DE1097250B - Method for joining webs, sheets or sections of flexible materials in the manufacture of honeycomb cores - Google Patents
Method for joining webs, sheets or sections of flexible materials in the manufacture of honeycomb coresInfo
- Publication number
- DE1097250B DE1097250B DEF30076A DEF0030076A DE1097250B DE 1097250 B DE1097250 B DE 1097250B DE F30076 A DEF30076 A DE F30076A DE F0030076 A DEF0030076 A DE F0030076A DE 1097250 B DE1097250 B DE 1097250B
- Authority
- DE
- Germany
- Prior art keywords
- strips
- sections
- sheets
- webs
- web
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000000463 material Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title description 6
- 238000005304 joining Methods 0.000 title description 3
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 239000012815 thermoplastic material Substances 0.000 claims 1
- 241000264877 Hippospongia communis Species 0.000 description 13
- 239000000853 adhesive Substances 0.000 description 9
- 238000004026 adhesive bonding Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0089—Producing honeycomb structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D3/00—Making articles of cellular structure, e.g. insulating board
- B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
- B31D3/0292—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section involving auxiliary operations, e.g. expanding, moistening, glue-applying, joining, controlling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
- E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
- E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Description
Verfahren zum Verbinden von Bahnen, Bogen oder Abschnitten aus flexiblen Materialien beim Herstellen von Wabenkernen Die Erfindung betrifft ein Verfahren zum Verbinden von diskontinuierlich geschichteten flexiblen Materialien, mit schichtweise versetzt zueinander angeordneten Bindemittelstreifen beim Herstellen von Wabenkernen.Method for joining webs, sheets or sections of flexible Materials in the manufacture of honeycomb cores The invention relates to a method for connecting discontinuously layered flexible materials, with layer by layer Binder strips arranged offset to one another in the manufacture of honeycomb cores.
Es sind Verfahren zum Verbinden von Bahnen, Bogen oder Abschnitten beim Herstellen von Wabenkernen bekannt, bei denen das Klebemittel durch eine geeignete Vorrichtung streifenförmig auf die einzelnen Bahnen, Bogen oder Abschnitte aufgetragen, diese übereinandergeschichtet und so zu einem Paket zusammengeklebt werden. Danach wird das Paket in Streifen bestimmter Breite, welche der gewünschten Wabendicke entspricht, geschnitten, dann gereckt, in Kunststoff getaucht und ausgehärtet.They are methods of joining webs, arcs or sections known in the manufacture of honeycomb cores, in which the adhesive by a suitable Device applied in strips to the individual tracks, sheets or sections, these are layered on top of each other and glued together to form a package. Thereafter the package is cut into strips of a certain width, which is the desired honeycomb thickness corresponds, cut, then stretched, dipped in plastic and cured.
Insbesondere für die Herstellung von Wabenkernen aus Papier oder Leichtmetall ist dieses Verfahren gut geeignet. Bei Verwendung von Wabenmaterial aus leicht nachgiebigen und in sich verschiebbar flexiblen Flachmaterial, insbesondere von Faser- und Gewebebahnen treten Schwierigkeiten insofern auf, als daß sich die einzelnen Bahnen, Bogen oder Abschnitte nur sehr schwer übereinander schichten und kleben lassen, so daß eine bestimmte, beispielsweise parallele Lage der Streifen des aufgetragenen Klebers nicht garantiert ist, wodurch Wabenzellen bestimmter geometrisch gleichmäßiger Form schwer herstellbar sind.Especially for the production of honeycomb cores made of paper or light metal this method is well suited. When using honeycomb material made of slightly flexible and slidably flexible flat material, in particular of fiber and fabric webs Difficulties arise in that the individual tracks, arches or It is very difficult to layer sections on top of each other and glue them together so that one certain, for example parallel, position of the strips of the applied adhesive is not guaranteed, whereby honeycomb cells of a certain geometrically uniform shape are difficult to manufacture.
In einem weiteren, speziell für Gewebe bestimmten Verfahren werden die Gewebebahnen vor dem Schichten zunächst mit Kunstharz getränkt und vorgetrocknet. Während des Schichteis werden dann zwischen die Bahnen Streifen aus nicht bindungsfähigem Material zum Schutz gegen das vollständige Zusammenklebender Bahnen eingelegt, welche in einem sich an den Klebevorgang anschließendenReckvorgangwieder entfernt werden. Der Klebevorgang erfolgt unter Druck und Wärme durch Verflüchtigen von Lösungsmittelbestandteilen. Im gereckten Zustand wird dann das Kunstharz endgültig ausgehärtet.In another procedure specially designed for tissue the fabric strips are first impregnated with synthetic resin and pre-dried before layering. During the layer ice, strips of non-bondable material are then formed between the webs Material inserted to protect against the complete sticking together of the webs, which can be removed again in a stretching process that follows the gluing process. The bonding process takes place under pressure and heat by volatilization of solvent components. In the stretched state, the synthetic resin is then finally cured.
