WO2006008026A1 - Verfahren zur herstellung von dichtringen - Google Patents
Verfahren zur herstellung von dichtringen Download PDFInfo
- Publication number
- WO2006008026A1 WO2006008026A1 PCT/EP2005/007522 EP2005007522W WO2006008026A1 WO 2006008026 A1 WO2006008026 A1 WO 2006008026A1 EP 2005007522 W EP2005007522 W EP 2005007522W WO 2006008026 A1 WO2006008026 A1 WO 2006008026A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing ring
- cutting tool
- cutting
- ring blank
- axis
- Prior art date
Links
Classifications
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
-
- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
-
- 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
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/328—Manufacturing methods specially adapted for elastic sealings
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/38—Cutting-off equipment for sprues or ingates
- B29C45/382—Cutting-off equipment for sprues or ingates disposed outside the mould
-
- 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
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- 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
Definitions
- the invention relates to a method for producing a sealing ring from a sealing ring blank, which was produced by means of a casting process.
- sealing rings serve, in particular, on the one hand to prevent the escape of lubricants from a (bearing) region of the shaft and, on the other hand, to prevent the penetration of dust and dirt particles into the (bearing) region.
- the sealing rings are often made of an elastic material, in particular a plastic, and can be provided for stabilization with a metallic reinforcement and / or a metallic Fe ⁇ . An example of such a sealing ring is described in DE 101 54 092 A1.
- sealing rings are usually carried out by means of an injection molding process in which the metallic Ar ⁇ tion of the sealing ring is inserted into an injection mold and surrounded with an elastomer composition, which is pressed by means of an extruder into the heated injection mold. Due to this casting process, the sealing ring blank is provided with a sprue area, which must be removed after removal of the sealing ring from the injection mold in order to obtain the finished sealing ring.
- the removal of the sprue area takes place with the aid of a cutting method:
- the sealing ring is rotated about its axis of symmetry in a rotary machine; a lance-like cutting tool penetrates at a predetermined cutting angle to the rotation axis in the rotating sealing ring blank, separates the sprue from and is then retracted back to its original position.
- the cutting area Due to the casting geometry of the sealing ring, the cutting area is usually in the immediate vicinity of the sealing lip. If the blade of the cutting tool is not sharp enough, or if the cutting tool does not touch the desired cutting area (eg due to tolerances in the sealing ring geometry), sealing lip damage may occur during retraction of the cutting tool. Such injuries result in the sealing ring no longer being properly sealed in the later operation and thus being defective.
- the object of the invention is to refine the cutting method for separating the sprue area in such a way that injuries to the sealing lip of the sealing ring are avoided.
- the cutting tool is rotated after separation of the An ⁇ casting area about an axis which runs approximately parallel to the feed axis of the cutting tool. In this angular position, the cutting tool is withdrawn from the region of the sealing lip. This has the consequence that during the retraction of the cutting tool not his Schneidkan ⁇ te, but a cutting edge of adjacent, blunt Be ⁇ rich rests on the sealing lip. While retreating can The cutting tool thus no longer cut into the sealing ring ein ⁇ and thus cause no injury to the sealing lip more. In this way, injuries to the sealing lip are effectively avoided - regardless of how sharp the Schneid ⁇ tool or whether the dimensioning of the sealing ring is tole ⁇ ranzbehaftet.
- the invention comprises an easily executable additional process step;
- the invention is therefore inexpensive to implement without much additional effort.
- a rotation of the cutting tool by a few degrees is completely sufficient to achieve the described effect.
- a small angle of rotation has the advantage in the case of a lance-shaped cutting tool that the rotated cutting tool exerts only small (compressive) forces on the sealing ring during the retraction.
- FIG. 1 is a schematic sectional view of a sealing ring blank with a cutting tool acting on the sealing ring blank.
- FIG. 2 shows a plan view of a cutting region of the cutting tool.
- FIG. 1a shows a sealing ring blank 1 ', which is produced in an injection molding process by encasing a metallic armouring piece 2 with an elastomer compound ("rubber") has been.
- the heated elastomer composition is pressed into an injection mold via a feed channel (sprue); this feed channel is located in a sprue area 3 of the sealing ring blank 1 ', which must be removed after the casting process in order to obtain the finished sealing ring 1 (shown in FIG. 1b).
