DE3627519A1 - Elastic material and process and apparatus for producing it - Google Patents
Elastic material and process and apparatus for producing itInfo
- Publication number
- DE3627519A1 DE3627519A1 DE19863627519 DE3627519A DE3627519A1 DE 3627519 A1 DE3627519 A1 DE 3627519A1 DE 19863627519 DE19863627519 DE 19863627519 DE 3627519 A DE3627519 A DE 3627519A DE 3627519 A1 DE3627519 A1 DE 3627519A1
- Authority
- DE
- Germany
- Prior art keywords
- elastic material
- knitted fabric
- heating device
- reinforcement
- hose
- 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
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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/023—Half-products, e.g. films, plates
- B29B13/024—Hollow bodies, e.g. tubes or 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
- B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Abstract
Description
Die Erfindung betrifft ein elastisches Material mit einer Be wehrung. Ferner betrifft die Erfindung ein Verfahren und eine Vorrichtung zur Herstellung des elastischen Materials.The invention relates to an elastic material with a loading defense. The invention further relates to a method and a Device for manufacturing the elastic material.
Aus der DE-OS 23 37 623 ist es bekannt, elastomere Schläuche mit einer Bewehrung aus Gewebe herzustellen. Das Gewebe gibt - zwar eine Bewehrung, ermöglicht aber keine Dehnung.From DE-OS 23 37 623 it is known to use elastomeric hoses with fabric reinforcement. The tissue gives - Reinforcement, but does not allow expansion.
Aufgabe der Erfindung ist es, ein elastisches Material mit einer Bewehrung zu schaffen, welches einerseits eine große Festigkeit und andererseits eine große Dehnbarkeit besitzt.The object of the invention is to provide an elastic material with a To create reinforcement, which on the one hand has great strength and on the other hand has great elasticity.
Diese Aufgabe wird dadurch gelöst, daß die Bewehrung ein Ge strick ist.This problem is solved in that the reinforcement is a Ge is knit.
Das Verfahren zur Herstellung des elastischen Materials ist durch die Merkmale des Patentanspruches 4 gekennzeichnet.The process for making the elastic material is through characterized the features of claim 4.
Die Vorrichtung zur Herstellung des elastischen Materials ist durch die Merkmale des Patentanspruches 5 gelöst.The device for manufacturing the elastic material is solved by the features of claim 5.
Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispieles anhand der Fi gur. Die Figur zeigt eine Vorrichtung in Seitenansicht, teilweise in geschnittener Darstellung.Further features and advantages of the invention result from the description of an embodiment using the Fi gur. The figure shows a device in side view, partially in a sectional view.
Die Vorrichtung weist einen Rahmen 1 auf, auf dem eine hohlzy lindrische Heizeinrichtung 2 so montiert ist, daß sie sich mit ihrer Längsachse in waagerechter Richtung erstreckt. Die Heiz einrichtung weist über ihren inneren Umfang verteilt sich in ra dialer Richtung nach innen erstreckende Düsen 3 oder sich in Um fangsrichtung erstreckende Rillen und mit diesen verbundene Dü sen zum Zuführen von in radialer Richtung gerichteter Preßluft auf.The device has a frame 1 , on which a hohlzy-cylindrical heating device 2 is mounted so that it extends with its longitudinal axis in the horizontal direction. The heating device has distributed over its inner circumference in ra dialer direction inwardly extending nozzles 3 or in order to circumferentially extending grooves and connected with these nozzles for supplying compressed air directed in the radial direction.
Ferner ist ein Dorn 5 in Form eines zylindrischen Kernes vorge sehen, der in einer Halterung 6 koaxial mit der Achse der Heiz einrichtung 2 ausgerichtet und in Richtung des Doppelpfeiles 7 in die Heizeinrichtung hinein bzw. aus dieser heraus in die ge zeigte zurückgezogene Stellung bewegbar ist.Furthermore, a mandrel 5 is provided in the form of a cylindrical core, which is aligned in a holder 6 coaxially with the axis of the heating device 2 and in the direction of the double arrow 7 in the heating device or out of this in the ge shown retracted position is movable .
Der Dorn weist einen Metallzylinder 8 auf. Über dem Metallzylin der befindet sich eine elastische Ummantelung 9. Der Metallzy linder weist eine Oberfläche mit einer Vielzahl von Bohrungen, also eine Art siebförmige Oberfläche, auf. Das Innere des Metallzylinders ist mit einer Preßluftzufuhr 10 verbunden.The mandrel has a metal cylinder 8 . There is an elastic jacket 9 above the metal cylinder. The Metallzy cylinder has a surface with a plurality of holes, that is, a kind of sieve-shaped surface. The inside of the metal cylinder is connected to a compressed air supply 10 .
Wie aus der Figur ersichtlich ist, ist spiegelsymmetrisch zu der Heizeinrichtung 2 ein entsprechender Dorn mit Preßluftzufuhr vor gesehen.As can be seen from the figure, a corresponding mandrel with compressed air supply is seen before mirror-symmetrically to the heating device 2 .