Bei diesem Verfahren konnte bisher die Gefahr nicht beseitigt werden, daß sich Klebestellen bei dem Aushärtevorgang immer wieder lösen, wodurch das aus den zusammengeklebten Bahnen bestehende Paket für die Weiterverarbeitung unbrauchbar wird. Außerdem sind hierfür auch relativ wenige Kunstharze geeignet, wodurch die Anwendung dieses Verfahrens eine weitere Einschränkung erfährt.So far, this procedure has not eliminated the risk of that glue points come loose again and again during the curing process, which causes the The existing package of the stuck-together webs is unusable for further processing will. In addition, relatively few synthetic resins are suitable for this, which means that the There is a further limitation to the use of this procedure.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Verbinden von aus Bahnen, Bogen oder Abschnitten bestehenden, diskontinuierlich geschichteten flexiblen Materialien, insbesondere Faser- bzw. Gewebebahnen, zu schaffen, wobei die Bahnen, Bogen oder Abschnitte durch streifenförmig verlaufende Klebestellen miteinander verbunden und die so aus den zusammengeklebten Bahnen, Bogen oder Abschnitten entstandenen Pakete nach Zerschneiden auf eine geeignete Breite zwecks Bildung der Wabenform senkrecht zur Bahnebene auseinandergezogen (gereckt) und in dieser Form vornehmlich durch Tränken in einem aushärtbaren Kunststoff verfestigt werden. Dabei soll trotz Verwendung von flexiblen Bahnen, Bogen oder Abschnitten als Ausgangsprodukt bei der Schichtung der Pakete eine sichere Verklebung der einzelnen Bahnen, Bogen oder Abschnitte und der vorbestimmte Verlauf der Klebestellen garantiert werden.The invention is based on the object of a method for connecting of discontinuously layered layers consisting of webs, sheets or sections to create flexible materials, in particular fiber or fabric webs, wherein the tracks, sheets or sections by gluing points in the form of strips connected to each other and the so from the glued together webs, sheets or sections resulting packages after cutting to a suitable width for the purpose of forming the Honeycomb shape pulled apart (stretched) perpendicular to the plane of the web and in this shape mainly solidified by soaking in a hardenable plastic. Included should be the starting product despite the use of flexible strips, sheets or sections When layering the packages, the individual strips and sheets are securely glued or sections and the predetermined course of the splices can be guaranteed.
Diese Aufgabe wird dadurch gelöst, daß erfindungsgemäß zur Bildung der Klebestellen zwischen die Bahnen, Bogen oder Abschnitte Streifen aus bei Wärmeeinfluß klebend werdendem Material gelegt und die Bahnen, Bogen oder Abschnitte - unter Erwärmung bis zum Eintritt der Klebewirkung der Streifen - aneinandergedrückt werden, worauf dann nach der Abkühlung in an sich bekannter Weise das Zerschneiden, das Recken und die Verfestigung erfolgen.This object is achieved in that according to the invention for formation the splices between the webs, sheets or sections strip off when exposed to heat adhesive to be placed and the webs, sheets or sections - under Warming up until the adhesive effect of the strips - are pressed together, whereupon after cooling in a known manner the cutting, the Stretching and solidification take place.
Durch das erfindungsgemäße Verfahren lassen sich Wabenkerne mit exakt geometrisch gleichmäßiger Form herstellen, wie sie beispielsweise als Stützgerüste für Bauelemente im Flugzeugbau erforderlich sind.With the method according to the invention, honeycomb cores can be exactly Produce a geometrically uniform shape, for example as a support structure are required for components in aircraft construction.
An Hand der Zeichnung sind Einzelheiten und weitere Merkmale der Erfindung näher erläutert.The drawings provide details and further features of the invention explained in more detail.