- a metallic spring 4 is provided, which is shown by dashed lines in the figures.
- the seal ring blank 1 ' (not shown included in the figures) in a' rotary machine and to its axis of symmetry 5 rotates (arrow 6).
- the separation takes place with the aid of a cutting tool 7 with a lance-shaped cutting area 8, in which a cutting edge 9 is provided.
- the cutting tool 7 is accommodated in a handling device (not shown in the figures), with the aid of which it can be advanced or withdrawn along a feed axis 10.
- the feed axis 10 is arranged at a predetermined angle 11 with respect to the rotation axis 5, which is preferably in a range between 30 ° and 60 ° (in the present exemplary embodiment at approximately 45 °).
- FIG. 2 shows a preferred embodiment of the cutting region 8, which, in addition to a cutting tip 12 and the first cutting edge 9, also has a second cutting edge 9 '. If the first cutting edge 9 is worn, then the cutting tool 7 can be rotated by 180 ° about the feed axis 10 by a rotation, so that now instead of the first cutting edge 9, the second cutting edge 9 'is used.
- the cutting tool 7 is in such a manner opposite the sealing ring blank 1 'orien- that a plane defined by the cutting edge 9, 12, 9 'is perpendicular to the plane defined by the feed axis 10 of the cutting tool 7 and the axis of rotation 5 of the sealing ring blank 1'. If the cutting tool is moved along the feed axis 10 in the direction of the sealing ring blank 1 '(arrow 13), then it cuts into the rotating sealing ring blank 1' with the cutting tip 12 and the cutting edge 9 and separates the sprue area in a cutting region 14 3 off. In this way, a sealing lip 15 is formed on the sealing ring 1 '(see FIG. 1b).
- the cutting tool 7 is rotated by a few degrees about an axis 10 'which coincides with the feed axis 10 (arrow 16); the position of the cutting tool 7 achieved by this rotation 16 is greatly exaggerated in FIG. 1b.
- the rotation 16 has the consequence that the cutting edge 9 is lifted off the sealing ring 1.
- the cutting tool 7 is withdrawn (arrow 17).
- the cutting edge 9 no longer rests on the upper side 18 of the sealing lip 15 during the retraction movement 17.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004035042.6 | 2004-07-20 | ||
DE102004035042A DE102004035042A1 (de) | 2004-07-20 | 2004-07-20 | Verfahren zur Herstellung von Dichtringen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006008026A1 true WO2006008026A1 (de) | 2006-01-26 |
Family
ID=34993149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/007522 WO2006008026A1 (de) | 2004-07-20 | 2005-07-12 | Verfahren zur herstellung von dichtringen |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102004035042A1 (de) |
WO (1) | WO2006008026A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108162419A (zh) * | 2017-12-26 | 2018-06-15 | 中国计量大学 | 橡胶发圈自动成型方法 |
CN108162426A (zh) * | 2017-12-26 | 2018-06-15 | 中国计量大学 | 橡胶发圈自动成型装置 |
CN108162427A (zh) * | 2017-12-26 | 2018-06-15 | 中国计量大学 | 橡胶发圈自动成型机 |
CN115431472A (zh) * | 2021-06-13 | 2022-12-06 | 浙江大学台州研究院 | 一种轴承外圈的加工设备 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2340796T3 (pl) | 2009-12-29 | 2012-02-29 | Nordenia Deutschland Gronau Gmbh | Sposób wytwarzania taśmy materiałowej, z której wykrawane są elastycznie rozciągliwe elementy zamknięcia pieluszki |
CN102601902A (zh) * | 2012-03-06 | 2012-07-25 | 贵州红阳机械(集团)公司 | 一种包覆氟塑料橡胶密封圈的修边方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1450297B1 (de) * | 1963-03-26 | 1970-09-03 | Cie Du Filage Des Metaux Et De | Verfahren und Vorrichtung zur Herstellung einer Wellendichtung sowie Wellendichtung |
