DE900268C - Method and device for the production of plastic bellows from ring disks - Google Patents
Method and device for the production of plastic bellows from ring disksInfo
- Publication number
- DE900268C DE900268C DEM6486D DEM0006486D DE900268C DE 900268 C DE900268 C DE 900268C DE M6486 D DEM6486 D DE M6486D DE M0006486 D DEM0006486 D DE M0006486D DE 900268 C DE900268 C DE 900268C
- Authority
- DE
- Germany
- Prior art keywords
- tool
- heat
- disks
- rings
- ring disks
- 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.)
- Expired
Links
Classifications
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- 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
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/63—Internally supporting the article during joining
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
- B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
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- 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
- B29L2031/703—Bellows
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Diaphragms And Bellows (AREA)
Description
Verfahren und Vorrichtung zur Herstellung von Kunststoff-Faltenbälgen aus Ringscheiben Es ist bekannt, Faltenbälge aus Kunststoffen durch Verbindung profilierter ringscheiben herzustellen. Dabei werden deren aus der Ebene herausgebogene Ränder so aneinandergelegt, daß sie stumpf oder mit Bord zusammenstoßen oder sich überlappen. Die Verbindung der Berührungsstellen der Ringscheiben im unterbrochenen Arbeitsgang ist aber zeitraubend und schwierig, da sich die erweichten oder erwärmten Berührungskanten leicht verziehen oder gegeneinander verschieben und dadurch die Herstellung maßhaltiger Erzeugnisse mit gleichmäßigen Eigenschaften in Frage stellen.Method and device for the production of plastic bellows from ring disks It is known that plastic bellows are profiled by connection to manufacture ring washers. Their edges are bent out of the plane placed next to each other so that they butt or collide with the edge or overlap. The connection of the contact points of the ring disks in an interrupted operation but is time-consuming and difficult because the softened or heated contact edges easily warped or shifted against each other and thus the production is more dimensionally accurate Question products with consistent properties.
Die Erfindung betrifft ein Verfahren und dine Vorrichtung, mittels welcher die gleichzeitige Verbindung einer Mehrzahl von Ringscheiben beliebigen Profils zu Faltenbälgen z. B. auf thermoplastischem Wege erfolgt, wobei nicht nur die erforderliche Gleichmäßigkeit des Fertigerzeugnisses, sondern auch eine wesentliche Ersparnis an Arbeitszeit erreicht wird. The invention relates to a method and device by means of which the simultaneous connection of a plurality of ring disks arbitrary Profile for bellows z. B. takes place thermoplastically, and not only the required uniformity of the finished product, but also an essential one Saving of working time is achieved.
Erfindungsgernäß wird eine der Gesamt; oder einer Teillänge des Faltenbalges entsprechende Anzahl von Ringscheiben in einem, Außfenwerkzeug oder/und auf oder in einem Innenwerkzeug und unter Druck, Anwendung von Klebemitteln oder/und Wärme an ihren Berührungsstellen in einem Arbeitsgange verbunden. Hierbei. können auf die Berührungsstellen der Ringscheiben vor dem Aneinanderreihen Lösungs- bzw. Klebemittel aufgebracht werden oder zwischen ihnen durch LöP sungsmittlel oder Wärme erweichende bzw. bindende Zwischenglieder angeordnet werden. Der Vorteil des erfindungsgemäßen Verfahrens besteht also darin, daß nicht mehr die einzelnen Scheiben nacheinander verbunden werden, sondern eine beliebige Menge von ihnen in eine Vorrichtung eingebracht und darauf gleichseitig gegebenenfalls unter Einwirkung von Wärme an den zusammenstoßenden Rändern verklebt oder verschweißt wird. According to the invention, one of the total; or part of the length of the bellows corresponding number of ring disks in one, external tool and / or on or in an internal tool and under pressure, application of adhesives and / or heat connected at their points of contact in one operation. Here. can on the contact points of the ring disks lining up Solvents or adhesives are applied or between them by means of solvents or heat-softening or binding intermediate links are arranged. The advantage of the method according to the invention is that no longer the individual Slices are connected one after the other, but any amount of them in introduced a device and on it at the same time, possibly under action is glued or welded by heat at the abutting edges.
Dadurch wird nicht nur der bei nacheinander erfolgender Verklebung einzelner Schei,blen erforderliche Arbeitsaufwand auf einen kleinen Bruchteil herabgemindert, sondern es ist auch, da der Faltenbalg bis zum Festwerden der chemisch oder/undi thermisch erweichten Berührungsstellen in der Vorrichtung verbleiben kann einVerzizehen und Verschieben der Teile gegeneinander ausgeschlossen. Derart wird erst der Ablfall in erträglichen Grenzen gehalten und ein maßhaltiges Erzeugnis gewonnen.This not only results in successive gluing individual slices of work required reduced to a small fraction, but it is also because the bellows up to the solidification of the chemically or / undi thermally softened contact points can remain in the device and shifting of the parts against each other is excluded. That is what waste becomes kept within tolerable limits and a dimensionally stable product obtained.