In der Zeichnung sind mit 1 Bahnen bezeichnet, die aus flexiblem Flachmaterial, vornehmlich aus Faser-bzw. Gewebematerial, bestehen. Zwischen diesen Bahnen 1 werden zwecks Verklebung derselben Streifer12 aus bei Wärmeeinwirkung klebend werdendem Uaterial eingelegt.. Hierfür sind besonders Streifen aus Thermoplasten bzw. Stoffen, die ähnliche Eigenschäften besitzen, geeignet. Die Streifen 2 nehmen-vorzugsweise eine parallele Lage zueinander ein und sind gegenüber den Streifen zwischen dem vorhergehenden bzw. folgenden Bahnenpaar versetzt angeordnet. Das Verkleben der Bahnen-1 untereinander erfolgt unter Erwärmung bis zum Eintritt der Klebewirkung der Streifen durch Aneinänderdrücken der Bahnen. Dabei kann das Aneinanderdrücken der- Bahnen 1 während des Klebevorganges mittels Druckbacken 3 geschehen, die über ein Hebelgetriebe 4 durch eine Kraft P betätigt werden.In the drawing are denoted by 1 tracks, which are made of flexible flat material, mainly from fiber or. Fabric material. Between these For the purpose of gluing the same strips 12, webs 1 become adhesive when exposed to heat material being inserted. For this purpose, strips made of thermoplastics are particularly useful or substances that have similar properties are suitable. Take the strips 2 - preferably a parallel position to each other and are opposite to the strips between the preceding or following pair of tracks arranged offset. Gluing the Lanes-1 one below the other takes place with heating until the adhesive effect occurs the strips by pressing the panels together. This can press against each other of the webs 1 done during the gluing process by means of pressure jaws 3, the over a lever mechanism 4 can be actuated by a force P.
Die erforderliche Wärme während des Klebevorganges läßt sich z. B. mit Hilfe von Elektroden 5 zuführen, die das in die Druckvorrichtung eingespannte Paket mindestens teilweise umgeben und von einem Hochfrequenzgenerator 6 gespeist werden. Die Erwärmung kann aber auch z. B. mit Hilfe von Infrarotstrahlen, an elektrischer Spannung liegenden Heizspiralen bzw. Wärmeöfen erfolgen. Nachdem die Bahnen nach der vorbeschriebenen Art zu einem Paket zusammengeklebt sind, wird dieses Paket senkrecht zur Bahnenebene entsprechend der vorbestimmten Wabendicke durchschnitten. Die Wabenform erhält man dann durch Auseinanderziehen (Recken) des Paketes in senkrechter Richtung zur Bahnenebene. Diese Form wird dann verfestigt, indem sie zweckmäßig in einem aushärtbaren Kunststoff getränkt wird. Das Zerschneiden, Recken und Verfestigen kann nach Belieben auch in einer anderen Reihenfolge erfolgen.The heat required during the gluing process can be, for. B. with the help of electrodes 5, which clamped in the printing device Package at least partially surrounded and fed by a high frequency generator 6 will. The warming can also, for. B. with the help of infrared rays to electrical Tension-lying heating coils or heating ovens take place. After the orbits after are glued together to form a package in the manner described above, this package becomes cut through perpendicular to the plane of the web in accordance with the predetermined honeycomb thickness. The honeycomb shape is then obtained by pulling apart (stretching) the package in a vertical position Direction to the plane of the orbit. This shape is then solidified by being expedient is soaked in a curable plastic. Cutting, stretching and solidifying can be done in a different order if you wish.
Vorteilhaft ist es, die Streifen, die vorzugsweise länger als die Bahnen bemessen sind, durch geeignete Spannvorrichtungen, wie eine mit 7 angedeutet ist, während des Schichtens und Verklebens der Pakete in der gewünschten Lage zu fixieren. Auf diese Weise läßt sich ein einwandfreier Verlauf der Klebestellen und eine exakte geometrische Gleichförmigkeit der Waben erreichen.It is advantageous to use the strips, which are preferably longer than the Tracks are sized by suitable tensioning devices, such as one indicated by 7 is to be in the desired position during the layering and gluing of the packages fix. In this way, a flawless course of the glue points and achieve an exact geometric uniformity of the honeycombs.
Ferner ist es auch möglich, jede Bahn oder jeden Streifen einzeln, unter gesonderter Druck- sowie Erwärmungs- und aufzukleben. Dabei empfiehlt es sich, die Wärmezuführung nur von der mit der Bahn neu beaufschlagten Seite her vorzunehmen. Gegebenenfalls kann jeder einzelne Klebestreifen oder auch jede einzelne Lage von: Klebestreifen vor dein Auflegen auf die flexible Materialbahn bzw. vor dem Bedecken mit der nachfolgenden Bahn in klebrigen Zustand gebracht werden, so daß nur ein Zusam--mendrücken-der neu gebildeten Schicht vor dein nachfolgenden; Erstarren der Klebemasse erforderlich ist Der nach dem vorstehend beschriebenen Verfahren gefertigte Wabenkern zeichnet sich durch die Homogenität des Klebematerials aus. Es kann nicht, wie bisher, vorkommen, daß Luft- oder sonstige unerwünschte Einschlüsse oder gar Leerstellen, an die kein Klebstoff gekommen ist, oder an denen aufgetragener Klebstoff bereits erstarrt war und demzufolge nicht mehr klebte, die Festigkeit der Verbindungsztelle beeinträchtigen.It is also possible to use each track or each strip individually, under separate pressure as well as heating and sticking. It is advisable to to carry out the heat supply only from the side exposed to the web. If necessary, each individual adhesive strip or each individual layer of: Adhesive strips before placing on the flexible material web or before covering with the following web in a sticky state, so that only one Compression of the newly formed layer before the next; Solidification of the Adhesive required is the one produced by the method described above The honeycomb core is characterized by the homogeneity of the adhesive material. It can't as before, it happens that air or other undesirable inclusions or even Empty spaces where no glue has come or where glue has been applied had already solidified and therefore no longer stuck, the strength of the connection point affect.