US4867926A (en) * | 1986-06-16 | 1989-09-19 | Nok Corporation | Method for manufacturing oil seal |
US5346662A (en) * | 1992-10-08 | 1994-09-13 | Skf Usa Inc. | Method of manufacturing a composite seal |
US5884919A (en) * | 1991-10-18 | 1999-03-23 | Nok Corporation | Sealing device and sealing device manufacturing method |
-
2004
- 2004-07-20 DE DE102004035042A patent/DE102004035042A1/de not_active Withdrawn
-
2005
- 2005-07-12 WO PCT/EP2005/007522 patent/WO2006008026A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1450297B1 (de) * | 1963-03-26 | 1970-09-03 | Cie Du Filage Des Metaux Et De | Verfahren und Vorrichtung zur Herstellung einer Wellendichtung sowie Wellendichtung |
US4867926A (en) * | 1986-06-16 | 1989-09-19 | Nok Corporation | Method for manufacturing oil seal |
US5884919A (en) * | 1991-10-18 | 1999-03-23 | Nok Corporation | Sealing device and sealing device manufacturing method |
US5346662A (en) * | 1992-10-08 | 1994-09-13 | Skf Usa Inc. | Method of manufacturing a composite seal |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108162419A (zh) * | 2017-12-26 | 2018-06-15 | 中国计量大学 | 橡胶发圈自动成型方法 |
CN108162426A (zh) * | 2017-12-26 | 2018-06-15 | 中国计量大学 | 橡胶发圈自动成型装置 |
CN108162427A (zh) * | 2017-12-26 | 2018-06-15 | 中国计量大学 | 橡胶发圈自动成型机 |
CN115431472A (zh) * | 2021-06-13 | 2022-12-06 | 浙江大学台州研究院 | 一种轴承外圈的加工设备 |
Also Published As
Publication number | Publication date |
---|---|
DE102004035042A1 (de) | 2006-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2801711A1 (de) | Wellendichtung und verfahren zu ihrer herstellung | |
DE3490289C2 (de) | Gezahnter Treibriemen und Verfahren zu seiner Herstellung | |
DE102011089260A1 (de) | Verfahren zur Herstellung eines Bauteils durch Metallpulverspritzgießen | |
DE2905683A1 (de) | Lagerbaugruppe | |
EP1989021A1 (de) | Verfahren und vorrichtung zur fertigbearbeitung von gebauten nocken- und exzenterwellen | |
DE102006060330A1 (de) | Einsatz für eine Zylinderlaufbuchse oder einem Zylinder eines Verbrennungsmotors | |
DE2806004B2 (de) | Verfahren zum Herstellen eines elastischen Sicherheitsbehälters für Kohlenwasserstoffe | |
WO2006008026A1 (de) | Verfahren zur herstellung von dichtringen | |
DE2510779A1 (de) | Vibrations- bzw. schwingungsdaempfer sowie verfahren zur herstellung desselben | |
DE2209211A1 (de) | Dichtungsanordnung und Verfahren zu deren Herstellung | |
DE2107839A1 (de) | Öldichtung | |
EP0698743A2 (de) | Lagerbuchse | |
EP3365573B1 (de) | Gleitlagerbuchse mit integrierter dichtlippe | |
DE4440852C5 (de) | Verschlußvorrichtung für Flüssigkeitsbehälter, insbesondere Batteriestopfen sowie Verfahren zu deren Herstellung | |
DE3339355A1 (de) | Rolle und vorrichtung zu deren herstellung | |
DE69601272T2 (de) | Vibrationsdämpfende hydraulische Stütze und deren Herstellungsverfahren | |
WO2013093900A1 (de) | Maul- oder klauenförmige spaltdichtung | |
DE19511708C2 (de) | Gleitringdichtung und Verfahren zu ihrer Herstellung | |
DE1779514A1 (de) | Formpressverfahren und -vorrichtung | |
DE2052220A1 (de) | Verfahren und Vorrichtung zum Her stellen eines Gegenstandes aus Kunstharz | |
DE102017221512A1 (de) | Spindelantrieb und Aktuator einer Lenkung mit Spindelantrieb | |
DE2511302C3 (de) | Verfahren zur Herstellung eines Wellendichtringes | |
DE102005043997B4 (de) | Bauteilsatz zum Bilden eines zusammengesetzten Bauteils und Einsatzbauteil | |
DE102017101131A1 (de) | Kolben mit drei Ringnuten und einer weiteren Nut aufweisend eine Trennfuge | |
DE112020006523T5 (de) | Zahnrad-Herstellungsverfahren und Zahnrad |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |