DE102017128398B3 - Method and device for welding at least two films by means of laser - Google Patents
Method and device for welding at least two films by means of laser Download PDFInfo
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- DE102017128398B3 DE102017128398B3 DE102017128398.6A DE102017128398A DE102017128398B3 DE 102017128398 B3 DE102017128398 B3 DE 102017128398B3 DE 102017128398 A DE102017128398 A DE 102017128398A DE 102017128398 B3 DE102017128398 B3 DE 102017128398B3
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- clamping
- clamping unit
- welding
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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
- B29C66/01—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
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
- B23K26/0846—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt for moving elongated workpieces longitudinally, e.g. wire or strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/244—Overlap seam welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
-
- 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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
-
- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
-
- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
-
- 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
- B29C66/343—Making tension-free or wrinkle-free joints
-
- 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
- B29C66/343—Making tension-free or wrinkle-free joints
- B29C66/3432—Making tension-free or wrinkle-free joints by holding the material loose or tension-free during joining
-
- 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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/16—Bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/30—Organic material
- B23K2103/42—Plastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Verschweißen von wenigstens zwei Folien mittels Laser. Um eine untere Folie (1) und eine obere Folie (2) innerhalb eines Schweißbereiches (SB) kraftschlüssig und damit spaltfrei aneinander zu legen, wird die zwischen zwei Klemmeinheiten (4.1), (4.2) über eine Klemmlänge (l) eingespannte obere Folie (2) durch Verstellung der Klemmeinheiten (4.1), (4.2) zueinander und / oder zu einer Auflage (3), auf der die untere Folie (1) aufliegt, in Richtung zur unteren Folie (1) hin gewölbt. The invention relates to a method and a device for welding at least two films by means of laser. In order to place a lower film (1) and an upper film (2) in a non-positive and therefore gap-free manner within a welding region (SB), the upper film clamped between two clamping units (4.1), (4.2) over a clamping length (l) ( 2) by adjusting the clamping units (4.1), (4.2) to each other and / or to a support (3) on which the lower foil (1) rests, curved in the direction of the lower film (1).
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung mit der wenigstens zwei Folien übereinander liegend mittels Laser verschweißt werden können.The invention relates to a method and a device with which at least two films can be superposed by means of laser welding.
Die Qualität einer Schweißverbindung hängt unter anderem davon ab, wie gut die beiden Schweißpartner in dem Bereich innerhalb dem sie verschweißt werden sollen, nachfolgend Schweißbereich genannt, in Kontakt stehen. Idealerweise liegen sie in diesem Bereich unter Druck spaltfrei aneinander, sodass die über einen der Schweißpartner eingetragene Energie ohne Widerstand in den anderen Schweißpartner geleitet wird. Problematisch hierbei ist, gleichzeitig in den Schweißbereich sowohl eine Andruckkraft einzubringen als auch einen ungehinderten Wärmeeintrag zu ermöglichen.The quality of a welded joint depends, among other things, on how well the two welding partners are in contact with each other in the area within which they are to be welded, referred to below as the welding area. Ideally, they lie in this area under pressure without gaps, so that the energy introduced via one of the welding partners is conducted without resistance into the other welding partner. The problem here is to bring both a pressure force at the same time in the welding area and to allow unhindered heat input.
Bei einem aus der Offenlegungsschrift
Aus der Praxis ist es bekannt, die Schweißpartner um den Schweißbereich miteinander zu verspannen. Das kann über ortsfeste Verspanneinrichtungen, z.B. Niederhalter im weitesten Sinne oder mit dem Schweißwerkzeug mitgeführte Verspanneinrichtungen, z.B. federgelagerte Andruckrollen, erfolgen. Dabei wird eine Andruckkraft senkrecht auf die aneinandergrenzenden Oberflächen der Schweißpartner eingebracht. Das funktioniert bei steifen Schweißpartnern recht gut, jedoch bei Schweißpartnern wie Folien, die in Richtung ihre Dicke eine nur geringe Biegesteifigkeit aufweisen, nur unzureichend, sodass die Folien nicht gesichert spaltfrei miteinander verschweißt werden können.From practice it is known to clamp the welding partners around the welding area with each other. This can be done via fixed bracing devices, e.g. Downholder in the broadest sense or with the welding tool entrained Verspanneinrichtungen, e.g. spring-loaded pressure rollers, carried out. In this case, a pressing force is introduced perpendicular to the adjacent surfaces of the welding partners. This works well with rigid welding partners, but with welding partners such as foils, which have only a slight bending stiffness in the direction of their thickness, they are inadequate, so that the foils can not be welded together securely and without a gap.