Die Klebeverbindung ist jetzt an -jeder Stelle von vollkommen gleicher Beschaffenheit und gleicher Bindekraft.The adhesive connection is now completely the same at every point Quality and the same cohesiveness.
Claims (4)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF30076A DE1097250B (en) | 1959-12-14 | 1959-12-14 | Method for joining webs, sheets or sections of flexible materials in the manufacture of honeycomb cores |
| GB4110/60A GB887545A (en) | 1959-12-14 | 1960-02-05 | A method of producing honeycomb structures |
| FR818352A FR1256137A (en) | 1959-12-14 | 1960-02-12 | A method of manufacturing honeycomb arrays and a network according to that obtained by the method or a similar method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF30076A DE1097250B (en) | 1959-12-14 | 1959-12-14 | Method for joining webs, sheets or sections of flexible materials in the manufacture of honeycomb cores |
| GB4110/60A GB887545A (en) | 1959-12-14 | 1960-02-05 | A method of producing honeycomb structures |
| FR818352A FR1256137A (en) | 1959-12-14 | 1960-02-12 | A method of manufacturing honeycomb arrays and a network according to that obtained by the method or a similar method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1097250B true DE1097250B (en) | 1961-01-12 |
Family
ID=27210153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF30076A Pending DE1097250B (en) | 1959-12-14 | 1959-12-14 | Method for joining webs, sheets or sections of flexible materials in the manufacture of honeycomb cores |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1097250B (en) |
| FR (1) | FR1256137A (en) |
| GB (1) | GB887545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1144097B (en) * | 1961-06-16 | 1963-02-21 | Pfaff Plastic Ges Fuer Ind Tec | Method for producing a seam-like connection between individual webs or blanks made of thin paper, fiber fleece or the like, as well as device for carrying out the method |
| DE1266616B (en) * | 1961-08-09 | 1968-04-18 | Ver Leichtmetallwerke Gmbh | Interrupted adhesive film for the production of metal honeycomb materials |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792295A (en) * | 1996-08-12 | 1998-08-11 | Plascore, Inc. | Honeycomb fabrication |
| FR2857616B1 (en) * | 2003-07-18 | 2007-04-06 | Solvay | METHOD FOR ASSEMBLING ELEMENTS OF A STRUCTURE COMPRISING A HONEYCOMB SOUL |
| US20070251637A1 (en) * | 2006-04-26 | 2007-11-01 | James Barss | Locally bonding multi-layer arrays |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2610934A (en) * | 1948-11-22 | 1952-09-16 | California Refinforced Plastic | Method of and apparatus for making honeycomb material |
| DE875135C (en) * | 1946-08-28 | 1953-04-30 | American Viscose Corp | Method and apparatus for forming a tube from a web |
-
1959
- 1959-12-14 DE DEF30076A patent/DE1097250B/en active Pending
-
1960
- 1960-02-05 GB GB4110/60A patent/GB887545A/en not_active Expired
- 1960-02-12 FR FR818352A patent/FR1256137A/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE875135C (en) * | 1946-08-28 | 1953-04-30 | American Viscose Corp | Method and apparatus for forming a tube from a web |
| US2610934A (en) * | 1948-11-22 | 1952-09-16 | California Refinforced Plastic | Method of and apparatus for making honeycomb material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1144097B (en) * | 1961-06-16 | 1963-02-21 | Pfaff Plastic Ges Fuer Ind Tec | Method for producing a seam-like connection between individual webs or blanks made of thin paper, fiber fleece or the like, as well as device for carrying out the method |
| DE1266616B (en) * | 1961-08-09 | 1968-04-18 | Ver Leichtmetallwerke Gmbh | Interrupted adhesive film for the production of metal honeycomb materials |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1256137A (en) | 1961-03-17 |
| GB887545A (en) | 1962-01-17 |
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