DE3934062C2 - - Google Patents
Info
- Publication number
- DE3934062C2 DE3934062C2 DE19893934062 DE3934062A DE3934062C2 DE 3934062 C2 DE3934062 C2 DE 3934062C2 DE 19893934062 DE19893934062 DE 19893934062 DE 3934062 A DE3934062 A DE 3934062A DE 3934062 C2 DE3934062 C2 DE 3934062C2
- Authority
- DE
- Germany
- Prior art keywords
- tool according
- welding
- cutting device
- welding stamp
- stamp
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 claims description 54
- 238000005520 cutting process Methods 0.000 claims description 23
- 238000004049 embossing Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 239000002783 friction material Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- 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
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
- B23K20/106—Features related to sonotrodes
-
- 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
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
-
- 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
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
- B29C65/7461—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool for making welds and cuts of other than simple rectilinear form
-
- 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
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
- B29C66/82421—Pneumatic or hydraulic drives using an inflatable element positioned between the joining tool and a backing-up part
-
- 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
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
-
- 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
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
-
- 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
- B29L2031/732—Floor coverings
- B29L2031/7322—Carpets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
Die Erfindung betrifft ein Werkzeug zum Vibrationsschweißen und Schneiden gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a tool for vibration welding and cutting according to the preamble of claim 1.
Durch Vibrationsschweißen mit einem Schweißstempel sollen zweiflächige Werkstücke miteinander verschweißt werden, wo rauf die nichtangeschweißten Teile des oberen Flächengebil des durch einen Stanzvorgang entfernt werden sollen. In einer bevorzugten Ausführungsform soll ein Folienteil auf einem Teppich befestigt werden, in dem eine Folienbahn ent sprechend der Kontur des Folienteils auf den Teppich aufge schweißt wird und dann der Randüberstand ausgestanzt und entfernt wird. Es hat sich als schwierig erwiesen, den Folienrandüberstand in einfacher Weise und sauber zu entfer nen.By vibration welding with a welding stamp double-surface workpieces are welded together where on the non-welded parts of the upper surface which are to be removed by a punching process. In a preferred embodiment is intended to be a film part be attached to a carpet in which a film web ent speaking on the contour of the film part on the carpet is welded and then the overhang is punched out and Will get removed. It turned out to be difficult Film edge protrusion can be removed easily and cleanly nen.
Der Erfindung liegt deshalb die Aufgabe zugrunde, ein kombi niertes Werkzeug zu schaffen, mit dem es in einfacher Weise möglich ist, das Verschweißen und anschließend das Ausstan zen durchzuführen.The invention is therefore based on the object, a combi ned tool to create it with simple is possible, the welding and then the punching zen.
Die genannte Aufgabe ist erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention, the stated object is based on the features of claim 1 solved.
Ein besonderer Vorteil der Erfindung ist darin zu sehen, daß nach dem Verschweißen der beiden übereinanderliegenden Flä chengebilde mit dem gleichen Werkzeug ein Schneidvorgang ausgeführt werden kann, um die außerhalb des Schweißbereichs liegenden Teile sauber abzutrennen. Durch die sinnvolle Ver knüpfung einer Vibrationsschweißeinrichtung mit einer Schneideinrichtung ist es möglich, für den geschilderten An wendungsbereich das Vibrationsschweißen wirtschaftlich ein zusetzen. A particular advantage of the invention is that after welding the two superimposed surfaces chengebilde with the same tool a cutting process can be carried out outside the welding area cleanly separate lying parts. Through the meaningful ver linking a vibration welding device with a Cutting device it is possible for the described to vibration welding economically clog.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous further developments of the invention result from the subclaims.
In einer bevorzugten Ausführungsform der Erfindung ist der Schwingkopf zum Antrieb des Schweißstempels an einer Träger platte befestigt, an deren Unterseite die Schneideinrichtung befestigt ist. Der Schweißstempel ist gegenüber der Träger platte und damit der Schneideinrichtung verschiebbar ange ordnet und wird von aufblasbaren Druckschläuchen in die vor geschobene Lage gebracht, in der der Schweißstempel mit Flä chen an der Trägerplatte verspannt wird, so daß die in die Trägerplatte vom Schwingkopf eingebrachte Schwingungsenergie auf den Schweißstempel übertragen wird. Nach dem Schweißen werden die Druckschläuche entlüftet, so daß der Schweißstem pel zurückweicht, wenn Trägerplatte und Maschinentisch ge geneinander verschoben werden, um den Stanzvorgang auszufüh ren, der von einem Anschlag begrenzt wird.In a preferred embodiment of the invention, the Swing head for driving the welding stamp on a carrier plate attached, on the underside of the cutting device is attached. The welding stamp is opposite the carrier plate and thus the cutter is slidably attached arranges and gets into the front by inflatable pressure tubes brought pushed position in which the welding stamp with flä Chen is clamped to the support plate, so that the in Carrier plate vibrational energy introduced by the oscillating head is transferred to the welding stamp. After welding the pressure hoses are vented, so that the welding stem pel backs away when the carrier plate and machine table ge moved against each other to perform the punching process ren, which is limited by a stop.
Ein Ausführungsbeispiel der Erfindung ist nachstehend anhand der Zeichnung näher erläutert, in deren einziger Figur ein Schnitt durch das Werkzeug dargestellt ist.An embodiment of the invention is shown below the drawing explained in detail in its single figure Section through the tool is shown.
In der Zeichnung ist ein Maschinentisch 1 schematisch ange deutet, auf dem eine Platte 2 zum Halten eines Teppichbasis materials befestigt ist. Auf dem Teppich soll beipielsweise als Trittschutz ein Kunststoff-Folienteil aufgeschweißt wer den, wobei nach dem Schweißen der überstehende Rand des Fo lienteils sauber abgetrennt werden soll. Der Maschinentisch 1 ist verschiebbar angetrieben und wird linear gegen das Oberwerkzeug bewegt und an dieses mit dem Schweiß- bzw. Schneiddruck angepreßt.In the drawing, a machine table 1 is schematically indicated, on which a plate 2 for holding a carpet base material is attached. For example, a plastic film part should be welded onto the carpet as a step protection, and after welding the protruding edge of the film part should be cleanly separated. The machine table 1 is displaceably driven and is moved linearly against the upper tool and pressed against it with the welding or cutting pressure.
Das Oberwerkzeug besteht aus einer feststehenden Träger platte 4, an der wie bei 5 angedeutet ein Vibrationsschwing kopf befestigt ist. Solche Vibrations-Schweißköpfe arbeiten beispielsweise mit 100 oder 240 Hz Arbeitsfrequenz und brau chen nicht mehr beschrieben zu werden. Die Trägerplatte 4 weist einen Ausschnitt 6 auf, in dem ein Schweißstempel 10 aufgenommen ist. Der Schweißstempel 10 ist an seiner Vor derseite mit einem Profil 11 versehen, so daß beim Schweißen auch ein Prägevorgang erfolgt. Der Schweißstempel 10 ist von einer Schneideinrichtung 12 umgeben, die an der Trägerplatte 4 befestigt ist.The upper tool consists of a fixed carrier plate 4 , on which, as indicated at 5, a vibrating head is attached. Such vibration welding heads work for example with 100 or 240 Hz working frequency and need not be described. The carrier plate 4 has a cutout 6 in which a welding stamp 10 is received. The welding stamp 10 is provided on its front side with a profile 11 , so that an embossing process takes place during welding. The welding stamp 10 is surrounded by a cutting device 12 which is fastened to the carrier plate 4 .
Auf der Trägerplatte 4 ist ein Deckel 15 befestigt. Zwischen dem Deckel 15 und der Oberseite 16 des Schweißstempels ist eine Kammer 17 vorgesehen. In der Kammer sind mehrere Druck schläuche 18 eingesetzt, die mit einer nicht dargestellten Druckmittelquelle und einem Ventil verbunden sind. Beim Auf blasen der Schläuche 18 dehnen sich diese aus und drücken den Schweißstempel 10 in die dargestellte vorgeschobene Lage. Werden die Druckschläuche 18 entlüftet, so kann der Schweißstempel 10 in die Kammer 17 zurückgeschoben werden.On the carrier plate 4 , a lid 15 is attached. A chamber 17 is provided between the cover 15 and the top 16 of the welding stamp. In the chamber several pressure hoses 18 are used, which are connected to a pressure medium source, not shown, and a valve. When blowing on the hoses 18 these expand and press the welding stamp 10 into the advanced position shown. If the pressure hoses 18 are vented, the welding stamp 10 can be pushed back into the chamber 17 .
In der vorgeschobenen Stellung wird der Schweißstempel 10 mit der Trägerplatte 4 damit mit dem Schwingkopf 5 ver spannt. Hierzu weist der Schweißstempel einen radialen Flansch 20 mit einer schräg gerichteten Unterseite 21 auf, die an einen entsprechend schrägen Abschnitt 22 eines Schuhs 23 andrückbar ist, der an der Platte 4 befestigt ist. Um die Übertragung der Schwingungsenergie auf den Schweißstempel 10 zu verbessern, ist außerdem zwischen den Schrägflächen 21 und 22 eine Druckplatte 25 eingesetzt, die aus einem Reib werkstoff besteht und etwas nachgiebig ist, um ein sattes Anliegen zu ermöglichen. Der Druck wird von den Druckschläu chen 18 aufgebracht.In the advanced position, the welding stamp 10 is thus clamped to the oscillating head 5 with the support plate 4 . For this purpose, the welding stamp has a radial flange 20 with an obliquely directed underside 21 which can be pressed against a correspondingly oblique section 22 of a shoe 23 which is fastened to the plate 4 . In order to improve the transmission of the vibrational energy to the welding stamp 10 , a pressure plate 25 is also inserted between the inclined surfaces 21 and 22 , which consists of a friction material and is somewhat resilient in order to enable a tight fit. The pressure is applied by the pressure hoses 18 .
Eine Kühlung des Schweißstempels 10 erfolgt durch Kühlkanäle 26. Nicht dargestellte Schläuche für das Zu- und Abführen des Kühlmittels sind am Schweißstempel 10 befestigt und füh ren durch Öffnungen 27 im Deckel 15 nach außen. Die Schneid einrichtung 12 ist beheizbar. Es können Heizpatronen oder ein Heizmantel 28 vorgesehen sein. Über einen am Maschinen tisch 1 einstellbar befestigten Anschlag 30 ist der Abstand zwischen Platte 2 und Schneidklingenkranz 31 einstellbar.The welding stamp 10 is cooled by cooling channels 26 . Hoses, not shown, for the supply and discharge of the coolant are attached to the welding stamp 10 and lead through openings 27 in the cover 15 to the outside. The cutting device 12 is heated. Heating cartridges or a heating jacket 28 can be provided. The distance between the plate 2 and the cutting blade ring 31 can be adjusted via an adjustable stop 30 attached to the machine table 1 .
Die Wirkungsweise ist wie folgt:The mode of action is as follows:
Nach dem Auflegen des Teppichs und der Folie auf die Platte 2 wird der Maschinentisch 1 mit einem geregelten Schweiß druck nach oben gefahren. Der Schweißstempel 10 ist druckbe aufschlagt in der dargestellten Lage. Entsprechend dem am Maschinentisch eingestellten Schweißdruck, der Antriebsfunk tion des Schwingkopfes und dessen Schwingweite wird eine Friktionschweißung bzw. Prägung erzielt. Anschließend wird die Druckbeaufschlagung der Schläuche 18 aufgehoben, und der Maschinentisch 1 wird mit dem erforderlichen Schneiddruck beaufschlagt. Der Schweißstempel 10 weicht zurück. Die Tischbewegung wird durch den verstellbaren Anschlag 30 be grenzt. Der beim Schweißen mitschwingende, beheizte Schneid klingenkranz 31 wird in die aufgeschweißte Folie gepreßt, und in einem Perforationsschnitt erfolgt das Durchtrennen. Gleichzeitig findet der für das Vibrationsschweißen erfor derliche Nachwirk-Halteprozeß statt. Anschließend wird der Maschinentisch 1 nach unten gefahren und der Schweißstempel 10 mittels der Schläuche 18 druckbeaufschlagt. Der Teppich mit dem aufgeschweißten und beschnittenen Folienteil kann entnommen werden, wobei der Randüberstand perforiert oder lose ist.After placing the carpet and the film on the plate 2 , the machine table 1 is moved upwards with a regulated welding pressure. The welding stamp 10 is pressurized in the position shown. Friction welding or embossing is achieved in accordance with the welding pressure set on the machine table, the drive function of the oscillating head and its oscillation width. The pressurization of the tubes 18 is then released and the machine table 1 is subjected to the required cutting pressure. The welding stamp 10 withdraws. The table movement is limited by the adjustable stop 30 be. The resonating during welding, heated cutting blade ring 31 is pressed into the welded film, and a perforation cut in the cutting takes place. At the same time, the after-effect holding process required for vibration welding takes place. The machine table 1 is then moved downward and the welding stamp 10 is pressurized by means of the hoses 18 . The carpet with the welded and trimmed film part can be removed, whereby the edge overhang is perforated or loose.
Zum thermischen Isolieren der beheizten Schneideinrichtung 12 können isolierende Zwischenschichten 33 am Schweißstempel und der Trägerplatte vorgesehen sein.For the thermal insulation of the heated cutting device 12 , insulating intermediate layers 33 can be provided on the welding stamp and the carrier plate.
Claims (19)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893934062 DE3934062A1 (en) | 1989-10-12 | 1989-10-12 | Combined tool for vibrational welding and cutting of flat workpieces - where welding ram is located in its forward position by inflatable tubes and gripped by sides of device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893934062 DE3934062A1 (en) | 1989-10-12 | 1989-10-12 | Combined tool for vibrational welding and cutting of flat workpieces - where welding ram is located in its forward position by inflatable tubes and gripped by sides of device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3934062A1 DE3934062A1 (en) | 1991-04-18 |
DE3934062C2 true DE3934062C2 (en) | 1992-03-26 |
Family
ID=6391316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893934062 Granted DE3934062A1 (en) | 1989-10-12 | 1989-10-12 | Combined tool for vibrational welding and cutting of flat workpieces - where welding ram is located in its forward position by inflatable tubes and gripped by sides of device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3934062A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9200239U1 (en) * | 1992-01-11 | 1992-03-05 | Diedenhofen, Klaus-Peter, Dipl.-Ing., 6148 Heppenheim | Device for welding workpieces made of thermoplastic |
DE4211279A1 (en) * | 1992-04-03 | 1993-10-07 | Branson Ultraschall | Friction-welding machine for two thermoplastic components - has electromagnetic coil to vibrate one component against other end against springs attached to holder in plane containing vibration nodes |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2080608B1 (en) * | 2001-03-28 | 2012-12-19 | Unicharm Corporation | Sealing apparatus and manufacturing process of soft article having sealed portion |
DE10245904A1 (en) | 2002-10-01 | 2004-04-15 | Mann + Hummel Gmbh | Device for welding two thermoplastic molded parts |
AU2003293944A1 (en) * | 2002-12-20 | 2004-07-22 | Forschung + Entwicklung Klaus Dobernecker Ing. Grad. | Device for welding a cylindrical body such as a tube to a platelike body such as a heat dissipation strip by using acoustic waves |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4786356A (en) * | 1987-05-21 | 1988-11-22 | Branson Ultrasonics Corporation | High frequency resonator for welding material |
DD265103A1 (en) * | 1987-09-11 | 1989-02-22 | Nachrichten Elektronik Zft | TOOL TO ULTRASOUND PLASTIC |
-
1989
- 1989-10-12 DE DE19893934062 patent/DE3934062A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9200239U1 (en) * | 1992-01-11 | 1992-03-05 | Diedenhofen, Klaus-Peter, Dipl.-Ing., 6148 Heppenheim | Device for welding workpieces made of thermoplastic |
DE4211279A1 (en) * | 1992-04-03 | 1993-10-07 | Branson Ultraschall | Friction-welding machine for two thermoplastic components - has electromagnetic coil to vibrate one component against other end against springs attached to holder in plane containing vibration nodes |
Also Published As
Publication number | Publication date |
---|---|
DE3934062A1 (en) | 1991-04-18 |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
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 |