Es ist die Aufgabe der Erfindung, ein Verfahren zu finden, mit dem wenigstens zwei Folien gesichert spaltfrei miteinander verschweißt werden können.It is the object of the invention to find a method by means of which at least two films can be securely welded together without a gap.
Es ist auch Aufgabe der Erfindung, eine Vorrichtung zu finden, mit der wenigstens zwei Folien gesichert spaltfrei miteinander verschweißt werden können.It is also an object of the invention to find a device with which at least two films can be welded secured gap-free with each other.
Die Aufgabe wird für ein Verfahren mit den Merkmalen des Anspruches 1 erfüllt.The object is achieved for a method with the features of
Vorteilhafte Ausführungen sind in den rückbezogenen Ansprüchen 2 bis 6 angegeben.Advantageous embodiments are given in the
Die Aufgabe wird für eine Vorrichtung mit den Merkmalen des Anspruches 7 erfüllt.The object is achieved for a device with the features of claim 7.
Vorteilhafte Ausführungen sind in den rückbezogenen Ansprüchen 8 bis 11 angegeben.Advantageous embodiments are given in the dependent claims 8 to 11.
Die Erfindung soll nachfolgend anhand von Ausführungsbeispielen mit Hilfe von Zeichnungen näher erläutert werden. Hierzu zeigen:
-
1a eine Prinzipdarstellung der straff gehaltenenoberen Folie 2 und deren Relativlage zu derunteren Folie 1 bei einem ersten Anordnungsabstanda1 und einer ersten Anordnungshöheh1 der Klemmeinheiten4.1 ,4.2 zueinander bzw. zu derAuflage 3 in einer ersten Ausführung einer Vorrichtung, -
1b eine Prinzipdarstellung des Verformungszustandes deroberen Folie 2 und deren Relativlage zu derunteren Folie 1 bei einem zweiten Anordnungsabstanda2 , kleiner dem ersten Anordnungsabstanda1 , und der ersten Anordnungshöheh1 der Klemmeinheiten4.1 ,4.2 zueinander bzw. zu derAuflage 3 , -
1c eine Prinzipdarstellung des Verformungszustandes deroberen Folie 2 und deren Relativlage zu derunteren Folie 1 bei dem zweiten Anordnungsabstanda2 und einer zweiten Anordnungshöheh2 , kleiner der ersten Anordnungshöheh1 , -
1d eine Prinzipdarstellung des Verformungszustandes deroberen Folie 2 und deren Relativlage zu derunteren Folie 1 bei dem zweiten Anordnungsabstanda2 und einer dritten Anordnungshöheh3 , kleiner der zweiten Anordnungshöheh2 , -
2 eine Prinzipskizze einer vorteilhaften Ausführung einer Vorrichtung, -
3a eine Prinzipdarstellung der überUmlenkrollen 5 straff gehaltenenoberen Folie 2 und deren Relativlage zu derunteren Folie 1 bei einem ersten Anordnungsabstanda1 und einer ersten Anordnungshöheh1 der Klemmeinheiten4.1 ,4.2 zueinander bzw. zu derAuflage 3 , -
3b eine Prinzipdarstellung des Verformungszustandes deroberen Folie 2 und deren Relativlage zu derunteren Folie 1 bei einem zweiten Anordnungsabstanda2 , kleiner dem ersten Anordnungsabstandesa1 und der ersten Anordnungshöheh1 der Klemmeinheiten4.1 ,4.2 zueinander bzw. zu derAuflage 3 und -
4 eine Prinzipskizze einer weiteren vorteilhaften Ausführung einer Vorrichtung.
-
1a a schematic representation of the tightly heldtop sheet 2 and their relative position to thelower film 1 at a first arrangement distancea 1 and one first arrangement heighth 1 the clamping units4.1 .4.2 to each other or to theedition 3 in a first embodiment of a device, -
1b a schematic representation of the deformation state of theupper film 2 and their relative position to thelower film 1 at a second arrangement pitcha 2 , less the first arrangement distancea 1 , and the first arrangement heighth 1 the clamping units4.1 .4.2 to each other or to theedition 3 . -
1c a schematic representation of the deformation state of theupper film 2 and their relative position to thelower film 1 at the second arrangement pitcha 2 and a second arrangement heighth 2 , smaller than the first arrangement heighth 1 . -
1d a schematic representation of the deformation state of theupper film 2 and their relative position to thelower film 1 at the second arrangement pitcha 2 and a third arrangement heighth 3 , smaller than the second arrangement heighth 2 . -
2 a schematic diagram of an advantageous embodiment of a device, -
3a a schematic representation of the overpulleys 5 Tautupper foil 2 and their relative position to thelower film 1 at a first arrangement distancea 1 and a first arrangement heighth 1 the clamping units4.1 .4.2 to each other or to theedition 3 . -
3b a schematic representation of the deformation state of theupper film 2 and their relative position to thelower film 1 at a second arrangement pitcha 2 , less the first arrangement distancea 1 and the first arrangement heighth 1 the clamping units4.1 .4.2 to each other or to theedition 3 and -
4 a schematic diagram of a further advantageous embodiment of a device.
Mit einem erfindungsgemäßen Verfahren werden wenigstens eine untere und eine obere Folie
Zur Durchführung des Verschweißens wird die untere Folie
Es ist erfindungswesentlich, dass die obere Folie
Hierfür gib es verschiedene Ausgangssituationen.There are different starting situations for this.
In einer ersten Ausgangssituation wird die obere Folie
Alternativ wird in einer zweiten Ausgangssituation die obere Folie
Das Verfahren mit der zweiten Ausgangssituation zu beginnen, ist insbesondere dann vorteilhaft, wenn die obere Folie
The method starting with the second starting situation is particularly advantageous when the
Die zweite Ausgangssituation kann auch geschaffen werden, wenn die obere Folie
Für den Fall, dass die untere Folie
Unabhängig von der Ausgangssituation und von der Verstellung der beiden Klemmeinheiten
Das Verfahren hat grundsätzlich den Vorteil, dass innerhalb des Schweißbereiches
Darüber hinaus hat es den Vorteil, dass eine flächig wirkende Andruckkraft erzeugt wird, sodass die obere Folie
Das Verfahren ist auch bevorzugt geeignet, wenn die obere und die untere Folie nicht plan sondern dreidimensional, z.B. wellenförmig, miteinander verschweißt werden sollen.The method is also preferably suitable when the top and bottom foils are not planar but three-dimensional, e.g. wavy, to be welded together.
Eine einfache Ausführung einer erfindungsgemäßen Vorrichtung zum Verschweißen einer unteren und einer oberen Folie
Eine erfindungsgemäße Vorrichtung weist gleich einer Vorrichtung gemäß dem Stand der Technik eine Auflage
In der in
Vorteilhaft sind die Umlenkrollen
Die Oberfläche der Auflage
Die Auflage
Vorteilhaft sind die erste und zweite Klemmeinheit
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- untere Folielower foil
- 22
- obere Folieupper foil
- 33
- Auflageedition
- 4.14.1
- erste Klemmeinheitfirst clamping unit
- 4.24.2
- zweite Klemmeinheitsecond clamping unit
- 55
- Umlenkrolleidler pulley
- 66
- Laserstrahllaser beam
- SBSB
- Schweißbereichwelding area
- aa
- veränderbarer Anordnungsabstandchangeable arrangement distance
- hH
- veränderbare Anordnungshöhevariable arrangement height
- II
- Klemmlängeclamping length
- bb
- Bandabstandbandgap
- VRVR
- Vorschubrichtungfeed direction
- MM
- Mittelliniecenter line
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017128398.6A DE102017128398B3 (en) | 2017-11-30 | 2017-11-30 | Method and device for welding at least two films by means of laser |
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Application Number | Priority Date | Filing Date | Title |
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DE102017128398.6A DE102017128398B3 (en) | 2017-11-30 | 2017-11-30 | Method and device for welding at least two films by means of laser |
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Publication Number | Publication Date |
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DE102017128398B3 true DE102017128398B3 (en) | 2019-05-23 |
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DE102017128398.6A Active DE102017128398B3 (en) | 2017-11-30 | 2017-11-30 | Method and device for welding at least two films by means of laser |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110154401A (en) * | 2019-06-11 | 2019-08-23 | 湖北龙青科技有限公司 | Plastics school shape laser welding process |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014212003A1 (en) | 2014-06-23 | 2015-12-24 | Conti Temic Microelectronic Gmbh | Method of manufacturing an electronic assembly and electronic assembly |
-
2017
- 2017-11-30 DE DE102017128398.6A patent/DE102017128398B3/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014212003A1 (en) | 2014-06-23 | 2015-12-24 | Conti Temic Microelectronic Gmbh | Method of manufacturing an electronic assembly and electronic assembly |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110154401A (en) * | 2019-06-11 | 2019-08-23 | 湖北龙青科技有限公司 | Plastics school shape laser welding process |
CN110154401B (en) * | 2019-06-11 | 2021-10-01 | 湖北龙青科技有限公司 | Plastic shape correction laser welding process |
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