Die Vorrichtungen zur Ausübung des erfindungsgemäßen Verfahrens können der Art der gewählten Verbindung entsprechend ausgebildet sein und z. B. aus einem dornförmigen Innenwerkzeug zum Aufreihen der Rundscheiben, einem auf dieses aufschiebbaren Druckstück und einem die Ringscheiben umfassenden Außenwerkzeug bestehen. Zweckmäflig können Innen- und Außenwerkzeug mehrteilig ausgebildet sein, z. B. aus einer Anzahl aneinandergereihter Ringe bestehen. Derart wird es auch möglich, die Vorri,chtung der wechselnden Länge der zu fertigenden Faltenbälge anzupassen. Ferner kann die Vorrichtung auch so ausgebildet werden, daß eine Teillänge des bereits gefertigten Faltenbalges in sie nochmals eingeführt und daran anschließend eine weitere Teillänge hergestellt werden kann. Derart lassen sich Faltenbälge beliebiger Länge gewinnen. The devices for performing the method according to the invention can be designed according to the type of connection selected and z. B. from a Thorn-shaped inner tool for lining up the round disks, one that can be pushed onto this Pressure piece and an outer tool comprising the ring disks exist. Appropriate Inner and outer tools can be made in several parts, e.g. B. from a number of lined up rings. In this way it is also possible to adjust the precaution to adapt to the changing length of the bellows to be manufactured. Furthermore, the Device can also be designed so that a partial length of the already manufactured Bellows inserted into it again and then another part length can be produced. In this way, bellows of any length can be obtained.
Die Zeichnung veranschaulicht einige Ausführungsbeispiele der Vorrichtung zur Herstellung von Faltenbälgen nach dem erfindungsgemäßen Verfahren, und zwar stellt dar Abb. I einen Schnitt durch einen Teil der IRTorrichtung, bei der die Einzelteile mittels ringförmiger Einlagen aus anderem, leichter erweithenden Werlistofi verbunden werden, wobei die ganze Vorrichtung erwärmt werden kann, Abb. 2 einen Schnitt durch einen Teil der Vorrichtung, bei der die Erwärmung örtlich begrenzt ist, Abb. 3 einen Schnitt durch eine mehrteilige Vorrichtung, wobei die Scheibenränder aufgebördelt sind. The drawing illustrates some exemplary embodiments of the device for the production of bellows according to the method according to the invention, namely shows Fig. I a section through part of the IRTorrichtung, in which the Individual parts by means of ring-shaped inlays from other, more easily expanding Werlistofi connected, whereby the whole device can be heated, Fig. 2 a Section through part of the device in which the heating is localized Fig. 3 is a section through a multi-part device, with the disc edges are flared.
Die Vorrichtung nach Abb. I besteht aus dem dornförmigen Innenwerkzeug a und dem matrizenförmigen Außenwerkzeug b. Das Innenwerkzeug a kann zur Erleichterung der Wärmezufuhr von innen hohl ausgebildet sein. Die Heizkörper können aber auch innerhalb der Werkzeuge angeordnet werden. The device according to Fig. I consists of the mandrel-shaped inner tool a and the die-shaped outer tool b. The inner tool a can for relief the heat supply from the inside be hollow. The radiators can also be arranged within the tools.
Diese können aus hitzebeständigen, z. B. keramischen Stoffen bestehen. Hier wie in den anderen Ausführungsbeispielen können neben den wärmeabgebenden Teilen zur örtlichen Begrenzung der Wärmeeinwirkung Bohrungen oder Leitungen zur Aufnahme von Kühlmitteln angeordnet sein Die Kühlmittelzufuhr kann auch nach der Wärmezufuhr erfolgen, um nach erreichter Verformung und Verbindung der Scheiben diese möglichst rasch zum Erstarren zu bringen. Auch können innerhalb der Werkzeuge Bohrungen vorgesehen sein, durch die abwechselnd Heiz- und Kühlmittel geschickt werden.These can be made of heat-resistant, e.g. B. consist of ceramic materials. Here, as in the other exemplary embodiments, in addition to the heat-emitting parts For local limitation of the effect of heat, boreholes or lines for absorption The coolant supply can also be arranged after the heat supply take place in order to achieve this as possible after deformation and connection of the panes to freeze quickly. Holes can also be provided within the tools be through which heating and cooling medium are sent alternately.
