungsmaterialmischung.While it it would be conceivable that exiting directly from the extrusion gap, before a Vulcanization still plastically deformable material of the sealing strip to deform, in a preferred embodiment of the invention, preferably after vulcanization, only a suitable part of the strand plastically deformed. In particular, this is a stiffening insert made of metal or plastic. To plastic Deformation is also considered strand parts of a harder sealant mixture.
In einer besonders bevorzugten Ausführungsform der Erfindung ist die Einlage im Querschnitt U-förmig und zur Versteifung eines U-förmigen, auf einen Flansch aufsteckbaren Verbindungsteils des Dichtungsstranges vorgesehen.In a particularly preferred embodiment The invention is the insert in cross-section U-shaped and for stiffening a U-shaped, on a flange attachable connecting part of the sealing strip intended.
Der Abstand zwischen den U-Schenkeln der U-förmigen Einlage kann in Stranglängsrichtung entsprechend einer sich ändernden Dicke des Flansches variieren, wobei z.B. bei konstanter Länge des Basisschenkels der U-förmigen Einlage der Winkel zwischen dem Basisschenkel und wenigstens einem der U-Schenkel veränderlich sein kann. Solche Dichtungsstränge werden herkömmlich mit Hilfe eines Rollformwerkzeugs im Rahmen der Montage vor Ort an den Flansch unter Verformung der U-förmigen Einlage angeformt, wobei die U-förmige Einlage je nach Dicke des Flansches mehr oder weniger stark unter Verringerung der Öffnungsweite der U-förmigen Ein lage zusammengedrückt wird. Gemäß der Erfindung wird der Dichtungsstrang mit sich ändernder Öffnungsweite der U-förmigen Einlage vorgefertigt. Die Dichtung lässt sich mit geringem Arbeits- und Kraftaufwand bequem auf den Flansch aufstecken. Dennoch sitzt der Dichtungsstrang darauf ausreichend fest. Zum Entfernen des Dichtungsstrangs sind große Abzugskräfte erforderlich.Of the Distance between the U-legs of the U-shaped insert may be in the longitudinal direction of the strand according to a changing one Thickness of the flange vary, e.g. at constant length of the base leg the U-shaped Insertion of the angle between the base leg and at least one of U-thigh variable can be. Such sealing strands become conventional with the help of a Rollformwerkzeugs during assembly on site the flange formed under deformation of the U-shaped insert, wherein the U-shaped Insert depending on the thickness of the flange more or less strong Reduction of the opening width the U-shaped A location pressed together becomes. According to the invention is the sealing strip with changing opening width of the U-shaped insert prefabricated. The seal leaves comfortable with little work and effort on the flange Attach. Nevertheless, the sealing strand sits on it sufficiently firmly. To remove the sealing strip large withdrawal forces are required.
Vorzugsweise wird die Verformung mit Hilfe einer Rollen umfassenden Bearbeitungseinrichtung durchgeführt, wobei der extrudierte Dichtungsstrang vorzugsweise direkt mit der Geschwindigkeit, mit welcher er aus dem Extrusionsspalt austritt, der Bearbeitungseinrichtung zugeführt wird.Preferably the deformation is carried out by means of a roll comprising processing means, wherein the extruded sealing strip preferably directly at the speed with which it exits the extrusion gap, the processing device supplied becomes.
Die Bearbeitungseinrichtung lässt sich mit Hilfe einer, vorzugsweise programmierbaren, Steuereinrichtung automatisch steuern.The Machining device leaves with the help of a, preferably programmable, control device control automatically.
Die Programmierung der Steuereinrichtung kann auf der Grundlage von Maßen der Profilaufnahmegeometrie an der Karosserie selbst erfolgen, oder vorzugsweise von Messwerten, welche von einem vor Ort in herkömmlicher Weise mit Hilfe eines Rollformwerkzeugs an den Dichtungssitz angeformten und wieder entfernten Mustersstrangs abgenommen worden sind.The programming of the control device can be done on the basis of dimensions of the profile receiving geometry on the body itself, or preferably from measured values which have been taken from a sample strand which has been formed on the seal seat in a conventional manner by means of a roll forming tool and removed again.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen und der beiliegenden, sich auf diese Ausführungsbeispiele beziehenden Zeichnungen näher erläutert. Es zeigen:The The invention will be described below with reference to exemplary embodiments and the enclosed, to these embodiments related drawings closer explained. Show it:
Aus
einer in
Die
Einlage
Der
in
Der
in
Dem
Längsprofil
des Flansches
Gemäß
In
dem in
Die
in
Die
Querschnittsform der Einlage im Abschnitt
Im
Abschnitt
Durch
die Bearbeitungseinrichtung
Eine
weitere Möglichkeit
zur Verformung der Einlage
Der
Dichtungsstrang
In
die Programmierung der Steuereinrichtung
Ein
Beispiel für
eine solche, beim Aufrollen unerwünscht erzeugte Verformung des
Dichtungsstrangs
Abweichend von der beschriebenen Verformung des Strangs durch bewegbare Rollen könnte eine Verformung auch diskontinuierlich mit Hilfe vorzugsweise länglicher Pressstempel erfolgen.deviant from the described deformation of the strand by movable rollers could one Deformation also discontinuous with the aid of preferably elongated Press stamp done.
Es wäre ferner möglich durch Variation des Extrusionsspalts die über der Verstärkungseinlage liegende Deckungsdicke durch Material zu verändern. Bei feststehenden Rollen kommt es dann in Stranglängsrichtung zu unterschiedlicher Verformung der Einlage.It would be further possible by varying the extrusion gap the overlying the reinforcing insert Cover thickness to change by material. For fixed roles Then it comes in strand longitudinal direction to different deformation of the insert.
Zur Verformung von Kunststoffeinlagen lassen sich geheizte Verformungswerkzeuge einsetzen.to Deformation of plastic inserts can be heated deformation tools deploy.
Claims (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005041128A DE102005041128A1 (en) | 2005-08-30 | 2005-08-30 | Sealing bead, especially for motor vehicle bodywork, is extruded and then plastically deformed to vary the cross-sectional profile along its length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005041128A DE102005041128A1 (en) | 2005-08-30 | 2005-08-30 | Sealing bead, especially for motor vehicle bodywork, is extruded and then plastically deformed to vary the cross-sectional profile along its length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102005041128A1 true DE102005041128A1 (en) | 2007-03-15 |
Family
ID=37762861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102005041128A Ceased DE102005041128A1 (en) | 2005-08-30 | 2005-08-30 | Sealing bead, especially for motor vehicle bodywork, is extruded and then plastically deformed to vary the cross-sectional profile along its length |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102005041128A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9174682B2 (en) | 2011-03-11 | 2015-11-03 | Agco International Gmbh | Engine hood arrangement |
-
2005
- 2005-08-30 DE DE102005041128A patent/DE102005041128A1/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9174682B2 (en) | 2011-03-11 | 2015-11-03 | Agco International Gmbh | Engine hood arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8105 | Search report available | ||
| 8127 | New person/name/address of the applicant |
Owner name: SAARGUMMI TECHNOLOGIES S.A.R.L., SCHENGEN, LU |
|
| 8128 | New person/name/address of the agent |
Representative=s name: DR.-ING. W. BERNHARDT U. DIPL.-PHYS. DR. R. BERNHA |
|
| 8110 | Request for examination paragraph 44 | ||
| R016 | Response to examination communication | ||
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |
Effective date: 20130420 |