Ferner ist eine Steuerung 11 vorgesehen, die sowohl die Wärmezu fuhr zur Heizeinrichtung 2 als auch die Preßluftzufuhr 10 und die Preßluftzufuhr durch die Düsen der Heizeinrichtung bezüglich des Ausmaßes und der Dauer steuert. Furthermore, a controller 11 is provided which controls both the heat supply to the heating device 2 and the compressed air supply 10 and the compressed air supply through the nozzles of the heating device with respect to the extent and duration.
Zur Herstellung des elastischen Materials wird auf den Dorn 5 ein rundgestricktes Gestrick locker übergezogen. Über die Preß luftzufuhr 10 wird Preßluft so zugeführt, daß die elastische Um mantelung gerade so weit aufgeblasen wird, daß das Gestrick locker gespannt ist und keine Falten mehr wirft. Anschließend wird der Rohgummi bzw. ein entsprechender Kunststoff aufgetra gen. Dann wird der Dorn in die hohlzylindrische Heizeinrichtung 2 hineingeführt. In der Heizeinrichtung wird durch weiteres Auf blasen der elastischen Ummantelung der für die Vulkanisation gewünschte Druck erzeugt. Die erforderliche Heizung wird über die hohlzylindrische Ummantelung der Heizeinrichtung zugeführt. Die Dauer der Heizung und des Druckes hängt wie beim üblichen Vulkanisieren von der Gummi- bzw. Kunststoffmasse ab.To produce the elastic material, a circular knitted fabric is loosely coated on the mandrel 5 . About the press air supply 10 , compressed air is supplied so that the elastic jacket is just inflated to such an extent that the knitted fabric is loosely stretched and no longer wrinkles. Then the raw rubber or a corresponding plastic is applied. Then the mandrel is inserted into the hollow cylindrical heating device 2 . In the heating device, the pressure required for the vulcanization is generated by further blowing on the elastic jacket. The required heating is supplied to the heating device via the hollow cylindrical casing. The duration of the heating and the pressure depends on the rubber or plastic mass, as with normal vulcanization.
Am Ende des Vulkanisiervorganges wird über das Ventil 13 der Raum zwischen dem Metallzylinder und der Ummantelung belüftet und damit der Durchmesser des Dornes wieder verkleinert. Gleich zeitig wird in der Heizeinrichtung in radialer Richtung geblasen, so daß sich das elastische Material von der Oberfläche der Heiz einrichtung ablöst und zusammen mit dem Dorn in die gezeigte herausgezogene Stellung bewegbar und von dem Dorn abnehmbar ist.At the end of the vulcanizing process, the space between the metal cylinder and the casing is ventilated via the valve 13 and the diameter of the mandrel is thus reduced again. At the same time is blown in the heating device in the radial direction, so that the elastic material detaches from the surface of the heating device and is movable together with the mandrel in the drawn-out position shown and is removable from the mandrel.
In der Zwischenzeit ist auf dem zweiten Dorn 14 bereits ein neues Gestrick aufgezogen und mit Rohgummi bzw. einem entspre chenden Kunststoff bestrichen und kann für den nächsten Vulkani sierungsvorgang in die Heizeinrichtung 2 eingefahren werden.In the meantime, a new knitted fabric has already been pulled onto the second mandrel 14 and coated with raw rubber or a corresponding plastic and can be inserted into the heating device 2 for the next vulcanizing process.
Der Innendurchmesser der hohlzylindrischen Heizeinrichtung 2 ist um so viel größer als der Außendurchmesser des mit der ela stischen Ummantelung versehenen Metallzylinders gewählt, daß der Metallzylinder mit darauf aufgebrachtem Gestrick und Gummimasse ohne Berühren der Innenwände der Heizeinrichtung gerade in diese einschiebbar ist.The inside diameter of the hollow cylindrical heating device 2 is chosen so much larger than the outside diameter of the metal cylinder provided with the elastic sheathing that the metal cylinder with knitted fabric and rubber compound applied to it can be inserted straight into it without touching the inside walls of the heating device.
Die elastische Ummantelung ist vorzugsweise aus einem Material wie beispielsweise Aramid hergestellt. Im obigen Ausführungsbei spiel wurde als Druckmedium zum Ausdehnen der Ummantelung Preß luft angegeben. Selbstverständlich kann auch jedes andere gas förmige oder flüssige Medium gewählt werden.The elastic sheath is preferably made of one material such as aramid. In the above example Game was pressed as a pressure medium to expand the casing air specified. Of course, any other gas can shaped or liquid medium can be selected.