Die zu verb!indenden Ringscheiben können vorgeformt sein. Sie können aber auch als Flachscheiben eingebracht und erst innerhalb der dann mehrteilig ausgebildeten und entsprechend profilierten Werkzeuge unter Einwirkung von Druck oder/und Wärme die endgültige Form zugleich mit ihrer Verbindung erhalten. Eine sich dem Profil des Faltenbalges anpassende Profilierung kann sich auch bei Verwendung vorgeformter Rngscheiben als zweckmäßig erweisen, da es in manchen Fällen, besonders bei Anwendung von Wärme, erforderlich sein kann, Formänderungen der erweichten Teile während des Verbindungsvorganges zu verhüten. Die Profilierung kann auch nur beim Außenwerkzeug vorgesehen sein, während die Abstützung von innen durch Einführung von Druckmitteln, z. B. Druckluft erreicht wird. Das Druckmittel kann erwärmt werden und dadurch die thermoplastische Verformung o:derlund Verklebung bzw. Verschweißung bewirken. The ring disks to be connected can be preformed. You can but also introduced as flat disks and only within the then multi-part and appropriately profiled tools under the influence of pressure and / or heat receive the final shape at the same time as their connection. One himself to the profile Profiling that matches the bellows can also be achieved when using preformed Ring washers prove to be useful, as in some cases, especially when using of heat, may be required, changes in shape of the softened parts during the To prevent the connection process. Profiling can also only be done with the external tool be provided, while the support from the inside by the introduction of pressure means, z. B. compressed air is achieved. The pressure medium can be heated and thereby the cause thermoplastic deformation o: derlund gluing or welding.
Bei Verwendung vorgeformter, profilierter Ringscheiben, die jede beliebige geeignete Form haben können, werden diese, wie die Abb. I zeigt, in den Zwischenraum zwischen dem Innen- und Außenwerkzeug eingebracht, jedoch wird zwischen je 2 Ringscheiben c eine Einlage d eingeführt. Diese Einlage besitzt eine größere Schlußfähigkeit als der Werkstoff der Ringscheiben. Sie kann auch an einer der beiden benachbarten Ringscheiben zuvor befestigt worden sein. Die Verbindung kann aber auch ohne Einlage durch unmittelbares Verkleben oder Vers.chweiß en der aufeinanderliegenden Kanten erfolgen. When using preformed, profiled washers, each can have any suitable shape, these are, as Fig. I shows, in the Gap introduced between the inner and outer tool, but between each 2 ring disks c an insert d introduced. This insert has a larger one Closing ability as the material of the ring disks. You can also join one of the two adjacent ring disks have previously been attached. But the connection can even without an insert by directly gluing or welding the one on top of the other Edges are made.
In der gefüllten Vorrichtung werden. die Ringscheiben unter Anwendung von Klebemitteln und Druck oder/und Wärme vereinigt Die Höhe der Temperatur kann hierbei so bemessen werden, daß zwar die Einlagen erweichen, die Ringscheiben aber ihre Form noch nicht verändern. Be in the filled device. using the washers Combined by adhesives and pressure and / or heat The level of temperature can in this case are dimensioned so that although the deposits soften, the ring disks however do not change their shape yet.
Bei dem Ausführungsbeispiel nach der Abb. 2 slind die Ringscheiben.c in gleicher Weise, aber ohne Einlagen, an eine Vorrichtung, die aus Innenwerkzeug 5 und Außlenwerkzeug b besteht, eingebracht. Dabei können die Kanten der Ringscheiben stumpf aneinanderstoßen, wie bei Abb. I, oder sich üblerlappen, wie bei dem Ausführungsbeispiel in Abb. 2 gezeigt. Dort, wo die Stostellen oder die Überlappungen e am Außenwerkzeug b und am Innenwerkzeug a anliegen, ist it der Wandung dieser Teile ein Heizkörper f so angeordnet, daß er örtlich auf die Stoß- oder'tSberlappungsstelle erwärmend einwirkt und derart eine innige Verbindung der Kanten entsteht. In the embodiment according to Fig. 2, the ring disks.c in the same way, but without inserts, to a device consisting of an internal tool 5 and outer tool b is introduced. The edges of the ring disks butt against each other, as in Fig. I, or overlap, as in the embodiment shown in Fig. 2. Where the joints or overlaps e on the outer tool b and rest on the inner tool a, the wall of these parts is a heating element f arranged in such a way that it locally heats the joint or overlap point acts and creates an intimate connection between the edges.
Soll der Faltenbalg aus Ringscheiben mit aufgebördelten Kanten wie in Abb. 3 gefertigt werden, so sind Außen und Innenwerkzeug zweckmäßig, wie z. B. in Abb. 3 gezeigt, mehrteilig auszubilden. Should the bellows be made from annular disks with flared edges such as are manufactured in Fig. 3, so the outer and inner tools are appropriate, such as. B. shown in Fig. 3 to train in several parts.
Die z. B. ringförmigen Werkzeugteile g und k erfassen die Bördelkanten der Ringscheiben c in Nuten k, die entweder im gleichen Ring oder, wie im Ausführungsbeispiel, anteilig in je zwei Ringen angeordnet sein können. In diesen Nuten oder innerhalb der die Nut umgebenden Werkzeugwand können Heizkörper m so eingeführt sein, daß die Überlappung i unter örtlich begrenztem Wärmeeinfluß steht und dadurch ve!rschweißt. Wie bei den anderen Ausführungsbeispielen kann auch hier das fertige Federrohr dem Werkzeug entnommen werden. Hierbei können bei breiter Überlappung die rimgförmCigen Werkzeugteile zwecks Erleichterung der Entnahme hälftig geteilt sein. Um ein genaues Zusammenpassen der Werkzeugteile zu erreichen, können diese z. B. mit einer Nut n und Feder o versehen sein.The z. B. annular tool parts g and k capture the flanged edges of the annular disks c in grooves k, which are either in the same ring or, as in the exemplary embodiment, can be arranged proportionally in two rings. In these grooves or within of the tool wall surrounding the groove, heating elements m can be inserted so that the overlap i is under the locally limited influence of heat and is thus welded together. As in the other exemplary embodiments, the finished spring tube can also dem Tool can be removed. With a wide overlap, the rim-shaped Tool parts must be divided in half to facilitate removal. To be precise To achieve matching of the tool parts, these can, for. B. with a groove n and spring o be provided.
Sämtliche Ausführungsbeispiele können dem Werkstoff und der Form der zu fertigenden Federkörper entsprechend abgeändert werden. In allen Fällen wird das Fertigerzeugnis nicht nur auf einfachere Weise und wirtschaftlicher, sondern auch mit größerer Maßhaltigkeit und geringerem Ausschuß als blisher gewonnen. All exemplary embodiments can be of the material and the shape the spring body to be manufactured can be modified accordingly. In all cases it will the finished product not only in a simpler and more economical way, but also obtained with greater dimensional accuracy and less scrap than blisher.
Nach dem Verfahren lassen sich ebenso wie Faltenbälge auch Rohrleitungen beliebiger Länge durch Aneinanderreihen von Ringscheiben gewinnen, da an die fertiggestellte Teillänge beliebig oft weitere Teillängen angefügt werden können. The process can also be used for pipelines like bellows win any length by lining up ring disks, because of the finished Part length further part lengths can be added as often as required.
PATENTANSPRSCIIE: I. Verfahren zur Herstellung von Kunststoff-Faltenbälgen aus Ringscheiben, dadurch gekennzeichnet, daß eine der Gesamt- oder einer Teillänge des Faltenbalges entsprechende Anzahl von Ringscheiben in einem Außenwerkzeug oder/und auf oder in einem Innenwerkzeug und unter Druck, Anwendung von Klebemitteln oder/und Wärme an ihren Berührungsstellen in einem Arbeitsgang verbunden wird. PATENT APPLICATION: I. Process for the production of plastic bellows of ring disks, characterized in that one of the total or part of the length of the bellows corresponding number of ring disks in an external tool and / or on or in an internal tool and under pressure, application of adhesives and / or Heat is connected at their points of contact in one operation.
Claims (1)
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DEM6486D DE900268C (en) | 1944-02-09 | 1944-02-09 | Method and device for the production of plastic bellows from ring disks |
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DEM6486D DE900268C (en) | 1944-02-09 | 1944-02-09 | Method and device for the production of plastic bellows from ring disks |
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DE900268C true DE900268C (en) | 1953-12-21 |
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DEM6486D Expired DE900268C (en) | 1944-02-09 | 1944-02-09 | Method and device for the production of plastic bellows from ring disks |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1126125B (en) * | 1956-09-15 | 1962-03-22 | Dunlop Rubber Co | Method and arrangement for the production of bellows from plastic that is deformable in the heat |
EP0059287A1 (en) * | 1981-03-03 | 1982-09-08 | Unilever Plc | Process and apparatus for fabrication of packages and containers |
-
1944
- 1944-02-09 DE DEM6486D patent/DE900268C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1126125B (en) * | 1956-09-15 | 1962-03-22 | Dunlop Rubber Co | Method and arrangement for the production of bellows from plastic that is deformable in the heat |
EP0059287A1 (en) * | 1981-03-03 | 1982-09-08 | Unilever Plc | Process and apparatus for fabrication of packages and containers |
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