Das auf die oben beschriebene Weise hergestellte elastische Ma terial wird in seiner Ausdehnung einmal durch die Eigenschaft des Gummis und zum anderen durch die Dehnbarkeit des Gestricks bestimmt. Vorzugsweise wird deshalb ein Gestrick als Bewehrung gewählt, welches um so viel aus der Ausgangsstellung heraus aus dehnbar ist, wie der Gummi auch dehnbar ist.The elastic Ma produced in the manner described above The extent of the material becomes one of its dimensions of the rubber and on the other hand through the elasticity of the knitted fabric certainly. A knitted fabric is therefore preferred as reinforcement chosen which is so much from the starting position is stretchable, just like the rubber is stretchable.
Das so hergestellte Material ist insbesondere für die Herstel lung von pneumatischen Hohlkörpern mit bidirektionaler Dehnungs fähigkeit geeignet. Zu diesem Zwecke werden Abschnitte gewünsch ter Länge an den Enden miteinander hermetisch verschweißt. An einer geeigneten Stelle wird eine Luftzufuhr vorgesehen oder die Luft wird vor dem Verschweißen zugeführt, so daß Luftkissen ent stehen. Andere Anwendungen für das Material sind endlose Riemen, wie sie zur Kraftübertragung bei Riemenantrieben verwendet wer den.The material thus produced is especially for the manufacturers pneumatic hollow bodies with bidirectional expansion ability suitable. Sections are desired for this purpose ter length hermetically welded together at the ends. At An air supply is provided at a suitable location or the Air is supplied before welding, so that air cushions ent stand. Other uses for the material are endless belts, how they are used for power transmission in belt drives the.
Bei dem obigen Ausführungsbeispiel wurde für die Bewehrung ein Gestrick verwendet. Grundsätzlich kann allgemein ein Ge wirke verwendet werden; ganz bevorzugt wird jedoch ein Ge strick.In the above embodiment, the reinforcement used a knitted fabric. In general, a Ge be used; however, a Ge is very preferred knit.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863627519 DE3627519A1 (en) | 1986-08-13 | 1986-08-13 | Elastic material and process and apparatus for producing it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863627519 DE3627519A1 (en) | 1986-08-13 | 1986-08-13 | Elastic material and process and apparatus for producing it |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3627519A1 true DE3627519A1 (en) | 1988-02-18 |
DE3627519C2 DE3627519C2 (en) | 1989-03-16 |
Family
ID=6307342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863627519 Granted DE3627519A1 (en) | 1986-08-13 | 1986-08-13 | Elastic material and process and apparatus for producing it |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3627519A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2633030A1 (en) * | 1988-06-21 | 1989-12-22 | Merfalon Ltd | Method for manufacturing a pneumatic stopper and stopper produced by implementing this method |
FR2694529A1 (en) * | 1992-08-06 | 1994-02-11 | Takata Corp | Inflatable seat belt system. |
GB2312002A (en) * | 1997-07-08 | 1997-10-15 | Welbeck Uk Limited | Knitted hose reinforcement fabric |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1046562B (en) * | 1952-02-01 | 1958-12-18 | Us Rubber Co | Process for producing a stretchable, well-contracting material for upholstery covers |
DE1635671A1 (en) * | 1965-10-21 | 1971-04-01 | Uniroyal Inc | Method and device for covering a tubular fabric or knitted fabric with a liquid covering material |
DE2337623A1 (en) * | 1972-08-29 | 1974-03-28 | Uniroyal Inc | PROCESS FOR MANUFACTURING VULCANIZED ELASTOMER HOSES |
DE3048957C2 (en) * | 1980-12-24 | 1985-01-31 | Lindauer Dornier Gmbh, 8990 Lindau | Drying system for textile tubular goods |
-
1986
- 1986-08-13 DE DE19863627519 patent/DE3627519A1/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1046562B (en) * | 1952-02-01 | 1958-12-18 | Us Rubber Co | Process for producing a stretchable, well-contracting material for upholstery covers |
DE1635671A1 (en) * | 1965-10-21 | 1971-04-01 | Uniroyal Inc | Method and device for covering a tubular fabric or knitted fabric with a liquid covering material |
DE2337623A1 (en) * | 1972-08-29 | 1974-03-28 | Uniroyal Inc | PROCESS FOR MANUFACTURING VULCANIZED ELASTOMER HOSES |
DE3048957C2 (en) * | 1980-12-24 | 1985-01-31 | Lindauer Dornier Gmbh, 8990 Lindau | Drying system for textile tubular goods |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2633030A1 (en) * | 1988-06-21 | 1989-12-22 | Merfalon Ltd | Method for manufacturing a pneumatic stopper and stopper produced by implementing this method |
FR2694529A1 (en) * | 1992-08-06 | 1994-02-11 | Takata Corp | Inflatable seat belt system. |
GB2312002A (en) * | 1997-07-08 | 1997-10-15 | Welbeck Uk Limited | Knitted hose reinforcement fabric |
Also Published As
Publication number | Publication date |
---|---|
DE3627519C2 (en) | 1989-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |